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, InteractiveText, KeyContext, Model, MouseButton, ParentElement, Pixels,
61 Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
62 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakView,
63 WhiteSpace, WindowContext,
64};
65use highlight_matching_bracket::refresh_matching_bracket_highlights;
66use hover_popover::{hide_hover, HoverState};
67use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
68pub use items::MAX_TAB_TITLE_LEN;
69use itertools::Itertools;
70use language::{char_kind, CharKind};
71use language::{
72 language_settings::{self, all_language_settings, InlayHintSettings},
73 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
74 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
75 Language, LanguageServerName, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
76};
77
78use link_go_to_definition::{GoToDefinitionLink, InlayHighlight, LinkGoToDefinitionState};
79use lsp::{DiagnosticSeverity, LanguageServerId};
80use mouse_context_menu::MouseContextMenu;
81use movement::TextLayoutDetails;
82use multi_buffer::ToOffsetUtf16;
83pub use multi_buffer::{
84 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
85 ToPoint,
86};
87use ordered_float::OrderedFloat;
88use parking_lot::RwLock;
89use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
90use rand::prelude::*;
91use rpc::proto::*;
92use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
93use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
94use serde::{Deserialize, Serialize};
95use settings::{Settings, SettingsStore};
96use smallvec::SmallVec;
97use snippet::Snippet;
98use std::{
99 any::TypeId,
100 borrow::Cow,
101 cmp::{self, Ordering, Reverse},
102 mem,
103 num::NonZeroU32,
104 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
105 path::Path,
106 sync::Arc,
107 sync::Weak,
108 time::{Duration, Instant},
109};
110pub use sum_tree::Bias;
111use sum_tree::TreeMap;
112use text::{OffsetUtf16, Rope};
113use theme::{
114 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
115 ThemeColors, ThemeSettings,
116};
117use ui::{
118 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
119 Tooltip,
120};
121use util::{post_inc, RangeExt, ResultExt, TryFutureExt};
122use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
123
124const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
125const MAX_LINE_LEN: usize = 1024;
126const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
127const MAX_SELECTION_HISTORY_LEN: usize = 1024;
128const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
129#[doc(hidden)]
130pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
131#[doc(hidden)]
132pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
133
134pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
135
136pub fn render_parsed_markdown(
137 element_id: impl Into<ElementId>,
138 parsed: &language::ParsedMarkdown,
139 editor_style: &EditorStyle,
140 workspace: Option<WeakView<Workspace>>,
141 cx: &mut ViewContext<Editor>,
142) -> InteractiveText {
143 let code_span_background_color = cx
144 .theme()
145 .colors()
146 .editor_document_highlight_read_background;
147
148 let highlights = gpui::combine_highlights(
149 parsed.highlights.iter().filter_map(|(range, highlight)| {
150 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
151 Some((range.clone(), highlight))
152 }),
153 parsed
154 .regions
155 .iter()
156 .zip(&parsed.region_ranges)
157 .filter_map(|(region, range)| {
158 if region.code {
159 Some((
160 range.clone(),
161 HighlightStyle {
162 background_color: Some(code_span_background_color),
163 ..Default::default()
164 },
165 ))
166 } else {
167 None
168 }
169 }),
170 );
171
172 let mut links = Vec::new();
173 let mut link_ranges = Vec::new();
174 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
175 if let Some(link) = region.link.clone() {
176 links.push(link);
177 link_ranges.push(range.clone());
178 }
179 }
180
181 InteractiveText::new(
182 element_id,
183 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
184 )
185 .on_click(link_ranges, move |clicked_range_ix, cx| {
186 match &links[clicked_range_ix] {
187 markdown::Link::Web { url } => cx.open_url(url),
188 markdown::Link::Path { path } => {
189 if let Some(workspace) = &workspace {
190 _ = workspace.update(cx, |workspace, cx| {
191 workspace.open_abs_path(path.clone(), false, cx).detach();
192 });
193 }
194 }
195 }
196 })
197}
198
199#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
200pub(crate) enum InlayId {
201 Suggestion(usize),
202 Hint(usize),
203}
204
205impl InlayId {
206 fn id(&self) -> usize {
207 match self {
208 Self::Suggestion(id) => *id,
209 Self::Hint(id) => *id,
210 }
211 }
212}
213
214enum DocumentHighlightRead {}
215enum DocumentHighlightWrite {}
216enum InputComposition {}
217
218#[derive(Copy, Clone, PartialEq, Eq)]
219pub enum Direction {
220 Prev,
221 Next,
222}
223
224pub fn init_settings(cx: &mut AppContext) {
225 EditorSettings::register(cx);
226}
227
228pub fn init(cx: &mut AppContext) {
229 init_settings(cx);
230
231 workspace::register_project_item::<Editor>(cx);
232 workspace::register_followable_item::<Editor>(cx);
233 workspace::register_deserializable_item::<Editor>(cx);
234 cx.observe_new_views(
235 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
236 workspace.register_action(Editor::new_file);
237 workspace.register_action(Editor::new_file_in_direction);
238 },
239 )
240 .detach();
241
242 cx.on_action(move |_: &workspace::NewFile, cx| {
243 let app_state = cx.global::<Weak<workspace::AppState>>();
244 if let Some(app_state) = app_state.upgrade() {
245 workspace::open_new(&app_state, cx, |workspace, cx| {
246 Editor::new_file(workspace, &Default::default(), cx)
247 })
248 .detach();
249 }
250 });
251 cx.on_action(move |_: &workspace::NewWindow, cx| {
252 let app_state = cx.global::<Weak<workspace::AppState>>();
253 if let Some(app_state) = app_state.upgrade() {
254 workspace::open_new(&app_state, cx, |workspace, cx| {
255 Editor::new_file(workspace, &Default::default(), cx)
256 })
257 .detach();
258 }
259 });
260}
261
262trait InvalidationRegion {
263 fn ranges(&self) -> &[Range<Anchor>];
264}
265
266#[derive(Clone, Debug, PartialEq)]
267pub enum SelectPhase {
268 Begin {
269 position: DisplayPoint,
270 add: bool,
271 click_count: usize,
272 },
273 BeginColumnar {
274 position: DisplayPoint,
275 goal_column: u32,
276 },
277 Extend {
278 position: DisplayPoint,
279 click_count: usize,
280 },
281 Update {
282 position: DisplayPoint,
283 goal_column: u32,
284 scroll_position: gpui::Point<f32>,
285 },
286 End,
287}
288
289#[derive(Clone, Debug)]
290pub(crate) enum SelectMode {
291 Character,
292 Word(Range<Anchor>),
293 Line(Range<Anchor>),
294 All,
295}
296
297#[derive(Copy, Clone, PartialEq, Eq, Debug)]
298pub enum EditorMode {
299 SingleLine,
300 AutoHeight { max_lines: usize },
301 Full,
302}
303
304#[derive(Clone, Debug)]
305pub enum SoftWrap {
306 None,
307 EditorWidth,
308 Column(u32),
309}
310
311#[derive(Clone)]
312pub struct EditorStyle {
313 pub background: Hsla,
314 pub local_player: PlayerColor,
315 pub text: TextStyle,
316 pub scrollbar_width: Pixels,
317 pub syntax: Arc<SyntaxTheme>,
318 pub status: StatusColors,
319 pub inlays_style: HighlightStyle,
320 pub suggestions_style: HighlightStyle,
321}
322
323impl Default for EditorStyle {
324 fn default() -> Self {
325 Self {
326 background: Hsla::default(),
327 local_player: PlayerColor::default(),
328 text: TextStyle::default(),
329 scrollbar_width: Pixels::default(),
330 syntax: Default::default(),
331 // HACK: Status colors don't have a real default.
332 // We should look into removing the status colors from the editor
333 // style and retrieve them directly from the theme.
334 status: StatusColors::dark(),
335 inlays_style: HighlightStyle::default(),
336 suggestions_style: HighlightStyle::default(),
337 }
338 }
339}
340
341type CompletionId = usize;
342
343// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
344// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
345
346type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
347type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
348
349pub struct Editor {
350 handle: WeakView<Self>,
351 focus_handle: FocusHandle,
352 buffer: Model<MultiBuffer>,
353 display_map: Model<DisplayMap>,
354 pub selections: SelectionsCollection,
355 pub scroll_manager: ScrollManager,
356 columnar_selection_tail: Option<Anchor>,
357 add_selections_state: Option<AddSelectionsState>,
358 select_next_state: Option<SelectNextState>,
359 select_prev_state: Option<SelectNextState>,
360 selection_history: SelectionHistory,
361 autoclose_regions: Vec<AutocloseRegion>,
362 snippet_stack: InvalidationStack<SnippetState>,
363 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
364 ime_transaction: Option<TransactionId>,
365 active_diagnostics: Option<ActiveDiagnosticGroup>,
366 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
367 project: Option<Model<Project>>,
368 completion_provider: Option<Box<dyn CompletionProvider>>,
369 collaboration_hub: Option<Box<dyn CollaborationHub>>,
370 blink_manager: Model<BlinkManager>,
371 show_cursor_names: bool,
372 hovered_cursor: Option<HoveredCursor>,
373 pub show_local_selections: bool,
374 mode: EditorMode,
375 show_gutter: bool,
376 show_wrap_guides: Option<bool>,
377 placeholder_text: Option<Arc<str>>,
378 highlighted_rows: Option<Range<u32>>,
379 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
380 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
381 nav_history: Option<ItemNavHistory>,
382 context_menu: RwLock<Option<ContextMenu>>,
383 mouse_context_menu: Option<MouseContextMenu>,
384 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
385 next_completion_id: CompletionId,
386 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
387 code_actions_task: Option<Task<()>>,
388 document_highlights_task: Option<Task<()>>,
389 pending_rename: Option<RenameState>,
390 searchable: bool,
391 cursor_shape: CursorShape,
392 collapse_matches: bool,
393 autoindent_mode: Option<AutoindentMode>,
394 workspace: Option<(WeakView<Workspace>, i64)>,
395 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
396 input_enabled: bool,
397 read_only: bool,
398 leader_peer_id: Option<PeerId>,
399 remote_id: Option<ViewId>,
400 hover_state: HoverState,
401 gutter_hovered: bool,
402 link_go_to_definition_state: LinkGoToDefinitionState,
403 copilot_state: CopilotState,
404 inlay_hint_cache: InlayHintCache,
405 next_inlay_id: usize,
406 _subscriptions: Vec<Subscription>,
407 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
408 gutter_width: Pixels,
409 style: Option<EditorStyle>,
410 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
411 show_copilot_suggestions: bool,
412 use_autoclose: bool,
413}
414
415pub struct EditorSnapshot {
416 pub mode: EditorMode,
417 pub show_gutter: bool,
418 pub display_snapshot: DisplaySnapshot,
419 pub placeholder_text: Option<Arc<str>>,
420 is_focused: bool,
421 scroll_anchor: ScrollAnchor,
422 ongoing_scroll: OngoingScroll,
423}
424
425#[derive(Debug)]
426pub struct RemoteSelection {
427 pub replica_id: ReplicaId,
428 pub selection: Selection<Anchor>,
429 pub cursor_shape: CursorShape,
430 pub peer_id: PeerId,
431 pub line_mode: bool,
432 pub participant_index: Option<ParticipantIndex>,
433 pub user_name: Option<SharedString>,
434}
435
436#[derive(Clone, Debug)]
437struct SelectionHistoryEntry {
438 selections: Arc<[Selection<Anchor>]>,
439 select_next_state: Option<SelectNextState>,
440 select_prev_state: Option<SelectNextState>,
441 add_selections_state: Option<AddSelectionsState>,
442}
443
444enum SelectionHistoryMode {
445 Normal,
446 Undoing,
447 Redoing,
448}
449
450struct HoveredCursor {
451 replica_id: u16,
452 selection_id: usize,
453}
454
455impl Default for SelectionHistoryMode {
456 fn default() -> Self {
457 Self::Normal
458 }
459}
460
461#[derive(Default)]
462struct SelectionHistory {
463 #[allow(clippy::type_complexity)]
464 selections_by_transaction:
465 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
466 mode: SelectionHistoryMode,
467 undo_stack: VecDeque<SelectionHistoryEntry>,
468 redo_stack: VecDeque<SelectionHistoryEntry>,
469}
470
471impl SelectionHistory {
472 fn insert_transaction(
473 &mut self,
474 transaction_id: TransactionId,
475 selections: Arc<[Selection<Anchor>]>,
476 ) {
477 self.selections_by_transaction
478 .insert(transaction_id, (selections, None));
479 }
480
481 #[allow(clippy::type_complexity)]
482 fn transaction(
483 &self,
484 transaction_id: TransactionId,
485 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
486 self.selections_by_transaction.get(&transaction_id)
487 }
488
489 #[allow(clippy::type_complexity)]
490 fn transaction_mut(
491 &mut self,
492 transaction_id: TransactionId,
493 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
494 self.selections_by_transaction.get_mut(&transaction_id)
495 }
496
497 fn push(&mut self, entry: SelectionHistoryEntry) {
498 if !entry.selections.is_empty() {
499 match self.mode {
500 SelectionHistoryMode::Normal => {
501 self.push_undo(entry);
502 self.redo_stack.clear();
503 }
504 SelectionHistoryMode::Undoing => self.push_redo(entry),
505 SelectionHistoryMode::Redoing => self.push_undo(entry),
506 }
507 }
508 }
509
510 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
511 if self
512 .undo_stack
513 .back()
514 .map_or(true, |e| e.selections != entry.selections)
515 {
516 self.undo_stack.push_back(entry);
517 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
518 self.undo_stack.pop_front();
519 }
520 }
521 }
522
523 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
524 if self
525 .redo_stack
526 .back()
527 .map_or(true, |e| e.selections != entry.selections)
528 {
529 self.redo_stack.push_back(entry);
530 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
531 self.redo_stack.pop_front();
532 }
533 }
534 }
535}
536
537#[derive(Clone, Debug)]
538struct AddSelectionsState {
539 above: bool,
540 stack: Vec<usize>,
541}
542
543#[derive(Clone)]
544struct SelectNextState {
545 query: AhoCorasick,
546 wordwise: bool,
547 done: bool,
548}
549
550impl std::fmt::Debug for SelectNextState {
551 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
552 f.debug_struct(std::any::type_name::<Self>())
553 .field("wordwise", &self.wordwise)
554 .field("done", &self.done)
555 .finish()
556 }
557}
558
559#[derive(Debug)]
560struct AutocloseRegion {
561 selection_id: usize,
562 range: Range<Anchor>,
563 pair: BracketPair,
564}
565
566#[derive(Debug)]
567struct SnippetState {
568 ranges: Vec<Vec<Range<Anchor>>>,
569 active_index: usize,
570}
571
572#[doc(hidden)]
573pub struct RenameState {
574 pub range: Range<Anchor>,
575 pub old_name: Arc<str>,
576 pub editor: View<Editor>,
577 block_id: BlockId,
578}
579
580struct InvalidationStack<T>(Vec<T>);
581
582enum ContextMenu {
583 Completions(CompletionsMenu),
584 CodeActions(CodeActionsMenu),
585}
586
587impl ContextMenu {
588 fn select_first(
589 &mut self,
590 project: Option<&Model<Project>>,
591 cx: &mut ViewContext<Editor>,
592 ) -> bool {
593 if self.visible() {
594 match self {
595 ContextMenu::Completions(menu) => menu.select_first(project, cx),
596 ContextMenu::CodeActions(menu) => menu.select_first(cx),
597 }
598 true
599 } else {
600 false
601 }
602 }
603
604 fn select_prev(
605 &mut self,
606 project: Option<&Model<Project>>,
607 cx: &mut ViewContext<Editor>,
608 ) -> bool {
609 if self.visible() {
610 match self {
611 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
612 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
613 }
614 true
615 } else {
616 false
617 }
618 }
619
620 fn select_next(
621 &mut self,
622 project: Option<&Model<Project>>,
623 cx: &mut ViewContext<Editor>,
624 ) -> bool {
625 if self.visible() {
626 match self {
627 ContextMenu::Completions(menu) => menu.select_next(project, cx),
628 ContextMenu::CodeActions(menu) => menu.select_next(cx),
629 }
630 true
631 } else {
632 false
633 }
634 }
635
636 fn select_last(
637 &mut self,
638 project: Option<&Model<Project>>,
639 cx: &mut ViewContext<Editor>,
640 ) -> bool {
641 if self.visible() {
642 match self {
643 ContextMenu::Completions(menu) => menu.select_last(project, cx),
644 ContextMenu::CodeActions(menu) => menu.select_last(cx),
645 }
646 true
647 } else {
648 false
649 }
650 }
651
652 fn visible(&self) -> bool {
653 match self {
654 ContextMenu::Completions(menu) => menu.visible(),
655 ContextMenu::CodeActions(menu) => menu.visible(),
656 }
657 }
658
659 fn render(
660 &self,
661 cursor_position: DisplayPoint,
662 style: &EditorStyle,
663 max_height: Pixels,
664 workspace: Option<WeakView<Workspace>>,
665 cx: &mut ViewContext<Editor>,
666 ) -> (DisplayPoint, AnyElement) {
667 match self {
668 ContextMenu::Completions(menu) => (
669 cursor_position,
670 menu.render(style, max_height, workspace, cx),
671 ),
672 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
673 }
674 }
675}
676
677#[derive(Clone)]
678struct CompletionsMenu {
679 id: CompletionId,
680 initial_position: Anchor,
681 buffer: Model<Buffer>,
682 completions: Arc<RwLock<Box<[Completion]>>>,
683 match_candidates: Arc<[StringMatchCandidate]>,
684 matches: Arc<[StringMatch]>,
685 selected_item: usize,
686 scroll_handle: UniformListScrollHandle,
687}
688
689impl CompletionsMenu {
690 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
691 self.selected_item = 0;
692 self.scroll_handle.scroll_to_item(self.selected_item);
693 self.attempt_resolve_selected_completion_documentation(project, cx);
694 cx.notify();
695 }
696
697 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
698 if self.selected_item > 0 {
699 self.selected_item -= 1;
700 } else {
701 self.selected_item = self.matches.len() - 1;
702 }
703 self.scroll_handle.scroll_to_item(self.selected_item);
704 self.attempt_resolve_selected_completion_documentation(project, cx);
705 cx.notify();
706 }
707
708 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
709 if self.selected_item + 1 < self.matches.len() {
710 self.selected_item += 1;
711 } else {
712 self.selected_item = 0;
713 }
714 self.scroll_handle.scroll_to_item(self.selected_item);
715 self.attempt_resolve_selected_completion_documentation(project, cx);
716 cx.notify();
717 }
718
719 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
720 self.selected_item = self.matches.len() - 1;
721 self.scroll_handle.scroll_to_item(self.selected_item);
722 self.attempt_resolve_selected_completion_documentation(project, cx);
723 cx.notify();
724 }
725
726 fn pre_resolve_completion_documentation(
727 &self,
728 editor: &Editor,
729 cx: &mut ViewContext<Editor>,
730 ) -> Option<Task<()>> {
731 let settings = EditorSettings::get_global(cx);
732 if !settings.show_completion_documentation {
733 return None;
734 }
735
736 let Some(provider) = editor.completion_provider.as_ref() else {
737 return None;
738 };
739
740 let resolve_task = provider.resolve_completions(
741 self.matches.iter().map(|m| m.candidate_id).collect(),
742 self.completions.clone(),
743 cx,
744 );
745
746 return Some(cx.spawn(move |this, mut cx| async move {
747 if let Some(true) = resolve_task.await.log_err() {
748 this.update(&mut cx, |_, cx| cx.notify()).ok();
749 }
750 }));
751 }
752
753 fn attempt_resolve_selected_completion_documentation(
754 &mut self,
755 project: Option<&Model<Project>>,
756 cx: &mut ViewContext<Editor>,
757 ) {
758 let settings = EditorSettings::get_global(cx);
759 if !settings.show_completion_documentation {
760 return;
761 }
762
763 let completion_index = self.matches[self.selected_item].candidate_id;
764 let Some(project) = project else {
765 return;
766 };
767
768 let resolve_task = project.update(cx, |project, cx| {
769 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
770 });
771 cx.spawn(move |this, mut cx| async move {
772 if let Some(true) = resolve_task.await.log_err() {
773 this.update(&mut cx, |_, cx| cx.notify()).ok();
774 }
775 })
776 .detach();
777 }
778
779 fn visible(&self) -> bool {
780 !self.matches.is_empty()
781 }
782
783 fn render(
784 &self,
785 style: &EditorStyle,
786 max_height: Pixels,
787 workspace: Option<WeakView<Workspace>>,
788 cx: &mut ViewContext<Editor>,
789 ) -> AnyElement {
790 let settings = EditorSettings::get_global(cx);
791 let show_completion_documentation = settings.show_completion_documentation;
792
793 let widest_completion_ix = self
794 .matches
795 .iter()
796 .enumerate()
797 .max_by_key(|(_, mat)| {
798 let completions = self.completions.read();
799 let completion = &completions[mat.candidate_id];
800 let documentation = &completion.documentation;
801
802 let mut len = completion.label.text.chars().count();
803 if let Some(Documentation::SingleLine(text)) = documentation {
804 if show_completion_documentation {
805 len += text.chars().count();
806 }
807 }
808
809 len
810 })
811 .map(|(ix, _)| ix);
812
813 let completions = self.completions.clone();
814 let matches = self.matches.clone();
815 let selected_item = self.selected_item;
816 let style = style.clone();
817
818 let multiline_docs = {
819 let mat = &self.matches[selected_item];
820 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
821 Some(Documentation::MultiLinePlainText(text)) => {
822 Some(div().child(SharedString::from(text.clone())))
823 }
824 Some(Documentation::MultiLineMarkdown(parsed)) => Some(div().child(
825 render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
826 )),
827 _ => None,
828 };
829 multiline_docs.map(|div| {
830 div.id("multiline_docs")
831 .max_h(max_height)
832 .flex_1()
833 .px_1p5()
834 .py_1()
835 .min_w(px(260.))
836 .max_w(px(640.))
837 .w(px(500.))
838 .overflow_y_scroll()
839 // Prevent a mouse down on documentation from being propagated to the editor,
840 // because that would move the cursor.
841 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
842 })
843 };
844
845 let list = uniform_list(
846 cx.view().clone(),
847 "completions",
848 matches.len(),
849 move |_editor, range, cx| {
850 let start_ix = range.start;
851 let completions_guard = completions.read();
852
853 matches[range]
854 .iter()
855 .enumerate()
856 .map(|(ix, mat)| {
857 let item_ix = start_ix + ix;
858 let candidate_id = mat.candidate_id;
859 let completion = &completions_guard[candidate_id];
860
861 let documentation = if show_completion_documentation {
862 &completion.documentation
863 } else {
864 &None
865 };
866
867 let highlights = gpui::combine_highlights(
868 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
869 styled_runs_for_code_label(&completion.label, &style.syntax).map(
870 |(range, mut highlight)| {
871 // Ignore font weight for syntax highlighting, as we'll use it
872 // for fuzzy matches.
873 highlight.font_weight = None;
874 (range, highlight)
875 },
876 ),
877 );
878 let completion_label = StyledText::new(completion.label.text.clone())
879 .with_highlights(&style.text, highlights);
880 let documentation_label =
881 if let Some(Documentation::SingleLine(text)) = documentation {
882 if text.trim().is_empty() {
883 None
884 } else {
885 Some(
886 h_flex().ml_4().child(
887 Label::new(text.clone())
888 .size(LabelSize::Small)
889 .color(Color::Muted),
890 ),
891 )
892 }
893 } else {
894 None
895 };
896
897 div().min_w(px(220.)).max_w(px(540.)).child(
898 ListItem::new(mat.candidate_id)
899 .inset(true)
900 .selected(item_ix == selected_item)
901 .on_click(cx.listener(move |editor, _event, cx| {
902 cx.stop_propagation();
903 editor
904 .confirm_completion(
905 &ConfirmCompletion {
906 item_ix: Some(item_ix),
907 },
908 cx,
909 )
910 .map(|task| task.detach_and_log_err(cx));
911 }))
912 .child(h_flex().overflow_hidden().child(completion_label))
913 .end_slot::<Div>(documentation_label),
914 )
915 })
916 .collect()
917 },
918 )
919 .max_h(max_height)
920 .track_scroll(self.scroll_handle.clone())
921 .with_width_from_item(widest_completion_ix);
922
923 Popover::new()
924 .child(list)
925 .when_some(multiline_docs, |popover, multiline_docs| {
926 popover.aside(multiline_docs)
927 })
928 .into_any_element()
929 }
930
931 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
932 let mut matches = if let Some(query) = query {
933 fuzzy::match_strings(
934 &self.match_candidates,
935 query,
936 query.chars().any(|c| c.is_uppercase()),
937 100,
938 &Default::default(),
939 executor,
940 )
941 .await
942 } else {
943 self.match_candidates
944 .iter()
945 .enumerate()
946 .map(|(candidate_id, candidate)| StringMatch {
947 candidate_id,
948 score: Default::default(),
949 positions: Default::default(),
950 string: candidate.string.clone(),
951 })
952 .collect()
953 };
954
955 // Remove all candidates where the query's start does not match the start of any word in the candidate
956 if let Some(query) = query {
957 if let Some(query_start) = query.chars().next() {
958 matches.retain(|string_match| {
959 split_words(&string_match.string).any(|word| {
960 // Check that the first codepoint of the word as lowercase matches the first
961 // codepoint of the query as lowercase
962 word.chars()
963 .flat_map(|codepoint| codepoint.to_lowercase())
964 .zip(query_start.to_lowercase())
965 .all(|(word_cp, query_cp)| word_cp == query_cp)
966 })
967 });
968 }
969 }
970
971 let completions = self.completions.read();
972 matches.sort_unstable_by_key(|mat| {
973 let completion = &completions[mat.candidate_id];
974 (
975 completion.lsp_completion.sort_text.as_ref(),
976 Reverse(OrderedFloat(mat.score)),
977 completion.sort_key(),
978 )
979 });
980
981 for mat in &mut matches {
982 let completion = &completions[mat.candidate_id];
983 mat.string = completion.label.text.clone();
984 for position in &mut mat.positions {
985 *position += completion.label.filter_range.start;
986 }
987 }
988 drop(completions);
989
990 self.matches = matches.into();
991 self.selected_item = 0;
992 }
993}
994
995#[derive(Clone)]
996struct CodeActionsMenu {
997 actions: Arc<[CodeAction]>,
998 buffer: Model<Buffer>,
999 selected_item: usize,
1000 scroll_handle: UniformListScrollHandle,
1001 deployed_from_indicator: bool,
1002}
1003
1004impl CodeActionsMenu {
1005 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1006 self.selected_item = 0;
1007 self.scroll_handle.scroll_to_item(self.selected_item);
1008 cx.notify()
1009 }
1010
1011 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1012 if self.selected_item > 0 {
1013 self.selected_item -= 1;
1014 } else {
1015 self.selected_item = self.actions.len() - 1;
1016 }
1017 self.scroll_handle.scroll_to_item(self.selected_item);
1018 cx.notify();
1019 }
1020
1021 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1022 if self.selected_item + 1 < self.actions.len() {
1023 self.selected_item += 1;
1024 } else {
1025 self.selected_item = 0;
1026 }
1027 self.scroll_handle.scroll_to_item(self.selected_item);
1028 cx.notify();
1029 }
1030
1031 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1032 self.selected_item = self.actions.len() - 1;
1033 self.scroll_handle.scroll_to_item(self.selected_item);
1034 cx.notify()
1035 }
1036
1037 fn visible(&self) -> bool {
1038 !self.actions.is_empty()
1039 }
1040
1041 fn render(
1042 &self,
1043 mut cursor_position: DisplayPoint,
1044 _style: &EditorStyle,
1045 max_height: Pixels,
1046 cx: &mut ViewContext<Editor>,
1047 ) -> (DisplayPoint, AnyElement) {
1048 let actions = self.actions.clone();
1049 let selected_item = self.selected_item;
1050
1051 let element = uniform_list(
1052 cx.view().clone(),
1053 "code_actions_menu",
1054 self.actions.len(),
1055 move |_this, range, cx| {
1056 actions[range.clone()]
1057 .iter()
1058 .enumerate()
1059 .map(|(ix, action)| {
1060 let item_ix = range.start + ix;
1061 let selected = selected_item == item_ix;
1062 let colors = cx.theme().colors();
1063 div()
1064 .px_2()
1065 .text_color(colors.text)
1066 .when(selected, |style| {
1067 style
1068 .bg(colors.element_active)
1069 .text_color(colors.text_accent)
1070 })
1071 .hover(|style| {
1072 style
1073 .bg(colors.element_hover)
1074 .text_color(colors.text_accent)
1075 })
1076 .on_mouse_down(
1077 MouseButton::Left,
1078 cx.listener(move |editor, _, cx| {
1079 cx.stop_propagation();
1080 editor
1081 .confirm_code_action(
1082 &ConfirmCodeAction {
1083 item_ix: Some(item_ix),
1084 },
1085 cx,
1086 )
1087 .map(|task| task.detach_and_log_err(cx));
1088 }),
1089 )
1090 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1091 .child(SharedString::from(action.lsp_action.title.clone()))
1092 })
1093 .collect()
1094 },
1095 )
1096 .elevation_1(cx)
1097 .px_2()
1098 .py_1()
1099 .max_h(max_height)
1100 .track_scroll(self.scroll_handle.clone())
1101 .with_width_from_item(
1102 self.actions
1103 .iter()
1104 .enumerate()
1105 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1106 .map(|(ix, _)| ix),
1107 )
1108 .into_any_element();
1109
1110 if self.deployed_from_indicator {
1111 *cursor_position.column_mut() = 0;
1112 }
1113
1114 (cursor_position, element)
1115 }
1116}
1117
1118pub(crate) struct CopilotState {
1119 excerpt_id: Option<ExcerptId>,
1120 pending_refresh: Task<Option<()>>,
1121 pending_cycling_refresh: Task<Option<()>>,
1122 cycled: bool,
1123 completions: Vec<copilot::Completion>,
1124 active_completion_index: usize,
1125 suggestion: Option<Inlay>,
1126}
1127
1128impl Default for CopilotState {
1129 fn default() -> Self {
1130 Self {
1131 excerpt_id: None,
1132 pending_cycling_refresh: Task::ready(Some(())),
1133 pending_refresh: Task::ready(Some(())),
1134 completions: Default::default(),
1135 active_completion_index: 0,
1136 cycled: false,
1137 suggestion: None,
1138 }
1139 }
1140}
1141
1142impl CopilotState {
1143 fn active_completion(&self) -> Option<&copilot::Completion> {
1144 self.completions.get(self.active_completion_index)
1145 }
1146
1147 fn text_for_active_completion(
1148 &self,
1149 cursor: Anchor,
1150 buffer: &MultiBufferSnapshot,
1151 ) -> Option<&str> {
1152 use language::ToOffset as _;
1153
1154 let completion = self.active_completion()?;
1155 let excerpt_id = self.excerpt_id?;
1156 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1157 if excerpt_id != cursor.excerpt_id
1158 || !completion.range.start.is_valid(completion_buffer)
1159 || !completion.range.end.is_valid(completion_buffer)
1160 {
1161 return None;
1162 }
1163
1164 let mut completion_range = completion.range.to_offset(&completion_buffer);
1165 let prefix_len = Self::common_prefix(
1166 completion_buffer.chars_for_range(completion_range.clone()),
1167 completion.text.chars(),
1168 );
1169 completion_range.start += prefix_len;
1170 let suffix_len = Self::common_prefix(
1171 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1172 completion.text[prefix_len..].chars().rev(),
1173 );
1174 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1175
1176 if completion_range.is_empty()
1177 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1178 {
1179 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1180 } else {
1181 None
1182 }
1183 }
1184
1185 fn cycle_completions(&mut self, direction: Direction) {
1186 match direction {
1187 Direction::Prev => {
1188 self.active_completion_index = if self.active_completion_index == 0 {
1189 self.completions.len().saturating_sub(1)
1190 } else {
1191 self.active_completion_index - 1
1192 };
1193 }
1194 Direction::Next => {
1195 if self.completions.len() == 0 {
1196 self.active_completion_index = 0
1197 } else {
1198 self.active_completion_index =
1199 (self.active_completion_index + 1) % self.completions.len();
1200 }
1201 }
1202 }
1203 }
1204
1205 fn push_completion(&mut self, new_completion: copilot::Completion) {
1206 for completion in &self.completions {
1207 if completion.text == new_completion.text && completion.range == new_completion.range {
1208 return;
1209 }
1210 }
1211 self.completions.push(new_completion);
1212 }
1213
1214 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1215 a.zip(b)
1216 .take_while(|(a, b)| a == b)
1217 .map(|(a, _)| a.len_utf8())
1218 .sum()
1219 }
1220}
1221
1222#[derive(Debug)]
1223struct ActiveDiagnosticGroup {
1224 primary_range: Range<Anchor>,
1225 primary_message: String,
1226 blocks: HashMap<BlockId, Diagnostic>,
1227 is_valid: bool,
1228}
1229
1230#[derive(Serialize, Deserialize)]
1231pub struct ClipboardSelection {
1232 pub len: usize,
1233 pub is_entire_line: bool,
1234 pub first_line_indent: u32,
1235}
1236
1237#[derive(Debug)]
1238pub(crate) struct NavigationData {
1239 cursor_anchor: Anchor,
1240 cursor_position: Point,
1241 scroll_anchor: ScrollAnchor,
1242 scroll_top_row: u32,
1243}
1244
1245enum GotoDefinitionKind {
1246 Symbol,
1247 Type,
1248}
1249
1250#[derive(Debug, Clone)]
1251enum InlayHintRefreshReason {
1252 Toggle(bool),
1253 SettingsChange(InlayHintSettings),
1254 NewLinesShown,
1255 BufferEdited(HashSet<Arc<Language>>),
1256 RefreshRequested,
1257 ExcerptsRemoved(Vec<ExcerptId>),
1258}
1259impl InlayHintRefreshReason {
1260 fn description(&self) -> &'static str {
1261 match self {
1262 Self::Toggle(_) => "toggle",
1263 Self::SettingsChange(_) => "settings change",
1264 Self::NewLinesShown => "new lines shown",
1265 Self::BufferEdited(_) => "buffer edited",
1266 Self::RefreshRequested => "refresh requested",
1267 Self::ExcerptsRemoved(_) => "excerpts removed",
1268 }
1269 }
1270}
1271
1272impl Editor {
1273 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1274 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1275 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1276 Self::new(EditorMode::SingleLine, buffer, None, cx)
1277 }
1278
1279 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1280 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1281 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1282 Self::new(EditorMode::Full, buffer, None, cx)
1283 }
1284
1285 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1286 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1287 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1288 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1289 }
1290
1291 pub fn for_buffer(
1292 buffer: Model<Buffer>,
1293 project: Option<Model<Project>>,
1294 cx: &mut ViewContext<Self>,
1295 ) -> Self {
1296 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1297 Self::new(EditorMode::Full, buffer, project, cx)
1298 }
1299
1300 pub fn for_multibuffer(
1301 buffer: Model<MultiBuffer>,
1302 project: Option<Model<Project>>,
1303 cx: &mut ViewContext<Self>,
1304 ) -> Self {
1305 Self::new(EditorMode::Full, buffer, project, cx)
1306 }
1307
1308 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1309 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1310 self.display_map.update(cx, |display_map, cx| {
1311 let snapshot = display_map.snapshot(cx);
1312 clone.display_map.update(cx, |display_map, cx| {
1313 display_map.set_state(&snapshot, cx);
1314 });
1315 });
1316 clone.selections.clone_state(&self.selections);
1317 clone.scroll_manager.clone_state(&self.scroll_manager);
1318 clone.searchable = self.searchable;
1319 clone
1320 }
1321
1322 fn new(
1323 mode: EditorMode,
1324 buffer: Model<MultiBuffer>,
1325 project: Option<Model<Project>>,
1326 cx: &mut ViewContext<Self>,
1327 ) -> Self {
1328 let style = cx.text_style();
1329 let font_size = style.font_size.to_pixels(cx.rem_size());
1330 let display_map = cx.new_model(|cx| {
1331 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1332 });
1333
1334 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1335
1336 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1337
1338 let soft_wrap_mode_override =
1339 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1340
1341 let mut project_subscriptions = Vec::new();
1342 if mode == EditorMode::Full {
1343 if let Some(project) = project.as_ref() {
1344 if buffer.read(cx).is_singleton() {
1345 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1346 cx.emit(EditorEvent::TitleChanged);
1347 }));
1348 }
1349 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1350 if let project::Event::RefreshInlayHints = event {
1351 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1352 };
1353 }));
1354 }
1355 }
1356
1357 let inlay_hint_settings = inlay_hint_settings(
1358 selections.newest_anchor().head(),
1359 &buffer.read(cx).snapshot(cx),
1360 cx,
1361 );
1362
1363 let focus_handle = cx.focus_handle();
1364 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1365 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1366
1367 let mut this = Self {
1368 handle: cx.view().downgrade(),
1369 focus_handle,
1370 buffer: buffer.clone(),
1371 display_map: display_map.clone(),
1372 selections,
1373 scroll_manager: ScrollManager::new(),
1374 columnar_selection_tail: None,
1375 add_selections_state: None,
1376 select_next_state: None,
1377 select_prev_state: None,
1378 selection_history: Default::default(),
1379 autoclose_regions: Default::default(),
1380 snippet_stack: Default::default(),
1381 select_larger_syntax_node_stack: Vec::new(),
1382 ime_transaction: Default::default(),
1383 active_diagnostics: None,
1384 soft_wrap_mode_override,
1385 completion_provider: project.clone().map(|project| Box::new(project) as _),
1386 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1387 project,
1388 blink_manager: blink_manager.clone(),
1389 show_local_selections: true,
1390 mode,
1391 show_gutter: mode == EditorMode::Full,
1392 show_wrap_guides: None,
1393 placeholder_text: None,
1394 highlighted_rows: None,
1395 background_highlights: Default::default(),
1396 inlay_background_highlights: Default::default(),
1397 nav_history: None,
1398 context_menu: RwLock::new(None),
1399 mouse_context_menu: None,
1400 completion_tasks: Default::default(),
1401 next_completion_id: 0,
1402 next_inlay_id: 0,
1403 available_code_actions: Default::default(),
1404 code_actions_task: Default::default(),
1405 document_highlights_task: Default::default(),
1406 pending_rename: Default::default(),
1407 searchable: true,
1408 cursor_shape: Default::default(),
1409 autoindent_mode: Some(AutoindentMode::EachLine),
1410 collapse_matches: false,
1411 workspace: None,
1412 keymap_context_layers: Default::default(),
1413 input_enabled: true,
1414 read_only: false,
1415 use_autoclose: true,
1416 leader_peer_id: None,
1417 remote_id: None,
1418 hover_state: Default::default(),
1419 link_go_to_definition_state: Default::default(),
1420 copilot_state: Default::default(),
1421 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1422 gutter_hovered: false,
1423 pixel_position_of_newest_cursor: None,
1424 gutter_width: Default::default(),
1425 style: None,
1426 show_cursor_names: false,
1427 hovered_cursor: Default::default(),
1428 editor_actions: Default::default(),
1429 show_copilot_suggestions: mode == EditorMode::Full,
1430 _subscriptions: vec![
1431 cx.observe(&buffer, Self::on_buffer_changed),
1432 cx.subscribe(&buffer, Self::on_buffer_event),
1433 cx.observe(&display_map, Self::on_display_map_changed),
1434 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1435 cx.observe_global::<SettingsStore>(Self::settings_changed),
1436 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1437 cx.observe_window_activation(|editor, cx| {
1438 let active = cx.is_window_active();
1439 editor.blink_manager.update(cx, |blink_manager, cx| {
1440 if active {
1441 blink_manager.enable(cx);
1442 } else {
1443 blink_manager.show_cursor(cx);
1444 blink_manager.disable(cx);
1445 }
1446 });
1447 }),
1448 ],
1449 };
1450
1451 this._subscriptions.extend(project_subscriptions);
1452
1453 this.end_selection(cx);
1454 this.scroll_manager.show_scrollbar(cx);
1455
1456 if mode == EditorMode::Full {
1457 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1458 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1459 }
1460
1461 this.report_editor_event("open", None, cx);
1462 this
1463 }
1464
1465 fn key_context(&self, cx: &AppContext) -> KeyContext {
1466 let mut key_context = KeyContext::default();
1467 key_context.add("Editor");
1468 let mode = match self.mode {
1469 EditorMode::SingleLine => "single_line",
1470 EditorMode::AutoHeight { .. } => "auto_height",
1471 EditorMode::Full => "full",
1472 };
1473 key_context.set("mode", mode);
1474 if self.pending_rename.is_some() {
1475 key_context.add("renaming");
1476 }
1477 if self.context_menu_visible() {
1478 match self.context_menu.read().as_ref() {
1479 Some(ContextMenu::Completions(_)) => {
1480 key_context.add("menu");
1481 key_context.add("showing_completions")
1482 }
1483 Some(ContextMenu::CodeActions(_)) => {
1484 key_context.add("menu");
1485 key_context.add("showing_code_actions")
1486 }
1487 None => {}
1488 }
1489 }
1490
1491 for layer in self.keymap_context_layers.values() {
1492 key_context.extend(layer);
1493 }
1494
1495 if let Some(extension) = self
1496 .buffer
1497 .read(cx)
1498 .as_singleton()
1499 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1500 {
1501 key_context.set("extension", extension.to_string());
1502 }
1503
1504 key_context
1505 }
1506
1507 pub fn new_file(
1508 workspace: &mut Workspace,
1509 _: &workspace::NewFile,
1510 cx: &mut ViewContext<Workspace>,
1511 ) {
1512 let project = workspace.project().clone();
1513 if project.read(cx).is_remote() {
1514 cx.propagate();
1515 } else if let Some(buffer) = project
1516 .update(cx, |project, cx| project.create_buffer("", None, cx))
1517 .log_err()
1518 {
1519 workspace.add_item(
1520 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1521 cx,
1522 );
1523 }
1524 }
1525
1526 pub fn new_file_in_direction(
1527 workspace: &mut Workspace,
1528 action: &workspace::NewFileInDirection,
1529 cx: &mut ViewContext<Workspace>,
1530 ) {
1531 let project = workspace.project().clone();
1532 if project.read(cx).is_remote() {
1533 cx.propagate();
1534 } else if let Some(buffer) = project
1535 .update(cx, |project, cx| project.create_buffer("", None, cx))
1536 .log_err()
1537 {
1538 workspace.split_item(
1539 action.0,
1540 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1541 cx,
1542 );
1543 }
1544 }
1545
1546 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1547 self.buffer.read(cx).replica_id()
1548 }
1549
1550 pub fn leader_peer_id(&self) -> Option<PeerId> {
1551 self.leader_peer_id
1552 }
1553
1554 pub fn buffer(&self) -> &Model<MultiBuffer> {
1555 &self.buffer
1556 }
1557
1558 pub fn workspace(&self) -> Option<View<Workspace>> {
1559 self.workspace.as_ref()?.0.upgrade()
1560 }
1561
1562 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1563 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1564 }
1565
1566 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1567 self.buffer().read(cx).title(cx)
1568 }
1569
1570 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1571 EditorSnapshot {
1572 mode: self.mode,
1573 show_gutter: self.show_gutter,
1574 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1575 scroll_anchor: self.scroll_manager.anchor(),
1576 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1577 placeholder_text: self.placeholder_text.clone(),
1578 is_focused: self.focus_handle.is_focused(cx),
1579 }
1580 }
1581
1582 pub fn language_at<'a, T: ToOffset>(
1583 &self,
1584 point: T,
1585 cx: &'a AppContext,
1586 ) -> Option<Arc<Language>> {
1587 self.buffer.read(cx).language_at(point, cx)
1588 }
1589
1590 pub fn file_at<'a, T: ToOffset>(
1591 &self,
1592 point: T,
1593 cx: &'a AppContext,
1594 ) -> Option<Arc<dyn language::File>> {
1595 self.buffer.read(cx).read(cx).file_at(point).cloned()
1596 }
1597
1598 pub fn active_excerpt(
1599 &self,
1600 cx: &AppContext,
1601 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1602 self.buffer
1603 .read(cx)
1604 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1605 }
1606
1607 pub fn mode(&self) -> EditorMode {
1608 self.mode
1609 }
1610
1611 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1612 self.collaboration_hub.as_deref()
1613 }
1614
1615 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1616 self.collaboration_hub = Some(hub);
1617 }
1618
1619 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1620 self.completion_provider = Some(hub);
1621 }
1622
1623 pub fn placeholder_text(&self) -> Option<&str> {
1624 self.placeholder_text.as_deref()
1625 }
1626
1627 pub fn set_placeholder_text(
1628 &mut self,
1629 placeholder_text: impl Into<Arc<str>>,
1630 cx: &mut ViewContext<Self>,
1631 ) {
1632 let placeholder_text = Some(placeholder_text.into());
1633 if self.placeholder_text != placeholder_text {
1634 self.placeholder_text = placeholder_text;
1635 cx.notify();
1636 }
1637 }
1638
1639 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1640 self.cursor_shape = cursor_shape;
1641 cx.notify();
1642 }
1643
1644 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1645 self.collapse_matches = collapse_matches;
1646 }
1647
1648 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1649 if self.collapse_matches {
1650 return range.start..range.start;
1651 }
1652 range.clone()
1653 }
1654
1655 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1656 if self.display_map.read(cx).clip_at_line_ends != clip {
1657 self.display_map
1658 .update(cx, |map, _| map.clip_at_line_ends = clip);
1659 }
1660 }
1661
1662 pub fn set_keymap_context_layer<Tag: 'static>(
1663 &mut self,
1664 context: KeyContext,
1665 cx: &mut ViewContext<Self>,
1666 ) {
1667 self.keymap_context_layers
1668 .insert(TypeId::of::<Tag>(), context);
1669 cx.notify();
1670 }
1671
1672 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1673 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1674 cx.notify();
1675 }
1676
1677 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1678 self.input_enabled = input_enabled;
1679 }
1680
1681 pub fn set_autoindent(&mut self, autoindent: bool) {
1682 if autoindent {
1683 self.autoindent_mode = Some(AutoindentMode::EachLine);
1684 } else {
1685 self.autoindent_mode = None;
1686 }
1687 }
1688
1689 pub fn read_only(&self, cx: &AppContext) -> bool {
1690 self.read_only || self.buffer.read(cx).read_only()
1691 }
1692
1693 pub fn set_read_only(&mut self, read_only: bool) {
1694 self.read_only = read_only;
1695 }
1696
1697 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1698 self.use_autoclose = autoclose;
1699 }
1700
1701 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1702 self.show_copilot_suggestions = show_copilot_suggestions;
1703 }
1704
1705 fn selections_did_change(
1706 &mut self,
1707 local: bool,
1708 old_cursor_position: &Anchor,
1709 cx: &mut ViewContext<Self>,
1710 ) {
1711 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1712 self.buffer.update(cx, |buffer, cx| {
1713 buffer.set_active_selections(
1714 &self.selections.disjoint_anchors(),
1715 self.selections.line_mode,
1716 self.cursor_shape,
1717 cx,
1718 )
1719 });
1720 }
1721
1722 let display_map = self
1723 .display_map
1724 .update(cx, |display_map, cx| display_map.snapshot(cx));
1725 let buffer = &display_map.buffer_snapshot;
1726 self.add_selections_state = None;
1727 self.select_next_state = None;
1728 self.select_prev_state = None;
1729 self.select_larger_syntax_node_stack.clear();
1730 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1731 self.snippet_stack
1732 .invalidate(&self.selections.disjoint_anchors(), buffer);
1733 self.take_rename(false, cx);
1734
1735 let new_cursor_position = self.selections.newest_anchor().head();
1736
1737 self.push_to_nav_history(
1738 old_cursor_position.clone(),
1739 Some(new_cursor_position.to_point(buffer)),
1740 cx,
1741 );
1742
1743 if local {
1744 let new_cursor_position = self.selections.newest_anchor().head();
1745 let mut context_menu = self.context_menu.write();
1746 let completion_menu = match context_menu.as_ref() {
1747 Some(ContextMenu::Completions(menu)) => Some(menu),
1748
1749 _ => {
1750 *context_menu = None;
1751 None
1752 }
1753 };
1754
1755 if let Some(completion_menu) = completion_menu {
1756 let cursor_position = new_cursor_position.to_offset(buffer);
1757 let (word_range, kind) =
1758 buffer.surrounding_word(completion_menu.initial_position.clone());
1759 if kind == Some(CharKind::Word)
1760 && word_range.to_inclusive().contains(&cursor_position)
1761 {
1762 let mut completion_menu = completion_menu.clone();
1763 drop(context_menu);
1764
1765 let query = Self::completion_query(buffer, cursor_position);
1766 cx.spawn(move |this, mut cx| async move {
1767 completion_menu
1768 .filter(query.as_deref(), cx.background_executor().clone())
1769 .await;
1770
1771 this.update(&mut cx, |this, cx| {
1772 let mut context_menu = this.context_menu.write();
1773 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1774 return;
1775 };
1776
1777 if menu.id > completion_menu.id {
1778 return;
1779 }
1780
1781 *context_menu = Some(ContextMenu::Completions(completion_menu));
1782 drop(context_menu);
1783 cx.notify();
1784 })
1785 })
1786 .detach();
1787
1788 self.show_completions(&ShowCompletions, cx);
1789 } else {
1790 drop(context_menu);
1791 self.hide_context_menu(cx);
1792 }
1793 } else {
1794 drop(context_menu);
1795 }
1796
1797 hide_hover(self, cx);
1798
1799 if old_cursor_position.to_display_point(&display_map).row()
1800 != new_cursor_position.to_display_point(&display_map).row()
1801 {
1802 self.available_code_actions.take();
1803 }
1804 self.refresh_code_actions(cx);
1805 self.refresh_document_highlights(cx);
1806 refresh_matching_bracket_highlights(self, cx);
1807 self.discard_copilot_suggestion(cx);
1808 }
1809
1810 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1811 cx.emit(EditorEvent::SelectionsChanged { local });
1812
1813 if self.selections.disjoint_anchors().len() == 1 {
1814 cx.emit(SearchEvent::ActiveMatchChanged)
1815 }
1816
1817 cx.notify();
1818 }
1819
1820 pub fn change_selections<R>(
1821 &mut self,
1822 autoscroll: Option<Autoscroll>,
1823 cx: &mut ViewContext<Self>,
1824 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1825 ) -> R {
1826 let old_cursor_position = self.selections.newest_anchor().head();
1827 self.push_to_selection_history();
1828
1829 let (changed, result) = self.selections.change_with(cx, change);
1830
1831 if changed {
1832 if let Some(autoscroll) = autoscroll {
1833 self.request_autoscroll(autoscroll, cx);
1834 }
1835 self.selections_did_change(true, &old_cursor_position, cx);
1836 }
1837
1838 result
1839 }
1840
1841 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1842 where
1843 I: IntoIterator<Item = (Range<S>, T)>,
1844 S: ToOffset,
1845 T: Into<Arc<str>>,
1846 {
1847 if self.read_only(cx) {
1848 return;
1849 }
1850
1851 self.buffer
1852 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1853 }
1854
1855 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1856 where
1857 I: IntoIterator<Item = (Range<S>, T)>,
1858 S: ToOffset,
1859 T: Into<Arc<str>>,
1860 {
1861 if self.read_only(cx) {
1862 return;
1863 }
1864
1865 self.buffer.update(cx, |buffer, cx| {
1866 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1867 });
1868 }
1869
1870 pub fn edit_with_block_indent<I, S, T>(
1871 &mut self,
1872 edits: I,
1873 original_indent_columns: Vec<u32>,
1874 cx: &mut ViewContext<Self>,
1875 ) where
1876 I: IntoIterator<Item = (Range<S>, T)>,
1877 S: ToOffset,
1878 T: Into<Arc<str>>,
1879 {
1880 if self.read_only(cx) {
1881 return;
1882 }
1883
1884 self.buffer.update(cx, |buffer, cx| {
1885 buffer.edit(
1886 edits,
1887 Some(AutoindentMode::Block {
1888 original_indent_columns,
1889 }),
1890 cx,
1891 )
1892 });
1893 }
1894
1895 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1896 self.hide_context_menu(cx);
1897
1898 match phase {
1899 SelectPhase::Begin {
1900 position,
1901 add,
1902 click_count,
1903 } => self.begin_selection(position, add, click_count, cx),
1904 SelectPhase::BeginColumnar {
1905 position,
1906 goal_column,
1907 } => self.begin_columnar_selection(position, goal_column, cx),
1908 SelectPhase::Extend {
1909 position,
1910 click_count,
1911 } => self.extend_selection(position, click_count, cx),
1912 SelectPhase::Update {
1913 position,
1914 goal_column,
1915 scroll_position,
1916 } => self.update_selection(position, goal_column, scroll_position, cx),
1917 SelectPhase::End => self.end_selection(cx),
1918 }
1919 }
1920
1921 fn extend_selection(
1922 &mut self,
1923 position: DisplayPoint,
1924 click_count: usize,
1925 cx: &mut ViewContext<Self>,
1926 ) {
1927 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1928 let tail = self.selections.newest::<usize>(cx).tail();
1929 self.begin_selection(position, false, click_count, cx);
1930
1931 let position = position.to_offset(&display_map, Bias::Left);
1932 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1933
1934 let mut pending_selection = self
1935 .selections
1936 .pending_anchor()
1937 .expect("extend_selection not called with pending selection");
1938 if position >= tail {
1939 pending_selection.start = tail_anchor;
1940 } else {
1941 pending_selection.end = tail_anchor;
1942 pending_selection.reversed = true;
1943 }
1944
1945 let mut pending_mode = self.selections.pending_mode().unwrap();
1946 match &mut pending_mode {
1947 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
1948 _ => {}
1949 }
1950
1951 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
1952 s.set_pending(pending_selection, pending_mode)
1953 });
1954 }
1955
1956 fn begin_selection(
1957 &mut self,
1958 position: DisplayPoint,
1959 add: bool,
1960 click_count: usize,
1961 cx: &mut ViewContext<Self>,
1962 ) {
1963 if !self.focus_handle.is_focused(cx) {
1964 cx.focus(&self.focus_handle);
1965 }
1966
1967 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1968 let buffer = &display_map.buffer_snapshot;
1969 let newest_selection = self.selections.newest_anchor().clone();
1970 let position = display_map.clip_point(position, Bias::Left);
1971
1972 let start;
1973 let end;
1974 let mode;
1975 let auto_scroll;
1976 match click_count {
1977 1 => {
1978 start = buffer.anchor_before(position.to_point(&display_map));
1979 end = start.clone();
1980 mode = SelectMode::Character;
1981 auto_scroll = true;
1982 }
1983 2 => {
1984 let range = movement::surrounding_word(&display_map, position);
1985 start = buffer.anchor_before(range.start.to_point(&display_map));
1986 end = buffer.anchor_before(range.end.to_point(&display_map));
1987 mode = SelectMode::Word(start.clone()..end.clone());
1988 auto_scroll = true;
1989 }
1990 3 => {
1991 let position = display_map
1992 .clip_point(position, Bias::Left)
1993 .to_point(&display_map);
1994 let line_start = display_map.prev_line_boundary(position).0;
1995 let next_line_start = buffer.clip_point(
1996 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1997 Bias::Left,
1998 );
1999 start = buffer.anchor_before(line_start);
2000 end = buffer.anchor_before(next_line_start);
2001 mode = SelectMode::Line(start.clone()..end.clone());
2002 auto_scroll = true;
2003 }
2004 _ => {
2005 start = buffer.anchor_before(0);
2006 end = buffer.anchor_before(buffer.len());
2007 mode = SelectMode::All;
2008 auto_scroll = false;
2009 }
2010 }
2011
2012 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2013 if !add {
2014 s.clear_disjoint();
2015 } else if click_count > 1 {
2016 s.delete(newest_selection.id)
2017 }
2018
2019 s.set_pending_anchor_range(start..end, mode);
2020 });
2021 }
2022
2023 fn begin_columnar_selection(
2024 &mut self,
2025 position: DisplayPoint,
2026 goal_column: u32,
2027 cx: &mut ViewContext<Self>,
2028 ) {
2029 if !self.focus_handle.is_focused(cx) {
2030 cx.focus(&self.focus_handle);
2031 }
2032
2033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2034 let tail = self.selections.newest::<Point>(cx).tail();
2035 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2036
2037 self.select_columns(
2038 tail.to_display_point(&display_map),
2039 position,
2040 goal_column,
2041 &display_map,
2042 cx,
2043 );
2044 }
2045
2046 fn update_selection(
2047 &mut self,
2048 position: DisplayPoint,
2049 goal_column: u32,
2050 scroll_position: gpui::Point<f32>,
2051 cx: &mut ViewContext<Self>,
2052 ) {
2053 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2054
2055 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2056 let tail = tail.to_display_point(&display_map);
2057 self.select_columns(tail, position, goal_column, &display_map, cx);
2058 } else if let Some(mut pending) = self.selections.pending_anchor() {
2059 let buffer = self.buffer.read(cx).snapshot(cx);
2060 let head;
2061 let tail;
2062 let mode = self.selections.pending_mode().unwrap();
2063 match &mode {
2064 SelectMode::Character => {
2065 head = position.to_point(&display_map);
2066 tail = pending.tail().to_point(&buffer);
2067 }
2068 SelectMode::Word(original_range) => {
2069 let original_display_range = original_range.start.to_display_point(&display_map)
2070 ..original_range.end.to_display_point(&display_map);
2071 let original_buffer_range = original_display_range.start.to_point(&display_map)
2072 ..original_display_range.end.to_point(&display_map);
2073 if movement::is_inside_word(&display_map, position)
2074 || original_display_range.contains(&position)
2075 {
2076 let word_range = movement::surrounding_word(&display_map, position);
2077 if word_range.start < original_display_range.start {
2078 head = word_range.start.to_point(&display_map);
2079 } else {
2080 head = word_range.end.to_point(&display_map);
2081 }
2082 } else {
2083 head = position.to_point(&display_map);
2084 }
2085
2086 if head <= original_buffer_range.start {
2087 tail = original_buffer_range.end;
2088 } else {
2089 tail = original_buffer_range.start;
2090 }
2091 }
2092 SelectMode::Line(original_range) => {
2093 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2094
2095 let position = display_map
2096 .clip_point(position, Bias::Left)
2097 .to_point(&display_map);
2098 let line_start = display_map.prev_line_boundary(position).0;
2099 let next_line_start = buffer.clip_point(
2100 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2101 Bias::Left,
2102 );
2103
2104 if line_start < original_range.start {
2105 head = line_start
2106 } else {
2107 head = next_line_start
2108 }
2109
2110 if head <= original_range.start {
2111 tail = original_range.end;
2112 } else {
2113 tail = original_range.start;
2114 }
2115 }
2116 SelectMode::All => {
2117 return;
2118 }
2119 };
2120
2121 if head < tail {
2122 pending.start = buffer.anchor_before(head);
2123 pending.end = buffer.anchor_before(tail);
2124 pending.reversed = true;
2125 } else {
2126 pending.start = buffer.anchor_before(tail);
2127 pending.end = buffer.anchor_before(head);
2128 pending.reversed = false;
2129 }
2130
2131 self.change_selections(None, cx, |s| {
2132 s.set_pending(pending, mode);
2133 });
2134 } else {
2135 log::error!("update_selection dispatched with no pending selection");
2136 return;
2137 }
2138
2139 self.set_scroll_position(scroll_position, cx);
2140 cx.notify();
2141 }
2142
2143 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2144 self.columnar_selection_tail.take();
2145 if self.selections.pending_anchor().is_some() {
2146 let selections = self.selections.all::<usize>(cx);
2147 self.change_selections(None, cx, |s| {
2148 s.select(selections);
2149 s.clear_pending();
2150 });
2151 }
2152 }
2153
2154 fn select_columns(
2155 &mut self,
2156 tail: DisplayPoint,
2157 head: DisplayPoint,
2158 goal_column: u32,
2159 display_map: &DisplaySnapshot,
2160 cx: &mut ViewContext<Self>,
2161 ) {
2162 let start_row = cmp::min(tail.row(), head.row());
2163 let end_row = cmp::max(tail.row(), head.row());
2164 let start_column = cmp::min(tail.column(), goal_column);
2165 let end_column = cmp::max(tail.column(), goal_column);
2166 let reversed = start_column < tail.column();
2167
2168 let selection_ranges = (start_row..=end_row)
2169 .filter_map(|row| {
2170 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2171 let start = display_map
2172 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2173 .to_point(display_map);
2174 let end = display_map
2175 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2176 .to_point(display_map);
2177 if reversed {
2178 Some(end..start)
2179 } else {
2180 Some(start..end)
2181 }
2182 } else {
2183 None
2184 }
2185 })
2186 .collect::<Vec<_>>();
2187
2188 self.change_selections(None, cx, |s| {
2189 s.select_ranges(selection_ranges);
2190 });
2191 cx.notify();
2192 }
2193
2194 pub fn has_pending_nonempty_selection(&self) -> bool {
2195 let pending_nonempty_selection = match self.selections.pending_anchor() {
2196 Some(Selection { start, end, .. }) => start != end,
2197 None => false,
2198 };
2199 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2200 }
2201
2202 pub fn has_pending_selection(&self) -> bool {
2203 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2204 }
2205
2206 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2207 if self.take_rename(false, cx).is_some() {
2208 return;
2209 }
2210
2211 if hide_hover(self, cx) {
2212 return;
2213 }
2214
2215 if self.hide_context_menu(cx).is_some() {
2216 return;
2217 }
2218
2219 if self.discard_copilot_suggestion(cx) {
2220 return;
2221 }
2222
2223 if self.snippet_stack.pop().is_some() {
2224 return;
2225 }
2226
2227 if self.mode == EditorMode::Full {
2228 if self.active_diagnostics.is_some() {
2229 self.dismiss_diagnostics(cx);
2230 return;
2231 }
2232
2233 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2234 return;
2235 }
2236 }
2237
2238 cx.propagate();
2239 }
2240
2241 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2242 let text: Arc<str> = text.into();
2243
2244 if self.read_only(cx) {
2245 return;
2246 }
2247
2248 let selections = self.selections.all_adjusted(cx);
2249 let mut brace_inserted = false;
2250 let mut edits = Vec::new();
2251 let mut new_selections = Vec::with_capacity(selections.len());
2252 let mut new_autoclose_regions = Vec::new();
2253 let snapshot = self.buffer.read(cx).read(cx);
2254
2255 for (selection, autoclose_region) in
2256 self.selections_with_autoclose_regions(selections, &snapshot)
2257 {
2258 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2259 // Determine if the inserted text matches the opening or closing
2260 // bracket of any of this language's bracket pairs.
2261 let mut bracket_pair = None;
2262 let mut is_bracket_pair_start = false;
2263 if !text.is_empty() {
2264 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2265 // and they are removing the character that triggered IME popup.
2266 for (pair, enabled) in scope.brackets() {
2267 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2268 bracket_pair = Some(pair.clone());
2269 is_bracket_pair_start = true;
2270 break;
2271 } else if pair.end.as_str() == text.as_ref() {
2272 bracket_pair = Some(pair.clone());
2273 break;
2274 }
2275 }
2276 }
2277
2278 if let Some(bracket_pair) = bracket_pair {
2279 if selection.is_empty() {
2280 if is_bracket_pair_start {
2281 let prefix_len = bracket_pair.start.len() - text.len();
2282
2283 // If the inserted text is a suffix of an opening bracket and the
2284 // selection is preceded by the rest of the opening bracket, then
2285 // insert the closing bracket.
2286 let following_text_allows_autoclose = snapshot
2287 .chars_at(selection.start)
2288 .next()
2289 .map_or(true, |c| scope.should_autoclose_before(c));
2290 let preceding_text_matches_prefix = prefix_len == 0
2291 || (selection.start.column >= (prefix_len as u32)
2292 && snapshot.contains_str_at(
2293 Point::new(
2294 selection.start.row,
2295 selection.start.column - (prefix_len as u32),
2296 ),
2297 &bracket_pair.start[..prefix_len],
2298 ));
2299 let autoclose = self.use_autoclose
2300 && snapshot.settings_at(selection.start, cx).use_autoclose;
2301 if autoclose
2302 && following_text_allows_autoclose
2303 && preceding_text_matches_prefix
2304 {
2305 let anchor = snapshot.anchor_before(selection.end);
2306 new_selections.push((selection.map(|_| anchor), text.len()));
2307 new_autoclose_regions.push((
2308 anchor,
2309 text.len(),
2310 selection.id,
2311 bracket_pair.clone(),
2312 ));
2313 edits.push((
2314 selection.range(),
2315 format!("{}{}", text, bracket_pair.end).into(),
2316 ));
2317 brace_inserted = true;
2318 continue;
2319 }
2320 }
2321
2322 if let Some(region) = autoclose_region {
2323 // If the selection is followed by an auto-inserted closing bracket,
2324 // then don't insert that closing bracket again; just move the selection
2325 // past the closing bracket.
2326 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2327 && text.as_ref() == region.pair.end.as_str();
2328 if should_skip {
2329 let anchor = snapshot.anchor_after(selection.end);
2330 new_selections
2331 .push((selection.map(|_| anchor), region.pair.end.len()));
2332 continue;
2333 }
2334 }
2335 }
2336 // If an opening bracket is 1 character long and is typed while
2337 // text is selected, then surround that text with the bracket pair.
2338 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2339 edits.push((selection.start..selection.start, text.clone()));
2340 edits.push((
2341 selection.end..selection.end,
2342 bracket_pair.end.as_str().into(),
2343 ));
2344 brace_inserted = true;
2345 new_selections.push((
2346 Selection {
2347 id: selection.id,
2348 start: snapshot.anchor_after(selection.start),
2349 end: snapshot.anchor_before(selection.end),
2350 reversed: selection.reversed,
2351 goal: selection.goal,
2352 },
2353 0,
2354 ));
2355 continue;
2356 }
2357 }
2358 }
2359
2360 // If not handling any auto-close operation, then just replace the selected
2361 // text with the given input and move the selection to the end of the
2362 // newly inserted text.
2363 let anchor = snapshot.anchor_after(selection.end);
2364 new_selections.push((selection.map(|_| anchor), 0));
2365 edits.push((selection.start..selection.end, text.clone()));
2366 }
2367
2368 drop(snapshot);
2369 self.transact(cx, |this, cx| {
2370 this.buffer.update(cx, |buffer, cx| {
2371 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2372 });
2373
2374 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2375 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2376 let snapshot = this.buffer.read(cx).read(cx);
2377 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2378 .zip(new_selection_deltas)
2379 .map(|(selection, delta)| Selection {
2380 id: selection.id,
2381 start: selection.start + delta,
2382 end: selection.end + delta,
2383 reversed: selection.reversed,
2384 goal: SelectionGoal::None,
2385 })
2386 .collect::<Vec<_>>();
2387
2388 let mut i = 0;
2389 for (position, delta, selection_id, pair) in new_autoclose_regions {
2390 let position = position.to_offset(&snapshot) + delta;
2391 let start = snapshot.anchor_before(position);
2392 let end = snapshot.anchor_after(position);
2393 while let Some(existing_state) = this.autoclose_regions.get(i) {
2394 match existing_state.range.start.cmp(&start, &snapshot) {
2395 Ordering::Less => i += 1,
2396 Ordering::Greater => break,
2397 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2398 Ordering::Less => i += 1,
2399 Ordering::Equal => break,
2400 Ordering::Greater => break,
2401 },
2402 }
2403 }
2404 this.autoclose_regions.insert(
2405 i,
2406 AutocloseRegion {
2407 selection_id,
2408 range: start..end,
2409 pair,
2410 },
2411 );
2412 }
2413
2414 drop(snapshot);
2415 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2416 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2417
2418 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2419 if let Some(on_type_format_task) =
2420 this.trigger_on_type_formatting(text.to_string(), cx)
2421 {
2422 on_type_format_task.detach_and_log_err(cx);
2423 }
2424 }
2425
2426 if had_active_copilot_suggestion {
2427 this.refresh_copilot_suggestions(true, cx);
2428 if !this.has_active_copilot_suggestion(cx) {
2429 this.trigger_completion_on_input(&text, cx);
2430 }
2431 } else {
2432 this.trigger_completion_on_input(&text, cx);
2433 this.refresh_copilot_suggestions(true, cx);
2434 }
2435 });
2436 }
2437
2438 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2439 self.transact(cx, |this, cx| {
2440 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2441 let selections = this.selections.all::<usize>(cx);
2442 let multi_buffer = this.buffer.read(cx);
2443 let buffer = multi_buffer.snapshot(cx);
2444 selections
2445 .iter()
2446 .map(|selection| {
2447 let start_point = selection.start.to_point(&buffer);
2448 let mut indent = buffer.indent_size_for_line(start_point.row);
2449 indent.len = cmp::min(indent.len, start_point.column);
2450 let start = selection.start;
2451 let end = selection.end;
2452 let is_cursor = start == end;
2453 let language_scope = buffer.language_scope_at(start);
2454 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2455 &language_scope
2456 {
2457 let leading_whitespace_len = buffer
2458 .reversed_chars_at(start)
2459 .take_while(|c| c.is_whitespace() && *c != '\n')
2460 .map(|c| c.len_utf8())
2461 .sum::<usize>();
2462
2463 let trailing_whitespace_len = buffer
2464 .chars_at(end)
2465 .take_while(|c| c.is_whitespace() && *c != '\n')
2466 .map(|c| c.len_utf8())
2467 .sum::<usize>();
2468
2469 let insert_extra_newline =
2470 language.brackets().any(|(pair, enabled)| {
2471 let pair_start = pair.start.trim_end();
2472 let pair_end = pair.end.trim_start();
2473
2474 enabled
2475 && pair.newline
2476 && buffer.contains_str_at(
2477 end + trailing_whitespace_len,
2478 pair_end,
2479 )
2480 && buffer.contains_str_at(
2481 (start - leading_whitespace_len)
2482 .saturating_sub(pair_start.len()),
2483 pair_start,
2484 )
2485 });
2486 // Comment extension on newline is allowed only for cursor selections
2487 let comment_delimiter = language.line_comment_prefix().filter(|_| {
2488 let is_comment_extension_enabled =
2489 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2490 is_cursor && is_comment_extension_enabled
2491 });
2492 let comment_delimiter = if let Some(delimiter) = comment_delimiter {
2493 buffer
2494 .buffer_line_for_row(start_point.row)
2495 .is_some_and(|(snapshot, range)| {
2496 let mut index_of_first_non_whitespace = 0;
2497 let line_starts_with_comment = snapshot
2498 .chars_for_range(range)
2499 .skip_while(|c| {
2500 let should_skip = c.is_whitespace();
2501 if should_skip {
2502 index_of_first_non_whitespace += 1;
2503 }
2504 should_skip
2505 })
2506 .take(delimiter.len())
2507 .eq(delimiter.chars());
2508 let cursor_is_placed_after_comment_marker =
2509 index_of_first_non_whitespace + delimiter.len()
2510 <= start_point.column as usize;
2511 line_starts_with_comment
2512 && cursor_is_placed_after_comment_marker
2513 })
2514 .then(|| delimiter.clone())
2515 } else {
2516 None
2517 };
2518 (comment_delimiter, insert_extra_newline)
2519 } else {
2520 (None, false)
2521 };
2522
2523 let capacity_for_delimiter = comment_delimiter
2524 .as_deref()
2525 .map(str::len)
2526 .unwrap_or_default();
2527 let mut new_text =
2528 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2529 new_text.push_str("\n");
2530 new_text.extend(indent.chars());
2531 if let Some(delimiter) = &comment_delimiter {
2532 new_text.push_str(&delimiter);
2533 }
2534 if insert_extra_newline {
2535 new_text = new_text.repeat(2);
2536 }
2537
2538 let anchor = buffer.anchor_after(end);
2539 let new_selection = selection.map(|_| anchor);
2540 (
2541 (start..end, new_text),
2542 (insert_extra_newline, new_selection),
2543 )
2544 })
2545 .unzip()
2546 };
2547
2548 this.edit_with_autoindent(edits, cx);
2549 let buffer = this.buffer.read(cx).snapshot(cx);
2550 let new_selections = selection_fixup_info
2551 .into_iter()
2552 .map(|(extra_newline_inserted, new_selection)| {
2553 let mut cursor = new_selection.end.to_point(&buffer);
2554 if extra_newline_inserted {
2555 cursor.row -= 1;
2556 cursor.column = buffer.line_len(cursor.row);
2557 }
2558 new_selection.map(|_| cursor)
2559 })
2560 .collect();
2561
2562 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2563 this.refresh_copilot_suggestions(true, cx);
2564 });
2565 }
2566
2567 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2568 let buffer = self.buffer.read(cx);
2569 let snapshot = buffer.snapshot(cx);
2570
2571 let mut edits = Vec::new();
2572 let mut rows = Vec::new();
2573 let mut rows_inserted = 0;
2574
2575 for selection in self.selections.all_adjusted(cx) {
2576 let cursor = selection.head();
2577 let row = cursor.row;
2578
2579 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2580
2581 let newline = "\n".to_string();
2582 edits.push((start_of_line..start_of_line, newline));
2583
2584 rows.push(row + rows_inserted);
2585 rows_inserted += 1;
2586 }
2587
2588 self.transact(cx, |editor, cx| {
2589 editor.edit(edits, cx);
2590
2591 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2592 let mut index = 0;
2593 s.move_cursors_with(|map, _, _| {
2594 let row = rows[index];
2595 index += 1;
2596
2597 let point = Point::new(row, 0);
2598 let boundary = map.next_line_boundary(point).1;
2599 let clipped = map.clip_point(boundary, Bias::Left);
2600
2601 (clipped, SelectionGoal::None)
2602 });
2603 });
2604
2605 let mut indent_edits = Vec::new();
2606 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2607 for row in rows {
2608 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2609 for (row, indent) in indents {
2610 if indent.len == 0 {
2611 continue;
2612 }
2613
2614 let text = match indent.kind {
2615 IndentKind::Space => " ".repeat(indent.len as usize),
2616 IndentKind::Tab => "\t".repeat(indent.len as usize),
2617 };
2618 let point = Point::new(row, 0);
2619 indent_edits.push((point..point, text));
2620 }
2621 }
2622 editor.edit(indent_edits, cx);
2623 });
2624 }
2625
2626 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2627 let buffer = self.buffer.read(cx);
2628 let snapshot = buffer.snapshot(cx);
2629
2630 let mut edits = Vec::new();
2631 let mut rows = Vec::new();
2632 let mut rows_inserted = 0;
2633
2634 for selection in self.selections.all_adjusted(cx) {
2635 let cursor = selection.head();
2636 let row = cursor.row;
2637
2638 let point = Point::new(row + 1, 0);
2639 let start_of_line = snapshot.clip_point(point, Bias::Left);
2640
2641 let newline = "\n".to_string();
2642 edits.push((start_of_line..start_of_line, newline));
2643
2644 rows_inserted += 1;
2645 rows.push(row + rows_inserted);
2646 }
2647
2648 self.transact(cx, |editor, cx| {
2649 editor.edit(edits, cx);
2650
2651 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2652 let mut index = 0;
2653 s.move_cursors_with(|map, _, _| {
2654 let row = rows[index];
2655 index += 1;
2656
2657 let point = Point::new(row, 0);
2658 let boundary = map.next_line_boundary(point).1;
2659 let clipped = map.clip_point(boundary, Bias::Left);
2660
2661 (clipped, SelectionGoal::None)
2662 });
2663 });
2664
2665 let mut indent_edits = Vec::new();
2666 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2667 for row in rows {
2668 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2669 for (row, indent) in indents {
2670 if indent.len == 0 {
2671 continue;
2672 }
2673
2674 let text = match indent.kind {
2675 IndentKind::Space => " ".repeat(indent.len as usize),
2676 IndentKind::Tab => "\t".repeat(indent.len as usize),
2677 };
2678 let point = Point::new(row, 0);
2679 indent_edits.push((point..point, text));
2680 }
2681 }
2682 editor.edit(indent_edits, cx);
2683 });
2684 }
2685
2686 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2687 self.insert_with_autoindent_mode(
2688 text,
2689 Some(AutoindentMode::Block {
2690 original_indent_columns: Vec::new(),
2691 }),
2692 cx,
2693 );
2694 }
2695
2696 fn insert_with_autoindent_mode(
2697 &mut self,
2698 text: &str,
2699 autoindent_mode: Option<AutoindentMode>,
2700 cx: &mut ViewContext<Self>,
2701 ) {
2702 if self.read_only(cx) {
2703 return;
2704 }
2705
2706 let text: Arc<str> = text.into();
2707 self.transact(cx, |this, cx| {
2708 let old_selections = this.selections.all_adjusted(cx);
2709 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2710 let anchors = {
2711 let snapshot = buffer.read(cx);
2712 old_selections
2713 .iter()
2714 .map(|s| {
2715 let anchor = snapshot.anchor_after(s.head());
2716 s.map(|_| anchor)
2717 })
2718 .collect::<Vec<_>>()
2719 };
2720 buffer.edit(
2721 old_selections
2722 .iter()
2723 .map(|s| (s.start..s.end, text.clone())),
2724 autoindent_mode,
2725 cx,
2726 );
2727 anchors
2728 });
2729
2730 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2731 s.select_anchors(selection_anchors);
2732 })
2733 });
2734 }
2735
2736 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2737 if !EditorSettings::get_global(cx).show_completions_on_input {
2738 return;
2739 }
2740
2741 let selection = self.selections.newest_anchor();
2742 if self
2743 .buffer
2744 .read(cx)
2745 .is_completion_trigger(selection.head(), text, cx)
2746 {
2747 self.show_completions(&ShowCompletions, cx);
2748 } else {
2749 self.hide_context_menu(cx);
2750 }
2751 }
2752
2753 /// If any empty selections is touching the start of its innermost containing autoclose
2754 /// region, expand it to select the brackets.
2755 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2756 let selections = self.selections.all::<usize>(cx);
2757 let buffer = self.buffer.read(cx).read(cx);
2758 let mut new_selections = Vec::new();
2759 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2760 if let (Some(region), true) = (region, selection.is_empty()) {
2761 let mut range = region.range.to_offset(&buffer);
2762 if selection.start == range.start {
2763 if range.start >= region.pair.start.len() {
2764 range.start -= region.pair.start.len();
2765 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2766 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2767 range.end += region.pair.end.len();
2768 selection.start = range.start;
2769 selection.end = range.end;
2770 }
2771 }
2772 }
2773 }
2774 }
2775 new_selections.push(selection);
2776 }
2777
2778 drop(buffer);
2779 self.change_selections(None, cx, |selections| selections.select(new_selections));
2780 }
2781
2782 /// Iterate the given selections, and for each one, find the smallest surrounding
2783 /// autoclose region. This uses the ordering of the selections and the autoclose
2784 /// regions to avoid repeated comparisons.
2785 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2786 &'a self,
2787 selections: impl IntoIterator<Item = Selection<D>>,
2788 buffer: &'a MultiBufferSnapshot,
2789 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2790 let mut i = 0;
2791 let mut regions = self.autoclose_regions.as_slice();
2792 selections.into_iter().map(move |selection| {
2793 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2794
2795 let mut enclosing = None;
2796 while let Some(pair_state) = regions.get(i) {
2797 if pair_state.range.end.to_offset(buffer) < range.start {
2798 regions = ®ions[i + 1..];
2799 i = 0;
2800 } else if pair_state.range.start.to_offset(buffer) > range.end {
2801 break;
2802 } else {
2803 if pair_state.selection_id == selection.id {
2804 enclosing = Some(pair_state);
2805 }
2806 i += 1;
2807 }
2808 }
2809
2810 (selection.clone(), enclosing)
2811 })
2812 }
2813
2814 /// Remove any autoclose regions that no longer contain their selection.
2815 fn invalidate_autoclose_regions(
2816 &mut self,
2817 mut selections: &[Selection<Anchor>],
2818 buffer: &MultiBufferSnapshot,
2819 ) {
2820 self.autoclose_regions.retain(|state| {
2821 let mut i = 0;
2822 while let Some(selection) = selections.get(i) {
2823 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2824 selections = &selections[1..];
2825 continue;
2826 }
2827 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2828 break;
2829 }
2830 if selection.id == state.selection_id {
2831 return true;
2832 } else {
2833 i += 1;
2834 }
2835 }
2836 false
2837 });
2838 }
2839
2840 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2841 let offset = position.to_offset(buffer);
2842 let (word_range, kind) = buffer.surrounding_word(offset);
2843 if offset > word_range.start && kind == Some(CharKind::Word) {
2844 Some(
2845 buffer
2846 .text_for_range(word_range.start..offset)
2847 .collect::<String>(),
2848 )
2849 } else {
2850 None
2851 }
2852 }
2853
2854 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2855 self.refresh_inlay_hints(
2856 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2857 cx,
2858 );
2859 }
2860
2861 pub fn inlay_hints_enabled(&self) -> bool {
2862 self.inlay_hint_cache.enabled
2863 }
2864
2865 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2866 if self.project.is_none() || self.mode != EditorMode::Full {
2867 return;
2868 }
2869
2870 let reason_description = reason.description();
2871 let (invalidate_cache, required_languages) = match reason {
2872 InlayHintRefreshReason::Toggle(enabled) => {
2873 self.inlay_hint_cache.enabled = enabled;
2874 if enabled {
2875 (InvalidationStrategy::RefreshRequested, None)
2876 } else {
2877 self.inlay_hint_cache.clear();
2878 self.splice_inlay_hints(
2879 self.visible_inlay_hints(cx)
2880 .iter()
2881 .map(|inlay| inlay.id)
2882 .collect(),
2883 Vec::new(),
2884 cx,
2885 );
2886 return;
2887 }
2888 }
2889 InlayHintRefreshReason::SettingsChange(new_settings) => {
2890 match self.inlay_hint_cache.update_settings(
2891 &self.buffer,
2892 new_settings,
2893 self.visible_inlay_hints(cx),
2894 cx,
2895 ) {
2896 ControlFlow::Break(Some(InlaySplice {
2897 to_remove,
2898 to_insert,
2899 })) => {
2900 self.splice_inlay_hints(to_remove, to_insert, cx);
2901 return;
2902 }
2903 ControlFlow::Break(None) => return,
2904 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2905 }
2906 }
2907 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2908 if let Some(InlaySplice {
2909 to_remove,
2910 to_insert,
2911 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2912 {
2913 self.splice_inlay_hints(to_remove, to_insert, cx);
2914 }
2915 return;
2916 }
2917 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2918 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2919 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2920 }
2921 InlayHintRefreshReason::RefreshRequested => {
2922 (InvalidationStrategy::RefreshRequested, None)
2923 }
2924 };
2925
2926 if let Some(InlaySplice {
2927 to_remove,
2928 to_insert,
2929 }) = self.inlay_hint_cache.spawn_hint_refresh(
2930 reason_description,
2931 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
2932 invalidate_cache,
2933 cx,
2934 ) {
2935 self.splice_inlay_hints(to_remove, to_insert, cx);
2936 }
2937 }
2938
2939 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
2940 self.display_map
2941 .read(cx)
2942 .current_inlays()
2943 .filter(move |inlay| {
2944 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
2945 })
2946 .cloned()
2947 .collect()
2948 }
2949
2950 pub fn excerpts_for_inlay_hints_query(
2951 &self,
2952 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
2953 cx: &mut ViewContext<Editor>,
2954 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
2955 let Some(project) = self.project.as_ref() else {
2956 return HashMap::default();
2957 };
2958 let project = project.read(cx);
2959 let multi_buffer = self.buffer().read(cx);
2960 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
2961 let multi_buffer_visible_start = self
2962 .scroll_manager
2963 .anchor()
2964 .anchor
2965 .to_point(&multi_buffer_snapshot);
2966 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
2967 multi_buffer_visible_start
2968 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
2969 Bias::Left,
2970 );
2971 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
2972 multi_buffer
2973 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
2974 .into_iter()
2975 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
2976 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
2977 let buffer = buffer_handle.read(cx);
2978 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
2979 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
2980 let worktree_entry = buffer_worktree
2981 .read(cx)
2982 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
2983 if worktree_entry.is_ignored {
2984 return None;
2985 }
2986
2987 let language = buffer.language()?;
2988 if let Some(restrict_to_languages) = restrict_to_languages {
2989 if !restrict_to_languages.contains(language) {
2990 return None;
2991 }
2992 }
2993 Some((
2994 excerpt_id,
2995 (
2996 buffer_handle,
2997 buffer.version().clone(),
2998 excerpt_visible_range,
2999 ),
3000 ))
3001 })
3002 .collect()
3003 }
3004
3005 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3006 TextLayoutDetails {
3007 text_system: cx.text_system().clone(),
3008 editor_style: self.style.clone().unwrap(),
3009 rem_size: cx.rem_size(),
3010 }
3011 }
3012
3013 fn splice_inlay_hints(
3014 &self,
3015 to_remove: Vec<InlayId>,
3016 to_insert: Vec<Inlay>,
3017 cx: &mut ViewContext<Self>,
3018 ) {
3019 self.display_map.update(cx, |display_map, cx| {
3020 display_map.splice_inlays(to_remove, to_insert, cx);
3021 });
3022 cx.notify();
3023 }
3024
3025 fn trigger_on_type_formatting(
3026 &self,
3027 input: String,
3028 cx: &mut ViewContext<Self>,
3029 ) -> Option<Task<Result<()>>> {
3030 if input.len() != 1 {
3031 return None;
3032 }
3033
3034 let project = self.project.as_ref()?;
3035 let position = self.selections.newest_anchor().head();
3036 let (buffer, buffer_position) = self
3037 .buffer
3038 .read(cx)
3039 .text_anchor_for_position(position.clone(), cx)?;
3040
3041 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3042 // hence we do LSP request & edit on host side only — add formats to host's history.
3043 let push_to_lsp_host_history = true;
3044 // If this is not the host, append its history with new edits.
3045 let push_to_client_history = project.read(cx).is_remote();
3046
3047 let on_type_formatting = project.update(cx, |project, cx| {
3048 project.on_type_format(
3049 buffer.clone(),
3050 buffer_position,
3051 input,
3052 push_to_lsp_host_history,
3053 cx,
3054 )
3055 });
3056 Some(cx.spawn(|editor, mut cx| async move {
3057 if let Some(transaction) = on_type_formatting.await? {
3058 if push_to_client_history {
3059 buffer
3060 .update(&mut cx, |buffer, _| {
3061 buffer.push_transaction(transaction, Instant::now());
3062 })
3063 .ok();
3064 }
3065 editor.update(&mut cx, |editor, cx| {
3066 editor.refresh_document_highlights(cx);
3067 })?;
3068 }
3069 Ok(())
3070 }))
3071 }
3072
3073 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3074 if self.pending_rename.is_some() {
3075 return;
3076 }
3077
3078 let Some(provider) = self.completion_provider.as_ref() else {
3079 return;
3080 };
3081
3082 let position = self.selections.newest_anchor().head();
3083 let (buffer, buffer_position) = if let Some(output) = self
3084 .buffer
3085 .read(cx)
3086 .text_anchor_for_position(position.clone(), cx)
3087 {
3088 output
3089 } else {
3090 return;
3091 };
3092
3093 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3094 let completions = provider.completions(&buffer, buffer_position, cx);
3095
3096 let id = post_inc(&mut self.next_completion_id);
3097 let task = cx.spawn(|this, mut cx| {
3098 async move {
3099 let completions = completions.await.log_err();
3100 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3101 let mut menu = CompletionsMenu {
3102 id,
3103 initial_position: position,
3104 match_candidates: completions
3105 .iter()
3106 .enumerate()
3107 .map(|(id, completion)| {
3108 StringMatchCandidate::new(
3109 id,
3110 completion.label.text[completion.label.filter_range.clone()]
3111 .into(),
3112 )
3113 })
3114 .collect(),
3115 buffer,
3116 completions: Arc::new(RwLock::new(completions.into())),
3117 matches: Vec::new().into(),
3118 selected_item: 0,
3119 scroll_handle: UniformListScrollHandle::new(),
3120 };
3121 menu.filter(query.as_deref(), cx.background_executor().clone())
3122 .await;
3123
3124 if menu.matches.is_empty() {
3125 (None, None)
3126 } else {
3127 let pre_resolve_task = this
3128 .update(&mut cx, |editor, cx| {
3129 menu.pre_resolve_completion_documentation(editor, cx)
3130 })
3131 .ok()
3132 .flatten();
3133 (Some(menu), pre_resolve_task)
3134 }
3135 } else {
3136 (None, None)
3137 };
3138
3139 this.update(&mut cx, |this, cx| {
3140 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3141
3142 let mut context_menu = this.context_menu.write();
3143 match context_menu.as_ref() {
3144 None => {}
3145
3146 Some(ContextMenu::Completions(prev_menu)) => {
3147 if prev_menu.id > id {
3148 return;
3149 }
3150 }
3151
3152 _ => return,
3153 }
3154
3155 if this.focus_handle.is_focused(cx) && menu.is_some() {
3156 let menu = menu.unwrap();
3157 *context_menu = Some(ContextMenu::Completions(menu));
3158 drop(context_menu);
3159 this.discard_copilot_suggestion(cx);
3160 cx.notify();
3161 } else if this.completion_tasks.len() <= 1 {
3162 // If there are no more completion tasks and the last menu was
3163 // empty, we should hide it. If it was already hidden, we should
3164 // also show the copilot suggestion when available.
3165 drop(context_menu);
3166 if this.hide_context_menu(cx).is_none() {
3167 this.update_visible_copilot_suggestion(cx);
3168 }
3169 }
3170 })?;
3171
3172 if let Some(pre_resolve_task) = pre_resolve_task {
3173 pre_resolve_task.await;
3174 }
3175
3176 Ok::<_, anyhow::Error>(())
3177 }
3178 .log_err()
3179 });
3180
3181 self.completion_tasks.push((id, task));
3182 }
3183
3184 pub fn confirm_completion(
3185 &mut self,
3186 action: &ConfirmCompletion,
3187 cx: &mut ViewContext<Self>,
3188 ) -> Option<Task<Result<()>>> {
3189 use language::ToOffset as _;
3190
3191 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3192 menu
3193 } else {
3194 return None;
3195 };
3196
3197 let mat = completions_menu
3198 .matches
3199 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3200 let buffer_handle = completions_menu.buffer;
3201 let completions = completions_menu.completions.read();
3202 let completion = completions.get(mat.candidate_id)?;
3203 cx.stop_propagation();
3204
3205 let snippet;
3206 let text;
3207 if completion.is_snippet() {
3208 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3209 text = snippet.as_ref().unwrap().text.clone();
3210 } else {
3211 snippet = None;
3212 text = completion.new_text.clone();
3213 };
3214 let selections = self.selections.all::<usize>(cx);
3215 let buffer = buffer_handle.read(cx);
3216 let old_range = completion.old_range.to_offset(buffer);
3217 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3218
3219 let newest_selection = self.selections.newest_anchor();
3220 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3221 return None;
3222 }
3223
3224 let lookbehind = newest_selection
3225 .start
3226 .text_anchor
3227 .to_offset(buffer)
3228 .saturating_sub(old_range.start);
3229 let lookahead = old_range
3230 .end
3231 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3232 let mut common_prefix_len = old_text
3233 .bytes()
3234 .zip(text.bytes())
3235 .take_while(|(a, b)| a == b)
3236 .count();
3237
3238 let snapshot = self.buffer.read(cx).snapshot(cx);
3239 let mut range_to_replace: Option<Range<isize>> = None;
3240 let mut ranges = Vec::new();
3241 for selection in &selections {
3242 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3243 let start = selection.start.saturating_sub(lookbehind);
3244 let end = selection.end + lookahead;
3245 if selection.id == newest_selection.id {
3246 range_to_replace = Some(
3247 ((start + common_prefix_len) as isize - selection.start as isize)
3248 ..(end as isize - selection.start as isize),
3249 );
3250 }
3251 ranges.push(start + common_prefix_len..end);
3252 } else {
3253 common_prefix_len = 0;
3254 ranges.clear();
3255 ranges.extend(selections.iter().map(|s| {
3256 if s.id == newest_selection.id {
3257 range_to_replace = Some(
3258 old_range.start.to_offset_utf16(&snapshot).0 as isize
3259 - selection.start as isize
3260 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3261 - selection.start as isize,
3262 );
3263 old_range.clone()
3264 } else {
3265 s.start..s.end
3266 }
3267 }));
3268 break;
3269 }
3270 }
3271 let text = &text[common_prefix_len..];
3272
3273 cx.emit(EditorEvent::InputHandled {
3274 utf16_range_to_replace: range_to_replace,
3275 text: text.into(),
3276 });
3277
3278 self.transact(cx, |this, cx| {
3279 if let Some(mut snippet) = snippet {
3280 snippet.text = text.to_string();
3281 for tabstop in snippet.tabstops.iter_mut().flatten() {
3282 tabstop.start -= common_prefix_len as isize;
3283 tabstop.end -= common_prefix_len as isize;
3284 }
3285
3286 this.insert_snippet(&ranges, snippet, cx).log_err();
3287 } else {
3288 this.buffer.update(cx, |buffer, cx| {
3289 buffer.edit(
3290 ranges.iter().map(|range| (range.clone(), text)),
3291 this.autoindent_mode.clone(),
3292 cx,
3293 );
3294 });
3295 }
3296
3297 this.refresh_copilot_suggestions(true, cx);
3298 });
3299
3300 let provider = self.completion_provider.as_ref()?;
3301 let apply_edits = provider.apply_additional_edits_for_completion(
3302 buffer_handle,
3303 completion.clone(),
3304 true,
3305 cx,
3306 );
3307 Some(cx.foreground_executor().spawn(async move {
3308 apply_edits.await?;
3309 Ok(())
3310 }))
3311 }
3312
3313 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3314 let mut context_menu = self.context_menu.write();
3315 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3316 *context_menu = None;
3317 cx.notify();
3318 return;
3319 }
3320 drop(context_menu);
3321
3322 let deployed_from_indicator = action.deployed_from_indicator;
3323 let mut task = self.code_actions_task.take();
3324 cx.spawn(|this, mut cx| async move {
3325 while let Some(prev_task) = task {
3326 prev_task.await;
3327 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3328 }
3329
3330 this.update(&mut cx, |this, cx| {
3331 if this.focus_handle.is_focused(cx) {
3332 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3333 this.completion_tasks.clear();
3334 this.discard_copilot_suggestion(cx);
3335 *this.context_menu.write() =
3336 Some(ContextMenu::CodeActions(CodeActionsMenu {
3337 buffer,
3338 actions,
3339 selected_item: Default::default(),
3340 scroll_handle: UniformListScrollHandle::default(),
3341 deployed_from_indicator,
3342 }));
3343 cx.notify();
3344 }
3345 }
3346 })?;
3347
3348 Ok::<_, anyhow::Error>(())
3349 })
3350 .detach_and_log_err(cx);
3351 }
3352
3353 pub fn confirm_code_action(
3354 &mut self,
3355 action: &ConfirmCodeAction,
3356 cx: &mut ViewContext<Self>,
3357 ) -> Option<Task<Result<()>>> {
3358 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3359 menu
3360 } else {
3361 return None;
3362 };
3363 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3364 let action = actions_menu.actions.get(action_ix)?.clone();
3365 let title = action.lsp_action.title.clone();
3366 let buffer = actions_menu.buffer;
3367 let workspace = self.workspace()?;
3368
3369 let apply_code_actions = workspace
3370 .read(cx)
3371 .project()
3372 .clone()
3373 .update(cx, |project, cx| {
3374 project.apply_code_action(buffer, action, true, cx)
3375 });
3376 let workspace = workspace.downgrade();
3377 Some(cx.spawn(|editor, cx| async move {
3378 let project_transaction = apply_code_actions.await?;
3379 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3380 }))
3381 }
3382
3383 async fn open_project_transaction(
3384 this: &WeakView<Editor>,
3385 workspace: WeakView<Workspace>,
3386 transaction: ProjectTransaction,
3387 title: String,
3388 mut cx: AsyncWindowContext,
3389 ) -> Result<()> {
3390 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3391
3392 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3393 cx.update(|cx| {
3394 entries.sort_unstable_by_key(|(buffer, _)| {
3395 buffer.read(cx).file().map(|f| f.path().clone())
3396 });
3397 })?;
3398
3399 // If the project transaction's edits are all contained within this editor, then
3400 // avoid opening a new editor to display them.
3401
3402 if let Some((buffer, transaction)) = entries.first() {
3403 if entries.len() == 1 {
3404 let excerpt = this.update(&mut cx, |editor, cx| {
3405 editor
3406 .buffer()
3407 .read(cx)
3408 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3409 })?;
3410 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3411 if excerpted_buffer == *buffer {
3412 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3413 let excerpt_range = excerpt_range.to_offset(buffer);
3414 buffer
3415 .edited_ranges_for_transaction::<usize>(transaction)
3416 .all(|range| {
3417 excerpt_range.start <= range.start
3418 && excerpt_range.end >= range.end
3419 })
3420 })?;
3421
3422 if all_edits_within_excerpt {
3423 return Ok(());
3424 }
3425 }
3426 }
3427 }
3428 } else {
3429 return Ok(());
3430 }
3431
3432 let mut ranges_to_highlight = Vec::new();
3433 let excerpt_buffer = cx.new_model(|cx| {
3434 let mut multibuffer =
3435 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3436 for (buffer_handle, transaction) in &entries {
3437 let buffer = buffer_handle.read(cx);
3438 ranges_to_highlight.extend(
3439 multibuffer.push_excerpts_with_context_lines(
3440 buffer_handle.clone(),
3441 buffer
3442 .edited_ranges_for_transaction::<usize>(transaction)
3443 .collect(),
3444 1,
3445 cx,
3446 ),
3447 );
3448 }
3449 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3450 multibuffer
3451 })?;
3452
3453 workspace.update(&mut cx, |workspace, cx| {
3454 let project = workspace.project().clone();
3455 let editor =
3456 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3457 workspace.add_item(Box::new(editor.clone()), cx);
3458 editor.update(cx, |editor, cx| {
3459 editor.highlight_background::<Self>(
3460 ranges_to_highlight,
3461 |theme| theme.editor_highlighted_line_background,
3462 cx,
3463 );
3464 });
3465 })?;
3466
3467 Ok(())
3468 }
3469
3470 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3471 let project = self.project.clone()?;
3472 let buffer = self.buffer.read(cx);
3473 let newest_selection = self.selections.newest_anchor().clone();
3474 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3475 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3476 if start_buffer != end_buffer {
3477 return None;
3478 }
3479
3480 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3481 cx.background_executor()
3482 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3483 .await;
3484
3485 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3486 project.code_actions(&start_buffer, start..end, cx)
3487 }) {
3488 code_actions.await.log_err()
3489 } else {
3490 None
3491 };
3492
3493 this.update(&mut cx, |this, cx| {
3494 this.available_code_actions = actions.and_then(|actions| {
3495 if actions.is_empty() {
3496 None
3497 } else {
3498 Some((start_buffer, actions.into()))
3499 }
3500 });
3501 cx.notify();
3502 })
3503 .log_err();
3504 }));
3505 None
3506 }
3507
3508 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3509 if self.pending_rename.is_some() {
3510 return None;
3511 }
3512
3513 let project = self.project.clone()?;
3514 let buffer = self.buffer.read(cx);
3515 let newest_selection = self.selections.newest_anchor().clone();
3516 let cursor_position = newest_selection.head();
3517 let (cursor_buffer, cursor_buffer_position) =
3518 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3519 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3520 if cursor_buffer != tail_buffer {
3521 return None;
3522 }
3523
3524 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3525 cx.background_executor()
3526 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3527 .await;
3528
3529 let highlights = if let Some(highlights) = project
3530 .update(&mut cx, |project, cx| {
3531 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3532 })
3533 .log_err()
3534 {
3535 highlights.await.log_err()
3536 } else {
3537 None
3538 };
3539
3540 if let Some(highlights) = highlights {
3541 this.update(&mut cx, |this, cx| {
3542 if this.pending_rename.is_some() {
3543 return;
3544 }
3545
3546 let buffer_id = cursor_position.buffer_id;
3547 let buffer = this.buffer.read(cx);
3548 if !buffer
3549 .text_anchor_for_position(cursor_position, cx)
3550 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3551 {
3552 return;
3553 }
3554
3555 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3556 let mut write_ranges = Vec::new();
3557 let mut read_ranges = Vec::new();
3558 for highlight in highlights {
3559 for (excerpt_id, excerpt_range) in
3560 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3561 {
3562 let start = highlight
3563 .range
3564 .start
3565 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3566 let end = highlight
3567 .range
3568 .end
3569 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3570 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3571 continue;
3572 }
3573
3574 let range = Anchor {
3575 buffer_id,
3576 excerpt_id: excerpt_id.clone(),
3577 text_anchor: start,
3578 }..Anchor {
3579 buffer_id,
3580 excerpt_id,
3581 text_anchor: end,
3582 };
3583 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3584 write_ranges.push(range);
3585 } else {
3586 read_ranges.push(range);
3587 }
3588 }
3589 }
3590
3591 this.highlight_background::<DocumentHighlightRead>(
3592 read_ranges,
3593 |theme| theme.editor_document_highlight_read_background,
3594 cx,
3595 );
3596 this.highlight_background::<DocumentHighlightWrite>(
3597 write_ranges,
3598 |theme| theme.editor_document_highlight_write_background,
3599 cx,
3600 );
3601 cx.notify();
3602 })
3603 .log_err();
3604 }
3605 }));
3606 None
3607 }
3608
3609 fn refresh_copilot_suggestions(
3610 &mut self,
3611 debounce: bool,
3612 cx: &mut ViewContext<Self>,
3613 ) -> Option<()> {
3614 let copilot = Copilot::global(cx)?;
3615 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3616 self.clear_copilot_suggestions(cx);
3617 return None;
3618 }
3619 self.update_visible_copilot_suggestion(cx);
3620
3621 let snapshot = self.buffer.read(cx).snapshot(cx);
3622 let cursor = self.selections.newest_anchor().head();
3623 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3624 self.clear_copilot_suggestions(cx);
3625 return None;
3626 }
3627
3628 let (buffer, buffer_position) =
3629 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3630 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3631 if debounce {
3632 cx.background_executor()
3633 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3634 .await;
3635 }
3636
3637 let completions = copilot
3638 .update(&mut cx, |copilot, cx| {
3639 copilot.completions(&buffer, buffer_position, cx)
3640 })
3641 .log_err()
3642 .unwrap_or(Task::ready(Ok(Vec::new())))
3643 .await
3644 .log_err()
3645 .into_iter()
3646 .flatten()
3647 .collect_vec();
3648
3649 this.update(&mut cx, |this, cx| {
3650 if !completions.is_empty() {
3651 this.copilot_state.cycled = false;
3652 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3653 this.copilot_state.completions.clear();
3654 this.copilot_state.active_completion_index = 0;
3655 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3656 for completion in completions {
3657 this.copilot_state.push_completion(completion);
3658 }
3659 this.update_visible_copilot_suggestion(cx);
3660 }
3661 })
3662 .log_err()?;
3663 Some(())
3664 });
3665
3666 Some(())
3667 }
3668
3669 fn cycle_copilot_suggestions(
3670 &mut self,
3671 direction: Direction,
3672 cx: &mut ViewContext<Self>,
3673 ) -> Option<()> {
3674 let copilot = Copilot::global(cx)?;
3675 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3676 return None;
3677 }
3678
3679 if self.copilot_state.cycled {
3680 self.copilot_state.cycle_completions(direction);
3681 self.update_visible_copilot_suggestion(cx);
3682 } else {
3683 let cursor = self.selections.newest_anchor().head();
3684 let (buffer, buffer_position) =
3685 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3686 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3687 let completions = copilot
3688 .update(&mut cx, |copilot, cx| {
3689 copilot.completions_cycling(&buffer, buffer_position, cx)
3690 })
3691 .log_err()?
3692 .await;
3693
3694 this.update(&mut cx, |this, cx| {
3695 this.copilot_state.cycled = true;
3696 for completion in completions.log_err().into_iter().flatten() {
3697 this.copilot_state.push_completion(completion);
3698 }
3699 this.copilot_state.cycle_completions(direction);
3700 this.update_visible_copilot_suggestion(cx);
3701 })
3702 .log_err()?;
3703
3704 Some(())
3705 });
3706 }
3707
3708 Some(())
3709 }
3710
3711 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3712 if !self.has_active_copilot_suggestion(cx) {
3713 self.refresh_copilot_suggestions(false, cx);
3714 return;
3715 }
3716
3717 self.update_visible_copilot_suggestion(cx);
3718 }
3719
3720 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3721 self.show_cursor_names(cx);
3722 }
3723
3724 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3725 self.show_cursor_names = true;
3726 cx.notify();
3727 cx.spawn(|this, mut cx| async move {
3728 cx.background_executor().timer(Duration::from_secs(3)).await;
3729 this.update(&mut cx, |this, cx| {
3730 this.show_cursor_names = false;
3731 cx.notify()
3732 })
3733 .ok()
3734 })
3735 .detach();
3736 }
3737
3738 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3739 if self.has_active_copilot_suggestion(cx) {
3740 self.cycle_copilot_suggestions(Direction::Next, cx);
3741 } else {
3742 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3743 if is_copilot_disabled {
3744 cx.propagate();
3745 }
3746 }
3747 }
3748
3749 fn previous_copilot_suggestion(
3750 &mut self,
3751 _: &copilot::PreviousSuggestion,
3752 cx: &mut ViewContext<Self>,
3753 ) {
3754 if self.has_active_copilot_suggestion(cx) {
3755 self.cycle_copilot_suggestions(Direction::Prev, cx);
3756 } else {
3757 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3758 if is_copilot_disabled {
3759 cx.propagate();
3760 }
3761 }
3762 }
3763
3764 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3765 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3766 if let Some((copilot, completion)) =
3767 Copilot::global(cx).zip(self.copilot_state.active_completion())
3768 {
3769 copilot
3770 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3771 .detach_and_log_err(cx);
3772
3773 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3774 }
3775 cx.emit(EditorEvent::InputHandled {
3776 utf16_range_to_replace: None,
3777 text: suggestion.text.to_string().into(),
3778 });
3779 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3780 cx.notify();
3781 true
3782 } else {
3783 false
3784 }
3785 }
3786
3787 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3788 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3789 if let Some(copilot) = Copilot::global(cx) {
3790 copilot
3791 .update(cx, |copilot, cx| {
3792 copilot.discard_completions(&self.copilot_state.completions, cx)
3793 })
3794 .detach_and_log_err(cx);
3795
3796 self.report_copilot_event(None, false, cx)
3797 }
3798
3799 self.display_map.update(cx, |map, cx| {
3800 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3801 });
3802 cx.notify();
3803 true
3804 } else {
3805 false
3806 }
3807 }
3808
3809 fn is_copilot_enabled_at(
3810 &self,
3811 location: Anchor,
3812 snapshot: &MultiBufferSnapshot,
3813 cx: &mut ViewContext<Self>,
3814 ) -> bool {
3815 let file = snapshot.file_at(location);
3816 let language = snapshot.language_at(location);
3817 let settings = all_language_settings(file, cx);
3818 self.show_copilot_suggestions
3819 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3820 }
3821
3822 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3823 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3824 let buffer = self.buffer.read(cx).read(cx);
3825 suggestion.position.is_valid(&buffer)
3826 } else {
3827 false
3828 }
3829 }
3830
3831 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3832 let suggestion = self.copilot_state.suggestion.take()?;
3833 self.display_map.update(cx, |map, cx| {
3834 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3835 });
3836 let buffer = self.buffer.read(cx).read(cx);
3837
3838 if suggestion.position.is_valid(&buffer) {
3839 Some(suggestion)
3840 } else {
3841 None
3842 }
3843 }
3844
3845 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3846 let snapshot = self.buffer.read(cx).snapshot(cx);
3847 let selection = self.selections.newest_anchor();
3848 let cursor = selection.head();
3849
3850 if self.context_menu.read().is_some()
3851 || !self.completion_tasks.is_empty()
3852 || selection.start != selection.end
3853 {
3854 self.discard_copilot_suggestion(cx);
3855 } else if let Some(text) = self
3856 .copilot_state
3857 .text_for_active_completion(cursor, &snapshot)
3858 {
3859 let text = Rope::from(text);
3860 let mut to_remove = Vec::new();
3861 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3862 to_remove.push(suggestion.id);
3863 }
3864
3865 let suggestion_inlay =
3866 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3867 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3868 self.display_map.update(cx, move |map, cx| {
3869 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3870 });
3871 cx.notify();
3872 } else {
3873 self.discard_copilot_suggestion(cx);
3874 }
3875 }
3876
3877 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3878 self.copilot_state = Default::default();
3879 self.discard_copilot_suggestion(cx);
3880 }
3881
3882 pub fn render_code_actions_indicator(
3883 &self,
3884 _style: &EditorStyle,
3885 is_active: bool,
3886 cx: &mut ViewContext<Self>,
3887 ) -> Option<IconButton> {
3888 if self.available_code_actions.is_some() {
3889 Some(
3890 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3891 .icon_size(IconSize::Small)
3892 .icon_color(Color::Muted)
3893 .selected(is_active)
3894 .on_click(cx.listener(|editor, _e, cx| {
3895 editor.toggle_code_actions(
3896 &ToggleCodeActions {
3897 deployed_from_indicator: true,
3898 },
3899 cx,
3900 );
3901 })),
3902 )
3903 } else {
3904 None
3905 }
3906 }
3907
3908 pub fn render_fold_indicators(
3909 &self,
3910 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
3911 _style: &EditorStyle,
3912 gutter_hovered: bool,
3913 _line_height: Pixels,
3914 _gutter_margin: Pixels,
3915 cx: &mut ViewContext<Self>,
3916 ) -> Vec<Option<IconButton>> {
3917 fold_data
3918 .iter()
3919 .enumerate()
3920 .map(|(ix, fold_data)| {
3921 fold_data
3922 .map(|(fold_status, buffer_row, active)| {
3923 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
3924 IconButton::new(ix as usize, ui::IconName::ChevronDown)
3925 .on_click(cx.listener(move |editor, _e, cx| match fold_status {
3926 FoldStatus::Folded => {
3927 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
3928 }
3929 FoldStatus::Foldable => {
3930 editor.fold_at(&FoldAt { buffer_row }, cx);
3931 }
3932 }))
3933 .icon_color(ui::Color::Muted)
3934 .icon_size(ui::IconSize::Small)
3935 .selected(fold_status == FoldStatus::Folded)
3936 .selected_icon(ui::IconName::ChevronRight)
3937 .size(ui::ButtonSize::None)
3938 })
3939 })
3940 .flatten()
3941 })
3942 .collect()
3943 }
3944
3945 pub fn context_menu_visible(&self) -> bool {
3946 self.context_menu
3947 .read()
3948 .as_ref()
3949 .map_or(false, |menu| menu.visible())
3950 }
3951
3952 pub fn render_context_menu(
3953 &self,
3954 cursor_position: DisplayPoint,
3955 style: &EditorStyle,
3956 max_height: Pixels,
3957 cx: &mut ViewContext<Editor>,
3958 ) -> Option<(DisplayPoint, AnyElement)> {
3959 self.context_menu.read().as_ref().map(|menu| {
3960 menu.render(
3961 cursor_position,
3962 style,
3963 max_height,
3964 self.workspace.as_ref().map(|(w, _)| w.clone()),
3965 cx,
3966 )
3967 })
3968 }
3969
3970 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
3971 cx.notify();
3972 self.completion_tasks.clear();
3973 let context_menu = self.context_menu.write().take();
3974 if context_menu.is_some() {
3975 self.update_visible_copilot_suggestion(cx);
3976 }
3977 context_menu
3978 }
3979
3980 pub fn insert_snippet(
3981 &mut self,
3982 insertion_ranges: &[Range<usize>],
3983 snippet: Snippet,
3984 cx: &mut ViewContext<Self>,
3985 ) -> Result<()> {
3986 let tabstops = self.buffer.update(cx, |buffer, cx| {
3987 let snippet_text: Arc<str> = snippet.text.clone().into();
3988 buffer.edit(
3989 insertion_ranges
3990 .iter()
3991 .cloned()
3992 .map(|range| (range, snippet_text.clone())),
3993 Some(AutoindentMode::EachLine),
3994 cx,
3995 );
3996
3997 let snapshot = &*buffer.read(cx);
3998 let snippet = &snippet;
3999 snippet
4000 .tabstops
4001 .iter()
4002 .map(|tabstop| {
4003 let mut tabstop_ranges = tabstop
4004 .iter()
4005 .flat_map(|tabstop_range| {
4006 let mut delta = 0_isize;
4007 insertion_ranges.iter().map(move |insertion_range| {
4008 let insertion_start = insertion_range.start as isize + delta;
4009 delta +=
4010 snippet.text.len() as isize - insertion_range.len() as isize;
4011
4012 let start = snapshot.anchor_before(
4013 (insertion_start + tabstop_range.start) as usize,
4014 );
4015 let end = snapshot
4016 .anchor_after((insertion_start + tabstop_range.end) as usize);
4017 start..end
4018 })
4019 })
4020 .collect::<Vec<_>>();
4021 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4022 tabstop_ranges
4023 })
4024 .collect::<Vec<_>>()
4025 });
4026
4027 if let Some(tabstop) = tabstops.first() {
4028 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4029 s.select_ranges(tabstop.iter().cloned());
4030 });
4031 self.snippet_stack.push(SnippetState {
4032 active_index: 0,
4033 ranges: tabstops,
4034 });
4035 }
4036
4037 Ok(())
4038 }
4039
4040 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4041 self.move_to_snippet_tabstop(Bias::Right, cx)
4042 }
4043
4044 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4045 self.move_to_snippet_tabstop(Bias::Left, cx)
4046 }
4047
4048 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4049 if let Some(mut snippet) = self.snippet_stack.pop() {
4050 match bias {
4051 Bias::Left => {
4052 if snippet.active_index > 0 {
4053 snippet.active_index -= 1;
4054 } else {
4055 self.snippet_stack.push(snippet);
4056 return false;
4057 }
4058 }
4059 Bias::Right => {
4060 if snippet.active_index + 1 < snippet.ranges.len() {
4061 snippet.active_index += 1;
4062 } else {
4063 self.snippet_stack.push(snippet);
4064 return false;
4065 }
4066 }
4067 }
4068 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4070 s.select_anchor_ranges(current_ranges.iter().cloned())
4071 });
4072 // If snippet state is not at the last tabstop, push it back on the stack
4073 if snippet.active_index + 1 < snippet.ranges.len() {
4074 self.snippet_stack.push(snippet);
4075 }
4076 return true;
4077 }
4078 }
4079
4080 false
4081 }
4082
4083 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4084 self.transact(cx, |this, cx| {
4085 this.select_all(&SelectAll, cx);
4086 this.insert("", cx);
4087 });
4088 }
4089
4090 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4091 self.transact(cx, |this, cx| {
4092 this.select_autoclose_pair(cx);
4093 let mut selections = this.selections.all::<Point>(cx);
4094 if !this.selections.line_mode {
4095 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4096 for selection in &mut selections {
4097 if selection.is_empty() {
4098 let old_head = selection.head();
4099 let mut new_head =
4100 movement::left(&display_map, old_head.to_display_point(&display_map))
4101 .to_point(&display_map);
4102 if let Some((buffer, line_buffer_range)) = display_map
4103 .buffer_snapshot
4104 .buffer_line_for_row(old_head.row)
4105 {
4106 let indent_size =
4107 buffer.indent_size_for_line(line_buffer_range.start.row);
4108 let indent_len = match indent_size.kind {
4109 IndentKind::Space => {
4110 buffer.settings_at(line_buffer_range.start, cx).tab_size
4111 }
4112 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4113 };
4114 if old_head.column <= indent_size.len && old_head.column > 0 {
4115 let indent_len = indent_len.get();
4116 new_head = cmp::min(
4117 new_head,
4118 Point::new(
4119 old_head.row,
4120 ((old_head.column - 1) / indent_len) * indent_len,
4121 ),
4122 );
4123 }
4124 }
4125
4126 selection.set_head(new_head, SelectionGoal::None);
4127 }
4128 }
4129 }
4130
4131 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4132 this.insert("", cx);
4133 this.refresh_copilot_suggestions(true, cx);
4134 });
4135 }
4136
4137 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4138 self.transact(cx, |this, cx| {
4139 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4140 let line_mode = s.line_mode;
4141 s.move_with(|map, selection| {
4142 if selection.is_empty() && !line_mode {
4143 let cursor = movement::right(map, selection.head());
4144 selection.end = cursor;
4145 selection.reversed = true;
4146 selection.goal = SelectionGoal::None;
4147 }
4148 })
4149 });
4150 this.insert("", cx);
4151 this.refresh_copilot_suggestions(true, cx);
4152 });
4153 }
4154
4155 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4156 if self.move_to_prev_snippet_tabstop(cx) {
4157 return;
4158 }
4159
4160 self.outdent(&Outdent, cx);
4161 }
4162
4163 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4164 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4165 return;
4166 }
4167
4168 let mut selections = self.selections.all_adjusted(cx);
4169 let buffer = self.buffer.read(cx);
4170 let snapshot = buffer.snapshot(cx);
4171 let rows_iter = selections.iter().map(|s| s.head().row);
4172 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4173
4174 let mut edits = Vec::new();
4175 let mut prev_edited_row = 0;
4176 let mut row_delta = 0;
4177 for selection in &mut selections {
4178 if selection.start.row != prev_edited_row {
4179 row_delta = 0;
4180 }
4181 prev_edited_row = selection.end.row;
4182
4183 // If the selection is non-empty, then increase the indentation of the selected lines.
4184 if !selection.is_empty() {
4185 row_delta =
4186 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4187 continue;
4188 }
4189
4190 // If the selection is empty and the cursor is in the leading whitespace before the
4191 // suggested indentation, then auto-indent the line.
4192 let cursor = selection.head();
4193 let current_indent = snapshot.indent_size_for_line(cursor.row);
4194 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4195 if cursor.column < suggested_indent.len
4196 && cursor.column <= current_indent.len
4197 && current_indent.len <= suggested_indent.len
4198 {
4199 selection.start = Point::new(cursor.row, suggested_indent.len);
4200 selection.end = selection.start;
4201 if row_delta == 0 {
4202 edits.extend(Buffer::edit_for_indent_size_adjustment(
4203 cursor.row,
4204 current_indent,
4205 suggested_indent,
4206 ));
4207 row_delta = suggested_indent.len - current_indent.len;
4208 }
4209 continue;
4210 }
4211 }
4212
4213 // Accept copilot suggestion if there is only one selection and the cursor is not
4214 // in the leading whitespace.
4215 if self.selections.count() == 1
4216 && cursor.column >= current_indent.len
4217 && self.has_active_copilot_suggestion(cx)
4218 {
4219 self.accept_copilot_suggestion(cx);
4220 return;
4221 }
4222
4223 // Otherwise, insert a hard or soft tab.
4224 let settings = buffer.settings_at(cursor, cx);
4225 let tab_size = if settings.hard_tabs {
4226 IndentSize::tab()
4227 } else {
4228 let tab_size = settings.tab_size.get();
4229 let char_column = snapshot
4230 .text_for_range(Point::new(cursor.row, 0)..cursor)
4231 .flat_map(str::chars)
4232 .count()
4233 + row_delta as usize;
4234 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4235 IndentSize::spaces(chars_to_next_tab_stop)
4236 };
4237 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4238 selection.end = selection.start;
4239 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4240 row_delta += tab_size.len;
4241 }
4242
4243 self.transact(cx, |this, cx| {
4244 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4245 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4246 this.refresh_copilot_suggestions(true, cx);
4247 });
4248 }
4249
4250 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4251 let mut selections = self.selections.all::<Point>(cx);
4252 let mut prev_edited_row = 0;
4253 let mut row_delta = 0;
4254 let mut edits = Vec::new();
4255 let buffer = self.buffer.read(cx);
4256 let snapshot = buffer.snapshot(cx);
4257 for selection in &mut selections {
4258 if selection.start.row != prev_edited_row {
4259 row_delta = 0;
4260 }
4261 prev_edited_row = selection.end.row;
4262
4263 row_delta =
4264 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4265 }
4266
4267 self.transact(cx, |this, cx| {
4268 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4269 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4270 });
4271 }
4272
4273 fn indent_selection(
4274 buffer: &MultiBuffer,
4275 snapshot: &MultiBufferSnapshot,
4276 selection: &mut Selection<Point>,
4277 edits: &mut Vec<(Range<Point>, String)>,
4278 delta_for_start_row: u32,
4279 cx: &AppContext,
4280 ) -> u32 {
4281 let settings = buffer.settings_at(selection.start, cx);
4282 let tab_size = settings.tab_size.get();
4283 let indent_kind = if settings.hard_tabs {
4284 IndentKind::Tab
4285 } else {
4286 IndentKind::Space
4287 };
4288 let mut start_row = selection.start.row;
4289 let mut end_row = selection.end.row + 1;
4290
4291 // If a selection ends at the beginning of a line, don't indent
4292 // that last line.
4293 if selection.end.column == 0 {
4294 end_row -= 1;
4295 }
4296
4297 // Avoid re-indenting a row that has already been indented by a
4298 // previous selection, but still update this selection's column
4299 // to reflect that indentation.
4300 if delta_for_start_row > 0 {
4301 start_row += 1;
4302 selection.start.column += delta_for_start_row;
4303 if selection.end.row == selection.start.row {
4304 selection.end.column += delta_for_start_row;
4305 }
4306 }
4307
4308 let mut delta_for_end_row = 0;
4309 for row in start_row..end_row {
4310 let current_indent = snapshot.indent_size_for_line(row);
4311 let indent_delta = match (current_indent.kind, indent_kind) {
4312 (IndentKind::Space, IndentKind::Space) => {
4313 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4314 IndentSize::spaces(columns_to_next_tab_stop)
4315 }
4316 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4317 (_, IndentKind::Tab) => IndentSize::tab(),
4318 };
4319
4320 let row_start = Point::new(row, 0);
4321 edits.push((
4322 row_start..row_start,
4323 indent_delta.chars().collect::<String>(),
4324 ));
4325
4326 // Update this selection's endpoints to reflect the indentation.
4327 if row == selection.start.row {
4328 selection.start.column += indent_delta.len;
4329 }
4330 if row == selection.end.row {
4331 selection.end.column += indent_delta.len;
4332 delta_for_end_row = indent_delta.len;
4333 }
4334 }
4335
4336 if selection.start.row == selection.end.row {
4337 delta_for_start_row + delta_for_end_row
4338 } else {
4339 delta_for_end_row
4340 }
4341 }
4342
4343 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4344 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4345 let selections = self.selections.all::<Point>(cx);
4346 let mut deletion_ranges = Vec::new();
4347 let mut last_outdent = None;
4348 {
4349 let buffer = self.buffer.read(cx);
4350 let snapshot = buffer.snapshot(cx);
4351 for selection in &selections {
4352 let settings = buffer.settings_at(selection.start, cx);
4353 let tab_size = settings.tab_size.get();
4354 let mut rows = selection.spanned_rows(false, &display_map);
4355
4356 // Avoid re-outdenting a row that has already been outdented by a
4357 // previous selection.
4358 if let Some(last_row) = last_outdent {
4359 if last_row == rows.start {
4360 rows.start += 1;
4361 }
4362 }
4363
4364 for row in rows {
4365 let indent_size = snapshot.indent_size_for_line(row);
4366 if indent_size.len > 0 {
4367 let deletion_len = match indent_size.kind {
4368 IndentKind::Space => {
4369 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4370 if columns_to_prev_tab_stop == 0 {
4371 tab_size
4372 } else {
4373 columns_to_prev_tab_stop
4374 }
4375 }
4376 IndentKind::Tab => 1,
4377 };
4378 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4379 last_outdent = Some(row);
4380 }
4381 }
4382 }
4383 }
4384
4385 self.transact(cx, |this, cx| {
4386 this.buffer.update(cx, |buffer, cx| {
4387 let empty_str: Arc<str> = "".into();
4388 buffer.edit(
4389 deletion_ranges
4390 .into_iter()
4391 .map(|range| (range, empty_str.clone())),
4392 None,
4393 cx,
4394 );
4395 });
4396 let selections = this.selections.all::<usize>(cx);
4397 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4398 });
4399 }
4400
4401 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4403 let selections = self.selections.all::<Point>(cx);
4404
4405 let mut new_cursors = Vec::new();
4406 let mut edit_ranges = Vec::new();
4407 let mut selections = selections.iter().peekable();
4408 while let Some(selection) = selections.next() {
4409 let mut rows = selection.spanned_rows(false, &display_map);
4410 let goal_display_column = selection.head().to_display_point(&display_map).column();
4411
4412 // Accumulate contiguous regions of rows that we want to delete.
4413 while let Some(next_selection) = selections.peek() {
4414 let next_rows = next_selection.spanned_rows(false, &display_map);
4415 if next_rows.start <= rows.end {
4416 rows.end = next_rows.end;
4417 selections.next().unwrap();
4418 } else {
4419 break;
4420 }
4421 }
4422
4423 let buffer = &display_map.buffer_snapshot;
4424 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4425 let edit_end;
4426 let cursor_buffer_row;
4427 if buffer.max_point().row >= rows.end {
4428 // If there's a line after the range, delete the \n from the end of the row range
4429 // and position the cursor on the next line.
4430 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4431 cursor_buffer_row = rows.end;
4432 } else {
4433 // If there isn't a line after the range, delete the \n from the line before the
4434 // start of the row range and position the cursor there.
4435 edit_start = edit_start.saturating_sub(1);
4436 edit_end = buffer.len();
4437 cursor_buffer_row = rows.start.saturating_sub(1);
4438 }
4439
4440 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4441 *cursor.column_mut() =
4442 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4443
4444 new_cursors.push((
4445 selection.id,
4446 buffer.anchor_after(cursor.to_point(&display_map)),
4447 ));
4448 edit_ranges.push(edit_start..edit_end);
4449 }
4450
4451 self.transact(cx, |this, cx| {
4452 let buffer = this.buffer.update(cx, |buffer, cx| {
4453 let empty_str: Arc<str> = "".into();
4454 buffer.edit(
4455 edit_ranges
4456 .into_iter()
4457 .map(|range| (range, empty_str.clone())),
4458 None,
4459 cx,
4460 );
4461 buffer.snapshot(cx)
4462 });
4463 let new_selections = new_cursors
4464 .into_iter()
4465 .map(|(id, cursor)| {
4466 let cursor = cursor.to_point(&buffer);
4467 Selection {
4468 id,
4469 start: cursor,
4470 end: cursor,
4471 reversed: false,
4472 goal: SelectionGoal::None,
4473 }
4474 })
4475 .collect();
4476
4477 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4478 s.select(new_selections);
4479 });
4480 });
4481 }
4482
4483 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4484 let mut row_ranges = Vec::<Range<u32>>::new();
4485 for selection in self.selections.all::<Point>(cx) {
4486 let start = selection.start.row;
4487 let end = if selection.start.row == selection.end.row {
4488 selection.start.row + 1
4489 } else {
4490 selection.end.row
4491 };
4492
4493 if let Some(last_row_range) = row_ranges.last_mut() {
4494 if start <= last_row_range.end {
4495 last_row_range.end = end;
4496 continue;
4497 }
4498 }
4499 row_ranges.push(start..end);
4500 }
4501
4502 let snapshot = self.buffer.read(cx).snapshot(cx);
4503 let mut cursor_positions = Vec::new();
4504 for row_range in &row_ranges {
4505 let anchor = snapshot.anchor_before(Point::new(
4506 row_range.end - 1,
4507 snapshot.line_len(row_range.end - 1),
4508 ));
4509 cursor_positions.push(anchor.clone()..anchor);
4510 }
4511
4512 self.transact(cx, |this, cx| {
4513 for row_range in row_ranges.into_iter().rev() {
4514 for row in row_range.rev() {
4515 let end_of_line = Point::new(row, snapshot.line_len(row));
4516 let indent = snapshot.indent_size_for_line(row + 1);
4517 let start_of_next_line = Point::new(row + 1, indent.len);
4518
4519 let replace = if snapshot.line_len(row + 1) > indent.len {
4520 " "
4521 } else {
4522 ""
4523 };
4524
4525 this.buffer.update(cx, |buffer, cx| {
4526 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4527 });
4528 }
4529 }
4530
4531 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4532 s.select_anchor_ranges(cursor_positions)
4533 });
4534 });
4535 }
4536
4537 pub fn sort_lines_case_sensitive(
4538 &mut self,
4539 _: &SortLinesCaseSensitive,
4540 cx: &mut ViewContext<Self>,
4541 ) {
4542 self.manipulate_lines(cx, |lines| lines.sort())
4543 }
4544
4545 pub fn sort_lines_case_insensitive(
4546 &mut self,
4547 _: &SortLinesCaseInsensitive,
4548 cx: &mut ViewContext<Self>,
4549 ) {
4550 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4551 }
4552
4553 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4554 self.manipulate_lines(cx, |lines| lines.reverse())
4555 }
4556
4557 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4558 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4559 }
4560
4561 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4562 where
4563 Fn: FnMut(&mut [&str]),
4564 {
4565 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4566 let buffer = self.buffer.read(cx).snapshot(cx);
4567
4568 let mut edits = Vec::new();
4569
4570 let selections = self.selections.all::<Point>(cx);
4571 let mut selections = selections.iter().peekable();
4572 let mut contiguous_row_selections = Vec::new();
4573 let mut new_selections = Vec::new();
4574
4575 while let Some(selection) = selections.next() {
4576 let (start_row, end_row) = consume_contiguous_rows(
4577 &mut contiguous_row_selections,
4578 selection,
4579 &display_map,
4580 &mut selections,
4581 );
4582
4583 let start_point = Point::new(start_row, 0);
4584 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4585 let text = buffer
4586 .text_for_range(start_point..end_point)
4587 .collect::<String>();
4588 let mut lines = text.split("\n").collect_vec();
4589
4590 let lines_len = lines.len();
4591 callback(&mut lines);
4592
4593 // This is a current limitation with selections.
4594 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4595 debug_assert!(
4596 lines.len() == lines_len,
4597 "callback should not change the number of lines"
4598 );
4599
4600 edits.push((start_point..end_point, lines.join("\n")));
4601 let start_anchor = buffer.anchor_after(start_point);
4602 let end_anchor = buffer.anchor_before(end_point);
4603
4604 // Make selection and push
4605 new_selections.push(Selection {
4606 id: selection.id,
4607 start: start_anchor.to_offset(&buffer),
4608 end: end_anchor.to_offset(&buffer),
4609 goal: SelectionGoal::None,
4610 reversed: selection.reversed,
4611 });
4612 }
4613
4614 self.transact(cx, |this, cx| {
4615 this.buffer.update(cx, |buffer, cx| {
4616 buffer.edit(edits, None, cx);
4617 });
4618
4619 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4620 s.select(new_selections);
4621 });
4622
4623 this.request_autoscroll(Autoscroll::fit(), cx);
4624 });
4625 }
4626
4627 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4628 self.manipulate_text(cx, |text| text.to_uppercase())
4629 }
4630
4631 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4632 self.manipulate_text(cx, |text| text.to_lowercase())
4633 }
4634
4635 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4636 self.manipulate_text(cx, |text| {
4637 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4638 // https://github.com/rutrum/convert-case/issues/16
4639 text.split("\n")
4640 .map(|line| line.to_case(Case::Title))
4641 .join("\n")
4642 })
4643 }
4644
4645 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4646 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4647 }
4648
4649 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4650 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4651 }
4652
4653 pub fn convert_to_upper_camel_case(
4654 &mut self,
4655 _: &ConvertToUpperCamelCase,
4656 cx: &mut ViewContext<Self>,
4657 ) {
4658 self.manipulate_text(cx, |text| {
4659 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4660 // https://github.com/rutrum/convert-case/issues/16
4661 text.split("\n")
4662 .map(|line| line.to_case(Case::UpperCamel))
4663 .join("\n")
4664 })
4665 }
4666
4667 pub fn convert_to_lower_camel_case(
4668 &mut self,
4669 _: &ConvertToLowerCamelCase,
4670 cx: &mut ViewContext<Self>,
4671 ) {
4672 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4673 }
4674
4675 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4676 where
4677 Fn: FnMut(&str) -> String,
4678 {
4679 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4680 let buffer = self.buffer.read(cx).snapshot(cx);
4681
4682 let mut new_selections = Vec::new();
4683 let mut edits = Vec::new();
4684 let mut selection_adjustment = 0i32;
4685
4686 for selection in self.selections.all::<usize>(cx) {
4687 let selection_is_empty = selection.is_empty();
4688
4689 let (start, end) = if selection_is_empty {
4690 let word_range = movement::surrounding_word(
4691 &display_map,
4692 selection.start.to_display_point(&display_map),
4693 );
4694 let start = word_range.start.to_offset(&display_map, Bias::Left);
4695 let end = word_range.end.to_offset(&display_map, Bias::Left);
4696 (start, end)
4697 } else {
4698 (selection.start, selection.end)
4699 };
4700
4701 let text = buffer.text_for_range(start..end).collect::<String>();
4702 let old_length = text.len() as i32;
4703 let text = callback(&text);
4704
4705 new_selections.push(Selection {
4706 start: (start as i32 - selection_adjustment) as usize,
4707 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4708 goal: SelectionGoal::None,
4709 ..selection
4710 });
4711
4712 selection_adjustment += old_length - text.len() as i32;
4713
4714 edits.push((start..end, text));
4715 }
4716
4717 self.transact(cx, |this, cx| {
4718 this.buffer.update(cx, |buffer, cx| {
4719 buffer.edit(edits, None, cx);
4720 });
4721
4722 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4723 s.select(new_selections);
4724 });
4725
4726 this.request_autoscroll(Autoscroll::fit(), cx);
4727 });
4728 }
4729
4730 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4731 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4732 let buffer = &display_map.buffer_snapshot;
4733 let selections = self.selections.all::<Point>(cx);
4734
4735 let mut edits = Vec::new();
4736 let mut selections_iter = selections.iter().peekable();
4737 while let Some(selection) = selections_iter.next() {
4738 // Avoid duplicating the same lines twice.
4739 let mut rows = selection.spanned_rows(false, &display_map);
4740
4741 while let Some(next_selection) = selections_iter.peek() {
4742 let next_rows = next_selection.spanned_rows(false, &display_map);
4743 if next_rows.start < rows.end {
4744 rows.end = next_rows.end;
4745 selections_iter.next().unwrap();
4746 } else {
4747 break;
4748 }
4749 }
4750
4751 // Copy the text from the selected row region and splice it at the start of the region.
4752 let start = Point::new(rows.start, 0);
4753 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4754 let text = buffer
4755 .text_for_range(start..end)
4756 .chain(Some("\n"))
4757 .collect::<String>();
4758 edits.push((start..start, text));
4759 }
4760
4761 self.transact(cx, |this, cx| {
4762 this.buffer.update(cx, |buffer, cx| {
4763 buffer.edit(edits, None, cx);
4764 });
4765
4766 this.request_autoscroll(Autoscroll::fit(), cx);
4767 });
4768 }
4769
4770 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4772 let buffer = self.buffer.read(cx).snapshot(cx);
4773
4774 let mut edits = Vec::new();
4775 let mut unfold_ranges = Vec::new();
4776 let mut refold_ranges = Vec::new();
4777
4778 let selections = self.selections.all::<Point>(cx);
4779 let mut selections = selections.iter().peekable();
4780 let mut contiguous_row_selections = Vec::new();
4781 let mut new_selections = Vec::new();
4782
4783 while let Some(selection) = selections.next() {
4784 // Find all the selections that span a contiguous row range
4785 let (start_row, end_row) = consume_contiguous_rows(
4786 &mut contiguous_row_selections,
4787 selection,
4788 &display_map,
4789 &mut selections,
4790 );
4791
4792 // Move the text spanned by the row range to be before the line preceding the row range
4793 if start_row > 0 {
4794 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4795 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4796 let insertion_point = display_map
4797 .prev_line_boundary(Point::new(start_row - 1, 0))
4798 .0;
4799
4800 // Don't move lines across excerpts
4801 if buffer
4802 .excerpt_boundaries_in_range((
4803 Bound::Excluded(insertion_point),
4804 Bound::Included(range_to_move.end),
4805 ))
4806 .next()
4807 .is_none()
4808 {
4809 let text = buffer
4810 .text_for_range(range_to_move.clone())
4811 .flat_map(|s| s.chars())
4812 .skip(1)
4813 .chain(['\n'])
4814 .collect::<String>();
4815
4816 edits.push((
4817 buffer.anchor_after(range_to_move.start)
4818 ..buffer.anchor_before(range_to_move.end),
4819 String::new(),
4820 ));
4821 let insertion_anchor = buffer.anchor_after(insertion_point);
4822 edits.push((insertion_anchor..insertion_anchor, text));
4823
4824 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4825
4826 // Move selections up
4827 new_selections.extend(contiguous_row_selections.drain(..).map(
4828 |mut selection| {
4829 selection.start.row -= row_delta;
4830 selection.end.row -= row_delta;
4831 selection
4832 },
4833 ));
4834
4835 // Move folds up
4836 unfold_ranges.push(range_to_move.clone());
4837 for fold in display_map.folds_in_range(
4838 buffer.anchor_before(range_to_move.start)
4839 ..buffer.anchor_after(range_to_move.end),
4840 ) {
4841 let mut start = fold.range.start.to_point(&buffer);
4842 let mut end = fold.range.end.to_point(&buffer);
4843 start.row -= row_delta;
4844 end.row -= row_delta;
4845 refold_ranges.push(start..end);
4846 }
4847 }
4848 }
4849
4850 // If we didn't move line(s), preserve the existing selections
4851 new_selections.append(&mut contiguous_row_selections);
4852 }
4853
4854 self.transact(cx, |this, cx| {
4855 this.unfold_ranges(unfold_ranges, true, true, cx);
4856 this.buffer.update(cx, |buffer, cx| {
4857 for (range, text) in edits {
4858 buffer.edit([(range, text)], None, cx);
4859 }
4860 });
4861 this.fold_ranges(refold_ranges, true, cx);
4862 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4863 s.select(new_selections);
4864 })
4865 });
4866 }
4867
4868 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4869 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4870 let buffer = self.buffer.read(cx).snapshot(cx);
4871
4872 let mut edits = Vec::new();
4873 let mut unfold_ranges = Vec::new();
4874 let mut refold_ranges = Vec::new();
4875
4876 let selections = self.selections.all::<Point>(cx);
4877 let mut selections = selections.iter().peekable();
4878 let mut contiguous_row_selections = Vec::new();
4879 let mut new_selections = Vec::new();
4880
4881 while let Some(selection) = selections.next() {
4882 // Find all the selections that span a contiguous row range
4883 let (start_row, end_row) = consume_contiguous_rows(
4884 &mut contiguous_row_selections,
4885 selection,
4886 &display_map,
4887 &mut selections,
4888 );
4889
4890 // Move the text spanned by the row range to be after the last line of the row range
4891 if end_row <= buffer.max_point().row {
4892 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4893 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4894
4895 // Don't move lines across excerpt boundaries
4896 if buffer
4897 .excerpt_boundaries_in_range((
4898 Bound::Excluded(range_to_move.start),
4899 Bound::Included(insertion_point),
4900 ))
4901 .next()
4902 .is_none()
4903 {
4904 let mut text = String::from("\n");
4905 text.extend(buffer.text_for_range(range_to_move.clone()));
4906 text.pop(); // Drop trailing newline
4907 edits.push((
4908 buffer.anchor_after(range_to_move.start)
4909 ..buffer.anchor_before(range_to_move.end),
4910 String::new(),
4911 ));
4912 let insertion_anchor = buffer.anchor_after(insertion_point);
4913 edits.push((insertion_anchor..insertion_anchor, text));
4914
4915 let row_delta = insertion_point.row - range_to_move.end.row + 1;
4916
4917 // Move selections down
4918 new_selections.extend(contiguous_row_selections.drain(..).map(
4919 |mut selection| {
4920 selection.start.row += row_delta;
4921 selection.end.row += row_delta;
4922 selection
4923 },
4924 ));
4925
4926 // Move folds down
4927 unfold_ranges.push(range_to_move.clone());
4928 for fold in display_map.folds_in_range(
4929 buffer.anchor_before(range_to_move.start)
4930 ..buffer.anchor_after(range_to_move.end),
4931 ) {
4932 let mut start = fold.range.start.to_point(&buffer);
4933 let mut end = fold.range.end.to_point(&buffer);
4934 start.row += row_delta;
4935 end.row += row_delta;
4936 refold_ranges.push(start..end);
4937 }
4938 }
4939 }
4940
4941 // If we didn't move line(s), preserve the existing selections
4942 new_selections.append(&mut contiguous_row_selections);
4943 }
4944
4945 self.transact(cx, |this, cx| {
4946 this.unfold_ranges(unfold_ranges, true, true, cx);
4947 this.buffer.update(cx, |buffer, cx| {
4948 for (range, text) in edits {
4949 buffer.edit([(range, text)], None, cx);
4950 }
4951 });
4952 this.fold_ranges(refold_ranges, true, cx);
4953 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
4954 });
4955 }
4956
4957 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
4958 let text_layout_details = &self.text_layout_details(cx);
4959 self.transact(cx, |this, cx| {
4960 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4961 let mut edits: Vec<(Range<usize>, String)> = Default::default();
4962 let line_mode = s.line_mode;
4963 s.move_with(|display_map, selection| {
4964 if !selection.is_empty() || line_mode {
4965 return;
4966 }
4967
4968 let mut head = selection.head();
4969 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
4970 if head.column() == display_map.line_len(head.row()) {
4971 transpose_offset = display_map
4972 .buffer_snapshot
4973 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
4974 }
4975
4976 if transpose_offset == 0 {
4977 return;
4978 }
4979
4980 *head.column_mut() += 1;
4981 head = display_map.clip_point(head, Bias::Right);
4982 let goal = SelectionGoal::HorizontalPosition(
4983 display_map
4984 .x_for_display_point(head, &text_layout_details)
4985 .into(),
4986 );
4987 selection.collapse_to(head, goal);
4988
4989 let transpose_start = display_map
4990 .buffer_snapshot
4991 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
4992 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
4993 let transpose_end = display_map
4994 .buffer_snapshot
4995 .clip_offset(transpose_offset + 1, Bias::Right);
4996 if let Some(ch) =
4997 display_map.buffer_snapshot.chars_at(transpose_start).next()
4998 {
4999 edits.push((transpose_start..transpose_offset, String::new()));
5000 edits.push((transpose_end..transpose_end, ch.to_string()));
5001 }
5002 }
5003 });
5004 edits
5005 });
5006 this.buffer
5007 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5008 let selections = this.selections.all::<usize>(cx);
5009 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5010 s.select(selections);
5011 });
5012 });
5013 }
5014
5015 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5016 let mut text = String::new();
5017 let buffer = self.buffer.read(cx).snapshot(cx);
5018 let mut selections = self.selections.all::<Point>(cx);
5019 let mut clipboard_selections = Vec::with_capacity(selections.len());
5020 {
5021 let max_point = buffer.max_point();
5022 let mut is_first = true;
5023 for selection in &mut selections {
5024 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5025 if is_entire_line {
5026 selection.start = Point::new(selection.start.row, 0);
5027 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5028 selection.goal = SelectionGoal::None;
5029 }
5030 if is_first {
5031 is_first = false;
5032 } else {
5033 text += "\n";
5034 }
5035 let mut len = 0;
5036 for chunk in buffer.text_for_range(selection.start..selection.end) {
5037 text.push_str(chunk);
5038 len += chunk.len();
5039 }
5040 clipboard_selections.push(ClipboardSelection {
5041 len,
5042 is_entire_line,
5043 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5044 });
5045 }
5046 }
5047
5048 self.transact(cx, |this, cx| {
5049 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5050 s.select(selections);
5051 });
5052 this.insert("", cx);
5053 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5054 });
5055 }
5056
5057 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5058 let selections = self.selections.all::<Point>(cx);
5059 let buffer = self.buffer.read(cx).read(cx);
5060 let mut text = String::new();
5061
5062 let mut clipboard_selections = Vec::with_capacity(selections.len());
5063 {
5064 let max_point = buffer.max_point();
5065 let mut is_first = true;
5066 for selection in selections.iter() {
5067 let mut start = selection.start;
5068 let mut end = selection.end;
5069 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5070 if is_entire_line {
5071 start = Point::new(start.row, 0);
5072 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5073 }
5074 if is_first {
5075 is_first = false;
5076 } else {
5077 text += "\n";
5078 }
5079 let mut len = 0;
5080 for chunk in buffer.text_for_range(start..end) {
5081 text.push_str(chunk);
5082 len += chunk.len();
5083 }
5084 clipboard_selections.push(ClipboardSelection {
5085 len,
5086 is_entire_line,
5087 first_line_indent: buffer.indent_size_for_line(start.row).len,
5088 });
5089 }
5090 }
5091
5092 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5093 }
5094
5095 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5096 if self.read_only(cx) {
5097 return;
5098 }
5099
5100 self.transact(cx, |this, cx| {
5101 if let Some(item) = cx.read_from_clipboard() {
5102 let clipboard_text = Cow::Borrowed(item.text());
5103 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5104 let old_selections = this.selections.all::<usize>(cx);
5105 let all_selections_were_entire_line =
5106 clipboard_selections.iter().all(|s| s.is_entire_line);
5107 let first_selection_indent_column =
5108 clipboard_selections.first().map(|s| s.first_line_indent);
5109 if clipboard_selections.len() != old_selections.len() {
5110 clipboard_selections.drain(..);
5111 }
5112
5113 this.buffer.update(cx, |buffer, cx| {
5114 let snapshot = buffer.read(cx);
5115 let mut start_offset = 0;
5116 let mut edits = Vec::new();
5117 let mut original_indent_columns = Vec::new();
5118 let line_mode = this.selections.line_mode;
5119 for (ix, selection) in old_selections.iter().enumerate() {
5120 let to_insert;
5121 let entire_line;
5122 let original_indent_column;
5123 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5124 let end_offset = start_offset + clipboard_selection.len;
5125 to_insert = &clipboard_text[start_offset..end_offset];
5126 entire_line = clipboard_selection.is_entire_line;
5127 start_offset = end_offset + 1;
5128 original_indent_column =
5129 Some(clipboard_selection.first_line_indent);
5130 } else {
5131 to_insert = clipboard_text.as_str();
5132 entire_line = all_selections_were_entire_line;
5133 original_indent_column = first_selection_indent_column
5134 }
5135
5136 // If the corresponding selection was empty when this slice of the
5137 // clipboard text was written, then the entire line containing the
5138 // selection was copied. If this selection is also currently empty,
5139 // then paste the line before the current line of the buffer.
5140 let range = if selection.is_empty() && !line_mode && entire_line {
5141 let column = selection.start.to_point(&snapshot).column as usize;
5142 let line_start = selection.start - column;
5143 line_start..line_start
5144 } else {
5145 selection.range()
5146 };
5147
5148 edits.push((range, to_insert));
5149 original_indent_columns.extend(original_indent_column);
5150 }
5151 drop(snapshot);
5152
5153 buffer.edit(
5154 edits,
5155 Some(AutoindentMode::Block {
5156 original_indent_columns,
5157 }),
5158 cx,
5159 );
5160 });
5161
5162 let selections = this.selections.all::<usize>(cx);
5163 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5164 } else {
5165 this.insert(&clipboard_text, cx);
5166 }
5167 }
5168 });
5169 }
5170
5171 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5172 if self.read_only(cx) {
5173 return;
5174 }
5175
5176 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5177 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5178 self.change_selections(None, cx, |s| {
5179 s.select_anchors(selections.to_vec());
5180 });
5181 }
5182 self.request_autoscroll(Autoscroll::fit(), cx);
5183 self.unmark_text(cx);
5184 self.refresh_copilot_suggestions(true, cx);
5185 cx.emit(EditorEvent::Edited);
5186 }
5187 }
5188
5189 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5190 if self.read_only(cx) {
5191 return;
5192 }
5193
5194 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5195 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5196 {
5197 self.change_selections(None, cx, |s| {
5198 s.select_anchors(selections.to_vec());
5199 });
5200 }
5201 self.request_autoscroll(Autoscroll::fit(), cx);
5202 self.unmark_text(cx);
5203 self.refresh_copilot_suggestions(true, cx);
5204 cx.emit(EditorEvent::Edited);
5205 }
5206 }
5207
5208 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5209 self.buffer
5210 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5211 }
5212
5213 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5214 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5215 let line_mode = s.line_mode;
5216 s.move_with(|map, selection| {
5217 let cursor = if selection.is_empty() && !line_mode {
5218 movement::left(map, selection.start)
5219 } else {
5220 selection.start
5221 };
5222 selection.collapse_to(cursor, SelectionGoal::None);
5223 });
5224 })
5225 }
5226
5227 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5228 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5229 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5230 })
5231 }
5232
5233 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5235 let line_mode = s.line_mode;
5236 s.move_with(|map, selection| {
5237 let cursor = if selection.is_empty() && !line_mode {
5238 movement::right(map, selection.end)
5239 } else {
5240 selection.end
5241 };
5242 selection.collapse_to(cursor, SelectionGoal::None)
5243 });
5244 })
5245 }
5246
5247 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5248 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5249 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5250 })
5251 }
5252
5253 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5254 if self.take_rename(true, cx).is_some() {
5255 return;
5256 }
5257
5258 if matches!(self.mode, EditorMode::SingleLine) {
5259 cx.propagate();
5260 return;
5261 }
5262
5263 let text_layout_details = &self.text_layout_details(cx);
5264
5265 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5266 let line_mode = s.line_mode;
5267 s.move_with(|map, selection| {
5268 if !selection.is_empty() && !line_mode {
5269 selection.goal = SelectionGoal::None;
5270 }
5271 let (cursor, goal) = movement::up(
5272 map,
5273 selection.start,
5274 selection.goal,
5275 false,
5276 &text_layout_details,
5277 );
5278 selection.collapse_to(cursor, goal);
5279 });
5280 })
5281 }
5282
5283 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5284 if self.take_rename(true, cx).is_some() {
5285 return;
5286 }
5287
5288 if matches!(self.mode, EditorMode::SingleLine) {
5289 cx.propagate();
5290 return;
5291 }
5292
5293 let row_count = if let Some(row_count) = self.visible_line_count() {
5294 row_count as u32 - 1
5295 } else {
5296 return;
5297 };
5298
5299 let autoscroll = if action.center_cursor {
5300 Autoscroll::center()
5301 } else {
5302 Autoscroll::fit()
5303 };
5304
5305 let text_layout_details = &self.text_layout_details(cx);
5306
5307 self.change_selections(Some(autoscroll), cx, |s| {
5308 let line_mode = s.line_mode;
5309 s.move_with(|map, selection| {
5310 if !selection.is_empty() && !line_mode {
5311 selection.goal = SelectionGoal::None;
5312 }
5313 let (cursor, goal) = movement::up_by_rows(
5314 map,
5315 selection.end,
5316 row_count,
5317 selection.goal,
5318 false,
5319 &text_layout_details,
5320 );
5321 selection.collapse_to(cursor, goal);
5322 });
5323 });
5324 }
5325
5326 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5327 let text_layout_details = &self.text_layout_details(cx);
5328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5329 s.move_heads_with(|map, head, goal| {
5330 movement::up(map, head, goal, false, &text_layout_details)
5331 })
5332 })
5333 }
5334
5335 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5336 self.take_rename(true, cx);
5337
5338 if self.mode == EditorMode::SingleLine {
5339 cx.propagate();
5340 return;
5341 }
5342
5343 let text_layout_details = &self.text_layout_details(cx);
5344 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5345 let line_mode = s.line_mode;
5346 s.move_with(|map, selection| {
5347 if !selection.is_empty() && !line_mode {
5348 selection.goal = SelectionGoal::None;
5349 }
5350 let (cursor, goal) = movement::down(
5351 map,
5352 selection.end,
5353 selection.goal,
5354 false,
5355 &text_layout_details,
5356 );
5357 selection.collapse_to(cursor, goal);
5358 });
5359 });
5360 }
5361
5362 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5363 if self.take_rename(true, cx).is_some() {
5364 return;
5365 }
5366
5367 if self
5368 .context_menu
5369 .write()
5370 .as_mut()
5371 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5372 .unwrap_or(false)
5373 {
5374 return;
5375 }
5376
5377 if matches!(self.mode, EditorMode::SingleLine) {
5378 cx.propagate();
5379 return;
5380 }
5381
5382 let row_count = if let Some(row_count) = self.visible_line_count() {
5383 row_count as u32 - 1
5384 } else {
5385 return;
5386 };
5387
5388 let autoscroll = if action.center_cursor {
5389 Autoscroll::center()
5390 } else {
5391 Autoscroll::fit()
5392 };
5393
5394 let text_layout_details = &self.text_layout_details(cx);
5395 self.change_selections(Some(autoscroll), cx, |s| {
5396 let line_mode = s.line_mode;
5397 s.move_with(|map, selection| {
5398 if !selection.is_empty() && !line_mode {
5399 selection.goal = SelectionGoal::None;
5400 }
5401 let (cursor, goal) = movement::down_by_rows(
5402 map,
5403 selection.end,
5404 row_count,
5405 selection.goal,
5406 false,
5407 &text_layout_details,
5408 );
5409 selection.collapse_to(cursor, goal);
5410 });
5411 });
5412 }
5413
5414 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5415 let text_layout_details = &self.text_layout_details(cx);
5416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5417 s.move_heads_with(|map, head, goal| {
5418 movement::down(map, head, goal, false, &text_layout_details)
5419 })
5420 });
5421 }
5422
5423 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5424 if let Some(context_menu) = self.context_menu.write().as_mut() {
5425 context_menu.select_first(self.project.as_ref(), cx);
5426 }
5427 }
5428
5429 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5430 if let Some(context_menu) = self.context_menu.write().as_mut() {
5431 context_menu.select_prev(self.project.as_ref(), cx);
5432 }
5433 }
5434
5435 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5436 if let Some(context_menu) = self.context_menu.write().as_mut() {
5437 context_menu.select_next(self.project.as_ref(), cx);
5438 }
5439 }
5440
5441 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5442 if let Some(context_menu) = self.context_menu.write().as_mut() {
5443 context_menu.select_last(self.project.as_ref(), cx);
5444 }
5445 }
5446
5447 pub fn move_to_previous_word_start(
5448 &mut self,
5449 _: &MoveToPreviousWordStart,
5450 cx: &mut ViewContext<Self>,
5451 ) {
5452 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5453 s.move_cursors_with(|map, head, _| {
5454 (
5455 movement::previous_word_start(map, head),
5456 SelectionGoal::None,
5457 )
5458 });
5459 })
5460 }
5461
5462 pub fn move_to_previous_subword_start(
5463 &mut self,
5464 _: &MoveToPreviousSubwordStart,
5465 cx: &mut ViewContext<Self>,
5466 ) {
5467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5468 s.move_cursors_with(|map, head, _| {
5469 (
5470 movement::previous_subword_start(map, head),
5471 SelectionGoal::None,
5472 )
5473 });
5474 })
5475 }
5476
5477 pub fn select_to_previous_word_start(
5478 &mut self,
5479 _: &SelectToPreviousWordStart,
5480 cx: &mut ViewContext<Self>,
5481 ) {
5482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5483 s.move_heads_with(|map, head, _| {
5484 (
5485 movement::previous_word_start(map, head),
5486 SelectionGoal::None,
5487 )
5488 });
5489 })
5490 }
5491
5492 pub fn select_to_previous_subword_start(
5493 &mut self,
5494 _: &SelectToPreviousSubwordStart,
5495 cx: &mut ViewContext<Self>,
5496 ) {
5497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5498 s.move_heads_with(|map, head, _| {
5499 (
5500 movement::previous_subword_start(map, head),
5501 SelectionGoal::None,
5502 )
5503 });
5504 })
5505 }
5506
5507 pub fn delete_to_previous_word_start(
5508 &mut self,
5509 _: &DeleteToPreviousWordStart,
5510 cx: &mut ViewContext<Self>,
5511 ) {
5512 self.transact(cx, |this, cx| {
5513 this.select_autoclose_pair(cx);
5514 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5515 let line_mode = s.line_mode;
5516 s.move_with(|map, selection| {
5517 if selection.is_empty() && !line_mode {
5518 let cursor = movement::previous_word_start(map, selection.head());
5519 selection.set_head(cursor, SelectionGoal::None);
5520 }
5521 });
5522 });
5523 this.insert("", cx);
5524 });
5525 }
5526
5527 pub fn delete_to_previous_subword_start(
5528 &mut self,
5529 _: &DeleteToPreviousSubwordStart,
5530 cx: &mut ViewContext<Self>,
5531 ) {
5532 self.transact(cx, |this, cx| {
5533 this.select_autoclose_pair(cx);
5534 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5535 let line_mode = s.line_mode;
5536 s.move_with(|map, selection| {
5537 if selection.is_empty() && !line_mode {
5538 let cursor = movement::previous_subword_start(map, selection.head());
5539 selection.set_head(cursor, SelectionGoal::None);
5540 }
5541 });
5542 });
5543 this.insert("", cx);
5544 });
5545 }
5546
5547 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5549 s.move_cursors_with(|map, head, _| {
5550 (movement::next_word_end(map, head), SelectionGoal::None)
5551 });
5552 })
5553 }
5554
5555 pub fn move_to_next_subword_end(
5556 &mut self,
5557 _: &MoveToNextSubwordEnd,
5558 cx: &mut ViewContext<Self>,
5559 ) {
5560 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5561 s.move_cursors_with(|map, head, _| {
5562 (movement::next_subword_end(map, head), SelectionGoal::None)
5563 });
5564 })
5565 }
5566
5567 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5568 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5569 s.move_heads_with(|map, head, _| {
5570 (movement::next_word_end(map, head), SelectionGoal::None)
5571 });
5572 })
5573 }
5574
5575 pub fn select_to_next_subword_end(
5576 &mut self,
5577 _: &SelectToNextSubwordEnd,
5578 cx: &mut ViewContext<Self>,
5579 ) {
5580 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5581 s.move_heads_with(|map, head, _| {
5582 (movement::next_subword_end(map, head), SelectionGoal::None)
5583 });
5584 })
5585 }
5586
5587 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5588 self.transact(cx, |this, cx| {
5589 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5590 let line_mode = s.line_mode;
5591 s.move_with(|map, selection| {
5592 if selection.is_empty() && !line_mode {
5593 let cursor = movement::next_word_end(map, selection.head());
5594 selection.set_head(cursor, SelectionGoal::None);
5595 }
5596 });
5597 });
5598 this.insert("", cx);
5599 });
5600 }
5601
5602 pub fn delete_to_next_subword_end(
5603 &mut self,
5604 _: &DeleteToNextSubwordEnd,
5605 cx: &mut ViewContext<Self>,
5606 ) {
5607 self.transact(cx, |this, cx| {
5608 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5609 s.move_with(|map, selection| {
5610 if selection.is_empty() {
5611 let cursor = movement::next_subword_end(map, selection.head());
5612 selection.set_head(cursor, SelectionGoal::None);
5613 }
5614 });
5615 });
5616 this.insert("", cx);
5617 });
5618 }
5619
5620 pub fn move_to_beginning_of_line(
5621 &mut self,
5622 _: &MoveToBeginningOfLine,
5623 cx: &mut ViewContext<Self>,
5624 ) {
5625 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5626 s.move_cursors_with(|map, head, _| {
5627 (
5628 movement::indented_line_beginning(map, head, true),
5629 SelectionGoal::None,
5630 )
5631 });
5632 })
5633 }
5634
5635 pub fn select_to_beginning_of_line(
5636 &mut self,
5637 action: &SelectToBeginningOfLine,
5638 cx: &mut ViewContext<Self>,
5639 ) {
5640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5641 s.move_heads_with(|map, head, _| {
5642 (
5643 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5644 SelectionGoal::None,
5645 )
5646 });
5647 });
5648 }
5649
5650 pub fn delete_to_beginning_of_line(
5651 &mut self,
5652 _: &DeleteToBeginningOfLine,
5653 cx: &mut ViewContext<Self>,
5654 ) {
5655 self.transact(cx, |this, cx| {
5656 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5657 s.move_with(|_, selection| {
5658 selection.reversed = true;
5659 });
5660 });
5661
5662 this.select_to_beginning_of_line(
5663 &SelectToBeginningOfLine {
5664 stop_at_soft_wraps: false,
5665 },
5666 cx,
5667 );
5668 this.backspace(&Backspace, cx);
5669 });
5670 }
5671
5672 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5674 s.move_cursors_with(|map, head, _| {
5675 (movement::line_end(map, head, true), SelectionGoal::None)
5676 });
5677 })
5678 }
5679
5680 pub fn select_to_end_of_line(
5681 &mut self,
5682 action: &SelectToEndOfLine,
5683 cx: &mut ViewContext<Self>,
5684 ) {
5685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5686 s.move_heads_with(|map, head, _| {
5687 (
5688 movement::line_end(map, head, action.stop_at_soft_wraps),
5689 SelectionGoal::None,
5690 )
5691 });
5692 })
5693 }
5694
5695 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5696 self.transact(cx, |this, cx| {
5697 this.select_to_end_of_line(
5698 &SelectToEndOfLine {
5699 stop_at_soft_wraps: false,
5700 },
5701 cx,
5702 );
5703 this.delete(&Delete, cx);
5704 });
5705 }
5706
5707 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5708 self.transact(cx, |this, cx| {
5709 this.select_to_end_of_line(
5710 &SelectToEndOfLine {
5711 stop_at_soft_wraps: false,
5712 },
5713 cx,
5714 );
5715 this.cut(&Cut, cx);
5716 });
5717 }
5718
5719 pub fn move_to_start_of_paragraph(
5720 &mut self,
5721 _: &MoveToStartOfParagraph,
5722 cx: &mut ViewContext<Self>,
5723 ) {
5724 if matches!(self.mode, EditorMode::SingleLine) {
5725 cx.propagate();
5726 return;
5727 }
5728
5729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5730 s.move_with(|map, selection| {
5731 selection.collapse_to(
5732 movement::start_of_paragraph(map, selection.head(), 1),
5733 SelectionGoal::None,
5734 )
5735 });
5736 })
5737 }
5738
5739 pub fn move_to_end_of_paragraph(
5740 &mut self,
5741 _: &MoveToEndOfParagraph,
5742 cx: &mut ViewContext<Self>,
5743 ) {
5744 if matches!(self.mode, EditorMode::SingleLine) {
5745 cx.propagate();
5746 return;
5747 }
5748
5749 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5750 s.move_with(|map, selection| {
5751 selection.collapse_to(
5752 movement::end_of_paragraph(map, selection.head(), 1),
5753 SelectionGoal::None,
5754 )
5755 });
5756 })
5757 }
5758
5759 pub fn select_to_start_of_paragraph(
5760 &mut self,
5761 _: &SelectToStartOfParagraph,
5762 cx: &mut ViewContext<Self>,
5763 ) {
5764 if matches!(self.mode, EditorMode::SingleLine) {
5765 cx.propagate();
5766 return;
5767 }
5768
5769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5770 s.move_heads_with(|map, head, _| {
5771 (
5772 movement::start_of_paragraph(map, head, 1),
5773 SelectionGoal::None,
5774 )
5775 });
5776 })
5777 }
5778
5779 pub fn select_to_end_of_paragraph(
5780 &mut self,
5781 _: &SelectToEndOfParagraph,
5782 cx: &mut ViewContext<Self>,
5783 ) {
5784 if matches!(self.mode, EditorMode::SingleLine) {
5785 cx.propagate();
5786 return;
5787 }
5788
5789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5790 s.move_heads_with(|map, head, _| {
5791 (
5792 movement::end_of_paragraph(map, head, 1),
5793 SelectionGoal::None,
5794 )
5795 });
5796 })
5797 }
5798
5799 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5800 if matches!(self.mode, EditorMode::SingleLine) {
5801 cx.propagate();
5802 return;
5803 }
5804
5805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5806 s.select_ranges(vec![0..0]);
5807 });
5808 }
5809
5810 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5811 let mut selection = self.selections.last::<Point>(cx);
5812 selection.set_head(Point::zero(), SelectionGoal::None);
5813
5814 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5815 s.select(vec![selection]);
5816 });
5817 }
5818
5819 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5820 if matches!(self.mode, EditorMode::SingleLine) {
5821 cx.propagate();
5822 return;
5823 }
5824
5825 let cursor = self.buffer.read(cx).read(cx).len();
5826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5827 s.select_ranges(vec![cursor..cursor])
5828 });
5829 }
5830
5831 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5832 self.nav_history = nav_history;
5833 }
5834
5835 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5836 self.nav_history.as_ref()
5837 }
5838
5839 fn push_to_nav_history(
5840 &mut self,
5841 cursor_anchor: Anchor,
5842 new_position: Option<Point>,
5843 cx: &mut ViewContext<Self>,
5844 ) {
5845 if let Some(nav_history) = self.nav_history.as_mut() {
5846 let buffer = self.buffer.read(cx).read(cx);
5847 let cursor_position = cursor_anchor.to_point(&buffer);
5848 let scroll_state = self.scroll_manager.anchor();
5849 let scroll_top_row = scroll_state.top_row(&buffer);
5850 drop(buffer);
5851
5852 if let Some(new_position) = new_position {
5853 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
5854 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
5855 return;
5856 }
5857 }
5858
5859 nav_history.push(
5860 Some(NavigationData {
5861 cursor_anchor,
5862 cursor_position,
5863 scroll_anchor: scroll_state,
5864 scroll_top_row,
5865 }),
5866 cx,
5867 );
5868 }
5869 }
5870
5871 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
5872 let buffer = self.buffer.read(cx).snapshot(cx);
5873 let mut selection = self.selections.first::<usize>(cx);
5874 selection.set_head(buffer.len(), SelectionGoal::None);
5875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5876 s.select(vec![selection]);
5877 });
5878 }
5879
5880 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
5881 let end = self.buffer.read(cx).read(cx).len();
5882 self.change_selections(None, cx, |s| {
5883 s.select_ranges(vec![0..end]);
5884 });
5885 }
5886
5887 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
5888 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5889 let mut selections = self.selections.all::<Point>(cx);
5890 let max_point = display_map.buffer_snapshot.max_point();
5891 for selection in &mut selections {
5892 let rows = selection.spanned_rows(true, &display_map);
5893 selection.start = Point::new(rows.start, 0);
5894 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
5895 selection.reversed = false;
5896 }
5897 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5898 s.select(selections);
5899 });
5900 }
5901
5902 pub fn split_selection_into_lines(
5903 &mut self,
5904 _: &SplitSelectionIntoLines,
5905 cx: &mut ViewContext<Self>,
5906 ) {
5907 let mut to_unfold = Vec::new();
5908 let mut new_selection_ranges = Vec::new();
5909 {
5910 let selections = self.selections.all::<Point>(cx);
5911 let buffer = self.buffer.read(cx).read(cx);
5912 for selection in selections {
5913 for row in selection.start.row..selection.end.row {
5914 let cursor = Point::new(row, buffer.line_len(row));
5915 new_selection_ranges.push(cursor..cursor);
5916 }
5917 new_selection_ranges.push(selection.end..selection.end);
5918 to_unfold.push(selection.start..selection.end);
5919 }
5920 }
5921 self.unfold_ranges(to_unfold, true, true, cx);
5922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5923 s.select_ranges(new_selection_ranges);
5924 });
5925 }
5926
5927 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
5928 self.add_selection(true, cx);
5929 }
5930
5931 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
5932 self.add_selection(false, cx);
5933 }
5934
5935 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
5936 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5937 let mut selections = self.selections.all::<Point>(cx);
5938 let text_layout_details = self.text_layout_details(cx);
5939 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
5940 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
5941 let range = oldest_selection.display_range(&display_map).sorted();
5942
5943 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
5944 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
5945 let positions = start_x.min(end_x)..start_x.max(end_x);
5946
5947 selections.clear();
5948 let mut stack = Vec::new();
5949 for row in range.start.row()..=range.end.row() {
5950 if let Some(selection) = self.selections.build_columnar_selection(
5951 &display_map,
5952 row,
5953 &positions,
5954 oldest_selection.reversed,
5955 &text_layout_details,
5956 ) {
5957 stack.push(selection.id);
5958 selections.push(selection);
5959 }
5960 }
5961
5962 if above {
5963 stack.reverse();
5964 }
5965
5966 AddSelectionsState { above, stack }
5967 });
5968
5969 let last_added_selection = *state.stack.last().unwrap();
5970 let mut new_selections = Vec::new();
5971 if above == state.above {
5972 let end_row = if above {
5973 0
5974 } else {
5975 display_map.max_point().row()
5976 };
5977
5978 'outer: for selection in selections {
5979 if selection.id == last_added_selection {
5980 let range = selection.display_range(&display_map).sorted();
5981 debug_assert_eq!(range.start.row(), range.end.row());
5982 let mut row = range.start.row();
5983 let positions =
5984 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
5985 px(start)..px(end)
5986 } else {
5987 let start_x =
5988 display_map.x_for_display_point(range.start, &text_layout_details);
5989 let end_x =
5990 display_map.x_for_display_point(range.end, &text_layout_details);
5991 start_x.min(end_x)..start_x.max(end_x)
5992 };
5993
5994 while row != end_row {
5995 if above {
5996 row -= 1;
5997 } else {
5998 row += 1;
5999 }
6000
6001 if let Some(new_selection) = self.selections.build_columnar_selection(
6002 &display_map,
6003 row,
6004 &positions,
6005 selection.reversed,
6006 &text_layout_details,
6007 ) {
6008 state.stack.push(new_selection.id);
6009 if above {
6010 new_selections.push(new_selection);
6011 new_selections.push(selection);
6012 } else {
6013 new_selections.push(selection);
6014 new_selections.push(new_selection);
6015 }
6016
6017 continue 'outer;
6018 }
6019 }
6020 }
6021
6022 new_selections.push(selection);
6023 }
6024 } else {
6025 new_selections = selections;
6026 new_selections.retain(|s| s.id != last_added_selection);
6027 state.stack.pop();
6028 }
6029
6030 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6031 s.select(new_selections);
6032 });
6033 if state.stack.len() > 1 {
6034 self.add_selections_state = Some(state);
6035 }
6036 }
6037
6038 pub fn select_next_match_internal(
6039 &mut self,
6040 display_map: &DisplaySnapshot,
6041 replace_newest: bool,
6042 autoscroll: Option<Autoscroll>,
6043 cx: &mut ViewContext<Self>,
6044 ) -> Result<()> {
6045 fn select_next_match_ranges(
6046 this: &mut Editor,
6047 range: Range<usize>,
6048 replace_newest: bool,
6049 auto_scroll: Option<Autoscroll>,
6050 cx: &mut ViewContext<Editor>,
6051 ) {
6052 this.unfold_ranges([range.clone()], false, true, cx);
6053 this.change_selections(auto_scroll, cx, |s| {
6054 if replace_newest {
6055 s.delete(s.newest_anchor().id);
6056 }
6057 s.insert_range(range.clone());
6058 });
6059 }
6060
6061 let buffer = &display_map.buffer_snapshot;
6062 let mut selections = self.selections.all::<usize>(cx);
6063 if let Some(mut select_next_state) = self.select_next_state.take() {
6064 let query = &select_next_state.query;
6065 if !select_next_state.done {
6066 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6067 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6068 let mut next_selected_range = None;
6069
6070 let bytes_after_last_selection =
6071 buffer.bytes_in_range(last_selection.end..buffer.len());
6072 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6073 let query_matches = query
6074 .stream_find_iter(bytes_after_last_selection)
6075 .map(|result| (last_selection.end, result))
6076 .chain(
6077 query
6078 .stream_find_iter(bytes_before_first_selection)
6079 .map(|result| (0, result)),
6080 );
6081
6082 for (start_offset, query_match) in query_matches {
6083 let query_match = query_match.unwrap(); // can only fail due to I/O
6084 let offset_range =
6085 start_offset + query_match.start()..start_offset + query_match.end();
6086 let display_range = offset_range.start.to_display_point(&display_map)
6087 ..offset_range.end.to_display_point(&display_map);
6088
6089 if !select_next_state.wordwise
6090 || (!movement::is_inside_word(&display_map, display_range.start)
6091 && !movement::is_inside_word(&display_map, display_range.end))
6092 {
6093 if selections
6094 .iter()
6095 .find(|selection| selection.range().overlaps(&offset_range))
6096 .is_none()
6097 {
6098 next_selected_range = Some(offset_range);
6099 break;
6100 }
6101 }
6102 }
6103
6104 if let Some(next_selected_range) = next_selected_range {
6105 select_next_match_ranges(
6106 self,
6107 next_selected_range,
6108 replace_newest,
6109 autoscroll,
6110 cx,
6111 );
6112 } else {
6113 select_next_state.done = true;
6114 }
6115 }
6116
6117 self.select_next_state = Some(select_next_state);
6118 } else {
6119 let mut only_carets = true;
6120 let mut same_text_selected = true;
6121 let mut selected_text = None;
6122
6123 let mut selections_iter = selections.iter().peekable();
6124 while let Some(selection) = selections_iter.next() {
6125 if selection.start != selection.end {
6126 only_carets = false;
6127 }
6128
6129 if same_text_selected {
6130 if selected_text.is_none() {
6131 selected_text =
6132 Some(buffer.text_for_range(selection.range()).collect::<String>());
6133 }
6134
6135 if let Some(next_selection) = selections_iter.peek() {
6136 if next_selection.range().len() == selection.range().len() {
6137 let next_selected_text = buffer
6138 .text_for_range(next_selection.range())
6139 .collect::<String>();
6140 if Some(next_selected_text) != selected_text {
6141 same_text_selected = false;
6142 selected_text = None;
6143 }
6144 } else {
6145 same_text_selected = false;
6146 selected_text = None;
6147 }
6148 }
6149 }
6150 }
6151
6152 if only_carets {
6153 for selection in &mut selections {
6154 let word_range = movement::surrounding_word(
6155 &display_map,
6156 selection.start.to_display_point(&display_map),
6157 );
6158 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6159 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6160 selection.goal = SelectionGoal::None;
6161 selection.reversed = false;
6162 select_next_match_ranges(
6163 self,
6164 selection.start..selection.end,
6165 replace_newest,
6166 autoscroll,
6167 cx,
6168 );
6169 }
6170
6171 if selections.len() == 1 {
6172 let selection = selections
6173 .last()
6174 .expect("ensured that there's only one selection");
6175 let query = buffer
6176 .text_for_range(selection.start..selection.end)
6177 .collect::<String>();
6178 let is_empty = query.is_empty();
6179 let select_state = SelectNextState {
6180 query: AhoCorasick::new(&[query])?,
6181 wordwise: true,
6182 done: is_empty,
6183 };
6184 self.select_next_state = Some(select_state);
6185 } else {
6186 self.select_next_state = None;
6187 }
6188 } else if let Some(selected_text) = selected_text {
6189 self.select_next_state = Some(SelectNextState {
6190 query: AhoCorasick::new(&[selected_text])?,
6191 wordwise: false,
6192 done: false,
6193 });
6194 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6195 }
6196 }
6197 Ok(())
6198 }
6199
6200 pub fn select_all_matches(
6201 &mut self,
6202 action: &SelectAllMatches,
6203 cx: &mut ViewContext<Self>,
6204 ) -> Result<()> {
6205 self.push_to_selection_history();
6206 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6207
6208 loop {
6209 self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
6210
6211 if self
6212 .select_next_state
6213 .as_ref()
6214 .map(|selection_state| selection_state.done)
6215 .unwrap_or(true)
6216 {
6217 break;
6218 }
6219 }
6220
6221 Ok(())
6222 }
6223
6224 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6225 self.push_to_selection_history();
6226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6227 self.select_next_match_internal(
6228 &display_map,
6229 action.replace_newest,
6230 Some(Autoscroll::newest()),
6231 cx,
6232 )?;
6233 Ok(())
6234 }
6235
6236 pub fn select_previous(
6237 &mut self,
6238 action: &SelectPrevious,
6239 cx: &mut ViewContext<Self>,
6240 ) -> Result<()> {
6241 self.push_to_selection_history();
6242 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6243 let buffer = &display_map.buffer_snapshot;
6244 let mut selections = self.selections.all::<usize>(cx);
6245 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6246 let query = &select_prev_state.query;
6247 if !select_prev_state.done {
6248 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6249 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6250 let mut next_selected_range = None;
6251 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6252 let bytes_before_last_selection =
6253 buffer.reversed_bytes_in_range(0..last_selection.start);
6254 let bytes_after_first_selection =
6255 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6256 let query_matches = query
6257 .stream_find_iter(bytes_before_last_selection)
6258 .map(|result| (last_selection.start, result))
6259 .chain(
6260 query
6261 .stream_find_iter(bytes_after_first_selection)
6262 .map(|result| (buffer.len(), result)),
6263 );
6264 for (end_offset, query_match) in query_matches {
6265 let query_match = query_match.unwrap(); // can only fail due to I/O
6266 let offset_range =
6267 end_offset - query_match.end()..end_offset - query_match.start();
6268 let display_range = offset_range.start.to_display_point(&display_map)
6269 ..offset_range.end.to_display_point(&display_map);
6270
6271 if !select_prev_state.wordwise
6272 || (!movement::is_inside_word(&display_map, display_range.start)
6273 && !movement::is_inside_word(&display_map, display_range.end))
6274 {
6275 next_selected_range = Some(offset_range);
6276 break;
6277 }
6278 }
6279
6280 if let Some(next_selected_range) = next_selected_range {
6281 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6282 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6283 if action.replace_newest {
6284 s.delete(s.newest_anchor().id);
6285 }
6286 s.insert_range(next_selected_range);
6287 });
6288 } else {
6289 select_prev_state.done = true;
6290 }
6291 }
6292
6293 self.select_prev_state = Some(select_prev_state);
6294 } else {
6295 let mut only_carets = true;
6296 let mut same_text_selected = true;
6297 let mut selected_text = None;
6298
6299 let mut selections_iter = selections.iter().peekable();
6300 while let Some(selection) = selections_iter.next() {
6301 if selection.start != selection.end {
6302 only_carets = false;
6303 }
6304
6305 if same_text_selected {
6306 if selected_text.is_none() {
6307 selected_text =
6308 Some(buffer.text_for_range(selection.range()).collect::<String>());
6309 }
6310
6311 if let Some(next_selection) = selections_iter.peek() {
6312 if next_selection.range().len() == selection.range().len() {
6313 let next_selected_text = buffer
6314 .text_for_range(next_selection.range())
6315 .collect::<String>();
6316 if Some(next_selected_text) != selected_text {
6317 same_text_selected = false;
6318 selected_text = None;
6319 }
6320 } else {
6321 same_text_selected = false;
6322 selected_text = None;
6323 }
6324 }
6325 }
6326 }
6327
6328 if only_carets {
6329 for selection in &mut selections {
6330 let word_range = movement::surrounding_word(
6331 &display_map,
6332 selection.start.to_display_point(&display_map),
6333 );
6334 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6335 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6336 selection.goal = SelectionGoal::None;
6337 selection.reversed = false;
6338 }
6339 if selections.len() == 1 {
6340 let selection = selections
6341 .last()
6342 .expect("ensured that there's only one selection");
6343 let query = buffer
6344 .text_for_range(selection.start..selection.end)
6345 .collect::<String>();
6346 let is_empty = query.is_empty();
6347 let select_state = SelectNextState {
6348 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6349 wordwise: true,
6350 done: is_empty,
6351 };
6352 self.select_prev_state = Some(select_state);
6353 } else {
6354 self.select_prev_state = None;
6355 }
6356
6357 self.unfold_ranges(
6358 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6359 false,
6360 true,
6361 cx,
6362 );
6363 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6364 s.select(selections);
6365 });
6366 } else if let Some(selected_text) = selected_text {
6367 self.select_prev_state = Some(SelectNextState {
6368 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6369 wordwise: false,
6370 done: false,
6371 });
6372 self.select_previous(action, cx)?;
6373 }
6374 }
6375 Ok(())
6376 }
6377
6378 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6379 let text_layout_details = &self.text_layout_details(cx);
6380 self.transact(cx, |this, cx| {
6381 let mut selections = this.selections.all::<Point>(cx);
6382 let mut edits = Vec::new();
6383 let mut selection_edit_ranges = Vec::new();
6384 let mut last_toggled_row = None;
6385 let snapshot = this.buffer.read(cx).read(cx);
6386 let empty_str: Arc<str> = "".into();
6387 let mut suffixes_inserted = Vec::new();
6388
6389 fn comment_prefix_range(
6390 snapshot: &MultiBufferSnapshot,
6391 row: u32,
6392 comment_prefix: &str,
6393 comment_prefix_whitespace: &str,
6394 ) -> Range<Point> {
6395 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6396
6397 let mut line_bytes = snapshot
6398 .bytes_in_range(start..snapshot.max_point())
6399 .flatten()
6400 .copied();
6401
6402 // If this line currently begins with the line comment prefix, then record
6403 // the range containing the prefix.
6404 if line_bytes
6405 .by_ref()
6406 .take(comment_prefix.len())
6407 .eq(comment_prefix.bytes())
6408 {
6409 // Include any whitespace that matches the comment prefix.
6410 let matching_whitespace_len = line_bytes
6411 .zip(comment_prefix_whitespace.bytes())
6412 .take_while(|(a, b)| a == b)
6413 .count() as u32;
6414 let end = Point::new(
6415 start.row,
6416 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6417 );
6418 start..end
6419 } else {
6420 start..start
6421 }
6422 }
6423
6424 fn comment_suffix_range(
6425 snapshot: &MultiBufferSnapshot,
6426 row: u32,
6427 comment_suffix: &str,
6428 comment_suffix_has_leading_space: bool,
6429 ) -> Range<Point> {
6430 let end = Point::new(row, snapshot.line_len(row));
6431 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6432
6433 let mut line_end_bytes = snapshot
6434 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6435 .flatten()
6436 .copied();
6437
6438 let leading_space_len = if suffix_start_column > 0
6439 && line_end_bytes.next() == Some(b' ')
6440 && comment_suffix_has_leading_space
6441 {
6442 1
6443 } else {
6444 0
6445 };
6446
6447 // If this line currently begins with the line comment prefix, then record
6448 // the range containing the prefix.
6449 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6450 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6451 start..end
6452 } else {
6453 end..end
6454 }
6455 }
6456
6457 // TODO: Handle selections that cross excerpts
6458 for selection in &mut selections {
6459 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6460 let language = if let Some(language) =
6461 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6462 {
6463 language
6464 } else {
6465 continue;
6466 };
6467
6468 selection_edit_ranges.clear();
6469
6470 // If multiple selections contain a given row, avoid processing that
6471 // row more than once.
6472 let mut start_row = selection.start.row;
6473 if last_toggled_row == Some(start_row) {
6474 start_row += 1;
6475 }
6476 let end_row =
6477 if selection.end.row > selection.start.row && selection.end.column == 0 {
6478 selection.end.row - 1
6479 } else {
6480 selection.end.row
6481 };
6482 last_toggled_row = Some(end_row);
6483
6484 if start_row > end_row {
6485 continue;
6486 }
6487
6488 // If the language has line comments, toggle those.
6489 if let Some(full_comment_prefix) = language.line_comment_prefix() {
6490 // Split the comment prefix's trailing whitespace into a separate string,
6491 // as that portion won't be used for detecting if a line is a comment.
6492 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6493 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6494 let mut all_selection_lines_are_comments = true;
6495
6496 for row in start_row..=end_row {
6497 if snapshot.is_line_blank(row) && start_row < end_row {
6498 continue;
6499 }
6500
6501 let prefix_range = comment_prefix_range(
6502 snapshot.deref(),
6503 row,
6504 comment_prefix,
6505 comment_prefix_whitespace,
6506 );
6507 if prefix_range.is_empty() {
6508 all_selection_lines_are_comments = false;
6509 }
6510 selection_edit_ranges.push(prefix_range);
6511 }
6512
6513 if all_selection_lines_are_comments {
6514 edits.extend(
6515 selection_edit_ranges
6516 .iter()
6517 .cloned()
6518 .map(|range| (range, empty_str.clone())),
6519 );
6520 } else {
6521 let min_column = selection_edit_ranges
6522 .iter()
6523 .map(|r| r.start.column)
6524 .min()
6525 .unwrap_or(0);
6526 edits.extend(selection_edit_ranges.iter().map(|range| {
6527 let position = Point::new(range.start.row, min_column);
6528 (position..position, full_comment_prefix.clone())
6529 }));
6530 }
6531 } else if let Some((full_comment_prefix, comment_suffix)) =
6532 language.block_comment_delimiters()
6533 {
6534 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6535 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6536 let prefix_range = comment_prefix_range(
6537 snapshot.deref(),
6538 start_row,
6539 comment_prefix,
6540 comment_prefix_whitespace,
6541 );
6542 let suffix_range = comment_suffix_range(
6543 snapshot.deref(),
6544 end_row,
6545 comment_suffix.trim_start_matches(' '),
6546 comment_suffix.starts_with(' '),
6547 );
6548
6549 if prefix_range.is_empty() || suffix_range.is_empty() {
6550 edits.push((
6551 prefix_range.start..prefix_range.start,
6552 full_comment_prefix.clone(),
6553 ));
6554 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6555 suffixes_inserted.push((end_row, comment_suffix.len()));
6556 } else {
6557 edits.push((prefix_range, empty_str.clone()));
6558 edits.push((suffix_range, empty_str.clone()));
6559 }
6560 } else {
6561 continue;
6562 }
6563 }
6564
6565 drop(snapshot);
6566 this.buffer.update(cx, |buffer, cx| {
6567 buffer.edit(edits, None, cx);
6568 });
6569
6570 // Adjust selections so that they end before any comment suffixes that
6571 // were inserted.
6572 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6573 let mut selections = this.selections.all::<Point>(cx);
6574 let snapshot = this.buffer.read(cx).read(cx);
6575 for selection in &mut selections {
6576 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6577 match row.cmp(&selection.end.row) {
6578 Ordering::Less => {
6579 suffixes_inserted.next();
6580 continue;
6581 }
6582 Ordering::Greater => break,
6583 Ordering::Equal => {
6584 if selection.end.column == snapshot.line_len(row) {
6585 if selection.is_empty() {
6586 selection.start.column -= suffix_len as u32;
6587 }
6588 selection.end.column -= suffix_len as u32;
6589 }
6590 break;
6591 }
6592 }
6593 }
6594 }
6595
6596 drop(snapshot);
6597 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6598
6599 let selections = this.selections.all::<Point>(cx);
6600 let selections_on_single_row = selections.windows(2).all(|selections| {
6601 selections[0].start.row == selections[1].start.row
6602 && selections[0].end.row == selections[1].end.row
6603 && selections[0].start.row == selections[0].end.row
6604 });
6605 let selections_selecting = selections
6606 .iter()
6607 .any(|selection| selection.start != selection.end);
6608 let advance_downwards = action.advance_downwards
6609 && selections_on_single_row
6610 && !selections_selecting
6611 && this.mode != EditorMode::SingleLine;
6612
6613 if advance_downwards {
6614 let snapshot = this.buffer.read(cx).snapshot(cx);
6615
6616 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6617 s.move_cursors_with(|display_snapshot, display_point, _| {
6618 let mut point = display_point.to_point(display_snapshot);
6619 point.row += 1;
6620 point = snapshot.clip_point(point, Bias::Left);
6621 let display_point = point.to_display_point(display_snapshot);
6622 let goal = SelectionGoal::HorizontalPosition(
6623 display_snapshot
6624 .x_for_display_point(display_point, &text_layout_details)
6625 .into(),
6626 );
6627 (display_point, goal)
6628 })
6629 });
6630 }
6631 });
6632 }
6633
6634 pub fn select_larger_syntax_node(
6635 &mut self,
6636 _: &SelectLargerSyntaxNode,
6637 cx: &mut ViewContext<Self>,
6638 ) {
6639 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6640 let buffer = self.buffer.read(cx).snapshot(cx);
6641 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6642
6643 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6644 let mut selected_larger_node = false;
6645 let new_selections = old_selections
6646 .iter()
6647 .map(|selection| {
6648 let old_range = selection.start..selection.end;
6649 let mut new_range = old_range.clone();
6650 while let Some(containing_range) =
6651 buffer.range_for_syntax_ancestor(new_range.clone())
6652 {
6653 new_range = containing_range;
6654 if !display_map.intersects_fold(new_range.start)
6655 && !display_map.intersects_fold(new_range.end)
6656 {
6657 break;
6658 }
6659 }
6660
6661 selected_larger_node |= new_range != old_range;
6662 Selection {
6663 id: selection.id,
6664 start: new_range.start,
6665 end: new_range.end,
6666 goal: SelectionGoal::None,
6667 reversed: selection.reversed,
6668 }
6669 })
6670 .collect::<Vec<_>>();
6671
6672 if selected_larger_node {
6673 stack.push(old_selections);
6674 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6675 s.select(new_selections);
6676 });
6677 }
6678 self.select_larger_syntax_node_stack = stack;
6679 }
6680
6681 pub fn select_smaller_syntax_node(
6682 &mut self,
6683 _: &SelectSmallerSyntaxNode,
6684 cx: &mut ViewContext<Self>,
6685 ) {
6686 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6687 if let Some(selections) = stack.pop() {
6688 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6689 s.select(selections.to_vec());
6690 });
6691 }
6692 self.select_larger_syntax_node_stack = stack;
6693 }
6694
6695 pub fn move_to_enclosing_bracket(
6696 &mut self,
6697 _: &MoveToEnclosingBracket,
6698 cx: &mut ViewContext<Self>,
6699 ) {
6700 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6701 s.move_offsets_with(|snapshot, selection| {
6702 let Some(enclosing_bracket_ranges) =
6703 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6704 else {
6705 return;
6706 };
6707
6708 let mut best_length = usize::MAX;
6709 let mut best_inside = false;
6710 let mut best_in_bracket_range = false;
6711 let mut best_destination = None;
6712 for (open, close) in enclosing_bracket_ranges {
6713 let close = close.to_inclusive();
6714 let length = close.end() - open.start;
6715 let inside = selection.start >= open.end && selection.end <= *close.start();
6716 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6717 || close.contains(&selection.head());
6718
6719 // If best is next to a bracket and current isn't, skip
6720 if !in_bracket_range && best_in_bracket_range {
6721 continue;
6722 }
6723
6724 // Prefer smaller lengths unless best is inside and current isn't
6725 if length > best_length && (best_inside || !inside) {
6726 continue;
6727 }
6728
6729 best_length = length;
6730 best_inside = inside;
6731 best_in_bracket_range = in_bracket_range;
6732 best_destination = Some(
6733 if close.contains(&selection.start) && close.contains(&selection.end) {
6734 if inside {
6735 open.end
6736 } else {
6737 open.start
6738 }
6739 } else {
6740 if inside {
6741 *close.start()
6742 } else {
6743 *close.end()
6744 }
6745 },
6746 );
6747 }
6748
6749 if let Some(destination) = best_destination {
6750 selection.collapse_to(destination, SelectionGoal::None);
6751 }
6752 })
6753 });
6754 }
6755
6756 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6757 self.end_selection(cx);
6758 self.selection_history.mode = SelectionHistoryMode::Undoing;
6759 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6760 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6761 self.select_next_state = entry.select_next_state;
6762 self.select_prev_state = entry.select_prev_state;
6763 self.add_selections_state = entry.add_selections_state;
6764 self.request_autoscroll(Autoscroll::newest(), cx);
6765 }
6766 self.selection_history.mode = SelectionHistoryMode::Normal;
6767 }
6768
6769 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6770 self.end_selection(cx);
6771 self.selection_history.mode = SelectionHistoryMode::Redoing;
6772 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6773 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6774 self.select_next_state = entry.select_next_state;
6775 self.select_prev_state = entry.select_prev_state;
6776 self.add_selections_state = entry.add_selections_state;
6777 self.request_autoscroll(Autoscroll::newest(), cx);
6778 }
6779 self.selection_history.mode = SelectionHistoryMode::Normal;
6780 }
6781
6782 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6783 self.go_to_diagnostic_impl(Direction::Next, cx)
6784 }
6785
6786 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6787 self.go_to_diagnostic_impl(Direction::Prev, cx)
6788 }
6789
6790 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6791 let buffer = self.buffer.read(cx).snapshot(cx);
6792 let selection = self.selections.newest::<usize>(cx);
6793
6794 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6795 if direction == Direction::Next {
6796 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6797 let (group_id, jump_to) = popover.activation_info();
6798 if self.activate_diagnostics(group_id, cx) {
6799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6800 let mut new_selection = s.newest_anchor().clone();
6801 new_selection.collapse_to(jump_to, SelectionGoal::None);
6802 s.select_anchors(vec![new_selection.clone()]);
6803 });
6804 }
6805 return;
6806 }
6807 }
6808
6809 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6810 active_diagnostics
6811 .primary_range
6812 .to_offset(&buffer)
6813 .to_inclusive()
6814 });
6815 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6816 if active_primary_range.contains(&selection.head()) {
6817 *active_primary_range.end()
6818 } else {
6819 selection.head()
6820 }
6821 } else {
6822 selection.head()
6823 };
6824
6825 loop {
6826 let mut diagnostics = if direction == Direction::Prev {
6827 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6828 } else {
6829 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6830 };
6831 let group = diagnostics.find_map(|entry| {
6832 if entry.diagnostic.is_primary
6833 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6834 && !entry.range.is_empty()
6835 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6836 && !entry.range.contains(&search_start)
6837 {
6838 Some((entry.range, entry.diagnostic.group_id))
6839 } else {
6840 None
6841 }
6842 });
6843
6844 if let Some((primary_range, group_id)) = group {
6845 if self.activate_diagnostics(group_id, cx) {
6846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6847 s.select(vec![Selection {
6848 id: selection.id,
6849 start: primary_range.start,
6850 end: primary_range.start,
6851 reversed: false,
6852 goal: SelectionGoal::None,
6853 }]);
6854 });
6855 }
6856 break;
6857 } else {
6858 // Cycle around to the start of the buffer, potentially moving back to the start of
6859 // the currently active diagnostic.
6860 active_primary_range.take();
6861 if direction == Direction::Prev {
6862 if search_start == buffer.len() {
6863 break;
6864 } else {
6865 search_start = buffer.len();
6866 }
6867 } else if search_start == 0 {
6868 break;
6869 } else {
6870 search_start = 0;
6871 }
6872 }
6873 }
6874 }
6875
6876 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
6877 let snapshot = self
6878 .display_map
6879 .update(cx, |display_map, cx| display_map.snapshot(cx));
6880 let selection = self.selections.newest::<Point>(cx);
6881
6882 if !self.seek_in_direction(
6883 &snapshot,
6884 selection.head(),
6885 false,
6886 snapshot
6887 .buffer_snapshot
6888 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
6889 cx,
6890 ) {
6891 let wrapped_point = Point::zero();
6892 self.seek_in_direction(
6893 &snapshot,
6894 wrapped_point,
6895 true,
6896 snapshot
6897 .buffer_snapshot
6898 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
6899 cx,
6900 );
6901 }
6902 }
6903
6904 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
6905 let snapshot = self
6906 .display_map
6907 .update(cx, |display_map, cx| display_map.snapshot(cx));
6908 let selection = self.selections.newest::<Point>(cx);
6909
6910 if !self.seek_in_direction(
6911 &snapshot,
6912 selection.head(),
6913 false,
6914 snapshot
6915 .buffer_snapshot
6916 .git_diff_hunks_in_range_rev(0..selection.head().row),
6917 cx,
6918 ) {
6919 let wrapped_point = snapshot.buffer_snapshot.max_point();
6920 self.seek_in_direction(
6921 &snapshot,
6922 wrapped_point,
6923 true,
6924 snapshot
6925 .buffer_snapshot
6926 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
6927 cx,
6928 );
6929 }
6930 }
6931
6932 fn seek_in_direction(
6933 &mut self,
6934 snapshot: &DisplaySnapshot,
6935 initial_point: Point,
6936 is_wrapped: bool,
6937 hunks: impl Iterator<Item = DiffHunk<u32>>,
6938 cx: &mut ViewContext<Editor>,
6939 ) -> bool {
6940 let display_point = initial_point.to_display_point(snapshot);
6941 let mut hunks = hunks
6942 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
6943 .filter(|hunk| {
6944 if is_wrapped {
6945 true
6946 } else {
6947 !hunk.contains_display_row(display_point.row())
6948 }
6949 })
6950 .dedup();
6951
6952 if let Some(hunk) = hunks.next() {
6953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6954 let row = hunk.start_display_row();
6955 let point = DisplayPoint::new(row, 0);
6956 s.select_display_ranges([point..point]);
6957 });
6958
6959 true
6960 } else {
6961 false
6962 }
6963 }
6964
6965 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
6966 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
6967 }
6968
6969 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
6970 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
6971 }
6972
6973 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
6974 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
6975 }
6976
6977 pub fn go_to_type_definition_split(
6978 &mut self,
6979 _: &GoToTypeDefinitionSplit,
6980 cx: &mut ViewContext<Self>,
6981 ) {
6982 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
6983 }
6984
6985 fn go_to_definition_of_kind(
6986 &mut self,
6987 kind: GotoDefinitionKind,
6988 split: bool,
6989 cx: &mut ViewContext<Self>,
6990 ) {
6991 let Some(workspace) = self.workspace() else {
6992 return;
6993 };
6994 let buffer = self.buffer.read(cx);
6995 let head = self.selections.newest::<usize>(cx).head();
6996 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
6997 text_anchor
6998 } else {
6999 return;
7000 };
7001
7002 let project = workspace.read(cx).project().clone();
7003 let definitions = project.update(cx, |project, cx| match kind {
7004 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7005 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7006 });
7007
7008 cx.spawn(|editor, mut cx| async move {
7009 let definitions = definitions.await?;
7010 editor.update(&mut cx, |editor, cx| {
7011 editor.navigate_to_definitions(
7012 definitions
7013 .into_iter()
7014 .map(GoToDefinitionLink::Text)
7015 .collect(),
7016 split,
7017 cx,
7018 );
7019 })?;
7020 Ok::<(), anyhow::Error>(())
7021 })
7022 .detach_and_log_err(cx);
7023 }
7024
7025 pub fn navigate_to_definitions(
7026 &mut self,
7027 mut definitions: Vec<GoToDefinitionLink>,
7028 split: bool,
7029 cx: &mut ViewContext<Editor>,
7030 ) {
7031 let Some(workspace) = self.workspace() else {
7032 return;
7033 };
7034 let pane = workspace.read(cx).active_pane().clone();
7035 // If there is one definition, just open it directly
7036 if definitions.len() == 1 {
7037 let definition = definitions.pop().unwrap();
7038 let target_task = match definition {
7039 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7040 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7041 self.compute_target_location(lsp_location, server_id, cx)
7042 }
7043 };
7044 cx.spawn(|editor, mut cx| async move {
7045 let target = target_task.await.context("target resolution task")?;
7046 if let Some(target) = target {
7047 editor.update(&mut cx, |editor, cx| {
7048 let range = target.range.to_offset(target.buffer.read(cx));
7049 let range = editor.range_for_match(&range);
7050 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7051 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7052 s.select_ranges([range]);
7053 });
7054 } else {
7055 cx.window_context().defer(move |cx| {
7056 let target_editor: View<Self> =
7057 workspace.update(cx, |workspace, cx| {
7058 if split {
7059 workspace.split_project_item(target.buffer.clone(), cx)
7060 } else {
7061 workspace.open_project_item(target.buffer.clone(), cx)
7062 }
7063 });
7064 target_editor.update(cx, |target_editor, cx| {
7065 // When selecting a definition in a different buffer, disable the nav history
7066 // to avoid creating a history entry at the previous cursor location.
7067 pane.update(cx, |pane, _| pane.disable_history());
7068 target_editor.change_selections(
7069 Some(Autoscroll::fit()),
7070 cx,
7071 |s| {
7072 s.select_ranges([range]);
7073 },
7074 );
7075 pane.update(cx, |pane, _| pane.enable_history());
7076 });
7077 });
7078 }
7079 })
7080 } else {
7081 Ok(())
7082 }
7083 })
7084 .detach_and_log_err(cx);
7085 } else if !definitions.is_empty() {
7086 let replica_id = self.replica_id(cx);
7087 cx.spawn(|editor, mut cx| async move {
7088 let (title, location_tasks) = editor
7089 .update(&mut cx, |editor, cx| {
7090 let title = definitions
7091 .iter()
7092 .find_map(|definition| match definition {
7093 GoToDefinitionLink::Text(link) => {
7094 link.origin.as_ref().map(|origin| {
7095 let buffer = origin.buffer.read(cx);
7096 format!(
7097 "Definitions for {}",
7098 buffer
7099 .text_for_range(origin.range.clone())
7100 .collect::<String>()
7101 )
7102 })
7103 }
7104 GoToDefinitionLink::InlayHint(_, _) => None,
7105 })
7106 .unwrap_or("Definitions".to_string());
7107 let location_tasks = definitions
7108 .into_iter()
7109 .map(|definition| match definition {
7110 GoToDefinitionLink::Text(link) => {
7111 Task::Ready(Some(Ok(Some(link.target))))
7112 }
7113 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7114 editor.compute_target_location(lsp_location, server_id, cx)
7115 }
7116 })
7117 .collect::<Vec<_>>();
7118 (title, location_tasks)
7119 })
7120 .context("location tasks preparation")?;
7121
7122 let locations = futures::future::join_all(location_tasks)
7123 .await
7124 .into_iter()
7125 .filter_map(|location| location.transpose())
7126 .collect::<Result<_>>()
7127 .context("location tasks")?;
7128 workspace
7129 .update(&mut cx, |workspace, cx| {
7130 Self::open_locations_in_multibuffer(
7131 workspace, locations, replica_id, title, split, cx,
7132 )
7133 })
7134 .ok();
7135
7136 anyhow::Ok(())
7137 })
7138 .detach_and_log_err(cx);
7139 }
7140 }
7141
7142 fn compute_target_location(
7143 &self,
7144 lsp_location: lsp::Location,
7145 server_id: LanguageServerId,
7146 cx: &mut ViewContext<Editor>,
7147 ) -> Task<anyhow::Result<Option<Location>>> {
7148 let Some(project) = self.project.clone() else {
7149 return Task::Ready(Some(Ok(None)));
7150 };
7151
7152 cx.spawn(move |editor, mut cx| async move {
7153 let location_task = editor.update(&mut cx, |editor, cx| {
7154 project.update(cx, |project, cx| {
7155 let language_server_name =
7156 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7157 project
7158 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7159 .map(|(_, lsp_adapter)| {
7160 LanguageServerName(Arc::from(lsp_adapter.name()))
7161 })
7162 });
7163 language_server_name.map(|language_server_name| {
7164 project.open_local_buffer_via_lsp(
7165 lsp_location.uri.clone(),
7166 server_id,
7167 language_server_name,
7168 cx,
7169 )
7170 })
7171 })
7172 })?;
7173 let location = match location_task {
7174 Some(task) => Some({
7175 let target_buffer_handle = task.await.context("open local buffer")?;
7176 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7177 let target_start = target_buffer
7178 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7179 let target_end = target_buffer
7180 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7181 target_buffer.anchor_after(target_start)
7182 ..target_buffer.anchor_before(target_end)
7183 })?;
7184 Location {
7185 buffer: target_buffer_handle,
7186 range,
7187 }
7188 }),
7189 None => None,
7190 };
7191 Ok(location)
7192 })
7193 }
7194
7195 pub fn find_all_references(
7196 &mut self,
7197 _: &FindAllReferences,
7198 cx: &mut ViewContext<Self>,
7199 ) -> Option<Task<Result<()>>> {
7200 let buffer = self.buffer.read(cx);
7201 let head = self.selections.newest::<usize>(cx).head();
7202 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7203 let replica_id = self.replica_id(cx);
7204
7205 let workspace = self.workspace()?;
7206 let project = workspace.read(cx).project().clone();
7207 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7208 Some(cx.spawn(|_, mut cx| async move {
7209 let locations = references.await?;
7210 if locations.is_empty() {
7211 return Ok(());
7212 }
7213
7214 workspace.update(&mut cx, |workspace, cx| {
7215 let title = locations
7216 .first()
7217 .as_ref()
7218 .map(|location| {
7219 let buffer = location.buffer.read(cx);
7220 format!(
7221 "References to `{}`",
7222 buffer
7223 .text_for_range(location.range.clone())
7224 .collect::<String>()
7225 )
7226 })
7227 .unwrap();
7228 Self::open_locations_in_multibuffer(
7229 workspace, locations, replica_id, title, false, cx,
7230 );
7231 })?;
7232
7233 Ok(())
7234 }))
7235 }
7236
7237 /// Opens a multibuffer with the given project locations in it
7238 pub fn open_locations_in_multibuffer(
7239 workspace: &mut Workspace,
7240 mut locations: Vec<Location>,
7241 replica_id: ReplicaId,
7242 title: String,
7243 split: bool,
7244 cx: &mut ViewContext<Workspace>,
7245 ) {
7246 // If there are multiple definitions, open them in a multibuffer
7247 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7248 let mut locations = locations.into_iter().peekable();
7249 let mut ranges_to_highlight = Vec::new();
7250 let capability = workspace.project().read(cx).capability();
7251
7252 let excerpt_buffer = cx.new_model(|cx| {
7253 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7254 while let Some(location) = locations.next() {
7255 let buffer = location.buffer.read(cx);
7256 let mut ranges_for_buffer = Vec::new();
7257 let range = location.range.to_offset(buffer);
7258 ranges_for_buffer.push(range.clone());
7259
7260 while let Some(next_location) = locations.peek() {
7261 if next_location.buffer == location.buffer {
7262 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7263 locations.next();
7264 } else {
7265 break;
7266 }
7267 }
7268
7269 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7270 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7271 location.buffer.clone(),
7272 ranges_for_buffer,
7273 1,
7274 cx,
7275 ))
7276 }
7277
7278 multibuffer.with_title(title)
7279 });
7280
7281 let editor = cx.new_view(|cx| {
7282 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7283 });
7284 editor.update(cx, |editor, cx| {
7285 editor.highlight_background::<Self>(
7286 ranges_to_highlight,
7287 |theme| theme.editor_highlighted_line_background,
7288 cx,
7289 );
7290 });
7291 if split {
7292 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7293 } else {
7294 workspace.add_item(Box::new(editor), cx);
7295 }
7296 }
7297
7298 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7299 use language::ToOffset as _;
7300
7301 let project = self.project.clone()?;
7302 let selection = self.selections.newest_anchor().clone();
7303 let (cursor_buffer, cursor_buffer_position) = self
7304 .buffer
7305 .read(cx)
7306 .text_anchor_for_position(selection.head(), cx)?;
7307 let (tail_buffer, _) = self
7308 .buffer
7309 .read(cx)
7310 .text_anchor_for_position(selection.tail(), cx)?;
7311 if tail_buffer != cursor_buffer {
7312 return None;
7313 }
7314
7315 let snapshot = cursor_buffer.read(cx).snapshot();
7316 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7317 let prepare_rename = project.update(cx, |project, cx| {
7318 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7319 });
7320
7321 Some(cx.spawn(|this, mut cx| async move {
7322 let rename_range = if let Some(range) = prepare_rename.await? {
7323 Some(range)
7324 } else {
7325 this.update(&mut cx, |this, cx| {
7326 let buffer = this.buffer.read(cx).snapshot(cx);
7327 let mut buffer_highlights = this
7328 .document_highlights_for_position(selection.head(), &buffer)
7329 .filter(|highlight| {
7330 highlight.start.excerpt_id == selection.head().excerpt_id
7331 && highlight.end.excerpt_id == selection.head().excerpt_id
7332 });
7333 buffer_highlights
7334 .next()
7335 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7336 })?
7337 };
7338 if let Some(rename_range) = rename_range {
7339 let rename_buffer_range = rename_range.to_offset(&snapshot);
7340 let cursor_offset_in_rename_range =
7341 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7342
7343 this.update(&mut cx, |this, cx| {
7344 this.take_rename(false, cx);
7345 let buffer = this.buffer.read(cx).read(cx);
7346 let cursor_offset = selection.head().to_offset(&buffer);
7347 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7348 let rename_end = rename_start + rename_buffer_range.len();
7349 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7350 let mut old_highlight_id = None;
7351 let old_name: Arc<str> = buffer
7352 .chunks(rename_start..rename_end, true)
7353 .map(|chunk| {
7354 if old_highlight_id.is_none() {
7355 old_highlight_id = chunk.syntax_highlight_id;
7356 }
7357 chunk.text
7358 })
7359 .collect::<String>()
7360 .into();
7361
7362 drop(buffer);
7363
7364 // Position the selection in the rename editor so that it matches the current selection.
7365 this.show_local_selections = false;
7366 let rename_editor = cx.new_view(|cx| {
7367 let mut editor = Editor::single_line(cx);
7368 editor.buffer.update(cx, |buffer, cx| {
7369 buffer.edit([(0..0, old_name.clone())], None, cx)
7370 });
7371 editor.select_all(&SelectAll, cx);
7372 editor
7373 });
7374
7375 let ranges = this
7376 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7377 .into_iter()
7378 .flat_map(|(_, ranges)| ranges.into_iter())
7379 .chain(
7380 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7381 .into_iter()
7382 .flat_map(|(_, ranges)| ranges.into_iter()),
7383 )
7384 .collect();
7385
7386 this.highlight_text::<Rename>(
7387 ranges,
7388 HighlightStyle {
7389 fade_out: Some(0.6),
7390 ..Default::default()
7391 },
7392 cx,
7393 );
7394 let rename_focus_handle = rename_editor.focus_handle(cx);
7395 cx.focus(&rename_focus_handle);
7396 let block_id = this.insert_blocks(
7397 [BlockProperties {
7398 style: BlockStyle::Flex,
7399 position: range.start.clone(),
7400 height: 1,
7401 render: Arc::new({
7402 let rename_editor = rename_editor.clone();
7403 move |cx: &mut BlockContext| {
7404 let mut text_style = cx.editor_style.text.clone();
7405 if let Some(highlight_style) = old_highlight_id
7406 .and_then(|h| h.style(&cx.editor_style.syntax))
7407 {
7408 text_style = text_style.highlight(highlight_style);
7409 }
7410 div()
7411 .pl(cx.anchor_x)
7412 .child(EditorElement::new(
7413 &rename_editor,
7414 EditorStyle {
7415 background: cx.theme().system().transparent,
7416 local_player: cx.editor_style.local_player,
7417 text: text_style,
7418 scrollbar_width: cx.editor_style.scrollbar_width,
7419 syntax: cx.editor_style.syntax.clone(),
7420 status: cx.editor_style.status.clone(),
7421 inlays_style: HighlightStyle {
7422 color: Some(cx.theme().status().hint),
7423 font_weight: Some(FontWeight::BOLD),
7424 ..HighlightStyle::default()
7425 },
7426 suggestions_style: HighlightStyle {
7427 color: Some(cx.theme().status().predictive),
7428 ..HighlightStyle::default()
7429 },
7430 },
7431 ))
7432 .into_any_element()
7433 }
7434 }),
7435 disposition: BlockDisposition::Below,
7436 }],
7437 Some(Autoscroll::fit()),
7438 cx,
7439 )[0];
7440 this.pending_rename = Some(RenameState {
7441 range,
7442 old_name,
7443 editor: rename_editor,
7444 block_id,
7445 });
7446 })?;
7447 }
7448
7449 Ok(())
7450 }))
7451 }
7452
7453 pub fn confirm_rename(
7454 &mut self,
7455 _: &ConfirmRename,
7456 cx: &mut ViewContext<Self>,
7457 ) -> Option<Task<Result<()>>> {
7458 let rename = self.take_rename(false, cx)?;
7459 let workspace = self.workspace()?;
7460 let (start_buffer, start) = self
7461 .buffer
7462 .read(cx)
7463 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7464 let (end_buffer, end) = self
7465 .buffer
7466 .read(cx)
7467 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7468 if start_buffer != end_buffer {
7469 return None;
7470 }
7471
7472 let buffer = start_buffer;
7473 let range = start..end;
7474 let old_name = rename.old_name;
7475 let new_name = rename.editor.read(cx).text(cx);
7476
7477 let rename = workspace
7478 .read(cx)
7479 .project()
7480 .clone()
7481 .update(cx, |project, cx| {
7482 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7483 });
7484 let workspace = workspace.downgrade();
7485
7486 Some(cx.spawn(|editor, mut cx| async move {
7487 let project_transaction = rename.await?;
7488 Self::open_project_transaction(
7489 &editor,
7490 workspace,
7491 project_transaction,
7492 format!("Rename: {} → {}", old_name, new_name),
7493 cx.clone(),
7494 )
7495 .await?;
7496
7497 editor.update(&mut cx, |editor, cx| {
7498 editor.refresh_document_highlights(cx);
7499 })?;
7500 Ok(())
7501 }))
7502 }
7503
7504 fn take_rename(
7505 &mut self,
7506 moving_cursor: bool,
7507 cx: &mut ViewContext<Self>,
7508 ) -> Option<RenameState> {
7509 let rename = self.pending_rename.take()?;
7510 if rename.editor.focus_handle(cx).is_focused(cx) {
7511 cx.focus(&self.focus_handle);
7512 }
7513
7514 self.remove_blocks(
7515 [rename.block_id].into_iter().collect(),
7516 Some(Autoscroll::fit()),
7517 cx,
7518 );
7519 self.clear_highlights::<Rename>(cx);
7520 self.show_local_selections = true;
7521
7522 if moving_cursor {
7523 let rename_editor = rename.editor.read(cx);
7524 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7525
7526 // Update the selection to match the position of the selection inside
7527 // the rename editor.
7528 let snapshot = self.buffer.read(cx).read(cx);
7529 let rename_range = rename.range.to_offset(&snapshot);
7530 let cursor_in_editor = snapshot
7531 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7532 .min(rename_range.end);
7533 drop(snapshot);
7534
7535 self.change_selections(None, cx, |s| {
7536 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7537 });
7538 } else {
7539 self.refresh_document_highlights(cx);
7540 }
7541
7542 Some(rename)
7543 }
7544
7545 #[cfg(any(test, feature = "test-support"))]
7546 pub fn pending_rename(&self) -> Option<&RenameState> {
7547 self.pending_rename.as_ref()
7548 }
7549
7550 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7551 let project = match &self.project {
7552 Some(project) => project.clone(),
7553 None => return None,
7554 };
7555
7556 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7557 }
7558
7559 fn perform_format(
7560 &mut self,
7561 project: Model<Project>,
7562 trigger: FormatTrigger,
7563 cx: &mut ViewContext<Self>,
7564 ) -> Task<Result<()>> {
7565 let buffer = self.buffer().clone();
7566 let buffers = buffer.read(cx).all_buffers();
7567
7568 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7569 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7570
7571 cx.spawn(|_, mut cx| async move {
7572 let transaction = futures::select_biased! {
7573 _ = timeout => {
7574 log::warn!("timed out waiting for formatting");
7575 None
7576 }
7577 transaction = format.log_err().fuse() => transaction,
7578 };
7579
7580 buffer
7581 .update(&mut cx, |buffer, cx| {
7582 if let Some(transaction) = transaction {
7583 if !buffer.is_singleton() {
7584 buffer.push_transaction(&transaction.0, cx);
7585 }
7586 }
7587
7588 cx.notify();
7589 })
7590 .ok();
7591
7592 Ok(())
7593 })
7594 }
7595
7596 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7597 if let Some(project) = self.project.clone() {
7598 self.buffer.update(cx, |multi_buffer, cx| {
7599 project.update(cx, |project, cx| {
7600 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7601 });
7602 })
7603 }
7604 }
7605
7606 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7607 cx.show_character_palette();
7608 }
7609
7610 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7611 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7612 let buffer = self.buffer.read(cx).snapshot(cx);
7613 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7614 let is_valid = buffer
7615 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7616 .any(|entry| {
7617 entry.diagnostic.is_primary
7618 && !entry.range.is_empty()
7619 && entry.range.start == primary_range_start
7620 && entry.diagnostic.message == active_diagnostics.primary_message
7621 });
7622
7623 if is_valid != active_diagnostics.is_valid {
7624 active_diagnostics.is_valid = is_valid;
7625 let mut new_styles = HashMap::default();
7626 for (block_id, diagnostic) in &active_diagnostics.blocks {
7627 new_styles.insert(
7628 *block_id,
7629 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7630 );
7631 }
7632 self.display_map
7633 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7634 }
7635 }
7636 }
7637
7638 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7639 self.dismiss_diagnostics(cx);
7640 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7641 let buffer = self.buffer.read(cx).snapshot(cx);
7642
7643 let mut primary_range = None;
7644 let mut primary_message = None;
7645 let mut group_end = Point::zero();
7646 let diagnostic_group = buffer
7647 .diagnostic_group::<Point>(group_id)
7648 .map(|entry| {
7649 if entry.range.end > group_end {
7650 group_end = entry.range.end;
7651 }
7652 if entry.diagnostic.is_primary {
7653 primary_range = Some(entry.range.clone());
7654 primary_message = Some(entry.diagnostic.message.clone());
7655 }
7656 entry
7657 })
7658 .collect::<Vec<_>>();
7659 let primary_range = primary_range?;
7660 let primary_message = primary_message?;
7661 let primary_range =
7662 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7663
7664 let blocks = display_map
7665 .insert_blocks(
7666 diagnostic_group.iter().map(|entry| {
7667 let diagnostic = entry.diagnostic.clone();
7668 let message_height = diagnostic.message.lines().count() as u8;
7669 BlockProperties {
7670 style: BlockStyle::Fixed,
7671 position: buffer.anchor_after(entry.range.start),
7672 height: message_height,
7673 render: diagnostic_block_renderer(diagnostic, true),
7674 disposition: BlockDisposition::Below,
7675 }
7676 }),
7677 cx,
7678 )
7679 .into_iter()
7680 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7681 .collect();
7682
7683 Some(ActiveDiagnosticGroup {
7684 primary_range,
7685 primary_message,
7686 blocks,
7687 is_valid: true,
7688 })
7689 });
7690 self.active_diagnostics.is_some()
7691 }
7692
7693 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7694 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7695 self.display_map.update(cx, |display_map, cx| {
7696 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7697 });
7698 cx.notify();
7699 }
7700 }
7701
7702 pub fn set_selections_from_remote(
7703 &mut self,
7704 selections: Vec<Selection<Anchor>>,
7705 pending_selection: Option<Selection<Anchor>>,
7706 cx: &mut ViewContext<Self>,
7707 ) {
7708 let old_cursor_position = self.selections.newest_anchor().head();
7709 self.selections.change_with(cx, |s| {
7710 s.select_anchors(selections);
7711 if let Some(pending_selection) = pending_selection {
7712 s.set_pending(pending_selection, SelectMode::Character);
7713 } else {
7714 s.clear_pending();
7715 }
7716 });
7717 self.selections_did_change(false, &old_cursor_position, cx);
7718 }
7719
7720 fn push_to_selection_history(&mut self) {
7721 self.selection_history.push(SelectionHistoryEntry {
7722 selections: self.selections.disjoint_anchors(),
7723 select_next_state: self.select_next_state.clone(),
7724 select_prev_state: self.select_prev_state.clone(),
7725 add_selections_state: self.add_selections_state.clone(),
7726 });
7727 }
7728
7729 pub fn transact(
7730 &mut self,
7731 cx: &mut ViewContext<Self>,
7732 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7733 ) -> Option<TransactionId> {
7734 self.start_transaction_at(Instant::now(), cx);
7735 update(self, cx);
7736 self.end_transaction_at(Instant::now(), cx)
7737 }
7738
7739 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7740 self.end_selection(cx);
7741 if let Some(tx_id) = self
7742 .buffer
7743 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7744 {
7745 self.selection_history
7746 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7747 }
7748 }
7749
7750 fn end_transaction_at(
7751 &mut self,
7752 now: Instant,
7753 cx: &mut ViewContext<Self>,
7754 ) -> Option<TransactionId> {
7755 if let Some(tx_id) = self
7756 .buffer
7757 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7758 {
7759 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7760 *end_selections = Some(self.selections.disjoint_anchors());
7761 } else {
7762 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7763 }
7764
7765 cx.emit(EditorEvent::Edited);
7766 Some(tx_id)
7767 } else {
7768 None
7769 }
7770 }
7771
7772 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7773 let mut fold_ranges = Vec::new();
7774
7775 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7776
7777 let selections = self.selections.all_adjusted(cx);
7778 for selection in selections {
7779 let range = selection.range().sorted();
7780 let buffer_start_row = range.start.row;
7781
7782 for row in (0..=range.end.row).rev() {
7783 let fold_range = display_map.foldable_range(row);
7784
7785 if let Some(fold_range) = fold_range {
7786 if fold_range.end.row >= buffer_start_row {
7787 fold_ranges.push(fold_range);
7788 if row <= range.start.row {
7789 break;
7790 }
7791 }
7792 }
7793 }
7794 }
7795
7796 self.fold_ranges(fold_ranges, true, cx);
7797 }
7798
7799 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7800 let buffer_row = fold_at.buffer_row;
7801 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7802
7803 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7804 let autoscroll = self
7805 .selections
7806 .all::<Point>(cx)
7807 .iter()
7808 .any(|selection| fold_range.overlaps(&selection.range()));
7809
7810 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7811 }
7812 }
7813
7814 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7815 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7816 let buffer = &display_map.buffer_snapshot;
7817 let selections = self.selections.all::<Point>(cx);
7818 let ranges = selections
7819 .iter()
7820 .map(|s| {
7821 let range = s.display_range(&display_map).sorted();
7822 let mut start = range.start.to_point(&display_map);
7823 let mut end = range.end.to_point(&display_map);
7824 start.column = 0;
7825 end.column = buffer.line_len(end.row);
7826 start..end
7827 })
7828 .collect::<Vec<_>>();
7829
7830 self.unfold_ranges(ranges, true, true, cx);
7831 }
7832
7833 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7834 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7835
7836 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7837 ..Point::new(
7838 unfold_at.buffer_row,
7839 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7840 );
7841
7842 let autoscroll = self
7843 .selections
7844 .all::<Point>(cx)
7845 .iter()
7846 .any(|selection| selection.range().overlaps(&intersection_range));
7847
7848 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
7849 }
7850
7851 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
7852 let selections = self.selections.all::<Point>(cx);
7853 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7854 let line_mode = self.selections.line_mode;
7855 let ranges = selections.into_iter().map(|s| {
7856 if line_mode {
7857 let start = Point::new(s.start.row, 0);
7858 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
7859 start..end
7860 } else {
7861 s.start..s.end
7862 }
7863 });
7864 self.fold_ranges(ranges, true, cx);
7865 }
7866
7867 pub fn fold_ranges<T: ToOffset + Clone>(
7868 &mut self,
7869 ranges: impl IntoIterator<Item = Range<T>>,
7870 auto_scroll: bool,
7871 cx: &mut ViewContext<Self>,
7872 ) {
7873 let mut ranges = ranges.into_iter().peekable();
7874 if ranges.peek().is_some() {
7875 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
7876
7877 if auto_scroll {
7878 self.request_autoscroll(Autoscroll::fit(), cx);
7879 }
7880
7881 cx.notify();
7882 }
7883 }
7884
7885 pub fn unfold_ranges<T: ToOffset + Clone>(
7886 &mut self,
7887 ranges: impl IntoIterator<Item = Range<T>>,
7888 inclusive: bool,
7889 auto_scroll: bool,
7890 cx: &mut ViewContext<Self>,
7891 ) {
7892 let mut ranges = ranges.into_iter().peekable();
7893 if ranges.peek().is_some() {
7894 self.display_map
7895 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
7896 if auto_scroll {
7897 self.request_autoscroll(Autoscroll::fit(), cx);
7898 }
7899
7900 cx.notify();
7901 }
7902 }
7903
7904 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
7905 if hovered != self.gutter_hovered {
7906 self.gutter_hovered = hovered;
7907 cx.notify();
7908 }
7909 }
7910
7911 pub fn insert_blocks(
7912 &mut self,
7913 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
7914 autoscroll: Option<Autoscroll>,
7915 cx: &mut ViewContext<Self>,
7916 ) -> Vec<BlockId> {
7917 let blocks = self
7918 .display_map
7919 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
7920 if let Some(autoscroll) = autoscroll {
7921 self.request_autoscroll(autoscroll, cx);
7922 }
7923 blocks
7924 }
7925
7926 pub fn replace_blocks(
7927 &mut self,
7928 blocks: HashMap<BlockId, RenderBlock>,
7929 autoscroll: Option<Autoscroll>,
7930 cx: &mut ViewContext<Self>,
7931 ) {
7932 self.display_map
7933 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
7934 if let Some(autoscroll) = autoscroll {
7935 self.request_autoscroll(autoscroll, cx);
7936 }
7937 }
7938
7939 pub fn remove_blocks(
7940 &mut self,
7941 block_ids: HashSet<BlockId>,
7942 autoscroll: Option<Autoscroll>,
7943 cx: &mut ViewContext<Self>,
7944 ) {
7945 self.display_map.update(cx, |display_map, cx| {
7946 display_map.remove_blocks(block_ids, cx)
7947 });
7948 if let Some(autoscroll) = autoscroll {
7949 self.request_autoscroll(autoscroll, cx);
7950 }
7951 }
7952
7953 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
7954 self.display_map
7955 .update(cx, |map, cx| map.snapshot(cx))
7956 .longest_row()
7957 }
7958
7959 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
7960 self.display_map
7961 .update(cx, |map, cx| map.snapshot(cx))
7962 .max_point()
7963 }
7964
7965 pub fn text(&self, cx: &AppContext) -> String {
7966 self.buffer.read(cx).read(cx).text()
7967 }
7968
7969 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
7970 let text = self.text(cx);
7971 let text = text.trim();
7972
7973 if text.is_empty() {
7974 return None;
7975 }
7976
7977 Some(text.to_string())
7978 }
7979
7980 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
7981 self.transact(cx, |this, cx| {
7982 this.buffer
7983 .read(cx)
7984 .as_singleton()
7985 .expect("you can only call set_text on editors for singleton buffers")
7986 .update(cx, |buffer, cx| buffer.set_text(text, cx));
7987 });
7988 }
7989
7990 pub fn display_text(&self, cx: &mut AppContext) -> String {
7991 self.display_map
7992 .update(cx, |map, cx| map.snapshot(cx))
7993 .text()
7994 }
7995
7996 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
7997 let mut wrap_guides = smallvec::smallvec![];
7998
7999 if self.show_wrap_guides == Some(false) {
8000 return wrap_guides;
8001 }
8002
8003 let settings = self.buffer.read(cx).settings_at(0, cx);
8004 if settings.show_wrap_guides {
8005 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8006 wrap_guides.push((soft_wrap as usize, true));
8007 }
8008 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8009 }
8010
8011 wrap_guides
8012 }
8013
8014 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8015 let settings = self.buffer.read(cx).settings_at(0, cx);
8016 let mode = self
8017 .soft_wrap_mode_override
8018 .unwrap_or_else(|| settings.soft_wrap);
8019 match mode {
8020 language_settings::SoftWrap::None => SoftWrap::None,
8021 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8022 language_settings::SoftWrap::PreferredLineLength => {
8023 SoftWrap::Column(settings.preferred_line_length)
8024 }
8025 }
8026 }
8027
8028 pub fn set_soft_wrap_mode(
8029 &mut self,
8030 mode: language_settings::SoftWrap,
8031 cx: &mut ViewContext<Self>,
8032 ) {
8033 self.soft_wrap_mode_override = Some(mode);
8034 cx.notify();
8035 }
8036
8037 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8038 let rem_size = cx.rem_size();
8039 self.display_map.update(cx, |map, cx| {
8040 map.set_font(
8041 style.text.font(),
8042 style.text.font_size.to_pixels(rem_size),
8043 cx,
8044 )
8045 });
8046 self.style = Some(style);
8047 }
8048
8049 #[cfg(any(test, feature = "test-support"))]
8050 pub fn style(&self) -> Option<&EditorStyle> {
8051 self.style.as_ref()
8052 }
8053
8054 // Called by the element. This method is not designed to be called outside of the editor
8055 // element's layout code because it does not notify when rewrapping is computed synchronously.
8056 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8057 self.display_map
8058 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8059 }
8060
8061 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8062 if self.soft_wrap_mode_override.is_some() {
8063 self.soft_wrap_mode_override.take();
8064 } else {
8065 let soft_wrap = match self.soft_wrap_mode(cx) {
8066 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8067 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8068 };
8069 self.soft_wrap_mode_override = Some(soft_wrap);
8070 }
8071 cx.notify();
8072 }
8073
8074 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8075 self.show_gutter = show_gutter;
8076 cx.notify();
8077 }
8078
8079 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8080 self.show_wrap_guides = Some(show_gutter);
8081 cx.notify();
8082 }
8083
8084 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8085 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8086 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8087 cx.reveal_path(&file.abs_path(cx));
8088 }
8089 }
8090 }
8091
8092 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8093 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8094 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8095 if let Some(path) = file.abs_path(cx).to_str() {
8096 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8097 }
8098 }
8099 }
8100 }
8101
8102 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8103 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8104 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8105 if let Some(path) = file.path().to_str() {
8106 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8107 }
8108 }
8109 }
8110 }
8111
8112 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8113 self.highlighted_rows = rows;
8114 }
8115
8116 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8117 self.highlighted_rows.clone()
8118 }
8119
8120 pub fn highlight_background<T: 'static>(
8121 &mut self,
8122 ranges: Vec<Range<Anchor>>,
8123 color_fetcher: fn(&ThemeColors) -> Hsla,
8124 cx: &mut ViewContext<Self>,
8125 ) {
8126 self.background_highlights
8127 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8128 cx.notify();
8129 }
8130
8131 pub(crate) fn highlight_inlay_background<T: 'static>(
8132 &mut self,
8133 ranges: Vec<InlayHighlight>,
8134 color_fetcher: fn(&ThemeColors) -> Hsla,
8135 cx: &mut ViewContext<Self>,
8136 ) {
8137 // TODO: no actual highlights happen for inlays currently, find a way to do that
8138 self.inlay_background_highlights
8139 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8140 cx.notify();
8141 }
8142
8143 pub fn clear_background_highlights<T: 'static>(
8144 &mut self,
8145 cx: &mut ViewContext<Self>,
8146 ) -> Option<BackgroundHighlight> {
8147 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8148 let inlay_highlights = self
8149 .inlay_background_highlights
8150 .remove(&Some(TypeId::of::<T>()));
8151 if text_highlights.is_some() || inlay_highlights.is_some() {
8152 cx.notify();
8153 }
8154 text_highlights
8155 }
8156
8157 #[cfg(feature = "test-support")]
8158 pub fn all_text_background_highlights(
8159 &mut self,
8160 cx: &mut ViewContext<Self>,
8161 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8162 let snapshot = self.snapshot(cx);
8163 let buffer = &snapshot.buffer_snapshot;
8164 let start = buffer.anchor_before(0);
8165 let end = buffer.anchor_after(buffer.len());
8166 let theme = cx.theme().colors();
8167 self.background_highlights_in_range(start..end, &snapshot, theme)
8168 }
8169
8170 fn document_highlights_for_position<'a>(
8171 &'a self,
8172 position: Anchor,
8173 buffer: &'a MultiBufferSnapshot,
8174 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8175 let read_highlights = self
8176 .background_highlights
8177 .get(&TypeId::of::<DocumentHighlightRead>())
8178 .map(|h| &h.1);
8179 let write_highlights = self
8180 .background_highlights
8181 .get(&TypeId::of::<DocumentHighlightWrite>())
8182 .map(|h| &h.1);
8183 let left_position = position.bias_left(buffer);
8184 let right_position = position.bias_right(buffer);
8185 read_highlights
8186 .into_iter()
8187 .chain(write_highlights)
8188 .flat_map(move |ranges| {
8189 let start_ix = match ranges.binary_search_by(|probe| {
8190 let cmp = probe.end.cmp(&left_position, buffer);
8191 if cmp.is_ge() {
8192 Ordering::Greater
8193 } else {
8194 Ordering::Less
8195 }
8196 }) {
8197 Ok(i) | Err(i) => i,
8198 };
8199
8200 let right_position = right_position.clone();
8201 ranges[start_ix..]
8202 .iter()
8203 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8204 })
8205 }
8206
8207 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8208 self.background_highlights
8209 .get(&TypeId::of::<T>())
8210 .map_or(false, |(_, highlights)| !highlights.is_empty())
8211 }
8212
8213 pub fn background_highlights_in_range(
8214 &self,
8215 search_range: Range<Anchor>,
8216 display_snapshot: &DisplaySnapshot,
8217 theme: &ThemeColors,
8218 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8219 let mut results = Vec::new();
8220 for (color_fetcher, ranges) in self.background_highlights.values() {
8221 let color = color_fetcher(theme);
8222 let start_ix = match ranges.binary_search_by(|probe| {
8223 let cmp = probe
8224 .end
8225 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8226 if cmp.is_gt() {
8227 Ordering::Greater
8228 } else {
8229 Ordering::Less
8230 }
8231 }) {
8232 Ok(i) | Err(i) => i,
8233 };
8234 for range in &ranges[start_ix..] {
8235 if range
8236 .start
8237 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8238 .is_ge()
8239 {
8240 break;
8241 }
8242
8243 let start = range.start.to_display_point(&display_snapshot);
8244 let end = range.end.to_display_point(&display_snapshot);
8245 results.push((start..end, color))
8246 }
8247 }
8248 results
8249 }
8250
8251 pub fn background_highlight_row_ranges<T: 'static>(
8252 &self,
8253 search_range: Range<Anchor>,
8254 display_snapshot: &DisplaySnapshot,
8255 count: usize,
8256 ) -> Vec<RangeInclusive<DisplayPoint>> {
8257 let mut results = Vec::new();
8258 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8259 return vec![];
8260 };
8261
8262 let start_ix = match ranges.binary_search_by(|probe| {
8263 let cmp = probe
8264 .end
8265 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8266 if cmp.is_gt() {
8267 Ordering::Greater
8268 } else {
8269 Ordering::Less
8270 }
8271 }) {
8272 Ok(i) | Err(i) => i,
8273 };
8274 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8275 if let (Some(start_display), Some(end_display)) = (start, end) {
8276 results.push(
8277 start_display.to_display_point(display_snapshot)
8278 ..=end_display.to_display_point(display_snapshot),
8279 );
8280 }
8281 };
8282 let mut start_row: Option<Point> = None;
8283 let mut end_row: Option<Point> = None;
8284 if ranges.len() > count {
8285 return Vec::new();
8286 }
8287 for range in &ranges[start_ix..] {
8288 if range
8289 .start
8290 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8291 .is_ge()
8292 {
8293 break;
8294 }
8295 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8296 if let Some(current_row) = &end_row {
8297 if end.row == current_row.row {
8298 continue;
8299 }
8300 }
8301 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8302 if start_row.is_none() {
8303 assert_eq!(end_row, None);
8304 start_row = Some(start);
8305 end_row = Some(end);
8306 continue;
8307 }
8308 if let Some(current_end) = end_row.as_mut() {
8309 if start.row > current_end.row + 1 {
8310 push_region(start_row, end_row);
8311 start_row = Some(start);
8312 end_row = Some(end);
8313 } else {
8314 // Merge two hunks.
8315 *current_end = end;
8316 }
8317 } else {
8318 unreachable!();
8319 }
8320 }
8321 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8322 push_region(start_row, end_row);
8323 results
8324 }
8325
8326 pub fn highlight_text<T: 'static>(
8327 &mut self,
8328 ranges: Vec<Range<Anchor>>,
8329 style: HighlightStyle,
8330 cx: &mut ViewContext<Self>,
8331 ) {
8332 self.display_map.update(cx, |map, _| {
8333 map.highlight_text(TypeId::of::<T>(), ranges, style)
8334 });
8335 cx.notify();
8336 }
8337
8338 pub(crate) fn highlight_inlays<T: 'static>(
8339 &mut self,
8340 highlights: Vec<InlayHighlight>,
8341 style: HighlightStyle,
8342 cx: &mut ViewContext<Self>,
8343 ) {
8344 self.display_map.update(cx, |map, _| {
8345 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8346 });
8347 cx.notify();
8348 }
8349
8350 pub fn text_highlights<'a, T: 'static>(
8351 &'a self,
8352 cx: &'a AppContext,
8353 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8354 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8355 }
8356
8357 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8358 let cleared = self
8359 .display_map
8360 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8361 if cleared {
8362 cx.notify();
8363 }
8364 }
8365
8366 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8367 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8368 && self.focus_handle.is_focused(cx)
8369 }
8370
8371 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8372 cx.notify();
8373 }
8374
8375 fn on_buffer_event(
8376 &mut self,
8377 multibuffer: Model<MultiBuffer>,
8378 event: &multi_buffer::Event,
8379 cx: &mut ViewContext<Self>,
8380 ) {
8381 match event {
8382 multi_buffer::Event::Edited {
8383 singleton_buffer_edited,
8384 } => {
8385 self.refresh_active_diagnostics(cx);
8386 self.refresh_code_actions(cx);
8387 if self.has_active_copilot_suggestion(cx) {
8388 self.update_visible_copilot_suggestion(cx);
8389 }
8390 cx.emit(EditorEvent::BufferEdited);
8391 cx.emit(SearchEvent::MatchesInvalidated);
8392
8393 if *singleton_buffer_edited {
8394 if let Some(project) = &self.project {
8395 let project = project.read(cx);
8396 let languages_affected = multibuffer
8397 .read(cx)
8398 .all_buffers()
8399 .into_iter()
8400 .filter_map(|buffer| {
8401 let buffer = buffer.read(cx);
8402 let language = buffer.language()?;
8403 if project.is_local()
8404 && project.language_servers_for_buffer(buffer, cx).count() == 0
8405 {
8406 None
8407 } else {
8408 Some(language)
8409 }
8410 })
8411 .cloned()
8412 .collect::<HashSet<_>>();
8413 if !languages_affected.is_empty() {
8414 self.refresh_inlay_hints(
8415 InlayHintRefreshReason::BufferEdited(languages_affected),
8416 cx,
8417 );
8418 }
8419 }
8420 }
8421
8422 let Some(project) = &self.project else { return };
8423 let telemetry = project.read(cx).client().telemetry().clone();
8424 telemetry.log_edit_event("editor");
8425 }
8426 multi_buffer::Event::ExcerptsAdded {
8427 buffer,
8428 predecessor,
8429 excerpts,
8430 } => {
8431 cx.emit(EditorEvent::ExcerptsAdded {
8432 buffer: buffer.clone(),
8433 predecessor: *predecessor,
8434 excerpts: excerpts.clone(),
8435 });
8436 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8437 }
8438 multi_buffer::Event::ExcerptsRemoved { ids } => {
8439 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8440 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8441 }
8442 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8443 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8444 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8445 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8446 cx.emit(EditorEvent::TitleChanged)
8447 }
8448 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8449 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8450 multi_buffer::Event::DiagnosticsUpdated => {
8451 self.refresh_active_diagnostics(cx);
8452 }
8453 _ => {}
8454 };
8455 }
8456
8457 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8458 cx.notify();
8459 }
8460
8461 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8462 self.refresh_copilot_suggestions(true, cx);
8463 self.refresh_inlay_hints(
8464 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8465 self.selections.newest_anchor().head(),
8466 &self.buffer.read(cx).snapshot(cx),
8467 cx,
8468 )),
8469 cx,
8470 );
8471 cx.notify();
8472 }
8473
8474 pub fn set_searchable(&mut self, searchable: bool) {
8475 self.searchable = searchable;
8476 }
8477
8478 pub fn searchable(&self) -> bool {
8479 self.searchable
8480 }
8481
8482 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8483 let buffer = self.buffer.read(cx);
8484 if buffer.is_singleton() {
8485 cx.propagate();
8486 return;
8487 }
8488
8489 let Some(workspace) = self.workspace() else {
8490 cx.propagate();
8491 return;
8492 };
8493
8494 let mut new_selections_by_buffer = HashMap::default();
8495 for selection in self.selections.all::<usize>(cx) {
8496 for (buffer, mut range, _) in
8497 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8498 {
8499 if selection.reversed {
8500 mem::swap(&mut range.start, &mut range.end);
8501 }
8502 new_selections_by_buffer
8503 .entry(buffer)
8504 .or_insert(Vec::new())
8505 .push(range)
8506 }
8507 }
8508
8509 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8510
8511 // We defer the pane interaction because we ourselves are a workspace item
8512 // and activating a new item causes the pane to call a method on us reentrantly,
8513 // which panics if we're on the stack.
8514 cx.window_context().defer(move |cx| {
8515 workspace.update(cx, |workspace, cx| {
8516 let pane = workspace.active_pane().clone();
8517 pane.update(cx, |pane, _| pane.disable_history());
8518
8519 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8520 let editor = workspace.open_project_item::<Self>(buffer, cx);
8521 editor.update(cx, |editor, cx| {
8522 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8523 s.select_ranges(ranges);
8524 });
8525 });
8526 }
8527
8528 pane.update(cx, |pane, _| pane.enable_history());
8529 })
8530 });
8531 }
8532
8533 fn jump(
8534 &mut self,
8535 path: ProjectPath,
8536 position: Point,
8537 anchor: language::Anchor,
8538 cx: &mut ViewContext<Self>,
8539 ) {
8540 let workspace = self.workspace();
8541 cx.spawn(|_, mut cx| async move {
8542 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8543 let editor = workspace.update(&mut cx, |workspace, cx| {
8544 workspace.open_path(path, None, true, cx)
8545 })?;
8546 let editor = editor
8547 .await?
8548 .downcast::<Editor>()
8549 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8550 .downgrade();
8551 editor.update(&mut cx, |editor, cx| {
8552 let buffer = editor
8553 .buffer()
8554 .read(cx)
8555 .as_singleton()
8556 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8557 let buffer = buffer.read(cx);
8558 let cursor = if buffer.can_resolve(&anchor) {
8559 language::ToPoint::to_point(&anchor, buffer)
8560 } else {
8561 buffer.clip_point(position, Bias::Left)
8562 };
8563
8564 let nav_history = editor.nav_history.take();
8565 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8566 s.select_ranges([cursor..cursor]);
8567 });
8568 editor.nav_history = nav_history;
8569
8570 anyhow::Ok(())
8571 })??;
8572
8573 anyhow::Ok(())
8574 })
8575 .detach_and_log_err(cx);
8576 }
8577
8578 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8579 let snapshot = self.buffer.read(cx).read(cx);
8580 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8581 Some(
8582 ranges
8583 .iter()
8584 .map(move |range| {
8585 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8586 })
8587 .collect(),
8588 )
8589 }
8590
8591 fn selection_replacement_ranges(
8592 &self,
8593 range: Range<OffsetUtf16>,
8594 cx: &AppContext,
8595 ) -> Vec<Range<OffsetUtf16>> {
8596 let selections = self.selections.all::<OffsetUtf16>(cx);
8597 let newest_selection = selections
8598 .iter()
8599 .max_by_key(|selection| selection.id)
8600 .unwrap();
8601 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8602 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8603 let snapshot = self.buffer.read(cx).read(cx);
8604 selections
8605 .into_iter()
8606 .map(|mut selection| {
8607 selection.start.0 =
8608 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8609 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8610 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8611 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8612 })
8613 .collect()
8614 }
8615
8616 fn report_copilot_event(
8617 &self,
8618 suggestion_id: Option<String>,
8619 suggestion_accepted: bool,
8620 cx: &AppContext,
8621 ) {
8622 let Some(project) = &self.project else { return };
8623
8624 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8625 let file_extension = self
8626 .buffer
8627 .read(cx)
8628 .as_singleton()
8629 .and_then(|b| b.read(cx).file())
8630 .and_then(|file| Path::new(file.file_name(cx)).extension())
8631 .and_then(|e| e.to_str())
8632 .map(|a| a.to_string());
8633
8634 let telemetry = project.read(cx).client().telemetry().clone();
8635
8636 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8637 }
8638
8639 #[cfg(any(test, feature = "test-support"))]
8640 fn report_editor_event(
8641 &self,
8642 _operation: &'static str,
8643 _file_extension: Option<String>,
8644 _cx: &AppContext,
8645 ) {
8646 }
8647
8648 #[cfg(not(any(test, feature = "test-support")))]
8649 fn report_editor_event(
8650 &self,
8651 operation: &'static str,
8652 file_extension: Option<String>,
8653 cx: &AppContext,
8654 ) {
8655 let Some(project) = &self.project else { return };
8656
8657 // If None, we are in a file without an extension
8658 let file = self
8659 .buffer
8660 .read(cx)
8661 .as_singleton()
8662 .and_then(|b| b.read(cx).file());
8663 let file_extension = file_extension.or(file
8664 .as_ref()
8665 .and_then(|file| Path::new(file.file_name(cx)).extension())
8666 .and_then(|e| e.to_str())
8667 .map(|a| a.to_string()));
8668
8669 let vim_mode = cx
8670 .global::<SettingsStore>()
8671 .raw_user_settings()
8672 .get("vim_mode")
8673 == Some(&serde_json::Value::Bool(true));
8674 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8675 let copilot_enabled_for_language = self
8676 .buffer
8677 .read(cx)
8678 .settings_at(0, cx)
8679 .show_copilot_suggestions;
8680
8681 let telemetry = project.read(cx).client().telemetry().clone();
8682 telemetry.report_editor_event(
8683 file_extension,
8684 vim_mode,
8685 operation,
8686 copilot_enabled,
8687 copilot_enabled_for_language,
8688 )
8689 }
8690
8691 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8692 /// with each line being an array of {text, highlight} objects.
8693 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8694 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8695 return;
8696 };
8697
8698 #[derive(Serialize)]
8699 struct Chunk<'a> {
8700 text: String,
8701 highlight: Option<&'a str>,
8702 }
8703
8704 let snapshot = buffer.read(cx).snapshot();
8705 let range = self
8706 .selected_text_range(cx)
8707 .and_then(|selected_range| {
8708 if selected_range.is_empty() {
8709 None
8710 } else {
8711 Some(selected_range)
8712 }
8713 })
8714 .unwrap_or_else(|| 0..snapshot.len());
8715
8716 let chunks = snapshot.chunks(range, true);
8717 let mut lines = Vec::new();
8718 let mut line: VecDeque<Chunk> = VecDeque::new();
8719
8720 let Some(style) = self.style.as_ref() else {
8721 return;
8722 };
8723
8724 for chunk in chunks {
8725 let highlight = chunk
8726 .syntax_highlight_id
8727 .and_then(|id| id.name(&style.syntax));
8728 let mut chunk_lines = chunk.text.split("\n").peekable();
8729 while let Some(text) = chunk_lines.next() {
8730 let mut merged_with_last_token = false;
8731 if let Some(last_token) = line.back_mut() {
8732 if last_token.highlight == highlight {
8733 last_token.text.push_str(text);
8734 merged_with_last_token = true;
8735 }
8736 }
8737
8738 if !merged_with_last_token {
8739 line.push_back(Chunk {
8740 text: text.into(),
8741 highlight,
8742 });
8743 }
8744
8745 if chunk_lines.peek().is_some() {
8746 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8747 line.pop_front();
8748 }
8749 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8750 line.pop_back();
8751 }
8752
8753 lines.push(mem::take(&mut line));
8754 }
8755 }
8756 }
8757
8758 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8759 return;
8760 };
8761 cx.write_to_clipboard(ClipboardItem::new(lines));
8762 }
8763
8764 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8765 &self.inlay_hint_cache
8766 }
8767
8768 pub fn replay_insert_event(
8769 &mut self,
8770 text: &str,
8771 relative_utf16_range: Option<Range<isize>>,
8772 cx: &mut ViewContext<Self>,
8773 ) {
8774 if !self.input_enabled {
8775 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8776 return;
8777 }
8778 if let Some(relative_utf16_range) = relative_utf16_range {
8779 let selections = self.selections.all::<OffsetUtf16>(cx);
8780 self.change_selections(None, cx, |s| {
8781 let new_ranges = selections.into_iter().map(|range| {
8782 let start = OffsetUtf16(
8783 range
8784 .head()
8785 .0
8786 .saturating_add_signed(relative_utf16_range.start),
8787 );
8788 let end = OffsetUtf16(
8789 range
8790 .head()
8791 .0
8792 .saturating_add_signed(relative_utf16_range.end),
8793 );
8794 start..end
8795 });
8796 s.select_ranges(new_ranges);
8797 });
8798 }
8799
8800 self.handle_input(text, cx);
8801 }
8802
8803 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8804 let Some(project) = self.project.as_ref() else {
8805 return false;
8806 };
8807 let project = project.read(cx);
8808
8809 let mut supports = false;
8810 self.buffer().read(cx).for_each_buffer(|buffer| {
8811 if !supports {
8812 supports = project
8813 .language_servers_for_buffer(buffer.read(cx), cx)
8814 .any(
8815 |(_, server)| match server.capabilities().inlay_hint_provider {
8816 Some(lsp::OneOf::Left(enabled)) => enabled,
8817 Some(lsp::OneOf::Right(_)) => true,
8818 None => false,
8819 },
8820 )
8821 }
8822 });
8823 supports
8824 }
8825
8826 pub fn focus(&self, cx: &mut WindowContext) {
8827 cx.focus(&self.focus_handle)
8828 }
8829
8830 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8831 self.focus_handle.is_focused(cx)
8832 }
8833
8834 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8835 cx.emit(EditorEvent::Focused);
8836
8837 if let Some(rename) = self.pending_rename.as_ref() {
8838 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8839 cx.focus(&rename_editor_focus_handle);
8840 } else {
8841 self.blink_manager.update(cx, BlinkManager::enable);
8842 self.show_cursor_names(cx);
8843 self.buffer.update(cx, |buffer, cx| {
8844 buffer.finalize_last_transaction(cx);
8845 if self.leader_peer_id.is_none() {
8846 buffer.set_active_selections(
8847 &self.selections.disjoint_anchors(),
8848 self.selections.line_mode,
8849 self.cursor_shape,
8850 cx,
8851 );
8852 }
8853 });
8854 }
8855 }
8856
8857 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
8858 self.blink_manager.update(cx, BlinkManager::disable);
8859 self.buffer
8860 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
8861 self.hide_context_menu(cx);
8862 hide_hover(self, cx);
8863 cx.emit(EditorEvent::Blurred);
8864 cx.notify();
8865 }
8866
8867 pub fn register_action<A: Action>(
8868 &mut self,
8869 listener: impl Fn(&A, &mut WindowContext) + 'static,
8870 ) -> &mut Self {
8871 let listener = Arc::new(listener);
8872
8873 self.editor_actions.push(Box::new(move |cx| {
8874 let _view = cx.view().clone();
8875 let cx = cx.window_context();
8876 let listener = listener.clone();
8877 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
8878 let action = action.downcast_ref().unwrap();
8879 if phase == DispatchPhase::Bubble {
8880 listener(action, cx)
8881 }
8882 })
8883 }));
8884 self
8885 }
8886}
8887
8888pub trait CollaborationHub {
8889 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
8890 fn user_participant_indices<'a>(
8891 &self,
8892 cx: &'a AppContext,
8893 ) -> &'a HashMap<u64, ParticipantIndex>;
8894 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
8895}
8896
8897impl CollaborationHub for Model<Project> {
8898 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
8899 self.read(cx).collaborators()
8900 }
8901
8902 fn user_participant_indices<'a>(
8903 &self,
8904 cx: &'a AppContext,
8905 ) -> &'a HashMap<u64, ParticipantIndex> {
8906 self.read(cx).user_store().read(cx).participant_indices()
8907 }
8908
8909 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
8910 let this = self.read(cx);
8911 let user_ids = this.collaborators().values().map(|c| c.user_id);
8912 this.user_store().read_with(cx, |user_store, cx| {
8913 user_store.participant_names(user_ids, cx)
8914 })
8915 }
8916}
8917
8918pub trait CompletionProvider {
8919 fn completions(
8920 &self,
8921 buffer: &Model<Buffer>,
8922 buffer_position: text::Anchor,
8923 cx: &mut ViewContext<Editor>,
8924 ) -> Task<Result<Vec<Completion>>>;
8925
8926 fn resolve_completions(
8927 &self,
8928 completion_indices: Vec<usize>,
8929 completions: Arc<RwLock<Box<[Completion]>>>,
8930 cx: &mut ViewContext<Editor>,
8931 ) -> Task<Result<bool>>;
8932
8933 fn apply_additional_edits_for_completion(
8934 &self,
8935 buffer: Model<Buffer>,
8936 completion: Completion,
8937 push_to_history: bool,
8938 cx: &mut ViewContext<Editor>,
8939 ) -> Task<Result<Option<language::Transaction>>>;
8940}
8941
8942impl CompletionProvider for Model<Project> {
8943 fn completions(
8944 &self,
8945 buffer: &Model<Buffer>,
8946 buffer_position: text::Anchor,
8947 cx: &mut ViewContext<Editor>,
8948 ) -> Task<Result<Vec<Completion>>> {
8949 self.update(cx, |project, cx| {
8950 project.completions(&buffer, buffer_position, cx)
8951 })
8952 }
8953
8954 fn resolve_completions(
8955 &self,
8956 completion_indices: Vec<usize>,
8957 completions: Arc<RwLock<Box<[Completion]>>>,
8958 cx: &mut ViewContext<Editor>,
8959 ) -> Task<Result<bool>> {
8960 self.update(cx, |project, cx| {
8961 project.resolve_completions(completion_indices, completions, cx)
8962 })
8963 }
8964
8965 fn apply_additional_edits_for_completion(
8966 &self,
8967 buffer: Model<Buffer>,
8968 completion: Completion,
8969 push_to_history: bool,
8970 cx: &mut ViewContext<Editor>,
8971 ) -> Task<Result<Option<language::Transaction>>> {
8972 self.update(cx, |project, cx| {
8973 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
8974 })
8975 }
8976}
8977
8978fn inlay_hint_settings(
8979 location: Anchor,
8980 snapshot: &MultiBufferSnapshot,
8981 cx: &mut ViewContext<'_, Editor>,
8982) -> InlayHintSettings {
8983 let file = snapshot.file_at(location);
8984 let language = snapshot.language_at(location);
8985 let settings = all_language_settings(file, cx);
8986 settings
8987 .language(language.map(|l| l.name()).as_deref())
8988 .inlay_hints
8989}
8990
8991fn consume_contiguous_rows(
8992 contiguous_row_selections: &mut Vec<Selection<Point>>,
8993 selection: &Selection<Point>,
8994 display_map: &DisplaySnapshot,
8995 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
8996) -> (u32, u32) {
8997 contiguous_row_selections.push(selection.clone());
8998 let start_row = selection.start.row;
8999 let mut end_row = ending_row(selection, display_map);
9000
9001 while let Some(next_selection) = selections.peek() {
9002 if next_selection.start.row <= end_row {
9003 end_row = ending_row(next_selection, display_map);
9004 contiguous_row_selections.push(selections.next().unwrap().clone());
9005 } else {
9006 break;
9007 }
9008 }
9009 (start_row, end_row)
9010}
9011
9012fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9013 if next_selection.end.column > 0 || next_selection.is_empty() {
9014 display_map.next_line_boundary(next_selection.end).0.row + 1
9015 } else {
9016 next_selection.end.row
9017 }
9018}
9019
9020impl EditorSnapshot {
9021 pub fn remote_selections_in_range<'a>(
9022 &'a self,
9023 range: &'a Range<Anchor>,
9024 collaboration_hub: &dyn CollaborationHub,
9025 cx: &'a AppContext,
9026 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9027 let participant_names = collaboration_hub.user_names(cx);
9028 let participant_indices = collaboration_hub.user_participant_indices(cx);
9029 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9030 let collaborators_by_replica_id = collaborators_by_peer_id
9031 .iter()
9032 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9033 .collect::<HashMap<_, _>>();
9034 self.buffer_snapshot
9035 .remote_selections_in_range(range)
9036 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9037 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9038 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9039 let user_name = participant_names.get(&collaborator.user_id).cloned();
9040 Some(RemoteSelection {
9041 replica_id,
9042 selection,
9043 cursor_shape,
9044 line_mode,
9045 participant_index,
9046 peer_id: collaborator.peer_id,
9047 user_name,
9048 })
9049 })
9050 }
9051
9052 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9053 self.display_snapshot.buffer_snapshot.language_at(position)
9054 }
9055
9056 pub fn is_focused(&self) -> bool {
9057 self.is_focused
9058 }
9059
9060 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9061 self.placeholder_text.as_ref()
9062 }
9063
9064 pub fn scroll_position(&self) -> gpui::Point<f32> {
9065 self.scroll_anchor.scroll_position(&self.display_snapshot)
9066 }
9067}
9068
9069impl Deref for EditorSnapshot {
9070 type Target = DisplaySnapshot;
9071
9072 fn deref(&self) -> &Self::Target {
9073 &self.display_snapshot
9074 }
9075}
9076
9077#[derive(Clone, Debug, PartialEq, Eq)]
9078pub enum EditorEvent {
9079 InputIgnored {
9080 text: Arc<str>,
9081 },
9082 InputHandled {
9083 utf16_range_to_replace: Option<Range<isize>>,
9084 text: Arc<str>,
9085 },
9086 ExcerptsAdded {
9087 buffer: Model<Buffer>,
9088 predecessor: ExcerptId,
9089 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9090 },
9091 ExcerptsRemoved {
9092 ids: Vec<ExcerptId>,
9093 },
9094 BufferEdited,
9095 Edited,
9096 Reparsed,
9097 Focused,
9098 Blurred,
9099 DirtyChanged,
9100 Saved,
9101 TitleChanged,
9102 DiffBaseChanged,
9103 SelectionsChanged {
9104 local: bool,
9105 },
9106 ScrollPositionChanged {
9107 local: bool,
9108 autoscroll: bool,
9109 },
9110 Closed,
9111}
9112
9113impl EventEmitter<EditorEvent> for Editor {}
9114
9115impl FocusableView for Editor {
9116 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9117 self.focus_handle.clone()
9118 }
9119}
9120
9121impl Render for Editor {
9122 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9123 let settings = ThemeSettings::get_global(cx);
9124 let text_style = match self.mode {
9125 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9126 color: cx.theme().colors().editor_foreground,
9127 font_family: settings.ui_font.family.clone(),
9128 font_features: settings.ui_font.features,
9129 font_size: rems(0.875).into(),
9130 font_weight: FontWeight::NORMAL,
9131 font_style: FontStyle::Normal,
9132 line_height: relative(settings.buffer_line_height.value()),
9133 background_color: None,
9134 underline: None,
9135 white_space: WhiteSpace::Normal,
9136 },
9137
9138 EditorMode::Full => TextStyle {
9139 color: cx.theme().colors().editor_foreground,
9140 font_family: settings.buffer_font.family.clone(),
9141 font_features: settings.buffer_font.features,
9142 font_size: settings.buffer_font_size(cx).into(),
9143 font_weight: FontWeight::NORMAL,
9144 font_style: FontStyle::Normal,
9145 line_height: relative(settings.buffer_line_height.value()),
9146 background_color: None,
9147 underline: None,
9148 white_space: WhiteSpace::Normal,
9149 },
9150 };
9151
9152 let background = match self.mode {
9153 EditorMode::SingleLine => cx.theme().system().transparent,
9154 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9155 EditorMode::Full => cx.theme().colors().editor_background,
9156 };
9157
9158 EditorElement::new(
9159 cx.view(),
9160 EditorStyle {
9161 background,
9162 local_player: cx.theme().players().local(),
9163 text: text_style,
9164 scrollbar_width: px(12.),
9165 syntax: cx.theme().syntax().clone(),
9166 status: cx.theme().status().clone(),
9167 inlays_style: HighlightStyle {
9168 color: Some(cx.theme().status().hint),
9169 font_weight: Some(FontWeight::BOLD),
9170 ..HighlightStyle::default()
9171 },
9172 suggestions_style: HighlightStyle {
9173 color: Some(cx.theme().status().predictive),
9174 ..HighlightStyle::default()
9175 },
9176 },
9177 )
9178 }
9179}
9180
9181impl ViewInputHandler for Editor {
9182 fn text_for_range(
9183 &mut self,
9184 range_utf16: Range<usize>,
9185 cx: &mut ViewContext<Self>,
9186 ) -> Option<String> {
9187 Some(
9188 self.buffer
9189 .read(cx)
9190 .read(cx)
9191 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9192 .collect(),
9193 )
9194 }
9195
9196 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9197 // Prevent the IME menu from appearing when holding down an alphabetic key
9198 // while input is disabled.
9199 if !self.input_enabled {
9200 return None;
9201 }
9202
9203 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9204 Some(range.start.0..range.end.0)
9205 }
9206
9207 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9208 let snapshot = self.buffer.read(cx).read(cx);
9209 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9210 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9211 }
9212
9213 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9214 self.clear_highlights::<InputComposition>(cx);
9215 self.ime_transaction.take();
9216 }
9217
9218 fn replace_text_in_range(
9219 &mut self,
9220 range_utf16: Option<Range<usize>>,
9221 text: &str,
9222 cx: &mut ViewContext<Self>,
9223 ) {
9224 if !self.input_enabled {
9225 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9226 return;
9227 }
9228
9229 self.transact(cx, |this, cx| {
9230 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9231 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9232 Some(this.selection_replacement_ranges(range_utf16, cx))
9233 } else {
9234 this.marked_text_ranges(cx)
9235 };
9236
9237 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9238 let newest_selection_id = this.selections.newest_anchor().id;
9239 this.selections
9240 .all::<OffsetUtf16>(cx)
9241 .iter()
9242 .zip(ranges_to_replace.iter())
9243 .find_map(|(selection, range)| {
9244 if selection.id == newest_selection_id {
9245 Some(
9246 (range.start.0 as isize - selection.head().0 as isize)
9247 ..(range.end.0 as isize - selection.head().0 as isize),
9248 )
9249 } else {
9250 None
9251 }
9252 })
9253 });
9254
9255 cx.emit(EditorEvent::InputHandled {
9256 utf16_range_to_replace: range_to_replace,
9257 text: text.into(),
9258 });
9259
9260 if let Some(new_selected_ranges) = new_selected_ranges {
9261 this.change_selections(None, cx, |selections| {
9262 selections.select_ranges(new_selected_ranges)
9263 });
9264 }
9265
9266 this.handle_input(text, cx);
9267 });
9268
9269 if let Some(transaction) = self.ime_transaction {
9270 self.buffer.update(cx, |buffer, cx| {
9271 buffer.group_until_transaction(transaction, cx);
9272 });
9273 }
9274
9275 self.unmark_text(cx);
9276 }
9277
9278 fn replace_and_mark_text_in_range(
9279 &mut self,
9280 range_utf16: Option<Range<usize>>,
9281 text: &str,
9282 new_selected_range_utf16: Option<Range<usize>>,
9283 cx: &mut ViewContext<Self>,
9284 ) {
9285 if !self.input_enabled {
9286 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9287 return;
9288 }
9289
9290 let transaction = self.transact(cx, |this, cx| {
9291 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9292 let snapshot = this.buffer.read(cx).read(cx);
9293 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9294 for marked_range in &mut marked_ranges {
9295 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9296 marked_range.start.0 += relative_range_utf16.start;
9297 marked_range.start =
9298 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9299 marked_range.end =
9300 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9301 }
9302 }
9303 Some(marked_ranges)
9304 } else if let Some(range_utf16) = range_utf16 {
9305 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9306 Some(this.selection_replacement_ranges(range_utf16, cx))
9307 } else {
9308 None
9309 };
9310
9311 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9312 let newest_selection_id = this.selections.newest_anchor().id;
9313 this.selections
9314 .all::<OffsetUtf16>(cx)
9315 .iter()
9316 .zip(ranges_to_replace.iter())
9317 .find_map(|(selection, range)| {
9318 if selection.id == newest_selection_id {
9319 Some(
9320 (range.start.0 as isize - selection.head().0 as isize)
9321 ..(range.end.0 as isize - selection.head().0 as isize),
9322 )
9323 } else {
9324 None
9325 }
9326 })
9327 });
9328
9329 cx.emit(EditorEvent::InputHandled {
9330 utf16_range_to_replace: range_to_replace,
9331 text: text.into(),
9332 });
9333
9334 if let Some(ranges) = ranges_to_replace {
9335 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9336 }
9337
9338 let marked_ranges = {
9339 let snapshot = this.buffer.read(cx).read(cx);
9340 this.selections
9341 .disjoint_anchors()
9342 .iter()
9343 .map(|selection| {
9344 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9345 })
9346 .collect::<Vec<_>>()
9347 };
9348
9349 if text.is_empty() {
9350 this.unmark_text(cx);
9351 } else {
9352 this.highlight_text::<InputComposition>(
9353 marked_ranges.clone(),
9354 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9355 cx,
9356 );
9357 }
9358
9359 this.handle_input(text, cx);
9360
9361 if let Some(new_selected_range) = new_selected_range_utf16 {
9362 let snapshot = this.buffer.read(cx).read(cx);
9363 let new_selected_ranges = marked_ranges
9364 .into_iter()
9365 .map(|marked_range| {
9366 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9367 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9368 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9369 snapshot.clip_offset_utf16(new_start, Bias::Left)
9370 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9371 })
9372 .collect::<Vec<_>>();
9373
9374 drop(snapshot);
9375 this.change_selections(None, cx, |selections| {
9376 selections.select_ranges(new_selected_ranges)
9377 });
9378 }
9379 });
9380
9381 self.ime_transaction = self.ime_transaction.or(transaction);
9382 if let Some(transaction) = self.ime_transaction {
9383 self.buffer.update(cx, |buffer, cx| {
9384 buffer.group_until_transaction(transaction, cx);
9385 });
9386 }
9387
9388 if self.text_highlights::<InputComposition>(cx).is_none() {
9389 self.ime_transaction.take();
9390 }
9391 }
9392
9393 fn bounds_for_range(
9394 &mut self,
9395 range_utf16: Range<usize>,
9396 element_bounds: gpui::Bounds<Pixels>,
9397 cx: &mut ViewContext<Self>,
9398 ) -> Option<gpui::Bounds<Pixels>> {
9399 let text_layout_details = self.text_layout_details(cx);
9400 let style = &text_layout_details.editor_style;
9401 let font_id = cx.text_system().resolve_font(&style.text.font());
9402 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9403 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9404 let em_width = cx
9405 .text_system()
9406 .typographic_bounds(font_id, font_size, 'm')
9407 .unwrap()
9408 .size
9409 .width;
9410
9411 let snapshot = self.snapshot(cx);
9412 let scroll_position = snapshot.scroll_position();
9413 let scroll_left = scroll_position.x * em_width;
9414
9415 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9416 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9417 + self.gutter_width;
9418 let y = line_height * (start.row() as f32 - scroll_position.y);
9419
9420 Some(Bounds {
9421 origin: element_bounds.origin + point(x, y),
9422 size: size(em_width, line_height),
9423 })
9424 }
9425}
9426
9427trait SelectionExt {
9428 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9429 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9430 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9431 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9432 -> Range<u32>;
9433}
9434
9435impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9436 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9437 let start = self.start.to_point(buffer);
9438 let end = self.end.to_point(buffer);
9439 if self.reversed {
9440 end..start
9441 } else {
9442 start..end
9443 }
9444 }
9445
9446 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9447 let start = self.start.to_offset(buffer);
9448 let end = self.end.to_offset(buffer);
9449 if self.reversed {
9450 end..start
9451 } else {
9452 start..end
9453 }
9454 }
9455
9456 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9457 let start = self
9458 .start
9459 .to_point(&map.buffer_snapshot)
9460 .to_display_point(map);
9461 let end = self
9462 .end
9463 .to_point(&map.buffer_snapshot)
9464 .to_display_point(map);
9465 if self.reversed {
9466 end..start
9467 } else {
9468 start..end
9469 }
9470 }
9471
9472 fn spanned_rows(
9473 &self,
9474 include_end_if_at_line_start: bool,
9475 map: &DisplaySnapshot,
9476 ) -> Range<u32> {
9477 let start = self.start.to_point(&map.buffer_snapshot);
9478 let mut end = self.end.to_point(&map.buffer_snapshot);
9479 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9480 end.row -= 1;
9481 }
9482
9483 let buffer_start = map.prev_line_boundary(start).0;
9484 let buffer_end = map.next_line_boundary(end).0;
9485 buffer_start.row..buffer_end.row + 1
9486 }
9487}
9488
9489impl<T: InvalidationRegion> InvalidationStack<T> {
9490 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9491 where
9492 S: Clone + ToOffset,
9493 {
9494 while let Some(region) = self.last() {
9495 let all_selections_inside_invalidation_ranges =
9496 if selections.len() == region.ranges().len() {
9497 selections
9498 .iter()
9499 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9500 .all(|(selection, invalidation_range)| {
9501 let head = selection.head().to_offset(buffer);
9502 invalidation_range.start <= head && invalidation_range.end >= head
9503 })
9504 } else {
9505 false
9506 };
9507
9508 if all_selections_inside_invalidation_ranges {
9509 break;
9510 } else {
9511 self.pop();
9512 }
9513 }
9514 }
9515}
9516
9517impl<T> Default for InvalidationStack<T> {
9518 fn default() -> Self {
9519 Self(Default::default())
9520 }
9521}
9522
9523impl<T> Deref for InvalidationStack<T> {
9524 type Target = Vec<T>;
9525
9526 fn deref(&self) -> &Self::Target {
9527 &self.0
9528 }
9529}
9530
9531impl<T> DerefMut for InvalidationStack<T> {
9532 fn deref_mut(&mut self) -> &mut Self::Target {
9533 &mut self.0
9534 }
9535}
9536
9537impl InvalidationRegion for SnippetState {
9538 fn ranges(&self) -> &[Range<Anchor>] {
9539 &self.ranges[self.active_index]
9540 }
9541}
9542
9543pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9544 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9545
9546 Arc::new(move |cx: &mut BlockContext| {
9547 let color = Some(cx.theme().colors().text_accent);
9548 let group_id: SharedString = cx.block_id.to_string().into();
9549 // TODO: Nate: We should tint the background of the block with the severity color
9550 // We need to extend the theme before we can do this
9551 h_flex()
9552 .id(cx.block_id)
9553 .group(group_id.clone())
9554 .relative()
9555 .pl(cx.anchor_x)
9556 .size_full()
9557 .gap_2()
9558 .child(
9559 StyledText::new(text_without_backticks.clone()).with_highlights(
9560 &cx.text_style(),
9561 code_ranges.iter().map(|range| {
9562 (
9563 range.clone(),
9564 HighlightStyle {
9565 color,
9566 ..Default::default()
9567 },
9568 )
9569 }),
9570 ),
9571 )
9572 .child(
9573 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9574 .icon_color(Color::Muted)
9575 .size(ButtonSize::Compact)
9576 .style(ButtonStyle::Transparent)
9577 .visible_on_hover(group_id)
9578 .on_click(cx.listener({
9579 let message = diagnostic.message.clone();
9580 move |_, _, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9581 }))
9582 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9583 )
9584 .into_any_element()
9585 })
9586}
9587
9588pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9589 let mut text_without_backticks = String::new();
9590 let mut code_ranges = Vec::new();
9591
9592 if let Some(source) = &diagnostic.source {
9593 text_without_backticks.push_str(&source);
9594 code_ranges.push(0..source.len());
9595 text_without_backticks.push_str(": ");
9596 }
9597
9598 let mut prev_offset = 0;
9599 let mut in_code_block = false;
9600 for (ix, _) in diagnostic
9601 .message
9602 .match_indices('`')
9603 .chain([(diagnostic.message.len(), "")])
9604 {
9605 let prev_len = text_without_backticks.len();
9606 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9607 prev_offset = ix + 1;
9608 if in_code_block {
9609 code_ranges.push(prev_len..text_without_backticks.len());
9610 in_code_block = false;
9611 } else {
9612 in_code_block = true;
9613 }
9614 }
9615
9616 (text_without_backticks.into(), code_ranges)
9617}
9618
9619fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9620 match (severity, valid) {
9621 (DiagnosticSeverity::ERROR, true) => colors.error,
9622 (DiagnosticSeverity::ERROR, false) => colors.error,
9623 (DiagnosticSeverity::WARNING, true) => colors.warning,
9624 (DiagnosticSeverity::WARNING, false) => colors.warning,
9625 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9626 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9627 (DiagnosticSeverity::HINT, true) => colors.info,
9628 (DiagnosticSeverity::HINT, false) => colors.info,
9629 _ => colors.ignored,
9630 }
9631}
9632
9633pub fn styled_runs_for_code_label<'a>(
9634 label: &'a CodeLabel,
9635 syntax_theme: &'a theme::SyntaxTheme,
9636) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9637 let fade_out = HighlightStyle {
9638 fade_out: Some(0.35),
9639 ..Default::default()
9640 };
9641
9642 let mut prev_end = label.filter_range.end;
9643 label
9644 .runs
9645 .iter()
9646 .enumerate()
9647 .flat_map(move |(ix, (range, highlight_id))| {
9648 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9649 style
9650 } else {
9651 return Default::default();
9652 };
9653 let mut muted_style = style;
9654 muted_style.highlight(fade_out);
9655
9656 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9657 if range.start >= label.filter_range.end {
9658 if range.start > prev_end {
9659 runs.push((prev_end..range.start, fade_out));
9660 }
9661 runs.push((range.clone(), muted_style));
9662 } else if range.end <= label.filter_range.end {
9663 runs.push((range.clone(), style));
9664 } else {
9665 runs.push((range.start..label.filter_range.end, style));
9666 runs.push((label.filter_range.end..range.end, muted_style));
9667 }
9668 prev_end = cmp::max(prev_end, range.end);
9669
9670 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9671 runs.push((prev_end..label.text.len(), fade_out));
9672 }
9673
9674 runs
9675 })
9676}
9677
9678pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9679 let mut index = 0;
9680 let mut codepoints = text.char_indices().peekable();
9681
9682 std::iter::from_fn(move || {
9683 let start_index = index;
9684 while let Some((new_index, codepoint)) = codepoints.next() {
9685 index = new_index + codepoint.len_utf8();
9686 let current_upper = codepoint.is_uppercase();
9687 let next_upper = codepoints
9688 .peek()
9689 .map(|(_, c)| c.is_uppercase())
9690 .unwrap_or(false);
9691
9692 if !current_upper && next_upper {
9693 return Some(&text[start_index..index]);
9694 }
9695 }
9696
9697 index = text.len();
9698 if start_index < text.len() {
9699 return Some(&text[start_index..]);
9700 }
9701 None
9702 })
9703 .flat_map(|word| word.split_inclusive('_'))
9704 .flat_map(|word| word.split_inclusive('-'))
9705}
9706
9707trait RangeToAnchorExt {
9708 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9709}
9710
9711impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9712 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9713 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9714 }
9715}