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 blink_manager;
17mod clangd_ext;
18mod code_context_menus;
19pub mod commit_tooltip;
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 indent_guides;
29mod inlay_hint_cache;
30pub mod items;
31mod linked_editing_ranges;
32mod lsp_ext;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod proposed_changes_editor;
37mod rust_analyzer_ext;
38pub mod scroll;
39mod selections_collection;
40pub mod tasks;
41
42#[cfg(test)]
43mod editor_tests;
44#[cfg(test)]
45mod inline_completion_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50pub(crate) use actions::*;
51pub use actions::{AcceptEditPrediction, OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use buffer_diff::DiffHunkSecondaryStatus;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
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::{AcceptEditPredictionBinding, LineWithInvisibles, PositionMap};
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::StringMatchCandidate;
72
73use code_context_menus::{
74 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
75 CompletionsMenu, ContextMenuOrigin,
76};
77use git::blame::GitBlame;
78use gpui::{
79 div, impl_actions, point, prelude::*, pulsating_between, px, relative, size, Action, Animation,
80 AnimationExt, AnyElement, App, AsyncWindowContext, AvailableSpace, Background, Bounds,
81 ClipboardEntry, ClipboardItem, Context, DispatchPhase, ElementId, Entity, EntityInputHandler,
82 EventEmitter, FocusHandle, FocusOutEvent, Focusable, FontId, FontWeight, Global,
83 HighlightStyle, Hsla, InteractiveText, KeyContext, Modifiers, MouseButton, MouseDownEvent,
84 PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText, Subscription,
85 Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle,
86 WeakEntity, WeakFocusHandle, Window,
87};
88use highlight_matching_bracket::refresh_matching_bracket_highlights;
89use hover_popover::{hide_hover, HoverState};
90use indent_guides::ActiveIndentGuidesState;
91use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
92pub use inline_completion::Direction;
93use inline_completion::{EditPredictionProvider, InlineCompletionProviderHandle};
94pub use items::MAX_TAB_TITLE_LEN;
95use itertools::Itertools;
96use language::{
97 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
98 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
99 CompletionDocumentation, CursorShape, Diagnostic, DiskState, EditPredictionsMode, EditPreview,
100 HighlightedText, IndentKind, IndentSize, Language, OffsetRangeExt, Point, Selection,
101 SelectionGoal, TextObject, TransactionId, TreeSitterOptions,
102};
103use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
104use linked_editing_ranges::refresh_linked_ranges;
105use mouse_context_menu::MouseContextMenu;
106pub use proposed_changes_editor::{
107 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
108};
109use similar::{ChangeTag, TextDiff};
110use std::iter::Peekable;
111use task::{ResolvedTask, TaskTemplate, TaskVariables};
112
113use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
114pub use lsp::CompletionContext;
115use lsp::{
116 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
117 LanguageServerId, LanguageServerName,
118};
119
120use language::BufferSnapshot;
121use movement::TextLayoutDetails;
122pub use multi_buffer::{
123 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, RowInfo,
124 ToOffset, ToPoint,
125};
126use multi_buffer::{
127 ExcerptInfo, ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow,
128 ToOffsetUtf16,
129};
130use project::{
131 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
132 project_settings::{GitGutterSetting, ProjectSettings},
133 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
134 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
135};
136use rand::prelude::*;
137use rpc::{proto::*, ErrorExt};
138use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
139use selections_collection::{
140 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
141};
142use serde::{Deserialize, Serialize};
143use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
144use smallvec::SmallVec;
145use snippet::Snippet;
146use std::{
147 any::TypeId,
148 borrow::Cow,
149 cell::RefCell,
150 cmp::{self, Ordering, Reverse},
151 mem,
152 num::NonZeroU32,
153 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
154 path::{Path, PathBuf},
155 rc::Rc,
156 sync::Arc,
157 time::{Duration, Instant},
158};
159pub use sum_tree::Bias;
160use sum_tree::TreeMap;
161use text::{BufferId, OffsetUtf16, Rope};
162use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
163use ui::{
164 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize, Key,
165 Tooltip,
166};
167use util::{defer, maybe, post_inc, RangeExt, ResultExt, TakeUntilExt, TryFutureExt};
168use workspace::item::{ItemHandle, PreviewTabsSettings};
169use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
170use workspace::{
171 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
172};
173use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
174
175use crate::hover_links::{find_url, find_url_from_range};
176use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
177
178pub const FILE_HEADER_HEIGHT: u32 = 2;
179pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
180pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
181pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
182const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
183const MAX_LINE_LEN: usize = 1024;
184const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
185const MAX_SELECTION_HISTORY_LEN: usize = 1024;
186pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
187#[doc(hidden)]
188pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
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(crate) const EDIT_PREDICTION_KEY_CONTEXT: &str = "edit_prediction";
194pub(crate) const EDIT_PREDICTION_CONFLICT_KEY_CONTEXT: &str = "edit_prediction_conflict";
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakEntity<Workspace>>,
201 cx: &mut App,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(
246 link_ranges,
247 move |clicked_range_ix, window, cx| match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace
253 .open_abs_path(path.clone(), false, window, cx)
254 .detach();
255 });
256 }
257 }
258 },
259 )
260}
261
262#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
263pub enum InlayId {
264 InlineCompletion(usize),
265 Hint(usize),
266}
267
268impl InlayId {
269 fn id(&self) -> usize {
270 match self {
271 Self::InlineCompletion(id) => *id,
272 Self::Hint(id) => *id,
273 }
274 }
275}
276
277enum DocumentHighlightRead {}
278enum DocumentHighlightWrite {}
279enum InputComposition {}
280
281#[derive(Debug, Copy, Clone, PartialEq, Eq)]
282pub enum Navigated {
283 Yes,
284 No,
285}
286
287impl Navigated {
288 pub fn from_bool(yes: bool) -> Navigated {
289 if yes {
290 Navigated::Yes
291 } else {
292 Navigated::No
293 }
294 }
295}
296
297pub fn init_settings(cx: &mut App) {
298 EditorSettings::register(cx);
299}
300
301pub fn init(cx: &mut App) {
302 init_settings(cx);
303
304 workspace::register_project_item::<Editor>(cx);
305 workspace::FollowableViewRegistry::register::<Editor>(cx);
306 workspace::register_serializable_item::<Editor>(cx);
307
308 cx.observe_new(
309 |workspace: &mut Workspace, _: Option<&mut Window>, _cx: &mut Context<Workspace>| {
310 workspace.register_action(Editor::new_file);
311 workspace.register_action(Editor::new_file_vertical);
312 workspace.register_action(Editor::new_file_horizontal);
313 workspace.register_action(Editor::cancel_language_server_work);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(
322 Default::default(),
323 app_state,
324 cx,
325 |workspace, window, cx| {
326 Editor::new_file(workspace, &Default::default(), window, cx)
327 },
328 )
329 .detach();
330 }
331 });
332 cx.on_action(move |_: &workspace::NewWindow, cx| {
333 let app_state = workspace::AppState::global(cx);
334 if let Some(app_state) = app_state.upgrade() {
335 workspace::open_new(
336 Default::default(),
337 app_state,
338 cx,
339 |workspace, window, cx| {
340 cx.activate(true);
341 Editor::new_file(workspace, &Default::default(), window, cx)
342 },
343 )
344 .detach();
345 }
346 });
347}
348
349pub struct SearchWithinRange;
350
351trait InvalidationRegion {
352 fn ranges(&self) -> &[Range<Anchor>];
353}
354
355#[derive(Clone, Debug, PartialEq)]
356pub enum SelectPhase {
357 Begin {
358 position: DisplayPoint,
359 add: bool,
360 click_count: usize,
361 },
362 BeginColumnar {
363 position: DisplayPoint,
364 reset: bool,
365 goal_column: u32,
366 },
367 Extend {
368 position: DisplayPoint,
369 click_count: usize,
370 },
371 Update {
372 position: DisplayPoint,
373 goal_column: u32,
374 scroll_delta: gpui::Point<f32>,
375 },
376 End,
377}
378
379#[derive(Clone, Debug)]
380pub enum SelectMode {
381 Character,
382 Word(Range<Anchor>),
383 Line(Range<Anchor>),
384 All,
385}
386
387#[derive(Copy, Clone, PartialEq, Eq, Debug)]
388pub enum EditorMode {
389 SingleLine { auto_width: bool },
390 AutoHeight { max_lines: usize },
391 Full,
392}
393
394#[derive(Copy, Clone, Debug)]
395pub enum SoftWrap {
396 /// Prefer not to wrap at all.
397 ///
398 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
399 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
400 GitDiff,
401 /// Prefer a single line generally, unless an overly long line is encountered.
402 None,
403 /// Soft wrap lines that exceed the editor width.
404 EditorWidth,
405 /// Soft wrap lines at the preferred line length.
406 Column(u32),
407 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
408 Bounded(u32),
409}
410
411#[derive(Clone)]
412pub struct EditorStyle {
413 pub background: Hsla,
414 pub local_player: PlayerColor,
415 pub text: TextStyle,
416 pub scrollbar_width: Pixels,
417 pub syntax: Arc<SyntaxTheme>,
418 pub status: StatusColors,
419 pub inlay_hints_style: HighlightStyle,
420 pub inline_completion_styles: InlineCompletionStyles,
421 pub unnecessary_code_fade: f32,
422}
423
424impl Default for EditorStyle {
425 fn default() -> Self {
426 Self {
427 background: Hsla::default(),
428 local_player: PlayerColor::default(),
429 text: TextStyle::default(),
430 scrollbar_width: Pixels::default(),
431 syntax: Default::default(),
432 // HACK: Status colors don't have a real default.
433 // We should look into removing the status colors from the editor
434 // style and retrieve them directly from the theme.
435 status: StatusColors::dark(),
436 inlay_hints_style: HighlightStyle::default(),
437 inline_completion_styles: InlineCompletionStyles {
438 insertion: HighlightStyle::default(),
439 whitespace: HighlightStyle::default(),
440 },
441 unnecessary_code_fade: Default::default(),
442 }
443 }
444}
445
446pub fn make_inlay_hints_style(cx: &mut App) -> HighlightStyle {
447 let show_background = language_settings::language_settings(None, None, cx)
448 .inlay_hints
449 .show_background;
450
451 HighlightStyle {
452 color: Some(cx.theme().status().hint),
453 background_color: show_background.then(|| cx.theme().status().hint_background),
454 ..HighlightStyle::default()
455 }
456}
457
458pub fn make_suggestion_styles(cx: &mut App) -> InlineCompletionStyles {
459 InlineCompletionStyles {
460 insertion: HighlightStyle {
461 color: Some(cx.theme().status().predictive),
462 ..HighlightStyle::default()
463 },
464 whitespace: HighlightStyle {
465 background_color: Some(cx.theme().status().created_background),
466 ..HighlightStyle::default()
467 },
468 }
469}
470
471type CompletionId = usize;
472
473pub(crate) enum EditDisplayMode {
474 TabAccept,
475 DiffPopover,
476 Inline,
477}
478
479enum InlineCompletion {
480 Edit {
481 edits: Vec<(Range<Anchor>, String)>,
482 edit_preview: Option<EditPreview>,
483 display_mode: EditDisplayMode,
484 snapshot: BufferSnapshot,
485 },
486 Move {
487 target: Anchor,
488 snapshot: BufferSnapshot,
489 },
490}
491
492struct InlineCompletionState {
493 inlay_ids: Vec<InlayId>,
494 completion: InlineCompletion,
495 completion_id: Option<SharedString>,
496 invalidation_range: Range<Anchor>,
497}
498
499enum EditPredictionSettings {
500 Disabled,
501 Enabled {
502 show_in_menu: bool,
503 preview_requires_modifier: bool,
504 },
505}
506
507enum InlineCompletionHighlight {}
508
509pub enum MenuInlineCompletionsPolicy {
510 Never,
511 ByProvider,
512}
513
514pub enum EditPredictionPreview {
515 /// Modifier is not pressed
516 Inactive,
517 /// Modifier pressed
518 Active {
519 previous_scroll_position: Option<ScrollAnchor>,
520 },
521}
522
523#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
524struct EditorActionId(usize);
525
526impl EditorActionId {
527 pub fn post_inc(&mut self) -> Self {
528 let answer = self.0;
529
530 *self = Self(answer + 1);
531
532 Self(answer)
533 }
534}
535
536// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
537// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
538
539type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
540type GutterHighlight = (fn(&App) -> Hsla, Arc<[Range<Anchor>]>);
541
542#[derive(Default)]
543struct ScrollbarMarkerState {
544 scrollbar_size: Size<Pixels>,
545 dirty: bool,
546 markers: Arc<[PaintQuad]>,
547 pending_refresh: Option<Task<Result<()>>>,
548}
549
550impl ScrollbarMarkerState {
551 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
552 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
553 }
554}
555
556#[derive(Clone, Debug)]
557struct RunnableTasks {
558 templates: Vec<(TaskSourceKind, TaskTemplate)>,
559 offset: MultiBufferOffset,
560 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
561 column: u32,
562 // Values of all named captures, including those starting with '_'
563 extra_variables: HashMap<String, String>,
564 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
565 context_range: Range<BufferOffset>,
566}
567
568impl RunnableTasks {
569 fn resolve<'a>(
570 &'a self,
571 cx: &'a task::TaskContext,
572 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
573 self.templates.iter().filter_map(|(kind, template)| {
574 template
575 .resolve_task(&kind.to_id_base(), cx)
576 .map(|task| (kind.clone(), task))
577 })
578 }
579}
580
581#[derive(Clone)]
582struct ResolvedTasks {
583 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
584 position: Anchor,
585}
586#[derive(Copy, Clone, Debug)]
587struct MultiBufferOffset(usize);
588#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
589struct BufferOffset(usize);
590
591// Addons allow storing per-editor state in other crates (e.g. Vim)
592pub trait Addon: 'static {
593 fn extend_key_context(&self, _: &mut KeyContext, _: &App) {}
594
595 fn render_buffer_header_controls(
596 &self,
597 _: &ExcerptInfo,
598 _: &Window,
599 _: &App,
600 ) -> Option<AnyElement> {
601 None
602 }
603
604 fn to_any(&self) -> &dyn std::any::Any;
605}
606
607#[derive(Debug, Copy, Clone, PartialEq, Eq)]
608pub enum IsVimMode {
609 Yes,
610 No,
611}
612
613/// Zed's primary implementation of text input, allowing users to edit a [`MultiBuffer`].
614///
615/// See the [module level documentation](self) for more information.
616pub struct Editor {
617 focus_handle: FocusHandle,
618 last_focused_descendant: Option<WeakFocusHandle>,
619 /// The text buffer being edited
620 buffer: Entity<MultiBuffer>,
621 /// Map of how text in the buffer should be displayed.
622 /// Handles soft wraps, folds, fake inlay text insertions, etc.
623 pub display_map: Entity<DisplayMap>,
624 pub selections: SelectionsCollection,
625 pub scroll_manager: ScrollManager,
626 /// When inline assist editors are linked, they all render cursors because
627 /// typing enters text into each of them, even the ones that aren't focused.
628 pub(crate) show_cursor_when_unfocused: bool,
629 columnar_selection_tail: Option<Anchor>,
630 add_selections_state: Option<AddSelectionsState>,
631 select_next_state: Option<SelectNextState>,
632 select_prev_state: Option<SelectNextState>,
633 selection_history: SelectionHistory,
634 autoclose_regions: Vec<AutocloseRegion>,
635 snippet_stack: InvalidationStack<SnippetState>,
636 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
637 ime_transaction: Option<TransactionId>,
638 active_diagnostics: Option<ActiveDiagnosticGroup>,
639 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
640
641 // TODO: make this a access method
642 pub project: Option<Entity<Project>>,
643 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
644 completion_provider: Option<Box<dyn CompletionProvider>>,
645 collaboration_hub: Option<Box<dyn CollaborationHub>>,
646 blink_manager: Entity<BlinkManager>,
647 show_cursor_names: bool,
648 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
649 pub show_local_selections: bool,
650 mode: EditorMode,
651 show_breadcrumbs: bool,
652 show_gutter: bool,
653 show_scrollbars: bool,
654 show_line_numbers: Option<bool>,
655 use_relative_line_numbers: Option<bool>,
656 show_git_diff_gutter: Option<bool>,
657 show_code_actions: Option<bool>,
658 show_runnables: Option<bool>,
659 show_wrap_guides: Option<bool>,
660 show_indent_guides: Option<bool>,
661 placeholder_text: Option<Arc<str>>,
662 highlight_order: usize,
663 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
664 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
665 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
666 scrollbar_marker_state: ScrollbarMarkerState,
667 active_indent_guides_state: ActiveIndentGuidesState,
668 nav_history: Option<ItemNavHistory>,
669 context_menu: RefCell<Option<CodeContextMenu>>,
670 mouse_context_menu: Option<MouseContextMenu>,
671 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
672 signature_help_state: SignatureHelpState,
673 auto_signature_help: Option<bool>,
674 find_all_references_task_sources: Vec<Anchor>,
675 next_completion_id: CompletionId,
676 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
677 code_actions_task: Option<Task<Result<()>>>,
678 document_highlights_task: Option<Task<()>>,
679 linked_editing_range_task: Option<Task<Option<()>>>,
680 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
681 pending_rename: Option<RenameState>,
682 searchable: bool,
683 cursor_shape: CursorShape,
684 current_line_highlight: Option<CurrentLineHighlight>,
685 collapse_matches: bool,
686 autoindent_mode: Option<AutoindentMode>,
687 workspace: Option<(WeakEntity<Workspace>, Option<WorkspaceId>)>,
688 input_enabled: bool,
689 use_modal_editing: bool,
690 read_only: bool,
691 leader_peer_id: Option<PeerId>,
692 remote_id: Option<ViewId>,
693 hover_state: HoverState,
694 pending_mouse_down: Option<Rc<RefCell<Option<MouseDownEvent>>>>,
695 gutter_hovered: bool,
696 hovered_link_state: Option<HoveredLinkState>,
697 edit_prediction_provider: Option<RegisteredInlineCompletionProvider>,
698 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
699 active_inline_completion: Option<InlineCompletionState>,
700 /// Used to prevent flickering as the user types while the menu is open
701 stale_inline_completion_in_menu: Option<InlineCompletionState>,
702 edit_prediction_settings: EditPredictionSettings,
703 inline_completions_hidden_for_vim_mode: bool,
704 show_inline_completions_override: Option<bool>,
705 menu_inline_completions_policy: MenuInlineCompletionsPolicy,
706 edit_prediction_preview: EditPredictionPreview,
707 edit_prediction_cursor_on_leading_whitespace: bool,
708 edit_prediction_requires_modifier_in_leading_space: bool,
709 inlay_hint_cache: InlayHintCache,
710 next_inlay_id: usize,
711 _subscriptions: Vec<Subscription>,
712 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
713 gutter_dimensions: GutterDimensions,
714 style: Option<EditorStyle>,
715 text_style_refinement: Option<TextStyleRefinement>,
716 next_editor_action_id: EditorActionId,
717 editor_actions:
718 Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut Window, &mut Context<Self>)>>>>,
719 use_autoclose: bool,
720 use_auto_surround: bool,
721 auto_replace_emoji_shortcode: bool,
722 show_git_blame_gutter: bool,
723 show_git_blame_inline: bool,
724 show_git_blame_inline_delay_task: Option<Task<()>>,
725 distinguish_unstaged_diff_hunks: bool,
726 git_blame_inline_enabled: bool,
727 serialize_dirty_buffers: bool,
728 show_selection_menu: Option<bool>,
729 blame: Option<Entity<GitBlame>>,
730 blame_subscription: Option<Subscription>,
731 custom_context_menu: Option<
732 Box<
733 dyn 'static
734 + Fn(
735 &mut Self,
736 DisplayPoint,
737 &mut Window,
738 &mut Context<Self>,
739 ) -> Option<Entity<ui::ContextMenu>>,
740 >,
741 >,
742 last_bounds: Option<Bounds<Pixels>>,
743 last_position_map: Option<Rc<PositionMap>>,
744 expect_bounds_change: Option<Bounds<Pixels>>,
745 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
746 tasks_update_task: Option<Task<()>>,
747 in_project_search: bool,
748 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
749 breadcrumb_header: Option<String>,
750 focused_block: Option<FocusedBlock>,
751 next_scroll_position: NextScrollCursorCenterTopBottom,
752 addons: HashMap<TypeId, Box<dyn Addon>>,
753 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
754 selection_mark_mode: bool,
755 toggle_fold_multiple_buffers: Task<()>,
756 _scroll_cursor_center_top_bottom_task: Task<()>,
757}
758
759#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
760enum NextScrollCursorCenterTopBottom {
761 #[default]
762 Center,
763 Top,
764 Bottom,
765}
766
767impl NextScrollCursorCenterTopBottom {
768 fn next(&self) -> Self {
769 match self {
770 Self::Center => Self::Top,
771 Self::Top => Self::Bottom,
772 Self::Bottom => Self::Center,
773 }
774 }
775}
776
777#[derive(Clone)]
778pub struct EditorSnapshot {
779 pub mode: EditorMode,
780 show_gutter: bool,
781 show_line_numbers: Option<bool>,
782 show_git_diff_gutter: Option<bool>,
783 show_code_actions: Option<bool>,
784 show_runnables: Option<bool>,
785 git_blame_gutter_max_author_length: Option<usize>,
786 pub display_snapshot: DisplaySnapshot,
787 pub placeholder_text: Option<Arc<str>>,
788 is_focused: bool,
789 scroll_anchor: ScrollAnchor,
790 ongoing_scroll: OngoingScroll,
791 current_line_highlight: CurrentLineHighlight,
792 gutter_hovered: bool,
793}
794
795const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
796
797#[derive(Default, Debug, Clone, Copy)]
798pub struct GutterDimensions {
799 pub left_padding: Pixels,
800 pub right_padding: Pixels,
801 pub width: Pixels,
802 pub margin: Pixels,
803 pub git_blame_entries_width: Option<Pixels>,
804}
805
806impl GutterDimensions {
807 /// The full width of the space taken up by the gutter.
808 pub fn full_width(&self) -> Pixels {
809 self.margin + self.width
810 }
811
812 /// The width of the space reserved for the fold indicators,
813 /// use alongside 'justify_end' and `gutter_width` to
814 /// right align content with the line numbers
815 pub fn fold_area_width(&self) -> Pixels {
816 self.margin + self.right_padding
817 }
818}
819
820#[derive(Debug)]
821pub struct RemoteSelection {
822 pub replica_id: ReplicaId,
823 pub selection: Selection<Anchor>,
824 pub cursor_shape: CursorShape,
825 pub peer_id: PeerId,
826 pub line_mode: bool,
827 pub participant_index: Option<ParticipantIndex>,
828 pub user_name: Option<SharedString>,
829}
830
831#[derive(Clone, Debug)]
832struct SelectionHistoryEntry {
833 selections: Arc<[Selection<Anchor>]>,
834 select_next_state: Option<SelectNextState>,
835 select_prev_state: Option<SelectNextState>,
836 add_selections_state: Option<AddSelectionsState>,
837}
838
839enum SelectionHistoryMode {
840 Normal,
841 Undoing,
842 Redoing,
843}
844
845#[derive(Clone, PartialEq, Eq, Hash)]
846struct HoveredCursor {
847 replica_id: u16,
848 selection_id: usize,
849}
850
851impl Default for SelectionHistoryMode {
852 fn default() -> Self {
853 Self::Normal
854 }
855}
856
857#[derive(Default)]
858struct SelectionHistory {
859 #[allow(clippy::type_complexity)]
860 selections_by_transaction:
861 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
862 mode: SelectionHistoryMode,
863 undo_stack: VecDeque<SelectionHistoryEntry>,
864 redo_stack: VecDeque<SelectionHistoryEntry>,
865}
866
867impl SelectionHistory {
868 fn insert_transaction(
869 &mut self,
870 transaction_id: TransactionId,
871 selections: Arc<[Selection<Anchor>]>,
872 ) {
873 self.selections_by_transaction
874 .insert(transaction_id, (selections, None));
875 }
876
877 #[allow(clippy::type_complexity)]
878 fn transaction(
879 &self,
880 transaction_id: TransactionId,
881 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
882 self.selections_by_transaction.get(&transaction_id)
883 }
884
885 #[allow(clippy::type_complexity)]
886 fn transaction_mut(
887 &mut self,
888 transaction_id: TransactionId,
889 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
890 self.selections_by_transaction.get_mut(&transaction_id)
891 }
892
893 fn push(&mut self, entry: SelectionHistoryEntry) {
894 if !entry.selections.is_empty() {
895 match self.mode {
896 SelectionHistoryMode::Normal => {
897 self.push_undo(entry);
898 self.redo_stack.clear();
899 }
900 SelectionHistoryMode::Undoing => self.push_redo(entry),
901 SelectionHistoryMode::Redoing => self.push_undo(entry),
902 }
903 }
904 }
905
906 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
907 if self
908 .undo_stack
909 .back()
910 .map_or(true, |e| e.selections != entry.selections)
911 {
912 self.undo_stack.push_back(entry);
913 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
914 self.undo_stack.pop_front();
915 }
916 }
917 }
918
919 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
920 if self
921 .redo_stack
922 .back()
923 .map_or(true, |e| e.selections != entry.selections)
924 {
925 self.redo_stack.push_back(entry);
926 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
927 self.redo_stack.pop_front();
928 }
929 }
930 }
931}
932
933struct RowHighlight {
934 index: usize,
935 range: Range<Anchor>,
936 color: Hsla,
937 should_autoscroll: bool,
938}
939
940#[derive(Clone, Debug)]
941struct AddSelectionsState {
942 above: bool,
943 stack: Vec<usize>,
944}
945
946#[derive(Clone)]
947struct SelectNextState {
948 query: AhoCorasick,
949 wordwise: bool,
950 done: bool,
951}
952
953impl std::fmt::Debug for SelectNextState {
954 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
955 f.debug_struct(std::any::type_name::<Self>())
956 .field("wordwise", &self.wordwise)
957 .field("done", &self.done)
958 .finish()
959 }
960}
961
962#[derive(Debug)]
963struct AutocloseRegion {
964 selection_id: usize,
965 range: Range<Anchor>,
966 pair: BracketPair,
967}
968
969#[derive(Debug)]
970struct SnippetState {
971 ranges: Vec<Vec<Range<Anchor>>>,
972 active_index: usize,
973 choices: Vec<Option<Vec<String>>>,
974}
975
976#[doc(hidden)]
977pub struct RenameState {
978 pub range: Range<Anchor>,
979 pub old_name: Arc<str>,
980 pub editor: Entity<Editor>,
981 block_id: CustomBlockId,
982}
983
984struct InvalidationStack<T>(Vec<T>);
985
986struct RegisteredInlineCompletionProvider {
987 provider: Arc<dyn InlineCompletionProviderHandle>,
988 _subscription: Subscription,
989}
990
991#[derive(Debug)]
992struct ActiveDiagnosticGroup {
993 primary_range: Range<Anchor>,
994 primary_message: String,
995 group_id: usize,
996 blocks: HashMap<CustomBlockId, Diagnostic>,
997 is_valid: bool,
998}
999
1000#[derive(Serialize, Deserialize, Clone, Debug)]
1001pub struct ClipboardSelection {
1002 pub len: usize,
1003 pub is_entire_line: bool,
1004 pub first_line_indent: u32,
1005}
1006
1007#[derive(Debug)]
1008pub(crate) struct NavigationData {
1009 cursor_anchor: Anchor,
1010 cursor_position: Point,
1011 scroll_anchor: ScrollAnchor,
1012 scroll_top_row: u32,
1013}
1014
1015#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1016pub enum GotoDefinitionKind {
1017 Symbol,
1018 Declaration,
1019 Type,
1020 Implementation,
1021}
1022
1023#[derive(Debug, Clone)]
1024enum InlayHintRefreshReason {
1025 Toggle(bool),
1026 SettingsChange(InlayHintSettings),
1027 NewLinesShown,
1028 BufferEdited(HashSet<Arc<Language>>),
1029 RefreshRequested,
1030 ExcerptsRemoved(Vec<ExcerptId>),
1031}
1032
1033impl InlayHintRefreshReason {
1034 fn description(&self) -> &'static str {
1035 match self {
1036 Self::Toggle(_) => "toggle",
1037 Self::SettingsChange(_) => "settings change",
1038 Self::NewLinesShown => "new lines shown",
1039 Self::BufferEdited(_) => "buffer edited",
1040 Self::RefreshRequested => "refresh requested",
1041 Self::ExcerptsRemoved(_) => "excerpts removed",
1042 }
1043 }
1044}
1045
1046pub enum FormatTarget {
1047 Buffers,
1048 Ranges(Vec<Range<MultiBufferPoint>>),
1049}
1050
1051pub(crate) struct FocusedBlock {
1052 id: BlockId,
1053 focus_handle: WeakFocusHandle,
1054}
1055
1056#[derive(Clone)]
1057enum JumpData {
1058 MultiBufferRow {
1059 row: MultiBufferRow,
1060 line_offset_from_top: u32,
1061 },
1062 MultiBufferPoint {
1063 excerpt_id: ExcerptId,
1064 position: Point,
1065 anchor: text::Anchor,
1066 line_offset_from_top: u32,
1067 },
1068}
1069
1070pub enum MultibufferSelectionMode {
1071 First,
1072 All,
1073}
1074
1075impl Editor {
1076 pub fn single_line(window: &mut Window, cx: &mut Context<Self>) -> Self {
1077 let buffer = cx.new(|cx| Buffer::local("", cx));
1078 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1079 Self::new(
1080 EditorMode::SingleLine { auto_width: false },
1081 buffer,
1082 None,
1083 false,
1084 window,
1085 cx,
1086 )
1087 }
1088
1089 pub fn multi_line(window: &mut Window, cx: &mut Context<Self>) -> Self {
1090 let buffer = cx.new(|cx| Buffer::local("", cx));
1091 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1092 Self::new(EditorMode::Full, buffer, None, false, window, cx)
1093 }
1094
1095 pub fn auto_width(window: &mut Window, cx: &mut Context<Self>) -> Self {
1096 let buffer = cx.new(|cx| Buffer::local("", cx));
1097 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1098 Self::new(
1099 EditorMode::SingleLine { auto_width: true },
1100 buffer,
1101 None,
1102 false,
1103 window,
1104 cx,
1105 )
1106 }
1107
1108 pub fn auto_height(max_lines: usize, window: &mut Window, cx: &mut Context<Self>) -> Self {
1109 let buffer = cx.new(|cx| Buffer::local("", cx));
1110 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1111 Self::new(
1112 EditorMode::AutoHeight { max_lines },
1113 buffer,
1114 None,
1115 false,
1116 window,
1117 cx,
1118 )
1119 }
1120
1121 pub fn for_buffer(
1122 buffer: Entity<Buffer>,
1123 project: Option<Entity<Project>>,
1124 window: &mut Window,
1125 cx: &mut Context<Self>,
1126 ) -> Self {
1127 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1128 Self::new(EditorMode::Full, buffer, project, false, window, cx)
1129 }
1130
1131 pub fn for_multibuffer(
1132 buffer: Entity<MultiBuffer>,
1133 project: Option<Entity<Project>>,
1134 show_excerpt_controls: bool,
1135 window: &mut Window,
1136 cx: &mut Context<Self>,
1137 ) -> Self {
1138 Self::new(
1139 EditorMode::Full,
1140 buffer,
1141 project,
1142 show_excerpt_controls,
1143 window,
1144 cx,
1145 )
1146 }
1147
1148 pub fn clone(&self, window: &mut Window, cx: &mut Context<Self>) -> Self {
1149 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1150 let mut clone = Self::new(
1151 self.mode,
1152 self.buffer.clone(),
1153 self.project.clone(),
1154 show_excerpt_controls,
1155 window,
1156 cx,
1157 );
1158 self.display_map.update(cx, |display_map, cx| {
1159 let snapshot = display_map.snapshot(cx);
1160 clone.display_map.update(cx, |display_map, cx| {
1161 display_map.set_state(&snapshot, cx);
1162 });
1163 });
1164 clone.selections.clone_state(&self.selections);
1165 clone.scroll_manager.clone_state(&self.scroll_manager);
1166 clone.searchable = self.searchable;
1167 clone
1168 }
1169
1170 pub fn new(
1171 mode: EditorMode,
1172 buffer: Entity<MultiBuffer>,
1173 project: Option<Entity<Project>>,
1174 show_excerpt_controls: bool,
1175 window: &mut Window,
1176 cx: &mut Context<Self>,
1177 ) -> Self {
1178 let style = window.text_style();
1179 let font_size = style.font_size.to_pixels(window.rem_size());
1180 let editor = cx.entity().downgrade();
1181 let fold_placeholder = FoldPlaceholder {
1182 constrain_width: true,
1183 render: Arc::new(move |fold_id, fold_range, _, cx| {
1184 let editor = editor.clone();
1185 div()
1186 .id(fold_id)
1187 .bg(cx.theme().colors().ghost_element_background)
1188 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1189 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1190 .rounded_sm()
1191 .size_full()
1192 .cursor_pointer()
1193 .child("⋯")
1194 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
1195 .on_click(move |_, _window, cx| {
1196 editor
1197 .update(cx, |editor, cx| {
1198 editor.unfold_ranges(
1199 &[fold_range.start..fold_range.end],
1200 true,
1201 false,
1202 cx,
1203 );
1204 cx.stop_propagation();
1205 })
1206 .ok();
1207 })
1208 .into_any()
1209 }),
1210 merge_adjacent: true,
1211 ..Default::default()
1212 };
1213 let display_map = cx.new(|cx| {
1214 DisplayMap::new(
1215 buffer.clone(),
1216 style.font(),
1217 font_size,
1218 None,
1219 show_excerpt_controls,
1220 FILE_HEADER_HEIGHT,
1221 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1222 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1223 fold_placeholder,
1224 cx,
1225 )
1226 });
1227
1228 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1229
1230 let blink_manager = cx.new(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1231
1232 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1233 .then(|| language_settings::SoftWrap::None);
1234
1235 let mut project_subscriptions = Vec::new();
1236 if mode == EditorMode::Full {
1237 if let Some(project) = project.as_ref() {
1238 if buffer.read(cx).is_singleton() {
1239 project_subscriptions.push(cx.observe_in(project, window, |_, _, _, cx| {
1240 cx.emit(EditorEvent::TitleChanged);
1241 }));
1242 }
1243 project_subscriptions.push(cx.subscribe_in(
1244 project,
1245 window,
1246 |editor, _, event, window, cx| {
1247 if let project::Event::RefreshInlayHints = event {
1248 editor
1249 .refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1250 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1251 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1252 let focus_handle = editor.focus_handle(cx);
1253 if focus_handle.is_focused(window) {
1254 let snapshot = buffer.read(cx).snapshot();
1255 for (range, snippet) in snippet_edits {
1256 let editor_range =
1257 language::range_from_lsp(*range).to_offset(&snapshot);
1258 editor
1259 .insert_snippet(
1260 &[editor_range],
1261 snippet.clone(),
1262 window,
1263 cx,
1264 )
1265 .ok();
1266 }
1267 }
1268 }
1269 }
1270 },
1271 ));
1272 if let Some(task_inventory) = project
1273 .read(cx)
1274 .task_store()
1275 .read(cx)
1276 .task_inventory()
1277 .cloned()
1278 {
1279 project_subscriptions.push(cx.observe_in(
1280 &task_inventory,
1281 window,
1282 |editor, _, window, cx| {
1283 editor.tasks_update_task = Some(editor.refresh_runnables(window, cx));
1284 },
1285 ));
1286 }
1287 }
1288 }
1289
1290 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1291
1292 let inlay_hint_settings =
1293 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1294 let focus_handle = cx.focus_handle();
1295 cx.on_focus(&focus_handle, window, Self::handle_focus)
1296 .detach();
1297 cx.on_focus_in(&focus_handle, window, Self::handle_focus_in)
1298 .detach();
1299 cx.on_focus_out(&focus_handle, window, Self::handle_focus_out)
1300 .detach();
1301 cx.on_blur(&focus_handle, window, Self::handle_blur)
1302 .detach();
1303
1304 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1305 Some(false)
1306 } else {
1307 None
1308 };
1309
1310 let mut code_action_providers = Vec::new();
1311 if let Some(project) = project.clone() {
1312 get_uncommitted_diff_for_buffer(
1313 &project,
1314 buffer.read(cx).all_buffers(),
1315 buffer.clone(),
1316 cx,
1317 );
1318 code_action_providers.push(Rc::new(project) as Rc<_>);
1319 }
1320
1321 let mut this = Self {
1322 focus_handle,
1323 show_cursor_when_unfocused: false,
1324 last_focused_descendant: None,
1325 buffer: buffer.clone(),
1326 display_map: display_map.clone(),
1327 selections,
1328 scroll_manager: ScrollManager::new(cx),
1329 columnar_selection_tail: None,
1330 add_selections_state: None,
1331 select_next_state: None,
1332 select_prev_state: None,
1333 selection_history: Default::default(),
1334 autoclose_regions: Default::default(),
1335 snippet_stack: Default::default(),
1336 select_larger_syntax_node_stack: Vec::new(),
1337 ime_transaction: Default::default(),
1338 active_diagnostics: None,
1339 soft_wrap_mode_override,
1340 completion_provider: project.clone().map(|project| Box::new(project) as _),
1341 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1342 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1343 project,
1344 blink_manager: blink_manager.clone(),
1345 show_local_selections: true,
1346 show_scrollbars: true,
1347 mode,
1348 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1349 show_gutter: mode == EditorMode::Full,
1350 show_line_numbers: None,
1351 use_relative_line_numbers: None,
1352 show_git_diff_gutter: None,
1353 show_code_actions: None,
1354 show_runnables: None,
1355 show_wrap_guides: None,
1356 show_indent_guides,
1357 placeholder_text: None,
1358 highlight_order: 0,
1359 highlighted_rows: HashMap::default(),
1360 background_highlights: Default::default(),
1361 gutter_highlights: TreeMap::default(),
1362 scrollbar_marker_state: ScrollbarMarkerState::default(),
1363 active_indent_guides_state: ActiveIndentGuidesState::default(),
1364 nav_history: None,
1365 context_menu: RefCell::new(None),
1366 mouse_context_menu: None,
1367 completion_tasks: Default::default(),
1368 signature_help_state: SignatureHelpState::default(),
1369 auto_signature_help: None,
1370 find_all_references_task_sources: Vec::new(),
1371 next_completion_id: 0,
1372 next_inlay_id: 0,
1373 code_action_providers,
1374 available_code_actions: Default::default(),
1375 code_actions_task: Default::default(),
1376 document_highlights_task: Default::default(),
1377 linked_editing_range_task: Default::default(),
1378 pending_rename: Default::default(),
1379 searchable: true,
1380 cursor_shape: EditorSettings::get_global(cx)
1381 .cursor_shape
1382 .unwrap_or_default(),
1383 current_line_highlight: None,
1384 autoindent_mode: Some(AutoindentMode::EachLine),
1385 collapse_matches: false,
1386 workspace: None,
1387 input_enabled: true,
1388 use_modal_editing: mode == EditorMode::Full,
1389 read_only: false,
1390 use_autoclose: true,
1391 use_auto_surround: true,
1392 auto_replace_emoji_shortcode: false,
1393 leader_peer_id: None,
1394 remote_id: None,
1395 hover_state: Default::default(),
1396 pending_mouse_down: None,
1397 hovered_link_state: Default::default(),
1398 edit_prediction_provider: None,
1399 active_inline_completion: None,
1400 stale_inline_completion_in_menu: None,
1401 edit_prediction_preview: EditPredictionPreview::Inactive,
1402 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1403
1404 gutter_hovered: false,
1405 pixel_position_of_newest_cursor: None,
1406 last_bounds: None,
1407 last_position_map: None,
1408 expect_bounds_change: None,
1409 gutter_dimensions: GutterDimensions::default(),
1410 style: None,
1411 show_cursor_names: false,
1412 hovered_cursors: Default::default(),
1413 next_editor_action_id: EditorActionId::default(),
1414 editor_actions: Rc::default(),
1415 inline_completions_hidden_for_vim_mode: false,
1416 show_inline_completions_override: None,
1417 menu_inline_completions_policy: MenuInlineCompletionsPolicy::ByProvider,
1418 edit_prediction_settings: EditPredictionSettings::Disabled,
1419 edit_prediction_cursor_on_leading_whitespace: false,
1420 edit_prediction_requires_modifier_in_leading_space: true,
1421 custom_context_menu: None,
1422 show_git_blame_gutter: false,
1423 show_git_blame_inline: false,
1424 distinguish_unstaged_diff_hunks: false,
1425 show_selection_menu: None,
1426 show_git_blame_inline_delay_task: None,
1427 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1428 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1429 .session
1430 .restore_unsaved_buffers,
1431 blame: None,
1432 blame_subscription: None,
1433 tasks: Default::default(),
1434 _subscriptions: vec![
1435 cx.observe(&buffer, Self::on_buffer_changed),
1436 cx.subscribe_in(&buffer, window, Self::on_buffer_event),
1437 cx.observe_in(&display_map, window, Self::on_display_map_changed),
1438 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1439 cx.observe_global_in::<SettingsStore>(window, Self::settings_changed),
1440 cx.observe_window_activation(window, |editor, window, cx| {
1441 let active = window.is_window_active();
1442 editor.blink_manager.update(cx, |blink_manager, cx| {
1443 if active {
1444 blink_manager.enable(cx);
1445 } else {
1446 blink_manager.disable(cx);
1447 }
1448 });
1449 }),
1450 ],
1451 tasks_update_task: None,
1452 linked_edit_ranges: Default::default(),
1453 in_project_search: false,
1454 previous_search_ranges: None,
1455 breadcrumb_header: None,
1456 focused_block: None,
1457 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1458 addons: HashMap::default(),
1459 registered_buffers: HashMap::default(),
1460 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1461 selection_mark_mode: false,
1462 toggle_fold_multiple_buffers: Task::ready(()),
1463 text_style_refinement: None,
1464 };
1465 this.tasks_update_task = Some(this.refresh_runnables(window, cx));
1466 this._subscriptions.extend(project_subscriptions);
1467
1468 this.end_selection(window, cx);
1469 this.scroll_manager.show_scrollbar(window, cx);
1470
1471 if mode == EditorMode::Full {
1472 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1473 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1474
1475 if this.git_blame_inline_enabled {
1476 this.git_blame_inline_enabled = true;
1477 this.start_git_blame_inline(false, window, cx);
1478 }
1479
1480 if let Some(buffer) = buffer.read(cx).as_singleton() {
1481 if let Some(project) = this.project.as_ref() {
1482 let lsp_store = project.read(cx).lsp_store();
1483 let handle = lsp_store.update(cx, |lsp_store, cx| {
1484 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1485 });
1486 this.registered_buffers
1487 .insert(buffer.read(cx).remote_id(), handle);
1488 }
1489 }
1490 }
1491
1492 this.report_editor_event("Editor Opened", None, cx);
1493 this
1494 }
1495
1496 pub fn mouse_menu_is_focused(&self, window: &Window, cx: &App) -> bool {
1497 self.mouse_context_menu
1498 .as_ref()
1499 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(window))
1500 }
1501
1502 fn key_context(&self, window: &Window, cx: &App) -> KeyContext {
1503 self.key_context_internal(self.has_active_inline_completion(), window, cx)
1504 }
1505
1506 fn key_context_internal(
1507 &self,
1508 has_active_edit_prediction: bool,
1509 window: &Window,
1510 cx: &App,
1511 ) -> KeyContext {
1512 let mut key_context = KeyContext::new_with_defaults();
1513 key_context.add("Editor");
1514 let mode = match self.mode {
1515 EditorMode::SingleLine { .. } => "single_line",
1516 EditorMode::AutoHeight { .. } => "auto_height",
1517 EditorMode::Full => "full",
1518 };
1519
1520 if EditorSettings::jupyter_enabled(cx) {
1521 key_context.add("jupyter");
1522 }
1523
1524 key_context.set("mode", mode);
1525 if self.pending_rename.is_some() {
1526 key_context.add("renaming");
1527 }
1528
1529 match self.context_menu.borrow().as_ref() {
1530 Some(CodeContextMenu::Completions(_)) => {
1531 key_context.add("menu");
1532 key_context.add("showing_completions");
1533 }
1534 Some(CodeContextMenu::CodeActions(_)) => {
1535 key_context.add("menu");
1536 key_context.add("showing_code_actions")
1537 }
1538 None => {}
1539 }
1540
1541 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1542 if !self.focus_handle(cx).contains_focused(window, cx)
1543 || (self.is_focused(window) || self.mouse_menu_is_focused(window, cx))
1544 {
1545 for addon in self.addons.values() {
1546 addon.extend_key_context(&mut key_context, cx)
1547 }
1548 }
1549
1550 if let Some(extension) = self
1551 .buffer
1552 .read(cx)
1553 .as_singleton()
1554 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1555 {
1556 key_context.set("extension", extension.to_string());
1557 }
1558
1559 if has_active_edit_prediction {
1560 if self.edit_prediction_in_conflict() {
1561 key_context.add(EDIT_PREDICTION_CONFLICT_KEY_CONTEXT);
1562 } else {
1563 key_context.add(EDIT_PREDICTION_KEY_CONTEXT);
1564 key_context.add("copilot_suggestion");
1565 }
1566 }
1567
1568 if self.selection_mark_mode {
1569 key_context.add("selection_mode");
1570 }
1571
1572 key_context
1573 }
1574
1575 pub fn edit_prediction_in_conflict(&self) -> bool {
1576 if !self.show_edit_predictions_in_menu() {
1577 return false;
1578 }
1579
1580 let showing_completions = self
1581 .context_menu
1582 .borrow()
1583 .as_ref()
1584 .map_or(false, |context| {
1585 matches!(context, CodeContextMenu::Completions(_))
1586 });
1587
1588 showing_completions
1589 || self.edit_prediction_requires_modifier()
1590 // Require modifier key when the cursor is on leading whitespace, to allow `tab`
1591 // bindings to insert tab characters.
1592 || (self.edit_prediction_requires_modifier_in_leading_space && self.edit_prediction_cursor_on_leading_whitespace)
1593 }
1594
1595 pub fn accept_edit_prediction_keybind(
1596 &self,
1597 window: &Window,
1598 cx: &App,
1599 ) -> AcceptEditPredictionBinding {
1600 let key_context = self.key_context_internal(true, window, cx);
1601 let in_conflict = self.edit_prediction_in_conflict();
1602
1603 AcceptEditPredictionBinding(
1604 window
1605 .bindings_for_action_in_context(&AcceptEditPrediction, key_context)
1606 .into_iter()
1607 .filter(|binding| {
1608 !in_conflict
1609 || binding
1610 .keystrokes()
1611 .first()
1612 .map_or(false, |keystroke| keystroke.modifiers.modified())
1613 })
1614 .rev()
1615 .min_by_key(|binding| {
1616 binding
1617 .keystrokes()
1618 .first()
1619 .map_or(u8::MAX, |k| k.modifiers.number_of_modifiers())
1620 }),
1621 )
1622 }
1623
1624 pub fn new_file(
1625 workspace: &mut Workspace,
1626 _: &workspace::NewFile,
1627 window: &mut Window,
1628 cx: &mut Context<Workspace>,
1629 ) {
1630 Self::new_in_workspace(workspace, window, cx).detach_and_prompt_err(
1631 "Failed to create buffer",
1632 window,
1633 cx,
1634 |e, _, _| match e.error_code() {
1635 ErrorCode::RemoteUpgradeRequired => Some(format!(
1636 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1637 e.error_tag("required").unwrap_or("the latest version")
1638 )),
1639 _ => None,
1640 },
1641 );
1642 }
1643
1644 pub fn new_in_workspace(
1645 workspace: &mut Workspace,
1646 window: &mut Window,
1647 cx: &mut Context<Workspace>,
1648 ) -> Task<Result<Entity<Editor>>> {
1649 let project = workspace.project().clone();
1650 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1651
1652 cx.spawn_in(window, |workspace, mut cx| async move {
1653 let buffer = create.await?;
1654 workspace.update_in(&mut cx, |workspace, window, cx| {
1655 let editor =
1656 cx.new(|cx| Editor::for_buffer(buffer, Some(project.clone()), window, cx));
1657 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, window, cx);
1658 editor
1659 })
1660 })
1661 }
1662
1663 fn new_file_vertical(
1664 workspace: &mut Workspace,
1665 _: &workspace::NewFileSplitVertical,
1666 window: &mut Window,
1667 cx: &mut Context<Workspace>,
1668 ) {
1669 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), window, cx)
1670 }
1671
1672 fn new_file_horizontal(
1673 workspace: &mut Workspace,
1674 _: &workspace::NewFileSplitHorizontal,
1675 window: &mut Window,
1676 cx: &mut Context<Workspace>,
1677 ) {
1678 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), window, cx)
1679 }
1680
1681 fn new_file_in_direction(
1682 workspace: &mut Workspace,
1683 direction: SplitDirection,
1684 window: &mut Window,
1685 cx: &mut Context<Workspace>,
1686 ) {
1687 let project = workspace.project().clone();
1688 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1689
1690 cx.spawn_in(window, |workspace, mut cx| async move {
1691 let buffer = create.await?;
1692 workspace.update_in(&mut cx, move |workspace, window, cx| {
1693 workspace.split_item(
1694 direction,
1695 Box::new(
1696 cx.new(|cx| Editor::for_buffer(buffer, Some(project.clone()), window, cx)),
1697 ),
1698 window,
1699 cx,
1700 )
1701 })?;
1702 anyhow::Ok(())
1703 })
1704 .detach_and_prompt_err("Failed to create buffer", window, cx, |e, _, _| {
1705 match e.error_code() {
1706 ErrorCode::RemoteUpgradeRequired => Some(format!(
1707 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1708 e.error_tag("required").unwrap_or("the latest version")
1709 )),
1710 _ => None,
1711 }
1712 });
1713 }
1714
1715 pub fn leader_peer_id(&self) -> Option<PeerId> {
1716 self.leader_peer_id
1717 }
1718
1719 pub fn buffer(&self) -> &Entity<MultiBuffer> {
1720 &self.buffer
1721 }
1722
1723 pub fn workspace(&self) -> Option<Entity<Workspace>> {
1724 self.workspace.as_ref()?.0.upgrade()
1725 }
1726
1727 pub fn title<'a>(&self, cx: &'a App) -> Cow<'a, str> {
1728 self.buffer().read(cx).title(cx)
1729 }
1730
1731 pub fn snapshot(&self, window: &mut Window, cx: &mut App) -> EditorSnapshot {
1732 let git_blame_gutter_max_author_length = self
1733 .render_git_blame_gutter(cx)
1734 .then(|| {
1735 if let Some(blame) = self.blame.as_ref() {
1736 let max_author_length =
1737 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1738 Some(max_author_length)
1739 } else {
1740 None
1741 }
1742 })
1743 .flatten();
1744
1745 EditorSnapshot {
1746 mode: self.mode,
1747 show_gutter: self.show_gutter,
1748 show_line_numbers: self.show_line_numbers,
1749 show_git_diff_gutter: self.show_git_diff_gutter,
1750 show_code_actions: self.show_code_actions,
1751 show_runnables: self.show_runnables,
1752 git_blame_gutter_max_author_length,
1753 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1754 scroll_anchor: self.scroll_manager.anchor(),
1755 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1756 placeholder_text: self.placeholder_text.clone(),
1757 is_focused: self.focus_handle.is_focused(window),
1758 current_line_highlight: self
1759 .current_line_highlight
1760 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1761 gutter_hovered: self.gutter_hovered,
1762 }
1763 }
1764
1765 pub fn language_at<T: ToOffset>(&self, point: T, cx: &App) -> Option<Arc<Language>> {
1766 self.buffer.read(cx).language_at(point, cx)
1767 }
1768
1769 pub fn file_at<T: ToOffset>(&self, point: T, cx: &App) -> Option<Arc<dyn language::File>> {
1770 self.buffer.read(cx).read(cx).file_at(point).cloned()
1771 }
1772
1773 pub fn active_excerpt(
1774 &self,
1775 cx: &App,
1776 ) -> Option<(ExcerptId, Entity<Buffer>, Range<text::Anchor>)> {
1777 self.buffer
1778 .read(cx)
1779 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1780 }
1781
1782 pub fn mode(&self) -> EditorMode {
1783 self.mode
1784 }
1785
1786 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1787 self.collaboration_hub.as_deref()
1788 }
1789
1790 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1791 self.collaboration_hub = Some(hub);
1792 }
1793
1794 pub fn set_in_project_search(&mut self, in_project_search: bool) {
1795 self.in_project_search = in_project_search;
1796 }
1797
1798 pub fn set_custom_context_menu(
1799 &mut self,
1800 f: impl 'static
1801 + Fn(
1802 &mut Self,
1803 DisplayPoint,
1804 &mut Window,
1805 &mut Context<Self>,
1806 ) -> Option<Entity<ui::ContextMenu>>,
1807 ) {
1808 self.custom_context_menu = Some(Box::new(f))
1809 }
1810
1811 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1812 self.completion_provider = provider;
1813 }
1814
1815 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1816 self.semantics_provider.clone()
1817 }
1818
1819 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1820 self.semantics_provider = provider;
1821 }
1822
1823 pub fn set_edit_prediction_provider<T>(
1824 &mut self,
1825 provider: Option<Entity<T>>,
1826 window: &mut Window,
1827 cx: &mut Context<Self>,
1828 ) where
1829 T: EditPredictionProvider,
1830 {
1831 self.edit_prediction_provider =
1832 provider.map(|provider| RegisteredInlineCompletionProvider {
1833 _subscription: cx.observe_in(&provider, window, |this, _, window, cx| {
1834 if this.focus_handle.is_focused(window) {
1835 this.update_visible_inline_completion(window, cx);
1836 }
1837 }),
1838 provider: Arc::new(provider),
1839 });
1840 self.refresh_inline_completion(false, false, window, cx);
1841 }
1842
1843 pub fn placeholder_text(&self) -> Option<&str> {
1844 self.placeholder_text.as_deref()
1845 }
1846
1847 pub fn set_placeholder_text(
1848 &mut self,
1849 placeholder_text: impl Into<Arc<str>>,
1850 cx: &mut Context<Self>,
1851 ) {
1852 let placeholder_text = Some(placeholder_text.into());
1853 if self.placeholder_text != placeholder_text {
1854 self.placeholder_text = placeholder_text;
1855 cx.notify();
1856 }
1857 }
1858
1859 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut Context<Self>) {
1860 self.cursor_shape = cursor_shape;
1861
1862 // Disrupt blink for immediate user feedback that the cursor shape has changed
1863 self.blink_manager.update(cx, BlinkManager::show_cursor);
1864
1865 cx.notify();
1866 }
1867
1868 pub fn set_current_line_highlight(
1869 &mut self,
1870 current_line_highlight: Option<CurrentLineHighlight>,
1871 ) {
1872 self.current_line_highlight = current_line_highlight;
1873 }
1874
1875 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1876 self.collapse_matches = collapse_matches;
1877 }
1878
1879 fn register_buffers_with_language_servers(&mut self, cx: &mut Context<Self>) {
1880 let buffers = self.buffer.read(cx).all_buffers();
1881 let Some(lsp_store) = self.lsp_store(cx) else {
1882 return;
1883 };
1884 lsp_store.update(cx, |lsp_store, cx| {
1885 for buffer in buffers {
1886 self.registered_buffers
1887 .entry(buffer.read(cx).remote_id())
1888 .or_insert_with(|| {
1889 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1890 });
1891 }
1892 })
1893 }
1894
1895 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1896 if self.collapse_matches {
1897 return range.start..range.start;
1898 }
1899 range.clone()
1900 }
1901
1902 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut Context<Self>) {
1903 if self.display_map.read(cx).clip_at_line_ends != clip {
1904 self.display_map
1905 .update(cx, |map, _| map.clip_at_line_ends = clip);
1906 }
1907 }
1908
1909 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1910 self.input_enabled = input_enabled;
1911 }
1912
1913 pub fn set_inline_completions_hidden_for_vim_mode(
1914 &mut self,
1915 hidden: bool,
1916 window: &mut Window,
1917 cx: &mut Context<Self>,
1918 ) {
1919 if hidden != self.inline_completions_hidden_for_vim_mode {
1920 self.inline_completions_hidden_for_vim_mode = hidden;
1921 if hidden {
1922 self.update_visible_inline_completion(window, cx);
1923 } else {
1924 self.refresh_inline_completion(true, false, window, cx);
1925 }
1926 }
1927 }
1928
1929 pub fn set_menu_inline_completions_policy(&mut self, value: MenuInlineCompletionsPolicy) {
1930 self.menu_inline_completions_policy = value;
1931 }
1932
1933 pub fn set_autoindent(&mut self, autoindent: bool) {
1934 if autoindent {
1935 self.autoindent_mode = Some(AutoindentMode::EachLine);
1936 } else {
1937 self.autoindent_mode = None;
1938 }
1939 }
1940
1941 pub fn read_only(&self, cx: &App) -> bool {
1942 self.read_only || self.buffer.read(cx).read_only()
1943 }
1944
1945 pub fn set_read_only(&mut self, read_only: bool) {
1946 self.read_only = read_only;
1947 }
1948
1949 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1950 self.use_autoclose = autoclose;
1951 }
1952
1953 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1954 self.use_auto_surround = auto_surround;
1955 }
1956
1957 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1958 self.auto_replace_emoji_shortcode = auto_replace;
1959 }
1960
1961 pub fn toggle_inline_completions(
1962 &mut self,
1963 _: &ToggleEditPrediction,
1964 window: &mut Window,
1965 cx: &mut Context<Self>,
1966 ) {
1967 if self.show_inline_completions_override.is_some() {
1968 self.set_show_edit_predictions(None, window, cx);
1969 } else {
1970 let show_edit_predictions = !self.edit_predictions_enabled();
1971 self.set_show_edit_predictions(Some(show_edit_predictions), window, cx);
1972 }
1973 }
1974
1975 pub fn set_show_edit_predictions(
1976 &mut self,
1977 show_edit_predictions: Option<bool>,
1978 window: &mut Window,
1979 cx: &mut Context<Self>,
1980 ) {
1981 self.show_inline_completions_override = show_edit_predictions;
1982 self.refresh_inline_completion(false, true, window, cx);
1983 }
1984
1985 fn inline_completions_disabled_in_scope(
1986 &self,
1987 buffer: &Entity<Buffer>,
1988 buffer_position: language::Anchor,
1989 cx: &App,
1990 ) -> bool {
1991 let snapshot = buffer.read(cx).snapshot();
1992 let settings = snapshot.settings_at(buffer_position, cx);
1993
1994 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1995 return false;
1996 };
1997
1998 scope.override_name().map_or(false, |scope_name| {
1999 settings
2000 .edit_predictions_disabled_in
2001 .iter()
2002 .any(|s| s == scope_name)
2003 })
2004 }
2005
2006 pub fn set_use_modal_editing(&mut self, to: bool) {
2007 self.use_modal_editing = to;
2008 }
2009
2010 pub fn use_modal_editing(&self) -> bool {
2011 self.use_modal_editing
2012 }
2013
2014 fn selections_did_change(
2015 &mut self,
2016 local: bool,
2017 old_cursor_position: &Anchor,
2018 show_completions: bool,
2019 window: &mut Window,
2020 cx: &mut Context<Self>,
2021 ) {
2022 window.invalidate_character_coordinates();
2023
2024 // Copy selections to primary selection buffer
2025 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2026 if local {
2027 let selections = self.selections.all::<usize>(cx);
2028 let buffer_handle = self.buffer.read(cx).read(cx);
2029
2030 let mut text = String::new();
2031 for (index, selection) in selections.iter().enumerate() {
2032 let text_for_selection = buffer_handle
2033 .text_for_range(selection.start..selection.end)
2034 .collect::<String>();
2035
2036 text.push_str(&text_for_selection);
2037 if index != selections.len() - 1 {
2038 text.push('\n');
2039 }
2040 }
2041
2042 if !text.is_empty() {
2043 cx.write_to_primary(ClipboardItem::new_string(text));
2044 }
2045 }
2046
2047 if self.focus_handle.is_focused(window) && self.leader_peer_id.is_none() {
2048 self.buffer.update(cx, |buffer, cx| {
2049 buffer.set_active_selections(
2050 &self.selections.disjoint_anchors(),
2051 self.selections.line_mode,
2052 self.cursor_shape,
2053 cx,
2054 )
2055 });
2056 }
2057 let display_map = self
2058 .display_map
2059 .update(cx, |display_map, cx| display_map.snapshot(cx));
2060 let buffer = &display_map.buffer_snapshot;
2061 self.add_selections_state = None;
2062 self.select_next_state = None;
2063 self.select_prev_state = None;
2064 self.select_larger_syntax_node_stack.clear();
2065 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2066 self.snippet_stack
2067 .invalidate(&self.selections.disjoint_anchors(), buffer);
2068 self.take_rename(false, window, cx);
2069
2070 let new_cursor_position = self.selections.newest_anchor().head();
2071
2072 self.push_to_nav_history(
2073 *old_cursor_position,
2074 Some(new_cursor_position.to_point(buffer)),
2075 cx,
2076 );
2077
2078 if local {
2079 let new_cursor_position = self.selections.newest_anchor().head();
2080 let mut context_menu = self.context_menu.borrow_mut();
2081 let completion_menu = match context_menu.as_ref() {
2082 Some(CodeContextMenu::Completions(menu)) => Some(menu),
2083 _ => {
2084 *context_menu = None;
2085 None
2086 }
2087 };
2088 if let Some(buffer_id) = new_cursor_position.buffer_id {
2089 if !self.registered_buffers.contains_key(&buffer_id) {
2090 if let Some(lsp_store) = self.lsp_store(cx) {
2091 lsp_store.update(cx, |lsp_store, cx| {
2092 let Some(buffer) = self.buffer.read(cx).buffer(buffer_id) else {
2093 return;
2094 };
2095 self.registered_buffers.insert(
2096 buffer_id,
2097 lsp_store.register_buffer_with_language_servers(&buffer, cx),
2098 );
2099 })
2100 }
2101 }
2102 }
2103
2104 if let Some(completion_menu) = completion_menu {
2105 let cursor_position = new_cursor_position.to_offset(buffer);
2106 let (word_range, kind) =
2107 buffer.surrounding_word(completion_menu.initial_position, true);
2108 if kind == Some(CharKind::Word)
2109 && word_range.to_inclusive().contains(&cursor_position)
2110 {
2111 let mut completion_menu = completion_menu.clone();
2112 drop(context_menu);
2113
2114 let query = Self::completion_query(buffer, cursor_position);
2115 cx.spawn(move |this, mut cx| async move {
2116 completion_menu
2117 .filter(query.as_deref(), cx.background_executor().clone())
2118 .await;
2119
2120 this.update(&mut cx, |this, cx| {
2121 let mut context_menu = this.context_menu.borrow_mut();
2122 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
2123 else {
2124 return;
2125 };
2126
2127 if menu.id > completion_menu.id {
2128 return;
2129 }
2130
2131 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
2132 drop(context_menu);
2133 cx.notify();
2134 })
2135 })
2136 .detach();
2137
2138 if show_completions {
2139 self.show_completions(&ShowCompletions { trigger: None }, window, cx);
2140 }
2141 } else {
2142 drop(context_menu);
2143 self.hide_context_menu(window, cx);
2144 }
2145 } else {
2146 drop(context_menu);
2147 }
2148
2149 hide_hover(self, cx);
2150
2151 if old_cursor_position.to_display_point(&display_map).row()
2152 != new_cursor_position.to_display_point(&display_map).row()
2153 {
2154 self.available_code_actions.take();
2155 }
2156 self.refresh_code_actions(window, cx);
2157 self.refresh_document_highlights(cx);
2158 refresh_matching_bracket_highlights(self, window, cx);
2159 self.update_visible_inline_completion(window, cx);
2160 self.edit_prediction_requires_modifier_in_leading_space = true;
2161 linked_editing_ranges::refresh_linked_ranges(self, window, cx);
2162 if self.git_blame_inline_enabled {
2163 self.start_inline_blame_timer(window, cx);
2164 }
2165 }
2166
2167 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2168 cx.emit(EditorEvent::SelectionsChanged { local });
2169
2170 if self.selections.disjoint_anchors().len() == 1 {
2171 cx.emit(SearchEvent::ActiveMatchChanged)
2172 }
2173 cx.notify();
2174 }
2175
2176 pub fn change_selections<R>(
2177 &mut self,
2178 autoscroll: Option<Autoscroll>,
2179 window: &mut Window,
2180 cx: &mut Context<Self>,
2181 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2182 ) -> R {
2183 self.change_selections_inner(autoscroll, true, window, cx, change)
2184 }
2185
2186 pub fn change_selections_inner<R>(
2187 &mut self,
2188 autoscroll: Option<Autoscroll>,
2189 request_completions: bool,
2190 window: &mut Window,
2191 cx: &mut Context<Self>,
2192 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2193 ) -> R {
2194 let old_cursor_position = self.selections.newest_anchor().head();
2195 self.push_to_selection_history();
2196
2197 let (changed, result) = self.selections.change_with(cx, change);
2198
2199 if changed {
2200 if let Some(autoscroll) = autoscroll {
2201 self.request_autoscroll(autoscroll, cx);
2202 }
2203 self.selections_did_change(true, &old_cursor_position, request_completions, window, cx);
2204
2205 if self.should_open_signature_help_automatically(
2206 &old_cursor_position,
2207 self.signature_help_state.backspace_pressed(),
2208 cx,
2209 ) {
2210 self.show_signature_help(&ShowSignatureHelp, window, cx);
2211 }
2212 self.signature_help_state.set_backspace_pressed(false);
2213 }
2214
2215 result
2216 }
2217
2218 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut Context<Self>)
2219 where
2220 I: IntoIterator<Item = (Range<S>, T)>,
2221 S: ToOffset,
2222 T: Into<Arc<str>>,
2223 {
2224 if self.read_only(cx) {
2225 return;
2226 }
2227
2228 self.buffer
2229 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2230 }
2231
2232 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut Context<Self>)
2233 where
2234 I: IntoIterator<Item = (Range<S>, T)>,
2235 S: ToOffset,
2236 T: Into<Arc<str>>,
2237 {
2238 if self.read_only(cx) {
2239 return;
2240 }
2241
2242 self.buffer.update(cx, |buffer, cx| {
2243 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2244 });
2245 }
2246
2247 pub fn edit_with_block_indent<I, S, T>(
2248 &mut self,
2249 edits: I,
2250 original_indent_columns: Vec<u32>,
2251 cx: &mut Context<Self>,
2252 ) where
2253 I: IntoIterator<Item = (Range<S>, T)>,
2254 S: ToOffset,
2255 T: Into<Arc<str>>,
2256 {
2257 if self.read_only(cx) {
2258 return;
2259 }
2260
2261 self.buffer.update(cx, |buffer, cx| {
2262 buffer.edit(
2263 edits,
2264 Some(AutoindentMode::Block {
2265 original_indent_columns,
2266 }),
2267 cx,
2268 )
2269 });
2270 }
2271
2272 fn select(&mut self, phase: SelectPhase, window: &mut Window, cx: &mut Context<Self>) {
2273 self.hide_context_menu(window, cx);
2274
2275 match phase {
2276 SelectPhase::Begin {
2277 position,
2278 add,
2279 click_count,
2280 } => self.begin_selection(position, add, click_count, window, cx),
2281 SelectPhase::BeginColumnar {
2282 position,
2283 goal_column,
2284 reset,
2285 } => self.begin_columnar_selection(position, goal_column, reset, window, cx),
2286 SelectPhase::Extend {
2287 position,
2288 click_count,
2289 } => self.extend_selection(position, click_count, window, cx),
2290 SelectPhase::Update {
2291 position,
2292 goal_column,
2293 scroll_delta,
2294 } => self.update_selection(position, goal_column, scroll_delta, window, cx),
2295 SelectPhase::End => self.end_selection(window, cx),
2296 }
2297 }
2298
2299 fn extend_selection(
2300 &mut self,
2301 position: DisplayPoint,
2302 click_count: usize,
2303 window: &mut Window,
2304 cx: &mut Context<Self>,
2305 ) {
2306 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2307 let tail = self.selections.newest::<usize>(cx).tail();
2308 self.begin_selection(position, false, click_count, window, cx);
2309
2310 let position = position.to_offset(&display_map, Bias::Left);
2311 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2312
2313 let mut pending_selection = self
2314 .selections
2315 .pending_anchor()
2316 .expect("extend_selection not called with pending selection");
2317 if position >= tail {
2318 pending_selection.start = tail_anchor;
2319 } else {
2320 pending_selection.end = tail_anchor;
2321 pending_selection.reversed = true;
2322 }
2323
2324 let mut pending_mode = self.selections.pending_mode().unwrap();
2325 match &mut pending_mode {
2326 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2327 _ => {}
2328 }
2329
2330 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
2331 s.set_pending(pending_selection, pending_mode)
2332 });
2333 }
2334
2335 fn begin_selection(
2336 &mut self,
2337 position: DisplayPoint,
2338 add: bool,
2339 click_count: usize,
2340 window: &mut Window,
2341 cx: &mut Context<Self>,
2342 ) {
2343 if !self.focus_handle.is_focused(window) {
2344 self.last_focused_descendant = None;
2345 window.focus(&self.focus_handle);
2346 }
2347
2348 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2349 let buffer = &display_map.buffer_snapshot;
2350 let newest_selection = self.selections.newest_anchor().clone();
2351 let position = display_map.clip_point(position, Bias::Left);
2352
2353 let start;
2354 let end;
2355 let mode;
2356 let mut auto_scroll;
2357 match click_count {
2358 1 => {
2359 start = buffer.anchor_before(position.to_point(&display_map));
2360 end = start;
2361 mode = SelectMode::Character;
2362 auto_scroll = true;
2363 }
2364 2 => {
2365 let range = movement::surrounding_word(&display_map, position);
2366 start = buffer.anchor_before(range.start.to_point(&display_map));
2367 end = buffer.anchor_before(range.end.to_point(&display_map));
2368 mode = SelectMode::Word(start..end);
2369 auto_scroll = true;
2370 }
2371 3 => {
2372 let position = display_map
2373 .clip_point(position, Bias::Left)
2374 .to_point(&display_map);
2375 let line_start = display_map.prev_line_boundary(position).0;
2376 let next_line_start = buffer.clip_point(
2377 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2378 Bias::Left,
2379 );
2380 start = buffer.anchor_before(line_start);
2381 end = buffer.anchor_before(next_line_start);
2382 mode = SelectMode::Line(start..end);
2383 auto_scroll = true;
2384 }
2385 _ => {
2386 start = buffer.anchor_before(0);
2387 end = buffer.anchor_before(buffer.len());
2388 mode = SelectMode::All;
2389 auto_scroll = false;
2390 }
2391 }
2392 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2393
2394 let point_to_delete: Option<usize> = {
2395 let selected_points: Vec<Selection<Point>> =
2396 self.selections.disjoint_in_range(start..end, cx);
2397
2398 if !add || click_count > 1 {
2399 None
2400 } else if !selected_points.is_empty() {
2401 Some(selected_points[0].id)
2402 } else {
2403 let clicked_point_already_selected =
2404 self.selections.disjoint.iter().find(|selection| {
2405 selection.start.to_point(buffer) == start.to_point(buffer)
2406 || selection.end.to_point(buffer) == end.to_point(buffer)
2407 });
2408
2409 clicked_point_already_selected.map(|selection| selection.id)
2410 }
2411 };
2412
2413 let selections_count = self.selections.count();
2414
2415 self.change_selections(auto_scroll.then(Autoscroll::newest), window, cx, |s| {
2416 if let Some(point_to_delete) = point_to_delete {
2417 s.delete(point_to_delete);
2418
2419 if selections_count == 1 {
2420 s.set_pending_anchor_range(start..end, mode);
2421 }
2422 } else {
2423 if !add {
2424 s.clear_disjoint();
2425 } else if click_count > 1 {
2426 s.delete(newest_selection.id)
2427 }
2428
2429 s.set_pending_anchor_range(start..end, mode);
2430 }
2431 });
2432 }
2433
2434 fn begin_columnar_selection(
2435 &mut self,
2436 position: DisplayPoint,
2437 goal_column: u32,
2438 reset: bool,
2439 window: &mut Window,
2440 cx: &mut Context<Self>,
2441 ) {
2442 if !self.focus_handle.is_focused(window) {
2443 self.last_focused_descendant = None;
2444 window.focus(&self.focus_handle);
2445 }
2446
2447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2448
2449 if reset {
2450 let pointer_position = display_map
2451 .buffer_snapshot
2452 .anchor_before(position.to_point(&display_map));
2453
2454 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
2455 s.clear_disjoint();
2456 s.set_pending_anchor_range(
2457 pointer_position..pointer_position,
2458 SelectMode::Character,
2459 );
2460 });
2461 }
2462
2463 let tail = self.selections.newest::<Point>(cx).tail();
2464 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2465
2466 if !reset {
2467 self.select_columns(
2468 tail.to_display_point(&display_map),
2469 position,
2470 goal_column,
2471 &display_map,
2472 window,
2473 cx,
2474 );
2475 }
2476 }
2477
2478 fn update_selection(
2479 &mut self,
2480 position: DisplayPoint,
2481 goal_column: u32,
2482 scroll_delta: gpui::Point<f32>,
2483 window: &mut Window,
2484 cx: &mut Context<Self>,
2485 ) {
2486 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2487
2488 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2489 let tail = tail.to_display_point(&display_map);
2490 self.select_columns(tail, position, goal_column, &display_map, window, cx);
2491 } else if let Some(mut pending) = self.selections.pending_anchor() {
2492 let buffer = self.buffer.read(cx).snapshot(cx);
2493 let head;
2494 let tail;
2495 let mode = self.selections.pending_mode().unwrap();
2496 match &mode {
2497 SelectMode::Character => {
2498 head = position.to_point(&display_map);
2499 tail = pending.tail().to_point(&buffer);
2500 }
2501 SelectMode::Word(original_range) => {
2502 let original_display_range = original_range.start.to_display_point(&display_map)
2503 ..original_range.end.to_display_point(&display_map);
2504 let original_buffer_range = original_display_range.start.to_point(&display_map)
2505 ..original_display_range.end.to_point(&display_map);
2506 if movement::is_inside_word(&display_map, position)
2507 || original_display_range.contains(&position)
2508 {
2509 let word_range = movement::surrounding_word(&display_map, position);
2510 if word_range.start < original_display_range.start {
2511 head = word_range.start.to_point(&display_map);
2512 } else {
2513 head = word_range.end.to_point(&display_map);
2514 }
2515 } else {
2516 head = position.to_point(&display_map);
2517 }
2518
2519 if head <= original_buffer_range.start {
2520 tail = original_buffer_range.end;
2521 } else {
2522 tail = original_buffer_range.start;
2523 }
2524 }
2525 SelectMode::Line(original_range) => {
2526 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2527
2528 let position = display_map
2529 .clip_point(position, Bias::Left)
2530 .to_point(&display_map);
2531 let line_start = display_map.prev_line_boundary(position).0;
2532 let next_line_start = buffer.clip_point(
2533 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2534 Bias::Left,
2535 );
2536
2537 if line_start < original_range.start {
2538 head = line_start
2539 } else {
2540 head = next_line_start
2541 }
2542
2543 if head <= original_range.start {
2544 tail = original_range.end;
2545 } else {
2546 tail = original_range.start;
2547 }
2548 }
2549 SelectMode::All => {
2550 return;
2551 }
2552 };
2553
2554 if head < tail {
2555 pending.start = buffer.anchor_before(head);
2556 pending.end = buffer.anchor_before(tail);
2557 pending.reversed = true;
2558 } else {
2559 pending.start = buffer.anchor_before(tail);
2560 pending.end = buffer.anchor_before(head);
2561 pending.reversed = false;
2562 }
2563
2564 self.change_selections(None, window, cx, |s| {
2565 s.set_pending(pending, mode);
2566 });
2567 } else {
2568 log::error!("update_selection dispatched with no pending selection");
2569 return;
2570 }
2571
2572 self.apply_scroll_delta(scroll_delta, window, cx);
2573 cx.notify();
2574 }
2575
2576 fn end_selection(&mut self, window: &mut Window, cx: &mut Context<Self>) {
2577 self.columnar_selection_tail.take();
2578 if self.selections.pending_anchor().is_some() {
2579 let selections = self.selections.all::<usize>(cx);
2580 self.change_selections(None, window, cx, |s| {
2581 s.select(selections);
2582 s.clear_pending();
2583 });
2584 }
2585 }
2586
2587 fn select_columns(
2588 &mut self,
2589 tail: DisplayPoint,
2590 head: DisplayPoint,
2591 goal_column: u32,
2592 display_map: &DisplaySnapshot,
2593 window: &mut Window,
2594 cx: &mut Context<Self>,
2595 ) {
2596 let start_row = cmp::min(tail.row(), head.row());
2597 let end_row = cmp::max(tail.row(), head.row());
2598 let start_column = cmp::min(tail.column(), goal_column);
2599 let end_column = cmp::max(tail.column(), goal_column);
2600 let reversed = start_column < tail.column();
2601
2602 let selection_ranges = (start_row.0..=end_row.0)
2603 .map(DisplayRow)
2604 .filter_map(|row| {
2605 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2606 let start = display_map
2607 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2608 .to_point(display_map);
2609 let end = display_map
2610 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2611 .to_point(display_map);
2612 if reversed {
2613 Some(end..start)
2614 } else {
2615 Some(start..end)
2616 }
2617 } else {
2618 None
2619 }
2620 })
2621 .collect::<Vec<_>>();
2622
2623 self.change_selections(None, window, cx, |s| {
2624 s.select_ranges(selection_ranges);
2625 });
2626 cx.notify();
2627 }
2628
2629 pub fn has_pending_nonempty_selection(&self) -> bool {
2630 let pending_nonempty_selection = match self.selections.pending_anchor() {
2631 Some(Selection { start, end, .. }) => start != end,
2632 None => false,
2633 };
2634
2635 pending_nonempty_selection
2636 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2637 }
2638
2639 pub fn has_pending_selection(&self) -> bool {
2640 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2641 }
2642
2643 pub fn cancel(&mut self, _: &Cancel, window: &mut Window, cx: &mut Context<Self>) {
2644 self.selection_mark_mode = false;
2645
2646 if self.clear_expanded_diff_hunks(cx) {
2647 cx.notify();
2648 return;
2649 }
2650 if self.dismiss_menus_and_popups(true, window, cx) {
2651 return;
2652 }
2653
2654 if self.mode == EditorMode::Full
2655 && self.change_selections(Some(Autoscroll::fit()), window, cx, |s| s.try_cancel())
2656 {
2657 return;
2658 }
2659
2660 cx.propagate();
2661 }
2662
2663 pub fn dismiss_menus_and_popups(
2664 &mut self,
2665 is_user_requested: bool,
2666 window: &mut Window,
2667 cx: &mut Context<Self>,
2668 ) -> bool {
2669 if self.take_rename(false, window, cx).is_some() {
2670 return true;
2671 }
2672
2673 if hide_hover(self, cx) {
2674 return true;
2675 }
2676
2677 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2678 return true;
2679 }
2680
2681 if self.hide_context_menu(window, cx).is_some() {
2682 return true;
2683 }
2684
2685 if self.mouse_context_menu.take().is_some() {
2686 return true;
2687 }
2688
2689 if is_user_requested && self.discard_inline_completion(true, cx) {
2690 return true;
2691 }
2692
2693 if self.snippet_stack.pop().is_some() {
2694 return true;
2695 }
2696
2697 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2698 self.dismiss_diagnostics(cx);
2699 return true;
2700 }
2701
2702 false
2703 }
2704
2705 fn linked_editing_ranges_for(
2706 &self,
2707 selection: Range<text::Anchor>,
2708 cx: &App,
2709 ) -> Option<HashMap<Entity<Buffer>, Vec<Range<text::Anchor>>>> {
2710 if self.linked_edit_ranges.is_empty() {
2711 return None;
2712 }
2713 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2714 selection.end.buffer_id.and_then(|end_buffer_id| {
2715 if selection.start.buffer_id != Some(end_buffer_id) {
2716 return None;
2717 }
2718 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2719 let snapshot = buffer.read(cx).snapshot();
2720 self.linked_edit_ranges
2721 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2722 .map(|ranges| (ranges, snapshot, buffer))
2723 })?;
2724 use text::ToOffset as TO;
2725 // find offset from the start of current range to current cursor position
2726 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2727
2728 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2729 let start_difference = start_offset - start_byte_offset;
2730 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2731 let end_difference = end_offset - start_byte_offset;
2732 // Current range has associated linked ranges.
2733 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2734 for range in linked_ranges.iter() {
2735 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2736 let end_offset = start_offset + end_difference;
2737 let start_offset = start_offset + start_difference;
2738 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2739 continue;
2740 }
2741 if self.selections.disjoint_anchor_ranges().any(|s| {
2742 if s.start.buffer_id != selection.start.buffer_id
2743 || s.end.buffer_id != selection.end.buffer_id
2744 {
2745 return false;
2746 }
2747 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2748 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2749 }) {
2750 continue;
2751 }
2752 let start = buffer_snapshot.anchor_after(start_offset);
2753 let end = buffer_snapshot.anchor_after(end_offset);
2754 linked_edits
2755 .entry(buffer.clone())
2756 .or_default()
2757 .push(start..end);
2758 }
2759 Some(linked_edits)
2760 }
2761
2762 pub fn handle_input(&mut self, text: &str, window: &mut Window, cx: &mut Context<Self>) {
2763 let text: Arc<str> = text.into();
2764
2765 if self.read_only(cx) {
2766 return;
2767 }
2768
2769 let selections = self.selections.all_adjusted(cx);
2770 let mut bracket_inserted = false;
2771 let mut edits = Vec::new();
2772 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2773 let mut new_selections = Vec::with_capacity(selections.len());
2774 let mut new_autoclose_regions = Vec::new();
2775 let snapshot = self.buffer.read(cx).read(cx);
2776
2777 for (selection, autoclose_region) in
2778 self.selections_with_autoclose_regions(selections, &snapshot)
2779 {
2780 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2781 // Determine if the inserted text matches the opening or closing
2782 // bracket of any of this language's bracket pairs.
2783 let mut bracket_pair = None;
2784 let mut is_bracket_pair_start = false;
2785 let mut is_bracket_pair_end = false;
2786 if !text.is_empty() {
2787 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2788 // and they are removing the character that triggered IME popup.
2789 for (pair, enabled) in scope.brackets() {
2790 if !pair.close && !pair.surround {
2791 continue;
2792 }
2793
2794 if enabled && pair.start.ends_with(text.as_ref()) {
2795 let prefix_len = pair.start.len() - text.len();
2796 let preceding_text_matches_prefix = prefix_len == 0
2797 || (selection.start.column >= (prefix_len as u32)
2798 && snapshot.contains_str_at(
2799 Point::new(
2800 selection.start.row,
2801 selection.start.column - (prefix_len as u32),
2802 ),
2803 &pair.start[..prefix_len],
2804 ));
2805 if preceding_text_matches_prefix {
2806 bracket_pair = Some(pair.clone());
2807 is_bracket_pair_start = true;
2808 break;
2809 }
2810 }
2811 if pair.end.as_str() == text.as_ref() {
2812 bracket_pair = Some(pair.clone());
2813 is_bracket_pair_end = true;
2814 break;
2815 }
2816 }
2817 }
2818
2819 if let Some(bracket_pair) = bracket_pair {
2820 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2821 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2822 let auto_surround =
2823 self.use_auto_surround && snapshot_settings.use_auto_surround;
2824 if selection.is_empty() {
2825 if is_bracket_pair_start {
2826 // If the inserted text is a suffix of an opening bracket and the
2827 // selection is preceded by the rest of the opening bracket, then
2828 // insert the closing bracket.
2829 let following_text_allows_autoclose = snapshot
2830 .chars_at(selection.start)
2831 .next()
2832 .map_or(true, |c| scope.should_autoclose_before(c));
2833
2834 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2835 && bracket_pair.start.len() == 1
2836 {
2837 let target = bracket_pair.start.chars().next().unwrap();
2838 let current_line_count = snapshot
2839 .reversed_chars_at(selection.start)
2840 .take_while(|&c| c != '\n')
2841 .filter(|&c| c == target)
2842 .count();
2843 current_line_count % 2 == 1
2844 } else {
2845 false
2846 };
2847
2848 if autoclose
2849 && bracket_pair.close
2850 && following_text_allows_autoclose
2851 && !is_closing_quote
2852 {
2853 let anchor = snapshot.anchor_before(selection.end);
2854 new_selections.push((selection.map(|_| anchor), text.len()));
2855 new_autoclose_regions.push((
2856 anchor,
2857 text.len(),
2858 selection.id,
2859 bracket_pair.clone(),
2860 ));
2861 edits.push((
2862 selection.range(),
2863 format!("{}{}", text, bracket_pair.end).into(),
2864 ));
2865 bracket_inserted = true;
2866 continue;
2867 }
2868 }
2869
2870 if let Some(region) = autoclose_region {
2871 // If the selection is followed by an auto-inserted closing bracket,
2872 // then don't insert that closing bracket again; just move the selection
2873 // past the closing bracket.
2874 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2875 && text.as_ref() == region.pair.end.as_str();
2876 if should_skip {
2877 let anchor = snapshot.anchor_after(selection.end);
2878 new_selections
2879 .push((selection.map(|_| anchor), region.pair.end.len()));
2880 continue;
2881 }
2882 }
2883
2884 let always_treat_brackets_as_autoclosed = snapshot
2885 .settings_at(selection.start, cx)
2886 .always_treat_brackets_as_autoclosed;
2887 if always_treat_brackets_as_autoclosed
2888 && is_bracket_pair_end
2889 && snapshot.contains_str_at(selection.end, text.as_ref())
2890 {
2891 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2892 // and the inserted text is a closing bracket and the selection is followed
2893 // by the closing bracket then move the selection past the closing bracket.
2894 let anchor = snapshot.anchor_after(selection.end);
2895 new_selections.push((selection.map(|_| anchor), text.len()));
2896 continue;
2897 }
2898 }
2899 // If an opening bracket is 1 character long and is typed while
2900 // text is selected, then surround that text with the bracket pair.
2901 else if auto_surround
2902 && bracket_pair.surround
2903 && is_bracket_pair_start
2904 && bracket_pair.start.chars().count() == 1
2905 {
2906 edits.push((selection.start..selection.start, text.clone()));
2907 edits.push((
2908 selection.end..selection.end,
2909 bracket_pair.end.as_str().into(),
2910 ));
2911 bracket_inserted = true;
2912 new_selections.push((
2913 Selection {
2914 id: selection.id,
2915 start: snapshot.anchor_after(selection.start),
2916 end: snapshot.anchor_before(selection.end),
2917 reversed: selection.reversed,
2918 goal: selection.goal,
2919 },
2920 0,
2921 ));
2922 continue;
2923 }
2924 }
2925 }
2926
2927 if self.auto_replace_emoji_shortcode
2928 && selection.is_empty()
2929 && text.as_ref().ends_with(':')
2930 {
2931 if let Some(possible_emoji_short_code) =
2932 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2933 {
2934 if !possible_emoji_short_code.is_empty() {
2935 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2936 let emoji_shortcode_start = Point::new(
2937 selection.start.row,
2938 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2939 );
2940
2941 // Remove shortcode from buffer
2942 edits.push((
2943 emoji_shortcode_start..selection.start,
2944 "".to_string().into(),
2945 ));
2946 new_selections.push((
2947 Selection {
2948 id: selection.id,
2949 start: snapshot.anchor_after(emoji_shortcode_start),
2950 end: snapshot.anchor_before(selection.start),
2951 reversed: selection.reversed,
2952 goal: selection.goal,
2953 },
2954 0,
2955 ));
2956
2957 // Insert emoji
2958 let selection_start_anchor = snapshot.anchor_after(selection.start);
2959 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2960 edits.push((selection.start..selection.end, emoji.to_string().into()));
2961
2962 continue;
2963 }
2964 }
2965 }
2966 }
2967
2968 // If not handling any auto-close operation, then just replace the selected
2969 // text with the given input and move the selection to the end of the
2970 // newly inserted text.
2971 let anchor = snapshot.anchor_after(selection.end);
2972 if !self.linked_edit_ranges.is_empty() {
2973 let start_anchor = snapshot.anchor_before(selection.start);
2974
2975 let is_word_char = text.chars().next().map_or(true, |char| {
2976 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2977 classifier.is_word(char)
2978 });
2979
2980 if is_word_char {
2981 if let Some(ranges) = self
2982 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2983 {
2984 for (buffer, edits) in ranges {
2985 linked_edits
2986 .entry(buffer.clone())
2987 .or_default()
2988 .extend(edits.into_iter().map(|range| (range, text.clone())));
2989 }
2990 }
2991 }
2992 }
2993
2994 new_selections.push((selection.map(|_| anchor), 0));
2995 edits.push((selection.start..selection.end, text.clone()));
2996 }
2997
2998 drop(snapshot);
2999
3000 self.transact(window, cx, |this, window, cx| {
3001 this.buffer.update(cx, |buffer, cx| {
3002 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3003 });
3004 for (buffer, edits) in linked_edits {
3005 buffer.update(cx, |buffer, cx| {
3006 let snapshot = buffer.snapshot();
3007 let edits = edits
3008 .into_iter()
3009 .map(|(range, text)| {
3010 use text::ToPoint as TP;
3011 let end_point = TP::to_point(&range.end, &snapshot);
3012 let start_point = TP::to_point(&range.start, &snapshot);
3013 (start_point..end_point, text)
3014 })
3015 .sorted_by_key(|(range, _)| range.start)
3016 .collect::<Vec<_>>();
3017 buffer.edit(edits, None, cx);
3018 })
3019 }
3020 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3021 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3022 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3023 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3024 .zip(new_selection_deltas)
3025 .map(|(selection, delta)| Selection {
3026 id: selection.id,
3027 start: selection.start + delta,
3028 end: selection.end + delta,
3029 reversed: selection.reversed,
3030 goal: SelectionGoal::None,
3031 })
3032 .collect::<Vec<_>>();
3033
3034 let mut i = 0;
3035 for (position, delta, selection_id, pair) in new_autoclose_regions {
3036 let position = position.to_offset(&map.buffer_snapshot) + delta;
3037 let start = map.buffer_snapshot.anchor_before(position);
3038 let end = map.buffer_snapshot.anchor_after(position);
3039 while let Some(existing_state) = this.autoclose_regions.get(i) {
3040 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3041 Ordering::Less => i += 1,
3042 Ordering::Greater => break,
3043 Ordering::Equal => {
3044 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3045 Ordering::Less => i += 1,
3046 Ordering::Equal => break,
3047 Ordering::Greater => break,
3048 }
3049 }
3050 }
3051 }
3052 this.autoclose_regions.insert(
3053 i,
3054 AutocloseRegion {
3055 selection_id,
3056 range: start..end,
3057 pair,
3058 },
3059 );
3060 }
3061
3062 let had_active_inline_completion = this.has_active_inline_completion();
3063 this.change_selections_inner(Some(Autoscroll::fit()), false, window, cx, |s| {
3064 s.select(new_selections)
3065 });
3066
3067 if !bracket_inserted {
3068 if let Some(on_type_format_task) =
3069 this.trigger_on_type_formatting(text.to_string(), window, cx)
3070 {
3071 on_type_format_task.detach_and_log_err(cx);
3072 }
3073 }
3074
3075 let editor_settings = EditorSettings::get_global(cx);
3076 if bracket_inserted
3077 && (editor_settings.auto_signature_help
3078 || editor_settings.show_signature_help_after_edits)
3079 {
3080 this.show_signature_help(&ShowSignatureHelp, window, cx);
3081 }
3082
3083 let trigger_in_words =
3084 this.show_edit_predictions_in_menu() || !had_active_inline_completion;
3085 this.trigger_completion_on_input(&text, trigger_in_words, window, cx);
3086 linked_editing_ranges::refresh_linked_ranges(this, window, cx);
3087 this.refresh_inline_completion(true, false, window, cx);
3088 });
3089 }
3090
3091 fn find_possible_emoji_shortcode_at_position(
3092 snapshot: &MultiBufferSnapshot,
3093 position: Point,
3094 ) -> Option<String> {
3095 let mut chars = Vec::new();
3096 let mut found_colon = false;
3097 for char in snapshot.reversed_chars_at(position).take(100) {
3098 // Found a possible emoji shortcode in the middle of the buffer
3099 if found_colon {
3100 if char.is_whitespace() {
3101 chars.reverse();
3102 return Some(chars.iter().collect());
3103 }
3104 // If the previous character is not a whitespace, we are in the middle of a word
3105 // and we only want to complete the shortcode if the word is made up of other emojis
3106 let mut containing_word = String::new();
3107 for ch in snapshot
3108 .reversed_chars_at(position)
3109 .skip(chars.len() + 1)
3110 .take(100)
3111 {
3112 if ch.is_whitespace() {
3113 break;
3114 }
3115 containing_word.push(ch);
3116 }
3117 let containing_word = containing_word.chars().rev().collect::<String>();
3118 if util::word_consists_of_emojis(containing_word.as_str()) {
3119 chars.reverse();
3120 return Some(chars.iter().collect());
3121 }
3122 }
3123
3124 if char.is_whitespace() || !char.is_ascii() {
3125 return None;
3126 }
3127 if char == ':' {
3128 found_colon = true;
3129 } else {
3130 chars.push(char);
3131 }
3132 }
3133 // Found a possible emoji shortcode at the beginning of the buffer
3134 chars.reverse();
3135 Some(chars.iter().collect())
3136 }
3137
3138 pub fn newline(&mut self, _: &Newline, window: &mut Window, cx: &mut Context<Self>) {
3139 self.transact(window, cx, |this, window, cx| {
3140 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3141 let selections = this.selections.all::<usize>(cx);
3142 let multi_buffer = this.buffer.read(cx);
3143 let buffer = multi_buffer.snapshot(cx);
3144 selections
3145 .iter()
3146 .map(|selection| {
3147 let start_point = selection.start.to_point(&buffer);
3148 let mut indent =
3149 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3150 indent.len = cmp::min(indent.len, start_point.column);
3151 let start = selection.start;
3152 let end = selection.end;
3153 let selection_is_empty = start == end;
3154 let language_scope = buffer.language_scope_at(start);
3155 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3156 &language_scope
3157 {
3158 let leading_whitespace_len = buffer
3159 .reversed_chars_at(start)
3160 .take_while(|c| c.is_whitespace() && *c != '\n')
3161 .map(|c| c.len_utf8())
3162 .sum::<usize>();
3163
3164 let trailing_whitespace_len = buffer
3165 .chars_at(end)
3166 .take_while(|c| c.is_whitespace() && *c != '\n')
3167 .map(|c| c.len_utf8())
3168 .sum::<usize>();
3169
3170 let insert_extra_newline =
3171 language.brackets().any(|(pair, enabled)| {
3172 let pair_start = pair.start.trim_end();
3173 let pair_end = pair.end.trim_start();
3174
3175 enabled
3176 && pair.newline
3177 && buffer.contains_str_at(
3178 end + trailing_whitespace_len,
3179 pair_end,
3180 )
3181 && buffer.contains_str_at(
3182 (start - leading_whitespace_len)
3183 .saturating_sub(pair_start.len()),
3184 pair_start,
3185 )
3186 });
3187
3188 // Comment extension on newline is allowed only for cursor selections
3189 let comment_delimiter = maybe!({
3190 if !selection_is_empty {
3191 return None;
3192 }
3193
3194 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3195 return None;
3196 }
3197
3198 let delimiters = language.line_comment_prefixes();
3199 let max_len_of_delimiter =
3200 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3201 let (snapshot, range) =
3202 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3203
3204 let mut index_of_first_non_whitespace = 0;
3205 let comment_candidate = snapshot
3206 .chars_for_range(range)
3207 .skip_while(|c| {
3208 let should_skip = c.is_whitespace();
3209 if should_skip {
3210 index_of_first_non_whitespace += 1;
3211 }
3212 should_skip
3213 })
3214 .take(max_len_of_delimiter)
3215 .collect::<String>();
3216 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3217 comment_candidate.starts_with(comment_prefix.as_ref())
3218 })?;
3219 let cursor_is_placed_after_comment_marker =
3220 index_of_first_non_whitespace + comment_prefix.len()
3221 <= start_point.column as usize;
3222 if cursor_is_placed_after_comment_marker {
3223 Some(comment_prefix.clone())
3224 } else {
3225 None
3226 }
3227 });
3228 (comment_delimiter, insert_extra_newline)
3229 } else {
3230 (None, false)
3231 };
3232
3233 let capacity_for_delimiter = comment_delimiter
3234 .as_deref()
3235 .map(str::len)
3236 .unwrap_or_default();
3237 let mut new_text =
3238 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3239 new_text.push('\n');
3240 new_text.extend(indent.chars());
3241 if let Some(delimiter) = &comment_delimiter {
3242 new_text.push_str(delimiter);
3243 }
3244 if insert_extra_newline {
3245 new_text = new_text.repeat(2);
3246 }
3247
3248 let anchor = buffer.anchor_after(end);
3249 let new_selection = selection.map(|_| anchor);
3250 (
3251 (start..end, new_text),
3252 (insert_extra_newline, new_selection),
3253 )
3254 })
3255 .unzip()
3256 };
3257
3258 this.edit_with_autoindent(edits, cx);
3259 let buffer = this.buffer.read(cx).snapshot(cx);
3260 let new_selections = selection_fixup_info
3261 .into_iter()
3262 .map(|(extra_newline_inserted, new_selection)| {
3263 let mut cursor = new_selection.end.to_point(&buffer);
3264 if extra_newline_inserted {
3265 cursor.row -= 1;
3266 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3267 }
3268 new_selection.map(|_| cursor)
3269 })
3270 .collect();
3271
3272 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3273 s.select(new_selections)
3274 });
3275 this.refresh_inline_completion(true, false, window, cx);
3276 });
3277 }
3278
3279 pub fn newline_above(&mut self, _: &NewlineAbove, window: &mut Window, cx: &mut Context<Self>) {
3280 let buffer = self.buffer.read(cx);
3281 let snapshot = buffer.snapshot(cx);
3282
3283 let mut edits = Vec::new();
3284 let mut rows = Vec::new();
3285
3286 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3287 let cursor = selection.head();
3288 let row = cursor.row;
3289
3290 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3291
3292 let newline = "\n".to_string();
3293 edits.push((start_of_line..start_of_line, newline));
3294
3295 rows.push(row + rows_inserted as u32);
3296 }
3297
3298 self.transact(window, cx, |editor, window, cx| {
3299 editor.edit(edits, cx);
3300
3301 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3302 let mut index = 0;
3303 s.move_cursors_with(|map, _, _| {
3304 let row = rows[index];
3305 index += 1;
3306
3307 let point = Point::new(row, 0);
3308 let boundary = map.next_line_boundary(point).1;
3309 let clipped = map.clip_point(boundary, Bias::Left);
3310
3311 (clipped, SelectionGoal::None)
3312 });
3313 });
3314
3315 let mut indent_edits = Vec::new();
3316 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3317 for row in rows {
3318 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3319 for (row, indent) in indents {
3320 if indent.len == 0 {
3321 continue;
3322 }
3323
3324 let text = match indent.kind {
3325 IndentKind::Space => " ".repeat(indent.len as usize),
3326 IndentKind::Tab => "\t".repeat(indent.len as usize),
3327 };
3328 let point = Point::new(row.0, 0);
3329 indent_edits.push((point..point, text));
3330 }
3331 }
3332 editor.edit(indent_edits, cx);
3333 });
3334 }
3335
3336 pub fn newline_below(&mut self, _: &NewlineBelow, window: &mut Window, cx: &mut Context<Self>) {
3337 let buffer = self.buffer.read(cx);
3338 let snapshot = buffer.snapshot(cx);
3339
3340 let mut edits = Vec::new();
3341 let mut rows = Vec::new();
3342 let mut rows_inserted = 0;
3343
3344 for selection in self.selections.all_adjusted(cx) {
3345 let cursor = selection.head();
3346 let row = cursor.row;
3347
3348 let point = Point::new(row + 1, 0);
3349 let start_of_line = snapshot.clip_point(point, Bias::Left);
3350
3351 let newline = "\n".to_string();
3352 edits.push((start_of_line..start_of_line, newline));
3353
3354 rows_inserted += 1;
3355 rows.push(row + rows_inserted);
3356 }
3357
3358 self.transact(window, cx, |editor, window, cx| {
3359 editor.edit(edits, cx);
3360
3361 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3362 let mut index = 0;
3363 s.move_cursors_with(|map, _, _| {
3364 let row = rows[index];
3365 index += 1;
3366
3367 let point = Point::new(row, 0);
3368 let boundary = map.next_line_boundary(point).1;
3369 let clipped = map.clip_point(boundary, Bias::Left);
3370
3371 (clipped, SelectionGoal::None)
3372 });
3373 });
3374
3375 let mut indent_edits = Vec::new();
3376 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3377 for row in rows {
3378 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3379 for (row, indent) in indents {
3380 if indent.len == 0 {
3381 continue;
3382 }
3383
3384 let text = match indent.kind {
3385 IndentKind::Space => " ".repeat(indent.len as usize),
3386 IndentKind::Tab => "\t".repeat(indent.len as usize),
3387 };
3388 let point = Point::new(row.0, 0);
3389 indent_edits.push((point..point, text));
3390 }
3391 }
3392 editor.edit(indent_edits, cx);
3393 });
3394 }
3395
3396 pub fn insert(&mut self, text: &str, window: &mut Window, cx: &mut Context<Self>) {
3397 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3398 original_indent_columns: Vec::new(),
3399 });
3400 self.insert_with_autoindent_mode(text, autoindent, window, cx);
3401 }
3402
3403 fn insert_with_autoindent_mode(
3404 &mut self,
3405 text: &str,
3406 autoindent_mode: Option<AutoindentMode>,
3407 window: &mut Window,
3408 cx: &mut Context<Self>,
3409 ) {
3410 if self.read_only(cx) {
3411 return;
3412 }
3413
3414 let text: Arc<str> = text.into();
3415 self.transact(window, cx, |this, window, cx| {
3416 let old_selections = this.selections.all_adjusted(cx);
3417 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3418 let anchors = {
3419 let snapshot = buffer.read(cx);
3420 old_selections
3421 .iter()
3422 .map(|s| {
3423 let anchor = snapshot.anchor_after(s.head());
3424 s.map(|_| anchor)
3425 })
3426 .collect::<Vec<_>>()
3427 };
3428 buffer.edit(
3429 old_selections
3430 .iter()
3431 .map(|s| (s.start..s.end, text.clone())),
3432 autoindent_mode,
3433 cx,
3434 );
3435 anchors
3436 });
3437
3438 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3439 s.select_anchors(selection_anchors);
3440 });
3441
3442 cx.notify();
3443 });
3444 }
3445
3446 fn trigger_completion_on_input(
3447 &mut self,
3448 text: &str,
3449 trigger_in_words: bool,
3450 window: &mut Window,
3451 cx: &mut Context<Self>,
3452 ) {
3453 if self.is_completion_trigger(text, trigger_in_words, cx) {
3454 self.show_completions(
3455 &ShowCompletions {
3456 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3457 },
3458 window,
3459 cx,
3460 );
3461 } else {
3462 self.hide_context_menu(window, cx);
3463 }
3464 }
3465
3466 fn is_completion_trigger(
3467 &self,
3468 text: &str,
3469 trigger_in_words: bool,
3470 cx: &mut Context<Self>,
3471 ) -> bool {
3472 let position = self.selections.newest_anchor().head();
3473 let multibuffer = self.buffer.read(cx);
3474 let Some(buffer) = position
3475 .buffer_id
3476 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3477 else {
3478 return false;
3479 };
3480
3481 if let Some(completion_provider) = &self.completion_provider {
3482 completion_provider.is_completion_trigger(
3483 &buffer,
3484 position.text_anchor,
3485 text,
3486 trigger_in_words,
3487 cx,
3488 )
3489 } else {
3490 false
3491 }
3492 }
3493
3494 /// If any empty selections is touching the start of its innermost containing autoclose
3495 /// region, expand it to select the brackets.
3496 fn select_autoclose_pair(&mut self, window: &mut Window, cx: &mut Context<Self>) {
3497 let selections = self.selections.all::<usize>(cx);
3498 let buffer = self.buffer.read(cx).read(cx);
3499 let new_selections = self
3500 .selections_with_autoclose_regions(selections, &buffer)
3501 .map(|(mut selection, region)| {
3502 if !selection.is_empty() {
3503 return selection;
3504 }
3505
3506 if let Some(region) = region {
3507 let mut range = region.range.to_offset(&buffer);
3508 if selection.start == range.start && range.start >= region.pair.start.len() {
3509 range.start -= region.pair.start.len();
3510 if buffer.contains_str_at(range.start, ®ion.pair.start)
3511 && buffer.contains_str_at(range.end, ®ion.pair.end)
3512 {
3513 range.end += region.pair.end.len();
3514 selection.start = range.start;
3515 selection.end = range.end;
3516
3517 return selection;
3518 }
3519 }
3520 }
3521
3522 let always_treat_brackets_as_autoclosed = buffer
3523 .settings_at(selection.start, cx)
3524 .always_treat_brackets_as_autoclosed;
3525
3526 if !always_treat_brackets_as_autoclosed {
3527 return selection;
3528 }
3529
3530 if let Some(scope) = buffer.language_scope_at(selection.start) {
3531 for (pair, enabled) in scope.brackets() {
3532 if !enabled || !pair.close {
3533 continue;
3534 }
3535
3536 if buffer.contains_str_at(selection.start, &pair.end) {
3537 let pair_start_len = pair.start.len();
3538 if buffer.contains_str_at(
3539 selection.start.saturating_sub(pair_start_len),
3540 &pair.start,
3541 ) {
3542 selection.start -= pair_start_len;
3543 selection.end += pair.end.len();
3544
3545 return selection;
3546 }
3547 }
3548 }
3549 }
3550
3551 selection
3552 })
3553 .collect();
3554
3555 drop(buffer);
3556 self.change_selections(None, window, cx, |selections| {
3557 selections.select(new_selections)
3558 });
3559 }
3560
3561 /// Iterate the given selections, and for each one, find the smallest surrounding
3562 /// autoclose region. This uses the ordering of the selections and the autoclose
3563 /// regions to avoid repeated comparisons.
3564 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3565 &'a self,
3566 selections: impl IntoIterator<Item = Selection<D>>,
3567 buffer: &'a MultiBufferSnapshot,
3568 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3569 let mut i = 0;
3570 let mut regions = self.autoclose_regions.as_slice();
3571 selections.into_iter().map(move |selection| {
3572 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3573
3574 let mut enclosing = None;
3575 while let Some(pair_state) = regions.get(i) {
3576 if pair_state.range.end.to_offset(buffer) < range.start {
3577 regions = ®ions[i + 1..];
3578 i = 0;
3579 } else if pair_state.range.start.to_offset(buffer) > range.end {
3580 break;
3581 } else {
3582 if pair_state.selection_id == selection.id {
3583 enclosing = Some(pair_state);
3584 }
3585 i += 1;
3586 }
3587 }
3588
3589 (selection, enclosing)
3590 })
3591 }
3592
3593 /// Remove any autoclose regions that no longer contain their selection.
3594 fn invalidate_autoclose_regions(
3595 &mut self,
3596 mut selections: &[Selection<Anchor>],
3597 buffer: &MultiBufferSnapshot,
3598 ) {
3599 self.autoclose_regions.retain(|state| {
3600 let mut i = 0;
3601 while let Some(selection) = selections.get(i) {
3602 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3603 selections = &selections[1..];
3604 continue;
3605 }
3606 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3607 break;
3608 }
3609 if selection.id == state.selection_id {
3610 return true;
3611 } else {
3612 i += 1;
3613 }
3614 }
3615 false
3616 });
3617 }
3618
3619 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3620 let offset = position.to_offset(buffer);
3621 let (word_range, kind) = buffer.surrounding_word(offset, true);
3622 if offset > word_range.start && kind == Some(CharKind::Word) {
3623 Some(
3624 buffer
3625 .text_for_range(word_range.start..offset)
3626 .collect::<String>(),
3627 )
3628 } else {
3629 None
3630 }
3631 }
3632
3633 pub fn toggle_inlay_hints(
3634 &mut self,
3635 _: &ToggleInlayHints,
3636 _: &mut Window,
3637 cx: &mut Context<Self>,
3638 ) {
3639 self.refresh_inlay_hints(
3640 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3641 cx,
3642 );
3643 }
3644
3645 pub fn inlay_hints_enabled(&self) -> bool {
3646 self.inlay_hint_cache.enabled
3647 }
3648
3649 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut Context<Self>) {
3650 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3651 return;
3652 }
3653
3654 let reason_description = reason.description();
3655 let ignore_debounce = matches!(
3656 reason,
3657 InlayHintRefreshReason::SettingsChange(_)
3658 | InlayHintRefreshReason::Toggle(_)
3659 | InlayHintRefreshReason::ExcerptsRemoved(_)
3660 );
3661 let (invalidate_cache, required_languages) = match reason {
3662 InlayHintRefreshReason::Toggle(enabled) => {
3663 self.inlay_hint_cache.enabled = enabled;
3664 if enabled {
3665 (InvalidationStrategy::RefreshRequested, None)
3666 } else {
3667 self.inlay_hint_cache.clear();
3668 self.splice_inlays(
3669 &self
3670 .visible_inlay_hints(cx)
3671 .iter()
3672 .map(|inlay| inlay.id)
3673 .collect::<Vec<InlayId>>(),
3674 Vec::new(),
3675 cx,
3676 );
3677 return;
3678 }
3679 }
3680 InlayHintRefreshReason::SettingsChange(new_settings) => {
3681 match self.inlay_hint_cache.update_settings(
3682 &self.buffer,
3683 new_settings,
3684 self.visible_inlay_hints(cx),
3685 cx,
3686 ) {
3687 ControlFlow::Break(Some(InlaySplice {
3688 to_remove,
3689 to_insert,
3690 })) => {
3691 self.splice_inlays(&to_remove, to_insert, cx);
3692 return;
3693 }
3694 ControlFlow::Break(None) => return,
3695 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3696 }
3697 }
3698 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3699 if let Some(InlaySplice {
3700 to_remove,
3701 to_insert,
3702 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3703 {
3704 self.splice_inlays(&to_remove, to_insert, cx);
3705 }
3706 return;
3707 }
3708 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3709 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3710 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3711 }
3712 InlayHintRefreshReason::RefreshRequested => {
3713 (InvalidationStrategy::RefreshRequested, None)
3714 }
3715 };
3716
3717 if let Some(InlaySplice {
3718 to_remove,
3719 to_insert,
3720 }) = self.inlay_hint_cache.spawn_hint_refresh(
3721 reason_description,
3722 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3723 invalidate_cache,
3724 ignore_debounce,
3725 cx,
3726 ) {
3727 self.splice_inlays(&to_remove, to_insert, cx);
3728 }
3729 }
3730
3731 fn visible_inlay_hints(&self, cx: &Context<Editor>) -> Vec<Inlay> {
3732 self.display_map
3733 .read(cx)
3734 .current_inlays()
3735 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3736 .cloned()
3737 .collect()
3738 }
3739
3740 pub fn excerpts_for_inlay_hints_query(
3741 &self,
3742 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3743 cx: &mut Context<Editor>,
3744 ) -> HashMap<ExcerptId, (Entity<Buffer>, clock::Global, Range<usize>)> {
3745 let Some(project) = self.project.as_ref() else {
3746 return HashMap::default();
3747 };
3748 let project = project.read(cx);
3749 let multi_buffer = self.buffer().read(cx);
3750 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3751 let multi_buffer_visible_start = self
3752 .scroll_manager
3753 .anchor()
3754 .anchor
3755 .to_point(&multi_buffer_snapshot);
3756 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3757 multi_buffer_visible_start
3758 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3759 Bias::Left,
3760 );
3761 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3762 multi_buffer_snapshot
3763 .range_to_buffer_ranges(multi_buffer_visible_range)
3764 .into_iter()
3765 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3766 .filter_map(|(buffer, excerpt_visible_range, excerpt_id)| {
3767 let buffer_file = project::File::from_dyn(buffer.file())?;
3768 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3769 let worktree_entry = buffer_worktree
3770 .read(cx)
3771 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3772 if worktree_entry.is_ignored {
3773 return None;
3774 }
3775
3776 let language = buffer.language()?;
3777 if let Some(restrict_to_languages) = restrict_to_languages {
3778 if !restrict_to_languages.contains(language) {
3779 return None;
3780 }
3781 }
3782 Some((
3783 excerpt_id,
3784 (
3785 multi_buffer.buffer(buffer.remote_id()).unwrap(),
3786 buffer.version().clone(),
3787 excerpt_visible_range,
3788 ),
3789 ))
3790 })
3791 .collect()
3792 }
3793
3794 pub fn text_layout_details(&self, window: &mut Window) -> TextLayoutDetails {
3795 TextLayoutDetails {
3796 text_system: window.text_system().clone(),
3797 editor_style: self.style.clone().unwrap(),
3798 rem_size: window.rem_size(),
3799 scroll_anchor: self.scroll_manager.anchor(),
3800 visible_rows: self.visible_line_count(),
3801 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3802 }
3803 }
3804
3805 pub fn splice_inlays(
3806 &self,
3807 to_remove: &[InlayId],
3808 to_insert: Vec<Inlay>,
3809 cx: &mut Context<Self>,
3810 ) {
3811 self.display_map.update(cx, |display_map, cx| {
3812 display_map.splice_inlays(to_remove, to_insert, cx)
3813 });
3814 cx.notify();
3815 }
3816
3817 fn trigger_on_type_formatting(
3818 &self,
3819 input: String,
3820 window: &mut Window,
3821 cx: &mut Context<Self>,
3822 ) -> Option<Task<Result<()>>> {
3823 if input.len() != 1 {
3824 return None;
3825 }
3826
3827 let project = self.project.as_ref()?;
3828 let position = self.selections.newest_anchor().head();
3829 let (buffer, buffer_position) = self
3830 .buffer
3831 .read(cx)
3832 .text_anchor_for_position(position, cx)?;
3833
3834 let settings = language_settings::language_settings(
3835 buffer
3836 .read(cx)
3837 .language_at(buffer_position)
3838 .map(|l| l.name()),
3839 buffer.read(cx).file(),
3840 cx,
3841 );
3842 if !settings.use_on_type_format {
3843 return None;
3844 }
3845
3846 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3847 // hence we do LSP request & edit on host side only — add formats to host's history.
3848 let push_to_lsp_host_history = true;
3849 // If this is not the host, append its history with new edits.
3850 let push_to_client_history = project.read(cx).is_via_collab();
3851
3852 let on_type_formatting = project.update(cx, |project, cx| {
3853 project.on_type_format(
3854 buffer.clone(),
3855 buffer_position,
3856 input,
3857 push_to_lsp_host_history,
3858 cx,
3859 )
3860 });
3861 Some(cx.spawn_in(window, |editor, mut cx| async move {
3862 if let Some(transaction) = on_type_formatting.await? {
3863 if push_to_client_history {
3864 buffer
3865 .update(&mut cx, |buffer, _| {
3866 buffer.push_transaction(transaction, Instant::now());
3867 })
3868 .ok();
3869 }
3870 editor.update(&mut cx, |editor, cx| {
3871 editor.refresh_document_highlights(cx);
3872 })?;
3873 }
3874 Ok(())
3875 }))
3876 }
3877
3878 pub fn show_completions(
3879 &mut self,
3880 options: &ShowCompletions,
3881 window: &mut Window,
3882 cx: &mut Context<Self>,
3883 ) {
3884 if self.pending_rename.is_some() {
3885 return;
3886 }
3887
3888 let Some(provider) = self.completion_provider.as_ref() else {
3889 return;
3890 };
3891
3892 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3893 return;
3894 }
3895
3896 let position = self.selections.newest_anchor().head();
3897 if position.diff_base_anchor.is_some() {
3898 return;
3899 }
3900 let (buffer, buffer_position) =
3901 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3902 output
3903 } else {
3904 return;
3905 };
3906 let show_completion_documentation = buffer
3907 .read(cx)
3908 .snapshot()
3909 .settings_at(buffer_position, cx)
3910 .show_completion_documentation;
3911
3912 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3913
3914 let trigger_kind = match &options.trigger {
3915 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3916 CompletionTriggerKind::TRIGGER_CHARACTER
3917 }
3918 _ => CompletionTriggerKind::INVOKED,
3919 };
3920 let completion_context = CompletionContext {
3921 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3922 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3923 Some(String::from(trigger))
3924 } else {
3925 None
3926 }
3927 }),
3928 trigger_kind,
3929 };
3930 let completions =
3931 provider.completions(&buffer, buffer_position, completion_context, window, cx);
3932 let sort_completions = provider.sort_completions();
3933
3934 let id = post_inc(&mut self.next_completion_id);
3935 let task = cx.spawn_in(window, |editor, mut cx| {
3936 async move {
3937 editor.update(&mut cx, |this, _| {
3938 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3939 })?;
3940 let completions = completions.await.log_err();
3941 let menu = if let Some(completions) = completions {
3942 let mut menu = CompletionsMenu::new(
3943 id,
3944 sort_completions,
3945 show_completion_documentation,
3946 position,
3947 buffer.clone(),
3948 completions.into(),
3949 );
3950
3951 menu.filter(query.as_deref(), cx.background_executor().clone())
3952 .await;
3953
3954 menu.visible().then_some(menu)
3955 } else {
3956 None
3957 };
3958
3959 editor.update_in(&mut cx, |editor, window, cx| {
3960 match editor.context_menu.borrow().as_ref() {
3961 None => {}
3962 Some(CodeContextMenu::Completions(prev_menu)) => {
3963 if prev_menu.id > id {
3964 return;
3965 }
3966 }
3967 _ => return,
3968 }
3969
3970 if editor.focus_handle.is_focused(window) && menu.is_some() {
3971 let mut menu = menu.unwrap();
3972 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3973
3974 *editor.context_menu.borrow_mut() =
3975 Some(CodeContextMenu::Completions(menu));
3976
3977 if editor.show_edit_predictions_in_menu() {
3978 editor.update_visible_inline_completion(window, cx);
3979 } else {
3980 editor.discard_inline_completion(false, cx);
3981 }
3982
3983 cx.notify();
3984 } else if editor.completion_tasks.len() <= 1 {
3985 // If there are no more completion tasks and the last menu was
3986 // empty, we should hide it.
3987 let was_hidden = editor.hide_context_menu(window, cx).is_none();
3988 // If it was already hidden and we don't show inline
3989 // completions in the menu, we should also show the
3990 // inline-completion when available.
3991 if was_hidden && editor.show_edit_predictions_in_menu() {
3992 editor.update_visible_inline_completion(window, cx);
3993 }
3994 }
3995 })?;
3996
3997 Ok::<_, anyhow::Error>(())
3998 }
3999 .log_err()
4000 });
4001
4002 self.completion_tasks.push((id, task));
4003 }
4004
4005 pub fn confirm_completion(
4006 &mut self,
4007 action: &ConfirmCompletion,
4008 window: &mut Window,
4009 cx: &mut Context<Self>,
4010 ) -> Option<Task<Result<()>>> {
4011 self.do_completion(action.item_ix, CompletionIntent::Complete, window, cx)
4012 }
4013
4014 pub fn compose_completion(
4015 &mut self,
4016 action: &ComposeCompletion,
4017 window: &mut Window,
4018 cx: &mut Context<Self>,
4019 ) -> Option<Task<Result<()>>> {
4020 self.do_completion(action.item_ix, CompletionIntent::Compose, window, cx)
4021 }
4022
4023 fn do_completion(
4024 &mut self,
4025 item_ix: Option<usize>,
4026 intent: CompletionIntent,
4027 window: &mut Window,
4028 cx: &mut Context<Editor>,
4029 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4030 use language::ToOffset as _;
4031
4032 let completions_menu =
4033 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(window, cx)? {
4034 menu
4035 } else {
4036 return None;
4037 };
4038
4039 let entries = completions_menu.entries.borrow();
4040 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
4041 if self.show_edit_predictions_in_menu() {
4042 self.discard_inline_completion(true, cx);
4043 }
4044 let candidate_id = mat.candidate_id;
4045 drop(entries);
4046
4047 let buffer_handle = completions_menu.buffer;
4048 let completion = completions_menu
4049 .completions
4050 .borrow()
4051 .get(candidate_id)?
4052 .clone();
4053 cx.stop_propagation();
4054
4055 let snippet;
4056 let text;
4057
4058 if completion.is_snippet() {
4059 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4060 text = snippet.as_ref().unwrap().text.clone();
4061 } else {
4062 snippet = None;
4063 text = completion.new_text.clone();
4064 };
4065 let selections = self.selections.all::<usize>(cx);
4066 let buffer = buffer_handle.read(cx);
4067 let old_range = completion.old_range.to_offset(buffer);
4068 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4069
4070 let newest_selection = self.selections.newest_anchor();
4071 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4072 return None;
4073 }
4074
4075 let lookbehind = newest_selection
4076 .start
4077 .text_anchor
4078 .to_offset(buffer)
4079 .saturating_sub(old_range.start);
4080 let lookahead = old_range
4081 .end
4082 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4083 let mut common_prefix_len = old_text
4084 .bytes()
4085 .zip(text.bytes())
4086 .take_while(|(a, b)| a == b)
4087 .count();
4088
4089 let snapshot = self.buffer.read(cx).snapshot(cx);
4090 let mut range_to_replace: Option<Range<isize>> = None;
4091 let mut ranges = Vec::new();
4092 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4093 for selection in &selections {
4094 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4095 let start = selection.start.saturating_sub(lookbehind);
4096 let end = selection.end + lookahead;
4097 if selection.id == newest_selection.id {
4098 range_to_replace = Some(
4099 ((start + common_prefix_len) as isize - selection.start as isize)
4100 ..(end as isize - selection.start as isize),
4101 );
4102 }
4103 ranges.push(start + common_prefix_len..end);
4104 } else {
4105 common_prefix_len = 0;
4106 ranges.clear();
4107 ranges.extend(selections.iter().map(|s| {
4108 if s.id == newest_selection.id {
4109 range_to_replace = Some(
4110 old_range.start.to_offset_utf16(&snapshot).0 as isize
4111 - selection.start as isize
4112 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4113 - selection.start as isize,
4114 );
4115 old_range.clone()
4116 } else {
4117 s.start..s.end
4118 }
4119 }));
4120 break;
4121 }
4122 if !self.linked_edit_ranges.is_empty() {
4123 let start_anchor = snapshot.anchor_before(selection.head());
4124 let end_anchor = snapshot.anchor_after(selection.tail());
4125 if let Some(ranges) = self
4126 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4127 {
4128 for (buffer, edits) in ranges {
4129 linked_edits.entry(buffer.clone()).or_default().extend(
4130 edits
4131 .into_iter()
4132 .map(|range| (range, text[common_prefix_len..].to_owned())),
4133 );
4134 }
4135 }
4136 }
4137 }
4138 let text = &text[common_prefix_len..];
4139
4140 cx.emit(EditorEvent::InputHandled {
4141 utf16_range_to_replace: range_to_replace,
4142 text: text.into(),
4143 });
4144
4145 self.transact(window, cx, |this, window, cx| {
4146 if let Some(mut snippet) = snippet {
4147 snippet.text = text.to_string();
4148 for tabstop in snippet
4149 .tabstops
4150 .iter_mut()
4151 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4152 {
4153 tabstop.start -= common_prefix_len as isize;
4154 tabstop.end -= common_prefix_len as isize;
4155 }
4156
4157 this.insert_snippet(&ranges, snippet, window, cx).log_err();
4158 } else {
4159 this.buffer.update(cx, |buffer, cx| {
4160 buffer.edit(
4161 ranges.iter().map(|range| (range.clone(), text)),
4162 this.autoindent_mode.clone(),
4163 cx,
4164 );
4165 });
4166 }
4167 for (buffer, edits) in linked_edits {
4168 buffer.update(cx, |buffer, cx| {
4169 let snapshot = buffer.snapshot();
4170 let edits = edits
4171 .into_iter()
4172 .map(|(range, text)| {
4173 use text::ToPoint as TP;
4174 let end_point = TP::to_point(&range.end, &snapshot);
4175 let start_point = TP::to_point(&range.start, &snapshot);
4176 (start_point..end_point, text)
4177 })
4178 .sorted_by_key(|(range, _)| range.start)
4179 .collect::<Vec<_>>();
4180 buffer.edit(edits, None, cx);
4181 })
4182 }
4183
4184 this.refresh_inline_completion(true, false, window, cx);
4185 });
4186
4187 let show_new_completions_on_confirm = completion
4188 .confirm
4189 .as_ref()
4190 .map_or(false, |confirm| confirm(intent, window, cx));
4191 if show_new_completions_on_confirm {
4192 self.show_completions(&ShowCompletions { trigger: None }, window, cx);
4193 }
4194
4195 let provider = self.completion_provider.as_ref()?;
4196 drop(completion);
4197 let apply_edits = provider.apply_additional_edits_for_completion(
4198 buffer_handle,
4199 completions_menu.completions.clone(),
4200 candidate_id,
4201 true,
4202 cx,
4203 );
4204
4205 let editor_settings = EditorSettings::get_global(cx);
4206 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4207 // After the code completion is finished, users often want to know what signatures are needed.
4208 // so we should automatically call signature_help
4209 self.show_signature_help(&ShowSignatureHelp, window, cx);
4210 }
4211
4212 Some(cx.foreground_executor().spawn(async move {
4213 apply_edits.await?;
4214 Ok(())
4215 }))
4216 }
4217
4218 pub fn toggle_code_actions(
4219 &mut self,
4220 action: &ToggleCodeActions,
4221 window: &mut Window,
4222 cx: &mut Context<Self>,
4223 ) {
4224 let mut context_menu = self.context_menu.borrow_mut();
4225 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4226 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4227 // Toggle if we're selecting the same one
4228 *context_menu = None;
4229 cx.notify();
4230 return;
4231 } else {
4232 // Otherwise, clear it and start a new one
4233 *context_menu = None;
4234 cx.notify();
4235 }
4236 }
4237 drop(context_menu);
4238 let snapshot = self.snapshot(window, cx);
4239 let deployed_from_indicator = action.deployed_from_indicator;
4240 let mut task = self.code_actions_task.take();
4241 let action = action.clone();
4242 cx.spawn_in(window, |editor, mut cx| async move {
4243 while let Some(prev_task) = task {
4244 prev_task.await.log_err();
4245 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4246 }
4247
4248 let spawned_test_task = editor.update_in(&mut cx, |editor, window, cx| {
4249 if editor.focus_handle.is_focused(window) {
4250 let multibuffer_point = action
4251 .deployed_from_indicator
4252 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4253 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4254 let (buffer, buffer_row) = snapshot
4255 .buffer_snapshot
4256 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4257 .and_then(|(buffer_snapshot, range)| {
4258 editor
4259 .buffer
4260 .read(cx)
4261 .buffer(buffer_snapshot.remote_id())
4262 .map(|buffer| (buffer, range.start.row))
4263 })?;
4264 let (_, code_actions) = editor
4265 .available_code_actions
4266 .clone()
4267 .and_then(|(location, code_actions)| {
4268 let snapshot = location.buffer.read(cx).snapshot();
4269 let point_range = location.range.to_point(&snapshot);
4270 let point_range = point_range.start.row..=point_range.end.row;
4271 if point_range.contains(&buffer_row) {
4272 Some((location, code_actions))
4273 } else {
4274 None
4275 }
4276 })
4277 .unzip();
4278 let buffer_id = buffer.read(cx).remote_id();
4279 let tasks = editor
4280 .tasks
4281 .get(&(buffer_id, buffer_row))
4282 .map(|t| Arc::new(t.to_owned()));
4283 if tasks.is_none() && code_actions.is_none() {
4284 return None;
4285 }
4286
4287 editor.completion_tasks.clear();
4288 editor.discard_inline_completion(false, cx);
4289 let task_context =
4290 tasks
4291 .as_ref()
4292 .zip(editor.project.clone())
4293 .map(|(tasks, project)| {
4294 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4295 });
4296
4297 Some(cx.spawn_in(window, |editor, mut cx| async move {
4298 let task_context = match task_context {
4299 Some(task_context) => task_context.await,
4300 None => None,
4301 };
4302 let resolved_tasks =
4303 tasks.zip(task_context).map(|(tasks, task_context)| {
4304 Rc::new(ResolvedTasks {
4305 templates: tasks.resolve(&task_context).collect(),
4306 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4307 multibuffer_point.row,
4308 tasks.column,
4309 )),
4310 })
4311 });
4312 let spawn_straight_away = resolved_tasks
4313 .as_ref()
4314 .map_or(false, |tasks| tasks.templates.len() == 1)
4315 && code_actions
4316 .as_ref()
4317 .map_or(true, |actions| actions.is_empty());
4318 if let Ok(task) = editor.update_in(&mut cx, |editor, window, cx| {
4319 *editor.context_menu.borrow_mut() =
4320 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4321 buffer,
4322 actions: CodeActionContents {
4323 tasks: resolved_tasks,
4324 actions: code_actions,
4325 },
4326 selected_item: Default::default(),
4327 scroll_handle: UniformListScrollHandle::default(),
4328 deployed_from_indicator,
4329 }));
4330 if spawn_straight_away {
4331 if let Some(task) = editor.confirm_code_action(
4332 &ConfirmCodeAction { item_ix: Some(0) },
4333 window,
4334 cx,
4335 ) {
4336 cx.notify();
4337 return task;
4338 }
4339 }
4340 cx.notify();
4341 Task::ready(Ok(()))
4342 }) {
4343 task.await
4344 } else {
4345 Ok(())
4346 }
4347 }))
4348 } else {
4349 Some(Task::ready(Ok(())))
4350 }
4351 })?;
4352 if let Some(task) = spawned_test_task {
4353 task.await?;
4354 }
4355
4356 Ok::<_, anyhow::Error>(())
4357 })
4358 .detach_and_log_err(cx);
4359 }
4360
4361 pub fn confirm_code_action(
4362 &mut self,
4363 action: &ConfirmCodeAction,
4364 window: &mut Window,
4365 cx: &mut Context<Self>,
4366 ) -> Option<Task<Result<()>>> {
4367 let actions_menu =
4368 if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(window, cx)? {
4369 menu
4370 } else {
4371 return None;
4372 };
4373 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4374 let action = actions_menu.actions.get(action_ix)?;
4375 let title = action.label();
4376 let buffer = actions_menu.buffer;
4377 let workspace = self.workspace()?;
4378
4379 match action {
4380 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4381 workspace.update(cx, |workspace, cx| {
4382 workspace::tasks::schedule_resolved_task(
4383 workspace,
4384 task_source_kind,
4385 resolved_task,
4386 false,
4387 cx,
4388 );
4389
4390 Some(Task::ready(Ok(())))
4391 })
4392 }
4393 CodeActionsItem::CodeAction {
4394 excerpt_id,
4395 action,
4396 provider,
4397 } => {
4398 let apply_code_action =
4399 provider.apply_code_action(buffer, action, excerpt_id, true, window, cx);
4400 let workspace = workspace.downgrade();
4401 Some(cx.spawn_in(window, |editor, cx| async move {
4402 let project_transaction = apply_code_action.await?;
4403 Self::open_project_transaction(
4404 &editor,
4405 workspace,
4406 project_transaction,
4407 title,
4408 cx,
4409 )
4410 .await
4411 }))
4412 }
4413 }
4414 }
4415
4416 pub async fn open_project_transaction(
4417 this: &WeakEntity<Editor>,
4418 workspace: WeakEntity<Workspace>,
4419 transaction: ProjectTransaction,
4420 title: String,
4421 mut cx: AsyncWindowContext,
4422 ) -> Result<()> {
4423 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4424 cx.update(|_, cx| {
4425 entries.sort_unstable_by_key(|(buffer, _)| {
4426 buffer.read(cx).file().map(|f| f.path().clone())
4427 });
4428 })?;
4429
4430 // If the project transaction's edits are all contained within this editor, then
4431 // avoid opening a new editor to display them.
4432
4433 if let Some((buffer, transaction)) = entries.first() {
4434 if entries.len() == 1 {
4435 let excerpt = this.update(&mut cx, |editor, cx| {
4436 editor
4437 .buffer()
4438 .read(cx)
4439 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4440 })?;
4441 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4442 if excerpted_buffer == *buffer {
4443 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4444 let excerpt_range = excerpt_range.to_offset(buffer);
4445 buffer
4446 .edited_ranges_for_transaction::<usize>(transaction)
4447 .all(|range| {
4448 excerpt_range.start <= range.start
4449 && excerpt_range.end >= range.end
4450 })
4451 })?;
4452
4453 if all_edits_within_excerpt {
4454 return Ok(());
4455 }
4456 }
4457 }
4458 }
4459 } else {
4460 return Ok(());
4461 }
4462
4463 let mut ranges_to_highlight = Vec::new();
4464 let excerpt_buffer = cx.new(|cx| {
4465 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4466 for (buffer_handle, transaction) in &entries {
4467 let buffer = buffer_handle.read(cx);
4468 ranges_to_highlight.extend(
4469 multibuffer.push_excerpts_with_context_lines(
4470 buffer_handle.clone(),
4471 buffer
4472 .edited_ranges_for_transaction::<usize>(transaction)
4473 .collect(),
4474 DEFAULT_MULTIBUFFER_CONTEXT,
4475 cx,
4476 ),
4477 );
4478 }
4479 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4480 multibuffer
4481 })?;
4482
4483 workspace.update_in(&mut cx, |workspace, window, cx| {
4484 let project = workspace.project().clone();
4485 let editor = cx
4486 .new(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, window, cx));
4487 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, window, cx);
4488 editor.update(cx, |editor, cx| {
4489 editor.highlight_background::<Self>(
4490 &ranges_to_highlight,
4491 |theme| theme.editor_highlighted_line_background,
4492 cx,
4493 );
4494 });
4495 })?;
4496
4497 Ok(())
4498 }
4499
4500 pub fn clear_code_action_providers(&mut self) {
4501 self.code_action_providers.clear();
4502 self.available_code_actions.take();
4503 }
4504
4505 pub fn add_code_action_provider(
4506 &mut self,
4507 provider: Rc<dyn CodeActionProvider>,
4508 window: &mut Window,
4509 cx: &mut Context<Self>,
4510 ) {
4511 if self
4512 .code_action_providers
4513 .iter()
4514 .any(|existing_provider| existing_provider.id() == provider.id())
4515 {
4516 return;
4517 }
4518
4519 self.code_action_providers.push(provider);
4520 self.refresh_code_actions(window, cx);
4521 }
4522
4523 pub fn remove_code_action_provider(
4524 &mut self,
4525 id: Arc<str>,
4526 window: &mut Window,
4527 cx: &mut Context<Self>,
4528 ) {
4529 self.code_action_providers
4530 .retain(|provider| provider.id() != id);
4531 self.refresh_code_actions(window, cx);
4532 }
4533
4534 fn refresh_code_actions(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Option<()> {
4535 let buffer = self.buffer.read(cx);
4536 let newest_selection = self.selections.newest_anchor().clone();
4537 if newest_selection.head().diff_base_anchor.is_some() {
4538 return None;
4539 }
4540 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4541 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4542 if start_buffer != end_buffer {
4543 return None;
4544 }
4545
4546 self.code_actions_task = Some(cx.spawn_in(window, |this, mut cx| async move {
4547 cx.background_executor()
4548 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4549 .await;
4550
4551 let (providers, tasks) = this.update_in(&mut cx, |this, window, cx| {
4552 let providers = this.code_action_providers.clone();
4553 let tasks = this
4554 .code_action_providers
4555 .iter()
4556 .map(|provider| provider.code_actions(&start_buffer, start..end, window, cx))
4557 .collect::<Vec<_>>();
4558 (providers, tasks)
4559 })?;
4560
4561 let mut actions = Vec::new();
4562 for (provider, provider_actions) in
4563 providers.into_iter().zip(future::join_all(tasks).await)
4564 {
4565 if let Some(provider_actions) = provider_actions.log_err() {
4566 actions.extend(provider_actions.into_iter().map(|action| {
4567 AvailableCodeAction {
4568 excerpt_id: newest_selection.start.excerpt_id,
4569 action,
4570 provider: provider.clone(),
4571 }
4572 }));
4573 }
4574 }
4575
4576 this.update(&mut cx, |this, cx| {
4577 this.available_code_actions = if actions.is_empty() {
4578 None
4579 } else {
4580 Some((
4581 Location {
4582 buffer: start_buffer,
4583 range: start..end,
4584 },
4585 actions.into(),
4586 ))
4587 };
4588 cx.notify();
4589 })
4590 }));
4591 None
4592 }
4593
4594 fn start_inline_blame_timer(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4595 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4596 self.show_git_blame_inline = false;
4597
4598 self.show_git_blame_inline_delay_task =
4599 Some(cx.spawn_in(window, |this, mut cx| async move {
4600 cx.background_executor().timer(delay).await;
4601
4602 this.update(&mut cx, |this, cx| {
4603 this.show_git_blame_inline = true;
4604 cx.notify();
4605 })
4606 .log_err();
4607 }));
4608 }
4609 }
4610
4611 fn refresh_document_highlights(&mut self, cx: &mut Context<Self>) -> Option<()> {
4612 if self.pending_rename.is_some() {
4613 return None;
4614 }
4615
4616 let provider = self.semantics_provider.clone()?;
4617 let buffer = self.buffer.read(cx);
4618 let newest_selection = self.selections.newest_anchor().clone();
4619 let cursor_position = newest_selection.head();
4620 let (cursor_buffer, cursor_buffer_position) =
4621 buffer.text_anchor_for_position(cursor_position, cx)?;
4622 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4623 if cursor_buffer != tail_buffer {
4624 return None;
4625 }
4626 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4627 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4628 cx.background_executor()
4629 .timer(Duration::from_millis(debounce))
4630 .await;
4631
4632 let highlights = if let Some(highlights) = cx
4633 .update(|cx| {
4634 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4635 })
4636 .ok()
4637 .flatten()
4638 {
4639 highlights.await.log_err()
4640 } else {
4641 None
4642 };
4643
4644 if let Some(highlights) = highlights {
4645 this.update(&mut cx, |this, cx| {
4646 if this.pending_rename.is_some() {
4647 return;
4648 }
4649
4650 let buffer_id = cursor_position.buffer_id;
4651 let buffer = this.buffer.read(cx);
4652 if !buffer
4653 .text_anchor_for_position(cursor_position, cx)
4654 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4655 {
4656 return;
4657 }
4658
4659 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4660 let mut write_ranges = Vec::new();
4661 let mut read_ranges = Vec::new();
4662 for highlight in highlights {
4663 for (excerpt_id, excerpt_range) in
4664 buffer.excerpts_for_buffer(cursor_buffer.read(cx).remote_id(), cx)
4665 {
4666 let start = highlight
4667 .range
4668 .start
4669 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4670 let end = highlight
4671 .range
4672 .end
4673 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4674 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4675 continue;
4676 }
4677
4678 let range = Anchor {
4679 buffer_id,
4680 excerpt_id,
4681 text_anchor: start,
4682 diff_base_anchor: None,
4683 }..Anchor {
4684 buffer_id,
4685 excerpt_id,
4686 text_anchor: end,
4687 diff_base_anchor: None,
4688 };
4689 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4690 write_ranges.push(range);
4691 } else {
4692 read_ranges.push(range);
4693 }
4694 }
4695 }
4696
4697 this.highlight_background::<DocumentHighlightRead>(
4698 &read_ranges,
4699 |theme| theme.editor_document_highlight_read_background,
4700 cx,
4701 );
4702 this.highlight_background::<DocumentHighlightWrite>(
4703 &write_ranges,
4704 |theme| theme.editor_document_highlight_write_background,
4705 cx,
4706 );
4707 cx.notify();
4708 })
4709 .log_err();
4710 }
4711 }));
4712 None
4713 }
4714
4715 pub fn refresh_inline_completion(
4716 &mut self,
4717 debounce: bool,
4718 user_requested: bool,
4719 window: &mut Window,
4720 cx: &mut Context<Self>,
4721 ) -> Option<()> {
4722 let provider = self.edit_prediction_provider()?;
4723 let cursor = self.selections.newest_anchor().head();
4724 let (buffer, cursor_buffer_position) =
4725 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4726
4727 if !self.inline_completions_enabled_in_buffer(&buffer, cursor_buffer_position, cx) {
4728 self.discard_inline_completion(false, cx);
4729 return None;
4730 }
4731
4732 if !user_requested
4733 && (!self.should_show_edit_predictions()
4734 || !self.is_focused(window)
4735 || buffer.read(cx).is_empty())
4736 {
4737 self.discard_inline_completion(false, cx);
4738 return None;
4739 }
4740
4741 self.update_visible_inline_completion(window, cx);
4742 provider.refresh(
4743 self.project.clone(),
4744 buffer,
4745 cursor_buffer_position,
4746 debounce,
4747 cx,
4748 );
4749 Some(())
4750 }
4751
4752 fn show_edit_predictions_in_menu(&self) -> bool {
4753 match self.edit_prediction_settings {
4754 EditPredictionSettings::Disabled => false,
4755 EditPredictionSettings::Enabled { show_in_menu, .. } => show_in_menu,
4756 }
4757 }
4758
4759 pub fn edit_predictions_enabled(&self) -> bool {
4760 match self.edit_prediction_settings {
4761 EditPredictionSettings::Disabled => false,
4762 EditPredictionSettings::Enabled { .. } => true,
4763 }
4764 }
4765
4766 fn edit_prediction_requires_modifier(&self) -> bool {
4767 match self.edit_prediction_settings {
4768 EditPredictionSettings::Disabled => false,
4769 EditPredictionSettings::Enabled {
4770 preview_requires_modifier,
4771 ..
4772 } => preview_requires_modifier,
4773 }
4774 }
4775
4776 fn edit_prediction_settings_at_position(
4777 &self,
4778 buffer: &Entity<Buffer>,
4779 buffer_position: language::Anchor,
4780 cx: &App,
4781 ) -> EditPredictionSettings {
4782 if self.mode != EditorMode::Full
4783 || !self.show_inline_completions_override.unwrap_or(true)
4784 || self.inline_completions_disabled_in_scope(buffer, buffer_position, cx)
4785 {
4786 return EditPredictionSettings::Disabled;
4787 }
4788
4789 let buffer = buffer.read(cx);
4790
4791 let file = buffer.file();
4792
4793 if !language_settings(buffer.language().map(|l| l.name()), file, cx).show_edit_predictions {
4794 return EditPredictionSettings::Disabled;
4795 };
4796
4797 let by_provider = matches!(
4798 self.menu_inline_completions_policy,
4799 MenuInlineCompletionsPolicy::ByProvider
4800 );
4801
4802 let show_in_menu = by_provider
4803 && self
4804 .edit_prediction_provider
4805 .as_ref()
4806 .map_or(false, |provider| {
4807 provider.provider.show_completions_in_menu()
4808 });
4809
4810 let preview_requires_modifier =
4811 all_language_settings(file, cx).edit_predictions_mode() == EditPredictionsMode::Auto;
4812
4813 EditPredictionSettings::Enabled {
4814 show_in_menu,
4815 preview_requires_modifier,
4816 }
4817 }
4818
4819 fn should_show_edit_predictions(&self) -> bool {
4820 self.snippet_stack.is_empty() && self.edit_predictions_enabled()
4821 }
4822
4823 pub fn edit_prediction_preview_is_active(&self) -> bool {
4824 matches!(
4825 self.edit_prediction_preview,
4826 EditPredictionPreview::Active { .. }
4827 )
4828 }
4829
4830 pub fn inline_completions_enabled(&self, cx: &App) -> bool {
4831 let cursor = self.selections.newest_anchor().head();
4832 if let Some((buffer, cursor_position)) =
4833 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4834 {
4835 self.inline_completions_enabled_in_buffer(&buffer, cursor_position, cx)
4836 } else {
4837 false
4838 }
4839 }
4840
4841 fn inline_completions_enabled_in_buffer(
4842 &self,
4843 buffer: &Entity<Buffer>,
4844 buffer_position: language::Anchor,
4845 cx: &App,
4846 ) -> bool {
4847 maybe!({
4848 let provider = self.edit_prediction_provider()?;
4849 if !provider.is_enabled(&buffer, buffer_position, cx) {
4850 return Some(false);
4851 }
4852 let buffer = buffer.read(cx);
4853 let Some(file) = buffer.file() else {
4854 return Some(true);
4855 };
4856 let settings = all_language_settings(Some(file), cx);
4857 Some(settings.inline_completions_enabled_for_path(file.path()))
4858 })
4859 .unwrap_or(false)
4860 }
4861
4862 fn cycle_inline_completion(
4863 &mut self,
4864 direction: Direction,
4865 window: &mut Window,
4866 cx: &mut Context<Self>,
4867 ) -> Option<()> {
4868 let provider = self.edit_prediction_provider()?;
4869 let cursor = self.selections.newest_anchor().head();
4870 let (buffer, cursor_buffer_position) =
4871 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4872 if self.inline_completions_hidden_for_vim_mode || !self.should_show_edit_predictions() {
4873 return None;
4874 }
4875
4876 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4877 self.update_visible_inline_completion(window, cx);
4878
4879 Some(())
4880 }
4881
4882 pub fn show_inline_completion(
4883 &mut self,
4884 _: &ShowEditPrediction,
4885 window: &mut Window,
4886 cx: &mut Context<Self>,
4887 ) {
4888 if !self.has_active_inline_completion() {
4889 self.refresh_inline_completion(false, true, window, cx);
4890 return;
4891 }
4892
4893 self.update_visible_inline_completion(window, cx);
4894 }
4895
4896 pub fn display_cursor_names(
4897 &mut self,
4898 _: &DisplayCursorNames,
4899 window: &mut Window,
4900 cx: &mut Context<Self>,
4901 ) {
4902 self.show_cursor_names(window, cx);
4903 }
4904
4905 fn show_cursor_names(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4906 self.show_cursor_names = true;
4907 cx.notify();
4908 cx.spawn_in(window, |this, mut cx| async move {
4909 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4910 this.update(&mut cx, |this, cx| {
4911 this.show_cursor_names = false;
4912 cx.notify()
4913 })
4914 .ok()
4915 })
4916 .detach();
4917 }
4918
4919 pub fn next_edit_prediction(
4920 &mut self,
4921 _: &NextEditPrediction,
4922 window: &mut Window,
4923 cx: &mut Context<Self>,
4924 ) {
4925 if self.has_active_inline_completion() {
4926 self.cycle_inline_completion(Direction::Next, window, cx);
4927 } else {
4928 let is_copilot_disabled = self
4929 .refresh_inline_completion(false, true, window, cx)
4930 .is_none();
4931 if is_copilot_disabled {
4932 cx.propagate();
4933 }
4934 }
4935 }
4936
4937 pub fn previous_edit_prediction(
4938 &mut self,
4939 _: &PreviousEditPrediction,
4940 window: &mut Window,
4941 cx: &mut Context<Self>,
4942 ) {
4943 if self.has_active_inline_completion() {
4944 self.cycle_inline_completion(Direction::Prev, window, cx);
4945 } else {
4946 let is_copilot_disabled = self
4947 .refresh_inline_completion(false, true, window, cx)
4948 .is_none();
4949 if is_copilot_disabled {
4950 cx.propagate();
4951 }
4952 }
4953 }
4954
4955 pub fn accept_edit_prediction(
4956 &mut self,
4957 _: &AcceptEditPrediction,
4958 window: &mut Window,
4959 cx: &mut Context<Self>,
4960 ) {
4961 if self.show_edit_predictions_in_menu() {
4962 self.hide_context_menu(window, cx);
4963 }
4964
4965 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4966 return;
4967 };
4968
4969 self.report_inline_completion_event(
4970 active_inline_completion.completion_id.clone(),
4971 true,
4972 cx,
4973 );
4974
4975 match &active_inline_completion.completion {
4976 InlineCompletion::Move { target, .. } => {
4977 let target = *target;
4978
4979 if let Some(position_map) = &self.last_position_map {
4980 if position_map
4981 .visible_row_range
4982 .contains(&target.to_display_point(&position_map.snapshot).row())
4983 || !self.edit_prediction_requires_modifier()
4984 {
4985 // Note that this is also done in vim's handler of the Tab action.
4986 self.change_selections(
4987 Some(Autoscroll::newest()),
4988 window,
4989 cx,
4990 |selections| {
4991 selections.select_anchor_ranges([target..target]);
4992 },
4993 );
4994 self.clear_row_highlights::<EditPredictionPreview>();
4995
4996 self.edit_prediction_preview = EditPredictionPreview::Active {
4997 previous_scroll_position: None,
4998 };
4999 } else {
5000 self.edit_prediction_preview = EditPredictionPreview::Active {
5001 previous_scroll_position: Some(position_map.snapshot.scroll_anchor),
5002 };
5003 self.highlight_rows::<EditPredictionPreview>(
5004 target..target,
5005 cx.theme().colors().editor_highlighted_line_background,
5006 true,
5007 cx,
5008 );
5009 self.request_autoscroll(Autoscroll::fit(), cx);
5010 }
5011 }
5012 }
5013 InlineCompletion::Edit { edits, .. } => {
5014 if let Some(provider) = self.edit_prediction_provider() {
5015 provider.accept(cx);
5016 }
5017
5018 let snapshot = self.buffer.read(cx).snapshot(cx);
5019 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
5020
5021 self.buffer.update(cx, |buffer, cx| {
5022 buffer.edit(edits.iter().cloned(), None, cx)
5023 });
5024
5025 self.change_selections(None, window, cx, |s| {
5026 s.select_anchor_ranges([last_edit_end..last_edit_end])
5027 });
5028
5029 self.update_visible_inline_completion(window, cx);
5030 if self.active_inline_completion.is_none() {
5031 self.refresh_inline_completion(true, true, window, cx);
5032 }
5033
5034 cx.notify();
5035 }
5036 }
5037
5038 self.edit_prediction_requires_modifier_in_leading_space = false;
5039 }
5040
5041 pub fn accept_partial_inline_completion(
5042 &mut self,
5043 _: &AcceptPartialEditPrediction,
5044 window: &mut Window,
5045 cx: &mut Context<Self>,
5046 ) {
5047 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
5048 return;
5049 };
5050 if self.selections.count() != 1 {
5051 return;
5052 }
5053
5054 self.report_inline_completion_event(
5055 active_inline_completion.completion_id.clone(),
5056 true,
5057 cx,
5058 );
5059
5060 match &active_inline_completion.completion {
5061 InlineCompletion::Move { target, .. } => {
5062 let target = *target;
5063 self.change_selections(Some(Autoscroll::newest()), window, cx, |selections| {
5064 selections.select_anchor_ranges([target..target]);
5065 });
5066 }
5067 InlineCompletion::Edit { edits, .. } => {
5068 // Find an insertion that starts at the cursor position.
5069 let snapshot = self.buffer.read(cx).snapshot(cx);
5070 let cursor_offset = self.selections.newest::<usize>(cx).head();
5071 let insertion = edits.iter().find_map(|(range, text)| {
5072 let range = range.to_offset(&snapshot);
5073 if range.is_empty() && range.start == cursor_offset {
5074 Some(text)
5075 } else {
5076 None
5077 }
5078 });
5079
5080 if let Some(text) = insertion {
5081 let mut partial_completion = text
5082 .chars()
5083 .by_ref()
5084 .take_while(|c| c.is_alphabetic())
5085 .collect::<String>();
5086 if partial_completion.is_empty() {
5087 partial_completion = text
5088 .chars()
5089 .by_ref()
5090 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5091 .collect::<String>();
5092 }
5093
5094 cx.emit(EditorEvent::InputHandled {
5095 utf16_range_to_replace: None,
5096 text: partial_completion.clone().into(),
5097 });
5098
5099 self.insert_with_autoindent_mode(&partial_completion, None, window, cx);
5100
5101 self.refresh_inline_completion(true, true, window, cx);
5102 cx.notify();
5103 } else {
5104 self.accept_edit_prediction(&Default::default(), window, cx);
5105 }
5106 }
5107 }
5108 }
5109
5110 fn discard_inline_completion(
5111 &mut self,
5112 should_report_inline_completion_event: bool,
5113 cx: &mut Context<Self>,
5114 ) -> bool {
5115 if should_report_inline_completion_event {
5116 let completion_id = self
5117 .active_inline_completion
5118 .as_ref()
5119 .and_then(|active_completion| active_completion.completion_id.clone());
5120
5121 self.report_inline_completion_event(completion_id, false, cx);
5122 }
5123
5124 if let Some(provider) = self.edit_prediction_provider() {
5125 provider.discard(cx);
5126 }
5127
5128 self.take_active_inline_completion(cx)
5129 }
5130
5131 fn report_inline_completion_event(&self, id: Option<SharedString>, accepted: bool, cx: &App) {
5132 let Some(provider) = self.edit_prediction_provider() else {
5133 return;
5134 };
5135
5136 let Some((_, buffer, _)) = self
5137 .buffer
5138 .read(cx)
5139 .excerpt_containing(self.selections.newest_anchor().head(), cx)
5140 else {
5141 return;
5142 };
5143
5144 let extension = buffer
5145 .read(cx)
5146 .file()
5147 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
5148
5149 let event_type = match accepted {
5150 true => "Edit Prediction Accepted",
5151 false => "Edit Prediction Discarded",
5152 };
5153 telemetry::event!(
5154 event_type,
5155 provider = provider.name(),
5156 prediction_id = id,
5157 suggestion_accepted = accepted,
5158 file_extension = extension,
5159 );
5160 }
5161
5162 pub fn has_active_inline_completion(&self) -> bool {
5163 self.active_inline_completion.is_some()
5164 }
5165
5166 fn take_active_inline_completion(&mut self, cx: &mut Context<Self>) -> bool {
5167 let Some(active_inline_completion) = self.active_inline_completion.take() else {
5168 return false;
5169 };
5170
5171 self.splice_inlays(&active_inline_completion.inlay_ids, Default::default(), cx);
5172 self.clear_highlights::<InlineCompletionHighlight>(cx);
5173 self.stale_inline_completion_in_menu = Some(active_inline_completion);
5174 true
5175 }
5176
5177 /// Returns true when we're displaying the edit prediction popover below the cursor
5178 /// like we are not previewing and the LSP autocomplete menu is visible
5179 /// or we are in `when_holding_modifier` mode.
5180 pub fn edit_prediction_visible_in_cursor_popover(&self, has_completion: bool) -> bool {
5181 if self.edit_prediction_preview_is_active()
5182 || !self.show_edit_predictions_in_menu()
5183 || !self.edit_predictions_enabled()
5184 {
5185 return false;
5186 }
5187
5188 if self.has_visible_completions_menu() {
5189 return true;
5190 }
5191
5192 has_completion && self.edit_prediction_requires_modifier()
5193 }
5194
5195 fn handle_modifiers_changed(
5196 &mut self,
5197 modifiers: Modifiers,
5198 position_map: &PositionMap,
5199 window: &mut Window,
5200 cx: &mut Context<Self>,
5201 ) {
5202 if self.show_edit_predictions_in_menu() {
5203 self.update_edit_prediction_preview(&modifiers, window, cx);
5204 }
5205
5206 let mouse_position = window.mouse_position();
5207 if !position_map.text_hitbox.is_hovered(window) {
5208 return;
5209 }
5210
5211 self.update_hovered_link(
5212 position_map.point_for_position(mouse_position),
5213 &position_map.snapshot,
5214 modifiers,
5215 window,
5216 cx,
5217 )
5218 }
5219
5220 fn update_edit_prediction_preview(
5221 &mut self,
5222 modifiers: &Modifiers,
5223 window: &mut Window,
5224 cx: &mut Context<Self>,
5225 ) {
5226 let accept_keybind = self.accept_edit_prediction_keybind(window, cx);
5227 let Some(accept_keystroke) = accept_keybind.keystroke() else {
5228 return;
5229 };
5230
5231 if &accept_keystroke.modifiers == modifiers && accept_keystroke.modifiers.modified() {
5232 if matches!(
5233 self.edit_prediction_preview,
5234 EditPredictionPreview::Inactive
5235 ) {
5236 self.edit_prediction_preview = EditPredictionPreview::Active {
5237 previous_scroll_position: None,
5238 };
5239
5240 self.update_visible_inline_completion(window, cx);
5241 cx.notify();
5242 }
5243 } else if let EditPredictionPreview::Active {
5244 previous_scroll_position,
5245 } = self.edit_prediction_preview
5246 {
5247 if let (Some(previous_scroll_position), Some(position_map)) =
5248 (previous_scroll_position, self.last_position_map.as_ref())
5249 {
5250 self.set_scroll_position(
5251 previous_scroll_position
5252 .scroll_position(&position_map.snapshot.display_snapshot),
5253 window,
5254 cx,
5255 );
5256 }
5257
5258 self.edit_prediction_preview = EditPredictionPreview::Inactive;
5259 self.clear_row_highlights::<EditPredictionPreview>();
5260 self.update_visible_inline_completion(window, cx);
5261 cx.notify();
5262 }
5263 }
5264
5265 fn update_visible_inline_completion(
5266 &mut self,
5267 _window: &mut Window,
5268 cx: &mut Context<Self>,
5269 ) -> Option<()> {
5270 let selection = self.selections.newest_anchor();
5271 let cursor = selection.head();
5272 let multibuffer = self.buffer.read(cx).snapshot(cx);
5273 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
5274 let excerpt_id = cursor.excerpt_id;
5275
5276 let show_in_menu = self.show_edit_predictions_in_menu();
5277 let completions_menu_has_precedence = !show_in_menu
5278 && (self.context_menu.borrow().is_some()
5279 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
5280
5281 if completions_menu_has_precedence
5282 || !offset_selection.is_empty()
5283 || self
5284 .active_inline_completion
5285 .as_ref()
5286 .map_or(false, |completion| {
5287 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
5288 let invalidation_range = invalidation_range.start..=invalidation_range.end;
5289 !invalidation_range.contains(&offset_selection.head())
5290 })
5291 {
5292 self.discard_inline_completion(false, cx);
5293 return None;
5294 }
5295
5296 self.take_active_inline_completion(cx);
5297 let Some(provider) = self.edit_prediction_provider() else {
5298 self.edit_prediction_settings = EditPredictionSettings::Disabled;
5299 return None;
5300 };
5301
5302 let (buffer, cursor_buffer_position) =
5303 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5304
5305 self.edit_prediction_settings =
5306 self.edit_prediction_settings_at_position(&buffer, cursor_buffer_position, cx);
5307
5308 self.edit_prediction_cursor_on_leading_whitespace =
5309 multibuffer.is_line_whitespace_upto(cursor);
5310
5311 let inline_completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
5312 let edits = inline_completion
5313 .edits
5314 .into_iter()
5315 .flat_map(|(range, new_text)| {
5316 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
5317 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
5318 Some((start..end, new_text))
5319 })
5320 .collect::<Vec<_>>();
5321 if edits.is_empty() {
5322 return None;
5323 }
5324
5325 let first_edit_start = edits.first().unwrap().0.start;
5326 let first_edit_start_point = first_edit_start.to_point(&multibuffer);
5327 let edit_start_row = first_edit_start_point.row.saturating_sub(2);
5328
5329 let last_edit_end = edits.last().unwrap().0.end;
5330 let last_edit_end_point = last_edit_end.to_point(&multibuffer);
5331 let edit_end_row = cmp::min(multibuffer.max_point().row, last_edit_end_point.row + 2);
5332
5333 let cursor_row = cursor.to_point(&multibuffer).row;
5334
5335 let snapshot = multibuffer.buffer_for_excerpt(excerpt_id).cloned()?;
5336
5337 let mut inlay_ids = Vec::new();
5338 let invalidation_row_range;
5339 let move_invalidation_row_range = if cursor_row < edit_start_row {
5340 Some(cursor_row..edit_end_row)
5341 } else if cursor_row > edit_end_row {
5342 Some(edit_start_row..cursor_row)
5343 } else {
5344 None
5345 };
5346 let is_move =
5347 move_invalidation_row_range.is_some() || self.inline_completions_hidden_for_vim_mode;
5348 let completion = if is_move {
5349 invalidation_row_range =
5350 move_invalidation_row_range.unwrap_or(edit_start_row..edit_end_row);
5351 let target = first_edit_start;
5352 InlineCompletion::Move { target, snapshot }
5353 } else {
5354 let show_completions_in_buffer = !self.edit_prediction_visible_in_cursor_popover(true)
5355 && !self.inline_completions_hidden_for_vim_mode;
5356
5357 if show_completions_in_buffer {
5358 if edits
5359 .iter()
5360 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
5361 {
5362 let mut inlays = Vec::new();
5363 for (range, new_text) in &edits {
5364 let inlay = Inlay::inline_completion(
5365 post_inc(&mut self.next_inlay_id),
5366 range.start,
5367 new_text.as_str(),
5368 );
5369 inlay_ids.push(inlay.id);
5370 inlays.push(inlay);
5371 }
5372
5373 self.splice_inlays(&[], inlays, cx);
5374 } else {
5375 let background_color = cx.theme().status().deleted_background;
5376 self.highlight_text::<InlineCompletionHighlight>(
5377 edits.iter().map(|(range, _)| range.clone()).collect(),
5378 HighlightStyle {
5379 background_color: Some(background_color),
5380 ..Default::default()
5381 },
5382 cx,
5383 );
5384 }
5385 }
5386
5387 invalidation_row_range = edit_start_row..edit_end_row;
5388
5389 let display_mode = if all_edits_insertions_or_deletions(&edits, &multibuffer) {
5390 if provider.show_tab_accept_marker() {
5391 EditDisplayMode::TabAccept
5392 } else {
5393 EditDisplayMode::Inline
5394 }
5395 } else {
5396 EditDisplayMode::DiffPopover
5397 };
5398
5399 InlineCompletion::Edit {
5400 edits,
5401 edit_preview: inline_completion.edit_preview,
5402 display_mode,
5403 snapshot,
5404 }
5405 };
5406
5407 let invalidation_range = multibuffer
5408 .anchor_before(Point::new(invalidation_row_range.start, 0))
5409 ..multibuffer.anchor_after(Point::new(
5410 invalidation_row_range.end,
5411 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
5412 ));
5413
5414 self.stale_inline_completion_in_menu = None;
5415 self.active_inline_completion = Some(InlineCompletionState {
5416 inlay_ids,
5417 completion,
5418 completion_id: inline_completion.id,
5419 invalidation_range,
5420 });
5421
5422 cx.notify();
5423
5424 Some(())
5425 }
5426
5427 pub fn edit_prediction_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5428 Some(self.edit_prediction_provider.as_ref()?.provider.clone())
5429 }
5430
5431 fn render_code_actions_indicator(
5432 &self,
5433 _style: &EditorStyle,
5434 row: DisplayRow,
5435 is_active: bool,
5436 cx: &mut Context<Self>,
5437 ) -> Option<IconButton> {
5438 if self.available_code_actions.is_some() {
5439 Some(
5440 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5441 .shape(ui::IconButtonShape::Square)
5442 .icon_size(IconSize::XSmall)
5443 .icon_color(Color::Muted)
5444 .toggle_state(is_active)
5445 .tooltip({
5446 let focus_handle = self.focus_handle.clone();
5447 move |window, cx| {
5448 Tooltip::for_action_in(
5449 "Toggle Code Actions",
5450 &ToggleCodeActions {
5451 deployed_from_indicator: None,
5452 },
5453 &focus_handle,
5454 window,
5455 cx,
5456 )
5457 }
5458 })
5459 .on_click(cx.listener(move |editor, _e, window, cx| {
5460 window.focus(&editor.focus_handle(cx));
5461 editor.toggle_code_actions(
5462 &ToggleCodeActions {
5463 deployed_from_indicator: Some(row),
5464 },
5465 window,
5466 cx,
5467 );
5468 })),
5469 )
5470 } else {
5471 None
5472 }
5473 }
5474
5475 fn clear_tasks(&mut self) {
5476 self.tasks.clear()
5477 }
5478
5479 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5480 if self.tasks.insert(key, value).is_some() {
5481 // This case should hopefully be rare, but just in case...
5482 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5483 }
5484 }
5485
5486 fn build_tasks_context(
5487 project: &Entity<Project>,
5488 buffer: &Entity<Buffer>,
5489 buffer_row: u32,
5490 tasks: &Arc<RunnableTasks>,
5491 cx: &mut Context<Self>,
5492 ) -> Task<Option<task::TaskContext>> {
5493 let position = Point::new(buffer_row, tasks.column);
5494 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5495 let location = Location {
5496 buffer: buffer.clone(),
5497 range: range_start..range_start,
5498 };
5499 // Fill in the environmental variables from the tree-sitter captures
5500 let mut captured_task_variables = TaskVariables::default();
5501 for (capture_name, value) in tasks.extra_variables.clone() {
5502 captured_task_variables.insert(
5503 task::VariableName::Custom(capture_name.into()),
5504 value.clone(),
5505 );
5506 }
5507 project.update(cx, |project, cx| {
5508 project.task_store().update(cx, |task_store, cx| {
5509 task_store.task_context_for_location(captured_task_variables, location, cx)
5510 })
5511 })
5512 }
5513
5514 pub fn spawn_nearest_task(
5515 &mut self,
5516 action: &SpawnNearestTask,
5517 window: &mut Window,
5518 cx: &mut Context<Self>,
5519 ) {
5520 let Some((workspace, _)) = self.workspace.clone() else {
5521 return;
5522 };
5523 let Some(project) = self.project.clone() else {
5524 return;
5525 };
5526
5527 // Try to find a closest, enclosing node using tree-sitter that has a
5528 // task
5529 let Some((buffer, buffer_row, tasks)) = self
5530 .find_enclosing_node_task(cx)
5531 // Or find the task that's closest in row-distance.
5532 .or_else(|| self.find_closest_task(cx))
5533 else {
5534 return;
5535 };
5536
5537 let reveal_strategy = action.reveal;
5538 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5539 cx.spawn_in(window, |_, mut cx| async move {
5540 let context = task_context.await?;
5541 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5542
5543 let resolved = resolved_task.resolved.as_mut()?;
5544 resolved.reveal = reveal_strategy;
5545
5546 workspace
5547 .update(&mut cx, |workspace, cx| {
5548 workspace::tasks::schedule_resolved_task(
5549 workspace,
5550 task_source_kind,
5551 resolved_task,
5552 false,
5553 cx,
5554 );
5555 })
5556 .ok()
5557 })
5558 .detach();
5559 }
5560
5561 fn find_closest_task(
5562 &mut self,
5563 cx: &mut Context<Self>,
5564 ) -> Option<(Entity<Buffer>, u32, Arc<RunnableTasks>)> {
5565 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5566
5567 let ((buffer_id, row), tasks) = self
5568 .tasks
5569 .iter()
5570 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5571
5572 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5573 let tasks = Arc::new(tasks.to_owned());
5574 Some((buffer, *row, tasks))
5575 }
5576
5577 fn find_enclosing_node_task(
5578 &mut self,
5579 cx: &mut Context<Self>,
5580 ) -> Option<(Entity<Buffer>, u32, Arc<RunnableTasks>)> {
5581 let snapshot = self.buffer.read(cx).snapshot(cx);
5582 let offset = self.selections.newest::<usize>(cx).head();
5583 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5584 let buffer_id = excerpt.buffer().remote_id();
5585
5586 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5587 let mut cursor = layer.node().walk();
5588
5589 while cursor.goto_first_child_for_byte(offset).is_some() {
5590 if cursor.node().end_byte() == offset {
5591 cursor.goto_next_sibling();
5592 }
5593 }
5594
5595 // Ascend to the smallest ancestor that contains the range and has a task.
5596 loop {
5597 let node = cursor.node();
5598 let node_range = node.byte_range();
5599 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5600
5601 // Check if this node contains our offset
5602 if node_range.start <= offset && node_range.end >= offset {
5603 // If it contains offset, check for task
5604 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5605 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5606 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5607 }
5608 }
5609
5610 if !cursor.goto_parent() {
5611 break;
5612 }
5613 }
5614 None
5615 }
5616
5617 fn render_run_indicator(
5618 &self,
5619 _style: &EditorStyle,
5620 is_active: bool,
5621 row: DisplayRow,
5622 cx: &mut Context<Self>,
5623 ) -> IconButton {
5624 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5625 .shape(ui::IconButtonShape::Square)
5626 .icon_size(IconSize::XSmall)
5627 .icon_color(Color::Muted)
5628 .toggle_state(is_active)
5629 .on_click(cx.listener(move |editor, _e, window, cx| {
5630 window.focus(&editor.focus_handle(cx));
5631 editor.toggle_code_actions(
5632 &ToggleCodeActions {
5633 deployed_from_indicator: Some(row),
5634 },
5635 window,
5636 cx,
5637 );
5638 }))
5639 }
5640
5641 pub fn context_menu_visible(&self) -> bool {
5642 !self.edit_prediction_preview_is_active()
5643 && self
5644 .context_menu
5645 .borrow()
5646 .as_ref()
5647 .map_or(false, |menu| menu.visible())
5648 }
5649
5650 fn context_menu_origin(&self) -> Option<ContextMenuOrigin> {
5651 self.context_menu
5652 .borrow()
5653 .as_ref()
5654 .map(|menu| menu.origin())
5655 }
5656
5657 fn edit_prediction_cursor_popover_height(&self) -> Pixels {
5658 px(30.)
5659 }
5660
5661 fn current_user_player_color(&self, cx: &mut App) -> PlayerColor {
5662 if self.read_only(cx) {
5663 cx.theme().players().read_only()
5664 } else {
5665 self.style.as_ref().unwrap().local_player
5666 }
5667 }
5668
5669 fn render_edit_prediction_accept_keybind(&self, window: &mut Window, cx: &App) -> Option<Div> {
5670 let accept_binding = self.accept_edit_prediction_keybind(window, cx);
5671 let accept_keystroke = accept_binding.keystroke()?;
5672
5673 let is_platform_style_mac = PlatformStyle::platform() == PlatformStyle::Mac;
5674
5675 let modifiers_color = if accept_keystroke.modifiers == window.modifiers() {
5676 Color::Accent
5677 } else {
5678 Color::Muted
5679 };
5680
5681 h_flex()
5682 .px_0p5()
5683 .when(is_platform_style_mac, |parent| parent.gap_0p5())
5684 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5685 .text_size(TextSize::XSmall.rems(cx))
5686 .child(h_flex().children(ui::render_modifiers(
5687 &accept_keystroke.modifiers,
5688 PlatformStyle::platform(),
5689 Some(modifiers_color),
5690 Some(IconSize::XSmall.rems().into()),
5691 true,
5692 )))
5693 .when(is_platform_style_mac, |parent| {
5694 parent.child(accept_keystroke.key.clone())
5695 })
5696 .when(!is_platform_style_mac, |parent| {
5697 parent.child(
5698 Key::new(
5699 util::capitalize(&accept_keystroke.key),
5700 Some(Color::Default),
5701 )
5702 .size(Some(IconSize::XSmall.rems().into())),
5703 )
5704 })
5705 .into()
5706 }
5707
5708 fn render_edit_prediction_line_popover(
5709 &self,
5710 label: impl Into<SharedString>,
5711 icon: Option<IconName>,
5712 window: &mut Window,
5713 cx: &App,
5714 ) -> Option<Div> {
5715 let bg_color = Self::edit_prediction_line_popover_bg_color(cx);
5716
5717 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5718
5719 let result = h_flex()
5720 .gap_1()
5721 .border_1()
5722 .rounded_lg()
5723 .shadow_sm()
5724 .bg(bg_color)
5725 .border_color(cx.theme().colors().text_accent.opacity(0.4))
5726 .py_0p5()
5727 .pl_1()
5728 .pr(padding_right)
5729 .children(self.render_edit_prediction_accept_keybind(window, cx))
5730 .child(Label::new(label).size(LabelSize::Small))
5731 .when_some(icon, |element, icon| {
5732 element.child(
5733 div()
5734 .mt(px(1.5))
5735 .child(Icon::new(icon).size(IconSize::Small)),
5736 )
5737 });
5738
5739 Some(result)
5740 }
5741
5742 fn edit_prediction_line_popover_bg_color(cx: &App) -> Hsla {
5743 let accent_color = cx.theme().colors().text_accent;
5744 let editor_bg_color = cx.theme().colors().editor_background;
5745 editor_bg_color.blend(accent_color.opacity(0.1))
5746 }
5747
5748 #[allow(clippy::too_many_arguments)]
5749 fn render_edit_prediction_cursor_popover(
5750 &self,
5751 min_width: Pixels,
5752 max_width: Pixels,
5753 cursor_point: Point,
5754 style: &EditorStyle,
5755 accept_keystroke: &gpui::Keystroke,
5756 _window: &Window,
5757 cx: &mut Context<Editor>,
5758 ) -> Option<AnyElement> {
5759 let provider = self.edit_prediction_provider.as_ref()?;
5760
5761 if provider.provider.needs_terms_acceptance(cx) {
5762 return Some(
5763 h_flex()
5764 .min_w(min_width)
5765 .flex_1()
5766 .px_2()
5767 .py_1()
5768 .gap_3()
5769 .elevation_2(cx)
5770 .hover(|style| style.bg(cx.theme().colors().element_hover))
5771 .id("accept-terms")
5772 .cursor_pointer()
5773 .on_mouse_down(MouseButton::Left, |_, window, _| window.prevent_default())
5774 .on_click(cx.listener(|this, _event, window, cx| {
5775 cx.stop_propagation();
5776 this.report_editor_event("Edit Prediction Provider ToS Clicked", None, cx);
5777 window.dispatch_action(
5778 zed_actions::OpenZedPredictOnboarding.boxed_clone(),
5779 cx,
5780 );
5781 }))
5782 .child(
5783 h_flex()
5784 .flex_1()
5785 .gap_2()
5786 .child(Icon::new(IconName::ZedPredict))
5787 .child(Label::new("Accept Terms of Service"))
5788 .child(div().w_full())
5789 .child(
5790 Icon::new(IconName::ArrowUpRight)
5791 .color(Color::Muted)
5792 .size(IconSize::Small),
5793 )
5794 .into_any_element(),
5795 )
5796 .into_any(),
5797 );
5798 }
5799
5800 let is_refreshing = provider.provider.is_refreshing(cx);
5801
5802 fn pending_completion_container() -> Div {
5803 h_flex()
5804 .h_full()
5805 .flex_1()
5806 .gap_2()
5807 .child(Icon::new(IconName::ZedPredict))
5808 }
5809
5810 let completion = match &self.active_inline_completion {
5811 Some(completion) => match &completion.completion {
5812 InlineCompletion::Move {
5813 target, snapshot, ..
5814 } if !self.has_visible_completions_menu() => {
5815 use text::ToPoint as _;
5816
5817 return Some(
5818 h_flex()
5819 .px_2()
5820 .py_1()
5821 .elevation_2(cx)
5822 .border_color(cx.theme().colors().border)
5823 .rounded_tl(px(0.))
5824 .gap_2()
5825 .child(
5826 if target.text_anchor.to_point(&snapshot).row > cursor_point.row {
5827 Icon::new(IconName::ZedPredictDown)
5828 } else {
5829 Icon::new(IconName::ZedPredictUp)
5830 },
5831 )
5832 .child(Label::new("Hold").size(LabelSize::Small))
5833 .child(h_flex().children(ui::render_modifiers(
5834 &accept_keystroke.modifiers,
5835 PlatformStyle::platform(),
5836 Some(Color::Default),
5837 Some(IconSize::Small.rems().into()),
5838 false,
5839 )))
5840 .into_any(),
5841 );
5842 }
5843 _ => self.render_edit_prediction_cursor_popover_preview(
5844 completion,
5845 cursor_point,
5846 style,
5847 cx,
5848 )?,
5849 },
5850
5851 None if is_refreshing => match &self.stale_inline_completion_in_menu {
5852 Some(stale_completion) => self.render_edit_prediction_cursor_popover_preview(
5853 stale_completion,
5854 cursor_point,
5855 style,
5856 cx,
5857 )?,
5858
5859 None => {
5860 pending_completion_container().child(Label::new("...").size(LabelSize::Small))
5861 }
5862 },
5863
5864 None => pending_completion_container().child(Label::new("No Prediction")),
5865 };
5866
5867 let completion = if is_refreshing {
5868 completion
5869 .with_animation(
5870 "loading-completion",
5871 Animation::new(Duration::from_secs(2))
5872 .repeat()
5873 .with_easing(pulsating_between(0.4, 0.8)),
5874 |label, delta| label.opacity(delta),
5875 )
5876 .into_any_element()
5877 } else {
5878 completion.into_any_element()
5879 };
5880
5881 let has_completion = self.active_inline_completion.is_some();
5882
5883 let is_platform_style_mac = PlatformStyle::platform() == PlatformStyle::Mac;
5884 Some(
5885 h_flex()
5886 .min_w(min_width)
5887 .max_w(max_width)
5888 .flex_1()
5889 .elevation_2(cx)
5890 .border_color(cx.theme().colors().border)
5891 .child(
5892 div()
5893 .flex_1()
5894 .py_1()
5895 .px_2()
5896 .overflow_hidden()
5897 .child(completion),
5898 )
5899 .child(
5900 h_flex()
5901 .h_full()
5902 .border_l_1()
5903 .rounded_r_lg()
5904 .border_color(cx.theme().colors().border)
5905 .bg(Self::edit_prediction_line_popover_bg_color(cx))
5906 .gap_1()
5907 .py_1()
5908 .px_2()
5909 .child(
5910 h_flex()
5911 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5912 .when(is_platform_style_mac, |parent| parent.gap_1())
5913 .child(h_flex().children(ui::render_modifiers(
5914 &accept_keystroke.modifiers,
5915 PlatformStyle::platform(),
5916 Some(if !has_completion {
5917 Color::Muted
5918 } else {
5919 Color::Default
5920 }),
5921 None,
5922 false,
5923 ))),
5924 )
5925 .child(Label::new("Preview").into_any_element())
5926 .opacity(if has_completion { 1.0 } else { 0.4 }),
5927 )
5928 .into_any(),
5929 )
5930 }
5931
5932 fn render_edit_prediction_cursor_popover_preview(
5933 &self,
5934 completion: &InlineCompletionState,
5935 cursor_point: Point,
5936 style: &EditorStyle,
5937 cx: &mut Context<Editor>,
5938 ) -> Option<Div> {
5939 use text::ToPoint as _;
5940
5941 fn render_relative_row_jump(
5942 prefix: impl Into<String>,
5943 current_row: u32,
5944 target_row: u32,
5945 ) -> Div {
5946 let (row_diff, arrow) = if target_row < current_row {
5947 (current_row - target_row, IconName::ArrowUp)
5948 } else {
5949 (target_row - current_row, IconName::ArrowDown)
5950 };
5951
5952 h_flex()
5953 .child(
5954 Label::new(format!("{}{}", prefix.into(), row_diff))
5955 .color(Color::Muted)
5956 .size(LabelSize::Small),
5957 )
5958 .child(Icon::new(arrow).color(Color::Muted).size(IconSize::Small))
5959 }
5960
5961 match &completion.completion {
5962 InlineCompletion::Move {
5963 target, snapshot, ..
5964 } => Some(
5965 h_flex()
5966 .px_2()
5967 .gap_2()
5968 .flex_1()
5969 .child(
5970 if target.text_anchor.to_point(&snapshot).row > cursor_point.row {
5971 Icon::new(IconName::ZedPredictDown)
5972 } else {
5973 Icon::new(IconName::ZedPredictUp)
5974 },
5975 )
5976 .child(Label::new("Jump to Edit")),
5977 ),
5978
5979 InlineCompletion::Edit {
5980 edits,
5981 edit_preview,
5982 snapshot,
5983 display_mode: _,
5984 } => {
5985 let first_edit_row = edits.first()?.0.start.text_anchor.to_point(&snapshot).row;
5986
5987 let highlighted_edits = crate::inline_completion_edit_text(
5988 &snapshot,
5989 &edits,
5990 edit_preview.as_ref()?,
5991 true,
5992 cx,
5993 );
5994
5995 let len_total = highlighted_edits.text.len();
5996 let first_line = &highlighted_edits.text
5997 [..highlighted_edits.text.find('\n').unwrap_or(len_total)];
5998 let first_line_len = first_line.len();
5999
6000 let first_highlight_start = highlighted_edits
6001 .highlights
6002 .first()
6003 .map_or(0, |(range, _)| range.start);
6004 let drop_prefix_len = first_line
6005 .char_indices()
6006 .find(|(_, c)| !c.is_whitespace())
6007 .map_or(first_highlight_start, |(ix, _)| {
6008 ix.min(first_highlight_start)
6009 });
6010
6011 let preview_text = &first_line[drop_prefix_len..];
6012 let preview_len = preview_text.len();
6013 let highlights = highlighted_edits
6014 .highlights
6015 .into_iter()
6016 .take_until(|(range, _)| range.start > first_line_len)
6017 .map(|(range, style)| {
6018 (
6019 range.start - drop_prefix_len
6020 ..(range.end - drop_prefix_len).min(preview_len),
6021 style,
6022 )
6023 });
6024
6025 let styled_text = gpui::StyledText::new(SharedString::new(preview_text))
6026 .with_highlights(&style.text, highlights);
6027
6028 let preview = h_flex()
6029 .gap_1()
6030 .min_w_16()
6031 .child(styled_text)
6032 .when(len_total > first_line_len, |parent| parent.child("…"));
6033
6034 let left = if first_edit_row != cursor_point.row {
6035 render_relative_row_jump("", cursor_point.row, first_edit_row)
6036 .into_any_element()
6037 } else {
6038 Icon::new(IconName::ZedPredict).into_any_element()
6039 };
6040
6041 Some(
6042 h_flex()
6043 .h_full()
6044 .flex_1()
6045 .gap_2()
6046 .pr_1()
6047 .overflow_x_hidden()
6048 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
6049 .child(left)
6050 .child(preview),
6051 )
6052 }
6053 }
6054 }
6055
6056 fn render_context_menu(
6057 &self,
6058 style: &EditorStyle,
6059 max_height_in_lines: u32,
6060 y_flipped: bool,
6061 window: &mut Window,
6062 cx: &mut Context<Editor>,
6063 ) -> Option<AnyElement> {
6064 let menu = self.context_menu.borrow();
6065 let menu = menu.as_ref()?;
6066 if !menu.visible() {
6067 return None;
6068 };
6069 Some(menu.render(style, max_height_in_lines, y_flipped, window, cx))
6070 }
6071
6072 fn render_context_menu_aside(
6073 &self,
6074 style: &EditorStyle,
6075 max_size: Size<Pixels>,
6076 cx: &mut Context<Editor>,
6077 ) -> Option<AnyElement> {
6078 self.context_menu.borrow().as_ref().and_then(|menu| {
6079 if menu.visible() {
6080 menu.render_aside(
6081 style,
6082 max_size,
6083 self.workspace.as_ref().map(|(w, _)| w.clone()),
6084 cx,
6085 )
6086 } else {
6087 None
6088 }
6089 })
6090 }
6091
6092 fn hide_context_menu(
6093 &mut self,
6094 window: &mut Window,
6095 cx: &mut Context<Self>,
6096 ) -> Option<CodeContextMenu> {
6097 cx.notify();
6098 self.completion_tasks.clear();
6099 let context_menu = self.context_menu.borrow_mut().take();
6100 self.stale_inline_completion_in_menu.take();
6101 self.update_visible_inline_completion(window, cx);
6102 context_menu
6103 }
6104
6105 fn show_snippet_choices(
6106 &mut self,
6107 choices: &Vec<String>,
6108 selection: Range<Anchor>,
6109 cx: &mut Context<Self>,
6110 ) {
6111 if selection.start.buffer_id.is_none() {
6112 return;
6113 }
6114 let buffer_id = selection.start.buffer_id.unwrap();
6115 let buffer = self.buffer().read(cx).buffer(buffer_id);
6116 let id = post_inc(&mut self.next_completion_id);
6117
6118 if let Some(buffer) = buffer {
6119 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
6120 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
6121 ));
6122 }
6123 }
6124
6125 pub fn insert_snippet(
6126 &mut self,
6127 insertion_ranges: &[Range<usize>],
6128 snippet: Snippet,
6129 window: &mut Window,
6130 cx: &mut Context<Self>,
6131 ) -> Result<()> {
6132 struct Tabstop<T> {
6133 is_end_tabstop: bool,
6134 ranges: Vec<Range<T>>,
6135 choices: Option<Vec<String>>,
6136 }
6137
6138 let tabstops = self.buffer.update(cx, |buffer, cx| {
6139 let snippet_text: Arc<str> = snippet.text.clone().into();
6140 buffer.edit(
6141 insertion_ranges
6142 .iter()
6143 .cloned()
6144 .map(|range| (range, snippet_text.clone())),
6145 Some(AutoindentMode::EachLine),
6146 cx,
6147 );
6148
6149 let snapshot = &*buffer.read(cx);
6150 let snippet = &snippet;
6151 snippet
6152 .tabstops
6153 .iter()
6154 .map(|tabstop| {
6155 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
6156 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
6157 });
6158 let mut tabstop_ranges = tabstop
6159 .ranges
6160 .iter()
6161 .flat_map(|tabstop_range| {
6162 let mut delta = 0_isize;
6163 insertion_ranges.iter().map(move |insertion_range| {
6164 let insertion_start = insertion_range.start as isize + delta;
6165 delta +=
6166 snippet.text.len() as isize - insertion_range.len() as isize;
6167
6168 let start = ((insertion_start + tabstop_range.start) as usize)
6169 .min(snapshot.len());
6170 let end = ((insertion_start + tabstop_range.end) as usize)
6171 .min(snapshot.len());
6172 snapshot.anchor_before(start)..snapshot.anchor_after(end)
6173 })
6174 })
6175 .collect::<Vec<_>>();
6176 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
6177
6178 Tabstop {
6179 is_end_tabstop,
6180 ranges: tabstop_ranges,
6181 choices: tabstop.choices.clone(),
6182 }
6183 })
6184 .collect::<Vec<_>>()
6185 });
6186 if let Some(tabstop) = tabstops.first() {
6187 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6188 s.select_ranges(tabstop.ranges.iter().cloned());
6189 });
6190
6191 if let Some(choices) = &tabstop.choices {
6192 if let Some(selection) = tabstop.ranges.first() {
6193 self.show_snippet_choices(choices, selection.clone(), cx)
6194 }
6195 }
6196
6197 // If we're already at the last tabstop and it's at the end of the snippet,
6198 // we're done, we don't need to keep the state around.
6199 if !tabstop.is_end_tabstop {
6200 let choices = tabstops
6201 .iter()
6202 .map(|tabstop| tabstop.choices.clone())
6203 .collect();
6204
6205 let ranges = tabstops
6206 .into_iter()
6207 .map(|tabstop| tabstop.ranges)
6208 .collect::<Vec<_>>();
6209
6210 self.snippet_stack.push(SnippetState {
6211 active_index: 0,
6212 ranges,
6213 choices,
6214 });
6215 }
6216
6217 // Check whether the just-entered snippet ends with an auto-closable bracket.
6218 if self.autoclose_regions.is_empty() {
6219 let snapshot = self.buffer.read(cx).snapshot(cx);
6220 for selection in &mut self.selections.all::<Point>(cx) {
6221 let selection_head = selection.head();
6222 let Some(scope) = snapshot.language_scope_at(selection_head) else {
6223 continue;
6224 };
6225
6226 let mut bracket_pair = None;
6227 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
6228 let prev_chars = snapshot
6229 .reversed_chars_at(selection_head)
6230 .collect::<String>();
6231 for (pair, enabled) in scope.brackets() {
6232 if enabled
6233 && pair.close
6234 && prev_chars.starts_with(pair.start.as_str())
6235 && next_chars.starts_with(pair.end.as_str())
6236 {
6237 bracket_pair = Some(pair.clone());
6238 break;
6239 }
6240 }
6241 if let Some(pair) = bracket_pair {
6242 let start = snapshot.anchor_after(selection_head);
6243 let end = snapshot.anchor_after(selection_head);
6244 self.autoclose_regions.push(AutocloseRegion {
6245 selection_id: selection.id,
6246 range: start..end,
6247 pair,
6248 });
6249 }
6250 }
6251 }
6252 }
6253 Ok(())
6254 }
6255
6256 pub fn move_to_next_snippet_tabstop(
6257 &mut self,
6258 window: &mut Window,
6259 cx: &mut Context<Self>,
6260 ) -> bool {
6261 self.move_to_snippet_tabstop(Bias::Right, window, cx)
6262 }
6263
6264 pub fn move_to_prev_snippet_tabstop(
6265 &mut self,
6266 window: &mut Window,
6267 cx: &mut Context<Self>,
6268 ) -> bool {
6269 self.move_to_snippet_tabstop(Bias::Left, window, cx)
6270 }
6271
6272 pub fn move_to_snippet_tabstop(
6273 &mut self,
6274 bias: Bias,
6275 window: &mut Window,
6276 cx: &mut Context<Self>,
6277 ) -> bool {
6278 if let Some(mut snippet) = self.snippet_stack.pop() {
6279 match bias {
6280 Bias::Left => {
6281 if snippet.active_index > 0 {
6282 snippet.active_index -= 1;
6283 } else {
6284 self.snippet_stack.push(snippet);
6285 return false;
6286 }
6287 }
6288 Bias::Right => {
6289 if snippet.active_index + 1 < snippet.ranges.len() {
6290 snippet.active_index += 1;
6291 } else {
6292 self.snippet_stack.push(snippet);
6293 return false;
6294 }
6295 }
6296 }
6297 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
6298 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6299 s.select_anchor_ranges(current_ranges.iter().cloned())
6300 });
6301
6302 if let Some(choices) = &snippet.choices[snippet.active_index] {
6303 if let Some(selection) = current_ranges.first() {
6304 self.show_snippet_choices(&choices, selection.clone(), cx);
6305 }
6306 }
6307
6308 // If snippet state is not at the last tabstop, push it back on the stack
6309 if snippet.active_index + 1 < snippet.ranges.len() {
6310 self.snippet_stack.push(snippet);
6311 }
6312 return true;
6313 }
6314 }
6315
6316 false
6317 }
6318
6319 pub fn clear(&mut self, window: &mut Window, cx: &mut Context<Self>) {
6320 self.transact(window, cx, |this, window, cx| {
6321 this.select_all(&SelectAll, window, cx);
6322 this.insert("", window, cx);
6323 });
6324 }
6325
6326 pub fn backspace(&mut self, _: &Backspace, window: &mut Window, cx: &mut Context<Self>) {
6327 self.transact(window, cx, |this, window, cx| {
6328 this.select_autoclose_pair(window, cx);
6329 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
6330 if !this.linked_edit_ranges.is_empty() {
6331 let selections = this.selections.all::<MultiBufferPoint>(cx);
6332 let snapshot = this.buffer.read(cx).snapshot(cx);
6333
6334 for selection in selections.iter() {
6335 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6336 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6337 if selection_start.buffer_id != selection_end.buffer_id {
6338 continue;
6339 }
6340 if let Some(ranges) =
6341 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6342 {
6343 for (buffer, entries) in ranges {
6344 linked_ranges.entry(buffer).or_default().extend(entries);
6345 }
6346 }
6347 }
6348 }
6349
6350 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6351 if !this.selections.line_mode {
6352 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6353 for selection in &mut selections {
6354 if selection.is_empty() {
6355 let old_head = selection.head();
6356 let mut new_head =
6357 movement::left(&display_map, old_head.to_display_point(&display_map))
6358 .to_point(&display_map);
6359 if let Some((buffer, line_buffer_range)) = display_map
6360 .buffer_snapshot
6361 .buffer_line_for_row(MultiBufferRow(old_head.row))
6362 {
6363 let indent_size =
6364 buffer.indent_size_for_line(line_buffer_range.start.row);
6365 let indent_len = match indent_size.kind {
6366 IndentKind::Space => {
6367 buffer.settings_at(line_buffer_range.start, cx).tab_size
6368 }
6369 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6370 };
6371 if old_head.column <= indent_size.len && old_head.column > 0 {
6372 let indent_len = indent_len.get();
6373 new_head = cmp::min(
6374 new_head,
6375 MultiBufferPoint::new(
6376 old_head.row,
6377 ((old_head.column - 1) / indent_len) * indent_len,
6378 ),
6379 );
6380 }
6381 }
6382
6383 selection.set_head(new_head, SelectionGoal::None);
6384 }
6385 }
6386 }
6387
6388 this.signature_help_state.set_backspace_pressed(true);
6389 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6390 s.select(selections)
6391 });
6392 this.insert("", window, cx);
6393 let empty_str: Arc<str> = Arc::from("");
6394 for (buffer, edits) in linked_ranges {
6395 let snapshot = buffer.read(cx).snapshot();
6396 use text::ToPoint as TP;
6397
6398 let edits = edits
6399 .into_iter()
6400 .map(|range| {
6401 let end_point = TP::to_point(&range.end, &snapshot);
6402 let mut start_point = TP::to_point(&range.start, &snapshot);
6403
6404 if end_point == start_point {
6405 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6406 .saturating_sub(1);
6407 start_point =
6408 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
6409 };
6410
6411 (start_point..end_point, empty_str.clone())
6412 })
6413 .sorted_by_key(|(range, _)| range.start)
6414 .collect::<Vec<_>>();
6415 buffer.update(cx, |this, cx| {
6416 this.edit(edits, None, cx);
6417 })
6418 }
6419 this.refresh_inline_completion(true, false, window, cx);
6420 linked_editing_ranges::refresh_linked_ranges(this, window, cx);
6421 });
6422 }
6423
6424 pub fn delete(&mut self, _: &Delete, window: &mut Window, cx: &mut Context<Self>) {
6425 self.transact(window, cx, |this, window, cx| {
6426 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6427 let line_mode = s.line_mode;
6428 s.move_with(|map, selection| {
6429 if selection.is_empty() && !line_mode {
6430 let cursor = movement::right(map, selection.head());
6431 selection.end = cursor;
6432 selection.reversed = true;
6433 selection.goal = SelectionGoal::None;
6434 }
6435 })
6436 });
6437 this.insert("", window, cx);
6438 this.refresh_inline_completion(true, false, window, cx);
6439 });
6440 }
6441
6442 pub fn tab_prev(&mut self, _: &TabPrev, window: &mut Window, cx: &mut Context<Self>) {
6443 if self.move_to_prev_snippet_tabstop(window, cx) {
6444 return;
6445 }
6446
6447 self.outdent(&Outdent, window, cx);
6448 }
6449
6450 pub fn tab(&mut self, _: &Tab, window: &mut Window, cx: &mut Context<Self>) {
6451 if self.move_to_next_snippet_tabstop(window, cx) || self.read_only(cx) {
6452 return;
6453 }
6454
6455 let mut selections = self.selections.all_adjusted(cx);
6456 let buffer = self.buffer.read(cx);
6457 let snapshot = buffer.snapshot(cx);
6458 let rows_iter = selections.iter().map(|s| s.head().row);
6459 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6460
6461 let mut edits = Vec::new();
6462 let mut prev_edited_row = 0;
6463 let mut row_delta = 0;
6464 for selection in &mut selections {
6465 if selection.start.row != prev_edited_row {
6466 row_delta = 0;
6467 }
6468 prev_edited_row = selection.end.row;
6469
6470 // If the selection is non-empty, then increase the indentation of the selected lines.
6471 if !selection.is_empty() {
6472 row_delta =
6473 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6474 continue;
6475 }
6476
6477 // If the selection is empty and the cursor is in the leading whitespace before the
6478 // suggested indentation, then auto-indent the line.
6479 let cursor = selection.head();
6480 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6481 if let Some(suggested_indent) =
6482 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6483 {
6484 if cursor.column < suggested_indent.len
6485 && cursor.column <= current_indent.len
6486 && current_indent.len <= suggested_indent.len
6487 {
6488 selection.start = Point::new(cursor.row, suggested_indent.len);
6489 selection.end = selection.start;
6490 if row_delta == 0 {
6491 edits.extend(Buffer::edit_for_indent_size_adjustment(
6492 cursor.row,
6493 current_indent,
6494 suggested_indent,
6495 ));
6496 row_delta = suggested_indent.len - current_indent.len;
6497 }
6498 continue;
6499 }
6500 }
6501
6502 // Otherwise, insert a hard or soft tab.
6503 let settings = buffer.settings_at(cursor, cx);
6504 let tab_size = if settings.hard_tabs {
6505 IndentSize::tab()
6506 } else {
6507 let tab_size = settings.tab_size.get();
6508 let char_column = snapshot
6509 .text_for_range(Point::new(cursor.row, 0)..cursor)
6510 .flat_map(str::chars)
6511 .count()
6512 + row_delta as usize;
6513 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6514 IndentSize::spaces(chars_to_next_tab_stop)
6515 };
6516 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6517 selection.end = selection.start;
6518 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6519 row_delta += tab_size.len;
6520 }
6521
6522 self.transact(window, cx, |this, window, cx| {
6523 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6524 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6525 s.select(selections)
6526 });
6527 this.refresh_inline_completion(true, false, window, cx);
6528 });
6529 }
6530
6531 pub fn indent(&mut self, _: &Indent, window: &mut Window, cx: &mut Context<Self>) {
6532 if self.read_only(cx) {
6533 return;
6534 }
6535 let mut selections = self.selections.all::<Point>(cx);
6536 let mut prev_edited_row = 0;
6537 let mut row_delta = 0;
6538 let mut edits = Vec::new();
6539 let buffer = self.buffer.read(cx);
6540 let snapshot = buffer.snapshot(cx);
6541 for selection in &mut selections {
6542 if selection.start.row != prev_edited_row {
6543 row_delta = 0;
6544 }
6545 prev_edited_row = selection.end.row;
6546
6547 row_delta =
6548 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6549 }
6550
6551 self.transact(window, cx, |this, window, cx| {
6552 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6553 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6554 s.select(selections)
6555 });
6556 });
6557 }
6558
6559 fn indent_selection(
6560 buffer: &MultiBuffer,
6561 snapshot: &MultiBufferSnapshot,
6562 selection: &mut Selection<Point>,
6563 edits: &mut Vec<(Range<Point>, String)>,
6564 delta_for_start_row: u32,
6565 cx: &App,
6566 ) -> u32 {
6567 let settings = buffer.settings_at(selection.start, cx);
6568 let tab_size = settings.tab_size.get();
6569 let indent_kind = if settings.hard_tabs {
6570 IndentKind::Tab
6571 } else {
6572 IndentKind::Space
6573 };
6574 let mut start_row = selection.start.row;
6575 let mut end_row = selection.end.row + 1;
6576
6577 // If a selection ends at the beginning of a line, don't indent
6578 // that last line.
6579 if selection.end.column == 0 && selection.end.row > selection.start.row {
6580 end_row -= 1;
6581 }
6582
6583 // Avoid re-indenting a row that has already been indented by a
6584 // previous selection, but still update this selection's column
6585 // to reflect that indentation.
6586 if delta_for_start_row > 0 {
6587 start_row += 1;
6588 selection.start.column += delta_for_start_row;
6589 if selection.end.row == selection.start.row {
6590 selection.end.column += delta_for_start_row;
6591 }
6592 }
6593
6594 let mut delta_for_end_row = 0;
6595 let has_multiple_rows = start_row + 1 != end_row;
6596 for row in start_row..end_row {
6597 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6598 let indent_delta = match (current_indent.kind, indent_kind) {
6599 (IndentKind::Space, IndentKind::Space) => {
6600 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6601 IndentSize::spaces(columns_to_next_tab_stop)
6602 }
6603 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6604 (_, IndentKind::Tab) => IndentSize::tab(),
6605 };
6606
6607 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6608 0
6609 } else {
6610 selection.start.column
6611 };
6612 let row_start = Point::new(row, start);
6613 edits.push((
6614 row_start..row_start,
6615 indent_delta.chars().collect::<String>(),
6616 ));
6617
6618 // Update this selection's endpoints to reflect the indentation.
6619 if row == selection.start.row {
6620 selection.start.column += indent_delta.len;
6621 }
6622 if row == selection.end.row {
6623 selection.end.column += indent_delta.len;
6624 delta_for_end_row = indent_delta.len;
6625 }
6626 }
6627
6628 if selection.start.row == selection.end.row {
6629 delta_for_start_row + delta_for_end_row
6630 } else {
6631 delta_for_end_row
6632 }
6633 }
6634
6635 pub fn outdent(&mut self, _: &Outdent, window: &mut Window, cx: &mut Context<Self>) {
6636 if self.read_only(cx) {
6637 return;
6638 }
6639 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6640 let selections = self.selections.all::<Point>(cx);
6641 let mut deletion_ranges = Vec::new();
6642 let mut last_outdent = None;
6643 {
6644 let buffer = self.buffer.read(cx);
6645 let snapshot = buffer.snapshot(cx);
6646 for selection in &selections {
6647 let settings = buffer.settings_at(selection.start, cx);
6648 let tab_size = settings.tab_size.get();
6649 let mut rows = selection.spanned_rows(false, &display_map);
6650
6651 // Avoid re-outdenting a row that has already been outdented by a
6652 // previous selection.
6653 if let Some(last_row) = last_outdent {
6654 if last_row == rows.start {
6655 rows.start = rows.start.next_row();
6656 }
6657 }
6658 let has_multiple_rows = rows.len() > 1;
6659 for row in rows.iter_rows() {
6660 let indent_size = snapshot.indent_size_for_line(row);
6661 if indent_size.len > 0 {
6662 let deletion_len = match indent_size.kind {
6663 IndentKind::Space => {
6664 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6665 if columns_to_prev_tab_stop == 0 {
6666 tab_size
6667 } else {
6668 columns_to_prev_tab_stop
6669 }
6670 }
6671 IndentKind::Tab => 1,
6672 };
6673 let start = if has_multiple_rows
6674 || deletion_len > selection.start.column
6675 || indent_size.len < selection.start.column
6676 {
6677 0
6678 } else {
6679 selection.start.column - deletion_len
6680 };
6681 deletion_ranges.push(
6682 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6683 );
6684 last_outdent = Some(row);
6685 }
6686 }
6687 }
6688 }
6689
6690 self.transact(window, cx, |this, window, cx| {
6691 this.buffer.update(cx, |buffer, cx| {
6692 let empty_str: Arc<str> = Arc::default();
6693 buffer.edit(
6694 deletion_ranges
6695 .into_iter()
6696 .map(|range| (range, empty_str.clone())),
6697 None,
6698 cx,
6699 );
6700 });
6701 let selections = this.selections.all::<usize>(cx);
6702 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6703 s.select(selections)
6704 });
6705 });
6706 }
6707
6708 pub fn autoindent(&mut self, _: &AutoIndent, window: &mut Window, cx: &mut Context<Self>) {
6709 if self.read_only(cx) {
6710 return;
6711 }
6712 let selections = self
6713 .selections
6714 .all::<usize>(cx)
6715 .into_iter()
6716 .map(|s| s.range());
6717
6718 self.transact(window, cx, |this, window, cx| {
6719 this.buffer.update(cx, |buffer, cx| {
6720 buffer.autoindent_ranges(selections, cx);
6721 });
6722 let selections = this.selections.all::<usize>(cx);
6723 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6724 s.select(selections)
6725 });
6726 });
6727 }
6728
6729 pub fn delete_line(&mut self, _: &DeleteLine, window: &mut Window, cx: &mut Context<Self>) {
6730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6731 let selections = self.selections.all::<Point>(cx);
6732
6733 let mut new_cursors = Vec::new();
6734 let mut edit_ranges = Vec::new();
6735 let mut selections = selections.iter().peekable();
6736 while let Some(selection) = selections.next() {
6737 let mut rows = selection.spanned_rows(false, &display_map);
6738 let goal_display_column = selection.head().to_display_point(&display_map).column();
6739
6740 // Accumulate contiguous regions of rows that we want to delete.
6741 while let Some(next_selection) = selections.peek() {
6742 let next_rows = next_selection.spanned_rows(false, &display_map);
6743 if next_rows.start <= rows.end {
6744 rows.end = next_rows.end;
6745 selections.next().unwrap();
6746 } else {
6747 break;
6748 }
6749 }
6750
6751 let buffer = &display_map.buffer_snapshot;
6752 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6753 let edit_end;
6754 let cursor_buffer_row;
6755 if buffer.max_point().row >= rows.end.0 {
6756 // If there's a line after the range, delete the \n from the end of the row range
6757 // and position the cursor on the next line.
6758 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6759 cursor_buffer_row = rows.end;
6760 } else {
6761 // If there isn't a line after the range, delete the \n from the line before the
6762 // start of the row range and position the cursor there.
6763 edit_start = edit_start.saturating_sub(1);
6764 edit_end = buffer.len();
6765 cursor_buffer_row = rows.start.previous_row();
6766 }
6767
6768 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6769 *cursor.column_mut() =
6770 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6771
6772 new_cursors.push((
6773 selection.id,
6774 buffer.anchor_after(cursor.to_point(&display_map)),
6775 ));
6776 edit_ranges.push(edit_start..edit_end);
6777 }
6778
6779 self.transact(window, cx, |this, window, cx| {
6780 let buffer = this.buffer.update(cx, |buffer, cx| {
6781 let empty_str: Arc<str> = Arc::default();
6782 buffer.edit(
6783 edit_ranges
6784 .into_iter()
6785 .map(|range| (range, empty_str.clone())),
6786 None,
6787 cx,
6788 );
6789 buffer.snapshot(cx)
6790 });
6791 let new_selections = new_cursors
6792 .into_iter()
6793 .map(|(id, cursor)| {
6794 let cursor = cursor.to_point(&buffer);
6795 Selection {
6796 id,
6797 start: cursor,
6798 end: cursor,
6799 reversed: false,
6800 goal: SelectionGoal::None,
6801 }
6802 })
6803 .collect();
6804
6805 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6806 s.select(new_selections);
6807 });
6808 });
6809 }
6810
6811 pub fn join_lines_impl(
6812 &mut self,
6813 insert_whitespace: bool,
6814 window: &mut Window,
6815 cx: &mut Context<Self>,
6816 ) {
6817 if self.read_only(cx) {
6818 return;
6819 }
6820 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6821 for selection in self.selections.all::<Point>(cx) {
6822 let start = MultiBufferRow(selection.start.row);
6823 // Treat single line selections as if they include the next line. Otherwise this action
6824 // would do nothing for single line selections individual cursors.
6825 let end = if selection.start.row == selection.end.row {
6826 MultiBufferRow(selection.start.row + 1)
6827 } else {
6828 MultiBufferRow(selection.end.row)
6829 };
6830
6831 if let Some(last_row_range) = row_ranges.last_mut() {
6832 if start <= last_row_range.end {
6833 last_row_range.end = end;
6834 continue;
6835 }
6836 }
6837 row_ranges.push(start..end);
6838 }
6839
6840 let snapshot = self.buffer.read(cx).snapshot(cx);
6841 let mut cursor_positions = Vec::new();
6842 for row_range in &row_ranges {
6843 let anchor = snapshot.anchor_before(Point::new(
6844 row_range.end.previous_row().0,
6845 snapshot.line_len(row_range.end.previous_row()),
6846 ));
6847 cursor_positions.push(anchor..anchor);
6848 }
6849
6850 self.transact(window, cx, |this, window, cx| {
6851 for row_range in row_ranges.into_iter().rev() {
6852 for row in row_range.iter_rows().rev() {
6853 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6854 let next_line_row = row.next_row();
6855 let indent = snapshot.indent_size_for_line(next_line_row);
6856 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6857
6858 let replace =
6859 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
6860 " "
6861 } else {
6862 ""
6863 };
6864
6865 this.buffer.update(cx, |buffer, cx| {
6866 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6867 });
6868 }
6869 }
6870
6871 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6872 s.select_anchor_ranges(cursor_positions)
6873 });
6874 });
6875 }
6876
6877 pub fn join_lines(&mut self, _: &JoinLines, window: &mut Window, cx: &mut Context<Self>) {
6878 self.join_lines_impl(true, window, cx);
6879 }
6880
6881 pub fn sort_lines_case_sensitive(
6882 &mut self,
6883 _: &SortLinesCaseSensitive,
6884 window: &mut Window,
6885 cx: &mut Context<Self>,
6886 ) {
6887 self.manipulate_lines(window, cx, |lines| lines.sort())
6888 }
6889
6890 pub fn sort_lines_case_insensitive(
6891 &mut self,
6892 _: &SortLinesCaseInsensitive,
6893 window: &mut Window,
6894 cx: &mut Context<Self>,
6895 ) {
6896 self.manipulate_lines(window, cx, |lines| {
6897 lines.sort_by_key(|line| line.to_lowercase())
6898 })
6899 }
6900
6901 pub fn unique_lines_case_insensitive(
6902 &mut self,
6903 _: &UniqueLinesCaseInsensitive,
6904 window: &mut Window,
6905 cx: &mut Context<Self>,
6906 ) {
6907 self.manipulate_lines(window, cx, |lines| {
6908 let mut seen = HashSet::default();
6909 lines.retain(|line| seen.insert(line.to_lowercase()));
6910 })
6911 }
6912
6913 pub fn unique_lines_case_sensitive(
6914 &mut self,
6915 _: &UniqueLinesCaseSensitive,
6916 window: &mut Window,
6917 cx: &mut Context<Self>,
6918 ) {
6919 self.manipulate_lines(window, cx, |lines| {
6920 let mut seen = HashSet::default();
6921 lines.retain(|line| seen.insert(*line));
6922 })
6923 }
6924
6925 pub fn revert_file(&mut self, _: &RevertFile, window: &mut Window, cx: &mut Context<Self>) {
6926 let mut revert_changes = HashMap::default();
6927 let snapshot = self.snapshot(window, cx);
6928 for hunk in snapshot
6929 .hunks_for_ranges(Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter())
6930 {
6931 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6932 }
6933 if !revert_changes.is_empty() {
6934 self.transact(window, cx, |editor, window, cx| {
6935 editor.revert(revert_changes, window, cx);
6936 });
6937 }
6938 }
6939
6940 pub fn reload_file(&mut self, _: &ReloadFile, window: &mut Window, cx: &mut Context<Self>) {
6941 let Some(project) = self.project.clone() else {
6942 return;
6943 };
6944 self.reload(project, window, cx)
6945 .detach_and_notify_err(window, cx);
6946 }
6947
6948 pub fn revert_selected_hunks(
6949 &mut self,
6950 _: &RevertSelectedHunks,
6951 window: &mut Window,
6952 cx: &mut Context<Self>,
6953 ) {
6954 let selections = self.selections.all(cx).into_iter().map(|s| s.range());
6955 self.revert_hunks_in_ranges(selections, window, cx);
6956 }
6957
6958 fn revert_hunks_in_ranges(
6959 &mut self,
6960 ranges: impl Iterator<Item = Range<Point>>,
6961 window: &mut Window,
6962 cx: &mut Context<Editor>,
6963 ) {
6964 let mut revert_changes = HashMap::default();
6965 let snapshot = self.snapshot(window, cx);
6966 for hunk in &snapshot.hunks_for_ranges(ranges) {
6967 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6968 }
6969 if !revert_changes.is_empty() {
6970 self.transact(window, cx, |editor, window, cx| {
6971 editor.revert(revert_changes, window, cx);
6972 });
6973 }
6974 }
6975
6976 pub fn open_active_item_in_terminal(
6977 &mut self,
6978 _: &OpenInTerminal,
6979 window: &mut Window,
6980 cx: &mut Context<Self>,
6981 ) {
6982 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6983 let project_path = buffer.read(cx).project_path(cx)?;
6984 let project = self.project.as_ref()?.read(cx);
6985 let entry = project.entry_for_path(&project_path, cx)?;
6986 let parent = match &entry.canonical_path {
6987 Some(canonical_path) => canonical_path.to_path_buf(),
6988 None => project.absolute_path(&project_path, cx)?,
6989 }
6990 .parent()?
6991 .to_path_buf();
6992 Some(parent)
6993 }) {
6994 window.dispatch_action(OpenTerminal { working_directory }.boxed_clone(), cx);
6995 }
6996 }
6997
6998 pub fn prepare_revert_change(
6999 &self,
7000 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
7001 hunk: &MultiBufferDiffHunk,
7002 cx: &mut App,
7003 ) -> Option<()> {
7004 let buffer = self.buffer.read(cx);
7005 let diff = buffer.diff_for(hunk.buffer_id)?;
7006 let buffer = buffer.buffer(hunk.buffer_id)?;
7007 let buffer = buffer.read(cx);
7008 let original_text = diff
7009 .read(cx)
7010 .base_text()
7011 .as_ref()?
7012 .as_rope()
7013 .slice(hunk.diff_base_byte_range.clone());
7014 let buffer_snapshot = buffer.snapshot();
7015 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
7016 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
7017 probe
7018 .0
7019 .start
7020 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
7021 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
7022 }) {
7023 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
7024 Some(())
7025 } else {
7026 None
7027 }
7028 }
7029
7030 pub fn reverse_lines(&mut self, _: &ReverseLines, window: &mut Window, cx: &mut Context<Self>) {
7031 self.manipulate_lines(window, cx, |lines| lines.reverse())
7032 }
7033
7034 pub fn shuffle_lines(&mut self, _: &ShuffleLines, window: &mut Window, cx: &mut Context<Self>) {
7035 self.manipulate_lines(window, cx, |lines| lines.shuffle(&mut thread_rng()))
7036 }
7037
7038 fn manipulate_lines<Fn>(
7039 &mut self,
7040 window: &mut Window,
7041 cx: &mut Context<Self>,
7042 mut callback: Fn,
7043 ) where
7044 Fn: FnMut(&mut Vec<&str>),
7045 {
7046 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7047 let buffer = self.buffer.read(cx).snapshot(cx);
7048
7049 let mut edits = Vec::new();
7050
7051 let selections = self.selections.all::<Point>(cx);
7052 let mut selections = selections.iter().peekable();
7053 let mut contiguous_row_selections = Vec::new();
7054 let mut new_selections = Vec::new();
7055 let mut added_lines = 0;
7056 let mut removed_lines = 0;
7057
7058 while let Some(selection) = selections.next() {
7059 let (start_row, end_row) = consume_contiguous_rows(
7060 &mut contiguous_row_selections,
7061 selection,
7062 &display_map,
7063 &mut selections,
7064 );
7065
7066 let start_point = Point::new(start_row.0, 0);
7067 let end_point = Point::new(
7068 end_row.previous_row().0,
7069 buffer.line_len(end_row.previous_row()),
7070 );
7071 let text = buffer
7072 .text_for_range(start_point..end_point)
7073 .collect::<String>();
7074
7075 let mut lines = text.split('\n').collect_vec();
7076
7077 let lines_before = lines.len();
7078 callback(&mut lines);
7079 let lines_after = lines.len();
7080
7081 edits.push((start_point..end_point, lines.join("\n")));
7082
7083 // Selections must change based on added and removed line count
7084 let start_row =
7085 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
7086 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
7087 new_selections.push(Selection {
7088 id: selection.id,
7089 start: start_row,
7090 end: end_row,
7091 goal: SelectionGoal::None,
7092 reversed: selection.reversed,
7093 });
7094
7095 if lines_after > lines_before {
7096 added_lines += lines_after - lines_before;
7097 } else if lines_before > lines_after {
7098 removed_lines += lines_before - lines_after;
7099 }
7100 }
7101
7102 self.transact(window, cx, |this, window, cx| {
7103 let buffer = this.buffer.update(cx, |buffer, cx| {
7104 buffer.edit(edits, None, cx);
7105 buffer.snapshot(cx)
7106 });
7107
7108 // Recalculate offsets on newly edited buffer
7109 let new_selections = new_selections
7110 .iter()
7111 .map(|s| {
7112 let start_point = Point::new(s.start.0, 0);
7113 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
7114 Selection {
7115 id: s.id,
7116 start: buffer.point_to_offset(start_point),
7117 end: buffer.point_to_offset(end_point),
7118 goal: s.goal,
7119 reversed: s.reversed,
7120 }
7121 })
7122 .collect();
7123
7124 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7125 s.select(new_selections);
7126 });
7127
7128 this.request_autoscroll(Autoscroll::fit(), cx);
7129 });
7130 }
7131
7132 pub fn convert_to_upper_case(
7133 &mut self,
7134 _: &ConvertToUpperCase,
7135 window: &mut Window,
7136 cx: &mut Context<Self>,
7137 ) {
7138 self.manipulate_text(window, cx, |text| text.to_uppercase())
7139 }
7140
7141 pub fn convert_to_lower_case(
7142 &mut self,
7143 _: &ConvertToLowerCase,
7144 window: &mut Window,
7145 cx: &mut Context<Self>,
7146 ) {
7147 self.manipulate_text(window, cx, |text| text.to_lowercase())
7148 }
7149
7150 pub fn convert_to_title_case(
7151 &mut self,
7152 _: &ConvertToTitleCase,
7153 window: &mut Window,
7154 cx: &mut Context<Self>,
7155 ) {
7156 self.manipulate_text(window, cx, |text| {
7157 text.split('\n')
7158 .map(|line| line.to_case(Case::Title))
7159 .join("\n")
7160 })
7161 }
7162
7163 pub fn convert_to_snake_case(
7164 &mut self,
7165 _: &ConvertToSnakeCase,
7166 window: &mut Window,
7167 cx: &mut Context<Self>,
7168 ) {
7169 self.manipulate_text(window, cx, |text| text.to_case(Case::Snake))
7170 }
7171
7172 pub fn convert_to_kebab_case(
7173 &mut self,
7174 _: &ConvertToKebabCase,
7175 window: &mut Window,
7176 cx: &mut Context<Self>,
7177 ) {
7178 self.manipulate_text(window, cx, |text| text.to_case(Case::Kebab))
7179 }
7180
7181 pub fn convert_to_upper_camel_case(
7182 &mut self,
7183 _: &ConvertToUpperCamelCase,
7184 window: &mut Window,
7185 cx: &mut Context<Self>,
7186 ) {
7187 self.manipulate_text(window, cx, |text| {
7188 text.split('\n')
7189 .map(|line| line.to_case(Case::UpperCamel))
7190 .join("\n")
7191 })
7192 }
7193
7194 pub fn convert_to_lower_camel_case(
7195 &mut self,
7196 _: &ConvertToLowerCamelCase,
7197 window: &mut Window,
7198 cx: &mut Context<Self>,
7199 ) {
7200 self.manipulate_text(window, cx, |text| text.to_case(Case::Camel))
7201 }
7202
7203 pub fn convert_to_opposite_case(
7204 &mut self,
7205 _: &ConvertToOppositeCase,
7206 window: &mut Window,
7207 cx: &mut Context<Self>,
7208 ) {
7209 self.manipulate_text(window, cx, |text| {
7210 text.chars()
7211 .fold(String::with_capacity(text.len()), |mut t, c| {
7212 if c.is_uppercase() {
7213 t.extend(c.to_lowercase());
7214 } else {
7215 t.extend(c.to_uppercase());
7216 }
7217 t
7218 })
7219 })
7220 }
7221
7222 fn manipulate_text<Fn>(&mut self, window: &mut Window, cx: &mut Context<Self>, mut callback: Fn)
7223 where
7224 Fn: FnMut(&str) -> String,
7225 {
7226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7227 let buffer = self.buffer.read(cx).snapshot(cx);
7228
7229 let mut new_selections = Vec::new();
7230 let mut edits = Vec::new();
7231 let mut selection_adjustment = 0i32;
7232
7233 for selection in self.selections.all::<usize>(cx) {
7234 let selection_is_empty = selection.is_empty();
7235
7236 let (start, end) = if selection_is_empty {
7237 let word_range = movement::surrounding_word(
7238 &display_map,
7239 selection.start.to_display_point(&display_map),
7240 );
7241 let start = word_range.start.to_offset(&display_map, Bias::Left);
7242 let end = word_range.end.to_offset(&display_map, Bias::Left);
7243 (start, end)
7244 } else {
7245 (selection.start, selection.end)
7246 };
7247
7248 let text = buffer.text_for_range(start..end).collect::<String>();
7249 let old_length = text.len() as i32;
7250 let text = callback(&text);
7251
7252 new_selections.push(Selection {
7253 start: (start as i32 - selection_adjustment) as usize,
7254 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
7255 goal: SelectionGoal::None,
7256 ..selection
7257 });
7258
7259 selection_adjustment += old_length - text.len() as i32;
7260
7261 edits.push((start..end, text));
7262 }
7263
7264 self.transact(window, cx, |this, window, cx| {
7265 this.buffer.update(cx, |buffer, cx| {
7266 buffer.edit(edits, None, cx);
7267 });
7268
7269 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7270 s.select(new_selections);
7271 });
7272
7273 this.request_autoscroll(Autoscroll::fit(), cx);
7274 });
7275 }
7276
7277 pub fn duplicate(
7278 &mut self,
7279 upwards: bool,
7280 whole_lines: bool,
7281 window: &mut Window,
7282 cx: &mut Context<Self>,
7283 ) {
7284 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7285 let buffer = &display_map.buffer_snapshot;
7286 let selections = self.selections.all::<Point>(cx);
7287
7288 let mut edits = Vec::new();
7289 let mut selections_iter = selections.iter().peekable();
7290 while let Some(selection) = selections_iter.next() {
7291 let mut rows = selection.spanned_rows(false, &display_map);
7292 // duplicate line-wise
7293 if whole_lines || selection.start == selection.end {
7294 // Avoid duplicating the same lines twice.
7295 while let Some(next_selection) = selections_iter.peek() {
7296 let next_rows = next_selection.spanned_rows(false, &display_map);
7297 if next_rows.start < rows.end {
7298 rows.end = next_rows.end;
7299 selections_iter.next().unwrap();
7300 } else {
7301 break;
7302 }
7303 }
7304
7305 // Copy the text from the selected row region and splice it either at the start
7306 // or end of the region.
7307 let start = Point::new(rows.start.0, 0);
7308 let end = Point::new(
7309 rows.end.previous_row().0,
7310 buffer.line_len(rows.end.previous_row()),
7311 );
7312 let text = buffer
7313 .text_for_range(start..end)
7314 .chain(Some("\n"))
7315 .collect::<String>();
7316 let insert_location = if upwards {
7317 Point::new(rows.end.0, 0)
7318 } else {
7319 start
7320 };
7321 edits.push((insert_location..insert_location, text));
7322 } else {
7323 // duplicate character-wise
7324 let start = selection.start;
7325 let end = selection.end;
7326 let text = buffer.text_for_range(start..end).collect::<String>();
7327 edits.push((selection.end..selection.end, text));
7328 }
7329 }
7330
7331 self.transact(window, cx, |this, _, cx| {
7332 this.buffer.update(cx, |buffer, cx| {
7333 buffer.edit(edits, None, cx);
7334 });
7335
7336 this.request_autoscroll(Autoscroll::fit(), cx);
7337 });
7338 }
7339
7340 pub fn duplicate_line_up(
7341 &mut self,
7342 _: &DuplicateLineUp,
7343 window: &mut Window,
7344 cx: &mut Context<Self>,
7345 ) {
7346 self.duplicate(true, true, window, cx);
7347 }
7348
7349 pub fn duplicate_line_down(
7350 &mut self,
7351 _: &DuplicateLineDown,
7352 window: &mut Window,
7353 cx: &mut Context<Self>,
7354 ) {
7355 self.duplicate(false, true, window, cx);
7356 }
7357
7358 pub fn duplicate_selection(
7359 &mut self,
7360 _: &DuplicateSelection,
7361 window: &mut Window,
7362 cx: &mut Context<Self>,
7363 ) {
7364 self.duplicate(false, false, window, cx);
7365 }
7366
7367 pub fn move_line_up(&mut self, _: &MoveLineUp, window: &mut Window, cx: &mut Context<Self>) {
7368 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7369 let buffer = self.buffer.read(cx).snapshot(cx);
7370
7371 let mut edits = Vec::new();
7372 let mut unfold_ranges = Vec::new();
7373 let mut refold_creases = Vec::new();
7374
7375 let selections = self.selections.all::<Point>(cx);
7376 let mut selections = selections.iter().peekable();
7377 let mut contiguous_row_selections = Vec::new();
7378 let mut new_selections = Vec::new();
7379
7380 while let Some(selection) = selections.next() {
7381 // Find all the selections that span a contiguous row range
7382 let (start_row, end_row) = consume_contiguous_rows(
7383 &mut contiguous_row_selections,
7384 selection,
7385 &display_map,
7386 &mut selections,
7387 );
7388
7389 // Move the text spanned by the row range to be before the line preceding the row range
7390 if start_row.0 > 0 {
7391 let range_to_move = Point::new(
7392 start_row.previous_row().0,
7393 buffer.line_len(start_row.previous_row()),
7394 )
7395 ..Point::new(
7396 end_row.previous_row().0,
7397 buffer.line_len(end_row.previous_row()),
7398 );
7399 let insertion_point = display_map
7400 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
7401 .0;
7402
7403 // Don't move lines across excerpts
7404 if buffer
7405 .excerpt_containing(insertion_point..range_to_move.end)
7406 .is_some()
7407 {
7408 let text = buffer
7409 .text_for_range(range_to_move.clone())
7410 .flat_map(|s| s.chars())
7411 .skip(1)
7412 .chain(['\n'])
7413 .collect::<String>();
7414
7415 edits.push((
7416 buffer.anchor_after(range_to_move.start)
7417 ..buffer.anchor_before(range_to_move.end),
7418 String::new(),
7419 ));
7420 let insertion_anchor = buffer.anchor_after(insertion_point);
7421 edits.push((insertion_anchor..insertion_anchor, text));
7422
7423 let row_delta = range_to_move.start.row - insertion_point.row + 1;
7424
7425 // Move selections up
7426 new_selections.extend(contiguous_row_selections.drain(..).map(
7427 |mut selection| {
7428 selection.start.row -= row_delta;
7429 selection.end.row -= row_delta;
7430 selection
7431 },
7432 ));
7433
7434 // Move folds up
7435 unfold_ranges.push(range_to_move.clone());
7436 for fold in display_map.folds_in_range(
7437 buffer.anchor_before(range_to_move.start)
7438 ..buffer.anchor_after(range_to_move.end),
7439 ) {
7440 let mut start = fold.range.start.to_point(&buffer);
7441 let mut end = fold.range.end.to_point(&buffer);
7442 start.row -= row_delta;
7443 end.row -= row_delta;
7444 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7445 }
7446 }
7447 }
7448
7449 // If we didn't move line(s), preserve the existing selections
7450 new_selections.append(&mut contiguous_row_selections);
7451 }
7452
7453 self.transact(window, cx, |this, window, cx| {
7454 this.unfold_ranges(&unfold_ranges, true, true, cx);
7455 this.buffer.update(cx, |buffer, cx| {
7456 for (range, text) in edits {
7457 buffer.edit([(range, text)], None, cx);
7458 }
7459 });
7460 this.fold_creases(refold_creases, true, window, cx);
7461 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7462 s.select(new_selections);
7463 })
7464 });
7465 }
7466
7467 pub fn move_line_down(
7468 &mut self,
7469 _: &MoveLineDown,
7470 window: &mut Window,
7471 cx: &mut Context<Self>,
7472 ) {
7473 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7474 let buffer = self.buffer.read(cx).snapshot(cx);
7475
7476 let mut edits = Vec::new();
7477 let mut unfold_ranges = Vec::new();
7478 let mut refold_creases = Vec::new();
7479
7480 let selections = self.selections.all::<Point>(cx);
7481 let mut selections = selections.iter().peekable();
7482 let mut contiguous_row_selections = Vec::new();
7483 let mut new_selections = Vec::new();
7484
7485 while let Some(selection) = selections.next() {
7486 // Find all the selections that span a contiguous row range
7487 let (start_row, end_row) = consume_contiguous_rows(
7488 &mut contiguous_row_selections,
7489 selection,
7490 &display_map,
7491 &mut selections,
7492 );
7493
7494 // Move the text spanned by the row range to be after the last line of the row range
7495 if end_row.0 <= buffer.max_point().row {
7496 let range_to_move =
7497 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7498 let insertion_point = display_map
7499 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7500 .0;
7501
7502 // Don't move lines across excerpt boundaries
7503 if buffer
7504 .excerpt_containing(range_to_move.start..insertion_point)
7505 .is_some()
7506 {
7507 let mut text = String::from("\n");
7508 text.extend(buffer.text_for_range(range_to_move.clone()));
7509 text.pop(); // Drop trailing newline
7510 edits.push((
7511 buffer.anchor_after(range_to_move.start)
7512 ..buffer.anchor_before(range_to_move.end),
7513 String::new(),
7514 ));
7515 let insertion_anchor = buffer.anchor_after(insertion_point);
7516 edits.push((insertion_anchor..insertion_anchor, text));
7517
7518 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7519
7520 // Move selections down
7521 new_selections.extend(contiguous_row_selections.drain(..).map(
7522 |mut selection| {
7523 selection.start.row += row_delta;
7524 selection.end.row += row_delta;
7525 selection
7526 },
7527 ));
7528
7529 // Move folds down
7530 unfold_ranges.push(range_to_move.clone());
7531 for fold in display_map.folds_in_range(
7532 buffer.anchor_before(range_to_move.start)
7533 ..buffer.anchor_after(range_to_move.end),
7534 ) {
7535 let mut start = fold.range.start.to_point(&buffer);
7536 let mut end = fold.range.end.to_point(&buffer);
7537 start.row += row_delta;
7538 end.row += row_delta;
7539 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7540 }
7541 }
7542 }
7543
7544 // If we didn't move line(s), preserve the existing selections
7545 new_selections.append(&mut contiguous_row_selections);
7546 }
7547
7548 self.transact(window, cx, |this, window, cx| {
7549 this.unfold_ranges(&unfold_ranges, true, true, cx);
7550 this.buffer.update(cx, |buffer, cx| {
7551 for (range, text) in edits {
7552 buffer.edit([(range, text)], None, cx);
7553 }
7554 });
7555 this.fold_creases(refold_creases, true, window, cx);
7556 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7557 s.select(new_selections)
7558 });
7559 });
7560 }
7561
7562 pub fn transpose(&mut self, _: &Transpose, window: &mut Window, cx: &mut Context<Self>) {
7563 let text_layout_details = &self.text_layout_details(window);
7564 self.transact(window, cx, |this, window, cx| {
7565 let edits = this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7566 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7567 let line_mode = s.line_mode;
7568 s.move_with(|display_map, selection| {
7569 if !selection.is_empty() || line_mode {
7570 return;
7571 }
7572
7573 let mut head = selection.head();
7574 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7575 if head.column() == display_map.line_len(head.row()) {
7576 transpose_offset = display_map
7577 .buffer_snapshot
7578 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7579 }
7580
7581 if transpose_offset == 0 {
7582 return;
7583 }
7584
7585 *head.column_mut() += 1;
7586 head = display_map.clip_point(head, Bias::Right);
7587 let goal = SelectionGoal::HorizontalPosition(
7588 display_map
7589 .x_for_display_point(head, text_layout_details)
7590 .into(),
7591 );
7592 selection.collapse_to(head, goal);
7593
7594 let transpose_start = display_map
7595 .buffer_snapshot
7596 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7597 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7598 let transpose_end = display_map
7599 .buffer_snapshot
7600 .clip_offset(transpose_offset + 1, Bias::Right);
7601 if let Some(ch) =
7602 display_map.buffer_snapshot.chars_at(transpose_start).next()
7603 {
7604 edits.push((transpose_start..transpose_offset, String::new()));
7605 edits.push((transpose_end..transpose_end, ch.to_string()));
7606 }
7607 }
7608 });
7609 edits
7610 });
7611 this.buffer
7612 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7613 let selections = this.selections.all::<usize>(cx);
7614 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7615 s.select(selections);
7616 });
7617 });
7618 }
7619
7620 pub fn rewrap(&mut self, _: &Rewrap, _: &mut Window, cx: &mut Context<Self>) {
7621 self.rewrap_impl(IsVimMode::No, cx)
7622 }
7623
7624 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut Context<Self>) {
7625 let buffer = self.buffer.read(cx).snapshot(cx);
7626 let selections = self.selections.all::<Point>(cx);
7627 let mut selections = selections.iter().peekable();
7628
7629 let mut edits = Vec::new();
7630 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7631
7632 while let Some(selection) = selections.next() {
7633 let mut start_row = selection.start.row;
7634 let mut end_row = selection.end.row;
7635
7636 // Skip selections that overlap with a range that has already been rewrapped.
7637 let selection_range = start_row..end_row;
7638 if rewrapped_row_ranges
7639 .iter()
7640 .any(|range| range.overlaps(&selection_range))
7641 {
7642 continue;
7643 }
7644
7645 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7646
7647 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7648 match language_scope.language_name().as_ref() {
7649 "Markdown" | "Plain Text" => {
7650 should_rewrap = true;
7651 }
7652 _ => {}
7653 }
7654 }
7655
7656 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7657
7658 // Since not all lines in the selection may be at the same indent
7659 // level, choose the indent size that is the most common between all
7660 // of the lines.
7661 //
7662 // If there is a tie, we use the deepest indent.
7663 let (indent_size, indent_end) = {
7664 let mut indent_size_occurrences = HashMap::default();
7665 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7666
7667 for row in start_row..=end_row {
7668 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7669 rows_by_indent_size.entry(indent).or_default().push(row);
7670 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7671 }
7672
7673 let indent_size = indent_size_occurrences
7674 .into_iter()
7675 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7676 .map(|(indent, _)| indent)
7677 .unwrap_or_default();
7678 let row = rows_by_indent_size[&indent_size][0];
7679 let indent_end = Point::new(row, indent_size.len);
7680
7681 (indent_size, indent_end)
7682 };
7683
7684 let mut line_prefix = indent_size.chars().collect::<String>();
7685
7686 if let Some(comment_prefix) =
7687 buffer
7688 .language_scope_at(selection.head())
7689 .and_then(|language| {
7690 language
7691 .line_comment_prefixes()
7692 .iter()
7693 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7694 .cloned()
7695 })
7696 {
7697 line_prefix.push_str(&comment_prefix);
7698 should_rewrap = true;
7699 }
7700
7701 if !should_rewrap {
7702 continue;
7703 }
7704
7705 if selection.is_empty() {
7706 'expand_upwards: while start_row > 0 {
7707 let prev_row = start_row - 1;
7708 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7709 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7710 {
7711 start_row = prev_row;
7712 } else {
7713 break 'expand_upwards;
7714 }
7715 }
7716
7717 'expand_downwards: while end_row < buffer.max_point().row {
7718 let next_row = end_row + 1;
7719 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7720 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7721 {
7722 end_row = next_row;
7723 } else {
7724 break 'expand_downwards;
7725 }
7726 }
7727 }
7728
7729 let start = Point::new(start_row, 0);
7730 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7731 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7732 let Some(lines_without_prefixes) = selection_text
7733 .lines()
7734 .map(|line| {
7735 line.strip_prefix(&line_prefix)
7736 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7737 .ok_or_else(|| {
7738 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7739 })
7740 })
7741 .collect::<Result<Vec<_>, _>>()
7742 .log_err()
7743 else {
7744 continue;
7745 };
7746
7747 let wrap_column = buffer
7748 .settings_at(Point::new(start_row, 0), cx)
7749 .preferred_line_length as usize;
7750 let wrapped_text = wrap_with_prefix(
7751 line_prefix,
7752 lines_without_prefixes.join(" "),
7753 wrap_column,
7754 tab_size,
7755 );
7756
7757 // TODO: should always use char-based diff while still supporting cursor behavior that
7758 // matches vim.
7759 let diff = match is_vim_mode {
7760 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7761 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7762 };
7763 let mut offset = start.to_offset(&buffer);
7764 let mut moved_since_edit = true;
7765
7766 for change in diff.iter_all_changes() {
7767 let value = change.value();
7768 match change.tag() {
7769 ChangeTag::Equal => {
7770 offset += value.len();
7771 moved_since_edit = true;
7772 }
7773 ChangeTag::Delete => {
7774 let start = buffer.anchor_after(offset);
7775 let end = buffer.anchor_before(offset + value.len());
7776
7777 if moved_since_edit {
7778 edits.push((start..end, String::new()));
7779 } else {
7780 edits.last_mut().unwrap().0.end = end;
7781 }
7782
7783 offset += value.len();
7784 moved_since_edit = false;
7785 }
7786 ChangeTag::Insert => {
7787 if moved_since_edit {
7788 let anchor = buffer.anchor_after(offset);
7789 edits.push((anchor..anchor, value.to_string()));
7790 } else {
7791 edits.last_mut().unwrap().1.push_str(value);
7792 }
7793
7794 moved_since_edit = false;
7795 }
7796 }
7797 }
7798
7799 rewrapped_row_ranges.push(start_row..=end_row);
7800 }
7801
7802 self.buffer
7803 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7804 }
7805
7806 pub fn cut_common(&mut self, window: &mut Window, cx: &mut Context<Self>) -> ClipboardItem {
7807 let mut text = String::new();
7808 let buffer = self.buffer.read(cx).snapshot(cx);
7809 let mut selections = self.selections.all::<Point>(cx);
7810 let mut clipboard_selections = Vec::with_capacity(selections.len());
7811 {
7812 let max_point = buffer.max_point();
7813 let mut is_first = true;
7814 for selection in &mut selections {
7815 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7816 if is_entire_line {
7817 selection.start = Point::new(selection.start.row, 0);
7818 if !selection.is_empty() && selection.end.column == 0 {
7819 selection.end = cmp::min(max_point, selection.end);
7820 } else {
7821 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7822 }
7823 selection.goal = SelectionGoal::None;
7824 }
7825 if is_first {
7826 is_first = false;
7827 } else {
7828 text += "\n";
7829 }
7830 let mut len = 0;
7831 for chunk in buffer.text_for_range(selection.start..selection.end) {
7832 text.push_str(chunk);
7833 len += chunk.len();
7834 }
7835 clipboard_selections.push(ClipboardSelection {
7836 len,
7837 is_entire_line,
7838 first_line_indent: buffer
7839 .indent_size_for_line(MultiBufferRow(selection.start.row))
7840 .len,
7841 });
7842 }
7843 }
7844
7845 self.transact(window, cx, |this, window, cx| {
7846 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7847 s.select(selections);
7848 });
7849 this.insert("", window, cx);
7850 });
7851 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7852 }
7853
7854 pub fn cut(&mut self, _: &Cut, window: &mut Window, cx: &mut Context<Self>) {
7855 let item = self.cut_common(window, cx);
7856 cx.write_to_clipboard(item);
7857 }
7858
7859 pub fn kill_ring_cut(&mut self, _: &KillRingCut, window: &mut Window, cx: &mut Context<Self>) {
7860 self.change_selections(None, window, cx, |s| {
7861 s.move_with(|snapshot, sel| {
7862 if sel.is_empty() {
7863 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7864 }
7865 });
7866 });
7867 let item = self.cut_common(window, cx);
7868 cx.set_global(KillRing(item))
7869 }
7870
7871 pub fn kill_ring_yank(
7872 &mut self,
7873 _: &KillRingYank,
7874 window: &mut Window,
7875 cx: &mut Context<Self>,
7876 ) {
7877 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7878 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7879 (kill_ring.text().to_string(), kill_ring.metadata_json())
7880 } else {
7881 return;
7882 }
7883 } else {
7884 return;
7885 };
7886 self.do_paste(&text, metadata, false, window, cx);
7887 }
7888
7889 pub fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
7890 let selections = self.selections.all::<Point>(cx);
7891 let buffer = self.buffer.read(cx).read(cx);
7892 let mut text = String::new();
7893
7894 let mut clipboard_selections = Vec::with_capacity(selections.len());
7895 {
7896 let max_point = buffer.max_point();
7897 let mut is_first = true;
7898 for selection in selections.iter() {
7899 let mut start = selection.start;
7900 let mut end = selection.end;
7901 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7902 if is_entire_line {
7903 start = Point::new(start.row, 0);
7904 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7905 }
7906 if is_first {
7907 is_first = false;
7908 } else {
7909 text += "\n";
7910 }
7911 let mut len = 0;
7912 for chunk in buffer.text_for_range(start..end) {
7913 text.push_str(chunk);
7914 len += chunk.len();
7915 }
7916 clipboard_selections.push(ClipboardSelection {
7917 len,
7918 is_entire_line,
7919 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7920 });
7921 }
7922 }
7923
7924 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7925 text,
7926 clipboard_selections,
7927 ));
7928 }
7929
7930 pub fn do_paste(
7931 &mut self,
7932 text: &String,
7933 clipboard_selections: Option<Vec<ClipboardSelection>>,
7934 handle_entire_lines: bool,
7935 window: &mut Window,
7936 cx: &mut Context<Self>,
7937 ) {
7938 if self.read_only(cx) {
7939 return;
7940 }
7941
7942 let clipboard_text = Cow::Borrowed(text);
7943
7944 self.transact(window, cx, |this, window, cx| {
7945 if let Some(mut clipboard_selections) = clipboard_selections {
7946 let old_selections = this.selections.all::<usize>(cx);
7947 let all_selections_were_entire_line =
7948 clipboard_selections.iter().all(|s| s.is_entire_line);
7949 let first_selection_indent_column =
7950 clipboard_selections.first().map(|s| s.first_line_indent);
7951 if clipboard_selections.len() != old_selections.len() {
7952 clipboard_selections.drain(..);
7953 }
7954 let cursor_offset = this.selections.last::<usize>(cx).head();
7955 let mut auto_indent_on_paste = true;
7956
7957 this.buffer.update(cx, |buffer, cx| {
7958 let snapshot = buffer.read(cx);
7959 auto_indent_on_paste =
7960 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7961
7962 let mut start_offset = 0;
7963 let mut edits = Vec::new();
7964 let mut original_indent_columns = Vec::new();
7965 for (ix, selection) in old_selections.iter().enumerate() {
7966 let to_insert;
7967 let entire_line;
7968 let original_indent_column;
7969 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7970 let end_offset = start_offset + clipboard_selection.len;
7971 to_insert = &clipboard_text[start_offset..end_offset];
7972 entire_line = clipboard_selection.is_entire_line;
7973 start_offset = end_offset + 1;
7974 original_indent_column = Some(clipboard_selection.first_line_indent);
7975 } else {
7976 to_insert = clipboard_text.as_str();
7977 entire_line = all_selections_were_entire_line;
7978 original_indent_column = first_selection_indent_column
7979 }
7980
7981 // If the corresponding selection was empty when this slice of the
7982 // clipboard text was written, then the entire line containing the
7983 // selection was copied. If this selection is also currently empty,
7984 // then paste the line before the current line of the buffer.
7985 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7986 let column = selection.start.to_point(&snapshot).column as usize;
7987 let line_start = selection.start - column;
7988 line_start..line_start
7989 } else {
7990 selection.range()
7991 };
7992
7993 edits.push((range, to_insert));
7994 original_indent_columns.extend(original_indent_column);
7995 }
7996 drop(snapshot);
7997
7998 buffer.edit(
7999 edits,
8000 if auto_indent_on_paste {
8001 Some(AutoindentMode::Block {
8002 original_indent_columns,
8003 })
8004 } else {
8005 None
8006 },
8007 cx,
8008 );
8009 });
8010
8011 let selections = this.selections.all::<usize>(cx);
8012 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8013 s.select(selections)
8014 });
8015 } else {
8016 this.insert(&clipboard_text, window, cx);
8017 }
8018 });
8019 }
8020
8021 pub fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
8022 if let Some(item) = cx.read_from_clipboard() {
8023 let entries = item.entries();
8024
8025 match entries.first() {
8026 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
8027 // of all the pasted entries.
8028 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
8029 .do_paste(
8030 clipboard_string.text(),
8031 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
8032 true,
8033 window,
8034 cx,
8035 ),
8036 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, window, cx),
8037 }
8038 }
8039 }
8040
8041 pub fn undo(&mut self, _: &Undo, window: &mut Window, cx: &mut Context<Self>) {
8042 if self.read_only(cx) {
8043 return;
8044 }
8045
8046 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
8047 if let Some((selections, _)) =
8048 self.selection_history.transaction(transaction_id).cloned()
8049 {
8050 self.change_selections(None, window, cx, |s| {
8051 s.select_anchors(selections.to_vec());
8052 });
8053 }
8054 self.request_autoscroll(Autoscroll::fit(), cx);
8055 self.unmark_text(window, cx);
8056 self.refresh_inline_completion(true, false, window, cx);
8057 cx.emit(EditorEvent::Edited { transaction_id });
8058 cx.emit(EditorEvent::TransactionUndone { transaction_id });
8059 }
8060 }
8061
8062 pub fn redo(&mut self, _: &Redo, window: &mut Window, cx: &mut Context<Self>) {
8063 if self.read_only(cx) {
8064 return;
8065 }
8066
8067 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
8068 if let Some((_, Some(selections))) =
8069 self.selection_history.transaction(transaction_id).cloned()
8070 {
8071 self.change_selections(None, window, cx, |s| {
8072 s.select_anchors(selections.to_vec());
8073 });
8074 }
8075 self.request_autoscroll(Autoscroll::fit(), cx);
8076 self.unmark_text(window, cx);
8077 self.refresh_inline_completion(true, false, window, cx);
8078 cx.emit(EditorEvent::Edited { transaction_id });
8079 }
8080 }
8081
8082 pub fn finalize_last_transaction(&mut self, cx: &mut Context<Self>) {
8083 self.buffer
8084 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
8085 }
8086
8087 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut Context<Self>) {
8088 self.buffer
8089 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
8090 }
8091
8092 pub fn move_left(&mut self, _: &MoveLeft, window: &mut Window, cx: &mut Context<Self>) {
8093 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8094 let line_mode = s.line_mode;
8095 s.move_with(|map, selection| {
8096 let cursor = if selection.is_empty() && !line_mode {
8097 movement::left(map, selection.start)
8098 } else {
8099 selection.start
8100 };
8101 selection.collapse_to(cursor, SelectionGoal::None);
8102 });
8103 })
8104 }
8105
8106 pub fn select_left(&mut self, _: &SelectLeft, window: &mut Window, cx: &mut Context<Self>) {
8107 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8108 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
8109 })
8110 }
8111
8112 pub fn move_right(&mut self, _: &MoveRight, window: &mut Window, cx: &mut Context<Self>) {
8113 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8114 let line_mode = s.line_mode;
8115 s.move_with(|map, selection| {
8116 let cursor = if selection.is_empty() && !line_mode {
8117 movement::right(map, selection.end)
8118 } else {
8119 selection.end
8120 };
8121 selection.collapse_to(cursor, SelectionGoal::None)
8122 });
8123 })
8124 }
8125
8126 pub fn select_right(&mut self, _: &SelectRight, window: &mut Window, cx: &mut Context<Self>) {
8127 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8128 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
8129 })
8130 }
8131
8132 pub fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
8133 if self.take_rename(true, window, cx).is_some() {
8134 return;
8135 }
8136
8137 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8138 cx.propagate();
8139 return;
8140 }
8141
8142 let text_layout_details = &self.text_layout_details(window);
8143 let selection_count = self.selections.count();
8144 let first_selection = self.selections.first_anchor();
8145
8146 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8147 let line_mode = s.line_mode;
8148 s.move_with(|map, selection| {
8149 if !selection.is_empty() && !line_mode {
8150 selection.goal = SelectionGoal::None;
8151 }
8152 let (cursor, goal) = movement::up(
8153 map,
8154 selection.start,
8155 selection.goal,
8156 false,
8157 text_layout_details,
8158 );
8159 selection.collapse_to(cursor, goal);
8160 });
8161 });
8162
8163 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
8164 {
8165 cx.propagate();
8166 }
8167 }
8168
8169 pub fn move_up_by_lines(
8170 &mut self,
8171 action: &MoveUpByLines,
8172 window: &mut Window,
8173 cx: &mut Context<Self>,
8174 ) {
8175 if self.take_rename(true, window, cx).is_some() {
8176 return;
8177 }
8178
8179 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8180 cx.propagate();
8181 return;
8182 }
8183
8184 let text_layout_details = &self.text_layout_details(window);
8185
8186 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8187 let line_mode = s.line_mode;
8188 s.move_with(|map, selection| {
8189 if !selection.is_empty() && !line_mode {
8190 selection.goal = SelectionGoal::None;
8191 }
8192 let (cursor, goal) = movement::up_by_rows(
8193 map,
8194 selection.start,
8195 action.lines,
8196 selection.goal,
8197 false,
8198 text_layout_details,
8199 );
8200 selection.collapse_to(cursor, goal);
8201 });
8202 })
8203 }
8204
8205 pub fn move_down_by_lines(
8206 &mut self,
8207 action: &MoveDownByLines,
8208 window: &mut Window,
8209 cx: &mut Context<Self>,
8210 ) {
8211 if self.take_rename(true, window, cx).is_some() {
8212 return;
8213 }
8214
8215 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8216 cx.propagate();
8217 return;
8218 }
8219
8220 let text_layout_details = &self.text_layout_details(window);
8221
8222 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8223 let line_mode = s.line_mode;
8224 s.move_with(|map, selection| {
8225 if !selection.is_empty() && !line_mode {
8226 selection.goal = SelectionGoal::None;
8227 }
8228 let (cursor, goal) = movement::down_by_rows(
8229 map,
8230 selection.start,
8231 action.lines,
8232 selection.goal,
8233 false,
8234 text_layout_details,
8235 );
8236 selection.collapse_to(cursor, goal);
8237 });
8238 })
8239 }
8240
8241 pub fn select_down_by_lines(
8242 &mut self,
8243 action: &SelectDownByLines,
8244 window: &mut Window,
8245 cx: &mut Context<Self>,
8246 ) {
8247 let text_layout_details = &self.text_layout_details(window);
8248 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8249 s.move_heads_with(|map, head, goal| {
8250 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
8251 })
8252 })
8253 }
8254
8255 pub fn select_up_by_lines(
8256 &mut self,
8257 action: &SelectUpByLines,
8258 window: &mut Window,
8259 cx: &mut Context<Self>,
8260 ) {
8261 let text_layout_details = &self.text_layout_details(window);
8262 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8263 s.move_heads_with(|map, head, goal| {
8264 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
8265 })
8266 })
8267 }
8268
8269 pub fn select_page_up(
8270 &mut self,
8271 _: &SelectPageUp,
8272 window: &mut Window,
8273 cx: &mut Context<Self>,
8274 ) {
8275 let Some(row_count) = self.visible_row_count() else {
8276 return;
8277 };
8278
8279 let text_layout_details = &self.text_layout_details(window);
8280
8281 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8282 s.move_heads_with(|map, head, goal| {
8283 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
8284 })
8285 })
8286 }
8287
8288 pub fn move_page_up(
8289 &mut self,
8290 action: &MovePageUp,
8291 window: &mut Window,
8292 cx: &mut Context<Self>,
8293 ) {
8294 if self.take_rename(true, window, cx).is_some() {
8295 return;
8296 }
8297
8298 if self
8299 .context_menu
8300 .borrow_mut()
8301 .as_mut()
8302 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
8303 .unwrap_or(false)
8304 {
8305 return;
8306 }
8307
8308 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8309 cx.propagate();
8310 return;
8311 }
8312
8313 let Some(row_count) = self.visible_row_count() else {
8314 return;
8315 };
8316
8317 let autoscroll = if action.center_cursor {
8318 Autoscroll::center()
8319 } else {
8320 Autoscroll::fit()
8321 };
8322
8323 let text_layout_details = &self.text_layout_details(window);
8324
8325 self.change_selections(Some(autoscroll), window, cx, |s| {
8326 let line_mode = s.line_mode;
8327 s.move_with(|map, selection| {
8328 if !selection.is_empty() && !line_mode {
8329 selection.goal = SelectionGoal::None;
8330 }
8331 let (cursor, goal) = movement::up_by_rows(
8332 map,
8333 selection.end,
8334 row_count,
8335 selection.goal,
8336 false,
8337 text_layout_details,
8338 );
8339 selection.collapse_to(cursor, goal);
8340 });
8341 });
8342 }
8343
8344 pub fn select_up(&mut self, _: &SelectUp, window: &mut Window, cx: &mut Context<Self>) {
8345 let text_layout_details = &self.text_layout_details(window);
8346 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8347 s.move_heads_with(|map, head, goal| {
8348 movement::up(map, head, goal, false, text_layout_details)
8349 })
8350 })
8351 }
8352
8353 pub fn move_down(&mut self, _: &MoveDown, window: &mut Window, cx: &mut Context<Self>) {
8354 self.take_rename(true, window, cx);
8355
8356 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8357 cx.propagate();
8358 return;
8359 }
8360
8361 let text_layout_details = &self.text_layout_details(window);
8362 let selection_count = self.selections.count();
8363 let first_selection = self.selections.first_anchor();
8364
8365 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8366 let line_mode = s.line_mode;
8367 s.move_with(|map, selection| {
8368 if !selection.is_empty() && !line_mode {
8369 selection.goal = SelectionGoal::None;
8370 }
8371 let (cursor, goal) = movement::down(
8372 map,
8373 selection.end,
8374 selection.goal,
8375 false,
8376 text_layout_details,
8377 );
8378 selection.collapse_to(cursor, goal);
8379 });
8380 });
8381
8382 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
8383 {
8384 cx.propagate();
8385 }
8386 }
8387
8388 pub fn select_page_down(
8389 &mut self,
8390 _: &SelectPageDown,
8391 window: &mut Window,
8392 cx: &mut Context<Self>,
8393 ) {
8394 let Some(row_count) = self.visible_row_count() else {
8395 return;
8396 };
8397
8398 let text_layout_details = &self.text_layout_details(window);
8399
8400 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8401 s.move_heads_with(|map, head, goal| {
8402 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
8403 })
8404 })
8405 }
8406
8407 pub fn move_page_down(
8408 &mut self,
8409 action: &MovePageDown,
8410 window: &mut Window,
8411 cx: &mut Context<Self>,
8412 ) {
8413 if self.take_rename(true, window, cx).is_some() {
8414 return;
8415 }
8416
8417 if self
8418 .context_menu
8419 .borrow_mut()
8420 .as_mut()
8421 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
8422 .unwrap_or(false)
8423 {
8424 return;
8425 }
8426
8427 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8428 cx.propagate();
8429 return;
8430 }
8431
8432 let Some(row_count) = self.visible_row_count() else {
8433 return;
8434 };
8435
8436 let autoscroll = if action.center_cursor {
8437 Autoscroll::center()
8438 } else {
8439 Autoscroll::fit()
8440 };
8441
8442 let text_layout_details = &self.text_layout_details(window);
8443 self.change_selections(Some(autoscroll), window, cx, |s| {
8444 let line_mode = s.line_mode;
8445 s.move_with(|map, selection| {
8446 if !selection.is_empty() && !line_mode {
8447 selection.goal = SelectionGoal::None;
8448 }
8449 let (cursor, goal) = movement::down_by_rows(
8450 map,
8451 selection.end,
8452 row_count,
8453 selection.goal,
8454 false,
8455 text_layout_details,
8456 );
8457 selection.collapse_to(cursor, goal);
8458 });
8459 });
8460 }
8461
8462 pub fn select_down(&mut self, _: &SelectDown, window: &mut Window, cx: &mut Context<Self>) {
8463 let text_layout_details = &self.text_layout_details(window);
8464 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8465 s.move_heads_with(|map, head, goal| {
8466 movement::down(map, head, goal, false, text_layout_details)
8467 })
8468 });
8469 }
8470
8471 pub fn context_menu_first(
8472 &mut self,
8473 _: &ContextMenuFirst,
8474 _window: &mut Window,
8475 cx: &mut Context<Self>,
8476 ) {
8477 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8478 context_menu.select_first(self.completion_provider.as_deref(), cx);
8479 }
8480 }
8481
8482 pub fn context_menu_prev(
8483 &mut self,
8484 _: &ContextMenuPrev,
8485 _window: &mut Window,
8486 cx: &mut Context<Self>,
8487 ) {
8488 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8489 context_menu.select_prev(self.completion_provider.as_deref(), cx);
8490 }
8491 }
8492
8493 pub fn context_menu_next(
8494 &mut self,
8495 _: &ContextMenuNext,
8496 _window: &mut Window,
8497 cx: &mut Context<Self>,
8498 ) {
8499 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8500 context_menu.select_next(self.completion_provider.as_deref(), cx);
8501 }
8502 }
8503
8504 pub fn context_menu_last(
8505 &mut self,
8506 _: &ContextMenuLast,
8507 _window: &mut Window,
8508 cx: &mut Context<Self>,
8509 ) {
8510 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8511 context_menu.select_last(self.completion_provider.as_deref(), cx);
8512 }
8513 }
8514
8515 pub fn move_to_previous_word_start(
8516 &mut self,
8517 _: &MoveToPreviousWordStart,
8518 window: &mut Window,
8519 cx: &mut Context<Self>,
8520 ) {
8521 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8522 s.move_cursors_with(|map, head, _| {
8523 (
8524 movement::previous_word_start(map, head),
8525 SelectionGoal::None,
8526 )
8527 });
8528 })
8529 }
8530
8531 pub fn move_to_previous_subword_start(
8532 &mut self,
8533 _: &MoveToPreviousSubwordStart,
8534 window: &mut Window,
8535 cx: &mut Context<Self>,
8536 ) {
8537 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8538 s.move_cursors_with(|map, head, _| {
8539 (
8540 movement::previous_subword_start(map, head),
8541 SelectionGoal::None,
8542 )
8543 });
8544 })
8545 }
8546
8547 pub fn select_to_previous_word_start(
8548 &mut self,
8549 _: &SelectToPreviousWordStart,
8550 window: &mut Window,
8551 cx: &mut Context<Self>,
8552 ) {
8553 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8554 s.move_heads_with(|map, head, _| {
8555 (
8556 movement::previous_word_start(map, head),
8557 SelectionGoal::None,
8558 )
8559 });
8560 })
8561 }
8562
8563 pub fn select_to_previous_subword_start(
8564 &mut self,
8565 _: &SelectToPreviousSubwordStart,
8566 window: &mut Window,
8567 cx: &mut Context<Self>,
8568 ) {
8569 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8570 s.move_heads_with(|map, head, _| {
8571 (
8572 movement::previous_subword_start(map, head),
8573 SelectionGoal::None,
8574 )
8575 });
8576 })
8577 }
8578
8579 pub fn delete_to_previous_word_start(
8580 &mut self,
8581 action: &DeleteToPreviousWordStart,
8582 window: &mut Window,
8583 cx: &mut Context<Self>,
8584 ) {
8585 self.transact(window, cx, |this, window, cx| {
8586 this.select_autoclose_pair(window, cx);
8587 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8588 let line_mode = s.line_mode;
8589 s.move_with(|map, selection| {
8590 if selection.is_empty() && !line_mode {
8591 let cursor = if action.ignore_newlines {
8592 movement::previous_word_start(map, selection.head())
8593 } else {
8594 movement::previous_word_start_or_newline(map, selection.head())
8595 };
8596 selection.set_head(cursor, SelectionGoal::None);
8597 }
8598 });
8599 });
8600 this.insert("", window, cx);
8601 });
8602 }
8603
8604 pub fn delete_to_previous_subword_start(
8605 &mut self,
8606 _: &DeleteToPreviousSubwordStart,
8607 window: &mut Window,
8608 cx: &mut Context<Self>,
8609 ) {
8610 self.transact(window, cx, |this, window, cx| {
8611 this.select_autoclose_pair(window, cx);
8612 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8613 let line_mode = s.line_mode;
8614 s.move_with(|map, selection| {
8615 if selection.is_empty() && !line_mode {
8616 let cursor = movement::previous_subword_start(map, selection.head());
8617 selection.set_head(cursor, SelectionGoal::None);
8618 }
8619 });
8620 });
8621 this.insert("", window, cx);
8622 });
8623 }
8624
8625 pub fn move_to_next_word_end(
8626 &mut self,
8627 _: &MoveToNextWordEnd,
8628 window: &mut Window,
8629 cx: &mut Context<Self>,
8630 ) {
8631 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8632 s.move_cursors_with(|map, head, _| {
8633 (movement::next_word_end(map, head), SelectionGoal::None)
8634 });
8635 })
8636 }
8637
8638 pub fn move_to_next_subword_end(
8639 &mut self,
8640 _: &MoveToNextSubwordEnd,
8641 window: &mut Window,
8642 cx: &mut Context<Self>,
8643 ) {
8644 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8645 s.move_cursors_with(|map, head, _| {
8646 (movement::next_subword_end(map, head), SelectionGoal::None)
8647 });
8648 })
8649 }
8650
8651 pub fn select_to_next_word_end(
8652 &mut self,
8653 _: &SelectToNextWordEnd,
8654 window: &mut Window,
8655 cx: &mut Context<Self>,
8656 ) {
8657 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8658 s.move_heads_with(|map, head, _| {
8659 (movement::next_word_end(map, head), SelectionGoal::None)
8660 });
8661 })
8662 }
8663
8664 pub fn select_to_next_subword_end(
8665 &mut self,
8666 _: &SelectToNextSubwordEnd,
8667 window: &mut Window,
8668 cx: &mut Context<Self>,
8669 ) {
8670 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8671 s.move_heads_with(|map, head, _| {
8672 (movement::next_subword_end(map, head), SelectionGoal::None)
8673 });
8674 })
8675 }
8676
8677 pub fn delete_to_next_word_end(
8678 &mut self,
8679 action: &DeleteToNextWordEnd,
8680 window: &mut Window,
8681 cx: &mut Context<Self>,
8682 ) {
8683 self.transact(window, cx, |this, window, cx| {
8684 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8685 let line_mode = s.line_mode;
8686 s.move_with(|map, selection| {
8687 if selection.is_empty() && !line_mode {
8688 let cursor = if action.ignore_newlines {
8689 movement::next_word_end(map, selection.head())
8690 } else {
8691 movement::next_word_end_or_newline(map, selection.head())
8692 };
8693 selection.set_head(cursor, SelectionGoal::None);
8694 }
8695 });
8696 });
8697 this.insert("", window, cx);
8698 });
8699 }
8700
8701 pub fn delete_to_next_subword_end(
8702 &mut self,
8703 _: &DeleteToNextSubwordEnd,
8704 window: &mut Window,
8705 cx: &mut Context<Self>,
8706 ) {
8707 self.transact(window, cx, |this, window, cx| {
8708 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8709 s.move_with(|map, selection| {
8710 if selection.is_empty() {
8711 let cursor = movement::next_subword_end(map, selection.head());
8712 selection.set_head(cursor, SelectionGoal::None);
8713 }
8714 });
8715 });
8716 this.insert("", window, cx);
8717 });
8718 }
8719
8720 pub fn move_to_beginning_of_line(
8721 &mut self,
8722 action: &MoveToBeginningOfLine,
8723 window: &mut Window,
8724 cx: &mut Context<Self>,
8725 ) {
8726 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8727 s.move_cursors_with(|map, head, _| {
8728 (
8729 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8730 SelectionGoal::None,
8731 )
8732 });
8733 })
8734 }
8735
8736 pub fn select_to_beginning_of_line(
8737 &mut self,
8738 action: &SelectToBeginningOfLine,
8739 window: &mut Window,
8740 cx: &mut Context<Self>,
8741 ) {
8742 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8743 s.move_heads_with(|map, head, _| {
8744 (
8745 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8746 SelectionGoal::None,
8747 )
8748 });
8749 });
8750 }
8751
8752 pub fn delete_to_beginning_of_line(
8753 &mut self,
8754 _: &DeleteToBeginningOfLine,
8755 window: &mut Window,
8756 cx: &mut Context<Self>,
8757 ) {
8758 self.transact(window, cx, |this, window, cx| {
8759 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8760 s.move_with(|_, selection| {
8761 selection.reversed = true;
8762 });
8763 });
8764
8765 this.select_to_beginning_of_line(
8766 &SelectToBeginningOfLine {
8767 stop_at_soft_wraps: false,
8768 },
8769 window,
8770 cx,
8771 );
8772 this.backspace(&Backspace, window, cx);
8773 });
8774 }
8775
8776 pub fn move_to_end_of_line(
8777 &mut self,
8778 action: &MoveToEndOfLine,
8779 window: &mut Window,
8780 cx: &mut Context<Self>,
8781 ) {
8782 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8783 s.move_cursors_with(|map, head, _| {
8784 (
8785 movement::line_end(map, head, action.stop_at_soft_wraps),
8786 SelectionGoal::None,
8787 )
8788 });
8789 })
8790 }
8791
8792 pub fn select_to_end_of_line(
8793 &mut self,
8794 action: &SelectToEndOfLine,
8795 window: &mut Window,
8796 cx: &mut Context<Self>,
8797 ) {
8798 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8799 s.move_heads_with(|map, head, _| {
8800 (
8801 movement::line_end(map, head, action.stop_at_soft_wraps),
8802 SelectionGoal::None,
8803 )
8804 });
8805 })
8806 }
8807
8808 pub fn delete_to_end_of_line(
8809 &mut self,
8810 _: &DeleteToEndOfLine,
8811 window: &mut Window,
8812 cx: &mut Context<Self>,
8813 ) {
8814 self.transact(window, cx, |this, window, cx| {
8815 this.select_to_end_of_line(
8816 &SelectToEndOfLine {
8817 stop_at_soft_wraps: false,
8818 },
8819 window,
8820 cx,
8821 );
8822 this.delete(&Delete, window, cx);
8823 });
8824 }
8825
8826 pub fn cut_to_end_of_line(
8827 &mut self,
8828 _: &CutToEndOfLine,
8829 window: &mut Window,
8830 cx: &mut Context<Self>,
8831 ) {
8832 self.transact(window, cx, |this, window, cx| {
8833 this.select_to_end_of_line(
8834 &SelectToEndOfLine {
8835 stop_at_soft_wraps: false,
8836 },
8837 window,
8838 cx,
8839 );
8840 this.cut(&Cut, window, cx);
8841 });
8842 }
8843
8844 pub fn move_to_start_of_paragraph(
8845 &mut self,
8846 _: &MoveToStartOfParagraph,
8847 window: &mut Window,
8848 cx: &mut Context<Self>,
8849 ) {
8850 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8851 cx.propagate();
8852 return;
8853 }
8854
8855 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8856 s.move_with(|map, selection| {
8857 selection.collapse_to(
8858 movement::start_of_paragraph(map, selection.head(), 1),
8859 SelectionGoal::None,
8860 )
8861 });
8862 })
8863 }
8864
8865 pub fn move_to_end_of_paragraph(
8866 &mut self,
8867 _: &MoveToEndOfParagraph,
8868 window: &mut Window,
8869 cx: &mut Context<Self>,
8870 ) {
8871 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8872 cx.propagate();
8873 return;
8874 }
8875
8876 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8877 s.move_with(|map, selection| {
8878 selection.collapse_to(
8879 movement::end_of_paragraph(map, selection.head(), 1),
8880 SelectionGoal::None,
8881 )
8882 });
8883 })
8884 }
8885
8886 pub fn select_to_start_of_paragraph(
8887 &mut self,
8888 _: &SelectToStartOfParagraph,
8889 window: &mut Window,
8890 cx: &mut Context<Self>,
8891 ) {
8892 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8893 cx.propagate();
8894 return;
8895 }
8896
8897 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8898 s.move_heads_with(|map, head, _| {
8899 (
8900 movement::start_of_paragraph(map, head, 1),
8901 SelectionGoal::None,
8902 )
8903 });
8904 })
8905 }
8906
8907 pub fn select_to_end_of_paragraph(
8908 &mut self,
8909 _: &SelectToEndOfParagraph,
8910 window: &mut Window,
8911 cx: &mut Context<Self>,
8912 ) {
8913 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8914 cx.propagate();
8915 return;
8916 }
8917
8918 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8919 s.move_heads_with(|map, head, _| {
8920 (
8921 movement::end_of_paragraph(map, head, 1),
8922 SelectionGoal::None,
8923 )
8924 });
8925 })
8926 }
8927
8928 pub fn move_to_beginning(
8929 &mut self,
8930 _: &MoveToBeginning,
8931 window: &mut Window,
8932 cx: &mut Context<Self>,
8933 ) {
8934 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8935 cx.propagate();
8936 return;
8937 }
8938
8939 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8940 s.select_ranges(vec![0..0]);
8941 });
8942 }
8943
8944 pub fn select_to_beginning(
8945 &mut self,
8946 _: &SelectToBeginning,
8947 window: &mut Window,
8948 cx: &mut Context<Self>,
8949 ) {
8950 let mut selection = self.selections.last::<Point>(cx);
8951 selection.set_head(Point::zero(), SelectionGoal::None);
8952
8953 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8954 s.select(vec![selection]);
8955 });
8956 }
8957
8958 pub fn move_to_end(&mut self, _: &MoveToEnd, window: &mut Window, cx: &mut Context<Self>) {
8959 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8960 cx.propagate();
8961 return;
8962 }
8963
8964 let cursor = self.buffer.read(cx).read(cx).len();
8965 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8966 s.select_ranges(vec![cursor..cursor])
8967 });
8968 }
8969
8970 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8971 self.nav_history = nav_history;
8972 }
8973
8974 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8975 self.nav_history.as_ref()
8976 }
8977
8978 fn push_to_nav_history(
8979 &mut self,
8980 cursor_anchor: Anchor,
8981 new_position: Option<Point>,
8982 cx: &mut Context<Self>,
8983 ) {
8984 if let Some(nav_history) = self.nav_history.as_mut() {
8985 let buffer = self.buffer.read(cx).read(cx);
8986 let cursor_position = cursor_anchor.to_point(&buffer);
8987 let scroll_state = self.scroll_manager.anchor();
8988 let scroll_top_row = scroll_state.top_row(&buffer);
8989 drop(buffer);
8990
8991 if let Some(new_position) = new_position {
8992 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8993 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8994 return;
8995 }
8996 }
8997
8998 nav_history.push(
8999 Some(NavigationData {
9000 cursor_anchor,
9001 cursor_position,
9002 scroll_anchor: scroll_state,
9003 scroll_top_row,
9004 }),
9005 cx,
9006 );
9007 }
9008 }
9009
9010 pub fn select_to_end(&mut self, _: &SelectToEnd, window: &mut Window, cx: &mut Context<Self>) {
9011 let buffer = self.buffer.read(cx).snapshot(cx);
9012 let mut selection = self.selections.first::<usize>(cx);
9013 selection.set_head(buffer.len(), SelectionGoal::None);
9014 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9015 s.select(vec![selection]);
9016 });
9017 }
9018
9019 pub fn select_all(&mut self, _: &SelectAll, window: &mut Window, cx: &mut Context<Self>) {
9020 let end = self.buffer.read(cx).read(cx).len();
9021 self.change_selections(None, window, cx, |s| {
9022 s.select_ranges(vec![0..end]);
9023 });
9024 }
9025
9026 pub fn select_line(&mut self, _: &SelectLine, window: &mut Window, cx: &mut Context<Self>) {
9027 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9028 let mut selections = self.selections.all::<Point>(cx);
9029 let max_point = display_map.buffer_snapshot.max_point();
9030 for selection in &mut selections {
9031 let rows = selection.spanned_rows(true, &display_map);
9032 selection.start = Point::new(rows.start.0, 0);
9033 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
9034 selection.reversed = false;
9035 }
9036 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9037 s.select(selections);
9038 });
9039 }
9040
9041 pub fn split_selection_into_lines(
9042 &mut self,
9043 _: &SplitSelectionIntoLines,
9044 window: &mut Window,
9045 cx: &mut Context<Self>,
9046 ) {
9047 let mut to_unfold = Vec::new();
9048 let mut new_selection_ranges = Vec::new();
9049 {
9050 let selections = self.selections.all::<Point>(cx);
9051 let buffer = self.buffer.read(cx).read(cx);
9052 for selection in selections {
9053 for row in selection.start.row..selection.end.row {
9054 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
9055 new_selection_ranges.push(cursor..cursor);
9056 }
9057 new_selection_ranges.push(selection.end..selection.end);
9058 to_unfold.push(selection.start..selection.end);
9059 }
9060 }
9061 self.unfold_ranges(&to_unfold, true, true, cx);
9062 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9063 s.select_ranges(new_selection_ranges);
9064 });
9065 }
9066
9067 pub fn add_selection_above(
9068 &mut self,
9069 _: &AddSelectionAbove,
9070 window: &mut Window,
9071 cx: &mut Context<Self>,
9072 ) {
9073 self.add_selection(true, window, cx);
9074 }
9075
9076 pub fn add_selection_below(
9077 &mut self,
9078 _: &AddSelectionBelow,
9079 window: &mut Window,
9080 cx: &mut Context<Self>,
9081 ) {
9082 self.add_selection(false, window, cx);
9083 }
9084
9085 fn add_selection(&mut self, above: bool, window: &mut Window, cx: &mut Context<Self>) {
9086 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9087 let mut selections = self.selections.all::<Point>(cx);
9088 let text_layout_details = self.text_layout_details(window);
9089 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
9090 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
9091 let range = oldest_selection.display_range(&display_map).sorted();
9092
9093 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
9094 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
9095 let positions = start_x.min(end_x)..start_x.max(end_x);
9096
9097 selections.clear();
9098 let mut stack = Vec::new();
9099 for row in range.start.row().0..=range.end.row().0 {
9100 if let Some(selection) = self.selections.build_columnar_selection(
9101 &display_map,
9102 DisplayRow(row),
9103 &positions,
9104 oldest_selection.reversed,
9105 &text_layout_details,
9106 ) {
9107 stack.push(selection.id);
9108 selections.push(selection);
9109 }
9110 }
9111
9112 if above {
9113 stack.reverse();
9114 }
9115
9116 AddSelectionsState { above, stack }
9117 });
9118
9119 let last_added_selection = *state.stack.last().unwrap();
9120 let mut new_selections = Vec::new();
9121 if above == state.above {
9122 let end_row = if above {
9123 DisplayRow(0)
9124 } else {
9125 display_map.max_point().row()
9126 };
9127
9128 'outer: for selection in selections {
9129 if selection.id == last_added_selection {
9130 let range = selection.display_range(&display_map).sorted();
9131 debug_assert_eq!(range.start.row(), range.end.row());
9132 let mut row = range.start.row();
9133 let positions =
9134 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
9135 px(start)..px(end)
9136 } else {
9137 let start_x =
9138 display_map.x_for_display_point(range.start, &text_layout_details);
9139 let end_x =
9140 display_map.x_for_display_point(range.end, &text_layout_details);
9141 start_x.min(end_x)..start_x.max(end_x)
9142 };
9143
9144 while row != end_row {
9145 if above {
9146 row.0 -= 1;
9147 } else {
9148 row.0 += 1;
9149 }
9150
9151 if let Some(new_selection) = self.selections.build_columnar_selection(
9152 &display_map,
9153 row,
9154 &positions,
9155 selection.reversed,
9156 &text_layout_details,
9157 ) {
9158 state.stack.push(new_selection.id);
9159 if above {
9160 new_selections.push(new_selection);
9161 new_selections.push(selection);
9162 } else {
9163 new_selections.push(selection);
9164 new_selections.push(new_selection);
9165 }
9166
9167 continue 'outer;
9168 }
9169 }
9170 }
9171
9172 new_selections.push(selection);
9173 }
9174 } else {
9175 new_selections = selections;
9176 new_selections.retain(|s| s.id != last_added_selection);
9177 state.stack.pop();
9178 }
9179
9180 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9181 s.select(new_selections);
9182 });
9183 if state.stack.len() > 1 {
9184 self.add_selections_state = Some(state);
9185 }
9186 }
9187
9188 pub fn select_next_match_internal(
9189 &mut self,
9190 display_map: &DisplaySnapshot,
9191 replace_newest: bool,
9192 autoscroll: Option<Autoscroll>,
9193 window: &mut Window,
9194 cx: &mut Context<Self>,
9195 ) -> Result<()> {
9196 fn select_next_match_ranges(
9197 this: &mut Editor,
9198 range: Range<usize>,
9199 replace_newest: bool,
9200 auto_scroll: Option<Autoscroll>,
9201 window: &mut Window,
9202 cx: &mut Context<Editor>,
9203 ) {
9204 this.unfold_ranges(&[range.clone()], false, true, cx);
9205 this.change_selections(auto_scroll, window, cx, |s| {
9206 if replace_newest {
9207 s.delete(s.newest_anchor().id);
9208 }
9209 s.insert_range(range.clone());
9210 });
9211 }
9212
9213 let buffer = &display_map.buffer_snapshot;
9214 let mut selections = self.selections.all::<usize>(cx);
9215 if let Some(mut select_next_state) = self.select_next_state.take() {
9216 let query = &select_next_state.query;
9217 if !select_next_state.done {
9218 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
9219 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
9220 let mut next_selected_range = None;
9221
9222 let bytes_after_last_selection =
9223 buffer.bytes_in_range(last_selection.end..buffer.len());
9224 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
9225 let query_matches = query
9226 .stream_find_iter(bytes_after_last_selection)
9227 .map(|result| (last_selection.end, result))
9228 .chain(
9229 query
9230 .stream_find_iter(bytes_before_first_selection)
9231 .map(|result| (0, result)),
9232 );
9233
9234 for (start_offset, query_match) in query_matches {
9235 let query_match = query_match.unwrap(); // can only fail due to I/O
9236 let offset_range =
9237 start_offset + query_match.start()..start_offset + query_match.end();
9238 let display_range = offset_range.start.to_display_point(display_map)
9239 ..offset_range.end.to_display_point(display_map);
9240
9241 if !select_next_state.wordwise
9242 || (!movement::is_inside_word(display_map, display_range.start)
9243 && !movement::is_inside_word(display_map, display_range.end))
9244 {
9245 // TODO: This is n^2, because we might check all the selections
9246 if !selections
9247 .iter()
9248 .any(|selection| selection.range().overlaps(&offset_range))
9249 {
9250 next_selected_range = Some(offset_range);
9251 break;
9252 }
9253 }
9254 }
9255
9256 if let Some(next_selected_range) = next_selected_range {
9257 select_next_match_ranges(
9258 self,
9259 next_selected_range,
9260 replace_newest,
9261 autoscroll,
9262 window,
9263 cx,
9264 );
9265 } else {
9266 select_next_state.done = true;
9267 }
9268 }
9269
9270 self.select_next_state = Some(select_next_state);
9271 } else {
9272 let mut only_carets = true;
9273 let mut same_text_selected = true;
9274 let mut selected_text = None;
9275
9276 let mut selections_iter = selections.iter().peekable();
9277 while let Some(selection) = selections_iter.next() {
9278 if selection.start != selection.end {
9279 only_carets = false;
9280 }
9281
9282 if same_text_selected {
9283 if selected_text.is_none() {
9284 selected_text =
9285 Some(buffer.text_for_range(selection.range()).collect::<String>());
9286 }
9287
9288 if let Some(next_selection) = selections_iter.peek() {
9289 if next_selection.range().len() == selection.range().len() {
9290 let next_selected_text = buffer
9291 .text_for_range(next_selection.range())
9292 .collect::<String>();
9293 if Some(next_selected_text) != selected_text {
9294 same_text_selected = false;
9295 selected_text = None;
9296 }
9297 } else {
9298 same_text_selected = false;
9299 selected_text = None;
9300 }
9301 }
9302 }
9303 }
9304
9305 if only_carets {
9306 for selection in &mut selections {
9307 let word_range = movement::surrounding_word(
9308 display_map,
9309 selection.start.to_display_point(display_map),
9310 );
9311 selection.start = word_range.start.to_offset(display_map, Bias::Left);
9312 selection.end = word_range.end.to_offset(display_map, Bias::Left);
9313 selection.goal = SelectionGoal::None;
9314 selection.reversed = false;
9315 select_next_match_ranges(
9316 self,
9317 selection.start..selection.end,
9318 replace_newest,
9319 autoscroll,
9320 window,
9321 cx,
9322 );
9323 }
9324
9325 if selections.len() == 1 {
9326 let selection = selections
9327 .last()
9328 .expect("ensured that there's only one selection");
9329 let query = buffer
9330 .text_for_range(selection.start..selection.end)
9331 .collect::<String>();
9332 let is_empty = query.is_empty();
9333 let select_state = SelectNextState {
9334 query: AhoCorasick::new(&[query])?,
9335 wordwise: true,
9336 done: is_empty,
9337 };
9338 self.select_next_state = Some(select_state);
9339 } else {
9340 self.select_next_state = None;
9341 }
9342 } else if let Some(selected_text) = selected_text {
9343 self.select_next_state = Some(SelectNextState {
9344 query: AhoCorasick::new(&[selected_text])?,
9345 wordwise: false,
9346 done: false,
9347 });
9348 self.select_next_match_internal(
9349 display_map,
9350 replace_newest,
9351 autoscroll,
9352 window,
9353 cx,
9354 )?;
9355 }
9356 }
9357 Ok(())
9358 }
9359
9360 pub fn select_all_matches(
9361 &mut self,
9362 _action: &SelectAllMatches,
9363 window: &mut Window,
9364 cx: &mut Context<Self>,
9365 ) -> Result<()> {
9366 self.push_to_selection_history();
9367 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9368
9369 self.select_next_match_internal(&display_map, false, None, window, cx)?;
9370 let Some(select_next_state) = self.select_next_state.as_mut() else {
9371 return Ok(());
9372 };
9373 if select_next_state.done {
9374 return Ok(());
9375 }
9376
9377 let mut new_selections = self.selections.all::<usize>(cx);
9378
9379 let buffer = &display_map.buffer_snapshot;
9380 let query_matches = select_next_state
9381 .query
9382 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
9383
9384 for query_match in query_matches {
9385 let query_match = query_match.unwrap(); // can only fail due to I/O
9386 let offset_range = query_match.start()..query_match.end();
9387 let display_range = offset_range.start.to_display_point(&display_map)
9388 ..offset_range.end.to_display_point(&display_map);
9389
9390 if !select_next_state.wordwise
9391 || (!movement::is_inside_word(&display_map, display_range.start)
9392 && !movement::is_inside_word(&display_map, display_range.end))
9393 {
9394 self.selections.change_with(cx, |selections| {
9395 new_selections.push(Selection {
9396 id: selections.new_selection_id(),
9397 start: offset_range.start,
9398 end: offset_range.end,
9399 reversed: false,
9400 goal: SelectionGoal::None,
9401 });
9402 });
9403 }
9404 }
9405
9406 new_selections.sort_by_key(|selection| selection.start);
9407 let mut ix = 0;
9408 while ix + 1 < new_selections.len() {
9409 let current_selection = &new_selections[ix];
9410 let next_selection = &new_selections[ix + 1];
9411 if current_selection.range().overlaps(&next_selection.range()) {
9412 if current_selection.id < next_selection.id {
9413 new_selections.remove(ix + 1);
9414 } else {
9415 new_selections.remove(ix);
9416 }
9417 } else {
9418 ix += 1;
9419 }
9420 }
9421
9422 let reversed = self.selections.oldest::<usize>(cx).reversed;
9423
9424 for selection in new_selections.iter_mut() {
9425 selection.reversed = reversed;
9426 }
9427
9428 select_next_state.done = true;
9429 self.unfold_ranges(
9430 &new_selections
9431 .iter()
9432 .map(|selection| selection.range())
9433 .collect::<Vec<_>>(),
9434 false,
9435 false,
9436 cx,
9437 );
9438 self.change_selections(Some(Autoscroll::fit()), window, cx, |selections| {
9439 selections.select(new_selections)
9440 });
9441
9442 Ok(())
9443 }
9444
9445 pub fn select_next(
9446 &mut self,
9447 action: &SelectNext,
9448 window: &mut Window,
9449 cx: &mut Context<Self>,
9450 ) -> Result<()> {
9451 self.push_to_selection_history();
9452 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9453 self.select_next_match_internal(
9454 &display_map,
9455 action.replace_newest,
9456 Some(Autoscroll::newest()),
9457 window,
9458 cx,
9459 )?;
9460 Ok(())
9461 }
9462
9463 pub fn select_previous(
9464 &mut self,
9465 action: &SelectPrevious,
9466 window: &mut Window,
9467 cx: &mut Context<Self>,
9468 ) -> Result<()> {
9469 self.push_to_selection_history();
9470 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9471 let buffer = &display_map.buffer_snapshot;
9472 let mut selections = self.selections.all::<usize>(cx);
9473 if let Some(mut select_prev_state) = self.select_prev_state.take() {
9474 let query = &select_prev_state.query;
9475 if !select_prev_state.done {
9476 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
9477 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
9478 let mut next_selected_range = None;
9479 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
9480 let bytes_before_last_selection =
9481 buffer.reversed_bytes_in_range(0..last_selection.start);
9482 let bytes_after_first_selection =
9483 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
9484 let query_matches = query
9485 .stream_find_iter(bytes_before_last_selection)
9486 .map(|result| (last_selection.start, result))
9487 .chain(
9488 query
9489 .stream_find_iter(bytes_after_first_selection)
9490 .map(|result| (buffer.len(), result)),
9491 );
9492 for (end_offset, query_match) in query_matches {
9493 let query_match = query_match.unwrap(); // can only fail due to I/O
9494 let offset_range =
9495 end_offset - query_match.end()..end_offset - query_match.start();
9496 let display_range = offset_range.start.to_display_point(&display_map)
9497 ..offset_range.end.to_display_point(&display_map);
9498
9499 if !select_prev_state.wordwise
9500 || (!movement::is_inside_word(&display_map, display_range.start)
9501 && !movement::is_inside_word(&display_map, display_range.end))
9502 {
9503 next_selected_range = Some(offset_range);
9504 break;
9505 }
9506 }
9507
9508 if let Some(next_selected_range) = next_selected_range {
9509 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
9510 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
9511 if action.replace_newest {
9512 s.delete(s.newest_anchor().id);
9513 }
9514 s.insert_range(next_selected_range);
9515 });
9516 } else {
9517 select_prev_state.done = true;
9518 }
9519 }
9520
9521 self.select_prev_state = Some(select_prev_state);
9522 } else {
9523 let mut only_carets = true;
9524 let mut same_text_selected = true;
9525 let mut selected_text = None;
9526
9527 let mut selections_iter = selections.iter().peekable();
9528 while let Some(selection) = selections_iter.next() {
9529 if selection.start != selection.end {
9530 only_carets = false;
9531 }
9532
9533 if same_text_selected {
9534 if selected_text.is_none() {
9535 selected_text =
9536 Some(buffer.text_for_range(selection.range()).collect::<String>());
9537 }
9538
9539 if let Some(next_selection) = selections_iter.peek() {
9540 if next_selection.range().len() == selection.range().len() {
9541 let next_selected_text = buffer
9542 .text_for_range(next_selection.range())
9543 .collect::<String>();
9544 if Some(next_selected_text) != selected_text {
9545 same_text_selected = false;
9546 selected_text = None;
9547 }
9548 } else {
9549 same_text_selected = false;
9550 selected_text = None;
9551 }
9552 }
9553 }
9554 }
9555
9556 if only_carets {
9557 for selection in &mut selections {
9558 let word_range = movement::surrounding_word(
9559 &display_map,
9560 selection.start.to_display_point(&display_map),
9561 );
9562 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
9563 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
9564 selection.goal = SelectionGoal::None;
9565 selection.reversed = false;
9566 }
9567 if selections.len() == 1 {
9568 let selection = selections
9569 .last()
9570 .expect("ensured that there's only one selection");
9571 let query = buffer
9572 .text_for_range(selection.start..selection.end)
9573 .collect::<String>();
9574 let is_empty = query.is_empty();
9575 let select_state = SelectNextState {
9576 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
9577 wordwise: true,
9578 done: is_empty,
9579 };
9580 self.select_prev_state = Some(select_state);
9581 } else {
9582 self.select_prev_state = None;
9583 }
9584
9585 self.unfold_ranges(
9586 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
9587 false,
9588 true,
9589 cx,
9590 );
9591 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
9592 s.select(selections);
9593 });
9594 } else if let Some(selected_text) = selected_text {
9595 self.select_prev_state = Some(SelectNextState {
9596 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
9597 wordwise: false,
9598 done: false,
9599 });
9600 self.select_previous(action, window, cx)?;
9601 }
9602 }
9603 Ok(())
9604 }
9605
9606 pub fn toggle_comments(
9607 &mut self,
9608 action: &ToggleComments,
9609 window: &mut Window,
9610 cx: &mut Context<Self>,
9611 ) {
9612 if self.read_only(cx) {
9613 return;
9614 }
9615 let text_layout_details = &self.text_layout_details(window);
9616 self.transact(window, cx, |this, window, cx| {
9617 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
9618 let mut edits = Vec::new();
9619 let mut selection_edit_ranges = Vec::new();
9620 let mut last_toggled_row = None;
9621 let snapshot = this.buffer.read(cx).read(cx);
9622 let empty_str: Arc<str> = Arc::default();
9623 let mut suffixes_inserted = Vec::new();
9624 let ignore_indent = action.ignore_indent;
9625
9626 fn comment_prefix_range(
9627 snapshot: &MultiBufferSnapshot,
9628 row: MultiBufferRow,
9629 comment_prefix: &str,
9630 comment_prefix_whitespace: &str,
9631 ignore_indent: bool,
9632 ) -> Range<Point> {
9633 let indent_size = if ignore_indent {
9634 0
9635 } else {
9636 snapshot.indent_size_for_line(row).len
9637 };
9638
9639 let start = Point::new(row.0, indent_size);
9640
9641 let mut line_bytes = snapshot
9642 .bytes_in_range(start..snapshot.max_point())
9643 .flatten()
9644 .copied();
9645
9646 // If this line currently begins with the line comment prefix, then record
9647 // the range containing the prefix.
9648 if line_bytes
9649 .by_ref()
9650 .take(comment_prefix.len())
9651 .eq(comment_prefix.bytes())
9652 {
9653 // Include any whitespace that matches the comment prefix.
9654 let matching_whitespace_len = line_bytes
9655 .zip(comment_prefix_whitespace.bytes())
9656 .take_while(|(a, b)| a == b)
9657 .count() as u32;
9658 let end = Point::new(
9659 start.row,
9660 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9661 );
9662 start..end
9663 } else {
9664 start..start
9665 }
9666 }
9667
9668 fn comment_suffix_range(
9669 snapshot: &MultiBufferSnapshot,
9670 row: MultiBufferRow,
9671 comment_suffix: &str,
9672 comment_suffix_has_leading_space: bool,
9673 ) -> Range<Point> {
9674 let end = Point::new(row.0, snapshot.line_len(row));
9675 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9676
9677 let mut line_end_bytes = snapshot
9678 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9679 .flatten()
9680 .copied();
9681
9682 let leading_space_len = if suffix_start_column > 0
9683 && line_end_bytes.next() == Some(b' ')
9684 && comment_suffix_has_leading_space
9685 {
9686 1
9687 } else {
9688 0
9689 };
9690
9691 // If this line currently begins with the line comment prefix, then record
9692 // the range containing the prefix.
9693 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9694 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9695 start..end
9696 } else {
9697 end..end
9698 }
9699 }
9700
9701 // TODO: Handle selections that cross excerpts
9702 for selection in &mut selections {
9703 let start_column = snapshot
9704 .indent_size_for_line(MultiBufferRow(selection.start.row))
9705 .len;
9706 let language = if let Some(language) =
9707 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9708 {
9709 language
9710 } else {
9711 continue;
9712 };
9713
9714 selection_edit_ranges.clear();
9715
9716 // If multiple selections contain a given row, avoid processing that
9717 // row more than once.
9718 let mut start_row = MultiBufferRow(selection.start.row);
9719 if last_toggled_row == Some(start_row) {
9720 start_row = start_row.next_row();
9721 }
9722 let end_row =
9723 if selection.end.row > selection.start.row && selection.end.column == 0 {
9724 MultiBufferRow(selection.end.row - 1)
9725 } else {
9726 MultiBufferRow(selection.end.row)
9727 };
9728 last_toggled_row = Some(end_row);
9729
9730 if start_row > end_row {
9731 continue;
9732 }
9733
9734 // If the language has line comments, toggle those.
9735 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9736
9737 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9738 if ignore_indent {
9739 full_comment_prefixes = full_comment_prefixes
9740 .into_iter()
9741 .map(|s| Arc::from(s.trim_end()))
9742 .collect();
9743 }
9744
9745 if !full_comment_prefixes.is_empty() {
9746 let first_prefix = full_comment_prefixes
9747 .first()
9748 .expect("prefixes is non-empty");
9749 let prefix_trimmed_lengths = full_comment_prefixes
9750 .iter()
9751 .map(|p| p.trim_end_matches(' ').len())
9752 .collect::<SmallVec<[usize; 4]>>();
9753
9754 let mut all_selection_lines_are_comments = true;
9755
9756 for row in start_row.0..=end_row.0 {
9757 let row = MultiBufferRow(row);
9758 if start_row < end_row && snapshot.is_line_blank(row) {
9759 continue;
9760 }
9761
9762 let prefix_range = full_comment_prefixes
9763 .iter()
9764 .zip(prefix_trimmed_lengths.iter().copied())
9765 .map(|(prefix, trimmed_prefix_len)| {
9766 comment_prefix_range(
9767 snapshot.deref(),
9768 row,
9769 &prefix[..trimmed_prefix_len],
9770 &prefix[trimmed_prefix_len..],
9771 ignore_indent,
9772 )
9773 })
9774 .max_by_key(|range| range.end.column - range.start.column)
9775 .expect("prefixes is non-empty");
9776
9777 if prefix_range.is_empty() {
9778 all_selection_lines_are_comments = false;
9779 }
9780
9781 selection_edit_ranges.push(prefix_range);
9782 }
9783
9784 if all_selection_lines_are_comments {
9785 edits.extend(
9786 selection_edit_ranges
9787 .iter()
9788 .cloned()
9789 .map(|range| (range, empty_str.clone())),
9790 );
9791 } else {
9792 let min_column = selection_edit_ranges
9793 .iter()
9794 .map(|range| range.start.column)
9795 .min()
9796 .unwrap_or(0);
9797 edits.extend(selection_edit_ranges.iter().map(|range| {
9798 let position = Point::new(range.start.row, min_column);
9799 (position..position, first_prefix.clone())
9800 }));
9801 }
9802 } else if let Some((full_comment_prefix, comment_suffix)) =
9803 language.block_comment_delimiters()
9804 {
9805 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9806 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9807 let prefix_range = comment_prefix_range(
9808 snapshot.deref(),
9809 start_row,
9810 comment_prefix,
9811 comment_prefix_whitespace,
9812 ignore_indent,
9813 );
9814 let suffix_range = comment_suffix_range(
9815 snapshot.deref(),
9816 end_row,
9817 comment_suffix.trim_start_matches(' '),
9818 comment_suffix.starts_with(' '),
9819 );
9820
9821 if prefix_range.is_empty() || suffix_range.is_empty() {
9822 edits.push((
9823 prefix_range.start..prefix_range.start,
9824 full_comment_prefix.clone(),
9825 ));
9826 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9827 suffixes_inserted.push((end_row, comment_suffix.len()));
9828 } else {
9829 edits.push((prefix_range, empty_str.clone()));
9830 edits.push((suffix_range, empty_str.clone()));
9831 }
9832 } else {
9833 continue;
9834 }
9835 }
9836
9837 drop(snapshot);
9838 this.buffer.update(cx, |buffer, cx| {
9839 buffer.edit(edits, None, cx);
9840 });
9841
9842 // Adjust selections so that they end before any comment suffixes that
9843 // were inserted.
9844 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9845 let mut selections = this.selections.all::<Point>(cx);
9846 let snapshot = this.buffer.read(cx).read(cx);
9847 for selection in &mut selections {
9848 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9849 match row.cmp(&MultiBufferRow(selection.end.row)) {
9850 Ordering::Less => {
9851 suffixes_inserted.next();
9852 continue;
9853 }
9854 Ordering::Greater => break,
9855 Ordering::Equal => {
9856 if selection.end.column == snapshot.line_len(row) {
9857 if selection.is_empty() {
9858 selection.start.column -= suffix_len as u32;
9859 }
9860 selection.end.column -= suffix_len as u32;
9861 }
9862 break;
9863 }
9864 }
9865 }
9866 }
9867
9868 drop(snapshot);
9869 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9870 s.select(selections)
9871 });
9872
9873 let selections = this.selections.all::<Point>(cx);
9874 let selections_on_single_row = selections.windows(2).all(|selections| {
9875 selections[0].start.row == selections[1].start.row
9876 && selections[0].end.row == selections[1].end.row
9877 && selections[0].start.row == selections[0].end.row
9878 });
9879 let selections_selecting = selections
9880 .iter()
9881 .any(|selection| selection.start != selection.end);
9882 let advance_downwards = action.advance_downwards
9883 && selections_on_single_row
9884 && !selections_selecting
9885 && !matches!(this.mode, EditorMode::SingleLine { .. });
9886
9887 if advance_downwards {
9888 let snapshot = this.buffer.read(cx).snapshot(cx);
9889
9890 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9891 s.move_cursors_with(|display_snapshot, display_point, _| {
9892 let mut point = display_point.to_point(display_snapshot);
9893 point.row += 1;
9894 point = snapshot.clip_point(point, Bias::Left);
9895 let display_point = point.to_display_point(display_snapshot);
9896 let goal = SelectionGoal::HorizontalPosition(
9897 display_snapshot
9898 .x_for_display_point(display_point, text_layout_details)
9899 .into(),
9900 );
9901 (display_point, goal)
9902 })
9903 });
9904 }
9905 });
9906 }
9907
9908 pub fn select_enclosing_symbol(
9909 &mut self,
9910 _: &SelectEnclosingSymbol,
9911 window: &mut Window,
9912 cx: &mut Context<Self>,
9913 ) {
9914 let buffer = self.buffer.read(cx).snapshot(cx);
9915 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9916
9917 fn update_selection(
9918 selection: &Selection<usize>,
9919 buffer_snap: &MultiBufferSnapshot,
9920 ) -> Option<Selection<usize>> {
9921 let cursor = selection.head();
9922 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9923 for symbol in symbols.iter().rev() {
9924 let start = symbol.range.start.to_offset(buffer_snap);
9925 let end = symbol.range.end.to_offset(buffer_snap);
9926 let new_range = start..end;
9927 if start < selection.start || end > selection.end {
9928 return Some(Selection {
9929 id: selection.id,
9930 start: new_range.start,
9931 end: new_range.end,
9932 goal: SelectionGoal::None,
9933 reversed: selection.reversed,
9934 });
9935 }
9936 }
9937 None
9938 }
9939
9940 let mut selected_larger_symbol = false;
9941 let new_selections = old_selections
9942 .iter()
9943 .map(|selection| match update_selection(selection, &buffer) {
9944 Some(new_selection) => {
9945 if new_selection.range() != selection.range() {
9946 selected_larger_symbol = true;
9947 }
9948 new_selection
9949 }
9950 None => selection.clone(),
9951 })
9952 .collect::<Vec<_>>();
9953
9954 if selected_larger_symbol {
9955 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9956 s.select(new_selections);
9957 });
9958 }
9959 }
9960
9961 pub fn select_larger_syntax_node(
9962 &mut self,
9963 _: &SelectLargerSyntaxNode,
9964 window: &mut Window,
9965 cx: &mut Context<Self>,
9966 ) {
9967 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9968 let buffer = self.buffer.read(cx).snapshot(cx);
9969 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9970
9971 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9972 let mut selected_larger_node = false;
9973 let new_selections = old_selections
9974 .iter()
9975 .map(|selection| {
9976 let old_range = selection.start..selection.end;
9977 let mut new_range = old_range.clone();
9978 let mut new_node = None;
9979 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
9980 {
9981 new_node = Some(node);
9982 new_range = containing_range;
9983 if !display_map.intersects_fold(new_range.start)
9984 && !display_map.intersects_fold(new_range.end)
9985 {
9986 break;
9987 }
9988 }
9989
9990 if let Some(node) = new_node {
9991 // Log the ancestor, to support using this action as a way to explore TreeSitter
9992 // nodes. Parent and grandparent are also logged because this operation will not
9993 // visit nodes that have the same range as their parent.
9994 log::info!("Node: {node:?}");
9995 let parent = node.parent();
9996 log::info!("Parent: {parent:?}");
9997 let grandparent = parent.and_then(|x| x.parent());
9998 log::info!("Grandparent: {grandparent:?}");
9999 }
10000
10001 selected_larger_node |= new_range != old_range;
10002 Selection {
10003 id: selection.id,
10004 start: new_range.start,
10005 end: new_range.end,
10006 goal: SelectionGoal::None,
10007 reversed: selection.reversed,
10008 }
10009 })
10010 .collect::<Vec<_>>();
10011
10012 if selected_larger_node {
10013 stack.push(old_selections);
10014 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10015 s.select(new_selections);
10016 });
10017 }
10018 self.select_larger_syntax_node_stack = stack;
10019 }
10020
10021 pub fn select_smaller_syntax_node(
10022 &mut self,
10023 _: &SelectSmallerSyntaxNode,
10024 window: &mut Window,
10025 cx: &mut Context<Self>,
10026 ) {
10027 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
10028 if let Some(selections) = stack.pop() {
10029 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10030 s.select(selections.to_vec());
10031 });
10032 }
10033 self.select_larger_syntax_node_stack = stack;
10034 }
10035
10036 fn refresh_runnables(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Task<()> {
10037 if !EditorSettings::get_global(cx).gutter.runnables {
10038 self.clear_tasks();
10039 return Task::ready(());
10040 }
10041 let project = self.project.as_ref().map(Entity::downgrade);
10042 cx.spawn_in(window, |this, mut cx| async move {
10043 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
10044 let Some(project) = project.and_then(|p| p.upgrade()) else {
10045 return;
10046 };
10047 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
10048 this.display_map.update(cx, |map, cx| map.snapshot(cx))
10049 }) else {
10050 return;
10051 };
10052
10053 let hide_runnables = project
10054 .update(&mut cx, |project, cx| {
10055 // Do not display any test indicators in non-dev server remote projects.
10056 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
10057 })
10058 .unwrap_or(true);
10059 if hide_runnables {
10060 return;
10061 }
10062 let new_rows =
10063 cx.background_executor()
10064 .spawn({
10065 let snapshot = display_snapshot.clone();
10066 async move {
10067 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
10068 }
10069 })
10070 .await;
10071
10072 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
10073 this.update(&mut cx, |this, _| {
10074 this.clear_tasks();
10075 for (key, value) in rows {
10076 this.insert_tasks(key, value);
10077 }
10078 })
10079 .ok();
10080 })
10081 }
10082 fn fetch_runnable_ranges(
10083 snapshot: &DisplaySnapshot,
10084 range: Range<Anchor>,
10085 ) -> Vec<language::RunnableRange> {
10086 snapshot.buffer_snapshot.runnable_ranges(range).collect()
10087 }
10088
10089 fn runnable_rows(
10090 project: Entity<Project>,
10091 snapshot: DisplaySnapshot,
10092 runnable_ranges: Vec<RunnableRange>,
10093 mut cx: AsyncWindowContext,
10094 ) -> Vec<((BufferId, u32), RunnableTasks)> {
10095 runnable_ranges
10096 .into_iter()
10097 .filter_map(|mut runnable| {
10098 let tasks = cx
10099 .update(|_, cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
10100 .ok()?;
10101 if tasks.is_empty() {
10102 return None;
10103 }
10104
10105 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
10106
10107 let row = snapshot
10108 .buffer_snapshot
10109 .buffer_line_for_row(MultiBufferRow(point.row))?
10110 .1
10111 .start
10112 .row;
10113
10114 let context_range =
10115 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
10116 Some((
10117 (runnable.buffer_id, row),
10118 RunnableTasks {
10119 templates: tasks,
10120 offset: MultiBufferOffset(runnable.run_range.start),
10121 context_range,
10122 column: point.column,
10123 extra_variables: runnable.extra_captures,
10124 },
10125 ))
10126 })
10127 .collect()
10128 }
10129
10130 fn templates_with_tags(
10131 project: &Entity<Project>,
10132 runnable: &mut Runnable,
10133 cx: &mut App,
10134 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
10135 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
10136 let (worktree_id, file) = project
10137 .buffer_for_id(runnable.buffer, cx)
10138 .and_then(|buffer| buffer.read(cx).file())
10139 .map(|file| (file.worktree_id(cx), file.clone()))
10140 .unzip();
10141
10142 (
10143 project.task_store().read(cx).task_inventory().cloned(),
10144 worktree_id,
10145 file,
10146 )
10147 });
10148
10149 let tags = mem::take(&mut runnable.tags);
10150 let mut tags: Vec<_> = tags
10151 .into_iter()
10152 .flat_map(|tag| {
10153 let tag = tag.0.clone();
10154 inventory
10155 .as_ref()
10156 .into_iter()
10157 .flat_map(|inventory| {
10158 inventory.read(cx).list_tasks(
10159 file.clone(),
10160 Some(runnable.language.clone()),
10161 worktree_id,
10162 cx,
10163 )
10164 })
10165 .filter(move |(_, template)| {
10166 template.tags.iter().any(|source_tag| source_tag == &tag)
10167 })
10168 })
10169 .sorted_by_key(|(kind, _)| kind.to_owned())
10170 .collect();
10171 if let Some((leading_tag_source, _)) = tags.first() {
10172 // Strongest source wins; if we have worktree tag binding, prefer that to
10173 // global and language bindings;
10174 // if we have a global binding, prefer that to language binding.
10175 let first_mismatch = tags
10176 .iter()
10177 .position(|(tag_source, _)| tag_source != leading_tag_source);
10178 if let Some(index) = first_mismatch {
10179 tags.truncate(index);
10180 }
10181 }
10182
10183 tags
10184 }
10185
10186 pub fn move_to_enclosing_bracket(
10187 &mut self,
10188 _: &MoveToEnclosingBracket,
10189 window: &mut Window,
10190 cx: &mut Context<Self>,
10191 ) {
10192 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10193 s.move_offsets_with(|snapshot, selection| {
10194 let Some(enclosing_bracket_ranges) =
10195 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
10196 else {
10197 return;
10198 };
10199
10200 let mut best_length = usize::MAX;
10201 let mut best_inside = false;
10202 let mut best_in_bracket_range = false;
10203 let mut best_destination = None;
10204 for (open, close) in enclosing_bracket_ranges {
10205 let close = close.to_inclusive();
10206 let length = close.end() - open.start;
10207 let inside = selection.start >= open.end && selection.end <= *close.start();
10208 let in_bracket_range = open.to_inclusive().contains(&selection.head())
10209 || close.contains(&selection.head());
10210
10211 // If best is next to a bracket and current isn't, skip
10212 if !in_bracket_range && best_in_bracket_range {
10213 continue;
10214 }
10215
10216 // Prefer smaller lengths unless best is inside and current isn't
10217 if length > best_length && (best_inside || !inside) {
10218 continue;
10219 }
10220
10221 best_length = length;
10222 best_inside = inside;
10223 best_in_bracket_range = in_bracket_range;
10224 best_destination = Some(
10225 if close.contains(&selection.start) && close.contains(&selection.end) {
10226 if inside {
10227 open.end
10228 } else {
10229 open.start
10230 }
10231 } else if inside {
10232 *close.start()
10233 } else {
10234 *close.end()
10235 },
10236 );
10237 }
10238
10239 if let Some(destination) = best_destination {
10240 selection.collapse_to(destination, SelectionGoal::None);
10241 }
10242 })
10243 });
10244 }
10245
10246 pub fn undo_selection(
10247 &mut self,
10248 _: &UndoSelection,
10249 window: &mut Window,
10250 cx: &mut Context<Self>,
10251 ) {
10252 self.end_selection(window, cx);
10253 self.selection_history.mode = SelectionHistoryMode::Undoing;
10254 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
10255 self.change_selections(None, window, cx, |s| {
10256 s.select_anchors(entry.selections.to_vec())
10257 });
10258 self.select_next_state = entry.select_next_state;
10259 self.select_prev_state = entry.select_prev_state;
10260 self.add_selections_state = entry.add_selections_state;
10261 self.request_autoscroll(Autoscroll::newest(), cx);
10262 }
10263 self.selection_history.mode = SelectionHistoryMode::Normal;
10264 }
10265
10266 pub fn redo_selection(
10267 &mut self,
10268 _: &RedoSelection,
10269 window: &mut Window,
10270 cx: &mut Context<Self>,
10271 ) {
10272 self.end_selection(window, cx);
10273 self.selection_history.mode = SelectionHistoryMode::Redoing;
10274 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
10275 self.change_selections(None, window, cx, |s| {
10276 s.select_anchors(entry.selections.to_vec())
10277 });
10278 self.select_next_state = entry.select_next_state;
10279 self.select_prev_state = entry.select_prev_state;
10280 self.add_selections_state = entry.add_selections_state;
10281 self.request_autoscroll(Autoscroll::newest(), cx);
10282 }
10283 self.selection_history.mode = SelectionHistoryMode::Normal;
10284 }
10285
10286 pub fn expand_excerpts(
10287 &mut self,
10288 action: &ExpandExcerpts,
10289 _: &mut Window,
10290 cx: &mut Context<Self>,
10291 ) {
10292 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
10293 }
10294
10295 pub fn expand_excerpts_down(
10296 &mut self,
10297 action: &ExpandExcerptsDown,
10298 _: &mut Window,
10299 cx: &mut Context<Self>,
10300 ) {
10301 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
10302 }
10303
10304 pub fn expand_excerpts_up(
10305 &mut self,
10306 action: &ExpandExcerptsUp,
10307 _: &mut Window,
10308 cx: &mut Context<Self>,
10309 ) {
10310 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
10311 }
10312
10313 pub fn expand_excerpts_for_direction(
10314 &mut self,
10315 lines: u32,
10316 direction: ExpandExcerptDirection,
10317
10318 cx: &mut Context<Self>,
10319 ) {
10320 let selections = self.selections.disjoint_anchors();
10321
10322 let lines = if lines == 0 {
10323 EditorSettings::get_global(cx).expand_excerpt_lines
10324 } else {
10325 lines
10326 };
10327
10328 self.buffer.update(cx, |buffer, cx| {
10329 let snapshot = buffer.snapshot(cx);
10330 let mut excerpt_ids = selections
10331 .iter()
10332 .flat_map(|selection| snapshot.excerpt_ids_for_range(selection.range()))
10333 .collect::<Vec<_>>();
10334 excerpt_ids.sort();
10335 excerpt_ids.dedup();
10336 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
10337 })
10338 }
10339
10340 pub fn expand_excerpt(
10341 &mut self,
10342 excerpt: ExcerptId,
10343 direction: ExpandExcerptDirection,
10344 cx: &mut Context<Self>,
10345 ) {
10346 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
10347 self.buffer.update(cx, |buffer, cx| {
10348 buffer.expand_excerpts([excerpt], lines, direction, cx)
10349 })
10350 }
10351
10352 pub fn go_to_singleton_buffer_point(
10353 &mut self,
10354 point: Point,
10355 window: &mut Window,
10356 cx: &mut Context<Self>,
10357 ) {
10358 self.go_to_singleton_buffer_range(point..point, window, cx);
10359 }
10360
10361 pub fn go_to_singleton_buffer_range(
10362 &mut self,
10363 range: Range<Point>,
10364 window: &mut Window,
10365 cx: &mut Context<Self>,
10366 ) {
10367 let multibuffer = self.buffer().read(cx);
10368 let Some(buffer) = multibuffer.as_singleton() else {
10369 return;
10370 };
10371 let Some(start) = multibuffer.buffer_point_to_anchor(&buffer, range.start, cx) else {
10372 return;
10373 };
10374 let Some(end) = multibuffer.buffer_point_to_anchor(&buffer, range.end, cx) else {
10375 return;
10376 };
10377 self.change_selections(Some(Autoscroll::center()), window, cx, |s| {
10378 s.select_anchor_ranges([start..end])
10379 });
10380 }
10381
10382 fn go_to_diagnostic(
10383 &mut self,
10384 _: &GoToDiagnostic,
10385 window: &mut Window,
10386 cx: &mut Context<Self>,
10387 ) {
10388 self.go_to_diagnostic_impl(Direction::Next, window, cx)
10389 }
10390
10391 fn go_to_prev_diagnostic(
10392 &mut self,
10393 _: &GoToPrevDiagnostic,
10394 window: &mut Window,
10395 cx: &mut Context<Self>,
10396 ) {
10397 self.go_to_diagnostic_impl(Direction::Prev, window, cx)
10398 }
10399
10400 pub fn go_to_diagnostic_impl(
10401 &mut self,
10402 direction: Direction,
10403 window: &mut Window,
10404 cx: &mut Context<Self>,
10405 ) {
10406 let buffer = self.buffer.read(cx).snapshot(cx);
10407 let selection = self.selections.newest::<usize>(cx);
10408
10409 // If there is an active Diagnostic Popover jump to its diagnostic instead.
10410 if direction == Direction::Next {
10411 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
10412 let Some(buffer_id) = popover.local_diagnostic.range.start.buffer_id else {
10413 return;
10414 };
10415 self.activate_diagnostics(
10416 buffer_id,
10417 popover.local_diagnostic.diagnostic.group_id,
10418 window,
10419 cx,
10420 );
10421 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
10422 let primary_range_start = active_diagnostics.primary_range.start;
10423 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10424 let mut new_selection = s.newest_anchor().clone();
10425 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
10426 s.select_anchors(vec![new_selection.clone()]);
10427 });
10428 self.refresh_inline_completion(false, true, window, cx);
10429 }
10430 return;
10431 }
10432 }
10433
10434 let active_group_id = self
10435 .active_diagnostics
10436 .as_ref()
10437 .map(|active_group| active_group.group_id);
10438 let active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
10439 active_diagnostics
10440 .primary_range
10441 .to_offset(&buffer)
10442 .to_inclusive()
10443 });
10444 let search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
10445 if active_primary_range.contains(&selection.head()) {
10446 *active_primary_range.start()
10447 } else {
10448 selection.head()
10449 }
10450 } else {
10451 selection.head()
10452 };
10453
10454 let snapshot = self.snapshot(window, cx);
10455 let primary_diagnostics_before = buffer
10456 .diagnostics_in_range::<usize>(0..search_start)
10457 .filter(|entry| entry.diagnostic.is_primary)
10458 .filter(|entry| entry.range.start != entry.range.end)
10459 .filter(|entry| entry.diagnostic.severity <= DiagnosticSeverity::WARNING)
10460 .filter(|entry| !snapshot.intersects_fold(entry.range.start))
10461 .collect::<Vec<_>>();
10462 let last_same_group_diagnostic_before = active_group_id.and_then(|active_group_id| {
10463 primary_diagnostics_before
10464 .iter()
10465 .position(|entry| entry.diagnostic.group_id == active_group_id)
10466 });
10467
10468 let primary_diagnostics_after = buffer
10469 .diagnostics_in_range::<usize>(search_start..buffer.len())
10470 .filter(|entry| entry.diagnostic.is_primary)
10471 .filter(|entry| entry.range.start != entry.range.end)
10472 .filter(|entry| entry.diagnostic.severity <= DiagnosticSeverity::WARNING)
10473 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start))
10474 .collect::<Vec<_>>();
10475 let last_same_group_diagnostic_after = active_group_id.and_then(|active_group_id| {
10476 primary_diagnostics_after
10477 .iter()
10478 .enumerate()
10479 .rev()
10480 .find_map(|(i, entry)| {
10481 if entry.diagnostic.group_id == active_group_id {
10482 Some(i)
10483 } else {
10484 None
10485 }
10486 })
10487 });
10488
10489 let next_primary_diagnostic = match direction {
10490 Direction::Prev => primary_diagnostics_before
10491 .iter()
10492 .take(last_same_group_diagnostic_before.unwrap_or(usize::MAX))
10493 .rev()
10494 .next(),
10495 Direction::Next => primary_diagnostics_after
10496 .iter()
10497 .skip(
10498 last_same_group_diagnostic_after
10499 .map(|index| index + 1)
10500 .unwrap_or(0),
10501 )
10502 .next(),
10503 };
10504
10505 // Cycle around to the start of the buffer, potentially moving back to the start of
10506 // the currently active diagnostic.
10507 let cycle_around = || match direction {
10508 Direction::Prev => primary_diagnostics_after
10509 .iter()
10510 .rev()
10511 .chain(primary_diagnostics_before.iter().rev())
10512 .next(),
10513 Direction::Next => primary_diagnostics_before
10514 .iter()
10515 .chain(primary_diagnostics_after.iter())
10516 .next(),
10517 };
10518
10519 if let Some((primary_range, group_id)) = next_primary_diagnostic
10520 .or_else(cycle_around)
10521 .map(|entry| (&entry.range, entry.diagnostic.group_id))
10522 {
10523 let Some(buffer_id) = buffer.anchor_after(primary_range.start).buffer_id else {
10524 return;
10525 };
10526 self.activate_diagnostics(buffer_id, group_id, window, cx);
10527 if self.active_diagnostics.is_some() {
10528 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10529 s.select(vec![Selection {
10530 id: selection.id,
10531 start: primary_range.start,
10532 end: primary_range.start,
10533 reversed: false,
10534 goal: SelectionGoal::None,
10535 }]);
10536 });
10537 self.refresh_inline_completion(false, true, window, cx);
10538 }
10539 }
10540 }
10541
10542 fn go_to_next_hunk(&mut self, _: &GoToHunk, window: &mut Window, cx: &mut Context<Self>) {
10543 let snapshot = self.snapshot(window, cx);
10544 let selection = self.selections.newest::<Point>(cx);
10545 self.go_to_hunk_after_position(&snapshot, selection.head(), window, cx);
10546 }
10547
10548 fn go_to_hunk_after_position(
10549 &mut self,
10550 snapshot: &EditorSnapshot,
10551 position: Point,
10552 window: &mut Window,
10553 cx: &mut Context<Editor>,
10554 ) -> Option<MultiBufferDiffHunk> {
10555 let mut hunk = snapshot
10556 .buffer_snapshot
10557 .diff_hunks_in_range(position..snapshot.buffer_snapshot.max_point())
10558 .find(|hunk| hunk.row_range.start.0 > position.row);
10559 if hunk.is_none() {
10560 hunk = snapshot
10561 .buffer_snapshot
10562 .diff_hunks_in_range(Point::zero()..position)
10563 .find(|hunk| hunk.row_range.end.0 < position.row)
10564 }
10565 if let Some(hunk) = &hunk {
10566 let destination = Point::new(hunk.row_range.start.0, 0);
10567 self.unfold_ranges(&[destination..destination], false, false, cx);
10568 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10569 s.select_ranges(vec![destination..destination]);
10570 });
10571 }
10572
10573 hunk
10574 }
10575
10576 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, window: &mut Window, cx: &mut Context<Self>) {
10577 let snapshot = self.snapshot(window, cx);
10578 let selection = self.selections.newest::<Point>(cx);
10579 self.go_to_hunk_before_position(&snapshot, selection.head(), window, cx);
10580 }
10581
10582 fn go_to_hunk_before_position(
10583 &mut self,
10584 snapshot: &EditorSnapshot,
10585 position: Point,
10586 window: &mut Window,
10587 cx: &mut Context<Editor>,
10588 ) -> Option<MultiBufferDiffHunk> {
10589 let mut hunk = snapshot.buffer_snapshot.diff_hunk_before(position);
10590 if hunk.is_none() {
10591 hunk = snapshot.buffer_snapshot.diff_hunk_before(Point::MAX);
10592 }
10593 if let Some(hunk) = &hunk {
10594 let destination = Point::new(hunk.row_range.start.0, 0);
10595 self.unfold_ranges(&[destination..destination], false, false, cx);
10596 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10597 s.select_ranges(vec![destination..destination]);
10598 });
10599 }
10600
10601 hunk
10602 }
10603
10604 pub fn go_to_definition(
10605 &mut self,
10606 _: &GoToDefinition,
10607 window: &mut Window,
10608 cx: &mut Context<Self>,
10609 ) -> Task<Result<Navigated>> {
10610 let definition =
10611 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, window, cx);
10612 cx.spawn_in(window, |editor, mut cx| async move {
10613 if definition.await? == Navigated::Yes {
10614 return Ok(Navigated::Yes);
10615 }
10616 match editor.update_in(&mut cx, |editor, window, cx| {
10617 editor.find_all_references(&FindAllReferences, window, cx)
10618 })? {
10619 Some(references) => references.await,
10620 None => Ok(Navigated::No),
10621 }
10622 })
10623 }
10624
10625 pub fn go_to_declaration(
10626 &mut self,
10627 _: &GoToDeclaration,
10628 window: &mut Window,
10629 cx: &mut Context<Self>,
10630 ) -> Task<Result<Navigated>> {
10631 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, window, cx)
10632 }
10633
10634 pub fn go_to_declaration_split(
10635 &mut self,
10636 _: &GoToDeclaration,
10637 window: &mut Window,
10638 cx: &mut Context<Self>,
10639 ) -> Task<Result<Navigated>> {
10640 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, window, cx)
10641 }
10642
10643 pub fn go_to_implementation(
10644 &mut self,
10645 _: &GoToImplementation,
10646 window: &mut Window,
10647 cx: &mut Context<Self>,
10648 ) -> Task<Result<Navigated>> {
10649 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, window, cx)
10650 }
10651
10652 pub fn go_to_implementation_split(
10653 &mut self,
10654 _: &GoToImplementationSplit,
10655 window: &mut Window,
10656 cx: &mut Context<Self>,
10657 ) -> Task<Result<Navigated>> {
10658 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, window, cx)
10659 }
10660
10661 pub fn go_to_type_definition(
10662 &mut self,
10663 _: &GoToTypeDefinition,
10664 window: &mut Window,
10665 cx: &mut Context<Self>,
10666 ) -> Task<Result<Navigated>> {
10667 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, window, cx)
10668 }
10669
10670 pub fn go_to_definition_split(
10671 &mut self,
10672 _: &GoToDefinitionSplit,
10673 window: &mut Window,
10674 cx: &mut Context<Self>,
10675 ) -> Task<Result<Navigated>> {
10676 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, window, cx)
10677 }
10678
10679 pub fn go_to_type_definition_split(
10680 &mut self,
10681 _: &GoToTypeDefinitionSplit,
10682 window: &mut Window,
10683 cx: &mut Context<Self>,
10684 ) -> Task<Result<Navigated>> {
10685 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, window, cx)
10686 }
10687
10688 fn go_to_definition_of_kind(
10689 &mut self,
10690 kind: GotoDefinitionKind,
10691 split: bool,
10692 window: &mut Window,
10693 cx: &mut Context<Self>,
10694 ) -> Task<Result<Navigated>> {
10695 let Some(provider) = self.semantics_provider.clone() else {
10696 return Task::ready(Ok(Navigated::No));
10697 };
10698 let head = self.selections.newest::<usize>(cx).head();
10699 let buffer = self.buffer.read(cx);
10700 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
10701 text_anchor
10702 } else {
10703 return Task::ready(Ok(Navigated::No));
10704 };
10705
10706 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
10707 return Task::ready(Ok(Navigated::No));
10708 };
10709
10710 cx.spawn_in(window, |editor, mut cx| async move {
10711 let definitions = definitions.await?;
10712 let navigated = editor
10713 .update_in(&mut cx, |editor, window, cx| {
10714 editor.navigate_to_hover_links(
10715 Some(kind),
10716 definitions
10717 .into_iter()
10718 .filter(|location| {
10719 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10720 })
10721 .map(HoverLink::Text)
10722 .collect::<Vec<_>>(),
10723 split,
10724 window,
10725 cx,
10726 )
10727 })?
10728 .await?;
10729 anyhow::Ok(navigated)
10730 })
10731 }
10732
10733 pub fn open_url(&mut self, _: &OpenUrl, window: &mut Window, cx: &mut Context<Self>) {
10734 let selection = self.selections.newest_anchor();
10735 let head = selection.head();
10736 let tail = selection.tail();
10737
10738 let Some((buffer, start_position)) =
10739 self.buffer.read(cx).text_anchor_for_position(head, cx)
10740 else {
10741 return;
10742 };
10743
10744 let end_position = if head != tail {
10745 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
10746 return;
10747 };
10748 Some(pos)
10749 } else {
10750 None
10751 };
10752
10753 let url_finder = cx.spawn_in(window, |editor, mut cx| async move {
10754 let url = if let Some(end_pos) = end_position {
10755 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
10756 } else {
10757 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
10758 };
10759
10760 if let Some(url) = url {
10761 editor.update(&mut cx, |_, cx| {
10762 cx.open_url(&url);
10763 })
10764 } else {
10765 Ok(())
10766 }
10767 });
10768
10769 url_finder.detach();
10770 }
10771
10772 pub fn open_selected_filename(
10773 &mut self,
10774 _: &OpenSelectedFilename,
10775 window: &mut Window,
10776 cx: &mut Context<Self>,
10777 ) {
10778 let Some(workspace) = self.workspace() else {
10779 return;
10780 };
10781
10782 let position = self.selections.newest_anchor().head();
10783
10784 let Some((buffer, buffer_position)) =
10785 self.buffer.read(cx).text_anchor_for_position(position, cx)
10786 else {
10787 return;
10788 };
10789
10790 let project = self.project.clone();
10791
10792 cx.spawn_in(window, |_, mut cx| async move {
10793 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10794
10795 if let Some((_, path)) = result {
10796 workspace
10797 .update_in(&mut cx, |workspace, window, cx| {
10798 workspace.open_resolved_path(path, window, cx)
10799 })?
10800 .await?;
10801 }
10802 anyhow::Ok(())
10803 })
10804 .detach();
10805 }
10806
10807 pub(crate) fn navigate_to_hover_links(
10808 &mut self,
10809 kind: Option<GotoDefinitionKind>,
10810 mut definitions: Vec<HoverLink>,
10811 split: bool,
10812 window: &mut Window,
10813 cx: &mut Context<Editor>,
10814 ) -> Task<Result<Navigated>> {
10815 // If there is one definition, just open it directly
10816 if definitions.len() == 1 {
10817 let definition = definitions.pop().unwrap();
10818
10819 enum TargetTaskResult {
10820 Location(Option<Location>),
10821 AlreadyNavigated,
10822 }
10823
10824 let target_task = match definition {
10825 HoverLink::Text(link) => {
10826 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10827 }
10828 HoverLink::InlayHint(lsp_location, server_id) => {
10829 let computation =
10830 self.compute_target_location(lsp_location, server_id, window, cx);
10831 cx.background_executor().spawn(async move {
10832 let location = computation.await?;
10833 Ok(TargetTaskResult::Location(location))
10834 })
10835 }
10836 HoverLink::Url(url) => {
10837 cx.open_url(&url);
10838 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10839 }
10840 HoverLink::File(path) => {
10841 if let Some(workspace) = self.workspace() {
10842 cx.spawn_in(window, |_, mut cx| async move {
10843 workspace
10844 .update_in(&mut cx, |workspace, window, cx| {
10845 workspace.open_resolved_path(path, window, cx)
10846 })?
10847 .await
10848 .map(|_| TargetTaskResult::AlreadyNavigated)
10849 })
10850 } else {
10851 Task::ready(Ok(TargetTaskResult::Location(None)))
10852 }
10853 }
10854 };
10855 cx.spawn_in(window, |editor, mut cx| async move {
10856 let target = match target_task.await.context("target resolution task")? {
10857 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10858 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10859 TargetTaskResult::Location(Some(target)) => target,
10860 };
10861
10862 editor.update_in(&mut cx, |editor, window, cx| {
10863 let Some(workspace) = editor.workspace() else {
10864 return Navigated::No;
10865 };
10866 let pane = workspace.read(cx).active_pane().clone();
10867
10868 let range = target.range.to_point(target.buffer.read(cx));
10869 let range = editor.range_for_match(&range);
10870 let range = collapse_multiline_range(range);
10871
10872 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10873 editor.go_to_singleton_buffer_range(range.clone(), window, cx);
10874 } else {
10875 window.defer(cx, move |window, cx| {
10876 let target_editor: Entity<Self> =
10877 workspace.update(cx, |workspace, cx| {
10878 let pane = if split {
10879 workspace.adjacent_pane(window, cx)
10880 } else {
10881 workspace.active_pane().clone()
10882 };
10883
10884 workspace.open_project_item(
10885 pane,
10886 target.buffer.clone(),
10887 true,
10888 true,
10889 window,
10890 cx,
10891 )
10892 });
10893 target_editor.update(cx, |target_editor, cx| {
10894 // When selecting a definition in a different buffer, disable the nav history
10895 // to avoid creating a history entry at the previous cursor location.
10896 pane.update(cx, |pane, _| pane.disable_history());
10897 target_editor.go_to_singleton_buffer_range(range, window, cx);
10898 pane.update(cx, |pane, _| pane.enable_history());
10899 });
10900 });
10901 }
10902 Navigated::Yes
10903 })
10904 })
10905 } else if !definitions.is_empty() {
10906 cx.spawn_in(window, |editor, mut cx| async move {
10907 let (title, location_tasks, workspace) = editor
10908 .update_in(&mut cx, |editor, window, cx| {
10909 let tab_kind = match kind {
10910 Some(GotoDefinitionKind::Implementation) => "Implementations",
10911 _ => "Definitions",
10912 };
10913 let title = definitions
10914 .iter()
10915 .find_map(|definition| match definition {
10916 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10917 let buffer = origin.buffer.read(cx);
10918 format!(
10919 "{} for {}",
10920 tab_kind,
10921 buffer
10922 .text_for_range(origin.range.clone())
10923 .collect::<String>()
10924 )
10925 }),
10926 HoverLink::InlayHint(_, _) => None,
10927 HoverLink::Url(_) => None,
10928 HoverLink::File(_) => None,
10929 })
10930 .unwrap_or(tab_kind.to_string());
10931 let location_tasks = definitions
10932 .into_iter()
10933 .map(|definition| match definition {
10934 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
10935 HoverLink::InlayHint(lsp_location, server_id) => editor
10936 .compute_target_location(lsp_location, server_id, window, cx),
10937 HoverLink::Url(_) => Task::ready(Ok(None)),
10938 HoverLink::File(_) => Task::ready(Ok(None)),
10939 })
10940 .collect::<Vec<_>>();
10941 (title, location_tasks, editor.workspace().clone())
10942 })
10943 .context("location tasks preparation")?;
10944
10945 let locations = future::join_all(location_tasks)
10946 .await
10947 .into_iter()
10948 .filter_map(|location| location.transpose())
10949 .collect::<Result<_>>()
10950 .context("location tasks")?;
10951
10952 let Some(workspace) = workspace else {
10953 return Ok(Navigated::No);
10954 };
10955 let opened = workspace
10956 .update_in(&mut cx, |workspace, window, cx| {
10957 Self::open_locations_in_multibuffer(
10958 workspace,
10959 locations,
10960 title,
10961 split,
10962 MultibufferSelectionMode::First,
10963 window,
10964 cx,
10965 )
10966 })
10967 .ok();
10968
10969 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10970 })
10971 } else {
10972 Task::ready(Ok(Navigated::No))
10973 }
10974 }
10975
10976 fn compute_target_location(
10977 &self,
10978 lsp_location: lsp::Location,
10979 server_id: LanguageServerId,
10980 window: &mut Window,
10981 cx: &mut Context<Self>,
10982 ) -> Task<anyhow::Result<Option<Location>>> {
10983 let Some(project) = self.project.clone() else {
10984 return Task::ready(Ok(None));
10985 };
10986
10987 cx.spawn_in(window, move |editor, mut cx| async move {
10988 let location_task = editor.update(&mut cx, |_, cx| {
10989 project.update(cx, |project, cx| {
10990 let language_server_name = project
10991 .language_server_statuses(cx)
10992 .find(|(id, _)| server_id == *id)
10993 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10994 language_server_name.map(|language_server_name| {
10995 project.open_local_buffer_via_lsp(
10996 lsp_location.uri.clone(),
10997 server_id,
10998 language_server_name,
10999 cx,
11000 )
11001 })
11002 })
11003 })?;
11004 let location = match location_task {
11005 Some(task) => Some({
11006 let target_buffer_handle = task.await.context("open local buffer")?;
11007 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
11008 let target_start = target_buffer
11009 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
11010 let target_end = target_buffer
11011 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
11012 target_buffer.anchor_after(target_start)
11013 ..target_buffer.anchor_before(target_end)
11014 })?;
11015 Location {
11016 buffer: target_buffer_handle,
11017 range,
11018 }
11019 }),
11020 None => None,
11021 };
11022 Ok(location)
11023 })
11024 }
11025
11026 pub fn find_all_references(
11027 &mut self,
11028 _: &FindAllReferences,
11029 window: &mut Window,
11030 cx: &mut Context<Self>,
11031 ) -> Option<Task<Result<Navigated>>> {
11032 let selection = self.selections.newest::<usize>(cx);
11033 let multi_buffer = self.buffer.read(cx);
11034 let head = selection.head();
11035
11036 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11037 let head_anchor = multi_buffer_snapshot.anchor_at(
11038 head,
11039 if head < selection.tail() {
11040 Bias::Right
11041 } else {
11042 Bias::Left
11043 },
11044 );
11045
11046 match self
11047 .find_all_references_task_sources
11048 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
11049 {
11050 Ok(_) => {
11051 log::info!(
11052 "Ignoring repeated FindAllReferences invocation with the position of already running task"
11053 );
11054 return None;
11055 }
11056 Err(i) => {
11057 self.find_all_references_task_sources.insert(i, head_anchor);
11058 }
11059 }
11060
11061 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
11062 let workspace = self.workspace()?;
11063 let project = workspace.read(cx).project().clone();
11064 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
11065 Some(cx.spawn_in(window, |editor, mut cx| async move {
11066 let _cleanup = defer({
11067 let mut cx = cx.clone();
11068 move || {
11069 let _ = editor.update(&mut cx, |editor, _| {
11070 if let Ok(i) =
11071 editor
11072 .find_all_references_task_sources
11073 .binary_search_by(|anchor| {
11074 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
11075 })
11076 {
11077 editor.find_all_references_task_sources.remove(i);
11078 }
11079 });
11080 }
11081 });
11082
11083 let locations = references.await?;
11084 if locations.is_empty() {
11085 return anyhow::Ok(Navigated::No);
11086 }
11087
11088 workspace.update_in(&mut cx, |workspace, window, cx| {
11089 let title = locations
11090 .first()
11091 .as_ref()
11092 .map(|location| {
11093 let buffer = location.buffer.read(cx);
11094 format!(
11095 "References to `{}`",
11096 buffer
11097 .text_for_range(location.range.clone())
11098 .collect::<String>()
11099 )
11100 })
11101 .unwrap();
11102 Self::open_locations_in_multibuffer(
11103 workspace,
11104 locations,
11105 title,
11106 false,
11107 MultibufferSelectionMode::First,
11108 window,
11109 cx,
11110 );
11111 Navigated::Yes
11112 })
11113 }))
11114 }
11115
11116 /// Opens a multibuffer with the given project locations in it
11117 pub fn open_locations_in_multibuffer(
11118 workspace: &mut Workspace,
11119 mut locations: Vec<Location>,
11120 title: String,
11121 split: bool,
11122 multibuffer_selection_mode: MultibufferSelectionMode,
11123 window: &mut Window,
11124 cx: &mut Context<Workspace>,
11125 ) {
11126 // If there are multiple definitions, open them in a multibuffer
11127 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
11128 let mut locations = locations.into_iter().peekable();
11129 let mut ranges = Vec::new();
11130 let capability = workspace.project().read(cx).capability();
11131
11132 let excerpt_buffer = cx.new(|cx| {
11133 let mut multibuffer = MultiBuffer::new(capability);
11134 while let Some(location) = locations.next() {
11135 let buffer = location.buffer.read(cx);
11136 let mut ranges_for_buffer = Vec::new();
11137 let range = location.range.to_offset(buffer);
11138 ranges_for_buffer.push(range.clone());
11139
11140 while let Some(next_location) = locations.peek() {
11141 if next_location.buffer == location.buffer {
11142 ranges_for_buffer.push(next_location.range.to_offset(buffer));
11143 locations.next();
11144 } else {
11145 break;
11146 }
11147 }
11148
11149 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
11150 ranges.extend(multibuffer.push_excerpts_with_context_lines(
11151 location.buffer.clone(),
11152 ranges_for_buffer,
11153 DEFAULT_MULTIBUFFER_CONTEXT,
11154 cx,
11155 ))
11156 }
11157
11158 multibuffer.with_title(title)
11159 });
11160
11161 let editor = cx.new(|cx| {
11162 Editor::for_multibuffer(
11163 excerpt_buffer,
11164 Some(workspace.project().clone()),
11165 true,
11166 window,
11167 cx,
11168 )
11169 });
11170 editor.update(cx, |editor, cx| {
11171 match multibuffer_selection_mode {
11172 MultibufferSelectionMode::First => {
11173 if let Some(first_range) = ranges.first() {
11174 editor.change_selections(None, window, cx, |selections| {
11175 selections.clear_disjoint();
11176 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
11177 });
11178 }
11179 editor.highlight_background::<Self>(
11180 &ranges,
11181 |theme| theme.editor_highlighted_line_background,
11182 cx,
11183 );
11184 }
11185 MultibufferSelectionMode::All => {
11186 editor.change_selections(None, window, cx, |selections| {
11187 selections.clear_disjoint();
11188 selections.select_anchor_ranges(ranges);
11189 });
11190 }
11191 }
11192 editor.register_buffers_with_language_servers(cx);
11193 });
11194
11195 let item = Box::new(editor);
11196 let item_id = item.item_id();
11197
11198 if split {
11199 workspace.split_item(SplitDirection::Right, item.clone(), window, cx);
11200 } else {
11201 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
11202 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
11203 pane.close_current_preview_item(window, cx)
11204 } else {
11205 None
11206 }
11207 });
11208 workspace.add_item_to_active_pane(item.clone(), destination_index, true, window, cx);
11209 }
11210 workspace.active_pane().update(cx, |pane, cx| {
11211 pane.set_preview_item_id(Some(item_id), cx);
11212 });
11213 }
11214
11215 pub fn rename(
11216 &mut self,
11217 _: &Rename,
11218 window: &mut Window,
11219 cx: &mut Context<Self>,
11220 ) -> Option<Task<Result<()>>> {
11221 use language::ToOffset as _;
11222
11223 let provider = self.semantics_provider.clone()?;
11224 let selection = self.selections.newest_anchor().clone();
11225 let (cursor_buffer, cursor_buffer_position) = self
11226 .buffer
11227 .read(cx)
11228 .text_anchor_for_position(selection.head(), cx)?;
11229 let (tail_buffer, cursor_buffer_position_end) = self
11230 .buffer
11231 .read(cx)
11232 .text_anchor_for_position(selection.tail(), cx)?;
11233 if tail_buffer != cursor_buffer {
11234 return None;
11235 }
11236
11237 let snapshot = cursor_buffer.read(cx).snapshot();
11238 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
11239 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
11240 let prepare_rename = provider
11241 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
11242 .unwrap_or_else(|| Task::ready(Ok(None)));
11243 drop(snapshot);
11244
11245 Some(cx.spawn_in(window, |this, mut cx| async move {
11246 let rename_range = if let Some(range) = prepare_rename.await? {
11247 Some(range)
11248 } else {
11249 this.update(&mut cx, |this, cx| {
11250 let buffer = this.buffer.read(cx).snapshot(cx);
11251 let mut buffer_highlights = this
11252 .document_highlights_for_position(selection.head(), &buffer)
11253 .filter(|highlight| {
11254 highlight.start.excerpt_id == selection.head().excerpt_id
11255 && highlight.end.excerpt_id == selection.head().excerpt_id
11256 });
11257 buffer_highlights
11258 .next()
11259 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
11260 })?
11261 };
11262 if let Some(rename_range) = rename_range {
11263 this.update_in(&mut cx, |this, window, cx| {
11264 let snapshot = cursor_buffer.read(cx).snapshot();
11265 let rename_buffer_range = rename_range.to_offset(&snapshot);
11266 let cursor_offset_in_rename_range =
11267 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
11268 let cursor_offset_in_rename_range_end =
11269 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
11270
11271 this.take_rename(false, window, cx);
11272 let buffer = this.buffer.read(cx).read(cx);
11273 let cursor_offset = selection.head().to_offset(&buffer);
11274 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
11275 let rename_end = rename_start + rename_buffer_range.len();
11276 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
11277 let mut old_highlight_id = None;
11278 let old_name: Arc<str> = buffer
11279 .chunks(rename_start..rename_end, true)
11280 .map(|chunk| {
11281 if old_highlight_id.is_none() {
11282 old_highlight_id = chunk.syntax_highlight_id;
11283 }
11284 chunk.text
11285 })
11286 .collect::<String>()
11287 .into();
11288
11289 drop(buffer);
11290
11291 // Position the selection in the rename editor so that it matches the current selection.
11292 this.show_local_selections = false;
11293 let rename_editor = cx.new(|cx| {
11294 let mut editor = Editor::single_line(window, cx);
11295 editor.buffer.update(cx, |buffer, cx| {
11296 buffer.edit([(0..0, old_name.clone())], None, cx)
11297 });
11298 let rename_selection_range = match cursor_offset_in_rename_range
11299 .cmp(&cursor_offset_in_rename_range_end)
11300 {
11301 Ordering::Equal => {
11302 editor.select_all(&SelectAll, window, cx);
11303 return editor;
11304 }
11305 Ordering::Less => {
11306 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
11307 }
11308 Ordering::Greater => {
11309 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
11310 }
11311 };
11312 if rename_selection_range.end > old_name.len() {
11313 editor.select_all(&SelectAll, window, cx);
11314 } else {
11315 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
11316 s.select_ranges([rename_selection_range]);
11317 });
11318 }
11319 editor
11320 });
11321 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
11322 if e == &EditorEvent::Focused {
11323 cx.emit(EditorEvent::FocusedIn)
11324 }
11325 })
11326 .detach();
11327
11328 let write_highlights =
11329 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
11330 let read_highlights =
11331 this.clear_background_highlights::<DocumentHighlightRead>(cx);
11332 let ranges = write_highlights
11333 .iter()
11334 .flat_map(|(_, ranges)| ranges.iter())
11335 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
11336 .cloned()
11337 .collect();
11338
11339 this.highlight_text::<Rename>(
11340 ranges,
11341 HighlightStyle {
11342 fade_out: Some(0.6),
11343 ..Default::default()
11344 },
11345 cx,
11346 );
11347 let rename_focus_handle = rename_editor.focus_handle(cx);
11348 window.focus(&rename_focus_handle);
11349 let block_id = this.insert_blocks(
11350 [BlockProperties {
11351 style: BlockStyle::Flex,
11352 placement: BlockPlacement::Below(range.start),
11353 height: 1,
11354 render: Arc::new({
11355 let rename_editor = rename_editor.clone();
11356 move |cx: &mut BlockContext| {
11357 let mut text_style = cx.editor_style.text.clone();
11358 if let Some(highlight_style) = old_highlight_id
11359 .and_then(|h| h.style(&cx.editor_style.syntax))
11360 {
11361 text_style = text_style.highlight(highlight_style);
11362 }
11363 div()
11364 .block_mouse_down()
11365 .pl(cx.anchor_x)
11366 .child(EditorElement::new(
11367 &rename_editor,
11368 EditorStyle {
11369 background: cx.theme().system().transparent,
11370 local_player: cx.editor_style.local_player,
11371 text: text_style,
11372 scrollbar_width: cx.editor_style.scrollbar_width,
11373 syntax: cx.editor_style.syntax.clone(),
11374 status: cx.editor_style.status.clone(),
11375 inlay_hints_style: HighlightStyle {
11376 font_weight: Some(FontWeight::BOLD),
11377 ..make_inlay_hints_style(cx.app)
11378 },
11379 inline_completion_styles: make_suggestion_styles(
11380 cx.app,
11381 ),
11382 ..EditorStyle::default()
11383 },
11384 ))
11385 .into_any_element()
11386 }
11387 }),
11388 priority: 0,
11389 }],
11390 Some(Autoscroll::fit()),
11391 cx,
11392 )[0];
11393 this.pending_rename = Some(RenameState {
11394 range,
11395 old_name,
11396 editor: rename_editor,
11397 block_id,
11398 });
11399 })?;
11400 }
11401
11402 Ok(())
11403 }))
11404 }
11405
11406 pub fn confirm_rename(
11407 &mut self,
11408 _: &ConfirmRename,
11409 window: &mut Window,
11410 cx: &mut Context<Self>,
11411 ) -> Option<Task<Result<()>>> {
11412 let rename = self.take_rename(false, window, cx)?;
11413 let workspace = self.workspace()?.downgrade();
11414 let (buffer, start) = self
11415 .buffer
11416 .read(cx)
11417 .text_anchor_for_position(rename.range.start, cx)?;
11418 let (end_buffer, _) = self
11419 .buffer
11420 .read(cx)
11421 .text_anchor_for_position(rename.range.end, cx)?;
11422 if buffer != end_buffer {
11423 return None;
11424 }
11425
11426 let old_name = rename.old_name;
11427 let new_name = rename.editor.read(cx).text(cx);
11428
11429 let rename = self.semantics_provider.as_ref()?.perform_rename(
11430 &buffer,
11431 start,
11432 new_name.clone(),
11433 cx,
11434 )?;
11435
11436 Some(cx.spawn_in(window, |editor, mut cx| async move {
11437 let project_transaction = rename.await?;
11438 Self::open_project_transaction(
11439 &editor,
11440 workspace,
11441 project_transaction,
11442 format!("Rename: {} → {}", old_name, new_name),
11443 cx.clone(),
11444 )
11445 .await?;
11446
11447 editor.update(&mut cx, |editor, cx| {
11448 editor.refresh_document_highlights(cx);
11449 })?;
11450 Ok(())
11451 }))
11452 }
11453
11454 fn take_rename(
11455 &mut self,
11456 moving_cursor: bool,
11457 window: &mut Window,
11458 cx: &mut Context<Self>,
11459 ) -> Option<RenameState> {
11460 let rename = self.pending_rename.take()?;
11461 if rename.editor.focus_handle(cx).is_focused(window) {
11462 window.focus(&self.focus_handle);
11463 }
11464
11465 self.remove_blocks(
11466 [rename.block_id].into_iter().collect(),
11467 Some(Autoscroll::fit()),
11468 cx,
11469 );
11470 self.clear_highlights::<Rename>(cx);
11471 self.show_local_selections = true;
11472
11473 if moving_cursor {
11474 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
11475 editor.selections.newest::<usize>(cx).head()
11476 });
11477
11478 // Update the selection to match the position of the selection inside
11479 // the rename editor.
11480 let snapshot = self.buffer.read(cx).read(cx);
11481 let rename_range = rename.range.to_offset(&snapshot);
11482 let cursor_in_editor = snapshot
11483 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
11484 .min(rename_range.end);
11485 drop(snapshot);
11486
11487 self.change_selections(None, window, cx, |s| {
11488 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
11489 });
11490 } else {
11491 self.refresh_document_highlights(cx);
11492 }
11493
11494 Some(rename)
11495 }
11496
11497 pub fn pending_rename(&self) -> Option<&RenameState> {
11498 self.pending_rename.as_ref()
11499 }
11500
11501 fn format(
11502 &mut self,
11503 _: &Format,
11504 window: &mut Window,
11505 cx: &mut Context<Self>,
11506 ) -> Option<Task<Result<()>>> {
11507 let project = match &self.project {
11508 Some(project) => project.clone(),
11509 None => return None,
11510 };
11511
11512 Some(self.perform_format(
11513 project,
11514 FormatTrigger::Manual,
11515 FormatTarget::Buffers,
11516 window,
11517 cx,
11518 ))
11519 }
11520
11521 fn format_selections(
11522 &mut self,
11523 _: &FormatSelections,
11524 window: &mut Window,
11525 cx: &mut Context<Self>,
11526 ) -> Option<Task<Result<()>>> {
11527 let project = match &self.project {
11528 Some(project) => project.clone(),
11529 None => return None,
11530 };
11531
11532 let ranges = self
11533 .selections
11534 .all_adjusted(cx)
11535 .into_iter()
11536 .map(|selection| selection.range())
11537 .collect_vec();
11538
11539 Some(self.perform_format(
11540 project,
11541 FormatTrigger::Manual,
11542 FormatTarget::Ranges(ranges),
11543 window,
11544 cx,
11545 ))
11546 }
11547
11548 fn perform_format(
11549 &mut self,
11550 project: Entity<Project>,
11551 trigger: FormatTrigger,
11552 target: FormatTarget,
11553 window: &mut Window,
11554 cx: &mut Context<Self>,
11555 ) -> Task<Result<()>> {
11556 let buffer = self.buffer.clone();
11557 let (buffers, target) = match target {
11558 FormatTarget::Buffers => {
11559 let mut buffers = buffer.read(cx).all_buffers();
11560 if trigger == FormatTrigger::Save {
11561 buffers.retain(|buffer| buffer.read(cx).is_dirty());
11562 }
11563 (buffers, LspFormatTarget::Buffers)
11564 }
11565 FormatTarget::Ranges(selection_ranges) => {
11566 let multi_buffer = buffer.read(cx);
11567 let snapshot = multi_buffer.read(cx);
11568 let mut buffers = HashSet::default();
11569 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
11570 BTreeMap::new();
11571 for selection_range in selection_ranges {
11572 for (buffer, buffer_range, _) in
11573 snapshot.range_to_buffer_ranges(selection_range)
11574 {
11575 let buffer_id = buffer.remote_id();
11576 let start = buffer.anchor_before(buffer_range.start);
11577 let end = buffer.anchor_after(buffer_range.end);
11578 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
11579 buffer_id_to_ranges
11580 .entry(buffer_id)
11581 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
11582 .or_insert_with(|| vec![start..end]);
11583 }
11584 }
11585 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
11586 }
11587 };
11588
11589 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
11590 let format = project.update(cx, |project, cx| {
11591 project.format(buffers, target, true, trigger, cx)
11592 });
11593
11594 cx.spawn_in(window, |_, mut cx| async move {
11595 let transaction = futures::select_biased! {
11596 () = timeout => {
11597 log::warn!("timed out waiting for formatting");
11598 None
11599 }
11600 transaction = format.log_err().fuse() => transaction,
11601 };
11602
11603 buffer
11604 .update(&mut cx, |buffer, cx| {
11605 if let Some(transaction) = transaction {
11606 if !buffer.is_singleton() {
11607 buffer.push_transaction(&transaction.0, cx);
11608 }
11609 }
11610
11611 cx.notify();
11612 })
11613 .ok();
11614
11615 Ok(())
11616 })
11617 }
11618
11619 fn restart_language_server(
11620 &mut self,
11621 _: &RestartLanguageServer,
11622 _: &mut Window,
11623 cx: &mut Context<Self>,
11624 ) {
11625 if let Some(project) = self.project.clone() {
11626 self.buffer.update(cx, |multi_buffer, cx| {
11627 project.update(cx, |project, cx| {
11628 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
11629 });
11630 })
11631 }
11632 }
11633
11634 fn cancel_language_server_work(
11635 workspace: &mut Workspace,
11636 _: &actions::CancelLanguageServerWork,
11637 _: &mut Window,
11638 cx: &mut Context<Workspace>,
11639 ) {
11640 let project = workspace.project();
11641 let buffers = workspace
11642 .active_item(cx)
11643 .and_then(|item| item.act_as::<Editor>(cx))
11644 .map_or(HashSet::default(), |editor| {
11645 editor.read(cx).buffer.read(cx).all_buffers()
11646 });
11647 project.update(cx, |project, cx| {
11648 project.cancel_language_server_work_for_buffers(buffers, cx);
11649 });
11650 }
11651
11652 fn show_character_palette(
11653 &mut self,
11654 _: &ShowCharacterPalette,
11655 window: &mut Window,
11656 _: &mut Context<Self>,
11657 ) {
11658 window.show_character_palette();
11659 }
11660
11661 fn refresh_active_diagnostics(&mut self, cx: &mut Context<Editor>) {
11662 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
11663 let buffer = self.buffer.read(cx).snapshot(cx);
11664 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
11665 let primary_range_end = active_diagnostics.primary_range.end.to_offset(&buffer);
11666 let is_valid = buffer
11667 .diagnostics_in_range::<usize>(primary_range_start..primary_range_end)
11668 .any(|entry| {
11669 entry.diagnostic.is_primary
11670 && !entry.range.is_empty()
11671 && entry.range.start == primary_range_start
11672 && entry.diagnostic.message == active_diagnostics.primary_message
11673 });
11674
11675 if is_valid != active_diagnostics.is_valid {
11676 active_diagnostics.is_valid = is_valid;
11677 let mut new_styles = HashMap::default();
11678 for (block_id, diagnostic) in &active_diagnostics.blocks {
11679 new_styles.insert(
11680 *block_id,
11681 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
11682 );
11683 }
11684 self.display_map.update(cx, |display_map, _cx| {
11685 display_map.replace_blocks(new_styles)
11686 });
11687 }
11688 }
11689 }
11690
11691 fn activate_diagnostics(
11692 &mut self,
11693 buffer_id: BufferId,
11694 group_id: usize,
11695 window: &mut Window,
11696 cx: &mut Context<Self>,
11697 ) {
11698 self.dismiss_diagnostics(cx);
11699 let snapshot = self.snapshot(window, cx);
11700 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
11701 let buffer = self.buffer.read(cx).snapshot(cx);
11702
11703 let mut primary_range = None;
11704 let mut primary_message = None;
11705 let diagnostic_group = buffer
11706 .diagnostic_group(buffer_id, group_id)
11707 .filter_map(|entry| {
11708 let start = entry.range.start;
11709 let end = entry.range.end;
11710 if snapshot.is_line_folded(MultiBufferRow(start.row))
11711 && (start.row == end.row
11712 || snapshot.is_line_folded(MultiBufferRow(end.row)))
11713 {
11714 return None;
11715 }
11716 if entry.diagnostic.is_primary {
11717 primary_range = Some(entry.range.clone());
11718 primary_message = Some(entry.diagnostic.message.clone());
11719 }
11720 Some(entry)
11721 })
11722 .collect::<Vec<_>>();
11723 let primary_range = primary_range?;
11724 let primary_message = primary_message?;
11725
11726 let blocks = display_map
11727 .insert_blocks(
11728 diagnostic_group.iter().map(|entry| {
11729 let diagnostic = entry.diagnostic.clone();
11730 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
11731 BlockProperties {
11732 style: BlockStyle::Fixed,
11733 placement: BlockPlacement::Below(
11734 buffer.anchor_after(entry.range.start),
11735 ),
11736 height: message_height,
11737 render: diagnostic_block_renderer(diagnostic, None, true, true),
11738 priority: 0,
11739 }
11740 }),
11741 cx,
11742 )
11743 .into_iter()
11744 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
11745 .collect();
11746
11747 Some(ActiveDiagnosticGroup {
11748 primary_range: buffer.anchor_before(primary_range.start)
11749 ..buffer.anchor_after(primary_range.end),
11750 primary_message,
11751 group_id,
11752 blocks,
11753 is_valid: true,
11754 })
11755 });
11756 }
11757
11758 fn dismiss_diagnostics(&mut self, cx: &mut Context<Self>) {
11759 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
11760 self.display_map.update(cx, |display_map, cx| {
11761 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
11762 });
11763 cx.notify();
11764 }
11765 }
11766
11767 pub fn set_selections_from_remote(
11768 &mut self,
11769 selections: Vec<Selection<Anchor>>,
11770 pending_selection: Option<Selection<Anchor>>,
11771 window: &mut Window,
11772 cx: &mut Context<Self>,
11773 ) {
11774 let old_cursor_position = self.selections.newest_anchor().head();
11775 self.selections.change_with(cx, |s| {
11776 s.select_anchors(selections);
11777 if let Some(pending_selection) = pending_selection {
11778 s.set_pending(pending_selection, SelectMode::Character);
11779 } else {
11780 s.clear_pending();
11781 }
11782 });
11783 self.selections_did_change(false, &old_cursor_position, true, window, cx);
11784 }
11785
11786 fn push_to_selection_history(&mut self) {
11787 self.selection_history.push(SelectionHistoryEntry {
11788 selections: self.selections.disjoint_anchors(),
11789 select_next_state: self.select_next_state.clone(),
11790 select_prev_state: self.select_prev_state.clone(),
11791 add_selections_state: self.add_selections_state.clone(),
11792 });
11793 }
11794
11795 pub fn transact(
11796 &mut self,
11797 window: &mut Window,
11798 cx: &mut Context<Self>,
11799 update: impl FnOnce(&mut Self, &mut Window, &mut Context<Self>),
11800 ) -> Option<TransactionId> {
11801 self.start_transaction_at(Instant::now(), window, cx);
11802 update(self, window, cx);
11803 self.end_transaction_at(Instant::now(), cx)
11804 }
11805
11806 pub fn start_transaction_at(
11807 &mut self,
11808 now: Instant,
11809 window: &mut Window,
11810 cx: &mut Context<Self>,
11811 ) {
11812 self.end_selection(window, cx);
11813 if let Some(tx_id) = self
11814 .buffer
11815 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
11816 {
11817 self.selection_history
11818 .insert_transaction(tx_id, self.selections.disjoint_anchors());
11819 cx.emit(EditorEvent::TransactionBegun {
11820 transaction_id: tx_id,
11821 })
11822 }
11823 }
11824
11825 pub fn end_transaction_at(
11826 &mut self,
11827 now: Instant,
11828 cx: &mut Context<Self>,
11829 ) -> Option<TransactionId> {
11830 if let Some(transaction_id) = self
11831 .buffer
11832 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
11833 {
11834 if let Some((_, end_selections)) =
11835 self.selection_history.transaction_mut(transaction_id)
11836 {
11837 *end_selections = Some(self.selections.disjoint_anchors());
11838 } else {
11839 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11840 }
11841
11842 cx.emit(EditorEvent::Edited { transaction_id });
11843 Some(transaction_id)
11844 } else {
11845 None
11846 }
11847 }
11848
11849 pub fn set_mark(&mut self, _: &actions::SetMark, window: &mut Window, cx: &mut Context<Self>) {
11850 if self.selection_mark_mode {
11851 self.change_selections(None, window, cx, |s| {
11852 s.move_with(|_, sel| {
11853 sel.collapse_to(sel.head(), SelectionGoal::None);
11854 });
11855 })
11856 }
11857 self.selection_mark_mode = true;
11858 cx.notify();
11859 }
11860
11861 pub fn swap_selection_ends(
11862 &mut self,
11863 _: &actions::SwapSelectionEnds,
11864 window: &mut Window,
11865 cx: &mut Context<Self>,
11866 ) {
11867 self.change_selections(None, window, cx, |s| {
11868 s.move_with(|_, sel| {
11869 if sel.start != sel.end {
11870 sel.reversed = !sel.reversed
11871 }
11872 });
11873 });
11874 self.request_autoscroll(Autoscroll::newest(), cx);
11875 cx.notify();
11876 }
11877
11878 pub fn toggle_fold(
11879 &mut self,
11880 _: &actions::ToggleFold,
11881 window: &mut Window,
11882 cx: &mut Context<Self>,
11883 ) {
11884 if self.is_singleton(cx) {
11885 let selection = self.selections.newest::<Point>(cx);
11886
11887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11888 let range = if selection.is_empty() {
11889 let point = selection.head().to_display_point(&display_map);
11890 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11891 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11892 .to_point(&display_map);
11893 start..end
11894 } else {
11895 selection.range()
11896 };
11897 if display_map.folds_in_range(range).next().is_some() {
11898 self.unfold_lines(&Default::default(), window, cx)
11899 } else {
11900 self.fold(&Default::default(), window, cx)
11901 }
11902 } else {
11903 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
11904 let buffer_ids: HashSet<_> = multi_buffer_snapshot
11905 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
11906 .map(|(snapshot, _, _)| snapshot.remote_id())
11907 .collect();
11908
11909 for buffer_id in buffer_ids {
11910 if self.is_buffer_folded(buffer_id, cx) {
11911 self.unfold_buffer(buffer_id, cx);
11912 } else {
11913 self.fold_buffer(buffer_id, cx);
11914 }
11915 }
11916 }
11917 }
11918
11919 pub fn toggle_fold_recursive(
11920 &mut self,
11921 _: &actions::ToggleFoldRecursive,
11922 window: &mut Window,
11923 cx: &mut Context<Self>,
11924 ) {
11925 let selection = self.selections.newest::<Point>(cx);
11926
11927 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11928 let range = if selection.is_empty() {
11929 let point = selection.head().to_display_point(&display_map);
11930 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11931 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11932 .to_point(&display_map);
11933 start..end
11934 } else {
11935 selection.range()
11936 };
11937 if display_map.folds_in_range(range).next().is_some() {
11938 self.unfold_recursive(&Default::default(), window, cx)
11939 } else {
11940 self.fold_recursive(&Default::default(), window, cx)
11941 }
11942 }
11943
11944 pub fn fold(&mut self, _: &actions::Fold, window: &mut Window, cx: &mut Context<Self>) {
11945 if self.is_singleton(cx) {
11946 let mut to_fold = Vec::new();
11947 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11948 let selections = self.selections.all_adjusted(cx);
11949
11950 for selection in selections {
11951 let range = selection.range().sorted();
11952 let buffer_start_row = range.start.row;
11953
11954 if range.start.row != range.end.row {
11955 let mut found = false;
11956 let mut row = range.start.row;
11957 while row <= range.end.row {
11958 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
11959 {
11960 found = true;
11961 row = crease.range().end.row + 1;
11962 to_fold.push(crease);
11963 } else {
11964 row += 1
11965 }
11966 }
11967 if found {
11968 continue;
11969 }
11970 }
11971
11972 for row in (0..=range.start.row).rev() {
11973 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11974 if crease.range().end.row >= buffer_start_row {
11975 to_fold.push(crease);
11976 if row <= range.start.row {
11977 break;
11978 }
11979 }
11980 }
11981 }
11982 }
11983
11984 self.fold_creases(to_fold, true, window, cx);
11985 } else {
11986 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
11987
11988 let buffer_ids: HashSet<_> = multi_buffer_snapshot
11989 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
11990 .map(|(snapshot, _, _)| snapshot.remote_id())
11991 .collect();
11992 for buffer_id in buffer_ids {
11993 self.fold_buffer(buffer_id, cx);
11994 }
11995 }
11996 }
11997
11998 fn fold_at_level(
11999 &mut self,
12000 fold_at: &FoldAtLevel,
12001 window: &mut Window,
12002 cx: &mut Context<Self>,
12003 ) {
12004 if !self.buffer.read(cx).is_singleton() {
12005 return;
12006 }
12007
12008 let fold_at_level = fold_at.0;
12009 let snapshot = self.buffer.read(cx).snapshot(cx);
12010 let mut to_fold = Vec::new();
12011 let mut stack = vec![(0, snapshot.max_row().0, 1)];
12012
12013 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
12014 while start_row < end_row {
12015 match self
12016 .snapshot(window, cx)
12017 .crease_for_buffer_row(MultiBufferRow(start_row))
12018 {
12019 Some(crease) => {
12020 let nested_start_row = crease.range().start.row + 1;
12021 let nested_end_row = crease.range().end.row;
12022
12023 if current_level < fold_at_level {
12024 stack.push((nested_start_row, nested_end_row, current_level + 1));
12025 } else if current_level == fold_at_level {
12026 to_fold.push(crease);
12027 }
12028
12029 start_row = nested_end_row + 1;
12030 }
12031 None => start_row += 1,
12032 }
12033 }
12034 }
12035
12036 self.fold_creases(to_fold, true, window, cx);
12037 }
12038
12039 pub fn fold_all(&mut self, _: &actions::FoldAll, window: &mut Window, cx: &mut Context<Self>) {
12040 if self.buffer.read(cx).is_singleton() {
12041 let mut fold_ranges = Vec::new();
12042 let snapshot = self.buffer.read(cx).snapshot(cx);
12043
12044 for row in 0..snapshot.max_row().0 {
12045 if let Some(foldable_range) = self
12046 .snapshot(window, cx)
12047 .crease_for_buffer_row(MultiBufferRow(row))
12048 {
12049 fold_ranges.push(foldable_range);
12050 }
12051 }
12052
12053 self.fold_creases(fold_ranges, true, window, cx);
12054 } else {
12055 self.toggle_fold_multiple_buffers = cx.spawn_in(window, |editor, mut cx| async move {
12056 editor
12057 .update_in(&mut cx, |editor, _, cx| {
12058 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
12059 editor.fold_buffer(buffer_id, cx);
12060 }
12061 })
12062 .ok();
12063 });
12064 }
12065 }
12066
12067 pub fn fold_function_bodies(
12068 &mut self,
12069 _: &actions::FoldFunctionBodies,
12070 window: &mut Window,
12071 cx: &mut Context<Self>,
12072 ) {
12073 let snapshot = self.buffer.read(cx).snapshot(cx);
12074
12075 let ranges = snapshot
12076 .text_object_ranges(0..snapshot.len(), TreeSitterOptions::default())
12077 .filter_map(|(range, obj)| (obj == TextObject::InsideFunction).then_some(range))
12078 .collect::<Vec<_>>();
12079
12080 let creases = ranges
12081 .into_iter()
12082 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
12083 .collect();
12084
12085 self.fold_creases(creases, true, window, cx);
12086 }
12087
12088 pub fn fold_recursive(
12089 &mut self,
12090 _: &actions::FoldRecursive,
12091 window: &mut Window,
12092 cx: &mut Context<Self>,
12093 ) {
12094 let mut to_fold = Vec::new();
12095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12096 let selections = self.selections.all_adjusted(cx);
12097
12098 for selection in selections {
12099 let range = selection.range().sorted();
12100 let buffer_start_row = range.start.row;
12101
12102 if range.start.row != range.end.row {
12103 let mut found = false;
12104 for row in range.start.row..=range.end.row {
12105 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
12106 found = true;
12107 to_fold.push(crease);
12108 }
12109 }
12110 if found {
12111 continue;
12112 }
12113 }
12114
12115 for row in (0..=range.start.row).rev() {
12116 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
12117 if crease.range().end.row >= buffer_start_row {
12118 to_fold.push(crease);
12119 } else {
12120 break;
12121 }
12122 }
12123 }
12124 }
12125
12126 self.fold_creases(to_fold, true, window, cx);
12127 }
12128
12129 pub fn fold_at(&mut self, fold_at: &FoldAt, window: &mut Window, cx: &mut Context<Self>) {
12130 let buffer_row = fold_at.buffer_row;
12131 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12132
12133 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
12134 let autoscroll = self
12135 .selections
12136 .all::<Point>(cx)
12137 .iter()
12138 .any(|selection| crease.range().overlaps(&selection.range()));
12139
12140 self.fold_creases(vec![crease], autoscroll, window, cx);
12141 }
12142 }
12143
12144 pub fn unfold_lines(&mut self, _: &UnfoldLines, _window: &mut Window, cx: &mut Context<Self>) {
12145 if self.is_singleton(cx) {
12146 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12147 let buffer = &display_map.buffer_snapshot;
12148 let selections = self.selections.all::<Point>(cx);
12149 let ranges = selections
12150 .iter()
12151 .map(|s| {
12152 let range = s.display_range(&display_map).sorted();
12153 let mut start = range.start.to_point(&display_map);
12154 let mut end = range.end.to_point(&display_map);
12155 start.column = 0;
12156 end.column = buffer.line_len(MultiBufferRow(end.row));
12157 start..end
12158 })
12159 .collect::<Vec<_>>();
12160
12161 self.unfold_ranges(&ranges, true, true, cx);
12162 } else {
12163 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12164 let buffer_ids: HashSet<_> = multi_buffer_snapshot
12165 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
12166 .map(|(snapshot, _, _)| snapshot.remote_id())
12167 .collect();
12168 for buffer_id in buffer_ids {
12169 self.unfold_buffer(buffer_id, cx);
12170 }
12171 }
12172 }
12173
12174 pub fn unfold_recursive(
12175 &mut self,
12176 _: &UnfoldRecursive,
12177 _window: &mut Window,
12178 cx: &mut Context<Self>,
12179 ) {
12180 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12181 let selections = self.selections.all::<Point>(cx);
12182 let ranges = selections
12183 .iter()
12184 .map(|s| {
12185 let mut range = s.display_range(&display_map).sorted();
12186 *range.start.column_mut() = 0;
12187 *range.end.column_mut() = display_map.line_len(range.end.row());
12188 let start = range.start.to_point(&display_map);
12189 let end = range.end.to_point(&display_map);
12190 start..end
12191 })
12192 .collect::<Vec<_>>();
12193
12194 self.unfold_ranges(&ranges, true, true, cx);
12195 }
12196
12197 pub fn unfold_at(
12198 &mut self,
12199 unfold_at: &UnfoldAt,
12200 _window: &mut Window,
12201 cx: &mut Context<Self>,
12202 ) {
12203 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12204
12205 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
12206 ..Point::new(
12207 unfold_at.buffer_row.0,
12208 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
12209 );
12210
12211 let autoscroll = self
12212 .selections
12213 .all::<Point>(cx)
12214 .iter()
12215 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
12216
12217 self.unfold_ranges(&[intersection_range], true, autoscroll, cx);
12218 }
12219
12220 pub fn unfold_all(
12221 &mut self,
12222 _: &actions::UnfoldAll,
12223 _window: &mut Window,
12224 cx: &mut Context<Self>,
12225 ) {
12226 if self.buffer.read(cx).is_singleton() {
12227 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12228 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
12229 } else {
12230 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
12231 editor
12232 .update(&mut cx, |editor, cx| {
12233 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
12234 editor.unfold_buffer(buffer_id, cx);
12235 }
12236 })
12237 .ok();
12238 });
12239 }
12240 }
12241
12242 pub fn fold_selected_ranges(
12243 &mut self,
12244 _: &FoldSelectedRanges,
12245 window: &mut Window,
12246 cx: &mut Context<Self>,
12247 ) {
12248 let selections = self.selections.all::<Point>(cx);
12249 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12250 let line_mode = self.selections.line_mode;
12251 let ranges = selections
12252 .into_iter()
12253 .map(|s| {
12254 if line_mode {
12255 let start = Point::new(s.start.row, 0);
12256 let end = Point::new(
12257 s.end.row,
12258 display_map
12259 .buffer_snapshot
12260 .line_len(MultiBufferRow(s.end.row)),
12261 );
12262 Crease::simple(start..end, display_map.fold_placeholder.clone())
12263 } else {
12264 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
12265 }
12266 })
12267 .collect::<Vec<_>>();
12268 self.fold_creases(ranges, true, window, cx);
12269 }
12270
12271 pub fn fold_ranges<T: ToOffset + Clone>(
12272 &mut self,
12273 ranges: Vec<Range<T>>,
12274 auto_scroll: bool,
12275 window: &mut Window,
12276 cx: &mut Context<Self>,
12277 ) {
12278 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12279 let ranges = ranges
12280 .into_iter()
12281 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
12282 .collect::<Vec<_>>();
12283 self.fold_creases(ranges, auto_scroll, window, cx);
12284 }
12285
12286 pub fn fold_creases<T: ToOffset + Clone>(
12287 &mut self,
12288 creases: Vec<Crease<T>>,
12289 auto_scroll: bool,
12290 window: &mut Window,
12291 cx: &mut Context<Self>,
12292 ) {
12293 if creases.is_empty() {
12294 return;
12295 }
12296
12297 let mut buffers_affected = HashSet::default();
12298 let multi_buffer = self.buffer().read(cx);
12299 for crease in &creases {
12300 if let Some((_, buffer, _)) =
12301 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
12302 {
12303 buffers_affected.insert(buffer.read(cx).remote_id());
12304 };
12305 }
12306
12307 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
12308
12309 if auto_scroll {
12310 self.request_autoscroll(Autoscroll::fit(), cx);
12311 }
12312
12313 cx.notify();
12314
12315 if let Some(active_diagnostics) = self.active_diagnostics.take() {
12316 // Clear diagnostics block when folding a range that contains it.
12317 let snapshot = self.snapshot(window, cx);
12318 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
12319 drop(snapshot);
12320 self.active_diagnostics = Some(active_diagnostics);
12321 self.dismiss_diagnostics(cx);
12322 } else {
12323 self.active_diagnostics = Some(active_diagnostics);
12324 }
12325 }
12326
12327 self.scrollbar_marker_state.dirty = true;
12328 }
12329
12330 /// Removes any folds whose ranges intersect any of the given ranges.
12331 pub fn unfold_ranges<T: ToOffset + Clone>(
12332 &mut self,
12333 ranges: &[Range<T>],
12334 inclusive: bool,
12335 auto_scroll: bool,
12336 cx: &mut Context<Self>,
12337 ) {
12338 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
12339 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
12340 });
12341 }
12342
12343 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut Context<Self>) {
12344 if self.buffer().read(cx).is_singleton() || self.is_buffer_folded(buffer_id, cx) {
12345 return;
12346 }
12347 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(buffer_id, cx);
12348 self.display_map
12349 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
12350 cx.emit(EditorEvent::BufferFoldToggled {
12351 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
12352 folded: true,
12353 });
12354 cx.notify();
12355 }
12356
12357 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut Context<Self>) {
12358 if self.buffer().read(cx).is_singleton() || !self.is_buffer_folded(buffer_id, cx) {
12359 return;
12360 }
12361 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(buffer_id, cx);
12362 self.display_map.update(cx, |display_map, cx| {
12363 display_map.unfold_buffer(buffer_id, cx);
12364 });
12365 cx.emit(EditorEvent::BufferFoldToggled {
12366 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
12367 folded: false,
12368 });
12369 cx.notify();
12370 }
12371
12372 pub fn is_buffer_folded(&self, buffer: BufferId, cx: &App) -> bool {
12373 self.display_map.read(cx).is_buffer_folded(buffer)
12374 }
12375
12376 pub fn folded_buffers<'a>(&self, cx: &'a App) -> &'a HashSet<BufferId> {
12377 self.display_map.read(cx).folded_buffers()
12378 }
12379
12380 /// Removes any folds with the given ranges.
12381 pub fn remove_folds_with_type<T: ToOffset + Clone>(
12382 &mut self,
12383 ranges: &[Range<T>],
12384 type_id: TypeId,
12385 auto_scroll: bool,
12386 cx: &mut Context<Self>,
12387 ) {
12388 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
12389 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
12390 });
12391 }
12392
12393 fn remove_folds_with<T: ToOffset + Clone>(
12394 &mut self,
12395 ranges: &[Range<T>],
12396 auto_scroll: bool,
12397 cx: &mut Context<Self>,
12398 update: impl FnOnce(&mut DisplayMap, &mut Context<DisplayMap>),
12399 ) {
12400 if ranges.is_empty() {
12401 return;
12402 }
12403
12404 let mut buffers_affected = HashSet::default();
12405 let multi_buffer = self.buffer().read(cx);
12406 for range in ranges {
12407 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
12408 buffers_affected.insert(buffer.read(cx).remote_id());
12409 };
12410 }
12411
12412 self.display_map.update(cx, update);
12413
12414 if auto_scroll {
12415 self.request_autoscroll(Autoscroll::fit(), cx);
12416 }
12417
12418 cx.notify();
12419 self.scrollbar_marker_state.dirty = true;
12420 self.active_indent_guides_state.dirty = true;
12421 }
12422
12423 pub fn default_fold_placeholder(&self, cx: &App) -> FoldPlaceholder {
12424 self.display_map.read(cx).fold_placeholder.clone()
12425 }
12426
12427 pub fn set_expand_all_diff_hunks(&mut self, cx: &mut App) {
12428 self.buffer.update(cx, |buffer, cx| {
12429 buffer.set_all_diff_hunks_expanded(cx);
12430 });
12431 }
12432
12433 pub fn set_distinguish_unstaged_diff_hunks(&mut self) {
12434 self.distinguish_unstaged_diff_hunks = true;
12435 }
12436
12437 pub fn expand_all_diff_hunks(
12438 &mut self,
12439 _: &ExpandAllHunkDiffs,
12440 _window: &mut Window,
12441 cx: &mut Context<Self>,
12442 ) {
12443 self.buffer.update(cx, |buffer, cx| {
12444 buffer.expand_diff_hunks(vec![Anchor::min()..Anchor::max()], cx)
12445 });
12446 }
12447
12448 pub fn toggle_selected_diff_hunks(
12449 &mut self,
12450 _: &ToggleSelectedDiffHunks,
12451 _window: &mut Window,
12452 cx: &mut Context<Self>,
12453 ) {
12454 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12455 self.toggle_diff_hunks_in_ranges(ranges, cx);
12456 }
12457
12458 fn diff_hunks_in_ranges<'a>(
12459 &'a self,
12460 ranges: &'a [Range<Anchor>],
12461 buffer: &'a MultiBufferSnapshot,
12462 ) -> impl 'a + Iterator<Item = MultiBufferDiffHunk> {
12463 ranges.iter().flat_map(move |range| {
12464 let end_excerpt_id = range.end.excerpt_id;
12465 let range = range.to_point(buffer);
12466 let mut peek_end = range.end;
12467 if range.end.row < buffer.max_row().0 {
12468 peek_end = Point::new(range.end.row + 1, 0);
12469 }
12470 buffer
12471 .diff_hunks_in_range(range.start..peek_end)
12472 .filter(move |hunk| hunk.excerpt_id.cmp(&end_excerpt_id, buffer).is_le())
12473 })
12474 }
12475
12476 pub fn has_stageable_diff_hunks_in_ranges(
12477 &self,
12478 ranges: &[Range<Anchor>],
12479 snapshot: &MultiBufferSnapshot,
12480 ) -> bool {
12481 let mut hunks = self.diff_hunks_in_ranges(ranges, &snapshot);
12482 hunks.any(|hunk| {
12483 log::debug!("considering {hunk:?}");
12484 hunk.secondary_status == DiffHunkSecondaryStatus::HasSecondaryHunk
12485 })
12486 }
12487
12488 pub fn toggle_staged_selected_diff_hunks(
12489 &mut self,
12490 _: &ToggleStagedSelectedDiffHunks,
12491 _window: &mut Window,
12492 cx: &mut Context<Self>,
12493 ) {
12494 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12495 self.stage_or_unstage_diff_hunks(&ranges, cx);
12496 }
12497
12498 pub fn stage_or_unstage_diff_hunks(
12499 &mut self,
12500 ranges: &[Range<Anchor>],
12501 cx: &mut Context<Self>,
12502 ) {
12503 let Some(project) = &self.project else {
12504 return;
12505 };
12506 let snapshot = self.buffer.read(cx).snapshot(cx);
12507 let stage = self.has_stageable_diff_hunks_in_ranges(ranges, &snapshot);
12508
12509 let chunk_by = self
12510 .diff_hunks_in_ranges(&ranges, &snapshot)
12511 .chunk_by(|hunk| hunk.buffer_id);
12512 for (buffer_id, hunks) in &chunk_by {
12513 let Some(buffer) = project.read(cx).buffer_for_id(buffer_id, cx) else {
12514 log::debug!("no buffer for id");
12515 continue;
12516 };
12517 let buffer = buffer.read(cx).snapshot();
12518 let Some((repo, path)) = project
12519 .read(cx)
12520 .repository_and_path_for_buffer_id(buffer_id, cx)
12521 else {
12522 log::debug!("no git repo for buffer id");
12523 continue;
12524 };
12525 let Some(diff) = snapshot.diff_for_buffer_id(buffer_id) else {
12526 log::debug!("no diff for buffer id");
12527 continue;
12528 };
12529 let Some(secondary_diff) = diff.secondary_diff() else {
12530 log::debug!("no secondary diff for buffer id");
12531 continue;
12532 };
12533
12534 let edits = diff.secondary_edits_for_stage_or_unstage(
12535 stage,
12536 hunks.map(|hunk| {
12537 (
12538 hunk.diff_base_byte_range.clone(),
12539 hunk.secondary_diff_base_byte_range.clone(),
12540 hunk.buffer_range.clone(),
12541 )
12542 }),
12543 &buffer,
12544 );
12545
12546 let index_base = secondary_diff.base_text().map_or_else(
12547 || Rope::from(""),
12548 |snapshot| snapshot.text.as_rope().clone(),
12549 );
12550 let index_buffer = cx.new(|cx| {
12551 Buffer::local_normalized(index_base.clone(), text::LineEnding::default(), cx)
12552 });
12553 let new_index_text = index_buffer.update(cx, |index_buffer, cx| {
12554 index_buffer.edit(edits, None, cx);
12555 index_buffer.snapshot().as_rope().to_string()
12556 });
12557 let new_index_text = if new_index_text.is_empty()
12558 && (diff.is_single_insertion
12559 || buffer
12560 .file()
12561 .map_or(false, |file| file.disk_state() == DiskState::New))
12562 {
12563 log::debug!("removing from index");
12564 None
12565 } else {
12566 Some(new_index_text)
12567 };
12568
12569 let _ = repo.read(cx).set_index_text(&path, new_index_text);
12570 }
12571 }
12572
12573 pub fn expand_selected_diff_hunks(&mut self, cx: &mut Context<Self>) {
12574 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12575 self.buffer
12576 .update(cx, |buffer, cx| buffer.expand_diff_hunks(ranges, cx))
12577 }
12578
12579 pub fn clear_expanded_diff_hunks(&mut self, cx: &mut Context<Self>) -> bool {
12580 self.buffer.update(cx, |buffer, cx| {
12581 let ranges = vec![Anchor::min()..Anchor::max()];
12582 if !buffer.all_diff_hunks_expanded()
12583 && buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx)
12584 {
12585 buffer.collapse_diff_hunks(ranges, cx);
12586 true
12587 } else {
12588 false
12589 }
12590 })
12591 }
12592
12593 fn toggle_diff_hunks_in_ranges(
12594 &mut self,
12595 ranges: Vec<Range<Anchor>>,
12596 cx: &mut Context<'_, Editor>,
12597 ) {
12598 self.buffer.update(cx, |buffer, cx| {
12599 let expand = !buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx);
12600 buffer.expand_or_collapse_diff_hunks(ranges, expand, cx);
12601 })
12602 }
12603
12604 fn toggle_diff_hunks_in_ranges_narrow(
12605 &mut self,
12606 ranges: Vec<Range<Anchor>>,
12607 cx: &mut Context<'_, Editor>,
12608 ) {
12609 self.buffer.update(cx, |buffer, cx| {
12610 let expand = !buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx);
12611 buffer.expand_or_collapse_diff_hunks_narrow(ranges, expand, cx);
12612 })
12613 }
12614
12615 pub(crate) fn apply_all_diff_hunks(
12616 &mut self,
12617 _: &ApplyAllDiffHunks,
12618 window: &mut Window,
12619 cx: &mut Context<Self>,
12620 ) {
12621 let buffers = self.buffer.read(cx).all_buffers();
12622 for branch_buffer in buffers {
12623 branch_buffer.update(cx, |branch_buffer, cx| {
12624 branch_buffer.merge_into_base(Vec::new(), cx);
12625 });
12626 }
12627
12628 if let Some(project) = self.project.clone() {
12629 self.save(true, project, window, cx).detach_and_log_err(cx);
12630 }
12631 }
12632
12633 pub(crate) fn apply_selected_diff_hunks(
12634 &mut self,
12635 _: &ApplyDiffHunk,
12636 window: &mut Window,
12637 cx: &mut Context<Self>,
12638 ) {
12639 let snapshot = self.snapshot(window, cx);
12640 let hunks = snapshot.hunks_for_ranges(self.selections.ranges(cx).into_iter());
12641 let mut ranges_by_buffer = HashMap::default();
12642 self.transact(window, cx, |editor, _window, cx| {
12643 for hunk in hunks {
12644 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
12645 ranges_by_buffer
12646 .entry(buffer.clone())
12647 .or_insert_with(Vec::new)
12648 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
12649 }
12650 }
12651
12652 for (buffer, ranges) in ranges_by_buffer {
12653 buffer.update(cx, |buffer, cx| {
12654 buffer.merge_into_base(ranges, cx);
12655 });
12656 }
12657 });
12658
12659 if let Some(project) = self.project.clone() {
12660 self.save(true, project, window, cx).detach_and_log_err(cx);
12661 }
12662 }
12663
12664 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut Context<Self>) {
12665 if hovered != self.gutter_hovered {
12666 self.gutter_hovered = hovered;
12667 cx.notify();
12668 }
12669 }
12670
12671 pub fn insert_blocks(
12672 &mut self,
12673 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
12674 autoscroll: Option<Autoscroll>,
12675 cx: &mut Context<Self>,
12676 ) -> Vec<CustomBlockId> {
12677 let blocks = self
12678 .display_map
12679 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
12680 if let Some(autoscroll) = autoscroll {
12681 self.request_autoscroll(autoscroll, cx);
12682 }
12683 cx.notify();
12684 blocks
12685 }
12686
12687 pub fn resize_blocks(
12688 &mut self,
12689 heights: HashMap<CustomBlockId, u32>,
12690 autoscroll: Option<Autoscroll>,
12691 cx: &mut Context<Self>,
12692 ) {
12693 self.display_map
12694 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
12695 if let Some(autoscroll) = autoscroll {
12696 self.request_autoscroll(autoscroll, cx);
12697 }
12698 cx.notify();
12699 }
12700
12701 pub fn replace_blocks(
12702 &mut self,
12703 renderers: HashMap<CustomBlockId, RenderBlock>,
12704 autoscroll: Option<Autoscroll>,
12705 cx: &mut Context<Self>,
12706 ) {
12707 self.display_map
12708 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
12709 if let Some(autoscroll) = autoscroll {
12710 self.request_autoscroll(autoscroll, cx);
12711 }
12712 cx.notify();
12713 }
12714
12715 pub fn remove_blocks(
12716 &mut self,
12717 block_ids: HashSet<CustomBlockId>,
12718 autoscroll: Option<Autoscroll>,
12719 cx: &mut Context<Self>,
12720 ) {
12721 self.display_map.update(cx, |display_map, cx| {
12722 display_map.remove_blocks(block_ids, cx)
12723 });
12724 if let Some(autoscroll) = autoscroll {
12725 self.request_autoscroll(autoscroll, cx);
12726 }
12727 cx.notify();
12728 }
12729
12730 pub fn row_for_block(
12731 &self,
12732 block_id: CustomBlockId,
12733 cx: &mut Context<Self>,
12734 ) -> Option<DisplayRow> {
12735 self.display_map
12736 .update(cx, |map, cx| map.row_for_block(block_id, cx))
12737 }
12738
12739 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
12740 self.focused_block = Some(focused_block);
12741 }
12742
12743 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
12744 self.focused_block.take()
12745 }
12746
12747 pub fn insert_creases(
12748 &mut self,
12749 creases: impl IntoIterator<Item = Crease<Anchor>>,
12750 cx: &mut Context<Self>,
12751 ) -> Vec<CreaseId> {
12752 self.display_map
12753 .update(cx, |map, cx| map.insert_creases(creases, cx))
12754 }
12755
12756 pub fn remove_creases(
12757 &mut self,
12758 ids: impl IntoIterator<Item = CreaseId>,
12759 cx: &mut Context<Self>,
12760 ) {
12761 self.display_map
12762 .update(cx, |map, cx| map.remove_creases(ids, cx));
12763 }
12764
12765 pub fn longest_row(&self, cx: &mut App) -> DisplayRow {
12766 self.display_map
12767 .update(cx, |map, cx| map.snapshot(cx))
12768 .longest_row()
12769 }
12770
12771 pub fn max_point(&self, cx: &mut App) -> DisplayPoint {
12772 self.display_map
12773 .update(cx, |map, cx| map.snapshot(cx))
12774 .max_point()
12775 }
12776
12777 pub fn text(&self, cx: &App) -> String {
12778 self.buffer.read(cx).read(cx).text()
12779 }
12780
12781 pub fn is_empty(&self, cx: &App) -> bool {
12782 self.buffer.read(cx).read(cx).is_empty()
12783 }
12784
12785 pub fn text_option(&self, cx: &App) -> Option<String> {
12786 let text = self.text(cx);
12787 let text = text.trim();
12788
12789 if text.is_empty() {
12790 return None;
12791 }
12792
12793 Some(text.to_string())
12794 }
12795
12796 pub fn set_text(
12797 &mut self,
12798 text: impl Into<Arc<str>>,
12799 window: &mut Window,
12800 cx: &mut Context<Self>,
12801 ) {
12802 self.transact(window, cx, |this, _, cx| {
12803 this.buffer
12804 .read(cx)
12805 .as_singleton()
12806 .expect("you can only call set_text on editors for singleton buffers")
12807 .update(cx, |buffer, cx| buffer.set_text(text, cx));
12808 });
12809 }
12810
12811 pub fn display_text(&self, cx: &mut App) -> String {
12812 self.display_map
12813 .update(cx, |map, cx| map.snapshot(cx))
12814 .text()
12815 }
12816
12817 pub fn wrap_guides(&self, cx: &App) -> SmallVec<[(usize, bool); 2]> {
12818 let mut wrap_guides = smallvec::smallvec![];
12819
12820 if self.show_wrap_guides == Some(false) {
12821 return wrap_guides;
12822 }
12823
12824 let settings = self.buffer.read(cx).settings_at(0, cx);
12825 if settings.show_wrap_guides {
12826 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
12827 wrap_guides.push((soft_wrap as usize, true));
12828 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
12829 wrap_guides.push((soft_wrap as usize, true));
12830 }
12831 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
12832 }
12833
12834 wrap_guides
12835 }
12836
12837 pub fn soft_wrap_mode(&self, cx: &App) -> SoftWrap {
12838 let settings = self.buffer.read(cx).settings_at(0, cx);
12839 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
12840 match mode {
12841 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
12842 SoftWrap::None
12843 }
12844 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
12845 language_settings::SoftWrap::PreferredLineLength => {
12846 SoftWrap::Column(settings.preferred_line_length)
12847 }
12848 language_settings::SoftWrap::Bounded => {
12849 SoftWrap::Bounded(settings.preferred_line_length)
12850 }
12851 }
12852 }
12853
12854 pub fn set_soft_wrap_mode(
12855 &mut self,
12856 mode: language_settings::SoftWrap,
12857
12858 cx: &mut Context<Self>,
12859 ) {
12860 self.soft_wrap_mode_override = Some(mode);
12861 cx.notify();
12862 }
12863
12864 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
12865 self.text_style_refinement = Some(style);
12866 }
12867
12868 /// called by the Element so we know what style we were most recently rendered with.
12869 pub(crate) fn set_style(
12870 &mut self,
12871 style: EditorStyle,
12872 window: &mut Window,
12873 cx: &mut Context<Self>,
12874 ) {
12875 let rem_size = window.rem_size();
12876 self.display_map.update(cx, |map, cx| {
12877 map.set_font(
12878 style.text.font(),
12879 style.text.font_size.to_pixels(rem_size),
12880 cx,
12881 )
12882 });
12883 self.style = Some(style);
12884 }
12885
12886 pub fn style(&self) -> Option<&EditorStyle> {
12887 self.style.as_ref()
12888 }
12889
12890 // Called by the element. This method is not designed to be called outside of the editor
12891 // element's layout code because it does not notify when rewrapping is computed synchronously.
12892 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut App) -> bool {
12893 self.display_map
12894 .update(cx, |map, cx| map.set_wrap_width(width, cx))
12895 }
12896
12897 pub fn set_soft_wrap(&mut self) {
12898 self.soft_wrap_mode_override = Some(language_settings::SoftWrap::EditorWidth)
12899 }
12900
12901 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, _: &mut Window, cx: &mut Context<Self>) {
12902 if self.soft_wrap_mode_override.is_some() {
12903 self.soft_wrap_mode_override.take();
12904 } else {
12905 let soft_wrap = match self.soft_wrap_mode(cx) {
12906 SoftWrap::GitDiff => return,
12907 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
12908 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
12909 language_settings::SoftWrap::None
12910 }
12911 };
12912 self.soft_wrap_mode_override = Some(soft_wrap);
12913 }
12914 cx.notify();
12915 }
12916
12917 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, _: &mut Window, cx: &mut Context<Self>) {
12918 let Some(workspace) = self.workspace() else {
12919 return;
12920 };
12921 let fs = workspace.read(cx).app_state().fs.clone();
12922 let current_show = TabBarSettings::get_global(cx).show;
12923 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
12924 setting.show = Some(!current_show);
12925 });
12926 }
12927
12928 pub fn toggle_indent_guides(
12929 &mut self,
12930 _: &ToggleIndentGuides,
12931 _: &mut Window,
12932 cx: &mut Context<Self>,
12933 ) {
12934 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
12935 self.buffer
12936 .read(cx)
12937 .settings_at(0, cx)
12938 .indent_guides
12939 .enabled
12940 });
12941 self.show_indent_guides = Some(!currently_enabled);
12942 cx.notify();
12943 }
12944
12945 fn should_show_indent_guides(&self) -> Option<bool> {
12946 self.show_indent_guides
12947 }
12948
12949 pub fn toggle_line_numbers(
12950 &mut self,
12951 _: &ToggleLineNumbers,
12952 _: &mut Window,
12953 cx: &mut Context<Self>,
12954 ) {
12955 let mut editor_settings = EditorSettings::get_global(cx).clone();
12956 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
12957 EditorSettings::override_global(editor_settings, cx);
12958 }
12959
12960 pub fn should_use_relative_line_numbers(&self, cx: &mut App) -> bool {
12961 self.use_relative_line_numbers
12962 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
12963 }
12964
12965 pub fn toggle_relative_line_numbers(
12966 &mut self,
12967 _: &ToggleRelativeLineNumbers,
12968 _: &mut Window,
12969 cx: &mut Context<Self>,
12970 ) {
12971 let is_relative = self.should_use_relative_line_numbers(cx);
12972 self.set_relative_line_number(Some(!is_relative), cx)
12973 }
12974
12975 pub fn set_relative_line_number(&mut self, is_relative: Option<bool>, cx: &mut Context<Self>) {
12976 self.use_relative_line_numbers = is_relative;
12977 cx.notify();
12978 }
12979
12980 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut Context<Self>) {
12981 self.show_gutter = show_gutter;
12982 cx.notify();
12983 }
12984
12985 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut Context<Self>) {
12986 self.show_scrollbars = show_scrollbars;
12987 cx.notify();
12988 }
12989
12990 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut Context<Self>) {
12991 self.show_line_numbers = Some(show_line_numbers);
12992 cx.notify();
12993 }
12994
12995 pub fn set_show_git_diff_gutter(&mut self, show_git_diff_gutter: bool, cx: &mut Context<Self>) {
12996 self.show_git_diff_gutter = Some(show_git_diff_gutter);
12997 cx.notify();
12998 }
12999
13000 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut Context<Self>) {
13001 self.show_code_actions = Some(show_code_actions);
13002 cx.notify();
13003 }
13004
13005 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut Context<Self>) {
13006 self.show_runnables = Some(show_runnables);
13007 cx.notify();
13008 }
13009
13010 pub fn set_masked(&mut self, masked: bool, cx: &mut Context<Self>) {
13011 if self.display_map.read(cx).masked != masked {
13012 self.display_map.update(cx, |map, _| map.masked = masked);
13013 }
13014 cx.notify()
13015 }
13016
13017 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut Context<Self>) {
13018 self.show_wrap_guides = Some(show_wrap_guides);
13019 cx.notify();
13020 }
13021
13022 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut Context<Self>) {
13023 self.show_indent_guides = Some(show_indent_guides);
13024 cx.notify();
13025 }
13026
13027 pub fn working_directory(&self, cx: &App) -> Option<PathBuf> {
13028 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
13029 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
13030 if let Some(dir) = file.abs_path(cx).parent() {
13031 return Some(dir.to_owned());
13032 }
13033 }
13034
13035 if let Some(project_path) = buffer.read(cx).project_path(cx) {
13036 return Some(project_path.path.to_path_buf());
13037 }
13038 }
13039
13040 None
13041 }
13042
13043 fn target_file<'a>(&self, cx: &'a App) -> Option<&'a dyn language::LocalFile> {
13044 self.active_excerpt(cx)?
13045 .1
13046 .read(cx)
13047 .file()
13048 .and_then(|f| f.as_local())
13049 }
13050
13051 pub fn target_file_abs_path(&self, cx: &mut Context<Self>) -> Option<PathBuf> {
13052 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
13053 let buffer = buffer.read(cx);
13054 if let Some(project_path) = buffer.project_path(cx) {
13055 let project = self.project.as_ref()?.read(cx);
13056 project.absolute_path(&project_path, cx)
13057 } else {
13058 buffer
13059 .file()
13060 .and_then(|file| file.as_local().map(|file| file.abs_path(cx)))
13061 }
13062 })
13063 }
13064
13065 fn target_file_path(&self, cx: &mut Context<Self>) -> Option<PathBuf> {
13066 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
13067 let project_path = buffer.read(cx).project_path(cx)?;
13068 let project = self.project.as_ref()?.read(cx);
13069 let entry = project.entry_for_path(&project_path, cx)?;
13070 let path = entry.path.to_path_buf();
13071 Some(path)
13072 })
13073 }
13074
13075 pub fn reveal_in_finder(
13076 &mut self,
13077 _: &RevealInFileManager,
13078 _window: &mut Window,
13079 cx: &mut Context<Self>,
13080 ) {
13081 if let Some(target) = self.target_file(cx) {
13082 cx.reveal_path(&target.abs_path(cx));
13083 }
13084 }
13085
13086 pub fn copy_path(&mut self, _: &CopyPath, _window: &mut Window, cx: &mut Context<Self>) {
13087 if let Some(path) = self.target_file_abs_path(cx) {
13088 if let Some(path) = path.to_str() {
13089 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
13090 }
13091 }
13092 }
13093
13094 pub fn copy_relative_path(
13095 &mut self,
13096 _: &CopyRelativePath,
13097 _window: &mut Window,
13098 cx: &mut Context<Self>,
13099 ) {
13100 if let Some(path) = self.target_file_path(cx) {
13101 if let Some(path) = path.to_str() {
13102 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
13103 }
13104 }
13105 }
13106
13107 pub fn copy_file_name_without_extension(
13108 &mut self,
13109 _: &CopyFileNameWithoutExtension,
13110 _: &mut Window,
13111 cx: &mut Context<Self>,
13112 ) {
13113 if let Some(file) = self.target_file(cx) {
13114 if let Some(file_stem) = file.path().file_stem() {
13115 if let Some(name) = file_stem.to_str() {
13116 cx.write_to_clipboard(ClipboardItem::new_string(name.to_string()));
13117 }
13118 }
13119 }
13120 }
13121
13122 pub fn copy_file_name(&mut self, _: &CopyFileName, _: &mut Window, cx: &mut Context<Self>) {
13123 if let Some(file) = self.target_file(cx) {
13124 if let Some(file_name) = file.path().file_name() {
13125 if let Some(name) = file_name.to_str() {
13126 cx.write_to_clipboard(ClipboardItem::new_string(name.to_string()));
13127 }
13128 }
13129 }
13130 }
13131
13132 pub fn toggle_git_blame(
13133 &mut self,
13134 _: &ToggleGitBlame,
13135 window: &mut Window,
13136 cx: &mut Context<Self>,
13137 ) {
13138 self.show_git_blame_gutter = !self.show_git_blame_gutter;
13139
13140 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
13141 self.start_git_blame(true, window, cx);
13142 }
13143
13144 cx.notify();
13145 }
13146
13147 pub fn toggle_git_blame_inline(
13148 &mut self,
13149 _: &ToggleGitBlameInline,
13150 window: &mut Window,
13151 cx: &mut Context<Self>,
13152 ) {
13153 self.toggle_git_blame_inline_internal(true, window, cx);
13154 cx.notify();
13155 }
13156
13157 pub fn git_blame_inline_enabled(&self) -> bool {
13158 self.git_blame_inline_enabled
13159 }
13160
13161 pub fn toggle_selection_menu(
13162 &mut self,
13163 _: &ToggleSelectionMenu,
13164 _: &mut Window,
13165 cx: &mut Context<Self>,
13166 ) {
13167 self.show_selection_menu = self
13168 .show_selection_menu
13169 .map(|show_selections_menu| !show_selections_menu)
13170 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
13171
13172 cx.notify();
13173 }
13174
13175 pub fn selection_menu_enabled(&self, cx: &App) -> bool {
13176 self.show_selection_menu
13177 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
13178 }
13179
13180 fn start_git_blame(
13181 &mut self,
13182 user_triggered: bool,
13183 window: &mut Window,
13184 cx: &mut Context<Self>,
13185 ) {
13186 if let Some(project) = self.project.as_ref() {
13187 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
13188 return;
13189 };
13190
13191 if buffer.read(cx).file().is_none() {
13192 return;
13193 }
13194
13195 let focused = self.focus_handle(cx).contains_focused(window, cx);
13196
13197 let project = project.clone();
13198 let blame = cx.new(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
13199 self.blame_subscription =
13200 Some(cx.observe_in(&blame, window, |_, _, _, cx| cx.notify()));
13201 self.blame = Some(blame);
13202 }
13203 }
13204
13205 fn toggle_git_blame_inline_internal(
13206 &mut self,
13207 user_triggered: bool,
13208 window: &mut Window,
13209 cx: &mut Context<Self>,
13210 ) {
13211 if self.git_blame_inline_enabled {
13212 self.git_blame_inline_enabled = false;
13213 self.show_git_blame_inline = false;
13214 self.show_git_blame_inline_delay_task.take();
13215 } else {
13216 self.git_blame_inline_enabled = true;
13217 self.start_git_blame_inline(user_triggered, window, cx);
13218 }
13219
13220 cx.notify();
13221 }
13222
13223 fn start_git_blame_inline(
13224 &mut self,
13225 user_triggered: bool,
13226 window: &mut Window,
13227 cx: &mut Context<Self>,
13228 ) {
13229 self.start_git_blame(user_triggered, window, cx);
13230
13231 if ProjectSettings::get_global(cx)
13232 .git
13233 .inline_blame_delay()
13234 .is_some()
13235 {
13236 self.start_inline_blame_timer(window, cx);
13237 } else {
13238 self.show_git_blame_inline = true
13239 }
13240 }
13241
13242 pub fn blame(&self) -> Option<&Entity<GitBlame>> {
13243 self.blame.as_ref()
13244 }
13245
13246 pub fn show_git_blame_gutter(&self) -> bool {
13247 self.show_git_blame_gutter
13248 }
13249
13250 pub fn render_git_blame_gutter(&self, cx: &App) -> bool {
13251 self.show_git_blame_gutter && self.has_blame_entries(cx)
13252 }
13253
13254 pub fn render_git_blame_inline(&self, window: &Window, cx: &App) -> bool {
13255 self.show_git_blame_inline
13256 && self.focus_handle.is_focused(window)
13257 && !self.newest_selection_head_on_empty_line(cx)
13258 && self.has_blame_entries(cx)
13259 }
13260
13261 fn has_blame_entries(&self, cx: &App) -> bool {
13262 self.blame()
13263 .map_or(false, |blame| blame.read(cx).has_generated_entries())
13264 }
13265
13266 fn newest_selection_head_on_empty_line(&self, cx: &App) -> bool {
13267 let cursor_anchor = self.selections.newest_anchor().head();
13268
13269 let snapshot = self.buffer.read(cx).snapshot(cx);
13270 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
13271
13272 snapshot.line_len(buffer_row) == 0
13273 }
13274
13275 fn get_permalink_to_line(&self, cx: &mut Context<Self>) -> Task<Result<url::Url>> {
13276 let buffer_and_selection = maybe!({
13277 let selection = self.selections.newest::<Point>(cx);
13278 let selection_range = selection.range();
13279
13280 let multi_buffer = self.buffer().read(cx);
13281 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
13282 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
13283
13284 let (buffer, range, _) = if selection.reversed {
13285 buffer_ranges.first()
13286 } else {
13287 buffer_ranges.last()
13288 }?;
13289
13290 let selection = text::ToPoint::to_point(&range.start, &buffer).row
13291 ..text::ToPoint::to_point(&range.end, &buffer).row;
13292 Some((
13293 multi_buffer.buffer(buffer.remote_id()).unwrap().clone(),
13294 selection,
13295 ))
13296 });
13297
13298 let Some((buffer, selection)) = buffer_and_selection else {
13299 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
13300 };
13301
13302 let Some(project) = self.project.as_ref() else {
13303 return Task::ready(Err(anyhow!("editor does not have project")));
13304 };
13305
13306 project.update(cx, |project, cx| {
13307 project.get_permalink_to_line(&buffer, selection, cx)
13308 })
13309 }
13310
13311 pub fn copy_permalink_to_line(
13312 &mut self,
13313 _: &CopyPermalinkToLine,
13314 window: &mut Window,
13315 cx: &mut Context<Self>,
13316 ) {
13317 let permalink_task = self.get_permalink_to_line(cx);
13318 let workspace = self.workspace();
13319
13320 cx.spawn_in(window, |_, mut cx| async move {
13321 match permalink_task.await {
13322 Ok(permalink) => {
13323 cx.update(|_, cx| {
13324 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
13325 })
13326 .ok();
13327 }
13328 Err(err) => {
13329 let message = format!("Failed to copy permalink: {err}");
13330
13331 Err::<(), anyhow::Error>(err).log_err();
13332
13333 if let Some(workspace) = workspace {
13334 workspace
13335 .update_in(&mut cx, |workspace, _, cx| {
13336 struct CopyPermalinkToLine;
13337
13338 workspace.show_toast(
13339 Toast::new(
13340 NotificationId::unique::<CopyPermalinkToLine>(),
13341 message,
13342 ),
13343 cx,
13344 )
13345 })
13346 .ok();
13347 }
13348 }
13349 }
13350 })
13351 .detach();
13352 }
13353
13354 pub fn copy_file_location(
13355 &mut self,
13356 _: &CopyFileLocation,
13357 _: &mut Window,
13358 cx: &mut Context<Self>,
13359 ) {
13360 let selection = self.selections.newest::<Point>(cx).start.row + 1;
13361 if let Some(file) = self.target_file(cx) {
13362 if let Some(path) = file.path().to_str() {
13363 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
13364 }
13365 }
13366 }
13367
13368 pub fn open_permalink_to_line(
13369 &mut self,
13370 _: &OpenPermalinkToLine,
13371 window: &mut Window,
13372 cx: &mut Context<Self>,
13373 ) {
13374 let permalink_task = self.get_permalink_to_line(cx);
13375 let workspace = self.workspace();
13376
13377 cx.spawn_in(window, |_, mut cx| async move {
13378 match permalink_task.await {
13379 Ok(permalink) => {
13380 cx.update(|_, cx| {
13381 cx.open_url(permalink.as_ref());
13382 })
13383 .ok();
13384 }
13385 Err(err) => {
13386 let message = format!("Failed to open permalink: {err}");
13387
13388 Err::<(), anyhow::Error>(err).log_err();
13389
13390 if let Some(workspace) = workspace {
13391 workspace
13392 .update(&mut cx, |workspace, cx| {
13393 struct OpenPermalinkToLine;
13394
13395 workspace.show_toast(
13396 Toast::new(
13397 NotificationId::unique::<OpenPermalinkToLine>(),
13398 message,
13399 ),
13400 cx,
13401 )
13402 })
13403 .ok();
13404 }
13405 }
13406 }
13407 })
13408 .detach();
13409 }
13410
13411 pub fn insert_uuid_v4(
13412 &mut self,
13413 _: &InsertUuidV4,
13414 window: &mut Window,
13415 cx: &mut Context<Self>,
13416 ) {
13417 self.insert_uuid(UuidVersion::V4, window, cx);
13418 }
13419
13420 pub fn insert_uuid_v7(
13421 &mut self,
13422 _: &InsertUuidV7,
13423 window: &mut Window,
13424 cx: &mut Context<Self>,
13425 ) {
13426 self.insert_uuid(UuidVersion::V7, window, cx);
13427 }
13428
13429 fn insert_uuid(&mut self, version: UuidVersion, window: &mut Window, cx: &mut Context<Self>) {
13430 self.transact(window, cx, |this, window, cx| {
13431 let edits = this
13432 .selections
13433 .all::<Point>(cx)
13434 .into_iter()
13435 .map(|selection| {
13436 let uuid = match version {
13437 UuidVersion::V4 => uuid::Uuid::new_v4(),
13438 UuidVersion::V7 => uuid::Uuid::now_v7(),
13439 };
13440
13441 (selection.range(), uuid.to_string())
13442 });
13443 this.edit(edits, cx);
13444 this.refresh_inline_completion(true, false, window, cx);
13445 });
13446 }
13447
13448 pub fn open_selections_in_multibuffer(
13449 &mut self,
13450 _: &OpenSelectionsInMultibuffer,
13451 window: &mut Window,
13452 cx: &mut Context<Self>,
13453 ) {
13454 let multibuffer = self.buffer.read(cx);
13455
13456 let Some(buffer) = multibuffer.as_singleton() else {
13457 return;
13458 };
13459
13460 let Some(workspace) = self.workspace() else {
13461 return;
13462 };
13463
13464 let locations = self
13465 .selections
13466 .disjoint_anchors()
13467 .iter()
13468 .map(|range| Location {
13469 buffer: buffer.clone(),
13470 range: range.start.text_anchor..range.end.text_anchor,
13471 })
13472 .collect::<Vec<_>>();
13473
13474 let title = multibuffer.title(cx).to_string();
13475
13476 cx.spawn_in(window, |_, mut cx| async move {
13477 workspace.update_in(&mut cx, |workspace, window, cx| {
13478 Self::open_locations_in_multibuffer(
13479 workspace,
13480 locations,
13481 format!("Selections for '{title}'"),
13482 false,
13483 MultibufferSelectionMode::All,
13484 window,
13485 cx,
13486 );
13487 })
13488 })
13489 .detach();
13490 }
13491
13492 /// Adds a row highlight for the given range. If a row has multiple highlights, the
13493 /// last highlight added will be used.
13494 ///
13495 /// If the range ends at the beginning of a line, then that line will not be highlighted.
13496 pub fn highlight_rows<T: 'static>(
13497 &mut self,
13498 range: Range<Anchor>,
13499 color: Hsla,
13500 should_autoscroll: bool,
13501 cx: &mut Context<Self>,
13502 ) {
13503 let snapshot = self.buffer().read(cx).snapshot(cx);
13504 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
13505 let ix = row_highlights.binary_search_by(|highlight| {
13506 Ordering::Equal
13507 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
13508 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
13509 });
13510
13511 if let Err(mut ix) = ix {
13512 let index = post_inc(&mut self.highlight_order);
13513
13514 // If this range intersects with the preceding highlight, then merge it with
13515 // the preceding highlight. Otherwise insert a new highlight.
13516 let mut merged = false;
13517 if ix > 0 {
13518 let prev_highlight = &mut row_highlights[ix - 1];
13519 if prev_highlight
13520 .range
13521 .end
13522 .cmp(&range.start, &snapshot)
13523 .is_ge()
13524 {
13525 ix -= 1;
13526 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
13527 prev_highlight.range.end = range.end;
13528 }
13529 merged = true;
13530 prev_highlight.index = index;
13531 prev_highlight.color = color;
13532 prev_highlight.should_autoscroll = should_autoscroll;
13533 }
13534 }
13535
13536 if !merged {
13537 row_highlights.insert(
13538 ix,
13539 RowHighlight {
13540 range: range.clone(),
13541 index,
13542 color,
13543 should_autoscroll,
13544 },
13545 );
13546 }
13547
13548 // If any of the following highlights intersect with this one, merge them.
13549 while let Some(next_highlight) = row_highlights.get(ix + 1) {
13550 let highlight = &row_highlights[ix];
13551 if next_highlight
13552 .range
13553 .start
13554 .cmp(&highlight.range.end, &snapshot)
13555 .is_le()
13556 {
13557 if next_highlight
13558 .range
13559 .end
13560 .cmp(&highlight.range.end, &snapshot)
13561 .is_gt()
13562 {
13563 row_highlights[ix].range.end = next_highlight.range.end;
13564 }
13565 row_highlights.remove(ix + 1);
13566 } else {
13567 break;
13568 }
13569 }
13570 }
13571 }
13572
13573 /// Remove any highlighted row ranges of the given type that intersect the
13574 /// given ranges.
13575 pub fn remove_highlighted_rows<T: 'static>(
13576 &mut self,
13577 ranges_to_remove: Vec<Range<Anchor>>,
13578 cx: &mut Context<Self>,
13579 ) {
13580 let snapshot = self.buffer().read(cx).snapshot(cx);
13581 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
13582 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
13583 row_highlights.retain(|highlight| {
13584 while let Some(range_to_remove) = ranges_to_remove.peek() {
13585 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
13586 Ordering::Less | Ordering::Equal => {
13587 ranges_to_remove.next();
13588 }
13589 Ordering::Greater => {
13590 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
13591 Ordering::Less | Ordering::Equal => {
13592 return false;
13593 }
13594 Ordering::Greater => break,
13595 }
13596 }
13597 }
13598 }
13599
13600 true
13601 })
13602 }
13603
13604 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
13605 pub fn clear_row_highlights<T: 'static>(&mut self) {
13606 self.highlighted_rows.remove(&TypeId::of::<T>());
13607 }
13608
13609 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
13610 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
13611 self.highlighted_rows
13612 .get(&TypeId::of::<T>())
13613 .map_or(&[] as &[_], |vec| vec.as_slice())
13614 .iter()
13615 .map(|highlight| (highlight.range.clone(), highlight.color))
13616 }
13617
13618 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
13619 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
13620 /// Allows to ignore certain kinds of highlights.
13621 pub fn highlighted_display_rows(
13622 &self,
13623 window: &mut Window,
13624 cx: &mut App,
13625 ) -> BTreeMap<DisplayRow, Background> {
13626 let snapshot = self.snapshot(window, cx);
13627 let mut used_highlight_orders = HashMap::default();
13628 self.highlighted_rows
13629 .iter()
13630 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
13631 .fold(
13632 BTreeMap::<DisplayRow, Background>::new(),
13633 |mut unique_rows, highlight| {
13634 let start = highlight.range.start.to_display_point(&snapshot);
13635 let end = highlight.range.end.to_display_point(&snapshot);
13636 let start_row = start.row().0;
13637 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
13638 && end.column() == 0
13639 {
13640 end.row().0.saturating_sub(1)
13641 } else {
13642 end.row().0
13643 };
13644 for row in start_row..=end_row {
13645 let used_index =
13646 used_highlight_orders.entry(row).or_insert(highlight.index);
13647 if highlight.index >= *used_index {
13648 *used_index = highlight.index;
13649 unique_rows.insert(DisplayRow(row), highlight.color.into());
13650 }
13651 }
13652 unique_rows
13653 },
13654 )
13655 }
13656
13657 pub fn highlighted_display_row_for_autoscroll(
13658 &self,
13659 snapshot: &DisplaySnapshot,
13660 ) -> Option<DisplayRow> {
13661 self.highlighted_rows
13662 .values()
13663 .flat_map(|highlighted_rows| highlighted_rows.iter())
13664 .filter_map(|highlight| {
13665 if highlight.should_autoscroll {
13666 Some(highlight.range.start.to_display_point(snapshot).row())
13667 } else {
13668 None
13669 }
13670 })
13671 .min()
13672 }
13673
13674 pub fn set_search_within_ranges(&mut self, ranges: &[Range<Anchor>], cx: &mut Context<Self>) {
13675 self.highlight_background::<SearchWithinRange>(
13676 ranges,
13677 |colors| colors.editor_document_highlight_read_background,
13678 cx,
13679 )
13680 }
13681
13682 pub fn set_breadcrumb_header(&mut self, new_header: String) {
13683 self.breadcrumb_header = Some(new_header);
13684 }
13685
13686 pub fn clear_search_within_ranges(&mut self, cx: &mut Context<Self>) {
13687 self.clear_background_highlights::<SearchWithinRange>(cx);
13688 }
13689
13690 pub fn highlight_background<T: 'static>(
13691 &mut self,
13692 ranges: &[Range<Anchor>],
13693 color_fetcher: fn(&ThemeColors) -> Hsla,
13694 cx: &mut Context<Self>,
13695 ) {
13696 self.background_highlights
13697 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
13698 self.scrollbar_marker_state.dirty = true;
13699 cx.notify();
13700 }
13701
13702 pub fn clear_background_highlights<T: 'static>(
13703 &mut self,
13704 cx: &mut Context<Self>,
13705 ) -> Option<BackgroundHighlight> {
13706 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
13707 if !text_highlights.1.is_empty() {
13708 self.scrollbar_marker_state.dirty = true;
13709 cx.notify();
13710 }
13711 Some(text_highlights)
13712 }
13713
13714 pub fn highlight_gutter<T: 'static>(
13715 &mut self,
13716 ranges: &[Range<Anchor>],
13717 color_fetcher: fn(&App) -> Hsla,
13718 cx: &mut Context<Self>,
13719 ) {
13720 self.gutter_highlights
13721 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
13722 cx.notify();
13723 }
13724
13725 pub fn clear_gutter_highlights<T: 'static>(
13726 &mut self,
13727 cx: &mut Context<Self>,
13728 ) -> Option<GutterHighlight> {
13729 cx.notify();
13730 self.gutter_highlights.remove(&TypeId::of::<T>())
13731 }
13732
13733 #[cfg(feature = "test-support")]
13734 pub fn all_text_background_highlights(
13735 &self,
13736 window: &mut Window,
13737 cx: &mut Context<Self>,
13738 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13739 let snapshot = self.snapshot(window, cx);
13740 let buffer = &snapshot.buffer_snapshot;
13741 let start = buffer.anchor_before(0);
13742 let end = buffer.anchor_after(buffer.len());
13743 let theme = cx.theme().colors();
13744 self.background_highlights_in_range(start..end, &snapshot, theme)
13745 }
13746
13747 #[cfg(feature = "test-support")]
13748 pub fn search_background_highlights(&mut self, cx: &mut Context<Self>) -> Vec<Range<Point>> {
13749 let snapshot = self.buffer().read(cx).snapshot(cx);
13750
13751 let highlights = self
13752 .background_highlights
13753 .get(&TypeId::of::<items::BufferSearchHighlights>());
13754
13755 if let Some((_color, ranges)) = highlights {
13756 ranges
13757 .iter()
13758 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
13759 .collect_vec()
13760 } else {
13761 vec![]
13762 }
13763 }
13764
13765 fn document_highlights_for_position<'a>(
13766 &'a self,
13767 position: Anchor,
13768 buffer: &'a MultiBufferSnapshot,
13769 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
13770 let read_highlights = self
13771 .background_highlights
13772 .get(&TypeId::of::<DocumentHighlightRead>())
13773 .map(|h| &h.1);
13774 let write_highlights = self
13775 .background_highlights
13776 .get(&TypeId::of::<DocumentHighlightWrite>())
13777 .map(|h| &h.1);
13778 let left_position = position.bias_left(buffer);
13779 let right_position = position.bias_right(buffer);
13780 read_highlights
13781 .into_iter()
13782 .chain(write_highlights)
13783 .flat_map(move |ranges| {
13784 let start_ix = match ranges.binary_search_by(|probe| {
13785 let cmp = probe.end.cmp(&left_position, buffer);
13786 if cmp.is_ge() {
13787 Ordering::Greater
13788 } else {
13789 Ordering::Less
13790 }
13791 }) {
13792 Ok(i) | Err(i) => i,
13793 };
13794
13795 ranges[start_ix..]
13796 .iter()
13797 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
13798 })
13799 }
13800
13801 pub fn has_background_highlights<T: 'static>(&self) -> bool {
13802 self.background_highlights
13803 .get(&TypeId::of::<T>())
13804 .map_or(false, |(_, highlights)| !highlights.is_empty())
13805 }
13806
13807 pub fn background_highlights_in_range(
13808 &self,
13809 search_range: Range<Anchor>,
13810 display_snapshot: &DisplaySnapshot,
13811 theme: &ThemeColors,
13812 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13813 let mut results = Vec::new();
13814 for (color_fetcher, ranges) in self.background_highlights.values() {
13815 let color = color_fetcher(theme);
13816 let start_ix = match ranges.binary_search_by(|probe| {
13817 let cmp = probe
13818 .end
13819 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13820 if cmp.is_gt() {
13821 Ordering::Greater
13822 } else {
13823 Ordering::Less
13824 }
13825 }) {
13826 Ok(i) | Err(i) => i,
13827 };
13828 for range in &ranges[start_ix..] {
13829 if range
13830 .start
13831 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13832 .is_ge()
13833 {
13834 break;
13835 }
13836
13837 let start = range.start.to_display_point(display_snapshot);
13838 let end = range.end.to_display_point(display_snapshot);
13839 results.push((start..end, color))
13840 }
13841 }
13842 results
13843 }
13844
13845 pub fn background_highlight_row_ranges<T: 'static>(
13846 &self,
13847 search_range: Range<Anchor>,
13848 display_snapshot: &DisplaySnapshot,
13849 count: usize,
13850 ) -> Vec<RangeInclusive<DisplayPoint>> {
13851 let mut results = Vec::new();
13852 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
13853 return vec![];
13854 };
13855
13856 let start_ix = match ranges.binary_search_by(|probe| {
13857 let cmp = probe
13858 .end
13859 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13860 if cmp.is_gt() {
13861 Ordering::Greater
13862 } else {
13863 Ordering::Less
13864 }
13865 }) {
13866 Ok(i) | Err(i) => i,
13867 };
13868 let mut push_region = |start: Option<Point>, end: Option<Point>| {
13869 if let (Some(start_display), Some(end_display)) = (start, end) {
13870 results.push(
13871 start_display.to_display_point(display_snapshot)
13872 ..=end_display.to_display_point(display_snapshot),
13873 );
13874 }
13875 };
13876 let mut start_row: Option<Point> = None;
13877 let mut end_row: Option<Point> = None;
13878 if ranges.len() > count {
13879 return Vec::new();
13880 }
13881 for range in &ranges[start_ix..] {
13882 if range
13883 .start
13884 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13885 .is_ge()
13886 {
13887 break;
13888 }
13889 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
13890 if let Some(current_row) = &end_row {
13891 if end.row == current_row.row {
13892 continue;
13893 }
13894 }
13895 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
13896 if start_row.is_none() {
13897 assert_eq!(end_row, None);
13898 start_row = Some(start);
13899 end_row = Some(end);
13900 continue;
13901 }
13902 if let Some(current_end) = end_row.as_mut() {
13903 if start.row > current_end.row + 1 {
13904 push_region(start_row, end_row);
13905 start_row = Some(start);
13906 end_row = Some(end);
13907 } else {
13908 // Merge two hunks.
13909 *current_end = end;
13910 }
13911 } else {
13912 unreachable!();
13913 }
13914 }
13915 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
13916 push_region(start_row, end_row);
13917 results
13918 }
13919
13920 pub fn gutter_highlights_in_range(
13921 &self,
13922 search_range: Range<Anchor>,
13923 display_snapshot: &DisplaySnapshot,
13924 cx: &App,
13925 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13926 let mut results = Vec::new();
13927 for (color_fetcher, ranges) in self.gutter_highlights.values() {
13928 let color = color_fetcher(cx);
13929 let start_ix = match ranges.binary_search_by(|probe| {
13930 let cmp = probe
13931 .end
13932 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13933 if cmp.is_gt() {
13934 Ordering::Greater
13935 } else {
13936 Ordering::Less
13937 }
13938 }) {
13939 Ok(i) | Err(i) => i,
13940 };
13941 for range in &ranges[start_ix..] {
13942 if range
13943 .start
13944 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13945 .is_ge()
13946 {
13947 break;
13948 }
13949
13950 let start = range.start.to_display_point(display_snapshot);
13951 let end = range.end.to_display_point(display_snapshot);
13952 results.push((start..end, color))
13953 }
13954 }
13955 results
13956 }
13957
13958 /// Get the text ranges corresponding to the redaction query
13959 pub fn redacted_ranges(
13960 &self,
13961 search_range: Range<Anchor>,
13962 display_snapshot: &DisplaySnapshot,
13963 cx: &App,
13964 ) -> Vec<Range<DisplayPoint>> {
13965 display_snapshot
13966 .buffer_snapshot
13967 .redacted_ranges(search_range, |file| {
13968 if let Some(file) = file {
13969 file.is_private()
13970 && EditorSettings::get(
13971 Some(SettingsLocation {
13972 worktree_id: file.worktree_id(cx),
13973 path: file.path().as_ref(),
13974 }),
13975 cx,
13976 )
13977 .redact_private_values
13978 } else {
13979 false
13980 }
13981 })
13982 .map(|range| {
13983 range.start.to_display_point(display_snapshot)
13984 ..range.end.to_display_point(display_snapshot)
13985 })
13986 .collect()
13987 }
13988
13989 pub fn highlight_text<T: 'static>(
13990 &mut self,
13991 ranges: Vec<Range<Anchor>>,
13992 style: HighlightStyle,
13993 cx: &mut Context<Self>,
13994 ) {
13995 self.display_map.update(cx, |map, _| {
13996 map.highlight_text(TypeId::of::<T>(), ranges, style)
13997 });
13998 cx.notify();
13999 }
14000
14001 pub(crate) fn highlight_inlays<T: 'static>(
14002 &mut self,
14003 highlights: Vec<InlayHighlight>,
14004 style: HighlightStyle,
14005 cx: &mut Context<Self>,
14006 ) {
14007 self.display_map.update(cx, |map, _| {
14008 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
14009 });
14010 cx.notify();
14011 }
14012
14013 pub fn text_highlights<'a, T: 'static>(
14014 &'a self,
14015 cx: &'a App,
14016 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
14017 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
14018 }
14019
14020 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut Context<Self>) {
14021 let cleared = self
14022 .display_map
14023 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
14024 if cleared {
14025 cx.notify();
14026 }
14027 }
14028
14029 pub fn show_local_cursors(&self, window: &mut Window, cx: &mut App) -> bool {
14030 (self.read_only(cx) || self.blink_manager.read(cx).visible())
14031 && self.focus_handle.is_focused(window)
14032 }
14033
14034 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut Context<Self>) {
14035 self.show_cursor_when_unfocused = is_enabled;
14036 cx.notify();
14037 }
14038
14039 pub fn lsp_store(&self, cx: &App) -> Option<Entity<LspStore>> {
14040 self.project
14041 .as_ref()
14042 .map(|project| project.read(cx).lsp_store())
14043 }
14044
14045 fn on_buffer_changed(&mut self, _: Entity<MultiBuffer>, cx: &mut Context<Self>) {
14046 cx.notify();
14047 }
14048
14049 fn on_buffer_event(
14050 &mut self,
14051 multibuffer: &Entity<MultiBuffer>,
14052 event: &multi_buffer::Event,
14053 window: &mut Window,
14054 cx: &mut Context<Self>,
14055 ) {
14056 match event {
14057 multi_buffer::Event::Edited {
14058 singleton_buffer_edited,
14059 edited_buffer: buffer_edited,
14060 } => {
14061 self.scrollbar_marker_state.dirty = true;
14062 self.active_indent_guides_state.dirty = true;
14063 self.refresh_active_diagnostics(cx);
14064 self.refresh_code_actions(window, cx);
14065 if self.has_active_inline_completion() {
14066 self.update_visible_inline_completion(window, cx);
14067 }
14068 if let Some(buffer) = buffer_edited {
14069 let buffer_id = buffer.read(cx).remote_id();
14070 if !self.registered_buffers.contains_key(&buffer_id) {
14071 if let Some(lsp_store) = self.lsp_store(cx) {
14072 lsp_store.update(cx, |lsp_store, cx| {
14073 self.registered_buffers.insert(
14074 buffer_id,
14075 lsp_store.register_buffer_with_language_servers(&buffer, cx),
14076 );
14077 })
14078 }
14079 }
14080 }
14081 cx.emit(EditorEvent::BufferEdited);
14082 cx.emit(SearchEvent::MatchesInvalidated);
14083 if *singleton_buffer_edited {
14084 if let Some(project) = &self.project {
14085 let project = project.read(cx);
14086 #[allow(clippy::mutable_key_type)]
14087 let languages_affected = multibuffer
14088 .read(cx)
14089 .all_buffers()
14090 .into_iter()
14091 .filter_map(|buffer| {
14092 let buffer = buffer.read(cx);
14093 let language = buffer.language()?;
14094 if project.is_local()
14095 && project
14096 .language_servers_for_local_buffer(buffer, cx)
14097 .count()
14098 == 0
14099 {
14100 None
14101 } else {
14102 Some(language)
14103 }
14104 })
14105 .cloned()
14106 .collect::<HashSet<_>>();
14107 if !languages_affected.is_empty() {
14108 self.refresh_inlay_hints(
14109 InlayHintRefreshReason::BufferEdited(languages_affected),
14110 cx,
14111 );
14112 }
14113 }
14114 }
14115
14116 let Some(project) = &self.project else { return };
14117 let (telemetry, is_via_ssh) = {
14118 let project = project.read(cx);
14119 let telemetry = project.client().telemetry().clone();
14120 let is_via_ssh = project.is_via_ssh();
14121 (telemetry, is_via_ssh)
14122 };
14123 refresh_linked_ranges(self, window, cx);
14124 telemetry.log_edit_event("editor", is_via_ssh);
14125 }
14126 multi_buffer::Event::ExcerptsAdded {
14127 buffer,
14128 predecessor,
14129 excerpts,
14130 } => {
14131 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14132 let buffer_id = buffer.read(cx).remote_id();
14133 if self.buffer.read(cx).diff_for(buffer_id).is_none() {
14134 if let Some(project) = &self.project {
14135 get_uncommitted_diff_for_buffer(
14136 project,
14137 [buffer.clone()],
14138 self.buffer.clone(),
14139 cx,
14140 );
14141 }
14142 }
14143 cx.emit(EditorEvent::ExcerptsAdded {
14144 buffer: buffer.clone(),
14145 predecessor: *predecessor,
14146 excerpts: excerpts.clone(),
14147 });
14148 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
14149 }
14150 multi_buffer::Event::ExcerptsRemoved { ids } => {
14151 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
14152 let buffer = self.buffer.read(cx);
14153 self.registered_buffers
14154 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
14155 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
14156 }
14157 multi_buffer::Event::ExcerptsEdited { ids } => {
14158 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
14159 }
14160 multi_buffer::Event::ExcerptsExpanded { ids } => {
14161 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
14162 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
14163 }
14164 multi_buffer::Event::Reparsed(buffer_id) => {
14165 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14166
14167 cx.emit(EditorEvent::Reparsed(*buffer_id));
14168 }
14169 multi_buffer::Event::DiffHunksToggled => {
14170 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14171 }
14172 multi_buffer::Event::LanguageChanged(buffer_id) => {
14173 linked_editing_ranges::refresh_linked_ranges(self, window, cx);
14174 cx.emit(EditorEvent::Reparsed(*buffer_id));
14175 cx.notify();
14176 }
14177 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
14178 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
14179 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
14180 cx.emit(EditorEvent::TitleChanged)
14181 }
14182 // multi_buffer::Event::DiffBaseChanged => {
14183 // self.scrollbar_marker_state.dirty = true;
14184 // cx.emit(EditorEvent::DiffBaseChanged);
14185 // cx.notify();
14186 // }
14187 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
14188 multi_buffer::Event::DiagnosticsUpdated => {
14189 self.refresh_active_diagnostics(cx);
14190 self.scrollbar_marker_state.dirty = true;
14191 cx.notify();
14192 }
14193 _ => {}
14194 };
14195 }
14196
14197 fn on_display_map_changed(
14198 &mut self,
14199 _: Entity<DisplayMap>,
14200 _: &mut Window,
14201 cx: &mut Context<Self>,
14202 ) {
14203 cx.notify();
14204 }
14205
14206 fn settings_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14207 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14208 self.refresh_inline_completion(true, false, window, cx);
14209 self.refresh_inlay_hints(
14210 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
14211 self.selections.newest_anchor().head(),
14212 &self.buffer.read(cx).snapshot(cx),
14213 cx,
14214 )),
14215 cx,
14216 );
14217
14218 let old_cursor_shape = self.cursor_shape;
14219
14220 {
14221 let editor_settings = EditorSettings::get_global(cx);
14222 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
14223 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
14224 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
14225 }
14226
14227 if old_cursor_shape != self.cursor_shape {
14228 cx.emit(EditorEvent::CursorShapeChanged);
14229 }
14230
14231 let project_settings = ProjectSettings::get_global(cx);
14232 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
14233
14234 if self.mode == EditorMode::Full {
14235 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
14236 if self.git_blame_inline_enabled != inline_blame_enabled {
14237 self.toggle_git_blame_inline_internal(false, window, cx);
14238 }
14239 }
14240
14241 cx.notify();
14242 }
14243
14244 pub fn set_searchable(&mut self, searchable: bool) {
14245 self.searchable = searchable;
14246 }
14247
14248 pub fn searchable(&self) -> bool {
14249 self.searchable
14250 }
14251
14252 fn open_proposed_changes_editor(
14253 &mut self,
14254 _: &OpenProposedChangesEditor,
14255 window: &mut Window,
14256 cx: &mut Context<Self>,
14257 ) {
14258 let Some(workspace) = self.workspace() else {
14259 cx.propagate();
14260 return;
14261 };
14262
14263 let selections = self.selections.all::<usize>(cx);
14264 let multi_buffer = self.buffer.read(cx);
14265 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
14266 let mut new_selections_by_buffer = HashMap::default();
14267 for selection in selections {
14268 for (buffer, range, _) in
14269 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
14270 {
14271 let mut range = range.to_point(buffer);
14272 range.start.column = 0;
14273 range.end.column = buffer.line_len(range.end.row);
14274 new_selections_by_buffer
14275 .entry(multi_buffer.buffer(buffer.remote_id()).unwrap())
14276 .or_insert(Vec::new())
14277 .push(range)
14278 }
14279 }
14280
14281 let proposed_changes_buffers = new_selections_by_buffer
14282 .into_iter()
14283 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
14284 .collect::<Vec<_>>();
14285 let proposed_changes_editor = cx.new(|cx| {
14286 ProposedChangesEditor::new(
14287 "Proposed changes",
14288 proposed_changes_buffers,
14289 self.project.clone(),
14290 window,
14291 cx,
14292 )
14293 });
14294
14295 window.defer(cx, move |window, cx| {
14296 workspace.update(cx, |workspace, cx| {
14297 workspace.active_pane().update(cx, |pane, cx| {
14298 pane.add_item(
14299 Box::new(proposed_changes_editor),
14300 true,
14301 true,
14302 None,
14303 window,
14304 cx,
14305 );
14306 });
14307 });
14308 });
14309 }
14310
14311 pub fn open_excerpts_in_split(
14312 &mut self,
14313 _: &OpenExcerptsSplit,
14314 window: &mut Window,
14315 cx: &mut Context<Self>,
14316 ) {
14317 self.open_excerpts_common(None, true, window, cx)
14318 }
14319
14320 pub fn open_excerpts(&mut self, _: &OpenExcerpts, window: &mut Window, cx: &mut Context<Self>) {
14321 self.open_excerpts_common(None, false, window, cx)
14322 }
14323
14324 fn open_excerpts_common(
14325 &mut self,
14326 jump_data: Option<JumpData>,
14327 split: bool,
14328 window: &mut Window,
14329 cx: &mut Context<Self>,
14330 ) {
14331 let Some(workspace) = self.workspace() else {
14332 cx.propagate();
14333 return;
14334 };
14335
14336 if self.buffer.read(cx).is_singleton() {
14337 cx.propagate();
14338 return;
14339 }
14340
14341 let mut new_selections_by_buffer = HashMap::default();
14342 match &jump_data {
14343 Some(JumpData::MultiBufferPoint {
14344 excerpt_id,
14345 position,
14346 anchor,
14347 line_offset_from_top,
14348 }) => {
14349 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
14350 if let Some(buffer) = multi_buffer_snapshot
14351 .buffer_id_for_excerpt(*excerpt_id)
14352 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
14353 {
14354 let buffer_snapshot = buffer.read(cx).snapshot();
14355 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
14356 language::ToPoint::to_point(anchor, &buffer_snapshot)
14357 } else {
14358 buffer_snapshot.clip_point(*position, Bias::Left)
14359 };
14360 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
14361 new_selections_by_buffer.insert(
14362 buffer,
14363 (
14364 vec![jump_to_offset..jump_to_offset],
14365 Some(*line_offset_from_top),
14366 ),
14367 );
14368 }
14369 }
14370 Some(JumpData::MultiBufferRow {
14371 row,
14372 line_offset_from_top,
14373 }) => {
14374 let point = MultiBufferPoint::new(row.0, 0);
14375 if let Some((buffer, buffer_point, _)) =
14376 self.buffer.read(cx).point_to_buffer_point(point, cx)
14377 {
14378 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
14379 new_selections_by_buffer
14380 .entry(buffer)
14381 .or_insert((Vec::new(), Some(*line_offset_from_top)))
14382 .0
14383 .push(buffer_offset..buffer_offset)
14384 }
14385 }
14386 None => {
14387 let selections = self.selections.all::<usize>(cx);
14388 let multi_buffer = self.buffer.read(cx);
14389 for selection in selections {
14390 for (buffer, mut range, _) in multi_buffer
14391 .snapshot(cx)
14392 .range_to_buffer_ranges(selection.range())
14393 {
14394 // When editing branch buffers, jump to the corresponding location
14395 // in their base buffer.
14396 let mut buffer_handle = multi_buffer.buffer(buffer.remote_id()).unwrap();
14397 let buffer = buffer_handle.read(cx);
14398 if let Some(base_buffer) = buffer.base_buffer() {
14399 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
14400 buffer_handle = base_buffer;
14401 }
14402
14403 if selection.reversed {
14404 mem::swap(&mut range.start, &mut range.end);
14405 }
14406 new_selections_by_buffer
14407 .entry(buffer_handle)
14408 .or_insert((Vec::new(), None))
14409 .0
14410 .push(range)
14411 }
14412 }
14413 }
14414 }
14415
14416 if new_selections_by_buffer.is_empty() {
14417 return;
14418 }
14419
14420 // We defer the pane interaction because we ourselves are a workspace item
14421 // and activating a new item causes the pane to call a method on us reentrantly,
14422 // which panics if we're on the stack.
14423 window.defer(cx, move |window, cx| {
14424 workspace.update(cx, |workspace, cx| {
14425 let pane = if split {
14426 workspace.adjacent_pane(window, cx)
14427 } else {
14428 workspace.active_pane().clone()
14429 };
14430
14431 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
14432 let editor = buffer
14433 .read(cx)
14434 .file()
14435 .is_none()
14436 .then(|| {
14437 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
14438 // so `workspace.open_project_item` will never find them, always opening a new editor.
14439 // Instead, we try to activate the existing editor in the pane first.
14440 let (editor, pane_item_index) =
14441 pane.read(cx).items().enumerate().find_map(|(i, item)| {
14442 let editor = item.downcast::<Editor>()?;
14443 let singleton_buffer =
14444 editor.read(cx).buffer().read(cx).as_singleton()?;
14445 if singleton_buffer == buffer {
14446 Some((editor, i))
14447 } else {
14448 None
14449 }
14450 })?;
14451 pane.update(cx, |pane, cx| {
14452 pane.activate_item(pane_item_index, true, true, window, cx)
14453 });
14454 Some(editor)
14455 })
14456 .flatten()
14457 .unwrap_or_else(|| {
14458 workspace.open_project_item::<Self>(
14459 pane.clone(),
14460 buffer,
14461 true,
14462 true,
14463 window,
14464 cx,
14465 )
14466 });
14467
14468 editor.update(cx, |editor, cx| {
14469 let autoscroll = match scroll_offset {
14470 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
14471 None => Autoscroll::newest(),
14472 };
14473 let nav_history = editor.nav_history.take();
14474 editor.change_selections(Some(autoscroll), window, cx, |s| {
14475 s.select_ranges(ranges);
14476 });
14477 editor.nav_history = nav_history;
14478 });
14479 }
14480 })
14481 });
14482 }
14483
14484 fn marked_text_ranges(&self, cx: &App) -> Option<Vec<Range<OffsetUtf16>>> {
14485 let snapshot = self.buffer.read(cx).read(cx);
14486 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
14487 Some(
14488 ranges
14489 .iter()
14490 .map(move |range| {
14491 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
14492 })
14493 .collect(),
14494 )
14495 }
14496
14497 fn selection_replacement_ranges(
14498 &self,
14499 range: Range<OffsetUtf16>,
14500 cx: &mut App,
14501 ) -> Vec<Range<OffsetUtf16>> {
14502 let selections = self.selections.all::<OffsetUtf16>(cx);
14503 let newest_selection = selections
14504 .iter()
14505 .max_by_key(|selection| selection.id)
14506 .unwrap();
14507 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
14508 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
14509 let snapshot = self.buffer.read(cx).read(cx);
14510 selections
14511 .into_iter()
14512 .map(|mut selection| {
14513 selection.start.0 =
14514 (selection.start.0 as isize).saturating_add(start_delta) as usize;
14515 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
14516 snapshot.clip_offset_utf16(selection.start, Bias::Left)
14517 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
14518 })
14519 .collect()
14520 }
14521
14522 fn report_editor_event(
14523 &self,
14524 event_type: &'static str,
14525 file_extension: Option<String>,
14526 cx: &App,
14527 ) {
14528 if cfg!(any(test, feature = "test-support")) {
14529 return;
14530 }
14531
14532 let Some(project) = &self.project else { return };
14533
14534 // If None, we are in a file without an extension
14535 let file = self
14536 .buffer
14537 .read(cx)
14538 .as_singleton()
14539 .and_then(|b| b.read(cx).file());
14540 let file_extension = file_extension.or(file
14541 .as_ref()
14542 .and_then(|file| Path::new(file.file_name(cx)).extension())
14543 .and_then(|e| e.to_str())
14544 .map(|a| a.to_string()));
14545
14546 let vim_mode = cx
14547 .global::<SettingsStore>()
14548 .raw_user_settings()
14549 .get("vim_mode")
14550 == Some(&serde_json::Value::Bool(true));
14551
14552 let edit_predictions_provider = all_language_settings(file, cx).edit_predictions.provider;
14553 let copilot_enabled = edit_predictions_provider
14554 == language::language_settings::EditPredictionProvider::Copilot;
14555 let copilot_enabled_for_language = self
14556 .buffer
14557 .read(cx)
14558 .settings_at(0, cx)
14559 .show_edit_predictions;
14560
14561 let project = project.read(cx);
14562 telemetry::event!(
14563 event_type,
14564 file_extension,
14565 vim_mode,
14566 copilot_enabled,
14567 copilot_enabled_for_language,
14568 edit_predictions_provider,
14569 is_via_ssh = project.is_via_ssh(),
14570 );
14571 }
14572
14573 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
14574 /// with each line being an array of {text, highlight} objects.
14575 fn copy_highlight_json(
14576 &mut self,
14577 _: &CopyHighlightJson,
14578 window: &mut Window,
14579 cx: &mut Context<Self>,
14580 ) {
14581 #[derive(Serialize)]
14582 struct Chunk<'a> {
14583 text: String,
14584 highlight: Option<&'a str>,
14585 }
14586
14587 let snapshot = self.buffer.read(cx).snapshot(cx);
14588 let range = self
14589 .selected_text_range(false, window, cx)
14590 .and_then(|selection| {
14591 if selection.range.is_empty() {
14592 None
14593 } else {
14594 Some(selection.range)
14595 }
14596 })
14597 .unwrap_or_else(|| 0..snapshot.len());
14598
14599 let chunks = snapshot.chunks(range, true);
14600 let mut lines = Vec::new();
14601 let mut line: VecDeque<Chunk> = VecDeque::new();
14602
14603 let Some(style) = self.style.as_ref() else {
14604 return;
14605 };
14606
14607 for chunk in chunks {
14608 let highlight = chunk
14609 .syntax_highlight_id
14610 .and_then(|id| id.name(&style.syntax));
14611 let mut chunk_lines = chunk.text.split('\n').peekable();
14612 while let Some(text) = chunk_lines.next() {
14613 let mut merged_with_last_token = false;
14614 if let Some(last_token) = line.back_mut() {
14615 if last_token.highlight == highlight {
14616 last_token.text.push_str(text);
14617 merged_with_last_token = true;
14618 }
14619 }
14620
14621 if !merged_with_last_token {
14622 line.push_back(Chunk {
14623 text: text.into(),
14624 highlight,
14625 });
14626 }
14627
14628 if chunk_lines.peek().is_some() {
14629 if line.len() > 1 && line.front().unwrap().text.is_empty() {
14630 line.pop_front();
14631 }
14632 if line.len() > 1 && line.back().unwrap().text.is_empty() {
14633 line.pop_back();
14634 }
14635
14636 lines.push(mem::take(&mut line));
14637 }
14638 }
14639 }
14640
14641 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
14642 return;
14643 };
14644 cx.write_to_clipboard(ClipboardItem::new_string(lines));
14645 }
14646
14647 pub fn open_context_menu(
14648 &mut self,
14649 _: &OpenContextMenu,
14650 window: &mut Window,
14651 cx: &mut Context<Self>,
14652 ) {
14653 self.request_autoscroll(Autoscroll::newest(), cx);
14654 let position = self.selections.newest_display(cx).start;
14655 mouse_context_menu::deploy_context_menu(self, None, position, window, cx);
14656 }
14657
14658 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
14659 &self.inlay_hint_cache
14660 }
14661
14662 pub fn replay_insert_event(
14663 &mut self,
14664 text: &str,
14665 relative_utf16_range: Option<Range<isize>>,
14666 window: &mut Window,
14667 cx: &mut Context<Self>,
14668 ) {
14669 if !self.input_enabled {
14670 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14671 return;
14672 }
14673 if let Some(relative_utf16_range) = relative_utf16_range {
14674 let selections = self.selections.all::<OffsetUtf16>(cx);
14675 self.change_selections(None, window, cx, |s| {
14676 let new_ranges = selections.into_iter().map(|range| {
14677 let start = OffsetUtf16(
14678 range
14679 .head()
14680 .0
14681 .saturating_add_signed(relative_utf16_range.start),
14682 );
14683 let end = OffsetUtf16(
14684 range
14685 .head()
14686 .0
14687 .saturating_add_signed(relative_utf16_range.end),
14688 );
14689 start..end
14690 });
14691 s.select_ranges(new_ranges);
14692 });
14693 }
14694
14695 self.handle_input(text, window, cx);
14696 }
14697
14698 pub fn supports_inlay_hints(&self, cx: &App) -> bool {
14699 let Some(provider) = self.semantics_provider.as_ref() else {
14700 return false;
14701 };
14702
14703 let mut supports = false;
14704 self.buffer().read(cx).for_each_buffer(|buffer| {
14705 supports |= provider.supports_inlay_hints(buffer, cx);
14706 });
14707 supports
14708 }
14709
14710 pub fn is_focused(&self, window: &Window) -> bool {
14711 self.focus_handle.is_focused(window)
14712 }
14713
14714 fn handle_focus(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14715 cx.emit(EditorEvent::Focused);
14716
14717 if let Some(descendant) = self
14718 .last_focused_descendant
14719 .take()
14720 .and_then(|descendant| descendant.upgrade())
14721 {
14722 window.focus(&descendant);
14723 } else {
14724 if let Some(blame) = self.blame.as_ref() {
14725 blame.update(cx, GitBlame::focus)
14726 }
14727
14728 self.blink_manager.update(cx, BlinkManager::enable);
14729 self.show_cursor_names(window, cx);
14730 self.buffer.update(cx, |buffer, cx| {
14731 buffer.finalize_last_transaction(cx);
14732 if self.leader_peer_id.is_none() {
14733 buffer.set_active_selections(
14734 &self.selections.disjoint_anchors(),
14735 self.selections.line_mode,
14736 self.cursor_shape,
14737 cx,
14738 );
14739 }
14740 });
14741 }
14742 }
14743
14744 fn handle_focus_in(&mut self, _: &mut Window, cx: &mut Context<Self>) {
14745 cx.emit(EditorEvent::FocusedIn)
14746 }
14747
14748 fn handle_focus_out(
14749 &mut self,
14750 event: FocusOutEvent,
14751 _window: &mut Window,
14752 _cx: &mut Context<Self>,
14753 ) {
14754 if event.blurred != self.focus_handle {
14755 self.last_focused_descendant = Some(event.blurred);
14756 }
14757 }
14758
14759 pub fn handle_blur(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14760 self.blink_manager.update(cx, BlinkManager::disable);
14761 self.buffer
14762 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
14763
14764 if let Some(blame) = self.blame.as_ref() {
14765 blame.update(cx, GitBlame::blur)
14766 }
14767 if !self.hover_state.focused(window, cx) {
14768 hide_hover(self, cx);
14769 }
14770
14771 self.hide_context_menu(window, cx);
14772 self.discard_inline_completion(false, cx);
14773 cx.emit(EditorEvent::Blurred);
14774 cx.notify();
14775 }
14776
14777 pub fn register_action<A: Action>(
14778 &mut self,
14779 listener: impl Fn(&A, &mut Window, &mut App) + 'static,
14780 ) -> Subscription {
14781 let id = self.next_editor_action_id.post_inc();
14782 let listener = Arc::new(listener);
14783 self.editor_actions.borrow_mut().insert(
14784 id,
14785 Box::new(move |window, _| {
14786 let listener = listener.clone();
14787 window.on_action(TypeId::of::<A>(), move |action, phase, window, cx| {
14788 let action = action.downcast_ref().unwrap();
14789 if phase == DispatchPhase::Bubble {
14790 listener(action, window, cx)
14791 }
14792 })
14793 }),
14794 );
14795
14796 let editor_actions = self.editor_actions.clone();
14797 Subscription::new(move || {
14798 editor_actions.borrow_mut().remove(&id);
14799 })
14800 }
14801
14802 pub fn file_header_size(&self) -> u32 {
14803 FILE_HEADER_HEIGHT
14804 }
14805
14806 pub fn revert(
14807 &mut self,
14808 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
14809 window: &mut Window,
14810 cx: &mut Context<Self>,
14811 ) {
14812 self.buffer().update(cx, |multi_buffer, cx| {
14813 for (buffer_id, changes) in revert_changes {
14814 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
14815 buffer.update(cx, |buffer, cx| {
14816 buffer.edit(
14817 changes.into_iter().map(|(range, text)| {
14818 (range, text.to_string().map(Arc::<str>::from))
14819 }),
14820 None,
14821 cx,
14822 );
14823 });
14824 }
14825 }
14826 });
14827 self.change_selections(None, window, cx, |selections| selections.refresh());
14828 }
14829
14830 pub fn to_pixel_point(
14831 &self,
14832 source: multi_buffer::Anchor,
14833 editor_snapshot: &EditorSnapshot,
14834 window: &mut Window,
14835 ) -> Option<gpui::Point<Pixels>> {
14836 let source_point = source.to_display_point(editor_snapshot);
14837 self.display_to_pixel_point(source_point, editor_snapshot, window)
14838 }
14839
14840 pub fn display_to_pixel_point(
14841 &self,
14842 source: DisplayPoint,
14843 editor_snapshot: &EditorSnapshot,
14844 window: &mut Window,
14845 ) -> Option<gpui::Point<Pixels>> {
14846 let line_height = self.style()?.text.line_height_in_pixels(window.rem_size());
14847 let text_layout_details = self.text_layout_details(window);
14848 let scroll_top = text_layout_details
14849 .scroll_anchor
14850 .scroll_position(editor_snapshot)
14851 .y;
14852
14853 if source.row().as_f32() < scroll_top.floor() {
14854 return None;
14855 }
14856 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
14857 let source_y = line_height * (source.row().as_f32() - scroll_top);
14858 Some(gpui::Point::new(source_x, source_y))
14859 }
14860
14861 pub fn has_visible_completions_menu(&self) -> bool {
14862 !self.edit_prediction_preview_is_active()
14863 && self.context_menu.borrow().as_ref().map_or(false, |menu| {
14864 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
14865 })
14866 }
14867
14868 pub fn register_addon<T: Addon>(&mut self, instance: T) {
14869 self.addons
14870 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
14871 }
14872
14873 pub fn unregister_addon<T: Addon>(&mut self) {
14874 self.addons.remove(&std::any::TypeId::of::<T>());
14875 }
14876
14877 pub fn addon<T: Addon>(&self) -> Option<&T> {
14878 let type_id = std::any::TypeId::of::<T>();
14879 self.addons
14880 .get(&type_id)
14881 .and_then(|item| item.to_any().downcast_ref::<T>())
14882 }
14883
14884 fn character_size(&self, window: &mut Window) -> gpui::Size<Pixels> {
14885 let text_layout_details = self.text_layout_details(window);
14886 let style = &text_layout_details.editor_style;
14887 let font_id = window.text_system().resolve_font(&style.text.font());
14888 let font_size = style.text.font_size.to_pixels(window.rem_size());
14889 let line_height = style.text.line_height_in_pixels(window.rem_size());
14890 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
14891
14892 gpui::Size::new(em_width, line_height)
14893 }
14894}
14895
14896fn get_uncommitted_diff_for_buffer(
14897 project: &Entity<Project>,
14898 buffers: impl IntoIterator<Item = Entity<Buffer>>,
14899 buffer: Entity<MultiBuffer>,
14900 cx: &mut App,
14901) {
14902 let mut tasks = Vec::new();
14903 project.update(cx, |project, cx| {
14904 for buffer in buffers {
14905 tasks.push(project.open_uncommitted_diff(buffer.clone(), cx))
14906 }
14907 });
14908 cx.spawn(|mut cx| async move {
14909 let diffs = futures::future::join_all(tasks).await;
14910 buffer
14911 .update(&mut cx, |buffer, cx| {
14912 for diff in diffs.into_iter().flatten() {
14913 buffer.add_diff(diff, cx);
14914 }
14915 })
14916 .ok();
14917 })
14918 .detach();
14919}
14920
14921fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
14922 let tab_size = tab_size.get() as usize;
14923 let mut width = offset;
14924
14925 for ch in text.chars() {
14926 width += if ch == '\t' {
14927 tab_size - (width % tab_size)
14928 } else {
14929 1
14930 };
14931 }
14932
14933 width - offset
14934}
14935
14936#[cfg(test)]
14937mod tests {
14938 use super::*;
14939
14940 #[test]
14941 fn test_string_size_with_expanded_tabs() {
14942 let nz = |val| NonZeroU32::new(val).unwrap();
14943 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
14944 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
14945 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
14946 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
14947 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
14948 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
14949 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
14950 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
14951 }
14952}
14953
14954/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
14955struct WordBreakingTokenizer<'a> {
14956 input: &'a str,
14957}
14958
14959impl<'a> WordBreakingTokenizer<'a> {
14960 fn new(input: &'a str) -> Self {
14961 Self { input }
14962 }
14963}
14964
14965fn is_char_ideographic(ch: char) -> bool {
14966 use unicode_script::Script::*;
14967 use unicode_script::UnicodeScript;
14968 matches!(ch.script(), Han | Tangut | Yi)
14969}
14970
14971fn is_grapheme_ideographic(text: &str) -> bool {
14972 text.chars().any(is_char_ideographic)
14973}
14974
14975fn is_grapheme_whitespace(text: &str) -> bool {
14976 text.chars().any(|x| x.is_whitespace())
14977}
14978
14979fn should_stay_with_preceding_ideograph(text: &str) -> bool {
14980 text.chars().next().map_or(false, |ch| {
14981 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
14982 })
14983}
14984
14985#[derive(PartialEq, Eq, Debug, Clone, Copy)]
14986struct WordBreakToken<'a> {
14987 token: &'a str,
14988 grapheme_len: usize,
14989 is_whitespace: bool,
14990}
14991
14992impl<'a> Iterator for WordBreakingTokenizer<'a> {
14993 /// Yields a span, the count of graphemes in the token, and whether it was
14994 /// whitespace. Note that it also breaks at word boundaries.
14995 type Item = WordBreakToken<'a>;
14996
14997 fn next(&mut self) -> Option<Self::Item> {
14998 use unicode_segmentation::UnicodeSegmentation;
14999 if self.input.is_empty() {
15000 return None;
15001 }
15002
15003 let mut iter = self.input.graphemes(true).peekable();
15004 let mut offset = 0;
15005 let mut graphemes = 0;
15006 if let Some(first_grapheme) = iter.next() {
15007 let is_whitespace = is_grapheme_whitespace(first_grapheme);
15008 offset += first_grapheme.len();
15009 graphemes += 1;
15010 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
15011 if let Some(grapheme) = iter.peek().copied() {
15012 if should_stay_with_preceding_ideograph(grapheme) {
15013 offset += grapheme.len();
15014 graphemes += 1;
15015 }
15016 }
15017 } else {
15018 let mut words = self.input[offset..].split_word_bound_indices().peekable();
15019 let mut next_word_bound = words.peek().copied();
15020 if next_word_bound.map_or(false, |(i, _)| i == 0) {
15021 next_word_bound = words.next();
15022 }
15023 while let Some(grapheme) = iter.peek().copied() {
15024 if next_word_bound.map_or(false, |(i, _)| i == offset) {
15025 break;
15026 };
15027 if is_grapheme_whitespace(grapheme) != is_whitespace {
15028 break;
15029 };
15030 offset += grapheme.len();
15031 graphemes += 1;
15032 iter.next();
15033 }
15034 }
15035 let token = &self.input[..offset];
15036 self.input = &self.input[offset..];
15037 if is_whitespace {
15038 Some(WordBreakToken {
15039 token: " ",
15040 grapheme_len: 1,
15041 is_whitespace: true,
15042 })
15043 } else {
15044 Some(WordBreakToken {
15045 token,
15046 grapheme_len: graphemes,
15047 is_whitespace: false,
15048 })
15049 }
15050 } else {
15051 None
15052 }
15053 }
15054}
15055
15056#[test]
15057fn test_word_breaking_tokenizer() {
15058 let tests: &[(&str, &[(&str, usize, bool)])] = &[
15059 ("", &[]),
15060 (" ", &[(" ", 1, true)]),
15061 ("Ʒ", &[("Ʒ", 1, false)]),
15062 ("Ǽ", &[("Ǽ", 1, false)]),
15063 ("⋑", &[("⋑", 1, false)]),
15064 ("⋑⋑", &[("⋑⋑", 2, false)]),
15065 (
15066 "原理，进而",
15067 &[
15068 ("原", 1, false),
15069 ("理，", 2, false),
15070 ("进", 1, false),
15071 ("而", 1, false),
15072 ],
15073 ),
15074 (
15075 "hello world",
15076 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
15077 ),
15078 (
15079 "hello, world",
15080 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
15081 ),
15082 (
15083 " hello world",
15084 &[
15085 (" ", 1, true),
15086 ("hello", 5, false),
15087 (" ", 1, true),
15088 ("world", 5, false),
15089 ],
15090 ),
15091 (
15092 "这是什么 \n 钢笔",
15093 &[
15094 ("这", 1, false),
15095 ("是", 1, false),
15096 ("什", 1, false),
15097 ("么", 1, false),
15098 (" ", 1, true),
15099 ("钢", 1, false),
15100 ("笔", 1, false),
15101 ],
15102 ),
15103 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
15104 ];
15105
15106 for (input, result) in tests {
15107 assert_eq!(
15108 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
15109 result
15110 .iter()
15111 .copied()
15112 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
15113 token,
15114 grapheme_len,
15115 is_whitespace,
15116 })
15117 .collect::<Vec<_>>()
15118 );
15119 }
15120}
15121
15122fn wrap_with_prefix(
15123 line_prefix: String,
15124 unwrapped_text: String,
15125 wrap_column: usize,
15126 tab_size: NonZeroU32,
15127) -> String {
15128 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
15129 let mut wrapped_text = String::new();
15130 let mut current_line = line_prefix.clone();
15131
15132 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
15133 let mut current_line_len = line_prefix_len;
15134 for WordBreakToken {
15135 token,
15136 grapheme_len,
15137 is_whitespace,
15138 } in tokenizer
15139 {
15140 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
15141 wrapped_text.push_str(current_line.trim_end());
15142 wrapped_text.push('\n');
15143 current_line.truncate(line_prefix.len());
15144 current_line_len = line_prefix_len;
15145 if !is_whitespace {
15146 current_line.push_str(token);
15147 current_line_len += grapheme_len;
15148 }
15149 } else if !is_whitespace {
15150 current_line.push_str(token);
15151 current_line_len += grapheme_len;
15152 } else if current_line_len != line_prefix_len {
15153 current_line.push(' ');
15154 current_line_len += 1;
15155 }
15156 }
15157
15158 if !current_line.is_empty() {
15159 wrapped_text.push_str(¤t_line);
15160 }
15161 wrapped_text
15162}
15163
15164#[test]
15165fn test_wrap_with_prefix() {
15166 assert_eq!(
15167 wrap_with_prefix(
15168 "# ".to_string(),
15169 "abcdefg".to_string(),
15170 4,
15171 NonZeroU32::new(4).unwrap()
15172 ),
15173 "# abcdefg"
15174 );
15175 assert_eq!(
15176 wrap_with_prefix(
15177 "".to_string(),
15178 "\thello world".to_string(),
15179 8,
15180 NonZeroU32::new(4).unwrap()
15181 ),
15182 "hello\nworld"
15183 );
15184 assert_eq!(
15185 wrap_with_prefix(
15186 "// ".to_string(),
15187 "xx \nyy zz aa bb cc".to_string(),
15188 12,
15189 NonZeroU32::new(4).unwrap()
15190 ),
15191 "// xx yy zz\n// aa bb cc"
15192 );
15193 assert_eq!(
15194 wrap_with_prefix(
15195 String::new(),
15196 "这是什么 \n 钢笔".to_string(),
15197 3,
15198 NonZeroU32::new(4).unwrap()
15199 ),
15200 "这是什\n么 钢\n笔"
15201 );
15202}
15203
15204pub trait CollaborationHub {
15205 fn collaborators<'a>(&self, cx: &'a App) -> &'a HashMap<PeerId, Collaborator>;
15206 fn user_participant_indices<'a>(&self, cx: &'a App) -> &'a HashMap<u64, ParticipantIndex>;
15207 fn user_names(&self, cx: &App) -> HashMap<u64, SharedString>;
15208}
15209
15210impl CollaborationHub for Entity<Project> {
15211 fn collaborators<'a>(&self, cx: &'a App) -> &'a HashMap<PeerId, Collaborator> {
15212 self.read(cx).collaborators()
15213 }
15214
15215 fn user_participant_indices<'a>(&self, cx: &'a App) -> &'a HashMap<u64, ParticipantIndex> {
15216 self.read(cx).user_store().read(cx).participant_indices()
15217 }
15218
15219 fn user_names(&self, cx: &App) -> HashMap<u64, SharedString> {
15220 let this = self.read(cx);
15221 let user_ids = this.collaborators().values().map(|c| c.user_id);
15222 this.user_store().read_with(cx, |user_store, cx| {
15223 user_store.participant_names(user_ids, cx)
15224 })
15225 }
15226}
15227
15228pub trait SemanticsProvider {
15229 fn hover(
15230 &self,
15231 buffer: &Entity<Buffer>,
15232 position: text::Anchor,
15233 cx: &mut App,
15234 ) -> Option<Task<Vec<project::Hover>>>;
15235
15236 fn inlay_hints(
15237 &self,
15238 buffer_handle: Entity<Buffer>,
15239 range: Range<text::Anchor>,
15240 cx: &mut App,
15241 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
15242
15243 fn resolve_inlay_hint(
15244 &self,
15245 hint: InlayHint,
15246 buffer_handle: Entity<Buffer>,
15247 server_id: LanguageServerId,
15248 cx: &mut App,
15249 ) -> Option<Task<anyhow::Result<InlayHint>>>;
15250
15251 fn supports_inlay_hints(&self, buffer: &Entity<Buffer>, cx: &App) -> bool;
15252
15253 fn document_highlights(
15254 &self,
15255 buffer: &Entity<Buffer>,
15256 position: text::Anchor,
15257 cx: &mut App,
15258 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
15259
15260 fn definitions(
15261 &self,
15262 buffer: &Entity<Buffer>,
15263 position: text::Anchor,
15264 kind: GotoDefinitionKind,
15265 cx: &mut App,
15266 ) -> Option<Task<Result<Vec<LocationLink>>>>;
15267
15268 fn range_for_rename(
15269 &self,
15270 buffer: &Entity<Buffer>,
15271 position: text::Anchor,
15272 cx: &mut App,
15273 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
15274
15275 fn perform_rename(
15276 &self,
15277 buffer: &Entity<Buffer>,
15278 position: text::Anchor,
15279 new_name: String,
15280 cx: &mut App,
15281 ) -> Option<Task<Result<ProjectTransaction>>>;
15282}
15283
15284pub trait CompletionProvider {
15285 fn completions(
15286 &self,
15287 buffer: &Entity<Buffer>,
15288 buffer_position: text::Anchor,
15289 trigger: CompletionContext,
15290 window: &mut Window,
15291 cx: &mut Context<Editor>,
15292 ) -> Task<Result<Vec<Completion>>>;
15293
15294 fn resolve_completions(
15295 &self,
15296 buffer: Entity<Buffer>,
15297 completion_indices: Vec<usize>,
15298 completions: Rc<RefCell<Box<[Completion]>>>,
15299 cx: &mut Context<Editor>,
15300 ) -> Task<Result<bool>>;
15301
15302 fn apply_additional_edits_for_completion(
15303 &self,
15304 _buffer: Entity<Buffer>,
15305 _completions: Rc<RefCell<Box<[Completion]>>>,
15306 _completion_index: usize,
15307 _push_to_history: bool,
15308 _cx: &mut Context<Editor>,
15309 ) -> Task<Result<Option<language::Transaction>>> {
15310 Task::ready(Ok(None))
15311 }
15312
15313 fn is_completion_trigger(
15314 &self,
15315 buffer: &Entity<Buffer>,
15316 position: language::Anchor,
15317 text: &str,
15318 trigger_in_words: bool,
15319 cx: &mut Context<Editor>,
15320 ) -> bool;
15321
15322 fn sort_completions(&self) -> bool {
15323 true
15324 }
15325}
15326
15327pub trait CodeActionProvider {
15328 fn id(&self) -> Arc<str>;
15329
15330 fn code_actions(
15331 &self,
15332 buffer: &Entity<Buffer>,
15333 range: Range<text::Anchor>,
15334 window: &mut Window,
15335 cx: &mut App,
15336 ) -> Task<Result<Vec<CodeAction>>>;
15337
15338 fn apply_code_action(
15339 &self,
15340 buffer_handle: Entity<Buffer>,
15341 action: CodeAction,
15342 excerpt_id: ExcerptId,
15343 push_to_history: bool,
15344 window: &mut Window,
15345 cx: &mut App,
15346 ) -> Task<Result<ProjectTransaction>>;
15347}
15348
15349impl CodeActionProvider for Entity<Project> {
15350 fn id(&self) -> Arc<str> {
15351 "project".into()
15352 }
15353
15354 fn code_actions(
15355 &self,
15356 buffer: &Entity<Buffer>,
15357 range: Range<text::Anchor>,
15358 _window: &mut Window,
15359 cx: &mut App,
15360 ) -> Task<Result<Vec<CodeAction>>> {
15361 self.update(cx, |project, cx| {
15362 project.code_actions(buffer, range, None, cx)
15363 })
15364 }
15365
15366 fn apply_code_action(
15367 &self,
15368 buffer_handle: Entity<Buffer>,
15369 action: CodeAction,
15370 _excerpt_id: ExcerptId,
15371 push_to_history: bool,
15372 _window: &mut Window,
15373 cx: &mut App,
15374 ) -> Task<Result<ProjectTransaction>> {
15375 self.update(cx, |project, cx| {
15376 project.apply_code_action(buffer_handle, action, push_to_history, cx)
15377 })
15378 }
15379}
15380
15381fn snippet_completions(
15382 project: &Project,
15383 buffer: &Entity<Buffer>,
15384 buffer_position: text::Anchor,
15385 cx: &mut App,
15386) -> Task<Result<Vec<Completion>>> {
15387 let language = buffer.read(cx).language_at(buffer_position);
15388 let language_name = language.as_ref().map(|language| language.lsp_id());
15389 let snippet_store = project.snippets().read(cx);
15390 let snippets = snippet_store.snippets_for(language_name, cx);
15391
15392 if snippets.is_empty() {
15393 return Task::ready(Ok(vec![]));
15394 }
15395 let snapshot = buffer.read(cx).text_snapshot();
15396 let chars: String = snapshot
15397 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
15398 .collect();
15399
15400 let scope = language.map(|language| language.default_scope());
15401 let executor = cx.background_executor().clone();
15402
15403 cx.background_executor().spawn(async move {
15404 let classifier = CharClassifier::new(scope).for_completion(true);
15405 let mut last_word = chars
15406 .chars()
15407 .take_while(|c| classifier.is_word(*c))
15408 .collect::<String>();
15409 last_word = last_word.chars().rev().collect();
15410
15411 if last_word.is_empty() {
15412 return Ok(vec![]);
15413 }
15414
15415 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
15416 let to_lsp = |point: &text::Anchor| {
15417 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
15418 point_to_lsp(end)
15419 };
15420 let lsp_end = to_lsp(&buffer_position);
15421
15422 let candidates = snippets
15423 .iter()
15424 .enumerate()
15425 .flat_map(|(ix, snippet)| {
15426 snippet
15427 .prefix
15428 .iter()
15429 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
15430 })
15431 .collect::<Vec<StringMatchCandidate>>();
15432
15433 let mut matches = fuzzy::match_strings(
15434 &candidates,
15435 &last_word,
15436 last_word.chars().any(|c| c.is_uppercase()),
15437 100,
15438 &Default::default(),
15439 executor,
15440 )
15441 .await;
15442
15443 // Remove all candidates where the query's start does not match the start of any word in the candidate
15444 if let Some(query_start) = last_word.chars().next() {
15445 matches.retain(|string_match| {
15446 split_words(&string_match.string).any(|word| {
15447 // Check that the first codepoint of the word as lowercase matches the first
15448 // codepoint of the query as lowercase
15449 word.chars()
15450 .flat_map(|codepoint| codepoint.to_lowercase())
15451 .zip(query_start.to_lowercase())
15452 .all(|(word_cp, query_cp)| word_cp == query_cp)
15453 })
15454 });
15455 }
15456
15457 let matched_strings = matches
15458 .into_iter()
15459 .map(|m| m.string)
15460 .collect::<HashSet<_>>();
15461
15462 let result: Vec<Completion> = snippets
15463 .into_iter()
15464 .filter_map(|snippet| {
15465 let matching_prefix = snippet
15466 .prefix
15467 .iter()
15468 .find(|prefix| matched_strings.contains(*prefix))?;
15469 let start = as_offset - last_word.len();
15470 let start = snapshot.anchor_before(start);
15471 let range = start..buffer_position;
15472 let lsp_start = to_lsp(&start);
15473 let lsp_range = lsp::Range {
15474 start: lsp_start,
15475 end: lsp_end,
15476 };
15477 Some(Completion {
15478 old_range: range,
15479 new_text: snippet.body.clone(),
15480 resolved: false,
15481 label: CodeLabel {
15482 text: matching_prefix.clone(),
15483 runs: vec![],
15484 filter_range: 0..matching_prefix.len(),
15485 },
15486 server_id: LanguageServerId(usize::MAX),
15487 documentation: snippet
15488 .description
15489 .clone()
15490 .map(CompletionDocumentation::SingleLine),
15491 lsp_completion: lsp::CompletionItem {
15492 label: snippet.prefix.first().unwrap().clone(),
15493 kind: Some(CompletionItemKind::SNIPPET),
15494 label_details: snippet.description.as_ref().map(|description| {
15495 lsp::CompletionItemLabelDetails {
15496 detail: Some(description.clone()),
15497 description: None,
15498 }
15499 }),
15500 insert_text_format: Some(InsertTextFormat::SNIPPET),
15501 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
15502 lsp::InsertReplaceEdit {
15503 new_text: snippet.body.clone(),
15504 insert: lsp_range,
15505 replace: lsp_range,
15506 },
15507 )),
15508 filter_text: Some(snippet.body.clone()),
15509 sort_text: Some(char::MAX.to_string()),
15510 ..Default::default()
15511 },
15512 confirm: None,
15513 })
15514 })
15515 .collect();
15516
15517 Ok(result)
15518 })
15519}
15520
15521impl CompletionProvider for Entity<Project> {
15522 fn completions(
15523 &self,
15524 buffer: &Entity<Buffer>,
15525 buffer_position: text::Anchor,
15526 options: CompletionContext,
15527 _window: &mut Window,
15528 cx: &mut Context<Editor>,
15529 ) -> Task<Result<Vec<Completion>>> {
15530 self.update(cx, |project, cx| {
15531 let snippets = snippet_completions(project, buffer, buffer_position, cx);
15532 let project_completions = project.completions(buffer, buffer_position, options, cx);
15533 cx.background_executor().spawn(async move {
15534 let mut completions = project_completions.await?;
15535 let snippets_completions = snippets.await?;
15536 completions.extend(snippets_completions);
15537 Ok(completions)
15538 })
15539 })
15540 }
15541
15542 fn resolve_completions(
15543 &self,
15544 buffer: Entity<Buffer>,
15545 completion_indices: Vec<usize>,
15546 completions: Rc<RefCell<Box<[Completion]>>>,
15547 cx: &mut Context<Editor>,
15548 ) -> Task<Result<bool>> {
15549 self.update(cx, |project, cx| {
15550 project.lsp_store().update(cx, |lsp_store, cx| {
15551 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
15552 })
15553 })
15554 }
15555
15556 fn apply_additional_edits_for_completion(
15557 &self,
15558 buffer: Entity<Buffer>,
15559 completions: Rc<RefCell<Box<[Completion]>>>,
15560 completion_index: usize,
15561 push_to_history: bool,
15562 cx: &mut Context<Editor>,
15563 ) -> Task<Result<Option<language::Transaction>>> {
15564 self.update(cx, |project, cx| {
15565 project.lsp_store().update(cx, |lsp_store, cx| {
15566 lsp_store.apply_additional_edits_for_completion(
15567 buffer,
15568 completions,
15569 completion_index,
15570 push_to_history,
15571 cx,
15572 )
15573 })
15574 })
15575 }
15576
15577 fn is_completion_trigger(
15578 &self,
15579 buffer: &Entity<Buffer>,
15580 position: language::Anchor,
15581 text: &str,
15582 trigger_in_words: bool,
15583 cx: &mut Context<Editor>,
15584 ) -> bool {
15585 let mut chars = text.chars();
15586 let char = if let Some(char) = chars.next() {
15587 char
15588 } else {
15589 return false;
15590 };
15591 if chars.next().is_some() {
15592 return false;
15593 }
15594
15595 let buffer = buffer.read(cx);
15596 let snapshot = buffer.snapshot();
15597 if !snapshot.settings_at(position, cx).show_completions_on_input {
15598 return false;
15599 }
15600 let classifier = snapshot.char_classifier_at(position).for_completion(true);
15601 if trigger_in_words && classifier.is_word(char) {
15602 return true;
15603 }
15604
15605 buffer.completion_triggers().contains(text)
15606 }
15607}
15608
15609impl SemanticsProvider for Entity<Project> {
15610 fn hover(
15611 &self,
15612 buffer: &Entity<Buffer>,
15613 position: text::Anchor,
15614 cx: &mut App,
15615 ) -> Option<Task<Vec<project::Hover>>> {
15616 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
15617 }
15618
15619 fn document_highlights(
15620 &self,
15621 buffer: &Entity<Buffer>,
15622 position: text::Anchor,
15623 cx: &mut App,
15624 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
15625 Some(self.update(cx, |project, cx| {
15626 project.document_highlights(buffer, position, cx)
15627 }))
15628 }
15629
15630 fn definitions(
15631 &self,
15632 buffer: &Entity<Buffer>,
15633 position: text::Anchor,
15634 kind: GotoDefinitionKind,
15635 cx: &mut App,
15636 ) -> Option<Task<Result<Vec<LocationLink>>>> {
15637 Some(self.update(cx, |project, cx| match kind {
15638 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
15639 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
15640 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
15641 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
15642 }))
15643 }
15644
15645 fn supports_inlay_hints(&self, buffer: &Entity<Buffer>, cx: &App) -> bool {
15646 // TODO: make this work for remote projects
15647 self.read(cx)
15648 .language_servers_for_local_buffer(buffer.read(cx), cx)
15649 .any(
15650 |(_, server)| match server.capabilities().inlay_hint_provider {
15651 Some(lsp::OneOf::Left(enabled)) => enabled,
15652 Some(lsp::OneOf::Right(_)) => true,
15653 None => false,
15654 },
15655 )
15656 }
15657
15658 fn inlay_hints(
15659 &self,
15660 buffer_handle: Entity<Buffer>,
15661 range: Range<text::Anchor>,
15662 cx: &mut App,
15663 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
15664 Some(self.update(cx, |project, cx| {
15665 project.inlay_hints(buffer_handle, range, cx)
15666 }))
15667 }
15668
15669 fn resolve_inlay_hint(
15670 &self,
15671 hint: InlayHint,
15672 buffer_handle: Entity<Buffer>,
15673 server_id: LanguageServerId,
15674 cx: &mut App,
15675 ) -> Option<Task<anyhow::Result<InlayHint>>> {
15676 Some(self.update(cx, |project, cx| {
15677 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
15678 }))
15679 }
15680
15681 fn range_for_rename(
15682 &self,
15683 buffer: &Entity<Buffer>,
15684 position: text::Anchor,
15685 cx: &mut App,
15686 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
15687 Some(self.update(cx, |project, cx| {
15688 let buffer = buffer.clone();
15689 let task = project.prepare_rename(buffer.clone(), position, cx);
15690 cx.spawn(|_, mut cx| async move {
15691 Ok(match task.await? {
15692 PrepareRenameResponse::Success(range) => Some(range),
15693 PrepareRenameResponse::InvalidPosition => None,
15694 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
15695 // Fallback on using TreeSitter info to determine identifier range
15696 buffer.update(&mut cx, |buffer, _| {
15697 let snapshot = buffer.snapshot();
15698 let (range, kind) = snapshot.surrounding_word(position);
15699 if kind != Some(CharKind::Word) {
15700 return None;
15701 }
15702 Some(
15703 snapshot.anchor_before(range.start)
15704 ..snapshot.anchor_after(range.end),
15705 )
15706 })?
15707 }
15708 })
15709 })
15710 }))
15711 }
15712
15713 fn perform_rename(
15714 &self,
15715 buffer: &Entity<Buffer>,
15716 position: text::Anchor,
15717 new_name: String,
15718 cx: &mut App,
15719 ) -> Option<Task<Result<ProjectTransaction>>> {
15720 Some(self.update(cx, |project, cx| {
15721 project.perform_rename(buffer.clone(), position, new_name, cx)
15722 }))
15723 }
15724}
15725
15726fn inlay_hint_settings(
15727 location: Anchor,
15728 snapshot: &MultiBufferSnapshot,
15729 cx: &mut Context<Editor>,
15730) -> InlayHintSettings {
15731 let file = snapshot.file_at(location);
15732 let language = snapshot.language_at(location).map(|l| l.name());
15733 language_settings(language, file, cx).inlay_hints
15734}
15735
15736fn consume_contiguous_rows(
15737 contiguous_row_selections: &mut Vec<Selection<Point>>,
15738 selection: &Selection<Point>,
15739 display_map: &DisplaySnapshot,
15740 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
15741) -> (MultiBufferRow, MultiBufferRow) {
15742 contiguous_row_selections.push(selection.clone());
15743 let start_row = MultiBufferRow(selection.start.row);
15744 let mut end_row = ending_row(selection, display_map);
15745
15746 while let Some(next_selection) = selections.peek() {
15747 if next_selection.start.row <= end_row.0 {
15748 end_row = ending_row(next_selection, display_map);
15749 contiguous_row_selections.push(selections.next().unwrap().clone());
15750 } else {
15751 break;
15752 }
15753 }
15754 (start_row, end_row)
15755}
15756
15757fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
15758 if next_selection.end.column > 0 || next_selection.is_empty() {
15759 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
15760 } else {
15761 MultiBufferRow(next_selection.end.row)
15762 }
15763}
15764
15765impl EditorSnapshot {
15766 pub fn remote_selections_in_range<'a>(
15767 &'a self,
15768 range: &'a Range<Anchor>,
15769 collaboration_hub: &dyn CollaborationHub,
15770 cx: &'a App,
15771 ) -> impl 'a + Iterator<Item = RemoteSelection> {
15772 let participant_names = collaboration_hub.user_names(cx);
15773 let participant_indices = collaboration_hub.user_participant_indices(cx);
15774 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
15775 let collaborators_by_replica_id = collaborators_by_peer_id
15776 .iter()
15777 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
15778 .collect::<HashMap<_, _>>();
15779 self.buffer_snapshot
15780 .selections_in_range(range, false)
15781 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
15782 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
15783 let participant_index = participant_indices.get(&collaborator.user_id).copied();
15784 let user_name = participant_names.get(&collaborator.user_id).cloned();
15785 Some(RemoteSelection {
15786 replica_id,
15787 selection,
15788 cursor_shape,
15789 line_mode,
15790 participant_index,
15791 peer_id: collaborator.peer_id,
15792 user_name,
15793 })
15794 })
15795 }
15796
15797 pub fn hunks_for_ranges(
15798 &self,
15799 ranges: impl Iterator<Item = Range<Point>>,
15800 ) -> Vec<MultiBufferDiffHunk> {
15801 let mut hunks = Vec::new();
15802 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
15803 HashMap::default();
15804 for query_range in ranges {
15805 let query_rows =
15806 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
15807 for hunk in self.buffer_snapshot.diff_hunks_in_range(
15808 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
15809 ) {
15810 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
15811 // when the caret is just above or just below the deleted hunk.
15812 let allow_adjacent = hunk.status().is_removed();
15813 let related_to_selection = if allow_adjacent {
15814 hunk.row_range.overlaps(&query_rows)
15815 || hunk.row_range.start == query_rows.end
15816 || hunk.row_range.end == query_rows.start
15817 } else {
15818 hunk.row_range.overlaps(&query_rows)
15819 };
15820 if related_to_selection {
15821 if !processed_buffer_rows
15822 .entry(hunk.buffer_id)
15823 .or_default()
15824 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
15825 {
15826 continue;
15827 }
15828 hunks.push(hunk);
15829 }
15830 }
15831 }
15832
15833 hunks
15834 }
15835
15836 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
15837 self.display_snapshot.buffer_snapshot.language_at(position)
15838 }
15839
15840 pub fn is_focused(&self) -> bool {
15841 self.is_focused
15842 }
15843
15844 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
15845 self.placeholder_text.as_ref()
15846 }
15847
15848 pub fn scroll_position(&self) -> gpui::Point<f32> {
15849 self.scroll_anchor.scroll_position(&self.display_snapshot)
15850 }
15851
15852 fn gutter_dimensions(
15853 &self,
15854 font_id: FontId,
15855 font_size: Pixels,
15856 max_line_number_width: Pixels,
15857 cx: &App,
15858 ) -> Option<GutterDimensions> {
15859 if !self.show_gutter {
15860 return None;
15861 }
15862
15863 let descent = cx.text_system().descent(font_id, font_size);
15864 let em_width = cx.text_system().em_width(font_id, font_size).log_err()?;
15865 let em_advance = cx.text_system().em_advance(font_id, font_size).log_err()?;
15866
15867 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
15868 matches!(
15869 ProjectSettings::get_global(cx).git.git_gutter,
15870 Some(GitGutterSetting::TrackedFiles)
15871 )
15872 });
15873 let gutter_settings = EditorSettings::get_global(cx).gutter;
15874 let show_line_numbers = self
15875 .show_line_numbers
15876 .unwrap_or(gutter_settings.line_numbers);
15877 let line_gutter_width = if show_line_numbers {
15878 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
15879 let min_width_for_number_on_gutter = em_advance * 4.0;
15880 max_line_number_width.max(min_width_for_number_on_gutter)
15881 } else {
15882 0.0.into()
15883 };
15884
15885 let show_code_actions = self
15886 .show_code_actions
15887 .unwrap_or(gutter_settings.code_actions);
15888
15889 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
15890
15891 let git_blame_entries_width =
15892 self.git_blame_gutter_max_author_length
15893 .map(|max_author_length| {
15894 const MAX_RELATIVE_TIMESTAMP: &str = "60 minutes ago";
15895
15896 /// The number of characters to dedicate to gaps and margins.
15897 const SPACING_WIDTH: usize = 4;
15898
15899 let max_char_count = max_author_length
15900 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
15901 + ::git::SHORT_SHA_LENGTH
15902 + MAX_RELATIVE_TIMESTAMP.len()
15903 + SPACING_WIDTH;
15904
15905 em_advance * max_char_count
15906 });
15907
15908 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
15909 left_padding += if show_code_actions || show_runnables {
15910 em_width * 3.0
15911 } else if show_git_gutter && show_line_numbers {
15912 em_width * 2.0
15913 } else if show_git_gutter || show_line_numbers {
15914 em_width
15915 } else {
15916 px(0.)
15917 };
15918
15919 let right_padding = if gutter_settings.folds && show_line_numbers {
15920 em_width * 4.0
15921 } else if gutter_settings.folds {
15922 em_width * 3.0
15923 } else if show_line_numbers {
15924 em_width
15925 } else {
15926 px(0.)
15927 };
15928
15929 Some(GutterDimensions {
15930 left_padding,
15931 right_padding,
15932 width: line_gutter_width + left_padding + right_padding,
15933 margin: -descent,
15934 git_blame_entries_width,
15935 })
15936 }
15937
15938 pub fn render_crease_toggle(
15939 &self,
15940 buffer_row: MultiBufferRow,
15941 row_contains_cursor: bool,
15942 editor: Entity<Editor>,
15943 window: &mut Window,
15944 cx: &mut App,
15945 ) -> Option<AnyElement> {
15946 let folded = self.is_line_folded(buffer_row);
15947 let mut is_foldable = false;
15948
15949 if let Some(crease) = self
15950 .crease_snapshot
15951 .query_row(buffer_row, &self.buffer_snapshot)
15952 {
15953 is_foldable = true;
15954 match crease {
15955 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
15956 if let Some(render_toggle) = render_toggle {
15957 let toggle_callback =
15958 Arc::new(move |folded, window: &mut Window, cx: &mut App| {
15959 if folded {
15960 editor.update(cx, |editor, cx| {
15961 editor.fold_at(&crate::FoldAt { buffer_row }, window, cx)
15962 });
15963 } else {
15964 editor.update(cx, |editor, cx| {
15965 editor.unfold_at(
15966 &crate::UnfoldAt { buffer_row },
15967 window,
15968 cx,
15969 )
15970 });
15971 }
15972 });
15973 return Some((render_toggle)(
15974 buffer_row,
15975 folded,
15976 toggle_callback,
15977 window,
15978 cx,
15979 ));
15980 }
15981 }
15982 }
15983 }
15984
15985 is_foldable |= self.starts_indent(buffer_row);
15986
15987 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
15988 Some(
15989 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
15990 .toggle_state(folded)
15991 .on_click(window.listener_for(&editor, move |this, _e, window, cx| {
15992 if folded {
15993 this.unfold_at(&UnfoldAt { buffer_row }, window, cx);
15994 } else {
15995 this.fold_at(&FoldAt { buffer_row }, window, cx);
15996 }
15997 }))
15998 .into_any_element(),
15999 )
16000 } else {
16001 None
16002 }
16003 }
16004
16005 pub fn render_crease_trailer(
16006 &self,
16007 buffer_row: MultiBufferRow,
16008 window: &mut Window,
16009 cx: &mut App,
16010 ) -> Option<AnyElement> {
16011 let folded = self.is_line_folded(buffer_row);
16012 if let Crease::Inline { render_trailer, .. } = self
16013 .crease_snapshot
16014 .query_row(buffer_row, &self.buffer_snapshot)?
16015 {
16016 let render_trailer = render_trailer.as_ref()?;
16017 Some(render_trailer(buffer_row, folded, window, cx))
16018 } else {
16019 None
16020 }
16021 }
16022}
16023
16024impl Deref for EditorSnapshot {
16025 type Target = DisplaySnapshot;
16026
16027 fn deref(&self) -> &Self::Target {
16028 &self.display_snapshot
16029 }
16030}
16031
16032#[derive(Clone, Debug, PartialEq, Eq)]
16033pub enum EditorEvent {
16034 InputIgnored {
16035 text: Arc<str>,
16036 },
16037 InputHandled {
16038 utf16_range_to_replace: Option<Range<isize>>,
16039 text: Arc<str>,
16040 },
16041 ExcerptsAdded {
16042 buffer: Entity<Buffer>,
16043 predecessor: ExcerptId,
16044 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
16045 },
16046 ExcerptsRemoved {
16047 ids: Vec<ExcerptId>,
16048 },
16049 BufferFoldToggled {
16050 ids: Vec<ExcerptId>,
16051 folded: bool,
16052 },
16053 ExcerptsEdited {
16054 ids: Vec<ExcerptId>,
16055 },
16056 ExcerptsExpanded {
16057 ids: Vec<ExcerptId>,
16058 },
16059 BufferEdited,
16060 Edited {
16061 transaction_id: clock::Lamport,
16062 },
16063 Reparsed(BufferId),
16064 Focused,
16065 FocusedIn,
16066 Blurred,
16067 DirtyChanged,
16068 Saved,
16069 TitleChanged,
16070 DiffBaseChanged,
16071 SelectionsChanged {
16072 local: bool,
16073 },
16074 ScrollPositionChanged {
16075 local: bool,
16076 autoscroll: bool,
16077 },
16078 Closed,
16079 TransactionUndone {
16080 transaction_id: clock::Lamport,
16081 },
16082 TransactionBegun {
16083 transaction_id: clock::Lamport,
16084 },
16085 Reloaded,
16086 CursorShapeChanged,
16087}
16088
16089impl EventEmitter<EditorEvent> for Editor {}
16090
16091impl Focusable for Editor {
16092 fn focus_handle(&self, _cx: &App) -> FocusHandle {
16093 self.focus_handle.clone()
16094 }
16095}
16096
16097impl Render for Editor {
16098 fn render<'a>(&mut self, _: &mut Window, cx: &mut Context<'a, Self>) -> impl IntoElement {
16099 let settings = ThemeSettings::get_global(cx);
16100
16101 let mut text_style = match self.mode {
16102 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
16103 color: cx.theme().colors().editor_foreground,
16104 font_family: settings.ui_font.family.clone(),
16105 font_features: settings.ui_font.features.clone(),
16106 font_fallbacks: settings.ui_font.fallbacks.clone(),
16107 font_size: rems(0.875).into(),
16108 font_weight: settings.ui_font.weight,
16109 line_height: relative(settings.buffer_line_height.value()),
16110 ..Default::default()
16111 },
16112 EditorMode::Full => TextStyle {
16113 color: cx.theme().colors().editor_foreground,
16114 font_family: settings.buffer_font.family.clone(),
16115 font_features: settings.buffer_font.features.clone(),
16116 font_fallbacks: settings.buffer_font.fallbacks.clone(),
16117 font_size: settings.buffer_font_size().into(),
16118 font_weight: settings.buffer_font.weight,
16119 line_height: relative(settings.buffer_line_height.value()),
16120 ..Default::default()
16121 },
16122 };
16123 if let Some(text_style_refinement) = &self.text_style_refinement {
16124 text_style.refine(text_style_refinement)
16125 }
16126
16127 let background = match self.mode {
16128 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
16129 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
16130 EditorMode::Full => cx.theme().colors().editor_background,
16131 };
16132
16133 EditorElement::new(
16134 &cx.entity(),
16135 EditorStyle {
16136 background,
16137 local_player: cx.theme().players().local(),
16138 text: text_style,
16139 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
16140 syntax: cx.theme().syntax().clone(),
16141 status: cx.theme().status().clone(),
16142 inlay_hints_style: make_inlay_hints_style(cx),
16143 inline_completion_styles: make_suggestion_styles(cx),
16144 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
16145 },
16146 )
16147 }
16148}
16149
16150impl EntityInputHandler for Editor {
16151 fn text_for_range(
16152 &mut self,
16153 range_utf16: Range<usize>,
16154 adjusted_range: &mut Option<Range<usize>>,
16155 _: &mut Window,
16156 cx: &mut Context<Self>,
16157 ) -> Option<String> {
16158 let snapshot = self.buffer.read(cx).read(cx);
16159 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
16160 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
16161 if (start.0..end.0) != range_utf16 {
16162 adjusted_range.replace(start.0..end.0);
16163 }
16164 Some(snapshot.text_for_range(start..end).collect())
16165 }
16166
16167 fn selected_text_range(
16168 &mut self,
16169 ignore_disabled_input: bool,
16170 _: &mut Window,
16171 cx: &mut Context<Self>,
16172 ) -> Option<UTF16Selection> {
16173 // Prevent the IME menu from appearing when holding down an alphabetic key
16174 // while input is disabled.
16175 if !ignore_disabled_input && !self.input_enabled {
16176 return None;
16177 }
16178
16179 let selection = self.selections.newest::<OffsetUtf16>(cx);
16180 let range = selection.range();
16181
16182 Some(UTF16Selection {
16183 range: range.start.0..range.end.0,
16184 reversed: selection.reversed,
16185 })
16186 }
16187
16188 fn marked_text_range(&self, _: &mut Window, cx: &mut Context<Self>) -> Option<Range<usize>> {
16189 let snapshot = self.buffer.read(cx).read(cx);
16190 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
16191 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
16192 }
16193
16194 fn unmark_text(&mut self, _: &mut Window, cx: &mut Context<Self>) {
16195 self.clear_highlights::<InputComposition>(cx);
16196 self.ime_transaction.take();
16197 }
16198
16199 fn replace_text_in_range(
16200 &mut self,
16201 range_utf16: Option<Range<usize>>,
16202 text: &str,
16203 window: &mut Window,
16204 cx: &mut Context<Self>,
16205 ) {
16206 if !self.input_enabled {
16207 cx.emit(EditorEvent::InputIgnored { text: text.into() });
16208 return;
16209 }
16210
16211 self.transact(window, cx, |this, window, cx| {
16212 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
16213 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
16214 Some(this.selection_replacement_ranges(range_utf16, cx))
16215 } else {
16216 this.marked_text_ranges(cx)
16217 };
16218
16219 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
16220 let newest_selection_id = this.selections.newest_anchor().id;
16221 this.selections
16222 .all::<OffsetUtf16>(cx)
16223 .iter()
16224 .zip(ranges_to_replace.iter())
16225 .find_map(|(selection, range)| {
16226 if selection.id == newest_selection_id {
16227 Some(
16228 (range.start.0 as isize - selection.head().0 as isize)
16229 ..(range.end.0 as isize - selection.head().0 as isize),
16230 )
16231 } else {
16232 None
16233 }
16234 })
16235 });
16236
16237 cx.emit(EditorEvent::InputHandled {
16238 utf16_range_to_replace: range_to_replace,
16239 text: text.into(),
16240 });
16241
16242 if let Some(new_selected_ranges) = new_selected_ranges {
16243 this.change_selections(None, window, cx, |selections| {
16244 selections.select_ranges(new_selected_ranges)
16245 });
16246 this.backspace(&Default::default(), window, cx);
16247 }
16248
16249 this.handle_input(text, window, cx);
16250 });
16251
16252 if let Some(transaction) = self.ime_transaction {
16253 self.buffer.update(cx, |buffer, cx| {
16254 buffer.group_until_transaction(transaction, cx);
16255 });
16256 }
16257
16258 self.unmark_text(window, cx);
16259 }
16260
16261 fn replace_and_mark_text_in_range(
16262 &mut self,
16263 range_utf16: Option<Range<usize>>,
16264 text: &str,
16265 new_selected_range_utf16: Option<Range<usize>>,
16266 window: &mut Window,
16267 cx: &mut Context<Self>,
16268 ) {
16269 if !self.input_enabled {
16270 return;
16271 }
16272
16273 let transaction = self.transact(window, cx, |this, window, cx| {
16274 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
16275 let snapshot = this.buffer.read(cx).read(cx);
16276 if let Some(relative_range_utf16) = range_utf16.as_ref() {
16277 for marked_range in &mut marked_ranges {
16278 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
16279 marked_range.start.0 += relative_range_utf16.start;
16280 marked_range.start =
16281 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
16282 marked_range.end =
16283 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
16284 }
16285 }
16286 Some(marked_ranges)
16287 } else if let Some(range_utf16) = range_utf16 {
16288 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
16289 Some(this.selection_replacement_ranges(range_utf16, cx))
16290 } else {
16291 None
16292 };
16293
16294 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
16295 let newest_selection_id = this.selections.newest_anchor().id;
16296 this.selections
16297 .all::<OffsetUtf16>(cx)
16298 .iter()
16299 .zip(ranges_to_replace.iter())
16300 .find_map(|(selection, range)| {
16301 if selection.id == newest_selection_id {
16302 Some(
16303 (range.start.0 as isize - selection.head().0 as isize)
16304 ..(range.end.0 as isize - selection.head().0 as isize),
16305 )
16306 } else {
16307 None
16308 }
16309 })
16310 });
16311
16312 cx.emit(EditorEvent::InputHandled {
16313 utf16_range_to_replace: range_to_replace,
16314 text: text.into(),
16315 });
16316
16317 if let Some(ranges) = ranges_to_replace {
16318 this.change_selections(None, window, cx, |s| s.select_ranges(ranges));
16319 }
16320
16321 let marked_ranges = {
16322 let snapshot = this.buffer.read(cx).read(cx);
16323 this.selections
16324 .disjoint_anchors()
16325 .iter()
16326 .map(|selection| {
16327 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
16328 })
16329 .collect::<Vec<_>>()
16330 };
16331
16332 if text.is_empty() {
16333 this.unmark_text(window, cx);
16334 } else {
16335 this.highlight_text::<InputComposition>(
16336 marked_ranges.clone(),
16337 HighlightStyle {
16338 underline: Some(UnderlineStyle {
16339 thickness: px(1.),
16340 color: None,
16341 wavy: false,
16342 }),
16343 ..Default::default()
16344 },
16345 cx,
16346 );
16347 }
16348
16349 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
16350 let use_autoclose = this.use_autoclose;
16351 let use_auto_surround = this.use_auto_surround;
16352 this.set_use_autoclose(false);
16353 this.set_use_auto_surround(false);
16354 this.handle_input(text, window, cx);
16355 this.set_use_autoclose(use_autoclose);
16356 this.set_use_auto_surround(use_auto_surround);
16357
16358 if let Some(new_selected_range) = new_selected_range_utf16 {
16359 let snapshot = this.buffer.read(cx).read(cx);
16360 let new_selected_ranges = marked_ranges
16361 .into_iter()
16362 .map(|marked_range| {
16363 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
16364 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
16365 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
16366 snapshot.clip_offset_utf16(new_start, Bias::Left)
16367 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
16368 })
16369 .collect::<Vec<_>>();
16370
16371 drop(snapshot);
16372 this.change_selections(None, window, cx, |selections| {
16373 selections.select_ranges(new_selected_ranges)
16374 });
16375 }
16376 });
16377
16378 self.ime_transaction = self.ime_transaction.or(transaction);
16379 if let Some(transaction) = self.ime_transaction {
16380 self.buffer.update(cx, |buffer, cx| {
16381 buffer.group_until_transaction(transaction, cx);
16382 });
16383 }
16384
16385 if self.text_highlights::<InputComposition>(cx).is_none() {
16386 self.ime_transaction.take();
16387 }
16388 }
16389
16390 fn bounds_for_range(
16391 &mut self,
16392 range_utf16: Range<usize>,
16393 element_bounds: gpui::Bounds<Pixels>,
16394 window: &mut Window,
16395 cx: &mut Context<Self>,
16396 ) -> Option<gpui::Bounds<Pixels>> {
16397 let text_layout_details = self.text_layout_details(window);
16398 let gpui::Size {
16399 width: em_width,
16400 height: line_height,
16401 } = self.character_size(window);
16402
16403 let snapshot = self.snapshot(window, cx);
16404 let scroll_position = snapshot.scroll_position();
16405 let scroll_left = scroll_position.x * em_width;
16406
16407 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
16408 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
16409 + self.gutter_dimensions.width
16410 + self.gutter_dimensions.margin;
16411 let y = line_height * (start.row().as_f32() - scroll_position.y);
16412
16413 Some(Bounds {
16414 origin: element_bounds.origin + point(x, y),
16415 size: size(em_width, line_height),
16416 })
16417 }
16418
16419 fn character_index_for_point(
16420 &mut self,
16421 point: gpui::Point<Pixels>,
16422 _window: &mut Window,
16423 _cx: &mut Context<Self>,
16424 ) -> Option<usize> {
16425 let position_map = self.last_position_map.as_ref()?;
16426 if !position_map.text_hitbox.contains(&point) {
16427 return None;
16428 }
16429 let display_point = position_map.point_for_position(point).previous_valid;
16430 let anchor = position_map
16431 .snapshot
16432 .display_point_to_anchor(display_point, Bias::Left);
16433 let utf16_offset = anchor.to_offset_utf16(&position_map.snapshot.buffer_snapshot);
16434 Some(utf16_offset.0)
16435 }
16436}
16437
16438trait SelectionExt {
16439 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
16440 fn spanned_rows(
16441 &self,
16442 include_end_if_at_line_start: bool,
16443 map: &DisplaySnapshot,
16444 ) -> Range<MultiBufferRow>;
16445}
16446
16447impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
16448 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
16449 let start = self
16450 .start
16451 .to_point(&map.buffer_snapshot)
16452 .to_display_point(map);
16453 let end = self
16454 .end
16455 .to_point(&map.buffer_snapshot)
16456 .to_display_point(map);
16457 if self.reversed {
16458 end..start
16459 } else {
16460 start..end
16461 }
16462 }
16463
16464 fn spanned_rows(
16465 &self,
16466 include_end_if_at_line_start: bool,
16467 map: &DisplaySnapshot,
16468 ) -> Range<MultiBufferRow> {
16469 let start = self.start.to_point(&map.buffer_snapshot);
16470 let mut end = self.end.to_point(&map.buffer_snapshot);
16471 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
16472 end.row -= 1;
16473 }
16474
16475 let buffer_start = map.prev_line_boundary(start).0;
16476 let buffer_end = map.next_line_boundary(end).0;
16477 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
16478 }
16479}
16480
16481impl<T: InvalidationRegion> InvalidationStack<T> {
16482 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
16483 where
16484 S: Clone + ToOffset,
16485 {
16486 while let Some(region) = self.last() {
16487 let all_selections_inside_invalidation_ranges =
16488 if selections.len() == region.ranges().len() {
16489 selections
16490 .iter()
16491 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
16492 .all(|(selection, invalidation_range)| {
16493 let head = selection.head().to_offset(buffer);
16494 invalidation_range.start <= head && invalidation_range.end >= head
16495 })
16496 } else {
16497 false
16498 };
16499
16500 if all_selections_inside_invalidation_ranges {
16501 break;
16502 } else {
16503 self.pop();
16504 }
16505 }
16506 }
16507}
16508
16509impl<T> Default for InvalidationStack<T> {
16510 fn default() -> Self {
16511 Self(Default::default())
16512 }
16513}
16514
16515impl<T> Deref for InvalidationStack<T> {
16516 type Target = Vec<T>;
16517
16518 fn deref(&self) -> &Self::Target {
16519 &self.0
16520 }
16521}
16522
16523impl<T> DerefMut for InvalidationStack<T> {
16524 fn deref_mut(&mut self) -> &mut Self::Target {
16525 &mut self.0
16526 }
16527}
16528
16529impl InvalidationRegion for SnippetState {
16530 fn ranges(&self) -> &[Range<Anchor>] {
16531 &self.ranges[self.active_index]
16532 }
16533}
16534
16535pub fn diagnostic_block_renderer(
16536 diagnostic: Diagnostic,
16537 max_message_rows: Option<u8>,
16538 allow_closing: bool,
16539 _is_valid: bool,
16540) -> RenderBlock {
16541 let (text_without_backticks, code_ranges) =
16542 highlight_diagnostic_message(&diagnostic, max_message_rows);
16543
16544 Arc::new(move |cx: &mut BlockContext| {
16545 let group_id: SharedString = cx.block_id.to_string().into();
16546
16547 let mut text_style = cx.window.text_style().clone();
16548 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
16549 let theme_settings = ThemeSettings::get_global(cx);
16550 text_style.font_family = theme_settings.buffer_font.family.clone();
16551 text_style.font_style = theme_settings.buffer_font.style;
16552 text_style.font_features = theme_settings.buffer_font.features.clone();
16553 text_style.font_weight = theme_settings.buffer_font.weight;
16554
16555 let multi_line_diagnostic = diagnostic.message.contains('\n');
16556
16557 let buttons = |diagnostic: &Diagnostic| {
16558 if multi_line_diagnostic {
16559 v_flex()
16560 } else {
16561 h_flex()
16562 }
16563 .when(allow_closing, |div| {
16564 div.children(diagnostic.is_primary.then(|| {
16565 IconButton::new("close-block", IconName::XCircle)
16566 .icon_color(Color::Muted)
16567 .size(ButtonSize::Compact)
16568 .style(ButtonStyle::Transparent)
16569 .visible_on_hover(group_id.clone())
16570 .on_click(move |_click, window, cx| {
16571 window.dispatch_action(Box::new(Cancel), cx)
16572 })
16573 .tooltip(|window, cx| {
16574 Tooltip::for_action("Close Diagnostics", &Cancel, window, cx)
16575 })
16576 }))
16577 })
16578 .child(
16579 IconButton::new("copy-block", IconName::Copy)
16580 .icon_color(Color::Muted)
16581 .size(ButtonSize::Compact)
16582 .style(ButtonStyle::Transparent)
16583 .visible_on_hover(group_id.clone())
16584 .on_click({
16585 let message = diagnostic.message.clone();
16586 move |_click, _, cx| {
16587 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
16588 }
16589 })
16590 .tooltip(Tooltip::text("Copy diagnostic message")),
16591 )
16592 };
16593
16594 let icon_size = buttons(&diagnostic).into_any_element().layout_as_root(
16595 AvailableSpace::min_size(),
16596 cx.window,
16597 cx.app,
16598 );
16599
16600 h_flex()
16601 .id(cx.block_id)
16602 .group(group_id.clone())
16603 .relative()
16604 .size_full()
16605 .block_mouse_down()
16606 .pl(cx.gutter_dimensions.width)
16607 .w(cx.max_width - cx.gutter_dimensions.full_width())
16608 .child(
16609 div()
16610 .flex()
16611 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
16612 .flex_shrink(),
16613 )
16614 .child(buttons(&diagnostic))
16615 .child(div().flex().flex_shrink_0().child(
16616 StyledText::new(text_without_backticks.clone()).with_highlights(
16617 &text_style,
16618 code_ranges.iter().map(|range| {
16619 (
16620 range.clone(),
16621 HighlightStyle {
16622 font_weight: Some(FontWeight::BOLD),
16623 ..Default::default()
16624 },
16625 )
16626 }),
16627 ),
16628 ))
16629 .into_any_element()
16630 })
16631}
16632
16633fn inline_completion_edit_text(
16634 current_snapshot: &BufferSnapshot,
16635 edits: &[(Range<Anchor>, String)],
16636 edit_preview: &EditPreview,
16637 include_deletions: bool,
16638 cx: &App,
16639) -> HighlightedText {
16640 let edits = edits
16641 .iter()
16642 .map(|(anchor, text)| {
16643 (
16644 anchor.start.text_anchor..anchor.end.text_anchor,
16645 text.clone(),
16646 )
16647 })
16648 .collect::<Vec<_>>();
16649
16650 edit_preview.highlight_edits(current_snapshot, &edits, include_deletions, cx)
16651}
16652
16653pub fn highlight_diagnostic_message(
16654 diagnostic: &Diagnostic,
16655 mut max_message_rows: Option<u8>,
16656) -> (SharedString, Vec<Range<usize>>) {
16657 let mut text_without_backticks = String::new();
16658 let mut code_ranges = Vec::new();
16659
16660 if let Some(source) = &diagnostic.source {
16661 text_without_backticks.push_str(source);
16662 code_ranges.push(0..source.len());
16663 text_without_backticks.push_str(": ");
16664 }
16665
16666 let mut prev_offset = 0;
16667 let mut in_code_block = false;
16668 let has_row_limit = max_message_rows.is_some();
16669 let mut newline_indices = diagnostic
16670 .message
16671 .match_indices('\n')
16672 .filter(|_| has_row_limit)
16673 .map(|(ix, _)| ix)
16674 .fuse()
16675 .peekable();
16676
16677 for (quote_ix, _) in diagnostic
16678 .message
16679 .match_indices('`')
16680 .chain([(diagnostic.message.len(), "")])
16681 {
16682 let mut first_newline_ix = None;
16683 let mut last_newline_ix = None;
16684 while let Some(newline_ix) = newline_indices.peek() {
16685 if *newline_ix < quote_ix {
16686 if first_newline_ix.is_none() {
16687 first_newline_ix = Some(*newline_ix);
16688 }
16689 last_newline_ix = Some(*newline_ix);
16690
16691 if let Some(rows_left) = &mut max_message_rows {
16692 if *rows_left == 0 {
16693 break;
16694 } else {
16695 *rows_left -= 1;
16696 }
16697 }
16698 let _ = newline_indices.next();
16699 } else {
16700 break;
16701 }
16702 }
16703 let prev_len = text_without_backticks.len();
16704 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
16705 text_without_backticks.push_str(new_text);
16706 if in_code_block {
16707 code_ranges.push(prev_len..text_without_backticks.len());
16708 }
16709 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
16710 in_code_block = !in_code_block;
16711 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
16712 text_without_backticks.push_str("...");
16713 break;
16714 }
16715 }
16716
16717 (text_without_backticks.into(), code_ranges)
16718}
16719
16720fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
16721 match severity {
16722 DiagnosticSeverity::ERROR => colors.error,
16723 DiagnosticSeverity::WARNING => colors.warning,
16724 DiagnosticSeverity::INFORMATION => colors.info,
16725 DiagnosticSeverity::HINT => colors.info,
16726 _ => colors.ignored,
16727 }
16728}
16729
16730pub fn styled_runs_for_code_label<'a>(
16731 label: &'a CodeLabel,
16732 syntax_theme: &'a theme::SyntaxTheme,
16733) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
16734 let fade_out = HighlightStyle {
16735 fade_out: Some(0.35),
16736 ..Default::default()
16737 };
16738
16739 let mut prev_end = label.filter_range.end;
16740 label
16741 .runs
16742 .iter()
16743 .enumerate()
16744 .flat_map(move |(ix, (range, highlight_id))| {
16745 let style = if let Some(style) = highlight_id.style(syntax_theme) {
16746 style
16747 } else {
16748 return Default::default();
16749 };
16750 let mut muted_style = style;
16751 muted_style.highlight(fade_out);
16752
16753 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
16754 if range.start >= label.filter_range.end {
16755 if range.start > prev_end {
16756 runs.push((prev_end..range.start, fade_out));
16757 }
16758 runs.push((range.clone(), muted_style));
16759 } else if range.end <= label.filter_range.end {
16760 runs.push((range.clone(), style));
16761 } else {
16762 runs.push((range.start..label.filter_range.end, style));
16763 runs.push((label.filter_range.end..range.end, muted_style));
16764 }
16765 prev_end = cmp::max(prev_end, range.end);
16766
16767 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
16768 runs.push((prev_end..label.text.len(), fade_out));
16769 }
16770
16771 runs
16772 })
16773}
16774
16775pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
16776 let mut prev_index = 0;
16777 let mut prev_codepoint: Option<char> = None;
16778 text.char_indices()
16779 .chain([(text.len(), '\0')])
16780 .filter_map(move |(index, codepoint)| {
16781 let prev_codepoint = prev_codepoint.replace(codepoint)?;
16782 let is_boundary = index == text.len()
16783 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
16784 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
16785 if is_boundary {
16786 let chunk = &text[prev_index..index];
16787 prev_index = index;
16788 Some(chunk)
16789 } else {
16790 None
16791 }
16792 })
16793}
16794
16795pub trait RangeToAnchorExt: Sized {
16796 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
16797
16798 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
16799 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
16800 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
16801 }
16802}
16803
16804impl<T: ToOffset> RangeToAnchorExt for Range<T> {
16805 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
16806 let start_offset = self.start.to_offset(snapshot);
16807 let end_offset = self.end.to_offset(snapshot);
16808 if start_offset == end_offset {
16809 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
16810 } else {
16811 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
16812 }
16813 }
16814}
16815
16816pub trait RowExt {
16817 fn as_f32(&self) -> f32;
16818
16819 fn next_row(&self) -> Self;
16820
16821 fn previous_row(&self) -> Self;
16822
16823 fn minus(&self, other: Self) -> u32;
16824}
16825
16826impl RowExt for DisplayRow {
16827 fn as_f32(&self) -> f32 {
16828 self.0 as f32
16829 }
16830
16831 fn next_row(&self) -> Self {
16832 Self(self.0 + 1)
16833 }
16834
16835 fn previous_row(&self) -> Self {
16836 Self(self.0.saturating_sub(1))
16837 }
16838
16839 fn minus(&self, other: Self) -> u32 {
16840 self.0 - other.0
16841 }
16842}
16843
16844impl RowExt for MultiBufferRow {
16845 fn as_f32(&self) -> f32 {
16846 self.0 as f32
16847 }
16848
16849 fn next_row(&self) -> Self {
16850 Self(self.0 + 1)
16851 }
16852
16853 fn previous_row(&self) -> Self {
16854 Self(self.0.saturating_sub(1))
16855 }
16856
16857 fn minus(&self, other: Self) -> u32 {
16858 self.0 - other.0
16859 }
16860}
16861
16862trait RowRangeExt {
16863 type Row;
16864
16865 fn len(&self) -> usize;
16866
16867 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
16868}
16869
16870impl RowRangeExt for Range<MultiBufferRow> {
16871 type Row = MultiBufferRow;
16872
16873 fn len(&self) -> usize {
16874 (self.end.0 - self.start.0) as usize
16875 }
16876
16877 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
16878 (self.start.0..self.end.0).map(MultiBufferRow)
16879 }
16880}
16881
16882impl RowRangeExt for Range<DisplayRow> {
16883 type Row = DisplayRow;
16884
16885 fn len(&self) -> usize {
16886 (self.end.0 - self.start.0) as usize
16887 }
16888
16889 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
16890 (self.start.0..self.end.0).map(DisplayRow)
16891 }
16892}
16893
16894/// If select range has more than one line, we
16895/// just point the cursor to range.start.
16896fn collapse_multiline_range(range: Range<Point>) -> Range<Point> {
16897 if range.start.row == range.end.row {
16898 range
16899 } else {
16900 range.start..range.start
16901 }
16902}
16903pub struct KillRing(ClipboardItem);
16904impl Global for KillRing {}
16905
16906const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
16907
16908fn all_edits_insertions_or_deletions(
16909 edits: &Vec<(Range<Anchor>, String)>,
16910 snapshot: &MultiBufferSnapshot,
16911) -> bool {
16912 let mut all_insertions = true;
16913 let mut all_deletions = true;
16914
16915 for (range, new_text) in edits.iter() {
16916 let range_is_empty = range.to_offset(&snapshot).is_empty();
16917 let text_is_empty = new_text.is_empty();
16918
16919 if range_is_empty != text_is_empty {
16920 if range_is_empty {
16921 all_deletions = false;
16922 } else {
16923 all_insertions = false;
16924 }
16925 } else {
16926 return false;
16927 }
16928
16929 if !all_insertions && !all_deletions {
16930 return false;
16931 }
16932 }
16933 all_insertions || all_deletions
16934}