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, FontId, FontStyle,
60 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
61 ParentElement, Pixels, 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_delta: 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 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
425pub struct GutterDimensions {
426 pub padding: Pixels,
427 pub width: Pixels,
428 pub margin: Pixels,
429}
430
431impl Default for GutterDimensions {
432 fn default() -> Self {
433 Self {
434 padding: Pixels::ZERO,
435 width: Pixels::ZERO,
436 margin: Pixels::ZERO,
437 }
438 }
439}
440
441#[derive(Debug)]
442pub struct RemoteSelection {
443 pub replica_id: ReplicaId,
444 pub selection: Selection<Anchor>,
445 pub cursor_shape: CursorShape,
446 pub peer_id: PeerId,
447 pub line_mode: bool,
448 pub participant_index: Option<ParticipantIndex>,
449 pub user_name: Option<SharedString>,
450}
451
452#[derive(Clone, Debug)]
453struct SelectionHistoryEntry {
454 selections: Arc<[Selection<Anchor>]>,
455 select_next_state: Option<SelectNextState>,
456 select_prev_state: Option<SelectNextState>,
457 add_selections_state: Option<AddSelectionsState>,
458}
459
460enum SelectionHistoryMode {
461 Normal,
462 Undoing,
463 Redoing,
464}
465
466struct HoveredCursor {
467 replica_id: u16,
468 selection_id: usize,
469}
470
471impl Default for SelectionHistoryMode {
472 fn default() -> Self {
473 Self::Normal
474 }
475}
476
477#[derive(Default)]
478struct SelectionHistory {
479 #[allow(clippy::type_complexity)]
480 selections_by_transaction:
481 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
482 mode: SelectionHistoryMode,
483 undo_stack: VecDeque<SelectionHistoryEntry>,
484 redo_stack: VecDeque<SelectionHistoryEntry>,
485}
486
487impl SelectionHistory {
488 fn insert_transaction(
489 &mut self,
490 transaction_id: TransactionId,
491 selections: Arc<[Selection<Anchor>]>,
492 ) {
493 self.selections_by_transaction
494 .insert(transaction_id, (selections, None));
495 }
496
497 #[allow(clippy::type_complexity)]
498 fn transaction(
499 &self,
500 transaction_id: TransactionId,
501 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
502 self.selections_by_transaction.get(&transaction_id)
503 }
504
505 #[allow(clippy::type_complexity)]
506 fn transaction_mut(
507 &mut self,
508 transaction_id: TransactionId,
509 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
510 self.selections_by_transaction.get_mut(&transaction_id)
511 }
512
513 fn push(&mut self, entry: SelectionHistoryEntry) {
514 if !entry.selections.is_empty() {
515 match self.mode {
516 SelectionHistoryMode::Normal => {
517 self.push_undo(entry);
518 self.redo_stack.clear();
519 }
520 SelectionHistoryMode::Undoing => self.push_redo(entry),
521 SelectionHistoryMode::Redoing => self.push_undo(entry),
522 }
523 }
524 }
525
526 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
527 if self
528 .undo_stack
529 .back()
530 .map_or(true, |e| e.selections != entry.selections)
531 {
532 self.undo_stack.push_back(entry);
533 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
534 self.undo_stack.pop_front();
535 }
536 }
537 }
538
539 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
540 if self
541 .redo_stack
542 .back()
543 .map_or(true, |e| e.selections != entry.selections)
544 {
545 self.redo_stack.push_back(entry);
546 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
547 self.redo_stack.pop_front();
548 }
549 }
550 }
551}
552
553#[derive(Clone, Debug)]
554struct AddSelectionsState {
555 above: bool,
556 stack: Vec<usize>,
557}
558
559#[derive(Clone)]
560struct SelectNextState {
561 query: AhoCorasick,
562 wordwise: bool,
563 done: bool,
564}
565
566impl std::fmt::Debug for SelectNextState {
567 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
568 f.debug_struct(std::any::type_name::<Self>())
569 .field("wordwise", &self.wordwise)
570 .field("done", &self.done)
571 .finish()
572 }
573}
574
575#[derive(Debug)]
576struct AutocloseRegion {
577 selection_id: usize,
578 range: Range<Anchor>,
579 pair: BracketPair,
580}
581
582#[derive(Debug)]
583struct SnippetState {
584 ranges: Vec<Vec<Range<Anchor>>>,
585 active_index: usize,
586}
587
588#[doc(hidden)]
589pub struct RenameState {
590 pub range: Range<Anchor>,
591 pub old_name: Arc<str>,
592 pub editor: View<Editor>,
593 block_id: BlockId,
594}
595
596struct InvalidationStack<T>(Vec<T>);
597
598enum ContextMenu {
599 Completions(CompletionsMenu),
600 CodeActions(CodeActionsMenu),
601}
602
603impl ContextMenu {
604 fn select_first(
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_first(project, cx),
612 ContextMenu::CodeActions(menu) => menu.select_first(cx),
613 }
614 true
615 } else {
616 false
617 }
618 }
619
620 fn select_prev(
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_prev(project, cx),
628 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
629 }
630 true
631 } else {
632 false
633 }
634 }
635
636 fn select_next(
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_next(project, cx),
644 ContextMenu::CodeActions(menu) => menu.select_next(cx),
645 }
646 true
647 } else {
648 false
649 }
650 }
651
652 fn select_last(
653 &mut self,
654 project: Option<&Model<Project>>,
655 cx: &mut ViewContext<Editor>,
656 ) -> bool {
657 if self.visible() {
658 match self {
659 ContextMenu::Completions(menu) => menu.select_last(project, cx),
660 ContextMenu::CodeActions(menu) => menu.select_last(cx),
661 }
662 true
663 } else {
664 false
665 }
666 }
667
668 fn visible(&self) -> bool {
669 match self {
670 ContextMenu::Completions(menu) => menu.visible(),
671 ContextMenu::CodeActions(menu) => menu.visible(),
672 }
673 }
674
675 fn render(
676 &self,
677 cursor_position: DisplayPoint,
678 style: &EditorStyle,
679 max_height: Pixels,
680 workspace: Option<WeakView<Workspace>>,
681 cx: &mut ViewContext<Editor>,
682 ) -> (DisplayPoint, AnyElement) {
683 match self {
684 ContextMenu::Completions(menu) => (
685 cursor_position,
686 menu.render(style, max_height, workspace, cx),
687 ),
688 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
689 }
690 }
691}
692
693#[derive(Clone)]
694struct CompletionsMenu {
695 id: CompletionId,
696 initial_position: Anchor,
697 buffer: Model<Buffer>,
698 completions: Arc<RwLock<Box<[Completion]>>>,
699 match_candidates: Arc<[StringMatchCandidate]>,
700 matches: Arc<[StringMatch]>,
701 selected_item: usize,
702 scroll_handle: UniformListScrollHandle,
703}
704
705impl CompletionsMenu {
706 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
707 self.selected_item = 0;
708 self.scroll_handle.scroll_to_item(self.selected_item);
709 self.attempt_resolve_selected_completion_documentation(project, cx);
710 cx.notify();
711 }
712
713 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
714 if self.selected_item > 0 {
715 self.selected_item -= 1;
716 } else {
717 self.selected_item = self.matches.len() - 1;
718 }
719 self.scroll_handle.scroll_to_item(self.selected_item);
720 self.attempt_resolve_selected_completion_documentation(project, cx);
721 cx.notify();
722 }
723
724 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
725 if self.selected_item + 1 < self.matches.len() {
726 self.selected_item += 1;
727 } else {
728 self.selected_item = 0;
729 }
730 self.scroll_handle.scroll_to_item(self.selected_item);
731 self.attempt_resolve_selected_completion_documentation(project, cx);
732 cx.notify();
733 }
734
735 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
736 self.selected_item = self.matches.len() - 1;
737 self.scroll_handle.scroll_to_item(self.selected_item);
738 self.attempt_resolve_selected_completion_documentation(project, cx);
739 cx.notify();
740 }
741
742 fn pre_resolve_completion_documentation(
743 &self,
744 editor: &Editor,
745 cx: &mut ViewContext<Editor>,
746 ) -> Option<Task<()>> {
747 let settings = EditorSettings::get_global(cx);
748 if !settings.show_completion_documentation {
749 return None;
750 }
751
752 let Some(provider) = editor.completion_provider.as_ref() else {
753 return None;
754 };
755
756 let resolve_task = provider.resolve_completions(
757 self.matches.iter().map(|m| m.candidate_id).collect(),
758 self.completions.clone(),
759 cx,
760 );
761
762 return Some(cx.spawn(move |this, mut cx| async move {
763 if let Some(true) = resolve_task.await.log_err() {
764 this.update(&mut cx, |_, cx| cx.notify()).ok();
765 }
766 }));
767 }
768
769 fn attempt_resolve_selected_completion_documentation(
770 &mut self,
771 project: Option<&Model<Project>>,
772 cx: &mut ViewContext<Editor>,
773 ) {
774 let settings = EditorSettings::get_global(cx);
775 if !settings.show_completion_documentation {
776 return;
777 }
778
779 let completion_index = self.matches[self.selected_item].candidate_id;
780 let Some(project) = project else {
781 return;
782 };
783
784 let resolve_task = project.update(cx, |project, cx| {
785 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
786 });
787 cx.spawn(move |this, mut cx| async move {
788 if let Some(true) = resolve_task.await.log_err() {
789 this.update(&mut cx, |_, cx| cx.notify()).ok();
790 }
791 })
792 .detach();
793 }
794
795 fn visible(&self) -> bool {
796 !self.matches.is_empty()
797 }
798
799 fn render(
800 &self,
801 style: &EditorStyle,
802 max_height: Pixels,
803 workspace: Option<WeakView<Workspace>>,
804 cx: &mut ViewContext<Editor>,
805 ) -> AnyElement {
806 let settings = EditorSettings::get_global(cx);
807 let show_completion_documentation = settings.show_completion_documentation;
808
809 let widest_completion_ix = self
810 .matches
811 .iter()
812 .enumerate()
813 .max_by_key(|(_, mat)| {
814 let completions = self.completions.read();
815 let completion = &completions[mat.candidate_id];
816 let documentation = &completion.documentation;
817
818 let mut len = completion.label.text.chars().count();
819 if let Some(Documentation::SingleLine(text)) = documentation {
820 if show_completion_documentation {
821 len += text.chars().count();
822 }
823 }
824
825 len
826 })
827 .map(|(ix, _)| ix);
828
829 let completions = self.completions.clone();
830 let matches = self.matches.clone();
831 let selected_item = self.selected_item;
832 let style = style.clone();
833
834 let multiline_docs = {
835 let mat = &self.matches[selected_item];
836 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
837 Some(Documentation::MultiLinePlainText(text)) => {
838 Some(div().child(SharedString::from(text.clone())))
839 }
840 Some(Documentation::MultiLineMarkdown(parsed)) => Some(div().child(
841 render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
842 )),
843 _ => None,
844 };
845 multiline_docs.map(|div| {
846 div.id("multiline_docs")
847 .max_h(max_height)
848 .flex_1()
849 .px_1p5()
850 .py_1()
851 .min_w(px(160.))
852 .max_w(px(640.))
853 .w(px(500.))
854 .overflow_y_scroll()
855 // Prevent a mouse down on documentation from being propagated to the editor,
856 // because that would move the cursor.
857 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
858 })
859 };
860
861 let list = uniform_list(
862 cx.view().clone(),
863 "completions",
864 matches.len(),
865 move |_editor, range, cx| {
866 let start_ix = range.start;
867 let completions_guard = completions.read();
868
869 matches[range]
870 .iter()
871 .enumerate()
872 .map(|(ix, mat)| {
873 let item_ix = start_ix + ix;
874 let candidate_id = mat.candidate_id;
875 let completion = &completions_guard[candidate_id];
876
877 let documentation = if show_completion_documentation {
878 &completion.documentation
879 } else {
880 &None
881 };
882
883 let highlights = gpui::combine_highlights(
884 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
885 styled_runs_for_code_label(&completion.label, &style.syntax).map(
886 |(range, mut highlight)| {
887 // Ignore font weight for syntax highlighting, as we'll use it
888 // for fuzzy matches.
889 highlight.font_weight = None;
890 (range, highlight)
891 },
892 ),
893 );
894 let completion_label = StyledText::new(completion.label.text.clone())
895 .with_highlights(&style.text, highlights);
896 let documentation_label =
897 if let Some(Documentation::SingleLine(text)) = documentation {
898 if text.trim().is_empty() {
899 None
900 } else {
901 Some(
902 h_flex().ml_4().child(
903 Label::new(text.clone())
904 .size(LabelSize::Small)
905 .color(Color::Muted),
906 ),
907 )
908 }
909 } else {
910 None
911 };
912
913 h_flex().flex_grow().w_full().min_w(px(120.)).child(
914 ListItem::new(mat.candidate_id)
915 .inset(true)
916 .selected(item_ix == selected_item)
917 .on_click(cx.listener(move |editor, _event, cx| {
918 cx.stop_propagation();
919 editor
920 .confirm_completion(
921 &ConfirmCompletion {
922 item_ix: Some(item_ix),
923 },
924 cx,
925 )
926 .map(|task| task.detach_and_log_err(cx));
927 }))
928 .child(h_flex().flex_grow().child(completion_label))
929 .end_slot::<Div>(documentation_label),
930 )
931 })
932 .collect()
933 },
934 )
935 .max_h(max_height)
936 .track_scroll(self.scroll_handle.clone())
937 .with_width_from_item(widest_completion_ix);
938
939 Popover::new()
940 .child(list)
941 .when_some(multiline_docs, |popover, multiline_docs| {
942 popover.aside(multiline_docs)
943 })
944 .into_any_element()
945 }
946
947 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
948 let mut matches = if let Some(query) = query {
949 fuzzy::match_strings(
950 &self.match_candidates,
951 query,
952 query.chars().any(|c| c.is_uppercase()),
953 100,
954 &Default::default(),
955 executor,
956 )
957 .await
958 } else {
959 self.match_candidates
960 .iter()
961 .enumerate()
962 .map(|(candidate_id, candidate)| StringMatch {
963 candidate_id,
964 score: Default::default(),
965 positions: Default::default(),
966 string: candidate.string.clone(),
967 })
968 .collect()
969 };
970
971 // Remove all candidates where the query's start does not match the start of any word in the candidate
972 if let Some(query) = query {
973 if let Some(query_start) = query.chars().next() {
974 matches.retain(|string_match| {
975 split_words(&string_match.string).any(|word| {
976 // Check that the first codepoint of the word as lowercase matches the first
977 // codepoint of the query as lowercase
978 word.chars()
979 .flat_map(|codepoint| codepoint.to_lowercase())
980 .zip(query_start.to_lowercase())
981 .all(|(word_cp, query_cp)| word_cp == query_cp)
982 })
983 });
984 }
985 }
986
987 let completions = self.completions.read();
988 matches.sort_unstable_by_key(|mat| {
989 let completion = &completions[mat.candidate_id];
990 (
991 completion.lsp_completion.sort_text.as_ref(),
992 Reverse(OrderedFloat(mat.score)),
993 completion.sort_key(),
994 )
995 });
996
997 for mat in &mut matches {
998 let completion = &completions[mat.candidate_id];
999 mat.string = completion.label.text.clone();
1000 for position in &mut mat.positions {
1001 *position += completion.label.filter_range.start;
1002 }
1003 }
1004 drop(completions);
1005
1006 self.matches = matches.into();
1007 self.selected_item = 0;
1008 }
1009}
1010
1011#[derive(Clone)]
1012struct CodeActionsMenu {
1013 actions: Arc<[CodeAction]>,
1014 buffer: Model<Buffer>,
1015 selected_item: usize,
1016 scroll_handle: UniformListScrollHandle,
1017 deployed_from_indicator: bool,
1018}
1019
1020impl CodeActionsMenu {
1021 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1022 self.selected_item = 0;
1023 self.scroll_handle.scroll_to_item(self.selected_item);
1024 cx.notify()
1025 }
1026
1027 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1028 if self.selected_item > 0 {
1029 self.selected_item -= 1;
1030 } else {
1031 self.selected_item = self.actions.len() - 1;
1032 }
1033 self.scroll_handle.scroll_to_item(self.selected_item);
1034 cx.notify();
1035 }
1036
1037 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1038 if self.selected_item + 1 < self.actions.len() {
1039 self.selected_item += 1;
1040 } else {
1041 self.selected_item = 0;
1042 }
1043 self.scroll_handle.scroll_to_item(self.selected_item);
1044 cx.notify();
1045 }
1046
1047 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1048 self.selected_item = self.actions.len() - 1;
1049 self.scroll_handle.scroll_to_item(self.selected_item);
1050 cx.notify()
1051 }
1052
1053 fn visible(&self) -> bool {
1054 !self.actions.is_empty()
1055 }
1056
1057 fn render(
1058 &self,
1059 mut cursor_position: DisplayPoint,
1060 _style: &EditorStyle,
1061 max_height: Pixels,
1062 cx: &mut ViewContext<Editor>,
1063 ) -> (DisplayPoint, AnyElement) {
1064 let actions = self.actions.clone();
1065 let selected_item = self.selected_item;
1066
1067 let element = uniform_list(
1068 cx.view().clone(),
1069 "code_actions_menu",
1070 self.actions.len(),
1071 move |_this, range, cx| {
1072 actions[range.clone()]
1073 .iter()
1074 .enumerate()
1075 .map(|(ix, action)| {
1076 let item_ix = range.start + ix;
1077 let selected = selected_item == item_ix;
1078 let colors = cx.theme().colors();
1079 h_flex()
1080 .flex_grow()
1081 .w_full()
1082 .px_2()
1083 .min_w(px(120.))
1084 .text_color(colors.text)
1085 .when(selected, |style| {
1086 style
1087 .bg(colors.element_active)
1088 .text_color(colors.text_accent)
1089 })
1090 .hover(|style| {
1091 style
1092 .bg(colors.element_hover)
1093 .text_color(colors.text_accent)
1094 })
1095 .on_mouse_down(
1096 MouseButton::Left,
1097 cx.listener(move |editor, _, cx| {
1098 cx.stop_propagation();
1099 editor
1100 .confirm_code_action(
1101 &ConfirmCodeAction {
1102 item_ix: Some(item_ix),
1103 },
1104 cx,
1105 )
1106 .map(|task| task.detach_and_log_err(cx));
1107 }),
1108 )
1109 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1110 .child(SharedString::from(action.lsp_action.title.clone()))
1111 })
1112 .collect()
1113 },
1114 )
1115 .elevation_1(cx)
1116 .px_2()
1117 .py_1()
1118 .max_h(max_height)
1119 .track_scroll(self.scroll_handle.clone())
1120 .with_width_from_item(
1121 self.actions
1122 .iter()
1123 .enumerate()
1124 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1125 .map(|(ix, _)| ix),
1126 )
1127 .into_any_element();
1128
1129 if self.deployed_from_indicator {
1130 *cursor_position.column_mut() = 0;
1131 }
1132
1133 (cursor_position, element)
1134 }
1135}
1136
1137pub(crate) struct CopilotState {
1138 excerpt_id: Option<ExcerptId>,
1139 pending_refresh: Task<Option<()>>,
1140 pending_cycling_refresh: Task<Option<()>>,
1141 cycled: bool,
1142 completions: Vec<copilot::Completion>,
1143 active_completion_index: usize,
1144 suggestion: Option<Inlay>,
1145}
1146
1147impl Default for CopilotState {
1148 fn default() -> Self {
1149 Self {
1150 excerpt_id: None,
1151 pending_cycling_refresh: Task::ready(Some(())),
1152 pending_refresh: Task::ready(Some(())),
1153 completions: Default::default(),
1154 active_completion_index: 0,
1155 cycled: false,
1156 suggestion: None,
1157 }
1158 }
1159}
1160
1161impl CopilotState {
1162 fn active_completion(&self) -> Option<&copilot::Completion> {
1163 self.completions.get(self.active_completion_index)
1164 }
1165
1166 fn text_for_active_completion(
1167 &self,
1168 cursor: Anchor,
1169 buffer: &MultiBufferSnapshot,
1170 ) -> Option<&str> {
1171 use language::ToOffset as _;
1172
1173 let completion = self.active_completion()?;
1174 let excerpt_id = self.excerpt_id?;
1175 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1176 if excerpt_id != cursor.excerpt_id
1177 || !completion.range.start.is_valid(completion_buffer)
1178 || !completion.range.end.is_valid(completion_buffer)
1179 {
1180 return None;
1181 }
1182
1183 let mut completion_range = completion.range.to_offset(&completion_buffer);
1184 let prefix_len = Self::common_prefix(
1185 completion_buffer.chars_for_range(completion_range.clone()),
1186 completion.text.chars(),
1187 );
1188 completion_range.start += prefix_len;
1189 let suffix_len = Self::common_prefix(
1190 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1191 completion.text[prefix_len..].chars().rev(),
1192 );
1193 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1194
1195 if completion_range.is_empty()
1196 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1197 {
1198 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1199 } else {
1200 None
1201 }
1202 }
1203
1204 fn cycle_completions(&mut self, direction: Direction) {
1205 match direction {
1206 Direction::Prev => {
1207 self.active_completion_index = if self.active_completion_index == 0 {
1208 self.completions.len().saturating_sub(1)
1209 } else {
1210 self.active_completion_index - 1
1211 };
1212 }
1213 Direction::Next => {
1214 if self.completions.len() == 0 {
1215 self.active_completion_index = 0
1216 } else {
1217 self.active_completion_index =
1218 (self.active_completion_index + 1) % self.completions.len();
1219 }
1220 }
1221 }
1222 }
1223
1224 fn push_completion(&mut self, new_completion: copilot::Completion) {
1225 for completion in &self.completions {
1226 if completion.text == new_completion.text && completion.range == new_completion.range {
1227 return;
1228 }
1229 }
1230 self.completions.push(new_completion);
1231 }
1232
1233 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1234 a.zip(b)
1235 .take_while(|(a, b)| a == b)
1236 .map(|(a, _)| a.len_utf8())
1237 .sum()
1238 }
1239}
1240
1241#[derive(Debug)]
1242struct ActiveDiagnosticGroup {
1243 primary_range: Range<Anchor>,
1244 primary_message: String,
1245 blocks: HashMap<BlockId, Diagnostic>,
1246 is_valid: bool,
1247}
1248
1249#[derive(Serialize, Deserialize)]
1250pub struct ClipboardSelection {
1251 pub len: usize,
1252 pub is_entire_line: bool,
1253 pub first_line_indent: u32,
1254}
1255
1256#[derive(Debug)]
1257pub(crate) struct NavigationData {
1258 cursor_anchor: Anchor,
1259 cursor_position: Point,
1260 scroll_anchor: ScrollAnchor,
1261 scroll_top_row: u32,
1262}
1263
1264enum GotoDefinitionKind {
1265 Symbol,
1266 Type,
1267}
1268
1269#[derive(Debug, Clone)]
1270enum InlayHintRefreshReason {
1271 Toggle(bool),
1272 SettingsChange(InlayHintSettings),
1273 NewLinesShown,
1274 BufferEdited(HashSet<Arc<Language>>),
1275 RefreshRequested,
1276 ExcerptsRemoved(Vec<ExcerptId>),
1277}
1278impl InlayHintRefreshReason {
1279 fn description(&self) -> &'static str {
1280 match self {
1281 Self::Toggle(_) => "toggle",
1282 Self::SettingsChange(_) => "settings change",
1283 Self::NewLinesShown => "new lines shown",
1284 Self::BufferEdited(_) => "buffer edited",
1285 Self::RefreshRequested => "refresh requested",
1286 Self::ExcerptsRemoved(_) => "excerpts removed",
1287 }
1288 }
1289}
1290
1291impl Editor {
1292 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1293 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1294 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1295 Self::new(EditorMode::SingleLine, buffer, None, cx)
1296 }
1297
1298 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1299 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1300 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1301 Self::new(EditorMode::Full, buffer, None, cx)
1302 }
1303
1304 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1305 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1306 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1307 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1308 }
1309
1310 pub fn for_buffer(
1311 buffer: Model<Buffer>,
1312 project: Option<Model<Project>>,
1313 cx: &mut ViewContext<Self>,
1314 ) -> Self {
1315 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1316 Self::new(EditorMode::Full, buffer, project, cx)
1317 }
1318
1319 pub fn for_multibuffer(
1320 buffer: Model<MultiBuffer>,
1321 project: Option<Model<Project>>,
1322 cx: &mut ViewContext<Self>,
1323 ) -> Self {
1324 Self::new(EditorMode::Full, buffer, project, cx)
1325 }
1326
1327 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1328 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1329 self.display_map.update(cx, |display_map, cx| {
1330 let snapshot = display_map.snapshot(cx);
1331 clone.display_map.update(cx, |display_map, cx| {
1332 display_map.set_state(&snapshot, cx);
1333 });
1334 });
1335 clone.selections.clone_state(&self.selections);
1336 clone.scroll_manager.clone_state(&self.scroll_manager);
1337 clone.searchable = self.searchable;
1338 clone
1339 }
1340
1341 fn new(
1342 mode: EditorMode,
1343 buffer: Model<MultiBuffer>,
1344 project: Option<Model<Project>>,
1345 cx: &mut ViewContext<Self>,
1346 ) -> Self {
1347 let style = cx.text_style();
1348 let font_size = style.font_size.to_pixels(cx.rem_size());
1349 let display_map = cx.new_model(|cx| {
1350 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1351 });
1352
1353 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1354
1355 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1356
1357 let soft_wrap_mode_override =
1358 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1359
1360 let mut project_subscriptions = Vec::new();
1361 if mode == EditorMode::Full {
1362 if let Some(project) = project.as_ref() {
1363 if buffer.read(cx).is_singleton() {
1364 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1365 cx.emit(EditorEvent::TitleChanged);
1366 }));
1367 }
1368 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1369 if let project::Event::RefreshInlayHints = event {
1370 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1371 };
1372 }));
1373 }
1374 }
1375
1376 let inlay_hint_settings = inlay_hint_settings(
1377 selections.newest_anchor().head(),
1378 &buffer.read(cx).snapshot(cx),
1379 cx,
1380 );
1381
1382 let focus_handle = cx.focus_handle();
1383 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1384 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1385
1386 let mut this = Self {
1387 handle: cx.view().downgrade(),
1388 focus_handle,
1389 buffer: buffer.clone(),
1390 display_map: display_map.clone(),
1391 selections,
1392 scroll_manager: ScrollManager::new(),
1393 columnar_selection_tail: None,
1394 add_selections_state: None,
1395 select_next_state: None,
1396 select_prev_state: None,
1397 selection_history: Default::default(),
1398 autoclose_regions: Default::default(),
1399 snippet_stack: Default::default(),
1400 select_larger_syntax_node_stack: Vec::new(),
1401 ime_transaction: Default::default(),
1402 active_diagnostics: None,
1403 soft_wrap_mode_override,
1404 completion_provider: project.clone().map(|project| Box::new(project) as _),
1405 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1406 project,
1407 blink_manager: blink_manager.clone(),
1408 show_local_selections: true,
1409 mode,
1410 show_gutter: mode == EditorMode::Full,
1411 show_wrap_guides: None,
1412 placeholder_text: None,
1413 highlighted_rows: None,
1414 background_highlights: Default::default(),
1415 inlay_background_highlights: Default::default(),
1416 nav_history: None,
1417 context_menu: RwLock::new(None),
1418 mouse_context_menu: None,
1419 completion_tasks: Default::default(),
1420 next_completion_id: 0,
1421 next_inlay_id: 0,
1422 available_code_actions: Default::default(),
1423 code_actions_task: Default::default(),
1424 document_highlights_task: Default::default(),
1425 pending_rename: Default::default(),
1426 searchable: true,
1427 cursor_shape: Default::default(),
1428 autoindent_mode: Some(AutoindentMode::EachLine),
1429 collapse_matches: false,
1430 workspace: None,
1431 keymap_context_layers: Default::default(),
1432 input_enabled: true,
1433 read_only: false,
1434 use_autoclose: true,
1435 leader_peer_id: None,
1436 remote_id: None,
1437 hover_state: Default::default(),
1438 link_go_to_definition_state: Default::default(),
1439 copilot_state: Default::default(),
1440 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1441 gutter_hovered: false,
1442 pixel_position_of_newest_cursor: None,
1443 gutter_width: Default::default(),
1444 style: None,
1445 show_cursor_names: false,
1446 hovered_cursor: Default::default(),
1447 editor_actions: Default::default(),
1448 show_copilot_suggestions: mode == EditorMode::Full,
1449 _subscriptions: vec![
1450 cx.observe(&buffer, Self::on_buffer_changed),
1451 cx.subscribe(&buffer, Self::on_buffer_event),
1452 cx.observe(&display_map, Self::on_display_map_changed),
1453 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1454 cx.observe_global::<SettingsStore>(Self::settings_changed),
1455 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1456 cx.observe_window_activation(|editor, cx| {
1457 let active = cx.is_window_active();
1458 editor.blink_manager.update(cx, |blink_manager, cx| {
1459 if active {
1460 blink_manager.enable(cx);
1461 } else {
1462 blink_manager.show_cursor(cx);
1463 blink_manager.disable(cx);
1464 }
1465 });
1466 }),
1467 ],
1468 };
1469
1470 this._subscriptions.extend(project_subscriptions);
1471
1472 this.end_selection(cx);
1473 this.scroll_manager.show_scrollbar(cx);
1474
1475 if mode == EditorMode::Full {
1476 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1477 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1478 }
1479
1480 this.report_editor_event("open", None, cx);
1481 this
1482 }
1483
1484 fn key_context(&self, cx: &AppContext) -> KeyContext {
1485 let mut key_context = KeyContext::default();
1486 key_context.add("Editor");
1487 let mode = match self.mode {
1488 EditorMode::SingleLine => "single_line",
1489 EditorMode::AutoHeight { .. } => "auto_height",
1490 EditorMode::Full => "full",
1491 };
1492 key_context.set("mode", mode);
1493 if self.pending_rename.is_some() {
1494 key_context.add("renaming");
1495 }
1496 if self.context_menu_visible() {
1497 match self.context_menu.read().as_ref() {
1498 Some(ContextMenu::Completions(_)) => {
1499 key_context.add("menu");
1500 key_context.add("showing_completions")
1501 }
1502 Some(ContextMenu::CodeActions(_)) => {
1503 key_context.add("menu");
1504 key_context.add("showing_code_actions")
1505 }
1506 None => {}
1507 }
1508 }
1509
1510 for layer in self.keymap_context_layers.values() {
1511 key_context.extend(layer);
1512 }
1513
1514 if let Some(extension) = self
1515 .buffer
1516 .read(cx)
1517 .as_singleton()
1518 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1519 {
1520 key_context.set("extension", extension.to_string());
1521 }
1522
1523 key_context
1524 }
1525
1526 pub fn new_file(
1527 workspace: &mut Workspace,
1528 _: &workspace::NewFile,
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.add_item(
1539 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1540 cx,
1541 );
1542 }
1543 }
1544
1545 pub fn new_file_in_direction(
1546 workspace: &mut Workspace,
1547 action: &workspace::NewFileInDirection,
1548 cx: &mut ViewContext<Workspace>,
1549 ) {
1550 let project = workspace.project().clone();
1551 if project.read(cx).is_remote() {
1552 cx.propagate();
1553 } else if let Some(buffer) = project
1554 .update(cx, |project, cx| project.create_buffer("", None, cx))
1555 .log_err()
1556 {
1557 workspace.split_item(
1558 action.0,
1559 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1560 cx,
1561 );
1562 }
1563 }
1564
1565 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1566 self.buffer.read(cx).replica_id()
1567 }
1568
1569 pub fn leader_peer_id(&self) -> Option<PeerId> {
1570 self.leader_peer_id
1571 }
1572
1573 pub fn buffer(&self) -> &Model<MultiBuffer> {
1574 &self.buffer
1575 }
1576
1577 pub fn workspace(&self) -> Option<View<Workspace>> {
1578 self.workspace.as_ref()?.0.upgrade()
1579 }
1580
1581 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1582 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1583 }
1584
1585 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1586 self.buffer().read(cx).title(cx)
1587 }
1588
1589 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1590 EditorSnapshot {
1591 mode: self.mode,
1592 show_gutter: self.show_gutter,
1593 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1594 scroll_anchor: self.scroll_manager.anchor(),
1595 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1596 placeholder_text: self.placeholder_text.clone(),
1597 is_focused: self.focus_handle.is_focused(cx),
1598 }
1599 }
1600
1601 pub fn language_at<'a, T: ToOffset>(
1602 &self,
1603 point: T,
1604 cx: &'a AppContext,
1605 ) -> Option<Arc<Language>> {
1606 self.buffer.read(cx).language_at(point, cx)
1607 }
1608
1609 pub fn file_at<'a, T: ToOffset>(
1610 &self,
1611 point: T,
1612 cx: &'a AppContext,
1613 ) -> Option<Arc<dyn language::File>> {
1614 self.buffer.read(cx).read(cx).file_at(point).cloned()
1615 }
1616
1617 pub fn active_excerpt(
1618 &self,
1619 cx: &AppContext,
1620 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1621 self.buffer
1622 .read(cx)
1623 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1624 }
1625
1626 pub fn mode(&self) -> EditorMode {
1627 self.mode
1628 }
1629
1630 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1631 self.collaboration_hub.as_deref()
1632 }
1633
1634 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1635 self.collaboration_hub = Some(hub);
1636 }
1637
1638 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1639 self.completion_provider = Some(hub);
1640 }
1641
1642 pub fn placeholder_text(&self) -> Option<&str> {
1643 self.placeholder_text.as_deref()
1644 }
1645
1646 pub fn set_placeholder_text(
1647 &mut self,
1648 placeholder_text: impl Into<Arc<str>>,
1649 cx: &mut ViewContext<Self>,
1650 ) {
1651 let placeholder_text = Some(placeholder_text.into());
1652 if self.placeholder_text != placeholder_text {
1653 self.placeholder_text = placeholder_text;
1654 cx.notify();
1655 }
1656 }
1657
1658 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1659 self.cursor_shape = cursor_shape;
1660 cx.notify();
1661 }
1662
1663 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1664 self.collapse_matches = collapse_matches;
1665 }
1666
1667 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1668 if self.collapse_matches {
1669 return range.start..range.start;
1670 }
1671 range.clone()
1672 }
1673
1674 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1675 if self.display_map.read(cx).clip_at_line_ends != clip {
1676 self.display_map
1677 .update(cx, |map, _| map.clip_at_line_ends = clip);
1678 }
1679 }
1680
1681 pub fn set_keymap_context_layer<Tag: 'static>(
1682 &mut self,
1683 context: KeyContext,
1684 cx: &mut ViewContext<Self>,
1685 ) {
1686 self.keymap_context_layers
1687 .insert(TypeId::of::<Tag>(), context);
1688 cx.notify();
1689 }
1690
1691 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1692 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1693 cx.notify();
1694 }
1695
1696 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1697 self.input_enabled = input_enabled;
1698 }
1699
1700 pub fn set_autoindent(&mut self, autoindent: bool) {
1701 if autoindent {
1702 self.autoindent_mode = Some(AutoindentMode::EachLine);
1703 } else {
1704 self.autoindent_mode = None;
1705 }
1706 }
1707
1708 pub fn read_only(&self, cx: &AppContext) -> bool {
1709 self.read_only || self.buffer.read(cx).read_only()
1710 }
1711
1712 pub fn set_read_only(&mut self, read_only: bool) {
1713 self.read_only = read_only;
1714 }
1715
1716 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1717 self.use_autoclose = autoclose;
1718 }
1719
1720 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1721 self.show_copilot_suggestions = show_copilot_suggestions;
1722 }
1723
1724 fn selections_did_change(
1725 &mut self,
1726 local: bool,
1727 old_cursor_position: &Anchor,
1728 cx: &mut ViewContext<Self>,
1729 ) {
1730 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1731 self.buffer.update(cx, |buffer, cx| {
1732 buffer.set_active_selections(
1733 &self.selections.disjoint_anchors(),
1734 self.selections.line_mode,
1735 self.cursor_shape,
1736 cx,
1737 )
1738 });
1739 }
1740
1741 let display_map = self
1742 .display_map
1743 .update(cx, |display_map, cx| display_map.snapshot(cx));
1744 let buffer = &display_map.buffer_snapshot;
1745 self.add_selections_state = None;
1746 self.select_next_state = None;
1747 self.select_prev_state = None;
1748 self.select_larger_syntax_node_stack.clear();
1749 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1750 self.snippet_stack
1751 .invalidate(&self.selections.disjoint_anchors(), buffer);
1752 self.take_rename(false, cx);
1753
1754 let new_cursor_position = self.selections.newest_anchor().head();
1755
1756 self.push_to_nav_history(
1757 old_cursor_position.clone(),
1758 Some(new_cursor_position.to_point(buffer)),
1759 cx,
1760 );
1761
1762 if local {
1763 let new_cursor_position = self.selections.newest_anchor().head();
1764 let mut context_menu = self.context_menu.write();
1765 let completion_menu = match context_menu.as_ref() {
1766 Some(ContextMenu::Completions(menu)) => Some(menu),
1767
1768 _ => {
1769 *context_menu = None;
1770 None
1771 }
1772 };
1773
1774 if let Some(completion_menu) = completion_menu {
1775 let cursor_position = new_cursor_position.to_offset(buffer);
1776 let (word_range, kind) =
1777 buffer.surrounding_word(completion_menu.initial_position.clone());
1778 if kind == Some(CharKind::Word)
1779 && word_range.to_inclusive().contains(&cursor_position)
1780 {
1781 let mut completion_menu = completion_menu.clone();
1782 drop(context_menu);
1783
1784 let query = Self::completion_query(buffer, cursor_position);
1785 cx.spawn(move |this, mut cx| async move {
1786 completion_menu
1787 .filter(query.as_deref(), cx.background_executor().clone())
1788 .await;
1789
1790 this.update(&mut cx, |this, cx| {
1791 let mut context_menu = this.context_menu.write();
1792 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1793 return;
1794 };
1795
1796 if menu.id > completion_menu.id {
1797 return;
1798 }
1799
1800 *context_menu = Some(ContextMenu::Completions(completion_menu));
1801 drop(context_menu);
1802 cx.notify();
1803 })
1804 })
1805 .detach();
1806
1807 self.show_completions(&ShowCompletions, cx);
1808 } else {
1809 drop(context_menu);
1810 self.hide_context_menu(cx);
1811 }
1812 } else {
1813 drop(context_menu);
1814 }
1815
1816 hide_hover(self, cx);
1817
1818 if old_cursor_position.to_display_point(&display_map).row()
1819 != new_cursor_position.to_display_point(&display_map).row()
1820 {
1821 self.available_code_actions.take();
1822 }
1823 self.refresh_code_actions(cx);
1824 self.refresh_document_highlights(cx);
1825 refresh_matching_bracket_highlights(self, cx);
1826 self.discard_copilot_suggestion(cx);
1827 }
1828
1829 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1830 cx.emit(EditorEvent::SelectionsChanged { local });
1831
1832 if self.selections.disjoint_anchors().len() == 1 {
1833 cx.emit(SearchEvent::ActiveMatchChanged)
1834 }
1835
1836 cx.notify();
1837 }
1838
1839 pub fn change_selections<R>(
1840 &mut self,
1841 autoscroll: Option<Autoscroll>,
1842 cx: &mut ViewContext<Self>,
1843 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1844 ) -> R {
1845 let old_cursor_position = self.selections.newest_anchor().head();
1846 self.push_to_selection_history();
1847
1848 let (changed, result) = self.selections.change_with(cx, change);
1849
1850 if changed {
1851 if let Some(autoscroll) = autoscroll {
1852 self.request_autoscroll(autoscroll, cx);
1853 }
1854 self.selections_did_change(true, &old_cursor_position, cx);
1855 }
1856
1857 result
1858 }
1859
1860 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1861 where
1862 I: IntoIterator<Item = (Range<S>, T)>,
1863 S: ToOffset,
1864 T: Into<Arc<str>>,
1865 {
1866 if self.read_only(cx) {
1867 return;
1868 }
1869
1870 self.buffer
1871 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1872 }
1873
1874 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, 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(edits, self.autoindent_mode.clone(), cx)
1886 });
1887 }
1888
1889 pub fn edit_with_block_indent<I, S, T>(
1890 &mut self,
1891 edits: I,
1892 original_indent_columns: Vec<u32>,
1893 cx: &mut ViewContext<Self>,
1894 ) where
1895 I: IntoIterator<Item = (Range<S>, T)>,
1896 S: ToOffset,
1897 T: Into<Arc<str>>,
1898 {
1899 if self.read_only(cx) {
1900 return;
1901 }
1902
1903 self.buffer.update(cx, |buffer, cx| {
1904 buffer.edit(
1905 edits,
1906 Some(AutoindentMode::Block {
1907 original_indent_columns,
1908 }),
1909 cx,
1910 )
1911 });
1912 }
1913
1914 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1915 self.hide_context_menu(cx);
1916
1917 match phase {
1918 SelectPhase::Begin {
1919 position,
1920 add,
1921 click_count,
1922 } => self.begin_selection(position, add, click_count, cx),
1923 SelectPhase::BeginColumnar {
1924 position,
1925 goal_column,
1926 } => self.begin_columnar_selection(position, goal_column, cx),
1927 SelectPhase::Extend {
1928 position,
1929 click_count,
1930 } => self.extend_selection(position, click_count, cx),
1931 SelectPhase::Update {
1932 position,
1933 goal_column,
1934 scroll_delta,
1935 } => self.update_selection(position, goal_column, scroll_delta, cx),
1936 SelectPhase::End => self.end_selection(cx),
1937 }
1938 }
1939
1940 fn extend_selection(
1941 &mut self,
1942 position: DisplayPoint,
1943 click_count: usize,
1944 cx: &mut ViewContext<Self>,
1945 ) {
1946 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1947 let tail = self.selections.newest::<usize>(cx).tail();
1948 self.begin_selection(position, false, click_count, cx);
1949
1950 let position = position.to_offset(&display_map, Bias::Left);
1951 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1952
1953 let mut pending_selection = self
1954 .selections
1955 .pending_anchor()
1956 .expect("extend_selection not called with pending selection");
1957 if position >= tail {
1958 pending_selection.start = tail_anchor;
1959 } else {
1960 pending_selection.end = tail_anchor;
1961 pending_selection.reversed = true;
1962 }
1963
1964 let mut pending_mode = self.selections.pending_mode().unwrap();
1965 match &mut pending_mode {
1966 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
1967 _ => {}
1968 }
1969
1970 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
1971 s.set_pending(pending_selection, pending_mode)
1972 });
1973 }
1974
1975 fn begin_selection(
1976 &mut self,
1977 position: DisplayPoint,
1978 add: bool,
1979 click_count: usize,
1980 cx: &mut ViewContext<Self>,
1981 ) {
1982 if !self.focus_handle.is_focused(cx) {
1983 cx.focus(&self.focus_handle);
1984 }
1985
1986 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1987 let buffer = &display_map.buffer_snapshot;
1988 let newest_selection = self.selections.newest_anchor().clone();
1989 let position = display_map.clip_point(position, Bias::Left);
1990
1991 let start;
1992 let end;
1993 let mode;
1994 let auto_scroll;
1995 match click_count {
1996 1 => {
1997 start = buffer.anchor_before(position.to_point(&display_map));
1998 end = start.clone();
1999 mode = SelectMode::Character;
2000 auto_scroll = true;
2001 }
2002 2 => {
2003 let range = movement::surrounding_word(&display_map, position);
2004 start = buffer.anchor_before(range.start.to_point(&display_map));
2005 end = buffer.anchor_before(range.end.to_point(&display_map));
2006 mode = SelectMode::Word(start.clone()..end.clone());
2007 auto_scroll = true;
2008 }
2009 3 => {
2010 let position = display_map
2011 .clip_point(position, Bias::Left)
2012 .to_point(&display_map);
2013 let line_start = display_map.prev_line_boundary(position).0;
2014 let next_line_start = buffer.clip_point(
2015 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2016 Bias::Left,
2017 );
2018 start = buffer.anchor_before(line_start);
2019 end = buffer.anchor_before(next_line_start);
2020 mode = SelectMode::Line(start.clone()..end.clone());
2021 auto_scroll = true;
2022 }
2023 _ => {
2024 start = buffer.anchor_before(0);
2025 end = buffer.anchor_before(buffer.len());
2026 mode = SelectMode::All;
2027 auto_scroll = false;
2028 }
2029 }
2030
2031 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2032 if !add {
2033 s.clear_disjoint();
2034 } else if click_count > 1 {
2035 s.delete(newest_selection.id)
2036 }
2037
2038 s.set_pending_anchor_range(start..end, mode);
2039 });
2040 }
2041
2042 fn begin_columnar_selection(
2043 &mut self,
2044 position: DisplayPoint,
2045 goal_column: u32,
2046 cx: &mut ViewContext<Self>,
2047 ) {
2048 if !self.focus_handle.is_focused(cx) {
2049 cx.focus(&self.focus_handle);
2050 }
2051
2052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2053 let tail = self.selections.newest::<Point>(cx).tail();
2054 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2055
2056 self.select_columns(
2057 tail.to_display_point(&display_map),
2058 position,
2059 goal_column,
2060 &display_map,
2061 cx,
2062 );
2063 }
2064
2065 fn update_selection(
2066 &mut self,
2067 position: DisplayPoint,
2068 goal_column: u32,
2069 scroll_delta: gpui::Point<f32>,
2070 cx: &mut ViewContext<Self>,
2071 ) {
2072 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2073
2074 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2075 let tail = tail.to_display_point(&display_map);
2076 self.select_columns(tail, position, goal_column, &display_map, cx);
2077 } else if let Some(mut pending) = self.selections.pending_anchor() {
2078 let buffer = self.buffer.read(cx).snapshot(cx);
2079 let head;
2080 let tail;
2081 let mode = self.selections.pending_mode().unwrap();
2082 match &mode {
2083 SelectMode::Character => {
2084 head = position.to_point(&display_map);
2085 tail = pending.tail().to_point(&buffer);
2086 }
2087 SelectMode::Word(original_range) => {
2088 let original_display_range = original_range.start.to_display_point(&display_map)
2089 ..original_range.end.to_display_point(&display_map);
2090 let original_buffer_range = original_display_range.start.to_point(&display_map)
2091 ..original_display_range.end.to_point(&display_map);
2092 if movement::is_inside_word(&display_map, position)
2093 || original_display_range.contains(&position)
2094 {
2095 let word_range = movement::surrounding_word(&display_map, position);
2096 if word_range.start < original_display_range.start {
2097 head = word_range.start.to_point(&display_map);
2098 } else {
2099 head = word_range.end.to_point(&display_map);
2100 }
2101 } else {
2102 head = position.to_point(&display_map);
2103 }
2104
2105 if head <= original_buffer_range.start {
2106 tail = original_buffer_range.end;
2107 } else {
2108 tail = original_buffer_range.start;
2109 }
2110 }
2111 SelectMode::Line(original_range) => {
2112 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2113
2114 let position = display_map
2115 .clip_point(position, Bias::Left)
2116 .to_point(&display_map);
2117 let line_start = display_map.prev_line_boundary(position).0;
2118 let next_line_start = buffer.clip_point(
2119 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2120 Bias::Left,
2121 );
2122
2123 if line_start < original_range.start {
2124 head = line_start
2125 } else {
2126 head = next_line_start
2127 }
2128
2129 if head <= original_range.start {
2130 tail = original_range.end;
2131 } else {
2132 tail = original_range.start;
2133 }
2134 }
2135 SelectMode::All => {
2136 return;
2137 }
2138 };
2139
2140 if head < tail {
2141 pending.start = buffer.anchor_before(head);
2142 pending.end = buffer.anchor_before(tail);
2143 pending.reversed = true;
2144 } else {
2145 pending.start = buffer.anchor_before(tail);
2146 pending.end = buffer.anchor_before(head);
2147 pending.reversed = false;
2148 }
2149
2150 self.change_selections(None, cx, |s| {
2151 s.set_pending(pending, mode);
2152 });
2153 } else {
2154 log::error!("update_selection dispatched with no pending selection");
2155 return;
2156 }
2157
2158 self.apply_scroll_delta(scroll_delta, cx);
2159 cx.notify();
2160 }
2161
2162 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2163 self.columnar_selection_tail.take();
2164 if self.selections.pending_anchor().is_some() {
2165 let selections = self.selections.all::<usize>(cx);
2166 self.change_selections(None, cx, |s| {
2167 s.select(selections);
2168 s.clear_pending();
2169 });
2170 }
2171 }
2172
2173 fn select_columns(
2174 &mut self,
2175 tail: DisplayPoint,
2176 head: DisplayPoint,
2177 goal_column: u32,
2178 display_map: &DisplaySnapshot,
2179 cx: &mut ViewContext<Self>,
2180 ) {
2181 let start_row = cmp::min(tail.row(), head.row());
2182 let end_row = cmp::max(tail.row(), head.row());
2183 let start_column = cmp::min(tail.column(), goal_column);
2184 let end_column = cmp::max(tail.column(), goal_column);
2185 let reversed = start_column < tail.column();
2186
2187 let selection_ranges = (start_row..=end_row)
2188 .filter_map(|row| {
2189 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2190 let start = display_map
2191 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2192 .to_point(display_map);
2193 let end = display_map
2194 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2195 .to_point(display_map);
2196 if reversed {
2197 Some(end..start)
2198 } else {
2199 Some(start..end)
2200 }
2201 } else {
2202 None
2203 }
2204 })
2205 .collect::<Vec<_>>();
2206
2207 self.change_selections(None, cx, |s| {
2208 s.select_ranges(selection_ranges);
2209 });
2210 cx.notify();
2211 }
2212
2213 pub fn has_pending_nonempty_selection(&self) -> bool {
2214 let pending_nonempty_selection = match self.selections.pending_anchor() {
2215 Some(Selection { start, end, .. }) => start != end,
2216 None => false,
2217 };
2218 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2219 }
2220
2221 pub fn has_pending_selection(&self) -> bool {
2222 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2223 }
2224
2225 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2226 if self.take_rename(false, cx).is_some() {
2227 return;
2228 }
2229
2230 if hide_hover(self, cx) {
2231 return;
2232 }
2233
2234 if self.hide_context_menu(cx).is_some() {
2235 return;
2236 }
2237
2238 if self.discard_copilot_suggestion(cx) {
2239 return;
2240 }
2241
2242 if self.snippet_stack.pop().is_some() {
2243 return;
2244 }
2245
2246 if self.mode == EditorMode::Full {
2247 if self.active_diagnostics.is_some() {
2248 self.dismiss_diagnostics(cx);
2249 return;
2250 }
2251
2252 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2253 return;
2254 }
2255 }
2256
2257 cx.propagate();
2258 }
2259
2260 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2261 let text: Arc<str> = text.into();
2262
2263 if self.read_only(cx) {
2264 return;
2265 }
2266
2267 let selections = self.selections.all_adjusted(cx);
2268 let mut brace_inserted = false;
2269 let mut edits = Vec::new();
2270 let mut new_selections = Vec::with_capacity(selections.len());
2271 let mut new_autoclose_regions = Vec::new();
2272 let snapshot = self.buffer.read(cx).read(cx);
2273
2274 for (selection, autoclose_region) in
2275 self.selections_with_autoclose_regions(selections, &snapshot)
2276 {
2277 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2278 // Determine if the inserted text matches the opening or closing
2279 // bracket of any of this language's bracket pairs.
2280 let mut bracket_pair = None;
2281 let mut is_bracket_pair_start = false;
2282 if !text.is_empty() {
2283 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2284 // and they are removing the character that triggered IME popup.
2285 for (pair, enabled) in scope.brackets() {
2286 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2287 bracket_pair = Some(pair.clone());
2288 is_bracket_pair_start = true;
2289 break;
2290 } else if pair.end.as_str() == text.as_ref() {
2291 bracket_pair = Some(pair.clone());
2292 break;
2293 }
2294 }
2295 }
2296
2297 if let Some(bracket_pair) = bracket_pair {
2298 if selection.is_empty() {
2299 if is_bracket_pair_start {
2300 let prefix_len = bracket_pair.start.len() - text.len();
2301
2302 // If the inserted text is a suffix of an opening bracket and the
2303 // selection is preceded by the rest of the opening bracket, then
2304 // insert the closing bracket.
2305 let following_text_allows_autoclose = snapshot
2306 .chars_at(selection.start)
2307 .next()
2308 .map_or(true, |c| scope.should_autoclose_before(c));
2309 let preceding_text_matches_prefix = prefix_len == 0
2310 || (selection.start.column >= (prefix_len as u32)
2311 && snapshot.contains_str_at(
2312 Point::new(
2313 selection.start.row,
2314 selection.start.column - (prefix_len as u32),
2315 ),
2316 &bracket_pair.start[..prefix_len],
2317 ));
2318 let autoclose = self.use_autoclose
2319 && snapshot.settings_at(selection.start, cx).use_autoclose;
2320 if autoclose
2321 && following_text_allows_autoclose
2322 && preceding_text_matches_prefix
2323 {
2324 let anchor = snapshot.anchor_before(selection.end);
2325 new_selections.push((selection.map(|_| anchor), text.len()));
2326 new_autoclose_regions.push((
2327 anchor,
2328 text.len(),
2329 selection.id,
2330 bracket_pair.clone(),
2331 ));
2332 edits.push((
2333 selection.range(),
2334 format!("{}{}", text, bracket_pair.end).into(),
2335 ));
2336 brace_inserted = true;
2337 continue;
2338 }
2339 }
2340
2341 if let Some(region) = autoclose_region {
2342 // If the selection is followed by an auto-inserted closing bracket,
2343 // then don't insert that closing bracket again; just move the selection
2344 // past the closing bracket.
2345 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2346 && text.as_ref() == region.pair.end.as_str();
2347 if should_skip {
2348 let anchor = snapshot.anchor_after(selection.end);
2349 new_selections
2350 .push((selection.map(|_| anchor), region.pair.end.len()));
2351 continue;
2352 }
2353 }
2354 }
2355 // If an opening bracket is 1 character long and is typed while
2356 // text is selected, then surround that text with the bracket pair.
2357 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2358 edits.push((selection.start..selection.start, text.clone()));
2359 edits.push((
2360 selection.end..selection.end,
2361 bracket_pair.end.as_str().into(),
2362 ));
2363 brace_inserted = true;
2364 new_selections.push((
2365 Selection {
2366 id: selection.id,
2367 start: snapshot.anchor_after(selection.start),
2368 end: snapshot.anchor_before(selection.end),
2369 reversed: selection.reversed,
2370 goal: selection.goal,
2371 },
2372 0,
2373 ));
2374 continue;
2375 }
2376 }
2377 }
2378
2379 // If not handling any auto-close operation, then just replace the selected
2380 // text with the given input and move the selection to the end of the
2381 // newly inserted text.
2382 let anchor = snapshot.anchor_after(selection.end);
2383 new_selections.push((selection.map(|_| anchor), 0));
2384 edits.push((selection.start..selection.end, text.clone()));
2385 }
2386
2387 drop(snapshot);
2388 self.transact(cx, |this, cx| {
2389 this.buffer.update(cx, |buffer, cx| {
2390 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2391 });
2392
2393 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2394 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2395 let snapshot = this.buffer.read(cx).read(cx);
2396 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2397 .zip(new_selection_deltas)
2398 .map(|(selection, delta)| Selection {
2399 id: selection.id,
2400 start: selection.start + delta,
2401 end: selection.end + delta,
2402 reversed: selection.reversed,
2403 goal: SelectionGoal::None,
2404 })
2405 .collect::<Vec<_>>();
2406
2407 let mut i = 0;
2408 for (position, delta, selection_id, pair) in new_autoclose_regions {
2409 let position = position.to_offset(&snapshot) + delta;
2410 let start = snapshot.anchor_before(position);
2411 let end = snapshot.anchor_after(position);
2412 while let Some(existing_state) = this.autoclose_regions.get(i) {
2413 match existing_state.range.start.cmp(&start, &snapshot) {
2414 Ordering::Less => i += 1,
2415 Ordering::Greater => break,
2416 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2417 Ordering::Less => i += 1,
2418 Ordering::Equal => break,
2419 Ordering::Greater => break,
2420 },
2421 }
2422 }
2423 this.autoclose_regions.insert(
2424 i,
2425 AutocloseRegion {
2426 selection_id,
2427 range: start..end,
2428 pair,
2429 },
2430 );
2431 }
2432
2433 drop(snapshot);
2434 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2435 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2436
2437 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2438 if let Some(on_type_format_task) =
2439 this.trigger_on_type_formatting(text.to_string(), cx)
2440 {
2441 on_type_format_task.detach_and_log_err(cx);
2442 }
2443 }
2444
2445 if had_active_copilot_suggestion {
2446 this.refresh_copilot_suggestions(true, cx);
2447 if !this.has_active_copilot_suggestion(cx) {
2448 this.trigger_completion_on_input(&text, cx);
2449 }
2450 } else {
2451 this.trigger_completion_on_input(&text, cx);
2452 this.refresh_copilot_suggestions(true, cx);
2453 }
2454 });
2455 }
2456
2457 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2458 self.transact(cx, |this, cx| {
2459 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2460 let selections = this.selections.all::<usize>(cx);
2461 let multi_buffer = this.buffer.read(cx);
2462 let buffer = multi_buffer.snapshot(cx);
2463 selections
2464 .iter()
2465 .map(|selection| {
2466 let start_point = selection.start.to_point(&buffer);
2467 let mut indent = buffer.indent_size_for_line(start_point.row);
2468 indent.len = cmp::min(indent.len, start_point.column);
2469 let start = selection.start;
2470 let end = selection.end;
2471 let is_cursor = start == end;
2472 let language_scope = buffer.language_scope_at(start);
2473 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2474 &language_scope
2475 {
2476 let leading_whitespace_len = buffer
2477 .reversed_chars_at(start)
2478 .take_while(|c| c.is_whitespace() && *c != '\n')
2479 .map(|c| c.len_utf8())
2480 .sum::<usize>();
2481
2482 let trailing_whitespace_len = buffer
2483 .chars_at(end)
2484 .take_while(|c| c.is_whitespace() && *c != '\n')
2485 .map(|c| c.len_utf8())
2486 .sum::<usize>();
2487
2488 let insert_extra_newline =
2489 language.brackets().any(|(pair, enabled)| {
2490 let pair_start = pair.start.trim_end();
2491 let pair_end = pair.end.trim_start();
2492
2493 enabled
2494 && pair.newline
2495 && buffer.contains_str_at(
2496 end + trailing_whitespace_len,
2497 pair_end,
2498 )
2499 && buffer.contains_str_at(
2500 (start - leading_whitespace_len)
2501 .saturating_sub(pair_start.len()),
2502 pair_start,
2503 )
2504 });
2505 // Comment extension on newline is allowed only for cursor selections
2506 let comment_delimiter = language.line_comment_prefix().filter(|_| {
2507 let is_comment_extension_enabled =
2508 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2509 is_cursor && is_comment_extension_enabled
2510 });
2511 let comment_delimiter = if let Some(delimiter) = comment_delimiter {
2512 buffer
2513 .buffer_line_for_row(start_point.row)
2514 .is_some_and(|(snapshot, range)| {
2515 let mut index_of_first_non_whitespace = 0;
2516 let line_starts_with_comment = snapshot
2517 .chars_for_range(range)
2518 .skip_while(|c| {
2519 let should_skip = c.is_whitespace();
2520 if should_skip {
2521 index_of_first_non_whitespace += 1;
2522 }
2523 should_skip
2524 })
2525 .take(delimiter.len())
2526 .eq(delimiter.chars());
2527 let cursor_is_placed_after_comment_marker =
2528 index_of_first_non_whitespace + delimiter.len()
2529 <= start_point.column as usize;
2530 line_starts_with_comment
2531 && cursor_is_placed_after_comment_marker
2532 })
2533 .then(|| delimiter.clone())
2534 } else {
2535 None
2536 };
2537 (comment_delimiter, insert_extra_newline)
2538 } else {
2539 (None, false)
2540 };
2541
2542 let capacity_for_delimiter = comment_delimiter
2543 .as_deref()
2544 .map(str::len)
2545 .unwrap_or_default();
2546 let mut new_text =
2547 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2548 new_text.push_str("\n");
2549 new_text.extend(indent.chars());
2550 if let Some(delimiter) = &comment_delimiter {
2551 new_text.push_str(&delimiter);
2552 }
2553 if insert_extra_newline {
2554 new_text = new_text.repeat(2);
2555 }
2556
2557 let anchor = buffer.anchor_after(end);
2558 let new_selection = selection.map(|_| anchor);
2559 (
2560 (start..end, new_text),
2561 (insert_extra_newline, new_selection),
2562 )
2563 })
2564 .unzip()
2565 };
2566
2567 this.edit_with_autoindent(edits, cx);
2568 let buffer = this.buffer.read(cx).snapshot(cx);
2569 let new_selections = selection_fixup_info
2570 .into_iter()
2571 .map(|(extra_newline_inserted, new_selection)| {
2572 let mut cursor = new_selection.end.to_point(&buffer);
2573 if extra_newline_inserted {
2574 cursor.row -= 1;
2575 cursor.column = buffer.line_len(cursor.row);
2576 }
2577 new_selection.map(|_| cursor)
2578 })
2579 .collect();
2580
2581 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2582 this.refresh_copilot_suggestions(true, cx);
2583 });
2584 }
2585
2586 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2587 let buffer = self.buffer.read(cx);
2588 let snapshot = buffer.snapshot(cx);
2589
2590 let mut edits = Vec::new();
2591 let mut rows = Vec::new();
2592 let mut rows_inserted = 0;
2593
2594 for selection in self.selections.all_adjusted(cx) {
2595 let cursor = selection.head();
2596 let row = cursor.row;
2597
2598 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2599
2600 let newline = "\n".to_string();
2601 edits.push((start_of_line..start_of_line, newline));
2602
2603 rows.push(row + rows_inserted);
2604 rows_inserted += 1;
2605 }
2606
2607 self.transact(cx, |editor, cx| {
2608 editor.edit(edits, cx);
2609
2610 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2611 let mut index = 0;
2612 s.move_cursors_with(|map, _, _| {
2613 let row = rows[index];
2614 index += 1;
2615
2616 let point = Point::new(row, 0);
2617 let boundary = map.next_line_boundary(point).1;
2618 let clipped = map.clip_point(boundary, Bias::Left);
2619
2620 (clipped, SelectionGoal::None)
2621 });
2622 });
2623
2624 let mut indent_edits = Vec::new();
2625 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2626 for row in rows {
2627 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2628 for (row, indent) in indents {
2629 if indent.len == 0 {
2630 continue;
2631 }
2632
2633 let text = match indent.kind {
2634 IndentKind::Space => " ".repeat(indent.len as usize),
2635 IndentKind::Tab => "\t".repeat(indent.len as usize),
2636 };
2637 let point = Point::new(row, 0);
2638 indent_edits.push((point..point, text));
2639 }
2640 }
2641 editor.edit(indent_edits, cx);
2642 });
2643 }
2644
2645 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2646 let buffer = self.buffer.read(cx);
2647 let snapshot = buffer.snapshot(cx);
2648
2649 let mut edits = Vec::new();
2650 let mut rows = Vec::new();
2651 let mut rows_inserted = 0;
2652
2653 for selection in self.selections.all_adjusted(cx) {
2654 let cursor = selection.head();
2655 let row = cursor.row;
2656
2657 let point = Point::new(row + 1, 0);
2658 let start_of_line = snapshot.clip_point(point, Bias::Left);
2659
2660 let newline = "\n".to_string();
2661 edits.push((start_of_line..start_of_line, newline));
2662
2663 rows_inserted += 1;
2664 rows.push(row + rows_inserted);
2665 }
2666
2667 self.transact(cx, |editor, cx| {
2668 editor.edit(edits, cx);
2669
2670 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2671 let mut index = 0;
2672 s.move_cursors_with(|map, _, _| {
2673 let row = rows[index];
2674 index += 1;
2675
2676 let point = Point::new(row, 0);
2677 let boundary = map.next_line_boundary(point).1;
2678 let clipped = map.clip_point(boundary, Bias::Left);
2679
2680 (clipped, SelectionGoal::None)
2681 });
2682 });
2683
2684 let mut indent_edits = Vec::new();
2685 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2686 for row in rows {
2687 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2688 for (row, indent) in indents {
2689 if indent.len == 0 {
2690 continue;
2691 }
2692
2693 let text = match indent.kind {
2694 IndentKind::Space => " ".repeat(indent.len as usize),
2695 IndentKind::Tab => "\t".repeat(indent.len as usize),
2696 };
2697 let point = Point::new(row, 0);
2698 indent_edits.push((point..point, text));
2699 }
2700 }
2701 editor.edit(indent_edits, cx);
2702 });
2703 }
2704
2705 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2706 self.insert_with_autoindent_mode(
2707 text,
2708 Some(AutoindentMode::Block {
2709 original_indent_columns: Vec::new(),
2710 }),
2711 cx,
2712 );
2713 }
2714
2715 fn insert_with_autoindent_mode(
2716 &mut self,
2717 text: &str,
2718 autoindent_mode: Option<AutoindentMode>,
2719 cx: &mut ViewContext<Self>,
2720 ) {
2721 if self.read_only(cx) {
2722 return;
2723 }
2724
2725 let text: Arc<str> = text.into();
2726 self.transact(cx, |this, cx| {
2727 let old_selections = this.selections.all_adjusted(cx);
2728 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2729 let anchors = {
2730 let snapshot = buffer.read(cx);
2731 old_selections
2732 .iter()
2733 .map(|s| {
2734 let anchor = snapshot.anchor_after(s.head());
2735 s.map(|_| anchor)
2736 })
2737 .collect::<Vec<_>>()
2738 };
2739 buffer.edit(
2740 old_selections
2741 .iter()
2742 .map(|s| (s.start..s.end, text.clone())),
2743 autoindent_mode,
2744 cx,
2745 );
2746 anchors
2747 });
2748
2749 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2750 s.select_anchors(selection_anchors);
2751 })
2752 });
2753 }
2754
2755 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2756 if !EditorSettings::get_global(cx).show_completions_on_input {
2757 return;
2758 }
2759
2760 let selection = self.selections.newest_anchor();
2761 if self
2762 .buffer
2763 .read(cx)
2764 .is_completion_trigger(selection.head(), text, cx)
2765 {
2766 self.show_completions(&ShowCompletions, cx);
2767 } else {
2768 self.hide_context_menu(cx);
2769 }
2770 }
2771
2772 /// If any empty selections is touching the start of its innermost containing autoclose
2773 /// region, expand it to select the brackets.
2774 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2775 let selections = self.selections.all::<usize>(cx);
2776 let buffer = self.buffer.read(cx).read(cx);
2777 let mut new_selections = Vec::new();
2778 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2779 if let (Some(region), true) = (region, selection.is_empty()) {
2780 let mut range = region.range.to_offset(&buffer);
2781 if selection.start == range.start {
2782 if range.start >= region.pair.start.len() {
2783 range.start -= region.pair.start.len();
2784 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2785 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2786 range.end += region.pair.end.len();
2787 selection.start = range.start;
2788 selection.end = range.end;
2789 }
2790 }
2791 }
2792 }
2793 }
2794 new_selections.push(selection);
2795 }
2796
2797 drop(buffer);
2798 self.change_selections(None, cx, |selections| selections.select(new_selections));
2799 }
2800
2801 /// Iterate the given selections, and for each one, find the smallest surrounding
2802 /// autoclose region. This uses the ordering of the selections and the autoclose
2803 /// regions to avoid repeated comparisons.
2804 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2805 &'a self,
2806 selections: impl IntoIterator<Item = Selection<D>>,
2807 buffer: &'a MultiBufferSnapshot,
2808 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2809 let mut i = 0;
2810 let mut regions = self.autoclose_regions.as_slice();
2811 selections.into_iter().map(move |selection| {
2812 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2813
2814 let mut enclosing = None;
2815 while let Some(pair_state) = regions.get(i) {
2816 if pair_state.range.end.to_offset(buffer) < range.start {
2817 regions = ®ions[i + 1..];
2818 i = 0;
2819 } else if pair_state.range.start.to_offset(buffer) > range.end {
2820 break;
2821 } else {
2822 if pair_state.selection_id == selection.id {
2823 enclosing = Some(pair_state);
2824 }
2825 i += 1;
2826 }
2827 }
2828
2829 (selection.clone(), enclosing)
2830 })
2831 }
2832
2833 /// Remove any autoclose regions that no longer contain their selection.
2834 fn invalidate_autoclose_regions(
2835 &mut self,
2836 mut selections: &[Selection<Anchor>],
2837 buffer: &MultiBufferSnapshot,
2838 ) {
2839 self.autoclose_regions.retain(|state| {
2840 let mut i = 0;
2841 while let Some(selection) = selections.get(i) {
2842 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2843 selections = &selections[1..];
2844 continue;
2845 }
2846 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2847 break;
2848 }
2849 if selection.id == state.selection_id {
2850 return true;
2851 } else {
2852 i += 1;
2853 }
2854 }
2855 false
2856 });
2857 }
2858
2859 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2860 let offset = position.to_offset(buffer);
2861 let (word_range, kind) = buffer.surrounding_word(offset);
2862 if offset > word_range.start && kind == Some(CharKind::Word) {
2863 Some(
2864 buffer
2865 .text_for_range(word_range.start..offset)
2866 .collect::<String>(),
2867 )
2868 } else {
2869 None
2870 }
2871 }
2872
2873 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2874 self.refresh_inlay_hints(
2875 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2876 cx,
2877 );
2878 }
2879
2880 pub fn inlay_hints_enabled(&self) -> bool {
2881 self.inlay_hint_cache.enabled
2882 }
2883
2884 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2885 if self.project.is_none() || self.mode != EditorMode::Full {
2886 return;
2887 }
2888
2889 let reason_description = reason.description();
2890 let (invalidate_cache, required_languages) = match reason {
2891 InlayHintRefreshReason::Toggle(enabled) => {
2892 self.inlay_hint_cache.enabled = enabled;
2893 if enabled {
2894 (InvalidationStrategy::RefreshRequested, None)
2895 } else {
2896 self.inlay_hint_cache.clear();
2897 self.splice_inlay_hints(
2898 self.visible_inlay_hints(cx)
2899 .iter()
2900 .map(|inlay| inlay.id)
2901 .collect(),
2902 Vec::new(),
2903 cx,
2904 );
2905 return;
2906 }
2907 }
2908 InlayHintRefreshReason::SettingsChange(new_settings) => {
2909 match self.inlay_hint_cache.update_settings(
2910 &self.buffer,
2911 new_settings,
2912 self.visible_inlay_hints(cx),
2913 cx,
2914 ) {
2915 ControlFlow::Break(Some(InlaySplice {
2916 to_remove,
2917 to_insert,
2918 })) => {
2919 self.splice_inlay_hints(to_remove, to_insert, cx);
2920 return;
2921 }
2922 ControlFlow::Break(None) => return,
2923 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2924 }
2925 }
2926 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2927 if let Some(InlaySplice {
2928 to_remove,
2929 to_insert,
2930 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2931 {
2932 self.splice_inlay_hints(to_remove, to_insert, cx);
2933 }
2934 return;
2935 }
2936 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2937 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2938 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2939 }
2940 InlayHintRefreshReason::RefreshRequested => {
2941 (InvalidationStrategy::RefreshRequested, None)
2942 }
2943 };
2944
2945 if let Some(InlaySplice {
2946 to_remove,
2947 to_insert,
2948 }) = self.inlay_hint_cache.spawn_hint_refresh(
2949 reason_description,
2950 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
2951 invalidate_cache,
2952 cx,
2953 ) {
2954 self.splice_inlay_hints(to_remove, to_insert, cx);
2955 }
2956 }
2957
2958 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
2959 self.display_map
2960 .read(cx)
2961 .current_inlays()
2962 .filter(move |inlay| {
2963 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
2964 })
2965 .cloned()
2966 .collect()
2967 }
2968
2969 pub fn excerpts_for_inlay_hints_query(
2970 &self,
2971 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
2972 cx: &mut ViewContext<Editor>,
2973 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
2974 let Some(project) = self.project.as_ref() else {
2975 return HashMap::default();
2976 };
2977 let project = project.read(cx);
2978 let multi_buffer = self.buffer().read(cx);
2979 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
2980 let multi_buffer_visible_start = self
2981 .scroll_manager
2982 .anchor()
2983 .anchor
2984 .to_point(&multi_buffer_snapshot);
2985 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
2986 multi_buffer_visible_start
2987 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
2988 Bias::Left,
2989 );
2990 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
2991 multi_buffer
2992 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
2993 .into_iter()
2994 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
2995 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
2996 let buffer = buffer_handle.read(cx);
2997 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
2998 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
2999 let worktree_entry = buffer_worktree
3000 .read(cx)
3001 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3002 if worktree_entry.is_ignored {
3003 return None;
3004 }
3005
3006 let language = buffer.language()?;
3007 if let Some(restrict_to_languages) = restrict_to_languages {
3008 if !restrict_to_languages.contains(language) {
3009 return None;
3010 }
3011 }
3012 Some((
3013 excerpt_id,
3014 (
3015 buffer_handle,
3016 buffer.version().clone(),
3017 excerpt_visible_range,
3018 ),
3019 ))
3020 })
3021 .collect()
3022 }
3023
3024 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3025 TextLayoutDetails {
3026 text_system: cx.text_system().clone(),
3027 editor_style: self.style.clone().unwrap(),
3028 rem_size: cx.rem_size(),
3029 }
3030 }
3031
3032 fn splice_inlay_hints(
3033 &self,
3034 to_remove: Vec<InlayId>,
3035 to_insert: Vec<Inlay>,
3036 cx: &mut ViewContext<Self>,
3037 ) {
3038 self.display_map.update(cx, |display_map, cx| {
3039 display_map.splice_inlays(to_remove, to_insert, cx);
3040 });
3041 cx.notify();
3042 }
3043
3044 fn trigger_on_type_formatting(
3045 &self,
3046 input: String,
3047 cx: &mut ViewContext<Self>,
3048 ) -> Option<Task<Result<()>>> {
3049 if input.len() != 1 {
3050 return None;
3051 }
3052
3053 let project = self.project.as_ref()?;
3054 let position = self.selections.newest_anchor().head();
3055 let (buffer, buffer_position) = self
3056 .buffer
3057 .read(cx)
3058 .text_anchor_for_position(position.clone(), cx)?;
3059
3060 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3061 // hence we do LSP request & edit on host side only — add formats to host's history.
3062 let push_to_lsp_host_history = true;
3063 // If this is not the host, append its history with new edits.
3064 let push_to_client_history = project.read(cx).is_remote();
3065
3066 let on_type_formatting = project.update(cx, |project, cx| {
3067 project.on_type_format(
3068 buffer.clone(),
3069 buffer_position,
3070 input,
3071 push_to_lsp_host_history,
3072 cx,
3073 )
3074 });
3075 Some(cx.spawn(|editor, mut cx| async move {
3076 if let Some(transaction) = on_type_formatting.await? {
3077 if push_to_client_history {
3078 buffer
3079 .update(&mut cx, |buffer, _| {
3080 buffer.push_transaction(transaction, Instant::now());
3081 })
3082 .ok();
3083 }
3084 editor.update(&mut cx, |editor, cx| {
3085 editor.refresh_document_highlights(cx);
3086 })?;
3087 }
3088 Ok(())
3089 }))
3090 }
3091
3092 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3093 if self.pending_rename.is_some() {
3094 return;
3095 }
3096
3097 let Some(provider) = self.completion_provider.as_ref() else {
3098 return;
3099 };
3100
3101 let position = self.selections.newest_anchor().head();
3102 let (buffer, buffer_position) = if let Some(output) = self
3103 .buffer
3104 .read(cx)
3105 .text_anchor_for_position(position.clone(), cx)
3106 {
3107 output
3108 } else {
3109 return;
3110 };
3111
3112 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3113 let completions = provider.completions(&buffer, buffer_position, cx);
3114
3115 let id = post_inc(&mut self.next_completion_id);
3116 let task = cx.spawn(|this, mut cx| {
3117 async move {
3118 let completions = completions.await.log_err();
3119 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3120 let mut menu = CompletionsMenu {
3121 id,
3122 initial_position: position,
3123 match_candidates: completions
3124 .iter()
3125 .enumerate()
3126 .map(|(id, completion)| {
3127 StringMatchCandidate::new(
3128 id,
3129 completion.label.text[completion.label.filter_range.clone()]
3130 .into(),
3131 )
3132 })
3133 .collect(),
3134 buffer,
3135 completions: Arc::new(RwLock::new(completions.into())),
3136 matches: Vec::new().into(),
3137 selected_item: 0,
3138 scroll_handle: UniformListScrollHandle::new(),
3139 };
3140 menu.filter(query.as_deref(), cx.background_executor().clone())
3141 .await;
3142
3143 if menu.matches.is_empty() {
3144 (None, None)
3145 } else {
3146 let pre_resolve_task = this
3147 .update(&mut cx, |editor, cx| {
3148 menu.pre_resolve_completion_documentation(editor, cx)
3149 })
3150 .ok()
3151 .flatten();
3152 (Some(menu), pre_resolve_task)
3153 }
3154 } else {
3155 (None, None)
3156 };
3157
3158 this.update(&mut cx, |this, cx| {
3159 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3160
3161 let mut context_menu = this.context_menu.write();
3162 match context_menu.as_ref() {
3163 None => {}
3164
3165 Some(ContextMenu::Completions(prev_menu)) => {
3166 if prev_menu.id > id {
3167 return;
3168 }
3169 }
3170
3171 _ => return,
3172 }
3173
3174 if this.focus_handle.is_focused(cx) && menu.is_some() {
3175 let menu = menu.unwrap();
3176 *context_menu = Some(ContextMenu::Completions(menu));
3177 drop(context_menu);
3178 this.discard_copilot_suggestion(cx);
3179 cx.notify();
3180 } else if this.completion_tasks.len() <= 1 {
3181 // If there are no more completion tasks and the last menu was
3182 // empty, we should hide it. If it was already hidden, we should
3183 // also show the copilot suggestion when available.
3184 drop(context_menu);
3185 if this.hide_context_menu(cx).is_none() {
3186 this.update_visible_copilot_suggestion(cx);
3187 }
3188 }
3189 })?;
3190
3191 if let Some(pre_resolve_task) = pre_resolve_task {
3192 pre_resolve_task.await;
3193 }
3194
3195 Ok::<_, anyhow::Error>(())
3196 }
3197 .log_err()
3198 });
3199
3200 self.completion_tasks.push((id, task));
3201 }
3202
3203 pub fn confirm_completion(
3204 &mut self,
3205 action: &ConfirmCompletion,
3206 cx: &mut ViewContext<Self>,
3207 ) -> Option<Task<Result<()>>> {
3208 use language::ToOffset as _;
3209
3210 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3211 menu
3212 } else {
3213 return None;
3214 };
3215
3216 let mat = completions_menu
3217 .matches
3218 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3219 let buffer_handle = completions_menu.buffer;
3220 let completions = completions_menu.completions.read();
3221 let completion = completions.get(mat.candidate_id)?;
3222 cx.stop_propagation();
3223
3224 let snippet;
3225 let text;
3226 if completion.is_snippet() {
3227 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3228 text = snippet.as_ref().unwrap().text.clone();
3229 } else {
3230 snippet = None;
3231 text = completion.new_text.clone();
3232 };
3233 let selections = self.selections.all::<usize>(cx);
3234 let buffer = buffer_handle.read(cx);
3235 let old_range = completion.old_range.to_offset(buffer);
3236 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3237
3238 let newest_selection = self.selections.newest_anchor();
3239 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3240 return None;
3241 }
3242
3243 let lookbehind = newest_selection
3244 .start
3245 .text_anchor
3246 .to_offset(buffer)
3247 .saturating_sub(old_range.start);
3248 let lookahead = old_range
3249 .end
3250 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3251 let mut common_prefix_len = old_text
3252 .bytes()
3253 .zip(text.bytes())
3254 .take_while(|(a, b)| a == b)
3255 .count();
3256
3257 let snapshot = self.buffer.read(cx).snapshot(cx);
3258 let mut range_to_replace: Option<Range<isize>> = None;
3259 let mut ranges = Vec::new();
3260 for selection in &selections {
3261 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3262 let start = selection.start.saturating_sub(lookbehind);
3263 let end = selection.end + lookahead;
3264 if selection.id == newest_selection.id {
3265 range_to_replace = Some(
3266 ((start + common_prefix_len) as isize - selection.start as isize)
3267 ..(end as isize - selection.start as isize),
3268 );
3269 }
3270 ranges.push(start + common_prefix_len..end);
3271 } else {
3272 common_prefix_len = 0;
3273 ranges.clear();
3274 ranges.extend(selections.iter().map(|s| {
3275 if s.id == newest_selection.id {
3276 range_to_replace = Some(
3277 old_range.start.to_offset_utf16(&snapshot).0 as isize
3278 - selection.start as isize
3279 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3280 - selection.start as isize,
3281 );
3282 old_range.clone()
3283 } else {
3284 s.start..s.end
3285 }
3286 }));
3287 break;
3288 }
3289 }
3290 let text = &text[common_prefix_len..];
3291
3292 cx.emit(EditorEvent::InputHandled {
3293 utf16_range_to_replace: range_to_replace,
3294 text: text.into(),
3295 });
3296
3297 self.transact(cx, |this, cx| {
3298 if let Some(mut snippet) = snippet {
3299 snippet.text = text.to_string();
3300 for tabstop in snippet.tabstops.iter_mut().flatten() {
3301 tabstop.start -= common_prefix_len as isize;
3302 tabstop.end -= common_prefix_len as isize;
3303 }
3304
3305 this.insert_snippet(&ranges, snippet, cx).log_err();
3306 } else {
3307 this.buffer.update(cx, |buffer, cx| {
3308 buffer.edit(
3309 ranges.iter().map(|range| (range.clone(), text)),
3310 this.autoindent_mode.clone(),
3311 cx,
3312 );
3313 });
3314 }
3315
3316 this.refresh_copilot_suggestions(true, cx);
3317 });
3318
3319 let provider = self.completion_provider.as_ref()?;
3320 let apply_edits = provider.apply_additional_edits_for_completion(
3321 buffer_handle,
3322 completion.clone(),
3323 true,
3324 cx,
3325 );
3326 Some(cx.foreground_executor().spawn(async move {
3327 apply_edits.await?;
3328 Ok(())
3329 }))
3330 }
3331
3332 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3333 let mut context_menu = self.context_menu.write();
3334 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3335 *context_menu = None;
3336 cx.notify();
3337 return;
3338 }
3339 drop(context_menu);
3340
3341 let deployed_from_indicator = action.deployed_from_indicator;
3342 let mut task = self.code_actions_task.take();
3343 cx.spawn(|this, mut cx| async move {
3344 while let Some(prev_task) = task {
3345 prev_task.await;
3346 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3347 }
3348
3349 this.update(&mut cx, |this, cx| {
3350 if this.focus_handle.is_focused(cx) {
3351 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3352 this.completion_tasks.clear();
3353 this.discard_copilot_suggestion(cx);
3354 *this.context_menu.write() =
3355 Some(ContextMenu::CodeActions(CodeActionsMenu {
3356 buffer,
3357 actions,
3358 selected_item: Default::default(),
3359 scroll_handle: UniformListScrollHandle::default(),
3360 deployed_from_indicator,
3361 }));
3362 cx.notify();
3363 }
3364 }
3365 })?;
3366
3367 Ok::<_, anyhow::Error>(())
3368 })
3369 .detach_and_log_err(cx);
3370 }
3371
3372 pub fn confirm_code_action(
3373 &mut self,
3374 action: &ConfirmCodeAction,
3375 cx: &mut ViewContext<Self>,
3376 ) -> Option<Task<Result<()>>> {
3377 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3378 menu
3379 } else {
3380 return None;
3381 };
3382 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3383 let action = actions_menu.actions.get(action_ix)?.clone();
3384 let title = action.lsp_action.title.clone();
3385 let buffer = actions_menu.buffer;
3386 let workspace = self.workspace()?;
3387
3388 let apply_code_actions = workspace
3389 .read(cx)
3390 .project()
3391 .clone()
3392 .update(cx, |project, cx| {
3393 project.apply_code_action(buffer, action, true, cx)
3394 });
3395 let workspace = workspace.downgrade();
3396 Some(cx.spawn(|editor, cx| async move {
3397 let project_transaction = apply_code_actions.await?;
3398 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3399 }))
3400 }
3401
3402 async fn open_project_transaction(
3403 this: &WeakView<Editor>,
3404 workspace: WeakView<Workspace>,
3405 transaction: ProjectTransaction,
3406 title: String,
3407 mut cx: AsyncWindowContext,
3408 ) -> Result<()> {
3409 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3410
3411 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3412 cx.update(|cx| {
3413 entries.sort_unstable_by_key(|(buffer, _)| {
3414 buffer.read(cx).file().map(|f| f.path().clone())
3415 });
3416 })?;
3417
3418 // If the project transaction's edits are all contained within this editor, then
3419 // avoid opening a new editor to display them.
3420
3421 if let Some((buffer, transaction)) = entries.first() {
3422 if entries.len() == 1 {
3423 let excerpt = this.update(&mut cx, |editor, cx| {
3424 editor
3425 .buffer()
3426 .read(cx)
3427 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3428 })?;
3429 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3430 if excerpted_buffer == *buffer {
3431 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3432 let excerpt_range = excerpt_range.to_offset(buffer);
3433 buffer
3434 .edited_ranges_for_transaction::<usize>(transaction)
3435 .all(|range| {
3436 excerpt_range.start <= range.start
3437 && excerpt_range.end >= range.end
3438 })
3439 })?;
3440
3441 if all_edits_within_excerpt {
3442 return Ok(());
3443 }
3444 }
3445 }
3446 }
3447 } else {
3448 return Ok(());
3449 }
3450
3451 let mut ranges_to_highlight = Vec::new();
3452 let excerpt_buffer = cx.new_model(|cx| {
3453 let mut multibuffer =
3454 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3455 for (buffer_handle, transaction) in &entries {
3456 let buffer = buffer_handle.read(cx);
3457 ranges_to_highlight.extend(
3458 multibuffer.push_excerpts_with_context_lines(
3459 buffer_handle.clone(),
3460 buffer
3461 .edited_ranges_for_transaction::<usize>(transaction)
3462 .collect(),
3463 1,
3464 cx,
3465 ),
3466 );
3467 }
3468 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3469 multibuffer
3470 })?;
3471
3472 workspace.update(&mut cx, |workspace, cx| {
3473 let project = workspace.project().clone();
3474 let editor =
3475 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3476 workspace.add_item(Box::new(editor.clone()), cx);
3477 editor.update(cx, |editor, cx| {
3478 editor.highlight_background::<Self>(
3479 ranges_to_highlight,
3480 |theme| theme.editor_highlighted_line_background,
3481 cx,
3482 );
3483 });
3484 })?;
3485
3486 Ok(())
3487 }
3488
3489 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3490 let project = self.project.clone()?;
3491 let buffer = self.buffer.read(cx);
3492 let newest_selection = self.selections.newest_anchor().clone();
3493 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3494 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3495 if start_buffer != end_buffer {
3496 return None;
3497 }
3498
3499 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3500 cx.background_executor()
3501 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3502 .await;
3503
3504 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3505 project.code_actions(&start_buffer, start..end, cx)
3506 }) {
3507 code_actions.await.log_err()
3508 } else {
3509 None
3510 };
3511
3512 this.update(&mut cx, |this, cx| {
3513 this.available_code_actions = actions.and_then(|actions| {
3514 if actions.is_empty() {
3515 None
3516 } else {
3517 Some((start_buffer, actions.into()))
3518 }
3519 });
3520 cx.notify();
3521 })
3522 .log_err();
3523 }));
3524 None
3525 }
3526
3527 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3528 if self.pending_rename.is_some() {
3529 return None;
3530 }
3531
3532 let project = self.project.clone()?;
3533 let buffer = self.buffer.read(cx);
3534 let newest_selection = self.selections.newest_anchor().clone();
3535 let cursor_position = newest_selection.head();
3536 let (cursor_buffer, cursor_buffer_position) =
3537 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3538 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3539 if cursor_buffer != tail_buffer {
3540 return None;
3541 }
3542
3543 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3544 cx.background_executor()
3545 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3546 .await;
3547
3548 let highlights = if let Some(highlights) = project
3549 .update(&mut cx, |project, cx| {
3550 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3551 })
3552 .log_err()
3553 {
3554 highlights.await.log_err()
3555 } else {
3556 None
3557 };
3558
3559 if let Some(highlights) = highlights {
3560 this.update(&mut cx, |this, cx| {
3561 if this.pending_rename.is_some() {
3562 return;
3563 }
3564
3565 let buffer_id = cursor_position.buffer_id;
3566 let buffer = this.buffer.read(cx);
3567 if !buffer
3568 .text_anchor_for_position(cursor_position, cx)
3569 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3570 {
3571 return;
3572 }
3573
3574 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3575 let mut write_ranges = Vec::new();
3576 let mut read_ranges = Vec::new();
3577 for highlight in highlights {
3578 for (excerpt_id, excerpt_range) in
3579 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3580 {
3581 let start = highlight
3582 .range
3583 .start
3584 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3585 let end = highlight
3586 .range
3587 .end
3588 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3589 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3590 continue;
3591 }
3592
3593 let range = Anchor {
3594 buffer_id,
3595 excerpt_id: excerpt_id.clone(),
3596 text_anchor: start,
3597 }..Anchor {
3598 buffer_id,
3599 excerpt_id,
3600 text_anchor: end,
3601 };
3602 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3603 write_ranges.push(range);
3604 } else {
3605 read_ranges.push(range);
3606 }
3607 }
3608 }
3609
3610 this.highlight_background::<DocumentHighlightRead>(
3611 read_ranges,
3612 |theme| theme.editor_document_highlight_read_background,
3613 cx,
3614 );
3615 this.highlight_background::<DocumentHighlightWrite>(
3616 write_ranges,
3617 |theme| theme.editor_document_highlight_write_background,
3618 cx,
3619 );
3620 cx.notify();
3621 })
3622 .log_err();
3623 }
3624 }));
3625 None
3626 }
3627
3628 fn refresh_copilot_suggestions(
3629 &mut self,
3630 debounce: bool,
3631 cx: &mut ViewContext<Self>,
3632 ) -> Option<()> {
3633 let copilot = Copilot::global(cx)?;
3634 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3635 self.clear_copilot_suggestions(cx);
3636 return None;
3637 }
3638 self.update_visible_copilot_suggestion(cx);
3639
3640 let snapshot = self.buffer.read(cx).snapshot(cx);
3641 let cursor = self.selections.newest_anchor().head();
3642 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3643 self.clear_copilot_suggestions(cx);
3644 return None;
3645 }
3646
3647 let (buffer, buffer_position) =
3648 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3649 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3650 if debounce {
3651 cx.background_executor()
3652 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3653 .await;
3654 }
3655
3656 let completions = copilot
3657 .update(&mut cx, |copilot, cx| {
3658 copilot.completions(&buffer, buffer_position, cx)
3659 })
3660 .log_err()
3661 .unwrap_or(Task::ready(Ok(Vec::new())))
3662 .await
3663 .log_err()
3664 .into_iter()
3665 .flatten()
3666 .collect_vec();
3667
3668 this.update(&mut cx, |this, cx| {
3669 if !completions.is_empty() {
3670 this.copilot_state.cycled = false;
3671 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3672 this.copilot_state.completions.clear();
3673 this.copilot_state.active_completion_index = 0;
3674 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3675 for completion in completions {
3676 this.copilot_state.push_completion(completion);
3677 }
3678 this.update_visible_copilot_suggestion(cx);
3679 }
3680 })
3681 .log_err()?;
3682 Some(())
3683 });
3684
3685 Some(())
3686 }
3687
3688 fn cycle_copilot_suggestions(
3689 &mut self,
3690 direction: Direction,
3691 cx: &mut ViewContext<Self>,
3692 ) -> Option<()> {
3693 let copilot = Copilot::global(cx)?;
3694 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3695 return None;
3696 }
3697
3698 if self.copilot_state.cycled {
3699 self.copilot_state.cycle_completions(direction);
3700 self.update_visible_copilot_suggestion(cx);
3701 } else {
3702 let cursor = self.selections.newest_anchor().head();
3703 let (buffer, buffer_position) =
3704 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3705 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3706 let completions = copilot
3707 .update(&mut cx, |copilot, cx| {
3708 copilot.completions_cycling(&buffer, buffer_position, cx)
3709 })
3710 .log_err()?
3711 .await;
3712
3713 this.update(&mut cx, |this, cx| {
3714 this.copilot_state.cycled = true;
3715 for completion in completions.log_err().into_iter().flatten() {
3716 this.copilot_state.push_completion(completion);
3717 }
3718 this.copilot_state.cycle_completions(direction);
3719 this.update_visible_copilot_suggestion(cx);
3720 })
3721 .log_err()?;
3722
3723 Some(())
3724 });
3725 }
3726
3727 Some(())
3728 }
3729
3730 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3731 if !self.has_active_copilot_suggestion(cx) {
3732 self.refresh_copilot_suggestions(false, cx);
3733 return;
3734 }
3735
3736 self.update_visible_copilot_suggestion(cx);
3737 }
3738
3739 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3740 self.show_cursor_names(cx);
3741 }
3742
3743 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3744 self.show_cursor_names = true;
3745 cx.notify();
3746 cx.spawn(|this, mut cx| async move {
3747 cx.background_executor().timer(Duration::from_secs(3)).await;
3748 this.update(&mut cx, |this, cx| {
3749 this.show_cursor_names = false;
3750 cx.notify()
3751 })
3752 .ok()
3753 })
3754 .detach();
3755 }
3756
3757 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3758 if self.has_active_copilot_suggestion(cx) {
3759 self.cycle_copilot_suggestions(Direction::Next, cx);
3760 } else {
3761 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3762 if is_copilot_disabled {
3763 cx.propagate();
3764 }
3765 }
3766 }
3767
3768 fn previous_copilot_suggestion(
3769 &mut self,
3770 _: &copilot::PreviousSuggestion,
3771 cx: &mut ViewContext<Self>,
3772 ) {
3773 if self.has_active_copilot_suggestion(cx) {
3774 self.cycle_copilot_suggestions(Direction::Prev, cx);
3775 } else {
3776 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3777 if is_copilot_disabled {
3778 cx.propagate();
3779 }
3780 }
3781 }
3782
3783 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3784 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3785 if let Some((copilot, completion)) =
3786 Copilot::global(cx).zip(self.copilot_state.active_completion())
3787 {
3788 copilot
3789 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3790 .detach_and_log_err(cx);
3791
3792 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3793 }
3794 cx.emit(EditorEvent::InputHandled {
3795 utf16_range_to_replace: None,
3796 text: suggestion.text.to_string().into(),
3797 });
3798 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3799 cx.notify();
3800 true
3801 } else {
3802 false
3803 }
3804 }
3805
3806 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3807 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3808 if let Some(copilot) = Copilot::global(cx) {
3809 copilot
3810 .update(cx, |copilot, cx| {
3811 copilot.discard_completions(&self.copilot_state.completions, cx)
3812 })
3813 .detach_and_log_err(cx);
3814
3815 self.report_copilot_event(None, false, cx)
3816 }
3817
3818 self.display_map.update(cx, |map, cx| {
3819 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3820 });
3821 cx.notify();
3822 true
3823 } else {
3824 false
3825 }
3826 }
3827
3828 fn is_copilot_enabled_at(
3829 &self,
3830 location: Anchor,
3831 snapshot: &MultiBufferSnapshot,
3832 cx: &mut ViewContext<Self>,
3833 ) -> bool {
3834 let file = snapshot.file_at(location);
3835 let language = snapshot.language_at(location);
3836 let settings = all_language_settings(file, cx);
3837 self.show_copilot_suggestions
3838 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3839 }
3840
3841 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3842 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3843 let buffer = self.buffer.read(cx).read(cx);
3844 suggestion.position.is_valid(&buffer)
3845 } else {
3846 false
3847 }
3848 }
3849
3850 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3851 let suggestion = self.copilot_state.suggestion.take()?;
3852 self.display_map.update(cx, |map, cx| {
3853 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3854 });
3855 let buffer = self.buffer.read(cx).read(cx);
3856
3857 if suggestion.position.is_valid(&buffer) {
3858 Some(suggestion)
3859 } else {
3860 None
3861 }
3862 }
3863
3864 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3865 let snapshot = self.buffer.read(cx).snapshot(cx);
3866 let selection = self.selections.newest_anchor();
3867 let cursor = selection.head();
3868
3869 if self.context_menu.read().is_some()
3870 || !self.completion_tasks.is_empty()
3871 || selection.start != selection.end
3872 {
3873 self.discard_copilot_suggestion(cx);
3874 } else if let Some(text) = self
3875 .copilot_state
3876 .text_for_active_completion(cursor, &snapshot)
3877 {
3878 let text = Rope::from(text);
3879 let mut to_remove = Vec::new();
3880 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3881 to_remove.push(suggestion.id);
3882 }
3883
3884 let suggestion_inlay =
3885 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3886 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3887 self.display_map.update(cx, move |map, cx| {
3888 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3889 });
3890 cx.notify();
3891 } else {
3892 self.discard_copilot_suggestion(cx);
3893 }
3894 }
3895
3896 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3897 self.copilot_state = Default::default();
3898 self.discard_copilot_suggestion(cx);
3899 }
3900
3901 pub fn render_code_actions_indicator(
3902 &self,
3903 _style: &EditorStyle,
3904 is_active: bool,
3905 cx: &mut ViewContext<Self>,
3906 ) -> Option<IconButton> {
3907 if self.available_code_actions.is_some() {
3908 Some(
3909 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3910 .icon_size(IconSize::Small)
3911 .icon_color(Color::Muted)
3912 .selected(is_active)
3913 .on_click(cx.listener(|editor, _e, cx| {
3914 editor.toggle_code_actions(
3915 &ToggleCodeActions {
3916 deployed_from_indicator: true,
3917 },
3918 cx,
3919 );
3920 })),
3921 )
3922 } else {
3923 None
3924 }
3925 }
3926
3927 pub fn render_fold_indicators(
3928 &self,
3929 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
3930 _style: &EditorStyle,
3931 gutter_hovered: bool,
3932 _line_height: Pixels,
3933 _gutter_margin: Pixels,
3934 editor_view: View<Editor>,
3935 ) -> Vec<Option<IconButton>> {
3936 fold_data
3937 .iter()
3938 .enumerate()
3939 .map(|(ix, fold_data)| {
3940 fold_data
3941 .map(|(fold_status, buffer_row, active)| {
3942 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
3943 IconButton::new(ix as usize, ui::IconName::ChevronDown)
3944 .on_click({
3945 let view = editor_view.clone();
3946 move |_e, cx| {
3947 view.update(cx, |editor, cx| match fold_status {
3948 FoldStatus::Folded => {
3949 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
3950 }
3951 FoldStatus::Foldable => {
3952 editor.fold_at(&FoldAt { buffer_row }, cx);
3953 }
3954 })
3955 }
3956 })
3957 .icon_color(ui::Color::Muted)
3958 .icon_size(ui::IconSize::Small)
3959 .selected(fold_status == FoldStatus::Folded)
3960 .selected_icon(ui::IconName::ChevronRight)
3961 .size(ui::ButtonSize::None)
3962 })
3963 })
3964 .flatten()
3965 })
3966 .collect()
3967 }
3968
3969 pub fn context_menu_visible(&self) -> bool {
3970 self.context_menu
3971 .read()
3972 .as_ref()
3973 .map_or(false, |menu| menu.visible())
3974 }
3975
3976 pub fn render_context_menu(
3977 &self,
3978 cursor_position: DisplayPoint,
3979 style: &EditorStyle,
3980 max_height: Pixels,
3981 cx: &mut ViewContext<Editor>,
3982 ) -> Option<(DisplayPoint, AnyElement)> {
3983 self.context_menu.read().as_ref().map(|menu| {
3984 menu.render(
3985 cursor_position,
3986 style,
3987 max_height,
3988 self.workspace.as_ref().map(|(w, _)| w.clone()),
3989 cx,
3990 )
3991 })
3992 }
3993
3994 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
3995 cx.notify();
3996 self.completion_tasks.clear();
3997 let context_menu = self.context_menu.write().take();
3998 if context_menu.is_some() {
3999 self.update_visible_copilot_suggestion(cx);
4000 }
4001 context_menu
4002 }
4003
4004 pub fn insert_snippet(
4005 &mut self,
4006 insertion_ranges: &[Range<usize>],
4007 snippet: Snippet,
4008 cx: &mut ViewContext<Self>,
4009 ) -> Result<()> {
4010 let tabstops = self.buffer.update(cx, |buffer, cx| {
4011 let snippet_text: Arc<str> = snippet.text.clone().into();
4012 buffer.edit(
4013 insertion_ranges
4014 .iter()
4015 .cloned()
4016 .map(|range| (range, snippet_text.clone())),
4017 Some(AutoindentMode::EachLine),
4018 cx,
4019 );
4020
4021 let snapshot = &*buffer.read(cx);
4022 let snippet = &snippet;
4023 snippet
4024 .tabstops
4025 .iter()
4026 .map(|tabstop| {
4027 let mut tabstop_ranges = tabstop
4028 .iter()
4029 .flat_map(|tabstop_range| {
4030 let mut delta = 0_isize;
4031 insertion_ranges.iter().map(move |insertion_range| {
4032 let insertion_start = insertion_range.start as isize + delta;
4033 delta +=
4034 snippet.text.len() as isize - insertion_range.len() as isize;
4035
4036 let start = snapshot.anchor_before(
4037 (insertion_start + tabstop_range.start) as usize,
4038 );
4039 let end = snapshot
4040 .anchor_after((insertion_start + tabstop_range.end) as usize);
4041 start..end
4042 })
4043 })
4044 .collect::<Vec<_>>();
4045 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4046 tabstop_ranges
4047 })
4048 .collect::<Vec<_>>()
4049 });
4050
4051 if let Some(tabstop) = tabstops.first() {
4052 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4053 s.select_ranges(tabstop.iter().cloned());
4054 });
4055 self.snippet_stack.push(SnippetState {
4056 active_index: 0,
4057 ranges: tabstops,
4058 });
4059 }
4060
4061 Ok(())
4062 }
4063
4064 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4065 self.move_to_snippet_tabstop(Bias::Right, cx)
4066 }
4067
4068 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4069 self.move_to_snippet_tabstop(Bias::Left, cx)
4070 }
4071
4072 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4073 if let Some(mut snippet) = self.snippet_stack.pop() {
4074 match bias {
4075 Bias::Left => {
4076 if snippet.active_index > 0 {
4077 snippet.active_index -= 1;
4078 } else {
4079 self.snippet_stack.push(snippet);
4080 return false;
4081 }
4082 }
4083 Bias::Right => {
4084 if snippet.active_index + 1 < snippet.ranges.len() {
4085 snippet.active_index += 1;
4086 } else {
4087 self.snippet_stack.push(snippet);
4088 return false;
4089 }
4090 }
4091 }
4092 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4093 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4094 s.select_anchor_ranges(current_ranges.iter().cloned())
4095 });
4096 // If snippet state is not at the last tabstop, push it back on the stack
4097 if snippet.active_index + 1 < snippet.ranges.len() {
4098 self.snippet_stack.push(snippet);
4099 }
4100 return true;
4101 }
4102 }
4103
4104 false
4105 }
4106
4107 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4108 self.transact(cx, |this, cx| {
4109 this.select_all(&SelectAll, cx);
4110 this.insert("", cx);
4111 });
4112 }
4113
4114 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4115 self.transact(cx, |this, cx| {
4116 this.select_autoclose_pair(cx);
4117 let mut selections = this.selections.all::<Point>(cx);
4118 if !this.selections.line_mode {
4119 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4120 for selection in &mut selections {
4121 if selection.is_empty() {
4122 let old_head = selection.head();
4123 let mut new_head =
4124 movement::left(&display_map, old_head.to_display_point(&display_map))
4125 .to_point(&display_map);
4126 if let Some((buffer, line_buffer_range)) = display_map
4127 .buffer_snapshot
4128 .buffer_line_for_row(old_head.row)
4129 {
4130 let indent_size =
4131 buffer.indent_size_for_line(line_buffer_range.start.row);
4132 let indent_len = match indent_size.kind {
4133 IndentKind::Space => {
4134 buffer.settings_at(line_buffer_range.start, cx).tab_size
4135 }
4136 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4137 };
4138 if old_head.column <= indent_size.len && old_head.column > 0 {
4139 let indent_len = indent_len.get();
4140 new_head = cmp::min(
4141 new_head,
4142 Point::new(
4143 old_head.row,
4144 ((old_head.column - 1) / indent_len) * indent_len,
4145 ),
4146 );
4147 }
4148 }
4149
4150 selection.set_head(new_head, SelectionGoal::None);
4151 }
4152 }
4153 }
4154
4155 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4156 this.insert("", cx);
4157 this.refresh_copilot_suggestions(true, cx);
4158 });
4159 }
4160
4161 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4162 self.transact(cx, |this, cx| {
4163 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4164 let line_mode = s.line_mode;
4165 s.move_with(|map, selection| {
4166 if selection.is_empty() && !line_mode {
4167 let cursor = movement::right(map, selection.head());
4168 selection.end = cursor;
4169 selection.reversed = true;
4170 selection.goal = SelectionGoal::None;
4171 }
4172 })
4173 });
4174 this.insert("", cx);
4175 this.refresh_copilot_suggestions(true, cx);
4176 });
4177 }
4178
4179 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4180 if self.move_to_prev_snippet_tabstop(cx) {
4181 return;
4182 }
4183
4184 self.outdent(&Outdent, cx);
4185 }
4186
4187 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4188 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4189 return;
4190 }
4191
4192 let mut selections = self.selections.all_adjusted(cx);
4193 let buffer = self.buffer.read(cx);
4194 let snapshot = buffer.snapshot(cx);
4195 let rows_iter = selections.iter().map(|s| s.head().row);
4196 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4197
4198 let mut edits = Vec::new();
4199 let mut prev_edited_row = 0;
4200 let mut row_delta = 0;
4201 for selection in &mut selections {
4202 if selection.start.row != prev_edited_row {
4203 row_delta = 0;
4204 }
4205 prev_edited_row = selection.end.row;
4206
4207 // If the selection is non-empty, then increase the indentation of the selected lines.
4208 if !selection.is_empty() {
4209 row_delta =
4210 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4211 continue;
4212 }
4213
4214 // If the selection is empty and the cursor is in the leading whitespace before the
4215 // suggested indentation, then auto-indent the line.
4216 let cursor = selection.head();
4217 let current_indent = snapshot.indent_size_for_line(cursor.row);
4218 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4219 if cursor.column < suggested_indent.len
4220 && cursor.column <= current_indent.len
4221 && current_indent.len <= suggested_indent.len
4222 {
4223 selection.start = Point::new(cursor.row, suggested_indent.len);
4224 selection.end = selection.start;
4225 if row_delta == 0 {
4226 edits.extend(Buffer::edit_for_indent_size_adjustment(
4227 cursor.row,
4228 current_indent,
4229 suggested_indent,
4230 ));
4231 row_delta = suggested_indent.len - current_indent.len;
4232 }
4233 continue;
4234 }
4235 }
4236
4237 // Accept copilot suggestion if there is only one selection and the cursor is not
4238 // in the leading whitespace.
4239 if self.selections.count() == 1
4240 && cursor.column >= current_indent.len
4241 && self.has_active_copilot_suggestion(cx)
4242 {
4243 self.accept_copilot_suggestion(cx);
4244 return;
4245 }
4246
4247 // Otherwise, insert a hard or soft tab.
4248 let settings = buffer.settings_at(cursor, cx);
4249 let tab_size = if settings.hard_tabs {
4250 IndentSize::tab()
4251 } else {
4252 let tab_size = settings.tab_size.get();
4253 let char_column = snapshot
4254 .text_for_range(Point::new(cursor.row, 0)..cursor)
4255 .flat_map(str::chars)
4256 .count()
4257 + row_delta as usize;
4258 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4259 IndentSize::spaces(chars_to_next_tab_stop)
4260 };
4261 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4262 selection.end = selection.start;
4263 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4264 row_delta += tab_size.len;
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 this.refresh_copilot_suggestions(true, cx);
4271 });
4272 }
4273
4274 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4275 let mut selections = self.selections.all::<Point>(cx);
4276 let mut prev_edited_row = 0;
4277 let mut row_delta = 0;
4278 let mut edits = Vec::new();
4279 let buffer = self.buffer.read(cx);
4280 let snapshot = buffer.snapshot(cx);
4281 for selection in &mut selections {
4282 if selection.start.row != prev_edited_row {
4283 row_delta = 0;
4284 }
4285 prev_edited_row = selection.end.row;
4286
4287 row_delta =
4288 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4289 }
4290
4291 self.transact(cx, |this, cx| {
4292 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4293 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4294 });
4295 }
4296
4297 fn indent_selection(
4298 buffer: &MultiBuffer,
4299 snapshot: &MultiBufferSnapshot,
4300 selection: &mut Selection<Point>,
4301 edits: &mut Vec<(Range<Point>, String)>,
4302 delta_for_start_row: u32,
4303 cx: &AppContext,
4304 ) -> u32 {
4305 let settings = buffer.settings_at(selection.start, cx);
4306 let tab_size = settings.tab_size.get();
4307 let indent_kind = if settings.hard_tabs {
4308 IndentKind::Tab
4309 } else {
4310 IndentKind::Space
4311 };
4312 let mut start_row = selection.start.row;
4313 let mut end_row = selection.end.row + 1;
4314
4315 // If a selection ends at the beginning of a line, don't indent
4316 // that last line.
4317 if selection.end.column == 0 {
4318 end_row -= 1;
4319 }
4320
4321 // Avoid re-indenting a row that has already been indented by a
4322 // previous selection, but still update this selection's column
4323 // to reflect that indentation.
4324 if delta_for_start_row > 0 {
4325 start_row += 1;
4326 selection.start.column += delta_for_start_row;
4327 if selection.end.row == selection.start.row {
4328 selection.end.column += delta_for_start_row;
4329 }
4330 }
4331
4332 let mut delta_for_end_row = 0;
4333 for row in start_row..end_row {
4334 let current_indent = snapshot.indent_size_for_line(row);
4335 let indent_delta = match (current_indent.kind, indent_kind) {
4336 (IndentKind::Space, IndentKind::Space) => {
4337 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4338 IndentSize::spaces(columns_to_next_tab_stop)
4339 }
4340 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4341 (_, IndentKind::Tab) => IndentSize::tab(),
4342 };
4343
4344 let row_start = Point::new(row, 0);
4345 edits.push((
4346 row_start..row_start,
4347 indent_delta.chars().collect::<String>(),
4348 ));
4349
4350 // Update this selection's endpoints to reflect the indentation.
4351 if row == selection.start.row {
4352 selection.start.column += indent_delta.len;
4353 }
4354 if row == selection.end.row {
4355 selection.end.column += indent_delta.len;
4356 delta_for_end_row = indent_delta.len;
4357 }
4358 }
4359
4360 if selection.start.row == selection.end.row {
4361 delta_for_start_row + delta_for_end_row
4362 } else {
4363 delta_for_end_row
4364 }
4365 }
4366
4367 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4368 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4369 let selections = self.selections.all::<Point>(cx);
4370 let mut deletion_ranges = Vec::new();
4371 let mut last_outdent = None;
4372 {
4373 let buffer = self.buffer.read(cx);
4374 let snapshot = buffer.snapshot(cx);
4375 for selection in &selections {
4376 let settings = buffer.settings_at(selection.start, cx);
4377 let tab_size = settings.tab_size.get();
4378 let mut rows = selection.spanned_rows(false, &display_map);
4379
4380 // Avoid re-outdenting a row that has already been outdented by a
4381 // previous selection.
4382 if let Some(last_row) = last_outdent {
4383 if last_row == rows.start {
4384 rows.start += 1;
4385 }
4386 }
4387
4388 for row in rows {
4389 let indent_size = snapshot.indent_size_for_line(row);
4390 if indent_size.len > 0 {
4391 let deletion_len = match indent_size.kind {
4392 IndentKind::Space => {
4393 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4394 if columns_to_prev_tab_stop == 0 {
4395 tab_size
4396 } else {
4397 columns_to_prev_tab_stop
4398 }
4399 }
4400 IndentKind::Tab => 1,
4401 };
4402 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4403 last_outdent = Some(row);
4404 }
4405 }
4406 }
4407 }
4408
4409 self.transact(cx, |this, cx| {
4410 this.buffer.update(cx, |buffer, cx| {
4411 let empty_str: Arc<str> = "".into();
4412 buffer.edit(
4413 deletion_ranges
4414 .into_iter()
4415 .map(|range| (range, empty_str.clone())),
4416 None,
4417 cx,
4418 );
4419 });
4420 let selections = this.selections.all::<usize>(cx);
4421 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4422 });
4423 }
4424
4425 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4427 let selections = self.selections.all::<Point>(cx);
4428
4429 let mut new_cursors = Vec::new();
4430 let mut edit_ranges = Vec::new();
4431 let mut selections = selections.iter().peekable();
4432 while let Some(selection) = selections.next() {
4433 let mut rows = selection.spanned_rows(false, &display_map);
4434 let goal_display_column = selection.head().to_display_point(&display_map).column();
4435
4436 // Accumulate contiguous regions of rows that we want to delete.
4437 while let Some(next_selection) = selections.peek() {
4438 let next_rows = next_selection.spanned_rows(false, &display_map);
4439 if next_rows.start <= rows.end {
4440 rows.end = next_rows.end;
4441 selections.next().unwrap();
4442 } else {
4443 break;
4444 }
4445 }
4446
4447 let buffer = &display_map.buffer_snapshot;
4448 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4449 let edit_end;
4450 let cursor_buffer_row;
4451 if buffer.max_point().row >= rows.end {
4452 // If there's a line after the range, delete the \n from the end of the row range
4453 // and position the cursor on the next line.
4454 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4455 cursor_buffer_row = rows.end;
4456 } else {
4457 // If there isn't a line after the range, delete the \n from the line before the
4458 // start of the row range and position the cursor there.
4459 edit_start = edit_start.saturating_sub(1);
4460 edit_end = buffer.len();
4461 cursor_buffer_row = rows.start.saturating_sub(1);
4462 }
4463
4464 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4465 *cursor.column_mut() =
4466 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4467
4468 new_cursors.push((
4469 selection.id,
4470 buffer.anchor_after(cursor.to_point(&display_map)),
4471 ));
4472 edit_ranges.push(edit_start..edit_end);
4473 }
4474
4475 self.transact(cx, |this, cx| {
4476 let buffer = this.buffer.update(cx, |buffer, cx| {
4477 let empty_str: Arc<str> = "".into();
4478 buffer.edit(
4479 edit_ranges
4480 .into_iter()
4481 .map(|range| (range, empty_str.clone())),
4482 None,
4483 cx,
4484 );
4485 buffer.snapshot(cx)
4486 });
4487 let new_selections = new_cursors
4488 .into_iter()
4489 .map(|(id, cursor)| {
4490 let cursor = cursor.to_point(&buffer);
4491 Selection {
4492 id,
4493 start: cursor,
4494 end: cursor,
4495 reversed: false,
4496 goal: SelectionGoal::None,
4497 }
4498 })
4499 .collect();
4500
4501 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4502 s.select(new_selections);
4503 });
4504 });
4505 }
4506
4507 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4508 let mut row_ranges = Vec::<Range<u32>>::new();
4509 for selection in self.selections.all::<Point>(cx) {
4510 let start = selection.start.row;
4511 let end = if selection.start.row == selection.end.row {
4512 selection.start.row + 1
4513 } else {
4514 selection.end.row
4515 };
4516
4517 if let Some(last_row_range) = row_ranges.last_mut() {
4518 if start <= last_row_range.end {
4519 last_row_range.end = end;
4520 continue;
4521 }
4522 }
4523 row_ranges.push(start..end);
4524 }
4525
4526 let snapshot = self.buffer.read(cx).snapshot(cx);
4527 let mut cursor_positions = Vec::new();
4528 for row_range in &row_ranges {
4529 let anchor = snapshot.anchor_before(Point::new(
4530 row_range.end - 1,
4531 snapshot.line_len(row_range.end - 1),
4532 ));
4533 cursor_positions.push(anchor.clone()..anchor);
4534 }
4535
4536 self.transact(cx, |this, cx| {
4537 for row_range in row_ranges.into_iter().rev() {
4538 for row in row_range.rev() {
4539 let end_of_line = Point::new(row, snapshot.line_len(row));
4540 let indent = snapshot.indent_size_for_line(row + 1);
4541 let start_of_next_line = Point::new(row + 1, indent.len);
4542
4543 let replace = if snapshot.line_len(row + 1) > indent.len {
4544 " "
4545 } else {
4546 ""
4547 };
4548
4549 this.buffer.update(cx, |buffer, cx| {
4550 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4551 });
4552 }
4553 }
4554
4555 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4556 s.select_anchor_ranges(cursor_positions)
4557 });
4558 });
4559 }
4560
4561 pub fn sort_lines_case_sensitive(
4562 &mut self,
4563 _: &SortLinesCaseSensitive,
4564 cx: &mut ViewContext<Self>,
4565 ) {
4566 self.manipulate_lines(cx, |lines| lines.sort())
4567 }
4568
4569 pub fn sort_lines_case_insensitive(
4570 &mut self,
4571 _: &SortLinesCaseInsensitive,
4572 cx: &mut ViewContext<Self>,
4573 ) {
4574 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4575 }
4576
4577 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4578 self.manipulate_lines(cx, |lines| lines.reverse())
4579 }
4580
4581 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4582 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4583 }
4584
4585 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4586 where
4587 Fn: FnMut(&mut [&str]),
4588 {
4589 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4590 let buffer = self.buffer.read(cx).snapshot(cx);
4591
4592 let mut edits = Vec::new();
4593
4594 let selections = self.selections.all::<Point>(cx);
4595 let mut selections = selections.iter().peekable();
4596 let mut contiguous_row_selections = Vec::new();
4597 let mut new_selections = Vec::new();
4598
4599 while let Some(selection) = selections.next() {
4600 let (start_row, end_row) = consume_contiguous_rows(
4601 &mut contiguous_row_selections,
4602 selection,
4603 &display_map,
4604 &mut selections,
4605 );
4606
4607 let start_point = Point::new(start_row, 0);
4608 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4609 let text = buffer
4610 .text_for_range(start_point..end_point)
4611 .collect::<String>();
4612 let mut lines = text.split("\n").collect_vec();
4613
4614 let lines_len = lines.len();
4615 callback(&mut lines);
4616
4617 // This is a current limitation with selections.
4618 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4619 debug_assert!(
4620 lines.len() == lines_len,
4621 "callback should not change the number of lines"
4622 );
4623
4624 edits.push((start_point..end_point, lines.join("\n")));
4625 let start_anchor = buffer.anchor_after(start_point);
4626 let end_anchor = buffer.anchor_before(end_point);
4627
4628 // Make selection and push
4629 new_selections.push(Selection {
4630 id: selection.id,
4631 start: start_anchor.to_offset(&buffer),
4632 end: end_anchor.to_offset(&buffer),
4633 goal: SelectionGoal::None,
4634 reversed: selection.reversed,
4635 });
4636 }
4637
4638 self.transact(cx, |this, cx| {
4639 this.buffer.update(cx, |buffer, cx| {
4640 buffer.edit(edits, None, cx);
4641 });
4642
4643 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4644 s.select(new_selections);
4645 });
4646
4647 this.request_autoscroll(Autoscroll::fit(), cx);
4648 });
4649 }
4650
4651 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4652 self.manipulate_text(cx, |text| text.to_uppercase())
4653 }
4654
4655 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4656 self.manipulate_text(cx, |text| text.to_lowercase())
4657 }
4658
4659 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4660 self.manipulate_text(cx, |text| {
4661 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4662 // https://github.com/rutrum/convert-case/issues/16
4663 text.split("\n")
4664 .map(|line| line.to_case(Case::Title))
4665 .join("\n")
4666 })
4667 }
4668
4669 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4670 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4671 }
4672
4673 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4674 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4675 }
4676
4677 pub fn convert_to_upper_camel_case(
4678 &mut self,
4679 _: &ConvertToUpperCamelCase,
4680 cx: &mut ViewContext<Self>,
4681 ) {
4682 self.manipulate_text(cx, |text| {
4683 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4684 // https://github.com/rutrum/convert-case/issues/16
4685 text.split("\n")
4686 .map(|line| line.to_case(Case::UpperCamel))
4687 .join("\n")
4688 })
4689 }
4690
4691 pub fn convert_to_lower_camel_case(
4692 &mut self,
4693 _: &ConvertToLowerCamelCase,
4694 cx: &mut ViewContext<Self>,
4695 ) {
4696 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4697 }
4698
4699 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4700 where
4701 Fn: FnMut(&str) -> String,
4702 {
4703 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4704 let buffer = self.buffer.read(cx).snapshot(cx);
4705
4706 let mut new_selections = Vec::new();
4707 let mut edits = Vec::new();
4708 let mut selection_adjustment = 0i32;
4709
4710 for selection in self.selections.all::<usize>(cx) {
4711 let selection_is_empty = selection.is_empty();
4712
4713 let (start, end) = if selection_is_empty {
4714 let word_range = movement::surrounding_word(
4715 &display_map,
4716 selection.start.to_display_point(&display_map),
4717 );
4718 let start = word_range.start.to_offset(&display_map, Bias::Left);
4719 let end = word_range.end.to_offset(&display_map, Bias::Left);
4720 (start, end)
4721 } else {
4722 (selection.start, selection.end)
4723 };
4724
4725 let text = buffer.text_for_range(start..end).collect::<String>();
4726 let old_length = text.len() as i32;
4727 let text = callback(&text);
4728
4729 new_selections.push(Selection {
4730 start: (start as i32 - selection_adjustment) as usize,
4731 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4732 goal: SelectionGoal::None,
4733 ..selection
4734 });
4735
4736 selection_adjustment += old_length - text.len() as i32;
4737
4738 edits.push((start..end, text));
4739 }
4740
4741 self.transact(cx, |this, cx| {
4742 this.buffer.update(cx, |buffer, cx| {
4743 buffer.edit(edits, None, cx);
4744 });
4745
4746 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4747 s.select(new_selections);
4748 });
4749
4750 this.request_autoscroll(Autoscroll::fit(), cx);
4751 });
4752 }
4753
4754 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4756 let buffer = &display_map.buffer_snapshot;
4757 let selections = self.selections.all::<Point>(cx);
4758
4759 let mut edits = Vec::new();
4760 let mut selections_iter = selections.iter().peekable();
4761 while let Some(selection) = selections_iter.next() {
4762 // Avoid duplicating the same lines twice.
4763 let mut rows = selection.spanned_rows(false, &display_map);
4764
4765 while let Some(next_selection) = selections_iter.peek() {
4766 let next_rows = next_selection.spanned_rows(false, &display_map);
4767 if next_rows.start < rows.end {
4768 rows.end = next_rows.end;
4769 selections_iter.next().unwrap();
4770 } else {
4771 break;
4772 }
4773 }
4774
4775 // Copy the text from the selected row region and splice it at the start of the region.
4776 let start = Point::new(rows.start, 0);
4777 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4778 let text = buffer
4779 .text_for_range(start..end)
4780 .chain(Some("\n"))
4781 .collect::<String>();
4782 edits.push((start..start, text));
4783 }
4784
4785 self.transact(cx, |this, cx| {
4786 this.buffer.update(cx, |buffer, cx| {
4787 buffer.edit(edits, None, cx);
4788 });
4789
4790 this.request_autoscroll(Autoscroll::fit(), cx);
4791 });
4792 }
4793
4794 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4795 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4796 let buffer = self.buffer.read(cx).snapshot(cx);
4797
4798 let mut edits = Vec::new();
4799 let mut unfold_ranges = Vec::new();
4800 let mut refold_ranges = Vec::new();
4801
4802 let selections = self.selections.all::<Point>(cx);
4803 let mut selections = selections.iter().peekable();
4804 let mut contiguous_row_selections = Vec::new();
4805 let mut new_selections = Vec::new();
4806
4807 while let Some(selection) = selections.next() {
4808 // Find all the selections that span a contiguous row range
4809 let (start_row, end_row) = consume_contiguous_rows(
4810 &mut contiguous_row_selections,
4811 selection,
4812 &display_map,
4813 &mut selections,
4814 );
4815
4816 // Move the text spanned by the row range to be before the line preceding the row range
4817 if start_row > 0 {
4818 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4819 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4820 let insertion_point = display_map
4821 .prev_line_boundary(Point::new(start_row - 1, 0))
4822 .0;
4823
4824 // Don't move lines across excerpts
4825 if buffer
4826 .excerpt_boundaries_in_range((
4827 Bound::Excluded(insertion_point),
4828 Bound::Included(range_to_move.end),
4829 ))
4830 .next()
4831 .is_none()
4832 {
4833 let text = buffer
4834 .text_for_range(range_to_move.clone())
4835 .flat_map(|s| s.chars())
4836 .skip(1)
4837 .chain(['\n'])
4838 .collect::<String>();
4839
4840 edits.push((
4841 buffer.anchor_after(range_to_move.start)
4842 ..buffer.anchor_before(range_to_move.end),
4843 String::new(),
4844 ));
4845 let insertion_anchor = buffer.anchor_after(insertion_point);
4846 edits.push((insertion_anchor..insertion_anchor, text));
4847
4848 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4849
4850 // Move selections up
4851 new_selections.extend(contiguous_row_selections.drain(..).map(
4852 |mut selection| {
4853 selection.start.row -= row_delta;
4854 selection.end.row -= row_delta;
4855 selection
4856 },
4857 ));
4858
4859 // Move folds up
4860 unfold_ranges.push(range_to_move.clone());
4861 for fold in display_map.folds_in_range(
4862 buffer.anchor_before(range_to_move.start)
4863 ..buffer.anchor_after(range_to_move.end),
4864 ) {
4865 let mut start = fold.range.start.to_point(&buffer);
4866 let mut end = fold.range.end.to_point(&buffer);
4867 start.row -= row_delta;
4868 end.row -= row_delta;
4869 refold_ranges.push(start..end);
4870 }
4871 }
4872 }
4873
4874 // If we didn't move line(s), preserve the existing selections
4875 new_selections.append(&mut contiguous_row_selections);
4876 }
4877
4878 self.transact(cx, |this, cx| {
4879 this.unfold_ranges(unfold_ranges, true, true, cx);
4880 this.buffer.update(cx, |buffer, cx| {
4881 for (range, text) in edits {
4882 buffer.edit([(range, text)], None, cx);
4883 }
4884 });
4885 this.fold_ranges(refold_ranges, true, cx);
4886 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4887 s.select(new_selections);
4888 })
4889 });
4890 }
4891
4892 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4893 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4894 let buffer = self.buffer.read(cx).snapshot(cx);
4895
4896 let mut edits = Vec::new();
4897 let mut unfold_ranges = Vec::new();
4898 let mut refold_ranges = Vec::new();
4899
4900 let selections = self.selections.all::<Point>(cx);
4901 let mut selections = selections.iter().peekable();
4902 let mut contiguous_row_selections = Vec::new();
4903 let mut new_selections = Vec::new();
4904
4905 while let Some(selection) = selections.next() {
4906 // Find all the selections that span a contiguous row range
4907 let (start_row, end_row) = consume_contiguous_rows(
4908 &mut contiguous_row_selections,
4909 selection,
4910 &display_map,
4911 &mut selections,
4912 );
4913
4914 // Move the text spanned by the row range to be after the last line of the row range
4915 if end_row <= buffer.max_point().row {
4916 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4917 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4918
4919 // Don't move lines across excerpt boundaries
4920 if buffer
4921 .excerpt_boundaries_in_range((
4922 Bound::Excluded(range_to_move.start),
4923 Bound::Included(insertion_point),
4924 ))
4925 .next()
4926 .is_none()
4927 {
4928 let mut text = String::from("\n");
4929 text.extend(buffer.text_for_range(range_to_move.clone()));
4930 text.pop(); // Drop trailing newline
4931 edits.push((
4932 buffer.anchor_after(range_to_move.start)
4933 ..buffer.anchor_before(range_to_move.end),
4934 String::new(),
4935 ));
4936 let insertion_anchor = buffer.anchor_after(insertion_point);
4937 edits.push((insertion_anchor..insertion_anchor, text));
4938
4939 let row_delta = insertion_point.row - range_to_move.end.row + 1;
4940
4941 // Move selections down
4942 new_selections.extend(contiguous_row_selections.drain(..).map(
4943 |mut selection| {
4944 selection.start.row += row_delta;
4945 selection.end.row += row_delta;
4946 selection
4947 },
4948 ));
4949
4950 // Move folds down
4951 unfold_ranges.push(range_to_move.clone());
4952 for fold in display_map.folds_in_range(
4953 buffer.anchor_before(range_to_move.start)
4954 ..buffer.anchor_after(range_to_move.end),
4955 ) {
4956 let mut start = fold.range.start.to_point(&buffer);
4957 let mut end = fold.range.end.to_point(&buffer);
4958 start.row += row_delta;
4959 end.row += row_delta;
4960 refold_ranges.push(start..end);
4961 }
4962 }
4963 }
4964
4965 // If we didn't move line(s), preserve the existing selections
4966 new_selections.append(&mut contiguous_row_selections);
4967 }
4968
4969 self.transact(cx, |this, cx| {
4970 this.unfold_ranges(unfold_ranges, true, true, cx);
4971 this.buffer.update(cx, |buffer, cx| {
4972 for (range, text) in edits {
4973 buffer.edit([(range, text)], None, cx);
4974 }
4975 });
4976 this.fold_ranges(refold_ranges, true, cx);
4977 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
4978 });
4979 }
4980
4981 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
4982 let text_layout_details = &self.text_layout_details(cx);
4983 self.transact(cx, |this, cx| {
4984 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4985 let mut edits: Vec<(Range<usize>, String)> = Default::default();
4986 let line_mode = s.line_mode;
4987 s.move_with(|display_map, selection| {
4988 if !selection.is_empty() || line_mode {
4989 return;
4990 }
4991
4992 let mut head = selection.head();
4993 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
4994 if head.column() == display_map.line_len(head.row()) {
4995 transpose_offset = display_map
4996 .buffer_snapshot
4997 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
4998 }
4999
5000 if transpose_offset == 0 {
5001 return;
5002 }
5003
5004 *head.column_mut() += 1;
5005 head = display_map.clip_point(head, Bias::Right);
5006 let goal = SelectionGoal::HorizontalPosition(
5007 display_map
5008 .x_for_display_point(head, &text_layout_details)
5009 .into(),
5010 );
5011 selection.collapse_to(head, goal);
5012
5013 let transpose_start = display_map
5014 .buffer_snapshot
5015 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5016 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5017 let transpose_end = display_map
5018 .buffer_snapshot
5019 .clip_offset(transpose_offset + 1, Bias::Right);
5020 if let Some(ch) =
5021 display_map.buffer_snapshot.chars_at(transpose_start).next()
5022 {
5023 edits.push((transpose_start..transpose_offset, String::new()));
5024 edits.push((transpose_end..transpose_end, ch.to_string()));
5025 }
5026 }
5027 });
5028 edits
5029 });
5030 this.buffer
5031 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5032 let selections = this.selections.all::<usize>(cx);
5033 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5034 s.select(selections);
5035 });
5036 });
5037 }
5038
5039 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5040 let mut text = String::new();
5041 let buffer = self.buffer.read(cx).snapshot(cx);
5042 let mut selections = self.selections.all::<Point>(cx);
5043 let mut clipboard_selections = Vec::with_capacity(selections.len());
5044 {
5045 let max_point = buffer.max_point();
5046 let mut is_first = true;
5047 for selection in &mut selections {
5048 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5049 if is_entire_line {
5050 selection.start = Point::new(selection.start.row, 0);
5051 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5052 selection.goal = SelectionGoal::None;
5053 }
5054 if is_first {
5055 is_first = false;
5056 } else {
5057 text += "\n";
5058 }
5059 let mut len = 0;
5060 for chunk in buffer.text_for_range(selection.start..selection.end) {
5061 text.push_str(chunk);
5062 len += chunk.len();
5063 }
5064 clipboard_selections.push(ClipboardSelection {
5065 len,
5066 is_entire_line,
5067 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5068 });
5069 }
5070 }
5071
5072 self.transact(cx, |this, cx| {
5073 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5074 s.select(selections);
5075 });
5076 this.insert("", cx);
5077 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5078 });
5079 }
5080
5081 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5082 let selections = self.selections.all::<Point>(cx);
5083 let buffer = self.buffer.read(cx).read(cx);
5084 let mut text = String::new();
5085
5086 let mut clipboard_selections = Vec::with_capacity(selections.len());
5087 {
5088 let max_point = buffer.max_point();
5089 let mut is_first = true;
5090 for selection in selections.iter() {
5091 let mut start = selection.start;
5092 let mut end = selection.end;
5093 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5094 if is_entire_line {
5095 start = Point::new(start.row, 0);
5096 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5097 }
5098 if is_first {
5099 is_first = false;
5100 } else {
5101 text += "\n";
5102 }
5103 let mut len = 0;
5104 for chunk in buffer.text_for_range(start..end) {
5105 text.push_str(chunk);
5106 len += chunk.len();
5107 }
5108 clipboard_selections.push(ClipboardSelection {
5109 len,
5110 is_entire_line,
5111 first_line_indent: buffer.indent_size_for_line(start.row).len,
5112 });
5113 }
5114 }
5115
5116 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5117 }
5118
5119 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5120 if self.read_only(cx) {
5121 return;
5122 }
5123
5124 self.transact(cx, |this, cx| {
5125 if let Some(item) = cx.read_from_clipboard() {
5126 let clipboard_text = Cow::Borrowed(item.text());
5127 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5128 let old_selections = this.selections.all::<usize>(cx);
5129 let all_selections_were_entire_line =
5130 clipboard_selections.iter().all(|s| s.is_entire_line);
5131 let first_selection_indent_column =
5132 clipboard_selections.first().map(|s| s.first_line_indent);
5133 if clipboard_selections.len() != old_selections.len() {
5134 clipboard_selections.drain(..);
5135 }
5136
5137 this.buffer.update(cx, |buffer, cx| {
5138 let snapshot = buffer.read(cx);
5139 let mut start_offset = 0;
5140 let mut edits = Vec::new();
5141 let mut original_indent_columns = Vec::new();
5142 let line_mode = this.selections.line_mode;
5143 for (ix, selection) in old_selections.iter().enumerate() {
5144 let to_insert;
5145 let entire_line;
5146 let original_indent_column;
5147 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5148 let end_offset = start_offset + clipboard_selection.len;
5149 to_insert = &clipboard_text[start_offset..end_offset];
5150 entire_line = clipboard_selection.is_entire_line;
5151 start_offset = end_offset + 1;
5152 original_indent_column =
5153 Some(clipboard_selection.first_line_indent);
5154 } else {
5155 to_insert = clipboard_text.as_str();
5156 entire_line = all_selections_were_entire_line;
5157 original_indent_column = first_selection_indent_column
5158 }
5159
5160 // If the corresponding selection was empty when this slice of the
5161 // clipboard text was written, then the entire line containing the
5162 // selection was copied. If this selection is also currently empty,
5163 // then paste the line before the current line of the buffer.
5164 let range = if selection.is_empty() && !line_mode && entire_line {
5165 let column = selection.start.to_point(&snapshot).column as usize;
5166 let line_start = selection.start - column;
5167 line_start..line_start
5168 } else {
5169 selection.range()
5170 };
5171
5172 edits.push((range, to_insert));
5173 original_indent_columns.extend(original_indent_column);
5174 }
5175 drop(snapshot);
5176
5177 buffer.edit(
5178 edits,
5179 Some(AutoindentMode::Block {
5180 original_indent_columns,
5181 }),
5182 cx,
5183 );
5184 });
5185
5186 let selections = this.selections.all::<usize>(cx);
5187 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5188 } else {
5189 this.insert(&clipboard_text, cx);
5190 }
5191 }
5192 });
5193 }
5194
5195 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5196 if self.read_only(cx) {
5197 return;
5198 }
5199
5200 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5201 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5202 self.change_selections(None, cx, |s| {
5203 s.select_anchors(selections.to_vec());
5204 });
5205 }
5206 self.request_autoscroll(Autoscroll::fit(), cx);
5207 self.unmark_text(cx);
5208 self.refresh_copilot_suggestions(true, cx);
5209 cx.emit(EditorEvent::Edited);
5210 }
5211 }
5212
5213 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5214 if self.read_only(cx) {
5215 return;
5216 }
5217
5218 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5219 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5220 {
5221 self.change_selections(None, cx, |s| {
5222 s.select_anchors(selections.to_vec());
5223 });
5224 }
5225 self.request_autoscroll(Autoscroll::fit(), cx);
5226 self.unmark_text(cx);
5227 self.refresh_copilot_suggestions(true, cx);
5228 cx.emit(EditorEvent::Edited);
5229 }
5230 }
5231
5232 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5233 self.buffer
5234 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5235 }
5236
5237 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5239 let line_mode = s.line_mode;
5240 s.move_with(|map, selection| {
5241 let cursor = if selection.is_empty() && !line_mode {
5242 movement::left(map, selection.start)
5243 } else {
5244 selection.start
5245 };
5246 selection.collapse_to(cursor, SelectionGoal::None);
5247 });
5248 })
5249 }
5250
5251 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5253 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5254 })
5255 }
5256
5257 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5258 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5259 let line_mode = s.line_mode;
5260 s.move_with(|map, selection| {
5261 let cursor = if selection.is_empty() && !line_mode {
5262 movement::right(map, selection.end)
5263 } else {
5264 selection.end
5265 };
5266 selection.collapse_to(cursor, SelectionGoal::None)
5267 });
5268 })
5269 }
5270
5271 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5272 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5273 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5274 })
5275 }
5276
5277 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5278 if self.take_rename(true, cx).is_some() {
5279 return;
5280 }
5281
5282 if matches!(self.mode, EditorMode::SingleLine) {
5283 cx.propagate();
5284 return;
5285 }
5286
5287 let text_layout_details = &self.text_layout_details(cx);
5288
5289 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5290 let line_mode = s.line_mode;
5291 s.move_with(|map, selection| {
5292 if !selection.is_empty() && !line_mode {
5293 selection.goal = SelectionGoal::None;
5294 }
5295 let (cursor, goal) = movement::up(
5296 map,
5297 selection.start,
5298 selection.goal,
5299 false,
5300 &text_layout_details,
5301 );
5302 selection.collapse_to(cursor, goal);
5303 });
5304 })
5305 }
5306
5307 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5308 if self.take_rename(true, cx).is_some() {
5309 return;
5310 }
5311
5312 if matches!(self.mode, EditorMode::SingleLine) {
5313 cx.propagate();
5314 return;
5315 }
5316
5317 let row_count = if let Some(row_count) = self.visible_line_count() {
5318 row_count as u32 - 1
5319 } else {
5320 return;
5321 };
5322
5323 let autoscroll = if action.center_cursor {
5324 Autoscroll::center()
5325 } else {
5326 Autoscroll::fit()
5327 };
5328
5329 let text_layout_details = &self.text_layout_details(cx);
5330
5331 self.change_selections(Some(autoscroll), cx, |s| {
5332 let line_mode = s.line_mode;
5333 s.move_with(|map, selection| {
5334 if !selection.is_empty() && !line_mode {
5335 selection.goal = SelectionGoal::None;
5336 }
5337 let (cursor, goal) = movement::up_by_rows(
5338 map,
5339 selection.end,
5340 row_count,
5341 selection.goal,
5342 false,
5343 &text_layout_details,
5344 );
5345 selection.collapse_to(cursor, goal);
5346 });
5347 });
5348 }
5349
5350 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5351 let text_layout_details = &self.text_layout_details(cx);
5352 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5353 s.move_heads_with(|map, head, goal| {
5354 movement::up(map, head, goal, false, &text_layout_details)
5355 })
5356 })
5357 }
5358
5359 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5360 self.take_rename(true, cx);
5361
5362 if self.mode == EditorMode::SingleLine {
5363 cx.propagate();
5364 return;
5365 }
5366
5367 let text_layout_details = &self.text_layout_details(cx);
5368 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5369 let line_mode = s.line_mode;
5370 s.move_with(|map, selection| {
5371 if !selection.is_empty() && !line_mode {
5372 selection.goal = SelectionGoal::None;
5373 }
5374 let (cursor, goal) = movement::down(
5375 map,
5376 selection.end,
5377 selection.goal,
5378 false,
5379 &text_layout_details,
5380 );
5381 selection.collapse_to(cursor, goal);
5382 });
5383 });
5384 }
5385
5386 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5387 if self.take_rename(true, cx).is_some() {
5388 return;
5389 }
5390
5391 if self
5392 .context_menu
5393 .write()
5394 .as_mut()
5395 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5396 .unwrap_or(false)
5397 {
5398 return;
5399 }
5400
5401 if matches!(self.mode, EditorMode::SingleLine) {
5402 cx.propagate();
5403 return;
5404 }
5405
5406 let row_count = if let Some(row_count) = self.visible_line_count() {
5407 row_count as u32 - 1
5408 } else {
5409 return;
5410 };
5411
5412 let autoscroll = if action.center_cursor {
5413 Autoscroll::center()
5414 } else {
5415 Autoscroll::fit()
5416 };
5417
5418 let text_layout_details = &self.text_layout_details(cx);
5419 self.change_selections(Some(autoscroll), cx, |s| {
5420 let line_mode = s.line_mode;
5421 s.move_with(|map, selection| {
5422 if !selection.is_empty() && !line_mode {
5423 selection.goal = SelectionGoal::None;
5424 }
5425 let (cursor, goal) = movement::down_by_rows(
5426 map,
5427 selection.end,
5428 row_count,
5429 selection.goal,
5430 false,
5431 &text_layout_details,
5432 );
5433 selection.collapse_to(cursor, goal);
5434 });
5435 });
5436 }
5437
5438 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5439 let text_layout_details = &self.text_layout_details(cx);
5440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5441 s.move_heads_with(|map, head, goal| {
5442 movement::down(map, head, goal, false, &text_layout_details)
5443 })
5444 });
5445 }
5446
5447 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5448 if let Some(context_menu) = self.context_menu.write().as_mut() {
5449 context_menu.select_first(self.project.as_ref(), cx);
5450 }
5451 }
5452
5453 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5454 if let Some(context_menu) = self.context_menu.write().as_mut() {
5455 context_menu.select_prev(self.project.as_ref(), cx);
5456 }
5457 }
5458
5459 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5460 if let Some(context_menu) = self.context_menu.write().as_mut() {
5461 context_menu.select_next(self.project.as_ref(), cx);
5462 }
5463 }
5464
5465 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5466 if let Some(context_menu) = self.context_menu.write().as_mut() {
5467 context_menu.select_last(self.project.as_ref(), cx);
5468 }
5469 }
5470
5471 pub fn move_to_previous_word_start(
5472 &mut self,
5473 _: &MoveToPreviousWordStart,
5474 cx: &mut ViewContext<Self>,
5475 ) {
5476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5477 s.move_cursors_with(|map, head, _| {
5478 (
5479 movement::previous_word_start(map, head),
5480 SelectionGoal::None,
5481 )
5482 });
5483 })
5484 }
5485
5486 pub fn move_to_previous_subword_start(
5487 &mut self,
5488 _: &MoveToPreviousSubwordStart,
5489 cx: &mut ViewContext<Self>,
5490 ) {
5491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5492 s.move_cursors_with(|map, head, _| {
5493 (
5494 movement::previous_subword_start(map, head),
5495 SelectionGoal::None,
5496 )
5497 });
5498 })
5499 }
5500
5501 pub fn select_to_previous_word_start(
5502 &mut self,
5503 _: &SelectToPreviousWordStart,
5504 cx: &mut ViewContext<Self>,
5505 ) {
5506 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5507 s.move_heads_with(|map, head, _| {
5508 (
5509 movement::previous_word_start(map, head),
5510 SelectionGoal::None,
5511 )
5512 });
5513 })
5514 }
5515
5516 pub fn select_to_previous_subword_start(
5517 &mut self,
5518 _: &SelectToPreviousSubwordStart,
5519 cx: &mut ViewContext<Self>,
5520 ) {
5521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5522 s.move_heads_with(|map, head, _| {
5523 (
5524 movement::previous_subword_start(map, head),
5525 SelectionGoal::None,
5526 )
5527 });
5528 })
5529 }
5530
5531 pub fn delete_to_previous_word_start(
5532 &mut self,
5533 _: &DeleteToPreviousWordStart,
5534 cx: &mut ViewContext<Self>,
5535 ) {
5536 self.transact(cx, |this, cx| {
5537 this.select_autoclose_pair(cx);
5538 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5539 let line_mode = s.line_mode;
5540 s.move_with(|map, selection| {
5541 if selection.is_empty() && !line_mode {
5542 let cursor = movement::previous_word_start(map, selection.head());
5543 selection.set_head(cursor, SelectionGoal::None);
5544 }
5545 });
5546 });
5547 this.insert("", cx);
5548 });
5549 }
5550
5551 pub fn delete_to_previous_subword_start(
5552 &mut self,
5553 _: &DeleteToPreviousSubwordStart,
5554 cx: &mut ViewContext<Self>,
5555 ) {
5556 self.transact(cx, |this, cx| {
5557 this.select_autoclose_pair(cx);
5558 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5559 let line_mode = s.line_mode;
5560 s.move_with(|map, selection| {
5561 if selection.is_empty() && !line_mode {
5562 let cursor = movement::previous_subword_start(map, selection.head());
5563 selection.set_head(cursor, SelectionGoal::None);
5564 }
5565 });
5566 });
5567 this.insert("", cx);
5568 });
5569 }
5570
5571 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5572 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5573 s.move_cursors_with(|map, head, _| {
5574 (movement::next_word_end(map, head), SelectionGoal::None)
5575 });
5576 })
5577 }
5578
5579 pub fn move_to_next_subword_end(
5580 &mut self,
5581 _: &MoveToNextSubwordEnd,
5582 cx: &mut ViewContext<Self>,
5583 ) {
5584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5585 s.move_cursors_with(|map, head, _| {
5586 (movement::next_subword_end(map, head), SelectionGoal::None)
5587 });
5588 })
5589 }
5590
5591 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5592 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5593 s.move_heads_with(|map, head, _| {
5594 (movement::next_word_end(map, head), SelectionGoal::None)
5595 });
5596 })
5597 }
5598
5599 pub fn select_to_next_subword_end(
5600 &mut self,
5601 _: &SelectToNextSubwordEnd,
5602 cx: &mut ViewContext<Self>,
5603 ) {
5604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5605 s.move_heads_with(|map, head, _| {
5606 (movement::next_subword_end(map, head), SelectionGoal::None)
5607 });
5608 })
5609 }
5610
5611 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5612 self.transact(cx, |this, cx| {
5613 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5614 let line_mode = s.line_mode;
5615 s.move_with(|map, selection| {
5616 if selection.is_empty() && !line_mode {
5617 let cursor = movement::next_word_end(map, selection.head());
5618 selection.set_head(cursor, SelectionGoal::None);
5619 }
5620 });
5621 });
5622 this.insert("", cx);
5623 });
5624 }
5625
5626 pub fn delete_to_next_subword_end(
5627 &mut self,
5628 _: &DeleteToNextSubwordEnd,
5629 cx: &mut ViewContext<Self>,
5630 ) {
5631 self.transact(cx, |this, cx| {
5632 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5633 s.move_with(|map, selection| {
5634 if selection.is_empty() {
5635 let cursor = movement::next_subword_end(map, selection.head());
5636 selection.set_head(cursor, SelectionGoal::None);
5637 }
5638 });
5639 });
5640 this.insert("", cx);
5641 });
5642 }
5643
5644 pub fn move_to_beginning_of_line(
5645 &mut self,
5646 _: &MoveToBeginningOfLine,
5647 cx: &mut ViewContext<Self>,
5648 ) {
5649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5650 s.move_cursors_with(|map, head, _| {
5651 (
5652 movement::indented_line_beginning(map, head, true),
5653 SelectionGoal::None,
5654 )
5655 });
5656 })
5657 }
5658
5659 pub fn select_to_beginning_of_line(
5660 &mut self,
5661 action: &SelectToBeginningOfLine,
5662 cx: &mut ViewContext<Self>,
5663 ) {
5664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5665 s.move_heads_with(|map, head, _| {
5666 (
5667 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5668 SelectionGoal::None,
5669 )
5670 });
5671 });
5672 }
5673
5674 pub fn delete_to_beginning_of_line(
5675 &mut self,
5676 _: &DeleteToBeginningOfLine,
5677 cx: &mut ViewContext<Self>,
5678 ) {
5679 self.transact(cx, |this, cx| {
5680 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5681 s.move_with(|_, selection| {
5682 selection.reversed = true;
5683 });
5684 });
5685
5686 this.select_to_beginning_of_line(
5687 &SelectToBeginningOfLine {
5688 stop_at_soft_wraps: false,
5689 },
5690 cx,
5691 );
5692 this.backspace(&Backspace, cx);
5693 });
5694 }
5695
5696 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5697 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5698 s.move_cursors_with(|map, head, _| {
5699 (movement::line_end(map, head, true), SelectionGoal::None)
5700 });
5701 })
5702 }
5703
5704 pub fn select_to_end_of_line(
5705 &mut self,
5706 action: &SelectToEndOfLine,
5707 cx: &mut ViewContext<Self>,
5708 ) {
5709 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5710 s.move_heads_with(|map, head, _| {
5711 (
5712 movement::line_end(map, head, action.stop_at_soft_wraps),
5713 SelectionGoal::None,
5714 )
5715 });
5716 })
5717 }
5718
5719 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5720 self.transact(cx, |this, cx| {
5721 this.select_to_end_of_line(
5722 &SelectToEndOfLine {
5723 stop_at_soft_wraps: false,
5724 },
5725 cx,
5726 );
5727 this.delete(&Delete, cx);
5728 });
5729 }
5730
5731 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5732 self.transact(cx, |this, cx| {
5733 this.select_to_end_of_line(
5734 &SelectToEndOfLine {
5735 stop_at_soft_wraps: false,
5736 },
5737 cx,
5738 );
5739 this.cut(&Cut, cx);
5740 });
5741 }
5742
5743 pub fn move_to_start_of_paragraph(
5744 &mut self,
5745 _: &MoveToStartOfParagraph,
5746 cx: &mut ViewContext<Self>,
5747 ) {
5748 if matches!(self.mode, EditorMode::SingleLine) {
5749 cx.propagate();
5750 return;
5751 }
5752
5753 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5754 s.move_with(|map, selection| {
5755 selection.collapse_to(
5756 movement::start_of_paragraph(map, selection.head(), 1),
5757 SelectionGoal::None,
5758 )
5759 });
5760 })
5761 }
5762
5763 pub fn move_to_end_of_paragraph(
5764 &mut self,
5765 _: &MoveToEndOfParagraph,
5766 cx: &mut ViewContext<Self>,
5767 ) {
5768 if matches!(self.mode, EditorMode::SingleLine) {
5769 cx.propagate();
5770 return;
5771 }
5772
5773 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5774 s.move_with(|map, selection| {
5775 selection.collapse_to(
5776 movement::end_of_paragraph(map, selection.head(), 1),
5777 SelectionGoal::None,
5778 )
5779 });
5780 })
5781 }
5782
5783 pub fn select_to_start_of_paragraph(
5784 &mut self,
5785 _: &SelectToStartOfParagraph,
5786 cx: &mut ViewContext<Self>,
5787 ) {
5788 if matches!(self.mode, EditorMode::SingleLine) {
5789 cx.propagate();
5790 return;
5791 }
5792
5793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5794 s.move_heads_with(|map, head, _| {
5795 (
5796 movement::start_of_paragraph(map, head, 1),
5797 SelectionGoal::None,
5798 )
5799 });
5800 })
5801 }
5802
5803 pub fn select_to_end_of_paragraph(
5804 &mut self,
5805 _: &SelectToEndOfParagraph,
5806 cx: &mut ViewContext<Self>,
5807 ) {
5808 if matches!(self.mode, EditorMode::SingleLine) {
5809 cx.propagate();
5810 return;
5811 }
5812
5813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5814 s.move_heads_with(|map, head, _| {
5815 (
5816 movement::end_of_paragraph(map, head, 1),
5817 SelectionGoal::None,
5818 )
5819 });
5820 })
5821 }
5822
5823 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5824 if matches!(self.mode, EditorMode::SingleLine) {
5825 cx.propagate();
5826 return;
5827 }
5828
5829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5830 s.select_ranges(vec![0..0]);
5831 });
5832 }
5833
5834 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5835 let mut selection = self.selections.last::<Point>(cx);
5836 selection.set_head(Point::zero(), SelectionGoal::None);
5837
5838 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5839 s.select(vec![selection]);
5840 });
5841 }
5842
5843 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5844 if matches!(self.mode, EditorMode::SingleLine) {
5845 cx.propagate();
5846 return;
5847 }
5848
5849 let cursor = self.buffer.read(cx).read(cx).len();
5850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 s.select_ranges(vec![cursor..cursor])
5852 });
5853 }
5854
5855 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5856 self.nav_history = nav_history;
5857 }
5858
5859 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5860 self.nav_history.as_ref()
5861 }
5862
5863 fn push_to_nav_history(
5864 &mut self,
5865 cursor_anchor: Anchor,
5866 new_position: Option<Point>,
5867 cx: &mut ViewContext<Self>,
5868 ) {
5869 if let Some(nav_history) = self.nav_history.as_mut() {
5870 let buffer = self.buffer.read(cx).read(cx);
5871 let cursor_position = cursor_anchor.to_point(&buffer);
5872 let scroll_state = self.scroll_manager.anchor();
5873 let scroll_top_row = scroll_state.top_row(&buffer);
5874 drop(buffer);
5875
5876 if let Some(new_position) = new_position {
5877 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
5878 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
5879 return;
5880 }
5881 }
5882
5883 nav_history.push(
5884 Some(NavigationData {
5885 cursor_anchor,
5886 cursor_position,
5887 scroll_anchor: scroll_state,
5888 scroll_top_row,
5889 }),
5890 cx,
5891 );
5892 }
5893 }
5894
5895 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
5896 let buffer = self.buffer.read(cx).snapshot(cx);
5897 let mut selection = self.selections.first::<usize>(cx);
5898 selection.set_head(buffer.len(), SelectionGoal::None);
5899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5900 s.select(vec![selection]);
5901 });
5902 }
5903
5904 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
5905 let end = self.buffer.read(cx).read(cx).len();
5906 self.change_selections(None, cx, |s| {
5907 s.select_ranges(vec![0..end]);
5908 });
5909 }
5910
5911 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
5912 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5913 let mut selections = self.selections.all::<Point>(cx);
5914 let max_point = display_map.buffer_snapshot.max_point();
5915 for selection in &mut selections {
5916 let rows = selection.spanned_rows(true, &display_map);
5917 selection.start = Point::new(rows.start, 0);
5918 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
5919 selection.reversed = false;
5920 }
5921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5922 s.select(selections);
5923 });
5924 }
5925
5926 pub fn split_selection_into_lines(
5927 &mut self,
5928 _: &SplitSelectionIntoLines,
5929 cx: &mut ViewContext<Self>,
5930 ) {
5931 let mut to_unfold = Vec::new();
5932 let mut new_selection_ranges = Vec::new();
5933 {
5934 let selections = self.selections.all::<Point>(cx);
5935 let buffer = self.buffer.read(cx).read(cx);
5936 for selection in selections {
5937 for row in selection.start.row..selection.end.row {
5938 let cursor = Point::new(row, buffer.line_len(row));
5939 new_selection_ranges.push(cursor..cursor);
5940 }
5941 new_selection_ranges.push(selection.end..selection.end);
5942 to_unfold.push(selection.start..selection.end);
5943 }
5944 }
5945 self.unfold_ranges(to_unfold, true, true, cx);
5946 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5947 s.select_ranges(new_selection_ranges);
5948 });
5949 }
5950
5951 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
5952 self.add_selection(true, cx);
5953 }
5954
5955 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
5956 self.add_selection(false, cx);
5957 }
5958
5959 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
5960 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5961 let mut selections = self.selections.all::<Point>(cx);
5962 let text_layout_details = self.text_layout_details(cx);
5963 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
5964 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
5965 let range = oldest_selection.display_range(&display_map).sorted();
5966
5967 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
5968 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
5969 let positions = start_x.min(end_x)..start_x.max(end_x);
5970
5971 selections.clear();
5972 let mut stack = Vec::new();
5973 for row in range.start.row()..=range.end.row() {
5974 if let Some(selection) = self.selections.build_columnar_selection(
5975 &display_map,
5976 row,
5977 &positions,
5978 oldest_selection.reversed,
5979 &text_layout_details,
5980 ) {
5981 stack.push(selection.id);
5982 selections.push(selection);
5983 }
5984 }
5985
5986 if above {
5987 stack.reverse();
5988 }
5989
5990 AddSelectionsState { above, stack }
5991 });
5992
5993 let last_added_selection = *state.stack.last().unwrap();
5994 let mut new_selections = Vec::new();
5995 if above == state.above {
5996 let end_row = if above {
5997 0
5998 } else {
5999 display_map.max_point().row()
6000 };
6001
6002 'outer: for selection in selections {
6003 if selection.id == last_added_selection {
6004 let range = selection.display_range(&display_map).sorted();
6005 debug_assert_eq!(range.start.row(), range.end.row());
6006 let mut row = range.start.row();
6007 let positions =
6008 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6009 px(start)..px(end)
6010 } else {
6011 let start_x =
6012 display_map.x_for_display_point(range.start, &text_layout_details);
6013 let end_x =
6014 display_map.x_for_display_point(range.end, &text_layout_details);
6015 start_x.min(end_x)..start_x.max(end_x)
6016 };
6017
6018 while row != end_row {
6019 if above {
6020 row -= 1;
6021 } else {
6022 row += 1;
6023 }
6024
6025 if let Some(new_selection) = self.selections.build_columnar_selection(
6026 &display_map,
6027 row,
6028 &positions,
6029 selection.reversed,
6030 &text_layout_details,
6031 ) {
6032 state.stack.push(new_selection.id);
6033 if above {
6034 new_selections.push(new_selection);
6035 new_selections.push(selection);
6036 } else {
6037 new_selections.push(selection);
6038 new_selections.push(new_selection);
6039 }
6040
6041 continue 'outer;
6042 }
6043 }
6044 }
6045
6046 new_selections.push(selection);
6047 }
6048 } else {
6049 new_selections = selections;
6050 new_selections.retain(|s| s.id != last_added_selection);
6051 state.stack.pop();
6052 }
6053
6054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6055 s.select(new_selections);
6056 });
6057 if state.stack.len() > 1 {
6058 self.add_selections_state = Some(state);
6059 }
6060 }
6061
6062 pub fn select_next_match_internal(
6063 &mut self,
6064 display_map: &DisplaySnapshot,
6065 replace_newest: bool,
6066 autoscroll: Option<Autoscroll>,
6067 cx: &mut ViewContext<Self>,
6068 ) -> Result<()> {
6069 fn select_next_match_ranges(
6070 this: &mut Editor,
6071 range: Range<usize>,
6072 replace_newest: bool,
6073 auto_scroll: Option<Autoscroll>,
6074 cx: &mut ViewContext<Editor>,
6075 ) {
6076 this.unfold_ranges([range.clone()], false, true, cx);
6077 this.change_selections(auto_scroll, cx, |s| {
6078 if replace_newest {
6079 s.delete(s.newest_anchor().id);
6080 }
6081 s.insert_range(range.clone());
6082 });
6083 }
6084
6085 let buffer = &display_map.buffer_snapshot;
6086 let mut selections = self.selections.all::<usize>(cx);
6087 if let Some(mut select_next_state) = self.select_next_state.take() {
6088 let query = &select_next_state.query;
6089 if !select_next_state.done {
6090 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6091 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6092 let mut next_selected_range = None;
6093
6094 let bytes_after_last_selection =
6095 buffer.bytes_in_range(last_selection.end..buffer.len());
6096 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6097 let query_matches = query
6098 .stream_find_iter(bytes_after_last_selection)
6099 .map(|result| (last_selection.end, result))
6100 .chain(
6101 query
6102 .stream_find_iter(bytes_before_first_selection)
6103 .map(|result| (0, result)),
6104 );
6105
6106 for (start_offset, query_match) in query_matches {
6107 let query_match = query_match.unwrap(); // can only fail due to I/O
6108 let offset_range =
6109 start_offset + query_match.start()..start_offset + query_match.end();
6110 let display_range = offset_range.start.to_display_point(&display_map)
6111 ..offset_range.end.to_display_point(&display_map);
6112
6113 if !select_next_state.wordwise
6114 || (!movement::is_inside_word(&display_map, display_range.start)
6115 && !movement::is_inside_word(&display_map, display_range.end))
6116 {
6117 if selections
6118 .iter()
6119 .find(|selection| selection.range().overlaps(&offset_range))
6120 .is_none()
6121 {
6122 next_selected_range = Some(offset_range);
6123 break;
6124 }
6125 }
6126 }
6127
6128 if let Some(next_selected_range) = next_selected_range {
6129 select_next_match_ranges(
6130 self,
6131 next_selected_range,
6132 replace_newest,
6133 autoscroll,
6134 cx,
6135 );
6136 } else {
6137 select_next_state.done = true;
6138 }
6139 }
6140
6141 self.select_next_state = Some(select_next_state);
6142 } else {
6143 let mut only_carets = true;
6144 let mut same_text_selected = true;
6145 let mut selected_text = None;
6146
6147 let mut selections_iter = selections.iter().peekable();
6148 while let Some(selection) = selections_iter.next() {
6149 if selection.start != selection.end {
6150 only_carets = false;
6151 }
6152
6153 if same_text_selected {
6154 if selected_text.is_none() {
6155 selected_text =
6156 Some(buffer.text_for_range(selection.range()).collect::<String>());
6157 }
6158
6159 if let Some(next_selection) = selections_iter.peek() {
6160 if next_selection.range().len() == selection.range().len() {
6161 let next_selected_text = buffer
6162 .text_for_range(next_selection.range())
6163 .collect::<String>();
6164 if Some(next_selected_text) != selected_text {
6165 same_text_selected = false;
6166 selected_text = None;
6167 }
6168 } else {
6169 same_text_selected = false;
6170 selected_text = None;
6171 }
6172 }
6173 }
6174 }
6175
6176 if only_carets {
6177 for selection in &mut selections {
6178 let word_range = movement::surrounding_word(
6179 &display_map,
6180 selection.start.to_display_point(&display_map),
6181 );
6182 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6183 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6184 selection.goal = SelectionGoal::None;
6185 selection.reversed = false;
6186 select_next_match_ranges(
6187 self,
6188 selection.start..selection.end,
6189 replace_newest,
6190 autoscroll,
6191 cx,
6192 );
6193 }
6194
6195 if selections.len() == 1 {
6196 let selection = selections
6197 .last()
6198 .expect("ensured that there's only one selection");
6199 let query = buffer
6200 .text_for_range(selection.start..selection.end)
6201 .collect::<String>();
6202 let is_empty = query.is_empty();
6203 let select_state = SelectNextState {
6204 query: AhoCorasick::new(&[query])?,
6205 wordwise: true,
6206 done: is_empty,
6207 };
6208 self.select_next_state = Some(select_state);
6209 } else {
6210 self.select_next_state = None;
6211 }
6212 } else if let Some(selected_text) = selected_text {
6213 self.select_next_state = Some(SelectNextState {
6214 query: AhoCorasick::new(&[selected_text])?,
6215 wordwise: false,
6216 done: false,
6217 });
6218 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6219 }
6220 }
6221 Ok(())
6222 }
6223
6224 pub fn select_all_matches(
6225 &mut self,
6226 action: &SelectAllMatches,
6227 cx: &mut ViewContext<Self>,
6228 ) -> Result<()> {
6229 self.push_to_selection_history();
6230 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6231
6232 loop {
6233 self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
6234
6235 if self
6236 .select_next_state
6237 .as_ref()
6238 .map(|selection_state| selection_state.done)
6239 .unwrap_or(true)
6240 {
6241 break;
6242 }
6243 }
6244
6245 Ok(())
6246 }
6247
6248 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6249 self.push_to_selection_history();
6250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6251 self.select_next_match_internal(
6252 &display_map,
6253 action.replace_newest,
6254 Some(Autoscroll::newest()),
6255 cx,
6256 )?;
6257 Ok(())
6258 }
6259
6260 pub fn select_previous(
6261 &mut self,
6262 action: &SelectPrevious,
6263 cx: &mut ViewContext<Self>,
6264 ) -> Result<()> {
6265 self.push_to_selection_history();
6266 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6267 let buffer = &display_map.buffer_snapshot;
6268 let mut selections = self.selections.all::<usize>(cx);
6269 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6270 let query = &select_prev_state.query;
6271 if !select_prev_state.done {
6272 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6273 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6274 let mut next_selected_range = None;
6275 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6276 let bytes_before_last_selection =
6277 buffer.reversed_bytes_in_range(0..last_selection.start);
6278 let bytes_after_first_selection =
6279 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6280 let query_matches = query
6281 .stream_find_iter(bytes_before_last_selection)
6282 .map(|result| (last_selection.start, result))
6283 .chain(
6284 query
6285 .stream_find_iter(bytes_after_first_selection)
6286 .map(|result| (buffer.len(), result)),
6287 );
6288 for (end_offset, query_match) in query_matches {
6289 let query_match = query_match.unwrap(); // can only fail due to I/O
6290 let offset_range =
6291 end_offset - query_match.end()..end_offset - query_match.start();
6292 let display_range = offset_range.start.to_display_point(&display_map)
6293 ..offset_range.end.to_display_point(&display_map);
6294
6295 if !select_prev_state.wordwise
6296 || (!movement::is_inside_word(&display_map, display_range.start)
6297 && !movement::is_inside_word(&display_map, display_range.end))
6298 {
6299 next_selected_range = Some(offset_range);
6300 break;
6301 }
6302 }
6303
6304 if let Some(next_selected_range) = next_selected_range {
6305 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6306 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6307 if action.replace_newest {
6308 s.delete(s.newest_anchor().id);
6309 }
6310 s.insert_range(next_selected_range);
6311 });
6312 } else {
6313 select_prev_state.done = true;
6314 }
6315 }
6316
6317 self.select_prev_state = Some(select_prev_state);
6318 } else {
6319 let mut only_carets = true;
6320 let mut same_text_selected = true;
6321 let mut selected_text = None;
6322
6323 let mut selections_iter = selections.iter().peekable();
6324 while let Some(selection) = selections_iter.next() {
6325 if selection.start != selection.end {
6326 only_carets = false;
6327 }
6328
6329 if same_text_selected {
6330 if selected_text.is_none() {
6331 selected_text =
6332 Some(buffer.text_for_range(selection.range()).collect::<String>());
6333 }
6334
6335 if let Some(next_selection) = selections_iter.peek() {
6336 if next_selection.range().len() == selection.range().len() {
6337 let next_selected_text = buffer
6338 .text_for_range(next_selection.range())
6339 .collect::<String>();
6340 if Some(next_selected_text) != selected_text {
6341 same_text_selected = false;
6342 selected_text = None;
6343 }
6344 } else {
6345 same_text_selected = false;
6346 selected_text = None;
6347 }
6348 }
6349 }
6350 }
6351
6352 if only_carets {
6353 for selection in &mut selections {
6354 let word_range = movement::surrounding_word(
6355 &display_map,
6356 selection.start.to_display_point(&display_map),
6357 );
6358 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6359 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6360 selection.goal = SelectionGoal::None;
6361 selection.reversed = false;
6362 }
6363 if selections.len() == 1 {
6364 let selection = selections
6365 .last()
6366 .expect("ensured that there's only one selection");
6367 let query = buffer
6368 .text_for_range(selection.start..selection.end)
6369 .collect::<String>();
6370 let is_empty = query.is_empty();
6371 let select_state = SelectNextState {
6372 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6373 wordwise: true,
6374 done: is_empty,
6375 };
6376 self.select_prev_state = Some(select_state);
6377 } else {
6378 self.select_prev_state = None;
6379 }
6380
6381 self.unfold_ranges(
6382 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6383 false,
6384 true,
6385 cx,
6386 );
6387 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6388 s.select(selections);
6389 });
6390 } else if let Some(selected_text) = selected_text {
6391 self.select_prev_state = Some(SelectNextState {
6392 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6393 wordwise: false,
6394 done: false,
6395 });
6396 self.select_previous(action, cx)?;
6397 }
6398 }
6399 Ok(())
6400 }
6401
6402 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6403 let text_layout_details = &self.text_layout_details(cx);
6404 self.transact(cx, |this, cx| {
6405 let mut selections = this.selections.all::<Point>(cx);
6406 let mut edits = Vec::new();
6407 let mut selection_edit_ranges = Vec::new();
6408 let mut last_toggled_row = None;
6409 let snapshot = this.buffer.read(cx).read(cx);
6410 let empty_str: Arc<str> = "".into();
6411 let mut suffixes_inserted = Vec::new();
6412
6413 fn comment_prefix_range(
6414 snapshot: &MultiBufferSnapshot,
6415 row: u32,
6416 comment_prefix: &str,
6417 comment_prefix_whitespace: &str,
6418 ) -> Range<Point> {
6419 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6420
6421 let mut line_bytes = snapshot
6422 .bytes_in_range(start..snapshot.max_point())
6423 .flatten()
6424 .copied();
6425
6426 // If this line currently begins with the line comment prefix, then record
6427 // the range containing the prefix.
6428 if line_bytes
6429 .by_ref()
6430 .take(comment_prefix.len())
6431 .eq(comment_prefix.bytes())
6432 {
6433 // Include any whitespace that matches the comment prefix.
6434 let matching_whitespace_len = line_bytes
6435 .zip(comment_prefix_whitespace.bytes())
6436 .take_while(|(a, b)| a == b)
6437 .count() as u32;
6438 let end = Point::new(
6439 start.row,
6440 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6441 );
6442 start..end
6443 } else {
6444 start..start
6445 }
6446 }
6447
6448 fn comment_suffix_range(
6449 snapshot: &MultiBufferSnapshot,
6450 row: u32,
6451 comment_suffix: &str,
6452 comment_suffix_has_leading_space: bool,
6453 ) -> Range<Point> {
6454 let end = Point::new(row, snapshot.line_len(row));
6455 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6456
6457 let mut line_end_bytes = snapshot
6458 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6459 .flatten()
6460 .copied();
6461
6462 let leading_space_len = if suffix_start_column > 0
6463 && line_end_bytes.next() == Some(b' ')
6464 && comment_suffix_has_leading_space
6465 {
6466 1
6467 } else {
6468 0
6469 };
6470
6471 // If this line currently begins with the line comment prefix, then record
6472 // the range containing the prefix.
6473 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6474 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6475 start..end
6476 } else {
6477 end..end
6478 }
6479 }
6480
6481 // TODO: Handle selections that cross excerpts
6482 for selection in &mut selections {
6483 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6484 let language = if let Some(language) =
6485 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6486 {
6487 language
6488 } else {
6489 continue;
6490 };
6491
6492 selection_edit_ranges.clear();
6493
6494 // If multiple selections contain a given row, avoid processing that
6495 // row more than once.
6496 let mut start_row = selection.start.row;
6497 if last_toggled_row == Some(start_row) {
6498 start_row += 1;
6499 }
6500 let end_row =
6501 if selection.end.row > selection.start.row && selection.end.column == 0 {
6502 selection.end.row - 1
6503 } else {
6504 selection.end.row
6505 };
6506 last_toggled_row = Some(end_row);
6507
6508 if start_row > end_row {
6509 continue;
6510 }
6511
6512 // If the language has line comments, toggle those.
6513 if let Some(full_comment_prefix) = language.line_comment_prefix() {
6514 // Split the comment prefix's trailing whitespace into a separate string,
6515 // as that portion won't be used for detecting if a line is a comment.
6516 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6517 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6518 let mut all_selection_lines_are_comments = true;
6519
6520 for row in start_row..=end_row {
6521 if snapshot.is_line_blank(row) && start_row < end_row {
6522 continue;
6523 }
6524
6525 let prefix_range = comment_prefix_range(
6526 snapshot.deref(),
6527 row,
6528 comment_prefix,
6529 comment_prefix_whitespace,
6530 );
6531 if prefix_range.is_empty() {
6532 all_selection_lines_are_comments = false;
6533 }
6534 selection_edit_ranges.push(prefix_range);
6535 }
6536
6537 if all_selection_lines_are_comments {
6538 edits.extend(
6539 selection_edit_ranges
6540 .iter()
6541 .cloned()
6542 .map(|range| (range, empty_str.clone())),
6543 );
6544 } else {
6545 let min_column = selection_edit_ranges
6546 .iter()
6547 .map(|r| r.start.column)
6548 .min()
6549 .unwrap_or(0);
6550 edits.extend(selection_edit_ranges.iter().map(|range| {
6551 let position = Point::new(range.start.row, min_column);
6552 (position..position, full_comment_prefix.clone())
6553 }));
6554 }
6555 } else if let Some((full_comment_prefix, comment_suffix)) =
6556 language.block_comment_delimiters()
6557 {
6558 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6559 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6560 let prefix_range = comment_prefix_range(
6561 snapshot.deref(),
6562 start_row,
6563 comment_prefix,
6564 comment_prefix_whitespace,
6565 );
6566 let suffix_range = comment_suffix_range(
6567 snapshot.deref(),
6568 end_row,
6569 comment_suffix.trim_start_matches(' '),
6570 comment_suffix.starts_with(' '),
6571 );
6572
6573 if prefix_range.is_empty() || suffix_range.is_empty() {
6574 edits.push((
6575 prefix_range.start..prefix_range.start,
6576 full_comment_prefix.clone(),
6577 ));
6578 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6579 suffixes_inserted.push((end_row, comment_suffix.len()));
6580 } else {
6581 edits.push((prefix_range, empty_str.clone()));
6582 edits.push((suffix_range, empty_str.clone()));
6583 }
6584 } else {
6585 continue;
6586 }
6587 }
6588
6589 drop(snapshot);
6590 this.buffer.update(cx, |buffer, cx| {
6591 buffer.edit(edits, None, cx);
6592 });
6593
6594 // Adjust selections so that they end before any comment suffixes that
6595 // were inserted.
6596 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6597 let mut selections = this.selections.all::<Point>(cx);
6598 let snapshot = this.buffer.read(cx).read(cx);
6599 for selection in &mut selections {
6600 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6601 match row.cmp(&selection.end.row) {
6602 Ordering::Less => {
6603 suffixes_inserted.next();
6604 continue;
6605 }
6606 Ordering::Greater => break,
6607 Ordering::Equal => {
6608 if selection.end.column == snapshot.line_len(row) {
6609 if selection.is_empty() {
6610 selection.start.column -= suffix_len as u32;
6611 }
6612 selection.end.column -= suffix_len as u32;
6613 }
6614 break;
6615 }
6616 }
6617 }
6618 }
6619
6620 drop(snapshot);
6621 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6622
6623 let selections = this.selections.all::<Point>(cx);
6624 let selections_on_single_row = selections.windows(2).all(|selections| {
6625 selections[0].start.row == selections[1].start.row
6626 && selections[0].end.row == selections[1].end.row
6627 && selections[0].start.row == selections[0].end.row
6628 });
6629 let selections_selecting = selections
6630 .iter()
6631 .any(|selection| selection.start != selection.end);
6632 let advance_downwards = action.advance_downwards
6633 && selections_on_single_row
6634 && !selections_selecting
6635 && this.mode != EditorMode::SingleLine;
6636
6637 if advance_downwards {
6638 let snapshot = this.buffer.read(cx).snapshot(cx);
6639
6640 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6641 s.move_cursors_with(|display_snapshot, display_point, _| {
6642 let mut point = display_point.to_point(display_snapshot);
6643 point.row += 1;
6644 point = snapshot.clip_point(point, Bias::Left);
6645 let display_point = point.to_display_point(display_snapshot);
6646 let goal = SelectionGoal::HorizontalPosition(
6647 display_snapshot
6648 .x_for_display_point(display_point, &text_layout_details)
6649 .into(),
6650 );
6651 (display_point, goal)
6652 })
6653 });
6654 }
6655 });
6656 }
6657
6658 pub fn select_larger_syntax_node(
6659 &mut self,
6660 _: &SelectLargerSyntaxNode,
6661 cx: &mut ViewContext<Self>,
6662 ) {
6663 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6664 let buffer = self.buffer.read(cx).snapshot(cx);
6665 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6666
6667 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6668 let mut selected_larger_node = false;
6669 let new_selections = old_selections
6670 .iter()
6671 .map(|selection| {
6672 let old_range = selection.start..selection.end;
6673 let mut new_range = old_range.clone();
6674 while let Some(containing_range) =
6675 buffer.range_for_syntax_ancestor(new_range.clone())
6676 {
6677 new_range = containing_range;
6678 if !display_map.intersects_fold(new_range.start)
6679 && !display_map.intersects_fold(new_range.end)
6680 {
6681 break;
6682 }
6683 }
6684
6685 selected_larger_node |= new_range != old_range;
6686 Selection {
6687 id: selection.id,
6688 start: new_range.start,
6689 end: new_range.end,
6690 goal: SelectionGoal::None,
6691 reversed: selection.reversed,
6692 }
6693 })
6694 .collect::<Vec<_>>();
6695
6696 if selected_larger_node {
6697 stack.push(old_selections);
6698 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6699 s.select(new_selections);
6700 });
6701 }
6702 self.select_larger_syntax_node_stack = stack;
6703 }
6704
6705 pub fn select_smaller_syntax_node(
6706 &mut self,
6707 _: &SelectSmallerSyntaxNode,
6708 cx: &mut ViewContext<Self>,
6709 ) {
6710 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6711 if let Some(selections) = stack.pop() {
6712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6713 s.select(selections.to_vec());
6714 });
6715 }
6716 self.select_larger_syntax_node_stack = stack;
6717 }
6718
6719 pub fn move_to_enclosing_bracket(
6720 &mut self,
6721 _: &MoveToEnclosingBracket,
6722 cx: &mut ViewContext<Self>,
6723 ) {
6724 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6725 s.move_offsets_with(|snapshot, selection| {
6726 let Some(enclosing_bracket_ranges) =
6727 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6728 else {
6729 return;
6730 };
6731
6732 let mut best_length = usize::MAX;
6733 let mut best_inside = false;
6734 let mut best_in_bracket_range = false;
6735 let mut best_destination = None;
6736 for (open, close) in enclosing_bracket_ranges {
6737 let close = close.to_inclusive();
6738 let length = close.end() - open.start;
6739 let inside = selection.start >= open.end && selection.end <= *close.start();
6740 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6741 || close.contains(&selection.head());
6742
6743 // If best is next to a bracket and current isn't, skip
6744 if !in_bracket_range && best_in_bracket_range {
6745 continue;
6746 }
6747
6748 // Prefer smaller lengths unless best is inside and current isn't
6749 if length > best_length && (best_inside || !inside) {
6750 continue;
6751 }
6752
6753 best_length = length;
6754 best_inside = inside;
6755 best_in_bracket_range = in_bracket_range;
6756 best_destination = Some(
6757 if close.contains(&selection.start) && close.contains(&selection.end) {
6758 if inside {
6759 open.end
6760 } else {
6761 open.start
6762 }
6763 } else {
6764 if inside {
6765 *close.start()
6766 } else {
6767 *close.end()
6768 }
6769 },
6770 );
6771 }
6772
6773 if let Some(destination) = best_destination {
6774 selection.collapse_to(destination, SelectionGoal::None);
6775 }
6776 })
6777 });
6778 }
6779
6780 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6781 self.end_selection(cx);
6782 self.selection_history.mode = SelectionHistoryMode::Undoing;
6783 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6784 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6785 self.select_next_state = entry.select_next_state;
6786 self.select_prev_state = entry.select_prev_state;
6787 self.add_selections_state = entry.add_selections_state;
6788 self.request_autoscroll(Autoscroll::newest(), cx);
6789 }
6790 self.selection_history.mode = SelectionHistoryMode::Normal;
6791 }
6792
6793 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6794 self.end_selection(cx);
6795 self.selection_history.mode = SelectionHistoryMode::Redoing;
6796 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6797 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6798 self.select_next_state = entry.select_next_state;
6799 self.select_prev_state = entry.select_prev_state;
6800 self.add_selections_state = entry.add_selections_state;
6801 self.request_autoscroll(Autoscroll::newest(), cx);
6802 }
6803 self.selection_history.mode = SelectionHistoryMode::Normal;
6804 }
6805
6806 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6807 self.go_to_diagnostic_impl(Direction::Next, cx)
6808 }
6809
6810 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6811 self.go_to_diagnostic_impl(Direction::Prev, cx)
6812 }
6813
6814 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6815 let buffer = self.buffer.read(cx).snapshot(cx);
6816 let selection = self.selections.newest::<usize>(cx);
6817
6818 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6819 if direction == Direction::Next {
6820 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6821 let (group_id, jump_to) = popover.activation_info();
6822 if self.activate_diagnostics(group_id, cx) {
6823 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6824 let mut new_selection = s.newest_anchor().clone();
6825 new_selection.collapse_to(jump_to, SelectionGoal::None);
6826 s.select_anchors(vec![new_selection.clone()]);
6827 });
6828 }
6829 return;
6830 }
6831 }
6832
6833 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6834 active_diagnostics
6835 .primary_range
6836 .to_offset(&buffer)
6837 .to_inclusive()
6838 });
6839 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6840 if active_primary_range.contains(&selection.head()) {
6841 *active_primary_range.end()
6842 } else {
6843 selection.head()
6844 }
6845 } else {
6846 selection.head()
6847 };
6848
6849 loop {
6850 let mut diagnostics = if direction == Direction::Prev {
6851 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6852 } else {
6853 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6854 };
6855 let group = diagnostics.find_map(|entry| {
6856 if entry.diagnostic.is_primary
6857 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6858 && !entry.range.is_empty()
6859 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6860 && !entry.range.contains(&search_start)
6861 {
6862 Some((entry.range, entry.diagnostic.group_id))
6863 } else {
6864 None
6865 }
6866 });
6867
6868 if let Some((primary_range, group_id)) = group {
6869 if self.activate_diagnostics(group_id, cx) {
6870 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6871 s.select(vec![Selection {
6872 id: selection.id,
6873 start: primary_range.start,
6874 end: primary_range.start,
6875 reversed: false,
6876 goal: SelectionGoal::None,
6877 }]);
6878 });
6879 }
6880 break;
6881 } else {
6882 // Cycle around to the start of the buffer, potentially moving back to the start of
6883 // the currently active diagnostic.
6884 active_primary_range.take();
6885 if direction == Direction::Prev {
6886 if search_start == buffer.len() {
6887 break;
6888 } else {
6889 search_start = buffer.len();
6890 }
6891 } else if search_start == 0 {
6892 break;
6893 } else {
6894 search_start = 0;
6895 }
6896 }
6897 }
6898 }
6899
6900 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
6901 let snapshot = self
6902 .display_map
6903 .update(cx, |display_map, cx| display_map.snapshot(cx));
6904 let selection = self.selections.newest::<Point>(cx);
6905
6906 if !self.seek_in_direction(
6907 &snapshot,
6908 selection.head(),
6909 false,
6910 snapshot
6911 .buffer_snapshot
6912 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
6913 cx,
6914 ) {
6915 let wrapped_point = Point::zero();
6916 self.seek_in_direction(
6917 &snapshot,
6918 wrapped_point,
6919 true,
6920 snapshot
6921 .buffer_snapshot
6922 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
6923 cx,
6924 );
6925 }
6926 }
6927
6928 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
6929 let snapshot = self
6930 .display_map
6931 .update(cx, |display_map, cx| display_map.snapshot(cx));
6932 let selection = self.selections.newest::<Point>(cx);
6933
6934 if !self.seek_in_direction(
6935 &snapshot,
6936 selection.head(),
6937 false,
6938 snapshot
6939 .buffer_snapshot
6940 .git_diff_hunks_in_range_rev(0..selection.head().row),
6941 cx,
6942 ) {
6943 let wrapped_point = snapshot.buffer_snapshot.max_point();
6944 self.seek_in_direction(
6945 &snapshot,
6946 wrapped_point,
6947 true,
6948 snapshot
6949 .buffer_snapshot
6950 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
6951 cx,
6952 );
6953 }
6954 }
6955
6956 fn seek_in_direction(
6957 &mut self,
6958 snapshot: &DisplaySnapshot,
6959 initial_point: Point,
6960 is_wrapped: bool,
6961 hunks: impl Iterator<Item = DiffHunk<u32>>,
6962 cx: &mut ViewContext<Editor>,
6963 ) -> bool {
6964 let display_point = initial_point.to_display_point(snapshot);
6965 let mut hunks = hunks
6966 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
6967 .filter(|hunk| {
6968 if is_wrapped {
6969 true
6970 } else {
6971 !hunk.contains_display_row(display_point.row())
6972 }
6973 })
6974 .dedup();
6975
6976 if let Some(hunk) = hunks.next() {
6977 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6978 let row = hunk.start_display_row();
6979 let point = DisplayPoint::new(row, 0);
6980 s.select_display_ranges([point..point]);
6981 });
6982
6983 true
6984 } else {
6985 false
6986 }
6987 }
6988
6989 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
6990 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
6991 }
6992
6993 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
6994 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
6995 }
6996
6997 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
6998 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
6999 }
7000
7001 pub fn go_to_type_definition_split(
7002 &mut self,
7003 _: &GoToTypeDefinitionSplit,
7004 cx: &mut ViewContext<Self>,
7005 ) {
7006 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7007 }
7008
7009 fn go_to_definition_of_kind(
7010 &mut self,
7011 kind: GotoDefinitionKind,
7012 split: bool,
7013 cx: &mut ViewContext<Self>,
7014 ) {
7015 let Some(workspace) = self.workspace() else {
7016 return;
7017 };
7018 let buffer = self.buffer.read(cx);
7019 let head = self.selections.newest::<usize>(cx).head();
7020 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7021 text_anchor
7022 } else {
7023 return;
7024 };
7025
7026 let project = workspace.read(cx).project().clone();
7027 let definitions = project.update(cx, |project, cx| match kind {
7028 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7029 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7030 });
7031
7032 cx.spawn(|editor, mut cx| async move {
7033 let definitions = definitions.await?;
7034 editor.update(&mut cx, |editor, cx| {
7035 editor.navigate_to_definitions(
7036 definitions
7037 .into_iter()
7038 .map(GoToDefinitionLink::Text)
7039 .collect(),
7040 split,
7041 cx,
7042 );
7043 })?;
7044 Ok::<(), anyhow::Error>(())
7045 })
7046 .detach_and_log_err(cx);
7047 }
7048
7049 pub fn navigate_to_definitions(
7050 &mut self,
7051 mut definitions: Vec<GoToDefinitionLink>,
7052 split: bool,
7053 cx: &mut ViewContext<Editor>,
7054 ) {
7055 let Some(workspace) = self.workspace() else {
7056 return;
7057 };
7058 let pane = workspace.read(cx).active_pane().clone();
7059 // If there is one definition, just open it directly
7060 if definitions.len() == 1 {
7061 let definition = definitions.pop().unwrap();
7062 let target_task = match definition {
7063 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7064 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7065 self.compute_target_location(lsp_location, server_id, cx)
7066 }
7067 };
7068 cx.spawn(|editor, mut cx| async move {
7069 let target = target_task.await.context("target resolution task")?;
7070 if let Some(target) = target {
7071 editor.update(&mut cx, |editor, cx| {
7072 let range = target.range.to_offset(target.buffer.read(cx));
7073 let range = editor.range_for_match(&range);
7074 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7075 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7076 s.select_ranges([range]);
7077 });
7078 } else {
7079 cx.window_context().defer(move |cx| {
7080 let target_editor: View<Self> =
7081 workspace.update(cx, |workspace, cx| {
7082 if split {
7083 workspace.split_project_item(target.buffer.clone(), cx)
7084 } else {
7085 workspace.open_project_item(target.buffer.clone(), cx)
7086 }
7087 });
7088 target_editor.update(cx, |target_editor, cx| {
7089 // When selecting a definition in a different buffer, disable the nav history
7090 // to avoid creating a history entry at the previous cursor location.
7091 pane.update(cx, |pane, _| pane.disable_history());
7092 target_editor.change_selections(
7093 Some(Autoscroll::fit()),
7094 cx,
7095 |s| {
7096 s.select_ranges([range]);
7097 },
7098 );
7099 pane.update(cx, |pane, _| pane.enable_history());
7100 });
7101 });
7102 }
7103 })
7104 } else {
7105 Ok(())
7106 }
7107 })
7108 .detach_and_log_err(cx);
7109 } else if !definitions.is_empty() {
7110 let replica_id = self.replica_id(cx);
7111 cx.spawn(|editor, mut cx| async move {
7112 let (title, location_tasks) = editor
7113 .update(&mut cx, |editor, cx| {
7114 let title = definitions
7115 .iter()
7116 .find_map(|definition| match definition {
7117 GoToDefinitionLink::Text(link) => {
7118 link.origin.as_ref().map(|origin| {
7119 let buffer = origin.buffer.read(cx);
7120 format!(
7121 "Definitions for {}",
7122 buffer
7123 .text_for_range(origin.range.clone())
7124 .collect::<String>()
7125 )
7126 })
7127 }
7128 GoToDefinitionLink::InlayHint(_, _) => None,
7129 })
7130 .unwrap_or("Definitions".to_string());
7131 let location_tasks = definitions
7132 .into_iter()
7133 .map(|definition| match definition {
7134 GoToDefinitionLink::Text(link) => {
7135 Task::Ready(Some(Ok(Some(link.target))))
7136 }
7137 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7138 editor.compute_target_location(lsp_location, server_id, cx)
7139 }
7140 })
7141 .collect::<Vec<_>>();
7142 (title, location_tasks)
7143 })
7144 .context("location tasks preparation")?;
7145
7146 let locations = futures::future::join_all(location_tasks)
7147 .await
7148 .into_iter()
7149 .filter_map(|location| location.transpose())
7150 .collect::<Result<_>>()
7151 .context("location tasks")?;
7152 workspace
7153 .update(&mut cx, |workspace, cx| {
7154 Self::open_locations_in_multibuffer(
7155 workspace, locations, replica_id, title, split, cx,
7156 )
7157 })
7158 .ok();
7159
7160 anyhow::Ok(())
7161 })
7162 .detach_and_log_err(cx);
7163 }
7164 }
7165
7166 fn compute_target_location(
7167 &self,
7168 lsp_location: lsp::Location,
7169 server_id: LanguageServerId,
7170 cx: &mut ViewContext<Editor>,
7171 ) -> Task<anyhow::Result<Option<Location>>> {
7172 let Some(project) = self.project.clone() else {
7173 return Task::Ready(Some(Ok(None)));
7174 };
7175
7176 cx.spawn(move |editor, mut cx| async move {
7177 let location_task = editor.update(&mut cx, |editor, cx| {
7178 project.update(cx, |project, cx| {
7179 let language_server_name =
7180 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7181 project
7182 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7183 .map(|(_, lsp_adapter)| {
7184 LanguageServerName(Arc::from(lsp_adapter.name()))
7185 })
7186 });
7187 language_server_name.map(|language_server_name| {
7188 project.open_local_buffer_via_lsp(
7189 lsp_location.uri.clone(),
7190 server_id,
7191 language_server_name,
7192 cx,
7193 )
7194 })
7195 })
7196 })?;
7197 let location = match location_task {
7198 Some(task) => Some({
7199 let target_buffer_handle = task.await.context("open local buffer")?;
7200 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7201 let target_start = target_buffer
7202 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7203 let target_end = target_buffer
7204 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7205 target_buffer.anchor_after(target_start)
7206 ..target_buffer.anchor_before(target_end)
7207 })?;
7208 Location {
7209 buffer: target_buffer_handle,
7210 range,
7211 }
7212 }),
7213 None => None,
7214 };
7215 Ok(location)
7216 })
7217 }
7218
7219 pub fn find_all_references(
7220 &mut self,
7221 _: &FindAllReferences,
7222 cx: &mut ViewContext<Self>,
7223 ) -> Option<Task<Result<()>>> {
7224 let buffer = self.buffer.read(cx);
7225 let head = self.selections.newest::<usize>(cx).head();
7226 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7227 let replica_id = self.replica_id(cx);
7228
7229 let workspace = self.workspace()?;
7230 let project = workspace.read(cx).project().clone();
7231 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7232 Some(cx.spawn(|_, mut cx| async move {
7233 let locations = references.await?;
7234 if locations.is_empty() {
7235 return Ok(());
7236 }
7237
7238 workspace.update(&mut cx, |workspace, cx| {
7239 let title = locations
7240 .first()
7241 .as_ref()
7242 .map(|location| {
7243 let buffer = location.buffer.read(cx);
7244 format!(
7245 "References to `{}`",
7246 buffer
7247 .text_for_range(location.range.clone())
7248 .collect::<String>()
7249 )
7250 })
7251 .unwrap();
7252 Self::open_locations_in_multibuffer(
7253 workspace, locations, replica_id, title, false, cx,
7254 );
7255 })?;
7256
7257 Ok(())
7258 }))
7259 }
7260
7261 /// Opens a multibuffer with the given project locations in it
7262 pub fn open_locations_in_multibuffer(
7263 workspace: &mut Workspace,
7264 mut locations: Vec<Location>,
7265 replica_id: ReplicaId,
7266 title: String,
7267 split: bool,
7268 cx: &mut ViewContext<Workspace>,
7269 ) {
7270 // If there are multiple definitions, open them in a multibuffer
7271 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7272 let mut locations = locations.into_iter().peekable();
7273 let mut ranges_to_highlight = Vec::new();
7274 let capability = workspace.project().read(cx).capability();
7275
7276 let excerpt_buffer = cx.new_model(|cx| {
7277 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7278 while let Some(location) = locations.next() {
7279 let buffer = location.buffer.read(cx);
7280 let mut ranges_for_buffer = Vec::new();
7281 let range = location.range.to_offset(buffer);
7282 ranges_for_buffer.push(range.clone());
7283
7284 while let Some(next_location) = locations.peek() {
7285 if next_location.buffer == location.buffer {
7286 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7287 locations.next();
7288 } else {
7289 break;
7290 }
7291 }
7292
7293 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7294 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7295 location.buffer.clone(),
7296 ranges_for_buffer,
7297 1,
7298 cx,
7299 ))
7300 }
7301
7302 multibuffer.with_title(title)
7303 });
7304
7305 let editor = cx.new_view(|cx| {
7306 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7307 });
7308 editor.update(cx, |editor, cx| {
7309 editor.highlight_background::<Self>(
7310 ranges_to_highlight,
7311 |theme| theme.editor_highlighted_line_background,
7312 cx,
7313 );
7314 });
7315 if split {
7316 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7317 } else {
7318 workspace.add_item(Box::new(editor), cx);
7319 }
7320 }
7321
7322 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7323 use language::ToOffset as _;
7324
7325 let project = self.project.clone()?;
7326 let selection = self.selections.newest_anchor().clone();
7327 let (cursor_buffer, cursor_buffer_position) = self
7328 .buffer
7329 .read(cx)
7330 .text_anchor_for_position(selection.head(), cx)?;
7331 let (tail_buffer, _) = self
7332 .buffer
7333 .read(cx)
7334 .text_anchor_for_position(selection.tail(), cx)?;
7335 if tail_buffer != cursor_buffer {
7336 return None;
7337 }
7338
7339 let snapshot = cursor_buffer.read(cx).snapshot();
7340 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7341 let prepare_rename = project.update(cx, |project, cx| {
7342 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7343 });
7344
7345 Some(cx.spawn(|this, mut cx| async move {
7346 let rename_range = if let Some(range) = prepare_rename.await? {
7347 Some(range)
7348 } else {
7349 this.update(&mut cx, |this, cx| {
7350 let buffer = this.buffer.read(cx).snapshot(cx);
7351 let mut buffer_highlights = this
7352 .document_highlights_for_position(selection.head(), &buffer)
7353 .filter(|highlight| {
7354 highlight.start.excerpt_id == selection.head().excerpt_id
7355 && highlight.end.excerpt_id == selection.head().excerpt_id
7356 });
7357 buffer_highlights
7358 .next()
7359 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7360 })?
7361 };
7362 if let Some(rename_range) = rename_range {
7363 let rename_buffer_range = rename_range.to_offset(&snapshot);
7364 let cursor_offset_in_rename_range =
7365 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7366
7367 this.update(&mut cx, |this, cx| {
7368 this.take_rename(false, cx);
7369 let buffer = this.buffer.read(cx).read(cx);
7370 let cursor_offset = selection.head().to_offset(&buffer);
7371 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7372 let rename_end = rename_start + rename_buffer_range.len();
7373 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7374 let mut old_highlight_id = None;
7375 let old_name: Arc<str> = buffer
7376 .chunks(rename_start..rename_end, true)
7377 .map(|chunk| {
7378 if old_highlight_id.is_none() {
7379 old_highlight_id = chunk.syntax_highlight_id;
7380 }
7381 chunk.text
7382 })
7383 .collect::<String>()
7384 .into();
7385
7386 drop(buffer);
7387
7388 // Position the selection in the rename editor so that it matches the current selection.
7389 this.show_local_selections = false;
7390 let rename_editor = cx.new_view(|cx| {
7391 let mut editor = Editor::single_line(cx);
7392 editor.buffer.update(cx, |buffer, cx| {
7393 buffer.edit([(0..0, old_name.clone())], None, cx)
7394 });
7395 editor.select_all(&SelectAll, cx);
7396 editor
7397 });
7398
7399 let ranges = this
7400 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7401 .into_iter()
7402 .flat_map(|(_, ranges)| ranges.into_iter())
7403 .chain(
7404 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7405 .into_iter()
7406 .flat_map(|(_, ranges)| ranges.into_iter()),
7407 )
7408 .collect();
7409
7410 this.highlight_text::<Rename>(
7411 ranges,
7412 HighlightStyle {
7413 fade_out: Some(0.6),
7414 ..Default::default()
7415 },
7416 cx,
7417 );
7418 let rename_focus_handle = rename_editor.focus_handle(cx);
7419 cx.focus(&rename_focus_handle);
7420 let block_id = this.insert_blocks(
7421 [BlockProperties {
7422 style: BlockStyle::Flex,
7423 position: range.start.clone(),
7424 height: 1,
7425 render: Arc::new({
7426 let rename_editor = rename_editor.clone();
7427 move |cx: &mut BlockContext| {
7428 let mut text_style = cx.editor_style.text.clone();
7429 if let Some(highlight_style) = old_highlight_id
7430 .and_then(|h| h.style(&cx.editor_style.syntax))
7431 {
7432 text_style = text_style.highlight(highlight_style);
7433 }
7434 div()
7435 .pl(cx.anchor_x)
7436 .child(EditorElement::new(
7437 &rename_editor,
7438 EditorStyle {
7439 background: cx.theme().system().transparent,
7440 local_player: cx.editor_style.local_player,
7441 text: text_style,
7442 scrollbar_width: cx.editor_style.scrollbar_width,
7443 syntax: cx.editor_style.syntax.clone(),
7444 status: cx.editor_style.status.clone(),
7445 inlays_style: HighlightStyle {
7446 color: Some(cx.theme().status().hint),
7447 font_weight: Some(FontWeight::BOLD),
7448 ..HighlightStyle::default()
7449 },
7450 suggestions_style: HighlightStyle {
7451 color: Some(cx.theme().status().predictive),
7452 ..HighlightStyle::default()
7453 },
7454 },
7455 ))
7456 .into_any_element()
7457 }
7458 }),
7459 disposition: BlockDisposition::Below,
7460 }],
7461 Some(Autoscroll::fit()),
7462 cx,
7463 )[0];
7464 this.pending_rename = Some(RenameState {
7465 range,
7466 old_name,
7467 editor: rename_editor,
7468 block_id,
7469 });
7470 })?;
7471 }
7472
7473 Ok(())
7474 }))
7475 }
7476
7477 pub fn confirm_rename(
7478 &mut self,
7479 _: &ConfirmRename,
7480 cx: &mut ViewContext<Self>,
7481 ) -> Option<Task<Result<()>>> {
7482 let rename = self.take_rename(false, cx)?;
7483 let workspace = self.workspace()?;
7484 let (start_buffer, start) = self
7485 .buffer
7486 .read(cx)
7487 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7488 let (end_buffer, end) = self
7489 .buffer
7490 .read(cx)
7491 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7492 if start_buffer != end_buffer {
7493 return None;
7494 }
7495
7496 let buffer = start_buffer;
7497 let range = start..end;
7498 let old_name = rename.old_name;
7499 let new_name = rename.editor.read(cx).text(cx);
7500
7501 let rename = workspace
7502 .read(cx)
7503 .project()
7504 .clone()
7505 .update(cx, |project, cx| {
7506 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7507 });
7508 let workspace = workspace.downgrade();
7509
7510 Some(cx.spawn(|editor, mut cx| async move {
7511 let project_transaction = rename.await?;
7512 Self::open_project_transaction(
7513 &editor,
7514 workspace,
7515 project_transaction,
7516 format!("Rename: {} → {}", old_name, new_name),
7517 cx.clone(),
7518 )
7519 .await?;
7520
7521 editor.update(&mut cx, |editor, cx| {
7522 editor.refresh_document_highlights(cx);
7523 })?;
7524 Ok(())
7525 }))
7526 }
7527
7528 fn take_rename(
7529 &mut self,
7530 moving_cursor: bool,
7531 cx: &mut ViewContext<Self>,
7532 ) -> Option<RenameState> {
7533 let rename = self.pending_rename.take()?;
7534 if rename.editor.focus_handle(cx).is_focused(cx) {
7535 cx.focus(&self.focus_handle);
7536 }
7537
7538 self.remove_blocks(
7539 [rename.block_id].into_iter().collect(),
7540 Some(Autoscroll::fit()),
7541 cx,
7542 );
7543 self.clear_highlights::<Rename>(cx);
7544 self.show_local_selections = true;
7545
7546 if moving_cursor {
7547 let rename_editor = rename.editor.read(cx);
7548 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7549
7550 // Update the selection to match the position of the selection inside
7551 // the rename editor.
7552 let snapshot = self.buffer.read(cx).read(cx);
7553 let rename_range = rename.range.to_offset(&snapshot);
7554 let cursor_in_editor = snapshot
7555 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7556 .min(rename_range.end);
7557 drop(snapshot);
7558
7559 self.change_selections(None, cx, |s| {
7560 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7561 });
7562 } else {
7563 self.refresh_document_highlights(cx);
7564 }
7565
7566 Some(rename)
7567 }
7568
7569 #[cfg(any(test, feature = "test-support"))]
7570 pub fn pending_rename(&self) -> Option<&RenameState> {
7571 self.pending_rename.as_ref()
7572 }
7573
7574 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7575 let project = match &self.project {
7576 Some(project) => project.clone(),
7577 None => return None,
7578 };
7579
7580 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7581 }
7582
7583 fn perform_format(
7584 &mut self,
7585 project: Model<Project>,
7586 trigger: FormatTrigger,
7587 cx: &mut ViewContext<Self>,
7588 ) -> Task<Result<()>> {
7589 let buffer = self.buffer().clone();
7590 let buffers = buffer.read(cx).all_buffers();
7591
7592 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7593 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7594
7595 cx.spawn(|_, mut cx| async move {
7596 let transaction = futures::select_biased! {
7597 _ = timeout => {
7598 log::warn!("timed out waiting for formatting");
7599 None
7600 }
7601 transaction = format.log_err().fuse() => transaction,
7602 };
7603
7604 buffer
7605 .update(&mut cx, |buffer, cx| {
7606 if let Some(transaction) = transaction {
7607 if !buffer.is_singleton() {
7608 buffer.push_transaction(&transaction.0, cx);
7609 }
7610 }
7611
7612 cx.notify();
7613 })
7614 .ok();
7615
7616 Ok(())
7617 })
7618 }
7619
7620 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7621 if let Some(project) = self.project.clone() {
7622 self.buffer.update(cx, |multi_buffer, cx| {
7623 project.update(cx, |project, cx| {
7624 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7625 });
7626 })
7627 }
7628 }
7629
7630 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7631 cx.show_character_palette();
7632 }
7633
7634 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7635 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7636 let buffer = self.buffer.read(cx).snapshot(cx);
7637 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7638 let is_valid = buffer
7639 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7640 .any(|entry| {
7641 entry.diagnostic.is_primary
7642 && !entry.range.is_empty()
7643 && entry.range.start == primary_range_start
7644 && entry.diagnostic.message == active_diagnostics.primary_message
7645 });
7646
7647 if is_valid != active_diagnostics.is_valid {
7648 active_diagnostics.is_valid = is_valid;
7649 let mut new_styles = HashMap::default();
7650 for (block_id, diagnostic) in &active_diagnostics.blocks {
7651 new_styles.insert(
7652 *block_id,
7653 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7654 );
7655 }
7656 self.display_map
7657 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7658 }
7659 }
7660 }
7661
7662 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7663 self.dismiss_diagnostics(cx);
7664 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7665 let buffer = self.buffer.read(cx).snapshot(cx);
7666
7667 let mut primary_range = None;
7668 let mut primary_message = None;
7669 let mut group_end = Point::zero();
7670 let diagnostic_group = buffer
7671 .diagnostic_group::<Point>(group_id)
7672 .map(|entry| {
7673 if entry.range.end > group_end {
7674 group_end = entry.range.end;
7675 }
7676 if entry.diagnostic.is_primary {
7677 primary_range = Some(entry.range.clone());
7678 primary_message = Some(entry.diagnostic.message.clone());
7679 }
7680 entry
7681 })
7682 .collect::<Vec<_>>();
7683 let primary_range = primary_range?;
7684 let primary_message = primary_message?;
7685 let primary_range =
7686 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7687
7688 let blocks = display_map
7689 .insert_blocks(
7690 diagnostic_group.iter().map(|entry| {
7691 let diagnostic = entry.diagnostic.clone();
7692 let message_height = diagnostic.message.lines().count() as u8;
7693 BlockProperties {
7694 style: BlockStyle::Fixed,
7695 position: buffer.anchor_after(entry.range.start),
7696 height: message_height,
7697 render: diagnostic_block_renderer(diagnostic, true),
7698 disposition: BlockDisposition::Below,
7699 }
7700 }),
7701 cx,
7702 )
7703 .into_iter()
7704 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7705 .collect();
7706
7707 Some(ActiveDiagnosticGroup {
7708 primary_range,
7709 primary_message,
7710 blocks,
7711 is_valid: true,
7712 })
7713 });
7714 self.active_diagnostics.is_some()
7715 }
7716
7717 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7718 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7719 self.display_map.update(cx, |display_map, cx| {
7720 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7721 });
7722 cx.notify();
7723 }
7724 }
7725
7726 pub fn set_selections_from_remote(
7727 &mut self,
7728 selections: Vec<Selection<Anchor>>,
7729 pending_selection: Option<Selection<Anchor>>,
7730 cx: &mut ViewContext<Self>,
7731 ) {
7732 let old_cursor_position = self.selections.newest_anchor().head();
7733 self.selections.change_with(cx, |s| {
7734 s.select_anchors(selections);
7735 if let Some(pending_selection) = pending_selection {
7736 s.set_pending(pending_selection, SelectMode::Character);
7737 } else {
7738 s.clear_pending();
7739 }
7740 });
7741 self.selections_did_change(false, &old_cursor_position, cx);
7742 }
7743
7744 fn push_to_selection_history(&mut self) {
7745 self.selection_history.push(SelectionHistoryEntry {
7746 selections: self.selections.disjoint_anchors(),
7747 select_next_state: self.select_next_state.clone(),
7748 select_prev_state: self.select_prev_state.clone(),
7749 add_selections_state: self.add_selections_state.clone(),
7750 });
7751 }
7752
7753 pub fn transact(
7754 &mut self,
7755 cx: &mut ViewContext<Self>,
7756 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7757 ) -> Option<TransactionId> {
7758 self.start_transaction_at(Instant::now(), cx);
7759 update(self, cx);
7760 self.end_transaction_at(Instant::now(), cx)
7761 }
7762
7763 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7764 self.end_selection(cx);
7765 if let Some(tx_id) = self
7766 .buffer
7767 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7768 {
7769 self.selection_history
7770 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7771 }
7772 }
7773
7774 fn end_transaction_at(
7775 &mut self,
7776 now: Instant,
7777 cx: &mut ViewContext<Self>,
7778 ) -> Option<TransactionId> {
7779 if let Some(tx_id) = self
7780 .buffer
7781 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7782 {
7783 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7784 *end_selections = Some(self.selections.disjoint_anchors());
7785 } else {
7786 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7787 }
7788
7789 cx.emit(EditorEvent::Edited);
7790 Some(tx_id)
7791 } else {
7792 None
7793 }
7794 }
7795
7796 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7797 let mut fold_ranges = Vec::new();
7798
7799 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7800
7801 let selections = self.selections.all_adjusted(cx);
7802 for selection in selections {
7803 let range = selection.range().sorted();
7804 let buffer_start_row = range.start.row;
7805
7806 for row in (0..=range.end.row).rev() {
7807 let fold_range = display_map.foldable_range(row);
7808
7809 if let Some(fold_range) = fold_range {
7810 if fold_range.end.row >= buffer_start_row {
7811 fold_ranges.push(fold_range);
7812 if row <= range.start.row {
7813 break;
7814 }
7815 }
7816 }
7817 }
7818 }
7819
7820 self.fold_ranges(fold_ranges, true, cx);
7821 }
7822
7823 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7824 let buffer_row = fold_at.buffer_row;
7825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7826
7827 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7828 let autoscroll = self
7829 .selections
7830 .all::<Point>(cx)
7831 .iter()
7832 .any(|selection| fold_range.overlaps(&selection.range()));
7833
7834 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7835 }
7836 }
7837
7838 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7839 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7840 let buffer = &display_map.buffer_snapshot;
7841 let selections = self.selections.all::<Point>(cx);
7842 let ranges = selections
7843 .iter()
7844 .map(|s| {
7845 let range = s.display_range(&display_map).sorted();
7846 let mut start = range.start.to_point(&display_map);
7847 let mut end = range.end.to_point(&display_map);
7848 start.column = 0;
7849 end.column = buffer.line_len(end.row);
7850 start..end
7851 })
7852 .collect::<Vec<_>>();
7853
7854 self.unfold_ranges(ranges, true, true, cx);
7855 }
7856
7857 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7858 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7859
7860 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7861 ..Point::new(
7862 unfold_at.buffer_row,
7863 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7864 );
7865
7866 let autoscroll = self
7867 .selections
7868 .all::<Point>(cx)
7869 .iter()
7870 .any(|selection| selection.range().overlaps(&intersection_range));
7871
7872 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
7873 }
7874
7875 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
7876 let selections = self.selections.all::<Point>(cx);
7877 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7878 let line_mode = self.selections.line_mode;
7879 let ranges = selections.into_iter().map(|s| {
7880 if line_mode {
7881 let start = Point::new(s.start.row, 0);
7882 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
7883 start..end
7884 } else {
7885 s.start..s.end
7886 }
7887 });
7888 self.fold_ranges(ranges, true, cx);
7889 }
7890
7891 pub fn fold_ranges<T: ToOffset + Clone>(
7892 &mut self,
7893 ranges: impl IntoIterator<Item = Range<T>>,
7894 auto_scroll: bool,
7895 cx: &mut ViewContext<Self>,
7896 ) {
7897 let mut ranges = ranges.into_iter().peekable();
7898 if ranges.peek().is_some() {
7899 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
7900
7901 if auto_scroll {
7902 self.request_autoscroll(Autoscroll::fit(), cx);
7903 }
7904
7905 cx.notify();
7906 }
7907 }
7908
7909 pub fn unfold_ranges<T: ToOffset + Clone>(
7910 &mut self,
7911 ranges: impl IntoIterator<Item = Range<T>>,
7912 inclusive: bool,
7913 auto_scroll: bool,
7914 cx: &mut ViewContext<Self>,
7915 ) {
7916 let mut ranges = ranges.into_iter().peekable();
7917 if ranges.peek().is_some() {
7918 self.display_map
7919 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
7920 if auto_scroll {
7921 self.request_autoscroll(Autoscroll::fit(), cx);
7922 }
7923
7924 cx.notify();
7925 }
7926 }
7927
7928 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
7929 if hovered != self.gutter_hovered {
7930 self.gutter_hovered = hovered;
7931 cx.notify();
7932 }
7933 }
7934
7935 pub fn insert_blocks(
7936 &mut self,
7937 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
7938 autoscroll: Option<Autoscroll>,
7939 cx: &mut ViewContext<Self>,
7940 ) -> Vec<BlockId> {
7941 let blocks = self
7942 .display_map
7943 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
7944 if let Some(autoscroll) = autoscroll {
7945 self.request_autoscroll(autoscroll, cx);
7946 }
7947 blocks
7948 }
7949
7950 pub fn replace_blocks(
7951 &mut self,
7952 blocks: HashMap<BlockId, RenderBlock>,
7953 autoscroll: Option<Autoscroll>,
7954 cx: &mut ViewContext<Self>,
7955 ) {
7956 self.display_map
7957 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
7958 if let Some(autoscroll) = autoscroll {
7959 self.request_autoscroll(autoscroll, cx);
7960 }
7961 }
7962
7963 pub fn remove_blocks(
7964 &mut self,
7965 block_ids: HashSet<BlockId>,
7966 autoscroll: Option<Autoscroll>,
7967 cx: &mut ViewContext<Self>,
7968 ) {
7969 self.display_map.update(cx, |display_map, cx| {
7970 display_map.remove_blocks(block_ids, cx)
7971 });
7972 if let Some(autoscroll) = autoscroll {
7973 self.request_autoscroll(autoscroll, cx);
7974 }
7975 }
7976
7977 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
7978 self.display_map
7979 .update(cx, |map, cx| map.snapshot(cx))
7980 .longest_row()
7981 }
7982
7983 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
7984 self.display_map
7985 .update(cx, |map, cx| map.snapshot(cx))
7986 .max_point()
7987 }
7988
7989 pub fn text(&self, cx: &AppContext) -> String {
7990 self.buffer.read(cx).read(cx).text()
7991 }
7992
7993 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
7994 let text = self.text(cx);
7995 let text = text.trim();
7996
7997 if text.is_empty() {
7998 return None;
7999 }
8000
8001 Some(text.to_string())
8002 }
8003
8004 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8005 self.transact(cx, |this, cx| {
8006 this.buffer
8007 .read(cx)
8008 .as_singleton()
8009 .expect("you can only call set_text on editors for singleton buffers")
8010 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8011 });
8012 }
8013
8014 pub fn display_text(&self, cx: &mut AppContext) -> String {
8015 self.display_map
8016 .update(cx, |map, cx| map.snapshot(cx))
8017 .text()
8018 }
8019
8020 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8021 let mut wrap_guides = smallvec::smallvec![];
8022
8023 if self.show_wrap_guides == Some(false) {
8024 return wrap_guides;
8025 }
8026
8027 let settings = self.buffer.read(cx).settings_at(0, cx);
8028 if settings.show_wrap_guides {
8029 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8030 wrap_guides.push((soft_wrap as usize, true));
8031 }
8032 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8033 }
8034
8035 wrap_guides
8036 }
8037
8038 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8039 let settings = self.buffer.read(cx).settings_at(0, cx);
8040 let mode = self
8041 .soft_wrap_mode_override
8042 .unwrap_or_else(|| settings.soft_wrap);
8043 match mode {
8044 language_settings::SoftWrap::None => SoftWrap::None,
8045 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8046 language_settings::SoftWrap::PreferredLineLength => {
8047 SoftWrap::Column(settings.preferred_line_length)
8048 }
8049 }
8050 }
8051
8052 pub fn set_soft_wrap_mode(
8053 &mut self,
8054 mode: language_settings::SoftWrap,
8055 cx: &mut ViewContext<Self>,
8056 ) {
8057 self.soft_wrap_mode_override = Some(mode);
8058 cx.notify();
8059 }
8060
8061 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8062 let rem_size = cx.rem_size();
8063 self.display_map.update(cx, |map, cx| {
8064 map.set_font(
8065 style.text.font(),
8066 style.text.font_size.to_pixels(rem_size),
8067 cx,
8068 )
8069 });
8070 self.style = Some(style);
8071 }
8072
8073 #[cfg(any(test, feature = "test-support"))]
8074 pub fn style(&self) -> Option<&EditorStyle> {
8075 self.style.as_ref()
8076 }
8077
8078 // Called by the element. This method is not designed to be called outside of the editor
8079 // element's layout code because it does not notify when rewrapping is computed synchronously.
8080 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8081 self.display_map
8082 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8083 }
8084
8085 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8086 if self.soft_wrap_mode_override.is_some() {
8087 self.soft_wrap_mode_override.take();
8088 } else {
8089 let soft_wrap = match self.soft_wrap_mode(cx) {
8090 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8091 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8092 };
8093 self.soft_wrap_mode_override = Some(soft_wrap);
8094 }
8095 cx.notify();
8096 }
8097
8098 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8099 self.show_gutter = show_gutter;
8100 cx.notify();
8101 }
8102
8103 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8104 self.show_wrap_guides = Some(show_gutter);
8105 cx.notify();
8106 }
8107
8108 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8109 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8110 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8111 cx.reveal_path(&file.abs_path(cx));
8112 }
8113 }
8114 }
8115
8116 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8117 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8118 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8119 if let Some(path) = file.abs_path(cx).to_str() {
8120 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8121 }
8122 }
8123 }
8124 }
8125
8126 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8127 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8128 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8129 if let Some(path) = file.path().to_str() {
8130 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8131 }
8132 }
8133 }
8134 }
8135
8136 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8137 self.highlighted_rows = rows;
8138 }
8139
8140 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8141 self.highlighted_rows.clone()
8142 }
8143
8144 pub fn highlight_background<T: 'static>(
8145 &mut self,
8146 ranges: Vec<Range<Anchor>>,
8147 color_fetcher: fn(&ThemeColors) -> Hsla,
8148 cx: &mut ViewContext<Self>,
8149 ) {
8150 self.background_highlights
8151 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8152 cx.notify();
8153 }
8154
8155 pub(crate) fn highlight_inlay_background<T: 'static>(
8156 &mut self,
8157 ranges: Vec<InlayHighlight>,
8158 color_fetcher: fn(&ThemeColors) -> Hsla,
8159 cx: &mut ViewContext<Self>,
8160 ) {
8161 // TODO: no actual highlights happen for inlays currently, find a way to do that
8162 self.inlay_background_highlights
8163 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8164 cx.notify();
8165 }
8166
8167 pub fn clear_background_highlights<T: 'static>(
8168 &mut self,
8169 cx: &mut ViewContext<Self>,
8170 ) -> Option<BackgroundHighlight> {
8171 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8172 let inlay_highlights = self
8173 .inlay_background_highlights
8174 .remove(&Some(TypeId::of::<T>()));
8175 if text_highlights.is_some() || inlay_highlights.is_some() {
8176 cx.notify();
8177 }
8178 text_highlights
8179 }
8180
8181 #[cfg(feature = "test-support")]
8182 pub fn all_text_background_highlights(
8183 &mut self,
8184 cx: &mut ViewContext<Self>,
8185 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8186 let snapshot = self.snapshot(cx);
8187 let buffer = &snapshot.buffer_snapshot;
8188 let start = buffer.anchor_before(0);
8189 let end = buffer.anchor_after(buffer.len());
8190 let theme = cx.theme().colors();
8191 self.background_highlights_in_range(start..end, &snapshot, theme)
8192 }
8193
8194 fn document_highlights_for_position<'a>(
8195 &'a self,
8196 position: Anchor,
8197 buffer: &'a MultiBufferSnapshot,
8198 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8199 let read_highlights = self
8200 .background_highlights
8201 .get(&TypeId::of::<DocumentHighlightRead>())
8202 .map(|h| &h.1);
8203 let write_highlights = self
8204 .background_highlights
8205 .get(&TypeId::of::<DocumentHighlightWrite>())
8206 .map(|h| &h.1);
8207 let left_position = position.bias_left(buffer);
8208 let right_position = position.bias_right(buffer);
8209 read_highlights
8210 .into_iter()
8211 .chain(write_highlights)
8212 .flat_map(move |ranges| {
8213 let start_ix = match ranges.binary_search_by(|probe| {
8214 let cmp = probe.end.cmp(&left_position, buffer);
8215 if cmp.is_ge() {
8216 Ordering::Greater
8217 } else {
8218 Ordering::Less
8219 }
8220 }) {
8221 Ok(i) | Err(i) => i,
8222 };
8223
8224 let right_position = right_position.clone();
8225 ranges[start_ix..]
8226 .iter()
8227 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8228 })
8229 }
8230
8231 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8232 self.background_highlights
8233 .get(&TypeId::of::<T>())
8234 .map_or(false, |(_, highlights)| !highlights.is_empty())
8235 }
8236
8237 pub fn background_highlights_in_range(
8238 &self,
8239 search_range: Range<Anchor>,
8240 display_snapshot: &DisplaySnapshot,
8241 theme: &ThemeColors,
8242 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8243 let mut results = Vec::new();
8244 for (color_fetcher, ranges) in self.background_highlights.values() {
8245 let color = color_fetcher(theme);
8246 let start_ix = match ranges.binary_search_by(|probe| {
8247 let cmp = probe
8248 .end
8249 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8250 if cmp.is_gt() {
8251 Ordering::Greater
8252 } else {
8253 Ordering::Less
8254 }
8255 }) {
8256 Ok(i) | Err(i) => i,
8257 };
8258 for range in &ranges[start_ix..] {
8259 if range
8260 .start
8261 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8262 .is_ge()
8263 {
8264 break;
8265 }
8266
8267 let start = range.start.to_display_point(&display_snapshot);
8268 let end = range.end.to_display_point(&display_snapshot);
8269 results.push((start..end, color))
8270 }
8271 }
8272 results
8273 }
8274
8275 pub fn background_highlight_row_ranges<T: 'static>(
8276 &self,
8277 search_range: Range<Anchor>,
8278 display_snapshot: &DisplaySnapshot,
8279 count: usize,
8280 ) -> Vec<RangeInclusive<DisplayPoint>> {
8281 let mut results = Vec::new();
8282 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8283 return vec![];
8284 };
8285
8286 let start_ix = match ranges.binary_search_by(|probe| {
8287 let cmp = probe
8288 .end
8289 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8290 if cmp.is_gt() {
8291 Ordering::Greater
8292 } else {
8293 Ordering::Less
8294 }
8295 }) {
8296 Ok(i) | Err(i) => i,
8297 };
8298 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8299 if let (Some(start_display), Some(end_display)) = (start, end) {
8300 results.push(
8301 start_display.to_display_point(display_snapshot)
8302 ..=end_display.to_display_point(display_snapshot),
8303 );
8304 }
8305 };
8306 let mut start_row: Option<Point> = None;
8307 let mut end_row: Option<Point> = None;
8308 if ranges.len() > count {
8309 return Vec::new();
8310 }
8311 for range in &ranges[start_ix..] {
8312 if range
8313 .start
8314 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8315 .is_ge()
8316 {
8317 break;
8318 }
8319 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8320 if let Some(current_row) = &end_row {
8321 if end.row == current_row.row {
8322 continue;
8323 }
8324 }
8325 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8326 if start_row.is_none() {
8327 assert_eq!(end_row, None);
8328 start_row = Some(start);
8329 end_row = Some(end);
8330 continue;
8331 }
8332 if let Some(current_end) = end_row.as_mut() {
8333 if start.row > current_end.row + 1 {
8334 push_region(start_row, end_row);
8335 start_row = Some(start);
8336 end_row = Some(end);
8337 } else {
8338 // Merge two hunks.
8339 *current_end = end;
8340 }
8341 } else {
8342 unreachable!();
8343 }
8344 }
8345 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8346 push_region(start_row, end_row);
8347 results
8348 }
8349
8350 pub fn highlight_text<T: 'static>(
8351 &mut self,
8352 ranges: Vec<Range<Anchor>>,
8353 style: HighlightStyle,
8354 cx: &mut ViewContext<Self>,
8355 ) {
8356 self.display_map.update(cx, |map, _| {
8357 map.highlight_text(TypeId::of::<T>(), ranges, style)
8358 });
8359 cx.notify();
8360 }
8361
8362 pub(crate) fn highlight_inlays<T: 'static>(
8363 &mut self,
8364 highlights: Vec<InlayHighlight>,
8365 style: HighlightStyle,
8366 cx: &mut ViewContext<Self>,
8367 ) {
8368 self.display_map.update(cx, |map, _| {
8369 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8370 });
8371 cx.notify();
8372 }
8373
8374 pub fn text_highlights<'a, T: 'static>(
8375 &'a self,
8376 cx: &'a AppContext,
8377 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8378 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8379 }
8380
8381 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8382 let cleared = self
8383 .display_map
8384 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8385 if cleared {
8386 cx.notify();
8387 }
8388 }
8389
8390 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8391 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8392 && self.focus_handle.is_focused(cx)
8393 }
8394
8395 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8396 cx.notify();
8397 }
8398
8399 fn on_buffer_event(
8400 &mut self,
8401 multibuffer: Model<MultiBuffer>,
8402 event: &multi_buffer::Event,
8403 cx: &mut ViewContext<Self>,
8404 ) {
8405 match event {
8406 multi_buffer::Event::Edited {
8407 singleton_buffer_edited,
8408 } => {
8409 self.refresh_active_diagnostics(cx);
8410 self.refresh_code_actions(cx);
8411 if self.has_active_copilot_suggestion(cx) {
8412 self.update_visible_copilot_suggestion(cx);
8413 }
8414 cx.emit(EditorEvent::BufferEdited);
8415 cx.emit(SearchEvent::MatchesInvalidated);
8416
8417 if *singleton_buffer_edited {
8418 if let Some(project) = &self.project {
8419 let project = project.read(cx);
8420 let languages_affected = multibuffer
8421 .read(cx)
8422 .all_buffers()
8423 .into_iter()
8424 .filter_map(|buffer| {
8425 let buffer = buffer.read(cx);
8426 let language = buffer.language()?;
8427 if project.is_local()
8428 && project.language_servers_for_buffer(buffer, cx).count() == 0
8429 {
8430 None
8431 } else {
8432 Some(language)
8433 }
8434 })
8435 .cloned()
8436 .collect::<HashSet<_>>();
8437 if !languages_affected.is_empty() {
8438 self.refresh_inlay_hints(
8439 InlayHintRefreshReason::BufferEdited(languages_affected),
8440 cx,
8441 );
8442 }
8443 }
8444 }
8445
8446 let Some(project) = &self.project else { return };
8447 let telemetry = project.read(cx).client().telemetry().clone();
8448 telemetry.log_edit_event("editor");
8449 }
8450 multi_buffer::Event::ExcerptsAdded {
8451 buffer,
8452 predecessor,
8453 excerpts,
8454 } => {
8455 cx.emit(EditorEvent::ExcerptsAdded {
8456 buffer: buffer.clone(),
8457 predecessor: *predecessor,
8458 excerpts: excerpts.clone(),
8459 });
8460 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8461 }
8462 multi_buffer::Event::ExcerptsRemoved { ids } => {
8463 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8464 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8465 }
8466 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8467 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8468 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8469 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8470 cx.emit(EditorEvent::TitleChanged)
8471 }
8472 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8473 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8474 multi_buffer::Event::DiagnosticsUpdated => {
8475 self.refresh_active_diagnostics(cx);
8476 }
8477 _ => {}
8478 };
8479 }
8480
8481 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8482 cx.notify();
8483 }
8484
8485 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8486 self.refresh_copilot_suggestions(true, cx);
8487 self.refresh_inlay_hints(
8488 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8489 self.selections.newest_anchor().head(),
8490 &self.buffer.read(cx).snapshot(cx),
8491 cx,
8492 )),
8493 cx,
8494 );
8495 cx.notify();
8496 }
8497
8498 pub fn set_searchable(&mut self, searchable: bool) {
8499 self.searchable = searchable;
8500 }
8501
8502 pub fn searchable(&self) -> bool {
8503 self.searchable
8504 }
8505
8506 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8507 let buffer = self.buffer.read(cx);
8508 if buffer.is_singleton() {
8509 cx.propagate();
8510 return;
8511 }
8512
8513 let Some(workspace) = self.workspace() else {
8514 cx.propagate();
8515 return;
8516 };
8517
8518 let mut new_selections_by_buffer = HashMap::default();
8519 for selection in self.selections.all::<usize>(cx) {
8520 for (buffer, mut range, _) in
8521 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8522 {
8523 if selection.reversed {
8524 mem::swap(&mut range.start, &mut range.end);
8525 }
8526 new_selections_by_buffer
8527 .entry(buffer)
8528 .or_insert(Vec::new())
8529 .push(range)
8530 }
8531 }
8532
8533 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8534
8535 // We defer the pane interaction because we ourselves are a workspace item
8536 // and activating a new item causes the pane to call a method on us reentrantly,
8537 // which panics if we're on the stack.
8538 cx.window_context().defer(move |cx| {
8539 workspace.update(cx, |workspace, cx| {
8540 let pane = workspace.active_pane().clone();
8541 pane.update(cx, |pane, _| pane.disable_history());
8542
8543 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8544 let editor = workspace.open_project_item::<Self>(buffer, cx);
8545 editor.update(cx, |editor, cx| {
8546 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8547 s.select_ranges(ranges);
8548 });
8549 });
8550 }
8551
8552 pane.update(cx, |pane, _| pane.enable_history());
8553 })
8554 });
8555 }
8556
8557 fn jump(
8558 &mut self,
8559 path: ProjectPath,
8560 position: Point,
8561 anchor: language::Anchor,
8562 cx: &mut ViewContext<Self>,
8563 ) {
8564 let workspace = self.workspace();
8565 cx.spawn(|_, mut cx| async move {
8566 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8567 let editor = workspace.update(&mut cx, |workspace, cx| {
8568 workspace.open_path(path, None, true, cx)
8569 })?;
8570 let editor = editor
8571 .await?
8572 .downcast::<Editor>()
8573 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8574 .downgrade();
8575 editor.update(&mut cx, |editor, cx| {
8576 let buffer = editor
8577 .buffer()
8578 .read(cx)
8579 .as_singleton()
8580 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8581 let buffer = buffer.read(cx);
8582 let cursor = if buffer.can_resolve(&anchor) {
8583 language::ToPoint::to_point(&anchor, buffer)
8584 } else {
8585 buffer.clip_point(position, Bias::Left)
8586 };
8587
8588 let nav_history = editor.nav_history.take();
8589 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8590 s.select_ranges([cursor..cursor]);
8591 });
8592 editor.nav_history = nav_history;
8593
8594 anyhow::Ok(())
8595 })??;
8596
8597 anyhow::Ok(())
8598 })
8599 .detach_and_log_err(cx);
8600 }
8601
8602 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8603 let snapshot = self.buffer.read(cx).read(cx);
8604 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8605 Some(
8606 ranges
8607 .iter()
8608 .map(move |range| {
8609 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8610 })
8611 .collect(),
8612 )
8613 }
8614
8615 fn selection_replacement_ranges(
8616 &self,
8617 range: Range<OffsetUtf16>,
8618 cx: &AppContext,
8619 ) -> Vec<Range<OffsetUtf16>> {
8620 let selections = self.selections.all::<OffsetUtf16>(cx);
8621 let newest_selection = selections
8622 .iter()
8623 .max_by_key(|selection| selection.id)
8624 .unwrap();
8625 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8626 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8627 let snapshot = self.buffer.read(cx).read(cx);
8628 selections
8629 .into_iter()
8630 .map(|mut selection| {
8631 selection.start.0 =
8632 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8633 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8634 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8635 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8636 })
8637 .collect()
8638 }
8639
8640 fn report_copilot_event(
8641 &self,
8642 suggestion_id: Option<String>,
8643 suggestion_accepted: bool,
8644 cx: &AppContext,
8645 ) {
8646 let Some(project) = &self.project else { return };
8647
8648 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8649 let file_extension = self
8650 .buffer
8651 .read(cx)
8652 .as_singleton()
8653 .and_then(|b| b.read(cx).file())
8654 .and_then(|file| Path::new(file.file_name(cx)).extension())
8655 .and_then(|e| e.to_str())
8656 .map(|a| a.to_string());
8657
8658 let telemetry = project.read(cx).client().telemetry().clone();
8659
8660 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8661 }
8662
8663 #[cfg(any(test, feature = "test-support"))]
8664 fn report_editor_event(
8665 &self,
8666 _operation: &'static str,
8667 _file_extension: Option<String>,
8668 _cx: &AppContext,
8669 ) {
8670 }
8671
8672 #[cfg(not(any(test, feature = "test-support")))]
8673 fn report_editor_event(
8674 &self,
8675 operation: &'static str,
8676 file_extension: Option<String>,
8677 cx: &AppContext,
8678 ) {
8679 let Some(project) = &self.project else { return };
8680
8681 // If None, we are in a file without an extension
8682 let file = self
8683 .buffer
8684 .read(cx)
8685 .as_singleton()
8686 .and_then(|b| b.read(cx).file());
8687 let file_extension = file_extension.or(file
8688 .as_ref()
8689 .and_then(|file| Path::new(file.file_name(cx)).extension())
8690 .and_then(|e| e.to_str())
8691 .map(|a| a.to_string()));
8692
8693 let vim_mode = cx
8694 .global::<SettingsStore>()
8695 .raw_user_settings()
8696 .get("vim_mode")
8697 == Some(&serde_json::Value::Bool(true));
8698 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8699 let copilot_enabled_for_language = self
8700 .buffer
8701 .read(cx)
8702 .settings_at(0, cx)
8703 .show_copilot_suggestions;
8704
8705 let telemetry = project.read(cx).client().telemetry().clone();
8706 telemetry.report_editor_event(
8707 file_extension,
8708 vim_mode,
8709 operation,
8710 copilot_enabled,
8711 copilot_enabled_for_language,
8712 )
8713 }
8714
8715 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8716 /// with each line being an array of {text, highlight} objects.
8717 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8718 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8719 return;
8720 };
8721
8722 #[derive(Serialize)]
8723 struct Chunk<'a> {
8724 text: String,
8725 highlight: Option<&'a str>,
8726 }
8727
8728 let snapshot = buffer.read(cx).snapshot();
8729 let range = self
8730 .selected_text_range(cx)
8731 .and_then(|selected_range| {
8732 if selected_range.is_empty() {
8733 None
8734 } else {
8735 Some(selected_range)
8736 }
8737 })
8738 .unwrap_or_else(|| 0..snapshot.len());
8739
8740 let chunks = snapshot.chunks(range, true);
8741 let mut lines = Vec::new();
8742 let mut line: VecDeque<Chunk> = VecDeque::new();
8743
8744 let Some(style) = self.style.as_ref() else {
8745 return;
8746 };
8747
8748 for chunk in chunks {
8749 let highlight = chunk
8750 .syntax_highlight_id
8751 .and_then(|id| id.name(&style.syntax));
8752 let mut chunk_lines = chunk.text.split("\n").peekable();
8753 while let Some(text) = chunk_lines.next() {
8754 let mut merged_with_last_token = false;
8755 if let Some(last_token) = line.back_mut() {
8756 if last_token.highlight == highlight {
8757 last_token.text.push_str(text);
8758 merged_with_last_token = true;
8759 }
8760 }
8761
8762 if !merged_with_last_token {
8763 line.push_back(Chunk {
8764 text: text.into(),
8765 highlight,
8766 });
8767 }
8768
8769 if chunk_lines.peek().is_some() {
8770 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8771 line.pop_front();
8772 }
8773 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8774 line.pop_back();
8775 }
8776
8777 lines.push(mem::take(&mut line));
8778 }
8779 }
8780 }
8781
8782 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8783 return;
8784 };
8785 cx.write_to_clipboard(ClipboardItem::new(lines));
8786 }
8787
8788 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8789 &self.inlay_hint_cache
8790 }
8791
8792 pub fn replay_insert_event(
8793 &mut self,
8794 text: &str,
8795 relative_utf16_range: Option<Range<isize>>,
8796 cx: &mut ViewContext<Self>,
8797 ) {
8798 if !self.input_enabled {
8799 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8800 return;
8801 }
8802 if let Some(relative_utf16_range) = relative_utf16_range {
8803 let selections = self.selections.all::<OffsetUtf16>(cx);
8804 self.change_selections(None, cx, |s| {
8805 let new_ranges = selections.into_iter().map(|range| {
8806 let start = OffsetUtf16(
8807 range
8808 .head()
8809 .0
8810 .saturating_add_signed(relative_utf16_range.start),
8811 );
8812 let end = OffsetUtf16(
8813 range
8814 .head()
8815 .0
8816 .saturating_add_signed(relative_utf16_range.end),
8817 );
8818 start..end
8819 });
8820 s.select_ranges(new_ranges);
8821 });
8822 }
8823
8824 self.handle_input(text, cx);
8825 }
8826
8827 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8828 let Some(project) = self.project.as_ref() else {
8829 return false;
8830 };
8831 let project = project.read(cx);
8832
8833 let mut supports = false;
8834 self.buffer().read(cx).for_each_buffer(|buffer| {
8835 if !supports {
8836 supports = project
8837 .language_servers_for_buffer(buffer.read(cx), cx)
8838 .any(
8839 |(_, server)| match server.capabilities().inlay_hint_provider {
8840 Some(lsp::OneOf::Left(enabled)) => enabled,
8841 Some(lsp::OneOf::Right(_)) => true,
8842 None => false,
8843 },
8844 )
8845 }
8846 });
8847 supports
8848 }
8849
8850 pub fn focus(&self, cx: &mut WindowContext) {
8851 cx.focus(&self.focus_handle)
8852 }
8853
8854 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8855 self.focus_handle.is_focused(cx)
8856 }
8857
8858 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8859 cx.emit(EditorEvent::Focused);
8860
8861 if let Some(rename) = self.pending_rename.as_ref() {
8862 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8863 cx.focus(&rename_editor_focus_handle);
8864 } else {
8865 self.blink_manager.update(cx, BlinkManager::enable);
8866 self.show_cursor_names(cx);
8867 self.buffer.update(cx, |buffer, cx| {
8868 buffer.finalize_last_transaction(cx);
8869 if self.leader_peer_id.is_none() {
8870 buffer.set_active_selections(
8871 &self.selections.disjoint_anchors(),
8872 self.selections.line_mode,
8873 self.cursor_shape,
8874 cx,
8875 );
8876 }
8877 });
8878 }
8879 }
8880
8881 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
8882 self.blink_manager.update(cx, BlinkManager::disable);
8883 self.buffer
8884 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
8885 self.hide_context_menu(cx);
8886 hide_hover(self, cx);
8887 cx.emit(EditorEvent::Blurred);
8888 cx.notify();
8889 }
8890
8891 pub fn register_action<A: Action>(
8892 &mut self,
8893 listener: impl Fn(&A, &mut WindowContext) + 'static,
8894 ) -> &mut Self {
8895 let listener = Arc::new(listener);
8896
8897 self.editor_actions.push(Box::new(move |cx| {
8898 let _view = cx.view().clone();
8899 let cx = cx.window_context();
8900 let listener = listener.clone();
8901 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
8902 let action = action.downcast_ref().unwrap();
8903 if phase == DispatchPhase::Bubble {
8904 listener(action, cx)
8905 }
8906 })
8907 }));
8908 self
8909 }
8910}
8911
8912pub trait CollaborationHub {
8913 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
8914 fn user_participant_indices<'a>(
8915 &self,
8916 cx: &'a AppContext,
8917 ) -> &'a HashMap<u64, ParticipantIndex>;
8918 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
8919}
8920
8921impl CollaborationHub for Model<Project> {
8922 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
8923 self.read(cx).collaborators()
8924 }
8925
8926 fn user_participant_indices<'a>(
8927 &self,
8928 cx: &'a AppContext,
8929 ) -> &'a HashMap<u64, ParticipantIndex> {
8930 self.read(cx).user_store().read(cx).participant_indices()
8931 }
8932
8933 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
8934 let this = self.read(cx);
8935 let user_ids = this.collaborators().values().map(|c| c.user_id);
8936 this.user_store().read_with(cx, |user_store, cx| {
8937 user_store.participant_names(user_ids, cx)
8938 })
8939 }
8940}
8941
8942pub trait CompletionProvider {
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
8950 fn resolve_completions(
8951 &self,
8952 completion_indices: Vec<usize>,
8953 completions: Arc<RwLock<Box<[Completion]>>>,
8954 cx: &mut ViewContext<Editor>,
8955 ) -> Task<Result<bool>>;
8956
8957 fn apply_additional_edits_for_completion(
8958 &self,
8959 buffer: Model<Buffer>,
8960 completion: Completion,
8961 push_to_history: bool,
8962 cx: &mut ViewContext<Editor>,
8963 ) -> Task<Result<Option<language::Transaction>>>;
8964}
8965
8966impl CompletionProvider for Model<Project> {
8967 fn completions(
8968 &self,
8969 buffer: &Model<Buffer>,
8970 buffer_position: text::Anchor,
8971 cx: &mut ViewContext<Editor>,
8972 ) -> Task<Result<Vec<Completion>>> {
8973 self.update(cx, |project, cx| {
8974 project.completions(&buffer, buffer_position, cx)
8975 })
8976 }
8977
8978 fn resolve_completions(
8979 &self,
8980 completion_indices: Vec<usize>,
8981 completions: Arc<RwLock<Box<[Completion]>>>,
8982 cx: &mut ViewContext<Editor>,
8983 ) -> Task<Result<bool>> {
8984 self.update(cx, |project, cx| {
8985 project.resolve_completions(completion_indices, completions, cx)
8986 })
8987 }
8988
8989 fn apply_additional_edits_for_completion(
8990 &self,
8991 buffer: Model<Buffer>,
8992 completion: Completion,
8993 push_to_history: bool,
8994 cx: &mut ViewContext<Editor>,
8995 ) -> Task<Result<Option<language::Transaction>>> {
8996 self.update(cx, |project, cx| {
8997 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
8998 })
8999 }
9000}
9001
9002fn inlay_hint_settings(
9003 location: Anchor,
9004 snapshot: &MultiBufferSnapshot,
9005 cx: &mut ViewContext<'_, Editor>,
9006) -> InlayHintSettings {
9007 let file = snapshot.file_at(location);
9008 let language = snapshot.language_at(location);
9009 let settings = all_language_settings(file, cx);
9010 settings
9011 .language(language.map(|l| l.name()).as_deref())
9012 .inlay_hints
9013}
9014
9015fn consume_contiguous_rows(
9016 contiguous_row_selections: &mut Vec<Selection<Point>>,
9017 selection: &Selection<Point>,
9018 display_map: &DisplaySnapshot,
9019 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9020) -> (u32, u32) {
9021 contiguous_row_selections.push(selection.clone());
9022 let start_row = selection.start.row;
9023 let mut end_row = ending_row(selection, display_map);
9024
9025 while let Some(next_selection) = selections.peek() {
9026 if next_selection.start.row <= end_row {
9027 end_row = ending_row(next_selection, display_map);
9028 contiguous_row_selections.push(selections.next().unwrap().clone());
9029 } else {
9030 break;
9031 }
9032 }
9033 (start_row, end_row)
9034}
9035
9036fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9037 if next_selection.end.column > 0 || next_selection.is_empty() {
9038 display_map.next_line_boundary(next_selection.end).0.row + 1
9039 } else {
9040 next_selection.end.row
9041 }
9042}
9043
9044impl EditorSnapshot {
9045 pub fn remote_selections_in_range<'a>(
9046 &'a self,
9047 range: &'a Range<Anchor>,
9048 collaboration_hub: &dyn CollaborationHub,
9049 cx: &'a AppContext,
9050 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9051 let participant_names = collaboration_hub.user_names(cx);
9052 let participant_indices = collaboration_hub.user_participant_indices(cx);
9053 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9054 let collaborators_by_replica_id = collaborators_by_peer_id
9055 .iter()
9056 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9057 .collect::<HashMap<_, _>>();
9058 self.buffer_snapshot
9059 .remote_selections_in_range(range)
9060 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9061 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9062 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9063 let user_name = participant_names.get(&collaborator.user_id).cloned();
9064 Some(RemoteSelection {
9065 replica_id,
9066 selection,
9067 cursor_shape,
9068 line_mode,
9069 participant_index,
9070 peer_id: collaborator.peer_id,
9071 user_name,
9072 })
9073 })
9074 }
9075
9076 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9077 self.display_snapshot.buffer_snapshot.language_at(position)
9078 }
9079
9080 pub fn is_focused(&self) -> bool {
9081 self.is_focused
9082 }
9083
9084 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9085 self.placeholder_text.as_ref()
9086 }
9087
9088 pub fn scroll_position(&self) -> gpui::Point<f32> {
9089 self.scroll_anchor.scroll_position(&self.display_snapshot)
9090 }
9091
9092 pub fn gutter_dimensions(
9093 &self,
9094 font_id: FontId,
9095 font_size: Pixels,
9096 em_width: Pixels,
9097 max_line_number_width: Pixels,
9098 cx: &AppContext,
9099 ) -> GutterDimensions {
9100 if self.show_gutter {
9101 let descent = cx.text_system().descent(font_id, font_size);
9102 let gutter_padding_factor = 4.0;
9103 let gutter_padding = (em_width * gutter_padding_factor).round();
9104 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9105 let min_width_for_number_on_gutter = em_width * 4.0;
9106 let gutter_width =
9107 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9108 let gutter_margin = -descent;
9109
9110 GutterDimensions {
9111 padding: gutter_padding,
9112 width: gutter_width,
9113 margin: gutter_margin,
9114 }
9115 } else {
9116 GutterDimensions::default()
9117 }
9118 }
9119}
9120
9121impl Deref for EditorSnapshot {
9122 type Target = DisplaySnapshot;
9123
9124 fn deref(&self) -> &Self::Target {
9125 &self.display_snapshot
9126 }
9127}
9128
9129#[derive(Clone, Debug, PartialEq, Eq)]
9130pub enum EditorEvent {
9131 InputIgnored {
9132 text: Arc<str>,
9133 },
9134 InputHandled {
9135 utf16_range_to_replace: Option<Range<isize>>,
9136 text: Arc<str>,
9137 },
9138 ExcerptsAdded {
9139 buffer: Model<Buffer>,
9140 predecessor: ExcerptId,
9141 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9142 },
9143 ExcerptsRemoved {
9144 ids: Vec<ExcerptId>,
9145 },
9146 BufferEdited,
9147 Edited,
9148 Reparsed,
9149 Focused,
9150 Blurred,
9151 DirtyChanged,
9152 Saved,
9153 TitleChanged,
9154 DiffBaseChanged,
9155 SelectionsChanged {
9156 local: bool,
9157 },
9158 ScrollPositionChanged {
9159 local: bool,
9160 autoscroll: bool,
9161 },
9162 Closed,
9163}
9164
9165impl EventEmitter<EditorEvent> for Editor {}
9166
9167impl FocusableView for Editor {
9168 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9169 self.focus_handle.clone()
9170 }
9171}
9172
9173impl Render for Editor {
9174 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9175 let settings = ThemeSettings::get_global(cx);
9176 let text_style = match self.mode {
9177 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9178 color: cx.theme().colors().editor_foreground,
9179 font_family: settings.ui_font.family.clone(),
9180 font_features: settings.ui_font.features,
9181 font_size: rems(0.875).into(),
9182 font_weight: FontWeight::NORMAL,
9183 font_style: FontStyle::Normal,
9184 line_height: relative(settings.buffer_line_height.value()),
9185 background_color: None,
9186 underline: None,
9187 white_space: WhiteSpace::Normal,
9188 },
9189
9190 EditorMode::Full => TextStyle {
9191 color: cx.theme().colors().editor_foreground,
9192 font_family: settings.buffer_font.family.clone(),
9193 font_features: settings.buffer_font.features,
9194 font_size: settings.buffer_font_size(cx).into(),
9195 font_weight: FontWeight::NORMAL,
9196 font_style: FontStyle::Normal,
9197 line_height: relative(settings.buffer_line_height.value()),
9198 background_color: None,
9199 underline: None,
9200 white_space: WhiteSpace::Normal,
9201 },
9202 };
9203
9204 let background = match self.mode {
9205 EditorMode::SingleLine => cx.theme().system().transparent,
9206 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9207 EditorMode::Full => cx.theme().colors().editor_background,
9208 };
9209
9210 EditorElement::new(
9211 cx.view(),
9212 EditorStyle {
9213 background,
9214 local_player: cx.theme().players().local(),
9215 text: text_style,
9216 scrollbar_width: px(12.),
9217 syntax: cx.theme().syntax().clone(),
9218 status: cx.theme().status().clone(),
9219 inlays_style: HighlightStyle {
9220 color: Some(cx.theme().status().hint),
9221 font_weight: Some(FontWeight::BOLD),
9222 ..HighlightStyle::default()
9223 },
9224 suggestions_style: HighlightStyle {
9225 color: Some(cx.theme().status().predictive),
9226 ..HighlightStyle::default()
9227 },
9228 },
9229 )
9230 }
9231}
9232
9233impl ViewInputHandler for Editor {
9234 fn text_for_range(
9235 &mut self,
9236 range_utf16: Range<usize>,
9237 cx: &mut ViewContext<Self>,
9238 ) -> Option<String> {
9239 Some(
9240 self.buffer
9241 .read(cx)
9242 .read(cx)
9243 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9244 .collect(),
9245 )
9246 }
9247
9248 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9249 // Prevent the IME menu from appearing when holding down an alphabetic key
9250 // while input is disabled.
9251 if !self.input_enabled {
9252 return None;
9253 }
9254
9255 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9256 Some(range.start.0..range.end.0)
9257 }
9258
9259 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9260 let snapshot = self.buffer.read(cx).read(cx);
9261 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9262 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9263 }
9264
9265 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9266 self.clear_highlights::<InputComposition>(cx);
9267 self.ime_transaction.take();
9268 }
9269
9270 fn replace_text_in_range(
9271 &mut self,
9272 range_utf16: Option<Range<usize>>,
9273 text: &str,
9274 cx: &mut ViewContext<Self>,
9275 ) {
9276 if !self.input_enabled {
9277 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9278 return;
9279 }
9280
9281 self.transact(cx, |this, cx| {
9282 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9283 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9284 Some(this.selection_replacement_ranges(range_utf16, cx))
9285 } else {
9286 this.marked_text_ranges(cx)
9287 };
9288
9289 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9290 let newest_selection_id = this.selections.newest_anchor().id;
9291 this.selections
9292 .all::<OffsetUtf16>(cx)
9293 .iter()
9294 .zip(ranges_to_replace.iter())
9295 .find_map(|(selection, range)| {
9296 if selection.id == newest_selection_id {
9297 Some(
9298 (range.start.0 as isize - selection.head().0 as isize)
9299 ..(range.end.0 as isize - selection.head().0 as isize),
9300 )
9301 } else {
9302 None
9303 }
9304 })
9305 });
9306
9307 cx.emit(EditorEvent::InputHandled {
9308 utf16_range_to_replace: range_to_replace,
9309 text: text.into(),
9310 });
9311
9312 if let Some(new_selected_ranges) = new_selected_ranges {
9313 this.change_selections(None, cx, |selections| {
9314 selections.select_ranges(new_selected_ranges)
9315 });
9316 }
9317
9318 this.handle_input(text, cx);
9319 });
9320
9321 if let Some(transaction) = self.ime_transaction {
9322 self.buffer.update(cx, |buffer, cx| {
9323 buffer.group_until_transaction(transaction, cx);
9324 });
9325 }
9326
9327 self.unmark_text(cx);
9328 }
9329
9330 fn replace_and_mark_text_in_range(
9331 &mut self,
9332 range_utf16: Option<Range<usize>>,
9333 text: &str,
9334 new_selected_range_utf16: Option<Range<usize>>,
9335 cx: &mut ViewContext<Self>,
9336 ) {
9337 if !self.input_enabled {
9338 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9339 return;
9340 }
9341
9342 let transaction = self.transact(cx, |this, cx| {
9343 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9344 let snapshot = this.buffer.read(cx).read(cx);
9345 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9346 for marked_range in &mut marked_ranges {
9347 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9348 marked_range.start.0 += relative_range_utf16.start;
9349 marked_range.start =
9350 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9351 marked_range.end =
9352 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9353 }
9354 }
9355 Some(marked_ranges)
9356 } else if let Some(range_utf16) = range_utf16 {
9357 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9358 Some(this.selection_replacement_ranges(range_utf16, cx))
9359 } else {
9360 None
9361 };
9362
9363 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9364 let newest_selection_id = this.selections.newest_anchor().id;
9365 this.selections
9366 .all::<OffsetUtf16>(cx)
9367 .iter()
9368 .zip(ranges_to_replace.iter())
9369 .find_map(|(selection, range)| {
9370 if selection.id == newest_selection_id {
9371 Some(
9372 (range.start.0 as isize - selection.head().0 as isize)
9373 ..(range.end.0 as isize - selection.head().0 as isize),
9374 )
9375 } else {
9376 None
9377 }
9378 })
9379 });
9380
9381 cx.emit(EditorEvent::InputHandled {
9382 utf16_range_to_replace: range_to_replace,
9383 text: text.into(),
9384 });
9385
9386 if let Some(ranges) = ranges_to_replace {
9387 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9388 }
9389
9390 let marked_ranges = {
9391 let snapshot = this.buffer.read(cx).read(cx);
9392 this.selections
9393 .disjoint_anchors()
9394 .iter()
9395 .map(|selection| {
9396 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9397 })
9398 .collect::<Vec<_>>()
9399 };
9400
9401 if text.is_empty() {
9402 this.unmark_text(cx);
9403 } else {
9404 this.highlight_text::<InputComposition>(
9405 marked_ranges.clone(),
9406 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9407 cx,
9408 );
9409 }
9410
9411 this.handle_input(text, cx);
9412
9413 if let Some(new_selected_range) = new_selected_range_utf16 {
9414 let snapshot = this.buffer.read(cx).read(cx);
9415 let new_selected_ranges = marked_ranges
9416 .into_iter()
9417 .map(|marked_range| {
9418 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9419 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9420 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9421 snapshot.clip_offset_utf16(new_start, Bias::Left)
9422 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9423 })
9424 .collect::<Vec<_>>();
9425
9426 drop(snapshot);
9427 this.change_selections(None, cx, |selections| {
9428 selections.select_ranges(new_selected_ranges)
9429 });
9430 }
9431 });
9432
9433 self.ime_transaction = self.ime_transaction.or(transaction);
9434 if let Some(transaction) = self.ime_transaction {
9435 self.buffer.update(cx, |buffer, cx| {
9436 buffer.group_until_transaction(transaction, cx);
9437 });
9438 }
9439
9440 if self.text_highlights::<InputComposition>(cx).is_none() {
9441 self.ime_transaction.take();
9442 }
9443 }
9444
9445 fn bounds_for_range(
9446 &mut self,
9447 range_utf16: Range<usize>,
9448 element_bounds: gpui::Bounds<Pixels>,
9449 cx: &mut ViewContext<Self>,
9450 ) -> Option<gpui::Bounds<Pixels>> {
9451 let text_layout_details = self.text_layout_details(cx);
9452 let style = &text_layout_details.editor_style;
9453 let font_id = cx.text_system().resolve_font(&style.text.font());
9454 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9455 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9456 let em_width = cx
9457 .text_system()
9458 .typographic_bounds(font_id, font_size, 'm')
9459 .unwrap()
9460 .size
9461 .width;
9462
9463 let snapshot = self.snapshot(cx);
9464 let scroll_position = snapshot.scroll_position();
9465 let scroll_left = scroll_position.x * em_width;
9466
9467 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9468 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9469 + self.gutter_width;
9470 let y = line_height * (start.row() as f32 - scroll_position.y);
9471
9472 Some(Bounds {
9473 origin: element_bounds.origin + point(x, y),
9474 size: size(em_width, line_height),
9475 })
9476 }
9477}
9478
9479trait SelectionExt {
9480 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9481 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9482 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9483 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9484 -> Range<u32>;
9485}
9486
9487impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9488 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9489 let start = self.start.to_point(buffer);
9490 let end = self.end.to_point(buffer);
9491 if self.reversed {
9492 end..start
9493 } else {
9494 start..end
9495 }
9496 }
9497
9498 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9499 let start = self.start.to_offset(buffer);
9500 let end = self.end.to_offset(buffer);
9501 if self.reversed {
9502 end..start
9503 } else {
9504 start..end
9505 }
9506 }
9507
9508 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9509 let start = self
9510 .start
9511 .to_point(&map.buffer_snapshot)
9512 .to_display_point(map);
9513 let end = self
9514 .end
9515 .to_point(&map.buffer_snapshot)
9516 .to_display_point(map);
9517 if self.reversed {
9518 end..start
9519 } else {
9520 start..end
9521 }
9522 }
9523
9524 fn spanned_rows(
9525 &self,
9526 include_end_if_at_line_start: bool,
9527 map: &DisplaySnapshot,
9528 ) -> Range<u32> {
9529 let start = self.start.to_point(&map.buffer_snapshot);
9530 let mut end = self.end.to_point(&map.buffer_snapshot);
9531 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9532 end.row -= 1;
9533 }
9534
9535 let buffer_start = map.prev_line_boundary(start).0;
9536 let buffer_end = map.next_line_boundary(end).0;
9537 buffer_start.row..buffer_end.row + 1
9538 }
9539}
9540
9541impl<T: InvalidationRegion> InvalidationStack<T> {
9542 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9543 where
9544 S: Clone + ToOffset,
9545 {
9546 while let Some(region) = self.last() {
9547 let all_selections_inside_invalidation_ranges =
9548 if selections.len() == region.ranges().len() {
9549 selections
9550 .iter()
9551 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9552 .all(|(selection, invalidation_range)| {
9553 let head = selection.head().to_offset(buffer);
9554 invalidation_range.start <= head && invalidation_range.end >= head
9555 })
9556 } else {
9557 false
9558 };
9559
9560 if all_selections_inside_invalidation_ranges {
9561 break;
9562 } else {
9563 self.pop();
9564 }
9565 }
9566 }
9567}
9568
9569impl<T> Default for InvalidationStack<T> {
9570 fn default() -> Self {
9571 Self(Default::default())
9572 }
9573}
9574
9575impl<T> Deref for InvalidationStack<T> {
9576 type Target = Vec<T>;
9577
9578 fn deref(&self) -> &Self::Target {
9579 &self.0
9580 }
9581}
9582
9583impl<T> DerefMut for InvalidationStack<T> {
9584 fn deref_mut(&mut self) -> &mut Self::Target {
9585 &mut self.0
9586 }
9587}
9588
9589impl InvalidationRegion for SnippetState {
9590 fn ranges(&self) -> &[Range<Anchor>] {
9591 &self.ranges[self.active_index]
9592 }
9593}
9594
9595pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9596 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9597
9598 Arc::new(move |cx: &mut BlockContext| {
9599 let color = Some(cx.theme().colors().text_accent);
9600 let group_id: SharedString = cx.block_id.to_string().into();
9601 // TODO: Nate: We should tint the background of the block with the severity color
9602 // We need to extend the theme before we can do this
9603 h_flex()
9604 .id(cx.block_id)
9605 .group(group_id.clone())
9606 .relative()
9607 .pl(cx.anchor_x)
9608 .size_full()
9609 .gap_2()
9610 .child(
9611 StyledText::new(text_without_backticks.clone()).with_highlights(
9612 &cx.text_style(),
9613 code_ranges.iter().map(|range| {
9614 (
9615 range.clone(),
9616 HighlightStyle {
9617 color,
9618 ..Default::default()
9619 },
9620 )
9621 }),
9622 ),
9623 )
9624 .child(
9625 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9626 .icon_color(Color::Muted)
9627 .size(ButtonSize::Compact)
9628 .style(ButtonStyle::Transparent)
9629 .visible_on_hover(group_id)
9630 .on_click({
9631 let message = diagnostic.message.clone();
9632 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9633 })
9634 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9635 )
9636 .into_any_element()
9637 })
9638}
9639
9640pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9641 let mut text_without_backticks = String::new();
9642 let mut code_ranges = Vec::new();
9643
9644 if let Some(source) = &diagnostic.source {
9645 text_without_backticks.push_str(&source);
9646 code_ranges.push(0..source.len());
9647 text_without_backticks.push_str(": ");
9648 }
9649
9650 let mut prev_offset = 0;
9651 let mut in_code_block = false;
9652 for (ix, _) in diagnostic
9653 .message
9654 .match_indices('`')
9655 .chain([(diagnostic.message.len(), "")])
9656 {
9657 let prev_len = text_without_backticks.len();
9658 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9659 prev_offset = ix + 1;
9660 if in_code_block {
9661 code_ranges.push(prev_len..text_without_backticks.len());
9662 in_code_block = false;
9663 } else {
9664 in_code_block = true;
9665 }
9666 }
9667
9668 (text_without_backticks.into(), code_ranges)
9669}
9670
9671fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9672 match (severity, valid) {
9673 (DiagnosticSeverity::ERROR, true) => colors.error,
9674 (DiagnosticSeverity::ERROR, false) => colors.error,
9675 (DiagnosticSeverity::WARNING, true) => colors.warning,
9676 (DiagnosticSeverity::WARNING, false) => colors.warning,
9677 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9678 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9679 (DiagnosticSeverity::HINT, true) => colors.info,
9680 (DiagnosticSeverity::HINT, false) => colors.info,
9681 _ => colors.ignored,
9682 }
9683}
9684
9685pub fn styled_runs_for_code_label<'a>(
9686 label: &'a CodeLabel,
9687 syntax_theme: &'a theme::SyntaxTheme,
9688) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9689 let fade_out = HighlightStyle {
9690 fade_out: Some(0.35),
9691 ..Default::default()
9692 };
9693
9694 let mut prev_end = label.filter_range.end;
9695 label
9696 .runs
9697 .iter()
9698 .enumerate()
9699 .flat_map(move |(ix, (range, highlight_id))| {
9700 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9701 style
9702 } else {
9703 return Default::default();
9704 };
9705 let mut muted_style = style;
9706 muted_style.highlight(fade_out);
9707
9708 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9709 if range.start >= label.filter_range.end {
9710 if range.start > prev_end {
9711 runs.push((prev_end..range.start, fade_out));
9712 }
9713 runs.push((range.clone(), muted_style));
9714 } else if range.end <= label.filter_range.end {
9715 runs.push((range.clone(), style));
9716 } else {
9717 runs.push((range.start..label.filter_range.end, style));
9718 runs.push((label.filter_range.end..range.end, muted_style));
9719 }
9720 prev_end = cmp::max(prev_end, range.end);
9721
9722 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9723 runs.push((prev_end..label.text.len(), fade_out));
9724 }
9725
9726 runs
9727 })
9728}
9729
9730pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9731 let mut index = 0;
9732 let mut codepoints = text.char_indices().peekable();
9733
9734 std::iter::from_fn(move || {
9735 let start_index = index;
9736 while let Some((new_index, codepoint)) = codepoints.next() {
9737 index = new_index + codepoint.len_utf8();
9738 let current_upper = codepoint.is_uppercase();
9739 let next_upper = codepoints
9740 .peek()
9741 .map(|(_, c)| c.is_uppercase())
9742 .unwrap_or(false);
9743
9744 if !current_upper && next_upper {
9745 return Some(&text[start_index..index]);
9746 }
9747 }
9748
9749 index = text.len();
9750 if start_index < text.len() {
9751 return Some(&text[start_index..]);
9752 }
9753 None
9754 })
9755 .flat_map(|word| word.split_inclusive('_'))
9756 .flat_map(|word| word.split_inclusive('-'))
9757}
9758
9759trait RangeToAnchorExt {
9760 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9761}
9762
9763impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9764 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9765 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9766 }
9767}