WIP

Nathan Sobo created

Change summary

Cargo.lock                                         |     2 
crates/editor2/src/display_map.rs                  |     5 
crates/editor2/src/display_map/wrap_map.rs         |     2 
crates/editor2/src/editor.rs                       | 15127 +++++++--------
crates/editor2/src/items.rs                        |   227 
crates/editor2/src/movement.rs                     |   962 
crates/editor2/src/scroll.rs                       |    28 
crates/editor2/src/scroll/autoscroll.rs            |    17 
crates/editor2/src/test/editor_lsp_test_context.rs |   594 
crates/editor2/src/test/editor_test_context.rs     |    24 
crates/gpui2/src/geometry.rs                       |     4 
crates/workspace2/src/item.rs                      |     2 
12 files changed, 8,488 insertions(+), 8,506 deletions(-)

Detailed changes

Cargo.lock 🔗

@@ -2648,7 +2648,7 @@ dependencies = [
  "lazy_static",
  "log",
  "lsp2",
- "multi_buffer",
+ "multi_buffer2",
  "ordered-float 2.10.0",
  "parking_lot 0.11.2",
  "postage",

crates/editor2/src/display_map.rs 🔗

@@ -6,17 +6,16 @@ mod wrap_map;
 
 use crate::{
     link_go_to_definition::InlayHighlight, movement::TextLayoutDetails, Anchor, AnchorRangeExt,
-    EditorStyle, InlayId, MultiBuffer, MultiBufferSnapshot, ToOffset, ToPoint,
+    InlayId, MultiBuffer, MultiBufferSnapshot, ToOffset, ToPoint,
 };
 pub use block_map::{BlockMap, BlockPoint};
 use collections::{BTreeMap, HashMap, HashSet};
 use fold_map::FoldMap;
-use gpui::{FontId, HighlightStyle, Hsla, Line, Model, ModelContext, UnderlineStyle};
+use gpui::{FontId, HighlightStyle, Hsla, Line, Model, ModelContext};
 use inlay_map::InlayMap;
 use language::{
     language_settings::language_settings, OffsetUtf16, Point, Subscription as BufferSubscription,
 };
-use lsp::DiagnosticSeverity;
 use std::{any::TypeId, borrow::Cow, fmt::Debug, num::NonZeroU32, ops::Range, sync::Arc};
 use sum_tree::{Bias, TreeMap};
 use tab_map::TabMap;

crates/editor2/src/display_map/wrap_map.rs 🔗

@@ -73,7 +73,7 @@ impl WrapMap {
         wrap_width: Option<f32>,
         cx: &mut AppContext,
     ) -> (Model<Self>, WrapSnapshot) {
-        let handle = cx.add_model(|cx| {
+        let handle = cx.build_model(|cx| {
             let mut this = Self {
                 font: (font_id, font_size),
                 wrap_width: None,

crates/editor2/src/editor.rs 🔗

@@ -19,15 +19,11 @@ pub mod selections_collection;
 mod editor_tests;
 #[cfg(any(test, feature = "test-support"))]
 pub mod test;
-use ::git::diff::DiffHunk;
 use aho_corasick::AhoCorasick;
-use anyhow::{anyhow, Context, Result};
 use blink_manager::BlinkManager;
-use client::{ClickhouseEvent, Client, Collaborator, ParticipantIndex, TelemetrySettings};
-use clock::{Global, ReplicaId};
-use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
-use convert_case::{Case, Casing};
-use copilot::Copilot;
+use client::{Collaborator, ParticipantIndex};
+use clock::ReplicaId;
+use collections::{HashMap, HashSet, VecDeque};
 pub use display_map::DisplayPoint;
 use display_map::*;
 pub use editor_settings::EditorSettings;
@@ -37,43 +33,26 @@ pub use element::{
 use futures::FutureExt;
 use fuzzy::{StringMatch, StringMatchCandidate};
 use gpui::{
-    serde_json, AnyElement, AppContext, AsyncAppContext, ClipboardItem, Element, Entity,
-    EventEmitter, FontWeight, HighlightStyle, Hsla, Model, Pixels, Quad, Render, Subscription,
-    Task, Text, View, ViewContext, WeakView, WindowContext,
+    AnyElement, AppContext, Element, EventEmitter, Model, Pixels, Render, Subscription, Task, View,
+    ViewContext, WeakView,
 };
-use highlight_matching_bracket::refresh_matching_bracket_highlights;
-use hover_popover::{hide_hover, HoverState};
-use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
+use hover_popover::HoverState;
 pub use items::MAX_TAB_TITLE_LEN;
-use itertools::Itertools;
 pub use language::{char_kind, CharKind};
 use language::{
     language_settings::{self, all_language_settings, InlayHintSettings},
-    point_from_lsp, AutoindentMode, BracketPair, Buffer, CodeAction, CodeLabel, Completion,
-    CursorShape, Diagnostic, DiagnosticSeverity, File, IndentKind, IndentSize, Language,
-    LanguageRegistry, LanguageServerName, OffsetRangeExt, OffsetUtf16, Point, Selection,
-    SelectionGoal, TransactionId,
+    AutoindentMode, BracketPair, Buffer, CodeAction, Completion, CursorShape, Diagnostic, Language,
+    OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
 };
-use link_go_to_definition::{
-    hide_link_definition, show_link_definition, GoToDefinitionLink, InlayHighlight,
-    LinkGoToDefinitionState,
-};
-use log::error;
-use lsp::LanguageServerId;
-use movement::TextLayoutDetails;
-use multi_buffer::ToOffsetUtf16;
+use link_go_to_definition::LinkGoToDefinitionState;
 pub use multi_buffer::{
     Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
     ToPoint,
 };
-use ordered_float::OrderedFloat;
 use parking_lot::RwLock;
-use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
-use rand::{seq::SliceRandom, thread_rng};
-use rpc::proto::{self, PeerId};
-use scroll::{
-    autoscroll::Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide,
-};
+use project::Project;
+use rpc::proto::*;
+use scroll::{autoscroll::Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager};
 use selections_collection::SelectionsCollection;
 use serde::{Deserialize, Serialize};
 use settings::Settings;
@@ -1763,7577 +1742,7577 @@ impl InlayHintRefreshReason {
     }
 }
 
-// impl Editor {
-//     pub fn single_line(
-//         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
-//         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
-//         Self::new(EditorMode::SingleLine, buffer, None, field_editor_style, cx)
-//     }
+impl Editor {
+    //     pub fn single_line(
+    //         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
+    //         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
+    //         Self::new(EditorMode::SingleLine, buffer, None, field_editor_style, cx)
+    //     }
+
+    //     pub fn multi_line(
+    //         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
+    //         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
+    //         Self::new(EditorMode::Full, buffer, None, field_editor_style, cx)
+    //     }
+
+    //     pub fn auto_height(
+    //         max_lines: usize,
+    //         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
+    //         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
+    //         Self::new(
+    //             EditorMode::AutoHeight { max_lines },
+    //             buffer,
+    //             None,
+    //             field_editor_style,
+    //             cx,
+    //         )
+    //     }
+
+    //     pub fn for_buffer(
+    //         buffer: Model<Buffer>,
+    //         project: Option<Model<Project>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
+    //         Self::new(EditorMode::Full, buffer, project, None, cx)
+    //     }
+
+    //     pub fn for_multibuffer(
+    //         buffer: Model<MultiBuffer>,
+    //         project: Option<Model<Project>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         Self::new(EditorMode::Full, buffer, project, None, cx)
+    //     }
+
+    //     pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
+    //         let mut clone = Self::new(
+    //             self.mode,
+    //             self.buffer.clone(),
+    //             self.project.clone(),
+    //             self.get_field_editor_theme.clone(),
+    //             cx,
+    //         );
+    //         self.display_map.update(cx, |display_map, cx| {
+    //             let snapshot = display_map.snapshot(cx);
+    //             clone.display_map.update(cx, |display_map, cx| {
+    //                 display_map.set_state(&snapshot, cx);
+    //             });
+    //         });
+    //         clone.selections.clone_state(&self.selections);
+    //         clone.scroll_manager.clone_state(&self.scroll_manager);
+    //         clone.searchable = self.searchable;
+    //         clone
+    //     }
+
+    //     fn new(
+    //         mode: EditorMode,
+    //         buffer: Model<MultiBuffer>,
+    //         project: Option<Model<Project>>,
+    //         get_field_editor_theme: Option<Arc<GetFieldEditorTheme>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Self {
+    //         let editor_view_id = cx.view_id();
+    //         let display_map = cx.add_model(|cx| {
+    //             let settings = settings::get::<ThemeSettings>(cx);
+    //             let style = build_style(settings, get_field_editor_theme.as_deref(), None, cx);
+    //             DisplayMap::new(
+    //                 buffer.clone(),
+    //                 style.text.font_id,
+    //                 style.text.font_size,
+    //                 None,
+    //                 2,
+    //                 1,
+    //                 cx,
+    //             )
+    //         });
+
+    //         let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
+
+    //         let blink_manager = cx.add_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
+
+    //         let soft_wrap_mode_override =
+    //             (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
+
+    //         let mut project_subscriptions = Vec::new();
+    //         if mode == EditorMode::Full {
+    //             if let Some(project) = project.as_ref() {
+    //                 if buffer.read(cx).is_singleton() {
+    //                     project_subscriptions.push(cx.observe(project, |_, _, cx| {
+    //                         cx.emit(Event::TitleChanged);
+    //                     }));
+    //                 }
+    //                 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
+    //                     if let project::Event::RefreshInlayHints = event {
+    //                         editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
+    //                     };
+    //                 }));
+    //             }
+    //         }
+
+    //         let inlay_hint_settings = inlay_hint_settings(
+    //             selections.newest_anchor().head(),
+    //             &buffer.read(cx).snapshot(cx),
+    //             cx,
+    //         );
+
+    //         let mut this = Self {
+    //             handle: cx.weak_handle(),
+    //             buffer: buffer.clone(),
+    //             display_map: display_map.clone(),
+    //             selections,
+    //             scroll_manager: ScrollManager::new(),
+    //             columnar_selection_tail: None,
+    //             add_selections_state: None,
+    //             select_next_state: None,
+    //             select_prev_state: None,
+    //             selection_history: Default::default(),
+    //             autoclose_regions: Default::default(),
+    //             snippet_stack: Default::default(),
+    //             select_larger_syntax_node_stack: Vec::new(),
+    //             ime_transaction: Default::default(),
+    //             active_diagnostics: None,
+    //             soft_wrap_mode_override,
+    //             get_field_editor_theme,
+    //             collaboration_hub: project.clone().map(|project| Box::new(project) as _),
+    //             project,
+    //             focused: false,
+    //             blink_manager: blink_manager.clone(),
+    //             show_local_selections: true,
+    //             mode,
+    //             show_gutter: mode == EditorMode::Full,
+    //             show_wrap_guides: None,
+    //             placeholder_text: None,
+    //             highlighted_rows: None,
+    //             background_highlights: Default::default(),
+    //             inlay_background_highlights: Default::default(),
+    //             nav_history: None,
+    //             context_menu: RwLock::new(None),
+    //             mouse_context_menu: cx
+    //                 .add_view(|cx| context_menu::ContextMenu::new(editor_view_id, cx)),
+    //             completion_tasks: Default::default(),
+    //             next_completion_id: 0,
+    //             next_inlay_id: 0,
+    //             available_code_actions: Default::default(),
+    //             code_actions_task: Default::default(),
+    //             document_highlights_task: Default::default(),
+    //             pending_rename: Default::default(),
+    //             searchable: true,
+    //             override_text_style: None,
+    //             cursor_shape: Default::default(),
+    //             autoindent_mode: Some(AutoindentMode::EachLine),
+    //             collapse_matches: false,
+    //             workspace: None,
+    //             keymap_context_layers: Default::default(),
+    //             input_enabled: true,
+    //             read_only: false,
+    //             leader_peer_id: None,
+    //             remote_id: None,
+    //             hover_state: Default::default(),
+    //             link_go_to_definition_state: Default::default(),
+    //             copilot_state: Default::default(),
+    //             // inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
+    //             gutter_hovered: false,
+    //             pixel_position_of_newest_cursor: None,
+    //             _subscriptions: vec![
+    //                 cx.observe(&buffer, Self::on_buffer_changed),
+    //                 cx.subscribe(&buffer, Self::on_buffer_event),
+    //                 cx.observe(&display_map, Self::on_display_map_changed),
+    //                 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
+    //                 cx.observe_global::<SettingsStore, _>(Self::settings_changed),
+    //                 cx.observe_window_activation(|editor, active, cx| {
+    //                     editor.blink_manager.update(cx, |blink_manager, cx| {
+    //                         if active {
+    //                             blink_manager.enable(cx);
+    //                         } else {
+    //                             blink_manager.show_cursor(cx);
+    //                             blink_manager.disable(cx);
+    //                         }
+    //                     });
+    //                 }),
+    //             ],
+    //         };
+
+    //         this._subscriptions.extend(project_subscriptions);
+
+    //         this.end_selection(cx);
+    //         this.scroll_manager.show_scrollbar(cx);
+
+    //         let editor_created_event = EditorCreated(cx.handle());
+    //         cx.emit_global(editor_created_event);
+
+    //         if mode == EditorMode::Full {
+    //             let should_auto_hide_scrollbars = cx.platform().should_auto_hide_scrollbars();
+    //             cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
+    //         }
+
+    //         this.report_editor_event("open", None, cx);
+    //         this
+    //     }
+
+    //     pub fn new_file(
+    //         workspace: &mut Workspace,
+    //         _: &workspace::NewFile,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) {
+    //         let project = workspace.project().clone();
+    //         if project.read(cx).is_remote() {
+    //             cx.propagate_action();
+    //         } else if let Some(buffer) = project
+    //             .update(cx, |project, cx| project.create_buffer("", None, cx))
+    //             .log_err()
+    //         {
+    //             workspace.add_item(
+    //                 Box::new(cx.add_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
+    //                 cx,
+    //             );
+    //         }
+    //     }
+
+    //     pub fn new_file_in_direction(
+    //         workspace: &mut Workspace,
+    //         action: &workspace::NewFileInDirection,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) {
+    //         let project = workspace.project().clone();
+    //         if project.read(cx).is_remote() {
+    //             cx.propagate_action();
+    //         } else if let Some(buffer) = project
+    //             .update(cx, |project, cx| project.create_buffer("", None, cx))
+    //             .log_err()
+    //         {
+    //             workspace.split_item(
+    //                 action.0,
+    //                 Box::new(cx.add_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
+    //                 cx,
+    //             );
+    //         }
+    //     }
+
+    //     pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
+    //         self.buffer.read(cx).replica_id()
+    //     }
+
+    //     pub fn leader_peer_id(&self) -> Option<PeerId> {
+    //         self.leader_peer_id
+    //     }
+
+    pub fn buffer(&self) -> &Model<MultiBuffer> {
+        &self.buffer
+    }
 
-//     pub fn multi_line(
-//         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
-//         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
-//         Self::new(EditorMode::Full, buffer, None, field_editor_style, cx)
-//     }
+    //     fn workspace(&self, cx: &AppContext) -> Option<ViewHandle<Workspace>> {
+    //         self.workspace.as_ref()?.0.upgrade(cx)
+    //     }
+
+    //     pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
+    //         self.buffer().read(cx).title(cx)
+    //     }
+
+    //     pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
+    //         EditorSnapshot {
+    //             mode: self.mode,
+    //             show_gutter: self.show_gutter,
+    //             display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
+    //             scroll_anchor: self.scroll_manager.anchor(),
+    //             ongoing_scroll: self.scroll_manager.ongoing_scroll(),
+    //             placeholder_text: self.placeholder_text.clone(),
+    //             is_focused: self
+    //                 .handle
+    //                 .upgrade(cx)
+    //                 .map_or(false, |handle| handle.is_focused(cx)),
+    //         }
+    //     }
+
+    //     pub fn language_at<'a, T: ToOffset>(
+    //         &self,
+    //         point: T,
+    //         cx: &'a AppContext,
+    //     ) -> Option<Arc<Language>> {
+    //         self.buffer.read(cx).language_at(point, cx)
+    //     }
+
+    //     pub fn file_at<'a, T: ToOffset>(&self, point: T, cx: &'a AppContext) -> Option<Arc<dyn File>> {
+    //         self.buffer.read(cx).read(cx).file_at(point).cloned()
+    //     }
+
+    //     pub fn active_excerpt(
+    //         &self,
+    //         cx: &AppContext,
+    //     ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
+    //         self.buffer
+    //             .read(cx)
+    //             .excerpt_containing(self.selections.newest_anchor().head(), cx)
+    //     }
+
+    //     pub fn style(&self, cx: &AppContext) -> EditorStyle {
+    //         build_style(
+    //             settings::get::<ThemeSettings>(cx),
+    //             self.get_field_editor_theme.as_deref(),
+    //             self.override_text_style.as_deref(),
+    //             cx,
+    //         )
+    //     }
+
+    //     pub fn mode(&self) -> EditorMode {
+    //         self.mode
+    //     }
+
+    //     pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
+    //         self.collaboration_hub.as_deref()
+    //     }
+
+    //     pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
+    //         self.collaboration_hub = Some(hub);
+    //     }
+
+    //     pub fn set_placeholder_text(
+    //         &mut self,
+    //         placeholder_text: impl Into<Arc<str>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.placeholder_text = Some(placeholder_text.into());
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
+    //         self.cursor_shape = cursor_shape;
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
+    //         self.collapse_matches = collapse_matches;
+    //     }
+
+    //     pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
+    //         if self.collapse_matches {
+    //             return range.start..range.start;
+    //         }
+    //         range.clone()
+    //     }
+
+    //     pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
+    //         if self.display_map.read(cx).clip_at_line_ends != clip {
+    //             self.display_map
+    //                 .update(cx, |map, _| map.clip_at_line_ends = clip);
+    //         }
+    //     }
+
+    //     pub fn set_keymap_context_layer<Tag: 'static>(
+    //         &mut self,
+    //         context: KeymapContext,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.keymap_context_layers
+    //             .insert(TypeId::of::<Tag>(), context);
+    //         cx.notify();
+    //     }
+
+    //     pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.keymap_context_layers.remove(&TypeId::of::<Tag>());
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_input_enabled(&mut self, input_enabled: bool) {
+    //         self.input_enabled = input_enabled;
+    //     }
+
+    //     pub fn set_autoindent(&mut self, autoindent: bool) {
+    //         if autoindent {
+    //             self.autoindent_mode = Some(AutoindentMode::EachLine);
+    //         } else {
+    //             self.autoindent_mode = None;
+    //         }
+    //     }
+
+    //     pub fn read_only(&self) -> bool {
+    //         self.read_only
+    //     }
+
+    //     pub fn set_read_only(&mut self, read_only: bool) {
+    //         self.read_only = read_only;
+    //     }
+
+    //     pub fn set_field_editor_style(
+    //         &mut self,
+    //         style: Option<Arc<GetFieldEditorTheme>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.get_field_editor_theme = style;
+    //         cx.notify();
+    //     }
+
+    //     fn selections_did_change(
+    //         &mut self,
+    //         local: bool,
+    //         old_cursor_position: &Anchor,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if self.focused && self.leader_peer_id.is_none() {
+    //             self.buffer.update(cx, |buffer, cx| {
+    //                 buffer.set_active_selections(
+    //                     &self.selections.disjoint_anchors(),
+    //                     self.selections.line_mode,
+    //                     self.cursor_shape,
+    //                     cx,
+    //                 )
+    //             });
+    //         }
+
+    //         let display_map = self
+    //             .display_map
+    //             .update(cx, |display_map, cx| display_map.snapshot(cx));
+    //         let buffer = &display_map.buffer_snapshot;
+    //         self.add_selections_state = None;
+    //         self.select_next_state = None;
+    //         self.select_prev_state = None;
+    //         self.select_larger_syntax_node_stack.clear();
+    //         self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
+    //         self.snippet_stack
+    //             .invalidate(&self.selections.disjoint_anchors(), buffer);
+    //         self.take_rename(false, cx);
+
+    //         let new_cursor_position = self.selections.newest_anchor().head();
+
+    //         self.push_to_nav_history(
+    //             old_cursor_position.clone(),
+    //             Some(new_cursor_position.to_point(buffer)),
+    //             cx,
+    //         );
+
+    //         if local {
+    //             let new_cursor_position = self.selections.newest_anchor().head();
+    //             let mut context_menu = self.context_menu.write();
+    //             let completion_menu = match context_menu.as_ref() {
+    //                 Some(ContextMenu::Completions(menu)) => Some(menu),
+
+    //                 _ => {
+    //                     *context_menu = None;
+    //                     None
+    //                 }
+    //             };
+
+    //             if let Some(completion_menu) = completion_menu {
+    //                 let cursor_position = new_cursor_position.to_offset(buffer);
+    //                 let (word_range, kind) =
+    //                     buffer.surrounding_word(completion_menu.initial_position.clone());
+    //                 if kind == Some(CharKind::Word)
+    //                     && word_range.to_inclusive().contains(&cursor_position)
+    //                 {
+    //                     let mut completion_menu = completion_menu.clone();
+    //                     drop(context_menu);
+
+    //                     let query = Self::completion_query(buffer, cursor_position);
+    //                     cx.spawn(move |this, mut cx| async move {
+    //                         completion_menu
+    //                             .filter(query.as_deref(), cx.background().clone())
+    //                             .await;
+
+    //                         this.update(&mut cx, |this, cx| {
+    //                             let mut context_menu = this.context_menu.write();
+    //                             let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
+    //                                 return;
+    //                             };
+
+    //                             if menu.id > completion_menu.id {
+    //                                 return;
+    //                             }
+
+    //                             *context_menu = Some(ContextMenu::Completions(completion_menu));
+    //                             drop(context_menu);
+    //                             cx.notify();
+    //                         })
+    //                     })
+    //                     .detach();
+
+    //                     self.show_completions(&ShowCompletions, cx);
+    //                 } else {
+    //                     drop(context_menu);
+    //                     self.hide_context_menu(cx);
+    //                 }
+    //             } else {
+    //                 drop(context_menu);
+    //             }
+
+    //             hide_hover(self, cx);
+
+    //             if old_cursor_position.to_display_point(&display_map).row()
+    //                 != new_cursor_position.to_display_point(&display_map).row()
+    //             {
+    //                 self.available_code_actions.take();
+    //             }
+    //             self.refresh_code_actions(cx);
+    //             self.refresh_document_highlights(cx);
+    //             refresh_matching_bracket_highlights(self, cx);
+    //             self.discard_copilot_suggestion(cx);
+    //         }
+
+    //         self.blink_manager.update(cx, BlinkManager::pause_blinking);
+    //         cx.emit(Event::SelectionsChanged { local });
+    //         cx.notify();
+    //     }
+
+    //     pub fn change_selections<R>(
+    //         &mut self,
+    //         autoscroll: Option<Autoscroll>,
+    //         cx: &mut ViewContext<Self>,
+    //         change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
+    //     ) -> R {
+    //         let old_cursor_position = self.selections.newest_anchor().head();
+    //         self.push_to_selection_history();
+
+    //         let (changed, result) = self.selections.change_with(cx, change);
+
+    //         if changed {
+    //             if let Some(autoscroll) = autoscroll {
+    //                 self.request_autoscroll(autoscroll, cx);
+    //             }
+    //             self.selections_did_change(true, &old_cursor_position, cx);
+    //         }
+
+    //         result
+    //     }
+
+    //     pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
+    //     where
+    //         I: IntoIterator<Item = (Range<S>, T)>,
+    //         S: ToOffset,
+    //         T: Into<Arc<str>>,
+    //     {
+    //         if self.read_only {
+    //             return;
+    //         }
+
+    //         self.buffer
+    //             .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
+    //     }
+
+    //     pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
+    //     where
+    //         I: IntoIterator<Item = (Range<S>, T)>,
+    //         S: ToOffset,
+    //         T: Into<Arc<str>>,
+    //     {
+    //         if self.read_only {
+    //             return;
+    //         }
+
+    //         self.buffer.update(cx, |buffer, cx| {
+    //             buffer.edit(edits, self.autoindent_mode.clone(), cx)
+    //         });
+    //     }
+
+    //     pub fn edit_with_block_indent<I, S, T>(
+    //         &mut self,
+    //         edits: I,
+    //         original_indent_columns: Vec<u32>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) where
+    //         I: IntoIterator<Item = (Range<S>, T)>,
+    //         S: ToOffset,
+    //         T: Into<Arc<str>>,
+    //     {
+    //         if self.read_only {
+    //             return;
+    //         }
+
+    //         self.buffer.update(cx, |buffer, cx| {
+    //             buffer.edit(
+    //                 edits,
+    //                 Some(AutoindentMode::Block {
+    //                     original_indent_columns,
+    //                 }),
+    //                 cx,
+    //             )
+    //         });
+    //     }
+
+    //     fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
+    //         self.hide_context_menu(cx);
+
+    //         match phase {
+    //             SelectPhase::Begin {
+    //                 position,
+    //                 add,
+    //                 click_count,
+    //             } => self.begin_selection(position, add, click_count, cx),
+    //             SelectPhase::BeginColumnar {
+    //                 position,
+    //                 goal_column,
+    //             } => self.begin_columnar_selection(position, goal_column, cx),
+    //             SelectPhase::Extend {
+    //                 position,
+    //                 click_count,
+    //             } => self.extend_selection(position, click_count, cx),
+    //             SelectPhase::Update {
+    //                 position,
+    //                 goal_column,
+    //                 scroll_position,
+    //             } => self.update_selection(position, goal_column, scroll_position, cx),
+    //             SelectPhase::End => self.end_selection(cx),
+    //         }
+    //     }
+
+    //     fn extend_selection(
+    //         &mut self,
+    //         position: DisplayPoint,
+    //         click_count: usize,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let tail = self.selections.newest::<usize>(cx).tail();
+    //         self.begin_selection(position, false, click_count, cx);
+
+    //         let position = position.to_offset(&display_map, Bias::Left);
+    //         let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
+
+    //         let mut pending_selection = self
+    //             .selections
+    //             .pending_anchor()
+    //             .expect("extend_selection not called with pending selection");
+    //         if position >= tail {
+    //             pending_selection.start = tail_anchor;
+    //         } else {
+    //             pending_selection.end = tail_anchor;
+    //             pending_selection.reversed = true;
+    //         }
+
+    //         let mut pending_mode = self.selections.pending_mode().unwrap();
+    //         match &mut pending_mode {
+    //             SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
+    //             _ => {}
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.set_pending(pending_selection, pending_mode)
+    //         });
+    //     }
+
+    //     fn begin_selection(
+    //         &mut self,
+    //         position: DisplayPoint,
+    //         add: bool,
+    //         click_count: usize,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if !self.focused {
+    //             cx.focus_self();
+    //         }
+
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = &display_map.buffer_snapshot;
+    //         let newest_selection = self.selections.newest_anchor().clone();
+    //         let position = display_map.clip_point(position, Bias::Left);
+
+    //         let start;
+    //         let end;
+    //         let mode;
+    //         let auto_scroll;
+    //         match click_count {
+    //             1 => {
+    //                 start = buffer.anchor_before(position.to_point(&display_map));
+    //                 end = start.clone();
+    //                 mode = SelectMode::Character;
+    //                 auto_scroll = true;
+    //             }
+    //             2 => {
+    //                 let range = movement::surrounding_word(&display_map, position);
+    //                 start = buffer.anchor_before(range.start.to_point(&display_map));
+    //                 end = buffer.anchor_before(range.end.to_point(&display_map));
+    //                 mode = SelectMode::Word(start.clone()..end.clone());
+    //                 auto_scroll = true;
+    //             }
+    //             3 => {
+    //                 let position = display_map
+    //                     .clip_point(position, Bias::Left)
+    //                     .to_point(&display_map);
+    //                 let line_start = display_map.prev_line_boundary(position).0;
+    //                 let next_line_start = buffer.clip_point(
+    //                     display_map.next_line_boundary(position).0 + Point::new(1, 0),
+    //                     Bias::Left,
+    //                 );
+    //                 start = buffer.anchor_before(line_start);
+    //                 end = buffer.anchor_before(next_line_start);
+    //                 mode = SelectMode::Line(start.clone()..end.clone());
+    //                 auto_scroll = true;
+    //             }
+    //             _ => {
+    //                 start = buffer.anchor_before(0);
+    //                 end = buffer.anchor_before(buffer.len());
+    //                 mode = SelectMode::All;
+    //                 auto_scroll = false;
+    //             }
+    //         }
+
+    //         self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
+    //             if !add {
+    //                 s.clear_disjoint();
+    //             } else if click_count > 1 {
+    //                 s.delete(newest_selection.id)
+    //             }
+
+    //             s.set_pending_anchor_range(start..end, mode);
+    //         });
+    //     }
+
+    //     fn begin_columnar_selection(
+    //         &mut self,
+    //         position: DisplayPoint,
+    //         goal_column: u32,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if !self.focused {
+    //             cx.focus_self();
+    //         }
+
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let tail = self.selections.newest::<Point>(cx).tail();
+    //         self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
+
+    //         self.select_columns(
+    //             tail.to_display_point(&display_map),
+    //             position,
+    //             goal_column,
+    //             &display_map,
+    //             cx,
+    //         );
+    //     }
+
+    //     fn update_selection(
+    //         &mut self,
+    //         position: DisplayPoint,
+    //         goal_column: u32,
+    //         scroll_position: Vector2F,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+
+    //         if let Some(tail) = self.columnar_selection_tail.as_ref() {
+    //             let tail = tail.to_display_point(&display_map);
+    //             self.select_columns(tail, position, goal_column, &display_map, cx);
+    //         } else if let Some(mut pending) = self.selections.pending_anchor() {
+    //             let buffer = self.buffer.read(cx).snapshot(cx);
+    //             let head;
+    //             let tail;
+    //             let mode = self.selections.pending_mode().unwrap();
+    //             match &mode {
+    //                 SelectMode::Character => {
+    //                     head = position.to_point(&display_map);
+    //                     tail = pending.tail().to_point(&buffer);
+    //                 }
+    //                 SelectMode::Word(original_range) => {
+    //                     let original_display_range = original_range.start.to_display_point(&display_map)
+    //                         ..original_range.end.to_display_point(&display_map);
+    //                     let original_buffer_range = original_display_range.start.to_point(&display_map)
+    //                         ..original_display_range.end.to_point(&display_map);
+    //                     if movement::is_inside_word(&display_map, position)
+    //                         || original_display_range.contains(&position)
+    //                     {
+    //                         let word_range = movement::surrounding_word(&display_map, position);
+    //                         if word_range.start < original_display_range.start {
+    //                             head = word_range.start.to_point(&display_map);
+    //                         } else {
+    //                             head = word_range.end.to_point(&display_map);
+    //                         }
+    //                     } else {
+    //                         head = position.to_point(&display_map);
+    //                     }
+
+    //                     if head <= original_buffer_range.start {
+    //                         tail = original_buffer_range.end;
+    //                     } else {
+    //                         tail = original_buffer_range.start;
+    //                     }
+    //                 }
+    //                 SelectMode::Line(original_range) => {
+    //                     let original_range = original_range.to_point(&display_map.buffer_snapshot);
+
+    //                     let position = display_map
+    //                         .clip_point(position, Bias::Left)
+    //                         .to_point(&display_map);
+    //                     let line_start = display_map.prev_line_boundary(position).0;
+    //                     let next_line_start = buffer.clip_point(
+    //                         display_map.next_line_boundary(position).0 + Point::new(1, 0),
+    //                         Bias::Left,
+    //                     );
+
+    //                     if line_start < original_range.start {
+    //                         head = line_start
+    //                     } else {
+    //                         head = next_line_start
+    //                     }
+
+    //                     if head <= original_range.start {
+    //                         tail = original_range.end;
+    //                     } else {
+    //                         tail = original_range.start;
+    //                     }
+    //                 }
+    //                 SelectMode::All => {
+    //                     return;
+    //                 }
+    //             };
+
+    //             if head < tail {
+    //                 pending.start = buffer.anchor_before(head);
+    //                 pending.end = buffer.anchor_before(tail);
+    //                 pending.reversed = true;
+    //             } else {
+    //                 pending.start = buffer.anchor_before(tail);
+    //                 pending.end = buffer.anchor_before(head);
+    //                 pending.reversed = false;
+    //             }
+
+    //             self.change_selections(None, cx, |s| {
+    //                 s.set_pending(pending, mode);
+    //             });
+    //         } else {
+    //             error!("update_selection dispatched with no pending selection");
+    //             return;
+    //         }
+
+    //         self.set_scroll_position(scroll_position, cx);
+    //         cx.notify();
+    //     }
+
+    //     fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.columnar_selection_tail.take();
+    //         if self.selections.pending_anchor().is_some() {
+    //             let selections = self.selections.all::<usize>(cx);
+    //             self.change_selections(None, cx, |s| {
+    //                 s.select(selections);
+    //                 s.clear_pending();
+    //             });
+    //         }
+    //     }
+
+    //     fn select_columns(
+    //         &mut self,
+    //         tail: DisplayPoint,
+    //         head: DisplayPoint,
+    //         goal_column: u32,
+    //         display_map: &DisplaySnapshot,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let start_row = cmp::min(tail.row(), head.row());
+    //         let end_row = cmp::max(tail.row(), head.row());
+    //         let start_column = cmp::min(tail.column(), goal_column);
+    //         let end_column = cmp::max(tail.column(), goal_column);
+    //         let reversed = start_column < tail.column();
+
+    //         let selection_ranges = (start_row..=end_row)
+    //             .filter_map(|row| {
+    //                 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
+    //                     let start = display_map
+    //                         .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
+    //                         .to_point(display_map);
+    //                     let end = display_map
+    //                         .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
+    //                         .to_point(display_map);
+    //                     if reversed {
+    //                         Some(end..start)
+    //                     } else {
+    //                         Some(start..end)
+    //                     }
+    //                 } else {
+    //                     None
+    //                 }
+    //             })
+    //             .collect::<Vec<_>>();
+
+    //         self.change_selections(None, cx, |s| {
+    //             s.select_ranges(selection_ranges);
+    //         });
+    //         cx.notify();
+    //     }
+
+    //     pub fn has_pending_nonempty_selection(&self) -> bool {
+    //         let pending_nonempty_selection = match self.selections.pending_anchor() {
+    //             Some(Selection { start, end, .. }) => start != end,
+    //             None => false,
+    //         };
+    //         pending_nonempty_selection || self.columnar_selection_tail.is_some()
+    //     }
+
+    //     pub fn has_pending_selection(&self) -> bool {
+    //         self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
+    //     }
+
+    //     pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
+    //         if self.take_rename(false, cx).is_some() {
+    //             return;
+    //         }
+
+    //         if hide_hover(self, cx) {
+    //             return;
+    //         }
+
+    //         if self.hide_context_menu(cx).is_some() {
+    //             return;
+    //         }
+
+    //         if self.discard_copilot_suggestion(cx) {
+    //             return;
+    //         }
+
+    //         if self.snippet_stack.pop().is_some() {
+    //             return;
+    //         }
+
+    //         if self.mode == EditorMode::Full {
+    //             if self.active_diagnostics.is_some() {
+    //                 self.dismiss_diagnostics(cx);
+    //                 return;
+    //             }
+
+    //             if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
+    //                 return;
+    //             }
+    //         }
+
+    //         cx.propagate_action();
+    //     }
+
+    //     pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
+    //         let text: Arc<str> = text.into();
+
+    //         if self.read_only {
+    //             return;
+    //         }
+
+    //         let selections = self.selections.all_adjusted(cx);
+    //         let mut brace_inserted = false;
+    //         let mut edits = Vec::new();
+    //         let mut new_selections = Vec::with_capacity(selections.len());
+    //         let mut new_autoclose_regions = Vec::new();
+    //         let snapshot = self.buffer.read(cx).read(cx);
+
+    //         for (selection, autoclose_region) in
+    //             self.selections_with_autoclose_regions(selections, &snapshot)
+    //         {
+    //             if let Some(scope) = snapshot.language_scope_at(selection.head()) {
+    //                 // Determine if the inserted text matches the opening or closing
+    //                 // bracket of any of this language's bracket pairs.
+    //                 let mut bracket_pair = None;
+    //                 let mut is_bracket_pair_start = false;
+    //                 if !text.is_empty() {
+    //                     // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
+    //                     //  and they are removing the character that triggered IME popup.
+    //                     for (pair, enabled) in scope.brackets() {
+    //                         if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
+    //                             bracket_pair = Some(pair.clone());
+    //                             is_bracket_pair_start = true;
+    //                             break;
+    //                         } else if pair.end.as_str() == text.as_ref() {
+    //                             bracket_pair = Some(pair.clone());
+    //                             break;
+    //                         }
+    //                     }
+    //                 }
+
+    //                 if let Some(bracket_pair) = bracket_pair {
+    //                     if selection.is_empty() {
+    //                         if is_bracket_pair_start {
+    //                             let prefix_len = bracket_pair.start.len() - text.len();
+
+    //                             // If the inserted text is a suffix of an opening bracket and the
+    //                             // selection is preceded by the rest of the opening bracket, then
+    //                             // insert the closing bracket.
+    //                             let following_text_allows_autoclose = snapshot
+    //                                 .chars_at(selection.start)
+    //                                 .next()
+    //                                 .map_or(true, |c| scope.should_autoclose_before(c));
+    //                             let preceding_text_matches_prefix = prefix_len == 0
+    //                                 || (selection.start.column >= (prefix_len as u32)
+    //                                     && snapshot.contains_str_at(
+    //                                         Point::new(
+    //                                             selection.start.row,
+    //                                             selection.start.column - (prefix_len as u32),
+    //                                         ),
+    //                                         &bracket_pair.start[..prefix_len],
+    //                                     ));
+    //                             if following_text_allows_autoclose && preceding_text_matches_prefix {
+    //                                 let anchor = snapshot.anchor_before(selection.end);
+    //                                 new_selections.push((selection.map(|_| anchor), text.len()));
+    //                                 new_autoclose_regions.push((
+    //                                     anchor,
+    //                                     text.len(),
+    //                                     selection.id,
+    //                                     bracket_pair.clone(),
+    //                                 ));
+    //                                 edits.push((
+    //                                     selection.range(),
+    //                                     format!("{}{}", text, bracket_pair.end).into(),
+    //                                 ));
+    //                                 brace_inserted = true;
+    //                                 continue;
+    //                             }
+    //                         }
+
+    //                         if let Some(region) = autoclose_region {
+    //                             // If the selection is followed by an auto-inserted closing bracket,
+    //                             // then don't insert that closing bracket again; just move the selection
+    //                             // past the closing bracket.
+    //                             let should_skip = selection.end == region.range.end.to_point(&snapshot)
+    //                                 && text.as_ref() == region.pair.end.as_str();
+    //                             if should_skip {
+    //                                 let anchor = snapshot.anchor_after(selection.end);
+    //                                 new_selections
+    //                                     .push((selection.map(|_| anchor), region.pair.end.len()));
+    //                                 continue;
+    //                             }
+    //                         }
+    //                     }
+    //                     // If an opening bracket is 1 character long and is typed while
+    //                     // text is selected, then surround that text with the bracket pair.
+    //                     else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
+    //                         edits.push((selection.start..selection.start, text.clone()));
+    //                         edits.push((
+    //                             selection.end..selection.end,
+    //                             bracket_pair.end.as_str().into(),
+    //                         ));
+    //                         brace_inserted = true;
+    //                         new_selections.push((
+    //                             Selection {
+    //                                 id: selection.id,
+    //                                 start: snapshot.anchor_after(selection.start),
+    //                                 end: snapshot.anchor_before(selection.end),
+    //                                 reversed: selection.reversed,
+    //                                 goal: selection.goal,
+    //                             },
+    //                             0,
+    //                         ));
+    //                         continue;
+    //                     }
+    //                 }
+    //             }
+
+    //             // If not handling any auto-close operation, then just replace the selected
+    //             // text with the given input and move the selection to the end of the
+    //             // newly inserted text.
+    //             let anchor = snapshot.anchor_after(selection.end);
+    //             new_selections.push((selection.map(|_| anchor), 0));
+    //             edits.push((selection.start..selection.end, text.clone()));
+    //         }
+
+    //         drop(snapshot);
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 buffer.edit(edits, this.autoindent_mode.clone(), cx);
+    //             });
+
+    //             let new_anchor_selections = new_selections.iter().map(|e| &e.0);
+    //             let new_selection_deltas = new_selections.iter().map(|e| e.1);
+    //             let snapshot = this.buffer.read(cx).read(cx);
+    //             let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
+    //                 .zip(new_selection_deltas)
+    //                 .map(|(selection, delta)| Selection {
+    //                     id: selection.id,
+    //                     start: selection.start + delta,
+    //                     end: selection.end + delta,
+    //                     reversed: selection.reversed,
+    //                     goal: SelectionGoal::None,
+    //                 })
+    //                 .collect::<Vec<_>>();
+
+    //             let mut i = 0;
+    //             for (position, delta, selection_id, pair) in new_autoclose_regions {
+    //                 let position = position.to_offset(&snapshot) + delta;
+    //                 let start = snapshot.anchor_before(position);
+    //                 let end = snapshot.anchor_after(position);
+    //                 while let Some(existing_state) = this.autoclose_regions.get(i) {
+    //                     match existing_state.range.start.cmp(&start, &snapshot) {
+    //                         Ordering::Less => i += 1,
+    //                         Ordering::Greater => break,
+    //                         Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
+    //                             Ordering::Less => i += 1,
+    //                             Ordering::Equal => break,
+    //                             Ordering::Greater => break,
+    //                         },
+    //                     }
+    //                 }
+    //                 this.autoclose_regions.insert(
+    //                     i,
+    //                     AutocloseRegion {
+    //                         selection_id,
+    //                         range: start..end,
+    //                         pair,
+    //                     },
+    //                 );
+    //             }
+
+    //             drop(snapshot);
+    //             let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
+
+    //             if !brace_inserted && settings::get::<EditorSettings>(cx).use_on_type_format {
+    //                 if let Some(on_type_format_task) =
+    //                     this.trigger_on_type_formatting(text.to_string(), cx)
+    //                 {
+    //                     on_type_format_task.detach_and_log_err(cx);
+    //                 }
+    //             }
+
+    //             if had_active_copilot_suggestion {
+    //                 this.refresh_copilot_suggestions(true, cx);
+    //                 if !this.has_active_copilot_suggestion(cx) {
+    //                     this.trigger_completion_on_input(&text, cx);
+    //                 }
+    //             } else {
+    //                 this.trigger_completion_on_input(&text, cx);
+    //                 this.refresh_copilot_suggestions(true, cx);
+    //             }
+    //         });
+    //     }
+
+    //     pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
+    //                 let selections = this.selections.all::<usize>(cx);
+    //                 let multi_buffer = this.buffer.read(cx);
+    //                 let buffer = multi_buffer.snapshot(cx);
+    //                 selections
+    //                     .iter()
+    //                     .map(|selection| {
+    //                         let start_point = selection.start.to_point(&buffer);
+    //                         let mut indent = buffer.indent_size_for_line(start_point.row);
+    //                         indent.len = cmp::min(indent.len, start_point.column);
+    //                         let start = selection.start;
+    //                         let end = selection.end;
+    //                         let is_cursor = start == end;
+    //                         let language_scope = buffer.language_scope_at(start);
+    //                         let (comment_delimiter, insert_extra_newline) = if let Some(language) =
+    //                             &language_scope
+    //                         {
+    //                             let leading_whitespace_len = buffer
+    //                                 .reversed_chars_at(start)
+    //                                 .take_while(|c| c.is_whitespace() && *c != '\n')
+    //                                 .map(|c| c.len_utf8())
+    //                                 .sum::<usize>();
+
+    //                             let trailing_whitespace_len = buffer
+    //                                 .chars_at(end)
+    //                                 .take_while(|c| c.is_whitespace() && *c != '\n')
+    //                                 .map(|c| c.len_utf8())
+    //                                 .sum::<usize>();
+
+    //                             let insert_extra_newline =
+    //                                 language.brackets().any(|(pair, enabled)| {
+    //                                     let pair_start = pair.start.trim_end();
+    //                                     let pair_end = pair.end.trim_start();
+
+    //                                     enabled
+    //                                         && pair.newline
+    //                                         && buffer.contains_str_at(
+    //                                             end + trailing_whitespace_len,
+    //                                             pair_end,
+    //                                         )
+    //                                         && buffer.contains_str_at(
+    //                                             (start - leading_whitespace_len)
+    //                                                 .saturating_sub(pair_start.len()),
+    //                                             pair_start,
+    //                                         )
+    //                                 });
+    //                             // Comment extension on newline is allowed only for cursor selections
+    //                             let comment_delimiter = language.line_comment_prefix().filter(|_| {
+    //                                 let is_comment_extension_enabled =
+    //                                     multi_buffer.settings_at(0, cx).extend_comment_on_newline;
+    //                                 is_cursor && is_comment_extension_enabled
+    //                             });
+    //                             let comment_delimiter = if let Some(delimiter) = comment_delimiter {
+    //                                 buffer
+    //                                     .buffer_line_for_row(start_point.row)
+    //                                     .is_some_and(|(snapshot, range)| {
+    //                                         let mut index_of_first_non_whitespace = 0;
+    //                                         let line_starts_with_comment = snapshot
+    //                                             .chars_for_range(range)
+    //                                             .skip_while(|c| {
+    //                                                 let should_skip = c.is_whitespace();
+    //                                                 if should_skip {
+    //                                                     index_of_first_non_whitespace += 1;
+    //                                                 }
+    //                                                 should_skip
+    //                                             })
+    //                                             .take(delimiter.len())
+    //                                             .eq(delimiter.chars());
+    //                                         let cursor_is_placed_after_comment_marker =
+    //                                             index_of_first_non_whitespace + delimiter.len()
+    //                                                 <= start_point.column as usize;
+    //                                         line_starts_with_comment
+    //                                             && cursor_is_placed_after_comment_marker
+    //                                     })
+    //                                     .then(|| delimiter.clone())
+    //                             } else {
+    //                                 None
+    //                             };
+    //                             (comment_delimiter, insert_extra_newline)
+    //                         } else {
+    //                             (None, false)
+    //                         };
+
+    //                         let capacity_for_delimiter = comment_delimiter
+    //                             .as_deref()
+    //                             .map(str::len)
+    //                             .unwrap_or_default();
+    //                         let mut new_text =
+    //                             String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
+    //                         new_text.push_str("\n");
+    //                         new_text.extend(indent.chars());
+    //                         if let Some(delimiter) = &comment_delimiter {
+    //                             new_text.push_str(&delimiter);
+    //                         }
+    //                         if insert_extra_newline {
+    //                             new_text = new_text.repeat(2);
+    //                         }
+
+    //                         let anchor = buffer.anchor_after(end);
+    //                         let new_selection = selection.map(|_| anchor);
+    //                         (
+    //                             (start..end, new_text),
+    //                             (insert_extra_newline, new_selection),
+    //                         )
+    //                     })
+    //                     .unzip()
+    //             };
+
+    //             this.edit_with_autoindent(edits, cx);
+    //             let buffer = this.buffer.read(cx).snapshot(cx);
+    //             let new_selections = selection_fixup_info
+    //                 .into_iter()
+    //                 .map(|(extra_newline_inserted, new_selection)| {
+    //                     let mut cursor = new_selection.end.to_point(&buffer);
+    //                     if extra_newline_inserted {
+    //                         cursor.row -= 1;
+    //                         cursor.column = buffer.line_len(cursor.row);
+    //                     }
+    //                     new_selection.map(|_| cursor)
+    //                 })
+    //                 .collect();
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
+    //             this.refresh_copilot_suggestions(true, cx);
+    //         });
+    //     }
+
+    //     pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
+    //         let buffer = self.buffer.read(cx);
+    //         let snapshot = buffer.snapshot(cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut rows = Vec::new();
+    //         let mut rows_inserted = 0;
+
+    //         for selection in self.selections.all_adjusted(cx) {
+    //             let cursor = selection.head();
+    //             let row = cursor.row;
+
+    //             let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
+
+    //             let newline = "\n".to_string();
+    //             edits.push((start_of_line..start_of_line, newline));
+
+    //             rows.push(row + rows_inserted);
+    //             rows_inserted += 1;
+    //         }
+
+    //         self.transact(cx, |editor, cx| {
+    //             editor.edit(edits, cx);
+
+    //             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let mut index = 0;
+    //                 s.move_cursors_with(|map, _, _| {
+    //                     let row = rows[index];
+    //                     index += 1;
+
+    //                     let point = Point::new(row, 0);
+    //                     let boundary = map.next_line_boundary(point).1;
+    //                     let clipped = map.clip_point(boundary, Bias::Left);
+
+    //                     (clipped, SelectionGoal::None)
+    //                 });
+    //             });
+
+    //             let mut indent_edits = Vec::new();
+    //             let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
+    //             for row in rows {
+    //                 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
+    //                 for (row, indent) in indents {
+    //                     if indent.len == 0 {
+    //                         continue;
+    //                     }
+
+    //                     let text = match indent.kind {
+    //                         IndentKind::Space => " ".repeat(indent.len as usize),
+    //                         IndentKind::Tab => "\t".repeat(indent.len as usize),
+    //                     };
+    //                     let point = Point::new(row, 0);
+    //                     indent_edits.push((point..point, text));
+    //                 }
+    //             }
+    //             editor.edit(indent_edits, cx);
+    //         });
+    //     }
+
+    //     pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
+    //         let buffer = self.buffer.read(cx);
+    //         let snapshot = buffer.snapshot(cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut rows = Vec::new();
+    //         let mut rows_inserted = 0;
+
+    //         for selection in self.selections.all_adjusted(cx) {
+    //             let cursor = selection.head();
+    //             let row = cursor.row;
+
+    //             let point = Point::new(row + 1, 0);
+    //             let start_of_line = snapshot.clip_point(point, Bias::Left);
+
+    //             let newline = "\n".to_string();
+    //             edits.push((start_of_line..start_of_line, newline));
+
+    //             rows_inserted += 1;
+    //             rows.push(row + rows_inserted);
+    //         }
+
+    //         self.transact(cx, |editor, cx| {
+    //             editor.edit(edits, cx);
+
+    //             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let mut index = 0;
+    //                 s.move_cursors_with(|map, _, _| {
+    //                     let row = rows[index];
+    //                     index += 1;
+
+    //                     let point = Point::new(row, 0);
+    //                     let boundary = map.next_line_boundary(point).1;
+    //                     let clipped = map.clip_point(boundary, Bias::Left);
+
+    //                     (clipped, SelectionGoal::None)
+    //                 });
+    //             });
+
+    //             let mut indent_edits = Vec::new();
+    //             let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
+    //             for row in rows {
+    //                 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
+    //                 for (row, indent) in indents {
+    //                     if indent.len == 0 {
+    //                         continue;
+    //                     }
+
+    //                     let text = match indent.kind {
+    //                         IndentKind::Space => " ".repeat(indent.len as usize),
+    //                         IndentKind::Tab => "\t".repeat(indent.len as usize),
+    //                     };
+    //                     let point = Point::new(row, 0);
+    //                     indent_edits.push((point..point, text));
+    //                 }
+    //             }
+    //             editor.edit(indent_edits, cx);
+    //         });
+    //     }
+
+    //     pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
+    //         self.insert_with_autoindent_mode(
+    //             text,
+    //             Some(AutoindentMode::Block {
+    //                 original_indent_columns: Vec::new(),
+    //             }),
+    //             cx,
+    //         );
+    //     }
+
+    //     fn insert_with_autoindent_mode(
+    //         &mut self,
+    //         text: &str,
+    //         autoindent_mode: Option<AutoindentMode>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if self.read_only {
+    //             return;
+    //         }
+
+    //         let text: Arc<str> = text.into();
+    //         self.transact(cx, |this, cx| {
+    //             let old_selections = this.selections.all_adjusted(cx);
+    //             let selection_anchors = this.buffer.update(cx, |buffer, cx| {
+    //                 let anchors = {
+    //                     let snapshot = buffer.read(cx);
+    //                     old_selections
+    //                         .iter()
+    //                         .map(|s| {
+    //                             let anchor = snapshot.anchor_after(s.head());
+    //                             s.map(|_| anchor)
+    //                         })
+    //                         .collect::<Vec<_>>()
+    //                 };
+    //                 buffer.edit(
+    //                     old_selections
+    //                         .iter()
+    //                         .map(|s| (s.start..s.end, text.clone())),
+    //                     autoindent_mode,
+    //                     cx,
+    //                 );
+    //                 anchors
+    //             });
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select_anchors(selection_anchors);
+    //             })
+    //         });
+    //     }
+
+    //     fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
+    //         if !settings::get::<EditorSettings>(cx).show_completions_on_input {
+    //             return;
+    //         }
+
+    //         let selection = self.selections.newest_anchor();
+    //         if self
+    //             .buffer
+    //             .read(cx)
+    //             .is_completion_trigger(selection.head(), text, cx)
+    //         {
+    //             self.show_completions(&ShowCompletions, cx);
+    //         } else {
+    //             self.hide_context_menu(cx);
+    //         }
+    //     }
+
+    //     /// If any empty selections is touching the start of its innermost containing autoclose
+    //     /// region, expand it to select the brackets.
+    //     fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
+    //         let selections = self.selections.all::<usize>(cx);
+    //         let buffer = self.buffer.read(cx).read(cx);
+    //         let mut new_selections = Vec::new();
+    //         for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
+    //             if let (Some(region), true) = (region, selection.is_empty()) {
+    //                 let mut range = region.range.to_offset(&buffer);
+    //                 if selection.start == range.start {
+    //                     if range.start >= region.pair.start.len() {
+    //                         range.start -= region.pair.start.len();
+    //                         if buffer.contains_str_at(range.start, &region.pair.start) {
+    //                             if buffer.contains_str_at(range.end, &region.pair.end) {
+    //                                 range.end += region.pair.end.len();
+    //                                 selection.start = range.start;
+    //                                 selection.end = range.end;
+    //                             }
+    //                         }
+    //                     }
+    //                 }
+    //             }
+    //             new_selections.push(selection);
+    //         }
+
+    //         drop(buffer);
+    //         self.change_selections(None, cx, |selections| selections.select(new_selections));
+    //     }
+
+    //     /// Iterate the given selections, and for each one, find the smallest surrounding
+    //     /// autoclose region. This uses the ordering of the selections and the autoclose
+    //     /// regions to avoid repeated comparisons.
+    //     fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
+    //         &'a self,
+    //         selections: impl IntoIterator<Item = Selection<D>>,
+    //         buffer: &'a MultiBufferSnapshot,
+    //     ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
+    //         let mut i = 0;
+    //         let mut regions = self.autoclose_regions.as_slice();
+    //         selections.into_iter().map(move |selection| {
+    //             let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
+
+    //             let mut enclosing = None;
+    //             while let Some(pair_state) = regions.get(i) {
+    //                 if pair_state.range.end.to_offset(buffer) < range.start {
+    //                     regions = &regions[i + 1..];
+    //                     i = 0;
+    //                 } else if pair_state.range.start.to_offset(buffer) > range.end {
+    //                     break;
+    //                 } else {
+    //                     if pair_state.selection_id == selection.id {
+    //                         enclosing = Some(pair_state);
+    //                     }
+    //                     i += 1;
+    //                 }
+    //             }
+
+    //             (selection.clone(), enclosing)
+    //         })
+    //     }
+
+    //     /// Remove any autoclose regions that no longer contain their selection.
+    //     fn invalidate_autoclose_regions(
+    //         &mut self,
+    //         mut selections: &[Selection<Anchor>],
+    //         buffer: &MultiBufferSnapshot,
+    //     ) {
+    //         self.autoclose_regions.retain(|state| {
+    //             let mut i = 0;
+    //             while let Some(selection) = selections.get(i) {
+    //                 if selection.end.cmp(&state.range.start, buffer).is_lt() {
+    //                     selections = &selections[1..];
+    //                     continue;
+    //                 }
+    //                 if selection.start.cmp(&state.range.end, buffer).is_gt() {
+    //                     break;
+    //                 }
+    //                 if selection.id == state.selection_id {
+    //                     return true;
+    //                 } else {
+    //                     i += 1;
+    //                 }
+    //             }
+    //             false
+    //         });
+    //     }
+
+    //     fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
+    //         let offset = position.to_offset(buffer);
+    //         let (word_range, kind) = buffer.surrounding_word(offset);
+    //         if offset > word_range.start && kind == Some(CharKind::Word) {
+    //             Some(
+    //                 buffer
+    //                     .text_for_range(word_range.start..offset)
+    //                     .collect::<String>(),
+    //             )
+    //         } else {
+    //             None
+    //         }
+    //     }
+
+    //     pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
+    //         todo!();
+    //         // self.refresh_inlay_hints(
+    //         //     InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
+    //         //     cx,
+    //         // );
+    //     }
+
+    //     pub fn inlay_hints_enabled(&self) -> bool {
+    //         todo!();
+    //         self.inlay_hint_cache.enabled
+    //     }
+
+    //     fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
+    //         if self.project.is_none() || self.mode != EditorMode::Full {
+    //             return;
+    //         }
+
+    //         let reason_description = reason.description();
+    //         let (invalidate_cache, required_languages) = match reason {
+    //             InlayHintRefreshReason::Toggle(enabled) => {
+    //                 self.inlay_hint_cache.enabled = enabled;
+    //                 if enabled {
+    //                     (InvalidationStrategy::RefreshRequested, None)
+    //                 } else {
+    //                     self.inlay_hint_cache.clear();
+    //                     self.splice_inlay_hints(
+    //                         self.visible_inlay_hints(cx)
+    //                             .iter()
+    //                             .map(|inlay| inlay.id)
+    //                             .collect(),
+    //                         Vec::new(),
+    //                         cx,
+    //                     );
+    //                     return;
+    //                 }
+    //             }
+    //             InlayHintRefreshReason::SettingsChange(new_settings) => {
+    //                 match self.inlay_hint_cache.update_settings(
+    //                     &self.buffer,
+    //                     new_settings,
+    //                     self.visible_inlay_hints(cx),
+    //                     cx,
+    //                 ) {
+    //                     ControlFlow::Break(Some(InlaySplice {
+    //                         to_remove,
+    //                         to_insert,
+    //                     })) => {
+    //                         self.splice_inlay_hints(to_remove, to_insert, cx);
+    //                         return;
+    //                     }
+    //                     ControlFlow::Break(None) => return,
+    //                     ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
+    //                 }
+    //             }
+    //             InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
+    //                 if let Some(InlaySplice {
+    //                     to_remove,
+    //                     to_insert,
+    //                 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
+    //                 {
+    //                     self.splice_inlay_hints(to_remove, to_insert, cx);
+    //                 }
+    //                 return;
+    //             }
+    //             InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
+    //             InlayHintRefreshReason::BufferEdited(buffer_languages) => {
+    //                 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
+    //             }
+    //             InlayHintRefreshReason::RefreshRequested => {
+    //                 (InvalidationStrategy::RefreshRequested, None)
+    //             }
+    //         };
+
+    //         if let Some(InlaySplice {
+    //             to_remove,
+    //             to_insert,
+    //         }) = self.inlay_hint_cache.spawn_hint_refresh(
+    //             reason_description,
+    //             self.excerpt_visible_offsets(required_languages.as_ref(), cx),
+    //             invalidate_cache,
+    //             cx,
+    //         ) {
+    //             self.splice_inlay_hints(to_remove, to_insert, cx);
+    //         }
+    //     }
+
+    //     fn visible_inlay_hints(&self, cx: &ViewContext<'_, '_, Editor>) -> Vec<Inlay> {
+    //         self.display_map
+    //             .read(cx)
+    //             .current_inlays()
+    //             .filter(move |inlay| {
+    //                 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
+    //             })
+    //             .cloned()
+    //             .collect()
+    //     }
+
+    //     pub fn excerpt_visible_offsets(
+    //         &self,
+    //         restrict_to_languages: Option<&HashSet<Arc<Language>>>,
+    //         cx: &mut ViewContext<'_, '_, Editor>,
+    //     ) -> HashMap<ExcerptId, (Model<Buffer>, Global, Range<usize>)> {
+    //         let multi_buffer = self.buffer().read(cx);
+    //         let multi_buffer_snapshot = multi_buffer.snapshot(cx);
+    //         let multi_buffer_visible_start = self
+    //             .scroll_manager
+    //             .anchor()
+    //             .anchor
+    //             .to_point(&multi_buffer_snapshot);
+    //         let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
+    //             multi_buffer_visible_start
+    //                 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
+    //             Bias::Left,
+    //         );
+    //         let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
+    //         multi_buffer
+    //             .range_to_buffer_ranges(multi_buffer_visible_range, cx)
+    //             .into_iter()
+    //             .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
+    //             .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
+    //                 let buffer = buffer_handle.read(cx);
+    //                 let language = buffer.language()?;
+    //                 if let Some(restrict_to_languages) = restrict_to_languages {
+    //                     if !restrict_to_languages.contains(language) {
+    //                         return None;
+    //                     }
+    //                 }
+    //                 Some((
+    //                     excerpt_id,
+    //                     (
+    //                         buffer_handle,
+    //                         buffer.version().clone(),
+    //                         excerpt_visible_range,
+    //                     ),
+    //                 ))
+    //             })
+    //             .collect()
+    //     }
+
+    //     pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
+    //         TextLayoutDetails {
+    //             font_cache: cx.font_cache().clone(),
+    //             text_layout_cache: cx.text_layout_cache().clone(),
+    //             editor_style: self.style(cx),
+    //         }
+    //     }
+
+    //     fn splice_inlay_hints(
+    //         &self,
+    //         to_remove: Vec<InlayId>,
+    //         to_insert: Vec<Inlay>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.display_map.update(cx, |display_map, cx| {
+    //             display_map.splice_inlays(to_remove, to_insert, cx);
+    //         });
+    //         cx.notify();
+    //     }
+
+    //     fn trigger_on_type_formatting(
+    //         &self,
+    //         input: String,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<Task<Result<()>>> {
+    //         if input.len() != 1 {
+    //             return None;
+    //         }
+
+    //         let project = self.project.as_ref()?;
+    //         let position = self.selections.newest_anchor().head();
+    //         let (buffer, buffer_position) = self
+    //             .buffer
+    //             .read(cx)
+    //             .text_anchor_for_position(position.clone(), cx)?;
+
+    //         // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
+    //         // hence we do LSP request & edit on host side only — add formats to host's history.
+    //         let push_to_lsp_host_history = true;
+    //         // If this is not the host, append its history with new edits.
+    //         let push_to_client_history = project.read(cx).is_remote();
+
+    //         let on_type_formatting = project.update(cx, |project, cx| {
+    //             project.on_type_format(
+    //                 buffer.clone(),
+    //                 buffer_position,
+    //                 input,
+    //                 push_to_lsp_host_history,
+    //                 cx,
+    //             )
+    //         });
+    //         Some(cx.spawn(|editor, mut cx| async move {
+    //             if let Some(transaction) = on_type_formatting.await? {
+    //                 if push_to_client_history {
+    //                     buffer.update(&mut cx, |buffer, _| {
+    //                         buffer.push_transaction(transaction, Instant::now());
+    //                     });
+    //                 }
+    //                 editor.update(&mut cx, |editor, cx| {
+    //                     editor.refresh_document_highlights(cx);
+    //                 })?;
+    //             }
+    //             Ok(())
+    //         }))
+    //     }
+
+    //     fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
+    //         if self.pending_rename.is_some() {
+    //             return;
+    //         }
+
+    //         let project = if let Some(project) = self.project.clone() {
+    //             project
+    //         } else {
+    //             return;
+    //         };
+
+    //         let position = self.selections.newest_anchor().head();
+    //         let (buffer, buffer_position) = if let Some(output) = self
+    //             .buffer
+    //             .read(cx)
+    //             .text_anchor_for_position(position.clone(), cx)
+    //         {
+    //             output
+    //         } else {
+    //             return;
+    //         };
+
+    //         let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
+    //         let completions = project.update(cx, |project, cx| {
+    //             project.completions(&buffer, buffer_position, cx)
+    //         });
+
+    //         let id = post_inc(&mut self.next_completion_id);
+    //         let task = cx.spawn(|this, mut cx| {
+    //             async move {
+    //                 let menu = if let Some(completions) = completions.await.log_err() {
+    //                     let mut menu = CompletionsMenu {
+    //                         id,
+    //                         initial_position: position,
+    //                         match_candidates: completions
+    //                             .iter()
+    //                             .enumerate()
+    //                             .map(|(id, completion)| {
+    //                                 StringMatchCandidate::new(
+    //                                     id,
+    //                                     completion.label.text[completion.label.filter_range.clone()]
+    //                                         .into(),
+    //                                 )
+    //                             })
+    //                             .collect(),
+    //                         buffer,
+    //                         completions: Arc::new(RwLock::new(completions.into())),
+    //                         matches: Vec::new().into(),
+    //                         selected_item: 0,
+    //                         list: Default::default(),
+    //                     };
+    //                     menu.filter(query.as_deref(), cx.background()).await;
+    //                     if menu.matches.is_empty() {
+    //                         None
+    //                     } else {
+    //                         _ = this.update(&mut cx, |editor, cx| {
+    //                             menu.pre_resolve_completion_documentation(editor.project.clone(), cx);
+    //                         });
+    //                         Some(menu)
+    //                     }
+    //                 } else {
+    //                     None
+    //                 };
+
+    //                 this.update(&mut cx, |this, cx| {
+    //                     this.completion_tasks.retain(|(task_id, _)| *task_id > id);
+
+    //                     let mut context_menu = this.context_menu.write();
+    //                     match context_menu.as_ref() {
+    //                         None => {}
+
+    //                         Some(ContextMenu::Completions(prev_menu)) => {
+    //                             if prev_menu.id > id {
+    //                                 return;
+    //                             }
+    //                         }
+
+    //                         _ => return,
+    //                     }
+
+    //                     if this.focused && menu.is_some() {
+    //                         let menu = menu.unwrap();
+    //                         *context_menu = Some(ContextMenu::Completions(menu));
+    //                         drop(context_menu);
+    //                         this.discard_copilot_suggestion(cx);
+    //                         cx.notify();
+    //                     } else if this.completion_tasks.is_empty() {
+    //                         // If there are no more completion tasks and the last menu was
+    //                         // empty, we should hide it. If it was already hidden, we should
+    //                         // also show the copilot suggestion when available.
+    //                         drop(context_menu);
+    //                         if this.hide_context_menu(cx).is_none() {
+    //                             this.update_visible_copilot_suggestion(cx);
+    //                         }
+    //                     }
+    //                 })?;
+
+    //                 Ok::<_, anyhow::Error>(())
+    //             }
+    //             .log_err()
+    //         });
+    //         self.completion_tasks.push((id, task));
+    //     }
+
+    //     pub fn confirm_completion(
+    //         &mut self,
+    //         action: &ConfirmCompletion,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<Task<Result<()>>> {
+    //         use language::ToOffset as _;
+
+    //         let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
+    //             menu
+    //         } else {
+    //             return None;
+    //         };
+
+    //         let mat = completions_menu
+    //             .matches
+    //             .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
+    //         let buffer_handle = completions_menu.buffer;
+    //         let completions = completions_menu.completions.read();
+    //         let completion = completions.get(mat.candidate_id)?;
+
+    //         let snippet;
+    //         let text;
+    //         if completion.is_snippet() {
+    //             snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
+    //             text = snippet.as_ref().unwrap().text.clone();
+    //         } else {
+    //             snippet = None;
+    //             text = completion.new_text.clone();
+    //         };
+    //         let selections = self.selections.all::<usize>(cx);
+    //         let buffer = buffer_handle.read(cx);
+    //         let old_range = completion.old_range.to_offset(buffer);
+    //         let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
+
+    //         let newest_selection = self.selections.newest_anchor();
+    //         if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
+    //             return None;
+    //         }
+
+    //         let lookbehind = newest_selection
+    //             .start
+    //             .text_anchor
+    //             .to_offset(buffer)
+    //             .saturating_sub(old_range.start);
+    //         let lookahead = old_range
+    //             .end
+    //             .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
+    //         let mut common_prefix_len = old_text
+    //             .bytes()
+    //             .zip(text.bytes())
+    //             .take_while(|(a, b)| a == b)
+    //             .count();
+
+    //         let snapshot = self.buffer.read(cx).snapshot(cx);
+    //         let mut range_to_replace: Option<Range<isize>> = None;
+    //         let mut ranges = Vec::new();
+    //         for selection in &selections {
+    //             if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
+    //                 let start = selection.start.saturating_sub(lookbehind);
+    //                 let end = selection.end + lookahead;
+    //                 if selection.id == newest_selection.id {
+    //                     range_to_replace = Some(
+    //                         ((start + common_prefix_len) as isize - selection.start as isize)
+    //                             ..(end as isize - selection.start as isize),
+    //                     );
+    //                 }
+    //                 ranges.push(start + common_prefix_len..end);
+    //             } else {
+    //                 common_prefix_len = 0;
+    //                 ranges.clear();
+    //                 ranges.extend(selections.iter().map(|s| {
+    //                     if s.id == newest_selection.id {
+    //                         range_to_replace = Some(
+    //                             old_range.start.to_offset_utf16(&snapshot).0 as isize
+    //                                 - selection.start as isize
+    //                                 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
+    //                                     - selection.start as isize,
+    //                         );
+    //                         old_range.clone()
+    //                     } else {
+    //                         s.start..s.end
+    //                     }
+    //                 }));
+    //                 break;
+    //             }
+    //         }
+    //         let text = &text[common_prefix_len..];
+
+    //         cx.emit(Event::InputHandled {
+    //             utf16_range_to_replace: range_to_replace,
+    //             text: text.into(),
+    //         });
+
+    //         self.transact(cx, |this, cx| {
+    //             if let Some(mut snippet) = snippet {
+    //                 snippet.text = text.to_string();
+    //                 for tabstop in snippet.tabstops.iter_mut().flatten() {
+    //                     tabstop.start -= common_prefix_len as isize;
+    //                     tabstop.end -= common_prefix_len as isize;
+    //                 }
+
+    //                 this.insert_snippet(&ranges, snippet, cx).log_err();
+    //             } else {
+    //                 this.buffer.update(cx, |buffer, cx| {
+    //                     buffer.edit(
+    //                         ranges.iter().map(|range| (range.clone(), text)),
+    //                         this.autoindent_mode.clone(),
+    //                         cx,
+    //                     );
+    //                 });
+    //             }
+
+    //             this.refresh_copilot_suggestions(true, cx);
+    //         });
+
+    //         let project = self.project.clone()?;
+    //         let apply_edits = project.update(cx, |project, cx| {
+    //             project.apply_additional_edits_for_completion(
+    //                 buffer_handle,
+    //                 completion.clone(),
+    //                 true,
+    //                 cx,
+    //             )
+    //         });
+    //         Some(cx.foreground().spawn(async move {
+    //             apply_edits.await?;
+    //             Ok(())
+    //         }))
+    //     }
+
+    //     pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
+    //         let mut context_menu = self.context_menu.write();
+    //         if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
+    //             *context_menu = None;
+    //             cx.notify();
+    //             return;
+    //         }
+    //         drop(context_menu);
+
+    //         let deployed_from_indicator = action.deployed_from_indicator;
+    //         let mut task = self.code_actions_task.take();
+    //         cx.spawn(|this, mut cx| async move {
+    //             while let Some(prev_task) = task {
+    //                 prev_task.await;
+    //                 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
+    //             }
+
+    //             this.update(&mut cx, |this, cx| {
+    //                 if this.focused {
+    //                     if let Some((buffer, actions)) = this.available_code_actions.clone() {
+    //                         this.completion_tasks.clear();
+    //                         this.discard_copilot_suggestion(cx);
+    //                         *this.context_menu.write() =
+    //                             Some(ContextMenu::CodeActions(CodeActionsMenu {
+    //                                 buffer,
+    //                                 actions,
+    //                                 selected_item: Default::default(),
+    //                                 list: Default::default(),
+    //                                 deployed_from_indicator,
+    //                             }));
+    //                     }
+    //                 }
+    //             })?;
+
+    //             Ok::<_, anyhow::Error>(())
+    //         })
+    //         .detach_and_log_err(cx);
+    //     }
+
+    //     pub fn confirm_code_action(
+    //         workspace: &mut Workspace,
+    //         action: &ConfirmCodeAction,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) -> Option<Task<Result<()>>> {
+    //         let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
+    //         let actions_menu = if let ContextMenu::CodeActions(menu) =
+    //             editor.update(cx, |editor, cx| editor.hide_context_menu(cx))?
+    //         {
+    //             menu
+    //         } else {
+    //             return None;
+    //         };
+    //         let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
+    //         let action = actions_menu.actions.get(action_ix)?.clone();
+    //         let title = action.lsp_action.title.clone();
+    //         let buffer = actions_menu.buffer;
+
+    //         let apply_code_actions = workspace.project().clone().update(cx, |project, cx| {
+    //             project.apply_code_action(buffer, action, true, cx)
+    //         });
+    //         let editor = editor.downgrade();
+    //         Some(cx.spawn(|workspace, cx| async move {
+    //             let project_transaction = apply_code_actions.await?;
+    //             Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
+    //         }))
+    //     }
+
+    //     async fn open_project_transaction(
+    //         this: &WeakViewHandle<Editor
+    //         workspace: WeakViewHandle<Workspace
+    //         transaction: ProjectTransaction,
+    //         title: String,
+    //         mut cx: AsyncAppContext,
+    //     ) -> Result<()> {
+    //         let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx))?;
+
+    //         let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
+    //         entries.sort_unstable_by_key(|(buffer, _)| {
+    //             buffer.read_with(&cx, |buffer, _| buffer.file().map(|f| f.path().clone()))
+    //         });
+
+    //         // If the project transaction's edits are all contained within this editor, then
+    //         // avoid opening a new editor to display them.
+
+    //         if let Some((buffer, transaction)) = entries.first() {
+    //             if entries.len() == 1 {
+    //                 let excerpt = this.read_with(&cx, |editor, cx| {
+    //                     editor
+    //                         .buffer()
+    //                         .read(cx)
+    //                         .excerpt_containing(editor.selections.newest_anchor().head(), cx)
+    //                 })?;
+    //                 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
+    //                     if excerpted_buffer == *buffer {
+    //                         let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
+    //                             let excerpt_range = excerpt_range.to_offset(buffer);
+    //                             buffer
+    //                                 .edited_ranges_for_transaction::<usize>(transaction)
+    //                                 .all(|range| {
+    //                                     excerpt_range.start <= range.start
+    //                                         && excerpt_range.end >= range.end
+    //                                 })
+    //                         });
+
+    //                         if all_edits_within_excerpt {
+    //                             return Ok(());
+    //                         }
+    //                     }
+    //                 }
+    //             }
+    //         } else {
+    //             return Ok(());
+    //         }
+
+    //         let mut ranges_to_highlight = Vec::new();
+    //         let excerpt_buffer = cx.add_model(|cx| {
+    //             let mut multibuffer = MultiBuffer::new(replica_id).with_title(title);
+    //             for (buffer_handle, transaction) in &entries {
+    //                 let buffer = buffer_handle.read(cx);
+    //                 ranges_to_highlight.extend(
+    //                     multibuffer.push_excerpts_with_context_lines(
+    //                         buffer_handle.clone(),
+    //                         buffer
+    //                             .edited_ranges_for_transaction::<usize>(transaction)
+    //                             .collect(),
+    //                         1,
+    //                         cx,
+    //                     ),
+    //                 );
+    //             }
+    //             multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
+    //             multibuffer
+    //         });
+
+    //         workspace.update(&mut cx, |workspace, cx| {
+    //             let project = workspace.project().clone();
+    //             let editor =
+    //                 cx.add_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
+    //             workspace.add_item(Box::new(editor.clone()), cx);
+    //             editor.update(cx, |editor, cx| {
+    //                 editor.highlight_background::<Self>(
+    //                     ranges_to_highlight,
+    //                     |theme| theme.editor.highlighted_line_background,
+    //                     cx,
+    //                 );
+    //             });
+    //         })?;
+
+    //         Ok(())
+    //     }
+
+    //     fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
+    //         let project = self.project.clone()?;
+    //         let buffer = self.buffer.read(cx);
+    //         let newest_selection = self.selections.newest_anchor().clone();
+    //         let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
+    //         let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
+    //         if start_buffer != end_buffer {
+    //             return None;
+    //         }
+
+    //         self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
+    //             cx.background().timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT).await;
+
+    //             let actions = project
+    //                 .update(&mut cx, |project, cx| {
+    //                     project.code_actions(&start_buffer, start..end, cx)
+    //                 })
+    //                 .await;
+
+    //             this.update(&mut cx, |this, cx| {
+    //                 this.available_code_actions = actions.log_err().and_then(|actions| {
+    //                     if actions.is_empty() {
+    //                         None
+    //                     } else {
+    //                         Some((start_buffer, actions.into()))
+    //                     }
+    //                 });
+    //                 cx.notify();
+    //             })
+    //             .log_err();
+    //         }));
+    //         None
+    //     }
+
+    //     fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
+    //         if self.pending_rename.is_some() {
+    //             return None;
+    //         }
+
+    //         let project = self.project.clone()?;
+    //         let buffer = self.buffer.read(cx);
+    //         let newest_selection = self.selections.newest_anchor().clone();
+    //         let cursor_position = newest_selection.head();
+    //         let (cursor_buffer, cursor_buffer_position) =
+    //             buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
+    //         let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
+    //         if cursor_buffer != tail_buffer {
+    //             return None;
+    //         }
+
+    //         self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
+    //             cx.background()
+    //                 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
+    //                 .await;
+
+    //             let highlights = project
+    //                 .update(&mut cx, |project, cx| {
+    //                     project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
+    //                 })
+    //                 .await
+    //                 .log_err();
+
+    //             if let Some(highlights) = highlights {
+    //                 this.update(&mut cx, |this, cx| {
+    //                     if this.pending_rename.is_some() {
+    //                         return;
+    //                     }
+
+    //                     let buffer_id = cursor_position.buffer_id;
+    //                     let buffer = this.buffer.read(cx);
+    //                     if !buffer
+    //                         .text_anchor_for_position(cursor_position, cx)
+    //                         .map_or(false, |(buffer, _)| buffer == cursor_buffer)
+    //                     {
+    //                         return;
+    //                     }
+
+    //                     let cursor_buffer_snapshot = cursor_buffer.read(cx);
+    //                     let mut write_ranges = Vec::new();
+    //                     let mut read_ranges = Vec::new();
+    //                     for highlight in highlights {
+    //                         for (excerpt_id, excerpt_range) in
+    //                             buffer.excerpts_for_buffer(&cursor_buffer, cx)
+    //                         {
+    //                             let start = highlight
+    //                                 .range
+    //                                 .start
+    //                                 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
+    //                             let end = highlight
+    //                                 .range
+    //                                 .end
+    //                                 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
+    //                             if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
+    //                                 continue;
+    //                             }
+
+    //                             let range = Anchor {
+    //                                 buffer_id,
+    //                                 excerpt_id: excerpt_id.clone(),
+    //                                 text_anchor: start,
+    //                             }..Anchor {
+    //                                 buffer_id,
+    //                                 excerpt_id,
+    //                                 text_anchor: end,
+    //                             };
+    //                             if highlight.kind == lsp::DocumentHighlightKind::WRITE {
+    //                                 write_ranges.push(range);
+    //                             } else {
+    //                                 read_ranges.push(range);
+    //                             }
+    //                         }
+    //                     }
+
+    //                     this.highlight_background::<DocumentHighlightRead>(
+    //                         read_ranges,
+    //                         |theme| theme.editor.document_highlight_read_background,
+    //                         cx,
+    //                     );
+    //                     this.highlight_background::<DocumentHighlightWrite>(
+    //                         write_ranges,
+    //                         |theme| theme.editor.document_highlight_write_background,
+    //                         cx,
+    //                     );
+    //                     cx.notify();
+    //                 })
+    //                 .log_err();
+    //             }
+    //         }));
+    //         None
+    //     }
+
+    //     fn refresh_copilot_suggestions(
+    //         &mut self,
+    //         debounce: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<()> {
+    //         let copilot = Copilot::global(cx)?;
+    //         if self.mode != EditorMode::Full || !copilot.read(cx).status().is_authorized() {
+    //             self.clear_copilot_suggestions(cx);
+    //             return None;
+    //         }
+    //         self.update_visible_copilot_suggestion(cx);
+
+    //         let snapshot = self.buffer.read(cx).snapshot(cx);
+    //         let cursor = self.selections.newest_anchor().head();
+    //         if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
+    //             self.clear_copilot_suggestions(cx);
+    //             return None;
+    //         }
+
+    //         let (buffer, buffer_position) =
+    //             self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
+    //         self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
+    //             if debounce {
+    //                 cx.background().timer(COPILOT_DEBOUNCE_TIMEOUT).await;
+    //             }
+
+    //             let completions = copilot
+    //                 .update(&mut cx, |copilot, cx| {
+    //                     copilot.completions(&buffer, buffer_position, cx)
+    //                 })
+    //                 .await
+    //                 .log_err()
+    //                 .into_iter()
+    //                 .flatten()
+    //                 .collect_vec();
+
+    //             this.update(&mut cx, |this, cx| {
+    //                 if !completions.is_empty() {
+    //                     this.copilot_state.cycled = false;
+    //                     this.copilot_state.pending_cycling_refresh = Task::ready(None);
+    //                     this.copilot_state.completions.clear();
+    //                     this.copilot_state.active_completion_index = 0;
+    //                     this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
+    //                     for completion in completions {
+    //                         this.copilot_state.push_completion(completion);
+    //                     }
+    //                     this.update_visible_copilot_suggestion(cx);
+    //                 }
+    //             })
+    //             .log_err()?;
+    //             Some(())
+    //         });
+
+    //         Some(())
+    //     }
+
+    //     fn cycle_copilot_suggestions(
+    //         &mut self,
+    //         direction: Direction,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<()> {
+    //         let copilot = Copilot::global(cx)?;
+    //         if self.mode != EditorMode::Full || !copilot.read(cx).status().is_authorized() {
+    //             return None;
+    //         }
+
+    //         if self.copilot_state.cycled {
+    //             self.copilot_state.cycle_completions(direction);
+    //             self.update_visible_copilot_suggestion(cx);
+    //         } else {
+    //             let cursor = self.selections.newest_anchor().head();
+    //             let (buffer, buffer_position) =
+    //                 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
+    //             self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
+    //                 let completions = copilot
+    //                     .update(&mut cx, |copilot, cx| {
+    //                         copilot.completions_cycling(&buffer, buffer_position, cx)
+    //                     })
+    //                     .await;
+
+    //                 this.update(&mut cx, |this, cx| {
+    //                     this.copilot_state.cycled = true;
+    //                     for completion in completions.log_err().into_iter().flatten() {
+    //                         this.copilot_state.push_completion(completion);
+    //                     }
+    //                     this.copilot_state.cycle_completions(direction);
+    //                     this.update_visible_copilot_suggestion(cx);
+    //                 })
+    //                 .log_err()?;
+
+    //                 Some(())
+    //             });
+    //         }
+
+    //         Some(())
+    //     }
+
+    //     fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
+    //         if !self.has_active_copilot_suggestion(cx) {
+    //             self.refresh_copilot_suggestions(false, cx);
+    //             return;
+    //         }
+
+    //         self.update_visible_copilot_suggestion(cx);
+    //     }
+
+    //     fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
+    //         if self.has_active_copilot_suggestion(cx) {
+    //             self.cycle_copilot_suggestions(Direction::Next, cx);
+    //         } else {
+    //             let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
+    //             if is_copilot_disabled {
+    //                 cx.propagate_action();
+    //             }
+    //         }
+    //     }
+
+    //     fn previous_copilot_suggestion(
+    //         &mut self,
+    //         _: &copilot::PreviousSuggestion,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if self.has_active_copilot_suggestion(cx) {
+    //             self.cycle_copilot_suggestions(Direction::Prev, cx);
+    //         } else {
+    //             let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
+    //             if is_copilot_disabled {
+    //                 cx.propagate_action();
+    //             }
+    //         }
+    //     }
+
+    //     fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
+    //         if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
+    //             if let Some((copilot, completion)) =
+    //                 Copilot::global(cx).zip(self.copilot_state.active_completion())
+    //             {
+    //                 copilot
+    //                     .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
+    //                     .detach_and_log_err(cx);
+
+    //                 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
+    //             }
+    //             cx.emit(Event::InputHandled {
+    //                 utf16_range_to_replace: None,
+    //                 text: suggestion.text.to_string().into(),
+    //             });
+    //             self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
+    //             cx.notify();
+    //             true
+    //         } else {
+    //             false
+    //         }
+    //     }
+
+    //     fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
+    //         if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
+    //             if let Some(copilot) = Copilot::global(cx) {
+    //                 copilot
+    //                     .update(cx, |copilot, cx| {
+    //                         copilot.discard_completions(&self.copilot_state.completions, cx)
+    //                     })
+    //                     .detach_and_log_err(cx);
+
+    //                 self.report_copilot_event(None, false, cx)
+    //             }
+
+    //             self.display_map.update(cx, |map, cx| {
+    //                 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
+    //             });
+    //             cx.notify();
+    //             true
+    //         } else {
+    //             false
+    //         }
+    //     }
+
+    //     fn is_copilot_enabled_at(
+    //         &self,
+    //         location: Anchor,
+    //         snapshot: &MultiBufferSnapshot,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> bool {
+    //         let file = snapshot.file_at(location);
+    //         let language = snapshot.language_at(location);
+    //         let settings = all_language_settings(file, cx);
+    //         settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
+    //     }
+
+    //     fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
+    //         if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
+    //             let buffer = self.buffer.read(cx).read(cx);
+    //             suggestion.position.is_valid(&buffer)
+    //         } else {
+    //             false
+    //         }
+    //     }
+
+    //     fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
+    //         let suggestion = self.copilot_state.suggestion.take()?;
+    //         self.display_map.update(cx, |map, cx| {
+    //             map.splice_inlays(vec![suggestion.id], Default::default(), cx);
+    //         });
+    //         let buffer = self.buffer.read(cx).read(cx);
+
+    //         if suggestion.position.is_valid(&buffer) {
+    //             Some(suggestion)
+    //         } else {
+    //             None
+    //         }
+    //     }
+
+    //     fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
+    //         let snapshot = self.buffer.read(cx).snapshot(cx);
+    //         let selection = self.selections.newest_anchor();
+    //         let cursor = selection.head();
+
+    //         if self.context_menu.read().is_some()
+    //             || !self.completion_tasks.is_empty()
+    //             || selection.start != selection.end
+    //         {
+    //             self.discard_copilot_suggestion(cx);
+    //         } else if let Some(text) = self
+    //             .copilot_state
+    //             .text_for_active_completion(cursor, &snapshot)
+    //         {
+    //             let text = Rope::from(text);
+    //             let mut to_remove = Vec::new();
+    //             if let Some(suggestion) = self.copilot_state.suggestion.take() {
+    //                 to_remove.push(suggestion.id);
+    //             }
+
+    //             let suggestion_inlay =
+    //                 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
+    //             self.copilot_state.suggestion = Some(suggestion_inlay.clone());
+    //             self.display_map.update(cx, move |map, cx| {
+    //                 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
+    //             });
+    //             cx.notify();
+    //         } else {
+    //             self.discard_copilot_suggestion(cx);
+    //         }
+    //     }
+
+    //     fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.copilot_state = Default::default();
+    //         self.discard_copilot_suggestion(cx);
+    //     }
+
+    //     pub fn render_code_actions_indicator(
+    //         &self,
+    //         style: &EditorStyle,
+    //         is_active: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<AnyElement<Self>> {
+    //         if self.available_code_actions.is_some() {
+    //             enum CodeActions {}
+    //             Some(
+    //                 MouseEventHandler::new::<CodeActions, _>(0, cx, |state, _| {
+    //                     Svg::new("icons/bolt.svg").with_color(
+    //                         style
+    //                             .code_actions
+    //                             .indicator
+    //                             .in_state(is_active)
+    //                             .style_for(state)
+    //                             .color,
+    //                     )
+    //                 })
+    //                 .with_cursor_style(CursorStyle::PointingHand)
+    //                 .with_padding(Padding::uniform(3.))
+    //                 .on_down(MouseButton::Left, |_, this, cx| {
+    //                     this.toggle_code_actions(
+    //                         &ToggleCodeActions {
+    //                             deployed_from_indicator: true,
+    //                         },
+    //                         cx,
+    //                     );
+    //                 })
+    //                 .into_any(),
+    //             )
+    //         } else {
+    //             None
+    //         }
+    //     }
+
+    //     pub fn render_fold_indicators(
+    //         &self,
+    //         fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
+    //         style: &EditorStyle,
+    //         gutter_hovered: bool,
+    //         line_height: f32,
+    //         gutter_margin: f32,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Vec<Option<AnyElement<Self>>> {
+    //         enum FoldIndicators {}
+
+    //         let style = style.folds.clone();
+
+    //         fold_data
+    //             .iter()
+    //             .enumerate()
+    //             .map(|(ix, fold_data)| {
+    //                 fold_data
+    //                     .map(|(fold_status, buffer_row, active)| {
+    //                         (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
+    //                             MouseEventHandler::new::<FoldIndicators, _>(
+    //                                 ix as usize,
+    //                                 cx,
+    //                                 |mouse_state, _| {
+    //                                     Svg::new(match fold_status {
+    //                                         FoldStatus::Folded => style.folded_icon.clone(),
+    //                                         FoldStatus::Foldable => style.foldable_icon.clone(),
+    //                                     })
+    //                                     .with_color(
+    //                                         style
+    //                                             .indicator
+    //                                             .in_state(fold_status == FoldStatus::Folded)
+    //                                             .style_for(mouse_state)
+    //                                             .color,
+    //                                     )
+    //                                     .constrained()
+    //                                     .with_width(gutter_margin * style.icon_margin_scale)
+    //                                     .aligned()
+    //                                     .constrained()
+    //                                     .with_height(line_height)
+    //                                     .with_width(gutter_margin)
+    //                                     .aligned()
+    //                                 },
+    //                             )
+    //                             .with_cursor_style(CursorStyle::PointingHand)
+    //                             .with_padding(Padding::uniform(3.))
+    //                             .on_click(MouseButton::Left, {
+    //                                 move |_, editor, cx| match fold_status {
+    //                                     FoldStatus::Folded => {
+    //                                         editor.unfold_at(&UnfoldAt { buffer_row }, cx);
+    //                                     }
+    //                                     FoldStatus::Foldable => {
+    //                                         editor.fold_at(&FoldAt { buffer_row }, cx);
+    //                                     }
+    //                                 }
+    //                             })
+    //                             .into_any()
+    //                         })
+    //                     })
+    //                     .flatten()
+    //             })
+    //             .collect()
+    //     }
+
+    //     pub fn context_menu_visible(&self) -> bool {
+    //         self.context_menu
+    //             .read()
+    //             .as_ref()
+    //             .map_or(false, |menu| menu.visible())
+    //     }
+
+    //     pub fn render_context_menu(
+    //         &self,
+    //         cursor_position: DisplayPoint,
+    //         style: EditorStyle,
+    //         cx: &mut ViewContext<Editor>,
+    //     ) -> Option<(DisplayPoint, AnyElement<Editor>)> {
+    //         self.context_menu.read().as_ref().map(|menu| {
+    //             menu.render(
+    //                 cursor_position,
+    //                 style,
+    //                 self.workspace.as_ref().map(|(w, _)| w.clone()),
+    //                 cx,
+    //             )
+    //         })
+    //     }
+
+    //     fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
+    //         cx.notify();
+    //         self.completion_tasks.clear();
+    //         let context_menu = self.context_menu.write().take();
+    //         if context_menu.is_some() {
+    //             self.update_visible_copilot_suggestion(cx);
+    //         }
+    //         context_menu
+    //     }
+
+    //     pub fn insert_snippet(
+    //         &mut self,
+    //         insertion_ranges: &[Range<usize>],
+    //         snippet: Snippet,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Result<()> {
+    //         let tabstops = self.buffer.update(cx, |buffer, cx| {
+    //             let snippet_text: Arc<str> = snippet.text.clone().into();
+    //             buffer.edit(
+    //                 insertion_ranges
+    //                     .iter()
+    //                     .cloned()
+    //                     .map(|range| (range, snippet_text.clone())),
+    //                 Some(AutoindentMode::EachLine),
+    //                 cx,
+    //             );
+
+    //             let snapshot = &*buffer.read(cx);
+    //             let snippet = &snippet;
+    //             snippet
+    //                 .tabstops
+    //                 .iter()
+    //                 .map(|tabstop| {
+    //                     let mut tabstop_ranges = tabstop
+    //                         .iter()
+    //                         .flat_map(|tabstop_range| {
+    //                             let mut delta = 0_isize;
+    //                             insertion_ranges.iter().map(move |insertion_range| {
+    //                                 let insertion_start = insertion_range.start as isize + delta;
+    //                                 delta +=
+    //                                     snippet.text.len() as isize - insertion_range.len() as isize;
+
+    //                                 let start = snapshot.anchor_before(
+    //                                     (insertion_start + tabstop_range.start) as usize,
+    //                                 );
+    //                                 let end = snapshot
+    //                                     .anchor_after((insertion_start + tabstop_range.end) as usize);
+    //                                 start..end
+    //                             })
+    //                         })
+    //                         .collect::<Vec<_>>();
+    //                     tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
+    //                     tabstop_ranges
+    //                 })
+    //                 .collect::<Vec<_>>()
+    //         });
+
+    //         if let Some(tabstop) = tabstops.first() {
+    //             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select_ranges(tabstop.iter().cloned());
+    //             });
+    //             self.snippet_stack.push(SnippetState {
+    //                 active_index: 0,
+    //                 ranges: tabstops,
+    //             });
+    //         }
+
+    //         Ok(())
+    //     }
+
+    //     pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
+    //         self.move_to_snippet_tabstop(Bias::Right, cx)
+    //     }
+
+    //     pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
+    //         self.move_to_snippet_tabstop(Bias::Left, cx)
+    //     }
+
+    //     pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
+    //         if let Some(mut snippet) = self.snippet_stack.pop() {
+    //             match bias {
+    //                 Bias::Left => {
+    //                     if snippet.active_index > 0 {
+    //                         snippet.active_index -= 1;
+    //                     } else {
+    //                         self.snippet_stack.push(snippet);
+    //                         return false;
+    //                     }
+    //                 }
+    //                 Bias::Right => {
+    //                     if snippet.active_index + 1 < snippet.ranges.len() {
+    //                         snippet.active_index += 1;
+    //                     } else {
+    //                         self.snippet_stack.push(snippet);
+    //                         return false;
+    //                     }
+    //                 }
+    //             }
+    //             if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
+    //                 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                     s.select_anchor_ranges(current_ranges.iter().cloned())
+    //                 });
+    //                 // If snippet state is not at the last tabstop, push it back on the stack
+    //                 if snippet.active_index + 1 < snippet.ranges.len() {
+    //                     self.snippet_stack.push(snippet);
+    //                 }
+    //                 return true;
+    //             }
+    //         }
+
+    //         false
+    //     }
+
+    //     pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_all(&SelectAll, cx);
+    //             this.insert("", cx);
+    //         });
+    //     }
+
+    //     pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_autoclose_pair(cx);
+    //             let mut selections = this.selections.all::<Point>(cx);
+    //             if !this.selections.line_mode {
+    //                 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //                 for selection in &mut selections {
+    //                     if selection.is_empty() {
+    //                         let old_head = selection.head();
+    //                         let mut new_head =
+    //                             movement::left(&display_map, old_head.to_display_point(&display_map))
+    //                                 .to_point(&display_map);
+    //                         if let Some((buffer, line_buffer_range)) = display_map
+    //                             .buffer_snapshot
+    //                             .buffer_line_for_row(old_head.row)
+    //                         {
+    //                             let indent_size =
+    //                                 buffer.indent_size_for_line(line_buffer_range.start.row);
+    //                             let indent_len = match indent_size.kind {
+    //                                 IndentKind::Space => {
+    //                                     buffer.settings_at(line_buffer_range.start, cx).tab_size
+    //                                 }
+    //                                 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
+    //                             };
+    //                             if old_head.column <= indent_size.len && old_head.column > 0 {
+    //                                 let indent_len = indent_len.get();
+    //                                 new_head = cmp::min(
+    //                                     new_head,
+    //                                     Point::new(
+    //                                         old_head.row,
+    //                                         ((old_head.column - 1) / indent_len) * indent_len,
+    //                                     ),
+    //                                 );
+    //                             }
+    //                         }
+
+    //                         selection.set_head(new_head, SelectionGoal::None);
+    //                     }
+    //                 }
+    //             }
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+    //             this.insert("", cx);
+    //             this.refresh_copilot_suggestions(true, cx);
+    //         });
+    //     }
+
+    //     pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let line_mode = s.line_mode;
+    //                 s.move_with(|map, selection| {
+    //                     if selection.is_empty() && !line_mode {
+    //                         let cursor = movement::right(map, selection.head());
+    //                         selection.end = cursor;
+    //                         selection.reversed = true;
+    //                         selection.goal = SelectionGoal::None;
+    //                     }
+    //                 })
+    //             });
+    //             this.insert("", cx);
+    //             this.refresh_copilot_suggestions(true, cx);
+    //         });
+    //     }
+
+    //     pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
+    //         if self.move_to_prev_snippet_tabstop(cx) {
+    //             return;
+    //         }
+
+    //         self.outdent(&Outdent, cx);
+    //     }
+
+    //     pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
+    //         if self.move_to_next_snippet_tabstop(cx) {
+    //             return;
+    //         }
+
+    //         let mut selections = self.selections.all_adjusted(cx);
+    //         let buffer = self.buffer.read(cx);
+    //         let snapshot = buffer.snapshot(cx);
+    //         let rows_iter = selections.iter().map(|s| s.head().row);
+    //         let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut prev_edited_row = 0;
+    //         let mut row_delta = 0;
+    //         for selection in &mut selections {
+    //             if selection.start.row != prev_edited_row {
+    //                 row_delta = 0;
+    //             }
+    //             prev_edited_row = selection.end.row;
+
+    //             // If the selection is non-empty, then increase the indentation of the selected lines.
+    //             if !selection.is_empty() {
+    //                 row_delta =
+    //                     Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
+    //                 continue;
+    //             }
+
+    //             // If the selection is empty and the cursor is in the leading whitespace before the
+    //             // suggested indentation, then auto-indent the line.
+    //             let cursor = selection.head();
+    //             let current_indent = snapshot.indent_size_for_line(cursor.row);
+    //             if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
+    //                 if cursor.column < suggested_indent.len
+    //                     && cursor.column <= current_indent.len
+    //                     && current_indent.len <= suggested_indent.len
+    //                 {
+    //                     selection.start = Point::new(cursor.row, suggested_indent.len);
+    //                     selection.end = selection.start;
+    //                     if row_delta == 0 {
+    //                         edits.extend(Buffer::edit_for_indent_size_adjustment(
+    //                             cursor.row,
+    //                             current_indent,
+    //                             suggested_indent,
+    //                         ));
+    //                         row_delta = suggested_indent.len - current_indent.len;
+    //                     }
+    //                     continue;
+    //                 }
+    //             }
+
+    //             // Accept copilot suggestion if there is only one selection and the cursor is not
+    //             // in the leading whitespace.
+    //             if self.selections.count() == 1
+    //                 && cursor.column >= current_indent.len
+    //                 && self.has_active_copilot_suggestion(cx)
+    //             {
+    //                 self.accept_copilot_suggestion(cx);
+    //                 return;
+    //             }
+
+    //             // Otherwise, insert a hard or soft tab.
+    //             let settings = buffer.settings_at(cursor, cx);
+    //             let tab_size = if settings.hard_tabs {
+    //                 IndentSize::tab()
+    //             } else {
+    //                 let tab_size = settings.tab_size.get();
+    //                 let char_column = snapshot
+    //                     .text_for_range(Point::new(cursor.row, 0)..cursor)
+    //                     .flat_map(str::chars)
+    //                     .count()
+    //                     + row_delta as usize;
+    //                 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
+    //                 IndentSize::spaces(chars_to_next_tab_stop)
+    //             };
+    //             selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
+    //             selection.end = selection.start;
+    //             edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
+    //             row_delta += tab_size.len;
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+    //             this.refresh_copilot_suggestions(true, cx);
+    //         });
+    //     }
+
+    //     pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
+    //         let mut selections = self.selections.all::<Point>(cx);
+    //         let mut prev_edited_row = 0;
+    //         let mut row_delta = 0;
+    //         let mut edits = Vec::new();
+    //         let buffer = self.buffer.read(cx);
+    //         let snapshot = buffer.snapshot(cx);
+    //         for selection in &mut selections {
+    //             if selection.start.row != prev_edited_row {
+    //                 row_delta = 0;
+    //             }
+    //             prev_edited_row = selection.end.row;
+
+    //             row_delta =
+    //                 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+    //         });
+    //     }
+
+    //     fn indent_selection(
+    //         buffer: &MultiBuffer,
+    //         snapshot: &MultiBufferSnapshot,
+    //         selection: &mut Selection<Point>,
+    //         edits: &mut Vec<(Range<Point>, String)>,
+    //         delta_for_start_row: u32,
+    //         cx: &AppContext,
+    //     ) -> u32 {
+    //         let settings = buffer.settings_at(selection.start, cx);
+    //         let tab_size = settings.tab_size.get();
+    //         let indent_kind = if settings.hard_tabs {
+    //             IndentKind::Tab
+    //         } else {
+    //             IndentKind::Space
+    //         };
+    //         let mut start_row = selection.start.row;
+    //         let mut end_row = selection.end.row + 1;
+
+    //         // If a selection ends at the beginning of a line, don't indent
+    //         // that last line.
+    //         if selection.end.column == 0 {
+    //             end_row -= 1;
+    //         }
+
+    //         // Avoid re-indenting a row that has already been indented by a
+    //         // previous selection, but still update this selection's column
+    //         // to reflect that indentation.
+    //         if delta_for_start_row > 0 {
+    //             start_row += 1;
+    //             selection.start.column += delta_for_start_row;
+    //             if selection.end.row == selection.start.row {
+    //                 selection.end.column += delta_for_start_row;
+    //             }
+    //         }
+
+    //         let mut delta_for_end_row = 0;
+    //         for row in start_row..end_row {
+    //             let current_indent = snapshot.indent_size_for_line(row);
+    //             let indent_delta = match (current_indent.kind, indent_kind) {
+    //                 (IndentKind::Space, IndentKind::Space) => {
+    //                     let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
+    //                     IndentSize::spaces(columns_to_next_tab_stop)
+    //                 }
+    //                 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
+    //                 (_, IndentKind::Tab) => IndentSize::tab(),
+    //             };
+
+    //             let row_start = Point::new(row, 0);
+    //             edits.push((
+    //                 row_start..row_start,
+    //                 indent_delta.chars().collect::<String>(),
+    //             ));
+
+    //             // Update this selection's endpoints to reflect the indentation.
+    //             if row == selection.start.row {
+    //                 selection.start.column += indent_delta.len;
+    //             }
+    //             if row == selection.end.row {
+    //                 selection.end.column += indent_delta.len;
+    //                 delta_for_end_row = indent_delta.len;
+    //             }
+    //         }
+
+    //         if selection.start.row == selection.end.row {
+    //             delta_for_start_row + delta_for_end_row
+    //         } else {
+    //             delta_for_end_row
+    //         }
+    //     }
+
+    //     pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let mut deletion_ranges = Vec::new();
+    //         let mut last_outdent = None;
+    //         {
+    //             let buffer = self.buffer.read(cx);
+    //             let snapshot = buffer.snapshot(cx);
+    //             for selection in &selections {
+    //                 let settings = buffer.settings_at(selection.start, cx);
+    //                 let tab_size = settings.tab_size.get();
+    //                 let mut rows = selection.spanned_rows(false, &display_map);
+
+    //                 // Avoid re-outdenting a row that has already been outdented by a
+    //                 // previous selection.
+    //                 if let Some(last_row) = last_outdent {
+    //                     if last_row == rows.start {
+    //                         rows.start += 1;
+    //                     }
+    //                 }
+
+    //                 for row in rows {
+    //                     let indent_size = snapshot.indent_size_for_line(row);
+    //                     if indent_size.len > 0 {
+    //                         let deletion_len = match indent_size.kind {
+    //                             IndentKind::Space => {
+    //                                 let columns_to_prev_tab_stop = indent_size.len % tab_size;
+    //                                 if columns_to_prev_tab_stop == 0 {
+    //                                     tab_size
+    //                                 } else {
+    //                                     columns_to_prev_tab_stop
+    //                                 }
+    //                             }
+    //                             IndentKind::Tab => 1,
+    //                         };
+    //                         deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
+    //                         last_outdent = Some(row);
+    //                     }
+    //                 }
+    //             }
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 let empty_str: Arc<str> = "".into();
+    //                 buffer.edit(
+    //                     deletion_ranges
+    //                         .into_iter()
+    //                         .map(|range| (range, empty_str.clone())),
+    //                     None,
+    //                     cx,
+    //                 );
+    //             });
+    //             let selections = this.selections.all::<usize>(cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+    //         });
+    //     }
+
+    //     pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let selections = self.selections.all::<Point>(cx);
+
+    //         let mut new_cursors = Vec::new();
+    //         let mut edit_ranges = Vec::new();
+    //         let mut selections = selections.iter().peekable();
+    //         while let Some(selection) = selections.next() {
+    //             let mut rows = selection.spanned_rows(false, &display_map);
+    //             let goal_display_column = selection.head().to_display_point(&display_map).column();
+
+    //             // Accumulate contiguous regions of rows that we want to delete.
+    //             while let Some(next_selection) = selections.peek() {
+    //                 let next_rows = next_selection.spanned_rows(false, &display_map);
+    //                 if next_rows.start <= rows.end {
+    //                     rows.end = next_rows.end;
+    //                     selections.next().unwrap();
+    //                 } else {
+    //                     break;
+    //                 }
+    //             }
+
+    //             let buffer = &display_map.buffer_snapshot;
+    //             let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
+    //             let edit_end;
+    //             let cursor_buffer_row;
+    //             if buffer.max_point().row >= rows.end {
+    //                 // If there's a line after the range, delete the \n from the end of the row range
+    //                 // and position the cursor on the next line.
+    //                 edit_end = Point::new(rows.end, 0).to_offset(buffer);
+    //                 cursor_buffer_row = rows.end;
+    //             } else {
+    //                 // If there isn't a line after the range, delete the \n from the line before the
+    //                 // start of the row range and position the cursor there.
+    //                 edit_start = edit_start.saturating_sub(1);
+    //                 edit_end = buffer.len();
+    //                 cursor_buffer_row = rows.start.saturating_sub(1);
+    //             }
+
+    //             let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
+    //             *cursor.column_mut() =
+    //                 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
+
+    //             new_cursors.push((
+    //                 selection.id,
+    //                 buffer.anchor_after(cursor.to_point(&display_map)),
+    //             ));
+    //             edit_ranges.push(edit_start..edit_end);
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             let buffer = this.buffer.update(cx, |buffer, cx| {
+    //                 let empty_str: Arc<str> = "".into();
+    //                 buffer.edit(
+    //                     edit_ranges
+    //                         .into_iter()
+    //                         .map(|range| (range, empty_str.clone())),
+    //                     None,
+    //                     cx,
+    //                 );
+    //                 buffer.snapshot(cx)
+    //             });
+    //             let new_selections = new_cursors
+    //                 .into_iter()
+    //                 .map(|(id, cursor)| {
+    //                     let cursor = cursor.to_point(&buffer);
+    //                     Selection {
+    //                         id,
+    //                         start: cursor,
+    //                         end: cursor,
+    //                         reversed: false,
+    //                         goal: SelectionGoal::None,
+    //                     }
+    //                 })
+    //                 .collect();
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(new_selections);
+    //             });
+    //         });
+    //     }
+
+    //     pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
+    //         let mut row_ranges = Vec::<Range<u32>>::new();
+    //         for selection in self.selections.all::<Point>(cx) {
+    //             let start = selection.start.row;
+    //             let end = if selection.start.row == selection.end.row {
+    //                 selection.start.row + 1
+    //             } else {
+    //                 selection.end.row
+    //             };
+
+    //             if let Some(last_row_range) = row_ranges.last_mut() {
+    //                 if start <= last_row_range.end {
+    //                     last_row_range.end = end;
+    //                     continue;
+    //                 }
+    //             }
+    //             row_ranges.push(start..end);
+    //         }
+
+    //         let snapshot = self.buffer.read(cx).snapshot(cx);
+    //         let mut cursor_positions = Vec::new();
+    //         for row_range in &row_ranges {
+    //             let anchor = snapshot.anchor_before(Point::new(
+    //                 row_range.end - 1,
+    //                 snapshot.line_len(row_range.end - 1),
+    //             ));
+    //             cursor_positions.push(anchor.clone()..anchor);
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             for row_range in row_ranges.into_iter().rev() {
+    //                 for row in row_range.rev() {
+    //                     let end_of_line = Point::new(row, snapshot.line_len(row));
+    //                     let indent = snapshot.indent_size_for_line(row + 1);
+    //                     let start_of_next_line = Point::new(row + 1, indent.len);
+
+    //                     let replace = if snapshot.line_len(row + 1) > indent.len {
+    //                         " "
+    //                     } else {
+    //                         ""
+    //                     };
+
+    //                     this.buffer.update(cx, |buffer, cx| {
+    //                         buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
+    //                     });
+    //                 }
+    //             }
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select_anchor_ranges(cursor_positions)
+    //             });
+    //         });
+    //     }
+
+    //     pub fn sort_lines_case_sensitive(
+    //         &mut self,
+    //         _: &SortLinesCaseSensitive,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.manipulate_lines(cx, |lines| lines.sort())
+    //     }
+
+    //     pub fn sort_lines_case_insensitive(
+    //         &mut self,
+    //         _: &SortLinesCaseInsensitive,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
+    //     }
+
+    //     pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_lines(cx, |lines| lines.reverse())
+    //     }
+
+    //     pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
+    //     }
+
+    //     fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
+    //     where
+    //         Fn: FnMut(&mut [&str]),
+    //     {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+
+    //         let mut edits = Vec::new();
+
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let mut selections = selections.iter().peekable();
+    //         let mut contiguous_row_selections = Vec::new();
+    //         let mut new_selections = Vec::new();
+
+    //         while let Some(selection) = selections.next() {
+    //             let (start_row, end_row) = consume_contiguous_rows(
+    //                 &mut contiguous_row_selections,
+    //                 selection,
+    //                 &display_map,
+    //                 &mut selections,
+    //             );
+
+    //             let start_point = Point::new(start_row, 0);
+    //             let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
+    //             let text = buffer
+    //                 .text_for_range(start_point..end_point)
+    //                 .collect::<String>();
+    //             let mut lines = text.split("\n").collect_vec();
+
+    //             let lines_len = lines.len();
+    //             callback(&mut lines);
+
+    //             // This is a current limitation with selections.
+    //             // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
+    //             debug_assert!(
+    //                 lines.len() == lines_len,
+    //                 "callback should not change the number of lines"
+    //             );
+
+    //             edits.push((start_point..end_point, lines.join("\n")));
+    //             let start_anchor = buffer.anchor_after(start_point);
+    //             let end_anchor = buffer.anchor_before(end_point);
+
+    //             // Make selection and push
+    //             new_selections.push(Selection {
+    //                 id: selection.id,
+    //                 start: start_anchor.to_offset(&buffer),
+    //                 end: end_anchor.to_offset(&buffer),
+    //                 goal: SelectionGoal::None,
+    //                 reversed: selection.reversed,
+    //             });
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 buffer.edit(edits, None, cx);
+    //             });
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(new_selections);
+    //             });
+
+    //             this.request_autoscroll(Autoscroll::fit(), cx);
+    //         });
+    //     }
+
+    //     pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_text(cx, |text| text.to_uppercase())
+    //     }
+
+    //     pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_text(cx, |text| text.to_lowercase())
+    //     }
+
+    //     pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_text(cx, |text| {
+    //             // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
+    //             // https://github.com/rutrum/convert-case/issues/16
+    //             text.split("\n")
+    //                 .map(|line| line.to_case(Case::Title))
+    //                 .join("\n")
+    //         })
+    //     }
+
+    //     pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_text(cx, |text| text.to_case(Case::Snake))
+    //     }
+
+    //     pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
+    //         self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
+    //     }
+
+    //     pub fn convert_to_upper_camel_case(
+    //         &mut self,
+    //         _: &ConvertToUpperCamelCase,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.manipulate_text(cx, |text| {
+    //             // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
+    //             // https://github.com/rutrum/convert-case/issues/16
+    //             text.split("\n")
+    //                 .map(|line| line.to_case(Case::UpperCamel))
+    //                 .join("\n")
+    //         })
+    //     }
+
+    //     pub fn convert_to_lower_camel_case(
+    //         &mut self,
+    //         _: &ConvertToLowerCamelCase,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.manipulate_text(cx, |text| text.to_case(Case::Camel))
+    //     }
+
+    //     fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
+    //     where
+    //         Fn: FnMut(&str) -> String,
+    //     {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+
+    //         let mut new_selections = Vec::new();
+    //         let mut edits = Vec::new();
+    //         let mut selection_adjustment = 0i32;
+
+    //         for selection in self.selections.all::<usize>(cx) {
+    //             let selection_is_empty = selection.is_empty();
+
+    //             let (start, end) = if selection_is_empty {
+    //                 let word_range = movement::surrounding_word(
+    //                     &display_map,
+    //                     selection.start.to_display_point(&display_map),
+    //                 );
+    //                 let start = word_range.start.to_offset(&display_map, Bias::Left);
+    //                 let end = word_range.end.to_offset(&display_map, Bias::Left);
+    //                 (start, end)
+    //             } else {
+    //                 (selection.start, selection.end)
+    //             };
+
+    //             let text = buffer.text_for_range(start..end).collect::<String>();
+    //             let old_length = text.len() as i32;
+    //             let text = callback(&text);
+
+    //             new_selections.push(Selection {
+    //                 start: (start as i32 - selection_adjustment) as usize,
+    //                 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
+    //                 goal: SelectionGoal::None,
+    //                 ..selection
+    //             });
+
+    //             selection_adjustment += old_length - text.len() as i32;
+
+    //             edits.push((start..end, text));
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 buffer.edit(edits, None, cx);
+    //             });
+
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(new_selections);
+    //             });
+
+    //             this.request_autoscroll(Autoscroll::fit(), cx);
+    //         });
+    //     }
+
+    //     pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = &display_map.buffer_snapshot;
+    //         let selections = self.selections.all::<Point>(cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut selections_iter = selections.iter().peekable();
+    //         while let Some(selection) = selections_iter.next() {
+    //             // Avoid duplicating the same lines twice.
+    //             let mut rows = selection.spanned_rows(false, &display_map);
+
+    //             while let Some(next_selection) = selections_iter.peek() {
+    //                 let next_rows = next_selection.spanned_rows(false, &display_map);
+    //                 if next_rows.start < rows.end {
+    //                     rows.end = next_rows.end;
+    //                     selections_iter.next().unwrap();
+    //                 } else {
+    //                     break;
+    //                 }
+    //             }
+
+    //             // Copy the text from the selected row region and splice it at the start of the region.
+    //             let start = Point::new(rows.start, 0);
+    //             let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
+    //             let text = buffer
+    //                 .text_for_range(start..end)
+    //                 .chain(Some("\n"))
+    //                 .collect::<String>();
+    //             edits.push((start..start, text));
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 buffer.edit(edits, None, cx);
+    //             });
+
+    //             this.request_autoscroll(Autoscroll::fit(), cx);
+    //         });
+    //     }
+
+    //     pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut unfold_ranges = Vec::new();
+    //         let mut refold_ranges = Vec::new();
+
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let mut selections = selections.iter().peekable();
+    //         let mut contiguous_row_selections = Vec::new();
+    //         let mut new_selections = Vec::new();
+
+    //         while let Some(selection) = selections.next() {
+    //             // Find all the selections that span a contiguous row range
+    //             let (start_row, end_row) = consume_contiguous_rows(
+    //                 &mut contiguous_row_selections,
+    //                 selection,
+    //                 &display_map,
+    //                 &mut selections,
+    //             );
+
+    //             // Move the text spanned by the row range to be before the line preceding the row range
+    //             if start_row > 0 {
+    //                 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
+    //                     ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
+    //                 let insertion_point = display_map
+    //                     .prev_line_boundary(Point::new(start_row - 1, 0))
+    //                     .0;
+
+    //                 // Don't move lines across excerpts
+    //                 if buffer
+    //                     .excerpt_boundaries_in_range((
+    //                         Bound::Excluded(insertion_point),
+    //                         Bound::Included(range_to_move.end),
+    //                     ))
+    //                     .next()
+    //                     .is_none()
+    //                 {
+    //                     let text = buffer
+    //                         .text_for_range(range_to_move.clone())
+    //                         .flat_map(|s| s.chars())
+    //                         .skip(1)
+    //                         .chain(['\n'])
+    //                         .collect::<String>();
+
+    //                     edits.push((
+    //                         buffer.anchor_after(range_to_move.start)
+    //                             ..buffer.anchor_before(range_to_move.end),
+    //                         String::new(),
+    //                     ));
+    //                     let insertion_anchor = buffer.anchor_after(insertion_point);
+    //                     edits.push((insertion_anchor..insertion_anchor, text));
+
+    //                     let row_delta = range_to_move.start.row - insertion_point.row + 1;
+
+    //                     // Move selections up
+    //                     new_selections.extend(contiguous_row_selections.drain(..).map(
+    //                         |mut selection| {
+    //                             selection.start.row -= row_delta;
+    //                             selection.end.row -= row_delta;
+    //                             selection
+    //                         },
+    //                     ));
+
+    //                     // Move folds up
+    //                     unfold_ranges.push(range_to_move.clone());
+    //                     for fold in display_map.folds_in_range(
+    //                         buffer.anchor_before(range_to_move.start)
+    //                             ..buffer.anchor_after(range_to_move.end),
+    //                     ) {
+    //                         let mut start = fold.start.to_point(&buffer);
+    //                         let mut end = fold.end.to_point(&buffer);
+    //                         start.row -= row_delta;
+    //                         end.row -= row_delta;
+    //                         refold_ranges.push(start..end);
+    //                     }
+    //                 }
+    //             }
+
+    //             // If we didn't move line(s), preserve the existing selections
+    //             new_selections.append(&mut contiguous_row_selections);
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.unfold_ranges(unfold_ranges, true, true, cx);
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 for (range, text) in edits {
+    //                     buffer.edit([(range, text)], None, cx);
+    //                 }
+    //             });
+    //             this.fold_ranges(refold_ranges, true, cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(new_selections);
+    //             })
+    //         });
+    //     }
+
+    //     pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+
+    //         let mut edits = Vec::new();
+    //         let mut unfold_ranges = Vec::new();
+    //         let mut refold_ranges = Vec::new();
+
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let mut selections = selections.iter().peekable();
+    //         let mut contiguous_row_selections = Vec::new();
+    //         let mut new_selections = Vec::new();
+
+    //         while let Some(selection) = selections.next() {
+    //             // Find all the selections that span a contiguous row range
+    //             let (start_row, end_row) = consume_contiguous_rows(
+    //                 &mut contiguous_row_selections,
+    //                 selection,
+    //                 &display_map,
+    //                 &mut selections,
+    //             );
+
+    //             // Move the text spanned by the row range to be after the last line of the row range
+    //             if end_row <= buffer.max_point().row {
+    //                 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
+    //                 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
+
+    //                 // Don't move lines across excerpt boundaries
+    //                 if buffer
+    //                     .excerpt_boundaries_in_range((
+    //                         Bound::Excluded(range_to_move.start),
+    //                         Bound::Included(insertion_point),
+    //                     ))
+    //                     .next()
+    //                     .is_none()
+    //                 {
+    //                     let mut text = String::from("\n");
+    //                     text.extend(buffer.text_for_range(range_to_move.clone()));
+    //                     text.pop(); // Drop trailing newline
+    //                     edits.push((
+    //                         buffer.anchor_after(range_to_move.start)
+    //                             ..buffer.anchor_before(range_to_move.end),
+    //                         String::new(),
+    //                     ));
+    //                     let insertion_anchor = buffer.anchor_after(insertion_point);
+    //                     edits.push((insertion_anchor..insertion_anchor, text));
+
+    //                     let row_delta = insertion_point.row - range_to_move.end.row + 1;
+
+    //                     // Move selections down
+    //                     new_selections.extend(contiguous_row_selections.drain(..).map(
+    //                         |mut selection| {
+    //                             selection.start.row += row_delta;
+    //                             selection.end.row += row_delta;
+    //                             selection
+    //                         },
+    //                     ));
+
+    //                     // Move folds down
+    //                     unfold_ranges.push(range_to_move.clone());
+    //                     for fold in display_map.folds_in_range(
+    //                         buffer.anchor_before(range_to_move.start)
+    //                             ..buffer.anchor_after(range_to_move.end),
+    //                     ) {
+    //                         let mut start = fold.start.to_point(&buffer);
+    //                         let mut end = fold.end.to_point(&buffer);
+    //                         start.row += row_delta;
+    //                         end.row += row_delta;
+    //                         refold_ranges.push(start..end);
+    //                     }
+    //                 }
+    //             }
+
+    //             // If we didn't move line(s), preserve the existing selections
+    //             new_selections.append(&mut contiguous_row_selections);
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.unfold_ranges(unfold_ranges, true, true, cx);
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 for (range, text) in edits {
+    //                     buffer.edit([(range, text)], None, cx);
+    //                 }
+    //             });
+    //             this.fold_ranges(refold_ranges, true, cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
+    //         });
+    //     }
+
+    //     pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.transact(cx, |this, cx| {
+    //             let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let mut edits: Vec<(Range<usize>, String)> = Default::default();
+    //                 let line_mode = s.line_mode;
+    //                 s.move_with(|display_map, selection| {
+    //                     if !selection.is_empty() || line_mode {
+    //                         return;
+    //                     }
+
+    //                     let mut head = selection.head();
+    //                     let mut transpose_offset = head.to_offset(display_map, Bias::Right);
+    //                     if head.column() == display_map.line_len(head.row()) {
+    //                         transpose_offset = display_map
+    //                             .buffer_snapshot
+    //                             .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
+    //                     }
+
+    //                     if transpose_offset == 0 {
+    //                         return;
+    //                     }
+
+    //                     *head.column_mut() += 1;
+    //                     head = display_map.clip_point(head, Bias::Right);
+    //                     let goal = SelectionGoal::HorizontalPosition(
+    //                         display_map.x_for_point(head, &text_layout_details),
+    //                     );
+    //                     selection.collapse_to(head, goal);
+
+    //                     let transpose_start = display_map
+    //                         .buffer_snapshot
+    //                         .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
+    //                     if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
+    //                         let transpose_end = display_map
+    //                             .buffer_snapshot
+    //                             .clip_offset(transpose_offset + 1, Bias::Right);
+    //                         if let Some(ch) =
+    //                             display_map.buffer_snapshot.chars_at(transpose_start).next()
+    //                         {
+    //                             edits.push((transpose_start..transpose_offset, String::new()));
+    //                             edits.push((transpose_end..transpose_end, ch.to_string()));
+    //                         }
+    //                     }
+    //                 });
+    //                 edits
+    //             });
+    //             this.buffer
+    //                 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
+    //             let selections = this.selections.all::<usize>(cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(selections);
+    //             });
+    //         });
+    //     }
+
+    //     pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
+    //         let mut text = String::new();
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+    //         let mut selections = self.selections.all::<Point>(cx);
+    //         let mut clipboard_selections = Vec::with_capacity(selections.len());
+    //         {
+    //             let max_point = buffer.max_point();
+    //             let mut is_first = true;
+    //             for selection in &mut selections {
+    //                 let is_entire_line = selection.is_empty() || self.selections.line_mode;
+    //                 if is_entire_line {
+    //                     selection.start = Point::new(selection.start.row, 0);
+    //                     selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
+    //                     selection.goal = SelectionGoal::None;
+    //                 }
+    //                 if is_first {
+    //                     is_first = false;
+    //                 } else {
+    //                     text += "\n";
+    //                 }
+    //                 let mut len = 0;
+    //                 for chunk in buffer.text_for_range(selection.start..selection.end) {
+    //                     text.push_str(chunk);
+    //                     len += chunk.len();
+    //                 }
+    //                 clipboard_selections.push(ClipboardSelection {
+    //                     len,
+    //                     is_entire_line,
+    //                     first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
+    //                 });
+    //             }
+    //         }
+
+    //         self.transact(cx, |this, cx| {
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(selections);
+    //             });
+    //             this.insert("", cx);
+    //             cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
+    //         });
+    //     }
+
+    //     pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let buffer = self.buffer.read(cx).read(cx);
+    //         let mut text = String::new();
+
+    //         let mut clipboard_selections = Vec::with_capacity(selections.len());
+    //         {
+    //             let max_point = buffer.max_point();
+    //             let mut is_first = true;
+    //             for selection in selections.iter() {
+    //                 let mut start = selection.start;
+    //                 let mut end = selection.end;
+    //                 let is_entire_line = selection.is_empty() || self.selections.line_mode;
+    //                 if is_entire_line {
+    //                     start = Point::new(start.row, 0);
+    //                     end = cmp::min(max_point, Point::new(end.row + 1, 0));
+    //                 }
+    //                 if is_first {
+    //                     is_first = false;
+    //                 } else {
+    //                     text += "\n";
+    //                 }
+    //                 let mut len = 0;
+    //                 for chunk in buffer.text_for_range(start..end) {
+    //                     text.push_str(chunk);
+    //                     len += chunk.len();
+    //                 }
+    //                 clipboard_selections.push(ClipboardSelection {
+    //                     len,
+    //                     is_entire_line,
+    //                     first_line_indent: buffer.indent_size_for_line(start.row).len,
+    //                 });
+    //             }
+    //         }
+
+    //         cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
+    //     }
+
+    //     pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             if let Some(item) = cx.read_from_clipboard() {
+    //                 let clipboard_text = Cow::Borrowed(item.text());
+    //                 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
+    //                     let old_selections = this.selections.all::<usize>(cx);
+    //                     let all_selections_were_entire_line =
+    //                         clipboard_selections.iter().all(|s| s.is_entire_line);
+    //                     let first_selection_indent_column =
+    //                         clipboard_selections.first().map(|s| s.first_line_indent);
+    //                     if clipboard_selections.len() != old_selections.len() {
+    //                         clipboard_selections.drain(..);
+    //                     }
+
+    //                     this.buffer.update(cx, |buffer, cx| {
+    //                         let snapshot = buffer.read(cx);
+    //                         let mut start_offset = 0;
+    //                         let mut edits = Vec::new();
+    //                         let mut original_indent_columns = Vec::new();
+    //                         let line_mode = this.selections.line_mode;
+    //                         for (ix, selection) in old_selections.iter().enumerate() {
+    //                             let to_insert;
+    //                             let entire_line;
+    //                             let original_indent_column;
+    //                             if let Some(clipboard_selection) = clipboard_selections.get(ix) {
+    //                                 let end_offset = start_offset + clipboard_selection.len;
+    //                                 to_insert = &clipboard_text[start_offset..end_offset];
+    //                                 entire_line = clipboard_selection.is_entire_line;
+    //                                 start_offset = end_offset + 1;
+    //                                 original_indent_column =
+    //                                     Some(clipboard_selection.first_line_indent);
+    //                             } else {
+    //                                 to_insert = clipboard_text.as_str();
+    //                                 entire_line = all_selections_were_entire_line;
+    //                                 original_indent_column = first_selection_indent_column
+    //                             }
+
+    //                             // If the corresponding selection was empty when this slice of the
+    //                             // clipboard text was written, then the entire line containing the
+    //                             // selection was copied. If this selection is also currently empty,
+    //                             // then paste the line before the current line of the buffer.
+    //                             let range = if selection.is_empty() && !line_mode && entire_line {
+    //                                 let column = selection.start.to_point(&snapshot).column as usize;
+    //                                 let line_start = selection.start - column;
+    //                                 line_start..line_start
+    //                             } else {
+    //                                 selection.range()
+    //                             };
+
+    //                             edits.push((range, to_insert));
+    //                             original_indent_columns.extend(original_indent_column);
+    //                         }
+    //                         drop(snapshot);
+
+    //                         buffer.edit(
+    //                             edits,
+    //                             Some(AutoindentMode::Block {
+    //                                 original_indent_columns,
+    //                             }),
+    //                             cx,
+    //                         );
+    //                     });
+
+    //                     let selections = this.selections.all::<usize>(cx);
+    //                     this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+    //                 } else {
+    //                     this.insert(&clipboard_text, cx);
+    //                 }
+    //             }
+    //         });
+    //     }
+
+    //     pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
+    //         if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
+    //             if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
+    //                 self.change_selections(None, cx, |s| {
+    //                     s.select_anchors(selections.to_vec());
+    //                 });
+    //             }
+    //             self.request_autoscroll(Autoscroll::fit(), cx);
+    //             self.unmark_text(cx);
+    //             self.refresh_copilot_suggestions(true, cx);
+    //             cx.emit(Event::Edited);
+    //         }
+    //     }
+
+    //     pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
+    //         if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
+    //             if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
+    //             {
+    //                 self.change_selections(None, cx, |s| {
+    //                     s.select_anchors(selections.to_vec());
+    //                 });
+    //             }
+    //             self.request_autoscroll(Autoscroll::fit(), cx);
+    //             self.unmark_text(cx);
+    //             self.refresh_copilot_suggestions(true, cx);
+    //             cx.emit(Event::Edited);
+    //         }
+    //     }
+
+    //     pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.buffer
+    //             .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
+    //     }
+
+    //     pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 let cursor = if selection.is_empty() && !line_mode {
+    //                     movement::left(map, selection.start)
+    //                 } else {
+    //                     selection.start
+    //                 };
+    //                 selection.collapse_to(cursor, SelectionGoal::None);
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
+    //         })
+    //     }
+
+    //     pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 let cursor = if selection.is_empty() && !line_mode {
+    //                     movement::right(map, selection.end)
+    //                 } else {
+    //                     selection.end
+    //                 };
+    //                 selection.collapse_to(cursor, SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
+    //         })
+    //     }
+
+    //     pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
+    //         if self.take_rename(true, cx).is_some() {
+    //             return;
+    //         }
+
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let text_layout_details = &self.text_layout_details(cx);
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 if !selection.is_empty() && !line_mode {
+    //                     selection.goal = SelectionGoal::None;
+    //                 }
+    //                 let (cursor, goal) = movement::up(
+    //                     map,
+    //                     selection.start,
+    //                     selection.goal,
+    //                     false,
+    //                     &text_layout_details,
+    //                 );
+    //                 selection.collapse_to(cursor, goal);
+    //             });
+    //         })
+    //     }
+
+    //     pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
+    //         if self.take_rename(true, cx).is_some() {
+    //             return;
+    //         }
+
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let row_count = if let Some(row_count) = self.visible_line_count() {
+    //             row_count as u32 - 1
+    //         } else {
+    //             return;
+    //         };
+
+    //         let autoscroll = if action.center_cursor {
+    //             Autoscroll::center()
+    //         } else {
+    //             Autoscroll::fit()
+    //         };
+
+    //         let text_layout_details = &self.text_layout_details(cx);
+
+    //         self.change_selections(Some(autoscroll), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 if !selection.is_empty() && !line_mode {
+    //                     selection.goal = SelectionGoal::None;
+    //                 }
+    //                 let (cursor, goal) = movement::up_by_rows(
+    //                     map,
+    //                     selection.end,
+    //                     row_count,
+    //                     selection.goal,
+    //                     false,
+    //                     &text_layout_details,
+    //                 );
+    //                 selection.collapse_to(cursor, goal);
+    //             });
+    //         });
+    //     }
+
+    //     pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, goal| {
+    //                 movement::up(map, head, goal, false, &text_layout_details)
+    //             })
+    //         })
+    //     }
+
+    //     pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
+    //         self.take_rename(true, cx);
+
+    //         if self.mode == EditorMode::SingleLine {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 if !selection.is_empty() && !line_mode {
+    //                     selection.goal = SelectionGoal::None;
+    //                 }
+    //                 let (cursor, goal) = movement::down(
+    //                     map,
+    //                     selection.end,
+    //                     selection.goal,
+    //                     false,
+    //                     &text_layout_details,
+    //                 );
+    //                 selection.collapse_to(cursor, goal);
+    //             });
+    //         });
+    //     }
+
+    //     pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
+    //         if self.take_rename(true, cx).is_some() {
+    //             return;
+    //         }
+
+    //         if self
+    //             .context_menu
+    //             .write()
+    //             .as_mut()
+    //             .map(|menu| menu.select_last(self.project.as_ref(), cx))
+    //             .unwrap_or(false)
+    //         {
+    //             return;
+    //         }
+
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let row_count = if let Some(row_count) = self.visible_line_count() {
+    //             row_count as u32 - 1
+    //         } else {
+    //             return;
+    //         };
+
+    //         let autoscroll = if action.center_cursor {
+    //             Autoscroll::center()
+    //         } else {
+    //             Autoscroll::fit()
+    //         };
+
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.change_selections(Some(autoscroll), cx, |s| {
+    //             let line_mode = s.line_mode;
+    //             s.move_with(|map, selection| {
+    //                 if !selection.is_empty() && !line_mode {
+    //                     selection.goal = SelectionGoal::None;
+    //                 }
+    //                 let (cursor, goal) = movement::down_by_rows(
+    //                     map,
+    //                     selection.end,
+    //                     row_count,
+    //                     selection.goal,
+    //                     false,
+    //                     &text_layout_details,
+    //                 );
+    //                 selection.collapse_to(cursor, goal);
+    //             });
+    //         });
+    //     }
+
+    //     pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, goal| {
+    //                 movement::down(map, head, goal, false, &text_layout_details)
+    //             })
+    //         });
+    //     }
+
+    //     pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
+    //         if let Some(context_menu) = self.context_menu.write().as_mut() {
+    //             context_menu.select_first(self.project.as_ref(), cx);
+    //         }
+    //     }
+
+    //     pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
+    //         if let Some(context_menu) = self.context_menu.write().as_mut() {
+    //             context_menu.select_prev(self.project.as_ref(), cx);
+    //         }
+    //     }
+
+    //     pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
+    //         if let Some(context_menu) = self.context_menu.write().as_mut() {
+    //             context_menu.select_next(self.project.as_ref(), cx);
+    //         }
+    //     }
+
+    //     pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
+    //         if let Some(context_menu) = self.context_menu.write().as_mut() {
+    //             context_menu.select_last(self.project.as_ref(), cx);
+    //         }
+    //     }
+
+    //     pub fn move_to_previous_word_start(
+    //         &mut self,
+    //         _: &MoveToPreviousWordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (
+    //                     movement::previous_word_start(map, head),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn move_to_previous_subword_start(
+    //         &mut self,
+    //         _: &MoveToPreviousSubwordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (
+    //                     movement::previous_subword_start(map, head),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_previous_word_start(
+    //         &mut self,
+    //         _: &SelectToPreviousWordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::previous_word_start(map, head),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_previous_subword_start(
+    //         &mut self,
+    //         _: &SelectToPreviousSubwordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::previous_subword_start(map, head),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn delete_to_previous_word_start(
+    //         &mut self,
+    //         _: &DeleteToPreviousWordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_autoclose_pair(cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let line_mode = s.line_mode;
+    //                 s.move_with(|map, selection| {
+    //                     if selection.is_empty() && !line_mode {
+    //                         let cursor = movement::previous_word_start(map, selection.head());
+    //                         selection.set_head(cursor, SelectionGoal::None);
+    //                     }
+    //                 });
+    //             });
+    //             this.insert("", cx);
+    //         });
+    //     }
+
+    //     pub fn delete_to_previous_subword_start(
+    //         &mut self,
+    //         _: &DeleteToPreviousSubwordStart,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_autoclose_pair(cx);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let line_mode = s.line_mode;
+    //                 s.move_with(|map, selection| {
+    //                     if selection.is_empty() && !line_mode {
+    //                         let cursor = movement::previous_subword_start(map, selection.head());
+    //                         selection.set_head(cursor, SelectionGoal::None);
+    //                     }
+    //                 });
+    //             });
+    //             this.insert("", cx);
+    //         });
+    //     }
+
+    //     pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (movement::next_word_end(map, head), SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn move_to_next_subword_end(
+    //         &mut self,
+    //         _: &MoveToNextSubwordEnd,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (movement::next_subword_end(map, head), SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (movement::next_word_end(map, head), SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_next_subword_end(
+    //         &mut self,
+    //         _: &SelectToNextSubwordEnd,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (movement::next_subword_end(map, head), SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let line_mode = s.line_mode;
+    //                 s.move_with(|map, selection| {
+    //                     if selection.is_empty() && !line_mode {
+    //                         let cursor = movement::next_word_end(map, selection.head());
+    //                         selection.set_head(cursor, SelectionGoal::None);
+    //                     }
+    //                 });
+    //             });
+    //             this.insert("", cx);
+    //         });
+    //     }
+
+    //     pub fn delete_to_next_subword_end(
+    //         &mut self,
+    //         _: &DeleteToNextSubwordEnd,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.transact(cx, |this, cx| {
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.move_with(|map, selection| {
+    //                     if selection.is_empty() {
+    //                         let cursor = movement::next_subword_end(map, selection.head());
+    //                         selection.set_head(cursor, SelectionGoal::None);
+    //                     }
+    //                 });
+    //             });
+    //             this.insert("", cx);
+    //         });
+    //     }
+
+    //     pub fn move_to_beginning_of_line(
+    //         &mut self,
+    //         _: &MoveToBeginningOfLine,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (
+    //                     movement::indented_line_beginning(map, head, true),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_beginning_of_line(
+    //         &mut self,
+    //         action: &SelectToBeginningOfLine,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         });
+    //     }
+
+    //     pub fn delete_to_beginning_of_line(
+    //         &mut self,
+    //         _: &DeleteToBeginningOfLine,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.transact(cx, |this, cx| {
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.move_with(|_, selection| {
+    //                     selection.reversed = true;
+    //                 });
+    //             });
+
+    //             this.select_to_beginning_of_line(
+    //                 &SelectToBeginningOfLine {
+    //                     stop_at_soft_wraps: false,
+    //                 },
+    //                 cx,
+    //             );
+    //             this.backspace(&Backspace, cx);
+    //         });
+    //     }
+
+    //     pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_cursors_with(|map, head, _| {
+    //                 (movement::line_end(map, head, true), SelectionGoal::None)
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_end_of_line(
+    //         &mut self,
+    //         action: &SelectToEndOfLine,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::line_end(map, head, action.stop_at_soft_wraps),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_to_end_of_line(
+    //                 &SelectToEndOfLine {
+    //                     stop_at_soft_wraps: false,
+    //                 },
+    //                 cx,
+    //             );
+    //             this.delete(&Delete, cx);
+    //         });
+    //     }
+
+    //     pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.select_to_end_of_line(
+    //                 &SelectToEndOfLine {
+    //                     stop_at_soft_wraps: false,
+    //                 },
+    //                 cx,
+    //             );
+    //             this.cut(&Cut, cx);
+    //         });
+    //     }
+
+    //     pub fn move_to_start_of_paragraph(
+    //         &mut self,
+    //         _: &MoveToStartOfParagraph,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_with(|map, selection| {
+    //                 selection.collapse_to(
+    //                     movement::start_of_paragraph(map, selection.head(), 1),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn move_to_end_of_paragraph(
+    //         &mut self,
+    //         _: &MoveToEndOfParagraph,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_with(|map, selection| {
+    //                 selection.collapse_to(
+    //                     movement::end_of_paragraph(map, selection.head(), 1),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_start_of_paragraph(
+    //         &mut self,
+    //         _: &SelectToStartOfParagraph,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::start_of_paragraph(map, head, 1),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn select_to_end_of_paragraph(
+    //         &mut self,
+    //         _: &SelectToEndOfParagraph,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_heads_with(|map, head, _| {
+    //                 (
+    //                     movement::end_of_paragraph(map, head, 1),
+    //                     SelectionGoal::None,
+    //                 )
+    //             });
+    //         })
+    //     }
+
+    //     pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select_ranges(vec![0..0]);
+    //         });
+    //     }
+
+    //     pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
+    //         let mut selection = self.selections.last::<Point>(cx);
+    //         selection.set_head(Point::zero(), SelectionGoal::None);
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select(vec![selection]);
+    //         });
+    //     }
+
+    //     pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
+    //         if matches!(self.mode, EditorMode::SingleLine) {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let cursor = self.buffer.read(cx).read(cx).len();
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select_ranges(vec![cursor..cursor])
+    //         });
+    //     }
+
+    //     pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
+    //         self.nav_history = nav_history;
+    //     }
+
+    //     pub fn nav_history(&self) -> Option<&ItemNavHistory> {
+    //         self.nav_history.as_ref()
+    //     }
+
+    //     fn push_to_nav_history(
+    //         &mut self,
+    //         cursor_anchor: Anchor,
+    //         new_position: Option<Point>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if let Some(nav_history) = self.nav_history.as_mut() {
+    //             let buffer = self.buffer.read(cx).read(cx);
+    //             let cursor_position = cursor_anchor.to_point(&buffer);
+    //             let scroll_state = self.scroll_manager.anchor();
+    //             let scroll_top_row = scroll_state.top_row(&buffer);
+    //             drop(buffer);
+
+    //             if let Some(new_position) = new_position {
+    //                 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
+    //                 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
+    //                     return;
+    //                 }
+    //             }
+
+    //             nav_history.push(
+    //                 Some(NavigationData {
+    //                     cursor_anchor,
+    //                     cursor_position,
+    //                     scroll_anchor: scroll_state,
+    //                     scroll_top_row,
+    //                 }),
+    //                 cx,
+    //             );
+    //         }
+    //     }
+
+    //     pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+    //         let mut selection = self.selections.first::<usize>(cx);
+    //         selection.set_head(buffer.len(), SelectionGoal::None);
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select(vec![selection]);
+    //         });
+    //     }
+
+    //     pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
+    //         let end = self.buffer.read(cx).read(cx).len();
+    //         self.change_selections(None, cx, |s| {
+    //             s.select_ranges(vec![0..end]);
+    //         });
+    //     }
+
+    //     pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let mut selections = self.selections.all::<Point>(cx);
+    //         let max_point = display_map.buffer_snapshot.max_point();
+    //         for selection in &mut selections {
+    //             let rows = selection.spanned_rows(true, &display_map);
+    //             selection.start = Point::new(rows.start, 0);
+    //             selection.end = cmp::min(max_point, Point::new(rows.end, 0));
+    //             selection.reversed = false;
+    //         }
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select(selections);
+    //         });
+    //     }
+
+    //     pub fn split_selection_into_lines(
+    //         &mut self,
+    //         _: &SplitSelectionIntoLines,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let mut to_unfold = Vec::new();
+    //         let mut new_selection_ranges = Vec::new();
+    //         {
+    //             let selections = self.selections.all::<Point>(cx);
+    //             let buffer = self.buffer.read(cx).read(cx);
+    //             for selection in selections {
+    //                 for row in selection.start.row..selection.end.row {
+    //                     let cursor = Point::new(row, buffer.line_len(row));
+    //                     new_selection_ranges.push(cursor..cursor);
+    //                 }
+    //                 new_selection_ranges.push(selection.end..selection.end);
+    //                 to_unfold.push(selection.start..selection.end);
+    //             }
+    //         }
+    //         self.unfold_ranges(to_unfold, true, true, cx);
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select_ranges(new_selection_ranges);
+    //         });
+    //     }
+
+    //     pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
+    //         self.add_selection(true, cx);
+    //     }
+
+    //     pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
+    //         self.add_selection(false, cx);
+    //     }
+
+    //     fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let mut selections = self.selections.all::<Point>(cx);
+    //         let text_layout_details = self.text_layout_details(cx);
+    //         let mut state = self.add_selections_state.take().unwrap_or_else(|| {
+    //             let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
+    //             let range = oldest_selection.display_range(&display_map).sorted();
+
+    //             let start_x = display_map.x_for_point(range.start, &text_layout_details);
+    //             let end_x = display_map.x_for_point(range.end, &text_layout_details);
+    //             let positions = start_x.min(end_x)..start_x.max(end_x);
+
+    //             selections.clear();
+    //             let mut stack = Vec::new();
+    //             for row in range.start.row()..=range.end.row() {
+    //                 if let Some(selection) = self.selections.build_columnar_selection(
+    //                     &display_map,
+    //                     row,
+    //                     &positions,
+    //                     oldest_selection.reversed,
+    //                     &text_layout_details,
+    //                 ) {
+    //                     stack.push(selection.id);
+    //                     selections.push(selection);
+    //                 }
+    //             }
+
+    //             if above {
+    //                 stack.reverse();
+    //             }
+
+    //             AddSelectionsState { above, stack }
+    //         });
+
+    //         let last_added_selection = *state.stack.last().unwrap();
+    //         let mut new_selections = Vec::new();
+    //         if above == state.above {
+    //             let end_row = if above {
+    //                 0
+    //             } else {
+    //                 display_map.max_point().row()
+    //             };
+
+    //             'outer: for selection in selections {
+    //                 if selection.id == last_added_selection {
+    //                     let range = selection.display_range(&display_map).sorted();
+    //                     debug_assert_eq!(range.start.row(), range.end.row());
+    //                     let mut row = range.start.row();
+    //                     let positions = if let SelectionGoal::HorizontalRange { start, end } =
+    //                         selection.goal
+    //                     {
+    //                         start..end
+    //                     } else {
+    //                         let start_x = display_map.x_for_point(range.start, &text_layout_details);
+    //                         let end_x = display_map.x_for_point(range.end, &text_layout_details);
+
+    //                         start_x.min(end_x)..start_x.max(end_x)
+    //                     };
+
+    //                     while row != end_row {
+    //                         if above {
+    //                             row -= 1;
+    //                         } else {
+    //                             row += 1;
+    //                         }
+
+    //                         if let Some(new_selection) = self.selections.build_columnar_selection(
+    //                             &display_map,
+    //                             row,
+    //                             &positions,
+    //                             selection.reversed,
+    //                             &text_layout_details,
+    //                         ) {
+    //                             state.stack.push(new_selection.id);
+    //                             if above {
+    //                                 new_selections.push(new_selection);
+    //                                 new_selections.push(selection);
+    //                             } else {
+    //                                 new_selections.push(selection);
+    //                                 new_selections.push(new_selection);
+    //                             }
+
+    //                             continue 'outer;
+    //                         }
+    //                     }
+    //                 }
+
+    //                 new_selections.push(selection);
+    //             }
+    //         } else {
+    //             new_selections = selections;
+    //             new_selections.retain(|s| s.id != last_added_selection);
+    //             state.stack.pop();
+    //         }
+
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.select(new_selections);
+    //         });
+    //         if state.stack.len() > 1 {
+    //             self.add_selections_state = Some(state);
+    //         }
+    //     }
+
+    //     pub fn select_next_match_internal(
+    //         &mut self,
+    //         display_map: &DisplaySnapshot,
+    //         replace_newest: bool,
+    //         autoscroll: Option<Autoscroll>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Result<()> {
+    //         fn select_next_match_ranges(
+    //             this: &mut Editor,
+    //             range: Range<usize>,
+    //             replace_newest: bool,
+    //             auto_scroll: Option<Autoscroll>,
+    //             cx: &mut ViewContext<Editor>,
+    //         ) {
+    //             this.unfold_ranges([range.clone()], false, true, cx);
+    //             this.change_selections(auto_scroll, cx, |s| {
+    //                 if replace_newest {
+    //                     s.delete(s.newest_anchor().id);
+    //                 }
+    //                 s.insert_range(range.clone());
+    //             });
+    //         }
+
+    //         let buffer = &display_map.buffer_snapshot;
+    //         let mut selections = self.selections.all::<usize>(cx);
+    //         if let Some(mut select_next_state) = self.select_next_state.take() {
+    //             let query = &select_next_state.query;
+    //             if !select_next_state.done {
+    //                 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
+    //                 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
+    //                 let mut next_selected_range = None;
+
+    //                 let bytes_after_last_selection =
+    //                     buffer.bytes_in_range(last_selection.end..buffer.len());
+    //                 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
+    //                 let query_matches = query
+    //                     .stream_find_iter(bytes_after_last_selection)
+    //                     .map(|result| (last_selection.end, result))
+    //                     .chain(
+    //                         query
+    //                             .stream_find_iter(bytes_before_first_selection)
+    //                             .map(|result| (0, result)),
+    //                     );
+
+    //                 for (start_offset, query_match) in query_matches {
+    //                     let query_match = query_match.unwrap(); // can only fail due to I/O
+    //                     let offset_range =
+    //                         start_offset + query_match.start()..start_offset + query_match.end();
+    //                     let display_range = offset_range.start.to_display_point(&display_map)
+    //                         ..offset_range.end.to_display_point(&display_map);
+
+    //                     if !select_next_state.wordwise
+    //                         || (!movement::is_inside_word(&display_map, display_range.start)
+    //                             && !movement::is_inside_word(&display_map, display_range.end))
+    //                     {
+    //                         if selections
+    //                             .iter()
+    //                             .find(|selection| selection.range().overlaps(&offset_range))
+    //                             .is_none()
+    //                         {
+    //                             next_selected_range = Some(offset_range);
+    //                             break;
+    //                         }
+    //                     }
+    //                 }
+
+    //                 if let Some(next_selected_range) = next_selected_range {
+    //                     select_next_match_ranges(
+    //                         self,
+    //                         next_selected_range,
+    //                         replace_newest,
+    //                         autoscroll,
+    //                         cx,
+    //                     );
+    //                 } else {
+    //                     select_next_state.done = true;
+    //                 }
+    //             }
+
+    //             self.select_next_state = Some(select_next_state);
+    //         } else if selections.len() == 1 {
+    //             let selection = selections.last_mut().unwrap();
+    //             if selection.start == selection.end {
+    //                 let word_range = movement::surrounding_word(
+    //                     &display_map,
+    //                     selection.start.to_display_point(&display_map),
+    //                 );
+    //                 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
+    //                 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
+    //                 selection.goal = SelectionGoal::None;
+    //                 selection.reversed = false;
+
+    //                 let query = buffer
+    //                     .text_for_range(selection.start..selection.end)
+    //                     .collect::<String>();
+
+    //                 let is_empty = query.is_empty();
+    //                 let select_state = SelectNextState {
+    //                     query: AhoCorasick::new(&[query])?,
+    //                     wordwise: true,
+    //                     done: is_empty,
+    //                 };
+    //                 select_next_match_ranges(
+    //                     self,
+    //                     selection.start..selection.end,
+    //                     replace_newest,
+    //                     autoscroll,
+    //                     cx,
+    //                 );
+    //                 self.select_next_state = Some(select_state);
+    //             } else {
+    //                 let query = buffer
+    //                     .text_for_range(selection.start..selection.end)
+    //                     .collect::<String>();
+    //                 self.select_next_state = Some(SelectNextState {
+    //                     query: AhoCorasick::new(&[query])?,
+    //                     wordwise: false,
+    //                     done: false,
+    //                 });
+    //                 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
+    //             }
+    //         }
+    //         Ok(())
+    //     }
+
+    //     pub fn select_all_matches(
+    //         &mut self,
+    //         action: &SelectAllMatches,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Result<()> {
+    //         self.push_to_selection_history();
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+
+    //         loop {
+    //             self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
+
+    //             if self
+    //                 .select_next_state
+    //                 .as_ref()
+    //                 .map(|selection_state| selection_state.done)
+    //                 .unwrap_or(true)
+    //             {
+    //                 break;
+    //             }
+    //         }
+
+    //         Ok(())
+    //     }
+
+    //     pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
+    //         self.push_to_selection_history();
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         self.select_next_match_internal(
+    //             &display_map,
+    //             action.replace_newest,
+    //             Some(Autoscroll::newest()),
+    //             cx,
+    //         )?;
+    //         Ok(())
+    //     }
+
+    //     pub fn select_previous(
+    //         &mut self,
+    //         action: &SelectPrevious,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Result<()> {
+    //         self.push_to_selection_history();
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = &display_map.buffer_snapshot;
+    //         let mut selections = self.selections.all::<usize>(cx);
+    //         if let Some(mut select_prev_state) = self.select_prev_state.take() {
+    //             let query = &select_prev_state.query;
+    //             if !select_prev_state.done {
+    //                 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
+    //                 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
+    //                 let mut next_selected_range = None;
+    //                 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
+    //                 let bytes_before_last_selection =
+    //                     buffer.reversed_bytes_in_range(0..last_selection.start);
+    //                 let bytes_after_first_selection =
+    //                     buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
+    //                 let query_matches = query
+    //                     .stream_find_iter(bytes_before_last_selection)
+    //                     .map(|result| (last_selection.start, result))
+    //                     .chain(
+    //                         query
+    //                             .stream_find_iter(bytes_after_first_selection)
+    //                             .map(|result| (buffer.len(), result)),
+    //                     );
+    //                 for (end_offset, query_match) in query_matches {
+    //                     let query_match = query_match.unwrap(); // can only fail due to I/O
+    //                     let offset_range =
+    //                         end_offset - query_match.end()..end_offset - query_match.start();
+    //                     let display_range = offset_range.start.to_display_point(&display_map)
+    //                         ..offset_range.end.to_display_point(&display_map);
+
+    //                     if !select_prev_state.wordwise
+    //                         || (!movement::is_inside_word(&display_map, display_range.start)
+    //                             && !movement::is_inside_word(&display_map, display_range.end))
+    //                     {
+    //                         next_selected_range = Some(offset_range);
+    //                         break;
+    //                     }
+    //                 }
+
+    //                 if let Some(next_selected_range) = next_selected_range {
+    //                     self.unfold_ranges([next_selected_range.clone()], false, true, cx);
+    //                     self.change_selections(Some(Autoscroll::newest()), cx, |s| {
+    //                         if action.replace_newest {
+    //                             s.delete(s.newest_anchor().id);
+    //                         }
+    //                         s.insert_range(next_selected_range);
+    //                     });
+    //                 } else {
+    //                     select_prev_state.done = true;
+    //                 }
+    //             }
+
+    //             self.select_prev_state = Some(select_prev_state);
+    //         } else if selections.len() == 1 {
+    //             let selection = selections.last_mut().unwrap();
+    //             if selection.start == selection.end {
+    //                 let word_range = movement::surrounding_word(
+    //                     &display_map,
+    //                     selection.start.to_display_point(&display_map),
+    //                 );
+    //                 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
+    //                 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
+    //                 selection.goal = SelectionGoal::None;
+    //                 selection.reversed = false;
+
+    //                 let query = buffer
+    //                     .text_for_range(selection.start..selection.end)
+    //                     .collect::<String>();
+    //                 let query = query.chars().rev().collect::<String>();
+    //                 let select_state = SelectNextState {
+    //                     query: AhoCorasick::new(&[query])?,
+    //                     wordwise: true,
+    //                     done: false,
+    //                 };
+    //                 self.unfold_ranges([selection.start..selection.end], false, true, cx);
+    //                 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
+    //                     s.select(selections);
+    //                 });
+    //                 self.select_prev_state = Some(select_state);
+    //             } else {
+    //                 let query = buffer
+    //                     .text_for_range(selection.start..selection.end)
+    //                     .collect::<String>();
+    //                 let query = query.chars().rev().collect::<String>();
+    //                 self.select_prev_state = Some(SelectNextState {
+    //                     query: AhoCorasick::new(&[query])?,
+    //                     wordwise: false,
+    //                     done: false,
+    //                 });
+    //                 self.select_previous(action, cx)?;
+    //             }
+    //         }
+    //         Ok(())
+    //     }
+
+    //     pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
+    //         let text_layout_details = &self.text_layout_details(cx);
+    //         self.transact(cx, |this, cx| {
+    //             let mut selections = this.selections.all::<Point>(cx);
+    //             let mut edits = Vec::new();
+    //             let mut selection_edit_ranges = Vec::new();
+    //             let mut last_toggled_row = None;
+    //             let snapshot = this.buffer.read(cx).read(cx);
+    //             let empty_str: Arc<str> = "".into();
+    //             let mut suffixes_inserted = Vec::new();
+
+    //             fn comment_prefix_range(
+    //                 snapshot: &MultiBufferSnapshot,
+    //                 row: u32,
+    //                 comment_prefix: &str,
+    //                 comment_prefix_whitespace: &str,
+    //             ) -> Range<Point> {
+    //                 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
+
+    //                 let mut line_bytes = snapshot
+    //                     .bytes_in_range(start..snapshot.max_point())
+    //                     .flatten()
+    //                     .copied();
+
+    //                 // If this line currently begins with the line comment prefix, then record
+    //                 // the range containing the prefix.
+    //                 if line_bytes
+    //                     .by_ref()
+    //                     .take(comment_prefix.len())
+    //                     .eq(comment_prefix.bytes())
+    //                 {
+    //                     // Include any whitespace that matches the comment prefix.
+    //                     let matching_whitespace_len = line_bytes
+    //                         .zip(comment_prefix_whitespace.bytes())
+    //                         .take_while(|(a, b)| a == b)
+    //                         .count() as u32;
+    //                     let end = Point::new(
+    //                         start.row,
+    //                         start.column + comment_prefix.len() as u32 + matching_whitespace_len,
+    //                     );
+    //                     start..end
+    //                 } else {
+    //                     start..start
+    //                 }
+    //             }
+
+    //             fn comment_suffix_range(
+    //                 snapshot: &MultiBufferSnapshot,
+    //                 row: u32,
+    //                 comment_suffix: &str,
+    //                 comment_suffix_has_leading_space: bool,
+    //             ) -> Range<Point> {
+    //                 let end = Point::new(row, snapshot.line_len(row));
+    //                 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
+
+    //                 let mut line_end_bytes = snapshot
+    //                     .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
+    //                     .flatten()
+    //                     .copied();
+
+    //                 let leading_space_len = if suffix_start_column > 0
+    //                     && line_end_bytes.next() == Some(b' ')
+    //                     && comment_suffix_has_leading_space
+    //                 {
+    //                     1
+    //                 } else {
+    //                     0
+    //                 };
+
+    //                 // If this line currently begins with the line comment prefix, then record
+    //                 // the range containing the prefix.
+    //                 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
+    //                     let start = Point::new(end.row, suffix_start_column - leading_space_len);
+    //                     start..end
+    //                 } else {
+    //                     end..end
+    //                 }
+    //             }
+
+    //             // TODO: Handle selections that cross excerpts
+    //             for selection in &mut selections {
+    //                 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
+    //                 let language = if let Some(language) =
+    //                     snapshot.language_scope_at(Point::new(selection.start.row, start_column))
+    //                 {
+    //                     language
+    //                 } else {
+    //                     continue;
+    //                 };
+
+    //                 selection_edit_ranges.clear();
+
+    //                 // If multiple selections contain a given row, avoid processing that
+    //                 // row more than once.
+    //                 let mut start_row = selection.start.row;
+    //                 if last_toggled_row == Some(start_row) {
+    //                     start_row += 1;
+    //                 }
+    //                 let end_row =
+    //                     if selection.end.row > selection.start.row && selection.end.column == 0 {
+    //                         selection.end.row - 1
+    //                     } else {
+    //                         selection.end.row
+    //                     };
+    //                 last_toggled_row = Some(end_row);
+
+    //                 if start_row > end_row {
+    //                     continue;
+    //                 }
+
+    //                 // If the language has line comments, toggle those.
+    //                 if let Some(full_comment_prefix) = language.line_comment_prefix() {
+    //                     // Split the comment prefix's trailing whitespace into a separate string,
+    //                     // as that portion won't be used for detecting if a line is a comment.
+    //                     let comment_prefix = full_comment_prefix.trim_end_matches(' ');
+    //                     let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
+    //                     let mut all_selection_lines_are_comments = true;
+
+    //                     for row in start_row..=end_row {
+    //                         if snapshot.is_line_blank(row) && start_row < end_row {
+    //                             continue;
+    //                         }
+
+    //                         let prefix_range = comment_prefix_range(
+    //                             snapshot.deref(),
+    //                             row,
+    //                             comment_prefix,
+    //                             comment_prefix_whitespace,
+    //                         );
+    //                         if prefix_range.is_empty() {
+    //                             all_selection_lines_are_comments = false;
+    //                         }
+    //                         selection_edit_ranges.push(prefix_range);
+    //                     }
+
+    //                     if all_selection_lines_are_comments {
+    //                         edits.extend(
+    //                             selection_edit_ranges
+    //                                 .iter()
+    //                                 .cloned()
+    //                                 .map(|range| (range, empty_str.clone())),
+    //                         );
+    //                     } else {
+    //                         let min_column = selection_edit_ranges
+    //                             .iter()
+    //                             .map(|r| r.start.column)
+    //                             .min()
+    //                             .unwrap_or(0);
+    //                         edits.extend(selection_edit_ranges.iter().map(|range| {
+    //                             let position = Point::new(range.start.row, min_column);
+    //                             (position..position, full_comment_prefix.clone())
+    //                         }));
+    //                     }
+    //                 } else if let Some((full_comment_prefix, comment_suffix)) =
+    //                     language.block_comment_delimiters()
+    //                 {
+    //                     let comment_prefix = full_comment_prefix.trim_end_matches(' ');
+    //                     let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
+    //                     let prefix_range = comment_prefix_range(
+    //                         snapshot.deref(),
+    //                         start_row,
+    //                         comment_prefix,
+    //                         comment_prefix_whitespace,
+    //                     );
+    //                     let suffix_range = comment_suffix_range(
+    //                         snapshot.deref(),
+    //                         end_row,
+    //                         comment_suffix.trim_start_matches(' '),
+    //                         comment_suffix.starts_with(' '),
+    //                     );
+
+    //                     if prefix_range.is_empty() || suffix_range.is_empty() {
+    //                         edits.push((
+    //                             prefix_range.start..prefix_range.start,
+    //                             full_comment_prefix.clone(),
+    //                         ));
+    //                         edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
+    //                         suffixes_inserted.push((end_row, comment_suffix.len()));
+    //                     } else {
+    //                         edits.push((prefix_range, empty_str.clone()));
+    //                         edits.push((suffix_range, empty_str.clone()));
+    //                     }
+    //                 } else {
+    //                     continue;
+    //                 }
+    //             }
+
+    //             drop(snapshot);
+    //             this.buffer.update(cx, |buffer, cx| {
+    //                 buffer.edit(edits, None, cx);
+    //             });
+
+    //             // Adjust selections so that they end before any comment suffixes that
+    //             // were inserted.
+    //             let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
+    //             let mut selections = this.selections.all::<Point>(cx);
+    //             let snapshot = this.buffer.read(cx).read(cx);
+    //             for selection in &mut selections {
+    //                 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
+    //                     match row.cmp(&selection.end.row) {
+    //                         Ordering::Less => {
+    //                             suffixes_inserted.next();
+    //                             continue;
+    //                         }
+    //                         Ordering::Greater => break,
+    //                         Ordering::Equal => {
+    //                             if selection.end.column == snapshot.line_len(row) {
+    //                                 if selection.is_empty() {
+    //                                     selection.start.column -= suffix_len as u32;
+    //                                 }
+    //                                 selection.end.column -= suffix_len as u32;
+    //                             }
+    //                             break;
+    //                         }
+    //                     }
+    //                 }
+    //             }
+
+    //             drop(snapshot);
+    //             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+
+    //             let selections = this.selections.all::<Point>(cx);
+    //             let selections_on_single_row = selections.windows(2).all(|selections| {
+    //                 selections[0].start.row == selections[1].start.row
+    //                     && selections[0].end.row == selections[1].end.row
+    //                     && selections[0].start.row == selections[0].end.row
+    //             });
+    //             let selections_selecting = selections
+    //                 .iter()
+    //                 .any(|selection| selection.start != selection.end);
+    //             let advance_downwards = action.advance_downwards
+    //                 && selections_on_single_row
+    //                 && !selections_selecting
+    //                 && this.mode != EditorMode::SingleLine;
+
+    //             if advance_downwards {
+    //                 let snapshot = this.buffer.read(cx).snapshot(cx);
+
+    //                 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                     s.move_cursors_with(|display_snapshot, display_point, _| {
+    //                         let mut point = display_point.to_point(display_snapshot);
+    //                         point.row += 1;
+    //                         point = snapshot.clip_point(point, Bias::Left);
+    //                         let display_point = point.to_display_point(display_snapshot);
+    //                         let goal = SelectionGoal::HorizontalPosition(
+    //                             display_snapshot.x_for_point(display_point, &text_layout_details),
+    //                         );
+    //                         (display_point, goal)
+    //                     })
+    //                 });
+    //             }
+    //         });
+    //     }
+
+    //     pub fn select_larger_syntax_node(
+    //         &mut self,
+    //         _: &SelectLargerSyntaxNode,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+    //         let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
+
+    //         let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
+    //         let mut selected_larger_node = false;
+    //         let new_selections = old_selections
+    //             .iter()
+    //             .map(|selection| {
+    //                 let old_range = selection.start..selection.end;
+    //                 let mut new_range = old_range.clone();
+    //                 while let Some(containing_range) =
+    //                     buffer.range_for_syntax_ancestor(new_range.clone())
+    //                 {
+    //                     new_range = containing_range;
+    //                     if !display_map.intersects_fold(new_range.start)
+    //                         && !display_map.intersects_fold(new_range.end)
+    //                     {
+    //                         break;
+    //                     }
+    //                 }
+
+    //                 selected_larger_node |= new_range != old_range;
+    //                 Selection {
+    //                     id: selection.id,
+    //                     start: new_range.start,
+    //                     end: new_range.end,
+    //                     goal: SelectionGoal::None,
+    //                     reversed: selection.reversed,
+    //                 }
+    //             })
+    //             .collect::<Vec<_>>();
+
+    //         if selected_larger_node {
+    //             stack.push(old_selections);
+    //             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(new_selections);
+    //             });
+    //         }
+    //         self.select_larger_syntax_node_stack = stack;
+    //     }
+
+    //     pub fn select_smaller_syntax_node(
+    //         &mut self,
+    //         _: &SelectSmallerSyntaxNode,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
+    //         if let Some(selections) = stack.pop() {
+    //             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 s.select(selections.to_vec());
+    //             });
+    //         }
+    //         self.select_larger_syntax_node_stack = stack;
+    //     }
+
+    //     pub fn move_to_enclosing_bracket(
+    //         &mut self,
+    //         _: &MoveToEnclosingBracket,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //             s.move_offsets_with(|snapshot, selection| {
+    //                 let Some(enclosing_bracket_ranges) =
+    //                     snapshot.enclosing_bracket_ranges(selection.start..selection.end)
+    //                 else {
+    //                     return;
+    //                 };
+
+    //                 let mut best_length = usize::MAX;
+    //                 let mut best_inside = false;
+    //                 let mut best_in_bracket_range = false;
+    //                 let mut best_destination = None;
+    //                 for (open, close) in enclosing_bracket_ranges {
+    //                     let close = close.to_inclusive();
+    //                     let length = close.end() - open.start;
+    //                     let inside = selection.start >= open.end && selection.end <= *close.start();
+    //                     let in_bracket_range = open.to_inclusive().contains(&selection.head())
+    //                         || close.contains(&selection.head());
+
+    //                     // If best is next to a bracket and current isn't, skip
+    //                     if !in_bracket_range && best_in_bracket_range {
+    //                         continue;
+    //                     }
+
+    //                     // Prefer smaller lengths unless best is inside and current isn't
+    //                     if length > best_length && (best_inside || !inside) {
+    //                         continue;
+    //                     }
+
+    //                     best_length = length;
+    //                     best_inside = inside;
+    //                     best_in_bracket_range = in_bracket_range;
+    //                     best_destination = Some(
+    //                         if close.contains(&selection.start) && close.contains(&selection.end) {
+    //                             if inside {
+    //                                 open.end
+    //                             } else {
+    //                                 open.start
+    //                             }
+    //                         } else {
+    //                             if inside {
+    //                                 *close.start()
+    //                             } else {
+    //                                 *close.end()
+    //                             }
+    //                         },
+    //                     );
+    //                 }
+
+    //                 if let Some(destination) = best_destination {
+    //                     selection.collapse_to(destination, SelectionGoal::None);
+    //                 }
+    //             })
+    //         });
+    //     }
+
+    //     pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
+    //         self.end_selection(cx);
+    //         self.selection_history.mode = SelectionHistoryMode::Undoing;
+    //         if let Some(entry) = self.selection_history.undo_stack.pop_back() {
+    //             self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
+    //             self.select_next_state = entry.select_next_state;
+    //             self.select_prev_state = entry.select_prev_state;
+    //             self.add_selections_state = entry.add_selections_state;
+    //             self.request_autoscroll(Autoscroll::newest(), cx);
+    //         }
+    //         self.selection_history.mode = SelectionHistoryMode::Normal;
+    //     }
+
+    //     pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
+    //         self.end_selection(cx);
+    //         self.selection_history.mode = SelectionHistoryMode::Redoing;
+    //         if let Some(entry) = self.selection_history.redo_stack.pop_back() {
+    //             self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
+    //             self.select_next_state = entry.select_next_state;
+    //             self.select_prev_state = entry.select_prev_state;
+    //             self.add_selections_state = entry.add_selections_state;
+    //             self.request_autoscroll(Autoscroll::newest(), cx);
+    //         }
+    //         self.selection_history.mode = SelectionHistoryMode::Normal;
+    //     }
+
+    //     fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
+    //         self.go_to_diagnostic_impl(Direction::Next, cx)
+    //     }
+
+    //     fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
+    //         self.go_to_diagnostic_impl(Direction::Prev, cx)
+    //     }
+
+    //     pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
+    //         let buffer = self.buffer.read(cx).snapshot(cx);
+    //         let selection = self.selections.newest::<usize>(cx);
+
+    //         // If there is an active Diagnostic Popover. Jump to it's diagnostic instead.
+    //         if direction == Direction::Next {
+    //             if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
+    //                 let (group_id, jump_to) = popover.activation_info();
+    //                 if self.activate_diagnostics(group_id, cx) {
+    //                     self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                         let mut new_selection = s.newest_anchor().clone();
+    //                         new_selection.collapse_to(jump_to, SelectionGoal::None);
+    //                         s.select_anchors(vec![new_selection.clone()]);
+    //                     });
+    //                 }
+    //                 return;
+    //             }
+    //         }
+
+    //         let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
+    //             active_diagnostics
+    //                 .primary_range
+    //                 .to_offset(&buffer)
+    //                 .to_inclusive()
+    //         });
+    //         let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
+    //             if active_primary_range.contains(&selection.head()) {
+    //                 *active_primary_range.end()
+    //             } else {
+    //                 selection.head()
+    //             }
+    //         } else {
+    //             selection.head()
+    //         };
+
+    //         loop {
+    //             let mut diagnostics = if direction == Direction::Prev {
+    //                 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
+    //             } else {
+    //                 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
+    //             };
+    //             let group = diagnostics.find_map(|entry| {
+    //                 if entry.diagnostic.is_primary
+    //                     && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
+    //                     && !entry.range.is_empty()
+    //                     && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
+    //                     && !entry.range.contains(&search_start)
+    //                 {
+    //                     Some((entry.range, entry.diagnostic.group_id))
+    //                 } else {
+    //                     None
+    //                 }
+    //             });
+
+    //             if let Some((primary_range, group_id)) = group {
+    //                 if self.activate_diagnostics(group_id, cx) {
+    //                     self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                         s.select(vec![Selection {
+    //                             id: selection.id,
+    //                             start: primary_range.start,
+    //                             end: primary_range.start,
+    //                             reversed: false,
+    //                             goal: SelectionGoal::None,
+    //                         }]);
+    //                     });
+    //                 }
+    //                 break;
+    //             } else {
+    //                 // Cycle around to the start of the buffer, potentially moving back to the start of
+    //                 // the currently active diagnostic.
+    //                 active_primary_range.take();
+    //                 if direction == Direction::Prev {
+    //                     if search_start == buffer.len() {
+    //                         break;
+    //                     } else {
+    //                         search_start = buffer.len();
+    //                     }
+    //                 } else if search_start == 0 {
+    //                     break;
+    //                 } else {
+    //                     search_start = 0;
+    //                 }
+    //             }
+    //         }
+    //     }
+
+    //     fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
+    //         let snapshot = self
+    //             .display_map
+    //             .update(cx, |display_map, cx| display_map.snapshot(cx));
+    //         let selection = self.selections.newest::<Point>(cx);
+
+    //         if !self.seek_in_direction(
+    //             &snapshot,
+    //             selection.head(),
+    //             false,
+    //             snapshot
+    //                 .buffer_snapshot
+    //                 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
+    //             cx,
+    //         ) {
+    //             let wrapped_point = Point::zero();
+    //             self.seek_in_direction(
+    //                 &snapshot,
+    //                 wrapped_point,
+    //                 true,
+    //                 snapshot
+    //                     .buffer_snapshot
+    //                     .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
+    //                 cx,
+    //             );
+    //         }
+    //     }
+
+    //     fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
+    //         let snapshot = self
+    //             .display_map
+    //             .update(cx, |display_map, cx| display_map.snapshot(cx));
+    //         let selection = self.selections.newest::<Point>(cx);
+
+    //         if !self.seek_in_direction(
+    //             &snapshot,
+    //             selection.head(),
+    //             false,
+    //             snapshot
+    //                 .buffer_snapshot
+    //                 .git_diff_hunks_in_range_rev(0..selection.head().row),
+    //             cx,
+    //         ) {
+    //             let wrapped_point = snapshot.buffer_snapshot.max_point();
+    //             self.seek_in_direction(
+    //                 &snapshot,
+    //                 wrapped_point,
+    //                 true,
+    //                 snapshot
+    //                     .buffer_snapshot
+    //                     .git_diff_hunks_in_range_rev(0..wrapped_point.row),
+    //                 cx,
+    //             );
+    //         }
+    //     }
+
+    //     fn seek_in_direction(
+    //         &mut self,
+    //         snapshot: &DisplaySnapshot,
+    //         initial_point: Point,
+    //         is_wrapped: bool,
+    //         hunks: impl Iterator<Item = DiffHunk<u32>>,
+    //         cx: &mut ViewContext<Editor>,
+    //     ) -> bool {
+    //         let display_point = initial_point.to_display_point(snapshot);
+    //         let mut hunks = hunks
+    //             .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
+    //             .filter(|hunk| {
+    //                 if is_wrapped {
+    //                     true
+    //                 } else {
+    //                     !hunk.contains_display_row(display_point.row())
+    //                 }
+    //             })
+    //             .dedup();
+
+    //         if let Some(hunk) = hunks.next() {
+    //             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                 let row = hunk.start_display_row();
+    //                 let point = DisplayPoint::new(row, 0);
+    //                 s.select_display_ranges([point..point]);
+    //             });
+
+    //             true
+    //         } else {
+    //             false
+    //         }
+    //     }
+
+    //     pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
+    //         self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
+    //     }
+
+    //     pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
+    //         self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
+    //     }
+
+    //     pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
+    //         self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
+    //     }
+
+    //     pub fn go_to_type_definition_split(
+    //         &mut self,
+    //         _: &GoToTypeDefinitionSplit,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
+    //     }
+
+    //     fn go_to_definition_of_kind(
+    //         &mut self,
+    //         kind: GotoDefinitionKind,
+    //         split: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let Some(workspace) = self.workspace(cx) else {
+    //             return;
+    //         };
+    //         let buffer = self.buffer.read(cx);
+    //         let head = self.selections.newest::<usize>(cx).head();
+    //         let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
+    //             text_anchor
+    //         } else {
+    //             return;
+    //         };
+
+    //         let project = workspace.read(cx).project().clone();
+    //         let definitions = project.update(cx, |project, cx| match kind {
+    //             GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
+    //             GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
+    //         });
+
+    //         cx.spawn_labeled("Fetching Definition...", |editor, mut cx| async move {
+    //             let definitions = definitions.await?;
+    //             editor.update(&mut cx, |editor, cx| {
+    //                 editor.navigate_to_definitions(
+    //                     definitions
+    //                         .into_iter()
+    //                         .map(GoToDefinitionLink::Text)
+    //                         .collect(),
+    //                     split,
+    //                     cx,
+    //                 );
+    //             })?;
+    //             Ok::<(), anyhow::Error>(())
+    //         })
+    //         .detach_and_log_err(cx);
+    //     }
+
+    //     pub fn navigate_to_definitions(
+    //         &mut self,
+    //         mut definitions: Vec<GoToDefinitionLink>,
+    //         split: bool,
+    //         cx: &mut ViewContext<Editor>,
+    //     ) {
+    //         let Some(workspace) = self.workspace(cx) else {
+    //             return;
+    //         };
+    //         let pane = workspace.read(cx).active_pane().clone();
+    //         // If there is one definition, just open it directly
+    //         if definitions.len() == 1 {
+    //             let definition = definitions.pop().unwrap();
+    //             let target_task = match definition {
+    //                 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
+    //                 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
+    //                     self.compute_target_location(lsp_location, server_id, cx)
+    //                 }
+    //             };
+    //             cx.spawn(|editor, mut cx| async move {
+    //                 let target = target_task.await.context("target resolution task")?;
+    //                 if let Some(target) = target {
+    //                     editor.update(&mut cx, |editor, cx| {
+    //                         let range = target.range.to_offset(target.buffer.read(cx));
+    //                         let range = editor.range_for_match(&range);
+    //                         if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
+    //                             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
+    //                                 s.select_ranges([range]);
+    //                             });
+    //                         } else {
+    //                             cx.window_context().defer(move |cx| {
+    //                                 let target_editor: ViewHandle<Self> =
+    //                                     workspace.update(cx, |workspace, cx| {
+    //                                         if split {
+    //                                             workspace.split_project_item(target.buffer.clone(), cx)
+    //                                         } else {
+    //                                             workspace.open_project_item(target.buffer.clone(), cx)
+    //                                         }
+    //                                     });
+    //                                 target_editor.update(cx, |target_editor, cx| {
+    //                                     // When selecting a definition in a different buffer, disable the nav history
+    //                                     // to avoid creating a history entry at the previous cursor location.
+    //                                     pane.update(cx, |pane, _| pane.disable_history());
+    //                                     target_editor.change_selections(
+    //                                         Some(Autoscroll::fit()),
+    //                                         cx,
+    //                                         |s| {
+    //                                             s.select_ranges([range]);
+    //                                         },
+    //                                     );
+    //                                     pane.update(cx, |pane, _| pane.enable_history());
+    //                                 });
+    //                             });
+    //                         }
+    //                     })
+    //                 } else {
+    //                     Ok(())
+    //                 }
+    //             })
+    //             .detach_and_log_err(cx);
+    //         } else if !definitions.is_empty() {
+    //             let replica_id = self.replica_id(cx);
+    //             cx.spawn(|editor, mut cx| async move {
+    //                 let (title, location_tasks) = editor
+    //                     .update(&mut cx, |editor, cx| {
+    //                         let title = definitions
+    //                             .iter()
+    //                             .find_map(|definition| match definition {
+    //                                 GoToDefinitionLink::Text(link) => {
+    //                                     link.origin.as_ref().map(|origin| {
+    //                                         let buffer = origin.buffer.read(cx);
+    //                                         format!(
+    //                                             "Definitions for {}",
+    //                                             buffer
+    //                                                 .text_for_range(origin.range.clone())
+    //                                                 .collect::<String>()
+    //                                         )
+    //                                     })
+    //                                 }
+    //                                 GoToDefinitionLink::InlayHint(_, _) => None,
+    //                             })
+    //                             .unwrap_or("Definitions".to_string());
+    //                         let location_tasks = definitions
+    //                             .into_iter()
+    //                             .map(|definition| match definition {
+    //                                 GoToDefinitionLink::Text(link) => {
+    //                                     Task::Ready(Some(Ok(Some(link.target))))
+    //                                 }
+    //                                 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
+    //                                     editor.compute_target_location(lsp_location, server_id, cx)
+    //                                 }
+    //                             })
+    //                             .collect::<Vec<_>>();
+    //                         (title, location_tasks)
+    //                     })
+    //                     .context("location tasks preparation")?;
+
+    //                 let locations = futures::future::join_all(location_tasks)
+    //                     .await
+    //                     .into_iter()
+    //                     .filter_map(|location| location.transpose())
+    //                     .collect::<Result<_>>()
+    //                     .context("location tasks")?;
+    //                 workspace.update(&mut cx, |workspace, cx| {
+    //                     Self::open_locations_in_multibuffer(
+    //                         workspace, locations, replica_id, title, split, cx,
+    //                     )
+    //                 });
+
+    //                 anyhow::Ok(())
+    //             })
+    //             .detach_and_log_err(cx);
+    //         }
+    //     }
+
+    //     fn compute_target_location(
+    //         &self,
+    //         lsp_location: lsp::Location,
+    //         server_id: LanguageServerId,
+    //         cx: &mut ViewContext<Editor>,
+    //     ) -> Task<anyhow::Result<Option<Location>>> {
+    //         let Some(project) = self.project.clone() else {
+    //             return Task::Ready(Some(Ok(None)));
+    //         };
+
+    //         cx.spawn(move |editor, mut cx| async move {
+    //             let location_task = editor.update(&mut cx, |editor, cx| {
+    //                 project.update(cx, |project, cx| {
+    //                     let language_server_name =
+    //                         editor.buffer.read(cx).as_singleton().and_then(|buffer| {
+    //                             project
+    //                                 .language_server_for_buffer(buffer.read(cx), server_id, cx)
+    //                                 .map(|(_, lsp_adapter)| {
+    //                                     LanguageServerName(Arc::from(lsp_adapter.name()))
+    //                                 })
+    //                         });
+    //                     language_server_name.map(|language_server_name| {
+    //                         project.open_local_buffer_via_lsp(
+    //                             lsp_location.uri.clone(),
+    //                             server_id,
+    //                             language_server_name,
+    //                             cx,
+    //                         )
+    //                     })
+    //                 })
+    //             })?;
+    //             let location = match location_task {
+    //                 Some(task) => Some({
+    //                     let target_buffer_handle = task.await.context("open local buffer")?;
+    //                     let range = {
+    //                         target_buffer_handle.update(&mut cx, |target_buffer, _| {
+    //                             let target_start = target_buffer.clip_point_utf16(
+    //                                 point_from_lsp(lsp_location.range.start),
+    //                                 Bias::Left,
+    //                             );
+    //                             let target_end = target_buffer.clip_point_utf16(
+    //                                 point_from_lsp(lsp_location.range.end),
+    //                                 Bias::Left,
+    //                             );
+    //                             target_buffer.anchor_after(target_start)
+    //                                 ..target_buffer.anchor_before(target_end)
+    //                         })
+    //                     };
+    //                     Location {
+    //                         buffer: target_buffer_handle,
+    //                         range,
+    //                     }
+    //                 }),
+    //                 None => None,
+    //             };
+    //             Ok(location)
+    //         })
+    //     }
+
+    //     pub fn find_all_references(
+    //         workspace: &mut Workspace,
+    //         _: &FindAllReferences,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) -> Option<Task<Result<()>>> {
+    //         let active_item = workspace.active_item(cx)?;
+    //         let editor_handle = active_item.act_as::<Self>(cx)?;
+
+    //         let editor = editor_handle.read(cx);
+    //         let buffer = editor.buffer.read(cx);
+    //         let head = editor.selections.newest::<usize>(cx).head();
+    //         let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
+    //         let replica_id = editor.replica_id(cx);
+
+    //         let project = workspace.project().clone();
+    //         let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
+    //         Some(cx.spawn_labeled(
+    //             "Finding All References...",
+    //             |workspace, mut cx| async move {
+    //                 let locations = references.await?;
+    //                 if locations.is_empty() {
+    //                     return Ok(());
+    //                 }
+
+    //                 workspace.update(&mut cx, |workspace, cx| {
+    //                     let title = locations
+    //                         .first()
+    //                         .as_ref()
+    //                         .map(|location| {
+    //                             let buffer = location.buffer.read(cx);
+    //                             format!(
+    //                                 "References to `{}`",
+    //                                 buffer
+    //                                     .text_for_range(location.range.clone())
+    //                                     .collect::<String>()
+    //                             )
+    //                         })
+    //                         .unwrap();
+    //                     Self::open_locations_in_multibuffer(
+    //                         workspace, locations, replica_id, title, false, cx,
+    //                     );
+    //                 })?;
+
+    //                 Ok(())
+    //             },
+    //         ))
+    //     }
+
+    //     /// Opens a multibuffer with the given project locations in it
+    //     pub fn open_locations_in_multibuffer(
+    //         workspace: &mut Workspace,
+    //         mut locations: Vec<Location>,
+    //         replica_id: ReplicaId,
+    //         title: String,
+    //         split: bool,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) {
+    //         // If there are multiple definitions, open them in a multibuffer
+    //         locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
+    //         let mut locations = locations.into_iter().peekable();
+    //         let mut ranges_to_highlight = Vec::new();
+
+    //         let excerpt_buffer = cx.add_model(|cx| {
+    //             let mut multibuffer = MultiBuffer::new(replica_id);
+    //             while let Some(location) = locations.next() {
+    //                 let buffer = location.buffer.read(cx);
+    //                 let mut ranges_for_buffer = Vec::new();
+    //                 let range = location.range.to_offset(buffer);
+    //                 ranges_for_buffer.push(range.clone());
+
+    //                 while let Some(next_location) = locations.peek() {
+    //                     if next_location.buffer == location.buffer {
+    //                         ranges_for_buffer.push(next_location.range.to_offset(buffer));
+    //                         locations.next();
+    //                     } else {
+    //                         break;
+    //                     }
+    //                 }
+
+    //                 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
+    //                 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
+    //                     location.buffer.clone(),
+    //                     ranges_for_buffer,
+    //                     1,
+    //                     cx,
+    //                 ))
+    //             }
+
+    //             multibuffer.with_title(title)
+    //         });
+
+    //         let editor = cx.add_view(|cx| {
+    //             Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
+    //         });
+    //         editor.update(cx, |editor, cx| {
+    //             editor.highlight_background::<Self>(
+    //                 ranges_to_highlight,
+    //                 |theme| theme.editor.highlighted_line_background,
+    //                 cx,
+    //             );
+    //         });
+    //         if split {
+    //             workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
+    //         } else {
+    //             workspace.add_item(Box::new(editor), cx);
+    //         }
+    //     }
+
+    //     pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
+    //         use language::ToOffset as _;
+
+    //         let project = self.project.clone()?;
+    //         let selection = self.selections.newest_anchor().clone();
+    //         let (cursor_buffer, cursor_buffer_position) = self
+    //             .buffer
+    //             .read(cx)
+    //             .text_anchor_for_position(selection.head(), cx)?;
+    //         let (tail_buffer, _) = self
+    //             .buffer
+    //             .read(cx)
+    //             .text_anchor_for_position(selection.tail(), cx)?;
+    //         if tail_buffer != cursor_buffer {
+    //             return None;
+    //         }
+
+    //         let snapshot = cursor_buffer.read(cx).snapshot();
+    //         let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
+    //         let prepare_rename = project.update(cx, |project, cx| {
+    //             project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
+    //         });
+
+    //         Some(cx.spawn(|this, mut cx| async move {
+    //             let rename_range = if let Some(range) = prepare_rename.await? {
+    //                 Some(range)
+    //             } else {
+    //                 this.update(&mut cx, |this, cx| {
+    //                     let buffer = this.buffer.read(cx).snapshot(cx);
+    //                     let mut buffer_highlights = this
+    //                         .document_highlights_for_position(selection.head(), &buffer)
+    //                         .filter(|highlight| {
+    //                             highlight.start.excerpt_id == selection.head().excerpt_id
+    //                                 && highlight.end.excerpt_id == selection.head().excerpt_id
+    //                         });
+    //                     buffer_highlights
+    //                         .next()
+    //                         .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
+    //                 })?
+    //             };
+    //             if let Some(rename_range) = rename_range {
+    //                 let rename_buffer_range = rename_range.to_offset(&snapshot);
+    //                 let cursor_offset_in_rename_range =
+    //                     cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
+
+    //                 this.update(&mut cx, |this, cx| {
+    //                     this.take_rename(false, cx);
+    //                     let style = this.style(cx);
+    //                     let buffer = this.buffer.read(cx).read(cx);
+    //                     let cursor_offset = selection.head().to_offset(&buffer);
+    //                     let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
+    //                     let rename_end = rename_start + rename_buffer_range.len();
+    //                     let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
+    //                     let mut old_highlight_id = None;
+    //                     let old_name: Arc<str> = buffer
+    //                         .chunks(rename_start..rename_end, true)
+    //                         .map(|chunk| {
+    //                             if old_highlight_id.is_none() {
+    //                                 old_highlight_id = chunk.syntax_highlight_id;
+    //                             }
+    //                             chunk.text
+    //                         })
+    //                         .collect::<String>()
+    //                         .into();
+
+    //                     drop(buffer);
+
+    //                     // Position the selection in the rename editor so that it matches the current selection.
+    //                     this.show_local_selections = false;
+    //                     let rename_editor = cx.add_view(|cx| {
+    //                         let mut editor = Editor::single_line(None, cx);
+    //                         if let Some(old_highlight_id) = old_highlight_id {
+    //                             editor.override_text_style =
+    //                                 Some(Box::new(move |style| old_highlight_id.style(&style.syntax)));
+    //                         }
+    //                         editor.buffer.update(cx, |buffer, cx| {
+    //                             buffer.edit([(0..0, old_name.clone())], None, cx)
+    //                         });
+    //                         editor.select_all(&SelectAll, cx);
+    //                         editor
+    //                     });
+
+    //                     let ranges = this
+    //                         .clear_background_highlights::<DocumentHighlightWrite>(cx)
+    //                         .into_iter()
+    //                         .flat_map(|(_, ranges)| ranges.into_iter())
+    //                         .chain(
+    //                             this.clear_background_highlights::<DocumentHighlightRead>(cx)
+    //                                 .into_iter()
+    //                                 .flat_map(|(_, ranges)| ranges.into_iter()),
+    //                         )
+    //                         .collect();
+
+    //                     this.highlight_text::<Rename>(
+    //                         ranges,
+    //                         HighlightStyle {
+    //                             fade_out: Some(style.rename_fade),
+    //                             ..Default::default()
+    //                         },
+    //                         cx,
+    //                     );
+    //                     cx.focus(&rename_editor);
+    //                     let block_id = this.insert_blocks(
+    //                         [BlockProperties {
+    //                             style: BlockStyle::Flex,
+    //                             position: range.start.clone(),
+    //                             height: 1,
+    //                             render: Arc::new({
+    //                                 let editor = rename_editor.clone();
+    //                                 move |cx: &mut BlockContext| {
+    //                                     ChildView::new(&editor, cx)
+    //                                         .contained()
+    //                                         .with_padding_left(cx.anchor_x)
+    //                                         .into_any()
+    //                                 }
+    //                             }),
+    //                             disposition: BlockDisposition::Below,
+    //                         }],
+    //                         Some(Autoscroll::fit()),
+    //                         cx,
+    //                     )[0];
+    //                     this.pending_rename = Some(RenameState {
+    //                         range,
+    //                         old_name,
+    //                         editor: rename_editor,
+    //                         block_id,
+    //                     });
+    //                 })?;
+    //             }
+
+    //             Ok(())
+    //         }))
+    //     }
+
+    //     pub fn confirm_rename(
+    //         workspace: &mut Workspace,
+    //         _: &ConfirmRename,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) -> Option<Task<Result<()>>> {
+    //         let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
+
+    //         let (buffer, range, old_name, new_name) = editor.update(cx, |editor, cx| {
+    //             let rename = editor.take_rename(false, cx)?;
+    //             let buffer = editor.buffer.read(cx);
+    //             let (start_buffer, start) =
+    //                 buffer.text_anchor_for_position(rename.range.start.clone(), cx)?;
+    //             let (end_buffer, end) =
+    //                 buffer.text_anchor_for_position(rename.range.end.clone(), cx)?;
+    //             if start_buffer == end_buffer {
+    //                 let new_name = rename.editor.read(cx).text(cx);
+    //                 Some((start_buffer, start..end, rename.old_name, new_name))
+    //             } else {
+    //                 None
+    //             }
+    //         })?;
+
+    //         let rename = workspace.project().clone().update(cx, |project, cx| {
+    //             project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
+    //         });
+
+    //         let editor = editor.downgrade();
+    //         Some(cx.spawn(|workspace, mut cx| async move {
+    //             let project_transaction = rename.await?;
+    //             Self::open_project_transaction(
+    //                 &editor,
+    //                 workspace,
+    //                 project_transaction,
+    //                 format!("Rename: {} → {}", old_name, new_name),
+    //                 cx.clone(),
+    //             )
+    //             .await?;
+
+    //             editor.update(&mut cx, |editor, cx| {
+    //                 editor.refresh_document_highlights(cx);
+    //             })?;
+    //             Ok(())
+    //         }))
+    //     }
+
+    //     fn take_rename(
+    //         &mut self,
+    //         moving_cursor: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<RenameState> {
+    //         let rename = self.pending_rename.take()?;
+    //         self.remove_blocks(
+    //             [rename.block_id].into_iter().collect(),
+    //             Some(Autoscroll::fit()),
+    //             cx,
+    //         );
+    //         self.clear_highlights::<Rename>(cx);
+    //         self.show_local_selections = true;
+
+    //         if moving_cursor {
+    //             let rename_editor = rename.editor.read(cx);
+    //             let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
+
+    //             // Update the selection to match the position of the selection inside
+    //             // the rename editor.
+    //             let snapshot = self.buffer.read(cx).read(cx);
+    //             let rename_range = rename.range.to_offset(&snapshot);
+    //             let cursor_in_editor = snapshot
+    //                 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
+    //                 .min(rename_range.end);
+    //             drop(snapshot);
+
+    //             self.change_selections(None, cx, |s| {
+    //                 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
+    //             });
+    //         } else {
+    //             self.refresh_document_highlights(cx);
+    //         }
+
+    //         Some(rename)
+    //     }
+
+    //     #[cfg(any(test, feature = "test-support"))]
+    //     pub fn pending_rename(&self) -> Option<&RenameState> {
+    //         self.pending_rename.as_ref()
+    //     }
+
+    //     fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
+    //         let project = match &self.project {
+    //             Some(project) => project.clone(),
+    //             None => return None,
+    //         };
+
+    //         Some(self.perform_format(project, FormatTrigger::Manual, cx))
+    //     }
+
+    //     fn perform_format(
+    //         &mut self,
+    //         project: Model<Project>,
+    //         trigger: FormatTrigger,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Task<Result<()>> {
+    //         let buffer = self.buffer().clone();
+    //         let buffers = buffer.read(cx).all_buffers();
+
+    //         let mut timeout = cx.background().timer(FORMAT_TIMEOUT).fuse();
+    //         let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
+
+    //         cx.spawn(|_, mut cx| async move {
+    //             let transaction = futures::select_biased! {
+    //                 _ = timeout => {
+    //                     log::warn!("timed out waiting for formatting");
+    //                     None
+    //                 }
+    //                 transaction = format.log_err().fuse() => transaction,
+    //             };
+
+    //             buffer.update(&mut cx, |buffer, cx| {
+    //                 if let Some(transaction) = transaction {
+    //                     if !buffer.is_singleton() {
+    //                         buffer.push_transaction(&transaction.0, cx);
+    //                     }
+    //                 }
+
+    //                 cx.notify();
+    //             });
+
+    //             Ok(())
+    //         })
+    //     }
+
+    //     fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
+    //         if let Some(project) = self.project.clone() {
+    //             self.buffer.update(cx, |multi_buffer, cx| {
+    //                 project.update(cx, |project, cx| {
+    //                     project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
+    //                 });
+    //             })
+    //         }
+    //     }
+
+    //     fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
+    //         cx.show_character_palette();
+    //     }
+
+    //     fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
+    //         if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
+    //             let buffer = self.buffer.read(cx).snapshot(cx);
+    //             let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
+    //             let is_valid = buffer
+    //                 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
+    //                 .any(|entry| {
+    //                     entry.diagnostic.is_primary
+    //                         && !entry.range.is_empty()
+    //                         && entry.range.start == primary_range_start
+    //                         && entry.diagnostic.message == active_diagnostics.primary_message
+    //                 });
+
+    //             if is_valid != active_diagnostics.is_valid {
+    //                 active_diagnostics.is_valid = is_valid;
+    //                 let mut new_styles = HashMap::default();
+    //                 for (block_id, diagnostic) in &active_diagnostics.blocks {
+    //                     new_styles.insert(
+    //                         *block_id,
+    //                         diagnostic_block_renderer(diagnostic.clone(), is_valid),
+    //                     );
+    //                 }
+    //                 self.display_map
+    //                     .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
+    //             }
+    //         }
+    //     }
+
+    //     fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
+    //         self.dismiss_diagnostics(cx);
+    //         self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
+    //             let buffer = self.buffer.read(cx).snapshot(cx);
+
+    //             let mut primary_range = None;
+    //             let mut primary_message = None;
+    //             let mut group_end = Point::zero();
+    //             let diagnostic_group = buffer
+    //                 .diagnostic_group::<Point>(group_id)
+    //                 .map(|entry| {
+    //                     if entry.range.end > group_end {
+    //                         group_end = entry.range.end;
+    //                     }
+    //                     if entry.diagnostic.is_primary {
+    //                         primary_range = Some(entry.range.clone());
+    //                         primary_message = Some(entry.diagnostic.message.clone());
+    //                     }
+    //                     entry
+    //                 })
+    //                 .collect::<Vec<_>>();
+    //             let primary_range = primary_range?;
+    //             let primary_message = primary_message?;
+    //             let primary_range =
+    //                 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
+
+    //             let blocks = display_map
+    //                 .insert_blocks(
+    //                     diagnostic_group.iter().map(|entry| {
+    //                         let diagnostic = entry.diagnostic.clone();
+    //                         let message_height = diagnostic.message.lines().count() as u8;
+    //                         BlockProperties {
+    //                             style: BlockStyle::Fixed,
+    //                             position: buffer.anchor_after(entry.range.start),
+    //                             height: message_height,
+    //                             render: diagnostic_block_renderer(diagnostic, true),
+    //                             disposition: BlockDisposition::Below,
+    //                         }
+    //                     }),
+    //                     cx,
+    //                 )
+    //                 .into_iter()
+    //                 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
+    //                 .collect();
+
+    //             Some(ActiveDiagnosticGroup {
+    //                 primary_range,
+    //                 primary_message,
+    //                 blocks,
+    //                 is_valid: true,
+    //             })
+    //         });
+    //         self.active_diagnostics.is_some()
+    //     }
+
+    //     fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
+    //         if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
+    //             self.display_map.update(cx, |display_map, cx| {
+    //                 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
+    //             });
+    //             cx.notify();
+    //         }
+    //     }
+
+    //     pub fn set_selections_from_remote(
+    //         &mut self,
+    //         selections: Vec<Selection<Anchor>>,
+    //         pending_selection: Option<Selection<Anchor>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let old_cursor_position = self.selections.newest_anchor().head();
+    //         self.selections.change_with(cx, |s| {
+    //             s.select_anchors(selections);
+    //             if let Some(pending_selection) = pending_selection {
+    //                 s.set_pending(pending_selection, SelectMode::Character);
+    //             } else {
+    //                 s.clear_pending();
+    //             }
+    //         });
+    //         self.selections_did_change(false, &old_cursor_position, cx);
+    //     }
+
+    //     fn push_to_selection_history(&mut self) {
+    //         self.selection_history.push(SelectionHistoryEntry {
+    //             selections: self.selections.disjoint_anchors(),
+    //             select_next_state: self.select_next_state.clone(),
+    //             select_prev_state: self.select_prev_state.clone(),
+    //             add_selections_state: self.add_selections_state.clone(),
+    //         });
+    //     }
+
+    //     pub fn transact(
+    //         &mut self,
+    //         cx: &mut ViewContext<Self>,
+    //         update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
+    //     ) -> Option<TransactionId> {
+    //         self.start_transaction_at(Instant::now(), cx);
+    //         update(self, cx);
+    //         self.end_transaction_at(Instant::now(), cx)
+    //     }
+
+    //     fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
+    //         self.end_selection(cx);
+    //         if let Some(tx_id) = self
+    //             .buffer
+    //             .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
+    //         {
+    //             self.selection_history
+    //                 .insert_transaction(tx_id, self.selections.disjoint_anchors());
+    //         }
+    //     }
+
+    //     fn end_transaction_at(
+    //         &mut self,
+    //         now: Instant,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<TransactionId> {
+    //         if let Some(tx_id) = self
+    //             .buffer
+    //             .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
+    //         {
+    //             if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
+    //                 *end_selections = Some(self.selections.disjoint_anchors());
+    //             } else {
+    //                 error!("unexpectedly ended a transaction that wasn't started by this editor");
+    //             }
+
+    //             cx.emit(Event::Edited);
+    //             Some(tx_id)
+    //         } else {
+    //             None
+    //         }
+    //     }
+
+    //     pub fn fold(&mut self, _: &Fold, cx: &mut ViewContext<Self>) {
+    //         let mut fold_ranges = Vec::new();
+
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+
+    //         let selections = self.selections.all_adjusted(cx);
+    //         for selection in selections {
+    //             let range = selection.range().sorted();
+    //             let buffer_start_row = range.start.row;
+
+    //             for row in (0..=range.end.row).rev() {
+    //                 let fold_range = display_map.foldable_range(row);
+
+    //                 if let Some(fold_range) = fold_range {
+    //                     if fold_range.end.row >= buffer_start_row {
+    //                         fold_ranges.push(fold_range);
+    //                         if row <= range.start.row {
+    //                             break;
+    //                         }
+    //                     }
+    //                 }
+    //             }
+    //         }
+
+    //         self.fold_ranges(fold_ranges, true, cx);
+    //     }
+
+    //     pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
+    //         let buffer_row = fold_at.buffer_row;
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+
+    //         if let Some(fold_range) = display_map.foldable_range(buffer_row) {
+    //             let autoscroll = self
+    //                 .selections
+    //                 .all::<Point>(cx)
+    //                 .iter()
+    //                 .any(|selection| fold_range.overlaps(&selection.range()));
+
+    //             self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
+    //         }
+    //     }
+
+    //     pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let buffer = &display_map.buffer_snapshot;
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let ranges = selections
+    //             .iter()
+    //             .map(|s| {
+    //                 let range = s.display_range(&display_map).sorted();
+    //                 let mut start = range.start.to_point(&display_map);
+    //                 let mut end = range.end.to_point(&display_map);
+    //                 start.column = 0;
+    //                 end.column = buffer.line_len(end.row);
+    //                 start..end
+    //             })
+    //             .collect::<Vec<_>>();
+
+    //         self.unfold_ranges(ranges, true, true, cx);
+    //     }
+
+    //     pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+
+    //         let intersection_range = Point::new(unfold_at.buffer_row, 0)
+    //             ..Point::new(
+    //                 unfold_at.buffer_row,
+    //                 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
+    //             );
+
+    //         let autoscroll = self
+    //             .selections
+    //             .all::<Point>(cx)
+    //             .iter()
+    //             .any(|selection| selection.range().overlaps(&intersection_range));
+
+    //         self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
+    //     }
+
+    //     pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
+    //         let selections = self.selections.all::<Point>(cx);
+    //         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
+    //         let line_mode = self.selections.line_mode;
+    //         let ranges = selections.into_iter().map(|s| {
+    //             if line_mode {
+    //                 let start = Point::new(s.start.row, 0);
+    //                 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
+    //                 start..end
+    //             } else {
+    //                 s.start..s.end
+    //             }
+    //         });
+    //         self.fold_ranges(ranges, true, cx);
+    //     }
+
+    //     pub fn fold_ranges<T: ToOffset + Clone>(
+    //         &mut self,
+    //         ranges: impl IntoIterator<Item = Range<T>>,
+    //         auto_scroll: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let mut ranges = ranges.into_iter().peekable();
+    //         if ranges.peek().is_some() {
+    //             self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
+
+    //             if auto_scroll {
+    //                 self.request_autoscroll(Autoscroll::fit(), cx);
+    //             }
+
+    //             cx.notify();
+    //         }
+    //     }
+
+    //     pub fn unfold_ranges<T: ToOffset + Clone>(
+    //         &mut self,
+    //         ranges: impl IntoIterator<Item = Range<T>>,
+    //         inclusive: bool,
+    //         auto_scroll: bool,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         let mut ranges = ranges.into_iter().peekable();
+    //         if ranges.peek().is_some() {
+    //             self.display_map
+    //                 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
+    //             if auto_scroll {
+    //                 self.request_autoscroll(Autoscroll::fit(), cx);
+    //             }
+
+    //             cx.notify();
+    //         }
+    //     }
+
+    //     pub fn gutter_hover(
+    //         &mut self,
+    //         GutterHover { hovered }: &GutterHover,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.gutter_hovered = *hovered;
+    //         cx.notify();
+    //     }
+
+    //     pub fn insert_blocks(
+    //         &mut self,
+    //         blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
+    //         autoscroll: Option<Autoscroll>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Vec<BlockId> {
+    //         let blocks = self
+    //             .display_map
+    //             .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
+    //         if let Some(autoscroll) = autoscroll {
+    //             self.request_autoscroll(autoscroll, cx);
+    //         }
+    //         blocks
+    //     }
+
+    //     pub fn replace_blocks(
+    //         &mut self,
+    //         blocks: HashMap<BlockId, RenderBlock>,
+    //         autoscroll: Option<Autoscroll>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.display_map
+    //             .update(cx, |display_map, _| display_map.replace_blocks(blocks));
+    //         if let Some(autoscroll) = autoscroll {
+    //             self.request_autoscroll(autoscroll, cx);
+    //         }
+    //     }
+
+    //     pub fn remove_blocks(
+    //         &mut self,
+    //         block_ids: HashSet<BlockId>,
+    //         autoscroll: Option<Autoscroll>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.display_map.update(cx, |display_map, cx| {
+    //             display_map.remove_blocks(block_ids, cx)
+    //         });
+    //         if let Some(autoscroll) = autoscroll {
+    //             self.request_autoscroll(autoscroll, cx);
+    //         }
+    //     }
+
+    //     pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
+    //         self.display_map
+    //             .update(cx, |map, cx| map.snapshot(cx))
+    //             .longest_row()
+    //     }
+
+    //     pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
+    //         self.display_map
+    //             .update(cx, |map, cx| map.snapshot(cx))
+    //             .max_point()
+    //     }
+
+    //     pub fn text(&self, cx: &AppContext) -> String {
+    //         self.buffer.read(cx).read(cx).text()
+    //     }
+
+    //     pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
+    //         self.transact(cx, |this, cx| {
+    //             this.buffer
+    //                 .read(cx)
+    //                 .as_singleton()
+    //                 .expect("you can only call set_text on editors for singleton buffers")
+    //                 .update(cx, |buffer, cx| buffer.set_text(text, cx));
+    //         });
+    //     }
+
+    //     pub fn display_text(&self, cx: &mut AppContext) -> String {
+    //         self.display_map
+    //             .update(cx, |map, cx| map.snapshot(cx))
+    //             .text()
+    //     }
+
+    //     pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
+    //         let mut wrap_guides = smallvec::smallvec![];
+
+    //         if self.show_wrap_guides == Some(false) {
+    //             return wrap_guides;
+    //         }
+
+    //         let settings = self.buffer.read(cx).settings_at(0, cx);
+    //         if settings.show_wrap_guides {
+    //             if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
+    //                 wrap_guides.push((soft_wrap as usize, true));
+    //             }
+    //             wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
+    //         }
+
+    //         wrap_guides
+    //     }
+
+    //     pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
+    //         let settings = self.buffer.read(cx).settings_at(0, cx);
+    //         let mode = self
+    //             .soft_wrap_mode_override
+    //             .unwrap_or_else(|| settings.soft_wrap);
+    //         match mode {
+    //             language_settings::SoftWrap::None => SoftWrap::None,
+    //             language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
+    //             language_settings::SoftWrap::PreferredLineLength => {
+    //                 SoftWrap::Column(settings.preferred_line_length)
+    //             }
+    //         }
+    //     }
+
+    //     pub fn set_soft_wrap_mode(
+    //         &mut self,
+    //         mode: language_settings::SoftWrap,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.soft_wrap_mode_override = Some(mode);
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut AppContext) -> bool {
+    //         self.display_map
+    //             .update(cx, |map, cx| map.set_wrap_width(width, cx))
+    //     }
+
+    //     pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
+    //         if self.soft_wrap_mode_override.is_some() {
+    //             self.soft_wrap_mode_override.take();
+    //         } else {
+    //             let soft_wrap = match self.soft_wrap_mode(cx) {
+    //                 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
+    //                 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
+    //             };
+    //             self.soft_wrap_mode_override = Some(soft_wrap);
+    //         }
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
+    //         self.show_gutter = show_gutter;
+    //         cx.notify();
+    //     }
+
+    //     pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
+    //         self.show_wrap_guides = Some(show_gutter);
+    //         cx.notify();
+    //     }
+
+    //     pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
+    //         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
+    //             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
+    //                 cx.reveal_path(&file.abs_path(cx));
+    //             }
+    //         }
+    //     }
+
+    //     pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
+    //         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
+    //             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
+    //                 if let Some(path) = file.abs_path(cx).to_str() {
+    //                     cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
+    //                 }
+    //             }
+    //         }
+    //     }
+
+    //     pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
+    //         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
+    //             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
+    //                 if let Some(path) = file.path().to_str() {
+    //                     cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
+    //                 }
+    //             }
+    //         }
+    //     }
+
+    //     pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
+    //         self.highlighted_rows = rows;
+    //     }
+
+    //     pub fn highlighted_rows(&self) -> Option<Range<u32>> {
+    //         self.highlighted_rows.clone()
+    //     }
+
+    //     pub fn highlight_background<T: 'static>(
+    //         &mut self,
+    //         ranges: Vec<Range<Anchor>>,
+    //         color_fetcher: fn(&Theme) -> Color,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.background_highlights
+    //             .insert(TypeId::of::<T>(), (color_fetcher, ranges));
+    //         cx.notify();
+    //     }
+
+    //     pub fn highlight_inlay_background<T: 'static>(
+    //         &mut self,
+    //         ranges: Vec<InlayHighlight>,
+    //         color_fetcher: fn(&Theme) -> Color,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         // TODO: no actual highlights happen for inlays currently, find a way to do that
+    //         self.inlay_background_highlights
+    //             .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
+    //         cx.notify();
+    //     }
+
+    //     pub fn clear_background_highlights<T: 'static>(
+    //         &mut self,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Option<BackgroundHighlight> {
+    //         let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
+    //         let inlay_highlights = self
+    //             .inlay_background_highlights
+    //             .remove(&Some(TypeId::of::<T>()));
+    //         if text_highlights.is_some() || inlay_highlights.is_some() {
+    //             cx.notify();
+    //         }
+    //         text_highlights
+    //     }
+
+    //     #[cfg(feature = "test-support")]
+    //     pub fn all_text_background_highlights(
+    //         &mut self,
+    //         cx: &mut ViewContext<Self>,
+    //     ) -> Vec<(Range<DisplayPoint>, Color)> {
+    //         let snapshot = self.snapshot(cx);
+    //         let buffer = &snapshot.buffer_snapshot;
+    //         let start = buffer.anchor_before(0);
+    //         let end = buffer.anchor_after(buffer.len());
+    //         let theme = theme::current(cx);
+    //         self.background_highlights_in_range(start..end, &snapshot, theme.as_ref())
+    //     }
+
+    //     fn document_highlights_for_position<'a>(
+    //         &'a self,
+    //         position: Anchor,
+    //         buffer: &'a MultiBufferSnapshot,
+    //     ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
+    //         let read_highlights = self
+    //             .background_highlights
+    //             .get(&TypeId::of::<DocumentHighlightRead>())
+    //             .map(|h| &h.1);
+    //         let write_highlights = self
+    //             .background_highlights
+    //             .get(&TypeId::of::<DocumentHighlightWrite>())
+    //             .map(|h| &h.1);
+    //         let left_position = position.bias_left(buffer);
+    //         let right_position = position.bias_right(buffer);
+    //         read_highlights
+    //             .into_iter()
+    //             .chain(write_highlights)
+    //             .flat_map(move |ranges| {
+    //                 let start_ix = match ranges.binary_search_by(|probe| {
+    //                     let cmp = probe.end.cmp(&left_position, buffer);
+    //                     if cmp.is_ge() {
+    //                         Ordering::Greater
+    //                     } else {
+    //                         Ordering::Less
+    //                     }
+    //                 }) {
+    //                     Ok(i) | Err(i) => i,
+    //                 };
+
+    //                 let right_position = right_position.clone();
+    //                 ranges[start_ix..]
+    //                     .iter()
+    //                     .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
+    //             })
+    //     }
+
+    //     pub fn background_highlights_in_range(
+    //         &self,
+    //         search_range: Range<Anchor>,
+    //         display_snapshot: &DisplaySnapshot,
+    //         theme: &Theme,
+    //     ) -> Vec<(Range<DisplayPoint>, Color)> {
+    //         let mut results = Vec::new();
+    //         for (color_fetcher, ranges) in self.background_highlights.values() {
+    //             let color = color_fetcher(theme);
+    //             let start_ix = match ranges.binary_search_by(|probe| {
+    //                 let cmp = probe
+    //                     .end
+    //                     .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
+    //                 if cmp.is_gt() {
+    //                     Ordering::Greater
+    //                 } else {
+    //                     Ordering::Less
+    //                 }
+    //             }) {
+    //                 Ok(i) | Err(i) => i,
+    //             };
+    //             for range in &ranges[start_ix..] {
+    //                 if range
+    //                     .start
+    //                     .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
+    //                     .is_ge()
+    //                 {
+    //                     break;
+    //                 }
+
+    //                 let start = range.start.to_display_point(&display_snapshot);
+    //                 let end = range.end.to_display_point(&display_snapshot);
+    //                 results.push((start..end, color))
+    //             }
+    //         }
+    //         results
+    //     }
+
+    //     pub fn background_highlight_row_ranges<T: 'static>(
+    //         &self,
+    //         search_range: Range<Anchor>,
+    //         display_snapshot: &DisplaySnapshot,
+    //         count: usize,
+    //     ) -> Vec<RangeInclusive<DisplayPoint>> {
+    //         let mut results = Vec::new();
+    //         let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
+    //             return vec![];
+    //         };
+
+    //         let start_ix = match ranges.binary_search_by(|probe| {
+    //             let cmp = probe
+    //                 .end
+    //                 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
+    //             if cmp.is_gt() {
+    //                 Ordering::Greater
+    //             } else {
+    //                 Ordering::Less
+    //             }
+    //         }) {
+    //             Ok(i) | Err(i) => i,
+    //         };
+    //         let mut push_region = |start: Option<Point>, end: Option<Point>| {
+    //             if let (Some(start_display), Some(end_display)) = (start, end) {
+    //                 results.push(
+    //                     start_display.to_display_point(display_snapshot)
+    //                         ..=end_display.to_display_point(display_snapshot),
+    //                 );
+    //             }
+    //         };
+    //         let mut start_row: Option<Point> = None;
+    //         let mut end_row: Option<Point> = None;
+    //         if ranges.len() > count {
+    //             return Vec::new();
+    //         }
+    //         for range in &ranges[start_ix..] {
+    //             if range
+    //                 .start
+    //                 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
+    //                 .is_ge()
+    //             {
+    //                 break;
+    //             }
+    //             let end = range.end.to_point(&display_snapshot.buffer_snapshot);
+    //             if let Some(current_row) = &end_row {
+    //                 if end.row == current_row.row {
+    //                     continue;
+    //                 }
+    //             }
+    //             let start = range.start.to_point(&display_snapshot.buffer_snapshot);
+    //             if start_row.is_none() {
+    //                 assert_eq!(end_row, None);
+    //                 start_row = Some(start);
+    //                 end_row = Some(end);
+    //                 continue;
+    //             }
+    //             if let Some(current_end) = end_row.as_mut() {
+    //                 if start.row > current_end.row + 1 {
+    //                     push_region(start_row, end_row);
+    //                     start_row = Some(start);
+    //                     end_row = Some(end);
+    //                 } else {
+    //                     // Merge two hunks.
+    //                     *current_end = end;
+    //                 }
+    //             } else {
+    //                 unreachable!();
+    //             }
+    //         }
+    //         // We might still have a hunk that was not rendered (if there was a search hit on the last line)
+    //         push_region(start_row, end_row);
+    //         results
+    //     }
+
+    //     pub fn highlight_text<T: 'static>(
+    //         &mut self,
+    //         ranges: Vec<Range<Anchor>>,
+    //         style: HighlightStyle,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.display_map.update(cx, |map, _| {
+    //             map.highlight_text(TypeId::of::<T>(), ranges, style)
+    //         });
+    //         cx.notify();
+    //     }
+
+    //     pub fn highlight_inlays<T: 'static>(
+    //         &mut self,
+    //         highlights: Vec<InlayHighlight>,
+    //         style: HighlightStyle,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         self.display_map.update(cx, |map, _| {
+    //             map.highlight_inlays(TypeId::of::<T>(), highlights, style)
+    //         });
+    //         cx.notify();
+    //     }
+
+    //     pub fn text_highlights<'a, T: 'static>(
+    //         &'a self,
+    //         cx: &'a AppContext,
+    //     ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
+    //         self.display_map.read(cx).text_highlights(TypeId::of::<T>())
+    //     }
+
+    //     pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
+    //         let cleared = self
+    //             .display_map
+    //             .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
+    //         if cleared {
+    //             cx.notify();
+    //         }
+    //     }
+
+    //     pub fn show_local_cursors(&self, cx: &AppContext) -> bool {
+    //         self.blink_manager.read(cx).visible() && self.focused
+    //     }
+
+    //     fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
+    //         cx.notify();
+    //     }
+
+    //     fn on_buffer_event(
+    //         &mut self,
+    //         multibuffer: Model<MultiBuffer>,
+    //         event: &multi_buffer::Event,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         match event {
+    //             multi_buffer::Event::Edited {
+    //                 sigleton_buffer_edited,
+    //             } => {
+    //                 self.refresh_active_diagnostics(cx);
+    //                 self.refresh_code_actions(cx);
+    //                 if self.has_active_copilot_suggestion(cx) {
+    //                     self.update_visible_copilot_suggestion(cx);
+    //                 }
+    //                 cx.emit(Event::BufferEdited);
+
+    //                 if *sigleton_buffer_edited {
+    //                     if let Some(project) = &self.project {
+    //                         let project = project.read(cx);
+    //                         let languages_affected = multibuffer
+    //                             .read(cx)
+    //                             .all_buffers()
+    //                             .into_iter()
+    //                             .filter_map(|buffer| {
+    //                                 let buffer = buffer.read(cx);
+    //                                 let language = buffer.language()?;
+    //                                 if project.is_local()
+    //                                     && project.language_servers_for_buffer(buffer, cx).count() == 0
+    //                                 {
+    //                                     None
+    //                                 } else {
+    //                                     Some(language)
+    //                                 }
+    //                             })
+    //                             .cloned()
+    //                             .collect::<HashSet<_>>();
+    //                         if !languages_affected.is_empty() {
+    //                             self.refresh_inlay_hints(
+    //                                 InlayHintRefreshReason::BufferEdited(languages_affected),
+    //                                 cx,
+    //                             );
+    //                         }
+    //                     }
+    //                 }
+    //             }
+    //             multi_buffer::Event::ExcerptsAdded {
+    //                 buffer,
+    //                 predecessor,
+    //                 excerpts,
+    //             } => {
+    //                 cx.emit(Event::ExcerptsAdded {
+    //                     buffer: buffer.clone(),
+    //                     predecessor: *predecessor,
+    //                     excerpts: excerpts.clone(),
+    //                 });
+    //                 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
+    //             }
+    //             multi_buffer::Event::ExcerptsRemoved { ids } => {
+    //                 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
+    //                 cx.emit(Event::ExcerptsRemoved { ids: ids.clone() })
+    //             }
+    //             multi_buffer::Event::Reparsed => cx.emit(Event::Reparsed),
+    //             multi_buffer::Event::DirtyChanged => cx.emit(Event::DirtyChanged),
+    //             multi_buffer::Event::Saved => cx.emit(Event::Saved),
+    //             multi_buffer::Event::FileHandleChanged => cx.emit(Event::TitleChanged),
+    //             multi_buffer::Event::Reloaded => cx.emit(Event::TitleChanged),
+    //             multi_buffer::Event::DiffBaseChanged => cx.emit(Event::DiffBaseChanged),
+    //             multi_buffer::Event::Closed => cx.emit(Event::Closed),
+    //             multi_buffer::Event::DiagnosticsUpdated => {
+    //                 self.refresh_active_diagnostics(cx);
+    //             }
+    //             _ => {}
+    //         };
+    //     }
+
+    //     fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
+    //         cx.notify();
+    //     }
+
+    //     fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
+    //         self.refresh_copilot_suggestions(true, cx);
+    //         self.refresh_inlay_hints(
+    //             InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
+    //                 self.selections.newest_anchor().head(),
+    //                 &self.buffer.read(cx).snapshot(cx),
+    //                 cx,
+    //             )),
+    //             cx,
+    //         );
+    //     }
+
+    //     pub fn set_searchable(&mut self, searchable: bool) {
+    //         self.searchable = searchable;
+    //     }
+
+    //     pub fn searchable(&self) -> bool {
+    //         self.searchable
+    //     }
+
+    //     fn open_excerpts(workspace: &mut Workspace, _: &OpenExcerpts, cx: &mut ViewContext<Workspace>) {
+    //         let active_item = workspace.active_item(cx);
+    //         let editor_handle = if let Some(editor) = active_item
+    //             .as_ref()
+    //             .and_then(|item| item.act_as::<Self>(cx))
+    //         {
+    //             editor
+    //         } else {
+    //             cx.propagate_action();
+    //             return;
+    //         };
+
+    //         let editor = editor_handle.read(cx);
+    //         let buffer = editor.buffer.read(cx);
+    //         if buffer.is_singleton() {
+    //             cx.propagate_action();
+    //             return;
+    //         }
+
+    //         let mut new_selections_by_buffer = HashMap::default();
+    //         for selection in editor.selections.all::<usize>(cx) {
+    //             for (buffer, mut range, _) in
+    //                 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
+    //             {
+    //                 if selection.reversed {
+    //                     mem::swap(&mut range.start, &mut range.end);
+    //                 }
+    //                 new_selections_by_buffer
+    //                     .entry(buffer)
+    //                     .or_insert(Vec::new())
+    //                     .push(range)
+    //             }
+    //         }
+
+    //         editor_handle.update(cx, |editor, cx| {
+    //             editor.push_to_nav_history(editor.selections.newest_anchor().head(), None, cx);
+    //         });
+    //         let pane = workspace.active_pane().clone();
+    //         pane.update(cx, |pane, _| pane.disable_history());
+
+    //         // We defer the pane interaction because we ourselves are a workspace item
+    //         // and activating a new item causes the pane to call a method on us reentrantly,
+    //         // which panics if we're on the stack.
+    //         cx.defer(move |workspace, cx| {
+    //             for (buffer, ranges) in new_selections_by_buffer.into_iter() {
+    //                 let editor = workspace.open_project_item::<Self>(buffer, cx);
+    //                 editor.update(cx, |editor, cx| {
+    //                     editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
+    //                         s.select_ranges(ranges);
+    //                     });
+    //                 });
+    //             }
+
+    //             pane.update(cx, |pane, _| pane.enable_history());
+    //         });
+    //     }
+
+    //     fn jump(
+    //         workspace: &mut Workspace,
+    //         path: ProjectPath,
+    //         position: Point,
+    //         anchor: language::Anchor,
+    //         cx: &mut ViewContext<Workspace>,
+    //     ) {
+    //         let editor = workspace.open_path(path, None, true, cx);
+    //         cx.spawn(|_, mut cx| async move {
+    //             let editor = editor
+    //                 .await?
+    //                 .downcast::<Editor>()
+    //                 .ok_or_else(|| anyhow!("opened item was not an editor"))?
+    //                 .downgrade();
+    //             editor.update(&mut cx, |editor, cx| {
+    //                 let buffer = editor
+    //                     .buffer()
+    //                     .read(cx)
+    //                     .as_singleton()
+    //                     .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
+    //                 let buffer = buffer.read(cx);
+    //                 let cursor = if buffer.can_resolve(&anchor) {
+    //                     language::ToPoint::to_point(&anchor, buffer)
+    //                 } else {
+    //                     buffer.clip_point(position, Bias::Left)
+    //                 };
+
+    //                 let nav_history = editor.nav_history.take();
+    //                 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
+    //                     s.select_ranges([cursor..cursor]);
+    //                 });
+    //                 editor.nav_history = nav_history;
+
+    //                 anyhow::Ok(())
+    //             })??;
+
+    //             anyhow::Ok(())
+    //         })
+    //         .detach_and_log_err(cx);
+    //     }
+
+    //     fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
+    //         let snapshot = self.buffer.read(cx).read(cx);
+    //         let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
+    //         Some(
+    //             ranges
+    //                 .iter()
+    //                 .map(move |range| {
+    //                     range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
+    //                 })
+    //                 .collect(),
+    //         )
+    //     }
+
+    //     fn selection_replacement_ranges(
+    //         &self,
+    //         range: Range<OffsetUtf16>,
+    //         cx: &AppContext,
+    //     ) -> Vec<Range<OffsetUtf16>> {
+    //         let selections = self.selections.all::<OffsetUtf16>(cx);
+    //         let newest_selection = selections
+    //             .iter()
+    //             .max_by_key(|selection| selection.id)
+    //             .unwrap();
+    //         let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
+    //         let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
+    //         let snapshot = self.buffer.read(cx).read(cx);
+    //         selections
+    //             .into_iter()
+    //             .map(|mut selection| {
+    //                 selection.start.0 =
+    //                     (selection.start.0 as isize).saturating_add(start_delta) as usize;
+    //                 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
+    //                 snapshot.clip_offset_utf16(selection.start, Bias::Left)
+    //                     ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
+    //             })
+    //             .collect()
+    //     }
+
+    //     fn report_copilot_event(
+    //         &self,
+    //         suggestion_id: Option<String>,
+    //         suggestion_accepted: bool,
+    //         cx: &AppContext,
+    //     ) {
+    //         let Some(project) = &self.project else { return };
+
+    //         // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
+    //         let file_extension = self
+    //             .buffer
+    //             .read(cx)
+    //             .as_singleton()
+    //             .and_then(|b| b.read(cx).file())
+    //             .and_then(|file| Path::new(file.file_name(cx)).extension())
+    //             .and_then(|e| e.to_str())
+    //             .map(|a| a.to_string());
+
+    //         let telemetry = project.read(cx).client().telemetry().clone();
+    //         let telemetry_settings = *settings::get::<TelemetrySettings>(cx);
+
+    //         let event = ClickhouseEvent::Copilot {
+    //             suggestion_id,
+    //             suggestion_accepted,
+    //             file_extension,
+    //         };
+    //         telemetry.report_clickhouse_event(event, telemetry_settings);
+    //     }
+
+    //     #[cfg(any(test, feature = "test-support"))]
+    //     fn report_editor_event(
+    //         &self,
+    //         _operation: &'static str,
+    //         _file_extension: Option<String>,
+    //         _cx: &AppContext,
+    //     ) {
+    //     }
+
+    //     #[cfg(not(any(test, feature = "test-support")))]
+    //     fn report_editor_event(
+    //         &self,
+    //         operation: &'static str,
+    //         file_extension: Option<String>,
+    //         cx: &AppContext,
+    //     ) {
+    //         let Some(project) = &self.project else { return };
+
+    //         // If None, we are in a file without an extension
+    //         let file = self
+    //             .buffer
+    //             .read(cx)
+    //             .as_singleton()
+    //             .and_then(|b| b.read(cx).file());
+    //         let file_extension = file_extension.or(file
+    //             .as_ref()
+    //             .and_then(|file| Path::new(file.file_name(cx)).extension())
+    //             .and_then(|e| e.to_str())
+    //             .map(|a| a.to_string()));
+
+    //         let vim_mode = cx
+    //             .global::<SettingsStore>()
+    //             .raw_user_settings()
+    //             .get("vim_mode")
+    //             == Some(&serde_json::Value::Bool(true));
+    //         let telemetry_settings = *settings::get::<TelemetrySettings>(cx);
+    //         let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
+    //         let copilot_enabled_for_language = self
+    //             .buffer
+    //             .read(cx)
+    //             .settings_at(0, cx)
+    //             .show_copilot_suggestions;
+
+    //         let telemetry = project.read(cx).client().telemetry().clone();
+    //         let event = ClickhouseEvent::Editor {
+    //             file_extension,
+    //             vim_mode,
+    //             operation,
+    //             copilot_enabled,
+    //             copilot_enabled_for_language,
+    //         };
+    //         telemetry.report_clickhouse_event(event, telemetry_settings)
+    //     }
+
+    //     /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
+    //     /// with each line being an array of {text, highlight} objects.
+    //     fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
+    //         let Some(buffer) = self.buffer.read(cx).as_singleton() else {
+    //             return;
+    //         };
+
+    //         #[derive(Serialize)]
+    //         struct Chunk<'a> {
+    //             text: String,
+    //             highlight: Option<&'a str>,
+    //         }
+
+    //         let snapshot = buffer.read(cx).snapshot();
+    //         let range = self
+    //             .selected_text_range(cx)
+    //             .and_then(|selected_range| {
+    //                 if selected_range.is_empty() {
+    //                     None
+    //                 } else {
+    //                     Some(selected_range)
+    //                 }
+    //             })
+    //             .unwrap_or_else(|| 0..snapshot.len());
+
+    //         let chunks = snapshot.chunks(range, true);
+    //         let mut lines = Vec::new();
+    //         let mut line: VecDeque<Chunk> = VecDeque::new();
+
+    //         let theme = &theme::current(cx).editor.syntax;
+
+    //         for chunk in chunks {
+    //             let highlight = chunk.syntax_highlight_id.and_then(|id| id.name(theme));
+    //             let mut chunk_lines = chunk.text.split("\n").peekable();
+    //             while let Some(text) = chunk_lines.next() {
+    //                 let mut merged_with_last_token = false;
+    //                 if let Some(last_token) = line.back_mut() {
+    //                     if last_token.highlight == highlight {
+    //                         last_token.text.push_str(text);
+    //                         merged_with_last_token = true;
+    //                     }
+    //                 }
+
+    //                 if !merged_with_last_token {
+    //                     line.push_back(Chunk {
+    //                         text: text.into(),
+    //                         highlight,
+    //                     });
+    //                 }
+
+    //                 if chunk_lines.peek().is_some() {
+    //                     if line.len() > 1 && line.front().unwrap().text.is_empty() {
+    //                         line.pop_front();
+    //                     }
+    //                     if line.len() > 1 && line.back().unwrap().text.is_empty() {
+    //                         line.pop_back();
+    //                     }
+
+    //                     lines.push(mem::take(&mut line));
+    //                 }
+    //             }
+    //         }
+
+    //         let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
+    //             return;
+    //         };
+    //         cx.write_to_clipboard(ClipboardItem::new(lines));
+    //     }
+
+    //     pub fn inlay_hint_cache(&self) -> &InlayHintCache {
+    //         &self.inlay_hint_cache
+    //     }
+
+    //     pub fn replay_insert_event(
+    //         &mut self,
+    //         text: &str,
+    //         relative_utf16_range: Option<Range<isize>>,
+    //         cx: &mut ViewContext<Self>,
+    //     ) {
+    //         if !self.input_enabled {
+    //             cx.emit(Event::InputIgnored { text: text.into() });
+    //             return;
+    //         }
+    //         if let Some(relative_utf16_range) = relative_utf16_range {
+    //             let selections = self.selections.all::<OffsetUtf16>(cx);
+    //             self.change_selections(None, cx, |s| {
+    //                 let new_ranges = selections.into_iter().map(|range| {
+    //                     let start = OffsetUtf16(
+    //                         range
+    //                             .head()
+    //                             .0
+    //                             .saturating_add_signed(relative_utf16_range.start),
+    //                     );
+    //                     let end = OffsetUtf16(
+    //                         range
+    //                             .head()
+    //                             .0
+    //                             .saturating_add_signed(relative_utf16_range.end),
+    //                     );
+    //                     start..end
+    //                 });
+    //                 s.select_ranges(new_ranges);
+    //             });
+    //         }
+
+    //         self.handle_input(text, cx);
+    //     }
+
+    //     pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
+    //         let Some(project) = self.project.as_ref() else {
+    //             return false;
+    //         };
+    //         let project = project.read(cx);
+
+    //         let mut supports = false;
+    //         self.buffer().read(cx).for_each_buffer(|buffer| {
+    //             if !supports {
+    //                 supports = project
+    //                     .language_servers_for_buffer(buffer.read(cx), cx)
+    //                     .any(
+    //                         |(_, server)| match server.capabilities().inlay_hint_provider {
+    //                             Some(lsp::OneOf::Left(enabled)) => enabled,
+    //                             Some(lsp::OneOf::Right(_)) => true,
+    //                             None => false,
+    //                         },
+    //                     )
+    //             }
+    //         });
+    //         supports
+    //     }
+}
 
-//     pub fn auto_height(
-//         max_lines: usize,
-//         field_editor_style: Option<Arc<GetFieldEditorTheme>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         let buffer = cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, String::new()));
-//         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
-//         Self::new(
-//             EditorMode::AutoHeight { max_lines },
-//             buffer,
-//             None,
-//             field_editor_style,
-//             cx,
-//         )
-//     }
+pub trait CollaborationHub {
+    fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
+    fn user_participant_indices<'a>(
+        &self,
+        cx: &'a AppContext,
+    ) -> &'a HashMap<u64, ParticipantIndex>;
+}
 
-//     pub fn for_buffer(
-//         buffer: Model<Buffer>,
-//         project: Option<Model<Project>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
-//         Self::new(EditorMode::Full, buffer, project, None, cx)
-//     }
+impl CollaborationHub for Model<Project> {
+    fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
+        self.read(cx).collaborators()
+    }
 
-//     pub fn for_multibuffer(
-//         buffer: Model<MultiBuffer>,
-//         project: Option<Model<Project>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         Self::new(EditorMode::Full, buffer, project, None, cx)
-//     }
+    fn user_participant_indices<'a>(
+        &self,
+        cx: &'a AppContext,
+    ) -> &'a HashMap<u64, ParticipantIndex> {
+        self.read(cx).user_store().read(cx).participant_indices()
+    }
+}
 
-//     pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
-//         let mut clone = Self::new(
-//             self.mode,
-//             self.buffer.clone(),
-//             self.project.clone(),
-//             self.get_field_editor_theme.clone(),
-//             cx,
-//         );
-//         self.display_map.update(cx, |display_map, cx| {
-//             let snapshot = display_map.snapshot(cx);
-//             clone.display_map.update(cx, |display_map, cx| {
-//                 display_map.set_state(&snapshot, cx);
-//             });
-//         });
-//         clone.selections.clone_state(&self.selections);
-//         clone.scroll_manager.clone_state(&self.scroll_manager);
-//         clone.searchable = self.searchable;
-//         clone
-//     }
+fn inlay_hint_settings(
+    location: Anchor,
+    snapshot: &MultiBufferSnapshot,
+    cx: &mut ViewContext<'_, Editor>,
+) -> InlayHintSettings {
+    let file = snapshot.file_at(location);
+    let language = snapshot.language_at(location);
+    let settings = all_language_settings(file, cx);
+    settings
+        .language(language.map(|l| l.name()).as_deref())
+        .inlay_hints
+}
 
-//     fn new(
-//         mode: EditorMode,
-//         buffer: Model<MultiBuffer>,
-//         project: Option<Model<Project>>,
-//         get_field_editor_theme: Option<Arc<GetFieldEditorTheme>>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Self {
-//         let editor_view_id = cx.view_id();
-//         let display_map = cx.add_model(|cx| {
-//             let settings = settings::get::<ThemeSettings>(cx);
-//             let style = build_style(settings, get_field_editor_theme.as_deref(), None, cx);
-//             DisplayMap::new(
-//                 buffer.clone(),
-//                 style.text.font_id,
-//                 style.text.font_size,
-//                 None,
-//                 2,
-//                 1,
-//                 cx,
-//             )
-//         });
+fn consume_contiguous_rows(
+    contiguous_row_selections: &mut Vec<Selection<Point>>,
+    selection: &Selection<Point>,
+    display_map: &DisplaySnapshot,
+    selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
+) -> (u32, u32) {
+    contiguous_row_selections.push(selection.clone());
+    let start_row = selection.start.row;
+    let mut end_row = ending_row(selection, display_map);
 
-//         let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
+    while let Some(next_selection) = selections.peek() {
+        if next_selection.start.row <= end_row {
+            end_row = ending_row(next_selection, display_map);
+            contiguous_row_selections.push(selections.next().unwrap().clone());
+        } else {
+            break;
+        }
+    }
+    (start_row, end_row)
+}
 
-//         let blink_manager = cx.add_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
+fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
+    if next_selection.end.column > 0 || next_selection.is_empty() {
+        display_map.next_line_boundary(next_selection.end).0.row + 1
+    } else {
+        next_selection.end.row
+    }
+}
 
-//         let soft_wrap_mode_override =
-//             (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
+impl EditorSnapshot {
+    pub fn remote_selections_in_range<'a>(
+        &'a self,
+        range: &'a Range<Anchor>,
+        collaboration_hub: &dyn CollaborationHub,
+        cx: &'a AppContext,
+    ) -> impl 'a + Iterator<Item = RemoteSelection> {
+        let participant_indices = collaboration_hub.user_participant_indices(cx);
+        let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
+        let collaborators_by_replica_id = collaborators_by_peer_id
+            .iter()
+            .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
+            .collect::<HashMap<_, _>>();
+        self.buffer_snapshot
+            .remote_selections_in_range(range)
+            .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
+                let collaborator = collaborators_by_replica_id.get(&replica_id)?;
+                let participant_index = participant_indices.get(&collaborator.user_id).copied();
+                Some(RemoteSelection {
+                    replica_id,
+                    selection,
+                    cursor_shape,
+                    line_mode,
+                    participant_index,
+                    peer_id: collaborator.peer_id,
+                })
+            })
+    }
 
-//         let mut project_subscriptions = Vec::new();
-//         if mode == EditorMode::Full {
-//             if let Some(project) = project.as_ref() {
-//                 if buffer.read(cx).is_singleton() {
-//                     project_subscriptions.push(cx.observe(project, |_, _, cx| {
-//                         cx.emit(Event::TitleChanged);
-//                     }));
-//                 }
-//                 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
-//                     if let project::Event::RefreshInlayHints = event {
-//                         editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
-//                     };
-//                 }));
-//             }
-//         }
+    pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
+        self.display_snapshot.buffer_snapshot.language_at(position)
+    }
 
-//         let inlay_hint_settings = inlay_hint_settings(
-//             selections.newest_anchor().head(),
-//             &buffer.read(cx).snapshot(cx),
-//             cx,
-//         );
-
-//         let mut this = Self {
-//             handle: cx.weak_handle(),
-//             buffer: buffer.clone(),
-//             display_map: display_map.clone(),
-//             selections,
-//             scroll_manager: ScrollManager::new(),
-//             columnar_selection_tail: None,
-//             add_selections_state: None,
-//             select_next_state: None,
-//             select_prev_state: None,
-//             selection_history: Default::default(),
-//             autoclose_regions: Default::default(),
-//             snippet_stack: Default::default(),
-//             select_larger_syntax_node_stack: Vec::new(),
-//             ime_transaction: Default::default(),
-//             active_diagnostics: None,
-//             soft_wrap_mode_override,
-//             get_field_editor_theme,
-//             collaboration_hub: project.clone().map(|project| Box::new(project) as _),
-//             project,
-//             focused: false,
-//             blink_manager: blink_manager.clone(),
-//             show_local_selections: true,
-//             mode,
-//             show_gutter: mode == EditorMode::Full,
-//             show_wrap_guides: None,
-//             placeholder_text: None,
-//             highlighted_rows: None,
-//             background_highlights: Default::default(),
-//             inlay_background_highlights: Default::default(),
-//             nav_history: None,
-//             context_menu: RwLock::new(None),
-//             mouse_context_menu: cx
-//                 .add_view(|cx| context_menu::ContextMenu::new(editor_view_id, cx)),
-//             completion_tasks: Default::default(),
-//             next_completion_id: 0,
-//             next_inlay_id: 0,
-//             available_code_actions: Default::default(),
-//             code_actions_task: Default::default(),
-//             document_highlights_task: Default::default(),
-//             pending_rename: Default::default(),
-//             searchable: true,
-//             override_text_style: None,
-//             cursor_shape: Default::default(),
-//             autoindent_mode: Some(AutoindentMode::EachLine),
-//             collapse_matches: false,
-//             workspace: None,
-//             keymap_context_layers: Default::default(),
-//             input_enabled: true,
-//             read_only: false,
-//             leader_peer_id: None,
-//             remote_id: None,
-//             hover_state: Default::default(),
-//             link_go_to_definition_state: Default::default(),
-//             copilot_state: Default::default(),
-//             // inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
-//             gutter_hovered: false,
-//             pixel_position_of_newest_cursor: None,
-//             _subscriptions: vec![
-//                 cx.observe(&buffer, Self::on_buffer_changed),
-//                 cx.subscribe(&buffer, Self::on_buffer_event),
-//                 cx.observe(&display_map, Self::on_display_map_changed),
-//                 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
-//                 cx.observe_global::<SettingsStore, _>(Self::settings_changed),
-//                 cx.observe_window_activation(|editor, active, cx| {
-//                     editor.blink_manager.update(cx, |blink_manager, cx| {
-//                         if active {
-//                             blink_manager.enable(cx);
-//                         } else {
-//                             blink_manager.show_cursor(cx);
-//                             blink_manager.disable(cx);
-//                         }
-//                     });
-//                 }),
-//             ],
-//         };
+    pub fn is_focused(&self) -> bool {
+        self.is_focused
+    }
 
-//         this._subscriptions.extend(project_subscriptions);
+    pub fn placeholder_text(&self) -> Option<&Arc<str>> {
+        self.placeholder_text.as_ref()
+    }
 
-//         this.end_selection(cx);
-//         this.scroll_manager.show_scrollbar(cx);
+    pub fn scroll_position(&self) -> gpui::Point<Pixels> {
+        self.scroll_anchor.scroll_position(&self.display_snapshot)
+    }
+}
 
-//         let editor_created_event = EditorCreated(cx.handle());
-//         cx.emit_global(editor_created_event);
+impl Deref for EditorSnapshot {
+    type Target = DisplaySnapshot;
 
-//         if mode == EditorMode::Full {
-//             let should_auto_hide_scrollbars = cx.platform().should_auto_hide_scrollbars();
-//             cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
-//         }
+    fn deref(&self) -> &Self::Target {
+        &self.display_snapshot
+    }
+}
 
-//         this.report_editor_event("open", None, cx);
-//         this
-//     }
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum Event {
+    InputIgnored {
+        text: Arc<str>,
+    },
+    InputHandled {
+        utf16_range_to_replace: Option<Range<isize>>,
+        text: Arc<str>,
+    },
+    ExcerptsAdded {
+        buffer: Model<Buffer>,
+        predecessor: ExcerptId,
+        excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
+    },
+    ExcerptsRemoved {
+        ids: Vec<ExcerptId>,
+    },
+    BufferEdited,
+    Edited,
+    Reparsed,
+    Focused,
+    Blurred,
+    DirtyChanged,
+    Saved,
+    TitleChanged,
+    DiffBaseChanged,
+    SelectionsChanged {
+        local: bool,
+    },
+    ScrollPositionChanged {
+        local: bool,
+        autoscroll: bool,
+    },
+    Closed,
+}
 
-//     pub fn new_file(
-//         workspace: &mut Workspace,
-//         _: &workspace::NewFile,
-//         cx: &mut ViewContext<Workspace>,
-//     ) {
-//         let project = workspace.project().clone();
-//         if project.read(cx).is_remote() {
-//             cx.propagate_action();
-//         } else if let Some(buffer) = project
-//             .update(cx, |project, cx| project.create_buffer("", None, cx))
-//             .log_err()
-//         {
-//             workspace.add_item(
-//                 Box::new(cx.add_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
-//                 cx,
-//             );
-//         }
-//     }
+pub struct EditorFocused(pub View<Editor>);
+pub struct EditorBlurred(pub View<Editor>);
+pub struct EditorReleased(pub WeakView<Editor>);
 
-//     pub fn new_file_in_direction(
-//         workspace: &mut Workspace,
-//         action: &workspace::NewFileInDirection,
-//         cx: &mut ViewContext<Workspace>,
-//     ) {
-//         let project = workspace.project().clone();
-//         if project.read(cx).is_remote() {
-//             cx.propagate_action();
-//         } else if let Some(buffer) = project
-//             .update(cx, |project, cx| project.create_buffer("", None, cx))
-//             .log_err()
-//         {
-//             workspace.split_item(
-//                 action.0,
-//                 Box::new(cx.add_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
-//                 cx,
-//             );
-//         }
-//     }
+// impl Entity for Editor {
+//     type Event = Event;
 
-//     pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
-//         self.buffer.read(cx).replica_id()
+//     fn release(&mut self, cx: &mut AppContext) {
+//         cx.emit_global(EditorReleased(self.handle.clone()));
 //     }
+// }
+//
+impl EventEmitter for Editor {
+    type Event = Event;
+}
 
-//     pub fn leader_peer_id(&self) -> Option<PeerId> {
-//         self.leader_peer_id
-//     }
+impl Render for Editor {
+    type Element = EditorElement;
 
-pub fn buffer(&self) -> &Model<MultiBuffer> {
-    &self.buffer
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+        todo!()
+    }
 }
 
-//     fn workspace(&self, cx: &AppContext) -> Option<ViewHandle<Workspace>> {
-//         self.workspace.as_ref()?.0.upgrade(cx)
-//     }
-
-//     pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
-//         self.buffer().read(cx).title(cx)
-//     }
+// impl View for Editor {
+//     fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
+//         let style = self.style(cx);
+//         let font_changed = self.display_map.update(cx, |map, cx| {
+//             map.set_fold_ellipses_color(style.folds.ellipses.text_color);
+//             map.set_font(style.text.font_id, style.text.font_size, cx)
+//         });
 
-//     pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
-//         EditorSnapshot {
-//             mode: self.mode,
-//             show_gutter: self.show_gutter,
-//             display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
-//             scroll_anchor: self.scroll_manager.anchor(),
-//             ongoing_scroll: self.scroll_manager.ongoing_scroll(),
-//             placeholder_text: self.placeholder_text.clone(),
-//             is_focused: self
-//                 .handle
-//                 .upgrade(cx)
-//                 .map_or(false, |handle| handle.is_focused(cx)),
+//         if font_changed {
+//             cx.defer(move |editor, cx: &mut ViewContext<Editor>| {
+//                 hide_hover(editor, cx);
+//                 hide_link_definition(editor, cx);
+//             });
 //         }
+
+//         Stack::new()
+//             .with_child(EditorElement::new(style.clone()))
+//             .with_child(ChildView::new(&self.mouse_context_menu, cx))
+//             .into_any()
 //     }
 
-//     pub fn language_at<'a, T: ToOffset>(
-//         &self,
-//         point: T,
-//         cx: &'a AppContext,
-//     ) -> Option<Arc<Language>> {
-//         self.buffer.read(cx).language_at(point, cx)
+//     fn ui_name() -> &'static str {
+//         "Editor"
 //     }
 
-//     pub fn file_at<'a, T: ToOffset>(&self, point: T, cx: &'a AppContext) -> Option<Arc<dyn File>> {
-//         self.buffer.read(cx).read(cx).file_at(point).cloned()
-//     }
-
-//     pub fn active_excerpt(
-//         &self,
-//         cx: &AppContext,
-//     ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
-//         self.buffer
-//             .read(cx)
-//             .excerpt_containing(self.selections.newest_anchor().head(), cx)
-//     }
-
-//     pub fn style(&self, cx: &AppContext) -> EditorStyle {
-//         build_style(
-//             settings::get::<ThemeSettings>(cx),
-//             self.get_field_editor_theme.as_deref(),
-//             self.override_text_style.as_deref(),
-//             cx,
-//         )
-//     }
-
-//     pub fn mode(&self) -> EditorMode {
-//         self.mode
-//     }
-
-//     pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
-//         self.collaboration_hub.as_deref()
-//     }
-
-//     pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
-//         self.collaboration_hub = Some(hub);
-//     }
-
-//     pub fn set_placeholder_text(
-//         &mut self,
-//         placeholder_text: impl Into<Arc<str>>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.placeholder_text = Some(placeholder_text.into());
-//         cx.notify();
-//     }
-
-//     pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
-//         self.cursor_shape = cursor_shape;
-//         cx.notify();
-//     }
-
-//     pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
-//         self.collapse_matches = collapse_matches;
-//     }
-
-//     pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
-//         if self.collapse_matches {
-//             return range.start..range.start;
-//         }
-//         range.clone()
-//     }
-
-//     pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
-//         if self.display_map.read(cx).clip_at_line_ends != clip {
-//             self.display_map
-//                 .update(cx, |map, _| map.clip_at_line_ends = clip);
-//         }
-//     }
-
-//     pub fn set_keymap_context_layer<Tag: 'static>(
-//         &mut self,
-//         context: KeymapContext,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.keymap_context_layers
-//             .insert(TypeId::of::<Tag>(), context);
-//         cx.notify();
-//     }
-
-//     pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
-//         self.keymap_context_layers.remove(&TypeId::of::<Tag>());
-//         cx.notify();
-//     }
-
-//     pub fn set_input_enabled(&mut self, input_enabled: bool) {
-//         self.input_enabled = input_enabled;
-//     }
-
-//     pub fn set_autoindent(&mut self, autoindent: bool) {
-//         if autoindent {
-//             self.autoindent_mode = Some(AutoindentMode::EachLine);
-//         } else {
-//             self.autoindent_mode = None;
-//         }
-//     }
-
-//     pub fn read_only(&self) -> bool {
-//         self.read_only
-//     }
-
-//     pub fn set_read_only(&mut self, read_only: bool) {
-//         self.read_only = read_only;
-//     }
-
-//     pub fn set_field_editor_style(
-//         &mut self,
-//         style: Option<Arc<GetFieldEditorTheme>>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.get_field_editor_theme = style;
-//         cx.notify();
-//     }
-
-//     fn selections_did_change(
-//         &mut self,
-//         local: bool,
-//         old_cursor_position: &Anchor,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if self.focused && self.leader_peer_id.is_none() {
-//             self.buffer.update(cx, |buffer, cx| {
-//                 buffer.set_active_selections(
-//                     &self.selections.disjoint_anchors(),
-//                     self.selections.line_mode,
-//                     self.cursor_shape,
-//                     cx,
-//                 )
-//             });
-//         }
-
-//         let display_map = self
-//             .display_map
-//             .update(cx, |display_map, cx| display_map.snapshot(cx));
-//         let buffer = &display_map.buffer_snapshot;
-//         self.add_selections_state = None;
-//         self.select_next_state = None;
-//         self.select_prev_state = None;
-//         self.select_larger_syntax_node_stack.clear();
-//         self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
-//         self.snippet_stack
-//             .invalidate(&self.selections.disjoint_anchors(), buffer);
-//         self.take_rename(false, cx);
-
-//         let new_cursor_position = self.selections.newest_anchor().head();
-
-//         self.push_to_nav_history(
-//             old_cursor_position.clone(),
-//             Some(new_cursor_position.to_point(buffer)),
-//             cx,
-//         );
-
-//         if local {
-//             let new_cursor_position = self.selections.newest_anchor().head();
-//             let mut context_menu = self.context_menu.write();
-//             let completion_menu = match context_menu.as_ref() {
-//                 Some(ContextMenu::Completions(menu)) => Some(menu),
-
-//                 _ => {
-//                     *context_menu = None;
-//                     None
-//                 }
-//             };
-
-//             if let Some(completion_menu) = completion_menu {
-//                 let cursor_position = new_cursor_position.to_offset(buffer);
-//                 let (word_range, kind) =
-//                     buffer.surrounding_word(completion_menu.initial_position.clone());
-//                 if kind == Some(CharKind::Word)
-//                     && word_range.to_inclusive().contains(&cursor_position)
-//                 {
-//                     let mut completion_menu = completion_menu.clone();
-//                     drop(context_menu);
-
-//                     let query = Self::completion_query(buffer, cursor_position);
-//                     cx.spawn(move |this, mut cx| async move {
-//                         completion_menu
-//                             .filter(query.as_deref(), cx.background().clone())
-//                             .await;
-
-//                         this.update(&mut cx, |this, cx| {
-//                             let mut context_menu = this.context_menu.write();
-//                             let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
-//                                 return;
-//                             };
-
-//                             if menu.id > completion_menu.id {
-//                                 return;
-//                             }
-
-//                             *context_menu = Some(ContextMenu::Completions(completion_menu));
-//                             drop(context_menu);
-//                             cx.notify();
-//                         })
-//                     })
-//                     .detach();
-
-//                     self.show_completions(&ShowCompletions, cx);
-//                 } else {
-//                     drop(context_menu);
-//                     self.hide_context_menu(cx);
-//                 }
-//             } else {
-//                 drop(context_menu);
-//             }
-
-//             hide_hover(self, cx);
-
-//             if old_cursor_position.to_display_point(&display_map).row()
-//                 != new_cursor_position.to_display_point(&display_map).row()
-//             {
-//                 self.available_code_actions.take();
-//             }
-//             self.refresh_code_actions(cx);
-//             self.refresh_document_highlights(cx);
-//             refresh_matching_bracket_highlights(self, cx);
-//             self.discard_copilot_suggestion(cx);
-//         }
-
-//         self.blink_manager.update(cx, BlinkManager::pause_blinking);
-//         cx.emit(Event::SelectionsChanged { local });
-//         cx.notify();
-//     }
-
-//     pub fn change_selections<R>(
-//         &mut self,
-//         autoscroll: Option<Autoscroll>,
-//         cx: &mut ViewContext<Self>,
-//         change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
-//     ) -> R {
-//         let old_cursor_position = self.selections.newest_anchor().head();
-//         self.push_to_selection_history();
-
-//         let (changed, result) = self.selections.change_with(cx, change);
-
-//         if changed {
-//             if let Some(autoscroll) = autoscroll {
-//                 self.request_autoscroll(autoscroll, cx);
-//             }
-//             self.selections_did_change(true, &old_cursor_position, cx);
-//         }
-
-//         result
-//     }
-
-//     pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
-//     where
-//         I: IntoIterator<Item = (Range<S>, T)>,
-//         S: ToOffset,
-//         T: Into<Arc<str>>,
-//     {
-//         if self.read_only {
-//             return;
-//         }
-
-//         self.buffer
-//             .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
-//     }
-
-//     pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
-//     where
-//         I: IntoIterator<Item = (Range<S>, T)>,
-//         S: ToOffset,
-//         T: Into<Arc<str>>,
-//     {
-//         if self.read_only {
-//             return;
-//         }
-
-//         self.buffer.update(cx, |buffer, cx| {
-//             buffer.edit(edits, self.autoindent_mode.clone(), cx)
-//         });
-//     }
-
-//     pub fn edit_with_block_indent<I, S, T>(
-//         &mut self,
-//         edits: I,
-//         original_indent_columns: Vec<u32>,
-//         cx: &mut ViewContext<Self>,
-//     ) where
-//         I: IntoIterator<Item = (Range<S>, T)>,
-//         S: ToOffset,
-//         T: Into<Arc<str>>,
-//     {
-//         if self.read_only {
-//             return;
-//         }
-
-//         self.buffer.update(cx, |buffer, cx| {
-//             buffer.edit(
-//                 edits,
-//                 Some(AutoindentMode::Block {
-//                     original_indent_columns,
-//                 }),
-//                 cx,
-//             )
-//         });
-//     }
-
-//     fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
-//         self.hide_context_menu(cx);
-
-//         match phase {
-//             SelectPhase::Begin {
-//                 position,
-//                 add,
-//                 click_count,
-//             } => self.begin_selection(position, add, click_count, cx),
-//             SelectPhase::BeginColumnar {
-//                 position,
-//                 goal_column,
-//             } => self.begin_columnar_selection(position, goal_column, cx),
-//             SelectPhase::Extend {
-//                 position,
-//                 click_count,
-//             } => self.extend_selection(position, click_count, cx),
-//             SelectPhase::Update {
-//                 position,
-//                 goal_column,
-//                 scroll_position,
-//             } => self.update_selection(position, goal_column, scroll_position, cx),
-//             SelectPhase::End => self.end_selection(cx),
-//         }
-//     }
-
-//     fn extend_selection(
-//         &mut self,
-//         position: DisplayPoint,
-//         click_count: usize,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let tail = self.selections.newest::<usize>(cx).tail();
-//         self.begin_selection(position, false, click_count, cx);
-
-//         let position = position.to_offset(&display_map, Bias::Left);
-//         let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
-
-//         let mut pending_selection = self
-//             .selections
-//             .pending_anchor()
-//             .expect("extend_selection not called with pending selection");
-//         if position >= tail {
-//             pending_selection.start = tail_anchor;
-//         } else {
-//             pending_selection.end = tail_anchor;
-//             pending_selection.reversed = true;
-//         }
-
-//         let mut pending_mode = self.selections.pending_mode().unwrap();
-//         match &mut pending_mode {
-//             SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
-//             _ => {}
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.set_pending(pending_selection, pending_mode)
-//         });
-//     }
-
-//     fn begin_selection(
-//         &mut self,
-//         position: DisplayPoint,
-//         add: bool,
-//         click_count: usize,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if !self.focused {
-//             cx.focus_self();
-//         }
-
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = &display_map.buffer_snapshot;
-//         let newest_selection = self.selections.newest_anchor().clone();
-//         let position = display_map.clip_point(position, Bias::Left);
-
-//         let start;
-//         let end;
-//         let mode;
-//         let auto_scroll;
-//         match click_count {
-//             1 => {
-//                 start = buffer.anchor_before(position.to_point(&display_map));
-//                 end = start.clone();
-//                 mode = SelectMode::Character;
-//                 auto_scroll = true;
-//             }
-//             2 => {
-//                 let range = movement::surrounding_word(&display_map, position);
-//                 start = buffer.anchor_before(range.start.to_point(&display_map));
-//                 end = buffer.anchor_before(range.end.to_point(&display_map));
-//                 mode = SelectMode::Word(start.clone()..end.clone());
-//                 auto_scroll = true;
-//             }
-//             3 => {
-//                 let position = display_map
-//                     .clip_point(position, Bias::Left)
-//                     .to_point(&display_map);
-//                 let line_start = display_map.prev_line_boundary(position).0;
-//                 let next_line_start = buffer.clip_point(
-//                     display_map.next_line_boundary(position).0 + Point::new(1, 0),
-//                     Bias::Left,
-//                 );
-//                 start = buffer.anchor_before(line_start);
-//                 end = buffer.anchor_before(next_line_start);
-//                 mode = SelectMode::Line(start.clone()..end.clone());
-//                 auto_scroll = true;
-//             }
-//             _ => {
-//                 start = buffer.anchor_before(0);
-//                 end = buffer.anchor_before(buffer.len());
-//                 mode = SelectMode::All;
-//                 auto_scroll = false;
-//             }
-//         }
-
-//         self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
-//             if !add {
-//                 s.clear_disjoint();
-//             } else if click_count > 1 {
-//                 s.delete(newest_selection.id)
-//             }
-
-//             s.set_pending_anchor_range(start..end, mode);
-//         });
-//     }
-
-//     fn begin_columnar_selection(
-//         &mut self,
-//         position: DisplayPoint,
-//         goal_column: u32,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if !self.focused {
-//             cx.focus_self();
-//         }
-
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let tail = self.selections.newest::<Point>(cx).tail();
-//         self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
-
-//         self.select_columns(
-//             tail.to_display_point(&display_map),
-//             position,
-//             goal_column,
-//             &display_map,
-//             cx,
-//         );
-//     }
-
-//     fn update_selection(
-//         &mut self,
-//         position: DisplayPoint,
-//         goal_column: u32,
-//         scroll_position: Vector2F,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-
-//         if let Some(tail) = self.columnar_selection_tail.as_ref() {
-//             let tail = tail.to_display_point(&display_map);
-//             self.select_columns(tail, position, goal_column, &display_map, cx);
-//         } else if let Some(mut pending) = self.selections.pending_anchor() {
-//             let buffer = self.buffer.read(cx).snapshot(cx);
-//             let head;
-//             let tail;
-//             let mode = self.selections.pending_mode().unwrap();
-//             match &mode {
-//                 SelectMode::Character => {
-//                     head = position.to_point(&display_map);
-//                     tail = pending.tail().to_point(&buffer);
-//                 }
-//                 SelectMode::Word(original_range) => {
-//                     let original_display_range = original_range.start.to_display_point(&display_map)
-//                         ..original_range.end.to_display_point(&display_map);
-//                     let original_buffer_range = original_display_range.start.to_point(&display_map)
-//                         ..original_display_range.end.to_point(&display_map);
-//                     if movement::is_inside_word(&display_map, position)
-//                         || original_display_range.contains(&position)
-//                     {
-//                         let word_range = movement::surrounding_word(&display_map, position);
-//                         if word_range.start < original_display_range.start {
-//                             head = word_range.start.to_point(&display_map);
-//                         } else {
-//                             head = word_range.end.to_point(&display_map);
-//                         }
-//                     } else {
-//                         head = position.to_point(&display_map);
-//                     }
-
-//                     if head <= original_buffer_range.start {
-//                         tail = original_buffer_range.end;
-//                     } else {
-//                         tail = original_buffer_range.start;
-//                     }
-//                 }
-//                 SelectMode::Line(original_range) => {
-//                     let original_range = original_range.to_point(&display_map.buffer_snapshot);
-
-//                     let position = display_map
-//                         .clip_point(position, Bias::Left)
-//                         .to_point(&display_map);
-//                     let line_start = display_map.prev_line_boundary(position).0;
-//                     let next_line_start = buffer.clip_point(
-//                         display_map.next_line_boundary(position).0 + Point::new(1, 0),
-//                         Bias::Left,
-//                     );
-
-//                     if line_start < original_range.start {
-//                         head = line_start
-//                     } else {
-//                         head = next_line_start
-//                     }
-
-//                     if head <= original_range.start {
-//                         tail = original_range.end;
-//                     } else {
-//                         tail = original_range.start;
-//                     }
-//                 }
-//                 SelectMode::All => {
-//                     return;
-//                 }
-//             };
-
-//             if head < tail {
-//                 pending.start = buffer.anchor_before(head);
-//                 pending.end = buffer.anchor_before(tail);
-//                 pending.reversed = true;
-//             } else {
-//                 pending.start = buffer.anchor_before(tail);
-//                 pending.end = buffer.anchor_before(head);
-//                 pending.reversed = false;
-//             }
-
-//             self.change_selections(None, cx, |s| {
-//                 s.set_pending(pending, mode);
-//             });
-//         } else {
-//             error!("update_selection dispatched with no pending selection");
-//             return;
-//         }
-
-//         self.set_scroll_position(scroll_position, cx);
-//         cx.notify();
-//     }
-
-//     fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
-//         self.columnar_selection_tail.take();
-//         if self.selections.pending_anchor().is_some() {
-//             let selections = self.selections.all::<usize>(cx);
-//             self.change_selections(None, cx, |s| {
-//                 s.select(selections);
-//                 s.clear_pending();
-//             });
-//         }
-//     }
-
-//     fn select_columns(
-//         &mut self,
-//         tail: DisplayPoint,
-//         head: DisplayPoint,
-//         goal_column: u32,
-//         display_map: &DisplaySnapshot,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let start_row = cmp::min(tail.row(), head.row());
-//         let end_row = cmp::max(tail.row(), head.row());
-//         let start_column = cmp::min(tail.column(), goal_column);
-//         let end_column = cmp::max(tail.column(), goal_column);
-//         let reversed = start_column < tail.column();
-
-//         let selection_ranges = (start_row..=end_row)
-//             .filter_map(|row| {
-//                 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
-//                     let start = display_map
-//                         .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
-//                         .to_point(display_map);
-//                     let end = display_map
-//                         .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
-//                         .to_point(display_map);
-//                     if reversed {
-//                         Some(end..start)
-//                     } else {
-//                         Some(start..end)
-//                     }
-//                 } else {
-//                     None
-//                 }
-//             })
-//             .collect::<Vec<_>>();
-
-//         self.change_selections(None, cx, |s| {
-//             s.select_ranges(selection_ranges);
-//         });
-//         cx.notify();
-//     }
-
-//     pub fn has_pending_nonempty_selection(&self) -> bool {
-//         let pending_nonempty_selection = match self.selections.pending_anchor() {
-//             Some(Selection { start, end, .. }) => start != end,
-//             None => false,
-//         };
-//         pending_nonempty_selection || self.columnar_selection_tail.is_some()
-//     }
-
-//     pub fn has_pending_selection(&self) -> bool {
-//         self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
-//     }
-
-//     pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
-//         if self.take_rename(false, cx).is_some() {
-//             return;
-//         }
-
-//         if hide_hover(self, cx) {
-//             return;
-//         }
-
-//         if self.hide_context_menu(cx).is_some() {
-//             return;
-//         }
-
-//         if self.discard_copilot_suggestion(cx) {
-//             return;
-//         }
-
-//         if self.snippet_stack.pop().is_some() {
-//             return;
-//         }
-
-//         if self.mode == EditorMode::Full {
-//             if self.active_diagnostics.is_some() {
-//                 self.dismiss_diagnostics(cx);
-//                 return;
-//             }
-
-//             if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
-//                 return;
-//             }
-//         }
-
-//         cx.propagate_action();
-//     }
-
-//     pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
-//         let text: Arc<str> = text.into();
-
-//         if self.read_only {
-//             return;
-//         }
-
-//         let selections = self.selections.all_adjusted(cx);
-//         let mut brace_inserted = false;
-//         let mut edits = Vec::new();
-//         let mut new_selections = Vec::with_capacity(selections.len());
-//         let mut new_autoclose_regions = Vec::new();
-//         let snapshot = self.buffer.read(cx).read(cx);
-
-//         for (selection, autoclose_region) in
-//             self.selections_with_autoclose_regions(selections, &snapshot)
-//         {
-//             if let Some(scope) = snapshot.language_scope_at(selection.head()) {
-//                 // Determine if the inserted text matches the opening or closing
-//                 // bracket of any of this language's bracket pairs.
-//                 let mut bracket_pair = None;
-//                 let mut is_bracket_pair_start = false;
-//                 if !text.is_empty() {
-//                     // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
-//                     //  and they are removing the character that triggered IME popup.
-//                     for (pair, enabled) in scope.brackets() {
-//                         if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
-//                             bracket_pair = Some(pair.clone());
-//                             is_bracket_pair_start = true;
-//                             break;
-//                         } else if pair.end.as_str() == text.as_ref() {
-//                             bracket_pair = Some(pair.clone());
-//                             break;
-//                         }
-//                     }
-//                 }
-
-//                 if let Some(bracket_pair) = bracket_pair {
-//                     if selection.is_empty() {
-//                         if is_bracket_pair_start {
-//                             let prefix_len = bracket_pair.start.len() - text.len();
-
-//                             // If the inserted text is a suffix of an opening bracket and the
-//                             // selection is preceded by the rest of the opening bracket, then
-//                             // insert the closing bracket.
-//                             let following_text_allows_autoclose = snapshot
-//                                 .chars_at(selection.start)
-//                                 .next()
-//                                 .map_or(true, |c| scope.should_autoclose_before(c));
-//                             let preceding_text_matches_prefix = prefix_len == 0
-//                                 || (selection.start.column >= (prefix_len as u32)
-//                                     && snapshot.contains_str_at(
-//                                         Point::new(
-//                                             selection.start.row,
-//                                             selection.start.column - (prefix_len as u32),
-//                                         ),
-//                                         &bracket_pair.start[..prefix_len],
-//                                     ));
-//                             if following_text_allows_autoclose && preceding_text_matches_prefix {
-//                                 let anchor = snapshot.anchor_before(selection.end);
-//                                 new_selections.push((selection.map(|_| anchor), text.len()));
-//                                 new_autoclose_regions.push((
-//                                     anchor,
-//                                     text.len(),
-//                                     selection.id,
-//                                     bracket_pair.clone(),
-//                                 ));
-//                                 edits.push((
-//                                     selection.range(),
-//                                     format!("{}{}", text, bracket_pair.end).into(),
-//                                 ));
-//                                 brace_inserted = true;
-//                                 continue;
-//                             }
-//                         }
-
-//                         if let Some(region) = autoclose_region {
-//                             // If the selection is followed by an auto-inserted closing bracket,
-//                             // then don't insert that closing bracket again; just move the selection
-//                             // past the closing bracket.
-//                             let should_skip = selection.end == region.range.end.to_point(&snapshot)
-//                                 && text.as_ref() == region.pair.end.as_str();
-//                             if should_skip {
-//                                 let anchor = snapshot.anchor_after(selection.end);
-//                                 new_selections
-//                                     .push((selection.map(|_| anchor), region.pair.end.len()));
-//                                 continue;
-//                             }
-//                         }
-//                     }
-//                     // If an opening bracket is 1 character long and is typed while
-//                     // text is selected, then surround that text with the bracket pair.
-//                     else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
-//                         edits.push((selection.start..selection.start, text.clone()));
-//                         edits.push((
-//                             selection.end..selection.end,
-//                             bracket_pair.end.as_str().into(),
-//                         ));
-//                         brace_inserted = true;
-//                         new_selections.push((
-//                             Selection {
-//                                 id: selection.id,
-//                                 start: snapshot.anchor_after(selection.start),
-//                                 end: snapshot.anchor_before(selection.end),
-//                                 reversed: selection.reversed,
-//                                 goal: selection.goal,
-//                             },
-//                             0,
-//                         ));
-//                         continue;
-//                     }
-//                 }
-//             }
-
-//             // If not handling any auto-close operation, then just replace the selected
-//             // text with the given input and move the selection to the end of the
-//             // newly inserted text.
-//             let anchor = snapshot.anchor_after(selection.end);
-//             new_selections.push((selection.map(|_| anchor), 0));
-//             edits.push((selection.start..selection.end, text.clone()));
-//         }
-
-//         drop(snapshot);
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |buffer, cx| {
-//                 buffer.edit(edits, this.autoindent_mode.clone(), cx);
-//             });
-
-//             let new_anchor_selections = new_selections.iter().map(|e| &e.0);
-//             let new_selection_deltas = new_selections.iter().map(|e| e.1);
-//             let snapshot = this.buffer.read(cx).read(cx);
-//             let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
-//                 .zip(new_selection_deltas)
-//                 .map(|(selection, delta)| Selection {
-//                     id: selection.id,
-//                     start: selection.start + delta,
-//                     end: selection.end + delta,
-//                     reversed: selection.reversed,
-//                     goal: SelectionGoal::None,
-//                 })
-//                 .collect::<Vec<_>>();
-
-//             let mut i = 0;
-//             for (position, delta, selection_id, pair) in new_autoclose_regions {
-//                 let position = position.to_offset(&snapshot) + delta;
-//                 let start = snapshot.anchor_before(position);
-//                 let end = snapshot.anchor_after(position);
-//                 while let Some(existing_state) = this.autoclose_regions.get(i) {
-//                     match existing_state.range.start.cmp(&start, &snapshot) {
-//                         Ordering::Less => i += 1,
-//                         Ordering::Greater => break,
-//                         Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
-//                             Ordering::Less => i += 1,
-//                             Ordering::Equal => break,
-//                             Ordering::Greater => break,
-//                         },
-//                     }
-//                 }
-//                 this.autoclose_regions.insert(
-//                     i,
-//                     AutocloseRegion {
-//                         selection_id,
-//                         range: start..end,
-//                         pair,
-//                     },
-//                 );
-//             }
-
-//             drop(snapshot);
-//             let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
-
-//             if !brace_inserted && settings::get::<EditorSettings>(cx).use_on_type_format {
-//                 if let Some(on_type_format_task) =
-//                     this.trigger_on_type_formatting(text.to_string(), cx)
-//                 {
-//                     on_type_format_task.detach_and_log_err(cx);
-//                 }
-//             }
-
-//             if had_active_copilot_suggestion {
-//                 this.refresh_copilot_suggestions(true, cx);
-//                 if !this.has_active_copilot_suggestion(cx) {
-//                     this.trigger_completion_on_input(&text, cx);
-//                 }
-//             } else {
-//                 this.trigger_completion_on_input(&text, cx);
-//                 this.refresh_copilot_suggestions(true, cx);
-//             }
-//         });
-//     }
-
-//     pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
-//                 let selections = this.selections.all::<usize>(cx);
-//                 let multi_buffer = this.buffer.read(cx);
-//                 let buffer = multi_buffer.snapshot(cx);
-//                 selections
-//                     .iter()
-//                     .map(|selection| {
-//                         let start_point = selection.start.to_point(&buffer);
-//                         let mut indent = buffer.indent_size_for_line(start_point.row);
-//                         indent.len = cmp::min(indent.len, start_point.column);
-//                         let start = selection.start;
-//                         let end = selection.end;
-//                         let is_cursor = start == end;
-//                         let language_scope = buffer.language_scope_at(start);
-//                         let (comment_delimiter, insert_extra_newline) = if let Some(language) =
-//                             &language_scope
-//                         {
-//                             let leading_whitespace_len = buffer
-//                                 .reversed_chars_at(start)
-//                                 .take_while(|c| c.is_whitespace() && *c != '\n')
-//                                 .map(|c| c.len_utf8())
-//                                 .sum::<usize>();
-
-//                             let trailing_whitespace_len = buffer
-//                                 .chars_at(end)
-//                                 .take_while(|c| c.is_whitespace() && *c != '\n')
-//                                 .map(|c| c.len_utf8())
-//                                 .sum::<usize>();
-
-//                             let insert_extra_newline =
-//                                 language.brackets().any(|(pair, enabled)| {
-//                                     let pair_start = pair.start.trim_end();
-//                                     let pair_end = pair.end.trim_start();
-
-//                                     enabled
-//                                         && pair.newline
-//                                         && buffer.contains_str_at(
-//                                             end + trailing_whitespace_len,
-//                                             pair_end,
-//                                         )
-//                                         && buffer.contains_str_at(
-//                                             (start - leading_whitespace_len)
-//                                                 .saturating_sub(pair_start.len()),
-//                                             pair_start,
-//                                         )
-//                                 });
-//                             // Comment extension on newline is allowed only for cursor selections
-//                             let comment_delimiter = language.line_comment_prefix().filter(|_| {
-//                                 let is_comment_extension_enabled =
-//                                     multi_buffer.settings_at(0, cx).extend_comment_on_newline;
-//                                 is_cursor && is_comment_extension_enabled
-//                             });
-//                             let comment_delimiter = if let Some(delimiter) = comment_delimiter {
-//                                 buffer
-//                                     .buffer_line_for_row(start_point.row)
-//                                     .is_some_and(|(snapshot, range)| {
-//                                         let mut index_of_first_non_whitespace = 0;
-//                                         let line_starts_with_comment = snapshot
-//                                             .chars_for_range(range)
-//                                             .skip_while(|c| {
-//                                                 let should_skip = c.is_whitespace();
-//                                                 if should_skip {
-//                                                     index_of_first_non_whitespace += 1;
-//                                                 }
-//                                                 should_skip
-//                                             })
-//                                             .take(delimiter.len())
-//                                             .eq(delimiter.chars());
-//                                         let cursor_is_placed_after_comment_marker =
-//                                             index_of_first_non_whitespace + delimiter.len()
-//                                                 <= start_point.column as usize;
-//                                         line_starts_with_comment
-//                                             && cursor_is_placed_after_comment_marker
-//                                     })
-//                                     .then(|| delimiter.clone())
-//                             } else {
-//                                 None
-//                             };
-//                             (comment_delimiter, insert_extra_newline)
-//                         } else {
-//                             (None, false)
-//                         };
-
-//                         let capacity_for_delimiter = comment_delimiter
-//                             .as_deref()
-//                             .map(str::len)
-//                             .unwrap_or_default();
-//                         let mut new_text =
-//                             String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
-//                         new_text.push_str("\n");
-//                         new_text.extend(indent.chars());
-//                         if let Some(delimiter) = &comment_delimiter {
-//                             new_text.push_str(&delimiter);
-//                         }
-//                         if insert_extra_newline {
-//                             new_text = new_text.repeat(2);
-//                         }
-
-//                         let anchor = buffer.anchor_after(end);
-//                         let new_selection = selection.map(|_| anchor);
-//                         (
-//                             (start..end, new_text),
-//                             (insert_extra_newline, new_selection),
-//                         )
-//                     })
-//                     .unzip()
-//             };
-
-//             this.edit_with_autoindent(edits, cx);
-//             let buffer = this.buffer.read(cx).snapshot(cx);
-//             let new_selections = selection_fixup_info
-//                 .into_iter()
-//                 .map(|(extra_newline_inserted, new_selection)| {
-//                     let mut cursor = new_selection.end.to_point(&buffer);
-//                     if extra_newline_inserted {
-//                         cursor.row -= 1;
-//                         cursor.column = buffer.line_len(cursor.row);
-//                     }
-//                     new_selection.map(|_| cursor)
-//                 })
-//                 .collect();
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
-//             this.refresh_copilot_suggestions(true, cx);
-//         });
-//     }
-
-//     pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
-//         let buffer = self.buffer.read(cx);
-//         let snapshot = buffer.snapshot(cx);
-
-//         let mut edits = Vec::new();
-//         let mut rows = Vec::new();
-//         let mut rows_inserted = 0;
-
-//         for selection in self.selections.all_adjusted(cx) {
-//             let cursor = selection.head();
-//             let row = cursor.row;
-
-//             let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
-
-//             let newline = "\n".to_string();
-//             edits.push((start_of_line..start_of_line, newline));
-
-//             rows.push(row + rows_inserted);
-//             rows_inserted += 1;
-//         }
-
-//         self.transact(cx, |editor, cx| {
-//             editor.edit(edits, cx);
-
-//             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let mut index = 0;
-//                 s.move_cursors_with(|map, _, _| {
-//                     let row = rows[index];
-//                     index += 1;
-
-//                     let point = Point::new(row, 0);
-//                     let boundary = map.next_line_boundary(point).1;
-//                     let clipped = map.clip_point(boundary, Bias::Left);
-
-//                     (clipped, SelectionGoal::None)
-//                 });
-//             });
-
-//             let mut indent_edits = Vec::new();
-//             let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
-//             for row in rows {
-//                 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
-//                 for (row, indent) in indents {
-//                     if indent.len == 0 {
-//                         continue;
-//                     }
-
-//                     let text = match indent.kind {
-//                         IndentKind::Space => " ".repeat(indent.len as usize),
-//                         IndentKind::Tab => "\t".repeat(indent.len as usize),
-//                     };
-//                     let point = Point::new(row, 0);
-//                     indent_edits.push((point..point, text));
-//                 }
-//             }
-//             editor.edit(indent_edits, cx);
-//         });
-//     }
-
-//     pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
-//         let buffer = self.buffer.read(cx);
-//         let snapshot = buffer.snapshot(cx);
-
-//         let mut edits = Vec::new();
-//         let mut rows = Vec::new();
-//         let mut rows_inserted = 0;
-
-//         for selection in self.selections.all_adjusted(cx) {
-//             let cursor = selection.head();
-//             let row = cursor.row;
-
-//             let point = Point::new(row + 1, 0);
-//             let start_of_line = snapshot.clip_point(point, Bias::Left);
-
-//             let newline = "\n".to_string();
-//             edits.push((start_of_line..start_of_line, newline));
-
-//             rows_inserted += 1;
-//             rows.push(row + rows_inserted);
-//         }
-
-//         self.transact(cx, |editor, cx| {
-//             editor.edit(edits, cx);
-
-//             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let mut index = 0;
-//                 s.move_cursors_with(|map, _, _| {
-//                     let row = rows[index];
-//                     index += 1;
-
-//                     let point = Point::new(row, 0);
-//                     let boundary = map.next_line_boundary(point).1;
-//                     let clipped = map.clip_point(boundary, Bias::Left);
-
-//                     (clipped, SelectionGoal::None)
-//                 });
-//             });
-
-//             let mut indent_edits = Vec::new();
-//             let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
-//             for row in rows {
-//                 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
-//                 for (row, indent) in indents {
-//                     if indent.len == 0 {
-//                         continue;
-//                     }
-
-//                     let text = match indent.kind {
-//                         IndentKind::Space => " ".repeat(indent.len as usize),
-//                         IndentKind::Tab => "\t".repeat(indent.len as usize),
-//                     };
-//                     let point = Point::new(row, 0);
-//                     indent_edits.push((point..point, text));
-//                 }
-//             }
-//             editor.edit(indent_edits, cx);
-//         });
-//     }
-
-//     pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
-//         self.insert_with_autoindent_mode(
-//             text,
-//             Some(AutoindentMode::Block {
-//                 original_indent_columns: Vec::new(),
-//             }),
-//             cx,
-//         );
-//     }
-
-//     fn insert_with_autoindent_mode(
-//         &mut self,
-//         text: &str,
-//         autoindent_mode: Option<AutoindentMode>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if self.read_only {
-//             return;
-//         }
-
-//         let text: Arc<str> = text.into();
-//         self.transact(cx, |this, cx| {
-//             let old_selections = this.selections.all_adjusted(cx);
-//             let selection_anchors = this.buffer.update(cx, |buffer, cx| {
-//                 let anchors = {
-//                     let snapshot = buffer.read(cx);
-//                     old_selections
-//                         .iter()
-//                         .map(|s| {
-//                             let anchor = snapshot.anchor_after(s.head());
-//                             s.map(|_| anchor)
-//                         })
-//                         .collect::<Vec<_>>()
-//                 };
-//                 buffer.edit(
-//                     old_selections
-//                         .iter()
-//                         .map(|s| (s.start..s.end, text.clone())),
-//                     autoindent_mode,
-//                     cx,
-//                 );
-//                 anchors
-//             });
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select_anchors(selection_anchors);
-//             })
-//         });
-//     }
-
-//     fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
-//         if !settings::get::<EditorSettings>(cx).show_completions_on_input {
-//             return;
-//         }
-
-//         let selection = self.selections.newest_anchor();
-//         if self
-//             .buffer
-//             .read(cx)
-//             .is_completion_trigger(selection.head(), text, cx)
-//         {
-//             self.show_completions(&ShowCompletions, cx);
-//         } else {
-//             self.hide_context_menu(cx);
-//         }
-//     }
-
-//     /// If any empty selections is touching the start of its innermost containing autoclose
-//     /// region, expand it to select the brackets.
-//     fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
-//         let selections = self.selections.all::<usize>(cx);
-//         let buffer = self.buffer.read(cx).read(cx);
-//         let mut new_selections = Vec::new();
-//         for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
-//             if let (Some(region), true) = (region, selection.is_empty()) {
-//                 let mut range = region.range.to_offset(&buffer);
-//                 if selection.start == range.start {
-//                     if range.start >= region.pair.start.len() {
-//                         range.start -= region.pair.start.len();
-//                         if buffer.contains_str_at(range.start, &region.pair.start) {
-//                             if buffer.contains_str_at(range.end, &region.pair.end) {
-//                                 range.end += region.pair.end.len();
-//                                 selection.start = range.start;
-//                                 selection.end = range.end;
-//                             }
-//                         }
-//                     }
-//                 }
-//             }
-//             new_selections.push(selection);
-//         }
-
-//         drop(buffer);
-//         self.change_selections(None, cx, |selections| selections.select(new_selections));
-//     }
-
-//     /// Iterate the given selections, and for each one, find the smallest surrounding
-//     /// autoclose region. This uses the ordering of the selections and the autoclose
-//     /// regions to avoid repeated comparisons.
-//     fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
-//         &'a self,
-//         selections: impl IntoIterator<Item = Selection<D>>,
-//         buffer: &'a MultiBufferSnapshot,
-//     ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
-//         let mut i = 0;
-//         let mut regions = self.autoclose_regions.as_slice();
-//         selections.into_iter().map(move |selection| {
-//             let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
-
-//             let mut enclosing = None;
-//             while let Some(pair_state) = regions.get(i) {
-//                 if pair_state.range.end.to_offset(buffer) < range.start {
-//                     regions = &regions[i + 1..];
-//                     i = 0;
-//                 } else if pair_state.range.start.to_offset(buffer) > range.end {
-//                     break;
-//                 } else {
-//                     if pair_state.selection_id == selection.id {
-//                         enclosing = Some(pair_state);
-//                     }
-//                     i += 1;
-//                 }
-//             }
-
-//             (selection.clone(), enclosing)
-//         })
-//     }
-
-//     /// Remove any autoclose regions that no longer contain their selection.
-//     fn invalidate_autoclose_regions(
-//         &mut self,
-//         mut selections: &[Selection<Anchor>],
-//         buffer: &MultiBufferSnapshot,
-//     ) {
-//         self.autoclose_regions.retain(|state| {
-//             let mut i = 0;
-//             while let Some(selection) = selections.get(i) {
-//                 if selection.end.cmp(&state.range.start, buffer).is_lt() {
-//                     selections = &selections[1..];
-//                     continue;
-//                 }
-//                 if selection.start.cmp(&state.range.end, buffer).is_gt() {
-//                     break;
-//                 }
-//                 if selection.id == state.selection_id {
-//                     return true;
-//                 } else {
-//                     i += 1;
-//                 }
-//             }
-//             false
-//         });
-//     }
-
-//     fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
-//         let offset = position.to_offset(buffer);
-//         let (word_range, kind) = buffer.surrounding_word(offset);
-//         if offset > word_range.start && kind == Some(CharKind::Word) {
-//             Some(
-//                 buffer
-//                     .text_for_range(word_range.start..offset)
-//                     .collect::<String>(),
-//             )
-//         } else {
-//             None
-//         }
-//     }
-
-//     pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
-//         todo!();
-//         // self.refresh_inlay_hints(
-//         //     InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
-//         //     cx,
-//         // );
-//     }
-
-//     pub fn inlay_hints_enabled(&self) -> bool {
-//         todo!();
-//         self.inlay_hint_cache.enabled
-//     }
-
-//     fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
-//         if self.project.is_none() || self.mode != EditorMode::Full {
-//             return;
-//         }
-
-//         let reason_description = reason.description();
-//         let (invalidate_cache, required_languages) = match reason {
-//             InlayHintRefreshReason::Toggle(enabled) => {
-//                 self.inlay_hint_cache.enabled = enabled;
-//                 if enabled {
-//                     (InvalidationStrategy::RefreshRequested, None)
-//                 } else {
-//                     self.inlay_hint_cache.clear();
-//                     self.splice_inlay_hints(
-//                         self.visible_inlay_hints(cx)
-//                             .iter()
-//                             .map(|inlay| inlay.id)
-//                             .collect(),
-//                         Vec::new(),
-//                         cx,
-//                     );
-//                     return;
-//                 }
-//             }
-//             InlayHintRefreshReason::SettingsChange(new_settings) => {
-//                 match self.inlay_hint_cache.update_settings(
-//                     &self.buffer,
-//                     new_settings,
-//                     self.visible_inlay_hints(cx),
-//                     cx,
-//                 ) {
-//                     ControlFlow::Break(Some(InlaySplice {
-//                         to_remove,
-//                         to_insert,
-//                     })) => {
-//                         self.splice_inlay_hints(to_remove, to_insert, cx);
-//                         return;
-//                     }
-//                     ControlFlow::Break(None) => return,
-//                     ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
-//                 }
-//             }
-//             InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
-//                 if let Some(InlaySplice {
-//                     to_remove,
-//                     to_insert,
-//                 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
-//                 {
-//                     self.splice_inlay_hints(to_remove, to_insert, cx);
-//                 }
-//                 return;
-//             }
-//             InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
-//             InlayHintRefreshReason::BufferEdited(buffer_languages) => {
-//                 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
-//             }
-//             InlayHintRefreshReason::RefreshRequested => {
-//                 (InvalidationStrategy::RefreshRequested, None)
-//             }
-//         };
-
-//         if let Some(InlaySplice {
-//             to_remove,
-//             to_insert,
-//         }) = self.inlay_hint_cache.spawn_hint_refresh(
-//             reason_description,
-//             self.excerpt_visible_offsets(required_languages.as_ref(), cx),
-//             invalidate_cache,
-//             cx,
-//         ) {
-//             self.splice_inlay_hints(to_remove, to_insert, cx);
-//         }
-//     }
-
-//     fn visible_inlay_hints(&self, cx: &ViewContext<'_, '_, Editor>) -> Vec<Inlay> {
-//         self.display_map
-//             .read(cx)
-//             .current_inlays()
-//             .filter(move |inlay| {
-//                 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
-//             })
-//             .cloned()
-//             .collect()
-//     }
-
-//     pub fn excerpt_visible_offsets(
-//         &self,
-//         restrict_to_languages: Option<&HashSet<Arc<Language>>>,
-//         cx: &mut ViewContext<'_, '_, Editor>,
-//     ) -> HashMap<ExcerptId, (Model<Buffer>, Global, Range<usize>)> {
-//         let multi_buffer = self.buffer().read(cx);
-//         let multi_buffer_snapshot = multi_buffer.snapshot(cx);
-//         let multi_buffer_visible_start = self
-//             .scroll_manager
-//             .anchor()
-//             .anchor
-//             .to_point(&multi_buffer_snapshot);
-//         let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
-//             multi_buffer_visible_start
-//                 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
-//             Bias::Left,
-//         );
-//         let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
-//         multi_buffer
-//             .range_to_buffer_ranges(multi_buffer_visible_range, cx)
-//             .into_iter()
-//             .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
-//             .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
-//                 let buffer = buffer_handle.read(cx);
-//                 let language = buffer.language()?;
-//                 if let Some(restrict_to_languages) = restrict_to_languages {
-//                     if !restrict_to_languages.contains(language) {
-//                         return None;
-//                     }
-//                 }
-//                 Some((
-//                     excerpt_id,
-//                     (
-//                         buffer_handle,
-//                         buffer.version().clone(),
-//                         excerpt_visible_range,
-//                     ),
-//                 ))
-//             })
-//             .collect()
-//     }
-
-//     pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
-//         TextLayoutDetails {
-//             font_cache: cx.font_cache().clone(),
-//             text_layout_cache: cx.text_layout_cache().clone(),
-//             editor_style: self.style(cx),
-//         }
-//     }
-
-//     fn splice_inlay_hints(
-//         &self,
-//         to_remove: Vec<InlayId>,
-//         to_insert: Vec<Inlay>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.display_map.update(cx, |display_map, cx| {
-//             display_map.splice_inlays(to_remove, to_insert, cx);
-//         });
-//         cx.notify();
-//     }
-
-//     fn trigger_on_type_formatting(
-//         &self,
-//         input: String,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<Task<Result<()>>> {
-//         if input.len() != 1 {
-//             return None;
-//         }
-
-//         let project = self.project.as_ref()?;
-//         let position = self.selections.newest_anchor().head();
-//         let (buffer, buffer_position) = self
-//             .buffer
-//             .read(cx)
-//             .text_anchor_for_position(position.clone(), cx)?;
-
-//         // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
-//         // hence we do LSP request & edit on host side only — add formats to host's history.
-//         let push_to_lsp_host_history = true;
-//         // If this is not the host, append its history with new edits.
-//         let push_to_client_history = project.read(cx).is_remote();
-
-//         let on_type_formatting = project.update(cx, |project, cx| {
-//             project.on_type_format(
-//                 buffer.clone(),
-//                 buffer_position,
-//                 input,
-//                 push_to_lsp_host_history,
-//                 cx,
-//             )
-//         });
-//         Some(cx.spawn(|editor, mut cx| async move {
-//             if let Some(transaction) = on_type_formatting.await? {
-//                 if push_to_client_history {
-//                     buffer.update(&mut cx, |buffer, _| {
-//                         buffer.push_transaction(transaction, Instant::now());
-//                     });
-//                 }
-//                 editor.update(&mut cx, |editor, cx| {
-//                     editor.refresh_document_highlights(cx);
-//                 })?;
-//             }
-//             Ok(())
-//         }))
-//     }
-
-//     fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
-//         if self.pending_rename.is_some() {
-//             return;
-//         }
-
-//         let project = if let Some(project) = self.project.clone() {
-//             project
-//         } else {
-//             return;
-//         };
-
-//         let position = self.selections.newest_anchor().head();
-//         let (buffer, buffer_position) = if let Some(output) = self
-//             .buffer
-//             .read(cx)
-//             .text_anchor_for_position(position.clone(), cx)
-//         {
-//             output
-//         } else {
-//             return;
-//         };
-
-//         let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
-//         let completions = project.update(cx, |project, cx| {
-//             project.completions(&buffer, buffer_position, cx)
-//         });
-
-//         let id = post_inc(&mut self.next_completion_id);
-//         let task = cx.spawn(|this, mut cx| {
-//             async move {
-//                 let menu = if let Some(completions) = completions.await.log_err() {
-//                     let mut menu = CompletionsMenu {
-//                         id,
-//                         initial_position: position,
-//                         match_candidates: completions
-//                             .iter()
-//                             .enumerate()
-//                             .map(|(id, completion)| {
-//                                 StringMatchCandidate::new(
-//                                     id,
-//                                     completion.label.text[completion.label.filter_range.clone()]
-//                                         .into(),
-//                                 )
-//                             })
-//                             .collect(),
-//                         buffer,
-//                         completions: Arc::new(RwLock::new(completions.into())),
-//                         matches: Vec::new().into(),
-//                         selected_item: 0,
-//                         list: Default::default(),
-//                     };
-//                     menu.filter(query.as_deref(), cx.background()).await;
-//                     if menu.matches.is_empty() {
-//                         None
-//                     } else {
-//                         _ = this.update(&mut cx, |editor, cx| {
-//                             menu.pre_resolve_completion_documentation(editor.project.clone(), cx);
-//                         });
-//                         Some(menu)
-//                     }
-//                 } else {
-//                     None
-//                 };
-
-//                 this.update(&mut cx, |this, cx| {
-//                     this.completion_tasks.retain(|(task_id, _)| *task_id > id);
-
-//                     let mut context_menu = this.context_menu.write();
-//                     match context_menu.as_ref() {
-//                         None => {}
-
-//                         Some(ContextMenu::Completions(prev_menu)) => {
-//                             if prev_menu.id > id {
-//                                 return;
-//                             }
-//                         }
-
-//                         _ => return,
-//                     }
-
-//                     if this.focused && menu.is_some() {
-//                         let menu = menu.unwrap();
-//                         *context_menu = Some(ContextMenu::Completions(menu));
-//                         drop(context_menu);
-//                         this.discard_copilot_suggestion(cx);
-//                         cx.notify();
-//                     } else if this.completion_tasks.is_empty() {
-//                         // If there are no more completion tasks and the last menu was
-//                         // empty, we should hide it. If it was already hidden, we should
-//                         // also show the copilot suggestion when available.
-//                         drop(context_menu);
-//                         if this.hide_context_menu(cx).is_none() {
-//                             this.update_visible_copilot_suggestion(cx);
-//                         }
-//                     }
-//                 })?;
-
-//                 Ok::<_, anyhow::Error>(())
-//             }
-//             .log_err()
-//         });
-//         self.completion_tasks.push((id, task));
-//     }
-
-//     pub fn confirm_completion(
-//         &mut self,
-//         action: &ConfirmCompletion,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<Task<Result<()>>> {
-//         use language::ToOffset as _;
-
-//         let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
-//             menu
-//         } else {
-//             return None;
-//         };
-
-//         let mat = completions_menu
-//             .matches
-//             .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
-//         let buffer_handle = completions_menu.buffer;
-//         let completions = completions_menu.completions.read();
-//         let completion = completions.get(mat.candidate_id)?;
-
-//         let snippet;
-//         let text;
-//         if completion.is_snippet() {
-//             snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
-//             text = snippet.as_ref().unwrap().text.clone();
-//         } else {
-//             snippet = None;
-//             text = completion.new_text.clone();
-//         };
-//         let selections = self.selections.all::<usize>(cx);
-//         let buffer = buffer_handle.read(cx);
-//         let old_range = completion.old_range.to_offset(buffer);
-//         let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
-
-//         let newest_selection = self.selections.newest_anchor();
-//         if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
-//             return None;
-//         }
-
-//         let lookbehind = newest_selection
-//             .start
-//             .text_anchor
-//             .to_offset(buffer)
-//             .saturating_sub(old_range.start);
-//         let lookahead = old_range
-//             .end
-//             .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
-//         let mut common_prefix_len = old_text
-//             .bytes()
-//             .zip(text.bytes())
-//             .take_while(|(a, b)| a == b)
-//             .count();
-
-//         let snapshot = self.buffer.read(cx).snapshot(cx);
-//         let mut range_to_replace: Option<Range<isize>> = None;
-//         let mut ranges = Vec::new();
-//         for selection in &selections {
-//             if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
-//                 let start = selection.start.saturating_sub(lookbehind);
-//                 let end = selection.end + lookahead;
-//                 if selection.id == newest_selection.id {
-//                     range_to_replace = Some(
-//                         ((start + common_prefix_len) as isize - selection.start as isize)
-//                             ..(end as isize - selection.start as isize),
-//                     );
-//                 }
-//                 ranges.push(start + common_prefix_len..end);
-//             } else {
-//                 common_prefix_len = 0;
-//                 ranges.clear();
-//                 ranges.extend(selections.iter().map(|s| {
-//                     if s.id == newest_selection.id {
-//                         range_to_replace = Some(
-//                             old_range.start.to_offset_utf16(&snapshot).0 as isize
-//                                 - selection.start as isize
-//                                 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
-//                                     - selection.start as isize,
-//                         );
-//                         old_range.clone()
-//                     } else {
-//                         s.start..s.end
-//                     }
-//                 }));
-//                 break;
-//             }
-//         }
-//         let text = &text[common_prefix_len..];
-
-//         cx.emit(Event::InputHandled {
-//             utf16_range_to_replace: range_to_replace,
-//             text: text.into(),
-//         });
-
-//         self.transact(cx, |this, cx| {
-//             if let Some(mut snippet) = snippet {
-//                 snippet.text = text.to_string();
-//                 for tabstop in snippet.tabstops.iter_mut().flatten() {
-//                     tabstop.start -= common_prefix_len as isize;
-//                     tabstop.end -= common_prefix_len as isize;
-//                 }
-
-//                 this.insert_snippet(&ranges, snippet, cx).log_err();
-//             } else {
-//                 this.buffer.update(cx, |buffer, cx| {
-//                     buffer.edit(
-//                         ranges.iter().map(|range| (range.clone(), text)),
-//                         this.autoindent_mode.clone(),
-//                         cx,
-//                     );
-//                 });
-//             }
-
-//             this.refresh_copilot_suggestions(true, cx);
-//         });
-
-//         let project = self.project.clone()?;
-//         let apply_edits = project.update(cx, |project, cx| {
-//             project.apply_additional_edits_for_completion(
-//                 buffer_handle,
-//                 completion.clone(),
-//                 true,
-//                 cx,
-//             )
-//         });
-//         Some(cx.foreground().spawn(async move {
-//             apply_edits.await?;
-//             Ok(())
-//         }))
-//     }
-
-//     pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
-//         let mut context_menu = self.context_menu.write();
-//         if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
-//             *context_menu = None;
-//             cx.notify();
-//             return;
-//         }
-//         drop(context_menu);
-
-//         let deployed_from_indicator = action.deployed_from_indicator;
-//         let mut task = self.code_actions_task.take();
-//         cx.spawn(|this, mut cx| async move {
-//             while let Some(prev_task) = task {
-//                 prev_task.await;
-//                 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
-//             }
-
-//             this.update(&mut cx, |this, cx| {
-//                 if this.focused {
-//                     if let Some((buffer, actions)) = this.available_code_actions.clone() {
-//                         this.completion_tasks.clear();
-//                         this.discard_copilot_suggestion(cx);
-//                         *this.context_menu.write() =
-//                             Some(ContextMenu::CodeActions(CodeActionsMenu {
-//                                 buffer,
-//                                 actions,
-//                                 selected_item: Default::default(),
-//                                 list: Default::default(),
-//                                 deployed_from_indicator,
-//                             }));
-//                     }
-//                 }
-//             })?;
-
-//             Ok::<_, anyhow::Error>(())
-//         })
-//         .detach_and_log_err(cx);
-//     }
-
-//     pub fn confirm_code_action(
-//         workspace: &mut Workspace,
-//         action: &ConfirmCodeAction,
-//         cx: &mut ViewContext<Workspace>,
-//     ) -> Option<Task<Result<()>>> {
-//         let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
-//         let actions_menu = if let ContextMenu::CodeActions(menu) =
-//             editor.update(cx, |editor, cx| editor.hide_context_menu(cx))?
-//         {
-//             menu
-//         } else {
-//             return None;
-//         };
-//         let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
-//         let action = actions_menu.actions.get(action_ix)?.clone();
-//         let title = action.lsp_action.title.clone();
-//         let buffer = actions_menu.buffer;
-
-//         let apply_code_actions = workspace.project().clone().update(cx, |project, cx| {
-//             project.apply_code_action(buffer, action, true, cx)
-//         });
-//         let editor = editor.downgrade();
-//         Some(cx.spawn(|workspace, cx| async move {
-//             let project_transaction = apply_code_actions.await?;
-//             Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
-//         }))
-//     }
-
-//     async fn open_project_transaction(
-//         this: &WeakViewHandle<Editor
-//         workspace: WeakViewHandle<Workspace
-//         transaction: ProjectTransaction,
-//         title: String,
-//         mut cx: AsyncAppContext,
-//     ) -> Result<()> {
-//         let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx))?;
-
-//         let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
-//         entries.sort_unstable_by_key(|(buffer, _)| {
-//             buffer.read_with(&cx, |buffer, _| buffer.file().map(|f| f.path().clone()))
-//         });
-
-//         // If the project transaction's edits are all contained within this editor, then
-//         // avoid opening a new editor to display them.
-
-//         if let Some((buffer, transaction)) = entries.first() {
-//             if entries.len() == 1 {
-//                 let excerpt = this.read_with(&cx, |editor, cx| {
-//                     editor
-//                         .buffer()
-//                         .read(cx)
-//                         .excerpt_containing(editor.selections.newest_anchor().head(), cx)
-//                 })?;
-//                 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
-//                     if excerpted_buffer == *buffer {
-//                         let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
-//                             let excerpt_range = excerpt_range.to_offset(buffer);
-//                             buffer
-//                                 .edited_ranges_for_transaction::<usize>(transaction)
-//                                 .all(|range| {
-//                                     excerpt_range.start <= range.start
-//                                         && excerpt_range.end >= range.end
-//                                 })
-//                         });
-
-//                         if all_edits_within_excerpt {
-//                             return Ok(());
-//                         }
-//                     }
-//                 }
-//             }
-//         } else {
-//             return Ok(());
-//         }
-
-//         let mut ranges_to_highlight = Vec::new();
-//         let excerpt_buffer = cx.add_model(|cx| {
-//             let mut multibuffer = MultiBuffer::new(replica_id).with_title(title);
-//             for (buffer_handle, transaction) in &entries {
-//                 let buffer = buffer_handle.read(cx);
-//                 ranges_to_highlight.extend(
-//                     multibuffer.push_excerpts_with_context_lines(
-//                         buffer_handle.clone(),
-//                         buffer
-//                             .edited_ranges_for_transaction::<usize>(transaction)
-//                             .collect(),
-//                         1,
-//                         cx,
-//                     ),
-//                 );
-//             }
-//             multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
-//             multibuffer
-//         });
-
-//         workspace.update(&mut cx, |workspace, cx| {
-//             let project = workspace.project().clone();
-//             let editor =
-//                 cx.add_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
-//             workspace.add_item(Box::new(editor.clone()), cx);
-//             editor.update(cx, |editor, cx| {
-//                 editor.highlight_background::<Self>(
-//                     ranges_to_highlight,
-//                     |theme| theme.editor.highlighted_line_background,
-//                     cx,
-//                 );
-//             });
-//         })?;
-
-//         Ok(())
-//     }
-
-//     fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
-//         let project = self.project.clone()?;
-//         let buffer = self.buffer.read(cx);
-//         let newest_selection = self.selections.newest_anchor().clone();
-//         let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
-//         let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
-//         if start_buffer != end_buffer {
-//             return None;
-//         }
-
-//         self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
-//             cx.background().timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT).await;
-
-//             let actions = project
-//                 .update(&mut cx, |project, cx| {
-//                     project.code_actions(&start_buffer, start..end, cx)
-//                 })
-//                 .await;
-
-//             this.update(&mut cx, |this, cx| {
-//                 this.available_code_actions = actions.log_err().and_then(|actions| {
-//                     if actions.is_empty() {
-//                         None
-//                     } else {
-//                         Some((start_buffer, actions.into()))
-//                     }
-//                 });
-//                 cx.notify();
-//             })
-//             .log_err();
-//         }));
-//         None
-//     }
-
-//     fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
-//         if self.pending_rename.is_some() {
-//             return None;
-//         }
-
-//         let project = self.project.clone()?;
-//         let buffer = self.buffer.read(cx);
-//         let newest_selection = self.selections.newest_anchor().clone();
-//         let cursor_position = newest_selection.head();
-//         let (cursor_buffer, cursor_buffer_position) =
-//             buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
-//         let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
-//         if cursor_buffer != tail_buffer {
-//             return None;
-//         }
-
-//         self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
-//             cx.background()
-//                 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
-//                 .await;
-
-//             let highlights = project
-//                 .update(&mut cx, |project, cx| {
-//                     project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
-//                 })
-//                 .await
-//                 .log_err();
-
-//             if let Some(highlights) = highlights {
-//                 this.update(&mut cx, |this, cx| {
-//                     if this.pending_rename.is_some() {
-//                         return;
-//                     }
-
-//                     let buffer_id = cursor_position.buffer_id;
-//                     let buffer = this.buffer.read(cx);
-//                     if !buffer
-//                         .text_anchor_for_position(cursor_position, cx)
-//                         .map_or(false, |(buffer, _)| buffer == cursor_buffer)
-//                     {
-//                         return;
-//                     }
-
-//                     let cursor_buffer_snapshot = cursor_buffer.read(cx);
-//                     let mut write_ranges = Vec::new();
-//                     let mut read_ranges = Vec::new();
-//                     for highlight in highlights {
-//                         for (excerpt_id, excerpt_range) in
-//                             buffer.excerpts_for_buffer(&cursor_buffer, cx)
-//                         {
-//                             let start = highlight
-//                                 .range
-//                                 .start
-//                                 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
-//                             let end = highlight
-//                                 .range
-//                                 .end
-//                                 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
-//                             if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
-//                                 continue;
-//                             }
-
-//                             let range = Anchor {
-//                                 buffer_id,
-//                                 excerpt_id: excerpt_id.clone(),
-//                                 text_anchor: start,
-//                             }..Anchor {
-//                                 buffer_id,
-//                                 excerpt_id,
-//                                 text_anchor: end,
-//                             };
-//                             if highlight.kind == lsp::DocumentHighlightKind::WRITE {
-//                                 write_ranges.push(range);
-//                             } else {
-//                                 read_ranges.push(range);
-//                             }
-//                         }
-//                     }
-
-//                     this.highlight_background::<DocumentHighlightRead>(
-//                         read_ranges,
-//                         |theme| theme.editor.document_highlight_read_background,
-//                         cx,
-//                     );
-//                     this.highlight_background::<DocumentHighlightWrite>(
-//                         write_ranges,
-//                         |theme| theme.editor.document_highlight_write_background,
-//                         cx,
-//                     );
-//                     cx.notify();
-//                 })
-//                 .log_err();
-//             }
-//         }));
-//         None
-//     }
-
-//     fn refresh_copilot_suggestions(
-//         &mut self,
-//         debounce: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<()> {
-//         let copilot = Copilot::global(cx)?;
-//         if self.mode != EditorMode::Full || !copilot.read(cx).status().is_authorized() {
-//             self.clear_copilot_suggestions(cx);
-//             return None;
-//         }
-//         self.update_visible_copilot_suggestion(cx);
-
-//         let snapshot = self.buffer.read(cx).snapshot(cx);
-//         let cursor = self.selections.newest_anchor().head();
-//         if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
-//             self.clear_copilot_suggestions(cx);
-//             return None;
-//         }
-
-//         let (buffer, buffer_position) =
-//             self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
-//         self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
-//             if debounce {
-//                 cx.background().timer(COPILOT_DEBOUNCE_TIMEOUT).await;
-//             }
-
-//             let completions = copilot
-//                 .update(&mut cx, |copilot, cx| {
-//                     copilot.completions(&buffer, buffer_position, cx)
-//                 })
-//                 .await
-//                 .log_err()
-//                 .into_iter()
-//                 .flatten()
-//                 .collect_vec();
-
-//             this.update(&mut cx, |this, cx| {
-//                 if !completions.is_empty() {
-//                     this.copilot_state.cycled = false;
-//                     this.copilot_state.pending_cycling_refresh = Task::ready(None);
-//                     this.copilot_state.completions.clear();
-//                     this.copilot_state.active_completion_index = 0;
-//                     this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
-//                     for completion in completions {
-//                         this.copilot_state.push_completion(completion);
-//                     }
-//                     this.update_visible_copilot_suggestion(cx);
-//                 }
-//             })
-//             .log_err()?;
-//             Some(())
-//         });
-
-//         Some(())
-//     }
-
-//     fn cycle_copilot_suggestions(
-//         &mut self,
-//         direction: Direction,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<()> {
-//         let copilot = Copilot::global(cx)?;
-//         if self.mode != EditorMode::Full || !copilot.read(cx).status().is_authorized() {
-//             return None;
-//         }
-
-//         if self.copilot_state.cycled {
-//             self.copilot_state.cycle_completions(direction);
-//             self.update_visible_copilot_suggestion(cx);
-//         } else {
-//             let cursor = self.selections.newest_anchor().head();
-//             let (buffer, buffer_position) =
-//                 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
-//             self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
-//                 let completions = copilot
-//                     .update(&mut cx, |copilot, cx| {
-//                         copilot.completions_cycling(&buffer, buffer_position, cx)
-//                     })
-//                     .await;
-
-//                 this.update(&mut cx, |this, cx| {
-//                     this.copilot_state.cycled = true;
-//                     for completion in completions.log_err().into_iter().flatten() {
-//                         this.copilot_state.push_completion(completion);
-//                     }
-//                     this.copilot_state.cycle_completions(direction);
-//                     this.update_visible_copilot_suggestion(cx);
-//                 })
-//                 .log_err()?;
-
-//                 Some(())
-//             });
-//         }
-
-//         Some(())
-//     }
-
-//     fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
-//         if !self.has_active_copilot_suggestion(cx) {
-//             self.refresh_copilot_suggestions(false, cx);
-//             return;
-//         }
-
-//         self.update_visible_copilot_suggestion(cx);
-//     }
-
-//     fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
-//         if self.has_active_copilot_suggestion(cx) {
-//             self.cycle_copilot_suggestions(Direction::Next, cx);
-//         } else {
-//             let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
-//             if is_copilot_disabled {
-//                 cx.propagate_action();
-//             }
-//         }
-//     }
-
-//     fn previous_copilot_suggestion(
-//         &mut self,
-//         _: &copilot::PreviousSuggestion,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if self.has_active_copilot_suggestion(cx) {
-//             self.cycle_copilot_suggestions(Direction::Prev, cx);
-//         } else {
-//             let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
-//             if is_copilot_disabled {
-//                 cx.propagate_action();
-//             }
-//         }
-//     }
-
-//     fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
-//         if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
-//             if let Some((copilot, completion)) =
-//                 Copilot::global(cx).zip(self.copilot_state.active_completion())
-//             {
-//                 copilot
-//                     .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
-//                     .detach_and_log_err(cx);
-
-//                 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
-//             }
-//             cx.emit(Event::InputHandled {
-//                 utf16_range_to_replace: None,
-//                 text: suggestion.text.to_string().into(),
-//             });
-//             self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
-//             cx.notify();
-//             true
-//         } else {
-//             false
-//         }
-//     }
-
-//     fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
-//         if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
-//             if let Some(copilot) = Copilot::global(cx) {
-//                 copilot
-//                     .update(cx, |copilot, cx| {
-//                         copilot.discard_completions(&self.copilot_state.completions, cx)
-//                     })
-//                     .detach_and_log_err(cx);
-
-//                 self.report_copilot_event(None, false, cx)
-//             }
-
-//             self.display_map.update(cx, |map, cx| {
-//                 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
-//             });
-//             cx.notify();
-//             true
-//         } else {
-//             false
-//         }
-//     }
-
-//     fn is_copilot_enabled_at(
-//         &self,
-//         location: Anchor,
-//         snapshot: &MultiBufferSnapshot,
-//         cx: &mut ViewContext<Self>,
-//     ) -> bool {
-//         let file = snapshot.file_at(location);
-//         let language = snapshot.language_at(location);
-//         let settings = all_language_settings(file, cx);
-//         settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
-//     }
-
-//     fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
-//         if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
-//             let buffer = self.buffer.read(cx).read(cx);
-//             suggestion.position.is_valid(&buffer)
-//         } else {
-//             false
-//         }
-//     }
-
-//     fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
-//         let suggestion = self.copilot_state.suggestion.take()?;
-//         self.display_map.update(cx, |map, cx| {
-//             map.splice_inlays(vec![suggestion.id], Default::default(), cx);
-//         });
-//         let buffer = self.buffer.read(cx).read(cx);
-
-//         if suggestion.position.is_valid(&buffer) {
-//             Some(suggestion)
-//         } else {
-//             None
-//         }
-//     }
-
-//     fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
-//         let snapshot = self.buffer.read(cx).snapshot(cx);
-//         let selection = self.selections.newest_anchor();
-//         let cursor = selection.head();
-
-//         if self.context_menu.read().is_some()
-//             || !self.completion_tasks.is_empty()
-//             || selection.start != selection.end
-//         {
-//             self.discard_copilot_suggestion(cx);
-//         } else if let Some(text) = self
-//             .copilot_state
-//             .text_for_active_completion(cursor, &snapshot)
-//         {
-//             let text = Rope::from(text);
-//             let mut to_remove = Vec::new();
-//             if let Some(suggestion) = self.copilot_state.suggestion.take() {
-//                 to_remove.push(suggestion.id);
-//             }
-
-//             let suggestion_inlay =
-//                 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
-//             self.copilot_state.suggestion = Some(suggestion_inlay.clone());
-//             self.display_map.update(cx, move |map, cx| {
-//                 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
-//             });
-//             cx.notify();
-//         } else {
-//             self.discard_copilot_suggestion(cx);
-//         }
-//     }
-
-//     fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
-//         self.copilot_state = Default::default();
-//         self.discard_copilot_suggestion(cx);
-//     }
-
-//     pub fn render_code_actions_indicator(
-//         &self,
-//         style: &EditorStyle,
-//         is_active: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<AnyElement<Self>> {
-//         if self.available_code_actions.is_some() {
-//             enum CodeActions {}
-//             Some(
-//                 MouseEventHandler::new::<CodeActions, _>(0, cx, |state, _| {
-//                     Svg::new("icons/bolt.svg").with_color(
-//                         style
-//                             .code_actions
-//                             .indicator
-//                             .in_state(is_active)
-//                             .style_for(state)
-//                             .color,
-//                     )
-//                 })
-//                 .with_cursor_style(CursorStyle::PointingHand)
-//                 .with_padding(Padding::uniform(3.))
-//                 .on_down(MouseButton::Left, |_, this, cx| {
-//                     this.toggle_code_actions(
-//                         &ToggleCodeActions {
-//                             deployed_from_indicator: true,
-//                         },
-//                         cx,
-//                     );
-//                 })
-//                 .into_any(),
-//             )
-//         } else {
-//             None
-//         }
-//     }
-
-//     pub fn render_fold_indicators(
-//         &self,
-//         fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
-//         style: &EditorStyle,
-//         gutter_hovered: bool,
-//         line_height: f32,
-//         gutter_margin: f32,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Vec<Option<AnyElement<Self>>> {
-//         enum FoldIndicators {}
-
-//         let style = style.folds.clone();
-
-//         fold_data
-//             .iter()
-//             .enumerate()
-//             .map(|(ix, fold_data)| {
-//                 fold_data
-//                     .map(|(fold_status, buffer_row, active)| {
-//                         (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
-//                             MouseEventHandler::new::<FoldIndicators, _>(
-//                                 ix as usize,
-//                                 cx,
-//                                 |mouse_state, _| {
-//                                     Svg::new(match fold_status {
-//                                         FoldStatus::Folded => style.folded_icon.clone(),
-//                                         FoldStatus::Foldable => style.foldable_icon.clone(),
-//                                     })
-//                                     .with_color(
-//                                         style
-//                                             .indicator
-//                                             .in_state(fold_status == FoldStatus::Folded)
-//                                             .style_for(mouse_state)
-//                                             .color,
-//                                     )
-//                                     .constrained()
-//                                     .with_width(gutter_margin * style.icon_margin_scale)
-//                                     .aligned()
-//                                     .constrained()
-//                                     .with_height(line_height)
-//                                     .with_width(gutter_margin)
-//                                     .aligned()
-//                                 },
-//                             )
-//                             .with_cursor_style(CursorStyle::PointingHand)
-//                             .with_padding(Padding::uniform(3.))
-//                             .on_click(MouseButton::Left, {
-//                                 move |_, editor, cx| match fold_status {
-//                                     FoldStatus::Folded => {
-//                                         editor.unfold_at(&UnfoldAt { buffer_row }, cx);
-//                                     }
-//                                     FoldStatus::Foldable => {
-//                                         editor.fold_at(&FoldAt { buffer_row }, cx);
-//                                     }
-//                                 }
-//                             })
-//                             .into_any()
-//                         })
-//                     })
-//                     .flatten()
-//             })
-//             .collect()
-//     }
-
-//     pub fn context_menu_visible(&self) -> bool {
-//         self.context_menu
-//             .read()
-//             .as_ref()
-//             .map_or(false, |menu| menu.visible())
-//     }
-
-//     pub fn render_context_menu(
-//         &self,
-//         cursor_position: DisplayPoint,
-//         style: EditorStyle,
-//         cx: &mut ViewContext<Editor>,
-//     ) -> Option<(DisplayPoint, AnyElement<Editor>)> {
-//         self.context_menu.read().as_ref().map(|menu| {
-//             menu.render(
-//                 cursor_position,
-//                 style,
-//                 self.workspace.as_ref().map(|(w, _)| w.clone()),
-//                 cx,
-//             )
-//         })
-//     }
-
-//     fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
-//         cx.notify();
-//         self.completion_tasks.clear();
-//         let context_menu = self.context_menu.write().take();
-//         if context_menu.is_some() {
-//             self.update_visible_copilot_suggestion(cx);
-//         }
-//         context_menu
-//     }
-
-//     pub fn insert_snippet(
-//         &mut self,
-//         insertion_ranges: &[Range<usize>],
-//         snippet: Snippet,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Result<()> {
-//         let tabstops = self.buffer.update(cx, |buffer, cx| {
-//             let snippet_text: Arc<str> = snippet.text.clone().into();
-//             buffer.edit(
-//                 insertion_ranges
-//                     .iter()
-//                     .cloned()
-//                     .map(|range| (range, snippet_text.clone())),
-//                 Some(AutoindentMode::EachLine),
-//                 cx,
-//             );
-
-//             let snapshot = &*buffer.read(cx);
-//             let snippet = &snippet;
-//             snippet
-//                 .tabstops
-//                 .iter()
-//                 .map(|tabstop| {
-//                     let mut tabstop_ranges = tabstop
-//                         .iter()
-//                         .flat_map(|tabstop_range| {
-//                             let mut delta = 0_isize;
-//                             insertion_ranges.iter().map(move |insertion_range| {
-//                                 let insertion_start = insertion_range.start as isize + delta;
-//                                 delta +=
-//                                     snippet.text.len() as isize - insertion_range.len() as isize;
-
-//                                 let start = snapshot.anchor_before(
-//                                     (insertion_start + tabstop_range.start) as usize,
-//                                 );
-//                                 let end = snapshot
-//                                     .anchor_after((insertion_start + tabstop_range.end) as usize);
-//                                 start..end
-//                             })
-//                         })
-//                         .collect::<Vec<_>>();
-//                     tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
-//                     tabstop_ranges
-//                 })
-//                 .collect::<Vec<_>>()
-//         });
-
-//         if let Some(tabstop) = tabstops.first() {
-//             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select_ranges(tabstop.iter().cloned());
-//             });
-//             self.snippet_stack.push(SnippetState {
-//                 active_index: 0,
-//                 ranges: tabstops,
-//             });
-//         }
-
-//         Ok(())
-//     }
-
-//     pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
-//         self.move_to_snippet_tabstop(Bias::Right, cx)
-//     }
-
-//     pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
-//         self.move_to_snippet_tabstop(Bias::Left, cx)
-//     }
-
-//     pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
-//         if let Some(mut snippet) = self.snippet_stack.pop() {
-//             match bias {
-//                 Bias::Left => {
-//                     if snippet.active_index > 0 {
-//                         snippet.active_index -= 1;
-//                     } else {
-//                         self.snippet_stack.push(snippet);
-//                         return false;
-//                     }
-//                 }
-//                 Bias::Right => {
-//                     if snippet.active_index + 1 < snippet.ranges.len() {
-//                         snippet.active_index += 1;
-//                     } else {
-//                         self.snippet_stack.push(snippet);
-//                         return false;
-//                     }
-//                 }
-//             }
-//             if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
-//                 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                     s.select_anchor_ranges(current_ranges.iter().cloned())
-//                 });
-//                 // If snippet state is not at the last tabstop, push it back on the stack
-//                 if snippet.active_index + 1 < snippet.ranges.len() {
-//                     self.snippet_stack.push(snippet);
-//                 }
-//                 return true;
-//             }
-//         }
-
-//         false
-//     }
-
-//     pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.select_all(&SelectAll, cx);
-//             this.insert("", cx);
-//         });
-//     }
-
-//     pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.select_autoclose_pair(cx);
-//             let mut selections = this.selections.all::<Point>(cx);
-//             if !this.selections.line_mode {
-//                 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
-//                 for selection in &mut selections {
-//                     if selection.is_empty() {
-//                         let old_head = selection.head();
-//                         let mut new_head =
-//                             movement::left(&display_map, old_head.to_display_point(&display_map))
-//                                 .to_point(&display_map);
-//                         if let Some((buffer, line_buffer_range)) = display_map
-//                             .buffer_snapshot
-//                             .buffer_line_for_row(old_head.row)
-//                         {
-//                             let indent_size =
-//                                 buffer.indent_size_for_line(line_buffer_range.start.row);
-//                             let indent_len = match indent_size.kind {
-//                                 IndentKind::Space => {
-//                                     buffer.settings_at(line_buffer_range.start, cx).tab_size
-//                                 }
-//                                 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
-//                             };
-//                             if old_head.column <= indent_size.len && old_head.column > 0 {
-//                                 let indent_len = indent_len.get();
-//                                 new_head = cmp::min(
-//                                     new_head,
-//                                     Point::new(
-//                                         old_head.row,
-//                                         ((old_head.column - 1) / indent_len) * indent_len,
-//                                     ),
-//                                 );
-//                             }
-//                         }
-
-//                         selection.set_head(new_head, SelectionGoal::None);
-//                     }
-//                 }
-//             }
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-//             this.insert("", cx);
-//             this.refresh_copilot_suggestions(true, cx);
-//         });
-//     }
-
-//     pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let line_mode = s.line_mode;
-//                 s.move_with(|map, selection| {
-//                     if selection.is_empty() && !line_mode {
-//                         let cursor = movement::right(map, selection.head());
-//                         selection.end = cursor;
-//                         selection.reversed = true;
-//                         selection.goal = SelectionGoal::None;
-//                     }
-//                 })
-//             });
-//             this.insert("", cx);
-//             this.refresh_copilot_suggestions(true, cx);
-//         });
-//     }
-
-//     pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
-//         if self.move_to_prev_snippet_tabstop(cx) {
-//             return;
-//         }
-
-//         self.outdent(&Outdent, cx);
-//     }
-
-//     pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
-//         if self.move_to_next_snippet_tabstop(cx) {
-//             return;
-//         }
-
-//         let mut selections = self.selections.all_adjusted(cx);
-//         let buffer = self.buffer.read(cx);
-//         let snapshot = buffer.snapshot(cx);
-//         let rows_iter = selections.iter().map(|s| s.head().row);
-//         let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
-
-//         let mut edits = Vec::new();
-//         let mut prev_edited_row = 0;
-//         let mut row_delta = 0;
-//         for selection in &mut selections {
-//             if selection.start.row != prev_edited_row {
-//                 row_delta = 0;
-//             }
-//             prev_edited_row = selection.end.row;
-
-//             // If the selection is non-empty, then increase the indentation of the selected lines.
-//             if !selection.is_empty() {
-//                 row_delta =
-//                     Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
-//                 continue;
-//             }
-
-//             // If the selection is empty and the cursor is in the leading whitespace before the
-//             // suggested indentation, then auto-indent the line.
-//             let cursor = selection.head();
-//             let current_indent = snapshot.indent_size_for_line(cursor.row);
-//             if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
-//                 if cursor.column < suggested_indent.len
-//                     && cursor.column <= current_indent.len
-//                     && current_indent.len <= suggested_indent.len
-//                 {
-//                     selection.start = Point::new(cursor.row, suggested_indent.len);
-//                     selection.end = selection.start;
-//                     if row_delta == 0 {
-//                         edits.extend(Buffer::edit_for_indent_size_adjustment(
-//                             cursor.row,
-//                             current_indent,
-//                             suggested_indent,
-//                         ));
-//                         row_delta = suggested_indent.len - current_indent.len;
-//                     }
-//                     continue;
-//                 }
-//             }
-
-//             // Accept copilot suggestion if there is only one selection and the cursor is not
-//             // in the leading whitespace.
-//             if self.selections.count() == 1
-//                 && cursor.column >= current_indent.len
-//                 && self.has_active_copilot_suggestion(cx)
-//             {
-//                 self.accept_copilot_suggestion(cx);
-//                 return;
-//             }
-
-//             // Otherwise, insert a hard or soft tab.
-//             let settings = buffer.settings_at(cursor, cx);
-//             let tab_size = if settings.hard_tabs {
-//                 IndentSize::tab()
-//             } else {
-//                 let tab_size = settings.tab_size.get();
-//                 let char_column = snapshot
-//                     .text_for_range(Point::new(cursor.row, 0)..cursor)
-//                     .flat_map(str::chars)
-//                     .count()
-//                     + row_delta as usize;
-//                 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
-//                 IndentSize::spaces(chars_to_next_tab_stop)
-//             };
-//             selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
-//             selection.end = selection.start;
-//             edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
-//             row_delta += tab_size.len;
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-//             this.refresh_copilot_suggestions(true, cx);
-//         });
-//     }
-
-//     pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
-//         let mut selections = self.selections.all::<Point>(cx);
-//         let mut prev_edited_row = 0;
-//         let mut row_delta = 0;
-//         let mut edits = Vec::new();
-//         let buffer = self.buffer.read(cx);
-//         let snapshot = buffer.snapshot(cx);
-//         for selection in &mut selections {
-//             if selection.start.row != prev_edited_row {
-//                 row_delta = 0;
-//             }
-//             prev_edited_row = selection.end.row;
-
-//             row_delta =
-//                 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-//         });
-//     }
-
-//     fn indent_selection(
-//         buffer: &MultiBuffer,
-//         snapshot: &MultiBufferSnapshot,
-//         selection: &mut Selection<Point>,
-//         edits: &mut Vec<(Range<Point>, String)>,
-//         delta_for_start_row: u32,
-//         cx: &AppContext,
-//     ) -> u32 {
-//         let settings = buffer.settings_at(selection.start, cx);
-//         let tab_size = settings.tab_size.get();
-//         let indent_kind = if settings.hard_tabs {
-//             IndentKind::Tab
-//         } else {
-//             IndentKind::Space
-//         };
-//         let mut start_row = selection.start.row;
-//         let mut end_row = selection.end.row + 1;
-
-//         // If a selection ends at the beginning of a line, don't indent
-//         // that last line.
-//         if selection.end.column == 0 {
-//             end_row -= 1;
-//         }
-
-//         // Avoid re-indenting a row that has already been indented by a
-//         // previous selection, but still update this selection's column
-//         // to reflect that indentation.
-//         if delta_for_start_row > 0 {
-//             start_row += 1;
-//             selection.start.column += delta_for_start_row;
-//             if selection.end.row == selection.start.row {
-//                 selection.end.column += delta_for_start_row;
-//             }
-//         }
-
-//         let mut delta_for_end_row = 0;
-//         for row in start_row..end_row {
-//             let current_indent = snapshot.indent_size_for_line(row);
-//             let indent_delta = match (current_indent.kind, indent_kind) {
-//                 (IndentKind::Space, IndentKind::Space) => {
-//                     let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
-//                     IndentSize::spaces(columns_to_next_tab_stop)
-//                 }
-//                 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
-//                 (_, IndentKind::Tab) => IndentSize::tab(),
-//             };
-
-//             let row_start = Point::new(row, 0);
-//             edits.push((
-//                 row_start..row_start,
-//                 indent_delta.chars().collect::<String>(),
-//             ));
-
-//             // Update this selection's endpoints to reflect the indentation.
-//             if row == selection.start.row {
-//                 selection.start.column += indent_delta.len;
-//             }
-//             if row == selection.end.row {
-//                 selection.end.column += indent_delta.len;
-//                 delta_for_end_row = indent_delta.len;
-//             }
-//         }
-
-//         if selection.start.row == selection.end.row {
-//             delta_for_start_row + delta_for_end_row
-//         } else {
-//             delta_for_end_row
-//         }
-//     }
-
-//     pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let selections = self.selections.all::<Point>(cx);
-//         let mut deletion_ranges = Vec::new();
-//         let mut last_outdent = None;
-//         {
-//             let buffer = self.buffer.read(cx);
-//             let snapshot = buffer.snapshot(cx);
-//             for selection in &selections {
-//                 let settings = buffer.settings_at(selection.start, cx);
-//                 let tab_size = settings.tab_size.get();
-//                 let mut rows = selection.spanned_rows(false, &display_map);
-
-//                 // Avoid re-outdenting a row that has already been outdented by a
-//                 // previous selection.
-//                 if let Some(last_row) = last_outdent {
-//                     if last_row == rows.start {
-//                         rows.start += 1;
-//                     }
-//                 }
-
-//                 for row in rows {
-//                     let indent_size = snapshot.indent_size_for_line(row);
-//                     if indent_size.len > 0 {
-//                         let deletion_len = match indent_size.kind {
-//                             IndentKind::Space => {
-//                                 let columns_to_prev_tab_stop = indent_size.len % tab_size;
-//                                 if columns_to_prev_tab_stop == 0 {
-//                                     tab_size
-//                                 } else {
-//                                     columns_to_prev_tab_stop
-//                                 }
-//                             }
-//                             IndentKind::Tab => 1,
-//                         };
-//                         deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
-//                         last_outdent = Some(row);
-//                     }
-//                 }
-//             }
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |buffer, cx| {
-//                 let empty_str: Arc<str> = "".into();
-//                 buffer.edit(
-//                     deletion_ranges
-//                         .into_iter()
-//                         .map(|range| (range, empty_str.clone())),
-//                     None,
-//                     cx,
-//                 );
-//             });
-//             let selections = this.selections.all::<usize>(cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-//         });
-//     }
-
-//     pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let selections = self.selections.all::<Point>(cx);
-
-//         let mut new_cursors = Vec::new();
-//         let mut edit_ranges = Vec::new();
-//         let mut selections = selections.iter().peekable();
-//         while let Some(selection) = selections.next() {
-//             let mut rows = selection.spanned_rows(false, &display_map);
-//             let goal_display_column = selection.head().to_display_point(&display_map).column();
-
-//             // Accumulate contiguous regions of rows that we want to delete.
-//             while let Some(next_selection) = selections.peek() {
-//                 let next_rows = next_selection.spanned_rows(false, &display_map);
-//                 if next_rows.start <= rows.end {
-//                     rows.end = next_rows.end;
-//                     selections.next().unwrap();
-//                 } else {
-//                     break;
-//                 }
-//             }
-
-//             let buffer = &display_map.buffer_snapshot;
-//             let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
-//             let edit_end;
-//             let cursor_buffer_row;
-//             if buffer.max_point().row >= rows.end {
-//                 // If there's a line after the range, delete the \n from the end of the row range
-//                 // and position the cursor on the next line.
-//                 edit_end = Point::new(rows.end, 0).to_offset(buffer);
-//                 cursor_buffer_row = rows.end;
-//             } else {
-//                 // If there isn't a line after the range, delete the \n from the line before the
-//                 // start of the row range and position the cursor there.
-//                 edit_start = edit_start.saturating_sub(1);
-//                 edit_end = buffer.len();
-//                 cursor_buffer_row = rows.start.saturating_sub(1);
-//             }
-
-//             let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
-//             *cursor.column_mut() =
-//                 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
-
-//             new_cursors.push((
-//                 selection.id,
-//                 buffer.anchor_after(cursor.to_point(&display_map)),
-//             ));
-//             edit_ranges.push(edit_start..edit_end);
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             let buffer = this.buffer.update(cx, |buffer, cx| {
-//                 let empty_str: Arc<str> = "".into();
-//                 buffer.edit(
-//                     edit_ranges
-//                         .into_iter()
-//                         .map(|range| (range, empty_str.clone())),
-//                     None,
-//                     cx,
-//                 );
-//                 buffer.snapshot(cx)
-//             });
-//             let new_selections = new_cursors
-//                 .into_iter()
-//                 .map(|(id, cursor)| {
-//                     let cursor = cursor.to_point(&buffer);
-//                     Selection {
-//                         id,
-//                         start: cursor,
-//                         end: cursor,
-//                         reversed: false,
-//                         goal: SelectionGoal::None,
-//                     }
-//                 })
-//                 .collect();
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(new_selections);
-//             });
-//         });
-//     }
-
-//     pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
-//         let mut row_ranges = Vec::<Range<u32>>::new();
-//         for selection in self.selections.all::<Point>(cx) {
-//             let start = selection.start.row;
-//             let end = if selection.start.row == selection.end.row {
-//                 selection.start.row + 1
-//             } else {
-//                 selection.end.row
-//             };
-
-//             if let Some(last_row_range) = row_ranges.last_mut() {
-//                 if start <= last_row_range.end {
-//                     last_row_range.end = end;
-//                     continue;
-//                 }
-//             }
-//             row_ranges.push(start..end);
-//         }
-
-//         let snapshot = self.buffer.read(cx).snapshot(cx);
-//         let mut cursor_positions = Vec::new();
-//         for row_range in &row_ranges {
-//             let anchor = snapshot.anchor_before(Point::new(
-//                 row_range.end - 1,
-//                 snapshot.line_len(row_range.end - 1),
-//             ));
-//             cursor_positions.push(anchor.clone()..anchor);
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             for row_range in row_ranges.into_iter().rev() {
-//                 for row in row_range.rev() {
-//                     let end_of_line = Point::new(row, snapshot.line_len(row));
-//                     let indent = snapshot.indent_size_for_line(row + 1);
-//                     let start_of_next_line = Point::new(row + 1, indent.len);
-
-//                     let replace = if snapshot.line_len(row + 1) > indent.len {
-//                         " "
-//                     } else {
-//                         ""
-//                     };
-
-//                     this.buffer.update(cx, |buffer, cx| {
-//                         buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
-//                     });
-//                 }
-//             }
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select_anchor_ranges(cursor_positions)
-//             });
-//         });
-//     }
-
-//     pub fn sort_lines_case_sensitive(
-//         &mut self,
-//         _: &SortLinesCaseSensitive,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.manipulate_lines(cx, |lines| lines.sort())
-//     }
-
-//     pub fn sort_lines_case_insensitive(
-//         &mut self,
-//         _: &SortLinesCaseInsensitive,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
-//     }
-
-//     pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
-//         self.manipulate_lines(cx, |lines| lines.reverse())
-//     }
-
-//     pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
-//         self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
-//     }
-
-//     fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
-//     where
-//         Fn: FnMut(&mut [&str]),
-//     {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-
-//         let mut edits = Vec::new();
-
-//         let selections = self.selections.all::<Point>(cx);
-//         let mut selections = selections.iter().peekable();
-//         let mut contiguous_row_selections = Vec::new();
-//         let mut new_selections = Vec::new();
-
-//         while let Some(selection) = selections.next() {
-//             let (start_row, end_row) = consume_contiguous_rows(
-//                 &mut contiguous_row_selections,
-//                 selection,
-//                 &display_map,
-//                 &mut selections,
-//             );
-
-//             let start_point = Point::new(start_row, 0);
-//             let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
-//             let text = buffer
-//                 .text_for_range(start_point..end_point)
-//                 .collect::<String>();
-//             let mut lines = text.split("\n").collect_vec();
-
-//             let lines_len = lines.len();
-//             callback(&mut lines);
-
-//             // This is a current limitation with selections.
-//             // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
-//             debug_assert!(
-//                 lines.len() == lines_len,
-//                 "callback should not change the number of lines"
-//             );
-
-//             edits.push((start_point..end_point, lines.join("\n")));
-//             let start_anchor = buffer.anchor_after(start_point);
-//             let end_anchor = buffer.anchor_before(end_point);
-
-//             // Make selection and push
-//             new_selections.push(Selection {
-//                 id: selection.id,
-//                 start: start_anchor.to_offset(&buffer),
-//                 end: end_anchor.to_offset(&buffer),
-//                 goal: SelectionGoal::None,
-//                 reversed: selection.reversed,
-//             });
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |buffer, cx| {
-//                 buffer.edit(edits, None, cx);
-//             });
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(new_selections);
-//             });
-
-//             this.request_autoscroll(Autoscroll::fit(), cx);
-//         });
-//     }
-
-//     pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
-//         self.manipulate_text(cx, |text| text.to_uppercase())
-//     }
-
-//     pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
-//         self.manipulate_text(cx, |text| text.to_lowercase())
-//     }
-
-//     pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
-//         self.manipulate_text(cx, |text| {
-//             // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
-//             // https://github.com/rutrum/convert-case/issues/16
-//             text.split("\n")
-//                 .map(|line| line.to_case(Case::Title))
-//                 .join("\n")
-//         })
-//     }
-
-//     pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
-//         self.manipulate_text(cx, |text| text.to_case(Case::Snake))
-//     }
-
-//     pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
-//         self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
-//     }
-
-//     pub fn convert_to_upper_camel_case(
-//         &mut self,
-//         _: &ConvertToUpperCamelCase,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.manipulate_text(cx, |text| {
-//             // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
-//             // https://github.com/rutrum/convert-case/issues/16
-//             text.split("\n")
-//                 .map(|line| line.to_case(Case::UpperCamel))
-//                 .join("\n")
-//         })
-//     }
-
-//     pub fn convert_to_lower_camel_case(
-//         &mut self,
-//         _: &ConvertToLowerCamelCase,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.manipulate_text(cx, |text| text.to_case(Case::Camel))
-//     }
-
-//     fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
-//     where
-//         Fn: FnMut(&str) -> String,
-//     {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-
-//         let mut new_selections = Vec::new();
-//         let mut edits = Vec::new();
-//         let mut selection_adjustment = 0i32;
-
-//         for selection in self.selections.all::<usize>(cx) {
-//             let selection_is_empty = selection.is_empty();
-
-//             let (start, end) = if selection_is_empty {
-//                 let word_range = movement::surrounding_word(
-//                     &display_map,
-//                     selection.start.to_display_point(&display_map),
-//                 );
-//                 let start = word_range.start.to_offset(&display_map, Bias::Left);
-//                 let end = word_range.end.to_offset(&display_map, Bias::Left);
-//                 (start, end)
-//             } else {
-//                 (selection.start, selection.end)
-//             };
-
-//             let text = buffer.text_for_range(start..end).collect::<String>();
-//             let old_length = text.len() as i32;
-//             let text = callback(&text);
-
-//             new_selections.push(Selection {
-//                 start: (start as i32 - selection_adjustment) as usize,
-//                 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
-//                 goal: SelectionGoal::None,
-//                 ..selection
-//             });
-
-//             selection_adjustment += old_length - text.len() as i32;
-
-//             edits.push((start..end, text));
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |buffer, cx| {
-//                 buffer.edit(edits, None, cx);
-//             });
-
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(new_selections);
-//             });
-
-//             this.request_autoscroll(Autoscroll::fit(), cx);
-//         });
-//     }
-
-//     pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = &display_map.buffer_snapshot;
-//         let selections = self.selections.all::<Point>(cx);
-
-//         let mut edits = Vec::new();
-//         let mut selections_iter = selections.iter().peekable();
-//         while let Some(selection) = selections_iter.next() {
-//             // Avoid duplicating the same lines twice.
-//             let mut rows = selection.spanned_rows(false, &display_map);
-
-//             while let Some(next_selection) = selections_iter.peek() {
-//                 let next_rows = next_selection.spanned_rows(false, &display_map);
-//                 if next_rows.start < rows.end {
-//                     rows.end = next_rows.end;
-//                     selections_iter.next().unwrap();
-//                 } else {
-//                     break;
-//                 }
-//             }
-
-//             // Copy the text from the selected row region and splice it at the start of the region.
-//             let start = Point::new(rows.start, 0);
-//             let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
-//             let text = buffer
-//                 .text_for_range(start..end)
-//                 .chain(Some("\n"))
-//                 .collect::<String>();
-//             edits.push((start..start, text));
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.buffer.update(cx, |buffer, cx| {
-//                 buffer.edit(edits, None, cx);
-//             });
-
-//             this.request_autoscroll(Autoscroll::fit(), cx);
-//         });
-//     }
-
-//     pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-
-//         let mut edits = Vec::new();
-//         let mut unfold_ranges = Vec::new();
-//         let mut refold_ranges = Vec::new();
-
-//         let selections = self.selections.all::<Point>(cx);
-//         let mut selections = selections.iter().peekable();
-//         let mut contiguous_row_selections = Vec::new();
-//         let mut new_selections = Vec::new();
-
-//         while let Some(selection) = selections.next() {
-//             // Find all the selections that span a contiguous row range
-//             let (start_row, end_row) = consume_contiguous_rows(
-//                 &mut contiguous_row_selections,
-//                 selection,
-//                 &display_map,
-//                 &mut selections,
-//             );
-
-//             // Move the text spanned by the row range to be before the line preceding the row range
-//             if start_row > 0 {
-//                 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
-//                     ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
-//                 let insertion_point = display_map
-//                     .prev_line_boundary(Point::new(start_row - 1, 0))
-//                     .0;
-
-//                 // Don't move lines across excerpts
-//                 if buffer
-//                     .excerpt_boundaries_in_range((
-//                         Bound::Excluded(insertion_point),
-//                         Bound::Included(range_to_move.end),
-//                     ))
-//                     .next()
-//                     .is_none()
-//                 {
-//                     let text = buffer
-//                         .text_for_range(range_to_move.clone())
-//                         .flat_map(|s| s.chars())
-//                         .skip(1)
-//                         .chain(['\n'])
-//                         .collect::<String>();
-
-//                     edits.push((
-//                         buffer.anchor_after(range_to_move.start)
-//                             ..buffer.anchor_before(range_to_move.end),
-//                         String::new(),
-//                     ));
-//                     let insertion_anchor = buffer.anchor_after(insertion_point);
-//                     edits.push((insertion_anchor..insertion_anchor, text));
-
-//                     let row_delta = range_to_move.start.row - insertion_point.row + 1;
-
-//                     // Move selections up
-//                     new_selections.extend(contiguous_row_selections.drain(..).map(
-//                         |mut selection| {
-//                             selection.start.row -= row_delta;
-//                             selection.end.row -= row_delta;
-//                             selection
-//                         },
-//                     ));
-
-//                     // Move folds up
-//                     unfold_ranges.push(range_to_move.clone());
-//                     for fold in display_map.folds_in_range(
-//                         buffer.anchor_before(range_to_move.start)
-//                             ..buffer.anchor_after(range_to_move.end),
-//                     ) {
-//                         let mut start = fold.start.to_point(&buffer);
-//                         let mut end = fold.end.to_point(&buffer);
-//                         start.row -= row_delta;
-//                         end.row -= row_delta;
-//                         refold_ranges.push(start..end);
-//                     }
-//                 }
-//             }
-
-//             // If we didn't move line(s), preserve the existing selections
-//             new_selections.append(&mut contiguous_row_selections);
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.unfold_ranges(unfold_ranges, true, true, cx);
-//             this.buffer.update(cx, |buffer, cx| {
-//                 for (range, text) in edits {
-//                     buffer.edit([(range, text)], None, cx);
-//                 }
-//             });
-//             this.fold_ranges(refold_ranges, true, cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(new_selections);
-//             })
-//         });
-//     }
-
-//     pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-
-//         let mut edits = Vec::new();
-//         let mut unfold_ranges = Vec::new();
-//         let mut refold_ranges = Vec::new();
-
-//         let selections = self.selections.all::<Point>(cx);
-//         let mut selections = selections.iter().peekable();
-//         let mut contiguous_row_selections = Vec::new();
-//         let mut new_selections = Vec::new();
-
-//         while let Some(selection) = selections.next() {
-//             // Find all the selections that span a contiguous row range
-//             let (start_row, end_row) = consume_contiguous_rows(
-//                 &mut contiguous_row_selections,
-//                 selection,
-//                 &display_map,
-//                 &mut selections,
-//             );
-
-//             // Move the text spanned by the row range to be after the last line of the row range
-//             if end_row <= buffer.max_point().row {
-//                 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
-//                 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
-
-//                 // Don't move lines across excerpt boundaries
-//                 if buffer
-//                     .excerpt_boundaries_in_range((
-//                         Bound::Excluded(range_to_move.start),
-//                         Bound::Included(insertion_point),
-//                     ))
-//                     .next()
-//                     .is_none()
-//                 {
-//                     let mut text = String::from("\n");
-//                     text.extend(buffer.text_for_range(range_to_move.clone()));
-//                     text.pop(); // Drop trailing newline
-//                     edits.push((
-//                         buffer.anchor_after(range_to_move.start)
-//                             ..buffer.anchor_before(range_to_move.end),
-//                         String::new(),
-//                     ));
-//                     let insertion_anchor = buffer.anchor_after(insertion_point);
-//                     edits.push((insertion_anchor..insertion_anchor, text));
-
-//                     let row_delta = insertion_point.row - range_to_move.end.row + 1;
-
-//                     // Move selections down
-//                     new_selections.extend(contiguous_row_selections.drain(..).map(
-//                         |mut selection| {
-//                             selection.start.row += row_delta;
-//                             selection.end.row += row_delta;
-//                             selection
-//                         },
-//                     ));
-
-//                     // Move folds down
-//                     unfold_ranges.push(range_to_move.clone());
-//                     for fold in display_map.folds_in_range(
-//                         buffer.anchor_before(range_to_move.start)
-//                             ..buffer.anchor_after(range_to_move.end),
-//                     ) {
-//                         let mut start = fold.start.to_point(&buffer);
-//                         let mut end = fold.end.to_point(&buffer);
-//                         start.row += row_delta;
-//                         end.row += row_delta;
-//                         refold_ranges.push(start..end);
-//                     }
-//                 }
-//             }
-
-//             // If we didn't move line(s), preserve the existing selections
-//             new_selections.append(&mut contiguous_row_selections);
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.unfold_ranges(unfold_ranges, true, true, cx);
-//             this.buffer.update(cx, |buffer, cx| {
-//                 for (range, text) in edits {
-//                     buffer.edit([(range, text)], None, cx);
-//                 }
-//             });
-//             this.fold_ranges(refold_ranges, true, cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
-//         });
-//     }
-
-//     pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.transact(cx, |this, cx| {
-//             let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let mut edits: Vec<(Range<usize>, String)> = Default::default();
-//                 let line_mode = s.line_mode;
-//                 s.move_with(|display_map, selection| {
-//                     if !selection.is_empty() || line_mode {
-//                         return;
-//                     }
-
-//                     let mut head = selection.head();
-//                     let mut transpose_offset = head.to_offset(display_map, Bias::Right);
-//                     if head.column() == display_map.line_len(head.row()) {
-//                         transpose_offset = display_map
-//                             .buffer_snapshot
-//                             .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
-//                     }
-
-//                     if transpose_offset == 0 {
-//                         return;
-//                     }
-
-//                     *head.column_mut() += 1;
-//                     head = display_map.clip_point(head, Bias::Right);
-//                     let goal = SelectionGoal::HorizontalPosition(
-//                         display_map.x_for_point(head, &text_layout_details),
-//                     );
-//                     selection.collapse_to(head, goal);
-
-//                     let transpose_start = display_map
-//                         .buffer_snapshot
-//                         .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
-//                     if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
-//                         let transpose_end = display_map
-//                             .buffer_snapshot
-//                             .clip_offset(transpose_offset + 1, Bias::Right);
-//                         if let Some(ch) =
-//                             display_map.buffer_snapshot.chars_at(transpose_start).next()
-//                         {
-//                             edits.push((transpose_start..transpose_offset, String::new()));
-//                             edits.push((transpose_end..transpose_end, ch.to_string()));
-//                         }
-//                     }
-//                 });
-//                 edits
-//             });
-//             this.buffer
-//                 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
-//             let selections = this.selections.all::<usize>(cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(selections);
-//             });
-//         });
-//     }
-
-//     pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
-//         let mut text = String::new();
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-//         let mut selections = self.selections.all::<Point>(cx);
-//         let mut clipboard_selections = Vec::with_capacity(selections.len());
-//         {
-//             let max_point = buffer.max_point();
-//             let mut is_first = true;
-//             for selection in &mut selections {
-//                 let is_entire_line = selection.is_empty() || self.selections.line_mode;
-//                 if is_entire_line {
-//                     selection.start = Point::new(selection.start.row, 0);
-//                     selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
-//                     selection.goal = SelectionGoal::None;
-//                 }
-//                 if is_first {
-//                     is_first = false;
-//                 } else {
-//                     text += "\n";
-//                 }
-//                 let mut len = 0;
-//                 for chunk in buffer.text_for_range(selection.start..selection.end) {
-//                     text.push_str(chunk);
-//                     len += chunk.len();
-//                 }
-//                 clipboard_selections.push(ClipboardSelection {
-//                     len,
-//                     is_entire_line,
-//                     first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
-//                 });
-//             }
-//         }
-
-//         self.transact(cx, |this, cx| {
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(selections);
-//             });
-//             this.insert("", cx);
-//             cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
-//         });
-//     }
-
-//     pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
-//         let selections = self.selections.all::<Point>(cx);
-//         let buffer = self.buffer.read(cx).read(cx);
-//         let mut text = String::new();
-
-//         let mut clipboard_selections = Vec::with_capacity(selections.len());
-//         {
-//             let max_point = buffer.max_point();
-//             let mut is_first = true;
-//             for selection in selections.iter() {
-//                 let mut start = selection.start;
-//                 let mut end = selection.end;
-//                 let is_entire_line = selection.is_empty() || self.selections.line_mode;
-//                 if is_entire_line {
-//                     start = Point::new(start.row, 0);
-//                     end = cmp::min(max_point, Point::new(end.row + 1, 0));
-//                 }
-//                 if is_first {
-//                     is_first = false;
-//                 } else {
-//                     text += "\n";
-//                 }
-//                 let mut len = 0;
-//                 for chunk in buffer.text_for_range(start..end) {
-//                     text.push_str(chunk);
-//                     len += chunk.len();
-//                 }
-//                 clipboard_selections.push(ClipboardSelection {
-//                     len,
-//                     is_entire_line,
-//                     first_line_indent: buffer.indent_size_for_line(start.row).len,
-//                 });
-//             }
-//         }
-
-//         cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
-//     }
-
-//     pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             if let Some(item) = cx.read_from_clipboard() {
-//                 let clipboard_text = Cow::Borrowed(item.text());
-//                 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
-//                     let old_selections = this.selections.all::<usize>(cx);
-//                     let all_selections_were_entire_line =
-//                         clipboard_selections.iter().all(|s| s.is_entire_line);
-//                     let first_selection_indent_column =
-//                         clipboard_selections.first().map(|s| s.first_line_indent);
-//                     if clipboard_selections.len() != old_selections.len() {
-//                         clipboard_selections.drain(..);
-//                     }
-
-//                     this.buffer.update(cx, |buffer, cx| {
-//                         let snapshot = buffer.read(cx);
-//                         let mut start_offset = 0;
-//                         let mut edits = Vec::new();
-//                         let mut original_indent_columns = Vec::new();
-//                         let line_mode = this.selections.line_mode;
-//                         for (ix, selection) in old_selections.iter().enumerate() {
-//                             let to_insert;
-//                             let entire_line;
-//                             let original_indent_column;
-//                             if let Some(clipboard_selection) = clipboard_selections.get(ix) {
-//                                 let end_offset = start_offset + clipboard_selection.len;
-//                                 to_insert = &clipboard_text[start_offset..end_offset];
-//                                 entire_line = clipboard_selection.is_entire_line;
-//                                 start_offset = end_offset + 1;
-//                                 original_indent_column =
-//                                     Some(clipboard_selection.first_line_indent);
-//                             } else {
-//                                 to_insert = clipboard_text.as_str();
-//                                 entire_line = all_selections_were_entire_line;
-//                                 original_indent_column = first_selection_indent_column
-//                             }
-
-//                             // If the corresponding selection was empty when this slice of the
-//                             // clipboard text was written, then the entire line containing the
-//                             // selection was copied. If this selection is also currently empty,
-//                             // then paste the line before the current line of the buffer.
-//                             let range = if selection.is_empty() && !line_mode && entire_line {
-//                                 let column = selection.start.to_point(&snapshot).column as usize;
-//                                 let line_start = selection.start - column;
-//                                 line_start..line_start
-//                             } else {
-//                                 selection.range()
-//                             };
-
-//                             edits.push((range, to_insert));
-//                             original_indent_columns.extend(original_indent_column);
-//                         }
-//                         drop(snapshot);
-
-//                         buffer.edit(
-//                             edits,
-//                             Some(AutoindentMode::Block {
-//                                 original_indent_columns,
-//                             }),
-//                             cx,
-//                         );
-//                     });
-
-//                     let selections = this.selections.all::<usize>(cx);
-//                     this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-//                 } else {
-//                     this.insert(&clipboard_text, cx);
-//                 }
-//             }
-//         });
-//     }
-
-//     pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
-//         if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
-//             if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
-//                 self.change_selections(None, cx, |s| {
-//                     s.select_anchors(selections.to_vec());
-//                 });
-//             }
-//             self.request_autoscroll(Autoscroll::fit(), cx);
-//             self.unmark_text(cx);
-//             self.refresh_copilot_suggestions(true, cx);
-//             cx.emit(Event::Edited);
-//         }
-//     }
-
-//     pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
-//         if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
-//             if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
-//             {
-//                 self.change_selections(None, cx, |s| {
-//                     s.select_anchors(selections.to_vec());
-//                 });
-//             }
-//             self.request_autoscroll(Autoscroll::fit(), cx);
-//             self.unmark_text(cx);
-//             self.refresh_copilot_suggestions(true, cx);
-//             cx.emit(Event::Edited);
-//         }
-//     }
-
-//     pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
-//         self.buffer
-//             .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
-//     }
-
-//     pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 let cursor = if selection.is_empty() && !line_mode {
-//                     movement::left(map, selection.start)
-//                 } else {
-//                     selection.start
-//                 };
-//                 selection.collapse_to(cursor, SelectionGoal::None);
-//             });
-//         })
-//     }
-
-//     pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
-//         })
-//     }
-
-//     pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 let cursor = if selection.is_empty() && !line_mode {
-//                     movement::right(map, selection.end)
-//                 } else {
-//                     selection.end
-//                 };
-//                 selection.collapse_to(cursor, SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
-//         })
-//     }
-
-//     pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
-//         if self.take_rename(true, cx).is_some() {
-//             return;
-//         }
-
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let text_layout_details = &self.text_layout_details(cx);
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 if !selection.is_empty() && !line_mode {
-//                     selection.goal = SelectionGoal::None;
-//                 }
-//                 let (cursor, goal) = movement::up(
-//                     map,
-//                     selection.start,
-//                     selection.goal,
-//                     false,
-//                     &text_layout_details,
-//                 );
-//                 selection.collapse_to(cursor, goal);
-//             });
-//         })
-//     }
-
-//     pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
-//         if self.take_rename(true, cx).is_some() {
-//             return;
-//         }
-
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let row_count = if let Some(row_count) = self.visible_line_count() {
-//             row_count as u32 - 1
-//         } else {
-//             return;
-//         };
-
-//         let autoscroll = if action.center_cursor {
-//             Autoscroll::center()
-//         } else {
-//             Autoscroll::fit()
-//         };
-
-//         let text_layout_details = &self.text_layout_details(cx);
-
-//         self.change_selections(Some(autoscroll), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 if !selection.is_empty() && !line_mode {
-//                     selection.goal = SelectionGoal::None;
-//                 }
-//                 let (cursor, goal) = movement::up_by_rows(
-//                     map,
-//                     selection.end,
-//                     row_count,
-//                     selection.goal,
-//                     false,
-//                     &text_layout_details,
-//                 );
-//                 selection.collapse_to(cursor, goal);
-//             });
-//         });
-//     }
-
-//     pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, goal| {
-//                 movement::up(map, head, goal, false, &text_layout_details)
-//             })
-//         })
-//     }
-
-//     pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
-//         self.take_rename(true, cx);
-
-//         if self.mode == EditorMode::SingleLine {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 if !selection.is_empty() && !line_mode {
-//                     selection.goal = SelectionGoal::None;
-//                 }
-//                 let (cursor, goal) = movement::down(
-//                     map,
-//                     selection.end,
-//                     selection.goal,
-//                     false,
-//                     &text_layout_details,
-//                 );
-//                 selection.collapse_to(cursor, goal);
-//             });
-//         });
-//     }
-
-//     pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
-//         if self.take_rename(true, cx).is_some() {
-//             return;
-//         }
-
-//         if self
-//             .context_menu
-//             .write()
-//             .as_mut()
-//             .map(|menu| menu.select_last(self.project.as_ref(), cx))
-//             .unwrap_or(false)
-//         {
-//             return;
-//         }
-
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let row_count = if let Some(row_count) = self.visible_line_count() {
-//             row_count as u32 - 1
-//         } else {
-//             return;
-//         };
-
-//         let autoscroll = if action.center_cursor {
-//             Autoscroll::center()
-//         } else {
-//             Autoscroll::fit()
-//         };
-
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.change_selections(Some(autoscroll), cx, |s| {
-//             let line_mode = s.line_mode;
-//             s.move_with(|map, selection| {
-//                 if !selection.is_empty() && !line_mode {
-//                     selection.goal = SelectionGoal::None;
-//                 }
-//                 let (cursor, goal) = movement::down_by_rows(
-//                     map,
-//                     selection.end,
-//                     row_count,
-//                     selection.goal,
-//                     false,
-//                     &text_layout_details,
-//                 );
-//                 selection.collapse_to(cursor, goal);
-//             });
-//         });
-//     }
-
-//     pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, goal| {
-//                 movement::down(map, head, goal, false, &text_layout_details)
-//             })
-//         });
-//     }
-
-//     pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
-//         if let Some(context_menu) = self.context_menu.write().as_mut() {
-//             context_menu.select_first(self.project.as_ref(), cx);
-//         }
-//     }
-
-//     pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
-//         if let Some(context_menu) = self.context_menu.write().as_mut() {
-//             context_menu.select_prev(self.project.as_ref(), cx);
-//         }
-//     }
-
-//     pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
-//         if let Some(context_menu) = self.context_menu.write().as_mut() {
-//             context_menu.select_next(self.project.as_ref(), cx);
-//         }
-//     }
-
-//     pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
-//         if let Some(context_menu) = self.context_menu.write().as_mut() {
-//             context_menu.select_last(self.project.as_ref(), cx);
-//         }
-//     }
-
-//     pub fn move_to_previous_word_start(
-//         &mut self,
-//         _: &MoveToPreviousWordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (
-//                     movement::previous_word_start(map, head),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn move_to_previous_subword_start(
-//         &mut self,
-//         _: &MoveToPreviousSubwordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (
-//                     movement::previous_subword_start(map, head),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn select_to_previous_word_start(
-//         &mut self,
-//         _: &SelectToPreviousWordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::previous_word_start(map, head),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn select_to_previous_subword_start(
-//         &mut self,
-//         _: &SelectToPreviousSubwordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::previous_subword_start(map, head),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn delete_to_previous_word_start(
-//         &mut self,
-//         _: &DeleteToPreviousWordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.transact(cx, |this, cx| {
-//             this.select_autoclose_pair(cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let line_mode = s.line_mode;
-//                 s.move_with(|map, selection| {
-//                     if selection.is_empty() && !line_mode {
-//                         let cursor = movement::previous_word_start(map, selection.head());
-//                         selection.set_head(cursor, SelectionGoal::None);
-//                     }
-//                 });
-//             });
-//             this.insert("", cx);
-//         });
-//     }
-
-//     pub fn delete_to_previous_subword_start(
-//         &mut self,
-//         _: &DeleteToPreviousSubwordStart,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.transact(cx, |this, cx| {
-//             this.select_autoclose_pair(cx);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let line_mode = s.line_mode;
-//                 s.move_with(|map, selection| {
-//                     if selection.is_empty() && !line_mode {
-//                         let cursor = movement::previous_subword_start(map, selection.head());
-//                         selection.set_head(cursor, SelectionGoal::None);
-//                     }
-//                 });
-//             });
-//             this.insert("", cx);
-//         });
-//     }
-
-//     pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (movement::next_word_end(map, head), SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn move_to_next_subword_end(
-//         &mut self,
-//         _: &MoveToNextSubwordEnd,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (movement::next_subword_end(map, head), SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (movement::next_word_end(map, head), SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn select_to_next_subword_end(
-//         &mut self,
-//         _: &SelectToNextSubwordEnd,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (movement::next_subword_end(map, head), SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let line_mode = s.line_mode;
-//                 s.move_with(|map, selection| {
-//                     if selection.is_empty() && !line_mode {
-//                         let cursor = movement::next_word_end(map, selection.head());
-//                         selection.set_head(cursor, SelectionGoal::None);
-//                     }
-//                 });
-//             });
-//             this.insert("", cx);
-//         });
-//     }
-
-//     pub fn delete_to_next_subword_end(
-//         &mut self,
-//         _: &DeleteToNextSubwordEnd,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.transact(cx, |this, cx| {
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.move_with(|map, selection| {
-//                     if selection.is_empty() {
-//                         let cursor = movement::next_subword_end(map, selection.head());
-//                         selection.set_head(cursor, SelectionGoal::None);
-//                     }
-//                 });
-//             });
-//             this.insert("", cx);
-//         });
-//     }
-
-//     pub fn move_to_beginning_of_line(
-//         &mut self,
-//         _: &MoveToBeginningOfLine,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (
-//                     movement::indented_line_beginning(map, head, true),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn select_to_beginning_of_line(
-//         &mut self,
-//         action: &SelectToBeginningOfLine,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         });
-//     }
-
-//     pub fn delete_to_beginning_of_line(
-//         &mut self,
-//         _: &DeleteToBeginningOfLine,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.transact(cx, |this, cx| {
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.move_with(|_, selection| {
-//                     selection.reversed = true;
-//                 });
-//             });
-
-//             this.select_to_beginning_of_line(
-//                 &SelectToBeginningOfLine {
-//                     stop_at_soft_wraps: false,
-//                 },
-//                 cx,
-//             );
-//             this.backspace(&Backspace, cx);
-//         });
-//     }
-
-//     pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_cursors_with(|map, head, _| {
-//                 (movement::line_end(map, head, true), SelectionGoal::None)
-//             });
-//         })
-//     }
-
-//     pub fn select_to_end_of_line(
-//         &mut self,
-//         action: &SelectToEndOfLine,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::line_end(map, head, action.stop_at_soft_wraps),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.select_to_end_of_line(
-//                 &SelectToEndOfLine {
-//                     stop_at_soft_wraps: false,
-//                 },
-//                 cx,
-//             );
-//             this.delete(&Delete, cx);
-//         });
-//     }
-
-//     pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.select_to_end_of_line(
-//                 &SelectToEndOfLine {
-//                     stop_at_soft_wraps: false,
-//                 },
-//                 cx,
-//             );
-//             this.cut(&Cut, cx);
-//         });
-//     }
-
-//     pub fn move_to_start_of_paragraph(
-//         &mut self,
-//         _: &MoveToStartOfParagraph,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_with(|map, selection| {
-//                 selection.collapse_to(
-//                     movement::start_of_paragraph(map, selection.head(), 1),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn move_to_end_of_paragraph(
-//         &mut self,
-//         _: &MoveToEndOfParagraph,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_with(|map, selection| {
-//                 selection.collapse_to(
-//                     movement::end_of_paragraph(map, selection.head(), 1),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn select_to_start_of_paragraph(
-//         &mut self,
-//         _: &SelectToStartOfParagraph,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::start_of_paragraph(map, head, 1),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn select_to_end_of_paragraph(
-//         &mut self,
-//         _: &SelectToEndOfParagraph,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_heads_with(|map, head, _| {
-//                 (
-//                     movement::end_of_paragraph(map, head, 1),
-//                     SelectionGoal::None,
-//                 )
-//             });
-//         })
-//     }
-
-//     pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select_ranges(vec![0..0]);
-//         });
-//     }
-
-//     pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
-//         let mut selection = self.selections.last::<Point>(cx);
-//         selection.set_head(Point::zero(), SelectionGoal::None);
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select(vec![selection]);
-//         });
-//     }
-
-//     pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
-//         if matches!(self.mode, EditorMode::SingleLine) {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let cursor = self.buffer.read(cx).read(cx).len();
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select_ranges(vec![cursor..cursor])
-//         });
-//     }
-
-//     pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
-//         self.nav_history = nav_history;
-//     }
-
-//     pub fn nav_history(&self) -> Option<&ItemNavHistory> {
-//         self.nav_history.as_ref()
-//     }
-
-//     fn push_to_nav_history(
-//         &mut self,
-//         cursor_anchor: Anchor,
-//         new_position: Option<Point>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if let Some(nav_history) = self.nav_history.as_mut() {
-//             let buffer = self.buffer.read(cx).read(cx);
-//             let cursor_position = cursor_anchor.to_point(&buffer);
-//             let scroll_state = self.scroll_manager.anchor();
-//             let scroll_top_row = scroll_state.top_row(&buffer);
-//             drop(buffer);
-
-//             if let Some(new_position) = new_position {
-//                 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
-//                 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
-//                     return;
-//                 }
-//             }
-
-//             nav_history.push(
-//                 Some(NavigationData {
-//                     cursor_anchor,
-//                     cursor_position,
-//                     scroll_anchor: scroll_state,
-//                     scroll_top_row,
-//                 }),
-//                 cx,
-//             );
-//         }
-//     }
-
-//     pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-//         let mut selection = self.selections.first::<usize>(cx);
-//         selection.set_head(buffer.len(), SelectionGoal::None);
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select(vec![selection]);
-//         });
-//     }
-
-//     pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
-//         let end = self.buffer.read(cx).read(cx).len();
-//         self.change_selections(None, cx, |s| {
-//             s.select_ranges(vec![0..end]);
-//         });
-//     }
-
-//     pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let mut selections = self.selections.all::<Point>(cx);
-//         let max_point = display_map.buffer_snapshot.max_point();
-//         for selection in &mut selections {
-//             let rows = selection.spanned_rows(true, &display_map);
-//             selection.start = Point::new(rows.start, 0);
-//             selection.end = cmp::min(max_point, Point::new(rows.end, 0));
-//             selection.reversed = false;
-//         }
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select(selections);
-//         });
-//     }
-
-//     pub fn split_selection_into_lines(
-//         &mut self,
-//         _: &SplitSelectionIntoLines,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let mut to_unfold = Vec::new();
-//         let mut new_selection_ranges = Vec::new();
-//         {
-//             let selections = self.selections.all::<Point>(cx);
-//             let buffer = self.buffer.read(cx).read(cx);
-//             for selection in selections {
-//                 for row in selection.start.row..selection.end.row {
-//                     let cursor = Point::new(row, buffer.line_len(row));
-//                     new_selection_ranges.push(cursor..cursor);
-//                 }
-//                 new_selection_ranges.push(selection.end..selection.end);
-//                 to_unfold.push(selection.start..selection.end);
-//             }
-//         }
-//         self.unfold_ranges(to_unfold, true, true, cx);
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select_ranges(new_selection_ranges);
-//         });
-//     }
-
-//     pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
-//         self.add_selection(true, cx);
-//     }
-
-//     pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
-//         self.add_selection(false, cx);
-//     }
-
-//     fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let mut selections = self.selections.all::<Point>(cx);
-//         let text_layout_details = self.text_layout_details(cx);
-//         let mut state = self.add_selections_state.take().unwrap_or_else(|| {
-//             let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
-//             let range = oldest_selection.display_range(&display_map).sorted();
-
-//             let start_x = display_map.x_for_point(range.start, &text_layout_details);
-//             let end_x = display_map.x_for_point(range.end, &text_layout_details);
-//             let positions = start_x.min(end_x)..start_x.max(end_x);
-
-//             selections.clear();
-//             let mut stack = Vec::new();
-//             for row in range.start.row()..=range.end.row() {
-//                 if let Some(selection) = self.selections.build_columnar_selection(
-//                     &display_map,
-//                     row,
-//                     &positions,
-//                     oldest_selection.reversed,
-//                     &text_layout_details,
-//                 ) {
-//                     stack.push(selection.id);
-//                     selections.push(selection);
-//                 }
-//             }
-
-//             if above {
-//                 stack.reverse();
-//             }
-
-//             AddSelectionsState { above, stack }
-//         });
-
-//         let last_added_selection = *state.stack.last().unwrap();
-//         let mut new_selections = Vec::new();
-//         if above == state.above {
-//             let end_row = if above {
-//                 0
-//             } else {
-//                 display_map.max_point().row()
-//             };
-
-//             'outer: for selection in selections {
-//                 if selection.id == last_added_selection {
-//                     let range = selection.display_range(&display_map).sorted();
-//                     debug_assert_eq!(range.start.row(), range.end.row());
-//                     let mut row = range.start.row();
-//                     let positions = if let SelectionGoal::HorizontalRange { start, end } =
-//                         selection.goal
-//                     {
-//                         start..end
-//                     } else {
-//                         let start_x = display_map.x_for_point(range.start, &text_layout_details);
-//                         let end_x = display_map.x_for_point(range.end, &text_layout_details);
-
-//                         start_x.min(end_x)..start_x.max(end_x)
-//                     };
-
-//                     while row != end_row {
-//                         if above {
-//                             row -= 1;
-//                         } else {
-//                             row += 1;
-//                         }
-
-//                         if let Some(new_selection) = self.selections.build_columnar_selection(
-//                             &display_map,
-//                             row,
-//                             &positions,
-//                             selection.reversed,
-//                             &text_layout_details,
-//                         ) {
-//                             state.stack.push(new_selection.id);
-//                             if above {
-//                                 new_selections.push(new_selection);
-//                                 new_selections.push(selection);
-//                             } else {
-//                                 new_selections.push(selection);
-//                                 new_selections.push(new_selection);
-//                             }
-
-//                             continue 'outer;
-//                         }
-//                     }
-//                 }
-
-//                 new_selections.push(selection);
-//             }
-//         } else {
-//             new_selections = selections;
-//             new_selections.retain(|s| s.id != last_added_selection);
-//             state.stack.pop();
-//         }
-
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.select(new_selections);
-//         });
-//         if state.stack.len() > 1 {
-//             self.add_selections_state = Some(state);
-//         }
-//     }
-
-//     pub fn select_next_match_internal(
-//         &mut self,
-//         display_map: &DisplaySnapshot,
-//         replace_newest: bool,
-//         autoscroll: Option<Autoscroll>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Result<()> {
-//         fn select_next_match_ranges(
-//             this: &mut Editor,
-//             range: Range<usize>,
-//             replace_newest: bool,
-//             auto_scroll: Option<Autoscroll>,
-//             cx: &mut ViewContext<Editor>,
-//         ) {
-//             this.unfold_ranges([range.clone()], false, true, cx);
-//             this.change_selections(auto_scroll, cx, |s| {
-//                 if replace_newest {
-//                     s.delete(s.newest_anchor().id);
-//                 }
-//                 s.insert_range(range.clone());
-//             });
-//         }
-
-//         let buffer = &display_map.buffer_snapshot;
-//         let mut selections = self.selections.all::<usize>(cx);
-//         if let Some(mut select_next_state) = self.select_next_state.take() {
-//             let query = &select_next_state.query;
-//             if !select_next_state.done {
-//                 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
-//                 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
-//                 let mut next_selected_range = None;
-
-//                 let bytes_after_last_selection =
-//                     buffer.bytes_in_range(last_selection.end..buffer.len());
-//                 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
-//                 let query_matches = query
-//                     .stream_find_iter(bytes_after_last_selection)
-//                     .map(|result| (last_selection.end, result))
-//                     .chain(
-//                         query
-//                             .stream_find_iter(bytes_before_first_selection)
-//                             .map(|result| (0, result)),
-//                     );
-
-//                 for (start_offset, query_match) in query_matches {
-//                     let query_match = query_match.unwrap(); // can only fail due to I/O
-//                     let offset_range =
-//                         start_offset + query_match.start()..start_offset + query_match.end();
-//                     let display_range = offset_range.start.to_display_point(&display_map)
-//                         ..offset_range.end.to_display_point(&display_map);
-
-//                     if !select_next_state.wordwise
-//                         || (!movement::is_inside_word(&display_map, display_range.start)
-//                             && !movement::is_inside_word(&display_map, display_range.end))
-//                     {
-//                         if selections
-//                             .iter()
-//                             .find(|selection| selection.range().overlaps(&offset_range))
-//                             .is_none()
-//                         {
-//                             next_selected_range = Some(offset_range);
-//                             break;
-//                         }
-//                     }
-//                 }
-
-//                 if let Some(next_selected_range) = next_selected_range {
-//                     select_next_match_ranges(
-//                         self,
-//                         next_selected_range,
-//                         replace_newest,
-//                         autoscroll,
-//                         cx,
-//                     );
-//                 } else {
-//                     select_next_state.done = true;
-//                 }
-//             }
-
-//             self.select_next_state = Some(select_next_state);
-//         } else if selections.len() == 1 {
-//             let selection = selections.last_mut().unwrap();
-//             if selection.start == selection.end {
-//                 let word_range = movement::surrounding_word(
-//                     &display_map,
-//                     selection.start.to_display_point(&display_map),
-//                 );
-//                 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
-//                 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
-//                 selection.goal = SelectionGoal::None;
-//                 selection.reversed = false;
-
-//                 let query = buffer
-//                     .text_for_range(selection.start..selection.end)
-//                     .collect::<String>();
-
-//                 let is_empty = query.is_empty();
-//                 let select_state = SelectNextState {
-//                     query: AhoCorasick::new(&[query])?,
-//                     wordwise: true,
-//                     done: is_empty,
-//                 };
-//                 select_next_match_ranges(
-//                     self,
-//                     selection.start..selection.end,
-//                     replace_newest,
-//                     autoscroll,
-//                     cx,
-//                 );
-//                 self.select_next_state = Some(select_state);
-//             } else {
-//                 let query = buffer
-//                     .text_for_range(selection.start..selection.end)
-//                     .collect::<String>();
-//                 self.select_next_state = Some(SelectNextState {
-//                     query: AhoCorasick::new(&[query])?,
-//                     wordwise: false,
-//                     done: false,
-//                 });
-//                 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
-//             }
-//         }
-//         Ok(())
-//     }
-
-//     pub fn select_all_matches(
-//         &mut self,
-//         action: &SelectAllMatches,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Result<()> {
-//         self.push_to_selection_history();
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-
-//         loop {
-//             self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
-
-//             if self
-//                 .select_next_state
-//                 .as_ref()
-//                 .map(|selection_state| selection_state.done)
-//                 .unwrap_or(true)
-//             {
-//                 break;
-//             }
-//         }
-
-//         Ok(())
-//     }
-
-//     pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
-//         self.push_to_selection_history();
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         self.select_next_match_internal(
-//             &display_map,
-//             action.replace_newest,
-//             Some(Autoscroll::newest()),
-//             cx,
-//         )?;
-//         Ok(())
-//     }
-
-//     pub fn select_previous(
-//         &mut self,
-//         action: &SelectPrevious,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Result<()> {
-//         self.push_to_selection_history();
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = &display_map.buffer_snapshot;
-//         let mut selections = self.selections.all::<usize>(cx);
-//         if let Some(mut select_prev_state) = self.select_prev_state.take() {
-//             let query = &select_prev_state.query;
-//             if !select_prev_state.done {
-//                 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
-//                 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
-//                 let mut next_selected_range = None;
-//                 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
-//                 let bytes_before_last_selection =
-//                     buffer.reversed_bytes_in_range(0..last_selection.start);
-//                 let bytes_after_first_selection =
-//                     buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
-//                 let query_matches = query
-//                     .stream_find_iter(bytes_before_last_selection)
-//                     .map(|result| (last_selection.start, result))
-//                     .chain(
-//                         query
-//                             .stream_find_iter(bytes_after_first_selection)
-//                             .map(|result| (buffer.len(), result)),
-//                     );
-//                 for (end_offset, query_match) in query_matches {
-//                     let query_match = query_match.unwrap(); // can only fail due to I/O
-//                     let offset_range =
-//                         end_offset - query_match.end()..end_offset - query_match.start();
-//                     let display_range = offset_range.start.to_display_point(&display_map)
-//                         ..offset_range.end.to_display_point(&display_map);
-
-//                     if !select_prev_state.wordwise
-//                         || (!movement::is_inside_word(&display_map, display_range.start)
-//                             && !movement::is_inside_word(&display_map, display_range.end))
-//                     {
-//                         next_selected_range = Some(offset_range);
-//                         break;
-//                     }
-//                 }
-
-//                 if let Some(next_selected_range) = next_selected_range {
-//                     self.unfold_ranges([next_selected_range.clone()], false, true, cx);
-//                     self.change_selections(Some(Autoscroll::newest()), cx, |s| {
-//                         if action.replace_newest {
-//                             s.delete(s.newest_anchor().id);
-//                         }
-//                         s.insert_range(next_selected_range);
-//                     });
-//                 } else {
-//                     select_prev_state.done = true;
-//                 }
-//             }
-
-//             self.select_prev_state = Some(select_prev_state);
-//         } else if selections.len() == 1 {
-//             let selection = selections.last_mut().unwrap();
-//             if selection.start == selection.end {
-//                 let word_range = movement::surrounding_word(
-//                     &display_map,
-//                     selection.start.to_display_point(&display_map),
-//                 );
-//                 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
-//                 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
-//                 selection.goal = SelectionGoal::None;
-//                 selection.reversed = false;
-
-//                 let query = buffer
-//                     .text_for_range(selection.start..selection.end)
-//                     .collect::<String>();
-//                 let query = query.chars().rev().collect::<String>();
-//                 let select_state = SelectNextState {
-//                     query: AhoCorasick::new(&[query])?,
-//                     wordwise: true,
-//                     done: false,
-//                 };
-//                 self.unfold_ranges([selection.start..selection.end], false, true, cx);
-//                 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
-//                     s.select(selections);
-//                 });
-//                 self.select_prev_state = Some(select_state);
-//             } else {
-//                 let query = buffer
-//                     .text_for_range(selection.start..selection.end)
-//                     .collect::<String>();
-//                 let query = query.chars().rev().collect::<String>();
-//                 self.select_prev_state = Some(SelectNextState {
-//                     query: AhoCorasick::new(&[query])?,
-//                     wordwise: false,
-//                     done: false,
-//                 });
-//                 self.select_previous(action, cx)?;
-//             }
-//         }
-//         Ok(())
-//     }
-
-//     pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
-//         let text_layout_details = &self.text_layout_details(cx);
-//         self.transact(cx, |this, cx| {
-//             let mut selections = this.selections.all::<Point>(cx);
-//             let mut edits = Vec::new();
-//             let mut selection_edit_ranges = Vec::new();
-//             let mut last_toggled_row = None;
-//             let snapshot = this.buffer.read(cx).read(cx);
-//             let empty_str: Arc<str> = "".into();
-//             let mut suffixes_inserted = Vec::new();
-
-//             fn comment_prefix_range(
-//                 snapshot: &MultiBufferSnapshot,
-//                 row: u32,
-//                 comment_prefix: &str,
-//                 comment_prefix_whitespace: &str,
-//             ) -> Range<Point> {
-//                 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
-
-//                 let mut line_bytes = snapshot
-//                     .bytes_in_range(start..snapshot.max_point())
-//                     .flatten()
-//                     .copied();
-
-//                 // If this line currently begins with the line comment prefix, then record
-//                 // the range containing the prefix.
-//                 if line_bytes
-//                     .by_ref()
-//                     .take(comment_prefix.len())
-//                     .eq(comment_prefix.bytes())
-//                 {
-//                     // Include any whitespace that matches the comment prefix.
-//                     let matching_whitespace_len = line_bytes
-//                         .zip(comment_prefix_whitespace.bytes())
-//                         .take_while(|(a, b)| a == b)
-//                         .count() as u32;
-//                     let end = Point::new(
-//                         start.row,
-//                         start.column + comment_prefix.len() as u32 + matching_whitespace_len,
-//                     );
-//                     start..end
-//                 } else {
-//                     start..start
-//                 }
-//             }
-
-//             fn comment_suffix_range(
-//                 snapshot: &MultiBufferSnapshot,
-//                 row: u32,
-//                 comment_suffix: &str,
-//                 comment_suffix_has_leading_space: bool,
-//             ) -> Range<Point> {
-//                 let end = Point::new(row, snapshot.line_len(row));
-//                 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
-
-//                 let mut line_end_bytes = snapshot
-//                     .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
-//                     .flatten()
-//                     .copied();
-
-//                 let leading_space_len = if suffix_start_column > 0
-//                     && line_end_bytes.next() == Some(b' ')
-//                     && comment_suffix_has_leading_space
-//                 {
-//                     1
-//                 } else {
-//                     0
-//                 };
-
-//                 // If this line currently begins with the line comment prefix, then record
-//                 // the range containing the prefix.
-//                 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
-//                     let start = Point::new(end.row, suffix_start_column - leading_space_len);
-//                     start..end
-//                 } else {
-//                     end..end
-//                 }
-//             }
-
-//             // TODO: Handle selections that cross excerpts
-//             for selection in &mut selections {
-//                 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
-//                 let language = if let Some(language) =
-//                     snapshot.language_scope_at(Point::new(selection.start.row, start_column))
-//                 {
-//                     language
-//                 } else {
-//                     continue;
-//                 };
-
-//                 selection_edit_ranges.clear();
-
-//                 // If multiple selections contain a given row, avoid processing that
-//                 // row more than once.
-//                 let mut start_row = selection.start.row;
-//                 if last_toggled_row == Some(start_row) {
-//                     start_row += 1;
-//                 }
-//                 let end_row =
-//                     if selection.end.row > selection.start.row && selection.end.column == 0 {
-//                         selection.end.row - 1
-//                     } else {
-//                         selection.end.row
-//                     };
-//                 last_toggled_row = Some(end_row);
-
-//                 if start_row > end_row {
-//                     continue;
-//                 }
-
-//                 // If the language has line comments, toggle those.
-//                 if let Some(full_comment_prefix) = language.line_comment_prefix() {
-//                     // Split the comment prefix's trailing whitespace into a separate string,
-//                     // as that portion won't be used for detecting if a line is a comment.
-//                     let comment_prefix = full_comment_prefix.trim_end_matches(' ');
-//                     let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
-//                     let mut all_selection_lines_are_comments = true;
-
-//                     for row in start_row..=end_row {
-//                         if snapshot.is_line_blank(row) && start_row < end_row {
-//                             continue;
-//                         }
-
-//                         let prefix_range = comment_prefix_range(
-//                             snapshot.deref(),
-//                             row,
-//                             comment_prefix,
-//                             comment_prefix_whitespace,
-//                         );
-//                         if prefix_range.is_empty() {
-//                             all_selection_lines_are_comments = false;
-//                         }
-//                         selection_edit_ranges.push(prefix_range);
-//                     }
-
-//                     if all_selection_lines_are_comments {
-//                         edits.extend(
-//                             selection_edit_ranges
-//                                 .iter()
-//                                 .cloned()
-//                                 .map(|range| (range, empty_str.clone())),
-//                         );
-//                     } else {
-//                         let min_column = selection_edit_ranges
-//                             .iter()
-//                             .map(|r| r.start.column)
-//                             .min()
-//                             .unwrap_or(0);
-//                         edits.extend(selection_edit_ranges.iter().map(|range| {
-//                             let position = Point::new(range.start.row, min_column);
-//                             (position..position, full_comment_prefix.clone())
-//                         }));
-//                     }
-//                 } else if let Some((full_comment_prefix, comment_suffix)) =
-//                     language.block_comment_delimiters()
-//                 {
-//                     let comment_prefix = full_comment_prefix.trim_end_matches(' ');
-//                     let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
-//                     let prefix_range = comment_prefix_range(
-//                         snapshot.deref(),
-//                         start_row,
-//                         comment_prefix,
-//                         comment_prefix_whitespace,
-//                     );
-//                     let suffix_range = comment_suffix_range(
-//                         snapshot.deref(),
-//                         end_row,
-//                         comment_suffix.trim_start_matches(' '),
-//                         comment_suffix.starts_with(' '),
-//                     );
-
-//                     if prefix_range.is_empty() || suffix_range.is_empty() {
-//                         edits.push((
-//                             prefix_range.start..prefix_range.start,
-//                             full_comment_prefix.clone(),
-//                         ));
-//                         edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
-//                         suffixes_inserted.push((end_row, comment_suffix.len()));
-//                     } else {
-//                         edits.push((prefix_range, empty_str.clone()));
-//                         edits.push((suffix_range, empty_str.clone()));
-//                     }
-//                 } else {
-//                     continue;
-//                 }
-//             }
-
-//             drop(snapshot);
-//             this.buffer.update(cx, |buffer, cx| {
-//                 buffer.edit(edits, None, cx);
-//             });
-
-//             // Adjust selections so that they end before any comment suffixes that
-//             // were inserted.
-//             let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
-//             let mut selections = this.selections.all::<Point>(cx);
-//             let snapshot = this.buffer.read(cx).read(cx);
-//             for selection in &mut selections {
-//                 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
-//                     match row.cmp(&selection.end.row) {
-//                         Ordering::Less => {
-//                             suffixes_inserted.next();
-//                             continue;
-//                         }
-//                         Ordering::Greater => break,
-//                         Ordering::Equal => {
-//                             if selection.end.column == snapshot.line_len(row) {
-//                                 if selection.is_empty() {
-//                                     selection.start.column -= suffix_len as u32;
-//                                 }
-//                                 selection.end.column -= suffix_len as u32;
-//                             }
-//                             break;
-//                         }
-//                     }
-//                 }
-//             }
-
-//             drop(snapshot);
-//             this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
-
-//             let selections = this.selections.all::<Point>(cx);
-//             let selections_on_single_row = selections.windows(2).all(|selections| {
-//                 selections[0].start.row == selections[1].start.row
-//                     && selections[0].end.row == selections[1].end.row
-//                     && selections[0].start.row == selections[0].end.row
-//             });
-//             let selections_selecting = selections
-//                 .iter()
-//                 .any(|selection| selection.start != selection.end);
-//             let advance_downwards = action.advance_downwards
-//                 && selections_on_single_row
-//                 && !selections_selecting
-//                 && this.mode != EditorMode::SingleLine;
-
-//             if advance_downwards {
-//                 let snapshot = this.buffer.read(cx).snapshot(cx);
-
-//                 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                     s.move_cursors_with(|display_snapshot, display_point, _| {
-//                         let mut point = display_point.to_point(display_snapshot);
-//                         point.row += 1;
-//                         point = snapshot.clip_point(point, Bias::Left);
-//                         let display_point = point.to_display_point(display_snapshot);
-//                         let goal = SelectionGoal::HorizontalPosition(
-//                             display_snapshot.x_for_point(display_point, &text_layout_details),
-//                         );
-//                         (display_point, goal)
-//                     })
-//                 });
-//             }
-//         });
-//     }
-
-//     pub fn select_larger_syntax_node(
-//         &mut self,
-//         _: &SelectLargerSyntaxNode,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-//         let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
-
-//         let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
-//         let mut selected_larger_node = false;
-//         let new_selections = old_selections
-//             .iter()
-//             .map(|selection| {
-//                 let old_range = selection.start..selection.end;
-//                 let mut new_range = old_range.clone();
-//                 while let Some(containing_range) =
-//                     buffer.range_for_syntax_ancestor(new_range.clone())
-//                 {
-//                     new_range = containing_range;
-//                     if !display_map.intersects_fold(new_range.start)
-//                         && !display_map.intersects_fold(new_range.end)
-//                     {
-//                         break;
-//                     }
-//                 }
-
-//                 selected_larger_node |= new_range != old_range;
-//                 Selection {
-//                     id: selection.id,
-//                     start: new_range.start,
-//                     end: new_range.end,
-//                     goal: SelectionGoal::None,
-//                     reversed: selection.reversed,
-//                 }
-//             })
-//             .collect::<Vec<_>>();
-
-//         if selected_larger_node {
-//             stack.push(old_selections);
-//             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(new_selections);
-//             });
-//         }
-//         self.select_larger_syntax_node_stack = stack;
-//     }
-
-//     pub fn select_smaller_syntax_node(
-//         &mut self,
-//         _: &SelectSmallerSyntaxNode,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
-//         if let Some(selections) = stack.pop() {
-//             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 s.select(selections.to_vec());
-//             });
-//         }
-//         self.select_larger_syntax_node_stack = stack;
-//     }
-
-//     pub fn move_to_enclosing_bracket(
-//         &mut self,
-//         _: &MoveToEnclosingBracket,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//             s.move_offsets_with(|snapshot, selection| {
-//                 let Some(enclosing_bracket_ranges) =
-//                     snapshot.enclosing_bracket_ranges(selection.start..selection.end)
-//                 else {
-//                     return;
-//                 };
-
-//                 let mut best_length = usize::MAX;
-//                 let mut best_inside = false;
-//                 let mut best_in_bracket_range = false;
-//                 let mut best_destination = None;
-//                 for (open, close) in enclosing_bracket_ranges {
-//                     let close = close.to_inclusive();
-//                     let length = close.end() - open.start;
-//                     let inside = selection.start >= open.end && selection.end <= *close.start();
-//                     let in_bracket_range = open.to_inclusive().contains(&selection.head())
-//                         || close.contains(&selection.head());
-
-//                     // If best is next to a bracket and current isn't, skip
-//                     if !in_bracket_range && best_in_bracket_range {
-//                         continue;
-//                     }
-
-//                     // Prefer smaller lengths unless best is inside and current isn't
-//                     if length > best_length && (best_inside || !inside) {
-//                         continue;
-//                     }
-
-//                     best_length = length;
-//                     best_inside = inside;
-//                     best_in_bracket_range = in_bracket_range;
-//                     best_destination = Some(
-//                         if close.contains(&selection.start) && close.contains(&selection.end) {
-//                             if inside {
-//                                 open.end
-//                             } else {
-//                                 open.start
-//                             }
-//                         } else {
-//                             if inside {
-//                                 *close.start()
-//                             } else {
-//                                 *close.end()
-//                             }
-//                         },
-//                     );
-//                 }
-
-//                 if let Some(destination) = best_destination {
-//                     selection.collapse_to(destination, SelectionGoal::None);
-//                 }
-//             })
-//         });
-//     }
-
-//     pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
-//         self.end_selection(cx);
-//         self.selection_history.mode = SelectionHistoryMode::Undoing;
-//         if let Some(entry) = self.selection_history.undo_stack.pop_back() {
-//             self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
-//             self.select_next_state = entry.select_next_state;
-//             self.select_prev_state = entry.select_prev_state;
-//             self.add_selections_state = entry.add_selections_state;
-//             self.request_autoscroll(Autoscroll::newest(), cx);
-//         }
-//         self.selection_history.mode = SelectionHistoryMode::Normal;
-//     }
-
-//     pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
-//         self.end_selection(cx);
-//         self.selection_history.mode = SelectionHistoryMode::Redoing;
-//         if let Some(entry) = self.selection_history.redo_stack.pop_back() {
-//             self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
-//             self.select_next_state = entry.select_next_state;
-//             self.select_prev_state = entry.select_prev_state;
-//             self.add_selections_state = entry.add_selections_state;
-//             self.request_autoscroll(Autoscroll::newest(), cx);
-//         }
-//         self.selection_history.mode = SelectionHistoryMode::Normal;
-//     }
-
-//     fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
-//         self.go_to_diagnostic_impl(Direction::Next, cx)
-//     }
-
-//     fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
-//         self.go_to_diagnostic_impl(Direction::Prev, cx)
-//     }
-
-//     pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
-//         let buffer = self.buffer.read(cx).snapshot(cx);
-//         let selection = self.selections.newest::<usize>(cx);
-
-//         // If there is an active Diagnostic Popover. Jump to it's diagnostic instead.
-//         if direction == Direction::Next {
-//             if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
-//                 let (group_id, jump_to) = popover.activation_info();
-//                 if self.activate_diagnostics(group_id, cx) {
-//                     self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                         let mut new_selection = s.newest_anchor().clone();
-//                         new_selection.collapse_to(jump_to, SelectionGoal::None);
-//                         s.select_anchors(vec![new_selection.clone()]);
-//                     });
-//                 }
-//                 return;
-//             }
-//         }
-
-//         let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
-//             active_diagnostics
-//                 .primary_range
-//                 .to_offset(&buffer)
-//                 .to_inclusive()
-//         });
-//         let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
-//             if active_primary_range.contains(&selection.head()) {
-//                 *active_primary_range.end()
-//             } else {
-//                 selection.head()
-//             }
-//         } else {
-//             selection.head()
-//         };
-
-//         loop {
-//             let mut diagnostics = if direction == Direction::Prev {
-//                 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
-//             } else {
-//                 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
-//             };
-//             let group = diagnostics.find_map(|entry| {
-//                 if entry.diagnostic.is_primary
-//                     && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
-//                     && !entry.range.is_empty()
-//                     && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
-//                     && !entry.range.contains(&search_start)
-//                 {
-//                     Some((entry.range, entry.diagnostic.group_id))
-//                 } else {
-//                     None
-//                 }
-//             });
-
-//             if let Some((primary_range, group_id)) = group {
-//                 if self.activate_diagnostics(group_id, cx) {
-//                     self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                         s.select(vec![Selection {
-//                             id: selection.id,
-//                             start: primary_range.start,
-//                             end: primary_range.start,
-//                             reversed: false,
-//                             goal: SelectionGoal::None,
-//                         }]);
-//                     });
-//                 }
-//                 break;
-//             } else {
-//                 // Cycle around to the start of the buffer, potentially moving back to the start of
-//                 // the currently active diagnostic.
-//                 active_primary_range.take();
-//                 if direction == Direction::Prev {
-//                     if search_start == buffer.len() {
-//                         break;
-//                     } else {
-//                         search_start = buffer.len();
-//                     }
-//                 } else if search_start == 0 {
-//                     break;
-//                 } else {
-//                     search_start = 0;
-//                 }
-//             }
-//         }
-//     }
-
-//     fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
-//         let snapshot = self
-//             .display_map
-//             .update(cx, |display_map, cx| display_map.snapshot(cx));
-//         let selection = self.selections.newest::<Point>(cx);
-
-//         if !self.seek_in_direction(
-//             &snapshot,
-//             selection.head(),
-//             false,
-//             snapshot
-//                 .buffer_snapshot
-//                 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
-//             cx,
-//         ) {
-//             let wrapped_point = Point::zero();
-//             self.seek_in_direction(
-//                 &snapshot,
-//                 wrapped_point,
-//                 true,
-//                 snapshot
-//                     .buffer_snapshot
-//                     .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
-//                 cx,
-//             );
-//         }
-//     }
-
-//     fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
-//         let snapshot = self
-//             .display_map
-//             .update(cx, |display_map, cx| display_map.snapshot(cx));
-//         let selection = self.selections.newest::<Point>(cx);
-
-//         if !self.seek_in_direction(
-//             &snapshot,
-//             selection.head(),
-//             false,
-//             snapshot
-//                 .buffer_snapshot
-//                 .git_diff_hunks_in_range_rev(0..selection.head().row),
-//             cx,
-//         ) {
-//             let wrapped_point = snapshot.buffer_snapshot.max_point();
-//             self.seek_in_direction(
-//                 &snapshot,
-//                 wrapped_point,
-//                 true,
-//                 snapshot
-//                     .buffer_snapshot
-//                     .git_diff_hunks_in_range_rev(0..wrapped_point.row),
-//                 cx,
-//             );
-//         }
-//     }
-
-//     fn seek_in_direction(
-//         &mut self,
-//         snapshot: &DisplaySnapshot,
-//         initial_point: Point,
-//         is_wrapped: bool,
-//         hunks: impl Iterator<Item = DiffHunk<u32>>,
-//         cx: &mut ViewContext<Editor>,
-//     ) -> bool {
-//         let display_point = initial_point.to_display_point(snapshot);
-//         let mut hunks = hunks
-//             .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
-//             .filter(|hunk| {
-//                 if is_wrapped {
-//                     true
-//                 } else {
-//                     !hunk.contains_display_row(display_point.row())
-//                 }
-//             })
-//             .dedup();
-
-//         if let Some(hunk) = hunks.next() {
-//             self.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                 let row = hunk.start_display_row();
-//                 let point = DisplayPoint::new(row, 0);
-//                 s.select_display_ranges([point..point]);
-//             });
-
-//             true
-//         } else {
-//             false
-//         }
-//     }
-
-//     pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
-//         self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
-//     }
-
-//     pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
-//         self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
-//     }
-
-//     pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
-//         self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
-//     }
-
-//     pub fn go_to_type_definition_split(
-//         &mut self,
-//         _: &GoToTypeDefinitionSplit,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
-//     }
-
-//     fn go_to_definition_of_kind(
-//         &mut self,
-//         kind: GotoDefinitionKind,
-//         split: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let Some(workspace) = self.workspace(cx) else {
-//             return;
-//         };
-//         let buffer = self.buffer.read(cx);
-//         let head = self.selections.newest::<usize>(cx).head();
-//         let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
-//             text_anchor
-//         } else {
-//             return;
-//         };
-
-//         let project = workspace.read(cx).project().clone();
-//         let definitions = project.update(cx, |project, cx| match kind {
-//             GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
-//             GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
-//         });
-
-//         cx.spawn_labeled("Fetching Definition...", |editor, mut cx| async move {
-//             let definitions = definitions.await?;
-//             editor.update(&mut cx, |editor, cx| {
-//                 editor.navigate_to_definitions(
-//                     definitions
-//                         .into_iter()
-//                         .map(GoToDefinitionLink::Text)
-//                         .collect(),
-//                     split,
-//                     cx,
-//                 );
-//             })?;
-//             Ok::<(), anyhow::Error>(())
-//         })
-//         .detach_and_log_err(cx);
-//     }
-
-//     pub fn navigate_to_definitions(
-//         &mut self,
-//         mut definitions: Vec<GoToDefinitionLink>,
-//         split: bool,
-//         cx: &mut ViewContext<Editor>,
-//     ) {
-//         let Some(workspace) = self.workspace(cx) else {
-//             return;
-//         };
-//         let pane = workspace.read(cx).active_pane().clone();
-//         // If there is one definition, just open it directly
-//         if definitions.len() == 1 {
-//             let definition = definitions.pop().unwrap();
-//             let target_task = match definition {
-//                 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
-//                 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
-//                     self.compute_target_location(lsp_location, server_id, cx)
-//                 }
-//             };
-//             cx.spawn(|editor, mut cx| async move {
-//                 let target = target_task.await.context("target resolution task")?;
-//                 if let Some(target) = target {
-//                     editor.update(&mut cx, |editor, cx| {
-//                         let range = target.range.to_offset(target.buffer.read(cx));
-//                         let range = editor.range_for_match(&range);
-//                         if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
-//                             editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
-//                                 s.select_ranges([range]);
-//                             });
-//                         } else {
-//                             cx.window_context().defer(move |cx| {
-//                                 let target_editor: ViewHandle<Self> =
-//                                     workspace.update(cx, |workspace, cx| {
-//                                         if split {
-//                                             workspace.split_project_item(target.buffer.clone(), cx)
-//                                         } else {
-//                                             workspace.open_project_item(target.buffer.clone(), cx)
-//                                         }
-//                                     });
-//                                 target_editor.update(cx, |target_editor, cx| {
-//                                     // When selecting a definition in a different buffer, disable the nav history
-//                                     // to avoid creating a history entry at the previous cursor location.
-//                                     pane.update(cx, |pane, _| pane.disable_history());
-//                                     target_editor.change_selections(
-//                                         Some(Autoscroll::fit()),
-//                                         cx,
-//                                         |s| {
-//                                             s.select_ranges([range]);
-//                                         },
-//                                     );
-//                                     pane.update(cx, |pane, _| pane.enable_history());
-//                                 });
-//                             });
-//                         }
-//                     })
-//                 } else {
-//                     Ok(())
-//                 }
-//             })
-//             .detach_and_log_err(cx);
-//         } else if !definitions.is_empty() {
-//             let replica_id = self.replica_id(cx);
-//             cx.spawn(|editor, mut cx| async move {
-//                 let (title, location_tasks) = editor
-//                     .update(&mut cx, |editor, cx| {
-//                         let title = definitions
-//                             .iter()
-//                             .find_map(|definition| match definition {
-//                                 GoToDefinitionLink::Text(link) => {
-//                                     link.origin.as_ref().map(|origin| {
-//                                         let buffer = origin.buffer.read(cx);
-//                                         format!(
-//                                             "Definitions for {}",
-//                                             buffer
-//                                                 .text_for_range(origin.range.clone())
-//                                                 .collect::<String>()
-//                                         )
-//                                     })
-//                                 }
-//                                 GoToDefinitionLink::InlayHint(_, _) => None,
-//                             })
-//                             .unwrap_or("Definitions".to_string());
-//                         let location_tasks = definitions
-//                             .into_iter()
-//                             .map(|definition| match definition {
-//                                 GoToDefinitionLink::Text(link) => {
-//                                     Task::Ready(Some(Ok(Some(link.target))))
-//                                 }
-//                                 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
-//                                     editor.compute_target_location(lsp_location, server_id, cx)
-//                                 }
-//                             })
-//                             .collect::<Vec<_>>();
-//                         (title, location_tasks)
-//                     })
-//                     .context("location tasks preparation")?;
-
-//                 let locations = futures::future::join_all(location_tasks)
-//                     .await
-//                     .into_iter()
-//                     .filter_map(|location| location.transpose())
-//                     .collect::<Result<_>>()
-//                     .context("location tasks")?;
-//                 workspace.update(&mut cx, |workspace, cx| {
-//                     Self::open_locations_in_multibuffer(
-//                         workspace, locations, replica_id, title, split, cx,
-//                     )
-//                 });
-
-//                 anyhow::Ok(())
-//             })
-//             .detach_and_log_err(cx);
-//         }
-//     }
-
-//     fn compute_target_location(
-//         &self,
-//         lsp_location: lsp::Location,
-//         server_id: LanguageServerId,
-//         cx: &mut ViewContext<Editor>,
-//     ) -> Task<anyhow::Result<Option<Location>>> {
-//         let Some(project) = self.project.clone() else {
-//             return Task::Ready(Some(Ok(None)));
-//         };
-
-//         cx.spawn(move |editor, mut cx| async move {
-//             let location_task = editor.update(&mut cx, |editor, cx| {
-//                 project.update(cx, |project, cx| {
-//                     let language_server_name =
-//                         editor.buffer.read(cx).as_singleton().and_then(|buffer| {
-//                             project
-//                                 .language_server_for_buffer(buffer.read(cx), server_id, cx)
-//                                 .map(|(_, lsp_adapter)| {
-//                                     LanguageServerName(Arc::from(lsp_adapter.name()))
-//                                 })
-//                         });
-//                     language_server_name.map(|language_server_name| {
-//                         project.open_local_buffer_via_lsp(
-//                             lsp_location.uri.clone(),
-//                             server_id,
-//                             language_server_name,
-//                             cx,
-//                         )
-//                     })
-//                 })
-//             })?;
-//             let location = match location_task {
-//                 Some(task) => Some({
-//                     let target_buffer_handle = task.await.context("open local buffer")?;
-//                     let range = {
-//                         target_buffer_handle.update(&mut cx, |target_buffer, _| {
-//                             let target_start = target_buffer.clip_point_utf16(
-//                                 point_from_lsp(lsp_location.range.start),
-//                                 Bias::Left,
-//                             );
-//                             let target_end = target_buffer.clip_point_utf16(
-//                                 point_from_lsp(lsp_location.range.end),
-//                                 Bias::Left,
-//                             );
-//                             target_buffer.anchor_after(target_start)
-//                                 ..target_buffer.anchor_before(target_end)
-//                         })
-//                     };
-//                     Location {
-//                         buffer: target_buffer_handle,
-//                         range,
-//                     }
-//                 }),
-//                 None => None,
-//             };
-//             Ok(location)
-//         })
-//     }
-
-//     pub fn find_all_references(
-//         workspace: &mut Workspace,
-//         _: &FindAllReferences,
-//         cx: &mut ViewContext<Workspace>,
-//     ) -> Option<Task<Result<()>>> {
-//         let active_item = workspace.active_item(cx)?;
-//         let editor_handle = active_item.act_as::<Self>(cx)?;
-
-//         let editor = editor_handle.read(cx);
-//         let buffer = editor.buffer.read(cx);
-//         let head = editor.selections.newest::<usize>(cx).head();
-//         let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
-//         let replica_id = editor.replica_id(cx);
-
-//         let project = workspace.project().clone();
-//         let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
-//         Some(cx.spawn_labeled(
-//             "Finding All References...",
-//             |workspace, mut cx| async move {
-//                 let locations = references.await?;
-//                 if locations.is_empty() {
-//                     return Ok(());
-//                 }
-
-//                 workspace.update(&mut cx, |workspace, cx| {
-//                     let title = locations
-//                         .first()
-//                         .as_ref()
-//                         .map(|location| {
-//                             let buffer = location.buffer.read(cx);
-//                             format!(
-//                                 "References to `{}`",
-//                                 buffer
-//                                     .text_for_range(location.range.clone())
-//                                     .collect::<String>()
-//                             )
-//                         })
-//                         .unwrap();
-//                     Self::open_locations_in_multibuffer(
-//                         workspace, locations, replica_id, title, false, cx,
-//                     );
-//                 })?;
-
-//                 Ok(())
-//             },
-//         ))
-//     }
-
-//     /// Opens a multibuffer with the given project locations in it
-//     pub fn open_locations_in_multibuffer(
-//         workspace: &mut Workspace,
-//         mut locations: Vec<Location>,
-//         replica_id: ReplicaId,
-//         title: String,
-//         split: bool,
-//         cx: &mut ViewContext<Workspace>,
-//     ) {
-//         // If there are multiple definitions, open them in a multibuffer
-//         locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
-//         let mut locations = locations.into_iter().peekable();
-//         let mut ranges_to_highlight = Vec::new();
-
-//         let excerpt_buffer = cx.add_model(|cx| {
-//             let mut multibuffer = MultiBuffer::new(replica_id);
-//             while let Some(location) = locations.next() {
-//                 let buffer = location.buffer.read(cx);
-//                 let mut ranges_for_buffer = Vec::new();
-//                 let range = location.range.to_offset(buffer);
-//                 ranges_for_buffer.push(range.clone());
-
-//                 while let Some(next_location) = locations.peek() {
-//                     if next_location.buffer == location.buffer {
-//                         ranges_for_buffer.push(next_location.range.to_offset(buffer));
-//                         locations.next();
-//                     } else {
-//                         break;
-//                     }
-//                 }
-
-//                 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
-//                 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
-//                     location.buffer.clone(),
-//                     ranges_for_buffer,
-//                     1,
-//                     cx,
-//                 ))
-//             }
-
-//             multibuffer.with_title(title)
-//         });
-
-//         let editor = cx.add_view(|cx| {
-//             Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
-//         });
-//         editor.update(cx, |editor, cx| {
-//             editor.highlight_background::<Self>(
-//                 ranges_to_highlight,
-//                 |theme| theme.editor.highlighted_line_background,
-//                 cx,
-//             );
-//         });
-//         if split {
-//             workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
-//         } else {
-//             workspace.add_item(Box::new(editor), cx);
-//         }
-//     }
-
-//     pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
-//         use language::ToOffset as _;
-
-//         let project = self.project.clone()?;
-//         let selection = self.selections.newest_anchor().clone();
-//         let (cursor_buffer, cursor_buffer_position) = self
-//             .buffer
-//             .read(cx)
-//             .text_anchor_for_position(selection.head(), cx)?;
-//         let (tail_buffer, _) = self
-//             .buffer
-//             .read(cx)
-//             .text_anchor_for_position(selection.tail(), cx)?;
-//         if tail_buffer != cursor_buffer {
-//             return None;
-//         }
-
-//         let snapshot = cursor_buffer.read(cx).snapshot();
-//         let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
-//         let prepare_rename = project.update(cx, |project, cx| {
-//             project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
-//         });
-
-//         Some(cx.spawn(|this, mut cx| async move {
-//             let rename_range = if let Some(range) = prepare_rename.await? {
-//                 Some(range)
-//             } else {
-//                 this.update(&mut cx, |this, cx| {
-//                     let buffer = this.buffer.read(cx).snapshot(cx);
-//                     let mut buffer_highlights = this
-//                         .document_highlights_for_position(selection.head(), &buffer)
-//                         .filter(|highlight| {
-//                             highlight.start.excerpt_id == selection.head().excerpt_id
-//                                 && highlight.end.excerpt_id == selection.head().excerpt_id
-//                         });
-//                     buffer_highlights
-//                         .next()
-//                         .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
-//                 })?
-//             };
-//             if let Some(rename_range) = rename_range {
-//                 let rename_buffer_range = rename_range.to_offset(&snapshot);
-//                 let cursor_offset_in_rename_range =
-//                     cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
-
-//                 this.update(&mut cx, |this, cx| {
-//                     this.take_rename(false, cx);
-//                     let style = this.style(cx);
-//                     let buffer = this.buffer.read(cx).read(cx);
-//                     let cursor_offset = selection.head().to_offset(&buffer);
-//                     let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
-//                     let rename_end = rename_start + rename_buffer_range.len();
-//                     let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
-//                     let mut old_highlight_id = None;
-//                     let old_name: Arc<str> = buffer
-//                         .chunks(rename_start..rename_end, true)
-//                         .map(|chunk| {
-//                             if old_highlight_id.is_none() {
-//                                 old_highlight_id = chunk.syntax_highlight_id;
-//                             }
-//                             chunk.text
-//                         })
-//                         .collect::<String>()
-//                         .into();
-
-//                     drop(buffer);
-
-//                     // Position the selection in the rename editor so that it matches the current selection.
-//                     this.show_local_selections = false;
-//                     let rename_editor = cx.add_view(|cx| {
-//                         let mut editor = Editor::single_line(None, cx);
-//                         if let Some(old_highlight_id) = old_highlight_id {
-//                             editor.override_text_style =
-//                                 Some(Box::new(move |style| old_highlight_id.style(&style.syntax)));
-//                         }
-//                         editor.buffer.update(cx, |buffer, cx| {
-//                             buffer.edit([(0..0, old_name.clone())], None, cx)
-//                         });
-//                         editor.select_all(&SelectAll, cx);
-//                         editor
-//                     });
-
-//                     let ranges = this
-//                         .clear_background_highlights::<DocumentHighlightWrite>(cx)
-//                         .into_iter()
-//                         .flat_map(|(_, ranges)| ranges.into_iter())
-//                         .chain(
-//                             this.clear_background_highlights::<DocumentHighlightRead>(cx)
-//                                 .into_iter()
-//                                 .flat_map(|(_, ranges)| ranges.into_iter()),
-//                         )
-//                         .collect();
-
-//                     this.highlight_text::<Rename>(
-//                         ranges,
-//                         HighlightStyle {
-//                             fade_out: Some(style.rename_fade),
-//                             ..Default::default()
-//                         },
-//                         cx,
-//                     );
-//                     cx.focus(&rename_editor);
-//                     let block_id = this.insert_blocks(
-//                         [BlockProperties {
-//                             style: BlockStyle::Flex,
-//                             position: range.start.clone(),
-//                             height: 1,
-//                             render: Arc::new({
-//                                 let editor = rename_editor.clone();
-//                                 move |cx: &mut BlockContext| {
-//                                     ChildView::new(&editor, cx)
-//                                         .contained()
-//                                         .with_padding_left(cx.anchor_x)
-//                                         .into_any()
-//                                 }
-//                             }),
-//                             disposition: BlockDisposition::Below,
-//                         }],
-//                         Some(Autoscroll::fit()),
-//                         cx,
-//                     )[0];
-//                     this.pending_rename = Some(RenameState {
-//                         range,
-//                         old_name,
-//                         editor: rename_editor,
-//                         block_id,
-//                     });
-//                 })?;
-//             }
-
-//             Ok(())
-//         }))
-//     }
-
-//     pub fn confirm_rename(
-//         workspace: &mut Workspace,
-//         _: &ConfirmRename,
-//         cx: &mut ViewContext<Workspace>,
-//     ) -> Option<Task<Result<()>>> {
-//         let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
-
-//         let (buffer, range, old_name, new_name) = editor.update(cx, |editor, cx| {
-//             let rename = editor.take_rename(false, cx)?;
-//             let buffer = editor.buffer.read(cx);
-//             let (start_buffer, start) =
-//                 buffer.text_anchor_for_position(rename.range.start.clone(), cx)?;
-//             let (end_buffer, end) =
-//                 buffer.text_anchor_for_position(rename.range.end.clone(), cx)?;
-//             if start_buffer == end_buffer {
-//                 let new_name = rename.editor.read(cx).text(cx);
-//                 Some((start_buffer, start..end, rename.old_name, new_name))
-//             } else {
-//                 None
-//             }
-//         })?;
-
-//         let rename = workspace.project().clone().update(cx, |project, cx| {
-//             project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
-//         });
-
-//         let editor = editor.downgrade();
-//         Some(cx.spawn(|workspace, mut cx| async move {
-//             let project_transaction = rename.await?;
-//             Self::open_project_transaction(
-//                 &editor,
-//                 workspace,
-//                 project_transaction,
-//                 format!("Rename: {} → {}", old_name, new_name),
-//                 cx.clone(),
-//             )
-//             .await?;
-
-//             editor.update(&mut cx, |editor, cx| {
-//                 editor.refresh_document_highlights(cx);
-//             })?;
-//             Ok(())
-//         }))
-//     }
-
-//     fn take_rename(
-//         &mut self,
-//         moving_cursor: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<RenameState> {
-//         let rename = self.pending_rename.take()?;
-//         self.remove_blocks(
-//             [rename.block_id].into_iter().collect(),
-//             Some(Autoscroll::fit()),
-//             cx,
-//         );
-//         self.clear_highlights::<Rename>(cx);
-//         self.show_local_selections = true;
-
-//         if moving_cursor {
-//             let rename_editor = rename.editor.read(cx);
-//             let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
-
-//             // Update the selection to match the position of the selection inside
-//             // the rename editor.
-//             let snapshot = self.buffer.read(cx).read(cx);
-//             let rename_range = rename.range.to_offset(&snapshot);
-//             let cursor_in_editor = snapshot
-//                 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
-//                 .min(rename_range.end);
-//             drop(snapshot);
-
-//             self.change_selections(None, cx, |s| {
-//                 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
-//             });
-//         } else {
-//             self.refresh_document_highlights(cx);
-//         }
-
-//         Some(rename)
-//     }
-
-//     #[cfg(any(test, feature = "test-support"))]
-//     pub fn pending_rename(&self) -> Option<&RenameState> {
-//         self.pending_rename.as_ref()
-//     }
-
-//     fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
-//         let project = match &self.project {
-//             Some(project) => project.clone(),
-//             None => return None,
-//         };
-
-//         Some(self.perform_format(project, FormatTrigger::Manual, cx))
-//     }
-
-//     fn perform_format(
-//         &mut self,
-//         project: Model<Project>,
-//         trigger: FormatTrigger,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Task<Result<()>> {
-//         let buffer = self.buffer().clone();
-//         let buffers = buffer.read(cx).all_buffers();
-
-//         let mut timeout = cx.background().timer(FORMAT_TIMEOUT).fuse();
-//         let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
-
-//         cx.spawn(|_, mut cx| async move {
-//             let transaction = futures::select_biased! {
-//                 _ = timeout => {
-//                     log::warn!("timed out waiting for formatting");
-//                     None
-//                 }
-//                 transaction = format.log_err().fuse() => transaction,
-//             };
-
-//             buffer.update(&mut cx, |buffer, cx| {
-//                 if let Some(transaction) = transaction {
-//                     if !buffer.is_singleton() {
-//                         buffer.push_transaction(&transaction.0, cx);
-//                     }
-//                 }
-
-//                 cx.notify();
-//             });
-
-//             Ok(())
-//         })
-//     }
-
-//     fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
-//         if let Some(project) = self.project.clone() {
-//             self.buffer.update(cx, |multi_buffer, cx| {
-//                 project.update(cx, |project, cx| {
-//                     project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
-//                 });
-//             })
-//         }
-//     }
-
-//     fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
-//         cx.show_character_palette();
-//     }
-
-//     fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
-//         if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
-//             let buffer = self.buffer.read(cx).snapshot(cx);
-//             let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
-//             let is_valid = buffer
-//                 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
-//                 .any(|entry| {
-//                     entry.diagnostic.is_primary
-//                         && !entry.range.is_empty()
-//                         && entry.range.start == primary_range_start
-//                         && entry.diagnostic.message == active_diagnostics.primary_message
-//                 });
-
-//             if is_valid != active_diagnostics.is_valid {
-//                 active_diagnostics.is_valid = is_valid;
-//                 let mut new_styles = HashMap::default();
-//                 for (block_id, diagnostic) in &active_diagnostics.blocks {
-//                     new_styles.insert(
-//                         *block_id,
-//                         diagnostic_block_renderer(diagnostic.clone(), is_valid),
-//                     );
-//                 }
-//                 self.display_map
-//                     .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
-//             }
-//         }
-//     }
-
-//     fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
-//         self.dismiss_diagnostics(cx);
-//         self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
-//             let buffer = self.buffer.read(cx).snapshot(cx);
-
-//             let mut primary_range = None;
-//             let mut primary_message = None;
-//             let mut group_end = Point::zero();
-//             let diagnostic_group = buffer
-//                 .diagnostic_group::<Point>(group_id)
-//                 .map(|entry| {
-//                     if entry.range.end > group_end {
-//                         group_end = entry.range.end;
-//                     }
-//                     if entry.diagnostic.is_primary {
-//                         primary_range = Some(entry.range.clone());
-//                         primary_message = Some(entry.diagnostic.message.clone());
-//                     }
-//                     entry
-//                 })
-//                 .collect::<Vec<_>>();
-//             let primary_range = primary_range?;
-//             let primary_message = primary_message?;
-//             let primary_range =
-//                 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
-
-//             let blocks = display_map
-//                 .insert_blocks(
-//                     diagnostic_group.iter().map(|entry| {
-//                         let diagnostic = entry.diagnostic.clone();
-//                         let message_height = diagnostic.message.lines().count() as u8;
-//                         BlockProperties {
-//                             style: BlockStyle::Fixed,
-//                             position: buffer.anchor_after(entry.range.start),
-//                             height: message_height,
-//                             render: diagnostic_block_renderer(diagnostic, true),
-//                             disposition: BlockDisposition::Below,
-//                         }
-//                     }),
-//                     cx,
-//                 )
-//                 .into_iter()
-//                 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
-//                 .collect();
-
-//             Some(ActiveDiagnosticGroup {
-//                 primary_range,
-//                 primary_message,
-//                 blocks,
-//                 is_valid: true,
-//             })
-//         });
-//         self.active_diagnostics.is_some()
-//     }
-
-//     fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
-//         if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
-//             self.display_map.update(cx, |display_map, cx| {
-//                 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
-//             });
-//             cx.notify();
-//         }
-//     }
-
-//     pub fn set_selections_from_remote(
-//         &mut self,
-//         selections: Vec<Selection<Anchor>>,
-//         pending_selection: Option<Selection<Anchor>>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let old_cursor_position = self.selections.newest_anchor().head();
-//         self.selections.change_with(cx, |s| {
-//             s.select_anchors(selections);
-//             if let Some(pending_selection) = pending_selection {
-//                 s.set_pending(pending_selection, SelectMode::Character);
-//             } else {
-//                 s.clear_pending();
-//             }
-//         });
-//         self.selections_did_change(false, &old_cursor_position, cx);
-//     }
-
-//     fn push_to_selection_history(&mut self) {
-//         self.selection_history.push(SelectionHistoryEntry {
-//             selections: self.selections.disjoint_anchors(),
-//             select_next_state: self.select_next_state.clone(),
-//             select_prev_state: self.select_prev_state.clone(),
-//             add_selections_state: self.add_selections_state.clone(),
-//         });
-//     }
-
-//     pub fn transact(
-//         &mut self,
-//         cx: &mut ViewContext<Self>,
-//         update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
-//     ) -> Option<TransactionId> {
-//         self.start_transaction_at(Instant::now(), cx);
-//         update(self, cx);
-//         self.end_transaction_at(Instant::now(), cx)
-//     }
-
-//     fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
-//         self.end_selection(cx);
-//         if let Some(tx_id) = self
-//             .buffer
-//             .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
-//         {
-//             self.selection_history
-//                 .insert_transaction(tx_id, self.selections.disjoint_anchors());
-//         }
-//     }
-
-//     fn end_transaction_at(
-//         &mut self,
-//         now: Instant,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<TransactionId> {
-//         if let Some(tx_id) = self
-//             .buffer
-//             .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
-//         {
-//             if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
-//                 *end_selections = Some(self.selections.disjoint_anchors());
-//             } else {
-//                 error!("unexpectedly ended a transaction that wasn't started by this editor");
-//             }
-
-//             cx.emit(Event::Edited);
-//             Some(tx_id)
-//         } else {
-//             None
-//         }
-//     }
-
-//     pub fn fold(&mut self, _: &Fold, cx: &mut ViewContext<Self>) {
-//         let mut fold_ranges = Vec::new();
-
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-
-//         let selections = self.selections.all_adjusted(cx);
-//         for selection in selections {
-//             let range = selection.range().sorted();
-//             let buffer_start_row = range.start.row;
-
-//             for row in (0..=range.end.row).rev() {
-//                 let fold_range = display_map.foldable_range(row);
-
-//                 if let Some(fold_range) = fold_range {
-//                     if fold_range.end.row >= buffer_start_row {
-//                         fold_ranges.push(fold_range);
-//                         if row <= range.start.row {
-//                             break;
-//                         }
-//                     }
-//                 }
-//             }
-//         }
-
-//         self.fold_ranges(fold_ranges, true, cx);
-//     }
-
-//     pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
-//         let buffer_row = fold_at.buffer_row;
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-
-//         if let Some(fold_range) = display_map.foldable_range(buffer_row) {
-//             let autoscroll = self
-//                 .selections
-//                 .all::<Point>(cx)
-//                 .iter()
-//                 .any(|selection| fold_range.overlaps(&selection.range()));
-
-//             self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
-//         }
-//     }
-
-//     pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let buffer = &display_map.buffer_snapshot;
-//         let selections = self.selections.all::<Point>(cx);
-//         let ranges = selections
-//             .iter()
-//             .map(|s| {
-//                 let range = s.display_range(&display_map).sorted();
-//                 let mut start = range.start.to_point(&display_map);
-//                 let mut end = range.end.to_point(&display_map);
-//                 start.column = 0;
-//                 end.column = buffer.line_len(end.row);
-//                 start..end
-//             })
-//             .collect::<Vec<_>>();
-
-//         self.unfold_ranges(ranges, true, true, cx);
-//     }
-
-//     pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-
-//         let intersection_range = Point::new(unfold_at.buffer_row, 0)
-//             ..Point::new(
-//                 unfold_at.buffer_row,
-//                 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
-//             );
-
-//         let autoscroll = self
-//             .selections
-//             .all::<Point>(cx)
-//             .iter()
-//             .any(|selection| selection.range().overlaps(&intersection_range));
-
-//         self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
-//     }
-
-//     pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
-//         let selections = self.selections.all::<Point>(cx);
-//         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
-//         let line_mode = self.selections.line_mode;
-//         let ranges = selections.into_iter().map(|s| {
-//             if line_mode {
-//                 let start = Point::new(s.start.row, 0);
-//                 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
-//                 start..end
-//             } else {
-//                 s.start..s.end
-//             }
-//         });
-//         self.fold_ranges(ranges, true, cx);
-//     }
-
-//     pub fn fold_ranges<T: ToOffset + Clone>(
-//         &mut self,
-//         ranges: impl IntoIterator<Item = Range<T>>,
-//         auto_scroll: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let mut ranges = ranges.into_iter().peekable();
-//         if ranges.peek().is_some() {
-//             self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
-
-//             if auto_scroll {
-//                 self.request_autoscroll(Autoscroll::fit(), cx);
-//             }
-
-//             cx.notify();
-//         }
-//     }
-
-//     pub fn unfold_ranges<T: ToOffset + Clone>(
-//         &mut self,
-//         ranges: impl IntoIterator<Item = Range<T>>,
-//         inclusive: bool,
-//         auto_scroll: bool,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         let mut ranges = ranges.into_iter().peekable();
-//         if ranges.peek().is_some() {
-//             self.display_map
-//                 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
-//             if auto_scroll {
-//                 self.request_autoscroll(Autoscroll::fit(), cx);
-//             }
-
-//             cx.notify();
-//         }
-//     }
-
-//     pub fn gutter_hover(
-//         &mut self,
-//         GutterHover { hovered }: &GutterHover,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.gutter_hovered = *hovered;
-//         cx.notify();
-//     }
-
-//     pub fn insert_blocks(
-//         &mut self,
-//         blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
-//         autoscroll: Option<Autoscroll>,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Vec<BlockId> {
-//         let blocks = self
-//             .display_map
-//             .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
-//         if let Some(autoscroll) = autoscroll {
-//             self.request_autoscroll(autoscroll, cx);
-//         }
-//         blocks
-//     }
-
-//     pub fn replace_blocks(
-//         &mut self,
-//         blocks: HashMap<BlockId, RenderBlock>,
-//         autoscroll: Option<Autoscroll>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.display_map
-//             .update(cx, |display_map, _| display_map.replace_blocks(blocks));
-//         if let Some(autoscroll) = autoscroll {
-//             self.request_autoscroll(autoscroll, cx);
-//         }
-//     }
-
-//     pub fn remove_blocks(
-//         &mut self,
-//         block_ids: HashSet<BlockId>,
-//         autoscroll: Option<Autoscroll>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.display_map.update(cx, |display_map, cx| {
-//             display_map.remove_blocks(block_ids, cx)
-//         });
-//         if let Some(autoscroll) = autoscroll {
-//             self.request_autoscroll(autoscroll, cx);
-//         }
-//     }
-
-//     pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
-//         self.display_map
-//             .update(cx, |map, cx| map.snapshot(cx))
-//             .longest_row()
-//     }
-
-//     pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
-//         self.display_map
-//             .update(cx, |map, cx| map.snapshot(cx))
-//             .max_point()
-//     }
-
-//     pub fn text(&self, cx: &AppContext) -> String {
-//         self.buffer.read(cx).read(cx).text()
-//     }
-
-//     pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
-//         self.transact(cx, |this, cx| {
-//             this.buffer
-//                 .read(cx)
-//                 .as_singleton()
-//                 .expect("you can only call set_text on editors for singleton buffers")
-//                 .update(cx, |buffer, cx| buffer.set_text(text, cx));
-//         });
-//     }
-
-//     pub fn display_text(&self, cx: &mut AppContext) -> String {
-//         self.display_map
-//             .update(cx, |map, cx| map.snapshot(cx))
-//             .text()
-//     }
-
-//     pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
-//         let mut wrap_guides = smallvec::smallvec![];
-
-//         if self.show_wrap_guides == Some(false) {
-//             return wrap_guides;
-//         }
-
-//         let settings = self.buffer.read(cx).settings_at(0, cx);
-//         if settings.show_wrap_guides {
-//             if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
-//                 wrap_guides.push((soft_wrap as usize, true));
-//             }
-//             wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
-//         }
-
-//         wrap_guides
-//     }
-
-//     pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
-//         let settings = self.buffer.read(cx).settings_at(0, cx);
-//         let mode = self
-//             .soft_wrap_mode_override
-//             .unwrap_or_else(|| settings.soft_wrap);
-//         match mode {
-//             language_settings::SoftWrap::None => SoftWrap::None,
-//             language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
-//             language_settings::SoftWrap::PreferredLineLength => {
-//                 SoftWrap::Column(settings.preferred_line_length)
-//             }
-//         }
-//     }
-
-//     pub fn set_soft_wrap_mode(
-//         &mut self,
-//         mode: language_settings::SoftWrap,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.soft_wrap_mode_override = Some(mode);
-//         cx.notify();
-//     }
-
-//     pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut AppContext) -> bool {
-//         self.display_map
-//             .update(cx, |map, cx| map.set_wrap_width(width, cx))
-//     }
-
-//     pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
-//         if self.soft_wrap_mode_override.is_some() {
-//             self.soft_wrap_mode_override.take();
-//         } else {
-//             let soft_wrap = match self.soft_wrap_mode(cx) {
-//                 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
-//                 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
-//             };
-//             self.soft_wrap_mode_override = Some(soft_wrap);
-//         }
-//         cx.notify();
-//     }
-
-//     pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
-//         self.show_gutter = show_gutter;
-//         cx.notify();
-//     }
-
-//     pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
-//         self.show_wrap_guides = Some(show_gutter);
-//         cx.notify();
-//     }
-
-//     pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
-//         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
-//             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
-//                 cx.reveal_path(&file.abs_path(cx));
-//             }
-//         }
-//     }
-
-//     pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
-//         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
-//             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
-//                 if let Some(path) = file.abs_path(cx).to_str() {
-//                     cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
-//                 }
-//             }
-//         }
-//     }
-
-//     pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
-//         if let Some(buffer) = self.buffer().read(cx).as_singleton() {
-//             if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
-//                 if let Some(path) = file.path().to_str() {
-//                     cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
-//                 }
-//             }
-//         }
-//     }
-
-//     pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
-//         self.highlighted_rows = rows;
-//     }
-
-//     pub fn highlighted_rows(&self) -> Option<Range<u32>> {
-//         self.highlighted_rows.clone()
-//     }
-
-//     pub fn highlight_background<T: 'static>(
-//         &mut self,
-//         ranges: Vec<Range<Anchor>>,
-//         color_fetcher: fn(&Theme) -> Color,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.background_highlights
-//             .insert(TypeId::of::<T>(), (color_fetcher, ranges));
-//         cx.notify();
-//     }
-
-//     pub fn highlight_inlay_background<T: 'static>(
-//         &mut self,
-//         ranges: Vec<InlayHighlight>,
-//         color_fetcher: fn(&Theme) -> Color,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         // TODO: no actual highlights happen for inlays currently, find a way to do that
-//         self.inlay_background_highlights
-//             .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
-//         cx.notify();
-//     }
-
-//     pub fn clear_background_highlights<T: 'static>(
-//         &mut self,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Option<BackgroundHighlight> {
-//         let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
-//         let inlay_highlights = self
-//             .inlay_background_highlights
-//             .remove(&Some(TypeId::of::<T>()));
-//         if text_highlights.is_some() || inlay_highlights.is_some() {
-//             cx.notify();
-//         }
-//         text_highlights
-//     }
-
-//     #[cfg(feature = "test-support")]
-//     pub fn all_text_background_highlights(
-//         &mut self,
-//         cx: &mut ViewContext<Self>,
-//     ) -> Vec<(Range<DisplayPoint>, Color)> {
-//         let snapshot = self.snapshot(cx);
-//         let buffer = &snapshot.buffer_snapshot;
-//         let start = buffer.anchor_before(0);
-//         let end = buffer.anchor_after(buffer.len());
-//         let theme = theme::current(cx);
-//         self.background_highlights_in_range(start..end, &snapshot, theme.as_ref())
-//     }
-
-//     fn document_highlights_for_position<'a>(
-//         &'a self,
-//         position: Anchor,
-//         buffer: &'a MultiBufferSnapshot,
-//     ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
-//         let read_highlights = self
-//             .background_highlights
-//             .get(&TypeId::of::<DocumentHighlightRead>())
-//             .map(|h| &h.1);
-//         let write_highlights = self
-//             .background_highlights
-//             .get(&TypeId::of::<DocumentHighlightWrite>())
-//             .map(|h| &h.1);
-//         let left_position = position.bias_left(buffer);
-//         let right_position = position.bias_right(buffer);
-//         read_highlights
-//             .into_iter()
-//             .chain(write_highlights)
-//             .flat_map(move |ranges| {
-//                 let start_ix = match ranges.binary_search_by(|probe| {
-//                     let cmp = probe.end.cmp(&left_position, buffer);
-//                     if cmp.is_ge() {
-//                         Ordering::Greater
-//                     } else {
-//                         Ordering::Less
-//                     }
-//                 }) {
-//                     Ok(i) | Err(i) => i,
-//                 };
-
-//                 let right_position = right_position.clone();
-//                 ranges[start_ix..]
-//                     .iter()
-//                     .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
-//             })
-//     }
-
-//     pub fn background_highlights_in_range(
-//         &self,
-//         search_range: Range<Anchor>,
-//         display_snapshot: &DisplaySnapshot,
-//         theme: &Theme,
-//     ) -> Vec<(Range<DisplayPoint>, Color)> {
-//         let mut results = Vec::new();
-//         for (color_fetcher, ranges) in self.background_highlights.values() {
-//             let color = color_fetcher(theme);
-//             let start_ix = match ranges.binary_search_by(|probe| {
-//                 let cmp = probe
-//                     .end
-//                     .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
-//                 if cmp.is_gt() {
-//                     Ordering::Greater
-//                 } else {
-//                     Ordering::Less
-//                 }
-//             }) {
-//                 Ok(i) | Err(i) => i,
-//             };
-//             for range in &ranges[start_ix..] {
-//                 if range
-//                     .start
-//                     .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
-//                     .is_ge()
-//                 {
-//                     break;
-//                 }
-
-//                 let start = range.start.to_display_point(&display_snapshot);
-//                 let end = range.end.to_display_point(&display_snapshot);
-//                 results.push((start..end, color))
-//             }
-//         }
-//         results
-//     }
-
-//     pub fn background_highlight_row_ranges<T: 'static>(
-//         &self,
-//         search_range: Range<Anchor>,
-//         display_snapshot: &DisplaySnapshot,
-//         count: usize,
-//     ) -> Vec<RangeInclusive<DisplayPoint>> {
-//         let mut results = Vec::new();
-//         let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
-//             return vec![];
-//         };
-
-//         let start_ix = match ranges.binary_search_by(|probe| {
-//             let cmp = probe
-//                 .end
-//                 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
-//             if cmp.is_gt() {
-//                 Ordering::Greater
-//             } else {
-//                 Ordering::Less
-//             }
-//         }) {
-//             Ok(i) | Err(i) => i,
-//         };
-//         let mut push_region = |start: Option<Point>, end: Option<Point>| {
-//             if let (Some(start_display), Some(end_display)) = (start, end) {
-//                 results.push(
-//                     start_display.to_display_point(display_snapshot)
-//                         ..=end_display.to_display_point(display_snapshot),
-//                 );
-//             }
-//         };
-//         let mut start_row: Option<Point> = None;
-//         let mut end_row: Option<Point> = None;
-//         if ranges.len() > count {
-//             return Vec::new();
-//         }
-//         for range in &ranges[start_ix..] {
-//             if range
-//                 .start
-//                 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
-//                 .is_ge()
-//             {
-//                 break;
-//             }
-//             let end = range.end.to_point(&display_snapshot.buffer_snapshot);
-//             if let Some(current_row) = &end_row {
-//                 if end.row == current_row.row {
-//                     continue;
-//                 }
-//             }
-//             let start = range.start.to_point(&display_snapshot.buffer_snapshot);
-//             if start_row.is_none() {
-//                 assert_eq!(end_row, None);
-//                 start_row = Some(start);
-//                 end_row = Some(end);
-//                 continue;
-//             }
-//             if let Some(current_end) = end_row.as_mut() {
-//                 if start.row > current_end.row + 1 {
-//                     push_region(start_row, end_row);
-//                     start_row = Some(start);
-//                     end_row = Some(end);
-//                 } else {
-//                     // Merge two hunks.
-//                     *current_end = end;
-//                 }
-//             } else {
-//                 unreachable!();
-//             }
-//         }
-//         // We might still have a hunk that was not rendered (if there was a search hit on the last line)
-//         push_region(start_row, end_row);
-//         results
-//     }
-
-//     pub fn highlight_text<T: 'static>(
-//         &mut self,
-//         ranges: Vec<Range<Anchor>>,
-//         style: HighlightStyle,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.display_map.update(cx, |map, _| {
-//             map.highlight_text(TypeId::of::<T>(), ranges, style)
-//         });
-//         cx.notify();
-//     }
-
-//     pub fn highlight_inlays<T: 'static>(
-//         &mut self,
-//         highlights: Vec<InlayHighlight>,
-//         style: HighlightStyle,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         self.display_map.update(cx, |map, _| {
-//             map.highlight_inlays(TypeId::of::<T>(), highlights, style)
-//         });
-//         cx.notify();
-//     }
-
-//     pub fn text_highlights<'a, T: 'static>(
-//         &'a self,
-//         cx: &'a AppContext,
-//     ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
-//         self.display_map.read(cx).text_highlights(TypeId::of::<T>())
-//     }
-
-//     pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
-//         let cleared = self
-//             .display_map
-//             .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
-//         if cleared {
-//             cx.notify();
-//         }
-//     }
-
-//     pub fn show_local_cursors(&self, cx: &AppContext) -> bool {
-//         self.blink_manager.read(cx).visible() && self.focused
-//     }
-
-//     fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
-//         cx.notify();
-//     }
-
-//     fn on_buffer_event(
-//         &mut self,
-//         multibuffer: Model<MultiBuffer>,
-//         event: &multi_buffer::Event,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         match event {
-//             multi_buffer::Event::Edited {
-//                 sigleton_buffer_edited,
-//             } => {
-//                 self.refresh_active_diagnostics(cx);
-//                 self.refresh_code_actions(cx);
-//                 if self.has_active_copilot_suggestion(cx) {
-//                     self.update_visible_copilot_suggestion(cx);
-//                 }
-//                 cx.emit(Event::BufferEdited);
-
-//                 if *sigleton_buffer_edited {
-//                     if let Some(project) = &self.project {
-//                         let project = project.read(cx);
-//                         let languages_affected = multibuffer
-//                             .read(cx)
-//                             .all_buffers()
-//                             .into_iter()
-//                             .filter_map(|buffer| {
-//                                 let buffer = buffer.read(cx);
-//                                 let language = buffer.language()?;
-//                                 if project.is_local()
-//                                     && project.language_servers_for_buffer(buffer, cx).count() == 0
-//                                 {
-//                                     None
-//                                 } else {
-//                                     Some(language)
-//                                 }
-//                             })
-//                             .cloned()
-//                             .collect::<HashSet<_>>();
-//                         if !languages_affected.is_empty() {
-//                             self.refresh_inlay_hints(
-//                                 InlayHintRefreshReason::BufferEdited(languages_affected),
-//                                 cx,
-//                             );
-//                         }
-//                     }
-//                 }
-//             }
-//             multi_buffer::Event::ExcerptsAdded {
-//                 buffer,
-//                 predecessor,
-//                 excerpts,
-//             } => {
-//                 cx.emit(Event::ExcerptsAdded {
-//                     buffer: buffer.clone(),
-//                     predecessor: *predecessor,
-//                     excerpts: excerpts.clone(),
-//                 });
-//                 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
-//             }
-//             multi_buffer::Event::ExcerptsRemoved { ids } => {
-//                 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
-//                 cx.emit(Event::ExcerptsRemoved { ids: ids.clone() })
-//             }
-//             multi_buffer::Event::Reparsed => cx.emit(Event::Reparsed),
-//             multi_buffer::Event::DirtyChanged => cx.emit(Event::DirtyChanged),
-//             multi_buffer::Event::Saved => cx.emit(Event::Saved),
-//             multi_buffer::Event::FileHandleChanged => cx.emit(Event::TitleChanged),
-//             multi_buffer::Event::Reloaded => cx.emit(Event::TitleChanged),
-//             multi_buffer::Event::DiffBaseChanged => cx.emit(Event::DiffBaseChanged),
-//             multi_buffer::Event::Closed => cx.emit(Event::Closed),
-//             multi_buffer::Event::DiagnosticsUpdated => {
-//                 self.refresh_active_diagnostics(cx);
-//             }
-//             _ => {}
-//         };
-//     }
-
-//     fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
-//         cx.notify();
-//     }
-
-//     fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
-//         self.refresh_copilot_suggestions(true, cx);
-//         self.refresh_inlay_hints(
-//             InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
-//                 self.selections.newest_anchor().head(),
-//                 &self.buffer.read(cx).snapshot(cx),
-//                 cx,
-//             )),
-//             cx,
-//         );
-//     }
-
-//     pub fn set_searchable(&mut self, searchable: bool) {
-//         self.searchable = searchable;
-//     }
-
-//     pub fn searchable(&self) -> bool {
-//         self.searchable
-//     }
-
-//     fn open_excerpts(workspace: &mut Workspace, _: &OpenExcerpts, cx: &mut ViewContext<Workspace>) {
-//         let active_item = workspace.active_item(cx);
-//         let editor_handle = if let Some(editor) = active_item
-//             .as_ref()
-//             .and_then(|item| item.act_as::<Self>(cx))
-//         {
-//             editor
-//         } else {
-//             cx.propagate_action();
-//             return;
-//         };
-
-//         let editor = editor_handle.read(cx);
-//         let buffer = editor.buffer.read(cx);
-//         if buffer.is_singleton() {
-//             cx.propagate_action();
-//             return;
-//         }
-
-//         let mut new_selections_by_buffer = HashMap::default();
-//         for selection in editor.selections.all::<usize>(cx) {
-//             for (buffer, mut range, _) in
-//                 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
-//             {
-//                 if selection.reversed {
-//                     mem::swap(&mut range.start, &mut range.end);
-//                 }
-//                 new_selections_by_buffer
-//                     .entry(buffer)
-//                     .or_insert(Vec::new())
-//                     .push(range)
-//             }
-//         }
-
-//         editor_handle.update(cx, |editor, cx| {
-//             editor.push_to_nav_history(editor.selections.newest_anchor().head(), None, cx);
-//         });
-//         let pane = workspace.active_pane().clone();
-//         pane.update(cx, |pane, _| pane.disable_history());
-
-//         // We defer the pane interaction because we ourselves are a workspace item
-//         // and activating a new item causes the pane to call a method on us reentrantly,
-//         // which panics if we're on the stack.
-//         cx.defer(move |workspace, cx| {
-//             for (buffer, ranges) in new_selections_by_buffer.into_iter() {
-//                 let editor = workspace.open_project_item::<Self>(buffer, cx);
-//                 editor.update(cx, |editor, cx| {
-//                     editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
-//                         s.select_ranges(ranges);
-//                     });
-//                 });
-//             }
-
-//             pane.update(cx, |pane, _| pane.enable_history());
-//         });
-//     }
-
-//     fn jump(
-//         workspace: &mut Workspace,
-//         path: ProjectPath,
-//         position: Point,
-//         anchor: language::Anchor,
-//         cx: &mut ViewContext<Workspace>,
-//     ) {
-//         let editor = workspace.open_path(path, None, true, cx);
-//         cx.spawn(|_, mut cx| async move {
-//             let editor = editor
-//                 .await?
-//                 .downcast::<Editor>()
-//                 .ok_or_else(|| anyhow!("opened item was not an editor"))?
-//                 .downgrade();
-//             editor.update(&mut cx, |editor, cx| {
-//                 let buffer = editor
-//                     .buffer()
-//                     .read(cx)
-//                     .as_singleton()
-//                     .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
-//                 let buffer = buffer.read(cx);
-//                 let cursor = if buffer.can_resolve(&anchor) {
-//                     language::ToPoint::to_point(&anchor, buffer)
-//                 } else {
-//                     buffer.clip_point(position, Bias::Left)
-//                 };
-
-//                 let nav_history = editor.nav_history.take();
-//                 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
-//                     s.select_ranges([cursor..cursor]);
-//                 });
-//                 editor.nav_history = nav_history;
-
-//                 anyhow::Ok(())
-//             })??;
-
-//             anyhow::Ok(())
-//         })
-//         .detach_and_log_err(cx);
-//     }
-
-//     fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
-//         let snapshot = self.buffer.read(cx).read(cx);
-//         let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
-//         Some(
-//             ranges
-//                 .iter()
-//                 .map(move |range| {
-//                     range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
-//                 })
-//                 .collect(),
-//         )
-//     }
-
-//     fn selection_replacement_ranges(
-//         &self,
-//         range: Range<OffsetUtf16>,
-//         cx: &AppContext,
-//     ) -> Vec<Range<OffsetUtf16>> {
-//         let selections = self.selections.all::<OffsetUtf16>(cx);
-//         let newest_selection = selections
-//             .iter()
-//             .max_by_key(|selection| selection.id)
-//             .unwrap();
-//         let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
-//         let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
-//         let snapshot = self.buffer.read(cx).read(cx);
-//         selections
-//             .into_iter()
-//             .map(|mut selection| {
-//                 selection.start.0 =
-//                     (selection.start.0 as isize).saturating_add(start_delta) as usize;
-//                 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
-//                 snapshot.clip_offset_utf16(selection.start, Bias::Left)
-//                     ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
-//             })
-//             .collect()
-//     }
-
-//     fn report_copilot_event(
-//         &self,
-//         suggestion_id: Option<String>,
-//         suggestion_accepted: bool,
-//         cx: &AppContext,
-//     ) {
-//         let Some(project) = &self.project else { return };
-
-//         // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
-//         let file_extension = self
-//             .buffer
-//             .read(cx)
-//             .as_singleton()
-//             .and_then(|b| b.read(cx).file())
-//             .and_then(|file| Path::new(file.file_name(cx)).extension())
-//             .and_then(|e| e.to_str())
-//             .map(|a| a.to_string());
-
-//         let telemetry = project.read(cx).client().telemetry().clone();
-//         let telemetry_settings = *settings::get::<TelemetrySettings>(cx);
-
-//         let event = ClickhouseEvent::Copilot {
-//             suggestion_id,
-//             suggestion_accepted,
-//             file_extension,
-//         };
-//         telemetry.report_clickhouse_event(event, telemetry_settings);
-//     }
-
-//     #[cfg(any(test, feature = "test-support"))]
-//     fn report_editor_event(
-//         &self,
-//         _operation: &'static str,
-//         _file_extension: Option<String>,
-//         _cx: &AppContext,
-//     ) {
-//     }
-
-//     #[cfg(not(any(test, feature = "test-support")))]
-//     fn report_editor_event(
-//         &self,
-//         operation: &'static str,
-//         file_extension: Option<String>,
-//         cx: &AppContext,
-//     ) {
-//         let Some(project) = &self.project else { return };
-
-//         // If None, we are in a file without an extension
-//         let file = self
-//             .buffer
-//             .read(cx)
-//             .as_singleton()
-//             .and_then(|b| b.read(cx).file());
-//         let file_extension = file_extension.or(file
-//             .as_ref()
-//             .and_then(|file| Path::new(file.file_name(cx)).extension())
-//             .and_then(|e| e.to_str())
-//             .map(|a| a.to_string()));
-
-//         let vim_mode = cx
-//             .global::<SettingsStore>()
-//             .raw_user_settings()
-//             .get("vim_mode")
-//             == Some(&serde_json::Value::Bool(true));
-//         let telemetry_settings = *settings::get::<TelemetrySettings>(cx);
-//         let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
-//         let copilot_enabled_for_language = self
-//             .buffer
-//             .read(cx)
-//             .settings_at(0, cx)
-//             .show_copilot_suggestions;
-
-//         let telemetry = project.read(cx).client().telemetry().clone();
-//         let event = ClickhouseEvent::Editor {
-//             file_extension,
-//             vim_mode,
-//             operation,
-//             copilot_enabled,
-//             copilot_enabled_for_language,
-//         };
-//         telemetry.report_clickhouse_event(event, telemetry_settings)
-//     }
-
-//     /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
-//     /// with each line being an array of {text, highlight} objects.
-//     fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
-//         let Some(buffer) = self.buffer.read(cx).as_singleton() else {
-//             return;
-//         };
-
-//         #[derive(Serialize)]
-//         struct Chunk<'a> {
-//             text: String,
-//             highlight: Option<&'a str>,
-//         }
-
-//         let snapshot = buffer.read(cx).snapshot();
-//         let range = self
-//             .selected_text_range(cx)
-//             .and_then(|selected_range| {
-//                 if selected_range.is_empty() {
-//                     None
-//                 } else {
-//                     Some(selected_range)
-//                 }
-//             })
-//             .unwrap_or_else(|| 0..snapshot.len());
-
-//         let chunks = snapshot.chunks(range, true);
-//         let mut lines = Vec::new();
-//         let mut line: VecDeque<Chunk> = VecDeque::new();
-
-//         let theme = &theme::current(cx).editor.syntax;
-
-//         for chunk in chunks {
-//             let highlight = chunk.syntax_highlight_id.and_then(|id| id.name(theme));
-//             let mut chunk_lines = chunk.text.split("\n").peekable();
-//             while let Some(text) = chunk_lines.next() {
-//                 let mut merged_with_last_token = false;
-//                 if let Some(last_token) = line.back_mut() {
-//                     if last_token.highlight == highlight {
-//                         last_token.text.push_str(text);
-//                         merged_with_last_token = true;
-//                     }
-//                 }
-
-//                 if !merged_with_last_token {
-//                     line.push_back(Chunk {
-//                         text: text.into(),
-//                         highlight,
-//                     });
-//                 }
-
-//                 if chunk_lines.peek().is_some() {
-//                     if line.len() > 1 && line.front().unwrap().text.is_empty() {
-//                         line.pop_front();
-//                     }
-//                     if line.len() > 1 && line.back().unwrap().text.is_empty() {
-//                         line.pop_back();
-//                     }
-
-//                     lines.push(mem::take(&mut line));
-//                 }
-//             }
-//         }
-
-//         let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
-//             return;
-//         };
-//         cx.write_to_clipboard(ClipboardItem::new(lines));
-//     }
-
-//     pub fn inlay_hint_cache(&self) -> &InlayHintCache {
-//         &self.inlay_hint_cache
-//     }
-
-//     pub fn replay_insert_event(
-//         &mut self,
-//         text: &str,
-//         relative_utf16_range: Option<Range<isize>>,
-//         cx: &mut ViewContext<Self>,
-//     ) {
-//         if !self.input_enabled {
-//             cx.emit(Event::InputIgnored { text: text.into() });
-//             return;
-//         }
-//         if let Some(relative_utf16_range) = relative_utf16_range {
-//             let selections = self.selections.all::<OffsetUtf16>(cx);
-//             self.change_selections(None, cx, |s| {
-//                 let new_ranges = selections.into_iter().map(|range| {
-//                     let start = OffsetUtf16(
-//                         range
-//                             .head()
-//                             .0
-//                             .saturating_add_signed(relative_utf16_range.start),
-//                     );
-//                     let end = OffsetUtf16(
-//                         range
-//                             .head()
-//                             .0
-//                             .saturating_add_signed(relative_utf16_range.end),
-//                     );
-//                     start..end
-//                 });
-//                 s.select_ranges(new_ranges);
-//             });
-//         }
-
-//         self.handle_input(text, cx);
-//     }
-
-//     pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
-//         let Some(project) = self.project.as_ref() else {
-//             return false;
-//         };
-//         let project = project.read(cx);
-
-//         let mut supports = false;
-//         self.buffer().read(cx).for_each_buffer(|buffer| {
-//             if !supports {
-//                 supports = project
-//                     .language_servers_for_buffer(buffer.read(cx), cx)
-//                     .any(
-//                         |(_, server)| match server.capabilities().inlay_hint_provider {
-//                             Some(lsp::OneOf::Left(enabled)) => enabled,
-//                             Some(lsp::OneOf::Right(_)) => true,
-//                             None => false,
-//                         },
-//                     )
-//             }
-//         });
-//         supports
-//     }
-// }
-
-pub trait CollaborationHub {
-    fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
-    fn user_participant_indices<'a>(
-        &self,
-        cx: &'a AppContext,
-    ) -> &'a HashMap<u64, ParticipantIndex>;
-}
-
-impl CollaborationHub for Model<Project> {
-    fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
-        self.read(cx).collaborators()
-    }
-
-    fn user_participant_indices<'a>(
-        &self,
-        cx: &'a AppContext,
-    ) -> &'a HashMap<u64, ParticipantIndex> {
-        self.read(cx).user_store().read(cx).participant_indices()
-    }
-}
-
-fn inlay_hint_settings(
-    location: Anchor,
-    snapshot: &MultiBufferSnapshot,
-    cx: &mut ViewContext<'_, Editor>,
-) -> InlayHintSettings {
-    let file = snapshot.file_at(location);
-    let language = snapshot.language_at(location);
-    let settings = all_language_settings(file, cx);
-    settings
-        .language(language.map(|l| l.name()).as_deref())
-        .inlay_hints
-}
-
-fn consume_contiguous_rows(
-    contiguous_row_selections: &mut Vec<Selection<Point>>,
-    selection: &Selection<Point>,
-    display_map: &DisplaySnapshot,
-    selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
-) -> (u32, u32) {
-    contiguous_row_selections.push(selection.clone());
-    let start_row = selection.start.row;
-    let mut end_row = ending_row(selection, display_map);
-
-    while let Some(next_selection) = selections.peek() {
-        if next_selection.start.row <= end_row {
-            end_row = ending_row(next_selection, display_map);
-            contiguous_row_selections.push(selections.next().unwrap().clone());
-        } else {
-            break;
-        }
-    }
-    (start_row, end_row)
-}
-
-fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
-    if next_selection.end.column > 0 || next_selection.is_empty() {
-        display_map.next_line_boundary(next_selection.end).0.row + 1
-    } else {
-        next_selection.end.row
-    }
-}
-
-impl EditorSnapshot {
-    pub fn remote_selections_in_range<'a>(
-        &'a self,
-        range: &'a Range<Anchor>,
-        collaboration_hub: &dyn CollaborationHub,
-        cx: &'a AppContext,
-    ) -> impl 'a + Iterator<Item = RemoteSelection> {
-        let participant_indices = collaboration_hub.user_participant_indices(cx);
-        let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
-        let collaborators_by_replica_id = collaborators_by_peer_id
-            .iter()
-            .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
-            .collect::<HashMap<_, _>>();
-        self.buffer_snapshot
-            .remote_selections_in_range(range)
-            .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
-                let collaborator = collaborators_by_replica_id.get(&replica_id)?;
-                let participant_index = participant_indices.get(&collaborator.user_id).copied();
-                Some(RemoteSelection {
-                    replica_id,
-                    selection,
-                    cursor_shape,
-                    line_mode,
-                    participant_index,
-                    peer_id: collaborator.peer_id,
-                })
-            })
-    }
-
-    pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
-        self.display_snapshot.buffer_snapshot.language_at(position)
-    }
-
-    pub fn is_focused(&self) -> bool {
-        self.is_focused
-    }
-
-    pub fn placeholder_text(&self) -> Option<&Arc<str>> {
-        self.placeholder_text.as_ref()
-    }
-
-    pub fn scroll_position(&self) -> gpui::Point<Pixels> {
-        self.scroll_anchor.scroll_position(&self.display_snapshot)
-    }
-}
-
-impl Deref for EditorSnapshot {
-    type Target = DisplaySnapshot;
-
-    fn deref(&self) -> &Self::Target {
-        &self.display_snapshot
-    }
-}
-
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub enum Event {
-    InputIgnored {
-        text: Arc<str>,
-    },
-    InputHandled {
-        utf16_range_to_replace: Option<Range<isize>>,
-        text: Arc<str>,
-    },
-    ExcerptsAdded {
-        buffer: Model<Buffer>,
-        predecessor: ExcerptId,
-        excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
-    },
-    ExcerptsRemoved {
-        ids: Vec<ExcerptId>,
-    },
-    BufferEdited,
-    Edited,
-    Reparsed,
-    Focused,
-    Blurred,
-    DirtyChanged,
-    Saved,
-    TitleChanged,
-    DiffBaseChanged,
-    SelectionsChanged {
-        local: bool,
-    },
-    ScrollPositionChanged {
-        local: bool,
-        autoscroll: bool,
-    },
-    Closed,
-}
-
-pub struct EditorFocused(pub View<Editor>);
-pub struct EditorBlurred(pub View<Editor>);
-pub struct EditorReleased(pub WeakView<Editor>);
-
-// impl Entity for Editor {
-//     type Event = Event;
-
-//     fn release(&mut self, cx: &mut AppContext) {
-//         cx.emit_global(EditorReleased(self.handle.clone()));
-//     }
-// }
-//
-impl EventEmitter for Editor {
-    type Event = Event;
-}
-
-impl Render for Editor {
-    type Element = EditorElement;
-
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
-        todo!()
-    }
-}
-
-// impl View for Editor {
-//     fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
-//         let style = self.style(cx);
-//         let font_changed = self.display_map.update(cx, |map, cx| {
-//             map.set_fold_ellipses_color(style.folds.ellipses.text_color);
-//             map.set_font(style.text.font_id, style.text.font_size, cx)
-//         });
-
-//         if font_changed {
-//             cx.defer(move |editor, cx: &mut ViewContext<Editor>| {
-//                 hide_hover(editor, cx);
-//                 hide_link_definition(editor, cx);
-//             });
-//         }
-
-//         Stack::new()
-//             .with_child(EditorElement::new(style.clone()))
-//             .with_child(ChildView::new(&self.mouse_context_menu, cx))
-//             .into_any()
-//     }
-
-//     fn ui_name() -> &'static str {
-//         "Editor"
-//     }
-
-//     fn focus_in(&mut self, focused: AnyView, cx: &mut ViewContext<Self>) {
-//         if cx.is_self_focused() {
-//             let focused_event = EditorFocused(cx.handle());
-//             cx.emit(Event::Focused);
-//             cx.emit_global(focused_event);
-//         }
-//         if let Some(rename) = self.pending_rename.as_ref() {
-//             cx.focus(&rename.editor);
-//         } else if cx.is_self_focused() || !focused.is::<Editor>() {
-//             if !self.focused {
-//                 self.blink_manager.update(cx, BlinkManager::enable);
-//             }
-//             self.focused = true;
-//             self.buffer.update(cx, |buffer, cx| {
-//                 buffer.finalize_last_transaction(cx);
-//                 if self.leader_peer_id.is_none() {
-//                     buffer.set_active_selections(
-//                         &self.selections.disjoint_anchors(),
-//                         self.selections.line_mode,
-//                         self.cursor_shape,
-//                         cx,
-//                     );
-//                 }
-//             });
-//         }
+//     fn focus_in(&mut self, focused: AnyView, cx: &mut ViewContext<Self>) {
+//         if cx.is_self_focused() {
+//             let focused_event = EditorFocused(cx.handle());
+//             cx.emit(Event::Focused);
+//             cx.emit_global(focused_event);
+//         }
+//         if let Some(rename) = self.pending_rename.as_ref() {
+//             cx.focus(&rename.editor);
+//         } else if cx.is_self_focused() || !focused.is::<Editor>() {
+//             if !self.focused {
+//                 self.blink_manager.update(cx, BlinkManager::enable);
+//             }
+//             self.focused = true;
+//             self.buffer.update(cx, |buffer, cx| {
+//                 buffer.finalize_last_transaction(cx);
+//                 if self.leader_peer_id.is_none() {
+//                     buffer.set_active_selections(
+//                         &self.selections.disjoint_anchors(),
+//                         self.selections.line_mode,
+//                         self.cursor_shape,
+//                         cx,
+//                     );
+//                 }
+//             });
+//         }
 //     }
 
 //     fn focus_out(&mut self, _: AnyView, cx: &mut ViewContext<Self>) {

crates/editor2/src/items.rs 🔗

@@ -48,106 +48,108 @@ impl FollowableItem for Editor {
         state: &mut Option<proto::view::Variant>,
         cx: &mut AppContext,
     ) -> Option<Task<Result<View<Self>>>> {
-        let project = workspace.read(cx).project().to_owned();
-        let Some(proto::view::Variant::Editor(_)) = state else {
-            return None;
-        };
-        let Some(proto::view::Variant::Editor(state)) = state.take() else {
-            unreachable!()
-        };
-
-        let client = project.read(cx).client();
-        let replica_id = project.read(cx).replica_id();
-        let buffer_ids = state
-            .excerpts
-            .iter()
-            .map(|excerpt| excerpt.buffer_id)
-            .collect::<HashSet<_>>();
-        let buffers = project.update(cx, |project, cx| {
-            buffer_ids
-                .iter()
-                .map(|id| project.open_buffer_by_id(*id, cx))
-                .collect::<Vec<_>>()
-        });
-
-        let pane = pane.downgrade();
-        Some(cx.spawn(|mut cx| async move {
-            let mut buffers = futures::future::try_join_all(buffers).await?;
-            let editor = pane.read_with(&cx, |pane, cx| {
-                let mut editors = pane.items_of_type::<Self>();
-                editors.find(|editor| {
-                    let ids_match = editor.remote_id(&client, cx) == Some(remote_id);
-                    let singleton_buffer_matches = state.singleton
-                        && buffers.first()
-                            == editor.read(cx).buffer.read(cx).as_singleton().as_ref();
-                    ids_match || singleton_buffer_matches
-                })
-            })?;
-
-            let editor = if let Some(editor) = editor {
-                editor
-            } else {
-                pane.update(&mut cx, |_, cx| {
-                    let multibuffer = cx.add_model(|cx| {
-                        let mut multibuffer;
-                        if state.singleton && buffers.len() == 1 {
-                            multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
-                        } else {
-                            multibuffer = MultiBuffer::new(replica_id);
-                            let mut excerpts = state.excerpts.into_iter().peekable();
-                            while let Some(excerpt) = excerpts.peek() {
-                                let buffer_id = excerpt.buffer_id;
-                                let buffer_excerpts = iter::from_fn(|| {
-                                    let excerpt = excerpts.peek()?;
-                                    (excerpt.buffer_id == buffer_id)
-                                        .then(|| excerpts.next().unwrap())
-                                });
-                                let buffer =
-                                    buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
-                                if let Some(buffer) = buffer {
-                                    multibuffer.push_excerpts(
-                                        buffer.clone(),
-                                        buffer_excerpts.filter_map(deserialize_excerpt_range),
-                                        cx,
-                                    );
-                                }
-                            }
-                        };
-
-                        if let Some(title) = &state.title {
-                            multibuffer = multibuffer.with_title(title.clone())
-                        }
-
-                        multibuffer
-                    });
-
-                    cx.add_view(|cx| {
-                        let mut editor =
-                            Editor::for_multibuffer(multibuffer, Some(project.clone()), cx);
-                        editor.remote_id = Some(remote_id);
-                        editor
-                    })
-                })?
-            };
-
-            update_editor_from_message(
-                editor.downgrade(),
-                project,
-                proto::update_view::Editor {
-                    selections: state.selections,
-                    pending_selection: state.pending_selection,
-                    scroll_top_anchor: state.scroll_top_anchor,
-                    scroll_x: state.scroll_x,
-                    scroll_y: state.scroll_y,
-                    ..Default::default()
-                },
-                &mut cx,
-            )
-            .await?;
-
-            Ok(editor)
-        }))
+        todo!()
     }
+    //     let project = workspace.read(cx).project().to_owned();
+    //     let Some(proto::view::Variant::Editor(_)) = state else {
+    //         return None;
+    //     };
+    //     let Some(proto::view::Variant::Editor(state)) = state.take() else {
+    //         unreachable!()
+    //     };
+
+    //     let client = project.read(cx).client();
+    //     let replica_id = project.read(cx).replica_id();
+    //     let buffer_ids = state
+    //         .excerpts
+    //         .iter()
+    //         .map(|excerpt| excerpt.buffer_id)
+    //         .collect::<HashSet<_>>();
+    //     let buffers = project.update(cx, |project, cx| {
+    //         buffer_ids
+    //             .iter()
+    //             .map(|id| project.open_buffer_by_id(*id, cx))
+    //             .collect::<Vec<_>>()
+    //     });
+
+    //     let pane = pane.downgrade();
+    //     Some(cx.spawn(|mut cx| async move {
+    //         let mut buffers = futures::future::try_join_all(buffers).await?;
+    //         let editor = pane.read_with(&cx, |pane, cx| {
+    //             let mut editors = pane.items_of_type::<Self>();
+    //             editors.find(|editor| {
+    //                 let ids_match = editor.remote_id(&client, cx) == Some(remote_id);
+    //                 let singleton_buffer_matches = state.singleton
+    //                     && buffers.first()
+    //                         == editor.read(cx).buffer.read(cx).as_singleton().as_ref();
+    //                 ids_match || singleton_buffer_matches
+    //             })
+    //         })?;
+
+    //         let editor = if let Some(editor) = editor {
+    //             editor
+    //         } else {
+    //             pane.update(&mut cx, |_, cx| {
+    //                 let multibuffer = cx.add_model(|cx| {
+    //                     let mut multibuffer;
+    //                     if state.singleton && buffers.len() == 1 {
+    //                         multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
+    //                     } else {
+    //                         multibuffer = MultiBuffer::new(replica_id);
+    //                         let mut excerpts = state.excerpts.into_iter().peekable();
+    //                         while let Some(excerpt) = excerpts.peek() {
+    //                             let buffer_id = excerpt.buffer_id;
+    //                             let buffer_excerpts = iter::from_fn(|| {
+    //                                 let excerpt = excerpts.peek()?;
+    //                                 (excerpt.buffer_id == buffer_id)
+    //                                     .then(|| excerpts.next().unwrap())
+    //                             });
+    //                             let buffer =
+    //                                 buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
+    //                             if let Some(buffer) = buffer {
+    //                                 multibuffer.push_excerpts(
+    //                                     buffer.clone(),
+    //                                     buffer_excerpts.filter_map(deserialize_excerpt_range),
+    //                                     cx,
+    //                                 );
+    //                             }
+    //                         }
+    //                     };
+
+    //                     if let Some(title) = &state.title {
+    //                         multibuffer = multibuffer.with_title(title.clone())
+    //                     }
+
+    //                     multibuffer
+    //                 });
+
+    //                 cx.add_view(|cx| {
+    //                     let mut editor =
+    //                         Editor::for_multibuffer(multibuffer, Some(project.clone()), cx);
+    //                     editor.remote_id = Some(remote_id);
+    //                     editor
+    //                 })
+    //             })?
+    //         };
+
+    //         update_editor_from_message(
+    //             editor.downgrade(),
+    //             project,
+    //             proto::update_view::Editor {
+    //                 selections: state.selections,
+    //                 pending_selection: state.pending_selection,
+    //                 scroll_top_anchor: state.scroll_top_anchor,
+    //                 scroll_x: state.scroll_x,
+    //                 scroll_y: state.scroll_y,
+    //                 ..Default::default()
+    //             },
+    //             &mut cx,
+    //         )
+    //         .await?;
+
+    //         Ok(editor)
+    //     }))
+    // }
 
     fn set_leader_peer_id(&mut self, leader_peer_id: Option<PeerId>, cx: &mut ViewContext<Self>) {
         self.leader_peer_id = leader_peer_id;
@@ -197,8 +199,8 @@ impl FollowableItem for Editor {
             title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
             excerpts,
             scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor)),
-            scroll_x: scroll_anchor.offset.x(),
-            scroll_y: scroll_anchor.offset.y(),
+            scroll_x: scroll_anchor.offset.x,
+            scroll_y: scroll_anchor.offset.y,
             selections: self
                 .selections
                 .disjoint_anchors()
@@ -254,8 +256,8 @@ impl FollowableItem for Editor {
                 Event::ScrollPositionChanged { .. } => {
                     let scroll_anchor = self.scroll_manager.anchor();
                     update.scroll_top_anchor = Some(serialize_anchor(&scroll_anchor.anchor));
-                    update.scroll_x = scroll_anchor.offset.x();
-                    update.scroll_y = scroll_anchor.offset.y();
+                    update.scroll_x = scroll_anchor.offset.x;
+                    update.scroll_y = scroll_anchor.offset.y;
                     true
                 }
                 Event::SelectionsChanged { .. } => {
@@ -561,8 +563,8 @@ impl Item for Editor {
 
     fn tab_description<'a>(&'a self, detail: usize, cx: &'a AppContext) -> Option<SharedString> {
         match path_for_buffer(&self.buffer, detail, true, cx)? {
-            Cow::Borrowed(path) => Some(path.to_string_lossy()),
-            Cow::Owned(path) => Some(path.to_string_lossy().to_string().into()),
+            Cow::Borrowed(path) => Some(path.to_string_lossy),
+            Cow::Owned(path) => Some(path.to_string_lossy.to_string().into()),
         }
     }
 
@@ -598,7 +600,11 @@ impl Item for Editor {
         self.buffer.read(cx).is_singleton()
     }
 
-    fn clone_on_split(&self, _workspace_id: WorkspaceId, cx: &mut ViewContext<Self>) -> Option<Self>
+    fn clone_on_split(
+        &self,
+        _workspace_id: WorkspaceId,
+        cx: &mut ViewContext<Self>,
+    ) -> Option<View<Self>>
     where
         Self: Sized,
     {
@@ -611,7 +617,8 @@ impl Item for Editor {
 
     fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
         let selection = self.selections.newest_anchor();
-        self.push_to_nav_history(selection.head(), None, cx);
+        todo!()
+        // self.push_to_nav_history(selection.head(), None, cx);
     }
 
     fn workspace_deactivated(&mut self, cx: &mut ViewContext<Self>) {
@@ -652,7 +659,7 @@ impl Item for Editor {
                 // we simulate saving by calling `Buffer::did_save`, so that language servers or
                 // other downstream listeners of save events get notified.
                 let (dirty_buffers, clean_buffers) = buffers.into_iter().partition(|buffer| {
-                    buffer.read_with(&cx, |buffer, _| buffer.is_dirty() || buffer.has_conflict())
+                    buffer.read_with(&cx, |buffer, _| buffer.is_dirty || buffer.has_conflict())
                 });
 
                 project
@@ -686,9 +693,7 @@ impl Item for Editor {
             .as_singleton()
             .expect("cannot call save_as on an excerpt list");
 
-        let file_extension = abs_path
-            .extension()
-            .map(|a| a.to_string_lossy().to_string());
+        let file_extension = abs_path.extension().map(|a| a.to_string_lossy.to_string());
         self.report_editor_event("save", file_extension, cx);
 
         project.update(cx, |project, cx| {

crates/editor2/src/movement.rs 🔗

@@ -2,7 +2,7 @@ use super::{Bias, DisplayPoint, DisplaySnapshot, SelectionGoal, ToDisplayPoint};
 use crate::{char_kind, CharKind, EditorStyle, ToOffset, ToPoint};
 use gpui::TextSystem;
 use language::Point;
-use std::{ops::Range, sync::Arc};
+use std::ops::Range;
 
 #[derive(Debug, PartialEq)]
 pub enum FindRange {
@@ -444,483 +444,483 @@ pub fn split_display_range_by_lines(
     result
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::{
-        display_map::Inlay,
-        test::{editor_test_context::EditorTestContext, marked_display_snapshot},
-        Buffer, DisplayMap, ExcerptRange, InlayId, MultiBuffer,
-    };
-    use project::Project;
-    use settings::SettingsStore;
-    use util::post_inc;
-
-    #[gpui::test]
-    fn test_previous_word_start(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                previous_word_start(&snapshot, display_points[1]),
-                display_points[0]
-            );
-        }
-
-        assert("\nˇ   ˇlorem", cx);
-        assert("ˇ\nˇ   lorem", cx);
-        assert("    ˇloremˇ", cx);
-        assert("ˇ    ˇlorem", cx);
-        assert("    ˇlorˇem", cx);
-        assert("\nlorem\nˇ   ˇipsum", cx);
-        assert("\n\nˇ\nˇ", cx);
-        assert("    ˇlorem  ˇipsum", cx);
-        assert("loremˇ-ˇipsum", cx);
-        assert("loremˇ-#$@ˇipsum", cx);
-        assert("ˇlorem_ˇipsum", cx);
-        assert(" ˇdefγˇ", cx);
-        assert(" ˇbcΔˇ", cx);
-        assert(" abˇ——ˇcd", cx);
-    }
-
-    #[gpui::test]
-    fn test_previous_subword_start(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                previous_subword_start(&snapshot, display_points[1]),
-                display_points[0]
-            );
-        }
-
-        // Subword boundaries are respected
-        assert("lorem_ˇipˇsum", cx);
-        assert("lorem_ˇipsumˇ", cx);
-        assert("ˇlorem_ˇipsum", cx);
-        assert("lorem_ˇipsum_ˇdolor", cx);
-        assert("loremˇIpˇsum", cx);
-        assert("loremˇIpsumˇ", cx);
-
-        // Word boundaries are still respected
-        assert("\nˇ   ˇlorem", cx);
-        assert("    ˇloremˇ", cx);
-        assert("    ˇlorˇem", cx);
-        assert("\nlorem\nˇ   ˇipsum", cx);
-        assert("\n\nˇ\nˇ", cx);
-        assert("    ˇlorem  ˇipsum", cx);
-        assert("loremˇ-ˇipsum", cx);
-        assert("loremˇ-#$@ˇipsum", cx);
-        assert(" ˇdefγˇ", cx);
-        assert(" bcˇΔˇ", cx);
-        assert(" ˇbcδˇ", cx);
-        assert(" abˇ——ˇcd", cx);
-    }
-
-    #[gpui::test]
-    fn test_find_preceding_boundary(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(
-            marked_text: &str,
-            cx: &mut gpui::AppContext,
-            is_boundary: impl FnMut(char, char) -> bool,
-        ) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                find_preceding_boundary(
-                    &snapshot,
-                    display_points[1],
-                    FindRange::MultiLine,
-                    is_boundary
-                ),
-                display_points[0]
-            );
-        }
-
-        assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
-            left == 'c' && right == 'd'
-        });
-        assert("abcdef\nˇgh\nijˇk", cx, |left, right| {
-            left == '\n' && right == 'g'
-        });
-        let mut line_count = 0;
-        assert("abcdef\nˇgh\nijˇk", cx, |left, _| {
-            if left == '\n' {
-                line_count += 1;
-                line_count == 2
-            } else {
-                false
-            }
-        });
-    }
-
-    #[gpui::test]
-    fn test_find_preceding_boundary_with_inlays(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        let input_text = "abcdefghijklmnopqrstuvwxys";
-        let family_id = cx
-            .font_cache()
-            .load_family(&["Helvetica"], &Default::default())
-            .unwrap();
-        let font_id = cx
-            .font_cache()
-            .select_font(family_id, &Default::default())
-            .unwrap();
-        let font_size = 14.0;
-        let buffer = MultiBuffer::build_simple(input_text, cx);
-        let buffer_snapshot = buffer.read(cx).snapshot(cx);
-        let display_map =
-            cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, None, 1, 1, cx));
-
-        // add all kinds of inlays between two word boundaries: we should be able to cross them all, when looking for another boundary
-        let mut id = 0;
-        let inlays = (0..buffer_snapshot.len())
-            .map(|offset| {
-                [
-                    Inlay {
-                        id: InlayId::Suggestion(post_inc(&mut id)),
-                        position: buffer_snapshot.anchor_at(offset, Bias::Left),
-                        text: format!("test").into(),
-                    },
-                    Inlay {
-                        id: InlayId::Suggestion(post_inc(&mut id)),
-                        position: buffer_snapshot.anchor_at(offset, Bias::Right),
-                        text: format!("test").into(),
-                    },
-                    Inlay {
-                        id: InlayId::Hint(post_inc(&mut id)),
-                        position: buffer_snapshot.anchor_at(offset, Bias::Left),
-                        text: format!("test").into(),
-                    },
-                    Inlay {
-                        id: InlayId::Hint(post_inc(&mut id)),
-                        position: buffer_snapshot.anchor_at(offset, Bias::Right),
-                        text: format!("test").into(),
-                    },
-                ]
-            })
-            .flatten()
-            .collect();
-        let snapshot = display_map.update(cx, |map, cx| {
-            map.splice_inlays(Vec::new(), inlays, cx);
-            map.snapshot(cx)
-        });
-
-        assert_eq!(
-            find_preceding_boundary(
-                &snapshot,
-                buffer_snapshot.len().to_display_point(&snapshot),
-                FindRange::MultiLine,
-                |left, _| left == 'e',
-            ),
-            snapshot
-                .buffer_snapshot
-                .offset_to_point(5)
-                .to_display_point(&snapshot),
-            "Should not stop at inlays when looking for boundaries"
-        );
-    }
-
-    #[gpui::test]
-    fn test_next_word_end(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                next_word_end(&snapshot, display_points[0]),
-                display_points[1]
-            );
-        }
-
-        assert("\nˇ   loremˇ", cx);
-        assert("    ˇloremˇ", cx);
-        assert("    lorˇemˇ", cx);
-        assert("    loremˇ    ˇ\nipsum\n", cx);
-        assert("\nˇ\nˇ\n\n", cx);
-        assert("loremˇ    ipsumˇ   ", cx);
-        assert("loremˇ-ˇipsum", cx);
-        assert("loremˇ#$@-ˇipsum", cx);
-        assert("loremˇ_ipsumˇ", cx);
-        assert(" ˇbcΔˇ", cx);
-        assert(" abˇ——ˇcd", cx);
-    }
-
-    #[gpui::test]
-    fn test_next_subword_end(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                next_subword_end(&snapshot, display_points[0]),
-                display_points[1]
-            );
-        }
-
-        // Subword boundaries are respected
-        assert("loˇremˇ_ipsum", cx);
-        assert("ˇloremˇ_ipsum", cx);
-        assert("loremˇ_ipsumˇ", cx);
-        assert("loremˇ_ipsumˇ_dolor", cx);
-        assert("loˇremˇIpsum", cx);
-        assert("loremˇIpsumˇDolor", cx);
-
-        // Word boundaries are still respected
-        assert("\nˇ   loremˇ", cx);
-        assert("    ˇloremˇ", cx);
-        assert("    lorˇemˇ", cx);
-        assert("    loremˇ    ˇ\nipsum\n", cx);
-        assert("\nˇ\nˇ\n\n", cx);
-        assert("loremˇ    ipsumˇ   ", cx);
-        assert("loremˇ-ˇipsum", cx);
-        assert("loremˇ#$@-ˇipsum", cx);
-        assert("loremˇ_ipsumˇ", cx);
-        assert(" ˇbcˇΔ", cx);
-        assert(" abˇ——ˇcd", cx);
-    }
-
-    #[gpui::test]
-    fn test_find_boundary(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(
-            marked_text: &str,
-            cx: &mut gpui::AppContext,
-            is_boundary: impl FnMut(char, char) -> bool,
-        ) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                find_boundary(
-                    &snapshot,
-                    display_points[0],
-                    FindRange::MultiLine,
-                    is_boundary
-                ),
-                display_points[1]
-            );
-        }
-
-        assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
-            left == 'j' && right == 'k'
-        });
-        assert("abˇcdef\ngh\nˇijk", cx, |left, right| {
-            left == '\n' && right == 'i'
-        });
-        let mut line_count = 0;
-        assert("abcˇdef\ngh\nˇijk", cx, |left, _| {
-            if left == '\n' {
-                line_count += 1;
-                line_count == 2
-            } else {
-                false
-            }
-        });
-    }
-
-    #[gpui::test]
-    fn test_surrounding_word(cx: &mut gpui::AppContext) {
-        init_test(cx);
-
-        fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
-            let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
-            assert_eq!(
-                surrounding_word(&snapshot, display_points[1]),
-                display_points[0]..display_points[2],
-                "{}",
-                marked_text.to_string()
-            );
-        }
-
-        assert("ˇˇloremˇ  ipsum", cx);
-        assert("ˇloˇremˇ  ipsum", cx);
-        assert("ˇloremˇˇ  ipsum", cx);
-        assert("loremˇ ˇ  ˇipsum", cx);
-        assert("lorem\nˇˇˇ\nipsum", cx);
-        assert("lorem\nˇˇipsumˇ", cx);
-        assert("loremˇ,ˇˇ ipsum", cx);
-        assert("ˇloremˇˇ, ipsum", cx);
-    }
-
-    #[gpui::test]
-    async fn test_move_up_and_down_with_excerpts(cx: &mut gpui::TestAppContext) {
-        cx.update(|cx| {
-            init_test(cx);
-        });
-
-        let mut cx = EditorTestContext::new(cx).await;
-        let editor = cx.editor.clone();
-        let window = cx.window.clone();
-        cx.update_window(window, |cx| {
-            let text_layout_details =
-                editor.read_with(cx, |editor, cx| editor.text_layout_details(cx));
-
-            let family_id = cx
-                .font_cache()
-                .load_family(&["Helvetica"], &Default::default())
-                .unwrap();
-            let font_id = cx
-                .font_cache()
-                .select_font(family_id, &Default::default())
-                .unwrap();
-
-            let buffer =
-                cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, "abc\ndefg\nhijkl\nmn"));
-            let multibuffer = cx.add_model(|cx| {
-                let mut multibuffer = MultiBuffer::new(0);
-                multibuffer.push_excerpts(
-                    buffer.clone(),
-                    [
-                        ExcerptRange {
-                            context: Point::new(0, 0)..Point::new(1, 4),
-                            primary: None,
-                        },
-                        ExcerptRange {
-                            context: Point::new(2, 0)..Point::new(3, 2),
-                            primary: None,
-                        },
-                    ],
-                    cx,
-                );
-                multibuffer
-            });
-            let display_map =
-                cx.add_model(|cx| DisplayMap::new(multibuffer, font_id, 14.0, None, 2, 2, cx));
-            let snapshot = display_map.update(cx, |map, cx| map.snapshot(cx));
-
-            assert_eq!(snapshot.text(), "\n\nabc\ndefg\n\n\nhijkl\nmn");
-
-            let col_2_x = snapshot.x_for_point(DisplayPoint::new(2, 2), &text_layout_details);
-
-            // Can't move up into the first excerpt's header
-            assert_eq!(
-                up(
-                    &snapshot,
-                    DisplayPoint::new(2, 2),
-                    SelectionGoal::HorizontalPosition(col_2_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(2, 0),
-                    SelectionGoal::HorizontalPosition(0.0)
-                ),
-            );
-            assert_eq!(
-                up(
-                    &snapshot,
-                    DisplayPoint::new(2, 0),
-                    SelectionGoal::None,
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(2, 0),
-                    SelectionGoal::HorizontalPosition(0.0)
-                ),
-            );
-
-            let col_4_x = snapshot.x_for_point(DisplayPoint::new(3, 4), &text_layout_details);
-
-            // Move up and down within first excerpt
-            assert_eq!(
-                up(
-                    &snapshot,
-                    DisplayPoint::new(3, 4),
-                    SelectionGoal::HorizontalPosition(col_4_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(2, 3),
-                    SelectionGoal::HorizontalPosition(col_4_x)
-                ),
-            );
-            assert_eq!(
-                down(
-                    &snapshot,
-                    DisplayPoint::new(2, 3),
-                    SelectionGoal::HorizontalPosition(col_4_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(3, 4),
-                    SelectionGoal::HorizontalPosition(col_4_x)
-                ),
-            );
-
-            let col_5_x = snapshot.x_for_point(DisplayPoint::new(6, 5), &text_layout_details);
-
-            // Move up and down across second excerpt's header
-            assert_eq!(
-                up(
-                    &snapshot,
-                    DisplayPoint::new(6, 5),
-                    SelectionGoal::HorizontalPosition(col_5_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(3, 4),
-                    SelectionGoal::HorizontalPosition(col_5_x)
-                ),
-            );
-            assert_eq!(
-                down(
-                    &snapshot,
-                    DisplayPoint::new(3, 4),
-                    SelectionGoal::HorizontalPosition(col_5_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(6, 5),
-                    SelectionGoal::HorizontalPosition(col_5_x)
-                ),
-            );
-
-            let max_point_x = snapshot.x_for_point(DisplayPoint::new(7, 2), &text_layout_details);
-
-            // Can't move down off the end
-            assert_eq!(
-                down(
-                    &snapshot,
-                    DisplayPoint::new(7, 0),
-                    SelectionGoal::HorizontalPosition(0.0),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(7, 2),
-                    SelectionGoal::HorizontalPosition(max_point_x)
-                ),
-            );
-            assert_eq!(
-                down(
-                    &snapshot,
-                    DisplayPoint::new(7, 2),
-                    SelectionGoal::HorizontalPosition(max_point_x),
-                    false,
-                    &text_layout_details
-                ),
-                (
-                    DisplayPoint::new(7, 2),
-                    SelectionGoal::HorizontalPosition(max_point_x)
-                ),
-            );
-        });
-    }
-
-    fn init_test(cx: &mut gpui::AppContext) {
-        cx.set_global(SettingsStore::test(cx));
-        theme::init(cx);
-        language::init(cx);
-        crate::init(cx);
-        Project::init_settings(cx);
-    }
-}
+// #[cfg(test)]
+// mod tests {
+//     use super::*;
+//     use crate::{
+//         display_map::Inlay,
+//         test::{},
+//         Buffer, DisplayMap, ExcerptRange, InlayId, MultiBuffer,
+//     };
+//     use project::Project;
+//     use settings::SettingsStore;
+//     use util::post_inc;
+
+//     #[gpui::test]
+//     fn test_previous_word_start(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 previous_word_start(&snapshot, display_points[1]),
+//                 display_points[0]
+//             );
+//         }
+
+//         assert("\nˇ   ˇlorem", cx);
+//         assert("ˇ\nˇ   lorem", cx);
+//         assert("    ˇloremˇ", cx);
+//         assert("ˇ    ˇlorem", cx);
+//         assert("    ˇlorˇem", cx);
+//         assert("\nlorem\nˇ   ˇipsum", cx);
+//         assert("\n\nˇ\nˇ", cx);
+//         assert("    ˇlorem  ˇipsum", cx);
+//         assert("loremˇ-ˇipsum", cx);
+//         assert("loremˇ-#$@ˇipsum", cx);
+//         assert("ˇlorem_ˇipsum", cx);
+//         assert(" ˇdefγˇ", cx);
+//         assert(" ˇbcΔˇ", cx);
+//         assert(" abˇ——ˇcd", cx);
+//     }
+
+//     #[gpui::test]
+//     fn test_previous_subword_start(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 previous_subword_start(&snapshot, display_points[1]),
+//                 display_points[0]
+//             );
+//         }
+
+//         // Subword boundaries are respected
+//         assert("lorem_ˇipˇsum", cx);
+//         assert("lorem_ˇipsumˇ", cx);
+//         assert("ˇlorem_ˇipsum", cx);
+//         assert("lorem_ˇipsum_ˇdolor", cx);
+//         assert("loremˇIpˇsum", cx);
+//         assert("loremˇIpsumˇ", cx);
+
+//         // Word boundaries are still respected
+//         assert("\nˇ   ˇlorem", cx);
+//         assert("    ˇloremˇ", cx);
+//         assert("    ˇlorˇem", cx);
+//         assert("\nlorem\nˇ   ˇipsum", cx);
+//         assert("\n\nˇ\nˇ", cx);
+//         assert("    ˇlorem  ˇipsum", cx);
+//         assert("loremˇ-ˇipsum", cx);
+//         assert("loremˇ-#$@ˇipsum", cx);
+//         assert(" ˇdefγˇ", cx);
+//         assert(" bcˇΔˇ", cx);
+//         assert(" ˇbcδˇ", cx);
+//         assert(" abˇ——ˇcd", cx);
+//     }
+
+//     #[gpui::test]
+//     fn test_find_preceding_boundary(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(
+//             marked_text: &str,
+//             cx: &mut gpui::AppContext,
+//             is_boundary: impl FnMut(char, char) -> bool,
+//         ) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 find_preceding_boundary(
+//                     &snapshot,
+//                     display_points[1],
+//                     FindRange::MultiLine,
+//                     is_boundary
+//                 ),
+//                 display_points[0]
+//             );
+//         }
+
+//         assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
+//             left == 'c' && right == 'd'
+//         });
+//         assert("abcdef\nˇgh\nijˇk", cx, |left, right| {
+//             left == '\n' && right == 'g'
+//         });
+//         let mut line_count = 0;
+//         assert("abcdef\nˇgh\nijˇk", cx, |left, _| {
+//             if left == '\n' {
+//                 line_count += 1;
+//                 line_count == 2
+//             } else {
+//                 false
+//             }
+//         });
+//     }
+
+//     #[gpui::test]
+//     fn test_find_preceding_boundary_with_inlays(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         let input_text = "abcdefghijklmnopqrstuvwxys";
+//         let family_id = cx
+//             .font_cache()
+//             .load_family(&["Helvetica"], &Default::default())
+//             .unwrap();
+//         let font_id = cx
+//             .font_cache()
+//             .select_font(family_id, &Default::default())
+//             .unwrap();
+//         let font_size = 14.0;
+//         let buffer = MultiBuffer::build_simple(input_text, cx);
+//         let buffer_snapshot = buffer.read(cx).snapshot(cx);
+//         let display_map =
+//             cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, None, 1, 1, cx));
+
+//         // add all kinds of inlays between two word boundaries: we should be able to cross them all, when looking for another boundary
+//         let mut id = 0;
+//         let inlays = (0..buffer_snapshot.len())
+//             .map(|offset| {
+//                 [
+//                     Inlay {
+//                         id: InlayId::Suggestion(post_inc(&mut id)),
+//                         position: buffer_snapshot.anchor_at(offset, Bias::Left),
+//                         text: format!("test").into(),
+//                     },
+//                     Inlay {
+//                         id: InlayId::Suggestion(post_inc(&mut id)),
+//                         position: buffer_snapshot.anchor_at(offset, Bias::Right),
+//                         text: format!("test").into(),
+//                     },
+//                     Inlay {
+//                         id: InlayId::Hint(post_inc(&mut id)),
+//                         position: buffer_snapshot.anchor_at(offset, Bias::Left),
+//                         text: format!("test").into(),
+//                     },
+//                     Inlay {
+//                         id: InlayId::Hint(post_inc(&mut id)),
+//                         position: buffer_snapshot.anchor_at(offset, Bias::Right),
+//                         text: format!("test").into(),
+//                     },
+//                 ]
+//             })
+//             .flatten()
+//             .collect();
+//         let snapshot = display_map.update(cx, |map, cx| {
+//             map.splice_inlays(Vec::new(), inlays, cx);
+//             map.snapshot(cx)
+//         });
+
+//         assert_eq!(
+//             find_preceding_boundary(
+//                 &snapshot,
+//                 buffer_snapshot.len().to_display_point(&snapshot),
+//                 FindRange::MultiLine,
+//                 |left, _| left == 'e',
+//             ),
+//             snapshot
+//                 .buffer_snapshot
+//                 .offset_to_point(5)
+//                 .to_display_point(&snapshot),
+//             "Should not stop at inlays when looking for boundaries"
+//         );
+//     }
+
+//     #[gpui::test]
+//     fn test_next_word_end(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 next_word_end(&snapshot, display_points[0]),
+//                 display_points[1]
+//             );
+//         }
+
+//         assert("\nˇ   loremˇ", cx);
+//         assert("    ˇloremˇ", cx);
+//         assert("    lorˇemˇ", cx);
+//         assert("    loremˇ    ˇ\nipsum\n", cx);
+//         assert("\nˇ\nˇ\n\n", cx);
+//         assert("loremˇ    ipsumˇ   ", cx);
+//         assert("loremˇ-ˇipsum", cx);
+//         assert("loremˇ#$@-ˇipsum", cx);
+//         assert("loremˇ_ipsumˇ", cx);
+//         assert(" ˇbcΔˇ", cx);
+//         assert(" abˇ——ˇcd", cx);
+//     }
+
+//     #[gpui::test]
+//     fn test_next_subword_end(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 next_subword_end(&snapshot, display_points[0]),
+//                 display_points[1]
+//             );
+//         }
+
+//         // Subword boundaries are respected
+//         assert("loˇremˇ_ipsum", cx);
+//         assert("ˇloremˇ_ipsum", cx);
+//         assert("loremˇ_ipsumˇ", cx);
+//         assert("loremˇ_ipsumˇ_dolor", cx);
+//         assert("loˇremˇIpsum", cx);
+//         assert("loremˇIpsumˇDolor", cx);
+
+//         // Word boundaries are still respected
+//         assert("\nˇ   loremˇ", cx);
+//         assert("    ˇloremˇ", cx);
+//         assert("    lorˇemˇ", cx);
+//         assert("    loremˇ    ˇ\nipsum\n", cx);
+//         assert("\nˇ\nˇ\n\n", cx);
+//         assert("loremˇ    ipsumˇ   ", cx);
+//         assert("loremˇ-ˇipsum", cx);
+//         assert("loremˇ#$@-ˇipsum", cx);
+//         assert("loremˇ_ipsumˇ", cx);
+//         assert(" ˇbcˇΔ", cx);
+//         assert(" abˇ——ˇcd", cx);
+//     }
+
+//     #[gpui::test]
+//     fn test_find_boundary(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(
+//             marked_text: &str,
+//             cx: &mut gpui::AppContext,
+//             is_boundary: impl FnMut(char, char) -> bool,
+//         ) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 find_boundary(
+//                     &snapshot,
+//                     display_points[0],
+//                     FindRange::MultiLine,
+//                     is_boundary
+//                 ),
+//                 display_points[1]
+//             );
+//         }
+
+//         assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
+//             left == 'j' && right == 'k'
+//         });
+//         assert("abˇcdef\ngh\nˇijk", cx, |left, right| {
+//             left == '\n' && right == 'i'
+//         });
+//         let mut line_count = 0;
+//         assert("abcˇdef\ngh\nˇijk", cx, |left, _| {
+//             if left == '\n' {
+//                 line_count += 1;
+//                 line_count == 2
+//             } else {
+//                 false
+//             }
+//         });
+//     }
+
+//     #[gpui::test]
+//     fn test_surrounding_word(cx: &mut gpui::AppContext) {
+//         init_test(cx);
+
+//         fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
+//             let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
+//             assert_eq!(
+//                 surrounding_word(&snapshot, display_points[1]),
+//                 display_points[0]..display_points[2],
+//                 "{}",
+//                 marked_text.to_string()
+//             );
+//         }
+
+//         assert("ˇˇloremˇ  ipsum", cx);
+//         assert("ˇloˇremˇ  ipsum", cx);
+//         assert("ˇloremˇˇ  ipsum", cx);
+//         assert("loremˇ ˇ  ˇipsum", cx);
+//         assert("lorem\nˇˇˇ\nipsum", cx);
+//         assert("lorem\nˇˇipsumˇ", cx);
+//         assert("loremˇ,ˇˇ ipsum", cx);
+//         assert("ˇloremˇˇ, ipsum", cx);
+//     }
+
+//     #[gpui::test]
+//     async fn test_move_up_and_down_with_excerpts(cx: &mut gpui::TestAppContext) {
+//         cx.update(|cx| {
+//             init_test(cx);
+//         });
+
+//         let mut cx = EditorTestContext::new(cx).await;
+//         let editor = cx.editor.clone();
+//         let window = cx.window.clone();
+//         cx.update_window(window, |cx| {
+//             let text_layout_details =
+//                 editor.read_with(cx, |editor, cx| editor.text_layout_details(cx));
+
+//             let family_id = cx
+//                 .font_cache()
+//                 .load_family(&["Helvetica"], &Default::default())
+//                 .unwrap();
+//             let font_id = cx
+//                 .font_cache()
+//                 .select_font(family_id, &Default::default())
+//                 .unwrap();
+
+//             let buffer =
+//                 cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, "abc\ndefg\nhijkl\nmn"));
+//             let multibuffer = cx.add_model(|cx| {
+//                 let mut multibuffer = MultiBuffer::new(0);
+//                 multibuffer.push_excerpts(
+//                     buffer.clone(),
+//                     [
+//                         ExcerptRange {
+//                             context: Point::new(0, 0)..Point::new(1, 4),
+//                             primary: None,
+//                         },
+//                         ExcerptRange {
+//                             context: Point::new(2, 0)..Point::new(3, 2),
+//                             primary: None,
+//                         },
+//                     ],
+//                     cx,
+//                 );
+//                 multibuffer
+//             });
+//             let display_map =
+//                 cx.add_model(|cx| DisplayMap::new(multibuffer, font_id, 14.0, None, 2, 2, cx));
+//             let snapshot = display_map.update(cx, |map, cx| map.snapshot(cx));
+
+//             assert_eq!(snapshot.text(), "\n\nabc\ndefg\n\n\nhijkl\nmn");
+
+//             let col_2_x = snapshot.x_for_point(DisplayPoint::new(2, 2), &text_layout_details);
+
+//             // Can't move up into the first excerpt's header
+//             assert_eq!(
+//                 up(
+//                     &snapshot,
+//                     DisplayPoint::new(2, 2),
+//                     SelectionGoal::HorizontalPosition(col_2_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(2, 0),
+//                     SelectionGoal::HorizontalPosition(0.0)
+//                 ),
+//             );
+//             assert_eq!(
+//                 up(
+//                     &snapshot,
+//                     DisplayPoint::new(2, 0),
+//                     SelectionGoal::None,
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(2, 0),
+//                     SelectionGoal::HorizontalPosition(0.0)
+//                 ),
+//             );
+
+//             let col_4_x = snapshot.x_for_point(DisplayPoint::new(3, 4), &text_layout_details);
+
+//             // Move up and down within first excerpt
+//             assert_eq!(
+//                 up(
+//                     &snapshot,
+//                     DisplayPoint::new(3, 4),
+//                     SelectionGoal::HorizontalPosition(col_4_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(2, 3),
+//                     SelectionGoal::HorizontalPosition(col_4_x)
+//                 ),
+//             );
+//             assert_eq!(
+//                 down(
+//                     &snapshot,
+//                     DisplayPoint::new(2, 3),
+//                     SelectionGoal::HorizontalPosition(col_4_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(3, 4),
+//                     SelectionGoal::HorizontalPosition(col_4_x)
+//                 ),
+//             );
+
+//             let col_5_x = snapshot.x_for_point(DisplayPoint::new(6, 5), &text_layout_details);
+
+//             // Move up and down across second excerpt's header
+//             assert_eq!(
+//                 up(
+//                     &snapshot,
+//                     DisplayPoint::new(6, 5),
+//                     SelectionGoal::HorizontalPosition(col_5_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(3, 4),
+//                     SelectionGoal::HorizontalPosition(col_5_x)
+//                 ),
+//             );
+//             assert_eq!(
+//                 down(
+//                     &snapshot,
+//                     DisplayPoint::new(3, 4),
+//                     SelectionGoal::HorizontalPosition(col_5_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(6, 5),
+//                     SelectionGoal::HorizontalPosition(col_5_x)
+//                 ),
+//             );
+
+//             let max_point_x = snapshot.x_for_point(DisplayPoint::new(7, 2), &text_layout_details);
+
+//             // Can't move down off the end
+//             assert_eq!(
+//                 down(
+//                     &snapshot,
+//                     DisplayPoint::new(7, 0),
+//                     SelectionGoal::HorizontalPosition(0.0),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(7, 2),
+//                     SelectionGoal::HorizontalPosition(max_point_x)
+//                 ),
+//             );
+//             assert_eq!(
+//                 down(
+//                     &snapshot,
+//                     DisplayPoint::new(7, 2),
+//                     SelectionGoal::HorizontalPosition(max_point_x),
+//                     false,
+//                     &text_layout_details
+//                 ),
+//                 (
+//                     DisplayPoint::new(7, 2),
+//                     SelectionGoal::HorizontalPosition(max_point_x)
+//                 ),
+//             );
+//         });
+//     }
+
+//     fn init_test(cx: &mut gpui::AppContext) {
+//         cx.set_global(SettingsStore::test(cx));
+//         theme::init(cx);
+//         language::init(cx);
+//         crate::init(cx);
+//         Project::init_settings(cx);
+//     }
+// }

crates/editor2/src/scroll.rs 🔗

@@ -39,7 +39,7 @@ pub struct ScrollAnchor {
 impl ScrollAnchor {
     fn new() -> Self {
         Self {
-            offset: Point::zero(),
+            offset: gpui::Point::zero(),
             anchor: Anchor::min(),
         }
     }
@@ -48,7 +48,7 @@ impl ScrollAnchor {
         let mut scroll_position = self.offset;
         if self.anchor != Anchor::min() {
             let scroll_top = self.anchor.to_display_point(snapshot).row() as f32;
-            scroll_position.set_y(scroll_top + scroll_position.y());
+            scroll_position.set_y(scroll_top + scroll_position.y);
         } else {
             scroll_position.set_y(0.);
         }
@@ -82,7 +82,7 @@ impl OngoingScroll {
 
     pub fn filter(&self, delta: &mut gpui::Point<Pixels>) -> Option<Axis> {
         const UNLOCK_PERCENT: f32 = 1.9;
-        const UNLOCK_LOWER_BOUND: f32 = 6.;
+        const UNLOCK_LOWER_BOUND: Pixels = px(6.);
         let mut axis = self.axis;
 
         let x = delta.x.abs();
@@ -116,10 +116,10 @@ impl OngoingScroll {
 
         match axis {
             Some(Axis::Vertical) => {
-                *delta = point(pk(0.), delta.y());
+                *delta = point(px(0.), delta.y);
             }
             Some(Axis::Horizontal) => {
-                *delta = point(delta.x(), px(0.));
+                *delta = point(delta.x, px(0.));
             }
             None => {}
         }
@@ -177,14 +177,14 @@ impl ScrollManager {
 
     fn set_scroll_position(
         &mut self,
-        scroll_position: gpui::Point<Pixels>,
+        scroll_position: gpui::Point<f32>,
         map: &DisplaySnapshot,
         local: bool,
         autoscroll: bool,
         workspace_id: Option<i64>,
         cx: &mut ViewContext<Editor>,
     ) {
-        let (new_anchor, top_row) = if scroll_position.y() <= 0. {
+        let (new_anchor, top_row) = if scroll_position.y <= 0. {
             (
                 ScrollAnchor {
                     anchor: Anchor::min(),
@@ -194,7 +194,7 @@ impl ScrollManager {
             )
         } else {
             let scroll_top_buffer_point =
-                DisplayPoint::new(scroll_position.y() as u32, 0).to_point(&map);
+                DisplayPoint::new(scroll_position.y as u32, 0).to_point(&map);
             let top_anchor = map
                 .buffer_snapshot
                 .anchor_at(scroll_top_buffer_point, Bias::Right);
@@ -203,8 +203,8 @@ impl ScrollManager {
                 ScrollAnchor {
                     anchor: top_anchor,
                     offset: point(
-                        scroll_position.x(),
-                        scroll_position.y() - top_anchor.to_display_point(&map).row() as f32,
+                        scroll_position.x,
+                        scroll_position.y - top_anchor.to_display_point(&map).row() as f32,
                     ),
                 },
                 scroll_top_buffer_point.row,
@@ -236,8 +236,8 @@ impl ScrollManager {
                         item_id,
                         workspace_id,
                         top_row,
-                        anchor.offset.x(),
-                        anchor.offset.y(),
+                        anchor.offset.x,
+                        anchor.offset.y,
                     )
                     .await
                     .log_err()
@@ -277,8 +277,8 @@ impl ScrollManager {
     }
 
     pub fn clamp_scroll_left(&mut self, max: f32) -> bool {
-        if max < self.anchor.offset.x() {
-            self.anchor.offset.set_x(max);
+        if max < self.anchor.offset.x {
+            self.anchor.offset.x = max;
             true
         } else {
             false

crates/editor2/src/scroll/autoscroll.rs 🔗

@@ -60,7 +60,7 @@ impl Editor {
         } else {
             display_map.max_point().row() as f32
         };
-        if scroll_position.y() > max_scroll_top {
+        if scroll_position.y > max_scroll_top {
             scroll_position.set_y(max_scroll_top);
             self.set_scroll_position(scroll_position, cx);
         }
@@ -136,7 +136,7 @@ impl Editor {
                 let margin = margin.min(self.scroll_manager.vertical_scroll_margin);
                 let target_top = (target_top - margin).max(0.0);
                 let target_bottom = target_bottom + margin;
-                let start_row = scroll_position.y();
+                let start_row = scroll_position.y;
                 let end_row = start_row + visible_lines;
 
                 let needs_scroll_up = target_top < start_row;
@@ -222,20 +222,15 @@ impl Editor {
             return false;
         }
 
-        let scroll_left = self.scroll_manager.anchor.offset.x() * max_glyph_width;
+        let scroll_left = self.scroll_manager.anchor.offset.x * max_glyph_width;
         let scroll_right = scroll_left + viewport_width;
 
         if target_left < scroll_left {
-            self.scroll_manager
-                .anchor
-                .offset
-                .set_x(target_left / max_glyph_width);
+            self.scroll_manager.anchor.offset.x = (target_left / max_glyph_width);
             true
         } else if target_right > scroll_right {
-            self.scroll_manager
-                .anchor
-                .offset
-                .set_x((target_right - viewport_width) / max_glyph_width);
+            self.scroll_manager.anchor.offset.x =
+                ((target_right - viewport_width) / max_glyph_width);
             true
         } else {
             false

crates/editor2/src/test/editor_lsp_test_context.rs 🔗

@@ -1,297 +1,297 @@
-use std::{
-    borrow::Cow,
-    ops::{Deref, DerefMut, Range},
-    sync::Arc,
-};
-
-use anyhow::Result;
-
-use crate::{Editor, ToPoint};
-use collections::HashSet;
-use futures::Future;
-use gpui::{json, View, ViewContext};
-use indoc::indoc;
-use language::{point_to_lsp, FakeLspAdapter, Language, LanguageConfig, LanguageQueries};
-use lsp::{notification, request};
-use multi_buffer::ToPointUtf16;
-use project::Project;
-use smol::stream::StreamExt;
-use workspace::{AppState, Workspace, WorkspaceHandle};
-
-use super::editor_test_context::EditorTestContext;
-
-pub struct EditorLspTestContext<'a> {
-    pub cx: EditorTestContext<'a>,
-    pub lsp: lsp::FakeLanguageServer,
-    pub workspace: ViewHandle<Workspace>,
-    pub buffer_lsp_url: lsp::Url,
-}
-
-impl<'a> EditorLspTestContext<'a> {
-    pub async fn new(
-        mut language: Language,
-        capabilities: lsp::ServerCapabilities,
-        cx: &'a mut gpui::TestAppContext,
-    ) -> EditorLspTestContext<'a> {
-        use json::json;
-
-        let app_state = cx.update(AppState::test);
-
-        cx.update(|cx| {
-            language::init(cx);
-            crate::init(cx);
-            workspace::init(app_state.clone(), cx);
-            Project::init_settings(cx);
-        });
-
-        let file_name = format!(
-            "file.{}",
-            language
-                .path_suffixes()
-                .first()
-                .expect("language must have a path suffix for EditorLspTestContext")
-        );
-
-        let mut fake_servers = language
-            .set_fake_lsp_adapter(Arc::new(FakeLspAdapter {
-                capabilities,
-                ..Default::default()
-            }))
-            .await;
-
-        let project = Project::test(app_state.fs.clone(), [], cx).await;
-        project.update(cx, |project, _| project.languages().add(Arc::new(language)));
-
-        app_state
-            .fs
-            .as_fake()
-            .insert_tree("/root", json!({ "dir": { file_name.clone(): "" }}))
-            .await;
-
-        let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
-        let workspace = window.root(cx);
-        project
-            .update(cx, |project, cx| {
-                project.find_or_create_local_worktree("/root", true, cx)
-            })
-            .await
-            .unwrap();
-        cx.read(|cx| workspace.read(cx).worktree_scans_complete(cx))
-            .await;
-
-        let file = cx.read(|cx| workspace.file_project_paths(cx)[0].clone());
-        let item = workspace
-            .update(cx, |workspace, cx| {
-                workspace.open_path(file, None, true, cx)
-            })
-            .await
-            .expect("Could not open test file");
-
-        let editor = cx.update(|cx| {
-            item.act_as::<Editor>(cx)
-                .expect("Opened test file wasn't an editor")
-        });
-        editor.update(cx, |_, cx| cx.focus_self());
-
-        let lsp = fake_servers.next().await.unwrap();
-
-        Self {
-            cx: EditorTestContext {
-                cx,
-                window: window.into(),
-                editor,
-            },
-            lsp,
-            workspace,
-            buffer_lsp_url: lsp::Url::from_file_path(format!("/root/dir/{file_name}")).unwrap(),
-        }
-    }
-
-    pub async fn new_rust(
-        capabilities: lsp::ServerCapabilities,
-        cx: &'a mut gpui::TestAppContext,
-    ) -> EditorLspTestContext<'a> {
-        let language = Language::new(
-            LanguageConfig {
-                name: "Rust".into(),
-                path_suffixes: vec!["rs".to_string()],
-                ..Default::default()
-            },
-            Some(tree_sitter_rust::language()),
-        )
-        .with_queries(LanguageQueries {
-            indents: Some(Cow::from(indoc! {r#"
-                [
-                    ((where_clause) _ @end)
-                    (field_expression)
-                    (call_expression)
-                    (assignment_expression)
-                    (let_declaration)
-                    (let_chain)
-                    (await_expression)
-                ] @indent
-
-                (_ "[" "]" @end) @indent
-                (_ "<" ">" @end) @indent
-                (_ "{" "}" @end) @indent
-                (_ "(" ")" @end) @indent"#})),
-            brackets: Some(Cow::from(indoc! {r#"
-                ("(" @open ")" @close)
-                ("[" @open "]" @close)
-                ("{" @open "}" @close)
-                ("<" @open ">" @close)
-                ("\"" @open "\"" @close)
-                (closure_parameters "|" @open "|" @close)"#})),
-            ..Default::default()
-        })
-        .expect("Could not parse queries");
-
-        Self::new(language, capabilities, cx).await
-    }
-
-    pub async fn new_typescript(
-        capabilities: lsp::ServerCapabilities,
-        cx: &'a mut gpui::TestAppContext,
-    ) -> EditorLspTestContext<'a> {
-        let mut word_characters: HashSet<char> = Default::default();
-        word_characters.insert('$');
-        word_characters.insert('#');
-        let language = Language::new(
-            LanguageConfig {
-                name: "Typescript".into(),
-                path_suffixes: vec!["ts".to_string()],
-                brackets: language::BracketPairConfig {
-                    pairs: vec![language::BracketPair {
-                        start: "{".to_string(),
-                        end: "}".to_string(),
-                        close: true,
-                        newline: true,
-                    }],
-                    disabled_scopes_by_bracket_ix: Default::default(),
-                },
-                word_characters,
-                ..Default::default()
-            },
-            Some(tree_sitter_typescript::language_typescript()),
-        )
-        .with_queries(LanguageQueries {
-            brackets: Some(Cow::from(indoc! {r#"
-                ("(" @open ")" @close)
-                ("[" @open "]" @close)
-                ("{" @open "}" @close)
-                ("<" @open ">" @close)
-                ("\"" @open "\"" @close)"#})),
-            indents: Some(Cow::from(indoc! {r#"
-                [
-                    (call_expression)
-                    (assignment_expression)
-                    (member_expression)
-                    (lexical_declaration)
-                    (variable_declaration)
-                    (assignment_expression)
-                    (if_statement)
-                    (for_statement)
-                ] @indent
-
-                (_ "[" "]" @end) @indent
-                (_ "<" ">" @end) @indent
-                (_ "{" "}" @end) @indent
-                (_ "(" ")" @end) @indent
-                "#})),
-            ..Default::default()
-        })
-        .expect("Could not parse queries");
-
-        Self::new(language, capabilities, cx).await
-    }
-
-    // Constructs lsp range using a marked string with '[', ']' range delimiters
-    pub fn lsp_range(&mut self, marked_text: &str) -> lsp::Range {
-        let ranges = self.ranges(marked_text);
-        self.to_lsp_range(ranges[0].clone())
-    }
-
-    pub fn to_lsp_range(&mut self, range: Range<usize>) -> lsp::Range {
-        let snapshot = self.update_editor(|editor, cx| editor.snapshot(cx));
-        let start_point = range.start.to_point(&snapshot.buffer_snapshot);
-        let end_point = range.end.to_point(&snapshot.buffer_snapshot);
-
-        self.editor(|editor, cx| {
-            let buffer = editor.buffer().read(cx);
-            let start = point_to_lsp(
-                buffer
-                    .point_to_buffer_offset(start_point, cx)
-                    .unwrap()
-                    .1
-                    .to_point_utf16(&buffer.read(cx)),
-            );
-            let end = point_to_lsp(
-                buffer
-                    .point_to_buffer_offset(end_point, cx)
-                    .unwrap()
-                    .1
-                    .to_point_utf16(&buffer.read(cx)),
-            );
-
-            lsp::Range { start, end }
-        })
-    }
-
-    pub fn to_lsp(&mut self, offset: usize) -> lsp::Position {
-        let snapshot = self.update_editor(|editor, cx| editor.snapshot(cx));
-        let point = offset.to_point(&snapshot.buffer_snapshot);
-
-        self.editor(|editor, cx| {
-            let buffer = editor.buffer().read(cx);
-            point_to_lsp(
-                buffer
-                    .point_to_buffer_offset(point, cx)
-                    .unwrap()
-                    .1
-                    .to_point_utf16(&buffer.read(cx)),
-            )
-        })
-    }
-
-    pub fn update_workspace<F, T>(&mut self, update: F) -> T
-    where
-        F: FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> T,
-    {
-        self.workspace.update(self.cx.cx, update)
-    }
-
-    pub fn handle_request<T, F, Fut>(
-        &self,
-        mut handler: F,
-    ) -> futures::channel::mpsc::UnboundedReceiver<()>
-    where
-        T: 'static + request::Request,
-        T::Params: 'static + Send,
-        F: 'static + Send + FnMut(lsp::Url, T::Params, gpui::AsyncAppContext) -> Fut,
-        Fut: 'static + Send + Future<Output = Result<T::Result>>,
-    {
-        let url = self.buffer_lsp_url.clone();
-        self.lsp.handle_request::<T, _, _>(move |params, cx| {
-            let url = url.clone();
-            handler(url, params, cx)
-        })
-    }
-
-    pub fn notify<T: notification::Notification>(&self, params: T::Params) {
-        self.lsp.notify::<T>(params);
-    }
-}
-
-impl<'a> Deref for EditorLspTestContext<'a> {
-    type Target = EditorTestContext<'a>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.cx
-    }
-}
-
-impl<'a> DerefMut for EditorLspTestContext<'a> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.cx
-    }
-}
+// use std::{
+//     borrow::Cow,
+//     ops::{Deref, DerefMut, Range},
+//     sync::Arc,
+// };
+
+// use anyhow::Result;
+
+// use crate::{Editor, ToPoint};
+// use collections::HashSet;
+// use futures::Future;
+// use gpui::{json, View, ViewContext};
+// use indoc::indoc;
+// use language::{point_to_lsp, FakeLspAdapter, Language, LanguageConfig, LanguageQueries};
+// use lsp::{notification, request};
+// use multi_buffer::ToPointUtf16;
+// use project::Project;
+// use smol::stream::StreamExt;
+// use workspace::{AppState, Workspace, WorkspaceHandle};
+
+// use super::editor_test_context::EditorTestContext;
+
+// pub struct EditorLspTestContext<'a> {
+//     pub cx: EditorTestContext<'a>,
+//     pub lsp: lsp::FakeLanguageServer,
+//     pub workspace: View<Workspace>,
+//     pub buffer_lsp_url: lsp::Url,
+// }
+
+// impl<'a> EditorLspTestContext<'a> {
+//     pub async fn new(
+//         mut language: Language,
+//         capabilities: lsp::ServerCapabilities,
+//         cx: &'a mut gpui::TestAppContext,
+//     ) -> EditorLspTestContext<'a> {
+//         use json::json;
+
+//         let app_state = cx.update(AppState::test);
+
+//         cx.update(|cx| {
+//             language::init(cx);
+//             crate::init(cx);
+//             workspace::init(app_state.clone(), cx);
+//             Project::init_settings(cx);
+//         });
+
+//         let file_name = format!(
+//             "file.{}",
+//             language
+//                 .path_suffixes()
+//                 .first()
+//                 .expect("language must have a path suffix for EditorLspTestContext")
+//         );
+
+//         let mut fake_servers = language
+//             .set_fake_lsp_adapter(Arc::new(FakeLspAdapter {
+//                 capabilities,
+//                 ..Default::default()
+//             }))
+//             .await;
+
+//         let project = Project::test(app_state.fs.clone(), [], cx).await;
+//         project.update(cx, |project, _| project.languages().add(Arc::new(language)));
+
+//         app_state
+//             .fs
+//             .as_fake()
+//             .insert_tree("/root", json!({ "dir": { file_name.clone(): "" }}))
+//             .await;
+
+//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
+//         let workspace = window.root(cx);
+//         project
+//             .update(cx, |project, cx| {
+//                 project.find_or_create_local_worktree("/root", true, cx)
+//             })
+//             .await
+//             .unwrap();
+//         cx.read(|cx| workspace.read(cx).worktree_scans_complete(cx))
+//             .await;
+
+//         let file = cx.read(|cx| workspace.file_project_paths(cx)[0].clone());
+//         let item = workspace
+//             .update(cx, |workspace, cx| {
+//                 workspace.open_path(file, None, true, cx)
+//             })
+//             .await
+//             .expect("Could not open test file");
+
+//         let editor = cx.update(|cx| {
+//             item.act_as::<Editor>(cx)
+//                 .expect("Opened test file wasn't an editor")
+//         });
+//         editor.update(cx, |_, cx| cx.focus_self());
+
+//         let lsp = fake_servers.next().await.unwrap();
+
+//         Self {
+//             cx: EditorTestContext {
+//                 cx,
+//                 window: window.into(),
+//                 editor,
+//             },
+//             lsp,
+//             workspace,
+//             buffer_lsp_url: lsp::Url::from_file_path(format!("/root/dir/{file_name}")).unwrap(),
+//         }
+//     }
+
+//     pub async fn new_rust(
+//         capabilities: lsp::ServerCapabilities,
+//         cx: &'a mut gpui::TestAppContext,
+//     ) -> EditorLspTestContext<'a> {
+//         let language = Language::new(
+//             LanguageConfig {
+//                 name: "Rust".into(),
+//                 path_suffixes: vec!["rs".to_string()],
+//                 ..Default::default()
+//             },
+//             Some(tree_sitter_rust::language()),
+//         )
+//         .with_queries(LanguageQueries {
+//             indents: Some(Cow::from(indoc! {r#"
+//                 [
+//                     ((where_clause) _ @end)
+//                     (field_expression)
+//                     (call_expression)
+//                     (assignment_expression)
+//                     (let_declaration)
+//                     (let_chain)
+//                     (await_expression)
+//                 ] @indent
+
+//                 (_ "[" "]" @end) @indent
+//                 (_ "<" ">" @end) @indent
+//                 (_ "{" "}" @end) @indent
+//                 (_ "(" ")" @end) @indent"#})),
+//             brackets: Some(Cow::from(indoc! {r#"
+//                 ("(" @open ")" @close)
+//                 ("[" @open "]" @close)
+//                 ("{" @open "}" @close)
+//                 ("<" @open ">" @close)
+//                 ("\"" @open "\"" @close)
+//                 (closure_parameters "|" @open "|" @close)"#})),
+//             ..Default::default()
+//         })
+//         .expect("Could not parse queries");
+
+//         Self::new(language, capabilities, cx).await
+//     }
+
+//     pub async fn new_typescript(
+//         capabilities: lsp::ServerCapabilities,
+//         cx: &'a mut gpui::TestAppContext,
+//     ) -> EditorLspTestContext<'a> {
+//         let mut word_characters: HashSet<char> = Default::default();
+//         word_characters.insert('$');
+//         word_characters.insert('#');
+//         let language = Language::new(
+//             LanguageConfig {
+//                 name: "Typescript".into(),
+//                 path_suffixes: vec!["ts".to_string()],
+//                 brackets: language::BracketPairConfig {
+//                     pairs: vec![language::BracketPair {
+//                         start: "{".to_string(),
+//                         end: "}".to_string(),
+//                         close: true,
+//                         newline: true,
+//                     }],
+//                     disabled_scopes_by_bracket_ix: Default::default(),
+//                 },
+//                 word_characters,
+//                 ..Default::default()
+//             },
+//             Some(tree_sitter_typescript::language_typescript()),
+//         )
+//         .with_queries(LanguageQueries {
+//             brackets: Some(Cow::from(indoc! {r#"
+//                 ("(" @open ")" @close)
+//                 ("[" @open "]" @close)
+//                 ("{" @open "}" @close)
+//                 ("<" @open ">" @close)
+//                 ("\"" @open "\"" @close)"#})),
+//             indents: Some(Cow::from(indoc! {r#"
+//                 [
+//                     (call_expression)
+//                     (assignment_expression)
+//                     (member_expression)
+//                     (lexical_declaration)
+//                     (variable_declaration)
+//                     (assignment_expression)
+//                     (if_statement)
+//                     (for_statement)
+//                 ] @indent
+
+//                 (_ "[" "]" @end) @indent
+//                 (_ "<" ">" @end) @indent
+//                 (_ "{" "}" @end) @indent
+//                 (_ "(" ")" @end) @indent
+//                 "#})),
+//             ..Default::default()
+//         })
+//         .expect("Could not parse queries");
+
+//         Self::new(language, capabilities, cx).await
+//     }
+
+//     // Constructs lsp range using a marked string with '[', ']' range delimiters
+//     pub fn lsp_range(&mut self, marked_text: &str) -> lsp::Range {
+//         let ranges = self.ranges(marked_text);
+//         self.to_lsp_range(ranges[0].clone())
+//     }
+
+//     pub fn to_lsp_range(&mut self, range: Range<usize>) -> lsp::Range {
+//         let snapshot = self.update_editor(|editor, cx| editor.snapshot(cx));
+//         let start_point = range.start.to_point(&snapshot.buffer_snapshot);
+//         let end_point = range.end.to_point(&snapshot.buffer_snapshot);
+
+//         self.editor(|editor, cx| {
+//             let buffer = editor.buffer().read(cx);
+//             let start = point_to_lsp(
+//                 buffer
+//                     .point_to_buffer_offset(start_point, cx)
+//                     .unwrap()
+//                     .1
+//                     .to_point_utf16(&buffer.read(cx)),
+//             );
+//             let end = point_to_lsp(
+//                 buffer
+//                     .point_to_buffer_offset(end_point, cx)
+//                     .unwrap()
+//                     .1
+//                     .to_point_utf16(&buffer.read(cx)),
+//             );
+
+//             lsp::Range { start, end }
+//         })
+//     }
+
+//     pub fn to_lsp(&mut self, offset: usize) -> lsp::Position {
+//         let snapshot = self.update_editor(|editor, cx| editor.snapshot(cx));
+//         let point = offset.to_point(&snapshot.buffer_snapshot);
+
+//         self.editor(|editor, cx| {
+//             let buffer = editor.buffer().read(cx);
+//             point_to_lsp(
+//                 buffer
+//                     .point_to_buffer_offset(point, cx)
+//                     .unwrap()
+//                     .1
+//                     .to_point_utf16(&buffer.read(cx)),
+//             )
+//         })
+//     }
+
+//     pub fn update_workspace<F, T>(&mut self, update: F) -> T
+//     where
+//         F: FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> T,
+//     {
+//         self.workspace.update(self.cx.cx, update)
+//     }
+
+//     pub fn handle_request<T, F, Fut>(
+//         &self,
+//         mut handler: F,
+//     ) -> futures::channel::mpsc::UnboundedReceiver<()>
+//     where
+//         T: 'static + request::Request,
+//         T::Params: 'static + Send,
+//         F: 'static + Send + FnMut(lsp::Url, T::Params, gpui::AsyncAppContext) -> Fut,
+//         Fut: 'static + Send + Future<Output = Result<T::Result>>,
+//     {
+//         let url = self.buffer_lsp_url.clone();
+//         self.lsp.handle_request::<T, _, _>(move |params, cx| {
+//             let url = url.clone();
+//             handler(url, params, cx)
+//         })
+//     }
+
+//     pub fn notify<T: notification::Notification>(&self, params: T::Params) {
+//         self.lsp.notify::<T>(params);
+//     }
+// }
+
+// impl<'a> Deref for EditorLspTestContext<'a> {
+//     type Target = EditorTestContext<'a>;
+
+//     fn deref(&self) -> &Self::Target {
+//         &self.cx
+//     }
+// }
+
+// impl<'a> DerefMut for EditorLspTestContext<'a> {
+//     fn deref_mut(&mut self) -> &mut Self::Target {
+//         &mut self.cx
+//     }
+// }

crates/editor2/src/test/editor_test_context.rs 🔗

@@ -315,17 +315,17 @@ use util::{
 //     }
 // }
 // }
+//
+// impl<'a> Deref for EditorTestContext<'a> {
+//     type Target = gpui::TestAppContext;
 
-impl<'a> Deref for EditorTestContext<'a> {
-    type Target = gpui::TestAppContext;
-
-    fn deref(&self) -> &Self::Target {
-        self.cx
-    }
-}
+//     fn deref(&self) -> &Self::Target {
+//         self.cx
+//     }
+// }
 
-impl<'a> DerefMut for EditorTestContext<'a> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.cx
-    }
-}
+// impl<'a> DerefMut for EditorTestContext<'a> {
+//     fn deref_mut(&mut self) -> &mut Self::Target {
+//         &mut self.cx
+//     }
+// }

crates/gpui2/src/geometry.rs 🔗

@@ -755,6 +755,10 @@ impl Pixels {
     pub fn pow(&self, exponent: f32) -> Self {
         Self(self.0.powf(exponent))
     }
+
+    pub fn abs(&self) -> Self {
+        Self(self.0.abs())
+    }
 }
 
 impl Mul<Pixels> for Pixels {

crates/workspace2/src/item.rs 🔗

@@ -90,7 +90,7 @@ pub struct BreadcrumbText {
     pub highlights: Option<Vec<(Range<usize>, HighlightStyle)>>,
 }
 
-pub trait Item: Render + EventEmitter + Send {
+pub trait Item: Render + EventEmitter {
     fn deactivated(&mut self, _: &mut ViewContext<Self>) {}
     fn workspace_deactivated(&mut self, _: &mut ViewContext<Self>) {}
     fn navigate(&mut self, _: Box<dyn Any>, _: &mut ViewContext<Self>) -> bool {