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::{Client, Collaborator, ParticipantIndex};
44use clock::ReplicaId;
45use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
46use convert_case::{Case, Casing};
47use copilot::Copilot;
48pub use display_map::DisplayPoint;
49use display_map::*;
50pub use editor_settings::EditorSettings;
51use element::LineWithInvisibles;
52pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
53use futures::FutureExt;
54use fuzzy::{StringMatch, StringMatchCandidate};
55use git::diff_hunk_to_display;
56use gpui::{
57 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
58 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
59 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontStyle, FontWeight,
60 HighlightStyle, Hsla, InputHandler, InteractiveText, KeyContext, Model, MouseButton,
61 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
62 UniformListScrollHandle, View, ViewContext, VisualContext, WeakView, WhiteSpace, WindowContext,
63};
64use highlight_matching_bracket::refresh_matching_bracket_highlights;
65use hover_popover::{hide_hover, HoverState};
66use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
67pub use items::MAX_TAB_TITLE_LEN;
68use itertools::Itertools;
69use language::{char_kind, CharKind};
70use language::{
71 language_settings::{self, all_language_settings, InlayHintSettings},
72 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
73 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
74 Language, LanguageRegistry, LanguageServerName, OffsetRangeExt, Point, Selection,
75 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::{self, *};
92use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
93use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
94use serde::{Deserialize, Serialize};
95use settings::{Settings, SettingsStore};
96use smallvec::SmallVec;
97use snippet::Snippet;
98use std::{
99 any::TypeId,
100 borrow::Cow,
101 cmp::{self, Ordering, Reverse},
102 mem,
103 num::NonZeroU32,
104 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
105 path::Path,
106 sync::Arc,
107 sync::Weak,
108 time::{Duration, Instant},
109};
110pub use sum_tree::Bias;
111use sum_tree::TreeMap;
112use text::{OffsetUtf16, Rope};
113use theme::{
114 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
115 ThemeColors, ThemeSettings,
116};
117use ui::{
118 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
119 Tooltip,
120};
121use util::{post_inc, RangeExt, ResultExt, TryFutureExt};
122use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
123
124const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
125const MAX_LINE_LEN: usize = 1024;
126const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
127const MAX_SELECTION_HISTORY_LEN: usize = 1024;
128const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
129#[doc(hidden)]
130pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
131#[doc(hidden)]
132pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
133
134pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
135
136pub fn render_parsed_markdown(
137 element_id: impl Into<ElementId>,
138 parsed: &language::ParsedMarkdown,
139 editor_style: &EditorStyle,
140 workspace: Option<WeakView<Workspace>>,
141 cx: &mut ViewContext<Editor>,
142) -> InteractiveText {
143 let code_span_background_color = cx
144 .theme()
145 .colors()
146 .editor_document_highlight_read_background;
147
148 let highlights = gpui::combine_highlights(
149 parsed.highlights.iter().filter_map(|(range, highlight)| {
150 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
151 Some((range.clone(), highlight))
152 }),
153 parsed
154 .regions
155 .iter()
156 .zip(&parsed.region_ranges)
157 .filter_map(|(region, range)| {
158 if region.code {
159 Some((
160 range.clone(),
161 HighlightStyle {
162 background_color: Some(code_span_background_color),
163 ..Default::default()
164 },
165 ))
166 } else {
167 None
168 }
169 }),
170 );
171
172 let mut links = Vec::new();
173 let mut link_ranges = Vec::new();
174 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
175 if let Some(link) = region.link.clone() {
176 links.push(link);
177 link_ranges.push(range.clone());
178 }
179 }
180
181 InteractiveText::new(
182 element_id,
183 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
184 )
185 .on_click(link_ranges, move |clicked_range_ix, cx| {
186 match &links[clicked_range_ix] {
187 markdown::Link::Web { url } => cx.open_url(url),
188 markdown::Link::Path { path } => {
189 if let Some(workspace) = &workspace {
190 _ = workspace.update(cx, |workspace, cx| {
191 workspace.open_abs_path(path.clone(), false, cx).detach();
192 });
193 }
194 }
195 }
196 })
197}
198
199#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
200pub(crate) enum InlayId {
201 Suggestion(usize),
202 Hint(usize),
203}
204
205impl InlayId {
206 fn id(&self) -> usize {
207 match self {
208 Self::Suggestion(id) => *id,
209 Self::Hint(id) => *id,
210 }
211 }
212}
213
214enum DocumentHighlightRead {}
215enum DocumentHighlightWrite {}
216enum InputComposition {}
217
218#[derive(Copy, Clone, PartialEq, Eq)]
219pub enum Direction {
220 Prev,
221 Next,
222}
223
224pub fn init_settings(cx: &mut AppContext) {
225 EditorSettings::register(cx);
226}
227
228pub fn init(cx: &mut AppContext) {
229 init_settings(cx);
230
231 workspace::register_project_item::<Editor>(cx);
232 workspace::register_followable_item::<Editor>(cx);
233 workspace::register_deserializable_item::<Editor>(cx);
234 cx.observe_new_views(
235 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
236 workspace.register_action(Editor::new_file);
237 workspace.register_action(Editor::new_file_in_direction);
238 },
239 )
240 .detach();
241
242 cx.on_action(move |_: &workspace::NewFile, cx| {
243 let app_state = cx.global::<Weak<workspace::AppState>>();
244 if let Some(app_state) = app_state.upgrade() {
245 workspace::open_new(&app_state, cx, |workspace, cx| {
246 Editor::new_file(workspace, &Default::default(), cx)
247 })
248 .detach();
249 }
250 });
251 cx.on_action(move |_: &workspace::NewWindow, cx| {
252 let app_state = cx.global::<Weak<workspace::AppState>>();
253 if let Some(app_state) = app_state.upgrade() {
254 workspace::open_new(&app_state, cx, |workspace, cx| {
255 Editor::new_file(workspace, &Default::default(), cx)
256 })
257 .detach();
258 }
259 });
260}
261
262trait InvalidationRegion {
263 fn ranges(&self) -> &[Range<Anchor>];
264}
265
266#[derive(Clone, Debug, PartialEq)]
267pub enum SelectPhase {
268 Begin {
269 position: DisplayPoint,
270 add: bool,
271 click_count: usize,
272 },
273 BeginColumnar {
274 position: DisplayPoint,
275 goal_column: u32,
276 },
277 Extend {
278 position: DisplayPoint,
279 click_count: usize,
280 },
281 Update {
282 position: DisplayPoint,
283 goal_column: u32,
284 scroll_position: gpui::Point<f32>,
285 },
286 End,
287}
288
289#[derive(Clone, Debug)]
290pub(crate) enum SelectMode {
291 Character,
292 Word(Range<Anchor>),
293 Line(Range<Anchor>),
294 All,
295}
296
297#[derive(Copy, Clone, PartialEq, Eq, Debug)]
298pub enum EditorMode {
299 SingleLine,
300 AutoHeight { max_lines: usize },
301 Full,
302}
303
304#[derive(Clone, Debug)]
305pub enum SoftWrap {
306 None,
307 EditorWidth,
308 Column(u32),
309}
310
311#[derive(Clone)]
312pub struct EditorStyle {
313 pub background: Hsla,
314 pub local_player: PlayerColor,
315 pub text: TextStyle,
316 pub scrollbar_width: Pixels,
317 pub syntax: Arc<SyntaxTheme>,
318 pub status: StatusColors,
319 pub inlays_style: HighlightStyle,
320 pub suggestions_style: HighlightStyle,
321}
322
323impl Default for EditorStyle {
324 fn default() -> Self {
325 Self {
326 background: Hsla::default(),
327 local_player: PlayerColor::default(),
328 text: TextStyle::default(),
329 scrollbar_width: Pixels::default(),
330 syntax: Default::default(),
331 // HACK: Status colors don't have a real default.
332 // We should look into removing the status colors from the editor
333 // style and retrieve them directly from the theme.
334 status: StatusColors::dark(),
335 inlays_style: HighlightStyle::default(),
336 suggestions_style: HighlightStyle::default(),
337 }
338 }
339}
340
341type CompletionId = usize;
342
343// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
344// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
345
346type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
347type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
348
349pub struct Editor {
350 handle: WeakView<Self>,
351 focus_handle: FocusHandle,
352 buffer: Model<MultiBuffer>,
353 display_map: Model<DisplayMap>,
354 pub selections: SelectionsCollection,
355 pub scroll_manager: ScrollManager,
356 columnar_selection_tail: Option<Anchor>,
357 add_selections_state: Option<AddSelectionsState>,
358 select_next_state: Option<SelectNextState>,
359 select_prev_state: Option<SelectNextState>,
360 selection_history: SelectionHistory,
361 autoclose_regions: Vec<AutocloseRegion>,
362 snippet_stack: InvalidationStack<SnippetState>,
363 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
364 ime_transaction: Option<TransactionId>,
365 active_diagnostics: Option<ActiveDiagnosticGroup>,
366 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
367 project: Option<Model<Project>>,
368 collaboration_hub: Option<Box<dyn CollaborationHub>>,
369 blink_manager: Model<BlinkManager>,
370 pub show_local_selections: bool,
371 mode: EditorMode,
372 show_gutter: bool,
373 show_wrap_guides: Option<bool>,
374 placeholder_text: Option<Arc<str>>,
375 highlighted_rows: Option<Range<u32>>,
376 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
377 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
378 nav_history: Option<ItemNavHistory>,
379 context_menu: RwLock<Option<ContextMenu>>,
380 mouse_context_menu: Option<MouseContextMenu>,
381 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
382 next_completion_id: CompletionId,
383 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
384 code_actions_task: Option<Task<()>>,
385 document_highlights_task: Option<Task<()>>,
386 pending_rename: Option<RenameState>,
387 searchable: bool,
388 cursor_shape: CursorShape,
389 collapse_matches: bool,
390 autoindent_mode: Option<AutoindentMode>,
391 workspace: Option<(WeakView<Workspace>, i64)>,
392 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
393 input_enabled: bool,
394 read_only: bool,
395 leader_peer_id: Option<PeerId>,
396 remote_id: Option<ViewId>,
397 hover_state: HoverState,
398 gutter_hovered: bool,
399 link_go_to_definition_state: LinkGoToDefinitionState,
400 copilot_state: CopilotState,
401 inlay_hint_cache: InlayHintCache,
402 next_inlay_id: usize,
403 _subscriptions: Vec<Subscription>,
404 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
405 gutter_width: Pixels,
406 style: Option<EditorStyle>,
407 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
408 show_copilot_suggestions: bool,
409}
410
411pub struct EditorSnapshot {
412 pub mode: EditorMode,
413 pub show_gutter: bool,
414 pub display_snapshot: DisplaySnapshot,
415 pub placeholder_text: Option<Arc<str>>,
416 is_focused: bool,
417 scroll_anchor: ScrollAnchor,
418 ongoing_scroll: OngoingScroll,
419}
420
421pub struct RemoteSelection {
422 pub replica_id: ReplicaId,
423 pub selection: Selection<Anchor>,
424 pub cursor_shape: CursorShape,
425 pub peer_id: PeerId,
426 pub line_mode: bool,
427 pub participant_index: Option<ParticipantIndex>,
428}
429
430#[derive(Clone, Debug)]
431struct SelectionHistoryEntry {
432 selections: Arc<[Selection<Anchor>]>,
433 select_next_state: Option<SelectNextState>,
434 select_prev_state: Option<SelectNextState>,
435 add_selections_state: Option<AddSelectionsState>,
436}
437
438enum SelectionHistoryMode {
439 Normal,
440 Undoing,
441 Redoing,
442}
443
444impl Default for SelectionHistoryMode {
445 fn default() -> Self {
446 Self::Normal
447 }
448}
449
450#[derive(Default)]
451struct SelectionHistory {
452 #[allow(clippy::type_complexity)]
453 selections_by_transaction:
454 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
455 mode: SelectionHistoryMode,
456 undo_stack: VecDeque<SelectionHistoryEntry>,
457 redo_stack: VecDeque<SelectionHistoryEntry>,
458}
459
460impl SelectionHistory {
461 fn insert_transaction(
462 &mut self,
463 transaction_id: TransactionId,
464 selections: Arc<[Selection<Anchor>]>,
465 ) {
466 self.selections_by_transaction
467 .insert(transaction_id, (selections, None));
468 }
469
470 #[allow(clippy::type_complexity)]
471 fn transaction(
472 &self,
473 transaction_id: TransactionId,
474 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
475 self.selections_by_transaction.get(&transaction_id)
476 }
477
478 #[allow(clippy::type_complexity)]
479 fn transaction_mut(
480 &mut self,
481 transaction_id: TransactionId,
482 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
483 self.selections_by_transaction.get_mut(&transaction_id)
484 }
485
486 fn push(&mut self, entry: SelectionHistoryEntry) {
487 if !entry.selections.is_empty() {
488 match self.mode {
489 SelectionHistoryMode::Normal => {
490 self.push_undo(entry);
491 self.redo_stack.clear();
492 }
493 SelectionHistoryMode::Undoing => self.push_redo(entry),
494 SelectionHistoryMode::Redoing => self.push_undo(entry),
495 }
496 }
497 }
498
499 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
500 if self
501 .undo_stack
502 .back()
503 .map_or(true, |e| e.selections != entry.selections)
504 {
505 self.undo_stack.push_back(entry);
506 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
507 self.undo_stack.pop_front();
508 }
509 }
510 }
511
512 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
513 if self
514 .redo_stack
515 .back()
516 .map_or(true, |e| e.selections != entry.selections)
517 {
518 self.redo_stack.push_back(entry);
519 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
520 self.redo_stack.pop_front();
521 }
522 }
523 }
524}
525
526#[derive(Clone, Debug)]
527struct AddSelectionsState {
528 above: bool,
529 stack: Vec<usize>,
530}
531
532#[derive(Clone)]
533struct SelectNextState {
534 query: AhoCorasick,
535 wordwise: bool,
536 done: bool,
537}
538
539impl std::fmt::Debug for SelectNextState {
540 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
541 f.debug_struct(std::any::type_name::<Self>())
542 .field("wordwise", &self.wordwise)
543 .field("done", &self.done)
544 .finish()
545 }
546}
547
548#[derive(Debug)]
549struct AutocloseRegion {
550 selection_id: usize,
551 range: Range<Anchor>,
552 pair: BracketPair,
553}
554
555#[derive(Debug)]
556struct SnippetState {
557 ranges: Vec<Vec<Range<Anchor>>>,
558 active_index: usize,
559}
560
561#[doc(hidden)]
562pub struct RenameState {
563 pub range: Range<Anchor>,
564 pub old_name: Arc<str>,
565 pub editor: View<Editor>,
566 block_id: BlockId,
567}
568
569struct InvalidationStack<T>(Vec<T>);
570
571enum ContextMenu {
572 Completions(CompletionsMenu),
573 CodeActions(CodeActionsMenu),
574}
575
576impl ContextMenu {
577 fn select_first(
578 &mut self,
579 project: Option<&Model<Project>>,
580 cx: &mut ViewContext<Editor>,
581 ) -> bool {
582 if self.visible() {
583 match self {
584 ContextMenu::Completions(menu) => menu.select_first(project, cx),
585 ContextMenu::CodeActions(menu) => menu.select_first(cx),
586 }
587 true
588 } else {
589 false
590 }
591 }
592
593 fn select_prev(
594 &mut self,
595 project: Option<&Model<Project>>,
596 cx: &mut ViewContext<Editor>,
597 ) -> bool {
598 if self.visible() {
599 match self {
600 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
601 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
602 }
603 true
604 } else {
605 false
606 }
607 }
608
609 fn select_next(
610 &mut self,
611 project: Option<&Model<Project>>,
612 cx: &mut ViewContext<Editor>,
613 ) -> bool {
614 if self.visible() {
615 match self {
616 ContextMenu::Completions(menu) => menu.select_next(project, cx),
617 ContextMenu::CodeActions(menu) => menu.select_next(cx),
618 }
619 true
620 } else {
621 false
622 }
623 }
624
625 fn select_last(
626 &mut self,
627 project: Option<&Model<Project>>,
628 cx: &mut ViewContext<Editor>,
629 ) -> bool {
630 if self.visible() {
631 match self {
632 ContextMenu::Completions(menu) => menu.select_last(project, cx),
633 ContextMenu::CodeActions(menu) => menu.select_last(cx),
634 }
635 true
636 } else {
637 false
638 }
639 }
640
641 fn visible(&self) -> bool {
642 match self {
643 ContextMenu::Completions(menu) => menu.visible(),
644 ContextMenu::CodeActions(menu) => menu.visible(),
645 }
646 }
647
648 fn render(
649 &self,
650 cursor_position: DisplayPoint,
651 style: &EditorStyle,
652 max_height: Pixels,
653 workspace: Option<WeakView<Workspace>>,
654 cx: &mut ViewContext<Editor>,
655 ) -> (DisplayPoint, AnyElement) {
656 match self {
657 ContextMenu::Completions(menu) => (
658 cursor_position,
659 menu.render(style, max_height, workspace, cx),
660 ),
661 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
662 }
663 }
664}
665
666#[derive(Clone)]
667struct CompletionsMenu {
668 id: CompletionId,
669 initial_position: Anchor,
670 buffer: Model<Buffer>,
671 completions: Arc<RwLock<Box<[Completion]>>>,
672 match_candidates: Arc<[StringMatchCandidate]>,
673 matches: Arc<[StringMatch]>,
674 selected_item: usize,
675 scroll_handle: UniformListScrollHandle,
676}
677
678impl CompletionsMenu {
679 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
680 self.selected_item = 0;
681 self.scroll_handle.scroll_to_item(self.selected_item);
682 self.attempt_resolve_selected_completion_documentation(project, cx);
683 cx.notify();
684 }
685
686 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
687 if self.selected_item > 0 {
688 self.selected_item -= 1;
689 } else {
690 self.selected_item = self.matches.len() - 1;
691 }
692 self.scroll_handle.scroll_to_item(self.selected_item);
693 self.attempt_resolve_selected_completion_documentation(project, cx);
694 cx.notify();
695 }
696
697 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
698 if self.selected_item + 1 < self.matches.len() {
699 self.selected_item += 1;
700 } else {
701 self.selected_item = 0;
702 }
703 self.scroll_handle.scroll_to_item(self.selected_item);
704 self.attempt_resolve_selected_completion_documentation(project, cx);
705 cx.notify();
706 }
707
708 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
709 self.selected_item = self.matches.len() - 1;
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 pre_resolve_completion_documentation(
716 &self,
717 editor: &Editor,
718 cx: &mut ViewContext<Editor>,
719 ) -> Option<Task<()>> {
720 let settings = EditorSettings::get_global(cx);
721 if !settings.show_completion_documentation {
722 return None;
723 }
724
725 let Some(project) = editor.project.clone() else {
726 return None;
727 };
728
729 let client = project.read(cx).client();
730 let language_registry = project.read(cx).languages().clone();
731
732 let is_remote = project.read(cx).is_remote();
733 let project_id = project.read(cx).remote_id();
734
735 let completions = self.completions.clone();
736 let completion_indices: Vec<_> = self.matches.iter().map(|m| m.candidate_id).collect();
737
738 Some(cx.spawn(move |this, mut cx| async move {
739 if is_remote {
740 let Some(project_id) = project_id else {
741 log::error!("Remote project without remote_id");
742 return;
743 };
744
745 for completion_index in completion_indices {
746 let completions_guard = completions.read();
747 let completion = &completions_guard[completion_index];
748 if completion.documentation.is_some() {
749 continue;
750 }
751
752 let server_id = completion.server_id;
753 let completion = completion.lsp_completion.clone();
754 drop(completions_guard);
755
756 Self::resolve_completion_documentation_remote(
757 project_id,
758 server_id,
759 completions.clone(),
760 completion_index,
761 completion,
762 client.clone(),
763 language_registry.clone(),
764 )
765 .await;
766
767 _ = this.update(&mut cx, |_, cx| cx.notify());
768 }
769 } else {
770 for completion_index in completion_indices {
771 let completions_guard = completions.read();
772 let completion = &completions_guard[completion_index];
773 if completion.documentation.is_some() {
774 continue;
775 }
776
777 let server_id = completion.server_id;
778 let completion = completion.lsp_completion.clone();
779 drop(completions_guard);
780
781 let server = project
782 .read_with(&mut cx, |project, _| {
783 project.language_server_for_id(server_id)
784 })
785 .ok()
786 .flatten();
787 let Some(server) = server else {
788 return;
789 };
790
791 Self::resolve_completion_documentation_local(
792 server,
793 completions.clone(),
794 completion_index,
795 completion,
796 language_registry.clone(),
797 )
798 .await;
799
800 _ = this.update(&mut cx, |_, cx| cx.notify());
801 }
802 }
803 }))
804 }
805
806 fn attempt_resolve_selected_completion_documentation(
807 &mut self,
808 project: Option<&Model<Project>>,
809 cx: &mut ViewContext<Editor>,
810 ) {
811 let settings = EditorSettings::get_global(cx);
812 if !settings.show_completion_documentation {
813 return;
814 }
815
816 let completion_index = self.matches[self.selected_item].candidate_id;
817 let Some(project) = project else {
818 return;
819 };
820 let language_registry = project.read(cx).languages().clone();
821
822 let completions = self.completions.clone();
823 let completions_guard = completions.read();
824 let completion = &completions_guard[completion_index];
825 if completion.documentation.is_some() {
826 return;
827 }
828
829 let server_id = completion.server_id;
830 let completion = completion.lsp_completion.clone();
831 drop(completions_guard);
832
833 if project.read(cx).is_remote() {
834 let Some(project_id) = project.read(cx).remote_id() else {
835 log::error!("Remote project without remote_id");
836 return;
837 };
838
839 let client = project.read(cx).client();
840
841 cx.spawn(move |this, mut cx| async move {
842 Self::resolve_completion_documentation_remote(
843 project_id,
844 server_id,
845 completions.clone(),
846 completion_index,
847 completion,
848 client,
849 language_registry.clone(),
850 )
851 .await;
852
853 _ = this.update(&mut cx, |_, cx| cx.notify());
854 })
855 .detach();
856 } else {
857 let Some(server) = project.read(cx).language_server_for_id(server_id) else {
858 return;
859 };
860
861 cx.spawn(move |this, mut cx| async move {
862 Self::resolve_completion_documentation_local(
863 server,
864 completions,
865 completion_index,
866 completion,
867 language_registry,
868 )
869 .await;
870
871 _ = this.update(&mut cx, |_, cx| cx.notify());
872 })
873 .detach();
874 }
875 }
876
877 async fn resolve_completion_documentation_remote(
878 project_id: u64,
879 server_id: LanguageServerId,
880 completions: Arc<RwLock<Box<[Completion]>>>,
881 completion_index: usize,
882 completion: lsp::CompletionItem,
883 client: Arc<Client>,
884 language_registry: Arc<LanguageRegistry>,
885 ) {
886 let request = proto::ResolveCompletionDocumentation {
887 project_id,
888 language_server_id: server_id.0 as u64,
889 lsp_completion: serde_json::to_string(&completion).unwrap().into_bytes(),
890 };
891
892 let Some(response) = client
893 .request(request)
894 .await
895 .context("completion documentation resolve proto request")
896 .log_err()
897 else {
898 return;
899 };
900
901 if response.text.is_empty() {
902 let mut completions = completions.write();
903 let completion = &mut completions[completion_index];
904 completion.documentation = Some(Documentation::Undocumented);
905 }
906
907 let documentation = if response.is_markdown {
908 Documentation::MultiLineMarkdown(
909 markdown::parse_markdown(&response.text, &language_registry, None).await,
910 )
911 } else if response.text.lines().count() <= 1 {
912 Documentation::SingleLine(response.text)
913 } else {
914 Documentation::MultiLinePlainText(response.text)
915 };
916
917 let mut completions = completions.write();
918 let completion = &mut completions[completion_index];
919 completion.documentation = Some(documentation);
920 }
921
922 async fn resolve_completion_documentation_local(
923 server: Arc<lsp::LanguageServer>,
924 completions: Arc<RwLock<Box<[Completion]>>>,
925 completion_index: usize,
926 completion: lsp::CompletionItem,
927 language_registry: Arc<LanguageRegistry>,
928 ) {
929 let can_resolve = server
930 .capabilities()
931 .completion_provider
932 .as_ref()
933 .and_then(|options| options.resolve_provider)
934 .unwrap_or(false);
935 if !can_resolve {
936 return;
937 }
938
939 let request = server.request::<lsp::request::ResolveCompletionItem>(completion);
940 let Some(completion_item) = request.await.log_err() else {
941 return;
942 };
943
944 if let Some(lsp_documentation) = completion_item.documentation {
945 let documentation = language::prepare_completion_documentation(
946 &lsp_documentation,
947 &language_registry,
948 None, // TODO: Try to reasonably work out which language the completion is for
949 )
950 .await;
951
952 let mut completions = completions.write();
953 let completion = &mut completions[completion_index];
954 completion.documentation = Some(documentation);
955 } else {
956 let mut completions = completions.write();
957 let completion = &mut completions[completion_index];
958 completion.documentation = Some(Documentation::Undocumented);
959 }
960 }
961
962 fn visible(&self) -> bool {
963 !self.matches.is_empty()
964 }
965
966 fn render(
967 &self,
968 style: &EditorStyle,
969 max_height: Pixels,
970 workspace: Option<WeakView<Workspace>>,
971 cx: &mut ViewContext<Editor>,
972 ) -> AnyElement {
973 let settings = EditorSettings::get_global(cx);
974 let show_completion_documentation = settings.show_completion_documentation;
975
976 let widest_completion_ix = self
977 .matches
978 .iter()
979 .enumerate()
980 .max_by_key(|(_, mat)| {
981 let completions = self.completions.read();
982 let completion = &completions[mat.candidate_id];
983 let documentation = &completion.documentation;
984
985 let mut len = completion.label.text.chars().count();
986 if let Some(Documentation::SingleLine(text)) = documentation {
987 if show_completion_documentation {
988 len += text.chars().count();
989 }
990 }
991
992 len
993 })
994 .map(|(ix, _)| ix);
995
996 let completions = self.completions.clone();
997 let matches = self.matches.clone();
998 let selected_item = self.selected_item;
999 let style = style.clone();
1000
1001 let multiline_docs = {
1002 let mat = &self.matches[selected_item];
1003 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1004 Some(Documentation::MultiLinePlainText(text)) => {
1005 Some(div().child(SharedString::from(text.clone())))
1006 }
1007 Some(Documentation::MultiLineMarkdown(parsed)) => Some(div().child(
1008 render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
1009 )),
1010 _ => None,
1011 };
1012 multiline_docs.map(|div| {
1013 div.id("multiline_docs")
1014 .max_h(max_height)
1015 .flex_1()
1016 .px_1p5()
1017 .py_1()
1018 .min_w(px(260.))
1019 .max_w(px(640.))
1020 .w(px(500.))
1021 .overflow_y_scroll()
1022 // Prevent a mouse down on documentation from being propagated to the editor,
1023 // because that would move the cursor.
1024 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1025 })
1026 };
1027
1028 let list = uniform_list(
1029 cx.view().clone(),
1030 "completions",
1031 matches.len(),
1032 move |_editor, range, cx| {
1033 let start_ix = range.start;
1034 let completions_guard = completions.read();
1035
1036 matches[range]
1037 .iter()
1038 .enumerate()
1039 .map(|(ix, mat)| {
1040 let item_ix = start_ix + ix;
1041 let candidate_id = mat.candidate_id;
1042 let completion = &completions_guard[candidate_id];
1043
1044 let documentation = if show_completion_documentation {
1045 &completion.documentation
1046 } else {
1047 &None
1048 };
1049
1050 let highlights = gpui::combine_highlights(
1051 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1052 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1053 |(range, mut highlight)| {
1054 // Ignore font weight for syntax highlighting, as we'll use it
1055 // for fuzzy matches.
1056 highlight.font_weight = None;
1057 (range, highlight)
1058 },
1059 ),
1060 );
1061 let completion_label = StyledText::new(completion.label.text.clone())
1062 .with_highlights(&style.text, highlights);
1063 let documentation_label =
1064 if let Some(Documentation::SingleLine(text)) = documentation {
1065 if text.trim().is_empty() {
1066 None
1067 } else {
1068 Some(
1069 h_flex().ml_4().child(
1070 Label::new(text.clone())
1071 .size(LabelSize::Small)
1072 .color(Color::Muted),
1073 ),
1074 )
1075 }
1076 } else {
1077 None
1078 };
1079
1080 div().min_w(px(220.)).max_w(px(540.)).child(
1081 ListItem::new(mat.candidate_id)
1082 .inset(true)
1083 .selected(item_ix == selected_item)
1084 .on_click(cx.listener(move |editor, _event, cx| {
1085 cx.stop_propagation();
1086 editor
1087 .confirm_completion(
1088 &ConfirmCompletion {
1089 item_ix: Some(item_ix),
1090 },
1091 cx,
1092 )
1093 .map(|task| task.detach_and_log_err(cx));
1094 }))
1095 .child(h_flex().overflow_hidden().child(completion_label))
1096 .end_slot::<Div>(documentation_label),
1097 )
1098 })
1099 .collect()
1100 },
1101 )
1102 .max_h(max_height)
1103 .track_scroll(self.scroll_handle.clone())
1104 .with_width_from_item(widest_completion_ix);
1105
1106 Popover::new()
1107 .child(list)
1108 .when_some(multiline_docs, |popover, multiline_docs| {
1109 popover.aside(multiline_docs)
1110 })
1111 .into_any_element()
1112 }
1113
1114 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1115 let mut matches = if let Some(query) = query {
1116 fuzzy::match_strings(
1117 &self.match_candidates,
1118 query,
1119 query.chars().any(|c| c.is_uppercase()),
1120 100,
1121 &Default::default(),
1122 executor,
1123 )
1124 .await
1125 } else {
1126 self.match_candidates
1127 .iter()
1128 .enumerate()
1129 .map(|(candidate_id, candidate)| StringMatch {
1130 candidate_id,
1131 score: Default::default(),
1132 positions: Default::default(),
1133 string: candidate.string.clone(),
1134 })
1135 .collect()
1136 };
1137
1138 // Remove all candidates where the query's start does not match the start of any word in the candidate
1139 if let Some(query) = query {
1140 if let Some(query_start) = query.chars().next() {
1141 matches.retain(|string_match| {
1142 split_words(&string_match.string).any(|word| {
1143 // Check that the first codepoint of the word as lowercase matches the first
1144 // codepoint of the query as lowercase
1145 word.chars()
1146 .flat_map(|codepoint| codepoint.to_lowercase())
1147 .zip(query_start.to_lowercase())
1148 .all(|(word_cp, query_cp)| word_cp == query_cp)
1149 })
1150 });
1151 }
1152 }
1153
1154 let completions = self.completions.read();
1155 matches.sort_unstable_by_key(|mat| {
1156 let completion = &completions[mat.candidate_id];
1157 (
1158 completion.lsp_completion.sort_text.as_ref(),
1159 Reverse(OrderedFloat(mat.score)),
1160 completion.sort_key(),
1161 )
1162 });
1163
1164 for mat in &mut matches {
1165 let completion = &completions[mat.candidate_id];
1166 mat.string = completion.label.text.clone();
1167 for position in &mut mat.positions {
1168 *position += completion.label.filter_range.start;
1169 }
1170 }
1171 drop(completions);
1172
1173 self.matches = matches.into();
1174 self.selected_item = 0;
1175 }
1176}
1177
1178#[derive(Clone)]
1179struct CodeActionsMenu {
1180 actions: Arc<[CodeAction]>,
1181 buffer: Model<Buffer>,
1182 selected_item: usize,
1183 scroll_handle: UniformListScrollHandle,
1184 deployed_from_indicator: bool,
1185}
1186
1187impl CodeActionsMenu {
1188 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1189 self.selected_item = 0;
1190 self.scroll_handle.scroll_to_item(self.selected_item);
1191 cx.notify()
1192 }
1193
1194 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1195 if self.selected_item > 0 {
1196 self.selected_item -= 1;
1197 } else {
1198 self.selected_item = self.actions.len() - 1;
1199 }
1200 self.scroll_handle.scroll_to_item(self.selected_item);
1201 cx.notify();
1202 }
1203
1204 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1205 if self.selected_item + 1 < self.actions.len() {
1206 self.selected_item += 1;
1207 } else {
1208 self.selected_item = 0;
1209 }
1210 self.scroll_handle.scroll_to_item(self.selected_item);
1211 cx.notify();
1212 }
1213
1214 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1215 self.selected_item = self.actions.len() - 1;
1216 self.scroll_handle.scroll_to_item(self.selected_item);
1217 cx.notify()
1218 }
1219
1220 fn visible(&self) -> bool {
1221 !self.actions.is_empty()
1222 }
1223
1224 fn render(
1225 &self,
1226 mut cursor_position: DisplayPoint,
1227 _style: &EditorStyle,
1228 max_height: Pixels,
1229 cx: &mut ViewContext<Editor>,
1230 ) -> (DisplayPoint, AnyElement) {
1231 let actions = self.actions.clone();
1232 let selected_item = self.selected_item;
1233
1234 let element = uniform_list(
1235 cx.view().clone(),
1236 "code_actions_menu",
1237 self.actions.len(),
1238 move |_this, range, cx| {
1239 actions[range.clone()]
1240 .iter()
1241 .enumerate()
1242 .map(|(ix, action)| {
1243 let item_ix = range.start + ix;
1244 let selected = selected_item == item_ix;
1245 let colors = cx.theme().colors();
1246 div()
1247 .px_2()
1248 .text_color(colors.text)
1249 .when(selected, |style| {
1250 style
1251 .bg(colors.element_active)
1252 .text_color(colors.text_accent)
1253 })
1254 .hover(|style| {
1255 style
1256 .bg(colors.element_hover)
1257 .text_color(colors.text_accent)
1258 })
1259 .on_mouse_down(
1260 MouseButton::Left,
1261 cx.listener(move |editor, _, cx| {
1262 cx.stop_propagation();
1263 editor
1264 .confirm_code_action(
1265 &ConfirmCodeAction {
1266 item_ix: Some(item_ix),
1267 },
1268 cx,
1269 )
1270 .map(|task| task.detach_and_log_err(cx));
1271 }),
1272 )
1273 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1274 .child(SharedString::from(action.lsp_action.title.clone()))
1275 })
1276 .collect()
1277 },
1278 )
1279 .elevation_1(cx)
1280 .px_2()
1281 .py_1()
1282 .max_h(max_height)
1283 .track_scroll(self.scroll_handle.clone())
1284 .with_width_from_item(
1285 self.actions
1286 .iter()
1287 .enumerate()
1288 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1289 .map(|(ix, _)| ix),
1290 )
1291 .into_any_element();
1292
1293 if self.deployed_from_indicator {
1294 *cursor_position.column_mut() = 0;
1295 }
1296
1297 (cursor_position, element)
1298 }
1299}
1300
1301pub(crate) struct CopilotState {
1302 excerpt_id: Option<ExcerptId>,
1303 pending_refresh: Task<Option<()>>,
1304 pending_cycling_refresh: Task<Option<()>>,
1305 cycled: bool,
1306 completions: Vec<copilot::Completion>,
1307 active_completion_index: usize,
1308 suggestion: Option<Inlay>,
1309}
1310
1311impl Default for CopilotState {
1312 fn default() -> Self {
1313 Self {
1314 excerpt_id: None,
1315 pending_cycling_refresh: Task::ready(Some(())),
1316 pending_refresh: Task::ready(Some(())),
1317 completions: Default::default(),
1318 active_completion_index: 0,
1319 cycled: false,
1320 suggestion: None,
1321 }
1322 }
1323}
1324
1325impl CopilotState {
1326 fn active_completion(&self) -> Option<&copilot::Completion> {
1327 self.completions.get(self.active_completion_index)
1328 }
1329
1330 fn text_for_active_completion(
1331 &self,
1332 cursor: Anchor,
1333 buffer: &MultiBufferSnapshot,
1334 ) -> Option<&str> {
1335 use language::ToOffset as _;
1336
1337 let completion = self.active_completion()?;
1338 let excerpt_id = self.excerpt_id?;
1339 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1340 if excerpt_id != cursor.excerpt_id
1341 || !completion.range.start.is_valid(completion_buffer)
1342 || !completion.range.end.is_valid(completion_buffer)
1343 {
1344 return None;
1345 }
1346
1347 let mut completion_range = completion.range.to_offset(&completion_buffer);
1348 let prefix_len = Self::common_prefix(
1349 completion_buffer.chars_for_range(completion_range.clone()),
1350 completion.text.chars(),
1351 );
1352 completion_range.start += prefix_len;
1353 let suffix_len = Self::common_prefix(
1354 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1355 completion.text[prefix_len..].chars().rev(),
1356 );
1357 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1358
1359 if completion_range.is_empty()
1360 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1361 {
1362 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1363 } else {
1364 None
1365 }
1366 }
1367
1368 fn cycle_completions(&mut self, direction: Direction) {
1369 match direction {
1370 Direction::Prev => {
1371 self.active_completion_index = if self.active_completion_index == 0 {
1372 self.completions.len().saturating_sub(1)
1373 } else {
1374 self.active_completion_index - 1
1375 };
1376 }
1377 Direction::Next => {
1378 if self.completions.len() == 0 {
1379 self.active_completion_index = 0
1380 } else {
1381 self.active_completion_index =
1382 (self.active_completion_index + 1) % self.completions.len();
1383 }
1384 }
1385 }
1386 }
1387
1388 fn push_completion(&mut self, new_completion: copilot::Completion) {
1389 for completion in &self.completions {
1390 if completion.text == new_completion.text && completion.range == new_completion.range {
1391 return;
1392 }
1393 }
1394 self.completions.push(new_completion);
1395 }
1396
1397 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1398 a.zip(b)
1399 .take_while(|(a, b)| a == b)
1400 .map(|(a, _)| a.len_utf8())
1401 .sum()
1402 }
1403}
1404
1405#[derive(Debug)]
1406struct ActiveDiagnosticGroup {
1407 primary_range: Range<Anchor>,
1408 primary_message: String,
1409 blocks: HashMap<BlockId, Diagnostic>,
1410 is_valid: bool,
1411}
1412
1413#[derive(Serialize, Deserialize)]
1414pub struct ClipboardSelection {
1415 pub len: usize,
1416 pub is_entire_line: bool,
1417 pub first_line_indent: u32,
1418}
1419
1420#[derive(Debug)]
1421pub(crate) struct NavigationData {
1422 cursor_anchor: Anchor,
1423 cursor_position: Point,
1424 scroll_anchor: ScrollAnchor,
1425 scroll_top_row: u32,
1426}
1427
1428enum GotoDefinitionKind {
1429 Symbol,
1430 Type,
1431}
1432
1433#[derive(Debug, Clone)]
1434enum InlayHintRefreshReason {
1435 Toggle(bool),
1436 SettingsChange(InlayHintSettings),
1437 NewLinesShown,
1438 BufferEdited(HashSet<Arc<Language>>),
1439 RefreshRequested,
1440 ExcerptsRemoved(Vec<ExcerptId>),
1441}
1442impl InlayHintRefreshReason {
1443 fn description(&self) -> &'static str {
1444 match self {
1445 Self::Toggle(_) => "toggle",
1446 Self::SettingsChange(_) => "settings change",
1447 Self::NewLinesShown => "new lines shown",
1448 Self::BufferEdited(_) => "buffer edited",
1449 Self::RefreshRequested => "refresh requested",
1450 Self::ExcerptsRemoved(_) => "excerpts removed",
1451 }
1452 }
1453}
1454
1455impl Editor {
1456 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1457 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1458 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1459 Self::new(EditorMode::SingleLine, buffer, None, cx)
1460 }
1461
1462 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1463 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1464 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1465 Self::new(EditorMode::Full, buffer, None, cx)
1466 }
1467
1468 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1469 let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), String::new()));
1470 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1471 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1472 }
1473
1474 pub fn for_buffer(
1475 buffer: Model<Buffer>,
1476 project: Option<Model<Project>>,
1477 cx: &mut ViewContext<Self>,
1478 ) -> Self {
1479 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1480 Self::new(EditorMode::Full, buffer, project, cx)
1481 }
1482
1483 pub fn for_multibuffer(
1484 buffer: Model<MultiBuffer>,
1485 project: Option<Model<Project>>,
1486 cx: &mut ViewContext<Self>,
1487 ) -> Self {
1488 Self::new(EditorMode::Full, buffer, project, cx)
1489 }
1490
1491 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1492 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1493 self.display_map.update(cx, |display_map, cx| {
1494 let snapshot = display_map.snapshot(cx);
1495 clone.display_map.update(cx, |display_map, cx| {
1496 display_map.set_state(&snapshot, cx);
1497 });
1498 });
1499 clone.selections.clone_state(&self.selections);
1500 clone.scroll_manager.clone_state(&self.scroll_manager);
1501 clone.searchable = self.searchable;
1502 clone
1503 }
1504
1505 fn new(
1506 mode: EditorMode,
1507 buffer: Model<MultiBuffer>,
1508 project: Option<Model<Project>>,
1509 cx: &mut ViewContext<Self>,
1510 ) -> Self {
1511 let style = cx.text_style();
1512 let font_size = style.font_size.to_pixels(cx.rem_size());
1513 let display_map = cx.new_model(|cx| {
1514 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1515 });
1516
1517 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1518
1519 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1520
1521 let soft_wrap_mode_override =
1522 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1523
1524 let mut project_subscriptions = Vec::new();
1525 if mode == EditorMode::Full {
1526 if let Some(project) = project.as_ref() {
1527 if buffer.read(cx).is_singleton() {
1528 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1529 cx.emit(EditorEvent::TitleChanged);
1530 }));
1531 }
1532 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1533 if let project::Event::RefreshInlayHints = event {
1534 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1535 };
1536 }));
1537 }
1538 }
1539
1540 let inlay_hint_settings = inlay_hint_settings(
1541 selections.newest_anchor().head(),
1542 &buffer.read(cx).snapshot(cx),
1543 cx,
1544 );
1545
1546 let focus_handle = cx.focus_handle();
1547 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1548 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1549
1550 let mut this = Self {
1551 handle: cx.view().downgrade(),
1552 focus_handle,
1553 buffer: buffer.clone(),
1554 display_map: display_map.clone(),
1555 selections,
1556 scroll_manager: ScrollManager::new(),
1557 columnar_selection_tail: None,
1558 add_selections_state: None,
1559 select_next_state: None,
1560 select_prev_state: None,
1561 selection_history: Default::default(),
1562 autoclose_regions: Default::default(),
1563 snippet_stack: Default::default(),
1564 select_larger_syntax_node_stack: Vec::new(),
1565 ime_transaction: Default::default(),
1566 active_diagnostics: None,
1567 soft_wrap_mode_override,
1568 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1569 project,
1570 blink_manager: blink_manager.clone(),
1571 show_local_selections: true,
1572 mode,
1573 show_gutter: mode == EditorMode::Full,
1574 show_wrap_guides: None,
1575 placeholder_text: None,
1576 highlighted_rows: None,
1577 background_highlights: Default::default(),
1578 inlay_background_highlights: Default::default(),
1579 nav_history: None,
1580 context_menu: RwLock::new(None),
1581 mouse_context_menu: None,
1582 completion_tasks: Default::default(),
1583 next_completion_id: 0,
1584 next_inlay_id: 0,
1585 available_code_actions: Default::default(),
1586 code_actions_task: Default::default(),
1587 document_highlights_task: Default::default(),
1588 pending_rename: Default::default(),
1589 searchable: true,
1590 cursor_shape: Default::default(),
1591 autoindent_mode: Some(AutoindentMode::EachLine),
1592 collapse_matches: false,
1593 workspace: None,
1594 keymap_context_layers: Default::default(),
1595 input_enabled: true,
1596 read_only: false,
1597 leader_peer_id: None,
1598 remote_id: None,
1599 hover_state: Default::default(),
1600 link_go_to_definition_state: Default::default(),
1601 copilot_state: Default::default(),
1602 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1603 gutter_hovered: false,
1604 pixel_position_of_newest_cursor: None,
1605 gutter_width: Default::default(),
1606 style: None,
1607 editor_actions: Default::default(),
1608 show_copilot_suggestions: mode == EditorMode::Full,
1609 _subscriptions: vec![
1610 cx.observe(&buffer, Self::on_buffer_changed),
1611 cx.subscribe(&buffer, Self::on_buffer_event),
1612 cx.observe(&display_map, Self::on_display_map_changed),
1613 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1614 cx.observe_global::<SettingsStore>(Self::settings_changed),
1615 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1616 cx.observe_window_activation(|editor, cx| {
1617 let active = cx.is_window_active();
1618 editor.blink_manager.update(cx, |blink_manager, cx| {
1619 if active {
1620 blink_manager.enable(cx);
1621 } else {
1622 blink_manager.show_cursor(cx);
1623 blink_manager.disable(cx);
1624 }
1625 });
1626 }),
1627 ],
1628 };
1629
1630 this._subscriptions.extend(project_subscriptions);
1631
1632 this.end_selection(cx);
1633 this.scroll_manager.show_scrollbar(cx);
1634
1635 if mode == EditorMode::Full {
1636 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1637 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1638 }
1639
1640 this.report_editor_event("open", None, cx);
1641 this
1642 }
1643
1644 fn key_context(&self, cx: &AppContext) -> KeyContext {
1645 let mut key_context = KeyContext::default();
1646 key_context.add("Editor");
1647 let mode = match self.mode {
1648 EditorMode::SingleLine => "single_line",
1649 EditorMode::AutoHeight { .. } => "auto_height",
1650 EditorMode::Full => "full",
1651 };
1652 key_context.set("mode", mode);
1653 if self.pending_rename.is_some() {
1654 key_context.add("renaming");
1655 }
1656 if self.context_menu_visible() {
1657 match self.context_menu.read().as_ref() {
1658 Some(ContextMenu::Completions(_)) => {
1659 key_context.add("menu");
1660 key_context.add("showing_completions")
1661 }
1662 Some(ContextMenu::CodeActions(_)) => {
1663 key_context.add("menu");
1664 key_context.add("showing_code_actions")
1665 }
1666 None => {}
1667 }
1668 }
1669
1670 for layer in self.keymap_context_layers.values() {
1671 key_context.extend(layer);
1672 }
1673
1674 if let Some(extension) = self
1675 .buffer
1676 .read(cx)
1677 .as_singleton()
1678 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1679 {
1680 key_context.set("extension", extension.to_string());
1681 }
1682
1683 key_context
1684 }
1685
1686 pub fn new_file(
1687 workspace: &mut Workspace,
1688 _: &workspace::NewFile,
1689 cx: &mut ViewContext<Workspace>,
1690 ) {
1691 let project = workspace.project().clone();
1692 if project.read(cx).is_remote() {
1693 cx.propagate();
1694 } else if let Some(buffer) = project
1695 .update(cx, |project, cx| project.create_buffer("", None, cx))
1696 .log_err()
1697 {
1698 workspace.add_item(
1699 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1700 cx,
1701 );
1702 }
1703 }
1704
1705 pub fn new_file_in_direction(
1706 workspace: &mut Workspace,
1707 action: &workspace::NewFileInDirection,
1708 cx: &mut ViewContext<Workspace>,
1709 ) {
1710 let project = workspace.project().clone();
1711 if project.read(cx).is_remote() {
1712 cx.propagate();
1713 } else if let Some(buffer) = project
1714 .update(cx, |project, cx| project.create_buffer("", None, cx))
1715 .log_err()
1716 {
1717 workspace.split_item(
1718 action.0,
1719 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1720 cx,
1721 );
1722 }
1723 }
1724
1725 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1726 self.buffer.read(cx).replica_id()
1727 }
1728
1729 pub fn leader_peer_id(&self) -> Option<PeerId> {
1730 self.leader_peer_id
1731 }
1732
1733 pub fn buffer(&self) -> &Model<MultiBuffer> {
1734 &self.buffer
1735 }
1736
1737 pub fn workspace(&self) -> Option<View<Workspace>> {
1738 self.workspace.as_ref()?.0.upgrade()
1739 }
1740
1741 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1742 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1743 }
1744
1745 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1746 self.buffer().read(cx).title(cx)
1747 }
1748
1749 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1750 EditorSnapshot {
1751 mode: self.mode,
1752 show_gutter: self.show_gutter,
1753 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1754 scroll_anchor: self.scroll_manager.anchor(),
1755 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1756 placeholder_text: self.placeholder_text.clone(),
1757 is_focused: self.focus_handle.is_focused(cx),
1758 }
1759 }
1760
1761 pub fn language_at<'a, T: ToOffset>(
1762 &self,
1763 point: T,
1764 cx: &'a AppContext,
1765 ) -> Option<Arc<Language>> {
1766 self.buffer.read(cx).language_at(point, cx)
1767 }
1768
1769 pub fn file_at<'a, T: ToOffset>(
1770 &self,
1771 point: T,
1772 cx: &'a AppContext,
1773 ) -> Option<Arc<dyn language::File>> {
1774 self.buffer.read(cx).read(cx).file_at(point).cloned()
1775 }
1776
1777 pub fn active_excerpt(
1778 &self,
1779 cx: &AppContext,
1780 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1781 self.buffer
1782 .read(cx)
1783 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1784 }
1785
1786 pub fn mode(&self) -> EditorMode {
1787 self.mode
1788 }
1789
1790 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1791 self.collaboration_hub.as_deref()
1792 }
1793
1794 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1795 self.collaboration_hub = Some(hub);
1796 }
1797
1798 pub fn placeholder_text(&self) -> Option<&str> {
1799 self.placeholder_text.as_deref()
1800 }
1801
1802 pub fn set_placeholder_text(
1803 &mut self,
1804 placeholder_text: impl Into<Arc<str>>,
1805 cx: &mut ViewContext<Self>,
1806 ) {
1807 let placeholder_text = Some(placeholder_text.into());
1808 if self.placeholder_text != placeholder_text {
1809 self.placeholder_text = placeholder_text;
1810 cx.notify();
1811 }
1812 }
1813
1814 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1815 self.cursor_shape = cursor_shape;
1816 cx.notify();
1817 }
1818
1819 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1820 self.collapse_matches = collapse_matches;
1821 }
1822
1823 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1824 if self.collapse_matches {
1825 return range.start..range.start;
1826 }
1827 range.clone()
1828 }
1829
1830 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1831 if self.display_map.read(cx).clip_at_line_ends != clip {
1832 self.display_map
1833 .update(cx, |map, _| map.clip_at_line_ends = clip);
1834 }
1835 }
1836
1837 pub fn set_keymap_context_layer<Tag: 'static>(
1838 &mut self,
1839 context: KeyContext,
1840 cx: &mut ViewContext<Self>,
1841 ) {
1842 self.keymap_context_layers
1843 .insert(TypeId::of::<Tag>(), context);
1844 cx.notify();
1845 }
1846
1847 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1848 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1849 cx.notify();
1850 }
1851
1852 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1853 self.input_enabled = input_enabled;
1854 }
1855
1856 pub fn set_autoindent(&mut self, autoindent: bool) {
1857 if autoindent {
1858 self.autoindent_mode = Some(AutoindentMode::EachLine);
1859 } else {
1860 self.autoindent_mode = None;
1861 }
1862 }
1863
1864 pub fn read_only(&self, cx: &AppContext) -> bool {
1865 self.read_only || self.buffer.read(cx).read_only()
1866 }
1867
1868 pub fn set_read_only(&mut self, read_only: bool) {
1869 self.read_only = read_only;
1870 }
1871
1872 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1873 self.show_copilot_suggestions = show_copilot_suggestions;
1874 }
1875
1876 fn selections_did_change(
1877 &mut self,
1878 local: bool,
1879 old_cursor_position: &Anchor,
1880 cx: &mut ViewContext<Self>,
1881 ) {
1882 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1883 self.buffer.update(cx, |buffer, cx| {
1884 buffer.set_active_selections(
1885 &self.selections.disjoint_anchors(),
1886 self.selections.line_mode,
1887 self.cursor_shape,
1888 cx,
1889 )
1890 });
1891 }
1892
1893 let display_map = self
1894 .display_map
1895 .update(cx, |display_map, cx| display_map.snapshot(cx));
1896 let buffer = &display_map.buffer_snapshot;
1897 self.add_selections_state = None;
1898 self.select_next_state = None;
1899 self.select_prev_state = None;
1900 self.select_larger_syntax_node_stack.clear();
1901 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1902 self.snippet_stack
1903 .invalidate(&self.selections.disjoint_anchors(), buffer);
1904 self.take_rename(false, cx);
1905
1906 let new_cursor_position = self.selections.newest_anchor().head();
1907
1908 self.push_to_nav_history(
1909 old_cursor_position.clone(),
1910 Some(new_cursor_position.to_point(buffer)),
1911 cx,
1912 );
1913
1914 if local {
1915 let new_cursor_position = self.selections.newest_anchor().head();
1916 let mut context_menu = self.context_menu.write();
1917 let completion_menu = match context_menu.as_ref() {
1918 Some(ContextMenu::Completions(menu)) => Some(menu),
1919
1920 _ => {
1921 *context_menu = None;
1922 None
1923 }
1924 };
1925
1926 if let Some(completion_menu) = completion_menu {
1927 let cursor_position = new_cursor_position.to_offset(buffer);
1928 let (word_range, kind) =
1929 buffer.surrounding_word(completion_menu.initial_position.clone());
1930 if kind == Some(CharKind::Word)
1931 && word_range.to_inclusive().contains(&cursor_position)
1932 {
1933 let mut completion_menu = completion_menu.clone();
1934 drop(context_menu);
1935
1936 let query = Self::completion_query(buffer, cursor_position);
1937 cx.spawn(move |this, mut cx| async move {
1938 completion_menu
1939 .filter(query.as_deref(), cx.background_executor().clone())
1940 .await;
1941
1942 this.update(&mut cx, |this, cx| {
1943 let mut context_menu = this.context_menu.write();
1944 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1945 return;
1946 };
1947
1948 if menu.id > completion_menu.id {
1949 return;
1950 }
1951
1952 *context_menu = Some(ContextMenu::Completions(completion_menu));
1953 drop(context_menu);
1954 cx.notify();
1955 })
1956 })
1957 .detach();
1958
1959 self.show_completions(&ShowCompletions, cx);
1960 } else {
1961 drop(context_menu);
1962 self.hide_context_menu(cx);
1963 }
1964 } else {
1965 drop(context_menu);
1966 }
1967
1968 hide_hover(self, cx);
1969
1970 if old_cursor_position.to_display_point(&display_map).row()
1971 != new_cursor_position.to_display_point(&display_map).row()
1972 {
1973 self.available_code_actions.take();
1974 }
1975 self.refresh_code_actions(cx);
1976 self.refresh_document_highlights(cx);
1977 refresh_matching_bracket_highlights(self, cx);
1978 self.discard_copilot_suggestion(cx);
1979 }
1980
1981 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1982 cx.emit(EditorEvent::SelectionsChanged { local });
1983
1984 if self.selections.disjoint_anchors().len() == 1 {
1985 cx.emit(SearchEvent::ActiveMatchChanged)
1986 }
1987
1988 cx.notify();
1989 }
1990
1991 pub fn change_selections<R>(
1992 &mut self,
1993 autoscroll: Option<Autoscroll>,
1994 cx: &mut ViewContext<Self>,
1995 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1996 ) -> R {
1997 let old_cursor_position = self.selections.newest_anchor().head();
1998 self.push_to_selection_history();
1999
2000 let (changed, result) = self.selections.change_with(cx, change);
2001
2002 if changed {
2003 if let Some(autoscroll) = autoscroll {
2004 self.request_autoscroll(autoscroll, cx);
2005 }
2006 self.selections_did_change(true, &old_cursor_position, cx);
2007 }
2008
2009 result
2010 }
2011
2012 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2013 where
2014 I: IntoIterator<Item = (Range<S>, T)>,
2015 S: ToOffset,
2016 T: Into<Arc<str>>,
2017 {
2018 if self.read_only(cx) {
2019 return;
2020 }
2021
2022 self.buffer
2023 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2024 }
2025
2026 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2027 where
2028 I: IntoIterator<Item = (Range<S>, T)>,
2029 S: ToOffset,
2030 T: Into<Arc<str>>,
2031 {
2032 if self.read_only(cx) {
2033 return;
2034 }
2035
2036 self.buffer.update(cx, |buffer, cx| {
2037 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2038 });
2039 }
2040
2041 pub fn edit_with_block_indent<I, S, T>(
2042 &mut self,
2043 edits: I,
2044 original_indent_columns: Vec<u32>,
2045 cx: &mut ViewContext<Self>,
2046 ) where
2047 I: IntoIterator<Item = (Range<S>, T)>,
2048 S: ToOffset,
2049 T: Into<Arc<str>>,
2050 {
2051 if self.read_only(cx) {
2052 return;
2053 }
2054
2055 self.buffer.update(cx, |buffer, cx| {
2056 buffer.edit(
2057 edits,
2058 Some(AutoindentMode::Block {
2059 original_indent_columns,
2060 }),
2061 cx,
2062 )
2063 });
2064 }
2065
2066 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2067 self.hide_context_menu(cx);
2068
2069 match phase {
2070 SelectPhase::Begin {
2071 position,
2072 add,
2073 click_count,
2074 } => self.begin_selection(position, add, click_count, cx),
2075 SelectPhase::BeginColumnar {
2076 position,
2077 goal_column,
2078 } => self.begin_columnar_selection(position, goal_column, cx),
2079 SelectPhase::Extend {
2080 position,
2081 click_count,
2082 } => self.extend_selection(position, click_count, cx),
2083 SelectPhase::Update {
2084 position,
2085 goal_column,
2086 scroll_position,
2087 } => self.update_selection(position, goal_column, scroll_position, cx),
2088 SelectPhase::End => self.end_selection(cx),
2089 }
2090 }
2091
2092 fn extend_selection(
2093 &mut self,
2094 position: DisplayPoint,
2095 click_count: usize,
2096 cx: &mut ViewContext<Self>,
2097 ) {
2098 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2099 let tail = self.selections.newest::<usize>(cx).tail();
2100 self.begin_selection(position, false, click_count, cx);
2101
2102 let position = position.to_offset(&display_map, Bias::Left);
2103 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2104
2105 let mut pending_selection = self
2106 .selections
2107 .pending_anchor()
2108 .expect("extend_selection not called with pending selection");
2109 if position >= tail {
2110 pending_selection.start = tail_anchor;
2111 } else {
2112 pending_selection.end = tail_anchor;
2113 pending_selection.reversed = true;
2114 }
2115
2116 let mut pending_mode = self.selections.pending_mode().unwrap();
2117 match &mut pending_mode {
2118 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2119 _ => {}
2120 }
2121
2122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2123 s.set_pending(pending_selection, pending_mode)
2124 });
2125 }
2126
2127 fn begin_selection(
2128 &mut self,
2129 position: DisplayPoint,
2130 add: bool,
2131 click_count: usize,
2132 cx: &mut ViewContext<Self>,
2133 ) {
2134 if !self.focus_handle.is_focused(cx) {
2135 cx.focus(&self.focus_handle);
2136 }
2137
2138 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2139 let buffer = &display_map.buffer_snapshot;
2140 let newest_selection = self.selections.newest_anchor().clone();
2141 let position = display_map.clip_point(position, Bias::Left);
2142
2143 let start;
2144 let end;
2145 let mode;
2146 let auto_scroll;
2147 match click_count {
2148 1 => {
2149 start = buffer.anchor_before(position.to_point(&display_map));
2150 end = start.clone();
2151 mode = SelectMode::Character;
2152 auto_scroll = true;
2153 }
2154 2 => {
2155 let range = movement::surrounding_word(&display_map, position);
2156 start = buffer.anchor_before(range.start.to_point(&display_map));
2157 end = buffer.anchor_before(range.end.to_point(&display_map));
2158 mode = SelectMode::Word(start.clone()..end.clone());
2159 auto_scroll = true;
2160 }
2161 3 => {
2162 let position = display_map
2163 .clip_point(position, Bias::Left)
2164 .to_point(&display_map);
2165 let line_start = display_map.prev_line_boundary(position).0;
2166 let next_line_start = buffer.clip_point(
2167 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2168 Bias::Left,
2169 );
2170 start = buffer.anchor_before(line_start);
2171 end = buffer.anchor_before(next_line_start);
2172 mode = SelectMode::Line(start.clone()..end.clone());
2173 auto_scroll = true;
2174 }
2175 _ => {
2176 start = buffer.anchor_before(0);
2177 end = buffer.anchor_before(buffer.len());
2178 mode = SelectMode::All;
2179 auto_scroll = false;
2180 }
2181 }
2182
2183 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2184 if !add {
2185 s.clear_disjoint();
2186 } else if click_count > 1 {
2187 s.delete(newest_selection.id)
2188 }
2189
2190 s.set_pending_anchor_range(start..end, mode);
2191 });
2192 }
2193
2194 fn begin_columnar_selection(
2195 &mut self,
2196 position: DisplayPoint,
2197 goal_column: u32,
2198 cx: &mut ViewContext<Self>,
2199 ) {
2200 if !self.focus_handle.is_focused(cx) {
2201 cx.focus(&self.focus_handle);
2202 }
2203
2204 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2205 let tail = self.selections.newest::<Point>(cx).tail();
2206 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2207
2208 self.select_columns(
2209 tail.to_display_point(&display_map),
2210 position,
2211 goal_column,
2212 &display_map,
2213 cx,
2214 );
2215 }
2216
2217 fn update_selection(
2218 &mut self,
2219 position: DisplayPoint,
2220 goal_column: u32,
2221 scroll_position: gpui::Point<f32>,
2222 cx: &mut ViewContext<Self>,
2223 ) {
2224 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2225
2226 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2227 let tail = tail.to_display_point(&display_map);
2228 self.select_columns(tail, position, goal_column, &display_map, cx);
2229 } else if let Some(mut pending) = self.selections.pending_anchor() {
2230 let buffer = self.buffer.read(cx).snapshot(cx);
2231 let head;
2232 let tail;
2233 let mode = self.selections.pending_mode().unwrap();
2234 match &mode {
2235 SelectMode::Character => {
2236 head = position.to_point(&display_map);
2237 tail = pending.tail().to_point(&buffer);
2238 }
2239 SelectMode::Word(original_range) => {
2240 let original_display_range = original_range.start.to_display_point(&display_map)
2241 ..original_range.end.to_display_point(&display_map);
2242 let original_buffer_range = original_display_range.start.to_point(&display_map)
2243 ..original_display_range.end.to_point(&display_map);
2244 if movement::is_inside_word(&display_map, position)
2245 || original_display_range.contains(&position)
2246 {
2247 let word_range = movement::surrounding_word(&display_map, position);
2248 if word_range.start < original_display_range.start {
2249 head = word_range.start.to_point(&display_map);
2250 } else {
2251 head = word_range.end.to_point(&display_map);
2252 }
2253 } else {
2254 head = position.to_point(&display_map);
2255 }
2256
2257 if head <= original_buffer_range.start {
2258 tail = original_buffer_range.end;
2259 } else {
2260 tail = original_buffer_range.start;
2261 }
2262 }
2263 SelectMode::Line(original_range) => {
2264 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2265
2266 let position = display_map
2267 .clip_point(position, Bias::Left)
2268 .to_point(&display_map);
2269 let line_start = display_map.prev_line_boundary(position).0;
2270 let next_line_start = buffer.clip_point(
2271 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2272 Bias::Left,
2273 );
2274
2275 if line_start < original_range.start {
2276 head = line_start
2277 } else {
2278 head = next_line_start
2279 }
2280
2281 if head <= original_range.start {
2282 tail = original_range.end;
2283 } else {
2284 tail = original_range.start;
2285 }
2286 }
2287 SelectMode::All => {
2288 return;
2289 }
2290 };
2291
2292 if head < tail {
2293 pending.start = buffer.anchor_before(head);
2294 pending.end = buffer.anchor_before(tail);
2295 pending.reversed = true;
2296 } else {
2297 pending.start = buffer.anchor_before(tail);
2298 pending.end = buffer.anchor_before(head);
2299 pending.reversed = false;
2300 }
2301
2302 self.change_selections(None, cx, |s| {
2303 s.set_pending(pending, mode);
2304 });
2305 } else {
2306 log::error!("update_selection dispatched with no pending selection");
2307 return;
2308 }
2309
2310 self.set_scroll_position(scroll_position, cx);
2311 cx.notify();
2312 }
2313
2314 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2315 self.columnar_selection_tail.take();
2316 if self.selections.pending_anchor().is_some() {
2317 let selections = self.selections.all::<usize>(cx);
2318 self.change_selections(None, cx, |s| {
2319 s.select(selections);
2320 s.clear_pending();
2321 });
2322 }
2323 }
2324
2325 fn select_columns(
2326 &mut self,
2327 tail: DisplayPoint,
2328 head: DisplayPoint,
2329 goal_column: u32,
2330 display_map: &DisplaySnapshot,
2331 cx: &mut ViewContext<Self>,
2332 ) {
2333 let start_row = cmp::min(tail.row(), head.row());
2334 let end_row = cmp::max(tail.row(), head.row());
2335 let start_column = cmp::min(tail.column(), goal_column);
2336 let end_column = cmp::max(tail.column(), goal_column);
2337 let reversed = start_column < tail.column();
2338
2339 let selection_ranges = (start_row..=end_row)
2340 .filter_map(|row| {
2341 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2342 let start = display_map
2343 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2344 .to_point(display_map);
2345 let end = display_map
2346 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2347 .to_point(display_map);
2348 if reversed {
2349 Some(end..start)
2350 } else {
2351 Some(start..end)
2352 }
2353 } else {
2354 None
2355 }
2356 })
2357 .collect::<Vec<_>>();
2358
2359 self.change_selections(None, cx, |s| {
2360 s.select_ranges(selection_ranges);
2361 });
2362 cx.notify();
2363 }
2364
2365 pub fn has_pending_nonempty_selection(&self) -> bool {
2366 let pending_nonempty_selection = match self.selections.pending_anchor() {
2367 Some(Selection { start, end, .. }) => start != end,
2368 None => false,
2369 };
2370 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2371 }
2372
2373 pub fn has_pending_selection(&self) -> bool {
2374 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2375 }
2376
2377 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2378 if self.take_rename(false, cx).is_some() {
2379 return;
2380 }
2381
2382 if hide_hover(self, cx) {
2383 return;
2384 }
2385
2386 if self.hide_context_menu(cx).is_some() {
2387 return;
2388 }
2389
2390 if self.discard_copilot_suggestion(cx) {
2391 return;
2392 }
2393
2394 if self.snippet_stack.pop().is_some() {
2395 return;
2396 }
2397
2398 if self.mode == EditorMode::Full {
2399 if self.active_diagnostics.is_some() {
2400 self.dismiss_diagnostics(cx);
2401 return;
2402 }
2403
2404 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2405 return;
2406 }
2407 }
2408
2409 cx.propagate();
2410 }
2411
2412 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2413 let text: Arc<str> = text.into();
2414
2415 if self.read_only(cx) {
2416 return;
2417 }
2418
2419 let selections = self.selections.all_adjusted(cx);
2420 let mut brace_inserted = false;
2421 let mut edits = Vec::new();
2422 let mut new_selections = Vec::with_capacity(selections.len());
2423 let mut new_autoclose_regions = Vec::new();
2424 let snapshot = self.buffer.read(cx).read(cx);
2425
2426 for (selection, autoclose_region) in
2427 self.selections_with_autoclose_regions(selections, &snapshot)
2428 {
2429 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2430 // Determine if the inserted text matches the opening or closing
2431 // bracket of any of this language's bracket pairs.
2432 let mut bracket_pair = None;
2433 let mut is_bracket_pair_start = false;
2434 if !text.is_empty() {
2435 // `text` can be empty when an user is using IME (e.g. Chinese Wubi Simplified)
2436 // and they are removing the character that triggered IME popup.
2437 for (pair, enabled) in scope.brackets() {
2438 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2439 bracket_pair = Some(pair.clone());
2440 is_bracket_pair_start = true;
2441 break;
2442 } else if pair.end.as_str() == text.as_ref() {
2443 bracket_pair = Some(pair.clone());
2444 break;
2445 }
2446 }
2447 }
2448
2449 if let Some(bracket_pair) = bracket_pair {
2450 if selection.is_empty() {
2451 if is_bracket_pair_start {
2452 let prefix_len = bracket_pair.start.len() - text.len();
2453
2454 // If the inserted text is a suffix of an opening bracket and the
2455 // selection is preceded by the rest of the opening bracket, then
2456 // insert the closing bracket.
2457 let following_text_allows_autoclose = snapshot
2458 .chars_at(selection.start)
2459 .next()
2460 .map_or(true, |c| scope.should_autoclose_before(c));
2461 let preceding_text_matches_prefix = prefix_len == 0
2462 || (selection.start.column >= (prefix_len as u32)
2463 && snapshot.contains_str_at(
2464 Point::new(
2465 selection.start.row,
2466 selection.start.column - (prefix_len as u32),
2467 ),
2468 &bracket_pair.start[..prefix_len],
2469 ));
2470 if following_text_allows_autoclose && preceding_text_matches_prefix {
2471 let anchor = snapshot.anchor_before(selection.end);
2472 new_selections.push((selection.map(|_| anchor), text.len()));
2473 new_autoclose_regions.push((
2474 anchor,
2475 text.len(),
2476 selection.id,
2477 bracket_pair.clone(),
2478 ));
2479 edits.push((
2480 selection.range(),
2481 format!("{}{}", text, bracket_pair.end).into(),
2482 ));
2483 brace_inserted = true;
2484 continue;
2485 }
2486 }
2487
2488 if let Some(region) = autoclose_region {
2489 // If the selection is followed by an auto-inserted closing bracket,
2490 // then don't insert that closing bracket again; just move the selection
2491 // past the closing bracket.
2492 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2493 && text.as_ref() == region.pair.end.as_str();
2494 if should_skip {
2495 let anchor = snapshot.anchor_after(selection.end);
2496 new_selections
2497 .push((selection.map(|_| anchor), region.pair.end.len()));
2498 continue;
2499 }
2500 }
2501 }
2502 // If an opening bracket is 1 character long and is typed while
2503 // text is selected, then surround that text with the bracket pair.
2504 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2505 edits.push((selection.start..selection.start, text.clone()));
2506 edits.push((
2507 selection.end..selection.end,
2508 bracket_pair.end.as_str().into(),
2509 ));
2510 brace_inserted = true;
2511 new_selections.push((
2512 Selection {
2513 id: selection.id,
2514 start: snapshot.anchor_after(selection.start),
2515 end: snapshot.anchor_before(selection.end),
2516 reversed: selection.reversed,
2517 goal: selection.goal,
2518 },
2519 0,
2520 ));
2521 continue;
2522 }
2523 }
2524 }
2525
2526 // If not handling any auto-close operation, then just replace the selected
2527 // text with the given input and move the selection to the end of the
2528 // newly inserted text.
2529 let anchor = snapshot.anchor_after(selection.end);
2530 new_selections.push((selection.map(|_| anchor), 0));
2531 edits.push((selection.start..selection.end, text.clone()));
2532 }
2533
2534 drop(snapshot);
2535 self.transact(cx, |this, cx| {
2536 this.buffer.update(cx, |buffer, cx| {
2537 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2538 });
2539
2540 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2541 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2542 let snapshot = this.buffer.read(cx).read(cx);
2543 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2544 .zip(new_selection_deltas)
2545 .map(|(selection, delta)| Selection {
2546 id: selection.id,
2547 start: selection.start + delta,
2548 end: selection.end + delta,
2549 reversed: selection.reversed,
2550 goal: SelectionGoal::None,
2551 })
2552 .collect::<Vec<_>>();
2553
2554 let mut i = 0;
2555 for (position, delta, selection_id, pair) in new_autoclose_regions {
2556 let position = position.to_offset(&snapshot) + delta;
2557 let start = snapshot.anchor_before(position);
2558 let end = snapshot.anchor_after(position);
2559 while let Some(existing_state) = this.autoclose_regions.get(i) {
2560 match existing_state.range.start.cmp(&start, &snapshot) {
2561 Ordering::Less => i += 1,
2562 Ordering::Greater => break,
2563 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2564 Ordering::Less => i += 1,
2565 Ordering::Equal => break,
2566 Ordering::Greater => break,
2567 },
2568 }
2569 }
2570 this.autoclose_regions.insert(
2571 i,
2572 AutocloseRegion {
2573 selection_id,
2574 range: start..end,
2575 pair,
2576 },
2577 );
2578 }
2579
2580 drop(snapshot);
2581 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2582 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2583
2584 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2585 if let Some(on_type_format_task) =
2586 this.trigger_on_type_formatting(text.to_string(), cx)
2587 {
2588 on_type_format_task.detach_and_log_err(cx);
2589 }
2590 }
2591
2592 if had_active_copilot_suggestion {
2593 this.refresh_copilot_suggestions(true, cx);
2594 if !this.has_active_copilot_suggestion(cx) {
2595 this.trigger_completion_on_input(&text, cx);
2596 }
2597 } else {
2598 this.trigger_completion_on_input(&text, cx);
2599 this.refresh_copilot_suggestions(true, cx);
2600 }
2601 });
2602 }
2603
2604 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2605 self.transact(cx, |this, cx| {
2606 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2607 let selections = this.selections.all::<usize>(cx);
2608 let multi_buffer = this.buffer.read(cx);
2609 let buffer = multi_buffer.snapshot(cx);
2610 selections
2611 .iter()
2612 .map(|selection| {
2613 let start_point = selection.start.to_point(&buffer);
2614 let mut indent = buffer.indent_size_for_line(start_point.row);
2615 indent.len = cmp::min(indent.len, start_point.column);
2616 let start = selection.start;
2617 let end = selection.end;
2618 let is_cursor = start == end;
2619 let language_scope = buffer.language_scope_at(start);
2620 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2621 &language_scope
2622 {
2623 let leading_whitespace_len = buffer
2624 .reversed_chars_at(start)
2625 .take_while(|c| c.is_whitespace() && *c != '\n')
2626 .map(|c| c.len_utf8())
2627 .sum::<usize>();
2628
2629 let trailing_whitespace_len = buffer
2630 .chars_at(end)
2631 .take_while(|c| c.is_whitespace() && *c != '\n')
2632 .map(|c| c.len_utf8())
2633 .sum::<usize>();
2634
2635 let insert_extra_newline =
2636 language.brackets().any(|(pair, enabled)| {
2637 let pair_start = pair.start.trim_end();
2638 let pair_end = pair.end.trim_start();
2639
2640 enabled
2641 && pair.newline
2642 && buffer.contains_str_at(
2643 end + trailing_whitespace_len,
2644 pair_end,
2645 )
2646 && buffer.contains_str_at(
2647 (start - leading_whitespace_len)
2648 .saturating_sub(pair_start.len()),
2649 pair_start,
2650 )
2651 });
2652 // Comment extension on newline is allowed only for cursor selections
2653 let comment_delimiter = language.line_comment_prefix().filter(|_| {
2654 let is_comment_extension_enabled =
2655 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2656 is_cursor && is_comment_extension_enabled
2657 });
2658 let comment_delimiter = if let Some(delimiter) = comment_delimiter {
2659 buffer
2660 .buffer_line_for_row(start_point.row)
2661 .is_some_and(|(snapshot, range)| {
2662 let mut index_of_first_non_whitespace = 0;
2663 let line_starts_with_comment = snapshot
2664 .chars_for_range(range)
2665 .skip_while(|c| {
2666 let should_skip = c.is_whitespace();
2667 if should_skip {
2668 index_of_first_non_whitespace += 1;
2669 }
2670 should_skip
2671 })
2672 .take(delimiter.len())
2673 .eq(delimiter.chars());
2674 let cursor_is_placed_after_comment_marker =
2675 index_of_first_non_whitespace + delimiter.len()
2676 <= start_point.column as usize;
2677 line_starts_with_comment
2678 && cursor_is_placed_after_comment_marker
2679 })
2680 .then(|| delimiter.clone())
2681 } else {
2682 None
2683 };
2684 (comment_delimiter, insert_extra_newline)
2685 } else {
2686 (None, false)
2687 };
2688
2689 let capacity_for_delimiter = comment_delimiter
2690 .as_deref()
2691 .map(str::len)
2692 .unwrap_or_default();
2693 let mut new_text =
2694 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2695 new_text.push_str("\n");
2696 new_text.extend(indent.chars());
2697 if let Some(delimiter) = &comment_delimiter {
2698 new_text.push_str(&delimiter);
2699 }
2700 if insert_extra_newline {
2701 new_text = new_text.repeat(2);
2702 }
2703
2704 let anchor = buffer.anchor_after(end);
2705 let new_selection = selection.map(|_| anchor);
2706 (
2707 (start..end, new_text),
2708 (insert_extra_newline, new_selection),
2709 )
2710 })
2711 .unzip()
2712 };
2713
2714 this.edit_with_autoindent(edits, cx);
2715 let buffer = this.buffer.read(cx).snapshot(cx);
2716 let new_selections = selection_fixup_info
2717 .into_iter()
2718 .map(|(extra_newline_inserted, new_selection)| {
2719 let mut cursor = new_selection.end.to_point(&buffer);
2720 if extra_newline_inserted {
2721 cursor.row -= 1;
2722 cursor.column = buffer.line_len(cursor.row);
2723 }
2724 new_selection.map(|_| cursor)
2725 })
2726 .collect();
2727
2728 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2729 this.refresh_copilot_suggestions(true, cx);
2730 });
2731 }
2732
2733 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2734 let buffer = self.buffer.read(cx);
2735 let snapshot = buffer.snapshot(cx);
2736
2737 let mut edits = Vec::new();
2738 let mut rows = Vec::new();
2739 let mut rows_inserted = 0;
2740
2741 for selection in self.selections.all_adjusted(cx) {
2742 let cursor = selection.head();
2743 let row = cursor.row;
2744
2745 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2746
2747 let newline = "\n".to_string();
2748 edits.push((start_of_line..start_of_line, newline));
2749
2750 rows.push(row + rows_inserted);
2751 rows_inserted += 1;
2752 }
2753
2754 self.transact(cx, |editor, cx| {
2755 editor.edit(edits, cx);
2756
2757 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2758 let mut index = 0;
2759 s.move_cursors_with(|map, _, _| {
2760 let row = rows[index];
2761 index += 1;
2762
2763 let point = Point::new(row, 0);
2764 let boundary = map.next_line_boundary(point).1;
2765 let clipped = map.clip_point(boundary, Bias::Left);
2766
2767 (clipped, SelectionGoal::None)
2768 });
2769 });
2770
2771 let mut indent_edits = Vec::new();
2772 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2773 for row in rows {
2774 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2775 for (row, indent) in indents {
2776 if indent.len == 0 {
2777 continue;
2778 }
2779
2780 let text = match indent.kind {
2781 IndentKind::Space => " ".repeat(indent.len as usize),
2782 IndentKind::Tab => "\t".repeat(indent.len as usize),
2783 };
2784 let point = Point::new(row, 0);
2785 indent_edits.push((point..point, text));
2786 }
2787 }
2788 editor.edit(indent_edits, cx);
2789 });
2790 }
2791
2792 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2793 let buffer = self.buffer.read(cx);
2794 let snapshot = buffer.snapshot(cx);
2795
2796 let mut edits = Vec::new();
2797 let mut rows = Vec::new();
2798 let mut rows_inserted = 0;
2799
2800 for selection in self.selections.all_adjusted(cx) {
2801 let cursor = selection.head();
2802 let row = cursor.row;
2803
2804 let point = Point::new(row + 1, 0);
2805 let start_of_line = snapshot.clip_point(point, Bias::Left);
2806
2807 let newline = "\n".to_string();
2808 edits.push((start_of_line..start_of_line, newline));
2809
2810 rows_inserted += 1;
2811 rows.push(row + rows_inserted);
2812 }
2813
2814 self.transact(cx, |editor, cx| {
2815 editor.edit(edits, cx);
2816
2817 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2818 let mut index = 0;
2819 s.move_cursors_with(|map, _, _| {
2820 let row = rows[index];
2821 index += 1;
2822
2823 let point = Point::new(row, 0);
2824 let boundary = map.next_line_boundary(point).1;
2825 let clipped = map.clip_point(boundary, Bias::Left);
2826
2827 (clipped, SelectionGoal::None)
2828 });
2829 });
2830
2831 let mut indent_edits = Vec::new();
2832 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2833 for row in rows {
2834 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2835 for (row, indent) in indents {
2836 if indent.len == 0 {
2837 continue;
2838 }
2839
2840 let text = match indent.kind {
2841 IndentKind::Space => " ".repeat(indent.len as usize),
2842 IndentKind::Tab => "\t".repeat(indent.len as usize),
2843 };
2844 let point = Point::new(row, 0);
2845 indent_edits.push((point..point, text));
2846 }
2847 }
2848 editor.edit(indent_edits, cx);
2849 });
2850 }
2851
2852 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2853 self.insert_with_autoindent_mode(
2854 text,
2855 Some(AutoindentMode::Block {
2856 original_indent_columns: Vec::new(),
2857 }),
2858 cx,
2859 );
2860 }
2861
2862 fn insert_with_autoindent_mode(
2863 &mut self,
2864 text: &str,
2865 autoindent_mode: Option<AutoindentMode>,
2866 cx: &mut ViewContext<Self>,
2867 ) {
2868 if self.read_only(cx) {
2869 return;
2870 }
2871
2872 let text: Arc<str> = text.into();
2873 self.transact(cx, |this, cx| {
2874 let old_selections = this.selections.all_adjusted(cx);
2875 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2876 let anchors = {
2877 let snapshot = buffer.read(cx);
2878 old_selections
2879 .iter()
2880 .map(|s| {
2881 let anchor = snapshot.anchor_after(s.head());
2882 s.map(|_| anchor)
2883 })
2884 .collect::<Vec<_>>()
2885 };
2886 buffer.edit(
2887 old_selections
2888 .iter()
2889 .map(|s| (s.start..s.end, text.clone())),
2890 autoindent_mode,
2891 cx,
2892 );
2893 anchors
2894 });
2895
2896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2897 s.select_anchors(selection_anchors);
2898 })
2899 });
2900 }
2901
2902 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2903 if !EditorSettings::get_global(cx).show_completions_on_input {
2904 return;
2905 }
2906
2907 let selection = self.selections.newest_anchor();
2908 if self
2909 .buffer
2910 .read(cx)
2911 .is_completion_trigger(selection.head(), text, cx)
2912 {
2913 self.show_completions(&ShowCompletions, cx);
2914 } else {
2915 self.hide_context_menu(cx);
2916 }
2917 }
2918
2919 /// If any empty selections is touching the start of its innermost containing autoclose
2920 /// region, expand it to select the brackets.
2921 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2922 let selections = self.selections.all::<usize>(cx);
2923 let buffer = self.buffer.read(cx).read(cx);
2924 let mut new_selections = Vec::new();
2925 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2926 if let (Some(region), true) = (region, selection.is_empty()) {
2927 let mut range = region.range.to_offset(&buffer);
2928 if selection.start == range.start {
2929 if range.start >= region.pair.start.len() {
2930 range.start -= region.pair.start.len();
2931 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2932 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2933 range.end += region.pair.end.len();
2934 selection.start = range.start;
2935 selection.end = range.end;
2936 }
2937 }
2938 }
2939 }
2940 }
2941 new_selections.push(selection);
2942 }
2943
2944 drop(buffer);
2945 self.change_selections(None, cx, |selections| selections.select(new_selections));
2946 }
2947
2948 /// Iterate the given selections, and for each one, find the smallest surrounding
2949 /// autoclose region. This uses the ordering of the selections and the autoclose
2950 /// regions to avoid repeated comparisons.
2951 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2952 &'a self,
2953 selections: impl IntoIterator<Item = Selection<D>>,
2954 buffer: &'a MultiBufferSnapshot,
2955 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2956 let mut i = 0;
2957 let mut regions = self.autoclose_regions.as_slice();
2958 selections.into_iter().map(move |selection| {
2959 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2960
2961 let mut enclosing = None;
2962 while let Some(pair_state) = regions.get(i) {
2963 if pair_state.range.end.to_offset(buffer) < range.start {
2964 regions = ®ions[i + 1..];
2965 i = 0;
2966 } else if pair_state.range.start.to_offset(buffer) > range.end {
2967 break;
2968 } else {
2969 if pair_state.selection_id == selection.id {
2970 enclosing = Some(pair_state);
2971 }
2972 i += 1;
2973 }
2974 }
2975
2976 (selection.clone(), enclosing)
2977 })
2978 }
2979
2980 /// Remove any autoclose regions that no longer contain their selection.
2981 fn invalidate_autoclose_regions(
2982 &mut self,
2983 mut selections: &[Selection<Anchor>],
2984 buffer: &MultiBufferSnapshot,
2985 ) {
2986 self.autoclose_regions.retain(|state| {
2987 let mut i = 0;
2988 while let Some(selection) = selections.get(i) {
2989 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2990 selections = &selections[1..];
2991 continue;
2992 }
2993 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2994 break;
2995 }
2996 if selection.id == state.selection_id {
2997 return true;
2998 } else {
2999 i += 1;
3000 }
3001 }
3002 false
3003 });
3004 }
3005
3006 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3007 let offset = position.to_offset(buffer);
3008 let (word_range, kind) = buffer.surrounding_word(offset);
3009 if offset > word_range.start && kind == Some(CharKind::Word) {
3010 Some(
3011 buffer
3012 .text_for_range(word_range.start..offset)
3013 .collect::<String>(),
3014 )
3015 } else {
3016 None
3017 }
3018 }
3019
3020 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3021 self.refresh_inlay_hints(
3022 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3023 cx,
3024 );
3025 }
3026
3027 pub fn inlay_hints_enabled(&self) -> bool {
3028 self.inlay_hint_cache.enabled
3029 }
3030
3031 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3032 if self.project.is_none() || self.mode != EditorMode::Full {
3033 return;
3034 }
3035
3036 let reason_description = reason.description();
3037 let (invalidate_cache, required_languages) = match reason {
3038 InlayHintRefreshReason::Toggle(enabled) => {
3039 self.inlay_hint_cache.enabled = enabled;
3040 if enabled {
3041 (InvalidationStrategy::RefreshRequested, None)
3042 } else {
3043 self.inlay_hint_cache.clear();
3044 self.splice_inlay_hints(
3045 self.visible_inlay_hints(cx)
3046 .iter()
3047 .map(|inlay| inlay.id)
3048 .collect(),
3049 Vec::new(),
3050 cx,
3051 );
3052 return;
3053 }
3054 }
3055 InlayHintRefreshReason::SettingsChange(new_settings) => {
3056 match self.inlay_hint_cache.update_settings(
3057 &self.buffer,
3058 new_settings,
3059 self.visible_inlay_hints(cx),
3060 cx,
3061 ) {
3062 ControlFlow::Break(Some(InlaySplice {
3063 to_remove,
3064 to_insert,
3065 })) => {
3066 self.splice_inlay_hints(to_remove, to_insert, cx);
3067 return;
3068 }
3069 ControlFlow::Break(None) => return,
3070 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3071 }
3072 }
3073 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3074 if let Some(InlaySplice {
3075 to_remove,
3076 to_insert,
3077 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3078 {
3079 self.splice_inlay_hints(to_remove, to_insert, cx);
3080 }
3081 return;
3082 }
3083 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3084 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3085 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3086 }
3087 InlayHintRefreshReason::RefreshRequested => {
3088 (InvalidationStrategy::RefreshRequested, None)
3089 }
3090 };
3091
3092 if let Some(InlaySplice {
3093 to_remove,
3094 to_insert,
3095 }) = self.inlay_hint_cache.spawn_hint_refresh(
3096 reason_description,
3097 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3098 invalidate_cache,
3099 cx,
3100 ) {
3101 self.splice_inlay_hints(to_remove, to_insert, cx);
3102 }
3103 }
3104
3105 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3106 self.display_map
3107 .read(cx)
3108 .current_inlays()
3109 .filter(move |inlay| {
3110 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3111 })
3112 .cloned()
3113 .collect()
3114 }
3115
3116 pub fn excerpts_for_inlay_hints_query(
3117 &self,
3118 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3119 cx: &mut ViewContext<Editor>,
3120 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3121 let Some(project) = self.project.as_ref() else {
3122 return HashMap::default();
3123 };
3124 let project = project.read(cx);
3125 let multi_buffer = self.buffer().read(cx);
3126 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3127 let multi_buffer_visible_start = self
3128 .scroll_manager
3129 .anchor()
3130 .anchor
3131 .to_point(&multi_buffer_snapshot);
3132 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3133 multi_buffer_visible_start
3134 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3135 Bias::Left,
3136 );
3137 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3138 multi_buffer
3139 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3140 .into_iter()
3141 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3142 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3143 let buffer = buffer_handle.read(cx);
3144 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3145 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3146 let worktree_entry = buffer_worktree
3147 .read(cx)
3148 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3149 if worktree_entry.is_ignored {
3150 return None;
3151 }
3152
3153 let language = buffer.language()?;
3154 if let Some(restrict_to_languages) = restrict_to_languages {
3155 if !restrict_to_languages.contains(language) {
3156 return None;
3157 }
3158 }
3159 Some((
3160 excerpt_id,
3161 (
3162 buffer_handle,
3163 buffer.version().clone(),
3164 excerpt_visible_range,
3165 ),
3166 ))
3167 })
3168 .collect()
3169 }
3170
3171 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3172 TextLayoutDetails {
3173 text_system: cx.text_system().clone(),
3174 editor_style: self.style.clone().unwrap(),
3175 rem_size: cx.rem_size(),
3176 }
3177 }
3178
3179 fn splice_inlay_hints(
3180 &self,
3181 to_remove: Vec<InlayId>,
3182 to_insert: Vec<Inlay>,
3183 cx: &mut ViewContext<Self>,
3184 ) {
3185 self.display_map.update(cx, |display_map, cx| {
3186 display_map.splice_inlays(to_remove, to_insert, cx);
3187 });
3188 cx.notify();
3189 }
3190
3191 fn trigger_on_type_formatting(
3192 &self,
3193 input: String,
3194 cx: &mut ViewContext<Self>,
3195 ) -> Option<Task<Result<()>>> {
3196 if input.len() != 1 {
3197 return None;
3198 }
3199
3200 let project = self.project.as_ref()?;
3201 let position = self.selections.newest_anchor().head();
3202 let (buffer, buffer_position) = self
3203 .buffer
3204 .read(cx)
3205 .text_anchor_for_position(position.clone(), cx)?;
3206
3207 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3208 // hence we do LSP request & edit on host side only — add formats to host's history.
3209 let push_to_lsp_host_history = true;
3210 // If this is not the host, append its history with new edits.
3211 let push_to_client_history = project.read(cx).is_remote();
3212
3213 let on_type_formatting = project.update(cx, |project, cx| {
3214 project.on_type_format(
3215 buffer.clone(),
3216 buffer_position,
3217 input,
3218 push_to_lsp_host_history,
3219 cx,
3220 )
3221 });
3222 Some(cx.spawn(|editor, mut cx| async move {
3223 if let Some(transaction) = on_type_formatting.await? {
3224 if push_to_client_history {
3225 buffer
3226 .update(&mut cx, |buffer, _| {
3227 buffer.push_transaction(transaction, Instant::now());
3228 })
3229 .ok();
3230 }
3231 editor.update(&mut cx, |editor, cx| {
3232 editor.refresh_document_highlights(cx);
3233 })?;
3234 }
3235 Ok(())
3236 }))
3237 }
3238
3239 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3240 if self.pending_rename.is_some() {
3241 return;
3242 }
3243
3244 let project = if let Some(project) = self.project.clone() {
3245 project
3246 } else {
3247 return;
3248 };
3249
3250 let position = self.selections.newest_anchor().head();
3251 let (buffer, buffer_position) = if let Some(output) = self
3252 .buffer
3253 .read(cx)
3254 .text_anchor_for_position(position.clone(), cx)
3255 {
3256 output
3257 } else {
3258 return;
3259 };
3260
3261 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3262 let completions = project.update(cx, |project, cx| {
3263 project.completions(&buffer, buffer_position, cx)
3264 });
3265
3266 let id = post_inc(&mut self.next_completion_id);
3267 let task = cx.spawn(|this, mut cx| {
3268 async move {
3269 let completions = completions.await.log_err();
3270 let (menu, pre_resolve_task) = if let Some(completions) = completions {
3271 let mut menu = CompletionsMenu {
3272 id,
3273 initial_position: position,
3274 match_candidates: completions
3275 .iter()
3276 .enumerate()
3277 .map(|(id, completion)| {
3278 StringMatchCandidate::new(
3279 id,
3280 completion.label.text[completion.label.filter_range.clone()]
3281 .into(),
3282 )
3283 })
3284 .collect(),
3285 buffer,
3286 completions: Arc::new(RwLock::new(completions.into())),
3287 matches: Vec::new().into(),
3288 selected_item: 0,
3289 scroll_handle: UniformListScrollHandle::new(),
3290 };
3291 menu.filter(query.as_deref(), cx.background_executor().clone())
3292 .await;
3293
3294 if menu.matches.is_empty() {
3295 (None, None)
3296 } else {
3297 let pre_resolve_task = this
3298 .update(&mut cx, |editor, cx| {
3299 menu.pre_resolve_completion_documentation(editor, cx)
3300 })
3301 .ok()
3302 .flatten();
3303 (Some(menu), pre_resolve_task)
3304 }
3305 } else {
3306 (None, None)
3307 };
3308
3309 this.update(&mut cx, |this, cx| {
3310 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3311
3312 let mut context_menu = this.context_menu.write();
3313 match context_menu.as_ref() {
3314 None => {}
3315
3316 Some(ContextMenu::Completions(prev_menu)) => {
3317 if prev_menu.id > id {
3318 return;
3319 }
3320 }
3321
3322 _ => return,
3323 }
3324
3325 if this.focus_handle.is_focused(cx) && menu.is_some() {
3326 let menu = menu.unwrap();
3327 *context_menu = Some(ContextMenu::Completions(menu));
3328 drop(context_menu);
3329 this.discard_copilot_suggestion(cx);
3330 cx.notify();
3331 } else if this.completion_tasks.len() <= 1 {
3332 // If there are no more completion tasks and the last menu was
3333 // empty, we should hide it. If it was already hidden, we should
3334 // also show the copilot suggestion when available.
3335 drop(context_menu);
3336 if this.hide_context_menu(cx).is_none() {
3337 this.update_visible_copilot_suggestion(cx);
3338 }
3339 }
3340 })?;
3341
3342 if let Some(pre_resolve_task) = pre_resolve_task {
3343 pre_resolve_task.await;
3344 }
3345
3346 Ok::<_, anyhow::Error>(())
3347 }
3348 .log_err()
3349 });
3350
3351 self.completion_tasks.push((id, task));
3352 }
3353
3354 pub fn confirm_completion(
3355 &mut self,
3356 action: &ConfirmCompletion,
3357 cx: &mut ViewContext<Self>,
3358 ) -> Option<Task<Result<()>>> {
3359 use language::ToOffset as _;
3360
3361 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3362 menu
3363 } else {
3364 return None;
3365 };
3366
3367 let mat = completions_menu
3368 .matches
3369 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3370 let buffer_handle = completions_menu.buffer;
3371 let completions = completions_menu.completions.read();
3372 let completion = completions.get(mat.candidate_id)?;
3373
3374 let snippet;
3375 let text;
3376 if completion.is_snippet() {
3377 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3378 text = snippet.as_ref().unwrap().text.clone();
3379 } else {
3380 snippet = None;
3381 text = completion.new_text.clone();
3382 };
3383 let selections = self.selections.all::<usize>(cx);
3384 let buffer = buffer_handle.read(cx);
3385 let old_range = completion.old_range.to_offset(buffer);
3386 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3387
3388 let newest_selection = self.selections.newest_anchor();
3389 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3390 return None;
3391 }
3392
3393 let lookbehind = newest_selection
3394 .start
3395 .text_anchor
3396 .to_offset(buffer)
3397 .saturating_sub(old_range.start);
3398 let lookahead = old_range
3399 .end
3400 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3401 let mut common_prefix_len = old_text
3402 .bytes()
3403 .zip(text.bytes())
3404 .take_while(|(a, b)| a == b)
3405 .count();
3406
3407 let snapshot = self.buffer.read(cx).snapshot(cx);
3408 let mut range_to_replace: Option<Range<isize>> = None;
3409 let mut ranges = Vec::new();
3410 for selection in &selections {
3411 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3412 let start = selection.start.saturating_sub(lookbehind);
3413 let end = selection.end + lookahead;
3414 if selection.id == newest_selection.id {
3415 range_to_replace = Some(
3416 ((start + common_prefix_len) as isize - selection.start as isize)
3417 ..(end as isize - selection.start as isize),
3418 );
3419 }
3420 ranges.push(start + common_prefix_len..end);
3421 } else {
3422 common_prefix_len = 0;
3423 ranges.clear();
3424 ranges.extend(selections.iter().map(|s| {
3425 if s.id == newest_selection.id {
3426 range_to_replace = Some(
3427 old_range.start.to_offset_utf16(&snapshot).0 as isize
3428 - selection.start as isize
3429 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3430 - selection.start as isize,
3431 );
3432 old_range.clone()
3433 } else {
3434 s.start..s.end
3435 }
3436 }));
3437 break;
3438 }
3439 }
3440 let text = &text[common_prefix_len..];
3441
3442 cx.emit(EditorEvent::InputHandled {
3443 utf16_range_to_replace: range_to_replace,
3444 text: text.into(),
3445 });
3446
3447 self.transact(cx, |this, cx| {
3448 if let Some(mut snippet) = snippet {
3449 snippet.text = text.to_string();
3450 for tabstop in snippet.tabstops.iter_mut().flatten() {
3451 tabstop.start -= common_prefix_len as isize;
3452 tabstop.end -= common_prefix_len as isize;
3453 }
3454
3455 this.insert_snippet(&ranges, snippet, cx).log_err();
3456 } else {
3457 this.buffer.update(cx, |buffer, cx| {
3458 buffer.edit(
3459 ranges.iter().map(|range| (range.clone(), text)),
3460 this.autoindent_mode.clone(),
3461 cx,
3462 );
3463 });
3464 }
3465
3466 this.refresh_copilot_suggestions(true, cx);
3467 });
3468
3469 let project = self.project.clone()?;
3470 let apply_edits = project.update(cx, |project, cx| {
3471 project.apply_additional_edits_for_completion(
3472 buffer_handle,
3473 completion.clone(),
3474 true,
3475 cx,
3476 )
3477 });
3478 Some(cx.foreground_executor().spawn(async move {
3479 apply_edits.await?;
3480 Ok(())
3481 }))
3482 }
3483
3484 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3485 let mut context_menu = self.context_menu.write();
3486 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3487 *context_menu = None;
3488 cx.notify();
3489 return;
3490 }
3491 drop(context_menu);
3492
3493 let deployed_from_indicator = action.deployed_from_indicator;
3494 let mut task = self.code_actions_task.take();
3495 cx.spawn(|this, mut cx| async move {
3496 while let Some(prev_task) = task {
3497 prev_task.await;
3498 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3499 }
3500
3501 this.update(&mut cx, |this, cx| {
3502 if this.focus_handle.is_focused(cx) {
3503 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3504 this.completion_tasks.clear();
3505 this.discard_copilot_suggestion(cx);
3506 *this.context_menu.write() =
3507 Some(ContextMenu::CodeActions(CodeActionsMenu {
3508 buffer,
3509 actions,
3510 selected_item: Default::default(),
3511 scroll_handle: UniformListScrollHandle::default(),
3512 deployed_from_indicator,
3513 }));
3514 cx.notify();
3515 }
3516 }
3517 })?;
3518
3519 Ok::<_, anyhow::Error>(())
3520 })
3521 .detach_and_log_err(cx);
3522 }
3523
3524 pub fn confirm_code_action(
3525 &mut self,
3526 action: &ConfirmCodeAction,
3527 cx: &mut ViewContext<Self>,
3528 ) -> Option<Task<Result<()>>> {
3529 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3530 menu
3531 } else {
3532 return None;
3533 };
3534 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3535 let action = actions_menu.actions.get(action_ix)?.clone();
3536 let title = action.lsp_action.title.clone();
3537 let buffer = actions_menu.buffer;
3538 let workspace = self.workspace()?;
3539
3540 let apply_code_actions = workspace
3541 .read(cx)
3542 .project()
3543 .clone()
3544 .update(cx, |project, cx| {
3545 project.apply_code_action(buffer, action, true, cx)
3546 });
3547 let workspace = workspace.downgrade();
3548 Some(cx.spawn(|editor, cx| async move {
3549 let project_transaction = apply_code_actions.await?;
3550 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3551 }))
3552 }
3553
3554 async fn open_project_transaction(
3555 this: &WeakView<Editor>,
3556 workspace: WeakView<Workspace>,
3557 transaction: ProjectTransaction,
3558 title: String,
3559 mut cx: AsyncWindowContext,
3560 ) -> Result<()> {
3561 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3562
3563 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3564 cx.update(|_, cx| {
3565 entries.sort_unstable_by_key(|(buffer, _)| {
3566 buffer.read(cx).file().map(|f| f.path().clone())
3567 });
3568 })?;
3569
3570 // If the project transaction's edits are all contained within this editor, then
3571 // avoid opening a new editor to display them.
3572
3573 if let Some((buffer, transaction)) = entries.first() {
3574 if entries.len() == 1 {
3575 let excerpt = this.update(&mut cx, |editor, cx| {
3576 editor
3577 .buffer()
3578 .read(cx)
3579 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3580 })?;
3581 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3582 if excerpted_buffer == *buffer {
3583 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3584 let excerpt_range = excerpt_range.to_offset(buffer);
3585 buffer
3586 .edited_ranges_for_transaction::<usize>(transaction)
3587 .all(|range| {
3588 excerpt_range.start <= range.start
3589 && excerpt_range.end >= range.end
3590 })
3591 })?;
3592
3593 if all_edits_within_excerpt {
3594 return Ok(());
3595 }
3596 }
3597 }
3598 }
3599 } else {
3600 return Ok(());
3601 }
3602
3603 let mut ranges_to_highlight = Vec::new();
3604 let excerpt_buffer = cx.new_model(|cx| {
3605 let mut multibuffer =
3606 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3607 for (buffer_handle, transaction) in &entries {
3608 let buffer = buffer_handle.read(cx);
3609 ranges_to_highlight.extend(
3610 multibuffer.push_excerpts_with_context_lines(
3611 buffer_handle.clone(),
3612 buffer
3613 .edited_ranges_for_transaction::<usize>(transaction)
3614 .collect(),
3615 1,
3616 cx,
3617 ),
3618 );
3619 }
3620 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3621 multibuffer
3622 })?;
3623
3624 workspace.update(&mut cx, |workspace, cx| {
3625 let project = workspace.project().clone();
3626 let editor =
3627 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3628 workspace.add_item(Box::new(editor.clone()), cx);
3629 editor.update(cx, |editor, cx| {
3630 editor.highlight_background::<Self>(
3631 ranges_to_highlight,
3632 |theme| theme.editor_highlighted_line_background,
3633 cx,
3634 );
3635 });
3636 })?;
3637
3638 Ok(())
3639 }
3640
3641 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3642 let project = self.project.clone()?;
3643 let buffer = self.buffer.read(cx);
3644 let newest_selection = self.selections.newest_anchor().clone();
3645 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3646 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3647 if start_buffer != end_buffer {
3648 return None;
3649 }
3650
3651 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3652 cx.background_executor()
3653 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3654 .await;
3655
3656 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3657 project.code_actions(&start_buffer, start..end, cx)
3658 }) {
3659 code_actions.await.log_err()
3660 } else {
3661 None
3662 };
3663
3664 this.update(&mut cx, |this, cx| {
3665 this.available_code_actions = actions.and_then(|actions| {
3666 if actions.is_empty() {
3667 None
3668 } else {
3669 Some((start_buffer, actions.into()))
3670 }
3671 });
3672 cx.notify();
3673 })
3674 .log_err();
3675 }));
3676 None
3677 }
3678
3679 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3680 if self.pending_rename.is_some() {
3681 return None;
3682 }
3683
3684 let project = self.project.clone()?;
3685 let buffer = self.buffer.read(cx);
3686 let newest_selection = self.selections.newest_anchor().clone();
3687 let cursor_position = newest_selection.head();
3688 let (cursor_buffer, cursor_buffer_position) =
3689 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3690 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3691 if cursor_buffer != tail_buffer {
3692 return None;
3693 }
3694
3695 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3696 cx.background_executor()
3697 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3698 .await;
3699
3700 let highlights = if let Some(highlights) = project
3701 .update(&mut cx, |project, cx| {
3702 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3703 })
3704 .log_err()
3705 {
3706 highlights.await.log_err()
3707 } else {
3708 None
3709 };
3710
3711 if let Some(highlights) = highlights {
3712 this.update(&mut cx, |this, cx| {
3713 if this.pending_rename.is_some() {
3714 return;
3715 }
3716
3717 let buffer_id = cursor_position.buffer_id;
3718 let buffer = this.buffer.read(cx);
3719 if !buffer
3720 .text_anchor_for_position(cursor_position, cx)
3721 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3722 {
3723 return;
3724 }
3725
3726 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3727 let mut write_ranges = Vec::new();
3728 let mut read_ranges = Vec::new();
3729 for highlight in highlights {
3730 for (excerpt_id, excerpt_range) in
3731 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3732 {
3733 let start = highlight
3734 .range
3735 .start
3736 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3737 let end = highlight
3738 .range
3739 .end
3740 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3741 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3742 continue;
3743 }
3744
3745 let range = Anchor {
3746 buffer_id,
3747 excerpt_id: excerpt_id.clone(),
3748 text_anchor: start,
3749 }..Anchor {
3750 buffer_id,
3751 excerpt_id,
3752 text_anchor: end,
3753 };
3754 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3755 write_ranges.push(range);
3756 } else {
3757 read_ranges.push(range);
3758 }
3759 }
3760 }
3761
3762 this.highlight_background::<DocumentHighlightRead>(
3763 read_ranges,
3764 |theme| theme.editor_document_highlight_read_background,
3765 cx,
3766 );
3767 this.highlight_background::<DocumentHighlightWrite>(
3768 write_ranges,
3769 |theme| theme.editor_document_highlight_write_background,
3770 cx,
3771 );
3772 cx.notify();
3773 })
3774 .log_err();
3775 }
3776 }));
3777 None
3778 }
3779
3780 fn refresh_copilot_suggestions(
3781 &mut self,
3782 debounce: bool,
3783 cx: &mut ViewContext<Self>,
3784 ) -> Option<()> {
3785 let copilot = Copilot::global(cx)?;
3786 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3787 self.clear_copilot_suggestions(cx);
3788 return None;
3789 }
3790 self.update_visible_copilot_suggestion(cx);
3791
3792 let snapshot = self.buffer.read(cx).snapshot(cx);
3793 let cursor = self.selections.newest_anchor().head();
3794 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3795 self.clear_copilot_suggestions(cx);
3796 return None;
3797 }
3798
3799 let (buffer, buffer_position) =
3800 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3801 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3802 if debounce {
3803 cx.background_executor()
3804 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3805 .await;
3806 }
3807
3808 let completions = copilot
3809 .update(&mut cx, |copilot, cx| {
3810 copilot.completions(&buffer, buffer_position, cx)
3811 })
3812 .log_err()
3813 .unwrap_or(Task::ready(Ok(Vec::new())))
3814 .await
3815 .log_err()
3816 .into_iter()
3817 .flatten()
3818 .collect_vec();
3819
3820 this.update(&mut cx, |this, cx| {
3821 if !completions.is_empty() {
3822 this.copilot_state.cycled = false;
3823 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3824 this.copilot_state.completions.clear();
3825 this.copilot_state.active_completion_index = 0;
3826 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3827 for completion in completions {
3828 this.copilot_state.push_completion(completion);
3829 }
3830 this.update_visible_copilot_suggestion(cx);
3831 }
3832 })
3833 .log_err()?;
3834 Some(())
3835 });
3836
3837 Some(())
3838 }
3839
3840 fn cycle_copilot_suggestions(
3841 &mut self,
3842 direction: Direction,
3843 cx: &mut ViewContext<Self>,
3844 ) -> Option<()> {
3845 let copilot = Copilot::global(cx)?;
3846 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3847 return None;
3848 }
3849
3850 if self.copilot_state.cycled {
3851 self.copilot_state.cycle_completions(direction);
3852 self.update_visible_copilot_suggestion(cx);
3853 } else {
3854 let cursor = self.selections.newest_anchor().head();
3855 let (buffer, buffer_position) =
3856 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3857 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3858 let completions = copilot
3859 .update(&mut cx, |copilot, cx| {
3860 copilot.completions_cycling(&buffer, buffer_position, cx)
3861 })
3862 .log_err()?
3863 .await;
3864
3865 this.update(&mut cx, |this, cx| {
3866 this.copilot_state.cycled = true;
3867 for completion in completions.log_err().into_iter().flatten() {
3868 this.copilot_state.push_completion(completion);
3869 }
3870 this.copilot_state.cycle_completions(direction);
3871 this.update_visible_copilot_suggestion(cx);
3872 })
3873 .log_err()?;
3874
3875 Some(())
3876 });
3877 }
3878
3879 Some(())
3880 }
3881
3882 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3883 if !self.has_active_copilot_suggestion(cx) {
3884 self.refresh_copilot_suggestions(false, cx);
3885 return;
3886 }
3887
3888 self.update_visible_copilot_suggestion(cx);
3889 }
3890
3891 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3892 if self.has_active_copilot_suggestion(cx) {
3893 self.cycle_copilot_suggestions(Direction::Next, cx);
3894 } else {
3895 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3896 if is_copilot_disabled {
3897 cx.propagate();
3898 }
3899 }
3900 }
3901
3902 fn previous_copilot_suggestion(
3903 &mut self,
3904 _: &copilot::PreviousSuggestion,
3905 cx: &mut ViewContext<Self>,
3906 ) {
3907 if self.has_active_copilot_suggestion(cx) {
3908 self.cycle_copilot_suggestions(Direction::Prev, cx);
3909 } else {
3910 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3911 if is_copilot_disabled {
3912 cx.propagate();
3913 }
3914 }
3915 }
3916
3917 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3918 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3919 if let Some((copilot, completion)) =
3920 Copilot::global(cx).zip(self.copilot_state.active_completion())
3921 {
3922 copilot
3923 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3924 .detach_and_log_err(cx);
3925
3926 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3927 }
3928 cx.emit(EditorEvent::InputHandled {
3929 utf16_range_to_replace: None,
3930 text: suggestion.text.to_string().into(),
3931 });
3932 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3933 cx.notify();
3934 true
3935 } else {
3936 false
3937 }
3938 }
3939
3940 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3941 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3942 if let Some(copilot) = Copilot::global(cx) {
3943 copilot
3944 .update(cx, |copilot, cx| {
3945 copilot.discard_completions(&self.copilot_state.completions, cx)
3946 })
3947 .detach_and_log_err(cx);
3948
3949 self.report_copilot_event(None, false, cx)
3950 }
3951
3952 self.display_map.update(cx, |map, cx| {
3953 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3954 });
3955 cx.notify();
3956 true
3957 } else {
3958 false
3959 }
3960 }
3961
3962 fn is_copilot_enabled_at(
3963 &self,
3964 location: Anchor,
3965 snapshot: &MultiBufferSnapshot,
3966 cx: &mut ViewContext<Self>,
3967 ) -> bool {
3968 let file = snapshot.file_at(location);
3969 let language = snapshot.language_at(location);
3970 let settings = all_language_settings(file, cx);
3971 self.show_copilot_suggestions
3972 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3973 }
3974
3975 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3976 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3977 let buffer = self.buffer.read(cx).read(cx);
3978 suggestion.position.is_valid(&buffer)
3979 } else {
3980 false
3981 }
3982 }
3983
3984 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3985 let suggestion = self.copilot_state.suggestion.take()?;
3986 self.display_map.update(cx, |map, cx| {
3987 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3988 });
3989 let buffer = self.buffer.read(cx).read(cx);
3990
3991 if suggestion.position.is_valid(&buffer) {
3992 Some(suggestion)
3993 } else {
3994 None
3995 }
3996 }
3997
3998 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3999 let snapshot = self.buffer.read(cx).snapshot(cx);
4000 let selection = self.selections.newest_anchor();
4001 let cursor = selection.head();
4002
4003 if self.context_menu.read().is_some()
4004 || !self.completion_tasks.is_empty()
4005 || selection.start != selection.end
4006 {
4007 self.discard_copilot_suggestion(cx);
4008 } else if let Some(text) = self
4009 .copilot_state
4010 .text_for_active_completion(cursor, &snapshot)
4011 {
4012 let text = Rope::from(text);
4013 let mut to_remove = Vec::new();
4014 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4015 to_remove.push(suggestion.id);
4016 }
4017
4018 let suggestion_inlay =
4019 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4020 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4021 self.display_map.update(cx, move |map, cx| {
4022 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4023 });
4024 cx.notify();
4025 } else {
4026 self.discard_copilot_suggestion(cx);
4027 }
4028 }
4029
4030 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4031 self.copilot_state = Default::default();
4032 self.discard_copilot_suggestion(cx);
4033 }
4034
4035 pub fn render_code_actions_indicator(
4036 &self,
4037 _style: &EditorStyle,
4038 is_active: bool,
4039 cx: &mut ViewContext<Self>,
4040 ) -> Option<IconButton> {
4041 if self.available_code_actions.is_some() {
4042 Some(
4043 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4044 .icon_size(IconSize::Small)
4045 .icon_color(Color::Muted)
4046 .selected(is_active)
4047 .on_click(cx.listener(|editor, _e, cx| {
4048 editor.toggle_code_actions(
4049 &ToggleCodeActions {
4050 deployed_from_indicator: true,
4051 },
4052 cx,
4053 );
4054 })),
4055 )
4056 } else {
4057 None
4058 }
4059 }
4060
4061 pub fn render_fold_indicators(
4062 &self,
4063 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4064 _style: &EditorStyle,
4065 gutter_hovered: bool,
4066 _line_height: Pixels,
4067 _gutter_margin: Pixels,
4068 cx: &mut ViewContext<Self>,
4069 ) -> Vec<Option<IconButton>> {
4070 fold_data
4071 .iter()
4072 .enumerate()
4073 .map(|(ix, fold_data)| {
4074 fold_data
4075 .map(|(fold_status, buffer_row, active)| {
4076 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4077 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4078 .on_click(cx.listener(move |editor, _e, cx| match fold_status {
4079 FoldStatus::Folded => {
4080 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4081 }
4082 FoldStatus::Foldable => {
4083 editor.fold_at(&FoldAt { buffer_row }, cx);
4084 }
4085 }))
4086 .icon_color(ui::Color::Muted)
4087 .icon_size(ui::IconSize::Small)
4088 .selected(fold_status == FoldStatus::Folded)
4089 .selected_icon(ui::IconName::ChevronRight)
4090 .size(ui::ButtonSize::None)
4091 })
4092 })
4093 .flatten()
4094 })
4095 .collect()
4096 }
4097
4098 pub fn context_menu_visible(&self) -> bool {
4099 self.context_menu
4100 .read()
4101 .as_ref()
4102 .map_or(false, |menu| menu.visible())
4103 }
4104
4105 pub fn render_context_menu(
4106 &self,
4107 cursor_position: DisplayPoint,
4108 style: &EditorStyle,
4109 max_height: Pixels,
4110 cx: &mut ViewContext<Editor>,
4111 ) -> Option<(DisplayPoint, AnyElement)> {
4112 self.context_menu.read().as_ref().map(|menu| {
4113 menu.render(
4114 cursor_position,
4115 style,
4116 max_height,
4117 self.workspace.as_ref().map(|(w, _)| w.clone()),
4118 cx,
4119 )
4120 })
4121 }
4122
4123 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4124 cx.notify();
4125 self.completion_tasks.clear();
4126 let context_menu = self.context_menu.write().take();
4127 if context_menu.is_some() {
4128 self.update_visible_copilot_suggestion(cx);
4129 }
4130 context_menu
4131 }
4132
4133 pub fn insert_snippet(
4134 &mut self,
4135 insertion_ranges: &[Range<usize>],
4136 snippet: Snippet,
4137 cx: &mut ViewContext<Self>,
4138 ) -> Result<()> {
4139 let tabstops = self.buffer.update(cx, |buffer, cx| {
4140 let snippet_text: Arc<str> = snippet.text.clone().into();
4141 buffer.edit(
4142 insertion_ranges
4143 .iter()
4144 .cloned()
4145 .map(|range| (range, snippet_text.clone())),
4146 Some(AutoindentMode::EachLine),
4147 cx,
4148 );
4149
4150 let snapshot = &*buffer.read(cx);
4151 let snippet = &snippet;
4152 snippet
4153 .tabstops
4154 .iter()
4155 .map(|tabstop| {
4156 let mut tabstop_ranges = tabstop
4157 .iter()
4158 .flat_map(|tabstop_range| {
4159 let mut delta = 0_isize;
4160 insertion_ranges.iter().map(move |insertion_range| {
4161 let insertion_start = insertion_range.start as isize + delta;
4162 delta +=
4163 snippet.text.len() as isize - insertion_range.len() as isize;
4164
4165 let start = snapshot.anchor_before(
4166 (insertion_start + tabstop_range.start) as usize,
4167 );
4168 let end = snapshot
4169 .anchor_after((insertion_start + tabstop_range.end) as usize);
4170 start..end
4171 })
4172 })
4173 .collect::<Vec<_>>();
4174 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4175 tabstop_ranges
4176 })
4177 .collect::<Vec<_>>()
4178 });
4179
4180 if let Some(tabstop) = tabstops.first() {
4181 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4182 s.select_ranges(tabstop.iter().cloned());
4183 });
4184 self.snippet_stack.push(SnippetState {
4185 active_index: 0,
4186 ranges: tabstops,
4187 });
4188 }
4189
4190 Ok(())
4191 }
4192
4193 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4194 self.move_to_snippet_tabstop(Bias::Right, cx)
4195 }
4196
4197 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4198 self.move_to_snippet_tabstop(Bias::Left, cx)
4199 }
4200
4201 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4202 if let Some(mut snippet) = self.snippet_stack.pop() {
4203 match bias {
4204 Bias::Left => {
4205 if snippet.active_index > 0 {
4206 snippet.active_index -= 1;
4207 } else {
4208 self.snippet_stack.push(snippet);
4209 return false;
4210 }
4211 }
4212 Bias::Right => {
4213 if snippet.active_index + 1 < snippet.ranges.len() {
4214 snippet.active_index += 1;
4215 } else {
4216 self.snippet_stack.push(snippet);
4217 return false;
4218 }
4219 }
4220 }
4221 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4222 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4223 s.select_anchor_ranges(current_ranges.iter().cloned())
4224 });
4225 // If snippet state is not at the last tabstop, push it back on the stack
4226 if snippet.active_index + 1 < snippet.ranges.len() {
4227 self.snippet_stack.push(snippet);
4228 }
4229 return true;
4230 }
4231 }
4232
4233 false
4234 }
4235
4236 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4237 self.transact(cx, |this, cx| {
4238 this.select_all(&SelectAll, cx);
4239 this.insert("", cx);
4240 });
4241 }
4242
4243 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4244 self.transact(cx, |this, cx| {
4245 this.select_autoclose_pair(cx);
4246 let mut selections = this.selections.all::<Point>(cx);
4247 if !this.selections.line_mode {
4248 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4249 for selection in &mut selections {
4250 if selection.is_empty() {
4251 let old_head = selection.head();
4252 let mut new_head =
4253 movement::left(&display_map, old_head.to_display_point(&display_map))
4254 .to_point(&display_map);
4255 if let Some((buffer, line_buffer_range)) = display_map
4256 .buffer_snapshot
4257 .buffer_line_for_row(old_head.row)
4258 {
4259 let indent_size =
4260 buffer.indent_size_for_line(line_buffer_range.start.row);
4261 let indent_len = match indent_size.kind {
4262 IndentKind::Space => {
4263 buffer.settings_at(line_buffer_range.start, cx).tab_size
4264 }
4265 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4266 };
4267 if old_head.column <= indent_size.len && old_head.column > 0 {
4268 let indent_len = indent_len.get();
4269 new_head = cmp::min(
4270 new_head,
4271 Point::new(
4272 old_head.row,
4273 ((old_head.column - 1) / indent_len) * indent_len,
4274 ),
4275 );
4276 }
4277 }
4278
4279 selection.set_head(new_head, SelectionGoal::None);
4280 }
4281 }
4282 }
4283
4284 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4285 this.insert("", cx);
4286 this.refresh_copilot_suggestions(true, cx);
4287 });
4288 }
4289
4290 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4291 self.transact(cx, |this, cx| {
4292 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4293 let line_mode = s.line_mode;
4294 s.move_with(|map, selection| {
4295 if selection.is_empty() && !line_mode {
4296 let cursor = movement::right(map, selection.head());
4297 selection.end = cursor;
4298 selection.reversed = true;
4299 selection.goal = SelectionGoal::None;
4300 }
4301 })
4302 });
4303 this.insert("", cx);
4304 this.refresh_copilot_suggestions(true, cx);
4305 });
4306 }
4307
4308 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4309 if self.move_to_prev_snippet_tabstop(cx) {
4310 return;
4311 }
4312
4313 self.outdent(&Outdent, cx);
4314 }
4315
4316 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4317 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4318 return;
4319 }
4320
4321 let mut selections = self.selections.all_adjusted(cx);
4322 let buffer = self.buffer.read(cx);
4323 let snapshot = buffer.snapshot(cx);
4324 let rows_iter = selections.iter().map(|s| s.head().row);
4325 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4326
4327 let mut edits = Vec::new();
4328 let mut prev_edited_row = 0;
4329 let mut row_delta = 0;
4330 for selection in &mut selections {
4331 if selection.start.row != prev_edited_row {
4332 row_delta = 0;
4333 }
4334 prev_edited_row = selection.end.row;
4335
4336 // If the selection is non-empty, then increase the indentation of the selected lines.
4337 if !selection.is_empty() {
4338 row_delta =
4339 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4340 continue;
4341 }
4342
4343 // If the selection is empty and the cursor is in the leading whitespace before the
4344 // suggested indentation, then auto-indent the line.
4345 let cursor = selection.head();
4346 let current_indent = snapshot.indent_size_for_line(cursor.row);
4347 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4348 if cursor.column < suggested_indent.len
4349 && cursor.column <= current_indent.len
4350 && current_indent.len <= suggested_indent.len
4351 {
4352 selection.start = Point::new(cursor.row, suggested_indent.len);
4353 selection.end = selection.start;
4354 if row_delta == 0 {
4355 edits.extend(Buffer::edit_for_indent_size_adjustment(
4356 cursor.row,
4357 current_indent,
4358 suggested_indent,
4359 ));
4360 row_delta = suggested_indent.len - current_indent.len;
4361 }
4362 continue;
4363 }
4364 }
4365
4366 // Accept copilot suggestion if there is only one selection and the cursor is not
4367 // in the leading whitespace.
4368 if self.selections.count() == 1
4369 && cursor.column >= current_indent.len
4370 && self.has_active_copilot_suggestion(cx)
4371 {
4372 self.accept_copilot_suggestion(cx);
4373 return;
4374 }
4375
4376 // Otherwise, insert a hard or soft tab.
4377 let settings = buffer.settings_at(cursor, cx);
4378 let tab_size = if settings.hard_tabs {
4379 IndentSize::tab()
4380 } else {
4381 let tab_size = settings.tab_size.get();
4382 let char_column = snapshot
4383 .text_for_range(Point::new(cursor.row, 0)..cursor)
4384 .flat_map(str::chars)
4385 .count()
4386 + row_delta as usize;
4387 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4388 IndentSize::spaces(chars_to_next_tab_stop)
4389 };
4390 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4391 selection.end = selection.start;
4392 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4393 row_delta += tab_size.len;
4394 }
4395
4396 self.transact(cx, |this, cx| {
4397 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4398 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4399 this.refresh_copilot_suggestions(true, cx);
4400 });
4401 }
4402
4403 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4404 let mut selections = self.selections.all::<Point>(cx);
4405 let mut prev_edited_row = 0;
4406 let mut row_delta = 0;
4407 let mut edits = Vec::new();
4408 let buffer = self.buffer.read(cx);
4409 let snapshot = buffer.snapshot(cx);
4410 for selection in &mut selections {
4411 if selection.start.row != prev_edited_row {
4412 row_delta = 0;
4413 }
4414 prev_edited_row = selection.end.row;
4415
4416 row_delta =
4417 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4418 }
4419
4420 self.transact(cx, |this, cx| {
4421 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4422 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4423 });
4424 }
4425
4426 fn indent_selection(
4427 buffer: &MultiBuffer,
4428 snapshot: &MultiBufferSnapshot,
4429 selection: &mut Selection<Point>,
4430 edits: &mut Vec<(Range<Point>, String)>,
4431 delta_for_start_row: u32,
4432 cx: &AppContext,
4433 ) -> u32 {
4434 let settings = buffer.settings_at(selection.start, cx);
4435 let tab_size = settings.tab_size.get();
4436 let indent_kind = if settings.hard_tabs {
4437 IndentKind::Tab
4438 } else {
4439 IndentKind::Space
4440 };
4441 let mut start_row = selection.start.row;
4442 let mut end_row = selection.end.row + 1;
4443
4444 // If a selection ends at the beginning of a line, don't indent
4445 // that last line.
4446 if selection.end.column == 0 {
4447 end_row -= 1;
4448 }
4449
4450 // Avoid re-indenting a row that has already been indented by a
4451 // previous selection, but still update this selection's column
4452 // to reflect that indentation.
4453 if delta_for_start_row > 0 {
4454 start_row += 1;
4455 selection.start.column += delta_for_start_row;
4456 if selection.end.row == selection.start.row {
4457 selection.end.column += delta_for_start_row;
4458 }
4459 }
4460
4461 let mut delta_for_end_row = 0;
4462 for row in start_row..end_row {
4463 let current_indent = snapshot.indent_size_for_line(row);
4464 let indent_delta = match (current_indent.kind, indent_kind) {
4465 (IndentKind::Space, IndentKind::Space) => {
4466 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4467 IndentSize::spaces(columns_to_next_tab_stop)
4468 }
4469 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4470 (_, IndentKind::Tab) => IndentSize::tab(),
4471 };
4472
4473 let row_start = Point::new(row, 0);
4474 edits.push((
4475 row_start..row_start,
4476 indent_delta.chars().collect::<String>(),
4477 ));
4478
4479 // Update this selection's endpoints to reflect the indentation.
4480 if row == selection.start.row {
4481 selection.start.column += indent_delta.len;
4482 }
4483 if row == selection.end.row {
4484 selection.end.column += indent_delta.len;
4485 delta_for_end_row = indent_delta.len;
4486 }
4487 }
4488
4489 if selection.start.row == selection.end.row {
4490 delta_for_start_row + delta_for_end_row
4491 } else {
4492 delta_for_end_row
4493 }
4494 }
4495
4496 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4497 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4498 let selections = self.selections.all::<Point>(cx);
4499 let mut deletion_ranges = Vec::new();
4500 let mut last_outdent = None;
4501 {
4502 let buffer = self.buffer.read(cx);
4503 let snapshot = buffer.snapshot(cx);
4504 for selection in &selections {
4505 let settings = buffer.settings_at(selection.start, cx);
4506 let tab_size = settings.tab_size.get();
4507 let mut rows = selection.spanned_rows(false, &display_map);
4508
4509 // Avoid re-outdenting a row that has already been outdented by a
4510 // previous selection.
4511 if let Some(last_row) = last_outdent {
4512 if last_row == rows.start {
4513 rows.start += 1;
4514 }
4515 }
4516
4517 for row in rows {
4518 let indent_size = snapshot.indent_size_for_line(row);
4519 if indent_size.len > 0 {
4520 let deletion_len = match indent_size.kind {
4521 IndentKind::Space => {
4522 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4523 if columns_to_prev_tab_stop == 0 {
4524 tab_size
4525 } else {
4526 columns_to_prev_tab_stop
4527 }
4528 }
4529 IndentKind::Tab => 1,
4530 };
4531 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4532 last_outdent = Some(row);
4533 }
4534 }
4535 }
4536 }
4537
4538 self.transact(cx, |this, cx| {
4539 this.buffer.update(cx, |buffer, cx| {
4540 let empty_str: Arc<str> = "".into();
4541 buffer.edit(
4542 deletion_ranges
4543 .into_iter()
4544 .map(|range| (range, empty_str.clone())),
4545 None,
4546 cx,
4547 );
4548 });
4549 let selections = this.selections.all::<usize>(cx);
4550 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4551 });
4552 }
4553
4554 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4555 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4556 let selections = self.selections.all::<Point>(cx);
4557
4558 let mut new_cursors = Vec::new();
4559 let mut edit_ranges = Vec::new();
4560 let mut selections = selections.iter().peekable();
4561 while let Some(selection) = selections.next() {
4562 let mut rows = selection.spanned_rows(false, &display_map);
4563 let goal_display_column = selection.head().to_display_point(&display_map).column();
4564
4565 // Accumulate contiguous regions of rows that we want to delete.
4566 while let Some(next_selection) = selections.peek() {
4567 let next_rows = next_selection.spanned_rows(false, &display_map);
4568 if next_rows.start <= rows.end {
4569 rows.end = next_rows.end;
4570 selections.next().unwrap();
4571 } else {
4572 break;
4573 }
4574 }
4575
4576 let buffer = &display_map.buffer_snapshot;
4577 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4578 let edit_end;
4579 let cursor_buffer_row;
4580 if buffer.max_point().row >= rows.end {
4581 // If there's a line after the range, delete the \n from the end of the row range
4582 // and position the cursor on the next line.
4583 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4584 cursor_buffer_row = rows.end;
4585 } else {
4586 // If there isn't a line after the range, delete the \n from the line before the
4587 // start of the row range and position the cursor there.
4588 edit_start = edit_start.saturating_sub(1);
4589 edit_end = buffer.len();
4590 cursor_buffer_row = rows.start.saturating_sub(1);
4591 }
4592
4593 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4594 *cursor.column_mut() =
4595 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4596
4597 new_cursors.push((
4598 selection.id,
4599 buffer.anchor_after(cursor.to_point(&display_map)),
4600 ));
4601 edit_ranges.push(edit_start..edit_end);
4602 }
4603
4604 self.transact(cx, |this, cx| {
4605 let buffer = this.buffer.update(cx, |buffer, cx| {
4606 let empty_str: Arc<str> = "".into();
4607 buffer.edit(
4608 edit_ranges
4609 .into_iter()
4610 .map(|range| (range, empty_str.clone())),
4611 None,
4612 cx,
4613 );
4614 buffer.snapshot(cx)
4615 });
4616 let new_selections = new_cursors
4617 .into_iter()
4618 .map(|(id, cursor)| {
4619 let cursor = cursor.to_point(&buffer);
4620 Selection {
4621 id,
4622 start: cursor,
4623 end: cursor,
4624 reversed: false,
4625 goal: SelectionGoal::None,
4626 }
4627 })
4628 .collect();
4629
4630 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4631 s.select(new_selections);
4632 });
4633 });
4634 }
4635
4636 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4637 let mut row_ranges = Vec::<Range<u32>>::new();
4638 for selection in self.selections.all::<Point>(cx) {
4639 let start = selection.start.row;
4640 let end = if selection.start.row == selection.end.row {
4641 selection.start.row + 1
4642 } else {
4643 selection.end.row
4644 };
4645
4646 if let Some(last_row_range) = row_ranges.last_mut() {
4647 if start <= last_row_range.end {
4648 last_row_range.end = end;
4649 continue;
4650 }
4651 }
4652 row_ranges.push(start..end);
4653 }
4654
4655 let snapshot = self.buffer.read(cx).snapshot(cx);
4656 let mut cursor_positions = Vec::new();
4657 for row_range in &row_ranges {
4658 let anchor = snapshot.anchor_before(Point::new(
4659 row_range.end - 1,
4660 snapshot.line_len(row_range.end - 1),
4661 ));
4662 cursor_positions.push(anchor.clone()..anchor);
4663 }
4664
4665 self.transact(cx, |this, cx| {
4666 for row_range in row_ranges.into_iter().rev() {
4667 for row in row_range.rev() {
4668 let end_of_line = Point::new(row, snapshot.line_len(row));
4669 let indent = snapshot.indent_size_for_line(row + 1);
4670 let start_of_next_line = Point::new(row + 1, indent.len);
4671
4672 let replace = if snapshot.line_len(row + 1) > indent.len {
4673 " "
4674 } else {
4675 ""
4676 };
4677
4678 this.buffer.update(cx, |buffer, cx| {
4679 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4680 });
4681 }
4682 }
4683
4684 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4685 s.select_anchor_ranges(cursor_positions)
4686 });
4687 });
4688 }
4689
4690 pub fn sort_lines_case_sensitive(
4691 &mut self,
4692 _: &SortLinesCaseSensitive,
4693 cx: &mut ViewContext<Self>,
4694 ) {
4695 self.manipulate_lines(cx, |lines| lines.sort())
4696 }
4697
4698 pub fn sort_lines_case_insensitive(
4699 &mut self,
4700 _: &SortLinesCaseInsensitive,
4701 cx: &mut ViewContext<Self>,
4702 ) {
4703 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4704 }
4705
4706 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4707 self.manipulate_lines(cx, |lines| lines.reverse())
4708 }
4709
4710 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4711 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4712 }
4713
4714 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4715 where
4716 Fn: FnMut(&mut [&str]),
4717 {
4718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4719 let buffer = self.buffer.read(cx).snapshot(cx);
4720
4721 let mut edits = Vec::new();
4722
4723 let selections = self.selections.all::<Point>(cx);
4724 let mut selections = selections.iter().peekable();
4725 let mut contiguous_row_selections = Vec::new();
4726 let mut new_selections = Vec::new();
4727
4728 while let Some(selection) = selections.next() {
4729 let (start_row, end_row) = consume_contiguous_rows(
4730 &mut contiguous_row_selections,
4731 selection,
4732 &display_map,
4733 &mut selections,
4734 );
4735
4736 let start_point = Point::new(start_row, 0);
4737 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4738 let text = buffer
4739 .text_for_range(start_point..end_point)
4740 .collect::<String>();
4741 let mut lines = text.split("\n").collect_vec();
4742
4743 let lines_len = lines.len();
4744 callback(&mut lines);
4745
4746 // This is a current limitation with selections.
4747 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4748 debug_assert!(
4749 lines.len() == lines_len,
4750 "callback should not change the number of lines"
4751 );
4752
4753 edits.push((start_point..end_point, lines.join("\n")));
4754 let start_anchor = buffer.anchor_after(start_point);
4755 let end_anchor = buffer.anchor_before(end_point);
4756
4757 // Make selection and push
4758 new_selections.push(Selection {
4759 id: selection.id,
4760 start: start_anchor.to_offset(&buffer),
4761 end: end_anchor.to_offset(&buffer),
4762 goal: SelectionGoal::None,
4763 reversed: selection.reversed,
4764 });
4765 }
4766
4767 self.transact(cx, |this, cx| {
4768 this.buffer.update(cx, |buffer, cx| {
4769 buffer.edit(edits, None, cx);
4770 });
4771
4772 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4773 s.select(new_selections);
4774 });
4775
4776 this.request_autoscroll(Autoscroll::fit(), cx);
4777 });
4778 }
4779
4780 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4781 self.manipulate_text(cx, |text| text.to_uppercase())
4782 }
4783
4784 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4785 self.manipulate_text(cx, |text| text.to_lowercase())
4786 }
4787
4788 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4789 self.manipulate_text(cx, |text| {
4790 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4791 // https://github.com/rutrum/convert-case/issues/16
4792 text.split("\n")
4793 .map(|line| line.to_case(Case::Title))
4794 .join("\n")
4795 })
4796 }
4797
4798 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4799 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4800 }
4801
4802 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4803 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4804 }
4805
4806 pub fn convert_to_upper_camel_case(
4807 &mut self,
4808 _: &ConvertToUpperCamelCase,
4809 cx: &mut ViewContext<Self>,
4810 ) {
4811 self.manipulate_text(cx, |text| {
4812 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4813 // https://github.com/rutrum/convert-case/issues/16
4814 text.split("\n")
4815 .map(|line| line.to_case(Case::UpperCamel))
4816 .join("\n")
4817 })
4818 }
4819
4820 pub fn convert_to_lower_camel_case(
4821 &mut self,
4822 _: &ConvertToLowerCamelCase,
4823 cx: &mut ViewContext<Self>,
4824 ) {
4825 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4826 }
4827
4828 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4829 where
4830 Fn: FnMut(&str) -> String,
4831 {
4832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4833 let buffer = self.buffer.read(cx).snapshot(cx);
4834
4835 let mut new_selections = Vec::new();
4836 let mut edits = Vec::new();
4837 let mut selection_adjustment = 0i32;
4838
4839 for selection in self.selections.all::<usize>(cx) {
4840 let selection_is_empty = selection.is_empty();
4841
4842 let (start, end) = if selection_is_empty {
4843 let word_range = movement::surrounding_word(
4844 &display_map,
4845 selection.start.to_display_point(&display_map),
4846 );
4847 let start = word_range.start.to_offset(&display_map, Bias::Left);
4848 let end = word_range.end.to_offset(&display_map, Bias::Left);
4849 (start, end)
4850 } else {
4851 (selection.start, selection.end)
4852 };
4853
4854 let text = buffer.text_for_range(start..end).collect::<String>();
4855 let old_length = text.len() as i32;
4856 let text = callback(&text);
4857
4858 new_selections.push(Selection {
4859 start: (start as i32 - selection_adjustment) as usize,
4860 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4861 goal: SelectionGoal::None,
4862 ..selection
4863 });
4864
4865 selection_adjustment += old_length - text.len() as i32;
4866
4867 edits.push((start..end, text));
4868 }
4869
4870 self.transact(cx, |this, cx| {
4871 this.buffer.update(cx, |buffer, cx| {
4872 buffer.edit(edits, None, cx);
4873 });
4874
4875 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4876 s.select(new_selections);
4877 });
4878
4879 this.request_autoscroll(Autoscroll::fit(), cx);
4880 });
4881 }
4882
4883 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4884 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4885 let buffer = &display_map.buffer_snapshot;
4886 let selections = self.selections.all::<Point>(cx);
4887
4888 let mut edits = Vec::new();
4889 let mut selections_iter = selections.iter().peekable();
4890 while let Some(selection) = selections_iter.next() {
4891 // Avoid duplicating the same lines twice.
4892 let mut rows = selection.spanned_rows(false, &display_map);
4893
4894 while let Some(next_selection) = selections_iter.peek() {
4895 let next_rows = next_selection.spanned_rows(false, &display_map);
4896 if next_rows.start < rows.end {
4897 rows.end = next_rows.end;
4898 selections_iter.next().unwrap();
4899 } else {
4900 break;
4901 }
4902 }
4903
4904 // Copy the text from the selected row region and splice it at the start of the region.
4905 let start = Point::new(rows.start, 0);
4906 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4907 let text = buffer
4908 .text_for_range(start..end)
4909 .chain(Some("\n"))
4910 .collect::<String>();
4911 edits.push((start..start, text));
4912 }
4913
4914 self.transact(cx, |this, cx| {
4915 this.buffer.update(cx, |buffer, cx| {
4916 buffer.edit(edits, None, cx);
4917 });
4918
4919 this.request_autoscroll(Autoscroll::fit(), cx);
4920 });
4921 }
4922
4923 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4924 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4925 let buffer = self.buffer.read(cx).snapshot(cx);
4926
4927 let mut edits = Vec::new();
4928 let mut unfold_ranges = Vec::new();
4929 let mut refold_ranges = Vec::new();
4930
4931 let selections = self.selections.all::<Point>(cx);
4932 let mut selections = selections.iter().peekable();
4933 let mut contiguous_row_selections = Vec::new();
4934 let mut new_selections = Vec::new();
4935
4936 while let Some(selection) = selections.next() {
4937 // Find all the selections that span a contiguous row range
4938 let (start_row, end_row) = consume_contiguous_rows(
4939 &mut contiguous_row_selections,
4940 selection,
4941 &display_map,
4942 &mut selections,
4943 );
4944
4945 // Move the text spanned by the row range to be before the line preceding the row range
4946 if start_row > 0 {
4947 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4948 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4949 let insertion_point = display_map
4950 .prev_line_boundary(Point::new(start_row - 1, 0))
4951 .0;
4952
4953 // Don't move lines across excerpts
4954 if buffer
4955 .excerpt_boundaries_in_range((
4956 Bound::Excluded(insertion_point),
4957 Bound::Included(range_to_move.end),
4958 ))
4959 .next()
4960 .is_none()
4961 {
4962 let text = buffer
4963 .text_for_range(range_to_move.clone())
4964 .flat_map(|s| s.chars())
4965 .skip(1)
4966 .chain(['\n'])
4967 .collect::<String>();
4968
4969 edits.push((
4970 buffer.anchor_after(range_to_move.start)
4971 ..buffer.anchor_before(range_to_move.end),
4972 String::new(),
4973 ));
4974 let insertion_anchor = buffer.anchor_after(insertion_point);
4975 edits.push((insertion_anchor..insertion_anchor, text));
4976
4977 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4978
4979 // Move selections up
4980 new_selections.extend(contiguous_row_selections.drain(..).map(
4981 |mut selection| {
4982 selection.start.row -= row_delta;
4983 selection.end.row -= row_delta;
4984 selection
4985 },
4986 ));
4987
4988 // Move folds up
4989 unfold_ranges.push(range_to_move.clone());
4990 for fold in display_map.folds_in_range(
4991 buffer.anchor_before(range_to_move.start)
4992 ..buffer.anchor_after(range_to_move.end),
4993 ) {
4994 let mut start = fold.range.start.to_point(&buffer);
4995 let mut end = fold.range.end.to_point(&buffer);
4996 start.row -= row_delta;
4997 end.row -= row_delta;
4998 refold_ranges.push(start..end);
4999 }
5000 }
5001 }
5002
5003 // If we didn't move line(s), preserve the existing selections
5004 new_selections.append(&mut contiguous_row_selections);
5005 }
5006
5007 self.transact(cx, |this, cx| {
5008 this.unfold_ranges(unfold_ranges, true, true, cx);
5009 this.buffer.update(cx, |buffer, cx| {
5010 for (range, text) in edits {
5011 buffer.edit([(range, text)], None, cx);
5012 }
5013 });
5014 this.fold_ranges(refold_ranges, true, cx);
5015 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5016 s.select(new_selections);
5017 })
5018 });
5019 }
5020
5021 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5022 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5023 let buffer = self.buffer.read(cx).snapshot(cx);
5024
5025 let mut edits = Vec::new();
5026 let mut unfold_ranges = Vec::new();
5027 let mut refold_ranges = Vec::new();
5028
5029 let selections = self.selections.all::<Point>(cx);
5030 let mut selections = selections.iter().peekable();
5031 let mut contiguous_row_selections = Vec::new();
5032 let mut new_selections = Vec::new();
5033
5034 while let Some(selection) = selections.next() {
5035 // Find all the selections that span a contiguous row range
5036 let (start_row, end_row) = consume_contiguous_rows(
5037 &mut contiguous_row_selections,
5038 selection,
5039 &display_map,
5040 &mut selections,
5041 );
5042
5043 // Move the text spanned by the row range to be after the last line of the row range
5044 if end_row <= buffer.max_point().row {
5045 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5046 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5047
5048 // Don't move lines across excerpt boundaries
5049 if buffer
5050 .excerpt_boundaries_in_range((
5051 Bound::Excluded(range_to_move.start),
5052 Bound::Included(insertion_point),
5053 ))
5054 .next()
5055 .is_none()
5056 {
5057 let mut text = String::from("\n");
5058 text.extend(buffer.text_for_range(range_to_move.clone()));
5059 text.pop(); // Drop trailing newline
5060 edits.push((
5061 buffer.anchor_after(range_to_move.start)
5062 ..buffer.anchor_before(range_to_move.end),
5063 String::new(),
5064 ));
5065 let insertion_anchor = buffer.anchor_after(insertion_point);
5066 edits.push((insertion_anchor..insertion_anchor, text));
5067
5068 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5069
5070 // Move selections down
5071 new_selections.extend(contiguous_row_selections.drain(..).map(
5072 |mut selection| {
5073 selection.start.row += row_delta;
5074 selection.end.row += row_delta;
5075 selection
5076 },
5077 ));
5078
5079 // Move folds down
5080 unfold_ranges.push(range_to_move.clone());
5081 for fold in display_map.folds_in_range(
5082 buffer.anchor_before(range_to_move.start)
5083 ..buffer.anchor_after(range_to_move.end),
5084 ) {
5085 let mut start = fold.range.start.to_point(&buffer);
5086 let mut end = fold.range.end.to_point(&buffer);
5087 start.row += row_delta;
5088 end.row += row_delta;
5089 refold_ranges.push(start..end);
5090 }
5091 }
5092 }
5093
5094 // If we didn't move line(s), preserve the existing selections
5095 new_selections.append(&mut contiguous_row_selections);
5096 }
5097
5098 self.transact(cx, |this, cx| {
5099 this.unfold_ranges(unfold_ranges, true, true, cx);
5100 this.buffer.update(cx, |buffer, cx| {
5101 for (range, text) in edits {
5102 buffer.edit([(range, text)], None, cx);
5103 }
5104 });
5105 this.fold_ranges(refold_ranges, true, cx);
5106 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5107 });
5108 }
5109
5110 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5111 let text_layout_details = &self.text_layout_details(cx);
5112 self.transact(cx, |this, cx| {
5113 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5114 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5115 let line_mode = s.line_mode;
5116 s.move_with(|display_map, selection| {
5117 if !selection.is_empty() || line_mode {
5118 return;
5119 }
5120
5121 let mut head = selection.head();
5122 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5123 if head.column() == display_map.line_len(head.row()) {
5124 transpose_offset = display_map
5125 .buffer_snapshot
5126 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5127 }
5128
5129 if transpose_offset == 0 {
5130 return;
5131 }
5132
5133 *head.column_mut() += 1;
5134 head = display_map.clip_point(head, Bias::Right);
5135 let goal = SelectionGoal::HorizontalPosition(
5136 display_map
5137 .x_for_display_point(head, &text_layout_details)
5138 .into(),
5139 );
5140 selection.collapse_to(head, goal);
5141
5142 let transpose_start = display_map
5143 .buffer_snapshot
5144 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5145 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5146 let transpose_end = display_map
5147 .buffer_snapshot
5148 .clip_offset(transpose_offset + 1, Bias::Right);
5149 if let Some(ch) =
5150 display_map.buffer_snapshot.chars_at(transpose_start).next()
5151 {
5152 edits.push((transpose_start..transpose_offset, String::new()));
5153 edits.push((transpose_end..transpose_end, ch.to_string()));
5154 }
5155 }
5156 });
5157 edits
5158 });
5159 this.buffer
5160 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5161 let selections = this.selections.all::<usize>(cx);
5162 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5163 s.select(selections);
5164 });
5165 });
5166 }
5167
5168 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5169 let mut text = String::new();
5170 let buffer = self.buffer.read(cx).snapshot(cx);
5171 let mut selections = self.selections.all::<Point>(cx);
5172 let mut clipboard_selections = Vec::with_capacity(selections.len());
5173 {
5174 let max_point = buffer.max_point();
5175 let mut is_first = true;
5176 for selection in &mut selections {
5177 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5178 if is_entire_line {
5179 selection.start = Point::new(selection.start.row, 0);
5180 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5181 selection.goal = SelectionGoal::None;
5182 }
5183 if is_first {
5184 is_first = false;
5185 } else {
5186 text += "\n";
5187 }
5188 let mut len = 0;
5189 for chunk in buffer.text_for_range(selection.start..selection.end) {
5190 text.push_str(chunk);
5191 len += chunk.len();
5192 }
5193 clipboard_selections.push(ClipboardSelection {
5194 len,
5195 is_entire_line,
5196 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5197 });
5198 }
5199 }
5200
5201 self.transact(cx, |this, cx| {
5202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5203 s.select(selections);
5204 });
5205 this.insert("", cx);
5206 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5207 });
5208 }
5209
5210 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5211 let selections = self.selections.all::<Point>(cx);
5212 let buffer = self.buffer.read(cx).read(cx);
5213 let mut text = String::new();
5214
5215 let mut clipboard_selections = Vec::with_capacity(selections.len());
5216 {
5217 let max_point = buffer.max_point();
5218 let mut is_first = true;
5219 for selection in selections.iter() {
5220 let mut start = selection.start;
5221 let mut end = selection.end;
5222 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5223 if is_entire_line {
5224 start = Point::new(start.row, 0);
5225 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5226 }
5227 if is_first {
5228 is_first = false;
5229 } else {
5230 text += "\n";
5231 }
5232 let mut len = 0;
5233 for chunk in buffer.text_for_range(start..end) {
5234 text.push_str(chunk);
5235 len += chunk.len();
5236 }
5237 clipboard_selections.push(ClipboardSelection {
5238 len,
5239 is_entire_line,
5240 first_line_indent: buffer.indent_size_for_line(start.row).len,
5241 });
5242 }
5243 }
5244
5245 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5246 }
5247
5248 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5249 if self.read_only(cx) {
5250 return;
5251 }
5252
5253 self.transact(cx, |this, cx| {
5254 if let Some(item) = cx.read_from_clipboard() {
5255 let clipboard_text = Cow::Borrowed(item.text());
5256 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5257 let old_selections = this.selections.all::<usize>(cx);
5258 let all_selections_were_entire_line =
5259 clipboard_selections.iter().all(|s| s.is_entire_line);
5260 let first_selection_indent_column =
5261 clipboard_selections.first().map(|s| s.first_line_indent);
5262 if clipboard_selections.len() != old_selections.len() {
5263 clipboard_selections.drain(..);
5264 }
5265
5266 this.buffer.update(cx, |buffer, cx| {
5267 let snapshot = buffer.read(cx);
5268 let mut start_offset = 0;
5269 let mut edits = Vec::new();
5270 let mut original_indent_columns = Vec::new();
5271 let line_mode = this.selections.line_mode;
5272 for (ix, selection) in old_selections.iter().enumerate() {
5273 let to_insert;
5274 let entire_line;
5275 let original_indent_column;
5276 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5277 let end_offset = start_offset + clipboard_selection.len;
5278 to_insert = &clipboard_text[start_offset..end_offset];
5279 entire_line = clipboard_selection.is_entire_line;
5280 start_offset = end_offset + 1;
5281 original_indent_column =
5282 Some(clipboard_selection.first_line_indent);
5283 } else {
5284 to_insert = clipboard_text.as_str();
5285 entire_line = all_selections_were_entire_line;
5286 original_indent_column = first_selection_indent_column
5287 }
5288
5289 // If the corresponding selection was empty when this slice of the
5290 // clipboard text was written, then the entire line containing the
5291 // selection was copied. If this selection is also currently empty,
5292 // then paste the line before the current line of the buffer.
5293 let range = if selection.is_empty() && !line_mode && entire_line {
5294 let column = selection.start.to_point(&snapshot).column as usize;
5295 let line_start = selection.start - column;
5296 line_start..line_start
5297 } else {
5298 selection.range()
5299 };
5300
5301 edits.push((range, to_insert));
5302 original_indent_columns.extend(original_indent_column);
5303 }
5304 drop(snapshot);
5305
5306 buffer.edit(
5307 edits,
5308 Some(AutoindentMode::Block {
5309 original_indent_columns,
5310 }),
5311 cx,
5312 );
5313 });
5314
5315 let selections = this.selections.all::<usize>(cx);
5316 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5317 } else {
5318 this.insert(&clipboard_text, cx);
5319 }
5320 }
5321 });
5322 }
5323
5324 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5325 if self.read_only(cx) {
5326 return;
5327 }
5328
5329 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5330 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5331 self.change_selections(None, cx, |s| {
5332 s.select_anchors(selections.to_vec());
5333 });
5334 }
5335 self.request_autoscroll(Autoscroll::fit(), cx);
5336 self.unmark_text(cx);
5337 self.refresh_copilot_suggestions(true, cx);
5338 cx.emit(EditorEvent::Edited);
5339 }
5340 }
5341
5342 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5343 if self.read_only(cx) {
5344 return;
5345 }
5346
5347 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5348 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5349 {
5350 self.change_selections(None, cx, |s| {
5351 s.select_anchors(selections.to_vec());
5352 });
5353 }
5354 self.request_autoscroll(Autoscroll::fit(), cx);
5355 self.unmark_text(cx);
5356 self.refresh_copilot_suggestions(true, cx);
5357 cx.emit(EditorEvent::Edited);
5358 }
5359 }
5360
5361 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5362 self.buffer
5363 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5364 }
5365
5366 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5368 let line_mode = s.line_mode;
5369 s.move_with(|map, selection| {
5370 let cursor = if selection.is_empty() && !line_mode {
5371 movement::left(map, selection.start)
5372 } else {
5373 selection.start
5374 };
5375 selection.collapse_to(cursor, SelectionGoal::None);
5376 });
5377 })
5378 }
5379
5380 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5382 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5383 })
5384 }
5385
5386 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5388 let line_mode = s.line_mode;
5389 s.move_with(|map, selection| {
5390 let cursor = if selection.is_empty() && !line_mode {
5391 movement::right(map, selection.end)
5392 } else {
5393 selection.end
5394 };
5395 selection.collapse_to(cursor, SelectionGoal::None)
5396 });
5397 })
5398 }
5399
5400 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5401 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5402 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5403 })
5404 }
5405
5406 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5407 if self.take_rename(true, cx).is_some() {
5408 return;
5409 }
5410
5411 if matches!(self.mode, EditorMode::SingleLine) {
5412 cx.propagate();
5413 return;
5414 }
5415
5416 let text_layout_details = &self.text_layout_details(cx);
5417
5418 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5419 let line_mode = s.line_mode;
5420 s.move_with(|map, selection| {
5421 if !selection.is_empty() && !line_mode {
5422 selection.goal = SelectionGoal::None;
5423 }
5424 let (cursor, goal) = movement::up(
5425 map,
5426 selection.start,
5427 selection.goal,
5428 false,
5429 &text_layout_details,
5430 );
5431 selection.collapse_to(cursor, goal);
5432 });
5433 })
5434 }
5435
5436 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5437 if self.take_rename(true, cx).is_some() {
5438 return;
5439 }
5440
5441 if matches!(self.mode, EditorMode::SingleLine) {
5442 cx.propagate();
5443 return;
5444 }
5445
5446 let row_count = if let Some(row_count) = self.visible_line_count() {
5447 row_count as u32 - 1
5448 } else {
5449 return;
5450 };
5451
5452 let autoscroll = if action.center_cursor {
5453 Autoscroll::center()
5454 } else {
5455 Autoscroll::fit()
5456 };
5457
5458 let text_layout_details = &self.text_layout_details(cx);
5459
5460 self.change_selections(Some(autoscroll), cx, |s| {
5461 let line_mode = s.line_mode;
5462 s.move_with(|map, selection| {
5463 if !selection.is_empty() && !line_mode {
5464 selection.goal = SelectionGoal::None;
5465 }
5466 let (cursor, goal) = movement::up_by_rows(
5467 map,
5468 selection.end,
5469 row_count,
5470 selection.goal,
5471 false,
5472 &text_layout_details,
5473 );
5474 selection.collapse_to(cursor, goal);
5475 });
5476 });
5477 }
5478
5479 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5480 let text_layout_details = &self.text_layout_details(cx);
5481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5482 s.move_heads_with(|map, head, goal| {
5483 movement::up(map, head, goal, false, &text_layout_details)
5484 })
5485 })
5486 }
5487
5488 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5489 self.take_rename(true, cx);
5490
5491 if self.mode == EditorMode::SingleLine {
5492 cx.propagate();
5493 return;
5494 }
5495
5496 let text_layout_details = &self.text_layout_details(cx);
5497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5498 let line_mode = s.line_mode;
5499 s.move_with(|map, selection| {
5500 if !selection.is_empty() && !line_mode {
5501 selection.goal = SelectionGoal::None;
5502 }
5503 let (cursor, goal) = movement::down(
5504 map,
5505 selection.end,
5506 selection.goal,
5507 false,
5508 &text_layout_details,
5509 );
5510 selection.collapse_to(cursor, goal);
5511 });
5512 });
5513 }
5514
5515 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5516 if self.take_rename(true, cx).is_some() {
5517 return;
5518 }
5519
5520 if self
5521 .context_menu
5522 .write()
5523 .as_mut()
5524 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5525 .unwrap_or(false)
5526 {
5527 return;
5528 }
5529
5530 if matches!(self.mode, EditorMode::SingleLine) {
5531 cx.propagate();
5532 return;
5533 }
5534
5535 let row_count = if let Some(row_count) = self.visible_line_count() {
5536 row_count as u32 - 1
5537 } else {
5538 return;
5539 };
5540
5541 let autoscroll = if action.center_cursor {
5542 Autoscroll::center()
5543 } else {
5544 Autoscroll::fit()
5545 };
5546
5547 let text_layout_details = &self.text_layout_details(cx);
5548 self.change_selections(Some(autoscroll), cx, |s| {
5549 let line_mode = s.line_mode;
5550 s.move_with(|map, selection| {
5551 if !selection.is_empty() && !line_mode {
5552 selection.goal = SelectionGoal::None;
5553 }
5554 let (cursor, goal) = movement::down_by_rows(
5555 map,
5556 selection.end,
5557 row_count,
5558 selection.goal,
5559 false,
5560 &text_layout_details,
5561 );
5562 selection.collapse_to(cursor, goal);
5563 });
5564 });
5565 }
5566
5567 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5568 let text_layout_details = &self.text_layout_details(cx);
5569 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5570 s.move_heads_with(|map, head, goal| {
5571 movement::down(map, head, goal, false, &text_layout_details)
5572 })
5573 });
5574 }
5575
5576 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5577 if let Some(context_menu) = self.context_menu.write().as_mut() {
5578 context_menu.select_first(self.project.as_ref(), cx);
5579 }
5580 }
5581
5582 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5583 if let Some(context_menu) = self.context_menu.write().as_mut() {
5584 context_menu.select_prev(self.project.as_ref(), cx);
5585 }
5586 }
5587
5588 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5589 if let Some(context_menu) = self.context_menu.write().as_mut() {
5590 context_menu.select_next(self.project.as_ref(), cx);
5591 }
5592 }
5593
5594 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5595 if let Some(context_menu) = self.context_menu.write().as_mut() {
5596 context_menu.select_last(self.project.as_ref(), cx);
5597 }
5598 }
5599
5600 pub fn move_to_previous_word_start(
5601 &mut self,
5602 _: &MoveToPreviousWordStart,
5603 cx: &mut ViewContext<Self>,
5604 ) {
5605 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5606 s.move_cursors_with(|map, head, _| {
5607 (
5608 movement::previous_word_start(map, head),
5609 SelectionGoal::None,
5610 )
5611 });
5612 })
5613 }
5614
5615 pub fn move_to_previous_subword_start(
5616 &mut self,
5617 _: &MoveToPreviousSubwordStart,
5618 cx: &mut ViewContext<Self>,
5619 ) {
5620 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5621 s.move_cursors_with(|map, head, _| {
5622 (
5623 movement::previous_subword_start(map, head),
5624 SelectionGoal::None,
5625 )
5626 });
5627 })
5628 }
5629
5630 pub fn select_to_previous_word_start(
5631 &mut self,
5632 _: &SelectToPreviousWordStart,
5633 cx: &mut ViewContext<Self>,
5634 ) {
5635 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5636 s.move_heads_with(|map, head, _| {
5637 (
5638 movement::previous_word_start(map, head),
5639 SelectionGoal::None,
5640 )
5641 });
5642 })
5643 }
5644
5645 pub fn select_to_previous_subword_start(
5646 &mut self,
5647 _: &SelectToPreviousSubwordStart,
5648 cx: &mut ViewContext<Self>,
5649 ) {
5650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5651 s.move_heads_with(|map, head, _| {
5652 (
5653 movement::previous_subword_start(map, head),
5654 SelectionGoal::None,
5655 )
5656 });
5657 })
5658 }
5659
5660 pub fn delete_to_previous_word_start(
5661 &mut self,
5662 _: &DeleteToPreviousWordStart,
5663 cx: &mut ViewContext<Self>,
5664 ) {
5665 self.transact(cx, |this, cx| {
5666 this.select_autoclose_pair(cx);
5667 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5668 let line_mode = s.line_mode;
5669 s.move_with(|map, selection| {
5670 if selection.is_empty() && !line_mode {
5671 let cursor = movement::previous_word_start(map, selection.head());
5672 selection.set_head(cursor, SelectionGoal::None);
5673 }
5674 });
5675 });
5676 this.insert("", cx);
5677 });
5678 }
5679
5680 pub fn delete_to_previous_subword_start(
5681 &mut self,
5682 _: &DeleteToPreviousSubwordStart,
5683 cx: &mut ViewContext<Self>,
5684 ) {
5685 self.transact(cx, |this, cx| {
5686 this.select_autoclose_pair(cx);
5687 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5688 let line_mode = s.line_mode;
5689 s.move_with(|map, selection| {
5690 if selection.is_empty() && !line_mode {
5691 let cursor = movement::previous_subword_start(map, selection.head());
5692 selection.set_head(cursor, SelectionGoal::None);
5693 }
5694 });
5695 });
5696 this.insert("", cx);
5697 });
5698 }
5699
5700 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5702 s.move_cursors_with(|map, head, _| {
5703 (movement::next_word_end(map, head), SelectionGoal::None)
5704 });
5705 })
5706 }
5707
5708 pub fn move_to_next_subword_end(
5709 &mut self,
5710 _: &MoveToNextSubwordEnd,
5711 cx: &mut ViewContext<Self>,
5712 ) {
5713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 s.move_cursors_with(|map, head, _| {
5715 (movement::next_subword_end(map, head), SelectionGoal::None)
5716 });
5717 })
5718 }
5719
5720 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5722 s.move_heads_with(|map, head, _| {
5723 (movement::next_word_end(map, head), SelectionGoal::None)
5724 });
5725 })
5726 }
5727
5728 pub fn select_to_next_subword_end(
5729 &mut self,
5730 _: &SelectToNextSubwordEnd,
5731 cx: &mut ViewContext<Self>,
5732 ) {
5733 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5734 s.move_heads_with(|map, head, _| {
5735 (movement::next_subword_end(map, head), SelectionGoal::None)
5736 });
5737 })
5738 }
5739
5740 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5741 self.transact(cx, |this, cx| {
5742 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5743 let line_mode = s.line_mode;
5744 s.move_with(|map, selection| {
5745 if selection.is_empty() && !line_mode {
5746 let cursor = movement::next_word_end(map, selection.head());
5747 selection.set_head(cursor, SelectionGoal::None);
5748 }
5749 });
5750 });
5751 this.insert("", cx);
5752 });
5753 }
5754
5755 pub fn delete_to_next_subword_end(
5756 &mut self,
5757 _: &DeleteToNextSubwordEnd,
5758 cx: &mut ViewContext<Self>,
5759 ) {
5760 self.transact(cx, |this, cx| {
5761 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5762 s.move_with(|map, selection| {
5763 if selection.is_empty() {
5764 let cursor = movement::next_subword_end(map, selection.head());
5765 selection.set_head(cursor, SelectionGoal::None);
5766 }
5767 });
5768 });
5769 this.insert("", cx);
5770 });
5771 }
5772
5773 pub fn move_to_beginning_of_line(
5774 &mut self,
5775 _: &MoveToBeginningOfLine,
5776 cx: &mut ViewContext<Self>,
5777 ) {
5778 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5779 s.move_cursors_with(|map, head, _| {
5780 (
5781 movement::indented_line_beginning(map, head, true),
5782 SelectionGoal::None,
5783 )
5784 });
5785 })
5786 }
5787
5788 pub fn select_to_beginning_of_line(
5789 &mut self,
5790 action: &SelectToBeginningOfLine,
5791 cx: &mut ViewContext<Self>,
5792 ) {
5793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5794 s.move_heads_with(|map, head, _| {
5795 (
5796 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5797 SelectionGoal::None,
5798 )
5799 });
5800 });
5801 }
5802
5803 pub fn delete_to_beginning_of_line(
5804 &mut self,
5805 _: &DeleteToBeginningOfLine,
5806 cx: &mut ViewContext<Self>,
5807 ) {
5808 self.transact(cx, |this, cx| {
5809 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5810 s.move_with(|_, selection| {
5811 selection.reversed = true;
5812 });
5813 });
5814
5815 this.select_to_beginning_of_line(
5816 &SelectToBeginningOfLine {
5817 stop_at_soft_wraps: false,
5818 },
5819 cx,
5820 );
5821 this.backspace(&Backspace, cx);
5822 });
5823 }
5824
5825 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5827 s.move_cursors_with(|map, head, _| {
5828 (movement::line_end(map, head, true), SelectionGoal::None)
5829 });
5830 })
5831 }
5832
5833 pub fn select_to_end_of_line(
5834 &mut self,
5835 action: &SelectToEndOfLine,
5836 cx: &mut ViewContext<Self>,
5837 ) {
5838 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5839 s.move_heads_with(|map, head, _| {
5840 (
5841 movement::line_end(map, head, action.stop_at_soft_wraps),
5842 SelectionGoal::None,
5843 )
5844 });
5845 })
5846 }
5847
5848 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5849 self.transact(cx, |this, cx| {
5850 this.select_to_end_of_line(
5851 &SelectToEndOfLine {
5852 stop_at_soft_wraps: false,
5853 },
5854 cx,
5855 );
5856 this.delete(&Delete, cx);
5857 });
5858 }
5859
5860 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5861 self.transact(cx, |this, cx| {
5862 this.select_to_end_of_line(
5863 &SelectToEndOfLine {
5864 stop_at_soft_wraps: false,
5865 },
5866 cx,
5867 );
5868 this.cut(&Cut, cx);
5869 });
5870 }
5871
5872 pub fn move_to_start_of_paragraph(
5873 &mut self,
5874 _: &MoveToStartOfParagraph,
5875 cx: &mut ViewContext<Self>,
5876 ) {
5877 if matches!(self.mode, EditorMode::SingleLine) {
5878 cx.propagate();
5879 return;
5880 }
5881
5882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5883 s.move_with(|map, selection| {
5884 selection.collapse_to(
5885 movement::start_of_paragraph(map, selection.head(), 1),
5886 SelectionGoal::None,
5887 )
5888 });
5889 })
5890 }
5891
5892 pub fn move_to_end_of_paragraph(
5893 &mut self,
5894 _: &MoveToEndOfParagraph,
5895 cx: &mut ViewContext<Self>,
5896 ) {
5897 if matches!(self.mode, EditorMode::SingleLine) {
5898 cx.propagate();
5899 return;
5900 }
5901
5902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5903 s.move_with(|map, selection| {
5904 selection.collapse_to(
5905 movement::end_of_paragraph(map, selection.head(), 1),
5906 SelectionGoal::None,
5907 )
5908 });
5909 })
5910 }
5911
5912 pub fn select_to_start_of_paragraph(
5913 &mut self,
5914 _: &SelectToStartOfParagraph,
5915 cx: &mut ViewContext<Self>,
5916 ) {
5917 if matches!(self.mode, EditorMode::SingleLine) {
5918 cx.propagate();
5919 return;
5920 }
5921
5922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5923 s.move_heads_with(|map, head, _| {
5924 (
5925 movement::start_of_paragraph(map, head, 1),
5926 SelectionGoal::None,
5927 )
5928 });
5929 })
5930 }
5931
5932 pub fn select_to_end_of_paragraph(
5933 &mut self,
5934 _: &SelectToEndOfParagraph,
5935 cx: &mut ViewContext<Self>,
5936 ) {
5937 if matches!(self.mode, EditorMode::SingleLine) {
5938 cx.propagate();
5939 return;
5940 }
5941
5942 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5943 s.move_heads_with(|map, head, _| {
5944 (
5945 movement::end_of_paragraph(map, head, 1),
5946 SelectionGoal::None,
5947 )
5948 });
5949 })
5950 }
5951
5952 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5953 if matches!(self.mode, EditorMode::SingleLine) {
5954 cx.propagate();
5955 return;
5956 }
5957
5958 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5959 s.select_ranges(vec![0..0]);
5960 });
5961 }
5962
5963 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5964 let mut selection = self.selections.last::<Point>(cx);
5965 selection.set_head(Point::zero(), SelectionGoal::None);
5966
5967 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5968 s.select(vec![selection]);
5969 });
5970 }
5971
5972 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5973 if matches!(self.mode, EditorMode::SingleLine) {
5974 cx.propagate();
5975 return;
5976 }
5977
5978 let cursor = self.buffer.read(cx).read(cx).len();
5979 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5980 s.select_ranges(vec![cursor..cursor])
5981 });
5982 }
5983
5984 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
5985 self.nav_history = nav_history;
5986 }
5987
5988 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
5989 self.nav_history.as_ref()
5990 }
5991
5992 fn push_to_nav_history(
5993 &mut self,
5994 cursor_anchor: Anchor,
5995 new_position: Option<Point>,
5996 cx: &mut ViewContext<Self>,
5997 ) {
5998 if let Some(nav_history) = self.nav_history.as_mut() {
5999 let buffer = self.buffer.read(cx).read(cx);
6000 let cursor_position = cursor_anchor.to_point(&buffer);
6001 let scroll_state = self.scroll_manager.anchor();
6002 let scroll_top_row = scroll_state.top_row(&buffer);
6003 drop(buffer);
6004
6005 if let Some(new_position) = new_position {
6006 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6007 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6008 return;
6009 }
6010 }
6011
6012 nav_history.push(
6013 Some(NavigationData {
6014 cursor_anchor,
6015 cursor_position,
6016 scroll_anchor: scroll_state,
6017 scroll_top_row,
6018 }),
6019 cx,
6020 );
6021 }
6022 }
6023
6024 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6025 let buffer = self.buffer.read(cx).snapshot(cx);
6026 let mut selection = self.selections.first::<usize>(cx);
6027 selection.set_head(buffer.len(), SelectionGoal::None);
6028 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6029 s.select(vec![selection]);
6030 });
6031 }
6032
6033 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6034 let end = self.buffer.read(cx).read(cx).len();
6035 self.change_selections(None, cx, |s| {
6036 s.select_ranges(vec![0..end]);
6037 });
6038 }
6039
6040 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6041 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6042 let mut selections = self.selections.all::<Point>(cx);
6043 let max_point = display_map.buffer_snapshot.max_point();
6044 for selection in &mut selections {
6045 let rows = selection.spanned_rows(true, &display_map);
6046 selection.start = Point::new(rows.start, 0);
6047 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6048 selection.reversed = false;
6049 }
6050 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6051 s.select(selections);
6052 });
6053 }
6054
6055 pub fn split_selection_into_lines(
6056 &mut self,
6057 _: &SplitSelectionIntoLines,
6058 cx: &mut ViewContext<Self>,
6059 ) {
6060 let mut to_unfold = Vec::new();
6061 let mut new_selection_ranges = Vec::new();
6062 {
6063 let selections = self.selections.all::<Point>(cx);
6064 let buffer = self.buffer.read(cx).read(cx);
6065 for selection in selections {
6066 for row in selection.start.row..selection.end.row {
6067 let cursor = Point::new(row, buffer.line_len(row));
6068 new_selection_ranges.push(cursor..cursor);
6069 }
6070 new_selection_ranges.push(selection.end..selection.end);
6071 to_unfold.push(selection.start..selection.end);
6072 }
6073 }
6074 self.unfold_ranges(to_unfold, true, true, cx);
6075 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6076 s.select_ranges(new_selection_ranges);
6077 });
6078 }
6079
6080 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6081 self.add_selection(true, cx);
6082 }
6083
6084 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6085 self.add_selection(false, cx);
6086 }
6087
6088 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6089 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6090 let mut selections = self.selections.all::<Point>(cx);
6091 let text_layout_details = self.text_layout_details(cx);
6092 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6093 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6094 let range = oldest_selection.display_range(&display_map).sorted();
6095
6096 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6097 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6098 let positions = start_x.min(end_x)..start_x.max(end_x);
6099
6100 selections.clear();
6101 let mut stack = Vec::new();
6102 for row in range.start.row()..=range.end.row() {
6103 if let Some(selection) = self.selections.build_columnar_selection(
6104 &display_map,
6105 row,
6106 &positions,
6107 oldest_selection.reversed,
6108 &text_layout_details,
6109 ) {
6110 stack.push(selection.id);
6111 selections.push(selection);
6112 }
6113 }
6114
6115 if above {
6116 stack.reverse();
6117 }
6118
6119 AddSelectionsState { above, stack }
6120 });
6121
6122 let last_added_selection = *state.stack.last().unwrap();
6123 let mut new_selections = Vec::new();
6124 if above == state.above {
6125 let end_row = if above {
6126 0
6127 } else {
6128 display_map.max_point().row()
6129 };
6130
6131 'outer: for selection in selections {
6132 if selection.id == last_added_selection {
6133 let range = selection.display_range(&display_map).sorted();
6134 debug_assert_eq!(range.start.row(), range.end.row());
6135 let mut row = range.start.row();
6136 let positions =
6137 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6138 px(start)..px(end)
6139 } else {
6140 let start_x =
6141 display_map.x_for_display_point(range.start, &text_layout_details);
6142 let end_x =
6143 display_map.x_for_display_point(range.end, &text_layout_details);
6144 start_x.min(end_x)..start_x.max(end_x)
6145 };
6146
6147 while row != end_row {
6148 if above {
6149 row -= 1;
6150 } else {
6151 row += 1;
6152 }
6153
6154 if let Some(new_selection) = self.selections.build_columnar_selection(
6155 &display_map,
6156 row,
6157 &positions,
6158 selection.reversed,
6159 &text_layout_details,
6160 ) {
6161 state.stack.push(new_selection.id);
6162 if above {
6163 new_selections.push(new_selection);
6164 new_selections.push(selection);
6165 } else {
6166 new_selections.push(selection);
6167 new_selections.push(new_selection);
6168 }
6169
6170 continue 'outer;
6171 }
6172 }
6173 }
6174
6175 new_selections.push(selection);
6176 }
6177 } else {
6178 new_selections = selections;
6179 new_selections.retain(|s| s.id != last_added_selection);
6180 state.stack.pop();
6181 }
6182
6183 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6184 s.select(new_selections);
6185 });
6186 if state.stack.len() > 1 {
6187 self.add_selections_state = Some(state);
6188 }
6189 }
6190
6191 pub fn select_next_match_internal(
6192 &mut self,
6193 display_map: &DisplaySnapshot,
6194 replace_newest: bool,
6195 autoscroll: Option<Autoscroll>,
6196 cx: &mut ViewContext<Self>,
6197 ) -> Result<()> {
6198 fn select_next_match_ranges(
6199 this: &mut Editor,
6200 range: Range<usize>,
6201 replace_newest: bool,
6202 auto_scroll: Option<Autoscroll>,
6203 cx: &mut ViewContext<Editor>,
6204 ) {
6205 this.unfold_ranges([range.clone()], false, true, cx);
6206 this.change_selections(auto_scroll, cx, |s| {
6207 if replace_newest {
6208 s.delete(s.newest_anchor().id);
6209 }
6210 s.insert_range(range.clone());
6211 });
6212 }
6213
6214 let buffer = &display_map.buffer_snapshot;
6215 let mut selections = self.selections.all::<usize>(cx);
6216 if let Some(mut select_next_state) = self.select_next_state.take() {
6217 let query = &select_next_state.query;
6218 if !select_next_state.done {
6219 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6220 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6221 let mut next_selected_range = None;
6222
6223 let bytes_after_last_selection =
6224 buffer.bytes_in_range(last_selection.end..buffer.len());
6225 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6226 let query_matches = query
6227 .stream_find_iter(bytes_after_last_selection)
6228 .map(|result| (last_selection.end, result))
6229 .chain(
6230 query
6231 .stream_find_iter(bytes_before_first_selection)
6232 .map(|result| (0, result)),
6233 );
6234
6235 for (start_offset, query_match) in query_matches {
6236 let query_match = query_match.unwrap(); // can only fail due to I/O
6237 let offset_range =
6238 start_offset + query_match.start()..start_offset + query_match.end();
6239 let display_range = offset_range.start.to_display_point(&display_map)
6240 ..offset_range.end.to_display_point(&display_map);
6241
6242 if !select_next_state.wordwise
6243 || (!movement::is_inside_word(&display_map, display_range.start)
6244 && !movement::is_inside_word(&display_map, display_range.end))
6245 {
6246 if selections
6247 .iter()
6248 .find(|selection| selection.range().overlaps(&offset_range))
6249 .is_none()
6250 {
6251 next_selected_range = Some(offset_range);
6252 break;
6253 }
6254 }
6255 }
6256
6257 if let Some(next_selected_range) = next_selected_range {
6258 select_next_match_ranges(
6259 self,
6260 next_selected_range,
6261 replace_newest,
6262 autoscroll,
6263 cx,
6264 );
6265 } else {
6266 select_next_state.done = true;
6267 }
6268 }
6269
6270 self.select_next_state = Some(select_next_state);
6271 } else {
6272 let mut only_carets = true;
6273 let mut same_text_selected = true;
6274 let mut selected_text = None;
6275
6276 let mut selections_iter = selections.iter().peekable();
6277 while let Some(selection) = selections_iter.next() {
6278 if selection.start != selection.end {
6279 only_carets = false;
6280 }
6281
6282 if same_text_selected {
6283 if selected_text.is_none() {
6284 selected_text =
6285 Some(buffer.text_for_range(selection.range()).collect::<String>());
6286 }
6287
6288 if let Some(next_selection) = selections_iter.peek() {
6289 if next_selection.range().len() == selection.range().len() {
6290 let next_selected_text = buffer
6291 .text_for_range(next_selection.range())
6292 .collect::<String>();
6293 if Some(next_selected_text) != selected_text {
6294 same_text_selected = false;
6295 selected_text = None;
6296 }
6297 } else {
6298 same_text_selected = false;
6299 selected_text = None;
6300 }
6301 }
6302 }
6303 }
6304
6305 if only_carets {
6306 for selection in &mut selections {
6307 let word_range = movement::surrounding_word(
6308 &display_map,
6309 selection.start.to_display_point(&display_map),
6310 );
6311 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6312 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6313 selection.goal = SelectionGoal::None;
6314 selection.reversed = false;
6315 select_next_match_ranges(
6316 self,
6317 selection.start..selection.end,
6318 replace_newest,
6319 autoscroll,
6320 cx,
6321 );
6322 }
6323
6324 if selections.len() == 1 {
6325 let selection = selections
6326 .last()
6327 .expect("ensured that there's only one selection");
6328 let query = buffer
6329 .text_for_range(selection.start..selection.end)
6330 .collect::<String>();
6331 let is_empty = query.is_empty();
6332 let select_state = SelectNextState {
6333 query: AhoCorasick::new(&[query])?,
6334 wordwise: true,
6335 done: is_empty,
6336 };
6337 self.select_next_state = Some(select_state);
6338 } else {
6339 self.select_next_state = None;
6340 }
6341 } else if let Some(selected_text) = selected_text {
6342 self.select_next_state = Some(SelectNextState {
6343 query: AhoCorasick::new(&[selected_text])?,
6344 wordwise: false,
6345 done: false,
6346 });
6347 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6348 }
6349 }
6350 Ok(())
6351 }
6352
6353 pub fn select_all_matches(
6354 &mut self,
6355 action: &SelectAllMatches,
6356 cx: &mut ViewContext<Self>,
6357 ) -> Result<()> {
6358 self.push_to_selection_history();
6359 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6360
6361 loop {
6362 self.select_next_match_internal(&display_map, action.replace_newest, None, cx)?;
6363
6364 if self
6365 .select_next_state
6366 .as_ref()
6367 .map(|selection_state| selection_state.done)
6368 .unwrap_or(true)
6369 {
6370 break;
6371 }
6372 }
6373
6374 Ok(())
6375 }
6376
6377 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6378 self.push_to_selection_history();
6379 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6380 self.select_next_match_internal(
6381 &display_map,
6382 action.replace_newest,
6383 Some(Autoscroll::newest()),
6384 cx,
6385 )?;
6386 Ok(())
6387 }
6388
6389 pub fn select_previous(
6390 &mut self,
6391 action: &SelectPrevious,
6392 cx: &mut ViewContext<Self>,
6393 ) -> Result<()> {
6394 self.push_to_selection_history();
6395 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6396 let buffer = &display_map.buffer_snapshot;
6397 let mut selections = self.selections.all::<usize>(cx);
6398 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6399 let query = &select_prev_state.query;
6400 if !select_prev_state.done {
6401 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6402 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6403 let mut next_selected_range = None;
6404 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6405 let bytes_before_last_selection =
6406 buffer.reversed_bytes_in_range(0..last_selection.start);
6407 let bytes_after_first_selection =
6408 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6409 let query_matches = query
6410 .stream_find_iter(bytes_before_last_selection)
6411 .map(|result| (last_selection.start, result))
6412 .chain(
6413 query
6414 .stream_find_iter(bytes_after_first_selection)
6415 .map(|result| (buffer.len(), result)),
6416 );
6417 for (end_offset, query_match) in query_matches {
6418 let query_match = query_match.unwrap(); // can only fail due to I/O
6419 let offset_range =
6420 end_offset - query_match.end()..end_offset - query_match.start();
6421 let display_range = offset_range.start.to_display_point(&display_map)
6422 ..offset_range.end.to_display_point(&display_map);
6423
6424 if !select_prev_state.wordwise
6425 || (!movement::is_inside_word(&display_map, display_range.start)
6426 && !movement::is_inside_word(&display_map, display_range.end))
6427 {
6428 next_selected_range = Some(offset_range);
6429 break;
6430 }
6431 }
6432
6433 if let Some(next_selected_range) = next_selected_range {
6434 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6435 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6436 if action.replace_newest {
6437 s.delete(s.newest_anchor().id);
6438 }
6439 s.insert_range(next_selected_range);
6440 });
6441 } else {
6442 select_prev_state.done = true;
6443 }
6444 }
6445
6446 self.select_prev_state = Some(select_prev_state);
6447 } else {
6448 let mut only_carets = true;
6449 let mut same_text_selected = true;
6450 let mut selected_text = None;
6451
6452 let mut selections_iter = selections.iter().peekable();
6453 while let Some(selection) = selections_iter.next() {
6454 if selection.start != selection.end {
6455 only_carets = false;
6456 }
6457
6458 if same_text_selected {
6459 if selected_text.is_none() {
6460 selected_text =
6461 Some(buffer.text_for_range(selection.range()).collect::<String>());
6462 }
6463
6464 if let Some(next_selection) = selections_iter.peek() {
6465 if next_selection.range().len() == selection.range().len() {
6466 let next_selected_text = buffer
6467 .text_for_range(next_selection.range())
6468 .collect::<String>();
6469 if Some(next_selected_text) != selected_text {
6470 same_text_selected = false;
6471 selected_text = None;
6472 }
6473 } else {
6474 same_text_selected = false;
6475 selected_text = None;
6476 }
6477 }
6478 }
6479 }
6480
6481 if only_carets {
6482 for selection in &mut selections {
6483 let word_range = movement::surrounding_word(
6484 &display_map,
6485 selection.start.to_display_point(&display_map),
6486 );
6487 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6488 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6489 selection.goal = SelectionGoal::None;
6490 selection.reversed = false;
6491 }
6492 if selections.len() == 1 {
6493 let selection = selections
6494 .last()
6495 .expect("ensured that there's only one selection");
6496 let query = buffer
6497 .text_for_range(selection.start..selection.end)
6498 .collect::<String>();
6499 let is_empty = query.is_empty();
6500 let select_state = SelectNextState {
6501 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6502 wordwise: true,
6503 done: is_empty,
6504 };
6505 self.select_prev_state = Some(select_state);
6506 } else {
6507 self.select_prev_state = None;
6508 }
6509
6510 self.unfold_ranges(
6511 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6512 false,
6513 true,
6514 cx,
6515 );
6516 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6517 s.select(selections);
6518 });
6519 } else if let Some(selected_text) = selected_text {
6520 self.select_prev_state = Some(SelectNextState {
6521 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6522 wordwise: false,
6523 done: false,
6524 });
6525 self.select_previous(action, cx)?;
6526 }
6527 }
6528 Ok(())
6529 }
6530
6531 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6532 let text_layout_details = &self.text_layout_details(cx);
6533 self.transact(cx, |this, cx| {
6534 let mut selections = this.selections.all::<Point>(cx);
6535 let mut edits = Vec::new();
6536 let mut selection_edit_ranges = Vec::new();
6537 let mut last_toggled_row = None;
6538 let snapshot = this.buffer.read(cx).read(cx);
6539 let empty_str: Arc<str> = "".into();
6540 let mut suffixes_inserted = Vec::new();
6541
6542 fn comment_prefix_range(
6543 snapshot: &MultiBufferSnapshot,
6544 row: u32,
6545 comment_prefix: &str,
6546 comment_prefix_whitespace: &str,
6547 ) -> Range<Point> {
6548 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6549
6550 let mut line_bytes = snapshot
6551 .bytes_in_range(start..snapshot.max_point())
6552 .flatten()
6553 .copied();
6554
6555 // If this line currently begins with the line comment prefix, then record
6556 // the range containing the prefix.
6557 if line_bytes
6558 .by_ref()
6559 .take(comment_prefix.len())
6560 .eq(comment_prefix.bytes())
6561 {
6562 // Include any whitespace that matches the comment prefix.
6563 let matching_whitespace_len = line_bytes
6564 .zip(comment_prefix_whitespace.bytes())
6565 .take_while(|(a, b)| a == b)
6566 .count() as u32;
6567 let end = Point::new(
6568 start.row,
6569 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6570 );
6571 start..end
6572 } else {
6573 start..start
6574 }
6575 }
6576
6577 fn comment_suffix_range(
6578 snapshot: &MultiBufferSnapshot,
6579 row: u32,
6580 comment_suffix: &str,
6581 comment_suffix_has_leading_space: bool,
6582 ) -> Range<Point> {
6583 let end = Point::new(row, snapshot.line_len(row));
6584 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6585
6586 let mut line_end_bytes = snapshot
6587 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6588 .flatten()
6589 .copied();
6590
6591 let leading_space_len = if suffix_start_column > 0
6592 && line_end_bytes.next() == Some(b' ')
6593 && comment_suffix_has_leading_space
6594 {
6595 1
6596 } else {
6597 0
6598 };
6599
6600 // If this line currently begins with the line comment prefix, then record
6601 // the range containing the prefix.
6602 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6603 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6604 start..end
6605 } else {
6606 end..end
6607 }
6608 }
6609
6610 // TODO: Handle selections that cross excerpts
6611 for selection in &mut selections {
6612 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6613 let language = if let Some(language) =
6614 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6615 {
6616 language
6617 } else {
6618 continue;
6619 };
6620
6621 selection_edit_ranges.clear();
6622
6623 // If multiple selections contain a given row, avoid processing that
6624 // row more than once.
6625 let mut start_row = selection.start.row;
6626 if last_toggled_row == Some(start_row) {
6627 start_row += 1;
6628 }
6629 let end_row =
6630 if selection.end.row > selection.start.row && selection.end.column == 0 {
6631 selection.end.row - 1
6632 } else {
6633 selection.end.row
6634 };
6635 last_toggled_row = Some(end_row);
6636
6637 if start_row > end_row {
6638 continue;
6639 }
6640
6641 // If the language has line comments, toggle those.
6642 if let Some(full_comment_prefix) = language.line_comment_prefix() {
6643 // Split the comment prefix's trailing whitespace into a separate string,
6644 // as that portion won't be used for detecting if a line is a comment.
6645 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6646 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6647 let mut all_selection_lines_are_comments = true;
6648
6649 for row in start_row..=end_row {
6650 if snapshot.is_line_blank(row) && start_row < end_row {
6651 continue;
6652 }
6653
6654 let prefix_range = comment_prefix_range(
6655 snapshot.deref(),
6656 row,
6657 comment_prefix,
6658 comment_prefix_whitespace,
6659 );
6660 if prefix_range.is_empty() {
6661 all_selection_lines_are_comments = false;
6662 }
6663 selection_edit_ranges.push(prefix_range);
6664 }
6665
6666 if all_selection_lines_are_comments {
6667 edits.extend(
6668 selection_edit_ranges
6669 .iter()
6670 .cloned()
6671 .map(|range| (range, empty_str.clone())),
6672 );
6673 } else {
6674 let min_column = selection_edit_ranges
6675 .iter()
6676 .map(|r| r.start.column)
6677 .min()
6678 .unwrap_or(0);
6679 edits.extend(selection_edit_ranges.iter().map(|range| {
6680 let position = Point::new(range.start.row, min_column);
6681 (position..position, full_comment_prefix.clone())
6682 }));
6683 }
6684 } else if let Some((full_comment_prefix, comment_suffix)) =
6685 language.block_comment_delimiters()
6686 {
6687 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6688 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6689 let prefix_range = comment_prefix_range(
6690 snapshot.deref(),
6691 start_row,
6692 comment_prefix,
6693 comment_prefix_whitespace,
6694 );
6695 let suffix_range = comment_suffix_range(
6696 snapshot.deref(),
6697 end_row,
6698 comment_suffix.trim_start_matches(' '),
6699 comment_suffix.starts_with(' '),
6700 );
6701
6702 if prefix_range.is_empty() || suffix_range.is_empty() {
6703 edits.push((
6704 prefix_range.start..prefix_range.start,
6705 full_comment_prefix.clone(),
6706 ));
6707 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6708 suffixes_inserted.push((end_row, comment_suffix.len()));
6709 } else {
6710 edits.push((prefix_range, empty_str.clone()));
6711 edits.push((suffix_range, empty_str.clone()));
6712 }
6713 } else {
6714 continue;
6715 }
6716 }
6717
6718 drop(snapshot);
6719 this.buffer.update(cx, |buffer, cx| {
6720 buffer.edit(edits, None, cx);
6721 });
6722
6723 // Adjust selections so that they end before any comment suffixes that
6724 // were inserted.
6725 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6726 let mut selections = this.selections.all::<Point>(cx);
6727 let snapshot = this.buffer.read(cx).read(cx);
6728 for selection in &mut selections {
6729 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6730 match row.cmp(&selection.end.row) {
6731 Ordering::Less => {
6732 suffixes_inserted.next();
6733 continue;
6734 }
6735 Ordering::Greater => break,
6736 Ordering::Equal => {
6737 if selection.end.column == snapshot.line_len(row) {
6738 if selection.is_empty() {
6739 selection.start.column -= suffix_len as u32;
6740 }
6741 selection.end.column -= suffix_len as u32;
6742 }
6743 break;
6744 }
6745 }
6746 }
6747 }
6748
6749 drop(snapshot);
6750 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6751
6752 let selections = this.selections.all::<Point>(cx);
6753 let selections_on_single_row = selections.windows(2).all(|selections| {
6754 selections[0].start.row == selections[1].start.row
6755 && selections[0].end.row == selections[1].end.row
6756 && selections[0].start.row == selections[0].end.row
6757 });
6758 let selections_selecting = selections
6759 .iter()
6760 .any(|selection| selection.start != selection.end);
6761 let advance_downwards = action.advance_downwards
6762 && selections_on_single_row
6763 && !selections_selecting
6764 && this.mode != EditorMode::SingleLine;
6765
6766 if advance_downwards {
6767 let snapshot = this.buffer.read(cx).snapshot(cx);
6768
6769 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6770 s.move_cursors_with(|display_snapshot, display_point, _| {
6771 let mut point = display_point.to_point(display_snapshot);
6772 point.row += 1;
6773 point = snapshot.clip_point(point, Bias::Left);
6774 let display_point = point.to_display_point(display_snapshot);
6775 let goal = SelectionGoal::HorizontalPosition(
6776 display_snapshot
6777 .x_for_display_point(display_point, &text_layout_details)
6778 .into(),
6779 );
6780 (display_point, goal)
6781 })
6782 });
6783 }
6784 });
6785 }
6786
6787 pub fn select_larger_syntax_node(
6788 &mut self,
6789 _: &SelectLargerSyntaxNode,
6790 cx: &mut ViewContext<Self>,
6791 ) {
6792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6793 let buffer = self.buffer.read(cx).snapshot(cx);
6794 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6795
6796 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6797 let mut selected_larger_node = false;
6798 let new_selections = old_selections
6799 .iter()
6800 .map(|selection| {
6801 let old_range = selection.start..selection.end;
6802 let mut new_range = old_range.clone();
6803 while let Some(containing_range) =
6804 buffer.range_for_syntax_ancestor(new_range.clone())
6805 {
6806 new_range = containing_range;
6807 if !display_map.intersects_fold(new_range.start)
6808 && !display_map.intersects_fold(new_range.end)
6809 {
6810 break;
6811 }
6812 }
6813
6814 selected_larger_node |= new_range != old_range;
6815 Selection {
6816 id: selection.id,
6817 start: new_range.start,
6818 end: new_range.end,
6819 goal: SelectionGoal::None,
6820 reversed: selection.reversed,
6821 }
6822 })
6823 .collect::<Vec<_>>();
6824
6825 if selected_larger_node {
6826 stack.push(old_selections);
6827 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6828 s.select(new_selections);
6829 });
6830 }
6831 self.select_larger_syntax_node_stack = stack;
6832 }
6833
6834 pub fn select_smaller_syntax_node(
6835 &mut self,
6836 _: &SelectSmallerSyntaxNode,
6837 cx: &mut ViewContext<Self>,
6838 ) {
6839 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6840 if let Some(selections) = stack.pop() {
6841 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6842 s.select(selections.to_vec());
6843 });
6844 }
6845 self.select_larger_syntax_node_stack = stack;
6846 }
6847
6848 pub fn move_to_enclosing_bracket(
6849 &mut self,
6850 _: &MoveToEnclosingBracket,
6851 cx: &mut ViewContext<Self>,
6852 ) {
6853 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6854 s.move_offsets_with(|snapshot, selection| {
6855 let Some(enclosing_bracket_ranges) =
6856 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6857 else {
6858 return;
6859 };
6860
6861 let mut best_length = usize::MAX;
6862 let mut best_inside = false;
6863 let mut best_in_bracket_range = false;
6864 let mut best_destination = None;
6865 for (open, close) in enclosing_bracket_ranges {
6866 let close = close.to_inclusive();
6867 let length = close.end() - open.start;
6868 let inside = selection.start >= open.end && selection.end <= *close.start();
6869 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6870 || close.contains(&selection.head());
6871
6872 // If best is next to a bracket and current isn't, skip
6873 if !in_bracket_range && best_in_bracket_range {
6874 continue;
6875 }
6876
6877 // Prefer smaller lengths unless best is inside and current isn't
6878 if length > best_length && (best_inside || !inside) {
6879 continue;
6880 }
6881
6882 best_length = length;
6883 best_inside = inside;
6884 best_in_bracket_range = in_bracket_range;
6885 best_destination = Some(
6886 if close.contains(&selection.start) && close.contains(&selection.end) {
6887 if inside {
6888 open.end
6889 } else {
6890 open.start
6891 }
6892 } else {
6893 if inside {
6894 *close.start()
6895 } else {
6896 *close.end()
6897 }
6898 },
6899 );
6900 }
6901
6902 if let Some(destination) = best_destination {
6903 selection.collapse_to(destination, SelectionGoal::None);
6904 }
6905 })
6906 });
6907 }
6908
6909 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6910 self.end_selection(cx);
6911 self.selection_history.mode = SelectionHistoryMode::Undoing;
6912 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6913 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6914 self.select_next_state = entry.select_next_state;
6915 self.select_prev_state = entry.select_prev_state;
6916 self.add_selections_state = entry.add_selections_state;
6917 self.request_autoscroll(Autoscroll::newest(), cx);
6918 }
6919 self.selection_history.mode = SelectionHistoryMode::Normal;
6920 }
6921
6922 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
6923 self.end_selection(cx);
6924 self.selection_history.mode = SelectionHistoryMode::Redoing;
6925 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
6926 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6927 self.select_next_state = entry.select_next_state;
6928 self.select_prev_state = entry.select_prev_state;
6929 self.add_selections_state = entry.add_selections_state;
6930 self.request_autoscroll(Autoscroll::newest(), cx);
6931 }
6932 self.selection_history.mode = SelectionHistoryMode::Normal;
6933 }
6934
6935 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
6936 self.go_to_diagnostic_impl(Direction::Next, cx)
6937 }
6938
6939 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
6940 self.go_to_diagnostic_impl(Direction::Prev, cx)
6941 }
6942
6943 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
6944 let buffer = self.buffer.read(cx).snapshot(cx);
6945 let selection = self.selections.newest::<usize>(cx);
6946
6947 // If there is an active Diagnostic Popover jump to its diagnostic instead.
6948 if direction == Direction::Next {
6949 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
6950 let (group_id, jump_to) = popover.activation_info();
6951 if self.activate_diagnostics(group_id, cx) {
6952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6953 let mut new_selection = s.newest_anchor().clone();
6954 new_selection.collapse_to(jump_to, SelectionGoal::None);
6955 s.select_anchors(vec![new_selection.clone()]);
6956 });
6957 }
6958 return;
6959 }
6960 }
6961
6962 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
6963 active_diagnostics
6964 .primary_range
6965 .to_offset(&buffer)
6966 .to_inclusive()
6967 });
6968 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
6969 if active_primary_range.contains(&selection.head()) {
6970 *active_primary_range.end()
6971 } else {
6972 selection.head()
6973 }
6974 } else {
6975 selection.head()
6976 };
6977
6978 loop {
6979 let mut diagnostics = if direction == Direction::Prev {
6980 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
6981 } else {
6982 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
6983 };
6984 let group = diagnostics.find_map(|entry| {
6985 if entry.diagnostic.is_primary
6986 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
6987 && !entry.range.is_empty()
6988 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
6989 && !entry.range.contains(&search_start)
6990 {
6991 Some((entry.range, entry.diagnostic.group_id))
6992 } else {
6993 None
6994 }
6995 });
6996
6997 if let Some((primary_range, group_id)) = group {
6998 if self.activate_diagnostics(group_id, cx) {
6999 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7000 s.select(vec![Selection {
7001 id: selection.id,
7002 start: primary_range.start,
7003 end: primary_range.start,
7004 reversed: false,
7005 goal: SelectionGoal::None,
7006 }]);
7007 });
7008 }
7009 break;
7010 } else {
7011 // Cycle around to the start of the buffer, potentially moving back to the start of
7012 // the currently active diagnostic.
7013 active_primary_range.take();
7014 if direction == Direction::Prev {
7015 if search_start == buffer.len() {
7016 break;
7017 } else {
7018 search_start = buffer.len();
7019 }
7020 } else if search_start == 0 {
7021 break;
7022 } else {
7023 search_start = 0;
7024 }
7025 }
7026 }
7027 }
7028
7029 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7030 let snapshot = self
7031 .display_map
7032 .update(cx, |display_map, cx| display_map.snapshot(cx));
7033 let selection = self.selections.newest::<Point>(cx);
7034
7035 if !self.seek_in_direction(
7036 &snapshot,
7037 selection.head(),
7038 false,
7039 snapshot
7040 .buffer_snapshot
7041 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7042 cx,
7043 ) {
7044 let wrapped_point = Point::zero();
7045 self.seek_in_direction(
7046 &snapshot,
7047 wrapped_point,
7048 true,
7049 snapshot
7050 .buffer_snapshot
7051 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7052 cx,
7053 );
7054 }
7055 }
7056
7057 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7058 let snapshot = self
7059 .display_map
7060 .update(cx, |display_map, cx| display_map.snapshot(cx));
7061 let selection = self.selections.newest::<Point>(cx);
7062
7063 if !self.seek_in_direction(
7064 &snapshot,
7065 selection.head(),
7066 false,
7067 snapshot
7068 .buffer_snapshot
7069 .git_diff_hunks_in_range_rev(0..selection.head().row),
7070 cx,
7071 ) {
7072 let wrapped_point = snapshot.buffer_snapshot.max_point();
7073 self.seek_in_direction(
7074 &snapshot,
7075 wrapped_point,
7076 true,
7077 snapshot
7078 .buffer_snapshot
7079 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7080 cx,
7081 );
7082 }
7083 }
7084
7085 fn seek_in_direction(
7086 &mut self,
7087 snapshot: &DisplaySnapshot,
7088 initial_point: Point,
7089 is_wrapped: bool,
7090 hunks: impl Iterator<Item = DiffHunk<u32>>,
7091 cx: &mut ViewContext<Editor>,
7092 ) -> bool {
7093 let display_point = initial_point.to_display_point(snapshot);
7094 let mut hunks = hunks
7095 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7096 .filter(|hunk| {
7097 if is_wrapped {
7098 true
7099 } else {
7100 !hunk.contains_display_row(display_point.row())
7101 }
7102 })
7103 .dedup();
7104
7105 if let Some(hunk) = hunks.next() {
7106 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7107 let row = hunk.start_display_row();
7108 let point = DisplayPoint::new(row, 0);
7109 s.select_display_ranges([point..point]);
7110 });
7111
7112 true
7113 } else {
7114 false
7115 }
7116 }
7117
7118 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7119 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7120 }
7121
7122 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7123 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7124 }
7125
7126 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7127 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7128 }
7129
7130 pub fn go_to_type_definition_split(
7131 &mut self,
7132 _: &GoToTypeDefinitionSplit,
7133 cx: &mut ViewContext<Self>,
7134 ) {
7135 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7136 }
7137
7138 fn go_to_definition_of_kind(
7139 &mut self,
7140 kind: GotoDefinitionKind,
7141 split: bool,
7142 cx: &mut ViewContext<Self>,
7143 ) {
7144 let Some(workspace) = self.workspace() else {
7145 return;
7146 };
7147 let buffer = self.buffer.read(cx);
7148 let head = self.selections.newest::<usize>(cx).head();
7149 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7150 text_anchor
7151 } else {
7152 return;
7153 };
7154
7155 let project = workspace.read(cx).project().clone();
7156 let definitions = project.update(cx, |project, cx| match kind {
7157 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7158 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7159 });
7160
7161 cx.spawn(|editor, mut cx| async move {
7162 let definitions = definitions.await?;
7163 editor.update(&mut cx, |editor, cx| {
7164 editor.navigate_to_definitions(
7165 definitions
7166 .into_iter()
7167 .map(GoToDefinitionLink::Text)
7168 .collect(),
7169 split,
7170 cx,
7171 );
7172 })?;
7173 Ok::<(), anyhow::Error>(())
7174 })
7175 .detach_and_log_err(cx);
7176 }
7177
7178 pub fn navigate_to_definitions(
7179 &mut self,
7180 mut definitions: Vec<GoToDefinitionLink>,
7181 split: bool,
7182 cx: &mut ViewContext<Editor>,
7183 ) {
7184 let Some(workspace) = self.workspace() else {
7185 return;
7186 };
7187 let pane = workspace.read(cx).active_pane().clone();
7188 // If there is one definition, just open it directly
7189 if definitions.len() == 1 {
7190 let definition = definitions.pop().unwrap();
7191 let target_task = match definition {
7192 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7193 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7194 self.compute_target_location(lsp_location, server_id, cx)
7195 }
7196 };
7197 cx.spawn(|editor, mut cx| async move {
7198 let target = target_task.await.context("target resolution task")?;
7199 if let Some(target) = target {
7200 editor.update(&mut cx, |editor, cx| {
7201 let range = target.range.to_offset(target.buffer.read(cx));
7202 let range = editor.range_for_match(&range);
7203 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7204 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.select_ranges([range]);
7206 });
7207 } else {
7208 cx.window_context().defer(move |cx| {
7209 let target_editor: View<Self> =
7210 workspace.update(cx, |workspace, cx| {
7211 if split {
7212 workspace.split_project_item(target.buffer.clone(), cx)
7213 } else {
7214 workspace.open_project_item(target.buffer.clone(), cx)
7215 }
7216 });
7217 target_editor.update(cx, |target_editor, cx| {
7218 // When selecting a definition in a different buffer, disable the nav history
7219 // to avoid creating a history entry at the previous cursor location.
7220 pane.update(cx, |pane, _| pane.disable_history());
7221 target_editor.change_selections(
7222 Some(Autoscroll::fit()),
7223 cx,
7224 |s| {
7225 s.select_ranges([range]);
7226 },
7227 );
7228 pane.update(cx, |pane, _| pane.enable_history());
7229 });
7230 });
7231 }
7232 })
7233 } else {
7234 Ok(())
7235 }
7236 })
7237 .detach_and_log_err(cx);
7238 } else if !definitions.is_empty() {
7239 let replica_id = self.replica_id(cx);
7240 cx.spawn(|editor, mut cx| async move {
7241 let (title, location_tasks) = editor
7242 .update(&mut cx, |editor, cx| {
7243 let title = definitions
7244 .iter()
7245 .find_map(|definition| match definition {
7246 GoToDefinitionLink::Text(link) => {
7247 link.origin.as_ref().map(|origin| {
7248 let buffer = origin.buffer.read(cx);
7249 format!(
7250 "Definitions for {}",
7251 buffer
7252 .text_for_range(origin.range.clone())
7253 .collect::<String>()
7254 )
7255 })
7256 }
7257 GoToDefinitionLink::InlayHint(_, _) => None,
7258 })
7259 .unwrap_or("Definitions".to_string());
7260 let location_tasks = definitions
7261 .into_iter()
7262 .map(|definition| match definition {
7263 GoToDefinitionLink::Text(link) => {
7264 Task::Ready(Some(Ok(Some(link.target))))
7265 }
7266 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7267 editor.compute_target_location(lsp_location, server_id, cx)
7268 }
7269 })
7270 .collect::<Vec<_>>();
7271 (title, location_tasks)
7272 })
7273 .context("location tasks preparation")?;
7274
7275 let locations = futures::future::join_all(location_tasks)
7276 .await
7277 .into_iter()
7278 .filter_map(|location| location.transpose())
7279 .collect::<Result<_>>()
7280 .context("location tasks")?;
7281 workspace
7282 .update(&mut cx, |workspace, cx| {
7283 Self::open_locations_in_multibuffer(
7284 workspace, locations, replica_id, title, split, cx,
7285 )
7286 })
7287 .ok();
7288
7289 anyhow::Ok(())
7290 })
7291 .detach_and_log_err(cx);
7292 }
7293 }
7294
7295 fn compute_target_location(
7296 &self,
7297 lsp_location: lsp::Location,
7298 server_id: LanguageServerId,
7299 cx: &mut ViewContext<Editor>,
7300 ) -> Task<anyhow::Result<Option<Location>>> {
7301 let Some(project) = self.project.clone() else {
7302 return Task::Ready(Some(Ok(None)));
7303 };
7304
7305 cx.spawn(move |editor, mut cx| async move {
7306 let location_task = editor.update(&mut cx, |editor, cx| {
7307 project.update(cx, |project, cx| {
7308 let language_server_name =
7309 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7310 project
7311 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7312 .map(|(_, lsp_adapter)| {
7313 LanguageServerName(Arc::from(lsp_adapter.name()))
7314 })
7315 });
7316 language_server_name.map(|language_server_name| {
7317 project.open_local_buffer_via_lsp(
7318 lsp_location.uri.clone(),
7319 server_id,
7320 language_server_name,
7321 cx,
7322 )
7323 })
7324 })
7325 })?;
7326 let location = match location_task {
7327 Some(task) => Some({
7328 let target_buffer_handle = task.await.context("open local buffer")?;
7329 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7330 let target_start = target_buffer
7331 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7332 let target_end = target_buffer
7333 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7334 target_buffer.anchor_after(target_start)
7335 ..target_buffer.anchor_before(target_end)
7336 })?;
7337 Location {
7338 buffer: target_buffer_handle,
7339 range,
7340 }
7341 }),
7342 None => None,
7343 };
7344 Ok(location)
7345 })
7346 }
7347
7348 pub fn find_all_references(
7349 &mut self,
7350 _: &FindAllReferences,
7351 cx: &mut ViewContext<Self>,
7352 ) -> Option<Task<Result<()>>> {
7353 let buffer = self.buffer.read(cx);
7354 let head = self.selections.newest::<usize>(cx).head();
7355 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7356 let replica_id = self.replica_id(cx);
7357
7358 let workspace = self.workspace()?;
7359 let project = workspace.read(cx).project().clone();
7360 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7361 Some(cx.spawn(|_, mut cx| async move {
7362 let locations = references.await?;
7363 if locations.is_empty() {
7364 return Ok(());
7365 }
7366
7367 workspace.update(&mut cx, |workspace, cx| {
7368 let title = locations
7369 .first()
7370 .as_ref()
7371 .map(|location| {
7372 let buffer = location.buffer.read(cx);
7373 format!(
7374 "References to `{}`",
7375 buffer
7376 .text_for_range(location.range.clone())
7377 .collect::<String>()
7378 )
7379 })
7380 .unwrap();
7381 Self::open_locations_in_multibuffer(
7382 workspace, locations, replica_id, title, false, cx,
7383 );
7384 })?;
7385
7386 Ok(())
7387 }))
7388 }
7389
7390 /// Opens a multibuffer with the given project locations in it
7391 pub fn open_locations_in_multibuffer(
7392 workspace: &mut Workspace,
7393 mut locations: Vec<Location>,
7394 replica_id: ReplicaId,
7395 title: String,
7396 split: bool,
7397 cx: &mut ViewContext<Workspace>,
7398 ) {
7399 // If there are multiple definitions, open them in a multibuffer
7400 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7401 let mut locations = locations.into_iter().peekable();
7402 let mut ranges_to_highlight = Vec::new();
7403 let capability = workspace.project().read(cx).capability();
7404
7405 let excerpt_buffer = cx.new_model(|cx| {
7406 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7407 while let Some(location) = locations.next() {
7408 let buffer = location.buffer.read(cx);
7409 let mut ranges_for_buffer = Vec::new();
7410 let range = location.range.to_offset(buffer);
7411 ranges_for_buffer.push(range.clone());
7412
7413 while let Some(next_location) = locations.peek() {
7414 if next_location.buffer == location.buffer {
7415 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7416 locations.next();
7417 } else {
7418 break;
7419 }
7420 }
7421
7422 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7423 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7424 location.buffer.clone(),
7425 ranges_for_buffer,
7426 1,
7427 cx,
7428 ))
7429 }
7430
7431 multibuffer.with_title(title)
7432 });
7433
7434 let editor = cx.new_view(|cx| {
7435 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7436 });
7437 editor.update(cx, |editor, cx| {
7438 editor.highlight_background::<Self>(
7439 ranges_to_highlight,
7440 |theme| theme.editor_highlighted_line_background,
7441 cx,
7442 );
7443 });
7444 if split {
7445 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7446 } else {
7447 workspace.add_item(Box::new(editor), cx);
7448 }
7449 }
7450
7451 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7452 use language::ToOffset as _;
7453
7454 let project = self.project.clone()?;
7455 let selection = self.selections.newest_anchor().clone();
7456 let (cursor_buffer, cursor_buffer_position) = self
7457 .buffer
7458 .read(cx)
7459 .text_anchor_for_position(selection.head(), cx)?;
7460 let (tail_buffer, _) = self
7461 .buffer
7462 .read(cx)
7463 .text_anchor_for_position(selection.tail(), cx)?;
7464 if tail_buffer != cursor_buffer {
7465 return None;
7466 }
7467
7468 let snapshot = cursor_buffer.read(cx).snapshot();
7469 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7470 let prepare_rename = project.update(cx, |project, cx| {
7471 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7472 });
7473
7474 Some(cx.spawn(|this, mut cx| async move {
7475 let rename_range = if let Some(range) = prepare_rename.await? {
7476 Some(range)
7477 } else {
7478 this.update(&mut cx, |this, cx| {
7479 let buffer = this.buffer.read(cx).snapshot(cx);
7480 let mut buffer_highlights = this
7481 .document_highlights_for_position(selection.head(), &buffer)
7482 .filter(|highlight| {
7483 highlight.start.excerpt_id == selection.head().excerpt_id
7484 && highlight.end.excerpt_id == selection.head().excerpt_id
7485 });
7486 buffer_highlights
7487 .next()
7488 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7489 })?
7490 };
7491 if let Some(rename_range) = rename_range {
7492 let rename_buffer_range = rename_range.to_offset(&snapshot);
7493 let cursor_offset_in_rename_range =
7494 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7495
7496 this.update(&mut cx, |this, cx| {
7497 this.take_rename(false, cx);
7498 let buffer = this.buffer.read(cx).read(cx);
7499 let cursor_offset = selection.head().to_offset(&buffer);
7500 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7501 let rename_end = rename_start + rename_buffer_range.len();
7502 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7503 let mut old_highlight_id = None;
7504 let old_name: Arc<str> = buffer
7505 .chunks(rename_start..rename_end, true)
7506 .map(|chunk| {
7507 if old_highlight_id.is_none() {
7508 old_highlight_id = chunk.syntax_highlight_id;
7509 }
7510 chunk.text
7511 })
7512 .collect::<String>()
7513 .into();
7514
7515 drop(buffer);
7516
7517 // Position the selection in the rename editor so that it matches the current selection.
7518 this.show_local_selections = false;
7519 let rename_editor = cx.new_view(|cx| {
7520 let mut editor = Editor::single_line(cx);
7521 editor.buffer.update(cx, |buffer, cx| {
7522 buffer.edit([(0..0, old_name.clone())], None, cx)
7523 });
7524 editor.select_all(&SelectAll, cx);
7525 editor
7526 });
7527
7528 let ranges = this
7529 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7530 .into_iter()
7531 .flat_map(|(_, ranges)| ranges.into_iter())
7532 .chain(
7533 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7534 .into_iter()
7535 .flat_map(|(_, ranges)| ranges.into_iter()),
7536 )
7537 .collect();
7538
7539 this.highlight_text::<Rename>(
7540 ranges,
7541 HighlightStyle {
7542 fade_out: Some(0.6),
7543 ..Default::default()
7544 },
7545 cx,
7546 );
7547 let rename_focus_handle = rename_editor.focus_handle(cx);
7548 cx.focus(&rename_focus_handle);
7549 let block_id = this.insert_blocks(
7550 [BlockProperties {
7551 style: BlockStyle::Flex,
7552 position: range.start.clone(),
7553 height: 1,
7554 render: Arc::new({
7555 let rename_editor = rename_editor.clone();
7556 move |cx: &mut BlockContext| {
7557 let mut text_style = cx.editor_style.text.clone();
7558 if let Some(highlight_style) = old_highlight_id
7559 .and_then(|h| h.style(&cx.editor_style.syntax))
7560 {
7561 text_style = text_style.highlight(highlight_style);
7562 }
7563 div()
7564 .pl(cx.anchor_x)
7565 .child(EditorElement::new(
7566 &rename_editor,
7567 EditorStyle {
7568 background: cx.theme().system().transparent,
7569 local_player: cx.editor_style.local_player,
7570 text: text_style,
7571 scrollbar_width: cx.editor_style.scrollbar_width,
7572 syntax: cx.editor_style.syntax.clone(),
7573 status: cx.editor_style.status.clone(),
7574 inlays_style: HighlightStyle {
7575 color: Some(cx.theme().status().hint),
7576 font_weight: Some(FontWeight::BOLD),
7577 ..HighlightStyle::default()
7578 },
7579 suggestions_style: HighlightStyle {
7580 color: Some(cx.theme().status().predictive),
7581 ..HighlightStyle::default()
7582 },
7583 },
7584 ))
7585 .into_any_element()
7586 }
7587 }),
7588 disposition: BlockDisposition::Below,
7589 }],
7590 Some(Autoscroll::fit()),
7591 cx,
7592 )[0];
7593 this.pending_rename = Some(RenameState {
7594 range,
7595 old_name,
7596 editor: rename_editor,
7597 block_id,
7598 });
7599 })?;
7600 }
7601
7602 Ok(())
7603 }))
7604 }
7605
7606 pub fn confirm_rename(
7607 &mut self,
7608 _: &ConfirmRename,
7609 cx: &mut ViewContext<Self>,
7610 ) -> Option<Task<Result<()>>> {
7611 let rename = self.take_rename(false, cx)?;
7612 let workspace = self.workspace()?;
7613 let (start_buffer, start) = self
7614 .buffer
7615 .read(cx)
7616 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7617 let (end_buffer, end) = self
7618 .buffer
7619 .read(cx)
7620 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7621 if start_buffer != end_buffer {
7622 return None;
7623 }
7624
7625 let buffer = start_buffer;
7626 let range = start..end;
7627 let old_name = rename.old_name;
7628 let new_name = rename.editor.read(cx).text(cx);
7629
7630 let rename = workspace
7631 .read(cx)
7632 .project()
7633 .clone()
7634 .update(cx, |project, cx| {
7635 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7636 });
7637 let workspace = workspace.downgrade();
7638
7639 Some(cx.spawn(|editor, mut cx| async move {
7640 let project_transaction = rename.await?;
7641 Self::open_project_transaction(
7642 &editor,
7643 workspace,
7644 project_transaction,
7645 format!("Rename: {} → {}", old_name, new_name),
7646 cx.clone(),
7647 )
7648 .await?;
7649
7650 editor.update(&mut cx, |editor, cx| {
7651 editor.refresh_document_highlights(cx);
7652 })?;
7653 Ok(())
7654 }))
7655 }
7656
7657 fn take_rename(
7658 &mut self,
7659 moving_cursor: bool,
7660 cx: &mut ViewContext<Self>,
7661 ) -> Option<RenameState> {
7662 let rename = self.pending_rename.take()?;
7663 if rename.editor.focus_handle(cx).is_focused(cx) {
7664 cx.focus(&self.focus_handle);
7665 }
7666
7667 self.remove_blocks(
7668 [rename.block_id].into_iter().collect(),
7669 Some(Autoscroll::fit()),
7670 cx,
7671 );
7672 self.clear_highlights::<Rename>(cx);
7673 self.show_local_selections = true;
7674
7675 if moving_cursor {
7676 let rename_editor = rename.editor.read(cx);
7677 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7678
7679 // Update the selection to match the position of the selection inside
7680 // the rename editor.
7681 let snapshot = self.buffer.read(cx).read(cx);
7682 let rename_range = rename.range.to_offset(&snapshot);
7683 let cursor_in_editor = snapshot
7684 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7685 .min(rename_range.end);
7686 drop(snapshot);
7687
7688 self.change_selections(None, cx, |s| {
7689 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7690 });
7691 } else {
7692 self.refresh_document_highlights(cx);
7693 }
7694
7695 Some(rename)
7696 }
7697
7698 #[cfg(any(test, feature = "test-support"))]
7699 pub fn pending_rename(&self) -> Option<&RenameState> {
7700 self.pending_rename.as_ref()
7701 }
7702
7703 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7704 let project = match &self.project {
7705 Some(project) => project.clone(),
7706 None => return None,
7707 };
7708
7709 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7710 }
7711
7712 fn perform_format(
7713 &mut self,
7714 project: Model<Project>,
7715 trigger: FormatTrigger,
7716 cx: &mut ViewContext<Self>,
7717 ) -> Task<Result<()>> {
7718 let buffer = self.buffer().clone();
7719 let buffers = buffer.read(cx).all_buffers();
7720
7721 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7722 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7723
7724 cx.spawn(|_, mut cx| async move {
7725 let transaction = futures::select_biased! {
7726 _ = timeout => {
7727 log::warn!("timed out waiting for formatting");
7728 None
7729 }
7730 transaction = format.log_err().fuse() => transaction,
7731 };
7732
7733 buffer
7734 .update(&mut cx, |buffer, cx| {
7735 if let Some(transaction) = transaction {
7736 if !buffer.is_singleton() {
7737 buffer.push_transaction(&transaction.0, cx);
7738 }
7739 }
7740
7741 cx.notify();
7742 })
7743 .ok();
7744
7745 Ok(())
7746 })
7747 }
7748
7749 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7750 if let Some(project) = self.project.clone() {
7751 self.buffer.update(cx, |multi_buffer, cx| {
7752 project.update(cx, |project, cx| {
7753 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7754 });
7755 })
7756 }
7757 }
7758
7759 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7760 cx.show_character_palette();
7761 }
7762
7763 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7764 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7765 let buffer = self.buffer.read(cx).snapshot(cx);
7766 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7767 let is_valid = buffer
7768 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7769 .any(|entry| {
7770 entry.diagnostic.is_primary
7771 && !entry.range.is_empty()
7772 && entry.range.start == primary_range_start
7773 && entry.diagnostic.message == active_diagnostics.primary_message
7774 });
7775
7776 if is_valid != active_diagnostics.is_valid {
7777 active_diagnostics.is_valid = is_valid;
7778 let mut new_styles = HashMap::default();
7779 for (block_id, diagnostic) in &active_diagnostics.blocks {
7780 new_styles.insert(
7781 *block_id,
7782 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7783 );
7784 }
7785 self.display_map
7786 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7787 }
7788 }
7789 }
7790
7791 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7792 self.dismiss_diagnostics(cx);
7793 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7794 let buffer = self.buffer.read(cx).snapshot(cx);
7795
7796 let mut primary_range = None;
7797 let mut primary_message = None;
7798 let mut group_end = Point::zero();
7799 let diagnostic_group = buffer
7800 .diagnostic_group::<Point>(group_id)
7801 .map(|entry| {
7802 if entry.range.end > group_end {
7803 group_end = entry.range.end;
7804 }
7805 if entry.diagnostic.is_primary {
7806 primary_range = Some(entry.range.clone());
7807 primary_message = Some(entry.diagnostic.message.clone());
7808 }
7809 entry
7810 })
7811 .collect::<Vec<_>>();
7812 let primary_range = primary_range?;
7813 let primary_message = primary_message?;
7814 let primary_range =
7815 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7816
7817 let blocks = display_map
7818 .insert_blocks(
7819 diagnostic_group.iter().map(|entry| {
7820 let diagnostic = entry.diagnostic.clone();
7821 let message_height = diagnostic.message.lines().count() as u8;
7822 BlockProperties {
7823 style: BlockStyle::Fixed,
7824 position: buffer.anchor_after(entry.range.start),
7825 height: message_height,
7826 render: diagnostic_block_renderer(diagnostic, true),
7827 disposition: BlockDisposition::Below,
7828 }
7829 }),
7830 cx,
7831 )
7832 .into_iter()
7833 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7834 .collect();
7835
7836 Some(ActiveDiagnosticGroup {
7837 primary_range,
7838 primary_message,
7839 blocks,
7840 is_valid: true,
7841 })
7842 });
7843 self.active_diagnostics.is_some()
7844 }
7845
7846 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7847 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7848 self.display_map.update(cx, |display_map, cx| {
7849 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7850 });
7851 cx.notify();
7852 }
7853 }
7854
7855 pub fn set_selections_from_remote(
7856 &mut self,
7857 selections: Vec<Selection<Anchor>>,
7858 pending_selection: Option<Selection<Anchor>>,
7859 cx: &mut ViewContext<Self>,
7860 ) {
7861 let old_cursor_position = self.selections.newest_anchor().head();
7862 self.selections.change_with(cx, |s| {
7863 s.select_anchors(selections);
7864 if let Some(pending_selection) = pending_selection {
7865 s.set_pending(pending_selection, SelectMode::Character);
7866 } else {
7867 s.clear_pending();
7868 }
7869 });
7870 self.selections_did_change(false, &old_cursor_position, cx);
7871 }
7872
7873 fn push_to_selection_history(&mut self) {
7874 self.selection_history.push(SelectionHistoryEntry {
7875 selections: self.selections.disjoint_anchors(),
7876 select_next_state: self.select_next_state.clone(),
7877 select_prev_state: self.select_prev_state.clone(),
7878 add_selections_state: self.add_selections_state.clone(),
7879 });
7880 }
7881
7882 pub fn transact(
7883 &mut self,
7884 cx: &mut ViewContext<Self>,
7885 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7886 ) -> Option<TransactionId> {
7887 self.start_transaction_at(Instant::now(), cx);
7888 update(self, cx);
7889 self.end_transaction_at(Instant::now(), cx)
7890 }
7891
7892 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7893 self.end_selection(cx);
7894 if let Some(tx_id) = self
7895 .buffer
7896 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7897 {
7898 self.selection_history
7899 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7900 }
7901 }
7902
7903 fn end_transaction_at(
7904 &mut self,
7905 now: Instant,
7906 cx: &mut ViewContext<Self>,
7907 ) -> Option<TransactionId> {
7908 if let Some(tx_id) = self
7909 .buffer
7910 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7911 {
7912 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7913 *end_selections = Some(self.selections.disjoint_anchors());
7914 } else {
7915 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7916 }
7917
7918 cx.emit(EditorEvent::Edited);
7919 Some(tx_id)
7920 } else {
7921 None
7922 }
7923 }
7924
7925 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
7926 let mut fold_ranges = Vec::new();
7927
7928 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7929
7930 let selections = self.selections.all_adjusted(cx);
7931 for selection in selections {
7932 let range = selection.range().sorted();
7933 let buffer_start_row = range.start.row;
7934
7935 for row in (0..=range.end.row).rev() {
7936 let fold_range = display_map.foldable_range(row);
7937
7938 if let Some(fold_range) = fold_range {
7939 if fold_range.end.row >= buffer_start_row {
7940 fold_ranges.push(fold_range);
7941 if row <= range.start.row {
7942 break;
7943 }
7944 }
7945 }
7946 }
7947 }
7948
7949 self.fold_ranges(fold_ranges, true, cx);
7950 }
7951
7952 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
7953 let buffer_row = fold_at.buffer_row;
7954 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7955
7956 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
7957 let autoscroll = self
7958 .selections
7959 .all::<Point>(cx)
7960 .iter()
7961 .any(|selection| fold_range.overlaps(&selection.range()));
7962
7963 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
7964 }
7965 }
7966
7967 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
7968 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7969 let buffer = &display_map.buffer_snapshot;
7970 let selections = self.selections.all::<Point>(cx);
7971 let ranges = selections
7972 .iter()
7973 .map(|s| {
7974 let range = s.display_range(&display_map).sorted();
7975 let mut start = range.start.to_point(&display_map);
7976 let mut end = range.end.to_point(&display_map);
7977 start.column = 0;
7978 end.column = buffer.line_len(end.row);
7979 start..end
7980 })
7981 .collect::<Vec<_>>();
7982
7983 self.unfold_ranges(ranges, true, true, cx);
7984 }
7985
7986 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
7987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7988
7989 let intersection_range = Point::new(unfold_at.buffer_row, 0)
7990 ..Point::new(
7991 unfold_at.buffer_row,
7992 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
7993 );
7994
7995 let autoscroll = self
7996 .selections
7997 .all::<Point>(cx)
7998 .iter()
7999 .any(|selection| selection.range().overlaps(&intersection_range));
8000
8001 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8002 }
8003
8004 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8005 let selections = self.selections.all::<Point>(cx);
8006 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8007 let line_mode = self.selections.line_mode;
8008 let ranges = selections.into_iter().map(|s| {
8009 if line_mode {
8010 let start = Point::new(s.start.row, 0);
8011 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8012 start..end
8013 } else {
8014 s.start..s.end
8015 }
8016 });
8017 self.fold_ranges(ranges, true, cx);
8018 }
8019
8020 pub fn fold_ranges<T: ToOffset + Clone>(
8021 &mut self,
8022 ranges: impl IntoIterator<Item = Range<T>>,
8023 auto_scroll: bool,
8024 cx: &mut ViewContext<Self>,
8025 ) {
8026 let mut ranges = ranges.into_iter().peekable();
8027 if ranges.peek().is_some() {
8028 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8029
8030 if auto_scroll {
8031 self.request_autoscroll(Autoscroll::fit(), cx);
8032 }
8033
8034 cx.notify();
8035 }
8036 }
8037
8038 pub fn unfold_ranges<T: ToOffset + Clone>(
8039 &mut self,
8040 ranges: impl IntoIterator<Item = Range<T>>,
8041 inclusive: bool,
8042 auto_scroll: bool,
8043 cx: &mut ViewContext<Self>,
8044 ) {
8045 let mut ranges = ranges.into_iter().peekable();
8046 if ranges.peek().is_some() {
8047 self.display_map
8048 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8049 if auto_scroll {
8050 self.request_autoscroll(Autoscroll::fit(), cx);
8051 }
8052
8053 cx.notify();
8054 }
8055 }
8056
8057 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8058 if hovered != self.gutter_hovered {
8059 self.gutter_hovered = hovered;
8060 cx.notify();
8061 }
8062 }
8063
8064 pub fn insert_blocks(
8065 &mut self,
8066 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8067 autoscroll: Option<Autoscroll>,
8068 cx: &mut ViewContext<Self>,
8069 ) -> Vec<BlockId> {
8070 let blocks = self
8071 .display_map
8072 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8073 if let Some(autoscroll) = autoscroll {
8074 self.request_autoscroll(autoscroll, cx);
8075 }
8076 blocks
8077 }
8078
8079 pub fn replace_blocks(
8080 &mut self,
8081 blocks: HashMap<BlockId, RenderBlock>,
8082 autoscroll: Option<Autoscroll>,
8083 cx: &mut ViewContext<Self>,
8084 ) {
8085 self.display_map
8086 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8087 if let Some(autoscroll) = autoscroll {
8088 self.request_autoscroll(autoscroll, cx);
8089 }
8090 }
8091
8092 pub fn remove_blocks(
8093 &mut self,
8094 block_ids: HashSet<BlockId>,
8095 autoscroll: Option<Autoscroll>,
8096 cx: &mut ViewContext<Self>,
8097 ) {
8098 self.display_map.update(cx, |display_map, cx| {
8099 display_map.remove_blocks(block_ids, cx)
8100 });
8101 if let Some(autoscroll) = autoscroll {
8102 self.request_autoscroll(autoscroll, cx);
8103 }
8104 }
8105
8106 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8107 self.display_map
8108 .update(cx, |map, cx| map.snapshot(cx))
8109 .longest_row()
8110 }
8111
8112 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8113 self.display_map
8114 .update(cx, |map, cx| map.snapshot(cx))
8115 .max_point()
8116 }
8117
8118 pub fn text(&self, cx: &AppContext) -> String {
8119 self.buffer.read(cx).read(cx).text()
8120 }
8121
8122 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8123 let text = self.text(cx);
8124 let text = text.trim();
8125
8126 if text.is_empty() {
8127 return None;
8128 }
8129
8130 Some(text.to_string())
8131 }
8132
8133 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8134 self.transact(cx, |this, cx| {
8135 this.buffer
8136 .read(cx)
8137 .as_singleton()
8138 .expect("you can only call set_text on editors for singleton buffers")
8139 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8140 });
8141 }
8142
8143 pub fn display_text(&self, cx: &mut AppContext) -> String {
8144 self.display_map
8145 .update(cx, |map, cx| map.snapshot(cx))
8146 .text()
8147 }
8148
8149 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8150 let mut wrap_guides = smallvec::smallvec![];
8151
8152 if self.show_wrap_guides == Some(false) {
8153 return wrap_guides;
8154 }
8155
8156 let settings = self.buffer.read(cx).settings_at(0, cx);
8157 if settings.show_wrap_guides {
8158 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8159 wrap_guides.push((soft_wrap as usize, true));
8160 }
8161 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8162 }
8163
8164 wrap_guides
8165 }
8166
8167 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8168 let settings = self.buffer.read(cx).settings_at(0, cx);
8169 let mode = self
8170 .soft_wrap_mode_override
8171 .unwrap_or_else(|| settings.soft_wrap);
8172 match mode {
8173 language_settings::SoftWrap::None => SoftWrap::None,
8174 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8175 language_settings::SoftWrap::PreferredLineLength => {
8176 SoftWrap::Column(settings.preferred_line_length)
8177 }
8178 }
8179 }
8180
8181 pub fn set_soft_wrap_mode(
8182 &mut self,
8183 mode: language_settings::SoftWrap,
8184 cx: &mut ViewContext<Self>,
8185 ) {
8186 self.soft_wrap_mode_override = Some(mode);
8187 cx.notify();
8188 }
8189
8190 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8191 let rem_size = cx.rem_size();
8192 self.display_map.update(cx, |map, cx| {
8193 map.set_font(
8194 style.text.font(),
8195 style.text.font_size.to_pixels(rem_size),
8196 cx,
8197 )
8198 });
8199 self.style = Some(style);
8200 }
8201
8202 #[cfg(any(test, feature = "test-support"))]
8203 pub fn style(&self) -> Option<&EditorStyle> {
8204 self.style.as_ref()
8205 }
8206
8207 // Called by the element. This method is not designed to be called outside of the editor
8208 // element's layout code because it does not notify when rewrapping is computed synchronously.
8209 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8210 self.display_map
8211 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8212 }
8213
8214 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8215 if self.soft_wrap_mode_override.is_some() {
8216 self.soft_wrap_mode_override.take();
8217 } else {
8218 let soft_wrap = match self.soft_wrap_mode(cx) {
8219 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8220 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8221 };
8222 self.soft_wrap_mode_override = Some(soft_wrap);
8223 }
8224 cx.notify();
8225 }
8226
8227 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8228 self.show_gutter = show_gutter;
8229 cx.notify();
8230 }
8231
8232 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8233 self.show_wrap_guides = Some(show_gutter);
8234 cx.notify();
8235 }
8236
8237 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8238 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8239 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8240 cx.reveal_path(&file.abs_path(cx));
8241 }
8242 }
8243 }
8244
8245 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8246 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8247 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8248 if let Some(path) = file.abs_path(cx).to_str() {
8249 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8250 }
8251 }
8252 }
8253 }
8254
8255 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8256 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8257 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8258 if let Some(path) = file.path().to_str() {
8259 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8260 }
8261 }
8262 }
8263 }
8264
8265 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8266 self.highlighted_rows = rows;
8267 }
8268
8269 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8270 self.highlighted_rows.clone()
8271 }
8272
8273 pub fn highlight_background<T: 'static>(
8274 &mut self,
8275 ranges: Vec<Range<Anchor>>,
8276 color_fetcher: fn(&ThemeColors) -> Hsla,
8277 cx: &mut ViewContext<Self>,
8278 ) {
8279 self.background_highlights
8280 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8281 cx.notify();
8282 }
8283
8284 pub(crate) fn highlight_inlay_background<T: 'static>(
8285 &mut self,
8286 ranges: Vec<InlayHighlight>,
8287 color_fetcher: fn(&ThemeColors) -> Hsla,
8288 cx: &mut ViewContext<Self>,
8289 ) {
8290 // TODO: no actual highlights happen for inlays currently, find a way to do that
8291 self.inlay_background_highlights
8292 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8293 cx.notify();
8294 }
8295
8296 pub fn clear_background_highlights<T: 'static>(
8297 &mut self,
8298 cx: &mut ViewContext<Self>,
8299 ) -> Option<BackgroundHighlight> {
8300 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8301 let inlay_highlights = self
8302 .inlay_background_highlights
8303 .remove(&Some(TypeId::of::<T>()));
8304 if text_highlights.is_some() || inlay_highlights.is_some() {
8305 cx.notify();
8306 }
8307 text_highlights
8308 }
8309
8310 #[cfg(feature = "test-support")]
8311 pub fn all_text_background_highlights(
8312 &mut self,
8313 cx: &mut ViewContext<Self>,
8314 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8315 let snapshot = self.snapshot(cx);
8316 let buffer = &snapshot.buffer_snapshot;
8317 let start = buffer.anchor_before(0);
8318 let end = buffer.anchor_after(buffer.len());
8319 let theme = cx.theme().colors();
8320 self.background_highlights_in_range(start..end, &snapshot, theme)
8321 }
8322
8323 fn document_highlights_for_position<'a>(
8324 &'a self,
8325 position: Anchor,
8326 buffer: &'a MultiBufferSnapshot,
8327 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8328 let read_highlights = self
8329 .background_highlights
8330 .get(&TypeId::of::<DocumentHighlightRead>())
8331 .map(|h| &h.1);
8332 let write_highlights = self
8333 .background_highlights
8334 .get(&TypeId::of::<DocumentHighlightWrite>())
8335 .map(|h| &h.1);
8336 let left_position = position.bias_left(buffer);
8337 let right_position = position.bias_right(buffer);
8338 read_highlights
8339 .into_iter()
8340 .chain(write_highlights)
8341 .flat_map(move |ranges| {
8342 let start_ix = match ranges.binary_search_by(|probe| {
8343 let cmp = probe.end.cmp(&left_position, buffer);
8344 if cmp.is_ge() {
8345 Ordering::Greater
8346 } else {
8347 Ordering::Less
8348 }
8349 }) {
8350 Ok(i) | Err(i) => i,
8351 };
8352
8353 let right_position = right_position.clone();
8354 ranges[start_ix..]
8355 .iter()
8356 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8357 })
8358 }
8359
8360 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8361 self.background_highlights
8362 .get(&TypeId::of::<T>())
8363 .map_or(false, |(_, highlights)| !highlights.is_empty())
8364 }
8365
8366 pub fn background_highlights_in_range(
8367 &self,
8368 search_range: Range<Anchor>,
8369 display_snapshot: &DisplaySnapshot,
8370 theme: &ThemeColors,
8371 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8372 let mut results = Vec::new();
8373 for (color_fetcher, ranges) in self.background_highlights.values() {
8374 let color = color_fetcher(theme);
8375 let start_ix = match ranges.binary_search_by(|probe| {
8376 let cmp = probe
8377 .end
8378 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8379 if cmp.is_gt() {
8380 Ordering::Greater
8381 } else {
8382 Ordering::Less
8383 }
8384 }) {
8385 Ok(i) | Err(i) => i,
8386 };
8387 for range in &ranges[start_ix..] {
8388 if range
8389 .start
8390 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8391 .is_ge()
8392 {
8393 break;
8394 }
8395
8396 let start = range.start.to_display_point(&display_snapshot);
8397 let end = range.end.to_display_point(&display_snapshot);
8398 results.push((start..end, color))
8399 }
8400 }
8401 results
8402 }
8403
8404 pub fn background_highlight_row_ranges<T: 'static>(
8405 &self,
8406 search_range: Range<Anchor>,
8407 display_snapshot: &DisplaySnapshot,
8408 count: usize,
8409 ) -> Vec<RangeInclusive<DisplayPoint>> {
8410 let mut results = Vec::new();
8411 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8412 return vec![];
8413 };
8414
8415 let start_ix = match ranges.binary_search_by(|probe| {
8416 let cmp = probe
8417 .end
8418 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8419 if cmp.is_gt() {
8420 Ordering::Greater
8421 } else {
8422 Ordering::Less
8423 }
8424 }) {
8425 Ok(i) | Err(i) => i,
8426 };
8427 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8428 if let (Some(start_display), Some(end_display)) = (start, end) {
8429 results.push(
8430 start_display.to_display_point(display_snapshot)
8431 ..=end_display.to_display_point(display_snapshot),
8432 );
8433 }
8434 };
8435 let mut start_row: Option<Point> = None;
8436 let mut end_row: Option<Point> = None;
8437 if ranges.len() > count {
8438 return Vec::new();
8439 }
8440 for range in &ranges[start_ix..] {
8441 if range
8442 .start
8443 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8444 .is_ge()
8445 {
8446 break;
8447 }
8448 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8449 if let Some(current_row) = &end_row {
8450 if end.row == current_row.row {
8451 continue;
8452 }
8453 }
8454 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8455 if start_row.is_none() {
8456 assert_eq!(end_row, None);
8457 start_row = Some(start);
8458 end_row = Some(end);
8459 continue;
8460 }
8461 if let Some(current_end) = end_row.as_mut() {
8462 if start.row > current_end.row + 1 {
8463 push_region(start_row, end_row);
8464 start_row = Some(start);
8465 end_row = Some(end);
8466 } else {
8467 // Merge two hunks.
8468 *current_end = end;
8469 }
8470 } else {
8471 unreachable!();
8472 }
8473 }
8474 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8475 push_region(start_row, end_row);
8476 results
8477 }
8478
8479 pub fn highlight_text<T: 'static>(
8480 &mut self,
8481 ranges: Vec<Range<Anchor>>,
8482 style: HighlightStyle,
8483 cx: &mut ViewContext<Self>,
8484 ) {
8485 self.display_map.update(cx, |map, _| {
8486 map.highlight_text(TypeId::of::<T>(), ranges, style)
8487 });
8488 cx.notify();
8489 }
8490
8491 pub(crate) fn highlight_inlays<T: 'static>(
8492 &mut self,
8493 highlights: Vec<InlayHighlight>,
8494 style: HighlightStyle,
8495 cx: &mut ViewContext<Self>,
8496 ) {
8497 self.display_map.update(cx, |map, _| {
8498 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8499 });
8500 cx.notify();
8501 }
8502
8503 pub fn text_highlights<'a, T: 'static>(
8504 &'a self,
8505 cx: &'a AppContext,
8506 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8507 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8508 }
8509
8510 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8511 let cleared = self
8512 .display_map
8513 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8514 if cleared {
8515 cx.notify();
8516 }
8517 }
8518
8519 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8520 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8521 && self.focus_handle.is_focused(cx)
8522 }
8523
8524 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8525 cx.notify();
8526 }
8527
8528 fn on_buffer_event(
8529 &mut self,
8530 multibuffer: Model<MultiBuffer>,
8531 event: &multi_buffer::Event,
8532 cx: &mut ViewContext<Self>,
8533 ) {
8534 match event {
8535 multi_buffer::Event::Edited {
8536 singleton_buffer_edited,
8537 } => {
8538 self.refresh_active_diagnostics(cx);
8539 self.refresh_code_actions(cx);
8540 if self.has_active_copilot_suggestion(cx) {
8541 self.update_visible_copilot_suggestion(cx);
8542 }
8543 cx.emit(EditorEvent::BufferEdited);
8544 cx.emit(SearchEvent::MatchesInvalidated);
8545
8546 if *singleton_buffer_edited {
8547 if let Some(project) = &self.project {
8548 let project = project.read(cx);
8549 let languages_affected = multibuffer
8550 .read(cx)
8551 .all_buffers()
8552 .into_iter()
8553 .filter_map(|buffer| {
8554 let buffer = buffer.read(cx);
8555 let language = buffer.language()?;
8556 if project.is_local()
8557 && project.language_servers_for_buffer(buffer, cx).count() == 0
8558 {
8559 None
8560 } else {
8561 Some(language)
8562 }
8563 })
8564 .cloned()
8565 .collect::<HashSet<_>>();
8566 if !languages_affected.is_empty() {
8567 self.refresh_inlay_hints(
8568 InlayHintRefreshReason::BufferEdited(languages_affected),
8569 cx,
8570 );
8571 }
8572 }
8573 }
8574
8575 let Some(project) = &self.project else { return };
8576 let telemetry = project.read(cx).client().telemetry().clone();
8577 telemetry.log_edit_event("editor");
8578 }
8579 multi_buffer::Event::ExcerptsAdded {
8580 buffer,
8581 predecessor,
8582 excerpts,
8583 } => {
8584 cx.emit(EditorEvent::ExcerptsAdded {
8585 buffer: buffer.clone(),
8586 predecessor: *predecessor,
8587 excerpts: excerpts.clone(),
8588 });
8589 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8590 }
8591 multi_buffer::Event::ExcerptsRemoved { ids } => {
8592 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8593 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8594 }
8595 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8596 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8597 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8598 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8599 cx.emit(EditorEvent::TitleChanged)
8600 }
8601 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8602 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8603 multi_buffer::Event::DiagnosticsUpdated => {
8604 self.refresh_active_diagnostics(cx);
8605 }
8606 _ => {}
8607 };
8608 }
8609
8610 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8611 cx.notify();
8612 }
8613
8614 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8615 self.refresh_copilot_suggestions(true, cx);
8616 self.refresh_inlay_hints(
8617 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8618 self.selections.newest_anchor().head(),
8619 &self.buffer.read(cx).snapshot(cx),
8620 cx,
8621 )),
8622 cx,
8623 );
8624 cx.notify();
8625 }
8626
8627 pub fn set_searchable(&mut self, searchable: bool) {
8628 self.searchable = searchable;
8629 }
8630
8631 pub fn searchable(&self) -> bool {
8632 self.searchable
8633 }
8634
8635 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8636 let buffer = self.buffer.read(cx);
8637 if buffer.is_singleton() {
8638 cx.propagate();
8639 return;
8640 }
8641
8642 let Some(workspace) = self.workspace() else {
8643 cx.propagate();
8644 return;
8645 };
8646
8647 let mut new_selections_by_buffer = HashMap::default();
8648 for selection in self.selections.all::<usize>(cx) {
8649 for (buffer, mut range, _) in
8650 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8651 {
8652 if selection.reversed {
8653 mem::swap(&mut range.start, &mut range.end);
8654 }
8655 new_selections_by_buffer
8656 .entry(buffer)
8657 .or_insert(Vec::new())
8658 .push(range)
8659 }
8660 }
8661
8662 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8663
8664 // We defer the pane interaction because we ourselves are a workspace item
8665 // and activating a new item causes the pane to call a method on us reentrantly,
8666 // which panics if we're on the stack.
8667 cx.window_context().defer(move |cx| {
8668 workspace.update(cx, |workspace, cx| {
8669 let pane = workspace.active_pane().clone();
8670 pane.update(cx, |pane, _| pane.disable_history());
8671
8672 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8673 let editor = workspace.open_project_item::<Self>(buffer, cx);
8674 editor.update(cx, |editor, cx| {
8675 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8676 s.select_ranges(ranges);
8677 });
8678 });
8679 }
8680
8681 pane.update(cx, |pane, _| pane.enable_history());
8682 })
8683 });
8684 }
8685
8686 fn jump(
8687 &mut self,
8688 path: ProjectPath,
8689 position: Point,
8690 anchor: language::Anchor,
8691 cx: &mut ViewContext<Self>,
8692 ) {
8693 let workspace = self.workspace();
8694 cx.spawn(|_, mut cx| async move {
8695 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8696 let editor = workspace.update(&mut cx, |workspace, cx| {
8697 workspace.open_path(path, None, true, cx)
8698 })?;
8699 let editor = editor
8700 .await?
8701 .downcast::<Editor>()
8702 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8703 .downgrade();
8704 editor.update(&mut cx, |editor, cx| {
8705 let buffer = editor
8706 .buffer()
8707 .read(cx)
8708 .as_singleton()
8709 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8710 let buffer = buffer.read(cx);
8711 let cursor = if buffer.can_resolve(&anchor) {
8712 language::ToPoint::to_point(&anchor, buffer)
8713 } else {
8714 buffer.clip_point(position, Bias::Left)
8715 };
8716
8717 let nav_history = editor.nav_history.take();
8718 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8719 s.select_ranges([cursor..cursor]);
8720 });
8721 editor.nav_history = nav_history;
8722
8723 anyhow::Ok(())
8724 })??;
8725
8726 anyhow::Ok(())
8727 })
8728 .detach_and_log_err(cx);
8729 }
8730
8731 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8732 let snapshot = self.buffer.read(cx).read(cx);
8733 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8734 Some(
8735 ranges
8736 .iter()
8737 .map(move |range| {
8738 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8739 })
8740 .collect(),
8741 )
8742 }
8743
8744 fn selection_replacement_ranges(
8745 &self,
8746 range: Range<OffsetUtf16>,
8747 cx: &AppContext,
8748 ) -> Vec<Range<OffsetUtf16>> {
8749 let selections = self.selections.all::<OffsetUtf16>(cx);
8750 let newest_selection = selections
8751 .iter()
8752 .max_by_key(|selection| selection.id)
8753 .unwrap();
8754 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8755 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8756 let snapshot = self.buffer.read(cx).read(cx);
8757 selections
8758 .into_iter()
8759 .map(|mut selection| {
8760 selection.start.0 =
8761 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8762 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8763 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8764 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8765 })
8766 .collect()
8767 }
8768
8769 fn report_copilot_event(
8770 &self,
8771 suggestion_id: Option<String>,
8772 suggestion_accepted: bool,
8773 cx: &AppContext,
8774 ) {
8775 let Some(project) = &self.project else { return };
8776
8777 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8778 let file_extension = self
8779 .buffer
8780 .read(cx)
8781 .as_singleton()
8782 .and_then(|b| b.read(cx).file())
8783 .and_then(|file| Path::new(file.file_name(cx)).extension())
8784 .and_then(|e| e.to_str())
8785 .map(|a| a.to_string());
8786
8787 let telemetry = project.read(cx).client().telemetry().clone();
8788
8789 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8790 }
8791
8792 #[cfg(any(test, feature = "test-support"))]
8793 fn report_editor_event(
8794 &self,
8795 _operation: &'static str,
8796 _file_extension: Option<String>,
8797 _cx: &AppContext,
8798 ) {
8799 }
8800
8801 #[cfg(not(any(test, feature = "test-support")))]
8802 fn report_editor_event(
8803 &self,
8804 operation: &'static str,
8805 file_extension: Option<String>,
8806 cx: &AppContext,
8807 ) {
8808 let Some(project) = &self.project else { return };
8809
8810 // If None, we are in a file without an extension
8811 let file = self
8812 .buffer
8813 .read(cx)
8814 .as_singleton()
8815 .and_then(|b| b.read(cx).file());
8816 let file_extension = file_extension.or(file
8817 .as_ref()
8818 .and_then(|file| Path::new(file.file_name(cx)).extension())
8819 .and_then(|e| e.to_str())
8820 .map(|a| a.to_string()));
8821
8822 let vim_mode = cx
8823 .global::<SettingsStore>()
8824 .raw_user_settings()
8825 .get("vim_mode")
8826 == Some(&serde_json::Value::Bool(true));
8827 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8828 let copilot_enabled_for_language = self
8829 .buffer
8830 .read(cx)
8831 .settings_at(0, cx)
8832 .show_copilot_suggestions;
8833
8834 let telemetry = project.read(cx).client().telemetry().clone();
8835 telemetry.report_editor_event(
8836 file_extension,
8837 vim_mode,
8838 operation,
8839 copilot_enabled,
8840 copilot_enabled_for_language,
8841 )
8842 }
8843
8844 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8845 /// with each line being an array of {text, highlight} objects.
8846 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8847 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8848 return;
8849 };
8850
8851 #[derive(Serialize)]
8852 struct Chunk<'a> {
8853 text: String,
8854 highlight: Option<&'a str>,
8855 }
8856
8857 let snapshot = buffer.read(cx).snapshot();
8858 let range = self
8859 .selected_text_range(cx)
8860 .and_then(|selected_range| {
8861 if selected_range.is_empty() {
8862 None
8863 } else {
8864 Some(selected_range)
8865 }
8866 })
8867 .unwrap_or_else(|| 0..snapshot.len());
8868
8869 let chunks = snapshot.chunks(range, true);
8870 let mut lines = Vec::new();
8871 let mut line: VecDeque<Chunk> = VecDeque::new();
8872
8873 let Some(style) = self.style.as_ref() else {
8874 return;
8875 };
8876
8877 for chunk in chunks {
8878 let highlight = chunk
8879 .syntax_highlight_id
8880 .and_then(|id| id.name(&style.syntax));
8881 let mut chunk_lines = chunk.text.split("\n").peekable();
8882 while let Some(text) = chunk_lines.next() {
8883 let mut merged_with_last_token = false;
8884 if let Some(last_token) = line.back_mut() {
8885 if last_token.highlight == highlight {
8886 last_token.text.push_str(text);
8887 merged_with_last_token = true;
8888 }
8889 }
8890
8891 if !merged_with_last_token {
8892 line.push_back(Chunk {
8893 text: text.into(),
8894 highlight,
8895 });
8896 }
8897
8898 if chunk_lines.peek().is_some() {
8899 if line.len() > 1 && line.front().unwrap().text.is_empty() {
8900 line.pop_front();
8901 }
8902 if line.len() > 1 && line.back().unwrap().text.is_empty() {
8903 line.pop_back();
8904 }
8905
8906 lines.push(mem::take(&mut line));
8907 }
8908 }
8909 }
8910
8911 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
8912 return;
8913 };
8914 cx.write_to_clipboard(ClipboardItem::new(lines));
8915 }
8916
8917 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
8918 &self.inlay_hint_cache
8919 }
8920
8921 pub fn replay_insert_event(
8922 &mut self,
8923 text: &str,
8924 relative_utf16_range: Option<Range<isize>>,
8925 cx: &mut ViewContext<Self>,
8926 ) {
8927 if !self.input_enabled {
8928 cx.emit(EditorEvent::InputIgnored { text: text.into() });
8929 return;
8930 }
8931 if let Some(relative_utf16_range) = relative_utf16_range {
8932 let selections = self.selections.all::<OffsetUtf16>(cx);
8933 self.change_selections(None, cx, |s| {
8934 let new_ranges = selections.into_iter().map(|range| {
8935 let start = OffsetUtf16(
8936 range
8937 .head()
8938 .0
8939 .saturating_add_signed(relative_utf16_range.start),
8940 );
8941 let end = OffsetUtf16(
8942 range
8943 .head()
8944 .0
8945 .saturating_add_signed(relative_utf16_range.end),
8946 );
8947 start..end
8948 });
8949 s.select_ranges(new_ranges);
8950 });
8951 }
8952
8953 self.handle_input(text, cx);
8954 }
8955
8956 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
8957 let Some(project) = self.project.as_ref() else {
8958 return false;
8959 };
8960 let project = project.read(cx);
8961
8962 let mut supports = false;
8963 self.buffer().read(cx).for_each_buffer(|buffer| {
8964 if !supports {
8965 supports = project
8966 .language_servers_for_buffer(buffer.read(cx), cx)
8967 .any(
8968 |(_, server)| match server.capabilities().inlay_hint_provider {
8969 Some(lsp::OneOf::Left(enabled)) => enabled,
8970 Some(lsp::OneOf::Right(_)) => true,
8971 None => false,
8972 },
8973 )
8974 }
8975 });
8976 supports
8977 }
8978
8979 pub fn focus(&self, cx: &mut WindowContext) {
8980 cx.focus(&self.focus_handle)
8981 }
8982
8983 pub fn is_focused(&self, cx: &WindowContext) -> bool {
8984 self.focus_handle.is_focused(cx)
8985 }
8986
8987 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
8988 cx.emit(EditorEvent::Focused);
8989
8990 if let Some(rename) = self.pending_rename.as_ref() {
8991 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
8992 cx.focus(&rename_editor_focus_handle);
8993 } else {
8994 self.blink_manager.update(cx, BlinkManager::enable);
8995 self.buffer.update(cx, |buffer, cx| {
8996 buffer.finalize_last_transaction(cx);
8997 if self.leader_peer_id.is_none() {
8998 buffer.set_active_selections(
8999 &self.selections.disjoint_anchors(),
9000 self.selections.line_mode,
9001 self.cursor_shape,
9002 cx,
9003 );
9004 }
9005 });
9006 }
9007 }
9008
9009 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9010 self.blink_manager.update(cx, BlinkManager::disable);
9011 self.buffer
9012 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9013 self.hide_context_menu(cx);
9014 hide_hover(self, cx);
9015 cx.emit(EditorEvent::Blurred);
9016 cx.notify();
9017 }
9018
9019 pub fn register_action<A: Action>(
9020 &mut self,
9021 listener: impl Fn(&A, &mut WindowContext) + 'static,
9022 ) -> &mut Self {
9023 let listener = Arc::new(listener);
9024
9025 self.editor_actions.push(Box::new(move |cx| {
9026 let _view = cx.view().clone();
9027 let cx = cx.window_context();
9028 let listener = listener.clone();
9029 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9030 let action = action.downcast_ref().unwrap();
9031 if phase == DispatchPhase::Bubble {
9032 listener(action, cx)
9033 }
9034 })
9035 }));
9036 self
9037 }
9038}
9039
9040pub trait CollaborationHub {
9041 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9042 fn user_participant_indices<'a>(
9043 &self,
9044 cx: &'a AppContext,
9045 ) -> &'a HashMap<u64, ParticipantIndex>;
9046}
9047
9048impl CollaborationHub for Model<Project> {
9049 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9050 self.read(cx).collaborators()
9051 }
9052
9053 fn user_participant_indices<'a>(
9054 &self,
9055 cx: &'a AppContext,
9056 ) -> &'a HashMap<u64, ParticipantIndex> {
9057 self.read(cx).user_store().read(cx).participant_indices()
9058 }
9059}
9060
9061fn inlay_hint_settings(
9062 location: Anchor,
9063 snapshot: &MultiBufferSnapshot,
9064 cx: &mut ViewContext<'_, Editor>,
9065) -> InlayHintSettings {
9066 let file = snapshot.file_at(location);
9067 let language = snapshot.language_at(location);
9068 let settings = all_language_settings(file, cx);
9069 settings
9070 .language(language.map(|l| l.name()).as_deref())
9071 .inlay_hints
9072}
9073
9074fn consume_contiguous_rows(
9075 contiguous_row_selections: &mut Vec<Selection<Point>>,
9076 selection: &Selection<Point>,
9077 display_map: &DisplaySnapshot,
9078 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9079) -> (u32, u32) {
9080 contiguous_row_selections.push(selection.clone());
9081 let start_row = selection.start.row;
9082 let mut end_row = ending_row(selection, display_map);
9083
9084 while let Some(next_selection) = selections.peek() {
9085 if next_selection.start.row <= end_row {
9086 end_row = ending_row(next_selection, display_map);
9087 contiguous_row_selections.push(selections.next().unwrap().clone());
9088 } else {
9089 break;
9090 }
9091 }
9092 (start_row, end_row)
9093}
9094
9095fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9096 if next_selection.end.column > 0 || next_selection.is_empty() {
9097 display_map.next_line_boundary(next_selection.end).0.row + 1
9098 } else {
9099 next_selection.end.row
9100 }
9101}
9102
9103impl EditorSnapshot {
9104 pub fn remote_selections_in_range<'a>(
9105 &'a self,
9106 range: &'a Range<Anchor>,
9107 collaboration_hub: &dyn CollaborationHub,
9108 cx: &'a AppContext,
9109 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9110 let participant_indices = collaboration_hub.user_participant_indices(cx);
9111 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9112 let collaborators_by_replica_id = collaborators_by_peer_id
9113 .iter()
9114 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9115 .collect::<HashMap<_, _>>();
9116 self.buffer_snapshot
9117 .remote_selections_in_range(range)
9118 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9119 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9120 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9121 Some(RemoteSelection {
9122 replica_id,
9123 selection,
9124 cursor_shape,
9125 line_mode,
9126 participant_index,
9127 peer_id: collaborator.peer_id,
9128 })
9129 })
9130 }
9131
9132 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9133 self.display_snapshot.buffer_snapshot.language_at(position)
9134 }
9135
9136 pub fn is_focused(&self) -> bool {
9137 self.is_focused
9138 }
9139
9140 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9141 self.placeholder_text.as_ref()
9142 }
9143
9144 pub fn scroll_position(&self) -> gpui::Point<f32> {
9145 self.scroll_anchor.scroll_position(&self.display_snapshot)
9146 }
9147}
9148
9149impl Deref for EditorSnapshot {
9150 type Target = DisplaySnapshot;
9151
9152 fn deref(&self) -> &Self::Target {
9153 &self.display_snapshot
9154 }
9155}
9156
9157#[derive(Clone, Debug, PartialEq, Eq)]
9158pub enum EditorEvent {
9159 InputIgnored {
9160 text: Arc<str>,
9161 },
9162 InputHandled {
9163 utf16_range_to_replace: Option<Range<isize>>,
9164 text: Arc<str>,
9165 },
9166 ExcerptsAdded {
9167 buffer: Model<Buffer>,
9168 predecessor: ExcerptId,
9169 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9170 },
9171 ExcerptsRemoved {
9172 ids: Vec<ExcerptId>,
9173 },
9174 BufferEdited,
9175 Edited,
9176 Reparsed,
9177 Focused,
9178 Blurred,
9179 DirtyChanged,
9180 Saved,
9181 TitleChanged,
9182 DiffBaseChanged,
9183 SelectionsChanged {
9184 local: bool,
9185 },
9186 ScrollPositionChanged {
9187 local: bool,
9188 autoscroll: bool,
9189 },
9190 Closed,
9191}
9192
9193impl EventEmitter<EditorEvent> for Editor {}
9194
9195impl FocusableView for Editor {
9196 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9197 self.focus_handle.clone()
9198 }
9199}
9200
9201impl Render for Editor {
9202 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9203 let settings = ThemeSettings::get_global(cx);
9204 let text_style = match self.mode {
9205 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9206 color: cx.theme().colors().editor_foreground,
9207 font_family: settings.ui_font.family.clone(),
9208 font_features: settings.ui_font.features,
9209 font_size: rems(0.875).into(),
9210 font_weight: FontWeight::NORMAL,
9211 font_style: FontStyle::Normal,
9212 line_height: relative(settings.buffer_line_height.value()),
9213 background_color: None,
9214 underline: None,
9215 white_space: WhiteSpace::Normal,
9216 },
9217
9218 EditorMode::Full => TextStyle {
9219 color: cx.theme().colors().editor_foreground,
9220 font_family: settings.buffer_font.family.clone(),
9221 font_features: settings.buffer_font.features,
9222 font_size: settings.buffer_font_size(cx).into(),
9223 font_weight: FontWeight::NORMAL,
9224 font_style: FontStyle::Normal,
9225 line_height: relative(settings.buffer_line_height.value()),
9226 background_color: None,
9227 underline: None,
9228 white_space: WhiteSpace::Normal,
9229 },
9230 };
9231
9232 let background = match self.mode {
9233 EditorMode::SingleLine => cx.theme().system().transparent,
9234 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9235 EditorMode::Full => cx.theme().colors().editor_background,
9236 };
9237
9238 EditorElement::new(
9239 cx.view(),
9240 EditorStyle {
9241 background,
9242 local_player: cx.theme().players().local(),
9243 text: text_style,
9244 scrollbar_width: px(12.),
9245 syntax: cx.theme().syntax().clone(),
9246 status: cx.theme().status().clone(),
9247 inlays_style: HighlightStyle {
9248 color: Some(cx.theme().status().hint),
9249 font_weight: Some(FontWeight::BOLD),
9250 ..HighlightStyle::default()
9251 },
9252 suggestions_style: HighlightStyle {
9253 color: Some(cx.theme().status().predictive),
9254 ..HighlightStyle::default()
9255 },
9256 },
9257 )
9258 }
9259}
9260
9261impl InputHandler for Editor {
9262 fn text_for_range(
9263 &mut self,
9264 range_utf16: Range<usize>,
9265 cx: &mut ViewContext<Self>,
9266 ) -> Option<String> {
9267 Some(
9268 self.buffer
9269 .read(cx)
9270 .read(cx)
9271 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9272 .collect(),
9273 )
9274 }
9275
9276 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9277 // Prevent the IME menu from appearing when holding down an alphabetic key
9278 // while input is disabled.
9279 if !self.input_enabled {
9280 return None;
9281 }
9282
9283 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9284 Some(range.start.0..range.end.0)
9285 }
9286
9287 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9288 let snapshot = self.buffer.read(cx).read(cx);
9289 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9290 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9291 }
9292
9293 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9294 self.clear_highlights::<InputComposition>(cx);
9295 self.ime_transaction.take();
9296 }
9297
9298 fn replace_text_in_range(
9299 &mut self,
9300 range_utf16: Option<Range<usize>>,
9301 text: &str,
9302 cx: &mut ViewContext<Self>,
9303 ) {
9304 if !self.input_enabled {
9305 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9306 return;
9307 }
9308
9309 self.transact(cx, |this, cx| {
9310 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9311 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9312 Some(this.selection_replacement_ranges(range_utf16, cx))
9313 } else {
9314 this.marked_text_ranges(cx)
9315 };
9316
9317 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9318 let newest_selection_id = this.selections.newest_anchor().id;
9319 this.selections
9320 .all::<OffsetUtf16>(cx)
9321 .iter()
9322 .zip(ranges_to_replace.iter())
9323 .find_map(|(selection, range)| {
9324 if selection.id == newest_selection_id {
9325 Some(
9326 (range.start.0 as isize - selection.head().0 as isize)
9327 ..(range.end.0 as isize - selection.head().0 as isize),
9328 )
9329 } else {
9330 None
9331 }
9332 })
9333 });
9334
9335 cx.emit(EditorEvent::InputHandled {
9336 utf16_range_to_replace: range_to_replace,
9337 text: text.into(),
9338 });
9339
9340 if let Some(new_selected_ranges) = new_selected_ranges {
9341 this.change_selections(None, cx, |selections| {
9342 selections.select_ranges(new_selected_ranges)
9343 });
9344 }
9345
9346 this.handle_input(text, cx);
9347 });
9348
9349 if let Some(transaction) = self.ime_transaction {
9350 self.buffer.update(cx, |buffer, cx| {
9351 buffer.group_until_transaction(transaction, cx);
9352 });
9353 }
9354
9355 self.unmark_text(cx);
9356 }
9357
9358 fn replace_and_mark_text_in_range(
9359 &mut self,
9360 range_utf16: Option<Range<usize>>,
9361 text: &str,
9362 new_selected_range_utf16: Option<Range<usize>>,
9363 cx: &mut ViewContext<Self>,
9364 ) {
9365 if !self.input_enabled {
9366 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9367 return;
9368 }
9369
9370 let transaction = self.transact(cx, |this, cx| {
9371 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9372 let snapshot = this.buffer.read(cx).read(cx);
9373 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9374 for marked_range in &mut marked_ranges {
9375 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9376 marked_range.start.0 += relative_range_utf16.start;
9377 marked_range.start =
9378 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9379 marked_range.end =
9380 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9381 }
9382 }
9383 Some(marked_ranges)
9384 } else if let Some(range_utf16) = range_utf16 {
9385 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9386 Some(this.selection_replacement_ranges(range_utf16, cx))
9387 } else {
9388 None
9389 };
9390
9391 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9392 let newest_selection_id = this.selections.newest_anchor().id;
9393 this.selections
9394 .all::<OffsetUtf16>(cx)
9395 .iter()
9396 .zip(ranges_to_replace.iter())
9397 .find_map(|(selection, range)| {
9398 if selection.id == newest_selection_id {
9399 Some(
9400 (range.start.0 as isize - selection.head().0 as isize)
9401 ..(range.end.0 as isize - selection.head().0 as isize),
9402 )
9403 } else {
9404 None
9405 }
9406 })
9407 });
9408
9409 cx.emit(EditorEvent::InputHandled {
9410 utf16_range_to_replace: range_to_replace,
9411 text: text.into(),
9412 });
9413
9414 if let Some(ranges) = ranges_to_replace {
9415 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9416 }
9417
9418 let marked_ranges = {
9419 let snapshot = this.buffer.read(cx).read(cx);
9420 this.selections
9421 .disjoint_anchors()
9422 .iter()
9423 .map(|selection| {
9424 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9425 })
9426 .collect::<Vec<_>>()
9427 };
9428
9429 if text.is_empty() {
9430 this.unmark_text(cx);
9431 } else {
9432 this.highlight_text::<InputComposition>(
9433 marked_ranges.clone(),
9434 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9435 cx,
9436 );
9437 }
9438
9439 this.handle_input(text, cx);
9440
9441 if let Some(new_selected_range) = new_selected_range_utf16 {
9442 let snapshot = this.buffer.read(cx).read(cx);
9443 let new_selected_ranges = marked_ranges
9444 .into_iter()
9445 .map(|marked_range| {
9446 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9447 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9448 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9449 snapshot.clip_offset_utf16(new_start, Bias::Left)
9450 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9451 })
9452 .collect::<Vec<_>>();
9453
9454 drop(snapshot);
9455 this.change_selections(None, cx, |selections| {
9456 selections.select_ranges(new_selected_ranges)
9457 });
9458 }
9459 });
9460
9461 self.ime_transaction = self.ime_transaction.or(transaction);
9462 if let Some(transaction) = self.ime_transaction {
9463 self.buffer.update(cx, |buffer, cx| {
9464 buffer.group_until_transaction(transaction, cx);
9465 });
9466 }
9467
9468 if self.text_highlights::<InputComposition>(cx).is_none() {
9469 self.ime_transaction.take();
9470 }
9471 }
9472
9473 fn bounds_for_range(
9474 &mut self,
9475 range_utf16: Range<usize>,
9476 element_bounds: gpui::Bounds<Pixels>,
9477 cx: &mut ViewContext<Self>,
9478 ) -> Option<gpui::Bounds<Pixels>> {
9479 let text_layout_details = self.text_layout_details(cx);
9480 let style = &text_layout_details.editor_style;
9481 let font_id = cx.text_system().resolve_font(&style.text.font());
9482 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9483 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9484 let em_width = cx
9485 .text_system()
9486 .typographic_bounds(font_id, font_size, 'm')
9487 .unwrap()
9488 .size
9489 .width;
9490
9491 let snapshot = self.snapshot(cx);
9492 let scroll_position = snapshot.scroll_position();
9493 let scroll_left = scroll_position.x * em_width;
9494
9495 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9496 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9497 + self.gutter_width;
9498 let y = line_height * (start.row() as f32 - scroll_position.y);
9499
9500 Some(Bounds {
9501 origin: element_bounds.origin + point(x, y),
9502 size: size(em_width, line_height),
9503 })
9504 }
9505}
9506
9507trait SelectionExt {
9508 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9509 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9510 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9511 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9512 -> Range<u32>;
9513}
9514
9515impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9516 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9517 let start = self.start.to_point(buffer);
9518 let end = self.end.to_point(buffer);
9519 if self.reversed {
9520 end..start
9521 } else {
9522 start..end
9523 }
9524 }
9525
9526 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9527 let start = self.start.to_offset(buffer);
9528 let end = self.end.to_offset(buffer);
9529 if self.reversed {
9530 end..start
9531 } else {
9532 start..end
9533 }
9534 }
9535
9536 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9537 let start = self
9538 .start
9539 .to_point(&map.buffer_snapshot)
9540 .to_display_point(map);
9541 let end = self
9542 .end
9543 .to_point(&map.buffer_snapshot)
9544 .to_display_point(map);
9545 if self.reversed {
9546 end..start
9547 } else {
9548 start..end
9549 }
9550 }
9551
9552 fn spanned_rows(
9553 &self,
9554 include_end_if_at_line_start: bool,
9555 map: &DisplaySnapshot,
9556 ) -> Range<u32> {
9557 let start = self.start.to_point(&map.buffer_snapshot);
9558 let mut end = self.end.to_point(&map.buffer_snapshot);
9559 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9560 end.row -= 1;
9561 }
9562
9563 let buffer_start = map.prev_line_boundary(start).0;
9564 let buffer_end = map.next_line_boundary(end).0;
9565 buffer_start.row..buffer_end.row + 1
9566 }
9567}
9568
9569impl<T: InvalidationRegion> InvalidationStack<T> {
9570 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9571 where
9572 S: Clone + ToOffset,
9573 {
9574 while let Some(region) = self.last() {
9575 let all_selections_inside_invalidation_ranges =
9576 if selections.len() == region.ranges().len() {
9577 selections
9578 .iter()
9579 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9580 .all(|(selection, invalidation_range)| {
9581 let head = selection.head().to_offset(buffer);
9582 invalidation_range.start <= head && invalidation_range.end >= head
9583 })
9584 } else {
9585 false
9586 };
9587
9588 if all_selections_inside_invalidation_ranges {
9589 break;
9590 } else {
9591 self.pop();
9592 }
9593 }
9594 }
9595}
9596
9597impl<T> Default for InvalidationStack<T> {
9598 fn default() -> Self {
9599 Self(Default::default())
9600 }
9601}
9602
9603impl<T> Deref for InvalidationStack<T> {
9604 type Target = Vec<T>;
9605
9606 fn deref(&self) -> &Self::Target {
9607 &self.0
9608 }
9609}
9610
9611impl<T> DerefMut for InvalidationStack<T> {
9612 fn deref_mut(&mut self) -> &mut Self::Target {
9613 &mut self.0
9614 }
9615}
9616
9617impl InvalidationRegion for SnippetState {
9618 fn ranges(&self) -> &[Range<Anchor>] {
9619 &self.ranges[self.active_index]
9620 }
9621}
9622
9623pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9624 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9625
9626 Arc::new(move |cx: &mut BlockContext| {
9627 let color = Some(cx.theme().colors().text_accent);
9628 let group_id: SharedString = cx.block_id.to_string().into();
9629 // TODO: Nate: We should tint the background of the block with the severity color
9630 // We need to extend the theme before we can do this
9631 h_flex()
9632 .id(cx.block_id)
9633 .group(group_id.clone())
9634 .relative()
9635 .pl(cx.anchor_x)
9636 .size_full()
9637 .gap_2()
9638 .child(
9639 StyledText::new(text_without_backticks.clone()).with_highlights(
9640 &cx.text_style(),
9641 code_ranges.iter().map(|range| {
9642 (
9643 range.clone(),
9644 HighlightStyle {
9645 color,
9646 ..Default::default()
9647 },
9648 )
9649 }),
9650 ),
9651 )
9652 .child(
9653 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9654 .icon_color(Color::Muted)
9655 .size(ButtonSize::Compact)
9656 .style(ButtonStyle::Transparent)
9657 .visible_on_hover(group_id)
9658 .on_click(cx.listener({
9659 let message = diagnostic.message.clone();
9660 move |_, _, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9661 }))
9662 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9663 )
9664 .into_any_element()
9665 })
9666}
9667
9668pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9669 let mut text_without_backticks = String::new();
9670 let mut code_ranges = Vec::new();
9671
9672 if let Some(source) = &diagnostic.source {
9673 text_without_backticks.push_str(&source);
9674 code_ranges.push(0..source.len());
9675 text_without_backticks.push_str(": ");
9676 }
9677
9678 let mut prev_offset = 0;
9679 let mut in_code_block = false;
9680 for (ix, _) in diagnostic
9681 .message
9682 .match_indices('`')
9683 .chain([(diagnostic.message.len(), "")])
9684 {
9685 let prev_len = text_without_backticks.len();
9686 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9687 prev_offset = ix + 1;
9688 if in_code_block {
9689 code_ranges.push(prev_len..text_without_backticks.len());
9690 in_code_block = false;
9691 } else {
9692 in_code_block = true;
9693 }
9694 }
9695
9696 (text_without_backticks.into(), code_ranges)
9697}
9698
9699fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9700 match (severity, valid) {
9701 (DiagnosticSeverity::ERROR, true) => colors.error,
9702 (DiagnosticSeverity::ERROR, false) => colors.error,
9703 (DiagnosticSeverity::WARNING, true) => colors.warning,
9704 (DiagnosticSeverity::WARNING, false) => colors.warning,
9705 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9706 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9707 (DiagnosticSeverity::HINT, true) => colors.info,
9708 (DiagnosticSeverity::HINT, false) => colors.info,
9709 _ => colors.ignored,
9710 }
9711}
9712
9713pub fn styled_runs_for_code_label<'a>(
9714 label: &'a CodeLabel,
9715 syntax_theme: &'a theme::SyntaxTheme,
9716) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9717 let fade_out = HighlightStyle {
9718 fade_out: Some(0.35),
9719 ..Default::default()
9720 };
9721
9722 let mut prev_end = label.filter_range.end;
9723 label
9724 .runs
9725 .iter()
9726 .enumerate()
9727 .flat_map(move |(ix, (range, highlight_id))| {
9728 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9729 style
9730 } else {
9731 return Default::default();
9732 };
9733 let mut muted_style = style;
9734 muted_style.highlight(fade_out);
9735
9736 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9737 if range.start >= label.filter_range.end {
9738 if range.start > prev_end {
9739 runs.push((prev_end..range.start, fade_out));
9740 }
9741 runs.push((range.clone(), muted_style));
9742 } else if range.end <= label.filter_range.end {
9743 runs.push((range.clone(), style));
9744 } else {
9745 runs.push((range.start..label.filter_range.end, style));
9746 runs.push((label.filter_range.end..range.end, muted_style));
9747 }
9748 prev_end = cmp::max(prev_end, range.end);
9749
9750 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9751 runs.push((prev_end..label.text.len(), fade_out));
9752 }
9753
9754 runs
9755 })
9756}
9757
9758pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
9759 let mut index = 0;
9760 let mut codepoints = text.char_indices().peekable();
9761
9762 std::iter::from_fn(move || {
9763 let start_index = index;
9764 while let Some((new_index, codepoint)) = codepoints.next() {
9765 index = new_index + codepoint.len_utf8();
9766 let current_upper = codepoint.is_uppercase();
9767 let next_upper = codepoints
9768 .peek()
9769 .map(|(_, c)| c.is_uppercase())
9770 .unwrap_or(false);
9771
9772 if !current_upper && next_upper {
9773 return Some(&text[start_index..index]);
9774 }
9775 }
9776
9777 index = text.len();
9778 if start_index < text.len() {
9779 return Some(&text[start_index..]);
9780 }
9781 None
9782 })
9783 .flat_map(|word| word.split_inclusive('_'))
9784 .flat_map(|word| word.split_inclusive('-'))
9785}
9786
9787trait RangeToAnchorExt {
9788 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
9789}
9790
9791impl<T: ToOffset> RangeToAnchorExt for Range<T> {
9792 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
9793 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
9794 }
9795}