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::{BufferId, 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);
129pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
130#[doc(hidden)]
131pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
132#[doc(hidden)]
133pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
134
135pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
136
137pub fn render_parsed_markdown(
138 element_id: impl Into<ElementId>,
139 parsed: &language::ParsedMarkdown,
140 editor_style: &EditorStyle,
141 workspace: Option<WeakView<Workspace>>,
142 cx: &mut ViewContext<Editor>,
143) -> InteractiveText {
144 let code_span_background_color = cx
145 .theme()
146 .colors()
147 .editor_document_highlight_read_background;
148
149 let highlights = gpui::combine_highlights(
150 parsed.highlights.iter().filter_map(|(range, highlight)| {
151 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
152 Some((range.clone(), highlight))
153 }),
154 parsed
155 .regions
156 .iter()
157 .zip(&parsed.region_ranges)
158 .filter_map(|(region, range)| {
159 if region.code {
160 Some((
161 range.clone(),
162 HighlightStyle {
163 background_color: Some(code_span_background_color),
164 ..Default::default()
165 },
166 ))
167 } else {
168 None
169 }
170 }),
171 );
172
173 let mut links = Vec::new();
174 let mut link_ranges = Vec::new();
175 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
176 if let Some(link) = region.link.clone() {
177 links.push(link);
178 link_ranges.push(range.clone());
179 }
180 }
181
182 InteractiveText::new(
183 element_id,
184 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
185 )
186 .on_click(link_ranges, move |clicked_range_ix, cx| {
187 match &links[clicked_range_ix] {
188 markdown::Link::Web { url } => cx.open_url(url),
189 markdown::Link::Path { path } => {
190 if let Some(workspace) = &workspace {
191 _ = workspace.update(cx, |workspace, cx| {
192 workspace.open_abs_path(path.clone(), false, cx).detach();
193 });
194 }
195 }
196 }
197 })
198}
199
200#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
201pub(crate) enum InlayId {
202 Suggestion(usize),
203 Hint(usize),
204}
205
206impl InlayId {
207 fn id(&self) -> usize {
208 match self {
209 Self::Suggestion(id) => *id,
210 Self::Hint(id) => *id,
211 }
212 }
213}
214
215enum DocumentHighlightRead {}
216enum DocumentHighlightWrite {}
217enum InputComposition {}
218
219#[derive(Copy, Clone, PartialEq, Eq)]
220pub enum Direction {
221 Prev,
222 Next,
223}
224
225pub fn init_settings(cx: &mut AppContext) {
226 EditorSettings::register(cx);
227}
228
229pub fn init(cx: &mut AppContext) {
230 init_settings(cx);
231
232 workspace::register_project_item::<Editor>(cx);
233 workspace::register_followable_item::<Editor>(cx);
234 workspace::register_deserializable_item::<Editor>(cx);
235 cx.observe_new_views(
236 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
237 workspace.register_action(Editor::new_file);
238 workspace.register_action(Editor::new_file_in_direction);
239 },
240 )
241 .detach();
242
243 cx.on_action(move |_: &workspace::NewFile, cx| {
244 let app_state = cx.global::<Weak<workspace::AppState>>();
245 if let Some(app_state) = app_state.upgrade() {
246 workspace::open_new(&app_state, cx, |workspace, cx| {
247 Editor::new_file(workspace, &Default::default(), cx)
248 })
249 .detach();
250 }
251 });
252 cx.on_action(move |_: &workspace::NewWindow, cx| {
253 let app_state = cx.global::<Weak<workspace::AppState>>();
254 if let Some(app_state) = app_state.upgrade() {
255 workspace::open_new(&app_state, cx, |workspace, cx| {
256 Editor::new_file(workspace, &Default::default(), cx)
257 })
258 .detach();
259 }
260 });
261}
262
263trait InvalidationRegion {
264 fn ranges(&self) -> &[Range<Anchor>];
265}
266
267#[derive(Clone, Debug, PartialEq)]
268pub enum SelectPhase {
269 Begin {
270 position: DisplayPoint,
271 add: bool,
272 click_count: usize,
273 },
274 BeginColumnar {
275 position: DisplayPoint,
276 goal_column: u32,
277 },
278 Extend {
279 position: DisplayPoint,
280 click_count: usize,
281 },
282 Update {
283 position: DisplayPoint,
284 goal_column: u32,
285 scroll_delta: gpui::Point<f32>,
286 },
287 End,
288}
289
290#[derive(Clone, Debug)]
291pub(crate) enum SelectMode {
292 Character,
293 Word(Range<Anchor>),
294 Line(Range<Anchor>),
295 All,
296}
297
298#[derive(Copy, Clone, PartialEq, Eq, Debug)]
299pub enum EditorMode {
300 SingleLine,
301 AutoHeight { max_lines: usize },
302 Full,
303}
304
305#[derive(Clone, Debug)]
306pub enum SoftWrap {
307 None,
308 EditorWidth,
309 Column(u32),
310}
311
312#[derive(Clone)]
313pub struct EditorStyle {
314 pub background: Hsla,
315 pub local_player: PlayerColor,
316 pub text: TextStyle,
317 pub scrollbar_width: Pixels,
318 pub syntax: Arc<SyntaxTheme>,
319 pub status: StatusColors,
320 pub inlays_style: HighlightStyle,
321 pub suggestions_style: HighlightStyle,
322}
323
324impl Default for EditorStyle {
325 fn default() -> Self {
326 Self {
327 background: Hsla::default(),
328 local_player: PlayerColor::default(),
329 text: TextStyle::default(),
330 scrollbar_width: Pixels::default(),
331 syntax: Default::default(),
332 // HACK: Status colors don't have a real default.
333 // We should look into removing the status colors from the editor
334 // style and retrieve them directly from the theme.
335 status: StatusColors::dark(),
336 inlays_style: HighlightStyle::default(),
337 suggestions_style: HighlightStyle::default(),
338 }
339 }
340}
341
342type CompletionId = usize;
343
344// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
345// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
346
347type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
348type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
349
350pub struct Editor {
351 handle: WeakView<Self>,
352 focus_handle: FocusHandle,
353 buffer: Model<MultiBuffer>,
354 display_map: Model<DisplayMap>,
355 pub selections: SelectionsCollection,
356 pub scroll_manager: ScrollManager,
357 columnar_selection_tail: Option<Anchor>,
358 add_selections_state: Option<AddSelectionsState>,
359 select_next_state: Option<SelectNextState>,
360 select_prev_state: Option<SelectNextState>,
361 selection_history: SelectionHistory,
362 autoclose_regions: Vec<AutocloseRegion>,
363 snippet_stack: InvalidationStack<SnippetState>,
364 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
365 ime_transaction: Option<TransactionId>,
366 active_diagnostics: Option<ActiveDiagnosticGroup>,
367 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
368 project: Option<Model<Project>>,
369 completion_provider: Option<Box<dyn CompletionProvider>>,
370 collaboration_hub: Option<Box<dyn CollaborationHub>>,
371 blink_manager: Model<BlinkManager>,
372 show_cursor_names: bool,
373 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
374 pub show_local_selections: bool,
375 mode: EditorMode,
376 show_gutter: bool,
377 show_wrap_guides: Option<bool>,
378 placeholder_text: Option<Arc<str>>,
379 highlighted_rows: Option<Range<u32>>,
380 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
381 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
382 nav_history: Option<ItemNavHistory>,
383 context_menu: RwLock<Option<ContextMenu>>,
384 mouse_context_menu: Option<MouseContextMenu>,
385 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
386 next_completion_id: CompletionId,
387 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
388 code_actions_task: Option<Task<()>>,
389 document_highlights_task: Option<Task<()>>,
390 pending_rename: Option<RenameState>,
391 searchable: bool,
392 cursor_shape: CursorShape,
393 collapse_matches: bool,
394 autoindent_mode: Option<AutoindentMode>,
395 workspace: Option<(WeakView<Workspace>, i64)>,
396 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
397 input_enabled: bool,
398 read_only: bool,
399 leader_peer_id: Option<PeerId>,
400 remote_id: Option<ViewId>,
401 hover_state: HoverState,
402 gutter_hovered: bool,
403 link_go_to_definition_state: LinkGoToDefinitionState,
404 copilot_state: CopilotState,
405 inlay_hint_cache: InlayHintCache,
406 next_inlay_id: usize,
407 _subscriptions: Vec<Subscription>,
408 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
409 gutter_width: Pixels,
410 style: Option<EditorStyle>,
411 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
412 show_copilot_suggestions: bool,
413 use_autoclose: bool,
414}
415
416pub struct EditorSnapshot {
417 pub mode: EditorMode,
418 show_gutter: bool,
419 pub display_snapshot: DisplaySnapshot,
420 pub placeholder_text: Option<Arc<str>>,
421 is_focused: bool,
422 scroll_anchor: ScrollAnchor,
423 ongoing_scroll: OngoingScroll,
424}
425
426pub struct GutterDimensions {
427 pub padding: Pixels,
428 pub width: Pixels,
429 pub margin: Pixels,
430}
431
432impl Default for GutterDimensions {
433 fn default() -> Self {
434 Self {
435 padding: Pixels::ZERO,
436 width: Pixels::ZERO,
437 margin: Pixels::ZERO,
438 }
439 }
440}
441
442#[derive(Debug)]
443pub struct RemoteSelection {
444 pub replica_id: ReplicaId,
445 pub selection: Selection<Anchor>,
446 pub cursor_shape: CursorShape,
447 pub peer_id: PeerId,
448 pub line_mode: bool,
449 pub participant_index: Option<ParticipantIndex>,
450 pub user_name: Option<SharedString>,
451}
452
453#[derive(Clone, Debug)]
454struct SelectionHistoryEntry {
455 selections: Arc<[Selection<Anchor>]>,
456 select_next_state: Option<SelectNextState>,
457 select_prev_state: Option<SelectNextState>,
458 add_selections_state: Option<AddSelectionsState>,
459}
460
461enum SelectionHistoryMode {
462 Normal,
463 Undoing,
464 Redoing,
465}
466
467#[derive(Clone, PartialEq, Eq, Hash)]
468struct HoveredCursor {
469 replica_id: u16,
470 selection_id: usize,
471}
472
473impl Default for SelectionHistoryMode {
474 fn default() -> Self {
475 Self::Normal
476 }
477}
478
479#[derive(Default)]
480struct SelectionHistory {
481 #[allow(clippy::type_complexity)]
482 selections_by_transaction:
483 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
484 mode: SelectionHistoryMode,
485 undo_stack: VecDeque<SelectionHistoryEntry>,
486 redo_stack: VecDeque<SelectionHistoryEntry>,
487}
488
489impl SelectionHistory {
490 fn insert_transaction(
491 &mut self,
492 transaction_id: TransactionId,
493 selections: Arc<[Selection<Anchor>]>,
494 ) {
495 self.selections_by_transaction
496 .insert(transaction_id, (selections, None));
497 }
498
499 #[allow(clippy::type_complexity)]
500 fn transaction(
501 &self,
502 transaction_id: TransactionId,
503 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
504 self.selections_by_transaction.get(&transaction_id)
505 }
506
507 #[allow(clippy::type_complexity)]
508 fn transaction_mut(
509 &mut self,
510 transaction_id: TransactionId,
511 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
512 self.selections_by_transaction.get_mut(&transaction_id)
513 }
514
515 fn push(&mut self, entry: SelectionHistoryEntry) {
516 if !entry.selections.is_empty() {
517 match self.mode {
518 SelectionHistoryMode::Normal => {
519 self.push_undo(entry);
520 self.redo_stack.clear();
521 }
522 SelectionHistoryMode::Undoing => self.push_redo(entry),
523 SelectionHistoryMode::Redoing => self.push_undo(entry),
524 }
525 }
526 }
527
528 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
529 if self
530 .undo_stack
531 .back()
532 .map_or(true, |e| e.selections != entry.selections)
533 {
534 self.undo_stack.push_back(entry);
535 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
536 self.undo_stack.pop_front();
537 }
538 }
539 }
540
541 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
542 if self
543 .redo_stack
544 .back()
545 .map_or(true, |e| e.selections != entry.selections)
546 {
547 self.redo_stack.push_back(entry);
548 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
549 self.redo_stack.pop_front();
550 }
551 }
552 }
553}
554
555#[derive(Clone, Debug)]
556struct AddSelectionsState {
557 above: bool,
558 stack: Vec<usize>,
559}
560
561#[derive(Clone)]
562struct SelectNextState {
563 query: AhoCorasick,
564 wordwise: bool,
565 done: bool,
566}
567
568impl std::fmt::Debug for SelectNextState {
569 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
570 f.debug_struct(std::any::type_name::<Self>())
571 .field("wordwise", &self.wordwise)
572 .field("done", &self.done)
573 .finish()
574 }
575}
576
577#[derive(Debug)]
578struct AutocloseRegion {
579 selection_id: usize,
580 range: Range<Anchor>,
581 pair: BracketPair,
582}
583
584#[derive(Debug)]
585struct SnippetState {
586 ranges: Vec<Vec<Range<Anchor>>>,
587 active_index: usize,
588}
589
590#[doc(hidden)]
591pub struct RenameState {
592 pub range: Range<Anchor>,
593 pub old_name: Arc<str>,
594 pub editor: View<Editor>,
595 block_id: BlockId,
596}
597
598struct InvalidationStack<T>(Vec<T>);
599
600enum ContextMenu {
601 Completions(CompletionsMenu),
602 CodeActions(CodeActionsMenu),
603}
604
605impl ContextMenu {
606 fn select_first(
607 &mut self,
608 project: Option<&Model<Project>>,
609 cx: &mut ViewContext<Editor>,
610 ) -> bool {
611 if self.visible() {
612 match self {
613 ContextMenu::Completions(menu) => menu.select_first(project, cx),
614 ContextMenu::CodeActions(menu) => menu.select_first(cx),
615 }
616 true
617 } else {
618 false
619 }
620 }
621
622 fn select_prev(
623 &mut self,
624 project: Option<&Model<Project>>,
625 cx: &mut ViewContext<Editor>,
626 ) -> bool {
627 if self.visible() {
628 match self {
629 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
630 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
631 }
632 true
633 } else {
634 false
635 }
636 }
637
638 fn select_next(
639 &mut self,
640 project: Option<&Model<Project>>,
641 cx: &mut ViewContext<Editor>,
642 ) -> bool {
643 if self.visible() {
644 match self {
645 ContextMenu::Completions(menu) => menu.select_next(project, cx),
646 ContextMenu::CodeActions(menu) => menu.select_next(cx),
647 }
648 true
649 } else {
650 false
651 }
652 }
653
654 fn select_last(
655 &mut self,
656 project: Option<&Model<Project>>,
657 cx: &mut ViewContext<Editor>,
658 ) -> bool {
659 if self.visible() {
660 match self {
661 ContextMenu::Completions(menu) => menu.select_last(project, cx),
662 ContextMenu::CodeActions(menu) => menu.select_last(cx),
663 }
664 true
665 } else {
666 false
667 }
668 }
669
670 fn visible(&self) -> bool {
671 match self {
672 ContextMenu::Completions(menu) => menu.visible(),
673 ContextMenu::CodeActions(menu) => menu.visible(),
674 }
675 }
676
677 fn render(
678 &self,
679 cursor_position: DisplayPoint,
680 style: &EditorStyle,
681 max_height: Pixels,
682 workspace: Option<WeakView<Workspace>>,
683 cx: &mut ViewContext<Editor>,
684 ) -> (DisplayPoint, AnyElement) {
685 match self {
686 ContextMenu::Completions(menu) => (
687 cursor_position,
688 menu.render(style, max_height, workspace, cx),
689 ),
690 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
691 }
692 }
693}
694
695#[derive(Clone)]
696struct CompletionsMenu {
697 id: CompletionId,
698 initial_position: Anchor,
699 buffer: Model<Buffer>,
700 completions: Arc<RwLock<Box<[Completion]>>>,
701 match_candidates: Arc<[StringMatchCandidate]>,
702 matches: Arc<[StringMatch]>,
703 selected_item: usize,
704 scroll_handle: UniformListScrollHandle,
705}
706
707impl CompletionsMenu {
708 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
709 self.selected_item = 0;
710 self.scroll_handle.scroll_to_item(self.selected_item);
711 self.attempt_resolve_selected_completion_documentation(project, cx);
712 cx.notify();
713 }
714
715 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
716 if self.selected_item > 0 {
717 self.selected_item -= 1;
718 } else {
719 self.selected_item = self.matches.len() - 1;
720 }
721 self.scroll_handle.scroll_to_item(self.selected_item);
722 self.attempt_resolve_selected_completion_documentation(project, cx);
723 cx.notify();
724 }
725
726 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
727 if self.selected_item + 1 < self.matches.len() {
728 self.selected_item += 1;
729 } else {
730 self.selected_item = 0;
731 }
732 self.scroll_handle.scroll_to_item(self.selected_item);
733 self.attempt_resolve_selected_completion_documentation(project, cx);
734 cx.notify();
735 }
736
737 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
738 self.selected_item = self.matches.len() - 1;
739 self.scroll_handle.scroll_to_item(self.selected_item);
740 self.attempt_resolve_selected_completion_documentation(project, cx);
741 cx.notify();
742 }
743
744 fn pre_resolve_completion_documentation(
745 &self,
746 editor: &Editor,
747 cx: &mut ViewContext<Editor>,
748 ) -> Option<Task<()>> {
749 let settings = EditorSettings::get_global(cx);
750 if !settings.show_completion_documentation {
751 return None;
752 }
753
754 let Some(provider) = editor.completion_provider.as_ref() else {
755 return None;
756 };
757
758 let resolve_task = provider.resolve_completions(
759 self.matches.iter().map(|m| m.candidate_id).collect(),
760 self.completions.clone(),
761 cx,
762 );
763
764 return Some(cx.spawn(move |this, mut cx| async move {
765 if let Some(true) = resolve_task.await.log_err() {
766 this.update(&mut cx, |_, cx| cx.notify()).ok();
767 }
768 }));
769 }
770
771 fn attempt_resolve_selected_completion_documentation(
772 &mut self,
773 project: Option<&Model<Project>>,
774 cx: &mut ViewContext<Editor>,
775 ) {
776 let settings = EditorSettings::get_global(cx);
777 if !settings.show_completion_documentation {
778 return;
779 }
780
781 let completion_index = self.matches[self.selected_item].candidate_id;
782 let Some(project) = project else {
783 return;
784 };
785
786 let resolve_task = project.update(cx, |project, cx| {
787 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
788 });
789 cx.spawn(move |this, mut cx| async move {
790 if let Some(true) = resolve_task.await.log_err() {
791 this.update(&mut cx, |_, cx| cx.notify()).ok();
792 }
793 })
794 .detach();
795 }
796
797 fn visible(&self) -> bool {
798 !self.matches.is_empty()
799 }
800
801 fn render(
802 &self,
803 style: &EditorStyle,
804 max_height: Pixels,
805 workspace: Option<WeakView<Workspace>>,
806 cx: &mut ViewContext<Editor>,
807 ) -> AnyElement {
808 let settings = EditorSettings::get_global(cx);
809 let show_completion_documentation = settings.show_completion_documentation;
810
811 let widest_completion_ix = self
812 .matches
813 .iter()
814 .enumerate()
815 .max_by_key(|(_, mat)| {
816 let completions = self.completions.read();
817 let completion = &completions[mat.candidate_id];
818 let documentation = &completion.documentation;
819
820 let mut len = completion.label.text.chars().count();
821 if let Some(Documentation::SingleLine(text)) = documentation {
822 if show_completion_documentation {
823 len += text.chars().count();
824 }
825 }
826
827 len
828 })
829 .map(|(ix, _)| ix);
830
831 let completions = self.completions.clone();
832 let matches = self.matches.clone();
833 let selected_item = self.selected_item;
834 let style = style.clone();
835
836 let multiline_docs = {
837 let mat = &self.matches[selected_item];
838 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
839 Some(Documentation::MultiLinePlainText(text)) => {
840 Some(div().child(SharedString::from(text.clone())))
841 }
842 Some(Documentation::MultiLineMarkdown(parsed)) => Some(div().child(
843 render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
844 )),
845 _ => None,
846 };
847 multiline_docs.map(|div| {
848 div.id("multiline_docs")
849 .max_h(max_height)
850 .flex_1()
851 .px_1p5()
852 .py_1()
853 .min_w(px(260.))
854 .max_w(px(640.))
855 .w(px(500.))
856 .overflow_y_scroll()
857 // Prevent a mouse down on documentation from being propagated to the editor,
858 // because that would move the cursor.
859 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
860 })
861 };
862
863 let list = uniform_list(
864 cx.view().clone(),
865 "completions",
866 matches.len(),
867 move |_editor, range, cx| {
868 let start_ix = range.start;
869 let completions_guard = completions.read();
870
871 matches[range]
872 .iter()
873 .enumerate()
874 .map(|(ix, mat)| {
875 let item_ix = start_ix + ix;
876 let candidate_id = mat.candidate_id;
877 let completion = &completions_guard[candidate_id];
878
879 let documentation = if show_completion_documentation {
880 &completion.documentation
881 } else {
882 &None
883 };
884
885 let highlights = gpui::combine_highlights(
886 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
887 styled_runs_for_code_label(&completion.label, &style.syntax).map(
888 |(range, mut highlight)| {
889 // Ignore font weight for syntax highlighting, as we'll use it
890 // for fuzzy matches.
891 highlight.font_weight = None;
892 (range, highlight)
893 },
894 ),
895 );
896 let completion_label = StyledText::new(completion.label.text.clone())
897 .with_highlights(&style.text, highlights);
898 let documentation_label =
899 if let Some(Documentation::SingleLine(text)) = documentation {
900 if text.trim().is_empty() {
901 None
902 } else {
903 Some(
904 h_flex().ml_4().child(
905 Label::new(text.clone())
906 .size(LabelSize::Small)
907 .color(Color::Muted),
908 ),
909 )
910 }
911 } else {
912 None
913 };
914
915 div().min_w(px(220.)).max_w(px(540.)).child(
916 ListItem::new(mat.candidate_id)
917 .inset(true)
918 .selected(item_ix == selected_item)
919 .on_click(cx.listener(move |editor, _event, cx| {
920 cx.stop_propagation();
921 editor
922 .confirm_completion(
923 &ConfirmCompletion {
924 item_ix: Some(item_ix),
925 },
926 cx,
927 )
928 .map(|task| task.detach_and_log_err(cx));
929 }))
930 .child(h_flex().overflow_hidden().child(completion_label))
931 .end_slot::<Div>(documentation_label),
932 )
933 })
934 .collect()
935 },
936 )
937 .max_h(max_height)
938 .track_scroll(self.scroll_handle.clone())
939 .with_width_from_item(widest_completion_ix);
940
941 Popover::new()
942 .child(list)
943 .when_some(multiline_docs, |popover, multiline_docs| {
944 popover.aside(multiline_docs)
945 })
946 .into_any_element()
947 }
948
949 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
950 let mut matches = if let Some(query) = query {
951 fuzzy::match_strings(
952 &self.match_candidates,
953 query,
954 query.chars().any(|c| c.is_uppercase()),
955 100,
956 &Default::default(),
957 executor,
958 )
959 .await
960 } else {
961 self.match_candidates
962 .iter()
963 .enumerate()
964 .map(|(candidate_id, candidate)| StringMatch {
965 candidate_id,
966 score: Default::default(),
967 positions: Default::default(),
968 string: candidate.string.clone(),
969 })
970 .collect()
971 };
972
973 // Remove all candidates where the query's start does not match the start of any word in the candidate
974 if let Some(query) = query {
975 if let Some(query_start) = query.chars().next() {
976 matches.retain(|string_match| {
977 split_words(&string_match.string).any(|word| {
978 // Check that the first codepoint of the word as lowercase matches the first
979 // codepoint of the query as lowercase
980 word.chars()
981 .flat_map(|codepoint| codepoint.to_lowercase())
982 .zip(query_start.to_lowercase())
983 .all(|(word_cp, query_cp)| word_cp == query_cp)
984 })
985 });
986 }
987 }
988
989 let completions = self.completions.read();
990 matches.sort_unstable_by_key(|mat| {
991 let completion = &completions[mat.candidate_id];
992 (
993 completion.lsp_completion.sort_text.as_ref(),
994 Reverse(OrderedFloat(mat.score)),
995 completion.sort_key(),
996 )
997 });
998
999 for mat in &mut matches {
1000 let completion = &completions[mat.candidate_id];
1001 mat.string = completion.label.text.clone();
1002 for position in &mut mat.positions {
1003 *position += completion.label.filter_range.start;
1004 }
1005 }
1006 drop(completions);
1007
1008 self.matches = matches.into();
1009 self.selected_item = 0;
1010 }
1011}
1012
1013#[derive(Clone)]
1014struct CodeActionsMenu {
1015 actions: Arc<[CodeAction]>,
1016 buffer: Model<Buffer>,
1017 selected_item: usize,
1018 scroll_handle: UniformListScrollHandle,
1019 deployed_from_indicator: bool,
1020}
1021
1022impl CodeActionsMenu {
1023 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1024 self.selected_item = 0;
1025 self.scroll_handle.scroll_to_item(self.selected_item);
1026 cx.notify()
1027 }
1028
1029 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1030 if self.selected_item > 0 {
1031 self.selected_item -= 1;
1032 } else {
1033 self.selected_item = self.actions.len() - 1;
1034 }
1035 self.scroll_handle.scroll_to_item(self.selected_item);
1036 cx.notify();
1037 }
1038
1039 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1040 if self.selected_item + 1 < self.actions.len() {
1041 self.selected_item += 1;
1042 } else {
1043 self.selected_item = 0;
1044 }
1045 self.scroll_handle.scroll_to_item(self.selected_item);
1046 cx.notify();
1047 }
1048
1049 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1050 self.selected_item = self.actions.len() - 1;
1051 self.scroll_handle.scroll_to_item(self.selected_item);
1052 cx.notify()
1053 }
1054
1055 fn visible(&self) -> bool {
1056 !self.actions.is_empty()
1057 }
1058
1059 fn render(
1060 &self,
1061 mut cursor_position: DisplayPoint,
1062 _style: &EditorStyle,
1063 max_height: Pixels,
1064 cx: &mut ViewContext<Editor>,
1065 ) -> (DisplayPoint, AnyElement) {
1066 let actions = self.actions.clone();
1067 let selected_item = self.selected_item;
1068
1069 let element = uniform_list(
1070 cx.view().clone(),
1071 "code_actions_menu",
1072 self.actions.len(),
1073 move |_this, range, cx| {
1074 actions[range.clone()]
1075 .iter()
1076 .enumerate()
1077 .map(|(ix, action)| {
1078 let item_ix = range.start + ix;
1079 let selected = selected_item == item_ix;
1080 let colors = cx.theme().colors();
1081 div()
1082 .px_2()
1083 .text_color(colors.text)
1084 .when(selected, |style| {
1085 style
1086 .bg(colors.element_active)
1087 .text_color(colors.text_accent)
1088 })
1089 .hover(|style| {
1090 style
1091 .bg(colors.element_hover)
1092 .text_color(colors.text_accent)
1093 })
1094 .on_mouse_down(
1095 MouseButton::Left,
1096 cx.listener(move |editor, _, cx| {
1097 cx.stop_propagation();
1098 editor
1099 .confirm_code_action(
1100 &ConfirmCodeAction {
1101 item_ix: Some(item_ix),
1102 },
1103 cx,
1104 )
1105 .map(|task| task.detach_and_log_err(cx));
1106 }),
1107 )
1108 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1109 .child(SharedString::from(action.lsp_action.title.clone()))
1110 })
1111 .collect()
1112 },
1113 )
1114 .elevation_1(cx)
1115 .px_2()
1116 .py_1()
1117 .max_h(max_height)
1118 .track_scroll(self.scroll_handle.clone())
1119 .with_width_from_item(
1120 self.actions
1121 .iter()
1122 .enumerate()
1123 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1124 .map(|(ix, _)| ix),
1125 )
1126 .into_any_element();
1127
1128 if self.deployed_from_indicator {
1129 *cursor_position.column_mut() = 0;
1130 }
1131
1132 (cursor_position, element)
1133 }
1134}
1135
1136pub(crate) struct CopilotState {
1137 excerpt_id: Option<ExcerptId>,
1138 pending_refresh: Task<Option<()>>,
1139 pending_cycling_refresh: Task<Option<()>>,
1140 cycled: bool,
1141 completions: Vec<copilot::Completion>,
1142 active_completion_index: usize,
1143 suggestion: Option<Inlay>,
1144}
1145
1146impl Default for CopilotState {
1147 fn default() -> Self {
1148 Self {
1149 excerpt_id: None,
1150 pending_cycling_refresh: Task::ready(Some(())),
1151 pending_refresh: Task::ready(Some(())),
1152 completions: Default::default(),
1153 active_completion_index: 0,
1154 cycled: false,
1155 suggestion: None,
1156 }
1157 }
1158}
1159
1160impl CopilotState {
1161 fn active_completion(&self) -> Option<&copilot::Completion> {
1162 self.completions.get(self.active_completion_index)
1163 }
1164
1165 fn text_for_active_completion(
1166 &self,
1167 cursor: Anchor,
1168 buffer: &MultiBufferSnapshot,
1169 ) -> Option<&str> {
1170 use language::ToOffset as _;
1171
1172 let completion = self.active_completion()?;
1173 let excerpt_id = self.excerpt_id?;
1174 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1175 if excerpt_id != cursor.excerpt_id
1176 || !completion.range.start.is_valid(completion_buffer)
1177 || !completion.range.end.is_valid(completion_buffer)
1178 {
1179 return None;
1180 }
1181
1182 let mut completion_range = completion.range.to_offset(&completion_buffer);
1183 let prefix_len = Self::common_prefix(
1184 completion_buffer.chars_for_range(completion_range.clone()),
1185 completion.text.chars(),
1186 );
1187 completion_range.start += prefix_len;
1188 let suffix_len = Self::common_prefix(
1189 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1190 completion.text[prefix_len..].chars().rev(),
1191 );
1192 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1193
1194 if completion_range.is_empty()
1195 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1196 {
1197 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1198 } else {
1199 None
1200 }
1201 }
1202
1203 fn cycle_completions(&mut self, direction: Direction) {
1204 match direction {
1205 Direction::Prev => {
1206 self.active_completion_index = if self.active_completion_index == 0 {
1207 self.completions.len().saturating_sub(1)
1208 } else {
1209 self.active_completion_index - 1
1210 };
1211 }
1212 Direction::Next => {
1213 if self.completions.len() == 0 {
1214 self.active_completion_index = 0
1215 } else {
1216 self.active_completion_index =
1217 (self.active_completion_index + 1) % self.completions.len();
1218 }
1219 }
1220 }
1221 }
1222
1223 fn push_completion(&mut self, new_completion: copilot::Completion) {
1224 for completion in &self.completions {
1225 if completion.text == new_completion.text && completion.range == new_completion.range {
1226 return;
1227 }
1228 }
1229 self.completions.push(new_completion);
1230 }
1231
1232 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1233 a.zip(b)
1234 .take_while(|(a, b)| a == b)
1235 .map(|(a, _)| a.len_utf8())
1236 .sum()
1237 }
1238}
1239
1240#[derive(Debug)]
1241struct ActiveDiagnosticGroup {
1242 primary_range: Range<Anchor>,
1243 primary_message: String,
1244 blocks: HashMap<BlockId, Diagnostic>,
1245 is_valid: bool,
1246}
1247
1248#[derive(Serialize, Deserialize)]
1249pub struct ClipboardSelection {
1250 pub len: usize,
1251 pub is_entire_line: bool,
1252 pub first_line_indent: u32,
1253}
1254
1255#[derive(Debug)]
1256pub(crate) struct NavigationData {
1257 cursor_anchor: Anchor,
1258 cursor_position: Point,
1259 scroll_anchor: ScrollAnchor,
1260 scroll_top_row: u32,
1261}
1262
1263enum GotoDefinitionKind {
1264 Symbol,
1265 Type,
1266}
1267
1268#[derive(Debug, Clone)]
1269enum InlayHintRefreshReason {
1270 Toggle(bool),
1271 SettingsChange(InlayHintSettings),
1272 NewLinesShown,
1273 BufferEdited(HashSet<Arc<Language>>),
1274 RefreshRequested,
1275 ExcerptsRemoved(Vec<ExcerptId>),
1276}
1277impl InlayHintRefreshReason {
1278 fn description(&self) -> &'static str {
1279 match self {
1280 Self::Toggle(_) => "toggle",
1281 Self::SettingsChange(_) => "settings change",
1282 Self::NewLinesShown => "new lines shown",
1283 Self::BufferEdited(_) => "buffer edited",
1284 Self::RefreshRequested => "refresh requested",
1285 Self::ExcerptsRemoved(_) => "excerpts removed",
1286 }
1287 }
1288}
1289
1290impl Editor {
1291 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1292 let buffer = cx.new_model(|cx| {
1293 Buffer::new(
1294 0,
1295 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1296 String::new(),
1297 )
1298 });
1299 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1300 Self::new(EditorMode::SingleLine, buffer, None, cx)
1301 }
1302
1303 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1304 let buffer = cx.new_model(|cx| {
1305 Buffer::new(
1306 0,
1307 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1308 String::new(),
1309 )
1310 });
1311 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1312 Self::new(EditorMode::Full, buffer, None, cx)
1313 }
1314
1315 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1316 let buffer = cx.new_model(|cx| {
1317 Buffer::new(
1318 0,
1319 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1320 String::new(),
1321 )
1322 });
1323 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1324 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1325 }
1326
1327 pub fn for_buffer(
1328 buffer: Model<Buffer>,
1329 project: Option<Model<Project>>,
1330 cx: &mut ViewContext<Self>,
1331 ) -> Self {
1332 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1333 Self::new(EditorMode::Full, buffer, project, cx)
1334 }
1335
1336 pub fn for_multibuffer(
1337 buffer: Model<MultiBuffer>,
1338 project: Option<Model<Project>>,
1339 cx: &mut ViewContext<Self>,
1340 ) -> Self {
1341 Self::new(EditorMode::Full, buffer, project, cx)
1342 }
1343
1344 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1345 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1346 self.display_map.update(cx, |display_map, cx| {
1347 let snapshot = display_map.snapshot(cx);
1348 clone.display_map.update(cx, |display_map, cx| {
1349 display_map.set_state(&snapshot, cx);
1350 });
1351 });
1352 clone.selections.clone_state(&self.selections);
1353 clone.scroll_manager.clone_state(&self.scroll_manager);
1354 clone.searchable = self.searchable;
1355 clone
1356 }
1357
1358 fn new(
1359 mode: EditorMode,
1360 buffer: Model<MultiBuffer>,
1361 project: Option<Model<Project>>,
1362 cx: &mut ViewContext<Self>,
1363 ) -> Self {
1364 let style = cx.text_style();
1365 let font_size = style.font_size.to_pixels(cx.rem_size());
1366 let display_map = cx.new_model(|cx| {
1367 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1368 });
1369
1370 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1371
1372 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1373
1374 let soft_wrap_mode_override =
1375 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1376
1377 let mut project_subscriptions = Vec::new();
1378 if mode == EditorMode::Full {
1379 if let Some(project) = project.as_ref() {
1380 if buffer.read(cx).is_singleton() {
1381 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1382 cx.emit(EditorEvent::TitleChanged);
1383 }));
1384 }
1385 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1386 if let project::Event::RefreshInlayHints = event {
1387 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1388 };
1389 }));
1390 }
1391 }
1392
1393 let inlay_hint_settings = inlay_hint_settings(
1394 selections.newest_anchor().head(),
1395 &buffer.read(cx).snapshot(cx),
1396 cx,
1397 );
1398
1399 let focus_handle = cx.focus_handle();
1400 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1401 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1402
1403 let mut this = Self {
1404 handle: cx.view().downgrade(),
1405 focus_handle,
1406 buffer: buffer.clone(),
1407 display_map: display_map.clone(),
1408 selections,
1409 scroll_manager: ScrollManager::new(),
1410 columnar_selection_tail: None,
1411 add_selections_state: None,
1412 select_next_state: None,
1413 select_prev_state: None,
1414 selection_history: Default::default(),
1415 autoclose_regions: Default::default(),
1416 snippet_stack: Default::default(),
1417 select_larger_syntax_node_stack: Vec::new(),
1418 ime_transaction: Default::default(),
1419 active_diagnostics: None,
1420 soft_wrap_mode_override,
1421 completion_provider: project.clone().map(|project| Box::new(project) as _),
1422 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1423 project,
1424 blink_manager: blink_manager.clone(),
1425 show_local_selections: true,
1426 mode,
1427 show_gutter: mode == EditorMode::Full,
1428 show_wrap_guides: None,
1429 placeholder_text: None,
1430 highlighted_rows: None,
1431 background_highlights: Default::default(),
1432 inlay_background_highlights: Default::default(),
1433 nav_history: None,
1434 context_menu: RwLock::new(None),
1435 mouse_context_menu: None,
1436 completion_tasks: Default::default(),
1437 next_completion_id: 0,
1438 next_inlay_id: 0,
1439 available_code_actions: Default::default(),
1440 code_actions_task: Default::default(),
1441 document_highlights_task: Default::default(),
1442 pending_rename: Default::default(),
1443 searchable: true,
1444 cursor_shape: Default::default(),
1445 autoindent_mode: Some(AutoindentMode::EachLine),
1446 collapse_matches: false,
1447 workspace: None,
1448 keymap_context_layers: Default::default(),
1449 input_enabled: true,
1450 read_only: false,
1451 use_autoclose: true,
1452 leader_peer_id: None,
1453 remote_id: None,
1454 hover_state: Default::default(),
1455 link_go_to_definition_state: Default::default(),
1456 copilot_state: Default::default(),
1457 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1458 gutter_hovered: false,
1459 pixel_position_of_newest_cursor: None,
1460 gutter_width: Default::default(),
1461 style: None,
1462 show_cursor_names: false,
1463 hovered_cursors: Default::default(),
1464 editor_actions: Default::default(),
1465 show_copilot_suggestions: mode == EditorMode::Full,
1466 _subscriptions: vec![
1467 cx.observe(&buffer, Self::on_buffer_changed),
1468 cx.subscribe(&buffer, Self::on_buffer_event),
1469 cx.observe(&display_map, Self::on_display_map_changed),
1470 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1471 cx.observe_global::<SettingsStore>(Self::settings_changed),
1472 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1473 cx.observe_window_activation(|editor, cx| {
1474 let active = cx.is_window_active();
1475 editor.blink_manager.update(cx, |blink_manager, cx| {
1476 if active {
1477 blink_manager.enable(cx);
1478 } else {
1479 blink_manager.show_cursor(cx);
1480 blink_manager.disable(cx);
1481 }
1482 });
1483 }),
1484 ],
1485 };
1486
1487 this._subscriptions.extend(project_subscriptions);
1488
1489 this.end_selection(cx);
1490 this.scroll_manager.show_scrollbar(cx);
1491
1492 if mode == EditorMode::Full {
1493 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1494 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1495 }
1496
1497 this.report_editor_event("open", None, cx);
1498 this
1499 }
1500
1501 fn key_context(&self, cx: &AppContext) -> KeyContext {
1502 let mut key_context = KeyContext::default();
1503 key_context.add("Editor");
1504 let mode = match self.mode {
1505 EditorMode::SingleLine => "single_line",
1506 EditorMode::AutoHeight { .. } => "auto_height",
1507 EditorMode::Full => "full",
1508 };
1509 key_context.set("mode", mode);
1510 if self.pending_rename.is_some() {
1511 key_context.add("renaming");
1512 }
1513 if self.context_menu_visible() {
1514 match self.context_menu.read().as_ref() {
1515 Some(ContextMenu::Completions(_)) => {
1516 key_context.add("menu");
1517 key_context.add("showing_completions")
1518 }
1519 Some(ContextMenu::CodeActions(_)) => {
1520 key_context.add("menu");
1521 key_context.add("showing_code_actions")
1522 }
1523 None => {}
1524 }
1525 }
1526
1527 for layer in self.keymap_context_layers.values() {
1528 key_context.extend(layer);
1529 }
1530
1531 if let Some(extension) = self
1532 .buffer
1533 .read(cx)
1534 .as_singleton()
1535 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1536 {
1537 key_context.set("extension", extension.to_string());
1538 }
1539
1540 key_context
1541 }
1542
1543 pub fn new_file(
1544 workspace: &mut Workspace,
1545 _: &workspace::NewFile,
1546 cx: &mut ViewContext<Workspace>,
1547 ) {
1548 let project = workspace.project().clone();
1549 if project.read(cx).is_remote() {
1550 cx.propagate();
1551 } else if let Some(buffer) = project
1552 .update(cx, |project, cx| project.create_buffer("", None, cx))
1553 .log_err()
1554 {
1555 workspace.add_item(
1556 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1557 cx,
1558 );
1559 }
1560 }
1561
1562 pub fn new_file_in_direction(
1563 workspace: &mut Workspace,
1564 action: &workspace::NewFileInDirection,
1565 cx: &mut ViewContext<Workspace>,
1566 ) {
1567 let project = workspace.project().clone();
1568 if project.read(cx).is_remote() {
1569 cx.propagate();
1570 } else if let Some(buffer) = project
1571 .update(cx, |project, cx| project.create_buffer("", None, cx))
1572 .log_err()
1573 {
1574 workspace.split_item(
1575 action.0,
1576 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1577 cx,
1578 );
1579 }
1580 }
1581
1582 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1583 self.buffer.read(cx).replica_id()
1584 }
1585
1586 pub fn leader_peer_id(&self) -> Option<PeerId> {
1587 self.leader_peer_id
1588 }
1589
1590 pub fn buffer(&self) -> &Model<MultiBuffer> {
1591 &self.buffer
1592 }
1593
1594 pub fn workspace(&self) -> Option<View<Workspace>> {
1595 self.workspace.as_ref()?.0.upgrade()
1596 }
1597
1598 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1599 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1600 }
1601
1602 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1603 self.buffer().read(cx).title(cx)
1604 }
1605
1606 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1607 EditorSnapshot {
1608 mode: self.mode,
1609 show_gutter: self.show_gutter,
1610 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1611 scroll_anchor: self.scroll_manager.anchor(),
1612 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1613 placeholder_text: self.placeholder_text.clone(),
1614 is_focused: self.focus_handle.is_focused(cx),
1615 }
1616 }
1617
1618 pub fn language_at<'a, T: ToOffset>(
1619 &self,
1620 point: T,
1621 cx: &'a AppContext,
1622 ) -> Option<Arc<Language>> {
1623 self.buffer.read(cx).language_at(point, cx)
1624 }
1625
1626 pub fn file_at<'a, T: ToOffset>(
1627 &self,
1628 point: T,
1629 cx: &'a AppContext,
1630 ) -> Option<Arc<dyn language::File>> {
1631 self.buffer.read(cx).read(cx).file_at(point).cloned()
1632 }
1633
1634 pub fn active_excerpt(
1635 &self,
1636 cx: &AppContext,
1637 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1638 self.buffer
1639 .read(cx)
1640 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1641 }
1642
1643 pub fn mode(&self) -> EditorMode {
1644 self.mode
1645 }
1646
1647 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1648 self.collaboration_hub.as_deref()
1649 }
1650
1651 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1652 self.collaboration_hub = Some(hub);
1653 }
1654
1655 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1656 self.completion_provider = Some(hub);
1657 }
1658
1659 pub fn placeholder_text(&self) -> Option<&str> {
1660 self.placeholder_text.as_deref()
1661 }
1662
1663 pub fn set_placeholder_text(
1664 &mut self,
1665 placeholder_text: impl Into<Arc<str>>,
1666 cx: &mut ViewContext<Self>,
1667 ) {
1668 let placeholder_text = Some(placeholder_text.into());
1669 if self.placeholder_text != placeholder_text {
1670 self.placeholder_text = placeholder_text;
1671 cx.notify();
1672 }
1673 }
1674
1675 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1676 self.cursor_shape = cursor_shape;
1677 cx.notify();
1678 }
1679
1680 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1681 self.collapse_matches = collapse_matches;
1682 }
1683
1684 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1685 if self.collapse_matches {
1686 return range.start..range.start;
1687 }
1688 range.clone()
1689 }
1690
1691 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1692 if self.display_map.read(cx).clip_at_line_ends != clip {
1693 self.display_map
1694 .update(cx, |map, _| map.clip_at_line_ends = clip);
1695 }
1696 }
1697
1698 pub fn set_keymap_context_layer<Tag: 'static>(
1699 &mut self,
1700 context: KeyContext,
1701 cx: &mut ViewContext<Self>,
1702 ) {
1703 self.keymap_context_layers
1704 .insert(TypeId::of::<Tag>(), context);
1705 cx.notify();
1706 }
1707
1708 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1709 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1710 cx.notify();
1711 }
1712
1713 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1714 self.input_enabled = input_enabled;
1715 }
1716
1717 pub fn set_autoindent(&mut self, autoindent: bool) {
1718 if autoindent {
1719 self.autoindent_mode = Some(AutoindentMode::EachLine);
1720 } else {
1721 self.autoindent_mode = None;
1722 }
1723 }
1724
1725 pub fn read_only(&self, cx: &AppContext) -> bool {
1726 self.read_only || self.buffer.read(cx).read_only()
1727 }
1728
1729 pub fn set_read_only(&mut self, read_only: bool) {
1730 self.read_only = read_only;
1731 }
1732
1733 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1734 self.use_autoclose = autoclose;
1735 }
1736
1737 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1738 self.show_copilot_suggestions = show_copilot_suggestions;
1739 }
1740
1741 fn selections_did_change(
1742 &mut self,
1743 local: bool,
1744 old_cursor_position: &Anchor,
1745 cx: &mut ViewContext<Self>,
1746 ) {
1747 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1748 self.buffer.update(cx, |buffer, cx| {
1749 buffer.set_active_selections(
1750 &self.selections.disjoint_anchors(),
1751 self.selections.line_mode,
1752 self.cursor_shape,
1753 cx,
1754 )
1755 });
1756 }
1757
1758 let display_map = self
1759 .display_map
1760 .update(cx, |display_map, cx| display_map.snapshot(cx));
1761 let buffer = &display_map.buffer_snapshot;
1762 self.add_selections_state = None;
1763 self.select_next_state = None;
1764 self.select_prev_state = None;
1765 self.select_larger_syntax_node_stack.clear();
1766 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1767 self.snippet_stack
1768 .invalidate(&self.selections.disjoint_anchors(), buffer);
1769 self.take_rename(false, cx);
1770
1771 let new_cursor_position = self.selections.newest_anchor().head();
1772
1773 self.push_to_nav_history(
1774 old_cursor_position.clone(),
1775 Some(new_cursor_position.to_point(buffer)),
1776 cx,
1777 );
1778
1779 if local {
1780 let new_cursor_position = self.selections.newest_anchor().head();
1781 let mut context_menu = self.context_menu.write();
1782 let completion_menu = match context_menu.as_ref() {
1783 Some(ContextMenu::Completions(menu)) => Some(menu),
1784
1785 _ => {
1786 *context_menu = None;
1787 None
1788 }
1789 };
1790
1791 if let Some(completion_menu) = completion_menu {
1792 let cursor_position = new_cursor_position.to_offset(buffer);
1793 let (word_range, kind) =
1794 buffer.surrounding_word(completion_menu.initial_position.clone());
1795 if kind == Some(CharKind::Word)
1796 && word_range.to_inclusive().contains(&cursor_position)
1797 {
1798 let mut completion_menu = completion_menu.clone();
1799 drop(context_menu);
1800
1801 let query = Self::completion_query(buffer, cursor_position);
1802 cx.spawn(move |this, mut cx| async move {
1803 completion_menu
1804 .filter(query.as_deref(), cx.background_executor().clone())
1805 .await;
1806
1807 this.update(&mut cx, |this, cx| {
1808 let mut context_menu = this.context_menu.write();
1809 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1810 return;
1811 };
1812
1813 if menu.id > completion_menu.id {
1814 return;
1815 }
1816
1817 *context_menu = Some(ContextMenu::Completions(completion_menu));
1818 drop(context_menu);
1819 cx.notify();
1820 })
1821 })
1822 .detach();
1823
1824 self.show_completions(&ShowCompletions, cx);
1825 } else {
1826 drop(context_menu);
1827 self.hide_context_menu(cx);
1828 }
1829 } else {
1830 drop(context_menu);
1831 }
1832
1833 hide_hover(self, cx);
1834
1835 if old_cursor_position.to_display_point(&display_map).row()
1836 != new_cursor_position.to_display_point(&display_map).row()
1837 {
1838 self.available_code_actions.take();
1839 }
1840 self.refresh_code_actions(cx);
1841 self.refresh_document_highlights(cx);
1842 refresh_matching_bracket_highlights(self, cx);
1843 self.discard_copilot_suggestion(cx);
1844 }
1845
1846 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1847 cx.emit(EditorEvent::SelectionsChanged { local });
1848
1849 if self.selections.disjoint_anchors().len() == 1 {
1850 cx.emit(SearchEvent::ActiveMatchChanged)
1851 }
1852
1853 cx.notify();
1854 }
1855
1856 pub fn change_selections<R>(
1857 &mut self,
1858 autoscroll: Option<Autoscroll>,
1859 cx: &mut ViewContext<Self>,
1860 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1861 ) -> R {
1862 let old_cursor_position = self.selections.newest_anchor().head();
1863 self.push_to_selection_history();
1864
1865 let (changed, result) = self.selections.change_with(cx, change);
1866
1867 if changed {
1868 if let Some(autoscroll) = autoscroll {
1869 self.request_autoscroll(autoscroll, cx);
1870 }
1871 self.selections_did_change(true, &old_cursor_position, cx);
1872 }
1873
1874 result
1875 }
1876
1877 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1878 where
1879 I: IntoIterator<Item = (Range<S>, T)>,
1880 S: ToOffset,
1881 T: Into<Arc<str>>,
1882 {
1883 if self.read_only(cx) {
1884 return;
1885 }
1886
1887 self.buffer
1888 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1889 }
1890
1891 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1892 where
1893 I: IntoIterator<Item = (Range<S>, T)>,
1894 S: ToOffset,
1895 T: Into<Arc<str>>,
1896 {
1897 if self.read_only(cx) {
1898 return;
1899 }
1900
1901 self.buffer.update(cx, |buffer, cx| {
1902 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1903 });
1904 }
1905
1906 pub fn edit_with_block_indent<I, S, T>(
1907 &mut self,
1908 edits: I,
1909 original_indent_columns: Vec<u32>,
1910 cx: &mut ViewContext<Self>,
1911 ) where
1912 I: IntoIterator<Item = (Range<S>, T)>,
1913 S: ToOffset,
1914 T: Into<Arc<str>>,
1915 {
1916 if self.read_only(cx) {
1917 return;
1918 }
1919
1920 self.buffer.update(cx, |buffer, cx| {
1921 buffer.edit(
1922 edits,
1923 Some(AutoindentMode::Block {
1924 original_indent_columns,
1925 }),
1926 cx,
1927 )
1928 });
1929 }
1930
1931 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1932 self.hide_context_menu(cx);
1933
1934 match phase {
1935 SelectPhase::Begin {
1936 position,
1937 add,
1938 click_count,
1939 } => self.begin_selection(position, add, click_count, cx),
1940 SelectPhase::BeginColumnar {
1941 position,
1942 goal_column,
1943 } => self.begin_columnar_selection(position, goal_column, cx),
1944 SelectPhase::Extend {
1945 position,
1946 click_count,
1947 } => self.extend_selection(position, click_count, cx),
1948 SelectPhase::Update {
1949 position,
1950 goal_column,
1951 scroll_delta,
1952 } => self.update_selection(position, goal_column, scroll_delta, cx),
1953 SelectPhase::End => self.end_selection(cx),
1954 }
1955 }
1956
1957 fn extend_selection(
1958 &mut self,
1959 position: DisplayPoint,
1960 click_count: usize,
1961 cx: &mut ViewContext<Self>,
1962 ) {
1963 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1964 let tail = self.selections.newest::<usize>(cx).tail();
1965 self.begin_selection(position, false, click_count, cx);
1966
1967 let position = position.to_offset(&display_map, Bias::Left);
1968 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1969
1970 let mut pending_selection = self
1971 .selections
1972 .pending_anchor()
1973 .expect("extend_selection not called with pending selection");
1974 if position >= tail {
1975 pending_selection.start = tail_anchor;
1976 } else {
1977 pending_selection.end = tail_anchor;
1978 pending_selection.reversed = true;
1979 }
1980
1981 let mut pending_mode = self.selections.pending_mode().unwrap();
1982 match &mut pending_mode {
1983 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
1984 _ => {}
1985 }
1986
1987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
1988 s.set_pending(pending_selection, pending_mode)
1989 });
1990 }
1991
1992 fn begin_selection(
1993 &mut self,
1994 position: DisplayPoint,
1995 add: bool,
1996 click_count: usize,
1997 cx: &mut ViewContext<Self>,
1998 ) {
1999 if !self.focus_handle.is_focused(cx) {
2000 cx.focus(&self.focus_handle);
2001 }
2002
2003 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2004 let buffer = &display_map.buffer_snapshot;
2005 let newest_selection = self.selections.newest_anchor().clone();
2006 let position = display_map.clip_point(position, Bias::Left);
2007
2008 let start;
2009 let end;
2010 let mode;
2011 let auto_scroll;
2012 match click_count {
2013 1 => {
2014 start = buffer.anchor_before(position.to_point(&display_map));
2015 end = start.clone();
2016 mode = SelectMode::Character;
2017 auto_scroll = true;
2018 }
2019 2 => {
2020 let range = movement::surrounding_word(&display_map, position);
2021 start = buffer.anchor_before(range.start.to_point(&display_map));
2022 end = buffer.anchor_before(range.end.to_point(&display_map));
2023 mode = SelectMode::Word(start.clone()..end.clone());
2024 auto_scroll = true;
2025 }
2026 3 => {
2027 let position = display_map
2028 .clip_point(position, Bias::Left)
2029 .to_point(&display_map);
2030 let line_start = display_map.prev_line_boundary(position).0;
2031 let next_line_start = buffer.clip_point(
2032 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2033 Bias::Left,
2034 );
2035 start = buffer.anchor_before(line_start);
2036 end = buffer.anchor_before(next_line_start);
2037 mode = SelectMode::Line(start.clone()..end.clone());
2038 auto_scroll = true;
2039 }
2040 _ => {
2041 start = buffer.anchor_before(0);
2042 end = buffer.anchor_before(buffer.len());
2043 mode = SelectMode::All;
2044 auto_scroll = false;
2045 }
2046 }
2047
2048 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2049 if !add {
2050 s.clear_disjoint();
2051 } else if click_count > 1 {
2052 s.delete(newest_selection.id)
2053 }
2054
2055 s.set_pending_anchor_range(start..end, mode);
2056 });
2057 }
2058
2059 fn begin_columnar_selection(
2060 &mut self,
2061 position: DisplayPoint,
2062 goal_column: u32,
2063 cx: &mut ViewContext<Self>,
2064 ) {
2065 if !self.focus_handle.is_focused(cx) {
2066 cx.focus(&self.focus_handle);
2067 }
2068
2069 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2070 let tail = self.selections.newest::<Point>(cx).tail();
2071 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2072
2073 self.select_columns(
2074 tail.to_display_point(&display_map),
2075 position,
2076 goal_column,
2077 &display_map,
2078 cx,
2079 );
2080 }
2081
2082 fn update_selection(
2083 &mut self,
2084 position: DisplayPoint,
2085 goal_column: u32,
2086 scroll_delta: gpui::Point<f32>,
2087 cx: &mut ViewContext<Self>,
2088 ) {
2089 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2090
2091 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2092 let tail = tail.to_display_point(&display_map);
2093 self.select_columns(tail, position, goal_column, &display_map, cx);
2094 } else if let Some(mut pending) = self.selections.pending_anchor() {
2095 let buffer = self.buffer.read(cx).snapshot(cx);
2096 let head;
2097 let tail;
2098 let mode = self.selections.pending_mode().unwrap();
2099 match &mode {
2100 SelectMode::Character => {
2101 head = position.to_point(&display_map);
2102 tail = pending.tail().to_point(&buffer);
2103 }
2104 SelectMode::Word(original_range) => {
2105 let original_display_range = original_range.start.to_display_point(&display_map)
2106 ..original_range.end.to_display_point(&display_map);
2107 let original_buffer_range = original_display_range.start.to_point(&display_map)
2108 ..original_display_range.end.to_point(&display_map);
2109 if movement::is_inside_word(&display_map, position)
2110 || original_display_range.contains(&position)
2111 {
2112 let word_range = movement::surrounding_word(&display_map, position);
2113 if word_range.start < original_display_range.start {
2114 head = word_range.start.to_point(&display_map);
2115 } else {
2116 head = word_range.end.to_point(&display_map);
2117 }
2118 } else {
2119 head = position.to_point(&display_map);
2120 }
2121
2122 if head <= original_buffer_range.start {
2123 tail = original_buffer_range.end;
2124 } else {
2125 tail = original_buffer_range.start;
2126 }
2127 }
2128 SelectMode::Line(original_range) => {
2129 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2130
2131 let position = display_map
2132 .clip_point(position, Bias::Left)
2133 .to_point(&display_map);
2134 let line_start = display_map.prev_line_boundary(position).0;
2135 let next_line_start = buffer.clip_point(
2136 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2137 Bias::Left,
2138 );
2139
2140 if line_start < original_range.start {
2141 head = line_start
2142 } else {
2143 head = next_line_start
2144 }
2145
2146 if head <= original_range.start {
2147 tail = original_range.end;
2148 } else {
2149 tail = original_range.start;
2150 }
2151 }
2152 SelectMode::All => {
2153 return;
2154 }
2155 };
2156
2157 if head < tail {
2158 pending.start = buffer.anchor_before(head);
2159 pending.end = buffer.anchor_before(tail);
2160 pending.reversed = true;
2161 } else {
2162 pending.start = buffer.anchor_before(tail);
2163 pending.end = buffer.anchor_before(head);
2164 pending.reversed = false;
2165 }
2166
2167 self.change_selections(None, cx, |s| {
2168 s.set_pending(pending, mode);
2169 });
2170 } else {
2171 log::error!("update_selection dispatched with no pending selection");
2172 return;
2173 }
2174
2175 self.apply_scroll_delta(scroll_delta, cx);
2176 cx.notify();
2177 }
2178
2179 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2180 self.columnar_selection_tail.take();
2181 if self.selections.pending_anchor().is_some() {
2182 let selections = self.selections.all::<usize>(cx);
2183 self.change_selections(None, cx, |s| {
2184 s.select(selections);
2185 s.clear_pending();
2186 });
2187 }
2188 }
2189
2190 fn select_columns(
2191 &mut self,
2192 tail: DisplayPoint,
2193 head: DisplayPoint,
2194 goal_column: u32,
2195 display_map: &DisplaySnapshot,
2196 cx: &mut ViewContext<Self>,
2197 ) {
2198 let start_row = cmp::min(tail.row(), head.row());
2199 let end_row = cmp::max(tail.row(), head.row());
2200 let start_column = cmp::min(tail.column(), goal_column);
2201 let end_column = cmp::max(tail.column(), goal_column);
2202 let reversed = start_column < tail.column();
2203
2204 let selection_ranges = (start_row..=end_row)
2205 .filter_map(|row| {
2206 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2207 let start = display_map
2208 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2209 .to_point(display_map);
2210 let end = display_map
2211 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2212 .to_point(display_map);
2213 if reversed {
2214 Some(end..start)
2215 } else {
2216 Some(start..end)
2217 }
2218 } else {
2219 None
2220 }
2221 })
2222 .collect::<Vec<_>>();
2223
2224 self.change_selections(None, cx, |s| {
2225 s.select_ranges(selection_ranges);
2226 });
2227 cx.notify();
2228 }
2229
2230 pub fn has_pending_nonempty_selection(&self) -> bool {
2231 let pending_nonempty_selection = match self.selections.pending_anchor() {
2232 Some(Selection { start, end, .. }) => start != end,
2233 None => false,
2234 };
2235 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2236 }
2237
2238 pub fn has_pending_selection(&self) -> bool {
2239 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2240 }
2241
2242 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2243 if self.take_rename(false, cx).is_some() {
2244 return;
2245 }
2246
2247 if hide_hover(self, cx) {
2248 return;
2249 }
2250
2251 if self.hide_context_menu(cx).is_some() {
2252 return;
2253 }
2254
2255 if self.discard_copilot_suggestion(cx) {
2256 return;
2257 }
2258
2259 if self.snippet_stack.pop().is_some() {
2260 return;
2261 }
2262
2263 if self.mode == EditorMode::Full {
2264 if self.active_diagnostics.is_some() {
2265 self.dismiss_diagnostics(cx);
2266 return;
2267 }
2268
2269 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2270 return;
2271 }
2272 }
2273
2274 cx.propagate();
2275 }
2276
2277 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2278 let text: Arc<str> = text.into();
2279
2280 if self.read_only(cx) {
2281 return;
2282 }
2283
2284 let selections = self.selections.all_adjusted(cx);
2285 let mut brace_inserted = false;
2286 let mut edits = Vec::new();
2287 let mut new_selections = Vec::with_capacity(selections.len());
2288 let mut new_autoclose_regions = Vec::new();
2289 let snapshot = self.buffer.read(cx).read(cx);
2290
2291 for (selection, autoclose_region) in
2292 self.selections_with_autoclose_regions(selections, &snapshot)
2293 {
2294 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2295 // Determine if the inserted text matches the opening or closing
2296 // bracket of any of this language's bracket pairs.
2297 let mut bracket_pair = None;
2298 let mut is_bracket_pair_start = false;
2299 if !text.is_empty() {
2300 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2301 // and they are removing the character that triggered IME popup.
2302 for (pair, enabled) in scope.brackets() {
2303 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2304 bracket_pair = Some(pair.clone());
2305 is_bracket_pair_start = true;
2306 break;
2307 } else if pair.end.as_str() == text.as_ref() {
2308 bracket_pair = Some(pair.clone());
2309 break;
2310 }
2311 }
2312 }
2313
2314 if let Some(bracket_pair) = bracket_pair {
2315 if selection.is_empty() {
2316 if is_bracket_pair_start {
2317 let prefix_len = bracket_pair.start.len() - text.len();
2318
2319 // If the inserted text is a suffix of an opening bracket and the
2320 // selection is preceded by the rest of the opening bracket, then
2321 // insert the closing bracket.
2322 let following_text_allows_autoclose = snapshot
2323 .chars_at(selection.start)
2324 .next()
2325 .map_or(true, |c| scope.should_autoclose_before(c));
2326 let preceding_text_matches_prefix = prefix_len == 0
2327 || (selection.start.column >= (prefix_len as u32)
2328 && snapshot.contains_str_at(
2329 Point::new(
2330 selection.start.row,
2331 selection.start.column - (prefix_len as u32),
2332 ),
2333 &bracket_pair.start[..prefix_len],
2334 ));
2335 let autoclose = self.use_autoclose
2336 && snapshot.settings_at(selection.start, cx).use_autoclose;
2337 if autoclose
2338 && following_text_allows_autoclose
2339 && preceding_text_matches_prefix
2340 {
2341 let anchor = snapshot.anchor_before(selection.end);
2342 new_selections.push((selection.map(|_| anchor), text.len()));
2343 new_autoclose_regions.push((
2344 anchor,
2345 text.len(),
2346 selection.id,
2347 bracket_pair.clone(),
2348 ));
2349 edits.push((
2350 selection.range(),
2351 format!("{}{}", text, bracket_pair.end).into(),
2352 ));
2353 brace_inserted = true;
2354 continue;
2355 }
2356 }
2357
2358 if let Some(region) = autoclose_region {
2359 // If the selection is followed by an auto-inserted closing bracket,
2360 // then don't insert that closing bracket again; just move the selection
2361 // past the closing bracket.
2362 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2363 && text.as_ref() == region.pair.end.as_str();
2364 if should_skip {
2365 let anchor = snapshot.anchor_after(selection.end);
2366 new_selections
2367 .push((selection.map(|_| anchor), region.pair.end.len()));
2368 continue;
2369 }
2370 }
2371 }
2372 // If an opening bracket is 1 character long and is typed while
2373 // text is selected, then surround that text with the bracket pair.
2374 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2375 edits.push((selection.start..selection.start, text.clone()));
2376 edits.push((
2377 selection.end..selection.end,
2378 bracket_pair.end.as_str().into(),
2379 ));
2380 brace_inserted = true;
2381 new_selections.push((
2382 Selection {
2383 id: selection.id,
2384 start: snapshot.anchor_after(selection.start),
2385 end: snapshot.anchor_before(selection.end),
2386 reversed: selection.reversed,
2387 goal: selection.goal,
2388 },
2389 0,
2390 ));
2391 continue;
2392 }
2393 }
2394 }
2395
2396 // If not handling any auto-close operation, then just replace the selected
2397 // text with the given input and move the selection to the end of the
2398 // newly inserted text.
2399 let anchor = snapshot.anchor_after(selection.end);
2400 new_selections.push((selection.map(|_| anchor), 0));
2401 edits.push((selection.start..selection.end, text.clone()));
2402 }
2403
2404 drop(snapshot);
2405 self.transact(cx, |this, cx| {
2406 this.buffer.update(cx, |buffer, cx| {
2407 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2408 });
2409
2410 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2411 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2412 let snapshot = this.buffer.read(cx).read(cx);
2413 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2414 .zip(new_selection_deltas)
2415 .map(|(selection, delta)| Selection {
2416 id: selection.id,
2417 start: selection.start + delta,
2418 end: selection.end + delta,
2419 reversed: selection.reversed,
2420 goal: SelectionGoal::None,
2421 })
2422 .collect::<Vec<_>>();
2423
2424 let mut i = 0;
2425 for (position, delta, selection_id, pair) in new_autoclose_regions {
2426 let position = position.to_offset(&snapshot) + delta;
2427 let start = snapshot.anchor_before(position);
2428 let end = snapshot.anchor_after(position);
2429 while let Some(existing_state) = this.autoclose_regions.get(i) {
2430 match existing_state.range.start.cmp(&start, &snapshot) {
2431 Ordering::Less => i += 1,
2432 Ordering::Greater => break,
2433 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2434 Ordering::Less => i += 1,
2435 Ordering::Equal => break,
2436 Ordering::Greater => break,
2437 },
2438 }
2439 }
2440 this.autoclose_regions.insert(
2441 i,
2442 AutocloseRegion {
2443 selection_id,
2444 range: start..end,
2445 pair,
2446 },
2447 );
2448 }
2449
2450 drop(snapshot);
2451 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2452 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2453
2454 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2455 if let Some(on_type_format_task) =
2456 this.trigger_on_type_formatting(text.to_string(), cx)
2457 {
2458 on_type_format_task.detach_and_log_err(cx);
2459 }
2460 }
2461
2462 if had_active_copilot_suggestion {
2463 this.refresh_copilot_suggestions(true, cx);
2464 if !this.has_active_copilot_suggestion(cx) {
2465 this.trigger_completion_on_input(&text, cx);
2466 }
2467 } else {
2468 this.trigger_completion_on_input(&text, cx);
2469 this.refresh_copilot_suggestions(true, cx);
2470 }
2471 });
2472 }
2473
2474 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2475 self.transact(cx, |this, cx| {
2476 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2477 let selections = this.selections.all::<usize>(cx);
2478 let multi_buffer = this.buffer.read(cx);
2479 let buffer = multi_buffer.snapshot(cx);
2480 selections
2481 .iter()
2482 .map(|selection| {
2483 let start_point = selection.start.to_point(&buffer);
2484 let mut indent = buffer.indent_size_for_line(start_point.row);
2485 indent.len = cmp::min(indent.len, start_point.column);
2486 let start = selection.start;
2487 let end = selection.end;
2488 let is_cursor = start == end;
2489 let language_scope = buffer.language_scope_at(start);
2490 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2491 &language_scope
2492 {
2493 let leading_whitespace_len = buffer
2494 .reversed_chars_at(start)
2495 .take_while(|c| c.is_whitespace() && *c != '\n')
2496 .map(|c| c.len_utf8())
2497 .sum::<usize>();
2498
2499 let trailing_whitespace_len = buffer
2500 .chars_at(end)
2501 .take_while(|c| c.is_whitespace() && *c != '\n')
2502 .map(|c| c.len_utf8())
2503 .sum::<usize>();
2504
2505 let insert_extra_newline =
2506 language.brackets().any(|(pair, enabled)| {
2507 let pair_start = pair.start.trim_end();
2508 let pair_end = pair.end.trim_start();
2509
2510 enabled
2511 && pair.newline
2512 && buffer.contains_str_at(
2513 end + trailing_whitespace_len,
2514 pair_end,
2515 )
2516 && buffer.contains_str_at(
2517 (start - leading_whitespace_len)
2518 .saturating_sub(pair_start.len()),
2519 pair_start,
2520 )
2521 });
2522 // Comment extension on newline is allowed only for cursor selections
2523 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2524 let is_comment_extension_enabled =
2525 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2526 is_cursor && is_comment_extension_enabled
2527 });
2528 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2529 let max_len_of_delimiter =
2530 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2531 let (snapshot, range) =
2532 buffer.buffer_line_for_row(start_point.row)?;
2533
2534 let mut index_of_first_non_whitespace = 0;
2535 let comment_candidate = snapshot
2536 .chars_for_range(range)
2537 .skip_while(|c| {
2538 let should_skip = c.is_whitespace();
2539 if should_skip {
2540 index_of_first_non_whitespace += 1;
2541 }
2542 should_skip
2543 })
2544 .take(max_len_of_delimiter)
2545 .collect::<String>();
2546 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2547 comment_candidate.starts_with(comment_prefix.as_ref())
2548 })?;
2549 let cursor_is_placed_after_comment_marker =
2550 index_of_first_non_whitespace + comment_prefix.len()
2551 <= start_point.column as usize;
2552 if cursor_is_placed_after_comment_marker {
2553 Some(comment_prefix.clone())
2554 } else {
2555 None
2556 }
2557 };
2558 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2559 get_comment_delimiter(delimiters)
2560 } else {
2561 None
2562 };
2563 (comment_delimiter, insert_extra_newline)
2564 } else {
2565 (None, false)
2566 };
2567
2568 let capacity_for_delimiter = comment_delimiter
2569 .as_deref()
2570 .map(str::len)
2571 .unwrap_or_default();
2572 let mut new_text =
2573 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2574 new_text.push_str("\n");
2575 new_text.extend(indent.chars());
2576 if let Some(delimiter) = &comment_delimiter {
2577 new_text.push_str(&delimiter);
2578 }
2579 if insert_extra_newline {
2580 new_text = new_text.repeat(2);
2581 }
2582
2583 let anchor = buffer.anchor_after(end);
2584 let new_selection = selection.map(|_| anchor);
2585 (
2586 (start..end, new_text),
2587 (insert_extra_newline, new_selection),
2588 )
2589 })
2590 .unzip()
2591 };
2592
2593 this.edit_with_autoindent(edits, cx);
2594 let buffer = this.buffer.read(cx).snapshot(cx);
2595 let new_selections = selection_fixup_info
2596 .into_iter()
2597 .map(|(extra_newline_inserted, new_selection)| {
2598 let mut cursor = new_selection.end.to_point(&buffer);
2599 if extra_newline_inserted {
2600 cursor.row -= 1;
2601 cursor.column = buffer.line_len(cursor.row);
2602 }
2603 new_selection.map(|_| cursor)
2604 })
2605 .collect();
2606
2607 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2608 this.refresh_copilot_suggestions(true, cx);
2609 });
2610 }
2611
2612 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2613 let buffer = self.buffer.read(cx);
2614 let snapshot = buffer.snapshot(cx);
2615
2616 let mut edits = Vec::new();
2617 let mut rows = Vec::new();
2618 let mut rows_inserted = 0;
2619
2620 for selection in self.selections.all_adjusted(cx) {
2621 let cursor = selection.head();
2622 let row = cursor.row;
2623
2624 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2625
2626 let newline = "\n".to_string();
2627 edits.push((start_of_line..start_of_line, newline));
2628
2629 rows.push(row + rows_inserted);
2630 rows_inserted += 1;
2631 }
2632
2633 self.transact(cx, |editor, cx| {
2634 editor.edit(edits, cx);
2635
2636 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2637 let mut index = 0;
2638 s.move_cursors_with(|map, _, _| {
2639 let row = rows[index];
2640 index += 1;
2641
2642 let point = Point::new(row, 0);
2643 let boundary = map.next_line_boundary(point).1;
2644 let clipped = map.clip_point(boundary, Bias::Left);
2645
2646 (clipped, SelectionGoal::None)
2647 });
2648 });
2649
2650 let mut indent_edits = Vec::new();
2651 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2652 for row in rows {
2653 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2654 for (row, indent) in indents {
2655 if indent.len == 0 {
2656 continue;
2657 }
2658
2659 let text = match indent.kind {
2660 IndentKind::Space => " ".repeat(indent.len as usize),
2661 IndentKind::Tab => "\t".repeat(indent.len as usize),
2662 };
2663 let point = Point::new(row, 0);
2664 indent_edits.push((point..point, text));
2665 }
2666 }
2667 editor.edit(indent_edits, cx);
2668 });
2669 }
2670
2671 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2672 let buffer = self.buffer.read(cx);
2673 let snapshot = buffer.snapshot(cx);
2674
2675 let mut edits = Vec::new();
2676 let mut rows = Vec::new();
2677 let mut rows_inserted = 0;
2678
2679 for selection in self.selections.all_adjusted(cx) {
2680 let cursor = selection.head();
2681 let row = cursor.row;
2682
2683 let point = Point::new(row + 1, 0);
2684 let start_of_line = snapshot.clip_point(point, Bias::Left);
2685
2686 let newline = "\n".to_string();
2687 edits.push((start_of_line..start_of_line, newline));
2688
2689 rows_inserted += 1;
2690 rows.push(row + rows_inserted);
2691 }
2692
2693 self.transact(cx, |editor, cx| {
2694 editor.edit(edits, cx);
2695
2696 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2697 let mut index = 0;
2698 s.move_cursors_with(|map, _, _| {
2699 let row = rows[index];
2700 index += 1;
2701
2702 let point = Point::new(row, 0);
2703 let boundary = map.next_line_boundary(point).1;
2704 let clipped = map.clip_point(boundary, Bias::Left);
2705
2706 (clipped, SelectionGoal::None)
2707 });
2708 });
2709
2710 let mut indent_edits = Vec::new();
2711 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2712 for row in rows {
2713 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2714 for (row, indent) in indents {
2715 if indent.len == 0 {
2716 continue;
2717 }
2718
2719 let text = match indent.kind {
2720 IndentKind::Space => " ".repeat(indent.len as usize),
2721 IndentKind::Tab => "\t".repeat(indent.len as usize),
2722 };
2723 let point = Point::new(row, 0);
2724 indent_edits.push((point..point, text));
2725 }
2726 }
2727 editor.edit(indent_edits, cx);
2728 });
2729 }
2730
2731 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2732 self.insert_with_autoindent_mode(
2733 text,
2734 Some(AutoindentMode::Block {
2735 original_indent_columns: Vec::new(),
2736 }),
2737 cx,
2738 );
2739 }
2740
2741 fn insert_with_autoindent_mode(
2742 &mut self,
2743 text: &str,
2744 autoindent_mode: Option<AutoindentMode>,
2745 cx: &mut ViewContext<Self>,
2746 ) {
2747 if self.read_only(cx) {
2748 return;
2749 }
2750
2751 let text: Arc<str> = text.into();
2752 self.transact(cx, |this, cx| {
2753 let old_selections = this.selections.all_adjusted(cx);
2754 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2755 let anchors = {
2756 let snapshot = buffer.read(cx);
2757 old_selections
2758 .iter()
2759 .map(|s| {
2760 let anchor = snapshot.anchor_after(s.head());
2761 s.map(|_| anchor)
2762 })
2763 .collect::<Vec<_>>()
2764 };
2765 buffer.edit(
2766 old_selections
2767 .iter()
2768 .map(|s| (s.start..s.end, text.clone())),
2769 autoindent_mode,
2770 cx,
2771 );
2772 anchors
2773 });
2774
2775 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2776 s.select_anchors(selection_anchors);
2777 })
2778 });
2779 }
2780
2781 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2782 if !EditorSettings::get_global(cx).show_completions_on_input {
2783 return;
2784 }
2785
2786 let selection = self.selections.newest_anchor();
2787 if self
2788 .buffer
2789 .read(cx)
2790 .is_completion_trigger(selection.head(), text, cx)
2791 {
2792 self.show_completions(&ShowCompletions, cx);
2793 } else {
2794 self.hide_context_menu(cx);
2795 }
2796 }
2797
2798 /// If any empty selections is touching the start of its innermost containing autoclose
2799 /// region, expand it to select the brackets.
2800 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2801 let selections = self.selections.all::<usize>(cx);
2802 let buffer = self.buffer.read(cx).read(cx);
2803 let mut new_selections = Vec::new();
2804 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2805 if let (Some(region), true) = (region, selection.is_empty()) {
2806 let mut range = region.range.to_offset(&buffer);
2807 if selection.start == range.start {
2808 if range.start >= region.pair.start.len() {
2809 range.start -= region.pair.start.len();
2810 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2811 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2812 range.end += region.pair.end.len();
2813 selection.start = range.start;
2814 selection.end = range.end;
2815 }
2816 }
2817 }
2818 }
2819 }
2820 new_selections.push(selection);
2821 }
2822
2823 drop(buffer);
2824 self.change_selections(None, cx, |selections| selections.select(new_selections));
2825 }
2826
2827 /// Iterate the given selections, and for each one, find the smallest surrounding
2828 /// autoclose region. This uses the ordering of the selections and the autoclose
2829 /// regions to avoid repeated comparisons.
2830 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2831 &'a self,
2832 selections: impl IntoIterator<Item = Selection<D>>,
2833 buffer: &'a MultiBufferSnapshot,
2834 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2835 let mut i = 0;
2836 let mut regions = self.autoclose_regions.as_slice();
2837 selections.into_iter().map(move |selection| {
2838 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2839
2840 let mut enclosing = None;
2841 while let Some(pair_state) = regions.get(i) {
2842 if pair_state.range.end.to_offset(buffer) < range.start {
2843 regions = ®ions[i + 1..];
2844 i = 0;
2845 } else if pair_state.range.start.to_offset(buffer) > range.end {
2846 break;
2847 } else {
2848 if pair_state.selection_id == selection.id {
2849 enclosing = Some(pair_state);
2850 }
2851 i += 1;
2852 }
2853 }
2854
2855 (selection.clone(), enclosing)
2856 })
2857 }
2858
2859 /// Remove any autoclose regions that no longer contain their selection.
2860 fn invalidate_autoclose_regions(
2861 &mut self,
2862 mut selections: &[Selection<Anchor>],
2863 buffer: &MultiBufferSnapshot,
2864 ) {
2865 self.autoclose_regions.retain(|state| {
2866 let mut i = 0;
2867 while let Some(selection) = selections.get(i) {
2868 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2869 selections = &selections[1..];
2870 continue;
2871 }
2872 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2873 break;
2874 }
2875 if selection.id == state.selection_id {
2876 return true;
2877 } else {
2878 i += 1;
2879 }
2880 }
2881 false
2882 });
2883 }
2884
2885 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2886 let offset = position.to_offset(buffer);
2887 let (word_range, kind) = buffer.surrounding_word(offset);
2888 if offset > word_range.start && kind == Some(CharKind::Word) {
2889 Some(
2890 buffer
2891 .text_for_range(word_range.start..offset)
2892 .collect::<String>(),
2893 )
2894 } else {
2895 None
2896 }
2897 }
2898
2899 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2900 self.refresh_inlay_hints(
2901 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2902 cx,
2903 );
2904 }
2905
2906 pub fn inlay_hints_enabled(&self) -> bool {
2907 self.inlay_hint_cache.enabled
2908 }
2909
2910 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2911 if self.project.is_none() || self.mode != EditorMode::Full {
2912 return;
2913 }
2914
2915 let reason_description = reason.description();
2916 let (invalidate_cache, required_languages) = match reason {
2917 InlayHintRefreshReason::Toggle(enabled) => {
2918 self.inlay_hint_cache.enabled = enabled;
2919 if enabled {
2920 (InvalidationStrategy::RefreshRequested, None)
2921 } else {
2922 self.inlay_hint_cache.clear();
2923 self.splice_inlay_hints(
2924 self.visible_inlay_hints(cx)
2925 .iter()
2926 .map(|inlay| inlay.id)
2927 .collect(),
2928 Vec::new(),
2929 cx,
2930 );
2931 return;
2932 }
2933 }
2934 InlayHintRefreshReason::SettingsChange(new_settings) => {
2935 match self.inlay_hint_cache.update_settings(
2936 &self.buffer,
2937 new_settings,
2938 self.visible_inlay_hints(cx),
2939 cx,
2940 ) {
2941 ControlFlow::Break(Some(InlaySplice {
2942 to_remove,
2943 to_insert,
2944 })) => {
2945 self.splice_inlay_hints(to_remove, to_insert, cx);
2946 return;
2947 }
2948 ControlFlow::Break(None) => return,
2949 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2950 }
2951 }
2952 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2953 if let Some(InlaySplice {
2954 to_remove,
2955 to_insert,
2956 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2957 {
2958 self.splice_inlay_hints(to_remove, to_insert, cx);
2959 }
2960 return;
2961 }
2962 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2963 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2964 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2965 }
2966 InlayHintRefreshReason::RefreshRequested => {
2967 (InvalidationStrategy::RefreshRequested, None)
2968 }
2969 };
2970
2971 if let Some(InlaySplice {
2972 to_remove,
2973 to_insert,
2974 }) = self.inlay_hint_cache.spawn_hint_refresh(
2975 reason_description,
2976 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
2977 invalidate_cache,
2978 cx,
2979 ) {
2980 self.splice_inlay_hints(to_remove, to_insert, cx);
2981 }
2982 }
2983
2984 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
2985 self.display_map
2986 .read(cx)
2987 .current_inlays()
2988 .filter(move |inlay| {
2989 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
2990 })
2991 .cloned()
2992 .collect()
2993 }
2994
2995 pub fn excerpts_for_inlay_hints_query(
2996 &self,
2997 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
2998 cx: &mut ViewContext<Editor>,
2999 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3000 let Some(project) = self.project.as_ref() else {
3001 return HashMap::default();
3002 };
3003 let project = project.read(cx);
3004 let multi_buffer = self.buffer().read(cx);
3005 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3006 let multi_buffer_visible_start = self
3007 .scroll_manager
3008 .anchor()
3009 .anchor
3010 .to_point(&multi_buffer_snapshot);
3011 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3012 multi_buffer_visible_start
3013 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3014 Bias::Left,
3015 );
3016 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3017 multi_buffer
3018 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3019 .into_iter()
3020 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3021 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3022 let buffer = buffer_handle.read(cx);
3023 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3024 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3025 let worktree_entry = buffer_worktree
3026 .read(cx)
3027 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3028 if worktree_entry.is_ignored {
3029 return None;
3030 }
3031
3032 let language = buffer.language()?;
3033 if let Some(restrict_to_languages) = restrict_to_languages {
3034 if !restrict_to_languages.contains(language) {
3035 return None;
3036 }
3037 }
3038 Some((
3039 excerpt_id,
3040 (
3041 buffer_handle,
3042 buffer.version().clone(),
3043 excerpt_visible_range,
3044 ),
3045 ))
3046 })
3047 .collect()
3048 }
3049
3050 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3051 TextLayoutDetails {
3052 text_system: cx.text_system().clone(),
3053 editor_style: self.style.clone().unwrap(),
3054 rem_size: cx.rem_size(),
3055 }
3056 }
3057
3058 fn splice_inlay_hints(
3059 &self,
3060 to_remove: Vec<InlayId>,
3061 to_insert: Vec<Inlay>,
3062 cx: &mut ViewContext<Self>,
3063 ) {
3064 self.display_map.update(cx, |display_map, cx| {
3065 display_map.splice_inlays(to_remove, to_insert, cx);
3066 });
3067 cx.notify();
3068 }
3069
3070 fn trigger_on_type_formatting(
3071 &self,
3072 input: String,
3073 cx: &mut ViewContext<Self>,
3074 ) -> Option<Task<Result<()>>> {
3075 if input.len() != 1 {
3076 return None;
3077 }
3078
3079 let project = self.project.as_ref()?;
3080 let position = self.selections.newest_anchor().head();
3081 let (buffer, buffer_position) = self
3082 .buffer
3083 .read(cx)
3084 .text_anchor_for_position(position.clone(), cx)?;
3085
3086 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3087 // hence we do LSP request & edit on host side only — add formats to host's history.
3088 let push_to_lsp_host_history = true;
3089 // If this is not the host, append its history with new edits.
3090 let push_to_client_history = project.read(cx).is_remote();
3091
3092 let on_type_formatting = project.update(cx, |project, cx| {
3093 project.on_type_format(
3094 buffer.clone(),
3095 buffer_position,
3096 input,
3097 push_to_lsp_host_history,
3098 cx,
3099 )
3100 });
3101 Some(cx.spawn(|editor, mut cx| async move {
3102 if let Some(transaction) = on_type_formatting.await? {
3103 if push_to_client_history {
3104 buffer
3105 .update(&mut cx, |buffer, _| {
3106 buffer.push_transaction(transaction, Instant::now());
3107 })
3108 .ok();
3109 }
3110 editor.update(&mut cx, |editor, cx| {
3111 editor.refresh_document_highlights(cx);
3112 })?;
3113 }
3114 Ok(())
3115 }))
3116 }
3117
3118 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3119 if self.pending_rename.is_some() {
3120 return;
3121 }
3122
3123 let Some(provider) = self.completion_provider.as_ref() else {
3124 return;
3125 };
3126
3127 let position = self.selections.newest_anchor().head();
3128 let (buffer, buffer_position) = if let Some(output) = self
3129 .buffer
3130 .read(cx)
3131 .text_anchor_for_position(position.clone(), cx)
3132 {
3133 output
3134 } else {
3135 return;
3136 };
3137
3138 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3139 let completions = provider.completions(&buffer, buffer_position, cx);
3140
3141 let id = post_inc(&mut self.next_completion_id);
3142 let task = cx.spawn(|this, mut cx| {
3143 async move {
3144 let completions = completions.await.log_err();
3145 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3146 let mut menu = CompletionsMenu {
3147 id,
3148 initial_position: position,
3149 match_candidates: completions
3150 .iter()
3151 .enumerate()
3152 .map(|(id, completion)| {
3153 StringMatchCandidate::new(
3154 id,
3155 completion.label.text[completion.label.filter_range.clone()]
3156 .into(),
3157 )
3158 })
3159 .collect(),
3160 buffer,
3161 completions: Arc::new(RwLock::new(completions.into())),
3162 matches: Vec::new().into(),
3163 selected_item: 0,
3164 scroll_handle: UniformListScrollHandle::new(),
3165 };
3166 menu.filter(query.as_deref(), cx.background_executor().clone())
3167 .await;
3168
3169 if menu.matches.is_empty() {
3170 (None, None)
3171 } else {
3172 let pre_resolve_task = this
3173 .update(&mut cx, |editor, cx| {
3174 menu.pre_resolve_completion_documentation(editor, cx)
3175 })
3176 .ok()
3177 .flatten();
3178 (Some(menu), pre_resolve_task)
3179 }
3180 } else {
3181 (None, None)
3182 };
3183
3184 this.update(&mut cx, |this, cx| {
3185 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3186
3187 let mut context_menu = this.context_menu.write();
3188 match context_menu.as_ref() {
3189 None => {}
3190
3191 Some(ContextMenu::Completions(prev_menu)) => {
3192 if prev_menu.id > id {
3193 return;
3194 }
3195 }
3196
3197 _ => return,
3198 }
3199
3200 if this.focus_handle.is_focused(cx) && menu.is_some() {
3201 let menu = menu.unwrap();
3202 *context_menu = Some(ContextMenu::Completions(menu));
3203 drop(context_menu);
3204 this.discard_copilot_suggestion(cx);
3205 cx.notify();
3206 } else if this.completion_tasks.len() <= 1 {
3207 // If there are no more completion tasks and the last menu was
3208 // empty, we should hide it. If it was already hidden, we should
3209 // also show the copilot suggestion when available.
3210 drop(context_menu);
3211 if this.hide_context_menu(cx).is_none() {
3212 this.update_visible_copilot_suggestion(cx);
3213 }
3214 }
3215 })?;
3216
3217 if let Some(pre_resolve_task) = pre_resolve_task {
3218 pre_resolve_task.await;
3219 }
3220
3221 Ok::<_, anyhow::Error>(())
3222 }
3223 .log_err()
3224 });
3225
3226 self.completion_tasks.push((id, task));
3227 }
3228
3229 pub fn confirm_completion(
3230 &mut self,
3231 action: &ConfirmCompletion,
3232 cx: &mut ViewContext<Self>,
3233 ) -> Option<Task<Result<()>>> {
3234 use language::ToOffset as _;
3235
3236 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3237 menu
3238 } else {
3239 return None;
3240 };
3241
3242 let mat = completions_menu
3243 .matches
3244 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3245 let buffer_handle = completions_menu.buffer;
3246 let completions = completions_menu.completions.read();
3247 let completion = completions.get(mat.candidate_id)?;
3248 cx.stop_propagation();
3249
3250 let snippet;
3251 let text;
3252 if completion.is_snippet() {
3253 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3254 text = snippet.as_ref().unwrap().text.clone();
3255 } else {
3256 snippet = None;
3257 text = completion.new_text.clone();
3258 };
3259 let selections = self.selections.all::<usize>(cx);
3260 let buffer = buffer_handle.read(cx);
3261 let old_range = completion.old_range.to_offset(buffer);
3262 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3263
3264 let newest_selection = self.selections.newest_anchor();
3265 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3266 return None;
3267 }
3268
3269 let lookbehind = newest_selection
3270 .start
3271 .text_anchor
3272 .to_offset(buffer)
3273 .saturating_sub(old_range.start);
3274 let lookahead = old_range
3275 .end
3276 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3277 let mut common_prefix_len = old_text
3278 .bytes()
3279 .zip(text.bytes())
3280 .take_while(|(a, b)| a == b)
3281 .count();
3282
3283 let snapshot = self.buffer.read(cx).snapshot(cx);
3284 let mut range_to_replace: Option<Range<isize>> = None;
3285 let mut ranges = Vec::new();
3286 for selection in &selections {
3287 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3288 let start = selection.start.saturating_sub(lookbehind);
3289 let end = selection.end + lookahead;
3290 if selection.id == newest_selection.id {
3291 range_to_replace = Some(
3292 ((start + common_prefix_len) as isize - selection.start as isize)
3293 ..(end as isize - selection.start as isize),
3294 );
3295 }
3296 ranges.push(start + common_prefix_len..end);
3297 } else {
3298 common_prefix_len = 0;
3299 ranges.clear();
3300 ranges.extend(selections.iter().map(|s| {
3301 if s.id == newest_selection.id {
3302 range_to_replace = Some(
3303 old_range.start.to_offset_utf16(&snapshot).0 as isize
3304 - selection.start as isize
3305 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3306 - selection.start as isize,
3307 );
3308 old_range.clone()
3309 } else {
3310 s.start..s.end
3311 }
3312 }));
3313 break;
3314 }
3315 }
3316 let text = &text[common_prefix_len..];
3317
3318 cx.emit(EditorEvent::InputHandled {
3319 utf16_range_to_replace: range_to_replace,
3320 text: text.into(),
3321 });
3322
3323 self.transact(cx, |this, cx| {
3324 if let Some(mut snippet) = snippet {
3325 snippet.text = text.to_string();
3326 for tabstop in snippet.tabstops.iter_mut().flatten() {
3327 tabstop.start -= common_prefix_len as isize;
3328 tabstop.end -= common_prefix_len as isize;
3329 }
3330
3331 this.insert_snippet(&ranges, snippet, cx).log_err();
3332 } else {
3333 this.buffer.update(cx, |buffer, cx| {
3334 buffer.edit(
3335 ranges.iter().map(|range| (range.clone(), text)),
3336 this.autoindent_mode.clone(),
3337 cx,
3338 );
3339 });
3340 }
3341
3342 this.refresh_copilot_suggestions(true, cx);
3343 });
3344
3345 let provider = self.completion_provider.as_ref()?;
3346 let apply_edits = provider.apply_additional_edits_for_completion(
3347 buffer_handle,
3348 completion.clone(),
3349 true,
3350 cx,
3351 );
3352 Some(cx.foreground_executor().spawn(async move {
3353 apply_edits.await?;
3354 Ok(())
3355 }))
3356 }
3357
3358 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3359 let mut context_menu = self.context_menu.write();
3360 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3361 *context_menu = None;
3362 cx.notify();
3363 return;
3364 }
3365 drop(context_menu);
3366
3367 let deployed_from_indicator = action.deployed_from_indicator;
3368 let mut task = self.code_actions_task.take();
3369 cx.spawn(|this, mut cx| async move {
3370 while let Some(prev_task) = task {
3371 prev_task.await;
3372 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3373 }
3374
3375 this.update(&mut cx, |this, cx| {
3376 if this.focus_handle.is_focused(cx) {
3377 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3378 this.completion_tasks.clear();
3379 this.discard_copilot_suggestion(cx);
3380 *this.context_menu.write() =
3381 Some(ContextMenu::CodeActions(CodeActionsMenu {
3382 buffer,
3383 actions,
3384 selected_item: Default::default(),
3385 scroll_handle: UniformListScrollHandle::default(),
3386 deployed_from_indicator,
3387 }));
3388 cx.notify();
3389 }
3390 }
3391 })?;
3392
3393 Ok::<_, anyhow::Error>(())
3394 })
3395 .detach_and_log_err(cx);
3396 }
3397
3398 pub fn confirm_code_action(
3399 &mut self,
3400 action: &ConfirmCodeAction,
3401 cx: &mut ViewContext<Self>,
3402 ) -> Option<Task<Result<()>>> {
3403 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3404 menu
3405 } else {
3406 return None;
3407 };
3408 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3409 let action = actions_menu.actions.get(action_ix)?.clone();
3410 let title = action.lsp_action.title.clone();
3411 let buffer = actions_menu.buffer;
3412 let workspace = self.workspace()?;
3413
3414 let apply_code_actions = workspace
3415 .read(cx)
3416 .project()
3417 .clone()
3418 .update(cx, |project, cx| {
3419 project.apply_code_action(buffer, action, true, cx)
3420 });
3421 let workspace = workspace.downgrade();
3422 Some(cx.spawn(|editor, cx| async move {
3423 let project_transaction = apply_code_actions.await?;
3424 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3425 }))
3426 }
3427
3428 async fn open_project_transaction(
3429 this: &WeakView<Editor>,
3430 workspace: WeakView<Workspace>,
3431 transaction: ProjectTransaction,
3432 title: String,
3433 mut cx: AsyncWindowContext,
3434 ) -> Result<()> {
3435 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3436
3437 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3438 cx.update(|cx| {
3439 entries.sort_unstable_by_key(|(buffer, _)| {
3440 buffer.read(cx).file().map(|f| f.path().clone())
3441 });
3442 })?;
3443
3444 // If the project transaction's edits are all contained within this editor, then
3445 // avoid opening a new editor to display them.
3446
3447 if let Some((buffer, transaction)) = entries.first() {
3448 if entries.len() == 1 {
3449 let excerpt = this.update(&mut cx, |editor, cx| {
3450 editor
3451 .buffer()
3452 .read(cx)
3453 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3454 })?;
3455 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3456 if excerpted_buffer == *buffer {
3457 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3458 let excerpt_range = excerpt_range.to_offset(buffer);
3459 buffer
3460 .edited_ranges_for_transaction::<usize>(transaction)
3461 .all(|range| {
3462 excerpt_range.start <= range.start
3463 && excerpt_range.end >= range.end
3464 })
3465 })?;
3466
3467 if all_edits_within_excerpt {
3468 return Ok(());
3469 }
3470 }
3471 }
3472 }
3473 } else {
3474 return Ok(());
3475 }
3476
3477 let mut ranges_to_highlight = Vec::new();
3478 let excerpt_buffer = cx.new_model(|cx| {
3479 let mut multibuffer =
3480 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3481 for (buffer_handle, transaction) in &entries {
3482 let buffer = buffer_handle.read(cx);
3483 ranges_to_highlight.extend(
3484 multibuffer.push_excerpts_with_context_lines(
3485 buffer_handle.clone(),
3486 buffer
3487 .edited_ranges_for_transaction::<usize>(transaction)
3488 .collect(),
3489 1,
3490 cx,
3491 ),
3492 );
3493 }
3494 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3495 multibuffer
3496 })?;
3497
3498 workspace.update(&mut cx, |workspace, cx| {
3499 let project = workspace.project().clone();
3500 let editor =
3501 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3502 workspace.add_item(Box::new(editor.clone()), cx);
3503 editor.update(cx, |editor, cx| {
3504 editor.highlight_background::<Self>(
3505 ranges_to_highlight,
3506 |theme| theme.editor_highlighted_line_background,
3507 cx,
3508 );
3509 });
3510 })?;
3511
3512 Ok(())
3513 }
3514
3515 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3516 let project = self.project.clone()?;
3517 let buffer = self.buffer.read(cx);
3518 let newest_selection = self.selections.newest_anchor().clone();
3519 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3520 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3521 if start_buffer != end_buffer {
3522 return None;
3523 }
3524
3525 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3526 cx.background_executor()
3527 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3528 .await;
3529
3530 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3531 project.code_actions(&start_buffer, start..end, cx)
3532 }) {
3533 code_actions.await.log_err()
3534 } else {
3535 None
3536 };
3537
3538 this.update(&mut cx, |this, cx| {
3539 this.available_code_actions = actions.and_then(|actions| {
3540 if actions.is_empty() {
3541 None
3542 } else {
3543 Some((start_buffer, actions.into()))
3544 }
3545 });
3546 cx.notify();
3547 })
3548 .log_err();
3549 }));
3550 None
3551 }
3552
3553 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3554 if self.pending_rename.is_some() {
3555 return None;
3556 }
3557
3558 let project = self.project.clone()?;
3559 let buffer = self.buffer.read(cx);
3560 let newest_selection = self.selections.newest_anchor().clone();
3561 let cursor_position = newest_selection.head();
3562 let (cursor_buffer, cursor_buffer_position) =
3563 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3564 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3565 if cursor_buffer != tail_buffer {
3566 return None;
3567 }
3568
3569 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3570 cx.background_executor()
3571 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3572 .await;
3573
3574 let highlights = if let Some(highlights) = project
3575 .update(&mut cx, |project, cx| {
3576 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3577 })
3578 .log_err()
3579 {
3580 highlights.await.log_err()
3581 } else {
3582 None
3583 };
3584
3585 if let Some(highlights) = highlights {
3586 this.update(&mut cx, |this, cx| {
3587 if this.pending_rename.is_some() {
3588 return;
3589 }
3590
3591 let buffer_id = cursor_position.buffer_id;
3592 let buffer = this.buffer.read(cx);
3593 if !buffer
3594 .text_anchor_for_position(cursor_position, cx)
3595 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3596 {
3597 return;
3598 }
3599
3600 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3601 let mut write_ranges = Vec::new();
3602 let mut read_ranges = Vec::new();
3603 for highlight in highlights {
3604 for (excerpt_id, excerpt_range) in
3605 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3606 {
3607 let start = highlight
3608 .range
3609 .start
3610 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3611 let end = highlight
3612 .range
3613 .end
3614 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3615 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3616 continue;
3617 }
3618
3619 let range = Anchor {
3620 buffer_id,
3621 excerpt_id: excerpt_id.clone(),
3622 text_anchor: start,
3623 }..Anchor {
3624 buffer_id,
3625 excerpt_id,
3626 text_anchor: end,
3627 };
3628 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3629 write_ranges.push(range);
3630 } else {
3631 read_ranges.push(range);
3632 }
3633 }
3634 }
3635
3636 this.highlight_background::<DocumentHighlightRead>(
3637 read_ranges,
3638 |theme| theme.editor_document_highlight_read_background,
3639 cx,
3640 );
3641 this.highlight_background::<DocumentHighlightWrite>(
3642 write_ranges,
3643 |theme| theme.editor_document_highlight_write_background,
3644 cx,
3645 );
3646 cx.notify();
3647 })
3648 .log_err();
3649 }
3650 }));
3651 None
3652 }
3653
3654 fn refresh_copilot_suggestions(
3655 &mut self,
3656 debounce: bool,
3657 cx: &mut ViewContext<Self>,
3658 ) -> Option<()> {
3659 let copilot = Copilot::global(cx)?;
3660 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3661 self.clear_copilot_suggestions(cx);
3662 return None;
3663 }
3664 self.update_visible_copilot_suggestion(cx);
3665
3666 let snapshot = self.buffer.read(cx).snapshot(cx);
3667 let cursor = self.selections.newest_anchor().head();
3668 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3669 self.clear_copilot_suggestions(cx);
3670 return None;
3671 }
3672
3673 let (buffer, buffer_position) =
3674 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3675 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3676 if debounce {
3677 cx.background_executor()
3678 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3679 .await;
3680 }
3681
3682 let completions = copilot
3683 .update(&mut cx, |copilot, cx| {
3684 copilot.completions(&buffer, buffer_position, cx)
3685 })
3686 .log_err()
3687 .unwrap_or(Task::ready(Ok(Vec::new())))
3688 .await
3689 .log_err()
3690 .into_iter()
3691 .flatten()
3692 .collect_vec();
3693
3694 this.update(&mut cx, |this, cx| {
3695 if !completions.is_empty() {
3696 this.copilot_state.cycled = false;
3697 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3698 this.copilot_state.completions.clear();
3699 this.copilot_state.active_completion_index = 0;
3700 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3701 for completion in completions {
3702 this.copilot_state.push_completion(completion);
3703 }
3704 this.update_visible_copilot_suggestion(cx);
3705 }
3706 })
3707 .log_err()?;
3708 Some(())
3709 });
3710
3711 Some(())
3712 }
3713
3714 fn cycle_copilot_suggestions(
3715 &mut self,
3716 direction: Direction,
3717 cx: &mut ViewContext<Self>,
3718 ) -> Option<()> {
3719 let copilot = Copilot::global(cx)?;
3720 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3721 return None;
3722 }
3723
3724 if self.copilot_state.cycled {
3725 self.copilot_state.cycle_completions(direction);
3726 self.update_visible_copilot_suggestion(cx);
3727 } else {
3728 let cursor = self.selections.newest_anchor().head();
3729 let (buffer, buffer_position) =
3730 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3731 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3732 let completions = copilot
3733 .update(&mut cx, |copilot, cx| {
3734 copilot.completions_cycling(&buffer, buffer_position, cx)
3735 })
3736 .log_err()?
3737 .await;
3738
3739 this.update(&mut cx, |this, cx| {
3740 this.copilot_state.cycled = true;
3741 for completion in completions.log_err().into_iter().flatten() {
3742 this.copilot_state.push_completion(completion);
3743 }
3744 this.copilot_state.cycle_completions(direction);
3745 this.update_visible_copilot_suggestion(cx);
3746 })
3747 .log_err()?;
3748
3749 Some(())
3750 });
3751 }
3752
3753 Some(())
3754 }
3755
3756 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3757 if !self.has_active_copilot_suggestion(cx) {
3758 self.refresh_copilot_suggestions(false, cx);
3759 return;
3760 }
3761
3762 self.update_visible_copilot_suggestion(cx);
3763 }
3764
3765 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3766 self.show_cursor_names(cx);
3767 }
3768
3769 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3770 self.show_cursor_names = true;
3771 cx.notify();
3772 cx.spawn(|this, mut cx| async move {
3773 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3774 this.update(&mut cx, |this, cx| {
3775 this.show_cursor_names = false;
3776 cx.notify()
3777 })
3778 .ok()
3779 })
3780 .detach();
3781 }
3782
3783 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3784 if self.has_active_copilot_suggestion(cx) {
3785 self.cycle_copilot_suggestions(Direction::Next, cx);
3786 } else {
3787 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3788 if is_copilot_disabled {
3789 cx.propagate();
3790 }
3791 }
3792 }
3793
3794 fn previous_copilot_suggestion(
3795 &mut self,
3796 _: &copilot::PreviousSuggestion,
3797 cx: &mut ViewContext<Self>,
3798 ) {
3799 if self.has_active_copilot_suggestion(cx) {
3800 self.cycle_copilot_suggestions(Direction::Prev, cx);
3801 } else {
3802 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3803 if is_copilot_disabled {
3804 cx.propagate();
3805 }
3806 }
3807 }
3808
3809 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3810 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3811 if let Some((copilot, completion)) =
3812 Copilot::global(cx).zip(self.copilot_state.active_completion())
3813 {
3814 copilot
3815 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3816 .detach_and_log_err(cx);
3817
3818 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3819 }
3820 cx.emit(EditorEvent::InputHandled {
3821 utf16_range_to_replace: None,
3822 text: suggestion.text.to_string().into(),
3823 });
3824 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3825 cx.notify();
3826 true
3827 } else {
3828 false
3829 }
3830 }
3831
3832 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3833 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3834 if let Some(copilot) = Copilot::global(cx) {
3835 copilot
3836 .update(cx, |copilot, cx| {
3837 copilot.discard_completions(&self.copilot_state.completions, cx)
3838 })
3839 .detach_and_log_err(cx);
3840
3841 self.report_copilot_event(None, false, cx)
3842 }
3843
3844 self.display_map.update(cx, |map, cx| {
3845 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3846 });
3847 cx.notify();
3848 true
3849 } else {
3850 false
3851 }
3852 }
3853
3854 fn is_copilot_enabled_at(
3855 &self,
3856 location: Anchor,
3857 snapshot: &MultiBufferSnapshot,
3858 cx: &mut ViewContext<Self>,
3859 ) -> bool {
3860 let file = snapshot.file_at(location);
3861 let language = snapshot.language_at(location);
3862 let settings = all_language_settings(file, cx);
3863 self.show_copilot_suggestions
3864 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3865 }
3866
3867 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3868 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3869 let buffer = self.buffer.read(cx).read(cx);
3870 suggestion.position.is_valid(&buffer)
3871 } else {
3872 false
3873 }
3874 }
3875
3876 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3877 let suggestion = self.copilot_state.suggestion.take()?;
3878 self.display_map.update(cx, |map, cx| {
3879 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3880 });
3881 let buffer = self.buffer.read(cx).read(cx);
3882
3883 if suggestion.position.is_valid(&buffer) {
3884 Some(suggestion)
3885 } else {
3886 None
3887 }
3888 }
3889
3890 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3891 let snapshot = self.buffer.read(cx).snapshot(cx);
3892 let selection = self.selections.newest_anchor();
3893 let cursor = selection.head();
3894
3895 if self.context_menu.read().is_some()
3896 || !self.completion_tasks.is_empty()
3897 || selection.start != selection.end
3898 {
3899 self.discard_copilot_suggestion(cx);
3900 } else if let Some(text) = self
3901 .copilot_state
3902 .text_for_active_completion(cursor, &snapshot)
3903 {
3904 let text = Rope::from(text);
3905 let mut to_remove = Vec::new();
3906 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3907 to_remove.push(suggestion.id);
3908 }
3909
3910 let suggestion_inlay =
3911 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3912 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3913 self.display_map.update(cx, move |map, cx| {
3914 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3915 });
3916 cx.notify();
3917 } else {
3918 self.discard_copilot_suggestion(cx);
3919 }
3920 }
3921
3922 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3923 self.copilot_state = Default::default();
3924 self.discard_copilot_suggestion(cx);
3925 }
3926
3927 pub fn render_code_actions_indicator(
3928 &self,
3929 _style: &EditorStyle,
3930 is_active: bool,
3931 cx: &mut ViewContext<Self>,
3932 ) -> Option<IconButton> {
3933 if self.available_code_actions.is_some() {
3934 Some(
3935 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3936 .icon_size(IconSize::Small)
3937 .icon_color(Color::Muted)
3938 .selected(is_active)
3939 .on_click(cx.listener(|editor, _e, cx| {
3940 editor.toggle_code_actions(
3941 &ToggleCodeActions {
3942 deployed_from_indicator: true,
3943 },
3944 cx,
3945 );
3946 })),
3947 )
3948 } else {
3949 None
3950 }
3951 }
3952
3953 pub fn render_fold_indicators(
3954 &self,
3955 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
3956 _style: &EditorStyle,
3957 gutter_hovered: bool,
3958 _line_height: Pixels,
3959 _gutter_margin: Pixels,
3960 editor_view: View<Editor>,
3961 ) -> Vec<Option<IconButton>> {
3962 fold_data
3963 .iter()
3964 .enumerate()
3965 .map(|(ix, fold_data)| {
3966 fold_data
3967 .map(|(fold_status, buffer_row, active)| {
3968 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
3969 IconButton::new(ix as usize, ui::IconName::ChevronDown)
3970 .on_click({
3971 let view = editor_view.clone();
3972 move |_e, cx| {
3973 view.update(cx, |editor, cx| match fold_status {
3974 FoldStatus::Folded => {
3975 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
3976 }
3977 FoldStatus::Foldable => {
3978 editor.fold_at(&FoldAt { buffer_row }, cx);
3979 }
3980 })
3981 }
3982 })
3983 .icon_color(ui::Color::Muted)
3984 .icon_size(ui::IconSize::Small)
3985 .selected(fold_status == FoldStatus::Folded)
3986 .selected_icon(ui::IconName::ChevronRight)
3987 .size(ui::ButtonSize::None)
3988 })
3989 })
3990 .flatten()
3991 })
3992 .collect()
3993 }
3994
3995 pub fn context_menu_visible(&self) -> bool {
3996 self.context_menu
3997 .read()
3998 .as_ref()
3999 .map_or(false, |menu| menu.visible())
4000 }
4001
4002 pub fn render_context_menu(
4003 &self,
4004 cursor_position: DisplayPoint,
4005 style: &EditorStyle,
4006 max_height: Pixels,
4007 cx: &mut ViewContext<Editor>,
4008 ) -> Option<(DisplayPoint, AnyElement)> {
4009 self.context_menu.read().as_ref().map(|menu| {
4010 menu.render(
4011 cursor_position,
4012 style,
4013 max_height,
4014 self.workspace.as_ref().map(|(w, _)| w.clone()),
4015 cx,
4016 )
4017 })
4018 }
4019
4020 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4021 cx.notify();
4022 self.completion_tasks.clear();
4023 let context_menu = self.context_menu.write().take();
4024 if context_menu.is_some() {
4025 self.update_visible_copilot_suggestion(cx);
4026 }
4027 context_menu
4028 }
4029
4030 pub fn insert_snippet(
4031 &mut self,
4032 insertion_ranges: &[Range<usize>],
4033 snippet: Snippet,
4034 cx: &mut ViewContext<Self>,
4035 ) -> Result<()> {
4036 let tabstops = self.buffer.update(cx, |buffer, cx| {
4037 let snippet_text: Arc<str> = snippet.text.clone().into();
4038 buffer.edit(
4039 insertion_ranges
4040 .iter()
4041 .cloned()
4042 .map(|range| (range, snippet_text.clone())),
4043 Some(AutoindentMode::EachLine),
4044 cx,
4045 );
4046
4047 let snapshot = &*buffer.read(cx);
4048 let snippet = &snippet;
4049 snippet
4050 .tabstops
4051 .iter()
4052 .map(|tabstop| {
4053 let mut tabstop_ranges = tabstop
4054 .iter()
4055 .flat_map(|tabstop_range| {
4056 let mut delta = 0_isize;
4057 insertion_ranges.iter().map(move |insertion_range| {
4058 let insertion_start = insertion_range.start as isize + delta;
4059 delta +=
4060 snippet.text.len() as isize - insertion_range.len() as isize;
4061
4062 let start = snapshot.anchor_before(
4063 (insertion_start + tabstop_range.start) as usize,
4064 );
4065 let end = snapshot
4066 .anchor_after((insertion_start + tabstop_range.end) as usize);
4067 start..end
4068 })
4069 })
4070 .collect::<Vec<_>>();
4071 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4072 tabstop_ranges
4073 })
4074 .collect::<Vec<_>>()
4075 });
4076
4077 if let Some(tabstop) = tabstops.first() {
4078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4079 s.select_ranges(tabstop.iter().cloned());
4080 });
4081 self.snippet_stack.push(SnippetState {
4082 active_index: 0,
4083 ranges: tabstops,
4084 });
4085 }
4086
4087 Ok(())
4088 }
4089
4090 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4091 self.move_to_snippet_tabstop(Bias::Right, cx)
4092 }
4093
4094 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4095 self.move_to_snippet_tabstop(Bias::Left, cx)
4096 }
4097
4098 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4099 if let Some(mut snippet) = self.snippet_stack.pop() {
4100 match bias {
4101 Bias::Left => {
4102 if snippet.active_index > 0 {
4103 snippet.active_index -= 1;
4104 } else {
4105 self.snippet_stack.push(snippet);
4106 return false;
4107 }
4108 }
4109 Bias::Right => {
4110 if snippet.active_index + 1 < snippet.ranges.len() {
4111 snippet.active_index += 1;
4112 } else {
4113 self.snippet_stack.push(snippet);
4114 return false;
4115 }
4116 }
4117 }
4118 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4120 s.select_anchor_ranges(current_ranges.iter().cloned())
4121 });
4122 // If snippet state is not at the last tabstop, push it back on the stack
4123 if snippet.active_index + 1 < snippet.ranges.len() {
4124 self.snippet_stack.push(snippet);
4125 }
4126 return true;
4127 }
4128 }
4129
4130 false
4131 }
4132
4133 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4134 self.transact(cx, |this, cx| {
4135 this.select_all(&SelectAll, cx);
4136 this.insert("", cx);
4137 });
4138 }
4139
4140 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4141 self.transact(cx, |this, cx| {
4142 this.select_autoclose_pair(cx);
4143 let mut selections = this.selections.all::<Point>(cx);
4144 if !this.selections.line_mode {
4145 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4146 for selection in &mut selections {
4147 if selection.is_empty() {
4148 let old_head = selection.head();
4149 let mut new_head =
4150 movement::left(&display_map, old_head.to_display_point(&display_map))
4151 .to_point(&display_map);
4152 if let Some((buffer, line_buffer_range)) = display_map
4153 .buffer_snapshot
4154 .buffer_line_for_row(old_head.row)
4155 {
4156 let indent_size =
4157 buffer.indent_size_for_line(line_buffer_range.start.row);
4158 let indent_len = match indent_size.kind {
4159 IndentKind::Space => {
4160 buffer.settings_at(line_buffer_range.start, cx).tab_size
4161 }
4162 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4163 };
4164 if old_head.column <= indent_size.len && old_head.column > 0 {
4165 let indent_len = indent_len.get();
4166 new_head = cmp::min(
4167 new_head,
4168 Point::new(
4169 old_head.row,
4170 ((old_head.column - 1) / indent_len) * indent_len,
4171 ),
4172 );
4173 }
4174 }
4175
4176 selection.set_head(new_head, SelectionGoal::None);
4177 }
4178 }
4179 }
4180
4181 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4182 this.insert("", cx);
4183 this.refresh_copilot_suggestions(true, cx);
4184 });
4185 }
4186
4187 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4188 self.transact(cx, |this, cx| {
4189 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4190 let line_mode = s.line_mode;
4191 s.move_with(|map, selection| {
4192 if selection.is_empty() && !line_mode {
4193 let cursor = movement::right(map, selection.head());
4194 selection.end = cursor;
4195 selection.reversed = true;
4196 selection.goal = SelectionGoal::None;
4197 }
4198 })
4199 });
4200 this.insert("", cx);
4201 this.refresh_copilot_suggestions(true, cx);
4202 });
4203 }
4204
4205 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4206 if self.move_to_prev_snippet_tabstop(cx) {
4207 return;
4208 }
4209
4210 self.outdent(&Outdent, cx);
4211 }
4212
4213 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4214 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4215 return;
4216 }
4217
4218 let mut selections = self.selections.all_adjusted(cx);
4219 let buffer = self.buffer.read(cx);
4220 let snapshot = buffer.snapshot(cx);
4221 let rows_iter = selections.iter().map(|s| s.head().row);
4222 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4223
4224 let mut edits = Vec::new();
4225 let mut prev_edited_row = 0;
4226 let mut row_delta = 0;
4227 for selection in &mut selections {
4228 if selection.start.row != prev_edited_row {
4229 row_delta = 0;
4230 }
4231 prev_edited_row = selection.end.row;
4232
4233 // If the selection is non-empty, then increase the indentation of the selected lines.
4234 if !selection.is_empty() {
4235 row_delta =
4236 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4237 continue;
4238 }
4239
4240 // If the selection is empty and the cursor is in the leading whitespace before the
4241 // suggested indentation, then auto-indent the line.
4242 let cursor = selection.head();
4243 let current_indent = snapshot.indent_size_for_line(cursor.row);
4244 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4245 if cursor.column < suggested_indent.len
4246 && cursor.column <= current_indent.len
4247 && current_indent.len <= suggested_indent.len
4248 {
4249 selection.start = Point::new(cursor.row, suggested_indent.len);
4250 selection.end = selection.start;
4251 if row_delta == 0 {
4252 edits.extend(Buffer::edit_for_indent_size_adjustment(
4253 cursor.row,
4254 current_indent,
4255 suggested_indent,
4256 ));
4257 row_delta = suggested_indent.len - current_indent.len;
4258 }
4259 continue;
4260 }
4261 }
4262
4263 // Accept copilot suggestion if there is only one selection and the cursor is not
4264 // in the leading whitespace.
4265 if self.selections.count() == 1
4266 && cursor.column >= current_indent.len
4267 && self.has_active_copilot_suggestion(cx)
4268 {
4269 self.accept_copilot_suggestion(cx);
4270 return;
4271 }
4272
4273 // Otherwise, insert a hard or soft tab.
4274 let settings = buffer.settings_at(cursor, cx);
4275 let tab_size = if settings.hard_tabs {
4276 IndentSize::tab()
4277 } else {
4278 let tab_size = settings.tab_size.get();
4279 let char_column = snapshot
4280 .text_for_range(Point::new(cursor.row, 0)..cursor)
4281 .flat_map(str::chars)
4282 .count()
4283 + row_delta as usize;
4284 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4285 IndentSize::spaces(chars_to_next_tab_stop)
4286 };
4287 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4288 selection.end = selection.start;
4289 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4290 row_delta += tab_size.len;
4291 }
4292
4293 self.transact(cx, |this, cx| {
4294 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4295 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4296 this.refresh_copilot_suggestions(true, cx);
4297 });
4298 }
4299
4300 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4301 let mut selections = self.selections.all::<Point>(cx);
4302 let mut prev_edited_row = 0;
4303 let mut row_delta = 0;
4304 let mut edits = Vec::new();
4305 let buffer = self.buffer.read(cx);
4306 let snapshot = buffer.snapshot(cx);
4307 for selection in &mut selections {
4308 if selection.start.row != prev_edited_row {
4309 row_delta = 0;
4310 }
4311 prev_edited_row = selection.end.row;
4312
4313 row_delta =
4314 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4315 }
4316
4317 self.transact(cx, |this, cx| {
4318 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4319 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4320 });
4321 }
4322
4323 fn indent_selection(
4324 buffer: &MultiBuffer,
4325 snapshot: &MultiBufferSnapshot,
4326 selection: &mut Selection<Point>,
4327 edits: &mut Vec<(Range<Point>, String)>,
4328 delta_for_start_row: u32,
4329 cx: &AppContext,
4330 ) -> u32 {
4331 let settings = buffer.settings_at(selection.start, cx);
4332 let tab_size = settings.tab_size.get();
4333 let indent_kind = if settings.hard_tabs {
4334 IndentKind::Tab
4335 } else {
4336 IndentKind::Space
4337 };
4338 let mut start_row = selection.start.row;
4339 let mut end_row = selection.end.row + 1;
4340
4341 // If a selection ends at the beginning of a line, don't indent
4342 // that last line.
4343 if selection.end.column == 0 {
4344 end_row -= 1;
4345 }
4346
4347 // Avoid re-indenting a row that has already been indented by a
4348 // previous selection, but still update this selection's column
4349 // to reflect that indentation.
4350 if delta_for_start_row > 0 {
4351 start_row += 1;
4352 selection.start.column += delta_for_start_row;
4353 if selection.end.row == selection.start.row {
4354 selection.end.column += delta_for_start_row;
4355 }
4356 }
4357
4358 let mut delta_for_end_row = 0;
4359 for row in start_row..end_row {
4360 let current_indent = snapshot.indent_size_for_line(row);
4361 let indent_delta = match (current_indent.kind, indent_kind) {
4362 (IndentKind::Space, IndentKind::Space) => {
4363 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4364 IndentSize::spaces(columns_to_next_tab_stop)
4365 }
4366 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4367 (_, IndentKind::Tab) => IndentSize::tab(),
4368 };
4369
4370 let row_start = Point::new(row, 0);
4371 edits.push((
4372 row_start..row_start,
4373 indent_delta.chars().collect::<String>(),
4374 ));
4375
4376 // Update this selection's endpoints to reflect the indentation.
4377 if row == selection.start.row {
4378 selection.start.column += indent_delta.len;
4379 }
4380 if row == selection.end.row {
4381 selection.end.column += indent_delta.len;
4382 delta_for_end_row = indent_delta.len;
4383 }
4384 }
4385
4386 if selection.start.row == selection.end.row {
4387 delta_for_start_row + delta_for_end_row
4388 } else {
4389 delta_for_end_row
4390 }
4391 }
4392
4393 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4394 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4395 let selections = self.selections.all::<Point>(cx);
4396 let mut deletion_ranges = Vec::new();
4397 let mut last_outdent = None;
4398 {
4399 let buffer = self.buffer.read(cx);
4400 let snapshot = buffer.snapshot(cx);
4401 for selection in &selections {
4402 let settings = buffer.settings_at(selection.start, cx);
4403 let tab_size = settings.tab_size.get();
4404 let mut rows = selection.spanned_rows(false, &display_map);
4405
4406 // Avoid re-outdenting a row that has already been outdented by a
4407 // previous selection.
4408 if let Some(last_row) = last_outdent {
4409 if last_row == rows.start {
4410 rows.start += 1;
4411 }
4412 }
4413
4414 for row in rows {
4415 let indent_size = snapshot.indent_size_for_line(row);
4416 if indent_size.len > 0 {
4417 let deletion_len = match indent_size.kind {
4418 IndentKind::Space => {
4419 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4420 if columns_to_prev_tab_stop == 0 {
4421 tab_size
4422 } else {
4423 columns_to_prev_tab_stop
4424 }
4425 }
4426 IndentKind::Tab => 1,
4427 };
4428 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4429 last_outdent = Some(row);
4430 }
4431 }
4432 }
4433 }
4434
4435 self.transact(cx, |this, cx| {
4436 this.buffer.update(cx, |buffer, cx| {
4437 let empty_str: Arc<str> = "".into();
4438 buffer.edit(
4439 deletion_ranges
4440 .into_iter()
4441 .map(|range| (range, empty_str.clone())),
4442 None,
4443 cx,
4444 );
4445 });
4446 let selections = this.selections.all::<usize>(cx);
4447 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4448 });
4449 }
4450
4451 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4452 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4453 let selections = self.selections.all::<Point>(cx);
4454
4455 let mut new_cursors = Vec::new();
4456 let mut edit_ranges = Vec::new();
4457 let mut selections = selections.iter().peekable();
4458 while let Some(selection) = selections.next() {
4459 let mut rows = selection.spanned_rows(false, &display_map);
4460 let goal_display_column = selection.head().to_display_point(&display_map).column();
4461
4462 // Accumulate contiguous regions of rows that we want to delete.
4463 while let Some(next_selection) = selections.peek() {
4464 let next_rows = next_selection.spanned_rows(false, &display_map);
4465 if next_rows.start <= rows.end {
4466 rows.end = next_rows.end;
4467 selections.next().unwrap();
4468 } else {
4469 break;
4470 }
4471 }
4472
4473 let buffer = &display_map.buffer_snapshot;
4474 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4475 let edit_end;
4476 let cursor_buffer_row;
4477 if buffer.max_point().row >= rows.end {
4478 // If there's a line after the range, delete the \n from the end of the row range
4479 // and position the cursor on the next line.
4480 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4481 cursor_buffer_row = rows.end;
4482 } else {
4483 // If there isn't a line after the range, delete the \n from the line before the
4484 // start of the row range and position the cursor there.
4485 edit_start = edit_start.saturating_sub(1);
4486 edit_end = buffer.len();
4487 cursor_buffer_row = rows.start.saturating_sub(1);
4488 }
4489
4490 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4491 *cursor.column_mut() =
4492 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4493
4494 new_cursors.push((
4495 selection.id,
4496 buffer.anchor_after(cursor.to_point(&display_map)),
4497 ));
4498 edit_ranges.push(edit_start..edit_end);
4499 }
4500
4501 self.transact(cx, |this, cx| {
4502 let buffer = this.buffer.update(cx, |buffer, cx| {
4503 let empty_str: Arc<str> = "".into();
4504 buffer.edit(
4505 edit_ranges
4506 .into_iter()
4507 .map(|range| (range, empty_str.clone())),
4508 None,
4509 cx,
4510 );
4511 buffer.snapshot(cx)
4512 });
4513 let new_selections = new_cursors
4514 .into_iter()
4515 .map(|(id, cursor)| {
4516 let cursor = cursor.to_point(&buffer);
4517 Selection {
4518 id,
4519 start: cursor,
4520 end: cursor,
4521 reversed: false,
4522 goal: SelectionGoal::None,
4523 }
4524 })
4525 .collect();
4526
4527 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4528 s.select(new_selections);
4529 });
4530 });
4531 }
4532
4533 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4534 let mut row_ranges = Vec::<Range<u32>>::new();
4535 for selection in self.selections.all::<Point>(cx) {
4536 let start = selection.start.row;
4537 let end = if selection.start.row == selection.end.row {
4538 selection.start.row + 1
4539 } else {
4540 selection.end.row
4541 };
4542
4543 if let Some(last_row_range) = row_ranges.last_mut() {
4544 if start <= last_row_range.end {
4545 last_row_range.end = end;
4546 continue;
4547 }
4548 }
4549 row_ranges.push(start..end);
4550 }
4551
4552 let snapshot = self.buffer.read(cx).snapshot(cx);
4553 let mut cursor_positions = Vec::new();
4554 for row_range in &row_ranges {
4555 let anchor = snapshot.anchor_before(Point::new(
4556 row_range.end - 1,
4557 snapshot.line_len(row_range.end - 1),
4558 ));
4559 cursor_positions.push(anchor.clone()..anchor);
4560 }
4561
4562 self.transact(cx, |this, cx| {
4563 for row_range in row_ranges.into_iter().rev() {
4564 for row in row_range.rev() {
4565 let end_of_line = Point::new(row, snapshot.line_len(row));
4566 let indent = snapshot.indent_size_for_line(row + 1);
4567 let start_of_next_line = Point::new(row + 1, indent.len);
4568
4569 let replace = if snapshot.line_len(row + 1) > indent.len {
4570 " "
4571 } else {
4572 ""
4573 };
4574
4575 this.buffer.update(cx, |buffer, cx| {
4576 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4577 });
4578 }
4579 }
4580
4581 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4582 s.select_anchor_ranges(cursor_positions)
4583 });
4584 });
4585 }
4586
4587 pub fn sort_lines_case_sensitive(
4588 &mut self,
4589 _: &SortLinesCaseSensitive,
4590 cx: &mut ViewContext<Self>,
4591 ) {
4592 self.manipulate_lines(cx, |lines| lines.sort())
4593 }
4594
4595 pub fn sort_lines_case_insensitive(
4596 &mut self,
4597 _: &SortLinesCaseInsensitive,
4598 cx: &mut ViewContext<Self>,
4599 ) {
4600 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4601 }
4602
4603 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4604 self.manipulate_lines(cx, |lines| lines.reverse())
4605 }
4606
4607 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4608 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4609 }
4610
4611 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4612 where
4613 Fn: FnMut(&mut [&str]),
4614 {
4615 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4616 let buffer = self.buffer.read(cx).snapshot(cx);
4617
4618 let mut edits = Vec::new();
4619
4620 let selections = self.selections.all::<Point>(cx);
4621 let mut selections = selections.iter().peekable();
4622 let mut contiguous_row_selections = Vec::new();
4623 let mut new_selections = Vec::new();
4624
4625 while let Some(selection) = selections.next() {
4626 let (start_row, end_row) = consume_contiguous_rows(
4627 &mut contiguous_row_selections,
4628 selection,
4629 &display_map,
4630 &mut selections,
4631 );
4632
4633 let start_point = Point::new(start_row, 0);
4634 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4635 let text = buffer
4636 .text_for_range(start_point..end_point)
4637 .collect::<String>();
4638 let mut lines = text.split("\n").collect_vec();
4639
4640 let lines_len = lines.len();
4641 callback(&mut lines);
4642
4643 // This is a current limitation with selections.
4644 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4645 debug_assert!(
4646 lines.len() == lines_len,
4647 "callback should not change the number of lines"
4648 );
4649
4650 edits.push((start_point..end_point, lines.join("\n")));
4651 let start_anchor = buffer.anchor_after(start_point);
4652 let end_anchor = buffer.anchor_before(end_point);
4653
4654 // Make selection and push
4655 new_selections.push(Selection {
4656 id: selection.id,
4657 start: start_anchor.to_offset(&buffer),
4658 end: end_anchor.to_offset(&buffer),
4659 goal: SelectionGoal::None,
4660 reversed: selection.reversed,
4661 });
4662 }
4663
4664 self.transact(cx, |this, cx| {
4665 this.buffer.update(cx, |buffer, cx| {
4666 buffer.edit(edits, None, cx);
4667 });
4668
4669 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4670 s.select(new_selections);
4671 });
4672
4673 this.request_autoscroll(Autoscroll::fit(), cx);
4674 });
4675 }
4676
4677 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4678 self.manipulate_text(cx, |text| text.to_uppercase())
4679 }
4680
4681 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4682 self.manipulate_text(cx, |text| text.to_lowercase())
4683 }
4684
4685 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4686 self.manipulate_text(cx, |text| {
4687 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4688 // https://github.com/rutrum/convert-case/issues/16
4689 text.split("\n")
4690 .map(|line| line.to_case(Case::Title))
4691 .join("\n")
4692 })
4693 }
4694
4695 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4696 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4697 }
4698
4699 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4700 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4701 }
4702
4703 pub fn convert_to_upper_camel_case(
4704 &mut self,
4705 _: &ConvertToUpperCamelCase,
4706 cx: &mut ViewContext<Self>,
4707 ) {
4708 self.manipulate_text(cx, |text| {
4709 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4710 // https://github.com/rutrum/convert-case/issues/16
4711 text.split("\n")
4712 .map(|line| line.to_case(Case::UpperCamel))
4713 .join("\n")
4714 })
4715 }
4716
4717 pub fn convert_to_lower_camel_case(
4718 &mut self,
4719 _: &ConvertToLowerCamelCase,
4720 cx: &mut ViewContext<Self>,
4721 ) {
4722 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4723 }
4724
4725 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4726 where
4727 Fn: FnMut(&str) -> String,
4728 {
4729 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4730 let buffer = self.buffer.read(cx).snapshot(cx);
4731
4732 let mut new_selections = Vec::new();
4733 let mut edits = Vec::new();
4734 let mut selection_adjustment = 0i32;
4735
4736 for selection in self.selections.all::<usize>(cx) {
4737 let selection_is_empty = selection.is_empty();
4738
4739 let (start, end) = if selection_is_empty {
4740 let word_range = movement::surrounding_word(
4741 &display_map,
4742 selection.start.to_display_point(&display_map),
4743 );
4744 let start = word_range.start.to_offset(&display_map, Bias::Left);
4745 let end = word_range.end.to_offset(&display_map, Bias::Left);
4746 (start, end)
4747 } else {
4748 (selection.start, selection.end)
4749 };
4750
4751 let text = buffer.text_for_range(start..end).collect::<String>();
4752 let old_length = text.len() as i32;
4753 let text = callback(&text);
4754
4755 new_selections.push(Selection {
4756 start: (start as i32 - selection_adjustment) as usize,
4757 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4758 goal: SelectionGoal::None,
4759 ..selection
4760 });
4761
4762 selection_adjustment += old_length - text.len() as i32;
4763
4764 edits.push((start..end, text));
4765 }
4766
4767 self.transact(cx, |this, cx| {
4768 this.buffer.update(cx, |buffer, cx| {
4769 buffer.edit(edits, None, cx);
4770 });
4771
4772 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4773 s.select(new_selections);
4774 });
4775
4776 this.request_autoscroll(Autoscroll::fit(), cx);
4777 });
4778 }
4779
4780 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4781 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4782 let buffer = &display_map.buffer_snapshot;
4783 let selections = self.selections.all::<Point>(cx);
4784
4785 let mut edits = Vec::new();
4786 let mut selections_iter = selections.iter().peekable();
4787 while let Some(selection) = selections_iter.next() {
4788 // Avoid duplicating the same lines twice.
4789 let mut rows = selection.spanned_rows(false, &display_map);
4790
4791 while let Some(next_selection) = selections_iter.peek() {
4792 let next_rows = next_selection.spanned_rows(false, &display_map);
4793 if next_rows.start < rows.end {
4794 rows.end = next_rows.end;
4795 selections_iter.next().unwrap();
4796 } else {
4797 break;
4798 }
4799 }
4800
4801 // Copy the text from the selected row region and splice it at the start of the region.
4802 let start = Point::new(rows.start, 0);
4803 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4804 let text = buffer
4805 .text_for_range(start..end)
4806 .chain(Some("\n"))
4807 .collect::<String>();
4808 edits.push((start..start, text));
4809 }
4810
4811 self.transact(cx, |this, cx| {
4812 this.buffer.update(cx, |buffer, cx| {
4813 buffer.edit(edits, None, cx);
4814 });
4815
4816 this.request_autoscroll(Autoscroll::fit(), cx);
4817 });
4818 }
4819
4820 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4821 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4822 let buffer = self.buffer.read(cx).snapshot(cx);
4823
4824 let mut edits = Vec::new();
4825 let mut unfold_ranges = Vec::new();
4826 let mut refold_ranges = Vec::new();
4827
4828 let selections = self.selections.all::<Point>(cx);
4829 let mut selections = selections.iter().peekable();
4830 let mut contiguous_row_selections = Vec::new();
4831 let mut new_selections = Vec::new();
4832
4833 while let Some(selection) = selections.next() {
4834 // Find all the selections that span a contiguous row range
4835 let (start_row, end_row) = consume_contiguous_rows(
4836 &mut contiguous_row_selections,
4837 selection,
4838 &display_map,
4839 &mut selections,
4840 );
4841
4842 // Move the text spanned by the row range to be before the line preceding the row range
4843 if start_row > 0 {
4844 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4845 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4846 let insertion_point = display_map
4847 .prev_line_boundary(Point::new(start_row - 1, 0))
4848 .0;
4849
4850 // Don't move lines across excerpts
4851 if buffer
4852 .excerpt_boundaries_in_range((
4853 Bound::Excluded(insertion_point),
4854 Bound::Included(range_to_move.end),
4855 ))
4856 .next()
4857 .is_none()
4858 {
4859 let text = buffer
4860 .text_for_range(range_to_move.clone())
4861 .flat_map(|s| s.chars())
4862 .skip(1)
4863 .chain(['\n'])
4864 .collect::<String>();
4865
4866 edits.push((
4867 buffer.anchor_after(range_to_move.start)
4868 ..buffer.anchor_before(range_to_move.end),
4869 String::new(),
4870 ));
4871 let insertion_anchor = buffer.anchor_after(insertion_point);
4872 edits.push((insertion_anchor..insertion_anchor, text));
4873
4874 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4875
4876 // Move selections up
4877 new_selections.extend(contiguous_row_selections.drain(..).map(
4878 |mut selection| {
4879 selection.start.row -= row_delta;
4880 selection.end.row -= row_delta;
4881 selection
4882 },
4883 ));
4884
4885 // Move folds up
4886 unfold_ranges.push(range_to_move.clone());
4887 for fold in display_map.folds_in_range(
4888 buffer.anchor_before(range_to_move.start)
4889 ..buffer.anchor_after(range_to_move.end),
4890 ) {
4891 let mut start = fold.range.start.to_point(&buffer);
4892 let mut end = fold.range.end.to_point(&buffer);
4893 start.row -= row_delta;
4894 end.row -= row_delta;
4895 refold_ranges.push(start..end);
4896 }
4897 }
4898 }
4899
4900 // If we didn't move line(s), preserve the existing selections
4901 new_selections.append(&mut contiguous_row_selections);
4902 }
4903
4904 self.transact(cx, |this, cx| {
4905 this.unfold_ranges(unfold_ranges, true, true, cx);
4906 this.buffer.update(cx, |buffer, cx| {
4907 for (range, text) in edits {
4908 buffer.edit([(range, text)], None, cx);
4909 }
4910 });
4911 this.fold_ranges(refold_ranges, true, cx);
4912 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4913 s.select(new_selections);
4914 })
4915 });
4916 }
4917
4918 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4919 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4920 let buffer = self.buffer.read(cx).snapshot(cx);
4921
4922 let mut edits = Vec::new();
4923 let mut unfold_ranges = Vec::new();
4924 let mut refold_ranges = Vec::new();
4925
4926 let selections = self.selections.all::<Point>(cx);
4927 let mut selections = selections.iter().peekable();
4928 let mut contiguous_row_selections = Vec::new();
4929 let mut new_selections = Vec::new();
4930
4931 while let Some(selection) = selections.next() {
4932 // Find all the selections that span a contiguous row range
4933 let (start_row, end_row) = consume_contiguous_rows(
4934 &mut contiguous_row_selections,
4935 selection,
4936 &display_map,
4937 &mut selections,
4938 );
4939
4940 // Move the text spanned by the row range to be after the last line of the row range
4941 if end_row <= buffer.max_point().row {
4942 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4943 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4944
4945 // Don't move lines across excerpt boundaries
4946 if buffer
4947 .excerpt_boundaries_in_range((
4948 Bound::Excluded(range_to_move.start),
4949 Bound::Included(insertion_point),
4950 ))
4951 .next()
4952 .is_none()
4953 {
4954 let mut text = String::from("\n");
4955 text.extend(buffer.text_for_range(range_to_move.clone()));
4956 text.pop(); // Drop trailing newline
4957 edits.push((
4958 buffer.anchor_after(range_to_move.start)
4959 ..buffer.anchor_before(range_to_move.end),
4960 String::new(),
4961 ));
4962 let insertion_anchor = buffer.anchor_after(insertion_point);
4963 edits.push((insertion_anchor..insertion_anchor, text));
4964
4965 let row_delta = insertion_point.row - range_to_move.end.row + 1;
4966
4967 // Move selections down
4968 new_selections.extend(contiguous_row_selections.drain(..).map(
4969 |mut selection| {
4970 selection.start.row += row_delta;
4971 selection.end.row += row_delta;
4972 selection
4973 },
4974 ));
4975
4976 // Move folds down
4977 unfold_ranges.push(range_to_move.clone());
4978 for fold in display_map.folds_in_range(
4979 buffer.anchor_before(range_to_move.start)
4980 ..buffer.anchor_after(range_to_move.end),
4981 ) {
4982 let mut start = fold.range.start.to_point(&buffer);
4983 let mut end = fold.range.end.to_point(&buffer);
4984 start.row += row_delta;
4985 end.row += row_delta;
4986 refold_ranges.push(start..end);
4987 }
4988 }
4989 }
4990
4991 // If we didn't move line(s), preserve the existing selections
4992 new_selections.append(&mut contiguous_row_selections);
4993 }
4994
4995 self.transact(cx, |this, cx| {
4996 this.unfold_ranges(unfold_ranges, true, true, cx);
4997 this.buffer.update(cx, |buffer, cx| {
4998 for (range, text) in edits {
4999 buffer.edit([(range, text)], None, cx);
5000 }
5001 });
5002 this.fold_ranges(refold_ranges, true, cx);
5003 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5004 });
5005 }
5006
5007 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5008 let text_layout_details = &self.text_layout_details(cx);
5009 self.transact(cx, |this, cx| {
5010 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5011 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5012 let line_mode = s.line_mode;
5013 s.move_with(|display_map, selection| {
5014 if !selection.is_empty() || line_mode {
5015 return;
5016 }
5017
5018 let mut head = selection.head();
5019 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5020 if head.column() == display_map.line_len(head.row()) {
5021 transpose_offset = display_map
5022 .buffer_snapshot
5023 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5024 }
5025
5026 if transpose_offset == 0 {
5027 return;
5028 }
5029
5030 *head.column_mut() += 1;
5031 head = display_map.clip_point(head, Bias::Right);
5032 let goal = SelectionGoal::HorizontalPosition(
5033 display_map
5034 .x_for_display_point(head, &text_layout_details)
5035 .into(),
5036 );
5037 selection.collapse_to(head, goal);
5038
5039 let transpose_start = display_map
5040 .buffer_snapshot
5041 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5042 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5043 let transpose_end = display_map
5044 .buffer_snapshot
5045 .clip_offset(transpose_offset + 1, Bias::Right);
5046 if let Some(ch) =
5047 display_map.buffer_snapshot.chars_at(transpose_start).next()
5048 {
5049 edits.push((transpose_start..transpose_offset, String::new()));
5050 edits.push((transpose_end..transpose_end, ch.to_string()));
5051 }
5052 }
5053 });
5054 edits
5055 });
5056 this.buffer
5057 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5058 let selections = this.selections.all::<usize>(cx);
5059 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5060 s.select(selections);
5061 });
5062 });
5063 }
5064
5065 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5066 let mut text = String::new();
5067 let buffer = self.buffer.read(cx).snapshot(cx);
5068 let mut selections = self.selections.all::<Point>(cx);
5069 let mut clipboard_selections = Vec::with_capacity(selections.len());
5070 {
5071 let max_point = buffer.max_point();
5072 let mut is_first = true;
5073 for selection in &mut selections {
5074 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5075 if is_entire_line {
5076 selection.start = Point::new(selection.start.row, 0);
5077 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5078 selection.goal = SelectionGoal::None;
5079 }
5080 if is_first {
5081 is_first = false;
5082 } else {
5083 text += "\n";
5084 }
5085 let mut len = 0;
5086 for chunk in buffer.text_for_range(selection.start..selection.end) {
5087 text.push_str(chunk);
5088 len += chunk.len();
5089 }
5090 clipboard_selections.push(ClipboardSelection {
5091 len,
5092 is_entire_line,
5093 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5094 });
5095 }
5096 }
5097
5098 self.transact(cx, |this, cx| {
5099 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5100 s.select(selections);
5101 });
5102 this.insert("", cx);
5103 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5104 });
5105 }
5106
5107 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5108 let selections = self.selections.all::<Point>(cx);
5109 let buffer = self.buffer.read(cx).read(cx);
5110 let mut text = String::new();
5111
5112 let mut clipboard_selections = Vec::with_capacity(selections.len());
5113 {
5114 let max_point = buffer.max_point();
5115 let mut is_first = true;
5116 for selection in selections.iter() {
5117 let mut start = selection.start;
5118 let mut end = selection.end;
5119 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5120 if is_entire_line {
5121 start = Point::new(start.row, 0);
5122 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5123 }
5124 if is_first {
5125 is_first = false;
5126 } else {
5127 text += "\n";
5128 }
5129 let mut len = 0;
5130 for chunk in buffer.text_for_range(start..end) {
5131 text.push_str(chunk);
5132 len += chunk.len();
5133 }
5134 clipboard_selections.push(ClipboardSelection {
5135 len,
5136 is_entire_line,
5137 first_line_indent: buffer.indent_size_for_line(start.row).len,
5138 });
5139 }
5140 }
5141
5142 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5143 }
5144
5145 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5146 if self.read_only(cx) {
5147 return;
5148 }
5149
5150 self.transact(cx, |this, cx| {
5151 if let Some(item) = cx.read_from_clipboard() {
5152 let clipboard_text = Cow::Borrowed(item.text());
5153 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5154 let old_selections = this.selections.all::<usize>(cx);
5155 let all_selections_were_entire_line =
5156 clipboard_selections.iter().all(|s| s.is_entire_line);
5157 let first_selection_indent_column =
5158 clipboard_selections.first().map(|s| s.first_line_indent);
5159 if clipboard_selections.len() != old_selections.len() {
5160 clipboard_selections.drain(..);
5161 }
5162
5163 this.buffer.update(cx, |buffer, cx| {
5164 let snapshot = buffer.read(cx);
5165 let mut start_offset = 0;
5166 let mut edits = Vec::new();
5167 let mut original_indent_columns = Vec::new();
5168 let line_mode = this.selections.line_mode;
5169 for (ix, selection) in old_selections.iter().enumerate() {
5170 let to_insert;
5171 let entire_line;
5172 let original_indent_column;
5173 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5174 let end_offset = start_offset + clipboard_selection.len;
5175 to_insert = &clipboard_text[start_offset..end_offset];
5176 entire_line = clipboard_selection.is_entire_line;
5177 start_offset = end_offset + 1;
5178 original_indent_column =
5179 Some(clipboard_selection.first_line_indent);
5180 } else {
5181 to_insert = clipboard_text.as_str();
5182 entire_line = all_selections_were_entire_line;
5183 original_indent_column = first_selection_indent_column
5184 }
5185
5186 // If the corresponding selection was empty when this slice of the
5187 // clipboard text was written, then the entire line containing the
5188 // selection was copied. If this selection is also currently empty,
5189 // then paste the line before the current line of the buffer.
5190 let range = if selection.is_empty() && !line_mode && entire_line {
5191 let column = selection.start.to_point(&snapshot).column as usize;
5192 let line_start = selection.start - column;
5193 line_start..line_start
5194 } else {
5195 selection.range()
5196 };
5197
5198 edits.push((range, to_insert));
5199 original_indent_columns.extend(original_indent_column);
5200 }
5201 drop(snapshot);
5202
5203 buffer.edit(
5204 edits,
5205 Some(AutoindentMode::Block {
5206 original_indent_columns,
5207 }),
5208 cx,
5209 );
5210 });
5211
5212 let selections = this.selections.all::<usize>(cx);
5213 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5214 } else {
5215 this.insert(&clipboard_text, cx);
5216 }
5217 }
5218 });
5219 }
5220
5221 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5222 if self.read_only(cx) {
5223 return;
5224 }
5225
5226 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5227 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5228 self.change_selections(None, cx, |s| {
5229 s.select_anchors(selections.to_vec());
5230 });
5231 }
5232 self.request_autoscroll(Autoscroll::fit(), cx);
5233 self.unmark_text(cx);
5234 self.refresh_copilot_suggestions(true, cx);
5235 cx.emit(EditorEvent::Edited);
5236 }
5237 }
5238
5239 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5240 if self.read_only(cx) {
5241 return;
5242 }
5243
5244 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5245 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5246 {
5247 self.change_selections(None, cx, |s| {
5248 s.select_anchors(selections.to_vec());
5249 });
5250 }
5251 self.request_autoscroll(Autoscroll::fit(), cx);
5252 self.unmark_text(cx);
5253 self.refresh_copilot_suggestions(true, cx);
5254 cx.emit(EditorEvent::Edited);
5255 }
5256 }
5257
5258 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5259 self.buffer
5260 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5261 }
5262
5263 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5265 let line_mode = s.line_mode;
5266 s.move_with(|map, selection| {
5267 let cursor = if selection.is_empty() && !line_mode {
5268 movement::left(map, selection.start)
5269 } else {
5270 selection.start
5271 };
5272 selection.collapse_to(cursor, SelectionGoal::None);
5273 });
5274 })
5275 }
5276
5277 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5279 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5280 })
5281 }
5282
5283 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5284 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5285 let line_mode = s.line_mode;
5286 s.move_with(|map, selection| {
5287 let cursor = if selection.is_empty() && !line_mode {
5288 movement::right(map, selection.end)
5289 } else {
5290 selection.end
5291 };
5292 selection.collapse_to(cursor, SelectionGoal::None)
5293 });
5294 })
5295 }
5296
5297 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5298 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5299 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5300 })
5301 }
5302
5303 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5304 if self.take_rename(true, cx).is_some() {
5305 return;
5306 }
5307
5308 if matches!(self.mode, EditorMode::SingleLine) {
5309 cx.propagate();
5310 return;
5311 }
5312
5313 let text_layout_details = &self.text_layout_details(cx);
5314
5315 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5316 let line_mode = s.line_mode;
5317 s.move_with(|map, selection| {
5318 if !selection.is_empty() && !line_mode {
5319 selection.goal = SelectionGoal::None;
5320 }
5321 let (cursor, goal) = movement::up(
5322 map,
5323 selection.start,
5324 selection.goal,
5325 false,
5326 &text_layout_details,
5327 );
5328 selection.collapse_to(cursor, goal);
5329 });
5330 })
5331 }
5332
5333 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5334 if self.take_rename(true, cx).is_some() {
5335 return;
5336 }
5337
5338 if matches!(self.mode, EditorMode::SingleLine) {
5339 cx.propagate();
5340 return;
5341 }
5342
5343 let row_count = if let Some(row_count) = self.visible_line_count() {
5344 row_count as u32 - 1
5345 } else {
5346 return;
5347 };
5348
5349 let autoscroll = if action.center_cursor {
5350 Autoscroll::center()
5351 } else {
5352 Autoscroll::fit()
5353 };
5354
5355 let text_layout_details = &self.text_layout_details(cx);
5356
5357 self.change_selections(Some(autoscroll), cx, |s| {
5358 let line_mode = s.line_mode;
5359 s.move_with(|map, selection| {
5360 if !selection.is_empty() && !line_mode {
5361 selection.goal = SelectionGoal::None;
5362 }
5363 let (cursor, goal) = movement::up_by_rows(
5364 map,
5365 selection.end,
5366 row_count,
5367 selection.goal,
5368 false,
5369 &text_layout_details,
5370 );
5371 selection.collapse_to(cursor, goal);
5372 });
5373 });
5374 }
5375
5376 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5377 let text_layout_details = &self.text_layout_details(cx);
5378 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5379 s.move_heads_with(|map, head, goal| {
5380 movement::up(map, head, goal, false, &text_layout_details)
5381 })
5382 })
5383 }
5384
5385 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5386 self.take_rename(true, cx);
5387
5388 if self.mode == EditorMode::SingleLine {
5389 cx.propagate();
5390 return;
5391 }
5392
5393 let text_layout_details = &self.text_layout_details(cx);
5394 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5395 let line_mode = s.line_mode;
5396 s.move_with(|map, selection| {
5397 if !selection.is_empty() && !line_mode {
5398 selection.goal = SelectionGoal::None;
5399 }
5400 let (cursor, goal) = movement::down(
5401 map,
5402 selection.end,
5403 selection.goal,
5404 false,
5405 &text_layout_details,
5406 );
5407 selection.collapse_to(cursor, goal);
5408 });
5409 });
5410 }
5411
5412 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5413 if self.take_rename(true, cx).is_some() {
5414 return;
5415 }
5416
5417 if self
5418 .context_menu
5419 .write()
5420 .as_mut()
5421 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5422 .unwrap_or(false)
5423 {
5424 return;
5425 }
5426
5427 if matches!(self.mode, EditorMode::SingleLine) {
5428 cx.propagate();
5429 return;
5430 }
5431
5432 let row_count = if let Some(row_count) = self.visible_line_count() {
5433 row_count as u32 - 1
5434 } else {
5435 return;
5436 };
5437
5438 let autoscroll = if action.center_cursor {
5439 Autoscroll::center()
5440 } else {
5441 Autoscroll::fit()
5442 };
5443
5444 let text_layout_details = &self.text_layout_details(cx);
5445 self.change_selections(Some(autoscroll), cx, |s| {
5446 let line_mode = s.line_mode;
5447 s.move_with(|map, selection| {
5448 if !selection.is_empty() && !line_mode {
5449 selection.goal = SelectionGoal::None;
5450 }
5451 let (cursor, goal) = movement::down_by_rows(
5452 map,
5453 selection.end,
5454 row_count,
5455 selection.goal,
5456 false,
5457 &text_layout_details,
5458 );
5459 selection.collapse_to(cursor, goal);
5460 });
5461 });
5462 }
5463
5464 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5465 let text_layout_details = &self.text_layout_details(cx);
5466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5467 s.move_heads_with(|map, head, goal| {
5468 movement::down(map, head, goal, false, &text_layout_details)
5469 })
5470 });
5471 }
5472
5473 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5474 if let Some(context_menu) = self.context_menu.write().as_mut() {
5475 context_menu.select_first(self.project.as_ref(), cx);
5476 }
5477 }
5478
5479 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5480 if let Some(context_menu) = self.context_menu.write().as_mut() {
5481 context_menu.select_prev(self.project.as_ref(), cx);
5482 }
5483 }
5484
5485 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5486 if let Some(context_menu) = self.context_menu.write().as_mut() {
5487 context_menu.select_next(self.project.as_ref(), cx);
5488 }
5489 }
5490
5491 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5492 if let Some(context_menu) = self.context_menu.write().as_mut() {
5493 context_menu.select_last(self.project.as_ref(), cx);
5494 }
5495 }
5496
5497 pub fn move_to_previous_word_start(
5498 &mut self,
5499 _: &MoveToPreviousWordStart,
5500 cx: &mut ViewContext<Self>,
5501 ) {
5502 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5503 s.move_cursors_with(|map, head, _| {
5504 (
5505 movement::previous_word_start(map, head),
5506 SelectionGoal::None,
5507 )
5508 });
5509 })
5510 }
5511
5512 pub fn move_to_previous_subword_start(
5513 &mut self,
5514 _: &MoveToPreviousSubwordStart,
5515 cx: &mut ViewContext<Self>,
5516 ) {
5517 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5518 s.move_cursors_with(|map, head, _| {
5519 (
5520 movement::previous_subword_start(map, head),
5521 SelectionGoal::None,
5522 )
5523 });
5524 })
5525 }
5526
5527 pub fn select_to_previous_word_start(
5528 &mut self,
5529 _: &SelectToPreviousWordStart,
5530 cx: &mut ViewContext<Self>,
5531 ) {
5532 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5533 s.move_heads_with(|map, head, _| {
5534 (
5535 movement::previous_word_start(map, head),
5536 SelectionGoal::None,
5537 )
5538 });
5539 })
5540 }
5541
5542 pub fn select_to_previous_subword_start(
5543 &mut self,
5544 _: &SelectToPreviousSubwordStart,
5545 cx: &mut ViewContext<Self>,
5546 ) {
5547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5548 s.move_heads_with(|map, head, _| {
5549 (
5550 movement::previous_subword_start(map, head),
5551 SelectionGoal::None,
5552 )
5553 });
5554 })
5555 }
5556
5557 pub fn delete_to_previous_word_start(
5558 &mut self,
5559 _: &DeleteToPreviousWordStart,
5560 cx: &mut ViewContext<Self>,
5561 ) {
5562 self.transact(cx, |this, cx| {
5563 this.select_autoclose_pair(cx);
5564 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5565 let line_mode = s.line_mode;
5566 s.move_with(|map, selection| {
5567 if selection.is_empty() && !line_mode {
5568 let cursor = movement::previous_word_start(map, selection.head());
5569 selection.set_head(cursor, SelectionGoal::None);
5570 }
5571 });
5572 });
5573 this.insert("", cx);
5574 });
5575 }
5576
5577 pub fn delete_to_previous_subword_start(
5578 &mut self,
5579 _: &DeleteToPreviousSubwordStart,
5580 cx: &mut ViewContext<Self>,
5581 ) {
5582 self.transact(cx, |this, cx| {
5583 this.select_autoclose_pair(cx);
5584 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5585 let line_mode = s.line_mode;
5586 s.move_with(|map, selection| {
5587 if selection.is_empty() && !line_mode {
5588 let cursor = movement::previous_subword_start(map, selection.head());
5589 selection.set_head(cursor, SelectionGoal::None);
5590 }
5591 });
5592 });
5593 this.insert("", cx);
5594 });
5595 }
5596
5597 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5599 s.move_cursors_with(|map, head, _| {
5600 (movement::next_word_end(map, head), SelectionGoal::None)
5601 });
5602 })
5603 }
5604
5605 pub fn move_to_next_subword_end(
5606 &mut self,
5607 _: &MoveToNextSubwordEnd,
5608 cx: &mut ViewContext<Self>,
5609 ) {
5610 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5611 s.move_cursors_with(|map, head, _| {
5612 (movement::next_subword_end(map, head), SelectionGoal::None)
5613 });
5614 })
5615 }
5616
5617 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5618 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5619 s.move_heads_with(|map, head, _| {
5620 (movement::next_word_end(map, head), SelectionGoal::None)
5621 });
5622 })
5623 }
5624
5625 pub fn select_to_next_subword_end(
5626 &mut self,
5627 _: &SelectToNextSubwordEnd,
5628 cx: &mut ViewContext<Self>,
5629 ) {
5630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5631 s.move_heads_with(|map, head, _| {
5632 (movement::next_subword_end(map, head), SelectionGoal::None)
5633 });
5634 })
5635 }
5636
5637 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5638 self.transact(cx, |this, cx| {
5639 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5640 let line_mode = s.line_mode;
5641 s.move_with(|map, selection| {
5642 if selection.is_empty() && !line_mode {
5643 let cursor = movement::next_word_end(map, selection.head());
5644 selection.set_head(cursor, SelectionGoal::None);
5645 }
5646 });
5647 });
5648 this.insert("", cx);
5649 });
5650 }
5651
5652 pub fn delete_to_next_subword_end(
5653 &mut self,
5654 _: &DeleteToNextSubwordEnd,
5655 cx: &mut ViewContext<Self>,
5656 ) {
5657 self.transact(cx, |this, cx| {
5658 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5659 s.move_with(|map, selection| {
5660 if selection.is_empty() {
5661 let cursor = movement::next_subword_end(map, selection.head());
5662 selection.set_head(cursor, SelectionGoal::None);
5663 }
5664 });
5665 });
5666 this.insert("", cx);
5667 });
5668 }
5669
5670 pub fn move_to_beginning_of_line(
5671 &mut self,
5672 _: &MoveToBeginningOfLine,
5673 cx: &mut ViewContext<Self>,
5674 ) {
5675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5676 s.move_cursors_with(|map, head, _| {
5677 (
5678 movement::indented_line_beginning(map, head, true),
5679 SelectionGoal::None,
5680 )
5681 });
5682 })
5683 }
5684
5685 pub fn select_to_beginning_of_line(
5686 &mut self,
5687 action: &SelectToBeginningOfLine,
5688 cx: &mut ViewContext<Self>,
5689 ) {
5690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5691 s.move_heads_with(|map, head, _| {
5692 (
5693 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5694 SelectionGoal::None,
5695 )
5696 });
5697 });
5698 }
5699
5700 pub fn delete_to_beginning_of_line(
5701 &mut self,
5702 _: &DeleteToBeginningOfLine,
5703 cx: &mut ViewContext<Self>,
5704 ) {
5705 self.transact(cx, |this, cx| {
5706 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5707 s.move_with(|_, selection| {
5708 selection.reversed = true;
5709 });
5710 });
5711
5712 this.select_to_beginning_of_line(
5713 &SelectToBeginningOfLine {
5714 stop_at_soft_wraps: false,
5715 },
5716 cx,
5717 );
5718 this.backspace(&Backspace, cx);
5719 });
5720 }
5721
5722 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5723 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5724 s.move_cursors_with(|map, head, _| {
5725 (movement::line_end(map, head, true), SelectionGoal::None)
5726 });
5727 })
5728 }
5729
5730 pub fn select_to_end_of_line(
5731 &mut self,
5732 action: &SelectToEndOfLine,
5733 cx: &mut ViewContext<Self>,
5734 ) {
5735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5736 s.move_heads_with(|map, head, _| {
5737 (
5738 movement::line_end(map, head, action.stop_at_soft_wraps),
5739 SelectionGoal::None,
5740 )
5741 });
5742 })
5743 }
5744
5745 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5746 self.transact(cx, |this, cx| {
5747 this.select_to_end_of_line(
5748 &SelectToEndOfLine {
5749 stop_at_soft_wraps: false,
5750 },
5751 cx,
5752 );
5753 this.delete(&Delete, cx);
5754 });
5755 }
5756
5757 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5758 self.transact(cx, |this, cx| {
5759 this.select_to_end_of_line(
5760 &SelectToEndOfLine {
5761 stop_at_soft_wraps: false,
5762 },
5763 cx,
5764 );
5765 this.cut(&Cut, cx);
5766 });
5767 }
5768
5769 pub fn move_to_start_of_paragraph(
5770 &mut self,
5771 _: &MoveToStartOfParagraph,
5772 cx: &mut ViewContext<Self>,
5773 ) {
5774 if matches!(self.mode, EditorMode::SingleLine) {
5775 cx.propagate();
5776 return;
5777 }
5778
5779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5780 s.move_with(|map, selection| {
5781 selection.collapse_to(
5782 movement::start_of_paragraph(map, selection.head(), 1),
5783 SelectionGoal::None,
5784 )
5785 });
5786 })
5787 }
5788
5789 pub fn move_to_end_of_paragraph(
5790 &mut self,
5791 _: &MoveToEndOfParagraph,
5792 cx: &mut ViewContext<Self>,
5793 ) {
5794 if matches!(self.mode, EditorMode::SingleLine) {
5795 cx.propagate();
5796 return;
5797 }
5798
5799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5800 s.move_with(|map, selection| {
5801 selection.collapse_to(
5802 movement::end_of_paragraph(map, selection.head(), 1),
5803 SelectionGoal::None,
5804 )
5805 });
5806 })
5807 }
5808
5809 pub fn select_to_start_of_paragraph(
5810 &mut self,
5811 _: &SelectToStartOfParagraph,
5812 cx: &mut ViewContext<Self>,
5813 ) {
5814 if matches!(self.mode, EditorMode::SingleLine) {
5815 cx.propagate();
5816 return;
5817 }
5818
5819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5820 s.move_heads_with(|map, head, _| {
5821 (
5822 movement::start_of_paragraph(map, head, 1),
5823 SelectionGoal::None,
5824 )
5825 });
5826 })
5827 }
5828
5829 pub fn select_to_end_of_paragraph(
5830 &mut self,
5831 _: &SelectToEndOfParagraph,
5832 cx: &mut ViewContext<Self>,
5833 ) {
5834 if matches!(self.mode, EditorMode::SingleLine) {
5835 cx.propagate();
5836 return;
5837 }
5838
5839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5840 s.move_heads_with(|map, head, _| {
5841 (
5842 movement::end_of_paragraph(map, head, 1),
5843 SelectionGoal::None,
5844 )
5845 });
5846 })
5847 }
5848
5849 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5850 if matches!(self.mode, EditorMode::SingleLine) {
5851 cx.propagate();
5852 return;
5853 }
5854
5855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5856 s.select_ranges(vec![0..0]);
5857 });
5858 }
5859
5860 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5861 let mut selection = self.selections.last::<Point>(cx);
5862 selection.set_head(Point::zero(), SelectionGoal::None);
5863
5864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5865 s.select(vec![selection]);
5866 });
5867 }
5868
5869 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5870 if matches!(self.mode, EditorMode::SingleLine) {
5871 cx.propagate();
5872 return;
5873 }
5874
5875 let cursor = self.buffer.read(cx).read(cx).len();
5876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5877 s.select_ranges(vec![cursor..cursor])
5878 });
5879 }
5880
5881 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5882 self.nav_history = nav_history;
5883 }
5884
5885 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5886 self.nav_history.as_ref()
5887 }
5888
5889 fn push_to_nav_history(
5890 &mut self,
5891 cursor_anchor: Anchor,
5892 new_position: Option<Point>,
5893 cx: &mut ViewContext<Self>,
5894 ) {
5895 if let Some(nav_history) = self.nav_history.as_mut() {
5896 let buffer = self.buffer.read(cx).read(cx);
5897 let cursor_position = cursor_anchor.to_point(&buffer);
5898 let scroll_state = self.scroll_manager.anchor();
5899 let scroll_top_row = scroll_state.top_row(&buffer);
5900 drop(buffer);
5901
5902 if let Some(new_position) = new_position {
5903 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
5904 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
5905 return;
5906 }
5907 }
5908
5909 nav_history.push(
5910 Some(NavigationData {
5911 cursor_anchor,
5912 cursor_position,
5913 scroll_anchor: scroll_state,
5914 scroll_top_row,
5915 }),
5916 cx,
5917 );
5918 }
5919 }
5920
5921 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
5922 let buffer = self.buffer.read(cx).snapshot(cx);
5923 let mut selection = self.selections.first::<usize>(cx);
5924 selection.set_head(buffer.len(), SelectionGoal::None);
5925 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5926 s.select(vec![selection]);
5927 });
5928 }
5929
5930 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
5931 let end = self.buffer.read(cx).read(cx).len();
5932 self.change_selections(None, cx, |s| {
5933 s.select_ranges(vec![0..end]);
5934 });
5935 }
5936
5937 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
5938 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5939 let mut selections = self.selections.all::<Point>(cx);
5940 let max_point = display_map.buffer_snapshot.max_point();
5941 for selection in &mut selections {
5942 let rows = selection.spanned_rows(true, &display_map);
5943 selection.start = Point::new(rows.start, 0);
5944 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
5945 selection.reversed = false;
5946 }
5947 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5948 s.select(selections);
5949 });
5950 }
5951
5952 pub fn split_selection_into_lines(
5953 &mut self,
5954 _: &SplitSelectionIntoLines,
5955 cx: &mut ViewContext<Self>,
5956 ) {
5957 let mut to_unfold = Vec::new();
5958 let mut new_selection_ranges = Vec::new();
5959 {
5960 let selections = self.selections.all::<Point>(cx);
5961 let buffer = self.buffer.read(cx).read(cx);
5962 for selection in selections {
5963 for row in selection.start.row..selection.end.row {
5964 let cursor = Point::new(row, buffer.line_len(row));
5965 new_selection_ranges.push(cursor..cursor);
5966 }
5967 new_selection_ranges.push(selection.end..selection.end);
5968 to_unfold.push(selection.start..selection.end);
5969 }
5970 }
5971 self.unfold_ranges(to_unfold, true, true, cx);
5972 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5973 s.select_ranges(new_selection_ranges);
5974 });
5975 }
5976
5977 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
5978 self.add_selection(true, cx);
5979 }
5980
5981 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
5982 self.add_selection(false, cx);
5983 }
5984
5985 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
5986 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5987 let mut selections = self.selections.all::<Point>(cx);
5988 let text_layout_details = self.text_layout_details(cx);
5989 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
5990 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
5991 let range = oldest_selection.display_range(&display_map).sorted();
5992
5993 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
5994 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
5995 let positions = start_x.min(end_x)..start_x.max(end_x);
5996
5997 selections.clear();
5998 let mut stack = Vec::new();
5999 for row in range.start.row()..=range.end.row() {
6000 if let Some(selection) = self.selections.build_columnar_selection(
6001 &display_map,
6002 row,
6003 &positions,
6004 oldest_selection.reversed,
6005 &text_layout_details,
6006 ) {
6007 stack.push(selection.id);
6008 selections.push(selection);
6009 }
6010 }
6011
6012 if above {
6013 stack.reverse();
6014 }
6015
6016 AddSelectionsState { above, stack }
6017 });
6018
6019 let last_added_selection = *state.stack.last().unwrap();
6020 let mut new_selections = Vec::new();
6021 if above == state.above {
6022 let end_row = if above {
6023 0
6024 } else {
6025 display_map.max_point().row()
6026 };
6027
6028 'outer: for selection in selections {
6029 if selection.id == last_added_selection {
6030 let range = selection.display_range(&display_map).sorted();
6031 debug_assert_eq!(range.start.row(), range.end.row());
6032 let mut row = range.start.row();
6033 let positions =
6034 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6035 px(start)..px(end)
6036 } else {
6037 let start_x =
6038 display_map.x_for_display_point(range.start, &text_layout_details);
6039 let end_x =
6040 display_map.x_for_display_point(range.end, &text_layout_details);
6041 start_x.min(end_x)..start_x.max(end_x)
6042 };
6043
6044 while row != end_row {
6045 if above {
6046 row -= 1;
6047 } else {
6048 row += 1;
6049 }
6050
6051 if let Some(new_selection) = self.selections.build_columnar_selection(
6052 &display_map,
6053 row,
6054 &positions,
6055 selection.reversed,
6056 &text_layout_details,
6057 ) {
6058 state.stack.push(new_selection.id);
6059 if above {
6060 new_selections.push(new_selection);
6061 new_selections.push(selection);
6062 } else {
6063 new_selections.push(selection);
6064 new_selections.push(new_selection);
6065 }
6066
6067 continue 'outer;
6068 }
6069 }
6070 }
6071
6072 new_selections.push(selection);
6073 }
6074 } else {
6075 new_selections = selections;
6076 new_selections.retain(|s| s.id != last_added_selection);
6077 state.stack.pop();
6078 }
6079
6080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6081 s.select(new_selections);
6082 });
6083 if state.stack.len() > 1 {
6084 self.add_selections_state = Some(state);
6085 }
6086 }
6087
6088 pub fn select_next_match_internal(
6089 &mut self,
6090 display_map: &DisplaySnapshot,
6091 replace_newest: bool,
6092 autoscroll: Option<Autoscroll>,
6093 cx: &mut ViewContext<Self>,
6094 ) -> Result<()> {
6095 fn select_next_match_ranges(
6096 this: &mut Editor,
6097 range: Range<usize>,
6098 replace_newest: bool,
6099 auto_scroll: Option<Autoscroll>,
6100 cx: &mut ViewContext<Editor>,
6101 ) {
6102 this.unfold_ranges([range.clone()], false, true, cx);
6103 this.change_selections(auto_scroll, cx, |s| {
6104 if replace_newest {
6105 s.delete(s.newest_anchor().id);
6106 }
6107 s.insert_range(range.clone());
6108 });
6109 }
6110
6111 let buffer = &display_map.buffer_snapshot;
6112 let mut selections = self.selections.all::<usize>(cx);
6113 if let Some(mut select_next_state) = self.select_next_state.take() {
6114 let query = &select_next_state.query;
6115 if !select_next_state.done {
6116 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6117 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6118 let mut next_selected_range = None;
6119
6120 let bytes_after_last_selection =
6121 buffer.bytes_in_range(last_selection.end..buffer.len());
6122 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6123 let query_matches = query
6124 .stream_find_iter(bytes_after_last_selection)
6125 .map(|result| (last_selection.end, result))
6126 .chain(
6127 query
6128 .stream_find_iter(bytes_before_first_selection)
6129 .map(|result| (0, result)),
6130 );
6131
6132 for (start_offset, query_match) in query_matches {
6133 let query_match = query_match.unwrap(); // can only fail due to I/O
6134 let offset_range =
6135 start_offset + query_match.start()..start_offset + query_match.end();
6136 let display_range = offset_range.start.to_display_point(&display_map)
6137 ..offset_range.end.to_display_point(&display_map);
6138
6139 if !select_next_state.wordwise
6140 || (!movement::is_inside_word(&display_map, display_range.start)
6141 && !movement::is_inside_word(&display_map, display_range.end))
6142 {
6143 // TODO: This is n^2, because we might check all the selections
6144 if selections
6145 .iter()
6146 .find(|selection| selection.range().overlaps(&offset_range))
6147 .is_none()
6148 {
6149 next_selected_range = Some(offset_range);
6150 break;
6151 }
6152 }
6153 }
6154
6155 if let Some(next_selected_range) = next_selected_range {
6156 select_next_match_ranges(
6157 self,
6158 next_selected_range,
6159 replace_newest,
6160 autoscroll,
6161 cx,
6162 );
6163 } else {
6164 select_next_state.done = true;
6165 }
6166 }
6167
6168 self.select_next_state = Some(select_next_state);
6169 } else {
6170 let mut only_carets = true;
6171 let mut same_text_selected = true;
6172 let mut selected_text = None;
6173
6174 let mut selections_iter = selections.iter().peekable();
6175 while let Some(selection) = selections_iter.next() {
6176 if selection.start != selection.end {
6177 only_carets = false;
6178 }
6179
6180 if same_text_selected {
6181 if selected_text.is_none() {
6182 selected_text =
6183 Some(buffer.text_for_range(selection.range()).collect::<String>());
6184 }
6185
6186 if let Some(next_selection) = selections_iter.peek() {
6187 if next_selection.range().len() == selection.range().len() {
6188 let next_selected_text = buffer
6189 .text_for_range(next_selection.range())
6190 .collect::<String>();
6191 if Some(next_selected_text) != selected_text {
6192 same_text_selected = false;
6193 selected_text = None;
6194 }
6195 } else {
6196 same_text_selected = false;
6197 selected_text = None;
6198 }
6199 }
6200 }
6201 }
6202
6203 if only_carets {
6204 for selection in &mut selections {
6205 let word_range = movement::surrounding_word(
6206 &display_map,
6207 selection.start.to_display_point(&display_map),
6208 );
6209 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6210 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6211 selection.goal = SelectionGoal::None;
6212 selection.reversed = false;
6213 select_next_match_ranges(
6214 self,
6215 selection.start..selection.end,
6216 replace_newest,
6217 autoscroll,
6218 cx,
6219 );
6220 }
6221
6222 if selections.len() == 1 {
6223 let selection = selections
6224 .last()
6225 .expect("ensured that there's only one selection");
6226 let query = buffer
6227 .text_for_range(selection.start..selection.end)
6228 .collect::<String>();
6229 let is_empty = query.is_empty();
6230 let select_state = SelectNextState {
6231 query: AhoCorasick::new(&[query])?,
6232 wordwise: true,
6233 done: is_empty,
6234 };
6235 self.select_next_state = Some(select_state);
6236 } else {
6237 self.select_next_state = None;
6238 }
6239 } else if let Some(selected_text) = selected_text {
6240 self.select_next_state = Some(SelectNextState {
6241 query: AhoCorasick::new(&[selected_text])?,
6242 wordwise: false,
6243 done: false,
6244 });
6245 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6246 }
6247 }
6248 Ok(())
6249 }
6250
6251 pub fn select_all_matches(
6252 &mut self,
6253 _action: &SelectAllMatches,
6254 cx: &mut ViewContext<Self>,
6255 ) -> Result<()> {
6256 self.push_to_selection_history();
6257 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6258
6259 self.select_next_match_internal(&display_map, false, None, cx)?;
6260 let Some(select_next_state) = self.select_next_state.as_mut() else {
6261 return Ok(());
6262 };
6263 if select_next_state.done {
6264 return Ok(());
6265 }
6266
6267 let mut new_selections = self.selections.all::<usize>(cx);
6268
6269 let buffer = &display_map.buffer_snapshot;
6270 let query_matches = select_next_state
6271 .query
6272 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6273
6274 for query_match in query_matches {
6275 let query_match = query_match.unwrap(); // can only fail due to I/O
6276 let offset_range = query_match.start()..query_match.end();
6277 let display_range = offset_range.start.to_display_point(&display_map)
6278 ..offset_range.end.to_display_point(&display_map);
6279
6280 if !select_next_state.wordwise
6281 || (!movement::is_inside_word(&display_map, display_range.start)
6282 && !movement::is_inside_word(&display_map, display_range.end))
6283 {
6284 self.selections.change_with(cx, |selections| {
6285 new_selections.push(Selection {
6286 id: selections.new_selection_id(),
6287 start: offset_range.start,
6288 end: offset_range.end,
6289 reversed: false,
6290 goal: SelectionGoal::None,
6291 });
6292 });
6293 }
6294 }
6295
6296 new_selections.sort_by_key(|selection| selection.start);
6297 let mut ix = 0;
6298 while ix + 1 < new_selections.len() {
6299 let current_selection = &new_selections[ix];
6300 let next_selection = &new_selections[ix + 1];
6301 if current_selection.range().overlaps(&next_selection.range()) {
6302 if current_selection.id < next_selection.id {
6303 new_selections.remove(ix + 1);
6304 } else {
6305 new_selections.remove(ix);
6306 }
6307 } else {
6308 ix += 1;
6309 }
6310 }
6311
6312 select_next_state.done = true;
6313 self.unfold_ranges(
6314 new_selections.iter().map(|selection| selection.range()),
6315 false,
6316 false,
6317 cx,
6318 );
6319 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6320 selections.select(new_selections)
6321 });
6322
6323 Ok(())
6324 }
6325
6326 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6327 self.push_to_selection_history();
6328 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6329 self.select_next_match_internal(
6330 &display_map,
6331 action.replace_newest,
6332 Some(Autoscroll::newest()),
6333 cx,
6334 )?;
6335 Ok(())
6336 }
6337
6338 pub fn select_previous(
6339 &mut self,
6340 action: &SelectPrevious,
6341 cx: &mut ViewContext<Self>,
6342 ) -> Result<()> {
6343 self.push_to_selection_history();
6344 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6345 let buffer = &display_map.buffer_snapshot;
6346 let mut selections = self.selections.all::<usize>(cx);
6347 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6348 let query = &select_prev_state.query;
6349 if !select_prev_state.done {
6350 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6351 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6352 let mut next_selected_range = None;
6353 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6354 let bytes_before_last_selection =
6355 buffer.reversed_bytes_in_range(0..last_selection.start);
6356 let bytes_after_first_selection =
6357 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6358 let query_matches = query
6359 .stream_find_iter(bytes_before_last_selection)
6360 .map(|result| (last_selection.start, result))
6361 .chain(
6362 query
6363 .stream_find_iter(bytes_after_first_selection)
6364 .map(|result| (buffer.len(), result)),
6365 );
6366 for (end_offset, query_match) in query_matches {
6367 let query_match = query_match.unwrap(); // can only fail due to I/O
6368 let offset_range =
6369 end_offset - query_match.end()..end_offset - query_match.start();
6370 let display_range = offset_range.start.to_display_point(&display_map)
6371 ..offset_range.end.to_display_point(&display_map);
6372
6373 if !select_prev_state.wordwise
6374 || (!movement::is_inside_word(&display_map, display_range.start)
6375 && !movement::is_inside_word(&display_map, display_range.end))
6376 {
6377 next_selected_range = Some(offset_range);
6378 break;
6379 }
6380 }
6381
6382 if let Some(next_selected_range) = next_selected_range {
6383 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6384 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6385 if action.replace_newest {
6386 s.delete(s.newest_anchor().id);
6387 }
6388 s.insert_range(next_selected_range);
6389 });
6390 } else {
6391 select_prev_state.done = true;
6392 }
6393 }
6394
6395 self.select_prev_state = Some(select_prev_state);
6396 } else {
6397 let mut only_carets = true;
6398 let mut same_text_selected = true;
6399 let mut selected_text = None;
6400
6401 let mut selections_iter = selections.iter().peekable();
6402 while let Some(selection) = selections_iter.next() {
6403 if selection.start != selection.end {
6404 only_carets = false;
6405 }
6406
6407 if same_text_selected {
6408 if selected_text.is_none() {
6409 selected_text =
6410 Some(buffer.text_for_range(selection.range()).collect::<String>());
6411 }
6412
6413 if let Some(next_selection) = selections_iter.peek() {
6414 if next_selection.range().len() == selection.range().len() {
6415 let next_selected_text = buffer
6416 .text_for_range(next_selection.range())
6417 .collect::<String>();
6418 if Some(next_selected_text) != selected_text {
6419 same_text_selected = false;
6420 selected_text = None;
6421 }
6422 } else {
6423 same_text_selected = false;
6424 selected_text = None;
6425 }
6426 }
6427 }
6428 }
6429
6430 if only_carets {
6431 for selection in &mut selections {
6432 let word_range = movement::surrounding_word(
6433 &display_map,
6434 selection.start.to_display_point(&display_map),
6435 );
6436 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6437 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6438 selection.goal = SelectionGoal::None;
6439 selection.reversed = false;
6440 }
6441 if selections.len() == 1 {
6442 let selection = selections
6443 .last()
6444 .expect("ensured that there's only one selection");
6445 let query = buffer
6446 .text_for_range(selection.start..selection.end)
6447 .collect::<String>();
6448 let is_empty = query.is_empty();
6449 let select_state = SelectNextState {
6450 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6451 wordwise: true,
6452 done: is_empty,
6453 };
6454 self.select_prev_state = Some(select_state);
6455 } else {
6456 self.select_prev_state = None;
6457 }
6458
6459 self.unfold_ranges(
6460 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6461 false,
6462 true,
6463 cx,
6464 );
6465 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6466 s.select(selections);
6467 });
6468 } else if let Some(selected_text) = selected_text {
6469 self.select_prev_state = Some(SelectNextState {
6470 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6471 wordwise: false,
6472 done: false,
6473 });
6474 self.select_previous(action, cx)?;
6475 }
6476 }
6477 Ok(())
6478 }
6479
6480 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6481 let text_layout_details = &self.text_layout_details(cx);
6482 self.transact(cx, |this, cx| {
6483 let mut selections = this.selections.all::<Point>(cx);
6484 let mut edits = Vec::new();
6485 let mut selection_edit_ranges = Vec::new();
6486 let mut last_toggled_row = None;
6487 let snapshot = this.buffer.read(cx).read(cx);
6488 let empty_str: Arc<str> = "".into();
6489 let mut suffixes_inserted = Vec::new();
6490
6491 fn comment_prefix_range(
6492 snapshot: &MultiBufferSnapshot,
6493 row: u32,
6494 comment_prefix: &str,
6495 comment_prefix_whitespace: &str,
6496 ) -> Range<Point> {
6497 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6498
6499 let mut line_bytes = snapshot
6500 .bytes_in_range(start..snapshot.max_point())
6501 .flatten()
6502 .copied();
6503
6504 // If this line currently begins with the line comment prefix, then record
6505 // the range containing the prefix.
6506 if line_bytes
6507 .by_ref()
6508 .take(comment_prefix.len())
6509 .eq(comment_prefix.bytes())
6510 {
6511 // Include any whitespace that matches the comment prefix.
6512 let matching_whitespace_len = line_bytes
6513 .zip(comment_prefix_whitespace.bytes())
6514 .take_while(|(a, b)| a == b)
6515 .count() as u32;
6516 let end = Point::new(
6517 start.row,
6518 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6519 );
6520 start..end
6521 } else {
6522 start..start
6523 }
6524 }
6525
6526 fn comment_suffix_range(
6527 snapshot: &MultiBufferSnapshot,
6528 row: u32,
6529 comment_suffix: &str,
6530 comment_suffix_has_leading_space: bool,
6531 ) -> Range<Point> {
6532 let end = Point::new(row, snapshot.line_len(row));
6533 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6534
6535 let mut line_end_bytes = snapshot
6536 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6537 .flatten()
6538 .copied();
6539
6540 let leading_space_len = if suffix_start_column > 0
6541 && line_end_bytes.next() == Some(b' ')
6542 && comment_suffix_has_leading_space
6543 {
6544 1
6545 } else {
6546 0
6547 };
6548
6549 // If this line currently begins with the line comment prefix, then record
6550 // the range containing the prefix.
6551 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6552 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6553 start..end
6554 } else {
6555 end..end
6556 }
6557 }
6558
6559 // TODO: Handle selections that cross excerpts
6560 for selection in &mut selections {
6561 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6562 let language = if let Some(language) =
6563 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6564 {
6565 language
6566 } else {
6567 continue;
6568 };
6569
6570 selection_edit_ranges.clear();
6571
6572 // If multiple selections contain a given row, avoid processing that
6573 // row more than once.
6574 let mut start_row = selection.start.row;
6575 if last_toggled_row == Some(start_row) {
6576 start_row += 1;
6577 }
6578 let end_row =
6579 if selection.end.row > selection.start.row && selection.end.column == 0 {
6580 selection.end.row - 1
6581 } else {
6582 selection.end.row
6583 };
6584 last_toggled_row = Some(end_row);
6585
6586 if start_row > end_row {
6587 continue;
6588 }
6589
6590 // If the language has line comments, toggle those.
6591 if let Some(full_comment_prefix) = language
6592 .line_comment_prefixes()
6593 .and_then(|prefixes| prefixes.first())
6594 {
6595 // Split the comment prefix's trailing whitespace into a separate string,
6596 // as that portion won't be used for detecting if a line is a comment.
6597 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6598 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6599 let mut all_selection_lines_are_comments = true;
6600
6601 for row in start_row..=end_row {
6602 if start_row < end_row && snapshot.is_line_blank(row) {
6603 continue;
6604 }
6605
6606 let prefix_range = comment_prefix_range(
6607 snapshot.deref(),
6608 row,
6609 comment_prefix,
6610 comment_prefix_whitespace,
6611 );
6612 if prefix_range.is_empty() {
6613 all_selection_lines_are_comments = false;
6614 }
6615 selection_edit_ranges.push(prefix_range);
6616 }
6617
6618 if all_selection_lines_are_comments {
6619 edits.extend(
6620 selection_edit_ranges
6621 .iter()
6622 .cloned()
6623 .map(|range| (range, empty_str.clone())),
6624 );
6625 } else {
6626 let min_column = selection_edit_ranges
6627 .iter()
6628 .map(|r| r.start.column)
6629 .min()
6630 .unwrap_or(0);
6631 edits.extend(selection_edit_ranges.iter().map(|range| {
6632 let position = Point::new(range.start.row, min_column);
6633 (position..position, full_comment_prefix.clone())
6634 }));
6635 }
6636 } else if let Some((full_comment_prefix, comment_suffix)) =
6637 language.block_comment_delimiters()
6638 {
6639 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6640 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6641 let prefix_range = comment_prefix_range(
6642 snapshot.deref(),
6643 start_row,
6644 comment_prefix,
6645 comment_prefix_whitespace,
6646 );
6647 let suffix_range = comment_suffix_range(
6648 snapshot.deref(),
6649 end_row,
6650 comment_suffix.trim_start_matches(' '),
6651 comment_suffix.starts_with(' '),
6652 );
6653
6654 if prefix_range.is_empty() || suffix_range.is_empty() {
6655 edits.push((
6656 prefix_range.start..prefix_range.start,
6657 full_comment_prefix.clone(),
6658 ));
6659 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6660 suffixes_inserted.push((end_row, comment_suffix.len()));
6661 } else {
6662 edits.push((prefix_range, empty_str.clone()));
6663 edits.push((suffix_range, empty_str.clone()));
6664 }
6665 } else {
6666 continue;
6667 }
6668 }
6669
6670 drop(snapshot);
6671 this.buffer.update(cx, |buffer, cx| {
6672 buffer.edit(edits, None, cx);
6673 });
6674
6675 // Adjust selections so that they end before any comment suffixes that
6676 // were inserted.
6677 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6678 let mut selections = this.selections.all::<Point>(cx);
6679 let snapshot = this.buffer.read(cx).read(cx);
6680 for selection in &mut selections {
6681 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6682 match row.cmp(&selection.end.row) {
6683 Ordering::Less => {
6684 suffixes_inserted.next();
6685 continue;
6686 }
6687 Ordering::Greater => break,
6688 Ordering::Equal => {
6689 if selection.end.column == snapshot.line_len(row) {
6690 if selection.is_empty() {
6691 selection.start.column -= suffix_len as u32;
6692 }
6693 selection.end.column -= suffix_len as u32;
6694 }
6695 break;
6696 }
6697 }
6698 }
6699 }
6700
6701 drop(snapshot);
6702 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6703
6704 let selections = this.selections.all::<Point>(cx);
6705 let selections_on_single_row = selections.windows(2).all(|selections| {
6706 selections[0].start.row == selections[1].start.row
6707 && selections[0].end.row == selections[1].end.row
6708 && selections[0].start.row == selections[0].end.row
6709 });
6710 let selections_selecting = selections
6711 .iter()
6712 .any(|selection| selection.start != selection.end);
6713 let advance_downwards = action.advance_downwards
6714 && selections_on_single_row
6715 && !selections_selecting
6716 && this.mode != EditorMode::SingleLine;
6717
6718 if advance_downwards {
6719 let snapshot = this.buffer.read(cx).snapshot(cx);
6720
6721 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6722 s.move_cursors_with(|display_snapshot, display_point, _| {
6723 let mut point = display_point.to_point(display_snapshot);
6724 point.row += 1;
6725 point = snapshot.clip_point(point, Bias::Left);
6726 let display_point = point.to_display_point(display_snapshot);
6727 let goal = SelectionGoal::HorizontalPosition(
6728 display_snapshot
6729 .x_for_display_point(display_point, &text_layout_details)
6730 .into(),
6731 );
6732 (display_point, goal)
6733 })
6734 });
6735 }
6736 });
6737 }
6738
6739 pub fn select_larger_syntax_node(
6740 &mut self,
6741 _: &SelectLargerSyntaxNode,
6742 cx: &mut ViewContext<Self>,
6743 ) {
6744 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6745 let buffer = self.buffer.read(cx).snapshot(cx);
6746 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6747
6748 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6749 let mut selected_larger_node = false;
6750 let new_selections = old_selections
6751 .iter()
6752 .map(|selection| {
6753 let old_range = selection.start..selection.end;
6754 let mut new_range = old_range.clone();
6755 while let Some(containing_range) =
6756 buffer.range_for_syntax_ancestor(new_range.clone())
6757 {
6758 new_range = containing_range;
6759 if !display_map.intersects_fold(new_range.start)
6760 && !display_map.intersects_fold(new_range.end)
6761 {
6762 break;
6763 }
6764 }
6765
6766 selected_larger_node |= new_range != old_range;
6767 Selection {
6768 id: selection.id,
6769 start: new_range.start,
6770 end: new_range.end,
6771 goal: SelectionGoal::None,
6772 reversed: selection.reversed,
6773 }
6774 })
6775 .collect::<Vec<_>>();
6776
6777 if selected_larger_node {
6778 stack.push(old_selections);
6779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6780 s.select(new_selections);
6781 });
6782 }
6783 self.select_larger_syntax_node_stack = stack;
6784 }
6785
6786 pub fn select_smaller_syntax_node(
6787 &mut self,
6788 _: &SelectSmallerSyntaxNode,
6789 cx: &mut ViewContext<Self>,
6790 ) {
6791 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6792 if let Some(selections) = stack.pop() {
6793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6794 s.select(selections.to_vec());
6795 });
6796 }
6797 self.select_larger_syntax_node_stack = stack;
6798 }
6799
6800 pub fn move_to_enclosing_bracket(
6801 &mut self,
6802 _: &MoveToEnclosingBracket,
6803 cx: &mut ViewContext<Self>,
6804 ) {
6805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6806 s.move_offsets_with(|snapshot, selection| {
6807 let Some(enclosing_bracket_ranges) =
6808 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6809 else {
6810 return;
6811 };
6812
6813 let mut best_length = usize::MAX;
6814 let mut best_inside = false;
6815 let mut best_in_bracket_range = false;
6816 let mut best_destination = None;
6817 for (open, close) in enclosing_bracket_ranges {
6818 let close = close.to_inclusive();
6819 let length = close.end() - open.start;
6820 let inside = selection.start >= open.end && selection.end <= *close.start();
6821 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6822 || close.contains(&selection.head());
6823
6824 // If best is next to a bracket and current isn't, skip
6825 if !in_bracket_range && best_in_bracket_range {
6826 continue;
6827 }
6828
6829 // Prefer smaller lengths unless best is inside and current isn't
6830 if length > best_length && (best_inside || !inside) {
6831 continue;
6832 }
6833
6834 best_length = length;
6835 best_inside = inside;
6836 best_in_bracket_range = in_bracket_range;
6837 best_destination = Some(
6838 if close.contains(&selection.start) && close.contains(&selection.end) {
6839 if inside {
6840 open.end
6841 } else {
6842 open.start
6843 }
6844 } else {
6845 if inside {
6846 *close.start()
6847 } else {
6848 *close.end()
6849 }
6850 },
6851 );
6852 }
6853
6854 if let Some(destination) = best_destination {
6855 selection.collapse_to(destination, SelectionGoal::None);
6856 }
6857 })
6858 });
6859 }
6860
6861 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6862 self.end_selection(cx);
6863 self.selection_history.mode = SelectionHistoryMode::Undoing;
6864 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6865 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6866 self.select_next_state = entry.select_next_state;
6867 self.select_prev_state = entry.select_prev_state;
6868 self.add_selections_state = entry.add_selections_state;
6869 self.request_autoscroll(Autoscroll::newest(), cx);
6870 }
6871 self.selection_history.mode = SelectionHistoryMode::Normal;
6872 }
6873
6874 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6875 self.end_selection(cx);
6876 self.selection_history.mode = SelectionHistoryMode::Redoing;
6877 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6878 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6879 self.select_next_state = entry.select_next_state;
6880 self.select_prev_state = entry.select_prev_state;
6881 self.add_selections_state = entry.add_selections_state;
6882 self.request_autoscroll(Autoscroll::newest(), cx);
6883 }
6884 self.selection_history.mode = SelectionHistoryMode::Normal;
6885 }
6886
6887 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6888 self.go_to_diagnostic_impl(Direction::Next, cx)
6889 }
6890
6891 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6892 self.go_to_diagnostic_impl(Direction::Prev, cx)
6893 }
6894
6895 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6896 let buffer = self.buffer.read(cx).snapshot(cx);
6897 let selection = self.selections.newest::<usize>(cx);
6898
6899 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6900 if direction == Direction::Next {
6901 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6902 let (group_id, jump_to) = popover.activation_info();
6903 if self.activate_diagnostics(group_id, cx) {
6904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6905 let mut new_selection = s.newest_anchor().clone();
6906 new_selection.collapse_to(jump_to, SelectionGoal::None);
6907 s.select_anchors(vec![new_selection.clone()]);
6908 });
6909 }
6910 return;
6911 }
6912 }
6913
6914 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6915 active_diagnostics
6916 .primary_range
6917 .to_offset(&buffer)
6918 .to_inclusive()
6919 });
6920 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6921 if active_primary_range.contains(&selection.head()) {
6922 *active_primary_range.end()
6923 } else {
6924 selection.head()
6925 }
6926 } else {
6927 selection.head()
6928 };
6929
6930 loop {
6931 let mut diagnostics = if direction == Direction::Prev {
6932 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6933 } else {
6934 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6935 };
6936 let group = diagnostics.find_map(|entry| {
6937 if entry.diagnostic.is_primary
6938 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6939 && !entry.range.is_empty()
6940 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6941 && !entry.range.contains(&search_start)
6942 {
6943 Some((entry.range, entry.diagnostic.group_id))
6944 } else {
6945 None
6946 }
6947 });
6948
6949 if let Some((primary_range, group_id)) = group {
6950 if self.activate_diagnostics(group_id, cx) {
6951 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6952 s.select(vec![Selection {
6953 id: selection.id,
6954 start: primary_range.start,
6955 end: primary_range.start,
6956 reversed: false,
6957 goal: SelectionGoal::None,
6958 }]);
6959 });
6960 }
6961 break;
6962 } else {
6963 // Cycle around to the start of the buffer, potentially moving back to the start of
6964 // the currently active diagnostic.
6965 active_primary_range.take();
6966 if direction == Direction::Prev {
6967 if search_start == buffer.len() {
6968 break;
6969 } else {
6970 search_start = buffer.len();
6971 }
6972 } else if search_start == 0 {
6973 break;
6974 } else {
6975 search_start = 0;
6976 }
6977 }
6978 }
6979 }
6980
6981 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
6982 let snapshot = self
6983 .display_map
6984 .update(cx, |display_map, cx| display_map.snapshot(cx));
6985 let selection = self.selections.newest::<Point>(cx);
6986
6987 if !self.seek_in_direction(
6988 &snapshot,
6989 selection.head(),
6990 false,
6991 snapshot
6992 .buffer_snapshot
6993 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
6994 cx,
6995 ) {
6996 let wrapped_point = Point::zero();
6997 self.seek_in_direction(
6998 &snapshot,
6999 wrapped_point,
7000 true,
7001 snapshot
7002 .buffer_snapshot
7003 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7004 cx,
7005 );
7006 }
7007 }
7008
7009 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7010 let snapshot = self
7011 .display_map
7012 .update(cx, |display_map, cx| display_map.snapshot(cx));
7013 let selection = self.selections.newest::<Point>(cx);
7014
7015 if !self.seek_in_direction(
7016 &snapshot,
7017 selection.head(),
7018 false,
7019 snapshot
7020 .buffer_snapshot
7021 .git_diff_hunks_in_range_rev(0..selection.head().row),
7022 cx,
7023 ) {
7024 let wrapped_point = snapshot.buffer_snapshot.max_point();
7025 self.seek_in_direction(
7026 &snapshot,
7027 wrapped_point,
7028 true,
7029 snapshot
7030 .buffer_snapshot
7031 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7032 cx,
7033 );
7034 }
7035 }
7036
7037 fn seek_in_direction(
7038 &mut self,
7039 snapshot: &DisplaySnapshot,
7040 initial_point: Point,
7041 is_wrapped: bool,
7042 hunks: impl Iterator<Item = DiffHunk<u32>>,
7043 cx: &mut ViewContext<Editor>,
7044 ) -> bool {
7045 let display_point = initial_point.to_display_point(snapshot);
7046 let mut hunks = hunks
7047 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7048 .filter(|hunk| {
7049 if is_wrapped {
7050 true
7051 } else {
7052 !hunk.contains_display_row(display_point.row())
7053 }
7054 })
7055 .dedup();
7056
7057 if let Some(hunk) = hunks.next() {
7058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7059 let row = hunk.start_display_row();
7060 let point = DisplayPoint::new(row, 0);
7061 s.select_display_ranges([point..point]);
7062 });
7063
7064 true
7065 } else {
7066 false
7067 }
7068 }
7069
7070 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7071 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7072 }
7073
7074 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7075 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7076 }
7077
7078 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7079 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7080 }
7081
7082 pub fn go_to_type_definition_split(
7083 &mut self,
7084 _: &GoToTypeDefinitionSplit,
7085 cx: &mut ViewContext<Self>,
7086 ) {
7087 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7088 }
7089
7090 fn go_to_definition_of_kind(
7091 &mut self,
7092 kind: GotoDefinitionKind,
7093 split: bool,
7094 cx: &mut ViewContext<Self>,
7095 ) {
7096 let Some(workspace) = self.workspace() else {
7097 return;
7098 };
7099 let buffer = self.buffer.read(cx);
7100 let head = self.selections.newest::<usize>(cx).head();
7101 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7102 text_anchor
7103 } else {
7104 return;
7105 };
7106
7107 let project = workspace.read(cx).project().clone();
7108 let definitions = project.update(cx, |project, cx| match kind {
7109 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7110 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7111 });
7112
7113 cx.spawn(|editor, mut cx| async move {
7114 let definitions = definitions.await?;
7115 editor.update(&mut cx, |editor, cx| {
7116 editor.navigate_to_definitions(
7117 definitions
7118 .into_iter()
7119 .map(GoToDefinitionLink::Text)
7120 .collect(),
7121 split,
7122 cx,
7123 );
7124 })?;
7125 Ok::<(), anyhow::Error>(())
7126 })
7127 .detach_and_log_err(cx);
7128 }
7129
7130 pub fn navigate_to_definitions(
7131 &mut self,
7132 mut definitions: Vec<GoToDefinitionLink>,
7133 split: bool,
7134 cx: &mut ViewContext<Editor>,
7135 ) {
7136 let Some(workspace) = self.workspace() else {
7137 return;
7138 };
7139 let pane = workspace.read(cx).active_pane().clone();
7140 // If there is one definition, just open it directly
7141 if definitions.len() == 1 {
7142 let definition = definitions.pop().unwrap();
7143 let target_task = match definition {
7144 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7145 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7146 self.compute_target_location(lsp_location, server_id, cx)
7147 }
7148 };
7149 cx.spawn(|editor, mut cx| async move {
7150 let target = target_task.await.context("target resolution task")?;
7151 if let Some(target) = target {
7152 editor.update(&mut cx, |editor, cx| {
7153 let range = target.range.to_offset(target.buffer.read(cx));
7154 let range = editor.range_for_match(&range);
7155 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7156 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7157 s.select_ranges([range]);
7158 });
7159 } else {
7160 cx.window_context().defer(move |cx| {
7161 let target_editor: View<Self> =
7162 workspace.update(cx, |workspace, cx| {
7163 if split {
7164 workspace.split_project_item(target.buffer.clone(), cx)
7165 } else {
7166 workspace.open_project_item(target.buffer.clone(), cx)
7167 }
7168 });
7169 target_editor.update(cx, |target_editor, cx| {
7170 // When selecting a definition in a different buffer, disable the nav history
7171 // to avoid creating a history entry at the previous cursor location.
7172 pane.update(cx, |pane, _| pane.disable_history());
7173 target_editor.change_selections(
7174 Some(Autoscroll::fit()),
7175 cx,
7176 |s| {
7177 s.select_ranges([range]);
7178 },
7179 );
7180 pane.update(cx, |pane, _| pane.enable_history());
7181 });
7182 });
7183 }
7184 })
7185 } else {
7186 Ok(())
7187 }
7188 })
7189 .detach_and_log_err(cx);
7190 } else if !definitions.is_empty() {
7191 let replica_id = self.replica_id(cx);
7192 cx.spawn(|editor, mut cx| async move {
7193 let (title, location_tasks) = editor
7194 .update(&mut cx, |editor, cx| {
7195 let title = definitions
7196 .iter()
7197 .find_map(|definition| match definition {
7198 GoToDefinitionLink::Text(link) => {
7199 link.origin.as_ref().map(|origin| {
7200 let buffer = origin.buffer.read(cx);
7201 format!(
7202 "Definitions for {}",
7203 buffer
7204 .text_for_range(origin.range.clone())
7205 .collect::<String>()
7206 )
7207 })
7208 }
7209 GoToDefinitionLink::InlayHint(_, _) => None,
7210 })
7211 .unwrap_or("Definitions".to_string());
7212 let location_tasks = definitions
7213 .into_iter()
7214 .map(|definition| match definition {
7215 GoToDefinitionLink::Text(link) => {
7216 Task::Ready(Some(Ok(Some(link.target))))
7217 }
7218 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7219 editor.compute_target_location(lsp_location, server_id, cx)
7220 }
7221 })
7222 .collect::<Vec<_>>();
7223 (title, location_tasks)
7224 })
7225 .context("location tasks preparation")?;
7226
7227 let locations = futures::future::join_all(location_tasks)
7228 .await
7229 .into_iter()
7230 .filter_map(|location| location.transpose())
7231 .collect::<Result<_>>()
7232 .context("location tasks")?;
7233 workspace
7234 .update(&mut cx, |workspace, cx| {
7235 Self::open_locations_in_multibuffer(
7236 workspace, locations, replica_id, title, split, cx,
7237 )
7238 })
7239 .ok();
7240
7241 anyhow::Ok(())
7242 })
7243 .detach_and_log_err(cx);
7244 }
7245 }
7246
7247 fn compute_target_location(
7248 &self,
7249 lsp_location: lsp::Location,
7250 server_id: LanguageServerId,
7251 cx: &mut ViewContext<Editor>,
7252 ) -> Task<anyhow::Result<Option<Location>>> {
7253 let Some(project) = self.project.clone() else {
7254 return Task::Ready(Some(Ok(None)));
7255 };
7256
7257 cx.spawn(move |editor, mut cx| async move {
7258 let location_task = editor.update(&mut cx, |editor, cx| {
7259 project.update(cx, |project, cx| {
7260 let language_server_name =
7261 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7262 project
7263 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7264 .map(|(_, lsp_adapter)| {
7265 LanguageServerName(Arc::from(lsp_adapter.name()))
7266 })
7267 });
7268 language_server_name.map(|language_server_name| {
7269 project.open_local_buffer_via_lsp(
7270 lsp_location.uri.clone(),
7271 server_id,
7272 language_server_name,
7273 cx,
7274 )
7275 })
7276 })
7277 })?;
7278 let location = match location_task {
7279 Some(task) => Some({
7280 let target_buffer_handle = task.await.context("open local buffer")?;
7281 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7282 let target_start = target_buffer
7283 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7284 let target_end = target_buffer
7285 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7286 target_buffer.anchor_after(target_start)
7287 ..target_buffer.anchor_before(target_end)
7288 })?;
7289 Location {
7290 buffer: target_buffer_handle,
7291 range,
7292 }
7293 }),
7294 None => None,
7295 };
7296 Ok(location)
7297 })
7298 }
7299
7300 pub fn find_all_references(
7301 &mut self,
7302 _: &FindAllReferences,
7303 cx: &mut ViewContext<Self>,
7304 ) -> Option<Task<Result<()>>> {
7305 let buffer = self.buffer.read(cx);
7306 let head = self.selections.newest::<usize>(cx).head();
7307 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7308 let replica_id = self.replica_id(cx);
7309
7310 let workspace = self.workspace()?;
7311 let project = workspace.read(cx).project().clone();
7312 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7313 Some(cx.spawn(|_, mut cx| async move {
7314 let locations = references.await?;
7315 if locations.is_empty() {
7316 return Ok(());
7317 }
7318
7319 workspace.update(&mut cx, |workspace, cx| {
7320 let title = locations
7321 .first()
7322 .as_ref()
7323 .map(|location| {
7324 let buffer = location.buffer.read(cx);
7325 format!(
7326 "References to `{}`",
7327 buffer
7328 .text_for_range(location.range.clone())
7329 .collect::<String>()
7330 )
7331 })
7332 .unwrap();
7333 Self::open_locations_in_multibuffer(
7334 workspace, locations, replica_id, title, false, cx,
7335 );
7336 })?;
7337
7338 Ok(())
7339 }))
7340 }
7341
7342 /// Opens a multibuffer with the given project locations in it
7343 pub fn open_locations_in_multibuffer(
7344 workspace: &mut Workspace,
7345 mut locations: Vec<Location>,
7346 replica_id: ReplicaId,
7347 title: String,
7348 split: bool,
7349 cx: &mut ViewContext<Workspace>,
7350 ) {
7351 // If there are multiple definitions, open them in a multibuffer
7352 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7353 let mut locations = locations.into_iter().peekable();
7354 let mut ranges_to_highlight = Vec::new();
7355 let capability = workspace.project().read(cx).capability();
7356
7357 let excerpt_buffer = cx.new_model(|cx| {
7358 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7359 while let Some(location) = locations.next() {
7360 let buffer = location.buffer.read(cx);
7361 let mut ranges_for_buffer = Vec::new();
7362 let range = location.range.to_offset(buffer);
7363 ranges_for_buffer.push(range.clone());
7364
7365 while let Some(next_location) = locations.peek() {
7366 if next_location.buffer == location.buffer {
7367 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7368 locations.next();
7369 } else {
7370 break;
7371 }
7372 }
7373
7374 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7375 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7376 location.buffer.clone(),
7377 ranges_for_buffer,
7378 1,
7379 cx,
7380 ))
7381 }
7382
7383 multibuffer.with_title(title)
7384 });
7385
7386 let editor = cx.new_view(|cx| {
7387 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7388 });
7389 editor.update(cx, |editor, cx| {
7390 editor.highlight_background::<Self>(
7391 ranges_to_highlight,
7392 |theme| theme.editor_highlighted_line_background,
7393 cx,
7394 );
7395 });
7396 if split {
7397 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7398 } else {
7399 workspace.add_item(Box::new(editor), cx);
7400 }
7401 }
7402
7403 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7404 use language::ToOffset as _;
7405
7406 let project = self.project.clone()?;
7407 let selection = self.selections.newest_anchor().clone();
7408 let (cursor_buffer, cursor_buffer_position) = self
7409 .buffer
7410 .read(cx)
7411 .text_anchor_for_position(selection.head(), cx)?;
7412 let (tail_buffer, _) = self
7413 .buffer
7414 .read(cx)
7415 .text_anchor_for_position(selection.tail(), cx)?;
7416 if tail_buffer != cursor_buffer {
7417 return None;
7418 }
7419
7420 let snapshot = cursor_buffer.read(cx).snapshot();
7421 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7422 let prepare_rename = project.update(cx, |project, cx| {
7423 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7424 });
7425
7426 Some(cx.spawn(|this, mut cx| async move {
7427 let rename_range = if let Some(range) = prepare_rename.await? {
7428 Some(range)
7429 } else {
7430 this.update(&mut cx, |this, cx| {
7431 let buffer = this.buffer.read(cx).snapshot(cx);
7432 let mut buffer_highlights = this
7433 .document_highlights_for_position(selection.head(), &buffer)
7434 .filter(|highlight| {
7435 highlight.start.excerpt_id == selection.head().excerpt_id
7436 && highlight.end.excerpt_id == selection.head().excerpt_id
7437 });
7438 buffer_highlights
7439 .next()
7440 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7441 })?
7442 };
7443 if let Some(rename_range) = rename_range {
7444 let rename_buffer_range = rename_range.to_offset(&snapshot);
7445 let cursor_offset_in_rename_range =
7446 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7447
7448 this.update(&mut cx, |this, cx| {
7449 this.take_rename(false, cx);
7450 let buffer = this.buffer.read(cx).read(cx);
7451 let cursor_offset = selection.head().to_offset(&buffer);
7452 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7453 let rename_end = rename_start + rename_buffer_range.len();
7454 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7455 let mut old_highlight_id = None;
7456 let old_name: Arc<str> = buffer
7457 .chunks(rename_start..rename_end, true)
7458 .map(|chunk| {
7459 if old_highlight_id.is_none() {
7460 old_highlight_id = chunk.syntax_highlight_id;
7461 }
7462 chunk.text
7463 })
7464 .collect::<String>()
7465 .into();
7466
7467 drop(buffer);
7468
7469 // Position the selection in the rename editor so that it matches the current selection.
7470 this.show_local_selections = false;
7471 let rename_editor = cx.new_view(|cx| {
7472 let mut editor = Editor::single_line(cx);
7473 editor.buffer.update(cx, |buffer, cx| {
7474 buffer.edit([(0..0, old_name.clone())], None, cx)
7475 });
7476 editor.select_all(&SelectAll, cx);
7477 editor
7478 });
7479
7480 let ranges = this
7481 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7482 .into_iter()
7483 .flat_map(|(_, ranges)| ranges.into_iter())
7484 .chain(
7485 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7486 .into_iter()
7487 .flat_map(|(_, ranges)| ranges.into_iter()),
7488 )
7489 .collect();
7490
7491 this.highlight_text::<Rename>(
7492 ranges,
7493 HighlightStyle {
7494 fade_out: Some(0.6),
7495 ..Default::default()
7496 },
7497 cx,
7498 );
7499 let rename_focus_handle = rename_editor.focus_handle(cx);
7500 cx.focus(&rename_focus_handle);
7501 let block_id = this.insert_blocks(
7502 [BlockProperties {
7503 style: BlockStyle::Flex,
7504 position: range.start.clone(),
7505 height: 1,
7506 render: Arc::new({
7507 let rename_editor = rename_editor.clone();
7508 move |cx: &mut BlockContext| {
7509 let mut text_style = cx.editor_style.text.clone();
7510 if let Some(highlight_style) = old_highlight_id
7511 .and_then(|h| h.style(&cx.editor_style.syntax))
7512 {
7513 text_style = text_style.highlight(highlight_style);
7514 }
7515 div()
7516 .pl(cx.anchor_x)
7517 .child(EditorElement::new(
7518 &rename_editor,
7519 EditorStyle {
7520 background: cx.theme().system().transparent,
7521 local_player: cx.editor_style.local_player,
7522 text: text_style,
7523 scrollbar_width: cx.editor_style.scrollbar_width,
7524 syntax: cx.editor_style.syntax.clone(),
7525 status: cx.editor_style.status.clone(),
7526 inlays_style: HighlightStyle {
7527 color: Some(cx.theme().status().hint),
7528 font_weight: Some(FontWeight::BOLD),
7529 ..HighlightStyle::default()
7530 },
7531 suggestions_style: HighlightStyle {
7532 color: Some(cx.theme().status().predictive),
7533 ..HighlightStyle::default()
7534 },
7535 },
7536 ))
7537 .into_any_element()
7538 }
7539 }),
7540 disposition: BlockDisposition::Below,
7541 }],
7542 Some(Autoscroll::fit()),
7543 cx,
7544 )[0];
7545 this.pending_rename = Some(RenameState {
7546 range,
7547 old_name,
7548 editor: rename_editor,
7549 block_id,
7550 });
7551 })?;
7552 }
7553
7554 Ok(())
7555 }))
7556 }
7557
7558 pub fn confirm_rename(
7559 &mut self,
7560 _: &ConfirmRename,
7561 cx: &mut ViewContext<Self>,
7562 ) -> Option<Task<Result<()>>> {
7563 let rename = self.take_rename(false, cx)?;
7564 let workspace = self.workspace()?;
7565 let (start_buffer, start) = self
7566 .buffer
7567 .read(cx)
7568 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7569 let (end_buffer, end) = self
7570 .buffer
7571 .read(cx)
7572 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7573 if start_buffer != end_buffer {
7574 return None;
7575 }
7576
7577 let buffer = start_buffer;
7578 let range = start..end;
7579 let old_name = rename.old_name;
7580 let new_name = rename.editor.read(cx).text(cx);
7581
7582 let rename = workspace
7583 .read(cx)
7584 .project()
7585 .clone()
7586 .update(cx, |project, cx| {
7587 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7588 });
7589 let workspace = workspace.downgrade();
7590
7591 Some(cx.spawn(|editor, mut cx| async move {
7592 let project_transaction = rename.await?;
7593 Self::open_project_transaction(
7594 &editor,
7595 workspace,
7596 project_transaction,
7597 format!("Rename: {} → {}", old_name, new_name),
7598 cx.clone(),
7599 )
7600 .await?;
7601
7602 editor.update(&mut cx, |editor, cx| {
7603 editor.refresh_document_highlights(cx);
7604 })?;
7605 Ok(())
7606 }))
7607 }
7608
7609 fn take_rename(
7610 &mut self,
7611 moving_cursor: bool,
7612 cx: &mut ViewContext<Self>,
7613 ) -> Option<RenameState> {
7614 let rename = self.pending_rename.take()?;
7615 if rename.editor.focus_handle(cx).is_focused(cx) {
7616 cx.focus(&self.focus_handle);
7617 }
7618
7619 self.remove_blocks(
7620 [rename.block_id].into_iter().collect(),
7621 Some(Autoscroll::fit()),
7622 cx,
7623 );
7624 self.clear_highlights::<Rename>(cx);
7625 self.show_local_selections = true;
7626
7627 if moving_cursor {
7628 let rename_editor = rename.editor.read(cx);
7629 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7630
7631 // Update the selection to match the position of the selection inside
7632 // the rename editor.
7633 let snapshot = self.buffer.read(cx).read(cx);
7634 let rename_range = rename.range.to_offset(&snapshot);
7635 let cursor_in_editor = snapshot
7636 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7637 .min(rename_range.end);
7638 drop(snapshot);
7639
7640 self.change_selections(None, cx, |s| {
7641 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7642 });
7643 } else {
7644 self.refresh_document_highlights(cx);
7645 }
7646
7647 Some(rename)
7648 }
7649
7650 #[cfg(any(test, feature = "test-support"))]
7651 pub fn pending_rename(&self) -> Option<&RenameState> {
7652 self.pending_rename.as_ref()
7653 }
7654
7655 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7656 let project = match &self.project {
7657 Some(project) => project.clone(),
7658 None => return None,
7659 };
7660
7661 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7662 }
7663
7664 fn perform_format(
7665 &mut self,
7666 project: Model<Project>,
7667 trigger: FormatTrigger,
7668 cx: &mut ViewContext<Self>,
7669 ) -> Task<Result<()>> {
7670 let buffer = self.buffer().clone();
7671 let buffers = buffer.read(cx).all_buffers();
7672
7673 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7674 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7675
7676 cx.spawn(|_, mut cx| async move {
7677 let transaction = futures::select_biased! {
7678 _ = timeout => {
7679 log::warn!("timed out waiting for formatting");
7680 None
7681 }
7682 transaction = format.log_err().fuse() => transaction,
7683 };
7684
7685 buffer
7686 .update(&mut cx, |buffer, cx| {
7687 if let Some(transaction) = transaction {
7688 if !buffer.is_singleton() {
7689 buffer.push_transaction(&transaction.0, cx);
7690 }
7691 }
7692
7693 cx.notify();
7694 })
7695 .ok();
7696
7697 Ok(())
7698 })
7699 }
7700
7701 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7702 if let Some(project) = self.project.clone() {
7703 self.buffer.update(cx, |multi_buffer, cx| {
7704 project.update(cx, |project, cx| {
7705 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7706 });
7707 })
7708 }
7709 }
7710
7711 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7712 cx.show_character_palette();
7713 }
7714
7715 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7716 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7717 let buffer = self.buffer.read(cx).snapshot(cx);
7718 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7719 let is_valid = buffer
7720 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7721 .any(|entry| {
7722 entry.diagnostic.is_primary
7723 && !entry.range.is_empty()
7724 && entry.range.start == primary_range_start
7725 && entry.diagnostic.message == active_diagnostics.primary_message
7726 });
7727
7728 if is_valid != active_diagnostics.is_valid {
7729 active_diagnostics.is_valid = is_valid;
7730 let mut new_styles = HashMap::default();
7731 for (block_id, diagnostic) in &active_diagnostics.blocks {
7732 new_styles.insert(
7733 *block_id,
7734 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7735 );
7736 }
7737 self.display_map
7738 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7739 }
7740 }
7741 }
7742
7743 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7744 self.dismiss_diagnostics(cx);
7745 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7746 let buffer = self.buffer.read(cx).snapshot(cx);
7747
7748 let mut primary_range = None;
7749 let mut primary_message = None;
7750 let mut group_end = Point::zero();
7751 let diagnostic_group = buffer
7752 .diagnostic_group::<Point>(group_id)
7753 .map(|entry| {
7754 if entry.range.end > group_end {
7755 group_end = entry.range.end;
7756 }
7757 if entry.diagnostic.is_primary {
7758 primary_range = Some(entry.range.clone());
7759 primary_message = Some(entry.diagnostic.message.clone());
7760 }
7761 entry
7762 })
7763 .collect::<Vec<_>>();
7764 let primary_range = primary_range?;
7765 let primary_message = primary_message?;
7766 let primary_range =
7767 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7768
7769 let blocks = display_map
7770 .insert_blocks(
7771 diagnostic_group.iter().map(|entry| {
7772 let diagnostic = entry.diagnostic.clone();
7773 let message_height = diagnostic.message.lines().count() as u8;
7774 BlockProperties {
7775 style: BlockStyle::Fixed,
7776 position: buffer.anchor_after(entry.range.start),
7777 height: message_height,
7778 render: diagnostic_block_renderer(diagnostic, true),
7779 disposition: BlockDisposition::Below,
7780 }
7781 }),
7782 cx,
7783 )
7784 .into_iter()
7785 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7786 .collect();
7787
7788 Some(ActiveDiagnosticGroup {
7789 primary_range,
7790 primary_message,
7791 blocks,
7792 is_valid: true,
7793 })
7794 });
7795 self.active_diagnostics.is_some()
7796 }
7797
7798 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7799 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7800 self.display_map.update(cx, |display_map, cx| {
7801 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7802 });
7803 cx.notify();
7804 }
7805 }
7806
7807 pub fn set_selections_from_remote(
7808 &mut self,
7809 selections: Vec<Selection<Anchor>>,
7810 pending_selection: Option<Selection<Anchor>>,
7811 cx: &mut ViewContext<Self>,
7812 ) {
7813 let old_cursor_position = self.selections.newest_anchor().head();
7814 self.selections.change_with(cx, |s| {
7815 s.select_anchors(selections);
7816 if let Some(pending_selection) = pending_selection {
7817 s.set_pending(pending_selection, SelectMode::Character);
7818 } else {
7819 s.clear_pending();
7820 }
7821 });
7822 self.selections_did_change(false, &old_cursor_position, cx);
7823 }
7824
7825 fn push_to_selection_history(&mut self) {
7826 self.selection_history.push(SelectionHistoryEntry {
7827 selections: self.selections.disjoint_anchors(),
7828 select_next_state: self.select_next_state.clone(),
7829 select_prev_state: self.select_prev_state.clone(),
7830 add_selections_state: self.add_selections_state.clone(),
7831 });
7832 }
7833
7834 pub fn transact(
7835 &mut self,
7836 cx: &mut ViewContext<Self>,
7837 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7838 ) -> Option<TransactionId> {
7839 self.start_transaction_at(Instant::now(), cx);
7840 update(self, cx);
7841 self.end_transaction_at(Instant::now(), cx)
7842 }
7843
7844 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7845 self.end_selection(cx);
7846 if let Some(tx_id) = self
7847 .buffer
7848 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7849 {
7850 self.selection_history
7851 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7852 }
7853 }
7854
7855 fn end_transaction_at(
7856 &mut self,
7857 now: Instant,
7858 cx: &mut ViewContext<Self>,
7859 ) -> Option<TransactionId> {
7860 if let Some(tx_id) = self
7861 .buffer
7862 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7863 {
7864 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7865 *end_selections = Some(self.selections.disjoint_anchors());
7866 } else {
7867 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7868 }
7869
7870 cx.emit(EditorEvent::Edited);
7871 Some(tx_id)
7872 } else {
7873 None
7874 }
7875 }
7876
7877 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7878 let mut fold_ranges = Vec::new();
7879
7880 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7881
7882 let selections = self.selections.all_adjusted(cx);
7883 for selection in selections {
7884 let range = selection.range().sorted();
7885 let buffer_start_row = range.start.row;
7886
7887 for row in (0..=range.end.row).rev() {
7888 let fold_range = display_map.foldable_range(row);
7889
7890 if let Some(fold_range) = fold_range {
7891 if fold_range.end.row >= buffer_start_row {
7892 fold_ranges.push(fold_range);
7893 if row <= range.start.row {
7894 break;
7895 }
7896 }
7897 }
7898 }
7899 }
7900
7901 self.fold_ranges(fold_ranges, true, cx);
7902 }
7903
7904 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7905 let buffer_row = fold_at.buffer_row;
7906 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7907
7908 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7909 let autoscroll = self
7910 .selections
7911 .all::<Point>(cx)
7912 .iter()
7913 .any(|selection| fold_range.overlaps(&selection.range()));
7914
7915 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7916 }
7917 }
7918
7919 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7920 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7921 let buffer = &display_map.buffer_snapshot;
7922 let selections = self.selections.all::<Point>(cx);
7923 let ranges = selections
7924 .iter()
7925 .map(|s| {
7926 let range = s.display_range(&display_map).sorted();
7927 let mut start = range.start.to_point(&display_map);
7928 let mut end = range.end.to_point(&display_map);
7929 start.column = 0;
7930 end.column = buffer.line_len(end.row);
7931 start..end
7932 })
7933 .collect::<Vec<_>>();
7934
7935 self.unfold_ranges(ranges, true, true, cx);
7936 }
7937
7938 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7939 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7940
7941 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7942 ..Point::new(
7943 unfold_at.buffer_row,
7944 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7945 );
7946
7947 let autoscroll = self
7948 .selections
7949 .all::<Point>(cx)
7950 .iter()
7951 .any(|selection| selection.range().overlaps(&intersection_range));
7952
7953 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
7954 }
7955
7956 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
7957 let selections = self.selections.all::<Point>(cx);
7958 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7959 let line_mode = self.selections.line_mode;
7960 let ranges = selections.into_iter().map(|s| {
7961 if line_mode {
7962 let start = Point::new(s.start.row, 0);
7963 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
7964 start..end
7965 } else {
7966 s.start..s.end
7967 }
7968 });
7969 self.fold_ranges(ranges, true, cx);
7970 }
7971
7972 pub fn fold_ranges<T: ToOffset + Clone>(
7973 &mut self,
7974 ranges: impl IntoIterator<Item = Range<T>>,
7975 auto_scroll: bool,
7976 cx: &mut ViewContext<Self>,
7977 ) {
7978 let mut ranges = ranges.into_iter().peekable();
7979 if ranges.peek().is_some() {
7980 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
7981
7982 if auto_scroll {
7983 self.request_autoscroll(Autoscroll::fit(), cx);
7984 }
7985
7986 cx.notify();
7987 }
7988 }
7989
7990 pub fn unfold_ranges<T: ToOffset + Clone>(
7991 &mut self,
7992 ranges: impl IntoIterator<Item = Range<T>>,
7993 inclusive: bool,
7994 auto_scroll: bool,
7995 cx: &mut ViewContext<Self>,
7996 ) {
7997 let mut ranges = ranges.into_iter().peekable();
7998 if ranges.peek().is_some() {
7999 self.display_map
8000 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8001 if auto_scroll {
8002 self.request_autoscroll(Autoscroll::fit(), cx);
8003 }
8004
8005 cx.notify();
8006 }
8007 }
8008
8009 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8010 if hovered != self.gutter_hovered {
8011 self.gutter_hovered = hovered;
8012 cx.notify();
8013 }
8014 }
8015
8016 pub fn insert_blocks(
8017 &mut self,
8018 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8019 autoscroll: Option<Autoscroll>,
8020 cx: &mut ViewContext<Self>,
8021 ) -> Vec<BlockId> {
8022 let blocks = self
8023 .display_map
8024 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8025 if let Some(autoscroll) = autoscroll {
8026 self.request_autoscroll(autoscroll, cx);
8027 }
8028 blocks
8029 }
8030
8031 pub fn replace_blocks(
8032 &mut self,
8033 blocks: HashMap<BlockId, RenderBlock>,
8034 autoscroll: Option<Autoscroll>,
8035 cx: &mut ViewContext<Self>,
8036 ) {
8037 self.display_map
8038 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8039 if let Some(autoscroll) = autoscroll {
8040 self.request_autoscroll(autoscroll, cx);
8041 }
8042 }
8043
8044 pub fn remove_blocks(
8045 &mut self,
8046 block_ids: HashSet<BlockId>,
8047 autoscroll: Option<Autoscroll>,
8048 cx: &mut ViewContext<Self>,
8049 ) {
8050 self.display_map.update(cx, |display_map, cx| {
8051 display_map.remove_blocks(block_ids, cx)
8052 });
8053 if let Some(autoscroll) = autoscroll {
8054 self.request_autoscroll(autoscroll, cx);
8055 }
8056 }
8057
8058 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8059 self.display_map
8060 .update(cx, |map, cx| map.snapshot(cx))
8061 .longest_row()
8062 }
8063
8064 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8065 self.display_map
8066 .update(cx, |map, cx| map.snapshot(cx))
8067 .max_point()
8068 }
8069
8070 pub fn text(&self, cx: &AppContext) -> String {
8071 self.buffer.read(cx).read(cx).text()
8072 }
8073
8074 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8075 let text = self.text(cx);
8076 let text = text.trim();
8077
8078 if text.is_empty() {
8079 return None;
8080 }
8081
8082 Some(text.to_string())
8083 }
8084
8085 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8086 self.transact(cx, |this, cx| {
8087 this.buffer
8088 .read(cx)
8089 .as_singleton()
8090 .expect("you can only call set_text on editors for singleton buffers")
8091 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8092 });
8093 }
8094
8095 pub fn display_text(&self, cx: &mut AppContext) -> String {
8096 self.display_map
8097 .update(cx, |map, cx| map.snapshot(cx))
8098 .text()
8099 }
8100
8101 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8102 let mut wrap_guides = smallvec::smallvec![];
8103
8104 if self.show_wrap_guides == Some(false) {
8105 return wrap_guides;
8106 }
8107
8108 let settings = self.buffer.read(cx).settings_at(0, cx);
8109 if settings.show_wrap_guides {
8110 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8111 wrap_guides.push((soft_wrap as usize, true));
8112 }
8113 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8114 }
8115
8116 wrap_guides
8117 }
8118
8119 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8120 let settings = self.buffer.read(cx).settings_at(0, cx);
8121 let mode = self
8122 .soft_wrap_mode_override
8123 .unwrap_or_else(|| settings.soft_wrap);
8124 match mode {
8125 language_settings::SoftWrap::None => SoftWrap::None,
8126 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8127 language_settings::SoftWrap::PreferredLineLength => {
8128 SoftWrap::Column(settings.preferred_line_length)
8129 }
8130 }
8131 }
8132
8133 pub fn set_soft_wrap_mode(
8134 &mut self,
8135 mode: language_settings::SoftWrap,
8136 cx: &mut ViewContext<Self>,
8137 ) {
8138 self.soft_wrap_mode_override = Some(mode);
8139 cx.notify();
8140 }
8141
8142 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8143 let rem_size = cx.rem_size();
8144 self.display_map.update(cx, |map, cx| {
8145 map.set_font(
8146 style.text.font(),
8147 style.text.font_size.to_pixels(rem_size),
8148 cx,
8149 )
8150 });
8151 self.style = Some(style);
8152 }
8153
8154 #[cfg(any(test, feature = "test-support"))]
8155 pub fn style(&self) -> Option<&EditorStyle> {
8156 self.style.as_ref()
8157 }
8158
8159 // Called by the element. This method is not designed to be called outside of the editor
8160 // element's layout code because it does not notify when rewrapping is computed synchronously.
8161 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8162 self.display_map
8163 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8164 }
8165
8166 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8167 if self.soft_wrap_mode_override.is_some() {
8168 self.soft_wrap_mode_override.take();
8169 } else {
8170 let soft_wrap = match self.soft_wrap_mode(cx) {
8171 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8172 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8173 };
8174 self.soft_wrap_mode_override = Some(soft_wrap);
8175 }
8176 cx.notify();
8177 }
8178
8179 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8180 self.show_gutter = show_gutter;
8181 cx.notify();
8182 }
8183
8184 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8185 self.show_wrap_guides = Some(show_gutter);
8186 cx.notify();
8187 }
8188
8189 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8190 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8191 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8192 cx.reveal_path(&file.abs_path(cx));
8193 }
8194 }
8195 }
8196
8197 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8198 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8199 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8200 if let Some(path) = file.abs_path(cx).to_str() {
8201 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8202 }
8203 }
8204 }
8205 }
8206
8207 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8208 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8209 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8210 if let Some(path) = file.path().to_str() {
8211 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8212 }
8213 }
8214 }
8215 }
8216
8217 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8218 self.highlighted_rows = rows;
8219 }
8220
8221 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8222 self.highlighted_rows.clone()
8223 }
8224
8225 pub fn highlight_background<T: 'static>(
8226 &mut self,
8227 ranges: Vec<Range<Anchor>>,
8228 color_fetcher: fn(&ThemeColors) -> Hsla,
8229 cx: &mut ViewContext<Self>,
8230 ) {
8231 self.background_highlights
8232 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8233 cx.notify();
8234 }
8235
8236 pub(crate) fn highlight_inlay_background<T: 'static>(
8237 &mut self,
8238 ranges: Vec<InlayHighlight>,
8239 color_fetcher: fn(&ThemeColors) -> Hsla,
8240 cx: &mut ViewContext<Self>,
8241 ) {
8242 // TODO: no actual highlights happen for inlays currently, find a way to do that
8243 self.inlay_background_highlights
8244 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8245 cx.notify();
8246 }
8247
8248 pub fn clear_background_highlights<T: 'static>(
8249 &mut self,
8250 cx: &mut ViewContext<Self>,
8251 ) -> Option<BackgroundHighlight> {
8252 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8253 let inlay_highlights = self
8254 .inlay_background_highlights
8255 .remove(&Some(TypeId::of::<T>()));
8256 if text_highlights.is_some() || inlay_highlights.is_some() {
8257 cx.notify();
8258 }
8259 text_highlights
8260 }
8261
8262 #[cfg(feature = "test-support")]
8263 pub fn all_text_background_highlights(
8264 &mut self,
8265 cx: &mut ViewContext<Self>,
8266 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8267 let snapshot = self.snapshot(cx);
8268 let buffer = &snapshot.buffer_snapshot;
8269 let start = buffer.anchor_before(0);
8270 let end = buffer.anchor_after(buffer.len());
8271 let theme = cx.theme().colors();
8272 self.background_highlights_in_range(start..end, &snapshot, theme)
8273 }
8274
8275 fn document_highlights_for_position<'a>(
8276 &'a self,
8277 position: Anchor,
8278 buffer: &'a MultiBufferSnapshot,
8279 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8280 let read_highlights = self
8281 .background_highlights
8282 .get(&TypeId::of::<DocumentHighlightRead>())
8283 .map(|h| &h.1);
8284 let write_highlights = self
8285 .background_highlights
8286 .get(&TypeId::of::<DocumentHighlightWrite>())
8287 .map(|h| &h.1);
8288 let left_position = position.bias_left(buffer);
8289 let right_position = position.bias_right(buffer);
8290 read_highlights
8291 .into_iter()
8292 .chain(write_highlights)
8293 .flat_map(move |ranges| {
8294 let start_ix = match ranges.binary_search_by(|probe| {
8295 let cmp = probe.end.cmp(&left_position, buffer);
8296 if cmp.is_ge() {
8297 Ordering::Greater
8298 } else {
8299 Ordering::Less
8300 }
8301 }) {
8302 Ok(i) | Err(i) => i,
8303 };
8304
8305 let right_position = right_position.clone();
8306 ranges[start_ix..]
8307 .iter()
8308 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8309 })
8310 }
8311
8312 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8313 self.background_highlights
8314 .get(&TypeId::of::<T>())
8315 .map_or(false, |(_, highlights)| !highlights.is_empty())
8316 }
8317
8318 pub fn background_highlights_in_range(
8319 &self,
8320 search_range: Range<Anchor>,
8321 display_snapshot: &DisplaySnapshot,
8322 theme: &ThemeColors,
8323 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8324 let mut results = Vec::new();
8325 for (color_fetcher, ranges) in self.background_highlights.values() {
8326 let color = color_fetcher(theme);
8327 let start_ix = match ranges.binary_search_by(|probe| {
8328 let cmp = probe
8329 .end
8330 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8331 if cmp.is_gt() {
8332 Ordering::Greater
8333 } else {
8334 Ordering::Less
8335 }
8336 }) {
8337 Ok(i) | Err(i) => i,
8338 };
8339 for range in &ranges[start_ix..] {
8340 if range
8341 .start
8342 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8343 .is_ge()
8344 {
8345 break;
8346 }
8347
8348 let start = range.start.to_display_point(&display_snapshot);
8349 let end = range.end.to_display_point(&display_snapshot);
8350 results.push((start..end, color))
8351 }
8352 }
8353 results
8354 }
8355
8356 pub fn background_highlight_row_ranges<T: 'static>(
8357 &self,
8358 search_range: Range<Anchor>,
8359 display_snapshot: &DisplaySnapshot,
8360 count: usize,
8361 ) -> Vec<RangeInclusive<DisplayPoint>> {
8362 let mut results = Vec::new();
8363 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8364 return vec![];
8365 };
8366
8367 let start_ix = match ranges.binary_search_by(|probe| {
8368 let cmp = probe
8369 .end
8370 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8371 if cmp.is_gt() {
8372 Ordering::Greater
8373 } else {
8374 Ordering::Less
8375 }
8376 }) {
8377 Ok(i) | Err(i) => i,
8378 };
8379 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8380 if let (Some(start_display), Some(end_display)) = (start, end) {
8381 results.push(
8382 start_display.to_display_point(display_snapshot)
8383 ..=end_display.to_display_point(display_snapshot),
8384 );
8385 }
8386 };
8387 let mut start_row: Option<Point> = None;
8388 let mut end_row: Option<Point> = None;
8389 if ranges.len() > count {
8390 return Vec::new();
8391 }
8392 for range in &ranges[start_ix..] {
8393 if range
8394 .start
8395 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8396 .is_ge()
8397 {
8398 break;
8399 }
8400 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8401 if let Some(current_row) = &end_row {
8402 if end.row == current_row.row {
8403 continue;
8404 }
8405 }
8406 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8407 if start_row.is_none() {
8408 assert_eq!(end_row, None);
8409 start_row = Some(start);
8410 end_row = Some(end);
8411 continue;
8412 }
8413 if let Some(current_end) = end_row.as_mut() {
8414 if start.row > current_end.row + 1 {
8415 push_region(start_row, end_row);
8416 start_row = Some(start);
8417 end_row = Some(end);
8418 } else {
8419 // Merge two hunks.
8420 *current_end = end;
8421 }
8422 } else {
8423 unreachable!();
8424 }
8425 }
8426 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8427 push_region(start_row, end_row);
8428 results
8429 }
8430
8431 pub fn highlight_text<T: 'static>(
8432 &mut self,
8433 ranges: Vec<Range<Anchor>>,
8434 style: HighlightStyle,
8435 cx: &mut ViewContext<Self>,
8436 ) {
8437 self.display_map.update(cx, |map, _| {
8438 map.highlight_text(TypeId::of::<T>(), ranges, style)
8439 });
8440 cx.notify();
8441 }
8442
8443 pub(crate) fn highlight_inlays<T: 'static>(
8444 &mut self,
8445 highlights: Vec<InlayHighlight>,
8446 style: HighlightStyle,
8447 cx: &mut ViewContext<Self>,
8448 ) {
8449 self.display_map.update(cx, |map, _| {
8450 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8451 });
8452 cx.notify();
8453 }
8454
8455 pub fn text_highlights<'a, T: 'static>(
8456 &'a self,
8457 cx: &'a AppContext,
8458 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8459 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8460 }
8461
8462 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8463 let cleared = self
8464 .display_map
8465 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8466 if cleared {
8467 cx.notify();
8468 }
8469 }
8470
8471 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8472 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8473 && self.focus_handle.is_focused(cx)
8474 }
8475
8476 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8477 cx.notify();
8478 }
8479
8480 fn on_buffer_event(
8481 &mut self,
8482 multibuffer: Model<MultiBuffer>,
8483 event: &multi_buffer::Event,
8484 cx: &mut ViewContext<Self>,
8485 ) {
8486 match event {
8487 multi_buffer::Event::Edited {
8488 singleton_buffer_edited,
8489 } => {
8490 self.refresh_active_diagnostics(cx);
8491 self.refresh_code_actions(cx);
8492 if self.has_active_copilot_suggestion(cx) {
8493 self.update_visible_copilot_suggestion(cx);
8494 }
8495 cx.emit(EditorEvent::BufferEdited);
8496 cx.emit(SearchEvent::MatchesInvalidated);
8497
8498 if *singleton_buffer_edited {
8499 if let Some(project) = &self.project {
8500 let project = project.read(cx);
8501 let languages_affected = multibuffer
8502 .read(cx)
8503 .all_buffers()
8504 .into_iter()
8505 .filter_map(|buffer| {
8506 let buffer = buffer.read(cx);
8507 let language = buffer.language()?;
8508 if project.is_local()
8509 && project.language_servers_for_buffer(buffer, cx).count() == 0
8510 {
8511 None
8512 } else {
8513 Some(language)
8514 }
8515 })
8516 .cloned()
8517 .collect::<HashSet<_>>();
8518 if !languages_affected.is_empty() {
8519 self.refresh_inlay_hints(
8520 InlayHintRefreshReason::BufferEdited(languages_affected),
8521 cx,
8522 );
8523 }
8524 }
8525 }
8526
8527 let Some(project) = &self.project else { return };
8528 let telemetry = project.read(cx).client().telemetry().clone();
8529 telemetry.log_edit_event("editor");
8530 }
8531 multi_buffer::Event::ExcerptsAdded {
8532 buffer,
8533 predecessor,
8534 excerpts,
8535 } => {
8536 cx.emit(EditorEvent::ExcerptsAdded {
8537 buffer: buffer.clone(),
8538 predecessor: *predecessor,
8539 excerpts: excerpts.clone(),
8540 });
8541 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8542 }
8543 multi_buffer::Event::ExcerptsRemoved { ids } => {
8544 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8545 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8546 }
8547 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8548 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8549 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8550 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8551 cx.emit(EditorEvent::TitleChanged)
8552 }
8553 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8554 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8555 multi_buffer::Event::DiagnosticsUpdated => {
8556 self.refresh_active_diagnostics(cx);
8557 }
8558 _ => {}
8559 };
8560 }
8561
8562 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8563 cx.notify();
8564 }
8565
8566 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8567 self.refresh_copilot_suggestions(true, cx);
8568 self.refresh_inlay_hints(
8569 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8570 self.selections.newest_anchor().head(),
8571 &self.buffer.read(cx).snapshot(cx),
8572 cx,
8573 )),
8574 cx,
8575 );
8576 cx.notify();
8577 }
8578
8579 pub fn set_searchable(&mut self, searchable: bool) {
8580 self.searchable = searchable;
8581 }
8582
8583 pub fn searchable(&self) -> bool {
8584 self.searchable
8585 }
8586
8587 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8588 let buffer = self.buffer.read(cx);
8589 if buffer.is_singleton() {
8590 cx.propagate();
8591 return;
8592 }
8593
8594 let Some(workspace) = self.workspace() else {
8595 cx.propagate();
8596 return;
8597 };
8598
8599 let mut new_selections_by_buffer = HashMap::default();
8600 for selection in self.selections.all::<usize>(cx) {
8601 for (buffer, mut range, _) in
8602 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8603 {
8604 if selection.reversed {
8605 mem::swap(&mut range.start, &mut range.end);
8606 }
8607 new_selections_by_buffer
8608 .entry(buffer)
8609 .or_insert(Vec::new())
8610 .push(range)
8611 }
8612 }
8613
8614 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8615
8616 // We defer the pane interaction because we ourselves are a workspace item
8617 // and activating a new item causes the pane to call a method on us reentrantly,
8618 // which panics if we're on the stack.
8619 cx.window_context().defer(move |cx| {
8620 workspace.update(cx, |workspace, cx| {
8621 let pane = workspace.active_pane().clone();
8622 pane.update(cx, |pane, _| pane.disable_history());
8623
8624 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8625 let editor = workspace.open_project_item::<Self>(buffer, cx);
8626 editor.update(cx, |editor, cx| {
8627 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8628 s.select_ranges(ranges);
8629 });
8630 });
8631 }
8632
8633 pane.update(cx, |pane, _| pane.enable_history());
8634 })
8635 });
8636 }
8637
8638 fn jump(
8639 &mut self,
8640 path: ProjectPath,
8641 position: Point,
8642 anchor: language::Anchor,
8643 cx: &mut ViewContext<Self>,
8644 ) {
8645 let workspace = self.workspace();
8646 cx.spawn(|_, mut cx| async move {
8647 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8648 let editor = workspace.update(&mut cx, |workspace, cx| {
8649 workspace.open_path(path, None, true, cx)
8650 })?;
8651 let editor = editor
8652 .await?
8653 .downcast::<Editor>()
8654 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8655 .downgrade();
8656 editor.update(&mut cx, |editor, cx| {
8657 let buffer = editor
8658 .buffer()
8659 .read(cx)
8660 .as_singleton()
8661 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8662 let buffer = buffer.read(cx);
8663 let cursor = if buffer.can_resolve(&anchor) {
8664 language::ToPoint::to_point(&anchor, buffer)
8665 } else {
8666 buffer.clip_point(position, Bias::Left)
8667 };
8668
8669 let nav_history = editor.nav_history.take();
8670 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8671 s.select_ranges([cursor..cursor]);
8672 });
8673 editor.nav_history = nav_history;
8674
8675 anyhow::Ok(())
8676 })??;
8677
8678 anyhow::Ok(())
8679 })
8680 .detach_and_log_err(cx);
8681 }
8682
8683 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8684 let snapshot = self.buffer.read(cx).read(cx);
8685 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8686 Some(
8687 ranges
8688 .iter()
8689 .map(move |range| {
8690 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8691 })
8692 .collect(),
8693 )
8694 }
8695
8696 fn selection_replacement_ranges(
8697 &self,
8698 range: Range<OffsetUtf16>,
8699 cx: &AppContext,
8700 ) -> Vec<Range<OffsetUtf16>> {
8701 let selections = self.selections.all::<OffsetUtf16>(cx);
8702 let newest_selection = selections
8703 .iter()
8704 .max_by_key(|selection| selection.id)
8705 .unwrap();
8706 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8707 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8708 let snapshot = self.buffer.read(cx).read(cx);
8709 selections
8710 .into_iter()
8711 .map(|mut selection| {
8712 selection.start.0 =
8713 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8714 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8715 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8716 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8717 })
8718 .collect()
8719 }
8720
8721 fn report_copilot_event(
8722 &self,
8723 suggestion_id: Option<String>,
8724 suggestion_accepted: bool,
8725 cx: &AppContext,
8726 ) {
8727 let Some(project) = &self.project else { return };
8728
8729 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8730 let file_extension = self
8731 .buffer
8732 .read(cx)
8733 .as_singleton()
8734 .and_then(|b| b.read(cx).file())
8735 .and_then(|file| Path::new(file.file_name(cx)).extension())
8736 .and_then(|e| e.to_str())
8737 .map(|a| a.to_string());
8738
8739 let telemetry = project.read(cx).client().telemetry().clone();
8740
8741 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8742 }
8743
8744 #[cfg(any(test, feature = "test-support"))]
8745 fn report_editor_event(
8746 &self,
8747 _operation: &'static str,
8748 _file_extension: Option<String>,
8749 _cx: &AppContext,
8750 ) {
8751 }
8752
8753 #[cfg(not(any(test, feature = "test-support")))]
8754 fn report_editor_event(
8755 &self,
8756 operation: &'static str,
8757 file_extension: Option<String>,
8758 cx: &AppContext,
8759 ) {
8760 let Some(project) = &self.project else { return };
8761
8762 // If None, we are in a file without an extension
8763 let file = self
8764 .buffer
8765 .read(cx)
8766 .as_singleton()
8767 .and_then(|b| b.read(cx).file());
8768 let file_extension = file_extension.or(file
8769 .as_ref()
8770 .and_then(|file| Path::new(file.file_name(cx)).extension())
8771 .and_then(|e| e.to_str())
8772 .map(|a| a.to_string()));
8773
8774 let vim_mode = cx
8775 .global::<SettingsStore>()
8776 .raw_user_settings()
8777 .get("vim_mode")
8778 == Some(&serde_json::Value::Bool(true));
8779 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8780 let copilot_enabled_for_language = self
8781 .buffer
8782 .read(cx)
8783 .settings_at(0, cx)
8784 .show_copilot_suggestions;
8785
8786 let telemetry = project.read(cx).client().telemetry().clone();
8787 telemetry.report_editor_event(
8788 file_extension,
8789 vim_mode,
8790 operation,
8791 copilot_enabled,
8792 copilot_enabled_for_language,
8793 )
8794 }
8795
8796 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8797 /// with each line being an array of {text, highlight} objects.
8798 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8799 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8800 return;
8801 };
8802
8803 #[derive(Serialize)]
8804 struct Chunk<'a> {
8805 text: String,
8806 highlight: Option<&'a str>,
8807 }
8808
8809 let snapshot = buffer.read(cx).snapshot();
8810 let range = self
8811 .selected_text_range(cx)
8812 .and_then(|selected_range| {
8813 if selected_range.is_empty() {
8814 None
8815 } else {
8816 Some(selected_range)
8817 }
8818 })
8819 .unwrap_or_else(|| 0..snapshot.len());
8820
8821 let chunks = snapshot.chunks(range, true);
8822 let mut lines = Vec::new();
8823 let mut line: VecDeque<Chunk> = VecDeque::new();
8824
8825 let Some(style) = self.style.as_ref() else {
8826 return;
8827 };
8828
8829 for chunk in chunks {
8830 let highlight = chunk
8831 .syntax_highlight_id
8832 .and_then(|id| id.name(&style.syntax));
8833 let mut chunk_lines = chunk.text.split("\n").peekable();
8834 while let Some(text) = chunk_lines.next() {
8835 let mut merged_with_last_token = false;
8836 if let Some(last_token) = line.back_mut() {
8837 if last_token.highlight == highlight {
8838 last_token.text.push_str(text);
8839 merged_with_last_token = true;
8840 }
8841 }
8842
8843 if !merged_with_last_token {
8844 line.push_back(Chunk {
8845 text: text.into(),
8846 highlight,
8847 });
8848 }
8849
8850 if chunk_lines.peek().is_some() {
8851 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8852 line.pop_front();
8853 }
8854 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8855 line.pop_back();
8856 }
8857
8858 lines.push(mem::take(&mut line));
8859 }
8860 }
8861 }
8862
8863 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8864 return;
8865 };
8866 cx.write_to_clipboard(ClipboardItem::new(lines));
8867 }
8868
8869 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8870 &self.inlay_hint_cache
8871 }
8872
8873 pub fn replay_insert_event(
8874 &mut self,
8875 text: &str,
8876 relative_utf16_range: Option<Range<isize>>,
8877 cx: &mut ViewContext<Self>,
8878 ) {
8879 if !self.input_enabled {
8880 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8881 return;
8882 }
8883 if let Some(relative_utf16_range) = relative_utf16_range {
8884 let selections = self.selections.all::<OffsetUtf16>(cx);
8885 self.change_selections(None, cx, |s| {
8886 let new_ranges = selections.into_iter().map(|range| {
8887 let start = OffsetUtf16(
8888 range
8889 .head()
8890 .0
8891 .saturating_add_signed(relative_utf16_range.start),
8892 );
8893 let end = OffsetUtf16(
8894 range
8895 .head()
8896 .0
8897 .saturating_add_signed(relative_utf16_range.end),
8898 );
8899 start..end
8900 });
8901 s.select_ranges(new_ranges);
8902 });
8903 }
8904
8905 self.handle_input(text, cx);
8906 }
8907
8908 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8909 let Some(project) = self.project.as_ref() else {
8910 return false;
8911 };
8912 let project = project.read(cx);
8913
8914 let mut supports = false;
8915 self.buffer().read(cx).for_each_buffer(|buffer| {
8916 if !supports {
8917 supports = project
8918 .language_servers_for_buffer(buffer.read(cx), cx)
8919 .any(
8920 |(_, server)| match server.capabilities().inlay_hint_provider {
8921 Some(lsp::OneOf::Left(enabled)) => enabled,
8922 Some(lsp::OneOf::Right(_)) => true,
8923 None => false,
8924 },
8925 )
8926 }
8927 });
8928 supports
8929 }
8930
8931 pub fn focus(&self, cx: &mut WindowContext) {
8932 cx.focus(&self.focus_handle)
8933 }
8934
8935 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8936 self.focus_handle.is_focused(cx)
8937 }
8938
8939 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8940 cx.emit(EditorEvent::Focused);
8941
8942 if let Some(rename) = self.pending_rename.as_ref() {
8943 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8944 cx.focus(&rename_editor_focus_handle);
8945 } else {
8946 self.blink_manager.update(cx, BlinkManager::enable);
8947 self.show_cursor_names(cx);
8948 self.buffer.update(cx, |buffer, cx| {
8949 buffer.finalize_last_transaction(cx);
8950 if self.leader_peer_id.is_none() {
8951 buffer.set_active_selections(
8952 &self.selections.disjoint_anchors(),
8953 self.selections.line_mode,
8954 self.cursor_shape,
8955 cx,
8956 );
8957 }
8958 });
8959 }
8960 }
8961
8962 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
8963 self.blink_manager.update(cx, BlinkManager::disable);
8964 self.buffer
8965 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
8966 self.hide_context_menu(cx);
8967 hide_hover(self, cx);
8968 cx.emit(EditorEvent::Blurred);
8969 cx.notify();
8970 }
8971
8972 pub fn register_action<A: Action>(
8973 &mut self,
8974 listener: impl Fn(&A, &mut WindowContext) + 'static,
8975 ) -> &mut Self {
8976 let listener = Arc::new(listener);
8977
8978 self.editor_actions.push(Box::new(move |cx| {
8979 let _view = cx.view().clone();
8980 let cx = cx.window_context();
8981 let listener = listener.clone();
8982 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
8983 let action = action.downcast_ref().unwrap();
8984 if phase == DispatchPhase::Bubble {
8985 listener(action, cx)
8986 }
8987 })
8988 }));
8989 self
8990 }
8991}
8992
8993pub trait CollaborationHub {
8994 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
8995 fn user_participant_indices<'a>(
8996 &self,
8997 cx: &'a AppContext,
8998 ) -> &'a HashMap<u64, ParticipantIndex>;
8999 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9000}
9001
9002impl CollaborationHub for Model<Project> {
9003 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9004 self.read(cx).collaborators()
9005 }
9006
9007 fn user_participant_indices<'a>(
9008 &self,
9009 cx: &'a AppContext,
9010 ) -> &'a HashMap<u64, ParticipantIndex> {
9011 self.read(cx).user_store().read(cx).participant_indices()
9012 }
9013
9014 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9015 let this = self.read(cx);
9016 let user_ids = this.collaborators().values().map(|c| c.user_id);
9017 this.user_store().read_with(cx, |user_store, cx| {
9018 user_store.participant_names(user_ids, cx)
9019 })
9020 }
9021}
9022
9023pub trait CompletionProvider {
9024 fn completions(
9025 &self,
9026 buffer: &Model<Buffer>,
9027 buffer_position: text::Anchor,
9028 cx: &mut ViewContext<Editor>,
9029 ) -> Task<Result<Vec<Completion>>>;
9030
9031 fn resolve_completions(
9032 &self,
9033 completion_indices: Vec<usize>,
9034 completions: Arc<RwLock<Box<[Completion]>>>,
9035 cx: &mut ViewContext<Editor>,
9036 ) -> Task<Result<bool>>;
9037
9038 fn apply_additional_edits_for_completion(
9039 &self,
9040 buffer: Model<Buffer>,
9041 completion: Completion,
9042 push_to_history: bool,
9043 cx: &mut ViewContext<Editor>,
9044 ) -> Task<Result<Option<language::Transaction>>>;
9045}
9046
9047impl CompletionProvider for Model<Project> {
9048 fn completions(
9049 &self,
9050 buffer: &Model<Buffer>,
9051 buffer_position: text::Anchor,
9052 cx: &mut ViewContext<Editor>,
9053 ) -> Task<Result<Vec<Completion>>> {
9054 self.update(cx, |project, cx| {
9055 project.completions(&buffer, buffer_position, cx)
9056 })
9057 }
9058
9059 fn resolve_completions(
9060 &self,
9061 completion_indices: Vec<usize>,
9062 completions: Arc<RwLock<Box<[Completion]>>>,
9063 cx: &mut ViewContext<Editor>,
9064 ) -> Task<Result<bool>> {
9065 self.update(cx, |project, cx| {
9066 project.resolve_completions(completion_indices, completions, cx)
9067 })
9068 }
9069
9070 fn apply_additional_edits_for_completion(
9071 &self,
9072 buffer: Model<Buffer>,
9073 completion: Completion,
9074 push_to_history: bool,
9075 cx: &mut ViewContext<Editor>,
9076 ) -> Task<Result<Option<language::Transaction>>> {
9077 self.update(cx, |project, cx| {
9078 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9079 })
9080 }
9081}
9082
9083fn inlay_hint_settings(
9084 location: Anchor,
9085 snapshot: &MultiBufferSnapshot,
9086 cx: &mut ViewContext<'_, Editor>,
9087) -> InlayHintSettings {
9088 let file = snapshot.file_at(location);
9089 let language = snapshot.language_at(location);
9090 let settings = all_language_settings(file, cx);
9091 settings
9092 .language(language.map(|l| l.name()).as_deref())
9093 .inlay_hints
9094}
9095
9096fn consume_contiguous_rows(
9097 contiguous_row_selections: &mut Vec<Selection<Point>>,
9098 selection: &Selection<Point>,
9099 display_map: &DisplaySnapshot,
9100 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9101) -> (u32, u32) {
9102 contiguous_row_selections.push(selection.clone());
9103 let start_row = selection.start.row;
9104 let mut end_row = ending_row(selection, display_map);
9105
9106 while let Some(next_selection) = selections.peek() {
9107 if next_selection.start.row <= end_row {
9108 end_row = ending_row(next_selection, display_map);
9109 contiguous_row_selections.push(selections.next().unwrap().clone());
9110 } else {
9111 break;
9112 }
9113 }
9114 (start_row, end_row)
9115}
9116
9117fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9118 if next_selection.end.column > 0 || next_selection.is_empty() {
9119 display_map.next_line_boundary(next_selection.end).0.row + 1
9120 } else {
9121 next_selection.end.row
9122 }
9123}
9124
9125impl EditorSnapshot {
9126 pub fn remote_selections_in_range<'a>(
9127 &'a self,
9128 range: &'a Range<Anchor>,
9129 collaboration_hub: &dyn CollaborationHub,
9130 cx: &'a AppContext,
9131 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9132 let participant_names = collaboration_hub.user_names(cx);
9133 let participant_indices = collaboration_hub.user_participant_indices(cx);
9134 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9135 let collaborators_by_replica_id = collaborators_by_peer_id
9136 .iter()
9137 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9138 .collect::<HashMap<_, _>>();
9139 self.buffer_snapshot
9140 .remote_selections_in_range(range)
9141 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9142 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9143 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9144 let user_name = participant_names.get(&collaborator.user_id).cloned();
9145 Some(RemoteSelection {
9146 replica_id,
9147 selection,
9148 cursor_shape,
9149 line_mode,
9150 participant_index,
9151 peer_id: collaborator.peer_id,
9152 user_name,
9153 })
9154 })
9155 }
9156
9157 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9158 self.display_snapshot.buffer_snapshot.language_at(position)
9159 }
9160
9161 pub fn is_focused(&self) -> bool {
9162 self.is_focused
9163 }
9164
9165 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9166 self.placeholder_text.as_ref()
9167 }
9168
9169 pub fn scroll_position(&self) -> gpui::Point<f32> {
9170 self.scroll_anchor.scroll_position(&self.display_snapshot)
9171 }
9172
9173 pub fn gutter_dimensions(
9174 &self,
9175 font_id: FontId,
9176 font_size: Pixels,
9177 em_width: Pixels,
9178 max_line_number_width: Pixels,
9179 cx: &AppContext,
9180 ) -> GutterDimensions {
9181 if self.show_gutter {
9182 let descent = cx.text_system().descent(font_id, font_size);
9183 let gutter_padding_factor = 4.0;
9184 let gutter_padding = (em_width * gutter_padding_factor).round();
9185 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9186 let min_width_for_number_on_gutter = em_width * 4.0;
9187 let gutter_width =
9188 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9189 let gutter_margin = -descent;
9190
9191 GutterDimensions {
9192 padding: gutter_padding,
9193 width: gutter_width,
9194 margin: gutter_margin,
9195 }
9196 } else {
9197 GutterDimensions::default()
9198 }
9199 }
9200}
9201
9202impl Deref for EditorSnapshot {
9203 type Target = DisplaySnapshot;
9204
9205 fn deref(&self) -> &Self::Target {
9206 &self.display_snapshot
9207 }
9208}
9209
9210#[derive(Clone, Debug, PartialEq, Eq)]
9211pub enum EditorEvent {
9212 InputIgnored {
9213 text: Arc<str>,
9214 },
9215 InputHandled {
9216 utf16_range_to_replace: Option<Range<isize>>,
9217 text: Arc<str>,
9218 },
9219 ExcerptsAdded {
9220 buffer: Model<Buffer>,
9221 predecessor: ExcerptId,
9222 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9223 },
9224 ExcerptsRemoved {
9225 ids: Vec<ExcerptId>,
9226 },
9227 BufferEdited,
9228 Edited,
9229 Reparsed,
9230 Focused,
9231 Blurred,
9232 DirtyChanged,
9233 Saved,
9234 TitleChanged,
9235 DiffBaseChanged,
9236 SelectionsChanged {
9237 local: bool,
9238 },
9239 ScrollPositionChanged {
9240 local: bool,
9241 autoscroll: bool,
9242 },
9243 Closed,
9244}
9245
9246impl EventEmitter<EditorEvent> for Editor {}
9247
9248impl FocusableView for Editor {
9249 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9250 self.focus_handle.clone()
9251 }
9252}
9253
9254impl Render for Editor {
9255 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9256 let settings = ThemeSettings::get_global(cx);
9257 let text_style = match self.mode {
9258 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9259 color: cx.theme().colors().editor_foreground,
9260 font_family: settings.ui_font.family.clone(),
9261 font_features: settings.ui_font.features,
9262 font_size: rems(0.875).into(),
9263 font_weight: FontWeight::NORMAL,
9264 font_style: FontStyle::Normal,
9265 line_height: relative(settings.buffer_line_height.value()),
9266 background_color: None,
9267 underline: None,
9268 white_space: WhiteSpace::Normal,
9269 },
9270
9271 EditorMode::Full => TextStyle {
9272 color: cx.theme().colors().editor_foreground,
9273 font_family: settings.buffer_font.family.clone(),
9274 font_features: settings.buffer_font.features,
9275 font_size: settings.buffer_font_size(cx).into(),
9276 font_weight: FontWeight::NORMAL,
9277 font_style: FontStyle::Normal,
9278 line_height: relative(settings.buffer_line_height.value()),
9279 background_color: None,
9280 underline: None,
9281 white_space: WhiteSpace::Normal,
9282 },
9283 };
9284
9285 let background = match self.mode {
9286 EditorMode::SingleLine => cx.theme().system().transparent,
9287 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9288 EditorMode::Full => cx.theme().colors().editor_background,
9289 };
9290
9291 EditorElement::new(
9292 cx.view(),
9293 EditorStyle {
9294 background,
9295 local_player: cx.theme().players().local(),
9296 text: text_style,
9297 scrollbar_width: px(12.),
9298 syntax: cx.theme().syntax().clone(),
9299 status: cx.theme().status().clone(),
9300 inlays_style: HighlightStyle {
9301 color: Some(cx.theme().status().hint),
9302 font_weight: Some(FontWeight::BOLD),
9303 ..HighlightStyle::default()
9304 },
9305 suggestions_style: HighlightStyle {
9306 color: Some(cx.theme().status().predictive),
9307 ..HighlightStyle::default()
9308 },
9309 },
9310 )
9311 }
9312}
9313
9314impl ViewInputHandler for Editor {
9315 fn text_for_range(
9316 &mut self,
9317 range_utf16: Range<usize>,
9318 cx: &mut ViewContext<Self>,
9319 ) -> Option<String> {
9320 Some(
9321 self.buffer
9322 .read(cx)
9323 .read(cx)
9324 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9325 .collect(),
9326 )
9327 }
9328
9329 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9330 // Prevent the IME menu from appearing when holding down an alphabetic key
9331 // while input is disabled.
9332 if !self.input_enabled {
9333 return None;
9334 }
9335
9336 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9337 Some(range.start.0..range.end.0)
9338 }
9339
9340 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9341 let snapshot = self.buffer.read(cx).read(cx);
9342 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9343 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9344 }
9345
9346 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9347 self.clear_highlights::<InputComposition>(cx);
9348 self.ime_transaction.take();
9349 }
9350
9351 fn replace_text_in_range(
9352 &mut self,
9353 range_utf16: Option<Range<usize>>,
9354 text: &str,
9355 cx: &mut ViewContext<Self>,
9356 ) {
9357 if !self.input_enabled {
9358 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9359 return;
9360 }
9361
9362 self.transact(cx, |this, cx| {
9363 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9364 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9365 Some(this.selection_replacement_ranges(range_utf16, cx))
9366 } else {
9367 this.marked_text_ranges(cx)
9368 };
9369
9370 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9371 let newest_selection_id = this.selections.newest_anchor().id;
9372 this.selections
9373 .all::<OffsetUtf16>(cx)
9374 .iter()
9375 .zip(ranges_to_replace.iter())
9376 .find_map(|(selection, range)| {
9377 if selection.id == newest_selection_id {
9378 Some(
9379 (range.start.0 as isize - selection.head().0 as isize)
9380 ..(range.end.0 as isize - selection.head().0 as isize),
9381 )
9382 } else {
9383 None
9384 }
9385 })
9386 });
9387
9388 cx.emit(EditorEvent::InputHandled {
9389 utf16_range_to_replace: range_to_replace,
9390 text: text.into(),
9391 });
9392
9393 if let Some(new_selected_ranges) = new_selected_ranges {
9394 this.change_selections(None, cx, |selections| {
9395 selections.select_ranges(new_selected_ranges)
9396 });
9397 }
9398
9399 this.handle_input(text, cx);
9400 });
9401
9402 if let Some(transaction) = self.ime_transaction {
9403 self.buffer.update(cx, |buffer, cx| {
9404 buffer.group_until_transaction(transaction, cx);
9405 });
9406 }
9407
9408 self.unmark_text(cx);
9409 }
9410
9411 fn replace_and_mark_text_in_range(
9412 &mut self,
9413 range_utf16: Option<Range<usize>>,
9414 text: &str,
9415 new_selected_range_utf16: Option<Range<usize>>,
9416 cx: &mut ViewContext<Self>,
9417 ) {
9418 if !self.input_enabled {
9419 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9420 return;
9421 }
9422
9423 let transaction = self.transact(cx, |this, cx| {
9424 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9425 let snapshot = this.buffer.read(cx).read(cx);
9426 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9427 for marked_range in &mut marked_ranges {
9428 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9429 marked_range.start.0 += relative_range_utf16.start;
9430 marked_range.start =
9431 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9432 marked_range.end =
9433 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9434 }
9435 }
9436 Some(marked_ranges)
9437 } else if let Some(range_utf16) = range_utf16 {
9438 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9439 Some(this.selection_replacement_ranges(range_utf16, cx))
9440 } else {
9441 None
9442 };
9443
9444 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9445 let newest_selection_id = this.selections.newest_anchor().id;
9446 this.selections
9447 .all::<OffsetUtf16>(cx)
9448 .iter()
9449 .zip(ranges_to_replace.iter())
9450 .find_map(|(selection, range)| {
9451 if selection.id == newest_selection_id {
9452 Some(
9453 (range.start.0 as isize - selection.head().0 as isize)
9454 ..(range.end.0 as isize - selection.head().0 as isize),
9455 )
9456 } else {
9457 None
9458 }
9459 })
9460 });
9461
9462 cx.emit(EditorEvent::InputHandled {
9463 utf16_range_to_replace: range_to_replace,
9464 text: text.into(),
9465 });
9466
9467 if let Some(ranges) = ranges_to_replace {
9468 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9469 }
9470
9471 let marked_ranges = {
9472 let snapshot = this.buffer.read(cx).read(cx);
9473 this.selections
9474 .disjoint_anchors()
9475 .iter()
9476 .map(|selection| {
9477 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9478 })
9479 .collect::<Vec<_>>()
9480 };
9481
9482 if text.is_empty() {
9483 this.unmark_text(cx);
9484 } else {
9485 this.highlight_text::<InputComposition>(
9486 marked_ranges.clone(),
9487 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9488 cx,
9489 );
9490 }
9491
9492 this.handle_input(text, cx);
9493
9494 if let Some(new_selected_range) = new_selected_range_utf16 {
9495 let snapshot = this.buffer.read(cx).read(cx);
9496 let new_selected_ranges = marked_ranges
9497 .into_iter()
9498 .map(|marked_range| {
9499 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9500 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9501 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9502 snapshot.clip_offset_utf16(new_start, Bias::Left)
9503 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9504 })
9505 .collect::<Vec<_>>();
9506
9507 drop(snapshot);
9508 this.change_selections(None, cx, |selections| {
9509 selections.select_ranges(new_selected_ranges)
9510 });
9511 }
9512 });
9513
9514 self.ime_transaction = self.ime_transaction.or(transaction);
9515 if let Some(transaction) = self.ime_transaction {
9516 self.buffer.update(cx, |buffer, cx| {
9517 buffer.group_until_transaction(transaction, cx);
9518 });
9519 }
9520
9521 if self.text_highlights::<InputComposition>(cx).is_none() {
9522 self.ime_transaction.take();
9523 }
9524 }
9525
9526 fn bounds_for_range(
9527 &mut self,
9528 range_utf16: Range<usize>,
9529 element_bounds: gpui::Bounds<Pixels>,
9530 cx: &mut ViewContext<Self>,
9531 ) -> Option<gpui::Bounds<Pixels>> {
9532 let text_layout_details = self.text_layout_details(cx);
9533 let style = &text_layout_details.editor_style;
9534 let font_id = cx.text_system().resolve_font(&style.text.font());
9535 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9536 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9537 let em_width = cx
9538 .text_system()
9539 .typographic_bounds(font_id, font_size, 'm')
9540 .unwrap()
9541 .size
9542 .width;
9543
9544 let snapshot = self.snapshot(cx);
9545 let scroll_position = snapshot.scroll_position();
9546 let scroll_left = scroll_position.x * em_width;
9547
9548 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9549 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9550 + self.gutter_width;
9551 let y = line_height * (start.row() as f32 - scroll_position.y);
9552
9553 Some(Bounds {
9554 origin: element_bounds.origin + point(x, y),
9555 size: size(em_width, line_height),
9556 })
9557 }
9558}
9559
9560trait SelectionExt {
9561 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9562 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9563 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9564 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9565 -> Range<u32>;
9566}
9567
9568impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9569 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9570 let start = self.start.to_point(buffer);
9571 let end = self.end.to_point(buffer);
9572 if self.reversed {
9573 end..start
9574 } else {
9575 start..end
9576 }
9577 }
9578
9579 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9580 let start = self.start.to_offset(buffer);
9581 let end = self.end.to_offset(buffer);
9582 if self.reversed {
9583 end..start
9584 } else {
9585 start..end
9586 }
9587 }
9588
9589 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9590 let start = self
9591 .start
9592 .to_point(&map.buffer_snapshot)
9593 .to_display_point(map);
9594 let end = self
9595 .end
9596 .to_point(&map.buffer_snapshot)
9597 .to_display_point(map);
9598 if self.reversed {
9599 end..start
9600 } else {
9601 start..end
9602 }
9603 }
9604
9605 fn spanned_rows(
9606 &self,
9607 include_end_if_at_line_start: bool,
9608 map: &DisplaySnapshot,
9609 ) -> Range<u32> {
9610 let start = self.start.to_point(&map.buffer_snapshot);
9611 let mut end = self.end.to_point(&map.buffer_snapshot);
9612 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9613 end.row -= 1;
9614 }
9615
9616 let buffer_start = map.prev_line_boundary(start).0;
9617 let buffer_end = map.next_line_boundary(end).0;
9618 buffer_start.row..buffer_end.row + 1
9619 }
9620}
9621
9622impl<T: InvalidationRegion> InvalidationStack<T> {
9623 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9624 where
9625 S: Clone + ToOffset,
9626 {
9627 while let Some(region) = self.last() {
9628 let all_selections_inside_invalidation_ranges =
9629 if selections.len() == region.ranges().len() {
9630 selections
9631 .iter()
9632 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9633 .all(|(selection, invalidation_range)| {
9634 let head = selection.head().to_offset(buffer);
9635 invalidation_range.start <= head && invalidation_range.end >= head
9636 })
9637 } else {
9638 false
9639 };
9640
9641 if all_selections_inside_invalidation_ranges {
9642 break;
9643 } else {
9644 self.pop();
9645 }
9646 }
9647 }
9648}
9649
9650impl<T> Default for InvalidationStack<T> {
9651 fn default() -> Self {
9652 Self(Default::default())
9653 }
9654}
9655
9656impl<T> Deref for InvalidationStack<T> {
9657 type Target = Vec<T>;
9658
9659 fn deref(&self) -> &Self::Target {
9660 &self.0
9661 }
9662}
9663
9664impl<T> DerefMut for InvalidationStack<T> {
9665 fn deref_mut(&mut self) -> &mut Self::Target {
9666 &mut self.0
9667 }
9668}
9669
9670impl InvalidationRegion for SnippetState {
9671 fn ranges(&self) -> &[Range<Anchor>] {
9672 &self.ranges[self.active_index]
9673 }
9674}
9675
9676pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9677 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9678
9679 Arc::new(move |cx: &mut BlockContext| {
9680 let group_id: SharedString = cx.block_id.to_string().into();
9681
9682 let mut text_style = cx.text_style().clone();
9683 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
9684
9685 h_flex()
9686 .id(cx.block_id)
9687 .group(group_id.clone())
9688 .relative()
9689 .size_full()
9690 .pl(cx.gutter_width)
9691 .w(cx.max_width + cx.gutter_width)
9692 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
9693 .child(div().flex().flex_shrink_0().child(
9694 StyledText::new(text_without_backticks.clone()).with_highlights(
9695 &text_style,
9696 code_ranges.iter().map(|range| {
9697 (
9698 range.clone(),
9699 HighlightStyle {
9700 font_weight: Some(FontWeight::BOLD),
9701 ..Default::default()
9702 },
9703 )
9704 }),
9705 ),
9706 ))
9707 .child(
9708 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9709 .icon_color(Color::Muted)
9710 .size(ButtonSize::Compact)
9711 .style(ButtonStyle::Transparent)
9712 .visible_on_hover(group_id)
9713 .on_click({
9714 let message = diagnostic.message.clone();
9715 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9716 })
9717 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9718 )
9719 .into_any_element()
9720 })
9721}
9722
9723pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9724 let mut text_without_backticks = String::new();
9725 let mut code_ranges = Vec::new();
9726
9727 if let Some(source) = &diagnostic.source {
9728 text_without_backticks.push_str(&source);
9729 code_ranges.push(0..source.len());
9730 text_without_backticks.push_str(": ");
9731 }
9732
9733 let mut prev_offset = 0;
9734 let mut in_code_block = false;
9735 for (ix, _) in diagnostic
9736 .message
9737 .match_indices('`')
9738 .chain([(diagnostic.message.len(), "")])
9739 {
9740 let prev_len = text_without_backticks.len();
9741 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9742 prev_offset = ix + 1;
9743 if in_code_block {
9744 code_ranges.push(prev_len..text_without_backticks.len());
9745 in_code_block = false;
9746 } else {
9747 in_code_block = true;
9748 }
9749 }
9750
9751 (text_without_backticks.into(), code_ranges)
9752}
9753
9754fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9755 match (severity, valid) {
9756 (DiagnosticSeverity::ERROR, true) => colors.error,
9757 (DiagnosticSeverity::ERROR, false) => colors.error,
9758 (DiagnosticSeverity::WARNING, true) => colors.warning,
9759 (DiagnosticSeverity::WARNING, false) => colors.warning,
9760 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9761 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9762 (DiagnosticSeverity::HINT, true) => colors.info,
9763 (DiagnosticSeverity::HINT, false) => colors.info,
9764 _ => colors.ignored,
9765 }
9766}
9767
9768pub fn styled_runs_for_code_label<'a>(
9769 label: &'a CodeLabel,
9770 syntax_theme: &'a theme::SyntaxTheme,
9771) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9772 let fade_out = HighlightStyle {
9773 fade_out: Some(0.35),
9774 ..Default::default()
9775 };
9776
9777 let mut prev_end = label.filter_range.end;
9778 label
9779 .runs
9780 .iter()
9781 .enumerate()
9782 .flat_map(move |(ix, (range, highlight_id))| {
9783 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9784 style
9785 } else {
9786 return Default::default();
9787 };
9788 let mut muted_style = style;
9789 muted_style.highlight(fade_out);
9790
9791 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9792 if range.start >= label.filter_range.end {
9793 if range.start > prev_end {
9794 runs.push((prev_end..range.start, fade_out));
9795 }
9796 runs.push((range.clone(), muted_style));
9797 } else if range.end <= label.filter_range.end {
9798 runs.push((range.clone(), style));
9799 } else {
9800 runs.push((range.start..label.filter_range.end, style));
9801 runs.push((label.filter_range.end..range.end, muted_style));
9802 }
9803 prev_end = cmp::max(prev_end, range.end);
9804
9805 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9806 runs.push((prev_end..label.text.len(), fade_out));
9807 }
9808
9809 runs
9810 })
9811}
9812
9813pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9814 let mut index = 0;
9815 let mut codepoints = text.char_indices().peekable();
9816
9817 std::iter::from_fn(move || {
9818 let start_index = index;
9819 while let Some((new_index, codepoint)) = codepoints.next() {
9820 index = new_index + codepoint.len_utf8();
9821 let current_upper = codepoint.is_uppercase();
9822 let next_upper = codepoints
9823 .peek()
9824 .map(|(_, c)| c.is_uppercase())
9825 .unwrap_or(false);
9826
9827 if !current_upper && next_upper {
9828 return Some(&text[start_index..index]);
9829 }
9830 }
9831
9832 index = text.len();
9833 if start_index < text.len() {
9834 return Some(&text[start_index..]);
9835 }
9836 None
9837 })
9838 .flat_map(|word| word.split_inclusive('_'))
9839 .flat_map(|word| word.split_inclusive('-'))
9840}
9841
9842trait RangeToAnchorExt {
9843 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9844}
9845
9846impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9847 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9848 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9849 }
9850}