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, Item, Location,
129 LocationLink, Project, 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 completion_documentation_pre_resolve_debounce: DebouncedDelay,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 expanded_hunks: ExpandedHunks,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 is_focused: bool,
696 scroll_anchor: ScrollAnchor,
697 ongoing_scroll: OngoingScroll,
698 current_line_highlight: CurrentLineHighlight,
699 gutter_hovered: bool,
700}
701
702const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
703
704#[derive(Default, Debug, Clone, Copy)]
705pub struct GutterDimensions {
706 pub left_padding: Pixels,
707 pub right_padding: Pixels,
708 pub width: Pixels,
709 pub margin: Pixels,
710 pub git_blame_entries_width: Option<Pixels>,
711}
712
713impl GutterDimensions {
714 /// The full width of the space taken up by the gutter.
715 pub fn full_width(&self) -> Pixels {
716 self.margin + self.width
717 }
718
719 /// The width of the space reserved for the fold indicators,
720 /// use alongside 'justify_end' and `gutter_width` to
721 /// right align content with the line numbers
722 pub fn fold_area_width(&self) -> Pixels {
723 self.margin + self.right_padding
724 }
725}
726
727#[derive(Debug)]
728pub struct RemoteSelection {
729 pub replica_id: ReplicaId,
730 pub selection: Selection<Anchor>,
731 pub cursor_shape: CursorShape,
732 pub peer_id: PeerId,
733 pub line_mode: bool,
734 pub participant_index: Option<ParticipantIndex>,
735 pub user_name: Option<SharedString>,
736}
737
738#[derive(Clone, Debug)]
739struct SelectionHistoryEntry {
740 selections: Arc<[Selection<Anchor>]>,
741 select_next_state: Option<SelectNextState>,
742 select_prev_state: Option<SelectNextState>,
743 add_selections_state: Option<AddSelectionsState>,
744}
745
746enum SelectionHistoryMode {
747 Normal,
748 Undoing,
749 Redoing,
750}
751
752#[derive(Clone, PartialEq, Eq, Hash)]
753struct HoveredCursor {
754 replica_id: u16,
755 selection_id: usize,
756}
757
758impl Default for SelectionHistoryMode {
759 fn default() -> Self {
760 Self::Normal
761 }
762}
763
764#[derive(Default)]
765struct SelectionHistory {
766 #[allow(clippy::type_complexity)]
767 selections_by_transaction:
768 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
769 mode: SelectionHistoryMode,
770 undo_stack: VecDeque<SelectionHistoryEntry>,
771 redo_stack: VecDeque<SelectionHistoryEntry>,
772}
773
774impl SelectionHistory {
775 fn insert_transaction(
776 &mut self,
777 transaction_id: TransactionId,
778 selections: Arc<[Selection<Anchor>]>,
779 ) {
780 self.selections_by_transaction
781 .insert(transaction_id, (selections, None));
782 }
783
784 #[allow(clippy::type_complexity)]
785 fn transaction(
786 &self,
787 transaction_id: TransactionId,
788 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
789 self.selections_by_transaction.get(&transaction_id)
790 }
791
792 #[allow(clippy::type_complexity)]
793 fn transaction_mut(
794 &mut self,
795 transaction_id: TransactionId,
796 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
797 self.selections_by_transaction.get_mut(&transaction_id)
798 }
799
800 fn push(&mut self, entry: SelectionHistoryEntry) {
801 if !entry.selections.is_empty() {
802 match self.mode {
803 SelectionHistoryMode::Normal => {
804 self.push_undo(entry);
805 self.redo_stack.clear();
806 }
807 SelectionHistoryMode::Undoing => self.push_redo(entry),
808 SelectionHistoryMode::Redoing => self.push_undo(entry),
809 }
810 }
811 }
812
813 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
814 if self
815 .undo_stack
816 .back()
817 .map_or(true, |e| e.selections != entry.selections)
818 {
819 self.undo_stack.push_back(entry);
820 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
821 self.undo_stack.pop_front();
822 }
823 }
824 }
825
826 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
827 if self
828 .redo_stack
829 .back()
830 .map_or(true, |e| e.selections != entry.selections)
831 {
832 self.redo_stack.push_back(entry);
833 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
834 self.redo_stack.pop_front();
835 }
836 }
837 }
838}
839
840struct RowHighlight {
841 index: usize,
842 range: Range<Anchor>,
843 color: Hsla,
844 should_autoscroll: bool,
845}
846
847#[derive(Clone, Debug)]
848struct AddSelectionsState {
849 above: bool,
850 stack: Vec<usize>,
851}
852
853#[derive(Clone)]
854struct SelectNextState {
855 query: AhoCorasick,
856 wordwise: bool,
857 done: bool,
858}
859
860impl std::fmt::Debug for SelectNextState {
861 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
862 f.debug_struct(std::any::type_name::<Self>())
863 .field("wordwise", &self.wordwise)
864 .field("done", &self.done)
865 .finish()
866 }
867}
868
869#[derive(Debug)]
870struct AutocloseRegion {
871 selection_id: usize,
872 range: Range<Anchor>,
873 pair: BracketPair,
874}
875
876#[derive(Debug)]
877struct SnippetState {
878 ranges: Vec<Vec<Range<Anchor>>>,
879 active_index: usize,
880 choices: Vec<Option<Vec<String>>>,
881}
882
883#[doc(hidden)]
884pub struct RenameState {
885 pub range: Range<Anchor>,
886 pub old_name: Arc<str>,
887 pub editor: View<Editor>,
888 block_id: CustomBlockId,
889}
890
891struct InvalidationStack<T>(Vec<T>);
892
893struct RegisteredInlineCompletionProvider {
894 provider: Arc<dyn InlineCompletionProviderHandle>,
895 _subscription: Subscription,
896}
897
898enum ContextMenu {
899 Completions(CompletionsMenu),
900 CodeActions(CodeActionsMenu),
901}
902
903impl ContextMenu {
904 fn select_first(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_first(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_prev(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_next(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_next(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_last(
953 &mut self,
954 provider: Option<&dyn CompletionProvider>,
955 cx: &mut ViewContext<Editor>,
956 ) -> bool {
957 if self.visible() {
958 match self {
959 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_last(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn visible(&self) -> bool {
969 match self {
970 ContextMenu::Completions(menu) => menu.visible(),
971 ContextMenu::CodeActions(menu) => menu.visible(),
972 }
973 }
974
975 fn render(
976 &self,
977 cursor_position: DisplayPoint,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> (ContextMenuOrigin, AnyElement) {
983 match self {
984 ContextMenu::Completions(menu) => (
985 ContextMenuOrigin::EditorPoint(cursor_position),
986 menu.render(style, max_height, workspace, cx),
987 ),
988 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
989 }
990 }
991}
992
993enum ContextMenuOrigin {
994 EditorPoint(DisplayPoint),
995 GutterIndicator(DisplayRow),
996}
997
998#[derive(Clone, Debug)]
999struct CompletionsMenu {
1000 id: CompletionId,
1001 sort_completions: bool,
1002 initial_position: Anchor,
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 match_candidates: Arc<[StringMatchCandidate]>,
1006 matches: Arc<[StringMatch]>,
1007 selected_item: usize,
1008 scroll_handle: UniformListScrollHandle,
1009 selected_completion_documentation_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1010}
1011
1012impl CompletionsMenu {
1013 fn new(
1014 id: CompletionId,
1015 sort_completions: bool,
1016 initial_position: Anchor,
1017 buffer: Model<Buffer>,
1018 completions: Box<[Completion]>,
1019 ) -> Self {
1020 let match_candidates = completions
1021 .iter()
1022 .enumerate()
1023 .map(|(id, completion)| {
1024 StringMatchCandidate::new(
1025 id,
1026 completion.label.text[completion.label.filter_range.clone()].into(),
1027 )
1028 })
1029 .collect();
1030
1031 Self {
1032 id,
1033 sort_completions,
1034 initial_position,
1035 buffer,
1036 completions: Arc::new(RwLock::new(completions)),
1037 match_candidates,
1038 matches: Vec::new().into(),
1039 selected_item: 0,
1040 scroll_handle: UniformListScrollHandle::new(),
1041 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1042 DebouncedDelay::new(),
1043 ))),
1044 }
1045 }
1046
1047 fn new_snippet_choices(
1048 id: CompletionId,
1049 sort_completions: bool,
1050 choices: &Vec<String>,
1051 selection: Range<Anchor>,
1052 buffer: Model<Buffer>,
1053 ) -> Self {
1054 let completions = choices
1055 .iter()
1056 .map(|choice| Completion {
1057 old_range: selection.start.text_anchor..selection.end.text_anchor,
1058 new_text: choice.to_string(),
1059 label: CodeLabel {
1060 text: choice.to_string(),
1061 runs: Default::default(),
1062 filter_range: Default::default(),
1063 },
1064 server_id: LanguageServerId(usize::MAX),
1065 documentation: None,
1066 lsp_completion: Default::default(),
1067 confirm: None,
1068 })
1069 .collect();
1070
1071 let match_candidates = choices
1072 .iter()
1073 .enumerate()
1074 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1075 .collect();
1076 let matches = choices
1077 .iter()
1078 .enumerate()
1079 .map(|(id, completion)| StringMatch {
1080 candidate_id: id,
1081 score: 1.,
1082 positions: vec![],
1083 string: completion.clone(),
1084 })
1085 .collect();
1086 Self {
1087 id,
1088 sort_completions,
1089 initial_position: selection.start,
1090 buffer,
1091 completions: Arc::new(RwLock::new(completions)),
1092 match_candidates,
1093 matches,
1094 selected_item: 0,
1095 scroll_handle: UniformListScrollHandle::new(),
1096 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1097 DebouncedDelay::new(),
1098 ))),
1099 }
1100 }
1101
1102 fn suppress_documentation_resolution(mut self) -> Self {
1103 self.selected_completion_documentation_resolve_debounce
1104 .take();
1105 self
1106 }
1107
1108 fn select_first(
1109 &mut self,
1110 provider: Option<&dyn CompletionProvider>,
1111 cx: &mut ViewContext<Editor>,
1112 ) {
1113 self.selected_item = 0;
1114 self.scroll_handle
1115 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1116 self.attempt_resolve_selected_completion_documentation(provider, cx);
1117 cx.notify();
1118 }
1119
1120 fn select_prev(
1121 &mut self,
1122 provider: Option<&dyn CompletionProvider>,
1123 cx: &mut ViewContext<Editor>,
1124 ) {
1125 if self.selected_item > 0 {
1126 self.selected_item -= 1;
1127 } else {
1128 self.selected_item = self.matches.len() - 1;
1129 }
1130 self.scroll_handle
1131 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1132 self.attempt_resolve_selected_completion_documentation(provider, cx);
1133 cx.notify();
1134 }
1135
1136 fn select_next(
1137 &mut self,
1138 provider: Option<&dyn CompletionProvider>,
1139 cx: &mut ViewContext<Editor>,
1140 ) {
1141 if self.selected_item + 1 < self.matches.len() {
1142 self.selected_item += 1;
1143 } else {
1144 self.selected_item = 0;
1145 }
1146 self.scroll_handle
1147 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1148 self.attempt_resolve_selected_completion_documentation(provider, cx);
1149 cx.notify();
1150 }
1151
1152 fn select_last(
1153 &mut self,
1154 provider: Option<&dyn CompletionProvider>,
1155 cx: &mut ViewContext<Editor>,
1156 ) {
1157 self.selected_item = self.matches.len() - 1;
1158 self.scroll_handle
1159 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1160 self.attempt_resolve_selected_completion_documentation(provider, cx);
1161 cx.notify();
1162 }
1163
1164 fn pre_resolve_completion_documentation(
1165 buffer: Model<Buffer>,
1166 completions: Arc<RwLock<Box<[Completion]>>>,
1167 matches: Arc<[StringMatch]>,
1168 editor: &Editor,
1169 cx: &mut ViewContext<Editor>,
1170 ) -> Task<()> {
1171 let settings = EditorSettings::get_global(cx);
1172 if !settings.show_completion_documentation {
1173 return Task::ready(());
1174 }
1175
1176 let Some(provider) = editor.completion_provider.as_ref() else {
1177 return Task::ready(());
1178 };
1179
1180 let resolve_task = provider.resolve_completions(
1181 buffer,
1182 matches.iter().map(|m| m.candidate_id).collect(),
1183 completions.clone(),
1184 cx,
1185 );
1186
1187 cx.spawn(move |this, mut cx| async move {
1188 if let Some(true) = resolve_task.await.log_err() {
1189 this.update(&mut cx, |_, cx| cx.notify()).ok();
1190 }
1191 })
1192 }
1193
1194 fn attempt_resolve_selected_completion_documentation(
1195 &mut self,
1196 provider: Option<&dyn CompletionProvider>,
1197 cx: &mut ViewContext<Editor>,
1198 ) {
1199 let settings = EditorSettings::get_global(cx);
1200 if !settings.show_completion_documentation {
1201 return;
1202 }
1203
1204 let completion_index = self.matches[self.selected_item].candidate_id;
1205 let Some(provider) = provider else {
1206 return;
1207 };
1208 let Some(documentation_resolve) = self
1209 .selected_completion_documentation_resolve_debounce
1210 .as_ref()
1211 else {
1212 return;
1213 };
1214
1215 let resolve_task = provider.resolve_completions(
1216 self.buffer.clone(),
1217 vec![completion_index],
1218 self.completions.clone(),
1219 cx,
1220 );
1221
1222 let delay_ms =
1223 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1224 let delay = Duration::from_millis(delay_ms);
1225
1226 documentation_resolve.lock().fire_new(delay, cx, |_, cx| {
1227 cx.spawn(move |this, mut cx| async move {
1228 if let Some(true) = resolve_task.await.log_err() {
1229 this.update(&mut cx, |_, cx| cx.notify()).ok();
1230 }
1231 })
1232 });
1233 }
1234
1235 fn visible(&self) -> bool {
1236 !self.matches.is_empty()
1237 }
1238
1239 fn render(
1240 &self,
1241 style: &EditorStyle,
1242 max_height: Pixels,
1243 workspace: Option<WeakView<Workspace>>,
1244 cx: &mut ViewContext<Editor>,
1245 ) -> AnyElement {
1246 let settings = EditorSettings::get_global(cx);
1247 let show_completion_documentation = settings.show_completion_documentation;
1248
1249 let widest_completion_ix = self
1250 .matches
1251 .iter()
1252 .enumerate()
1253 .max_by_key(|(_, mat)| {
1254 let completions = self.completions.read();
1255 let completion = &completions[mat.candidate_id];
1256 let documentation = &completion.documentation;
1257
1258 let mut len = completion.label.text.chars().count();
1259 if let Some(Documentation::SingleLine(text)) = documentation {
1260 if show_completion_documentation {
1261 len += text.chars().count();
1262 }
1263 }
1264
1265 len
1266 })
1267 .map(|(ix, _)| ix);
1268
1269 let completions = self.completions.clone();
1270 let matches = self.matches.clone();
1271 let selected_item = self.selected_item;
1272 let style = style.clone();
1273
1274 let multiline_docs = if show_completion_documentation {
1275 let mat = &self.matches[selected_item];
1276 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1277 Some(Documentation::MultiLinePlainText(text)) => {
1278 Some(div().child(SharedString::from(text.clone())))
1279 }
1280 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1281 Some(div().child(render_parsed_markdown(
1282 "completions_markdown",
1283 parsed,
1284 &style,
1285 workspace,
1286 cx,
1287 )))
1288 }
1289 _ => None,
1290 };
1291 multiline_docs.map(|div| {
1292 div.id("multiline_docs")
1293 .max_h(max_height)
1294 .flex_1()
1295 .px_1p5()
1296 .py_1()
1297 .min_w(px(260.))
1298 .max_w(px(640.))
1299 .w(px(500.))
1300 .overflow_y_scroll()
1301 .occlude()
1302 })
1303 } else {
1304 None
1305 };
1306
1307 let list = uniform_list(
1308 cx.view().clone(),
1309 "completions",
1310 matches.len(),
1311 move |_editor, range, cx| {
1312 let start_ix = range.start;
1313 let completions_guard = completions.read();
1314
1315 matches[range]
1316 .iter()
1317 .enumerate()
1318 .map(|(ix, mat)| {
1319 let item_ix = start_ix + ix;
1320 let candidate_id = mat.candidate_id;
1321 let completion = &completions_guard[candidate_id];
1322
1323 let documentation = if show_completion_documentation {
1324 &completion.documentation
1325 } else {
1326 &None
1327 };
1328
1329 let highlights = gpui::combine_highlights(
1330 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1331 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1332 |(range, mut highlight)| {
1333 // Ignore font weight for syntax highlighting, as we'll use it
1334 // for fuzzy matches.
1335 highlight.font_weight = None;
1336
1337 if completion.lsp_completion.deprecated.unwrap_or(false) {
1338 highlight.strikethrough = Some(StrikethroughStyle {
1339 thickness: 1.0.into(),
1340 ..Default::default()
1341 });
1342 highlight.color = Some(cx.theme().colors().text_muted);
1343 }
1344
1345 (range, highlight)
1346 },
1347 ),
1348 );
1349 let completion_label = StyledText::new(completion.label.text.clone())
1350 .with_highlights(&style.text, highlights);
1351 let documentation_label =
1352 if let Some(Documentation::SingleLine(text)) = documentation {
1353 if text.trim().is_empty() {
1354 None
1355 } else {
1356 Some(
1357 Label::new(text.clone())
1358 .ml_4()
1359 .size(LabelSize::Small)
1360 .color(Color::Muted),
1361 )
1362 }
1363 } else {
1364 None
1365 };
1366
1367 let color_swatch = completion
1368 .color()
1369 .map(|color| div().size_4().bg(color).rounded_sm());
1370
1371 div().min_w(px(220.)).max_w(px(540.)).child(
1372 ListItem::new(mat.candidate_id)
1373 .inset(true)
1374 .selected(item_ix == selected_item)
1375 .on_click(cx.listener(move |editor, _event, cx| {
1376 cx.stop_propagation();
1377 if let Some(task) = editor.confirm_completion(
1378 &ConfirmCompletion {
1379 item_ix: Some(item_ix),
1380 },
1381 cx,
1382 ) {
1383 task.detach_and_log_err(cx)
1384 }
1385 }))
1386 .start_slot::<Div>(color_swatch)
1387 .child(h_flex().overflow_hidden().child(completion_label))
1388 .end_slot::<Label>(documentation_label),
1389 )
1390 })
1391 .collect()
1392 },
1393 )
1394 .occlude()
1395 .max_h(max_height)
1396 .track_scroll(self.scroll_handle.clone())
1397 .with_width_from_item(widest_completion_ix)
1398 .with_sizing_behavior(ListSizingBehavior::Infer);
1399
1400 Popover::new()
1401 .child(list)
1402 .when_some(multiline_docs, |popover, multiline_docs| {
1403 popover.aside(multiline_docs)
1404 })
1405 .into_any_element()
1406 }
1407
1408 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1409 let mut matches = if let Some(query) = query {
1410 fuzzy::match_strings(
1411 &self.match_candidates,
1412 query,
1413 query.chars().any(|c| c.is_uppercase()),
1414 100,
1415 &Default::default(),
1416 executor,
1417 )
1418 .await
1419 } else {
1420 self.match_candidates
1421 .iter()
1422 .enumerate()
1423 .map(|(candidate_id, candidate)| StringMatch {
1424 candidate_id,
1425 score: Default::default(),
1426 positions: Default::default(),
1427 string: candidate.string.clone(),
1428 })
1429 .collect()
1430 };
1431
1432 // Remove all candidates where the query's start does not match the start of any word in the candidate
1433 if let Some(query) = query {
1434 if let Some(query_start) = query.chars().next() {
1435 matches.retain(|string_match| {
1436 split_words(&string_match.string).any(|word| {
1437 // Check that the first codepoint of the word as lowercase matches the first
1438 // codepoint of the query as lowercase
1439 word.chars()
1440 .flat_map(|codepoint| codepoint.to_lowercase())
1441 .zip(query_start.to_lowercase())
1442 .all(|(word_cp, query_cp)| word_cp == query_cp)
1443 })
1444 });
1445 }
1446 }
1447
1448 let completions = self.completions.read();
1449 if self.sort_completions {
1450 matches.sort_unstable_by_key(|mat| {
1451 // We do want to strike a balance here between what the language server tells us
1452 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1453 // `Creat` and there is a local variable called `CreateComponent`).
1454 // So what we do is: we bucket all matches into two buckets
1455 // - Strong matches
1456 // - Weak matches
1457 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1458 // and the Weak matches are the rest.
1459 //
1460 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1461 // matches, we prefer language-server sort_text first.
1462 //
1463 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1464 // Rest of the matches(weak) can be sorted as language-server expects.
1465
1466 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1467 enum MatchScore<'a> {
1468 Strong {
1469 score: Reverse<OrderedFloat<f64>>,
1470 sort_text: Option<&'a str>,
1471 sort_key: (usize, &'a str),
1472 },
1473 Weak {
1474 sort_text: Option<&'a str>,
1475 score: Reverse<OrderedFloat<f64>>,
1476 sort_key: (usize, &'a str),
1477 },
1478 }
1479
1480 let completion = &completions[mat.candidate_id];
1481 let sort_key = completion.sort_key();
1482 let sort_text = completion.lsp_completion.sort_text.as_deref();
1483 let score = Reverse(OrderedFloat(mat.score));
1484
1485 if mat.score >= 0.2 {
1486 MatchScore::Strong {
1487 score,
1488 sort_text,
1489 sort_key,
1490 }
1491 } else {
1492 MatchScore::Weak {
1493 sort_text,
1494 score,
1495 sort_key,
1496 }
1497 }
1498 });
1499 }
1500
1501 for mat in &mut matches {
1502 let completion = &completions[mat.candidate_id];
1503 mat.string.clone_from(&completion.label.text);
1504 for position in &mut mat.positions {
1505 *position += completion.label.filter_range.start;
1506 }
1507 }
1508 drop(completions);
1509
1510 self.matches = matches.into();
1511 self.selected_item = 0;
1512 }
1513}
1514
1515#[derive(Clone)]
1516struct AvailableCodeAction {
1517 excerpt_id: ExcerptId,
1518 action: CodeAction,
1519 provider: Arc<dyn CodeActionProvider>,
1520}
1521
1522#[derive(Clone)]
1523struct CodeActionContents {
1524 tasks: Option<Arc<ResolvedTasks>>,
1525 actions: Option<Arc<[AvailableCodeAction]>>,
1526}
1527
1528impl CodeActionContents {
1529 fn len(&self) -> usize {
1530 match (&self.tasks, &self.actions) {
1531 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1532 (Some(tasks), None) => tasks.templates.len(),
1533 (None, Some(actions)) => actions.len(),
1534 (None, None) => 0,
1535 }
1536 }
1537
1538 fn is_empty(&self) -> bool {
1539 match (&self.tasks, &self.actions) {
1540 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1541 (Some(tasks), None) => tasks.templates.is_empty(),
1542 (None, Some(actions)) => actions.is_empty(),
1543 (None, None) => true,
1544 }
1545 }
1546
1547 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1548 self.tasks
1549 .iter()
1550 .flat_map(|tasks| {
1551 tasks
1552 .templates
1553 .iter()
1554 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1555 })
1556 .chain(self.actions.iter().flat_map(|actions| {
1557 actions.iter().map(|available| CodeActionsItem::CodeAction {
1558 excerpt_id: available.excerpt_id,
1559 action: available.action.clone(),
1560 provider: available.provider.clone(),
1561 })
1562 }))
1563 }
1564 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1565 match (&self.tasks, &self.actions) {
1566 (Some(tasks), Some(actions)) => {
1567 if index < tasks.templates.len() {
1568 tasks
1569 .templates
1570 .get(index)
1571 .cloned()
1572 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1573 } else {
1574 actions.get(index - tasks.templates.len()).map(|available| {
1575 CodeActionsItem::CodeAction {
1576 excerpt_id: available.excerpt_id,
1577 action: available.action.clone(),
1578 provider: available.provider.clone(),
1579 }
1580 })
1581 }
1582 }
1583 (Some(tasks), None) => tasks
1584 .templates
1585 .get(index)
1586 .cloned()
1587 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1588 (None, Some(actions)) => {
1589 actions
1590 .get(index)
1591 .map(|available| CodeActionsItem::CodeAction {
1592 excerpt_id: available.excerpt_id,
1593 action: available.action.clone(),
1594 provider: available.provider.clone(),
1595 })
1596 }
1597 (None, None) => None,
1598 }
1599 }
1600}
1601
1602#[allow(clippy::large_enum_variant)]
1603#[derive(Clone)]
1604enum CodeActionsItem {
1605 Task(TaskSourceKind, ResolvedTask),
1606 CodeAction {
1607 excerpt_id: ExcerptId,
1608 action: CodeAction,
1609 provider: Arc<dyn CodeActionProvider>,
1610 },
1611}
1612
1613impl CodeActionsItem {
1614 fn as_task(&self) -> Option<&ResolvedTask> {
1615 let Self::Task(_, task) = self else {
1616 return None;
1617 };
1618 Some(task)
1619 }
1620 fn as_code_action(&self) -> Option<&CodeAction> {
1621 let Self::CodeAction { action, .. } = self else {
1622 return None;
1623 };
1624 Some(action)
1625 }
1626 fn label(&self) -> String {
1627 match self {
1628 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1629 Self::Task(_, task) => task.resolved_label.clone(),
1630 }
1631 }
1632}
1633
1634struct CodeActionsMenu {
1635 actions: CodeActionContents,
1636 buffer: Model<Buffer>,
1637 selected_item: usize,
1638 scroll_handle: UniformListScrollHandle,
1639 deployed_from_indicator: Option<DisplayRow>,
1640}
1641
1642impl CodeActionsMenu {
1643 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1644 self.selected_item = 0;
1645 self.scroll_handle
1646 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1647 cx.notify()
1648 }
1649
1650 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1651 if self.selected_item > 0 {
1652 self.selected_item -= 1;
1653 } else {
1654 self.selected_item = self.actions.len() - 1;
1655 }
1656 self.scroll_handle
1657 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1658 cx.notify();
1659 }
1660
1661 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1662 if self.selected_item + 1 < self.actions.len() {
1663 self.selected_item += 1;
1664 } else {
1665 self.selected_item = 0;
1666 }
1667 self.scroll_handle
1668 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1669 cx.notify();
1670 }
1671
1672 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1673 self.selected_item = self.actions.len() - 1;
1674 self.scroll_handle
1675 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1676 cx.notify()
1677 }
1678
1679 fn visible(&self) -> bool {
1680 !self.actions.is_empty()
1681 }
1682
1683 fn render(
1684 &self,
1685 cursor_position: DisplayPoint,
1686 _style: &EditorStyle,
1687 max_height: Pixels,
1688 cx: &mut ViewContext<Editor>,
1689 ) -> (ContextMenuOrigin, AnyElement) {
1690 let actions = self.actions.clone();
1691 let selected_item = self.selected_item;
1692 let element = uniform_list(
1693 cx.view().clone(),
1694 "code_actions_menu",
1695 self.actions.len(),
1696 move |_this, range, cx| {
1697 actions
1698 .iter()
1699 .skip(range.start)
1700 .take(range.end - range.start)
1701 .enumerate()
1702 .map(|(ix, action)| {
1703 let item_ix = range.start + ix;
1704 let selected = selected_item == item_ix;
1705 let colors = cx.theme().colors();
1706 div()
1707 .px_1()
1708 .rounded_md()
1709 .text_color(colors.text)
1710 .when(selected, |style| {
1711 style
1712 .bg(colors.element_active)
1713 .text_color(colors.text_accent)
1714 })
1715 .hover(|style| {
1716 style
1717 .bg(colors.element_hover)
1718 .text_color(colors.text_accent)
1719 })
1720 .whitespace_nowrap()
1721 .when_some(action.as_code_action(), |this, action| {
1722 this.on_mouse_down(
1723 MouseButton::Left,
1724 cx.listener(move |editor, _, cx| {
1725 cx.stop_propagation();
1726 if let Some(task) = editor.confirm_code_action(
1727 &ConfirmCodeAction {
1728 item_ix: Some(item_ix),
1729 },
1730 cx,
1731 ) {
1732 task.detach_and_log_err(cx)
1733 }
1734 }),
1735 )
1736 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1737 .child(SharedString::from(action.lsp_action.title.clone()))
1738 })
1739 .when_some(action.as_task(), |this, task| {
1740 this.on_mouse_down(
1741 MouseButton::Left,
1742 cx.listener(move |editor, _, cx| {
1743 cx.stop_propagation();
1744 if let Some(task) = editor.confirm_code_action(
1745 &ConfirmCodeAction {
1746 item_ix: Some(item_ix),
1747 },
1748 cx,
1749 ) {
1750 task.detach_and_log_err(cx)
1751 }
1752 }),
1753 )
1754 .child(SharedString::from(task.resolved_label.clone()))
1755 })
1756 })
1757 .collect()
1758 },
1759 )
1760 .elevation_1(cx)
1761 .p_1()
1762 .max_h(max_height)
1763 .occlude()
1764 .track_scroll(self.scroll_handle.clone())
1765 .with_width_from_item(
1766 self.actions
1767 .iter()
1768 .enumerate()
1769 .max_by_key(|(_, action)| match action {
1770 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1771 CodeActionsItem::CodeAction { action, .. } => {
1772 action.lsp_action.title.chars().count()
1773 }
1774 })
1775 .map(|(ix, _)| ix),
1776 )
1777 .with_sizing_behavior(ListSizingBehavior::Infer)
1778 .into_any_element();
1779
1780 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1781 ContextMenuOrigin::GutterIndicator(row)
1782 } else {
1783 ContextMenuOrigin::EditorPoint(cursor_position)
1784 };
1785
1786 (cursor_position, element)
1787 }
1788}
1789
1790#[derive(Debug)]
1791struct ActiveDiagnosticGroup {
1792 primary_range: Range<Anchor>,
1793 primary_message: String,
1794 group_id: usize,
1795 blocks: HashMap<CustomBlockId, Diagnostic>,
1796 is_valid: bool,
1797}
1798
1799#[derive(Serialize, Deserialize, Clone, Debug)]
1800pub struct ClipboardSelection {
1801 pub len: usize,
1802 pub is_entire_line: bool,
1803 pub first_line_indent: u32,
1804}
1805
1806#[derive(Debug)]
1807pub(crate) struct NavigationData {
1808 cursor_anchor: Anchor,
1809 cursor_position: Point,
1810 scroll_anchor: ScrollAnchor,
1811 scroll_top_row: u32,
1812}
1813
1814#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1815pub enum GotoDefinitionKind {
1816 Symbol,
1817 Declaration,
1818 Type,
1819 Implementation,
1820}
1821
1822#[derive(Debug, Clone)]
1823enum InlayHintRefreshReason {
1824 Toggle(bool),
1825 SettingsChange(InlayHintSettings),
1826 NewLinesShown,
1827 BufferEdited(HashSet<Arc<Language>>),
1828 RefreshRequested,
1829 ExcerptsRemoved(Vec<ExcerptId>),
1830}
1831
1832impl InlayHintRefreshReason {
1833 fn description(&self) -> &'static str {
1834 match self {
1835 Self::Toggle(_) => "toggle",
1836 Self::SettingsChange(_) => "settings change",
1837 Self::NewLinesShown => "new lines shown",
1838 Self::BufferEdited(_) => "buffer edited",
1839 Self::RefreshRequested => "refresh requested",
1840 Self::ExcerptsRemoved(_) => "excerpts removed",
1841 }
1842 }
1843}
1844
1845pub(crate) struct FocusedBlock {
1846 id: BlockId,
1847 focus_handle: WeakFocusHandle,
1848}
1849
1850#[derive(Clone)]
1851struct JumpData {
1852 excerpt_id: ExcerptId,
1853 position: Point,
1854 anchor: text::Anchor,
1855 path: Option<project::ProjectPath>,
1856 line_offset_from_top: u32,
1857}
1858
1859impl Editor {
1860 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1861 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1862 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1863 Self::new(
1864 EditorMode::SingleLine { auto_width: false },
1865 buffer,
1866 None,
1867 false,
1868 cx,
1869 )
1870 }
1871
1872 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1873 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1874 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1875 Self::new(EditorMode::Full, buffer, None, false, cx)
1876 }
1877
1878 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1879 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1880 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1881 Self::new(
1882 EditorMode::SingleLine { auto_width: true },
1883 buffer,
1884 None,
1885 false,
1886 cx,
1887 )
1888 }
1889
1890 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1891 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1892 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1893 Self::new(
1894 EditorMode::AutoHeight { max_lines },
1895 buffer,
1896 None,
1897 false,
1898 cx,
1899 )
1900 }
1901
1902 pub fn for_buffer(
1903 buffer: Model<Buffer>,
1904 project: Option<Model<Project>>,
1905 cx: &mut ViewContext<Self>,
1906 ) -> Self {
1907 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1908 Self::new(EditorMode::Full, buffer, project, false, cx)
1909 }
1910
1911 pub fn for_multibuffer(
1912 buffer: Model<MultiBuffer>,
1913 project: Option<Model<Project>>,
1914 show_excerpt_controls: bool,
1915 cx: &mut ViewContext<Self>,
1916 ) -> Self {
1917 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1918 }
1919
1920 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1921 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1922 let mut clone = Self::new(
1923 self.mode,
1924 self.buffer.clone(),
1925 self.project.clone(),
1926 show_excerpt_controls,
1927 cx,
1928 );
1929 self.display_map.update(cx, |display_map, cx| {
1930 let snapshot = display_map.snapshot(cx);
1931 clone.display_map.update(cx, |display_map, cx| {
1932 display_map.set_state(&snapshot, cx);
1933 });
1934 });
1935 clone.selections.clone_state(&self.selections);
1936 clone.scroll_manager.clone_state(&self.scroll_manager);
1937 clone.searchable = self.searchable;
1938 clone
1939 }
1940
1941 pub fn new(
1942 mode: EditorMode,
1943 buffer: Model<MultiBuffer>,
1944 project: Option<Model<Project>>,
1945 show_excerpt_controls: bool,
1946 cx: &mut ViewContext<Self>,
1947 ) -> Self {
1948 let style = cx.text_style();
1949 let font_size = style.font_size.to_pixels(cx.rem_size());
1950 let editor = cx.view().downgrade();
1951 let fold_placeholder = FoldPlaceholder {
1952 constrain_width: true,
1953 render: Arc::new(move |fold_id, fold_range, cx| {
1954 let editor = editor.clone();
1955 div()
1956 .id(fold_id)
1957 .bg(cx.theme().colors().ghost_element_background)
1958 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1959 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1960 .rounded_sm()
1961 .size_full()
1962 .cursor_pointer()
1963 .child("⋯")
1964 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1965 .on_click(move |_, cx| {
1966 editor
1967 .update(cx, |editor, cx| {
1968 editor.unfold_ranges(
1969 &[fold_range.start..fold_range.end],
1970 true,
1971 false,
1972 cx,
1973 );
1974 cx.stop_propagation();
1975 })
1976 .ok();
1977 })
1978 .into_any()
1979 }),
1980 merge_adjacent: true,
1981 ..Default::default()
1982 };
1983 let display_map = cx.new_model(|cx| {
1984 DisplayMap::new(
1985 buffer.clone(),
1986 style.font(),
1987 font_size,
1988 None,
1989 show_excerpt_controls,
1990 FILE_HEADER_HEIGHT,
1991 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1992 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1993 fold_placeholder,
1994 cx,
1995 )
1996 });
1997
1998 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1999
2000 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
2001
2002 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
2003 .then(|| language_settings::SoftWrap::None);
2004
2005 let mut project_subscriptions = Vec::new();
2006 if mode == EditorMode::Full {
2007 if let Some(project) = project.as_ref() {
2008 if buffer.read(cx).is_singleton() {
2009 project_subscriptions.push(cx.observe(project, |_, _, cx| {
2010 cx.emit(EditorEvent::TitleChanged);
2011 }));
2012 }
2013 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
2014 if let project::Event::RefreshInlayHints = event {
2015 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
2016 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
2017 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
2018 let focus_handle = editor.focus_handle(cx);
2019 if focus_handle.is_focused(cx) {
2020 let snapshot = buffer.read(cx).snapshot();
2021 for (range, snippet) in snippet_edits {
2022 let editor_range =
2023 language::range_from_lsp(*range).to_offset(&snapshot);
2024 editor
2025 .insert_snippet(&[editor_range], snippet.clone(), cx)
2026 .ok();
2027 }
2028 }
2029 }
2030 }
2031 }));
2032 if let Some(task_inventory) = project
2033 .read(cx)
2034 .task_store()
2035 .read(cx)
2036 .task_inventory()
2037 .cloned()
2038 {
2039 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2040 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2041 }));
2042 }
2043 }
2044 }
2045
2046 let inlay_hint_settings = inlay_hint_settings(
2047 selections.newest_anchor().head(),
2048 &buffer.read(cx).snapshot(cx),
2049 cx,
2050 );
2051 let focus_handle = cx.focus_handle();
2052 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2053 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2054 .detach();
2055 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2056 .detach();
2057 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2058
2059 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2060 Some(false)
2061 } else {
2062 None
2063 };
2064
2065 let mut code_action_providers = Vec::new();
2066 if let Some(project) = project.clone() {
2067 code_action_providers.push(Arc::new(project) as Arc<_>);
2068 }
2069
2070 let mut this = Self {
2071 focus_handle,
2072 show_cursor_when_unfocused: false,
2073 last_focused_descendant: None,
2074 buffer: buffer.clone(),
2075 display_map: display_map.clone(),
2076 selections,
2077 scroll_manager: ScrollManager::new(cx),
2078 columnar_selection_tail: None,
2079 add_selections_state: None,
2080 select_next_state: None,
2081 select_prev_state: None,
2082 selection_history: Default::default(),
2083 autoclose_regions: Default::default(),
2084 snippet_stack: Default::default(),
2085 select_larger_syntax_node_stack: Vec::new(),
2086 ime_transaction: Default::default(),
2087 active_diagnostics: None,
2088 soft_wrap_mode_override,
2089 completion_provider: project.clone().map(|project| Box::new(project) as _),
2090 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2091 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2092 project,
2093 blink_manager: blink_manager.clone(),
2094 show_local_selections: true,
2095 mode,
2096 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2097 show_gutter: mode == EditorMode::Full,
2098 show_line_numbers: None,
2099 use_relative_line_numbers: None,
2100 show_git_diff_gutter: None,
2101 show_code_actions: None,
2102 show_runnables: None,
2103 show_wrap_guides: None,
2104 show_indent_guides,
2105 placeholder_text: None,
2106 highlight_order: 0,
2107 highlighted_rows: HashMap::default(),
2108 background_highlights: Default::default(),
2109 gutter_highlights: TreeMap::default(),
2110 scrollbar_marker_state: ScrollbarMarkerState::default(),
2111 active_indent_guides_state: ActiveIndentGuidesState::default(),
2112 nav_history: None,
2113 context_menu: RwLock::new(None),
2114 mouse_context_menu: None,
2115 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2116 completion_tasks: Default::default(),
2117 signature_help_state: SignatureHelpState::default(),
2118 auto_signature_help: None,
2119 find_all_references_task_sources: Vec::new(),
2120 next_completion_id: 0,
2121 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2122 next_inlay_id: 0,
2123 code_action_providers,
2124 available_code_actions: Default::default(),
2125 code_actions_task: Default::default(),
2126 document_highlights_task: Default::default(),
2127 linked_editing_range_task: Default::default(),
2128 pending_rename: Default::default(),
2129 searchable: true,
2130 cursor_shape: EditorSettings::get_global(cx)
2131 .cursor_shape
2132 .unwrap_or_default(),
2133 current_line_highlight: None,
2134 autoindent_mode: Some(AutoindentMode::EachLine),
2135 collapse_matches: false,
2136 workspace: None,
2137 input_enabled: true,
2138 use_modal_editing: mode == EditorMode::Full,
2139 read_only: false,
2140 use_autoclose: true,
2141 use_auto_surround: true,
2142 auto_replace_emoji_shortcode: false,
2143 leader_peer_id: None,
2144 remote_id: None,
2145 hover_state: Default::default(),
2146 hovered_link_state: Default::default(),
2147 inline_completion_provider: None,
2148 active_inline_completion: None,
2149 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2150 expanded_hunks: ExpandedHunks::default(),
2151 gutter_hovered: false,
2152 pixel_position_of_newest_cursor: None,
2153 last_bounds: None,
2154 expect_bounds_change: None,
2155 gutter_dimensions: GutterDimensions::default(),
2156 style: None,
2157 show_cursor_names: false,
2158 hovered_cursors: Default::default(),
2159 next_editor_action_id: EditorActionId::default(),
2160 editor_actions: Rc::default(),
2161 show_inline_completions_override: None,
2162 enable_inline_completions: true,
2163 custom_context_menu: None,
2164 show_git_blame_gutter: false,
2165 show_git_blame_inline: false,
2166 show_selection_menu: None,
2167 show_git_blame_inline_delay_task: None,
2168 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2169 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2170 .session
2171 .restore_unsaved_buffers,
2172 blame: None,
2173 blame_subscription: None,
2174 tasks: Default::default(),
2175 _subscriptions: vec![
2176 cx.observe(&buffer, Self::on_buffer_changed),
2177 cx.subscribe(&buffer, Self::on_buffer_event),
2178 cx.observe(&display_map, Self::on_display_map_changed),
2179 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2180 cx.observe_global::<SettingsStore>(Self::settings_changed),
2181 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2182 cx.observe_window_activation(|editor, cx| {
2183 let active = cx.is_window_active();
2184 editor.blink_manager.update(cx, |blink_manager, cx| {
2185 if active {
2186 blink_manager.enable(cx);
2187 } else {
2188 blink_manager.disable(cx);
2189 }
2190 });
2191 }),
2192 ],
2193 tasks_update_task: None,
2194 linked_edit_ranges: Default::default(),
2195 previous_search_ranges: None,
2196 breadcrumb_header: None,
2197 focused_block: None,
2198 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2199 addons: HashMap::default(),
2200 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2201 text_style_refinement: None,
2202 };
2203 this.tasks_update_task = Some(this.refresh_runnables(cx));
2204 this._subscriptions.extend(project_subscriptions);
2205
2206 this.end_selection(cx);
2207 this.scroll_manager.show_scrollbar(cx);
2208
2209 if mode == EditorMode::Full {
2210 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2211 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2212
2213 if this.git_blame_inline_enabled {
2214 this.git_blame_inline_enabled = true;
2215 this.start_git_blame_inline(false, cx);
2216 }
2217 }
2218
2219 this.report_editor_event("open", None, cx);
2220 this
2221 }
2222
2223 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2224 self.mouse_context_menu
2225 .as_ref()
2226 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2227 }
2228
2229 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2230 let mut key_context = KeyContext::new_with_defaults();
2231 key_context.add("Editor");
2232 let mode = match self.mode {
2233 EditorMode::SingleLine { .. } => "single_line",
2234 EditorMode::AutoHeight { .. } => "auto_height",
2235 EditorMode::Full => "full",
2236 };
2237
2238 if EditorSettings::jupyter_enabled(cx) {
2239 key_context.add("jupyter");
2240 }
2241
2242 key_context.set("mode", mode);
2243 if self.pending_rename.is_some() {
2244 key_context.add("renaming");
2245 }
2246 if self.context_menu_visible() {
2247 match self.context_menu.read().as_ref() {
2248 Some(ContextMenu::Completions(_)) => {
2249 key_context.add("menu");
2250 key_context.add("showing_completions")
2251 }
2252 Some(ContextMenu::CodeActions(_)) => {
2253 key_context.add("menu");
2254 key_context.add("showing_code_actions")
2255 }
2256 None => {}
2257 }
2258 }
2259
2260 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2261 if !self.focus_handle(cx).contains_focused(cx)
2262 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2263 {
2264 for addon in self.addons.values() {
2265 addon.extend_key_context(&mut key_context, cx)
2266 }
2267 }
2268
2269 if let Some(extension) = self
2270 .buffer
2271 .read(cx)
2272 .as_singleton()
2273 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2274 {
2275 key_context.set("extension", extension.to_string());
2276 }
2277
2278 if self.has_active_inline_completion(cx) {
2279 key_context.add("copilot_suggestion");
2280 key_context.add("inline_completion");
2281 }
2282
2283 key_context
2284 }
2285
2286 pub fn new_file(
2287 workspace: &mut Workspace,
2288 _: &workspace::NewFile,
2289 cx: &mut ViewContext<Workspace>,
2290 ) {
2291 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2292 "Failed to create buffer",
2293 cx,
2294 |e, _| match e.error_code() {
2295 ErrorCode::RemoteUpgradeRequired => Some(format!(
2296 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2297 e.error_tag("required").unwrap_or("the latest version")
2298 )),
2299 _ => None,
2300 },
2301 );
2302 }
2303
2304 pub fn new_in_workspace(
2305 workspace: &mut Workspace,
2306 cx: &mut ViewContext<Workspace>,
2307 ) -> Task<Result<View<Editor>>> {
2308 let project = workspace.project().clone();
2309 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2310
2311 cx.spawn(|workspace, mut cx| async move {
2312 let buffer = create.await?;
2313 workspace.update(&mut cx, |workspace, cx| {
2314 let editor =
2315 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2316 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2317 editor
2318 })
2319 })
2320 }
2321
2322 fn new_file_vertical(
2323 workspace: &mut Workspace,
2324 _: &workspace::NewFileSplitVertical,
2325 cx: &mut ViewContext<Workspace>,
2326 ) {
2327 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2328 }
2329
2330 fn new_file_horizontal(
2331 workspace: &mut Workspace,
2332 _: &workspace::NewFileSplitHorizontal,
2333 cx: &mut ViewContext<Workspace>,
2334 ) {
2335 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2336 }
2337
2338 fn new_file_in_direction(
2339 workspace: &mut Workspace,
2340 direction: SplitDirection,
2341 cx: &mut ViewContext<Workspace>,
2342 ) {
2343 let project = workspace.project().clone();
2344 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2345
2346 cx.spawn(|workspace, mut cx| async move {
2347 let buffer = create.await?;
2348 workspace.update(&mut cx, move |workspace, cx| {
2349 workspace.split_item(
2350 direction,
2351 Box::new(
2352 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2353 ),
2354 cx,
2355 )
2356 })?;
2357 anyhow::Ok(())
2358 })
2359 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2360 ErrorCode::RemoteUpgradeRequired => Some(format!(
2361 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2362 e.error_tag("required").unwrap_or("the latest version")
2363 )),
2364 _ => None,
2365 });
2366 }
2367
2368 pub fn leader_peer_id(&self) -> Option<PeerId> {
2369 self.leader_peer_id
2370 }
2371
2372 pub fn buffer(&self) -> &Model<MultiBuffer> {
2373 &self.buffer
2374 }
2375
2376 pub fn workspace(&self) -> Option<View<Workspace>> {
2377 self.workspace.as_ref()?.0.upgrade()
2378 }
2379
2380 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2381 self.buffer().read(cx).title(cx)
2382 }
2383
2384 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2385 let git_blame_gutter_max_author_length = self
2386 .render_git_blame_gutter(cx)
2387 .then(|| {
2388 if let Some(blame) = self.blame.as_ref() {
2389 let max_author_length =
2390 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2391 Some(max_author_length)
2392 } else {
2393 None
2394 }
2395 })
2396 .flatten();
2397
2398 EditorSnapshot {
2399 mode: self.mode,
2400 show_gutter: self.show_gutter,
2401 show_line_numbers: self.show_line_numbers,
2402 show_git_diff_gutter: self.show_git_diff_gutter,
2403 show_code_actions: self.show_code_actions,
2404 show_runnables: self.show_runnables,
2405 git_blame_gutter_max_author_length,
2406 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2407 scroll_anchor: self.scroll_manager.anchor(),
2408 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2409 placeholder_text: self.placeholder_text.clone(),
2410 is_focused: self.focus_handle.is_focused(cx),
2411 current_line_highlight: self
2412 .current_line_highlight
2413 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2414 gutter_hovered: self.gutter_hovered,
2415 }
2416 }
2417
2418 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2419 self.buffer.read(cx).language_at(point, cx)
2420 }
2421
2422 pub fn file_at<T: ToOffset>(
2423 &self,
2424 point: T,
2425 cx: &AppContext,
2426 ) -> Option<Arc<dyn language::File>> {
2427 self.buffer.read(cx).read(cx).file_at(point).cloned()
2428 }
2429
2430 pub fn active_excerpt(
2431 &self,
2432 cx: &AppContext,
2433 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2434 self.buffer
2435 .read(cx)
2436 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2437 }
2438
2439 pub fn mode(&self) -> EditorMode {
2440 self.mode
2441 }
2442
2443 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2444 self.collaboration_hub.as_deref()
2445 }
2446
2447 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2448 self.collaboration_hub = Some(hub);
2449 }
2450
2451 pub fn set_custom_context_menu(
2452 &mut self,
2453 f: impl 'static
2454 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2455 ) {
2456 self.custom_context_menu = Some(Box::new(f))
2457 }
2458
2459 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2460 self.completion_provider = provider;
2461 }
2462
2463 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2464 self.semantics_provider.clone()
2465 }
2466
2467 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2468 self.semantics_provider = provider;
2469 }
2470
2471 pub fn set_inline_completion_provider<T>(
2472 &mut self,
2473 provider: Option<Model<T>>,
2474 cx: &mut ViewContext<Self>,
2475 ) where
2476 T: InlineCompletionProvider,
2477 {
2478 self.inline_completion_provider =
2479 provider.map(|provider| RegisteredInlineCompletionProvider {
2480 _subscription: cx.observe(&provider, |this, _, cx| {
2481 if this.focus_handle.is_focused(cx) {
2482 this.update_visible_inline_completion(cx);
2483 }
2484 }),
2485 provider: Arc::new(provider),
2486 });
2487 self.refresh_inline_completion(false, false, cx);
2488 }
2489
2490 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2491 self.placeholder_text.as_deref()
2492 }
2493
2494 pub fn set_placeholder_text(
2495 &mut self,
2496 placeholder_text: impl Into<Arc<str>>,
2497 cx: &mut ViewContext<Self>,
2498 ) {
2499 let placeholder_text = Some(placeholder_text.into());
2500 if self.placeholder_text != placeholder_text {
2501 self.placeholder_text = placeholder_text;
2502 cx.notify();
2503 }
2504 }
2505
2506 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2507 self.cursor_shape = cursor_shape;
2508
2509 // Disrupt blink for immediate user feedback that the cursor shape has changed
2510 self.blink_manager.update(cx, BlinkManager::show_cursor);
2511
2512 cx.notify();
2513 }
2514
2515 pub fn set_current_line_highlight(
2516 &mut self,
2517 current_line_highlight: Option<CurrentLineHighlight>,
2518 ) {
2519 self.current_line_highlight = current_line_highlight;
2520 }
2521
2522 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2523 self.collapse_matches = collapse_matches;
2524 }
2525
2526 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2527 if self.collapse_matches {
2528 return range.start..range.start;
2529 }
2530 range.clone()
2531 }
2532
2533 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2534 if self.display_map.read(cx).clip_at_line_ends != clip {
2535 self.display_map
2536 .update(cx, |map, _| map.clip_at_line_ends = clip);
2537 }
2538 }
2539
2540 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2541 self.input_enabled = input_enabled;
2542 }
2543
2544 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2545 self.enable_inline_completions = enabled;
2546 }
2547
2548 pub fn set_autoindent(&mut self, autoindent: bool) {
2549 if autoindent {
2550 self.autoindent_mode = Some(AutoindentMode::EachLine);
2551 } else {
2552 self.autoindent_mode = None;
2553 }
2554 }
2555
2556 pub fn read_only(&self, cx: &AppContext) -> bool {
2557 self.read_only || self.buffer.read(cx).read_only()
2558 }
2559
2560 pub fn set_read_only(&mut self, read_only: bool) {
2561 self.read_only = read_only;
2562 }
2563
2564 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2565 self.use_autoclose = autoclose;
2566 }
2567
2568 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2569 self.use_auto_surround = auto_surround;
2570 }
2571
2572 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2573 self.auto_replace_emoji_shortcode = auto_replace;
2574 }
2575
2576 pub fn toggle_inline_completions(
2577 &mut self,
2578 _: &ToggleInlineCompletions,
2579 cx: &mut ViewContext<Self>,
2580 ) {
2581 if self.show_inline_completions_override.is_some() {
2582 self.set_show_inline_completions(None, cx);
2583 } else {
2584 let cursor = self.selections.newest_anchor().head();
2585 if let Some((buffer, cursor_buffer_position)) =
2586 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2587 {
2588 let show_inline_completions =
2589 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2590 self.set_show_inline_completions(Some(show_inline_completions), cx);
2591 }
2592 }
2593 }
2594
2595 pub fn set_show_inline_completions(
2596 &mut self,
2597 show_inline_completions: Option<bool>,
2598 cx: &mut ViewContext<Self>,
2599 ) {
2600 self.show_inline_completions_override = show_inline_completions;
2601 self.refresh_inline_completion(false, true, cx);
2602 }
2603
2604 fn should_show_inline_completions(
2605 &self,
2606 buffer: &Model<Buffer>,
2607 buffer_position: language::Anchor,
2608 cx: &AppContext,
2609 ) -> bool {
2610 if !self.snippet_stack.is_empty() {
2611 return false;
2612 }
2613
2614 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2615 return false;
2616 }
2617
2618 if let Some(provider) = self.inline_completion_provider() {
2619 if let Some(show_inline_completions) = self.show_inline_completions_override {
2620 show_inline_completions
2621 } else {
2622 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2623 }
2624 } else {
2625 false
2626 }
2627 }
2628
2629 fn inline_completions_disabled_in_scope(
2630 &self,
2631 buffer: &Model<Buffer>,
2632 buffer_position: language::Anchor,
2633 cx: &AppContext,
2634 ) -> bool {
2635 let snapshot = buffer.read(cx).snapshot();
2636 let settings = snapshot.settings_at(buffer_position, cx);
2637
2638 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2639 return false;
2640 };
2641
2642 scope.override_name().map_or(false, |scope_name| {
2643 settings
2644 .inline_completions_disabled_in
2645 .iter()
2646 .any(|s| s == scope_name)
2647 })
2648 }
2649
2650 pub fn set_use_modal_editing(&mut self, to: bool) {
2651 self.use_modal_editing = to;
2652 }
2653
2654 pub fn use_modal_editing(&self) -> bool {
2655 self.use_modal_editing
2656 }
2657
2658 fn selections_did_change(
2659 &mut self,
2660 local: bool,
2661 old_cursor_position: &Anchor,
2662 show_completions: bool,
2663 cx: &mut ViewContext<Self>,
2664 ) {
2665 cx.invalidate_character_coordinates();
2666
2667 // Copy selections to primary selection buffer
2668 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2669 if local {
2670 let selections = self.selections.all::<usize>(cx);
2671 let buffer_handle = self.buffer.read(cx).read(cx);
2672
2673 let mut text = String::new();
2674 for (index, selection) in selections.iter().enumerate() {
2675 let text_for_selection = buffer_handle
2676 .text_for_range(selection.start..selection.end)
2677 .collect::<String>();
2678
2679 text.push_str(&text_for_selection);
2680 if index != selections.len() - 1 {
2681 text.push('\n');
2682 }
2683 }
2684
2685 if !text.is_empty() {
2686 cx.write_to_primary(ClipboardItem::new_string(text));
2687 }
2688 }
2689
2690 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2691 self.buffer.update(cx, |buffer, cx| {
2692 buffer.set_active_selections(
2693 &self.selections.disjoint_anchors(),
2694 self.selections.line_mode,
2695 self.cursor_shape,
2696 cx,
2697 )
2698 });
2699 }
2700 let display_map = self
2701 .display_map
2702 .update(cx, |display_map, cx| display_map.snapshot(cx));
2703 let buffer = &display_map.buffer_snapshot;
2704 self.add_selections_state = None;
2705 self.select_next_state = None;
2706 self.select_prev_state = None;
2707 self.select_larger_syntax_node_stack.clear();
2708 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2709 self.snippet_stack
2710 .invalidate(&self.selections.disjoint_anchors(), buffer);
2711 self.take_rename(false, cx);
2712
2713 let new_cursor_position = self.selections.newest_anchor().head();
2714
2715 self.push_to_nav_history(
2716 *old_cursor_position,
2717 Some(new_cursor_position.to_point(buffer)),
2718 cx,
2719 );
2720
2721 if local {
2722 let new_cursor_position = self.selections.newest_anchor().head();
2723 let mut context_menu = self.context_menu.write();
2724 let completion_menu = match context_menu.as_ref() {
2725 Some(ContextMenu::Completions(menu)) => Some(menu),
2726
2727 _ => {
2728 *context_menu = None;
2729 None
2730 }
2731 };
2732
2733 if let Some(completion_menu) = completion_menu {
2734 let cursor_position = new_cursor_position.to_offset(buffer);
2735 let (word_range, kind) =
2736 buffer.surrounding_word(completion_menu.initial_position, true);
2737 if kind == Some(CharKind::Word)
2738 && word_range.to_inclusive().contains(&cursor_position)
2739 {
2740 let mut completion_menu = completion_menu.clone();
2741 drop(context_menu);
2742
2743 let query = Self::completion_query(buffer, cursor_position);
2744 cx.spawn(move |this, mut cx| async move {
2745 completion_menu
2746 .filter(query.as_deref(), cx.background_executor().clone())
2747 .await;
2748
2749 this.update(&mut cx, |this, cx| {
2750 let mut context_menu = this.context_menu.write();
2751 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2752 return;
2753 };
2754
2755 if menu.id > completion_menu.id {
2756 return;
2757 }
2758
2759 *context_menu = Some(ContextMenu::Completions(completion_menu));
2760 drop(context_menu);
2761 cx.notify();
2762 })
2763 })
2764 .detach();
2765
2766 if show_completions {
2767 self.show_completions(&ShowCompletions { trigger: None }, cx);
2768 }
2769 } else {
2770 drop(context_menu);
2771 self.hide_context_menu(cx);
2772 }
2773 } else {
2774 drop(context_menu);
2775 }
2776
2777 hide_hover(self, cx);
2778
2779 if old_cursor_position.to_display_point(&display_map).row()
2780 != new_cursor_position.to_display_point(&display_map).row()
2781 {
2782 self.available_code_actions.take();
2783 }
2784 self.refresh_code_actions(cx);
2785 self.refresh_document_highlights(cx);
2786 refresh_matching_bracket_highlights(self, cx);
2787 self.discard_inline_completion(false, cx);
2788 linked_editing_ranges::refresh_linked_ranges(self, cx);
2789 if self.git_blame_inline_enabled {
2790 self.start_inline_blame_timer(cx);
2791 }
2792 }
2793
2794 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2795 cx.emit(EditorEvent::SelectionsChanged { local });
2796
2797 if self.selections.disjoint_anchors().len() == 1 {
2798 cx.emit(SearchEvent::ActiveMatchChanged)
2799 }
2800 cx.notify();
2801 }
2802
2803 pub fn change_selections<R>(
2804 &mut self,
2805 autoscroll: Option<Autoscroll>,
2806 cx: &mut ViewContext<Self>,
2807 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2808 ) -> R {
2809 self.change_selections_inner(autoscroll, true, cx, change)
2810 }
2811
2812 pub fn change_selections_inner<R>(
2813 &mut self,
2814 autoscroll: Option<Autoscroll>,
2815 request_completions: bool,
2816 cx: &mut ViewContext<Self>,
2817 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2818 ) -> R {
2819 let old_cursor_position = self.selections.newest_anchor().head();
2820 self.push_to_selection_history();
2821
2822 let (changed, result) = self.selections.change_with(cx, change);
2823
2824 if changed {
2825 if let Some(autoscroll) = autoscroll {
2826 self.request_autoscroll(autoscroll, cx);
2827 }
2828 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2829
2830 if self.should_open_signature_help_automatically(
2831 &old_cursor_position,
2832 self.signature_help_state.backspace_pressed(),
2833 cx,
2834 ) {
2835 self.show_signature_help(&ShowSignatureHelp, cx);
2836 }
2837 self.signature_help_state.set_backspace_pressed(false);
2838 }
2839
2840 result
2841 }
2842
2843 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2844 where
2845 I: IntoIterator<Item = (Range<S>, T)>,
2846 S: ToOffset,
2847 T: Into<Arc<str>>,
2848 {
2849 if self.read_only(cx) {
2850 return;
2851 }
2852
2853 self.buffer
2854 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2855 }
2856
2857 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2858 where
2859 I: IntoIterator<Item = (Range<S>, T)>,
2860 S: ToOffset,
2861 T: Into<Arc<str>>,
2862 {
2863 if self.read_only(cx) {
2864 return;
2865 }
2866
2867 self.buffer.update(cx, |buffer, cx| {
2868 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2869 });
2870 }
2871
2872 pub fn edit_with_block_indent<I, S, T>(
2873 &mut self,
2874 edits: I,
2875 original_indent_columns: Vec<u32>,
2876 cx: &mut ViewContext<Self>,
2877 ) where
2878 I: IntoIterator<Item = (Range<S>, T)>,
2879 S: ToOffset,
2880 T: Into<Arc<str>>,
2881 {
2882 if self.read_only(cx) {
2883 return;
2884 }
2885
2886 self.buffer.update(cx, |buffer, cx| {
2887 buffer.edit(
2888 edits,
2889 Some(AutoindentMode::Block {
2890 original_indent_columns,
2891 }),
2892 cx,
2893 )
2894 });
2895 }
2896
2897 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2898 self.hide_context_menu(cx);
2899
2900 match phase {
2901 SelectPhase::Begin {
2902 position,
2903 add,
2904 click_count,
2905 } => self.begin_selection(position, add, click_count, cx),
2906 SelectPhase::BeginColumnar {
2907 position,
2908 goal_column,
2909 reset,
2910 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2911 SelectPhase::Extend {
2912 position,
2913 click_count,
2914 } => self.extend_selection(position, click_count, cx),
2915 SelectPhase::Update {
2916 position,
2917 goal_column,
2918 scroll_delta,
2919 } => self.update_selection(position, goal_column, scroll_delta, cx),
2920 SelectPhase::End => self.end_selection(cx),
2921 }
2922 }
2923
2924 fn extend_selection(
2925 &mut self,
2926 position: DisplayPoint,
2927 click_count: usize,
2928 cx: &mut ViewContext<Self>,
2929 ) {
2930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2931 let tail = self.selections.newest::<usize>(cx).tail();
2932 self.begin_selection(position, false, click_count, cx);
2933
2934 let position = position.to_offset(&display_map, Bias::Left);
2935 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2936
2937 let mut pending_selection = self
2938 .selections
2939 .pending_anchor()
2940 .expect("extend_selection not called with pending selection");
2941 if position >= tail {
2942 pending_selection.start = tail_anchor;
2943 } else {
2944 pending_selection.end = tail_anchor;
2945 pending_selection.reversed = true;
2946 }
2947
2948 let mut pending_mode = self.selections.pending_mode().unwrap();
2949 match &mut pending_mode {
2950 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2951 _ => {}
2952 }
2953
2954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2955 s.set_pending(pending_selection, pending_mode)
2956 });
2957 }
2958
2959 fn begin_selection(
2960 &mut self,
2961 position: DisplayPoint,
2962 add: bool,
2963 click_count: usize,
2964 cx: &mut ViewContext<Self>,
2965 ) {
2966 if !self.focus_handle.is_focused(cx) {
2967 self.last_focused_descendant = None;
2968 cx.focus(&self.focus_handle);
2969 }
2970
2971 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2972 let buffer = &display_map.buffer_snapshot;
2973 let newest_selection = self.selections.newest_anchor().clone();
2974 let position = display_map.clip_point(position, Bias::Left);
2975
2976 let start;
2977 let end;
2978 let mode;
2979 let auto_scroll;
2980 match click_count {
2981 1 => {
2982 start = buffer.anchor_before(position.to_point(&display_map));
2983 end = start;
2984 mode = SelectMode::Character;
2985 auto_scroll = true;
2986 }
2987 2 => {
2988 let range = movement::surrounding_word(&display_map, position);
2989 start = buffer.anchor_before(range.start.to_point(&display_map));
2990 end = buffer.anchor_before(range.end.to_point(&display_map));
2991 mode = SelectMode::Word(start..end);
2992 auto_scroll = true;
2993 }
2994 3 => {
2995 let position = display_map
2996 .clip_point(position, Bias::Left)
2997 .to_point(&display_map);
2998 let line_start = display_map.prev_line_boundary(position).0;
2999 let next_line_start = buffer.clip_point(
3000 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3001 Bias::Left,
3002 );
3003 start = buffer.anchor_before(line_start);
3004 end = buffer.anchor_before(next_line_start);
3005 mode = SelectMode::Line(start..end);
3006 auto_scroll = true;
3007 }
3008 _ => {
3009 start = buffer.anchor_before(0);
3010 end = buffer.anchor_before(buffer.len());
3011 mode = SelectMode::All;
3012 auto_scroll = false;
3013 }
3014 }
3015
3016 let point_to_delete: Option<usize> = {
3017 let selected_points: Vec<Selection<Point>> =
3018 self.selections.disjoint_in_range(start..end, cx);
3019
3020 if !add || click_count > 1 {
3021 None
3022 } else if !selected_points.is_empty() {
3023 Some(selected_points[0].id)
3024 } else {
3025 let clicked_point_already_selected =
3026 self.selections.disjoint.iter().find(|selection| {
3027 selection.start.to_point(buffer) == start.to_point(buffer)
3028 || selection.end.to_point(buffer) == end.to_point(buffer)
3029 });
3030
3031 clicked_point_already_selected.map(|selection| selection.id)
3032 }
3033 };
3034
3035 let selections_count = self.selections.count();
3036
3037 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3038 if let Some(point_to_delete) = point_to_delete {
3039 s.delete(point_to_delete);
3040
3041 if selections_count == 1 {
3042 s.set_pending_anchor_range(start..end, mode);
3043 }
3044 } else {
3045 if !add {
3046 s.clear_disjoint();
3047 } else if click_count > 1 {
3048 s.delete(newest_selection.id)
3049 }
3050
3051 s.set_pending_anchor_range(start..end, mode);
3052 }
3053 });
3054 }
3055
3056 fn begin_columnar_selection(
3057 &mut self,
3058 position: DisplayPoint,
3059 goal_column: u32,
3060 reset: bool,
3061 cx: &mut ViewContext<Self>,
3062 ) {
3063 if !self.focus_handle.is_focused(cx) {
3064 self.last_focused_descendant = None;
3065 cx.focus(&self.focus_handle);
3066 }
3067
3068 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3069
3070 if reset {
3071 let pointer_position = display_map
3072 .buffer_snapshot
3073 .anchor_before(position.to_point(&display_map));
3074
3075 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3076 s.clear_disjoint();
3077 s.set_pending_anchor_range(
3078 pointer_position..pointer_position,
3079 SelectMode::Character,
3080 );
3081 });
3082 }
3083
3084 let tail = self.selections.newest::<Point>(cx).tail();
3085 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3086
3087 if !reset {
3088 self.select_columns(
3089 tail.to_display_point(&display_map),
3090 position,
3091 goal_column,
3092 &display_map,
3093 cx,
3094 );
3095 }
3096 }
3097
3098 fn update_selection(
3099 &mut self,
3100 position: DisplayPoint,
3101 goal_column: u32,
3102 scroll_delta: gpui::Point<f32>,
3103 cx: &mut ViewContext<Self>,
3104 ) {
3105 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3106
3107 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3108 let tail = tail.to_display_point(&display_map);
3109 self.select_columns(tail, position, goal_column, &display_map, cx);
3110 } else if let Some(mut pending) = self.selections.pending_anchor() {
3111 let buffer = self.buffer.read(cx).snapshot(cx);
3112 let head;
3113 let tail;
3114 let mode = self.selections.pending_mode().unwrap();
3115 match &mode {
3116 SelectMode::Character => {
3117 head = position.to_point(&display_map);
3118 tail = pending.tail().to_point(&buffer);
3119 }
3120 SelectMode::Word(original_range) => {
3121 let original_display_range = original_range.start.to_display_point(&display_map)
3122 ..original_range.end.to_display_point(&display_map);
3123 let original_buffer_range = original_display_range.start.to_point(&display_map)
3124 ..original_display_range.end.to_point(&display_map);
3125 if movement::is_inside_word(&display_map, position)
3126 || original_display_range.contains(&position)
3127 {
3128 let word_range = movement::surrounding_word(&display_map, position);
3129 if word_range.start < original_display_range.start {
3130 head = word_range.start.to_point(&display_map);
3131 } else {
3132 head = word_range.end.to_point(&display_map);
3133 }
3134 } else {
3135 head = position.to_point(&display_map);
3136 }
3137
3138 if head <= original_buffer_range.start {
3139 tail = original_buffer_range.end;
3140 } else {
3141 tail = original_buffer_range.start;
3142 }
3143 }
3144 SelectMode::Line(original_range) => {
3145 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3146
3147 let position = display_map
3148 .clip_point(position, Bias::Left)
3149 .to_point(&display_map);
3150 let line_start = display_map.prev_line_boundary(position).0;
3151 let next_line_start = buffer.clip_point(
3152 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3153 Bias::Left,
3154 );
3155
3156 if line_start < original_range.start {
3157 head = line_start
3158 } else {
3159 head = next_line_start
3160 }
3161
3162 if head <= original_range.start {
3163 tail = original_range.end;
3164 } else {
3165 tail = original_range.start;
3166 }
3167 }
3168 SelectMode::All => {
3169 return;
3170 }
3171 };
3172
3173 if head < tail {
3174 pending.start = buffer.anchor_before(head);
3175 pending.end = buffer.anchor_before(tail);
3176 pending.reversed = true;
3177 } else {
3178 pending.start = buffer.anchor_before(tail);
3179 pending.end = buffer.anchor_before(head);
3180 pending.reversed = false;
3181 }
3182
3183 self.change_selections(None, cx, |s| {
3184 s.set_pending(pending, mode);
3185 });
3186 } else {
3187 log::error!("update_selection dispatched with no pending selection");
3188 return;
3189 }
3190
3191 self.apply_scroll_delta(scroll_delta, cx);
3192 cx.notify();
3193 }
3194
3195 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3196 self.columnar_selection_tail.take();
3197 if self.selections.pending_anchor().is_some() {
3198 let selections = self.selections.all::<usize>(cx);
3199 self.change_selections(None, cx, |s| {
3200 s.select(selections);
3201 s.clear_pending();
3202 });
3203 }
3204 }
3205
3206 fn select_columns(
3207 &mut self,
3208 tail: DisplayPoint,
3209 head: DisplayPoint,
3210 goal_column: u32,
3211 display_map: &DisplaySnapshot,
3212 cx: &mut ViewContext<Self>,
3213 ) {
3214 let start_row = cmp::min(tail.row(), head.row());
3215 let end_row = cmp::max(tail.row(), head.row());
3216 let start_column = cmp::min(tail.column(), goal_column);
3217 let end_column = cmp::max(tail.column(), goal_column);
3218 let reversed = start_column < tail.column();
3219
3220 let selection_ranges = (start_row.0..=end_row.0)
3221 .map(DisplayRow)
3222 .filter_map(|row| {
3223 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3224 let start = display_map
3225 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3226 .to_point(display_map);
3227 let end = display_map
3228 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3229 .to_point(display_map);
3230 if reversed {
3231 Some(end..start)
3232 } else {
3233 Some(start..end)
3234 }
3235 } else {
3236 None
3237 }
3238 })
3239 .collect::<Vec<_>>();
3240
3241 self.change_selections(None, cx, |s| {
3242 s.select_ranges(selection_ranges);
3243 });
3244 cx.notify();
3245 }
3246
3247 pub fn has_pending_nonempty_selection(&self) -> bool {
3248 let pending_nonempty_selection = match self.selections.pending_anchor() {
3249 Some(Selection { start, end, .. }) => start != end,
3250 None => false,
3251 };
3252
3253 pending_nonempty_selection
3254 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3255 }
3256
3257 pub fn has_pending_selection(&self) -> bool {
3258 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3259 }
3260
3261 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3262 if self.clear_expanded_diff_hunks(cx) {
3263 cx.notify();
3264 return;
3265 }
3266 if self.dismiss_menus_and_popups(true, cx) {
3267 return;
3268 }
3269
3270 if self.mode == EditorMode::Full
3271 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3272 {
3273 return;
3274 }
3275
3276 cx.propagate();
3277 }
3278
3279 pub fn dismiss_menus_and_popups(
3280 &mut self,
3281 should_report_inline_completion_event: bool,
3282 cx: &mut ViewContext<Self>,
3283 ) -> bool {
3284 if self.take_rename(false, cx).is_some() {
3285 return true;
3286 }
3287
3288 if hide_hover(self, cx) {
3289 return true;
3290 }
3291
3292 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3293 return true;
3294 }
3295
3296 if self.hide_context_menu(cx).is_some() {
3297 return true;
3298 }
3299
3300 if self.mouse_context_menu.take().is_some() {
3301 return true;
3302 }
3303
3304 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3305 return true;
3306 }
3307
3308 if self.snippet_stack.pop().is_some() {
3309 return true;
3310 }
3311
3312 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3313 self.dismiss_diagnostics(cx);
3314 return true;
3315 }
3316
3317 false
3318 }
3319
3320 fn linked_editing_ranges_for(
3321 &self,
3322 selection: Range<text::Anchor>,
3323 cx: &AppContext,
3324 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3325 if self.linked_edit_ranges.is_empty() {
3326 return None;
3327 }
3328 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3329 selection.end.buffer_id.and_then(|end_buffer_id| {
3330 if selection.start.buffer_id != Some(end_buffer_id) {
3331 return None;
3332 }
3333 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3334 let snapshot = buffer.read(cx).snapshot();
3335 self.linked_edit_ranges
3336 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3337 .map(|ranges| (ranges, snapshot, buffer))
3338 })?;
3339 use text::ToOffset as TO;
3340 // find offset from the start of current range to current cursor position
3341 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3342
3343 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3344 let start_difference = start_offset - start_byte_offset;
3345 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3346 let end_difference = end_offset - start_byte_offset;
3347 // Current range has associated linked ranges.
3348 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3349 for range in linked_ranges.iter() {
3350 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3351 let end_offset = start_offset + end_difference;
3352 let start_offset = start_offset + start_difference;
3353 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3354 continue;
3355 }
3356 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3357 if s.start.buffer_id != selection.start.buffer_id
3358 || s.end.buffer_id != selection.end.buffer_id
3359 {
3360 return false;
3361 }
3362 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3363 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3364 }) {
3365 continue;
3366 }
3367 let start = buffer_snapshot.anchor_after(start_offset);
3368 let end = buffer_snapshot.anchor_after(end_offset);
3369 linked_edits
3370 .entry(buffer.clone())
3371 .or_default()
3372 .push(start..end);
3373 }
3374 Some(linked_edits)
3375 }
3376
3377 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3378 let text: Arc<str> = text.into();
3379
3380 if self.read_only(cx) {
3381 return;
3382 }
3383
3384 let selections = self.selections.all_adjusted(cx);
3385 let mut bracket_inserted = false;
3386 let mut edits = Vec::new();
3387 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3388 let mut new_selections = Vec::with_capacity(selections.len());
3389 let mut new_autoclose_regions = Vec::new();
3390 let snapshot = self.buffer.read(cx).read(cx);
3391
3392 for (selection, autoclose_region) in
3393 self.selections_with_autoclose_regions(selections, &snapshot)
3394 {
3395 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3396 // Determine if the inserted text matches the opening or closing
3397 // bracket of any of this language's bracket pairs.
3398 let mut bracket_pair = None;
3399 let mut is_bracket_pair_start = false;
3400 let mut is_bracket_pair_end = false;
3401 if !text.is_empty() {
3402 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3403 // and they are removing the character that triggered IME popup.
3404 for (pair, enabled) in scope.brackets() {
3405 if !pair.close && !pair.surround {
3406 continue;
3407 }
3408
3409 if enabled && pair.start.ends_with(text.as_ref()) {
3410 let prefix_len = pair.start.len() - text.len();
3411 let preceding_text_matches_prefix = prefix_len == 0
3412 || (selection.start.column >= (prefix_len as u32)
3413 && snapshot.contains_str_at(
3414 Point::new(
3415 selection.start.row,
3416 selection.start.column - (prefix_len as u32),
3417 ),
3418 &pair.start[..prefix_len],
3419 ));
3420 if preceding_text_matches_prefix {
3421 bracket_pair = Some(pair.clone());
3422 is_bracket_pair_start = true;
3423 break;
3424 }
3425 }
3426 if pair.end.as_str() == text.as_ref() {
3427 bracket_pair = Some(pair.clone());
3428 is_bracket_pair_end = true;
3429 break;
3430 }
3431 }
3432 }
3433
3434 if let Some(bracket_pair) = bracket_pair {
3435 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3436 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3437 let auto_surround =
3438 self.use_auto_surround && snapshot_settings.use_auto_surround;
3439 if selection.is_empty() {
3440 if is_bracket_pair_start {
3441 // If the inserted text is a suffix of an opening bracket and the
3442 // selection is preceded by the rest of the opening bracket, then
3443 // insert the closing bracket.
3444 let following_text_allows_autoclose = snapshot
3445 .chars_at(selection.start)
3446 .next()
3447 .map_or(true, |c| scope.should_autoclose_before(c));
3448
3449 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3450 && bracket_pair.start.len() == 1
3451 {
3452 let target = bracket_pair.start.chars().next().unwrap();
3453 let current_line_count = snapshot
3454 .reversed_chars_at(selection.start)
3455 .take_while(|&c| c != '\n')
3456 .filter(|&c| c == target)
3457 .count();
3458 current_line_count % 2 == 1
3459 } else {
3460 false
3461 };
3462
3463 if autoclose
3464 && bracket_pair.close
3465 && following_text_allows_autoclose
3466 && !is_closing_quote
3467 {
3468 let anchor = snapshot.anchor_before(selection.end);
3469 new_selections.push((selection.map(|_| anchor), text.len()));
3470 new_autoclose_regions.push((
3471 anchor,
3472 text.len(),
3473 selection.id,
3474 bracket_pair.clone(),
3475 ));
3476 edits.push((
3477 selection.range(),
3478 format!("{}{}", text, bracket_pair.end).into(),
3479 ));
3480 bracket_inserted = true;
3481 continue;
3482 }
3483 }
3484
3485 if let Some(region) = autoclose_region {
3486 // If the selection is followed by an auto-inserted closing bracket,
3487 // then don't insert that closing bracket again; just move the selection
3488 // past the closing bracket.
3489 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3490 && text.as_ref() == region.pair.end.as_str();
3491 if should_skip {
3492 let anchor = snapshot.anchor_after(selection.end);
3493 new_selections
3494 .push((selection.map(|_| anchor), region.pair.end.len()));
3495 continue;
3496 }
3497 }
3498
3499 let always_treat_brackets_as_autoclosed = snapshot
3500 .settings_at(selection.start, cx)
3501 .always_treat_brackets_as_autoclosed;
3502 if always_treat_brackets_as_autoclosed
3503 && is_bracket_pair_end
3504 && snapshot.contains_str_at(selection.end, text.as_ref())
3505 {
3506 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3507 // and the inserted text is a closing bracket and the selection is followed
3508 // by the closing bracket then move the selection past the closing bracket.
3509 let anchor = snapshot.anchor_after(selection.end);
3510 new_selections.push((selection.map(|_| anchor), text.len()));
3511 continue;
3512 }
3513 }
3514 // If an opening bracket is 1 character long and is typed while
3515 // text is selected, then surround that text with the bracket pair.
3516 else if auto_surround
3517 && bracket_pair.surround
3518 && is_bracket_pair_start
3519 && bracket_pair.start.chars().count() == 1
3520 {
3521 edits.push((selection.start..selection.start, text.clone()));
3522 edits.push((
3523 selection.end..selection.end,
3524 bracket_pair.end.as_str().into(),
3525 ));
3526 bracket_inserted = true;
3527 new_selections.push((
3528 Selection {
3529 id: selection.id,
3530 start: snapshot.anchor_after(selection.start),
3531 end: snapshot.anchor_before(selection.end),
3532 reversed: selection.reversed,
3533 goal: selection.goal,
3534 },
3535 0,
3536 ));
3537 continue;
3538 }
3539 }
3540 }
3541
3542 if self.auto_replace_emoji_shortcode
3543 && selection.is_empty()
3544 && text.as_ref().ends_with(':')
3545 {
3546 if let Some(possible_emoji_short_code) =
3547 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3548 {
3549 if !possible_emoji_short_code.is_empty() {
3550 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3551 let emoji_shortcode_start = Point::new(
3552 selection.start.row,
3553 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3554 );
3555
3556 // Remove shortcode from buffer
3557 edits.push((
3558 emoji_shortcode_start..selection.start,
3559 "".to_string().into(),
3560 ));
3561 new_selections.push((
3562 Selection {
3563 id: selection.id,
3564 start: snapshot.anchor_after(emoji_shortcode_start),
3565 end: snapshot.anchor_before(selection.start),
3566 reversed: selection.reversed,
3567 goal: selection.goal,
3568 },
3569 0,
3570 ));
3571
3572 // Insert emoji
3573 let selection_start_anchor = snapshot.anchor_after(selection.start);
3574 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3575 edits.push((selection.start..selection.end, emoji.to_string().into()));
3576
3577 continue;
3578 }
3579 }
3580 }
3581 }
3582
3583 // If not handling any auto-close operation, then just replace the selected
3584 // text with the given input and move the selection to the end of the
3585 // newly inserted text.
3586 let anchor = snapshot.anchor_after(selection.end);
3587 if !self.linked_edit_ranges.is_empty() {
3588 let start_anchor = snapshot.anchor_before(selection.start);
3589
3590 let is_word_char = text.chars().next().map_or(true, |char| {
3591 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3592 classifier.is_word(char)
3593 });
3594
3595 if is_word_char {
3596 if let Some(ranges) = self
3597 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3598 {
3599 for (buffer, edits) in ranges {
3600 linked_edits
3601 .entry(buffer.clone())
3602 .or_default()
3603 .extend(edits.into_iter().map(|range| (range, text.clone())));
3604 }
3605 }
3606 }
3607 }
3608
3609 new_selections.push((selection.map(|_| anchor), 0));
3610 edits.push((selection.start..selection.end, text.clone()));
3611 }
3612
3613 drop(snapshot);
3614
3615 self.transact(cx, |this, cx| {
3616 this.buffer.update(cx, |buffer, cx| {
3617 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3618 });
3619 for (buffer, edits) in linked_edits {
3620 buffer.update(cx, |buffer, cx| {
3621 let snapshot = buffer.snapshot();
3622 let edits = edits
3623 .into_iter()
3624 .map(|(range, text)| {
3625 use text::ToPoint as TP;
3626 let end_point = TP::to_point(&range.end, &snapshot);
3627 let start_point = TP::to_point(&range.start, &snapshot);
3628 (start_point..end_point, text)
3629 })
3630 .sorted_by_key(|(range, _)| range.start)
3631 .collect::<Vec<_>>();
3632 buffer.edit(edits, None, cx);
3633 })
3634 }
3635 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3636 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3637 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3638 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3639 .zip(new_selection_deltas)
3640 .map(|(selection, delta)| Selection {
3641 id: selection.id,
3642 start: selection.start + delta,
3643 end: selection.end + delta,
3644 reversed: selection.reversed,
3645 goal: SelectionGoal::None,
3646 })
3647 .collect::<Vec<_>>();
3648
3649 let mut i = 0;
3650 for (position, delta, selection_id, pair) in new_autoclose_regions {
3651 let position = position.to_offset(&map.buffer_snapshot) + delta;
3652 let start = map.buffer_snapshot.anchor_before(position);
3653 let end = map.buffer_snapshot.anchor_after(position);
3654 while let Some(existing_state) = this.autoclose_regions.get(i) {
3655 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3656 Ordering::Less => i += 1,
3657 Ordering::Greater => break,
3658 Ordering::Equal => {
3659 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3660 Ordering::Less => i += 1,
3661 Ordering::Equal => break,
3662 Ordering::Greater => break,
3663 }
3664 }
3665 }
3666 }
3667 this.autoclose_regions.insert(
3668 i,
3669 AutocloseRegion {
3670 selection_id,
3671 range: start..end,
3672 pair,
3673 },
3674 );
3675 }
3676
3677 let had_active_inline_completion = this.has_active_inline_completion(cx);
3678 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3679 s.select(new_selections)
3680 });
3681
3682 if !bracket_inserted {
3683 if let Some(on_type_format_task) =
3684 this.trigger_on_type_formatting(text.to_string(), cx)
3685 {
3686 on_type_format_task.detach_and_log_err(cx);
3687 }
3688 }
3689
3690 let editor_settings = EditorSettings::get_global(cx);
3691 if bracket_inserted
3692 && (editor_settings.auto_signature_help
3693 || editor_settings.show_signature_help_after_edits)
3694 {
3695 this.show_signature_help(&ShowSignatureHelp, cx);
3696 }
3697
3698 let trigger_in_words = !had_active_inline_completion;
3699 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3700 linked_editing_ranges::refresh_linked_ranges(this, cx);
3701 this.refresh_inline_completion(true, false, cx);
3702 });
3703 }
3704
3705 fn find_possible_emoji_shortcode_at_position(
3706 snapshot: &MultiBufferSnapshot,
3707 position: Point,
3708 ) -> Option<String> {
3709 let mut chars = Vec::new();
3710 let mut found_colon = false;
3711 for char in snapshot.reversed_chars_at(position).take(100) {
3712 // Found a possible emoji shortcode in the middle of the buffer
3713 if found_colon {
3714 if char.is_whitespace() {
3715 chars.reverse();
3716 return Some(chars.iter().collect());
3717 }
3718 // If the previous character is not a whitespace, we are in the middle of a word
3719 // and we only want to complete the shortcode if the word is made up of other emojis
3720 let mut containing_word = String::new();
3721 for ch in snapshot
3722 .reversed_chars_at(position)
3723 .skip(chars.len() + 1)
3724 .take(100)
3725 {
3726 if ch.is_whitespace() {
3727 break;
3728 }
3729 containing_word.push(ch);
3730 }
3731 let containing_word = containing_word.chars().rev().collect::<String>();
3732 if util::word_consists_of_emojis(containing_word.as_str()) {
3733 chars.reverse();
3734 return Some(chars.iter().collect());
3735 }
3736 }
3737
3738 if char.is_whitespace() || !char.is_ascii() {
3739 return None;
3740 }
3741 if char == ':' {
3742 found_colon = true;
3743 } else {
3744 chars.push(char);
3745 }
3746 }
3747 // Found a possible emoji shortcode at the beginning of the buffer
3748 chars.reverse();
3749 Some(chars.iter().collect())
3750 }
3751
3752 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3753 self.transact(cx, |this, cx| {
3754 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3755 let selections = this.selections.all::<usize>(cx);
3756 let multi_buffer = this.buffer.read(cx);
3757 let buffer = multi_buffer.snapshot(cx);
3758 selections
3759 .iter()
3760 .map(|selection| {
3761 let start_point = selection.start.to_point(&buffer);
3762 let mut indent =
3763 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3764 indent.len = cmp::min(indent.len, start_point.column);
3765 let start = selection.start;
3766 let end = selection.end;
3767 let selection_is_empty = start == end;
3768 let language_scope = buffer.language_scope_at(start);
3769 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3770 &language_scope
3771 {
3772 let leading_whitespace_len = buffer
3773 .reversed_chars_at(start)
3774 .take_while(|c| c.is_whitespace() && *c != '\n')
3775 .map(|c| c.len_utf8())
3776 .sum::<usize>();
3777
3778 let trailing_whitespace_len = buffer
3779 .chars_at(end)
3780 .take_while(|c| c.is_whitespace() && *c != '\n')
3781 .map(|c| c.len_utf8())
3782 .sum::<usize>();
3783
3784 let insert_extra_newline =
3785 language.brackets().any(|(pair, enabled)| {
3786 let pair_start = pair.start.trim_end();
3787 let pair_end = pair.end.trim_start();
3788
3789 enabled
3790 && pair.newline
3791 && buffer.contains_str_at(
3792 end + trailing_whitespace_len,
3793 pair_end,
3794 )
3795 && buffer.contains_str_at(
3796 (start - leading_whitespace_len)
3797 .saturating_sub(pair_start.len()),
3798 pair_start,
3799 )
3800 });
3801
3802 // Comment extension on newline is allowed only for cursor selections
3803 let comment_delimiter = maybe!({
3804 if !selection_is_empty {
3805 return None;
3806 }
3807
3808 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3809 return None;
3810 }
3811
3812 let delimiters = language.line_comment_prefixes();
3813 let max_len_of_delimiter =
3814 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3815 let (snapshot, range) =
3816 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3817
3818 let mut index_of_first_non_whitespace = 0;
3819 let comment_candidate = snapshot
3820 .chars_for_range(range)
3821 .skip_while(|c| {
3822 let should_skip = c.is_whitespace();
3823 if should_skip {
3824 index_of_first_non_whitespace += 1;
3825 }
3826 should_skip
3827 })
3828 .take(max_len_of_delimiter)
3829 .collect::<String>();
3830 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3831 comment_candidate.starts_with(comment_prefix.as_ref())
3832 })?;
3833 let cursor_is_placed_after_comment_marker =
3834 index_of_first_non_whitespace + comment_prefix.len()
3835 <= start_point.column as usize;
3836 if cursor_is_placed_after_comment_marker {
3837 Some(comment_prefix.clone())
3838 } else {
3839 None
3840 }
3841 });
3842 (comment_delimiter, insert_extra_newline)
3843 } else {
3844 (None, false)
3845 };
3846
3847 let capacity_for_delimiter = comment_delimiter
3848 .as_deref()
3849 .map(str::len)
3850 .unwrap_or_default();
3851 let mut new_text =
3852 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3853 new_text.push('\n');
3854 new_text.extend(indent.chars());
3855 if let Some(delimiter) = &comment_delimiter {
3856 new_text.push_str(delimiter);
3857 }
3858 if insert_extra_newline {
3859 new_text = new_text.repeat(2);
3860 }
3861
3862 let anchor = buffer.anchor_after(end);
3863 let new_selection = selection.map(|_| anchor);
3864 (
3865 (start..end, new_text),
3866 (insert_extra_newline, new_selection),
3867 )
3868 })
3869 .unzip()
3870 };
3871
3872 this.edit_with_autoindent(edits, cx);
3873 let buffer = this.buffer.read(cx).snapshot(cx);
3874 let new_selections = selection_fixup_info
3875 .into_iter()
3876 .map(|(extra_newline_inserted, new_selection)| {
3877 let mut cursor = new_selection.end.to_point(&buffer);
3878 if extra_newline_inserted {
3879 cursor.row -= 1;
3880 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3881 }
3882 new_selection.map(|_| cursor)
3883 })
3884 .collect();
3885
3886 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3887 this.refresh_inline_completion(true, false, cx);
3888 });
3889 }
3890
3891 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3892 let buffer = self.buffer.read(cx);
3893 let snapshot = buffer.snapshot(cx);
3894
3895 let mut edits = Vec::new();
3896 let mut rows = Vec::new();
3897
3898 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3899 let cursor = selection.head();
3900 let row = cursor.row;
3901
3902 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3903
3904 let newline = "\n".to_string();
3905 edits.push((start_of_line..start_of_line, newline));
3906
3907 rows.push(row + rows_inserted as u32);
3908 }
3909
3910 self.transact(cx, |editor, cx| {
3911 editor.edit(edits, cx);
3912
3913 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3914 let mut index = 0;
3915 s.move_cursors_with(|map, _, _| {
3916 let row = rows[index];
3917 index += 1;
3918
3919 let point = Point::new(row, 0);
3920 let boundary = map.next_line_boundary(point).1;
3921 let clipped = map.clip_point(boundary, Bias::Left);
3922
3923 (clipped, SelectionGoal::None)
3924 });
3925 });
3926
3927 let mut indent_edits = Vec::new();
3928 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3929 for row in rows {
3930 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3931 for (row, indent) in indents {
3932 if indent.len == 0 {
3933 continue;
3934 }
3935
3936 let text = match indent.kind {
3937 IndentKind::Space => " ".repeat(indent.len as usize),
3938 IndentKind::Tab => "\t".repeat(indent.len as usize),
3939 };
3940 let point = Point::new(row.0, 0);
3941 indent_edits.push((point..point, text));
3942 }
3943 }
3944 editor.edit(indent_edits, cx);
3945 });
3946 }
3947
3948 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3949 let buffer = self.buffer.read(cx);
3950 let snapshot = buffer.snapshot(cx);
3951
3952 let mut edits = Vec::new();
3953 let mut rows = Vec::new();
3954 let mut rows_inserted = 0;
3955
3956 for selection in self.selections.all_adjusted(cx) {
3957 let cursor = selection.head();
3958 let row = cursor.row;
3959
3960 let point = Point::new(row + 1, 0);
3961 let start_of_line = snapshot.clip_point(point, Bias::Left);
3962
3963 let newline = "\n".to_string();
3964 edits.push((start_of_line..start_of_line, newline));
3965
3966 rows_inserted += 1;
3967 rows.push(row + rows_inserted);
3968 }
3969
3970 self.transact(cx, |editor, cx| {
3971 editor.edit(edits, cx);
3972
3973 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3974 let mut index = 0;
3975 s.move_cursors_with(|map, _, _| {
3976 let row = rows[index];
3977 index += 1;
3978
3979 let point = Point::new(row, 0);
3980 let boundary = map.next_line_boundary(point).1;
3981 let clipped = map.clip_point(boundary, Bias::Left);
3982
3983 (clipped, SelectionGoal::None)
3984 });
3985 });
3986
3987 let mut indent_edits = Vec::new();
3988 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3989 for row in rows {
3990 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3991 for (row, indent) in indents {
3992 if indent.len == 0 {
3993 continue;
3994 }
3995
3996 let text = match indent.kind {
3997 IndentKind::Space => " ".repeat(indent.len as usize),
3998 IndentKind::Tab => "\t".repeat(indent.len as usize),
3999 };
4000 let point = Point::new(row.0, 0);
4001 indent_edits.push((point..point, text));
4002 }
4003 }
4004 editor.edit(indent_edits, cx);
4005 });
4006 }
4007
4008 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
4009 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
4010 original_indent_columns: Vec::new(),
4011 });
4012 self.insert_with_autoindent_mode(text, autoindent, cx);
4013 }
4014
4015 fn insert_with_autoindent_mode(
4016 &mut self,
4017 text: &str,
4018 autoindent_mode: Option<AutoindentMode>,
4019 cx: &mut ViewContext<Self>,
4020 ) {
4021 if self.read_only(cx) {
4022 return;
4023 }
4024
4025 let text: Arc<str> = text.into();
4026 self.transact(cx, |this, cx| {
4027 let old_selections = this.selections.all_adjusted(cx);
4028 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
4029 let anchors = {
4030 let snapshot = buffer.read(cx);
4031 old_selections
4032 .iter()
4033 .map(|s| {
4034 let anchor = snapshot.anchor_after(s.head());
4035 s.map(|_| anchor)
4036 })
4037 .collect::<Vec<_>>()
4038 };
4039 buffer.edit(
4040 old_selections
4041 .iter()
4042 .map(|s| (s.start..s.end, text.clone())),
4043 autoindent_mode,
4044 cx,
4045 );
4046 anchors
4047 });
4048
4049 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4050 s.select_anchors(selection_anchors);
4051 })
4052 });
4053 }
4054
4055 fn trigger_completion_on_input(
4056 &mut self,
4057 text: &str,
4058 trigger_in_words: bool,
4059 cx: &mut ViewContext<Self>,
4060 ) {
4061 if self.is_completion_trigger(text, trigger_in_words, cx) {
4062 self.show_completions(
4063 &ShowCompletions {
4064 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4065 },
4066 cx,
4067 );
4068 } else {
4069 self.hide_context_menu(cx);
4070 }
4071 }
4072
4073 fn is_completion_trigger(
4074 &self,
4075 text: &str,
4076 trigger_in_words: bool,
4077 cx: &mut ViewContext<Self>,
4078 ) -> bool {
4079 let position = self.selections.newest_anchor().head();
4080 let multibuffer = self.buffer.read(cx);
4081 let Some(buffer) = position
4082 .buffer_id
4083 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4084 else {
4085 return false;
4086 };
4087
4088 if let Some(completion_provider) = &self.completion_provider {
4089 completion_provider.is_completion_trigger(
4090 &buffer,
4091 position.text_anchor,
4092 text,
4093 trigger_in_words,
4094 cx,
4095 )
4096 } else {
4097 false
4098 }
4099 }
4100
4101 /// If any empty selections is touching the start of its innermost containing autoclose
4102 /// region, expand it to select the brackets.
4103 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4104 let selections = self.selections.all::<usize>(cx);
4105 let buffer = self.buffer.read(cx).read(cx);
4106 let new_selections = self
4107 .selections_with_autoclose_regions(selections, &buffer)
4108 .map(|(mut selection, region)| {
4109 if !selection.is_empty() {
4110 return selection;
4111 }
4112
4113 if let Some(region) = region {
4114 let mut range = region.range.to_offset(&buffer);
4115 if selection.start == range.start && range.start >= region.pair.start.len() {
4116 range.start -= region.pair.start.len();
4117 if buffer.contains_str_at(range.start, ®ion.pair.start)
4118 && buffer.contains_str_at(range.end, ®ion.pair.end)
4119 {
4120 range.end += region.pair.end.len();
4121 selection.start = range.start;
4122 selection.end = range.end;
4123
4124 return selection;
4125 }
4126 }
4127 }
4128
4129 let always_treat_brackets_as_autoclosed = buffer
4130 .settings_at(selection.start, cx)
4131 .always_treat_brackets_as_autoclosed;
4132
4133 if !always_treat_brackets_as_autoclosed {
4134 return selection;
4135 }
4136
4137 if let Some(scope) = buffer.language_scope_at(selection.start) {
4138 for (pair, enabled) in scope.brackets() {
4139 if !enabled || !pair.close {
4140 continue;
4141 }
4142
4143 if buffer.contains_str_at(selection.start, &pair.end) {
4144 let pair_start_len = pair.start.len();
4145 if buffer.contains_str_at(
4146 selection.start.saturating_sub(pair_start_len),
4147 &pair.start,
4148 ) {
4149 selection.start -= pair_start_len;
4150 selection.end += pair.end.len();
4151
4152 return selection;
4153 }
4154 }
4155 }
4156 }
4157
4158 selection
4159 })
4160 .collect();
4161
4162 drop(buffer);
4163 self.change_selections(None, cx, |selections| selections.select(new_selections));
4164 }
4165
4166 /// Iterate the given selections, and for each one, find the smallest surrounding
4167 /// autoclose region. This uses the ordering of the selections and the autoclose
4168 /// regions to avoid repeated comparisons.
4169 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4170 &'a self,
4171 selections: impl IntoIterator<Item = Selection<D>>,
4172 buffer: &'a MultiBufferSnapshot,
4173 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4174 let mut i = 0;
4175 let mut regions = self.autoclose_regions.as_slice();
4176 selections.into_iter().map(move |selection| {
4177 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4178
4179 let mut enclosing = None;
4180 while let Some(pair_state) = regions.get(i) {
4181 if pair_state.range.end.to_offset(buffer) < range.start {
4182 regions = ®ions[i + 1..];
4183 i = 0;
4184 } else if pair_state.range.start.to_offset(buffer) > range.end {
4185 break;
4186 } else {
4187 if pair_state.selection_id == selection.id {
4188 enclosing = Some(pair_state);
4189 }
4190 i += 1;
4191 }
4192 }
4193
4194 (selection, enclosing)
4195 })
4196 }
4197
4198 /// Remove any autoclose regions that no longer contain their selection.
4199 fn invalidate_autoclose_regions(
4200 &mut self,
4201 mut selections: &[Selection<Anchor>],
4202 buffer: &MultiBufferSnapshot,
4203 ) {
4204 self.autoclose_regions.retain(|state| {
4205 let mut i = 0;
4206 while let Some(selection) = selections.get(i) {
4207 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4208 selections = &selections[1..];
4209 continue;
4210 }
4211 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4212 break;
4213 }
4214 if selection.id == state.selection_id {
4215 return true;
4216 } else {
4217 i += 1;
4218 }
4219 }
4220 false
4221 });
4222 }
4223
4224 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4225 let offset = position.to_offset(buffer);
4226 let (word_range, kind) = buffer.surrounding_word(offset, true);
4227 if offset > word_range.start && kind == Some(CharKind::Word) {
4228 Some(
4229 buffer
4230 .text_for_range(word_range.start..offset)
4231 .collect::<String>(),
4232 )
4233 } else {
4234 None
4235 }
4236 }
4237
4238 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4239 self.refresh_inlay_hints(
4240 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4241 cx,
4242 );
4243 }
4244
4245 pub fn inlay_hints_enabled(&self) -> bool {
4246 self.inlay_hint_cache.enabled
4247 }
4248
4249 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4250 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4251 return;
4252 }
4253
4254 let reason_description = reason.description();
4255 let ignore_debounce = matches!(
4256 reason,
4257 InlayHintRefreshReason::SettingsChange(_)
4258 | InlayHintRefreshReason::Toggle(_)
4259 | InlayHintRefreshReason::ExcerptsRemoved(_)
4260 );
4261 let (invalidate_cache, required_languages) = match reason {
4262 InlayHintRefreshReason::Toggle(enabled) => {
4263 self.inlay_hint_cache.enabled = enabled;
4264 if enabled {
4265 (InvalidationStrategy::RefreshRequested, None)
4266 } else {
4267 self.inlay_hint_cache.clear();
4268 self.splice_inlays(
4269 self.visible_inlay_hints(cx)
4270 .iter()
4271 .map(|inlay| inlay.id)
4272 .collect(),
4273 Vec::new(),
4274 cx,
4275 );
4276 return;
4277 }
4278 }
4279 InlayHintRefreshReason::SettingsChange(new_settings) => {
4280 match self.inlay_hint_cache.update_settings(
4281 &self.buffer,
4282 new_settings,
4283 self.visible_inlay_hints(cx),
4284 cx,
4285 ) {
4286 ControlFlow::Break(Some(InlaySplice {
4287 to_remove,
4288 to_insert,
4289 })) => {
4290 self.splice_inlays(to_remove, to_insert, cx);
4291 return;
4292 }
4293 ControlFlow::Break(None) => return,
4294 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4295 }
4296 }
4297 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4298 if let Some(InlaySplice {
4299 to_remove,
4300 to_insert,
4301 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4302 {
4303 self.splice_inlays(to_remove, to_insert, cx);
4304 }
4305 return;
4306 }
4307 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4308 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4309 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4310 }
4311 InlayHintRefreshReason::RefreshRequested => {
4312 (InvalidationStrategy::RefreshRequested, None)
4313 }
4314 };
4315
4316 if let Some(InlaySplice {
4317 to_remove,
4318 to_insert,
4319 }) = self.inlay_hint_cache.spawn_hint_refresh(
4320 reason_description,
4321 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4322 invalidate_cache,
4323 ignore_debounce,
4324 cx,
4325 ) {
4326 self.splice_inlays(to_remove, to_insert, cx);
4327 }
4328 }
4329
4330 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4331 self.display_map
4332 .read(cx)
4333 .current_inlays()
4334 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4335 .cloned()
4336 .collect()
4337 }
4338
4339 pub fn excerpts_for_inlay_hints_query(
4340 &self,
4341 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4342 cx: &mut ViewContext<Editor>,
4343 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4344 let Some(project) = self.project.as_ref() else {
4345 return HashMap::default();
4346 };
4347 let project = project.read(cx);
4348 let multi_buffer = self.buffer().read(cx);
4349 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4350 let multi_buffer_visible_start = self
4351 .scroll_manager
4352 .anchor()
4353 .anchor
4354 .to_point(&multi_buffer_snapshot);
4355 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4356 multi_buffer_visible_start
4357 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4358 Bias::Left,
4359 );
4360 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4361 multi_buffer
4362 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4363 .into_iter()
4364 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4365 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4366 let buffer = buffer_handle.read(cx);
4367 let buffer_file = project::File::from_dyn(buffer.file())?;
4368 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4369 let worktree_entry = buffer_worktree
4370 .read(cx)
4371 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4372 if worktree_entry.is_ignored {
4373 return None;
4374 }
4375
4376 let language = buffer.language()?;
4377 if let Some(restrict_to_languages) = restrict_to_languages {
4378 if !restrict_to_languages.contains(language) {
4379 return None;
4380 }
4381 }
4382 Some((
4383 excerpt_id,
4384 (
4385 buffer_handle,
4386 buffer.version().clone(),
4387 excerpt_visible_range,
4388 ),
4389 ))
4390 })
4391 .collect()
4392 }
4393
4394 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4395 TextLayoutDetails {
4396 text_system: cx.text_system().clone(),
4397 editor_style: self.style.clone().unwrap(),
4398 rem_size: cx.rem_size(),
4399 scroll_anchor: self.scroll_manager.anchor(),
4400 visible_rows: self.visible_line_count(),
4401 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4402 }
4403 }
4404
4405 fn splice_inlays(
4406 &self,
4407 to_remove: Vec<InlayId>,
4408 to_insert: Vec<Inlay>,
4409 cx: &mut ViewContext<Self>,
4410 ) {
4411 self.display_map.update(cx, |display_map, cx| {
4412 display_map.splice_inlays(to_remove, to_insert, cx);
4413 });
4414 cx.notify();
4415 }
4416
4417 fn trigger_on_type_formatting(
4418 &self,
4419 input: String,
4420 cx: &mut ViewContext<Self>,
4421 ) -> Option<Task<Result<()>>> {
4422 if input.len() != 1 {
4423 return None;
4424 }
4425
4426 let project = self.project.as_ref()?;
4427 let position = self.selections.newest_anchor().head();
4428 let (buffer, buffer_position) = self
4429 .buffer
4430 .read(cx)
4431 .text_anchor_for_position(position, cx)?;
4432
4433 let settings = language_settings::language_settings(
4434 buffer
4435 .read(cx)
4436 .language_at(buffer_position)
4437 .map(|l| l.name()),
4438 buffer.read(cx).file(),
4439 cx,
4440 );
4441 if !settings.use_on_type_format {
4442 return None;
4443 }
4444
4445 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4446 // hence we do LSP request & edit on host side only — add formats to host's history.
4447 let push_to_lsp_host_history = true;
4448 // If this is not the host, append its history with new edits.
4449 let push_to_client_history = project.read(cx).is_via_collab();
4450
4451 let on_type_formatting = project.update(cx, |project, cx| {
4452 project.on_type_format(
4453 buffer.clone(),
4454 buffer_position,
4455 input,
4456 push_to_lsp_host_history,
4457 cx,
4458 )
4459 });
4460 Some(cx.spawn(|editor, mut cx| async move {
4461 if let Some(transaction) = on_type_formatting.await? {
4462 if push_to_client_history {
4463 buffer
4464 .update(&mut cx, |buffer, _| {
4465 buffer.push_transaction(transaction, Instant::now());
4466 })
4467 .ok();
4468 }
4469 editor.update(&mut cx, |editor, cx| {
4470 editor.refresh_document_highlights(cx);
4471 })?;
4472 }
4473 Ok(())
4474 }))
4475 }
4476
4477 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4478 if self.pending_rename.is_some() {
4479 return;
4480 }
4481
4482 let Some(provider) = self.completion_provider.as_ref() else {
4483 return;
4484 };
4485
4486 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4487 return;
4488 }
4489
4490 let position = self.selections.newest_anchor().head();
4491 let (buffer, buffer_position) =
4492 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4493 output
4494 } else {
4495 return;
4496 };
4497
4498 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4499 let is_followup_invoke = {
4500 let context_menu_state = self.context_menu.read();
4501 matches!(
4502 context_menu_state.deref(),
4503 Some(ContextMenu::Completions(_))
4504 )
4505 };
4506 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4507 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4508 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4509 CompletionTriggerKind::TRIGGER_CHARACTER
4510 }
4511
4512 _ => CompletionTriggerKind::INVOKED,
4513 };
4514 let completion_context = CompletionContext {
4515 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4516 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4517 Some(String::from(trigger))
4518 } else {
4519 None
4520 }
4521 }),
4522 trigger_kind,
4523 };
4524 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4525 let sort_completions = provider.sort_completions();
4526
4527 let id = post_inc(&mut self.next_completion_id);
4528 let task = cx.spawn(|this, mut cx| {
4529 async move {
4530 this.update(&mut cx, |this, _| {
4531 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4532 })?;
4533 let completions = completions.await.log_err();
4534 let menu = if let Some(completions) = completions {
4535 let mut menu = CompletionsMenu::new(
4536 id,
4537 sort_completions,
4538 position,
4539 buffer.clone(),
4540 completions.into(),
4541 );
4542 menu.filter(query.as_deref(), cx.background_executor().clone())
4543 .await;
4544
4545 if menu.matches.is_empty() {
4546 None
4547 } else {
4548 this.update(&mut cx, |editor, cx| {
4549 let completions = menu.completions.clone();
4550 let matches = menu.matches.clone();
4551
4552 let delay_ms = EditorSettings::get_global(cx)
4553 .completion_documentation_secondary_query_debounce;
4554 let delay = Duration::from_millis(delay_ms);
4555 editor
4556 .completion_documentation_pre_resolve_debounce
4557 .fire_new(delay, cx, |editor, cx| {
4558 CompletionsMenu::pre_resolve_completion_documentation(
4559 buffer,
4560 completions,
4561 matches,
4562 editor,
4563 cx,
4564 )
4565 });
4566 })
4567 .ok();
4568 Some(menu)
4569 }
4570 } else {
4571 None
4572 };
4573
4574 this.update(&mut cx, |this, cx| {
4575 let mut context_menu = this.context_menu.write();
4576 match context_menu.as_ref() {
4577 None => {}
4578
4579 Some(ContextMenu::Completions(prev_menu)) => {
4580 if prev_menu.id > id {
4581 return;
4582 }
4583 }
4584
4585 _ => return,
4586 }
4587
4588 if this.focus_handle.is_focused(cx) && menu.is_some() {
4589 let menu = menu.unwrap();
4590 *context_menu = Some(ContextMenu::Completions(menu));
4591 drop(context_menu);
4592 this.discard_inline_completion(false, cx);
4593 cx.notify();
4594 } else if this.completion_tasks.len() <= 1 {
4595 // If there are no more completion tasks and the last menu was
4596 // empty, we should hide it. If it was already hidden, we should
4597 // also show the copilot completion when available.
4598 drop(context_menu);
4599 if this.hide_context_menu(cx).is_none() {
4600 this.update_visible_inline_completion(cx);
4601 }
4602 }
4603 })?;
4604
4605 Ok::<_, anyhow::Error>(())
4606 }
4607 .log_err()
4608 });
4609
4610 self.completion_tasks.push((id, task));
4611 }
4612
4613 pub fn confirm_completion(
4614 &mut self,
4615 action: &ConfirmCompletion,
4616 cx: &mut ViewContext<Self>,
4617 ) -> Option<Task<Result<()>>> {
4618 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4619 }
4620
4621 pub fn compose_completion(
4622 &mut self,
4623 action: &ComposeCompletion,
4624 cx: &mut ViewContext<Self>,
4625 ) -> Option<Task<Result<()>>> {
4626 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4627 }
4628
4629 fn do_completion(
4630 &mut self,
4631 item_ix: Option<usize>,
4632 intent: CompletionIntent,
4633 cx: &mut ViewContext<Editor>,
4634 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4635 use language::ToOffset as _;
4636
4637 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4638 menu
4639 } else {
4640 return None;
4641 };
4642
4643 let mat = completions_menu
4644 .matches
4645 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4646 let buffer_handle = completions_menu.buffer;
4647 let completions = completions_menu.completions.read();
4648 let completion = completions.get(mat.candidate_id)?;
4649 cx.stop_propagation();
4650
4651 let snippet;
4652 let text;
4653
4654 if completion.is_snippet() {
4655 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4656 text = snippet.as_ref().unwrap().text.clone();
4657 } else {
4658 snippet = None;
4659 text = completion.new_text.clone();
4660 };
4661 let selections = self.selections.all::<usize>(cx);
4662 let buffer = buffer_handle.read(cx);
4663 let old_range = completion.old_range.to_offset(buffer);
4664 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4665
4666 let newest_selection = self.selections.newest_anchor();
4667 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4668 return None;
4669 }
4670
4671 let lookbehind = newest_selection
4672 .start
4673 .text_anchor
4674 .to_offset(buffer)
4675 .saturating_sub(old_range.start);
4676 let lookahead = old_range
4677 .end
4678 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4679 let mut common_prefix_len = old_text
4680 .bytes()
4681 .zip(text.bytes())
4682 .take_while(|(a, b)| a == b)
4683 .count();
4684
4685 let snapshot = self.buffer.read(cx).snapshot(cx);
4686 let mut range_to_replace: Option<Range<isize>> = None;
4687 let mut ranges = Vec::new();
4688 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4689 for selection in &selections {
4690 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4691 let start = selection.start.saturating_sub(lookbehind);
4692 let end = selection.end + lookahead;
4693 if selection.id == newest_selection.id {
4694 range_to_replace = Some(
4695 ((start + common_prefix_len) as isize - selection.start as isize)
4696 ..(end as isize - selection.start as isize),
4697 );
4698 }
4699 ranges.push(start + common_prefix_len..end);
4700 } else {
4701 common_prefix_len = 0;
4702 ranges.clear();
4703 ranges.extend(selections.iter().map(|s| {
4704 if s.id == newest_selection.id {
4705 range_to_replace = Some(
4706 old_range.start.to_offset_utf16(&snapshot).0 as isize
4707 - selection.start as isize
4708 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4709 - selection.start as isize,
4710 );
4711 old_range.clone()
4712 } else {
4713 s.start..s.end
4714 }
4715 }));
4716 break;
4717 }
4718 if !self.linked_edit_ranges.is_empty() {
4719 let start_anchor = snapshot.anchor_before(selection.head());
4720 let end_anchor = snapshot.anchor_after(selection.tail());
4721 if let Some(ranges) = self
4722 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4723 {
4724 for (buffer, edits) in ranges {
4725 linked_edits.entry(buffer.clone()).or_default().extend(
4726 edits
4727 .into_iter()
4728 .map(|range| (range, text[common_prefix_len..].to_owned())),
4729 );
4730 }
4731 }
4732 }
4733 }
4734 let text = &text[common_prefix_len..];
4735
4736 cx.emit(EditorEvent::InputHandled {
4737 utf16_range_to_replace: range_to_replace,
4738 text: text.into(),
4739 });
4740
4741 self.transact(cx, |this, cx| {
4742 if let Some(mut snippet) = snippet {
4743 snippet.text = text.to_string();
4744 for tabstop in snippet
4745 .tabstops
4746 .iter_mut()
4747 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4748 {
4749 tabstop.start -= common_prefix_len as isize;
4750 tabstop.end -= common_prefix_len as isize;
4751 }
4752
4753 this.insert_snippet(&ranges, snippet, cx).log_err();
4754 } else {
4755 this.buffer.update(cx, |buffer, cx| {
4756 buffer.edit(
4757 ranges.iter().map(|range| (range.clone(), text)),
4758 this.autoindent_mode.clone(),
4759 cx,
4760 );
4761 });
4762 }
4763 for (buffer, edits) in linked_edits {
4764 buffer.update(cx, |buffer, cx| {
4765 let snapshot = buffer.snapshot();
4766 let edits = edits
4767 .into_iter()
4768 .map(|(range, text)| {
4769 use text::ToPoint as TP;
4770 let end_point = TP::to_point(&range.end, &snapshot);
4771 let start_point = TP::to_point(&range.start, &snapshot);
4772 (start_point..end_point, text)
4773 })
4774 .sorted_by_key(|(range, _)| range.start)
4775 .collect::<Vec<_>>();
4776 buffer.edit(edits, None, cx);
4777 })
4778 }
4779
4780 this.refresh_inline_completion(true, false, cx);
4781 });
4782
4783 let show_new_completions_on_confirm = completion
4784 .confirm
4785 .as_ref()
4786 .map_or(false, |confirm| confirm(intent, cx));
4787 if show_new_completions_on_confirm {
4788 self.show_completions(&ShowCompletions { trigger: None }, cx);
4789 }
4790
4791 let provider = self.completion_provider.as_ref()?;
4792 let apply_edits = provider.apply_additional_edits_for_completion(
4793 buffer_handle,
4794 completion.clone(),
4795 true,
4796 cx,
4797 );
4798
4799 let editor_settings = EditorSettings::get_global(cx);
4800 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4801 // After the code completion is finished, users often want to know what signatures are needed.
4802 // so we should automatically call signature_help
4803 self.show_signature_help(&ShowSignatureHelp, cx);
4804 }
4805
4806 Some(cx.foreground_executor().spawn(async move {
4807 apply_edits.await?;
4808 Ok(())
4809 }))
4810 }
4811
4812 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4813 let mut context_menu = self.context_menu.write();
4814 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4815 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4816 // Toggle if we're selecting the same one
4817 *context_menu = None;
4818 cx.notify();
4819 return;
4820 } else {
4821 // Otherwise, clear it and start a new one
4822 *context_menu = None;
4823 cx.notify();
4824 }
4825 }
4826 drop(context_menu);
4827 let snapshot = self.snapshot(cx);
4828 let deployed_from_indicator = action.deployed_from_indicator;
4829 let mut task = self.code_actions_task.take();
4830 let action = action.clone();
4831 cx.spawn(|editor, mut cx| async move {
4832 while let Some(prev_task) = task {
4833 prev_task.await.log_err();
4834 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4835 }
4836
4837 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4838 if editor.focus_handle.is_focused(cx) {
4839 let multibuffer_point = action
4840 .deployed_from_indicator
4841 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4842 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4843 let (buffer, buffer_row) = snapshot
4844 .buffer_snapshot
4845 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4846 .and_then(|(buffer_snapshot, range)| {
4847 editor
4848 .buffer
4849 .read(cx)
4850 .buffer(buffer_snapshot.remote_id())
4851 .map(|buffer| (buffer, range.start.row))
4852 })?;
4853 let (_, code_actions) = editor
4854 .available_code_actions
4855 .clone()
4856 .and_then(|(location, code_actions)| {
4857 let snapshot = location.buffer.read(cx).snapshot();
4858 let point_range = location.range.to_point(&snapshot);
4859 let point_range = point_range.start.row..=point_range.end.row;
4860 if point_range.contains(&buffer_row) {
4861 Some((location, code_actions))
4862 } else {
4863 None
4864 }
4865 })
4866 .unzip();
4867 let buffer_id = buffer.read(cx).remote_id();
4868 let tasks = editor
4869 .tasks
4870 .get(&(buffer_id, buffer_row))
4871 .map(|t| Arc::new(t.to_owned()));
4872 if tasks.is_none() && code_actions.is_none() {
4873 return None;
4874 }
4875
4876 editor.completion_tasks.clear();
4877 editor.discard_inline_completion(false, cx);
4878 let task_context =
4879 tasks
4880 .as_ref()
4881 .zip(editor.project.clone())
4882 .map(|(tasks, project)| {
4883 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4884 });
4885
4886 Some(cx.spawn(|editor, mut cx| async move {
4887 let task_context = match task_context {
4888 Some(task_context) => task_context.await,
4889 None => None,
4890 };
4891 let resolved_tasks =
4892 tasks.zip(task_context).map(|(tasks, task_context)| {
4893 Arc::new(ResolvedTasks {
4894 templates: tasks.resolve(&task_context).collect(),
4895 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4896 multibuffer_point.row,
4897 tasks.column,
4898 )),
4899 })
4900 });
4901 let spawn_straight_away = resolved_tasks
4902 .as_ref()
4903 .map_or(false, |tasks| tasks.templates.len() == 1)
4904 && code_actions
4905 .as_ref()
4906 .map_or(true, |actions| actions.is_empty());
4907 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4908 *editor.context_menu.write() =
4909 Some(ContextMenu::CodeActions(CodeActionsMenu {
4910 buffer,
4911 actions: CodeActionContents {
4912 tasks: resolved_tasks,
4913 actions: code_actions,
4914 },
4915 selected_item: Default::default(),
4916 scroll_handle: UniformListScrollHandle::default(),
4917 deployed_from_indicator,
4918 }));
4919 if spawn_straight_away {
4920 if let Some(task) = editor.confirm_code_action(
4921 &ConfirmCodeAction { item_ix: Some(0) },
4922 cx,
4923 ) {
4924 cx.notify();
4925 return task;
4926 }
4927 }
4928 cx.notify();
4929 Task::ready(Ok(()))
4930 }) {
4931 task.await
4932 } else {
4933 Ok(())
4934 }
4935 }))
4936 } else {
4937 Some(Task::ready(Ok(())))
4938 }
4939 })?;
4940 if let Some(task) = spawned_test_task {
4941 task.await?;
4942 }
4943
4944 Ok::<_, anyhow::Error>(())
4945 })
4946 .detach_and_log_err(cx);
4947 }
4948
4949 pub fn confirm_code_action(
4950 &mut self,
4951 action: &ConfirmCodeAction,
4952 cx: &mut ViewContext<Self>,
4953 ) -> Option<Task<Result<()>>> {
4954 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4955 menu
4956 } else {
4957 return None;
4958 };
4959 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4960 let action = actions_menu.actions.get(action_ix)?;
4961 let title = action.label();
4962 let buffer = actions_menu.buffer;
4963 let workspace = self.workspace()?;
4964
4965 match action {
4966 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4967 workspace.update(cx, |workspace, cx| {
4968 workspace::tasks::schedule_resolved_task(
4969 workspace,
4970 task_source_kind,
4971 resolved_task,
4972 false,
4973 cx,
4974 );
4975
4976 Some(Task::ready(Ok(())))
4977 })
4978 }
4979 CodeActionsItem::CodeAction {
4980 excerpt_id,
4981 action,
4982 provider,
4983 } => {
4984 let apply_code_action =
4985 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4986 let workspace = workspace.downgrade();
4987 Some(cx.spawn(|editor, cx| async move {
4988 let project_transaction = apply_code_action.await?;
4989 Self::open_project_transaction(
4990 &editor,
4991 workspace,
4992 project_transaction,
4993 title,
4994 cx,
4995 )
4996 .await
4997 }))
4998 }
4999 }
5000 }
5001
5002 pub async fn open_project_transaction(
5003 this: &WeakView<Editor>,
5004 workspace: WeakView<Workspace>,
5005 transaction: ProjectTransaction,
5006 title: String,
5007 mut cx: AsyncWindowContext,
5008 ) -> Result<()> {
5009 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
5010 cx.update(|cx| {
5011 entries.sort_unstable_by_key(|(buffer, _)| {
5012 buffer.read(cx).file().map(|f| f.path().clone())
5013 });
5014 })?;
5015
5016 // If the project transaction's edits are all contained within this editor, then
5017 // avoid opening a new editor to display them.
5018
5019 if let Some((buffer, transaction)) = entries.first() {
5020 if entries.len() == 1 {
5021 let excerpt = this.update(&mut cx, |editor, cx| {
5022 editor
5023 .buffer()
5024 .read(cx)
5025 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
5026 })?;
5027 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
5028 if excerpted_buffer == *buffer {
5029 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
5030 let excerpt_range = excerpt_range.to_offset(buffer);
5031 buffer
5032 .edited_ranges_for_transaction::<usize>(transaction)
5033 .all(|range| {
5034 excerpt_range.start <= range.start
5035 && excerpt_range.end >= range.end
5036 })
5037 })?;
5038
5039 if all_edits_within_excerpt {
5040 return Ok(());
5041 }
5042 }
5043 }
5044 }
5045 } else {
5046 return Ok(());
5047 }
5048
5049 let mut ranges_to_highlight = Vec::new();
5050 let excerpt_buffer = cx.new_model(|cx| {
5051 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
5052 for (buffer_handle, transaction) in &entries {
5053 let buffer = buffer_handle.read(cx);
5054 ranges_to_highlight.extend(
5055 multibuffer.push_excerpts_with_context_lines(
5056 buffer_handle.clone(),
5057 buffer
5058 .edited_ranges_for_transaction::<usize>(transaction)
5059 .collect(),
5060 DEFAULT_MULTIBUFFER_CONTEXT,
5061 cx,
5062 ),
5063 );
5064 }
5065 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5066 multibuffer
5067 })?;
5068
5069 workspace.update(&mut cx, |workspace, cx| {
5070 let project = workspace.project().clone();
5071 let editor =
5072 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5073 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5074 editor.update(cx, |editor, cx| {
5075 editor.highlight_background::<Self>(
5076 &ranges_to_highlight,
5077 |theme| theme.editor_highlighted_line_background,
5078 cx,
5079 );
5080 });
5081 })?;
5082
5083 Ok(())
5084 }
5085
5086 pub fn clear_code_action_providers(&mut self) {
5087 self.code_action_providers.clear();
5088 self.available_code_actions.take();
5089 }
5090
5091 pub fn push_code_action_provider(
5092 &mut self,
5093 provider: Arc<dyn CodeActionProvider>,
5094 cx: &mut ViewContext<Self>,
5095 ) {
5096 self.code_action_providers.push(provider);
5097 self.refresh_code_actions(cx);
5098 }
5099
5100 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5101 let buffer = self.buffer.read(cx);
5102 let newest_selection = self.selections.newest_anchor().clone();
5103 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5104 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5105 if start_buffer != end_buffer {
5106 return None;
5107 }
5108
5109 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5110 cx.background_executor()
5111 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5112 .await;
5113
5114 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5115 let providers = this.code_action_providers.clone();
5116 let tasks = this
5117 .code_action_providers
5118 .iter()
5119 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5120 .collect::<Vec<_>>();
5121 (providers, tasks)
5122 })?;
5123
5124 let mut actions = Vec::new();
5125 for (provider, provider_actions) in
5126 providers.into_iter().zip(future::join_all(tasks).await)
5127 {
5128 if let Some(provider_actions) = provider_actions.log_err() {
5129 actions.extend(provider_actions.into_iter().map(|action| {
5130 AvailableCodeAction {
5131 excerpt_id: newest_selection.start.excerpt_id,
5132 action,
5133 provider: provider.clone(),
5134 }
5135 }));
5136 }
5137 }
5138
5139 this.update(&mut cx, |this, cx| {
5140 this.available_code_actions = if actions.is_empty() {
5141 None
5142 } else {
5143 Some((
5144 Location {
5145 buffer: start_buffer,
5146 range: start..end,
5147 },
5148 actions.into(),
5149 ))
5150 };
5151 cx.notify();
5152 })
5153 }));
5154 None
5155 }
5156
5157 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5158 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5159 self.show_git_blame_inline = false;
5160
5161 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5162 cx.background_executor().timer(delay).await;
5163
5164 this.update(&mut cx, |this, cx| {
5165 this.show_git_blame_inline = true;
5166 cx.notify();
5167 })
5168 .log_err();
5169 }));
5170 }
5171 }
5172
5173 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5174 if self.pending_rename.is_some() {
5175 return None;
5176 }
5177
5178 let provider = self.semantics_provider.clone()?;
5179 let buffer = self.buffer.read(cx);
5180 let newest_selection = self.selections.newest_anchor().clone();
5181 let cursor_position = newest_selection.head();
5182 let (cursor_buffer, cursor_buffer_position) =
5183 buffer.text_anchor_for_position(cursor_position, cx)?;
5184 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5185 if cursor_buffer != tail_buffer {
5186 return None;
5187 }
5188
5189 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5190 cx.background_executor()
5191 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5192 .await;
5193
5194 let highlights = if let Some(highlights) = cx
5195 .update(|cx| {
5196 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5197 })
5198 .ok()
5199 .flatten()
5200 {
5201 highlights.await.log_err()
5202 } else {
5203 None
5204 };
5205
5206 if let Some(highlights) = highlights {
5207 this.update(&mut cx, |this, cx| {
5208 if this.pending_rename.is_some() {
5209 return;
5210 }
5211
5212 let buffer_id = cursor_position.buffer_id;
5213 let buffer = this.buffer.read(cx);
5214 if !buffer
5215 .text_anchor_for_position(cursor_position, cx)
5216 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5217 {
5218 return;
5219 }
5220
5221 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5222 let mut write_ranges = Vec::new();
5223 let mut read_ranges = Vec::new();
5224 for highlight in highlights {
5225 for (excerpt_id, excerpt_range) in
5226 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5227 {
5228 let start = highlight
5229 .range
5230 .start
5231 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5232 let end = highlight
5233 .range
5234 .end
5235 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5236 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5237 continue;
5238 }
5239
5240 let range = Anchor {
5241 buffer_id,
5242 excerpt_id,
5243 text_anchor: start,
5244 }..Anchor {
5245 buffer_id,
5246 excerpt_id,
5247 text_anchor: end,
5248 };
5249 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5250 write_ranges.push(range);
5251 } else {
5252 read_ranges.push(range);
5253 }
5254 }
5255 }
5256
5257 this.highlight_background::<DocumentHighlightRead>(
5258 &read_ranges,
5259 |theme| theme.editor_document_highlight_read_background,
5260 cx,
5261 );
5262 this.highlight_background::<DocumentHighlightWrite>(
5263 &write_ranges,
5264 |theme| theme.editor_document_highlight_write_background,
5265 cx,
5266 );
5267 cx.notify();
5268 })
5269 .log_err();
5270 }
5271 }));
5272 None
5273 }
5274
5275 pub fn refresh_inline_completion(
5276 &mut self,
5277 debounce: bool,
5278 user_requested: bool,
5279 cx: &mut ViewContext<Self>,
5280 ) -> Option<()> {
5281 let provider = self.inline_completion_provider()?;
5282 let cursor = self.selections.newest_anchor().head();
5283 let (buffer, cursor_buffer_position) =
5284 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5285
5286 if !user_requested
5287 && (!self.enable_inline_completions
5288 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5289 {
5290 self.discard_inline_completion(false, cx);
5291 return None;
5292 }
5293
5294 self.update_visible_inline_completion(cx);
5295 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5296 Some(())
5297 }
5298
5299 fn cycle_inline_completion(
5300 &mut self,
5301 direction: Direction,
5302 cx: &mut ViewContext<Self>,
5303 ) -> Option<()> {
5304 let provider = self.inline_completion_provider()?;
5305 let cursor = self.selections.newest_anchor().head();
5306 let (buffer, cursor_buffer_position) =
5307 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5308 if !self.enable_inline_completions
5309 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5310 {
5311 return None;
5312 }
5313
5314 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5315 self.update_visible_inline_completion(cx);
5316
5317 Some(())
5318 }
5319
5320 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5321 if !self.has_active_inline_completion(cx) {
5322 self.refresh_inline_completion(false, true, cx);
5323 return;
5324 }
5325
5326 self.update_visible_inline_completion(cx);
5327 }
5328
5329 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5330 self.show_cursor_names(cx);
5331 }
5332
5333 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5334 self.show_cursor_names = true;
5335 cx.notify();
5336 cx.spawn(|this, mut cx| async move {
5337 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5338 this.update(&mut cx, |this, cx| {
5339 this.show_cursor_names = false;
5340 cx.notify()
5341 })
5342 .ok()
5343 })
5344 .detach();
5345 }
5346
5347 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5348 if self.has_active_inline_completion(cx) {
5349 self.cycle_inline_completion(Direction::Next, cx);
5350 } else {
5351 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5352 if is_copilot_disabled {
5353 cx.propagate();
5354 }
5355 }
5356 }
5357
5358 pub fn previous_inline_completion(
5359 &mut self,
5360 _: &PreviousInlineCompletion,
5361 cx: &mut ViewContext<Self>,
5362 ) {
5363 if self.has_active_inline_completion(cx) {
5364 self.cycle_inline_completion(Direction::Prev, cx);
5365 } else {
5366 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5367 if is_copilot_disabled {
5368 cx.propagate();
5369 }
5370 }
5371 }
5372
5373 pub fn accept_inline_completion(
5374 &mut self,
5375 _: &AcceptInlineCompletion,
5376 cx: &mut ViewContext<Self>,
5377 ) {
5378 let Some(completion) = self.take_active_inline_completion(cx) else {
5379 return;
5380 };
5381 if let Some(provider) = self.inline_completion_provider() {
5382 provider.accept(cx);
5383 }
5384
5385 cx.emit(EditorEvent::InputHandled {
5386 utf16_range_to_replace: None,
5387 text: completion.text.to_string().into(),
5388 });
5389
5390 if let Some(range) = completion.delete_range {
5391 self.change_selections(None, cx, |s| s.select_ranges([range]))
5392 }
5393 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5394 self.refresh_inline_completion(true, true, cx);
5395 cx.notify();
5396 }
5397
5398 pub fn accept_partial_inline_completion(
5399 &mut self,
5400 _: &AcceptPartialInlineCompletion,
5401 cx: &mut ViewContext<Self>,
5402 ) {
5403 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5404 if let Some(completion) = self.take_active_inline_completion(cx) {
5405 let mut partial_completion = completion
5406 .text
5407 .chars()
5408 .by_ref()
5409 .take_while(|c| c.is_alphabetic())
5410 .collect::<String>();
5411 if partial_completion.is_empty() {
5412 partial_completion = completion
5413 .text
5414 .chars()
5415 .by_ref()
5416 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5417 .collect::<String>();
5418 }
5419
5420 cx.emit(EditorEvent::InputHandled {
5421 utf16_range_to_replace: None,
5422 text: partial_completion.clone().into(),
5423 });
5424
5425 if let Some(range) = completion.delete_range {
5426 self.change_selections(None, cx, |s| s.select_ranges([range]))
5427 }
5428 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5429
5430 self.refresh_inline_completion(true, true, cx);
5431 cx.notify();
5432 }
5433 }
5434 }
5435
5436 fn discard_inline_completion(
5437 &mut self,
5438 should_report_inline_completion_event: bool,
5439 cx: &mut ViewContext<Self>,
5440 ) -> bool {
5441 if let Some(provider) = self.inline_completion_provider() {
5442 provider.discard(should_report_inline_completion_event, cx);
5443 }
5444
5445 self.take_active_inline_completion(cx).is_some()
5446 }
5447
5448 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5449 if let Some(completion) = self.active_inline_completion.as_ref() {
5450 let buffer = self.buffer.read(cx).read(cx);
5451 completion.position.is_valid(&buffer)
5452 } else {
5453 false
5454 }
5455 }
5456
5457 fn take_active_inline_completion(
5458 &mut self,
5459 cx: &mut ViewContext<Self>,
5460 ) -> Option<CompletionState> {
5461 let completion = self.active_inline_completion.take()?;
5462 let render_inlay_ids = completion.render_inlay_ids.clone();
5463 self.display_map.update(cx, |map, cx| {
5464 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5465 });
5466 let buffer = self.buffer.read(cx).read(cx);
5467
5468 if completion.position.is_valid(&buffer) {
5469 Some(completion)
5470 } else {
5471 None
5472 }
5473 }
5474
5475 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5476 let selection = self.selections.newest_anchor();
5477 let cursor = selection.head();
5478
5479 let excerpt_id = cursor.excerpt_id;
5480
5481 if self.context_menu.read().is_none()
5482 && self.completion_tasks.is_empty()
5483 && selection.start == selection.end
5484 {
5485 if let Some(provider) = self.inline_completion_provider() {
5486 if let Some((buffer, cursor_buffer_position)) =
5487 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5488 {
5489 if let Some(proposal) =
5490 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5491 {
5492 let mut to_remove = Vec::new();
5493 if let Some(completion) = self.active_inline_completion.take() {
5494 to_remove.extend(completion.render_inlay_ids.iter());
5495 }
5496
5497 let to_add = proposal
5498 .inlays
5499 .iter()
5500 .filter_map(|inlay| {
5501 let snapshot = self.buffer.read(cx).snapshot(cx);
5502 let id = post_inc(&mut self.next_inlay_id);
5503 match inlay {
5504 InlayProposal::Hint(position, hint) => {
5505 let position =
5506 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5507 Some(Inlay::hint(id, position, hint))
5508 }
5509 InlayProposal::Suggestion(position, text) => {
5510 let position =
5511 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5512 Some(Inlay::suggestion(id, position, text.clone()))
5513 }
5514 }
5515 })
5516 .collect_vec();
5517
5518 self.active_inline_completion = Some(CompletionState {
5519 position: cursor,
5520 text: proposal.text,
5521 delete_range: proposal.delete_range.and_then(|range| {
5522 let snapshot = self.buffer.read(cx).snapshot(cx);
5523 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5524 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5525 Some(start?..end?)
5526 }),
5527 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5528 });
5529
5530 self.display_map
5531 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5532
5533 cx.notify();
5534 return;
5535 }
5536 }
5537 }
5538 }
5539
5540 self.discard_inline_completion(false, cx);
5541 }
5542
5543 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5544 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5545 }
5546
5547 fn render_code_actions_indicator(
5548 &self,
5549 _style: &EditorStyle,
5550 row: DisplayRow,
5551 is_active: bool,
5552 cx: &mut ViewContext<Self>,
5553 ) -> Option<IconButton> {
5554 if self.available_code_actions.is_some() {
5555 Some(
5556 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5557 .shape(ui::IconButtonShape::Square)
5558 .icon_size(IconSize::XSmall)
5559 .icon_color(Color::Muted)
5560 .selected(is_active)
5561 .tooltip({
5562 let focus_handle = self.focus_handle.clone();
5563 move |cx| {
5564 Tooltip::for_action_in(
5565 "Toggle Code Actions",
5566 &ToggleCodeActions {
5567 deployed_from_indicator: None,
5568 },
5569 &focus_handle,
5570 cx,
5571 )
5572 }
5573 })
5574 .on_click(cx.listener(move |editor, _e, cx| {
5575 editor.focus(cx);
5576 editor.toggle_code_actions(
5577 &ToggleCodeActions {
5578 deployed_from_indicator: Some(row),
5579 },
5580 cx,
5581 );
5582 })),
5583 )
5584 } else {
5585 None
5586 }
5587 }
5588
5589 fn clear_tasks(&mut self) {
5590 self.tasks.clear()
5591 }
5592
5593 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5594 if self.tasks.insert(key, value).is_some() {
5595 // This case should hopefully be rare, but just in case...
5596 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5597 }
5598 }
5599
5600 fn build_tasks_context(
5601 project: &Model<Project>,
5602 buffer: &Model<Buffer>,
5603 buffer_row: u32,
5604 tasks: &Arc<RunnableTasks>,
5605 cx: &mut ViewContext<Self>,
5606 ) -> Task<Option<task::TaskContext>> {
5607 let position = Point::new(buffer_row, tasks.column);
5608 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5609 let location = Location {
5610 buffer: buffer.clone(),
5611 range: range_start..range_start,
5612 };
5613 // Fill in the environmental variables from the tree-sitter captures
5614 let mut captured_task_variables = TaskVariables::default();
5615 for (capture_name, value) in tasks.extra_variables.clone() {
5616 captured_task_variables.insert(
5617 task::VariableName::Custom(capture_name.into()),
5618 value.clone(),
5619 );
5620 }
5621 project.update(cx, |project, cx| {
5622 project.task_store().update(cx, |task_store, cx| {
5623 task_store.task_context_for_location(captured_task_variables, location, cx)
5624 })
5625 })
5626 }
5627
5628 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5629 let Some((workspace, _)) = self.workspace.clone() else {
5630 return;
5631 };
5632 let Some(project) = self.project.clone() else {
5633 return;
5634 };
5635
5636 // Try to find a closest, enclosing node using tree-sitter that has a
5637 // task
5638 let Some((buffer, buffer_row, tasks)) = self
5639 .find_enclosing_node_task(cx)
5640 // Or find the task that's closest in row-distance.
5641 .or_else(|| self.find_closest_task(cx))
5642 else {
5643 return;
5644 };
5645
5646 let reveal_strategy = action.reveal;
5647 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5648 cx.spawn(|_, mut cx| async move {
5649 let context = task_context.await?;
5650 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5651
5652 let resolved = resolved_task.resolved.as_mut()?;
5653 resolved.reveal = reveal_strategy;
5654
5655 workspace
5656 .update(&mut cx, |workspace, cx| {
5657 workspace::tasks::schedule_resolved_task(
5658 workspace,
5659 task_source_kind,
5660 resolved_task,
5661 false,
5662 cx,
5663 );
5664 })
5665 .ok()
5666 })
5667 .detach();
5668 }
5669
5670 fn find_closest_task(
5671 &mut self,
5672 cx: &mut ViewContext<Self>,
5673 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5674 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5675
5676 let ((buffer_id, row), tasks) = self
5677 .tasks
5678 .iter()
5679 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5680
5681 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5682 let tasks = Arc::new(tasks.to_owned());
5683 Some((buffer, *row, tasks))
5684 }
5685
5686 fn find_enclosing_node_task(
5687 &mut self,
5688 cx: &mut ViewContext<Self>,
5689 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5690 let snapshot = self.buffer.read(cx).snapshot(cx);
5691 let offset = self.selections.newest::<usize>(cx).head();
5692 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5693 let buffer_id = excerpt.buffer().remote_id();
5694
5695 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5696 let mut cursor = layer.node().walk();
5697
5698 while cursor.goto_first_child_for_byte(offset).is_some() {
5699 if cursor.node().end_byte() == offset {
5700 cursor.goto_next_sibling();
5701 }
5702 }
5703
5704 // Ascend to the smallest ancestor that contains the range and has a task.
5705 loop {
5706 let node = cursor.node();
5707 let node_range = node.byte_range();
5708 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5709
5710 // Check if this node contains our offset
5711 if node_range.start <= offset && node_range.end >= offset {
5712 // If it contains offset, check for task
5713 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5714 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5715 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5716 }
5717 }
5718
5719 if !cursor.goto_parent() {
5720 break;
5721 }
5722 }
5723 None
5724 }
5725
5726 fn render_run_indicator(
5727 &self,
5728 _style: &EditorStyle,
5729 is_active: bool,
5730 row: DisplayRow,
5731 cx: &mut ViewContext<Self>,
5732 ) -> IconButton {
5733 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5734 .shape(ui::IconButtonShape::Square)
5735 .icon_size(IconSize::XSmall)
5736 .icon_color(Color::Muted)
5737 .selected(is_active)
5738 .on_click(cx.listener(move |editor, _e, cx| {
5739 editor.focus(cx);
5740 editor.toggle_code_actions(
5741 &ToggleCodeActions {
5742 deployed_from_indicator: Some(row),
5743 },
5744 cx,
5745 );
5746 }))
5747 }
5748
5749 pub fn context_menu_visible(&self) -> bool {
5750 self.context_menu
5751 .read()
5752 .as_ref()
5753 .map_or(false, |menu| menu.visible())
5754 }
5755
5756 fn render_context_menu(
5757 &self,
5758 cursor_position: DisplayPoint,
5759 style: &EditorStyle,
5760 max_height: Pixels,
5761 cx: &mut ViewContext<Editor>,
5762 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5763 self.context_menu.read().as_ref().map(|menu| {
5764 menu.render(
5765 cursor_position,
5766 style,
5767 max_height,
5768 self.workspace.as_ref().map(|(w, _)| w.clone()),
5769 cx,
5770 )
5771 })
5772 }
5773
5774 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5775 cx.notify();
5776 self.completion_tasks.clear();
5777 let context_menu = self.context_menu.write().take();
5778 if context_menu.is_some() {
5779 self.update_visible_inline_completion(cx);
5780 }
5781 context_menu
5782 }
5783
5784 fn show_snippet_choices(
5785 &mut self,
5786 choices: &Vec<String>,
5787 selection: Range<Anchor>,
5788 cx: &mut ViewContext<Self>,
5789 ) {
5790 if selection.start.buffer_id.is_none() {
5791 return;
5792 }
5793 let buffer_id = selection.start.buffer_id.unwrap();
5794 let buffer = self.buffer().read(cx).buffer(buffer_id);
5795 let id = post_inc(&mut self.next_completion_id);
5796
5797 if let Some(buffer) = buffer {
5798 *self.context_menu.write() = Some(ContextMenu::Completions(
5799 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5800 .suppress_documentation_resolution(),
5801 ));
5802 }
5803 }
5804
5805 pub fn insert_snippet(
5806 &mut self,
5807 insertion_ranges: &[Range<usize>],
5808 snippet: Snippet,
5809 cx: &mut ViewContext<Self>,
5810 ) -> Result<()> {
5811 struct Tabstop<T> {
5812 is_end_tabstop: bool,
5813 ranges: Vec<Range<T>>,
5814 choices: Option<Vec<String>>,
5815 }
5816
5817 let tabstops = self.buffer.update(cx, |buffer, cx| {
5818 let snippet_text: Arc<str> = snippet.text.clone().into();
5819 buffer.edit(
5820 insertion_ranges
5821 .iter()
5822 .cloned()
5823 .map(|range| (range, snippet_text.clone())),
5824 Some(AutoindentMode::EachLine),
5825 cx,
5826 );
5827
5828 let snapshot = &*buffer.read(cx);
5829 let snippet = &snippet;
5830 snippet
5831 .tabstops
5832 .iter()
5833 .map(|tabstop| {
5834 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5835 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5836 });
5837 let mut tabstop_ranges = tabstop
5838 .ranges
5839 .iter()
5840 .flat_map(|tabstop_range| {
5841 let mut delta = 0_isize;
5842 insertion_ranges.iter().map(move |insertion_range| {
5843 let insertion_start = insertion_range.start as isize + delta;
5844 delta +=
5845 snippet.text.len() as isize - insertion_range.len() as isize;
5846
5847 let start = ((insertion_start + tabstop_range.start) as usize)
5848 .min(snapshot.len());
5849 let end = ((insertion_start + tabstop_range.end) as usize)
5850 .min(snapshot.len());
5851 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5852 })
5853 })
5854 .collect::<Vec<_>>();
5855 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5856
5857 Tabstop {
5858 is_end_tabstop,
5859 ranges: tabstop_ranges,
5860 choices: tabstop.choices.clone(),
5861 }
5862 })
5863 .collect::<Vec<_>>()
5864 });
5865 if let Some(tabstop) = tabstops.first() {
5866 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5867 s.select_ranges(tabstop.ranges.iter().cloned());
5868 });
5869
5870 if let Some(choices) = &tabstop.choices {
5871 if let Some(selection) = tabstop.ranges.first() {
5872 self.show_snippet_choices(choices, selection.clone(), cx)
5873 }
5874 }
5875
5876 // If we're already at the last tabstop and it's at the end of the snippet,
5877 // we're done, we don't need to keep the state around.
5878 if !tabstop.is_end_tabstop {
5879 let choices = tabstops
5880 .iter()
5881 .map(|tabstop| tabstop.choices.clone())
5882 .collect();
5883
5884 let ranges = tabstops
5885 .into_iter()
5886 .map(|tabstop| tabstop.ranges)
5887 .collect::<Vec<_>>();
5888
5889 self.snippet_stack.push(SnippetState {
5890 active_index: 0,
5891 ranges,
5892 choices,
5893 });
5894 }
5895
5896 // Check whether the just-entered snippet ends with an auto-closable bracket.
5897 if self.autoclose_regions.is_empty() {
5898 let snapshot = self.buffer.read(cx).snapshot(cx);
5899 for selection in &mut self.selections.all::<Point>(cx) {
5900 let selection_head = selection.head();
5901 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5902 continue;
5903 };
5904
5905 let mut bracket_pair = None;
5906 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5907 let prev_chars = snapshot
5908 .reversed_chars_at(selection_head)
5909 .collect::<String>();
5910 for (pair, enabled) in scope.brackets() {
5911 if enabled
5912 && pair.close
5913 && prev_chars.starts_with(pair.start.as_str())
5914 && next_chars.starts_with(pair.end.as_str())
5915 {
5916 bracket_pair = Some(pair.clone());
5917 break;
5918 }
5919 }
5920 if let Some(pair) = bracket_pair {
5921 let start = snapshot.anchor_after(selection_head);
5922 let end = snapshot.anchor_after(selection_head);
5923 self.autoclose_regions.push(AutocloseRegion {
5924 selection_id: selection.id,
5925 range: start..end,
5926 pair,
5927 });
5928 }
5929 }
5930 }
5931 }
5932 Ok(())
5933 }
5934
5935 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5936 self.move_to_snippet_tabstop(Bias::Right, cx)
5937 }
5938
5939 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5940 self.move_to_snippet_tabstop(Bias::Left, cx)
5941 }
5942
5943 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5944 if let Some(mut snippet) = self.snippet_stack.pop() {
5945 match bias {
5946 Bias::Left => {
5947 if snippet.active_index > 0 {
5948 snippet.active_index -= 1;
5949 } else {
5950 self.snippet_stack.push(snippet);
5951 return false;
5952 }
5953 }
5954 Bias::Right => {
5955 if snippet.active_index + 1 < snippet.ranges.len() {
5956 snippet.active_index += 1;
5957 } else {
5958 self.snippet_stack.push(snippet);
5959 return false;
5960 }
5961 }
5962 }
5963 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5965 s.select_anchor_ranges(current_ranges.iter().cloned())
5966 });
5967
5968 if let Some(choices) = &snippet.choices[snippet.active_index] {
5969 if let Some(selection) = current_ranges.first() {
5970 self.show_snippet_choices(&choices, selection.clone(), cx);
5971 }
5972 }
5973
5974 // If snippet state is not at the last tabstop, push it back on the stack
5975 if snippet.active_index + 1 < snippet.ranges.len() {
5976 self.snippet_stack.push(snippet);
5977 }
5978 return true;
5979 }
5980 }
5981
5982 false
5983 }
5984
5985 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5986 self.transact(cx, |this, cx| {
5987 this.select_all(&SelectAll, cx);
5988 this.insert("", cx);
5989 });
5990 }
5991
5992 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5993 self.transact(cx, |this, cx| {
5994 this.select_autoclose_pair(cx);
5995 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5996 if !this.linked_edit_ranges.is_empty() {
5997 let selections = this.selections.all::<MultiBufferPoint>(cx);
5998 let snapshot = this.buffer.read(cx).snapshot(cx);
5999
6000 for selection in selections.iter() {
6001 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6002 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6003 if selection_start.buffer_id != selection_end.buffer_id {
6004 continue;
6005 }
6006 if let Some(ranges) =
6007 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6008 {
6009 for (buffer, entries) in ranges {
6010 linked_ranges.entry(buffer).or_default().extend(entries);
6011 }
6012 }
6013 }
6014 }
6015
6016 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6017 if !this.selections.line_mode {
6018 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6019 for selection in &mut selections {
6020 if selection.is_empty() {
6021 let old_head = selection.head();
6022 let mut new_head =
6023 movement::left(&display_map, old_head.to_display_point(&display_map))
6024 .to_point(&display_map);
6025 if let Some((buffer, line_buffer_range)) = display_map
6026 .buffer_snapshot
6027 .buffer_line_for_row(MultiBufferRow(old_head.row))
6028 {
6029 let indent_size =
6030 buffer.indent_size_for_line(line_buffer_range.start.row);
6031 let indent_len = match indent_size.kind {
6032 IndentKind::Space => {
6033 buffer.settings_at(line_buffer_range.start, cx).tab_size
6034 }
6035 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6036 };
6037 if old_head.column <= indent_size.len && old_head.column > 0 {
6038 let indent_len = indent_len.get();
6039 new_head = cmp::min(
6040 new_head,
6041 MultiBufferPoint::new(
6042 old_head.row,
6043 ((old_head.column - 1) / indent_len) * indent_len,
6044 ),
6045 );
6046 }
6047 }
6048
6049 selection.set_head(new_head, SelectionGoal::None);
6050 }
6051 }
6052 }
6053
6054 this.signature_help_state.set_backspace_pressed(true);
6055 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6056 this.insert("", cx);
6057 let empty_str: Arc<str> = Arc::from("");
6058 for (buffer, edits) in linked_ranges {
6059 let snapshot = buffer.read(cx).snapshot();
6060 use text::ToPoint as TP;
6061
6062 let edits = edits
6063 .into_iter()
6064 .map(|range| {
6065 let end_point = TP::to_point(&range.end, &snapshot);
6066 let mut start_point = TP::to_point(&range.start, &snapshot);
6067
6068 if end_point == start_point {
6069 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6070 .saturating_sub(1);
6071 start_point = TP::to_point(&offset, &snapshot);
6072 };
6073
6074 (start_point..end_point, empty_str.clone())
6075 })
6076 .sorted_by_key(|(range, _)| range.start)
6077 .collect::<Vec<_>>();
6078 buffer.update(cx, |this, cx| {
6079 this.edit(edits, None, cx);
6080 })
6081 }
6082 this.refresh_inline_completion(true, false, cx);
6083 linked_editing_ranges::refresh_linked_ranges(this, cx);
6084 });
6085 }
6086
6087 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6088 self.transact(cx, |this, cx| {
6089 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6090 let line_mode = s.line_mode;
6091 s.move_with(|map, selection| {
6092 if selection.is_empty() && !line_mode {
6093 let cursor = movement::right(map, selection.head());
6094 selection.end = cursor;
6095 selection.reversed = true;
6096 selection.goal = SelectionGoal::None;
6097 }
6098 })
6099 });
6100 this.insert("", cx);
6101 this.refresh_inline_completion(true, false, cx);
6102 });
6103 }
6104
6105 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6106 if self.move_to_prev_snippet_tabstop(cx) {
6107 return;
6108 }
6109
6110 self.outdent(&Outdent, cx);
6111 }
6112
6113 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6114 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6115 return;
6116 }
6117
6118 let mut selections = self.selections.all_adjusted(cx);
6119 let buffer = self.buffer.read(cx);
6120 let snapshot = buffer.snapshot(cx);
6121 let rows_iter = selections.iter().map(|s| s.head().row);
6122 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6123
6124 let mut edits = Vec::new();
6125 let mut prev_edited_row = 0;
6126 let mut row_delta = 0;
6127 for selection in &mut selections {
6128 if selection.start.row != prev_edited_row {
6129 row_delta = 0;
6130 }
6131 prev_edited_row = selection.end.row;
6132
6133 // If the selection is non-empty, then increase the indentation of the selected lines.
6134 if !selection.is_empty() {
6135 row_delta =
6136 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6137 continue;
6138 }
6139
6140 // If the selection is empty and the cursor is in the leading whitespace before the
6141 // suggested indentation, then auto-indent the line.
6142 let cursor = selection.head();
6143 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6144 if let Some(suggested_indent) =
6145 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6146 {
6147 if cursor.column < suggested_indent.len
6148 && cursor.column <= current_indent.len
6149 && current_indent.len <= suggested_indent.len
6150 {
6151 selection.start = Point::new(cursor.row, suggested_indent.len);
6152 selection.end = selection.start;
6153 if row_delta == 0 {
6154 edits.extend(Buffer::edit_for_indent_size_adjustment(
6155 cursor.row,
6156 current_indent,
6157 suggested_indent,
6158 ));
6159 row_delta = suggested_indent.len - current_indent.len;
6160 }
6161 continue;
6162 }
6163 }
6164
6165 // Otherwise, insert a hard or soft tab.
6166 let settings = buffer.settings_at(cursor, cx);
6167 let tab_size = if settings.hard_tabs {
6168 IndentSize::tab()
6169 } else {
6170 let tab_size = settings.tab_size.get();
6171 let char_column = snapshot
6172 .text_for_range(Point::new(cursor.row, 0)..cursor)
6173 .flat_map(str::chars)
6174 .count()
6175 + row_delta as usize;
6176 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6177 IndentSize::spaces(chars_to_next_tab_stop)
6178 };
6179 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6180 selection.end = selection.start;
6181 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6182 row_delta += tab_size.len;
6183 }
6184
6185 self.transact(cx, |this, cx| {
6186 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6187 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6188 this.refresh_inline_completion(true, false, cx);
6189 });
6190 }
6191
6192 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6193 if self.read_only(cx) {
6194 return;
6195 }
6196 let mut selections = self.selections.all::<Point>(cx);
6197 let mut prev_edited_row = 0;
6198 let mut row_delta = 0;
6199 let mut edits = Vec::new();
6200 let buffer = self.buffer.read(cx);
6201 let snapshot = buffer.snapshot(cx);
6202 for selection in &mut selections {
6203 if selection.start.row != prev_edited_row {
6204 row_delta = 0;
6205 }
6206 prev_edited_row = selection.end.row;
6207
6208 row_delta =
6209 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6210 }
6211
6212 self.transact(cx, |this, cx| {
6213 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6214 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6215 });
6216 }
6217
6218 fn indent_selection(
6219 buffer: &MultiBuffer,
6220 snapshot: &MultiBufferSnapshot,
6221 selection: &mut Selection<Point>,
6222 edits: &mut Vec<(Range<Point>, String)>,
6223 delta_for_start_row: u32,
6224 cx: &AppContext,
6225 ) -> u32 {
6226 let settings = buffer.settings_at(selection.start, cx);
6227 let tab_size = settings.tab_size.get();
6228 let indent_kind = if settings.hard_tabs {
6229 IndentKind::Tab
6230 } else {
6231 IndentKind::Space
6232 };
6233 let mut start_row = selection.start.row;
6234 let mut end_row = selection.end.row + 1;
6235
6236 // If a selection ends at the beginning of a line, don't indent
6237 // that last line.
6238 if selection.end.column == 0 && selection.end.row > selection.start.row {
6239 end_row -= 1;
6240 }
6241
6242 // Avoid re-indenting a row that has already been indented by a
6243 // previous selection, but still update this selection's column
6244 // to reflect that indentation.
6245 if delta_for_start_row > 0 {
6246 start_row += 1;
6247 selection.start.column += delta_for_start_row;
6248 if selection.end.row == selection.start.row {
6249 selection.end.column += delta_for_start_row;
6250 }
6251 }
6252
6253 let mut delta_for_end_row = 0;
6254 let has_multiple_rows = start_row + 1 != end_row;
6255 for row in start_row..end_row {
6256 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6257 let indent_delta = match (current_indent.kind, indent_kind) {
6258 (IndentKind::Space, IndentKind::Space) => {
6259 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6260 IndentSize::spaces(columns_to_next_tab_stop)
6261 }
6262 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6263 (_, IndentKind::Tab) => IndentSize::tab(),
6264 };
6265
6266 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6267 0
6268 } else {
6269 selection.start.column
6270 };
6271 let row_start = Point::new(row, start);
6272 edits.push((
6273 row_start..row_start,
6274 indent_delta.chars().collect::<String>(),
6275 ));
6276
6277 // Update this selection's endpoints to reflect the indentation.
6278 if row == selection.start.row {
6279 selection.start.column += indent_delta.len;
6280 }
6281 if row == selection.end.row {
6282 selection.end.column += indent_delta.len;
6283 delta_for_end_row = indent_delta.len;
6284 }
6285 }
6286
6287 if selection.start.row == selection.end.row {
6288 delta_for_start_row + delta_for_end_row
6289 } else {
6290 delta_for_end_row
6291 }
6292 }
6293
6294 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6295 if self.read_only(cx) {
6296 return;
6297 }
6298 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6299 let selections = self.selections.all::<Point>(cx);
6300 let mut deletion_ranges = Vec::new();
6301 let mut last_outdent = None;
6302 {
6303 let buffer = self.buffer.read(cx);
6304 let snapshot = buffer.snapshot(cx);
6305 for selection in &selections {
6306 let settings = buffer.settings_at(selection.start, cx);
6307 let tab_size = settings.tab_size.get();
6308 let mut rows = selection.spanned_rows(false, &display_map);
6309
6310 // Avoid re-outdenting a row that has already been outdented by a
6311 // previous selection.
6312 if let Some(last_row) = last_outdent {
6313 if last_row == rows.start {
6314 rows.start = rows.start.next_row();
6315 }
6316 }
6317 let has_multiple_rows = rows.len() > 1;
6318 for row in rows.iter_rows() {
6319 let indent_size = snapshot.indent_size_for_line(row);
6320 if indent_size.len > 0 {
6321 let deletion_len = match indent_size.kind {
6322 IndentKind::Space => {
6323 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6324 if columns_to_prev_tab_stop == 0 {
6325 tab_size
6326 } else {
6327 columns_to_prev_tab_stop
6328 }
6329 }
6330 IndentKind::Tab => 1,
6331 };
6332 let start = if has_multiple_rows
6333 || deletion_len > selection.start.column
6334 || indent_size.len < selection.start.column
6335 {
6336 0
6337 } else {
6338 selection.start.column - deletion_len
6339 };
6340 deletion_ranges.push(
6341 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6342 );
6343 last_outdent = Some(row);
6344 }
6345 }
6346 }
6347 }
6348
6349 self.transact(cx, |this, cx| {
6350 this.buffer.update(cx, |buffer, cx| {
6351 let empty_str: Arc<str> = Arc::default();
6352 buffer.edit(
6353 deletion_ranges
6354 .into_iter()
6355 .map(|range| (range, empty_str.clone())),
6356 None,
6357 cx,
6358 );
6359 });
6360 let selections = this.selections.all::<usize>(cx);
6361 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6362 });
6363 }
6364
6365 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6366 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6367 let selections = self.selections.all::<Point>(cx);
6368
6369 let mut new_cursors = Vec::new();
6370 let mut edit_ranges = Vec::new();
6371 let mut selections = selections.iter().peekable();
6372 while let Some(selection) = selections.next() {
6373 let mut rows = selection.spanned_rows(false, &display_map);
6374 let goal_display_column = selection.head().to_display_point(&display_map).column();
6375
6376 // Accumulate contiguous regions of rows that we want to delete.
6377 while let Some(next_selection) = selections.peek() {
6378 let next_rows = next_selection.spanned_rows(false, &display_map);
6379 if next_rows.start <= rows.end {
6380 rows.end = next_rows.end;
6381 selections.next().unwrap();
6382 } else {
6383 break;
6384 }
6385 }
6386
6387 let buffer = &display_map.buffer_snapshot;
6388 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6389 let edit_end;
6390 let cursor_buffer_row;
6391 if buffer.max_point().row >= rows.end.0 {
6392 // If there's a line after the range, delete the \n from the end of the row range
6393 // and position the cursor on the next line.
6394 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6395 cursor_buffer_row = rows.end;
6396 } else {
6397 // If there isn't a line after the range, delete the \n from the line before the
6398 // start of the row range and position the cursor there.
6399 edit_start = edit_start.saturating_sub(1);
6400 edit_end = buffer.len();
6401 cursor_buffer_row = rows.start.previous_row();
6402 }
6403
6404 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6405 *cursor.column_mut() =
6406 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6407
6408 new_cursors.push((
6409 selection.id,
6410 buffer.anchor_after(cursor.to_point(&display_map)),
6411 ));
6412 edit_ranges.push(edit_start..edit_end);
6413 }
6414
6415 self.transact(cx, |this, cx| {
6416 let buffer = this.buffer.update(cx, |buffer, cx| {
6417 let empty_str: Arc<str> = Arc::default();
6418 buffer.edit(
6419 edit_ranges
6420 .into_iter()
6421 .map(|range| (range, empty_str.clone())),
6422 None,
6423 cx,
6424 );
6425 buffer.snapshot(cx)
6426 });
6427 let new_selections = new_cursors
6428 .into_iter()
6429 .map(|(id, cursor)| {
6430 let cursor = cursor.to_point(&buffer);
6431 Selection {
6432 id,
6433 start: cursor,
6434 end: cursor,
6435 reversed: false,
6436 goal: SelectionGoal::None,
6437 }
6438 })
6439 .collect();
6440
6441 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6442 s.select(new_selections);
6443 });
6444 });
6445 }
6446
6447 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6448 if self.read_only(cx) {
6449 return;
6450 }
6451 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6452 for selection in self.selections.all::<Point>(cx) {
6453 let start = MultiBufferRow(selection.start.row);
6454 // Treat single line selections as if they include the next line. Otherwise this action
6455 // would do nothing for single line selections individual cursors.
6456 let end = if selection.start.row == selection.end.row {
6457 MultiBufferRow(selection.start.row + 1)
6458 } else {
6459 MultiBufferRow(selection.end.row)
6460 };
6461
6462 if let Some(last_row_range) = row_ranges.last_mut() {
6463 if start <= last_row_range.end {
6464 last_row_range.end = end;
6465 continue;
6466 }
6467 }
6468 row_ranges.push(start..end);
6469 }
6470
6471 let snapshot = self.buffer.read(cx).snapshot(cx);
6472 let mut cursor_positions = Vec::new();
6473 for row_range in &row_ranges {
6474 let anchor = snapshot.anchor_before(Point::new(
6475 row_range.end.previous_row().0,
6476 snapshot.line_len(row_range.end.previous_row()),
6477 ));
6478 cursor_positions.push(anchor..anchor);
6479 }
6480
6481 self.transact(cx, |this, cx| {
6482 for row_range in row_ranges.into_iter().rev() {
6483 for row in row_range.iter_rows().rev() {
6484 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6485 let next_line_row = row.next_row();
6486 let indent = snapshot.indent_size_for_line(next_line_row);
6487 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6488
6489 let replace = if snapshot.line_len(next_line_row) > indent.len {
6490 " "
6491 } else {
6492 ""
6493 };
6494
6495 this.buffer.update(cx, |buffer, cx| {
6496 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6497 });
6498 }
6499 }
6500
6501 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6502 s.select_anchor_ranges(cursor_positions)
6503 });
6504 });
6505 }
6506
6507 pub fn sort_lines_case_sensitive(
6508 &mut self,
6509 _: &SortLinesCaseSensitive,
6510 cx: &mut ViewContext<Self>,
6511 ) {
6512 self.manipulate_lines(cx, |lines| lines.sort())
6513 }
6514
6515 pub fn sort_lines_case_insensitive(
6516 &mut self,
6517 _: &SortLinesCaseInsensitive,
6518 cx: &mut ViewContext<Self>,
6519 ) {
6520 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6521 }
6522
6523 pub fn unique_lines_case_insensitive(
6524 &mut self,
6525 _: &UniqueLinesCaseInsensitive,
6526 cx: &mut ViewContext<Self>,
6527 ) {
6528 self.manipulate_lines(cx, |lines| {
6529 let mut seen = HashSet::default();
6530 lines.retain(|line| seen.insert(line.to_lowercase()));
6531 })
6532 }
6533
6534 pub fn unique_lines_case_sensitive(
6535 &mut self,
6536 _: &UniqueLinesCaseSensitive,
6537 cx: &mut ViewContext<Self>,
6538 ) {
6539 self.manipulate_lines(cx, |lines| {
6540 let mut seen = HashSet::default();
6541 lines.retain(|line| seen.insert(*line));
6542 })
6543 }
6544
6545 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6546 let mut revert_changes = HashMap::default();
6547 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6548 for hunk in hunks_for_rows(
6549 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6550 &multi_buffer_snapshot,
6551 ) {
6552 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6553 }
6554 if !revert_changes.is_empty() {
6555 self.transact(cx, |editor, cx| {
6556 editor.revert(revert_changes, cx);
6557 });
6558 }
6559 }
6560
6561 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6562 let Some(project) = self.project.clone() else {
6563 return;
6564 };
6565 self.reload(project, cx).detach_and_notify_err(cx);
6566 }
6567
6568 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6569 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6570 if !revert_changes.is_empty() {
6571 self.transact(cx, |editor, cx| {
6572 editor.revert(revert_changes, cx);
6573 });
6574 }
6575 }
6576
6577 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6578 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6579 let project_path = buffer.read(cx).project_path(cx)?;
6580 let project = self.project.as_ref()?.read(cx);
6581 let entry = project.entry_for_path(&project_path, cx)?;
6582 let parent = match &entry.canonical_path {
6583 Some(canonical_path) => canonical_path.to_path_buf(),
6584 None => project.absolute_path(&project_path, cx)?,
6585 }
6586 .parent()?
6587 .to_path_buf();
6588 Some(parent)
6589 }) {
6590 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6591 }
6592 }
6593
6594 fn gather_revert_changes(
6595 &mut self,
6596 selections: &[Selection<Anchor>],
6597 cx: &mut ViewContext<'_, Editor>,
6598 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6599 let mut revert_changes = HashMap::default();
6600 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6601 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6602 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6603 }
6604 revert_changes
6605 }
6606
6607 pub fn prepare_revert_change(
6608 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6609 multi_buffer: &Model<MultiBuffer>,
6610 hunk: &MultiBufferDiffHunk,
6611 cx: &AppContext,
6612 ) -> Option<()> {
6613 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6614 let buffer = buffer.read(cx);
6615 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6616 let buffer_snapshot = buffer.snapshot();
6617 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6618 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6619 probe
6620 .0
6621 .start
6622 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6623 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6624 }) {
6625 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6626 Some(())
6627 } else {
6628 None
6629 }
6630 }
6631
6632 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6633 self.manipulate_lines(cx, |lines| lines.reverse())
6634 }
6635
6636 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6637 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6638 }
6639
6640 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6641 where
6642 Fn: FnMut(&mut Vec<&str>),
6643 {
6644 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6645 let buffer = self.buffer.read(cx).snapshot(cx);
6646
6647 let mut edits = Vec::new();
6648
6649 let selections = self.selections.all::<Point>(cx);
6650 let mut selections = selections.iter().peekable();
6651 let mut contiguous_row_selections = Vec::new();
6652 let mut new_selections = Vec::new();
6653 let mut added_lines = 0;
6654 let mut removed_lines = 0;
6655
6656 while let Some(selection) = selections.next() {
6657 let (start_row, end_row) = consume_contiguous_rows(
6658 &mut contiguous_row_selections,
6659 selection,
6660 &display_map,
6661 &mut selections,
6662 );
6663
6664 let start_point = Point::new(start_row.0, 0);
6665 let end_point = Point::new(
6666 end_row.previous_row().0,
6667 buffer.line_len(end_row.previous_row()),
6668 );
6669 let text = buffer
6670 .text_for_range(start_point..end_point)
6671 .collect::<String>();
6672
6673 let mut lines = text.split('\n').collect_vec();
6674
6675 let lines_before = lines.len();
6676 callback(&mut lines);
6677 let lines_after = lines.len();
6678
6679 edits.push((start_point..end_point, lines.join("\n")));
6680
6681 // Selections must change based on added and removed line count
6682 let start_row =
6683 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6684 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6685 new_selections.push(Selection {
6686 id: selection.id,
6687 start: start_row,
6688 end: end_row,
6689 goal: SelectionGoal::None,
6690 reversed: selection.reversed,
6691 });
6692
6693 if lines_after > lines_before {
6694 added_lines += lines_after - lines_before;
6695 } else if lines_before > lines_after {
6696 removed_lines += lines_before - lines_after;
6697 }
6698 }
6699
6700 self.transact(cx, |this, cx| {
6701 let buffer = this.buffer.update(cx, |buffer, cx| {
6702 buffer.edit(edits, None, cx);
6703 buffer.snapshot(cx)
6704 });
6705
6706 // Recalculate offsets on newly edited buffer
6707 let new_selections = new_selections
6708 .iter()
6709 .map(|s| {
6710 let start_point = Point::new(s.start.0, 0);
6711 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6712 Selection {
6713 id: s.id,
6714 start: buffer.point_to_offset(start_point),
6715 end: buffer.point_to_offset(end_point),
6716 goal: s.goal,
6717 reversed: s.reversed,
6718 }
6719 })
6720 .collect();
6721
6722 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6723 s.select(new_selections);
6724 });
6725
6726 this.request_autoscroll(Autoscroll::fit(), cx);
6727 });
6728 }
6729
6730 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6731 self.manipulate_text(cx, |text| text.to_uppercase())
6732 }
6733
6734 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6735 self.manipulate_text(cx, |text| text.to_lowercase())
6736 }
6737
6738 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6739 self.manipulate_text(cx, |text| {
6740 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6741 // https://github.com/rutrum/convert-case/issues/16
6742 text.split('\n')
6743 .map(|line| line.to_case(Case::Title))
6744 .join("\n")
6745 })
6746 }
6747
6748 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6749 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6750 }
6751
6752 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6753 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6754 }
6755
6756 pub fn convert_to_upper_camel_case(
6757 &mut self,
6758 _: &ConvertToUpperCamelCase,
6759 cx: &mut ViewContext<Self>,
6760 ) {
6761 self.manipulate_text(cx, |text| {
6762 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6763 // https://github.com/rutrum/convert-case/issues/16
6764 text.split('\n')
6765 .map(|line| line.to_case(Case::UpperCamel))
6766 .join("\n")
6767 })
6768 }
6769
6770 pub fn convert_to_lower_camel_case(
6771 &mut self,
6772 _: &ConvertToLowerCamelCase,
6773 cx: &mut ViewContext<Self>,
6774 ) {
6775 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6776 }
6777
6778 pub fn convert_to_opposite_case(
6779 &mut self,
6780 _: &ConvertToOppositeCase,
6781 cx: &mut ViewContext<Self>,
6782 ) {
6783 self.manipulate_text(cx, |text| {
6784 text.chars()
6785 .fold(String::with_capacity(text.len()), |mut t, c| {
6786 if c.is_uppercase() {
6787 t.extend(c.to_lowercase());
6788 } else {
6789 t.extend(c.to_uppercase());
6790 }
6791 t
6792 })
6793 })
6794 }
6795
6796 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6797 where
6798 Fn: FnMut(&str) -> String,
6799 {
6800 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6801 let buffer = self.buffer.read(cx).snapshot(cx);
6802
6803 let mut new_selections = Vec::new();
6804 let mut edits = Vec::new();
6805 let mut selection_adjustment = 0i32;
6806
6807 for selection in self.selections.all::<usize>(cx) {
6808 let selection_is_empty = selection.is_empty();
6809
6810 let (start, end) = if selection_is_empty {
6811 let word_range = movement::surrounding_word(
6812 &display_map,
6813 selection.start.to_display_point(&display_map),
6814 );
6815 let start = word_range.start.to_offset(&display_map, Bias::Left);
6816 let end = word_range.end.to_offset(&display_map, Bias::Left);
6817 (start, end)
6818 } else {
6819 (selection.start, selection.end)
6820 };
6821
6822 let text = buffer.text_for_range(start..end).collect::<String>();
6823 let old_length = text.len() as i32;
6824 let text = callback(&text);
6825
6826 new_selections.push(Selection {
6827 start: (start as i32 - selection_adjustment) as usize,
6828 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6829 goal: SelectionGoal::None,
6830 ..selection
6831 });
6832
6833 selection_adjustment += old_length - text.len() as i32;
6834
6835 edits.push((start..end, text));
6836 }
6837
6838 self.transact(cx, |this, cx| {
6839 this.buffer.update(cx, |buffer, cx| {
6840 buffer.edit(edits, None, cx);
6841 });
6842
6843 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6844 s.select(new_selections);
6845 });
6846
6847 this.request_autoscroll(Autoscroll::fit(), cx);
6848 });
6849 }
6850
6851 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6852 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6853 let buffer = &display_map.buffer_snapshot;
6854 let selections = self.selections.all::<Point>(cx);
6855
6856 let mut edits = Vec::new();
6857 let mut selections_iter = selections.iter().peekable();
6858 while let Some(selection) = selections_iter.next() {
6859 // Avoid duplicating the same lines twice.
6860 let mut rows = selection.spanned_rows(false, &display_map);
6861
6862 while let Some(next_selection) = selections_iter.peek() {
6863 let next_rows = next_selection.spanned_rows(false, &display_map);
6864 if next_rows.start < rows.end {
6865 rows.end = next_rows.end;
6866 selections_iter.next().unwrap();
6867 } else {
6868 break;
6869 }
6870 }
6871
6872 // Copy the text from the selected row region and splice it either at the start
6873 // or end of the region.
6874 let start = Point::new(rows.start.0, 0);
6875 let end = Point::new(
6876 rows.end.previous_row().0,
6877 buffer.line_len(rows.end.previous_row()),
6878 );
6879 let text = buffer
6880 .text_for_range(start..end)
6881 .chain(Some("\n"))
6882 .collect::<String>();
6883 let insert_location = if upwards {
6884 Point::new(rows.end.0, 0)
6885 } else {
6886 start
6887 };
6888 edits.push((insert_location..insert_location, text));
6889 }
6890
6891 self.transact(cx, |this, cx| {
6892 this.buffer.update(cx, |buffer, cx| {
6893 buffer.edit(edits, None, cx);
6894 });
6895
6896 this.request_autoscroll(Autoscroll::fit(), cx);
6897 });
6898 }
6899
6900 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6901 self.duplicate_line(true, cx);
6902 }
6903
6904 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6905 self.duplicate_line(false, cx);
6906 }
6907
6908 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6909 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6910 let buffer = self.buffer.read(cx).snapshot(cx);
6911
6912 let mut edits = Vec::new();
6913 let mut unfold_ranges = Vec::new();
6914 let mut refold_creases = Vec::new();
6915
6916 let selections = self.selections.all::<Point>(cx);
6917 let mut selections = selections.iter().peekable();
6918 let mut contiguous_row_selections = Vec::new();
6919 let mut new_selections = Vec::new();
6920
6921 while let Some(selection) = selections.next() {
6922 // Find all the selections that span a contiguous row range
6923 let (start_row, end_row) = consume_contiguous_rows(
6924 &mut contiguous_row_selections,
6925 selection,
6926 &display_map,
6927 &mut selections,
6928 );
6929
6930 // Move the text spanned by the row range to be before the line preceding the row range
6931 if start_row.0 > 0 {
6932 let range_to_move = Point::new(
6933 start_row.previous_row().0,
6934 buffer.line_len(start_row.previous_row()),
6935 )
6936 ..Point::new(
6937 end_row.previous_row().0,
6938 buffer.line_len(end_row.previous_row()),
6939 );
6940 let insertion_point = display_map
6941 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6942 .0;
6943
6944 // Don't move lines across excerpts
6945 if buffer
6946 .excerpt_boundaries_in_range((
6947 Bound::Excluded(insertion_point),
6948 Bound::Included(range_to_move.end),
6949 ))
6950 .next()
6951 .is_none()
6952 {
6953 let text = buffer
6954 .text_for_range(range_to_move.clone())
6955 .flat_map(|s| s.chars())
6956 .skip(1)
6957 .chain(['\n'])
6958 .collect::<String>();
6959
6960 edits.push((
6961 buffer.anchor_after(range_to_move.start)
6962 ..buffer.anchor_before(range_to_move.end),
6963 String::new(),
6964 ));
6965 let insertion_anchor = buffer.anchor_after(insertion_point);
6966 edits.push((insertion_anchor..insertion_anchor, text));
6967
6968 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6969
6970 // Move selections up
6971 new_selections.extend(contiguous_row_selections.drain(..).map(
6972 |mut selection| {
6973 selection.start.row -= row_delta;
6974 selection.end.row -= row_delta;
6975 selection
6976 },
6977 ));
6978
6979 // Move folds up
6980 unfold_ranges.push(range_to_move.clone());
6981 for fold in display_map.folds_in_range(
6982 buffer.anchor_before(range_to_move.start)
6983 ..buffer.anchor_after(range_to_move.end),
6984 ) {
6985 let mut start = fold.range.start.to_point(&buffer);
6986 let mut end = fold.range.end.to_point(&buffer);
6987 start.row -= row_delta;
6988 end.row -= row_delta;
6989 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6990 }
6991 }
6992 }
6993
6994 // If we didn't move line(s), preserve the existing selections
6995 new_selections.append(&mut contiguous_row_selections);
6996 }
6997
6998 self.transact(cx, |this, cx| {
6999 this.unfold_ranges(&unfold_ranges, true, true, cx);
7000 this.buffer.update(cx, |buffer, cx| {
7001 for (range, text) in edits {
7002 buffer.edit([(range, text)], None, cx);
7003 }
7004 });
7005 this.fold_creases(refold_creases, true, cx);
7006 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7007 s.select(new_selections);
7008 })
7009 });
7010 }
7011
7012 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7013 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7014 let buffer = self.buffer.read(cx).snapshot(cx);
7015
7016 let mut edits = Vec::new();
7017 let mut unfold_ranges = Vec::new();
7018 let mut refold_creases = Vec::new();
7019
7020 let selections = self.selections.all::<Point>(cx);
7021 let mut selections = selections.iter().peekable();
7022 let mut contiguous_row_selections = Vec::new();
7023 let mut new_selections = Vec::new();
7024
7025 while let Some(selection) = selections.next() {
7026 // Find all the selections that span a contiguous row range
7027 let (start_row, end_row) = consume_contiguous_rows(
7028 &mut contiguous_row_selections,
7029 selection,
7030 &display_map,
7031 &mut selections,
7032 );
7033
7034 // Move the text spanned by the row range to be after the last line of the row range
7035 if end_row.0 <= buffer.max_point().row {
7036 let range_to_move =
7037 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7038 let insertion_point = display_map
7039 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7040 .0;
7041
7042 // Don't move lines across excerpt boundaries
7043 if buffer
7044 .excerpt_boundaries_in_range((
7045 Bound::Excluded(range_to_move.start),
7046 Bound::Included(insertion_point),
7047 ))
7048 .next()
7049 .is_none()
7050 {
7051 let mut text = String::from("\n");
7052 text.extend(buffer.text_for_range(range_to_move.clone()));
7053 text.pop(); // Drop trailing newline
7054 edits.push((
7055 buffer.anchor_after(range_to_move.start)
7056 ..buffer.anchor_before(range_to_move.end),
7057 String::new(),
7058 ));
7059 let insertion_anchor = buffer.anchor_after(insertion_point);
7060 edits.push((insertion_anchor..insertion_anchor, text));
7061
7062 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7063
7064 // Move selections down
7065 new_selections.extend(contiguous_row_selections.drain(..).map(
7066 |mut selection| {
7067 selection.start.row += row_delta;
7068 selection.end.row += row_delta;
7069 selection
7070 },
7071 ));
7072
7073 // Move folds down
7074 unfold_ranges.push(range_to_move.clone());
7075 for fold in display_map.folds_in_range(
7076 buffer.anchor_before(range_to_move.start)
7077 ..buffer.anchor_after(range_to_move.end),
7078 ) {
7079 let mut start = fold.range.start.to_point(&buffer);
7080 let mut end = fold.range.end.to_point(&buffer);
7081 start.row += row_delta;
7082 end.row += row_delta;
7083 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7084 }
7085 }
7086 }
7087
7088 // If we didn't move line(s), preserve the existing selections
7089 new_selections.append(&mut contiguous_row_selections);
7090 }
7091
7092 self.transact(cx, |this, cx| {
7093 this.unfold_ranges(&unfold_ranges, true, true, cx);
7094 this.buffer.update(cx, |buffer, cx| {
7095 for (range, text) in edits {
7096 buffer.edit([(range, text)], None, cx);
7097 }
7098 });
7099 this.fold_creases(refold_creases, true, cx);
7100 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7101 });
7102 }
7103
7104 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7105 let text_layout_details = &self.text_layout_details(cx);
7106 self.transact(cx, |this, cx| {
7107 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7108 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7109 let line_mode = s.line_mode;
7110 s.move_with(|display_map, selection| {
7111 if !selection.is_empty() || line_mode {
7112 return;
7113 }
7114
7115 let mut head = selection.head();
7116 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7117 if head.column() == display_map.line_len(head.row()) {
7118 transpose_offset = display_map
7119 .buffer_snapshot
7120 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7121 }
7122
7123 if transpose_offset == 0 {
7124 return;
7125 }
7126
7127 *head.column_mut() += 1;
7128 head = display_map.clip_point(head, Bias::Right);
7129 let goal = SelectionGoal::HorizontalPosition(
7130 display_map
7131 .x_for_display_point(head, text_layout_details)
7132 .into(),
7133 );
7134 selection.collapse_to(head, goal);
7135
7136 let transpose_start = display_map
7137 .buffer_snapshot
7138 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7139 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7140 let transpose_end = display_map
7141 .buffer_snapshot
7142 .clip_offset(transpose_offset + 1, Bias::Right);
7143 if let Some(ch) =
7144 display_map.buffer_snapshot.chars_at(transpose_start).next()
7145 {
7146 edits.push((transpose_start..transpose_offset, String::new()));
7147 edits.push((transpose_end..transpose_end, ch.to_string()));
7148 }
7149 }
7150 });
7151 edits
7152 });
7153 this.buffer
7154 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7155 let selections = this.selections.all::<usize>(cx);
7156 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7157 s.select(selections);
7158 });
7159 });
7160 }
7161
7162 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7163 self.rewrap_impl(IsVimMode::No, cx)
7164 }
7165
7166 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7167 let buffer = self.buffer.read(cx).snapshot(cx);
7168 let selections = self.selections.all::<Point>(cx);
7169 let mut selections = selections.iter().peekable();
7170
7171 let mut edits = Vec::new();
7172 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7173
7174 while let Some(selection) = selections.next() {
7175 let mut start_row = selection.start.row;
7176 let mut end_row = selection.end.row;
7177
7178 // Skip selections that overlap with a range that has already been rewrapped.
7179 let selection_range = start_row..end_row;
7180 if rewrapped_row_ranges
7181 .iter()
7182 .any(|range| range.overlaps(&selection_range))
7183 {
7184 continue;
7185 }
7186
7187 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7188
7189 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7190 match language_scope.language_name().0.as_ref() {
7191 "Markdown" | "Plain Text" => {
7192 should_rewrap = true;
7193 }
7194 _ => {}
7195 }
7196 }
7197
7198 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7199
7200 // Since not all lines in the selection may be at the same indent
7201 // level, choose the indent size that is the most common between all
7202 // of the lines.
7203 //
7204 // If there is a tie, we use the deepest indent.
7205 let (indent_size, indent_end) = {
7206 let mut indent_size_occurrences = HashMap::default();
7207 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7208
7209 for row in start_row..=end_row {
7210 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7211 rows_by_indent_size.entry(indent).or_default().push(row);
7212 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7213 }
7214
7215 let indent_size = indent_size_occurrences
7216 .into_iter()
7217 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7218 .map(|(indent, _)| indent)
7219 .unwrap_or_default();
7220 let row = rows_by_indent_size[&indent_size][0];
7221 let indent_end = Point::new(row, indent_size.len);
7222
7223 (indent_size, indent_end)
7224 };
7225
7226 let mut line_prefix = indent_size.chars().collect::<String>();
7227
7228 if let Some(comment_prefix) =
7229 buffer
7230 .language_scope_at(selection.head())
7231 .and_then(|language| {
7232 language
7233 .line_comment_prefixes()
7234 .iter()
7235 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7236 .cloned()
7237 })
7238 {
7239 line_prefix.push_str(&comment_prefix);
7240 should_rewrap = true;
7241 }
7242
7243 if !should_rewrap {
7244 continue;
7245 }
7246
7247 if selection.is_empty() {
7248 'expand_upwards: while start_row > 0 {
7249 let prev_row = start_row - 1;
7250 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7251 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7252 {
7253 start_row = prev_row;
7254 } else {
7255 break 'expand_upwards;
7256 }
7257 }
7258
7259 'expand_downwards: while end_row < buffer.max_point().row {
7260 let next_row = end_row + 1;
7261 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7262 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7263 {
7264 end_row = next_row;
7265 } else {
7266 break 'expand_downwards;
7267 }
7268 }
7269 }
7270
7271 let start = Point::new(start_row, 0);
7272 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7273 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7274 let Some(lines_without_prefixes) = selection_text
7275 .lines()
7276 .map(|line| {
7277 line.strip_prefix(&line_prefix)
7278 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7279 .ok_or_else(|| {
7280 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7281 })
7282 })
7283 .collect::<Result<Vec<_>, _>>()
7284 .log_err()
7285 else {
7286 continue;
7287 };
7288
7289 let wrap_column = buffer
7290 .settings_at(Point::new(start_row, 0), cx)
7291 .preferred_line_length as usize;
7292 let wrapped_text = wrap_with_prefix(
7293 line_prefix,
7294 lines_without_prefixes.join(" "),
7295 wrap_column,
7296 tab_size,
7297 );
7298
7299 // TODO: should always use char-based diff while still supporting cursor behavior that
7300 // matches vim.
7301 let diff = match is_vim_mode {
7302 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7303 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7304 };
7305 let mut offset = start.to_offset(&buffer);
7306 let mut moved_since_edit = true;
7307
7308 for change in diff.iter_all_changes() {
7309 let value = change.value();
7310 match change.tag() {
7311 ChangeTag::Equal => {
7312 offset += value.len();
7313 moved_since_edit = true;
7314 }
7315 ChangeTag::Delete => {
7316 let start = buffer.anchor_after(offset);
7317 let end = buffer.anchor_before(offset + value.len());
7318
7319 if moved_since_edit {
7320 edits.push((start..end, String::new()));
7321 } else {
7322 edits.last_mut().unwrap().0.end = end;
7323 }
7324
7325 offset += value.len();
7326 moved_since_edit = false;
7327 }
7328 ChangeTag::Insert => {
7329 if moved_since_edit {
7330 let anchor = buffer.anchor_after(offset);
7331 edits.push((anchor..anchor, value.to_string()));
7332 } else {
7333 edits.last_mut().unwrap().1.push_str(value);
7334 }
7335
7336 moved_since_edit = false;
7337 }
7338 }
7339 }
7340
7341 rewrapped_row_ranges.push(start_row..=end_row);
7342 }
7343
7344 self.buffer
7345 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7346 }
7347
7348 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7349 let mut text = String::new();
7350 let buffer = self.buffer.read(cx).snapshot(cx);
7351 let mut selections = self.selections.all::<Point>(cx);
7352 let mut clipboard_selections = Vec::with_capacity(selections.len());
7353 {
7354 let max_point = buffer.max_point();
7355 let mut is_first = true;
7356 for selection in &mut selections {
7357 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7358 if is_entire_line {
7359 selection.start = Point::new(selection.start.row, 0);
7360 if !selection.is_empty() && selection.end.column == 0 {
7361 selection.end = cmp::min(max_point, selection.end);
7362 } else {
7363 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7364 }
7365 selection.goal = SelectionGoal::None;
7366 }
7367 if is_first {
7368 is_first = false;
7369 } else {
7370 text += "\n";
7371 }
7372 let mut len = 0;
7373 for chunk in buffer.text_for_range(selection.start..selection.end) {
7374 text.push_str(chunk);
7375 len += chunk.len();
7376 }
7377 clipboard_selections.push(ClipboardSelection {
7378 len,
7379 is_entire_line,
7380 first_line_indent: buffer
7381 .indent_size_for_line(MultiBufferRow(selection.start.row))
7382 .len,
7383 });
7384 }
7385 }
7386
7387 self.transact(cx, |this, cx| {
7388 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7389 s.select(selections);
7390 });
7391 this.insert("", cx);
7392 });
7393 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7394 }
7395
7396 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7397 let item = self.cut_common(cx);
7398 cx.write_to_clipboard(item);
7399 }
7400
7401 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7402 self.change_selections(None, cx, |s| {
7403 s.move_with(|snapshot, sel| {
7404 if sel.is_empty() {
7405 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7406 }
7407 });
7408 });
7409 let item = self.cut_common(cx);
7410 cx.set_global(KillRing(item))
7411 }
7412
7413 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7414 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7415 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7416 (kill_ring.text().to_string(), kill_ring.metadata_json())
7417 } else {
7418 return;
7419 }
7420 } else {
7421 return;
7422 };
7423 self.do_paste(&text, metadata, false, cx);
7424 }
7425
7426 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7427 let selections = self.selections.all::<Point>(cx);
7428 let buffer = self.buffer.read(cx).read(cx);
7429 let mut text = String::new();
7430
7431 let mut clipboard_selections = Vec::with_capacity(selections.len());
7432 {
7433 let max_point = buffer.max_point();
7434 let mut is_first = true;
7435 for selection in selections.iter() {
7436 let mut start = selection.start;
7437 let mut end = selection.end;
7438 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7439 if is_entire_line {
7440 start = Point::new(start.row, 0);
7441 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7442 }
7443 if is_first {
7444 is_first = false;
7445 } else {
7446 text += "\n";
7447 }
7448 let mut len = 0;
7449 for chunk in buffer.text_for_range(start..end) {
7450 text.push_str(chunk);
7451 len += chunk.len();
7452 }
7453 clipboard_selections.push(ClipboardSelection {
7454 len,
7455 is_entire_line,
7456 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7457 });
7458 }
7459 }
7460
7461 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7462 text,
7463 clipboard_selections,
7464 ));
7465 }
7466
7467 pub fn do_paste(
7468 &mut self,
7469 text: &String,
7470 clipboard_selections: Option<Vec<ClipboardSelection>>,
7471 handle_entire_lines: bool,
7472 cx: &mut ViewContext<Self>,
7473 ) {
7474 if self.read_only(cx) {
7475 return;
7476 }
7477
7478 let clipboard_text = Cow::Borrowed(text);
7479
7480 self.transact(cx, |this, cx| {
7481 if let Some(mut clipboard_selections) = clipboard_selections {
7482 let old_selections = this.selections.all::<usize>(cx);
7483 let all_selections_were_entire_line =
7484 clipboard_selections.iter().all(|s| s.is_entire_line);
7485 let first_selection_indent_column =
7486 clipboard_selections.first().map(|s| s.first_line_indent);
7487 if clipboard_selections.len() != old_selections.len() {
7488 clipboard_selections.drain(..);
7489 }
7490 let cursor_offset = this.selections.last::<usize>(cx).head();
7491 let mut auto_indent_on_paste = true;
7492
7493 this.buffer.update(cx, |buffer, cx| {
7494 let snapshot = buffer.read(cx);
7495 auto_indent_on_paste =
7496 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7497
7498 let mut start_offset = 0;
7499 let mut edits = Vec::new();
7500 let mut original_indent_columns = Vec::new();
7501 for (ix, selection) in old_selections.iter().enumerate() {
7502 let to_insert;
7503 let entire_line;
7504 let original_indent_column;
7505 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7506 let end_offset = start_offset + clipboard_selection.len;
7507 to_insert = &clipboard_text[start_offset..end_offset];
7508 entire_line = clipboard_selection.is_entire_line;
7509 start_offset = end_offset + 1;
7510 original_indent_column = Some(clipboard_selection.first_line_indent);
7511 } else {
7512 to_insert = clipboard_text.as_str();
7513 entire_line = all_selections_were_entire_line;
7514 original_indent_column = first_selection_indent_column
7515 }
7516
7517 // If the corresponding selection was empty when this slice of the
7518 // clipboard text was written, then the entire line containing the
7519 // selection was copied. If this selection is also currently empty,
7520 // then paste the line before the current line of the buffer.
7521 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7522 let column = selection.start.to_point(&snapshot).column as usize;
7523 let line_start = selection.start - column;
7524 line_start..line_start
7525 } else {
7526 selection.range()
7527 };
7528
7529 edits.push((range, to_insert));
7530 original_indent_columns.extend(original_indent_column);
7531 }
7532 drop(snapshot);
7533
7534 buffer.edit(
7535 edits,
7536 if auto_indent_on_paste {
7537 Some(AutoindentMode::Block {
7538 original_indent_columns,
7539 })
7540 } else {
7541 None
7542 },
7543 cx,
7544 );
7545 });
7546
7547 let selections = this.selections.all::<usize>(cx);
7548 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7549 } else {
7550 this.insert(&clipboard_text, cx);
7551 }
7552 });
7553 }
7554
7555 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7556 if let Some(item) = cx.read_from_clipboard() {
7557 let entries = item.entries();
7558
7559 match entries.first() {
7560 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7561 // of all the pasted entries.
7562 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7563 .do_paste(
7564 clipboard_string.text(),
7565 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7566 true,
7567 cx,
7568 ),
7569 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7570 }
7571 }
7572 }
7573
7574 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7575 if self.read_only(cx) {
7576 return;
7577 }
7578
7579 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7580 if let Some((selections, _)) =
7581 self.selection_history.transaction(transaction_id).cloned()
7582 {
7583 self.change_selections(None, cx, |s| {
7584 s.select_anchors(selections.to_vec());
7585 });
7586 }
7587 self.request_autoscroll(Autoscroll::fit(), cx);
7588 self.unmark_text(cx);
7589 self.refresh_inline_completion(true, false, cx);
7590 cx.emit(EditorEvent::Edited { transaction_id });
7591 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7592 }
7593 }
7594
7595 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7596 if self.read_only(cx) {
7597 return;
7598 }
7599
7600 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7601 if let Some((_, Some(selections))) =
7602 self.selection_history.transaction(transaction_id).cloned()
7603 {
7604 self.change_selections(None, cx, |s| {
7605 s.select_anchors(selections.to_vec());
7606 });
7607 }
7608 self.request_autoscroll(Autoscroll::fit(), cx);
7609 self.unmark_text(cx);
7610 self.refresh_inline_completion(true, false, cx);
7611 cx.emit(EditorEvent::Edited { transaction_id });
7612 }
7613 }
7614
7615 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7616 self.buffer
7617 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7618 }
7619
7620 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7621 self.buffer
7622 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7623 }
7624
7625 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7626 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7627 let line_mode = s.line_mode;
7628 s.move_with(|map, selection| {
7629 let cursor = if selection.is_empty() && !line_mode {
7630 movement::left(map, selection.start)
7631 } else {
7632 selection.start
7633 };
7634 selection.collapse_to(cursor, SelectionGoal::None);
7635 });
7636 })
7637 }
7638
7639 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7641 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7642 })
7643 }
7644
7645 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7647 let line_mode = s.line_mode;
7648 s.move_with(|map, selection| {
7649 let cursor = if selection.is_empty() && !line_mode {
7650 movement::right(map, selection.end)
7651 } else {
7652 selection.end
7653 };
7654 selection.collapse_to(cursor, SelectionGoal::None)
7655 });
7656 })
7657 }
7658
7659 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7660 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7661 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7662 })
7663 }
7664
7665 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7666 if self.take_rename(true, cx).is_some() {
7667 return;
7668 }
7669
7670 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7671 cx.propagate();
7672 return;
7673 }
7674
7675 let text_layout_details = &self.text_layout_details(cx);
7676 let selection_count = self.selections.count();
7677 let first_selection = self.selections.first_anchor();
7678
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 let line_mode = s.line_mode;
7681 s.move_with(|map, selection| {
7682 if !selection.is_empty() && !line_mode {
7683 selection.goal = SelectionGoal::None;
7684 }
7685 let (cursor, goal) = movement::up(
7686 map,
7687 selection.start,
7688 selection.goal,
7689 false,
7690 text_layout_details,
7691 );
7692 selection.collapse_to(cursor, goal);
7693 });
7694 });
7695
7696 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7697 {
7698 cx.propagate();
7699 }
7700 }
7701
7702 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7703 if self.take_rename(true, cx).is_some() {
7704 return;
7705 }
7706
7707 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7708 cx.propagate();
7709 return;
7710 }
7711
7712 let text_layout_details = &self.text_layout_details(cx);
7713
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 let line_mode = s.line_mode;
7716 s.move_with(|map, selection| {
7717 if !selection.is_empty() && !line_mode {
7718 selection.goal = SelectionGoal::None;
7719 }
7720 let (cursor, goal) = movement::up_by_rows(
7721 map,
7722 selection.start,
7723 action.lines,
7724 selection.goal,
7725 false,
7726 text_layout_details,
7727 );
7728 selection.collapse_to(cursor, goal);
7729 });
7730 })
7731 }
7732
7733 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7734 if self.take_rename(true, cx).is_some() {
7735 return;
7736 }
7737
7738 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7739 cx.propagate();
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 let line_mode = s.line_mode;
7747 s.move_with(|map, selection| {
7748 if !selection.is_empty() && !line_mode {
7749 selection.goal = SelectionGoal::None;
7750 }
7751 let (cursor, goal) = movement::down_by_rows(
7752 map,
7753 selection.start,
7754 action.lines,
7755 selection.goal,
7756 false,
7757 text_layout_details,
7758 );
7759 selection.collapse_to(cursor, goal);
7760 });
7761 })
7762 }
7763
7764 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7765 let text_layout_details = &self.text_layout_details(cx);
7766 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7767 s.move_heads_with(|map, head, goal| {
7768 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7769 })
7770 })
7771 }
7772
7773 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7774 let text_layout_details = &self.text_layout_details(cx);
7775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7776 s.move_heads_with(|map, head, goal| {
7777 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7778 })
7779 })
7780 }
7781
7782 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7783 let Some(row_count) = self.visible_row_count() else {
7784 return;
7785 };
7786
7787 let text_layout_details = &self.text_layout_details(cx);
7788
7789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7790 s.move_heads_with(|map, head, goal| {
7791 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7792 })
7793 })
7794 }
7795
7796 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7797 if self.take_rename(true, cx).is_some() {
7798 return;
7799 }
7800
7801 if self
7802 .context_menu
7803 .write()
7804 .as_mut()
7805 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7806 .unwrap_or(false)
7807 {
7808 return;
7809 }
7810
7811 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7812 cx.propagate();
7813 return;
7814 }
7815
7816 let Some(row_count) = self.visible_row_count() else {
7817 return;
7818 };
7819
7820 let autoscroll = if action.center_cursor {
7821 Autoscroll::center()
7822 } else {
7823 Autoscroll::fit()
7824 };
7825
7826 let text_layout_details = &self.text_layout_details(cx);
7827
7828 self.change_selections(Some(autoscroll), cx, |s| {
7829 let line_mode = s.line_mode;
7830 s.move_with(|map, selection| {
7831 if !selection.is_empty() && !line_mode {
7832 selection.goal = SelectionGoal::None;
7833 }
7834 let (cursor, goal) = movement::up_by_rows(
7835 map,
7836 selection.end,
7837 row_count,
7838 selection.goal,
7839 false,
7840 text_layout_details,
7841 );
7842 selection.collapse_to(cursor, goal);
7843 });
7844 });
7845 }
7846
7847 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7848 let text_layout_details = &self.text_layout_details(cx);
7849 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7850 s.move_heads_with(|map, head, goal| {
7851 movement::up(map, head, goal, false, text_layout_details)
7852 })
7853 })
7854 }
7855
7856 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7857 self.take_rename(true, cx);
7858
7859 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7860 cx.propagate();
7861 return;
7862 }
7863
7864 let text_layout_details = &self.text_layout_details(cx);
7865 let selection_count = self.selections.count();
7866 let first_selection = self.selections.first_anchor();
7867
7868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7869 let line_mode = s.line_mode;
7870 s.move_with(|map, selection| {
7871 if !selection.is_empty() && !line_mode {
7872 selection.goal = SelectionGoal::None;
7873 }
7874 let (cursor, goal) = movement::down(
7875 map,
7876 selection.end,
7877 selection.goal,
7878 false,
7879 text_layout_details,
7880 );
7881 selection.collapse_to(cursor, goal);
7882 });
7883 });
7884
7885 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7886 {
7887 cx.propagate();
7888 }
7889 }
7890
7891 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7892 let Some(row_count) = self.visible_row_count() else {
7893 return;
7894 };
7895
7896 let text_layout_details = &self.text_layout_details(cx);
7897
7898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7899 s.move_heads_with(|map, head, goal| {
7900 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7901 })
7902 })
7903 }
7904
7905 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7906 if self.take_rename(true, cx).is_some() {
7907 return;
7908 }
7909
7910 if self
7911 .context_menu
7912 .write()
7913 .as_mut()
7914 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7915 .unwrap_or(false)
7916 {
7917 return;
7918 }
7919
7920 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7921 cx.propagate();
7922 return;
7923 }
7924
7925 let Some(row_count) = self.visible_row_count() else {
7926 return;
7927 };
7928
7929 let autoscroll = if action.center_cursor {
7930 Autoscroll::center()
7931 } else {
7932 Autoscroll::fit()
7933 };
7934
7935 let text_layout_details = &self.text_layout_details(cx);
7936 self.change_selections(Some(autoscroll), cx, |s| {
7937 let line_mode = s.line_mode;
7938 s.move_with(|map, selection| {
7939 if !selection.is_empty() && !line_mode {
7940 selection.goal = SelectionGoal::None;
7941 }
7942 let (cursor, goal) = movement::down_by_rows(
7943 map,
7944 selection.end,
7945 row_count,
7946 selection.goal,
7947 false,
7948 text_layout_details,
7949 );
7950 selection.collapse_to(cursor, goal);
7951 });
7952 });
7953 }
7954
7955 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7956 let text_layout_details = &self.text_layout_details(cx);
7957 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7958 s.move_heads_with(|map, head, goal| {
7959 movement::down(map, head, goal, false, text_layout_details)
7960 })
7961 });
7962 }
7963
7964 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7965 if let Some(context_menu) = self.context_menu.write().as_mut() {
7966 context_menu.select_first(self.completion_provider.as_deref(), cx);
7967 }
7968 }
7969
7970 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7971 if let Some(context_menu) = self.context_menu.write().as_mut() {
7972 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7973 }
7974 }
7975
7976 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7977 if let Some(context_menu) = self.context_menu.write().as_mut() {
7978 context_menu.select_next(self.completion_provider.as_deref(), cx);
7979 }
7980 }
7981
7982 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7983 if let Some(context_menu) = self.context_menu.write().as_mut() {
7984 context_menu.select_last(self.completion_provider.as_deref(), cx);
7985 }
7986 }
7987
7988 pub fn move_to_previous_word_start(
7989 &mut self,
7990 _: &MoveToPreviousWordStart,
7991 cx: &mut ViewContext<Self>,
7992 ) {
7993 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7994 s.move_cursors_with(|map, head, _| {
7995 (
7996 movement::previous_word_start(map, head),
7997 SelectionGoal::None,
7998 )
7999 });
8000 })
8001 }
8002
8003 pub fn move_to_previous_subword_start(
8004 &mut self,
8005 _: &MoveToPreviousSubwordStart,
8006 cx: &mut ViewContext<Self>,
8007 ) {
8008 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8009 s.move_cursors_with(|map, head, _| {
8010 (
8011 movement::previous_subword_start(map, head),
8012 SelectionGoal::None,
8013 )
8014 });
8015 })
8016 }
8017
8018 pub fn select_to_previous_word_start(
8019 &mut self,
8020 _: &SelectToPreviousWordStart,
8021 cx: &mut ViewContext<Self>,
8022 ) {
8023 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8024 s.move_heads_with(|map, head, _| {
8025 (
8026 movement::previous_word_start(map, head),
8027 SelectionGoal::None,
8028 )
8029 });
8030 })
8031 }
8032
8033 pub fn select_to_previous_subword_start(
8034 &mut self,
8035 _: &SelectToPreviousSubwordStart,
8036 cx: &mut ViewContext<Self>,
8037 ) {
8038 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8039 s.move_heads_with(|map, head, _| {
8040 (
8041 movement::previous_subword_start(map, head),
8042 SelectionGoal::None,
8043 )
8044 });
8045 })
8046 }
8047
8048 pub fn delete_to_previous_word_start(
8049 &mut self,
8050 action: &DeleteToPreviousWordStart,
8051 cx: &mut ViewContext<Self>,
8052 ) {
8053 self.transact(cx, |this, cx| {
8054 this.select_autoclose_pair(cx);
8055 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8056 let line_mode = s.line_mode;
8057 s.move_with(|map, selection| {
8058 if selection.is_empty() && !line_mode {
8059 let cursor = if action.ignore_newlines {
8060 movement::previous_word_start(map, selection.head())
8061 } else {
8062 movement::previous_word_start_or_newline(map, selection.head())
8063 };
8064 selection.set_head(cursor, SelectionGoal::None);
8065 }
8066 });
8067 });
8068 this.insert("", cx);
8069 });
8070 }
8071
8072 pub fn delete_to_previous_subword_start(
8073 &mut self,
8074 _: &DeleteToPreviousSubwordStart,
8075 cx: &mut ViewContext<Self>,
8076 ) {
8077 self.transact(cx, |this, cx| {
8078 this.select_autoclose_pair(cx);
8079 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8080 let line_mode = s.line_mode;
8081 s.move_with(|map, selection| {
8082 if selection.is_empty() && !line_mode {
8083 let cursor = movement::previous_subword_start(map, selection.head());
8084 selection.set_head(cursor, SelectionGoal::None);
8085 }
8086 });
8087 });
8088 this.insert("", cx);
8089 });
8090 }
8091
8092 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8093 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8094 s.move_cursors_with(|map, head, _| {
8095 (movement::next_word_end(map, head), SelectionGoal::None)
8096 });
8097 })
8098 }
8099
8100 pub fn move_to_next_subword_end(
8101 &mut self,
8102 _: &MoveToNextSubwordEnd,
8103 cx: &mut ViewContext<Self>,
8104 ) {
8105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8106 s.move_cursors_with(|map, head, _| {
8107 (movement::next_subword_end(map, head), SelectionGoal::None)
8108 });
8109 })
8110 }
8111
8112 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8114 s.move_heads_with(|map, head, _| {
8115 (movement::next_word_end(map, head), SelectionGoal::None)
8116 });
8117 })
8118 }
8119
8120 pub fn select_to_next_subword_end(
8121 &mut self,
8122 _: &SelectToNextSubwordEnd,
8123 cx: &mut ViewContext<Self>,
8124 ) {
8125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8126 s.move_heads_with(|map, head, _| {
8127 (movement::next_subword_end(map, head), SelectionGoal::None)
8128 });
8129 })
8130 }
8131
8132 pub fn delete_to_next_word_end(
8133 &mut self,
8134 action: &DeleteToNextWordEnd,
8135 cx: &mut ViewContext<Self>,
8136 ) {
8137 self.transact(cx, |this, cx| {
8138 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8139 let line_mode = s.line_mode;
8140 s.move_with(|map, selection| {
8141 if selection.is_empty() && !line_mode {
8142 let cursor = if action.ignore_newlines {
8143 movement::next_word_end(map, selection.head())
8144 } else {
8145 movement::next_word_end_or_newline(map, selection.head())
8146 };
8147 selection.set_head(cursor, SelectionGoal::None);
8148 }
8149 });
8150 });
8151 this.insert("", cx);
8152 });
8153 }
8154
8155 pub fn delete_to_next_subword_end(
8156 &mut self,
8157 _: &DeleteToNextSubwordEnd,
8158 cx: &mut ViewContext<Self>,
8159 ) {
8160 self.transact(cx, |this, cx| {
8161 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8162 s.move_with(|map, selection| {
8163 if selection.is_empty() {
8164 let cursor = movement::next_subword_end(map, selection.head());
8165 selection.set_head(cursor, SelectionGoal::None);
8166 }
8167 });
8168 });
8169 this.insert("", cx);
8170 });
8171 }
8172
8173 pub fn move_to_beginning_of_line(
8174 &mut self,
8175 action: &MoveToBeginningOfLine,
8176 cx: &mut ViewContext<Self>,
8177 ) {
8178 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8179 s.move_cursors_with(|map, head, _| {
8180 (
8181 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8182 SelectionGoal::None,
8183 )
8184 });
8185 })
8186 }
8187
8188 pub fn select_to_beginning_of_line(
8189 &mut self,
8190 action: &SelectToBeginningOfLine,
8191 cx: &mut ViewContext<Self>,
8192 ) {
8193 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8194 s.move_heads_with(|map, head, _| {
8195 (
8196 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8197 SelectionGoal::None,
8198 )
8199 });
8200 });
8201 }
8202
8203 pub fn delete_to_beginning_of_line(
8204 &mut self,
8205 _: &DeleteToBeginningOfLine,
8206 cx: &mut ViewContext<Self>,
8207 ) {
8208 self.transact(cx, |this, cx| {
8209 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8210 s.move_with(|_, selection| {
8211 selection.reversed = true;
8212 });
8213 });
8214
8215 this.select_to_beginning_of_line(
8216 &SelectToBeginningOfLine {
8217 stop_at_soft_wraps: false,
8218 },
8219 cx,
8220 );
8221 this.backspace(&Backspace, cx);
8222 });
8223 }
8224
8225 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8227 s.move_cursors_with(|map, head, _| {
8228 (
8229 movement::line_end(map, head, action.stop_at_soft_wraps),
8230 SelectionGoal::None,
8231 )
8232 });
8233 })
8234 }
8235
8236 pub fn select_to_end_of_line(
8237 &mut self,
8238 action: &SelectToEndOfLine,
8239 cx: &mut ViewContext<Self>,
8240 ) {
8241 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8242 s.move_heads_with(|map, head, _| {
8243 (
8244 movement::line_end(map, head, action.stop_at_soft_wraps),
8245 SelectionGoal::None,
8246 )
8247 });
8248 })
8249 }
8250
8251 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8252 self.transact(cx, |this, cx| {
8253 this.select_to_end_of_line(
8254 &SelectToEndOfLine {
8255 stop_at_soft_wraps: false,
8256 },
8257 cx,
8258 );
8259 this.delete(&Delete, cx);
8260 });
8261 }
8262
8263 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8264 self.transact(cx, |this, cx| {
8265 this.select_to_end_of_line(
8266 &SelectToEndOfLine {
8267 stop_at_soft_wraps: false,
8268 },
8269 cx,
8270 );
8271 this.cut(&Cut, cx);
8272 });
8273 }
8274
8275 pub fn move_to_start_of_paragraph(
8276 &mut self,
8277 _: &MoveToStartOfParagraph,
8278 cx: &mut ViewContext<Self>,
8279 ) {
8280 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8281 cx.propagate();
8282 return;
8283 }
8284
8285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8286 s.move_with(|map, selection| {
8287 selection.collapse_to(
8288 movement::start_of_paragraph(map, selection.head(), 1),
8289 SelectionGoal::None,
8290 )
8291 });
8292 })
8293 }
8294
8295 pub fn move_to_end_of_paragraph(
8296 &mut self,
8297 _: &MoveToEndOfParagraph,
8298 cx: &mut ViewContext<Self>,
8299 ) {
8300 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8301 cx.propagate();
8302 return;
8303 }
8304
8305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8306 s.move_with(|map, selection| {
8307 selection.collapse_to(
8308 movement::end_of_paragraph(map, selection.head(), 1),
8309 SelectionGoal::None,
8310 )
8311 });
8312 })
8313 }
8314
8315 pub fn select_to_start_of_paragraph(
8316 &mut self,
8317 _: &SelectToStartOfParagraph,
8318 cx: &mut ViewContext<Self>,
8319 ) {
8320 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8321 cx.propagate();
8322 return;
8323 }
8324
8325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8326 s.move_heads_with(|map, head, _| {
8327 (
8328 movement::start_of_paragraph(map, head, 1),
8329 SelectionGoal::None,
8330 )
8331 });
8332 })
8333 }
8334
8335 pub fn select_to_end_of_paragraph(
8336 &mut self,
8337 _: &SelectToEndOfParagraph,
8338 cx: &mut ViewContext<Self>,
8339 ) {
8340 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8341 cx.propagate();
8342 return;
8343 }
8344
8345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8346 s.move_heads_with(|map, head, _| {
8347 (
8348 movement::end_of_paragraph(map, head, 1),
8349 SelectionGoal::None,
8350 )
8351 });
8352 })
8353 }
8354
8355 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8356 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8357 cx.propagate();
8358 return;
8359 }
8360
8361 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8362 s.select_ranges(vec![0..0]);
8363 });
8364 }
8365
8366 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8367 let mut selection = self.selections.last::<Point>(cx);
8368 selection.set_head(Point::zero(), SelectionGoal::None);
8369
8370 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8371 s.select(vec![selection]);
8372 });
8373 }
8374
8375 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8376 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8377 cx.propagate();
8378 return;
8379 }
8380
8381 let cursor = self.buffer.read(cx).read(cx).len();
8382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8383 s.select_ranges(vec![cursor..cursor])
8384 });
8385 }
8386
8387 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8388 self.nav_history = nav_history;
8389 }
8390
8391 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8392 self.nav_history.as_ref()
8393 }
8394
8395 fn push_to_nav_history(
8396 &mut self,
8397 cursor_anchor: Anchor,
8398 new_position: Option<Point>,
8399 cx: &mut ViewContext<Self>,
8400 ) {
8401 if let Some(nav_history) = self.nav_history.as_mut() {
8402 let buffer = self.buffer.read(cx).read(cx);
8403 let cursor_position = cursor_anchor.to_point(&buffer);
8404 let scroll_state = self.scroll_manager.anchor();
8405 let scroll_top_row = scroll_state.top_row(&buffer);
8406 drop(buffer);
8407
8408 if let Some(new_position) = new_position {
8409 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8410 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8411 return;
8412 }
8413 }
8414
8415 nav_history.push(
8416 Some(NavigationData {
8417 cursor_anchor,
8418 cursor_position,
8419 scroll_anchor: scroll_state,
8420 scroll_top_row,
8421 }),
8422 cx,
8423 );
8424 }
8425 }
8426
8427 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8428 let buffer = self.buffer.read(cx).snapshot(cx);
8429 let mut selection = self.selections.first::<usize>(cx);
8430 selection.set_head(buffer.len(), SelectionGoal::None);
8431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8432 s.select(vec![selection]);
8433 });
8434 }
8435
8436 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8437 let end = self.buffer.read(cx).read(cx).len();
8438 self.change_selections(None, cx, |s| {
8439 s.select_ranges(vec![0..end]);
8440 });
8441 }
8442
8443 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8444 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8445 let mut selections = self.selections.all::<Point>(cx);
8446 let max_point = display_map.buffer_snapshot.max_point();
8447 for selection in &mut selections {
8448 let rows = selection.spanned_rows(true, &display_map);
8449 selection.start = Point::new(rows.start.0, 0);
8450 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8451 selection.reversed = false;
8452 }
8453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8454 s.select(selections);
8455 });
8456 }
8457
8458 pub fn split_selection_into_lines(
8459 &mut self,
8460 _: &SplitSelectionIntoLines,
8461 cx: &mut ViewContext<Self>,
8462 ) {
8463 let mut to_unfold = Vec::new();
8464 let mut new_selection_ranges = Vec::new();
8465 {
8466 let selections = self.selections.all::<Point>(cx);
8467 let buffer = self.buffer.read(cx).read(cx);
8468 for selection in selections {
8469 for row in selection.start.row..selection.end.row {
8470 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8471 new_selection_ranges.push(cursor..cursor);
8472 }
8473 new_selection_ranges.push(selection.end..selection.end);
8474 to_unfold.push(selection.start..selection.end);
8475 }
8476 }
8477 self.unfold_ranges(&to_unfold, true, true, cx);
8478 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8479 s.select_ranges(new_selection_ranges);
8480 });
8481 }
8482
8483 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8484 self.add_selection(true, cx);
8485 }
8486
8487 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8488 self.add_selection(false, cx);
8489 }
8490
8491 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8492 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8493 let mut selections = self.selections.all::<Point>(cx);
8494 let text_layout_details = self.text_layout_details(cx);
8495 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8496 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8497 let range = oldest_selection.display_range(&display_map).sorted();
8498
8499 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8500 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8501 let positions = start_x.min(end_x)..start_x.max(end_x);
8502
8503 selections.clear();
8504 let mut stack = Vec::new();
8505 for row in range.start.row().0..=range.end.row().0 {
8506 if let Some(selection) = self.selections.build_columnar_selection(
8507 &display_map,
8508 DisplayRow(row),
8509 &positions,
8510 oldest_selection.reversed,
8511 &text_layout_details,
8512 ) {
8513 stack.push(selection.id);
8514 selections.push(selection);
8515 }
8516 }
8517
8518 if above {
8519 stack.reverse();
8520 }
8521
8522 AddSelectionsState { above, stack }
8523 });
8524
8525 let last_added_selection = *state.stack.last().unwrap();
8526 let mut new_selections = Vec::new();
8527 if above == state.above {
8528 let end_row = if above {
8529 DisplayRow(0)
8530 } else {
8531 display_map.max_point().row()
8532 };
8533
8534 'outer: for selection in selections {
8535 if selection.id == last_added_selection {
8536 let range = selection.display_range(&display_map).sorted();
8537 debug_assert_eq!(range.start.row(), range.end.row());
8538 let mut row = range.start.row();
8539 let positions =
8540 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8541 px(start)..px(end)
8542 } else {
8543 let start_x =
8544 display_map.x_for_display_point(range.start, &text_layout_details);
8545 let end_x =
8546 display_map.x_for_display_point(range.end, &text_layout_details);
8547 start_x.min(end_x)..start_x.max(end_x)
8548 };
8549
8550 while row != end_row {
8551 if above {
8552 row.0 -= 1;
8553 } else {
8554 row.0 += 1;
8555 }
8556
8557 if let Some(new_selection) = self.selections.build_columnar_selection(
8558 &display_map,
8559 row,
8560 &positions,
8561 selection.reversed,
8562 &text_layout_details,
8563 ) {
8564 state.stack.push(new_selection.id);
8565 if above {
8566 new_selections.push(new_selection);
8567 new_selections.push(selection);
8568 } else {
8569 new_selections.push(selection);
8570 new_selections.push(new_selection);
8571 }
8572
8573 continue 'outer;
8574 }
8575 }
8576 }
8577
8578 new_selections.push(selection);
8579 }
8580 } else {
8581 new_selections = selections;
8582 new_selections.retain(|s| s.id != last_added_selection);
8583 state.stack.pop();
8584 }
8585
8586 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8587 s.select(new_selections);
8588 });
8589 if state.stack.len() > 1 {
8590 self.add_selections_state = Some(state);
8591 }
8592 }
8593
8594 pub fn select_next_match_internal(
8595 &mut self,
8596 display_map: &DisplaySnapshot,
8597 replace_newest: bool,
8598 autoscroll: Option<Autoscroll>,
8599 cx: &mut ViewContext<Self>,
8600 ) -> Result<()> {
8601 fn select_next_match_ranges(
8602 this: &mut Editor,
8603 range: Range<usize>,
8604 replace_newest: bool,
8605 auto_scroll: Option<Autoscroll>,
8606 cx: &mut ViewContext<Editor>,
8607 ) {
8608 this.unfold_ranges(&[range.clone()], false, true, cx);
8609 this.change_selections(auto_scroll, cx, |s| {
8610 if replace_newest {
8611 s.delete(s.newest_anchor().id);
8612 }
8613 s.insert_range(range.clone());
8614 });
8615 }
8616
8617 let buffer = &display_map.buffer_snapshot;
8618 let mut selections = self.selections.all::<usize>(cx);
8619 if let Some(mut select_next_state) = self.select_next_state.take() {
8620 let query = &select_next_state.query;
8621 if !select_next_state.done {
8622 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8623 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8624 let mut next_selected_range = None;
8625
8626 let bytes_after_last_selection =
8627 buffer.bytes_in_range(last_selection.end..buffer.len());
8628 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8629 let query_matches = query
8630 .stream_find_iter(bytes_after_last_selection)
8631 .map(|result| (last_selection.end, result))
8632 .chain(
8633 query
8634 .stream_find_iter(bytes_before_first_selection)
8635 .map(|result| (0, result)),
8636 );
8637
8638 for (start_offset, query_match) in query_matches {
8639 let query_match = query_match.unwrap(); // can only fail due to I/O
8640 let offset_range =
8641 start_offset + query_match.start()..start_offset + query_match.end();
8642 let display_range = offset_range.start.to_display_point(display_map)
8643 ..offset_range.end.to_display_point(display_map);
8644
8645 if !select_next_state.wordwise
8646 || (!movement::is_inside_word(display_map, display_range.start)
8647 && !movement::is_inside_word(display_map, display_range.end))
8648 {
8649 // TODO: This is n^2, because we might check all the selections
8650 if !selections
8651 .iter()
8652 .any(|selection| selection.range().overlaps(&offset_range))
8653 {
8654 next_selected_range = Some(offset_range);
8655 break;
8656 }
8657 }
8658 }
8659
8660 if let Some(next_selected_range) = next_selected_range {
8661 select_next_match_ranges(
8662 self,
8663 next_selected_range,
8664 replace_newest,
8665 autoscroll,
8666 cx,
8667 );
8668 } else {
8669 select_next_state.done = true;
8670 }
8671 }
8672
8673 self.select_next_state = Some(select_next_state);
8674 } else {
8675 let mut only_carets = true;
8676 let mut same_text_selected = true;
8677 let mut selected_text = None;
8678
8679 let mut selections_iter = selections.iter().peekable();
8680 while let Some(selection) = selections_iter.next() {
8681 if selection.start != selection.end {
8682 only_carets = false;
8683 }
8684
8685 if same_text_selected {
8686 if selected_text.is_none() {
8687 selected_text =
8688 Some(buffer.text_for_range(selection.range()).collect::<String>());
8689 }
8690
8691 if let Some(next_selection) = selections_iter.peek() {
8692 if next_selection.range().len() == selection.range().len() {
8693 let next_selected_text = buffer
8694 .text_for_range(next_selection.range())
8695 .collect::<String>();
8696 if Some(next_selected_text) != selected_text {
8697 same_text_selected = false;
8698 selected_text = None;
8699 }
8700 } else {
8701 same_text_selected = false;
8702 selected_text = None;
8703 }
8704 }
8705 }
8706 }
8707
8708 if only_carets {
8709 for selection in &mut selections {
8710 let word_range = movement::surrounding_word(
8711 display_map,
8712 selection.start.to_display_point(display_map),
8713 );
8714 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8715 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8716 selection.goal = SelectionGoal::None;
8717 selection.reversed = false;
8718 select_next_match_ranges(
8719 self,
8720 selection.start..selection.end,
8721 replace_newest,
8722 autoscroll,
8723 cx,
8724 );
8725 }
8726
8727 if selections.len() == 1 {
8728 let selection = selections
8729 .last()
8730 .expect("ensured that there's only one selection");
8731 let query = buffer
8732 .text_for_range(selection.start..selection.end)
8733 .collect::<String>();
8734 let is_empty = query.is_empty();
8735 let select_state = SelectNextState {
8736 query: AhoCorasick::new(&[query])?,
8737 wordwise: true,
8738 done: is_empty,
8739 };
8740 self.select_next_state = Some(select_state);
8741 } else {
8742 self.select_next_state = None;
8743 }
8744 } else if let Some(selected_text) = selected_text {
8745 self.select_next_state = Some(SelectNextState {
8746 query: AhoCorasick::new(&[selected_text])?,
8747 wordwise: false,
8748 done: false,
8749 });
8750 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8751 }
8752 }
8753 Ok(())
8754 }
8755
8756 pub fn select_all_matches(
8757 &mut self,
8758 _action: &SelectAllMatches,
8759 cx: &mut ViewContext<Self>,
8760 ) -> Result<()> {
8761 self.push_to_selection_history();
8762 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8763
8764 self.select_next_match_internal(&display_map, false, None, cx)?;
8765 let Some(select_next_state) = self.select_next_state.as_mut() else {
8766 return Ok(());
8767 };
8768 if select_next_state.done {
8769 return Ok(());
8770 }
8771
8772 let mut new_selections = self.selections.all::<usize>(cx);
8773
8774 let buffer = &display_map.buffer_snapshot;
8775 let query_matches = select_next_state
8776 .query
8777 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8778
8779 for query_match in query_matches {
8780 let query_match = query_match.unwrap(); // can only fail due to I/O
8781 let offset_range = query_match.start()..query_match.end();
8782 let display_range = offset_range.start.to_display_point(&display_map)
8783 ..offset_range.end.to_display_point(&display_map);
8784
8785 if !select_next_state.wordwise
8786 || (!movement::is_inside_word(&display_map, display_range.start)
8787 && !movement::is_inside_word(&display_map, display_range.end))
8788 {
8789 self.selections.change_with(cx, |selections| {
8790 new_selections.push(Selection {
8791 id: selections.new_selection_id(),
8792 start: offset_range.start,
8793 end: offset_range.end,
8794 reversed: false,
8795 goal: SelectionGoal::None,
8796 });
8797 });
8798 }
8799 }
8800
8801 new_selections.sort_by_key(|selection| selection.start);
8802 let mut ix = 0;
8803 while ix + 1 < new_selections.len() {
8804 let current_selection = &new_selections[ix];
8805 let next_selection = &new_selections[ix + 1];
8806 if current_selection.range().overlaps(&next_selection.range()) {
8807 if current_selection.id < next_selection.id {
8808 new_selections.remove(ix + 1);
8809 } else {
8810 new_selections.remove(ix);
8811 }
8812 } else {
8813 ix += 1;
8814 }
8815 }
8816
8817 select_next_state.done = true;
8818 self.unfold_ranges(
8819 &new_selections
8820 .iter()
8821 .map(|selection| selection.range())
8822 .collect::<Vec<_>>(),
8823 false,
8824 false,
8825 cx,
8826 );
8827 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8828 selections.select(new_selections)
8829 });
8830
8831 Ok(())
8832 }
8833
8834 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8835 self.push_to_selection_history();
8836 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8837 self.select_next_match_internal(
8838 &display_map,
8839 action.replace_newest,
8840 Some(Autoscroll::newest()),
8841 cx,
8842 )?;
8843 Ok(())
8844 }
8845
8846 pub fn select_previous(
8847 &mut self,
8848 action: &SelectPrevious,
8849 cx: &mut ViewContext<Self>,
8850 ) -> Result<()> {
8851 self.push_to_selection_history();
8852 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8853 let buffer = &display_map.buffer_snapshot;
8854 let mut selections = self.selections.all::<usize>(cx);
8855 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8856 let query = &select_prev_state.query;
8857 if !select_prev_state.done {
8858 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8859 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8860 let mut next_selected_range = None;
8861 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8862 let bytes_before_last_selection =
8863 buffer.reversed_bytes_in_range(0..last_selection.start);
8864 let bytes_after_first_selection =
8865 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8866 let query_matches = query
8867 .stream_find_iter(bytes_before_last_selection)
8868 .map(|result| (last_selection.start, result))
8869 .chain(
8870 query
8871 .stream_find_iter(bytes_after_first_selection)
8872 .map(|result| (buffer.len(), result)),
8873 );
8874 for (end_offset, query_match) in query_matches {
8875 let query_match = query_match.unwrap(); // can only fail due to I/O
8876 let offset_range =
8877 end_offset - query_match.end()..end_offset - query_match.start();
8878 let display_range = offset_range.start.to_display_point(&display_map)
8879 ..offset_range.end.to_display_point(&display_map);
8880
8881 if !select_prev_state.wordwise
8882 || (!movement::is_inside_word(&display_map, display_range.start)
8883 && !movement::is_inside_word(&display_map, display_range.end))
8884 {
8885 next_selected_range = Some(offset_range);
8886 break;
8887 }
8888 }
8889
8890 if let Some(next_selected_range) = next_selected_range {
8891 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8892 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8893 if action.replace_newest {
8894 s.delete(s.newest_anchor().id);
8895 }
8896 s.insert_range(next_selected_range);
8897 });
8898 } else {
8899 select_prev_state.done = true;
8900 }
8901 }
8902
8903 self.select_prev_state = Some(select_prev_state);
8904 } else {
8905 let mut only_carets = true;
8906 let mut same_text_selected = true;
8907 let mut selected_text = None;
8908
8909 let mut selections_iter = selections.iter().peekable();
8910 while let Some(selection) = selections_iter.next() {
8911 if selection.start != selection.end {
8912 only_carets = false;
8913 }
8914
8915 if same_text_selected {
8916 if selected_text.is_none() {
8917 selected_text =
8918 Some(buffer.text_for_range(selection.range()).collect::<String>());
8919 }
8920
8921 if let Some(next_selection) = selections_iter.peek() {
8922 if next_selection.range().len() == selection.range().len() {
8923 let next_selected_text = buffer
8924 .text_for_range(next_selection.range())
8925 .collect::<String>();
8926 if Some(next_selected_text) != selected_text {
8927 same_text_selected = false;
8928 selected_text = None;
8929 }
8930 } else {
8931 same_text_selected = false;
8932 selected_text = None;
8933 }
8934 }
8935 }
8936 }
8937
8938 if only_carets {
8939 for selection in &mut selections {
8940 let word_range = movement::surrounding_word(
8941 &display_map,
8942 selection.start.to_display_point(&display_map),
8943 );
8944 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8945 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8946 selection.goal = SelectionGoal::None;
8947 selection.reversed = false;
8948 }
8949 if selections.len() == 1 {
8950 let selection = selections
8951 .last()
8952 .expect("ensured that there's only one selection");
8953 let query = buffer
8954 .text_for_range(selection.start..selection.end)
8955 .collect::<String>();
8956 let is_empty = query.is_empty();
8957 let select_state = SelectNextState {
8958 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8959 wordwise: true,
8960 done: is_empty,
8961 };
8962 self.select_prev_state = Some(select_state);
8963 } else {
8964 self.select_prev_state = None;
8965 }
8966
8967 self.unfold_ranges(
8968 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8969 false,
8970 true,
8971 cx,
8972 );
8973 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8974 s.select(selections);
8975 });
8976 } else if let Some(selected_text) = selected_text {
8977 self.select_prev_state = Some(SelectNextState {
8978 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8979 wordwise: false,
8980 done: false,
8981 });
8982 self.select_previous(action, cx)?;
8983 }
8984 }
8985 Ok(())
8986 }
8987
8988 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8989 if self.read_only(cx) {
8990 return;
8991 }
8992 let text_layout_details = &self.text_layout_details(cx);
8993 self.transact(cx, |this, cx| {
8994 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8995 let mut edits = Vec::new();
8996 let mut selection_edit_ranges = Vec::new();
8997 let mut last_toggled_row = None;
8998 let snapshot = this.buffer.read(cx).read(cx);
8999 let empty_str: Arc<str> = Arc::default();
9000 let mut suffixes_inserted = Vec::new();
9001 let ignore_indent = action.ignore_indent;
9002
9003 fn comment_prefix_range(
9004 snapshot: &MultiBufferSnapshot,
9005 row: MultiBufferRow,
9006 comment_prefix: &str,
9007 comment_prefix_whitespace: &str,
9008 ignore_indent: bool,
9009 ) -> Range<Point> {
9010 let indent_size = if ignore_indent {
9011 0
9012 } else {
9013 snapshot.indent_size_for_line(row).len
9014 };
9015
9016 let start = Point::new(row.0, indent_size);
9017
9018 let mut line_bytes = snapshot
9019 .bytes_in_range(start..snapshot.max_point())
9020 .flatten()
9021 .copied();
9022
9023 // If this line currently begins with the line comment prefix, then record
9024 // the range containing the prefix.
9025 if line_bytes
9026 .by_ref()
9027 .take(comment_prefix.len())
9028 .eq(comment_prefix.bytes())
9029 {
9030 // Include any whitespace that matches the comment prefix.
9031 let matching_whitespace_len = line_bytes
9032 .zip(comment_prefix_whitespace.bytes())
9033 .take_while(|(a, b)| a == b)
9034 .count() as u32;
9035 let end = Point::new(
9036 start.row,
9037 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9038 );
9039 start..end
9040 } else {
9041 start..start
9042 }
9043 }
9044
9045 fn comment_suffix_range(
9046 snapshot: &MultiBufferSnapshot,
9047 row: MultiBufferRow,
9048 comment_suffix: &str,
9049 comment_suffix_has_leading_space: bool,
9050 ) -> Range<Point> {
9051 let end = Point::new(row.0, snapshot.line_len(row));
9052 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9053
9054 let mut line_end_bytes = snapshot
9055 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9056 .flatten()
9057 .copied();
9058
9059 let leading_space_len = if suffix_start_column > 0
9060 && line_end_bytes.next() == Some(b' ')
9061 && comment_suffix_has_leading_space
9062 {
9063 1
9064 } else {
9065 0
9066 };
9067
9068 // If this line currently begins with the line comment prefix, then record
9069 // the range containing the prefix.
9070 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9071 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9072 start..end
9073 } else {
9074 end..end
9075 }
9076 }
9077
9078 // TODO: Handle selections that cross excerpts
9079 for selection in &mut selections {
9080 let start_column = snapshot
9081 .indent_size_for_line(MultiBufferRow(selection.start.row))
9082 .len;
9083 let language = if let Some(language) =
9084 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9085 {
9086 language
9087 } else {
9088 continue;
9089 };
9090
9091 selection_edit_ranges.clear();
9092
9093 // If multiple selections contain a given row, avoid processing that
9094 // row more than once.
9095 let mut start_row = MultiBufferRow(selection.start.row);
9096 if last_toggled_row == Some(start_row) {
9097 start_row = start_row.next_row();
9098 }
9099 let end_row =
9100 if selection.end.row > selection.start.row && selection.end.column == 0 {
9101 MultiBufferRow(selection.end.row - 1)
9102 } else {
9103 MultiBufferRow(selection.end.row)
9104 };
9105 last_toggled_row = Some(end_row);
9106
9107 if start_row > end_row {
9108 continue;
9109 }
9110
9111 // If the language has line comments, toggle those.
9112 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9113
9114 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9115 if ignore_indent {
9116 full_comment_prefixes = full_comment_prefixes
9117 .into_iter()
9118 .map(|s| Arc::from(s.trim_end()))
9119 .collect();
9120 }
9121
9122 if !full_comment_prefixes.is_empty() {
9123 let first_prefix = full_comment_prefixes
9124 .first()
9125 .expect("prefixes is non-empty");
9126 let prefix_trimmed_lengths = full_comment_prefixes
9127 .iter()
9128 .map(|p| p.trim_end_matches(' ').len())
9129 .collect::<SmallVec<[usize; 4]>>();
9130
9131 let mut all_selection_lines_are_comments = true;
9132
9133 for row in start_row.0..=end_row.0 {
9134 let row = MultiBufferRow(row);
9135 if start_row < end_row && snapshot.is_line_blank(row) {
9136 continue;
9137 }
9138
9139 let prefix_range = full_comment_prefixes
9140 .iter()
9141 .zip(prefix_trimmed_lengths.iter().copied())
9142 .map(|(prefix, trimmed_prefix_len)| {
9143 comment_prefix_range(
9144 snapshot.deref(),
9145 row,
9146 &prefix[..trimmed_prefix_len],
9147 &prefix[trimmed_prefix_len..],
9148 ignore_indent,
9149 )
9150 })
9151 .max_by_key(|range| range.end.column - range.start.column)
9152 .expect("prefixes is non-empty");
9153
9154 if prefix_range.is_empty() {
9155 all_selection_lines_are_comments = false;
9156 }
9157
9158 selection_edit_ranges.push(prefix_range);
9159 }
9160
9161 if all_selection_lines_are_comments {
9162 edits.extend(
9163 selection_edit_ranges
9164 .iter()
9165 .cloned()
9166 .map(|range| (range, empty_str.clone())),
9167 );
9168 } else {
9169 let min_column = selection_edit_ranges
9170 .iter()
9171 .map(|range| range.start.column)
9172 .min()
9173 .unwrap_or(0);
9174 edits.extend(selection_edit_ranges.iter().map(|range| {
9175 let position = Point::new(range.start.row, min_column);
9176 (position..position, first_prefix.clone())
9177 }));
9178 }
9179 } else if let Some((full_comment_prefix, comment_suffix)) =
9180 language.block_comment_delimiters()
9181 {
9182 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9183 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9184 let prefix_range = comment_prefix_range(
9185 snapshot.deref(),
9186 start_row,
9187 comment_prefix,
9188 comment_prefix_whitespace,
9189 ignore_indent,
9190 );
9191 let suffix_range = comment_suffix_range(
9192 snapshot.deref(),
9193 end_row,
9194 comment_suffix.trim_start_matches(' '),
9195 comment_suffix.starts_with(' '),
9196 );
9197
9198 if prefix_range.is_empty() || suffix_range.is_empty() {
9199 edits.push((
9200 prefix_range.start..prefix_range.start,
9201 full_comment_prefix.clone(),
9202 ));
9203 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9204 suffixes_inserted.push((end_row, comment_suffix.len()));
9205 } else {
9206 edits.push((prefix_range, empty_str.clone()));
9207 edits.push((suffix_range, empty_str.clone()));
9208 }
9209 } else {
9210 continue;
9211 }
9212 }
9213
9214 drop(snapshot);
9215 this.buffer.update(cx, |buffer, cx| {
9216 buffer.edit(edits, None, cx);
9217 });
9218
9219 // Adjust selections so that they end before any comment suffixes that
9220 // were inserted.
9221 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9222 let mut selections = this.selections.all::<Point>(cx);
9223 let snapshot = this.buffer.read(cx).read(cx);
9224 for selection in &mut selections {
9225 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9226 match row.cmp(&MultiBufferRow(selection.end.row)) {
9227 Ordering::Less => {
9228 suffixes_inserted.next();
9229 continue;
9230 }
9231 Ordering::Greater => break,
9232 Ordering::Equal => {
9233 if selection.end.column == snapshot.line_len(row) {
9234 if selection.is_empty() {
9235 selection.start.column -= suffix_len as u32;
9236 }
9237 selection.end.column -= suffix_len as u32;
9238 }
9239 break;
9240 }
9241 }
9242 }
9243 }
9244
9245 drop(snapshot);
9246 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9247
9248 let selections = this.selections.all::<Point>(cx);
9249 let selections_on_single_row = selections.windows(2).all(|selections| {
9250 selections[0].start.row == selections[1].start.row
9251 && selections[0].end.row == selections[1].end.row
9252 && selections[0].start.row == selections[0].end.row
9253 });
9254 let selections_selecting = selections
9255 .iter()
9256 .any(|selection| selection.start != selection.end);
9257 let advance_downwards = action.advance_downwards
9258 && selections_on_single_row
9259 && !selections_selecting
9260 && !matches!(this.mode, EditorMode::SingleLine { .. });
9261
9262 if advance_downwards {
9263 let snapshot = this.buffer.read(cx).snapshot(cx);
9264
9265 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9266 s.move_cursors_with(|display_snapshot, display_point, _| {
9267 let mut point = display_point.to_point(display_snapshot);
9268 point.row += 1;
9269 point = snapshot.clip_point(point, Bias::Left);
9270 let display_point = point.to_display_point(display_snapshot);
9271 let goal = SelectionGoal::HorizontalPosition(
9272 display_snapshot
9273 .x_for_display_point(display_point, text_layout_details)
9274 .into(),
9275 );
9276 (display_point, goal)
9277 })
9278 });
9279 }
9280 });
9281 }
9282
9283 pub fn select_enclosing_symbol(
9284 &mut self,
9285 _: &SelectEnclosingSymbol,
9286 cx: &mut ViewContext<Self>,
9287 ) {
9288 let buffer = self.buffer.read(cx).snapshot(cx);
9289 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9290
9291 fn update_selection(
9292 selection: &Selection<usize>,
9293 buffer_snap: &MultiBufferSnapshot,
9294 ) -> Option<Selection<usize>> {
9295 let cursor = selection.head();
9296 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9297 for symbol in symbols.iter().rev() {
9298 let start = symbol.range.start.to_offset(buffer_snap);
9299 let end = symbol.range.end.to_offset(buffer_snap);
9300 let new_range = start..end;
9301 if start < selection.start || end > selection.end {
9302 return Some(Selection {
9303 id: selection.id,
9304 start: new_range.start,
9305 end: new_range.end,
9306 goal: SelectionGoal::None,
9307 reversed: selection.reversed,
9308 });
9309 }
9310 }
9311 None
9312 }
9313
9314 let mut selected_larger_symbol = false;
9315 let new_selections = old_selections
9316 .iter()
9317 .map(|selection| match update_selection(selection, &buffer) {
9318 Some(new_selection) => {
9319 if new_selection.range() != selection.range() {
9320 selected_larger_symbol = true;
9321 }
9322 new_selection
9323 }
9324 None => selection.clone(),
9325 })
9326 .collect::<Vec<_>>();
9327
9328 if selected_larger_symbol {
9329 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9330 s.select(new_selections);
9331 });
9332 }
9333 }
9334
9335 pub fn select_larger_syntax_node(
9336 &mut self,
9337 _: &SelectLargerSyntaxNode,
9338 cx: &mut ViewContext<Self>,
9339 ) {
9340 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9341 let buffer = self.buffer.read(cx).snapshot(cx);
9342 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9343
9344 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9345 let mut selected_larger_node = false;
9346 let new_selections = old_selections
9347 .iter()
9348 .map(|selection| {
9349 let old_range = selection.start..selection.end;
9350 let mut new_range = old_range.clone();
9351 while let Some(containing_range) =
9352 buffer.range_for_syntax_ancestor(new_range.clone())
9353 {
9354 new_range = containing_range;
9355 if !display_map.intersects_fold(new_range.start)
9356 && !display_map.intersects_fold(new_range.end)
9357 {
9358 break;
9359 }
9360 }
9361
9362 selected_larger_node |= new_range != old_range;
9363 Selection {
9364 id: selection.id,
9365 start: new_range.start,
9366 end: new_range.end,
9367 goal: SelectionGoal::None,
9368 reversed: selection.reversed,
9369 }
9370 })
9371 .collect::<Vec<_>>();
9372
9373 if selected_larger_node {
9374 stack.push(old_selections);
9375 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9376 s.select(new_selections);
9377 });
9378 }
9379 self.select_larger_syntax_node_stack = stack;
9380 }
9381
9382 pub fn select_smaller_syntax_node(
9383 &mut self,
9384 _: &SelectSmallerSyntaxNode,
9385 cx: &mut ViewContext<Self>,
9386 ) {
9387 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9388 if let Some(selections) = stack.pop() {
9389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9390 s.select(selections.to_vec());
9391 });
9392 }
9393 self.select_larger_syntax_node_stack = stack;
9394 }
9395
9396 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9397 if !EditorSettings::get_global(cx).gutter.runnables {
9398 self.clear_tasks();
9399 return Task::ready(());
9400 }
9401 let project = self.project.as_ref().map(Model::downgrade);
9402 cx.spawn(|this, mut cx| async move {
9403 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9404 let Some(project) = project.and_then(|p| p.upgrade()) else {
9405 return;
9406 };
9407 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9408 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9409 }) else {
9410 return;
9411 };
9412
9413 let hide_runnables = project
9414 .update(&mut cx, |project, cx| {
9415 // Do not display any test indicators in non-dev server remote projects.
9416 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9417 })
9418 .unwrap_or(true);
9419 if hide_runnables {
9420 return;
9421 }
9422 let new_rows =
9423 cx.background_executor()
9424 .spawn({
9425 let snapshot = display_snapshot.clone();
9426 async move {
9427 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9428 }
9429 })
9430 .await;
9431 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9432
9433 this.update(&mut cx, |this, _| {
9434 this.clear_tasks();
9435 for (key, value) in rows {
9436 this.insert_tasks(key, value);
9437 }
9438 })
9439 .ok();
9440 })
9441 }
9442 fn fetch_runnable_ranges(
9443 snapshot: &DisplaySnapshot,
9444 range: Range<Anchor>,
9445 ) -> Vec<language::RunnableRange> {
9446 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9447 }
9448
9449 fn runnable_rows(
9450 project: Model<Project>,
9451 snapshot: DisplaySnapshot,
9452 runnable_ranges: Vec<RunnableRange>,
9453 mut cx: AsyncWindowContext,
9454 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9455 runnable_ranges
9456 .into_iter()
9457 .filter_map(|mut runnable| {
9458 let tasks = cx
9459 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9460 .ok()?;
9461 if tasks.is_empty() {
9462 return None;
9463 }
9464
9465 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9466
9467 let row = snapshot
9468 .buffer_snapshot
9469 .buffer_line_for_row(MultiBufferRow(point.row))?
9470 .1
9471 .start
9472 .row;
9473
9474 let context_range =
9475 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9476 Some((
9477 (runnable.buffer_id, row),
9478 RunnableTasks {
9479 templates: tasks,
9480 offset: MultiBufferOffset(runnable.run_range.start),
9481 context_range,
9482 column: point.column,
9483 extra_variables: runnable.extra_captures,
9484 },
9485 ))
9486 })
9487 .collect()
9488 }
9489
9490 fn templates_with_tags(
9491 project: &Model<Project>,
9492 runnable: &mut Runnable,
9493 cx: &WindowContext<'_>,
9494 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9495 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9496 let (worktree_id, file) = project
9497 .buffer_for_id(runnable.buffer, cx)
9498 .and_then(|buffer| buffer.read(cx).file())
9499 .map(|file| (file.worktree_id(cx), file.clone()))
9500 .unzip();
9501
9502 (
9503 project.task_store().read(cx).task_inventory().cloned(),
9504 worktree_id,
9505 file,
9506 )
9507 });
9508
9509 let tags = mem::take(&mut runnable.tags);
9510 let mut tags: Vec<_> = tags
9511 .into_iter()
9512 .flat_map(|tag| {
9513 let tag = tag.0.clone();
9514 inventory
9515 .as_ref()
9516 .into_iter()
9517 .flat_map(|inventory| {
9518 inventory.read(cx).list_tasks(
9519 file.clone(),
9520 Some(runnable.language.clone()),
9521 worktree_id,
9522 cx,
9523 )
9524 })
9525 .filter(move |(_, template)| {
9526 template.tags.iter().any(|source_tag| source_tag == &tag)
9527 })
9528 })
9529 .sorted_by_key(|(kind, _)| kind.to_owned())
9530 .collect();
9531 if let Some((leading_tag_source, _)) = tags.first() {
9532 // Strongest source wins; if we have worktree tag binding, prefer that to
9533 // global and language bindings;
9534 // if we have a global binding, prefer that to language binding.
9535 let first_mismatch = tags
9536 .iter()
9537 .position(|(tag_source, _)| tag_source != leading_tag_source);
9538 if let Some(index) = first_mismatch {
9539 tags.truncate(index);
9540 }
9541 }
9542
9543 tags
9544 }
9545
9546 pub fn move_to_enclosing_bracket(
9547 &mut self,
9548 _: &MoveToEnclosingBracket,
9549 cx: &mut ViewContext<Self>,
9550 ) {
9551 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9552 s.move_offsets_with(|snapshot, selection| {
9553 let Some(enclosing_bracket_ranges) =
9554 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9555 else {
9556 return;
9557 };
9558
9559 let mut best_length = usize::MAX;
9560 let mut best_inside = false;
9561 let mut best_in_bracket_range = false;
9562 let mut best_destination = None;
9563 for (open, close) in enclosing_bracket_ranges {
9564 let close = close.to_inclusive();
9565 let length = close.end() - open.start;
9566 let inside = selection.start >= open.end && selection.end <= *close.start();
9567 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9568 || close.contains(&selection.head());
9569
9570 // If best is next to a bracket and current isn't, skip
9571 if !in_bracket_range && best_in_bracket_range {
9572 continue;
9573 }
9574
9575 // Prefer smaller lengths unless best is inside and current isn't
9576 if length > best_length && (best_inside || !inside) {
9577 continue;
9578 }
9579
9580 best_length = length;
9581 best_inside = inside;
9582 best_in_bracket_range = in_bracket_range;
9583 best_destination = Some(
9584 if close.contains(&selection.start) && close.contains(&selection.end) {
9585 if inside {
9586 open.end
9587 } else {
9588 open.start
9589 }
9590 } else if inside {
9591 *close.start()
9592 } else {
9593 *close.end()
9594 },
9595 );
9596 }
9597
9598 if let Some(destination) = best_destination {
9599 selection.collapse_to(destination, SelectionGoal::None);
9600 }
9601 })
9602 });
9603 }
9604
9605 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9606 self.end_selection(cx);
9607 self.selection_history.mode = SelectionHistoryMode::Undoing;
9608 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9609 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9610 self.select_next_state = entry.select_next_state;
9611 self.select_prev_state = entry.select_prev_state;
9612 self.add_selections_state = entry.add_selections_state;
9613 self.request_autoscroll(Autoscroll::newest(), cx);
9614 }
9615 self.selection_history.mode = SelectionHistoryMode::Normal;
9616 }
9617
9618 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9619 self.end_selection(cx);
9620 self.selection_history.mode = SelectionHistoryMode::Redoing;
9621 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9622 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9623 self.select_next_state = entry.select_next_state;
9624 self.select_prev_state = entry.select_prev_state;
9625 self.add_selections_state = entry.add_selections_state;
9626 self.request_autoscroll(Autoscroll::newest(), cx);
9627 }
9628 self.selection_history.mode = SelectionHistoryMode::Normal;
9629 }
9630
9631 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9632 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9633 }
9634
9635 pub fn expand_excerpts_down(
9636 &mut self,
9637 action: &ExpandExcerptsDown,
9638 cx: &mut ViewContext<Self>,
9639 ) {
9640 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9641 }
9642
9643 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9644 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9645 }
9646
9647 pub fn expand_excerpts_for_direction(
9648 &mut self,
9649 lines: u32,
9650 direction: ExpandExcerptDirection,
9651 cx: &mut ViewContext<Self>,
9652 ) {
9653 let selections = self.selections.disjoint_anchors();
9654
9655 let lines = if lines == 0 {
9656 EditorSettings::get_global(cx).expand_excerpt_lines
9657 } else {
9658 lines
9659 };
9660
9661 self.buffer.update(cx, |buffer, cx| {
9662 buffer.expand_excerpts(
9663 selections
9664 .iter()
9665 .map(|selection| selection.head().excerpt_id)
9666 .dedup(),
9667 lines,
9668 direction,
9669 cx,
9670 )
9671 })
9672 }
9673
9674 pub fn expand_excerpt(
9675 &mut self,
9676 excerpt: ExcerptId,
9677 direction: ExpandExcerptDirection,
9678 cx: &mut ViewContext<Self>,
9679 ) {
9680 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9681 self.buffer.update(cx, |buffer, cx| {
9682 buffer.expand_excerpts([excerpt], lines, direction, cx)
9683 })
9684 }
9685
9686 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9687 self.go_to_diagnostic_impl(Direction::Next, cx)
9688 }
9689
9690 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9691 self.go_to_diagnostic_impl(Direction::Prev, cx)
9692 }
9693
9694 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9695 let buffer = self.buffer.read(cx).snapshot(cx);
9696 let selection = self.selections.newest::<usize>(cx);
9697
9698 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9699 if direction == Direction::Next {
9700 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9701 let (group_id, jump_to) = popover.activation_info();
9702 if self.activate_diagnostics(group_id, cx) {
9703 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9704 let mut new_selection = s.newest_anchor().clone();
9705 new_selection.collapse_to(jump_to, SelectionGoal::None);
9706 s.select_anchors(vec![new_selection.clone()]);
9707 });
9708 }
9709 return;
9710 }
9711 }
9712
9713 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9714 active_diagnostics
9715 .primary_range
9716 .to_offset(&buffer)
9717 .to_inclusive()
9718 });
9719 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9720 if active_primary_range.contains(&selection.head()) {
9721 *active_primary_range.start()
9722 } else {
9723 selection.head()
9724 }
9725 } else {
9726 selection.head()
9727 };
9728 let snapshot = self.snapshot(cx);
9729 loop {
9730 let diagnostics = if direction == Direction::Prev {
9731 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9732 } else {
9733 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9734 }
9735 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9736 let group = diagnostics
9737 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9738 // be sorted in a stable way
9739 // skip until we are at current active diagnostic, if it exists
9740 .skip_while(|entry| {
9741 (match direction {
9742 Direction::Prev => entry.range.start >= search_start,
9743 Direction::Next => entry.range.start <= search_start,
9744 }) && self
9745 .active_diagnostics
9746 .as_ref()
9747 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9748 })
9749 .find_map(|entry| {
9750 if entry.diagnostic.is_primary
9751 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9752 && !entry.range.is_empty()
9753 // if we match with the active diagnostic, skip it
9754 && Some(entry.diagnostic.group_id)
9755 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9756 {
9757 Some((entry.range, entry.diagnostic.group_id))
9758 } else {
9759 None
9760 }
9761 });
9762
9763 if let Some((primary_range, group_id)) = group {
9764 if self.activate_diagnostics(group_id, cx) {
9765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9766 s.select(vec![Selection {
9767 id: selection.id,
9768 start: primary_range.start,
9769 end: primary_range.start,
9770 reversed: false,
9771 goal: SelectionGoal::None,
9772 }]);
9773 });
9774 }
9775 break;
9776 } else {
9777 // Cycle around to the start of the buffer, potentially moving back to the start of
9778 // the currently active diagnostic.
9779 active_primary_range.take();
9780 if direction == Direction::Prev {
9781 if search_start == buffer.len() {
9782 break;
9783 } else {
9784 search_start = buffer.len();
9785 }
9786 } else if search_start == 0 {
9787 break;
9788 } else {
9789 search_start = 0;
9790 }
9791 }
9792 }
9793 }
9794
9795 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9796 let snapshot = self
9797 .display_map
9798 .update(cx, |display_map, cx| display_map.snapshot(cx));
9799 let selection = self.selections.newest::<Point>(cx);
9800 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9801 }
9802
9803 fn go_to_hunk_after_position(
9804 &mut self,
9805 snapshot: &DisplaySnapshot,
9806 position: Point,
9807 cx: &mut ViewContext<'_, Editor>,
9808 ) -> Option<MultiBufferDiffHunk> {
9809 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9810 snapshot,
9811 position,
9812 false,
9813 snapshot
9814 .buffer_snapshot
9815 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9816 cx,
9817 ) {
9818 return Some(hunk);
9819 }
9820
9821 let wrapped_point = Point::zero();
9822 self.go_to_next_hunk_in_direction(
9823 snapshot,
9824 wrapped_point,
9825 true,
9826 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9827 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9828 ),
9829 cx,
9830 )
9831 }
9832
9833 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9834 let snapshot = self
9835 .display_map
9836 .update(cx, |display_map, cx| display_map.snapshot(cx));
9837 let selection = self.selections.newest::<Point>(cx);
9838
9839 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9840 }
9841
9842 fn go_to_hunk_before_position(
9843 &mut self,
9844 snapshot: &DisplaySnapshot,
9845 position: Point,
9846 cx: &mut ViewContext<'_, Editor>,
9847 ) -> Option<MultiBufferDiffHunk> {
9848 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9849 snapshot,
9850 position,
9851 false,
9852 snapshot
9853 .buffer_snapshot
9854 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9855 cx,
9856 ) {
9857 return Some(hunk);
9858 }
9859
9860 let wrapped_point = snapshot.buffer_snapshot.max_point();
9861 self.go_to_next_hunk_in_direction(
9862 snapshot,
9863 wrapped_point,
9864 true,
9865 snapshot
9866 .buffer_snapshot
9867 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9868 cx,
9869 )
9870 }
9871
9872 fn go_to_next_hunk_in_direction(
9873 &mut self,
9874 snapshot: &DisplaySnapshot,
9875 initial_point: Point,
9876 is_wrapped: bool,
9877 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9878 cx: &mut ViewContext<Editor>,
9879 ) -> Option<MultiBufferDiffHunk> {
9880 let display_point = initial_point.to_display_point(snapshot);
9881 let mut hunks = hunks
9882 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9883 .filter(|(display_hunk, _)| {
9884 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9885 })
9886 .dedup();
9887
9888 if let Some((display_hunk, hunk)) = hunks.next() {
9889 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9890 let row = display_hunk.start_display_row();
9891 let point = DisplayPoint::new(row, 0);
9892 s.select_display_ranges([point..point]);
9893 });
9894
9895 Some(hunk)
9896 } else {
9897 None
9898 }
9899 }
9900
9901 pub fn go_to_definition(
9902 &mut self,
9903 _: &GoToDefinition,
9904 cx: &mut ViewContext<Self>,
9905 ) -> Task<Result<Navigated>> {
9906 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9907 cx.spawn(|editor, mut cx| async move {
9908 if definition.await? == Navigated::Yes {
9909 return Ok(Navigated::Yes);
9910 }
9911 match editor.update(&mut cx, |editor, cx| {
9912 editor.find_all_references(&FindAllReferences, cx)
9913 })? {
9914 Some(references) => references.await,
9915 None => Ok(Navigated::No),
9916 }
9917 })
9918 }
9919
9920 pub fn go_to_declaration(
9921 &mut self,
9922 _: &GoToDeclaration,
9923 cx: &mut ViewContext<Self>,
9924 ) -> Task<Result<Navigated>> {
9925 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9926 }
9927
9928 pub fn go_to_declaration_split(
9929 &mut self,
9930 _: &GoToDeclaration,
9931 cx: &mut ViewContext<Self>,
9932 ) -> Task<Result<Navigated>> {
9933 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9934 }
9935
9936 pub fn go_to_implementation(
9937 &mut self,
9938 _: &GoToImplementation,
9939 cx: &mut ViewContext<Self>,
9940 ) -> Task<Result<Navigated>> {
9941 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9942 }
9943
9944 pub fn go_to_implementation_split(
9945 &mut self,
9946 _: &GoToImplementationSplit,
9947 cx: &mut ViewContext<Self>,
9948 ) -> Task<Result<Navigated>> {
9949 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9950 }
9951
9952 pub fn go_to_type_definition(
9953 &mut self,
9954 _: &GoToTypeDefinition,
9955 cx: &mut ViewContext<Self>,
9956 ) -> Task<Result<Navigated>> {
9957 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9958 }
9959
9960 pub fn go_to_definition_split(
9961 &mut self,
9962 _: &GoToDefinitionSplit,
9963 cx: &mut ViewContext<Self>,
9964 ) -> Task<Result<Navigated>> {
9965 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9966 }
9967
9968 pub fn go_to_type_definition_split(
9969 &mut self,
9970 _: &GoToTypeDefinitionSplit,
9971 cx: &mut ViewContext<Self>,
9972 ) -> Task<Result<Navigated>> {
9973 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9974 }
9975
9976 fn go_to_definition_of_kind(
9977 &mut self,
9978 kind: GotoDefinitionKind,
9979 split: bool,
9980 cx: &mut ViewContext<Self>,
9981 ) -> Task<Result<Navigated>> {
9982 let Some(provider) = self.semantics_provider.clone() else {
9983 return Task::ready(Ok(Navigated::No));
9984 };
9985 let head = self.selections.newest::<usize>(cx).head();
9986 let buffer = self.buffer.read(cx);
9987 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9988 text_anchor
9989 } else {
9990 return Task::ready(Ok(Navigated::No));
9991 };
9992
9993 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9994 return Task::ready(Ok(Navigated::No));
9995 };
9996
9997 cx.spawn(|editor, mut cx| async move {
9998 let definitions = definitions.await?;
9999 let navigated = editor
10000 .update(&mut cx, |editor, cx| {
10001 editor.navigate_to_hover_links(
10002 Some(kind),
10003 definitions
10004 .into_iter()
10005 .filter(|location| {
10006 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10007 })
10008 .map(HoverLink::Text)
10009 .collect::<Vec<_>>(),
10010 split,
10011 cx,
10012 )
10013 })?
10014 .await?;
10015 anyhow::Ok(navigated)
10016 })
10017 }
10018
10019 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
10020 let position = self.selections.newest_anchor().head();
10021 let Some((buffer, buffer_position)) =
10022 self.buffer.read(cx).text_anchor_for_position(position, cx)
10023 else {
10024 return;
10025 };
10026
10027 cx.spawn(|editor, mut cx| async move {
10028 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
10029 editor.update(&mut cx, |_, cx| {
10030 cx.open_url(&url);
10031 })
10032 } else {
10033 Ok(())
10034 }
10035 })
10036 .detach();
10037 }
10038
10039 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10040 let Some(workspace) = self.workspace() else {
10041 return;
10042 };
10043
10044 let position = self.selections.newest_anchor().head();
10045
10046 let Some((buffer, buffer_position)) =
10047 self.buffer.read(cx).text_anchor_for_position(position, cx)
10048 else {
10049 return;
10050 };
10051
10052 let project = self.project.clone();
10053
10054 cx.spawn(|_, mut cx| async move {
10055 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10056
10057 if let Some((_, path)) = result {
10058 workspace
10059 .update(&mut cx, |workspace, cx| {
10060 workspace.open_resolved_path(path, cx)
10061 })?
10062 .await?;
10063 }
10064 anyhow::Ok(())
10065 })
10066 .detach();
10067 }
10068
10069 pub(crate) fn navigate_to_hover_links(
10070 &mut self,
10071 kind: Option<GotoDefinitionKind>,
10072 mut definitions: Vec<HoverLink>,
10073 split: bool,
10074 cx: &mut ViewContext<Editor>,
10075 ) -> Task<Result<Navigated>> {
10076 // If there is one definition, just open it directly
10077 if definitions.len() == 1 {
10078 let definition = definitions.pop().unwrap();
10079
10080 enum TargetTaskResult {
10081 Location(Option<Location>),
10082 AlreadyNavigated,
10083 }
10084
10085 let target_task = match definition {
10086 HoverLink::Text(link) => {
10087 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10088 }
10089 HoverLink::InlayHint(lsp_location, server_id) => {
10090 let computation = self.compute_target_location(lsp_location, server_id, cx);
10091 cx.background_executor().spawn(async move {
10092 let location = computation.await?;
10093 Ok(TargetTaskResult::Location(location))
10094 })
10095 }
10096 HoverLink::Url(url) => {
10097 cx.open_url(&url);
10098 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10099 }
10100 HoverLink::File(path) => {
10101 if let Some(workspace) = self.workspace() {
10102 cx.spawn(|_, mut cx| async move {
10103 workspace
10104 .update(&mut cx, |workspace, cx| {
10105 workspace.open_resolved_path(path, cx)
10106 })?
10107 .await
10108 .map(|_| TargetTaskResult::AlreadyNavigated)
10109 })
10110 } else {
10111 Task::ready(Ok(TargetTaskResult::Location(None)))
10112 }
10113 }
10114 };
10115 cx.spawn(|editor, mut cx| async move {
10116 let target = match target_task.await.context("target resolution task")? {
10117 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10118 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10119 TargetTaskResult::Location(Some(target)) => target,
10120 };
10121
10122 editor.update(&mut cx, |editor, cx| {
10123 let Some(workspace) = editor.workspace() else {
10124 return Navigated::No;
10125 };
10126 let pane = workspace.read(cx).active_pane().clone();
10127
10128 let range = target.range.to_offset(target.buffer.read(cx));
10129 let range = editor.range_for_match(&range);
10130
10131 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10132 let buffer = target.buffer.read(cx);
10133 let range = check_multiline_range(buffer, range);
10134 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10135 s.select_ranges([range]);
10136 });
10137 } else {
10138 cx.window_context().defer(move |cx| {
10139 let target_editor: View<Self> =
10140 workspace.update(cx, |workspace, cx| {
10141 let pane = if split {
10142 workspace.adjacent_pane(cx)
10143 } else {
10144 workspace.active_pane().clone()
10145 };
10146
10147 workspace.open_project_item(
10148 pane,
10149 target.buffer.clone(),
10150 true,
10151 true,
10152 cx,
10153 )
10154 });
10155 target_editor.update(cx, |target_editor, cx| {
10156 // When selecting a definition in a different buffer, disable the nav history
10157 // to avoid creating a history entry at the previous cursor location.
10158 pane.update(cx, |pane, _| pane.disable_history());
10159 let buffer = target.buffer.read(cx);
10160 let range = check_multiline_range(buffer, range);
10161 target_editor.change_selections(
10162 Some(Autoscroll::focused()),
10163 cx,
10164 |s| {
10165 s.select_ranges([range]);
10166 },
10167 );
10168 pane.update(cx, |pane, _| pane.enable_history());
10169 });
10170 });
10171 }
10172 Navigated::Yes
10173 })
10174 })
10175 } else if !definitions.is_empty() {
10176 cx.spawn(|editor, mut cx| async move {
10177 let (title, location_tasks, workspace) = editor
10178 .update(&mut cx, |editor, cx| {
10179 let tab_kind = match kind {
10180 Some(GotoDefinitionKind::Implementation) => "Implementations",
10181 _ => "Definitions",
10182 };
10183 let title = definitions
10184 .iter()
10185 .find_map(|definition| match definition {
10186 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10187 let buffer = origin.buffer.read(cx);
10188 format!(
10189 "{} for {}",
10190 tab_kind,
10191 buffer
10192 .text_for_range(origin.range.clone())
10193 .collect::<String>()
10194 )
10195 }),
10196 HoverLink::InlayHint(_, _) => None,
10197 HoverLink::Url(_) => None,
10198 HoverLink::File(_) => None,
10199 })
10200 .unwrap_or(tab_kind.to_string());
10201 let location_tasks = definitions
10202 .into_iter()
10203 .map(|definition| match definition {
10204 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10205 HoverLink::InlayHint(lsp_location, server_id) => {
10206 editor.compute_target_location(lsp_location, server_id, cx)
10207 }
10208 HoverLink::Url(_) => Task::ready(Ok(None)),
10209 HoverLink::File(_) => Task::ready(Ok(None)),
10210 })
10211 .collect::<Vec<_>>();
10212 (title, location_tasks, editor.workspace().clone())
10213 })
10214 .context("location tasks preparation")?;
10215
10216 let locations = future::join_all(location_tasks)
10217 .await
10218 .into_iter()
10219 .filter_map(|location| location.transpose())
10220 .collect::<Result<_>>()
10221 .context("location tasks")?;
10222
10223 let Some(workspace) = workspace else {
10224 return Ok(Navigated::No);
10225 };
10226 let opened = workspace
10227 .update(&mut cx, |workspace, cx| {
10228 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10229 })
10230 .ok();
10231
10232 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10233 })
10234 } else {
10235 Task::ready(Ok(Navigated::No))
10236 }
10237 }
10238
10239 fn compute_target_location(
10240 &self,
10241 lsp_location: lsp::Location,
10242 server_id: LanguageServerId,
10243 cx: &mut ViewContext<Self>,
10244 ) -> Task<anyhow::Result<Option<Location>>> {
10245 let Some(project) = self.project.clone() else {
10246 return Task::Ready(Some(Ok(None)));
10247 };
10248
10249 cx.spawn(move |editor, mut cx| async move {
10250 let location_task = editor.update(&mut cx, |_, cx| {
10251 project.update(cx, |project, cx| {
10252 let language_server_name = project
10253 .language_server_statuses(cx)
10254 .find(|(id, _)| server_id == *id)
10255 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10256 language_server_name.map(|language_server_name| {
10257 project.open_local_buffer_via_lsp(
10258 lsp_location.uri.clone(),
10259 server_id,
10260 language_server_name,
10261 cx,
10262 )
10263 })
10264 })
10265 })?;
10266 let location = match location_task {
10267 Some(task) => Some({
10268 let target_buffer_handle = task.await.context("open local buffer")?;
10269 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10270 let target_start = target_buffer
10271 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10272 let target_end = target_buffer
10273 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10274 target_buffer.anchor_after(target_start)
10275 ..target_buffer.anchor_before(target_end)
10276 })?;
10277 Location {
10278 buffer: target_buffer_handle,
10279 range,
10280 }
10281 }),
10282 None => None,
10283 };
10284 Ok(location)
10285 })
10286 }
10287
10288 pub fn find_all_references(
10289 &mut self,
10290 _: &FindAllReferences,
10291 cx: &mut ViewContext<Self>,
10292 ) -> Option<Task<Result<Navigated>>> {
10293 let selection = self.selections.newest::<usize>(cx);
10294 let multi_buffer = self.buffer.read(cx);
10295 let head = selection.head();
10296
10297 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10298 let head_anchor = multi_buffer_snapshot.anchor_at(
10299 head,
10300 if head < selection.tail() {
10301 Bias::Right
10302 } else {
10303 Bias::Left
10304 },
10305 );
10306
10307 match self
10308 .find_all_references_task_sources
10309 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10310 {
10311 Ok(_) => {
10312 log::info!(
10313 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10314 );
10315 return None;
10316 }
10317 Err(i) => {
10318 self.find_all_references_task_sources.insert(i, head_anchor);
10319 }
10320 }
10321
10322 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10323 let workspace = self.workspace()?;
10324 let project = workspace.read(cx).project().clone();
10325 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10326 Some(cx.spawn(|editor, mut cx| async move {
10327 let _cleanup = defer({
10328 let mut cx = cx.clone();
10329 move || {
10330 let _ = editor.update(&mut cx, |editor, _| {
10331 if let Ok(i) =
10332 editor
10333 .find_all_references_task_sources
10334 .binary_search_by(|anchor| {
10335 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10336 })
10337 {
10338 editor.find_all_references_task_sources.remove(i);
10339 }
10340 });
10341 }
10342 });
10343
10344 let locations = references.await?;
10345 if locations.is_empty() {
10346 return anyhow::Ok(Navigated::No);
10347 }
10348
10349 workspace.update(&mut cx, |workspace, cx| {
10350 let title = locations
10351 .first()
10352 .as_ref()
10353 .map(|location| {
10354 let buffer = location.buffer.read(cx);
10355 format!(
10356 "References to `{}`",
10357 buffer
10358 .text_for_range(location.range.clone())
10359 .collect::<String>()
10360 )
10361 })
10362 .unwrap();
10363 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10364 Navigated::Yes
10365 })
10366 }))
10367 }
10368
10369 /// Opens a multibuffer with the given project locations in it
10370 pub fn open_locations_in_multibuffer(
10371 workspace: &mut Workspace,
10372 mut locations: Vec<Location>,
10373 title: String,
10374 split: bool,
10375 cx: &mut ViewContext<Workspace>,
10376 ) {
10377 // If there are multiple definitions, open them in a multibuffer
10378 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10379 let mut locations = locations.into_iter().peekable();
10380 let mut ranges_to_highlight = Vec::new();
10381 let capability = workspace.project().read(cx).capability();
10382
10383 let excerpt_buffer = cx.new_model(|cx| {
10384 let mut multibuffer = MultiBuffer::new(capability);
10385 while let Some(location) = locations.next() {
10386 let buffer = location.buffer.read(cx);
10387 let mut ranges_for_buffer = Vec::new();
10388 let range = location.range.to_offset(buffer);
10389 ranges_for_buffer.push(range.clone());
10390
10391 while let Some(next_location) = locations.peek() {
10392 if next_location.buffer == location.buffer {
10393 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10394 locations.next();
10395 } else {
10396 break;
10397 }
10398 }
10399
10400 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10401 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10402 location.buffer.clone(),
10403 ranges_for_buffer,
10404 DEFAULT_MULTIBUFFER_CONTEXT,
10405 cx,
10406 ))
10407 }
10408
10409 multibuffer.with_title(title)
10410 });
10411
10412 let editor = cx.new_view(|cx| {
10413 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10414 });
10415 editor.update(cx, |editor, cx| {
10416 if let Some(first_range) = ranges_to_highlight.first() {
10417 editor.change_selections(None, cx, |selections| {
10418 selections.clear_disjoint();
10419 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10420 });
10421 }
10422 editor.highlight_background::<Self>(
10423 &ranges_to_highlight,
10424 |theme| theme.editor_highlighted_line_background,
10425 cx,
10426 );
10427 });
10428
10429 let item = Box::new(editor);
10430 let item_id = item.item_id();
10431
10432 if split {
10433 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10434 } else {
10435 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10436 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10437 pane.close_current_preview_item(cx)
10438 } else {
10439 None
10440 }
10441 });
10442 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10443 }
10444 workspace.active_pane().update(cx, |pane, cx| {
10445 pane.set_preview_item_id(Some(item_id), cx);
10446 });
10447 }
10448
10449 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10450 use language::ToOffset as _;
10451
10452 let provider = self.semantics_provider.clone()?;
10453 let selection = self.selections.newest_anchor().clone();
10454 let (cursor_buffer, cursor_buffer_position) = self
10455 .buffer
10456 .read(cx)
10457 .text_anchor_for_position(selection.head(), cx)?;
10458 let (tail_buffer, cursor_buffer_position_end) = self
10459 .buffer
10460 .read(cx)
10461 .text_anchor_for_position(selection.tail(), cx)?;
10462 if tail_buffer != cursor_buffer {
10463 return None;
10464 }
10465
10466 let snapshot = cursor_buffer.read(cx).snapshot();
10467 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10468 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10469 let prepare_rename = provider
10470 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10471 .unwrap_or_else(|| Task::ready(Ok(None)));
10472 drop(snapshot);
10473
10474 Some(cx.spawn(|this, mut cx| async move {
10475 let rename_range = if let Some(range) = prepare_rename.await? {
10476 Some(range)
10477 } else {
10478 this.update(&mut cx, |this, cx| {
10479 let buffer = this.buffer.read(cx).snapshot(cx);
10480 let mut buffer_highlights = this
10481 .document_highlights_for_position(selection.head(), &buffer)
10482 .filter(|highlight| {
10483 highlight.start.excerpt_id == selection.head().excerpt_id
10484 && highlight.end.excerpt_id == selection.head().excerpt_id
10485 });
10486 buffer_highlights
10487 .next()
10488 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10489 })?
10490 };
10491 if let Some(rename_range) = rename_range {
10492 this.update(&mut cx, |this, cx| {
10493 let snapshot = cursor_buffer.read(cx).snapshot();
10494 let rename_buffer_range = rename_range.to_offset(&snapshot);
10495 let cursor_offset_in_rename_range =
10496 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10497 let cursor_offset_in_rename_range_end =
10498 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10499
10500 this.take_rename(false, cx);
10501 let buffer = this.buffer.read(cx).read(cx);
10502 let cursor_offset = selection.head().to_offset(&buffer);
10503 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10504 let rename_end = rename_start + rename_buffer_range.len();
10505 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10506 let mut old_highlight_id = None;
10507 let old_name: Arc<str> = buffer
10508 .chunks(rename_start..rename_end, true)
10509 .map(|chunk| {
10510 if old_highlight_id.is_none() {
10511 old_highlight_id = chunk.syntax_highlight_id;
10512 }
10513 chunk.text
10514 })
10515 .collect::<String>()
10516 .into();
10517
10518 drop(buffer);
10519
10520 // Position the selection in the rename editor so that it matches the current selection.
10521 this.show_local_selections = false;
10522 let rename_editor = cx.new_view(|cx| {
10523 let mut editor = Editor::single_line(cx);
10524 editor.buffer.update(cx, |buffer, cx| {
10525 buffer.edit([(0..0, old_name.clone())], None, cx)
10526 });
10527 let rename_selection_range = match cursor_offset_in_rename_range
10528 .cmp(&cursor_offset_in_rename_range_end)
10529 {
10530 Ordering::Equal => {
10531 editor.select_all(&SelectAll, cx);
10532 return editor;
10533 }
10534 Ordering::Less => {
10535 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10536 }
10537 Ordering::Greater => {
10538 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10539 }
10540 };
10541 if rename_selection_range.end > old_name.len() {
10542 editor.select_all(&SelectAll, cx);
10543 } else {
10544 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10545 s.select_ranges([rename_selection_range]);
10546 });
10547 }
10548 editor
10549 });
10550 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10551 if e == &EditorEvent::Focused {
10552 cx.emit(EditorEvent::FocusedIn)
10553 }
10554 })
10555 .detach();
10556
10557 let write_highlights =
10558 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10559 let read_highlights =
10560 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10561 let ranges = write_highlights
10562 .iter()
10563 .flat_map(|(_, ranges)| ranges.iter())
10564 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10565 .cloned()
10566 .collect();
10567
10568 this.highlight_text::<Rename>(
10569 ranges,
10570 HighlightStyle {
10571 fade_out: Some(0.6),
10572 ..Default::default()
10573 },
10574 cx,
10575 );
10576 let rename_focus_handle = rename_editor.focus_handle(cx);
10577 cx.focus(&rename_focus_handle);
10578 let block_id = this.insert_blocks(
10579 [BlockProperties {
10580 style: BlockStyle::Flex,
10581 placement: BlockPlacement::Below(range.start),
10582 height: 1,
10583 render: Arc::new({
10584 let rename_editor = rename_editor.clone();
10585 move |cx: &mut BlockContext| {
10586 let mut text_style = cx.editor_style.text.clone();
10587 if let Some(highlight_style) = old_highlight_id
10588 .and_then(|h| h.style(&cx.editor_style.syntax))
10589 {
10590 text_style = text_style.highlight(highlight_style);
10591 }
10592 div()
10593 .block_mouse_down()
10594 .pl(cx.anchor_x)
10595 .child(EditorElement::new(
10596 &rename_editor,
10597 EditorStyle {
10598 background: cx.theme().system().transparent,
10599 local_player: cx.editor_style.local_player,
10600 text: text_style,
10601 scrollbar_width: cx.editor_style.scrollbar_width,
10602 syntax: cx.editor_style.syntax.clone(),
10603 status: cx.editor_style.status.clone(),
10604 inlay_hints_style: HighlightStyle {
10605 font_weight: Some(FontWeight::BOLD),
10606 ..make_inlay_hints_style(cx)
10607 },
10608 suggestions_style: HighlightStyle {
10609 color: Some(cx.theme().status().predictive),
10610 ..HighlightStyle::default()
10611 },
10612 ..EditorStyle::default()
10613 },
10614 ))
10615 .into_any_element()
10616 }
10617 }),
10618 priority: 0,
10619 }],
10620 Some(Autoscroll::fit()),
10621 cx,
10622 )[0];
10623 this.pending_rename = Some(RenameState {
10624 range,
10625 old_name,
10626 editor: rename_editor,
10627 block_id,
10628 });
10629 })?;
10630 }
10631
10632 Ok(())
10633 }))
10634 }
10635
10636 pub fn confirm_rename(
10637 &mut self,
10638 _: &ConfirmRename,
10639 cx: &mut ViewContext<Self>,
10640 ) -> Option<Task<Result<()>>> {
10641 let rename = self.take_rename(false, cx)?;
10642 let workspace = self.workspace()?.downgrade();
10643 let (buffer, start) = self
10644 .buffer
10645 .read(cx)
10646 .text_anchor_for_position(rename.range.start, cx)?;
10647 let (end_buffer, _) = self
10648 .buffer
10649 .read(cx)
10650 .text_anchor_for_position(rename.range.end, cx)?;
10651 if buffer != end_buffer {
10652 return None;
10653 }
10654
10655 let old_name = rename.old_name;
10656 let new_name = rename.editor.read(cx).text(cx);
10657
10658 let rename = self.semantics_provider.as_ref()?.perform_rename(
10659 &buffer,
10660 start,
10661 new_name.clone(),
10662 cx,
10663 )?;
10664
10665 Some(cx.spawn(|editor, mut cx| async move {
10666 let project_transaction = rename.await?;
10667 Self::open_project_transaction(
10668 &editor,
10669 workspace,
10670 project_transaction,
10671 format!("Rename: {} → {}", old_name, new_name),
10672 cx.clone(),
10673 )
10674 .await?;
10675
10676 editor.update(&mut cx, |editor, cx| {
10677 editor.refresh_document_highlights(cx);
10678 })?;
10679 Ok(())
10680 }))
10681 }
10682
10683 fn take_rename(
10684 &mut self,
10685 moving_cursor: bool,
10686 cx: &mut ViewContext<Self>,
10687 ) -> Option<RenameState> {
10688 let rename = self.pending_rename.take()?;
10689 if rename.editor.focus_handle(cx).is_focused(cx) {
10690 cx.focus(&self.focus_handle);
10691 }
10692
10693 self.remove_blocks(
10694 [rename.block_id].into_iter().collect(),
10695 Some(Autoscroll::fit()),
10696 cx,
10697 );
10698 self.clear_highlights::<Rename>(cx);
10699 self.show_local_selections = true;
10700
10701 if moving_cursor {
10702 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10703 editor.selections.newest::<usize>(cx).head()
10704 });
10705
10706 // Update the selection to match the position of the selection inside
10707 // the rename editor.
10708 let snapshot = self.buffer.read(cx).read(cx);
10709 let rename_range = rename.range.to_offset(&snapshot);
10710 let cursor_in_editor = snapshot
10711 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10712 .min(rename_range.end);
10713 drop(snapshot);
10714
10715 self.change_selections(None, cx, |s| {
10716 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10717 });
10718 } else {
10719 self.refresh_document_highlights(cx);
10720 }
10721
10722 Some(rename)
10723 }
10724
10725 pub fn pending_rename(&self) -> Option<&RenameState> {
10726 self.pending_rename.as_ref()
10727 }
10728
10729 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10730 let project = match &self.project {
10731 Some(project) => project.clone(),
10732 None => return None,
10733 };
10734
10735 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10736 }
10737
10738 fn format_selections(
10739 &mut self,
10740 _: &FormatSelections,
10741 cx: &mut ViewContext<Self>,
10742 ) -> Option<Task<Result<()>>> {
10743 let project = match &self.project {
10744 Some(project) => project.clone(),
10745 None => return None,
10746 };
10747
10748 let selections = self
10749 .selections
10750 .all_adjusted(cx)
10751 .into_iter()
10752 .filter(|s| !s.is_empty())
10753 .collect_vec();
10754
10755 Some(self.perform_format(
10756 project,
10757 FormatTrigger::Manual,
10758 FormatTarget::Ranges(selections),
10759 cx,
10760 ))
10761 }
10762
10763 fn perform_format(
10764 &mut self,
10765 project: Model<Project>,
10766 trigger: FormatTrigger,
10767 target: FormatTarget,
10768 cx: &mut ViewContext<Self>,
10769 ) -> Task<Result<()>> {
10770 let buffer = self.buffer().clone();
10771 let mut buffers = buffer.read(cx).all_buffers();
10772 if trigger == FormatTrigger::Save {
10773 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10774 }
10775
10776 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10777 let format = project.update(cx, |project, cx| {
10778 project.format(buffers, true, trigger, target, cx)
10779 });
10780
10781 cx.spawn(|_, mut cx| async move {
10782 let transaction = futures::select_biased! {
10783 () = timeout => {
10784 log::warn!("timed out waiting for formatting");
10785 None
10786 }
10787 transaction = format.log_err().fuse() => transaction,
10788 };
10789
10790 buffer
10791 .update(&mut cx, |buffer, cx| {
10792 if let Some(transaction) = transaction {
10793 if !buffer.is_singleton() {
10794 buffer.push_transaction(&transaction.0, cx);
10795 }
10796 }
10797
10798 cx.notify();
10799 })
10800 .ok();
10801
10802 Ok(())
10803 })
10804 }
10805
10806 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10807 if let Some(project) = self.project.clone() {
10808 self.buffer.update(cx, |multi_buffer, cx| {
10809 project.update(cx, |project, cx| {
10810 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10811 });
10812 })
10813 }
10814 }
10815
10816 fn cancel_language_server_work(
10817 &mut self,
10818 _: &actions::CancelLanguageServerWork,
10819 cx: &mut ViewContext<Self>,
10820 ) {
10821 if let Some(project) = self.project.clone() {
10822 self.buffer.update(cx, |multi_buffer, cx| {
10823 project.update(cx, |project, cx| {
10824 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10825 });
10826 })
10827 }
10828 }
10829
10830 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10831 cx.show_character_palette();
10832 }
10833
10834 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10835 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10836 let buffer = self.buffer.read(cx).snapshot(cx);
10837 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10838 let is_valid = buffer
10839 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10840 .any(|entry| {
10841 entry.diagnostic.is_primary
10842 && !entry.range.is_empty()
10843 && entry.range.start == primary_range_start
10844 && entry.diagnostic.message == active_diagnostics.primary_message
10845 });
10846
10847 if is_valid != active_diagnostics.is_valid {
10848 active_diagnostics.is_valid = is_valid;
10849 let mut new_styles = HashMap::default();
10850 for (block_id, diagnostic) in &active_diagnostics.blocks {
10851 new_styles.insert(
10852 *block_id,
10853 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10854 );
10855 }
10856 self.display_map.update(cx, |display_map, _cx| {
10857 display_map.replace_blocks(new_styles)
10858 });
10859 }
10860 }
10861 }
10862
10863 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10864 self.dismiss_diagnostics(cx);
10865 let snapshot = self.snapshot(cx);
10866 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10867 let buffer = self.buffer.read(cx).snapshot(cx);
10868
10869 let mut primary_range = None;
10870 let mut primary_message = None;
10871 let mut group_end = Point::zero();
10872 let diagnostic_group = buffer
10873 .diagnostic_group::<MultiBufferPoint>(group_id)
10874 .filter_map(|entry| {
10875 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10876 && (entry.range.start.row == entry.range.end.row
10877 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10878 {
10879 return None;
10880 }
10881 if entry.range.end > group_end {
10882 group_end = entry.range.end;
10883 }
10884 if entry.diagnostic.is_primary {
10885 primary_range = Some(entry.range.clone());
10886 primary_message = Some(entry.diagnostic.message.clone());
10887 }
10888 Some(entry)
10889 })
10890 .collect::<Vec<_>>();
10891 let primary_range = primary_range?;
10892 let primary_message = primary_message?;
10893 let primary_range =
10894 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10895
10896 let blocks = display_map
10897 .insert_blocks(
10898 diagnostic_group.iter().map(|entry| {
10899 let diagnostic = entry.diagnostic.clone();
10900 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10901 BlockProperties {
10902 style: BlockStyle::Fixed,
10903 placement: BlockPlacement::Below(
10904 buffer.anchor_after(entry.range.start),
10905 ),
10906 height: message_height,
10907 render: diagnostic_block_renderer(diagnostic, None, true, true),
10908 priority: 0,
10909 }
10910 }),
10911 cx,
10912 )
10913 .into_iter()
10914 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10915 .collect();
10916
10917 Some(ActiveDiagnosticGroup {
10918 primary_range,
10919 primary_message,
10920 group_id,
10921 blocks,
10922 is_valid: true,
10923 })
10924 });
10925 self.active_diagnostics.is_some()
10926 }
10927
10928 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10929 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10930 self.display_map.update(cx, |display_map, cx| {
10931 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10932 });
10933 cx.notify();
10934 }
10935 }
10936
10937 pub fn set_selections_from_remote(
10938 &mut self,
10939 selections: Vec<Selection<Anchor>>,
10940 pending_selection: Option<Selection<Anchor>>,
10941 cx: &mut ViewContext<Self>,
10942 ) {
10943 let old_cursor_position = self.selections.newest_anchor().head();
10944 self.selections.change_with(cx, |s| {
10945 s.select_anchors(selections);
10946 if let Some(pending_selection) = pending_selection {
10947 s.set_pending(pending_selection, SelectMode::Character);
10948 } else {
10949 s.clear_pending();
10950 }
10951 });
10952 self.selections_did_change(false, &old_cursor_position, true, cx);
10953 }
10954
10955 fn push_to_selection_history(&mut self) {
10956 self.selection_history.push(SelectionHistoryEntry {
10957 selections: self.selections.disjoint_anchors(),
10958 select_next_state: self.select_next_state.clone(),
10959 select_prev_state: self.select_prev_state.clone(),
10960 add_selections_state: self.add_selections_state.clone(),
10961 });
10962 }
10963
10964 pub fn transact(
10965 &mut self,
10966 cx: &mut ViewContext<Self>,
10967 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10968 ) -> Option<TransactionId> {
10969 self.start_transaction_at(Instant::now(), cx);
10970 update(self, cx);
10971 self.end_transaction_at(Instant::now(), cx)
10972 }
10973
10974 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10975 self.end_selection(cx);
10976 if let Some(tx_id) = self
10977 .buffer
10978 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10979 {
10980 self.selection_history
10981 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10982 cx.emit(EditorEvent::TransactionBegun {
10983 transaction_id: tx_id,
10984 })
10985 }
10986 }
10987
10988 fn end_transaction_at(
10989 &mut self,
10990 now: Instant,
10991 cx: &mut ViewContext<Self>,
10992 ) -> Option<TransactionId> {
10993 if let Some(transaction_id) = self
10994 .buffer
10995 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10996 {
10997 if let Some((_, end_selections)) =
10998 self.selection_history.transaction_mut(transaction_id)
10999 {
11000 *end_selections = Some(self.selections.disjoint_anchors());
11001 } else {
11002 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11003 }
11004
11005 cx.emit(EditorEvent::Edited { transaction_id });
11006 Some(transaction_id)
11007 } else {
11008 None
11009 }
11010 }
11011
11012 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
11013 let selection = self.selections.newest::<Point>(cx);
11014
11015 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11016 let range = if selection.is_empty() {
11017 let point = selection.head().to_display_point(&display_map);
11018 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11019 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11020 .to_point(&display_map);
11021 start..end
11022 } else {
11023 selection.range()
11024 };
11025 if display_map.folds_in_range(range).next().is_some() {
11026 self.unfold_lines(&Default::default(), cx)
11027 } else {
11028 self.fold(&Default::default(), cx)
11029 }
11030 }
11031
11032 pub fn toggle_fold_recursive(
11033 &mut self,
11034 _: &actions::ToggleFoldRecursive,
11035 cx: &mut ViewContext<Self>,
11036 ) {
11037 let selection = self.selections.newest::<Point>(cx);
11038
11039 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11040 let range = if selection.is_empty() {
11041 let point = selection.head().to_display_point(&display_map);
11042 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11043 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11044 .to_point(&display_map);
11045 start..end
11046 } else {
11047 selection.range()
11048 };
11049 if display_map.folds_in_range(range).next().is_some() {
11050 self.unfold_recursive(&Default::default(), cx)
11051 } else {
11052 self.fold_recursive(&Default::default(), cx)
11053 }
11054 }
11055
11056 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11057 let mut to_fold = Vec::new();
11058 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11059 let selections = self.selections.all_adjusted(cx);
11060
11061 for selection in selections {
11062 let range = selection.range().sorted();
11063 let buffer_start_row = range.start.row;
11064
11065 if range.start.row != range.end.row {
11066 let mut found = false;
11067 let mut row = range.start.row;
11068 while row <= range.end.row {
11069 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11070 found = true;
11071 row = crease.range().end.row + 1;
11072 to_fold.push(crease);
11073 } else {
11074 row += 1
11075 }
11076 }
11077 if found {
11078 continue;
11079 }
11080 }
11081
11082 for row in (0..=range.start.row).rev() {
11083 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11084 if crease.range().end.row >= buffer_start_row {
11085 to_fold.push(crease);
11086 if row <= range.start.row {
11087 break;
11088 }
11089 }
11090 }
11091 }
11092 }
11093
11094 self.fold_creases(to_fold, true, cx);
11095 }
11096
11097 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11098 let fold_at_level = fold_at.level;
11099 let snapshot = self.buffer.read(cx).snapshot(cx);
11100 let mut to_fold = Vec::new();
11101 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
11102
11103 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11104 while start_row < end_row {
11105 match self
11106 .snapshot(cx)
11107 .crease_for_buffer_row(MultiBufferRow(start_row))
11108 {
11109 Some(crease) => {
11110 let nested_start_row = crease.range().start.row + 1;
11111 let nested_end_row = crease.range().end.row;
11112
11113 if current_level < fold_at_level {
11114 stack.push((nested_start_row, nested_end_row, current_level + 1));
11115 } else if current_level == fold_at_level {
11116 to_fold.push(crease);
11117 }
11118
11119 start_row = nested_end_row + 1;
11120 }
11121 None => start_row += 1,
11122 }
11123 }
11124 }
11125
11126 self.fold_creases(to_fold, true, cx);
11127 }
11128
11129 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11130 let mut fold_ranges = Vec::new();
11131 let snapshot = self.buffer.read(cx).snapshot(cx);
11132
11133 for row in 0..snapshot.max_buffer_row().0 {
11134 if let Some(foldable_range) =
11135 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11136 {
11137 fold_ranges.push(foldable_range);
11138 }
11139 }
11140
11141 self.fold_creases(fold_ranges, true, cx);
11142 }
11143
11144 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11145 let mut to_fold = Vec::new();
11146 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11147 let selections = self.selections.all_adjusted(cx);
11148
11149 for selection in selections {
11150 let range = selection.range().sorted();
11151 let buffer_start_row = range.start.row;
11152
11153 if range.start.row != range.end.row {
11154 let mut found = false;
11155 for row in range.start.row..=range.end.row {
11156 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11157 found = true;
11158 to_fold.push(crease);
11159 }
11160 }
11161 if found {
11162 continue;
11163 }
11164 }
11165
11166 for row in (0..=range.start.row).rev() {
11167 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11168 if crease.range().end.row >= buffer_start_row {
11169 to_fold.push(crease);
11170 } else {
11171 break;
11172 }
11173 }
11174 }
11175 }
11176
11177 self.fold_creases(to_fold, true, cx);
11178 }
11179
11180 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11181 let buffer_row = fold_at.buffer_row;
11182 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11183
11184 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11185 let autoscroll = self
11186 .selections
11187 .all::<Point>(cx)
11188 .iter()
11189 .any(|selection| crease.range().overlaps(&selection.range()));
11190
11191 self.fold_creases(vec![crease], autoscroll, cx);
11192 }
11193 }
11194
11195 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11196 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11197 let buffer = &display_map.buffer_snapshot;
11198 let selections = self.selections.all::<Point>(cx);
11199 let ranges = selections
11200 .iter()
11201 .map(|s| {
11202 let range = s.display_range(&display_map).sorted();
11203 let mut start = range.start.to_point(&display_map);
11204 let mut end = range.end.to_point(&display_map);
11205 start.column = 0;
11206 end.column = buffer.line_len(MultiBufferRow(end.row));
11207 start..end
11208 })
11209 .collect::<Vec<_>>();
11210
11211 self.unfold_ranges(&ranges, true, true, cx);
11212 }
11213
11214 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11215 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11216 let selections = self.selections.all::<Point>(cx);
11217 let ranges = selections
11218 .iter()
11219 .map(|s| {
11220 let mut range = s.display_range(&display_map).sorted();
11221 *range.start.column_mut() = 0;
11222 *range.end.column_mut() = display_map.line_len(range.end.row());
11223 let start = range.start.to_point(&display_map);
11224 let end = range.end.to_point(&display_map);
11225 start..end
11226 })
11227 .collect::<Vec<_>>();
11228
11229 self.unfold_ranges(&ranges, true, true, cx);
11230 }
11231
11232 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11233 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11234
11235 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11236 ..Point::new(
11237 unfold_at.buffer_row.0,
11238 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11239 );
11240
11241 let autoscroll = self
11242 .selections
11243 .all::<Point>(cx)
11244 .iter()
11245 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11246
11247 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11248 }
11249
11250 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11251 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11252 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11253 }
11254
11255 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11256 let selections = self.selections.all::<Point>(cx);
11257 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11258 let line_mode = self.selections.line_mode;
11259 let ranges = selections
11260 .into_iter()
11261 .map(|s| {
11262 if line_mode {
11263 let start = Point::new(s.start.row, 0);
11264 let end = Point::new(
11265 s.end.row,
11266 display_map
11267 .buffer_snapshot
11268 .line_len(MultiBufferRow(s.end.row)),
11269 );
11270 Crease::simple(start..end, display_map.fold_placeholder.clone())
11271 } else {
11272 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11273 }
11274 })
11275 .collect::<Vec<_>>();
11276 self.fold_creases(ranges, true, cx);
11277 }
11278
11279 pub fn fold_creases<T: ToOffset + Clone>(
11280 &mut self,
11281 creases: Vec<Crease<T>>,
11282 auto_scroll: bool,
11283 cx: &mut ViewContext<Self>,
11284 ) {
11285 if creases.is_empty() {
11286 return;
11287 }
11288
11289 let mut buffers_affected = HashMap::default();
11290 let multi_buffer = self.buffer().read(cx);
11291 for crease in &creases {
11292 if let Some((_, buffer, _)) =
11293 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11294 {
11295 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11296 };
11297 }
11298
11299 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11300
11301 if auto_scroll {
11302 self.request_autoscroll(Autoscroll::fit(), cx);
11303 }
11304
11305 for buffer in buffers_affected.into_values() {
11306 self.sync_expanded_diff_hunks(buffer, cx);
11307 }
11308
11309 cx.notify();
11310
11311 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11312 // Clear diagnostics block when folding a range that contains it.
11313 let snapshot = self.snapshot(cx);
11314 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11315 drop(snapshot);
11316 self.active_diagnostics = Some(active_diagnostics);
11317 self.dismiss_diagnostics(cx);
11318 } else {
11319 self.active_diagnostics = Some(active_diagnostics);
11320 }
11321 }
11322
11323 self.scrollbar_marker_state.dirty = true;
11324 }
11325
11326 /// Removes any folds whose ranges intersect any of the given ranges.
11327 pub fn unfold_ranges<T: ToOffset + Clone>(
11328 &mut self,
11329 ranges: &[Range<T>],
11330 inclusive: bool,
11331 auto_scroll: bool,
11332 cx: &mut ViewContext<Self>,
11333 ) {
11334 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11335 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11336 });
11337 }
11338
11339 /// Removes any folds with the given ranges.
11340 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11341 &mut self,
11342 ranges: &[Range<T>],
11343 type_id: TypeId,
11344 auto_scroll: bool,
11345 cx: &mut ViewContext<Self>,
11346 ) {
11347 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11348 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11349 });
11350 }
11351
11352 fn remove_folds_with<T: ToOffset + Clone>(
11353 &mut self,
11354 ranges: &[Range<T>],
11355 auto_scroll: bool,
11356 cx: &mut ViewContext<Self>,
11357 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11358 ) {
11359 if ranges.is_empty() {
11360 return;
11361 }
11362
11363 let mut buffers_affected = HashMap::default();
11364 let multi_buffer = self.buffer().read(cx);
11365 for range in ranges {
11366 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11367 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11368 };
11369 }
11370
11371 self.display_map.update(cx, update);
11372
11373 if auto_scroll {
11374 self.request_autoscroll(Autoscroll::fit(), cx);
11375 }
11376
11377 for buffer in buffers_affected.into_values() {
11378 self.sync_expanded_diff_hunks(buffer, cx);
11379 }
11380
11381 cx.notify();
11382 self.scrollbar_marker_state.dirty = true;
11383 self.active_indent_guides_state.dirty = true;
11384 }
11385
11386 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11387 self.display_map.read(cx).fold_placeholder.clone()
11388 }
11389
11390 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11391 if hovered != self.gutter_hovered {
11392 self.gutter_hovered = hovered;
11393 cx.notify();
11394 }
11395 }
11396
11397 pub fn insert_blocks(
11398 &mut self,
11399 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11400 autoscroll: Option<Autoscroll>,
11401 cx: &mut ViewContext<Self>,
11402 ) -> Vec<CustomBlockId> {
11403 let blocks = self
11404 .display_map
11405 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11406 if let Some(autoscroll) = autoscroll {
11407 self.request_autoscroll(autoscroll, cx);
11408 }
11409 cx.notify();
11410 blocks
11411 }
11412
11413 pub fn resize_blocks(
11414 &mut self,
11415 heights: HashMap<CustomBlockId, u32>,
11416 autoscroll: Option<Autoscroll>,
11417 cx: &mut ViewContext<Self>,
11418 ) {
11419 self.display_map
11420 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11421 if let Some(autoscroll) = autoscroll {
11422 self.request_autoscroll(autoscroll, cx);
11423 }
11424 cx.notify();
11425 }
11426
11427 pub fn replace_blocks(
11428 &mut self,
11429 renderers: HashMap<CustomBlockId, RenderBlock>,
11430 autoscroll: Option<Autoscroll>,
11431 cx: &mut ViewContext<Self>,
11432 ) {
11433 self.display_map
11434 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11435 if let Some(autoscroll) = autoscroll {
11436 self.request_autoscroll(autoscroll, cx);
11437 }
11438 cx.notify();
11439 }
11440
11441 pub fn remove_blocks(
11442 &mut self,
11443 block_ids: HashSet<CustomBlockId>,
11444 autoscroll: Option<Autoscroll>,
11445 cx: &mut ViewContext<Self>,
11446 ) {
11447 self.display_map.update(cx, |display_map, cx| {
11448 display_map.remove_blocks(block_ids, cx)
11449 });
11450 if let Some(autoscroll) = autoscroll {
11451 self.request_autoscroll(autoscroll, cx);
11452 }
11453 cx.notify();
11454 }
11455
11456 pub fn row_for_block(
11457 &self,
11458 block_id: CustomBlockId,
11459 cx: &mut ViewContext<Self>,
11460 ) -> Option<DisplayRow> {
11461 self.display_map
11462 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11463 }
11464
11465 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11466 self.focused_block = Some(focused_block);
11467 }
11468
11469 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11470 self.focused_block.take()
11471 }
11472
11473 pub fn insert_creases(
11474 &mut self,
11475 creases: impl IntoIterator<Item = Crease<Anchor>>,
11476 cx: &mut ViewContext<Self>,
11477 ) -> Vec<CreaseId> {
11478 self.display_map
11479 .update(cx, |map, cx| map.insert_creases(creases, cx))
11480 }
11481
11482 pub fn remove_creases(
11483 &mut self,
11484 ids: impl IntoIterator<Item = CreaseId>,
11485 cx: &mut ViewContext<Self>,
11486 ) {
11487 self.display_map
11488 .update(cx, |map, cx| map.remove_creases(ids, cx));
11489 }
11490
11491 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11492 self.display_map
11493 .update(cx, |map, cx| map.snapshot(cx))
11494 .longest_row()
11495 }
11496
11497 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11498 self.display_map
11499 .update(cx, |map, cx| map.snapshot(cx))
11500 .max_point()
11501 }
11502
11503 pub fn text(&self, cx: &AppContext) -> String {
11504 self.buffer.read(cx).read(cx).text()
11505 }
11506
11507 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11508 let text = self.text(cx);
11509 let text = text.trim();
11510
11511 if text.is_empty() {
11512 return None;
11513 }
11514
11515 Some(text.to_string())
11516 }
11517
11518 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11519 self.transact(cx, |this, cx| {
11520 this.buffer
11521 .read(cx)
11522 .as_singleton()
11523 .expect("you can only call set_text on editors for singleton buffers")
11524 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11525 });
11526 }
11527
11528 pub fn display_text(&self, cx: &mut AppContext) -> String {
11529 self.display_map
11530 .update(cx, |map, cx| map.snapshot(cx))
11531 .text()
11532 }
11533
11534 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11535 let mut wrap_guides = smallvec::smallvec![];
11536
11537 if self.show_wrap_guides == Some(false) {
11538 return wrap_guides;
11539 }
11540
11541 let settings = self.buffer.read(cx).settings_at(0, cx);
11542 if settings.show_wrap_guides {
11543 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11544 wrap_guides.push((soft_wrap as usize, true));
11545 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11546 wrap_guides.push((soft_wrap as usize, true));
11547 }
11548 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11549 }
11550
11551 wrap_guides
11552 }
11553
11554 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11555 let settings = self.buffer.read(cx).settings_at(0, cx);
11556 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11557 match mode {
11558 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11559 SoftWrap::None
11560 }
11561 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11562 language_settings::SoftWrap::PreferredLineLength => {
11563 SoftWrap::Column(settings.preferred_line_length)
11564 }
11565 language_settings::SoftWrap::Bounded => {
11566 SoftWrap::Bounded(settings.preferred_line_length)
11567 }
11568 }
11569 }
11570
11571 pub fn set_soft_wrap_mode(
11572 &mut self,
11573 mode: language_settings::SoftWrap,
11574 cx: &mut ViewContext<Self>,
11575 ) {
11576 self.soft_wrap_mode_override = Some(mode);
11577 cx.notify();
11578 }
11579
11580 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11581 self.text_style_refinement = Some(style);
11582 }
11583
11584 /// called by the Element so we know what style we were most recently rendered with.
11585 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11586 let rem_size = cx.rem_size();
11587 self.display_map.update(cx, |map, cx| {
11588 map.set_font(
11589 style.text.font(),
11590 style.text.font_size.to_pixels(rem_size),
11591 cx,
11592 )
11593 });
11594 self.style = Some(style);
11595 }
11596
11597 pub fn style(&self) -> Option<&EditorStyle> {
11598 self.style.as_ref()
11599 }
11600
11601 // Called by the element. This method is not designed to be called outside of the editor
11602 // element's layout code because it does not notify when rewrapping is computed synchronously.
11603 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11604 self.display_map
11605 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11606 }
11607
11608 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11609 if self.soft_wrap_mode_override.is_some() {
11610 self.soft_wrap_mode_override.take();
11611 } else {
11612 let soft_wrap = match self.soft_wrap_mode(cx) {
11613 SoftWrap::GitDiff => return,
11614 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11615 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11616 language_settings::SoftWrap::None
11617 }
11618 };
11619 self.soft_wrap_mode_override = Some(soft_wrap);
11620 }
11621 cx.notify();
11622 }
11623
11624 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11625 let Some(workspace) = self.workspace() else {
11626 return;
11627 };
11628 let fs = workspace.read(cx).app_state().fs.clone();
11629 let current_show = TabBarSettings::get_global(cx).show;
11630 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11631 setting.show = Some(!current_show);
11632 });
11633 }
11634
11635 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11636 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11637 self.buffer
11638 .read(cx)
11639 .settings_at(0, cx)
11640 .indent_guides
11641 .enabled
11642 });
11643 self.show_indent_guides = Some(!currently_enabled);
11644 cx.notify();
11645 }
11646
11647 fn should_show_indent_guides(&self) -> Option<bool> {
11648 self.show_indent_guides
11649 }
11650
11651 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11652 let mut editor_settings = EditorSettings::get_global(cx).clone();
11653 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11654 EditorSettings::override_global(editor_settings, cx);
11655 }
11656
11657 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11658 self.use_relative_line_numbers
11659 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11660 }
11661
11662 pub fn toggle_relative_line_numbers(
11663 &mut self,
11664 _: &ToggleRelativeLineNumbers,
11665 cx: &mut ViewContext<Self>,
11666 ) {
11667 let is_relative = self.should_use_relative_line_numbers(cx);
11668 self.set_relative_line_number(Some(!is_relative), cx)
11669 }
11670
11671 pub fn set_relative_line_number(
11672 &mut self,
11673 is_relative: Option<bool>,
11674 cx: &mut ViewContext<Self>,
11675 ) {
11676 self.use_relative_line_numbers = is_relative;
11677 cx.notify();
11678 }
11679
11680 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11681 self.show_gutter = show_gutter;
11682 cx.notify();
11683 }
11684
11685 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11686 self.show_line_numbers = Some(show_line_numbers);
11687 cx.notify();
11688 }
11689
11690 pub fn set_show_git_diff_gutter(
11691 &mut self,
11692 show_git_diff_gutter: bool,
11693 cx: &mut ViewContext<Self>,
11694 ) {
11695 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11696 cx.notify();
11697 }
11698
11699 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11700 self.show_code_actions = Some(show_code_actions);
11701 cx.notify();
11702 }
11703
11704 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11705 self.show_runnables = Some(show_runnables);
11706 cx.notify();
11707 }
11708
11709 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11710 if self.display_map.read(cx).masked != masked {
11711 self.display_map.update(cx, |map, _| map.masked = masked);
11712 }
11713 cx.notify()
11714 }
11715
11716 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11717 self.show_wrap_guides = Some(show_wrap_guides);
11718 cx.notify();
11719 }
11720
11721 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11722 self.show_indent_guides = Some(show_indent_guides);
11723 cx.notify();
11724 }
11725
11726 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11727 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11728 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11729 if let Some(dir) = file.abs_path(cx).parent() {
11730 return Some(dir.to_owned());
11731 }
11732 }
11733
11734 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11735 return Some(project_path.path.to_path_buf());
11736 }
11737 }
11738
11739 None
11740 }
11741
11742 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11743 self.active_excerpt(cx)?
11744 .1
11745 .read(cx)
11746 .file()
11747 .and_then(|f| f.as_local())
11748 }
11749
11750 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11751 if let Some(target) = self.target_file(cx) {
11752 cx.reveal_path(&target.abs_path(cx));
11753 }
11754 }
11755
11756 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11757 if let Some(file) = self.target_file(cx) {
11758 if let Some(path) = file.abs_path(cx).to_str() {
11759 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11760 }
11761 }
11762 }
11763
11764 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11765 if let Some(file) = self.target_file(cx) {
11766 if let Some(path) = file.path().to_str() {
11767 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11768 }
11769 }
11770 }
11771
11772 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11773 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11774
11775 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11776 self.start_git_blame(true, cx);
11777 }
11778
11779 cx.notify();
11780 }
11781
11782 pub fn toggle_git_blame_inline(
11783 &mut self,
11784 _: &ToggleGitBlameInline,
11785 cx: &mut ViewContext<Self>,
11786 ) {
11787 self.toggle_git_blame_inline_internal(true, cx);
11788 cx.notify();
11789 }
11790
11791 pub fn git_blame_inline_enabled(&self) -> bool {
11792 self.git_blame_inline_enabled
11793 }
11794
11795 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11796 self.show_selection_menu = self
11797 .show_selection_menu
11798 .map(|show_selections_menu| !show_selections_menu)
11799 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11800
11801 cx.notify();
11802 }
11803
11804 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11805 self.show_selection_menu
11806 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11807 }
11808
11809 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11810 if let Some(project) = self.project.as_ref() {
11811 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11812 return;
11813 };
11814
11815 if buffer.read(cx).file().is_none() {
11816 return;
11817 }
11818
11819 let focused = self.focus_handle(cx).contains_focused(cx);
11820
11821 let project = project.clone();
11822 let blame =
11823 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11824 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11825 self.blame = Some(blame);
11826 }
11827 }
11828
11829 fn toggle_git_blame_inline_internal(
11830 &mut self,
11831 user_triggered: bool,
11832 cx: &mut ViewContext<Self>,
11833 ) {
11834 if self.git_blame_inline_enabled {
11835 self.git_blame_inline_enabled = false;
11836 self.show_git_blame_inline = false;
11837 self.show_git_blame_inline_delay_task.take();
11838 } else {
11839 self.git_blame_inline_enabled = true;
11840 self.start_git_blame_inline(user_triggered, cx);
11841 }
11842
11843 cx.notify();
11844 }
11845
11846 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11847 self.start_git_blame(user_triggered, cx);
11848
11849 if ProjectSettings::get_global(cx)
11850 .git
11851 .inline_blame_delay()
11852 .is_some()
11853 {
11854 self.start_inline_blame_timer(cx);
11855 } else {
11856 self.show_git_blame_inline = true
11857 }
11858 }
11859
11860 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11861 self.blame.as_ref()
11862 }
11863
11864 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11865 self.show_git_blame_gutter && self.has_blame_entries(cx)
11866 }
11867
11868 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11869 self.show_git_blame_inline
11870 && self.focus_handle.is_focused(cx)
11871 && !self.newest_selection_head_on_empty_line(cx)
11872 && self.has_blame_entries(cx)
11873 }
11874
11875 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11876 self.blame()
11877 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11878 }
11879
11880 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11881 let cursor_anchor = self.selections.newest_anchor().head();
11882
11883 let snapshot = self.buffer.read(cx).snapshot(cx);
11884 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11885
11886 snapshot.line_len(buffer_row) == 0
11887 }
11888
11889 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11890 let buffer_and_selection = maybe!({
11891 let selection = self.selections.newest::<Point>(cx);
11892 let selection_range = selection.range();
11893
11894 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11895 (buffer, selection_range.start.row..selection_range.end.row)
11896 } else {
11897 let buffer_ranges = self
11898 .buffer()
11899 .read(cx)
11900 .range_to_buffer_ranges(selection_range, cx);
11901
11902 let (buffer, range, _) = if selection.reversed {
11903 buffer_ranges.first()
11904 } else {
11905 buffer_ranges.last()
11906 }?;
11907
11908 let snapshot = buffer.read(cx).snapshot();
11909 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11910 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11911 (buffer.clone(), selection)
11912 };
11913
11914 Some((buffer, selection))
11915 });
11916
11917 let Some((buffer, selection)) = buffer_and_selection else {
11918 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11919 };
11920
11921 let Some(project) = self.project.as_ref() else {
11922 return Task::ready(Err(anyhow!("editor does not have project")));
11923 };
11924
11925 project.update(cx, |project, cx| {
11926 project.get_permalink_to_line(&buffer, selection, cx)
11927 })
11928 }
11929
11930 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11931 let permalink_task = self.get_permalink_to_line(cx);
11932 let workspace = self.workspace();
11933
11934 cx.spawn(|_, mut cx| async move {
11935 match permalink_task.await {
11936 Ok(permalink) => {
11937 cx.update(|cx| {
11938 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11939 })
11940 .ok();
11941 }
11942 Err(err) => {
11943 let message = format!("Failed to copy permalink: {err}");
11944
11945 Err::<(), anyhow::Error>(err).log_err();
11946
11947 if let Some(workspace) = workspace {
11948 workspace
11949 .update(&mut cx, |workspace, cx| {
11950 struct CopyPermalinkToLine;
11951
11952 workspace.show_toast(
11953 Toast::new(
11954 NotificationId::unique::<CopyPermalinkToLine>(),
11955 message,
11956 ),
11957 cx,
11958 )
11959 })
11960 .ok();
11961 }
11962 }
11963 }
11964 })
11965 .detach();
11966 }
11967
11968 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11969 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11970 if let Some(file) = self.target_file(cx) {
11971 if let Some(path) = file.path().to_str() {
11972 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11973 }
11974 }
11975 }
11976
11977 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11978 let permalink_task = self.get_permalink_to_line(cx);
11979 let workspace = self.workspace();
11980
11981 cx.spawn(|_, mut cx| async move {
11982 match permalink_task.await {
11983 Ok(permalink) => {
11984 cx.update(|cx| {
11985 cx.open_url(permalink.as_ref());
11986 })
11987 .ok();
11988 }
11989 Err(err) => {
11990 let message = format!("Failed to open permalink: {err}");
11991
11992 Err::<(), anyhow::Error>(err).log_err();
11993
11994 if let Some(workspace) = workspace {
11995 workspace
11996 .update(&mut cx, |workspace, cx| {
11997 struct OpenPermalinkToLine;
11998
11999 workspace.show_toast(
12000 Toast::new(
12001 NotificationId::unique::<OpenPermalinkToLine>(),
12002 message,
12003 ),
12004 cx,
12005 )
12006 })
12007 .ok();
12008 }
12009 }
12010 }
12011 })
12012 .detach();
12013 }
12014
12015 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12016 /// last highlight added will be used.
12017 ///
12018 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12019 pub fn highlight_rows<T: 'static>(
12020 &mut self,
12021 range: Range<Anchor>,
12022 color: Hsla,
12023 should_autoscroll: bool,
12024 cx: &mut ViewContext<Self>,
12025 ) {
12026 let snapshot = self.buffer().read(cx).snapshot(cx);
12027 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12028 let ix = row_highlights.binary_search_by(|highlight| {
12029 Ordering::Equal
12030 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12031 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12032 });
12033
12034 if let Err(mut ix) = ix {
12035 let index = post_inc(&mut self.highlight_order);
12036
12037 // If this range intersects with the preceding highlight, then merge it with
12038 // the preceding highlight. Otherwise insert a new highlight.
12039 let mut merged = false;
12040 if ix > 0 {
12041 let prev_highlight = &mut row_highlights[ix - 1];
12042 if prev_highlight
12043 .range
12044 .end
12045 .cmp(&range.start, &snapshot)
12046 .is_ge()
12047 {
12048 ix -= 1;
12049 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12050 prev_highlight.range.end = range.end;
12051 }
12052 merged = true;
12053 prev_highlight.index = index;
12054 prev_highlight.color = color;
12055 prev_highlight.should_autoscroll = should_autoscroll;
12056 }
12057 }
12058
12059 if !merged {
12060 row_highlights.insert(
12061 ix,
12062 RowHighlight {
12063 range: range.clone(),
12064 index,
12065 color,
12066 should_autoscroll,
12067 },
12068 );
12069 }
12070
12071 // If any of the following highlights intersect with this one, merge them.
12072 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12073 let highlight = &row_highlights[ix];
12074 if next_highlight
12075 .range
12076 .start
12077 .cmp(&highlight.range.end, &snapshot)
12078 .is_le()
12079 {
12080 if next_highlight
12081 .range
12082 .end
12083 .cmp(&highlight.range.end, &snapshot)
12084 .is_gt()
12085 {
12086 row_highlights[ix].range.end = next_highlight.range.end;
12087 }
12088 row_highlights.remove(ix + 1);
12089 } else {
12090 break;
12091 }
12092 }
12093 }
12094 }
12095
12096 /// Remove any highlighted row ranges of the given type that intersect the
12097 /// given ranges.
12098 pub fn remove_highlighted_rows<T: 'static>(
12099 &mut self,
12100 ranges_to_remove: Vec<Range<Anchor>>,
12101 cx: &mut ViewContext<Self>,
12102 ) {
12103 let snapshot = self.buffer().read(cx).snapshot(cx);
12104 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12105 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12106 row_highlights.retain(|highlight| {
12107 while let Some(range_to_remove) = ranges_to_remove.peek() {
12108 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12109 Ordering::Less | Ordering::Equal => {
12110 ranges_to_remove.next();
12111 }
12112 Ordering::Greater => {
12113 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12114 Ordering::Less | Ordering::Equal => {
12115 return false;
12116 }
12117 Ordering::Greater => break,
12118 }
12119 }
12120 }
12121 }
12122
12123 true
12124 })
12125 }
12126
12127 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12128 pub fn clear_row_highlights<T: 'static>(&mut self) {
12129 self.highlighted_rows.remove(&TypeId::of::<T>());
12130 }
12131
12132 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12133 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12134 self.highlighted_rows
12135 .get(&TypeId::of::<T>())
12136 .map_or(&[] as &[_], |vec| vec.as_slice())
12137 .iter()
12138 .map(|highlight| (highlight.range.clone(), highlight.color))
12139 }
12140
12141 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12142 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12143 /// Allows to ignore certain kinds of highlights.
12144 pub fn highlighted_display_rows(
12145 &mut self,
12146 cx: &mut WindowContext,
12147 ) -> BTreeMap<DisplayRow, Hsla> {
12148 let snapshot = self.snapshot(cx);
12149 let mut used_highlight_orders = HashMap::default();
12150 self.highlighted_rows
12151 .iter()
12152 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12153 .fold(
12154 BTreeMap::<DisplayRow, Hsla>::new(),
12155 |mut unique_rows, highlight| {
12156 let start = highlight.range.start.to_display_point(&snapshot);
12157 let end = highlight.range.end.to_display_point(&snapshot);
12158 let start_row = start.row().0;
12159 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12160 && end.column() == 0
12161 {
12162 end.row().0.saturating_sub(1)
12163 } else {
12164 end.row().0
12165 };
12166 for row in start_row..=end_row {
12167 let used_index =
12168 used_highlight_orders.entry(row).or_insert(highlight.index);
12169 if highlight.index >= *used_index {
12170 *used_index = highlight.index;
12171 unique_rows.insert(DisplayRow(row), highlight.color);
12172 }
12173 }
12174 unique_rows
12175 },
12176 )
12177 }
12178
12179 pub fn highlighted_display_row_for_autoscroll(
12180 &self,
12181 snapshot: &DisplaySnapshot,
12182 ) -> Option<DisplayRow> {
12183 self.highlighted_rows
12184 .values()
12185 .flat_map(|highlighted_rows| highlighted_rows.iter())
12186 .filter_map(|highlight| {
12187 if highlight.should_autoscroll {
12188 Some(highlight.range.start.to_display_point(snapshot).row())
12189 } else {
12190 None
12191 }
12192 })
12193 .min()
12194 }
12195
12196 pub fn set_search_within_ranges(
12197 &mut self,
12198 ranges: &[Range<Anchor>],
12199 cx: &mut ViewContext<Self>,
12200 ) {
12201 self.highlight_background::<SearchWithinRange>(
12202 ranges,
12203 |colors| colors.editor_document_highlight_read_background,
12204 cx,
12205 )
12206 }
12207
12208 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12209 self.breadcrumb_header = Some(new_header);
12210 }
12211
12212 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12213 self.clear_background_highlights::<SearchWithinRange>(cx);
12214 }
12215
12216 pub fn highlight_background<T: 'static>(
12217 &mut self,
12218 ranges: &[Range<Anchor>],
12219 color_fetcher: fn(&ThemeColors) -> Hsla,
12220 cx: &mut ViewContext<Self>,
12221 ) {
12222 self.background_highlights
12223 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12224 self.scrollbar_marker_state.dirty = true;
12225 cx.notify();
12226 }
12227
12228 pub fn clear_background_highlights<T: 'static>(
12229 &mut self,
12230 cx: &mut ViewContext<Self>,
12231 ) -> Option<BackgroundHighlight> {
12232 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12233 if !text_highlights.1.is_empty() {
12234 self.scrollbar_marker_state.dirty = true;
12235 cx.notify();
12236 }
12237 Some(text_highlights)
12238 }
12239
12240 pub fn highlight_gutter<T: 'static>(
12241 &mut self,
12242 ranges: &[Range<Anchor>],
12243 color_fetcher: fn(&AppContext) -> Hsla,
12244 cx: &mut ViewContext<Self>,
12245 ) {
12246 self.gutter_highlights
12247 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12248 cx.notify();
12249 }
12250
12251 pub fn clear_gutter_highlights<T: 'static>(
12252 &mut self,
12253 cx: &mut ViewContext<Self>,
12254 ) -> Option<GutterHighlight> {
12255 cx.notify();
12256 self.gutter_highlights.remove(&TypeId::of::<T>())
12257 }
12258
12259 #[cfg(feature = "test-support")]
12260 pub fn all_text_background_highlights(
12261 &mut self,
12262 cx: &mut ViewContext<Self>,
12263 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12264 let snapshot = self.snapshot(cx);
12265 let buffer = &snapshot.buffer_snapshot;
12266 let start = buffer.anchor_before(0);
12267 let end = buffer.anchor_after(buffer.len());
12268 let theme = cx.theme().colors();
12269 self.background_highlights_in_range(start..end, &snapshot, theme)
12270 }
12271
12272 #[cfg(feature = "test-support")]
12273 pub fn search_background_highlights(
12274 &mut self,
12275 cx: &mut ViewContext<Self>,
12276 ) -> Vec<Range<Point>> {
12277 let snapshot = self.buffer().read(cx).snapshot(cx);
12278
12279 let highlights = self
12280 .background_highlights
12281 .get(&TypeId::of::<items::BufferSearchHighlights>());
12282
12283 if let Some((_color, ranges)) = highlights {
12284 ranges
12285 .iter()
12286 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12287 .collect_vec()
12288 } else {
12289 vec![]
12290 }
12291 }
12292
12293 fn document_highlights_for_position<'a>(
12294 &'a self,
12295 position: Anchor,
12296 buffer: &'a MultiBufferSnapshot,
12297 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12298 let read_highlights = self
12299 .background_highlights
12300 .get(&TypeId::of::<DocumentHighlightRead>())
12301 .map(|h| &h.1);
12302 let write_highlights = self
12303 .background_highlights
12304 .get(&TypeId::of::<DocumentHighlightWrite>())
12305 .map(|h| &h.1);
12306 let left_position = position.bias_left(buffer);
12307 let right_position = position.bias_right(buffer);
12308 read_highlights
12309 .into_iter()
12310 .chain(write_highlights)
12311 .flat_map(move |ranges| {
12312 let start_ix = match ranges.binary_search_by(|probe| {
12313 let cmp = probe.end.cmp(&left_position, buffer);
12314 if cmp.is_ge() {
12315 Ordering::Greater
12316 } else {
12317 Ordering::Less
12318 }
12319 }) {
12320 Ok(i) | Err(i) => i,
12321 };
12322
12323 ranges[start_ix..]
12324 .iter()
12325 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12326 })
12327 }
12328
12329 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12330 self.background_highlights
12331 .get(&TypeId::of::<T>())
12332 .map_or(false, |(_, highlights)| !highlights.is_empty())
12333 }
12334
12335 pub fn background_highlights_in_range(
12336 &self,
12337 search_range: Range<Anchor>,
12338 display_snapshot: &DisplaySnapshot,
12339 theme: &ThemeColors,
12340 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12341 let mut results = Vec::new();
12342 for (color_fetcher, ranges) in self.background_highlights.values() {
12343 let color = color_fetcher(theme);
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 for range in &ranges[start_ix..] {
12357 if range
12358 .start
12359 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12360 .is_ge()
12361 {
12362 break;
12363 }
12364
12365 let start = range.start.to_display_point(display_snapshot);
12366 let end = range.end.to_display_point(display_snapshot);
12367 results.push((start..end, color))
12368 }
12369 }
12370 results
12371 }
12372
12373 pub fn background_highlight_row_ranges<T: 'static>(
12374 &self,
12375 search_range: Range<Anchor>,
12376 display_snapshot: &DisplaySnapshot,
12377 count: usize,
12378 ) -> Vec<RangeInclusive<DisplayPoint>> {
12379 let mut results = Vec::new();
12380 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12381 return vec![];
12382 };
12383
12384 let start_ix = match ranges.binary_search_by(|probe| {
12385 let cmp = probe
12386 .end
12387 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12388 if cmp.is_gt() {
12389 Ordering::Greater
12390 } else {
12391 Ordering::Less
12392 }
12393 }) {
12394 Ok(i) | Err(i) => i,
12395 };
12396 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12397 if let (Some(start_display), Some(end_display)) = (start, end) {
12398 results.push(
12399 start_display.to_display_point(display_snapshot)
12400 ..=end_display.to_display_point(display_snapshot),
12401 );
12402 }
12403 };
12404 let mut start_row: Option<Point> = None;
12405 let mut end_row: Option<Point> = None;
12406 if ranges.len() > count {
12407 return Vec::new();
12408 }
12409 for range in &ranges[start_ix..] {
12410 if range
12411 .start
12412 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12413 .is_ge()
12414 {
12415 break;
12416 }
12417 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12418 if let Some(current_row) = &end_row {
12419 if end.row == current_row.row {
12420 continue;
12421 }
12422 }
12423 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12424 if start_row.is_none() {
12425 assert_eq!(end_row, None);
12426 start_row = Some(start);
12427 end_row = Some(end);
12428 continue;
12429 }
12430 if let Some(current_end) = end_row.as_mut() {
12431 if start.row > current_end.row + 1 {
12432 push_region(start_row, end_row);
12433 start_row = Some(start);
12434 end_row = Some(end);
12435 } else {
12436 // Merge two hunks.
12437 *current_end = end;
12438 }
12439 } else {
12440 unreachable!();
12441 }
12442 }
12443 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12444 push_region(start_row, end_row);
12445 results
12446 }
12447
12448 pub fn gutter_highlights_in_range(
12449 &self,
12450 search_range: Range<Anchor>,
12451 display_snapshot: &DisplaySnapshot,
12452 cx: &AppContext,
12453 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12454 let mut results = Vec::new();
12455 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12456 let color = color_fetcher(cx);
12457 let start_ix = match ranges.binary_search_by(|probe| {
12458 let cmp = probe
12459 .end
12460 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12461 if cmp.is_gt() {
12462 Ordering::Greater
12463 } else {
12464 Ordering::Less
12465 }
12466 }) {
12467 Ok(i) | Err(i) => i,
12468 };
12469 for range in &ranges[start_ix..] {
12470 if range
12471 .start
12472 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12473 .is_ge()
12474 {
12475 break;
12476 }
12477
12478 let start = range.start.to_display_point(display_snapshot);
12479 let end = range.end.to_display_point(display_snapshot);
12480 results.push((start..end, color))
12481 }
12482 }
12483 results
12484 }
12485
12486 /// Get the text ranges corresponding to the redaction query
12487 pub fn redacted_ranges(
12488 &self,
12489 search_range: Range<Anchor>,
12490 display_snapshot: &DisplaySnapshot,
12491 cx: &WindowContext,
12492 ) -> Vec<Range<DisplayPoint>> {
12493 display_snapshot
12494 .buffer_snapshot
12495 .redacted_ranges(search_range, |file| {
12496 if let Some(file) = file {
12497 file.is_private()
12498 && EditorSettings::get(
12499 Some(SettingsLocation {
12500 worktree_id: file.worktree_id(cx),
12501 path: file.path().as_ref(),
12502 }),
12503 cx,
12504 )
12505 .redact_private_values
12506 } else {
12507 false
12508 }
12509 })
12510 .map(|range| {
12511 range.start.to_display_point(display_snapshot)
12512 ..range.end.to_display_point(display_snapshot)
12513 })
12514 .collect()
12515 }
12516
12517 pub fn highlight_text<T: 'static>(
12518 &mut self,
12519 ranges: Vec<Range<Anchor>>,
12520 style: HighlightStyle,
12521 cx: &mut ViewContext<Self>,
12522 ) {
12523 self.display_map.update(cx, |map, _| {
12524 map.highlight_text(TypeId::of::<T>(), ranges, style)
12525 });
12526 cx.notify();
12527 }
12528
12529 pub(crate) fn highlight_inlays<T: 'static>(
12530 &mut self,
12531 highlights: Vec<InlayHighlight>,
12532 style: HighlightStyle,
12533 cx: &mut ViewContext<Self>,
12534 ) {
12535 self.display_map.update(cx, |map, _| {
12536 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12537 });
12538 cx.notify();
12539 }
12540
12541 pub fn text_highlights<'a, T: 'static>(
12542 &'a self,
12543 cx: &'a AppContext,
12544 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12545 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12546 }
12547
12548 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12549 let cleared = self
12550 .display_map
12551 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12552 if cleared {
12553 cx.notify();
12554 }
12555 }
12556
12557 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12558 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12559 && self.focus_handle.is_focused(cx)
12560 }
12561
12562 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12563 self.show_cursor_when_unfocused = is_enabled;
12564 cx.notify();
12565 }
12566
12567 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12568 cx.notify();
12569 }
12570
12571 fn on_buffer_event(
12572 &mut self,
12573 multibuffer: Model<MultiBuffer>,
12574 event: &multi_buffer::Event,
12575 cx: &mut ViewContext<Self>,
12576 ) {
12577 match event {
12578 multi_buffer::Event::Edited {
12579 singleton_buffer_edited,
12580 } => {
12581 self.scrollbar_marker_state.dirty = true;
12582 self.active_indent_guides_state.dirty = true;
12583 self.refresh_active_diagnostics(cx);
12584 self.refresh_code_actions(cx);
12585 if self.has_active_inline_completion(cx) {
12586 self.update_visible_inline_completion(cx);
12587 }
12588 cx.emit(EditorEvent::BufferEdited);
12589 cx.emit(SearchEvent::MatchesInvalidated);
12590 if *singleton_buffer_edited {
12591 if let Some(project) = &self.project {
12592 let project = project.read(cx);
12593 #[allow(clippy::mutable_key_type)]
12594 let languages_affected = multibuffer
12595 .read(cx)
12596 .all_buffers()
12597 .into_iter()
12598 .filter_map(|buffer| {
12599 let buffer = buffer.read(cx);
12600 let language = buffer.language()?;
12601 if project.is_local()
12602 && project.language_servers_for_buffer(buffer, cx).count() == 0
12603 {
12604 None
12605 } else {
12606 Some(language)
12607 }
12608 })
12609 .cloned()
12610 .collect::<HashSet<_>>();
12611 if !languages_affected.is_empty() {
12612 self.refresh_inlay_hints(
12613 InlayHintRefreshReason::BufferEdited(languages_affected),
12614 cx,
12615 );
12616 }
12617 }
12618 }
12619
12620 let Some(project) = &self.project else { return };
12621 let (telemetry, is_via_ssh) = {
12622 let project = project.read(cx);
12623 let telemetry = project.client().telemetry().clone();
12624 let is_via_ssh = project.is_via_ssh();
12625 (telemetry, is_via_ssh)
12626 };
12627 refresh_linked_ranges(self, cx);
12628 telemetry.log_edit_event("editor", is_via_ssh);
12629 }
12630 multi_buffer::Event::ExcerptsAdded {
12631 buffer,
12632 predecessor,
12633 excerpts,
12634 } => {
12635 self.tasks_update_task = Some(self.refresh_runnables(cx));
12636 cx.emit(EditorEvent::ExcerptsAdded {
12637 buffer: buffer.clone(),
12638 predecessor: *predecessor,
12639 excerpts: excerpts.clone(),
12640 });
12641 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12642 }
12643 multi_buffer::Event::ExcerptsRemoved { ids } => {
12644 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12645 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12646 }
12647 multi_buffer::Event::ExcerptsEdited { ids } => {
12648 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12649 }
12650 multi_buffer::Event::ExcerptsExpanded { ids } => {
12651 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12652 }
12653 multi_buffer::Event::Reparsed(buffer_id) => {
12654 self.tasks_update_task = Some(self.refresh_runnables(cx));
12655
12656 cx.emit(EditorEvent::Reparsed(*buffer_id));
12657 }
12658 multi_buffer::Event::LanguageChanged(buffer_id) => {
12659 linked_editing_ranges::refresh_linked_ranges(self, cx);
12660 cx.emit(EditorEvent::Reparsed(*buffer_id));
12661 cx.notify();
12662 }
12663 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12664 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12665 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12666 cx.emit(EditorEvent::TitleChanged)
12667 }
12668 multi_buffer::Event::DiffBaseChanged => {
12669 self.scrollbar_marker_state.dirty = true;
12670 cx.emit(EditorEvent::DiffBaseChanged);
12671 cx.notify();
12672 }
12673 multi_buffer::Event::DiffUpdated { buffer } => {
12674 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12675 cx.notify();
12676 }
12677 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12678 multi_buffer::Event::DiagnosticsUpdated => {
12679 self.refresh_active_diagnostics(cx);
12680 self.scrollbar_marker_state.dirty = true;
12681 cx.notify();
12682 }
12683 _ => {}
12684 };
12685 }
12686
12687 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12688 cx.notify();
12689 }
12690
12691 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12692 self.tasks_update_task = Some(self.refresh_runnables(cx));
12693 self.refresh_inline_completion(true, false, cx);
12694 self.refresh_inlay_hints(
12695 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12696 self.selections.newest_anchor().head(),
12697 &self.buffer.read(cx).snapshot(cx),
12698 cx,
12699 )),
12700 cx,
12701 );
12702
12703 let old_cursor_shape = self.cursor_shape;
12704
12705 {
12706 let editor_settings = EditorSettings::get_global(cx);
12707 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12708 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12709 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12710 }
12711
12712 if old_cursor_shape != self.cursor_shape {
12713 cx.emit(EditorEvent::CursorShapeChanged);
12714 }
12715
12716 let project_settings = ProjectSettings::get_global(cx);
12717 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12718
12719 if self.mode == EditorMode::Full {
12720 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12721 if self.git_blame_inline_enabled != inline_blame_enabled {
12722 self.toggle_git_blame_inline_internal(false, cx);
12723 }
12724 }
12725
12726 cx.notify();
12727 }
12728
12729 pub fn set_searchable(&mut self, searchable: bool) {
12730 self.searchable = searchable;
12731 }
12732
12733 pub fn searchable(&self) -> bool {
12734 self.searchable
12735 }
12736
12737 fn open_proposed_changes_editor(
12738 &mut self,
12739 _: &OpenProposedChangesEditor,
12740 cx: &mut ViewContext<Self>,
12741 ) {
12742 let Some(workspace) = self.workspace() else {
12743 cx.propagate();
12744 return;
12745 };
12746
12747 let selections = self.selections.all::<usize>(cx);
12748 let buffer = self.buffer.read(cx);
12749 let mut new_selections_by_buffer = HashMap::default();
12750 for selection in selections {
12751 for (buffer, range, _) in
12752 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12753 {
12754 let mut range = range.to_point(buffer.read(cx));
12755 range.start.column = 0;
12756 range.end.column = buffer.read(cx).line_len(range.end.row);
12757 new_selections_by_buffer
12758 .entry(buffer)
12759 .or_insert(Vec::new())
12760 .push(range)
12761 }
12762 }
12763
12764 let proposed_changes_buffers = new_selections_by_buffer
12765 .into_iter()
12766 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12767 .collect::<Vec<_>>();
12768 let proposed_changes_editor = cx.new_view(|cx| {
12769 ProposedChangesEditor::new(
12770 "Proposed changes",
12771 proposed_changes_buffers,
12772 self.project.clone(),
12773 cx,
12774 )
12775 });
12776
12777 cx.window_context().defer(move |cx| {
12778 workspace.update(cx, |workspace, cx| {
12779 workspace.active_pane().update(cx, |pane, cx| {
12780 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12781 });
12782 });
12783 });
12784 }
12785
12786 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12787 self.open_excerpts_common(None, true, cx)
12788 }
12789
12790 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12791 self.open_excerpts_common(None, false, cx)
12792 }
12793
12794 fn open_excerpts_common(
12795 &mut self,
12796 jump_data: Option<JumpData>,
12797 split: bool,
12798 cx: &mut ViewContext<Self>,
12799 ) {
12800 let Some(workspace) = self.workspace() else {
12801 cx.propagate();
12802 return;
12803 };
12804
12805 if self.buffer.read(cx).is_singleton() {
12806 cx.propagate();
12807 return;
12808 }
12809
12810 let mut new_selections_by_buffer = HashMap::default();
12811 match &jump_data {
12812 Some(jump_data) => {
12813 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12814 if let Some(buffer) = multi_buffer_snapshot
12815 .buffer_id_for_excerpt(jump_data.excerpt_id)
12816 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12817 {
12818 let buffer_snapshot = buffer.read(cx).snapshot();
12819 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12820 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12821 } else {
12822 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12823 };
12824 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12825 new_selections_by_buffer.insert(
12826 buffer,
12827 (
12828 vec![jump_to_offset..jump_to_offset],
12829 Some(jump_data.line_offset_from_top),
12830 ),
12831 );
12832 }
12833 }
12834 None => {
12835 let selections = self.selections.all::<usize>(cx);
12836 let buffer = self.buffer.read(cx);
12837 for selection in selections {
12838 for (mut buffer_handle, mut range, _) in
12839 buffer.range_to_buffer_ranges(selection.range(), cx)
12840 {
12841 // When editing branch buffers, jump to the corresponding location
12842 // in their base buffer.
12843 let buffer = buffer_handle.read(cx);
12844 if let Some(base_buffer) = buffer.diff_base_buffer() {
12845 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12846 buffer_handle = base_buffer;
12847 }
12848
12849 if selection.reversed {
12850 mem::swap(&mut range.start, &mut range.end);
12851 }
12852 new_selections_by_buffer
12853 .entry(buffer_handle)
12854 .or_insert((Vec::new(), None))
12855 .0
12856 .push(range)
12857 }
12858 }
12859 }
12860 }
12861
12862 if new_selections_by_buffer.is_empty() {
12863 return;
12864 }
12865
12866 // We defer the pane interaction because we ourselves are a workspace item
12867 // and activating a new item causes the pane to call a method on us reentrantly,
12868 // which panics if we're on the stack.
12869 cx.window_context().defer(move |cx| {
12870 workspace.update(cx, |workspace, cx| {
12871 let pane = if split {
12872 workspace.adjacent_pane(cx)
12873 } else {
12874 workspace.active_pane().clone()
12875 };
12876
12877 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12878 let editor = buffer
12879 .read(cx)
12880 .file()
12881 .is_none()
12882 .then(|| {
12883 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12884 // so `workspace.open_project_item` will never find them, always opening a new editor.
12885 // Instead, we try to activate the existing editor in the pane first.
12886 let (editor, pane_item_index) =
12887 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12888 let editor = item.downcast::<Editor>()?;
12889 let singleton_buffer =
12890 editor.read(cx).buffer().read(cx).as_singleton()?;
12891 if singleton_buffer == buffer {
12892 Some((editor, i))
12893 } else {
12894 None
12895 }
12896 })?;
12897 pane.update(cx, |pane, cx| {
12898 pane.activate_item(pane_item_index, true, true, cx)
12899 });
12900 Some(editor)
12901 })
12902 .flatten()
12903 .unwrap_or_else(|| {
12904 workspace.open_project_item::<Self>(
12905 pane.clone(),
12906 buffer,
12907 true,
12908 true,
12909 cx,
12910 )
12911 });
12912
12913 editor.update(cx, |editor, cx| {
12914 let autoscroll = match scroll_offset {
12915 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12916 None => Autoscroll::newest(),
12917 };
12918 let nav_history = editor.nav_history.take();
12919 editor.change_selections(Some(autoscroll), cx, |s| {
12920 s.select_ranges(ranges);
12921 });
12922 editor.nav_history = nav_history;
12923 });
12924 }
12925 })
12926 });
12927 }
12928
12929 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12930 let snapshot = self.buffer.read(cx).read(cx);
12931 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12932 Some(
12933 ranges
12934 .iter()
12935 .map(move |range| {
12936 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12937 })
12938 .collect(),
12939 )
12940 }
12941
12942 fn selection_replacement_ranges(
12943 &self,
12944 range: Range<OffsetUtf16>,
12945 cx: &mut AppContext,
12946 ) -> Vec<Range<OffsetUtf16>> {
12947 let selections = self.selections.all::<OffsetUtf16>(cx);
12948 let newest_selection = selections
12949 .iter()
12950 .max_by_key(|selection| selection.id)
12951 .unwrap();
12952 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12953 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12954 let snapshot = self.buffer.read(cx).read(cx);
12955 selections
12956 .into_iter()
12957 .map(|mut selection| {
12958 selection.start.0 =
12959 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12960 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12961 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12962 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12963 })
12964 .collect()
12965 }
12966
12967 fn report_editor_event(
12968 &self,
12969 operation: &'static str,
12970 file_extension: Option<String>,
12971 cx: &AppContext,
12972 ) {
12973 if cfg!(any(test, feature = "test-support")) {
12974 return;
12975 }
12976
12977 let Some(project) = &self.project else { return };
12978
12979 // If None, we are in a file without an extension
12980 let file = self
12981 .buffer
12982 .read(cx)
12983 .as_singleton()
12984 .and_then(|b| b.read(cx).file());
12985 let file_extension = file_extension.or(file
12986 .as_ref()
12987 .and_then(|file| Path::new(file.file_name(cx)).extension())
12988 .and_then(|e| e.to_str())
12989 .map(|a| a.to_string()));
12990
12991 let vim_mode = cx
12992 .global::<SettingsStore>()
12993 .raw_user_settings()
12994 .get("vim_mode")
12995 == Some(&serde_json::Value::Bool(true));
12996
12997 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12998 == language::language_settings::InlineCompletionProvider::Copilot;
12999 let copilot_enabled_for_language = self
13000 .buffer
13001 .read(cx)
13002 .settings_at(0, cx)
13003 .show_inline_completions;
13004
13005 let project = project.read(cx);
13006 let telemetry = project.client().telemetry().clone();
13007 telemetry.report_editor_event(
13008 file_extension,
13009 vim_mode,
13010 operation,
13011 copilot_enabled,
13012 copilot_enabled_for_language,
13013 project.is_via_ssh(),
13014 )
13015 }
13016
13017 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
13018 /// with each line being an array of {text, highlight} objects.
13019 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
13020 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
13021 return;
13022 };
13023
13024 #[derive(Serialize)]
13025 struct Chunk<'a> {
13026 text: String,
13027 highlight: Option<&'a str>,
13028 }
13029
13030 let snapshot = buffer.read(cx).snapshot();
13031 let range = self
13032 .selected_text_range(false, cx)
13033 .and_then(|selection| {
13034 if selection.range.is_empty() {
13035 None
13036 } else {
13037 Some(selection.range)
13038 }
13039 })
13040 .unwrap_or_else(|| 0..snapshot.len());
13041
13042 let chunks = snapshot.chunks(range, true);
13043 let mut lines = Vec::new();
13044 let mut line: VecDeque<Chunk> = VecDeque::new();
13045
13046 let Some(style) = self.style.as_ref() else {
13047 return;
13048 };
13049
13050 for chunk in chunks {
13051 let highlight = chunk
13052 .syntax_highlight_id
13053 .and_then(|id| id.name(&style.syntax));
13054 let mut chunk_lines = chunk.text.split('\n').peekable();
13055 while let Some(text) = chunk_lines.next() {
13056 let mut merged_with_last_token = false;
13057 if let Some(last_token) = line.back_mut() {
13058 if last_token.highlight == highlight {
13059 last_token.text.push_str(text);
13060 merged_with_last_token = true;
13061 }
13062 }
13063
13064 if !merged_with_last_token {
13065 line.push_back(Chunk {
13066 text: text.into(),
13067 highlight,
13068 });
13069 }
13070
13071 if chunk_lines.peek().is_some() {
13072 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13073 line.pop_front();
13074 }
13075 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13076 line.pop_back();
13077 }
13078
13079 lines.push(mem::take(&mut line));
13080 }
13081 }
13082 }
13083
13084 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13085 return;
13086 };
13087 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13088 }
13089
13090 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13091 &self.inlay_hint_cache
13092 }
13093
13094 pub fn replay_insert_event(
13095 &mut self,
13096 text: &str,
13097 relative_utf16_range: Option<Range<isize>>,
13098 cx: &mut ViewContext<Self>,
13099 ) {
13100 if !self.input_enabled {
13101 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13102 return;
13103 }
13104 if let Some(relative_utf16_range) = relative_utf16_range {
13105 let selections = self.selections.all::<OffsetUtf16>(cx);
13106 self.change_selections(None, cx, |s| {
13107 let new_ranges = selections.into_iter().map(|range| {
13108 let start = OffsetUtf16(
13109 range
13110 .head()
13111 .0
13112 .saturating_add_signed(relative_utf16_range.start),
13113 );
13114 let end = OffsetUtf16(
13115 range
13116 .head()
13117 .0
13118 .saturating_add_signed(relative_utf16_range.end),
13119 );
13120 start..end
13121 });
13122 s.select_ranges(new_ranges);
13123 });
13124 }
13125
13126 self.handle_input(text, cx);
13127 }
13128
13129 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13130 let Some(provider) = self.semantics_provider.as_ref() else {
13131 return false;
13132 };
13133
13134 let mut supports = false;
13135 self.buffer().read(cx).for_each_buffer(|buffer| {
13136 supports |= provider.supports_inlay_hints(buffer, cx);
13137 });
13138 supports
13139 }
13140
13141 pub fn focus(&self, cx: &mut WindowContext) {
13142 cx.focus(&self.focus_handle)
13143 }
13144
13145 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13146 self.focus_handle.is_focused(cx)
13147 }
13148
13149 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13150 cx.emit(EditorEvent::Focused);
13151
13152 if let Some(descendant) = self
13153 .last_focused_descendant
13154 .take()
13155 .and_then(|descendant| descendant.upgrade())
13156 {
13157 cx.focus(&descendant);
13158 } else {
13159 if let Some(blame) = self.blame.as_ref() {
13160 blame.update(cx, GitBlame::focus)
13161 }
13162
13163 self.blink_manager.update(cx, BlinkManager::enable);
13164 self.show_cursor_names(cx);
13165 self.buffer.update(cx, |buffer, cx| {
13166 buffer.finalize_last_transaction(cx);
13167 if self.leader_peer_id.is_none() {
13168 buffer.set_active_selections(
13169 &self.selections.disjoint_anchors(),
13170 self.selections.line_mode,
13171 self.cursor_shape,
13172 cx,
13173 );
13174 }
13175 });
13176 }
13177 }
13178
13179 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13180 cx.emit(EditorEvent::FocusedIn)
13181 }
13182
13183 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13184 if event.blurred != self.focus_handle {
13185 self.last_focused_descendant = Some(event.blurred);
13186 }
13187 }
13188
13189 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13190 self.blink_manager.update(cx, BlinkManager::disable);
13191 self.buffer
13192 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13193
13194 if let Some(blame) = self.blame.as_ref() {
13195 blame.update(cx, GitBlame::blur)
13196 }
13197 if !self.hover_state.focused(cx) {
13198 hide_hover(self, cx);
13199 }
13200
13201 self.hide_context_menu(cx);
13202 cx.emit(EditorEvent::Blurred);
13203 cx.notify();
13204 }
13205
13206 pub fn register_action<A: Action>(
13207 &mut self,
13208 listener: impl Fn(&A, &mut WindowContext) + 'static,
13209 ) -> Subscription {
13210 let id = self.next_editor_action_id.post_inc();
13211 let listener = Arc::new(listener);
13212 self.editor_actions.borrow_mut().insert(
13213 id,
13214 Box::new(move |cx| {
13215 let cx = cx.window_context();
13216 let listener = listener.clone();
13217 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13218 let action = action.downcast_ref().unwrap();
13219 if phase == DispatchPhase::Bubble {
13220 listener(action, cx)
13221 }
13222 })
13223 }),
13224 );
13225
13226 let editor_actions = self.editor_actions.clone();
13227 Subscription::new(move || {
13228 editor_actions.borrow_mut().remove(&id);
13229 })
13230 }
13231
13232 pub fn file_header_size(&self) -> u32 {
13233 FILE_HEADER_HEIGHT
13234 }
13235
13236 pub fn revert(
13237 &mut self,
13238 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13239 cx: &mut ViewContext<Self>,
13240 ) {
13241 self.buffer().update(cx, |multi_buffer, cx| {
13242 for (buffer_id, changes) in revert_changes {
13243 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13244 buffer.update(cx, |buffer, cx| {
13245 buffer.edit(
13246 changes.into_iter().map(|(range, text)| {
13247 (range, text.to_string().map(Arc::<str>::from))
13248 }),
13249 None,
13250 cx,
13251 );
13252 });
13253 }
13254 }
13255 });
13256 self.change_selections(None, cx, |selections| selections.refresh());
13257 }
13258
13259 pub fn to_pixel_point(
13260 &mut self,
13261 source: multi_buffer::Anchor,
13262 editor_snapshot: &EditorSnapshot,
13263 cx: &mut ViewContext<Self>,
13264 ) -> Option<gpui::Point<Pixels>> {
13265 let source_point = source.to_display_point(editor_snapshot);
13266 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13267 }
13268
13269 pub fn display_to_pixel_point(
13270 &mut self,
13271 source: DisplayPoint,
13272 editor_snapshot: &EditorSnapshot,
13273 cx: &mut ViewContext<Self>,
13274 ) -> Option<gpui::Point<Pixels>> {
13275 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13276 let text_layout_details = self.text_layout_details(cx);
13277 let scroll_top = text_layout_details
13278 .scroll_anchor
13279 .scroll_position(editor_snapshot)
13280 .y;
13281
13282 if source.row().as_f32() < scroll_top.floor() {
13283 return None;
13284 }
13285 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13286 let source_y = line_height * (source.row().as_f32() - scroll_top);
13287 Some(gpui::Point::new(source_x, source_y))
13288 }
13289
13290 pub fn has_active_completions_menu(&self) -> bool {
13291 self.context_menu.read().as_ref().map_or(false, |menu| {
13292 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13293 })
13294 }
13295
13296 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13297 self.addons
13298 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13299 }
13300
13301 pub fn unregister_addon<T: Addon>(&mut self) {
13302 self.addons.remove(&std::any::TypeId::of::<T>());
13303 }
13304
13305 pub fn addon<T: Addon>(&self) -> Option<&T> {
13306 let type_id = std::any::TypeId::of::<T>();
13307 self.addons
13308 .get(&type_id)
13309 .and_then(|item| item.to_any().downcast_ref::<T>())
13310 }
13311}
13312
13313fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13314 let tab_size = tab_size.get() as usize;
13315 let mut width = offset;
13316
13317 for ch in text.chars() {
13318 width += if ch == '\t' {
13319 tab_size - (width % tab_size)
13320 } else {
13321 1
13322 };
13323 }
13324
13325 width - offset
13326}
13327
13328#[cfg(test)]
13329mod tests {
13330 use super::*;
13331
13332 #[test]
13333 fn test_string_size_with_expanded_tabs() {
13334 let nz = |val| NonZeroU32::new(val).unwrap();
13335 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13336 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13337 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13338 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13339 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13340 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13341 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13342 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13343 }
13344}
13345
13346/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13347struct WordBreakingTokenizer<'a> {
13348 input: &'a str,
13349}
13350
13351impl<'a> WordBreakingTokenizer<'a> {
13352 fn new(input: &'a str) -> Self {
13353 Self { input }
13354 }
13355}
13356
13357fn is_char_ideographic(ch: char) -> bool {
13358 use unicode_script::Script::*;
13359 use unicode_script::UnicodeScript;
13360 matches!(ch.script(), Han | Tangut | Yi)
13361}
13362
13363fn is_grapheme_ideographic(text: &str) -> bool {
13364 text.chars().any(is_char_ideographic)
13365}
13366
13367fn is_grapheme_whitespace(text: &str) -> bool {
13368 text.chars().any(|x| x.is_whitespace())
13369}
13370
13371fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13372 text.chars().next().map_or(false, |ch| {
13373 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13374 })
13375}
13376
13377#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13378struct WordBreakToken<'a> {
13379 token: &'a str,
13380 grapheme_len: usize,
13381 is_whitespace: bool,
13382}
13383
13384impl<'a> Iterator for WordBreakingTokenizer<'a> {
13385 /// Yields a span, the count of graphemes in the token, and whether it was
13386 /// whitespace. Note that it also breaks at word boundaries.
13387 type Item = WordBreakToken<'a>;
13388
13389 fn next(&mut self) -> Option<Self::Item> {
13390 use unicode_segmentation::UnicodeSegmentation;
13391 if self.input.is_empty() {
13392 return None;
13393 }
13394
13395 let mut iter = self.input.graphemes(true).peekable();
13396 let mut offset = 0;
13397 let mut graphemes = 0;
13398 if let Some(first_grapheme) = iter.next() {
13399 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13400 offset += first_grapheme.len();
13401 graphemes += 1;
13402 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13403 if let Some(grapheme) = iter.peek().copied() {
13404 if should_stay_with_preceding_ideograph(grapheme) {
13405 offset += grapheme.len();
13406 graphemes += 1;
13407 }
13408 }
13409 } else {
13410 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13411 let mut next_word_bound = words.peek().copied();
13412 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13413 next_word_bound = words.next();
13414 }
13415 while let Some(grapheme) = iter.peek().copied() {
13416 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13417 break;
13418 };
13419 if is_grapheme_whitespace(grapheme) != is_whitespace {
13420 break;
13421 };
13422 offset += grapheme.len();
13423 graphemes += 1;
13424 iter.next();
13425 }
13426 }
13427 let token = &self.input[..offset];
13428 self.input = &self.input[offset..];
13429 if is_whitespace {
13430 Some(WordBreakToken {
13431 token: " ",
13432 grapheme_len: 1,
13433 is_whitespace: true,
13434 })
13435 } else {
13436 Some(WordBreakToken {
13437 token,
13438 grapheme_len: graphemes,
13439 is_whitespace: false,
13440 })
13441 }
13442 } else {
13443 None
13444 }
13445 }
13446}
13447
13448#[test]
13449fn test_word_breaking_tokenizer() {
13450 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13451 ("", &[]),
13452 (" ", &[(" ", 1, true)]),
13453 ("Ʒ", &[("Ʒ", 1, false)]),
13454 ("Ǽ", &[("Ǽ", 1, false)]),
13455 ("⋑", &[("⋑", 1, false)]),
13456 ("⋑⋑", &[("⋑⋑", 2, false)]),
13457 (
13458 "原理，进而",
13459 &[
13460 ("原", 1, false),
13461 ("理，", 2, false),
13462 ("进", 1, false),
13463 ("而", 1, false),
13464 ],
13465 ),
13466 (
13467 "hello world",
13468 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13469 ),
13470 (
13471 "hello, world",
13472 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13473 ),
13474 (
13475 " hello world",
13476 &[
13477 (" ", 1, true),
13478 ("hello", 5, false),
13479 (" ", 1, true),
13480 ("world", 5, false),
13481 ],
13482 ),
13483 (
13484 "这是什么 \n 钢笔",
13485 &[
13486 ("这", 1, false),
13487 ("是", 1, false),
13488 ("什", 1, false),
13489 ("么", 1, false),
13490 (" ", 1, true),
13491 ("钢", 1, false),
13492 ("笔", 1, false),
13493 ],
13494 ),
13495 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13496 ];
13497
13498 for (input, result) in tests {
13499 assert_eq!(
13500 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13501 result
13502 .iter()
13503 .copied()
13504 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13505 token,
13506 grapheme_len,
13507 is_whitespace,
13508 })
13509 .collect::<Vec<_>>()
13510 );
13511 }
13512}
13513
13514fn wrap_with_prefix(
13515 line_prefix: String,
13516 unwrapped_text: String,
13517 wrap_column: usize,
13518 tab_size: NonZeroU32,
13519) -> String {
13520 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13521 let mut wrapped_text = String::new();
13522 let mut current_line = line_prefix.clone();
13523
13524 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13525 let mut current_line_len = line_prefix_len;
13526 for WordBreakToken {
13527 token,
13528 grapheme_len,
13529 is_whitespace,
13530 } in tokenizer
13531 {
13532 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13533 wrapped_text.push_str(current_line.trim_end());
13534 wrapped_text.push('\n');
13535 current_line.truncate(line_prefix.len());
13536 current_line_len = line_prefix_len;
13537 if !is_whitespace {
13538 current_line.push_str(token);
13539 current_line_len += grapheme_len;
13540 }
13541 } else if !is_whitespace {
13542 current_line.push_str(token);
13543 current_line_len += grapheme_len;
13544 } else if current_line_len != line_prefix_len {
13545 current_line.push(' ');
13546 current_line_len += 1;
13547 }
13548 }
13549
13550 if !current_line.is_empty() {
13551 wrapped_text.push_str(¤t_line);
13552 }
13553 wrapped_text
13554}
13555
13556#[test]
13557fn test_wrap_with_prefix() {
13558 assert_eq!(
13559 wrap_with_prefix(
13560 "# ".to_string(),
13561 "abcdefg".to_string(),
13562 4,
13563 NonZeroU32::new(4).unwrap()
13564 ),
13565 "# abcdefg"
13566 );
13567 assert_eq!(
13568 wrap_with_prefix(
13569 "".to_string(),
13570 "\thello world".to_string(),
13571 8,
13572 NonZeroU32::new(4).unwrap()
13573 ),
13574 "hello\nworld"
13575 );
13576 assert_eq!(
13577 wrap_with_prefix(
13578 "// ".to_string(),
13579 "xx \nyy zz aa bb cc".to_string(),
13580 12,
13581 NonZeroU32::new(4).unwrap()
13582 ),
13583 "// xx yy zz\n// aa bb cc"
13584 );
13585 assert_eq!(
13586 wrap_with_prefix(
13587 String::new(),
13588 "这是什么 \n 钢笔".to_string(),
13589 3,
13590 NonZeroU32::new(4).unwrap()
13591 ),
13592 "这是什\n么 钢\n笔"
13593 );
13594}
13595
13596fn hunks_for_selections(
13597 multi_buffer_snapshot: &MultiBufferSnapshot,
13598 selections: &[Selection<Anchor>],
13599) -> Vec<MultiBufferDiffHunk> {
13600 let buffer_rows_for_selections = selections.iter().map(|selection| {
13601 let head = selection.head();
13602 let tail = selection.tail();
13603 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13604 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13605 if start > end {
13606 end..start
13607 } else {
13608 start..end
13609 }
13610 });
13611
13612 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13613}
13614
13615pub fn hunks_for_rows(
13616 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13617 multi_buffer_snapshot: &MultiBufferSnapshot,
13618) -> Vec<MultiBufferDiffHunk> {
13619 let mut hunks = Vec::new();
13620 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13621 HashMap::default();
13622 for selected_multi_buffer_rows in rows {
13623 let query_rows =
13624 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13625 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13626 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13627 // when the caret is just above or just below the deleted hunk.
13628 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13629 let related_to_selection = if allow_adjacent {
13630 hunk.row_range.overlaps(&query_rows)
13631 || hunk.row_range.start == query_rows.end
13632 || hunk.row_range.end == query_rows.start
13633 } else {
13634 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13635 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13636 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13637 || selected_multi_buffer_rows.end == hunk.row_range.start
13638 };
13639 if related_to_selection {
13640 if !processed_buffer_rows
13641 .entry(hunk.buffer_id)
13642 .or_default()
13643 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13644 {
13645 continue;
13646 }
13647 hunks.push(hunk);
13648 }
13649 }
13650 }
13651
13652 hunks
13653}
13654
13655pub trait CollaborationHub {
13656 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13657 fn user_participant_indices<'a>(
13658 &self,
13659 cx: &'a AppContext,
13660 ) -> &'a HashMap<u64, ParticipantIndex>;
13661 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13662}
13663
13664impl CollaborationHub for Model<Project> {
13665 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13666 self.read(cx).collaborators()
13667 }
13668
13669 fn user_participant_indices<'a>(
13670 &self,
13671 cx: &'a AppContext,
13672 ) -> &'a HashMap<u64, ParticipantIndex> {
13673 self.read(cx).user_store().read(cx).participant_indices()
13674 }
13675
13676 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13677 let this = self.read(cx);
13678 let user_ids = this.collaborators().values().map(|c| c.user_id);
13679 this.user_store().read_with(cx, |user_store, cx| {
13680 user_store.participant_names(user_ids, cx)
13681 })
13682 }
13683}
13684
13685pub trait SemanticsProvider {
13686 fn hover(
13687 &self,
13688 buffer: &Model<Buffer>,
13689 position: text::Anchor,
13690 cx: &mut AppContext,
13691 ) -> Option<Task<Vec<project::Hover>>>;
13692
13693 fn inlay_hints(
13694 &self,
13695 buffer_handle: Model<Buffer>,
13696 range: Range<text::Anchor>,
13697 cx: &mut AppContext,
13698 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13699
13700 fn resolve_inlay_hint(
13701 &self,
13702 hint: InlayHint,
13703 buffer_handle: Model<Buffer>,
13704 server_id: LanguageServerId,
13705 cx: &mut AppContext,
13706 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13707
13708 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13709
13710 fn document_highlights(
13711 &self,
13712 buffer: &Model<Buffer>,
13713 position: text::Anchor,
13714 cx: &mut AppContext,
13715 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13716
13717 fn definitions(
13718 &self,
13719 buffer: &Model<Buffer>,
13720 position: text::Anchor,
13721 kind: GotoDefinitionKind,
13722 cx: &mut AppContext,
13723 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13724
13725 fn range_for_rename(
13726 &self,
13727 buffer: &Model<Buffer>,
13728 position: text::Anchor,
13729 cx: &mut AppContext,
13730 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13731
13732 fn perform_rename(
13733 &self,
13734 buffer: &Model<Buffer>,
13735 position: text::Anchor,
13736 new_name: String,
13737 cx: &mut AppContext,
13738 ) -> Option<Task<Result<ProjectTransaction>>>;
13739}
13740
13741pub trait CompletionProvider {
13742 fn completions(
13743 &self,
13744 buffer: &Model<Buffer>,
13745 buffer_position: text::Anchor,
13746 trigger: CompletionContext,
13747 cx: &mut ViewContext<Editor>,
13748 ) -> Task<Result<Vec<Completion>>>;
13749
13750 fn resolve_completions(
13751 &self,
13752 buffer: Model<Buffer>,
13753 completion_indices: Vec<usize>,
13754 completions: Arc<RwLock<Box<[Completion]>>>,
13755 cx: &mut ViewContext<Editor>,
13756 ) -> Task<Result<bool>>;
13757
13758 fn apply_additional_edits_for_completion(
13759 &self,
13760 buffer: Model<Buffer>,
13761 completion: Completion,
13762 push_to_history: bool,
13763 cx: &mut ViewContext<Editor>,
13764 ) -> Task<Result<Option<language::Transaction>>>;
13765
13766 fn is_completion_trigger(
13767 &self,
13768 buffer: &Model<Buffer>,
13769 position: language::Anchor,
13770 text: &str,
13771 trigger_in_words: bool,
13772 cx: &mut ViewContext<Editor>,
13773 ) -> bool;
13774
13775 fn sort_completions(&self) -> bool {
13776 true
13777 }
13778}
13779
13780pub trait CodeActionProvider {
13781 fn code_actions(
13782 &self,
13783 buffer: &Model<Buffer>,
13784 range: Range<text::Anchor>,
13785 cx: &mut WindowContext,
13786 ) -> Task<Result<Vec<CodeAction>>>;
13787
13788 fn apply_code_action(
13789 &self,
13790 buffer_handle: Model<Buffer>,
13791 action: CodeAction,
13792 excerpt_id: ExcerptId,
13793 push_to_history: bool,
13794 cx: &mut WindowContext,
13795 ) -> Task<Result<ProjectTransaction>>;
13796}
13797
13798impl CodeActionProvider for Model<Project> {
13799 fn code_actions(
13800 &self,
13801 buffer: &Model<Buffer>,
13802 range: Range<text::Anchor>,
13803 cx: &mut WindowContext,
13804 ) -> Task<Result<Vec<CodeAction>>> {
13805 self.update(cx, |project, cx| {
13806 project.code_actions(buffer, range, None, cx)
13807 })
13808 }
13809
13810 fn apply_code_action(
13811 &self,
13812 buffer_handle: Model<Buffer>,
13813 action: CodeAction,
13814 _excerpt_id: ExcerptId,
13815 push_to_history: bool,
13816 cx: &mut WindowContext,
13817 ) -> Task<Result<ProjectTransaction>> {
13818 self.update(cx, |project, cx| {
13819 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13820 })
13821 }
13822}
13823
13824fn snippet_completions(
13825 project: &Project,
13826 buffer: &Model<Buffer>,
13827 buffer_position: text::Anchor,
13828 cx: &mut AppContext,
13829) -> Vec<Completion> {
13830 let language = buffer.read(cx).language_at(buffer_position);
13831 let language_name = language.as_ref().map(|language| language.lsp_id());
13832 let snippet_store = project.snippets().read(cx);
13833 let snippets = snippet_store.snippets_for(language_name, cx);
13834
13835 if snippets.is_empty() {
13836 return vec![];
13837 }
13838 let snapshot = buffer.read(cx).text_snapshot();
13839 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13840
13841 let scope = language.map(|language| language.default_scope());
13842 let classifier = CharClassifier::new(scope).for_completion(true);
13843 let mut last_word = chars
13844 .take_while(|c| classifier.is_word(*c))
13845 .collect::<String>();
13846 last_word = last_word.chars().rev().collect();
13847 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13848 let to_lsp = |point: &text::Anchor| {
13849 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13850 point_to_lsp(end)
13851 };
13852 let lsp_end = to_lsp(&buffer_position);
13853 snippets
13854 .into_iter()
13855 .filter_map(|snippet| {
13856 let matching_prefix = snippet
13857 .prefix
13858 .iter()
13859 .find(|prefix| prefix.starts_with(&last_word))?;
13860 let start = as_offset - last_word.len();
13861 let start = snapshot.anchor_before(start);
13862 let range = start..buffer_position;
13863 let lsp_start = to_lsp(&start);
13864 let lsp_range = lsp::Range {
13865 start: lsp_start,
13866 end: lsp_end,
13867 };
13868 Some(Completion {
13869 old_range: range,
13870 new_text: snippet.body.clone(),
13871 label: CodeLabel {
13872 text: matching_prefix.clone(),
13873 runs: vec![],
13874 filter_range: 0..matching_prefix.len(),
13875 },
13876 server_id: LanguageServerId(usize::MAX),
13877 documentation: snippet.description.clone().map(Documentation::SingleLine),
13878 lsp_completion: lsp::CompletionItem {
13879 label: snippet.prefix.first().unwrap().clone(),
13880 kind: Some(CompletionItemKind::SNIPPET),
13881 label_details: snippet.description.as_ref().map(|description| {
13882 lsp::CompletionItemLabelDetails {
13883 detail: Some(description.clone()),
13884 description: None,
13885 }
13886 }),
13887 insert_text_format: Some(InsertTextFormat::SNIPPET),
13888 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13889 lsp::InsertReplaceEdit {
13890 new_text: snippet.body.clone(),
13891 insert: lsp_range,
13892 replace: lsp_range,
13893 },
13894 )),
13895 filter_text: Some(snippet.body.clone()),
13896 sort_text: Some(char::MAX.to_string()),
13897 ..Default::default()
13898 },
13899 confirm: None,
13900 })
13901 })
13902 .collect()
13903}
13904
13905impl CompletionProvider for Model<Project> {
13906 fn completions(
13907 &self,
13908 buffer: &Model<Buffer>,
13909 buffer_position: text::Anchor,
13910 options: CompletionContext,
13911 cx: &mut ViewContext<Editor>,
13912 ) -> Task<Result<Vec<Completion>>> {
13913 self.update(cx, |project, cx| {
13914 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13915 let project_completions = project.completions(buffer, buffer_position, options, cx);
13916 cx.background_executor().spawn(async move {
13917 let mut completions = project_completions.await?;
13918 //let snippets = snippets.into_iter().;
13919 completions.extend(snippets);
13920 Ok(completions)
13921 })
13922 })
13923 }
13924
13925 fn resolve_completions(
13926 &self,
13927 buffer: Model<Buffer>,
13928 completion_indices: Vec<usize>,
13929 completions: Arc<RwLock<Box<[Completion]>>>,
13930 cx: &mut ViewContext<Editor>,
13931 ) -> Task<Result<bool>> {
13932 self.update(cx, |project, cx| {
13933 project.resolve_completions(buffer, completion_indices, completions, cx)
13934 })
13935 }
13936
13937 fn apply_additional_edits_for_completion(
13938 &self,
13939 buffer: Model<Buffer>,
13940 completion: Completion,
13941 push_to_history: bool,
13942 cx: &mut ViewContext<Editor>,
13943 ) -> Task<Result<Option<language::Transaction>>> {
13944 self.update(cx, |project, cx| {
13945 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13946 })
13947 }
13948
13949 fn is_completion_trigger(
13950 &self,
13951 buffer: &Model<Buffer>,
13952 position: language::Anchor,
13953 text: &str,
13954 trigger_in_words: bool,
13955 cx: &mut ViewContext<Editor>,
13956 ) -> bool {
13957 if !EditorSettings::get_global(cx).show_completions_on_input {
13958 return false;
13959 }
13960
13961 let mut chars = text.chars();
13962 let char = if let Some(char) = chars.next() {
13963 char
13964 } else {
13965 return false;
13966 };
13967 if chars.next().is_some() {
13968 return false;
13969 }
13970
13971 let buffer = buffer.read(cx);
13972 let classifier = buffer
13973 .snapshot()
13974 .char_classifier_at(position)
13975 .for_completion(true);
13976 if trigger_in_words && classifier.is_word(char) {
13977 return true;
13978 }
13979
13980 buffer.completion_triggers().contains(text)
13981 }
13982}
13983
13984impl SemanticsProvider for Model<Project> {
13985 fn hover(
13986 &self,
13987 buffer: &Model<Buffer>,
13988 position: text::Anchor,
13989 cx: &mut AppContext,
13990 ) -> Option<Task<Vec<project::Hover>>> {
13991 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13992 }
13993
13994 fn document_highlights(
13995 &self,
13996 buffer: &Model<Buffer>,
13997 position: text::Anchor,
13998 cx: &mut AppContext,
13999 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14000 Some(self.update(cx, |project, cx| {
14001 project.document_highlights(buffer, position, cx)
14002 }))
14003 }
14004
14005 fn definitions(
14006 &self,
14007 buffer: &Model<Buffer>,
14008 position: text::Anchor,
14009 kind: GotoDefinitionKind,
14010 cx: &mut AppContext,
14011 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14012 Some(self.update(cx, |project, cx| match kind {
14013 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14014 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14015 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14016 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14017 }))
14018 }
14019
14020 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14021 // TODO: make this work for remote projects
14022 self.read(cx)
14023 .language_servers_for_buffer(buffer.read(cx), cx)
14024 .any(
14025 |(_, server)| match server.capabilities().inlay_hint_provider {
14026 Some(lsp::OneOf::Left(enabled)) => enabled,
14027 Some(lsp::OneOf::Right(_)) => true,
14028 None => false,
14029 },
14030 )
14031 }
14032
14033 fn inlay_hints(
14034 &self,
14035 buffer_handle: Model<Buffer>,
14036 range: Range<text::Anchor>,
14037 cx: &mut AppContext,
14038 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14039 Some(self.update(cx, |project, cx| {
14040 project.inlay_hints(buffer_handle, range, cx)
14041 }))
14042 }
14043
14044 fn resolve_inlay_hint(
14045 &self,
14046 hint: InlayHint,
14047 buffer_handle: Model<Buffer>,
14048 server_id: LanguageServerId,
14049 cx: &mut AppContext,
14050 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14051 Some(self.update(cx, |project, cx| {
14052 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14053 }))
14054 }
14055
14056 fn range_for_rename(
14057 &self,
14058 buffer: &Model<Buffer>,
14059 position: text::Anchor,
14060 cx: &mut AppContext,
14061 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14062 Some(self.update(cx, |project, cx| {
14063 project.prepare_rename(buffer.clone(), position, cx)
14064 }))
14065 }
14066
14067 fn perform_rename(
14068 &self,
14069 buffer: &Model<Buffer>,
14070 position: text::Anchor,
14071 new_name: String,
14072 cx: &mut AppContext,
14073 ) -> Option<Task<Result<ProjectTransaction>>> {
14074 Some(self.update(cx, |project, cx| {
14075 project.perform_rename(buffer.clone(), position, new_name, cx)
14076 }))
14077 }
14078}
14079
14080fn inlay_hint_settings(
14081 location: Anchor,
14082 snapshot: &MultiBufferSnapshot,
14083 cx: &mut ViewContext<'_, Editor>,
14084) -> InlayHintSettings {
14085 let file = snapshot.file_at(location);
14086 let language = snapshot.language_at(location).map(|l| l.name());
14087 language_settings(language, file, cx).inlay_hints
14088}
14089
14090fn consume_contiguous_rows(
14091 contiguous_row_selections: &mut Vec<Selection<Point>>,
14092 selection: &Selection<Point>,
14093 display_map: &DisplaySnapshot,
14094 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14095) -> (MultiBufferRow, MultiBufferRow) {
14096 contiguous_row_selections.push(selection.clone());
14097 let start_row = MultiBufferRow(selection.start.row);
14098 let mut end_row = ending_row(selection, display_map);
14099
14100 while let Some(next_selection) = selections.peek() {
14101 if next_selection.start.row <= end_row.0 {
14102 end_row = ending_row(next_selection, display_map);
14103 contiguous_row_selections.push(selections.next().unwrap().clone());
14104 } else {
14105 break;
14106 }
14107 }
14108 (start_row, end_row)
14109}
14110
14111fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14112 if next_selection.end.column > 0 || next_selection.is_empty() {
14113 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14114 } else {
14115 MultiBufferRow(next_selection.end.row)
14116 }
14117}
14118
14119impl EditorSnapshot {
14120 pub fn remote_selections_in_range<'a>(
14121 &'a self,
14122 range: &'a Range<Anchor>,
14123 collaboration_hub: &dyn CollaborationHub,
14124 cx: &'a AppContext,
14125 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14126 let participant_names = collaboration_hub.user_names(cx);
14127 let participant_indices = collaboration_hub.user_participant_indices(cx);
14128 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14129 let collaborators_by_replica_id = collaborators_by_peer_id
14130 .iter()
14131 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14132 .collect::<HashMap<_, _>>();
14133 self.buffer_snapshot
14134 .selections_in_range(range, false)
14135 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14136 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14137 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14138 let user_name = participant_names.get(&collaborator.user_id).cloned();
14139 Some(RemoteSelection {
14140 replica_id,
14141 selection,
14142 cursor_shape,
14143 line_mode,
14144 participant_index,
14145 peer_id: collaborator.peer_id,
14146 user_name,
14147 })
14148 })
14149 }
14150
14151 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14152 self.display_snapshot.buffer_snapshot.language_at(position)
14153 }
14154
14155 pub fn is_focused(&self) -> bool {
14156 self.is_focused
14157 }
14158
14159 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14160 self.placeholder_text.as_ref()
14161 }
14162
14163 pub fn scroll_position(&self) -> gpui::Point<f32> {
14164 self.scroll_anchor.scroll_position(&self.display_snapshot)
14165 }
14166
14167 fn gutter_dimensions(
14168 &self,
14169 font_id: FontId,
14170 font_size: Pixels,
14171 em_width: Pixels,
14172 em_advance: Pixels,
14173 max_line_number_width: Pixels,
14174 cx: &AppContext,
14175 ) -> GutterDimensions {
14176 if !self.show_gutter {
14177 return GutterDimensions::default();
14178 }
14179 let descent = cx.text_system().descent(font_id, font_size);
14180
14181 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14182 matches!(
14183 ProjectSettings::get_global(cx).git.git_gutter,
14184 Some(GitGutterSetting::TrackedFiles)
14185 )
14186 });
14187 let gutter_settings = EditorSettings::get_global(cx).gutter;
14188 let show_line_numbers = self
14189 .show_line_numbers
14190 .unwrap_or(gutter_settings.line_numbers);
14191 let line_gutter_width = if show_line_numbers {
14192 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14193 let min_width_for_number_on_gutter = em_advance * 4.0;
14194 max_line_number_width.max(min_width_for_number_on_gutter)
14195 } else {
14196 0.0.into()
14197 };
14198
14199 let show_code_actions = self
14200 .show_code_actions
14201 .unwrap_or(gutter_settings.code_actions);
14202
14203 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14204
14205 let git_blame_entries_width =
14206 self.git_blame_gutter_max_author_length
14207 .map(|max_author_length| {
14208 // Length of the author name, but also space for the commit hash,
14209 // the spacing and the timestamp.
14210 let max_char_count = max_author_length
14211 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14212 + 7 // length of commit sha
14213 + 14 // length of max relative timestamp ("60 minutes ago")
14214 + 4; // gaps and margins
14215
14216 em_advance * max_char_count
14217 });
14218
14219 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14220 left_padding += if show_code_actions || show_runnables {
14221 em_width * 3.0
14222 } else if show_git_gutter && show_line_numbers {
14223 em_width * 2.0
14224 } else if show_git_gutter || show_line_numbers {
14225 em_width
14226 } else {
14227 px(0.)
14228 };
14229
14230 let right_padding = if gutter_settings.folds && show_line_numbers {
14231 em_width * 4.0
14232 } else if gutter_settings.folds {
14233 em_width * 3.0
14234 } else if show_line_numbers {
14235 em_width
14236 } else {
14237 px(0.)
14238 };
14239
14240 GutterDimensions {
14241 left_padding,
14242 right_padding,
14243 width: line_gutter_width + left_padding + right_padding,
14244 margin: -descent,
14245 git_blame_entries_width,
14246 }
14247 }
14248
14249 pub fn render_crease_toggle(
14250 &self,
14251 buffer_row: MultiBufferRow,
14252 row_contains_cursor: bool,
14253 editor: View<Editor>,
14254 cx: &mut WindowContext,
14255 ) -> Option<AnyElement> {
14256 let folded = self.is_line_folded(buffer_row);
14257 let mut is_foldable = false;
14258
14259 if let Some(crease) = self
14260 .crease_snapshot
14261 .query_row(buffer_row, &self.buffer_snapshot)
14262 {
14263 is_foldable = true;
14264 match crease {
14265 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14266 if let Some(render_toggle) = render_toggle {
14267 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14268 if folded {
14269 editor.update(cx, |editor, cx| {
14270 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14271 });
14272 } else {
14273 editor.update(cx, |editor, cx| {
14274 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14275 });
14276 }
14277 });
14278 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14279 }
14280 }
14281 }
14282 }
14283
14284 is_foldable |= self.starts_indent(buffer_row);
14285
14286 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14287 Some(
14288 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14289 .selected(folded)
14290 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14291 if folded {
14292 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14293 } else {
14294 this.fold_at(&FoldAt { buffer_row }, cx);
14295 }
14296 }))
14297 .into_any_element(),
14298 )
14299 } else {
14300 None
14301 }
14302 }
14303
14304 pub fn render_crease_trailer(
14305 &self,
14306 buffer_row: MultiBufferRow,
14307 cx: &mut WindowContext,
14308 ) -> Option<AnyElement> {
14309 let folded = self.is_line_folded(buffer_row);
14310 if let Crease::Inline { render_trailer, .. } = self
14311 .crease_snapshot
14312 .query_row(buffer_row, &self.buffer_snapshot)?
14313 {
14314 let render_trailer = render_trailer.as_ref()?;
14315 Some(render_trailer(buffer_row, folded, cx))
14316 } else {
14317 None
14318 }
14319 }
14320}
14321
14322impl Deref for EditorSnapshot {
14323 type Target = DisplaySnapshot;
14324
14325 fn deref(&self) -> &Self::Target {
14326 &self.display_snapshot
14327 }
14328}
14329
14330#[derive(Clone, Debug, PartialEq, Eq)]
14331pub enum EditorEvent {
14332 InputIgnored {
14333 text: Arc<str>,
14334 },
14335 InputHandled {
14336 utf16_range_to_replace: Option<Range<isize>>,
14337 text: Arc<str>,
14338 },
14339 ExcerptsAdded {
14340 buffer: Model<Buffer>,
14341 predecessor: ExcerptId,
14342 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14343 },
14344 ExcerptsRemoved {
14345 ids: Vec<ExcerptId>,
14346 },
14347 ExcerptsEdited {
14348 ids: Vec<ExcerptId>,
14349 },
14350 ExcerptsExpanded {
14351 ids: Vec<ExcerptId>,
14352 },
14353 BufferEdited,
14354 Edited {
14355 transaction_id: clock::Lamport,
14356 },
14357 Reparsed(BufferId),
14358 Focused,
14359 FocusedIn,
14360 Blurred,
14361 DirtyChanged,
14362 Saved,
14363 TitleChanged,
14364 DiffBaseChanged,
14365 SelectionsChanged {
14366 local: bool,
14367 },
14368 ScrollPositionChanged {
14369 local: bool,
14370 autoscroll: bool,
14371 },
14372 Closed,
14373 TransactionUndone {
14374 transaction_id: clock::Lamport,
14375 },
14376 TransactionBegun {
14377 transaction_id: clock::Lamport,
14378 },
14379 Reloaded,
14380 CursorShapeChanged,
14381}
14382
14383impl EventEmitter<EditorEvent> for Editor {}
14384
14385impl FocusableView for Editor {
14386 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14387 self.focus_handle.clone()
14388 }
14389}
14390
14391impl Render for Editor {
14392 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14393 let settings = ThemeSettings::get_global(cx);
14394
14395 let mut text_style = match self.mode {
14396 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14397 color: cx.theme().colors().editor_foreground,
14398 font_family: settings.ui_font.family.clone(),
14399 font_features: settings.ui_font.features.clone(),
14400 font_fallbacks: settings.ui_font.fallbacks.clone(),
14401 font_size: rems(0.875).into(),
14402 font_weight: settings.ui_font.weight,
14403 line_height: relative(settings.buffer_line_height.value()),
14404 ..Default::default()
14405 },
14406 EditorMode::Full => TextStyle {
14407 color: cx.theme().colors().editor_foreground,
14408 font_family: settings.buffer_font.family.clone(),
14409 font_features: settings.buffer_font.features.clone(),
14410 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14411 font_size: settings.buffer_font_size(cx).into(),
14412 font_weight: settings.buffer_font.weight,
14413 line_height: relative(settings.buffer_line_height.value()),
14414 ..Default::default()
14415 },
14416 };
14417 if let Some(text_style_refinement) = &self.text_style_refinement {
14418 text_style.refine(text_style_refinement)
14419 }
14420
14421 let background = match self.mode {
14422 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14423 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14424 EditorMode::Full => cx.theme().colors().editor_background,
14425 };
14426
14427 EditorElement::new(
14428 cx.view(),
14429 EditorStyle {
14430 background,
14431 local_player: cx.theme().players().local(),
14432 text: text_style,
14433 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14434 syntax: cx.theme().syntax().clone(),
14435 status: cx.theme().status().clone(),
14436 inlay_hints_style: make_inlay_hints_style(cx),
14437 suggestions_style: HighlightStyle {
14438 color: Some(cx.theme().status().predictive),
14439 ..HighlightStyle::default()
14440 },
14441 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14442 },
14443 )
14444 }
14445}
14446
14447impl ViewInputHandler for Editor {
14448 fn text_for_range(
14449 &mut self,
14450 range_utf16: Range<usize>,
14451 adjusted_range: &mut Option<Range<usize>>,
14452 cx: &mut ViewContext<Self>,
14453 ) -> Option<String> {
14454 let snapshot = self.buffer.read(cx).read(cx);
14455 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14456 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14457 if (start.0..end.0) != range_utf16 {
14458 adjusted_range.replace(start.0..end.0);
14459 }
14460 Some(snapshot.text_for_range(start..end).collect())
14461 }
14462
14463 fn selected_text_range(
14464 &mut self,
14465 ignore_disabled_input: bool,
14466 cx: &mut ViewContext<Self>,
14467 ) -> Option<UTF16Selection> {
14468 // Prevent the IME menu from appearing when holding down an alphabetic key
14469 // while input is disabled.
14470 if !ignore_disabled_input && !self.input_enabled {
14471 return None;
14472 }
14473
14474 let selection = self.selections.newest::<OffsetUtf16>(cx);
14475 let range = selection.range();
14476
14477 Some(UTF16Selection {
14478 range: range.start.0..range.end.0,
14479 reversed: selection.reversed,
14480 })
14481 }
14482
14483 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14484 let snapshot = self.buffer.read(cx).read(cx);
14485 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14486 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14487 }
14488
14489 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14490 self.clear_highlights::<InputComposition>(cx);
14491 self.ime_transaction.take();
14492 }
14493
14494 fn replace_text_in_range(
14495 &mut self,
14496 range_utf16: Option<Range<usize>>,
14497 text: &str,
14498 cx: &mut ViewContext<Self>,
14499 ) {
14500 if !self.input_enabled {
14501 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14502 return;
14503 }
14504
14505 self.transact(cx, |this, cx| {
14506 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14507 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14508 Some(this.selection_replacement_ranges(range_utf16, cx))
14509 } else {
14510 this.marked_text_ranges(cx)
14511 };
14512
14513 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14514 let newest_selection_id = this.selections.newest_anchor().id;
14515 this.selections
14516 .all::<OffsetUtf16>(cx)
14517 .iter()
14518 .zip(ranges_to_replace.iter())
14519 .find_map(|(selection, range)| {
14520 if selection.id == newest_selection_id {
14521 Some(
14522 (range.start.0 as isize - selection.head().0 as isize)
14523 ..(range.end.0 as isize - selection.head().0 as isize),
14524 )
14525 } else {
14526 None
14527 }
14528 })
14529 });
14530
14531 cx.emit(EditorEvent::InputHandled {
14532 utf16_range_to_replace: range_to_replace,
14533 text: text.into(),
14534 });
14535
14536 if let Some(new_selected_ranges) = new_selected_ranges {
14537 this.change_selections(None, cx, |selections| {
14538 selections.select_ranges(new_selected_ranges)
14539 });
14540 this.backspace(&Default::default(), cx);
14541 }
14542
14543 this.handle_input(text, cx);
14544 });
14545
14546 if let Some(transaction) = self.ime_transaction {
14547 self.buffer.update(cx, |buffer, cx| {
14548 buffer.group_until_transaction(transaction, cx);
14549 });
14550 }
14551
14552 self.unmark_text(cx);
14553 }
14554
14555 fn replace_and_mark_text_in_range(
14556 &mut self,
14557 range_utf16: Option<Range<usize>>,
14558 text: &str,
14559 new_selected_range_utf16: Option<Range<usize>>,
14560 cx: &mut ViewContext<Self>,
14561 ) {
14562 if !self.input_enabled {
14563 return;
14564 }
14565
14566 let transaction = self.transact(cx, |this, cx| {
14567 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14568 let snapshot = this.buffer.read(cx).read(cx);
14569 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14570 for marked_range in &mut marked_ranges {
14571 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14572 marked_range.start.0 += relative_range_utf16.start;
14573 marked_range.start =
14574 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14575 marked_range.end =
14576 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14577 }
14578 }
14579 Some(marked_ranges)
14580 } else if let Some(range_utf16) = range_utf16 {
14581 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14582 Some(this.selection_replacement_ranges(range_utf16, cx))
14583 } else {
14584 None
14585 };
14586
14587 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14588 let newest_selection_id = this.selections.newest_anchor().id;
14589 this.selections
14590 .all::<OffsetUtf16>(cx)
14591 .iter()
14592 .zip(ranges_to_replace.iter())
14593 .find_map(|(selection, range)| {
14594 if selection.id == newest_selection_id {
14595 Some(
14596 (range.start.0 as isize - selection.head().0 as isize)
14597 ..(range.end.0 as isize - selection.head().0 as isize),
14598 )
14599 } else {
14600 None
14601 }
14602 })
14603 });
14604
14605 cx.emit(EditorEvent::InputHandled {
14606 utf16_range_to_replace: range_to_replace,
14607 text: text.into(),
14608 });
14609
14610 if let Some(ranges) = ranges_to_replace {
14611 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14612 }
14613
14614 let marked_ranges = {
14615 let snapshot = this.buffer.read(cx).read(cx);
14616 this.selections
14617 .disjoint_anchors()
14618 .iter()
14619 .map(|selection| {
14620 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14621 })
14622 .collect::<Vec<_>>()
14623 };
14624
14625 if text.is_empty() {
14626 this.unmark_text(cx);
14627 } else {
14628 this.highlight_text::<InputComposition>(
14629 marked_ranges.clone(),
14630 HighlightStyle {
14631 underline: Some(UnderlineStyle {
14632 thickness: px(1.),
14633 color: None,
14634 wavy: false,
14635 }),
14636 ..Default::default()
14637 },
14638 cx,
14639 );
14640 }
14641
14642 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14643 let use_autoclose = this.use_autoclose;
14644 let use_auto_surround = this.use_auto_surround;
14645 this.set_use_autoclose(false);
14646 this.set_use_auto_surround(false);
14647 this.handle_input(text, cx);
14648 this.set_use_autoclose(use_autoclose);
14649 this.set_use_auto_surround(use_auto_surround);
14650
14651 if let Some(new_selected_range) = new_selected_range_utf16 {
14652 let snapshot = this.buffer.read(cx).read(cx);
14653 let new_selected_ranges = marked_ranges
14654 .into_iter()
14655 .map(|marked_range| {
14656 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14657 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14658 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14659 snapshot.clip_offset_utf16(new_start, Bias::Left)
14660 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14661 })
14662 .collect::<Vec<_>>();
14663
14664 drop(snapshot);
14665 this.change_selections(None, cx, |selections| {
14666 selections.select_ranges(new_selected_ranges)
14667 });
14668 }
14669 });
14670
14671 self.ime_transaction = self.ime_transaction.or(transaction);
14672 if let Some(transaction) = self.ime_transaction {
14673 self.buffer.update(cx, |buffer, cx| {
14674 buffer.group_until_transaction(transaction, cx);
14675 });
14676 }
14677
14678 if self.text_highlights::<InputComposition>(cx).is_none() {
14679 self.ime_transaction.take();
14680 }
14681 }
14682
14683 fn bounds_for_range(
14684 &mut self,
14685 range_utf16: Range<usize>,
14686 element_bounds: gpui::Bounds<Pixels>,
14687 cx: &mut ViewContext<Self>,
14688 ) -> Option<gpui::Bounds<Pixels>> {
14689 let text_layout_details = self.text_layout_details(cx);
14690 let style = &text_layout_details.editor_style;
14691 let font_id = cx.text_system().resolve_font(&style.text.font());
14692 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14693 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14694
14695 let em_width = cx
14696 .text_system()
14697 .typographic_bounds(font_id, font_size, 'm')
14698 .unwrap()
14699 .size
14700 .width;
14701
14702 let snapshot = self.snapshot(cx);
14703 let scroll_position = snapshot.scroll_position();
14704 let scroll_left = scroll_position.x * em_width;
14705
14706 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14707 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14708 + self.gutter_dimensions.width
14709 + self.gutter_dimensions.margin;
14710 let y = line_height * (start.row().as_f32() - scroll_position.y);
14711
14712 Some(Bounds {
14713 origin: element_bounds.origin + point(x, y),
14714 size: size(em_width, line_height),
14715 })
14716 }
14717}
14718
14719trait SelectionExt {
14720 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14721 fn spanned_rows(
14722 &self,
14723 include_end_if_at_line_start: bool,
14724 map: &DisplaySnapshot,
14725 ) -> Range<MultiBufferRow>;
14726}
14727
14728impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14729 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14730 let start = self
14731 .start
14732 .to_point(&map.buffer_snapshot)
14733 .to_display_point(map);
14734 let end = self
14735 .end
14736 .to_point(&map.buffer_snapshot)
14737 .to_display_point(map);
14738 if self.reversed {
14739 end..start
14740 } else {
14741 start..end
14742 }
14743 }
14744
14745 fn spanned_rows(
14746 &self,
14747 include_end_if_at_line_start: bool,
14748 map: &DisplaySnapshot,
14749 ) -> Range<MultiBufferRow> {
14750 let start = self.start.to_point(&map.buffer_snapshot);
14751 let mut end = self.end.to_point(&map.buffer_snapshot);
14752 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14753 end.row -= 1;
14754 }
14755
14756 let buffer_start = map.prev_line_boundary(start).0;
14757 let buffer_end = map.next_line_boundary(end).0;
14758 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14759 }
14760}
14761
14762impl<T: InvalidationRegion> InvalidationStack<T> {
14763 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14764 where
14765 S: Clone + ToOffset,
14766 {
14767 while let Some(region) = self.last() {
14768 let all_selections_inside_invalidation_ranges =
14769 if selections.len() == region.ranges().len() {
14770 selections
14771 .iter()
14772 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14773 .all(|(selection, invalidation_range)| {
14774 let head = selection.head().to_offset(buffer);
14775 invalidation_range.start <= head && invalidation_range.end >= head
14776 })
14777 } else {
14778 false
14779 };
14780
14781 if all_selections_inside_invalidation_ranges {
14782 break;
14783 } else {
14784 self.pop();
14785 }
14786 }
14787 }
14788}
14789
14790impl<T> Default for InvalidationStack<T> {
14791 fn default() -> Self {
14792 Self(Default::default())
14793 }
14794}
14795
14796impl<T> Deref for InvalidationStack<T> {
14797 type Target = Vec<T>;
14798
14799 fn deref(&self) -> &Self::Target {
14800 &self.0
14801 }
14802}
14803
14804impl<T> DerefMut for InvalidationStack<T> {
14805 fn deref_mut(&mut self) -> &mut Self::Target {
14806 &mut self.0
14807 }
14808}
14809
14810impl InvalidationRegion for SnippetState {
14811 fn ranges(&self) -> &[Range<Anchor>] {
14812 &self.ranges[self.active_index]
14813 }
14814}
14815
14816pub fn diagnostic_block_renderer(
14817 diagnostic: Diagnostic,
14818 max_message_rows: Option<u8>,
14819 allow_closing: bool,
14820 _is_valid: bool,
14821) -> RenderBlock {
14822 let (text_without_backticks, code_ranges) =
14823 highlight_diagnostic_message(&diagnostic, max_message_rows);
14824
14825 Arc::new(move |cx: &mut BlockContext| {
14826 let group_id: SharedString = cx.block_id.to_string().into();
14827
14828 let mut text_style = cx.text_style().clone();
14829 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14830 let theme_settings = ThemeSettings::get_global(cx);
14831 text_style.font_family = theme_settings.buffer_font.family.clone();
14832 text_style.font_style = theme_settings.buffer_font.style;
14833 text_style.font_features = theme_settings.buffer_font.features.clone();
14834 text_style.font_weight = theme_settings.buffer_font.weight;
14835
14836 let multi_line_diagnostic = diagnostic.message.contains('\n');
14837
14838 let buttons = |diagnostic: &Diagnostic| {
14839 if multi_line_diagnostic {
14840 v_flex()
14841 } else {
14842 h_flex()
14843 }
14844 .when(allow_closing, |div| {
14845 div.children(diagnostic.is_primary.then(|| {
14846 IconButton::new("close-block", IconName::XCircle)
14847 .icon_color(Color::Muted)
14848 .size(ButtonSize::Compact)
14849 .style(ButtonStyle::Transparent)
14850 .visible_on_hover(group_id.clone())
14851 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14852 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14853 }))
14854 })
14855 .child(
14856 IconButton::new("copy-block", IconName::Copy)
14857 .icon_color(Color::Muted)
14858 .size(ButtonSize::Compact)
14859 .style(ButtonStyle::Transparent)
14860 .visible_on_hover(group_id.clone())
14861 .on_click({
14862 let message = diagnostic.message.clone();
14863 move |_click, cx| {
14864 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14865 }
14866 })
14867 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14868 )
14869 };
14870
14871 let icon_size = buttons(&diagnostic)
14872 .into_any_element()
14873 .layout_as_root(AvailableSpace::min_size(), cx);
14874
14875 h_flex()
14876 .id(cx.block_id)
14877 .group(group_id.clone())
14878 .relative()
14879 .size_full()
14880 .block_mouse_down()
14881 .pl(cx.gutter_dimensions.width)
14882 .w(cx.max_width - cx.gutter_dimensions.full_width())
14883 .child(
14884 div()
14885 .flex()
14886 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14887 .flex_shrink(),
14888 )
14889 .child(buttons(&diagnostic))
14890 .child(div().flex().flex_shrink_0().child(
14891 StyledText::new(text_without_backticks.clone()).with_highlights(
14892 &text_style,
14893 code_ranges.iter().map(|range| {
14894 (
14895 range.clone(),
14896 HighlightStyle {
14897 font_weight: Some(FontWeight::BOLD),
14898 ..Default::default()
14899 },
14900 )
14901 }),
14902 ),
14903 ))
14904 .into_any_element()
14905 })
14906}
14907
14908pub fn highlight_diagnostic_message(
14909 diagnostic: &Diagnostic,
14910 mut max_message_rows: Option<u8>,
14911) -> (SharedString, Vec<Range<usize>>) {
14912 let mut text_without_backticks = String::new();
14913 let mut code_ranges = Vec::new();
14914
14915 if let Some(source) = &diagnostic.source {
14916 text_without_backticks.push_str(source);
14917 code_ranges.push(0..source.len());
14918 text_without_backticks.push_str(": ");
14919 }
14920
14921 let mut prev_offset = 0;
14922 let mut in_code_block = false;
14923 let has_row_limit = max_message_rows.is_some();
14924 let mut newline_indices = diagnostic
14925 .message
14926 .match_indices('\n')
14927 .filter(|_| has_row_limit)
14928 .map(|(ix, _)| ix)
14929 .fuse()
14930 .peekable();
14931
14932 for (quote_ix, _) in diagnostic
14933 .message
14934 .match_indices('`')
14935 .chain([(diagnostic.message.len(), "")])
14936 {
14937 let mut first_newline_ix = None;
14938 let mut last_newline_ix = None;
14939 while let Some(newline_ix) = newline_indices.peek() {
14940 if *newline_ix < quote_ix {
14941 if first_newline_ix.is_none() {
14942 first_newline_ix = Some(*newline_ix);
14943 }
14944 last_newline_ix = Some(*newline_ix);
14945
14946 if let Some(rows_left) = &mut max_message_rows {
14947 if *rows_left == 0 {
14948 break;
14949 } else {
14950 *rows_left -= 1;
14951 }
14952 }
14953 let _ = newline_indices.next();
14954 } else {
14955 break;
14956 }
14957 }
14958 let prev_len = text_without_backticks.len();
14959 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14960 text_without_backticks.push_str(new_text);
14961 if in_code_block {
14962 code_ranges.push(prev_len..text_without_backticks.len());
14963 }
14964 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14965 in_code_block = !in_code_block;
14966 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14967 text_without_backticks.push_str("...");
14968 break;
14969 }
14970 }
14971
14972 (text_without_backticks.into(), code_ranges)
14973}
14974
14975fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14976 match severity {
14977 DiagnosticSeverity::ERROR => colors.error,
14978 DiagnosticSeverity::WARNING => colors.warning,
14979 DiagnosticSeverity::INFORMATION => colors.info,
14980 DiagnosticSeverity::HINT => colors.info,
14981 _ => colors.ignored,
14982 }
14983}
14984
14985pub fn styled_runs_for_code_label<'a>(
14986 label: &'a CodeLabel,
14987 syntax_theme: &'a theme::SyntaxTheme,
14988) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14989 let fade_out = HighlightStyle {
14990 fade_out: Some(0.35),
14991 ..Default::default()
14992 };
14993
14994 let mut prev_end = label.filter_range.end;
14995 label
14996 .runs
14997 .iter()
14998 .enumerate()
14999 .flat_map(move |(ix, (range, highlight_id))| {
15000 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15001 style
15002 } else {
15003 return Default::default();
15004 };
15005 let mut muted_style = style;
15006 muted_style.highlight(fade_out);
15007
15008 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15009 if range.start >= label.filter_range.end {
15010 if range.start > prev_end {
15011 runs.push((prev_end..range.start, fade_out));
15012 }
15013 runs.push((range.clone(), muted_style));
15014 } else if range.end <= label.filter_range.end {
15015 runs.push((range.clone(), style));
15016 } else {
15017 runs.push((range.start..label.filter_range.end, style));
15018 runs.push((label.filter_range.end..range.end, muted_style));
15019 }
15020 prev_end = cmp::max(prev_end, range.end);
15021
15022 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15023 runs.push((prev_end..label.text.len(), fade_out));
15024 }
15025
15026 runs
15027 })
15028}
15029
15030pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15031 let mut prev_index = 0;
15032 let mut prev_codepoint: Option<char> = None;
15033 text.char_indices()
15034 .chain([(text.len(), '\0')])
15035 .filter_map(move |(index, codepoint)| {
15036 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15037 let is_boundary = index == text.len()
15038 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15039 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15040 if is_boundary {
15041 let chunk = &text[prev_index..index];
15042 prev_index = index;
15043 Some(chunk)
15044 } else {
15045 None
15046 }
15047 })
15048}
15049
15050pub trait RangeToAnchorExt: Sized {
15051 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15052
15053 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15054 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15055 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15056 }
15057}
15058
15059impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15060 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15061 let start_offset = self.start.to_offset(snapshot);
15062 let end_offset = self.end.to_offset(snapshot);
15063 if start_offset == end_offset {
15064 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15065 } else {
15066 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15067 }
15068 }
15069}
15070
15071pub trait RowExt {
15072 fn as_f32(&self) -> f32;
15073
15074 fn next_row(&self) -> Self;
15075
15076 fn previous_row(&self) -> Self;
15077
15078 fn minus(&self, other: Self) -> u32;
15079}
15080
15081impl RowExt for DisplayRow {
15082 fn as_f32(&self) -> f32 {
15083 self.0 as f32
15084 }
15085
15086 fn next_row(&self) -> Self {
15087 Self(self.0 + 1)
15088 }
15089
15090 fn previous_row(&self) -> Self {
15091 Self(self.0.saturating_sub(1))
15092 }
15093
15094 fn minus(&self, other: Self) -> u32 {
15095 self.0 - other.0
15096 }
15097}
15098
15099impl RowExt for MultiBufferRow {
15100 fn as_f32(&self) -> f32 {
15101 self.0 as f32
15102 }
15103
15104 fn next_row(&self) -> Self {
15105 Self(self.0 + 1)
15106 }
15107
15108 fn previous_row(&self) -> Self {
15109 Self(self.0.saturating_sub(1))
15110 }
15111
15112 fn minus(&self, other: Self) -> u32 {
15113 self.0 - other.0
15114 }
15115}
15116
15117trait RowRangeExt {
15118 type Row;
15119
15120 fn len(&self) -> usize;
15121
15122 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15123}
15124
15125impl RowRangeExt for Range<MultiBufferRow> {
15126 type Row = MultiBufferRow;
15127
15128 fn len(&self) -> usize {
15129 (self.end.0 - self.start.0) as usize
15130 }
15131
15132 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15133 (self.start.0..self.end.0).map(MultiBufferRow)
15134 }
15135}
15136
15137impl RowRangeExt for Range<DisplayRow> {
15138 type Row = DisplayRow;
15139
15140 fn len(&self) -> usize {
15141 (self.end.0 - self.start.0) as usize
15142 }
15143
15144 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15145 (self.start.0..self.end.0).map(DisplayRow)
15146 }
15147}
15148
15149fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15150 if hunk.diff_base_byte_range.is_empty() {
15151 DiffHunkStatus::Added
15152 } else if hunk.row_range.is_empty() {
15153 DiffHunkStatus::Removed
15154 } else {
15155 DiffHunkStatus::Modified
15156 }
15157}
15158
15159/// If select range has more than one line, we
15160/// just point the cursor to range.start.
15161fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15162 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15163 range
15164 } else {
15165 range.start..range.start
15166 }
15167}
15168
15169pub struct KillRing(ClipboardItem);
15170impl Global for KillRing {}
15171
15172const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);