1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::DiffHunkStatus;
50pub(crate) use actions::*;
51pub use actions::{OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion::Direction;
90use inline_completion::{InlayProposal, InlineCompletionProvider, InlineCompletionProviderHandle};
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId, LanguageServerName,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
129 Project, ProjectItem, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Debug, Copy, Clone, PartialEq, Eq)]
277pub enum Navigated {
278 Yes,
279 No,
280}
281
282impl Navigated {
283 pub fn from_bool(yes: bool) -> Navigated {
284 if yes {
285 Navigated::Yes
286 } else {
287 Navigated::No
288 }
289 }
290}
291
292pub fn init_settings(cx: &mut AppContext) {
293 EditorSettings::register(cx);
294}
295
296pub fn init(cx: &mut AppContext) {
297 init_settings(cx);
298
299 workspace::register_project_item::<Editor>(cx);
300 workspace::FollowableViewRegistry::register::<Editor>(cx);
301 workspace::register_serializable_item::<Editor>(cx);
302
303 cx.observe_new_views(
304 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
305 workspace.register_action(Editor::new_file);
306 workspace.register_action(Editor::new_file_vertical);
307 workspace.register_action(Editor::new_file_horizontal);
308 },
309 )
310 .detach();
311
312 cx.on_action(move |_: &workspace::NewFile, cx| {
313 let app_state = workspace::AppState::global(cx);
314 if let Some(app_state) = app_state.upgrade() {
315 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
316 Editor::new_file(workspace, &Default::default(), cx)
317 })
318 .detach();
319 }
320 });
321 cx.on_action(move |_: &workspace::NewWindow, cx| {
322 let app_state = workspace::AppState::global(cx);
323 if let Some(app_state) = app_state.upgrade() {
324 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
325 Editor::new_file(workspace, &Default::default(), cx)
326 })
327 .detach();
328 }
329 });
330}
331
332pub struct SearchWithinRange;
333
334trait InvalidationRegion {
335 fn ranges(&self) -> &[Range<Anchor>];
336}
337
338#[derive(Clone, Debug, PartialEq)]
339pub enum SelectPhase {
340 Begin {
341 position: DisplayPoint,
342 add: bool,
343 click_count: usize,
344 },
345 BeginColumnar {
346 position: DisplayPoint,
347 reset: bool,
348 goal_column: u32,
349 },
350 Extend {
351 position: DisplayPoint,
352 click_count: usize,
353 },
354 Update {
355 position: DisplayPoint,
356 goal_column: u32,
357 scroll_delta: gpui::Point<f32>,
358 },
359 End,
360}
361
362#[derive(Clone, Debug)]
363pub enum SelectMode {
364 Character,
365 Word(Range<Anchor>),
366 Line(Range<Anchor>),
367 All,
368}
369
370#[derive(Copy, Clone, PartialEq, Eq, Debug)]
371pub enum EditorMode {
372 SingleLine { auto_width: bool },
373 AutoHeight { max_lines: usize },
374 Full,
375}
376
377#[derive(Copy, Clone, Debug)]
378pub enum SoftWrap {
379 /// Prefer not to wrap at all.
380 ///
381 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
382 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
383 GitDiff,
384 /// Prefer a single line generally, unless an overly long line is encountered.
385 None,
386 /// Soft wrap lines that exceed the editor width.
387 EditorWidth,
388 /// Soft wrap lines at the preferred line length.
389 Column(u32),
390 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
391 Bounded(u32),
392}
393
394#[derive(Clone)]
395pub struct EditorStyle {
396 pub background: Hsla,
397 pub local_player: PlayerColor,
398 pub text: TextStyle,
399 pub scrollbar_width: Pixels,
400 pub syntax: Arc<SyntaxTheme>,
401 pub status: StatusColors,
402 pub inlay_hints_style: HighlightStyle,
403 pub suggestions_style: HighlightStyle,
404 pub unnecessary_code_fade: f32,
405}
406
407impl Default for EditorStyle {
408 fn default() -> Self {
409 Self {
410 background: Hsla::default(),
411 local_player: PlayerColor::default(),
412 text: TextStyle::default(),
413 scrollbar_width: Pixels::default(),
414 syntax: Default::default(),
415 // HACK: Status colors don't have a real default.
416 // We should look into removing the status colors from the editor
417 // style and retrieve them directly from the theme.
418 status: StatusColors::dark(),
419 inlay_hints_style: HighlightStyle::default(),
420 suggestions_style: HighlightStyle::default(),
421 unnecessary_code_fade: Default::default(),
422 }
423 }
424}
425
426pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
427 let show_background = language_settings::language_settings(None, None, cx)
428 .inlay_hints
429 .show_background;
430
431 HighlightStyle {
432 color: Some(cx.theme().status().hint),
433 background_color: show_background.then(|| cx.theme().status().hint_background),
434 ..HighlightStyle::default()
435 }
436}
437
438type CompletionId = usize;
439
440#[derive(Clone, Debug)]
441struct CompletionState {
442 // render_inlay_ids represents the inlay hints that are inserted
443 // for rendering the inline completions. They may be discontinuous
444 // in the event that the completion provider returns some intersection
445 // with the existing content.
446 render_inlay_ids: Vec<InlayId>,
447 // text is the resulting rope that is inserted when the user accepts a completion.
448 text: Rope,
449 // position is the position of the cursor when the completion was triggered.
450 position: multi_buffer::Anchor,
451 // delete_range is the range of text that this completion state covers.
452 // if the completion is accepted, this range should be deleted.
453 delete_range: Option<Range<multi_buffer::Anchor>>,
454}
455
456#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
457struct EditorActionId(usize);
458
459impl EditorActionId {
460 pub fn post_inc(&mut self) -> Self {
461 let answer = self.0;
462
463 *self = Self(answer + 1);
464
465 Self(answer)
466 }
467}
468
469// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
470// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
471
472type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
473type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
474
475#[derive(Default)]
476struct ScrollbarMarkerState {
477 scrollbar_size: Size<Pixels>,
478 dirty: bool,
479 markers: Arc<[PaintQuad]>,
480 pending_refresh: Option<Task<Result<()>>>,
481}
482
483impl ScrollbarMarkerState {
484 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
485 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
486 }
487}
488
489#[derive(Clone, Debug)]
490struct RunnableTasks {
491 templates: Vec<(TaskSourceKind, TaskTemplate)>,
492 offset: MultiBufferOffset,
493 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
494 column: u32,
495 // Values of all named captures, including those starting with '_'
496 extra_variables: HashMap<String, String>,
497 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
498 context_range: Range<BufferOffset>,
499}
500
501impl RunnableTasks {
502 fn resolve<'a>(
503 &'a self,
504 cx: &'a task::TaskContext,
505 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
506 self.templates.iter().filter_map(|(kind, template)| {
507 template
508 .resolve_task(&kind.to_id_base(), cx)
509 .map(|task| (kind.clone(), task))
510 })
511 }
512}
513
514#[derive(Clone)]
515struct ResolvedTasks {
516 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
517 position: Anchor,
518}
519#[derive(Copy, Clone, Debug)]
520struct MultiBufferOffset(usize);
521#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
522struct BufferOffset(usize);
523
524// Addons allow storing per-editor state in other crates (e.g. Vim)
525pub trait Addon: 'static {
526 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
527
528 fn to_any(&self) -> &dyn std::any::Any;
529}
530
531#[derive(Debug, Copy, Clone, PartialEq, Eq)]
532pub enum IsVimMode {
533 Yes,
534 No,
535}
536
537/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
538///
539/// See the [module level documentation](self) for more information.
540pub struct Editor {
541 focus_handle: FocusHandle,
542 last_focused_descendant: Option<WeakFocusHandle>,
543 /// The text buffer being edited
544 buffer: Model<MultiBuffer>,
545 /// Map of how text in the buffer should be displayed.
546 /// Handles soft wraps, folds, fake inlay text insertions, etc.
547 pub display_map: Model<DisplayMap>,
548 pub selections: SelectionsCollection,
549 pub scroll_manager: ScrollManager,
550 /// When inline assist editors are linked, they all render cursors because
551 /// typing enters text into each of them, even the ones that aren't focused.
552 pub(crate) show_cursor_when_unfocused: bool,
553 columnar_selection_tail: Option<Anchor>,
554 add_selections_state: Option<AddSelectionsState>,
555 select_next_state: Option<SelectNextState>,
556 select_prev_state: Option<SelectNextState>,
557 selection_history: SelectionHistory,
558 autoclose_regions: Vec<AutocloseRegion>,
559 snippet_stack: InvalidationStack<SnippetState>,
560 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
561 ime_transaction: Option<TransactionId>,
562 active_diagnostics: Option<ActiveDiagnosticGroup>,
563 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
564
565 project: Option<Model<Project>>,
566 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
567 completion_provider: Option<Box<dyn CompletionProvider>>,
568 collaboration_hub: Option<Box<dyn CollaborationHub>>,
569 blink_manager: Model<BlinkManager>,
570 show_cursor_names: bool,
571 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
572 pub show_local_selections: bool,
573 mode: EditorMode,
574 show_breadcrumbs: bool,
575 show_gutter: bool,
576 show_line_numbers: Option<bool>,
577 use_relative_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 show_wrap_guides: Option<bool>,
582 show_indent_guides: Option<bool>,
583 placeholder_text: Option<Arc<str>>,
584 highlight_order: usize,
585 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
586 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
587 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
588 scrollbar_marker_state: ScrollbarMarkerState,
589 active_indent_guides_state: ActiveIndentGuidesState,
590 nav_history: Option<ItemNavHistory>,
591 context_menu: RwLock<Option<ContextMenu>>,
592 mouse_context_menu: Option<MouseContextMenu>,
593 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
600 code_actions_task: Option<Task<Result<()>>>,
601 document_highlights_task: Option<Task<()>>,
602 linked_editing_range_task: Option<Task<Option<()>>>,
603 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
604 pending_rename: Option<RenameState>,
605 searchable: bool,
606 cursor_shape: CursorShape,
607 current_line_highlight: Option<CurrentLineHighlight>,
608 collapse_matches: bool,
609 autoindent_mode: Option<AutoindentMode>,
610 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
611 input_enabled: bool,
612 use_modal_editing: bool,
613 read_only: bool,
614 leader_peer_id: Option<PeerId>,
615 remote_id: Option<ViewId>,
616 hover_state: HoverState,
617 gutter_hovered: bool,
618 hovered_link_state: Option<HoveredLinkState>,
619 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
620 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
621 active_inline_completion: Option<CompletionState>,
622 // enable_inline_completions is a switch that Vim can use to disable
623 // inline completions based on its mode.
624 enable_inline_completions: bool,
625 show_inline_completions_override: Option<bool>,
626 inlay_hint_cache: InlayHintCache,
627 expanded_hunks: ExpandedHunks,
628 next_inlay_id: usize,
629 _subscriptions: Vec<Subscription>,
630 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
631 gutter_dimensions: GutterDimensions,
632 style: Option<EditorStyle>,
633 text_style_refinement: Option<TextStyleRefinement>,
634 next_editor_action_id: EditorActionId,
635 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
636 use_autoclose: bool,
637 use_auto_surround: bool,
638 auto_replace_emoji_shortcode: bool,
639 show_git_blame_gutter: bool,
640 show_git_blame_inline: bool,
641 show_git_blame_inline_delay_task: Option<Task<()>>,
642 git_blame_inline_enabled: bool,
643 serialize_dirty_buffers: bool,
644 show_selection_menu: Option<bool>,
645 blame: Option<Model<GitBlame>>,
646 blame_subscription: Option<Subscription>,
647 custom_context_menu: Option<
648 Box<
649 dyn 'static
650 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
651 >,
652 >,
653 last_bounds: Option<Bounds<Pixels>>,
654 expect_bounds_change: Option<Bounds<Pixels>>,
655 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
656 tasks_update_task: Option<Task<()>>,
657 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
658 breadcrumb_header: Option<String>,
659 focused_block: Option<FocusedBlock>,
660 next_scroll_position: NextScrollCursorCenterTopBottom,
661 addons: HashMap<TypeId, Box<dyn Addon>>,
662 _scroll_cursor_center_top_bottom_task: Task<()>,
663}
664
665#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
666enum NextScrollCursorCenterTopBottom {
667 #[default]
668 Center,
669 Top,
670 Bottom,
671}
672
673impl NextScrollCursorCenterTopBottom {
674 fn next(&self) -> Self {
675 match self {
676 Self::Center => Self::Top,
677 Self::Top => Self::Bottom,
678 Self::Bottom => Self::Center,
679 }
680 }
681}
682
683#[derive(Clone)]
684pub struct EditorSnapshot {
685 pub mode: EditorMode,
686 show_gutter: bool,
687 show_line_numbers: Option<bool>,
688 show_git_diff_gutter: Option<bool>,
689 show_code_actions: Option<bool>,
690 show_runnables: Option<bool>,
691 git_blame_gutter_max_author_length: Option<usize>,
692 pub display_snapshot: DisplaySnapshot,
693 pub placeholder_text: Option<Arc<str>>,
694 is_focused: bool,
695 scroll_anchor: ScrollAnchor,
696 ongoing_scroll: OngoingScroll,
697 current_line_highlight: CurrentLineHighlight,
698 gutter_hovered: bool,
699}
700
701const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
702
703#[derive(Default, Debug, Clone, Copy)]
704pub struct GutterDimensions {
705 pub left_padding: Pixels,
706 pub right_padding: Pixels,
707 pub width: Pixels,
708 pub margin: Pixels,
709 pub git_blame_entries_width: Option<Pixels>,
710}
711
712impl GutterDimensions {
713 /// The full width of the space taken up by the gutter.
714 pub fn full_width(&self) -> Pixels {
715 self.margin + self.width
716 }
717
718 /// The width of the space reserved for the fold indicators,
719 /// use alongside 'justify_end' and `gutter_width` to
720 /// right align content with the line numbers
721 pub fn fold_area_width(&self) -> Pixels {
722 self.margin + self.right_padding
723 }
724}
725
726#[derive(Debug)]
727pub struct RemoteSelection {
728 pub replica_id: ReplicaId,
729 pub selection: Selection<Anchor>,
730 pub cursor_shape: CursorShape,
731 pub peer_id: PeerId,
732 pub line_mode: bool,
733 pub participant_index: Option<ParticipantIndex>,
734 pub user_name: Option<SharedString>,
735}
736
737#[derive(Clone, Debug)]
738struct SelectionHistoryEntry {
739 selections: Arc<[Selection<Anchor>]>,
740 select_next_state: Option<SelectNextState>,
741 select_prev_state: Option<SelectNextState>,
742 add_selections_state: Option<AddSelectionsState>,
743}
744
745enum SelectionHistoryMode {
746 Normal,
747 Undoing,
748 Redoing,
749}
750
751#[derive(Clone, PartialEq, Eq, Hash)]
752struct HoveredCursor {
753 replica_id: u16,
754 selection_id: usize,
755}
756
757impl Default for SelectionHistoryMode {
758 fn default() -> Self {
759 Self::Normal
760 }
761}
762
763#[derive(Default)]
764struct SelectionHistory {
765 #[allow(clippy::type_complexity)]
766 selections_by_transaction:
767 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
768 mode: SelectionHistoryMode,
769 undo_stack: VecDeque<SelectionHistoryEntry>,
770 redo_stack: VecDeque<SelectionHistoryEntry>,
771}
772
773impl SelectionHistory {
774 fn insert_transaction(
775 &mut self,
776 transaction_id: TransactionId,
777 selections: Arc<[Selection<Anchor>]>,
778 ) {
779 self.selections_by_transaction
780 .insert(transaction_id, (selections, None));
781 }
782
783 #[allow(clippy::type_complexity)]
784 fn transaction(
785 &self,
786 transaction_id: TransactionId,
787 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
788 self.selections_by_transaction.get(&transaction_id)
789 }
790
791 #[allow(clippy::type_complexity)]
792 fn transaction_mut(
793 &mut self,
794 transaction_id: TransactionId,
795 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
796 self.selections_by_transaction.get_mut(&transaction_id)
797 }
798
799 fn push(&mut self, entry: SelectionHistoryEntry) {
800 if !entry.selections.is_empty() {
801 match self.mode {
802 SelectionHistoryMode::Normal => {
803 self.push_undo(entry);
804 self.redo_stack.clear();
805 }
806 SelectionHistoryMode::Undoing => self.push_redo(entry),
807 SelectionHistoryMode::Redoing => self.push_undo(entry),
808 }
809 }
810 }
811
812 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
813 if self
814 .undo_stack
815 .back()
816 .map_or(true, |e| e.selections != entry.selections)
817 {
818 self.undo_stack.push_back(entry);
819 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
820 self.undo_stack.pop_front();
821 }
822 }
823 }
824
825 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
826 if self
827 .redo_stack
828 .back()
829 .map_or(true, |e| e.selections != entry.selections)
830 {
831 self.redo_stack.push_back(entry);
832 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
833 self.redo_stack.pop_front();
834 }
835 }
836 }
837}
838
839struct RowHighlight {
840 index: usize,
841 range: Range<Anchor>,
842 color: Hsla,
843 should_autoscroll: bool,
844}
845
846#[derive(Clone, Debug)]
847struct AddSelectionsState {
848 above: bool,
849 stack: Vec<usize>,
850}
851
852#[derive(Clone)]
853struct SelectNextState {
854 query: AhoCorasick,
855 wordwise: bool,
856 done: bool,
857}
858
859impl std::fmt::Debug for SelectNextState {
860 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
861 f.debug_struct(std::any::type_name::<Self>())
862 .field("wordwise", &self.wordwise)
863 .field("done", &self.done)
864 .finish()
865 }
866}
867
868#[derive(Debug)]
869struct AutocloseRegion {
870 selection_id: usize,
871 range: Range<Anchor>,
872 pair: BracketPair,
873}
874
875#[derive(Debug)]
876struct SnippetState {
877 ranges: Vec<Vec<Range<Anchor>>>,
878 active_index: usize,
879 choices: Vec<Option<Vec<String>>>,
880}
881
882#[doc(hidden)]
883pub struct RenameState {
884 pub range: Range<Anchor>,
885 pub old_name: Arc<str>,
886 pub editor: View<Editor>,
887 block_id: CustomBlockId,
888}
889
890struct InvalidationStack<T>(Vec<T>);
891
892struct RegisteredInlineCompletionProvider {
893 provider: Arc<dyn InlineCompletionProviderHandle>,
894 _subscription: Subscription,
895}
896
897enum ContextMenu {
898 Completions(CompletionsMenu),
899 CodeActions(CodeActionsMenu),
900}
901
902impl ContextMenu {
903 fn select_first(
904 &mut self,
905 provider: Option<&dyn CompletionProvider>,
906 cx: &mut ViewContext<Editor>,
907 ) -> bool {
908 if self.visible() {
909 match self {
910 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_first(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_prev(
920 &mut self,
921 provider: Option<&dyn CompletionProvider>,
922 cx: &mut ViewContext<Editor>,
923 ) -> bool {
924 if self.visible() {
925 match self {
926 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_next(
936 &mut self,
937 provider: Option<&dyn CompletionProvider>,
938 cx: &mut ViewContext<Editor>,
939 ) -> bool {
940 if self.visible() {
941 match self {
942 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_next(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn select_last(
952 &mut self,
953 provider: Option<&dyn CompletionProvider>,
954 cx: &mut ViewContext<Editor>,
955 ) -> bool {
956 if self.visible() {
957 match self {
958 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
959 ContextMenu::CodeActions(menu) => menu.select_last(cx),
960 }
961 true
962 } else {
963 false
964 }
965 }
966
967 fn visible(&self) -> bool {
968 match self {
969 ContextMenu::Completions(menu) => menu.visible(),
970 ContextMenu::CodeActions(menu) => menu.visible(),
971 }
972 }
973
974 fn render(
975 &self,
976 cursor_position: DisplayPoint,
977 style: &EditorStyle,
978 max_height: Pixels,
979 workspace: Option<WeakView<Workspace>>,
980 cx: &mut ViewContext<Editor>,
981 ) -> (ContextMenuOrigin, AnyElement) {
982 match self {
983 ContextMenu::Completions(menu) => (
984 ContextMenuOrigin::EditorPoint(cursor_position),
985 menu.render(style, max_height, workspace, cx),
986 ),
987 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
988 }
989 }
990}
991
992enum ContextMenuOrigin {
993 EditorPoint(DisplayPoint),
994 GutterIndicator(DisplayRow),
995}
996
997#[derive(Clone, Debug)]
998struct CompletionsMenu {
999 id: CompletionId,
1000 sort_completions: bool,
1001 initial_position: Anchor,
1002 buffer: Model<Buffer>,
1003 completions: Arc<RwLock<Box<[Completion]>>>,
1004 match_candidates: Arc<[StringMatchCandidate]>,
1005 matches: Arc<[StringMatch]>,
1006 selected_item: usize,
1007 scroll_handle: UniformListScrollHandle,
1008 selected_completion_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1009}
1010
1011impl CompletionsMenu {
1012 fn new(
1013 id: CompletionId,
1014 sort_completions: bool,
1015 initial_position: Anchor,
1016 buffer: Model<Buffer>,
1017 completions: Box<[Completion]>,
1018 ) -> Self {
1019 let match_candidates = completions
1020 .iter()
1021 .enumerate()
1022 .map(|(id, completion)| {
1023 StringMatchCandidate::new(
1024 id,
1025 completion.label.text[completion.label.filter_range.clone()].into(),
1026 )
1027 })
1028 .collect();
1029
1030 Self {
1031 id,
1032 sort_completions,
1033 initial_position,
1034 buffer,
1035 completions: Arc::new(RwLock::new(completions)),
1036 match_candidates,
1037 matches: Vec::new().into(),
1038 selected_item: 0,
1039 scroll_handle: UniformListScrollHandle::new(),
1040 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1041 }
1042 }
1043
1044 fn new_snippet_choices(
1045 id: CompletionId,
1046 sort_completions: bool,
1047 choices: &Vec<String>,
1048 selection: Range<Anchor>,
1049 buffer: Model<Buffer>,
1050 ) -> Self {
1051 let completions = choices
1052 .iter()
1053 .map(|choice| Completion {
1054 old_range: selection.start.text_anchor..selection.end.text_anchor,
1055 new_text: choice.to_string(),
1056 label: CodeLabel {
1057 text: choice.to_string(),
1058 runs: Default::default(),
1059 filter_range: Default::default(),
1060 },
1061 server_id: LanguageServerId(usize::MAX),
1062 documentation: None,
1063 lsp_completion: Default::default(),
1064 confirm: None,
1065 })
1066 .collect();
1067
1068 let match_candidates = choices
1069 .iter()
1070 .enumerate()
1071 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1072 .collect();
1073 let matches = choices
1074 .iter()
1075 .enumerate()
1076 .map(|(id, completion)| StringMatch {
1077 candidate_id: id,
1078 score: 1.,
1079 positions: vec![],
1080 string: completion.clone(),
1081 })
1082 .collect();
1083 Self {
1084 id,
1085 sort_completions,
1086 initial_position: selection.start,
1087 buffer,
1088 completions: Arc::new(RwLock::new(completions)),
1089 match_candidates,
1090 matches,
1091 selected_item: 0,
1092 scroll_handle: UniformListScrollHandle::new(),
1093 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1094 }
1095 }
1096
1097 fn suppress_documentation_resolution(mut self) -> Self {
1098 self.selected_completion_resolve_debounce.take();
1099 self
1100 }
1101
1102 fn select_first(
1103 &mut self,
1104 provider: Option<&dyn CompletionProvider>,
1105 cx: &mut ViewContext<Editor>,
1106 ) {
1107 self.selected_item = 0;
1108 self.scroll_handle
1109 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1110 self.resolve_selected_completion(provider, cx);
1111 cx.notify();
1112 }
1113
1114 fn select_prev(
1115 &mut self,
1116 provider: Option<&dyn CompletionProvider>,
1117 cx: &mut ViewContext<Editor>,
1118 ) {
1119 if self.selected_item > 0 {
1120 self.selected_item -= 1;
1121 } else {
1122 self.selected_item = self.matches.len() - 1;
1123 }
1124 self.scroll_handle
1125 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1126 self.resolve_selected_completion(provider, cx);
1127 cx.notify();
1128 }
1129
1130 fn select_next(
1131 &mut self,
1132 provider: Option<&dyn CompletionProvider>,
1133 cx: &mut ViewContext<Editor>,
1134 ) {
1135 if self.selected_item + 1 < self.matches.len() {
1136 self.selected_item += 1;
1137 } else {
1138 self.selected_item = 0;
1139 }
1140 self.scroll_handle
1141 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1142 self.resolve_selected_completion(provider, cx);
1143 cx.notify();
1144 }
1145
1146 fn select_last(
1147 &mut self,
1148 provider: Option<&dyn CompletionProvider>,
1149 cx: &mut ViewContext<Editor>,
1150 ) {
1151 self.selected_item = self.matches.len() - 1;
1152 self.scroll_handle
1153 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1154 self.resolve_selected_completion(provider, cx);
1155 cx.notify();
1156 }
1157
1158 fn resolve_selected_completion(
1159 &mut self,
1160 provider: Option<&dyn CompletionProvider>,
1161 cx: &mut ViewContext<Editor>,
1162 ) {
1163 let completion_index = self.matches[self.selected_item].candidate_id;
1164 let Some(provider) = provider else {
1165 return;
1166 };
1167 let Some(completion_resolve) = self.selected_completion_resolve_debounce.as_ref() else {
1168 return;
1169 };
1170
1171 let resolve_task = provider.resolve_completions(
1172 self.buffer.clone(),
1173 vec![completion_index],
1174 self.completions.clone(),
1175 cx,
1176 );
1177
1178 let delay_ms =
1179 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1180 let delay = Duration::from_millis(delay_ms);
1181
1182 completion_resolve.lock().fire_new(delay, cx, |_, cx| {
1183 cx.spawn(move |this, mut cx| async move {
1184 if let Some(true) = resolve_task.await.log_err() {
1185 this.update(&mut cx, |_, cx| cx.notify()).ok();
1186 }
1187 })
1188 });
1189 }
1190
1191 fn visible(&self) -> bool {
1192 !self.matches.is_empty()
1193 }
1194
1195 fn render(
1196 &self,
1197 style: &EditorStyle,
1198 max_height: Pixels,
1199 workspace: Option<WeakView<Workspace>>,
1200 cx: &mut ViewContext<Editor>,
1201 ) -> AnyElement {
1202 let settings = EditorSettings::get_global(cx);
1203 let show_completion_documentation = settings.show_completion_documentation;
1204
1205 let widest_completion_ix = self
1206 .matches
1207 .iter()
1208 .enumerate()
1209 .max_by_key(|(_, mat)| {
1210 let completions = self.completions.read();
1211 let completion = &completions[mat.candidate_id];
1212 let documentation = &completion.documentation;
1213
1214 let mut len = completion.label.text.chars().count();
1215 if let Some(Documentation::SingleLine(text)) = documentation {
1216 if show_completion_documentation {
1217 len += text.chars().count();
1218 }
1219 }
1220
1221 len
1222 })
1223 .map(|(ix, _)| ix);
1224
1225 let completions = self.completions.clone();
1226 let matches = self.matches.clone();
1227 let selected_item = self.selected_item;
1228 let style = style.clone();
1229
1230 let multiline_docs = if show_completion_documentation {
1231 let mat = &self.matches[selected_item];
1232 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1233 Some(Documentation::MultiLinePlainText(text)) => {
1234 Some(div().child(SharedString::from(text.clone())))
1235 }
1236 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1237 Some(div().child(render_parsed_markdown(
1238 "completions_markdown",
1239 parsed,
1240 &style,
1241 workspace,
1242 cx,
1243 )))
1244 }
1245 _ => None,
1246 };
1247 multiline_docs.map(|div| {
1248 div.id("multiline_docs")
1249 .max_h(max_height)
1250 .flex_1()
1251 .px_1p5()
1252 .py_1()
1253 .min_w(px(260.))
1254 .max_w(px(640.))
1255 .w(px(500.))
1256 .overflow_y_scroll()
1257 .occlude()
1258 })
1259 } else {
1260 None
1261 };
1262
1263 let list = uniform_list(
1264 cx.view().clone(),
1265 "completions",
1266 matches.len(),
1267 move |_editor, range, cx| {
1268 let start_ix = range.start;
1269 let completions_guard = completions.read();
1270
1271 matches[range]
1272 .iter()
1273 .enumerate()
1274 .map(|(ix, mat)| {
1275 let item_ix = start_ix + ix;
1276 let candidate_id = mat.candidate_id;
1277 let completion = &completions_guard[candidate_id];
1278
1279 let documentation = if show_completion_documentation {
1280 &completion.documentation
1281 } else {
1282 &None
1283 };
1284
1285 let highlights = gpui::combine_highlights(
1286 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1287 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1288 |(range, mut highlight)| {
1289 // Ignore font weight for syntax highlighting, as we'll use it
1290 // for fuzzy matches.
1291 highlight.font_weight = None;
1292
1293 if completion.lsp_completion.deprecated.unwrap_or(false) {
1294 highlight.strikethrough = Some(StrikethroughStyle {
1295 thickness: 1.0.into(),
1296 ..Default::default()
1297 });
1298 highlight.color = Some(cx.theme().colors().text_muted);
1299 }
1300
1301 (range, highlight)
1302 },
1303 ),
1304 );
1305 let completion_label = StyledText::new(completion.label.text.clone())
1306 .with_highlights(&style.text, highlights);
1307 let documentation_label =
1308 if let Some(Documentation::SingleLine(text)) = documentation {
1309 if text.trim().is_empty() {
1310 None
1311 } else {
1312 Some(
1313 Label::new(text.clone())
1314 .ml_4()
1315 .size(LabelSize::Small)
1316 .color(Color::Muted),
1317 )
1318 }
1319 } else {
1320 None
1321 };
1322
1323 let color_swatch = completion
1324 .color()
1325 .map(|color| div().size_4().bg(color).rounded_sm());
1326
1327 div().min_w(px(220.)).max_w(px(540.)).child(
1328 ListItem::new(mat.candidate_id)
1329 .inset(true)
1330 .selected(item_ix == selected_item)
1331 .on_click(cx.listener(move |editor, _event, cx| {
1332 cx.stop_propagation();
1333 if let Some(task) = editor.confirm_completion(
1334 &ConfirmCompletion {
1335 item_ix: Some(item_ix),
1336 },
1337 cx,
1338 ) {
1339 task.detach_and_log_err(cx)
1340 }
1341 }))
1342 .start_slot::<Div>(color_swatch)
1343 .child(h_flex().overflow_hidden().child(completion_label))
1344 .end_slot::<Label>(documentation_label),
1345 )
1346 })
1347 .collect()
1348 },
1349 )
1350 .occlude()
1351 .max_h(max_height)
1352 .track_scroll(self.scroll_handle.clone())
1353 .with_width_from_item(widest_completion_ix)
1354 .with_sizing_behavior(ListSizingBehavior::Infer);
1355
1356 Popover::new()
1357 .child(list)
1358 .when_some(multiline_docs, |popover, multiline_docs| {
1359 popover.aside(multiline_docs)
1360 })
1361 .into_any_element()
1362 }
1363
1364 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1365 let mut matches = if let Some(query) = query {
1366 fuzzy::match_strings(
1367 &self.match_candidates,
1368 query,
1369 query.chars().any(|c| c.is_uppercase()),
1370 100,
1371 &Default::default(),
1372 executor,
1373 )
1374 .await
1375 } else {
1376 self.match_candidates
1377 .iter()
1378 .enumerate()
1379 .map(|(candidate_id, candidate)| StringMatch {
1380 candidate_id,
1381 score: Default::default(),
1382 positions: Default::default(),
1383 string: candidate.string.clone(),
1384 })
1385 .collect()
1386 };
1387
1388 // Remove all candidates where the query's start does not match the start of any word in the candidate
1389 if let Some(query) = query {
1390 if let Some(query_start) = query.chars().next() {
1391 matches.retain(|string_match| {
1392 split_words(&string_match.string).any(|word| {
1393 // Check that the first codepoint of the word as lowercase matches the first
1394 // codepoint of the query as lowercase
1395 word.chars()
1396 .flat_map(|codepoint| codepoint.to_lowercase())
1397 .zip(query_start.to_lowercase())
1398 .all(|(word_cp, query_cp)| word_cp == query_cp)
1399 })
1400 });
1401 }
1402 }
1403
1404 let completions = self.completions.read();
1405 if self.sort_completions {
1406 matches.sort_unstable_by_key(|mat| {
1407 // We do want to strike a balance here between what the language server tells us
1408 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1409 // `Creat` and there is a local variable called `CreateComponent`).
1410 // So what we do is: we bucket all matches into two buckets
1411 // - Strong matches
1412 // - Weak matches
1413 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1414 // and the Weak matches are the rest.
1415 //
1416 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1417 // matches, we prefer language-server sort_text first.
1418 //
1419 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1420 // Rest of the matches(weak) can be sorted as language-server expects.
1421
1422 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1423 enum MatchScore<'a> {
1424 Strong {
1425 score: Reverse<OrderedFloat<f64>>,
1426 sort_text: Option<&'a str>,
1427 sort_key: (usize, &'a str),
1428 },
1429 Weak {
1430 sort_text: Option<&'a str>,
1431 score: Reverse<OrderedFloat<f64>>,
1432 sort_key: (usize, &'a str),
1433 },
1434 }
1435
1436 let completion = &completions[mat.candidate_id];
1437 let sort_key = completion.sort_key();
1438 let sort_text = completion.lsp_completion.sort_text.as_deref();
1439 let score = Reverse(OrderedFloat(mat.score));
1440
1441 if mat.score >= 0.2 {
1442 MatchScore::Strong {
1443 score,
1444 sort_text,
1445 sort_key,
1446 }
1447 } else {
1448 MatchScore::Weak {
1449 sort_text,
1450 score,
1451 sort_key,
1452 }
1453 }
1454 });
1455 }
1456
1457 for mat in &mut matches {
1458 let completion = &completions[mat.candidate_id];
1459 mat.string.clone_from(&completion.label.text);
1460 for position in &mut mat.positions {
1461 *position += completion.label.filter_range.start;
1462 }
1463 }
1464 drop(completions);
1465
1466 self.matches = matches.into();
1467 self.selected_item = 0;
1468 }
1469}
1470
1471#[derive(Clone)]
1472struct AvailableCodeAction {
1473 excerpt_id: ExcerptId,
1474 action: CodeAction,
1475 provider: Arc<dyn CodeActionProvider>,
1476}
1477
1478#[derive(Clone)]
1479struct CodeActionContents {
1480 tasks: Option<Arc<ResolvedTasks>>,
1481 actions: Option<Arc<[AvailableCodeAction]>>,
1482}
1483
1484impl CodeActionContents {
1485 fn len(&self) -> usize {
1486 match (&self.tasks, &self.actions) {
1487 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1488 (Some(tasks), None) => tasks.templates.len(),
1489 (None, Some(actions)) => actions.len(),
1490 (None, None) => 0,
1491 }
1492 }
1493
1494 fn is_empty(&self) -> bool {
1495 match (&self.tasks, &self.actions) {
1496 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1497 (Some(tasks), None) => tasks.templates.is_empty(),
1498 (None, Some(actions)) => actions.is_empty(),
1499 (None, None) => true,
1500 }
1501 }
1502
1503 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1504 self.tasks
1505 .iter()
1506 .flat_map(|tasks| {
1507 tasks
1508 .templates
1509 .iter()
1510 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1511 })
1512 .chain(self.actions.iter().flat_map(|actions| {
1513 actions.iter().map(|available| CodeActionsItem::CodeAction {
1514 excerpt_id: available.excerpt_id,
1515 action: available.action.clone(),
1516 provider: available.provider.clone(),
1517 })
1518 }))
1519 }
1520 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1521 match (&self.tasks, &self.actions) {
1522 (Some(tasks), Some(actions)) => {
1523 if index < tasks.templates.len() {
1524 tasks
1525 .templates
1526 .get(index)
1527 .cloned()
1528 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1529 } else {
1530 actions.get(index - tasks.templates.len()).map(|available| {
1531 CodeActionsItem::CodeAction {
1532 excerpt_id: available.excerpt_id,
1533 action: available.action.clone(),
1534 provider: available.provider.clone(),
1535 }
1536 })
1537 }
1538 }
1539 (Some(tasks), None) => tasks
1540 .templates
1541 .get(index)
1542 .cloned()
1543 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1544 (None, Some(actions)) => {
1545 actions
1546 .get(index)
1547 .map(|available| CodeActionsItem::CodeAction {
1548 excerpt_id: available.excerpt_id,
1549 action: available.action.clone(),
1550 provider: available.provider.clone(),
1551 })
1552 }
1553 (None, None) => None,
1554 }
1555 }
1556}
1557
1558#[allow(clippy::large_enum_variant)]
1559#[derive(Clone)]
1560enum CodeActionsItem {
1561 Task(TaskSourceKind, ResolvedTask),
1562 CodeAction {
1563 excerpt_id: ExcerptId,
1564 action: CodeAction,
1565 provider: Arc<dyn CodeActionProvider>,
1566 },
1567}
1568
1569impl CodeActionsItem {
1570 fn as_task(&self) -> Option<&ResolvedTask> {
1571 let Self::Task(_, task) = self else {
1572 return None;
1573 };
1574 Some(task)
1575 }
1576 fn as_code_action(&self) -> Option<&CodeAction> {
1577 let Self::CodeAction { action, .. } = self else {
1578 return None;
1579 };
1580 Some(action)
1581 }
1582 fn label(&self) -> String {
1583 match self {
1584 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1585 Self::Task(_, task) => task.resolved_label.clone(),
1586 }
1587 }
1588}
1589
1590struct CodeActionsMenu {
1591 actions: CodeActionContents,
1592 buffer: Model<Buffer>,
1593 selected_item: usize,
1594 scroll_handle: UniformListScrollHandle,
1595 deployed_from_indicator: Option<DisplayRow>,
1596}
1597
1598impl CodeActionsMenu {
1599 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1600 self.selected_item = 0;
1601 self.scroll_handle
1602 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1603 cx.notify()
1604 }
1605
1606 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1607 if self.selected_item > 0 {
1608 self.selected_item -= 1;
1609 } else {
1610 self.selected_item = self.actions.len() - 1;
1611 }
1612 self.scroll_handle
1613 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1614 cx.notify();
1615 }
1616
1617 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1618 if self.selected_item + 1 < self.actions.len() {
1619 self.selected_item += 1;
1620 } else {
1621 self.selected_item = 0;
1622 }
1623 self.scroll_handle
1624 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1625 cx.notify();
1626 }
1627
1628 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1629 self.selected_item = self.actions.len() - 1;
1630 self.scroll_handle
1631 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1632 cx.notify()
1633 }
1634
1635 fn visible(&self) -> bool {
1636 !self.actions.is_empty()
1637 }
1638
1639 fn render(
1640 &self,
1641 cursor_position: DisplayPoint,
1642 _style: &EditorStyle,
1643 max_height: Pixels,
1644 cx: &mut ViewContext<Editor>,
1645 ) -> (ContextMenuOrigin, AnyElement) {
1646 let actions = self.actions.clone();
1647 let selected_item = self.selected_item;
1648 let element = uniform_list(
1649 cx.view().clone(),
1650 "code_actions_menu",
1651 self.actions.len(),
1652 move |_this, range, cx| {
1653 actions
1654 .iter()
1655 .skip(range.start)
1656 .take(range.end - range.start)
1657 .enumerate()
1658 .map(|(ix, action)| {
1659 let item_ix = range.start + ix;
1660 let selected = selected_item == item_ix;
1661 let colors = cx.theme().colors();
1662 div()
1663 .px_1()
1664 .rounded_md()
1665 .text_color(colors.text)
1666 .when(selected, |style| {
1667 style
1668 .bg(colors.element_active)
1669 .text_color(colors.text_accent)
1670 })
1671 .hover(|style| {
1672 style
1673 .bg(colors.element_hover)
1674 .text_color(colors.text_accent)
1675 })
1676 .whitespace_nowrap()
1677 .when_some(action.as_code_action(), |this, action| {
1678 this.on_mouse_down(
1679 MouseButton::Left,
1680 cx.listener(move |editor, _, cx| {
1681 cx.stop_propagation();
1682 if let Some(task) = editor.confirm_code_action(
1683 &ConfirmCodeAction {
1684 item_ix: Some(item_ix),
1685 },
1686 cx,
1687 ) {
1688 task.detach_and_log_err(cx)
1689 }
1690 }),
1691 )
1692 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1693 .child(SharedString::from(action.lsp_action.title.clone()))
1694 })
1695 .when_some(action.as_task(), |this, task| {
1696 this.on_mouse_down(
1697 MouseButton::Left,
1698 cx.listener(move |editor, _, cx| {
1699 cx.stop_propagation();
1700 if let Some(task) = editor.confirm_code_action(
1701 &ConfirmCodeAction {
1702 item_ix: Some(item_ix),
1703 },
1704 cx,
1705 ) {
1706 task.detach_and_log_err(cx)
1707 }
1708 }),
1709 )
1710 .child(SharedString::from(task.resolved_label.clone()))
1711 })
1712 })
1713 .collect()
1714 },
1715 )
1716 .elevation_1(cx)
1717 .p_1()
1718 .max_h(max_height)
1719 .occlude()
1720 .track_scroll(self.scroll_handle.clone())
1721 .with_width_from_item(
1722 self.actions
1723 .iter()
1724 .enumerate()
1725 .max_by_key(|(_, action)| match action {
1726 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1727 CodeActionsItem::CodeAction { action, .. } => {
1728 action.lsp_action.title.chars().count()
1729 }
1730 })
1731 .map(|(ix, _)| ix),
1732 )
1733 .with_sizing_behavior(ListSizingBehavior::Infer)
1734 .into_any_element();
1735
1736 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1737 ContextMenuOrigin::GutterIndicator(row)
1738 } else {
1739 ContextMenuOrigin::EditorPoint(cursor_position)
1740 };
1741
1742 (cursor_position, element)
1743 }
1744}
1745
1746#[derive(Debug)]
1747struct ActiveDiagnosticGroup {
1748 primary_range: Range<Anchor>,
1749 primary_message: String,
1750 group_id: usize,
1751 blocks: HashMap<CustomBlockId, Diagnostic>,
1752 is_valid: bool,
1753}
1754
1755#[derive(Serialize, Deserialize, Clone, Debug)]
1756pub struct ClipboardSelection {
1757 pub len: usize,
1758 pub is_entire_line: bool,
1759 pub first_line_indent: u32,
1760}
1761
1762#[derive(Debug)]
1763pub(crate) struct NavigationData {
1764 cursor_anchor: Anchor,
1765 cursor_position: Point,
1766 scroll_anchor: ScrollAnchor,
1767 scroll_top_row: u32,
1768}
1769
1770#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1771pub enum GotoDefinitionKind {
1772 Symbol,
1773 Declaration,
1774 Type,
1775 Implementation,
1776}
1777
1778#[derive(Debug, Clone)]
1779enum InlayHintRefreshReason {
1780 Toggle(bool),
1781 SettingsChange(InlayHintSettings),
1782 NewLinesShown,
1783 BufferEdited(HashSet<Arc<Language>>),
1784 RefreshRequested,
1785 ExcerptsRemoved(Vec<ExcerptId>),
1786}
1787
1788impl InlayHintRefreshReason {
1789 fn description(&self) -> &'static str {
1790 match self {
1791 Self::Toggle(_) => "toggle",
1792 Self::SettingsChange(_) => "settings change",
1793 Self::NewLinesShown => "new lines shown",
1794 Self::BufferEdited(_) => "buffer edited",
1795 Self::RefreshRequested => "refresh requested",
1796 Self::ExcerptsRemoved(_) => "excerpts removed",
1797 }
1798 }
1799}
1800
1801pub(crate) struct FocusedBlock {
1802 id: BlockId,
1803 focus_handle: WeakFocusHandle,
1804}
1805
1806#[derive(Clone)]
1807struct JumpData {
1808 excerpt_id: ExcerptId,
1809 position: Point,
1810 anchor: text::Anchor,
1811 path: Option<project::ProjectPath>,
1812 line_offset_from_top: u32,
1813}
1814
1815impl Editor {
1816 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1817 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1818 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1819 Self::new(
1820 EditorMode::SingleLine { auto_width: false },
1821 buffer,
1822 None,
1823 false,
1824 cx,
1825 )
1826 }
1827
1828 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1829 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1830 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1831 Self::new(EditorMode::Full, buffer, None, false, cx)
1832 }
1833
1834 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1835 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1836 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1837 Self::new(
1838 EditorMode::SingleLine { auto_width: true },
1839 buffer,
1840 None,
1841 false,
1842 cx,
1843 )
1844 }
1845
1846 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1847 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1848 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1849 Self::new(
1850 EditorMode::AutoHeight { max_lines },
1851 buffer,
1852 None,
1853 false,
1854 cx,
1855 )
1856 }
1857
1858 pub fn for_buffer(
1859 buffer: Model<Buffer>,
1860 project: Option<Model<Project>>,
1861 cx: &mut ViewContext<Self>,
1862 ) -> Self {
1863 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1864 Self::new(EditorMode::Full, buffer, project, false, cx)
1865 }
1866
1867 pub fn for_multibuffer(
1868 buffer: Model<MultiBuffer>,
1869 project: Option<Model<Project>>,
1870 show_excerpt_controls: bool,
1871 cx: &mut ViewContext<Self>,
1872 ) -> Self {
1873 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1874 }
1875
1876 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1877 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1878 let mut clone = Self::new(
1879 self.mode,
1880 self.buffer.clone(),
1881 self.project.clone(),
1882 show_excerpt_controls,
1883 cx,
1884 );
1885 self.display_map.update(cx, |display_map, cx| {
1886 let snapshot = display_map.snapshot(cx);
1887 clone.display_map.update(cx, |display_map, cx| {
1888 display_map.set_state(&snapshot, cx);
1889 });
1890 });
1891 clone.selections.clone_state(&self.selections);
1892 clone.scroll_manager.clone_state(&self.scroll_manager);
1893 clone.searchable = self.searchable;
1894 clone
1895 }
1896
1897 pub fn new(
1898 mode: EditorMode,
1899 buffer: Model<MultiBuffer>,
1900 project: Option<Model<Project>>,
1901 show_excerpt_controls: bool,
1902 cx: &mut ViewContext<Self>,
1903 ) -> Self {
1904 let style = cx.text_style();
1905 let font_size = style.font_size.to_pixels(cx.rem_size());
1906 let editor = cx.view().downgrade();
1907 let fold_placeholder = FoldPlaceholder {
1908 constrain_width: true,
1909 render: Arc::new(move |fold_id, fold_range, cx| {
1910 let editor = editor.clone();
1911 div()
1912 .id(fold_id)
1913 .bg(cx.theme().colors().ghost_element_background)
1914 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1915 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1916 .rounded_sm()
1917 .size_full()
1918 .cursor_pointer()
1919 .child("⋯")
1920 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1921 .on_click(move |_, cx| {
1922 editor
1923 .update(cx, |editor, cx| {
1924 editor.unfold_ranges(
1925 &[fold_range.start..fold_range.end],
1926 true,
1927 false,
1928 cx,
1929 );
1930 cx.stop_propagation();
1931 })
1932 .ok();
1933 })
1934 .into_any()
1935 }),
1936 merge_adjacent: true,
1937 ..Default::default()
1938 };
1939 let display_map = cx.new_model(|cx| {
1940 DisplayMap::new(
1941 buffer.clone(),
1942 style.font(),
1943 font_size,
1944 None,
1945 show_excerpt_controls,
1946 FILE_HEADER_HEIGHT,
1947 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1948 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1949 fold_placeholder,
1950 cx,
1951 )
1952 });
1953
1954 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1955
1956 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1957
1958 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1959 .then(|| language_settings::SoftWrap::None);
1960
1961 let mut project_subscriptions = Vec::new();
1962 if mode == EditorMode::Full {
1963 if let Some(project) = project.as_ref() {
1964 if buffer.read(cx).is_singleton() {
1965 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1966 cx.emit(EditorEvent::TitleChanged);
1967 }));
1968 }
1969 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1970 if let project::Event::RefreshInlayHints = event {
1971 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1972 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1973 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1974 let focus_handle = editor.focus_handle(cx);
1975 if focus_handle.is_focused(cx) {
1976 let snapshot = buffer.read(cx).snapshot();
1977 for (range, snippet) in snippet_edits {
1978 let editor_range =
1979 language::range_from_lsp(*range).to_offset(&snapshot);
1980 editor
1981 .insert_snippet(&[editor_range], snippet.clone(), cx)
1982 .ok();
1983 }
1984 }
1985 }
1986 }
1987 }));
1988 if let Some(task_inventory) = project
1989 .read(cx)
1990 .task_store()
1991 .read(cx)
1992 .task_inventory()
1993 .cloned()
1994 {
1995 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1996 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1997 }));
1998 }
1999 }
2000 }
2001
2002 let inlay_hint_settings = inlay_hint_settings(
2003 selections.newest_anchor().head(),
2004 &buffer.read(cx).snapshot(cx),
2005 cx,
2006 );
2007 let focus_handle = cx.focus_handle();
2008 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2009 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2010 .detach();
2011 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2012 .detach();
2013 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2014
2015 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2016 Some(false)
2017 } else {
2018 None
2019 };
2020
2021 let mut code_action_providers = Vec::new();
2022 if let Some(project) = project.clone() {
2023 code_action_providers.push(Arc::new(project) as Arc<_>);
2024 }
2025
2026 let mut this = Self {
2027 focus_handle,
2028 show_cursor_when_unfocused: false,
2029 last_focused_descendant: None,
2030 buffer: buffer.clone(),
2031 display_map: display_map.clone(),
2032 selections,
2033 scroll_manager: ScrollManager::new(cx),
2034 columnar_selection_tail: None,
2035 add_selections_state: None,
2036 select_next_state: None,
2037 select_prev_state: None,
2038 selection_history: Default::default(),
2039 autoclose_regions: Default::default(),
2040 snippet_stack: Default::default(),
2041 select_larger_syntax_node_stack: Vec::new(),
2042 ime_transaction: Default::default(),
2043 active_diagnostics: None,
2044 soft_wrap_mode_override,
2045 completion_provider: project.clone().map(|project| Box::new(project) as _),
2046 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2047 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2048 project,
2049 blink_manager: blink_manager.clone(),
2050 show_local_selections: true,
2051 mode,
2052 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2053 show_gutter: mode == EditorMode::Full,
2054 show_line_numbers: None,
2055 use_relative_line_numbers: None,
2056 show_git_diff_gutter: None,
2057 show_code_actions: None,
2058 show_runnables: None,
2059 show_wrap_guides: None,
2060 show_indent_guides,
2061 placeholder_text: None,
2062 highlight_order: 0,
2063 highlighted_rows: HashMap::default(),
2064 background_highlights: Default::default(),
2065 gutter_highlights: TreeMap::default(),
2066 scrollbar_marker_state: ScrollbarMarkerState::default(),
2067 active_indent_guides_state: ActiveIndentGuidesState::default(),
2068 nav_history: None,
2069 context_menu: RwLock::new(None),
2070 mouse_context_menu: None,
2071 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2072 completion_tasks: Default::default(),
2073 signature_help_state: SignatureHelpState::default(),
2074 auto_signature_help: None,
2075 find_all_references_task_sources: Vec::new(),
2076 next_completion_id: 0,
2077 next_inlay_id: 0,
2078 code_action_providers,
2079 available_code_actions: Default::default(),
2080 code_actions_task: Default::default(),
2081 document_highlights_task: Default::default(),
2082 linked_editing_range_task: Default::default(),
2083 pending_rename: Default::default(),
2084 searchable: true,
2085 cursor_shape: EditorSettings::get_global(cx)
2086 .cursor_shape
2087 .unwrap_or_default(),
2088 current_line_highlight: None,
2089 autoindent_mode: Some(AutoindentMode::EachLine),
2090 collapse_matches: false,
2091 workspace: None,
2092 input_enabled: true,
2093 use_modal_editing: mode == EditorMode::Full,
2094 read_only: false,
2095 use_autoclose: true,
2096 use_auto_surround: true,
2097 auto_replace_emoji_shortcode: false,
2098 leader_peer_id: None,
2099 remote_id: None,
2100 hover_state: Default::default(),
2101 hovered_link_state: Default::default(),
2102 inline_completion_provider: None,
2103 active_inline_completion: None,
2104 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2105 expanded_hunks: ExpandedHunks::default(),
2106 gutter_hovered: false,
2107 pixel_position_of_newest_cursor: None,
2108 last_bounds: None,
2109 expect_bounds_change: None,
2110 gutter_dimensions: GutterDimensions::default(),
2111 style: None,
2112 show_cursor_names: false,
2113 hovered_cursors: Default::default(),
2114 next_editor_action_id: EditorActionId::default(),
2115 editor_actions: Rc::default(),
2116 show_inline_completions_override: None,
2117 enable_inline_completions: true,
2118 custom_context_menu: None,
2119 show_git_blame_gutter: false,
2120 show_git_blame_inline: false,
2121 show_selection_menu: None,
2122 show_git_blame_inline_delay_task: None,
2123 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2124 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2125 .session
2126 .restore_unsaved_buffers,
2127 blame: None,
2128 blame_subscription: None,
2129 tasks: Default::default(),
2130 _subscriptions: vec![
2131 cx.observe(&buffer, Self::on_buffer_changed),
2132 cx.subscribe(&buffer, Self::on_buffer_event),
2133 cx.observe(&display_map, Self::on_display_map_changed),
2134 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2135 cx.observe_global::<SettingsStore>(Self::settings_changed),
2136 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2137 cx.observe_window_activation(|editor, cx| {
2138 let active = cx.is_window_active();
2139 editor.blink_manager.update(cx, |blink_manager, cx| {
2140 if active {
2141 blink_manager.enable(cx);
2142 } else {
2143 blink_manager.disable(cx);
2144 }
2145 });
2146 }),
2147 ],
2148 tasks_update_task: None,
2149 linked_edit_ranges: Default::default(),
2150 previous_search_ranges: None,
2151 breadcrumb_header: None,
2152 focused_block: None,
2153 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2154 addons: HashMap::default(),
2155 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2156 text_style_refinement: None,
2157 };
2158 this.tasks_update_task = Some(this.refresh_runnables(cx));
2159 this._subscriptions.extend(project_subscriptions);
2160
2161 this.end_selection(cx);
2162 this.scroll_manager.show_scrollbar(cx);
2163
2164 if mode == EditorMode::Full {
2165 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2166 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2167
2168 if this.git_blame_inline_enabled {
2169 this.git_blame_inline_enabled = true;
2170 this.start_git_blame_inline(false, cx);
2171 }
2172 }
2173
2174 this.report_editor_event("open", None, cx);
2175 this
2176 }
2177
2178 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2179 self.mouse_context_menu
2180 .as_ref()
2181 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2182 }
2183
2184 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2185 let mut key_context = KeyContext::new_with_defaults();
2186 key_context.add("Editor");
2187 let mode = match self.mode {
2188 EditorMode::SingleLine { .. } => "single_line",
2189 EditorMode::AutoHeight { .. } => "auto_height",
2190 EditorMode::Full => "full",
2191 };
2192
2193 if EditorSettings::jupyter_enabled(cx) {
2194 key_context.add("jupyter");
2195 }
2196
2197 key_context.set("mode", mode);
2198 if self.pending_rename.is_some() {
2199 key_context.add("renaming");
2200 }
2201 if self.context_menu_visible() {
2202 match self.context_menu.read().as_ref() {
2203 Some(ContextMenu::Completions(_)) => {
2204 key_context.add("menu");
2205 key_context.add("showing_completions")
2206 }
2207 Some(ContextMenu::CodeActions(_)) => {
2208 key_context.add("menu");
2209 key_context.add("showing_code_actions")
2210 }
2211 None => {}
2212 }
2213 }
2214
2215 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2216 if !self.focus_handle(cx).contains_focused(cx)
2217 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2218 {
2219 for addon in self.addons.values() {
2220 addon.extend_key_context(&mut key_context, cx)
2221 }
2222 }
2223
2224 if let Some(extension) = self
2225 .buffer
2226 .read(cx)
2227 .as_singleton()
2228 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2229 {
2230 key_context.set("extension", extension.to_string());
2231 }
2232
2233 if self.has_active_inline_completion(cx) {
2234 key_context.add("copilot_suggestion");
2235 key_context.add("inline_completion");
2236 }
2237
2238 key_context
2239 }
2240
2241 pub fn new_file(
2242 workspace: &mut Workspace,
2243 _: &workspace::NewFile,
2244 cx: &mut ViewContext<Workspace>,
2245 ) {
2246 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2247 "Failed to create buffer",
2248 cx,
2249 |e, _| match e.error_code() {
2250 ErrorCode::RemoteUpgradeRequired => Some(format!(
2251 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2252 e.error_tag("required").unwrap_or("the latest version")
2253 )),
2254 _ => None,
2255 },
2256 );
2257 }
2258
2259 pub fn new_in_workspace(
2260 workspace: &mut Workspace,
2261 cx: &mut ViewContext<Workspace>,
2262 ) -> Task<Result<View<Editor>>> {
2263 let project = workspace.project().clone();
2264 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2265
2266 cx.spawn(|workspace, mut cx| async move {
2267 let buffer = create.await?;
2268 workspace.update(&mut cx, |workspace, cx| {
2269 let editor =
2270 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2271 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2272 editor
2273 })
2274 })
2275 }
2276
2277 fn new_file_vertical(
2278 workspace: &mut Workspace,
2279 _: &workspace::NewFileSplitVertical,
2280 cx: &mut ViewContext<Workspace>,
2281 ) {
2282 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2283 }
2284
2285 fn new_file_horizontal(
2286 workspace: &mut Workspace,
2287 _: &workspace::NewFileSplitHorizontal,
2288 cx: &mut ViewContext<Workspace>,
2289 ) {
2290 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2291 }
2292
2293 fn new_file_in_direction(
2294 workspace: &mut Workspace,
2295 direction: SplitDirection,
2296 cx: &mut ViewContext<Workspace>,
2297 ) {
2298 let project = workspace.project().clone();
2299 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2300
2301 cx.spawn(|workspace, mut cx| async move {
2302 let buffer = create.await?;
2303 workspace.update(&mut cx, move |workspace, cx| {
2304 workspace.split_item(
2305 direction,
2306 Box::new(
2307 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2308 ),
2309 cx,
2310 )
2311 })?;
2312 anyhow::Ok(())
2313 })
2314 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2315 ErrorCode::RemoteUpgradeRequired => Some(format!(
2316 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2317 e.error_tag("required").unwrap_or("the latest version")
2318 )),
2319 _ => None,
2320 });
2321 }
2322
2323 pub fn leader_peer_id(&self) -> Option<PeerId> {
2324 self.leader_peer_id
2325 }
2326
2327 pub fn buffer(&self) -> &Model<MultiBuffer> {
2328 &self.buffer
2329 }
2330
2331 pub fn workspace(&self) -> Option<View<Workspace>> {
2332 self.workspace.as_ref()?.0.upgrade()
2333 }
2334
2335 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2336 self.buffer().read(cx).title(cx)
2337 }
2338
2339 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2340 let git_blame_gutter_max_author_length = self
2341 .render_git_blame_gutter(cx)
2342 .then(|| {
2343 if let Some(blame) = self.blame.as_ref() {
2344 let max_author_length =
2345 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2346 Some(max_author_length)
2347 } else {
2348 None
2349 }
2350 })
2351 .flatten();
2352
2353 EditorSnapshot {
2354 mode: self.mode,
2355 show_gutter: self.show_gutter,
2356 show_line_numbers: self.show_line_numbers,
2357 show_git_diff_gutter: self.show_git_diff_gutter,
2358 show_code_actions: self.show_code_actions,
2359 show_runnables: self.show_runnables,
2360 git_blame_gutter_max_author_length,
2361 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2362 scroll_anchor: self.scroll_manager.anchor(),
2363 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2364 placeholder_text: self.placeholder_text.clone(),
2365 is_focused: self.focus_handle.is_focused(cx),
2366 current_line_highlight: self
2367 .current_line_highlight
2368 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2369 gutter_hovered: self.gutter_hovered,
2370 }
2371 }
2372
2373 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2374 self.buffer.read(cx).language_at(point, cx)
2375 }
2376
2377 pub fn file_at<T: ToOffset>(
2378 &self,
2379 point: T,
2380 cx: &AppContext,
2381 ) -> Option<Arc<dyn language::File>> {
2382 self.buffer.read(cx).read(cx).file_at(point).cloned()
2383 }
2384
2385 pub fn active_excerpt(
2386 &self,
2387 cx: &AppContext,
2388 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2389 self.buffer
2390 .read(cx)
2391 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2392 }
2393
2394 pub fn mode(&self) -> EditorMode {
2395 self.mode
2396 }
2397
2398 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2399 self.collaboration_hub.as_deref()
2400 }
2401
2402 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2403 self.collaboration_hub = Some(hub);
2404 }
2405
2406 pub fn set_custom_context_menu(
2407 &mut self,
2408 f: impl 'static
2409 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2410 ) {
2411 self.custom_context_menu = Some(Box::new(f))
2412 }
2413
2414 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2415 self.completion_provider = provider;
2416 }
2417
2418 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2419 self.semantics_provider.clone()
2420 }
2421
2422 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2423 self.semantics_provider = provider;
2424 }
2425
2426 pub fn set_inline_completion_provider<T>(
2427 &mut self,
2428 provider: Option<Model<T>>,
2429 cx: &mut ViewContext<Self>,
2430 ) where
2431 T: InlineCompletionProvider,
2432 {
2433 self.inline_completion_provider =
2434 provider.map(|provider| RegisteredInlineCompletionProvider {
2435 _subscription: cx.observe(&provider, |this, _, cx| {
2436 if this.focus_handle.is_focused(cx) {
2437 this.update_visible_inline_completion(cx);
2438 }
2439 }),
2440 provider: Arc::new(provider),
2441 });
2442 self.refresh_inline_completion(false, false, cx);
2443 }
2444
2445 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2446 self.placeholder_text.as_deref()
2447 }
2448
2449 pub fn set_placeholder_text(
2450 &mut self,
2451 placeholder_text: impl Into<Arc<str>>,
2452 cx: &mut ViewContext<Self>,
2453 ) {
2454 let placeholder_text = Some(placeholder_text.into());
2455 if self.placeholder_text != placeholder_text {
2456 self.placeholder_text = placeholder_text;
2457 cx.notify();
2458 }
2459 }
2460
2461 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2462 self.cursor_shape = cursor_shape;
2463
2464 // Disrupt blink for immediate user feedback that the cursor shape has changed
2465 self.blink_manager.update(cx, BlinkManager::show_cursor);
2466
2467 cx.notify();
2468 }
2469
2470 pub fn set_current_line_highlight(
2471 &mut self,
2472 current_line_highlight: Option<CurrentLineHighlight>,
2473 ) {
2474 self.current_line_highlight = current_line_highlight;
2475 }
2476
2477 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2478 self.collapse_matches = collapse_matches;
2479 }
2480
2481 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2482 if self.collapse_matches {
2483 return range.start..range.start;
2484 }
2485 range.clone()
2486 }
2487
2488 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2489 if self.display_map.read(cx).clip_at_line_ends != clip {
2490 self.display_map
2491 .update(cx, |map, _| map.clip_at_line_ends = clip);
2492 }
2493 }
2494
2495 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2496 self.input_enabled = input_enabled;
2497 }
2498
2499 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2500 self.enable_inline_completions = enabled;
2501 }
2502
2503 pub fn set_autoindent(&mut self, autoindent: bool) {
2504 if autoindent {
2505 self.autoindent_mode = Some(AutoindentMode::EachLine);
2506 } else {
2507 self.autoindent_mode = None;
2508 }
2509 }
2510
2511 pub fn read_only(&self, cx: &AppContext) -> bool {
2512 self.read_only || self.buffer.read(cx).read_only()
2513 }
2514
2515 pub fn set_read_only(&mut self, read_only: bool) {
2516 self.read_only = read_only;
2517 }
2518
2519 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2520 self.use_autoclose = autoclose;
2521 }
2522
2523 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2524 self.use_auto_surround = auto_surround;
2525 }
2526
2527 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2528 self.auto_replace_emoji_shortcode = auto_replace;
2529 }
2530
2531 pub fn toggle_inline_completions(
2532 &mut self,
2533 _: &ToggleInlineCompletions,
2534 cx: &mut ViewContext<Self>,
2535 ) {
2536 if self.show_inline_completions_override.is_some() {
2537 self.set_show_inline_completions(None, cx);
2538 } else {
2539 let cursor = self.selections.newest_anchor().head();
2540 if let Some((buffer, cursor_buffer_position)) =
2541 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2542 {
2543 let show_inline_completions =
2544 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2545 self.set_show_inline_completions(Some(show_inline_completions), cx);
2546 }
2547 }
2548 }
2549
2550 pub fn set_show_inline_completions(
2551 &mut self,
2552 show_inline_completions: Option<bool>,
2553 cx: &mut ViewContext<Self>,
2554 ) {
2555 self.show_inline_completions_override = show_inline_completions;
2556 self.refresh_inline_completion(false, true, cx);
2557 }
2558
2559 fn should_show_inline_completions(
2560 &self,
2561 buffer: &Model<Buffer>,
2562 buffer_position: language::Anchor,
2563 cx: &AppContext,
2564 ) -> bool {
2565 if !self.snippet_stack.is_empty() {
2566 return false;
2567 }
2568
2569 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2570 return false;
2571 }
2572
2573 if let Some(provider) = self.inline_completion_provider() {
2574 if let Some(show_inline_completions) = self.show_inline_completions_override {
2575 show_inline_completions
2576 } else {
2577 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2578 }
2579 } else {
2580 false
2581 }
2582 }
2583
2584 fn inline_completions_disabled_in_scope(
2585 &self,
2586 buffer: &Model<Buffer>,
2587 buffer_position: language::Anchor,
2588 cx: &AppContext,
2589 ) -> bool {
2590 let snapshot = buffer.read(cx).snapshot();
2591 let settings = snapshot.settings_at(buffer_position, cx);
2592
2593 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2594 return false;
2595 };
2596
2597 scope.override_name().map_or(false, |scope_name| {
2598 settings
2599 .inline_completions_disabled_in
2600 .iter()
2601 .any(|s| s == scope_name)
2602 })
2603 }
2604
2605 pub fn set_use_modal_editing(&mut self, to: bool) {
2606 self.use_modal_editing = to;
2607 }
2608
2609 pub fn use_modal_editing(&self) -> bool {
2610 self.use_modal_editing
2611 }
2612
2613 fn selections_did_change(
2614 &mut self,
2615 local: bool,
2616 old_cursor_position: &Anchor,
2617 show_completions: bool,
2618 cx: &mut ViewContext<Self>,
2619 ) {
2620 cx.invalidate_character_coordinates();
2621
2622 // Copy selections to primary selection buffer
2623 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2624 if local {
2625 let selections = self.selections.all::<usize>(cx);
2626 let buffer_handle = self.buffer.read(cx).read(cx);
2627
2628 let mut text = String::new();
2629 for (index, selection) in selections.iter().enumerate() {
2630 let text_for_selection = buffer_handle
2631 .text_for_range(selection.start..selection.end)
2632 .collect::<String>();
2633
2634 text.push_str(&text_for_selection);
2635 if index != selections.len() - 1 {
2636 text.push('\n');
2637 }
2638 }
2639
2640 if !text.is_empty() {
2641 cx.write_to_primary(ClipboardItem::new_string(text));
2642 }
2643 }
2644
2645 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2646 self.buffer.update(cx, |buffer, cx| {
2647 buffer.set_active_selections(
2648 &self.selections.disjoint_anchors(),
2649 self.selections.line_mode,
2650 self.cursor_shape,
2651 cx,
2652 )
2653 });
2654 }
2655 let display_map = self
2656 .display_map
2657 .update(cx, |display_map, cx| display_map.snapshot(cx));
2658 let buffer = &display_map.buffer_snapshot;
2659 self.add_selections_state = None;
2660 self.select_next_state = None;
2661 self.select_prev_state = None;
2662 self.select_larger_syntax_node_stack.clear();
2663 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2664 self.snippet_stack
2665 .invalidate(&self.selections.disjoint_anchors(), buffer);
2666 self.take_rename(false, cx);
2667
2668 let new_cursor_position = self.selections.newest_anchor().head();
2669
2670 self.push_to_nav_history(
2671 *old_cursor_position,
2672 Some(new_cursor_position.to_point(buffer)),
2673 cx,
2674 );
2675
2676 if local {
2677 let new_cursor_position = self.selections.newest_anchor().head();
2678 let mut context_menu = self.context_menu.write();
2679 let completion_menu = match context_menu.as_ref() {
2680 Some(ContextMenu::Completions(menu)) => Some(menu),
2681
2682 _ => {
2683 *context_menu = None;
2684 None
2685 }
2686 };
2687
2688 if let Some(completion_menu) = completion_menu {
2689 let cursor_position = new_cursor_position.to_offset(buffer);
2690 let (word_range, kind) =
2691 buffer.surrounding_word(completion_menu.initial_position, true);
2692 if kind == Some(CharKind::Word)
2693 && word_range.to_inclusive().contains(&cursor_position)
2694 {
2695 let mut completion_menu = completion_menu.clone();
2696 drop(context_menu);
2697
2698 let query = Self::completion_query(buffer, cursor_position);
2699 cx.spawn(move |this, mut cx| async move {
2700 completion_menu
2701 .filter(query.as_deref(), cx.background_executor().clone())
2702 .await;
2703
2704 this.update(&mut cx, |this, cx| {
2705 let mut context_menu = this.context_menu.write();
2706 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2707 return;
2708 };
2709
2710 if menu.id > completion_menu.id {
2711 return;
2712 }
2713
2714 *context_menu = Some(ContextMenu::Completions(completion_menu));
2715 drop(context_menu);
2716 cx.notify();
2717 })
2718 })
2719 .detach();
2720
2721 if show_completions {
2722 self.show_completions(&ShowCompletions { trigger: None }, cx);
2723 }
2724 } else {
2725 drop(context_menu);
2726 self.hide_context_menu(cx);
2727 }
2728 } else {
2729 drop(context_menu);
2730 }
2731
2732 hide_hover(self, cx);
2733
2734 if old_cursor_position.to_display_point(&display_map).row()
2735 != new_cursor_position.to_display_point(&display_map).row()
2736 {
2737 self.available_code_actions.take();
2738 }
2739 self.refresh_code_actions(cx);
2740 self.refresh_document_highlights(cx);
2741 refresh_matching_bracket_highlights(self, cx);
2742 self.discard_inline_completion(false, cx);
2743 linked_editing_ranges::refresh_linked_ranges(self, cx);
2744 if self.git_blame_inline_enabled {
2745 self.start_inline_blame_timer(cx);
2746 }
2747 }
2748
2749 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2750 cx.emit(EditorEvent::SelectionsChanged { local });
2751
2752 if self.selections.disjoint_anchors().len() == 1 {
2753 cx.emit(SearchEvent::ActiveMatchChanged)
2754 }
2755 cx.notify();
2756 }
2757
2758 pub fn change_selections<R>(
2759 &mut self,
2760 autoscroll: Option<Autoscroll>,
2761 cx: &mut ViewContext<Self>,
2762 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2763 ) -> R {
2764 self.change_selections_inner(autoscroll, true, cx, change)
2765 }
2766
2767 pub fn change_selections_inner<R>(
2768 &mut self,
2769 autoscroll: Option<Autoscroll>,
2770 request_completions: bool,
2771 cx: &mut ViewContext<Self>,
2772 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2773 ) -> R {
2774 let old_cursor_position = self.selections.newest_anchor().head();
2775 self.push_to_selection_history();
2776
2777 let (changed, result) = self.selections.change_with(cx, change);
2778
2779 if changed {
2780 if let Some(autoscroll) = autoscroll {
2781 self.request_autoscroll(autoscroll, cx);
2782 }
2783 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2784
2785 if self.should_open_signature_help_automatically(
2786 &old_cursor_position,
2787 self.signature_help_state.backspace_pressed(),
2788 cx,
2789 ) {
2790 self.show_signature_help(&ShowSignatureHelp, cx);
2791 }
2792 self.signature_help_state.set_backspace_pressed(false);
2793 }
2794
2795 result
2796 }
2797
2798 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2799 where
2800 I: IntoIterator<Item = (Range<S>, T)>,
2801 S: ToOffset,
2802 T: Into<Arc<str>>,
2803 {
2804 if self.read_only(cx) {
2805 return;
2806 }
2807
2808 self.buffer
2809 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2810 }
2811
2812 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2813 where
2814 I: IntoIterator<Item = (Range<S>, T)>,
2815 S: ToOffset,
2816 T: Into<Arc<str>>,
2817 {
2818 if self.read_only(cx) {
2819 return;
2820 }
2821
2822 self.buffer.update(cx, |buffer, cx| {
2823 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2824 });
2825 }
2826
2827 pub fn edit_with_block_indent<I, S, T>(
2828 &mut self,
2829 edits: I,
2830 original_indent_columns: Vec<u32>,
2831 cx: &mut ViewContext<Self>,
2832 ) where
2833 I: IntoIterator<Item = (Range<S>, T)>,
2834 S: ToOffset,
2835 T: Into<Arc<str>>,
2836 {
2837 if self.read_only(cx) {
2838 return;
2839 }
2840
2841 self.buffer.update(cx, |buffer, cx| {
2842 buffer.edit(
2843 edits,
2844 Some(AutoindentMode::Block {
2845 original_indent_columns,
2846 }),
2847 cx,
2848 )
2849 });
2850 }
2851
2852 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2853 self.hide_context_menu(cx);
2854
2855 match phase {
2856 SelectPhase::Begin {
2857 position,
2858 add,
2859 click_count,
2860 } => self.begin_selection(position, add, click_count, cx),
2861 SelectPhase::BeginColumnar {
2862 position,
2863 goal_column,
2864 reset,
2865 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2866 SelectPhase::Extend {
2867 position,
2868 click_count,
2869 } => self.extend_selection(position, click_count, cx),
2870 SelectPhase::Update {
2871 position,
2872 goal_column,
2873 scroll_delta,
2874 } => self.update_selection(position, goal_column, scroll_delta, cx),
2875 SelectPhase::End => self.end_selection(cx),
2876 }
2877 }
2878
2879 fn extend_selection(
2880 &mut self,
2881 position: DisplayPoint,
2882 click_count: usize,
2883 cx: &mut ViewContext<Self>,
2884 ) {
2885 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2886 let tail = self.selections.newest::<usize>(cx).tail();
2887 self.begin_selection(position, false, click_count, cx);
2888
2889 let position = position.to_offset(&display_map, Bias::Left);
2890 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2891
2892 let mut pending_selection = self
2893 .selections
2894 .pending_anchor()
2895 .expect("extend_selection not called with pending selection");
2896 if position >= tail {
2897 pending_selection.start = tail_anchor;
2898 } else {
2899 pending_selection.end = tail_anchor;
2900 pending_selection.reversed = true;
2901 }
2902
2903 let mut pending_mode = self.selections.pending_mode().unwrap();
2904 match &mut pending_mode {
2905 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2906 _ => {}
2907 }
2908
2909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2910 s.set_pending(pending_selection, pending_mode)
2911 });
2912 }
2913
2914 fn begin_selection(
2915 &mut self,
2916 position: DisplayPoint,
2917 add: bool,
2918 click_count: usize,
2919 cx: &mut ViewContext<Self>,
2920 ) {
2921 if !self.focus_handle.is_focused(cx) {
2922 self.last_focused_descendant = None;
2923 cx.focus(&self.focus_handle);
2924 }
2925
2926 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2927 let buffer = &display_map.buffer_snapshot;
2928 let newest_selection = self.selections.newest_anchor().clone();
2929 let position = display_map.clip_point(position, Bias::Left);
2930
2931 let start;
2932 let end;
2933 let mode;
2934 let mut auto_scroll;
2935 match click_count {
2936 1 => {
2937 start = buffer.anchor_before(position.to_point(&display_map));
2938 end = start;
2939 mode = SelectMode::Character;
2940 auto_scroll = true;
2941 }
2942 2 => {
2943 let range = movement::surrounding_word(&display_map, position);
2944 start = buffer.anchor_before(range.start.to_point(&display_map));
2945 end = buffer.anchor_before(range.end.to_point(&display_map));
2946 mode = SelectMode::Word(start..end);
2947 auto_scroll = true;
2948 }
2949 3 => {
2950 let position = display_map
2951 .clip_point(position, Bias::Left)
2952 .to_point(&display_map);
2953 let line_start = display_map.prev_line_boundary(position).0;
2954 let next_line_start = buffer.clip_point(
2955 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2956 Bias::Left,
2957 );
2958 start = buffer.anchor_before(line_start);
2959 end = buffer.anchor_before(next_line_start);
2960 mode = SelectMode::Line(start..end);
2961 auto_scroll = true;
2962 }
2963 _ => {
2964 start = buffer.anchor_before(0);
2965 end = buffer.anchor_before(buffer.len());
2966 mode = SelectMode::All;
2967 auto_scroll = false;
2968 }
2969 }
2970 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2971
2972 let point_to_delete: Option<usize> = {
2973 let selected_points: Vec<Selection<Point>> =
2974 self.selections.disjoint_in_range(start..end, cx);
2975
2976 if !add || click_count > 1 {
2977 None
2978 } else if !selected_points.is_empty() {
2979 Some(selected_points[0].id)
2980 } else {
2981 let clicked_point_already_selected =
2982 self.selections.disjoint.iter().find(|selection| {
2983 selection.start.to_point(buffer) == start.to_point(buffer)
2984 || selection.end.to_point(buffer) == end.to_point(buffer)
2985 });
2986
2987 clicked_point_already_selected.map(|selection| selection.id)
2988 }
2989 };
2990
2991 let selections_count = self.selections.count();
2992
2993 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2994 if let Some(point_to_delete) = point_to_delete {
2995 s.delete(point_to_delete);
2996
2997 if selections_count == 1 {
2998 s.set_pending_anchor_range(start..end, mode);
2999 }
3000 } else {
3001 if !add {
3002 s.clear_disjoint();
3003 } else if click_count > 1 {
3004 s.delete(newest_selection.id)
3005 }
3006
3007 s.set_pending_anchor_range(start..end, mode);
3008 }
3009 });
3010 }
3011
3012 fn begin_columnar_selection(
3013 &mut self,
3014 position: DisplayPoint,
3015 goal_column: u32,
3016 reset: bool,
3017 cx: &mut ViewContext<Self>,
3018 ) {
3019 if !self.focus_handle.is_focused(cx) {
3020 self.last_focused_descendant = None;
3021 cx.focus(&self.focus_handle);
3022 }
3023
3024 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3025
3026 if reset {
3027 let pointer_position = display_map
3028 .buffer_snapshot
3029 .anchor_before(position.to_point(&display_map));
3030
3031 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3032 s.clear_disjoint();
3033 s.set_pending_anchor_range(
3034 pointer_position..pointer_position,
3035 SelectMode::Character,
3036 );
3037 });
3038 }
3039
3040 let tail = self.selections.newest::<Point>(cx).tail();
3041 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3042
3043 if !reset {
3044 self.select_columns(
3045 tail.to_display_point(&display_map),
3046 position,
3047 goal_column,
3048 &display_map,
3049 cx,
3050 );
3051 }
3052 }
3053
3054 fn update_selection(
3055 &mut self,
3056 position: DisplayPoint,
3057 goal_column: u32,
3058 scroll_delta: gpui::Point<f32>,
3059 cx: &mut ViewContext<Self>,
3060 ) {
3061 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3062
3063 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3064 let tail = tail.to_display_point(&display_map);
3065 self.select_columns(tail, position, goal_column, &display_map, cx);
3066 } else if let Some(mut pending) = self.selections.pending_anchor() {
3067 let buffer = self.buffer.read(cx).snapshot(cx);
3068 let head;
3069 let tail;
3070 let mode = self.selections.pending_mode().unwrap();
3071 match &mode {
3072 SelectMode::Character => {
3073 head = position.to_point(&display_map);
3074 tail = pending.tail().to_point(&buffer);
3075 }
3076 SelectMode::Word(original_range) => {
3077 let original_display_range = original_range.start.to_display_point(&display_map)
3078 ..original_range.end.to_display_point(&display_map);
3079 let original_buffer_range = original_display_range.start.to_point(&display_map)
3080 ..original_display_range.end.to_point(&display_map);
3081 if movement::is_inside_word(&display_map, position)
3082 || original_display_range.contains(&position)
3083 {
3084 let word_range = movement::surrounding_word(&display_map, position);
3085 if word_range.start < original_display_range.start {
3086 head = word_range.start.to_point(&display_map);
3087 } else {
3088 head = word_range.end.to_point(&display_map);
3089 }
3090 } else {
3091 head = position.to_point(&display_map);
3092 }
3093
3094 if head <= original_buffer_range.start {
3095 tail = original_buffer_range.end;
3096 } else {
3097 tail = original_buffer_range.start;
3098 }
3099 }
3100 SelectMode::Line(original_range) => {
3101 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3102
3103 let position = display_map
3104 .clip_point(position, Bias::Left)
3105 .to_point(&display_map);
3106 let line_start = display_map.prev_line_boundary(position).0;
3107 let next_line_start = buffer.clip_point(
3108 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3109 Bias::Left,
3110 );
3111
3112 if line_start < original_range.start {
3113 head = line_start
3114 } else {
3115 head = next_line_start
3116 }
3117
3118 if head <= original_range.start {
3119 tail = original_range.end;
3120 } else {
3121 tail = original_range.start;
3122 }
3123 }
3124 SelectMode::All => {
3125 return;
3126 }
3127 };
3128
3129 if head < tail {
3130 pending.start = buffer.anchor_before(head);
3131 pending.end = buffer.anchor_before(tail);
3132 pending.reversed = true;
3133 } else {
3134 pending.start = buffer.anchor_before(tail);
3135 pending.end = buffer.anchor_before(head);
3136 pending.reversed = false;
3137 }
3138
3139 self.change_selections(None, cx, |s| {
3140 s.set_pending(pending, mode);
3141 });
3142 } else {
3143 log::error!("update_selection dispatched with no pending selection");
3144 return;
3145 }
3146
3147 self.apply_scroll_delta(scroll_delta, cx);
3148 cx.notify();
3149 }
3150
3151 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3152 self.columnar_selection_tail.take();
3153 if self.selections.pending_anchor().is_some() {
3154 let selections = self.selections.all::<usize>(cx);
3155 self.change_selections(None, cx, |s| {
3156 s.select(selections);
3157 s.clear_pending();
3158 });
3159 }
3160 }
3161
3162 fn select_columns(
3163 &mut self,
3164 tail: DisplayPoint,
3165 head: DisplayPoint,
3166 goal_column: u32,
3167 display_map: &DisplaySnapshot,
3168 cx: &mut ViewContext<Self>,
3169 ) {
3170 let start_row = cmp::min(tail.row(), head.row());
3171 let end_row = cmp::max(tail.row(), head.row());
3172 let start_column = cmp::min(tail.column(), goal_column);
3173 let end_column = cmp::max(tail.column(), goal_column);
3174 let reversed = start_column < tail.column();
3175
3176 let selection_ranges = (start_row.0..=end_row.0)
3177 .map(DisplayRow)
3178 .filter_map(|row| {
3179 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3180 let start = display_map
3181 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3182 .to_point(display_map);
3183 let end = display_map
3184 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3185 .to_point(display_map);
3186 if reversed {
3187 Some(end..start)
3188 } else {
3189 Some(start..end)
3190 }
3191 } else {
3192 None
3193 }
3194 })
3195 .collect::<Vec<_>>();
3196
3197 self.change_selections(None, cx, |s| {
3198 s.select_ranges(selection_ranges);
3199 });
3200 cx.notify();
3201 }
3202
3203 pub fn has_pending_nonempty_selection(&self) -> bool {
3204 let pending_nonempty_selection = match self.selections.pending_anchor() {
3205 Some(Selection { start, end, .. }) => start != end,
3206 None => false,
3207 };
3208
3209 pending_nonempty_selection
3210 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3211 }
3212
3213 pub fn has_pending_selection(&self) -> bool {
3214 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3215 }
3216
3217 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3218 if self.clear_expanded_diff_hunks(cx) {
3219 cx.notify();
3220 return;
3221 }
3222 if self.dismiss_menus_and_popups(true, cx) {
3223 return;
3224 }
3225
3226 if self.mode == EditorMode::Full
3227 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3228 {
3229 return;
3230 }
3231
3232 cx.propagate();
3233 }
3234
3235 pub fn dismiss_menus_and_popups(
3236 &mut self,
3237 should_report_inline_completion_event: bool,
3238 cx: &mut ViewContext<Self>,
3239 ) -> bool {
3240 if self.take_rename(false, cx).is_some() {
3241 return true;
3242 }
3243
3244 if hide_hover(self, cx) {
3245 return true;
3246 }
3247
3248 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3249 return true;
3250 }
3251
3252 if self.hide_context_menu(cx).is_some() {
3253 return true;
3254 }
3255
3256 if self.mouse_context_menu.take().is_some() {
3257 return true;
3258 }
3259
3260 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3261 return true;
3262 }
3263
3264 if self.snippet_stack.pop().is_some() {
3265 return true;
3266 }
3267
3268 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3269 self.dismiss_diagnostics(cx);
3270 return true;
3271 }
3272
3273 false
3274 }
3275
3276 fn linked_editing_ranges_for(
3277 &self,
3278 selection: Range<text::Anchor>,
3279 cx: &AppContext,
3280 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3281 if self.linked_edit_ranges.is_empty() {
3282 return None;
3283 }
3284 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3285 selection.end.buffer_id.and_then(|end_buffer_id| {
3286 if selection.start.buffer_id != Some(end_buffer_id) {
3287 return None;
3288 }
3289 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3290 let snapshot = buffer.read(cx).snapshot();
3291 self.linked_edit_ranges
3292 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3293 .map(|ranges| (ranges, snapshot, buffer))
3294 })?;
3295 use text::ToOffset as TO;
3296 // find offset from the start of current range to current cursor position
3297 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3298
3299 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3300 let start_difference = start_offset - start_byte_offset;
3301 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3302 let end_difference = end_offset - start_byte_offset;
3303 // Current range has associated linked ranges.
3304 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3305 for range in linked_ranges.iter() {
3306 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3307 let end_offset = start_offset + end_difference;
3308 let start_offset = start_offset + start_difference;
3309 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3310 continue;
3311 }
3312 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3313 if s.start.buffer_id != selection.start.buffer_id
3314 || s.end.buffer_id != selection.end.buffer_id
3315 {
3316 return false;
3317 }
3318 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3319 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3320 }) {
3321 continue;
3322 }
3323 let start = buffer_snapshot.anchor_after(start_offset);
3324 let end = buffer_snapshot.anchor_after(end_offset);
3325 linked_edits
3326 .entry(buffer.clone())
3327 .or_default()
3328 .push(start..end);
3329 }
3330 Some(linked_edits)
3331 }
3332
3333 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3334 let text: Arc<str> = text.into();
3335
3336 if self.read_only(cx) {
3337 return;
3338 }
3339
3340 let selections = self.selections.all_adjusted(cx);
3341 let mut bracket_inserted = false;
3342 let mut edits = Vec::new();
3343 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3344 let mut new_selections = Vec::with_capacity(selections.len());
3345 let mut new_autoclose_regions = Vec::new();
3346 let snapshot = self.buffer.read(cx).read(cx);
3347
3348 for (selection, autoclose_region) in
3349 self.selections_with_autoclose_regions(selections, &snapshot)
3350 {
3351 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3352 // Determine if the inserted text matches the opening or closing
3353 // bracket of any of this language's bracket pairs.
3354 let mut bracket_pair = None;
3355 let mut is_bracket_pair_start = false;
3356 let mut is_bracket_pair_end = false;
3357 if !text.is_empty() {
3358 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3359 // and they are removing the character that triggered IME popup.
3360 for (pair, enabled) in scope.brackets() {
3361 if !pair.close && !pair.surround {
3362 continue;
3363 }
3364
3365 if enabled && pair.start.ends_with(text.as_ref()) {
3366 let prefix_len = pair.start.len() - text.len();
3367 let preceding_text_matches_prefix = prefix_len == 0
3368 || (selection.start.column >= (prefix_len as u32)
3369 && snapshot.contains_str_at(
3370 Point::new(
3371 selection.start.row,
3372 selection.start.column - (prefix_len as u32),
3373 ),
3374 &pair.start[..prefix_len],
3375 ));
3376 if preceding_text_matches_prefix {
3377 bracket_pair = Some(pair.clone());
3378 is_bracket_pair_start = true;
3379 break;
3380 }
3381 }
3382 if pair.end.as_str() == text.as_ref() {
3383 bracket_pair = Some(pair.clone());
3384 is_bracket_pair_end = true;
3385 break;
3386 }
3387 }
3388 }
3389
3390 if let Some(bracket_pair) = bracket_pair {
3391 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3392 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3393 let auto_surround =
3394 self.use_auto_surround && snapshot_settings.use_auto_surround;
3395 if selection.is_empty() {
3396 if is_bracket_pair_start {
3397 // If the inserted text is a suffix of an opening bracket and the
3398 // selection is preceded by the rest of the opening bracket, then
3399 // insert the closing bracket.
3400 let following_text_allows_autoclose = snapshot
3401 .chars_at(selection.start)
3402 .next()
3403 .map_or(true, |c| scope.should_autoclose_before(c));
3404
3405 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3406 && bracket_pair.start.len() == 1
3407 {
3408 let target = bracket_pair.start.chars().next().unwrap();
3409 let current_line_count = snapshot
3410 .reversed_chars_at(selection.start)
3411 .take_while(|&c| c != '\n')
3412 .filter(|&c| c == target)
3413 .count();
3414 current_line_count % 2 == 1
3415 } else {
3416 false
3417 };
3418
3419 if autoclose
3420 && bracket_pair.close
3421 && following_text_allows_autoclose
3422 && !is_closing_quote
3423 {
3424 let anchor = snapshot.anchor_before(selection.end);
3425 new_selections.push((selection.map(|_| anchor), text.len()));
3426 new_autoclose_regions.push((
3427 anchor,
3428 text.len(),
3429 selection.id,
3430 bracket_pair.clone(),
3431 ));
3432 edits.push((
3433 selection.range(),
3434 format!("{}{}", text, bracket_pair.end).into(),
3435 ));
3436 bracket_inserted = true;
3437 continue;
3438 }
3439 }
3440
3441 if let Some(region) = autoclose_region {
3442 // If the selection is followed by an auto-inserted closing bracket,
3443 // then don't insert that closing bracket again; just move the selection
3444 // past the closing bracket.
3445 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3446 && text.as_ref() == region.pair.end.as_str();
3447 if should_skip {
3448 let anchor = snapshot.anchor_after(selection.end);
3449 new_selections
3450 .push((selection.map(|_| anchor), region.pair.end.len()));
3451 continue;
3452 }
3453 }
3454
3455 let always_treat_brackets_as_autoclosed = snapshot
3456 .settings_at(selection.start, cx)
3457 .always_treat_brackets_as_autoclosed;
3458 if always_treat_brackets_as_autoclosed
3459 && is_bracket_pair_end
3460 && snapshot.contains_str_at(selection.end, text.as_ref())
3461 {
3462 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3463 // and the inserted text is a closing bracket and the selection is followed
3464 // by the closing bracket then move the selection past the closing bracket.
3465 let anchor = snapshot.anchor_after(selection.end);
3466 new_selections.push((selection.map(|_| anchor), text.len()));
3467 continue;
3468 }
3469 }
3470 // If an opening bracket is 1 character long and is typed while
3471 // text is selected, then surround that text with the bracket pair.
3472 else if auto_surround
3473 && bracket_pair.surround
3474 && is_bracket_pair_start
3475 && bracket_pair.start.chars().count() == 1
3476 {
3477 edits.push((selection.start..selection.start, text.clone()));
3478 edits.push((
3479 selection.end..selection.end,
3480 bracket_pair.end.as_str().into(),
3481 ));
3482 bracket_inserted = true;
3483 new_selections.push((
3484 Selection {
3485 id: selection.id,
3486 start: snapshot.anchor_after(selection.start),
3487 end: snapshot.anchor_before(selection.end),
3488 reversed: selection.reversed,
3489 goal: selection.goal,
3490 },
3491 0,
3492 ));
3493 continue;
3494 }
3495 }
3496 }
3497
3498 if self.auto_replace_emoji_shortcode
3499 && selection.is_empty()
3500 && text.as_ref().ends_with(':')
3501 {
3502 if let Some(possible_emoji_short_code) =
3503 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3504 {
3505 if !possible_emoji_short_code.is_empty() {
3506 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3507 let emoji_shortcode_start = Point::new(
3508 selection.start.row,
3509 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3510 );
3511
3512 // Remove shortcode from buffer
3513 edits.push((
3514 emoji_shortcode_start..selection.start,
3515 "".to_string().into(),
3516 ));
3517 new_selections.push((
3518 Selection {
3519 id: selection.id,
3520 start: snapshot.anchor_after(emoji_shortcode_start),
3521 end: snapshot.anchor_before(selection.start),
3522 reversed: selection.reversed,
3523 goal: selection.goal,
3524 },
3525 0,
3526 ));
3527
3528 // Insert emoji
3529 let selection_start_anchor = snapshot.anchor_after(selection.start);
3530 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3531 edits.push((selection.start..selection.end, emoji.to_string().into()));
3532
3533 continue;
3534 }
3535 }
3536 }
3537 }
3538
3539 // If not handling any auto-close operation, then just replace the selected
3540 // text with the given input and move the selection to the end of the
3541 // newly inserted text.
3542 let anchor = snapshot.anchor_after(selection.end);
3543 if !self.linked_edit_ranges.is_empty() {
3544 let start_anchor = snapshot.anchor_before(selection.start);
3545
3546 let is_word_char = text.chars().next().map_or(true, |char| {
3547 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3548 classifier.is_word(char)
3549 });
3550
3551 if is_word_char {
3552 if let Some(ranges) = self
3553 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3554 {
3555 for (buffer, edits) in ranges {
3556 linked_edits
3557 .entry(buffer.clone())
3558 .or_default()
3559 .extend(edits.into_iter().map(|range| (range, text.clone())));
3560 }
3561 }
3562 }
3563 }
3564
3565 new_selections.push((selection.map(|_| anchor), 0));
3566 edits.push((selection.start..selection.end, text.clone()));
3567 }
3568
3569 drop(snapshot);
3570
3571 self.transact(cx, |this, cx| {
3572 this.buffer.update(cx, |buffer, cx| {
3573 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3574 });
3575 for (buffer, edits) in linked_edits {
3576 buffer.update(cx, |buffer, cx| {
3577 let snapshot = buffer.snapshot();
3578 let edits = edits
3579 .into_iter()
3580 .map(|(range, text)| {
3581 use text::ToPoint as TP;
3582 let end_point = TP::to_point(&range.end, &snapshot);
3583 let start_point = TP::to_point(&range.start, &snapshot);
3584 (start_point..end_point, text)
3585 })
3586 .sorted_by_key(|(range, _)| range.start)
3587 .collect::<Vec<_>>();
3588 buffer.edit(edits, None, cx);
3589 })
3590 }
3591 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3592 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3593 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3594 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3595 .zip(new_selection_deltas)
3596 .map(|(selection, delta)| Selection {
3597 id: selection.id,
3598 start: selection.start + delta,
3599 end: selection.end + delta,
3600 reversed: selection.reversed,
3601 goal: SelectionGoal::None,
3602 })
3603 .collect::<Vec<_>>();
3604
3605 let mut i = 0;
3606 for (position, delta, selection_id, pair) in new_autoclose_regions {
3607 let position = position.to_offset(&map.buffer_snapshot) + delta;
3608 let start = map.buffer_snapshot.anchor_before(position);
3609 let end = map.buffer_snapshot.anchor_after(position);
3610 while let Some(existing_state) = this.autoclose_regions.get(i) {
3611 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3612 Ordering::Less => i += 1,
3613 Ordering::Greater => break,
3614 Ordering::Equal => {
3615 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3616 Ordering::Less => i += 1,
3617 Ordering::Equal => break,
3618 Ordering::Greater => break,
3619 }
3620 }
3621 }
3622 }
3623 this.autoclose_regions.insert(
3624 i,
3625 AutocloseRegion {
3626 selection_id,
3627 range: start..end,
3628 pair,
3629 },
3630 );
3631 }
3632
3633 let had_active_inline_completion = this.has_active_inline_completion(cx);
3634 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3635 s.select(new_selections)
3636 });
3637
3638 if !bracket_inserted {
3639 if let Some(on_type_format_task) =
3640 this.trigger_on_type_formatting(text.to_string(), cx)
3641 {
3642 on_type_format_task.detach_and_log_err(cx);
3643 }
3644 }
3645
3646 let editor_settings = EditorSettings::get_global(cx);
3647 if bracket_inserted
3648 && (editor_settings.auto_signature_help
3649 || editor_settings.show_signature_help_after_edits)
3650 {
3651 this.show_signature_help(&ShowSignatureHelp, cx);
3652 }
3653
3654 let trigger_in_words = !had_active_inline_completion;
3655 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3656 linked_editing_ranges::refresh_linked_ranges(this, cx);
3657 this.refresh_inline_completion(true, false, cx);
3658 });
3659 }
3660
3661 fn find_possible_emoji_shortcode_at_position(
3662 snapshot: &MultiBufferSnapshot,
3663 position: Point,
3664 ) -> Option<String> {
3665 let mut chars = Vec::new();
3666 let mut found_colon = false;
3667 for char in snapshot.reversed_chars_at(position).take(100) {
3668 // Found a possible emoji shortcode in the middle of the buffer
3669 if found_colon {
3670 if char.is_whitespace() {
3671 chars.reverse();
3672 return Some(chars.iter().collect());
3673 }
3674 // If the previous character is not a whitespace, we are in the middle of a word
3675 // and we only want to complete the shortcode if the word is made up of other emojis
3676 let mut containing_word = String::new();
3677 for ch in snapshot
3678 .reversed_chars_at(position)
3679 .skip(chars.len() + 1)
3680 .take(100)
3681 {
3682 if ch.is_whitespace() {
3683 break;
3684 }
3685 containing_word.push(ch);
3686 }
3687 let containing_word = containing_word.chars().rev().collect::<String>();
3688 if util::word_consists_of_emojis(containing_word.as_str()) {
3689 chars.reverse();
3690 return Some(chars.iter().collect());
3691 }
3692 }
3693
3694 if char.is_whitespace() || !char.is_ascii() {
3695 return None;
3696 }
3697 if char == ':' {
3698 found_colon = true;
3699 } else {
3700 chars.push(char);
3701 }
3702 }
3703 // Found a possible emoji shortcode at the beginning of the buffer
3704 chars.reverse();
3705 Some(chars.iter().collect())
3706 }
3707
3708 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3709 self.transact(cx, |this, cx| {
3710 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3711 let selections = this.selections.all::<usize>(cx);
3712 let multi_buffer = this.buffer.read(cx);
3713 let buffer = multi_buffer.snapshot(cx);
3714 selections
3715 .iter()
3716 .map(|selection| {
3717 let start_point = selection.start.to_point(&buffer);
3718 let mut indent =
3719 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3720 indent.len = cmp::min(indent.len, start_point.column);
3721 let start = selection.start;
3722 let end = selection.end;
3723 let selection_is_empty = start == end;
3724 let language_scope = buffer.language_scope_at(start);
3725 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3726 &language_scope
3727 {
3728 let leading_whitespace_len = buffer
3729 .reversed_chars_at(start)
3730 .take_while(|c| c.is_whitespace() && *c != '\n')
3731 .map(|c| c.len_utf8())
3732 .sum::<usize>();
3733
3734 let trailing_whitespace_len = buffer
3735 .chars_at(end)
3736 .take_while(|c| c.is_whitespace() && *c != '\n')
3737 .map(|c| c.len_utf8())
3738 .sum::<usize>();
3739
3740 let insert_extra_newline =
3741 language.brackets().any(|(pair, enabled)| {
3742 let pair_start = pair.start.trim_end();
3743 let pair_end = pair.end.trim_start();
3744
3745 enabled
3746 && pair.newline
3747 && buffer.contains_str_at(
3748 end + trailing_whitespace_len,
3749 pair_end,
3750 )
3751 && buffer.contains_str_at(
3752 (start - leading_whitespace_len)
3753 .saturating_sub(pair_start.len()),
3754 pair_start,
3755 )
3756 });
3757
3758 // Comment extension on newline is allowed only for cursor selections
3759 let comment_delimiter = maybe!({
3760 if !selection_is_empty {
3761 return None;
3762 }
3763
3764 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3765 return None;
3766 }
3767
3768 let delimiters = language.line_comment_prefixes();
3769 let max_len_of_delimiter =
3770 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3771 let (snapshot, range) =
3772 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3773
3774 let mut index_of_first_non_whitespace = 0;
3775 let comment_candidate = snapshot
3776 .chars_for_range(range)
3777 .skip_while(|c| {
3778 let should_skip = c.is_whitespace();
3779 if should_skip {
3780 index_of_first_non_whitespace += 1;
3781 }
3782 should_skip
3783 })
3784 .take(max_len_of_delimiter)
3785 .collect::<String>();
3786 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3787 comment_candidate.starts_with(comment_prefix.as_ref())
3788 })?;
3789 let cursor_is_placed_after_comment_marker =
3790 index_of_first_non_whitespace + comment_prefix.len()
3791 <= start_point.column as usize;
3792 if cursor_is_placed_after_comment_marker {
3793 Some(comment_prefix.clone())
3794 } else {
3795 None
3796 }
3797 });
3798 (comment_delimiter, insert_extra_newline)
3799 } else {
3800 (None, false)
3801 };
3802
3803 let capacity_for_delimiter = comment_delimiter
3804 .as_deref()
3805 .map(str::len)
3806 .unwrap_or_default();
3807 let mut new_text =
3808 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3809 new_text.push('\n');
3810 new_text.extend(indent.chars());
3811 if let Some(delimiter) = &comment_delimiter {
3812 new_text.push_str(delimiter);
3813 }
3814 if insert_extra_newline {
3815 new_text = new_text.repeat(2);
3816 }
3817
3818 let anchor = buffer.anchor_after(end);
3819 let new_selection = selection.map(|_| anchor);
3820 (
3821 (start..end, new_text),
3822 (insert_extra_newline, new_selection),
3823 )
3824 })
3825 .unzip()
3826 };
3827
3828 this.edit_with_autoindent(edits, cx);
3829 let buffer = this.buffer.read(cx).snapshot(cx);
3830 let new_selections = selection_fixup_info
3831 .into_iter()
3832 .map(|(extra_newline_inserted, new_selection)| {
3833 let mut cursor = new_selection.end.to_point(&buffer);
3834 if extra_newline_inserted {
3835 cursor.row -= 1;
3836 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3837 }
3838 new_selection.map(|_| cursor)
3839 })
3840 .collect();
3841
3842 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3843 this.refresh_inline_completion(true, false, cx);
3844 });
3845 }
3846
3847 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3848 let buffer = self.buffer.read(cx);
3849 let snapshot = buffer.snapshot(cx);
3850
3851 let mut edits = Vec::new();
3852 let mut rows = Vec::new();
3853
3854 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3855 let cursor = selection.head();
3856 let row = cursor.row;
3857
3858 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3859
3860 let newline = "\n".to_string();
3861 edits.push((start_of_line..start_of_line, newline));
3862
3863 rows.push(row + rows_inserted as u32);
3864 }
3865
3866 self.transact(cx, |editor, cx| {
3867 editor.edit(edits, cx);
3868
3869 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3870 let mut index = 0;
3871 s.move_cursors_with(|map, _, _| {
3872 let row = rows[index];
3873 index += 1;
3874
3875 let point = Point::new(row, 0);
3876 let boundary = map.next_line_boundary(point).1;
3877 let clipped = map.clip_point(boundary, Bias::Left);
3878
3879 (clipped, SelectionGoal::None)
3880 });
3881 });
3882
3883 let mut indent_edits = Vec::new();
3884 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3885 for row in rows {
3886 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3887 for (row, indent) in indents {
3888 if indent.len == 0 {
3889 continue;
3890 }
3891
3892 let text = match indent.kind {
3893 IndentKind::Space => " ".repeat(indent.len as usize),
3894 IndentKind::Tab => "\t".repeat(indent.len as usize),
3895 };
3896 let point = Point::new(row.0, 0);
3897 indent_edits.push((point..point, text));
3898 }
3899 }
3900 editor.edit(indent_edits, cx);
3901 });
3902 }
3903
3904 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3905 let buffer = self.buffer.read(cx);
3906 let snapshot = buffer.snapshot(cx);
3907
3908 let mut edits = Vec::new();
3909 let mut rows = Vec::new();
3910 let mut rows_inserted = 0;
3911
3912 for selection in self.selections.all_adjusted(cx) {
3913 let cursor = selection.head();
3914 let row = cursor.row;
3915
3916 let point = Point::new(row + 1, 0);
3917 let start_of_line = snapshot.clip_point(point, Bias::Left);
3918
3919 let newline = "\n".to_string();
3920 edits.push((start_of_line..start_of_line, newline));
3921
3922 rows_inserted += 1;
3923 rows.push(row + rows_inserted);
3924 }
3925
3926 self.transact(cx, |editor, cx| {
3927 editor.edit(edits, cx);
3928
3929 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3930 let mut index = 0;
3931 s.move_cursors_with(|map, _, _| {
3932 let row = rows[index];
3933 index += 1;
3934
3935 let point = Point::new(row, 0);
3936 let boundary = map.next_line_boundary(point).1;
3937 let clipped = map.clip_point(boundary, Bias::Left);
3938
3939 (clipped, SelectionGoal::None)
3940 });
3941 });
3942
3943 let mut indent_edits = Vec::new();
3944 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3945 for row in rows {
3946 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3947 for (row, indent) in indents {
3948 if indent.len == 0 {
3949 continue;
3950 }
3951
3952 let text = match indent.kind {
3953 IndentKind::Space => " ".repeat(indent.len as usize),
3954 IndentKind::Tab => "\t".repeat(indent.len as usize),
3955 };
3956 let point = Point::new(row.0, 0);
3957 indent_edits.push((point..point, text));
3958 }
3959 }
3960 editor.edit(indent_edits, cx);
3961 });
3962 }
3963
3964 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3965 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3966 original_indent_columns: Vec::new(),
3967 });
3968 self.insert_with_autoindent_mode(text, autoindent, cx);
3969 }
3970
3971 fn insert_with_autoindent_mode(
3972 &mut self,
3973 text: &str,
3974 autoindent_mode: Option<AutoindentMode>,
3975 cx: &mut ViewContext<Self>,
3976 ) {
3977 if self.read_only(cx) {
3978 return;
3979 }
3980
3981 let text: Arc<str> = text.into();
3982 self.transact(cx, |this, cx| {
3983 let old_selections = this.selections.all_adjusted(cx);
3984 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3985 let anchors = {
3986 let snapshot = buffer.read(cx);
3987 old_selections
3988 .iter()
3989 .map(|s| {
3990 let anchor = snapshot.anchor_after(s.head());
3991 s.map(|_| anchor)
3992 })
3993 .collect::<Vec<_>>()
3994 };
3995 buffer.edit(
3996 old_selections
3997 .iter()
3998 .map(|s| (s.start..s.end, text.clone())),
3999 autoindent_mode,
4000 cx,
4001 );
4002 anchors
4003 });
4004
4005 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4006 s.select_anchors(selection_anchors);
4007 })
4008 });
4009 }
4010
4011 fn trigger_completion_on_input(
4012 &mut self,
4013 text: &str,
4014 trigger_in_words: bool,
4015 cx: &mut ViewContext<Self>,
4016 ) {
4017 if self.is_completion_trigger(text, trigger_in_words, cx) {
4018 self.show_completions(
4019 &ShowCompletions {
4020 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4021 },
4022 cx,
4023 );
4024 } else {
4025 self.hide_context_menu(cx);
4026 }
4027 }
4028
4029 fn is_completion_trigger(
4030 &self,
4031 text: &str,
4032 trigger_in_words: bool,
4033 cx: &mut ViewContext<Self>,
4034 ) -> bool {
4035 let position = self.selections.newest_anchor().head();
4036 let multibuffer = self.buffer.read(cx);
4037 let Some(buffer) = position
4038 .buffer_id
4039 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4040 else {
4041 return false;
4042 };
4043
4044 if let Some(completion_provider) = &self.completion_provider {
4045 completion_provider.is_completion_trigger(
4046 &buffer,
4047 position.text_anchor,
4048 text,
4049 trigger_in_words,
4050 cx,
4051 )
4052 } else {
4053 false
4054 }
4055 }
4056
4057 /// If any empty selections is touching the start of its innermost containing autoclose
4058 /// region, expand it to select the brackets.
4059 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4060 let selections = self.selections.all::<usize>(cx);
4061 let buffer = self.buffer.read(cx).read(cx);
4062 let new_selections = self
4063 .selections_with_autoclose_regions(selections, &buffer)
4064 .map(|(mut selection, region)| {
4065 if !selection.is_empty() {
4066 return selection;
4067 }
4068
4069 if let Some(region) = region {
4070 let mut range = region.range.to_offset(&buffer);
4071 if selection.start == range.start && range.start >= region.pair.start.len() {
4072 range.start -= region.pair.start.len();
4073 if buffer.contains_str_at(range.start, ®ion.pair.start)
4074 && buffer.contains_str_at(range.end, ®ion.pair.end)
4075 {
4076 range.end += region.pair.end.len();
4077 selection.start = range.start;
4078 selection.end = range.end;
4079
4080 return selection;
4081 }
4082 }
4083 }
4084
4085 let always_treat_brackets_as_autoclosed = buffer
4086 .settings_at(selection.start, cx)
4087 .always_treat_brackets_as_autoclosed;
4088
4089 if !always_treat_brackets_as_autoclosed {
4090 return selection;
4091 }
4092
4093 if let Some(scope) = buffer.language_scope_at(selection.start) {
4094 for (pair, enabled) in scope.brackets() {
4095 if !enabled || !pair.close {
4096 continue;
4097 }
4098
4099 if buffer.contains_str_at(selection.start, &pair.end) {
4100 let pair_start_len = pair.start.len();
4101 if buffer.contains_str_at(
4102 selection.start.saturating_sub(pair_start_len),
4103 &pair.start,
4104 ) {
4105 selection.start -= pair_start_len;
4106 selection.end += pair.end.len();
4107
4108 return selection;
4109 }
4110 }
4111 }
4112 }
4113
4114 selection
4115 })
4116 .collect();
4117
4118 drop(buffer);
4119 self.change_selections(None, cx, |selections| selections.select(new_selections));
4120 }
4121
4122 /// Iterate the given selections, and for each one, find the smallest surrounding
4123 /// autoclose region. This uses the ordering of the selections and the autoclose
4124 /// regions to avoid repeated comparisons.
4125 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4126 &'a self,
4127 selections: impl IntoIterator<Item = Selection<D>>,
4128 buffer: &'a MultiBufferSnapshot,
4129 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4130 let mut i = 0;
4131 let mut regions = self.autoclose_regions.as_slice();
4132 selections.into_iter().map(move |selection| {
4133 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4134
4135 let mut enclosing = None;
4136 while let Some(pair_state) = regions.get(i) {
4137 if pair_state.range.end.to_offset(buffer) < range.start {
4138 regions = ®ions[i + 1..];
4139 i = 0;
4140 } else if pair_state.range.start.to_offset(buffer) > range.end {
4141 break;
4142 } else {
4143 if pair_state.selection_id == selection.id {
4144 enclosing = Some(pair_state);
4145 }
4146 i += 1;
4147 }
4148 }
4149
4150 (selection, enclosing)
4151 })
4152 }
4153
4154 /// Remove any autoclose regions that no longer contain their selection.
4155 fn invalidate_autoclose_regions(
4156 &mut self,
4157 mut selections: &[Selection<Anchor>],
4158 buffer: &MultiBufferSnapshot,
4159 ) {
4160 self.autoclose_regions.retain(|state| {
4161 let mut i = 0;
4162 while let Some(selection) = selections.get(i) {
4163 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4164 selections = &selections[1..];
4165 continue;
4166 }
4167 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4168 break;
4169 }
4170 if selection.id == state.selection_id {
4171 return true;
4172 } else {
4173 i += 1;
4174 }
4175 }
4176 false
4177 });
4178 }
4179
4180 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4181 let offset = position.to_offset(buffer);
4182 let (word_range, kind) = buffer.surrounding_word(offset, true);
4183 if offset > word_range.start && kind == Some(CharKind::Word) {
4184 Some(
4185 buffer
4186 .text_for_range(word_range.start..offset)
4187 .collect::<String>(),
4188 )
4189 } else {
4190 None
4191 }
4192 }
4193
4194 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4195 self.refresh_inlay_hints(
4196 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4197 cx,
4198 );
4199 }
4200
4201 pub fn inlay_hints_enabled(&self) -> bool {
4202 self.inlay_hint_cache.enabled
4203 }
4204
4205 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4206 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4207 return;
4208 }
4209
4210 let reason_description = reason.description();
4211 let ignore_debounce = matches!(
4212 reason,
4213 InlayHintRefreshReason::SettingsChange(_)
4214 | InlayHintRefreshReason::Toggle(_)
4215 | InlayHintRefreshReason::ExcerptsRemoved(_)
4216 );
4217 let (invalidate_cache, required_languages) = match reason {
4218 InlayHintRefreshReason::Toggle(enabled) => {
4219 self.inlay_hint_cache.enabled = enabled;
4220 if enabled {
4221 (InvalidationStrategy::RefreshRequested, None)
4222 } else {
4223 self.inlay_hint_cache.clear();
4224 self.splice_inlays(
4225 self.visible_inlay_hints(cx)
4226 .iter()
4227 .map(|inlay| inlay.id)
4228 .collect(),
4229 Vec::new(),
4230 cx,
4231 );
4232 return;
4233 }
4234 }
4235 InlayHintRefreshReason::SettingsChange(new_settings) => {
4236 match self.inlay_hint_cache.update_settings(
4237 &self.buffer,
4238 new_settings,
4239 self.visible_inlay_hints(cx),
4240 cx,
4241 ) {
4242 ControlFlow::Break(Some(InlaySplice {
4243 to_remove,
4244 to_insert,
4245 })) => {
4246 self.splice_inlays(to_remove, to_insert, cx);
4247 return;
4248 }
4249 ControlFlow::Break(None) => return,
4250 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4251 }
4252 }
4253 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4254 if let Some(InlaySplice {
4255 to_remove,
4256 to_insert,
4257 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4258 {
4259 self.splice_inlays(to_remove, to_insert, cx);
4260 }
4261 return;
4262 }
4263 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4264 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4265 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4266 }
4267 InlayHintRefreshReason::RefreshRequested => {
4268 (InvalidationStrategy::RefreshRequested, None)
4269 }
4270 };
4271
4272 if let Some(InlaySplice {
4273 to_remove,
4274 to_insert,
4275 }) = self.inlay_hint_cache.spawn_hint_refresh(
4276 reason_description,
4277 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4278 invalidate_cache,
4279 ignore_debounce,
4280 cx,
4281 ) {
4282 self.splice_inlays(to_remove, to_insert, cx);
4283 }
4284 }
4285
4286 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4287 self.display_map
4288 .read(cx)
4289 .current_inlays()
4290 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4291 .cloned()
4292 .collect()
4293 }
4294
4295 pub fn excerpts_for_inlay_hints_query(
4296 &self,
4297 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4298 cx: &mut ViewContext<Editor>,
4299 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4300 let Some(project) = self.project.as_ref() else {
4301 return HashMap::default();
4302 };
4303 let project = project.read(cx);
4304 let multi_buffer = self.buffer().read(cx);
4305 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4306 let multi_buffer_visible_start = self
4307 .scroll_manager
4308 .anchor()
4309 .anchor
4310 .to_point(&multi_buffer_snapshot);
4311 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4312 multi_buffer_visible_start
4313 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4314 Bias::Left,
4315 );
4316 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4317 multi_buffer
4318 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4319 .into_iter()
4320 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4321 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4322 let buffer = buffer_handle.read(cx);
4323 let buffer_file = project::File::from_dyn(buffer.file())?;
4324 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4325 let worktree_entry = buffer_worktree
4326 .read(cx)
4327 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4328 if worktree_entry.is_ignored {
4329 return None;
4330 }
4331
4332 let language = buffer.language()?;
4333 if let Some(restrict_to_languages) = restrict_to_languages {
4334 if !restrict_to_languages.contains(language) {
4335 return None;
4336 }
4337 }
4338 Some((
4339 excerpt_id,
4340 (
4341 buffer_handle,
4342 buffer.version().clone(),
4343 excerpt_visible_range,
4344 ),
4345 ))
4346 })
4347 .collect()
4348 }
4349
4350 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4351 TextLayoutDetails {
4352 text_system: cx.text_system().clone(),
4353 editor_style: self.style.clone().unwrap(),
4354 rem_size: cx.rem_size(),
4355 scroll_anchor: self.scroll_manager.anchor(),
4356 visible_rows: self.visible_line_count(),
4357 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4358 }
4359 }
4360
4361 fn splice_inlays(
4362 &self,
4363 to_remove: Vec<InlayId>,
4364 to_insert: Vec<Inlay>,
4365 cx: &mut ViewContext<Self>,
4366 ) {
4367 self.display_map.update(cx, |display_map, cx| {
4368 display_map.splice_inlays(to_remove, to_insert, cx);
4369 });
4370 cx.notify();
4371 }
4372
4373 fn trigger_on_type_formatting(
4374 &self,
4375 input: String,
4376 cx: &mut ViewContext<Self>,
4377 ) -> Option<Task<Result<()>>> {
4378 if input.len() != 1 {
4379 return None;
4380 }
4381
4382 let project = self.project.as_ref()?;
4383 let position = self.selections.newest_anchor().head();
4384 let (buffer, buffer_position) = self
4385 .buffer
4386 .read(cx)
4387 .text_anchor_for_position(position, cx)?;
4388
4389 let settings = language_settings::language_settings(
4390 buffer
4391 .read(cx)
4392 .language_at(buffer_position)
4393 .map(|l| l.name()),
4394 buffer.read(cx).file(),
4395 cx,
4396 );
4397 if !settings.use_on_type_format {
4398 return None;
4399 }
4400
4401 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4402 // hence we do LSP request & edit on host side only — add formats to host's history.
4403 let push_to_lsp_host_history = true;
4404 // If this is not the host, append its history with new edits.
4405 let push_to_client_history = project.read(cx).is_via_collab();
4406
4407 let on_type_formatting = project.update(cx, |project, cx| {
4408 project.on_type_format(
4409 buffer.clone(),
4410 buffer_position,
4411 input,
4412 push_to_lsp_host_history,
4413 cx,
4414 )
4415 });
4416 Some(cx.spawn(|editor, mut cx| async move {
4417 if let Some(transaction) = on_type_formatting.await? {
4418 if push_to_client_history {
4419 buffer
4420 .update(&mut cx, |buffer, _| {
4421 buffer.push_transaction(transaction, Instant::now());
4422 })
4423 .ok();
4424 }
4425 editor.update(&mut cx, |editor, cx| {
4426 editor.refresh_document_highlights(cx);
4427 })?;
4428 }
4429 Ok(())
4430 }))
4431 }
4432
4433 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4434 if self.pending_rename.is_some() {
4435 return;
4436 }
4437
4438 let Some(provider) = self.completion_provider.as_ref() else {
4439 return;
4440 };
4441
4442 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4443 return;
4444 }
4445
4446 let position = self.selections.newest_anchor().head();
4447 let (buffer, buffer_position) =
4448 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4449 output
4450 } else {
4451 return;
4452 };
4453
4454 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4455 let is_followup_invoke = {
4456 let context_menu_state = self.context_menu.read();
4457 matches!(
4458 context_menu_state.deref(),
4459 Some(ContextMenu::Completions(_))
4460 )
4461 };
4462 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4463 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4464 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4465 CompletionTriggerKind::TRIGGER_CHARACTER
4466 }
4467
4468 _ => CompletionTriggerKind::INVOKED,
4469 };
4470 let completion_context = CompletionContext {
4471 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4472 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4473 Some(String::from(trigger))
4474 } else {
4475 None
4476 }
4477 }),
4478 trigger_kind,
4479 };
4480 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4481 let sort_completions = provider.sort_completions();
4482
4483 let id = post_inc(&mut self.next_completion_id);
4484 let task = cx.spawn(|editor, mut cx| {
4485 async move {
4486 editor.update(&mut cx, |this, _| {
4487 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4488 })?;
4489 let completions = completions.await.log_err();
4490 let menu = if let Some(completions) = completions {
4491 let mut menu = CompletionsMenu::new(
4492 id,
4493 sort_completions,
4494 position,
4495 buffer.clone(),
4496 completions.into(),
4497 );
4498 menu.filter(query.as_deref(), cx.background_executor().clone())
4499 .await;
4500
4501 if menu.matches.is_empty() {
4502 None
4503 } else {
4504 Some(menu)
4505 }
4506 } else {
4507 None
4508 };
4509
4510 editor.update(&mut cx, |editor, cx| {
4511 let mut context_menu = editor.context_menu.write();
4512 match context_menu.as_ref() {
4513 None => {}
4514
4515 Some(ContextMenu::Completions(prev_menu)) => {
4516 if prev_menu.id > id {
4517 return;
4518 }
4519 }
4520
4521 _ => return,
4522 }
4523
4524 if editor.focus_handle.is_focused(cx) && menu.is_some() {
4525 let mut menu = menu.unwrap();
4526 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
4527 *context_menu = Some(ContextMenu::Completions(menu));
4528 drop(context_menu);
4529 editor.discard_inline_completion(false, cx);
4530 cx.notify();
4531 } else if editor.completion_tasks.len() <= 1 {
4532 // If there are no more completion tasks and the last menu was
4533 // empty, we should hide it. If it was already hidden, we should
4534 // also show the copilot completion when available.
4535 drop(context_menu);
4536 if editor.hide_context_menu(cx).is_none() {
4537 editor.update_visible_inline_completion(cx);
4538 }
4539 }
4540 })?;
4541
4542 Ok::<_, anyhow::Error>(())
4543 }
4544 .log_err()
4545 });
4546
4547 self.completion_tasks.push((id, task));
4548 }
4549
4550 pub fn confirm_completion(
4551 &mut self,
4552 action: &ConfirmCompletion,
4553 cx: &mut ViewContext<Self>,
4554 ) -> Option<Task<Result<()>>> {
4555 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4556 }
4557
4558 pub fn compose_completion(
4559 &mut self,
4560 action: &ComposeCompletion,
4561 cx: &mut ViewContext<Self>,
4562 ) -> Option<Task<Result<()>>> {
4563 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4564 }
4565
4566 fn do_completion(
4567 &mut self,
4568 item_ix: Option<usize>,
4569 intent: CompletionIntent,
4570 cx: &mut ViewContext<Editor>,
4571 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4572 use language::ToOffset as _;
4573
4574 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4575 menu
4576 } else {
4577 return None;
4578 };
4579
4580 let mat = completions_menu
4581 .matches
4582 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4583 let buffer_handle = completions_menu.buffer;
4584 let completions = completions_menu.completions.read();
4585 let completion = completions.get(mat.candidate_id)?;
4586 cx.stop_propagation();
4587
4588 let snippet;
4589 let text;
4590
4591 if completion.is_snippet() {
4592 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4593 text = snippet.as_ref().unwrap().text.clone();
4594 } else {
4595 snippet = None;
4596 text = completion.new_text.clone();
4597 };
4598 let selections = self.selections.all::<usize>(cx);
4599 let buffer = buffer_handle.read(cx);
4600 let old_range = completion.old_range.to_offset(buffer);
4601 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4602
4603 let newest_selection = self.selections.newest_anchor();
4604 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4605 return None;
4606 }
4607
4608 let lookbehind = newest_selection
4609 .start
4610 .text_anchor
4611 .to_offset(buffer)
4612 .saturating_sub(old_range.start);
4613 let lookahead = old_range
4614 .end
4615 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4616 let mut common_prefix_len = old_text
4617 .bytes()
4618 .zip(text.bytes())
4619 .take_while(|(a, b)| a == b)
4620 .count();
4621
4622 let snapshot = self.buffer.read(cx).snapshot(cx);
4623 let mut range_to_replace: Option<Range<isize>> = None;
4624 let mut ranges = Vec::new();
4625 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4626 for selection in &selections {
4627 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4628 let start = selection.start.saturating_sub(lookbehind);
4629 let end = selection.end + lookahead;
4630 if selection.id == newest_selection.id {
4631 range_to_replace = Some(
4632 ((start + common_prefix_len) as isize - selection.start as isize)
4633 ..(end as isize - selection.start as isize),
4634 );
4635 }
4636 ranges.push(start + common_prefix_len..end);
4637 } else {
4638 common_prefix_len = 0;
4639 ranges.clear();
4640 ranges.extend(selections.iter().map(|s| {
4641 if s.id == newest_selection.id {
4642 range_to_replace = Some(
4643 old_range.start.to_offset_utf16(&snapshot).0 as isize
4644 - selection.start as isize
4645 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4646 - selection.start as isize,
4647 );
4648 old_range.clone()
4649 } else {
4650 s.start..s.end
4651 }
4652 }));
4653 break;
4654 }
4655 if !self.linked_edit_ranges.is_empty() {
4656 let start_anchor = snapshot.anchor_before(selection.head());
4657 let end_anchor = snapshot.anchor_after(selection.tail());
4658 if let Some(ranges) = self
4659 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4660 {
4661 for (buffer, edits) in ranges {
4662 linked_edits.entry(buffer.clone()).or_default().extend(
4663 edits
4664 .into_iter()
4665 .map(|range| (range, text[common_prefix_len..].to_owned())),
4666 );
4667 }
4668 }
4669 }
4670 }
4671 let text = &text[common_prefix_len..];
4672
4673 cx.emit(EditorEvent::InputHandled {
4674 utf16_range_to_replace: range_to_replace,
4675 text: text.into(),
4676 });
4677
4678 self.transact(cx, |this, cx| {
4679 if let Some(mut snippet) = snippet {
4680 snippet.text = text.to_string();
4681 for tabstop in snippet
4682 .tabstops
4683 .iter_mut()
4684 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4685 {
4686 tabstop.start -= common_prefix_len as isize;
4687 tabstop.end -= common_prefix_len as isize;
4688 }
4689
4690 this.insert_snippet(&ranges, snippet, cx).log_err();
4691 } else {
4692 this.buffer.update(cx, |buffer, cx| {
4693 buffer.edit(
4694 ranges.iter().map(|range| (range.clone(), text)),
4695 this.autoindent_mode.clone(),
4696 cx,
4697 );
4698 });
4699 }
4700 for (buffer, edits) in linked_edits {
4701 buffer.update(cx, |buffer, cx| {
4702 let snapshot = buffer.snapshot();
4703 let edits = edits
4704 .into_iter()
4705 .map(|(range, text)| {
4706 use text::ToPoint as TP;
4707 let end_point = TP::to_point(&range.end, &snapshot);
4708 let start_point = TP::to_point(&range.start, &snapshot);
4709 (start_point..end_point, text)
4710 })
4711 .sorted_by_key(|(range, _)| range.start)
4712 .collect::<Vec<_>>();
4713 buffer.edit(edits, None, cx);
4714 })
4715 }
4716
4717 this.refresh_inline_completion(true, false, cx);
4718 });
4719
4720 let show_new_completions_on_confirm = completion
4721 .confirm
4722 .as_ref()
4723 .map_or(false, |confirm| confirm(intent, cx));
4724 if show_new_completions_on_confirm {
4725 self.show_completions(&ShowCompletions { trigger: None }, cx);
4726 }
4727
4728 let provider = self.completion_provider.as_ref()?;
4729 let apply_edits = provider.apply_additional_edits_for_completion(
4730 buffer_handle,
4731 completion.clone(),
4732 true,
4733 cx,
4734 );
4735
4736 let editor_settings = EditorSettings::get_global(cx);
4737 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4738 // After the code completion is finished, users often want to know what signatures are needed.
4739 // so we should automatically call signature_help
4740 self.show_signature_help(&ShowSignatureHelp, cx);
4741 }
4742
4743 Some(cx.foreground_executor().spawn(async move {
4744 apply_edits.await?;
4745 Ok(())
4746 }))
4747 }
4748
4749 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4750 let mut context_menu = self.context_menu.write();
4751 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4752 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4753 // Toggle if we're selecting the same one
4754 *context_menu = None;
4755 cx.notify();
4756 return;
4757 } else {
4758 // Otherwise, clear it and start a new one
4759 *context_menu = None;
4760 cx.notify();
4761 }
4762 }
4763 drop(context_menu);
4764 let snapshot = self.snapshot(cx);
4765 let deployed_from_indicator = action.deployed_from_indicator;
4766 let mut task = self.code_actions_task.take();
4767 let action = action.clone();
4768 cx.spawn(|editor, mut cx| async move {
4769 while let Some(prev_task) = task {
4770 prev_task.await.log_err();
4771 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4772 }
4773
4774 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4775 if editor.focus_handle.is_focused(cx) {
4776 let multibuffer_point = action
4777 .deployed_from_indicator
4778 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4779 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4780 let (buffer, buffer_row) = snapshot
4781 .buffer_snapshot
4782 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4783 .and_then(|(buffer_snapshot, range)| {
4784 editor
4785 .buffer
4786 .read(cx)
4787 .buffer(buffer_snapshot.remote_id())
4788 .map(|buffer| (buffer, range.start.row))
4789 })?;
4790 let (_, code_actions) = editor
4791 .available_code_actions
4792 .clone()
4793 .and_then(|(location, code_actions)| {
4794 let snapshot = location.buffer.read(cx).snapshot();
4795 let point_range = location.range.to_point(&snapshot);
4796 let point_range = point_range.start.row..=point_range.end.row;
4797 if point_range.contains(&buffer_row) {
4798 Some((location, code_actions))
4799 } else {
4800 None
4801 }
4802 })
4803 .unzip();
4804 let buffer_id = buffer.read(cx).remote_id();
4805 let tasks = editor
4806 .tasks
4807 .get(&(buffer_id, buffer_row))
4808 .map(|t| Arc::new(t.to_owned()));
4809 if tasks.is_none() && code_actions.is_none() {
4810 return None;
4811 }
4812
4813 editor.completion_tasks.clear();
4814 editor.discard_inline_completion(false, cx);
4815 let task_context =
4816 tasks
4817 .as_ref()
4818 .zip(editor.project.clone())
4819 .map(|(tasks, project)| {
4820 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4821 });
4822
4823 Some(cx.spawn(|editor, mut cx| async move {
4824 let task_context = match task_context {
4825 Some(task_context) => task_context.await,
4826 None => None,
4827 };
4828 let resolved_tasks =
4829 tasks.zip(task_context).map(|(tasks, task_context)| {
4830 Arc::new(ResolvedTasks {
4831 templates: tasks.resolve(&task_context).collect(),
4832 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4833 multibuffer_point.row,
4834 tasks.column,
4835 )),
4836 })
4837 });
4838 let spawn_straight_away = resolved_tasks
4839 .as_ref()
4840 .map_or(false, |tasks| tasks.templates.len() == 1)
4841 && code_actions
4842 .as_ref()
4843 .map_or(true, |actions| actions.is_empty());
4844 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4845 *editor.context_menu.write() =
4846 Some(ContextMenu::CodeActions(CodeActionsMenu {
4847 buffer,
4848 actions: CodeActionContents {
4849 tasks: resolved_tasks,
4850 actions: code_actions,
4851 },
4852 selected_item: Default::default(),
4853 scroll_handle: UniformListScrollHandle::default(),
4854 deployed_from_indicator,
4855 }));
4856 if spawn_straight_away {
4857 if let Some(task) = editor.confirm_code_action(
4858 &ConfirmCodeAction { item_ix: Some(0) },
4859 cx,
4860 ) {
4861 cx.notify();
4862 return task;
4863 }
4864 }
4865 cx.notify();
4866 Task::ready(Ok(()))
4867 }) {
4868 task.await
4869 } else {
4870 Ok(())
4871 }
4872 }))
4873 } else {
4874 Some(Task::ready(Ok(())))
4875 }
4876 })?;
4877 if let Some(task) = spawned_test_task {
4878 task.await?;
4879 }
4880
4881 Ok::<_, anyhow::Error>(())
4882 })
4883 .detach_and_log_err(cx);
4884 }
4885
4886 pub fn confirm_code_action(
4887 &mut self,
4888 action: &ConfirmCodeAction,
4889 cx: &mut ViewContext<Self>,
4890 ) -> Option<Task<Result<()>>> {
4891 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4892 menu
4893 } else {
4894 return None;
4895 };
4896 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4897 let action = actions_menu.actions.get(action_ix)?;
4898 let title = action.label();
4899 let buffer = actions_menu.buffer;
4900 let workspace = self.workspace()?;
4901
4902 match action {
4903 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4904 workspace.update(cx, |workspace, cx| {
4905 workspace::tasks::schedule_resolved_task(
4906 workspace,
4907 task_source_kind,
4908 resolved_task,
4909 false,
4910 cx,
4911 );
4912
4913 Some(Task::ready(Ok(())))
4914 })
4915 }
4916 CodeActionsItem::CodeAction {
4917 excerpt_id,
4918 action,
4919 provider,
4920 } => {
4921 let apply_code_action =
4922 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4923 let workspace = workspace.downgrade();
4924 Some(cx.spawn(|editor, cx| async move {
4925 let project_transaction = apply_code_action.await?;
4926 Self::open_project_transaction(
4927 &editor,
4928 workspace,
4929 project_transaction,
4930 title,
4931 cx,
4932 )
4933 .await
4934 }))
4935 }
4936 }
4937 }
4938
4939 pub async fn open_project_transaction(
4940 this: &WeakView<Editor>,
4941 workspace: WeakView<Workspace>,
4942 transaction: ProjectTransaction,
4943 title: String,
4944 mut cx: AsyncWindowContext,
4945 ) -> Result<()> {
4946 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4947 cx.update(|cx| {
4948 entries.sort_unstable_by_key(|(buffer, _)| {
4949 buffer.read(cx).file().map(|f| f.path().clone())
4950 });
4951 })?;
4952
4953 // If the project transaction's edits are all contained within this editor, then
4954 // avoid opening a new editor to display them.
4955
4956 if let Some((buffer, transaction)) = entries.first() {
4957 if entries.len() == 1 {
4958 let excerpt = this.update(&mut cx, |editor, cx| {
4959 editor
4960 .buffer()
4961 .read(cx)
4962 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4963 })?;
4964 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4965 if excerpted_buffer == *buffer {
4966 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4967 let excerpt_range = excerpt_range.to_offset(buffer);
4968 buffer
4969 .edited_ranges_for_transaction::<usize>(transaction)
4970 .all(|range| {
4971 excerpt_range.start <= range.start
4972 && excerpt_range.end >= range.end
4973 })
4974 })?;
4975
4976 if all_edits_within_excerpt {
4977 return Ok(());
4978 }
4979 }
4980 }
4981 }
4982 } else {
4983 return Ok(());
4984 }
4985
4986 let mut ranges_to_highlight = Vec::new();
4987 let excerpt_buffer = cx.new_model(|cx| {
4988 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4989 for (buffer_handle, transaction) in &entries {
4990 let buffer = buffer_handle.read(cx);
4991 ranges_to_highlight.extend(
4992 multibuffer.push_excerpts_with_context_lines(
4993 buffer_handle.clone(),
4994 buffer
4995 .edited_ranges_for_transaction::<usize>(transaction)
4996 .collect(),
4997 DEFAULT_MULTIBUFFER_CONTEXT,
4998 cx,
4999 ),
5000 );
5001 }
5002 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5003 multibuffer
5004 })?;
5005
5006 workspace.update(&mut cx, |workspace, cx| {
5007 let project = workspace.project().clone();
5008 let editor =
5009 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5010 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5011 editor.update(cx, |editor, cx| {
5012 editor.highlight_background::<Self>(
5013 &ranges_to_highlight,
5014 |theme| theme.editor_highlighted_line_background,
5015 cx,
5016 );
5017 });
5018 })?;
5019
5020 Ok(())
5021 }
5022
5023 pub fn clear_code_action_providers(&mut self) {
5024 self.code_action_providers.clear();
5025 self.available_code_actions.take();
5026 }
5027
5028 pub fn push_code_action_provider(
5029 &mut self,
5030 provider: Arc<dyn CodeActionProvider>,
5031 cx: &mut ViewContext<Self>,
5032 ) {
5033 self.code_action_providers.push(provider);
5034 self.refresh_code_actions(cx);
5035 }
5036
5037 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5038 let buffer = self.buffer.read(cx);
5039 let newest_selection = self.selections.newest_anchor().clone();
5040 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5041 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5042 if start_buffer != end_buffer {
5043 return None;
5044 }
5045
5046 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5047 cx.background_executor()
5048 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5049 .await;
5050
5051 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5052 let providers = this.code_action_providers.clone();
5053 let tasks = this
5054 .code_action_providers
5055 .iter()
5056 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5057 .collect::<Vec<_>>();
5058 (providers, tasks)
5059 })?;
5060
5061 let mut actions = Vec::new();
5062 for (provider, provider_actions) in
5063 providers.into_iter().zip(future::join_all(tasks).await)
5064 {
5065 if let Some(provider_actions) = provider_actions.log_err() {
5066 actions.extend(provider_actions.into_iter().map(|action| {
5067 AvailableCodeAction {
5068 excerpt_id: newest_selection.start.excerpt_id,
5069 action,
5070 provider: provider.clone(),
5071 }
5072 }));
5073 }
5074 }
5075
5076 this.update(&mut cx, |this, cx| {
5077 this.available_code_actions = if actions.is_empty() {
5078 None
5079 } else {
5080 Some((
5081 Location {
5082 buffer: start_buffer,
5083 range: start..end,
5084 },
5085 actions.into(),
5086 ))
5087 };
5088 cx.notify();
5089 })
5090 }));
5091 None
5092 }
5093
5094 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5095 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5096 self.show_git_blame_inline = false;
5097
5098 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5099 cx.background_executor().timer(delay).await;
5100
5101 this.update(&mut cx, |this, cx| {
5102 this.show_git_blame_inline = true;
5103 cx.notify();
5104 })
5105 .log_err();
5106 }));
5107 }
5108 }
5109
5110 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5111 if self.pending_rename.is_some() {
5112 return None;
5113 }
5114
5115 let provider = self.semantics_provider.clone()?;
5116 let buffer = self.buffer.read(cx);
5117 let newest_selection = self.selections.newest_anchor().clone();
5118 let cursor_position = newest_selection.head();
5119 let (cursor_buffer, cursor_buffer_position) =
5120 buffer.text_anchor_for_position(cursor_position, cx)?;
5121 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5122 if cursor_buffer != tail_buffer {
5123 return None;
5124 }
5125
5126 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5127 cx.background_executor()
5128 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5129 .await;
5130
5131 let highlights = if let Some(highlights) = cx
5132 .update(|cx| {
5133 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5134 })
5135 .ok()
5136 .flatten()
5137 {
5138 highlights.await.log_err()
5139 } else {
5140 None
5141 };
5142
5143 if let Some(highlights) = highlights {
5144 this.update(&mut cx, |this, cx| {
5145 if this.pending_rename.is_some() {
5146 return;
5147 }
5148
5149 let buffer_id = cursor_position.buffer_id;
5150 let buffer = this.buffer.read(cx);
5151 if !buffer
5152 .text_anchor_for_position(cursor_position, cx)
5153 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5154 {
5155 return;
5156 }
5157
5158 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5159 let mut write_ranges = Vec::new();
5160 let mut read_ranges = Vec::new();
5161 for highlight in highlights {
5162 for (excerpt_id, excerpt_range) in
5163 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5164 {
5165 let start = highlight
5166 .range
5167 .start
5168 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5169 let end = highlight
5170 .range
5171 .end
5172 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5173 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5174 continue;
5175 }
5176
5177 let range = Anchor {
5178 buffer_id,
5179 excerpt_id,
5180 text_anchor: start,
5181 }..Anchor {
5182 buffer_id,
5183 excerpt_id,
5184 text_anchor: end,
5185 };
5186 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5187 write_ranges.push(range);
5188 } else {
5189 read_ranges.push(range);
5190 }
5191 }
5192 }
5193
5194 this.highlight_background::<DocumentHighlightRead>(
5195 &read_ranges,
5196 |theme| theme.editor_document_highlight_read_background,
5197 cx,
5198 );
5199 this.highlight_background::<DocumentHighlightWrite>(
5200 &write_ranges,
5201 |theme| theme.editor_document_highlight_write_background,
5202 cx,
5203 );
5204 cx.notify();
5205 })
5206 .log_err();
5207 }
5208 }));
5209 None
5210 }
5211
5212 pub fn refresh_inline_completion(
5213 &mut self,
5214 debounce: bool,
5215 user_requested: bool,
5216 cx: &mut ViewContext<Self>,
5217 ) -> Option<()> {
5218 let provider = self.inline_completion_provider()?;
5219 let cursor = self.selections.newest_anchor().head();
5220 let (buffer, cursor_buffer_position) =
5221 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5222
5223 if !user_requested
5224 && (!self.enable_inline_completions
5225 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5226 {
5227 self.discard_inline_completion(false, cx);
5228 return None;
5229 }
5230
5231 self.update_visible_inline_completion(cx);
5232 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5233 Some(())
5234 }
5235
5236 fn cycle_inline_completion(
5237 &mut self,
5238 direction: Direction,
5239 cx: &mut ViewContext<Self>,
5240 ) -> Option<()> {
5241 let provider = self.inline_completion_provider()?;
5242 let cursor = self.selections.newest_anchor().head();
5243 let (buffer, cursor_buffer_position) =
5244 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5245 if !self.enable_inline_completions
5246 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5247 {
5248 return None;
5249 }
5250
5251 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5252 self.update_visible_inline_completion(cx);
5253
5254 Some(())
5255 }
5256
5257 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5258 if !self.has_active_inline_completion(cx) {
5259 self.refresh_inline_completion(false, true, cx);
5260 return;
5261 }
5262
5263 self.update_visible_inline_completion(cx);
5264 }
5265
5266 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5267 self.show_cursor_names(cx);
5268 }
5269
5270 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5271 self.show_cursor_names = true;
5272 cx.notify();
5273 cx.spawn(|this, mut cx| async move {
5274 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5275 this.update(&mut cx, |this, cx| {
5276 this.show_cursor_names = false;
5277 cx.notify()
5278 })
5279 .ok()
5280 })
5281 .detach();
5282 }
5283
5284 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5285 if self.has_active_inline_completion(cx) {
5286 self.cycle_inline_completion(Direction::Next, cx);
5287 } else {
5288 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5289 if is_copilot_disabled {
5290 cx.propagate();
5291 }
5292 }
5293 }
5294
5295 pub fn previous_inline_completion(
5296 &mut self,
5297 _: &PreviousInlineCompletion,
5298 cx: &mut ViewContext<Self>,
5299 ) {
5300 if self.has_active_inline_completion(cx) {
5301 self.cycle_inline_completion(Direction::Prev, cx);
5302 } else {
5303 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5304 if is_copilot_disabled {
5305 cx.propagate();
5306 }
5307 }
5308 }
5309
5310 pub fn accept_inline_completion(
5311 &mut self,
5312 _: &AcceptInlineCompletion,
5313 cx: &mut ViewContext<Self>,
5314 ) {
5315 let Some(completion) = self.take_active_inline_completion(cx) else {
5316 return;
5317 };
5318 if let Some(provider) = self.inline_completion_provider() {
5319 provider.accept(cx);
5320 }
5321
5322 cx.emit(EditorEvent::InputHandled {
5323 utf16_range_to_replace: None,
5324 text: completion.text.to_string().into(),
5325 });
5326
5327 if let Some(range) = completion.delete_range {
5328 self.change_selections(None, cx, |s| s.select_ranges([range]))
5329 }
5330 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5331 self.refresh_inline_completion(true, true, cx);
5332 cx.notify();
5333 }
5334
5335 pub fn accept_partial_inline_completion(
5336 &mut self,
5337 _: &AcceptPartialInlineCompletion,
5338 cx: &mut ViewContext<Self>,
5339 ) {
5340 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5341 if let Some(completion) = self.take_active_inline_completion(cx) {
5342 let mut partial_completion = completion
5343 .text
5344 .chars()
5345 .by_ref()
5346 .take_while(|c| c.is_alphabetic())
5347 .collect::<String>();
5348 if partial_completion.is_empty() {
5349 partial_completion = completion
5350 .text
5351 .chars()
5352 .by_ref()
5353 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5354 .collect::<String>();
5355 }
5356
5357 cx.emit(EditorEvent::InputHandled {
5358 utf16_range_to_replace: None,
5359 text: partial_completion.clone().into(),
5360 });
5361
5362 if let Some(range) = completion.delete_range {
5363 self.change_selections(None, cx, |s| s.select_ranges([range]))
5364 }
5365 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5366
5367 self.refresh_inline_completion(true, true, cx);
5368 cx.notify();
5369 }
5370 }
5371 }
5372
5373 fn discard_inline_completion(
5374 &mut self,
5375 should_report_inline_completion_event: bool,
5376 cx: &mut ViewContext<Self>,
5377 ) -> bool {
5378 if let Some(provider) = self.inline_completion_provider() {
5379 provider.discard(should_report_inline_completion_event, cx);
5380 }
5381
5382 self.take_active_inline_completion(cx).is_some()
5383 }
5384
5385 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5386 if let Some(completion) = self.active_inline_completion.as_ref() {
5387 let buffer = self.buffer.read(cx).read(cx);
5388 completion.position.is_valid(&buffer)
5389 } else {
5390 false
5391 }
5392 }
5393
5394 fn take_active_inline_completion(
5395 &mut self,
5396 cx: &mut ViewContext<Self>,
5397 ) -> Option<CompletionState> {
5398 let completion = self.active_inline_completion.take()?;
5399 let render_inlay_ids = completion.render_inlay_ids.clone();
5400 self.display_map.update(cx, |map, cx| {
5401 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5402 });
5403 let buffer = self.buffer.read(cx).read(cx);
5404
5405 if completion.position.is_valid(&buffer) {
5406 Some(completion)
5407 } else {
5408 None
5409 }
5410 }
5411
5412 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5413 let selection = self.selections.newest_anchor();
5414 let cursor = selection.head();
5415
5416 let excerpt_id = cursor.excerpt_id;
5417
5418 if self.context_menu.read().is_none()
5419 && self.completion_tasks.is_empty()
5420 && selection.start == selection.end
5421 {
5422 if let Some(provider) = self.inline_completion_provider() {
5423 if let Some((buffer, cursor_buffer_position)) =
5424 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5425 {
5426 if let Some(proposal) =
5427 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5428 {
5429 let mut to_remove = Vec::new();
5430 if let Some(completion) = self.active_inline_completion.take() {
5431 to_remove.extend(completion.render_inlay_ids.iter());
5432 }
5433
5434 let to_add = proposal
5435 .inlays
5436 .iter()
5437 .filter_map(|inlay| {
5438 let snapshot = self.buffer.read(cx).snapshot(cx);
5439 let id = post_inc(&mut self.next_inlay_id);
5440 match inlay {
5441 InlayProposal::Hint(position, hint) => {
5442 let position =
5443 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5444 Some(Inlay::hint(id, position, hint))
5445 }
5446 InlayProposal::Suggestion(position, text) => {
5447 let position =
5448 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5449 Some(Inlay::suggestion(id, position, text.clone()))
5450 }
5451 }
5452 })
5453 .collect_vec();
5454
5455 self.active_inline_completion = Some(CompletionState {
5456 position: cursor,
5457 text: proposal.text,
5458 delete_range: proposal.delete_range.and_then(|range| {
5459 let snapshot = self.buffer.read(cx).snapshot(cx);
5460 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5461 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5462 Some(start?..end?)
5463 }),
5464 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5465 });
5466
5467 self.display_map
5468 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5469
5470 cx.notify();
5471 return;
5472 }
5473 }
5474 }
5475 }
5476
5477 self.discard_inline_completion(false, cx);
5478 }
5479
5480 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5481 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5482 }
5483
5484 fn render_code_actions_indicator(
5485 &self,
5486 _style: &EditorStyle,
5487 row: DisplayRow,
5488 is_active: bool,
5489 cx: &mut ViewContext<Self>,
5490 ) -> Option<IconButton> {
5491 if self.available_code_actions.is_some() {
5492 Some(
5493 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5494 .shape(ui::IconButtonShape::Square)
5495 .icon_size(IconSize::XSmall)
5496 .icon_color(Color::Muted)
5497 .selected(is_active)
5498 .tooltip({
5499 let focus_handle = self.focus_handle.clone();
5500 move |cx| {
5501 Tooltip::for_action_in(
5502 "Toggle Code Actions",
5503 &ToggleCodeActions {
5504 deployed_from_indicator: None,
5505 },
5506 &focus_handle,
5507 cx,
5508 )
5509 }
5510 })
5511 .on_click(cx.listener(move |editor, _e, cx| {
5512 editor.focus(cx);
5513 editor.toggle_code_actions(
5514 &ToggleCodeActions {
5515 deployed_from_indicator: Some(row),
5516 },
5517 cx,
5518 );
5519 })),
5520 )
5521 } else {
5522 None
5523 }
5524 }
5525
5526 fn clear_tasks(&mut self) {
5527 self.tasks.clear()
5528 }
5529
5530 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5531 if self.tasks.insert(key, value).is_some() {
5532 // This case should hopefully be rare, but just in case...
5533 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5534 }
5535 }
5536
5537 fn build_tasks_context(
5538 project: &Model<Project>,
5539 buffer: &Model<Buffer>,
5540 buffer_row: u32,
5541 tasks: &Arc<RunnableTasks>,
5542 cx: &mut ViewContext<Self>,
5543 ) -> Task<Option<task::TaskContext>> {
5544 let position = Point::new(buffer_row, tasks.column);
5545 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5546 let location = Location {
5547 buffer: buffer.clone(),
5548 range: range_start..range_start,
5549 };
5550 // Fill in the environmental variables from the tree-sitter captures
5551 let mut captured_task_variables = TaskVariables::default();
5552 for (capture_name, value) in tasks.extra_variables.clone() {
5553 captured_task_variables.insert(
5554 task::VariableName::Custom(capture_name.into()),
5555 value.clone(),
5556 );
5557 }
5558 project.update(cx, |project, cx| {
5559 project.task_store().update(cx, |task_store, cx| {
5560 task_store.task_context_for_location(captured_task_variables, location, cx)
5561 })
5562 })
5563 }
5564
5565 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5566 let Some((workspace, _)) = self.workspace.clone() else {
5567 return;
5568 };
5569 let Some(project) = self.project.clone() else {
5570 return;
5571 };
5572
5573 // Try to find a closest, enclosing node using tree-sitter that has a
5574 // task
5575 let Some((buffer, buffer_row, tasks)) = self
5576 .find_enclosing_node_task(cx)
5577 // Or find the task that's closest in row-distance.
5578 .or_else(|| self.find_closest_task(cx))
5579 else {
5580 return;
5581 };
5582
5583 let reveal_strategy = action.reveal;
5584 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5585 cx.spawn(|_, mut cx| async move {
5586 let context = task_context.await?;
5587 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5588
5589 let resolved = resolved_task.resolved.as_mut()?;
5590 resolved.reveal = reveal_strategy;
5591
5592 workspace
5593 .update(&mut cx, |workspace, cx| {
5594 workspace::tasks::schedule_resolved_task(
5595 workspace,
5596 task_source_kind,
5597 resolved_task,
5598 false,
5599 cx,
5600 );
5601 })
5602 .ok()
5603 })
5604 .detach();
5605 }
5606
5607 fn find_closest_task(
5608 &mut self,
5609 cx: &mut ViewContext<Self>,
5610 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5611 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5612
5613 let ((buffer_id, row), tasks) = self
5614 .tasks
5615 .iter()
5616 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5617
5618 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5619 let tasks = Arc::new(tasks.to_owned());
5620 Some((buffer, *row, tasks))
5621 }
5622
5623 fn find_enclosing_node_task(
5624 &mut self,
5625 cx: &mut ViewContext<Self>,
5626 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5627 let snapshot = self.buffer.read(cx).snapshot(cx);
5628 let offset = self.selections.newest::<usize>(cx).head();
5629 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5630 let buffer_id = excerpt.buffer().remote_id();
5631
5632 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5633 let mut cursor = layer.node().walk();
5634
5635 while cursor.goto_first_child_for_byte(offset).is_some() {
5636 if cursor.node().end_byte() == offset {
5637 cursor.goto_next_sibling();
5638 }
5639 }
5640
5641 // Ascend to the smallest ancestor that contains the range and has a task.
5642 loop {
5643 let node = cursor.node();
5644 let node_range = node.byte_range();
5645 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5646
5647 // Check if this node contains our offset
5648 if node_range.start <= offset && node_range.end >= offset {
5649 // If it contains offset, check for task
5650 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5651 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5652 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5653 }
5654 }
5655
5656 if !cursor.goto_parent() {
5657 break;
5658 }
5659 }
5660 None
5661 }
5662
5663 fn render_run_indicator(
5664 &self,
5665 _style: &EditorStyle,
5666 is_active: bool,
5667 row: DisplayRow,
5668 cx: &mut ViewContext<Self>,
5669 ) -> IconButton {
5670 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5671 .shape(ui::IconButtonShape::Square)
5672 .icon_size(IconSize::XSmall)
5673 .icon_color(Color::Muted)
5674 .selected(is_active)
5675 .on_click(cx.listener(move |editor, _e, cx| {
5676 editor.focus(cx);
5677 editor.toggle_code_actions(
5678 &ToggleCodeActions {
5679 deployed_from_indicator: Some(row),
5680 },
5681 cx,
5682 );
5683 }))
5684 }
5685
5686 pub fn context_menu_visible(&self) -> bool {
5687 self.context_menu
5688 .read()
5689 .as_ref()
5690 .map_or(false, |menu| menu.visible())
5691 }
5692
5693 fn render_context_menu(
5694 &self,
5695 cursor_position: DisplayPoint,
5696 style: &EditorStyle,
5697 max_height: Pixels,
5698 cx: &mut ViewContext<Editor>,
5699 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5700 self.context_menu.read().as_ref().map(|menu| {
5701 menu.render(
5702 cursor_position,
5703 style,
5704 max_height,
5705 self.workspace.as_ref().map(|(w, _)| w.clone()),
5706 cx,
5707 )
5708 })
5709 }
5710
5711 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5712 cx.notify();
5713 self.completion_tasks.clear();
5714 let context_menu = self.context_menu.write().take();
5715 if context_menu.is_some() {
5716 self.update_visible_inline_completion(cx);
5717 }
5718 context_menu
5719 }
5720
5721 fn show_snippet_choices(
5722 &mut self,
5723 choices: &Vec<String>,
5724 selection: Range<Anchor>,
5725 cx: &mut ViewContext<Self>,
5726 ) {
5727 if selection.start.buffer_id.is_none() {
5728 return;
5729 }
5730 let buffer_id = selection.start.buffer_id.unwrap();
5731 let buffer = self.buffer().read(cx).buffer(buffer_id);
5732 let id = post_inc(&mut self.next_completion_id);
5733
5734 if let Some(buffer) = buffer {
5735 *self.context_menu.write() = Some(ContextMenu::Completions(
5736 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5737 .suppress_documentation_resolution(),
5738 ));
5739 }
5740 }
5741
5742 pub fn insert_snippet(
5743 &mut self,
5744 insertion_ranges: &[Range<usize>],
5745 snippet: Snippet,
5746 cx: &mut ViewContext<Self>,
5747 ) -> Result<()> {
5748 struct Tabstop<T> {
5749 is_end_tabstop: bool,
5750 ranges: Vec<Range<T>>,
5751 choices: Option<Vec<String>>,
5752 }
5753
5754 let tabstops = self.buffer.update(cx, |buffer, cx| {
5755 let snippet_text: Arc<str> = snippet.text.clone().into();
5756 buffer.edit(
5757 insertion_ranges
5758 .iter()
5759 .cloned()
5760 .map(|range| (range, snippet_text.clone())),
5761 Some(AutoindentMode::EachLine),
5762 cx,
5763 );
5764
5765 let snapshot = &*buffer.read(cx);
5766 let snippet = &snippet;
5767 snippet
5768 .tabstops
5769 .iter()
5770 .map(|tabstop| {
5771 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5772 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5773 });
5774 let mut tabstop_ranges = tabstop
5775 .ranges
5776 .iter()
5777 .flat_map(|tabstop_range| {
5778 let mut delta = 0_isize;
5779 insertion_ranges.iter().map(move |insertion_range| {
5780 let insertion_start = insertion_range.start as isize + delta;
5781 delta +=
5782 snippet.text.len() as isize - insertion_range.len() as isize;
5783
5784 let start = ((insertion_start + tabstop_range.start) as usize)
5785 .min(snapshot.len());
5786 let end = ((insertion_start + tabstop_range.end) as usize)
5787 .min(snapshot.len());
5788 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5789 })
5790 })
5791 .collect::<Vec<_>>();
5792 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5793
5794 Tabstop {
5795 is_end_tabstop,
5796 ranges: tabstop_ranges,
5797 choices: tabstop.choices.clone(),
5798 }
5799 })
5800 .collect::<Vec<_>>()
5801 });
5802 if let Some(tabstop) = tabstops.first() {
5803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5804 s.select_ranges(tabstop.ranges.iter().cloned());
5805 });
5806
5807 if let Some(choices) = &tabstop.choices {
5808 if let Some(selection) = tabstop.ranges.first() {
5809 self.show_snippet_choices(choices, selection.clone(), cx)
5810 }
5811 }
5812
5813 // If we're already at the last tabstop and it's at the end of the snippet,
5814 // we're done, we don't need to keep the state around.
5815 if !tabstop.is_end_tabstop {
5816 let choices = tabstops
5817 .iter()
5818 .map(|tabstop| tabstop.choices.clone())
5819 .collect();
5820
5821 let ranges = tabstops
5822 .into_iter()
5823 .map(|tabstop| tabstop.ranges)
5824 .collect::<Vec<_>>();
5825
5826 self.snippet_stack.push(SnippetState {
5827 active_index: 0,
5828 ranges,
5829 choices,
5830 });
5831 }
5832
5833 // Check whether the just-entered snippet ends with an auto-closable bracket.
5834 if self.autoclose_regions.is_empty() {
5835 let snapshot = self.buffer.read(cx).snapshot(cx);
5836 for selection in &mut self.selections.all::<Point>(cx) {
5837 let selection_head = selection.head();
5838 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5839 continue;
5840 };
5841
5842 let mut bracket_pair = None;
5843 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5844 let prev_chars = snapshot
5845 .reversed_chars_at(selection_head)
5846 .collect::<String>();
5847 for (pair, enabled) in scope.brackets() {
5848 if enabled
5849 && pair.close
5850 && prev_chars.starts_with(pair.start.as_str())
5851 && next_chars.starts_with(pair.end.as_str())
5852 {
5853 bracket_pair = Some(pair.clone());
5854 break;
5855 }
5856 }
5857 if let Some(pair) = bracket_pair {
5858 let start = snapshot.anchor_after(selection_head);
5859 let end = snapshot.anchor_after(selection_head);
5860 self.autoclose_regions.push(AutocloseRegion {
5861 selection_id: selection.id,
5862 range: start..end,
5863 pair,
5864 });
5865 }
5866 }
5867 }
5868 }
5869 Ok(())
5870 }
5871
5872 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5873 self.move_to_snippet_tabstop(Bias::Right, cx)
5874 }
5875
5876 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5877 self.move_to_snippet_tabstop(Bias::Left, cx)
5878 }
5879
5880 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5881 if let Some(mut snippet) = self.snippet_stack.pop() {
5882 match bias {
5883 Bias::Left => {
5884 if snippet.active_index > 0 {
5885 snippet.active_index -= 1;
5886 } else {
5887 self.snippet_stack.push(snippet);
5888 return false;
5889 }
5890 }
5891 Bias::Right => {
5892 if snippet.active_index + 1 < snippet.ranges.len() {
5893 snippet.active_index += 1;
5894 } else {
5895 self.snippet_stack.push(snippet);
5896 return false;
5897 }
5898 }
5899 }
5900 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5901 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5902 s.select_anchor_ranges(current_ranges.iter().cloned())
5903 });
5904
5905 if let Some(choices) = &snippet.choices[snippet.active_index] {
5906 if let Some(selection) = current_ranges.first() {
5907 self.show_snippet_choices(&choices, selection.clone(), cx);
5908 }
5909 }
5910
5911 // If snippet state is not at the last tabstop, push it back on the stack
5912 if snippet.active_index + 1 < snippet.ranges.len() {
5913 self.snippet_stack.push(snippet);
5914 }
5915 return true;
5916 }
5917 }
5918
5919 false
5920 }
5921
5922 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5923 self.transact(cx, |this, cx| {
5924 this.select_all(&SelectAll, cx);
5925 this.insert("", cx);
5926 });
5927 }
5928
5929 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5930 self.transact(cx, |this, cx| {
5931 this.select_autoclose_pair(cx);
5932 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5933 if !this.linked_edit_ranges.is_empty() {
5934 let selections = this.selections.all::<MultiBufferPoint>(cx);
5935 let snapshot = this.buffer.read(cx).snapshot(cx);
5936
5937 for selection in selections.iter() {
5938 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5939 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5940 if selection_start.buffer_id != selection_end.buffer_id {
5941 continue;
5942 }
5943 if let Some(ranges) =
5944 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5945 {
5946 for (buffer, entries) in ranges {
5947 linked_ranges.entry(buffer).or_default().extend(entries);
5948 }
5949 }
5950 }
5951 }
5952
5953 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5954 if !this.selections.line_mode {
5955 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5956 for selection in &mut selections {
5957 if selection.is_empty() {
5958 let old_head = selection.head();
5959 let mut new_head =
5960 movement::left(&display_map, old_head.to_display_point(&display_map))
5961 .to_point(&display_map);
5962 if let Some((buffer, line_buffer_range)) = display_map
5963 .buffer_snapshot
5964 .buffer_line_for_row(MultiBufferRow(old_head.row))
5965 {
5966 let indent_size =
5967 buffer.indent_size_for_line(line_buffer_range.start.row);
5968 let indent_len = match indent_size.kind {
5969 IndentKind::Space => {
5970 buffer.settings_at(line_buffer_range.start, cx).tab_size
5971 }
5972 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5973 };
5974 if old_head.column <= indent_size.len && old_head.column > 0 {
5975 let indent_len = indent_len.get();
5976 new_head = cmp::min(
5977 new_head,
5978 MultiBufferPoint::new(
5979 old_head.row,
5980 ((old_head.column - 1) / indent_len) * indent_len,
5981 ),
5982 );
5983 }
5984 }
5985
5986 selection.set_head(new_head, SelectionGoal::None);
5987 }
5988 }
5989 }
5990
5991 this.signature_help_state.set_backspace_pressed(true);
5992 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5993 this.insert("", cx);
5994 let empty_str: Arc<str> = Arc::from("");
5995 for (buffer, edits) in linked_ranges {
5996 let snapshot = buffer.read(cx).snapshot();
5997 use text::ToPoint as TP;
5998
5999 let edits = edits
6000 .into_iter()
6001 .map(|range| {
6002 let end_point = TP::to_point(&range.end, &snapshot);
6003 let mut start_point = TP::to_point(&range.start, &snapshot);
6004
6005 if end_point == start_point {
6006 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6007 .saturating_sub(1);
6008 start_point = TP::to_point(&offset, &snapshot);
6009 };
6010
6011 (start_point..end_point, empty_str.clone())
6012 })
6013 .sorted_by_key(|(range, _)| range.start)
6014 .collect::<Vec<_>>();
6015 buffer.update(cx, |this, cx| {
6016 this.edit(edits, None, cx);
6017 })
6018 }
6019 this.refresh_inline_completion(true, false, cx);
6020 linked_editing_ranges::refresh_linked_ranges(this, cx);
6021 });
6022 }
6023
6024 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6025 self.transact(cx, |this, cx| {
6026 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6027 let line_mode = s.line_mode;
6028 s.move_with(|map, selection| {
6029 if selection.is_empty() && !line_mode {
6030 let cursor = movement::right(map, selection.head());
6031 selection.end = cursor;
6032 selection.reversed = true;
6033 selection.goal = SelectionGoal::None;
6034 }
6035 })
6036 });
6037 this.insert("", cx);
6038 this.refresh_inline_completion(true, false, cx);
6039 });
6040 }
6041
6042 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6043 if self.move_to_prev_snippet_tabstop(cx) {
6044 return;
6045 }
6046
6047 self.outdent(&Outdent, cx);
6048 }
6049
6050 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6051 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6052 return;
6053 }
6054
6055 let mut selections = self.selections.all_adjusted(cx);
6056 let buffer = self.buffer.read(cx);
6057 let snapshot = buffer.snapshot(cx);
6058 let rows_iter = selections.iter().map(|s| s.head().row);
6059 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6060
6061 let mut edits = Vec::new();
6062 let mut prev_edited_row = 0;
6063 let mut row_delta = 0;
6064 for selection in &mut selections {
6065 if selection.start.row != prev_edited_row {
6066 row_delta = 0;
6067 }
6068 prev_edited_row = selection.end.row;
6069
6070 // If the selection is non-empty, then increase the indentation of the selected lines.
6071 if !selection.is_empty() {
6072 row_delta =
6073 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6074 continue;
6075 }
6076
6077 // If the selection is empty and the cursor is in the leading whitespace before the
6078 // suggested indentation, then auto-indent the line.
6079 let cursor = selection.head();
6080 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6081 if let Some(suggested_indent) =
6082 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6083 {
6084 if cursor.column < suggested_indent.len
6085 && cursor.column <= current_indent.len
6086 && current_indent.len <= suggested_indent.len
6087 {
6088 selection.start = Point::new(cursor.row, suggested_indent.len);
6089 selection.end = selection.start;
6090 if row_delta == 0 {
6091 edits.extend(Buffer::edit_for_indent_size_adjustment(
6092 cursor.row,
6093 current_indent,
6094 suggested_indent,
6095 ));
6096 row_delta = suggested_indent.len - current_indent.len;
6097 }
6098 continue;
6099 }
6100 }
6101
6102 // Otherwise, insert a hard or soft tab.
6103 let settings = buffer.settings_at(cursor, cx);
6104 let tab_size = if settings.hard_tabs {
6105 IndentSize::tab()
6106 } else {
6107 let tab_size = settings.tab_size.get();
6108 let char_column = snapshot
6109 .text_for_range(Point::new(cursor.row, 0)..cursor)
6110 .flat_map(str::chars)
6111 .count()
6112 + row_delta as usize;
6113 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6114 IndentSize::spaces(chars_to_next_tab_stop)
6115 };
6116 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6117 selection.end = selection.start;
6118 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6119 row_delta += tab_size.len;
6120 }
6121
6122 self.transact(cx, |this, cx| {
6123 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6124 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6125 this.refresh_inline_completion(true, false, cx);
6126 });
6127 }
6128
6129 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6130 if self.read_only(cx) {
6131 return;
6132 }
6133 let mut selections = self.selections.all::<Point>(cx);
6134 let mut prev_edited_row = 0;
6135 let mut row_delta = 0;
6136 let mut edits = Vec::new();
6137 let buffer = self.buffer.read(cx);
6138 let snapshot = buffer.snapshot(cx);
6139 for selection in &mut selections {
6140 if selection.start.row != prev_edited_row {
6141 row_delta = 0;
6142 }
6143 prev_edited_row = selection.end.row;
6144
6145 row_delta =
6146 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6147 }
6148
6149 self.transact(cx, |this, cx| {
6150 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6151 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6152 });
6153 }
6154
6155 fn indent_selection(
6156 buffer: &MultiBuffer,
6157 snapshot: &MultiBufferSnapshot,
6158 selection: &mut Selection<Point>,
6159 edits: &mut Vec<(Range<Point>, String)>,
6160 delta_for_start_row: u32,
6161 cx: &AppContext,
6162 ) -> u32 {
6163 let settings = buffer.settings_at(selection.start, cx);
6164 let tab_size = settings.tab_size.get();
6165 let indent_kind = if settings.hard_tabs {
6166 IndentKind::Tab
6167 } else {
6168 IndentKind::Space
6169 };
6170 let mut start_row = selection.start.row;
6171 let mut end_row = selection.end.row + 1;
6172
6173 // If a selection ends at the beginning of a line, don't indent
6174 // that last line.
6175 if selection.end.column == 0 && selection.end.row > selection.start.row {
6176 end_row -= 1;
6177 }
6178
6179 // Avoid re-indenting a row that has already been indented by a
6180 // previous selection, but still update this selection's column
6181 // to reflect that indentation.
6182 if delta_for_start_row > 0 {
6183 start_row += 1;
6184 selection.start.column += delta_for_start_row;
6185 if selection.end.row == selection.start.row {
6186 selection.end.column += delta_for_start_row;
6187 }
6188 }
6189
6190 let mut delta_for_end_row = 0;
6191 let has_multiple_rows = start_row + 1 != end_row;
6192 for row in start_row..end_row {
6193 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6194 let indent_delta = match (current_indent.kind, indent_kind) {
6195 (IndentKind::Space, IndentKind::Space) => {
6196 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6197 IndentSize::spaces(columns_to_next_tab_stop)
6198 }
6199 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6200 (_, IndentKind::Tab) => IndentSize::tab(),
6201 };
6202
6203 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6204 0
6205 } else {
6206 selection.start.column
6207 };
6208 let row_start = Point::new(row, start);
6209 edits.push((
6210 row_start..row_start,
6211 indent_delta.chars().collect::<String>(),
6212 ));
6213
6214 // Update this selection's endpoints to reflect the indentation.
6215 if row == selection.start.row {
6216 selection.start.column += indent_delta.len;
6217 }
6218 if row == selection.end.row {
6219 selection.end.column += indent_delta.len;
6220 delta_for_end_row = indent_delta.len;
6221 }
6222 }
6223
6224 if selection.start.row == selection.end.row {
6225 delta_for_start_row + delta_for_end_row
6226 } else {
6227 delta_for_end_row
6228 }
6229 }
6230
6231 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6232 if self.read_only(cx) {
6233 return;
6234 }
6235 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6236 let selections = self.selections.all::<Point>(cx);
6237 let mut deletion_ranges = Vec::new();
6238 let mut last_outdent = None;
6239 {
6240 let buffer = self.buffer.read(cx);
6241 let snapshot = buffer.snapshot(cx);
6242 for selection in &selections {
6243 let settings = buffer.settings_at(selection.start, cx);
6244 let tab_size = settings.tab_size.get();
6245 let mut rows = selection.spanned_rows(false, &display_map);
6246
6247 // Avoid re-outdenting a row that has already been outdented by a
6248 // previous selection.
6249 if let Some(last_row) = last_outdent {
6250 if last_row == rows.start {
6251 rows.start = rows.start.next_row();
6252 }
6253 }
6254 let has_multiple_rows = rows.len() > 1;
6255 for row in rows.iter_rows() {
6256 let indent_size = snapshot.indent_size_for_line(row);
6257 if indent_size.len > 0 {
6258 let deletion_len = match indent_size.kind {
6259 IndentKind::Space => {
6260 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6261 if columns_to_prev_tab_stop == 0 {
6262 tab_size
6263 } else {
6264 columns_to_prev_tab_stop
6265 }
6266 }
6267 IndentKind::Tab => 1,
6268 };
6269 let start = if has_multiple_rows
6270 || deletion_len > selection.start.column
6271 || indent_size.len < selection.start.column
6272 {
6273 0
6274 } else {
6275 selection.start.column - deletion_len
6276 };
6277 deletion_ranges.push(
6278 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6279 );
6280 last_outdent = Some(row);
6281 }
6282 }
6283 }
6284 }
6285
6286 self.transact(cx, |this, cx| {
6287 this.buffer.update(cx, |buffer, cx| {
6288 let empty_str: Arc<str> = Arc::default();
6289 buffer.edit(
6290 deletion_ranges
6291 .into_iter()
6292 .map(|range| (range, empty_str.clone())),
6293 None,
6294 cx,
6295 );
6296 });
6297 let selections = this.selections.all::<usize>(cx);
6298 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6299 });
6300 }
6301
6302 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
6303 if self.read_only(cx) {
6304 return;
6305 }
6306 let selections = self
6307 .selections
6308 .all::<usize>(cx)
6309 .into_iter()
6310 .map(|s| s.range());
6311
6312 self.transact(cx, |this, cx| {
6313 this.buffer.update(cx, |buffer, cx| {
6314 buffer.autoindent_ranges(selections, cx);
6315 });
6316 let selections = this.selections.all::<usize>(cx);
6317 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6318 });
6319 }
6320
6321 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6322 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6323 let selections = self.selections.all::<Point>(cx);
6324
6325 let mut new_cursors = Vec::new();
6326 let mut edit_ranges = Vec::new();
6327 let mut selections = selections.iter().peekable();
6328 while let Some(selection) = selections.next() {
6329 let mut rows = selection.spanned_rows(false, &display_map);
6330 let goal_display_column = selection.head().to_display_point(&display_map).column();
6331
6332 // Accumulate contiguous regions of rows that we want to delete.
6333 while let Some(next_selection) = selections.peek() {
6334 let next_rows = next_selection.spanned_rows(false, &display_map);
6335 if next_rows.start <= rows.end {
6336 rows.end = next_rows.end;
6337 selections.next().unwrap();
6338 } else {
6339 break;
6340 }
6341 }
6342
6343 let buffer = &display_map.buffer_snapshot;
6344 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6345 let edit_end;
6346 let cursor_buffer_row;
6347 if buffer.max_point().row >= rows.end.0 {
6348 // If there's a line after the range, delete the \n from the end of the row range
6349 // and position the cursor on the next line.
6350 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6351 cursor_buffer_row = rows.end;
6352 } else {
6353 // If there isn't a line after the range, delete the \n from the line before the
6354 // start of the row range and position the cursor there.
6355 edit_start = edit_start.saturating_sub(1);
6356 edit_end = buffer.len();
6357 cursor_buffer_row = rows.start.previous_row();
6358 }
6359
6360 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6361 *cursor.column_mut() =
6362 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6363
6364 new_cursors.push((
6365 selection.id,
6366 buffer.anchor_after(cursor.to_point(&display_map)),
6367 ));
6368 edit_ranges.push(edit_start..edit_end);
6369 }
6370
6371 self.transact(cx, |this, cx| {
6372 let buffer = this.buffer.update(cx, |buffer, cx| {
6373 let empty_str: Arc<str> = Arc::default();
6374 buffer.edit(
6375 edit_ranges
6376 .into_iter()
6377 .map(|range| (range, empty_str.clone())),
6378 None,
6379 cx,
6380 );
6381 buffer.snapshot(cx)
6382 });
6383 let new_selections = new_cursors
6384 .into_iter()
6385 .map(|(id, cursor)| {
6386 let cursor = cursor.to_point(&buffer);
6387 Selection {
6388 id,
6389 start: cursor,
6390 end: cursor,
6391 reversed: false,
6392 goal: SelectionGoal::None,
6393 }
6394 })
6395 .collect();
6396
6397 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6398 s.select(new_selections);
6399 });
6400 });
6401 }
6402
6403 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6404 if self.read_only(cx) {
6405 return;
6406 }
6407 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6408 for selection in self.selections.all::<Point>(cx) {
6409 let start = MultiBufferRow(selection.start.row);
6410 // Treat single line selections as if they include the next line. Otherwise this action
6411 // would do nothing for single line selections individual cursors.
6412 let end = if selection.start.row == selection.end.row {
6413 MultiBufferRow(selection.start.row + 1)
6414 } else {
6415 MultiBufferRow(selection.end.row)
6416 };
6417
6418 if let Some(last_row_range) = row_ranges.last_mut() {
6419 if start <= last_row_range.end {
6420 last_row_range.end = end;
6421 continue;
6422 }
6423 }
6424 row_ranges.push(start..end);
6425 }
6426
6427 let snapshot = self.buffer.read(cx).snapshot(cx);
6428 let mut cursor_positions = Vec::new();
6429 for row_range in &row_ranges {
6430 let anchor = snapshot.anchor_before(Point::new(
6431 row_range.end.previous_row().0,
6432 snapshot.line_len(row_range.end.previous_row()),
6433 ));
6434 cursor_positions.push(anchor..anchor);
6435 }
6436
6437 self.transact(cx, |this, cx| {
6438 for row_range in row_ranges.into_iter().rev() {
6439 for row in row_range.iter_rows().rev() {
6440 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6441 let next_line_row = row.next_row();
6442 let indent = snapshot.indent_size_for_line(next_line_row);
6443 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6444
6445 let replace = if snapshot.line_len(next_line_row) > indent.len {
6446 " "
6447 } else {
6448 ""
6449 };
6450
6451 this.buffer.update(cx, |buffer, cx| {
6452 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6453 });
6454 }
6455 }
6456
6457 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6458 s.select_anchor_ranges(cursor_positions)
6459 });
6460 });
6461 }
6462
6463 pub fn sort_lines_case_sensitive(
6464 &mut self,
6465 _: &SortLinesCaseSensitive,
6466 cx: &mut ViewContext<Self>,
6467 ) {
6468 self.manipulate_lines(cx, |lines| lines.sort())
6469 }
6470
6471 pub fn sort_lines_case_insensitive(
6472 &mut self,
6473 _: &SortLinesCaseInsensitive,
6474 cx: &mut ViewContext<Self>,
6475 ) {
6476 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6477 }
6478
6479 pub fn unique_lines_case_insensitive(
6480 &mut self,
6481 _: &UniqueLinesCaseInsensitive,
6482 cx: &mut ViewContext<Self>,
6483 ) {
6484 self.manipulate_lines(cx, |lines| {
6485 let mut seen = HashSet::default();
6486 lines.retain(|line| seen.insert(line.to_lowercase()));
6487 })
6488 }
6489
6490 pub fn unique_lines_case_sensitive(
6491 &mut self,
6492 _: &UniqueLinesCaseSensitive,
6493 cx: &mut ViewContext<Self>,
6494 ) {
6495 self.manipulate_lines(cx, |lines| {
6496 let mut seen = HashSet::default();
6497 lines.retain(|line| seen.insert(*line));
6498 })
6499 }
6500
6501 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6502 let mut revert_changes = HashMap::default();
6503 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6504 for hunk in hunks_for_rows(
6505 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6506 &multi_buffer_snapshot,
6507 ) {
6508 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6509 }
6510 if !revert_changes.is_empty() {
6511 self.transact(cx, |editor, cx| {
6512 editor.revert(revert_changes, cx);
6513 });
6514 }
6515 }
6516
6517 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6518 let Some(project) = self.project.clone() else {
6519 return;
6520 };
6521 self.reload(project, cx).detach_and_notify_err(cx);
6522 }
6523
6524 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6525 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6526 if !revert_changes.is_empty() {
6527 self.transact(cx, |editor, cx| {
6528 editor.revert(revert_changes, cx);
6529 });
6530 }
6531 }
6532
6533 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6534 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6535 let project_path = buffer.read(cx).project_path(cx)?;
6536 let project = self.project.as_ref()?.read(cx);
6537 let entry = project.entry_for_path(&project_path, cx)?;
6538 let parent = match &entry.canonical_path {
6539 Some(canonical_path) => canonical_path.to_path_buf(),
6540 None => project.absolute_path(&project_path, cx)?,
6541 }
6542 .parent()?
6543 .to_path_buf();
6544 Some(parent)
6545 }) {
6546 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6547 }
6548 }
6549
6550 fn gather_revert_changes(
6551 &mut self,
6552 selections: &[Selection<Anchor>],
6553 cx: &mut ViewContext<'_, Editor>,
6554 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6555 let mut revert_changes = HashMap::default();
6556 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6557 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6558 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6559 }
6560 revert_changes
6561 }
6562
6563 pub fn prepare_revert_change(
6564 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6565 multi_buffer: &Model<MultiBuffer>,
6566 hunk: &MultiBufferDiffHunk,
6567 cx: &AppContext,
6568 ) -> Option<()> {
6569 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6570 let buffer = buffer.read(cx);
6571 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6572 let buffer_snapshot = buffer.snapshot();
6573 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6574 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6575 probe
6576 .0
6577 .start
6578 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6579 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6580 }) {
6581 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6582 Some(())
6583 } else {
6584 None
6585 }
6586 }
6587
6588 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6589 self.manipulate_lines(cx, |lines| lines.reverse())
6590 }
6591
6592 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6593 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6594 }
6595
6596 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6597 where
6598 Fn: FnMut(&mut Vec<&str>),
6599 {
6600 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6601 let buffer = self.buffer.read(cx).snapshot(cx);
6602
6603 let mut edits = Vec::new();
6604
6605 let selections = self.selections.all::<Point>(cx);
6606 let mut selections = selections.iter().peekable();
6607 let mut contiguous_row_selections = Vec::new();
6608 let mut new_selections = Vec::new();
6609 let mut added_lines = 0;
6610 let mut removed_lines = 0;
6611
6612 while let Some(selection) = selections.next() {
6613 let (start_row, end_row) = consume_contiguous_rows(
6614 &mut contiguous_row_selections,
6615 selection,
6616 &display_map,
6617 &mut selections,
6618 );
6619
6620 let start_point = Point::new(start_row.0, 0);
6621 let end_point = Point::new(
6622 end_row.previous_row().0,
6623 buffer.line_len(end_row.previous_row()),
6624 );
6625 let text = buffer
6626 .text_for_range(start_point..end_point)
6627 .collect::<String>();
6628
6629 let mut lines = text.split('\n').collect_vec();
6630
6631 let lines_before = lines.len();
6632 callback(&mut lines);
6633 let lines_after = lines.len();
6634
6635 edits.push((start_point..end_point, lines.join("\n")));
6636
6637 // Selections must change based on added and removed line count
6638 let start_row =
6639 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6640 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6641 new_selections.push(Selection {
6642 id: selection.id,
6643 start: start_row,
6644 end: end_row,
6645 goal: SelectionGoal::None,
6646 reversed: selection.reversed,
6647 });
6648
6649 if lines_after > lines_before {
6650 added_lines += lines_after - lines_before;
6651 } else if lines_before > lines_after {
6652 removed_lines += lines_before - lines_after;
6653 }
6654 }
6655
6656 self.transact(cx, |this, cx| {
6657 let buffer = this.buffer.update(cx, |buffer, cx| {
6658 buffer.edit(edits, None, cx);
6659 buffer.snapshot(cx)
6660 });
6661
6662 // Recalculate offsets on newly edited buffer
6663 let new_selections = new_selections
6664 .iter()
6665 .map(|s| {
6666 let start_point = Point::new(s.start.0, 0);
6667 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6668 Selection {
6669 id: s.id,
6670 start: buffer.point_to_offset(start_point),
6671 end: buffer.point_to_offset(end_point),
6672 goal: s.goal,
6673 reversed: s.reversed,
6674 }
6675 })
6676 .collect();
6677
6678 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6679 s.select(new_selections);
6680 });
6681
6682 this.request_autoscroll(Autoscroll::fit(), cx);
6683 });
6684 }
6685
6686 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6687 self.manipulate_text(cx, |text| text.to_uppercase())
6688 }
6689
6690 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6691 self.manipulate_text(cx, |text| text.to_lowercase())
6692 }
6693
6694 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6695 self.manipulate_text(cx, |text| {
6696 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6697 // https://github.com/rutrum/convert-case/issues/16
6698 text.split('\n')
6699 .map(|line| line.to_case(Case::Title))
6700 .join("\n")
6701 })
6702 }
6703
6704 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6705 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6706 }
6707
6708 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6709 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6710 }
6711
6712 pub fn convert_to_upper_camel_case(
6713 &mut self,
6714 _: &ConvertToUpperCamelCase,
6715 cx: &mut ViewContext<Self>,
6716 ) {
6717 self.manipulate_text(cx, |text| {
6718 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6719 // https://github.com/rutrum/convert-case/issues/16
6720 text.split('\n')
6721 .map(|line| line.to_case(Case::UpperCamel))
6722 .join("\n")
6723 })
6724 }
6725
6726 pub fn convert_to_lower_camel_case(
6727 &mut self,
6728 _: &ConvertToLowerCamelCase,
6729 cx: &mut ViewContext<Self>,
6730 ) {
6731 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6732 }
6733
6734 pub fn convert_to_opposite_case(
6735 &mut self,
6736 _: &ConvertToOppositeCase,
6737 cx: &mut ViewContext<Self>,
6738 ) {
6739 self.manipulate_text(cx, |text| {
6740 text.chars()
6741 .fold(String::with_capacity(text.len()), |mut t, c| {
6742 if c.is_uppercase() {
6743 t.extend(c.to_lowercase());
6744 } else {
6745 t.extend(c.to_uppercase());
6746 }
6747 t
6748 })
6749 })
6750 }
6751
6752 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6753 where
6754 Fn: FnMut(&str) -> String,
6755 {
6756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6757 let buffer = self.buffer.read(cx).snapshot(cx);
6758
6759 let mut new_selections = Vec::new();
6760 let mut edits = Vec::new();
6761 let mut selection_adjustment = 0i32;
6762
6763 for selection in self.selections.all::<usize>(cx) {
6764 let selection_is_empty = selection.is_empty();
6765
6766 let (start, end) = if selection_is_empty {
6767 let word_range = movement::surrounding_word(
6768 &display_map,
6769 selection.start.to_display_point(&display_map),
6770 );
6771 let start = word_range.start.to_offset(&display_map, Bias::Left);
6772 let end = word_range.end.to_offset(&display_map, Bias::Left);
6773 (start, end)
6774 } else {
6775 (selection.start, selection.end)
6776 };
6777
6778 let text = buffer.text_for_range(start..end).collect::<String>();
6779 let old_length = text.len() as i32;
6780 let text = callback(&text);
6781
6782 new_selections.push(Selection {
6783 start: (start as i32 - selection_adjustment) as usize,
6784 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6785 goal: SelectionGoal::None,
6786 ..selection
6787 });
6788
6789 selection_adjustment += old_length - text.len() as i32;
6790
6791 edits.push((start..end, text));
6792 }
6793
6794 self.transact(cx, |this, cx| {
6795 this.buffer.update(cx, |buffer, cx| {
6796 buffer.edit(edits, None, cx);
6797 });
6798
6799 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6800 s.select(new_selections);
6801 });
6802
6803 this.request_autoscroll(Autoscroll::fit(), cx);
6804 });
6805 }
6806
6807 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6809 let buffer = &display_map.buffer_snapshot;
6810 let selections = self.selections.all::<Point>(cx);
6811
6812 let mut edits = Vec::new();
6813 let mut selections_iter = selections.iter().peekable();
6814 while let Some(selection) = selections_iter.next() {
6815 // Avoid duplicating the same lines twice.
6816 let mut rows = selection.spanned_rows(false, &display_map);
6817
6818 while let Some(next_selection) = selections_iter.peek() {
6819 let next_rows = next_selection.spanned_rows(false, &display_map);
6820 if next_rows.start < rows.end {
6821 rows.end = next_rows.end;
6822 selections_iter.next().unwrap();
6823 } else {
6824 break;
6825 }
6826 }
6827
6828 // Copy the text from the selected row region and splice it either at the start
6829 // or end of the region.
6830 let start = Point::new(rows.start.0, 0);
6831 let end = Point::new(
6832 rows.end.previous_row().0,
6833 buffer.line_len(rows.end.previous_row()),
6834 );
6835 let text = buffer
6836 .text_for_range(start..end)
6837 .chain(Some("\n"))
6838 .collect::<String>();
6839 let insert_location = if upwards {
6840 Point::new(rows.end.0, 0)
6841 } else {
6842 start
6843 };
6844 edits.push((insert_location..insert_location, text));
6845 }
6846
6847 self.transact(cx, |this, cx| {
6848 this.buffer.update(cx, |buffer, cx| {
6849 buffer.edit(edits, None, cx);
6850 });
6851
6852 this.request_autoscroll(Autoscroll::fit(), cx);
6853 });
6854 }
6855
6856 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6857 self.duplicate_line(true, cx);
6858 }
6859
6860 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6861 self.duplicate_line(false, cx);
6862 }
6863
6864 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6865 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6866 let buffer = self.buffer.read(cx).snapshot(cx);
6867
6868 let mut edits = Vec::new();
6869 let mut unfold_ranges = Vec::new();
6870 let mut refold_creases = Vec::new();
6871
6872 let selections = self.selections.all::<Point>(cx);
6873 let mut selections = selections.iter().peekable();
6874 let mut contiguous_row_selections = Vec::new();
6875 let mut new_selections = Vec::new();
6876
6877 while let Some(selection) = selections.next() {
6878 // Find all the selections that span a contiguous row range
6879 let (start_row, end_row) = consume_contiguous_rows(
6880 &mut contiguous_row_selections,
6881 selection,
6882 &display_map,
6883 &mut selections,
6884 );
6885
6886 // Move the text spanned by the row range to be before the line preceding the row range
6887 if start_row.0 > 0 {
6888 let range_to_move = Point::new(
6889 start_row.previous_row().0,
6890 buffer.line_len(start_row.previous_row()),
6891 )
6892 ..Point::new(
6893 end_row.previous_row().0,
6894 buffer.line_len(end_row.previous_row()),
6895 );
6896 let insertion_point = display_map
6897 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6898 .0;
6899
6900 // Don't move lines across excerpts
6901 if buffer
6902 .excerpt_boundaries_in_range((
6903 Bound::Excluded(insertion_point),
6904 Bound::Included(range_to_move.end),
6905 ))
6906 .next()
6907 .is_none()
6908 {
6909 let text = buffer
6910 .text_for_range(range_to_move.clone())
6911 .flat_map(|s| s.chars())
6912 .skip(1)
6913 .chain(['\n'])
6914 .collect::<String>();
6915
6916 edits.push((
6917 buffer.anchor_after(range_to_move.start)
6918 ..buffer.anchor_before(range_to_move.end),
6919 String::new(),
6920 ));
6921 let insertion_anchor = buffer.anchor_after(insertion_point);
6922 edits.push((insertion_anchor..insertion_anchor, text));
6923
6924 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6925
6926 // Move selections up
6927 new_selections.extend(contiguous_row_selections.drain(..).map(
6928 |mut selection| {
6929 selection.start.row -= row_delta;
6930 selection.end.row -= row_delta;
6931 selection
6932 },
6933 ));
6934
6935 // Move folds up
6936 unfold_ranges.push(range_to_move.clone());
6937 for fold in display_map.folds_in_range(
6938 buffer.anchor_before(range_to_move.start)
6939 ..buffer.anchor_after(range_to_move.end),
6940 ) {
6941 let mut start = fold.range.start.to_point(&buffer);
6942 let mut end = fold.range.end.to_point(&buffer);
6943 start.row -= row_delta;
6944 end.row -= row_delta;
6945 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6946 }
6947 }
6948 }
6949
6950 // If we didn't move line(s), preserve the existing selections
6951 new_selections.append(&mut contiguous_row_selections);
6952 }
6953
6954 self.transact(cx, |this, cx| {
6955 this.unfold_ranges(&unfold_ranges, true, true, cx);
6956 this.buffer.update(cx, |buffer, cx| {
6957 for (range, text) in edits {
6958 buffer.edit([(range, text)], None, cx);
6959 }
6960 });
6961 this.fold_creases(refold_creases, true, cx);
6962 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6963 s.select(new_selections);
6964 })
6965 });
6966 }
6967
6968 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6969 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6970 let buffer = self.buffer.read(cx).snapshot(cx);
6971
6972 let mut edits = Vec::new();
6973 let mut unfold_ranges = Vec::new();
6974 let mut refold_creases = Vec::new();
6975
6976 let selections = self.selections.all::<Point>(cx);
6977 let mut selections = selections.iter().peekable();
6978 let mut contiguous_row_selections = Vec::new();
6979 let mut new_selections = Vec::new();
6980
6981 while let Some(selection) = selections.next() {
6982 // Find all the selections that span a contiguous row range
6983 let (start_row, end_row) = consume_contiguous_rows(
6984 &mut contiguous_row_selections,
6985 selection,
6986 &display_map,
6987 &mut selections,
6988 );
6989
6990 // Move the text spanned by the row range to be after the last line of the row range
6991 if end_row.0 <= buffer.max_point().row {
6992 let range_to_move =
6993 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6994 let insertion_point = display_map
6995 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6996 .0;
6997
6998 // Don't move lines across excerpt boundaries
6999 if buffer
7000 .excerpt_boundaries_in_range((
7001 Bound::Excluded(range_to_move.start),
7002 Bound::Included(insertion_point),
7003 ))
7004 .next()
7005 .is_none()
7006 {
7007 let mut text = String::from("\n");
7008 text.extend(buffer.text_for_range(range_to_move.clone()));
7009 text.pop(); // Drop trailing newline
7010 edits.push((
7011 buffer.anchor_after(range_to_move.start)
7012 ..buffer.anchor_before(range_to_move.end),
7013 String::new(),
7014 ));
7015 let insertion_anchor = buffer.anchor_after(insertion_point);
7016 edits.push((insertion_anchor..insertion_anchor, text));
7017
7018 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7019
7020 // Move selections down
7021 new_selections.extend(contiguous_row_selections.drain(..).map(
7022 |mut selection| {
7023 selection.start.row += row_delta;
7024 selection.end.row += row_delta;
7025 selection
7026 },
7027 ));
7028
7029 // Move folds down
7030 unfold_ranges.push(range_to_move.clone());
7031 for fold in display_map.folds_in_range(
7032 buffer.anchor_before(range_to_move.start)
7033 ..buffer.anchor_after(range_to_move.end),
7034 ) {
7035 let mut start = fold.range.start.to_point(&buffer);
7036 let mut end = fold.range.end.to_point(&buffer);
7037 start.row += row_delta;
7038 end.row += row_delta;
7039 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7040 }
7041 }
7042 }
7043
7044 // If we didn't move line(s), preserve the existing selections
7045 new_selections.append(&mut contiguous_row_selections);
7046 }
7047
7048 self.transact(cx, |this, cx| {
7049 this.unfold_ranges(&unfold_ranges, true, true, cx);
7050 this.buffer.update(cx, |buffer, cx| {
7051 for (range, text) in edits {
7052 buffer.edit([(range, text)], None, cx);
7053 }
7054 });
7055 this.fold_creases(refold_creases, true, cx);
7056 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7057 });
7058 }
7059
7060 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7061 let text_layout_details = &self.text_layout_details(cx);
7062 self.transact(cx, |this, cx| {
7063 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7064 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7065 let line_mode = s.line_mode;
7066 s.move_with(|display_map, selection| {
7067 if !selection.is_empty() || line_mode {
7068 return;
7069 }
7070
7071 let mut head = selection.head();
7072 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7073 if head.column() == display_map.line_len(head.row()) {
7074 transpose_offset = display_map
7075 .buffer_snapshot
7076 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7077 }
7078
7079 if transpose_offset == 0 {
7080 return;
7081 }
7082
7083 *head.column_mut() += 1;
7084 head = display_map.clip_point(head, Bias::Right);
7085 let goal = SelectionGoal::HorizontalPosition(
7086 display_map
7087 .x_for_display_point(head, text_layout_details)
7088 .into(),
7089 );
7090 selection.collapse_to(head, goal);
7091
7092 let transpose_start = display_map
7093 .buffer_snapshot
7094 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7095 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7096 let transpose_end = display_map
7097 .buffer_snapshot
7098 .clip_offset(transpose_offset + 1, Bias::Right);
7099 if let Some(ch) =
7100 display_map.buffer_snapshot.chars_at(transpose_start).next()
7101 {
7102 edits.push((transpose_start..transpose_offset, String::new()));
7103 edits.push((transpose_end..transpose_end, ch.to_string()));
7104 }
7105 }
7106 });
7107 edits
7108 });
7109 this.buffer
7110 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7111 let selections = this.selections.all::<usize>(cx);
7112 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7113 s.select(selections);
7114 });
7115 });
7116 }
7117
7118 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7119 self.rewrap_impl(IsVimMode::No, cx)
7120 }
7121
7122 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7123 let buffer = self.buffer.read(cx).snapshot(cx);
7124 let selections = self.selections.all::<Point>(cx);
7125 let mut selections = selections.iter().peekable();
7126
7127 let mut edits = Vec::new();
7128 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7129
7130 while let Some(selection) = selections.next() {
7131 let mut start_row = selection.start.row;
7132 let mut end_row = selection.end.row;
7133
7134 // Skip selections that overlap with a range that has already been rewrapped.
7135 let selection_range = start_row..end_row;
7136 if rewrapped_row_ranges
7137 .iter()
7138 .any(|range| range.overlaps(&selection_range))
7139 {
7140 continue;
7141 }
7142
7143 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7144
7145 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7146 match language_scope.language_name().0.as_ref() {
7147 "Markdown" | "Plain Text" => {
7148 should_rewrap = true;
7149 }
7150 _ => {}
7151 }
7152 }
7153
7154 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7155
7156 // Since not all lines in the selection may be at the same indent
7157 // level, choose the indent size that is the most common between all
7158 // of the lines.
7159 //
7160 // If there is a tie, we use the deepest indent.
7161 let (indent_size, indent_end) = {
7162 let mut indent_size_occurrences = HashMap::default();
7163 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7164
7165 for row in start_row..=end_row {
7166 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7167 rows_by_indent_size.entry(indent).or_default().push(row);
7168 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7169 }
7170
7171 let indent_size = indent_size_occurrences
7172 .into_iter()
7173 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7174 .map(|(indent, _)| indent)
7175 .unwrap_or_default();
7176 let row = rows_by_indent_size[&indent_size][0];
7177 let indent_end = Point::new(row, indent_size.len);
7178
7179 (indent_size, indent_end)
7180 };
7181
7182 let mut line_prefix = indent_size.chars().collect::<String>();
7183
7184 if let Some(comment_prefix) =
7185 buffer
7186 .language_scope_at(selection.head())
7187 .and_then(|language| {
7188 language
7189 .line_comment_prefixes()
7190 .iter()
7191 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7192 .cloned()
7193 })
7194 {
7195 line_prefix.push_str(&comment_prefix);
7196 should_rewrap = true;
7197 }
7198
7199 if !should_rewrap {
7200 continue;
7201 }
7202
7203 if selection.is_empty() {
7204 'expand_upwards: while start_row > 0 {
7205 let prev_row = start_row - 1;
7206 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7207 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7208 {
7209 start_row = prev_row;
7210 } else {
7211 break 'expand_upwards;
7212 }
7213 }
7214
7215 'expand_downwards: while end_row < buffer.max_point().row {
7216 let next_row = end_row + 1;
7217 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7218 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7219 {
7220 end_row = next_row;
7221 } else {
7222 break 'expand_downwards;
7223 }
7224 }
7225 }
7226
7227 let start = Point::new(start_row, 0);
7228 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7229 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7230 let Some(lines_without_prefixes) = selection_text
7231 .lines()
7232 .map(|line| {
7233 line.strip_prefix(&line_prefix)
7234 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7235 .ok_or_else(|| {
7236 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7237 })
7238 })
7239 .collect::<Result<Vec<_>, _>>()
7240 .log_err()
7241 else {
7242 continue;
7243 };
7244
7245 let wrap_column = buffer
7246 .settings_at(Point::new(start_row, 0), cx)
7247 .preferred_line_length as usize;
7248 let wrapped_text = wrap_with_prefix(
7249 line_prefix,
7250 lines_without_prefixes.join(" "),
7251 wrap_column,
7252 tab_size,
7253 );
7254
7255 // TODO: should always use char-based diff while still supporting cursor behavior that
7256 // matches vim.
7257 let diff = match is_vim_mode {
7258 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7259 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7260 };
7261 let mut offset = start.to_offset(&buffer);
7262 let mut moved_since_edit = true;
7263
7264 for change in diff.iter_all_changes() {
7265 let value = change.value();
7266 match change.tag() {
7267 ChangeTag::Equal => {
7268 offset += value.len();
7269 moved_since_edit = true;
7270 }
7271 ChangeTag::Delete => {
7272 let start = buffer.anchor_after(offset);
7273 let end = buffer.anchor_before(offset + value.len());
7274
7275 if moved_since_edit {
7276 edits.push((start..end, String::new()));
7277 } else {
7278 edits.last_mut().unwrap().0.end = end;
7279 }
7280
7281 offset += value.len();
7282 moved_since_edit = false;
7283 }
7284 ChangeTag::Insert => {
7285 if moved_since_edit {
7286 let anchor = buffer.anchor_after(offset);
7287 edits.push((anchor..anchor, value.to_string()));
7288 } else {
7289 edits.last_mut().unwrap().1.push_str(value);
7290 }
7291
7292 moved_since_edit = false;
7293 }
7294 }
7295 }
7296
7297 rewrapped_row_ranges.push(start_row..=end_row);
7298 }
7299
7300 self.buffer
7301 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7302 }
7303
7304 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7305 let mut text = String::new();
7306 let buffer = self.buffer.read(cx).snapshot(cx);
7307 let mut selections = self.selections.all::<Point>(cx);
7308 let mut clipboard_selections = Vec::with_capacity(selections.len());
7309 {
7310 let max_point = buffer.max_point();
7311 let mut is_first = true;
7312 for selection in &mut selections {
7313 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7314 if is_entire_line {
7315 selection.start = Point::new(selection.start.row, 0);
7316 if !selection.is_empty() && selection.end.column == 0 {
7317 selection.end = cmp::min(max_point, selection.end);
7318 } else {
7319 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7320 }
7321 selection.goal = SelectionGoal::None;
7322 }
7323 if is_first {
7324 is_first = false;
7325 } else {
7326 text += "\n";
7327 }
7328 let mut len = 0;
7329 for chunk in buffer.text_for_range(selection.start..selection.end) {
7330 text.push_str(chunk);
7331 len += chunk.len();
7332 }
7333 clipboard_selections.push(ClipboardSelection {
7334 len,
7335 is_entire_line,
7336 first_line_indent: buffer
7337 .indent_size_for_line(MultiBufferRow(selection.start.row))
7338 .len,
7339 });
7340 }
7341 }
7342
7343 self.transact(cx, |this, cx| {
7344 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7345 s.select(selections);
7346 });
7347 this.insert("", cx);
7348 });
7349 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7350 }
7351
7352 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7353 let item = self.cut_common(cx);
7354 cx.write_to_clipboard(item);
7355 }
7356
7357 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7358 self.change_selections(None, cx, |s| {
7359 s.move_with(|snapshot, sel| {
7360 if sel.is_empty() {
7361 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7362 }
7363 });
7364 });
7365 let item = self.cut_common(cx);
7366 cx.set_global(KillRing(item))
7367 }
7368
7369 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7370 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7371 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7372 (kill_ring.text().to_string(), kill_ring.metadata_json())
7373 } else {
7374 return;
7375 }
7376 } else {
7377 return;
7378 };
7379 self.do_paste(&text, metadata, false, cx);
7380 }
7381
7382 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7383 let selections = self.selections.all::<Point>(cx);
7384 let buffer = self.buffer.read(cx).read(cx);
7385 let mut text = String::new();
7386
7387 let mut clipboard_selections = Vec::with_capacity(selections.len());
7388 {
7389 let max_point = buffer.max_point();
7390 let mut is_first = true;
7391 for selection in selections.iter() {
7392 let mut start = selection.start;
7393 let mut end = selection.end;
7394 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7395 if is_entire_line {
7396 start = Point::new(start.row, 0);
7397 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7398 }
7399 if is_first {
7400 is_first = false;
7401 } else {
7402 text += "\n";
7403 }
7404 let mut len = 0;
7405 for chunk in buffer.text_for_range(start..end) {
7406 text.push_str(chunk);
7407 len += chunk.len();
7408 }
7409 clipboard_selections.push(ClipboardSelection {
7410 len,
7411 is_entire_line,
7412 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7413 });
7414 }
7415 }
7416
7417 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7418 text,
7419 clipboard_selections,
7420 ));
7421 }
7422
7423 pub fn do_paste(
7424 &mut self,
7425 text: &String,
7426 clipboard_selections: Option<Vec<ClipboardSelection>>,
7427 handle_entire_lines: bool,
7428 cx: &mut ViewContext<Self>,
7429 ) {
7430 if self.read_only(cx) {
7431 return;
7432 }
7433
7434 let clipboard_text = Cow::Borrowed(text);
7435
7436 self.transact(cx, |this, cx| {
7437 if let Some(mut clipboard_selections) = clipboard_selections {
7438 let old_selections = this.selections.all::<usize>(cx);
7439 let all_selections_were_entire_line =
7440 clipboard_selections.iter().all(|s| s.is_entire_line);
7441 let first_selection_indent_column =
7442 clipboard_selections.first().map(|s| s.first_line_indent);
7443 if clipboard_selections.len() != old_selections.len() {
7444 clipboard_selections.drain(..);
7445 }
7446 let cursor_offset = this.selections.last::<usize>(cx).head();
7447 let mut auto_indent_on_paste = true;
7448
7449 this.buffer.update(cx, |buffer, cx| {
7450 let snapshot = buffer.read(cx);
7451 auto_indent_on_paste =
7452 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7453
7454 let mut start_offset = 0;
7455 let mut edits = Vec::new();
7456 let mut original_indent_columns = Vec::new();
7457 for (ix, selection) in old_selections.iter().enumerate() {
7458 let to_insert;
7459 let entire_line;
7460 let original_indent_column;
7461 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7462 let end_offset = start_offset + clipboard_selection.len;
7463 to_insert = &clipboard_text[start_offset..end_offset];
7464 entire_line = clipboard_selection.is_entire_line;
7465 start_offset = end_offset + 1;
7466 original_indent_column = Some(clipboard_selection.first_line_indent);
7467 } else {
7468 to_insert = clipboard_text.as_str();
7469 entire_line = all_selections_were_entire_line;
7470 original_indent_column = first_selection_indent_column
7471 }
7472
7473 // If the corresponding selection was empty when this slice of the
7474 // clipboard text was written, then the entire line containing the
7475 // selection was copied. If this selection is also currently empty,
7476 // then paste the line before the current line of the buffer.
7477 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7478 let column = selection.start.to_point(&snapshot).column as usize;
7479 let line_start = selection.start - column;
7480 line_start..line_start
7481 } else {
7482 selection.range()
7483 };
7484
7485 edits.push((range, to_insert));
7486 original_indent_columns.extend(original_indent_column);
7487 }
7488 drop(snapshot);
7489
7490 buffer.edit(
7491 edits,
7492 if auto_indent_on_paste {
7493 Some(AutoindentMode::Block {
7494 original_indent_columns,
7495 })
7496 } else {
7497 None
7498 },
7499 cx,
7500 );
7501 });
7502
7503 let selections = this.selections.all::<usize>(cx);
7504 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7505 } else {
7506 this.insert(&clipboard_text, cx);
7507 }
7508 });
7509 }
7510
7511 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7512 if let Some(item) = cx.read_from_clipboard() {
7513 let entries = item.entries();
7514
7515 match entries.first() {
7516 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7517 // of all the pasted entries.
7518 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7519 .do_paste(
7520 clipboard_string.text(),
7521 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7522 true,
7523 cx,
7524 ),
7525 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7526 }
7527 }
7528 }
7529
7530 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7531 if self.read_only(cx) {
7532 return;
7533 }
7534
7535 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7536 if let Some((selections, _)) =
7537 self.selection_history.transaction(transaction_id).cloned()
7538 {
7539 self.change_selections(None, cx, |s| {
7540 s.select_anchors(selections.to_vec());
7541 });
7542 }
7543 self.request_autoscroll(Autoscroll::fit(), cx);
7544 self.unmark_text(cx);
7545 self.refresh_inline_completion(true, false, cx);
7546 cx.emit(EditorEvent::Edited { transaction_id });
7547 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7548 }
7549 }
7550
7551 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7552 if self.read_only(cx) {
7553 return;
7554 }
7555
7556 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7557 if let Some((_, Some(selections))) =
7558 self.selection_history.transaction(transaction_id).cloned()
7559 {
7560 self.change_selections(None, cx, |s| {
7561 s.select_anchors(selections.to_vec());
7562 });
7563 }
7564 self.request_autoscroll(Autoscroll::fit(), cx);
7565 self.unmark_text(cx);
7566 self.refresh_inline_completion(true, false, cx);
7567 cx.emit(EditorEvent::Edited { transaction_id });
7568 }
7569 }
7570
7571 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7572 self.buffer
7573 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7574 }
7575
7576 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7577 self.buffer
7578 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7579 }
7580
7581 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7582 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7583 let line_mode = s.line_mode;
7584 s.move_with(|map, selection| {
7585 let cursor = if selection.is_empty() && !line_mode {
7586 movement::left(map, selection.start)
7587 } else {
7588 selection.start
7589 };
7590 selection.collapse_to(cursor, SelectionGoal::None);
7591 });
7592 })
7593 }
7594
7595 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7596 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7597 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7598 })
7599 }
7600
7601 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7603 let line_mode = s.line_mode;
7604 s.move_with(|map, selection| {
7605 let cursor = if selection.is_empty() && !line_mode {
7606 movement::right(map, selection.end)
7607 } else {
7608 selection.end
7609 };
7610 selection.collapse_to(cursor, SelectionGoal::None)
7611 });
7612 })
7613 }
7614
7615 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7618 })
7619 }
7620
7621 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7622 if self.take_rename(true, cx).is_some() {
7623 return;
7624 }
7625
7626 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7627 cx.propagate();
7628 return;
7629 }
7630
7631 let text_layout_details = &self.text_layout_details(cx);
7632 let selection_count = self.selections.count();
7633 let first_selection = self.selections.first_anchor();
7634
7635 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7636 let line_mode = s.line_mode;
7637 s.move_with(|map, selection| {
7638 if !selection.is_empty() && !line_mode {
7639 selection.goal = SelectionGoal::None;
7640 }
7641 let (cursor, goal) = movement::up(
7642 map,
7643 selection.start,
7644 selection.goal,
7645 false,
7646 text_layout_details,
7647 );
7648 selection.collapse_to(cursor, goal);
7649 });
7650 });
7651
7652 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7653 {
7654 cx.propagate();
7655 }
7656 }
7657
7658 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7659 if self.take_rename(true, cx).is_some() {
7660 return;
7661 }
7662
7663 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7664 cx.propagate();
7665 return;
7666 }
7667
7668 let text_layout_details = &self.text_layout_details(cx);
7669
7670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 let line_mode = s.line_mode;
7672 s.move_with(|map, selection| {
7673 if !selection.is_empty() && !line_mode {
7674 selection.goal = SelectionGoal::None;
7675 }
7676 let (cursor, goal) = movement::up_by_rows(
7677 map,
7678 selection.start,
7679 action.lines,
7680 selection.goal,
7681 false,
7682 text_layout_details,
7683 );
7684 selection.collapse_to(cursor, goal);
7685 });
7686 })
7687 }
7688
7689 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7690 if self.take_rename(true, cx).is_some() {
7691 return;
7692 }
7693
7694 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7695 cx.propagate();
7696 return;
7697 }
7698
7699 let text_layout_details = &self.text_layout_details(cx);
7700
7701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7702 let line_mode = s.line_mode;
7703 s.move_with(|map, selection| {
7704 if !selection.is_empty() && !line_mode {
7705 selection.goal = SelectionGoal::None;
7706 }
7707 let (cursor, goal) = movement::down_by_rows(
7708 map,
7709 selection.start,
7710 action.lines,
7711 selection.goal,
7712 false,
7713 text_layout_details,
7714 );
7715 selection.collapse_to(cursor, goal);
7716 });
7717 })
7718 }
7719
7720 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7721 let text_layout_details = &self.text_layout_details(cx);
7722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7723 s.move_heads_with(|map, head, goal| {
7724 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7725 })
7726 })
7727 }
7728
7729 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7730 let text_layout_details = &self.text_layout_details(cx);
7731 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7732 s.move_heads_with(|map, head, goal| {
7733 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7734 })
7735 })
7736 }
7737
7738 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7739 let Some(row_count) = self.visible_row_count() else {
7740 return;
7741 };
7742
7743 let text_layout_details = &self.text_layout_details(cx);
7744
7745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7746 s.move_heads_with(|map, head, goal| {
7747 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7748 })
7749 })
7750 }
7751
7752 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7753 if self.take_rename(true, cx).is_some() {
7754 return;
7755 }
7756
7757 if self
7758 .context_menu
7759 .write()
7760 .as_mut()
7761 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7762 .unwrap_or(false)
7763 {
7764 return;
7765 }
7766
7767 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7768 cx.propagate();
7769 return;
7770 }
7771
7772 let Some(row_count) = self.visible_row_count() else {
7773 return;
7774 };
7775
7776 let autoscroll = if action.center_cursor {
7777 Autoscroll::center()
7778 } else {
7779 Autoscroll::fit()
7780 };
7781
7782 let text_layout_details = &self.text_layout_details(cx);
7783
7784 self.change_selections(Some(autoscroll), cx, |s| {
7785 let line_mode = s.line_mode;
7786 s.move_with(|map, selection| {
7787 if !selection.is_empty() && !line_mode {
7788 selection.goal = SelectionGoal::None;
7789 }
7790 let (cursor, goal) = movement::up_by_rows(
7791 map,
7792 selection.end,
7793 row_count,
7794 selection.goal,
7795 false,
7796 text_layout_details,
7797 );
7798 selection.collapse_to(cursor, goal);
7799 });
7800 });
7801 }
7802
7803 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7804 let text_layout_details = &self.text_layout_details(cx);
7805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7806 s.move_heads_with(|map, head, goal| {
7807 movement::up(map, head, goal, false, text_layout_details)
7808 })
7809 })
7810 }
7811
7812 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7813 self.take_rename(true, cx);
7814
7815 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7816 cx.propagate();
7817 return;
7818 }
7819
7820 let text_layout_details = &self.text_layout_details(cx);
7821 let selection_count = self.selections.count();
7822 let first_selection = self.selections.first_anchor();
7823
7824 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7825 let line_mode = s.line_mode;
7826 s.move_with(|map, selection| {
7827 if !selection.is_empty() && !line_mode {
7828 selection.goal = SelectionGoal::None;
7829 }
7830 let (cursor, goal) = movement::down(
7831 map,
7832 selection.end,
7833 selection.goal,
7834 false,
7835 text_layout_details,
7836 );
7837 selection.collapse_to(cursor, goal);
7838 });
7839 });
7840
7841 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7842 {
7843 cx.propagate();
7844 }
7845 }
7846
7847 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7848 let Some(row_count) = self.visible_row_count() else {
7849 return;
7850 };
7851
7852 let text_layout_details = &self.text_layout_details(cx);
7853
7854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7855 s.move_heads_with(|map, head, goal| {
7856 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7857 })
7858 })
7859 }
7860
7861 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7862 if self.take_rename(true, cx).is_some() {
7863 return;
7864 }
7865
7866 if self
7867 .context_menu
7868 .write()
7869 .as_mut()
7870 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7871 .unwrap_or(false)
7872 {
7873 return;
7874 }
7875
7876 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7877 cx.propagate();
7878 return;
7879 }
7880
7881 let Some(row_count) = self.visible_row_count() else {
7882 return;
7883 };
7884
7885 let autoscroll = if action.center_cursor {
7886 Autoscroll::center()
7887 } else {
7888 Autoscroll::fit()
7889 };
7890
7891 let text_layout_details = &self.text_layout_details(cx);
7892 self.change_selections(Some(autoscroll), cx, |s| {
7893 let line_mode = s.line_mode;
7894 s.move_with(|map, selection| {
7895 if !selection.is_empty() && !line_mode {
7896 selection.goal = SelectionGoal::None;
7897 }
7898 let (cursor, goal) = movement::down_by_rows(
7899 map,
7900 selection.end,
7901 row_count,
7902 selection.goal,
7903 false,
7904 text_layout_details,
7905 );
7906 selection.collapse_to(cursor, goal);
7907 });
7908 });
7909 }
7910
7911 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7912 let text_layout_details = &self.text_layout_details(cx);
7913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7914 s.move_heads_with(|map, head, goal| {
7915 movement::down(map, head, goal, false, text_layout_details)
7916 })
7917 });
7918 }
7919
7920 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7921 if let Some(context_menu) = self.context_menu.write().as_mut() {
7922 context_menu.select_first(self.completion_provider.as_deref(), cx);
7923 }
7924 }
7925
7926 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7927 if let Some(context_menu) = self.context_menu.write().as_mut() {
7928 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7929 }
7930 }
7931
7932 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7933 if let Some(context_menu) = self.context_menu.write().as_mut() {
7934 context_menu.select_next(self.completion_provider.as_deref(), cx);
7935 }
7936 }
7937
7938 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7939 if let Some(context_menu) = self.context_menu.write().as_mut() {
7940 context_menu.select_last(self.completion_provider.as_deref(), cx);
7941 }
7942 }
7943
7944 pub fn move_to_previous_word_start(
7945 &mut self,
7946 _: &MoveToPreviousWordStart,
7947 cx: &mut ViewContext<Self>,
7948 ) {
7949 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7950 s.move_cursors_with(|map, head, _| {
7951 (
7952 movement::previous_word_start(map, head),
7953 SelectionGoal::None,
7954 )
7955 });
7956 })
7957 }
7958
7959 pub fn move_to_previous_subword_start(
7960 &mut self,
7961 _: &MoveToPreviousSubwordStart,
7962 cx: &mut ViewContext<Self>,
7963 ) {
7964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7965 s.move_cursors_with(|map, head, _| {
7966 (
7967 movement::previous_subword_start(map, head),
7968 SelectionGoal::None,
7969 )
7970 });
7971 })
7972 }
7973
7974 pub fn select_to_previous_word_start(
7975 &mut self,
7976 _: &SelectToPreviousWordStart,
7977 cx: &mut ViewContext<Self>,
7978 ) {
7979 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7980 s.move_heads_with(|map, head, _| {
7981 (
7982 movement::previous_word_start(map, head),
7983 SelectionGoal::None,
7984 )
7985 });
7986 })
7987 }
7988
7989 pub fn select_to_previous_subword_start(
7990 &mut self,
7991 _: &SelectToPreviousSubwordStart,
7992 cx: &mut ViewContext<Self>,
7993 ) {
7994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7995 s.move_heads_with(|map, head, _| {
7996 (
7997 movement::previous_subword_start(map, head),
7998 SelectionGoal::None,
7999 )
8000 });
8001 })
8002 }
8003
8004 pub fn delete_to_previous_word_start(
8005 &mut self,
8006 action: &DeleteToPreviousWordStart,
8007 cx: &mut ViewContext<Self>,
8008 ) {
8009 self.transact(cx, |this, cx| {
8010 this.select_autoclose_pair(cx);
8011 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8012 let line_mode = s.line_mode;
8013 s.move_with(|map, selection| {
8014 if selection.is_empty() && !line_mode {
8015 let cursor = if action.ignore_newlines {
8016 movement::previous_word_start(map, selection.head())
8017 } else {
8018 movement::previous_word_start_or_newline(map, selection.head())
8019 };
8020 selection.set_head(cursor, SelectionGoal::None);
8021 }
8022 });
8023 });
8024 this.insert("", cx);
8025 });
8026 }
8027
8028 pub fn delete_to_previous_subword_start(
8029 &mut self,
8030 _: &DeleteToPreviousSubwordStart,
8031 cx: &mut ViewContext<Self>,
8032 ) {
8033 self.transact(cx, |this, cx| {
8034 this.select_autoclose_pair(cx);
8035 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8036 let line_mode = s.line_mode;
8037 s.move_with(|map, selection| {
8038 if selection.is_empty() && !line_mode {
8039 let cursor = movement::previous_subword_start(map, selection.head());
8040 selection.set_head(cursor, SelectionGoal::None);
8041 }
8042 });
8043 });
8044 this.insert("", cx);
8045 });
8046 }
8047
8048 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8049 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8050 s.move_cursors_with(|map, head, _| {
8051 (movement::next_word_end(map, head), SelectionGoal::None)
8052 });
8053 })
8054 }
8055
8056 pub fn move_to_next_subword_end(
8057 &mut self,
8058 _: &MoveToNextSubwordEnd,
8059 cx: &mut ViewContext<Self>,
8060 ) {
8061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8062 s.move_cursors_with(|map, head, _| {
8063 (movement::next_subword_end(map, head), SelectionGoal::None)
8064 });
8065 })
8066 }
8067
8068 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 s.move_heads_with(|map, head, _| {
8071 (movement::next_word_end(map, head), SelectionGoal::None)
8072 });
8073 })
8074 }
8075
8076 pub fn select_to_next_subword_end(
8077 &mut self,
8078 _: &SelectToNextSubwordEnd,
8079 cx: &mut ViewContext<Self>,
8080 ) {
8081 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8082 s.move_heads_with(|map, head, _| {
8083 (movement::next_subword_end(map, head), SelectionGoal::None)
8084 });
8085 })
8086 }
8087
8088 pub fn delete_to_next_word_end(
8089 &mut self,
8090 action: &DeleteToNextWordEnd,
8091 cx: &mut ViewContext<Self>,
8092 ) {
8093 self.transact(cx, |this, cx| {
8094 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8095 let line_mode = s.line_mode;
8096 s.move_with(|map, selection| {
8097 if selection.is_empty() && !line_mode {
8098 let cursor = if action.ignore_newlines {
8099 movement::next_word_end(map, selection.head())
8100 } else {
8101 movement::next_word_end_or_newline(map, selection.head())
8102 };
8103 selection.set_head(cursor, SelectionGoal::None);
8104 }
8105 });
8106 });
8107 this.insert("", cx);
8108 });
8109 }
8110
8111 pub fn delete_to_next_subword_end(
8112 &mut self,
8113 _: &DeleteToNextSubwordEnd,
8114 cx: &mut ViewContext<Self>,
8115 ) {
8116 self.transact(cx, |this, cx| {
8117 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8118 s.move_with(|map, selection| {
8119 if selection.is_empty() {
8120 let cursor = movement::next_subword_end(map, selection.head());
8121 selection.set_head(cursor, SelectionGoal::None);
8122 }
8123 });
8124 });
8125 this.insert("", cx);
8126 });
8127 }
8128
8129 pub fn move_to_beginning_of_line(
8130 &mut self,
8131 action: &MoveToBeginningOfLine,
8132 cx: &mut ViewContext<Self>,
8133 ) {
8134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8135 s.move_cursors_with(|map, head, _| {
8136 (
8137 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8138 SelectionGoal::None,
8139 )
8140 });
8141 })
8142 }
8143
8144 pub fn select_to_beginning_of_line(
8145 &mut self,
8146 action: &SelectToBeginningOfLine,
8147 cx: &mut ViewContext<Self>,
8148 ) {
8149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8150 s.move_heads_with(|map, head, _| {
8151 (
8152 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8153 SelectionGoal::None,
8154 )
8155 });
8156 });
8157 }
8158
8159 pub fn delete_to_beginning_of_line(
8160 &mut self,
8161 _: &DeleteToBeginningOfLine,
8162 cx: &mut ViewContext<Self>,
8163 ) {
8164 self.transact(cx, |this, cx| {
8165 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8166 s.move_with(|_, selection| {
8167 selection.reversed = true;
8168 });
8169 });
8170
8171 this.select_to_beginning_of_line(
8172 &SelectToBeginningOfLine {
8173 stop_at_soft_wraps: false,
8174 },
8175 cx,
8176 );
8177 this.backspace(&Backspace, cx);
8178 });
8179 }
8180
8181 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8182 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8183 s.move_cursors_with(|map, head, _| {
8184 (
8185 movement::line_end(map, head, action.stop_at_soft_wraps),
8186 SelectionGoal::None,
8187 )
8188 });
8189 })
8190 }
8191
8192 pub fn select_to_end_of_line(
8193 &mut self,
8194 action: &SelectToEndOfLine,
8195 cx: &mut ViewContext<Self>,
8196 ) {
8197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8198 s.move_heads_with(|map, head, _| {
8199 (
8200 movement::line_end(map, head, action.stop_at_soft_wraps),
8201 SelectionGoal::None,
8202 )
8203 });
8204 })
8205 }
8206
8207 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8208 self.transact(cx, |this, cx| {
8209 this.select_to_end_of_line(
8210 &SelectToEndOfLine {
8211 stop_at_soft_wraps: false,
8212 },
8213 cx,
8214 );
8215 this.delete(&Delete, cx);
8216 });
8217 }
8218
8219 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8220 self.transact(cx, |this, cx| {
8221 this.select_to_end_of_line(
8222 &SelectToEndOfLine {
8223 stop_at_soft_wraps: false,
8224 },
8225 cx,
8226 );
8227 this.cut(&Cut, cx);
8228 });
8229 }
8230
8231 pub fn move_to_start_of_paragraph(
8232 &mut self,
8233 _: &MoveToStartOfParagraph,
8234 cx: &mut ViewContext<Self>,
8235 ) {
8236 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8237 cx.propagate();
8238 return;
8239 }
8240
8241 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8242 s.move_with(|map, selection| {
8243 selection.collapse_to(
8244 movement::start_of_paragraph(map, selection.head(), 1),
8245 SelectionGoal::None,
8246 )
8247 });
8248 })
8249 }
8250
8251 pub fn move_to_end_of_paragraph(
8252 &mut self,
8253 _: &MoveToEndOfParagraph,
8254 cx: &mut ViewContext<Self>,
8255 ) {
8256 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8257 cx.propagate();
8258 return;
8259 }
8260
8261 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8262 s.move_with(|map, selection| {
8263 selection.collapse_to(
8264 movement::end_of_paragraph(map, selection.head(), 1),
8265 SelectionGoal::None,
8266 )
8267 });
8268 })
8269 }
8270
8271 pub fn select_to_start_of_paragraph(
8272 &mut self,
8273 _: &SelectToStartOfParagraph,
8274 cx: &mut ViewContext<Self>,
8275 ) {
8276 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8277 cx.propagate();
8278 return;
8279 }
8280
8281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8282 s.move_heads_with(|map, head, _| {
8283 (
8284 movement::start_of_paragraph(map, head, 1),
8285 SelectionGoal::None,
8286 )
8287 });
8288 })
8289 }
8290
8291 pub fn select_to_end_of_paragraph(
8292 &mut self,
8293 _: &SelectToEndOfParagraph,
8294 cx: &mut ViewContext<Self>,
8295 ) {
8296 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8297 cx.propagate();
8298 return;
8299 }
8300
8301 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8302 s.move_heads_with(|map, head, _| {
8303 (
8304 movement::end_of_paragraph(map, head, 1),
8305 SelectionGoal::None,
8306 )
8307 });
8308 })
8309 }
8310
8311 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8312 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8313 cx.propagate();
8314 return;
8315 }
8316
8317 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8318 s.select_ranges(vec![0..0]);
8319 });
8320 }
8321
8322 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8323 let mut selection = self.selections.last::<Point>(cx);
8324 selection.set_head(Point::zero(), SelectionGoal::None);
8325
8326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8327 s.select(vec![selection]);
8328 });
8329 }
8330
8331 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8332 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8333 cx.propagate();
8334 return;
8335 }
8336
8337 let cursor = self.buffer.read(cx).read(cx).len();
8338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8339 s.select_ranges(vec![cursor..cursor])
8340 });
8341 }
8342
8343 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8344 self.nav_history = nav_history;
8345 }
8346
8347 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8348 self.nav_history.as_ref()
8349 }
8350
8351 fn push_to_nav_history(
8352 &mut self,
8353 cursor_anchor: Anchor,
8354 new_position: Option<Point>,
8355 cx: &mut ViewContext<Self>,
8356 ) {
8357 if let Some(nav_history) = self.nav_history.as_mut() {
8358 let buffer = self.buffer.read(cx).read(cx);
8359 let cursor_position = cursor_anchor.to_point(&buffer);
8360 let scroll_state = self.scroll_manager.anchor();
8361 let scroll_top_row = scroll_state.top_row(&buffer);
8362 drop(buffer);
8363
8364 if let Some(new_position) = new_position {
8365 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8366 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8367 return;
8368 }
8369 }
8370
8371 nav_history.push(
8372 Some(NavigationData {
8373 cursor_anchor,
8374 cursor_position,
8375 scroll_anchor: scroll_state,
8376 scroll_top_row,
8377 }),
8378 cx,
8379 );
8380 }
8381 }
8382
8383 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8384 let buffer = self.buffer.read(cx).snapshot(cx);
8385 let mut selection = self.selections.first::<usize>(cx);
8386 selection.set_head(buffer.len(), SelectionGoal::None);
8387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8388 s.select(vec![selection]);
8389 });
8390 }
8391
8392 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8393 let end = self.buffer.read(cx).read(cx).len();
8394 self.change_selections(None, cx, |s| {
8395 s.select_ranges(vec![0..end]);
8396 });
8397 }
8398
8399 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8400 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8401 let mut selections = self.selections.all::<Point>(cx);
8402 let max_point = display_map.buffer_snapshot.max_point();
8403 for selection in &mut selections {
8404 let rows = selection.spanned_rows(true, &display_map);
8405 selection.start = Point::new(rows.start.0, 0);
8406 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8407 selection.reversed = false;
8408 }
8409 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8410 s.select(selections);
8411 });
8412 }
8413
8414 pub fn split_selection_into_lines(
8415 &mut self,
8416 _: &SplitSelectionIntoLines,
8417 cx: &mut ViewContext<Self>,
8418 ) {
8419 let mut to_unfold = Vec::new();
8420 let mut new_selection_ranges = Vec::new();
8421 {
8422 let selections = self.selections.all::<Point>(cx);
8423 let buffer = self.buffer.read(cx).read(cx);
8424 for selection in selections {
8425 for row in selection.start.row..selection.end.row {
8426 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8427 new_selection_ranges.push(cursor..cursor);
8428 }
8429 new_selection_ranges.push(selection.end..selection.end);
8430 to_unfold.push(selection.start..selection.end);
8431 }
8432 }
8433 self.unfold_ranges(&to_unfold, true, true, cx);
8434 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8435 s.select_ranges(new_selection_ranges);
8436 });
8437 }
8438
8439 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8440 self.add_selection(true, cx);
8441 }
8442
8443 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8444 self.add_selection(false, cx);
8445 }
8446
8447 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8448 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8449 let mut selections = self.selections.all::<Point>(cx);
8450 let text_layout_details = self.text_layout_details(cx);
8451 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8452 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8453 let range = oldest_selection.display_range(&display_map).sorted();
8454
8455 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8456 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8457 let positions = start_x.min(end_x)..start_x.max(end_x);
8458
8459 selections.clear();
8460 let mut stack = Vec::new();
8461 for row in range.start.row().0..=range.end.row().0 {
8462 if let Some(selection) = self.selections.build_columnar_selection(
8463 &display_map,
8464 DisplayRow(row),
8465 &positions,
8466 oldest_selection.reversed,
8467 &text_layout_details,
8468 ) {
8469 stack.push(selection.id);
8470 selections.push(selection);
8471 }
8472 }
8473
8474 if above {
8475 stack.reverse();
8476 }
8477
8478 AddSelectionsState { above, stack }
8479 });
8480
8481 let last_added_selection = *state.stack.last().unwrap();
8482 let mut new_selections = Vec::new();
8483 if above == state.above {
8484 let end_row = if above {
8485 DisplayRow(0)
8486 } else {
8487 display_map.max_point().row()
8488 };
8489
8490 'outer: for selection in selections {
8491 if selection.id == last_added_selection {
8492 let range = selection.display_range(&display_map).sorted();
8493 debug_assert_eq!(range.start.row(), range.end.row());
8494 let mut row = range.start.row();
8495 let positions =
8496 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8497 px(start)..px(end)
8498 } else {
8499 let start_x =
8500 display_map.x_for_display_point(range.start, &text_layout_details);
8501 let end_x =
8502 display_map.x_for_display_point(range.end, &text_layout_details);
8503 start_x.min(end_x)..start_x.max(end_x)
8504 };
8505
8506 while row != end_row {
8507 if above {
8508 row.0 -= 1;
8509 } else {
8510 row.0 += 1;
8511 }
8512
8513 if let Some(new_selection) = self.selections.build_columnar_selection(
8514 &display_map,
8515 row,
8516 &positions,
8517 selection.reversed,
8518 &text_layout_details,
8519 ) {
8520 state.stack.push(new_selection.id);
8521 if above {
8522 new_selections.push(new_selection);
8523 new_selections.push(selection);
8524 } else {
8525 new_selections.push(selection);
8526 new_selections.push(new_selection);
8527 }
8528
8529 continue 'outer;
8530 }
8531 }
8532 }
8533
8534 new_selections.push(selection);
8535 }
8536 } else {
8537 new_selections = selections;
8538 new_selections.retain(|s| s.id != last_added_selection);
8539 state.stack.pop();
8540 }
8541
8542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8543 s.select(new_selections);
8544 });
8545 if state.stack.len() > 1 {
8546 self.add_selections_state = Some(state);
8547 }
8548 }
8549
8550 pub fn select_next_match_internal(
8551 &mut self,
8552 display_map: &DisplaySnapshot,
8553 replace_newest: bool,
8554 autoscroll: Option<Autoscroll>,
8555 cx: &mut ViewContext<Self>,
8556 ) -> Result<()> {
8557 fn select_next_match_ranges(
8558 this: &mut Editor,
8559 range: Range<usize>,
8560 replace_newest: bool,
8561 auto_scroll: Option<Autoscroll>,
8562 cx: &mut ViewContext<Editor>,
8563 ) {
8564 this.unfold_ranges(&[range.clone()], false, true, cx);
8565 this.change_selections(auto_scroll, cx, |s| {
8566 if replace_newest {
8567 s.delete(s.newest_anchor().id);
8568 }
8569 s.insert_range(range.clone());
8570 });
8571 }
8572
8573 let buffer = &display_map.buffer_snapshot;
8574 let mut selections = self.selections.all::<usize>(cx);
8575 if let Some(mut select_next_state) = self.select_next_state.take() {
8576 let query = &select_next_state.query;
8577 if !select_next_state.done {
8578 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8579 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8580 let mut next_selected_range = None;
8581
8582 let bytes_after_last_selection =
8583 buffer.bytes_in_range(last_selection.end..buffer.len());
8584 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8585 let query_matches = query
8586 .stream_find_iter(bytes_after_last_selection)
8587 .map(|result| (last_selection.end, result))
8588 .chain(
8589 query
8590 .stream_find_iter(bytes_before_first_selection)
8591 .map(|result| (0, result)),
8592 );
8593
8594 for (start_offset, query_match) in query_matches {
8595 let query_match = query_match.unwrap(); // can only fail due to I/O
8596 let offset_range =
8597 start_offset + query_match.start()..start_offset + query_match.end();
8598 let display_range = offset_range.start.to_display_point(display_map)
8599 ..offset_range.end.to_display_point(display_map);
8600
8601 if !select_next_state.wordwise
8602 || (!movement::is_inside_word(display_map, display_range.start)
8603 && !movement::is_inside_word(display_map, display_range.end))
8604 {
8605 // TODO: This is n^2, because we might check all the selections
8606 if !selections
8607 .iter()
8608 .any(|selection| selection.range().overlaps(&offset_range))
8609 {
8610 next_selected_range = Some(offset_range);
8611 break;
8612 }
8613 }
8614 }
8615
8616 if let Some(next_selected_range) = next_selected_range {
8617 select_next_match_ranges(
8618 self,
8619 next_selected_range,
8620 replace_newest,
8621 autoscroll,
8622 cx,
8623 );
8624 } else {
8625 select_next_state.done = true;
8626 }
8627 }
8628
8629 self.select_next_state = Some(select_next_state);
8630 } else {
8631 let mut only_carets = true;
8632 let mut same_text_selected = true;
8633 let mut selected_text = None;
8634
8635 let mut selections_iter = selections.iter().peekable();
8636 while let Some(selection) = selections_iter.next() {
8637 if selection.start != selection.end {
8638 only_carets = false;
8639 }
8640
8641 if same_text_selected {
8642 if selected_text.is_none() {
8643 selected_text =
8644 Some(buffer.text_for_range(selection.range()).collect::<String>());
8645 }
8646
8647 if let Some(next_selection) = selections_iter.peek() {
8648 if next_selection.range().len() == selection.range().len() {
8649 let next_selected_text = buffer
8650 .text_for_range(next_selection.range())
8651 .collect::<String>();
8652 if Some(next_selected_text) != selected_text {
8653 same_text_selected = false;
8654 selected_text = None;
8655 }
8656 } else {
8657 same_text_selected = false;
8658 selected_text = None;
8659 }
8660 }
8661 }
8662 }
8663
8664 if only_carets {
8665 for selection in &mut selections {
8666 let word_range = movement::surrounding_word(
8667 display_map,
8668 selection.start.to_display_point(display_map),
8669 );
8670 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8671 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8672 selection.goal = SelectionGoal::None;
8673 selection.reversed = false;
8674 select_next_match_ranges(
8675 self,
8676 selection.start..selection.end,
8677 replace_newest,
8678 autoscroll,
8679 cx,
8680 );
8681 }
8682
8683 if selections.len() == 1 {
8684 let selection = selections
8685 .last()
8686 .expect("ensured that there's only one selection");
8687 let query = buffer
8688 .text_for_range(selection.start..selection.end)
8689 .collect::<String>();
8690 let is_empty = query.is_empty();
8691 let select_state = SelectNextState {
8692 query: AhoCorasick::new(&[query])?,
8693 wordwise: true,
8694 done: is_empty,
8695 };
8696 self.select_next_state = Some(select_state);
8697 } else {
8698 self.select_next_state = None;
8699 }
8700 } else if let Some(selected_text) = selected_text {
8701 self.select_next_state = Some(SelectNextState {
8702 query: AhoCorasick::new(&[selected_text])?,
8703 wordwise: false,
8704 done: false,
8705 });
8706 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8707 }
8708 }
8709 Ok(())
8710 }
8711
8712 pub fn select_all_matches(
8713 &mut self,
8714 _action: &SelectAllMatches,
8715 cx: &mut ViewContext<Self>,
8716 ) -> Result<()> {
8717 self.push_to_selection_history();
8718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8719
8720 self.select_next_match_internal(&display_map, false, None, cx)?;
8721 let Some(select_next_state) = self.select_next_state.as_mut() else {
8722 return Ok(());
8723 };
8724 if select_next_state.done {
8725 return Ok(());
8726 }
8727
8728 let mut new_selections = self.selections.all::<usize>(cx);
8729
8730 let buffer = &display_map.buffer_snapshot;
8731 let query_matches = select_next_state
8732 .query
8733 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8734
8735 for query_match in query_matches {
8736 let query_match = query_match.unwrap(); // can only fail due to I/O
8737 let offset_range = query_match.start()..query_match.end();
8738 let display_range = offset_range.start.to_display_point(&display_map)
8739 ..offset_range.end.to_display_point(&display_map);
8740
8741 if !select_next_state.wordwise
8742 || (!movement::is_inside_word(&display_map, display_range.start)
8743 && !movement::is_inside_word(&display_map, display_range.end))
8744 {
8745 self.selections.change_with(cx, |selections| {
8746 new_selections.push(Selection {
8747 id: selections.new_selection_id(),
8748 start: offset_range.start,
8749 end: offset_range.end,
8750 reversed: false,
8751 goal: SelectionGoal::None,
8752 });
8753 });
8754 }
8755 }
8756
8757 new_selections.sort_by_key(|selection| selection.start);
8758 let mut ix = 0;
8759 while ix + 1 < new_selections.len() {
8760 let current_selection = &new_selections[ix];
8761 let next_selection = &new_selections[ix + 1];
8762 if current_selection.range().overlaps(&next_selection.range()) {
8763 if current_selection.id < next_selection.id {
8764 new_selections.remove(ix + 1);
8765 } else {
8766 new_selections.remove(ix);
8767 }
8768 } else {
8769 ix += 1;
8770 }
8771 }
8772
8773 select_next_state.done = true;
8774 self.unfold_ranges(
8775 &new_selections
8776 .iter()
8777 .map(|selection| selection.range())
8778 .collect::<Vec<_>>(),
8779 false,
8780 false,
8781 cx,
8782 );
8783 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8784 selections.select(new_selections)
8785 });
8786
8787 Ok(())
8788 }
8789
8790 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8791 self.push_to_selection_history();
8792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8793 self.select_next_match_internal(
8794 &display_map,
8795 action.replace_newest,
8796 Some(Autoscroll::newest()),
8797 cx,
8798 )?;
8799 Ok(())
8800 }
8801
8802 pub fn select_previous(
8803 &mut self,
8804 action: &SelectPrevious,
8805 cx: &mut ViewContext<Self>,
8806 ) -> Result<()> {
8807 self.push_to_selection_history();
8808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8809 let buffer = &display_map.buffer_snapshot;
8810 let mut selections = self.selections.all::<usize>(cx);
8811 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8812 let query = &select_prev_state.query;
8813 if !select_prev_state.done {
8814 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8815 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8816 let mut next_selected_range = None;
8817 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8818 let bytes_before_last_selection =
8819 buffer.reversed_bytes_in_range(0..last_selection.start);
8820 let bytes_after_first_selection =
8821 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8822 let query_matches = query
8823 .stream_find_iter(bytes_before_last_selection)
8824 .map(|result| (last_selection.start, result))
8825 .chain(
8826 query
8827 .stream_find_iter(bytes_after_first_selection)
8828 .map(|result| (buffer.len(), result)),
8829 );
8830 for (end_offset, query_match) in query_matches {
8831 let query_match = query_match.unwrap(); // can only fail due to I/O
8832 let offset_range =
8833 end_offset - query_match.end()..end_offset - query_match.start();
8834 let display_range = offset_range.start.to_display_point(&display_map)
8835 ..offset_range.end.to_display_point(&display_map);
8836
8837 if !select_prev_state.wordwise
8838 || (!movement::is_inside_word(&display_map, display_range.start)
8839 && !movement::is_inside_word(&display_map, display_range.end))
8840 {
8841 next_selected_range = Some(offset_range);
8842 break;
8843 }
8844 }
8845
8846 if let Some(next_selected_range) = next_selected_range {
8847 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8848 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8849 if action.replace_newest {
8850 s.delete(s.newest_anchor().id);
8851 }
8852 s.insert_range(next_selected_range);
8853 });
8854 } else {
8855 select_prev_state.done = true;
8856 }
8857 }
8858
8859 self.select_prev_state = Some(select_prev_state);
8860 } else {
8861 let mut only_carets = true;
8862 let mut same_text_selected = true;
8863 let mut selected_text = None;
8864
8865 let mut selections_iter = selections.iter().peekable();
8866 while let Some(selection) = selections_iter.next() {
8867 if selection.start != selection.end {
8868 only_carets = false;
8869 }
8870
8871 if same_text_selected {
8872 if selected_text.is_none() {
8873 selected_text =
8874 Some(buffer.text_for_range(selection.range()).collect::<String>());
8875 }
8876
8877 if let Some(next_selection) = selections_iter.peek() {
8878 if next_selection.range().len() == selection.range().len() {
8879 let next_selected_text = buffer
8880 .text_for_range(next_selection.range())
8881 .collect::<String>();
8882 if Some(next_selected_text) != selected_text {
8883 same_text_selected = false;
8884 selected_text = None;
8885 }
8886 } else {
8887 same_text_selected = false;
8888 selected_text = None;
8889 }
8890 }
8891 }
8892 }
8893
8894 if only_carets {
8895 for selection in &mut selections {
8896 let word_range = movement::surrounding_word(
8897 &display_map,
8898 selection.start.to_display_point(&display_map),
8899 );
8900 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8901 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8902 selection.goal = SelectionGoal::None;
8903 selection.reversed = false;
8904 }
8905 if selections.len() == 1 {
8906 let selection = selections
8907 .last()
8908 .expect("ensured that there's only one selection");
8909 let query = buffer
8910 .text_for_range(selection.start..selection.end)
8911 .collect::<String>();
8912 let is_empty = query.is_empty();
8913 let select_state = SelectNextState {
8914 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8915 wordwise: true,
8916 done: is_empty,
8917 };
8918 self.select_prev_state = Some(select_state);
8919 } else {
8920 self.select_prev_state = None;
8921 }
8922
8923 self.unfold_ranges(
8924 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8925 false,
8926 true,
8927 cx,
8928 );
8929 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8930 s.select(selections);
8931 });
8932 } else if let Some(selected_text) = selected_text {
8933 self.select_prev_state = Some(SelectNextState {
8934 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8935 wordwise: false,
8936 done: false,
8937 });
8938 self.select_previous(action, cx)?;
8939 }
8940 }
8941 Ok(())
8942 }
8943
8944 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8945 if self.read_only(cx) {
8946 return;
8947 }
8948 let text_layout_details = &self.text_layout_details(cx);
8949 self.transact(cx, |this, cx| {
8950 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8951 let mut edits = Vec::new();
8952 let mut selection_edit_ranges = Vec::new();
8953 let mut last_toggled_row = None;
8954 let snapshot = this.buffer.read(cx).read(cx);
8955 let empty_str: Arc<str> = Arc::default();
8956 let mut suffixes_inserted = Vec::new();
8957 let ignore_indent = action.ignore_indent;
8958
8959 fn comment_prefix_range(
8960 snapshot: &MultiBufferSnapshot,
8961 row: MultiBufferRow,
8962 comment_prefix: &str,
8963 comment_prefix_whitespace: &str,
8964 ignore_indent: bool,
8965 ) -> Range<Point> {
8966 let indent_size = if ignore_indent {
8967 0
8968 } else {
8969 snapshot.indent_size_for_line(row).len
8970 };
8971
8972 let start = Point::new(row.0, indent_size);
8973
8974 let mut line_bytes = snapshot
8975 .bytes_in_range(start..snapshot.max_point())
8976 .flatten()
8977 .copied();
8978
8979 // If this line currently begins with the line comment prefix, then record
8980 // the range containing the prefix.
8981 if line_bytes
8982 .by_ref()
8983 .take(comment_prefix.len())
8984 .eq(comment_prefix.bytes())
8985 {
8986 // Include any whitespace that matches the comment prefix.
8987 let matching_whitespace_len = line_bytes
8988 .zip(comment_prefix_whitespace.bytes())
8989 .take_while(|(a, b)| a == b)
8990 .count() as u32;
8991 let end = Point::new(
8992 start.row,
8993 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8994 );
8995 start..end
8996 } else {
8997 start..start
8998 }
8999 }
9000
9001 fn comment_suffix_range(
9002 snapshot: &MultiBufferSnapshot,
9003 row: MultiBufferRow,
9004 comment_suffix: &str,
9005 comment_suffix_has_leading_space: bool,
9006 ) -> Range<Point> {
9007 let end = Point::new(row.0, snapshot.line_len(row));
9008 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9009
9010 let mut line_end_bytes = snapshot
9011 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9012 .flatten()
9013 .copied();
9014
9015 let leading_space_len = if suffix_start_column > 0
9016 && line_end_bytes.next() == Some(b' ')
9017 && comment_suffix_has_leading_space
9018 {
9019 1
9020 } else {
9021 0
9022 };
9023
9024 // If this line currently begins with the line comment prefix, then record
9025 // the range containing the prefix.
9026 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9027 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9028 start..end
9029 } else {
9030 end..end
9031 }
9032 }
9033
9034 // TODO: Handle selections that cross excerpts
9035 for selection in &mut selections {
9036 let start_column = snapshot
9037 .indent_size_for_line(MultiBufferRow(selection.start.row))
9038 .len;
9039 let language = if let Some(language) =
9040 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9041 {
9042 language
9043 } else {
9044 continue;
9045 };
9046
9047 selection_edit_ranges.clear();
9048
9049 // If multiple selections contain a given row, avoid processing that
9050 // row more than once.
9051 let mut start_row = MultiBufferRow(selection.start.row);
9052 if last_toggled_row == Some(start_row) {
9053 start_row = start_row.next_row();
9054 }
9055 let end_row =
9056 if selection.end.row > selection.start.row && selection.end.column == 0 {
9057 MultiBufferRow(selection.end.row - 1)
9058 } else {
9059 MultiBufferRow(selection.end.row)
9060 };
9061 last_toggled_row = Some(end_row);
9062
9063 if start_row > end_row {
9064 continue;
9065 }
9066
9067 // If the language has line comments, toggle those.
9068 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9069
9070 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9071 if ignore_indent {
9072 full_comment_prefixes = full_comment_prefixes
9073 .into_iter()
9074 .map(|s| Arc::from(s.trim_end()))
9075 .collect();
9076 }
9077
9078 if !full_comment_prefixes.is_empty() {
9079 let first_prefix = full_comment_prefixes
9080 .first()
9081 .expect("prefixes is non-empty");
9082 let prefix_trimmed_lengths = full_comment_prefixes
9083 .iter()
9084 .map(|p| p.trim_end_matches(' ').len())
9085 .collect::<SmallVec<[usize; 4]>>();
9086
9087 let mut all_selection_lines_are_comments = true;
9088
9089 for row in start_row.0..=end_row.0 {
9090 let row = MultiBufferRow(row);
9091 if start_row < end_row && snapshot.is_line_blank(row) {
9092 continue;
9093 }
9094
9095 let prefix_range = full_comment_prefixes
9096 .iter()
9097 .zip(prefix_trimmed_lengths.iter().copied())
9098 .map(|(prefix, trimmed_prefix_len)| {
9099 comment_prefix_range(
9100 snapshot.deref(),
9101 row,
9102 &prefix[..trimmed_prefix_len],
9103 &prefix[trimmed_prefix_len..],
9104 ignore_indent,
9105 )
9106 })
9107 .max_by_key(|range| range.end.column - range.start.column)
9108 .expect("prefixes is non-empty");
9109
9110 if prefix_range.is_empty() {
9111 all_selection_lines_are_comments = false;
9112 }
9113
9114 selection_edit_ranges.push(prefix_range);
9115 }
9116
9117 if all_selection_lines_are_comments {
9118 edits.extend(
9119 selection_edit_ranges
9120 .iter()
9121 .cloned()
9122 .map(|range| (range, empty_str.clone())),
9123 );
9124 } else {
9125 let min_column = selection_edit_ranges
9126 .iter()
9127 .map(|range| range.start.column)
9128 .min()
9129 .unwrap_or(0);
9130 edits.extend(selection_edit_ranges.iter().map(|range| {
9131 let position = Point::new(range.start.row, min_column);
9132 (position..position, first_prefix.clone())
9133 }));
9134 }
9135 } else if let Some((full_comment_prefix, comment_suffix)) =
9136 language.block_comment_delimiters()
9137 {
9138 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9139 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9140 let prefix_range = comment_prefix_range(
9141 snapshot.deref(),
9142 start_row,
9143 comment_prefix,
9144 comment_prefix_whitespace,
9145 ignore_indent,
9146 );
9147 let suffix_range = comment_suffix_range(
9148 snapshot.deref(),
9149 end_row,
9150 comment_suffix.trim_start_matches(' '),
9151 comment_suffix.starts_with(' '),
9152 );
9153
9154 if prefix_range.is_empty() || suffix_range.is_empty() {
9155 edits.push((
9156 prefix_range.start..prefix_range.start,
9157 full_comment_prefix.clone(),
9158 ));
9159 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9160 suffixes_inserted.push((end_row, comment_suffix.len()));
9161 } else {
9162 edits.push((prefix_range, empty_str.clone()));
9163 edits.push((suffix_range, empty_str.clone()));
9164 }
9165 } else {
9166 continue;
9167 }
9168 }
9169
9170 drop(snapshot);
9171 this.buffer.update(cx, |buffer, cx| {
9172 buffer.edit(edits, None, cx);
9173 });
9174
9175 // Adjust selections so that they end before any comment suffixes that
9176 // were inserted.
9177 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9178 let mut selections = this.selections.all::<Point>(cx);
9179 let snapshot = this.buffer.read(cx).read(cx);
9180 for selection in &mut selections {
9181 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9182 match row.cmp(&MultiBufferRow(selection.end.row)) {
9183 Ordering::Less => {
9184 suffixes_inserted.next();
9185 continue;
9186 }
9187 Ordering::Greater => break,
9188 Ordering::Equal => {
9189 if selection.end.column == snapshot.line_len(row) {
9190 if selection.is_empty() {
9191 selection.start.column -= suffix_len as u32;
9192 }
9193 selection.end.column -= suffix_len as u32;
9194 }
9195 break;
9196 }
9197 }
9198 }
9199 }
9200
9201 drop(snapshot);
9202 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9203
9204 let selections = this.selections.all::<Point>(cx);
9205 let selections_on_single_row = selections.windows(2).all(|selections| {
9206 selections[0].start.row == selections[1].start.row
9207 && selections[0].end.row == selections[1].end.row
9208 && selections[0].start.row == selections[0].end.row
9209 });
9210 let selections_selecting = selections
9211 .iter()
9212 .any(|selection| selection.start != selection.end);
9213 let advance_downwards = action.advance_downwards
9214 && selections_on_single_row
9215 && !selections_selecting
9216 && !matches!(this.mode, EditorMode::SingleLine { .. });
9217
9218 if advance_downwards {
9219 let snapshot = this.buffer.read(cx).snapshot(cx);
9220
9221 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9222 s.move_cursors_with(|display_snapshot, display_point, _| {
9223 let mut point = display_point.to_point(display_snapshot);
9224 point.row += 1;
9225 point = snapshot.clip_point(point, Bias::Left);
9226 let display_point = point.to_display_point(display_snapshot);
9227 let goal = SelectionGoal::HorizontalPosition(
9228 display_snapshot
9229 .x_for_display_point(display_point, text_layout_details)
9230 .into(),
9231 );
9232 (display_point, goal)
9233 })
9234 });
9235 }
9236 });
9237 }
9238
9239 pub fn select_enclosing_symbol(
9240 &mut self,
9241 _: &SelectEnclosingSymbol,
9242 cx: &mut ViewContext<Self>,
9243 ) {
9244 let buffer = self.buffer.read(cx).snapshot(cx);
9245 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9246
9247 fn update_selection(
9248 selection: &Selection<usize>,
9249 buffer_snap: &MultiBufferSnapshot,
9250 ) -> Option<Selection<usize>> {
9251 let cursor = selection.head();
9252 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9253 for symbol in symbols.iter().rev() {
9254 let start = symbol.range.start.to_offset(buffer_snap);
9255 let end = symbol.range.end.to_offset(buffer_snap);
9256 let new_range = start..end;
9257 if start < selection.start || end > selection.end {
9258 return Some(Selection {
9259 id: selection.id,
9260 start: new_range.start,
9261 end: new_range.end,
9262 goal: SelectionGoal::None,
9263 reversed: selection.reversed,
9264 });
9265 }
9266 }
9267 None
9268 }
9269
9270 let mut selected_larger_symbol = false;
9271 let new_selections = old_selections
9272 .iter()
9273 .map(|selection| match update_selection(selection, &buffer) {
9274 Some(new_selection) => {
9275 if new_selection.range() != selection.range() {
9276 selected_larger_symbol = true;
9277 }
9278 new_selection
9279 }
9280 None => selection.clone(),
9281 })
9282 .collect::<Vec<_>>();
9283
9284 if selected_larger_symbol {
9285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9286 s.select(new_selections);
9287 });
9288 }
9289 }
9290
9291 pub fn select_larger_syntax_node(
9292 &mut self,
9293 _: &SelectLargerSyntaxNode,
9294 cx: &mut ViewContext<Self>,
9295 ) {
9296 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9297 let buffer = self.buffer.read(cx).snapshot(cx);
9298 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9299
9300 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9301 let mut selected_larger_node = false;
9302 let new_selections = old_selections
9303 .iter()
9304 .map(|selection| {
9305 let old_range = selection.start..selection.end;
9306 let mut new_range = old_range.clone();
9307 while let Some(containing_range) =
9308 buffer.range_for_syntax_ancestor(new_range.clone())
9309 {
9310 new_range = containing_range;
9311 if !display_map.intersects_fold(new_range.start)
9312 && !display_map.intersects_fold(new_range.end)
9313 {
9314 break;
9315 }
9316 }
9317
9318 selected_larger_node |= new_range != old_range;
9319 Selection {
9320 id: selection.id,
9321 start: new_range.start,
9322 end: new_range.end,
9323 goal: SelectionGoal::None,
9324 reversed: selection.reversed,
9325 }
9326 })
9327 .collect::<Vec<_>>();
9328
9329 if selected_larger_node {
9330 stack.push(old_selections);
9331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9332 s.select(new_selections);
9333 });
9334 }
9335 self.select_larger_syntax_node_stack = stack;
9336 }
9337
9338 pub fn select_smaller_syntax_node(
9339 &mut self,
9340 _: &SelectSmallerSyntaxNode,
9341 cx: &mut ViewContext<Self>,
9342 ) {
9343 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9344 if let Some(selections) = stack.pop() {
9345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9346 s.select(selections.to_vec());
9347 });
9348 }
9349 self.select_larger_syntax_node_stack = stack;
9350 }
9351
9352 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9353 if !EditorSettings::get_global(cx).gutter.runnables {
9354 self.clear_tasks();
9355 return Task::ready(());
9356 }
9357 let project = self.project.as_ref().map(Model::downgrade);
9358 cx.spawn(|this, mut cx| async move {
9359 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9360 let Some(project) = project.and_then(|p| p.upgrade()) else {
9361 return;
9362 };
9363 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9364 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9365 }) else {
9366 return;
9367 };
9368
9369 let hide_runnables = project
9370 .update(&mut cx, |project, cx| {
9371 // Do not display any test indicators in non-dev server remote projects.
9372 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9373 })
9374 .unwrap_or(true);
9375 if hide_runnables {
9376 return;
9377 }
9378 let new_rows =
9379 cx.background_executor()
9380 .spawn({
9381 let snapshot = display_snapshot.clone();
9382 async move {
9383 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9384 }
9385 })
9386 .await;
9387 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9388
9389 this.update(&mut cx, |this, _| {
9390 this.clear_tasks();
9391 for (key, value) in rows {
9392 this.insert_tasks(key, value);
9393 }
9394 })
9395 .ok();
9396 })
9397 }
9398 fn fetch_runnable_ranges(
9399 snapshot: &DisplaySnapshot,
9400 range: Range<Anchor>,
9401 ) -> Vec<language::RunnableRange> {
9402 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9403 }
9404
9405 fn runnable_rows(
9406 project: Model<Project>,
9407 snapshot: DisplaySnapshot,
9408 runnable_ranges: Vec<RunnableRange>,
9409 mut cx: AsyncWindowContext,
9410 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9411 runnable_ranges
9412 .into_iter()
9413 .filter_map(|mut runnable| {
9414 let tasks = cx
9415 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9416 .ok()?;
9417 if tasks.is_empty() {
9418 return None;
9419 }
9420
9421 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9422
9423 let row = snapshot
9424 .buffer_snapshot
9425 .buffer_line_for_row(MultiBufferRow(point.row))?
9426 .1
9427 .start
9428 .row;
9429
9430 let context_range =
9431 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9432 Some((
9433 (runnable.buffer_id, row),
9434 RunnableTasks {
9435 templates: tasks,
9436 offset: MultiBufferOffset(runnable.run_range.start),
9437 context_range,
9438 column: point.column,
9439 extra_variables: runnable.extra_captures,
9440 },
9441 ))
9442 })
9443 .collect()
9444 }
9445
9446 fn templates_with_tags(
9447 project: &Model<Project>,
9448 runnable: &mut Runnable,
9449 cx: &WindowContext<'_>,
9450 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9451 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9452 let (worktree_id, file) = project
9453 .buffer_for_id(runnable.buffer, cx)
9454 .and_then(|buffer| buffer.read(cx).file())
9455 .map(|file| (file.worktree_id(cx), file.clone()))
9456 .unzip();
9457
9458 (
9459 project.task_store().read(cx).task_inventory().cloned(),
9460 worktree_id,
9461 file,
9462 )
9463 });
9464
9465 let tags = mem::take(&mut runnable.tags);
9466 let mut tags: Vec<_> = tags
9467 .into_iter()
9468 .flat_map(|tag| {
9469 let tag = tag.0.clone();
9470 inventory
9471 .as_ref()
9472 .into_iter()
9473 .flat_map(|inventory| {
9474 inventory.read(cx).list_tasks(
9475 file.clone(),
9476 Some(runnable.language.clone()),
9477 worktree_id,
9478 cx,
9479 )
9480 })
9481 .filter(move |(_, template)| {
9482 template.tags.iter().any(|source_tag| source_tag == &tag)
9483 })
9484 })
9485 .sorted_by_key(|(kind, _)| kind.to_owned())
9486 .collect();
9487 if let Some((leading_tag_source, _)) = tags.first() {
9488 // Strongest source wins; if we have worktree tag binding, prefer that to
9489 // global and language bindings;
9490 // if we have a global binding, prefer that to language binding.
9491 let first_mismatch = tags
9492 .iter()
9493 .position(|(tag_source, _)| tag_source != leading_tag_source);
9494 if let Some(index) = first_mismatch {
9495 tags.truncate(index);
9496 }
9497 }
9498
9499 tags
9500 }
9501
9502 pub fn move_to_enclosing_bracket(
9503 &mut self,
9504 _: &MoveToEnclosingBracket,
9505 cx: &mut ViewContext<Self>,
9506 ) {
9507 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9508 s.move_offsets_with(|snapshot, selection| {
9509 let Some(enclosing_bracket_ranges) =
9510 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9511 else {
9512 return;
9513 };
9514
9515 let mut best_length = usize::MAX;
9516 let mut best_inside = false;
9517 let mut best_in_bracket_range = false;
9518 let mut best_destination = None;
9519 for (open, close) in enclosing_bracket_ranges {
9520 let close = close.to_inclusive();
9521 let length = close.end() - open.start;
9522 let inside = selection.start >= open.end && selection.end <= *close.start();
9523 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9524 || close.contains(&selection.head());
9525
9526 // If best is next to a bracket and current isn't, skip
9527 if !in_bracket_range && best_in_bracket_range {
9528 continue;
9529 }
9530
9531 // Prefer smaller lengths unless best is inside and current isn't
9532 if length > best_length && (best_inside || !inside) {
9533 continue;
9534 }
9535
9536 best_length = length;
9537 best_inside = inside;
9538 best_in_bracket_range = in_bracket_range;
9539 best_destination = Some(
9540 if close.contains(&selection.start) && close.contains(&selection.end) {
9541 if inside {
9542 open.end
9543 } else {
9544 open.start
9545 }
9546 } else if inside {
9547 *close.start()
9548 } else {
9549 *close.end()
9550 },
9551 );
9552 }
9553
9554 if let Some(destination) = best_destination {
9555 selection.collapse_to(destination, SelectionGoal::None);
9556 }
9557 })
9558 });
9559 }
9560
9561 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9562 self.end_selection(cx);
9563 self.selection_history.mode = SelectionHistoryMode::Undoing;
9564 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9565 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9566 self.select_next_state = entry.select_next_state;
9567 self.select_prev_state = entry.select_prev_state;
9568 self.add_selections_state = entry.add_selections_state;
9569 self.request_autoscroll(Autoscroll::newest(), cx);
9570 }
9571 self.selection_history.mode = SelectionHistoryMode::Normal;
9572 }
9573
9574 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9575 self.end_selection(cx);
9576 self.selection_history.mode = SelectionHistoryMode::Redoing;
9577 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9578 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9579 self.select_next_state = entry.select_next_state;
9580 self.select_prev_state = entry.select_prev_state;
9581 self.add_selections_state = entry.add_selections_state;
9582 self.request_autoscroll(Autoscroll::newest(), cx);
9583 }
9584 self.selection_history.mode = SelectionHistoryMode::Normal;
9585 }
9586
9587 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9588 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9589 }
9590
9591 pub fn expand_excerpts_down(
9592 &mut self,
9593 action: &ExpandExcerptsDown,
9594 cx: &mut ViewContext<Self>,
9595 ) {
9596 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9597 }
9598
9599 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9600 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9601 }
9602
9603 pub fn expand_excerpts_for_direction(
9604 &mut self,
9605 lines: u32,
9606 direction: ExpandExcerptDirection,
9607 cx: &mut ViewContext<Self>,
9608 ) {
9609 let selections = self.selections.disjoint_anchors();
9610
9611 let lines = if lines == 0 {
9612 EditorSettings::get_global(cx).expand_excerpt_lines
9613 } else {
9614 lines
9615 };
9616
9617 self.buffer.update(cx, |buffer, cx| {
9618 buffer.expand_excerpts(
9619 selections
9620 .iter()
9621 .map(|selection| selection.head().excerpt_id)
9622 .dedup(),
9623 lines,
9624 direction,
9625 cx,
9626 )
9627 })
9628 }
9629
9630 pub fn expand_excerpt(
9631 &mut self,
9632 excerpt: ExcerptId,
9633 direction: ExpandExcerptDirection,
9634 cx: &mut ViewContext<Self>,
9635 ) {
9636 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9637 self.buffer.update(cx, |buffer, cx| {
9638 buffer.expand_excerpts([excerpt], lines, direction, cx)
9639 })
9640 }
9641
9642 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9643 self.go_to_diagnostic_impl(Direction::Next, cx)
9644 }
9645
9646 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9647 self.go_to_diagnostic_impl(Direction::Prev, cx)
9648 }
9649
9650 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9651 let buffer = self.buffer.read(cx).snapshot(cx);
9652 let selection = self.selections.newest::<usize>(cx);
9653
9654 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9655 if direction == Direction::Next {
9656 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9657 let (group_id, jump_to) = popover.activation_info();
9658 if self.activate_diagnostics(group_id, cx) {
9659 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9660 let mut new_selection = s.newest_anchor().clone();
9661 new_selection.collapse_to(jump_to, SelectionGoal::None);
9662 s.select_anchors(vec![new_selection.clone()]);
9663 });
9664 }
9665 return;
9666 }
9667 }
9668
9669 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9670 active_diagnostics
9671 .primary_range
9672 .to_offset(&buffer)
9673 .to_inclusive()
9674 });
9675 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9676 if active_primary_range.contains(&selection.head()) {
9677 *active_primary_range.start()
9678 } else {
9679 selection.head()
9680 }
9681 } else {
9682 selection.head()
9683 };
9684 let snapshot = self.snapshot(cx);
9685 loop {
9686 let diagnostics = if direction == Direction::Prev {
9687 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9688 } else {
9689 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9690 }
9691 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9692 let group = diagnostics
9693 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9694 // be sorted in a stable way
9695 // skip until we are at current active diagnostic, if it exists
9696 .skip_while(|entry| {
9697 (match direction {
9698 Direction::Prev => entry.range.start >= search_start,
9699 Direction::Next => entry.range.start <= search_start,
9700 }) && self
9701 .active_diagnostics
9702 .as_ref()
9703 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9704 })
9705 .find_map(|entry| {
9706 if entry.diagnostic.is_primary
9707 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9708 && !entry.range.is_empty()
9709 // if we match with the active diagnostic, skip it
9710 && Some(entry.diagnostic.group_id)
9711 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9712 {
9713 Some((entry.range, entry.diagnostic.group_id))
9714 } else {
9715 None
9716 }
9717 });
9718
9719 if let Some((primary_range, group_id)) = group {
9720 if self.activate_diagnostics(group_id, cx) {
9721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9722 s.select(vec![Selection {
9723 id: selection.id,
9724 start: primary_range.start,
9725 end: primary_range.start,
9726 reversed: false,
9727 goal: SelectionGoal::None,
9728 }]);
9729 });
9730 }
9731 break;
9732 } else {
9733 // Cycle around to the start of the buffer, potentially moving back to the start of
9734 // the currently active diagnostic.
9735 active_primary_range.take();
9736 if direction == Direction::Prev {
9737 if search_start == buffer.len() {
9738 break;
9739 } else {
9740 search_start = buffer.len();
9741 }
9742 } else if search_start == 0 {
9743 break;
9744 } else {
9745 search_start = 0;
9746 }
9747 }
9748 }
9749 }
9750
9751 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9752 let snapshot = self
9753 .display_map
9754 .update(cx, |display_map, cx| display_map.snapshot(cx));
9755 let selection = self.selections.newest::<Point>(cx);
9756 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9757 }
9758
9759 fn go_to_hunk_after_position(
9760 &mut self,
9761 snapshot: &DisplaySnapshot,
9762 position: Point,
9763 cx: &mut ViewContext<'_, Editor>,
9764 ) -> Option<MultiBufferDiffHunk> {
9765 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9766 snapshot,
9767 position,
9768 false,
9769 snapshot
9770 .buffer_snapshot
9771 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9772 cx,
9773 ) {
9774 return Some(hunk);
9775 }
9776
9777 let wrapped_point = Point::zero();
9778 self.go_to_next_hunk_in_direction(
9779 snapshot,
9780 wrapped_point,
9781 true,
9782 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9783 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9784 ),
9785 cx,
9786 )
9787 }
9788
9789 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9790 let snapshot = self
9791 .display_map
9792 .update(cx, |display_map, cx| display_map.snapshot(cx));
9793 let selection = self.selections.newest::<Point>(cx);
9794
9795 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9796 }
9797
9798 fn go_to_hunk_before_position(
9799 &mut self,
9800 snapshot: &DisplaySnapshot,
9801 position: Point,
9802 cx: &mut ViewContext<'_, Editor>,
9803 ) -> Option<MultiBufferDiffHunk> {
9804 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9805 snapshot,
9806 position,
9807 false,
9808 snapshot
9809 .buffer_snapshot
9810 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9811 cx,
9812 ) {
9813 return Some(hunk);
9814 }
9815
9816 let wrapped_point = snapshot.buffer_snapshot.max_point();
9817 self.go_to_next_hunk_in_direction(
9818 snapshot,
9819 wrapped_point,
9820 true,
9821 snapshot
9822 .buffer_snapshot
9823 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9824 cx,
9825 )
9826 }
9827
9828 fn go_to_next_hunk_in_direction(
9829 &mut self,
9830 snapshot: &DisplaySnapshot,
9831 initial_point: Point,
9832 is_wrapped: bool,
9833 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9834 cx: &mut ViewContext<Editor>,
9835 ) -> Option<MultiBufferDiffHunk> {
9836 let display_point = initial_point.to_display_point(snapshot);
9837 let mut hunks = hunks
9838 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9839 .filter(|(display_hunk, _)| {
9840 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9841 })
9842 .dedup();
9843
9844 if let Some((display_hunk, hunk)) = hunks.next() {
9845 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9846 let row = display_hunk.start_display_row();
9847 let point = DisplayPoint::new(row, 0);
9848 s.select_display_ranges([point..point]);
9849 });
9850
9851 Some(hunk)
9852 } else {
9853 None
9854 }
9855 }
9856
9857 pub fn go_to_definition(
9858 &mut self,
9859 _: &GoToDefinition,
9860 cx: &mut ViewContext<Self>,
9861 ) -> Task<Result<Navigated>> {
9862 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9863 cx.spawn(|editor, mut cx| async move {
9864 if definition.await? == Navigated::Yes {
9865 return Ok(Navigated::Yes);
9866 }
9867 match editor.update(&mut cx, |editor, cx| {
9868 editor.find_all_references(&FindAllReferences, cx)
9869 })? {
9870 Some(references) => references.await,
9871 None => Ok(Navigated::No),
9872 }
9873 })
9874 }
9875
9876 pub fn go_to_declaration(
9877 &mut self,
9878 _: &GoToDeclaration,
9879 cx: &mut ViewContext<Self>,
9880 ) -> Task<Result<Navigated>> {
9881 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9882 }
9883
9884 pub fn go_to_declaration_split(
9885 &mut self,
9886 _: &GoToDeclaration,
9887 cx: &mut ViewContext<Self>,
9888 ) -> Task<Result<Navigated>> {
9889 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9890 }
9891
9892 pub fn go_to_implementation(
9893 &mut self,
9894 _: &GoToImplementation,
9895 cx: &mut ViewContext<Self>,
9896 ) -> Task<Result<Navigated>> {
9897 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9898 }
9899
9900 pub fn go_to_implementation_split(
9901 &mut self,
9902 _: &GoToImplementationSplit,
9903 cx: &mut ViewContext<Self>,
9904 ) -> Task<Result<Navigated>> {
9905 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9906 }
9907
9908 pub fn go_to_type_definition(
9909 &mut self,
9910 _: &GoToTypeDefinition,
9911 cx: &mut ViewContext<Self>,
9912 ) -> Task<Result<Navigated>> {
9913 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9914 }
9915
9916 pub fn go_to_definition_split(
9917 &mut self,
9918 _: &GoToDefinitionSplit,
9919 cx: &mut ViewContext<Self>,
9920 ) -> Task<Result<Navigated>> {
9921 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9922 }
9923
9924 pub fn go_to_type_definition_split(
9925 &mut self,
9926 _: &GoToTypeDefinitionSplit,
9927 cx: &mut ViewContext<Self>,
9928 ) -> Task<Result<Navigated>> {
9929 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9930 }
9931
9932 fn go_to_definition_of_kind(
9933 &mut self,
9934 kind: GotoDefinitionKind,
9935 split: bool,
9936 cx: &mut ViewContext<Self>,
9937 ) -> Task<Result<Navigated>> {
9938 let Some(provider) = self.semantics_provider.clone() else {
9939 return Task::ready(Ok(Navigated::No));
9940 };
9941 let head = self.selections.newest::<usize>(cx).head();
9942 let buffer = self.buffer.read(cx);
9943 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9944 text_anchor
9945 } else {
9946 return Task::ready(Ok(Navigated::No));
9947 };
9948
9949 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9950 return Task::ready(Ok(Navigated::No));
9951 };
9952
9953 cx.spawn(|editor, mut cx| async move {
9954 let definitions = definitions.await?;
9955 let navigated = editor
9956 .update(&mut cx, |editor, cx| {
9957 editor.navigate_to_hover_links(
9958 Some(kind),
9959 definitions
9960 .into_iter()
9961 .filter(|location| {
9962 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9963 })
9964 .map(HoverLink::Text)
9965 .collect::<Vec<_>>(),
9966 split,
9967 cx,
9968 )
9969 })?
9970 .await?;
9971 anyhow::Ok(navigated)
9972 })
9973 }
9974
9975 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9976 let position = self.selections.newest_anchor().head();
9977 let Some((buffer, buffer_position)) =
9978 self.buffer.read(cx).text_anchor_for_position(position, cx)
9979 else {
9980 return;
9981 };
9982
9983 cx.spawn(|editor, mut cx| async move {
9984 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9985 editor.update(&mut cx, |_, cx| {
9986 cx.open_url(&url);
9987 })
9988 } else {
9989 Ok(())
9990 }
9991 })
9992 .detach();
9993 }
9994
9995 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9996 let Some(workspace) = self.workspace() else {
9997 return;
9998 };
9999
10000 let position = self.selections.newest_anchor().head();
10001
10002 let Some((buffer, buffer_position)) =
10003 self.buffer.read(cx).text_anchor_for_position(position, cx)
10004 else {
10005 return;
10006 };
10007
10008 let project = self.project.clone();
10009
10010 cx.spawn(|_, mut cx| async move {
10011 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10012
10013 if let Some((_, path)) = result {
10014 workspace
10015 .update(&mut cx, |workspace, cx| {
10016 workspace.open_resolved_path(path, cx)
10017 })?
10018 .await?;
10019 }
10020 anyhow::Ok(())
10021 })
10022 .detach();
10023 }
10024
10025 pub(crate) fn navigate_to_hover_links(
10026 &mut self,
10027 kind: Option<GotoDefinitionKind>,
10028 mut definitions: Vec<HoverLink>,
10029 split: bool,
10030 cx: &mut ViewContext<Editor>,
10031 ) -> Task<Result<Navigated>> {
10032 // If there is one definition, just open it directly
10033 if definitions.len() == 1 {
10034 let definition = definitions.pop().unwrap();
10035
10036 enum TargetTaskResult {
10037 Location(Option<Location>),
10038 AlreadyNavigated,
10039 }
10040
10041 let target_task = match definition {
10042 HoverLink::Text(link) => {
10043 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10044 }
10045 HoverLink::InlayHint(lsp_location, server_id) => {
10046 let computation = self.compute_target_location(lsp_location, server_id, cx);
10047 cx.background_executor().spawn(async move {
10048 let location = computation.await?;
10049 Ok(TargetTaskResult::Location(location))
10050 })
10051 }
10052 HoverLink::Url(url) => {
10053 cx.open_url(&url);
10054 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10055 }
10056 HoverLink::File(path) => {
10057 if let Some(workspace) = self.workspace() {
10058 cx.spawn(|_, mut cx| async move {
10059 workspace
10060 .update(&mut cx, |workspace, cx| {
10061 workspace.open_resolved_path(path, cx)
10062 })?
10063 .await
10064 .map(|_| TargetTaskResult::AlreadyNavigated)
10065 })
10066 } else {
10067 Task::ready(Ok(TargetTaskResult::Location(None)))
10068 }
10069 }
10070 };
10071 cx.spawn(|editor, mut cx| async move {
10072 let target = match target_task.await.context("target resolution task")? {
10073 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10074 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10075 TargetTaskResult::Location(Some(target)) => target,
10076 };
10077
10078 editor.update(&mut cx, |editor, cx| {
10079 let Some(workspace) = editor.workspace() else {
10080 return Navigated::No;
10081 };
10082 let pane = workspace.read(cx).active_pane().clone();
10083
10084 let range = target.range.to_offset(target.buffer.read(cx));
10085 let range = editor.range_for_match(&range);
10086
10087 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10088 let buffer = target.buffer.read(cx);
10089 let range = check_multiline_range(buffer, range);
10090 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10091 s.select_ranges([range]);
10092 });
10093 } else {
10094 cx.window_context().defer(move |cx| {
10095 let target_editor: View<Self> =
10096 workspace.update(cx, |workspace, cx| {
10097 let pane = if split {
10098 workspace.adjacent_pane(cx)
10099 } else {
10100 workspace.active_pane().clone()
10101 };
10102
10103 workspace.open_project_item(
10104 pane,
10105 target.buffer.clone(),
10106 true,
10107 true,
10108 cx,
10109 )
10110 });
10111 target_editor.update(cx, |target_editor, cx| {
10112 // When selecting a definition in a different buffer, disable the nav history
10113 // to avoid creating a history entry at the previous cursor location.
10114 pane.update(cx, |pane, _| pane.disable_history());
10115 let buffer = target.buffer.read(cx);
10116 let range = check_multiline_range(buffer, range);
10117 target_editor.change_selections(
10118 Some(Autoscroll::focused()),
10119 cx,
10120 |s| {
10121 s.select_ranges([range]);
10122 },
10123 );
10124 pane.update(cx, |pane, _| pane.enable_history());
10125 });
10126 });
10127 }
10128 Navigated::Yes
10129 })
10130 })
10131 } else if !definitions.is_empty() {
10132 cx.spawn(|editor, mut cx| async move {
10133 let (title, location_tasks, workspace) = editor
10134 .update(&mut cx, |editor, cx| {
10135 let tab_kind = match kind {
10136 Some(GotoDefinitionKind::Implementation) => "Implementations",
10137 _ => "Definitions",
10138 };
10139 let title = definitions
10140 .iter()
10141 .find_map(|definition| match definition {
10142 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10143 let buffer = origin.buffer.read(cx);
10144 format!(
10145 "{} for {}",
10146 tab_kind,
10147 buffer
10148 .text_for_range(origin.range.clone())
10149 .collect::<String>()
10150 )
10151 }),
10152 HoverLink::InlayHint(_, _) => None,
10153 HoverLink::Url(_) => None,
10154 HoverLink::File(_) => None,
10155 })
10156 .unwrap_or(tab_kind.to_string());
10157 let location_tasks = definitions
10158 .into_iter()
10159 .map(|definition| match definition {
10160 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10161 HoverLink::InlayHint(lsp_location, server_id) => {
10162 editor.compute_target_location(lsp_location, server_id, cx)
10163 }
10164 HoverLink::Url(_) => Task::ready(Ok(None)),
10165 HoverLink::File(_) => Task::ready(Ok(None)),
10166 })
10167 .collect::<Vec<_>>();
10168 (title, location_tasks, editor.workspace().clone())
10169 })
10170 .context("location tasks preparation")?;
10171
10172 let locations = future::join_all(location_tasks)
10173 .await
10174 .into_iter()
10175 .filter_map(|location| location.transpose())
10176 .collect::<Result<_>>()
10177 .context("location tasks")?;
10178
10179 let Some(workspace) = workspace else {
10180 return Ok(Navigated::No);
10181 };
10182 let opened = workspace
10183 .update(&mut cx, |workspace, cx| {
10184 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10185 })
10186 .ok();
10187
10188 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10189 })
10190 } else {
10191 Task::ready(Ok(Navigated::No))
10192 }
10193 }
10194
10195 fn compute_target_location(
10196 &self,
10197 lsp_location: lsp::Location,
10198 server_id: LanguageServerId,
10199 cx: &mut ViewContext<Self>,
10200 ) -> Task<anyhow::Result<Option<Location>>> {
10201 let Some(project) = self.project.clone() else {
10202 return Task::Ready(Some(Ok(None)));
10203 };
10204
10205 cx.spawn(move |editor, mut cx| async move {
10206 let location_task = editor.update(&mut cx, |_, cx| {
10207 project.update(cx, |project, cx| {
10208 let language_server_name = project
10209 .language_server_statuses(cx)
10210 .find(|(id, _)| server_id == *id)
10211 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10212 language_server_name.map(|language_server_name| {
10213 project.open_local_buffer_via_lsp(
10214 lsp_location.uri.clone(),
10215 server_id,
10216 language_server_name,
10217 cx,
10218 )
10219 })
10220 })
10221 })?;
10222 let location = match location_task {
10223 Some(task) => Some({
10224 let target_buffer_handle = task.await.context("open local buffer")?;
10225 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10226 let target_start = target_buffer
10227 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10228 let target_end = target_buffer
10229 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10230 target_buffer.anchor_after(target_start)
10231 ..target_buffer.anchor_before(target_end)
10232 })?;
10233 Location {
10234 buffer: target_buffer_handle,
10235 range,
10236 }
10237 }),
10238 None => None,
10239 };
10240 Ok(location)
10241 })
10242 }
10243
10244 pub fn find_all_references(
10245 &mut self,
10246 _: &FindAllReferences,
10247 cx: &mut ViewContext<Self>,
10248 ) -> Option<Task<Result<Navigated>>> {
10249 let selection = self.selections.newest::<usize>(cx);
10250 let multi_buffer = self.buffer.read(cx);
10251 let head = selection.head();
10252
10253 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10254 let head_anchor = multi_buffer_snapshot.anchor_at(
10255 head,
10256 if head < selection.tail() {
10257 Bias::Right
10258 } else {
10259 Bias::Left
10260 },
10261 );
10262
10263 match self
10264 .find_all_references_task_sources
10265 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10266 {
10267 Ok(_) => {
10268 log::info!(
10269 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10270 );
10271 return None;
10272 }
10273 Err(i) => {
10274 self.find_all_references_task_sources.insert(i, head_anchor);
10275 }
10276 }
10277
10278 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10279 let workspace = self.workspace()?;
10280 let project = workspace.read(cx).project().clone();
10281 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10282 Some(cx.spawn(|editor, mut cx| async move {
10283 let _cleanup = defer({
10284 let mut cx = cx.clone();
10285 move || {
10286 let _ = editor.update(&mut cx, |editor, _| {
10287 if let Ok(i) =
10288 editor
10289 .find_all_references_task_sources
10290 .binary_search_by(|anchor| {
10291 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10292 })
10293 {
10294 editor.find_all_references_task_sources.remove(i);
10295 }
10296 });
10297 }
10298 });
10299
10300 let locations = references.await?;
10301 if locations.is_empty() {
10302 return anyhow::Ok(Navigated::No);
10303 }
10304
10305 workspace.update(&mut cx, |workspace, cx| {
10306 let title = locations
10307 .first()
10308 .as_ref()
10309 .map(|location| {
10310 let buffer = location.buffer.read(cx);
10311 format!(
10312 "References to `{}`",
10313 buffer
10314 .text_for_range(location.range.clone())
10315 .collect::<String>()
10316 )
10317 })
10318 .unwrap();
10319 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10320 Navigated::Yes
10321 })
10322 }))
10323 }
10324
10325 /// Opens a multibuffer with the given project locations in it
10326 pub fn open_locations_in_multibuffer(
10327 workspace: &mut Workspace,
10328 mut locations: Vec<Location>,
10329 title: String,
10330 split: bool,
10331 cx: &mut ViewContext<Workspace>,
10332 ) {
10333 // If there are multiple definitions, open them in a multibuffer
10334 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10335 let mut locations = locations.into_iter().peekable();
10336 let mut ranges_to_highlight = Vec::new();
10337 let capability = workspace.project().read(cx).capability();
10338
10339 let excerpt_buffer = cx.new_model(|cx| {
10340 let mut multibuffer = MultiBuffer::new(capability);
10341 while let Some(location) = locations.next() {
10342 let buffer = location.buffer.read(cx);
10343 let mut ranges_for_buffer = Vec::new();
10344 let range = location.range.to_offset(buffer);
10345 ranges_for_buffer.push(range.clone());
10346
10347 while let Some(next_location) = locations.peek() {
10348 if next_location.buffer == location.buffer {
10349 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10350 locations.next();
10351 } else {
10352 break;
10353 }
10354 }
10355
10356 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10357 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10358 location.buffer.clone(),
10359 ranges_for_buffer,
10360 DEFAULT_MULTIBUFFER_CONTEXT,
10361 cx,
10362 ))
10363 }
10364
10365 multibuffer.with_title(title)
10366 });
10367
10368 let editor = cx.new_view(|cx| {
10369 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10370 });
10371 editor.update(cx, |editor, cx| {
10372 if let Some(first_range) = ranges_to_highlight.first() {
10373 editor.change_selections(None, cx, |selections| {
10374 selections.clear_disjoint();
10375 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10376 });
10377 }
10378 editor.highlight_background::<Self>(
10379 &ranges_to_highlight,
10380 |theme| theme.editor_highlighted_line_background,
10381 cx,
10382 );
10383 });
10384
10385 let item = Box::new(editor);
10386 let item_id = item.item_id();
10387
10388 if split {
10389 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10390 } else {
10391 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10392 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10393 pane.close_current_preview_item(cx)
10394 } else {
10395 None
10396 }
10397 });
10398 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10399 }
10400 workspace.active_pane().update(cx, |pane, cx| {
10401 pane.set_preview_item_id(Some(item_id), cx);
10402 });
10403 }
10404
10405 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10406 use language::ToOffset as _;
10407
10408 let provider = self.semantics_provider.clone()?;
10409 let selection = self.selections.newest_anchor().clone();
10410 let (cursor_buffer, cursor_buffer_position) = self
10411 .buffer
10412 .read(cx)
10413 .text_anchor_for_position(selection.head(), cx)?;
10414 let (tail_buffer, cursor_buffer_position_end) = self
10415 .buffer
10416 .read(cx)
10417 .text_anchor_for_position(selection.tail(), cx)?;
10418 if tail_buffer != cursor_buffer {
10419 return None;
10420 }
10421
10422 let snapshot = cursor_buffer.read(cx).snapshot();
10423 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10424 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10425 let prepare_rename = provider
10426 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10427 .unwrap_or_else(|| Task::ready(Ok(None)));
10428 drop(snapshot);
10429
10430 Some(cx.spawn(|this, mut cx| async move {
10431 let rename_range = if let Some(range) = prepare_rename.await? {
10432 Some(range)
10433 } else {
10434 this.update(&mut cx, |this, cx| {
10435 let buffer = this.buffer.read(cx).snapshot(cx);
10436 let mut buffer_highlights = this
10437 .document_highlights_for_position(selection.head(), &buffer)
10438 .filter(|highlight| {
10439 highlight.start.excerpt_id == selection.head().excerpt_id
10440 && highlight.end.excerpt_id == selection.head().excerpt_id
10441 });
10442 buffer_highlights
10443 .next()
10444 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10445 })?
10446 };
10447 if let Some(rename_range) = rename_range {
10448 this.update(&mut cx, |this, cx| {
10449 let snapshot = cursor_buffer.read(cx).snapshot();
10450 let rename_buffer_range = rename_range.to_offset(&snapshot);
10451 let cursor_offset_in_rename_range =
10452 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10453 let cursor_offset_in_rename_range_end =
10454 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10455
10456 this.take_rename(false, cx);
10457 let buffer = this.buffer.read(cx).read(cx);
10458 let cursor_offset = selection.head().to_offset(&buffer);
10459 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10460 let rename_end = rename_start + rename_buffer_range.len();
10461 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10462 let mut old_highlight_id = None;
10463 let old_name: Arc<str> = buffer
10464 .chunks(rename_start..rename_end, true)
10465 .map(|chunk| {
10466 if old_highlight_id.is_none() {
10467 old_highlight_id = chunk.syntax_highlight_id;
10468 }
10469 chunk.text
10470 })
10471 .collect::<String>()
10472 .into();
10473
10474 drop(buffer);
10475
10476 // Position the selection in the rename editor so that it matches the current selection.
10477 this.show_local_selections = false;
10478 let rename_editor = cx.new_view(|cx| {
10479 let mut editor = Editor::single_line(cx);
10480 editor.buffer.update(cx, |buffer, cx| {
10481 buffer.edit([(0..0, old_name.clone())], None, cx)
10482 });
10483 let rename_selection_range = match cursor_offset_in_rename_range
10484 .cmp(&cursor_offset_in_rename_range_end)
10485 {
10486 Ordering::Equal => {
10487 editor.select_all(&SelectAll, cx);
10488 return editor;
10489 }
10490 Ordering::Less => {
10491 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10492 }
10493 Ordering::Greater => {
10494 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10495 }
10496 };
10497 if rename_selection_range.end > old_name.len() {
10498 editor.select_all(&SelectAll, cx);
10499 } else {
10500 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10501 s.select_ranges([rename_selection_range]);
10502 });
10503 }
10504 editor
10505 });
10506 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10507 if e == &EditorEvent::Focused {
10508 cx.emit(EditorEvent::FocusedIn)
10509 }
10510 })
10511 .detach();
10512
10513 let write_highlights =
10514 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10515 let read_highlights =
10516 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10517 let ranges = write_highlights
10518 .iter()
10519 .flat_map(|(_, ranges)| ranges.iter())
10520 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10521 .cloned()
10522 .collect();
10523
10524 this.highlight_text::<Rename>(
10525 ranges,
10526 HighlightStyle {
10527 fade_out: Some(0.6),
10528 ..Default::default()
10529 },
10530 cx,
10531 );
10532 let rename_focus_handle = rename_editor.focus_handle(cx);
10533 cx.focus(&rename_focus_handle);
10534 let block_id = this.insert_blocks(
10535 [BlockProperties {
10536 style: BlockStyle::Flex,
10537 placement: BlockPlacement::Below(range.start),
10538 height: 1,
10539 render: Arc::new({
10540 let rename_editor = rename_editor.clone();
10541 move |cx: &mut BlockContext| {
10542 let mut text_style = cx.editor_style.text.clone();
10543 if let Some(highlight_style) = old_highlight_id
10544 .and_then(|h| h.style(&cx.editor_style.syntax))
10545 {
10546 text_style = text_style.highlight(highlight_style);
10547 }
10548 div()
10549 .block_mouse_down()
10550 .pl(cx.anchor_x)
10551 .child(EditorElement::new(
10552 &rename_editor,
10553 EditorStyle {
10554 background: cx.theme().system().transparent,
10555 local_player: cx.editor_style.local_player,
10556 text: text_style,
10557 scrollbar_width: cx.editor_style.scrollbar_width,
10558 syntax: cx.editor_style.syntax.clone(),
10559 status: cx.editor_style.status.clone(),
10560 inlay_hints_style: HighlightStyle {
10561 font_weight: Some(FontWeight::BOLD),
10562 ..make_inlay_hints_style(cx)
10563 },
10564 suggestions_style: HighlightStyle {
10565 color: Some(cx.theme().status().predictive),
10566 ..HighlightStyle::default()
10567 },
10568 ..EditorStyle::default()
10569 },
10570 ))
10571 .into_any_element()
10572 }
10573 }),
10574 priority: 0,
10575 }],
10576 Some(Autoscroll::fit()),
10577 cx,
10578 )[0];
10579 this.pending_rename = Some(RenameState {
10580 range,
10581 old_name,
10582 editor: rename_editor,
10583 block_id,
10584 });
10585 })?;
10586 }
10587
10588 Ok(())
10589 }))
10590 }
10591
10592 pub fn confirm_rename(
10593 &mut self,
10594 _: &ConfirmRename,
10595 cx: &mut ViewContext<Self>,
10596 ) -> Option<Task<Result<()>>> {
10597 let rename = self.take_rename(false, cx)?;
10598 let workspace = self.workspace()?.downgrade();
10599 let (buffer, start) = self
10600 .buffer
10601 .read(cx)
10602 .text_anchor_for_position(rename.range.start, cx)?;
10603 let (end_buffer, _) = self
10604 .buffer
10605 .read(cx)
10606 .text_anchor_for_position(rename.range.end, cx)?;
10607 if buffer != end_buffer {
10608 return None;
10609 }
10610
10611 let old_name = rename.old_name;
10612 let new_name = rename.editor.read(cx).text(cx);
10613
10614 let rename = self.semantics_provider.as_ref()?.perform_rename(
10615 &buffer,
10616 start,
10617 new_name.clone(),
10618 cx,
10619 )?;
10620
10621 Some(cx.spawn(|editor, mut cx| async move {
10622 let project_transaction = rename.await?;
10623 Self::open_project_transaction(
10624 &editor,
10625 workspace,
10626 project_transaction,
10627 format!("Rename: {} → {}", old_name, new_name),
10628 cx.clone(),
10629 )
10630 .await?;
10631
10632 editor.update(&mut cx, |editor, cx| {
10633 editor.refresh_document_highlights(cx);
10634 })?;
10635 Ok(())
10636 }))
10637 }
10638
10639 fn take_rename(
10640 &mut self,
10641 moving_cursor: bool,
10642 cx: &mut ViewContext<Self>,
10643 ) -> Option<RenameState> {
10644 let rename = self.pending_rename.take()?;
10645 if rename.editor.focus_handle(cx).is_focused(cx) {
10646 cx.focus(&self.focus_handle);
10647 }
10648
10649 self.remove_blocks(
10650 [rename.block_id].into_iter().collect(),
10651 Some(Autoscroll::fit()),
10652 cx,
10653 );
10654 self.clear_highlights::<Rename>(cx);
10655 self.show_local_selections = true;
10656
10657 if moving_cursor {
10658 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10659 editor.selections.newest::<usize>(cx).head()
10660 });
10661
10662 // Update the selection to match the position of the selection inside
10663 // the rename editor.
10664 let snapshot = self.buffer.read(cx).read(cx);
10665 let rename_range = rename.range.to_offset(&snapshot);
10666 let cursor_in_editor = snapshot
10667 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10668 .min(rename_range.end);
10669 drop(snapshot);
10670
10671 self.change_selections(None, cx, |s| {
10672 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10673 });
10674 } else {
10675 self.refresh_document_highlights(cx);
10676 }
10677
10678 Some(rename)
10679 }
10680
10681 pub fn pending_rename(&self) -> Option<&RenameState> {
10682 self.pending_rename.as_ref()
10683 }
10684
10685 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10686 let project = match &self.project {
10687 Some(project) => project.clone(),
10688 None => return None,
10689 };
10690
10691 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10692 }
10693
10694 fn format_selections(
10695 &mut self,
10696 _: &FormatSelections,
10697 cx: &mut ViewContext<Self>,
10698 ) -> Option<Task<Result<()>>> {
10699 let project = match &self.project {
10700 Some(project) => project.clone(),
10701 None => return None,
10702 };
10703
10704 let selections = self
10705 .selections
10706 .all_adjusted(cx)
10707 .into_iter()
10708 .filter(|s| !s.is_empty())
10709 .collect_vec();
10710
10711 Some(self.perform_format(
10712 project,
10713 FormatTrigger::Manual,
10714 FormatTarget::Ranges(selections),
10715 cx,
10716 ))
10717 }
10718
10719 fn perform_format(
10720 &mut self,
10721 project: Model<Project>,
10722 trigger: FormatTrigger,
10723 target: FormatTarget,
10724 cx: &mut ViewContext<Self>,
10725 ) -> Task<Result<()>> {
10726 let buffer = self.buffer().clone();
10727 let mut buffers = buffer.read(cx).all_buffers();
10728 if trigger == FormatTrigger::Save {
10729 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10730 }
10731
10732 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10733 let format = project.update(cx, |project, cx| {
10734 project.format(buffers, true, trigger, target, cx)
10735 });
10736
10737 cx.spawn(|_, mut cx| async move {
10738 let transaction = futures::select_biased! {
10739 () = timeout => {
10740 log::warn!("timed out waiting for formatting");
10741 None
10742 }
10743 transaction = format.log_err().fuse() => transaction,
10744 };
10745
10746 buffer
10747 .update(&mut cx, |buffer, cx| {
10748 if let Some(transaction) = transaction {
10749 if !buffer.is_singleton() {
10750 buffer.push_transaction(&transaction.0, cx);
10751 }
10752 }
10753
10754 cx.notify();
10755 })
10756 .ok();
10757
10758 Ok(())
10759 })
10760 }
10761
10762 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10763 if let Some(project) = self.project.clone() {
10764 self.buffer.update(cx, |multi_buffer, cx| {
10765 project.update(cx, |project, cx| {
10766 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10767 });
10768 })
10769 }
10770 }
10771
10772 fn cancel_language_server_work(
10773 &mut self,
10774 _: &actions::CancelLanguageServerWork,
10775 cx: &mut ViewContext<Self>,
10776 ) {
10777 if let Some(project) = self.project.clone() {
10778 self.buffer.update(cx, |multi_buffer, cx| {
10779 project.update(cx, |project, cx| {
10780 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10781 });
10782 })
10783 }
10784 }
10785
10786 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10787 cx.show_character_palette();
10788 }
10789
10790 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10791 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10792 let buffer = self.buffer.read(cx).snapshot(cx);
10793 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10794 let is_valid = buffer
10795 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10796 .any(|entry| {
10797 entry.diagnostic.is_primary
10798 && !entry.range.is_empty()
10799 && entry.range.start == primary_range_start
10800 && entry.diagnostic.message == active_diagnostics.primary_message
10801 });
10802
10803 if is_valid != active_diagnostics.is_valid {
10804 active_diagnostics.is_valid = is_valid;
10805 let mut new_styles = HashMap::default();
10806 for (block_id, diagnostic) in &active_diagnostics.blocks {
10807 new_styles.insert(
10808 *block_id,
10809 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10810 );
10811 }
10812 self.display_map.update(cx, |display_map, _cx| {
10813 display_map.replace_blocks(new_styles)
10814 });
10815 }
10816 }
10817 }
10818
10819 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10820 self.dismiss_diagnostics(cx);
10821 let snapshot = self.snapshot(cx);
10822 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10823 let buffer = self.buffer.read(cx).snapshot(cx);
10824
10825 let mut primary_range = None;
10826 let mut primary_message = None;
10827 let mut group_end = Point::zero();
10828 let diagnostic_group = buffer
10829 .diagnostic_group::<MultiBufferPoint>(group_id)
10830 .filter_map(|entry| {
10831 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10832 && (entry.range.start.row == entry.range.end.row
10833 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10834 {
10835 return None;
10836 }
10837 if entry.range.end > group_end {
10838 group_end = entry.range.end;
10839 }
10840 if entry.diagnostic.is_primary {
10841 primary_range = Some(entry.range.clone());
10842 primary_message = Some(entry.diagnostic.message.clone());
10843 }
10844 Some(entry)
10845 })
10846 .collect::<Vec<_>>();
10847 let primary_range = primary_range?;
10848 let primary_message = primary_message?;
10849 let primary_range =
10850 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10851
10852 let blocks = display_map
10853 .insert_blocks(
10854 diagnostic_group.iter().map(|entry| {
10855 let diagnostic = entry.diagnostic.clone();
10856 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10857 BlockProperties {
10858 style: BlockStyle::Fixed,
10859 placement: BlockPlacement::Below(
10860 buffer.anchor_after(entry.range.start),
10861 ),
10862 height: message_height,
10863 render: diagnostic_block_renderer(diagnostic, None, true, true),
10864 priority: 0,
10865 }
10866 }),
10867 cx,
10868 )
10869 .into_iter()
10870 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10871 .collect();
10872
10873 Some(ActiveDiagnosticGroup {
10874 primary_range,
10875 primary_message,
10876 group_id,
10877 blocks,
10878 is_valid: true,
10879 })
10880 });
10881 self.active_diagnostics.is_some()
10882 }
10883
10884 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10885 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10886 self.display_map.update(cx, |display_map, cx| {
10887 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10888 });
10889 cx.notify();
10890 }
10891 }
10892
10893 pub fn set_selections_from_remote(
10894 &mut self,
10895 selections: Vec<Selection<Anchor>>,
10896 pending_selection: Option<Selection<Anchor>>,
10897 cx: &mut ViewContext<Self>,
10898 ) {
10899 let old_cursor_position = self.selections.newest_anchor().head();
10900 self.selections.change_with(cx, |s| {
10901 s.select_anchors(selections);
10902 if let Some(pending_selection) = pending_selection {
10903 s.set_pending(pending_selection, SelectMode::Character);
10904 } else {
10905 s.clear_pending();
10906 }
10907 });
10908 self.selections_did_change(false, &old_cursor_position, true, cx);
10909 }
10910
10911 fn push_to_selection_history(&mut self) {
10912 self.selection_history.push(SelectionHistoryEntry {
10913 selections: self.selections.disjoint_anchors(),
10914 select_next_state: self.select_next_state.clone(),
10915 select_prev_state: self.select_prev_state.clone(),
10916 add_selections_state: self.add_selections_state.clone(),
10917 });
10918 }
10919
10920 pub fn transact(
10921 &mut self,
10922 cx: &mut ViewContext<Self>,
10923 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10924 ) -> Option<TransactionId> {
10925 self.start_transaction_at(Instant::now(), cx);
10926 update(self, cx);
10927 self.end_transaction_at(Instant::now(), cx)
10928 }
10929
10930 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10931 self.end_selection(cx);
10932 if let Some(tx_id) = self
10933 .buffer
10934 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10935 {
10936 self.selection_history
10937 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10938 cx.emit(EditorEvent::TransactionBegun {
10939 transaction_id: tx_id,
10940 })
10941 }
10942 }
10943
10944 fn end_transaction_at(
10945 &mut self,
10946 now: Instant,
10947 cx: &mut ViewContext<Self>,
10948 ) -> Option<TransactionId> {
10949 if let Some(transaction_id) = self
10950 .buffer
10951 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10952 {
10953 if let Some((_, end_selections)) =
10954 self.selection_history.transaction_mut(transaction_id)
10955 {
10956 *end_selections = Some(self.selections.disjoint_anchors());
10957 } else {
10958 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10959 }
10960
10961 cx.emit(EditorEvent::Edited { transaction_id });
10962 Some(transaction_id)
10963 } else {
10964 None
10965 }
10966 }
10967
10968 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10969 let selection = self.selections.newest::<Point>(cx);
10970
10971 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10972 let range = if selection.is_empty() {
10973 let point = selection.head().to_display_point(&display_map);
10974 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10975 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10976 .to_point(&display_map);
10977 start..end
10978 } else {
10979 selection.range()
10980 };
10981 if display_map.folds_in_range(range).next().is_some() {
10982 self.unfold_lines(&Default::default(), cx)
10983 } else {
10984 self.fold(&Default::default(), cx)
10985 }
10986 }
10987
10988 pub fn toggle_fold_recursive(
10989 &mut self,
10990 _: &actions::ToggleFoldRecursive,
10991 cx: &mut ViewContext<Self>,
10992 ) {
10993 let selection = self.selections.newest::<Point>(cx);
10994
10995 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10996 let range = if selection.is_empty() {
10997 let point = selection.head().to_display_point(&display_map);
10998 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10999 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11000 .to_point(&display_map);
11001 start..end
11002 } else {
11003 selection.range()
11004 };
11005 if display_map.folds_in_range(range).next().is_some() {
11006 self.unfold_recursive(&Default::default(), cx)
11007 } else {
11008 self.fold_recursive(&Default::default(), cx)
11009 }
11010 }
11011
11012 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11013 let mut to_fold = Vec::new();
11014 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11015 let selections = self.selections.all_adjusted(cx);
11016
11017 for selection in selections {
11018 let range = selection.range().sorted();
11019 let buffer_start_row = range.start.row;
11020
11021 if range.start.row != range.end.row {
11022 let mut found = false;
11023 let mut row = range.start.row;
11024 while row <= range.end.row {
11025 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11026 found = true;
11027 row = crease.range().end.row + 1;
11028 to_fold.push(crease);
11029 } else {
11030 row += 1
11031 }
11032 }
11033 if found {
11034 continue;
11035 }
11036 }
11037
11038 for row in (0..=range.start.row).rev() {
11039 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11040 if crease.range().end.row >= buffer_start_row {
11041 to_fold.push(crease);
11042 if row <= range.start.row {
11043 break;
11044 }
11045 }
11046 }
11047 }
11048 }
11049
11050 self.fold_creases(to_fold, true, cx);
11051 }
11052
11053 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11054 let fold_at_level = fold_at.level;
11055 let snapshot = self.buffer.read(cx).snapshot(cx);
11056 let mut to_fold = Vec::new();
11057 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
11058
11059 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11060 while start_row < end_row {
11061 match self
11062 .snapshot(cx)
11063 .crease_for_buffer_row(MultiBufferRow(start_row))
11064 {
11065 Some(crease) => {
11066 let nested_start_row = crease.range().start.row + 1;
11067 let nested_end_row = crease.range().end.row;
11068
11069 if current_level < fold_at_level {
11070 stack.push((nested_start_row, nested_end_row, current_level + 1));
11071 } else if current_level == fold_at_level {
11072 to_fold.push(crease);
11073 }
11074
11075 start_row = nested_end_row + 1;
11076 }
11077 None => start_row += 1,
11078 }
11079 }
11080 }
11081
11082 self.fold_creases(to_fold, true, cx);
11083 }
11084
11085 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11086 let mut fold_ranges = Vec::new();
11087 let snapshot = self.buffer.read(cx).snapshot(cx);
11088
11089 for row in 0..snapshot.max_buffer_row().0 {
11090 if let Some(foldable_range) =
11091 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11092 {
11093 fold_ranges.push(foldable_range);
11094 }
11095 }
11096
11097 self.fold_creases(fold_ranges, true, cx);
11098 }
11099
11100 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11101 let mut to_fold = Vec::new();
11102 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11103 let selections = self.selections.all_adjusted(cx);
11104
11105 for selection in selections {
11106 let range = selection.range().sorted();
11107 let buffer_start_row = range.start.row;
11108
11109 if range.start.row != range.end.row {
11110 let mut found = false;
11111 for row in range.start.row..=range.end.row {
11112 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11113 found = true;
11114 to_fold.push(crease);
11115 }
11116 }
11117 if found {
11118 continue;
11119 }
11120 }
11121
11122 for row in (0..=range.start.row).rev() {
11123 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11124 if crease.range().end.row >= buffer_start_row {
11125 to_fold.push(crease);
11126 } else {
11127 break;
11128 }
11129 }
11130 }
11131 }
11132
11133 self.fold_creases(to_fold, true, cx);
11134 }
11135
11136 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11137 let buffer_row = fold_at.buffer_row;
11138 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11139
11140 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11141 let autoscroll = self
11142 .selections
11143 .all::<Point>(cx)
11144 .iter()
11145 .any(|selection| crease.range().overlaps(&selection.range()));
11146
11147 self.fold_creases(vec![crease], autoscroll, cx);
11148 }
11149 }
11150
11151 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11153 let buffer = &display_map.buffer_snapshot;
11154 let selections = self.selections.all::<Point>(cx);
11155 let ranges = selections
11156 .iter()
11157 .map(|s| {
11158 let range = s.display_range(&display_map).sorted();
11159 let mut start = range.start.to_point(&display_map);
11160 let mut end = range.end.to_point(&display_map);
11161 start.column = 0;
11162 end.column = buffer.line_len(MultiBufferRow(end.row));
11163 start..end
11164 })
11165 .collect::<Vec<_>>();
11166
11167 self.unfold_ranges(&ranges, true, true, cx);
11168 }
11169
11170 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11172 let selections = self.selections.all::<Point>(cx);
11173 let ranges = selections
11174 .iter()
11175 .map(|s| {
11176 let mut range = s.display_range(&display_map).sorted();
11177 *range.start.column_mut() = 0;
11178 *range.end.column_mut() = display_map.line_len(range.end.row());
11179 let start = range.start.to_point(&display_map);
11180 let end = range.end.to_point(&display_map);
11181 start..end
11182 })
11183 .collect::<Vec<_>>();
11184
11185 self.unfold_ranges(&ranges, true, true, cx);
11186 }
11187
11188 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11189 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11190
11191 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11192 ..Point::new(
11193 unfold_at.buffer_row.0,
11194 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11195 );
11196
11197 let autoscroll = self
11198 .selections
11199 .all::<Point>(cx)
11200 .iter()
11201 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11202
11203 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11204 }
11205
11206 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11207 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11208 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11209 }
11210
11211 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11212 let selections = self.selections.all::<Point>(cx);
11213 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11214 let line_mode = self.selections.line_mode;
11215 let ranges = selections
11216 .into_iter()
11217 .map(|s| {
11218 if line_mode {
11219 let start = Point::new(s.start.row, 0);
11220 let end = Point::new(
11221 s.end.row,
11222 display_map
11223 .buffer_snapshot
11224 .line_len(MultiBufferRow(s.end.row)),
11225 );
11226 Crease::simple(start..end, display_map.fold_placeholder.clone())
11227 } else {
11228 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11229 }
11230 })
11231 .collect::<Vec<_>>();
11232 self.fold_creases(ranges, true, cx);
11233 }
11234
11235 pub fn fold_creases<T: ToOffset + Clone>(
11236 &mut self,
11237 creases: Vec<Crease<T>>,
11238 auto_scroll: bool,
11239 cx: &mut ViewContext<Self>,
11240 ) {
11241 if creases.is_empty() {
11242 return;
11243 }
11244
11245 let mut buffers_affected = HashMap::default();
11246 let multi_buffer = self.buffer().read(cx);
11247 for crease in &creases {
11248 if let Some((_, buffer, _)) =
11249 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11250 {
11251 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11252 };
11253 }
11254
11255 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11256
11257 if auto_scroll {
11258 self.request_autoscroll(Autoscroll::fit(), cx);
11259 }
11260
11261 for buffer in buffers_affected.into_values() {
11262 self.sync_expanded_diff_hunks(buffer, cx);
11263 }
11264
11265 cx.notify();
11266
11267 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11268 // Clear diagnostics block when folding a range that contains it.
11269 let snapshot = self.snapshot(cx);
11270 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11271 drop(snapshot);
11272 self.active_diagnostics = Some(active_diagnostics);
11273 self.dismiss_diagnostics(cx);
11274 } else {
11275 self.active_diagnostics = Some(active_diagnostics);
11276 }
11277 }
11278
11279 self.scrollbar_marker_state.dirty = true;
11280 }
11281
11282 /// Removes any folds whose ranges intersect any of the given ranges.
11283 pub fn unfold_ranges<T: ToOffset + Clone>(
11284 &mut self,
11285 ranges: &[Range<T>],
11286 inclusive: bool,
11287 auto_scroll: bool,
11288 cx: &mut ViewContext<Self>,
11289 ) {
11290 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11291 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11292 });
11293 }
11294
11295 /// Removes any folds with the given ranges.
11296 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11297 &mut self,
11298 ranges: &[Range<T>],
11299 type_id: TypeId,
11300 auto_scroll: bool,
11301 cx: &mut ViewContext<Self>,
11302 ) {
11303 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11304 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11305 });
11306 }
11307
11308 fn remove_folds_with<T: ToOffset + Clone>(
11309 &mut self,
11310 ranges: &[Range<T>],
11311 auto_scroll: bool,
11312 cx: &mut ViewContext<Self>,
11313 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11314 ) {
11315 if ranges.is_empty() {
11316 return;
11317 }
11318
11319 let mut buffers_affected = HashMap::default();
11320 let multi_buffer = self.buffer().read(cx);
11321 for range in ranges {
11322 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11323 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11324 };
11325 }
11326
11327 self.display_map.update(cx, update);
11328
11329 if auto_scroll {
11330 self.request_autoscroll(Autoscroll::fit(), cx);
11331 }
11332
11333 for buffer in buffers_affected.into_values() {
11334 self.sync_expanded_diff_hunks(buffer, cx);
11335 }
11336
11337 cx.notify();
11338 self.scrollbar_marker_state.dirty = true;
11339 self.active_indent_guides_state.dirty = true;
11340 }
11341
11342 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11343 self.display_map.read(cx).fold_placeholder.clone()
11344 }
11345
11346 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11347 if hovered != self.gutter_hovered {
11348 self.gutter_hovered = hovered;
11349 cx.notify();
11350 }
11351 }
11352
11353 pub fn insert_blocks(
11354 &mut self,
11355 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11356 autoscroll: Option<Autoscroll>,
11357 cx: &mut ViewContext<Self>,
11358 ) -> Vec<CustomBlockId> {
11359 let blocks = self
11360 .display_map
11361 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11362 if let Some(autoscroll) = autoscroll {
11363 self.request_autoscroll(autoscroll, cx);
11364 }
11365 cx.notify();
11366 blocks
11367 }
11368
11369 pub fn resize_blocks(
11370 &mut self,
11371 heights: HashMap<CustomBlockId, u32>,
11372 autoscroll: Option<Autoscroll>,
11373 cx: &mut ViewContext<Self>,
11374 ) {
11375 self.display_map
11376 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11377 if let Some(autoscroll) = autoscroll {
11378 self.request_autoscroll(autoscroll, cx);
11379 }
11380 cx.notify();
11381 }
11382
11383 pub fn replace_blocks(
11384 &mut self,
11385 renderers: HashMap<CustomBlockId, RenderBlock>,
11386 autoscroll: Option<Autoscroll>,
11387 cx: &mut ViewContext<Self>,
11388 ) {
11389 self.display_map
11390 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11391 if let Some(autoscroll) = autoscroll {
11392 self.request_autoscroll(autoscroll, cx);
11393 }
11394 cx.notify();
11395 }
11396
11397 pub fn remove_blocks(
11398 &mut self,
11399 block_ids: HashSet<CustomBlockId>,
11400 autoscroll: Option<Autoscroll>,
11401 cx: &mut ViewContext<Self>,
11402 ) {
11403 self.display_map.update(cx, |display_map, cx| {
11404 display_map.remove_blocks(block_ids, cx)
11405 });
11406 if let Some(autoscroll) = autoscroll {
11407 self.request_autoscroll(autoscroll, cx);
11408 }
11409 cx.notify();
11410 }
11411
11412 pub fn row_for_block(
11413 &self,
11414 block_id: CustomBlockId,
11415 cx: &mut ViewContext<Self>,
11416 ) -> Option<DisplayRow> {
11417 self.display_map
11418 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11419 }
11420
11421 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11422 self.focused_block = Some(focused_block);
11423 }
11424
11425 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11426 self.focused_block.take()
11427 }
11428
11429 pub fn insert_creases(
11430 &mut self,
11431 creases: impl IntoIterator<Item = Crease<Anchor>>,
11432 cx: &mut ViewContext<Self>,
11433 ) -> Vec<CreaseId> {
11434 self.display_map
11435 .update(cx, |map, cx| map.insert_creases(creases, cx))
11436 }
11437
11438 pub fn remove_creases(
11439 &mut self,
11440 ids: impl IntoIterator<Item = CreaseId>,
11441 cx: &mut ViewContext<Self>,
11442 ) {
11443 self.display_map
11444 .update(cx, |map, cx| map.remove_creases(ids, cx));
11445 }
11446
11447 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11448 self.display_map
11449 .update(cx, |map, cx| map.snapshot(cx))
11450 .longest_row()
11451 }
11452
11453 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11454 self.display_map
11455 .update(cx, |map, cx| map.snapshot(cx))
11456 .max_point()
11457 }
11458
11459 pub fn text(&self, cx: &AppContext) -> String {
11460 self.buffer.read(cx).read(cx).text()
11461 }
11462
11463 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11464 let text = self.text(cx);
11465 let text = text.trim();
11466
11467 if text.is_empty() {
11468 return None;
11469 }
11470
11471 Some(text.to_string())
11472 }
11473
11474 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11475 self.transact(cx, |this, cx| {
11476 this.buffer
11477 .read(cx)
11478 .as_singleton()
11479 .expect("you can only call set_text on editors for singleton buffers")
11480 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11481 });
11482 }
11483
11484 pub fn display_text(&self, cx: &mut AppContext) -> String {
11485 self.display_map
11486 .update(cx, |map, cx| map.snapshot(cx))
11487 .text()
11488 }
11489
11490 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11491 let mut wrap_guides = smallvec::smallvec![];
11492
11493 if self.show_wrap_guides == Some(false) {
11494 return wrap_guides;
11495 }
11496
11497 let settings = self.buffer.read(cx).settings_at(0, cx);
11498 if settings.show_wrap_guides {
11499 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11500 wrap_guides.push((soft_wrap as usize, true));
11501 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11502 wrap_guides.push((soft_wrap as usize, true));
11503 }
11504 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11505 }
11506
11507 wrap_guides
11508 }
11509
11510 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11511 let settings = self.buffer.read(cx).settings_at(0, cx);
11512 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11513 match mode {
11514 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11515 SoftWrap::None
11516 }
11517 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11518 language_settings::SoftWrap::PreferredLineLength => {
11519 SoftWrap::Column(settings.preferred_line_length)
11520 }
11521 language_settings::SoftWrap::Bounded => {
11522 SoftWrap::Bounded(settings.preferred_line_length)
11523 }
11524 }
11525 }
11526
11527 pub fn set_soft_wrap_mode(
11528 &mut self,
11529 mode: language_settings::SoftWrap,
11530 cx: &mut ViewContext<Self>,
11531 ) {
11532 self.soft_wrap_mode_override = Some(mode);
11533 cx.notify();
11534 }
11535
11536 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11537 self.text_style_refinement = Some(style);
11538 }
11539
11540 /// called by the Element so we know what style we were most recently rendered with.
11541 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11542 let rem_size = cx.rem_size();
11543 self.display_map.update(cx, |map, cx| {
11544 map.set_font(
11545 style.text.font(),
11546 style.text.font_size.to_pixels(rem_size),
11547 cx,
11548 )
11549 });
11550 self.style = Some(style);
11551 }
11552
11553 pub fn style(&self) -> Option<&EditorStyle> {
11554 self.style.as_ref()
11555 }
11556
11557 // Called by the element. This method is not designed to be called outside of the editor
11558 // element's layout code because it does not notify when rewrapping is computed synchronously.
11559 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11560 self.display_map
11561 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11562 }
11563
11564 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11565 if self.soft_wrap_mode_override.is_some() {
11566 self.soft_wrap_mode_override.take();
11567 } else {
11568 let soft_wrap = match self.soft_wrap_mode(cx) {
11569 SoftWrap::GitDiff => return,
11570 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11571 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11572 language_settings::SoftWrap::None
11573 }
11574 };
11575 self.soft_wrap_mode_override = Some(soft_wrap);
11576 }
11577 cx.notify();
11578 }
11579
11580 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11581 let Some(workspace) = self.workspace() else {
11582 return;
11583 };
11584 let fs = workspace.read(cx).app_state().fs.clone();
11585 let current_show = TabBarSettings::get_global(cx).show;
11586 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11587 setting.show = Some(!current_show);
11588 });
11589 }
11590
11591 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11592 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11593 self.buffer
11594 .read(cx)
11595 .settings_at(0, cx)
11596 .indent_guides
11597 .enabled
11598 });
11599 self.show_indent_guides = Some(!currently_enabled);
11600 cx.notify();
11601 }
11602
11603 fn should_show_indent_guides(&self) -> Option<bool> {
11604 self.show_indent_guides
11605 }
11606
11607 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11608 let mut editor_settings = EditorSettings::get_global(cx).clone();
11609 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11610 EditorSettings::override_global(editor_settings, cx);
11611 }
11612
11613 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11614 self.use_relative_line_numbers
11615 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11616 }
11617
11618 pub fn toggle_relative_line_numbers(
11619 &mut self,
11620 _: &ToggleRelativeLineNumbers,
11621 cx: &mut ViewContext<Self>,
11622 ) {
11623 let is_relative = self.should_use_relative_line_numbers(cx);
11624 self.set_relative_line_number(Some(!is_relative), cx)
11625 }
11626
11627 pub fn set_relative_line_number(
11628 &mut self,
11629 is_relative: Option<bool>,
11630 cx: &mut ViewContext<Self>,
11631 ) {
11632 self.use_relative_line_numbers = is_relative;
11633 cx.notify();
11634 }
11635
11636 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11637 self.show_gutter = show_gutter;
11638 cx.notify();
11639 }
11640
11641 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11642 self.show_line_numbers = Some(show_line_numbers);
11643 cx.notify();
11644 }
11645
11646 pub fn set_show_git_diff_gutter(
11647 &mut self,
11648 show_git_diff_gutter: bool,
11649 cx: &mut ViewContext<Self>,
11650 ) {
11651 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11652 cx.notify();
11653 }
11654
11655 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11656 self.show_code_actions = Some(show_code_actions);
11657 cx.notify();
11658 }
11659
11660 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11661 self.show_runnables = Some(show_runnables);
11662 cx.notify();
11663 }
11664
11665 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11666 if self.display_map.read(cx).masked != masked {
11667 self.display_map.update(cx, |map, _| map.masked = masked);
11668 }
11669 cx.notify()
11670 }
11671
11672 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11673 self.show_wrap_guides = Some(show_wrap_guides);
11674 cx.notify();
11675 }
11676
11677 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11678 self.show_indent_guides = Some(show_indent_guides);
11679 cx.notify();
11680 }
11681
11682 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11683 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11684 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11685 if let Some(dir) = file.abs_path(cx).parent() {
11686 return Some(dir.to_owned());
11687 }
11688 }
11689
11690 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11691 return Some(project_path.path.to_path_buf());
11692 }
11693 }
11694
11695 None
11696 }
11697
11698 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11699 self.active_excerpt(cx)?
11700 .1
11701 .read(cx)
11702 .file()
11703 .and_then(|f| f.as_local())
11704 }
11705
11706 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11707 if let Some(target) = self.target_file(cx) {
11708 cx.reveal_path(&target.abs_path(cx));
11709 }
11710 }
11711
11712 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11713 if let Some(file) = self.target_file(cx) {
11714 if let Some(path) = file.abs_path(cx).to_str() {
11715 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11716 }
11717 }
11718 }
11719
11720 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11721 if let Some(file) = self.target_file(cx) {
11722 if let Some(path) = file.path().to_str() {
11723 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11724 }
11725 }
11726 }
11727
11728 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11729 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11730
11731 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11732 self.start_git_blame(true, cx);
11733 }
11734
11735 cx.notify();
11736 }
11737
11738 pub fn toggle_git_blame_inline(
11739 &mut self,
11740 _: &ToggleGitBlameInline,
11741 cx: &mut ViewContext<Self>,
11742 ) {
11743 self.toggle_git_blame_inline_internal(true, cx);
11744 cx.notify();
11745 }
11746
11747 pub fn git_blame_inline_enabled(&self) -> bool {
11748 self.git_blame_inline_enabled
11749 }
11750
11751 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11752 self.show_selection_menu = self
11753 .show_selection_menu
11754 .map(|show_selections_menu| !show_selections_menu)
11755 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11756
11757 cx.notify();
11758 }
11759
11760 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11761 self.show_selection_menu
11762 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11763 }
11764
11765 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11766 if let Some(project) = self.project.as_ref() {
11767 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11768 return;
11769 };
11770
11771 if buffer.read(cx).file().is_none() {
11772 return;
11773 }
11774
11775 let focused = self.focus_handle(cx).contains_focused(cx);
11776
11777 let project = project.clone();
11778 let blame =
11779 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11780 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11781 self.blame = Some(blame);
11782 }
11783 }
11784
11785 fn toggle_git_blame_inline_internal(
11786 &mut self,
11787 user_triggered: bool,
11788 cx: &mut ViewContext<Self>,
11789 ) {
11790 if self.git_blame_inline_enabled {
11791 self.git_blame_inline_enabled = false;
11792 self.show_git_blame_inline = false;
11793 self.show_git_blame_inline_delay_task.take();
11794 } else {
11795 self.git_blame_inline_enabled = true;
11796 self.start_git_blame_inline(user_triggered, cx);
11797 }
11798
11799 cx.notify();
11800 }
11801
11802 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11803 self.start_git_blame(user_triggered, cx);
11804
11805 if ProjectSettings::get_global(cx)
11806 .git
11807 .inline_blame_delay()
11808 .is_some()
11809 {
11810 self.start_inline_blame_timer(cx);
11811 } else {
11812 self.show_git_blame_inline = true
11813 }
11814 }
11815
11816 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11817 self.blame.as_ref()
11818 }
11819
11820 pub fn show_git_blame_gutter(&self) -> bool {
11821 self.show_git_blame_gutter
11822 }
11823
11824 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11825 self.show_git_blame_gutter && self.has_blame_entries(cx)
11826 }
11827
11828 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11829 self.show_git_blame_inline
11830 && self.focus_handle.is_focused(cx)
11831 && !self.newest_selection_head_on_empty_line(cx)
11832 && self.has_blame_entries(cx)
11833 }
11834
11835 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11836 self.blame()
11837 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11838 }
11839
11840 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11841 let cursor_anchor = self.selections.newest_anchor().head();
11842
11843 let snapshot = self.buffer.read(cx).snapshot(cx);
11844 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11845
11846 snapshot.line_len(buffer_row) == 0
11847 }
11848
11849 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11850 let buffer_and_selection = maybe!({
11851 let selection = self.selections.newest::<Point>(cx);
11852 let selection_range = selection.range();
11853
11854 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11855 (buffer, selection_range.start.row..selection_range.end.row)
11856 } else {
11857 let buffer_ranges = self
11858 .buffer()
11859 .read(cx)
11860 .range_to_buffer_ranges(selection_range, cx);
11861
11862 let (buffer, range, _) = if selection.reversed {
11863 buffer_ranges.first()
11864 } else {
11865 buffer_ranges.last()
11866 }?;
11867
11868 let snapshot = buffer.read(cx).snapshot();
11869 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11870 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11871 (buffer.clone(), selection)
11872 };
11873
11874 Some((buffer, selection))
11875 });
11876
11877 let Some((buffer, selection)) = buffer_and_selection else {
11878 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11879 };
11880
11881 let Some(project) = self.project.as_ref() else {
11882 return Task::ready(Err(anyhow!("editor does not have project")));
11883 };
11884
11885 project.update(cx, |project, cx| {
11886 project.get_permalink_to_line(&buffer, selection, cx)
11887 })
11888 }
11889
11890 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11891 let permalink_task = self.get_permalink_to_line(cx);
11892 let workspace = self.workspace();
11893
11894 cx.spawn(|_, mut cx| async move {
11895 match permalink_task.await {
11896 Ok(permalink) => {
11897 cx.update(|cx| {
11898 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11899 })
11900 .ok();
11901 }
11902 Err(err) => {
11903 let message = format!("Failed to copy permalink: {err}");
11904
11905 Err::<(), anyhow::Error>(err).log_err();
11906
11907 if let Some(workspace) = workspace {
11908 workspace
11909 .update(&mut cx, |workspace, cx| {
11910 struct CopyPermalinkToLine;
11911
11912 workspace.show_toast(
11913 Toast::new(
11914 NotificationId::unique::<CopyPermalinkToLine>(),
11915 message,
11916 ),
11917 cx,
11918 )
11919 })
11920 .ok();
11921 }
11922 }
11923 }
11924 })
11925 .detach();
11926 }
11927
11928 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11929 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11930 if let Some(file) = self.target_file(cx) {
11931 if let Some(path) = file.path().to_str() {
11932 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11933 }
11934 }
11935 }
11936
11937 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11938 let permalink_task = self.get_permalink_to_line(cx);
11939 let workspace = self.workspace();
11940
11941 cx.spawn(|_, mut cx| async move {
11942 match permalink_task.await {
11943 Ok(permalink) => {
11944 cx.update(|cx| {
11945 cx.open_url(permalink.as_ref());
11946 })
11947 .ok();
11948 }
11949 Err(err) => {
11950 let message = format!("Failed to open permalink: {err}");
11951
11952 Err::<(), anyhow::Error>(err).log_err();
11953
11954 if let Some(workspace) = workspace {
11955 workspace
11956 .update(&mut cx, |workspace, cx| {
11957 struct OpenPermalinkToLine;
11958
11959 workspace.show_toast(
11960 Toast::new(
11961 NotificationId::unique::<OpenPermalinkToLine>(),
11962 message,
11963 ),
11964 cx,
11965 )
11966 })
11967 .ok();
11968 }
11969 }
11970 }
11971 })
11972 .detach();
11973 }
11974
11975 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11976 /// last highlight added will be used.
11977 ///
11978 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11979 pub fn highlight_rows<T: 'static>(
11980 &mut self,
11981 range: Range<Anchor>,
11982 color: Hsla,
11983 should_autoscroll: bool,
11984 cx: &mut ViewContext<Self>,
11985 ) {
11986 let snapshot = self.buffer().read(cx).snapshot(cx);
11987 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11988 let ix = row_highlights.binary_search_by(|highlight| {
11989 Ordering::Equal
11990 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11991 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11992 });
11993
11994 if let Err(mut ix) = ix {
11995 let index = post_inc(&mut self.highlight_order);
11996
11997 // If this range intersects with the preceding highlight, then merge it with
11998 // the preceding highlight. Otherwise insert a new highlight.
11999 let mut merged = false;
12000 if ix > 0 {
12001 let prev_highlight = &mut row_highlights[ix - 1];
12002 if prev_highlight
12003 .range
12004 .end
12005 .cmp(&range.start, &snapshot)
12006 .is_ge()
12007 {
12008 ix -= 1;
12009 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12010 prev_highlight.range.end = range.end;
12011 }
12012 merged = true;
12013 prev_highlight.index = index;
12014 prev_highlight.color = color;
12015 prev_highlight.should_autoscroll = should_autoscroll;
12016 }
12017 }
12018
12019 if !merged {
12020 row_highlights.insert(
12021 ix,
12022 RowHighlight {
12023 range: range.clone(),
12024 index,
12025 color,
12026 should_autoscroll,
12027 },
12028 );
12029 }
12030
12031 // If any of the following highlights intersect with this one, merge them.
12032 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12033 let highlight = &row_highlights[ix];
12034 if next_highlight
12035 .range
12036 .start
12037 .cmp(&highlight.range.end, &snapshot)
12038 .is_le()
12039 {
12040 if next_highlight
12041 .range
12042 .end
12043 .cmp(&highlight.range.end, &snapshot)
12044 .is_gt()
12045 {
12046 row_highlights[ix].range.end = next_highlight.range.end;
12047 }
12048 row_highlights.remove(ix + 1);
12049 } else {
12050 break;
12051 }
12052 }
12053 }
12054 }
12055
12056 /// Remove any highlighted row ranges of the given type that intersect the
12057 /// given ranges.
12058 pub fn remove_highlighted_rows<T: 'static>(
12059 &mut self,
12060 ranges_to_remove: Vec<Range<Anchor>>,
12061 cx: &mut ViewContext<Self>,
12062 ) {
12063 let snapshot = self.buffer().read(cx).snapshot(cx);
12064 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12065 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12066 row_highlights.retain(|highlight| {
12067 while let Some(range_to_remove) = ranges_to_remove.peek() {
12068 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12069 Ordering::Less | Ordering::Equal => {
12070 ranges_to_remove.next();
12071 }
12072 Ordering::Greater => {
12073 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12074 Ordering::Less | Ordering::Equal => {
12075 return false;
12076 }
12077 Ordering::Greater => break,
12078 }
12079 }
12080 }
12081 }
12082
12083 true
12084 })
12085 }
12086
12087 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12088 pub fn clear_row_highlights<T: 'static>(&mut self) {
12089 self.highlighted_rows.remove(&TypeId::of::<T>());
12090 }
12091
12092 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12093 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12094 self.highlighted_rows
12095 .get(&TypeId::of::<T>())
12096 .map_or(&[] as &[_], |vec| vec.as_slice())
12097 .iter()
12098 .map(|highlight| (highlight.range.clone(), highlight.color))
12099 }
12100
12101 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12102 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12103 /// Allows to ignore certain kinds of highlights.
12104 pub fn highlighted_display_rows(
12105 &mut self,
12106 cx: &mut WindowContext,
12107 ) -> BTreeMap<DisplayRow, Hsla> {
12108 let snapshot = self.snapshot(cx);
12109 let mut used_highlight_orders = HashMap::default();
12110 self.highlighted_rows
12111 .iter()
12112 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12113 .fold(
12114 BTreeMap::<DisplayRow, Hsla>::new(),
12115 |mut unique_rows, highlight| {
12116 let start = highlight.range.start.to_display_point(&snapshot);
12117 let end = highlight.range.end.to_display_point(&snapshot);
12118 let start_row = start.row().0;
12119 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12120 && end.column() == 0
12121 {
12122 end.row().0.saturating_sub(1)
12123 } else {
12124 end.row().0
12125 };
12126 for row in start_row..=end_row {
12127 let used_index =
12128 used_highlight_orders.entry(row).or_insert(highlight.index);
12129 if highlight.index >= *used_index {
12130 *used_index = highlight.index;
12131 unique_rows.insert(DisplayRow(row), highlight.color);
12132 }
12133 }
12134 unique_rows
12135 },
12136 )
12137 }
12138
12139 pub fn highlighted_display_row_for_autoscroll(
12140 &self,
12141 snapshot: &DisplaySnapshot,
12142 ) -> Option<DisplayRow> {
12143 self.highlighted_rows
12144 .values()
12145 .flat_map(|highlighted_rows| highlighted_rows.iter())
12146 .filter_map(|highlight| {
12147 if highlight.should_autoscroll {
12148 Some(highlight.range.start.to_display_point(snapshot).row())
12149 } else {
12150 None
12151 }
12152 })
12153 .min()
12154 }
12155
12156 pub fn set_search_within_ranges(
12157 &mut self,
12158 ranges: &[Range<Anchor>],
12159 cx: &mut ViewContext<Self>,
12160 ) {
12161 self.highlight_background::<SearchWithinRange>(
12162 ranges,
12163 |colors| colors.editor_document_highlight_read_background,
12164 cx,
12165 )
12166 }
12167
12168 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12169 self.breadcrumb_header = Some(new_header);
12170 }
12171
12172 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12173 self.clear_background_highlights::<SearchWithinRange>(cx);
12174 }
12175
12176 pub fn highlight_background<T: 'static>(
12177 &mut self,
12178 ranges: &[Range<Anchor>],
12179 color_fetcher: fn(&ThemeColors) -> Hsla,
12180 cx: &mut ViewContext<Self>,
12181 ) {
12182 self.background_highlights
12183 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12184 self.scrollbar_marker_state.dirty = true;
12185 cx.notify();
12186 }
12187
12188 pub fn clear_background_highlights<T: 'static>(
12189 &mut self,
12190 cx: &mut ViewContext<Self>,
12191 ) -> Option<BackgroundHighlight> {
12192 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12193 if !text_highlights.1.is_empty() {
12194 self.scrollbar_marker_state.dirty = true;
12195 cx.notify();
12196 }
12197 Some(text_highlights)
12198 }
12199
12200 pub fn highlight_gutter<T: 'static>(
12201 &mut self,
12202 ranges: &[Range<Anchor>],
12203 color_fetcher: fn(&AppContext) -> Hsla,
12204 cx: &mut ViewContext<Self>,
12205 ) {
12206 self.gutter_highlights
12207 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12208 cx.notify();
12209 }
12210
12211 pub fn clear_gutter_highlights<T: 'static>(
12212 &mut self,
12213 cx: &mut ViewContext<Self>,
12214 ) -> Option<GutterHighlight> {
12215 cx.notify();
12216 self.gutter_highlights.remove(&TypeId::of::<T>())
12217 }
12218
12219 #[cfg(feature = "test-support")]
12220 pub fn all_text_background_highlights(
12221 &mut self,
12222 cx: &mut ViewContext<Self>,
12223 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12224 let snapshot = self.snapshot(cx);
12225 let buffer = &snapshot.buffer_snapshot;
12226 let start = buffer.anchor_before(0);
12227 let end = buffer.anchor_after(buffer.len());
12228 let theme = cx.theme().colors();
12229 self.background_highlights_in_range(start..end, &snapshot, theme)
12230 }
12231
12232 #[cfg(feature = "test-support")]
12233 pub fn search_background_highlights(
12234 &mut self,
12235 cx: &mut ViewContext<Self>,
12236 ) -> Vec<Range<Point>> {
12237 let snapshot = self.buffer().read(cx).snapshot(cx);
12238
12239 let highlights = self
12240 .background_highlights
12241 .get(&TypeId::of::<items::BufferSearchHighlights>());
12242
12243 if let Some((_color, ranges)) = highlights {
12244 ranges
12245 .iter()
12246 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12247 .collect_vec()
12248 } else {
12249 vec![]
12250 }
12251 }
12252
12253 fn document_highlights_for_position<'a>(
12254 &'a self,
12255 position: Anchor,
12256 buffer: &'a MultiBufferSnapshot,
12257 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12258 let read_highlights = self
12259 .background_highlights
12260 .get(&TypeId::of::<DocumentHighlightRead>())
12261 .map(|h| &h.1);
12262 let write_highlights = self
12263 .background_highlights
12264 .get(&TypeId::of::<DocumentHighlightWrite>())
12265 .map(|h| &h.1);
12266 let left_position = position.bias_left(buffer);
12267 let right_position = position.bias_right(buffer);
12268 read_highlights
12269 .into_iter()
12270 .chain(write_highlights)
12271 .flat_map(move |ranges| {
12272 let start_ix = match ranges.binary_search_by(|probe| {
12273 let cmp = probe.end.cmp(&left_position, buffer);
12274 if cmp.is_ge() {
12275 Ordering::Greater
12276 } else {
12277 Ordering::Less
12278 }
12279 }) {
12280 Ok(i) | Err(i) => i,
12281 };
12282
12283 ranges[start_ix..]
12284 .iter()
12285 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12286 })
12287 }
12288
12289 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12290 self.background_highlights
12291 .get(&TypeId::of::<T>())
12292 .map_or(false, |(_, highlights)| !highlights.is_empty())
12293 }
12294
12295 pub fn background_highlights_in_range(
12296 &self,
12297 search_range: Range<Anchor>,
12298 display_snapshot: &DisplaySnapshot,
12299 theme: &ThemeColors,
12300 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12301 let mut results = Vec::new();
12302 for (color_fetcher, ranges) in self.background_highlights.values() {
12303 let color = color_fetcher(theme);
12304 let start_ix = match ranges.binary_search_by(|probe| {
12305 let cmp = probe
12306 .end
12307 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12308 if cmp.is_gt() {
12309 Ordering::Greater
12310 } else {
12311 Ordering::Less
12312 }
12313 }) {
12314 Ok(i) | Err(i) => i,
12315 };
12316 for range in &ranges[start_ix..] {
12317 if range
12318 .start
12319 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12320 .is_ge()
12321 {
12322 break;
12323 }
12324
12325 let start = range.start.to_display_point(display_snapshot);
12326 let end = range.end.to_display_point(display_snapshot);
12327 results.push((start..end, color))
12328 }
12329 }
12330 results
12331 }
12332
12333 pub fn background_highlight_row_ranges<T: 'static>(
12334 &self,
12335 search_range: Range<Anchor>,
12336 display_snapshot: &DisplaySnapshot,
12337 count: usize,
12338 ) -> Vec<RangeInclusive<DisplayPoint>> {
12339 let mut results = Vec::new();
12340 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12341 return vec![];
12342 };
12343
12344 let start_ix = match ranges.binary_search_by(|probe| {
12345 let cmp = probe
12346 .end
12347 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12348 if cmp.is_gt() {
12349 Ordering::Greater
12350 } else {
12351 Ordering::Less
12352 }
12353 }) {
12354 Ok(i) | Err(i) => i,
12355 };
12356 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12357 if let (Some(start_display), Some(end_display)) = (start, end) {
12358 results.push(
12359 start_display.to_display_point(display_snapshot)
12360 ..=end_display.to_display_point(display_snapshot),
12361 );
12362 }
12363 };
12364 let mut start_row: Option<Point> = None;
12365 let mut end_row: Option<Point> = None;
12366 if ranges.len() > count {
12367 return Vec::new();
12368 }
12369 for range in &ranges[start_ix..] {
12370 if range
12371 .start
12372 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12373 .is_ge()
12374 {
12375 break;
12376 }
12377 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12378 if let Some(current_row) = &end_row {
12379 if end.row == current_row.row {
12380 continue;
12381 }
12382 }
12383 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12384 if start_row.is_none() {
12385 assert_eq!(end_row, None);
12386 start_row = Some(start);
12387 end_row = Some(end);
12388 continue;
12389 }
12390 if let Some(current_end) = end_row.as_mut() {
12391 if start.row > current_end.row + 1 {
12392 push_region(start_row, end_row);
12393 start_row = Some(start);
12394 end_row = Some(end);
12395 } else {
12396 // Merge two hunks.
12397 *current_end = end;
12398 }
12399 } else {
12400 unreachable!();
12401 }
12402 }
12403 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12404 push_region(start_row, end_row);
12405 results
12406 }
12407
12408 pub fn gutter_highlights_in_range(
12409 &self,
12410 search_range: Range<Anchor>,
12411 display_snapshot: &DisplaySnapshot,
12412 cx: &AppContext,
12413 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12414 let mut results = Vec::new();
12415 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12416 let color = color_fetcher(cx);
12417 let start_ix = match ranges.binary_search_by(|probe| {
12418 let cmp = probe
12419 .end
12420 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12421 if cmp.is_gt() {
12422 Ordering::Greater
12423 } else {
12424 Ordering::Less
12425 }
12426 }) {
12427 Ok(i) | Err(i) => i,
12428 };
12429 for range in &ranges[start_ix..] {
12430 if range
12431 .start
12432 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12433 .is_ge()
12434 {
12435 break;
12436 }
12437
12438 let start = range.start.to_display_point(display_snapshot);
12439 let end = range.end.to_display_point(display_snapshot);
12440 results.push((start..end, color))
12441 }
12442 }
12443 results
12444 }
12445
12446 /// Get the text ranges corresponding to the redaction query
12447 pub fn redacted_ranges(
12448 &self,
12449 search_range: Range<Anchor>,
12450 display_snapshot: &DisplaySnapshot,
12451 cx: &WindowContext,
12452 ) -> Vec<Range<DisplayPoint>> {
12453 display_snapshot
12454 .buffer_snapshot
12455 .redacted_ranges(search_range, |file| {
12456 if let Some(file) = file {
12457 file.is_private()
12458 && EditorSettings::get(
12459 Some(SettingsLocation {
12460 worktree_id: file.worktree_id(cx),
12461 path: file.path().as_ref(),
12462 }),
12463 cx,
12464 )
12465 .redact_private_values
12466 } else {
12467 false
12468 }
12469 })
12470 .map(|range| {
12471 range.start.to_display_point(display_snapshot)
12472 ..range.end.to_display_point(display_snapshot)
12473 })
12474 .collect()
12475 }
12476
12477 pub fn highlight_text<T: 'static>(
12478 &mut self,
12479 ranges: Vec<Range<Anchor>>,
12480 style: HighlightStyle,
12481 cx: &mut ViewContext<Self>,
12482 ) {
12483 self.display_map.update(cx, |map, _| {
12484 map.highlight_text(TypeId::of::<T>(), ranges, style)
12485 });
12486 cx.notify();
12487 }
12488
12489 pub(crate) fn highlight_inlays<T: 'static>(
12490 &mut self,
12491 highlights: Vec<InlayHighlight>,
12492 style: HighlightStyle,
12493 cx: &mut ViewContext<Self>,
12494 ) {
12495 self.display_map.update(cx, |map, _| {
12496 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12497 });
12498 cx.notify();
12499 }
12500
12501 pub fn text_highlights<'a, T: 'static>(
12502 &'a self,
12503 cx: &'a AppContext,
12504 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12505 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12506 }
12507
12508 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12509 let cleared = self
12510 .display_map
12511 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12512 if cleared {
12513 cx.notify();
12514 }
12515 }
12516
12517 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12518 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12519 && self.focus_handle.is_focused(cx)
12520 }
12521
12522 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12523 self.show_cursor_when_unfocused = is_enabled;
12524 cx.notify();
12525 }
12526
12527 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12528 cx.notify();
12529 }
12530
12531 fn on_buffer_event(
12532 &mut self,
12533 multibuffer: Model<MultiBuffer>,
12534 event: &multi_buffer::Event,
12535 cx: &mut ViewContext<Self>,
12536 ) {
12537 match event {
12538 multi_buffer::Event::Edited {
12539 singleton_buffer_edited,
12540 } => {
12541 self.scrollbar_marker_state.dirty = true;
12542 self.active_indent_guides_state.dirty = true;
12543 self.refresh_active_diagnostics(cx);
12544 self.refresh_code_actions(cx);
12545 if self.has_active_inline_completion(cx) {
12546 self.update_visible_inline_completion(cx);
12547 }
12548 cx.emit(EditorEvent::BufferEdited);
12549 cx.emit(SearchEvent::MatchesInvalidated);
12550 if *singleton_buffer_edited {
12551 if let Some(project) = &self.project {
12552 let project = project.read(cx);
12553 #[allow(clippy::mutable_key_type)]
12554 let languages_affected = multibuffer
12555 .read(cx)
12556 .all_buffers()
12557 .into_iter()
12558 .filter_map(|buffer| {
12559 let buffer = buffer.read(cx);
12560 let language = buffer.language()?;
12561 if project.is_local()
12562 && project.language_servers_for_buffer(buffer, cx).count() == 0
12563 {
12564 None
12565 } else {
12566 Some(language)
12567 }
12568 })
12569 .cloned()
12570 .collect::<HashSet<_>>();
12571 if !languages_affected.is_empty() {
12572 self.refresh_inlay_hints(
12573 InlayHintRefreshReason::BufferEdited(languages_affected),
12574 cx,
12575 );
12576 }
12577 }
12578 }
12579
12580 let Some(project) = &self.project else { return };
12581 let (telemetry, is_via_ssh) = {
12582 let project = project.read(cx);
12583 let telemetry = project.client().telemetry().clone();
12584 let is_via_ssh = project.is_via_ssh();
12585 (telemetry, is_via_ssh)
12586 };
12587 refresh_linked_ranges(self, cx);
12588 telemetry.log_edit_event("editor", is_via_ssh);
12589 }
12590 multi_buffer::Event::ExcerptsAdded {
12591 buffer,
12592 predecessor,
12593 excerpts,
12594 } => {
12595 self.tasks_update_task = Some(self.refresh_runnables(cx));
12596 cx.emit(EditorEvent::ExcerptsAdded {
12597 buffer: buffer.clone(),
12598 predecessor: *predecessor,
12599 excerpts: excerpts.clone(),
12600 });
12601 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12602 }
12603 multi_buffer::Event::ExcerptsRemoved { ids } => {
12604 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12605 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12606 }
12607 multi_buffer::Event::ExcerptsEdited { ids } => {
12608 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12609 }
12610 multi_buffer::Event::ExcerptsExpanded { ids } => {
12611 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12612 }
12613 multi_buffer::Event::Reparsed(buffer_id) => {
12614 self.tasks_update_task = Some(self.refresh_runnables(cx));
12615
12616 cx.emit(EditorEvent::Reparsed(*buffer_id));
12617 }
12618 multi_buffer::Event::LanguageChanged(buffer_id) => {
12619 linked_editing_ranges::refresh_linked_ranges(self, cx);
12620 cx.emit(EditorEvent::Reparsed(*buffer_id));
12621 cx.notify();
12622 }
12623 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12624 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12625 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12626 cx.emit(EditorEvent::TitleChanged)
12627 }
12628 multi_buffer::Event::DiffBaseChanged => {
12629 self.scrollbar_marker_state.dirty = true;
12630 cx.emit(EditorEvent::DiffBaseChanged);
12631 cx.notify();
12632 }
12633 multi_buffer::Event::DiffUpdated { buffer } => {
12634 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12635 cx.notify();
12636 }
12637 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12638 multi_buffer::Event::DiagnosticsUpdated => {
12639 self.refresh_active_diagnostics(cx);
12640 self.scrollbar_marker_state.dirty = true;
12641 cx.notify();
12642 }
12643 _ => {}
12644 };
12645 }
12646
12647 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12648 cx.notify();
12649 }
12650
12651 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12652 self.tasks_update_task = Some(self.refresh_runnables(cx));
12653 self.refresh_inline_completion(true, false, cx);
12654 self.refresh_inlay_hints(
12655 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12656 self.selections.newest_anchor().head(),
12657 &self.buffer.read(cx).snapshot(cx),
12658 cx,
12659 )),
12660 cx,
12661 );
12662
12663 let old_cursor_shape = self.cursor_shape;
12664
12665 {
12666 let editor_settings = EditorSettings::get_global(cx);
12667 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12668 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12669 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12670 }
12671
12672 if old_cursor_shape != self.cursor_shape {
12673 cx.emit(EditorEvent::CursorShapeChanged);
12674 }
12675
12676 let project_settings = ProjectSettings::get_global(cx);
12677 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12678
12679 if self.mode == EditorMode::Full {
12680 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12681 if self.git_blame_inline_enabled != inline_blame_enabled {
12682 self.toggle_git_blame_inline_internal(false, cx);
12683 }
12684 }
12685
12686 cx.notify();
12687 }
12688
12689 pub fn set_searchable(&mut self, searchable: bool) {
12690 self.searchable = searchable;
12691 }
12692
12693 pub fn searchable(&self) -> bool {
12694 self.searchable
12695 }
12696
12697 fn open_proposed_changes_editor(
12698 &mut self,
12699 _: &OpenProposedChangesEditor,
12700 cx: &mut ViewContext<Self>,
12701 ) {
12702 let Some(workspace) = self.workspace() else {
12703 cx.propagate();
12704 return;
12705 };
12706
12707 let selections = self.selections.all::<usize>(cx);
12708 let buffer = self.buffer.read(cx);
12709 let mut new_selections_by_buffer = HashMap::default();
12710 for selection in selections {
12711 for (buffer, range, _) in
12712 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12713 {
12714 let mut range = range.to_point(buffer.read(cx));
12715 range.start.column = 0;
12716 range.end.column = buffer.read(cx).line_len(range.end.row);
12717 new_selections_by_buffer
12718 .entry(buffer)
12719 .or_insert(Vec::new())
12720 .push(range)
12721 }
12722 }
12723
12724 let proposed_changes_buffers = new_selections_by_buffer
12725 .into_iter()
12726 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12727 .collect::<Vec<_>>();
12728 let proposed_changes_editor = cx.new_view(|cx| {
12729 ProposedChangesEditor::new(
12730 "Proposed changes",
12731 proposed_changes_buffers,
12732 self.project.clone(),
12733 cx,
12734 )
12735 });
12736
12737 cx.window_context().defer(move |cx| {
12738 workspace.update(cx, |workspace, cx| {
12739 workspace.active_pane().update(cx, |pane, cx| {
12740 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12741 });
12742 });
12743 });
12744 }
12745
12746 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12747 self.open_excerpts_common(None, true, cx)
12748 }
12749
12750 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12751 self.open_excerpts_common(None, false, cx)
12752 }
12753
12754 fn open_excerpts_common(
12755 &mut self,
12756 jump_data: Option<JumpData>,
12757 split: bool,
12758 cx: &mut ViewContext<Self>,
12759 ) {
12760 let Some(workspace) = self.workspace() else {
12761 cx.propagate();
12762 return;
12763 };
12764
12765 if self.buffer.read(cx).is_singleton() {
12766 cx.propagate();
12767 return;
12768 }
12769
12770 let mut new_selections_by_buffer = HashMap::default();
12771 match &jump_data {
12772 Some(jump_data) => {
12773 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12774 if let Some(buffer) = multi_buffer_snapshot
12775 .buffer_id_for_excerpt(jump_data.excerpt_id)
12776 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12777 {
12778 let buffer_snapshot = buffer.read(cx).snapshot();
12779 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12780 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12781 } else {
12782 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12783 };
12784 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12785 new_selections_by_buffer.insert(
12786 buffer,
12787 (
12788 vec![jump_to_offset..jump_to_offset],
12789 Some(jump_data.line_offset_from_top),
12790 ),
12791 );
12792 }
12793 }
12794 None => {
12795 let selections = self.selections.all::<usize>(cx);
12796 let buffer = self.buffer.read(cx);
12797 for selection in selections {
12798 for (mut buffer_handle, mut range, _) in
12799 buffer.range_to_buffer_ranges(selection.range(), cx)
12800 {
12801 // When editing branch buffers, jump to the corresponding location
12802 // in their base buffer.
12803 let buffer = buffer_handle.read(cx);
12804 if let Some(base_buffer) = buffer.diff_base_buffer() {
12805 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12806 buffer_handle = base_buffer;
12807 }
12808
12809 if selection.reversed {
12810 mem::swap(&mut range.start, &mut range.end);
12811 }
12812 new_selections_by_buffer
12813 .entry(buffer_handle)
12814 .or_insert((Vec::new(), None))
12815 .0
12816 .push(range)
12817 }
12818 }
12819 }
12820 }
12821
12822 if new_selections_by_buffer.is_empty() {
12823 return;
12824 }
12825
12826 // We defer the pane interaction because we ourselves are a workspace item
12827 // and activating a new item causes the pane to call a method on us reentrantly,
12828 // which panics if we're on the stack.
12829 cx.window_context().defer(move |cx| {
12830 workspace.update(cx, |workspace, cx| {
12831 let pane = if split {
12832 workspace.adjacent_pane(cx)
12833 } else {
12834 workspace.active_pane().clone()
12835 };
12836
12837 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12838 let editor = buffer
12839 .read(cx)
12840 .file()
12841 .is_none()
12842 .then(|| {
12843 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12844 // so `workspace.open_project_item` will never find them, always opening a new editor.
12845 // Instead, we try to activate the existing editor in the pane first.
12846 let (editor, pane_item_index) =
12847 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12848 let editor = item.downcast::<Editor>()?;
12849 let singleton_buffer =
12850 editor.read(cx).buffer().read(cx).as_singleton()?;
12851 if singleton_buffer == buffer {
12852 Some((editor, i))
12853 } else {
12854 None
12855 }
12856 })?;
12857 pane.update(cx, |pane, cx| {
12858 pane.activate_item(pane_item_index, true, true, cx)
12859 });
12860 Some(editor)
12861 })
12862 .flatten()
12863 .unwrap_or_else(|| {
12864 workspace.open_project_item::<Self>(
12865 pane.clone(),
12866 buffer,
12867 true,
12868 true,
12869 cx,
12870 )
12871 });
12872
12873 editor.update(cx, |editor, cx| {
12874 let autoscroll = match scroll_offset {
12875 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12876 None => Autoscroll::newest(),
12877 };
12878 let nav_history = editor.nav_history.take();
12879 editor.change_selections(Some(autoscroll), cx, |s| {
12880 s.select_ranges(ranges);
12881 });
12882 editor.nav_history = nav_history;
12883 });
12884 }
12885 })
12886 });
12887 }
12888
12889 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12890 let snapshot = self.buffer.read(cx).read(cx);
12891 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12892 Some(
12893 ranges
12894 .iter()
12895 .map(move |range| {
12896 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12897 })
12898 .collect(),
12899 )
12900 }
12901
12902 fn selection_replacement_ranges(
12903 &self,
12904 range: Range<OffsetUtf16>,
12905 cx: &mut AppContext,
12906 ) -> Vec<Range<OffsetUtf16>> {
12907 let selections = self.selections.all::<OffsetUtf16>(cx);
12908 let newest_selection = selections
12909 .iter()
12910 .max_by_key(|selection| selection.id)
12911 .unwrap();
12912 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12913 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12914 let snapshot = self.buffer.read(cx).read(cx);
12915 selections
12916 .into_iter()
12917 .map(|mut selection| {
12918 selection.start.0 =
12919 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12920 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12921 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12922 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12923 })
12924 .collect()
12925 }
12926
12927 fn report_editor_event(
12928 &self,
12929 operation: &'static str,
12930 file_extension: Option<String>,
12931 cx: &AppContext,
12932 ) {
12933 if cfg!(any(test, feature = "test-support")) {
12934 return;
12935 }
12936
12937 let Some(project) = &self.project else { return };
12938
12939 // If None, we are in a file without an extension
12940 let file = self
12941 .buffer
12942 .read(cx)
12943 .as_singleton()
12944 .and_then(|b| b.read(cx).file());
12945 let file_extension = file_extension.or(file
12946 .as_ref()
12947 .and_then(|file| Path::new(file.file_name(cx)).extension())
12948 .and_then(|e| e.to_str())
12949 .map(|a| a.to_string()));
12950
12951 let vim_mode = cx
12952 .global::<SettingsStore>()
12953 .raw_user_settings()
12954 .get("vim_mode")
12955 == Some(&serde_json::Value::Bool(true));
12956
12957 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12958 == language::language_settings::InlineCompletionProvider::Copilot;
12959 let copilot_enabled_for_language = self
12960 .buffer
12961 .read(cx)
12962 .settings_at(0, cx)
12963 .show_inline_completions;
12964
12965 let project = project.read(cx);
12966 let telemetry = project.client().telemetry().clone();
12967 telemetry.report_editor_event(
12968 file_extension,
12969 vim_mode,
12970 operation,
12971 copilot_enabled,
12972 copilot_enabled_for_language,
12973 project.is_via_ssh(),
12974 )
12975 }
12976
12977 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12978 /// with each line being an array of {text, highlight} objects.
12979 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12980 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12981 return;
12982 };
12983
12984 #[derive(Serialize)]
12985 struct Chunk<'a> {
12986 text: String,
12987 highlight: Option<&'a str>,
12988 }
12989
12990 let snapshot = buffer.read(cx).snapshot();
12991 let range = self
12992 .selected_text_range(false, cx)
12993 .and_then(|selection| {
12994 if selection.range.is_empty() {
12995 None
12996 } else {
12997 Some(selection.range)
12998 }
12999 })
13000 .unwrap_or_else(|| 0..snapshot.len());
13001
13002 let chunks = snapshot.chunks(range, true);
13003 let mut lines = Vec::new();
13004 let mut line: VecDeque<Chunk> = VecDeque::new();
13005
13006 let Some(style) = self.style.as_ref() else {
13007 return;
13008 };
13009
13010 for chunk in chunks {
13011 let highlight = chunk
13012 .syntax_highlight_id
13013 .and_then(|id| id.name(&style.syntax));
13014 let mut chunk_lines = chunk.text.split('\n').peekable();
13015 while let Some(text) = chunk_lines.next() {
13016 let mut merged_with_last_token = false;
13017 if let Some(last_token) = line.back_mut() {
13018 if last_token.highlight == highlight {
13019 last_token.text.push_str(text);
13020 merged_with_last_token = true;
13021 }
13022 }
13023
13024 if !merged_with_last_token {
13025 line.push_back(Chunk {
13026 text: text.into(),
13027 highlight,
13028 });
13029 }
13030
13031 if chunk_lines.peek().is_some() {
13032 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13033 line.pop_front();
13034 }
13035 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13036 line.pop_back();
13037 }
13038
13039 lines.push(mem::take(&mut line));
13040 }
13041 }
13042 }
13043
13044 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13045 return;
13046 };
13047 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13048 }
13049
13050 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13051 &self.inlay_hint_cache
13052 }
13053
13054 pub fn replay_insert_event(
13055 &mut self,
13056 text: &str,
13057 relative_utf16_range: Option<Range<isize>>,
13058 cx: &mut ViewContext<Self>,
13059 ) {
13060 if !self.input_enabled {
13061 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13062 return;
13063 }
13064 if let Some(relative_utf16_range) = relative_utf16_range {
13065 let selections = self.selections.all::<OffsetUtf16>(cx);
13066 self.change_selections(None, cx, |s| {
13067 let new_ranges = selections.into_iter().map(|range| {
13068 let start = OffsetUtf16(
13069 range
13070 .head()
13071 .0
13072 .saturating_add_signed(relative_utf16_range.start),
13073 );
13074 let end = OffsetUtf16(
13075 range
13076 .head()
13077 .0
13078 .saturating_add_signed(relative_utf16_range.end),
13079 );
13080 start..end
13081 });
13082 s.select_ranges(new_ranges);
13083 });
13084 }
13085
13086 self.handle_input(text, cx);
13087 }
13088
13089 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13090 let Some(provider) = self.semantics_provider.as_ref() else {
13091 return false;
13092 };
13093
13094 let mut supports = false;
13095 self.buffer().read(cx).for_each_buffer(|buffer| {
13096 supports |= provider.supports_inlay_hints(buffer, cx);
13097 });
13098 supports
13099 }
13100
13101 pub fn focus(&self, cx: &mut WindowContext) {
13102 cx.focus(&self.focus_handle)
13103 }
13104
13105 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13106 self.focus_handle.is_focused(cx)
13107 }
13108
13109 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13110 cx.emit(EditorEvent::Focused);
13111
13112 if let Some(descendant) = self
13113 .last_focused_descendant
13114 .take()
13115 .and_then(|descendant| descendant.upgrade())
13116 {
13117 cx.focus(&descendant);
13118 } else {
13119 if let Some(blame) = self.blame.as_ref() {
13120 blame.update(cx, GitBlame::focus)
13121 }
13122
13123 self.blink_manager.update(cx, BlinkManager::enable);
13124 self.show_cursor_names(cx);
13125 self.buffer.update(cx, |buffer, cx| {
13126 buffer.finalize_last_transaction(cx);
13127 if self.leader_peer_id.is_none() {
13128 buffer.set_active_selections(
13129 &self.selections.disjoint_anchors(),
13130 self.selections.line_mode,
13131 self.cursor_shape,
13132 cx,
13133 );
13134 }
13135 });
13136 }
13137 }
13138
13139 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13140 cx.emit(EditorEvent::FocusedIn)
13141 }
13142
13143 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13144 if event.blurred != self.focus_handle {
13145 self.last_focused_descendant = Some(event.blurred);
13146 }
13147 }
13148
13149 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13150 self.blink_manager.update(cx, BlinkManager::disable);
13151 self.buffer
13152 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13153
13154 if let Some(blame) = self.blame.as_ref() {
13155 blame.update(cx, GitBlame::blur)
13156 }
13157 if !self.hover_state.focused(cx) {
13158 hide_hover(self, cx);
13159 }
13160
13161 self.hide_context_menu(cx);
13162 cx.emit(EditorEvent::Blurred);
13163 cx.notify();
13164 }
13165
13166 pub fn register_action<A: Action>(
13167 &mut self,
13168 listener: impl Fn(&A, &mut WindowContext) + 'static,
13169 ) -> Subscription {
13170 let id = self.next_editor_action_id.post_inc();
13171 let listener = Arc::new(listener);
13172 self.editor_actions.borrow_mut().insert(
13173 id,
13174 Box::new(move |cx| {
13175 let cx = cx.window_context();
13176 let listener = listener.clone();
13177 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13178 let action = action.downcast_ref().unwrap();
13179 if phase == DispatchPhase::Bubble {
13180 listener(action, cx)
13181 }
13182 })
13183 }),
13184 );
13185
13186 let editor_actions = self.editor_actions.clone();
13187 Subscription::new(move || {
13188 editor_actions.borrow_mut().remove(&id);
13189 })
13190 }
13191
13192 pub fn file_header_size(&self) -> u32 {
13193 FILE_HEADER_HEIGHT
13194 }
13195
13196 pub fn revert(
13197 &mut self,
13198 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13199 cx: &mut ViewContext<Self>,
13200 ) {
13201 self.buffer().update(cx, |multi_buffer, cx| {
13202 for (buffer_id, changes) in revert_changes {
13203 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13204 buffer.update(cx, |buffer, cx| {
13205 buffer.edit(
13206 changes.into_iter().map(|(range, text)| {
13207 (range, text.to_string().map(Arc::<str>::from))
13208 }),
13209 None,
13210 cx,
13211 );
13212 });
13213 }
13214 }
13215 });
13216 self.change_selections(None, cx, |selections| selections.refresh());
13217 }
13218
13219 pub fn to_pixel_point(
13220 &mut self,
13221 source: multi_buffer::Anchor,
13222 editor_snapshot: &EditorSnapshot,
13223 cx: &mut ViewContext<Self>,
13224 ) -> Option<gpui::Point<Pixels>> {
13225 let source_point = source.to_display_point(editor_snapshot);
13226 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13227 }
13228
13229 pub fn display_to_pixel_point(
13230 &mut self,
13231 source: DisplayPoint,
13232 editor_snapshot: &EditorSnapshot,
13233 cx: &mut ViewContext<Self>,
13234 ) -> Option<gpui::Point<Pixels>> {
13235 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13236 let text_layout_details = self.text_layout_details(cx);
13237 let scroll_top = text_layout_details
13238 .scroll_anchor
13239 .scroll_position(editor_snapshot)
13240 .y;
13241
13242 if source.row().as_f32() < scroll_top.floor() {
13243 return None;
13244 }
13245 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13246 let source_y = line_height * (source.row().as_f32() - scroll_top);
13247 Some(gpui::Point::new(source_x, source_y))
13248 }
13249
13250 pub fn has_active_completions_menu(&self) -> bool {
13251 self.context_menu.read().as_ref().map_or(false, |menu| {
13252 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13253 })
13254 }
13255
13256 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13257 self.addons
13258 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13259 }
13260
13261 pub fn unregister_addon<T: Addon>(&mut self) {
13262 self.addons.remove(&std::any::TypeId::of::<T>());
13263 }
13264
13265 pub fn addon<T: Addon>(&self) -> Option<&T> {
13266 let type_id = std::any::TypeId::of::<T>();
13267 self.addons
13268 .get(&type_id)
13269 .and_then(|item| item.to_any().downcast_ref::<T>())
13270 }
13271}
13272
13273fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13274 let tab_size = tab_size.get() as usize;
13275 let mut width = offset;
13276
13277 for ch in text.chars() {
13278 width += if ch == '\t' {
13279 tab_size - (width % tab_size)
13280 } else {
13281 1
13282 };
13283 }
13284
13285 width - offset
13286}
13287
13288#[cfg(test)]
13289mod tests {
13290 use super::*;
13291
13292 #[test]
13293 fn test_string_size_with_expanded_tabs() {
13294 let nz = |val| NonZeroU32::new(val).unwrap();
13295 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13296 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13297 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13298 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13299 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13300 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13301 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13302 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13303 }
13304}
13305
13306/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13307struct WordBreakingTokenizer<'a> {
13308 input: &'a str,
13309}
13310
13311impl<'a> WordBreakingTokenizer<'a> {
13312 fn new(input: &'a str) -> Self {
13313 Self { input }
13314 }
13315}
13316
13317fn is_char_ideographic(ch: char) -> bool {
13318 use unicode_script::Script::*;
13319 use unicode_script::UnicodeScript;
13320 matches!(ch.script(), Han | Tangut | Yi)
13321}
13322
13323fn is_grapheme_ideographic(text: &str) -> bool {
13324 text.chars().any(is_char_ideographic)
13325}
13326
13327fn is_grapheme_whitespace(text: &str) -> bool {
13328 text.chars().any(|x| x.is_whitespace())
13329}
13330
13331fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13332 text.chars().next().map_or(false, |ch| {
13333 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13334 })
13335}
13336
13337#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13338struct WordBreakToken<'a> {
13339 token: &'a str,
13340 grapheme_len: usize,
13341 is_whitespace: bool,
13342}
13343
13344impl<'a> Iterator for WordBreakingTokenizer<'a> {
13345 /// Yields a span, the count of graphemes in the token, and whether it was
13346 /// whitespace. Note that it also breaks at word boundaries.
13347 type Item = WordBreakToken<'a>;
13348
13349 fn next(&mut self) -> Option<Self::Item> {
13350 use unicode_segmentation::UnicodeSegmentation;
13351 if self.input.is_empty() {
13352 return None;
13353 }
13354
13355 let mut iter = self.input.graphemes(true).peekable();
13356 let mut offset = 0;
13357 let mut graphemes = 0;
13358 if let Some(first_grapheme) = iter.next() {
13359 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13360 offset += first_grapheme.len();
13361 graphemes += 1;
13362 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13363 if let Some(grapheme) = iter.peek().copied() {
13364 if should_stay_with_preceding_ideograph(grapheme) {
13365 offset += grapheme.len();
13366 graphemes += 1;
13367 }
13368 }
13369 } else {
13370 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13371 let mut next_word_bound = words.peek().copied();
13372 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13373 next_word_bound = words.next();
13374 }
13375 while let Some(grapheme) = iter.peek().copied() {
13376 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13377 break;
13378 };
13379 if is_grapheme_whitespace(grapheme) != is_whitespace {
13380 break;
13381 };
13382 offset += grapheme.len();
13383 graphemes += 1;
13384 iter.next();
13385 }
13386 }
13387 let token = &self.input[..offset];
13388 self.input = &self.input[offset..];
13389 if is_whitespace {
13390 Some(WordBreakToken {
13391 token: " ",
13392 grapheme_len: 1,
13393 is_whitespace: true,
13394 })
13395 } else {
13396 Some(WordBreakToken {
13397 token,
13398 grapheme_len: graphemes,
13399 is_whitespace: false,
13400 })
13401 }
13402 } else {
13403 None
13404 }
13405 }
13406}
13407
13408#[test]
13409fn test_word_breaking_tokenizer() {
13410 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13411 ("", &[]),
13412 (" ", &[(" ", 1, true)]),
13413 ("Ʒ", &[("Ʒ", 1, false)]),
13414 ("Ǽ", &[("Ǽ", 1, false)]),
13415 ("⋑", &[("⋑", 1, false)]),
13416 ("⋑⋑", &[("⋑⋑", 2, false)]),
13417 (
13418 "原理，进而",
13419 &[
13420 ("原", 1, false),
13421 ("理，", 2, false),
13422 ("进", 1, false),
13423 ("而", 1, false),
13424 ],
13425 ),
13426 (
13427 "hello world",
13428 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13429 ),
13430 (
13431 "hello, world",
13432 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13433 ),
13434 (
13435 " hello world",
13436 &[
13437 (" ", 1, true),
13438 ("hello", 5, false),
13439 (" ", 1, true),
13440 ("world", 5, false),
13441 ],
13442 ),
13443 (
13444 "这是什么 \n 钢笔",
13445 &[
13446 ("这", 1, false),
13447 ("是", 1, false),
13448 ("什", 1, false),
13449 ("么", 1, false),
13450 (" ", 1, true),
13451 ("钢", 1, false),
13452 ("笔", 1, false),
13453 ],
13454 ),
13455 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13456 ];
13457
13458 for (input, result) in tests {
13459 assert_eq!(
13460 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13461 result
13462 .iter()
13463 .copied()
13464 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13465 token,
13466 grapheme_len,
13467 is_whitespace,
13468 })
13469 .collect::<Vec<_>>()
13470 );
13471 }
13472}
13473
13474fn wrap_with_prefix(
13475 line_prefix: String,
13476 unwrapped_text: String,
13477 wrap_column: usize,
13478 tab_size: NonZeroU32,
13479) -> String {
13480 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13481 let mut wrapped_text = String::new();
13482 let mut current_line = line_prefix.clone();
13483
13484 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13485 let mut current_line_len = line_prefix_len;
13486 for WordBreakToken {
13487 token,
13488 grapheme_len,
13489 is_whitespace,
13490 } in tokenizer
13491 {
13492 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13493 wrapped_text.push_str(current_line.trim_end());
13494 wrapped_text.push('\n');
13495 current_line.truncate(line_prefix.len());
13496 current_line_len = line_prefix_len;
13497 if !is_whitespace {
13498 current_line.push_str(token);
13499 current_line_len += grapheme_len;
13500 }
13501 } else if !is_whitespace {
13502 current_line.push_str(token);
13503 current_line_len += grapheme_len;
13504 } else if current_line_len != line_prefix_len {
13505 current_line.push(' ');
13506 current_line_len += 1;
13507 }
13508 }
13509
13510 if !current_line.is_empty() {
13511 wrapped_text.push_str(¤t_line);
13512 }
13513 wrapped_text
13514}
13515
13516#[test]
13517fn test_wrap_with_prefix() {
13518 assert_eq!(
13519 wrap_with_prefix(
13520 "# ".to_string(),
13521 "abcdefg".to_string(),
13522 4,
13523 NonZeroU32::new(4).unwrap()
13524 ),
13525 "# abcdefg"
13526 );
13527 assert_eq!(
13528 wrap_with_prefix(
13529 "".to_string(),
13530 "\thello world".to_string(),
13531 8,
13532 NonZeroU32::new(4).unwrap()
13533 ),
13534 "hello\nworld"
13535 );
13536 assert_eq!(
13537 wrap_with_prefix(
13538 "// ".to_string(),
13539 "xx \nyy zz aa bb cc".to_string(),
13540 12,
13541 NonZeroU32::new(4).unwrap()
13542 ),
13543 "// xx yy zz\n// aa bb cc"
13544 );
13545 assert_eq!(
13546 wrap_with_prefix(
13547 String::new(),
13548 "这是什么 \n 钢笔".to_string(),
13549 3,
13550 NonZeroU32::new(4).unwrap()
13551 ),
13552 "这是什\n么 钢\n笔"
13553 );
13554}
13555
13556fn hunks_for_selections(
13557 multi_buffer_snapshot: &MultiBufferSnapshot,
13558 selections: &[Selection<Anchor>],
13559) -> Vec<MultiBufferDiffHunk> {
13560 let buffer_rows_for_selections = selections.iter().map(|selection| {
13561 let head = selection.head();
13562 let tail = selection.tail();
13563 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13564 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13565 if start > end {
13566 end..start
13567 } else {
13568 start..end
13569 }
13570 });
13571
13572 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13573}
13574
13575pub fn hunks_for_rows(
13576 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13577 multi_buffer_snapshot: &MultiBufferSnapshot,
13578) -> Vec<MultiBufferDiffHunk> {
13579 let mut hunks = Vec::new();
13580 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13581 HashMap::default();
13582 for selected_multi_buffer_rows in rows {
13583 let query_rows =
13584 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13585 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13586 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13587 // when the caret is just above or just below the deleted hunk.
13588 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13589 let related_to_selection = if allow_adjacent {
13590 hunk.row_range.overlaps(&query_rows)
13591 || hunk.row_range.start == query_rows.end
13592 || hunk.row_range.end == query_rows.start
13593 } else {
13594 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13595 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13596 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13597 || selected_multi_buffer_rows.end == hunk.row_range.start
13598 };
13599 if related_to_selection {
13600 if !processed_buffer_rows
13601 .entry(hunk.buffer_id)
13602 .or_default()
13603 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13604 {
13605 continue;
13606 }
13607 hunks.push(hunk);
13608 }
13609 }
13610 }
13611
13612 hunks
13613}
13614
13615pub trait CollaborationHub {
13616 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13617 fn user_participant_indices<'a>(
13618 &self,
13619 cx: &'a AppContext,
13620 ) -> &'a HashMap<u64, ParticipantIndex>;
13621 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13622}
13623
13624impl CollaborationHub for Model<Project> {
13625 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13626 self.read(cx).collaborators()
13627 }
13628
13629 fn user_participant_indices<'a>(
13630 &self,
13631 cx: &'a AppContext,
13632 ) -> &'a HashMap<u64, ParticipantIndex> {
13633 self.read(cx).user_store().read(cx).participant_indices()
13634 }
13635
13636 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13637 let this = self.read(cx);
13638 let user_ids = this.collaborators().values().map(|c| c.user_id);
13639 this.user_store().read_with(cx, |user_store, cx| {
13640 user_store.participant_names(user_ids, cx)
13641 })
13642 }
13643}
13644
13645pub trait SemanticsProvider {
13646 fn hover(
13647 &self,
13648 buffer: &Model<Buffer>,
13649 position: text::Anchor,
13650 cx: &mut AppContext,
13651 ) -> Option<Task<Vec<project::Hover>>>;
13652
13653 fn inlay_hints(
13654 &self,
13655 buffer_handle: Model<Buffer>,
13656 range: Range<text::Anchor>,
13657 cx: &mut AppContext,
13658 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13659
13660 fn resolve_inlay_hint(
13661 &self,
13662 hint: InlayHint,
13663 buffer_handle: Model<Buffer>,
13664 server_id: LanguageServerId,
13665 cx: &mut AppContext,
13666 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13667
13668 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13669
13670 fn document_highlights(
13671 &self,
13672 buffer: &Model<Buffer>,
13673 position: text::Anchor,
13674 cx: &mut AppContext,
13675 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13676
13677 fn definitions(
13678 &self,
13679 buffer: &Model<Buffer>,
13680 position: text::Anchor,
13681 kind: GotoDefinitionKind,
13682 cx: &mut AppContext,
13683 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13684
13685 fn range_for_rename(
13686 &self,
13687 buffer: &Model<Buffer>,
13688 position: text::Anchor,
13689 cx: &mut AppContext,
13690 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13691
13692 fn perform_rename(
13693 &self,
13694 buffer: &Model<Buffer>,
13695 position: text::Anchor,
13696 new_name: String,
13697 cx: &mut AppContext,
13698 ) -> Option<Task<Result<ProjectTransaction>>>;
13699}
13700
13701pub trait CompletionProvider {
13702 fn completions(
13703 &self,
13704 buffer: &Model<Buffer>,
13705 buffer_position: text::Anchor,
13706 trigger: CompletionContext,
13707 cx: &mut ViewContext<Editor>,
13708 ) -> Task<Result<Vec<Completion>>>;
13709
13710 fn resolve_completions(
13711 &self,
13712 buffer: Model<Buffer>,
13713 completion_indices: Vec<usize>,
13714 completions: Arc<RwLock<Box<[Completion]>>>,
13715 cx: &mut ViewContext<Editor>,
13716 ) -> Task<Result<bool>>;
13717
13718 fn apply_additional_edits_for_completion(
13719 &self,
13720 buffer: Model<Buffer>,
13721 completion: Completion,
13722 push_to_history: bool,
13723 cx: &mut ViewContext<Editor>,
13724 ) -> Task<Result<Option<language::Transaction>>>;
13725
13726 fn is_completion_trigger(
13727 &self,
13728 buffer: &Model<Buffer>,
13729 position: language::Anchor,
13730 text: &str,
13731 trigger_in_words: bool,
13732 cx: &mut ViewContext<Editor>,
13733 ) -> bool;
13734
13735 fn sort_completions(&self) -> bool {
13736 true
13737 }
13738}
13739
13740pub trait CodeActionProvider {
13741 fn code_actions(
13742 &self,
13743 buffer: &Model<Buffer>,
13744 range: Range<text::Anchor>,
13745 cx: &mut WindowContext,
13746 ) -> Task<Result<Vec<CodeAction>>>;
13747
13748 fn apply_code_action(
13749 &self,
13750 buffer_handle: Model<Buffer>,
13751 action: CodeAction,
13752 excerpt_id: ExcerptId,
13753 push_to_history: bool,
13754 cx: &mut WindowContext,
13755 ) -> Task<Result<ProjectTransaction>>;
13756}
13757
13758impl CodeActionProvider for Model<Project> {
13759 fn code_actions(
13760 &self,
13761 buffer: &Model<Buffer>,
13762 range: Range<text::Anchor>,
13763 cx: &mut WindowContext,
13764 ) -> Task<Result<Vec<CodeAction>>> {
13765 self.update(cx, |project, cx| {
13766 project.code_actions(buffer, range, None, cx)
13767 })
13768 }
13769
13770 fn apply_code_action(
13771 &self,
13772 buffer_handle: Model<Buffer>,
13773 action: CodeAction,
13774 _excerpt_id: ExcerptId,
13775 push_to_history: bool,
13776 cx: &mut WindowContext,
13777 ) -> Task<Result<ProjectTransaction>> {
13778 self.update(cx, |project, cx| {
13779 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13780 })
13781 }
13782}
13783
13784fn snippet_completions(
13785 project: &Project,
13786 buffer: &Model<Buffer>,
13787 buffer_position: text::Anchor,
13788 cx: &mut AppContext,
13789) -> Vec<Completion> {
13790 let language = buffer.read(cx).language_at(buffer_position);
13791 let language_name = language.as_ref().map(|language| language.lsp_id());
13792 let snippet_store = project.snippets().read(cx);
13793 let snippets = snippet_store.snippets_for(language_name, cx);
13794
13795 if snippets.is_empty() {
13796 return vec![];
13797 }
13798 let snapshot = buffer.read(cx).text_snapshot();
13799 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13800
13801 let scope = language.map(|language| language.default_scope());
13802 let classifier = CharClassifier::new(scope).for_completion(true);
13803 let mut last_word = chars
13804 .take_while(|c| classifier.is_word(*c))
13805 .collect::<String>();
13806 last_word = last_word.chars().rev().collect();
13807 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13808 let to_lsp = |point: &text::Anchor| {
13809 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13810 point_to_lsp(end)
13811 };
13812 let lsp_end = to_lsp(&buffer_position);
13813 snippets
13814 .into_iter()
13815 .filter_map(|snippet| {
13816 let matching_prefix = snippet
13817 .prefix
13818 .iter()
13819 .find(|prefix| prefix.starts_with(&last_word))?;
13820 let start = as_offset - last_word.len();
13821 let start = snapshot.anchor_before(start);
13822 let range = start..buffer_position;
13823 let lsp_start = to_lsp(&start);
13824 let lsp_range = lsp::Range {
13825 start: lsp_start,
13826 end: lsp_end,
13827 };
13828 Some(Completion {
13829 old_range: range,
13830 new_text: snippet.body.clone(),
13831 label: CodeLabel {
13832 text: matching_prefix.clone(),
13833 runs: vec![],
13834 filter_range: 0..matching_prefix.len(),
13835 },
13836 server_id: LanguageServerId(usize::MAX),
13837 documentation: snippet.description.clone().map(Documentation::SingleLine),
13838 lsp_completion: lsp::CompletionItem {
13839 label: snippet.prefix.first().unwrap().clone(),
13840 kind: Some(CompletionItemKind::SNIPPET),
13841 label_details: snippet.description.as_ref().map(|description| {
13842 lsp::CompletionItemLabelDetails {
13843 detail: Some(description.clone()),
13844 description: None,
13845 }
13846 }),
13847 insert_text_format: Some(InsertTextFormat::SNIPPET),
13848 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13849 lsp::InsertReplaceEdit {
13850 new_text: snippet.body.clone(),
13851 insert: lsp_range,
13852 replace: lsp_range,
13853 },
13854 )),
13855 filter_text: Some(snippet.body.clone()),
13856 sort_text: Some(char::MAX.to_string()),
13857 ..Default::default()
13858 },
13859 confirm: None,
13860 })
13861 })
13862 .collect()
13863}
13864
13865impl CompletionProvider for Model<Project> {
13866 fn completions(
13867 &self,
13868 buffer: &Model<Buffer>,
13869 buffer_position: text::Anchor,
13870 options: CompletionContext,
13871 cx: &mut ViewContext<Editor>,
13872 ) -> Task<Result<Vec<Completion>>> {
13873 self.update(cx, |project, cx| {
13874 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13875 let project_completions = project.completions(buffer, buffer_position, options, cx);
13876 cx.background_executor().spawn(async move {
13877 let mut completions = project_completions.await?;
13878 //let snippets = snippets.into_iter().;
13879 completions.extend(snippets);
13880 Ok(completions)
13881 })
13882 })
13883 }
13884
13885 fn resolve_completions(
13886 &self,
13887 buffer: Model<Buffer>,
13888 completion_indices: Vec<usize>,
13889 completions: Arc<RwLock<Box<[Completion]>>>,
13890 cx: &mut ViewContext<Editor>,
13891 ) -> Task<Result<bool>> {
13892 self.update(cx, |project, cx| {
13893 project.resolve_completions(buffer, completion_indices, completions, cx)
13894 })
13895 }
13896
13897 fn apply_additional_edits_for_completion(
13898 &self,
13899 buffer: Model<Buffer>,
13900 completion: Completion,
13901 push_to_history: bool,
13902 cx: &mut ViewContext<Editor>,
13903 ) -> Task<Result<Option<language::Transaction>>> {
13904 self.update(cx, |project, cx| {
13905 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13906 })
13907 }
13908
13909 fn is_completion_trigger(
13910 &self,
13911 buffer: &Model<Buffer>,
13912 position: language::Anchor,
13913 text: &str,
13914 trigger_in_words: bool,
13915 cx: &mut ViewContext<Editor>,
13916 ) -> bool {
13917 if !EditorSettings::get_global(cx).show_completions_on_input {
13918 return false;
13919 }
13920
13921 let mut chars = text.chars();
13922 let char = if let Some(char) = chars.next() {
13923 char
13924 } else {
13925 return false;
13926 };
13927 if chars.next().is_some() {
13928 return false;
13929 }
13930
13931 let buffer = buffer.read(cx);
13932 let classifier = buffer
13933 .snapshot()
13934 .char_classifier_at(position)
13935 .for_completion(true);
13936 if trigger_in_words && classifier.is_word(char) {
13937 return true;
13938 }
13939
13940 buffer.completion_triggers().contains(text)
13941 }
13942}
13943
13944impl SemanticsProvider for Model<Project> {
13945 fn hover(
13946 &self,
13947 buffer: &Model<Buffer>,
13948 position: text::Anchor,
13949 cx: &mut AppContext,
13950 ) -> Option<Task<Vec<project::Hover>>> {
13951 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13952 }
13953
13954 fn document_highlights(
13955 &self,
13956 buffer: &Model<Buffer>,
13957 position: text::Anchor,
13958 cx: &mut AppContext,
13959 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13960 Some(self.update(cx, |project, cx| {
13961 project.document_highlights(buffer, position, cx)
13962 }))
13963 }
13964
13965 fn definitions(
13966 &self,
13967 buffer: &Model<Buffer>,
13968 position: text::Anchor,
13969 kind: GotoDefinitionKind,
13970 cx: &mut AppContext,
13971 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13972 Some(self.update(cx, |project, cx| match kind {
13973 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13974 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13975 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13976 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13977 }))
13978 }
13979
13980 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13981 // TODO: make this work for remote projects
13982 self.read(cx)
13983 .language_servers_for_buffer(buffer.read(cx), cx)
13984 .any(
13985 |(_, server)| match server.capabilities().inlay_hint_provider {
13986 Some(lsp::OneOf::Left(enabled)) => enabled,
13987 Some(lsp::OneOf::Right(_)) => true,
13988 None => false,
13989 },
13990 )
13991 }
13992
13993 fn inlay_hints(
13994 &self,
13995 buffer_handle: Model<Buffer>,
13996 range: Range<text::Anchor>,
13997 cx: &mut AppContext,
13998 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13999 Some(self.update(cx, |project, cx| {
14000 project.inlay_hints(buffer_handle, range, cx)
14001 }))
14002 }
14003
14004 fn resolve_inlay_hint(
14005 &self,
14006 hint: InlayHint,
14007 buffer_handle: Model<Buffer>,
14008 server_id: LanguageServerId,
14009 cx: &mut AppContext,
14010 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14011 Some(self.update(cx, |project, cx| {
14012 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14013 }))
14014 }
14015
14016 fn range_for_rename(
14017 &self,
14018 buffer: &Model<Buffer>,
14019 position: text::Anchor,
14020 cx: &mut AppContext,
14021 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14022 Some(self.update(cx, |project, cx| {
14023 project.prepare_rename(buffer.clone(), position, cx)
14024 }))
14025 }
14026
14027 fn perform_rename(
14028 &self,
14029 buffer: &Model<Buffer>,
14030 position: text::Anchor,
14031 new_name: String,
14032 cx: &mut AppContext,
14033 ) -> Option<Task<Result<ProjectTransaction>>> {
14034 Some(self.update(cx, |project, cx| {
14035 project.perform_rename(buffer.clone(), position, new_name, cx)
14036 }))
14037 }
14038}
14039
14040fn inlay_hint_settings(
14041 location: Anchor,
14042 snapshot: &MultiBufferSnapshot,
14043 cx: &mut ViewContext<'_, Editor>,
14044) -> InlayHintSettings {
14045 let file = snapshot.file_at(location);
14046 let language = snapshot.language_at(location).map(|l| l.name());
14047 language_settings(language, file, cx).inlay_hints
14048}
14049
14050fn consume_contiguous_rows(
14051 contiguous_row_selections: &mut Vec<Selection<Point>>,
14052 selection: &Selection<Point>,
14053 display_map: &DisplaySnapshot,
14054 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14055) -> (MultiBufferRow, MultiBufferRow) {
14056 contiguous_row_selections.push(selection.clone());
14057 let start_row = MultiBufferRow(selection.start.row);
14058 let mut end_row = ending_row(selection, display_map);
14059
14060 while let Some(next_selection) = selections.peek() {
14061 if next_selection.start.row <= end_row.0 {
14062 end_row = ending_row(next_selection, display_map);
14063 contiguous_row_selections.push(selections.next().unwrap().clone());
14064 } else {
14065 break;
14066 }
14067 }
14068 (start_row, end_row)
14069}
14070
14071fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14072 if next_selection.end.column > 0 || next_selection.is_empty() {
14073 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14074 } else {
14075 MultiBufferRow(next_selection.end.row)
14076 }
14077}
14078
14079impl EditorSnapshot {
14080 pub fn remote_selections_in_range<'a>(
14081 &'a self,
14082 range: &'a Range<Anchor>,
14083 collaboration_hub: &dyn CollaborationHub,
14084 cx: &'a AppContext,
14085 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14086 let participant_names = collaboration_hub.user_names(cx);
14087 let participant_indices = collaboration_hub.user_participant_indices(cx);
14088 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14089 let collaborators_by_replica_id = collaborators_by_peer_id
14090 .iter()
14091 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14092 .collect::<HashMap<_, _>>();
14093 self.buffer_snapshot
14094 .selections_in_range(range, false)
14095 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14096 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14097 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14098 let user_name = participant_names.get(&collaborator.user_id).cloned();
14099 Some(RemoteSelection {
14100 replica_id,
14101 selection,
14102 cursor_shape,
14103 line_mode,
14104 participant_index,
14105 peer_id: collaborator.peer_id,
14106 user_name,
14107 })
14108 })
14109 }
14110
14111 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14112 self.display_snapshot.buffer_snapshot.language_at(position)
14113 }
14114
14115 pub fn is_focused(&self) -> bool {
14116 self.is_focused
14117 }
14118
14119 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14120 self.placeholder_text.as_ref()
14121 }
14122
14123 pub fn scroll_position(&self) -> gpui::Point<f32> {
14124 self.scroll_anchor.scroll_position(&self.display_snapshot)
14125 }
14126
14127 fn gutter_dimensions(
14128 &self,
14129 font_id: FontId,
14130 font_size: Pixels,
14131 em_width: Pixels,
14132 em_advance: Pixels,
14133 max_line_number_width: Pixels,
14134 cx: &AppContext,
14135 ) -> GutterDimensions {
14136 if !self.show_gutter {
14137 return GutterDimensions::default();
14138 }
14139 let descent = cx.text_system().descent(font_id, font_size);
14140
14141 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14142 matches!(
14143 ProjectSettings::get_global(cx).git.git_gutter,
14144 Some(GitGutterSetting::TrackedFiles)
14145 )
14146 });
14147 let gutter_settings = EditorSettings::get_global(cx).gutter;
14148 let show_line_numbers = self
14149 .show_line_numbers
14150 .unwrap_or(gutter_settings.line_numbers);
14151 let line_gutter_width = if show_line_numbers {
14152 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14153 let min_width_for_number_on_gutter = em_advance * 4.0;
14154 max_line_number_width.max(min_width_for_number_on_gutter)
14155 } else {
14156 0.0.into()
14157 };
14158
14159 let show_code_actions = self
14160 .show_code_actions
14161 .unwrap_or(gutter_settings.code_actions);
14162
14163 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14164
14165 let git_blame_entries_width =
14166 self.git_blame_gutter_max_author_length
14167 .map(|max_author_length| {
14168 // Length of the author name, but also space for the commit hash,
14169 // the spacing and the timestamp.
14170 let max_char_count = max_author_length
14171 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14172 + 7 // length of commit sha
14173 + 14 // length of max relative timestamp ("60 minutes ago")
14174 + 4; // gaps and margins
14175
14176 em_advance * max_char_count
14177 });
14178
14179 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14180 left_padding += if show_code_actions || show_runnables {
14181 em_width * 3.0
14182 } else if show_git_gutter && show_line_numbers {
14183 em_width * 2.0
14184 } else if show_git_gutter || show_line_numbers {
14185 em_width
14186 } else {
14187 px(0.)
14188 };
14189
14190 let right_padding = if gutter_settings.folds && show_line_numbers {
14191 em_width * 4.0
14192 } else if gutter_settings.folds {
14193 em_width * 3.0
14194 } else if show_line_numbers {
14195 em_width
14196 } else {
14197 px(0.)
14198 };
14199
14200 GutterDimensions {
14201 left_padding,
14202 right_padding,
14203 width: line_gutter_width + left_padding + right_padding,
14204 margin: -descent,
14205 git_blame_entries_width,
14206 }
14207 }
14208
14209 pub fn render_crease_toggle(
14210 &self,
14211 buffer_row: MultiBufferRow,
14212 row_contains_cursor: bool,
14213 editor: View<Editor>,
14214 cx: &mut WindowContext,
14215 ) -> Option<AnyElement> {
14216 let folded = self.is_line_folded(buffer_row);
14217 let mut is_foldable = false;
14218
14219 if let Some(crease) = self
14220 .crease_snapshot
14221 .query_row(buffer_row, &self.buffer_snapshot)
14222 {
14223 is_foldable = true;
14224 match crease {
14225 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14226 if let Some(render_toggle) = render_toggle {
14227 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14228 if folded {
14229 editor.update(cx, |editor, cx| {
14230 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14231 });
14232 } else {
14233 editor.update(cx, |editor, cx| {
14234 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14235 });
14236 }
14237 });
14238 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14239 }
14240 }
14241 }
14242 }
14243
14244 is_foldable |= self.starts_indent(buffer_row);
14245
14246 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14247 Some(
14248 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14249 .selected(folded)
14250 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14251 if folded {
14252 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14253 } else {
14254 this.fold_at(&FoldAt { buffer_row }, cx);
14255 }
14256 }))
14257 .into_any_element(),
14258 )
14259 } else {
14260 None
14261 }
14262 }
14263
14264 pub fn render_crease_trailer(
14265 &self,
14266 buffer_row: MultiBufferRow,
14267 cx: &mut WindowContext,
14268 ) -> Option<AnyElement> {
14269 let folded = self.is_line_folded(buffer_row);
14270 if let Crease::Inline { render_trailer, .. } = self
14271 .crease_snapshot
14272 .query_row(buffer_row, &self.buffer_snapshot)?
14273 {
14274 let render_trailer = render_trailer.as_ref()?;
14275 Some(render_trailer(buffer_row, folded, cx))
14276 } else {
14277 None
14278 }
14279 }
14280}
14281
14282impl Deref for EditorSnapshot {
14283 type Target = DisplaySnapshot;
14284
14285 fn deref(&self) -> &Self::Target {
14286 &self.display_snapshot
14287 }
14288}
14289
14290#[derive(Clone, Debug, PartialEq, Eq)]
14291pub enum EditorEvent {
14292 InputIgnored {
14293 text: Arc<str>,
14294 },
14295 InputHandled {
14296 utf16_range_to_replace: Option<Range<isize>>,
14297 text: Arc<str>,
14298 },
14299 ExcerptsAdded {
14300 buffer: Model<Buffer>,
14301 predecessor: ExcerptId,
14302 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14303 },
14304 ExcerptsRemoved {
14305 ids: Vec<ExcerptId>,
14306 },
14307 ExcerptsEdited {
14308 ids: Vec<ExcerptId>,
14309 },
14310 ExcerptsExpanded {
14311 ids: Vec<ExcerptId>,
14312 },
14313 BufferEdited,
14314 Edited {
14315 transaction_id: clock::Lamport,
14316 },
14317 Reparsed(BufferId),
14318 Focused,
14319 FocusedIn,
14320 Blurred,
14321 DirtyChanged,
14322 Saved,
14323 TitleChanged,
14324 DiffBaseChanged,
14325 SelectionsChanged {
14326 local: bool,
14327 },
14328 ScrollPositionChanged {
14329 local: bool,
14330 autoscroll: bool,
14331 },
14332 Closed,
14333 TransactionUndone {
14334 transaction_id: clock::Lamport,
14335 },
14336 TransactionBegun {
14337 transaction_id: clock::Lamport,
14338 },
14339 Reloaded,
14340 CursorShapeChanged,
14341}
14342
14343impl EventEmitter<EditorEvent> for Editor {}
14344
14345impl FocusableView for Editor {
14346 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14347 self.focus_handle.clone()
14348 }
14349}
14350
14351impl Render for Editor {
14352 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14353 let settings = ThemeSettings::get_global(cx);
14354
14355 let mut text_style = match self.mode {
14356 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14357 color: cx.theme().colors().editor_foreground,
14358 font_family: settings.ui_font.family.clone(),
14359 font_features: settings.ui_font.features.clone(),
14360 font_fallbacks: settings.ui_font.fallbacks.clone(),
14361 font_size: rems(0.875).into(),
14362 font_weight: settings.ui_font.weight,
14363 line_height: relative(settings.buffer_line_height.value()),
14364 ..Default::default()
14365 },
14366 EditorMode::Full => TextStyle {
14367 color: cx.theme().colors().editor_foreground,
14368 font_family: settings.buffer_font.family.clone(),
14369 font_features: settings.buffer_font.features.clone(),
14370 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14371 font_size: settings.buffer_font_size(cx).into(),
14372 font_weight: settings.buffer_font.weight,
14373 line_height: relative(settings.buffer_line_height.value()),
14374 ..Default::default()
14375 },
14376 };
14377 if let Some(text_style_refinement) = &self.text_style_refinement {
14378 text_style.refine(text_style_refinement)
14379 }
14380
14381 let background = match self.mode {
14382 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14383 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14384 EditorMode::Full => cx.theme().colors().editor_background,
14385 };
14386
14387 EditorElement::new(
14388 cx.view(),
14389 EditorStyle {
14390 background,
14391 local_player: cx.theme().players().local(),
14392 text: text_style,
14393 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14394 syntax: cx.theme().syntax().clone(),
14395 status: cx.theme().status().clone(),
14396 inlay_hints_style: make_inlay_hints_style(cx),
14397 suggestions_style: HighlightStyle {
14398 color: Some(cx.theme().status().predictive),
14399 ..HighlightStyle::default()
14400 },
14401 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14402 },
14403 )
14404 }
14405}
14406
14407impl ViewInputHandler for Editor {
14408 fn text_for_range(
14409 &mut self,
14410 range_utf16: Range<usize>,
14411 adjusted_range: &mut Option<Range<usize>>,
14412 cx: &mut ViewContext<Self>,
14413 ) -> Option<String> {
14414 let snapshot = self.buffer.read(cx).read(cx);
14415 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14416 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14417 if (start.0..end.0) != range_utf16 {
14418 adjusted_range.replace(start.0..end.0);
14419 }
14420 Some(snapshot.text_for_range(start..end).collect())
14421 }
14422
14423 fn selected_text_range(
14424 &mut self,
14425 ignore_disabled_input: bool,
14426 cx: &mut ViewContext<Self>,
14427 ) -> Option<UTF16Selection> {
14428 // Prevent the IME menu from appearing when holding down an alphabetic key
14429 // while input is disabled.
14430 if !ignore_disabled_input && !self.input_enabled {
14431 return None;
14432 }
14433
14434 let selection = self.selections.newest::<OffsetUtf16>(cx);
14435 let range = selection.range();
14436
14437 Some(UTF16Selection {
14438 range: range.start.0..range.end.0,
14439 reversed: selection.reversed,
14440 })
14441 }
14442
14443 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14444 let snapshot = self.buffer.read(cx).read(cx);
14445 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14446 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14447 }
14448
14449 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14450 self.clear_highlights::<InputComposition>(cx);
14451 self.ime_transaction.take();
14452 }
14453
14454 fn replace_text_in_range(
14455 &mut self,
14456 range_utf16: Option<Range<usize>>,
14457 text: &str,
14458 cx: &mut ViewContext<Self>,
14459 ) {
14460 if !self.input_enabled {
14461 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14462 return;
14463 }
14464
14465 self.transact(cx, |this, cx| {
14466 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14467 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14468 Some(this.selection_replacement_ranges(range_utf16, cx))
14469 } else {
14470 this.marked_text_ranges(cx)
14471 };
14472
14473 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14474 let newest_selection_id = this.selections.newest_anchor().id;
14475 this.selections
14476 .all::<OffsetUtf16>(cx)
14477 .iter()
14478 .zip(ranges_to_replace.iter())
14479 .find_map(|(selection, range)| {
14480 if selection.id == newest_selection_id {
14481 Some(
14482 (range.start.0 as isize - selection.head().0 as isize)
14483 ..(range.end.0 as isize - selection.head().0 as isize),
14484 )
14485 } else {
14486 None
14487 }
14488 })
14489 });
14490
14491 cx.emit(EditorEvent::InputHandled {
14492 utf16_range_to_replace: range_to_replace,
14493 text: text.into(),
14494 });
14495
14496 if let Some(new_selected_ranges) = new_selected_ranges {
14497 this.change_selections(None, cx, |selections| {
14498 selections.select_ranges(new_selected_ranges)
14499 });
14500 this.backspace(&Default::default(), cx);
14501 }
14502
14503 this.handle_input(text, cx);
14504 });
14505
14506 if let Some(transaction) = self.ime_transaction {
14507 self.buffer.update(cx, |buffer, cx| {
14508 buffer.group_until_transaction(transaction, cx);
14509 });
14510 }
14511
14512 self.unmark_text(cx);
14513 }
14514
14515 fn replace_and_mark_text_in_range(
14516 &mut self,
14517 range_utf16: Option<Range<usize>>,
14518 text: &str,
14519 new_selected_range_utf16: Option<Range<usize>>,
14520 cx: &mut ViewContext<Self>,
14521 ) {
14522 if !self.input_enabled {
14523 return;
14524 }
14525
14526 let transaction = self.transact(cx, |this, cx| {
14527 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14528 let snapshot = this.buffer.read(cx).read(cx);
14529 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14530 for marked_range in &mut marked_ranges {
14531 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14532 marked_range.start.0 += relative_range_utf16.start;
14533 marked_range.start =
14534 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14535 marked_range.end =
14536 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14537 }
14538 }
14539 Some(marked_ranges)
14540 } else if let Some(range_utf16) = range_utf16 {
14541 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14542 Some(this.selection_replacement_ranges(range_utf16, cx))
14543 } else {
14544 None
14545 };
14546
14547 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14548 let newest_selection_id = this.selections.newest_anchor().id;
14549 this.selections
14550 .all::<OffsetUtf16>(cx)
14551 .iter()
14552 .zip(ranges_to_replace.iter())
14553 .find_map(|(selection, range)| {
14554 if selection.id == newest_selection_id {
14555 Some(
14556 (range.start.0 as isize - selection.head().0 as isize)
14557 ..(range.end.0 as isize - selection.head().0 as isize),
14558 )
14559 } else {
14560 None
14561 }
14562 })
14563 });
14564
14565 cx.emit(EditorEvent::InputHandled {
14566 utf16_range_to_replace: range_to_replace,
14567 text: text.into(),
14568 });
14569
14570 if let Some(ranges) = ranges_to_replace {
14571 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14572 }
14573
14574 let marked_ranges = {
14575 let snapshot = this.buffer.read(cx).read(cx);
14576 this.selections
14577 .disjoint_anchors()
14578 .iter()
14579 .map(|selection| {
14580 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14581 })
14582 .collect::<Vec<_>>()
14583 };
14584
14585 if text.is_empty() {
14586 this.unmark_text(cx);
14587 } else {
14588 this.highlight_text::<InputComposition>(
14589 marked_ranges.clone(),
14590 HighlightStyle {
14591 underline: Some(UnderlineStyle {
14592 thickness: px(1.),
14593 color: None,
14594 wavy: false,
14595 }),
14596 ..Default::default()
14597 },
14598 cx,
14599 );
14600 }
14601
14602 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14603 let use_autoclose = this.use_autoclose;
14604 let use_auto_surround = this.use_auto_surround;
14605 this.set_use_autoclose(false);
14606 this.set_use_auto_surround(false);
14607 this.handle_input(text, cx);
14608 this.set_use_autoclose(use_autoclose);
14609 this.set_use_auto_surround(use_auto_surround);
14610
14611 if let Some(new_selected_range) = new_selected_range_utf16 {
14612 let snapshot = this.buffer.read(cx).read(cx);
14613 let new_selected_ranges = marked_ranges
14614 .into_iter()
14615 .map(|marked_range| {
14616 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14617 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14618 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14619 snapshot.clip_offset_utf16(new_start, Bias::Left)
14620 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14621 })
14622 .collect::<Vec<_>>();
14623
14624 drop(snapshot);
14625 this.change_selections(None, cx, |selections| {
14626 selections.select_ranges(new_selected_ranges)
14627 });
14628 }
14629 });
14630
14631 self.ime_transaction = self.ime_transaction.or(transaction);
14632 if let Some(transaction) = self.ime_transaction {
14633 self.buffer.update(cx, |buffer, cx| {
14634 buffer.group_until_transaction(transaction, cx);
14635 });
14636 }
14637
14638 if self.text_highlights::<InputComposition>(cx).is_none() {
14639 self.ime_transaction.take();
14640 }
14641 }
14642
14643 fn bounds_for_range(
14644 &mut self,
14645 range_utf16: Range<usize>,
14646 element_bounds: gpui::Bounds<Pixels>,
14647 cx: &mut ViewContext<Self>,
14648 ) -> Option<gpui::Bounds<Pixels>> {
14649 let text_layout_details = self.text_layout_details(cx);
14650 let style = &text_layout_details.editor_style;
14651 let font_id = cx.text_system().resolve_font(&style.text.font());
14652 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14653 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14654
14655 let em_width = cx
14656 .text_system()
14657 .typographic_bounds(font_id, font_size, 'm')
14658 .unwrap()
14659 .size
14660 .width;
14661
14662 let snapshot = self.snapshot(cx);
14663 let scroll_position = snapshot.scroll_position();
14664 let scroll_left = scroll_position.x * em_width;
14665
14666 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14667 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14668 + self.gutter_dimensions.width
14669 + self.gutter_dimensions.margin;
14670 let y = line_height * (start.row().as_f32() - scroll_position.y);
14671
14672 Some(Bounds {
14673 origin: element_bounds.origin + point(x, y),
14674 size: size(em_width, line_height),
14675 })
14676 }
14677}
14678
14679trait SelectionExt {
14680 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14681 fn spanned_rows(
14682 &self,
14683 include_end_if_at_line_start: bool,
14684 map: &DisplaySnapshot,
14685 ) -> Range<MultiBufferRow>;
14686}
14687
14688impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14689 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14690 let start = self
14691 .start
14692 .to_point(&map.buffer_snapshot)
14693 .to_display_point(map);
14694 let end = self
14695 .end
14696 .to_point(&map.buffer_snapshot)
14697 .to_display_point(map);
14698 if self.reversed {
14699 end..start
14700 } else {
14701 start..end
14702 }
14703 }
14704
14705 fn spanned_rows(
14706 &self,
14707 include_end_if_at_line_start: bool,
14708 map: &DisplaySnapshot,
14709 ) -> Range<MultiBufferRow> {
14710 let start = self.start.to_point(&map.buffer_snapshot);
14711 let mut end = self.end.to_point(&map.buffer_snapshot);
14712 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14713 end.row -= 1;
14714 }
14715
14716 let buffer_start = map.prev_line_boundary(start).0;
14717 let buffer_end = map.next_line_boundary(end).0;
14718 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14719 }
14720}
14721
14722impl<T: InvalidationRegion> InvalidationStack<T> {
14723 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14724 where
14725 S: Clone + ToOffset,
14726 {
14727 while let Some(region) = self.last() {
14728 let all_selections_inside_invalidation_ranges =
14729 if selections.len() == region.ranges().len() {
14730 selections
14731 .iter()
14732 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14733 .all(|(selection, invalidation_range)| {
14734 let head = selection.head().to_offset(buffer);
14735 invalidation_range.start <= head && invalidation_range.end >= head
14736 })
14737 } else {
14738 false
14739 };
14740
14741 if all_selections_inside_invalidation_ranges {
14742 break;
14743 } else {
14744 self.pop();
14745 }
14746 }
14747 }
14748}
14749
14750impl<T> Default for InvalidationStack<T> {
14751 fn default() -> Self {
14752 Self(Default::default())
14753 }
14754}
14755
14756impl<T> Deref for InvalidationStack<T> {
14757 type Target = Vec<T>;
14758
14759 fn deref(&self) -> &Self::Target {
14760 &self.0
14761 }
14762}
14763
14764impl<T> DerefMut for InvalidationStack<T> {
14765 fn deref_mut(&mut self) -> &mut Self::Target {
14766 &mut self.0
14767 }
14768}
14769
14770impl InvalidationRegion for SnippetState {
14771 fn ranges(&self) -> &[Range<Anchor>] {
14772 &self.ranges[self.active_index]
14773 }
14774}
14775
14776pub fn diagnostic_block_renderer(
14777 diagnostic: Diagnostic,
14778 max_message_rows: Option<u8>,
14779 allow_closing: bool,
14780 _is_valid: bool,
14781) -> RenderBlock {
14782 let (text_without_backticks, code_ranges) =
14783 highlight_diagnostic_message(&diagnostic, max_message_rows);
14784
14785 Arc::new(move |cx: &mut BlockContext| {
14786 let group_id: SharedString = cx.block_id.to_string().into();
14787
14788 let mut text_style = cx.text_style().clone();
14789 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14790 let theme_settings = ThemeSettings::get_global(cx);
14791 text_style.font_family = theme_settings.buffer_font.family.clone();
14792 text_style.font_style = theme_settings.buffer_font.style;
14793 text_style.font_features = theme_settings.buffer_font.features.clone();
14794 text_style.font_weight = theme_settings.buffer_font.weight;
14795
14796 let multi_line_diagnostic = diagnostic.message.contains('\n');
14797
14798 let buttons = |diagnostic: &Diagnostic| {
14799 if multi_line_diagnostic {
14800 v_flex()
14801 } else {
14802 h_flex()
14803 }
14804 .when(allow_closing, |div| {
14805 div.children(diagnostic.is_primary.then(|| {
14806 IconButton::new("close-block", IconName::XCircle)
14807 .icon_color(Color::Muted)
14808 .size(ButtonSize::Compact)
14809 .style(ButtonStyle::Transparent)
14810 .visible_on_hover(group_id.clone())
14811 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14812 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14813 }))
14814 })
14815 .child(
14816 IconButton::new("copy-block", IconName::Copy)
14817 .icon_color(Color::Muted)
14818 .size(ButtonSize::Compact)
14819 .style(ButtonStyle::Transparent)
14820 .visible_on_hover(group_id.clone())
14821 .on_click({
14822 let message = diagnostic.message.clone();
14823 move |_click, cx| {
14824 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14825 }
14826 })
14827 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14828 )
14829 };
14830
14831 let icon_size = buttons(&diagnostic)
14832 .into_any_element()
14833 .layout_as_root(AvailableSpace::min_size(), cx);
14834
14835 h_flex()
14836 .id(cx.block_id)
14837 .group(group_id.clone())
14838 .relative()
14839 .size_full()
14840 .block_mouse_down()
14841 .pl(cx.gutter_dimensions.width)
14842 .w(cx.max_width - cx.gutter_dimensions.full_width())
14843 .child(
14844 div()
14845 .flex()
14846 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14847 .flex_shrink(),
14848 )
14849 .child(buttons(&diagnostic))
14850 .child(div().flex().flex_shrink_0().child(
14851 StyledText::new(text_without_backticks.clone()).with_highlights(
14852 &text_style,
14853 code_ranges.iter().map(|range| {
14854 (
14855 range.clone(),
14856 HighlightStyle {
14857 font_weight: Some(FontWeight::BOLD),
14858 ..Default::default()
14859 },
14860 )
14861 }),
14862 ),
14863 ))
14864 .into_any_element()
14865 })
14866}
14867
14868pub fn highlight_diagnostic_message(
14869 diagnostic: &Diagnostic,
14870 mut max_message_rows: Option<u8>,
14871) -> (SharedString, Vec<Range<usize>>) {
14872 let mut text_without_backticks = String::new();
14873 let mut code_ranges = Vec::new();
14874
14875 if let Some(source) = &diagnostic.source {
14876 text_without_backticks.push_str(source);
14877 code_ranges.push(0..source.len());
14878 text_without_backticks.push_str(": ");
14879 }
14880
14881 let mut prev_offset = 0;
14882 let mut in_code_block = false;
14883 let has_row_limit = max_message_rows.is_some();
14884 let mut newline_indices = diagnostic
14885 .message
14886 .match_indices('\n')
14887 .filter(|_| has_row_limit)
14888 .map(|(ix, _)| ix)
14889 .fuse()
14890 .peekable();
14891
14892 for (quote_ix, _) in diagnostic
14893 .message
14894 .match_indices('`')
14895 .chain([(diagnostic.message.len(), "")])
14896 {
14897 let mut first_newline_ix = None;
14898 let mut last_newline_ix = None;
14899 while let Some(newline_ix) = newline_indices.peek() {
14900 if *newline_ix < quote_ix {
14901 if first_newline_ix.is_none() {
14902 first_newline_ix = Some(*newline_ix);
14903 }
14904 last_newline_ix = Some(*newline_ix);
14905
14906 if let Some(rows_left) = &mut max_message_rows {
14907 if *rows_left == 0 {
14908 break;
14909 } else {
14910 *rows_left -= 1;
14911 }
14912 }
14913 let _ = newline_indices.next();
14914 } else {
14915 break;
14916 }
14917 }
14918 let prev_len = text_without_backticks.len();
14919 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14920 text_without_backticks.push_str(new_text);
14921 if in_code_block {
14922 code_ranges.push(prev_len..text_without_backticks.len());
14923 }
14924 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14925 in_code_block = !in_code_block;
14926 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14927 text_without_backticks.push_str("...");
14928 break;
14929 }
14930 }
14931
14932 (text_without_backticks.into(), code_ranges)
14933}
14934
14935fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14936 match severity {
14937 DiagnosticSeverity::ERROR => colors.error,
14938 DiagnosticSeverity::WARNING => colors.warning,
14939 DiagnosticSeverity::INFORMATION => colors.info,
14940 DiagnosticSeverity::HINT => colors.info,
14941 _ => colors.ignored,
14942 }
14943}
14944
14945pub fn styled_runs_for_code_label<'a>(
14946 label: &'a CodeLabel,
14947 syntax_theme: &'a theme::SyntaxTheme,
14948) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14949 let fade_out = HighlightStyle {
14950 fade_out: Some(0.35),
14951 ..Default::default()
14952 };
14953
14954 let mut prev_end = label.filter_range.end;
14955 label
14956 .runs
14957 .iter()
14958 .enumerate()
14959 .flat_map(move |(ix, (range, highlight_id))| {
14960 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14961 style
14962 } else {
14963 return Default::default();
14964 };
14965 let mut muted_style = style;
14966 muted_style.highlight(fade_out);
14967
14968 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14969 if range.start >= label.filter_range.end {
14970 if range.start > prev_end {
14971 runs.push((prev_end..range.start, fade_out));
14972 }
14973 runs.push((range.clone(), muted_style));
14974 } else if range.end <= label.filter_range.end {
14975 runs.push((range.clone(), style));
14976 } else {
14977 runs.push((range.start..label.filter_range.end, style));
14978 runs.push((label.filter_range.end..range.end, muted_style));
14979 }
14980 prev_end = cmp::max(prev_end, range.end);
14981
14982 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14983 runs.push((prev_end..label.text.len(), fade_out));
14984 }
14985
14986 runs
14987 })
14988}
14989
14990pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14991 let mut prev_index = 0;
14992 let mut prev_codepoint: Option<char> = None;
14993 text.char_indices()
14994 .chain([(text.len(), '\0')])
14995 .filter_map(move |(index, codepoint)| {
14996 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14997 let is_boundary = index == text.len()
14998 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14999 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15000 if is_boundary {
15001 let chunk = &text[prev_index..index];
15002 prev_index = index;
15003 Some(chunk)
15004 } else {
15005 None
15006 }
15007 })
15008}
15009
15010pub trait RangeToAnchorExt: Sized {
15011 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15012
15013 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15014 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15015 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15016 }
15017}
15018
15019impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15020 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15021 let start_offset = self.start.to_offset(snapshot);
15022 let end_offset = self.end.to_offset(snapshot);
15023 if start_offset == end_offset {
15024 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15025 } else {
15026 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15027 }
15028 }
15029}
15030
15031pub trait RowExt {
15032 fn as_f32(&self) -> f32;
15033
15034 fn next_row(&self) -> Self;
15035
15036 fn previous_row(&self) -> Self;
15037
15038 fn minus(&self, other: Self) -> u32;
15039}
15040
15041impl RowExt for DisplayRow {
15042 fn as_f32(&self) -> f32 {
15043 self.0 as f32
15044 }
15045
15046 fn next_row(&self) -> Self {
15047 Self(self.0 + 1)
15048 }
15049
15050 fn previous_row(&self) -> Self {
15051 Self(self.0.saturating_sub(1))
15052 }
15053
15054 fn minus(&self, other: Self) -> u32 {
15055 self.0 - other.0
15056 }
15057}
15058
15059impl RowExt for MultiBufferRow {
15060 fn as_f32(&self) -> f32 {
15061 self.0 as f32
15062 }
15063
15064 fn next_row(&self) -> Self {
15065 Self(self.0 + 1)
15066 }
15067
15068 fn previous_row(&self) -> Self {
15069 Self(self.0.saturating_sub(1))
15070 }
15071
15072 fn minus(&self, other: Self) -> u32 {
15073 self.0 - other.0
15074 }
15075}
15076
15077trait RowRangeExt {
15078 type Row;
15079
15080 fn len(&self) -> usize;
15081
15082 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15083}
15084
15085impl RowRangeExt for Range<MultiBufferRow> {
15086 type Row = MultiBufferRow;
15087
15088 fn len(&self) -> usize {
15089 (self.end.0 - self.start.0) as usize
15090 }
15091
15092 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15093 (self.start.0..self.end.0).map(MultiBufferRow)
15094 }
15095}
15096
15097impl RowRangeExt for Range<DisplayRow> {
15098 type Row = DisplayRow;
15099
15100 fn len(&self) -> usize {
15101 (self.end.0 - self.start.0) as usize
15102 }
15103
15104 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15105 (self.start.0..self.end.0).map(DisplayRow)
15106 }
15107}
15108
15109fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15110 if hunk.diff_base_byte_range.is_empty() {
15111 DiffHunkStatus::Added
15112 } else if hunk.row_range.is_empty() {
15113 DiffHunkStatus::Removed
15114 } else {
15115 DiffHunkStatus::Modified
15116 }
15117}
15118
15119/// If select range has more than one line, we
15120/// just point the cursor to range.start.
15121fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15122 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15123 range
15124 } else {
15125 range.start..range.start
15126 }
15127}
15128
15129pub struct KillRing(ClipboardItem);
15130impl Global for KillRing {}
15131
15132const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);