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 it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod git;
23mod highlight_matching_bracket;
24mod hover_popover;
25pub mod items;
26mod link_go_to_definition;
27mod mouse_context_menu;
28pub mod movement;
29mod persistence;
30mod rust_analyzer_ext;
31pub mod scroll;
32mod selections_collection;
33
34#[cfg(test)]
35mod editor_tests;
36#[cfg(any(test, feature = "test-support"))]
37pub mod test;
38use ::git::diff::DiffHunk;
39pub(crate) use actions::*;
40use aho_corasick::AhoCorasick;
41use anyhow::{anyhow, Context as _, Result};
42use blink_manager::BlinkManager;
43use client::{Collaborator, ParticipantIndex};
44use clock::ReplicaId;
45use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
46use convert_case::{Case, Casing};
47use copilot::Copilot;
48pub use display_map::DisplayPoint;
49use display_map::*;
50pub use editor_settings::EditorSettings;
51use element::LineWithInvisibles;
52pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
53use futures::FutureExt;
54use fuzzy::{StringMatch, StringMatchCandidate};
55use git::diff_hunk_to_display;
56use gpui::{
57 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
58 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
59 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontStyle, FontWeight,
60 HighlightStyle, Hsla, InputHandler, InteractiveText, KeyContext, Model, MouseButton,
61 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
62 UniformListScrollHandle, View, ViewContext, VisualContext, WeakView, WhiteSpace, WindowContext,
63};
64use highlight_matching_bracket::refresh_matching_bracket_highlights;
65use hover_popover::{hide_hover, HoverState};
66use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
67pub use items::MAX_TAB_TITLE_LEN;
68use itertools::Itertools;
69use language::{char_kind, CharKind};
70use language::{
71 language_settings::{self, all_language_settings, InlayHintSettings},
72 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
73 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
74 Language, LanguageServerName, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
75};
76
77use link_go_to_definition::{GoToDefinitionLink, InlayHighlight, LinkGoToDefinitionState};
78use lsp::{DiagnosticSeverity, LanguageServerId};
79use mouse_context_menu::MouseContextMenu;
80use movement::TextLayoutDetails;
81use multi_buffer::ToOffsetUtf16;
82pub use multi_buffer::{
83 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
84 ToPoint,
85};
86use ordered_float::OrderedFloat;
87use parking_lot::RwLock;
88use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
89use rand::prelude::*;
90use rpc::proto::*;
91use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
92use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
93use serde::{Deserialize, Serialize};
94use settings::{Settings, SettingsStore};
95use smallvec::SmallVec;
96use snippet::Snippet;
97use std::{
98 any::TypeId,
99 borrow::Cow,
100 cmp::{self, Ordering, Reverse},
101 mem,
102 num::NonZeroU32,
103 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
104 path::Path,
105 sync::Arc,
106 sync::Weak,
107 time::{Duration, Instant},
108};
109pub use sum_tree::Bias;
110use sum_tree::TreeMap;
111use text::{OffsetUtf16, Rope};
112use theme::{
113 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
114 ThemeColors, ThemeSettings,
115};
116use ui::{
117 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
118 Tooltip,
119};
120use util::{post_inc, RangeExt, ResultExt, TryFutureExt};
121use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
122
123const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
124const MAX_LINE_LEN: usize = 1024;
125const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
126const MAX_SELECTION_HISTORY_LEN: usize = 1024;
127const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
128#[doc(hidden)]
129pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
130#[doc(hidden)]
131pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
132
133pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
134
135pub fn render_parsed_markdown(
136 element_id: impl Into<ElementId>,
137 parsed: &language::ParsedMarkdown,
138 editor_style: &EditorStyle,
139 workspace: Option<WeakView<Workspace>>,
140 cx: &mut ViewContext<Editor>,
141) -> InteractiveText {
142 let code_span_background_color = cx
143 .theme()
144 .colors()
145 .editor_document_highlight_read_background;
146
147 let highlights = gpui::combine_highlights(
148 parsed.highlights.iter().filter_map(|(range, highlight)| {
149 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
150 Some((range.clone(), highlight))
151 }),
152 parsed
153 .regions
154 .iter()
155 .zip(&parsed.region_ranges)
156 .filter_map(|(region, range)| {
157 if region.code {
158 Some((
159 range.clone(),
160 HighlightStyle {
161 background_color: Some(code_span_background_color),
162 ..Default::default()
163 },
164 ))
165 } else {
166 None
167 }
168 }),
169 );
170
171 let mut links = Vec::new();
172 let mut link_ranges = Vec::new();
173 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
174 if let Some(link) = region.link.clone() {
175 links.push(link);
176 link_ranges.push(range.clone());
177 }
178 }
179
180 InteractiveText::new(
181 element_id,
182 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
183 )
184 .on_click(link_ranges, move |clicked_range_ix, cx| {
185 match &links[clicked_range_ix] {
186 markdown::Link::Web { url } => cx.open_url(url),
187 markdown::Link::Path { path } => {
188 if let Some(workspace) = &workspace {
189 _ = workspace.update(cx, |workspace, cx| {
190 workspace.open_abs_path(path.clone(), false, cx).detach();
191 });
192 }
193 }
194 }
195 })
196}
197
198#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
199pub(crate) enum InlayId {
200 Suggestion(usize),
201 Hint(usize),
202}
203
204impl InlayId {
205 fn id(&self) -> usize {
206 match self {
207 Self::Suggestion(id) => *id,
208 Self::Hint(id) => *id,
209 }
210 }
211}
212
213enum DocumentHighlightRead {}
214enum DocumentHighlightWrite {}
215enum InputComposition {}
216
217#[derive(Copy, Clone, PartialEq, Eq)]
218pub enum Direction {
219 Prev,
220 Next,
221}
222
223pub fn init_settings(cx: &mut AppContext) {
224 EditorSettings::register(cx);
225}
226
227pub fn init(cx: &mut AppContext) {
228 init_settings(cx);
229
230 workspace::register_project_item::<Editor>(cx);
231 workspace::register_followable_item::<Editor>(cx);
232 workspace::register_deserializable_item::<Editor>(cx);
233 cx.observe_new_views(
234 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
235 workspace.register_action(Editor::new_file);
236 workspace.register_action(Editor::new_file_in_direction);
237 },
238 )
239 .detach();
240
241 cx.on_action(move |_: &workspace::NewFile, cx| {
242 let app_state = cx.global::<Weak<workspace::AppState>>();
243 if let Some(app_state) = app_state.upgrade() {
244 workspace::open_new(&app_state, cx, |workspace, cx| {
245 Editor::new_file(workspace, &Default::default(), cx)
246 })
247 .detach();
248 }
249 });
250 cx.on_action(move |_: &workspace::NewWindow, cx| {
251 let app_state = cx.global::<Weak<workspace::AppState>>();
252 if let Some(app_state) = app_state.upgrade() {
253 workspace::open_new(&app_state, cx, |workspace, cx| {
254 Editor::new_file(workspace, &Default::default(), cx)
255 })
256 .detach();
257 }
258 });
259}
260
261trait InvalidationRegion {
262 fn ranges(&self) -> &[Range<Anchor>];
263}
264
265#[derive(Clone, Debug, PartialEq)]
266pub enum SelectPhase {
267 Begin {
268 position: DisplayPoint,
269 add: bool,
270 click_count: usize,
271 },
272 BeginColumnar {
273 position: DisplayPoint,
274 goal_column: u32,
275 },
276 Extend {
277 position: DisplayPoint,
278 click_count: usize,
279 },
280 Update {
281 position: DisplayPoint,
282 goal_column: u32,
283 scroll_position: gpui::Point<f32>,
284 },
285 End,
286}
287
288#[derive(Clone, Debug)]
289pub(crate) enum SelectMode {
290 Character,
291 Word(Range<Anchor>),
292 Line(Range<Anchor>),
293 All,
294}
295
296#[derive(Copy, Clone, PartialEq, Eq, Debug)]
297pub enum EditorMode {
298 SingleLine,
299 AutoHeight { max_lines: usize },
300 Full,
301}
302
303#[derive(Clone, Debug)]
304pub enum SoftWrap {
305 None,
306 EditorWidth,
307 Column(u32),
308}
309
310#[derive(Clone)]
311pub struct EditorStyle {
312 pub background: Hsla,
313 pub local_player: PlayerColor,
314 pub text: TextStyle,
315 pub scrollbar_width: Pixels,
316 pub syntax: Arc<SyntaxTheme>,
317 pub status: StatusColors,
318 pub inlays_style: HighlightStyle,
319 pub suggestions_style: HighlightStyle,
320}
321
322impl Default for EditorStyle {
323 fn default() -> Self {
324 Self {
325 background: Hsla::default(),
326 local_player: PlayerColor::default(),
327 text: TextStyle::default(),
328 scrollbar_width: Pixels::default(),
329 syntax: Default::default(),
330 // HACK: Status colors don't have a real default.
331 // We should look into removing the status colors from the editor
332 // style and retrieve them directly from the theme.
333 status: StatusColors::dark(),
334 inlays_style: HighlightStyle::default(),
335 suggestions_style: HighlightStyle::default(),
336 }
337 }
338}
339
340type CompletionId = usize;
341
342// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
343// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
344
345type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
346type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
347
348pub struct Editor {
349 handle: WeakView<Self>,
350 focus_handle: FocusHandle,
351 buffer: Model<MultiBuffer>,
352 display_map: Model<DisplayMap>,
353 pub selections: SelectionsCollection,
354 pub scroll_manager: ScrollManager,
355 columnar_selection_tail: Option<Anchor>,
356 add_selections_state: Option<AddSelectionsState>,
357 select_next_state: Option<SelectNextState>,
358 select_prev_state: Option<SelectNextState>,
359 selection_history: SelectionHistory,
360 autoclose_regions: Vec<AutocloseRegion>,
361 snippet_stack: InvalidationStack<SnippetState>,
362 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
363 ime_transaction: Option<TransactionId>,
364 active_diagnostics: Option<ActiveDiagnosticGroup>,
365 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
366 project: Option<Model<Project>>,
367 completion_provider: Option<Box<dyn CompletionProvider>>,
368 collaboration_hub: Option<Box<dyn CollaborationHub>>,
369 blink_manager: Model<BlinkManager>,
370 show_cursor_names: bool,
371 hovered_cursor: Option<HoveredCursor>,
372 pub show_local_selections: bool,
373 mode: EditorMode,
374 show_gutter: bool,
375 show_wrap_guides: Option<bool>,
376 placeholder_text: Option<Arc<str>>,
377 highlighted_rows: Option<Range<u32>>,
378 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
379 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
380 nav_history: Option<ItemNavHistory>,
381 context_menu: RwLock<Option<ContextMenu>>,
382 mouse_context_menu: Option<MouseContextMenu>,
383 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
384 next_completion_id: CompletionId,
385 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
386 code_actions_task: Option<Task<()>>,
387 document_highlights_task: Option<Task<()>>,
388 pending_rename: Option<RenameState>,
389 searchable: bool,
390 cursor_shape: CursorShape,
391 collapse_matches: bool,
392 autoindent_mode: Option<AutoindentMode>,
393 workspace: Option<(WeakView<Workspace>, i64)>,
394 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
395 input_enabled: bool,
396 read_only: bool,
397 leader_peer_id: Option<PeerId>,
398 remote_id: Option<ViewId>,
399 hover_state: HoverState,
400 gutter_hovered: bool,
401 link_go_to_definition_state: LinkGoToDefinitionState,
402 copilot_state: CopilotState,
403 inlay_hint_cache: InlayHintCache,
404 next_inlay_id: usize,
405 _subscriptions: Vec<Subscription>,
406 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
407 gutter_width: Pixels,
408 style: Option<EditorStyle>,
409 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
410 show_copilot_suggestions: bool,
411 use_autoclose: bool,
412}
413
414pub struct EditorSnapshot {
415 pub mode: EditorMode,
416 pub show_gutter: bool,
417 pub display_snapshot: DisplaySnapshot,
418 pub placeholder_text: Option<Arc<str>>,
419 is_focused: bool,
420 scroll_anchor: ScrollAnchor,
421 ongoing_scroll: OngoingScroll,
422}
423
424#[derive(Debug)]
425pub struct RemoteSelection {
426 pub replica_id: ReplicaId,
427 pub selection: Selection<Anchor>,
428 pub cursor_shape: CursorShape,
429 pub peer_id: PeerId,
430 pub line_mode: bool,
431 pub participant_index: Option<ParticipantIndex>,
432 pub user_name: Option<SharedString>,
433}
434
435#[derive(Clone, Debug)]
436struct SelectionHistoryEntry {
437 selections: Arc<[Selection<Anchor>]>,
438 select_next_state: Option<SelectNextState>,
439 select_prev_state: Option<SelectNextState>,
440 add_selections_state: Option<AddSelectionsState>,
441}
442
443enum SelectionHistoryMode {
444 Normal,
445 Undoing,
446 Redoing,
447}
448
449struct HoveredCursor {
450 replica_id: u16,
451 selection_id: usize,
452}
453
454impl Default for SelectionHistoryMode {
455 fn default() -> Self {
456 Self::Normal
457 }
458}
459
460#[derive(Default)]
461struct SelectionHistory {
462 #[allow(clippy::type_complexity)]
463 selections_by_transaction:
464 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
465 mode: SelectionHistoryMode,
466 undo_stack: VecDeque<SelectionHistoryEntry>,
467 redo_stack: VecDeque<SelectionHistoryEntry>,
468}
469
470impl SelectionHistory {
471 fn insert_transaction(
472 &mut self,
473 transaction_id: TransactionId,
474 selections: Arc<[Selection<Anchor>]>,
475 ) {
476 self.selections_by_transaction
477 .insert(transaction_id, (selections, None));
478 }
479
480 #[allow(clippy::type_complexity)]
481 fn transaction(
482 &self,
483 transaction_id: TransactionId,
484 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
485 self.selections_by_transaction.get(&transaction_id)
486 }
487
488 #[allow(clippy::type_complexity)]
489 fn transaction_mut(
490 &mut self,
491 transaction_id: TransactionId,
492 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
493 self.selections_by_transaction.get_mut(&transaction_id)
494 }
495
496 fn push(&mut self, entry: SelectionHistoryEntry) {
497 if !entry.selections.is_empty() {
498 match self.mode {
499 SelectionHistoryMode::Normal => {
500 self.push_undo(entry);
501 self.redo_stack.clear();
502 }
503 SelectionHistoryMode::Undoing => self.push_redo(entry),
504 SelectionHistoryMode::Redoing => self.push_undo(entry),
505 }
506 }
507 }
508
509 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
510 if self
511 .undo_stack
512 .back()
513 .map_or(true, |e| e.selections != entry.selections)
514 {
515 self.undo_stack.push_back(entry);
516 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
517 self.undo_stack.pop_front();
518 }
519 }
520 }
521
522 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
523 if self
524 .redo_stack
525 .back()
526 .map_or(true, |e| e.selections != entry.selections)
527 {
528 self.redo_stack.push_back(entry);
529 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
530 self.redo_stack.pop_front();
531 }
532 }
533 }
534}
535
536#[derive(Clone, Debug)]
537struct AddSelectionsState {
538 above: bool,
539 stack: Vec<usize>,
540}
541
542#[derive(Clone)]
543struct SelectNextState {
544 query: AhoCorasick,
545 wordwise: bool,
546 done: bool,
547}
548
549impl std::fmt::Debug for SelectNextState {
550 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
551 f.debug_struct(std::any::type_name::<Self>())
552 .field("wordwise", &self.wordwise)
553 .field("done", &self.done)
554 .finish()
555 }
556}
557
558#[derive(Debug)]
559struct AutocloseRegion {
560 selection_id: usize,
561 range: Range<Anchor>,
562 pair: BracketPair,
563}
564
565#[derive(Debug)]
566struct SnippetState {
567 ranges: Vec<Vec<Range<Anchor>>>,
568 active_index: usize,
569}
570
571#[doc(hidden)]
572pub struct RenameState {
573 pub range: Range<Anchor>,
574 pub old_name: Arc<str>,
575 pub editor: View<Editor>,
576 block_id: BlockId,
577}
578
579struct InvalidationStack<T>(Vec<T>);
580
581enum ContextMenu {
582 Completions(CompletionsMenu),
583 CodeActions(CodeActionsMenu),
584}
585
586impl ContextMenu {
587 fn select_first(
588 &mut self,
589 project: Option<&Model<Project>>,
590 cx: &mut ViewContext<Editor>,
591 ) -> bool {
592 if self.visible() {
593 match self {
594 ContextMenu::Completions(menu) => menu.select_first(project, cx),
595 ContextMenu::CodeActions(menu) => menu.select_first(cx),
596 }
597 true
598 } else {
599 false
600 }
601 }
602
603 fn select_prev(
604 &mut self,
605 project: Option<&Model<Project>>,
606 cx: &mut ViewContext<Editor>,
607 ) -> bool {
608 if self.visible() {
609 match self {
610 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
611 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
612 }
613 true
614 } else {
615 false
616 }
617 }
618
619 fn select_next(
620 &mut self,
621 project: Option<&Model<Project>>,
622 cx: &mut ViewContext<Editor>,
623 ) -> bool {
624 if self.visible() {
625 match self {
626 ContextMenu::Completions(menu) => menu.select_next(project, cx),
627 ContextMenu::CodeActions(menu) => menu.select_next(cx),
628 }
629 true
630 } else {
631 false
632 }
633 }
634
635 fn select_last(
636 &mut self,
637 project: Option<&Model<Project>>,
638 cx: &mut ViewContext<Editor>,
639 ) -> bool {
640 if self.visible() {
641 match self {
642 ContextMenu::Completions(menu) => menu.select_last(project, cx),
643 ContextMenu::CodeActions(menu) => menu.select_last(cx),
644 }
645 true
646 } else {
647 false
648 }
649 }
650
651 fn visible(&self) -> bool {
652 match self {
653 ContextMenu::Completions(menu) => menu.visible(),
654 ContextMenu::CodeActions(menu) => menu.visible(),
655 }
656 }
657
658 fn render(
659 &self,
660 cursor_position: DisplayPoint,
661 style: &EditorStyle,
662 max_height: Pixels,
663 workspace: Option<WeakView<Workspace>>,
664 cx: &mut ViewContext<Editor>,
665 ) -> (DisplayPoint, AnyElement) {
666 match self {
667 ContextMenu::Completions(menu) => (
668 cursor_position,
669 menu.render(style, max_height, workspace, cx),
670 ),
671 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
672 }
673 }
674}
675
676#[derive(Clone)]
677struct CompletionsMenu {
678 id: CompletionId,
679 initial_position: Anchor,
680 buffer: Model<Buffer>,
681 completions: Arc<RwLock<Box<[Completion]>>>,
682 match_candidates: Arc<[StringMatchCandidate]>,
683 matches: Arc<[StringMatch]>,
684 selected_item: usize,
685 scroll_handle: UniformListScrollHandle,
686}
687
688impl CompletionsMenu {
689 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
690 self.selected_item = 0;
691 self.scroll_handle.scroll_to_item(self.selected_item);
692 self.attempt_resolve_selected_completion_documentation(project, cx);
693 cx.notify();
694 }
695
696 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
697 if self.selected_item > 0 {
698 self.selected_item -= 1;
699 } else {
700 self.selected_item = self.matches.len() - 1;
701 }
702 self.scroll_handle.scroll_to_item(self.selected_item);
703 self.attempt_resolve_selected_completion_documentation(project, cx);
704 cx.notify();
705 }
706
707 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
708 if self.selected_item + 1 < self.matches.len() {
709 self.selected_item += 1;
710 } else {
711 self.selected_item = 0;
712 }
713 self.scroll_handle.scroll_to_item(self.selected_item);
714 self.attempt_resolve_selected_completion_documentation(project, cx);
715 cx.notify();
716 }
717
718 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
719 self.selected_item = self.matches.len() - 1;
720 self.scroll_handle.scroll_to_item(self.selected_item);
721 self.attempt_resolve_selected_completion_documentation(project, cx);
722 cx.notify();
723 }
724
725 fn pre_resolve_completion_documentation(
726 &self,
727 editor: &Editor,
728 cx: &mut ViewContext<Editor>,
729 ) -> Option<Task<()>> {
730 let settings = EditorSettings::get_global(cx);
731 if !settings.show_completion_documentation {
732 return None;
733 }
734
735 let Some(provider) = editor.completion_provider.as_ref() else {
736 return None;
737 };
738
739 let resolve_task = provider.resolve_completions(
740 self.matches.iter().map(|m| m.candidate_id).collect(),
741 self.completions.clone(),
742 cx,
743 );
744
745 return Some(cx.spawn(move |this, mut cx| async move {
746 if let Some(true) = resolve_task.await.log_err() {
747 this.update(&mut cx, |_, cx| cx.notify()).ok();
748 }
749 }));
750 }
751
752 fn attempt_resolve_selected_completion_documentation(
753 &mut self,
754 project: Option<&Model<Project>>,
755 cx: &mut ViewContext<Editor>,
756 ) {
757 let settings = EditorSettings::get_global(cx);
758 if !settings.show_completion_documentation {
759 return;
760 }
761
762 let completion_index = self.matches[self.selected_item].candidate_id;
763 let Some(project) = project else {
764 return;
765 };
766
767 let resolve_task = project.update(cx, |project, cx| {
768 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
769 });
770 cx.spawn(move |this, mut cx| async move {
771 if let Some(true) = resolve_task.await.log_err() {
772 this.update(&mut cx, |_, cx| cx.notify()).ok();
773 }
774 })
775 .detach();
776 }
777
778 fn visible(&self) -> bool {
779 !self.matches.is_empty()
780 }
781
782 fn render(
783 &self,
784 style: &EditorStyle,
785 max_height: Pixels,
786 workspace: Option<WeakView<Workspace>>,
787 cx: &mut ViewContext<Editor>,
788 ) -> AnyElement {
789 let settings = EditorSettings::get_global(cx);
790 let show_completion_documentation = settings.show_completion_documentation;
791
792 let widest_completion_ix = self
793 .matches
794 .iter()
795 .enumerate()
796 .max_by_key(|(_, mat)| {
797 let completions = self.completions.read();
798 let completion = &completions[mat.candidate_id];
799 let documentation = &completion.documentation;
800
801 let mut len = completion.label.text.chars().count();
802 if let Some(Documentation::SingleLine(text)) = documentation {
803 if show_completion_documentation {
804 len += text.chars().count();
805 }
806 }
807
808 len
809 })
810 .map(|(ix, _)| ix);
811
812 let completions = self.completions.clone();
813 let matches = self.matches.clone();
814 let selected_item = self.selected_item;
815 let style = style.clone();
816
817 let multiline_docs = {
818 let mat = &self.matches[selected_item];
819 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
820 Some(Documentation::MultiLinePlainText(text)) => {
821 Some(div().child(SharedString::from(text.clone())))
822 }
823 Some(Documentation::MultiLineMarkdown(parsed)) => Some(div().child(
824 render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
825 )),
826 _ => None,
827 };
828 multiline_docs.map(|div| {
829 div.id("multiline_docs")
830 .max_h(max_height)
831 .flex_1()
832 .px_1p5()
833 .py_1()
834 .min_w(px(260.))
835 .max_w(px(640.))
836 .w(px(500.))
837 .overflow_y_scroll()
838 // Prevent a mouse down on documentation from being propagated to the editor,
839 // because that would move the cursor.
840 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
841 })
842 };
843
844 let list = uniform_list(
845 cx.view().clone(),
846 "completions",
847 matches.len(),
848 move |_editor, range, cx| {
849 let start_ix = range.start;
850 let completions_guard = completions.read();
851
852 matches[range]
853 .iter()
854 .enumerate()
855 .map(|(ix, mat)| {
856 let item_ix = start_ix + ix;
857 let candidate_id = mat.candidate_id;
858 let completion = &completions_guard[candidate_id];
859
860 let documentation = if show_completion_documentation {
861 &completion.documentation
862 } else {
863 &None
864 };
865
866 let highlights = gpui::combine_highlights(
867 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
868 styled_runs_for_code_label(&completion.label, &style.syntax).map(
869 |(range, mut highlight)| {
870 // Ignore font weight for syntax highlighting, as we'll use it
871 // for fuzzy matches.
872 highlight.font_weight = None;
873 (range, highlight)
874 },
875 ),
876 );
877 let completion_label = StyledText::new(completion.label.text.clone())
878 .with_highlights(&style.text, highlights);
879 let documentation_label =
880 if let Some(Documentation::SingleLine(text)) = documentation {
881 if text.trim().is_empty() {
882 None
883 } else {
884 Some(
885 h_flex().ml_4().child(
886 Label::new(text.clone())
887 .size(LabelSize::Small)
888 .color(Color::Muted),
889 ),
890 )
891 }
892 } else {
893 None
894 };
895
896 div().min_w(px(220.)).max_w(px(540.)).child(
897 ListItem::new(mat.candidate_id)
898 .inset(true)
899 .selected(item_ix == selected_item)
900 .on_click(cx.listener(move |editor, _event, cx| {
901 cx.stop_propagation();
902 editor
903 .confirm_completion(
904 &ConfirmCompletion {
905 item_ix: Some(item_ix),
906 },
907 cx,
908 )
909 .map(|task| task.detach_and_log_err(cx));
910 }))
911 .child(h_flex().overflow_hidden().child(completion_label))
912 .end_slot::<Div>(documentation_label),
913 )
914 })
915 .collect()
916 },
917 )
918 .max_h(max_height)
919 .track_scroll(self.scroll_handle.clone())
920 .with_width_from_item(widest_completion_ix);
921
922 Popover::new()
923 .child(list)
924 .when_some(multiline_docs, |popover, multiline_docs| {
925 popover.aside(multiline_docs)
926 })
927 .into_any_element()
928 }
929
930 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
931 let mut matches = if let Some(query) = query {
932 fuzzy::match_strings(
933 &self.match_candidates,
934 query,
935 query.chars().any(|c| c.is_uppercase()),
936 100,
937 &Default::default(),
938 executor,
939 )
940 .await
941 } else {
942 self.match_candidates
943 .iter()
944 .enumerate()
945 .map(|(candidate_id, candidate)| StringMatch {
946 candidate_id,
947 score: Default::default(),
948 positions: Default::default(),
949 string: candidate.string.clone(),
950 })
951 .collect()
952 };
953
954 // Remove all candidates where the query's start does not match the start of any word in the candidate
955 if let Some(query) = query {
956 if let Some(query_start) = query.chars().next() {
957 matches.retain(|string_match| {
958 split_words(&string_match.string).any(|word| {
959 // Check that the first codepoint of the word as lowercase matches the first
960 // codepoint of the query as lowercase
961 word.chars()
962 .flat_map(|codepoint| codepoint.to_lowercase())
963 .zip(query_start.to_lowercase())
964 .all(|(word_cp, query_cp)| word_cp == query_cp)
965 })
966 });
967 }
968 }
969
970 let completions = self.completions.read();
971 matches.sort_unstable_by_key(|mat| {
972 let completion = &completions[mat.candidate_id];
973 (
974 completion.lsp_completion.sort_text.as_ref(),
975 Reverse(OrderedFloat(mat.score)),
976 completion.sort_key(),
977 )
978 });
979
980 for mat in &mut matches {
981 let completion = &completions[mat.candidate_id];
982 mat.string = completion.label.text.clone();
983 for position in &mut mat.positions {
984 *position += completion.label.filter_range.start;
985 }
986 }
987 drop(completions);
988
989 self.matches = matches.into();
990 self.selected_item = 0;
991 }
992}
993
994#[derive(Clone)]
995struct CodeActionsMenu {
996 actions: Arc<[CodeAction]>,
997 buffer: Model<Buffer>,
998 selected_item: usize,
999 scroll_handle: UniformListScrollHandle,
1000 deployed_from_indicator: bool,
1001}
1002
1003impl CodeActionsMenu {
1004 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1005 self.selected_item = 0;
1006 self.scroll_handle.scroll_to_item(self.selected_item);
1007 cx.notify()
1008 }
1009
1010 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1011 if self.selected_item > 0 {
1012 self.selected_item -= 1;
1013 } else {
1014 self.selected_item = self.actions.len() - 1;
1015 }
1016 self.scroll_handle.scroll_to_item(self.selected_item);
1017 cx.notify();
1018 }
1019
1020 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1021 if self.selected_item + 1 < self.actions.len() {
1022 self.selected_item += 1;
1023 } else {
1024 self.selected_item = 0;
1025 }
1026 self.scroll_handle.scroll_to_item(self.selected_item);
1027 cx.notify();
1028 }
1029
1030 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1031 self.selected_item = self.actions.len() - 1;
1032 self.scroll_handle.scroll_to_item(self.selected_item);
1033 cx.notify()
1034 }
1035
1036 fn visible(&self) -> bool {
1037 !self.actions.is_empty()
1038 }
1039
1040 fn render(
1041 &self,
1042 mut cursor_position: DisplayPoint,
1043 _style: &EditorStyle,
1044 max_height: Pixels,
1045 cx: &mut ViewContext<Editor>,
1046 ) -> (DisplayPoint, AnyElement) {
1047 let actions = self.actions.clone();
1048 let selected_item = self.selected_item;
1049
1050 let element = uniform_list(
1051 cx.view().clone(),
1052 "code_actions_menu",
1053 self.actions.len(),
1054 move |_this, range, cx| {
1055 actions[range.clone()]
1056 .iter()
1057 .enumerate()
1058 .map(|(ix, action)| {
1059 let item_ix = range.start + ix;
1060 let selected = selected_item == item_ix;
1061 let colors = cx.theme().colors();
1062 div()
1063 .px_2()
1064 .text_color(colors.text)
1065 .when(selected, |style| {
1066 style
1067 .bg(colors.element_active)
1068 .text_color(colors.text_accent)
1069 })
1070 .hover(|style| {
1071 style
1072 .bg(colors.element_hover)
1073 .text_color(colors.text_accent)
1074 })
1075 .on_mouse_down(
1076 MouseButton::Left,
1077 cx.listener(move |editor, _, cx| {
1078 cx.stop_propagation();
1079 editor
1080 .confirm_code_action(
1081 &ConfirmCodeAction {
1082 item_ix: Some(item_ix),
1083 },
1084 cx,
1085 )
1086 .map(|task| task.detach_and_log_err(cx));
1087 }),
1088 )
1089 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1090 .child(SharedString::from(action.lsp_action.title.clone()))
1091 })
1092 .collect()
1093 },
1094 )
1095 .elevation_1(cx)
1096 .px_2()
1097 .py_1()
1098 .max_h(max_height)
1099 .track_scroll(self.scroll_handle.clone())
1100 .with_width_from_item(
1101 self.actions
1102 .iter()
1103 .enumerate()
1104 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1105 .map(|(ix, _)| ix),
1106 )
1107 .into_any_element();
1108
1109 if self.deployed_from_indicator {
1110 *cursor_position.column_mut() = 0;
1111 }
1112
1113 (cursor_position, element)
1114 }
1115}
1116
1117pub(crate) struct CopilotState {
1118 excerpt_id: Option<ExcerptId>,
1119 pending_refresh: Task<Option<()>>,
1120 pending_cycling_refresh: Task<Option<()>>,
1121 cycled: bool,
1122 completions: Vec<copilot::Completion>,
1123 active_completion_index: usize,
1124 suggestion: Option<Inlay>,
1125}
1126
1127impl Default for CopilotState {
1128 fn default() -> Self {
1129 Self {
1130 excerpt_id: None,
1131 pending_cycling_refresh: Task::ready(Some(())),
1132 pending_refresh: Task::ready(Some(())),
1133 completions: Default::default(),
1134 active_completion_index: 0,
1135 cycled: false,
1136 suggestion: None,
1137 }
1138 }
1139}
1140
1141impl CopilotState {
1142 fn active_completion(&self) -> Option<&copilot::Completion> {
1143 self.completions.get(self.active_completion_index)
1144 }
1145
1146 fn text_for_active_completion(
1147 &self,
1148 cursor: Anchor,
1149 buffer: &MultiBufferSnapshot,
1150 ) -> Option<&str> {
1151 use language::ToOffset as _;
1152
1153 let completion = self.active_completion()?;
1154 let excerpt_id = self.excerpt_id?;
1155 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1156 if excerpt_id != cursor.excerpt_id
1157 || !completion.range.start.is_valid(completion_buffer)
1158 || !completion.range.end.is_valid(completion_buffer)
1159 {
1160 return None;
1161 }
1162
1163 let mut completion_range = completion.range.to_offset(&completion_buffer);
1164 let prefix_len = Self::common_prefix(
1165 completion_buffer.chars_for_range(completion_range.clone()),
1166 completion.text.chars(),
1167 );
1168 completion_range.start += prefix_len;
1169 let suffix_len = Self::common_prefix(
1170 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1171 completion.text[prefix_len..].chars().rev(),
1172 );
1173 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1174
1175 if completion_range.is_empty()
1176 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1177 {
1178 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1179 } else {
1180 None
1181 }
1182 }
1183
1184 fn cycle_completions(&mut self, direction: Direction) {
1185 match direction {
1186 Direction::Prev => {
1187 self.active_completion_index = if self.active_completion_index == 0 {
1188 self.completions.len().saturating_sub(1)
1189 } else {
1190 self.active_completion_index - 1
1191 };
1192 }
1193 Direction::Next => {
1194 if self.completions.len() == 0 {
1195 self.active_completion_index = 0
1196 } else {
1197 self.active_completion_index =
1198 (self.active_completion_index + 1) % self.completions.len();
1199 }
1200 }
1201 }
1202 }
1203
1204 fn push_completion(&mut self, new_completion: copilot::Completion) {
1205 for completion in &self.completions {
1206 if completion.text == new_completion.text && completion.range == new_completion.range {
1207 return;
1208 }
1209 }
1210 self.completions.push(new_completion);
1211 }
1212
1213 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1214 a.zip(b)
1215 .take_while(|(a, b)| a == b)
1216 .map(|(a, _)| a.len_utf8())
1217 .sum()
1218 }
1219}
1220
1221#[derive(Debug)]
1222struct ActiveDiagnosticGroup {
1223 primary_range: Range<Anchor>,
1224 primary_message: String,
1225 blocks: HashMap<BlockId, Diagnostic>,
1226 is_valid: bool,
1227}
1228
1229#[derive(Serialize, Deserialize)]
1230pub struct ClipboardSelection {
1231 pub len: usize,
1232 pub is_entire_line: bool,
1233 pub first_line_indent: u32,
1234}
1235
1236#[derive(Debug)]
1237pub(crate) struct NavigationData {
1238 cursor_anchor: Anchor,
1239 cursor_position: Point,
1240 scroll_anchor: ScrollAnchor,
1241 scroll_top_row: u32,
1242}
1243
1244enum GotoDefinitionKind {
1245 Symbol,
1246 Type,
1247}
1248
1249#[derive(Debug, Clone)]
1250enum InlayHintRefreshReason {
1251 Toggle(bool),
1252 SettingsChange(InlayHintSettings),
1253 NewLinesShown,
1254 BufferEdited(HashSet<Arc<Language>>),
1255 RefreshRequested,
1256 ExcerptsRemoved(Vec<ExcerptId>),
1257}
1258impl InlayHintRefreshReason {
1259 fn description(&self) -> &'static str {
1260 match self {
1261 Self::Toggle(_) => "toggle",
1262 Self::SettingsChange(_) => "settings change",
1263 Self::NewLinesShown => "new lines shown",
1264 Self::BufferEdited(_) => "buffer edited",
1265 Self::RefreshRequested => "refresh requested",
1266 Self::ExcerptsRemoved(_) => "excerpts removed",
1267 }
1268 }
1269}
1270
1271impl Editor {
1272 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1273 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1274 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1275 Self::new(EditorMode::SingleLine, buffer, None, cx)
1276 }
1277
1278 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1279 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1280 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1281 Self::new(EditorMode::Full, buffer, None, cx)
1282 }
1283
1284 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1285 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1286 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1287 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1288 }
1289
1290 pub fn for_buffer(
1291 buffer: Model<Buffer>,
1292 project: Option<Model<Project>>,
1293 cx: &mut ViewContext<Self>,
1294 ) -> Self {
1295 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1296 Self::new(EditorMode::Full, buffer, project, cx)
1297 }
1298
1299 pub fn for_multibuffer(
1300 buffer: Model<MultiBuffer>,
1301 project: Option<Model<Project>>,
1302 cx: &mut ViewContext<Self>,
1303 ) -> Self {
1304 Self::new(EditorMode::Full, buffer, project, cx)
1305 }
1306
1307 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1308 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1309 self.display_map.update(cx, |display_map, cx| {
1310 let snapshot = display_map.snapshot(cx);
1311 clone.display_map.update(cx, |display_map, cx| {
1312 display_map.set_state(&snapshot, cx);
1313 });
1314 });
1315 clone.selections.clone_state(&self.selections);
1316 clone.scroll_manager.clone_state(&self.scroll_manager);
1317 clone.searchable = self.searchable;
1318 clone
1319 }
1320
1321 fn new(
1322 mode: EditorMode,
1323 buffer: Model<MultiBuffer>,
1324 project: Option<Model<Project>>,
1325 cx: &mut ViewContext<Self>,
1326 ) -> Self {
1327 let style = cx.text_style();
1328 let font_size = style.font_size.to_pixels(cx.rem_size());
1329 let display_map = cx.new_model(|cx| {
1330 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1331 });
1332
1333 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1334
1335 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1336
1337 let soft_wrap_mode_override =
1338 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1339
1340 let mut project_subscriptions = Vec::new();
1341 if mode == EditorMode::Full {
1342 if let Some(project) = project.as_ref() {
1343 if buffer.read(cx).is_singleton() {
1344 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1345 cx.emit(EditorEvent::TitleChanged);
1346 }));
1347 }
1348 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1349 if let project::Event::RefreshInlayHints = event {
1350 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1351 };
1352 }));
1353 }
1354 }
1355
1356 let inlay_hint_settings = inlay_hint_settings(
1357 selections.newest_anchor().head(),
1358 &buffer.read(cx).snapshot(cx),
1359 cx,
1360 );
1361
1362 let focus_handle = cx.focus_handle();
1363 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1364 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1365
1366 let mut this = Self {
1367 handle: cx.view().downgrade(),
1368 focus_handle,
1369 buffer: buffer.clone(),
1370 display_map: display_map.clone(),
1371 selections,
1372 scroll_manager: ScrollManager::new(),
1373 columnar_selection_tail: None,
1374 add_selections_state: None,
1375 select_next_state: None,
1376 select_prev_state: None,
1377 selection_history: Default::default(),
1378 autoclose_regions: Default::default(),
1379 snippet_stack: Default::default(),
1380 select_larger_syntax_node_stack: Vec::new(),
1381 ime_transaction: Default::default(),
1382 active_diagnostics: None,
1383 soft_wrap_mode_override,
1384 completion_provider: project.clone().map(|project| Box::new(project) as _),
1385 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1386 project,
1387 blink_manager: blink_manager.clone(),
1388 show_local_selections: true,
1389 mode,
1390 show_gutter: mode == EditorMode::Full,
1391 show_wrap_guides: None,
1392 placeholder_text: None,
1393 highlighted_rows: None,
1394 background_highlights: Default::default(),
1395 inlay_background_highlights: Default::default(),
1396 nav_history: None,
1397 context_menu: RwLock::new(None),
1398 mouse_context_menu: None,
1399 completion_tasks: Default::default(),
1400 next_completion_id: 0,
1401 next_inlay_id: 0,
1402 available_code_actions: Default::default(),
1403 code_actions_task: Default::default(),
1404 document_highlights_task: Default::default(),
1405 pending_rename: Default::default(),
1406 searchable: true,
1407 cursor_shape: Default::default(),
1408 autoindent_mode: Some(AutoindentMode::EachLine),
1409 collapse_matches: false,
1410 workspace: None,
1411 keymap_context_layers: Default::default(),
1412 input_enabled: true,
1413 read_only: false,
1414 use_autoclose: true,
1415 leader_peer_id: None,
1416 remote_id: None,
1417 hover_state: Default::default(),
1418 link_go_to_definition_state: Default::default(),
1419 copilot_state: Default::default(),
1420 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1421 gutter_hovered: false,
1422 pixel_position_of_newest_cursor: None,
1423 gutter_width: Default::default(),
1424 style: None,
1425 show_cursor_names: false,
1426 hovered_cursor: Default::default(),
1427 editor_actions: Default::default(),
1428 show_copilot_suggestions: mode == EditorMode::Full,
1429 _subscriptions: vec![
1430 cx.observe(&buffer, Self::on_buffer_changed),
1431 cx.subscribe(&buffer, Self::on_buffer_event),
1432 cx.observe(&display_map, Self::on_display_map_changed),
1433 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1434 cx.observe_global::<SettingsStore>(Self::settings_changed),
1435 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1436 cx.observe_window_activation(|editor, cx| {
1437 let active = cx.is_window_active();
1438 editor.blink_manager.update(cx, |blink_manager, cx| {
1439 if active {
1440 blink_manager.enable(cx);
1441 } else {
1442 blink_manager.show_cursor(cx);
1443 blink_manager.disable(cx);
1444 }
1445 });
1446 }),
1447 ],
1448 };
1449
1450 this._subscriptions.extend(project_subscriptions);
1451
1452 this.end_selection(cx);
1453 this.scroll_manager.show_scrollbar(cx);
1454
1455 if mode == EditorMode::Full {
1456 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1457 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1458 }
1459
1460 this.report_editor_event("open", None, cx);
1461 this
1462 }
1463
1464 fn key_context(&self, cx: &AppContext) -> KeyContext {
1465 let mut key_context = KeyContext::default();
1466 key_context.add("Editor");
1467 let mode = match self.mode {
1468 EditorMode::SingleLine => "single_line",
1469 EditorMode::AutoHeight { .. } => "auto_height",
1470 EditorMode::Full => "full",
1471 };
1472 key_context.set("mode", mode);
1473 if self.pending_rename.is_some() {
1474 key_context.add("renaming");
1475 }
1476 if self.context_menu_visible() {
1477 match self.context_menu.read().as_ref() {
1478 Some(ContextMenu::Completions(_)) => {
1479 key_context.add("menu");
1480 key_context.add("showing_completions")
1481 }
1482 Some(ContextMenu::CodeActions(_)) => {
1483 key_context.add("menu");
1484 key_context.add("showing_code_actions")
1485 }
1486 None => {}
1487 }
1488 }
1489
1490 for layer in self.keymap_context_layers.values() {
1491 key_context.extend(layer);
1492 }
1493
1494 if let Some(extension) = self
1495 .buffer
1496 .read(cx)
1497 .as_singleton()
1498 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1499 {
1500 key_context.set("extension", extension.to_string());
1501 }
1502
1503 key_context
1504 }
1505
1506 pub fn new_file(
1507 workspace: &mut Workspace,
1508 _: &workspace::NewFile,
1509 cx: &mut ViewContext<Workspace>,
1510 ) {
1511 let project = workspace.project().clone();
1512 if project.read(cx).is_remote() {
1513 cx.propagate();
1514 } else if let Some(buffer) = project
1515 .update(cx, |project, cx| project.create_buffer("", None, cx))
1516 .log_err()
1517 {
1518 workspace.add_item(
1519 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1520 cx,
1521 );
1522 }
1523 }
1524
1525 pub fn new_file_in_direction(
1526 workspace: &mut Workspace,
1527 action: &workspace::NewFileInDirection,
1528 cx: &mut ViewContext<Workspace>,
1529 ) {
1530 let project = workspace.project().clone();
1531 if project.read(cx).is_remote() {
1532 cx.propagate();
1533 } else if let Some(buffer) = project
1534 .update(cx, |project, cx| project.create_buffer("", None, cx))
1535 .log_err()
1536 {
1537 workspace.split_item(
1538 action.0,
1539 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1540 cx,
1541 );
1542 }
1543 }
1544
1545 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1546 self.buffer.read(cx).replica_id()
1547 }
1548
1549 pub fn leader_peer_id(&self) -> Option<PeerId> {
1550 self.leader_peer_id
1551 }
1552
1553 pub fn buffer(&self) -> &Model<MultiBuffer> {
1554 &self.buffer
1555 }
1556
1557 pub fn workspace(&self) -> Option<View<Workspace>> {
1558 self.workspace.as_ref()?.0.upgrade()
1559 }
1560
1561 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1562 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1563 }
1564
1565 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1566 self.buffer().read(cx).title(cx)
1567 }
1568
1569 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1570 EditorSnapshot {
1571 mode: self.mode,
1572 show_gutter: self.show_gutter,
1573 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1574 scroll_anchor: self.scroll_manager.anchor(),
1575 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1576 placeholder_text: self.placeholder_text.clone(),
1577 is_focused: self.focus_handle.is_focused(cx),
1578 }
1579 }
1580
1581 pub fn language_at<'a, T: ToOffset>(
1582 &self,
1583 point: T,
1584 cx: &'a AppContext,
1585 ) -> Option<Arc<Language>> {
1586 self.buffer.read(cx).language_at(point, cx)
1587 }
1588
1589 pub fn file_at<'a, T: ToOffset>(
1590 &self,
1591 point: T,
1592 cx: &'a AppContext,
1593 ) -> Option<Arc<dyn language::File>> {
1594 self.buffer.read(cx).read(cx).file_at(point).cloned()
1595 }
1596
1597 pub fn active_excerpt(
1598 &self,
1599 cx: &AppContext,
1600 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1601 self.buffer
1602 .read(cx)
1603 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1604 }
1605
1606 pub fn mode(&self) -> EditorMode {
1607 self.mode
1608 }
1609
1610 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1611 self.collaboration_hub.as_deref()
1612 }
1613
1614 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1615 self.collaboration_hub = Some(hub);
1616 }
1617
1618 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1619 self.completion_provider = Some(hub);
1620 }
1621
1622 pub fn placeholder_text(&self) -> Option<&str> {
1623 self.placeholder_text.as_deref()
1624 }
1625
1626 pub fn set_placeholder_text(
1627 &mut self,
1628 placeholder_text: impl Into<Arc<str>>,
1629 cx: &mut ViewContext<Self>,
1630 ) {
1631 let placeholder_text = Some(placeholder_text.into());
1632 if self.placeholder_text != placeholder_text {
1633 self.placeholder_text = placeholder_text;
1634 cx.notify();
1635 }
1636 }
1637
1638 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1639 self.cursor_shape = cursor_shape;
1640 cx.notify();
1641 }
1642
1643 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1644 self.collapse_matches = collapse_matches;
1645 }
1646
1647 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1648 if self.collapse_matches {
1649 return range.start..range.start;
1650 }
1651 range.clone()
1652 }
1653
1654 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1655 if self.display_map.read(cx).clip_at_line_ends != clip {
1656 self.display_map
1657 .update(cx, |map, _| map.clip_at_line_ends = clip);
1658 }
1659 }
1660
1661 pub fn set_keymap_context_layer<Tag: 'static>(
1662 &mut self,
1663 context: KeyContext,
1664 cx: &mut ViewContext<Self>,
1665 ) {
1666 self.keymap_context_layers
1667 .insert(TypeId::of::<Tag>(), context);
1668 cx.notify();
1669 }
1670
1671 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1672 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1673 cx.notify();
1674 }
1675
1676 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1677 self.input_enabled = input_enabled;
1678 }
1679
1680 pub fn set_autoindent(&mut self, autoindent: bool) {
1681 if autoindent {
1682 self.autoindent_mode = Some(AutoindentMode::EachLine);
1683 } else {
1684 self.autoindent_mode = None;
1685 }
1686 }
1687
1688 pub fn read_only(&self, cx: &AppContext) -> bool {
1689 self.read_only || self.buffer.read(cx).read_only()
1690 }
1691
1692 pub fn set_read_only(&mut self, read_only: bool) {
1693 self.read_only = read_only;
1694 }
1695
1696 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1697 self.use_autoclose = autoclose;
1698 }
1699
1700 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1701 self.show_copilot_suggestions = show_copilot_suggestions;
1702 }
1703
1704 fn selections_did_change(
1705 &mut self,
1706 local: bool,
1707 old_cursor_position: &Anchor,
1708 cx: &mut ViewContext<Self>,
1709 ) {
1710 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1711 self.buffer.update(cx, |buffer, cx| {
1712 buffer.set_active_selections(
1713 &self.selections.disjoint_anchors(),
1714 self.selections.line_mode,
1715 self.cursor_shape,
1716 cx,
1717 )
1718 });
1719 }
1720
1721 let display_map = self
1722 .display_map
1723 .update(cx, |display_map, cx| display_map.snapshot(cx));
1724 let buffer = &display_map.buffer_snapshot;
1725 self.add_selections_state = None;
1726 self.select_next_state = None;
1727 self.select_prev_state = None;
1728 self.select_larger_syntax_node_stack.clear();
1729 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1730 self.snippet_stack
1731 .invalidate(&self.selections.disjoint_anchors(), buffer);
1732 self.take_rename(false, cx);
1733
1734 let new_cursor_position = self.selections.newest_anchor().head();
1735
1736 self.push_to_nav_history(
1737 old_cursor_position.clone(),
1738 Some(new_cursor_position.to_point(buffer)),
1739 cx,
1740 );
1741
1742 if local {
1743 let new_cursor_position = self.selections.newest_anchor().head();
1744 let mut context_menu = self.context_menu.write();
1745 let completion_menu = match context_menu.as_ref() {
1746 Some(ContextMenu::Completions(menu)) => Some(menu),
1747
1748 _ => {
1749 *context_menu = None;
1750 None
1751 }
1752 };
1753
1754 if let Some(completion_menu) = completion_menu {
1755 let cursor_position = new_cursor_position.to_offset(buffer);
1756 let (word_range, kind) =
1757 buffer.surrounding_word(completion_menu.initial_position.clone());
1758 if kind == Some(CharKind::Word)
1759 && word_range.to_inclusive().contains(&cursor_position)
1760 {
1761 let mut completion_menu = completion_menu.clone();
1762 drop(context_menu);
1763
1764 let query = Self::completion_query(buffer, cursor_position);
1765 cx.spawn(move |this, mut cx| async move {
1766 completion_menu
1767 .filter(query.as_deref(), cx.background_executor().clone())
1768 .await;
1769
1770 this.update(&mut cx, |this, cx| {
1771 let mut context_menu = this.context_menu.write();
1772 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1773 return;
1774 };
1775
1776 if menu.id > completion_menu.id {
1777 return;
1778 }
1779
1780 *context_menu = Some(ContextMenu::Completions(completion_menu));
1781 drop(context_menu);
1782 cx.notify();
1783 })
1784 })
1785 .detach();
1786
1787 self.show_completions(&ShowCompletions, cx);
1788 } else {
1789 drop(context_menu);
1790 self.hide_context_menu(cx);
1791 }
1792 } else {
1793 drop(context_menu);
1794 }
1795
1796 hide_hover(self, cx);
1797
1798 if old_cursor_position.to_display_point(&display_map).row()
1799 != new_cursor_position.to_display_point(&display_map).row()
1800 {
1801 self.available_code_actions.take();
1802 }
1803 self.refresh_code_actions(cx);
1804 self.refresh_document_highlights(cx);
1805 refresh_matching_bracket_highlights(self, cx);
1806 self.discard_copilot_suggestion(cx);
1807 }
1808
1809 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1810 cx.emit(EditorEvent::SelectionsChanged { local });
1811
1812 if self.selections.disjoint_anchors().len() == 1 {
1813 cx.emit(SearchEvent::ActiveMatchChanged)
1814 }
1815
1816 cx.notify();
1817 }
1818
1819 pub fn change_selections<R>(
1820 &mut self,
1821 autoscroll: Option<Autoscroll>,
1822 cx: &mut ViewContext<Self>,
1823 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1824 ) -> R {
1825 let old_cursor_position = self.selections.newest_anchor().head();
1826 self.push_to_selection_history();
1827
1828 let (changed, result) = self.selections.change_with(cx, change);
1829
1830 if changed {
1831 if let Some(autoscroll) = autoscroll {
1832 self.request_autoscroll(autoscroll, cx);
1833 }
1834 self.selections_did_change(true, &old_cursor_position, cx);
1835 }
1836
1837 result
1838 }
1839
1840 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1841 where
1842 I: IntoIterator<Item = (Range<S>, T)>,
1843 S: ToOffset,
1844 T: Into<Arc<str>>,
1845 {
1846 if self.read_only(cx) {
1847 return;
1848 }
1849
1850 self.buffer
1851 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1852 }
1853
1854 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1855 where
1856 I: IntoIterator<Item = (Range<S>, T)>,
1857 S: ToOffset,
1858 T: Into<Arc<str>>,
1859 {
1860 if self.read_only(cx) {
1861 return;
1862 }
1863
1864 self.buffer.update(cx, |buffer, cx| {
1865 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1866 });
1867 }
1868
1869 pub fn edit_with_block_indent<I, S, T>(
1870 &mut self,
1871 edits: I,
1872 original_indent_columns: Vec<u32>,
1873 cx: &mut ViewContext<Self>,
1874 ) where
1875 I: IntoIterator<Item = (Range<S>, T)>,
1876 S: ToOffset,
1877 T: Into<Arc<str>>,
1878 {
1879 if self.read_only(cx) {
1880 return;
1881 }
1882
1883 self.buffer.update(cx, |buffer, cx| {
1884 buffer.edit(
1885 edits,
1886 Some(AutoindentMode::Block {
1887 original_indent_columns,
1888 }),
1889 cx,
1890 )
1891 });
1892 }
1893
1894 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1895 self.hide_context_menu(cx);
1896
1897 match phase {
1898 SelectPhase::Begin {
1899 position,
1900 add,
1901 click_count,
1902 } => self.begin_selection(position, add, click_count, cx),
1903 SelectPhase::BeginColumnar {
1904 position,
1905 goal_column,
1906 } => self.begin_columnar_selection(position, goal_column, cx),
1907 SelectPhase::Extend {
1908 position,
1909 click_count,
1910 } => self.extend_selection(position, click_count, cx),
1911 SelectPhase::Update {
1912 position,
1913 goal_column,
1914 scroll_position,
1915 } => self.update_selection(position, goal_column, scroll_position, cx),
1916 SelectPhase::End => self.end_selection(cx),
1917 }
1918 }
1919
1920 fn extend_selection(
1921 &mut self,
1922 position: DisplayPoint,
1923 click_count: usize,
1924 cx: &mut ViewContext<Self>,
1925 ) {
1926 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1927 let tail = self.selections.newest::<usize>(cx).tail();
1928 self.begin_selection(position, false, click_count, cx);
1929
1930 let position = position.to_offset(&display_map, Bias::Left);
1931 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1932
1933 let mut pending_selection = self
1934 .selections
1935 .pending_anchor()
1936 .expect("extend_selection not called with pending selection");
1937 if position >= tail {
1938 pending_selection.start = tail_anchor;
1939 } else {
1940 pending_selection.end = tail_anchor;
1941 pending_selection.reversed = true;
1942 }
1943
1944 let mut pending_mode = self.selections.pending_mode().unwrap();
1945 match &mut pending_mode {
1946 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
1947 _ => {}
1948 }
1949
1950 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
1951 s.set_pending(pending_selection, pending_mode)
1952 });
1953 }
1954
1955 fn begin_selection(
1956 &mut self,
1957 position: DisplayPoint,
1958 add: bool,
1959 click_count: usize,
1960 cx: &mut ViewContext<Self>,
1961 ) {
1962 if !self.focus_handle.is_focused(cx) {
1963 cx.focus(&self.focus_handle);
1964 }
1965
1966 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1967 let buffer = &display_map.buffer_snapshot;
1968 let newest_selection = self.selections.newest_anchor().clone();
1969 let position = display_map.clip_point(position, Bias::Left);
1970
1971 let start;
1972 let end;
1973 let mode;
1974 let auto_scroll;
1975 match click_count {
1976 1 => {
1977 start = buffer.anchor_before(position.to_point(&display_map));
1978 end = start.clone();
1979 mode = SelectMode::Character;
1980 auto_scroll = true;
1981 }
1982 2 => {
1983 let range = movement::surrounding_word(&display_map, position);
1984 start = buffer.anchor_before(range.start.to_point(&display_map));
1985 end = buffer.anchor_before(range.end.to_point(&display_map));
1986 mode = SelectMode::Word(start.clone()..end.clone());
1987 auto_scroll = true;
1988 }
1989 3 => {
1990 let position = display_map
1991 .clip_point(position, Bias::Left)
1992 .to_point(&display_map);
1993 let line_start = display_map.prev_line_boundary(position).0;
1994 let next_line_start = buffer.clip_point(
1995 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1996 Bias::Left,
1997 );
1998 start = buffer.anchor_before(line_start);
1999 end = buffer.anchor_before(next_line_start);
2000 mode = SelectMode::Line(start.clone()..end.clone());
2001 auto_scroll = true;
2002 }
2003 _ => {
2004 start = buffer.anchor_before(0);
2005 end = buffer.anchor_before(buffer.len());
2006 mode = SelectMode::All;
2007 auto_scroll = false;
2008 }
2009 }
2010
2011 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2012 if !add {
2013 s.clear_disjoint();
2014 } else if click_count > 1 {
2015 s.delete(newest_selection.id)
2016 }
2017
2018 s.set_pending_anchor_range(start..end, mode);
2019 });
2020 }
2021
2022 fn begin_columnar_selection(
2023 &mut self,
2024 position: DisplayPoint,
2025 goal_column: u32,
2026 cx: &mut ViewContext<Self>,
2027 ) {
2028 if !self.focus_handle.is_focused(cx) {
2029 cx.focus(&self.focus_handle);
2030 }
2031
2032 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2033 let tail = self.selections.newest::<Point>(cx).tail();
2034 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2035
2036 self.select_columns(
2037 tail.to_display_point(&display_map),
2038 position,
2039 goal_column,
2040 &display_map,
2041 cx,
2042 );
2043 }
2044
2045 fn update_selection(
2046 &mut self,
2047 position: DisplayPoint,
2048 goal_column: u32,
2049 scroll_position: gpui::Point<f32>,
2050 cx: &mut ViewContext<Self>,
2051 ) {
2052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2053
2054 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2055 let tail = tail.to_display_point(&display_map);
2056 self.select_columns(tail, position, goal_column, &display_map, cx);
2057 } else if let Some(mut pending) = self.selections.pending_anchor() {
2058 let buffer = self.buffer.read(cx).snapshot(cx);
2059 let head;
2060 let tail;
2061 let mode = self.selections.pending_mode().unwrap();
2062 match &mode {
2063 SelectMode::Character => {
2064 head = position.to_point(&display_map);
2065 tail = pending.tail().to_point(&buffer);
2066 }
2067 SelectMode::Word(original_range) => {
2068 let original_display_range = original_range.start.to_display_point(&display_map)
2069 ..original_range.end.to_display_point(&display_map);
2070 let original_buffer_range = original_display_range.start.to_point(&display_map)
2071 ..original_display_range.end.to_point(&display_map);
2072 if movement::is_inside_word(&display_map, position)
2073 || original_display_range.contains(&position)
2074 {
2075 let word_range = movement::surrounding_word(&display_map, position);
2076 if word_range.start < original_display_range.start {
2077 head = word_range.start.to_point(&display_map);
2078 } else {
2079 head = word_range.end.to_point(&display_map);
2080 }
2081 } else {
2082 head = position.to_point(&display_map);
2083 }
2084
2085 if head <= original_buffer_range.start {
2086 tail = original_buffer_range.end;
2087 } else {
2088 tail = original_buffer_range.start;
2089 }
2090 }
2091 SelectMode::Line(original_range) => {
2092 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2093
2094 let position = display_map
2095 .clip_point(position, Bias::Left)
2096 .to_point(&display_map);
2097 let line_start = display_map.prev_line_boundary(position).0;
2098 let next_line_start = buffer.clip_point(
2099 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2100 Bias::Left,
2101 );
2102
2103 if line_start < original_range.start {
2104 head = line_start
2105 } else {
2106 head = next_line_start
2107 }
2108
2109 if head <= original_range.start {
2110 tail = original_range.end;
2111 } else {
2112 tail = original_range.start;
2113 }
2114 }
2115 SelectMode::All => {
2116 return;
2117 }
2118 };
2119
2120 if head < tail {
2121 pending.start = buffer.anchor_before(head);
2122 pending.end = buffer.anchor_before(tail);
2123 pending.reversed = true;
2124 } else {
2125 pending.start = buffer.anchor_before(tail);
2126 pending.end = buffer.anchor_before(head);
2127 pending.reversed = false;
2128 }
2129
2130 self.change_selections(None, cx, |s| {
2131 s.set_pending(pending, mode);
2132 });
2133 } else {
2134 log::error!("update_selection dispatched with no pending selection");
2135 return;
2136 }
2137
2138 self.set_scroll_position(scroll_position, cx);
2139 cx.notify();
2140 }
2141
2142 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2143 self.columnar_selection_tail.take();
2144 if self.selections.pending_anchor().is_some() {
2145 let selections = self.selections.all::<usize>(cx);
2146 self.change_selections(None, cx, |s| {
2147 s.select(selections);
2148 s.clear_pending();
2149 });
2150 }
2151 }
2152
2153 fn select_columns(
2154 &mut self,
2155 tail: DisplayPoint,
2156 head: DisplayPoint,
2157 goal_column: u32,
2158 display_map: &DisplaySnapshot,
2159 cx: &mut ViewContext<Self>,
2160 ) {
2161 let start_row = cmp::min(tail.row(), head.row());
2162 let end_row = cmp::max(tail.row(), head.row());
2163 let start_column = cmp::min(tail.column(), goal_column);
2164 let end_column = cmp::max(tail.column(), goal_column);
2165 let reversed = start_column < tail.column();
2166
2167 let selection_ranges = (start_row..=end_row)
2168 .filter_map(|row| {
2169 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2170 let start = display_map
2171 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2172 .to_point(display_map);
2173 let end = display_map
2174 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2175 .to_point(display_map);
2176 if reversed {
2177 Some(end..start)
2178 } else {
2179 Some(start..end)
2180 }
2181 } else {
2182 None
2183 }
2184 })
2185 .collect::<Vec<_>>();
2186
2187 self.change_selections(None, cx, |s| {
2188 s.select_ranges(selection_ranges);
2189 });
2190 cx.notify();
2191 }
2192
2193 pub fn has_pending_nonempty_selection(&self) -> bool {
2194 let pending_nonempty_selection = match self.selections.pending_anchor() {
2195 Some(Selection { start, end, .. }) => start != end,
2196 None => false,
2197 };
2198 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2199 }
2200
2201 pub fn has_pending_selection(&self) -> bool {
2202 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2203 }
2204
2205 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2206 if self.take_rename(false, cx).is_some() {
2207 return;
2208 }
2209
2210 if hide_hover(self, cx) {
2211 return;
2212 }
2213
2214 if self.hide_context_menu(cx).is_some() {
2215 return;
2216 }
2217
2218 if self.discard_copilot_suggestion(cx) {
2219 return;
2220 }
2221
2222 if self.snippet_stack.pop().is_some() {
2223 return;
2224 }
2225
2226 if self.mode == EditorMode::Full {
2227 if self.active_diagnostics.is_some() {
2228 self.dismiss_diagnostics(cx);
2229 return;
2230 }
2231
2232 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2233 return;
2234 }
2235 }
2236
2237 cx.propagate();
2238 }
2239
2240 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2241 let text: Arc<str> = text.into();
2242
2243 if self.read_only(cx) {
2244 return;
2245 }
2246
2247 let selections = self.selections.all_adjusted(cx);
2248 let mut brace_inserted = false;
2249 let mut edits = Vec::new();
2250 let mut new_selections = Vec::with_capacity(selections.len());
2251 let mut new_autoclose_regions = Vec::new();
2252 let snapshot = self.buffer.read(cx).read(cx);
2253
2254 for (selection, autoclose_region) in
2255 self.selections_with_autoclose_regions(selections, &snapshot)
2256 {
2257 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2258 // Determine if the inserted text matches the opening or closing
2259 // bracket of any of this language's bracket pairs.
2260 let mut bracket_pair = None;
2261 let mut is_bracket_pair_start = false;
2262 if !text.is_empty() {
2263 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2264 // and they are removing the character that triggered IME popup.
2265 for (pair, enabled) in scope.brackets() {
2266 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2267 bracket_pair = Some(pair.clone());
2268 is_bracket_pair_start = true;
2269 break;
2270 } else if pair.end.as_str() == text.as_ref() {
2271 bracket_pair = Some(pair.clone());
2272 break;
2273 }
2274 }
2275 }
2276
2277 if let Some(bracket_pair) = bracket_pair {
2278 if selection.is_empty() {
2279 if is_bracket_pair_start {
2280 let prefix_len = bracket_pair.start.len() - text.len();
2281
2282 // If the inserted text is a suffix of an opening bracket and the
2283 // selection is preceded by the rest of the opening bracket, then
2284 // insert the closing bracket.
2285 let following_text_allows_autoclose = snapshot
2286 .chars_at(selection.start)
2287 .next()
2288 .map_or(true, |c| scope.should_autoclose_before(c));
2289 let preceding_text_matches_prefix = prefix_len == 0
2290 || (selection.start.column >= (prefix_len as u32)
2291 && snapshot.contains_str_at(
2292 Point::new(
2293 selection.start.row,
2294 selection.start.column - (prefix_len as u32),
2295 ),
2296 &bracket_pair.start[..prefix_len],
2297 ));
2298 let autoclose = self.use_autoclose
2299 && snapshot.settings_at(selection.start, cx).use_autoclose;
2300 if autoclose
2301 && following_text_allows_autoclose
2302 && preceding_text_matches_prefix
2303 {
2304 let anchor = snapshot.anchor_before(selection.end);
2305 new_selections.push((selection.map(|_| anchor), text.len()));
2306 new_autoclose_regions.push((
2307 anchor,
2308 text.len(),
2309 selection.id,
2310 bracket_pair.clone(),
2311 ));
2312 edits.push((
2313 selection.range(),
2314 format!("{}{}", text, bracket_pair.end).into(),
2315 ));
2316 brace_inserted = true;
2317 continue;
2318 }
2319 }
2320
2321 if let Some(region) = autoclose_region {
2322 // If the selection is followed by an auto-inserted closing bracket,
2323 // then don't insert that closing bracket again; just move the selection
2324 // past the closing bracket.
2325 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2326 && text.as_ref() == region.pair.end.as_str();
2327 if should_skip {
2328 let anchor = snapshot.anchor_after(selection.end);
2329 new_selections
2330 .push((selection.map(|_| anchor), region.pair.end.len()));
2331 continue;
2332 }
2333 }
2334 }
2335 // If an opening bracket is 1 character long and is typed while
2336 // text is selected, then surround that text with the bracket pair.
2337 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2338 edits.push((selection.start..selection.start, text.clone()));
2339 edits.push((
2340 selection.end..selection.end,
2341 bracket_pair.end.as_str().into(),
2342 ));
2343 brace_inserted = true;
2344 new_selections.push((
2345 Selection {
2346 id: selection.id,
2347 start: snapshot.anchor_after(selection.start),
2348 end: snapshot.anchor_before(selection.end),
2349 reversed: selection.reversed,
2350 goal: selection.goal,
2351 },
2352 0,
2353 ));
2354 continue;
2355 }
2356 }
2357 }
2358
2359 // If not handling any auto-close operation, then just replace the selected
2360 // text with the given input and move the selection to the end of the
2361 // newly inserted text.
2362 let anchor = snapshot.anchor_after(selection.end);
2363 new_selections.push((selection.map(|_| anchor), 0));
2364 edits.push((selection.start..selection.end, text.clone()));
2365 }
2366
2367 drop(snapshot);
2368 self.transact(cx, |this, cx| {
2369 this.buffer.update(cx, |buffer, cx| {
2370 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2371 });
2372
2373 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2374 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2375 let snapshot = this.buffer.read(cx).read(cx);
2376 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2377 .zip(new_selection_deltas)
2378 .map(|(selection, delta)| Selection {
2379 id: selection.id,
2380 start: selection.start + delta,
2381 end: selection.end + delta,
2382 reversed: selection.reversed,
2383 goal: SelectionGoal::None,
2384 })
2385 .collect::<Vec<_>>();
2386
2387 let mut i = 0;
2388 for (position, delta, selection_id, pair) in new_autoclose_regions {
2389 let position = position.to_offset(&snapshot) + delta;
2390 let start = snapshot.anchor_before(position);
2391 let end = snapshot.anchor_after(position);
2392 while let Some(existing_state) = this.autoclose_regions.get(i) {
2393 match existing_state.range.start.cmp(&start, &snapshot) {
2394 Ordering::Less => i += 1,
2395 Ordering::Greater => break,
2396 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2397 Ordering::Less => i += 1,
2398 Ordering::Equal => break,
2399 Ordering::Greater => break,
2400 },
2401 }
2402 }
2403 this.autoclose_regions.insert(
2404 i,
2405 AutocloseRegion {
2406 selection_id,
2407 range: start..end,
2408 pair,
2409 },
2410 );
2411 }
2412
2413 drop(snapshot);
2414 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2415 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2416
2417 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2418 if let Some(on_type_format_task) =
2419 this.trigger_on_type_formatting(text.to_string(), cx)
2420 {
2421 on_type_format_task.detach_and_log_err(cx);
2422 }
2423 }
2424
2425 if had_active_copilot_suggestion {
2426 this.refresh_copilot_suggestions(true, cx);
2427 if !this.has_active_copilot_suggestion(cx) {
2428 this.trigger_completion_on_input(&text, cx);
2429 }
2430 } else {
2431 this.trigger_completion_on_input(&text, cx);
2432 this.refresh_copilot_suggestions(true, cx);
2433 }
2434 });
2435 }
2436
2437 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2438 self.transact(cx, |this, cx| {
2439 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2440 let selections = this.selections.all::<usize>(cx);
2441 let multi_buffer = this.buffer.read(cx);
2442 let buffer = multi_buffer.snapshot(cx);
2443 selections
2444 .iter()
2445 .map(|selection| {
2446 let start_point = selection.start.to_point(&buffer);
2447 let mut indent = buffer.indent_size_for_line(start_point.row);
2448 indent.len = cmp::min(indent.len, start_point.column);
2449 let start = selection.start;
2450 let end = selection.end;
2451 let is_cursor = start == end;
2452 let language_scope = buffer.language_scope_at(start);
2453 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2454 &language_scope
2455 {
2456 let leading_whitespace_len = buffer
2457 .reversed_chars_at(start)
2458 .take_while(|c| c.is_whitespace() && *c != '\n')
2459 .map(|c| c.len_utf8())
2460 .sum::<usize>();
2461
2462 let trailing_whitespace_len = buffer
2463 .chars_at(end)
2464 .take_while(|c| c.is_whitespace() && *c != '\n')
2465 .map(|c| c.len_utf8())
2466 .sum::<usize>();
2467
2468 let insert_extra_newline =
2469 language.brackets().any(|(pair, enabled)| {
2470 let pair_start = pair.start.trim_end();
2471 let pair_end = pair.end.trim_start();
2472
2473 enabled
2474 && pair.newline
2475 && buffer.contains_str_at(
2476 end + trailing_whitespace_len,
2477 pair_end,
2478 )
2479 && buffer.contains_str_at(
2480 (start - leading_whitespace_len)
2481 .saturating_sub(pair_start.len()),
2482 pair_start,
2483 )
2484 });
2485 // Comment extension on newline is allowed only for cursor selections
2486 let comment_delimiter = language.line_comment_prefix().filter(|_| {
2487 let is_comment_extension_enabled =
2488 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2489 is_cursor && is_comment_extension_enabled
2490 });
2491 let comment_delimiter = if let Some(delimiter) = comment_delimiter {
2492 buffer
2493 .buffer_line_for_row(start_point.row)
2494 .is_some_and(|(snapshot, range)| {
2495 let mut index_of_first_non_whitespace = 0;
2496 let line_starts_with_comment = snapshot
2497 .chars_for_range(range)
2498 .skip_while(|c| {
2499 let should_skip = c.is_whitespace();
2500 if should_skip {
2501 index_of_first_non_whitespace += 1;
2502 }
2503 should_skip
2504 })
2505 .take(delimiter.len())
2506 .eq(delimiter.chars());
2507 let cursor_is_placed_after_comment_marker =
2508 index_of_first_non_whitespace + delimiter.len()
2509 <= start_point.column as usize;
2510 line_starts_with_comment
2511 && cursor_is_placed_after_comment_marker
2512 })
2513 .then(|| delimiter.clone())
2514 } else {
2515 None
2516 };
2517 (comment_delimiter, insert_extra_newline)
2518 } else {
2519 (None, false)
2520 };
2521
2522 let capacity_for_delimiter = comment_delimiter
2523 .as_deref()
2524 .map(str::len)
2525 .unwrap_or_default();
2526 let mut new_text =
2527 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2528 new_text.push_str("\n");
2529 new_text.extend(indent.chars());
2530 if let Some(delimiter) = &comment_delimiter {
2531 new_text.push_str(&delimiter);
2532 }
2533 if insert_extra_newline {
2534 new_text = new_text.repeat(2);
2535 }
2536
2537 let anchor = buffer.anchor_after(end);
2538 let new_selection = selection.map(|_| anchor);
2539 (
2540 (start..end, new_text),
2541 (insert_extra_newline, new_selection),
2542 )
2543 })
2544 .unzip()
2545 };
2546
2547 this.edit_with_autoindent(edits, cx);
2548 let buffer = this.buffer.read(cx).snapshot(cx);
2549 let new_selections = selection_fixup_info
2550 .into_iter()
2551 .map(|(extra_newline_inserted, new_selection)| {
2552 let mut cursor = new_selection.end.to_point(&buffer);
2553 if extra_newline_inserted {
2554 cursor.row -= 1;
2555 cursor.column = buffer.line_len(cursor.row);
2556 }
2557 new_selection.map(|_| cursor)
2558 })
2559 .collect();
2560
2561 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2562 this.refresh_copilot_suggestions(true, cx);
2563 });
2564 }
2565
2566 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2567 let buffer = self.buffer.read(cx);
2568 let snapshot = buffer.snapshot(cx);
2569
2570 let mut edits = Vec::new();
2571 let mut rows = Vec::new();
2572 let mut rows_inserted = 0;
2573
2574 for selection in self.selections.all_adjusted(cx) {
2575 let cursor = selection.head();
2576 let row = cursor.row;
2577
2578 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2579
2580 let newline = "\n".to_string();
2581 edits.push((start_of_line..start_of_line, newline));
2582
2583 rows.push(row + rows_inserted);
2584 rows_inserted += 1;
2585 }
2586
2587 self.transact(cx, |editor, cx| {
2588 editor.edit(edits, cx);
2589
2590 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2591 let mut index = 0;
2592 s.move_cursors_with(|map, _, _| {
2593 let row = rows[index];
2594 index += 1;
2595
2596 let point = Point::new(row, 0);
2597 let boundary = map.next_line_boundary(point).1;
2598 let clipped = map.clip_point(boundary, Bias::Left);
2599
2600 (clipped, SelectionGoal::None)
2601 });
2602 });
2603
2604 let mut indent_edits = Vec::new();
2605 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2606 for row in rows {
2607 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2608 for (row, indent) in indents {
2609 if indent.len == 0 {
2610 continue;
2611 }
2612
2613 let text = match indent.kind {
2614 IndentKind::Space => " ".repeat(indent.len as usize),
2615 IndentKind::Tab => "\t".repeat(indent.len as usize),
2616 };
2617 let point = Point::new(row, 0);
2618 indent_edits.push((point..point, text));
2619 }
2620 }
2621 editor.edit(indent_edits, cx);
2622 });
2623 }
2624
2625 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2626 let buffer = self.buffer.read(cx);
2627 let snapshot = buffer.snapshot(cx);
2628
2629 let mut edits = Vec::new();
2630 let mut rows = Vec::new();
2631 let mut rows_inserted = 0;
2632
2633 for selection in self.selections.all_adjusted(cx) {
2634 let cursor = selection.head();
2635 let row = cursor.row;
2636
2637 let point = Point::new(row + 1, 0);
2638 let start_of_line = snapshot.clip_point(point, Bias::Left);
2639
2640 let newline = "\n".to_string();
2641 edits.push((start_of_line..start_of_line, newline));
2642
2643 rows_inserted += 1;
2644 rows.push(row + rows_inserted);
2645 }
2646
2647 self.transact(cx, |editor, cx| {
2648 editor.edit(edits, cx);
2649
2650 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2651 let mut index = 0;
2652 s.move_cursors_with(|map, _, _| {
2653 let row = rows[index];
2654 index += 1;
2655
2656 let point = Point::new(row, 0);
2657 let boundary = map.next_line_boundary(point).1;
2658 let clipped = map.clip_point(boundary, Bias::Left);
2659
2660 (clipped, SelectionGoal::None)
2661 });
2662 });
2663
2664 let mut indent_edits = Vec::new();
2665 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2666 for row in rows {
2667 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2668 for (row, indent) in indents {
2669 if indent.len == 0 {
2670 continue;
2671 }
2672
2673 let text = match indent.kind {
2674 IndentKind::Space => " ".repeat(indent.len as usize),
2675 IndentKind::Tab => "\t".repeat(indent.len as usize),
2676 };
2677 let point = Point::new(row, 0);
2678 indent_edits.push((point..point, text));
2679 }
2680 }
2681 editor.edit(indent_edits, cx);
2682 });
2683 }
2684
2685 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2686 self.insert_with_autoindent_mode(
2687 text,
2688 Some(AutoindentMode::Block {
2689 original_indent_columns: Vec::new(),
2690 }),
2691 cx,
2692 );
2693 }
2694
2695 fn insert_with_autoindent_mode(
2696 &mut self,
2697 text: &str,
2698 autoindent_mode: Option<AutoindentMode>,
2699 cx: &mut ViewContext<Self>,
2700 ) {
2701 if self.read_only(cx) {
2702 return;
2703 }
2704
2705 let text: Arc<str> = text.into();
2706 self.transact(cx, |this, cx| {
2707 let old_selections = this.selections.all_adjusted(cx);
2708 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2709 let anchors = {
2710 let snapshot = buffer.read(cx);
2711 old_selections
2712 .iter()
2713 .map(|s| {
2714 let anchor = snapshot.anchor_after(s.head());
2715 s.map(|_| anchor)
2716 })
2717 .collect::<Vec<_>>()
2718 };
2719 buffer.edit(
2720 old_selections
2721 .iter()
2722 .map(|s| (s.start..s.end, text.clone())),
2723 autoindent_mode,
2724 cx,
2725 );
2726 anchors
2727 });
2728
2729 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2730 s.select_anchors(selection_anchors);
2731 })
2732 });
2733 }
2734
2735 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2736 if !EditorSettings::get_global(cx).show_completions_on_input {
2737 return;
2738 }
2739
2740 let selection = self.selections.newest_anchor();
2741 if self
2742 .buffer
2743 .read(cx)
2744 .is_completion_trigger(selection.head(), text, cx)
2745 {
2746 self.show_completions(&ShowCompletions, cx);
2747 } else {
2748 self.hide_context_menu(cx);
2749 }
2750 }
2751
2752 /// If any empty selections is touching the start of its innermost containing autoclose
2753 /// region, expand it to select the brackets.
2754 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2755 let selections = self.selections.all::<usize>(cx);
2756 let buffer = self.buffer.read(cx).read(cx);
2757 let mut new_selections = Vec::new();
2758 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2759 if let (Some(region), true) = (region, selection.is_empty()) {
2760 let mut range = region.range.to_offset(&buffer);
2761 if selection.start == range.start {
2762 if range.start >= region.pair.start.len() {
2763 range.start -= region.pair.start.len();
2764 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2765 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2766 range.end += region.pair.end.len();
2767 selection.start = range.start;
2768 selection.end = range.end;
2769 }
2770 }
2771 }
2772 }
2773 }
2774 new_selections.push(selection);
2775 }
2776
2777 drop(buffer);
2778 self.change_selections(None, cx, |selections| selections.select(new_selections));
2779 }
2780
2781 /// Iterate the given selections, and for each one, find the smallest surrounding
2782 /// autoclose region. This uses the ordering of the selections and the autoclose
2783 /// regions to avoid repeated comparisons.
2784 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2785 &'a self,
2786 selections: impl IntoIterator<Item = Selection<D>>,
2787 buffer: &'a MultiBufferSnapshot,
2788 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2789 let mut i = 0;
2790 let mut regions = self.autoclose_regions.as_slice();
2791 selections.into_iter().map(move |selection| {
2792 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2793
2794 let mut enclosing = None;
2795 while let Some(pair_state) = regions.get(i) {
2796 if pair_state.range.end.to_offset(buffer) < range.start {
2797 regions = ®ions[i + 1..];
2798 i = 0;
2799 } else if pair_state.range.start.to_offset(buffer) > range.end {
2800 break;
2801 } else {
2802 if pair_state.selection_id == selection.id {
2803 enclosing = Some(pair_state);
2804 }
2805 i += 1;
2806 }
2807 }
2808
2809 (selection.clone(), enclosing)
2810 })
2811 }
2812
2813 /// Remove any autoclose regions that no longer contain their selection.
2814 fn invalidate_autoclose_regions(
2815 &mut self,
2816 mut selections: &[Selection<Anchor>],
2817 buffer: &MultiBufferSnapshot,
2818 ) {
2819 self.autoclose_regions.retain(|state| {
2820 let mut i = 0;
2821 while let Some(selection) = selections.get(i) {
2822 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2823 selections = &selections[1..];
2824 continue;
2825 }
2826 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2827 break;
2828 }
2829 if selection.id == state.selection_id {
2830 return true;
2831 } else {
2832 i += 1;
2833 }
2834 }
2835 false
2836 });
2837 }
2838
2839 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2840 let offset = position.to_offset(buffer);
2841 let (word_range, kind) = buffer.surrounding_word(offset);
2842 if offset > word_range.start && kind == Some(CharKind::Word) {
2843 Some(
2844 buffer
2845 .text_for_range(word_range.start..offset)
2846 .collect::<String>(),
2847 )
2848 } else {
2849 None
2850 }
2851 }
2852
2853 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2854 self.refresh_inlay_hints(
2855 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2856 cx,
2857 );
2858 }
2859
2860 pub fn inlay_hints_enabled(&self) -> bool {
2861 self.inlay_hint_cache.enabled
2862 }
2863
2864 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2865 if self.project.is_none() || self.mode != EditorMode::Full {
2866 return;
2867 }
2868
2869 let reason_description = reason.description();
2870 let (invalidate_cache, required_languages) = match reason {
2871 InlayHintRefreshReason::Toggle(enabled) => {
2872 self.inlay_hint_cache.enabled = enabled;
2873 if enabled {
2874 (InvalidationStrategy::RefreshRequested, None)
2875 } else {
2876 self.inlay_hint_cache.clear();
2877 self.splice_inlay_hints(
2878 self.visible_inlay_hints(cx)
2879 .iter()
2880 .map(|inlay| inlay.id)
2881 .collect(),
2882 Vec::new(),
2883 cx,
2884 );
2885 return;
2886 }
2887 }
2888 InlayHintRefreshReason::SettingsChange(new_settings) => {
2889 match self.inlay_hint_cache.update_settings(
2890 &self.buffer,
2891 new_settings,
2892 self.visible_inlay_hints(cx),
2893 cx,
2894 ) {
2895 ControlFlow::Break(Some(InlaySplice {
2896 to_remove,
2897 to_insert,
2898 })) => {
2899 self.splice_inlay_hints(to_remove, to_insert, cx);
2900 return;
2901 }
2902 ControlFlow::Break(None) => return,
2903 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2904 }
2905 }
2906 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2907 if let Some(InlaySplice {
2908 to_remove,
2909 to_insert,
2910 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2911 {
2912 self.splice_inlay_hints(to_remove, to_insert, cx);
2913 }
2914 return;
2915 }
2916 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2917 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2918 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2919 }
2920 InlayHintRefreshReason::RefreshRequested => {
2921 (InvalidationStrategy::RefreshRequested, None)
2922 }
2923 };
2924
2925 if let Some(InlaySplice {
2926 to_remove,
2927 to_insert,
2928 }) = self.inlay_hint_cache.spawn_hint_refresh(
2929 reason_description,
2930 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
2931 invalidate_cache,
2932 cx,
2933 ) {
2934 self.splice_inlay_hints(to_remove, to_insert, cx);
2935 }
2936 }
2937
2938 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
2939 self.display_map
2940 .read(cx)
2941 .current_inlays()
2942 .filter(move |inlay| {
2943 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
2944 })
2945 .cloned()
2946 .collect()
2947 }
2948
2949 pub fn excerpts_for_inlay_hints_query(
2950 &self,
2951 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
2952 cx: &mut ViewContext<Editor>,
2953 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
2954 let Some(project) = self.project.as_ref() else {
2955 return HashMap::default();
2956 };
2957 let project = project.read(cx);
2958 let multi_buffer = self.buffer().read(cx);
2959 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
2960 let multi_buffer_visible_start = self
2961 .scroll_manager
2962 .anchor()
2963 .anchor
2964 .to_point(&multi_buffer_snapshot);
2965 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
2966 multi_buffer_visible_start
2967 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
2968 Bias::Left,
2969 );
2970 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
2971 multi_buffer
2972 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
2973 .into_iter()
2974 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
2975 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
2976 let buffer = buffer_handle.read(cx);
2977 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
2978 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
2979 let worktree_entry = buffer_worktree
2980 .read(cx)
2981 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
2982 if worktree_entry.is_ignored {
2983 return None;
2984 }
2985
2986 let language = buffer.language()?;
2987 if let Some(restrict_to_languages) = restrict_to_languages {
2988 if !restrict_to_languages.contains(language) {
2989 return None;
2990 }
2991 }
2992 Some((
2993 excerpt_id,
2994 (
2995 buffer_handle,
2996 buffer.version().clone(),
2997 excerpt_visible_range,
2998 ),
2999 ))
3000 })
3001 .collect()
3002 }
3003
3004 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3005 TextLayoutDetails {
3006 text_system: cx.text_system().clone(),
3007 editor_style: self.style.clone().unwrap(),
3008 rem_size: cx.rem_size(),
3009 }
3010 }
3011
3012 fn splice_inlay_hints(
3013 &self,
3014 to_remove: Vec<InlayId>,
3015 to_insert: Vec<Inlay>,
3016 cx: &mut ViewContext<Self>,
3017 ) {
3018 self.display_map.update(cx, |display_map, cx| {
3019 display_map.splice_inlays(to_remove, to_insert, cx);
3020 });
3021 cx.notify();
3022 }
3023
3024 fn trigger_on_type_formatting(
3025 &self,
3026 input: String,
3027 cx: &mut ViewContext<Self>,
3028 ) -> Option<Task<Result<()>>> {
3029 if input.len() != 1 {
3030 return None;
3031 }
3032
3033 let project = self.project.as_ref()?;
3034 let position = self.selections.newest_anchor().head();
3035 let (buffer, buffer_position) = self
3036 .buffer
3037 .read(cx)
3038 .text_anchor_for_position(position.clone(), cx)?;
3039
3040 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3041 // hence we do LSP request & edit on host side only — add formats to host's history.
3042 let push_to_lsp_host_history = true;
3043 // If this is not the host, append its history with new edits.
3044 let push_to_client_history = project.read(cx).is_remote();
3045
3046 let on_type_formatting = project.update(cx, |project, cx| {
3047 project.on_type_format(
3048 buffer.clone(),
3049 buffer_position,
3050 input,
3051 push_to_lsp_host_history,
3052 cx,
3053 )
3054 });
3055 Some(cx.spawn(|editor, mut cx| async move {
3056 if let Some(transaction) = on_type_formatting.await? {
3057 if push_to_client_history {
3058 buffer
3059 .update(&mut cx, |buffer, _| {
3060 buffer.push_transaction(transaction, Instant::now());
3061 })
3062 .ok();
3063 }
3064 editor.update(&mut cx, |editor, cx| {
3065 editor.refresh_document_highlights(cx);
3066 })?;
3067 }
3068 Ok(())
3069 }))
3070 }
3071
3072 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3073 if self.pending_rename.is_some() {
3074 return;
3075 }
3076
3077 let Some(provider) = self.completion_provider.as_ref() else {
3078 return;
3079 };
3080
3081 let position = self.selections.newest_anchor().head();
3082 let (buffer, buffer_position) = if let Some(output) = self
3083 .buffer
3084 .read(cx)
3085 .text_anchor_for_position(position.clone(), cx)
3086 {
3087 output
3088 } else {
3089 return;
3090 };
3091
3092 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3093 let completions = provider.completions(&buffer, buffer_position, cx);
3094
3095 let id = post_inc(&mut self.next_completion_id);
3096 let task = cx.spawn(|this, mut cx| {
3097 async move {
3098 let completions = completions.await.log_err();
3099 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3100 let mut menu = CompletionsMenu {
3101 id,
3102 initial_position: position,
3103 match_candidates: completions
3104 .iter()
3105 .enumerate()
3106 .map(|(id, completion)| {
3107 StringMatchCandidate::new(
3108 id,
3109 completion.label.text[completion.label.filter_range.clone()]
3110 .into(),
3111 )
3112 })
3113 .collect(),
3114 buffer,
3115 completions: Arc::new(RwLock::new(completions.into())),
3116 matches: Vec::new().into(),
3117 selected_item: 0,
3118 scroll_handle: UniformListScrollHandle::new(),
3119 };
3120 menu.filter(query.as_deref(), cx.background_executor().clone())
3121 .await;
3122
3123 if menu.matches.is_empty() {
3124 (None, None)
3125 } else {
3126 let pre_resolve_task = this
3127 .update(&mut cx, |editor, cx| {
3128 menu.pre_resolve_completion_documentation(editor, cx)
3129 })
3130 .ok()
3131 .flatten();
3132 (Some(menu), pre_resolve_task)
3133 }
3134 } else {
3135 (None, None)
3136 };
3137
3138 this.update(&mut cx, |this, cx| {
3139 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3140
3141 let mut context_menu = this.context_menu.write();
3142 match context_menu.as_ref() {
3143 None => {}
3144
3145 Some(ContextMenu::Completions(prev_menu)) => {
3146 if prev_menu.id > id {
3147 return;
3148 }
3149 }
3150
3151 _ => return,
3152 }
3153
3154 if this.focus_handle.is_focused(cx) && menu.is_some() {
3155 let menu = menu.unwrap();
3156 *context_menu = Some(ContextMenu::Completions(menu));
3157 drop(context_menu);
3158 this.discard_copilot_suggestion(cx);
3159 cx.notify();
3160 } else if this.completion_tasks.len() <= 1 {
3161 // If there are no more completion tasks and the last menu was
3162 // empty, we should hide it. If it was already hidden, we should
3163 // also show the copilot suggestion when available.
3164 drop(context_menu);
3165 if this.hide_context_menu(cx).is_none() {
3166 this.update_visible_copilot_suggestion(cx);
3167 }
3168 }
3169 })?;
3170
3171 if let Some(pre_resolve_task) = pre_resolve_task {
3172 pre_resolve_task.await;
3173 }
3174
3175 Ok::<_, anyhow::Error>(())
3176 }
3177 .log_err()
3178 });
3179
3180 self.completion_tasks.push((id, task));
3181 }
3182
3183 pub fn confirm_completion(
3184 &mut self,
3185 action: &ConfirmCompletion,
3186 cx: &mut ViewContext<Self>,
3187 ) -> Option<Task<Result<()>>> {
3188 use language::ToOffset as _;
3189
3190 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3191 menu
3192 } else {
3193 return None;
3194 };
3195
3196 let mat = completions_menu
3197 .matches
3198 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3199 let buffer_handle = completions_menu.buffer;
3200 let completions = completions_menu.completions.read();
3201 let completion = completions.get(mat.candidate_id)?;
3202 cx.stop_propagation();
3203
3204 let snippet;
3205 let text;
3206 if completion.is_snippet() {
3207 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3208 text = snippet.as_ref().unwrap().text.clone();
3209 } else {
3210 snippet = None;
3211 text = completion.new_text.clone();
3212 };
3213 let selections = self.selections.all::<usize>(cx);
3214 let buffer = buffer_handle.read(cx);
3215 let old_range = completion.old_range.to_offset(buffer);
3216 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3217
3218 let newest_selection = self.selections.newest_anchor();
3219 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3220 return None;
3221 }
3222
3223 let lookbehind = newest_selection
3224 .start
3225 .text_anchor
3226 .to_offset(buffer)
3227 .saturating_sub(old_range.start);
3228 let lookahead = old_range
3229 .end
3230 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3231 let mut common_prefix_len = old_text
3232 .bytes()
3233 .zip(text.bytes())
3234 .take_while(|(a, b)| a == b)
3235 .count();
3236
3237 let snapshot = self.buffer.read(cx).snapshot(cx);
3238 let mut range_to_replace: Option<Range<isize>> = None;
3239 let mut ranges = Vec::new();
3240 for selection in &selections {
3241 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3242 let start = selection.start.saturating_sub(lookbehind);
3243 let end = selection.end + lookahead;
3244 if selection.id == newest_selection.id {
3245 range_to_replace = Some(
3246 ((start + common_prefix_len) as isize - selection.start as isize)
3247 ..(end as isize - selection.start as isize),
3248 );
3249 }
3250 ranges.push(start + common_prefix_len..end);
3251 } else {
3252 common_prefix_len = 0;
3253 ranges.clear();
3254 ranges.extend(selections.iter().map(|s| {
3255 if s.id == newest_selection.id {
3256 range_to_replace = Some(
3257 old_range.start.to_offset_utf16(&snapshot).0 as isize
3258 - selection.start as isize
3259 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3260 - selection.start as isize,
3261 );
3262 old_range.clone()
3263 } else {
3264 s.start..s.end
3265 }
3266 }));
3267 break;
3268 }
3269 }
3270 let text = &text[common_prefix_len..];
3271
3272 cx.emit(EditorEvent::InputHandled {
3273 utf16_range_to_replace: range_to_replace,
3274 text: text.into(),
3275 });
3276
3277 self.transact(cx, |this, cx| {
3278 if let Some(mut snippet) = snippet {
3279 snippet.text = text.to_string();
3280 for tabstop in snippet.tabstops.iter_mut().flatten() {
3281 tabstop.start -= common_prefix_len as isize;
3282 tabstop.end -= common_prefix_len as isize;
3283 }
3284
3285 this.insert_snippet(&ranges, snippet, cx).log_err();
3286 } else {
3287 this.buffer.update(cx, |buffer, cx| {
3288 buffer.edit(
3289 ranges.iter().map(|range| (range.clone(), text)),
3290 this.autoindent_mode.clone(),
3291 cx,
3292 );
3293 });
3294 }
3295
3296 this.refresh_copilot_suggestions(true, cx);
3297 });
3298
3299 let provider = self.completion_provider.as_ref()?;
3300 let apply_edits = provider.apply_additional_edits_for_completion(
3301 buffer_handle,
3302 completion.clone(),
3303 true,
3304 cx,
3305 );
3306 Some(cx.foreground_executor().spawn(async move {
3307 apply_edits.await?;
3308 Ok(())
3309 }))
3310 }
3311
3312 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3313 let mut context_menu = self.context_menu.write();
3314 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3315 *context_menu = None;
3316 cx.notify();
3317 return;
3318 }
3319 drop(context_menu);
3320
3321 let deployed_from_indicator = action.deployed_from_indicator;
3322 let mut task = self.code_actions_task.take();
3323 cx.spawn(|this, mut cx| async move {
3324 while let Some(prev_task) = task {
3325 prev_task.await;
3326 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3327 }
3328
3329 this.update(&mut cx, |this, cx| {
3330 if this.focus_handle.is_focused(cx) {
3331 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3332 this.completion_tasks.clear();
3333 this.discard_copilot_suggestion(cx);
3334 *this.context_menu.write() =
3335 Some(ContextMenu::CodeActions(CodeActionsMenu {
3336 buffer,
3337 actions,
3338 selected_item: Default::default(),
3339 scroll_handle: UniformListScrollHandle::default(),
3340 deployed_from_indicator,
3341 }));
3342 cx.notify();
3343 }
3344 }
3345 })?;
3346
3347 Ok::<_, anyhow::Error>(())
3348 })
3349 .detach_and_log_err(cx);
3350 }
3351
3352 pub fn confirm_code_action(
3353 &mut self,
3354 action: &ConfirmCodeAction,
3355 cx: &mut ViewContext<Self>,
3356 ) -> Option<Task<Result<()>>> {
3357 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3358 menu
3359 } else {
3360 return None;
3361 };
3362 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3363 let action = actions_menu.actions.get(action_ix)?.clone();
3364 let title = action.lsp_action.title.clone();
3365 let buffer = actions_menu.buffer;
3366 let workspace = self.workspace()?;
3367
3368 let apply_code_actions = workspace
3369 .read(cx)
3370 .project()
3371 .clone()
3372 .update(cx, |project, cx| {
3373 project.apply_code_action(buffer, action, true, cx)
3374 });
3375 let workspace = workspace.downgrade();
3376 Some(cx.spawn(|editor, cx| async move {
3377 let project_transaction = apply_code_actions.await?;
3378 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3379 }))
3380 }
3381
3382 async fn open_project_transaction(
3383 this: &WeakView<Editor>,
3384 workspace: WeakView<Workspace>,
3385 transaction: ProjectTransaction,
3386 title: String,
3387 mut cx: AsyncWindowContext,
3388 ) -> Result<()> {
3389 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3390
3391 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3392 cx.update(|_, cx| {
3393 entries.sort_unstable_by_key(|(buffer, _)| {
3394 buffer.read(cx).file().map(|f| f.path().clone())
3395 });
3396 })?;
3397
3398 // If the project transaction's edits are all contained within this editor, then
3399 // avoid opening a new editor to display them.
3400
3401 if let Some((buffer, transaction)) = entries.first() {
3402 if entries.len() == 1 {
3403 let excerpt = this.update(&mut cx, |editor, cx| {
3404 editor
3405 .buffer()
3406 .read(cx)
3407 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3408 })?;
3409 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3410 if excerpted_buffer == *buffer {
3411 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3412 let excerpt_range = excerpt_range.to_offset(buffer);
3413 buffer
3414 .edited_ranges_for_transaction::<usize>(transaction)
3415 .all(|range| {
3416 excerpt_range.start <= range.start
3417 && excerpt_range.end >= range.end
3418 })
3419 })?;
3420
3421 if all_edits_within_excerpt {
3422 return Ok(());
3423 }
3424 }
3425 }
3426 }
3427 } else {
3428 return Ok(());
3429 }
3430
3431 let mut ranges_to_highlight = Vec::new();
3432 let excerpt_buffer = cx.new_model(|cx| {
3433 let mut multibuffer =
3434 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3435 for (buffer_handle, transaction) in &entries {
3436 let buffer = buffer_handle.read(cx);
3437 ranges_to_highlight.extend(
3438 multibuffer.push_excerpts_with_context_lines(
3439 buffer_handle.clone(),
3440 buffer
3441 .edited_ranges_for_transaction::<usize>(transaction)
3442 .collect(),
3443 1,
3444 cx,
3445 ),
3446 );
3447 }
3448 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3449 multibuffer
3450 })?;
3451
3452 workspace.update(&mut cx, |workspace, cx| {
3453 let project = workspace.project().clone();
3454 let editor =
3455 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3456 workspace.add_item(Box::new(editor.clone()), cx);
3457 editor.update(cx, |editor, cx| {
3458 editor.highlight_background::<Self>(
3459 ranges_to_highlight,
3460 |theme| theme.editor_highlighted_line_background,
3461 cx,
3462 );
3463 });
3464 })?;
3465
3466 Ok(())
3467 }
3468
3469 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3470 let project = self.project.clone()?;
3471 let buffer = self.buffer.read(cx);
3472 let newest_selection = self.selections.newest_anchor().clone();
3473 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3474 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3475 if start_buffer != end_buffer {
3476 return None;
3477 }
3478
3479 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3480 cx.background_executor()
3481 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3482 .await;
3483
3484 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3485 project.code_actions(&start_buffer, start..end, cx)
3486 }) {
3487 code_actions.await.log_err()
3488 } else {
3489 None
3490 };
3491
3492 this.update(&mut cx, |this, cx| {
3493 this.available_code_actions = actions.and_then(|actions| {
3494 if actions.is_empty() {
3495 None
3496 } else {
3497 Some((start_buffer, actions.into()))
3498 }
3499 });
3500 cx.notify();
3501 })
3502 .log_err();
3503 }));
3504 None
3505 }
3506
3507 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3508 if self.pending_rename.is_some() {
3509 return None;
3510 }
3511
3512 let project = self.project.clone()?;
3513 let buffer = self.buffer.read(cx);
3514 let newest_selection = self.selections.newest_anchor().clone();
3515 let cursor_position = newest_selection.head();
3516 let (cursor_buffer, cursor_buffer_position) =
3517 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3518 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3519 if cursor_buffer != tail_buffer {
3520 return None;
3521 }
3522
3523 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3524 cx.background_executor()
3525 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3526 .await;
3527
3528 let highlights = if let Some(highlights) = project
3529 .update(&mut cx, |project, cx| {
3530 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3531 })
3532 .log_err()
3533 {
3534 highlights.await.log_err()
3535 } else {
3536 None
3537 };
3538
3539 if let Some(highlights) = highlights {
3540 this.update(&mut cx, |this, cx| {
3541 if this.pending_rename.is_some() {
3542 return;
3543 }
3544
3545 let buffer_id = cursor_position.buffer_id;
3546 let buffer = this.buffer.read(cx);
3547 if !buffer
3548 .text_anchor_for_position(cursor_position, cx)
3549 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3550 {
3551 return;
3552 }
3553
3554 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3555 let mut write_ranges = Vec::new();
3556 let mut read_ranges = Vec::new();
3557 for highlight in highlights {
3558 for (excerpt_id, excerpt_range) in
3559 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3560 {
3561 let start = highlight
3562 .range
3563 .start
3564 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3565 let end = highlight
3566 .range
3567 .end
3568 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3569 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3570 continue;
3571 }
3572
3573 let range = Anchor {
3574 buffer_id,
3575 excerpt_id: excerpt_id.clone(),
3576 text_anchor: start,
3577 }..Anchor {
3578 buffer_id,
3579 excerpt_id,
3580 text_anchor: end,
3581 };
3582 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3583 write_ranges.push(range);
3584 } else {
3585 read_ranges.push(range);
3586 }
3587 }
3588 }
3589
3590 this.highlight_background::<DocumentHighlightRead>(
3591 read_ranges,
3592 |theme| theme.editor_document_highlight_read_background,
3593 cx,
3594 );
3595 this.highlight_background::<DocumentHighlightWrite>(
3596 write_ranges,
3597 |theme| theme.editor_document_highlight_write_background,
3598 cx,
3599 );
3600 cx.notify();
3601 })
3602 .log_err();
3603 }
3604 }));
3605 None
3606 }
3607
3608 fn refresh_copilot_suggestions(
3609 &mut self,
3610 debounce: bool,
3611 cx: &mut ViewContext<Self>,
3612 ) -> Option<()> {
3613 let copilot = Copilot::global(cx)?;
3614 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3615 self.clear_copilot_suggestions(cx);
3616 return None;
3617 }
3618 self.update_visible_copilot_suggestion(cx);
3619
3620 let snapshot = self.buffer.read(cx).snapshot(cx);
3621 let cursor = self.selections.newest_anchor().head();
3622 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3623 self.clear_copilot_suggestions(cx);
3624 return None;
3625 }
3626
3627 let (buffer, buffer_position) =
3628 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3629 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3630 if debounce {
3631 cx.background_executor()
3632 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3633 .await;
3634 }
3635
3636 let completions = copilot
3637 .update(&mut cx, |copilot, cx| {
3638 copilot.completions(&buffer, buffer_position, cx)
3639 })
3640 .log_err()
3641 .unwrap_or(Task::ready(Ok(Vec::new())))
3642 .await
3643 .log_err()
3644 .into_iter()
3645 .flatten()
3646 .collect_vec();
3647
3648 this.update(&mut cx, |this, cx| {
3649 if !completions.is_empty() {
3650 this.copilot_state.cycled = false;
3651 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3652 this.copilot_state.completions.clear();
3653 this.copilot_state.active_completion_index = 0;
3654 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3655 for completion in completions {
3656 this.copilot_state.push_completion(completion);
3657 }
3658 this.update_visible_copilot_suggestion(cx);
3659 }
3660 })
3661 .log_err()?;
3662 Some(())
3663 });
3664
3665 Some(())
3666 }
3667
3668 fn cycle_copilot_suggestions(
3669 &mut self,
3670 direction: Direction,
3671 cx: &mut ViewContext<Self>,
3672 ) -> Option<()> {
3673 let copilot = Copilot::global(cx)?;
3674 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3675 return None;
3676 }
3677
3678 if self.copilot_state.cycled {
3679 self.copilot_state.cycle_completions(direction);
3680 self.update_visible_copilot_suggestion(cx);
3681 } else {
3682 let cursor = self.selections.newest_anchor().head();
3683 let (buffer, buffer_position) =
3684 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3685 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3686 let completions = copilot
3687 .update(&mut cx, |copilot, cx| {
3688 copilot.completions_cycling(&buffer, buffer_position, cx)
3689 })
3690 .log_err()?
3691 .await;
3692
3693 this.update(&mut cx, |this, cx| {
3694 this.copilot_state.cycled = true;
3695 for completion in completions.log_err().into_iter().flatten() {
3696 this.copilot_state.push_completion(completion);
3697 }
3698 this.copilot_state.cycle_completions(direction);
3699 this.update_visible_copilot_suggestion(cx);
3700 })
3701 .log_err()?;
3702
3703 Some(())
3704 });
3705 }
3706
3707 Some(())
3708 }
3709
3710 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3711 if !self.has_active_copilot_suggestion(cx) {
3712 self.refresh_copilot_suggestions(false, cx);
3713 return;
3714 }
3715
3716 self.update_visible_copilot_suggestion(cx);
3717 }
3718
3719 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3720 self.show_cursor_names(cx);
3721 }
3722
3723 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3724 self.show_cursor_names = true;
3725 cx.notify();
3726 cx.spawn(|this, mut cx| async move {
3727 cx.background_executor().timer(Duration::from_secs(3)).await;
3728 this.update(&mut cx, |this, cx| {
3729 this.show_cursor_names = false;
3730 cx.notify()
3731 })
3732 .ok()
3733 })
3734 .detach();
3735 }
3736
3737 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3738 if self.has_active_copilot_suggestion(cx) {
3739 self.cycle_copilot_suggestions(Direction::Next, cx);
3740 } else {
3741 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3742 if is_copilot_disabled {
3743 cx.propagate();
3744 }
3745 }
3746 }
3747
3748 fn previous_copilot_suggestion(
3749 &mut self,
3750 _: &copilot::PreviousSuggestion,
3751 cx: &mut ViewContext<Self>,
3752 ) {
3753 if self.has_active_copilot_suggestion(cx) {
3754 self.cycle_copilot_suggestions(Direction::Prev, cx);
3755 } else {
3756 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3757 if is_copilot_disabled {
3758 cx.propagate();
3759 }
3760 }
3761 }
3762
3763 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3764 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3765 if let Some((copilot, completion)) =
3766 Copilot::global(cx).zip(self.copilot_state.active_completion())
3767 {
3768 copilot
3769 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3770 .detach_and_log_err(cx);
3771
3772 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3773 }
3774 cx.emit(EditorEvent::InputHandled {
3775 utf16_range_to_replace: None,
3776 text: suggestion.text.to_string().into(),
3777 });
3778 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3779 cx.notify();
3780 true
3781 } else {
3782 false
3783 }
3784 }
3785
3786 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3787 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3788 if let Some(copilot) = Copilot::global(cx) {
3789 copilot
3790 .update(cx, |copilot, cx| {
3791 copilot.discard_completions(&self.copilot_state.completions, cx)
3792 })
3793 .detach_and_log_err(cx);
3794
3795 self.report_copilot_event(None, false, cx)
3796 }
3797
3798 self.display_map.update(cx, |map, cx| {
3799 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3800 });
3801 cx.notify();
3802 true
3803 } else {
3804 false
3805 }
3806 }
3807
3808 fn is_copilot_enabled_at(
3809 &self,
3810 location: Anchor,
3811 snapshot: &MultiBufferSnapshot,
3812 cx: &mut ViewContext<Self>,
3813 ) -> bool {
3814 let file = snapshot.file_at(location);
3815 let language = snapshot.language_at(location);
3816 let settings = all_language_settings(file, cx);
3817 self.show_copilot_suggestions
3818 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3819 }
3820
3821 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3822 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3823 let buffer = self.buffer.read(cx).read(cx);
3824 suggestion.position.is_valid(&buffer)
3825 } else {
3826 false
3827 }
3828 }
3829
3830 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3831 let suggestion = self.copilot_state.suggestion.take()?;
3832 self.display_map.update(cx, |map, cx| {
3833 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3834 });
3835 let buffer = self.buffer.read(cx).read(cx);
3836
3837 if suggestion.position.is_valid(&buffer) {
3838 Some(suggestion)
3839 } else {
3840 None
3841 }
3842 }
3843
3844 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3845 let snapshot = self.buffer.read(cx).snapshot(cx);
3846 let selection = self.selections.newest_anchor();
3847 let cursor = selection.head();
3848
3849 if self.context_menu.read().is_some()
3850 || !self.completion_tasks.is_empty()
3851 || selection.start != selection.end
3852 {
3853 self.discard_copilot_suggestion(cx);
3854 } else if let Some(text) = self
3855 .copilot_state
3856 .text_for_active_completion(cursor, &snapshot)
3857 {
3858 let text = Rope::from(text);
3859 let mut to_remove = Vec::new();
3860 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3861 to_remove.push(suggestion.id);
3862 }
3863
3864 let suggestion_inlay =
3865 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3866 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3867 self.display_map.update(cx, move |map, cx| {
3868 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3869 });
3870 cx.notify();
3871 } else {
3872 self.discard_copilot_suggestion(cx);
3873 }
3874 }
3875
3876 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3877 self.copilot_state = Default::default();
3878 self.discard_copilot_suggestion(cx);
3879 }
3880
3881 pub fn render_code_actions_indicator(
3882 &self,
3883 _style: &EditorStyle,
3884 is_active: bool,
3885 cx: &mut ViewContext<Self>,
3886 ) -> Option<IconButton> {
3887 if self.available_code_actions.is_some() {
3888 Some(
3889 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3890 .icon_size(IconSize::Small)
3891 .icon_color(Color::Muted)
3892 .selected(is_active)
3893 .on_click(cx.listener(|editor, _e, cx| {
3894 editor.toggle_code_actions(
3895 &ToggleCodeActions {
3896 deployed_from_indicator: true,
3897 },
3898 cx,
3899 );
3900 })),
3901 )
3902 } else {
3903 None
3904 }
3905 }
3906
3907 pub fn render_fold_indicators(
3908 &self,
3909 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
3910 _style: &EditorStyle,
3911 gutter_hovered: bool,
3912 _line_height: Pixels,
3913 _gutter_margin: Pixels,
3914 cx: &mut ViewContext<Self>,
3915 ) -> Vec<Option<IconButton>> {
3916 fold_data
3917 .iter()
3918 .enumerate()
3919 .map(|(ix, fold_data)| {
3920 fold_data
3921 .map(|(fold_status, buffer_row, active)| {
3922 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
3923 IconButton::new(ix as usize, ui::IconName::ChevronDown)
3924 .on_click(cx.listener(move |editor, _e, cx| match fold_status {
3925 FoldStatus::Folded => {
3926 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
3927 }
3928 FoldStatus::Foldable => {
3929 editor.fold_at(&FoldAt { buffer_row }, cx);
3930 }
3931 }))
3932 .icon_color(ui::Color::Muted)
3933 .icon_size(ui::IconSize::Small)
3934 .selected(fold_status == FoldStatus::Folded)
3935 .selected_icon(ui::IconName::ChevronRight)
3936 .size(ui::ButtonSize::None)
3937 })
3938 })
3939 .flatten()
3940 })
3941 .collect()
3942 }
3943
3944 pub fn context_menu_visible(&self) -> bool {
3945 self.context_menu
3946 .read()
3947 .as_ref()
3948 .map_or(false, |menu| menu.visible())
3949 }
3950
3951 pub fn render_context_menu(
3952 &self,
3953 cursor_position: DisplayPoint,
3954 style: &EditorStyle,
3955 max_height: Pixels,
3956 cx: &mut ViewContext<Editor>,
3957 ) -> Option<(DisplayPoint, AnyElement)> {
3958 self.context_menu.read().as_ref().map(|menu| {
3959 menu.render(
3960 cursor_position,
3961 style,
3962 max_height,
3963 self.workspace.as_ref().map(|(w, _)| w.clone()),
3964 cx,
3965 )
3966 })
3967 }
3968
3969 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
3970 cx.notify();
3971 self.completion_tasks.clear();
3972 let context_menu = self.context_menu.write().take();
3973 if context_menu.is_some() {
3974 self.update_visible_copilot_suggestion(cx);
3975 }
3976 context_menu
3977 }
3978
3979 pub fn insert_snippet(
3980 &mut self,
3981 insertion_ranges: &[Range<usize>],
3982 snippet: Snippet,
3983 cx: &mut ViewContext<Self>,
3984 ) -> Result<()> {
3985 let tabstops = self.buffer.update(cx, |buffer, cx| {
3986 let snippet_text: Arc<str> = snippet.text.clone().into();
3987 buffer.edit(
3988 insertion_ranges
3989 .iter()
3990 .cloned()
3991 .map(|range| (range, snippet_text.clone())),
3992 Some(AutoindentMode::EachLine),
3993 cx,
3994 );
3995
3996 let snapshot = &*buffer.read(cx);
3997 let snippet = &snippet;
3998 snippet
3999 .tabstops
4000 .iter()
4001 .map(|tabstop| {
4002 let mut tabstop_ranges = tabstop
4003 .iter()
4004 .flat_map(|tabstop_range| {
4005 let mut delta = 0_isize;
4006 insertion_ranges.iter().map(move |insertion_range| {
4007 let insertion_start = insertion_range.start as isize + delta;
4008 delta +=
4009 snippet.text.len() as isize - insertion_range.len() as isize;
4010
4011 let start = snapshot.anchor_before(
4012 (insertion_start + tabstop_range.start) as usize,
4013 );
4014 let end = snapshot
4015 .anchor_after((insertion_start + tabstop_range.end) as usize);
4016 start..end
4017 })
4018 })
4019 .collect::<Vec<_>>();
4020 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4021 tabstop_ranges
4022 })
4023 .collect::<Vec<_>>()
4024 });
4025
4026 if let Some(tabstop) = tabstops.first() {
4027 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4028 s.select_ranges(tabstop.iter().cloned());
4029 });
4030 self.snippet_stack.push(SnippetState {
4031 active_index: 0,
4032 ranges: tabstops,
4033 });
4034 }
4035
4036 Ok(())
4037 }
4038
4039 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4040 self.move_to_snippet_tabstop(Bias::Right, cx)
4041 }
4042
4043 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4044 self.move_to_snippet_tabstop(Bias::Left, cx)
4045 }
4046
4047 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4048 if let Some(mut snippet) = self.snippet_stack.pop() {
4049 match bias {
4050 Bias::Left => {
4051 if snippet.active_index > 0 {
4052 snippet.active_index -= 1;
4053 } else {
4054 self.snippet_stack.push(snippet);
4055 return false;
4056 }
4057 }
4058 Bias::Right => {
4059 if snippet.active_index + 1 < snippet.ranges.len() {
4060 snippet.active_index += 1;
4061 } else {
4062 self.snippet_stack.push(snippet);
4063 return false;
4064 }
4065 }
4066 }
4067 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4069 s.select_anchor_ranges(current_ranges.iter().cloned())
4070 });
4071 // If snippet state is not at the last tabstop, push it back on the stack
4072 if snippet.active_index + 1 < snippet.ranges.len() {
4073 self.snippet_stack.push(snippet);
4074 }
4075 return true;
4076 }
4077 }
4078
4079 false
4080 }
4081
4082 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4083 self.transact(cx, |this, cx| {
4084 this.select_all(&SelectAll, cx);
4085 this.insert("", cx);
4086 });
4087 }
4088
4089 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4090 self.transact(cx, |this, cx| {
4091 this.select_autoclose_pair(cx);
4092 let mut selections = this.selections.all::<Point>(cx);
4093 if !this.selections.line_mode {
4094 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4095 for selection in &mut selections {
4096 if selection.is_empty() {
4097 let old_head = selection.head();
4098 let mut new_head =
4099 movement::left(&display_map, old_head.to_display_point(&display_map))
4100 .to_point(&display_map);
4101 if let Some((buffer, line_buffer_range)) = display_map
4102 .buffer_snapshot
4103 .buffer_line_for_row(old_head.row)
4104 {
4105 let indent_size =
4106 buffer.indent_size_for_line(line_buffer_range.start.row);
4107 let indent_len = match indent_size.kind {
4108 IndentKind::Space => {
4109 buffer.settings_at(line_buffer_range.start, cx).tab_size
4110 }
4111 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4112 };
4113 if old_head.column <= indent_size.len && old_head.column > 0 {
4114 let indent_len = indent_len.get();
4115 new_head = cmp::min(
4116 new_head,
4117 Point::new(
4118 old_head.row,
4119 ((old_head.column - 1) / indent_len) * indent_len,
4120 ),
4121 );
4122 }
4123 }
4124
4125 selection.set_head(new_head, SelectionGoal::None);
4126 }
4127 }
4128 }
4129
4130 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4131 this.insert("", cx);
4132 this.refresh_copilot_suggestions(true, cx);
4133 });
4134 }
4135
4136 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4137 self.transact(cx, |this, cx| {
4138 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4139 let line_mode = s.line_mode;
4140 s.move_with(|map, selection| {
4141 if selection.is_empty() && !line_mode {
4142 let cursor = movement::right(map, selection.head());
4143 selection.end = cursor;
4144 selection.reversed = true;
4145 selection.goal = SelectionGoal::None;
4146 }
4147 })
4148 });
4149 this.insert("", cx);
4150 this.refresh_copilot_suggestions(true, cx);
4151 });
4152 }
4153
4154 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4155 if self.move_to_prev_snippet_tabstop(cx) {
4156 return;
4157 }
4158
4159 self.outdent(&Outdent, cx);
4160 }
4161
4162 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4163 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4164 return;
4165 }
4166
4167 let mut selections = self.selections.all_adjusted(cx);
4168 let buffer = self.buffer.read(cx);
4169 let snapshot = buffer.snapshot(cx);
4170 let rows_iter = selections.iter().map(|s| s.head().row);
4171 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4172
4173 let mut edits = Vec::new();
4174 let mut prev_edited_row = 0;
4175 let mut row_delta = 0;
4176 for selection in &mut selections {
4177 if selection.start.row != prev_edited_row {
4178 row_delta = 0;
4179 }
4180 prev_edited_row = selection.end.row;
4181
4182 // If the selection is non-empty, then increase the indentation of the selected lines.
4183 if !selection.is_empty() {
4184 row_delta =
4185 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4186 continue;
4187 }
4188
4189 // If the selection is empty and the cursor is in the leading whitespace before the
4190 // suggested indentation, then auto-indent the line.
4191 let cursor = selection.head();
4192 let current_indent = snapshot.indent_size_for_line(cursor.row);
4193 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4194 if cursor.column < suggested_indent.len
4195 && cursor.column <= current_indent.len
4196 && current_indent.len <= suggested_indent.len
4197 {
4198 selection.start = Point::new(cursor.row, suggested_indent.len);
4199 selection.end = selection.start;
4200 if row_delta == 0 {
4201 edits.extend(Buffer::edit_for_indent_size_adjustment(
4202 cursor.row,
4203 current_indent,
4204 suggested_indent,
4205 ));
4206 row_delta = suggested_indent.len - current_indent.len;
4207 }
4208 continue;
4209 }
4210 }
4211
4212 // Accept copilot suggestion if there is only one selection and the cursor is not
4213 // in the leading whitespace.
4214 if self.selections.count() == 1
4215 && cursor.column >= current_indent.len
4216 && self.has_active_copilot_suggestion(cx)
4217 {
4218 self.accept_copilot_suggestion(cx);
4219 return;
4220 }
4221
4222 // Otherwise, insert a hard or soft tab.
4223 let settings = buffer.settings_at(cursor, cx);
4224 let tab_size = if settings.hard_tabs {
4225 IndentSize::tab()
4226 } else {
4227 let tab_size = settings.tab_size.get();
4228 let char_column = snapshot
4229 .text_for_range(Point::new(cursor.row, 0)..cursor)
4230 .flat_map(str::chars)
4231 .count()
4232 + row_delta as usize;
4233 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4234 IndentSize::spaces(chars_to_next_tab_stop)
4235 };
4236 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4237 selection.end = selection.start;
4238 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4239 row_delta += tab_size.len;
4240 }
4241
4242 self.transact(cx, |this, cx| {
4243 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4244 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4245 this.refresh_copilot_suggestions(true, cx);
4246 });
4247 }
4248
4249 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4250 let mut selections = self.selections.all::<Point>(cx);
4251 let mut prev_edited_row = 0;
4252 let mut row_delta = 0;
4253 let mut edits = Vec::new();
4254 let buffer = self.buffer.read(cx);
4255 let snapshot = buffer.snapshot(cx);
4256 for selection in &mut selections {
4257 if selection.start.row != prev_edited_row {
4258 row_delta = 0;
4259 }
4260 prev_edited_row = selection.end.row;
4261
4262 row_delta =
4263 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4264 }
4265
4266 self.transact(cx, |this, cx| {
4267 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4268 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4269 });
4270 }
4271
4272 fn indent_selection(
4273 buffer: &MultiBuffer,
4274 snapshot: &MultiBufferSnapshot,
4275 selection: &mut Selection<Point>,
4276 edits: &mut Vec<(Range<Point>, String)>,
4277 delta_for_start_row: u32,
4278 cx: &AppContext,
4279 ) -> u32 {
4280 let settings = buffer.settings_at(selection.start, cx);
4281 let tab_size = settings.tab_size.get();
4282 let indent_kind = if settings.hard_tabs {
4283 IndentKind::Tab
4284 } else {
4285 IndentKind::Space
4286 };
4287 let mut start_row = selection.start.row;
4288 let mut end_row = selection.end.row + 1;
4289
4290 // If a selection ends at the beginning of a line, don't indent
4291 // that last line.
4292 if selection.end.column == 0 {
4293 end_row -= 1;
4294 }
4295
4296 // Avoid re-indenting a row that has already been indented by a
4297 // previous selection, but still update this selection's column
4298 // to reflect that indentation.
4299 if delta_for_start_row > 0 {
4300 start_row += 1;
4301 selection.start.column += delta_for_start_row;
4302 if selection.end.row == selection.start.row {
4303 selection.end.column += delta_for_start_row;
4304 }
4305 }
4306
4307 let mut delta_for_end_row = 0;
4308 for row in start_row..end_row {
4309 let current_indent = snapshot.indent_size_for_line(row);
4310 let indent_delta = match (current_indent.kind, indent_kind) {
4311 (IndentKind::Space, IndentKind::Space) => {
4312 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4313 IndentSize::spaces(columns_to_next_tab_stop)
4314 }
4315 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4316 (_, IndentKind::Tab) => IndentSize::tab(),
4317 };
4318
4319 let row_start = Point::new(row, 0);
4320 edits.push((
4321 row_start..row_start,
4322 indent_delta.chars().collect::<String>(),
4323 ));
4324
4325 // Update this selection's endpoints to reflect the indentation.
4326 if row == selection.start.row {
4327 selection.start.column += indent_delta.len;
4328 }
4329 if row == selection.end.row {
4330 selection.end.column += indent_delta.len;
4331 delta_for_end_row = indent_delta.len;
4332 }
4333 }
4334
4335 if selection.start.row == selection.end.row {
4336 delta_for_start_row + delta_for_end_row
4337 } else {
4338 delta_for_end_row
4339 }
4340 }
4341
4342 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4343 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4344 let selections = self.selections.all::<Point>(cx);
4345 let mut deletion_ranges = Vec::new();
4346 let mut last_outdent = None;
4347 {
4348 let buffer = self.buffer.read(cx);
4349 let snapshot = buffer.snapshot(cx);
4350 for selection in &selections {
4351 let settings = buffer.settings_at(selection.start, cx);
4352 let tab_size = settings.tab_size.get();
4353 let mut rows = selection.spanned_rows(false, &display_map);
4354
4355 // Avoid re-outdenting a row that has already been outdented by a
4356 // previous selection.
4357 if let Some(last_row) = last_outdent {
4358 if last_row == rows.start {
4359 rows.start += 1;
4360 }
4361 }
4362
4363 for row in rows {
4364 let indent_size = snapshot.indent_size_for_line(row);
4365 if indent_size.len > 0 {
4366 let deletion_len = match indent_size.kind {
4367 IndentKind::Space => {
4368 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4369 if columns_to_prev_tab_stop == 0 {
4370 tab_size
4371 } else {
4372 columns_to_prev_tab_stop
4373 }
4374 }
4375 IndentKind::Tab => 1,
4376 };
4377 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4378 last_outdent = Some(row);
4379 }
4380 }
4381 }
4382 }
4383
4384 self.transact(cx, |this, cx| {
4385 this.buffer.update(cx, |buffer, cx| {
4386 let empty_str: Arc<str> = "".into();
4387 buffer.edit(
4388 deletion_ranges
4389 .into_iter()
4390 .map(|range| (range, empty_str.clone())),
4391 None,
4392 cx,
4393 );
4394 });
4395 let selections = this.selections.all::<usize>(cx);
4396 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4397 });
4398 }
4399
4400 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4401 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4402 let selections = self.selections.all::<Point>(cx);
4403
4404 let mut new_cursors = Vec::new();
4405 let mut edit_ranges = Vec::new();
4406 let mut selections = selections.iter().peekable();
4407 while let Some(selection) = selections.next() {
4408 let mut rows = selection.spanned_rows(false, &display_map);
4409 let goal_display_column = selection.head().to_display_point(&display_map).column();
4410
4411 // Accumulate contiguous regions of rows that we want to delete.
4412 while let Some(next_selection) = selections.peek() {
4413 let next_rows = next_selection.spanned_rows(false, &display_map);
4414 if next_rows.start <= rows.end {
4415 rows.end = next_rows.end;
4416 selections.next().unwrap();
4417 } else {
4418 break;
4419 }
4420 }
4421
4422 let buffer = &display_map.buffer_snapshot;
4423 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4424 let edit_end;
4425 let cursor_buffer_row;
4426 if buffer.max_point().row >= rows.end {
4427 // If there's a line after the range, delete the \n from the end of the row range
4428 // and position the cursor on the next line.
4429 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4430 cursor_buffer_row = rows.end;
4431 } else {
4432 // If there isn't a line after the range, delete the \n from the line before the
4433 // start of the row range and position the cursor there.
4434 edit_start = edit_start.saturating_sub(1);
4435 edit_end = buffer.len();
4436 cursor_buffer_row = rows.start.saturating_sub(1);
4437 }
4438
4439 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4440 *cursor.column_mut() =
4441 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4442
4443 new_cursors.push((
4444 selection.id,
4445 buffer.anchor_after(cursor.to_point(&display_map)),
4446 ));
4447 edit_ranges.push(edit_start..edit_end);
4448 }
4449
4450 self.transact(cx, |this, cx| {
4451 let buffer = this.buffer.update(cx, |buffer, cx| {
4452 let empty_str: Arc<str> = "".into();
4453 buffer.edit(
4454 edit_ranges
4455 .into_iter()
4456 .map(|range| (range, empty_str.clone())),
4457 None,
4458 cx,
4459 );
4460 buffer.snapshot(cx)
4461 });
4462 let new_selections = new_cursors
4463 .into_iter()
4464 .map(|(id, cursor)| {
4465 let cursor = cursor.to_point(&buffer);
4466 Selection {
4467 id,
4468 start: cursor,
4469 end: cursor,
4470 reversed: false,
4471 goal: SelectionGoal::None,
4472 }
4473 })
4474 .collect();
4475
4476 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4477 s.select(new_selections);
4478 });
4479 });
4480 }
4481
4482 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4483 let mut row_ranges = Vec::<Range<u32>>::new();
4484 for selection in self.selections.all::<Point>(cx) {
4485 let start = selection.start.row;
4486 let end = if selection.start.row == selection.end.row {
4487 selection.start.row + 1
4488 } else {
4489 selection.end.row
4490 };
4491
4492 if let Some(last_row_range) = row_ranges.last_mut() {
4493 if start <= last_row_range.end {
4494 last_row_range.end = end;
4495 continue;
4496 }
4497 }
4498 row_ranges.push(start..end);
4499 }
4500
4501 let snapshot = self.buffer.read(cx).snapshot(cx);
4502 let mut cursor_positions = Vec::new();
4503 for row_range in &row_ranges {
4504 let anchor = snapshot.anchor_before(Point::new(
4505 row_range.end - 1,
4506 snapshot.line_len(row_range.end - 1),
4507 ));
4508 cursor_positions.push(anchor.clone()..anchor);
4509 }
4510
4511 self.transact(cx, |this, cx| {
4512 for row_range in row_ranges.into_iter().rev() {
4513 for row in row_range.rev() {
4514 let end_of_line = Point::new(row, snapshot.line_len(row));
4515 let indent = snapshot.indent_size_for_line(row + 1);
4516 let start_of_next_line = Point::new(row + 1, indent.len);
4517
4518 let replace = if snapshot.line_len(row + 1) > indent.len {
4519 " "
4520 } else {
4521 ""
4522 };
4523
4524 this.buffer.update(cx, |buffer, cx| {
4525 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4526 });
4527 }
4528 }
4529
4530 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4531 s.select_anchor_ranges(cursor_positions)
4532 });
4533 });
4534 }
4535
4536 pub fn sort_lines_case_sensitive(
4537 &mut self,
4538 _: &SortLinesCaseSensitive,
4539 cx: &mut ViewContext<Self>,
4540 ) {
4541 self.manipulate_lines(cx, |lines| lines.sort())
4542 }
4543
4544 pub fn sort_lines_case_insensitive(
4545 &mut self,
4546 _: &SortLinesCaseInsensitive,
4547 cx: &mut ViewContext<Self>,
4548 ) {
4549 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4550 }
4551
4552 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4553 self.manipulate_lines(cx, |lines| lines.reverse())
4554 }
4555
4556 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4557 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4558 }
4559
4560 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4561 where
4562 Fn: FnMut(&mut [&str]),
4563 {
4564 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4565 let buffer = self.buffer.read(cx).snapshot(cx);
4566
4567 let mut edits = Vec::new();
4568
4569 let selections = self.selections.all::<Point>(cx);
4570 let mut selections = selections.iter().peekable();
4571 let mut contiguous_row_selections = Vec::new();
4572 let mut new_selections = Vec::new();
4573
4574 while let Some(selection) = selections.next() {
4575 let (start_row, end_row) = consume_contiguous_rows(
4576 &mut contiguous_row_selections,
4577 selection,
4578 &display_map,
4579 &mut selections,
4580 );
4581
4582 let start_point = Point::new(start_row, 0);
4583 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4584 let text = buffer
4585 .text_for_range(start_point..end_point)
4586 .collect::<String>();
4587 let mut lines = text.split("\n").collect_vec();
4588
4589 let lines_len = lines.len();
4590 callback(&mut lines);
4591
4592 // This is a current limitation with selections.
4593 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4594 debug_assert!(
4595 lines.len() == lines_len,
4596 "callback should not change the number of lines"
4597 );
4598
4599 edits.push((start_point..end_point, lines.join("\n")));
4600 let start_anchor = buffer.anchor_after(start_point);
4601 let end_anchor = buffer.anchor_before(end_point);
4602
4603 // Make selection and push
4604 new_selections.push(Selection {
4605 id: selection.id,
4606 start: start_anchor.to_offset(&buffer),
4607 end: end_anchor.to_offset(&buffer),
4608 goal: SelectionGoal::None,
4609 reversed: selection.reversed,
4610 });
4611 }
4612
4613 self.transact(cx, |this, cx| {
4614 this.buffer.update(cx, |buffer, cx| {
4615 buffer.edit(edits, None, cx);
4616 });
4617
4618 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4619 s.select(new_selections);
4620 });
4621
4622 this.request_autoscroll(Autoscroll::fit(), cx);
4623 });
4624 }
4625
4626 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4627 self.manipulate_text(cx, |text| text.to_uppercase())
4628 }
4629
4630 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4631 self.manipulate_text(cx, |text| text.to_lowercase())
4632 }
4633
4634 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4635 self.manipulate_text(cx, |text| {
4636 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4637 // https://github.com/rutrum/convert-case/issues/16
4638 text.split("\n")
4639 .map(|line| line.to_case(Case::Title))
4640 .join("\n")
4641 })
4642 }
4643
4644 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4645 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4646 }
4647
4648 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4649 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4650 }
4651
4652 pub fn convert_to_upper_camel_case(
4653 &mut self,
4654 _: &ConvertToUpperCamelCase,
4655 cx: &mut ViewContext<Self>,
4656 ) {
4657 self.manipulate_text(cx, |text| {
4658 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4659 // https://github.com/rutrum/convert-case/issues/16
4660 text.split("\n")
4661 .map(|line| line.to_case(Case::UpperCamel))
4662 .join("\n")
4663 })
4664 }
4665
4666 pub fn convert_to_lower_camel_case(
4667 &mut self,
4668 _: &ConvertToLowerCamelCase,
4669 cx: &mut ViewContext<Self>,
4670 ) {
4671 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4672 }
4673
4674 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4675 where
4676 Fn: FnMut(&str) -> String,
4677 {
4678 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4679 let buffer = self.buffer.read(cx).snapshot(cx);
4680
4681 let mut new_selections = Vec::new();
4682 let mut edits = Vec::new();
4683 let mut selection_adjustment = 0i32;
4684
4685 for selection in self.selections.all::<usize>(cx) {
4686 let selection_is_empty = selection.is_empty();
4687
4688 let (start, end) = if selection_is_empty {
4689 let word_range = movement::surrounding_word(
4690 &display_map,
4691 selection.start.to_display_point(&display_map),
4692 );
4693 let start = word_range.start.to_offset(&display_map, Bias::Left);
4694 let end = word_range.end.to_offset(&display_map, Bias::Left);
4695 (start, end)
4696 } else {
4697 (selection.start, selection.end)
4698 };
4699
4700 let text = buffer.text_for_range(start..end).collect::<String>();
4701 let old_length = text.len() as i32;
4702 let text = callback(&text);
4703
4704 new_selections.push(Selection {
4705 start: (start as i32 - selection_adjustment) as usize,
4706 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4707 goal: SelectionGoal::None,
4708 ..selection
4709 });
4710
4711 selection_adjustment += old_length - text.len() as i32;
4712
4713 edits.push((start..end, text));
4714 }
4715
4716 self.transact(cx, |this, cx| {
4717 this.buffer.update(cx, |buffer, cx| {
4718 buffer.edit(edits, None, cx);
4719 });
4720
4721 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4722 s.select(new_selections);
4723 });
4724
4725 this.request_autoscroll(Autoscroll::fit(), cx);
4726 });
4727 }
4728
4729 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4731 let buffer = &display_map.buffer_snapshot;
4732 let selections = self.selections.all::<Point>(cx);
4733
4734 let mut edits = Vec::new();
4735 let mut selections_iter = selections.iter().peekable();
4736 while let Some(selection) = selections_iter.next() {
4737 // Avoid duplicating the same lines twice.
4738 let mut rows = selection.spanned_rows(false, &display_map);
4739
4740 while let Some(next_selection) = selections_iter.peek() {
4741 let next_rows = next_selection.spanned_rows(false, &display_map);
4742 if next_rows.start < rows.end {
4743 rows.end = next_rows.end;
4744 selections_iter.next().unwrap();
4745 } else {
4746 break;
4747 }
4748 }
4749
4750 // Copy the text from the selected row region and splice it at the start of the region.
4751 let start = Point::new(rows.start, 0);
4752 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4753 let text = buffer
4754 .text_for_range(start..end)
4755 .chain(Some("\n"))
4756 .collect::<String>();
4757 edits.push((start..start, text));
4758 }
4759
4760 self.transact(cx, |this, cx| {
4761 this.buffer.update(cx, |buffer, cx| {
4762 buffer.edit(edits, None, cx);
4763 });
4764
4765 this.request_autoscroll(Autoscroll::fit(), cx);
4766 });
4767 }
4768
4769 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4770 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4771 let buffer = self.buffer.read(cx).snapshot(cx);
4772
4773 let mut edits = Vec::new();
4774 let mut unfold_ranges = Vec::new();
4775 let mut refold_ranges = Vec::new();
4776
4777 let selections = self.selections.all::<Point>(cx);
4778 let mut selections = selections.iter().peekable();
4779 let mut contiguous_row_selections = Vec::new();
4780 let mut new_selections = Vec::new();
4781
4782 while let Some(selection) = selections.next() {
4783 // Find all the selections that span a contiguous row range
4784 let (start_row, end_row) = consume_contiguous_rows(
4785 &mut contiguous_row_selections,
4786 selection,
4787 &display_map,
4788 &mut selections,
4789 );
4790
4791 // Move the text spanned by the row range to be before the line preceding the row range
4792 if start_row > 0 {
4793 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4794 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4795 let insertion_point = display_map
4796 .prev_line_boundary(Point::new(start_row - 1, 0))
4797 .0;
4798
4799 // Don't move lines across excerpts
4800 if buffer
4801 .excerpt_boundaries_in_range((
4802 Bound::Excluded(insertion_point),
4803 Bound::Included(range_to_move.end),
4804 ))
4805 .next()
4806 .is_none()
4807 {
4808 let text = buffer
4809 .text_for_range(range_to_move.clone())
4810 .flat_map(|s| s.chars())
4811 .skip(1)
4812 .chain(['\n'])
4813 .collect::<String>();
4814
4815 edits.push((
4816 buffer.anchor_after(range_to_move.start)
4817 ..buffer.anchor_before(range_to_move.end),
4818 String::new(),
4819 ));
4820 let insertion_anchor = buffer.anchor_after(insertion_point);
4821 edits.push((insertion_anchor..insertion_anchor, text));
4822
4823 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4824
4825 // Move selections up
4826 new_selections.extend(contiguous_row_selections.drain(..).map(
4827 |mut selection| {
4828 selection.start.row -= row_delta;
4829 selection.end.row -= row_delta;
4830 selection
4831 },
4832 ));
4833
4834 // Move folds up
4835 unfold_ranges.push(range_to_move.clone());
4836 for fold in display_map.folds_in_range(
4837 buffer.anchor_before(range_to_move.start)
4838 ..buffer.anchor_after(range_to_move.end),
4839 ) {
4840 let mut start = fold.range.start.to_point(&buffer);
4841 let mut end = fold.range.end.to_point(&buffer);
4842 start.row -= row_delta;
4843 end.row -= row_delta;
4844 refold_ranges.push(start..end);
4845 }
4846 }
4847 }
4848
4849 // If we didn't move line(s), preserve the existing selections
4850 new_selections.append(&mut contiguous_row_selections);
4851 }
4852
4853 self.transact(cx, |this, cx| {
4854 this.unfold_ranges(unfold_ranges, true, true, cx);
4855 this.buffer.update(cx, |buffer, cx| {
4856 for (range, text) in edits {
4857 buffer.edit([(range, text)], None, cx);
4858 }
4859 });
4860 this.fold_ranges(refold_ranges, true, cx);
4861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4862 s.select(new_selections);
4863 })
4864 });
4865 }
4866
4867 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4868 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4869 let buffer = self.buffer.read(cx).snapshot(cx);
4870
4871 let mut edits = Vec::new();
4872 let mut unfold_ranges = Vec::new();
4873 let mut refold_ranges = Vec::new();
4874
4875 let selections = self.selections.all::<Point>(cx);
4876 let mut selections = selections.iter().peekable();
4877 let mut contiguous_row_selections = Vec::new();
4878 let mut new_selections = Vec::new();
4879
4880 while let Some(selection) = selections.next() {
4881 // Find all the selections that span a contiguous row range
4882 let (start_row, end_row) = consume_contiguous_rows(
4883 &mut contiguous_row_selections,
4884 selection,
4885 &display_map,
4886 &mut selections,
4887 );
4888
4889 // Move the text spanned by the row range to be after the last line of the row range
4890 if end_row <= buffer.max_point().row {
4891 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4892 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4893
4894 // Don't move lines across excerpt boundaries
4895 if buffer
4896 .excerpt_boundaries_in_range((
4897 Bound::Excluded(range_to_move.start),
4898 Bound::Included(insertion_point),
4899 ))
4900 .next()
4901 .is_none()
4902 {
4903 let mut text = String::from("\n");
4904 text.extend(buffer.text_for_range(range_to_move.clone()));
4905 text.pop(); // Drop trailing newline
4906 edits.push((
4907 buffer.anchor_after(range_to_move.start)
4908 ..buffer.anchor_before(range_to_move.end),
4909 String::new(),
4910 ));
4911 let insertion_anchor = buffer.anchor_after(insertion_point);
4912 edits.push((insertion_anchor..insertion_anchor, text));
4913
4914 let row_delta = insertion_point.row - range_to_move.end.row + 1;
4915
4916 // Move selections down
4917 new_selections.extend(contiguous_row_selections.drain(..).map(
4918 |mut selection| {
4919 selection.start.row += row_delta;
4920 selection.end.row += row_delta;
4921 selection
4922 },
4923 ));
4924
4925 // Move folds down
4926 unfold_ranges.push(range_to_move.clone());
4927 for fold in display_map.folds_in_range(
4928 buffer.anchor_before(range_to_move.start)
4929 ..buffer.anchor_after(range_to_move.end),
4930 ) {
4931 let mut start = fold.range.start.to_point(&buffer);
4932 let mut end = fold.range.end.to_point(&buffer);
4933 start.row += row_delta;
4934 end.row += row_delta;
4935 refold_ranges.push(start..end);
4936 }
4937 }
4938 }
4939
4940 // If we didn't move line(s), preserve the existing selections
4941 new_selections.append(&mut contiguous_row_selections);
4942 }
4943
4944 self.transact(cx, |this, cx| {
4945 this.unfold_ranges(unfold_ranges, true, true, cx);
4946 this.buffer.update(cx, |buffer, cx| {
4947 for (range, text) in edits {
4948 buffer.edit([(range, text)], None, cx);
4949 }
4950 });
4951 this.fold_ranges(refold_ranges, true, cx);
4952 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
4953 });
4954 }
4955
4956 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
4957 let text_layout_details = &self.text_layout_details(cx);
4958 self.transact(cx, |this, cx| {
4959 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4960 let mut edits: Vec<(Range<usize>, String)> = Default::default();
4961 let line_mode = s.line_mode;
4962 s.move_with(|display_map, selection| {
4963 if !selection.is_empty() || line_mode {
4964 return;
4965 }
4966
4967 let mut head = selection.head();
4968 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
4969 if head.column() == display_map.line_len(head.row()) {
4970 transpose_offset = display_map
4971 .buffer_snapshot
4972 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
4973 }
4974
4975 if transpose_offset == 0 {
4976 return;
4977 }
4978
4979 *head.column_mut() += 1;
4980 head = display_map.clip_point(head, Bias::Right);
4981 let goal = SelectionGoal::HorizontalPosition(
4982 display_map
4983 .x_for_display_point(head, &text_layout_details)
4984 .into(),
4985 );
4986 selection.collapse_to(head, goal);
4987
4988 let transpose_start = display_map
4989 .buffer_snapshot
4990 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
4991 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
4992 let transpose_end = display_map
4993 .buffer_snapshot
4994 .clip_offset(transpose_offset + 1, Bias::Right);
4995 if let Some(ch) =
4996 display_map.buffer_snapshot.chars_at(transpose_start).next()
4997 {
4998 edits.push((transpose_start..transpose_offset, String::new()));
4999 edits.push((transpose_end..transpose_end, ch.to_string()));
5000 }
5001 }
5002 });
5003 edits
5004 });
5005 this.buffer
5006 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5007 let selections = this.selections.all::<usize>(cx);
5008 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5009 s.select(selections);
5010 });
5011 });
5012 }
5013
5014 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5015 let mut text = String::new();
5016 let buffer = self.buffer.read(cx).snapshot(cx);
5017 let mut selections = self.selections.all::<Point>(cx);
5018 let mut clipboard_selections = Vec::with_capacity(selections.len());
5019 {
5020 let max_point = buffer.max_point();
5021 let mut is_first = true;
5022 for selection in &mut selections {
5023 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5024 if is_entire_line {
5025 selection.start = Point::new(selection.start.row, 0);
5026 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5027 selection.goal = SelectionGoal::None;
5028 }
5029 if is_first {
5030 is_first = false;
5031 } else {
5032 text += "\n";
5033 }
5034 let mut len = 0;
5035 for chunk in buffer.text_for_range(selection.start..selection.end) {
5036 text.push_str(chunk);
5037 len += chunk.len();
5038 }
5039 clipboard_selections.push(ClipboardSelection {
5040 len,
5041 is_entire_line,
5042 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5043 });
5044 }
5045 }
5046
5047 self.transact(cx, |this, cx| {
5048 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5049 s.select(selections);
5050 });
5051 this.insert("", cx);
5052 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5053 });
5054 }
5055
5056 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5057 let selections = self.selections.all::<Point>(cx);
5058 let buffer = self.buffer.read(cx).read(cx);
5059 let mut text = String::new();
5060
5061 let mut clipboard_selections = Vec::with_capacity(selections.len());
5062 {
5063 let max_point = buffer.max_point();
5064 let mut is_first = true;
5065 for selection in selections.iter() {
5066 let mut start = selection.start;
5067 let mut end = selection.end;
5068 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5069 if is_entire_line {
5070 start = Point::new(start.row, 0);
5071 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5072 }
5073 if is_first {
5074 is_first = false;
5075 } else {
5076 text += "\n";
5077 }
5078 let mut len = 0;
5079 for chunk in buffer.text_for_range(start..end) {
5080 text.push_str(chunk);
5081 len += chunk.len();
5082 }
5083 clipboard_selections.push(ClipboardSelection {
5084 len,
5085 is_entire_line,
5086 first_line_indent: buffer.indent_size_for_line(start.row).len,
5087 });
5088 }
5089 }
5090
5091 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5092 }
5093
5094 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5095 if self.read_only(cx) {
5096 return;
5097 }
5098
5099 self.transact(cx, |this, cx| {
5100 if let Some(item) = cx.read_from_clipboard() {
5101 let clipboard_text = Cow::Borrowed(item.text());
5102 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5103 let old_selections = this.selections.all::<usize>(cx);
5104 let all_selections_were_entire_line =
5105 clipboard_selections.iter().all(|s| s.is_entire_line);
5106 let first_selection_indent_column =
5107 clipboard_selections.first().map(|s| s.first_line_indent);
5108 if clipboard_selections.len() != old_selections.len() {
5109 clipboard_selections.drain(..);
5110 }
5111
5112 this.buffer.update(cx, |buffer, cx| {
5113 let snapshot = buffer.read(cx);
5114 let mut start_offset = 0;
5115 let mut edits = Vec::new();
5116 let mut original_indent_columns = Vec::new();
5117 let line_mode = this.selections.line_mode;
5118 for (ix, selection) in old_selections.iter().enumerate() {
5119 let to_insert;
5120 let entire_line;
5121 let original_indent_column;
5122 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5123 let end_offset = start_offset + clipboard_selection.len;
5124 to_insert = &clipboard_text[start_offset..end_offset];
5125 entire_line = clipboard_selection.is_entire_line;
5126 start_offset = end_offset + 1;
5127 original_indent_column =
5128 Some(clipboard_selection.first_line_indent);
5129 } else {
5130 to_insert = clipboard_text.as_str();
5131 entire_line = all_selections_were_entire_line;
5132 original_indent_column = first_selection_indent_column
5133 }
5134
5135 // If the corresponding selection was empty when this slice of the
5136 // clipboard text was written, then the entire line containing the
5137 // selection was copied. If this selection is also currently empty,
5138 // then paste the line before the current line of the buffer.
5139 let range = if selection.is_empty() && !line_mode && entire_line {
5140 let column = selection.start.to_point(&snapshot).column as usize;
5141 let line_start = selection.start - column;
5142 line_start..line_start
5143 } else {
5144 selection.range()
5145 };
5146
5147 edits.push((range, to_insert));
5148 original_indent_columns.extend(original_indent_column);
5149 }
5150 drop(snapshot);
5151
5152 buffer.edit(
5153 edits,
5154 Some(AutoindentMode::Block {
5155 original_indent_columns,
5156 }),
5157 cx,
5158 );
5159 });
5160
5161 let selections = this.selections.all::<usize>(cx);
5162 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5163 } else {
5164 this.insert(&clipboard_text, cx);
5165 }
5166 }
5167 });
5168 }
5169
5170 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5171 if self.read_only(cx) {
5172 return;
5173 }
5174
5175 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5176 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5177 self.change_selections(None, cx, |s| {
5178 s.select_anchors(selections.to_vec());
5179 });
5180 }
5181 self.request_autoscroll(Autoscroll::fit(), cx);
5182 self.unmark_text(cx);
5183 self.refresh_copilot_suggestions(true, cx);
5184 cx.emit(EditorEvent::Edited);
5185 }
5186 }
5187
5188 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5189 if self.read_only(cx) {
5190 return;
5191 }
5192
5193 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5194 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5195 {
5196 self.change_selections(None, cx, |s| {
5197 s.select_anchors(selections.to_vec());
5198 });
5199 }
5200 self.request_autoscroll(Autoscroll::fit(), cx);
5201 self.unmark_text(cx);
5202 self.refresh_copilot_suggestions(true, cx);
5203 cx.emit(EditorEvent::Edited);
5204 }
5205 }
5206
5207 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5208 self.buffer
5209 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5210 }
5211
5212 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5213 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5214 let line_mode = s.line_mode;
5215 s.move_with(|map, selection| {
5216 let cursor = if selection.is_empty() && !line_mode {
5217 movement::left(map, selection.start)
5218 } else {
5219 selection.start
5220 };
5221 selection.collapse_to(cursor, SelectionGoal::None);
5222 });
5223 })
5224 }
5225
5226 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5227 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5228 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5229 })
5230 }
5231
5232 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5234 let line_mode = s.line_mode;
5235 s.move_with(|map, selection| {
5236 let cursor = if selection.is_empty() && !line_mode {
5237 movement::right(map, selection.end)
5238 } else {
5239 selection.end
5240 };
5241 selection.collapse_to(cursor, SelectionGoal::None)
5242 });
5243 })
5244 }
5245
5246 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5247 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5248 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5249 })
5250 }
5251
5252 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5253 if self.take_rename(true, cx).is_some() {
5254 return;
5255 }
5256
5257 if matches!(self.mode, EditorMode::SingleLine) {
5258 cx.propagate();
5259 return;
5260 }
5261
5262 let text_layout_details = &self.text_layout_details(cx);
5263
5264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5265 let line_mode = s.line_mode;
5266 s.move_with(|map, selection| {
5267 if !selection.is_empty() && !line_mode {
5268 selection.goal = SelectionGoal::None;
5269 }
5270 let (cursor, goal) = movement::up(
5271 map,
5272 selection.start,
5273 selection.goal,
5274 false,
5275 &text_layout_details,
5276 );
5277 selection.collapse_to(cursor, goal);
5278 });
5279 })
5280 }
5281
5282 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5283 if self.take_rename(true, cx).is_some() {
5284 return;
5285 }
5286
5287 if matches!(self.mode, EditorMode::SingleLine) {
5288 cx.propagate();
5289 return;
5290 }
5291
5292 let row_count = if let Some(row_count) = self.visible_line_count() {
5293 row_count as u32 - 1
5294 } else {
5295 return;
5296 };
5297
5298 let autoscroll = if action.center_cursor {
5299 Autoscroll::center()
5300 } else {
5301 Autoscroll::fit()
5302 };
5303
5304 let text_layout_details = &self.text_layout_details(cx);
5305
5306 self.change_selections(Some(autoscroll), cx, |s| {
5307 let line_mode = s.line_mode;
5308 s.move_with(|map, selection| {
5309 if !selection.is_empty() && !line_mode {
5310 selection.goal = SelectionGoal::None;
5311 }
5312 let (cursor, goal) = movement::up_by_rows(
5313 map,
5314 selection.end,
5315 row_count,
5316 selection.goal,
5317 false,
5318 &text_layout_details,
5319 );
5320 selection.collapse_to(cursor, goal);
5321 });
5322 });
5323 }
5324
5325 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5326 let text_layout_details = &self.text_layout_details(cx);
5327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5328 s.move_heads_with(|map, head, goal| {
5329 movement::up(map, head, goal, false, &text_layout_details)
5330 })
5331 })
5332 }
5333
5334 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5335 self.take_rename(true, cx);
5336
5337 if self.mode == EditorMode::SingleLine {
5338 cx.propagate();
5339 return;
5340 }
5341
5342 let text_layout_details = &self.text_layout_details(cx);
5343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5344 let line_mode = s.line_mode;
5345 s.move_with(|map, selection| {
5346 if !selection.is_empty() && !line_mode {
5347 selection.goal = SelectionGoal::None;
5348 }
5349 let (cursor, goal) = movement::down(
5350 map,
5351 selection.end,
5352 selection.goal,
5353 false,
5354 &text_layout_details,
5355 );
5356 selection.collapse_to(cursor, goal);
5357 });
5358 });
5359 }
5360
5361 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5362 if self.take_rename(true, cx).is_some() {
5363 return;
5364 }
5365
5366 if self
5367 .context_menu
5368 .write()
5369 .as_mut()
5370 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5371 .unwrap_or(false)
5372 {
5373 return;
5374 }
5375
5376 if matches!(self.mode, EditorMode::SingleLine) {
5377 cx.propagate();
5378 return;
5379 }
5380
5381 let row_count = if let Some(row_count) = self.visible_line_count() {
5382 row_count as u32 - 1
5383 } else {
5384 return;
5385 };
5386
5387 let autoscroll = if action.center_cursor {
5388 Autoscroll::center()
5389 } else {
5390 Autoscroll::fit()
5391 };
5392
5393 let text_layout_details = &self.text_layout_details(cx);
5394 self.change_selections(Some(autoscroll), cx, |s| {
5395 let line_mode = s.line_mode;
5396 s.move_with(|map, selection| {
5397 if !selection.is_empty() && !line_mode {
5398 selection.goal = SelectionGoal::None;
5399 }
5400 let (cursor, goal) = movement::down_by_rows(
5401 map,
5402 selection.end,
5403 row_count,
5404 selection.goal,
5405 false,
5406 &text_layout_details,
5407 );
5408 selection.collapse_to(cursor, goal);
5409 });
5410 });
5411 }
5412
5413 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5414 let text_layout_details = &self.text_layout_details(cx);
5415 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5416 s.move_heads_with(|map, head, goal| {
5417 movement::down(map, head, goal, false, &text_layout_details)
5418 })
5419 });
5420 }
5421
5422 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5423 if let Some(context_menu) = self.context_menu.write().as_mut() {
5424 context_menu.select_first(self.project.as_ref(), cx);
5425 }
5426 }
5427
5428 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5429 if let Some(context_menu) = self.context_menu.write().as_mut() {
5430 context_menu.select_prev(self.project.as_ref(), cx);
5431 }
5432 }
5433
5434 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5435 if let Some(context_menu) = self.context_menu.write().as_mut() {
5436 context_menu.select_next(self.project.as_ref(), cx);
5437 }
5438 }
5439
5440 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5441 if let Some(context_menu) = self.context_menu.write().as_mut() {
5442 context_menu.select_last(self.project.as_ref(), cx);
5443 }
5444 }
5445
5446 pub fn move_to_previous_word_start(
5447 &mut self,
5448 _: &MoveToPreviousWordStart,
5449 cx: &mut ViewContext<Self>,
5450 ) {
5451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5452 s.move_cursors_with(|map, head, _| {
5453 (
5454 movement::previous_word_start(map, head),
5455 SelectionGoal::None,
5456 )
5457 });
5458 })
5459 }
5460
5461 pub fn move_to_previous_subword_start(
5462 &mut self,
5463 _: &MoveToPreviousSubwordStart,
5464 cx: &mut ViewContext<Self>,
5465 ) {
5466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5467 s.move_cursors_with(|map, head, _| {
5468 (
5469 movement::previous_subword_start(map, head),
5470 SelectionGoal::None,
5471 )
5472 });
5473 })
5474 }
5475
5476 pub fn select_to_previous_word_start(
5477 &mut self,
5478 _: &SelectToPreviousWordStart,
5479 cx: &mut ViewContext<Self>,
5480 ) {
5481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5482 s.move_heads_with(|map, head, _| {
5483 (
5484 movement::previous_word_start(map, head),
5485 SelectionGoal::None,
5486 )
5487 });
5488 })
5489 }
5490
5491 pub fn select_to_previous_subword_start(
5492 &mut self,
5493 _: &SelectToPreviousSubwordStart,
5494 cx: &mut ViewContext<Self>,
5495 ) {
5496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5497 s.move_heads_with(|map, head, _| {
5498 (
5499 movement::previous_subword_start(map, head),
5500 SelectionGoal::None,
5501 )
5502 });
5503 })
5504 }
5505
5506 pub fn delete_to_previous_word_start(
5507 &mut self,
5508 _: &DeleteToPreviousWordStart,
5509 cx: &mut ViewContext<Self>,
5510 ) {
5511 self.transact(cx, |this, cx| {
5512 this.select_autoclose_pair(cx);
5513 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5514 let line_mode = s.line_mode;
5515 s.move_with(|map, selection| {
5516 if selection.is_empty() && !line_mode {
5517 let cursor = movement::previous_word_start(map, selection.head());
5518 selection.set_head(cursor, SelectionGoal::None);
5519 }
5520 });
5521 });
5522 this.insert("", cx);
5523 });
5524 }
5525
5526 pub fn delete_to_previous_subword_start(
5527 &mut self,
5528 _: &DeleteToPreviousSubwordStart,
5529 cx: &mut ViewContext<Self>,
5530 ) {
5531 self.transact(cx, |this, cx| {
5532 this.select_autoclose_pair(cx);
5533 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5534 let line_mode = s.line_mode;
5535 s.move_with(|map, selection| {
5536 if selection.is_empty() && !line_mode {
5537 let cursor = movement::previous_subword_start(map, selection.head());
5538 selection.set_head(cursor, SelectionGoal::None);
5539 }
5540 });
5541 });
5542 this.insert("", cx);
5543 });
5544 }
5545
5546 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5548 s.move_cursors_with(|map, head, _| {
5549 (movement::next_word_end(map, head), SelectionGoal::None)
5550 });
5551 })
5552 }
5553
5554 pub fn move_to_next_subword_end(
5555 &mut self,
5556 _: &MoveToNextSubwordEnd,
5557 cx: &mut ViewContext<Self>,
5558 ) {
5559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5560 s.move_cursors_with(|map, head, _| {
5561 (movement::next_subword_end(map, head), SelectionGoal::None)
5562 });
5563 })
5564 }
5565
5566 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5567 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5568 s.move_heads_with(|map, head, _| {
5569 (movement::next_word_end(map, head), SelectionGoal::None)
5570 });
5571 })
5572 }
5573
5574 pub fn select_to_next_subword_end(
5575 &mut self,
5576 _: &SelectToNextSubwordEnd,
5577 cx: &mut ViewContext<Self>,
5578 ) {
5579 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5580 s.move_heads_with(|map, head, _| {
5581 (movement::next_subword_end(map, head), SelectionGoal::None)
5582 });
5583 })
5584 }
5585
5586 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5587 self.transact(cx, |this, cx| {
5588 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5589 let line_mode = s.line_mode;
5590 s.move_with(|map, selection| {
5591 if selection.is_empty() && !line_mode {
5592 let cursor = movement::next_word_end(map, selection.head());
5593 selection.set_head(cursor, SelectionGoal::None);
5594 }
5595 });
5596 });
5597 this.insert("", cx);
5598 });
5599 }
5600
5601 pub fn delete_to_next_subword_end(
5602 &mut self,
5603 _: &DeleteToNextSubwordEnd,
5604 cx: &mut ViewContext<Self>,
5605 ) {
5606 self.transact(cx, |this, cx| {
5607 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5608 s.move_with(|map, selection| {
5609 if selection.is_empty() {
5610 let cursor = movement::next_subword_end(map, selection.head());
5611 selection.set_head(cursor, SelectionGoal::None);
5612 }
5613 });
5614 });
5615 this.insert("", cx);
5616 });
5617 }
5618
5619 pub fn move_to_beginning_of_line(
5620 &mut self,
5621 _: &MoveToBeginningOfLine,
5622 cx: &mut ViewContext<Self>,
5623 ) {
5624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5625 s.move_cursors_with(|map, head, _| {
5626 (
5627 movement::indented_line_beginning(map, head, true),
5628 SelectionGoal::None,
5629 )
5630 });
5631 })
5632 }
5633
5634 pub fn select_to_beginning_of_line(
5635 &mut self,
5636 action: &SelectToBeginningOfLine,
5637 cx: &mut ViewContext<Self>,
5638 ) {
5639 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5640 s.move_heads_with(|map, head, _| {
5641 (
5642 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5643 SelectionGoal::None,
5644 )
5645 });
5646 });
5647 }
5648
5649 pub fn delete_to_beginning_of_line(
5650 &mut self,
5651 _: &DeleteToBeginningOfLine,
5652 cx: &mut ViewContext<Self>,
5653 ) {
5654 self.transact(cx, |this, cx| {
5655 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5656 s.move_with(|_, selection| {
5657 selection.reversed = true;
5658 });
5659 });
5660
5661 this.select_to_beginning_of_line(
5662 &SelectToBeginningOfLine {
5663 stop_at_soft_wraps: false,
5664 },
5665 cx,
5666 );
5667 this.backspace(&Backspace, cx);
5668 });
5669 }
5670
5671 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5673 s.move_cursors_with(|map, head, _| {
5674 (movement::line_end(map, head, true), SelectionGoal::None)
5675 });
5676 })
5677 }
5678
5679 pub fn select_to_end_of_line(
5680 &mut self,
5681 action: &SelectToEndOfLine,
5682 cx: &mut ViewContext<Self>,
5683 ) {
5684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5685 s.move_heads_with(|map, head, _| {
5686 (
5687 movement::line_end(map, head, action.stop_at_soft_wraps),
5688 SelectionGoal::None,
5689 )
5690 });
5691 })
5692 }
5693
5694 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5695 self.transact(cx, |this, cx| {
5696 this.select_to_end_of_line(
5697 &SelectToEndOfLine {
5698 stop_at_soft_wraps: false,
5699 },
5700 cx,
5701 );
5702 this.delete(&Delete, cx);
5703 });
5704 }
5705
5706 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5707 self.transact(cx, |this, cx| {
5708 this.select_to_end_of_line(
5709 &SelectToEndOfLine {
5710 stop_at_soft_wraps: false,
5711 },
5712 cx,
5713 );
5714 this.cut(&Cut, cx);
5715 });
5716 }
5717
5718 pub fn move_to_start_of_paragraph(
5719 &mut self,
5720 _: &MoveToStartOfParagraph,
5721 cx: &mut ViewContext<Self>,
5722 ) {
5723 if matches!(self.mode, EditorMode::SingleLine) {
5724 cx.propagate();
5725 return;
5726 }
5727
5728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5729 s.move_with(|map, selection| {
5730 selection.collapse_to(
5731 movement::start_of_paragraph(map, selection.head(), 1),
5732 SelectionGoal::None,
5733 )
5734 });
5735 })
5736 }
5737
5738 pub fn move_to_end_of_paragraph(
5739 &mut self,
5740 _: &MoveToEndOfParagraph,
5741 cx: &mut ViewContext<Self>,
5742 ) {
5743 if matches!(self.mode, EditorMode::SingleLine) {
5744 cx.propagate();
5745 return;
5746 }
5747
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.move_with(|map, selection| {
5750 selection.collapse_to(
5751 movement::end_of_paragraph(map, selection.head(), 1),
5752 SelectionGoal::None,
5753 )
5754 });
5755 })
5756 }
5757
5758 pub fn select_to_start_of_paragraph(
5759 &mut self,
5760 _: &SelectToStartOfParagraph,
5761 cx: &mut ViewContext<Self>,
5762 ) {
5763 if matches!(self.mode, EditorMode::SingleLine) {
5764 cx.propagate();
5765 return;
5766 }
5767
5768 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5769 s.move_heads_with(|map, head, _| {
5770 (
5771 movement::start_of_paragraph(map, head, 1),
5772 SelectionGoal::None,
5773 )
5774 });
5775 })
5776 }
5777
5778 pub fn select_to_end_of_paragraph(
5779 &mut self,
5780 _: &SelectToEndOfParagraph,
5781 cx: &mut ViewContext<Self>,
5782 ) {
5783 if matches!(self.mode, EditorMode::SingleLine) {
5784 cx.propagate();
5785 return;
5786 }
5787
5788 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5789 s.move_heads_with(|map, head, _| {
5790 (
5791 movement::end_of_paragraph(map, head, 1),
5792 SelectionGoal::None,
5793 )
5794 });
5795 })
5796 }
5797
5798 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5799 if matches!(self.mode, EditorMode::SingleLine) {
5800 cx.propagate();
5801 return;
5802 }
5803
5804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5805 s.select_ranges(vec![0..0]);
5806 });
5807 }
5808
5809 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5810 let mut selection = self.selections.last::<Point>(cx);
5811 selection.set_head(Point::zero(), SelectionGoal::None);
5812
5813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5814 s.select(vec![selection]);
5815 });
5816 }
5817
5818 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5819 if matches!(self.mode, EditorMode::SingleLine) {
5820 cx.propagate();
5821 return;
5822 }
5823
5824 let cursor = self.buffer.read(cx).read(cx).len();
5825 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5826 s.select_ranges(vec![cursor..cursor])
5827 });
5828 }
5829
5830 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5831 self.nav_history = nav_history;
5832 }
5833
5834 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5835 self.nav_history.as_ref()
5836 }
5837
5838 fn push_to_nav_history(
5839 &mut self,
5840 cursor_anchor: Anchor,
5841 new_position: Option<Point>,
5842 cx: &mut ViewContext<Self>,
5843 ) {
5844 if let Some(nav_history) = self.nav_history.as_mut() {
5845 let buffer = self.buffer.read(cx).read(cx);
5846 let cursor_position = cursor_anchor.to_point(&buffer);
5847 let scroll_state = self.scroll_manager.anchor();
5848 let scroll_top_row = scroll_state.top_row(&buffer);
5849 drop(buffer);
5850
5851 if let Some(new_position) = new_position {
5852 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
5853 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
5854 return;
5855 }
5856 }
5857
5858 nav_history.push(
5859 Some(NavigationData {
5860 cursor_anchor,
5861 cursor_position,
5862 scroll_anchor: scroll_state,
5863 scroll_top_row,
5864 }),
5865 cx,
5866 );
5867 }
5868 }
5869
5870 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
5871 let buffer = self.buffer.read(cx).snapshot(cx);
5872 let mut selection = self.selections.first::<usize>(cx);
5873 selection.set_head(buffer.len(), SelectionGoal::None);
5874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5875 s.select(vec![selection]);
5876 });
5877 }
5878
5879 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
5880 let end = self.buffer.read(cx).read(cx).len();
5881 self.change_selections(None, cx, |s| {
5882 s.select_ranges(vec![0..end]);
5883 });
5884 }
5885
5886 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
5887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5888 let mut selections = self.selections.all::<Point>(cx);
5889 let max_point = display_map.buffer_snapshot.max_point();
5890 for selection in &mut selections {
5891 let rows = selection.spanned_rows(true, &display_map);
5892 selection.start = Point::new(rows.start, 0);
5893 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
5894 selection.reversed = false;
5895 }
5896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5897 s.select(selections);
5898 });
5899 }
5900
5901 pub fn split_selection_into_lines(
5902 &mut self,
5903 _: &SplitSelectionIntoLines,
5904 cx: &mut ViewContext<Self>,
5905 ) {
5906 let mut to_unfold = Vec::new();
5907 let mut new_selection_ranges = Vec::new();
5908 {
5909 let selections = self.selections.all::<Point>(cx);
5910 let buffer = self.buffer.read(cx).read(cx);
5911 for selection in selections {
5912 for row in selection.start.row..selection.end.row {
5913 let cursor = Point::new(row, buffer.line_len(row));
5914 new_selection_ranges.push(cursor..cursor);
5915 }
5916 new_selection_ranges.push(selection.end..selection.end);
5917 to_unfold.push(selection.start..selection.end);
5918 }
5919 }
5920 self.unfold_ranges(to_unfold, true, true, cx);
5921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5922 s.select_ranges(new_selection_ranges);
5923 });
5924 }
5925
5926 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
5927 self.add_selection(true, cx);
5928 }
5929
5930 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
5931 self.add_selection(false, cx);
5932 }
5933
5934 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
5935 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5936 let mut selections = self.selections.all::<Point>(cx);
5937 let text_layout_details = self.text_layout_details(cx);
5938 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
5939 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
5940 let range = oldest_selection.display_range(&display_map).sorted();
5941
5942 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
5943 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
5944 let positions = start_x.min(end_x)..start_x.max(end_x);
5945
5946 selections.clear();
5947 let mut stack = Vec::new();
5948 for row in range.start.row()..=range.end.row() {
5949 if let Some(selection) = self.selections.build_columnar_selection(
5950 &display_map,
5951 row,
5952 &positions,
5953 oldest_selection.reversed,
5954 &text_layout_details,
5955 ) {
5956 stack.push(selection.id);
5957 selections.push(selection);
5958 }
5959 }
5960
5961 if above {
5962 stack.reverse();
5963 }
5964
5965 AddSelectionsState { above, stack }
5966 });
5967
5968 let last_added_selection = *state.stack.last().unwrap();
5969 let mut new_selections = Vec::new();
5970 if above == state.above {
5971 let end_row = if above {
5972 0
5973 } else {
5974 display_map.max_point().row()
5975 };
5976
5977 'outer: for selection in selections {
5978 if selection.id == last_added_selection {
5979 let range = selection.display_range(&display_map).sorted();
5980 debug_assert_eq!(range.start.row(), range.end.row());
5981 let mut row = range.start.row();
5982 let positions =
5983 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
5984 px(start)..px(end)
5985 } else {
5986 let start_x =
5987 display_map.x_for_display_point(range.start, &text_layout_details);
5988 let end_x =
5989 display_map.x_for_display_point(range.end, &text_layout_details);
5990 start_x.min(end_x)..start_x.max(end_x)
5991 };
5992
5993 while row != end_row {
5994 if above {
5995 row -= 1;
5996 } else {
5997 row += 1;
5998 }
5999
6000 if let Some(new_selection) = self.selections.build_columnar_selection(
6001 &display_map,
6002 row,
6003 &positions,
6004 selection.reversed,
6005 &text_layout_details,
6006 ) {
6007 state.stack.push(new_selection.id);
6008 if above {
6009 new_selections.push(new_selection);
6010 new_selections.push(selection);
6011 } else {
6012 new_selections.push(selection);
6013 new_selections.push(new_selection);
6014 }
6015
6016 continue 'outer;
6017 }
6018 }
6019 }
6020
6021 new_selections.push(selection);
6022 }
6023 } else {
6024 new_selections = selections;
6025 new_selections.retain(|s| s.id != last_added_selection);
6026 state.stack.pop();
6027 }
6028
6029 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6030 s.select(new_selections);
6031 });
6032 if state.stack.len() > 1 {
6033 self.add_selections_state = Some(state);
6034 }
6035 }
6036
6037 pub fn select_next_match_internal(
6038 &mut self,
6039 display_map: &DisplaySnapshot,
6040 replace_newest: bool,
6041 autoscroll: Option<Autoscroll>,
6042 cx: &mut ViewContext<Self>,
6043 ) -> Result<()> {
6044 fn select_next_match_ranges(
6045 this: &mut Editor,
6046 range: Range<usize>,
6047 replace_newest: bool,
6048 auto_scroll: Option<Autoscroll>,
6049 cx: &mut ViewContext<Editor>,
6050 ) {
6051 this.unfold_ranges([range.clone()], false, true, cx);
6052 this.change_selections(auto_scroll, cx, |s| {
6053 if replace_newest {
6054 s.delete(s.newest_anchor().id);
6055 }
6056 s.insert_range(range.clone());
6057 });
6058 }
6059
6060 let buffer = &display_map.buffer_snapshot;
6061 let mut selections = self.selections.all::<usize>(cx);
6062 if let Some(mut select_next_state) = self.select_next_state.take() {
6063 let query = &select_next_state.query;
6064 if !select_next_state.done {
6065 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6066 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6067 let mut next_selected_range = None;
6068
6069 let bytes_after_last_selection =
6070 buffer.bytes_in_range(last_selection.end..buffer.len());
6071 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6072 let query_matches = query
6073 .stream_find_iter(bytes_after_last_selection)
6074 .map(|result| (last_selection.end, result))
6075 .chain(
6076 query
6077 .stream_find_iter(bytes_before_first_selection)
6078 .map(|result| (0, result)),
6079 );
6080
6081 for (start_offset, query_match) in query_matches {
6082 let query_match = query_match.unwrap(); // can only fail due to I/O
6083 let offset_range =
6084 start_offset + query_match.start()..start_offset + query_match.end();
6085 let display_range = offset_range.start.to_display_point(&display_map)
6086 ..offset_range.end.to_display_point(&display_map);
6087
6088 if !select_next_state.wordwise
6089 || (!movement::is_inside_word(&display_map, display_range.start)
6090 && !movement::is_inside_word(&display_map, display_range.end))
6091 {
6092 if selections
6093 .iter()
6094 .find(|selection| selection.range().overlaps(&offset_range))
6095 .is_none()
6096 {
6097 next_selected_range = Some(offset_range);
6098 break;
6099 }
6100 }
6101 }
6102
6103 if let Some(next_selected_range) = next_selected_range {
6104 select_next_match_ranges(
6105 self,
6106 next_selected_range,
6107 replace_newest,
6108 autoscroll,
6109 cx,
6110 );
6111 } else {
6112 select_next_state.done = true;
6113 }
6114 }
6115
6116 self.select_next_state = Some(select_next_state);
6117 } else {
6118 let mut only_carets = true;
6119 let mut same_text_selected = true;
6120 let mut selected_text = None;
6121
6122 let mut selections_iter = selections.iter().peekable();
6123 while let Some(selection) = selections_iter.next() {
6124 if selection.start != selection.end {
6125 only_carets = false;
6126 }
6127
6128 if same_text_selected {
6129 if selected_text.is_none() {
6130 selected_text =
6131 Some(buffer.text_for_range(selection.range()).collect::<String>());
6132 }
6133
6134 if let Some(next_selection) = selections_iter.peek() {
6135 if next_selection.range().len() == selection.range().len() {
6136 let next_selected_text = buffer
6137 .text_for_range(next_selection.range())
6138 .collect::<String>();
6139 if Some(next_selected_text) != selected_text {
6140 same_text_selected = false;
6141 selected_text = None;
6142 }
6143 } else {
6144 same_text_selected = false;
6145 selected_text = None;
6146 }
6147 }
6148 }
6149 }
6150
6151 if only_carets {
6152 for selection in &mut selections {
6153 let word_range = movement::surrounding_word(
6154 &display_map,
6155 selection.start.to_display_point(&display_map),
6156 );
6157 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6158 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6159 selection.goal = SelectionGoal::None;
6160 selection.reversed = false;
6161 select_next_match_ranges(
6162 self,
6163 selection.start..selection.end,
6164 replace_newest,
6165 autoscroll,
6166 cx,
6167 );
6168 }
6169
6170 if selections.len() == 1 {
6171 let selection = selections
6172 .last()
6173 .expect("ensured that there's only one selection");
6174 let query = buffer
6175 .text_for_range(selection.start..selection.end)
6176 .collect::<String>();
6177 let is_empty = query.is_empty();
6178 let select_state = SelectNextState {
6179 query: AhoCorasick::new(&[query])?,
6180 wordwise: true,
6181 done: is_empty,
6182 };
6183 self.select_next_state = Some(select_state);
6184 } else {
6185 self.select_next_state = None;
6186 }
6187 } else if let Some(selected_text) = selected_text {
6188 self.select_next_state = Some(SelectNextState {
6189 query: AhoCorasick::new(&[selected_text])?,
6190 wordwise: false,
6191 done: false,
6192 });
6193 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6194 }
6195 }
6196 Ok(())
6197 }
6198
6199 pub fn select_all_matches(
6200 &mut self,
6201 action: &SelectAllMatches,
6202 cx: &mut ViewContext<Self>,
6203 ) -> Result<()> {
6204 self.push_to_selection_history();
6205 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6206
6207 loop {
6208 self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
6209
6210 if self
6211 .select_next_state
6212 .as_ref()
6213 .map(|selection_state| selection_state.done)
6214 .unwrap_or(true)
6215 {
6216 break;
6217 }
6218 }
6219
6220 Ok(())
6221 }
6222
6223 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6224 self.push_to_selection_history();
6225 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6226 self.select_next_match_internal(
6227 &display_map,
6228 action.replace_newest,
6229 Some(Autoscroll::newest()),
6230 cx,
6231 )?;
6232 Ok(())
6233 }
6234
6235 pub fn select_previous(
6236 &mut self,
6237 action: &SelectPrevious,
6238 cx: &mut ViewContext<Self>,
6239 ) -> Result<()> {
6240 self.push_to_selection_history();
6241 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6242 let buffer = &display_map.buffer_snapshot;
6243 let mut selections = self.selections.all::<usize>(cx);
6244 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6245 let query = &select_prev_state.query;
6246 if !select_prev_state.done {
6247 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6248 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6249 let mut next_selected_range = None;
6250 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6251 let bytes_before_last_selection =
6252 buffer.reversed_bytes_in_range(0..last_selection.start);
6253 let bytes_after_first_selection =
6254 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6255 let query_matches = query
6256 .stream_find_iter(bytes_before_last_selection)
6257 .map(|result| (last_selection.start, result))
6258 .chain(
6259 query
6260 .stream_find_iter(bytes_after_first_selection)
6261 .map(|result| (buffer.len(), result)),
6262 );
6263 for (end_offset, query_match) in query_matches {
6264 let query_match = query_match.unwrap(); // can only fail due to I/O
6265 let offset_range =
6266 end_offset - query_match.end()..end_offset - query_match.start();
6267 let display_range = offset_range.start.to_display_point(&display_map)
6268 ..offset_range.end.to_display_point(&display_map);
6269
6270 if !select_prev_state.wordwise
6271 || (!movement::is_inside_word(&display_map, display_range.start)
6272 && !movement::is_inside_word(&display_map, display_range.end))
6273 {
6274 next_selected_range = Some(offset_range);
6275 break;
6276 }
6277 }
6278
6279 if let Some(next_selected_range) = next_selected_range {
6280 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6281 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6282 if action.replace_newest {
6283 s.delete(s.newest_anchor().id);
6284 }
6285 s.insert_range(next_selected_range);
6286 });
6287 } else {
6288 select_prev_state.done = true;
6289 }
6290 }
6291
6292 self.select_prev_state = Some(select_prev_state);
6293 } else {
6294 let mut only_carets = true;
6295 let mut same_text_selected = true;
6296 let mut selected_text = None;
6297
6298 let mut selections_iter = selections.iter().peekable();
6299 while let Some(selection) = selections_iter.next() {
6300 if selection.start != selection.end {
6301 only_carets = false;
6302 }
6303
6304 if same_text_selected {
6305 if selected_text.is_none() {
6306 selected_text =
6307 Some(buffer.text_for_range(selection.range()).collect::<String>());
6308 }
6309
6310 if let Some(next_selection) = selections_iter.peek() {
6311 if next_selection.range().len() == selection.range().len() {
6312 let next_selected_text = buffer
6313 .text_for_range(next_selection.range())
6314 .collect::<String>();
6315 if Some(next_selected_text) != selected_text {
6316 same_text_selected = false;
6317 selected_text = None;
6318 }
6319 } else {
6320 same_text_selected = false;
6321 selected_text = None;
6322 }
6323 }
6324 }
6325 }
6326
6327 if only_carets {
6328 for selection in &mut selections {
6329 let word_range = movement::surrounding_word(
6330 &display_map,
6331 selection.start.to_display_point(&display_map),
6332 );
6333 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6334 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6335 selection.goal = SelectionGoal::None;
6336 selection.reversed = false;
6337 }
6338 if selections.len() == 1 {
6339 let selection = selections
6340 .last()
6341 .expect("ensured that there's only one selection");
6342 let query = buffer
6343 .text_for_range(selection.start..selection.end)
6344 .collect::<String>();
6345 let is_empty = query.is_empty();
6346 let select_state = SelectNextState {
6347 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6348 wordwise: true,
6349 done: is_empty,
6350 };
6351 self.select_prev_state = Some(select_state);
6352 } else {
6353 self.select_prev_state = None;
6354 }
6355
6356 self.unfold_ranges(
6357 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6358 false,
6359 true,
6360 cx,
6361 );
6362 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6363 s.select(selections);
6364 });
6365 } else if let Some(selected_text) = selected_text {
6366 self.select_prev_state = Some(SelectNextState {
6367 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6368 wordwise: false,
6369 done: false,
6370 });
6371 self.select_previous(action, cx)?;
6372 }
6373 }
6374 Ok(())
6375 }
6376
6377 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6378 let text_layout_details = &self.text_layout_details(cx);
6379 self.transact(cx, |this, cx| {
6380 let mut selections = this.selections.all::<Point>(cx);
6381 let mut edits = Vec::new();
6382 let mut selection_edit_ranges = Vec::new();
6383 let mut last_toggled_row = None;
6384 let snapshot = this.buffer.read(cx).read(cx);
6385 let empty_str: Arc<str> = "".into();
6386 let mut suffixes_inserted = Vec::new();
6387
6388 fn comment_prefix_range(
6389 snapshot: &MultiBufferSnapshot,
6390 row: u32,
6391 comment_prefix: &str,
6392 comment_prefix_whitespace: &str,
6393 ) -> Range<Point> {
6394 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6395
6396 let mut line_bytes = snapshot
6397 .bytes_in_range(start..snapshot.max_point())
6398 .flatten()
6399 .copied();
6400
6401 // If this line currently begins with the line comment prefix, then record
6402 // the range containing the prefix.
6403 if line_bytes
6404 .by_ref()
6405 .take(comment_prefix.len())
6406 .eq(comment_prefix.bytes())
6407 {
6408 // Include any whitespace that matches the comment prefix.
6409 let matching_whitespace_len = line_bytes
6410 .zip(comment_prefix_whitespace.bytes())
6411 .take_while(|(a, b)| a == b)
6412 .count() as u32;
6413 let end = Point::new(
6414 start.row,
6415 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6416 );
6417 start..end
6418 } else {
6419 start..start
6420 }
6421 }
6422
6423 fn comment_suffix_range(
6424 snapshot: &MultiBufferSnapshot,
6425 row: u32,
6426 comment_suffix: &str,
6427 comment_suffix_has_leading_space: bool,
6428 ) -> Range<Point> {
6429 let end = Point::new(row, snapshot.line_len(row));
6430 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6431
6432 let mut line_end_bytes = snapshot
6433 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6434 .flatten()
6435 .copied();
6436
6437 let leading_space_len = if suffix_start_column > 0
6438 && line_end_bytes.next() == Some(b' ')
6439 && comment_suffix_has_leading_space
6440 {
6441 1
6442 } else {
6443 0
6444 };
6445
6446 // If this line currently begins with the line comment prefix, then record
6447 // the range containing the prefix.
6448 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6449 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6450 start..end
6451 } else {
6452 end..end
6453 }
6454 }
6455
6456 // TODO: Handle selections that cross excerpts
6457 for selection in &mut selections {
6458 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6459 let language = if let Some(language) =
6460 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6461 {
6462 language
6463 } else {
6464 continue;
6465 };
6466
6467 selection_edit_ranges.clear();
6468
6469 // If multiple selections contain a given row, avoid processing that
6470 // row more than once.
6471 let mut start_row = selection.start.row;
6472 if last_toggled_row == Some(start_row) {
6473 start_row += 1;
6474 }
6475 let end_row =
6476 if selection.end.row > selection.start.row && selection.end.column == 0 {
6477 selection.end.row - 1
6478 } else {
6479 selection.end.row
6480 };
6481 last_toggled_row = Some(end_row);
6482
6483 if start_row > end_row {
6484 continue;
6485 }
6486
6487 // If the language has line comments, toggle those.
6488 if let Some(full_comment_prefix) = language.line_comment_prefix() {
6489 // Split the comment prefix's trailing whitespace into a separate string,
6490 // as that portion won't be used for detecting if a line is a comment.
6491 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6492 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6493 let mut all_selection_lines_are_comments = true;
6494
6495 for row in start_row..=end_row {
6496 if snapshot.is_line_blank(row) && start_row < end_row {
6497 continue;
6498 }
6499
6500 let prefix_range = comment_prefix_range(
6501 snapshot.deref(),
6502 row,
6503 comment_prefix,
6504 comment_prefix_whitespace,
6505 );
6506 if prefix_range.is_empty() {
6507 all_selection_lines_are_comments = false;
6508 }
6509 selection_edit_ranges.push(prefix_range);
6510 }
6511
6512 if all_selection_lines_are_comments {
6513 edits.extend(
6514 selection_edit_ranges
6515 .iter()
6516 .cloned()
6517 .map(|range| (range, empty_str.clone())),
6518 );
6519 } else {
6520 let min_column = selection_edit_ranges
6521 .iter()
6522 .map(|r| r.start.column)
6523 .min()
6524 .unwrap_or(0);
6525 edits.extend(selection_edit_ranges.iter().map(|range| {
6526 let position = Point::new(range.start.row, min_column);
6527 (position..position, full_comment_prefix.clone())
6528 }));
6529 }
6530 } else if let Some((full_comment_prefix, comment_suffix)) =
6531 language.block_comment_delimiters()
6532 {
6533 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6534 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6535 let prefix_range = comment_prefix_range(
6536 snapshot.deref(),
6537 start_row,
6538 comment_prefix,
6539 comment_prefix_whitespace,
6540 );
6541 let suffix_range = comment_suffix_range(
6542 snapshot.deref(),
6543 end_row,
6544 comment_suffix.trim_start_matches(' '),
6545 comment_suffix.starts_with(' '),
6546 );
6547
6548 if prefix_range.is_empty() || suffix_range.is_empty() {
6549 edits.push((
6550 prefix_range.start..prefix_range.start,
6551 full_comment_prefix.clone(),
6552 ));
6553 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6554 suffixes_inserted.push((end_row, comment_suffix.len()));
6555 } else {
6556 edits.push((prefix_range, empty_str.clone()));
6557 edits.push((suffix_range, empty_str.clone()));
6558 }
6559 } else {
6560 continue;
6561 }
6562 }
6563
6564 drop(snapshot);
6565 this.buffer.update(cx, |buffer, cx| {
6566 buffer.edit(edits, None, cx);
6567 });
6568
6569 // Adjust selections so that they end before any comment suffixes that
6570 // were inserted.
6571 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6572 let mut selections = this.selections.all::<Point>(cx);
6573 let snapshot = this.buffer.read(cx).read(cx);
6574 for selection in &mut selections {
6575 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6576 match row.cmp(&selection.end.row) {
6577 Ordering::Less => {
6578 suffixes_inserted.next();
6579 continue;
6580 }
6581 Ordering::Greater => break,
6582 Ordering::Equal => {
6583 if selection.end.column == snapshot.line_len(row) {
6584 if selection.is_empty() {
6585 selection.start.column -= suffix_len as u32;
6586 }
6587 selection.end.column -= suffix_len as u32;
6588 }
6589 break;
6590 }
6591 }
6592 }
6593 }
6594
6595 drop(snapshot);
6596 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6597
6598 let selections = this.selections.all::<Point>(cx);
6599 let selections_on_single_row = selections.windows(2).all(|selections| {
6600 selections[0].start.row == selections[1].start.row
6601 && selections[0].end.row == selections[1].end.row
6602 && selections[0].start.row == selections[0].end.row
6603 });
6604 let selections_selecting = selections
6605 .iter()
6606 .any(|selection| selection.start != selection.end);
6607 let advance_downwards = action.advance_downwards
6608 && selections_on_single_row
6609 && !selections_selecting
6610 && this.mode != EditorMode::SingleLine;
6611
6612 if advance_downwards {
6613 let snapshot = this.buffer.read(cx).snapshot(cx);
6614
6615 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6616 s.move_cursors_with(|display_snapshot, display_point, _| {
6617 let mut point = display_point.to_point(display_snapshot);
6618 point.row += 1;
6619 point = snapshot.clip_point(point, Bias::Left);
6620 let display_point = point.to_display_point(display_snapshot);
6621 let goal = SelectionGoal::HorizontalPosition(
6622 display_snapshot
6623 .x_for_display_point(display_point, &text_layout_details)
6624 .into(),
6625 );
6626 (display_point, goal)
6627 })
6628 });
6629 }
6630 });
6631 }
6632
6633 pub fn select_larger_syntax_node(
6634 &mut self,
6635 _: &SelectLargerSyntaxNode,
6636 cx: &mut ViewContext<Self>,
6637 ) {
6638 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6639 let buffer = self.buffer.read(cx).snapshot(cx);
6640 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6641
6642 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6643 let mut selected_larger_node = false;
6644 let new_selections = old_selections
6645 .iter()
6646 .map(|selection| {
6647 let old_range = selection.start..selection.end;
6648 let mut new_range = old_range.clone();
6649 while let Some(containing_range) =
6650 buffer.range_for_syntax_ancestor(new_range.clone())
6651 {
6652 new_range = containing_range;
6653 if !display_map.intersects_fold(new_range.start)
6654 && !display_map.intersects_fold(new_range.end)
6655 {
6656 break;
6657 }
6658 }
6659
6660 selected_larger_node |= new_range != old_range;
6661 Selection {
6662 id: selection.id,
6663 start: new_range.start,
6664 end: new_range.end,
6665 goal: SelectionGoal::None,
6666 reversed: selection.reversed,
6667 }
6668 })
6669 .collect::<Vec<_>>();
6670
6671 if selected_larger_node {
6672 stack.push(old_selections);
6673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6674 s.select(new_selections);
6675 });
6676 }
6677 self.select_larger_syntax_node_stack = stack;
6678 }
6679
6680 pub fn select_smaller_syntax_node(
6681 &mut self,
6682 _: &SelectSmallerSyntaxNode,
6683 cx: &mut ViewContext<Self>,
6684 ) {
6685 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6686 if let Some(selections) = stack.pop() {
6687 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6688 s.select(selections.to_vec());
6689 });
6690 }
6691 self.select_larger_syntax_node_stack = stack;
6692 }
6693
6694 pub fn move_to_enclosing_bracket(
6695 &mut self,
6696 _: &MoveToEnclosingBracket,
6697 cx: &mut ViewContext<Self>,
6698 ) {
6699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6700 s.move_offsets_with(|snapshot, selection| {
6701 let Some(enclosing_bracket_ranges) =
6702 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6703 else {
6704 return;
6705 };
6706
6707 let mut best_length = usize::MAX;
6708 let mut best_inside = false;
6709 let mut best_in_bracket_range = false;
6710 let mut best_destination = None;
6711 for (open, close) in enclosing_bracket_ranges {
6712 let close = close.to_inclusive();
6713 let length = close.end() - open.start;
6714 let inside = selection.start >= open.end && selection.end <= *close.start();
6715 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6716 || close.contains(&selection.head());
6717
6718 // If best is next to a bracket and current isn't, skip
6719 if !in_bracket_range && best_in_bracket_range {
6720 continue;
6721 }
6722
6723 // Prefer smaller lengths unless best is inside and current isn't
6724 if length > best_length && (best_inside || !inside) {
6725 continue;
6726 }
6727
6728 best_length = length;
6729 best_inside = inside;
6730 best_in_bracket_range = in_bracket_range;
6731 best_destination = Some(
6732 if close.contains(&selection.start) && close.contains(&selection.end) {
6733 if inside {
6734 open.end
6735 } else {
6736 open.start
6737 }
6738 } else {
6739 if inside {
6740 *close.start()
6741 } else {
6742 *close.end()
6743 }
6744 },
6745 );
6746 }
6747
6748 if let Some(destination) = best_destination {
6749 selection.collapse_to(destination, SelectionGoal::None);
6750 }
6751 })
6752 });
6753 }
6754
6755 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6756 self.end_selection(cx);
6757 self.selection_history.mode = SelectionHistoryMode::Undoing;
6758 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6759 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6760 self.select_next_state = entry.select_next_state;
6761 self.select_prev_state = entry.select_prev_state;
6762 self.add_selections_state = entry.add_selections_state;
6763 self.request_autoscroll(Autoscroll::newest(), cx);
6764 }
6765 self.selection_history.mode = SelectionHistoryMode::Normal;
6766 }
6767
6768 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6769 self.end_selection(cx);
6770 self.selection_history.mode = SelectionHistoryMode::Redoing;
6771 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6772 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6773 self.select_next_state = entry.select_next_state;
6774 self.select_prev_state = entry.select_prev_state;
6775 self.add_selections_state = entry.add_selections_state;
6776 self.request_autoscroll(Autoscroll::newest(), cx);
6777 }
6778 self.selection_history.mode = SelectionHistoryMode::Normal;
6779 }
6780
6781 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6782 self.go_to_diagnostic_impl(Direction::Next, cx)
6783 }
6784
6785 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6786 self.go_to_diagnostic_impl(Direction::Prev, cx)
6787 }
6788
6789 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6790 let buffer = self.buffer.read(cx).snapshot(cx);
6791 let selection = self.selections.newest::<usize>(cx);
6792
6793 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6794 if direction == Direction::Next {
6795 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6796 let (group_id, jump_to) = popover.activation_info();
6797 if self.activate_diagnostics(group_id, cx) {
6798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6799 let mut new_selection = s.newest_anchor().clone();
6800 new_selection.collapse_to(jump_to, SelectionGoal::None);
6801 s.select_anchors(vec![new_selection.clone()]);
6802 });
6803 }
6804 return;
6805 }
6806 }
6807
6808 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6809 active_diagnostics
6810 .primary_range
6811 .to_offset(&buffer)
6812 .to_inclusive()
6813 });
6814 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6815 if active_primary_range.contains(&selection.head()) {
6816 *active_primary_range.end()
6817 } else {
6818 selection.head()
6819 }
6820 } else {
6821 selection.head()
6822 };
6823
6824 loop {
6825 let mut diagnostics = if direction == Direction::Prev {
6826 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6827 } else {
6828 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6829 };
6830 let group = diagnostics.find_map(|entry| {
6831 if entry.diagnostic.is_primary
6832 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6833 && !entry.range.is_empty()
6834 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6835 && !entry.range.contains(&search_start)
6836 {
6837 Some((entry.range, entry.diagnostic.group_id))
6838 } else {
6839 None
6840 }
6841 });
6842
6843 if let Some((primary_range, group_id)) = group {
6844 if self.activate_diagnostics(group_id, cx) {
6845 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6846 s.select(vec![Selection {
6847 id: selection.id,
6848 start: primary_range.start,
6849 end: primary_range.start,
6850 reversed: false,
6851 goal: SelectionGoal::None,
6852 }]);
6853 });
6854 }
6855 break;
6856 } else {
6857 // Cycle around to the start of the buffer, potentially moving back to the start of
6858 // the currently active diagnostic.
6859 active_primary_range.take();
6860 if direction == Direction::Prev {
6861 if search_start == buffer.len() {
6862 break;
6863 } else {
6864 search_start = buffer.len();
6865 }
6866 } else if search_start == 0 {
6867 break;
6868 } else {
6869 search_start = 0;
6870 }
6871 }
6872 }
6873 }
6874
6875 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
6876 let snapshot = self
6877 .display_map
6878 .update(cx, |display_map, cx| display_map.snapshot(cx));
6879 let selection = self.selections.newest::<Point>(cx);
6880
6881 if !self.seek_in_direction(
6882 &snapshot,
6883 selection.head(),
6884 false,
6885 snapshot
6886 .buffer_snapshot
6887 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
6888 cx,
6889 ) {
6890 let wrapped_point = Point::zero();
6891 self.seek_in_direction(
6892 &snapshot,
6893 wrapped_point,
6894 true,
6895 snapshot
6896 .buffer_snapshot
6897 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
6898 cx,
6899 );
6900 }
6901 }
6902
6903 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
6904 let snapshot = self
6905 .display_map
6906 .update(cx, |display_map, cx| display_map.snapshot(cx));
6907 let selection = self.selections.newest::<Point>(cx);
6908
6909 if !self.seek_in_direction(
6910 &snapshot,
6911 selection.head(),
6912 false,
6913 snapshot
6914 .buffer_snapshot
6915 .git_diff_hunks_in_range_rev(0..selection.head().row),
6916 cx,
6917 ) {
6918 let wrapped_point = snapshot.buffer_snapshot.max_point();
6919 self.seek_in_direction(
6920 &snapshot,
6921 wrapped_point,
6922 true,
6923 snapshot
6924 .buffer_snapshot
6925 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
6926 cx,
6927 );
6928 }
6929 }
6930
6931 fn seek_in_direction(
6932 &mut self,
6933 snapshot: &DisplaySnapshot,
6934 initial_point: Point,
6935 is_wrapped: bool,
6936 hunks: impl Iterator<Item = DiffHunk<u32>>,
6937 cx: &mut ViewContext<Editor>,
6938 ) -> bool {
6939 let display_point = initial_point.to_display_point(snapshot);
6940 let mut hunks = hunks
6941 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
6942 .filter(|hunk| {
6943 if is_wrapped {
6944 true
6945 } else {
6946 !hunk.contains_display_row(display_point.row())
6947 }
6948 })
6949 .dedup();
6950
6951 if let Some(hunk) = hunks.next() {
6952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6953 let row = hunk.start_display_row();
6954 let point = DisplayPoint::new(row, 0);
6955 s.select_display_ranges([point..point]);
6956 });
6957
6958 true
6959 } else {
6960 false
6961 }
6962 }
6963
6964 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
6965 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
6966 }
6967
6968 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
6969 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
6970 }
6971
6972 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
6973 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
6974 }
6975
6976 pub fn go_to_type_definition_split(
6977 &mut self,
6978 _: &GoToTypeDefinitionSplit,
6979 cx: &mut ViewContext<Self>,
6980 ) {
6981 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
6982 }
6983
6984 fn go_to_definition_of_kind(
6985 &mut self,
6986 kind: GotoDefinitionKind,
6987 split: bool,
6988 cx: &mut ViewContext<Self>,
6989 ) {
6990 let Some(workspace) = self.workspace() else {
6991 return;
6992 };
6993 let buffer = self.buffer.read(cx);
6994 let head = self.selections.newest::<usize>(cx).head();
6995 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
6996 text_anchor
6997 } else {
6998 return;
6999 };
7000
7001 let project = workspace.read(cx).project().clone();
7002 let definitions = project.update(cx, |project, cx| match kind {
7003 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7004 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7005 });
7006
7007 cx.spawn(|editor, mut cx| async move {
7008 let definitions = definitions.await?;
7009 editor.update(&mut cx, |editor, cx| {
7010 editor.navigate_to_definitions(
7011 definitions
7012 .into_iter()
7013 .map(GoToDefinitionLink::Text)
7014 .collect(),
7015 split,
7016 cx,
7017 );
7018 })?;
7019 Ok::<(), anyhow::Error>(())
7020 })
7021 .detach_and_log_err(cx);
7022 }
7023
7024 pub fn navigate_to_definitions(
7025 &mut self,
7026 mut definitions: Vec<GoToDefinitionLink>,
7027 split: bool,
7028 cx: &mut ViewContext<Editor>,
7029 ) {
7030 let Some(workspace) = self.workspace() else {
7031 return;
7032 };
7033 let pane = workspace.read(cx).active_pane().clone();
7034 // If there is one definition, just open it directly
7035 if definitions.len() == 1 {
7036 let definition = definitions.pop().unwrap();
7037 let target_task = match definition {
7038 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7039 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7040 self.compute_target_location(lsp_location, server_id, cx)
7041 }
7042 };
7043 cx.spawn(|editor, mut cx| async move {
7044 let target = target_task.await.context("target resolution task")?;
7045 if let Some(target) = target {
7046 editor.update(&mut cx, |editor, cx| {
7047 let range = target.range.to_offset(target.buffer.read(cx));
7048 let range = editor.range_for_match(&range);
7049 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7050 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7051 s.select_ranges([range]);
7052 });
7053 } else {
7054 cx.window_context().defer(move |cx| {
7055 let target_editor: View<Self> =
7056 workspace.update(cx, |workspace, cx| {
7057 if split {
7058 workspace.split_project_item(target.buffer.clone(), cx)
7059 } else {
7060 workspace.open_project_item(target.buffer.clone(), cx)
7061 }
7062 });
7063 target_editor.update(cx, |target_editor, cx| {
7064 // When selecting a definition in a different buffer, disable the nav history
7065 // to avoid creating a history entry at the previous cursor location.
7066 pane.update(cx, |pane, _| pane.disable_history());
7067 target_editor.change_selections(
7068 Some(Autoscroll::fit()),
7069 cx,
7070 |s| {
7071 s.select_ranges([range]);
7072 },
7073 );
7074 pane.update(cx, |pane, _| pane.enable_history());
7075 });
7076 });
7077 }
7078 })
7079 } else {
7080 Ok(())
7081 }
7082 })
7083 .detach_and_log_err(cx);
7084 } else if !definitions.is_empty() {
7085 let replica_id = self.replica_id(cx);
7086 cx.spawn(|editor, mut cx| async move {
7087 let (title, location_tasks) = editor
7088 .update(&mut cx, |editor, cx| {
7089 let title = definitions
7090 .iter()
7091 .find_map(|definition| match definition {
7092 GoToDefinitionLink::Text(link) => {
7093 link.origin.as_ref().map(|origin| {
7094 let buffer = origin.buffer.read(cx);
7095 format!(
7096 "Definitions for {}",
7097 buffer
7098 .text_for_range(origin.range.clone())
7099 .collect::<String>()
7100 )
7101 })
7102 }
7103 GoToDefinitionLink::InlayHint(_, _) => None,
7104 })
7105 .unwrap_or("Definitions".to_string());
7106 let location_tasks = definitions
7107 .into_iter()
7108 .map(|definition| match definition {
7109 GoToDefinitionLink::Text(link) => {
7110 Task::Ready(Some(Ok(Some(link.target))))
7111 }
7112 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7113 editor.compute_target_location(lsp_location, server_id, cx)
7114 }
7115 })
7116 .collect::<Vec<_>>();
7117 (title, location_tasks)
7118 })
7119 .context("location tasks preparation")?;
7120
7121 let locations = futures::future::join_all(location_tasks)
7122 .await
7123 .into_iter()
7124 .filter_map(|location| location.transpose())
7125 .collect::<Result<_>>()
7126 .context("location tasks")?;
7127 workspace
7128 .update(&mut cx, |workspace, cx| {
7129 Self::open_locations_in_multibuffer(
7130 workspace, locations, replica_id, title, split, cx,
7131 )
7132 })
7133 .ok();
7134
7135 anyhow::Ok(())
7136 })
7137 .detach_and_log_err(cx);
7138 }
7139 }
7140
7141 fn compute_target_location(
7142 &self,
7143 lsp_location: lsp::Location,
7144 server_id: LanguageServerId,
7145 cx: &mut ViewContext<Editor>,
7146 ) -> Task<anyhow::Result<Option<Location>>> {
7147 let Some(project) = self.project.clone() else {
7148 return Task::Ready(Some(Ok(None)));
7149 };
7150
7151 cx.spawn(move |editor, mut cx| async move {
7152 let location_task = editor.update(&mut cx, |editor, cx| {
7153 project.update(cx, |project, cx| {
7154 let language_server_name =
7155 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7156 project
7157 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7158 .map(|(_, lsp_adapter)| {
7159 LanguageServerName(Arc::from(lsp_adapter.name()))
7160 })
7161 });
7162 language_server_name.map(|language_server_name| {
7163 project.open_local_buffer_via_lsp(
7164 lsp_location.uri.clone(),
7165 server_id,
7166 language_server_name,
7167 cx,
7168 )
7169 })
7170 })
7171 })?;
7172 let location = match location_task {
7173 Some(task) => Some({
7174 let target_buffer_handle = task.await.context("open local buffer")?;
7175 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7176 let target_start = target_buffer
7177 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7178 let target_end = target_buffer
7179 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7180 target_buffer.anchor_after(target_start)
7181 ..target_buffer.anchor_before(target_end)
7182 })?;
7183 Location {
7184 buffer: target_buffer_handle,
7185 range,
7186 }
7187 }),
7188 None => None,
7189 };
7190 Ok(location)
7191 })
7192 }
7193
7194 pub fn find_all_references(
7195 &mut self,
7196 _: &FindAllReferences,
7197 cx: &mut ViewContext<Self>,
7198 ) -> Option<Task<Result<()>>> {
7199 let buffer = self.buffer.read(cx);
7200 let head = self.selections.newest::<usize>(cx).head();
7201 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7202 let replica_id = self.replica_id(cx);
7203
7204 let workspace = self.workspace()?;
7205 let project = workspace.read(cx).project().clone();
7206 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7207 Some(cx.spawn(|_, mut cx| async move {
7208 let locations = references.await?;
7209 if locations.is_empty() {
7210 return Ok(());
7211 }
7212
7213 workspace.update(&mut cx, |workspace, cx| {
7214 let title = locations
7215 .first()
7216 .as_ref()
7217 .map(|location| {
7218 let buffer = location.buffer.read(cx);
7219 format!(
7220 "References to `{}`",
7221 buffer
7222 .text_for_range(location.range.clone())
7223 .collect::<String>()
7224 )
7225 })
7226 .unwrap();
7227 Self::open_locations_in_multibuffer(
7228 workspace, locations, replica_id, title, false, cx,
7229 );
7230 })?;
7231
7232 Ok(())
7233 }))
7234 }
7235
7236 /// Opens a multibuffer with the given project locations in it
7237 pub fn open_locations_in_multibuffer(
7238 workspace: &mut Workspace,
7239 mut locations: Vec<Location>,
7240 replica_id: ReplicaId,
7241 title: String,
7242 split: bool,
7243 cx: &mut ViewContext<Workspace>,
7244 ) {
7245 // If there are multiple definitions, open them in a multibuffer
7246 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7247 let mut locations = locations.into_iter().peekable();
7248 let mut ranges_to_highlight = Vec::new();
7249 let capability = workspace.project().read(cx).capability();
7250
7251 let excerpt_buffer = cx.new_model(|cx| {
7252 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7253 while let Some(location) = locations.next() {
7254 let buffer = location.buffer.read(cx);
7255 let mut ranges_for_buffer = Vec::new();
7256 let range = location.range.to_offset(buffer);
7257 ranges_for_buffer.push(range.clone());
7258
7259 while let Some(next_location) = locations.peek() {
7260 if next_location.buffer == location.buffer {
7261 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7262 locations.next();
7263 } else {
7264 break;
7265 }
7266 }
7267
7268 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7269 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7270 location.buffer.clone(),
7271 ranges_for_buffer,
7272 1,
7273 cx,
7274 ))
7275 }
7276
7277 multibuffer.with_title(title)
7278 });
7279
7280 let editor = cx.new_view(|cx| {
7281 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7282 });
7283 editor.update(cx, |editor, cx| {
7284 editor.highlight_background::<Self>(
7285 ranges_to_highlight,
7286 |theme| theme.editor_highlighted_line_background,
7287 cx,
7288 );
7289 });
7290 if split {
7291 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7292 } else {
7293 workspace.add_item(Box::new(editor), cx);
7294 }
7295 }
7296
7297 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7298 use language::ToOffset as _;
7299
7300 let project = self.project.clone()?;
7301 let selection = self.selections.newest_anchor().clone();
7302 let (cursor_buffer, cursor_buffer_position) = self
7303 .buffer
7304 .read(cx)
7305 .text_anchor_for_position(selection.head(), cx)?;
7306 let (tail_buffer, _) = self
7307 .buffer
7308 .read(cx)
7309 .text_anchor_for_position(selection.tail(), cx)?;
7310 if tail_buffer != cursor_buffer {
7311 return None;
7312 }
7313
7314 let snapshot = cursor_buffer.read(cx).snapshot();
7315 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7316 let prepare_rename = project.update(cx, |project, cx| {
7317 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7318 });
7319
7320 Some(cx.spawn(|this, mut cx| async move {
7321 let rename_range = if let Some(range) = prepare_rename.await? {
7322 Some(range)
7323 } else {
7324 this.update(&mut cx, |this, cx| {
7325 let buffer = this.buffer.read(cx).snapshot(cx);
7326 let mut buffer_highlights = this
7327 .document_highlights_for_position(selection.head(), &buffer)
7328 .filter(|highlight| {
7329 highlight.start.excerpt_id == selection.head().excerpt_id
7330 && highlight.end.excerpt_id == selection.head().excerpt_id
7331 });
7332 buffer_highlights
7333 .next()
7334 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7335 })?
7336 };
7337 if let Some(rename_range) = rename_range {
7338 let rename_buffer_range = rename_range.to_offset(&snapshot);
7339 let cursor_offset_in_rename_range =
7340 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7341
7342 this.update(&mut cx, |this, cx| {
7343 this.take_rename(false, cx);
7344 let buffer = this.buffer.read(cx).read(cx);
7345 let cursor_offset = selection.head().to_offset(&buffer);
7346 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7347 let rename_end = rename_start + rename_buffer_range.len();
7348 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7349 let mut old_highlight_id = None;
7350 let old_name: Arc<str> = buffer
7351 .chunks(rename_start..rename_end, true)
7352 .map(|chunk| {
7353 if old_highlight_id.is_none() {
7354 old_highlight_id = chunk.syntax_highlight_id;
7355 }
7356 chunk.text
7357 })
7358 .collect::<String>()
7359 .into();
7360
7361 drop(buffer);
7362
7363 // Position the selection in the rename editor so that it matches the current selection.
7364 this.show_local_selections = false;
7365 let rename_editor = cx.new_view(|cx| {
7366 let mut editor = Editor::single_line(cx);
7367 editor.buffer.update(cx, |buffer, cx| {
7368 buffer.edit([(0..0, old_name.clone())], None, cx)
7369 });
7370 editor.select_all(&SelectAll, cx);
7371 editor
7372 });
7373
7374 let ranges = this
7375 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7376 .into_iter()
7377 .flat_map(|(_, ranges)| ranges.into_iter())
7378 .chain(
7379 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7380 .into_iter()
7381 .flat_map(|(_, ranges)| ranges.into_iter()),
7382 )
7383 .collect();
7384
7385 this.highlight_text::<Rename>(
7386 ranges,
7387 HighlightStyle {
7388 fade_out: Some(0.6),
7389 ..Default::default()
7390 },
7391 cx,
7392 );
7393 let rename_focus_handle = rename_editor.focus_handle(cx);
7394 cx.focus(&rename_focus_handle);
7395 let block_id = this.insert_blocks(
7396 [BlockProperties {
7397 style: BlockStyle::Flex,
7398 position: range.start.clone(),
7399 height: 1,
7400 render: Arc::new({
7401 let rename_editor = rename_editor.clone();
7402 move |cx: &mut BlockContext| {
7403 let mut text_style = cx.editor_style.text.clone();
7404 if let Some(highlight_style) = old_highlight_id
7405 .and_then(|h| h.style(&cx.editor_style.syntax))
7406 {
7407 text_style = text_style.highlight(highlight_style);
7408 }
7409 div()
7410 .pl(cx.anchor_x)
7411 .child(EditorElement::new(
7412 &rename_editor,
7413 EditorStyle {
7414 background: cx.theme().system().transparent,
7415 local_player: cx.editor_style.local_player,
7416 text: text_style,
7417 scrollbar_width: cx.editor_style.scrollbar_width,
7418 syntax: cx.editor_style.syntax.clone(),
7419 status: cx.editor_style.status.clone(),
7420 inlays_style: HighlightStyle {
7421 color: Some(cx.theme().status().hint),
7422 font_weight: Some(FontWeight::BOLD),
7423 ..HighlightStyle::default()
7424 },
7425 suggestions_style: HighlightStyle {
7426 color: Some(cx.theme().status().predictive),
7427 ..HighlightStyle::default()
7428 },
7429 },
7430 ))
7431 .into_any_element()
7432 }
7433 }),
7434 disposition: BlockDisposition::Below,
7435 }],
7436 Some(Autoscroll::fit()),
7437 cx,
7438 )[0];
7439 this.pending_rename = Some(RenameState {
7440 range,
7441 old_name,
7442 editor: rename_editor,
7443 block_id,
7444 });
7445 })?;
7446 }
7447
7448 Ok(())
7449 }))
7450 }
7451
7452 pub fn confirm_rename(
7453 &mut self,
7454 _: &ConfirmRename,
7455 cx: &mut ViewContext<Self>,
7456 ) -> Option<Task<Result<()>>> {
7457 let rename = self.take_rename(false, cx)?;
7458 let workspace = self.workspace()?;
7459 let (start_buffer, start) = self
7460 .buffer
7461 .read(cx)
7462 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7463 let (end_buffer, end) = self
7464 .buffer
7465 .read(cx)
7466 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7467 if start_buffer != end_buffer {
7468 return None;
7469 }
7470
7471 let buffer = start_buffer;
7472 let range = start..end;
7473 let old_name = rename.old_name;
7474 let new_name = rename.editor.read(cx).text(cx);
7475
7476 let rename = workspace
7477 .read(cx)
7478 .project()
7479 .clone()
7480 .update(cx, |project, cx| {
7481 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7482 });
7483 let workspace = workspace.downgrade();
7484
7485 Some(cx.spawn(|editor, mut cx| async move {
7486 let project_transaction = rename.await?;
7487 Self::open_project_transaction(
7488 &editor,
7489 workspace,
7490 project_transaction,
7491 format!("Rename: {} → {}", old_name, new_name),
7492 cx.clone(),
7493 )
7494 .await?;
7495
7496 editor.update(&mut cx, |editor, cx| {
7497 editor.refresh_document_highlights(cx);
7498 })?;
7499 Ok(())
7500 }))
7501 }
7502
7503 fn take_rename(
7504 &mut self,
7505 moving_cursor: bool,
7506 cx: &mut ViewContext<Self>,
7507 ) -> Option<RenameState> {
7508 let rename = self.pending_rename.take()?;
7509 if rename.editor.focus_handle(cx).is_focused(cx) {
7510 cx.focus(&self.focus_handle);
7511 }
7512
7513 self.remove_blocks(
7514 [rename.block_id].into_iter().collect(),
7515 Some(Autoscroll::fit()),
7516 cx,
7517 );
7518 self.clear_highlights::<Rename>(cx);
7519 self.show_local_selections = true;
7520
7521 if moving_cursor {
7522 let rename_editor = rename.editor.read(cx);
7523 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7524
7525 // Update the selection to match the position of the selection inside
7526 // the rename editor.
7527 let snapshot = self.buffer.read(cx).read(cx);
7528 let rename_range = rename.range.to_offset(&snapshot);
7529 let cursor_in_editor = snapshot
7530 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7531 .min(rename_range.end);
7532 drop(snapshot);
7533
7534 self.change_selections(None, cx, |s| {
7535 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7536 });
7537 } else {
7538 self.refresh_document_highlights(cx);
7539 }
7540
7541 Some(rename)
7542 }
7543
7544 #[cfg(any(test, feature = "test-support"))]
7545 pub fn pending_rename(&self) -> Option<&RenameState> {
7546 self.pending_rename.as_ref()
7547 }
7548
7549 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7550 let project = match &self.project {
7551 Some(project) => project.clone(),
7552 None => return None,
7553 };
7554
7555 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7556 }
7557
7558 fn perform_format(
7559 &mut self,
7560 project: Model<Project>,
7561 trigger: FormatTrigger,
7562 cx: &mut ViewContext<Self>,
7563 ) -> Task<Result<()>> {
7564 let buffer = self.buffer().clone();
7565 let buffers = buffer.read(cx).all_buffers();
7566
7567 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7568 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7569
7570 cx.spawn(|_, mut cx| async move {
7571 let transaction = futures::select_biased! {
7572 _ = timeout => {
7573 log::warn!("timed out waiting for formatting");
7574 None
7575 }
7576 transaction = format.log_err().fuse() => transaction,
7577 };
7578
7579 buffer
7580 .update(&mut cx, |buffer, cx| {
7581 if let Some(transaction) = transaction {
7582 if !buffer.is_singleton() {
7583 buffer.push_transaction(&transaction.0, cx);
7584 }
7585 }
7586
7587 cx.notify();
7588 })
7589 .ok();
7590
7591 Ok(())
7592 })
7593 }
7594
7595 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7596 if let Some(project) = self.project.clone() {
7597 self.buffer.update(cx, |multi_buffer, cx| {
7598 project.update(cx, |project, cx| {
7599 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7600 });
7601 })
7602 }
7603 }
7604
7605 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7606 cx.show_character_palette();
7607 }
7608
7609 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7610 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7611 let buffer = self.buffer.read(cx).snapshot(cx);
7612 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7613 let is_valid = buffer
7614 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7615 .any(|entry| {
7616 entry.diagnostic.is_primary
7617 && !entry.range.is_empty()
7618 && entry.range.start == primary_range_start
7619 && entry.diagnostic.message == active_diagnostics.primary_message
7620 });
7621
7622 if is_valid != active_diagnostics.is_valid {
7623 active_diagnostics.is_valid = is_valid;
7624 let mut new_styles = HashMap::default();
7625 for (block_id, diagnostic) in &active_diagnostics.blocks {
7626 new_styles.insert(
7627 *block_id,
7628 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7629 );
7630 }
7631 self.display_map
7632 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7633 }
7634 }
7635 }
7636
7637 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7638 self.dismiss_diagnostics(cx);
7639 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7640 let buffer = self.buffer.read(cx).snapshot(cx);
7641
7642 let mut primary_range = None;
7643 let mut primary_message = None;
7644 let mut group_end = Point::zero();
7645 let diagnostic_group = buffer
7646 .diagnostic_group::<Point>(group_id)
7647 .map(|entry| {
7648 if entry.range.end > group_end {
7649 group_end = entry.range.end;
7650 }
7651 if entry.diagnostic.is_primary {
7652 primary_range = Some(entry.range.clone());
7653 primary_message = Some(entry.diagnostic.message.clone());
7654 }
7655 entry
7656 })
7657 .collect::<Vec<_>>();
7658 let primary_range = primary_range?;
7659 let primary_message = primary_message?;
7660 let primary_range =
7661 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7662
7663 let blocks = display_map
7664 .insert_blocks(
7665 diagnostic_group.iter().map(|entry| {
7666 let diagnostic = entry.diagnostic.clone();
7667 let message_height = diagnostic.message.lines().count() as u8;
7668 BlockProperties {
7669 style: BlockStyle::Fixed,
7670 position: buffer.anchor_after(entry.range.start),
7671 height: message_height,
7672 render: diagnostic_block_renderer(diagnostic, true),
7673 disposition: BlockDisposition::Below,
7674 }
7675 }),
7676 cx,
7677 )
7678 .into_iter()
7679 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7680 .collect();
7681
7682 Some(ActiveDiagnosticGroup {
7683 primary_range,
7684 primary_message,
7685 blocks,
7686 is_valid: true,
7687 })
7688 });
7689 self.active_diagnostics.is_some()
7690 }
7691
7692 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7693 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7694 self.display_map.update(cx, |display_map, cx| {
7695 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7696 });
7697 cx.notify();
7698 }
7699 }
7700
7701 pub fn set_selections_from_remote(
7702 &mut self,
7703 selections: Vec<Selection<Anchor>>,
7704 pending_selection: Option<Selection<Anchor>>,
7705 cx: &mut ViewContext<Self>,
7706 ) {
7707 let old_cursor_position = self.selections.newest_anchor().head();
7708 self.selections.change_with(cx, |s| {
7709 s.select_anchors(selections);
7710 if let Some(pending_selection) = pending_selection {
7711 s.set_pending(pending_selection, SelectMode::Character);
7712 } else {
7713 s.clear_pending();
7714 }
7715 });
7716 self.selections_did_change(false, &old_cursor_position, cx);
7717 }
7718
7719 fn push_to_selection_history(&mut self) {
7720 self.selection_history.push(SelectionHistoryEntry {
7721 selections: self.selections.disjoint_anchors(),
7722 select_next_state: self.select_next_state.clone(),
7723 select_prev_state: self.select_prev_state.clone(),
7724 add_selections_state: self.add_selections_state.clone(),
7725 });
7726 }
7727
7728 pub fn transact(
7729 &mut self,
7730 cx: &mut ViewContext<Self>,
7731 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7732 ) -> Option<TransactionId> {
7733 self.start_transaction_at(Instant::now(), cx);
7734 update(self, cx);
7735 self.end_transaction_at(Instant::now(), cx)
7736 }
7737
7738 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7739 self.end_selection(cx);
7740 if let Some(tx_id) = self
7741 .buffer
7742 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7743 {
7744 self.selection_history
7745 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7746 }
7747 }
7748
7749 fn end_transaction_at(
7750 &mut self,
7751 now: Instant,
7752 cx: &mut ViewContext<Self>,
7753 ) -> Option<TransactionId> {
7754 if let Some(tx_id) = self
7755 .buffer
7756 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7757 {
7758 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7759 *end_selections = Some(self.selections.disjoint_anchors());
7760 } else {
7761 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7762 }
7763
7764 cx.emit(EditorEvent::Edited);
7765 Some(tx_id)
7766 } else {
7767 None
7768 }
7769 }
7770
7771 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7772 let mut fold_ranges = Vec::new();
7773
7774 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7775
7776 let selections = self.selections.all_adjusted(cx);
7777 for selection in selections {
7778 let range = selection.range().sorted();
7779 let buffer_start_row = range.start.row;
7780
7781 for row in (0..=range.end.row).rev() {
7782 let fold_range = display_map.foldable_range(row);
7783
7784 if let Some(fold_range) = fold_range {
7785 if fold_range.end.row >= buffer_start_row {
7786 fold_ranges.push(fold_range);
7787 if row <= range.start.row {
7788 break;
7789 }
7790 }
7791 }
7792 }
7793 }
7794
7795 self.fold_ranges(fold_ranges, true, cx);
7796 }
7797
7798 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7799 let buffer_row = fold_at.buffer_row;
7800 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7801
7802 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7803 let autoscroll = self
7804 .selections
7805 .all::<Point>(cx)
7806 .iter()
7807 .any(|selection| fold_range.overlaps(&selection.range()));
7808
7809 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7810 }
7811 }
7812
7813 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7814 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7815 let buffer = &display_map.buffer_snapshot;
7816 let selections = self.selections.all::<Point>(cx);
7817 let ranges = selections
7818 .iter()
7819 .map(|s| {
7820 let range = s.display_range(&display_map).sorted();
7821 let mut start = range.start.to_point(&display_map);
7822 let mut end = range.end.to_point(&display_map);
7823 start.column = 0;
7824 end.column = buffer.line_len(end.row);
7825 start..end
7826 })
7827 .collect::<Vec<_>>();
7828
7829 self.unfold_ranges(ranges, true, true, cx);
7830 }
7831
7832 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7833 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7834
7835 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7836 ..Point::new(
7837 unfold_at.buffer_row,
7838 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7839 );
7840
7841 let autoscroll = self
7842 .selections
7843 .all::<Point>(cx)
7844 .iter()
7845 .any(|selection| selection.range().overlaps(&intersection_range));
7846
7847 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
7848 }
7849
7850 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
7851 let selections = self.selections.all::<Point>(cx);
7852 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7853 let line_mode = self.selections.line_mode;
7854 let ranges = selections.into_iter().map(|s| {
7855 if line_mode {
7856 let start = Point::new(s.start.row, 0);
7857 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
7858 start..end
7859 } else {
7860 s.start..s.end
7861 }
7862 });
7863 self.fold_ranges(ranges, true, cx);
7864 }
7865
7866 pub fn fold_ranges<T: ToOffset + Clone>(
7867 &mut self,
7868 ranges: impl IntoIterator<Item = Range<T>>,
7869 auto_scroll: bool,
7870 cx: &mut ViewContext<Self>,
7871 ) {
7872 let mut ranges = ranges.into_iter().peekable();
7873 if ranges.peek().is_some() {
7874 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
7875
7876 if auto_scroll {
7877 self.request_autoscroll(Autoscroll::fit(), cx);
7878 }
7879
7880 cx.notify();
7881 }
7882 }
7883
7884 pub fn unfold_ranges<T: ToOffset + Clone>(
7885 &mut self,
7886 ranges: impl IntoIterator<Item = Range<T>>,
7887 inclusive: bool,
7888 auto_scroll: bool,
7889 cx: &mut ViewContext<Self>,
7890 ) {
7891 let mut ranges = ranges.into_iter().peekable();
7892 if ranges.peek().is_some() {
7893 self.display_map
7894 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
7895 if auto_scroll {
7896 self.request_autoscroll(Autoscroll::fit(), cx);
7897 }
7898
7899 cx.notify();
7900 }
7901 }
7902
7903 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
7904 if hovered != self.gutter_hovered {
7905 self.gutter_hovered = hovered;
7906 cx.notify();
7907 }
7908 }
7909
7910 pub fn insert_blocks(
7911 &mut self,
7912 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
7913 autoscroll: Option<Autoscroll>,
7914 cx: &mut ViewContext<Self>,
7915 ) -> Vec<BlockId> {
7916 let blocks = self
7917 .display_map
7918 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
7919 if let Some(autoscroll) = autoscroll {
7920 self.request_autoscroll(autoscroll, cx);
7921 }
7922 blocks
7923 }
7924
7925 pub fn replace_blocks(
7926 &mut self,
7927 blocks: HashMap<BlockId, RenderBlock>,
7928 autoscroll: Option<Autoscroll>,
7929 cx: &mut ViewContext<Self>,
7930 ) {
7931 self.display_map
7932 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
7933 if let Some(autoscroll) = autoscroll {
7934 self.request_autoscroll(autoscroll, cx);
7935 }
7936 }
7937
7938 pub fn remove_blocks(
7939 &mut self,
7940 block_ids: HashSet<BlockId>,
7941 autoscroll: Option<Autoscroll>,
7942 cx: &mut ViewContext<Self>,
7943 ) {
7944 self.display_map.update(cx, |display_map, cx| {
7945 display_map.remove_blocks(block_ids, cx)
7946 });
7947 if let Some(autoscroll) = autoscroll {
7948 self.request_autoscroll(autoscroll, cx);
7949 }
7950 }
7951
7952 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
7953 self.display_map
7954 .update(cx, |map, cx| map.snapshot(cx))
7955 .longest_row()
7956 }
7957
7958 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
7959 self.display_map
7960 .update(cx, |map, cx| map.snapshot(cx))
7961 .max_point()
7962 }
7963
7964 pub fn text(&self, cx: &AppContext) -> String {
7965 self.buffer.read(cx).read(cx).text()
7966 }
7967
7968 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
7969 let text = self.text(cx);
7970 let text = text.trim();
7971
7972 if text.is_empty() {
7973 return None;
7974 }
7975
7976 Some(text.to_string())
7977 }
7978
7979 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
7980 self.transact(cx, |this, cx| {
7981 this.buffer
7982 .read(cx)
7983 .as_singleton()
7984 .expect("you can only call set_text on editors for singleton buffers")
7985 .update(cx, |buffer, cx| buffer.set_text(text, cx));
7986 });
7987 }
7988
7989 pub fn display_text(&self, cx: &mut AppContext) -> String {
7990 self.display_map
7991 .update(cx, |map, cx| map.snapshot(cx))
7992 .text()
7993 }
7994
7995 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
7996 let mut wrap_guides = smallvec::smallvec![];
7997
7998 if self.show_wrap_guides == Some(false) {
7999 return wrap_guides;
8000 }
8001
8002 let settings = self.buffer.read(cx).settings_at(0, cx);
8003 if settings.show_wrap_guides {
8004 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8005 wrap_guides.push((soft_wrap as usize, true));
8006 }
8007 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8008 }
8009
8010 wrap_guides
8011 }
8012
8013 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8014 let settings = self.buffer.read(cx).settings_at(0, cx);
8015 let mode = self
8016 .soft_wrap_mode_override
8017 .unwrap_or_else(|| settings.soft_wrap);
8018 match mode {
8019 language_settings::SoftWrap::None => SoftWrap::None,
8020 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8021 language_settings::SoftWrap::PreferredLineLength => {
8022 SoftWrap::Column(settings.preferred_line_length)
8023 }
8024 }
8025 }
8026
8027 pub fn set_soft_wrap_mode(
8028 &mut self,
8029 mode: language_settings::SoftWrap,
8030 cx: &mut ViewContext<Self>,
8031 ) {
8032 self.soft_wrap_mode_override = Some(mode);
8033 cx.notify();
8034 }
8035
8036 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8037 let rem_size = cx.rem_size();
8038 self.display_map.update(cx, |map, cx| {
8039 map.set_font(
8040 style.text.font(),
8041 style.text.font_size.to_pixels(rem_size),
8042 cx,
8043 )
8044 });
8045 self.style = Some(style);
8046 }
8047
8048 #[cfg(any(test, feature = "test-support"))]
8049 pub fn style(&self) -> Option<&EditorStyle> {
8050 self.style.as_ref()
8051 }
8052
8053 // Called by the element. This method is not designed to be called outside of the editor
8054 // element's layout code because it does not notify when rewrapping is computed synchronously.
8055 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8056 self.display_map
8057 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8058 }
8059
8060 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8061 if self.soft_wrap_mode_override.is_some() {
8062 self.soft_wrap_mode_override.take();
8063 } else {
8064 let soft_wrap = match self.soft_wrap_mode(cx) {
8065 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8066 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8067 };
8068 self.soft_wrap_mode_override = Some(soft_wrap);
8069 }
8070 cx.notify();
8071 }
8072
8073 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8074 self.show_gutter = show_gutter;
8075 cx.notify();
8076 }
8077
8078 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8079 self.show_wrap_guides = Some(show_gutter);
8080 cx.notify();
8081 }
8082
8083 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8084 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8085 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8086 cx.reveal_path(&file.abs_path(cx));
8087 }
8088 }
8089 }
8090
8091 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8092 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8093 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8094 if let Some(path) = file.abs_path(cx).to_str() {
8095 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8096 }
8097 }
8098 }
8099 }
8100
8101 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8102 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8103 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8104 if let Some(path) = file.path().to_str() {
8105 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8106 }
8107 }
8108 }
8109 }
8110
8111 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8112 self.highlighted_rows = rows;
8113 }
8114
8115 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8116 self.highlighted_rows.clone()
8117 }
8118
8119 pub fn highlight_background<T: 'static>(
8120 &mut self,
8121 ranges: Vec<Range<Anchor>>,
8122 color_fetcher: fn(&ThemeColors) -> Hsla,
8123 cx: &mut ViewContext<Self>,
8124 ) {
8125 self.background_highlights
8126 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8127 cx.notify();
8128 }
8129
8130 pub(crate) fn highlight_inlay_background<T: 'static>(
8131 &mut self,
8132 ranges: Vec<InlayHighlight>,
8133 color_fetcher: fn(&ThemeColors) -> Hsla,
8134 cx: &mut ViewContext<Self>,
8135 ) {
8136 // TODO: no actual highlights happen for inlays currently, find a way to do that
8137 self.inlay_background_highlights
8138 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8139 cx.notify();
8140 }
8141
8142 pub fn clear_background_highlights<T: 'static>(
8143 &mut self,
8144 cx: &mut ViewContext<Self>,
8145 ) -> Option<BackgroundHighlight> {
8146 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8147 let inlay_highlights = self
8148 .inlay_background_highlights
8149 .remove(&Some(TypeId::of::<T>()));
8150 if text_highlights.is_some() || inlay_highlights.is_some() {
8151 cx.notify();
8152 }
8153 text_highlights
8154 }
8155
8156 #[cfg(feature = "test-support")]
8157 pub fn all_text_background_highlights(
8158 &mut self,
8159 cx: &mut ViewContext<Self>,
8160 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8161 let snapshot = self.snapshot(cx);
8162 let buffer = &snapshot.buffer_snapshot;
8163 let start = buffer.anchor_before(0);
8164 let end = buffer.anchor_after(buffer.len());
8165 let theme = cx.theme().colors();
8166 self.background_highlights_in_range(start..end, &snapshot, theme)
8167 }
8168
8169 fn document_highlights_for_position<'a>(
8170 &'a self,
8171 position: Anchor,
8172 buffer: &'a MultiBufferSnapshot,
8173 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8174 let read_highlights = self
8175 .background_highlights
8176 .get(&TypeId::of::<DocumentHighlightRead>())
8177 .map(|h| &h.1);
8178 let write_highlights = self
8179 .background_highlights
8180 .get(&TypeId::of::<DocumentHighlightWrite>())
8181 .map(|h| &h.1);
8182 let left_position = position.bias_left(buffer);
8183 let right_position = position.bias_right(buffer);
8184 read_highlights
8185 .into_iter()
8186 .chain(write_highlights)
8187 .flat_map(move |ranges| {
8188 let start_ix = match ranges.binary_search_by(|probe| {
8189 let cmp = probe.end.cmp(&left_position, buffer);
8190 if cmp.is_ge() {
8191 Ordering::Greater
8192 } else {
8193 Ordering::Less
8194 }
8195 }) {
8196 Ok(i) | Err(i) => i,
8197 };
8198
8199 let right_position = right_position.clone();
8200 ranges[start_ix..]
8201 .iter()
8202 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8203 })
8204 }
8205
8206 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8207 self.background_highlights
8208 .get(&TypeId::of::<T>())
8209 .map_or(false, |(_, highlights)| !highlights.is_empty())
8210 }
8211
8212 pub fn background_highlights_in_range(
8213 &self,
8214 search_range: Range<Anchor>,
8215 display_snapshot: &DisplaySnapshot,
8216 theme: &ThemeColors,
8217 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8218 let mut results = Vec::new();
8219 for (color_fetcher, ranges) in self.background_highlights.values() {
8220 let color = color_fetcher(theme);
8221 let start_ix = match ranges.binary_search_by(|probe| {
8222 let cmp = probe
8223 .end
8224 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8225 if cmp.is_gt() {
8226 Ordering::Greater
8227 } else {
8228 Ordering::Less
8229 }
8230 }) {
8231 Ok(i) | Err(i) => i,
8232 };
8233 for range in &ranges[start_ix..] {
8234 if range
8235 .start
8236 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8237 .is_ge()
8238 {
8239 break;
8240 }
8241
8242 let start = range.start.to_display_point(&display_snapshot);
8243 let end = range.end.to_display_point(&display_snapshot);
8244 results.push((start..end, color))
8245 }
8246 }
8247 results
8248 }
8249
8250 pub fn background_highlight_row_ranges<T: 'static>(
8251 &self,
8252 search_range: Range<Anchor>,
8253 display_snapshot: &DisplaySnapshot,
8254 count: usize,
8255 ) -> Vec<RangeInclusive<DisplayPoint>> {
8256 let mut results = Vec::new();
8257 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8258 return vec![];
8259 };
8260
8261 let start_ix = match ranges.binary_search_by(|probe| {
8262 let cmp = probe
8263 .end
8264 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8265 if cmp.is_gt() {
8266 Ordering::Greater
8267 } else {
8268 Ordering::Less
8269 }
8270 }) {
8271 Ok(i) | Err(i) => i,
8272 };
8273 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8274 if let (Some(start_display), Some(end_display)) = (start, end) {
8275 results.push(
8276 start_display.to_display_point(display_snapshot)
8277 ..=end_display.to_display_point(display_snapshot),
8278 );
8279 }
8280 };
8281 let mut start_row: Option<Point> = None;
8282 let mut end_row: Option<Point> = None;
8283 if ranges.len() > count {
8284 return Vec::new();
8285 }
8286 for range in &ranges[start_ix..] {
8287 if range
8288 .start
8289 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8290 .is_ge()
8291 {
8292 break;
8293 }
8294 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8295 if let Some(current_row) = &end_row {
8296 if end.row == current_row.row {
8297 continue;
8298 }
8299 }
8300 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8301 if start_row.is_none() {
8302 assert_eq!(end_row, None);
8303 start_row = Some(start);
8304 end_row = Some(end);
8305 continue;
8306 }
8307 if let Some(current_end) = end_row.as_mut() {
8308 if start.row > current_end.row + 1 {
8309 push_region(start_row, end_row);
8310 start_row = Some(start);
8311 end_row = Some(end);
8312 } else {
8313 // Merge two hunks.
8314 *current_end = end;
8315 }
8316 } else {
8317 unreachable!();
8318 }
8319 }
8320 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8321 push_region(start_row, end_row);
8322 results
8323 }
8324
8325 pub fn highlight_text<T: 'static>(
8326 &mut self,
8327 ranges: Vec<Range<Anchor>>,
8328 style: HighlightStyle,
8329 cx: &mut ViewContext<Self>,
8330 ) {
8331 self.display_map.update(cx, |map, _| {
8332 map.highlight_text(TypeId::of::<T>(), ranges, style)
8333 });
8334 cx.notify();
8335 }
8336
8337 pub(crate) fn highlight_inlays<T: 'static>(
8338 &mut self,
8339 highlights: Vec<InlayHighlight>,
8340 style: HighlightStyle,
8341 cx: &mut ViewContext<Self>,
8342 ) {
8343 self.display_map.update(cx, |map, _| {
8344 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8345 });
8346 cx.notify();
8347 }
8348
8349 pub fn text_highlights<'a, T: 'static>(
8350 &'a self,
8351 cx: &'a AppContext,
8352 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8353 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8354 }
8355
8356 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8357 let cleared = self
8358 .display_map
8359 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8360 if cleared {
8361 cx.notify();
8362 }
8363 }
8364
8365 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8366 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8367 && self.focus_handle.is_focused(cx)
8368 }
8369
8370 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8371 cx.notify();
8372 }
8373
8374 fn on_buffer_event(
8375 &mut self,
8376 multibuffer: Model<MultiBuffer>,
8377 event: &multi_buffer::Event,
8378 cx: &mut ViewContext<Self>,
8379 ) {
8380 match event {
8381 multi_buffer::Event::Edited {
8382 singleton_buffer_edited,
8383 } => {
8384 self.refresh_active_diagnostics(cx);
8385 self.refresh_code_actions(cx);
8386 if self.has_active_copilot_suggestion(cx) {
8387 self.update_visible_copilot_suggestion(cx);
8388 }
8389 cx.emit(EditorEvent::BufferEdited);
8390 cx.emit(SearchEvent::MatchesInvalidated);
8391
8392 if *singleton_buffer_edited {
8393 if let Some(project) = &self.project {
8394 let project = project.read(cx);
8395 let languages_affected = multibuffer
8396 .read(cx)
8397 .all_buffers()
8398 .into_iter()
8399 .filter_map(|buffer| {
8400 let buffer = buffer.read(cx);
8401 let language = buffer.language()?;
8402 if project.is_local()
8403 && project.language_servers_for_buffer(buffer, cx).count() == 0
8404 {
8405 None
8406 } else {
8407 Some(language)
8408 }
8409 })
8410 .cloned()
8411 .collect::<HashSet<_>>();
8412 if !languages_affected.is_empty() {
8413 self.refresh_inlay_hints(
8414 InlayHintRefreshReason::BufferEdited(languages_affected),
8415 cx,
8416 );
8417 }
8418 }
8419 }
8420
8421 let Some(project) = &self.project else { return };
8422 let telemetry = project.read(cx).client().telemetry().clone();
8423 telemetry.log_edit_event("editor");
8424 }
8425 multi_buffer::Event::ExcerptsAdded {
8426 buffer,
8427 predecessor,
8428 excerpts,
8429 } => {
8430 cx.emit(EditorEvent::ExcerptsAdded {
8431 buffer: buffer.clone(),
8432 predecessor: *predecessor,
8433 excerpts: excerpts.clone(),
8434 });
8435 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8436 }
8437 multi_buffer::Event::ExcerptsRemoved { ids } => {
8438 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8439 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8440 }
8441 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8442 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8443 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8444 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8445 cx.emit(EditorEvent::TitleChanged)
8446 }
8447 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8448 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8449 multi_buffer::Event::DiagnosticsUpdated => {
8450 self.refresh_active_diagnostics(cx);
8451 }
8452 _ => {}
8453 };
8454 }
8455
8456 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8457 cx.notify();
8458 }
8459
8460 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8461 self.refresh_copilot_suggestions(true, cx);
8462 self.refresh_inlay_hints(
8463 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8464 self.selections.newest_anchor().head(),
8465 &self.buffer.read(cx).snapshot(cx),
8466 cx,
8467 )),
8468 cx,
8469 );
8470 cx.notify();
8471 }
8472
8473 pub fn set_searchable(&mut self, searchable: bool) {
8474 self.searchable = searchable;
8475 }
8476
8477 pub fn searchable(&self) -> bool {
8478 self.searchable
8479 }
8480
8481 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8482 let buffer = self.buffer.read(cx);
8483 if buffer.is_singleton() {
8484 cx.propagate();
8485 return;
8486 }
8487
8488 let Some(workspace) = self.workspace() else {
8489 cx.propagate();
8490 return;
8491 };
8492
8493 let mut new_selections_by_buffer = HashMap::default();
8494 for selection in self.selections.all::<usize>(cx) {
8495 for (buffer, mut range, _) in
8496 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8497 {
8498 if selection.reversed {
8499 mem::swap(&mut range.start, &mut range.end);
8500 }
8501 new_selections_by_buffer
8502 .entry(buffer)
8503 .or_insert(Vec::new())
8504 .push(range)
8505 }
8506 }
8507
8508 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8509
8510 // We defer the pane interaction because we ourselves are a workspace item
8511 // and activating a new item causes the pane to call a method on us reentrantly,
8512 // which panics if we're on the stack.
8513 cx.window_context().defer(move |cx| {
8514 workspace.update(cx, |workspace, cx| {
8515 let pane = workspace.active_pane().clone();
8516 pane.update(cx, |pane, _| pane.disable_history());
8517
8518 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8519 let editor = workspace.open_project_item::<Self>(buffer, cx);
8520 editor.update(cx, |editor, cx| {
8521 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8522 s.select_ranges(ranges);
8523 });
8524 });
8525 }
8526
8527 pane.update(cx, |pane, _| pane.enable_history());
8528 })
8529 });
8530 }
8531
8532 fn jump(
8533 &mut self,
8534 path: ProjectPath,
8535 position: Point,
8536 anchor: language::Anchor,
8537 cx: &mut ViewContext<Self>,
8538 ) {
8539 let workspace = self.workspace();
8540 cx.spawn(|_, mut cx| async move {
8541 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8542 let editor = workspace.update(&mut cx, |workspace, cx| {
8543 workspace.open_path(path, None, true, cx)
8544 })?;
8545 let editor = editor
8546 .await?
8547 .downcast::<Editor>()
8548 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8549 .downgrade();
8550 editor.update(&mut cx, |editor, cx| {
8551 let buffer = editor
8552 .buffer()
8553 .read(cx)
8554 .as_singleton()
8555 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8556 let buffer = buffer.read(cx);
8557 let cursor = if buffer.can_resolve(&anchor) {
8558 language::ToPoint::to_point(&anchor, buffer)
8559 } else {
8560 buffer.clip_point(position, Bias::Left)
8561 };
8562
8563 let nav_history = editor.nav_history.take();
8564 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8565 s.select_ranges([cursor..cursor]);
8566 });
8567 editor.nav_history = nav_history;
8568
8569 anyhow::Ok(())
8570 })??;
8571
8572 anyhow::Ok(())
8573 })
8574 .detach_and_log_err(cx);
8575 }
8576
8577 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8578 let snapshot = self.buffer.read(cx).read(cx);
8579 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8580 Some(
8581 ranges
8582 .iter()
8583 .map(move |range| {
8584 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8585 })
8586 .collect(),
8587 )
8588 }
8589
8590 fn selection_replacement_ranges(
8591 &self,
8592 range: Range<OffsetUtf16>,
8593 cx: &AppContext,
8594 ) -> Vec<Range<OffsetUtf16>> {
8595 let selections = self.selections.all::<OffsetUtf16>(cx);
8596 let newest_selection = selections
8597 .iter()
8598 .max_by_key(|selection| selection.id)
8599 .unwrap();
8600 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8601 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8602 let snapshot = self.buffer.read(cx).read(cx);
8603 selections
8604 .into_iter()
8605 .map(|mut selection| {
8606 selection.start.0 =
8607 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8608 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8609 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8610 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8611 })
8612 .collect()
8613 }
8614
8615 fn report_copilot_event(
8616 &self,
8617 suggestion_id: Option<String>,
8618 suggestion_accepted: bool,
8619 cx: &AppContext,
8620 ) {
8621 let Some(project) = &self.project else { return };
8622
8623 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8624 let file_extension = self
8625 .buffer
8626 .read(cx)
8627 .as_singleton()
8628 .and_then(|b| b.read(cx).file())
8629 .and_then(|file| Path::new(file.file_name(cx)).extension())
8630 .and_then(|e| e.to_str())
8631 .map(|a| a.to_string());
8632
8633 let telemetry = project.read(cx).client().telemetry().clone();
8634
8635 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8636 }
8637
8638 #[cfg(any(test, feature = "test-support"))]
8639 fn report_editor_event(
8640 &self,
8641 _operation: &'static str,
8642 _file_extension: Option<String>,
8643 _cx: &AppContext,
8644 ) {
8645 }
8646
8647 #[cfg(not(any(test, feature = "test-support")))]
8648 fn report_editor_event(
8649 &self,
8650 operation: &'static str,
8651 file_extension: Option<String>,
8652 cx: &AppContext,
8653 ) {
8654 let Some(project) = &self.project else { return };
8655
8656 // If None, we are in a file without an extension
8657 let file = self
8658 .buffer
8659 .read(cx)
8660 .as_singleton()
8661 .and_then(|b| b.read(cx).file());
8662 let file_extension = file_extension.or(file
8663 .as_ref()
8664 .and_then(|file| Path::new(file.file_name(cx)).extension())
8665 .and_then(|e| e.to_str())
8666 .map(|a| a.to_string()));
8667
8668 let vim_mode = cx
8669 .global::<SettingsStore>()
8670 .raw_user_settings()
8671 .get("vim_mode")
8672 == Some(&serde_json::Value::Bool(true));
8673 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8674 let copilot_enabled_for_language = self
8675 .buffer
8676 .read(cx)
8677 .settings_at(0, cx)
8678 .show_copilot_suggestions;
8679
8680 let telemetry = project.read(cx).client().telemetry().clone();
8681 telemetry.report_editor_event(
8682 file_extension,
8683 vim_mode,
8684 operation,
8685 copilot_enabled,
8686 copilot_enabled_for_language,
8687 )
8688 }
8689
8690 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8691 /// with each line being an array of {text, highlight} objects.
8692 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8693 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8694 return;
8695 };
8696
8697 #[derive(Serialize)]
8698 struct Chunk<'a> {
8699 text: String,
8700 highlight: Option<&'a str>,
8701 }
8702
8703 let snapshot = buffer.read(cx).snapshot();
8704 let range = self
8705 .selected_text_range(cx)
8706 .and_then(|selected_range| {
8707 if selected_range.is_empty() {
8708 None
8709 } else {
8710 Some(selected_range)
8711 }
8712 })
8713 .unwrap_or_else(|| 0..snapshot.len());
8714
8715 let chunks = snapshot.chunks(range, true);
8716 let mut lines = Vec::new();
8717 let mut line: VecDeque<Chunk> = VecDeque::new();
8718
8719 let Some(style) = self.style.as_ref() else {
8720 return;
8721 };
8722
8723 for chunk in chunks {
8724 let highlight = chunk
8725 .syntax_highlight_id
8726 .and_then(|id| id.name(&style.syntax));
8727 let mut chunk_lines = chunk.text.split("\n").peekable();
8728 while let Some(text) = chunk_lines.next() {
8729 let mut merged_with_last_token = false;
8730 if let Some(last_token) = line.back_mut() {
8731 if last_token.highlight == highlight {
8732 last_token.text.push_str(text);
8733 merged_with_last_token = true;
8734 }
8735 }
8736
8737 if !merged_with_last_token {
8738 line.push_back(Chunk {
8739 text: text.into(),
8740 highlight,
8741 });
8742 }
8743
8744 if chunk_lines.peek().is_some() {
8745 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8746 line.pop_front();
8747 }
8748 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8749 line.pop_back();
8750 }
8751
8752 lines.push(mem::take(&mut line));
8753 }
8754 }
8755 }
8756
8757 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8758 return;
8759 };
8760 cx.write_to_clipboard(ClipboardItem::new(lines));
8761 }
8762
8763 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8764 &self.inlay_hint_cache
8765 }
8766
8767 pub fn replay_insert_event(
8768 &mut self,
8769 text: &str,
8770 relative_utf16_range: Option<Range<isize>>,
8771 cx: &mut ViewContext<Self>,
8772 ) {
8773 if !self.input_enabled {
8774 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8775 return;
8776 }
8777 if let Some(relative_utf16_range) = relative_utf16_range {
8778 let selections = self.selections.all::<OffsetUtf16>(cx);
8779 self.change_selections(None, cx, |s| {
8780 let new_ranges = selections.into_iter().map(|range| {
8781 let start = OffsetUtf16(
8782 range
8783 .head()
8784 .0
8785 .saturating_add_signed(relative_utf16_range.start),
8786 );
8787 let end = OffsetUtf16(
8788 range
8789 .head()
8790 .0
8791 .saturating_add_signed(relative_utf16_range.end),
8792 );
8793 start..end
8794 });
8795 s.select_ranges(new_ranges);
8796 });
8797 }
8798
8799 self.handle_input(text, cx);
8800 }
8801
8802 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8803 let Some(project) = self.project.as_ref() else {
8804 return false;
8805 };
8806 let project = project.read(cx);
8807
8808 let mut supports = false;
8809 self.buffer().read(cx).for_each_buffer(|buffer| {
8810 if !supports {
8811 supports = project
8812 .language_servers_for_buffer(buffer.read(cx), cx)
8813 .any(
8814 |(_, server)| match server.capabilities().inlay_hint_provider {
8815 Some(lsp::OneOf::Left(enabled)) => enabled,
8816 Some(lsp::OneOf::Right(_)) => true,
8817 None => false,
8818 },
8819 )
8820 }
8821 });
8822 supports
8823 }
8824
8825 pub fn focus(&self, cx: &mut WindowContext) {
8826 cx.focus(&self.focus_handle)
8827 }
8828
8829 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8830 self.focus_handle.is_focused(cx)
8831 }
8832
8833 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8834 cx.emit(EditorEvent::Focused);
8835
8836 if let Some(rename) = self.pending_rename.as_ref() {
8837 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8838 cx.focus(&rename_editor_focus_handle);
8839 } else {
8840 self.blink_manager.update(cx, BlinkManager::enable);
8841 self.show_cursor_names(cx);
8842 self.buffer.update(cx, |buffer, cx| {
8843 buffer.finalize_last_transaction(cx);
8844 if self.leader_peer_id.is_none() {
8845 buffer.set_active_selections(
8846 &self.selections.disjoint_anchors(),
8847 self.selections.line_mode,
8848 self.cursor_shape,
8849 cx,
8850 );
8851 }
8852 });
8853 }
8854 }
8855
8856 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
8857 self.blink_manager.update(cx, BlinkManager::disable);
8858 self.buffer
8859 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
8860 self.hide_context_menu(cx);
8861 hide_hover(self, cx);
8862 cx.emit(EditorEvent::Blurred);
8863 cx.notify();
8864 }
8865
8866 pub fn register_action<A: Action>(
8867 &mut self,
8868 listener: impl Fn(&A, &mut WindowContext) + 'static,
8869 ) -> &mut Self {
8870 let listener = Arc::new(listener);
8871
8872 self.editor_actions.push(Box::new(move |cx| {
8873 let _view = cx.view().clone();
8874 let cx = cx.window_context();
8875 let listener = listener.clone();
8876 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
8877 let action = action.downcast_ref().unwrap();
8878 if phase == DispatchPhase::Bubble {
8879 listener(action, cx)
8880 }
8881 })
8882 }));
8883 self
8884 }
8885}
8886
8887pub trait CollaborationHub {
8888 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
8889 fn user_participant_indices<'a>(
8890 &self,
8891 cx: &'a AppContext,
8892 ) -> &'a HashMap<u64, ParticipantIndex>;
8893 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
8894}
8895
8896impl CollaborationHub for Model<Project> {
8897 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
8898 self.read(cx).collaborators()
8899 }
8900
8901 fn user_participant_indices<'a>(
8902 &self,
8903 cx: &'a AppContext,
8904 ) -> &'a HashMap<u64, ParticipantIndex> {
8905 self.read(cx).user_store().read(cx).participant_indices()
8906 }
8907
8908 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
8909 let this = self.read(cx);
8910 let user_ids = this.collaborators().values().map(|c| c.user_id);
8911 this.user_store().read_with(cx, |user_store, cx| {
8912 user_store.participant_names(user_ids, cx)
8913 })
8914 }
8915}
8916
8917pub trait CompletionProvider {
8918 fn completions(
8919 &self,
8920 buffer: &Model<Buffer>,
8921 buffer_position: text::Anchor,
8922 cx: &mut ViewContext<Editor>,
8923 ) -> Task<Result<Vec<Completion>>>;
8924
8925 fn resolve_completions(
8926 &self,
8927 completion_indices: Vec<usize>,
8928 completions: Arc<RwLock<Box<[Completion]>>>,
8929 cx: &mut ViewContext<Editor>,
8930 ) -> Task<Result<bool>>;
8931
8932 fn apply_additional_edits_for_completion(
8933 &self,
8934 buffer: Model<Buffer>,
8935 completion: Completion,
8936 push_to_history: bool,
8937 cx: &mut ViewContext<Editor>,
8938 ) -> Task<Result<Option<language::Transaction>>>;
8939}
8940
8941impl CompletionProvider for Model<Project> {
8942 fn completions(
8943 &self,
8944 buffer: &Model<Buffer>,
8945 buffer_position: text::Anchor,
8946 cx: &mut ViewContext<Editor>,
8947 ) -> Task<Result<Vec<Completion>>> {
8948 self.update(cx, |project, cx| {
8949 project.completions(&buffer, buffer_position, cx)
8950 })
8951 }
8952
8953 fn resolve_completions(
8954 &self,
8955 completion_indices: Vec<usize>,
8956 completions: Arc<RwLock<Box<[Completion]>>>,
8957 cx: &mut ViewContext<Editor>,
8958 ) -> Task<Result<bool>> {
8959 self.update(cx, |project, cx| {
8960 project.resolve_completions(completion_indices, completions, cx)
8961 })
8962 }
8963
8964 fn apply_additional_edits_for_completion(
8965 &self,
8966 buffer: Model<Buffer>,
8967 completion: Completion,
8968 push_to_history: bool,
8969 cx: &mut ViewContext<Editor>,
8970 ) -> Task<Result<Option<language::Transaction>>> {
8971 self.update(cx, |project, cx| {
8972 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
8973 })
8974 }
8975}
8976
8977fn inlay_hint_settings(
8978 location: Anchor,
8979 snapshot: &MultiBufferSnapshot,
8980 cx: &mut ViewContext<'_, Editor>,
8981) -> InlayHintSettings {
8982 let file = snapshot.file_at(location);
8983 let language = snapshot.language_at(location);
8984 let settings = all_language_settings(file, cx);
8985 settings
8986 .language(language.map(|l| l.name()).as_deref())
8987 .inlay_hints
8988}
8989
8990fn consume_contiguous_rows(
8991 contiguous_row_selections: &mut Vec<Selection<Point>>,
8992 selection: &Selection<Point>,
8993 display_map: &DisplaySnapshot,
8994 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
8995) -> (u32, u32) {
8996 contiguous_row_selections.push(selection.clone());
8997 let start_row = selection.start.row;
8998 let mut end_row = ending_row(selection, display_map);
8999
9000 while let Some(next_selection) = selections.peek() {
9001 if next_selection.start.row <= end_row {
9002 end_row = ending_row(next_selection, display_map);
9003 contiguous_row_selections.push(selections.next().unwrap().clone());
9004 } else {
9005 break;
9006 }
9007 }
9008 (start_row, end_row)
9009}
9010
9011fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9012 if next_selection.end.column > 0 || next_selection.is_empty() {
9013 display_map.next_line_boundary(next_selection.end).0.row + 1
9014 } else {
9015 next_selection.end.row
9016 }
9017}
9018
9019impl EditorSnapshot {
9020 pub fn remote_selections_in_range<'a>(
9021 &'a self,
9022 range: &'a Range<Anchor>,
9023 collaboration_hub: &dyn CollaborationHub,
9024 cx: &'a AppContext,
9025 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9026 let participant_names = collaboration_hub.user_names(cx);
9027 let participant_indices = collaboration_hub.user_participant_indices(cx);
9028 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9029 let collaborators_by_replica_id = collaborators_by_peer_id
9030 .iter()
9031 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9032 .collect::<HashMap<_, _>>();
9033 self.buffer_snapshot
9034 .remote_selections_in_range(range)
9035 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9036 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9037 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9038 let user_name = participant_names.get(&collaborator.user_id).cloned();
9039 Some(RemoteSelection {
9040 replica_id,
9041 selection,
9042 cursor_shape,
9043 line_mode,
9044 participant_index,
9045 peer_id: collaborator.peer_id,
9046 user_name,
9047 })
9048 })
9049 }
9050
9051 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9052 self.display_snapshot.buffer_snapshot.language_at(position)
9053 }
9054
9055 pub fn is_focused(&self) -> bool {
9056 self.is_focused
9057 }
9058
9059 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9060 self.placeholder_text.as_ref()
9061 }
9062
9063 pub fn scroll_position(&self) -> gpui::Point<f32> {
9064 self.scroll_anchor.scroll_position(&self.display_snapshot)
9065 }
9066}
9067
9068impl Deref for EditorSnapshot {
9069 type Target = DisplaySnapshot;
9070
9071 fn deref(&self) -> &Self::Target {
9072 &self.display_snapshot
9073 }
9074}
9075
9076#[derive(Clone, Debug, PartialEq, Eq)]
9077pub enum EditorEvent {
9078 InputIgnored {
9079 text: Arc<str>,
9080 },
9081 InputHandled {
9082 utf16_range_to_replace: Option<Range<isize>>,
9083 text: Arc<str>,
9084 },
9085 ExcerptsAdded {
9086 buffer: Model<Buffer>,
9087 predecessor: ExcerptId,
9088 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9089 },
9090 ExcerptsRemoved {
9091 ids: Vec<ExcerptId>,
9092 },
9093 BufferEdited,
9094 Edited,
9095 Reparsed,
9096 Focused,
9097 Blurred,
9098 DirtyChanged,
9099 Saved,
9100 TitleChanged,
9101 DiffBaseChanged,
9102 SelectionsChanged {
9103 local: bool,
9104 },
9105 ScrollPositionChanged {
9106 local: bool,
9107 autoscroll: bool,
9108 },
9109 Closed,
9110}
9111
9112impl EventEmitter<EditorEvent> for Editor {}
9113
9114impl FocusableView for Editor {
9115 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9116 self.focus_handle.clone()
9117 }
9118}
9119
9120impl Render for Editor {
9121 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9122 let settings = ThemeSettings::get_global(cx);
9123 let text_style = match self.mode {
9124 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9125 color: cx.theme().colors().editor_foreground,
9126 font_family: settings.ui_font.family.clone(),
9127 font_features: settings.ui_font.features,
9128 font_size: rems(0.875).into(),
9129 font_weight: FontWeight::NORMAL,
9130 font_style: FontStyle::Normal,
9131 line_height: relative(settings.buffer_line_height.value()),
9132 background_color: None,
9133 underline: None,
9134 white_space: WhiteSpace::Normal,
9135 },
9136
9137 EditorMode::Full => TextStyle {
9138 color: cx.theme().colors().editor_foreground,
9139 font_family: settings.buffer_font.family.clone(),
9140 font_features: settings.buffer_font.features,
9141 font_size: settings.buffer_font_size(cx).into(),
9142 font_weight: FontWeight::NORMAL,
9143 font_style: FontStyle::Normal,
9144 line_height: relative(settings.buffer_line_height.value()),
9145 background_color: None,
9146 underline: None,
9147 white_space: WhiteSpace::Normal,
9148 },
9149 };
9150
9151 let background = match self.mode {
9152 EditorMode::SingleLine => cx.theme().system().transparent,
9153 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9154 EditorMode::Full => cx.theme().colors().editor_background,
9155 };
9156
9157 EditorElement::new(
9158 cx.view(),
9159 EditorStyle {
9160 background,
9161 local_player: cx.theme().players().local(),
9162 text: text_style,
9163 scrollbar_width: px(12.),
9164 syntax: cx.theme().syntax().clone(),
9165 status: cx.theme().status().clone(),
9166 inlays_style: HighlightStyle {
9167 color: Some(cx.theme().status().hint),
9168 font_weight: Some(FontWeight::BOLD),
9169 ..HighlightStyle::default()
9170 },
9171 suggestions_style: HighlightStyle {
9172 color: Some(cx.theme().status().predictive),
9173 ..HighlightStyle::default()
9174 },
9175 },
9176 )
9177 }
9178}
9179
9180impl InputHandler for Editor {
9181 fn text_for_range(
9182 &mut self,
9183 range_utf16: Range<usize>,
9184 cx: &mut ViewContext<Self>,
9185 ) -> Option<String> {
9186 Some(
9187 self.buffer
9188 .read(cx)
9189 .read(cx)
9190 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9191 .collect(),
9192 )
9193 }
9194
9195 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9196 // Prevent the IME menu from appearing when holding down an alphabetic key
9197 // while input is disabled.
9198 if !self.input_enabled {
9199 return None;
9200 }
9201
9202 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9203 Some(range.start.0..range.end.0)
9204 }
9205
9206 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9207 let snapshot = self.buffer.read(cx).read(cx);
9208 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9209 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9210 }
9211
9212 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9213 self.clear_highlights::<InputComposition>(cx);
9214 self.ime_transaction.take();
9215 }
9216
9217 fn replace_text_in_range(
9218 &mut self,
9219 range_utf16: Option<Range<usize>>,
9220 text: &str,
9221 cx: &mut ViewContext<Self>,
9222 ) {
9223 if !self.input_enabled {
9224 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9225 return;
9226 }
9227
9228 self.transact(cx, |this, cx| {
9229 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9230 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9231 Some(this.selection_replacement_ranges(range_utf16, cx))
9232 } else {
9233 this.marked_text_ranges(cx)
9234 };
9235
9236 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9237 let newest_selection_id = this.selections.newest_anchor().id;
9238 this.selections
9239 .all::<OffsetUtf16>(cx)
9240 .iter()
9241 .zip(ranges_to_replace.iter())
9242 .find_map(|(selection, range)| {
9243 if selection.id == newest_selection_id {
9244 Some(
9245 (range.start.0 as isize - selection.head().0 as isize)
9246 ..(range.end.0 as isize - selection.head().0 as isize),
9247 )
9248 } else {
9249 None
9250 }
9251 })
9252 });
9253
9254 cx.emit(EditorEvent::InputHandled {
9255 utf16_range_to_replace: range_to_replace,
9256 text: text.into(),
9257 });
9258
9259 if let Some(new_selected_ranges) = new_selected_ranges {
9260 this.change_selections(None, cx, |selections| {
9261 selections.select_ranges(new_selected_ranges)
9262 });
9263 }
9264
9265 this.handle_input(text, cx);
9266 });
9267
9268 if let Some(transaction) = self.ime_transaction {
9269 self.buffer.update(cx, |buffer, cx| {
9270 buffer.group_until_transaction(transaction, cx);
9271 });
9272 }
9273
9274 self.unmark_text(cx);
9275 }
9276
9277 fn replace_and_mark_text_in_range(
9278 &mut self,
9279 range_utf16: Option<Range<usize>>,
9280 text: &str,
9281 new_selected_range_utf16: Option<Range<usize>>,
9282 cx: &mut ViewContext<Self>,
9283 ) {
9284 if !self.input_enabled {
9285 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9286 return;
9287 }
9288
9289 let transaction = self.transact(cx, |this, cx| {
9290 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9291 let snapshot = this.buffer.read(cx).read(cx);
9292 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9293 for marked_range in &mut marked_ranges {
9294 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9295 marked_range.start.0 += relative_range_utf16.start;
9296 marked_range.start =
9297 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9298 marked_range.end =
9299 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9300 }
9301 }
9302 Some(marked_ranges)
9303 } else if let Some(range_utf16) = range_utf16 {
9304 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9305 Some(this.selection_replacement_ranges(range_utf16, cx))
9306 } else {
9307 None
9308 };
9309
9310 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9311 let newest_selection_id = this.selections.newest_anchor().id;
9312 this.selections
9313 .all::<OffsetUtf16>(cx)
9314 .iter()
9315 .zip(ranges_to_replace.iter())
9316 .find_map(|(selection, range)| {
9317 if selection.id == newest_selection_id {
9318 Some(
9319 (range.start.0 as isize - selection.head().0 as isize)
9320 ..(range.end.0 as isize - selection.head().0 as isize),
9321 )
9322 } else {
9323 None
9324 }
9325 })
9326 });
9327
9328 cx.emit(EditorEvent::InputHandled {
9329 utf16_range_to_replace: range_to_replace,
9330 text: text.into(),
9331 });
9332
9333 if let Some(ranges) = ranges_to_replace {
9334 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9335 }
9336
9337 let marked_ranges = {
9338 let snapshot = this.buffer.read(cx).read(cx);
9339 this.selections
9340 .disjoint_anchors()
9341 .iter()
9342 .map(|selection| {
9343 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9344 })
9345 .collect::<Vec<_>>()
9346 };
9347
9348 if text.is_empty() {
9349 this.unmark_text(cx);
9350 } else {
9351 this.highlight_text::<InputComposition>(
9352 marked_ranges.clone(),
9353 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9354 cx,
9355 );
9356 }
9357
9358 this.handle_input(text, cx);
9359
9360 if let Some(new_selected_range) = new_selected_range_utf16 {
9361 let snapshot = this.buffer.read(cx).read(cx);
9362 let new_selected_ranges = marked_ranges
9363 .into_iter()
9364 .map(|marked_range| {
9365 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9366 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9367 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9368 snapshot.clip_offset_utf16(new_start, Bias::Left)
9369 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9370 })
9371 .collect::<Vec<_>>();
9372
9373 drop(snapshot);
9374 this.change_selections(None, cx, |selections| {
9375 selections.select_ranges(new_selected_ranges)
9376 });
9377 }
9378 });
9379
9380 self.ime_transaction = self.ime_transaction.or(transaction);
9381 if let Some(transaction) = self.ime_transaction {
9382 self.buffer.update(cx, |buffer, cx| {
9383 buffer.group_until_transaction(transaction, cx);
9384 });
9385 }
9386
9387 if self.text_highlights::<InputComposition>(cx).is_none() {
9388 self.ime_transaction.take();
9389 }
9390 }
9391
9392 fn bounds_for_range(
9393 &mut self,
9394 range_utf16: Range<usize>,
9395 element_bounds: gpui::Bounds<Pixels>,
9396 cx: &mut ViewContext<Self>,
9397 ) -> Option<gpui::Bounds<Pixels>> {
9398 let text_layout_details = self.text_layout_details(cx);
9399 let style = &text_layout_details.editor_style;
9400 let font_id = cx.text_system().resolve_font(&style.text.font());
9401 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9402 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9403 let em_width = cx
9404 .text_system()
9405 .typographic_bounds(font_id, font_size, 'm')
9406 .unwrap()
9407 .size
9408 .width;
9409
9410 let snapshot = self.snapshot(cx);
9411 let scroll_position = snapshot.scroll_position();
9412 let scroll_left = scroll_position.x * em_width;
9413
9414 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9415 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9416 + self.gutter_width;
9417 let y = line_height * (start.row() as f32 - scroll_position.y);
9418
9419 Some(Bounds {
9420 origin: element_bounds.origin + point(x, y),
9421 size: size(em_width, line_height),
9422 })
9423 }
9424}
9425
9426trait SelectionExt {
9427 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9428 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9429 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9430 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9431 -> Range<u32>;
9432}
9433
9434impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9435 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9436 let start = self.start.to_point(buffer);
9437 let end = self.end.to_point(buffer);
9438 if self.reversed {
9439 end..start
9440 } else {
9441 start..end
9442 }
9443 }
9444
9445 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9446 let start = self.start.to_offset(buffer);
9447 let end = self.end.to_offset(buffer);
9448 if self.reversed {
9449 end..start
9450 } else {
9451 start..end
9452 }
9453 }
9454
9455 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9456 let start = self
9457 .start
9458 .to_point(&map.buffer_snapshot)
9459 .to_display_point(map);
9460 let end = self
9461 .end
9462 .to_point(&map.buffer_snapshot)
9463 .to_display_point(map);
9464 if self.reversed {
9465 end..start
9466 } else {
9467 start..end
9468 }
9469 }
9470
9471 fn spanned_rows(
9472 &self,
9473 include_end_if_at_line_start: bool,
9474 map: &DisplaySnapshot,
9475 ) -> Range<u32> {
9476 let start = self.start.to_point(&map.buffer_snapshot);
9477 let mut end = self.end.to_point(&map.buffer_snapshot);
9478 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9479 end.row -= 1;
9480 }
9481
9482 let buffer_start = map.prev_line_boundary(start).0;
9483 let buffer_end = map.next_line_boundary(end).0;
9484 buffer_start.row..buffer_end.row + 1
9485 }
9486}
9487
9488impl<T: InvalidationRegion> InvalidationStack<T> {
9489 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9490 where
9491 S: Clone + ToOffset,
9492 {
9493 while let Some(region) = self.last() {
9494 let all_selections_inside_invalidation_ranges =
9495 if selections.len() == region.ranges().len() {
9496 selections
9497 .iter()
9498 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9499 .all(|(selection, invalidation_range)| {
9500 let head = selection.head().to_offset(buffer);
9501 invalidation_range.start <= head && invalidation_range.end >= head
9502 })
9503 } else {
9504 false
9505 };
9506
9507 if all_selections_inside_invalidation_ranges {
9508 break;
9509 } else {
9510 self.pop();
9511 }
9512 }
9513 }
9514}
9515
9516impl<T> Default for InvalidationStack<T> {
9517 fn default() -> Self {
9518 Self(Default::default())
9519 }
9520}
9521
9522impl<T> Deref for InvalidationStack<T> {
9523 type Target = Vec<T>;
9524
9525 fn deref(&self) -> &Self::Target {
9526 &self.0
9527 }
9528}
9529
9530impl<T> DerefMut for InvalidationStack<T> {
9531 fn deref_mut(&mut self) -> &mut Self::Target {
9532 &mut self.0
9533 }
9534}
9535
9536impl InvalidationRegion for SnippetState {
9537 fn ranges(&self) -> &[Range<Anchor>] {
9538 &self.ranges[self.active_index]
9539 }
9540}
9541
9542pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9543 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9544
9545 Arc::new(move |cx: &mut BlockContext| {
9546 let color = Some(cx.theme().colors().text_accent);
9547 let group_id: SharedString = cx.block_id.to_string().into();
9548 // TODO: Nate: We should tint the background of the block with the severity color
9549 // We need to extend the theme before we can do this
9550 h_flex()
9551 .id(cx.block_id)
9552 .group(group_id.clone())
9553 .relative()
9554 .pl(cx.anchor_x)
9555 .size_full()
9556 .gap_2()
9557 .child(
9558 StyledText::new(text_without_backticks.clone()).with_highlights(
9559 &cx.text_style(),
9560 code_ranges.iter().map(|range| {
9561 (
9562 range.clone(),
9563 HighlightStyle {
9564 color,
9565 ..Default::default()
9566 },
9567 )
9568 }),
9569 ),
9570 )
9571 .child(
9572 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9573 .icon_color(Color::Muted)
9574 .size(ButtonSize::Compact)
9575 .style(ButtonStyle::Transparent)
9576 .visible_on_hover(group_id)
9577 .on_click(cx.listener({
9578 let message = diagnostic.message.clone();
9579 move |_, _, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9580 }))
9581 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9582 )
9583 .into_any_element()
9584 })
9585}
9586
9587pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9588 let mut text_without_backticks = String::new();
9589 let mut code_ranges = Vec::new();
9590
9591 if let Some(source) = &diagnostic.source {
9592 text_without_backticks.push_str(&source);
9593 code_ranges.push(0..source.len());
9594 text_without_backticks.push_str(": ");
9595 }
9596
9597 let mut prev_offset = 0;
9598 let mut in_code_block = false;
9599 for (ix, _) in diagnostic
9600 .message
9601 .match_indices('`')
9602 .chain([(diagnostic.message.len(), "")])
9603 {
9604 let prev_len = text_without_backticks.len();
9605 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9606 prev_offset = ix + 1;
9607 if in_code_block {
9608 code_ranges.push(prev_len..text_without_backticks.len());
9609 in_code_block = false;
9610 } else {
9611 in_code_block = true;
9612 }
9613 }
9614
9615 (text_without_backticks.into(), code_ranges)
9616}
9617
9618fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9619 match (severity, valid) {
9620 (DiagnosticSeverity::ERROR, true) => colors.error,
9621 (DiagnosticSeverity::ERROR, false) => colors.error,
9622 (DiagnosticSeverity::WARNING, true) => colors.warning,
9623 (DiagnosticSeverity::WARNING, false) => colors.warning,
9624 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9625 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9626 (DiagnosticSeverity::HINT, true) => colors.info,
9627 (DiagnosticSeverity::HINT, false) => colors.info,
9628 _ => colors.ignored,
9629 }
9630}
9631
9632pub fn styled_runs_for_code_label<'a>(
9633 label: &'a CodeLabel,
9634 syntax_theme: &'a theme::SyntaxTheme,
9635) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9636 let fade_out = HighlightStyle {
9637 fade_out: Some(0.35),
9638 ..Default::default()
9639 };
9640
9641 let mut prev_end = label.filter_range.end;
9642 label
9643 .runs
9644 .iter()
9645 .enumerate()
9646 .flat_map(move |(ix, (range, highlight_id))| {
9647 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9648 style
9649 } else {
9650 return Default::default();
9651 };
9652 let mut muted_style = style;
9653 muted_style.highlight(fade_out);
9654
9655 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9656 if range.start >= label.filter_range.end {
9657 if range.start > prev_end {
9658 runs.push((prev_end..range.start, fade_out));
9659 }
9660 runs.push((range.clone(), muted_style));
9661 } else if range.end <= label.filter_range.end {
9662 runs.push((range.clone(), style));
9663 } else {
9664 runs.push((range.start..label.filter_range.end, style));
9665 runs.push((label.filter_range.end..range.end, muted_style));
9666 }
9667 prev_end = cmp::max(prev_end, range.end);
9668
9669 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9670 runs.push((prev_end..label.text.len(), fade_out));
9671 }
9672
9673 runs
9674 })
9675}
9676
9677pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9678 let mut index = 0;
9679 let mut codepoints = text.char_indices().peekable();
9680
9681 std::iter::from_fn(move || {
9682 let start_index = index;
9683 while let Some((new_index, codepoint)) = codepoints.next() {
9684 index = new_index + codepoint.len_utf8();
9685 let current_upper = codepoint.is_uppercase();
9686 let next_upper = codepoints
9687 .peek()
9688 .map(|(_, c)| c.is_uppercase())
9689 .unwrap_or(false);
9690
9691 if !current_upper && next_upper {
9692 return Some(&text[start_index..index]);
9693 }
9694 }
9695
9696 index = text.len();
9697 if start_index < text.len() {
9698 return Some(&text[start_index..]);
9699 }
9700 None
9701 })
9702 .flat_map(|word| word.split_inclusive('_'))
9703 .flat_map(|word| word.split_inclusive('-'))
9704}
9705
9706trait RangeToAnchorExt {
9707 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9708}
9709
9710impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9711 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9712 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9713 }
9714}