1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod git;
23mod highlight_matching_bracket;
24mod hover_popover;
25pub mod items;
26mod link_go_to_definition;
27mod mouse_context_menu;
28pub mod movement;
29mod persistence;
30mod rust_analyzer_ext;
31pub mod scroll;
32mod selections_collection;
33
34#[cfg(test)]
35mod editor_tests;
36#[cfg(any(test, feature = "test-support"))]
37pub mod test;
38use ::git::diff::DiffHunk;
39pub(crate) use actions::*;
40use aho_corasick::AhoCorasick;
41use anyhow::{anyhow, Context as _, Result};
42use blink_manager::BlinkManager;
43use client::{Collaborator, ParticipantIndex};
44use clock::ReplicaId;
45use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
46use convert_case::{Case, Casing};
47use copilot::Copilot;
48pub use display_map::DisplayPoint;
49use display_map::*;
50pub use editor_settings::EditorSettings;
51use element::LineWithInvisibles;
52pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
53use futures::FutureExt;
54use fuzzy::{StringMatch, StringMatchCandidate};
55use git::diff_hunk_to_display;
56use gpui::{
57 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
58 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
59 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
60 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
61 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
62 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakView,
63 WhiteSpace, WindowContext,
64};
65use highlight_matching_bracket::refresh_matching_bracket_highlights;
66use hover_popover::{hide_hover, HoverState};
67use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
68pub use items::MAX_TAB_TITLE_LEN;
69use itertools::Itertools;
70use language::{char_kind, CharKind};
71use language::{
72 language_settings::{self, all_language_settings, InlayHintSettings},
73 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
74 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
75 Language, LanguageServerName, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
76};
77
78use link_go_to_definition::{GoToDefinitionLink, InlayHighlight, LinkGoToDefinitionState};
79use lsp::{DiagnosticSeverity, LanguageServerId};
80use mouse_context_menu::MouseContextMenu;
81use movement::TextLayoutDetails;
82use multi_buffer::ToOffsetUtf16;
83pub use multi_buffer::{
84 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
85 ToPoint,
86};
87use ordered_float::OrderedFloat;
88use parking_lot::RwLock;
89use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
90use rand::prelude::*;
91use rpc::proto::*;
92use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
93use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
94use serde::{Deserialize, Serialize};
95use settings::{Settings, SettingsStore};
96use smallvec::SmallVec;
97use snippet::Snippet;
98use std::{
99 any::TypeId,
100 borrow::Cow,
101 cmp::{self, Ordering, Reverse},
102 mem,
103 num::NonZeroU32,
104 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
105 path::Path,
106 sync::Arc,
107 sync::Weak,
108 time::{Duration, Instant},
109};
110pub use sum_tree::Bias;
111use sum_tree::TreeMap;
112use text::{OffsetUtf16, Rope};
113use theme::{
114 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
115 ThemeColors, ThemeSettings,
116};
117use ui::{
118 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
119 Tooltip,
120};
121use util::{post_inc, RangeExt, ResultExt, TryFutureExt};
122use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
123
124const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
125const MAX_LINE_LEN: usize = 1024;
126const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
127const MAX_SELECTION_HISTORY_LEN: usize = 1024;
128const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
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| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1293 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1294 Self::new(EditorMode::SingleLine, buffer, None, cx)
1295 }
1296
1297 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1298 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1299 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1300 Self::new(EditorMode::Full, buffer, None, cx)
1301 }
1302
1303 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1304 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1305 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1306 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1307 }
1308
1309 pub fn for_buffer(
1310 buffer: Model<Buffer>,
1311 project: Option<Model<Project>>,
1312 cx: &mut ViewContext<Self>,
1313 ) -> Self {
1314 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1315 Self::new(EditorMode::Full, buffer, project, cx)
1316 }
1317
1318 pub fn for_multibuffer(
1319 buffer: Model<MultiBuffer>,
1320 project: Option<Model<Project>>,
1321 cx: &mut ViewContext<Self>,
1322 ) -> Self {
1323 Self::new(EditorMode::Full, buffer, project, cx)
1324 }
1325
1326 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1327 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1328 self.display_map.update(cx, |display_map, cx| {
1329 let snapshot = display_map.snapshot(cx);
1330 clone.display_map.update(cx, |display_map, cx| {
1331 display_map.set_state(&snapshot, cx);
1332 });
1333 });
1334 clone.selections.clone_state(&self.selections);
1335 clone.scroll_manager.clone_state(&self.scroll_manager);
1336 clone.searchable = self.searchable;
1337 clone
1338 }
1339
1340 fn new(
1341 mode: EditorMode,
1342 buffer: Model<MultiBuffer>,
1343 project: Option<Model<Project>>,
1344 cx: &mut ViewContext<Self>,
1345 ) -> Self {
1346 let style = cx.text_style();
1347 let font_size = style.font_size.to_pixels(cx.rem_size());
1348 let display_map = cx.new_model(|cx| {
1349 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1350 });
1351
1352 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1353
1354 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1355
1356 let soft_wrap_mode_override =
1357 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1358
1359 let mut project_subscriptions = Vec::new();
1360 if mode == EditorMode::Full {
1361 if let Some(project) = project.as_ref() {
1362 if buffer.read(cx).is_singleton() {
1363 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1364 cx.emit(EditorEvent::TitleChanged);
1365 }));
1366 }
1367 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1368 if let project::Event::RefreshInlayHints = event {
1369 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1370 };
1371 }));
1372 }
1373 }
1374
1375 let inlay_hint_settings = inlay_hint_settings(
1376 selections.newest_anchor().head(),
1377 &buffer.read(cx).snapshot(cx),
1378 cx,
1379 );
1380
1381 let focus_handle = cx.focus_handle();
1382 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1383 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1384
1385 let mut this = Self {
1386 handle: cx.view().downgrade(),
1387 focus_handle,
1388 buffer: buffer.clone(),
1389 display_map: display_map.clone(),
1390 selections,
1391 scroll_manager: ScrollManager::new(),
1392 columnar_selection_tail: None,
1393 add_selections_state: None,
1394 select_next_state: None,
1395 select_prev_state: None,
1396 selection_history: Default::default(),
1397 autoclose_regions: Default::default(),
1398 snippet_stack: Default::default(),
1399 select_larger_syntax_node_stack: Vec::new(),
1400 ime_transaction: Default::default(),
1401 active_diagnostics: None,
1402 soft_wrap_mode_override,
1403 completion_provider: project.clone().map(|project| Box::new(project) as _),
1404 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1405 project,
1406 blink_manager: blink_manager.clone(),
1407 show_local_selections: true,
1408 mode,
1409 show_gutter: mode == EditorMode::Full,
1410 show_wrap_guides: None,
1411 placeholder_text: None,
1412 highlighted_rows: None,
1413 background_highlights: Default::default(),
1414 inlay_background_highlights: Default::default(),
1415 nav_history: None,
1416 context_menu: RwLock::new(None),
1417 mouse_context_menu: None,
1418 completion_tasks: Default::default(),
1419 next_completion_id: 0,
1420 next_inlay_id: 0,
1421 available_code_actions: Default::default(),
1422 code_actions_task: Default::default(),
1423 document_highlights_task: Default::default(),
1424 pending_rename: Default::default(),
1425 searchable: true,
1426 cursor_shape: Default::default(),
1427 autoindent_mode: Some(AutoindentMode::EachLine),
1428 collapse_matches: false,
1429 workspace: None,
1430 keymap_context_layers: Default::default(),
1431 input_enabled: true,
1432 read_only: false,
1433 use_autoclose: true,
1434 leader_peer_id: None,
1435 remote_id: None,
1436 hover_state: Default::default(),
1437 link_go_to_definition_state: Default::default(),
1438 copilot_state: Default::default(),
1439 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1440 gutter_hovered: false,
1441 pixel_position_of_newest_cursor: None,
1442 gutter_width: Default::default(),
1443 style: None,
1444 show_cursor_names: false,
1445 hovered_cursors: Default::default(),
1446 editor_actions: Default::default(),
1447 show_copilot_suggestions: mode == EditorMode::Full,
1448 _subscriptions: vec![
1449 cx.observe(&buffer, Self::on_buffer_changed),
1450 cx.subscribe(&buffer, Self::on_buffer_event),
1451 cx.observe(&display_map, Self::on_display_map_changed),
1452 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1453 cx.observe_global::<SettingsStore>(Self::settings_changed),
1454 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1455 cx.observe_window_activation(|editor, cx| {
1456 let active = cx.is_window_active();
1457 editor.blink_manager.update(cx, |blink_manager, cx| {
1458 if active {
1459 blink_manager.enable(cx);
1460 } else {
1461 blink_manager.show_cursor(cx);
1462 blink_manager.disable(cx);
1463 }
1464 });
1465 }),
1466 ],
1467 };
1468
1469 this._subscriptions.extend(project_subscriptions);
1470
1471 this.end_selection(cx);
1472 this.scroll_manager.show_scrollbar(cx);
1473
1474 if mode == EditorMode::Full {
1475 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1476 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1477 }
1478
1479 this.report_editor_event("open", None, cx);
1480 this
1481 }
1482
1483 fn key_context(&self, cx: &AppContext) -> KeyContext {
1484 let mut key_context = KeyContext::default();
1485 key_context.add("Editor");
1486 let mode = match self.mode {
1487 EditorMode::SingleLine => "single_line",
1488 EditorMode::AutoHeight { .. } => "auto_height",
1489 EditorMode::Full => "full",
1490 };
1491 key_context.set("mode", mode);
1492 if self.pending_rename.is_some() {
1493 key_context.add("renaming");
1494 }
1495 if self.context_menu_visible() {
1496 match self.context_menu.read().as_ref() {
1497 Some(ContextMenu::Completions(_)) => {
1498 key_context.add("menu");
1499 key_context.add("showing_completions")
1500 }
1501 Some(ContextMenu::CodeActions(_)) => {
1502 key_context.add("menu");
1503 key_context.add("showing_code_actions")
1504 }
1505 None => {}
1506 }
1507 }
1508
1509 for layer in self.keymap_context_layers.values() {
1510 key_context.extend(layer);
1511 }
1512
1513 if let Some(extension) = self
1514 .buffer
1515 .read(cx)
1516 .as_singleton()
1517 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1518 {
1519 key_context.set("extension", extension.to_string());
1520 }
1521
1522 key_context
1523 }
1524
1525 pub fn new_file(
1526 workspace: &mut Workspace,
1527 _: &workspace::NewFile,
1528 cx: &mut ViewContext<Workspace>,
1529 ) {
1530 let project = workspace.project().clone();
1531 if project.read(cx).is_remote() {
1532 cx.propagate();
1533 } else if let Some(buffer) = project
1534 .update(cx, |project, cx| project.create_buffer("", None, cx))
1535 .log_err()
1536 {
1537 workspace.add_item(
1538 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1539 cx,
1540 );
1541 }
1542 }
1543
1544 pub fn new_file_in_direction(
1545 workspace: &mut Workspace,
1546 action: &workspace::NewFileInDirection,
1547 cx: &mut ViewContext<Workspace>,
1548 ) {
1549 let project = workspace.project().clone();
1550 if project.read(cx).is_remote() {
1551 cx.propagate();
1552 } else if let Some(buffer) = project
1553 .update(cx, |project, cx| project.create_buffer("", None, cx))
1554 .log_err()
1555 {
1556 workspace.split_item(
1557 action.0,
1558 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1559 cx,
1560 );
1561 }
1562 }
1563
1564 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1565 self.buffer.read(cx).replica_id()
1566 }
1567
1568 pub fn leader_peer_id(&self) -> Option<PeerId> {
1569 self.leader_peer_id
1570 }
1571
1572 pub fn buffer(&self) -> &Model<MultiBuffer> {
1573 &self.buffer
1574 }
1575
1576 pub fn workspace(&self) -> Option<View<Workspace>> {
1577 self.workspace.as_ref()?.0.upgrade()
1578 }
1579
1580 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1581 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1582 }
1583
1584 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1585 self.buffer().read(cx).title(cx)
1586 }
1587
1588 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1589 EditorSnapshot {
1590 mode: self.mode,
1591 show_gutter: self.show_gutter,
1592 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1593 scroll_anchor: self.scroll_manager.anchor(),
1594 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1595 placeholder_text: self.placeholder_text.clone(),
1596 is_focused: self.focus_handle.is_focused(cx),
1597 }
1598 }
1599
1600 pub fn language_at<'a, T: ToOffset>(
1601 &self,
1602 point: T,
1603 cx: &'a AppContext,
1604 ) -> Option<Arc<Language>> {
1605 self.buffer.read(cx).language_at(point, cx)
1606 }
1607
1608 pub fn file_at<'a, T: ToOffset>(
1609 &self,
1610 point: T,
1611 cx: &'a AppContext,
1612 ) -> Option<Arc<dyn language::File>> {
1613 self.buffer.read(cx).read(cx).file_at(point).cloned()
1614 }
1615
1616 pub fn active_excerpt(
1617 &self,
1618 cx: &AppContext,
1619 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1620 self.buffer
1621 .read(cx)
1622 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1623 }
1624
1625 pub fn mode(&self) -> EditorMode {
1626 self.mode
1627 }
1628
1629 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1630 self.collaboration_hub.as_deref()
1631 }
1632
1633 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1634 self.collaboration_hub = Some(hub);
1635 }
1636
1637 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1638 self.completion_provider = Some(hub);
1639 }
1640
1641 pub fn placeholder_text(&self) -> Option<&str> {
1642 self.placeholder_text.as_deref()
1643 }
1644
1645 pub fn set_placeholder_text(
1646 &mut self,
1647 placeholder_text: impl Into<Arc<str>>,
1648 cx: &mut ViewContext<Self>,
1649 ) {
1650 let placeholder_text = Some(placeholder_text.into());
1651 if self.placeholder_text != placeholder_text {
1652 self.placeholder_text = placeholder_text;
1653 cx.notify();
1654 }
1655 }
1656
1657 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1658 self.cursor_shape = cursor_shape;
1659 cx.notify();
1660 }
1661
1662 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1663 self.collapse_matches = collapse_matches;
1664 }
1665
1666 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1667 if self.collapse_matches {
1668 return range.start..range.start;
1669 }
1670 range.clone()
1671 }
1672
1673 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1674 if self.display_map.read(cx).clip_at_line_ends != clip {
1675 self.display_map
1676 .update(cx, |map, _| map.clip_at_line_ends = clip);
1677 }
1678 }
1679
1680 pub fn set_keymap_context_layer<Tag: 'static>(
1681 &mut self,
1682 context: KeyContext,
1683 cx: &mut ViewContext<Self>,
1684 ) {
1685 self.keymap_context_layers
1686 .insert(TypeId::of::<Tag>(), context);
1687 cx.notify();
1688 }
1689
1690 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1691 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1692 cx.notify();
1693 }
1694
1695 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1696 self.input_enabled = input_enabled;
1697 }
1698
1699 pub fn set_autoindent(&mut self, autoindent: bool) {
1700 if autoindent {
1701 self.autoindent_mode = Some(AutoindentMode::EachLine);
1702 } else {
1703 self.autoindent_mode = None;
1704 }
1705 }
1706
1707 pub fn read_only(&self, cx: &AppContext) -> bool {
1708 self.read_only || self.buffer.read(cx).read_only()
1709 }
1710
1711 pub fn set_read_only(&mut self, read_only: bool) {
1712 self.read_only = read_only;
1713 }
1714
1715 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1716 self.use_autoclose = autoclose;
1717 }
1718
1719 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1720 self.show_copilot_suggestions = show_copilot_suggestions;
1721 }
1722
1723 fn selections_did_change(
1724 &mut self,
1725 local: bool,
1726 old_cursor_position: &Anchor,
1727 cx: &mut ViewContext<Self>,
1728 ) {
1729 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1730 self.buffer.update(cx, |buffer, cx| {
1731 buffer.set_active_selections(
1732 &self.selections.disjoint_anchors(),
1733 self.selections.line_mode,
1734 self.cursor_shape,
1735 cx,
1736 )
1737 });
1738 }
1739
1740 let display_map = self
1741 .display_map
1742 .update(cx, |display_map, cx| display_map.snapshot(cx));
1743 let buffer = &display_map.buffer_snapshot;
1744 self.add_selections_state = None;
1745 self.select_next_state = None;
1746 self.select_prev_state = None;
1747 self.select_larger_syntax_node_stack.clear();
1748 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1749 self.snippet_stack
1750 .invalidate(&self.selections.disjoint_anchors(), buffer);
1751 self.take_rename(false, cx);
1752
1753 let new_cursor_position = self.selections.newest_anchor().head();
1754
1755 self.push_to_nav_history(
1756 old_cursor_position.clone(),
1757 Some(new_cursor_position.to_point(buffer)),
1758 cx,
1759 );
1760
1761 if local {
1762 let new_cursor_position = self.selections.newest_anchor().head();
1763 let mut context_menu = self.context_menu.write();
1764 let completion_menu = match context_menu.as_ref() {
1765 Some(ContextMenu::Completions(menu)) => Some(menu),
1766
1767 _ => {
1768 *context_menu = None;
1769 None
1770 }
1771 };
1772
1773 if let Some(completion_menu) = completion_menu {
1774 let cursor_position = new_cursor_position.to_offset(buffer);
1775 let (word_range, kind) =
1776 buffer.surrounding_word(completion_menu.initial_position.clone());
1777 if kind == Some(CharKind::Word)
1778 && word_range.to_inclusive().contains(&cursor_position)
1779 {
1780 let mut completion_menu = completion_menu.clone();
1781 drop(context_menu);
1782
1783 let query = Self::completion_query(buffer, cursor_position);
1784 cx.spawn(move |this, mut cx| async move {
1785 completion_menu
1786 .filter(query.as_deref(), cx.background_executor().clone())
1787 .await;
1788
1789 this.update(&mut cx, |this, cx| {
1790 let mut context_menu = this.context_menu.write();
1791 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1792 return;
1793 };
1794
1795 if menu.id > completion_menu.id {
1796 return;
1797 }
1798
1799 *context_menu = Some(ContextMenu::Completions(completion_menu));
1800 drop(context_menu);
1801 cx.notify();
1802 })
1803 })
1804 .detach();
1805
1806 self.show_completions(&ShowCompletions, cx);
1807 } else {
1808 drop(context_menu);
1809 self.hide_context_menu(cx);
1810 }
1811 } else {
1812 drop(context_menu);
1813 }
1814
1815 hide_hover(self, cx);
1816
1817 if old_cursor_position.to_display_point(&display_map).row()
1818 != new_cursor_position.to_display_point(&display_map).row()
1819 {
1820 self.available_code_actions.take();
1821 }
1822 self.refresh_code_actions(cx);
1823 self.refresh_document_highlights(cx);
1824 refresh_matching_bracket_highlights(self, cx);
1825 self.discard_copilot_suggestion(cx);
1826 }
1827
1828 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1829 cx.emit(EditorEvent::SelectionsChanged { local });
1830
1831 if self.selections.disjoint_anchors().len() == 1 {
1832 cx.emit(SearchEvent::ActiveMatchChanged)
1833 }
1834
1835 cx.notify();
1836 }
1837
1838 pub fn change_selections<R>(
1839 &mut self,
1840 autoscroll: Option<Autoscroll>,
1841 cx: &mut ViewContext<Self>,
1842 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1843 ) -> R {
1844 let old_cursor_position = self.selections.newest_anchor().head();
1845 self.push_to_selection_history();
1846
1847 let (changed, result) = self.selections.change_with(cx, change);
1848
1849 if changed {
1850 if let Some(autoscroll) = autoscroll {
1851 self.request_autoscroll(autoscroll, cx);
1852 }
1853 self.selections_did_change(true, &old_cursor_position, cx);
1854 }
1855
1856 result
1857 }
1858
1859 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1860 where
1861 I: IntoIterator<Item = (Range<S>, T)>,
1862 S: ToOffset,
1863 T: Into<Arc<str>>,
1864 {
1865 if self.read_only(cx) {
1866 return;
1867 }
1868
1869 self.buffer
1870 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1871 }
1872
1873 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1874 where
1875 I: IntoIterator<Item = (Range<S>, T)>,
1876 S: ToOffset,
1877 T: Into<Arc<str>>,
1878 {
1879 if self.read_only(cx) {
1880 return;
1881 }
1882
1883 self.buffer.update(cx, |buffer, cx| {
1884 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1885 });
1886 }
1887
1888 pub fn edit_with_block_indent<I, S, T>(
1889 &mut self,
1890 edits: I,
1891 original_indent_columns: Vec<u32>,
1892 cx: &mut ViewContext<Self>,
1893 ) where
1894 I: IntoIterator<Item = (Range<S>, T)>,
1895 S: ToOffset,
1896 T: Into<Arc<str>>,
1897 {
1898 if self.read_only(cx) {
1899 return;
1900 }
1901
1902 self.buffer.update(cx, |buffer, cx| {
1903 buffer.edit(
1904 edits,
1905 Some(AutoindentMode::Block {
1906 original_indent_columns,
1907 }),
1908 cx,
1909 )
1910 });
1911 }
1912
1913 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1914 self.hide_context_menu(cx);
1915
1916 match phase {
1917 SelectPhase::Begin {
1918 position,
1919 add,
1920 click_count,
1921 } => self.begin_selection(position, add, click_count, cx),
1922 SelectPhase::BeginColumnar {
1923 position,
1924 goal_column,
1925 } => self.begin_columnar_selection(position, goal_column, cx),
1926 SelectPhase::Extend {
1927 position,
1928 click_count,
1929 } => self.extend_selection(position, click_count, cx),
1930 SelectPhase::Update {
1931 position,
1932 goal_column,
1933 scroll_delta,
1934 } => self.update_selection(position, goal_column, scroll_delta, cx),
1935 SelectPhase::End => self.end_selection(cx),
1936 }
1937 }
1938
1939 fn extend_selection(
1940 &mut self,
1941 position: DisplayPoint,
1942 click_count: usize,
1943 cx: &mut ViewContext<Self>,
1944 ) {
1945 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1946 let tail = self.selections.newest::<usize>(cx).tail();
1947 self.begin_selection(position, false, click_count, cx);
1948
1949 let position = position.to_offset(&display_map, Bias::Left);
1950 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1951
1952 let mut pending_selection = self
1953 .selections
1954 .pending_anchor()
1955 .expect("extend_selection not called with pending selection");
1956 if position >= tail {
1957 pending_selection.start = tail_anchor;
1958 } else {
1959 pending_selection.end = tail_anchor;
1960 pending_selection.reversed = true;
1961 }
1962
1963 let mut pending_mode = self.selections.pending_mode().unwrap();
1964 match &mut pending_mode {
1965 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
1966 _ => {}
1967 }
1968
1969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
1970 s.set_pending(pending_selection, pending_mode)
1971 });
1972 }
1973
1974 fn begin_selection(
1975 &mut self,
1976 position: DisplayPoint,
1977 add: bool,
1978 click_count: usize,
1979 cx: &mut ViewContext<Self>,
1980 ) {
1981 if !self.focus_handle.is_focused(cx) {
1982 cx.focus(&self.focus_handle);
1983 }
1984
1985 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1986 let buffer = &display_map.buffer_snapshot;
1987 let newest_selection = self.selections.newest_anchor().clone();
1988 let position = display_map.clip_point(position, Bias::Left);
1989
1990 let start;
1991 let end;
1992 let mode;
1993 let auto_scroll;
1994 match click_count {
1995 1 => {
1996 start = buffer.anchor_before(position.to_point(&display_map));
1997 end = start.clone();
1998 mode = SelectMode::Character;
1999 auto_scroll = true;
2000 }
2001 2 => {
2002 let range = movement::surrounding_word(&display_map, position);
2003 start = buffer.anchor_before(range.start.to_point(&display_map));
2004 end = buffer.anchor_before(range.end.to_point(&display_map));
2005 mode = SelectMode::Word(start.clone()..end.clone());
2006 auto_scroll = true;
2007 }
2008 3 => {
2009 let position = display_map
2010 .clip_point(position, Bias::Left)
2011 .to_point(&display_map);
2012 let line_start = display_map.prev_line_boundary(position).0;
2013 let next_line_start = buffer.clip_point(
2014 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2015 Bias::Left,
2016 );
2017 start = buffer.anchor_before(line_start);
2018 end = buffer.anchor_before(next_line_start);
2019 mode = SelectMode::Line(start.clone()..end.clone());
2020 auto_scroll = true;
2021 }
2022 _ => {
2023 start = buffer.anchor_before(0);
2024 end = buffer.anchor_before(buffer.len());
2025 mode = SelectMode::All;
2026 auto_scroll = false;
2027 }
2028 }
2029
2030 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2031 if !add {
2032 s.clear_disjoint();
2033 } else if click_count > 1 {
2034 s.delete(newest_selection.id)
2035 }
2036
2037 s.set_pending_anchor_range(start..end, mode);
2038 });
2039 }
2040
2041 fn begin_columnar_selection(
2042 &mut self,
2043 position: DisplayPoint,
2044 goal_column: u32,
2045 cx: &mut ViewContext<Self>,
2046 ) {
2047 if !self.focus_handle.is_focused(cx) {
2048 cx.focus(&self.focus_handle);
2049 }
2050
2051 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2052 let tail = self.selections.newest::<Point>(cx).tail();
2053 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2054
2055 self.select_columns(
2056 tail.to_display_point(&display_map),
2057 position,
2058 goal_column,
2059 &display_map,
2060 cx,
2061 );
2062 }
2063
2064 fn update_selection(
2065 &mut self,
2066 position: DisplayPoint,
2067 goal_column: u32,
2068 scroll_delta: gpui::Point<f32>,
2069 cx: &mut ViewContext<Self>,
2070 ) {
2071 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2072
2073 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2074 let tail = tail.to_display_point(&display_map);
2075 self.select_columns(tail, position, goal_column, &display_map, cx);
2076 } else if let Some(mut pending) = self.selections.pending_anchor() {
2077 let buffer = self.buffer.read(cx).snapshot(cx);
2078 let head;
2079 let tail;
2080 let mode = self.selections.pending_mode().unwrap();
2081 match &mode {
2082 SelectMode::Character => {
2083 head = position.to_point(&display_map);
2084 tail = pending.tail().to_point(&buffer);
2085 }
2086 SelectMode::Word(original_range) => {
2087 let original_display_range = original_range.start.to_display_point(&display_map)
2088 ..original_range.end.to_display_point(&display_map);
2089 let original_buffer_range = original_display_range.start.to_point(&display_map)
2090 ..original_display_range.end.to_point(&display_map);
2091 if movement::is_inside_word(&display_map, position)
2092 || original_display_range.contains(&position)
2093 {
2094 let word_range = movement::surrounding_word(&display_map, position);
2095 if word_range.start < original_display_range.start {
2096 head = word_range.start.to_point(&display_map);
2097 } else {
2098 head = word_range.end.to_point(&display_map);
2099 }
2100 } else {
2101 head = position.to_point(&display_map);
2102 }
2103
2104 if head <= original_buffer_range.start {
2105 tail = original_buffer_range.end;
2106 } else {
2107 tail = original_buffer_range.start;
2108 }
2109 }
2110 SelectMode::Line(original_range) => {
2111 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2112
2113 let position = display_map
2114 .clip_point(position, Bias::Left)
2115 .to_point(&display_map);
2116 let line_start = display_map.prev_line_boundary(position).0;
2117 let next_line_start = buffer.clip_point(
2118 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2119 Bias::Left,
2120 );
2121
2122 if line_start < original_range.start {
2123 head = line_start
2124 } else {
2125 head = next_line_start
2126 }
2127
2128 if head <= original_range.start {
2129 tail = original_range.end;
2130 } else {
2131 tail = original_range.start;
2132 }
2133 }
2134 SelectMode::All => {
2135 return;
2136 }
2137 };
2138
2139 if head < tail {
2140 pending.start = buffer.anchor_before(head);
2141 pending.end = buffer.anchor_before(tail);
2142 pending.reversed = true;
2143 } else {
2144 pending.start = buffer.anchor_before(tail);
2145 pending.end = buffer.anchor_before(head);
2146 pending.reversed = false;
2147 }
2148
2149 self.change_selections(None, cx, |s| {
2150 s.set_pending(pending, mode);
2151 });
2152 } else {
2153 log::error!("update_selection dispatched with no pending selection");
2154 return;
2155 }
2156
2157 self.apply_scroll_delta(scroll_delta, cx);
2158 cx.notify();
2159 }
2160
2161 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2162 self.columnar_selection_tail.take();
2163 if self.selections.pending_anchor().is_some() {
2164 let selections = self.selections.all::<usize>(cx);
2165 self.change_selections(None, cx, |s| {
2166 s.select(selections);
2167 s.clear_pending();
2168 });
2169 }
2170 }
2171
2172 fn select_columns(
2173 &mut self,
2174 tail: DisplayPoint,
2175 head: DisplayPoint,
2176 goal_column: u32,
2177 display_map: &DisplaySnapshot,
2178 cx: &mut ViewContext<Self>,
2179 ) {
2180 let start_row = cmp::min(tail.row(), head.row());
2181 let end_row = cmp::max(tail.row(), head.row());
2182 let start_column = cmp::min(tail.column(), goal_column);
2183 let end_column = cmp::max(tail.column(), goal_column);
2184 let reversed = start_column < tail.column();
2185
2186 let selection_ranges = (start_row..=end_row)
2187 .filter_map(|row| {
2188 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2189 let start = display_map
2190 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2191 .to_point(display_map);
2192 let end = display_map
2193 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2194 .to_point(display_map);
2195 if reversed {
2196 Some(end..start)
2197 } else {
2198 Some(start..end)
2199 }
2200 } else {
2201 None
2202 }
2203 })
2204 .collect::<Vec<_>>();
2205
2206 self.change_selections(None, cx, |s| {
2207 s.select_ranges(selection_ranges);
2208 });
2209 cx.notify();
2210 }
2211
2212 pub fn has_pending_nonempty_selection(&self) -> bool {
2213 let pending_nonempty_selection = match self.selections.pending_anchor() {
2214 Some(Selection { start, end, .. }) => start != end,
2215 None => false,
2216 };
2217 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2218 }
2219
2220 pub fn has_pending_selection(&self) -> bool {
2221 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2222 }
2223
2224 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2225 if self.take_rename(false, cx).is_some() {
2226 return;
2227 }
2228
2229 if hide_hover(self, cx) {
2230 return;
2231 }
2232
2233 if self.hide_context_menu(cx).is_some() {
2234 return;
2235 }
2236
2237 if self.discard_copilot_suggestion(cx) {
2238 return;
2239 }
2240
2241 if self.snippet_stack.pop().is_some() {
2242 return;
2243 }
2244
2245 if self.mode == EditorMode::Full {
2246 if self.active_diagnostics.is_some() {
2247 self.dismiss_diagnostics(cx);
2248 return;
2249 }
2250
2251 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2252 return;
2253 }
2254 }
2255
2256 cx.propagate();
2257 }
2258
2259 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2260 let text: Arc<str> = text.into();
2261
2262 if self.read_only(cx) {
2263 return;
2264 }
2265
2266 let selections = self.selections.all_adjusted(cx);
2267 let mut brace_inserted = false;
2268 let mut edits = Vec::new();
2269 let mut new_selections = Vec::with_capacity(selections.len());
2270 let mut new_autoclose_regions = Vec::new();
2271 let snapshot = self.buffer.read(cx).read(cx);
2272
2273 for (selection, autoclose_region) in
2274 self.selections_with_autoclose_regions(selections, &snapshot)
2275 {
2276 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2277 // Determine if the inserted text matches the opening or closing
2278 // bracket of any of this language's bracket pairs.
2279 let mut bracket_pair = None;
2280 let mut is_bracket_pair_start = false;
2281 if !text.is_empty() {
2282 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2283 // and they are removing the character that triggered IME popup.
2284 for (pair, enabled) in scope.brackets() {
2285 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2286 bracket_pair = Some(pair.clone());
2287 is_bracket_pair_start = true;
2288 break;
2289 } else if pair.end.as_str() == text.as_ref() {
2290 bracket_pair = Some(pair.clone());
2291 break;
2292 }
2293 }
2294 }
2295
2296 if let Some(bracket_pair) = bracket_pair {
2297 if selection.is_empty() {
2298 if is_bracket_pair_start {
2299 let prefix_len = bracket_pair.start.len() - text.len();
2300
2301 // If the inserted text is a suffix of an opening bracket and the
2302 // selection is preceded by the rest of the opening bracket, then
2303 // insert the closing bracket.
2304 let following_text_allows_autoclose = snapshot
2305 .chars_at(selection.start)
2306 .next()
2307 .map_or(true, |c| scope.should_autoclose_before(c));
2308 let preceding_text_matches_prefix = prefix_len == 0
2309 || (selection.start.column >= (prefix_len as u32)
2310 && snapshot.contains_str_at(
2311 Point::new(
2312 selection.start.row,
2313 selection.start.column - (prefix_len as u32),
2314 ),
2315 &bracket_pair.start[..prefix_len],
2316 ));
2317 let autoclose = self.use_autoclose
2318 && snapshot.settings_at(selection.start, cx).use_autoclose;
2319 if autoclose
2320 && following_text_allows_autoclose
2321 && preceding_text_matches_prefix
2322 {
2323 let anchor = snapshot.anchor_before(selection.end);
2324 new_selections.push((selection.map(|_| anchor), text.len()));
2325 new_autoclose_regions.push((
2326 anchor,
2327 text.len(),
2328 selection.id,
2329 bracket_pair.clone(),
2330 ));
2331 edits.push((
2332 selection.range(),
2333 format!("{}{}", text, bracket_pair.end).into(),
2334 ));
2335 brace_inserted = true;
2336 continue;
2337 }
2338 }
2339
2340 if let Some(region) = autoclose_region {
2341 // If the selection is followed by an auto-inserted closing bracket,
2342 // then don't insert that closing bracket again; just move the selection
2343 // past the closing bracket.
2344 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2345 && text.as_ref() == region.pair.end.as_str();
2346 if should_skip {
2347 let anchor = snapshot.anchor_after(selection.end);
2348 new_selections
2349 .push((selection.map(|_| anchor), region.pair.end.len()));
2350 continue;
2351 }
2352 }
2353 }
2354 // If an opening bracket is 1 character long and is typed while
2355 // text is selected, then surround that text with the bracket pair.
2356 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2357 edits.push((selection.start..selection.start, text.clone()));
2358 edits.push((
2359 selection.end..selection.end,
2360 bracket_pair.end.as_str().into(),
2361 ));
2362 brace_inserted = true;
2363 new_selections.push((
2364 Selection {
2365 id: selection.id,
2366 start: snapshot.anchor_after(selection.start),
2367 end: snapshot.anchor_before(selection.end),
2368 reversed: selection.reversed,
2369 goal: selection.goal,
2370 },
2371 0,
2372 ));
2373 continue;
2374 }
2375 }
2376 }
2377
2378 // If not handling any auto-close operation, then just replace the selected
2379 // text with the given input and move the selection to the end of the
2380 // newly inserted text.
2381 let anchor = snapshot.anchor_after(selection.end);
2382 new_selections.push((selection.map(|_| anchor), 0));
2383 edits.push((selection.start..selection.end, text.clone()));
2384 }
2385
2386 drop(snapshot);
2387 self.transact(cx, |this, cx| {
2388 this.buffer.update(cx, |buffer, cx| {
2389 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2390 });
2391
2392 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2393 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2394 let snapshot = this.buffer.read(cx).read(cx);
2395 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2396 .zip(new_selection_deltas)
2397 .map(|(selection, delta)| Selection {
2398 id: selection.id,
2399 start: selection.start + delta,
2400 end: selection.end + delta,
2401 reversed: selection.reversed,
2402 goal: SelectionGoal::None,
2403 })
2404 .collect::<Vec<_>>();
2405
2406 let mut i = 0;
2407 for (position, delta, selection_id, pair) in new_autoclose_regions {
2408 let position = position.to_offset(&snapshot) + delta;
2409 let start = snapshot.anchor_before(position);
2410 let end = snapshot.anchor_after(position);
2411 while let Some(existing_state) = this.autoclose_regions.get(i) {
2412 match existing_state.range.start.cmp(&start, &snapshot) {
2413 Ordering::Less => i += 1,
2414 Ordering::Greater => break,
2415 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2416 Ordering::Less => i += 1,
2417 Ordering::Equal => break,
2418 Ordering::Greater => break,
2419 },
2420 }
2421 }
2422 this.autoclose_regions.insert(
2423 i,
2424 AutocloseRegion {
2425 selection_id,
2426 range: start..end,
2427 pair,
2428 },
2429 );
2430 }
2431
2432 drop(snapshot);
2433 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2434 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2435
2436 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2437 if let Some(on_type_format_task) =
2438 this.trigger_on_type_formatting(text.to_string(), cx)
2439 {
2440 on_type_format_task.detach_and_log_err(cx);
2441 }
2442 }
2443
2444 if had_active_copilot_suggestion {
2445 this.refresh_copilot_suggestions(true, cx);
2446 if !this.has_active_copilot_suggestion(cx) {
2447 this.trigger_completion_on_input(&text, cx);
2448 }
2449 } else {
2450 this.trigger_completion_on_input(&text, cx);
2451 this.refresh_copilot_suggestions(true, cx);
2452 }
2453 });
2454 }
2455
2456 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2457 self.transact(cx, |this, cx| {
2458 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2459 let selections = this.selections.all::<usize>(cx);
2460 let multi_buffer = this.buffer.read(cx);
2461 let buffer = multi_buffer.snapshot(cx);
2462 selections
2463 .iter()
2464 .map(|selection| {
2465 let start_point = selection.start.to_point(&buffer);
2466 let mut indent = buffer.indent_size_for_line(start_point.row);
2467 indent.len = cmp::min(indent.len, start_point.column);
2468 let start = selection.start;
2469 let end = selection.end;
2470 let is_cursor = start == end;
2471 let language_scope = buffer.language_scope_at(start);
2472 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2473 &language_scope
2474 {
2475 let leading_whitespace_len = buffer
2476 .reversed_chars_at(start)
2477 .take_while(|c| c.is_whitespace() && *c != '\n')
2478 .map(|c| c.len_utf8())
2479 .sum::<usize>();
2480
2481 let trailing_whitespace_len = buffer
2482 .chars_at(end)
2483 .take_while(|c| c.is_whitespace() && *c != '\n')
2484 .map(|c| c.len_utf8())
2485 .sum::<usize>();
2486
2487 let insert_extra_newline =
2488 language.brackets().any(|(pair, enabled)| {
2489 let pair_start = pair.start.trim_end();
2490 let pair_end = pair.end.trim_start();
2491
2492 enabled
2493 && pair.newline
2494 && buffer.contains_str_at(
2495 end + trailing_whitespace_len,
2496 pair_end,
2497 )
2498 && buffer.contains_str_at(
2499 (start - leading_whitespace_len)
2500 .saturating_sub(pair_start.len()),
2501 pair_start,
2502 )
2503 });
2504 // Comment extension on newline is allowed only for cursor selections
2505 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2506 let is_comment_extension_enabled =
2507 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2508 is_cursor && is_comment_extension_enabled
2509 });
2510 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2511 let max_len_of_delimiter =
2512 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2513 let (snapshot, range) =
2514 buffer.buffer_line_for_row(start_point.row)?;
2515
2516 let mut index_of_first_non_whitespace = 0;
2517 let comment_candidate = snapshot
2518 .chars_for_range(range)
2519 .skip_while(|c| {
2520 let should_skip = c.is_whitespace();
2521 if should_skip {
2522 index_of_first_non_whitespace += 1;
2523 }
2524 should_skip
2525 })
2526 .take(max_len_of_delimiter)
2527 .collect::<String>();
2528 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2529 comment_candidate.starts_with(comment_prefix.as_ref())
2530 })?;
2531 let cursor_is_placed_after_comment_marker =
2532 index_of_first_non_whitespace + comment_prefix.len()
2533 <= start_point.column as usize;
2534 if cursor_is_placed_after_comment_marker {
2535 Some(comment_prefix.clone())
2536 } else {
2537 None
2538 }
2539 };
2540 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2541 get_comment_delimiter(delimiters)
2542 } else {
2543 None
2544 };
2545 (comment_delimiter, insert_extra_newline)
2546 } else {
2547 (None, false)
2548 };
2549
2550 let capacity_for_delimiter = comment_delimiter
2551 .as_deref()
2552 .map(str::len)
2553 .unwrap_or_default();
2554 let mut new_text =
2555 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2556 new_text.push_str("\n");
2557 new_text.extend(indent.chars());
2558 if let Some(delimiter) = &comment_delimiter {
2559 new_text.push_str(&delimiter);
2560 }
2561 if insert_extra_newline {
2562 new_text = new_text.repeat(2);
2563 }
2564
2565 let anchor = buffer.anchor_after(end);
2566 let new_selection = selection.map(|_| anchor);
2567 (
2568 (start..end, new_text),
2569 (insert_extra_newline, new_selection),
2570 )
2571 })
2572 .unzip()
2573 };
2574
2575 this.edit_with_autoindent(edits, cx);
2576 let buffer = this.buffer.read(cx).snapshot(cx);
2577 let new_selections = selection_fixup_info
2578 .into_iter()
2579 .map(|(extra_newline_inserted, new_selection)| {
2580 let mut cursor = new_selection.end.to_point(&buffer);
2581 if extra_newline_inserted {
2582 cursor.row -= 1;
2583 cursor.column = buffer.line_len(cursor.row);
2584 }
2585 new_selection.map(|_| cursor)
2586 })
2587 .collect();
2588
2589 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2590 this.refresh_copilot_suggestions(true, cx);
2591 });
2592 }
2593
2594 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2595 let buffer = self.buffer.read(cx);
2596 let snapshot = buffer.snapshot(cx);
2597
2598 let mut edits = Vec::new();
2599 let mut rows = Vec::new();
2600 let mut rows_inserted = 0;
2601
2602 for selection in self.selections.all_adjusted(cx) {
2603 let cursor = selection.head();
2604 let row = cursor.row;
2605
2606 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2607
2608 let newline = "\n".to_string();
2609 edits.push((start_of_line..start_of_line, newline));
2610
2611 rows.push(row + rows_inserted);
2612 rows_inserted += 1;
2613 }
2614
2615 self.transact(cx, |editor, cx| {
2616 editor.edit(edits, cx);
2617
2618 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2619 let mut index = 0;
2620 s.move_cursors_with(|map, _, _| {
2621 let row = rows[index];
2622 index += 1;
2623
2624 let point = Point::new(row, 0);
2625 let boundary = map.next_line_boundary(point).1;
2626 let clipped = map.clip_point(boundary, Bias::Left);
2627
2628 (clipped, SelectionGoal::None)
2629 });
2630 });
2631
2632 let mut indent_edits = Vec::new();
2633 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2634 for row in rows {
2635 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2636 for (row, indent) in indents {
2637 if indent.len == 0 {
2638 continue;
2639 }
2640
2641 let text = match indent.kind {
2642 IndentKind::Space => " ".repeat(indent.len as usize),
2643 IndentKind::Tab => "\t".repeat(indent.len as usize),
2644 };
2645 let point = Point::new(row, 0);
2646 indent_edits.push((point..point, text));
2647 }
2648 }
2649 editor.edit(indent_edits, cx);
2650 });
2651 }
2652
2653 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2654 let buffer = self.buffer.read(cx);
2655 let snapshot = buffer.snapshot(cx);
2656
2657 let mut edits = Vec::new();
2658 let mut rows = Vec::new();
2659 let mut rows_inserted = 0;
2660
2661 for selection in self.selections.all_adjusted(cx) {
2662 let cursor = selection.head();
2663 let row = cursor.row;
2664
2665 let point = Point::new(row + 1, 0);
2666 let start_of_line = snapshot.clip_point(point, Bias::Left);
2667
2668 let newline = "\n".to_string();
2669 edits.push((start_of_line..start_of_line, newline));
2670
2671 rows_inserted += 1;
2672 rows.push(row + rows_inserted);
2673 }
2674
2675 self.transact(cx, |editor, cx| {
2676 editor.edit(edits, cx);
2677
2678 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2679 let mut index = 0;
2680 s.move_cursors_with(|map, _, _| {
2681 let row = rows[index];
2682 index += 1;
2683
2684 let point = Point::new(row, 0);
2685 let boundary = map.next_line_boundary(point).1;
2686 let clipped = map.clip_point(boundary, Bias::Left);
2687
2688 (clipped, SelectionGoal::None)
2689 });
2690 });
2691
2692 let mut indent_edits = Vec::new();
2693 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2694 for row in rows {
2695 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2696 for (row, indent) in indents {
2697 if indent.len == 0 {
2698 continue;
2699 }
2700
2701 let text = match indent.kind {
2702 IndentKind::Space => " ".repeat(indent.len as usize),
2703 IndentKind::Tab => "\t".repeat(indent.len as usize),
2704 };
2705 let point = Point::new(row, 0);
2706 indent_edits.push((point..point, text));
2707 }
2708 }
2709 editor.edit(indent_edits, cx);
2710 });
2711 }
2712
2713 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2714 self.insert_with_autoindent_mode(
2715 text,
2716 Some(AutoindentMode::Block {
2717 original_indent_columns: Vec::new(),
2718 }),
2719 cx,
2720 );
2721 }
2722
2723 fn insert_with_autoindent_mode(
2724 &mut self,
2725 text: &str,
2726 autoindent_mode: Option<AutoindentMode>,
2727 cx: &mut ViewContext<Self>,
2728 ) {
2729 if self.read_only(cx) {
2730 return;
2731 }
2732
2733 let text: Arc<str> = text.into();
2734 self.transact(cx, |this, cx| {
2735 let old_selections = this.selections.all_adjusted(cx);
2736 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2737 let anchors = {
2738 let snapshot = buffer.read(cx);
2739 old_selections
2740 .iter()
2741 .map(|s| {
2742 let anchor = snapshot.anchor_after(s.head());
2743 s.map(|_| anchor)
2744 })
2745 .collect::<Vec<_>>()
2746 };
2747 buffer.edit(
2748 old_selections
2749 .iter()
2750 .map(|s| (s.start..s.end, text.clone())),
2751 autoindent_mode,
2752 cx,
2753 );
2754 anchors
2755 });
2756
2757 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2758 s.select_anchors(selection_anchors);
2759 })
2760 });
2761 }
2762
2763 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2764 if !EditorSettings::get_global(cx).show_completions_on_input {
2765 return;
2766 }
2767
2768 let selection = self.selections.newest_anchor();
2769 if self
2770 .buffer
2771 .read(cx)
2772 .is_completion_trigger(selection.head(), text, cx)
2773 {
2774 self.show_completions(&ShowCompletions, cx);
2775 } else {
2776 self.hide_context_menu(cx);
2777 }
2778 }
2779
2780 /// If any empty selections is touching the start of its innermost containing autoclose
2781 /// region, expand it to select the brackets.
2782 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2783 let selections = self.selections.all::<usize>(cx);
2784 let buffer = self.buffer.read(cx).read(cx);
2785 let mut new_selections = Vec::new();
2786 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2787 if let (Some(region), true) = (region, selection.is_empty()) {
2788 let mut range = region.range.to_offset(&buffer);
2789 if selection.start == range.start {
2790 if range.start >= region.pair.start.len() {
2791 range.start -= region.pair.start.len();
2792 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2793 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2794 range.end += region.pair.end.len();
2795 selection.start = range.start;
2796 selection.end = range.end;
2797 }
2798 }
2799 }
2800 }
2801 }
2802 new_selections.push(selection);
2803 }
2804
2805 drop(buffer);
2806 self.change_selections(None, cx, |selections| selections.select(new_selections));
2807 }
2808
2809 /// Iterate the given selections, and for each one, find the smallest surrounding
2810 /// autoclose region. This uses the ordering of the selections and the autoclose
2811 /// regions to avoid repeated comparisons.
2812 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2813 &'a self,
2814 selections: impl IntoIterator<Item = Selection<D>>,
2815 buffer: &'a MultiBufferSnapshot,
2816 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2817 let mut i = 0;
2818 let mut regions = self.autoclose_regions.as_slice();
2819 selections.into_iter().map(move |selection| {
2820 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2821
2822 let mut enclosing = None;
2823 while let Some(pair_state) = regions.get(i) {
2824 if pair_state.range.end.to_offset(buffer) < range.start {
2825 regions = ®ions[i + 1..];
2826 i = 0;
2827 } else if pair_state.range.start.to_offset(buffer) > range.end {
2828 break;
2829 } else {
2830 if pair_state.selection_id == selection.id {
2831 enclosing = Some(pair_state);
2832 }
2833 i += 1;
2834 }
2835 }
2836
2837 (selection.clone(), enclosing)
2838 })
2839 }
2840
2841 /// Remove any autoclose regions that no longer contain their selection.
2842 fn invalidate_autoclose_regions(
2843 &mut self,
2844 mut selections: &[Selection<Anchor>],
2845 buffer: &MultiBufferSnapshot,
2846 ) {
2847 self.autoclose_regions.retain(|state| {
2848 let mut i = 0;
2849 while let Some(selection) = selections.get(i) {
2850 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2851 selections = &selections[1..];
2852 continue;
2853 }
2854 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2855 break;
2856 }
2857 if selection.id == state.selection_id {
2858 return true;
2859 } else {
2860 i += 1;
2861 }
2862 }
2863 false
2864 });
2865 }
2866
2867 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2868 let offset = position.to_offset(buffer);
2869 let (word_range, kind) = buffer.surrounding_word(offset);
2870 if offset > word_range.start && kind == Some(CharKind::Word) {
2871 Some(
2872 buffer
2873 .text_for_range(word_range.start..offset)
2874 .collect::<String>(),
2875 )
2876 } else {
2877 None
2878 }
2879 }
2880
2881 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2882 self.refresh_inlay_hints(
2883 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2884 cx,
2885 );
2886 }
2887
2888 pub fn inlay_hints_enabled(&self) -> bool {
2889 self.inlay_hint_cache.enabled
2890 }
2891
2892 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2893 if self.project.is_none() || self.mode != EditorMode::Full {
2894 return;
2895 }
2896
2897 let reason_description = reason.description();
2898 let (invalidate_cache, required_languages) = match reason {
2899 InlayHintRefreshReason::Toggle(enabled) => {
2900 self.inlay_hint_cache.enabled = enabled;
2901 if enabled {
2902 (InvalidationStrategy::RefreshRequested, None)
2903 } else {
2904 self.inlay_hint_cache.clear();
2905 self.splice_inlay_hints(
2906 self.visible_inlay_hints(cx)
2907 .iter()
2908 .map(|inlay| inlay.id)
2909 .collect(),
2910 Vec::new(),
2911 cx,
2912 );
2913 return;
2914 }
2915 }
2916 InlayHintRefreshReason::SettingsChange(new_settings) => {
2917 match self.inlay_hint_cache.update_settings(
2918 &self.buffer,
2919 new_settings,
2920 self.visible_inlay_hints(cx),
2921 cx,
2922 ) {
2923 ControlFlow::Break(Some(InlaySplice {
2924 to_remove,
2925 to_insert,
2926 })) => {
2927 self.splice_inlay_hints(to_remove, to_insert, cx);
2928 return;
2929 }
2930 ControlFlow::Break(None) => return,
2931 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2932 }
2933 }
2934 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2935 if let Some(InlaySplice {
2936 to_remove,
2937 to_insert,
2938 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2939 {
2940 self.splice_inlay_hints(to_remove, to_insert, cx);
2941 }
2942 return;
2943 }
2944 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2945 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2946 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2947 }
2948 InlayHintRefreshReason::RefreshRequested => {
2949 (InvalidationStrategy::RefreshRequested, None)
2950 }
2951 };
2952
2953 if let Some(InlaySplice {
2954 to_remove,
2955 to_insert,
2956 }) = self.inlay_hint_cache.spawn_hint_refresh(
2957 reason_description,
2958 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
2959 invalidate_cache,
2960 cx,
2961 ) {
2962 self.splice_inlay_hints(to_remove, to_insert, cx);
2963 }
2964 }
2965
2966 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
2967 self.display_map
2968 .read(cx)
2969 .current_inlays()
2970 .filter(move |inlay| {
2971 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
2972 })
2973 .cloned()
2974 .collect()
2975 }
2976
2977 pub fn excerpts_for_inlay_hints_query(
2978 &self,
2979 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
2980 cx: &mut ViewContext<Editor>,
2981 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
2982 let Some(project) = self.project.as_ref() else {
2983 return HashMap::default();
2984 };
2985 let project = project.read(cx);
2986 let multi_buffer = self.buffer().read(cx);
2987 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
2988 let multi_buffer_visible_start = self
2989 .scroll_manager
2990 .anchor()
2991 .anchor
2992 .to_point(&multi_buffer_snapshot);
2993 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
2994 multi_buffer_visible_start
2995 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
2996 Bias::Left,
2997 );
2998 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
2999 multi_buffer
3000 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3001 .into_iter()
3002 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3003 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3004 let buffer = buffer_handle.read(cx);
3005 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3006 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3007 let worktree_entry = buffer_worktree
3008 .read(cx)
3009 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3010 if worktree_entry.is_ignored {
3011 return None;
3012 }
3013
3014 let language = buffer.language()?;
3015 if let Some(restrict_to_languages) = restrict_to_languages {
3016 if !restrict_to_languages.contains(language) {
3017 return None;
3018 }
3019 }
3020 Some((
3021 excerpt_id,
3022 (
3023 buffer_handle,
3024 buffer.version().clone(),
3025 excerpt_visible_range,
3026 ),
3027 ))
3028 })
3029 .collect()
3030 }
3031
3032 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3033 TextLayoutDetails {
3034 text_system: cx.text_system().clone(),
3035 editor_style: self.style.clone().unwrap(),
3036 rem_size: cx.rem_size(),
3037 }
3038 }
3039
3040 fn splice_inlay_hints(
3041 &self,
3042 to_remove: Vec<InlayId>,
3043 to_insert: Vec<Inlay>,
3044 cx: &mut ViewContext<Self>,
3045 ) {
3046 self.display_map.update(cx, |display_map, cx| {
3047 display_map.splice_inlays(to_remove, to_insert, cx);
3048 });
3049 cx.notify();
3050 }
3051
3052 fn trigger_on_type_formatting(
3053 &self,
3054 input: String,
3055 cx: &mut ViewContext<Self>,
3056 ) -> Option<Task<Result<()>>> {
3057 if input.len() != 1 {
3058 return None;
3059 }
3060
3061 let project = self.project.as_ref()?;
3062 let position = self.selections.newest_anchor().head();
3063 let (buffer, buffer_position) = self
3064 .buffer
3065 .read(cx)
3066 .text_anchor_for_position(position.clone(), cx)?;
3067
3068 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3069 // hence we do LSP request & edit on host side only — add formats to host's history.
3070 let push_to_lsp_host_history = true;
3071 // If this is not the host, append its history with new edits.
3072 let push_to_client_history = project.read(cx).is_remote();
3073
3074 let on_type_formatting = project.update(cx, |project, cx| {
3075 project.on_type_format(
3076 buffer.clone(),
3077 buffer_position,
3078 input,
3079 push_to_lsp_host_history,
3080 cx,
3081 )
3082 });
3083 Some(cx.spawn(|editor, mut cx| async move {
3084 if let Some(transaction) = on_type_formatting.await? {
3085 if push_to_client_history {
3086 buffer
3087 .update(&mut cx, |buffer, _| {
3088 buffer.push_transaction(transaction, Instant::now());
3089 })
3090 .ok();
3091 }
3092 editor.update(&mut cx, |editor, cx| {
3093 editor.refresh_document_highlights(cx);
3094 })?;
3095 }
3096 Ok(())
3097 }))
3098 }
3099
3100 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3101 if self.pending_rename.is_some() {
3102 return;
3103 }
3104
3105 let Some(provider) = self.completion_provider.as_ref() else {
3106 return;
3107 };
3108
3109 let position = self.selections.newest_anchor().head();
3110 let (buffer, buffer_position) = if let Some(output) = self
3111 .buffer
3112 .read(cx)
3113 .text_anchor_for_position(position.clone(), cx)
3114 {
3115 output
3116 } else {
3117 return;
3118 };
3119
3120 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3121 let completions = provider.completions(&buffer, buffer_position, cx);
3122
3123 let id = post_inc(&mut self.next_completion_id);
3124 let task = cx.spawn(|this, mut cx| {
3125 async move {
3126 let completions = completions.await.log_err();
3127 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3128 let mut menu = CompletionsMenu {
3129 id,
3130 initial_position: position,
3131 match_candidates: completions
3132 .iter()
3133 .enumerate()
3134 .map(|(id, completion)| {
3135 StringMatchCandidate::new(
3136 id,
3137 completion.label.text[completion.label.filter_range.clone()]
3138 .into(),
3139 )
3140 })
3141 .collect(),
3142 buffer,
3143 completions: Arc::new(RwLock::new(completions.into())),
3144 matches: Vec::new().into(),
3145 selected_item: 0,
3146 scroll_handle: UniformListScrollHandle::new(),
3147 };
3148 menu.filter(query.as_deref(), cx.background_executor().clone())
3149 .await;
3150
3151 if menu.matches.is_empty() {
3152 (None, None)
3153 } else {
3154 let pre_resolve_task = this
3155 .update(&mut cx, |editor, cx| {
3156 menu.pre_resolve_completion_documentation(editor, cx)
3157 })
3158 .ok()
3159 .flatten();
3160 (Some(menu), pre_resolve_task)
3161 }
3162 } else {
3163 (None, None)
3164 };
3165
3166 this.update(&mut cx, |this, cx| {
3167 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3168
3169 let mut context_menu = this.context_menu.write();
3170 match context_menu.as_ref() {
3171 None => {}
3172
3173 Some(ContextMenu::Completions(prev_menu)) => {
3174 if prev_menu.id > id {
3175 return;
3176 }
3177 }
3178
3179 _ => return,
3180 }
3181
3182 if this.focus_handle.is_focused(cx) && menu.is_some() {
3183 let menu = menu.unwrap();
3184 *context_menu = Some(ContextMenu::Completions(menu));
3185 drop(context_menu);
3186 this.discard_copilot_suggestion(cx);
3187 cx.notify();
3188 } else if this.completion_tasks.len() <= 1 {
3189 // If there are no more completion tasks and the last menu was
3190 // empty, we should hide it. If it was already hidden, we should
3191 // also show the copilot suggestion when available.
3192 drop(context_menu);
3193 if this.hide_context_menu(cx).is_none() {
3194 this.update_visible_copilot_suggestion(cx);
3195 }
3196 }
3197 })?;
3198
3199 if let Some(pre_resolve_task) = pre_resolve_task {
3200 pre_resolve_task.await;
3201 }
3202
3203 Ok::<_, anyhow::Error>(())
3204 }
3205 .log_err()
3206 });
3207
3208 self.completion_tasks.push((id, task));
3209 }
3210
3211 pub fn confirm_completion(
3212 &mut self,
3213 action: &ConfirmCompletion,
3214 cx: &mut ViewContext<Self>,
3215 ) -> Option<Task<Result<()>>> {
3216 use language::ToOffset as _;
3217
3218 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3219 menu
3220 } else {
3221 return None;
3222 };
3223
3224 let mat = completions_menu
3225 .matches
3226 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3227 let buffer_handle = completions_menu.buffer;
3228 let completions = completions_menu.completions.read();
3229 let completion = completions.get(mat.candidate_id)?;
3230 cx.stop_propagation();
3231
3232 let snippet;
3233 let text;
3234 if completion.is_snippet() {
3235 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3236 text = snippet.as_ref().unwrap().text.clone();
3237 } else {
3238 snippet = None;
3239 text = completion.new_text.clone();
3240 };
3241 let selections = self.selections.all::<usize>(cx);
3242 let buffer = buffer_handle.read(cx);
3243 let old_range = completion.old_range.to_offset(buffer);
3244 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3245
3246 let newest_selection = self.selections.newest_anchor();
3247 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3248 return None;
3249 }
3250
3251 let lookbehind = newest_selection
3252 .start
3253 .text_anchor
3254 .to_offset(buffer)
3255 .saturating_sub(old_range.start);
3256 let lookahead = old_range
3257 .end
3258 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3259 let mut common_prefix_len = old_text
3260 .bytes()
3261 .zip(text.bytes())
3262 .take_while(|(a, b)| a == b)
3263 .count();
3264
3265 let snapshot = self.buffer.read(cx).snapshot(cx);
3266 let mut range_to_replace: Option<Range<isize>> = None;
3267 let mut ranges = Vec::new();
3268 for selection in &selections {
3269 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3270 let start = selection.start.saturating_sub(lookbehind);
3271 let end = selection.end + lookahead;
3272 if selection.id == newest_selection.id {
3273 range_to_replace = Some(
3274 ((start + common_prefix_len) as isize - selection.start as isize)
3275 ..(end as isize - selection.start as isize),
3276 );
3277 }
3278 ranges.push(start + common_prefix_len..end);
3279 } else {
3280 common_prefix_len = 0;
3281 ranges.clear();
3282 ranges.extend(selections.iter().map(|s| {
3283 if s.id == newest_selection.id {
3284 range_to_replace = Some(
3285 old_range.start.to_offset_utf16(&snapshot).0 as isize
3286 - selection.start as isize
3287 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3288 - selection.start as isize,
3289 );
3290 old_range.clone()
3291 } else {
3292 s.start..s.end
3293 }
3294 }));
3295 break;
3296 }
3297 }
3298 let text = &text[common_prefix_len..];
3299
3300 cx.emit(EditorEvent::InputHandled {
3301 utf16_range_to_replace: range_to_replace,
3302 text: text.into(),
3303 });
3304
3305 self.transact(cx, |this, cx| {
3306 if let Some(mut snippet) = snippet {
3307 snippet.text = text.to_string();
3308 for tabstop in snippet.tabstops.iter_mut().flatten() {
3309 tabstop.start -= common_prefix_len as isize;
3310 tabstop.end -= common_prefix_len as isize;
3311 }
3312
3313 this.insert_snippet(&ranges, snippet, cx).log_err();
3314 } else {
3315 this.buffer.update(cx, |buffer, cx| {
3316 buffer.edit(
3317 ranges.iter().map(|range| (range.clone(), text)),
3318 this.autoindent_mode.clone(),
3319 cx,
3320 );
3321 });
3322 }
3323
3324 this.refresh_copilot_suggestions(true, cx);
3325 });
3326
3327 let provider = self.completion_provider.as_ref()?;
3328 let apply_edits = provider.apply_additional_edits_for_completion(
3329 buffer_handle,
3330 completion.clone(),
3331 true,
3332 cx,
3333 );
3334 Some(cx.foreground_executor().spawn(async move {
3335 apply_edits.await?;
3336 Ok(())
3337 }))
3338 }
3339
3340 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3341 let mut context_menu = self.context_menu.write();
3342 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3343 *context_menu = None;
3344 cx.notify();
3345 return;
3346 }
3347 drop(context_menu);
3348
3349 let deployed_from_indicator = action.deployed_from_indicator;
3350 let mut task = self.code_actions_task.take();
3351 cx.spawn(|this, mut cx| async move {
3352 while let Some(prev_task) = task {
3353 prev_task.await;
3354 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3355 }
3356
3357 this.update(&mut cx, |this, cx| {
3358 if this.focus_handle.is_focused(cx) {
3359 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3360 this.completion_tasks.clear();
3361 this.discard_copilot_suggestion(cx);
3362 *this.context_menu.write() =
3363 Some(ContextMenu::CodeActions(CodeActionsMenu {
3364 buffer,
3365 actions,
3366 selected_item: Default::default(),
3367 scroll_handle: UniformListScrollHandle::default(),
3368 deployed_from_indicator,
3369 }));
3370 cx.notify();
3371 }
3372 }
3373 })?;
3374
3375 Ok::<_, anyhow::Error>(())
3376 })
3377 .detach_and_log_err(cx);
3378 }
3379
3380 pub fn confirm_code_action(
3381 &mut self,
3382 action: &ConfirmCodeAction,
3383 cx: &mut ViewContext<Self>,
3384 ) -> Option<Task<Result<()>>> {
3385 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3386 menu
3387 } else {
3388 return None;
3389 };
3390 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3391 let action = actions_menu.actions.get(action_ix)?.clone();
3392 let title = action.lsp_action.title.clone();
3393 let buffer = actions_menu.buffer;
3394 let workspace = self.workspace()?;
3395
3396 let apply_code_actions = workspace
3397 .read(cx)
3398 .project()
3399 .clone()
3400 .update(cx, |project, cx| {
3401 project.apply_code_action(buffer, action, true, cx)
3402 });
3403 let workspace = workspace.downgrade();
3404 Some(cx.spawn(|editor, cx| async move {
3405 let project_transaction = apply_code_actions.await?;
3406 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3407 }))
3408 }
3409
3410 async fn open_project_transaction(
3411 this: &WeakView<Editor>,
3412 workspace: WeakView<Workspace>,
3413 transaction: ProjectTransaction,
3414 title: String,
3415 mut cx: AsyncWindowContext,
3416 ) -> Result<()> {
3417 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3418
3419 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3420 cx.update(|cx| {
3421 entries.sort_unstable_by_key(|(buffer, _)| {
3422 buffer.read(cx).file().map(|f| f.path().clone())
3423 });
3424 })?;
3425
3426 // If the project transaction's edits are all contained within this editor, then
3427 // avoid opening a new editor to display them.
3428
3429 if let Some((buffer, transaction)) = entries.first() {
3430 if entries.len() == 1 {
3431 let excerpt = this.update(&mut cx, |editor, cx| {
3432 editor
3433 .buffer()
3434 .read(cx)
3435 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3436 })?;
3437 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3438 if excerpted_buffer == *buffer {
3439 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3440 let excerpt_range = excerpt_range.to_offset(buffer);
3441 buffer
3442 .edited_ranges_for_transaction::<usize>(transaction)
3443 .all(|range| {
3444 excerpt_range.start <= range.start
3445 && excerpt_range.end >= range.end
3446 })
3447 })?;
3448
3449 if all_edits_within_excerpt {
3450 return Ok(());
3451 }
3452 }
3453 }
3454 }
3455 } else {
3456 return Ok(());
3457 }
3458
3459 let mut ranges_to_highlight = Vec::new();
3460 let excerpt_buffer = cx.new_model(|cx| {
3461 let mut multibuffer =
3462 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3463 for (buffer_handle, transaction) in &entries {
3464 let buffer = buffer_handle.read(cx);
3465 ranges_to_highlight.extend(
3466 multibuffer.push_excerpts_with_context_lines(
3467 buffer_handle.clone(),
3468 buffer
3469 .edited_ranges_for_transaction::<usize>(transaction)
3470 .collect(),
3471 1,
3472 cx,
3473 ),
3474 );
3475 }
3476 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3477 multibuffer
3478 })?;
3479
3480 workspace.update(&mut cx, |workspace, cx| {
3481 let project = workspace.project().clone();
3482 let editor =
3483 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3484 workspace.add_item(Box::new(editor.clone()), cx);
3485 editor.update(cx, |editor, cx| {
3486 editor.highlight_background::<Self>(
3487 ranges_to_highlight,
3488 |theme| theme.editor_highlighted_line_background,
3489 cx,
3490 );
3491 });
3492 })?;
3493
3494 Ok(())
3495 }
3496
3497 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3498 let project = self.project.clone()?;
3499 let buffer = self.buffer.read(cx);
3500 let newest_selection = self.selections.newest_anchor().clone();
3501 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3502 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3503 if start_buffer != end_buffer {
3504 return None;
3505 }
3506
3507 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3508 cx.background_executor()
3509 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3510 .await;
3511
3512 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3513 project.code_actions(&start_buffer, start..end, cx)
3514 }) {
3515 code_actions.await.log_err()
3516 } else {
3517 None
3518 };
3519
3520 this.update(&mut cx, |this, cx| {
3521 this.available_code_actions = actions.and_then(|actions| {
3522 if actions.is_empty() {
3523 None
3524 } else {
3525 Some((start_buffer, actions.into()))
3526 }
3527 });
3528 cx.notify();
3529 })
3530 .log_err();
3531 }));
3532 None
3533 }
3534
3535 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3536 if self.pending_rename.is_some() {
3537 return None;
3538 }
3539
3540 let project = self.project.clone()?;
3541 let buffer = self.buffer.read(cx);
3542 let newest_selection = self.selections.newest_anchor().clone();
3543 let cursor_position = newest_selection.head();
3544 let (cursor_buffer, cursor_buffer_position) =
3545 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3546 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3547 if cursor_buffer != tail_buffer {
3548 return None;
3549 }
3550
3551 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3552 cx.background_executor()
3553 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3554 .await;
3555
3556 let highlights = if let Some(highlights) = project
3557 .update(&mut cx, |project, cx| {
3558 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3559 })
3560 .log_err()
3561 {
3562 highlights.await.log_err()
3563 } else {
3564 None
3565 };
3566
3567 if let Some(highlights) = highlights {
3568 this.update(&mut cx, |this, cx| {
3569 if this.pending_rename.is_some() {
3570 return;
3571 }
3572
3573 let buffer_id = cursor_position.buffer_id;
3574 let buffer = this.buffer.read(cx);
3575 if !buffer
3576 .text_anchor_for_position(cursor_position, cx)
3577 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3578 {
3579 return;
3580 }
3581
3582 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3583 let mut write_ranges = Vec::new();
3584 let mut read_ranges = Vec::new();
3585 for highlight in highlights {
3586 for (excerpt_id, excerpt_range) in
3587 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3588 {
3589 let start = highlight
3590 .range
3591 .start
3592 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3593 let end = highlight
3594 .range
3595 .end
3596 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3597 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3598 continue;
3599 }
3600
3601 let range = Anchor {
3602 buffer_id,
3603 excerpt_id: excerpt_id.clone(),
3604 text_anchor: start,
3605 }..Anchor {
3606 buffer_id,
3607 excerpt_id,
3608 text_anchor: end,
3609 };
3610 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3611 write_ranges.push(range);
3612 } else {
3613 read_ranges.push(range);
3614 }
3615 }
3616 }
3617
3618 this.highlight_background::<DocumentHighlightRead>(
3619 read_ranges,
3620 |theme| theme.editor_document_highlight_read_background,
3621 cx,
3622 );
3623 this.highlight_background::<DocumentHighlightWrite>(
3624 write_ranges,
3625 |theme| theme.editor_document_highlight_write_background,
3626 cx,
3627 );
3628 cx.notify();
3629 })
3630 .log_err();
3631 }
3632 }));
3633 None
3634 }
3635
3636 fn refresh_copilot_suggestions(
3637 &mut self,
3638 debounce: bool,
3639 cx: &mut ViewContext<Self>,
3640 ) -> Option<()> {
3641 let copilot = Copilot::global(cx)?;
3642 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3643 self.clear_copilot_suggestions(cx);
3644 return None;
3645 }
3646 self.update_visible_copilot_suggestion(cx);
3647
3648 let snapshot = self.buffer.read(cx).snapshot(cx);
3649 let cursor = self.selections.newest_anchor().head();
3650 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3651 self.clear_copilot_suggestions(cx);
3652 return None;
3653 }
3654
3655 let (buffer, buffer_position) =
3656 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3657 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3658 if debounce {
3659 cx.background_executor()
3660 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3661 .await;
3662 }
3663
3664 let completions = copilot
3665 .update(&mut cx, |copilot, cx| {
3666 copilot.completions(&buffer, buffer_position, cx)
3667 })
3668 .log_err()
3669 .unwrap_or(Task::ready(Ok(Vec::new())))
3670 .await
3671 .log_err()
3672 .into_iter()
3673 .flatten()
3674 .collect_vec();
3675
3676 this.update(&mut cx, |this, cx| {
3677 if !completions.is_empty() {
3678 this.copilot_state.cycled = false;
3679 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3680 this.copilot_state.completions.clear();
3681 this.copilot_state.active_completion_index = 0;
3682 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3683 for completion in completions {
3684 this.copilot_state.push_completion(completion);
3685 }
3686 this.update_visible_copilot_suggestion(cx);
3687 }
3688 })
3689 .log_err()?;
3690 Some(())
3691 });
3692
3693 Some(())
3694 }
3695
3696 fn cycle_copilot_suggestions(
3697 &mut self,
3698 direction: Direction,
3699 cx: &mut ViewContext<Self>,
3700 ) -> Option<()> {
3701 let copilot = Copilot::global(cx)?;
3702 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3703 return None;
3704 }
3705
3706 if self.copilot_state.cycled {
3707 self.copilot_state.cycle_completions(direction);
3708 self.update_visible_copilot_suggestion(cx);
3709 } else {
3710 let cursor = self.selections.newest_anchor().head();
3711 let (buffer, buffer_position) =
3712 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3713 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3714 let completions = copilot
3715 .update(&mut cx, |copilot, cx| {
3716 copilot.completions_cycling(&buffer, buffer_position, cx)
3717 })
3718 .log_err()?
3719 .await;
3720
3721 this.update(&mut cx, |this, cx| {
3722 this.copilot_state.cycled = true;
3723 for completion in completions.log_err().into_iter().flatten() {
3724 this.copilot_state.push_completion(completion);
3725 }
3726 this.copilot_state.cycle_completions(direction);
3727 this.update_visible_copilot_suggestion(cx);
3728 })
3729 .log_err()?;
3730
3731 Some(())
3732 });
3733 }
3734
3735 Some(())
3736 }
3737
3738 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3739 if !self.has_active_copilot_suggestion(cx) {
3740 self.refresh_copilot_suggestions(false, cx);
3741 return;
3742 }
3743
3744 self.update_visible_copilot_suggestion(cx);
3745 }
3746
3747 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3748 self.show_cursor_names(cx);
3749 }
3750
3751 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3752 self.show_cursor_names = true;
3753 cx.notify();
3754 cx.spawn(|this, mut cx| async move {
3755 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3756 this.update(&mut cx, |this, cx| {
3757 this.show_cursor_names = false;
3758 cx.notify()
3759 })
3760 .ok()
3761 })
3762 .detach();
3763 }
3764
3765 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3766 if self.has_active_copilot_suggestion(cx) {
3767 self.cycle_copilot_suggestions(Direction::Next, cx);
3768 } else {
3769 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3770 if is_copilot_disabled {
3771 cx.propagate();
3772 }
3773 }
3774 }
3775
3776 fn previous_copilot_suggestion(
3777 &mut self,
3778 _: &copilot::PreviousSuggestion,
3779 cx: &mut ViewContext<Self>,
3780 ) {
3781 if self.has_active_copilot_suggestion(cx) {
3782 self.cycle_copilot_suggestions(Direction::Prev, cx);
3783 } else {
3784 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3785 if is_copilot_disabled {
3786 cx.propagate();
3787 }
3788 }
3789 }
3790
3791 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3792 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3793 if let Some((copilot, completion)) =
3794 Copilot::global(cx).zip(self.copilot_state.active_completion())
3795 {
3796 copilot
3797 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3798 .detach_and_log_err(cx);
3799
3800 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3801 }
3802 cx.emit(EditorEvent::InputHandled {
3803 utf16_range_to_replace: None,
3804 text: suggestion.text.to_string().into(),
3805 });
3806 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3807 cx.notify();
3808 true
3809 } else {
3810 false
3811 }
3812 }
3813
3814 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3815 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3816 if let Some(copilot) = Copilot::global(cx) {
3817 copilot
3818 .update(cx, |copilot, cx| {
3819 copilot.discard_completions(&self.copilot_state.completions, cx)
3820 })
3821 .detach_and_log_err(cx);
3822
3823 self.report_copilot_event(None, false, cx)
3824 }
3825
3826 self.display_map.update(cx, |map, cx| {
3827 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3828 });
3829 cx.notify();
3830 true
3831 } else {
3832 false
3833 }
3834 }
3835
3836 fn is_copilot_enabled_at(
3837 &self,
3838 location: Anchor,
3839 snapshot: &MultiBufferSnapshot,
3840 cx: &mut ViewContext<Self>,
3841 ) -> bool {
3842 let file = snapshot.file_at(location);
3843 let language = snapshot.language_at(location);
3844 let settings = all_language_settings(file, cx);
3845 self.show_copilot_suggestions
3846 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3847 }
3848
3849 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3850 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3851 let buffer = self.buffer.read(cx).read(cx);
3852 suggestion.position.is_valid(&buffer)
3853 } else {
3854 false
3855 }
3856 }
3857
3858 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3859 let suggestion = self.copilot_state.suggestion.take()?;
3860 self.display_map.update(cx, |map, cx| {
3861 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3862 });
3863 let buffer = self.buffer.read(cx).read(cx);
3864
3865 if suggestion.position.is_valid(&buffer) {
3866 Some(suggestion)
3867 } else {
3868 None
3869 }
3870 }
3871
3872 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3873 let snapshot = self.buffer.read(cx).snapshot(cx);
3874 let selection = self.selections.newest_anchor();
3875 let cursor = selection.head();
3876
3877 if self.context_menu.read().is_some()
3878 || !self.completion_tasks.is_empty()
3879 || selection.start != selection.end
3880 {
3881 self.discard_copilot_suggestion(cx);
3882 } else if let Some(text) = self
3883 .copilot_state
3884 .text_for_active_completion(cursor, &snapshot)
3885 {
3886 let text = Rope::from(text);
3887 let mut to_remove = Vec::new();
3888 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3889 to_remove.push(suggestion.id);
3890 }
3891
3892 let suggestion_inlay =
3893 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3894 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3895 self.display_map.update(cx, move |map, cx| {
3896 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3897 });
3898 cx.notify();
3899 } else {
3900 self.discard_copilot_suggestion(cx);
3901 }
3902 }
3903
3904 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3905 self.copilot_state = Default::default();
3906 self.discard_copilot_suggestion(cx);
3907 }
3908
3909 pub fn render_code_actions_indicator(
3910 &self,
3911 _style: &EditorStyle,
3912 is_active: bool,
3913 cx: &mut ViewContext<Self>,
3914 ) -> Option<IconButton> {
3915 if self.available_code_actions.is_some() {
3916 Some(
3917 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3918 .icon_size(IconSize::Small)
3919 .icon_color(Color::Muted)
3920 .selected(is_active)
3921 .on_click(cx.listener(|editor, _e, cx| {
3922 editor.toggle_code_actions(
3923 &ToggleCodeActions {
3924 deployed_from_indicator: true,
3925 },
3926 cx,
3927 );
3928 })),
3929 )
3930 } else {
3931 None
3932 }
3933 }
3934
3935 pub fn render_fold_indicators(
3936 &self,
3937 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
3938 _style: &EditorStyle,
3939 gutter_hovered: bool,
3940 _line_height: Pixels,
3941 _gutter_margin: Pixels,
3942 editor_view: View<Editor>,
3943 ) -> Vec<Option<IconButton>> {
3944 fold_data
3945 .iter()
3946 .enumerate()
3947 .map(|(ix, fold_data)| {
3948 fold_data
3949 .map(|(fold_status, buffer_row, active)| {
3950 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
3951 IconButton::new(ix as usize, ui::IconName::ChevronDown)
3952 .on_click({
3953 let view = editor_view.clone();
3954 move |_e, cx| {
3955 view.update(cx, |editor, cx| match fold_status {
3956 FoldStatus::Folded => {
3957 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
3958 }
3959 FoldStatus::Foldable => {
3960 editor.fold_at(&FoldAt { buffer_row }, cx);
3961 }
3962 })
3963 }
3964 })
3965 .icon_color(ui::Color::Muted)
3966 .icon_size(ui::IconSize::Small)
3967 .selected(fold_status == FoldStatus::Folded)
3968 .selected_icon(ui::IconName::ChevronRight)
3969 .size(ui::ButtonSize::None)
3970 })
3971 })
3972 .flatten()
3973 })
3974 .collect()
3975 }
3976
3977 pub fn context_menu_visible(&self) -> bool {
3978 self.context_menu
3979 .read()
3980 .as_ref()
3981 .map_or(false, |menu| menu.visible())
3982 }
3983
3984 pub fn render_context_menu(
3985 &self,
3986 cursor_position: DisplayPoint,
3987 style: &EditorStyle,
3988 max_height: Pixels,
3989 cx: &mut ViewContext<Editor>,
3990 ) -> Option<(DisplayPoint, AnyElement)> {
3991 self.context_menu.read().as_ref().map(|menu| {
3992 menu.render(
3993 cursor_position,
3994 style,
3995 max_height,
3996 self.workspace.as_ref().map(|(w, _)| w.clone()),
3997 cx,
3998 )
3999 })
4000 }
4001
4002 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4003 cx.notify();
4004 self.completion_tasks.clear();
4005 let context_menu = self.context_menu.write().take();
4006 if context_menu.is_some() {
4007 self.update_visible_copilot_suggestion(cx);
4008 }
4009 context_menu
4010 }
4011
4012 pub fn insert_snippet(
4013 &mut self,
4014 insertion_ranges: &[Range<usize>],
4015 snippet: Snippet,
4016 cx: &mut ViewContext<Self>,
4017 ) -> Result<()> {
4018 let tabstops = self.buffer.update(cx, |buffer, cx| {
4019 let snippet_text: Arc<str> = snippet.text.clone().into();
4020 buffer.edit(
4021 insertion_ranges
4022 .iter()
4023 .cloned()
4024 .map(|range| (range, snippet_text.clone())),
4025 Some(AutoindentMode::EachLine),
4026 cx,
4027 );
4028
4029 let snapshot = &*buffer.read(cx);
4030 let snippet = &snippet;
4031 snippet
4032 .tabstops
4033 .iter()
4034 .map(|tabstop| {
4035 let mut tabstop_ranges = tabstop
4036 .iter()
4037 .flat_map(|tabstop_range| {
4038 let mut delta = 0_isize;
4039 insertion_ranges.iter().map(move |insertion_range| {
4040 let insertion_start = insertion_range.start as isize + delta;
4041 delta +=
4042 snippet.text.len() as isize - insertion_range.len() as isize;
4043
4044 let start = snapshot.anchor_before(
4045 (insertion_start + tabstop_range.start) as usize,
4046 );
4047 let end = snapshot
4048 .anchor_after((insertion_start + tabstop_range.end) as usize);
4049 start..end
4050 })
4051 })
4052 .collect::<Vec<_>>();
4053 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4054 tabstop_ranges
4055 })
4056 .collect::<Vec<_>>()
4057 });
4058
4059 if let Some(tabstop) = tabstops.first() {
4060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4061 s.select_ranges(tabstop.iter().cloned());
4062 });
4063 self.snippet_stack.push(SnippetState {
4064 active_index: 0,
4065 ranges: tabstops,
4066 });
4067 }
4068
4069 Ok(())
4070 }
4071
4072 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4073 self.move_to_snippet_tabstop(Bias::Right, cx)
4074 }
4075
4076 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4077 self.move_to_snippet_tabstop(Bias::Left, cx)
4078 }
4079
4080 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4081 if let Some(mut snippet) = self.snippet_stack.pop() {
4082 match bias {
4083 Bias::Left => {
4084 if snippet.active_index > 0 {
4085 snippet.active_index -= 1;
4086 } else {
4087 self.snippet_stack.push(snippet);
4088 return false;
4089 }
4090 }
4091 Bias::Right => {
4092 if snippet.active_index + 1 < snippet.ranges.len() {
4093 snippet.active_index += 1;
4094 } else {
4095 self.snippet_stack.push(snippet);
4096 return false;
4097 }
4098 }
4099 }
4100 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4101 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4102 s.select_anchor_ranges(current_ranges.iter().cloned())
4103 });
4104 // If snippet state is not at the last tabstop, push it back on the stack
4105 if snippet.active_index + 1 < snippet.ranges.len() {
4106 self.snippet_stack.push(snippet);
4107 }
4108 return true;
4109 }
4110 }
4111
4112 false
4113 }
4114
4115 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4116 self.transact(cx, |this, cx| {
4117 this.select_all(&SelectAll, cx);
4118 this.insert("", cx);
4119 });
4120 }
4121
4122 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4123 self.transact(cx, |this, cx| {
4124 this.select_autoclose_pair(cx);
4125 let mut selections = this.selections.all::<Point>(cx);
4126 if !this.selections.line_mode {
4127 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4128 for selection in &mut selections {
4129 if selection.is_empty() {
4130 let old_head = selection.head();
4131 let mut new_head =
4132 movement::left(&display_map, old_head.to_display_point(&display_map))
4133 .to_point(&display_map);
4134 if let Some((buffer, line_buffer_range)) = display_map
4135 .buffer_snapshot
4136 .buffer_line_for_row(old_head.row)
4137 {
4138 let indent_size =
4139 buffer.indent_size_for_line(line_buffer_range.start.row);
4140 let indent_len = match indent_size.kind {
4141 IndentKind::Space => {
4142 buffer.settings_at(line_buffer_range.start, cx).tab_size
4143 }
4144 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4145 };
4146 if old_head.column <= indent_size.len && old_head.column > 0 {
4147 let indent_len = indent_len.get();
4148 new_head = cmp::min(
4149 new_head,
4150 Point::new(
4151 old_head.row,
4152 ((old_head.column - 1) / indent_len) * indent_len,
4153 ),
4154 );
4155 }
4156 }
4157
4158 selection.set_head(new_head, SelectionGoal::None);
4159 }
4160 }
4161 }
4162
4163 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4164 this.insert("", cx);
4165 this.refresh_copilot_suggestions(true, cx);
4166 });
4167 }
4168
4169 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4170 self.transact(cx, |this, cx| {
4171 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4172 let line_mode = s.line_mode;
4173 s.move_with(|map, selection| {
4174 if selection.is_empty() && !line_mode {
4175 let cursor = movement::right(map, selection.head());
4176 selection.end = cursor;
4177 selection.reversed = true;
4178 selection.goal = SelectionGoal::None;
4179 }
4180 })
4181 });
4182 this.insert("", cx);
4183 this.refresh_copilot_suggestions(true, cx);
4184 });
4185 }
4186
4187 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4188 if self.move_to_prev_snippet_tabstop(cx) {
4189 return;
4190 }
4191
4192 self.outdent(&Outdent, cx);
4193 }
4194
4195 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4196 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4197 return;
4198 }
4199
4200 let mut selections = self.selections.all_adjusted(cx);
4201 let buffer = self.buffer.read(cx);
4202 let snapshot = buffer.snapshot(cx);
4203 let rows_iter = selections.iter().map(|s| s.head().row);
4204 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4205
4206 let mut edits = Vec::new();
4207 let mut prev_edited_row = 0;
4208 let mut row_delta = 0;
4209 for selection in &mut selections {
4210 if selection.start.row != prev_edited_row {
4211 row_delta = 0;
4212 }
4213 prev_edited_row = selection.end.row;
4214
4215 // If the selection is non-empty, then increase the indentation of the selected lines.
4216 if !selection.is_empty() {
4217 row_delta =
4218 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4219 continue;
4220 }
4221
4222 // If the selection is empty and the cursor is in the leading whitespace before the
4223 // suggested indentation, then auto-indent the line.
4224 let cursor = selection.head();
4225 let current_indent = snapshot.indent_size_for_line(cursor.row);
4226 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4227 if cursor.column < suggested_indent.len
4228 && cursor.column <= current_indent.len
4229 && current_indent.len <= suggested_indent.len
4230 {
4231 selection.start = Point::new(cursor.row, suggested_indent.len);
4232 selection.end = selection.start;
4233 if row_delta == 0 {
4234 edits.extend(Buffer::edit_for_indent_size_adjustment(
4235 cursor.row,
4236 current_indent,
4237 suggested_indent,
4238 ));
4239 row_delta = suggested_indent.len - current_indent.len;
4240 }
4241 continue;
4242 }
4243 }
4244
4245 // Accept copilot suggestion if there is only one selection and the cursor is not
4246 // in the leading whitespace.
4247 if self.selections.count() == 1
4248 && cursor.column >= current_indent.len
4249 && self.has_active_copilot_suggestion(cx)
4250 {
4251 self.accept_copilot_suggestion(cx);
4252 return;
4253 }
4254
4255 // Otherwise, insert a hard or soft tab.
4256 let settings = buffer.settings_at(cursor, cx);
4257 let tab_size = if settings.hard_tabs {
4258 IndentSize::tab()
4259 } else {
4260 let tab_size = settings.tab_size.get();
4261 let char_column = snapshot
4262 .text_for_range(Point::new(cursor.row, 0)..cursor)
4263 .flat_map(str::chars)
4264 .count()
4265 + row_delta as usize;
4266 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4267 IndentSize::spaces(chars_to_next_tab_stop)
4268 };
4269 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4270 selection.end = selection.start;
4271 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4272 row_delta += tab_size.len;
4273 }
4274
4275 self.transact(cx, |this, cx| {
4276 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4277 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4278 this.refresh_copilot_suggestions(true, cx);
4279 });
4280 }
4281
4282 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4283 let mut selections = self.selections.all::<Point>(cx);
4284 let mut prev_edited_row = 0;
4285 let mut row_delta = 0;
4286 let mut edits = Vec::new();
4287 let buffer = self.buffer.read(cx);
4288 let snapshot = buffer.snapshot(cx);
4289 for selection in &mut selections {
4290 if selection.start.row != prev_edited_row {
4291 row_delta = 0;
4292 }
4293 prev_edited_row = selection.end.row;
4294
4295 row_delta =
4296 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4297 }
4298
4299 self.transact(cx, |this, cx| {
4300 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4301 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4302 });
4303 }
4304
4305 fn indent_selection(
4306 buffer: &MultiBuffer,
4307 snapshot: &MultiBufferSnapshot,
4308 selection: &mut Selection<Point>,
4309 edits: &mut Vec<(Range<Point>, String)>,
4310 delta_for_start_row: u32,
4311 cx: &AppContext,
4312 ) -> u32 {
4313 let settings = buffer.settings_at(selection.start, cx);
4314 let tab_size = settings.tab_size.get();
4315 let indent_kind = if settings.hard_tabs {
4316 IndentKind::Tab
4317 } else {
4318 IndentKind::Space
4319 };
4320 let mut start_row = selection.start.row;
4321 let mut end_row = selection.end.row + 1;
4322
4323 // If a selection ends at the beginning of a line, don't indent
4324 // that last line.
4325 if selection.end.column == 0 {
4326 end_row -= 1;
4327 }
4328
4329 // Avoid re-indenting a row that has already been indented by a
4330 // previous selection, but still update this selection's column
4331 // to reflect that indentation.
4332 if delta_for_start_row > 0 {
4333 start_row += 1;
4334 selection.start.column += delta_for_start_row;
4335 if selection.end.row == selection.start.row {
4336 selection.end.column += delta_for_start_row;
4337 }
4338 }
4339
4340 let mut delta_for_end_row = 0;
4341 for row in start_row..end_row {
4342 let current_indent = snapshot.indent_size_for_line(row);
4343 let indent_delta = match (current_indent.kind, indent_kind) {
4344 (IndentKind::Space, IndentKind::Space) => {
4345 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4346 IndentSize::spaces(columns_to_next_tab_stop)
4347 }
4348 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4349 (_, IndentKind::Tab) => IndentSize::tab(),
4350 };
4351
4352 let row_start = Point::new(row, 0);
4353 edits.push((
4354 row_start..row_start,
4355 indent_delta.chars().collect::<String>(),
4356 ));
4357
4358 // Update this selection's endpoints to reflect the indentation.
4359 if row == selection.start.row {
4360 selection.start.column += indent_delta.len;
4361 }
4362 if row == selection.end.row {
4363 selection.end.column += indent_delta.len;
4364 delta_for_end_row = indent_delta.len;
4365 }
4366 }
4367
4368 if selection.start.row == selection.end.row {
4369 delta_for_start_row + delta_for_end_row
4370 } else {
4371 delta_for_end_row
4372 }
4373 }
4374
4375 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4376 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4377 let selections = self.selections.all::<Point>(cx);
4378 let mut deletion_ranges = Vec::new();
4379 let mut last_outdent = None;
4380 {
4381 let buffer = self.buffer.read(cx);
4382 let snapshot = buffer.snapshot(cx);
4383 for selection in &selections {
4384 let settings = buffer.settings_at(selection.start, cx);
4385 let tab_size = settings.tab_size.get();
4386 let mut rows = selection.spanned_rows(false, &display_map);
4387
4388 // Avoid re-outdenting a row that has already been outdented by a
4389 // previous selection.
4390 if let Some(last_row) = last_outdent {
4391 if last_row == rows.start {
4392 rows.start += 1;
4393 }
4394 }
4395
4396 for row in rows {
4397 let indent_size = snapshot.indent_size_for_line(row);
4398 if indent_size.len > 0 {
4399 let deletion_len = match indent_size.kind {
4400 IndentKind::Space => {
4401 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4402 if columns_to_prev_tab_stop == 0 {
4403 tab_size
4404 } else {
4405 columns_to_prev_tab_stop
4406 }
4407 }
4408 IndentKind::Tab => 1,
4409 };
4410 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4411 last_outdent = Some(row);
4412 }
4413 }
4414 }
4415 }
4416
4417 self.transact(cx, |this, cx| {
4418 this.buffer.update(cx, |buffer, cx| {
4419 let empty_str: Arc<str> = "".into();
4420 buffer.edit(
4421 deletion_ranges
4422 .into_iter()
4423 .map(|range| (range, empty_str.clone())),
4424 None,
4425 cx,
4426 );
4427 });
4428 let selections = this.selections.all::<usize>(cx);
4429 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4430 });
4431 }
4432
4433 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4434 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4435 let selections = self.selections.all::<Point>(cx);
4436
4437 let mut new_cursors = Vec::new();
4438 let mut edit_ranges = Vec::new();
4439 let mut selections = selections.iter().peekable();
4440 while let Some(selection) = selections.next() {
4441 let mut rows = selection.spanned_rows(false, &display_map);
4442 let goal_display_column = selection.head().to_display_point(&display_map).column();
4443
4444 // Accumulate contiguous regions of rows that we want to delete.
4445 while let Some(next_selection) = selections.peek() {
4446 let next_rows = next_selection.spanned_rows(false, &display_map);
4447 if next_rows.start <= rows.end {
4448 rows.end = next_rows.end;
4449 selections.next().unwrap();
4450 } else {
4451 break;
4452 }
4453 }
4454
4455 let buffer = &display_map.buffer_snapshot;
4456 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4457 let edit_end;
4458 let cursor_buffer_row;
4459 if buffer.max_point().row >= rows.end {
4460 // If there's a line after the range, delete the \n from the end of the row range
4461 // and position the cursor on the next line.
4462 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4463 cursor_buffer_row = rows.end;
4464 } else {
4465 // If there isn't a line after the range, delete the \n from the line before the
4466 // start of the row range and position the cursor there.
4467 edit_start = edit_start.saturating_sub(1);
4468 edit_end = buffer.len();
4469 cursor_buffer_row = rows.start.saturating_sub(1);
4470 }
4471
4472 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4473 *cursor.column_mut() =
4474 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4475
4476 new_cursors.push((
4477 selection.id,
4478 buffer.anchor_after(cursor.to_point(&display_map)),
4479 ));
4480 edit_ranges.push(edit_start..edit_end);
4481 }
4482
4483 self.transact(cx, |this, cx| {
4484 let buffer = this.buffer.update(cx, |buffer, cx| {
4485 let empty_str: Arc<str> = "".into();
4486 buffer.edit(
4487 edit_ranges
4488 .into_iter()
4489 .map(|range| (range, empty_str.clone())),
4490 None,
4491 cx,
4492 );
4493 buffer.snapshot(cx)
4494 });
4495 let new_selections = new_cursors
4496 .into_iter()
4497 .map(|(id, cursor)| {
4498 let cursor = cursor.to_point(&buffer);
4499 Selection {
4500 id,
4501 start: cursor,
4502 end: cursor,
4503 reversed: false,
4504 goal: SelectionGoal::None,
4505 }
4506 })
4507 .collect();
4508
4509 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4510 s.select(new_selections);
4511 });
4512 });
4513 }
4514
4515 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4516 let mut row_ranges = Vec::<Range<u32>>::new();
4517 for selection in self.selections.all::<Point>(cx) {
4518 let start = selection.start.row;
4519 let end = if selection.start.row == selection.end.row {
4520 selection.start.row + 1
4521 } else {
4522 selection.end.row
4523 };
4524
4525 if let Some(last_row_range) = row_ranges.last_mut() {
4526 if start <= last_row_range.end {
4527 last_row_range.end = end;
4528 continue;
4529 }
4530 }
4531 row_ranges.push(start..end);
4532 }
4533
4534 let snapshot = self.buffer.read(cx).snapshot(cx);
4535 let mut cursor_positions = Vec::new();
4536 for row_range in &row_ranges {
4537 let anchor = snapshot.anchor_before(Point::new(
4538 row_range.end - 1,
4539 snapshot.line_len(row_range.end - 1),
4540 ));
4541 cursor_positions.push(anchor.clone()..anchor);
4542 }
4543
4544 self.transact(cx, |this, cx| {
4545 for row_range in row_ranges.into_iter().rev() {
4546 for row in row_range.rev() {
4547 let end_of_line = Point::new(row, snapshot.line_len(row));
4548 let indent = snapshot.indent_size_for_line(row + 1);
4549 let start_of_next_line = Point::new(row + 1, indent.len);
4550
4551 let replace = if snapshot.line_len(row + 1) > indent.len {
4552 " "
4553 } else {
4554 ""
4555 };
4556
4557 this.buffer.update(cx, |buffer, cx| {
4558 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4559 });
4560 }
4561 }
4562
4563 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4564 s.select_anchor_ranges(cursor_positions)
4565 });
4566 });
4567 }
4568
4569 pub fn sort_lines_case_sensitive(
4570 &mut self,
4571 _: &SortLinesCaseSensitive,
4572 cx: &mut ViewContext<Self>,
4573 ) {
4574 self.manipulate_lines(cx, |lines| lines.sort())
4575 }
4576
4577 pub fn sort_lines_case_insensitive(
4578 &mut self,
4579 _: &SortLinesCaseInsensitive,
4580 cx: &mut ViewContext<Self>,
4581 ) {
4582 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4583 }
4584
4585 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4586 self.manipulate_lines(cx, |lines| lines.reverse())
4587 }
4588
4589 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4590 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4591 }
4592
4593 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4594 where
4595 Fn: FnMut(&mut [&str]),
4596 {
4597 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4598 let buffer = self.buffer.read(cx).snapshot(cx);
4599
4600 let mut edits = Vec::new();
4601
4602 let selections = self.selections.all::<Point>(cx);
4603 let mut selections = selections.iter().peekable();
4604 let mut contiguous_row_selections = Vec::new();
4605 let mut new_selections = Vec::new();
4606
4607 while let Some(selection) = selections.next() {
4608 let (start_row, end_row) = consume_contiguous_rows(
4609 &mut contiguous_row_selections,
4610 selection,
4611 &display_map,
4612 &mut selections,
4613 );
4614
4615 let start_point = Point::new(start_row, 0);
4616 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4617 let text = buffer
4618 .text_for_range(start_point..end_point)
4619 .collect::<String>();
4620 let mut lines = text.split("\n").collect_vec();
4621
4622 let lines_len = lines.len();
4623 callback(&mut lines);
4624
4625 // This is a current limitation with selections.
4626 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4627 debug_assert!(
4628 lines.len() == lines_len,
4629 "callback should not change the number of lines"
4630 );
4631
4632 edits.push((start_point..end_point, lines.join("\n")));
4633 let start_anchor = buffer.anchor_after(start_point);
4634 let end_anchor = buffer.anchor_before(end_point);
4635
4636 // Make selection and push
4637 new_selections.push(Selection {
4638 id: selection.id,
4639 start: start_anchor.to_offset(&buffer),
4640 end: end_anchor.to_offset(&buffer),
4641 goal: SelectionGoal::None,
4642 reversed: selection.reversed,
4643 });
4644 }
4645
4646 self.transact(cx, |this, cx| {
4647 this.buffer.update(cx, |buffer, cx| {
4648 buffer.edit(edits, None, cx);
4649 });
4650
4651 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4652 s.select(new_selections);
4653 });
4654
4655 this.request_autoscroll(Autoscroll::fit(), cx);
4656 });
4657 }
4658
4659 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4660 self.manipulate_text(cx, |text| text.to_uppercase())
4661 }
4662
4663 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4664 self.manipulate_text(cx, |text| text.to_lowercase())
4665 }
4666
4667 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4668 self.manipulate_text(cx, |text| {
4669 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4670 // https://github.com/rutrum/convert-case/issues/16
4671 text.split("\n")
4672 .map(|line| line.to_case(Case::Title))
4673 .join("\n")
4674 })
4675 }
4676
4677 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4678 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4679 }
4680
4681 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4682 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4683 }
4684
4685 pub fn convert_to_upper_camel_case(
4686 &mut self,
4687 _: &ConvertToUpperCamelCase,
4688 cx: &mut ViewContext<Self>,
4689 ) {
4690 self.manipulate_text(cx, |text| {
4691 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4692 // https://github.com/rutrum/convert-case/issues/16
4693 text.split("\n")
4694 .map(|line| line.to_case(Case::UpperCamel))
4695 .join("\n")
4696 })
4697 }
4698
4699 pub fn convert_to_lower_camel_case(
4700 &mut self,
4701 _: &ConvertToLowerCamelCase,
4702 cx: &mut ViewContext<Self>,
4703 ) {
4704 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4705 }
4706
4707 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4708 where
4709 Fn: FnMut(&str) -> String,
4710 {
4711 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4712 let buffer = self.buffer.read(cx).snapshot(cx);
4713
4714 let mut new_selections = Vec::new();
4715 let mut edits = Vec::new();
4716 let mut selection_adjustment = 0i32;
4717
4718 for selection in self.selections.all::<usize>(cx) {
4719 let selection_is_empty = selection.is_empty();
4720
4721 let (start, end) = if selection_is_empty {
4722 let word_range = movement::surrounding_word(
4723 &display_map,
4724 selection.start.to_display_point(&display_map),
4725 );
4726 let start = word_range.start.to_offset(&display_map, Bias::Left);
4727 let end = word_range.end.to_offset(&display_map, Bias::Left);
4728 (start, end)
4729 } else {
4730 (selection.start, selection.end)
4731 };
4732
4733 let text = buffer.text_for_range(start..end).collect::<String>();
4734 let old_length = text.len() as i32;
4735 let text = callback(&text);
4736
4737 new_selections.push(Selection {
4738 start: (start as i32 - selection_adjustment) as usize,
4739 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4740 goal: SelectionGoal::None,
4741 ..selection
4742 });
4743
4744 selection_adjustment += old_length - text.len() as i32;
4745
4746 edits.push((start..end, text));
4747 }
4748
4749 self.transact(cx, |this, cx| {
4750 this.buffer.update(cx, |buffer, cx| {
4751 buffer.edit(edits, None, cx);
4752 });
4753
4754 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4755 s.select(new_selections);
4756 });
4757
4758 this.request_autoscroll(Autoscroll::fit(), cx);
4759 });
4760 }
4761
4762 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4763 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4764 let buffer = &display_map.buffer_snapshot;
4765 let selections = self.selections.all::<Point>(cx);
4766
4767 let mut edits = Vec::new();
4768 let mut selections_iter = selections.iter().peekable();
4769 while let Some(selection) = selections_iter.next() {
4770 // Avoid duplicating the same lines twice.
4771 let mut rows = selection.spanned_rows(false, &display_map);
4772
4773 while let Some(next_selection) = selections_iter.peek() {
4774 let next_rows = next_selection.spanned_rows(false, &display_map);
4775 if next_rows.start < rows.end {
4776 rows.end = next_rows.end;
4777 selections_iter.next().unwrap();
4778 } else {
4779 break;
4780 }
4781 }
4782
4783 // Copy the text from the selected row region and splice it at the start of the region.
4784 let start = Point::new(rows.start, 0);
4785 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4786 let text = buffer
4787 .text_for_range(start..end)
4788 .chain(Some("\n"))
4789 .collect::<String>();
4790 edits.push((start..start, text));
4791 }
4792
4793 self.transact(cx, |this, cx| {
4794 this.buffer.update(cx, |buffer, cx| {
4795 buffer.edit(edits, None, cx);
4796 });
4797
4798 this.request_autoscroll(Autoscroll::fit(), cx);
4799 });
4800 }
4801
4802 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4803 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4804 let buffer = self.buffer.read(cx).snapshot(cx);
4805
4806 let mut edits = Vec::new();
4807 let mut unfold_ranges = Vec::new();
4808 let mut refold_ranges = Vec::new();
4809
4810 let selections = self.selections.all::<Point>(cx);
4811 let mut selections = selections.iter().peekable();
4812 let mut contiguous_row_selections = Vec::new();
4813 let mut new_selections = Vec::new();
4814
4815 while let Some(selection) = selections.next() {
4816 // Find all the selections that span a contiguous row range
4817 let (start_row, end_row) = consume_contiguous_rows(
4818 &mut contiguous_row_selections,
4819 selection,
4820 &display_map,
4821 &mut selections,
4822 );
4823
4824 // Move the text spanned by the row range to be before the line preceding the row range
4825 if start_row > 0 {
4826 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4827 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4828 let insertion_point = display_map
4829 .prev_line_boundary(Point::new(start_row - 1, 0))
4830 .0;
4831
4832 // Don't move lines across excerpts
4833 if buffer
4834 .excerpt_boundaries_in_range((
4835 Bound::Excluded(insertion_point),
4836 Bound::Included(range_to_move.end),
4837 ))
4838 .next()
4839 .is_none()
4840 {
4841 let text = buffer
4842 .text_for_range(range_to_move.clone())
4843 .flat_map(|s| s.chars())
4844 .skip(1)
4845 .chain(['\n'])
4846 .collect::<String>();
4847
4848 edits.push((
4849 buffer.anchor_after(range_to_move.start)
4850 ..buffer.anchor_before(range_to_move.end),
4851 String::new(),
4852 ));
4853 let insertion_anchor = buffer.anchor_after(insertion_point);
4854 edits.push((insertion_anchor..insertion_anchor, text));
4855
4856 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4857
4858 // Move selections up
4859 new_selections.extend(contiguous_row_selections.drain(..).map(
4860 |mut selection| {
4861 selection.start.row -= row_delta;
4862 selection.end.row -= row_delta;
4863 selection
4864 },
4865 ));
4866
4867 // Move folds up
4868 unfold_ranges.push(range_to_move.clone());
4869 for fold in display_map.folds_in_range(
4870 buffer.anchor_before(range_to_move.start)
4871 ..buffer.anchor_after(range_to_move.end),
4872 ) {
4873 let mut start = fold.range.start.to_point(&buffer);
4874 let mut end = fold.range.end.to_point(&buffer);
4875 start.row -= row_delta;
4876 end.row -= row_delta;
4877 refold_ranges.push(start..end);
4878 }
4879 }
4880 }
4881
4882 // If we didn't move line(s), preserve the existing selections
4883 new_selections.append(&mut contiguous_row_selections);
4884 }
4885
4886 self.transact(cx, |this, cx| {
4887 this.unfold_ranges(unfold_ranges, true, true, cx);
4888 this.buffer.update(cx, |buffer, cx| {
4889 for (range, text) in edits {
4890 buffer.edit([(range, text)], None, cx);
4891 }
4892 });
4893 this.fold_ranges(refold_ranges, true, cx);
4894 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4895 s.select(new_selections);
4896 })
4897 });
4898 }
4899
4900 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4901 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4902 let buffer = self.buffer.read(cx).snapshot(cx);
4903
4904 let mut edits = Vec::new();
4905 let mut unfold_ranges = Vec::new();
4906 let mut refold_ranges = Vec::new();
4907
4908 let selections = self.selections.all::<Point>(cx);
4909 let mut selections = selections.iter().peekable();
4910 let mut contiguous_row_selections = Vec::new();
4911 let mut new_selections = Vec::new();
4912
4913 while let Some(selection) = selections.next() {
4914 // Find all the selections that span a contiguous row range
4915 let (start_row, end_row) = consume_contiguous_rows(
4916 &mut contiguous_row_selections,
4917 selection,
4918 &display_map,
4919 &mut selections,
4920 );
4921
4922 // Move the text spanned by the row range to be after the last line of the row range
4923 if end_row <= buffer.max_point().row {
4924 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4925 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4926
4927 // Don't move lines across excerpt boundaries
4928 if buffer
4929 .excerpt_boundaries_in_range((
4930 Bound::Excluded(range_to_move.start),
4931 Bound::Included(insertion_point),
4932 ))
4933 .next()
4934 .is_none()
4935 {
4936 let mut text = String::from("\n");
4937 text.extend(buffer.text_for_range(range_to_move.clone()));
4938 text.pop(); // Drop trailing newline
4939 edits.push((
4940 buffer.anchor_after(range_to_move.start)
4941 ..buffer.anchor_before(range_to_move.end),
4942 String::new(),
4943 ));
4944 let insertion_anchor = buffer.anchor_after(insertion_point);
4945 edits.push((insertion_anchor..insertion_anchor, text));
4946
4947 let row_delta = insertion_point.row - range_to_move.end.row + 1;
4948
4949 // Move selections down
4950 new_selections.extend(contiguous_row_selections.drain(..).map(
4951 |mut selection| {
4952 selection.start.row += row_delta;
4953 selection.end.row += row_delta;
4954 selection
4955 },
4956 ));
4957
4958 // Move folds down
4959 unfold_ranges.push(range_to_move.clone());
4960 for fold in display_map.folds_in_range(
4961 buffer.anchor_before(range_to_move.start)
4962 ..buffer.anchor_after(range_to_move.end),
4963 ) {
4964 let mut start = fold.range.start.to_point(&buffer);
4965 let mut end = fold.range.end.to_point(&buffer);
4966 start.row += row_delta;
4967 end.row += row_delta;
4968 refold_ranges.push(start..end);
4969 }
4970 }
4971 }
4972
4973 // If we didn't move line(s), preserve the existing selections
4974 new_selections.append(&mut contiguous_row_selections);
4975 }
4976
4977 self.transact(cx, |this, cx| {
4978 this.unfold_ranges(unfold_ranges, true, true, cx);
4979 this.buffer.update(cx, |buffer, cx| {
4980 for (range, text) in edits {
4981 buffer.edit([(range, text)], None, cx);
4982 }
4983 });
4984 this.fold_ranges(refold_ranges, true, cx);
4985 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
4986 });
4987 }
4988
4989 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
4990 let text_layout_details = &self.text_layout_details(cx);
4991 self.transact(cx, |this, cx| {
4992 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4993 let mut edits: Vec<(Range<usize>, String)> = Default::default();
4994 let line_mode = s.line_mode;
4995 s.move_with(|display_map, selection| {
4996 if !selection.is_empty() || line_mode {
4997 return;
4998 }
4999
5000 let mut head = selection.head();
5001 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5002 if head.column() == display_map.line_len(head.row()) {
5003 transpose_offset = display_map
5004 .buffer_snapshot
5005 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5006 }
5007
5008 if transpose_offset == 0 {
5009 return;
5010 }
5011
5012 *head.column_mut() += 1;
5013 head = display_map.clip_point(head, Bias::Right);
5014 let goal = SelectionGoal::HorizontalPosition(
5015 display_map
5016 .x_for_display_point(head, &text_layout_details)
5017 .into(),
5018 );
5019 selection.collapse_to(head, goal);
5020
5021 let transpose_start = display_map
5022 .buffer_snapshot
5023 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5024 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5025 let transpose_end = display_map
5026 .buffer_snapshot
5027 .clip_offset(transpose_offset + 1, Bias::Right);
5028 if let Some(ch) =
5029 display_map.buffer_snapshot.chars_at(transpose_start).next()
5030 {
5031 edits.push((transpose_start..transpose_offset, String::new()));
5032 edits.push((transpose_end..transpose_end, ch.to_string()));
5033 }
5034 }
5035 });
5036 edits
5037 });
5038 this.buffer
5039 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5040 let selections = this.selections.all::<usize>(cx);
5041 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5042 s.select(selections);
5043 });
5044 });
5045 }
5046
5047 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5048 let mut text = String::new();
5049 let buffer = self.buffer.read(cx).snapshot(cx);
5050 let mut selections = self.selections.all::<Point>(cx);
5051 let mut clipboard_selections = Vec::with_capacity(selections.len());
5052 {
5053 let max_point = buffer.max_point();
5054 let mut is_first = true;
5055 for selection in &mut selections {
5056 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5057 if is_entire_line {
5058 selection.start = Point::new(selection.start.row, 0);
5059 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5060 selection.goal = SelectionGoal::None;
5061 }
5062 if is_first {
5063 is_first = false;
5064 } else {
5065 text += "\n";
5066 }
5067 let mut len = 0;
5068 for chunk in buffer.text_for_range(selection.start..selection.end) {
5069 text.push_str(chunk);
5070 len += chunk.len();
5071 }
5072 clipboard_selections.push(ClipboardSelection {
5073 len,
5074 is_entire_line,
5075 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5076 });
5077 }
5078 }
5079
5080 self.transact(cx, |this, cx| {
5081 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5082 s.select(selections);
5083 });
5084 this.insert("", cx);
5085 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5086 });
5087 }
5088
5089 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5090 let selections = self.selections.all::<Point>(cx);
5091 let buffer = self.buffer.read(cx).read(cx);
5092 let mut text = String::new();
5093
5094 let mut clipboard_selections = Vec::with_capacity(selections.len());
5095 {
5096 let max_point = buffer.max_point();
5097 let mut is_first = true;
5098 for selection in selections.iter() {
5099 let mut start = selection.start;
5100 let mut end = selection.end;
5101 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5102 if is_entire_line {
5103 start = Point::new(start.row, 0);
5104 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5105 }
5106 if is_first {
5107 is_first = false;
5108 } else {
5109 text += "\n";
5110 }
5111 let mut len = 0;
5112 for chunk in buffer.text_for_range(start..end) {
5113 text.push_str(chunk);
5114 len += chunk.len();
5115 }
5116 clipboard_selections.push(ClipboardSelection {
5117 len,
5118 is_entire_line,
5119 first_line_indent: buffer.indent_size_for_line(start.row).len,
5120 });
5121 }
5122 }
5123
5124 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5125 }
5126
5127 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5128 if self.read_only(cx) {
5129 return;
5130 }
5131
5132 self.transact(cx, |this, cx| {
5133 if let Some(item) = cx.read_from_clipboard() {
5134 let clipboard_text = Cow::Borrowed(item.text());
5135 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5136 let old_selections = this.selections.all::<usize>(cx);
5137 let all_selections_were_entire_line =
5138 clipboard_selections.iter().all(|s| s.is_entire_line);
5139 let first_selection_indent_column =
5140 clipboard_selections.first().map(|s| s.first_line_indent);
5141 if clipboard_selections.len() != old_selections.len() {
5142 clipboard_selections.drain(..);
5143 }
5144
5145 this.buffer.update(cx, |buffer, cx| {
5146 let snapshot = buffer.read(cx);
5147 let mut start_offset = 0;
5148 let mut edits = Vec::new();
5149 let mut original_indent_columns = Vec::new();
5150 let line_mode = this.selections.line_mode;
5151 for (ix, selection) in old_selections.iter().enumerate() {
5152 let to_insert;
5153 let entire_line;
5154 let original_indent_column;
5155 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5156 let end_offset = start_offset + clipboard_selection.len;
5157 to_insert = &clipboard_text[start_offset..end_offset];
5158 entire_line = clipboard_selection.is_entire_line;
5159 start_offset = end_offset + 1;
5160 original_indent_column =
5161 Some(clipboard_selection.first_line_indent);
5162 } else {
5163 to_insert = clipboard_text.as_str();
5164 entire_line = all_selections_were_entire_line;
5165 original_indent_column = first_selection_indent_column
5166 }
5167
5168 // If the corresponding selection was empty when this slice of the
5169 // clipboard text was written, then the entire line containing the
5170 // selection was copied. If this selection is also currently empty,
5171 // then paste the line before the current line of the buffer.
5172 let range = if selection.is_empty() && !line_mode && entire_line {
5173 let column = selection.start.to_point(&snapshot).column as usize;
5174 let line_start = selection.start - column;
5175 line_start..line_start
5176 } else {
5177 selection.range()
5178 };
5179
5180 edits.push((range, to_insert));
5181 original_indent_columns.extend(original_indent_column);
5182 }
5183 drop(snapshot);
5184
5185 buffer.edit(
5186 edits,
5187 Some(AutoindentMode::Block {
5188 original_indent_columns,
5189 }),
5190 cx,
5191 );
5192 });
5193
5194 let selections = this.selections.all::<usize>(cx);
5195 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5196 } else {
5197 this.insert(&clipboard_text, cx);
5198 }
5199 }
5200 });
5201 }
5202
5203 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5204 if self.read_only(cx) {
5205 return;
5206 }
5207
5208 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5209 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5210 self.change_selections(None, cx, |s| {
5211 s.select_anchors(selections.to_vec());
5212 });
5213 }
5214 self.request_autoscroll(Autoscroll::fit(), cx);
5215 self.unmark_text(cx);
5216 self.refresh_copilot_suggestions(true, cx);
5217 cx.emit(EditorEvent::Edited);
5218 }
5219 }
5220
5221 pub fn redo(&mut self, _: &Redo, 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.redo(cx)) {
5227 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5228 {
5229 self.change_selections(None, cx, |s| {
5230 s.select_anchors(selections.to_vec());
5231 });
5232 }
5233 self.request_autoscroll(Autoscroll::fit(), cx);
5234 self.unmark_text(cx);
5235 self.refresh_copilot_suggestions(true, cx);
5236 cx.emit(EditorEvent::Edited);
5237 }
5238 }
5239
5240 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5241 self.buffer
5242 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5243 }
5244
5245 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5246 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5247 let line_mode = s.line_mode;
5248 s.move_with(|map, selection| {
5249 let cursor = if selection.is_empty() && !line_mode {
5250 movement::left(map, selection.start)
5251 } else {
5252 selection.start
5253 };
5254 selection.collapse_to(cursor, SelectionGoal::None);
5255 });
5256 })
5257 }
5258
5259 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5260 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5261 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5262 })
5263 }
5264
5265 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5266 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5267 let line_mode = s.line_mode;
5268 s.move_with(|map, selection| {
5269 let cursor = if selection.is_empty() && !line_mode {
5270 movement::right(map, selection.end)
5271 } else {
5272 selection.end
5273 };
5274 selection.collapse_to(cursor, SelectionGoal::None)
5275 });
5276 })
5277 }
5278
5279 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5280 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5281 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5282 })
5283 }
5284
5285 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5286 if self.take_rename(true, cx).is_some() {
5287 return;
5288 }
5289
5290 if matches!(self.mode, EditorMode::SingleLine) {
5291 cx.propagate();
5292 return;
5293 }
5294
5295 let text_layout_details = &self.text_layout_details(cx);
5296
5297 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5298 let line_mode = s.line_mode;
5299 s.move_with(|map, selection| {
5300 if !selection.is_empty() && !line_mode {
5301 selection.goal = SelectionGoal::None;
5302 }
5303 let (cursor, goal) = movement::up(
5304 map,
5305 selection.start,
5306 selection.goal,
5307 false,
5308 &text_layout_details,
5309 );
5310 selection.collapse_to(cursor, goal);
5311 });
5312 })
5313 }
5314
5315 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5316 if self.take_rename(true, cx).is_some() {
5317 return;
5318 }
5319
5320 if matches!(self.mode, EditorMode::SingleLine) {
5321 cx.propagate();
5322 return;
5323 }
5324
5325 let row_count = if let Some(row_count) = self.visible_line_count() {
5326 row_count as u32 - 1
5327 } else {
5328 return;
5329 };
5330
5331 let autoscroll = if action.center_cursor {
5332 Autoscroll::center()
5333 } else {
5334 Autoscroll::fit()
5335 };
5336
5337 let text_layout_details = &self.text_layout_details(cx);
5338
5339 self.change_selections(Some(autoscroll), cx, |s| {
5340 let line_mode = s.line_mode;
5341 s.move_with(|map, selection| {
5342 if !selection.is_empty() && !line_mode {
5343 selection.goal = SelectionGoal::None;
5344 }
5345 let (cursor, goal) = movement::up_by_rows(
5346 map,
5347 selection.end,
5348 row_count,
5349 selection.goal,
5350 false,
5351 &text_layout_details,
5352 );
5353 selection.collapse_to(cursor, goal);
5354 });
5355 });
5356 }
5357
5358 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5359 let text_layout_details = &self.text_layout_details(cx);
5360 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5361 s.move_heads_with(|map, head, goal| {
5362 movement::up(map, head, goal, false, &text_layout_details)
5363 })
5364 })
5365 }
5366
5367 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5368 self.take_rename(true, cx);
5369
5370 if self.mode == EditorMode::SingleLine {
5371 cx.propagate();
5372 return;
5373 }
5374
5375 let text_layout_details = &self.text_layout_details(cx);
5376 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5377 let line_mode = s.line_mode;
5378 s.move_with(|map, selection| {
5379 if !selection.is_empty() && !line_mode {
5380 selection.goal = SelectionGoal::None;
5381 }
5382 let (cursor, goal) = movement::down(
5383 map,
5384 selection.end,
5385 selection.goal,
5386 false,
5387 &text_layout_details,
5388 );
5389 selection.collapse_to(cursor, goal);
5390 });
5391 });
5392 }
5393
5394 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5395 if self.take_rename(true, cx).is_some() {
5396 return;
5397 }
5398
5399 if self
5400 .context_menu
5401 .write()
5402 .as_mut()
5403 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5404 .unwrap_or(false)
5405 {
5406 return;
5407 }
5408
5409 if matches!(self.mode, EditorMode::SingleLine) {
5410 cx.propagate();
5411 return;
5412 }
5413
5414 let row_count = if let Some(row_count) = self.visible_line_count() {
5415 row_count as u32 - 1
5416 } else {
5417 return;
5418 };
5419
5420 let autoscroll = if action.center_cursor {
5421 Autoscroll::center()
5422 } else {
5423 Autoscroll::fit()
5424 };
5425
5426 let text_layout_details = &self.text_layout_details(cx);
5427 self.change_selections(Some(autoscroll), cx, |s| {
5428 let line_mode = s.line_mode;
5429 s.move_with(|map, selection| {
5430 if !selection.is_empty() && !line_mode {
5431 selection.goal = SelectionGoal::None;
5432 }
5433 let (cursor, goal) = movement::down_by_rows(
5434 map,
5435 selection.end,
5436 row_count,
5437 selection.goal,
5438 false,
5439 &text_layout_details,
5440 );
5441 selection.collapse_to(cursor, goal);
5442 });
5443 });
5444 }
5445
5446 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5447 let text_layout_details = &self.text_layout_details(cx);
5448 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5449 s.move_heads_with(|map, head, goal| {
5450 movement::down(map, head, goal, false, &text_layout_details)
5451 })
5452 });
5453 }
5454
5455 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5456 if let Some(context_menu) = self.context_menu.write().as_mut() {
5457 context_menu.select_first(self.project.as_ref(), cx);
5458 }
5459 }
5460
5461 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5462 if let Some(context_menu) = self.context_menu.write().as_mut() {
5463 context_menu.select_prev(self.project.as_ref(), cx);
5464 }
5465 }
5466
5467 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5468 if let Some(context_menu) = self.context_menu.write().as_mut() {
5469 context_menu.select_next(self.project.as_ref(), cx);
5470 }
5471 }
5472
5473 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5474 if let Some(context_menu) = self.context_menu.write().as_mut() {
5475 context_menu.select_last(self.project.as_ref(), cx);
5476 }
5477 }
5478
5479 pub fn move_to_previous_word_start(
5480 &mut self,
5481 _: &MoveToPreviousWordStart,
5482 cx: &mut ViewContext<Self>,
5483 ) {
5484 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5485 s.move_cursors_with(|map, head, _| {
5486 (
5487 movement::previous_word_start(map, head),
5488 SelectionGoal::None,
5489 )
5490 });
5491 })
5492 }
5493
5494 pub fn move_to_previous_subword_start(
5495 &mut self,
5496 _: &MoveToPreviousSubwordStart,
5497 cx: &mut ViewContext<Self>,
5498 ) {
5499 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5500 s.move_cursors_with(|map, head, _| {
5501 (
5502 movement::previous_subword_start(map, head),
5503 SelectionGoal::None,
5504 )
5505 });
5506 })
5507 }
5508
5509 pub fn select_to_previous_word_start(
5510 &mut self,
5511 _: &SelectToPreviousWordStart,
5512 cx: &mut ViewContext<Self>,
5513 ) {
5514 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5515 s.move_heads_with(|map, head, _| {
5516 (
5517 movement::previous_word_start(map, head),
5518 SelectionGoal::None,
5519 )
5520 });
5521 })
5522 }
5523
5524 pub fn select_to_previous_subword_start(
5525 &mut self,
5526 _: &SelectToPreviousSubwordStart,
5527 cx: &mut ViewContext<Self>,
5528 ) {
5529 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5530 s.move_heads_with(|map, head, _| {
5531 (
5532 movement::previous_subword_start(map, head),
5533 SelectionGoal::None,
5534 )
5535 });
5536 })
5537 }
5538
5539 pub fn delete_to_previous_word_start(
5540 &mut self,
5541 _: &DeleteToPreviousWordStart,
5542 cx: &mut ViewContext<Self>,
5543 ) {
5544 self.transact(cx, |this, cx| {
5545 this.select_autoclose_pair(cx);
5546 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5547 let line_mode = s.line_mode;
5548 s.move_with(|map, selection| {
5549 if selection.is_empty() && !line_mode {
5550 let cursor = movement::previous_word_start(map, selection.head());
5551 selection.set_head(cursor, SelectionGoal::None);
5552 }
5553 });
5554 });
5555 this.insert("", cx);
5556 });
5557 }
5558
5559 pub fn delete_to_previous_subword_start(
5560 &mut self,
5561 _: &DeleteToPreviousSubwordStart,
5562 cx: &mut ViewContext<Self>,
5563 ) {
5564 self.transact(cx, |this, cx| {
5565 this.select_autoclose_pair(cx);
5566 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5567 let line_mode = s.line_mode;
5568 s.move_with(|map, selection| {
5569 if selection.is_empty() && !line_mode {
5570 let cursor = movement::previous_subword_start(map, selection.head());
5571 selection.set_head(cursor, SelectionGoal::None);
5572 }
5573 });
5574 });
5575 this.insert("", cx);
5576 });
5577 }
5578
5579 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5580 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5581 s.move_cursors_with(|map, head, _| {
5582 (movement::next_word_end(map, head), SelectionGoal::None)
5583 });
5584 })
5585 }
5586
5587 pub fn move_to_next_subword_end(
5588 &mut self,
5589 _: &MoveToNextSubwordEnd,
5590 cx: &mut ViewContext<Self>,
5591 ) {
5592 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5593 s.move_cursors_with(|map, head, _| {
5594 (movement::next_subword_end(map, head), SelectionGoal::None)
5595 });
5596 })
5597 }
5598
5599 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5600 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5601 s.move_heads_with(|map, head, _| {
5602 (movement::next_word_end(map, head), SelectionGoal::None)
5603 });
5604 })
5605 }
5606
5607 pub fn select_to_next_subword_end(
5608 &mut self,
5609 _: &SelectToNextSubwordEnd,
5610 cx: &mut ViewContext<Self>,
5611 ) {
5612 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5613 s.move_heads_with(|map, head, _| {
5614 (movement::next_subword_end(map, head), SelectionGoal::None)
5615 });
5616 })
5617 }
5618
5619 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5620 self.transact(cx, |this, cx| {
5621 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5622 let line_mode = s.line_mode;
5623 s.move_with(|map, selection| {
5624 if selection.is_empty() && !line_mode {
5625 let cursor = movement::next_word_end(map, selection.head());
5626 selection.set_head(cursor, SelectionGoal::None);
5627 }
5628 });
5629 });
5630 this.insert("", cx);
5631 });
5632 }
5633
5634 pub fn delete_to_next_subword_end(
5635 &mut self,
5636 _: &DeleteToNextSubwordEnd,
5637 cx: &mut ViewContext<Self>,
5638 ) {
5639 self.transact(cx, |this, cx| {
5640 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5641 s.move_with(|map, selection| {
5642 if selection.is_empty() {
5643 let cursor = movement::next_subword_end(map, selection.head());
5644 selection.set_head(cursor, SelectionGoal::None);
5645 }
5646 });
5647 });
5648 this.insert("", cx);
5649 });
5650 }
5651
5652 pub fn move_to_beginning_of_line(
5653 &mut self,
5654 _: &MoveToBeginningOfLine,
5655 cx: &mut ViewContext<Self>,
5656 ) {
5657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5658 s.move_cursors_with(|map, head, _| {
5659 (
5660 movement::indented_line_beginning(map, head, true),
5661 SelectionGoal::None,
5662 )
5663 });
5664 })
5665 }
5666
5667 pub fn select_to_beginning_of_line(
5668 &mut self,
5669 action: &SelectToBeginningOfLine,
5670 cx: &mut ViewContext<Self>,
5671 ) {
5672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5673 s.move_heads_with(|map, head, _| {
5674 (
5675 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5676 SelectionGoal::None,
5677 )
5678 });
5679 });
5680 }
5681
5682 pub fn delete_to_beginning_of_line(
5683 &mut self,
5684 _: &DeleteToBeginningOfLine,
5685 cx: &mut ViewContext<Self>,
5686 ) {
5687 self.transact(cx, |this, cx| {
5688 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5689 s.move_with(|_, selection| {
5690 selection.reversed = true;
5691 });
5692 });
5693
5694 this.select_to_beginning_of_line(
5695 &SelectToBeginningOfLine {
5696 stop_at_soft_wraps: false,
5697 },
5698 cx,
5699 );
5700 this.backspace(&Backspace, cx);
5701 });
5702 }
5703
5704 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5705 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5706 s.move_cursors_with(|map, head, _| {
5707 (movement::line_end(map, head, true), SelectionGoal::None)
5708 });
5709 })
5710 }
5711
5712 pub fn select_to_end_of_line(
5713 &mut self,
5714 action: &SelectToEndOfLine,
5715 cx: &mut ViewContext<Self>,
5716 ) {
5717 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5718 s.move_heads_with(|map, head, _| {
5719 (
5720 movement::line_end(map, head, action.stop_at_soft_wraps),
5721 SelectionGoal::None,
5722 )
5723 });
5724 })
5725 }
5726
5727 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5728 self.transact(cx, |this, cx| {
5729 this.select_to_end_of_line(
5730 &SelectToEndOfLine {
5731 stop_at_soft_wraps: false,
5732 },
5733 cx,
5734 );
5735 this.delete(&Delete, cx);
5736 });
5737 }
5738
5739 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5740 self.transact(cx, |this, cx| {
5741 this.select_to_end_of_line(
5742 &SelectToEndOfLine {
5743 stop_at_soft_wraps: false,
5744 },
5745 cx,
5746 );
5747 this.cut(&Cut, cx);
5748 });
5749 }
5750
5751 pub fn move_to_start_of_paragraph(
5752 &mut self,
5753 _: &MoveToStartOfParagraph,
5754 cx: &mut ViewContext<Self>,
5755 ) {
5756 if matches!(self.mode, EditorMode::SingleLine) {
5757 cx.propagate();
5758 return;
5759 }
5760
5761 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5762 s.move_with(|map, selection| {
5763 selection.collapse_to(
5764 movement::start_of_paragraph(map, selection.head(), 1),
5765 SelectionGoal::None,
5766 )
5767 });
5768 })
5769 }
5770
5771 pub fn move_to_end_of_paragraph(
5772 &mut self,
5773 _: &MoveToEndOfParagraph,
5774 cx: &mut ViewContext<Self>,
5775 ) {
5776 if matches!(self.mode, EditorMode::SingleLine) {
5777 cx.propagate();
5778 return;
5779 }
5780
5781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5782 s.move_with(|map, selection| {
5783 selection.collapse_to(
5784 movement::end_of_paragraph(map, selection.head(), 1),
5785 SelectionGoal::None,
5786 )
5787 });
5788 })
5789 }
5790
5791 pub fn select_to_start_of_paragraph(
5792 &mut self,
5793 _: &SelectToStartOfParagraph,
5794 cx: &mut ViewContext<Self>,
5795 ) {
5796 if matches!(self.mode, EditorMode::SingleLine) {
5797 cx.propagate();
5798 return;
5799 }
5800
5801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5802 s.move_heads_with(|map, head, _| {
5803 (
5804 movement::start_of_paragraph(map, head, 1),
5805 SelectionGoal::None,
5806 )
5807 });
5808 })
5809 }
5810
5811 pub fn select_to_end_of_paragraph(
5812 &mut self,
5813 _: &SelectToEndOfParagraph,
5814 cx: &mut ViewContext<Self>,
5815 ) {
5816 if matches!(self.mode, EditorMode::SingleLine) {
5817 cx.propagate();
5818 return;
5819 }
5820
5821 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5822 s.move_heads_with(|map, head, _| {
5823 (
5824 movement::end_of_paragraph(map, head, 1),
5825 SelectionGoal::None,
5826 )
5827 });
5828 })
5829 }
5830
5831 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5832 if matches!(self.mode, EditorMode::SingleLine) {
5833 cx.propagate();
5834 return;
5835 }
5836
5837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5838 s.select_ranges(vec![0..0]);
5839 });
5840 }
5841
5842 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5843 let mut selection = self.selections.last::<Point>(cx);
5844 selection.set_head(Point::zero(), SelectionGoal::None);
5845
5846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5847 s.select(vec![selection]);
5848 });
5849 }
5850
5851 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5852 if matches!(self.mode, EditorMode::SingleLine) {
5853 cx.propagate();
5854 return;
5855 }
5856
5857 let cursor = self.buffer.read(cx).read(cx).len();
5858 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5859 s.select_ranges(vec![cursor..cursor])
5860 });
5861 }
5862
5863 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5864 self.nav_history = nav_history;
5865 }
5866
5867 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5868 self.nav_history.as_ref()
5869 }
5870
5871 fn push_to_nav_history(
5872 &mut self,
5873 cursor_anchor: Anchor,
5874 new_position: Option<Point>,
5875 cx: &mut ViewContext<Self>,
5876 ) {
5877 if let Some(nav_history) = self.nav_history.as_mut() {
5878 let buffer = self.buffer.read(cx).read(cx);
5879 let cursor_position = cursor_anchor.to_point(&buffer);
5880 let scroll_state = self.scroll_manager.anchor();
5881 let scroll_top_row = scroll_state.top_row(&buffer);
5882 drop(buffer);
5883
5884 if let Some(new_position) = new_position {
5885 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
5886 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
5887 return;
5888 }
5889 }
5890
5891 nav_history.push(
5892 Some(NavigationData {
5893 cursor_anchor,
5894 cursor_position,
5895 scroll_anchor: scroll_state,
5896 scroll_top_row,
5897 }),
5898 cx,
5899 );
5900 }
5901 }
5902
5903 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
5904 let buffer = self.buffer.read(cx).snapshot(cx);
5905 let mut selection = self.selections.first::<usize>(cx);
5906 selection.set_head(buffer.len(), SelectionGoal::None);
5907 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5908 s.select(vec![selection]);
5909 });
5910 }
5911
5912 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
5913 let end = self.buffer.read(cx).read(cx).len();
5914 self.change_selections(None, cx, |s| {
5915 s.select_ranges(vec![0..end]);
5916 });
5917 }
5918
5919 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
5920 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5921 let mut selections = self.selections.all::<Point>(cx);
5922 let max_point = display_map.buffer_snapshot.max_point();
5923 for selection in &mut selections {
5924 let rows = selection.spanned_rows(true, &display_map);
5925 selection.start = Point::new(rows.start, 0);
5926 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
5927 selection.reversed = false;
5928 }
5929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5930 s.select(selections);
5931 });
5932 }
5933
5934 pub fn split_selection_into_lines(
5935 &mut self,
5936 _: &SplitSelectionIntoLines,
5937 cx: &mut ViewContext<Self>,
5938 ) {
5939 let mut to_unfold = Vec::new();
5940 let mut new_selection_ranges = Vec::new();
5941 {
5942 let selections = self.selections.all::<Point>(cx);
5943 let buffer = self.buffer.read(cx).read(cx);
5944 for selection in selections {
5945 for row in selection.start.row..selection.end.row {
5946 let cursor = Point::new(row, buffer.line_len(row));
5947 new_selection_ranges.push(cursor..cursor);
5948 }
5949 new_selection_ranges.push(selection.end..selection.end);
5950 to_unfold.push(selection.start..selection.end);
5951 }
5952 }
5953 self.unfold_ranges(to_unfold, true, true, cx);
5954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5955 s.select_ranges(new_selection_ranges);
5956 });
5957 }
5958
5959 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
5960 self.add_selection(true, cx);
5961 }
5962
5963 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
5964 self.add_selection(false, cx);
5965 }
5966
5967 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
5968 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5969 let mut selections = self.selections.all::<Point>(cx);
5970 let text_layout_details = self.text_layout_details(cx);
5971 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
5972 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
5973 let range = oldest_selection.display_range(&display_map).sorted();
5974
5975 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
5976 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
5977 let positions = start_x.min(end_x)..start_x.max(end_x);
5978
5979 selections.clear();
5980 let mut stack = Vec::new();
5981 for row in range.start.row()..=range.end.row() {
5982 if let Some(selection) = self.selections.build_columnar_selection(
5983 &display_map,
5984 row,
5985 &positions,
5986 oldest_selection.reversed,
5987 &text_layout_details,
5988 ) {
5989 stack.push(selection.id);
5990 selections.push(selection);
5991 }
5992 }
5993
5994 if above {
5995 stack.reverse();
5996 }
5997
5998 AddSelectionsState { above, stack }
5999 });
6000
6001 let last_added_selection = *state.stack.last().unwrap();
6002 let mut new_selections = Vec::new();
6003 if above == state.above {
6004 let end_row = if above {
6005 0
6006 } else {
6007 display_map.max_point().row()
6008 };
6009
6010 'outer: for selection in selections {
6011 if selection.id == last_added_selection {
6012 let range = selection.display_range(&display_map).sorted();
6013 debug_assert_eq!(range.start.row(), range.end.row());
6014 let mut row = range.start.row();
6015 let positions =
6016 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6017 px(start)..px(end)
6018 } else {
6019 let start_x =
6020 display_map.x_for_display_point(range.start, &text_layout_details);
6021 let end_x =
6022 display_map.x_for_display_point(range.end, &text_layout_details);
6023 start_x.min(end_x)..start_x.max(end_x)
6024 };
6025
6026 while row != end_row {
6027 if above {
6028 row -= 1;
6029 } else {
6030 row += 1;
6031 }
6032
6033 if let Some(new_selection) = self.selections.build_columnar_selection(
6034 &display_map,
6035 row,
6036 &positions,
6037 selection.reversed,
6038 &text_layout_details,
6039 ) {
6040 state.stack.push(new_selection.id);
6041 if above {
6042 new_selections.push(new_selection);
6043 new_selections.push(selection);
6044 } else {
6045 new_selections.push(selection);
6046 new_selections.push(new_selection);
6047 }
6048
6049 continue 'outer;
6050 }
6051 }
6052 }
6053
6054 new_selections.push(selection);
6055 }
6056 } else {
6057 new_selections = selections;
6058 new_selections.retain(|s| s.id != last_added_selection);
6059 state.stack.pop();
6060 }
6061
6062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6063 s.select(new_selections);
6064 });
6065 if state.stack.len() > 1 {
6066 self.add_selections_state = Some(state);
6067 }
6068 }
6069
6070 pub fn select_next_match_internal(
6071 &mut self,
6072 display_map: &DisplaySnapshot,
6073 replace_newest: bool,
6074 autoscroll: Option<Autoscroll>,
6075 cx: &mut ViewContext<Self>,
6076 ) -> Result<()> {
6077 fn select_next_match_ranges(
6078 this: &mut Editor,
6079 range: Range<usize>,
6080 replace_newest: bool,
6081 auto_scroll: Option<Autoscroll>,
6082 cx: &mut ViewContext<Editor>,
6083 ) {
6084 this.unfold_ranges([range.clone()], false, true, cx);
6085 this.change_selections(auto_scroll, cx, |s| {
6086 if replace_newest {
6087 s.delete(s.newest_anchor().id);
6088 }
6089 s.insert_range(range.clone());
6090 });
6091 }
6092
6093 let buffer = &display_map.buffer_snapshot;
6094 let mut selections = self.selections.all::<usize>(cx);
6095 if let Some(mut select_next_state) = self.select_next_state.take() {
6096 let query = &select_next_state.query;
6097 if !select_next_state.done {
6098 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6099 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6100 let mut next_selected_range = None;
6101
6102 let bytes_after_last_selection =
6103 buffer.bytes_in_range(last_selection.end..buffer.len());
6104 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6105 let query_matches = query
6106 .stream_find_iter(bytes_after_last_selection)
6107 .map(|result| (last_selection.end, result))
6108 .chain(
6109 query
6110 .stream_find_iter(bytes_before_first_selection)
6111 .map(|result| (0, result)),
6112 );
6113
6114 for (start_offset, query_match) in query_matches {
6115 let query_match = query_match.unwrap(); // can only fail due to I/O
6116 let offset_range =
6117 start_offset + query_match.start()..start_offset + query_match.end();
6118 let display_range = offset_range.start.to_display_point(&display_map)
6119 ..offset_range.end.to_display_point(&display_map);
6120
6121 if !select_next_state.wordwise
6122 || (!movement::is_inside_word(&display_map, display_range.start)
6123 && !movement::is_inside_word(&display_map, display_range.end))
6124 {
6125 // TODO: This is n^2, because we might check all the selections
6126 if selections
6127 .iter()
6128 .find(|selection| selection.range().overlaps(&offset_range))
6129 .is_none()
6130 {
6131 next_selected_range = Some(offset_range);
6132 break;
6133 }
6134 }
6135 }
6136
6137 if let Some(next_selected_range) = next_selected_range {
6138 select_next_match_ranges(
6139 self,
6140 next_selected_range,
6141 replace_newest,
6142 autoscroll,
6143 cx,
6144 );
6145 } else {
6146 select_next_state.done = true;
6147 }
6148 }
6149
6150 self.select_next_state = Some(select_next_state);
6151 } else {
6152 let mut only_carets = true;
6153 let mut same_text_selected = true;
6154 let mut selected_text = None;
6155
6156 let mut selections_iter = selections.iter().peekable();
6157 while let Some(selection) = selections_iter.next() {
6158 if selection.start != selection.end {
6159 only_carets = false;
6160 }
6161
6162 if same_text_selected {
6163 if selected_text.is_none() {
6164 selected_text =
6165 Some(buffer.text_for_range(selection.range()).collect::<String>());
6166 }
6167
6168 if let Some(next_selection) = selections_iter.peek() {
6169 if next_selection.range().len() == selection.range().len() {
6170 let next_selected_text = buffer
6171 .text_for_range(next_selection.range())
6172 .collect::<String>();
6173 if Some(next_selected_text) != selected_text {
6174 same_text_selected = false;
6175 selected_text = None;
6176 }
6177 } else {
6178 same_text_selected = false;
6179 selected_text = None;
6180 }
6181 }
6182 }
6183 }
6184
6185 if only_carets {
6186 for selection in &mut selections {
6187 let word_range = movement::surrounding_word(
6188 &display_map,
6189 selection.start.to_display_point(&display_map),
6190 );
6191 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6192 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6193 selection.goal = SelectionGoal::None;
6194 selection.reversed = false;
6195 select_next_match_ranges(
6196 self,
6197 selection.start..selection.end,
6198 replace_newest,
6199 autoscroll,
6200 cx,
6201 );
6202 }
6203
6204 if selections.len() == 1 {
6205 let selection = selections
6206 .last()
6207 .expect("ensured that there's only one selection");
6208 let query = buffer
6209 .text_for_range(selection.start..selection.end)
6210 .collect::<String>();
6211 let is_empty = query.is_empty();
6212 let select_state = SelectNextState {
6213 query: AhoCorasick::new(&[query])?,
6214 wordwise: true,
6215 done: is_empty,
6216 };
6217 self.select_next_state = Some(select_state);
6218 } else {
6219 self.select_next_state = None;
6220 }
6221 } else if let Some(selected_text) = selected_text {
6222 self.select_next_state = Some(SelectNextState {
6223 query: AhoCorasick::new(&[selected_text])?,
6224 wordwise: false,
6225 done: false,
6226 });
6227 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6228 }
6229 }
6230 Ok(())
6231 }
6232
6233 pub fn select_all_matches(
6234 &mut self,
6235 _action: &SelectAllMatches,
6236 cx: &mut ViewContext<Self>,
6237 ) -> Result<()> {
6238 self.push_to_selection_history();
6239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6240
6241 self.select_next_match_internal(&display_map, false, None, cx)?;
6242 let Some(select_next_state) = self.select_next_state.as_mut() else {
6243 return Ok(());
6244 };
6245 if select_next_state.done {
6246 return Ok(());
6247 }
6248
6249 let mut new_selections = self.selections.all::<usize>(cx);
6250
6251 let buffer = &display_map.buffer_snapshot;
6252 let query_matches = select_next_state
6253 .query
6254 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6255
6256 for query_match in query_matches {
6257 let query_match = query_match.unwrap(); // can only fail due to I/O
6258 let offset_range = query_match.start()..query_match.end();
6259 let display_range = offset_range.start.to_display_point(&display_map)
6260 ..offset_range.end.to_display_point(&display_map);
6261
6262 if !select_next_state.wordwise
6263 || (!movement::is_inside_word(&display_map, display_range.start)
6264 && !movement::is_inside_word(&display_map, display_range.end))
6265 {
6266 self.selections.change_with(cx, |selections| {
6267 new_selections.push(Selection {
6268 id: selections.new_selection_id(),
6269 start: offset_range.start,
6270 end: offset_range.end,
6271 reversed: false,
6272 goal: SelectionGoal::None,
6273 });
6274 });
6275 }
6276 }
6277
6278 new_selections.sort_by_key(|selection| selection.start);
6279 let mut ix = 0;
6280 while ix + 1 < new_selections.len() {
6281 let current_selection = &new_selections[ix];
6282 let next_selection = &new_selections[ix + 1];
6283 if current_selection.range().overlaps(&next_selection.range()) {
6284 if current_selection.id < next_selection.id {
6285 new_selections.remove(ix + 1);
6286 } else {
6287 new_selections.remove(ix);
6288 }
6289 } else {
6290 ix += 1;
6291 }
6292 }
6293
6294 select_next_state.done = true;
6295 self.unfold_ranges(
6296 new_selections.iter().map(|selection| selection.range()),
6297 false,
6298 false,
6299 cx,
6300 );
6301 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6302 selections.select(new_selections)
6303 });
6304
6305 Ok(())
6306 }
6307
6308 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6309 self.push_to_selection_history();
6310 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6311 self.select_next_match_internal(
6312 &display_map,
6313 action.replace_newest,
6314 Some(Autoscroll::newest()),
6315 cx,
6316 )?;
6317 Ok(())
6318 }
6319
6320 pub fn select_previous(
6321 &mut self,
6322 action: &SelectPrevious,
6323 cx: &mut ViewContext<Self>,
6324 ) -> Result<()> {
6325 self.push_to_selection_history();
6326 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6327 let buffer = &display_map.buffer_snapshot;
6328 let mut selections = self.selections.all::<usize>(cx);
6329 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6330 let query = &select_prev_state.query;
6331 if !select_prev_state.done {
6332 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6333 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6334 let mut next_selected_range = None;
6335 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6336 let bytes_before_last_selection =
6337 buffer.reversed_bytes_in_range(0..last_selection.start);
6338 let bytes_after_first_selection =
6339 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6340 let query_matches = query
6341 .stream_find_iter(bytes_before_last_selection)
6342 .map(|result| (last_selection.start, result))
6343 .chain(
6344 query
6345 .stream_find_iter(bytes_after_first_selection)
6346 .map(|result| (buffer.len(), result)),
6347 );
6348 for (end_offset, query_match) in query_matches {
6349 let query_match = query_match.unwrap(); // can only fail due to I/O
6350 let offset_range =
6351 end_offset - query_match.end()..end_offset - query_match.start();
6352 let display_range = offset_range.start.to_display_point(&display_map)
6353 ..offset_range.end.to_display_point(&display_map);
6354
6355 if !select_prev_state.wordwise
6356 || (!movement::is_inside_word(&display_map, display_range.start)
6357 && !movement::is_inside_word(&display_map, display_range.end))
6358 {
6359 next_selected_range = Some(offset_range);
6360 break;
6361 }
6362 }
6363
6364 if let Some(next_selected_range) = next_selected_range {
6365 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6366 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6367 if action.replace_newest {
6368 s.delete(s.newest_anchor().id);
6369 }
6370 s.insert_range(next_selected_range);
6371 });
6372 } else {
6373 select_prev_state.done = true;
6374 }
6375 }
6376
6377 self.select_prev_state = Some(select_prev_state);
6378 } else {
6379 let mut only_carets = true;
6380 let mut same_text_selected = true;
6381 let mut selected_text = None;
6382
6383 let mut selections_iter = selections.iter().peekable();
6384 while let Some(selection) = selections_iter.next() {
6385 if selection.start != selection.end {
6386 only_carets = false;
6387 }
6388
6389 if same_text_selected {
6390 if selected_text.is_none() {
6391 selected_text =
6392 Some(buffer.text_for_range(selection.range()).collect::<String>());
6393 }
6394
6395 if let Some(next_selection) = selections_iter.peek() {
6396 if next_selection.range().len() == selection.range().len() {
6397 let next_selected_text = buffer
6398 .text_for_range(next_selection.range())
6399 .collect::<String>();
6400 if Some(next_selected_text) != selected_text {
6401 same_text_selected = false;
6402 selected_text = None;
6403 }
6404 } else {
6405 same_text_selected = false;
6406 selected_text = None;
6407 }
6408 }
6409 }
6410 }
6411
6412 if only_carets {
6413 for selection in &mut selections {
6414 let word_range = movement::surrounding_word(
6415 &display_map,
6416 selection.start.to_display_point(&display_map),
6417 );
6418 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6419 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6420 selection.goal = SelectionGoal::None;
6421 selection.reversed = false;
6422 }
6423 if selections.len() == 1 {
6424 let selection = selections
6425 .last()
6426 .expect("ensured that there's only one selection");
6427 let query = buffer
6428 .text_for_range(selection.start..selection.end)
6429 .collect::<String>();
6430 let is_empty = query.is_empty();
6431 let select_state = SelectNextState {
6432 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6433 wordwise: true,
6434 done: is_empty,
6435 };
6436 self.select_prev_state = Some(select_state);
6437 } else {
6438 self.select_prev_state = None;
6439 }
6440
6441 self.unfold_ranges(
6442 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6443 false,
6444 true,
6445 cx,
6446 );
6447 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6448 s.select(selections);
6449 });
6450 } else if let Some(selected_text) = selected_text {
6451 self.select_prev_state = Some(SelectNextState {
6452 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6453 wordwise: false,
6454 done: false,
6455 });
6456 self.select_previous(action, cx)?;
6457 }
6458 }
6459 Ok(())
6460 }
6461
6462 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6463 let text_layout_details = &self.text_layout_details(cx);
6464 self.transact(cx, |this, cx| {
6465 let mut selections = this.selections.all::<Point>(cx);
6466 let mut edits = Vec::new();
6467 let mut selection_edit_ranges = Vec::new();
6468 let mut last_toggled_row = None;
6469 let snapshot = this.buffer.read(cx).read(cx);
6470 let empty_str: Arc<str> = "".into();
6471 let mut suffixes_inserted = Vec::new();
6472
6473 fn comment_prefix_range(
6474 snapshot: &MultiBufferSnapshot,
6475 row: u32,
6476 comment_prefix: &str,
6477 comment_prefix_whitespace: &str,
6478 ) -> Range<Point> {
6479 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6480
6481 let mut line_bytes = snapshot
6482 .bytes_in_range(start..snapshot.max_point())
6483 .flatten()
6484 .copied();
6485
6486 // If this line currently begins with the line comment prefix, then record
6487 // the range containing the prefix.
6488 if line_bytes
6489 .by_ref()
6490 .take(comment_prefix.len())
6491 .eq(comment_prefix.bytes())
6492 {
6493 // Include any whitespace that matches the comment prefix.
6494 let matching_whitespace_len = line_bytes
6495 .zip(comment_prefix_whitespace.bytes())
6496 .take_while(|(a, b)| a == b)
6497 .count() as u32;
6498 let end = Point::new(
6499 start.row,
6500 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6501 );
6502 start..end
6503 } else {
6504 start..start
6505 }
6506 }
6507
6508 fn comment_suffix_range(
6509 snapshot: &MultiBufferSnapshot,
6510 row: u32,
6511 comment_suffix: &str,
6512 comment_suffix_has_leading_space: bool,
6513 ) -> Range<Point> {
6514 let end = Point::new(row, snapshot.line_len(row));
6515 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6516
6517 let mut line_end_bytes = snapshot
6518 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6519 .flatten()
6520 .copied();
6521
6522 let leading_space_len = if suffix_start_column > 0
6523 && line_end_bytes.next() == Some(b' ')
6524 && comment_suffix_has_leading_space
6525 {
6526 1
6527 } else {
6528 0
6529 };
6530
6531 // If this line currently begins with the line comment prefix, then record
6532 // the range containing the prefix.
6533 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6534 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6535 start..end
6536 } else {
6537 end..end
6538 }
6539 }
6540
6541 // TODO: Handle selections that cross excerpts
6542 for selection in &mut selections {
6543 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6544 let language = if let Some(language) =
6545 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6546 {
6547 language
6548 } else {
6549 continue;
6550 };
6551
6552 selection_edit_ranges.clear();
6553
6554 // If multiple selections contain a given row, avoid processing that
6555 // row more than once.
6556 let mut start_row = selection.start.row;
6557 if last_toggled_row == Some(start_row) {
6558 start_row += 1;
6559 }
6560 let end_row =
6561 if selection.end.row > selection.start.row && selection.end.column == 0 {
6562 selection.end.row - 1
6563 } else {
6564 selection.end.row
6565 };
6566 last_toggled_row = Some(end_row);
6567
6568 if start_row > end_row {
6569 continue;
6570 }
6571
6572 // If the language has line comments, toggle those.
6573 if let Some(full_comment_prefix) = language
6574 .line_comment_prefixes()
6575 .and_then(|prefixes| prefixes.first())
6576 {
6577 // Split the comment prefix's trailing whitespace into a separate string,
6578 // as that portion won't be used for detecting if a line is a comment.
6579 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6580 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6581 let mut all_selection_lines_are_comments = true;
6582
6583 for row in start_row..=end_row {
6584 if start_row < end_row && snapshot.is_line_blank(row) {
6585 continue;
6586 }
6587
6588 let prefix_range = comment_prefix_range(
6589 snapshot.deref(),
6590 row,
6591 comment_prefix,
6592 comment_prefix_whitespace,
6593 );
6594 if prefix_range.is_empty() {
6595 all_selection_lines_are_comments = false;
6596 }
6597 selection_edit_ranges.push(prefix_range);
6598 }
6599
6600 if all_selection_lines_are_comments {
6601 edits.extend(
6602 selection_edit_ranges
6603 .iter()
6604 .cloned()
6605 .map(|range| (range, empty_str.clone())),
6606 );
6607 } else {
6608 let min_column = selection_edit_ranges
6609 .iter()
6610 .map(|r| r.start.column)
6611 .min()
6612 .unwrap_or(0);
6613 edits.extend(selection_edit_ranges.iter().map(|range| {
6614 let position = Point::new(range.start.row, min_column);
6615 (position..position, full_comment_prefix.clone())
6616 }));
6617 }
6618 } else if let Some((full_comment_prefix, comment_suffix)) =
6619 language.block_comment_delimiters()
6620 {
6621 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6622 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6623 let prefix_range = comment_prefix_range(
6624 snapshot.deref(),
6625 start_row,
6626 comment_prefix,
6627 comment_prefix_whitespace,
6628 );
6629 let suffix_range = comment_suffix_range(
6630 snapshot.deref(),
6631 end_row,
6632 comment_suffix.trim_start_matches(' '),
6633 comment_suffix.starts_with(' '),
6634 );
6635
6636 if prefix_range.is_empty() || suffix_range.is_empty() {
6637 edits.push((
6638 prefix_range.start..prefix_range.start,
6639 full_comment_prefix.clone(),
6640 ));
6641 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6642 suffixes_inserted.push((end_row, comment_suffix.len()));
6643 } else {
6644 edits.push((prefix_range, empty_str.clone()));
6645 edits.push((suffix_range, empty_str.clone()));
6646 }
6647 } else {
6648 continue;
6649 }
6650 }
6651
6652 drop(snapshot);
6653 this.buffer.update(cx, |buffer, cx| {
6654 buffer.edit(edits, None, cx);
6655 });
6656
6657 // Adjust selections so that they end before any comment suffixes that
6658 // were inserted.
6659 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6660 let mut selections = this.selections.all::<Point>(cx);
6661 let snapshot = this.buffer.read(cx).read(cx);
6662 for selection in &mut selections {
6663 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6664 match row.cmp(&selection.end.row) {
6665 Ordering::Less => {
6666 suffixes_inserted.next();
6667 continue;
6668 }
6669 Ordering::Greater => break,
6670 Ordering::Equal => {
6671 if selection.end.column == snapshot.line_len(row) {
6672 if selection.is_empty() {
6673 selection.start.column -= suffix_len as u32;
6674 }
6675 selection.end.column -= suffix_len as u32;
6676 }
6677 break;
6678 }
6679 }
6680 }
6681 }
6682
6683 drop(snapshot);
6684 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6685
6686 let selections = this.selections.all::<Point>(cx);
6687 let selections_on_single_row = selections.windows(2).all(|selections| {
6688 selections[0].start.row == selections[1].start.row
6689 && selections[0].end.row == selections[1].end.row
6690 && selections[0].start.row == selections[0].end.row
6691 });
6692 let selections_selecting = selections
6693 .iter()
6694 .any(|selection| selection.start != selection.end);
6695 let advance_downwards = action.advance_downwards
6696 && selections_on_single_row
6697 && !selections_selecting
6698 && this.mode != EditorMode::SingleLine;
6699
6700 if advance_downwards {
6701 let snapshot = this.buffer.read(cx).snapshot(cx);
6702
6703 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6704 s.move_cursors_with(|display_snapshot, display_point, _| {
6705 let mut point = display_point.to_point(display_snapshot);
6706 point.row += 1;
6707 point = snapshot.clip_point(point, Bias::Left);
6708 let display_point = point.to_display_point(display_snapshot);
6709 let goal = SelectionGoal::HorizontalPosition(
6710 display_snapshot
6711 .x_for_display_point(display_point, &text_layout_details)
6712 .into(),
6713 );
6714 (display_point, goal)
6715 })
6716 });
6717 }
6718 });
6719 }
6720
6721 pub fn select_larger_syntax_node(
6722 &mut self,
6723 _: &SelectLargerSyntaxNode,
6724 cx: &mut ViewContext<Self>,
6725 ) {
6726 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6727 let buffer = self.buffer.read(cx).snapshot(cx);
6728 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6729
6730 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6731 let mut selected_larger_node = false;
6732 let new_selections = old_selections
6733 .iter()
6734 .map(|selection| {
6735 let old_range = selection.start..selection.end;
6736 let mut new_range = old_range.clone();
6737 while let Some(containing_range) =
6738 buffer.range_for_syntax_ancestor(new_range.clone())
6739 {
6740 new_range = containing_range;
6741 if !display_map.intersects_fold(new_range.start)
6742 && !display_map.intersects_fold(new_range.end)
6743 {
6744 break;
6745 }
6746 }
6747
6748 selected_larger_node |= new_range != old_range;
6749 Selection {
6750 id: selection.id,
6751 start: new_range.start,
6752 end: new_range.end,
6753 goal: SelectionGoal::None,
6754 reversed: selection.reversed,
6755 }
6756 })
6757 .collect::<Vec<_>>();
6758
6759 if selected_larger_node {
6760 stack.push(old_selections);
6761 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6762 s.select(new_selections);
6763 });
6764 }
6765 self.select_larger_syntax_node_stack = stack;
6766 }
6767
6768 pub fn select_smaller_syntax_node(
6769 &mut self,
6770 _: &SelectSmallerSyntaxNode,
6771 cx: &mut ViewContext<Self>,
6772 ) {
6773 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6774 if let Some(selections) = stack.pop() {
6775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6776 s.select(selections.to_vec());
6777 });
6778 }
6779 self.select_larger_syntax_node_stack = stack;
6780 }
6781
6782 pub fn move_to_enclosing_bracket(
6783 &mut self,
6784 _: &MoveToEnclosingBracket,
6785 cx: &mut ViewContext<Self>,
6786 ) {
6787 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6788 s.move_offsets_with(|snapshot, selection| {
6789 let Some(enclosing_bracket_ranges) =
6790 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6791 else {
6792 return;
6793 };
6794
6795 let mut best_length = usize::MAX;
6796 let mut best_inside = false;
6797 let mut best_in_bracket_range = false;
6798 let mut best_destination = None;
6799 for (open, close) in enclosing_bracket_ranges {
6800 let close = close.to_inclusive();
6801 let length = close.end() - open.start;
6802 let inside = selection.start >= open.end && selection.end <= *close.start();
6803 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6804 || close.contains(&selection.head());
6805
6806 // If best is next to a bracket and current isn't, skip
6807 if !in_bracket_range && best_in_bracket_range {
6808 continue;
6809 }
6810
6811 // Prefer smaller lengths unless best is inside and current isn't
6812 if length > best_length && (best_inside || !inside) {
6813 continue;
6814 }
6815
6816 best_length = length;
6817 best_inside = inside;
6818 best_in_bracket_range = in_bracket_range;
6819 best_destination = Some(
6820 if close.contains(&selection.start) && close.contains(&selection.end) {
6821 if inside {
6822 open.end
6823 } else {
6824 open.start
6825 }
6826 } else {
6827 if inside {
6828 *close.start()
6829 } else {
6830 *close.end()
6831 }
6832 },
6833 );
6834 }
6835
6836 if let Some(destination) = best_destination {
6837 selection.collapse_to(destination, SelectionGoal::None);
6838 }
6839 })
6840 });
6841 }
6842
6843 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6844 self.end_selection(cx);
6845 self.selection_history.mode = SelectionHistoryMode::Undoing;
6846 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6847 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6848 self.select_next_state = entry.select_next_state;
6849 self.select_prev_state = entry.select_prev_state;
6850 self.add_selections_state = entry.add_selections_state;
6851 self.request_autoscroll(Autoscroll::newest(), cx);
6852 }
6853 self.selection_history.mode = SelectionHistoryMode::Normal;
6854 }
6855
6856 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6857 self.end_selection(cx);
6858 self.selection_history.mode = SelectionHistoryMode::Redoing;
6859 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6860 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6861 self.select_next_state = entry.select_next_state;
6862 self.select_prev_state = entry.select_prev_state;
6863 self.add_selections_state = entry.add_selections_state;
6864 self.request_autoscroll(Autoscroll::newest(), cx);
6865 }
6866 self.selection_history.mode = SelectionHistoryMode::Normal;
6867 }
6868
6869 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6870 self.go_to_diagnostic_impl(Direction::Next, cx)
6871 }
6872
6873 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6874 self.go_to_diagnostic_impl(Direction::Prev, cx)
6875 }
6876
6877 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6878 let buffer = self.buffer.read(cx).snapshot(cx);
6879 let selection = self.selections.newest::<usize>(cx);
6880
6881 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6882 if direction == Direction::Next {
6883 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6884 let (group_id, jump_to) = popover.activation_info();
6885 if self.activate_diagnostics(group_id, cx) {
6886 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6887 let mut new_selection = s.newest_anchor().clone();
6888 new_selection.collapse_to(jump_to, SelectionGoal::None);
6889 s.select_anchors(vec![new_selection.clone()]);
6890 });
6891 }
6892 return;
6893 }
6894 }
6895
6896 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6897 active_diagnostics
6898 .primary_range
6899 .to_offset(&buffer)
6900 .to_inclusive()
6901 });
6902 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6903 if active_primary_range.contains(&selection.head()) {
6904 *active_primary_range.end()
6905 } else {
6906 selection.head()
6907 }
6908 } else {
6909 selection.head()
6910 };
6911
6912 loop {
6913 let mut diagnostics = if direction == Direction::Prev {
6914 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6915 } else {
6916 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6917 };
6918 let group = diagnostics.find_map(|entry| {
6919 if entry.diagnostic.is_primary
6920 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6921 && !entry.range.is_empty()
6922 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6923 && !entry.range.contains(&search_start)
6924 {
6925 Some((entry.range, entry.diagnostic.group_id))
6926 } else {
6927 None
6928 }
6929 });
6930
6931 if let Some((primary_range, group_id)) = group {
6932 if self.activate_diagnostics(group_id, cx) {
6933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6934 s.select(vec![Selection {
6935 id: selection.id,
6936 start: primary_range.start,
6937 end: primary_range.start,
6938 reversed: false,
6939 goal: SelectionGoal::None,
6940 }]);
6941 });
6942 }
6943 break;
6944 } else {
6945 // Cycle around to the start of the buffer, potentially moving back to the start of
6946 // the currently active diagnostic.
6947 active_primary_range.take();
6948 if direction == Direction::Prev {
6949 if search_start == buffer.len() {
6950 break;
6951 } else {
6952 search_start = buffer.len();
6953 }
6954 } else if search_start == 0 {
6955 break;
6956 } else {
6957 search_start = 0;
6958 }
6959 }
6960 }
6961 }
6962
6963 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
6964 let snapshot = self
6965 .display_map
6966 .update(cx, |display_map, cx| display_map.snapshot(cx));
6967 let selection = self.selections.newest::<Point>(cx);
6968
6969 if !self.seek_in_direction(
6970 &snapshot,
6971 selection.head(),
6972 false,
6973 snapshot
6974 .buffer_snapshot
6975 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
6976 cx,
6977 ) {
6978 let wrapped_point = Point::zero();
6979 self.seek_in_direction(
6980 &snapshot,
6981 wrapped_point,
6982 true,
6983 snapshot
6984 .buffer_snapshot
6985 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
6986 cx,
6987 );
6988 }
6989 }
6990
6991 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
6992 let snapshot = self
6993 .display_map
6994 .update(cx, |display_map, cx| display_map.snapshot(cx));
6995 let selection = self.selections.newest::<Point>(cx);
6996
6997 if !self.seek_in_direction(
6998 &snapshot,
6999 selection.head(),
7000 false,
7001 snapshot
7002 .buffer_snapshot
7003 .git_diff_hunks_in_range_rev(0..selection.head().row),
7004 cx,
7005 ) {
7006 let wrapped_point = snapshot.buffer_snapshot.max_point();
7007 self.seek_in_direction(
7008 &snapshot,
7009 wrapped_point,
7010 true,
7011 snapshot
7012 .buffer_snapshot
7013 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7014 cx,
7015 );
7016 }
7017 }
7018
7019 fn seek_in_direction(
7020 &mut self,
7021 snapshot: &DisplaySnapshot,
7022 initial_point: Point,
7023 is_wrapped: bool,
7024 hunks: impl Iterator<Item = DiffHunk<u32>>,
7025 cx: &mut ViewContext<Editor>,
7026 ) -> bool {
7027 let display_point = initial_point.to_display_point(snapshot);
7028 let mut hunks = hunks
7029 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7030 .filter(|hunk| {
7031 if is_wrapped {
7032 true
7033 } else {
7034 !hunk.contains_display_row(display_point.row())
7035 }
7036 })
7037 .dedup();
7038
7039 if let Some(hunk) = hunks.next() {
7040 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7041 let row = hunk.start_display_row();
7042 let point = DisplayPoint::new(row, 0);
7043 s.select_display_ranges([point..point]);
7044 });
7045
7046 true
7047 } else {
7048 false
7049 }
7050 }
7051
7052 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7053 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7054 }
7055
7056 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7057 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7058 }
7059
7060 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7061 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7062 }
7063
7064 pub fn go_to_type_definition_split(
7065 &mut self,
7066 _: &GoToTypeDefinitionSplit,
7067 cx: &mut ViewContext<Self>,
7068 ) {
7069 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7070 }
7071
7072 fn go_to_definition_of_kind(
7073 &mut self,
7074 kind: GotoDefinitionKind,
7075 split: bool,
7076 cx: &mut ViewContext<Self>,
7077 ) {
7078 let Some(workspace) = self.workspace() else {
7079 return;
7080 };
7081 let buffer = self.buffer.read(cx);
7082 let head = self.selections.newest::<usize>(cx).head();
7083 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7084 text_anchor
7085 } else {
7086 return;
7087 };
7088
7089 let project = workspace.read(cx).project().clone();
7090 let definitions = project.update(cx, |project, cx| match kind {
7091 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7092 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7093 });
7094
7095 cx.spawn(|editor, mut cx| async move {
7096 let definitions = definitions.await?;
7097 editor.update(&mut cx, |editor, cx| {
7098 editor.navigate_to_definitions(
7099 definitions
7100 .into_iter()
7101 .map(GoToDefinitionLink::Text)
7102 .collect(),
7103 split,
7104 cx,
7105 );
7106 })?;
7107 Ok::<(), anyhow::Error>(())
7108 })
7109 .detach_and_log_err(cx);
7110 }
7111
7112 pub fn navigate_to_definitions(
7113 &mut self,
7114 mut definitions: Vec<GoToDefinitionLink>,
7115 split: bool,
7116 cx: &mut ViewContext<Editor>,
7117 ) {
7118 let Some(workspace) = self.workspace() else {
7119 return;
7120 };
7121 let pane = workspace.read(cx).active_pane().clone();
7122 // If there is one definition, just open it directly
7123 if definitions.len() == 1 {
7124 let definition = definitions.pop().unwrap();
7125 let target_task = match definition {
7126 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7127 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7128 self.compute_target_location(lsp_location, server_id, cx)
7129 }
7130 };
7131 cx.spawn(|editor, mut cx| async move {
7132 let target = target_task.await.context("target resolution task")?;
7133 if let Some(target) = target {
7134 editor.update(&mut cx, |editor, cx| {
7135 let range = target.range.to_offset(target.buffer.read(cx));
7136 let range = editor.range_for_match(&range);
7137 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7138 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7139 s.select_ranges([range]);
7140 });
7141 } else {
7142 cx.window_context().defer(move |cx| {
7143 let target_editor: View<Self> =
7144 workspace.update(cx, |workspace, cx| {
7145 if split {
7146 workspace.split_project_item(target.buffer.clone(), cx)
7147 } else {
7148 workspace.open_project_item(target.buffer.clone(), cx)
7149 }
7150 });
7151 target_editor.update(cx, |target_editor, cx| {
7152 // When selecting a definition in a different buffer, disable the nav history
7153 // to avoid creating a history entry at the previous cursor location.
7154 pane.update(cx, |pane, _| pane.disable_history());
7155 target_editor.change_selections(
7156 Some(Autoscroll::fit()),
7157 cx,
7158 |s| {
7159 s.select_ranges([range]);
7160 },
7161 );
7162 pane.update(cx, |pane, _| pane.enable_history());
7163 });
7164 });
7165 }
7166 })
7167 } else {
7168 Ok(())
7169 }
7170 })
7171 .detach_and_log_err(cx);
7172 } else if !definitions.is_empty() {
7173 let replica_id = self.replica_id(cx);
7174 cx.spawn(|editor, mut cx| async move {
7175 let (title, location_tasks) = editor
7176 .update(&mut cx, |editor, cx| {
7177 let title = definitions
7178 .iter()
7179 .find_map(|definition| match definition {
7180 GoToDefinitionLink::Text(link) => {
7181 link.origin.as_ref().map(|origin| {
7182 let buffer = origin.buffer.read(cx);
7183 format!(
7184 "Definitions for {}",
7185 buffer
7186 .text_for_range(origin.range.clone())
7187 .collect::<String>()
7188 )
7189 })
7190 }
7191 GoToDefinitionLink::InlayHint(_, _) => None,
7192 })
7193 .unwrap_or("Definitions".to_string());
7194 let location_tasks = definitions
7195 .into_iter()
7196 .map(|definition| match definition {
7197 GoToDefinitionLink::Text(link) => {
7198 Task::Ready(Some(Ok(Some(link.target))))
7199 }
7200 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7201 editor.compute_target_location(lsp_location, server_id, cx)
7202 }
7203 })
7204 .collect::<Vec<_>>();
7205 (title, location_tasks)
7206 })
7207 .context("location tasks preparation")?;
7208
7209 let locations = futures::future::join_all(location_tasks)
7210 .await
7211 .into_iter()
7212 .filter_map(|location| location.transpose())
7213 .collect::<Result<_>>()
7214 .context("location tasks")?;
7215 workspace
7216 .update(&mut cx, |workspace, cx| {
7217 Self::open_locations_in_multibuffer(
7218 workspace, locations, replica_id, title, split, cx,
7219 )
7220 })
7221 .ok();
7222
7223 anyhow::Ok(())
7224 })
7225 .detach_and_log_err(cx);
7226 }
7227 }
7228
7229 fn compute_target_location(
7230 &self,
7231 lsp_location: lsp::Location,
7232 server_id: LanguageServerId,
7233 cx: &mut ViewContext<Editor>,
7234 ) -> Task<anyhow::Result<Option<Location>>> {
7235 let Some(project) = self.project.clone() else {
7236 return Task::Ready(Some(Ok(None)));
7237 };
7238
7239 cx.spawn(move |editor, mut cx| async move {
7240 let location_task = editor.update(&mut cx, |editor, cx| {
7241 project.update(cx, |project, cx| {
7242 let language_server_name =
7243 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7244 project
7245 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7246 .map(|(_, lsp_adapter)| {
7247 LanguageServerName(Arc::from(lsp_adapter.name()))
7248 })
7249 });
7250 language_server_name.map(|language_server_name| {
7251 project.open_local_buffer_via_lsp(
7252 lsp_location.uri.clone(),
7253 server_id,
7254 language_server_name,
7255 cx,
7256 )
7257 })
7258 })
7259 })?;
7260 let location = match location_task {
7261 Some(task) => Some({
7262 let target_buffer_handle = task.await.context("open local buffer")?;
7263 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7264 let target_start = target_buffer
7265 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7266 let target_end = target_buffer
7267 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7268 target_buffer.anchor_after(target_start)
7269 ..target_buffer.anchor_before(target_end)
7270 })?;
7271 Location {
7272 buffer: target_buffer_handle,
7273 range,
7274 }
7275 }),
7276 None => None,
7277 };
7278 Ok(location)
7279 })
7280 }
7281
7282 pub fn find_all_references(
7283 &mut self,
7284 _: &FindAllReferences,
7285 cx: &mut ViewContext<Self>,
7286 ) -> Option<Task<Result<()>>> {
7287 let buffer = self.buffer.read(cx);
7288 let head = self.selections.newest::<usize>(cx).head();
7289 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7290 let replica_id = self.replica_id(cx);
7291
7292 let workspace = self.workspace()?;
7293 let project = workspace.read(cx).project().clone();
7294 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7295 Some(cx.spawn(|_, mut cx| async move {
7296 let locations = references.await?;
7297 if locations.is_empty() {
7298 return Ok(());
7299 }
7300
7301 workspace.update(&mut cx, |workspace, cx| {
7302 let title = locations
7303 .first()
7304 .as_ref()
7305 .map(|location| {
7306 let buffer = location.buffer.read(cx);
7307 format!(
7308 "References to `{}`",
7309 buffer
7310 .text_for_range(location.range.clone())
7311 .collect::<String>()
7312 )
7313 })
7314 .unwrap();
7315 Self::open_locations_in_multibuffer(
7316 workspace, locations, replica_id, title, false, cx,
7317 );
7318 })?;
7319
7320 Ok(())
7321 }))
7322 }
7323
7324 /// Opens a multibuffer with the given project locations in it
7325 pub fn open_locations_in_multibuffer(
7326 workspace: &mut Workspace,
7327 mut locations: Vec<Location>,
7328 replica_id: ReplicaId,
7329 title: String,
7330 split: bool,
7331 cx: &mut ViewContext<Workspace>,
7332 ) {
7333 // If there are multiple definitions, open them in a multibuffer
7334 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7335 let mut locations = locations.into_iter().peekable();
7336 let mut ranges_to_highlight = Vec::new();
7337 let capability = workspace.project().read(cx).capability();
7338
7339 let excerpt_buffer = cx.new_model(|cx| {
7340 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7341 while let Some(location) = locations.next() {
7342 let buffer = location.buffer.read(cx);
7343 let mut ranges_for_buffer = Vec::new();
7344 let range = location.range.to_offset(buffer);
7345 ranges_for_buffer.push(range.clone());
7346
7347 while let Some(next_location) = locations.peek() {
7348 if next_location.buffer == location.buffer {
7349 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7350 locations.next();
7351 } else {
7352 break;
7353 }
7354 }
7355
7356 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7357 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7358 location.buffer.clone(),
7359 ranges_for_buffer,
7360 1,
7361 cx,
7362 ))
7363 }
7364
7365 multibuffer.with_title(title)
7366 });
7367
7368 let editor = cx.new_view(|cx| {
7369 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7370 });
7371 editor.update(cx, |editor, cx| {
7372 editor.highlight_background::<Self>(
7373 ranges_to_highlight,
7374 |theme| theme.editor_highlighted_line_background,
7375 cx,
7376 );
7377 });
7378 if split {
7379 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7380 } else {
7381 workspace.add_item(Box::new(editor), cx);
7382 }
7383 }
7384
7385 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7386 use language::ToOffset as _;
7387
7388 let project = self.project.clone()?;
7389 let selection = self.selections.newest_anchor().clone();
7390 let (cursor_buffer, cursor_buffer_position) = self
7391 .buffer
7392 .read(cx)
7393 .text_anchor_for_position(selection.head(), cx)?;
7394 let (tail_buffer, _) = self
7395 .buffer
7396 .read(cx)
7397 .text_anchor_for_position(selection.tail(), cx)?;
7398 if tail_buffer != cursor_buffer {
7399 return None;
7400 }
7401
7402 let snapshot = cursor_buffer.read(cx).snapshot();
7403 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7404 let prepare_rename = project.update(cx, |project, cx| {
7405 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7406 });
7407
7408 Some(cx.spawn(|this, mut cx| async move {
7409 let rename_range = if let Some(range) = prepare_rename.await? {
7410 Some(range)
7411 } else {
7412 this.update(&mut cx, |this, cx| {
7413 let buffer = this.buffer.read(cx).snapshot(cx);
7414 let mut buffer_highlights = this
7415 .document_highlights_for_position(selection.head(), &buffer)
7416 .filter(|highlight| {
7417 highlight.start.excerpt_id == selection.head().excerpt_id
7418 && highlight.end.excerpt_id == selection.head().excerpt_id
7419 });
7420 buffer_highlights
7421 .next()
7422 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7423 })?
7424 };
7425 if let Some(rename_range) = rename_range {
7426 let rename_buffer_range = rename_range.to_offset(&snapshot);
7427 let cursor_offset_in_rename_range =
7428 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7429
7430 this.update(&mut cx, |this, cx| {
7431 this.take_rename(false, cx);
7432 let buffer = this.buffer.read(cx).read(cx);
7433 let cursor_offset = selection.head().to_offset(&buffer);
7434 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7435 let rename_end = rename_start + rename_buffer_range.len();
7436 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7437 let mut old_highlight_id = None;
7438 let old_name: Arc<str> = buffer
7439 .chunks(rename_start..rename_end, true)
7440 .map(|chunk| {
7441 if old_highlight_id.is_none() {
7442 old_highlight_id = chunk.syntax_highlight_id;
7443 }
7444 chunk.text
7445 })
7446 .collect::<String>()
7447 .into();
7448
7449 drop(buffer);
7450
7451 // Position the selection in the rename editor so that it matches the current selection.
7452 this.show_local_selections = false;
7453 let rename_editor = cx.new_view(|cx| {
7454 let mut editor = Editor::single_line(cx);
7455 editor.buffer.update(cx, |buffer, cx| {
7456 buffer.edit([(0..0, old_name.clone())], None, cx)
7457 });
7458 editor.select_all(&SelectAll, cx);
7459 editor
7460 });
7461
7462 let ranges = this
7463 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7464 .into_iter()
7465 .flat_map(|(_, ranges)| ranges.into_iter())
7466 .chain(
7467 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7468 .into_iter()
7469 .flat_map(|(_, ranges)| ranges.into_iter()),
7470 )
7471 .collect();
7472
7473 this.highlight_text::<Rename>(
7474 ranges,
7475 HighlightStyle {
7476 fade_out: Some(0.6),
7477 ..Default::default()
7478 },
7479 cx,
7480 );
7481 let rename_focus_handle = rename_editor.focus_handle(cx);
7482 cx.focus(&rename_focus_handle);
7483 let block_id = this.insert_blocks(
7484 [BlockProperties {
7485 style: BlockStyle::Flex,
7486 position: range.start.clone(),
7487 height: 1,
7488 render: Arc::new({
7489 let rename_editor = rename_editor.clone();
7490 move |cx: &mut BlockContext| {
7491 let mut text_style = cx.editor_style.text.clone();
7492 if let Some(highlight_style) = old_highlight_id
7493 .and_then(|h| h.style(&cx.editor_style.syntax))
7494 {
7495 text_style = text_style.highlight(highlight_style);
7496 }
7497 div()
7498 .pl(cx.anchor_x)
7499 .child(EditorElement::new(
7500 &rename_editor,
7501 EditorStyle {
7502 background: cx.theme().system().transparent,
7503 local_player: cx.editor_style.local_player,
7504 text: text_style,
7505 scrollbar_width: cx.editor_style.scrollbar_width,
7506 syntax: cx.editor_style.syntax.clone(),
7507 status: cx.editor_style.status.clone(),
7508 inlays_style: HighlightStyle {
7509 color: Some(cx.theme().status().hint),
7510 font_weight: Some(FontWeight::BOLD),
7511 ..HighlightStyle::default()
7512 },
7513 suggestions_style: HighlightStyle {
7514 color: Some(cx.theme().status().predictive),
7515 ..HighlightStyle::default()
7516 },
7517 },
7518 ))
7519 .into_any_element()
7520 }
7521 }),
7522 disposition: BlockDisposition::Below,
7523 }],
7524 Some(Autoscroll::fit()),
7525 cx,
7526 )[0];
7527 this.pending_rename = Some(RenameState {
7528 range,
7529 old_name,
7530 editor: rename_editor,
7531 block_id,
7532 });
7533 })?;
7534 }
7535
7536 Ok(())
7537 }))
7538 }
7539
7540 pub fn confirm_rename(
7541 &mut self,
7542 _: &ConfirmRename,
7543 cx: &mut ViewContext<Self>,
7544 ) -> Option<Task<Result<()>>> {
7545 let rename = self.take_rename(false, cx)?;
7546 let workspace = self.workspace()?;
7547 let (start_buffer, start) = self
7548 .buffer
7549 .read(cx)
7550 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7551 let (end_buffer, end) = self
7552 .buffer
7553 .read(cx)
7554 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7555 if start_buffer != end_buffer {
7556 return None;
7557 }
7558
7559 let buffer = start_buffer;
7560 let range = start..end;
7561 let old_name = rename.old_name;
7562 let new_name = rename.editor.read(cx).text(cx);
7563
7564 let rename = workspace
7565 .read(cx)
7566 .project()
7567 .clone()
7568 .update(cx, |project, cx| {
7569 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7570 });
7571 let workspace = workspace.downgrade();
7572
7573 Some(cx.spawn(|editor, mut cx| async move {
7574 let project_transaction = rename.await?;
7575 Self::open_project_transaction(
7576 &editor,
7577 workspace,
7578 project_transaction,
7579 format!("Rename: {} → {}", old_name, new_name),
7580 cx.clone(),
7581 )
7582 .await?;
7583
7584 editor.update(&mut cx, |editor, cx| {
7585 editor.refresh_document_highlights(cx);
7586 })?;
7587 Ok(())
7588 }))
7589 }
7590
7591 fn take_rename(
7592 &mut self,
7593 moving_cursor: bool,
7594 cx: &mut ViewContext<Self>,
7595 ) -> Option<RenameState> {
7596 let rename = self.pending_rename.take()?;
7597 if rename.editor.focus_handle(cx).is_focused(cx) {
7598 cx.focus(&self.focus_handle);
7599 }
7600
7601 self.remove_blocks(
7602 [rename.block_id].into_iter().collect(),
7603 Some(Autoscroll::fit()),
7604 cx,
7605 );
7606 self.clear_highlights::<Rename>(cx);
7607 self.show_local_selections = true;
7608
7609 if moving_cursor {
7610 let rename_editor = rename.editor.read(cx);
7611 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7612
7613 // Update the selection to match the position of the selection inside
7614 // the rename editor.
7615 let snapshot = self.buffer.read(cx).read(cx);
7616 let rename_range = rename.range.to_offset(&snapshot);
7617 let cursor_in_editor = snapshot
7618 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7619 .min(rename_range.end);
7620 drop(snapshot);
7621
7622 self.change_selections(None, cx, |s| {
7623 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7624 });
7625 } else {
7626 self.refresh_document_highlights(cx);
7627 }
7628
7629 Some(rename)
7630 }
7631
7632 #[cfg(any(test, feature = "test-support"))]
7633 pub fn pending_rename(&self) -> Option<&RenameState> {
7634 self.pending_rename.as_ref()
7635 }
7636
7637 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7638 let project = match &self.project {
7639 Some(project) => project.clone(),
7640 None => return None,
7641 };
7642
7643 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7644 }
7645
7646 fn perform_format(
7647 &mut self,
7648 project: Model<Project>,
7649 trigger: FormatTrigger,
7650 cx: &mut ViewContext<Self>,
7651 ) -> Task<Result<()>> {
7652 let buffer = self.buffer().clone();
7653 let buffers = buffer.read(cx).all_buffers();
7654
7655 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7656 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7657
7658 cx.spawn(|_, mut cx| async move {
7659 let transaction = futures::select_biased! {
7660 _ = timeout => {
7661 log::warn!("timed out waiting for formatting");
7662 None
7663 }
7664 transaction = format.log_err().fuse() => transaction,
7665 };
7666
7667 buffer
7668 .update(&mut cx, |buffer, cx| {
7669 if let Some(transaction) = transaction {
7670 if !buffer.is_singleton() {
7671 buffer.push_transaction(&transaction.0, cx);
7672 }
7673 }
7674
7675 cx.notify();
7676 })
7677 .ok();
7678
7679 Ok(())
7680 })
7681 }
7682
7683 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7684 if let Some(project) = self.project.clone() {
7685 self.buffer.update(cx, |multi_buffer, cx| {
7686 project.update(cx, |project, cx| {
7687 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7688 });
7689 })
7690 }
7691 }
7692
7693 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7694 cx.show_character_palette();
7695 }
7696
7697 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7698 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7699 let buffer = self.buffer.read(cx).snapshot(cx);
7700 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7701 let is_valid = buffer
7702 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7703 .any(|entry| {
7704 entry.diagnostic.is_primary
7705 && !entry.range.is_empty()
7706 && entry.range.start == primary_range_start
7707 && entry.diagnostic.message == active_diagnostics.primary_message
7708 });
7709
7710 if is_valid != active_diagnostics.is_valid {
7711 active_diagnostics.is_valid = is_valid;
7712 let mut new_styles = HashMap::default();
7713 for (block_id, diagnostic) in &active_diagnostics.blocks {
7714 new_styles.insert(
7715 *block_id,
7716 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7717 );
7718 }
7719 self.display_map
7720 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7721 }
7722 }
7723 }
7724
7725 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7726 self.dismiss_diagnostics(cx);
7727 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7728 let buffer = self.buffer.read(cx).snapshot(cx);
7729
7730 let mut primary_range = None;
7731 let mut primary_message = None;
7732 let mut group_end = Point::zero();
7733 let diagnostic_group = buffer
7734 .diagnostic_group::<Point>(group_id)
7735 .map(|entry| {
7736 if entry.range.end > group_end {
7737 group_end = entry.range.end;
7738 }
7739 if entry.diagnostic.is_primary {
7740 primary_range = Some(entry.range.clone());
7741 primary_message = Some(entry.diagnostic.message.clone());
7742 }
7743 entry
7744 })
7745 .collect::<Vec<_>>();
7746 let primary_range = primary_range?;
7747 let primary_message = primary_message?;
7748 let primary_range =
7749 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7750
7751 let blocks = display_map
7752 .insert_blocks(
7753 diagnostic_group.iter().map(|entry| {
7754 let diagnostic = entry.diagnostic.clone();
7755 let message_height = diagnostic.message.lines().count() as u8;
7756 BlockProperties {
7757 style: BlockStyle::Fixed,
7758 position: buffer.anchor_after(entry.range.start),
7759 height: message_height,
7760 render: diagnostic_block_renderer(diagnostic, true),
7761 disposition: BlockDisposition::Below,
7762 }
7763 }),
7764 cx,
7765 )
7766 .into_iter()
7767 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7768 .collect();
7769
7770 Some(ActiveDiagnosticGroup {
7771 primary_range,
7772 primary_message,
7773 blocks,
7774 is_valid: true,
7775 })
7776 });
7777 self.active_diagnostics.is_some()
7778 }
7779
7780 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7781 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7782 self.display_map.update(cx, |display_map, cx| {
7783 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7784 });
7785 cx.notify();
7786 }
7787 }
7788
7789 pub fn set_selections_from_remote(
7790 &mut self,
7791 selections: Vec<Selection<Anchor>>,
7792 pending_selection: Option<Selection<Anchor>>,
7793 cx: &mut ViewContext<Self>,
7794 ) {
7795 let old_cursor_position = self.selections.newest_anchor().head();
7796 self.selections.change_with(cx, |s| {
7797 s.select_anchors(selections);
7798 if let Some(pending_selection) = pending_selection {
7799 s.set_pending(pending_selection, SelectMode::Character);
7800 } else {
7801 s.clear_pending();
7802 }
7803 });
7804 self.selections_did_change(false, &old_cursor_position, cx);
7805 }
7806
7807 fn push_to_selection_history(&mut self) {
7808 self.selection_history.push(SelectionHistoryEntry {
7809 selections: self.selections.disjoint_anchors(),
7810 select_next_state: self.select_next_state.clone(),
7811 select_prev_state: self.select_prev_state.clone(),
7812 add_selections_state: self.add_selections_state.clone(),
7813 });
7814 }
7815
7816 pub fn transact(
7817 &mut self,
7818 cx: &mut ViewContext<Self>,
7819 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7820 ) -> Option<TransactionId> {
7821 self.start_transaction_at(Instant::now(), cx);
7822 update(self, cx);
7823 self.end_transaction_at(Instant::now(), cx)
7824 }
7825
7826 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7827 self.end_selection(cx);
7828 if let Some(tx_id) = self
7829 .buffer
7830 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7831 {
7832 self.selection_history
7833 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7834 }
7835 }
7836
7837 fn end_transaction_at(
7838 &mut self,
7839 now: Instant,
7840 cx: &mut ViewContext<Self>,
7841 ) -> Option<TransactionId> {
7842 if let Some(tx_id) = self
7843 .buffer
7844 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7845 {
7846 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7847 *end_selections = Some(self.selections.disjoint_anchors());
7848 } else {
7849 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7850 }
7851
7852 cx.emit(EditorEvent::Edited);
7853 Some(tx_id)
7854 } else {
7855 None
7856 }
7857 }
7858
7859 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7860 let mut fold_ranges = Vec::new();
7861
7862 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7863
7864 let selections = self.selections.all_adjusted(cx);
7865 for selection in selections {
7866 let range = selection.range().sorted();
7867 let buffer_start_row = range.start.row;
7868
7869 for row in (0..=range.end.row).rev() {
7870 let fold_range = display_map.foldable_range(row);
7871
7872 if let Some(fold_range) = fold_range {
7873 if fold_range.end.row >= buffer_start_row {
7874 fold_ranges.push(fold_range);
7875 if row <= range.start.row {
7876 break;
7877 }
7878 }
7879 }
7880 }
7881 }
7882
7883 self.fold_ranges(fold_ranges, true, cx);
7884 }
7885
7886 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7887 let buffer_row = fold_at.buffer_row;
7888 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7889
7890 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7891 let autoscroll = self
7892 .selections
7893 .all::<Point>(cx)
7894 .iter()
7895 .any(|selection| fold_range.overlaps(&selection.range()));
7896
7897 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7898 }
7899 }
7900
7901 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7902 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7903 let buffer = &display_map.buffer_snapshot;
7904 let selections = self.selections.all::<Point>(cx);
7905 let ranges = selections
7906 .iter()
7907 .map(|s| {
7908 let range = s.display_range(&display_map).sorted();
7909 let mut start = range.start.to_point(&display_map);
7910 let mut end = range.end.to_point(&display_map);
7911 start.column = 0;
7912 end.column = buffer.line_len(end.row);
7913 start..end
7914 })
7915 .collect::<Vec<_>>();
7916
7917 self.unfold_ranges(ranges, true, true, cx);
7918 }
7919
7920 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7921 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7922
7923 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7924 ..Point::new(
7925 unfold_at.buffer_row,
7926 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7927 );
7928
7929 let autoscroll = self
7930 .selections
7931 .all::<Point>(cx)
7932 .iter()
7933 .any(|selection| selection.range().overlaps(&intersection_range));
7934
7935 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
7936 }
7937
7938 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
7939 let selections = self.selections.all::<Point>(cx);
7940 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7941 let line_mode = self.selections.line_mode;
7942 let ranges = selections.into_iter().map(|s| {
7943 if line_mode {
7944 let start = Point::new(s.start.row, 0);
7945 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
7946 start..end
7947 } else {
7948 s.start..s.end
7949 }
7950 });
7951 self.fold_ranges(ranges, true, cx);
7952 }
7953
7954 pub fn fold_ranges<T: ToOffset + Clone>(
7955 &mut self,
7956 ranges: impl IntoIterator<Item = Range<T>>,
7957 auto_scroll: bool,
7958 cx: &mut ViewContext<Self>,
7959 ) {
7960 let mut ranges = ranges.into_iter().peekable();
7961 if ranges.peek().is_some() {
7962 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
7963
7964 if auto_scroll {
7965 self.request_autoscroll(Autoscroll::fit(), cx);
7966 }
7967
7968 cx.notify();
7969 }
7970 }
7971
7972 pub fn unfold_ranges<T: ToOffset + Clone>(
7973 &mut self,
7974 ranges: impl IntoIterator<Item = Range<T>>,
7975 inclusive: bool,
7976 auto_scroll: bool,
7977 cx: &mut ViewContext<Self>,
7978 ) {
7979 let mut ranges = ranges.into_iter().peekable();
7980 if ranges.peek().is_some() {
7981 self.display_map
7982 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
7983 if auto_scroll {
7984 self.request_autoscroll(Autoscroll::fit(), cx);
7985 }
7986
7987 cx.notify();
7988 }
7989 }
7990
7991 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
7992 if hovered != self.gutter_hovered {
7993 self.gutter_hovered = hovered;
7994 cx.notify();
7995 }
7996 }
7997
7998 pub fn insert_blocks(
7999 &mut self,
8000 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8001 autoscroll: Option<Autoscroll>,
8002 cx: &mut ViewContext<Self>,
8003 ) -> Vec<BlockId> {
8004 let blocks = self
8005 .display_map
8006 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8007 if let Some(autoscroll) = autoscroll {
8008 self.request_autoscroll(autoscroll, cx);
8009 }
8010 blocks
8011 }
8012
8013 pub fn replace_blocks(
8014 &mut self,
8015 blocks: HashMap<BlockId, RenderBlock>,
8016 autoscroll: Option<Autoscroll>,
8017 cx: &mut ViewContext<Self>,
8018 ) {
8019 self.display_map
8020 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8021 if let Some(autoscroll) = autoscroll {
8022 self.request_autoscroll(autoscroll, cx);
8023 }
8024 }
8025
8026 pub fn remove_blocks(
8027 &mut self,
8028 block_ids: HashSet<BlockId>,
8029 autoscroll: Option<Autoscroll>,
8030 cx: &mut ViewContext<Self>,
8031 ) {
8032 self.display_map.update(cx, |display_map, cx| {
8033 display_map.remove_blocks(block_ids, cx)
8034 });
8035 if let Some(autoscroll) = autoscroll {
8036 self.request_autoscroll(autoscroll, cx);
8037 }
8038 }
8039
8040 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8041 self.display_map
8042 .update(cx, |map, cx| map.snapshot(cx))
8043 .longest_row()
8044 }
8045
8046 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8047 self.display_map
8048 .update(cx, |map, cx| map.snapshot(cx))
8049 .max_point()
8050 }
8051
8052 pub fn text(&self, cx: &AppContext) -> String {
8053 self.buffer.read(cx).read(cx).text()
8054 }
8055
8056 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8057 let text = self.text(cx);
8058 let text = text.trim();
8059
8060 if text.is_empty() {
8061 return None;
8062 }
8063
8064 Some(text.to_string())
8065 }
8066
8067 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8068 self.transact(cx, |this, cx| {
8069 this.buffer
8070 .read(cx)
8071 .as_singleton()
8072 .expect("you can only call set_text on editors for singleton buffers")
8073 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8074 });
8075 }
8076
8077 pub fn display_text(&self, cx: &mut AppContext) -> String {
8078 self.display_map
8079 .update(cx, |map, cx| map.snapshot(cx))
8080 .text()
8081 }
8082
8083 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8084 let mut wrap_guides = smallvec::smallvec![];
8085
8086 if self.show_wrap_guides == Some(false) {
8087 return wrap_guides;
8088 }
8089
8090 let settings = self.buffer.read(cx).settings_at(0, cx);
8091 if settings.show_wrap_guides {
8092 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8093 wrap_guides.push((soft_wrap as usize, true));
8094 }
8095 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8096 }
8097
8098 wrap_guides
8099 }
8100
8101 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8102 let settings = self.buffer.read(cx).settings_at(0, cx);
8103 let mode = self
8104 .soft_wrap_mode_override
8105 .unwrap_or_else(|| settings.soft_wrap);
8106 match mode {
8107 language_settings::SoftWrap::None => SoftWrap::None,
8108 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8109 language_settings::SoftWrap::PreferredLineLength => {
8110 SoftWrap::Column(settings.preferred_line_length)
8111 }
8112 }
8113 }
8114
8115 pub fn set_soft_wrap_mode(
8116 &mut self,
8117 mode: language_settings::SoftWrap,
8118 cx: &mut ViewContext<Self>,
8119 ) {
8120 self.soft_wrap_mode_override = Some(mode);
8121 cx.notify();
8122 }
8123
8124 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8125 let rem_size = cx.rem_size();
8126 self.display_map.update(cx, |map, cx| {
8127 map.set_font(
8128 style.text.font(),
8129 style.text.font_size.to_pixels(rem_size),
8130 cx,
8131 )
8132 });
8133 self.style = Some(style);
8134 }
8135
8136 #[cfg(any(test, feature = "test-support"))]
8137 pub fn style(&self) -> Option<&EditorStyle> {
8138 self.style.as_ref()
8139 }
8140
8141 // Called by the element. This method is not designed to be called outside of the editor
8142 // element's layout code because it does not notify when rewrapping is computed synchronously.
8143 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8144 self.display_map
8145 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8146 }
8147
8148 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8149 if self.soft_wrap_mode_override.is_some() {
8150 self.soft_wrap_mode_override.take();
8151 } else {
8152 let soft_wrap = match self.soft_wrap_mode(cx) {
8153 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8154 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8155 };
8156 self.soft_wrap_mode_override = Some(soft_wrap);
8157 }
8158 cx.notify();
8159 }
8160
8161 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8162 self.show_gutter = show_gutter;
8163 cx.notify();
8164 }
8165
8166 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8167 self.show_wrap_guides = Some(show_gutter);
8168 cx.notify();
8169 }
8170
8171 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8172 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8173 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8174 cx.reveal_path(&file.abs_path(cx));
8175 }
8176 }
8177 }
8178
8179 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8180 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8181 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8182 if let Some(path) = file.abs_path(cx).to_str() {
8183 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8184 }
8185 }
8186 }
8187 }
8188
8189 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, 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 if let Some(path) = file.path().to_str() {
8193 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8194 }
8195 }
8196 }
8197 }
8198
8199 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8200 self.highlighted_rows = rows;
8201 }
8202
8203 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8204 self.highlighted_rows.clone()
8205 }
8206
8207 pub fn highlight_background<T: 'static>(
8208 &mut self,
8209 ranges: Vec<Range<Anchor>>,
8210 color_fetcher: fn(&ThemeColors) -> Hsla,
8211 cx: &mut ViewContext<Self>,
8212 ) {
8213 self.background_highlights
8214 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8215 cx.notify();
8216 }
8217
8218 pub(crate) fn highlight_inlay_background<T: 'static>(
8219 &mut self,
8220 ranges: Vec<InlayHighlight>,
8221 color_fetcher: fn(&ThemeColors) -> Hsla,
8222 cx: &mut ViewContext<Self>,
8223 ) {
8224 // TODO: no actual highlights happen for inlays currently, find a way to do that
8225 self.inlay_background_highlights
8226 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8227 cx.notify();
8228 }
8229
8230 pub fn clear_background_highlights<T: 'static>(
8231 &mut self,
8232 cx: &mut ViewContext<Self>,
8233 ) -> Option<BackgroundHighlight> {
8234 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8235 let inlay_highlights = self
8236 .inlay_background_highlights
8237 .remove(&Some(TypeId::of::<T>()));
8238 if text_highlights.is_some() || inlay_highlights.is_some() {
8239 cx.notify();
8240 }
8241 text_highlights
8242 }
8243
8244 #[cfg(feature = "test-support")]
8245 pub fn all_text_background_highlights(
8246 &mut self,
8247 cx: &mut ViewContext<Self>,
8248 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8249 let snapshot = self.snapshot(cx);
8250 let buffer = &snapshot.buffer_snapshot;
8251 let start = buffer.anchor_before(0);
8252 let end = buffer.anchor_after(buffer.len());
8253 let theme = cx.theme().colors();
8254 self.background_highlights_in_range(start..end, &snapshot, theme)
8255 }
8256
8257 fn document_highlights_for_position<'a>(
8258 &'a self,
8259 position: Anchor,
8260 buffer: &'a MultiBufferSnapshot,
8261 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8262 let read_highlights = self
8263 .background_highlights
8264 .get(&TypeId::of::<DocumentHighlightRead>())
8265 .map(|h| &h.1);
8266 let write_highlights = self
8267 .background_highlights
8268 .get(&TypeId::of::<DocumentHighlightWrite>())
8269 .map(|h| &h.1);
8270 let left_position = position.bias_left(buffer);
8271 let right_position = position.bias_right(buffer);
8272 read_highlights
8273 .into_iter()
8274 .chain(write_highlights)
8275 .flat_map(move |ranges| {
8276 let start_ix = match ranges.binary_search_by(|probe| {
8277 let cmp = probe.end.cmp(&left_position, buffer);
8278 if cmp.is_ge() {
8279 Ordering::Greater
8280 } else {
8281 Ordering::Less
8282 }
8283 }) {
8284 Ok(i) | Err(i) => i,
8285 };
8286
8287 let right_position = right_position.clone();
8288 ranges[start_ix..]
8289 .iter()
8290 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8291 })
8292 }
8293
8294 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8295 self.background_highlights
8296 .get(&TypeId::of::<T>())
8297 .map_or(false, |(_, highlights)| !highlights.is_empty())
8298 }
8299
8300 pub fn background_highlights_in_range(
8301 &self,
8302 search_range: Range<Anchor>,
8303 display_snapshot: &DisplaySnapshot,
8304 theme: &ThemeColors,
8305 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8306 let mut results = Vec::new();
8307 for (color_fetcher, ranges) in self.background_highlights.values() {
8308 let color = color_fetcher(theme);
8309 let start_ix = match ranges.binary_search_by(|probe| {
8310 let cmp = probe
8311 .end
8312 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8313 if cmp.is_gt() {
8314 Ordering::Greater
8315 } else {
8316 Ordering::Less
8317 }
8318 }) {
8319 Ok(i) | Err(i) => i,
8320 };
8321 for range in &ranges[start_ix..] {
8322 if range
8323 .start
8324 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8325 .is_ge()
8326 {
8327 break;
8328 }
8329
8330 let start = range.start.to_display_point(&display_snapshot);
8331 let end = range.end.to_display_point(&display_snapshot);
8332 results.push((start..end, color))
8333 }
8334 }
8335 results
8336 }
8337
8338 pub fn background_highlight_row_ranges<T: 'static>(
8339 &self,
8340 search_range: Range<Anchor>,
8341 display_snapshot: &DisplaySnapshot,
8342 count: usize,
8343 ) -> Vec<RangeInclusive<DisplayPoint>> {
8344 let mut results = Vec::new();
8345 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8346 return vec![];
8347 };
8348
8349 let start_ix = match ranges.binary_search_by(|probe| {
8350 let cmp = probe
8351 .end
8352 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8353 if cmp.is_gt() {
8354 Ordering::Greater
8355 } else {
8356 Ordering::Less
8357 }
8358 }) {
8359 Ok(i) | Err(i) => i,
8360 };
8361 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8362 if let (Some(start_display), Some(end_display)) = (start, end) {
8363 results.push(
8364 start_display.to_display_point(display_snapshot)
8365 ..=end_display.to_display_point(display_snapshot),
8366 );
8367 }
8368 };
8369 let mut start_row: Option<Point> = None;
8370 let mut end_row: Option<Point> = None;
8371 if ranges.len() > count {
8372 return Vec::new();
8373 }
8374 for range in &ranges[start_ix..] {
8375 if range
8376 .start
8377 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8378 .is_ge()
8379 {
8380 break;
8381 }
8382 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8383 if let Some(current_row) = &end_row {
8384 if end.row == current_row.row {
8385 continue;
8386 }
8387 }
8388 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8389 if start_row.is_none() {
8390 assert_eq!(end_row, None);
8391 start_row = Some(start);
8392 end_row = Some(end);
8393 continue;
8394 }
8395 if let Some(current_end) = end_row.as_mut() {
8396 if start.row > current_end.row + 1 {
8397 push_region(start_row, end_row);
8398 start_row = Some(start);
8399 end_row = Some(end);
8400 } else {
8401 // Merge two hunks.
8402 *current_end = end;
8403 }
8404 } else {
8405 unreachable!();
8406 }
8407 }
8408 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8409 push_region(start_row, end_row);
8410 results
8411 }
8412
8413 pub fn highlight_text<T: 'static>(
8414 &mut self,
8415 ranges: Vec<Range<Anchor>>,
8416 style: HighlightStyle,
8417 cx: &mut ViewContext<Self>,
8418 ) {
8419 self.display_map.update(cx, |map, _| {
8420 map.highlight_text(TypeId::of::<T>(), ranges, style)
8421 });
8422 cx.notify();
8423 }
8424
8425 pub(crate) fn highlight_inlays<T: 'static>(
8426 &mut self,
8427 highlights: Vec<InlayHighlight>,
8428 style: HighlightStyle,
8429 cx: &mut ViewContext<Self>,
8430 ) {
8431 self.display_map.update(cx, |map, _| {
8432 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8433 });
8434 cx.notify();
8435 }
8436
8437 pub fn text_highlights<'a, T: 'static>(
8438 &'a self,
8439 cx: &'a AppContext,
8440 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8441 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8442 }
8443
8444 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8445 let cleared = self
8446 .display_map
8447 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8448 if cleared {
8449 cx.notify();
8450 }
8451 }
8452
8453 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8454 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8455 && self.focus_handle.is_focused(cx)
8456 }
8457
8458 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8459 cx.notify();
8460 }
8461
8462 fn on_buffer_event(
8463 &mut self,
8464 multibuffer: Model<MultiBuffer>,
8465 event: &multi_buffer::Event,
8466 cx: &mut ViewContext<Self>,
8467 ) {
8468 match event {
8469 multi_buffer::Event::Edited {
8470 singleton_buffer_edited,
8471 } => {
8472 self.refresh_active_diagnostics(cx);
8473 self.refresh_code_actions(cx);
8474 if self.has_active_copilot_suggestion(cx) {
8475 self.update_visible_copilot_suggestion(cx);
8476 }
8477 cx.emit(EditorEvent::BufferEdited);
8478 cx.emit(SearchEvent::MatchesInvalidated);
8479
8480 if *singleton_buffer_edited {
8481 if let Some(project) = &self.project {
8482 let project = project.read(cx);
8483 let languages_affected = multibuffer
8484 .read(cx)
8485 .all_buffers()
8486 .into_iter()
8487 .filter_map(|buffer| {
8488 let buffer = buffer.read(cx);
8489 let language = buffer.language()?;
8490 if project.is_local()
8491 && project.language_servers_for_buffer(buffer, cx).count() == 0
8492 {
8493 None
8494 } else {
8495 Some(language)
8496 }
8497 })
8498 .cloned()
8499 .collect::<HashSet<_>>();
8500 if !languages_affected.is_empty() {
8501 self.refresh_inlay_hints(
8502 InlayHintRefreshReason::BufferEdited(languages_affected),
8503 cx,
8504 );
8505 }
8506 }
8507 }
8508
8509 let Some(project) = &self.project else { return };
8510 let telemetry = project.read(cx).client().telemetry().clone();
8511 telemetry.log_edit_event("editor");
8512 }
8513 multi_buffer::Event::ExcerptsAdded {
8514 buffer,
8515 predecessor,
8516 excerpts,
8517 } => {
8518 cx.emit(EditorEvent::ExcerptsAdded {
8519 buffer: buffer.clone(),
8520 predecessor: *predecessor,
8521 excerpts: excerpts.clone(),
8522 });
8523 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8524 }
8525 multi_buffer::Event::ExcerptsRemoved { ids } => {
8526 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8527 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8528 }
8529 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8530 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8531 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8532 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8533 cx.emit(EditorEvent::TitleChanged)
8534 }
8535 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8536 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8537 multi_buffer::Event::DiagnosticsUpdated => {
8538 self.refresh_active_diagnostics(cx);
8539 }
8540 _ => {}
8541 };
8542 }
8543
8544 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8545 cx.notify();
8546 }
8547
8548 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8549 self.refresh_copilot_suggestions(true, cx);
8550 self.refresh_inlay_hints(
8551 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8552 self.selections.newest_anchor().head(),
8553 &self.buffer.read(cx).snapshot(cx),
8554 cx,
8555 )),
8556 cx,
8557 );
8558 cx.notify();
8559 }
8560
8561 pub fn set_searchable(&mut self, searchable: bool) {
8562 self.searchable = searchable;
8563 }
8564
8565 pub fn searchable(&self) -> bool {
8566 self.searchable
8567 }
8568
8569 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8570 let buffer = self.buffer.read(cx);
8571 if buffer.is_singleton() {
8572 cx.propagate();
8573 return;
8574 }
8575
8576 let Some(workspace) = self.workspace() else {
8577 cx.propagate();
8578 return;
8579 };
8580
8581 let mut new_selections_by_buffer = HashMap::default();
8582 for selection in self.selections.all::<usize>(cx) {
8583 for (buffer, mut range, _) in
8584 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8585 {
8586 if selection.reversed {
8587 mem::swap(&mut range.start, &mut range.end);
8588 }
8589 new_selections_by_buffer
8590 .entry(buffer)
8591 .or_insert(Vec::new())
8592 .push(range)
8593 }
8594 }
8595
8596 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8597
8598 // We defer the pane interaction because we ourselves are a workspace item
8599 // and activating a new item causes the pane to call a method on us reentrantly,
8600 // which panics if we're on the stack.
8601 cx.window_context().defer(move |cx| {
8602 workspace.update(cx, |workspace, cx| {
8603 let pane = workspace.active_pane().clone();
8604 pane.update(cx, |pane, _| pane.disable_history());
8605
8606 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8607 let editor = workspace.open_project_item::<Self>(buffer, cx);
8608 editor.update(cx, |editor, cx| {
8609 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8610 s.select_ranges(ranges);
8611 });
8612 });
8613 }
8614
8615 pane.update(cx, |pane, _| pane.enable_history());
8616 })
8617 });
8618 }
8619
8620 fn jump(
8621 &mut self,
8622 path: ProjectPath,
8623 position: Point,
8624 anchor: language::Anchor,
8625 cx: &mut ViewContext<Self>,
8626 ) {
8627 let workspace = self.workspace();
8628 cx.spawn(|_, mut cx| async move {
8629 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8630 let editor = workspace.update(&mut cx, |workspace, cx| {
8631 workspace.open_path(path, None, true, cx)
8632 })?;
8633 let editor = editor
8634 .await?
8635 .downcast::<Editor>()
8636 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8637 .downgrade();
8638 editor.update(&mut cx, |editor, cx| {
8639 let buffer = editor
8640 .buffer()
8641 .read(cx)
8642 .as_singleton()
8643 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8644 let buffer = buffer.read(cx);
8645 let cursor = if buffer.can_resolve(&anchor) {
8646 language::ToPoint::to_point(&anchor, buffer)
8647 } else {
8648 buffer.clip_point(position, Bias::Left)
8649 };
8650
8651 let nav_history = editor.nav_history.take();
8652 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8653 s.select_ranges([cursor..cursor]);
8654 });
8655 editor.nav_history = nav_history;
8656
8657 anyhow::Ok(())
8658 })??;
8659
8660 anyhow::Ok(())
8661 })
8662 .detach_and_log_err(cx);
8663 }
8664
8665 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8666 let snapshot = self.buffer.read(cx).read(cx);
8667 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8668 Some(
8669 ranges
8670 .iter()
8671 .map(move |range| {
8672 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8673 })
8674 .collect(),
8675 )
8676 }
8677
8678 fn selection_replacement_ranges(
8679 &self,
8680 range: Range<OffsetUtf16>,
8681 cx: &AppContext,
8682 ) -> Vec<Range<OffsetUtf16>> {
8683 let selections = self.selections.all::<OffsetUtf16>(cx);
8684 let newest_selection = selections
8685 .iter()
8686 .max_by_key(|selection| selection.id)
8687 .unwrap();
8688 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8689 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8690 let snapshot = self.buffer.read(cx).read(cx);
8691 selections
8692 .into_iter()
8693 .map(|mut selection| {
8694 selection.start.0 =
8695 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8696 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8697 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8698 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8699 })
8700 .collect()
8701 }
8702
8703 fn report_copilot_event(
8704 &self,
8705 suggestion_id: Option<String>,
8706 suggestion_accepted: bool,
8707 cx: &AppContext,
8708 ) {
8709 let Some(project) = &self.project else { return };
8710
8711 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8712 let file_extension = self
8713 .buffer
8714 .read(cx)
8715 .as_singleton()
8716 .and_then(|b| b.read(cx).file())
8717 .and_then(|file| Path::new(file.file_name(cx)).extension())
8718 .and_then(|e| e.to_str())
8719 .map(|a| a.to_string());
8720
8721 let telemetry = project.read(cx).client().telemetry().clone();
8722
8723 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8724 }
8725
8726 #[cfg(any(test, feature = "test-support"))]
8727 fn report_editor_event(
8728 &self,
8729 _operation: &'static str,
8730 _file_extension: Option<String>,
8731 _cx: &AppContext,
8732 ) {
8733 }
8734
8735 #[cfg(not(any(test, feature = "test-support")))]
8736 fn report_editor_event(
8737 &self,
8738 operation: &'static str,
8739 file_extension: Option<String>,
8740 cx: &AppContext,
8741 ) {
8742 let Some(project) = &self.project else { return };
8743
8744 // If None, we are in a file without an extension
8745 let file = self
8746 .buffer
8747 .read(cx)
8748 .as_singleton()
8749 .and_then(|b| b.read(cx).file());
8750 let file_extension = file_extension.or(file
8751 .as_ref()
8752 .and_then(|file| Path::new(file.file_name(cx)).extension())
8753 .and_then(|e| e.to_str())
8754 .map(|a| a.to_string()));
8755
8756 let vim_mode = cx
8757 .global::<SettingsStore>()
8758 .raw_user_settings()
8759 .get("vim_mode")
8760 == Some(&serde_json::Value::Bool(true));
8761 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8762 let copilot_enabled_for_language = self
8763 .buffer
8764 .read(cx)
8765 .settings_at(0, cx)
8766 .show_copilot_suggestions;
8767
8768 let telemetry = project.read(cx).client().telemetry().clone();
8769 telemetry.report_editor_event(
8770 file_extension,
8771 vim_mode,
8772 operation,
8773 copilot_enabled,
8774 copilot_enabled_for_language,
8775 )
8776 }
8777
8778 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8779 /// with each line being an array of {text, highlight} objects.
8780 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8781 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8782 return;
8783 };
8784
8785 #[derive(Serialize)]
8786 struct Chunk<'a> {
8787 text: String,
8788 highlight: Option<&'a str>,
8789 }
8790
8791 let snapshot = buffer.read(cx).snapshot();
8792 let range = self
8793 .selected_text_range(cx)
8794 .and_then(|selected_range| {
8795 if selected_range.is_empty() {
8796 None
8797 } else {
8798 Some(selected_range)
8799 }
8800 })
8801 .unwrap_or_else(|| 0..snapshot.len());
8802
8803 let chunks = snapshot.chunks(range, true);
8804 let mut lines = Vec::new();
8805 let mut line: VecDeque<Chunk> = VecDeque::new();
8806
8807 let Some(style) = self.style.as_ref() else {
8808 return;
8809 };
8810
8811 for chunk in chunks {
8812 let highlight = chunk
8813 .syntax_highlight_id
8814 .and_then(|id| id.name(&style.syntax));
8815 let mut chunk_lines = chunk.text.split("\n").peekable();
8816 while let Some(text) = chunk_lines.next() {
8817 let mut merged_with_last_token = false;
8818 if let Some(last_token) = line.back_mut() {
8819 if last_token.highlight == highlight {
8820 last_token.text.push_str(text);
8821 merged_with_last_token = true;
8822 }
8823 }
8824
8825 if !merged_with_last_token {
8826 line.push_back(Chunk {
8827 text: text.into(),
8828 highlight,
8829 });
8830 }
8831
8832 if chunk_lines.peek().is_some() {
8833 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8834 line.pop_front();
8835 }
8836 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8837 line.pop_back();
8838 }
8839
8840 lines.push(mem::take(&mut line));
8841 }
8842 }
8843 }
8844
8845 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8846 return;
8847 };
8848 cx.write_to_clipboard(ClipboardItem::new(lines));
8849 }
8850
8851 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8852 &self.inlay_hint_cache
8853 }
8854
8855 pub fn replay_insert_event(
8856 &mut self,
8857 text: &str,
8858 relative_utf16_range: Option<Range<isize>>,
8859 cx: &mut ViewContext<Self>,
8860 ) {
8861 if !self.input_enabled {
8862 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8863 return;
8864 }
8865 if let Some(relative_utf16_range) = relative_utf16_range {
8866 let selections = self.selections.all::<OffsetUtf16>(cx);
8867 self.change_selections(None, cx, |s| {
8868 let new_ranges = selections.into_iter().map(|range| {
8869 let start = OffsetUtf16(
8870 range
8871 .head()
8872 .0
8873 .saturating_add_signed(relative_utf16_range.start),
8874 );
8875 let end = OffsetUtf16(
8876 range
8877 .head()
8878 .0
8879 .saturating_add_signed(relative_utf16_range.end),
8880 );
8881 start..end
8882 });
8883 s.select_ranges(new_ranges);
8884 });
8885 }
8886
8887 self.handle_input(text, cx);
8888 }
8889
8890 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8891 let Some(project) = self.project.as_ref() else {
8892 return false;
8893 };
8894 let project = project.read(cx);
8895
8896 let mut supports = false;
8897 self.buffer().read(cx).for_each_buffer(|buffer| {
8898 if !supports {
8899 supports = project
8900 .language_servers_for_buffer(buffer.read(cx), cx)
8901 .any(
8902 |(_, server)| match server.capabilities().inlay_hint_provider {
8903 Some(lsp::OneOf::Left(enabled)) => enabled,
8904 Some(lsp::OneOf::Right(_)) => true,
8905 None => false,
8906 },
8907 )
8908 }
8909 });
8910 supports
8911 }
8912
8913 pub fn focus(&self, cx: &mut WindowContext) {
8914 cx.focus(&self.focus_handle)
8915 }
8916
8917 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8918 self.focus_handle.is_focused(cx)
8919 }
8920
8921 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8922 cx.emit(EditorEvent::Focused);
8923
8924 if let Some(rename) = self.pending_rename.as_ref() {
8925 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8926 cx.focus(&rename_editor_focus_handle);
8927 } else {
8928 self.blink_manager.update(cx, BlinkManager::enable);
8929 self.show_cursor_names(cx);
8930 self.buffer.update(cx, |buffer, cx| {
8931 buffer.finalize_last_transaction(cx);
8932 if self.leader_peer_id.is_none() {
8933 buffer.set_active_selections(
8934 &self.selections.disjoint_anchors(),
8935 self.selections.line_mode,
8936 self.cursor_shape,
8937 cx,
8938 );
8939 }
8940 });
8941 }
8942 }
8943
8944 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
8945 self.blink_manager.update(cx, BlinkManager::disable);
8946 self.buffer
8947 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
8948 self.hide_context_menu(cx);
8949 hide_hover(self, cx);
8950 cx.emit(EditorEvent::Blurred);
8951 cx.notify();
8952 }
8953
8954 pub fn register_action<A: Action>(
8955 &mut self,
8956 listener: impl Fn(&A, &mut WindowContext) + 'static,
8957 ) -> &mut Self {
8958 let listener = Arc::new(listener);
8959
8960 self.editor_actions.push(Box::new(move |cx| {
8961 let _view = cx.view().clone();
8962 let cx = cx.window_context();
8963 let listener = listener.clone();
8964 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
8965 let action = action.downcast_ref().unwrap();
8966 if phase == DispatchPhase::Bubble {
8967 listener(action, cx)
8968 }
8969 })
8970 }));
8971 self
8972 }
8973}
8974
8975pub trait CollaborationHub {
8976 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
8977 fn user_participant_indices<'a>(
8978 &self,
8979 cx: &'a AppContext,
8980 ) -> &'a HashMap<u64, ParticipantIndex>;
8981 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
8982}
8983
8984impl CollaborationHub for Model<Project> {
8985 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
8986 self.read(cx).collaborators()
8987 }
8988
8989 fn user_participant_indices<'a>(
8990 &self,
8991 cx: &'a AppContext,
8992 ) -> &'a HashMap<u64, ParticipantIndex> {
8993 self.read(cx).user_store().read(cx).participant_indices()
8994 }
8995
8996 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
8997 let this = self.read(cx);
8998 let user_ids = this.collaborators().values().map(|c| c.user_id);
8999 this.user_store().read_with(cx, |user_store, cx| {
9000 user_store.participant_names(user_ids, cx)
9001 })
9002 }
9003}
9004
9005pub trait CompletionProvider {
9006 fn completions(
9007 &self,
9008 buffer: &Model<Buffer>,
9009 buffer_position: text::Anchor,
9010 cx: &mut ViewContext<Editor>,
9011 ) -> Task<Result<Vec<Completion>>>;
9012
9013 fn resolve_completions(
9014 &self,
9015 completion_indices: Vec<usize>,
9016 completions: Arc<RwLock<Box<[Completion]>>>,
9017 cx: &mut ViewContext<Editor>,
9018 ) -> Task<Result<bool>>;
9019
9020 fn apply_additional_edits_for_completion(
9021 &self,
9022 buffer: Model<Buffer>,
9023 completion: Completion,
9024 push_to_history: bool,
9025 cx: &mut ViewContext<Editor>,
9026 ) -> Task<Result<Option<language::Transaction>>>;
9027}
9028
9029impl CompletionProvider for Model<Project> {
9030 fn completions(
9031 &self,
9032 buffer: &Model<Buffer>,
9033 buffer_position: text::Anchor,
9034 cx: &mut ViewContext<Editor>,
9035 ) -> Task<Result<Vec<Completion>>> {
9036 self.update(cx, |project, cx| {
9037 project.completions(&buffer, buffer_position, cx)
9038 })
9039 }
9040
9041 fn resolve_completions(
9042 &self,
9043 completion_indices: Vec<usize>,
9044 completions: Arc<RwLock<Box<[Completion]>>>,
9045 cx: &mut ViewContext<Editor>,
9046 ) -> Task<Result<bool>> {
9047 self.update(cx, |project, cx| {
9048 project.resolve_completions(completion_indices, completions, cx)
9049 })
9050 }
9051
9052 fn apply_additional_edits_for_completion(
9053 &self,
9054 buffer: Model<Buffer>,
9055 completion: Completion,
9056 push_to_history: bool,
9057 cx: &mut ViewContext<Editor>,
9058 ) -> Task<Result<Option<language::Transaction>>> {
9059 self.update(cx, |project, cx| {
9060 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9061 })
9062 }
9063}
9064
9065fn inlay_hint_settings(
9066 location: Anchor,
9067 snapshot: &MultiBufferSnapshot,
9068 cx: &mut ViewContext<'_, Editor>,
9069) -> InlayHintSettings {
9070 let file = snapshot.file_at(location);
9071 let language = snapshot.language_at(location);
9072 let settings = all_language_settings(file, cx);
9073 settings
9074 .language(language.map(|l| l.name()).as_deref())
9075 .inlay_hints
9076}
9077
9078fn consume_contiguous_rows(
9079 contiguous_row_selections: &mut Vec<Selection<Point>>,
9080 selection: &Selection<Point>,
9081 display_map: &DisplaySnapshot,
9082 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9083) -> (u32, u32) {
9084 contiguous_row_selections.push(selection.clone());
9085 let start_row = selection.start.row;
9086 let mut end_row = ending_row(selection, display_map);
9087
9088 while let Some(next_selection) = selections.peek() {
9089 if next_selection.start.row <= end_row {
9090 end_row = ending_row(next_selection, display_map);
9091 contiguous_row_selections.push(selections.next().unwrap().clone());
9092 } else {
9093 break;
9094 }
9095 }
9096 (start_row, end_row)
9097}
9098
9099fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9100 if next_selection.end.column > 0 || next_selection.is_empty() {
9101 display_map.next_line_boundary(next_selection.end).0.row + 1
9102 } else {
9103 next_selection.end.row
9104 }
9105}
9106
9107impl EditorSnapshot {
9108 pub fn remote_selections_in_range<'a>(
9109 &'a self,
9110 range: &'a Range<Anchor>,
9111 collaboration_hub: &dyn CollaborationHub,
9112 cx: &'a AppContext,
9113 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9114 let participant_names = collaboration_hub.user_names(cx);
9115 let participant_indices = collaboration_hub.user_participant_indices(cx);
9116 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9117 let collaborators_by_replica_id = collaborators_by_peer_id
9118 .iter()
9119 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9120 .collect::<HashMap<_, _>>();
9121 self.buffer_snapshot
9122 .remote_selections_in_range(range)
9123 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9124 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9125 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9126 let user_name = participant_names.get(&collaborator.user_id).cloned();
9127 Some(RemoteSelection {
9128 replica_id,
9129 selection,
9130 cursor_shape,
9131 line_mode,
9132 participant_index,
9133 peer_id: collaborator.peer_id,
9134 user_name,
9135 })
9136 })
9137 }
9138
9139 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9140 self.display_snapshot.buffer_snapshot.language_at(position)
9141 }
9142
9143 pub fn is_focused(&self) -> bool {
9144 self.is_focused
9145 }
9146
9147 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9148 self.placeholder_text.as_ref()
9149 }
9150
9151 pub fn scroll_position(&self) -> gpui::Point<f32> {
9152 self.scroll_anchor.scroll_position(&self.display_snapshot)
9153 }
9154
9155 pub fn gutter_dimensions(
9156 &self,
9157 font_id: FontId,
9158 font_size: Pixels,
9159 em_width: Pixels,
9160 max_line_number_width: Pixels,
9161 cx: &AppContext,
9162 ) -> GutterDimensions {
9163 if self.show_gutter {
9164 let descent = cx.text_system().descent(font_id, font_size);
9165 let gutter_padding_factor = 4.0;
9166 let gutter_padding = (em_width * gutter_padding_factor).round();
9167 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9168 let min_width_for_number_on_gutter = em_width * 4.0;
9169 let gutter_width =
9170 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9171 let gutter_margin = -descent;
9172
9173 GutterDimensions {
9174 padding: gutter_padding,
9175 width: gutter_width,
9176 margin: gutter_margin,
9177 }
9178 } else {
9179 GutterDimensions::default()
9180 }
9181 }
9182}
9183
9184impl Deref for EditorSnapshot {
9185 type Target = DisplaySnapshot;
9186
9187 fn deref(&self) -> &Self::Target {
9188 &self.display_snapshot
9189 }
9190}
9191
9192#[derive(Clone, Debug, PartialEq, Eq)]
9193pub enum EditorEvent {
9194 InputIgnored {
9195 text: Arc<str>,
9196 },
9197 InputHandled {
9198 utf16_range_to_replace: Option<Range<isize>>,
9199 text: Arc<str>,
9200 },
9201 ExcerptsAdded {
9202 buffer: Model<Buffer>,
9203 predecessor: ExcerptId,
9204 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9205 },
9206 ExcerptsRemoved {
9207 ids: Vec<ExcerptId>,
9208 },
9209 BufferEdited,
9210 Edited,
9211 Reparsed,
9212 Focused,
9213 Blurred,
9214 DirtyChanged,
9215 Saved,
9216 TitleChanged,
9217 DiffBaseChanged,
9218 SelectionsChanged {
9219 local: bool,
9220 },
9221 ScrollPositionChanged {
9222 local: bool,
9223 autoscroll: bool,
9224 },
9225 Closed,
9226}
9227
9228impl EventEmitter<EditorEvent> for Editor {}
9229
9230impl FocusableView for Editor {
9231 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9232 self.focus_handle.clone()
9233 }
9234}
9235
9236impl Render for Editor {
9237 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9238 let settings = ThemeSettings::get_global(cx);
9239 let text_style = match self.mode {
9240 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9241 color: cx.theme().colors().editor_foreground,
9242 font_family: settings.ui_font.family.clone(),
9243 font_features: settings.ui_font.features,
9244 font_size: rems(0.875).into(),
9245 font_weight: FontWeight::NORMAL,
9246 font_style: FontStyle::Normal,
9247 line_height: relative(settings.buffer_line_height.value()),
9248 background_color: None,
9249 underline: None,
9250 white_space: WhiteSpace::Normal,
9251 },
9252
9253 EditorMode::Full => TextStyle {
9254 color: cx.theme().colors().editor_foreground,
9255 font_family: settings.buffer_font.family.clone(),
9256 font_features: settings.buffer_font.features,
9257 font_size: settings.buffer_font_size(cx).into(),
9258 font_weight: FontWeight::NORMAL,
9259 font_style: FontStyle::Normal,
9260 line_height: relative(settings.buffer_line_height.value()),
9261 background_color: None,
9262 underline: None,
9263 white_space: WhiteSpace::Normal,
9264 },
9265 };
9266
9267 let background = match self.mode {
9268 EditorMode::SingleLine => cx.theme().system().transparent,
9269 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9270 EditorMode::Full => cx.theme().colors().editor_background,
9271 };
9272
9273 EditorElement::new(
9274 cx.view(),
9275 EditorStyle {
9276 background,
9277 local_player: cx.theme().players().local(),
9278 text: text_style,
9279 scrollbar_width: px(12.),
9280 syntax: cx.theme().syntax().clone(),
9281 status: cx.theme().status().clone(),
9282 inlays_style: HighlightStyle {
9283 color: Some(cx.theme().status().hint),
9284 font_weight: Some(FontWeight::BOLD),
9285 ..HighlightStyle::default()
9286 },
9287 suggestions_style: HighlightStyle {
9288 color: Some(cx.theme().status().predictive),
9289 ..HighlightStyle::default()
9290 },
9291 },
9292 )
9293 }
9294}
9295
9296impl ViewInputHandler for Editor {
9297 fn text_for_range(
9298 &mut self,
9299 range_utf16: Range<usize>,
9300 cx: &mut ViewContext<Self>,
9301 ) -> Option<String> {
9302 Some(
9303 self.buffer
9304 .read(cx)
9305 .read(cx)
9306 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9307 .collect(),
9308 )
9309 }
9310
9311 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9312 // Prevent the IME menu from appearing when holding down an alphabetic key
9313 // while input is disabled.
9314 if !self.input_enabled {
9315 return None;
9316 }
9317
9318 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9319 Some(range.start.0..range.end.0)
9320 }
9321
9322 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9323 let snapshot = self.buffer.read(cx).read(cx);
9324 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9325 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9326 }
9327
9328 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9329 self.clear_highlights::<InputComposition>(cx);
9330 self.ime_transaction.take();
9331 }
9332
9333 fn replace_text_in_range(
9334 &mut self,
9335 range_utf16: Option<Range<usize>>,
9336 text: &str,
9337 cx: &mut ViewContext<Self>,
9338 ) {
9339 if !self.input_enabled {
9340 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9341 return;
9342 }
9343
9344 self.transact(cx, |this, cx| {
9345 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9346 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9347 Some(this.selection_replacement_ranges(range_utf16, cx))
9348 } else {
9349 this.marked_text_ranges(cx)
9350 };
9351
9352 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9353 let newest_selection_id = this.selections.newest_anchor().id;
9354 this.selections
9355 .all::<OffsetUtf16>(cx)
9356 .iter()
9357 .zip(ranges_to_replace.iter())
9358 .find_map(|(selection, range)| {
9359 if selection.id == newest_selection_id {
9360 Some(
9361 (range.start.0 as isize - selection.head().0 as isize)
9362 ..(range.end.0 as isize - selection.head().0 as isize),
9363 )
9364 } else {
9365 None
9366 }
9367 })
9368 });
9369
9370 cx.emit(EditorEvent::InputHandled {
9371 utf16_range_to_replace: range_to_replace,
9372 text: text.into(),
9373 });
9374
9375 if let Some(new_selected_ranges) = new_selected_ranges {
9376 this.change_selections(None, cx, |selections| {
9377 selections.select_ranges(new_selected_ranges)
9378 });
9379 }
9380
9381 this.handle_input(text, cx);
9382 });
9383
9384 if let Some(transaction) = self.ime_transaction {
9385 self.buffer.update(cx, |buffer, cx| {
9386 buffer.group_until_transaction(transaction, cx);
9387 });
9388 }
9389
9390 self.unmark_text(cx);
9391 }
9392
9393 fn replace_and_mark_text_in_range(
9394 &mut self,
9395 range_utf16: Option<Range<usize>>,
9396 text: &str,
9397 new_selected_range_utf16: Option<Range<usize>>,
9398 cx: &mut ViewContext<Self>,
9399 ) {
9400 if !self.input_enabled {
9401 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9402 return;
9403 }
9404
9405 let transaction = self.transact(cx, |this, cx| {
9406 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9407 let snapshot = this.buffer.read(cx).read(cx);
9408 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9409 for marked_range in &mut marked_ranges {
9410 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9411 marked_range.start.0 += relative_range_utf16.start;
9412 marked_range.start =
9413 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9414 marked_range.end =
9415 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9416 }
9417 }
9418 Some(marked_ranges)
9419 } else if let Some(range_utf16) = range_utf16 {
9420 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9421 Some(this.selection_replacement_ranges(range_utf16, cx))
9422 } else {
9423 None
9424 };
9425
9426 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9427 let newest_selection_id = this.selections.newest_anchor().id;
9428 this.selections
9429 .all::<OffsetUtf16>(cx)
9430 .iter()
9431 .zip(ranges_to_replace.iter())
9432 .find_map(|(selection, range)| {
9433 if selection.id == newest_selection_id {
9434 Some(
9435 (range.start.0 as isize - selection.head().0 as isize)
9436 ..(range.end.0 as isize - selection.head().0 as isize),
9437 )
9438 } else {
9439 None
9440 }
9441 })
9442 });
9443
9444 cx.emit(EditorEvent::InputHandled {
9445 utf16_range_to_replace: range_to_replace,
9446 text: text.into(),
9447 });
9448
9449 if let Some(ranges) = ranges_to_replace {
9450 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9451 }
9452
9453 let marked_ranges = {
9454 let snapshot = this.buffer.read(cx).read(cx);
9455 this.selections
9456 .disjoint_anchors()
9457 .iter()
9458 .map(|selection| {
9459 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9460 })
9461 .collect::<Vec<_>>()
9462 };
9463
9464 if text.is_empty() {
9465 this.unmark_text(cx);
9466 } else {
9467 this.highlight_text::<InputComposition>(
9468 marked_ranges.clone(),
9469 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9470 cx,
9471 );
9472 }
9473
9474 this.handle_input(text, cx);
9475
9476 if let Some(new_selected_range) = new_selected_range_utf16 {
9477 let snapshot = this.buffer.read(cx).read(cx);
9478 let new_selected_ranges = marked_ranges
9479 .into_iter()
9480 .map(|marked_range| {
9481 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9482 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9483 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9484 snapshot.clip_offset_utf16(new_start, Bias::Left)
9485 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9486 })
9487 .collect::<Vec<_>>();
9488
9489 drop(snapshot);
9490 this.change_selections(None, cx, |selections| {
9491 selections.select_ranges(new_selected_ranges)
9492 });
9493 }
9494 });
9495
9496 self.ime_transaction = self.ime_transaction.or(transaction);
9497 if let Some(transaction) = self.ime_transaction {
9498 self.buffer.update(cx, |buffer, cx| {
9499 buffer.group_until_transaction(transaction, cx);
9500 });
9501 }
9502
9503 if self.text_highlights::<InputComposition>(cx).is_none() {
9504 self.ime_transaction.take();
9505 }
9506 }
9507
9508 fn bounds_for_range(
9509 &mut self,
9510 range_utf16: Range<usize>,
9511 element_bounds: gpui::Bounds<Pixels>,
9512 cx: &mut ViewContext<Self>,
9513 ) -> Option<gpui::Bounds<Pixels>> {
9514 let text_layout_details = self.text_layout_details(cx);
9515 let style = &text_layout_details.editor_style;
9516 let font_id = cx.text_system().resolve_font(&style.text.font());
9517 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9518 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9519 let em_width = cx
9520 .text_system()
9521 .typographic_bounds(font_id, font_size, 'm')
9522 .unwrap()
9523 .size
9524 .width;
9525
9526 let snapshot = self.snapshot(cx);
9527 let scroll_position = snapshot.scroll_position();
9528 let scroll_left = scroll_position.x * em_width;
9529
9530 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9531 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9532 + self.gutter_width;
9533 let y = line_height * (start.row() as f32 - scroll_position.y);
9534
9535 Some(Bounds {
9536 origin: element_bounds.origin + point(x, y),
9537 size: size(em_width, line_height),
9538 })
9539 }
9540}
9541
9542trait SelectionExt {
9543 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9544 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9545 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9546 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9547 -> Range<u32>;
9548}
9549
9550impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9551 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9552 let start = self.start.to_point(buffer);
9553 let end = self.end.to_point(buffer);
9554 if self.reversed {
9555 end..start
9556 } else {
9557 start..end
9558 }
9559 }
9560
9561 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9562 let start = self.start.to_offset(buffer);
9563 let end = self.end.to_offset(buffer);
9564 if self.reversed {
9565 end..start
9566 } else {
9567 start..end
9568 }
9569 }
9570
9571 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9572 let start = self
9573 .start
9574 .to_point(&map.buffer_snapshot)
9575 .to_display_point(map);
9576 let end = self
9577 .end
9578 .to_point(&map.buffer_snapshot)
9579 .to_display_point(map);
9580 if self.reversed {
9581 end..start
9582 } else {
9583 start..end
9584 }
9585 }
9586
9587 fn spanned_rows(
9588 &self,
9589 include_end_if_at_line_start: bool,
9590 map: &DisplaySnapshot,
9591 ) -> Range<u32> {
9592 let start = self.start.to_point(&map.buffer_snapshot);
9593 let mut end = self.end.to_point(&map.buffer_snapshot);
9594 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9595 end.row -= 1;
9596 }
9597
9598 let buffer_start = map.prev_line_boundary(start).0;
9599 let buffer_end = map.next_line_boundary(end).0;
9600 buffer_start.row..buffer_end.row + 1
9601 }
9602}
9603
9604impl<T: InvalidationRegion> InvalidationStack<T> {
9605 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9606 where
9607 S: Clone + ToOffset,
9608 {
9609 while let Some(region) = self.last() {
9610 let all_selections_inside_invalidation_ranges =
9611 if selections.len() == region.ranges().len() {
9612 selections
9613 .iter()
9614 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9615 .all(|(selection, invalidation_range)| {
9616 let head = selection.head().to_offset(buffer);
9617 invalidation_range.start <= head && invalidation_range.end >= head
9618 })
9619 } else {
9620 false
9621 };
9622
9623 if all_selections_inside_invalidation_ranges {
9624 break;
9625 } else {
9626 self.pop();
9627 }
9628 }
9629 }
9630}
9631
9632impl<T> Default for InvalidationStack<T> {
9633 fn default() -> Self {
9634 Self(Default::default())
9635 }
9636}
9637
9638impl<T> Deref for InvalidationStack<T> {
9639 type Target = Vec<T>;
9640
9641 fn deref(&self) -> &Self::Target {
9642 &self.0
9643 }
9644}
9645
9646impl<T> DerefMut for InvalidationStack<T> {
9647 fn deref_mut(&mut self) -> &mut Self::Target {
9648 &mut self.0
9649 }
9650}
9651
9652impl InvalidationRegion for SnippetState {
9653 fn ranges(&self) -> &[Range<Anchor>] {
9654 &self.ranges[self.active_index]
9655 }
9656}
9657
9658pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9659 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9660
9661 Arc::new(move |cx: &mut BlockContext| {
9662 let group_id: SharedString = cx.block_id.to_string().into();
9663
9664 let mut text_style = cx.text_style().clone();
9665 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
9666
9667 h_flex()
9668 .id(cx.block_id)
9669 .group(group_id.clone())
9670 .relative()
9671 .size_full()
9672 .pl(cx.gutter_width)
9673 .w(cx.max_width + cx.gutter_width)
9674 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
9675 .child(div().flex().flex_shrink_0().child(
9676 StyledText::new(text_without_backticks.clone()).with_highlights(
9677 &text_style,
9678 code_ranges.iter().map(|range| {
9679 (
9680 range.clone(),
9681 HighlightStyle {
9682 font_weight: Some(FontWeight::BOLD),
9683 ..Default::default()
9684 },
9685 )
9686 }),
9687 ),
9688 ))
9689 .child(
9690 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9691 .icon_color(Color::Muted)
9692 .size(ButtonSize::Compact)
9693 .style(ButtonStyle::Transparent)
9694 .visible_on_hover(group_id)
9695 .on_click({
9696 let message = diagnostic.message.clone();
9697 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9698 })
9699 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9700 )
9701 .into_any_element()
9702 })
9703}
9704
9705pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9706 let mut text_without_backticks = String::new();
9707 let mut code_ranges = Vec::new();
9708
9709 if let Some(source) = &diagnostic.source {
9710 text_without_backticks.push_str(&source);
9711 code_ranges.push(0..source.len());
9712 text_without_backticks.push_str(": ");
9713 }
9714
9715 let mut prev_offset = 0;
9716 let mut in_code_block = false;
9717 for (ix, _) in diagnostic
9718 .message
9719 .match_indices('`')
9720 .chain([(diagnostic.message.len(), "")])
9721 {
9722 let prev_len = text_without_backticks.len();
9723 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9724 prev_offset = ix + 1;
9725 if in_code_block {
9726 code_ranges.push(prev_len..text_without_backticks.len());
9727 in_code_block = false;
9728 } else {
9729 in_code_block = true;
9730 }
9731 }
9732
9733 (text_without_backticks.into(), code_ranges)
9734}
9735
9736fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9737 match (severity, valid) {
9738 (DiagnosticSeverity::ERROR, true) => colors.error,
9739 (DiagnosticSeverity::ERROR, false) => colors.error,
9740 (DiagnosticSeverity::WARNING, true) => colors.warning,
9741 (DiagnosticSeverity::WARNING, false) => colors.warning,
9742 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9743 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9744 (DiagnosticSeverity::HINT, true) => colors.info,
9745 (DiagnosticSeverity::HINT, false) => colors.info,
9746 _ => colors.ignored,
9747 }
9748}
9749
9750pub fn styled_runs_for_code_label<'a>(
9751 label: &'a CodeLabel,
9752 syntax_theme: &'a theme::SyntaxTheme,
9753) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9754 let fade_out = HighlightStyle {
9755 fade_out: Some(0.35),
9756 ..Default::default()
9757 };
9758
9759 let mut prev_end = label.filter_range.end;
9760 label
9761 .runs
9762 .iter()
9763 .enumerate()
9764 .flat_map(move |(ix, (range, highlight_id))| {
9765 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9766 style
9767 } else {
9768 return Default::default();
9769 };
9770 let mut muted_style = style;
9771 muted_style.highlight(fade_out);
9772
9773 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9774 if range.start >= label.filter_range.end {
9775 if range.start > prev_end {
9776 runs.push((prev_end..range.start, fade_out));
9777 }
9778 runs.push((range.clone(), muted_style));
9779 } else if range.end <= label.filter_range.end {
9780 runs.push((range.clone(), style));
9781 } else {
9782 runs.push((range.start..label.filter_range.end, style));
9783 runs.push((label.filter_range.end..range.end, muted_style));
9784 }
9785 prev_end = cmp::max(prev_end, range.end);
9786
9787 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9788 runs.push((prev_end..label.text.len(), fade_out));
9789 }
9790
9791 runs
9792 })
9793}
9794
9795pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9796 let mut index = 0;
9797 let mut codepoints = text.char_indices().peekable();
9798
9799 std::iter::from_fn(move || {
9800 let start_index = index;
9801 while let Some((new_index, codepoint)) = codepoints.next() {
9802 index = new_index + codepoint.len_utf8();
9803 let current_upper = codepoint.is_uppercase();
9804 let next_upper = codepoints
9805 .peek()
9806 .map(|(_, c)| c.is_uppercase())
9807 .unwrap_or(false);
9808
9809 if !current_upper && next_upper {
9810 return Some(&text[start_index..index]);
9811 }
9812 }
9813
9814 index = text.len();
9815 if start_index < text.len() {
9816 return Some(&text[start_index..]);
9817 }
9818 None
9819 })
9820 .flat_map(|word| word.split_inclusive('_'))
9821 .flat_map(|word| word.split_inclusive('-'))
9822}
9823
9824trait RangeToAnchorExt {
9825 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9826}
9827
9828impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9829 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9830 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9831 }
9832}