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 debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_popover;
26pub mod items;
27mod link_go_to_definition;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakView,
65 WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use link_go_to_definition::{GoToDefinitionLink, InlayHighlight, LinkGoToDefinitionState};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
92use rand::prelude::*;
93use rpc::proto::*;
94use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
95use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
96use serde::{Deserialize, Serialize};
97use settings::{Settings, SettingsStore};
98use smallvec::SmallVec;
99use snippet::Snippet;
100use std::{
101 any::TypeId,
102 borrow::Cow,
103 cmp::{self, Ordering, Reverse},
104 mem,
105 num::NonZeroU32,
106 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
107 path::Path,
108 sync::Arc,
109 time::{Duration, Instant},
110};
111pub use sum_tree::Bias;
112use sum_tree::TreeMap;
113use text::{BufferId, OffsetUtf16, Rope};
114use theme::{
115 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
116 ThemeColors, ThemeSettings,
117};
118use ui::{
119 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
120 Tooltip,
121};
122use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
123use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
124
125const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
126const MAX_LINE_LEN: usize = 1024;
127const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
128const MAX_SELECTION_HISTORY_LEN: usize = 1024;
129const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
130pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
131#[doc(hidden)]
132pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
133#[doc(hidden)]
134pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
135
136pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
137
138pub fn render_parsed_markdown(
139 element_id: impl Into<ElementId>,
140 parsed: &language::ParsedMarkdown,
141 editor_style: &EditorStyle,
142 workspace: Option<WeakView<Workspace>>,
143 cx: &mut ViewContext<Editor>,
144) -> InteractiveText {
145 let code_span_background_color = cx
146 .theme()
147 .colors()
148 .editor_document_highlight_read_background;
149
150 let highlights = gpui::combine_highlights(
151 parsed.highlights.iter().filter_map(|(range, highlight)| {
152 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
153 Some((range.clone(), highlight))
154 }),
155 parsed
156 .regions
157 .iter()
158 .zip(&parsed.region_ranges)
159 .filter_map(|(region, range)| {
160 if region.code {
161 Some((
162 range.clone(),
163 HighlightStyle {
164 background_color: Some(code_span_background_color),
165 ..Default::default()
166 },
167 ))
168 } else {
169 None
170 }
171 }),
172 );
173
174 let mut links = Vec::new();
175 let mut link_ranges = Vec::new();
176 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
177 if let Some(link) = region.link.clone() {
178 links.push(link);
179 link_ranges.push(range.clone());
180 }
181 }
182
183 InteractiveText::new(
184 element_id,
185 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
186 )
187 .on_click(link_ranges, move |clicked_range_ix, cx| {
188 match &links[clicked_range_ix] {
189 markdown::Link::Web { url } => cx.open_url(url),
190 markdown::Link::Path { path } => {
191 if let Some(workspace) = &workspace {
192 _ = workspace.update(cx, |workspace, cx| {
193 workspace.open_abs_path(path.clone(), false, cx).detach();
194 });
195 }
196 }
197 }
198 })
199}
200
201#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
202pub(crate) enum InlayId {
203 Suggestion(usize),
204 Hint(usize),
205}
206
207impl InlayId {
208 fn id(&self) -> usize {
209 match self {
210 Self::Suggestion(id) => *id,
211 Self::Hint(id) => *id,
212 }
213 }
214}
215
216enum DocumentHighlightRead {}
217enum DocumentHighlightWrite {}
218enum InputComposition {}
219
220#[derive(Copy, Clone, PartialEq, Eq)]
221pub enum Direction {
222 Prev,
223 Next,
224}
225
226pub fn init_settings(cx: &mut AppContext) {
227 EditorSettings::register(cx);
228}
229
230pub fn init(cx: &mut AppContext) {
231 init_settings(cx);
232
233 workspace::register_project_item::<Editor>(cx);
234 workspace::register_followable_item::<Editor>(cx);
235 workspace::register_deserializable_item::<Editor>(cx);
236 cx.observe_new_views(
237 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
238 workspace.register_action(Editor::new_file);
239 workspace.register_action(Editor::new_file_in_direction);
240 },
241 )
242 .detach();
243
244 cx.on_action(move |_: &workspace::NewFile, cx| {
245 let app_state = workspace::AppState::global(cx);
246 if let Some(app_state) = app_state.upgrade() {
247 workspace::open_new(&app_state, cx, |workspace, cx| {
248 Editor::new_file(workspace, &Default::default(), cx)
249 })
250 .detach();
251 }
252 });
253 cx.on_action(move |_: &workspace::NewWindow, cx| {
254 let app_state = workspace::AppState::global(cx);
255 if let Some(app_state) = app_state.upgrade() {
256 workspace::open_new(&app_state, cx, |workspace, cx| {
257 Editor::new_file(workspace, &Default::default(), cx)
258 })
259 .detach();
260 }
261 });
262}
263
264trait InvalidationRegion {
265 fn ranges(&self) -> &[Range<Anchor>];
266}
267
268#[derive(Clone, Debug, PartialEq)]
269pub enum SelectPhase {
270 Begin {
271 position: DisplayPoint,
272 add: bool,
273 click_count: usize,
274 },
275 BeginColumnar {
276 position: DisplayPoint,
277 goal_column: u32,
278 },
279 Extend {
280 position: DisplayPoint,
281 click_count: usize,
282 },
283 Update {
284 position: DisplayPoint,
285 goal_column: u32,
286 scroll_delta: gpui::Point<f32>,
287 },
288 End,
289}
290
291#[derive(Clone, Debug)]
292pub(crate) enum SelectMode {
293 Character,
294 Word(Range<Anchor>),
295 Line(Range<Anchor>),
296 All,
297}
298
299#[derive(Copy, Clone, PartialEq, Eq, Debug)]
300pub enum EditorMode {
301 SingleLine,
302 AutoHeight { max_lines: usize },
303 Full,
304}
305
306#[derive(Clone, Debug)]
307pub enum SoftWrap {
308 None,
309 EditorWidth,
310 Column(u32),
311}
312
313#[derive(Clone)]
314pub struct EditorStyle {
315 pub background: Hsla,
316 pub local_player: PlayerColor,
317 pub text: TextStyle,
318 pub scrollbar_width: Pixels,
319 pub syntax: Arc<SyntaxTheme>,
320 pub status: StatusColors,
321 pub inlays_style: HighlightStyle,
322 pub suggestions_style: HighlightStyle,
323}
324
325impl Default for EditorStyle {
326 fn default() -> Self {
327 Self {
328 background: Hsla::default(),
329 local_player: PlayerColor::default(),
330 text: TextStyle::default(),
331 scrollbar_width: Pixels::default(),
332 syntax: Default::default(),
333 // HACK: Status colors don't have a real default.
334 // We should look into removing the status colors from the editor
335 // style and retrieve them directly from the theme.
336 status: StatusColors::dark(),
337 inlays_style: HighlightStyle::default(),
338 suggestions_style: HighlightStyle::default(),
339 }
340 }
341}
342
343type CompletionId = usize;
344
345// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
346// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
347
348type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
349type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
350
351pub struct Editor {
352 handle: WeakView<Self>,
353 focus_handle: FocusHandle,
354 buffer: Model<MultiBuffer>,
355 display_map: Model<DisplayMap>,
356 pub selections: SelectionsCollection,
357 pub scroll_manager: ScrollManager,
358 columnar_selection_tail: Option<Anchor>,
359 add_selections_state: Option<AddSelectionsState>,
360 select_next_state: Option<SelectNextState>,
361 select_prev_state: Option<SelectNextState>,
362 selection_history: SelectionHistory,
363 autoclose_regions: Vec<AutocloseRegion>,
364 snippet_stack: InvalidationStack<SnippetState>,
365 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
366 ime_transaction: Option<TransactionId>,
367 active_diagnostics: Option<ActiveDiagnosticGroup>,
368 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
369 project: Option<Model<Project>>,
370 completion_provider: Option<Box<dyn CompletionProvider>>,
371 collaboration_hub: Option<Box<dyn CollaborationHub>>,
372 blink_manager: Model<BlinkManager>,
373 show_cursor_names: bool,
374 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
375 pub show_local_selections: bool,
376 mode: EditorMode,
377 show_gutter: bool,
378 show_wrap_guides: Option<bool>,
379 placeholder_text: Option<Arc<str>>,
380 highlighted_rows: Option<Range<u32>>,
381 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
382 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
383 nav_history: Option<ItemNavHistory>,
384 context_menu: RwLock<Option<ContextMenu>>,
385 mouse_context_menu: Option<MouseContextMenu>,
386 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
387 next_completion_id: CompletionId,
388 completion_documentation_pre_resolve_debounce: DebouncedDelay,
389 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
390 code_actions_task: Option<Task<()>>,
391 document_highlights_task: Option<Task<()>>,
392 pending_rename: Option<RenameState>,
393 searchable: bool,
394 cursor_shape: CursorShape,
395 collapse_matches: bool,
396 autoindent_mode: Option<AutoindentMode>,
397 workspace: Option<(WeakView<Workspace>, i64)>,
398 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
399 input_enabled: bool,
400 read_only: bool,
401 leader_peer_id: Option<PeerId>,
402 remote_id: Option<ViewId>,
403 hover_state: HoverState,
404 gutter_hovered: bool,
405 link_go_to_definition_state: LinkGoToDefinitionState,
406 copilot_state: CopilotState,
407 inlay_hint_cache: InlayHintCache,
408 next_inlay_id: usize,
409 _subscriptions: Vec<Subscription>,
410 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
411 gutter_width: Pixels,
412 style: Option<EditorStyle>,
413 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
414 show_copilot_suggestions: bool,
415 use_autoclose: bool,
416 custom_context_menu: Option<
417 Box<
418 dyn 'static
419 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
420 >,
421 >,
422}
423
424pub struct EditorSnapshot {
425 pub mode: EditorMode,
426 show_gutter: bool,
427 pub display_snapshot: DisplaySnapshot,
428 pub placeholder_text: Option<Arc<str>>,
429 is_focused: bool,
430 scroll_anchor: ScrollAnchor,
431 ongoing_scroll: OngoingScroll,
432}
433
434pub struct GutterDimensions {
435 pub padding: Pixels,
436 pub width: Pixels,
437 pub margin: Pixels,
438}
439
440impl Default for GutterDimensions {
441 fn default() -> Self {
442 Self {
443 padding: Pixels::ZERO,
444 width: Pixels::ZERO,
445 margin: Pixels::ZERO,
446 }
447 }
448}
449
450#[derive(Debug)]
451pub struct RemoteSelection {
452 pub replica_id: ReplicaId,
453 pub selection: Selection<Anchor>,
454 pub cursor_shape: CursorShape,
455 pub peer_id: PeerId,
456 pub line_mode: bool,
457 pub participant_index: Option<ParticipantIndex>,
458 pub user_name: Option<SharedString>,
459}
460
461#[derive(Clone, Debug)]
462struct SelectionHistoryEntry {
463 selections: Arc<[Selection<Anchor>]>,
464 select_next_state: Option<SelectNextState>,
465 select_prev_state: Option<SelectNextState>,
466 add_selections_state: Option<AddSelectionsState>,
467}
468
469enum SelectionHistoryMode {
470 Normal,
471 Undoing,
472 Redoing,
473}
474
475#[derive(Clone, PartialEq, Eq, Hash)]
476struct HoveredCursor {
477 replica_id: u16,
478 selection_id: usize,
479}
480
481impl Default for SelectionHistoryMode {
482 fn default() -> Self {
483 Self::Normal
484 }
485}
486
487#[derive(Default)]
488struct SelectionHistory {
489 #[allow(clippy::type_complexity)]
490 selections_by_transaction:
491 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
492 mode: SelectionHistoryMode,
493 undo_stack: VecDeque<SelectionHistoryEntry>,
494 redo_stack: VecDeque<SelectionHistoryEntry>,
495}
496
497impl SelectionHistory {
498 fn insert_transaction(
499 &mut self,
500 transaction_id: TransactionId,
501 selections: Arc<[Selection<Anchor>]>,
502 ) {
503 self.selections_by_transaction
504 .insert(transaction_id, (selections, None));
505 }
506
507 #[allow(clippy::type_complexity)]
508 fn transaction(
509 &self,
510 transaction_id: TransactionId,
511 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
512 self.selections_by_transaction.get(&transaction_id)
513 }
514
515 #[allow(clippy::type_complexity)]
516 fn transaction_mut(
517 &mut self,
518 transaction_id: TransactionId,
519 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
520 self.selections_by_transaction.get_mut(&transaction_id)
521 }
522
523 fn push(&mut self, entry: SelectionHistoryEntry) {
524 if !entry.selections.is_empty() {
525 match self.mode {
526 SelectionHistoryMode::Normal => {
527 self.push_undo(entry);
528 self.redo_stack.clear();
529 }
530 SelectionHistoryMode::Undoing => self.push_redo(entry),
531 SelectionHistoryMode::Redoing => self.push_undo(entry),
532 }
533 }
534 }
535
536 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
537 if self
538 .undo_stack
539 .back()
540 .map_or(true, |e| e.selections != entry.selections)
541 {
542 self.undo_stack.push_back(entry);
543 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
544 self.undo_stack.pop_front();
545 }
546 }
547 }
548
549 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
550 if self
551 .redo_stack
552 .back()
553 .map_or(true, |e| e.selections != entry.selections)
554 {
555 self.redo_stack.push_back(entry);
556 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
557 self.redo_stack.pop_front();
558 }
559 }
560 }
561}
562
563#[derive(Clone, Debug)]
564struct AddSelectionsState {
565 above: bool,
566 stack: Vec<usize>,
567}
568
569#[derive(Clone)]
570struct SelectNextState {
571 query: AhoCorasick,
572 wordwise: bool,
573 done: bool,
574}
575
576impl std::fmt::Debug for SelectNextState {
577 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
578 f.debug_struct(std::any::type_name::<Self>())
579 .field("wordwise", &self.wordwise)
580 .field("done", &self.done)
581 .finish()
582 }
583}
584
585#[derive(Debug)]
586struct AutocloseRegion {
587 selection_id: usize,
588 range: Range<Anchor>,
589 pair: BracketPair,
590}
591
592#[derive(Debug)]
593struct SnippetState {
594 ranges: Vec<Vec<Range<Anchor>>>,
595 active_index: usize,
596}
597
598#[doc(hidden)]
599pub struct RenameState {
600 pub range: Range<Anchor>,
601 pub old_name: Arc<str>,
602 pub editor: View<Editor>,
603 block_id: BlockId,
604}
605
606struct InvalidationStack<T>(Vec<T>);
607
608enum ContextMenu {
609 Completions(CompletionsMenu),
610 CodeActions(CodeActionsMenu),
611}
612
613impl ContextMenu {
614 fn select_first(
615 &mut self,
616 project: Option<&Model<Project>>,
617 cx: &mut ViewContext<Editor>,
618 ) -> bool {
619 if self.visible() {
620 match self {
621 ContextMenu::Completions(menu) => menu.select_first(project, cx),
622 ContextMenu::CodeActions(menu) => menu.select_first(cx),
623 }
624 true
625 } else {
626 false
627 }
628 }
629
630 fn select_prev(
631 &mut self,
632 project: Option<&Model<Project>>,
633 cx: &mut ViewContext<Editor>,
634 ) -> bool {
635 if self.visible() {
636 match self {
637 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
638 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
639 }
640 true
641 } else {
642 false
643 }
644 }
645
646 fn select_next(
647 &mut self,
648 project: Option<&Model<Project>>,
649 cx: &mut ViewContext<Editor>,
650 ) -> bool {
651 if self.visible() {
652 match self {
653 ContextMenu::Completions(menu) => menu.select_next(project, cx),
654 ContextMenu::CodeActions(menu) => menu.select_next(cx),
655 }
656 true
657 } else {
658 false
659 }
660 }
661
662 fn select_last(
663 &mut self,
664 project: Option<&Model<Project>>,
665 cx: &mut ViewContext<Editor>,
666 ) -> bool {
667 if self.visible() {
668 match self {
669 ContextMenu::Completions(menu) => menu.select_last(project, cx),
670 ContextMenu::CodeActions(menu) => menu.select_last(cx),
671 }
672 true
673 } else {
674 false
675 }
676 }
677
678 fn visible(&self) -> bool {
679 match self {
680 ContextMenu::Completions(menu) => menu.visible(),
681 ContextMenu::CodeActions(menu) => menu.visible(),
682 }
683 }
684
685 fn render(
686 &self,
687 cursor_position: DisplayPoint,
688 style: &EditorStyle,
689 max_height: Pixels,
690 workspace: Option<WeakView<Workspace>>,
691 cx: &mut ViewContext<Editor>,
692 ) -> (DisplayPoint, AnyElement) {
693 match self {
694 ContextMenu::Completions(menu) => (
695 cursor_position,
696 menu.render(style, max_height, workspace, cx),
697 ),
698 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
699 }
700 }
701}
702
703#[derive(Clone)]
704struct CompletionsMenu {
705 id: CompletionId,
706 initial_position: Anchor,
707 buffer: Model<Buffer>,
708 completions: Arc<RwLock<Box<[Completion]>>>,
709 match_candidates: Arc<[StringMatchCandidate]>,
710 matches: Arc<[StringMatch]>,
711 selected_item: usize,
712 scroll_handle: UniformListScrollHandle,
713 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
714}
715
716impl CompletionsMenu {
717 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
718 self.selected_item = 0;
719 self.scroll_handle.scroll_to_item(self.selected_item);
720 self.attempt_resolve_selected_completion_documentation(project, cx);
721 cx.notify();
722 }
723
724 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
725 if self.selected_item > 0 {
726 self.selected_item -= 1;
727 } else {
728 self.selected_item = self.matches.len() - 1;
729 }
730 self.scroll_handle.scroll_to_item(self.selected_item);
731 self.attempt_resolve_selected_completion_documentation(project, cx);
732 cx.notify();
733 }
734
735 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
736 if self.selected_item + 1 < self.matches.len() {
737 self.selected_item += 1;
738 } else {
739 self.selected_item = 0;
740 }
741 self.scroll_handle.scroll_to_item(self.selected_item);
742 self.attempt_resolve_selected_completion_documentation(project, cx);
743 cx.notify();
744 }
745
746 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
747 self.selected_item = self.matches.len() - 1;
748 self.scroll_handle.scroll_to_item(self.selected_item);
749 self.attempt_resolve_selected_completion_documentation(project, cx);
750 cx.notify();
751 }
752
753 fn pre_resolve_completion_documentation(
754 completions: Arc<RwLock<Box<[Completion]>>>,
755 matches: Arc<[StringMatch]>,
756 editor: &Editor,
757 cx: &mut ViewContext<Editor>,
758 ) -> Task<()> {
759 let settings = EditorSettings::get_global(cx);
760 if !settings.show_completion_documentation {
761 return Task::ready(());
762 }
763
764 let Some(provider) = editor.completion_provider.as_ref() else {
765 return Task::ready(());
766 };
767
768 let resolve_task = provider.resolve_completions(
769 matches.iter().map(|m| m.candidate_id).collect(),
770 completions.clone(),
771 cx,
772 );
773
774 return cx.spawn(move |this, mut cx| async move {
775 if let Some(true) = resolve_task.await.log_err() {
776 this.update(&mut cx, |_, cx| cx.notify()).ok();
777 }
778 });
779 }
780
781 fn attempt_resolve_selected_completion_documentation(
782 &mut self,
783 project: Option<&Model<Project>>,
784 cx: &mut ViewContext<Editor>,
785 ) {
786 let settings = EditorSettings::get_global(cx);
787 if !settings.show_completion_documentation {
788 return;
789 }
790
791 let completion_index = self.matches[self.selected_item].candidate_id;
792 let Some(project) = project else {
793 return;
794 };
795
796 let resolve_task = project.update(cx, |project, cx| {
797 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
798 });
799
800 let delay_ms =
801 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
802 let delay = Duration::from_millis(delay_ms);
803
804 self.selected_completion_documentation_resolve_debounce
805 .lock()
806 .fire_new(delay, cx, |_, cx| {
807 cx.spawn(move |this, mut cx| async move {
808 if let Some(true) = resolve_task.await.log_err() {
809 this.update(&mut cx, |_, cx| cx.notify()).ok();
810 }
811 })
812 });
813 }
814
815 fn visible(&self) -> bool {
816 !self.matches.is_empty()
817 }
818
819 fn render(
820 &self,
821 style: &EditorStyle,
822 max_height: Pixels,
823 workspace: Option<WeakView<Workspace>>,
824 cx: &mut ViewContext<Editor>,
825 ) -> AnyElement {
826 let settings = EditorSettings::get_global(cx);
827 let show_completion_documentation = settings.show_completion_documentation;
828
829 let widest_completion_ix = self
830 .matches
831 .iter()
832 .enumerate()
833 .max_by_key(|(_, mat)| {
834 let completions = self.completions.read();
835 let completion = &completions[mat.candidate_id];
836 let documentation = &completion.documentation;
837
838 let mut len = completion.label.text.chars().count();
839 if let Some(Documentation::SingleLine(text)) = documentation {
840 if show_completion_documentation {
841 len += text.chars().count();
842 }
843 }
844
845 len
846 })
847 .map(|(ix, _)| ix);
848
849 let completions = self.completions.clone();
850 let matches = self.matches.clone();
851 let selected_item = self.selected_item;
852 let style = style.clone();
853
854 let multiline_docs = {
855 let mat = &self.matches[selected_item];
856 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
857 Some(Documentation::MultiLinePlainText(text)) => {
858 Some(div().child(SharedString::from(text.clone())))
859 }
860 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
861 Some(div().child(render_parsed_markdown(
862 "completions_markdown",
863 parsed,
864 &style,
865 workspace,
866 cx,
867 )))
868 }
869 _ => None,
870 };
871 multiline_docs.map(|div| {
872 div.id("multiline_docs")
873 .max_h(max_height)
874 .flex_1()
875 .px_1p5()
876 .py_1()
877 .min_w(px(260.))
878 .max_w(px(640.))
879 .w(px(500.))
880 .overflow_y_scroll()
881 // Prevent a mouse down on documentation from being propagated to the editor,
882 // because that would move the cursor.
883 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
884 })
885 };
886
887 let list = uniform_list(
888 cx.view().clone(),
889 "completions",
890 matches.len(),
891 move |_editor, range, cx| {
892 let start_ix = range.start;
893 let completions_guard = completions.read();
894
895 matches[range]
896 .iter()
897 .enumerate()
898 .map(|(ix, mat)| {
899 let item_ix = start_ix + ix;
900 let candidate_id = mat.candidate_id;
901 let completion = &completions_guard[candidate_id];
902
903 let documentation = if show_completion_documentation {
904 &completion.documentation
905 } else {
906 &None
907 };
908
909 let highlights = gpui::combine_highlights(
910 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
911 styled_runs_for_code_label(&completion.label, &style.syntax).map(
912 |(range, mut highlight)| {
913 // Ignore font weight for syntax highlighting, as we'll use it
914 // for fuzzy matches.
915 highlight.font_weight = None;
916 (range, highlight)
917 },
918 ),
919 );
920 let completion_label = StyledText::new(completion.label.text.clone())
921 .with_highlights(&style.text, highlights);
922 let documentation_label =
923 if let Some(Documentation::SingleLine(text)) = documentation {
924 if text.trim().is_empty() {
925 None
926 } else {
927 Some(
928 h_flex().ml_4().child(
929 Label::new(text.clone())
930 .size(LabelSize::Small)
931 .color(Color::Muted),
932 ),
933 )
934 }
935 } else {
936 None
937 };
938
939 div().min_w(px(220.)).max_w(px(540.)).child(
940 ListItem::new(mat.candidate_id)
941 .inset(true)
942 .selected(item_ix == selected_item)
943 .on_click(cx.listener(move |editor, _event, cx| {
944 cx.stop_propagation();
945 editor
946 .confirm_completion(
947 &ConfirmCompletion {
948 item_ix: Some(item_ix),
949 },
950 cx,
951 )
952 .map(|task| task.detach_and_log_err(cx));
953 }))
954 .child(h_flex().overflow_hidden().child(completion_label))
955 .end_slot::<Div>(documentation_label),
956 )
957 })
958 .collect()
959 },
960 )
961 .max_h(max_height)
962 .track_scroll(self.scroll_handle.clone())
963 .with_width_from_item(widest_completion_ix);
964
965 Popover::new()
966 .child(list)
967 .when_some(multiline_docs, |popover, multiline_docs| {
968 popover.aside(multiline_docs)
969 })
970 .into_any_element()
971 }
972
973 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
974 let mut matches = if let Some(query) = query {
975 fuzzy::match_strings(
976 &self.match_candidates,
977 query,
978 query.chars().any(|c| c.is_uppercase()),
979 100,
980 &Default::default(),
981 executor,
982 )
983 .await
984 } else {
985 self.match_candidates
986 .iter()
987 .enumerate()
988 .map(|(candidate_id, candidate)| StringMatch {
989 candidate_id,
990 score: Default::default(),
991 positions: Default::default(),
992 string: candidate.string.clone(),
993 })
994 .collect()
995 };
996
997 // Remove all candidates where the query's start does not match the start of any word in the candidate
998 if let Some(query) = query {
999 if let Some(query_start) = query.chars().next() {
1000 matches.retain(|string_match| {
1001 split_words(&string_match.string).any(|word| {
1002 // Check that the first codepoint of the word as lowercase matches the first
1003 // codepoint of the query as lowercase
1004 word.chars()
1005 .flat_map(|codepoint| codepoint.to_lowercase())
1006 .zip(query_start.to_lowercase())
1007 .all(|(word_cp, query_cp)| word_cp == query_cp)
1008 })
1009 });
1010 }
1011 }
1012
1013 let completions = self.completions.read();
1014 matches.sort_unstable_by_key(|mat| {
1015 let completion = &completions[mat.candidate_id];
1016 (
1017 completion.lsp_completion.sort_text.as_ref(),
1018 Reverse(OrderedFloat(mat.score)),
1019 completion.sort_key(),
1020 )
1021 });
1022
1023 for mat in &mut matches {
1024 let completion = &completions[mat.candidate_id];
1025 mat.string = completion.label.text.clone();
1026 for position in &mut mat.positions {
1027 *position += completion.label.filter_range.start;
1028 }
1029 }
1030 drop(completions);
1031
1032 self.matches = matches.into();
1033 self.selected_item = 0;
1034 }
1035}
1036
1037#[derive(Clone)]
1038struct CodeActionsMenu {
1039 actions: Arc<[CodeAction]>,
1040 buffer: Model<Buffer>,
1041 selected_item: usize,
1042 scroll_handle: UniformListScrollHandle,
1043 deployed_from_indicator: bool,
1044}
1045
1046impl CodeActionsMenu {
1047 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1048 self.selected_item = 0;
1049 self.scroll_handle.scroll_to_item(self.selected_item);
1050 cx.notify()
1051 }
1052
1053 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1054 if self.selected_item > 0 {
1055 self.selected_item -= 1;
1056 } else {
1057 self.selected_item = self.actions.len() - 1;
1058 }
1059 self.scroll_handle.scroll_to_item(self.selected_item);
1060 cx.notify();
1061 }
1062
1063 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1064 if self.selected_item + 1 < self.actions.len() {
1065 self.selected_item += 1;
1066 } else {
1067 self.selected_item = 0;
1068 }
1069 self.scroll_handle.scroll_to_item(self.selected_item);
1070 cx.notify();
1071 }
1072
1073 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1074 self.selected_item = self.actions.len() - 1;
1075 self.scroll_handle.scroll_to_item(self.selected_item);
1076 cx.notify()
1077 }
1078
1079 fn visible(&self) -> bool {
1080 !self.actions.is_empty()
1081 }
1082
1083 fn render(
1084 &self,
1085 mut cursor_position: DisplayPoint,
1086 _style: &EditorStyle,
1087 max_height: Pixels,
1088 cx: &mut ViewContext<Editor>,
1089 ) -> (DisplayPoint, AnyElement) {
1090 let actions = self.actions.clone();
1091 let selected_item = self.selected_item;
1092
1093 let element = uniform_list(
1094 cx.view().clone(),
1095 "code_actions_menu",
1096 self.actions.len(),
1097 move |_this, range, cx| {
1098 actions[range.clone()]
1099 .iter()
1100 .enumerate()
1101 .map(|(ix, action)| {
1102 let item_ix = range.start + ix;
1103 let selected = selected_item == item_ix;
1104 let colors = cx.theme().colors();
1105 div()
1106 .px_2()
1107 .text_color(colors.text)
1108 .when(selected, |style| {
1109 style
1110 .bg(colors.element_active)
1111 .text_color(colors.text_accent)
1112 })
1113 .hover(|style| {
1114 style
1115 .bg(colors.element_hover)
1116 .text_color(colors.text_accent)
1117 })
1118 .on_mouse_down(
1119 MouseButton::Left,
1120 cx.listener(move |editor, _, cx| {
1121 cx.stop_propagation();
1122 editor
1123 .confirm_code_action(
1124 &ConfirmCodeAction {
1125 item_ix: Some(item_ix),
1126 },
1127 cx,
1128 )
1129 .map(|task| task.detach_and_log_err(cx));
1130 }),
1131 )
1132 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1133 .child(SharedString::from(action.lsp_action.title.clone()))
1134 })
1135 .collect()
1136 },
1137 )
1138 .elevation_1(cx)
1139 .px_2()
1140 .py_1()
1141 .max_h(max_height)
1142 .track_scroll(self.scroll_handle.clone())
1143 .with_width_from_item(
1144 self.actions
1145 .iter()
1146 .enumerate()
1147 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1148 .map(|(ix, _)| ix),
1149 )
1150 .into_any_element();
1151
1152 if self.deployed_from_indicator {
1153 *cursor_position.column_mut() = 0;
1154 }
1155
1156 (cursor_position, element)
1157 }
1158}
1159
1160pub(crate) struct CopilotState {
1161 excerpt_id: Option<ExcerptId>,
1162 pending_refresh: Task<Option<()>>,
1163 pending_cycling_refresh: Task<Option<()>>,
1164 cycled: bool,
1165 completions: Vec<copilot::Completion>,
1166 active_completion_index: usize,
1167 suggestion: Option<Inlay>,
1168}
1169
1170impl Default for CopilotState {
1171 fn default() -> Self {
1172 Self {
1173 excerpt_id: None,
1174 pending_cycling_refresh: Task::ready(Some(())),
1175 pending_refresh: Task::ready(Some(())),
1176 completions: Default::default(),
1177 active_completion_index: 0,
1178 cycled: false,
1179 suggestion: None,
1180 }
1181 }
1182}
1183
1184impl CopilotState {
1185 fn active_completion(&self) -> Option<&copilot::Completion> {
1186 self.completions.get(self.active_completion_index)
1187 }
1188
1189 fn text_for_active_completion(
1190 &self,
1191 cursor: Anchor,
1192 buffer: &MultiBufferSnapshot,
1193 ) -> Option<&str> {
1194 use language::ToOffset as _;
1195
1196 let completion = self.active_completion()?;
1197 let excerpt_id = self.excerpt_id?;
1198 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1199 if excerpt_id != cursor.excerpt_id
1200 || !completion.range.start.is_valid(completion_buffer)
1201 || !completion.range.end.is_valid(completion_buffer)
1202 {
1203 return None;
1204 }
1205
1206 let mut completion_range = completion.range.to_offset(&completion_buffer);
1207 let prefix_len = Self::common_prefix(
1208 completion_buffer.chars_for_range(completion_range.clone()),
1209 completion.text.chars(),
1210 );
1211 completion_range.start += prefix_len;
1212 let suffix_len = Self::common_prefix(
1213 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1214 completion.text[prefix_len..].chars().rev(),
1215 );
1216 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1217
1218 if completion_range.is_empty()
1219 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1220 {
1221 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1222 } else {
1223 None
1224 }
1225 }
1226
1227 fn cycle_completions(&mut self, direction: Direction) {
1228 match direction {
1229 Direction::Prev => {
1230 self.active_completion_index = if self.active_completion_index == 0 {
1231 self.completions.len().saturating_sub(1)
1232 } else {
1233 self.active_completion_index - 1
1234 };
1235 }
1236 Direction::Next => {
1237 if self.completions.len() == 0 {
1238 self.active_completion_index = 0
1239 } else {
1240 self.active_completion_index =
1241 (self.active_completion_index + 1) % self.completions.len();
1242 }
1243 }
1244 }
1245 }
1246
1247 fn push_completion(&mut self, new_completion: copilot::Completion) {
1248 for completion in &self.completions {
1249 if completion.text == new_completion.text && completion.range == new_completion.range {
1250 return;
1251 }
1252 }
1253 self.completions.push(new_completion);
1254 }
1255
1256 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1257 a.zip(b)
1258 .take_while(|(a, b)| a == b)
1259 .map(|(a, _)| a.len_utf8())
1260 .sum()
1261 }
1262}
1263
1264#[derive(Debug)]
1265struct ActiveDiagnosticGroup {
1266 primary_range: Range<Anchor>,
1267 primary_message: String,
1268 blocks: HashMap<BlockId, Diagnostic>,
1269 is_valid: bool,
1270}
1271
1272#[derive(Serialize, Deserialize)]
1273pub struct ClipboardSelection {
1274 pub len: usize,
1275 pub is_entire_line: bool,
1276 pub first_line_indent: u32,
1277}
1278
1279#[derive(Debug)]
1280pub(crate) struct NavigationData {
1281 cursor_anchor: Anchor,
1282 cursor_position: Point,
1283 scroll_anchor: ScrollAnchor,
1284 scroll_top_row: u32,
1285}
1286
1287enum GotoDefinitionKind {
1288 Symbol,
1289 Type,
1290}
1291
1292#[derive(Debug, Clone)]
1293enum InlayHintRefreshReason {
1294 Toggle(bool),
1295 SettingsChange(InlayHintSettings),
1296 NewLinesShown,
1297 BufferEdited(HashSet<Arc<Language>>),
1298 RefreshRequested,
1299 ExcerptsRemoved(Vec<ExcerptId>),
1300}
1301impl InlayHintRefreshReason {
1302 fn description(&self) -> &'static str {
1303 match self {
1304 Self::Toggle(_) => "toggle",
1305 Self::SettingsChange(_) => "settings change",
1306 Self::NewLinesShown => "new lines shown",
1307 Self::BufferEdited(_) => "buffer edited",
1308 Self::RefreshRequested => "refresh requested",
1309 Self::ExcerptsRemoved(_) => "excerpts removed",
1310 }
1311 }
1312}
1313
1314impl Editor {
1315 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1316 let buffer = cx.new_model(|cx| {
1317 Buffer::new(
1318 0,
1319 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1320 String::new(),
1321 )
1322 });
1323 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1324 Self::new(EditorMode::SingleLine, buffer, None, cx)
1325 }
1326
1327 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1328 let buffer = cx.new_model(|cx| {
1329 Buffer::new(
1330 0,
1331 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1332 String::new(),
1333 )
1334 });
1335 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1336 Self::new(EditorMode::Full, buffer, None, cx)
1337 }
1338
1339 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1340 let buffer = cx.new_model(|cx| {
1341 Buffer::new(
1342 0,
1343 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1344 String::new(),
1345 )
1346 });
1347 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1348 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1349 }
1350
1351 pub fn for_buffer(
1352 buffer: Model<Buffer>,
1353 project: Option<Model<Project>>,
1354 cx: &mut ViewContext<Self>,
1355 ) -> Self {
1356 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1357 Self::new(EditorMode::Full, buffer, project, cx)
1358 }
1359
1360 pub fn for_multibuffer(
1361 buffer: Model<MultiBuffer>,
1362 project: Option<Model<Project>>,
1363 cx: &mut ViewContext<Self>,
1364 ) -> Self {
1365 Self::new(EditorMode::Full, buffer, project, cx)
1366 }
1367
1368 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1369 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1370 self.display_map.update(cx, |display_map, cx| {
1371 let snapshot = display_map.snapshot(cx);
1372 clone.display_map.update(cx, |display_map, cx| {
1373 display_map.set_state(&snapshot, cx);
1374 });
1375 });
1376 clone.selections.clone_state(&self.selections);
1377 clone.scroll_manager.clone_state(&self.scroll_manager);
1378 clone.searchable = self.searchable;
1379 clone
1380 }
1381
1382 fn new(
1383 mode: EditorMode,
1384 buffer: Model<MultiBuffer>,
1385 project: Option<Model<Project>>,
1386 cx: &mut ViewContext<Self>,
1387 ) -> Self {
1388 let style = cx.text_style();
1389 let font_size = style.font_size.to_pixels(cx.rem_size());
1390 let display_map = cx.new_model(|cx| {
1391 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1392 });
1393
1394 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1395
1396 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1397
1398 let soft_wrap_mode_override =
1399 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1400
1401 let mut project_subscriptions = Vec::new();
1402 if mode == EditorMode::Full {
1403 if let Some(project) = project.as_ref() {
1404 if buffer.read(cx).is_singleton() {
1405 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1406 cx.emit(EditorEvent::TitleChanged);
1407 }));
1408 }
1409 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1410 if let project::Event::RefreshInlayHints = event {
1411 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1412 };
1413 }));
1414 }
1415 }
1416
1417 let inlay_hint_settings = inlay_hint_settings(
1418 selections.newest_anchor().head(),
1419 &buffer.read(cx).snapshot(cx),
1420 cx,
1421 );
1422
1423 let focus_handle = cx.focus_handle();
1424 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1425 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1426
1427 let mut this = Self {
1428 handle: cx.view().downgrade(),
1429 focus_handle,
1430 buffer: buffer.clone(),
1431 display_map: display_map.clone(),
1432 selections,
1433 scroll_manager: ScrollManager::new(),
1434 columnar_selection_tail: None,
1435 add_selections_state: None,
1436 select_next_state: None,
1437 select_prev_state: None,
1438 selection_history: Default::default(),
1439 autoclose_regions: Default::default(),
1440 snippet_stack: Default::default(),
1441 select_larger_syntax_node_stack: Vec::new(),
1442 ime_transaction: Default::default(),
1443 active_diagnostics: None,
1444 soft_wrap_mode_override,
1445 completion_provider: project.clone().map(|project| Box::new(project) as _),
1446 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1447 project,
1448 blink_manager: blink_manager.clone(),
1449 show_local_selections: true,
1450 mode,
1451 show_gutter: mode == EditorMode::Full,
1452 show_wrap_guides: None,
1453 placeholder_text: None,
1454 highlighted_rows: None,
1455 background_highlights: Default::default(),
1456 inlay_background_highlights: Default::default(),
1457 nav_history: None,
1458 context_menu: RwLock::new(None),
1459 mouse_context_menu: None,
1460 completion_tasks: Default::default(),
1461 next_completion_id: 0,
1462 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1463 next_inlay_id: 0,
1464 available_code_actions: Default::default(),
1465 code_actions_task: Default::default(),
1466 document_highlights_task: Default::default(),
1467 pending_rename: Default::default(),
1468 searchable: true,
1469 cursor_shape: Default::default(),
1470 autoindent_mode: Some(AutoindentMode::EachLine),
1471 collapse_matches: false,
1472 workspace: None,
1473 keymap_context_layers: Default::default(),
1474 input_enabled: true,
1475 read_only: false,
1476 use_autoclose: true,
1477 leader_peer_id: None,
1478 remote_id: None,
1479 hover_state: Default::default(),
1480 link_go_to_definition_state: Default::default(),
1481 copilot_state: Default::default(),
1482 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1483 gutter_hovered: false,
1484 pixel_position_of_newest_cursor: None,
1485 gutter_width: Default::default(),
1486 style: None,
1487 show_cursor_names: false,
1488 hovered_cursors: Default::default(),
1489 editor_actions: Default::default(),
1490 show_copilot_suggestions: mode == EditorMode::Full,
1491 custom_context_menu: None,
1492 _subscriptions: vec![
1493 cx.observe(&buffer, Self::on_buffer_changed),
1494 cx.subscribe(&buffer, Self::on_buffer_event),
1495 cx.observe(&display_map, Self::on_display_map_changed),
1496 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1497 cx.observe_global::<SettingsStore>(Self::settings_changed),
1498 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1499 cx.observe_window_activation(|editor, cx| {
1500 let active = cx.is_window_active();
1501 editor.blink_manager.update(cx, |blink_manager, cx| {
1502 if active {
1503 blink_manager.enable(cx);
1504 } else {
1505 blink_manager.show_cursor(cx);
1506 blink_manager.disable(cx);
1507 }
1508 });
1509 }),
1510 ],
1511 };
1512
1513 this._subscriptions.extend(project_subscriptions);
1514
1515 this.end_selection(cx);
1516 this.scroll_manager.show_scrollbar(cx);
1517
1518 if mode == EditorMode::Full {
1519 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1520 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1521 }
1522
1523 this.report_editor_event("open", None, cx);
1524 this
1525 }
1526
1527 fn key_context(&self, cx: &AppContext) -> KeyContext {
1528 let mut key_context = KeyContext::default();
1529 key_context.add("Editor");
1530 let mode = match self.mode {
1531 EditorMode::SingleLine => "single_line",
1532 EditorMode::AutoHeight { .. } => "auto_height",
1533 EditorMode::Full => "full",
1534 };
1535 key_context.set("mode", mode);
1536 if self.pending_rename.is_some() {
1537 key_context.add("renaming");
1538 }
1539 if self.context_menu_visible() {
1540 match self.context_menu.read().as_ref() {
1541 Some(ContextMenu::Completions(_)) => {
1542 key_context.add("menu");
1543 key_context.add("showing_completions")
1544 }
1545 Some(ContextMenu::CodeActions(_)) => {
1546 key_context.add("menu");
1547 key_context.add("showing_code_actions")
1548 }
1549 None => {}
1550 }
1551 }
1552
1553 for layer in self.keymap_context_layers.values() {
1554 key_context.extend(layer);
1555 }
1556
1557 if let Some(extension) = self
1558 .buffer
1559 .read(cx)
1560 .as_singleton()
1561 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1562 {
1563 key_context.set("extension", extension.to_string());
1564 }
1565
1566 key_context
1567 }
1568
1569 pub fn new_file(
1570 workspace: &mut Workspace,
1571 _: &workspace::NewFile,
1572 cx: &mut ViewContext<Workspace>,
1573 ) {
1574 let project = workspace.project().clone();
1575 if project.read(cx).is_remote() {
1576 cx.propagate();
1577 } else if let Some(buffer) = project
1578 .update(cx, |project, cx| project.create_buffer("", None, cx))
1579 .log_err()
1580 {
1581 workspace.add_item(
1582 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1583 cx,
1584 );
1585 }
1586 }
1587
1588 pub fn new_file_in_direction(
1589 workspace: &mut Workspace,
1590 action: &workspace::NewFileInDirection,
1591 cx: &mut ViewContext<Workspace>,
1592 ) {
1593 let project = workspace.project().clone();
1594 if project.read(cx).is_remote() {
1595 cx.propagate();
1596 } else if let Some(buffer) = project
1597 .update(cx, |project, cx| project.create_buffer("", None, cx))
1598 .log_err()
1599 {
1600 workspace.split_item(
1601 action.0,
1602 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1603 cx,
1604 );
1605 }
1606 }
1607
1608 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1609 self.buffer.read(cx).replica_id()
1610 }
1611
1612 pub fn leader_peer_id(&self) -> Option<PeerId> {
1613 self.leader_peer_id
1614 }
1615
1616 pub fn buffer(&self) -> &Model<MultiBuffer> {
1617 &self.buffer
1618 }
1619
1620 pub fn workspace(&self) -> Option<View<Workspace>> {
1621 self.workspace.as_ref()?.0.upgrade()
1622 }
1623
1624 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1625 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1626 }
1627
1628 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1629 self.buffer().read(cx).title(cx)
1630 }
1631
1632 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1633 EditorSnapshot {
1634 mode: self.mode,
1635 show_gutter: self.show_gutter,
1636 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1637 scroll_anchor: self.scroll_manager.anchor(),
1638 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1639 placeholder_text: self.placeholder_text.clone(),
1640 is_focused: self.focus_handle.is_focused(cx),
1641 }
1642 }
1643
1644 pub fn language_at<'a, T: ToOffset>(
1645 &self,
1646 point: T,
1647 cx: &'a AppContext,
1648 ) -> Option<Arc<Language>> {
1649 self.buffer.read(cx).language_at(point, cx)
1650 }
1651
1652 pub fn file_at<'a, T: ToOffset>(
1653 &self,
1654 point: T,
1655 cx: &'a AppContext,
1656 ) -> Option<Arc<dyn language::File>> {
1657 self.buffer.read(cx).read(cx).file_at(point).cloned()
1658 }
1659
1660 pub fn active_excerpt(
1661 &self,
1662 cx: &AppContext,
1663 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1664 self.buffer
1665 .read(cx)
1666 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1667 }
1668
1669 pub fn mode(&self) -> EditorMode {
1670 self.mode
1671 }
1672
1673 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1674 self.collaboration_hub.as_deref()
1675 }
1676
1677 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1678 self.collaboration_hub = Some(hub);
1679 }
1680
1681 pub fn set_custom_context_menu(
1682 &mut self,
1683 f: impl 'static
1684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1685 ) {
1686 self.custom_context_menu = Some(Box::new(f))
1687 }
1688
1689 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1690 self.completion_provider = Some(hub);
1691 }
1692
1693 pub fn placeholder_text(&self) -> Option<&str> {
1694 self.placeholder_text.as_deref()
1695 }
1696
1697 pub fn set_placeholder_text(
1698 &mut self,
1699 placeholder_text: impl Into<Arc<str>>,
1700 cx: &mut ViewContext<Self>,
1701 ) {
1702 let placeholder_text = Some(placeholder_text.into());
1703 if self.placeholder_text != placeholder_text {
1704 self.placeholder_text = placeholder_text;
1705 cx.notify();
1706 }
1707 }
1708
1709 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1710 self.cursor_shape = cursor_shape;
1711 cx.notify();
1712 }
1713
1714 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1715 self.collapse_matches = collapse_matches;
1716 }
1717
1718 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1719 if self.collapse_matches {
1720 return range.start..range.start;
1721 }
1722 range.clone()
1723 }
1724
1725 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1726 if self.display_map.read(cx).clip_at_line_ends != clip {
1727 self.display_map
1728 .update(cx, |map, _| map.clip_at_line_ends = clip);
1729 }
1730 }
1731
1732 pub fn set_keymap_context_layer<Tag: 'static>(
1733 &mut self,
1734 context: KeyContext,
1735 cx: &mut ViewContext<Self>,
1736 ) {
1737 self.keymap_context_layers
1738 .insert(TypeId::of::<Tag>(), context);
1739 cx.notify();
1740 }
1741
1742 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1743 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1744 cx.notify();
1745 }
1746
1747 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1748 self.input_enabled = input_enabled;
1749 }
1750
1751 pub fn set_autoindent(&mut self, autoindent: bool) {
1752 if autoindent {
1753 self.autoindent_mode = Some(AutoindentMode::EachLine);
1754 } else {
1755 self.autoindent_mode = None;
1756 }
1757 }
1758
1759 pub fn read_only(&self, cx: &AppContext) -> bool {
1760 self.read_only || self.buffer.read(cx).read_only()
1761 }
1762
1763 pub fn set_read_only(&mut self, read_only: bool) {
1764 self.read_only = read_only;
1765 }
1766
1767 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1768 self.use_autoclose = autoclose;
1769 }
1770
1771 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1772 self.show_copilot_suggestions = show_copilot_suggestions;
1773 }
1774
1775 fn selections_did_change(
1776 &mut self,
1777 local: bool,
1778 old_cursor_position: &Anchor,
1779 cx: &mut ViewContext<Self>,
1780 ) {
1781 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1782 self.buffer.update(cx, |buffer, cx| {
1783 buffer.set_active_selections(
1784 &self.selections.disjoint_anchors(),
1785 self.selections.line_mode,
1786 self.cursor_shape,
1787 cx,
1788 )
1789 });
1790 }
1791
1792 let display_map = self
1793 .display_map
1794 .update(cx, |display_map, cx| display_map.snapshot(cx));
1795 let buffer = &display_map.buffer_snapshot;
1796 self.add_selections_state = None;
1797 self.select_next_state = None;
1798 self.select_prev_state = None;
1799 self.select_larger_syntax_node_stack.clear();
1800 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1801 self.snippet_stack
1802 .invalidate(&self.selections.disjoint_anchors(), buffer);
1803 self.take_rename(false, cx);
1804
1805 let new_cursor_position = self.selections.newest_anchor().head();
1806
1807 self.push_to_nav_history(
1808 old_cursor_position.clone(),
1809 Some(new_cursor_position.to_point(buffer)),
1810 cx,
1811 );
1812
1813 if local {
1814 let new_cursor_position = self.selections.newest_anchor().head();
1815 let mut context_menu = self.context_menu.write();
1816 let completion_menu = match context_menu.as_ref() {
1817 Some(ContextMenu::Completions(menu)) => Some(menu),
1818
1819 _ => {
1820 *context_menu = None;
1821 None
1822 }
1823 };
1824
1825 if let Some(completion_menu) = completion_menu {
1826 let cursor_position = new_cursor_position.to_offset(buffer);
1827 let (word_range, kind) =
1828 buffer.surrounding_word(completion_menu.initial_position.clone());
1829 if kind == Some(CharKind::Word)
1830 && word_range.to_inclusive().contains(&cursor_position)
1831 {
1832 let mut completion_menu = completion_menu.clone();
1833 drop(context_menu);
1834
1835 let query = Self::completion_query(buffer, cursor_position);
1836 cx.spawn(move |this, mut cx| async move {
1837 completion_menu
1838 .filter(query.as_deref(), cx.background_executor().clone())
1839 .await;
1840
1841 this.update(&mut cx, |this, cx| {
1842 let mut context_menu = this.context_menu.write();
1843 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1844 return;
1845 };
1846
1847 if menu.id > completion_menu.id {
1848 return;
1849 }
1850
1851 *context_menu = Some(ContextMenu::Completions(completion_menu));
1852 drop(context_menu);
1853 cx.notify();
1854 })
1855 })
1856 .detach();
1857
1858 self.show_completions(&ShowCompletions, cx);
1859 } else {
1860 drop(context_menu);
1861 self.hide_context_menu(cx);
1862 }
1863 } else {
1864 drop(context_menu);
1865 }
1866
1867 hide_hover(self, cx);
1868
1869 if old_cursor_position.to_display_point(&display_map).row()
1870 != new_cursor_position.to_display_point(&display_map).row()
1871 {
1872 self.available_code_actions.take();
1873 }
1874 self.refresh_code_actions(cx);
1875 self.refresh_document_highlights(cx);
1876 refresh_matching_bracket_highlights(self, cx);
1877 self.discard_copilot_suggestion(cx);
1878 }
1879
1880 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1881 cx.emit(EditorEvent::SelectionsChanged { local });
1882
1883 if self.selections.disjoint_anchors().len() == 1 {
1884 cx.emit(SearchEvent::ActiveMatchChanged)
1885 }
1886
1887 cx.notify();
1888 }
1889
1890 pub fn change_selections<R>(
1891 &mut self,
1892 autoscroll: Option<Autoscroll>,
1893 cx: &mut ViewContext<Self>,
1894 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1895 ) -> R {
1896 let old_cursor_position = self.selections.newest_anchor().head();
1897 self.push_to_selection_history();
1898
1899 let (changed, result) = self.selections.change_with(cx, change);
1900
1901 if changed {
1902 if let Some(autoscroll) = autoscroll {
1903 self.request_autoscroll(autoscroll, cx);
1904 }
1905 self.selections_did_change(true, &old_cursor_position, cx);
1906 }
1907
1908 result
1909 }
1910
1911 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1912 where
1913 I: IntoIterator<Item = (Range<S>, T)>,
1914 S: ToOffset,
1915 T: Into<Arc<str>>,
1916 {
1917 if self.read_only(cx) {
1918 return;
1919 }
1920
1921 self.buffer
1922 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1923 }
1924
1925 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1926 where
1927 I: IntoIterator<Item = (Range<S>, T)>,
1928 S: ToOffset,
1929 T: Into<Arc<str>>,
1930 {
1931 if self.read_only(cx) {
1932 return;
1933 }
1934
1935 self.buffer.update(cx, |buffer, cx| {
1936 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1937 });
1938 }
1939
1940 pub fn edit_with_block_indent<I, S, T>(
1941 &mut self,
1942 edits: I,
1943 original_indent_columns: Vec<u32>,
1944 cx: &mut ViewContext<Self>,
1945 ) where
1946 I: IntoIterator<Item = (Range<S>, T)>,
1947 S: ToOffset,
1948 T: Into<Arc<str>>,
1949 {
1950 if self.read_only(cx) {
1951 return;
1952 }
1953
1954 self.buffer.update(cx, |buffer, cx| {
1955 buffer.edit(
1956 edits,
1957 Some(AutoindentMode::Block {
1958 original_indent_columns,
1959 }),
1960 cx,
1961 )
1962 });
1963 }
1964
1965 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1966 self.hide_context_menu(cx);
1967
1968 match phase {
1969 SelectPhase::Begin {
1970 position,
1971 add,
1972 click_count,
1973 } => self.begin_selection(position, add, click_count, cx),
1974 SelectPhase::BeginColumnar {
1975 position,
1976 goal_column,
1977 } => self.begin_columnar_selection(position, goal_column, cx),
1978 SelectPhase::Extend {
1979 position,
1980 click_count,
1981 } => self.extend_selection(position, click_count, cx),
1982 SelectPhase::Update {
1983 position,
1984 goal_column,
1985 scroll_delta,
1986 } => self.update_selection(position, goal_column, scroll_delta, cx),
1987 SelectPhase::End => self.end_selection(cx),
1988 }
1989 }
1990
1991 fn extend_selection(
1992 &mut self,
1993 position: DisplayPoint,
1994 click_count: usize,
1995 cx: &mut ViewContext<Self>,
1996 ) {
1997 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1998 let tail = self.selections.newest::<usize>(cx).tail();
1999 self.begin_selection(position, false, click_count, cx);
2000
2001 let position = position.to_offset(&display_map, Bias::Left);
2002 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2003
2004 let mut pending_selection = self
2005 .selections
2006 .pending_anchor()
2007 .expect("extend_selection not called with pending selection");
2008 if position >= tail {
2009 pending_selection.start = tail_anchor;
2010 } else {
2011 pending_selection.end = tail_anchor;
2012 pending_selection.reversed = true;
2013 }
2014
2015 let mut pending_mode = self.selections.pending_mode().unwrap();
2016 match &mut pending_mode {
2017 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2018 _ => {}
2019 }
2020
2021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2022 s.set_pending(pending_selection, pending_mode)
2023 });
2024 }
2025
2026 fn begin_selection(
2027 &mut self,
2028 position: DisplayPoint,
2029 add: bool,
2030 click_count: usize,
2031 cx: &mut ViewContext<Self>,
2032 ) {
2033 if !self.focus_handle.is_focused(cx) {
2034 cx.focus(&self.focus_handle);
2035 }
2036
2037 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2038 let buffer = &display_map.buffer_snapshot;
2039 let newest_selection = self.selections.newest_anchor().clone();
2040 let position = display_map.clip_point(position, Bias::Left);
2041
2042 let start;
2043 let end;
2044 let mode;
2045 let auto_scroll;
2046 match click_count {
2047 1 => {
2048 start = buffer.anchor_before(position.to_point(&display_map));
2049 end = start.clone();
2050 mode = SelectMode::Character;
2051 auto_scroll = true;
2052 }
2053 2 => {
2054 let range = movement::surrounding_word(&display_map, position);
2055 start = buffer.anchor_before(range.start.to_point(&display_map));
2056 end = buffer.anchor_before(range.end.to_point(&display_map));
2057 mode = SelectMode::Word(start.clone()..end.clone());
2058 auto_scroll = true;
2059 }
2060 3 => {
2061 let position = display_map
2062 .clip_point(position, Bias::Left)
2063 .to_point(&display_map);
2064 let line_start = display_map.prev_line_boundary(position).0;
2065 let next_line_start = buffer.clip_point(
2066 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2067 Bias::Left,
2068 );
2069 start = buffer.anchor_before(line_start);
2070 end = buffer.anchor_before(next_line_start);
2071 mode = SelectMode::Line(start.clone()..end.clone());
2072 auto_scroll = true;
2073 }
2074 _ => {
2075 start = buffer.anchor_before(0);
2076 end = buffer.anchor_before(buffer.len());
2077 mode = SelectMode::All;
2078 auto_scroll = false;
2079 }
2080 }
2081
2082 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2083 if !add {
2084 s.clear_disjoint();
2085 } else if click_count > 1 {
2086 s.delete(newest_selection.id)
2087 }
2088
2089 s.set_pending_anchor_range(start..end, mode);
2090 });
2091 }
2092
2093 fn begin_columnar_selection(
2094 &mut self,
2095 position: DisplayPoint,
2096 goal_column: u32,
2097 cx: &mut ViewContext<Self>,
2098 ) {
2099 if !self.focus_handle.is_focused(cx) {
2100 cx.focus(&self.focus_handle);
2101 }
2102
2103 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2104 let tail = self.selections.newest::<Point>(cx).tail();
2105 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2106
2107 self.select_columns(
2108 tail.to_display_point(&display_map),
2109 position,
2110 goal_column,
2111 &display_map,
2112 cx,
2113 );
2114 }
2115
2116 fn update_selection(
2117 &mut self,
2118 position: DisplayPoint,
2119 goal_column: u32,
2120 scroll_delta: gpui::Point<f32>,
2121 cx: &mut ViewContext<Self>,
2122 ) {
2123 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2124
2125 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2126 let tail = tail.to_display_point(&display_map);
2127 self.select_columns(tail, position, goal_column, &display_map, cx);
2128 } else if let Some(mut pending) = self.selections.pending_anchor() {
2129 let buffer = self.buffer.read(cx).snapshot(cx);
2130 let head;
2131 let tail;
2132 let mode = self.selections.pending_mode().unwrap();
2133 match &mode {
2134 SelectMode::Character => {
2135 head = position.to_point(&display_map);
2136 tail = pending.tail().to_point(&buffer);
2137 }
2138 SelectMode::Word(original_range) => {
2139 let original_display_range = original_range.start.to_display_point(&display_map)
2140 ..original_range.end.to_display_point(&display_map);
2141 let original_buffer_range = original_display_range.start.to_point(&display_map)
2142 ..original_display_range.end.to_point(&display_map);
2143 if movement::is_inside_word(&display_map, position)
2144 || original_display_range.contains(&position)
2145 {
2146 let word_range = movement::surrounding_word(&display_map, position);
2147 if word_range.start < original_display_range.start {
2148 head = word_range.start.to_point(&display_map);
2149 } else {
2150 head = word_range.end.to_point(&display_map);
2151 }
2152 } else {
2153 head = position.to_point(&display_map);
2154 }
2155
2156 if head <= original_buffer_range.start {
2157 tail = original_buffer_range.end;
2158 } else {
2159 tail = original_buffer_range.start;
2160 }
2161 }
2162 SelectMode::Line(original_range) => {
2163 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2164
2165 let position = display_map
2166 .clip_point(position, Bias::Left)
2167 .to_point(&display_map);
2168 let line_start = display_map.prev_line_boundary(position).0;
2169 let next_line_start = buffer.clip_point(
2170 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2171 Bias::Left,
2172 );
2173
2174 if line_start < original_range.start {
2175 head = line_start
2176 } else {
2177 head = next_line_start
2178 }
2179
2180 if head <= original_range.start {
2181 tail = original_range.end;
2182 } else {
2183 tail = original_range.start;
2184 }
2185 }
2186 SelectMode::All => {
2187 return;
2188 }
2189 };
2190
2191 if head < tail {
2192 pending.start = buffer.anchor_before(head);
2193 pending.end = buffer.anchor_before(tail);
2194 pending.reversed = true;
2195 } else {
2196 pending.start = buffer.anchor_before(tail);
2197 pending.end = buffer.anchor_before(head);
2198 pending.reversed = false;
2199 }
2200
2201 self.change_selections(None, cx, |s| {
2202 s.set_pending(pending, mode);
2203 });
2204 } else {
2205 log::error!("update_selection dispatched with no pending selection");
2206 return;
2207 }
2208
2209 self.apply_scroll_delta(scroll_delta, cx);
2210 cx.notify();
2211 }
2212
2213 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2214 self.columnar_selection_tail.take();
2215 if self.selections.pending_anchor().is_some() {
2216 let selections = self.selections.all::<usize>(cx);
2217 self.change_selections(None, cx, |s| {
2218 s.select(selections);
2219 s.clear_pending();
2220 });
2221 }
2222 }
2223
2224 fn select_columns(
2225 &mut self,
2226 tail: DisplayPoint,
2227 head: DisplayPoint,
2228 goal_column: u32,
2229 display_map: &DisplaySnapshot,
2230 cx: &mut ViewContext<Self>,
2231 ) {
2232 let start_row = cmp::min(tail.row(), head.row());
2233 let end_row = cmp::max(tail.row(), head.row());
2234 let start_column = cmp::min(tail.column(), goal_column);
2235 let end_column = cmp::max(tail.column(), goal_column);
2236 let reversed = start_column < tail.column();
2237
2238 let selection_ranges = (start_row..=end_row)
2239 .filter_map(|row| {
2240 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2241 let start = display_map
2242 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2243 .to_point(display_map);
2244 let end = display_map
2245 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2246 .to_point(display_map);
2247 if reversed {
2248 Some(end..start)
2249 } else {
2250 Some(start..end)
2251 }
2252 } else {
2253 None
2254 }
2255 })
2256 .collect::<Vec<_>>();
2257
2258 self.change_selections(None, cx, |s| {
2259 s.select_ranges(selection_ranges);
2260 });
2261 cx.notify();
2262 }
2263
2264 pub fn has_pending_nonempty_selection(&self) -> bool {
2265 let pending_nonempty_selection = match self.selections.pending_anchor() {
2266 Some(Selection { start, end, .. }) => start != end,
2267 None => false,
2268 };
2269 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2270 }
2271
2272 pub fn has_pending_selection(&self) -> bool {
2273 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2274 }
2275
2276 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2277 if self.take_rename(false, cx).is_some() {
2278 return;
2279 }
2280
2281 if hide_hover(self, cx) {
2282 return;
2283 }
2284
2285 if self.hide_context_menu(cx).is_some() {
2286 return;
2287 }
2288
2289 if self.discard_copilot_suggestion(cx) {
2290 return;
2291 }
2292
2293 if self.snippet_stack.pop().is_some() {
2294 return;
2295 }
2296
2297 if self.mode == EditorMode::Full {
2298 if self.active_diagnostics.is_some() {
2299 self.dismiss_diagnostics(cx);
2300 return;
2301 }
2302
2303 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2304 return;
2305 }
2306 }
2307
2308 cx.propagate();
2309 }
2310
2311 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2312 let text: Arc<str> = text.into();
2313
2314 if self.read_only(cx) {
2315 return;
2316 }
2317
2318 let selections = self.selections.all_adjusted(cx);
2319 let mut brace_inserted = false;
2320 let mut edits = Vec::new();
2321 let mut new_selections = Vec::with_capacity(selections.len());
2322 let mut new_autoclose_regions = Vec::new();
2323 let snapshot = self.buffer.read(cx).read(cx);
2324
2325 for (selection, autoclose_region) in
2326 self.selections_with_autoclose_regions(selections, &snapshot)
2327 {
2328 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2329 // Determine if the inserted text matches the opening or closing
2330 // bracket of any of this language's bracket pairs.
2331 let mut bracket_pair = None;
2332 let mut is_bracket_pair_start = false;
2333 if !text.is_empty() {
2334 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2335 // and they are removing the character that triggered IME popup.
2336 for (pair, enabled) in scope.brackets() {
2337 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2338 bracket_pair = Some(pair.clone());
2339 is_bracket_pair_start = true;
2340 break;
2341 } else if pair.end.as_str() == text.as_ref() {
2342 bracket_pair = Some(pair.clone());
2343 break;
2344 }
2345 }
2346 }
2347
2348 if let Some(bracket_pair) = bracket_pair {
2349 if selection.is_empty() {
2350 if is_bracket_pair_start {
2351 let prefix_len = bracket_pair.start.len() - text.len();
2352
2353 // If the inserted text is a suffix of an opening bracket and the
2354 // selection is preceded by the rest of the opening bracket, then
2355 // insert the closing bracket.
2356 let following_text_allows_autoclose = snapshot
2357 .chars_at(selection.start)
2358 .next()
2359 .map_or(true, |c| scope.should_autoclose_before(c));
2360 let preceding_text_matches_prefix = prefix_len == 0
2361 || (selection.start.column >= (prefix_len as u32)
2362 && snapshot.contains_str_at(
2363 Point::new(
2364 selection.start.row,
2365 selection.start.column - (prefix_len as u32),
2366 ),
2367 &bracket_pair.start[..prefix_len],
2368 ));
2369 let autoclose = self.use_autoclose
2370 && snapshot.settings_at(selection.start, cx).use_autoclose;
2371 if autoclose
2372 && following_text_allows_autoclose
2373 && preceding_text_matches_prefix
2374 {
2375 let anchor = snapshot.anchor_before(selection.end);
2376 new_selections.push((selection.map(|_| anchor), text.len()));
2377 new_autoclose_regions.push((
2378 anchor,
2379 text.len(),
2380 selection.id,
2381 bracket_pair.clone(),
2382 ));
2383 edits.push((
2384 selection.range(),
2385 format!("{}{}", text, bracket_pair.end).into(),
2386 ));
2387 brace_inserted = true;
2388 continue;
2389 }
2390 }
2391
2392 if let Some(region) = autoclose_region {
2393 // If the selection is followed by an auto-inserted closing bracket,
2394 // then don't insert that closing bracket again; just move the selection
2395 // past the closing bracket.
2396 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2397 && text.as_ref() == region.pair.end.as_str();
2398 if should_skip {
2399 let anchor = snapshot.anchor_after(selection.end);
2400 new_selections
2401 .push((selection.map(|_| anchor), region.pair.end.len()));
2402 continue;
2403 }
2404 }
2405 }
2406 // If an opening bracket is 1 character long and is typed while
2407 // text is selected, then surround that text with the bracket pair.
2408 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2409 edits.push((selection.start..selection.start, text.clone()));
2410 edits.push((
2411 selection.end..selection.end,
2412 bracket_pair.end.as_str().into(),
2413 ));
2414 brace_inserted = true;
2415 new_selections.push((
2416 Selection {
2417 id: selection.id,
2418 start: snapshot.anchor_after(selection.start),
2419 end: snapshot.anchor_before(selection.end),
2420 reversed: selection.reversed,
2421 goal: selection.goal,
2422 },
2423 0,
2424 ));
2425 continue;
2426 }
2427 }
2428 }
2429
2430 // If not handling any auto-close operation, then just replace the selected
2431 // text with the given input and move the selection to the end of the
2432 // newly inserted text.
2433 let anchor = snapshot.anchor_after(selection.end);
2434 new_selections.push((selection.map(|_| anchor), 0));
2435 edits.push((selection.start..selection.end, text.clone()));
2436 }
2437
2438 drop(snapshot);
2439 self.transact(cx, |this, cx| {
2440 this.buffer.update(cx, |buffer, cx| {
2441 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2442 });
2443
2444 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2445 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2446 let snapshot = this.buffer.read(cx).read(cx);
2447 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2448 .zip(new_selection_deltas)
2449 .map(|(selection, delta)| Selection {
2450 id: selection.id,
2451 start: selection.start + delta,
2452 end: selection.end + delta,
2453 reversed: selection.reversed,
2454 goal: SelectionGoal::None,
2455 })
2456 .collect::<Vec<_>>();
2457
2458 let mut i = 0;
2459 for (position, delta, selection_id, pair) in new_autoclose_regions {
2460 let position = position.to_offset(&snapshot) + delta;
2461 let start = snapshot.anchor_before(position);
2462 let end = snapshot.anchor_after(position);
2463 while let Some(existing_state) = this.autoclose_regions.get(i) {
2464 match existing_state.range.start.cmp(&start, &snapshot) {
2465 Ordering::Less => i += 1,
2466 Ordering::Greater => break,
2467 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2468 Ordering::Less => i += 1,
2469 Ordering::Equal => break,
2470 Ordering::Greater => break,
2471 },
2472 }
2473 }
2474 this.autoclose_regions.insert(
2475 i,
2476 AutocloseRegion {
2477 selection_id,
2478 range: start..end,
2479 pair,
2480 },
2481 );
2482 }
2483
2484 drop(snapshot);
2485 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2486 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2487
2488 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2489 if let Some(on_type_format_task) =
2490 this.trigger_on_type_formatting(text.to_string(), cx)
2491 {
2492 on_type_format_task.detach_and_log_err(cx);
2493 }
2494 }
2495
2496 if had_active_copilot_suggestion {
2497 this.refresh_copilot_suggestions(true, cx);
2498 if !this.has_active_copilot_suggestion(cx) {
2499 this.trigger_completion_on_input(&text, cx);
2500 }
2501 } else {
2502 this.trigger_completion_on_input(&text, cx);
2503 this.refresh_copilot_suggestions(true, cx);
2504 }
2505 });
2506 }
2507
2508 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2509 self.transact(cx, |this, cx| {
2510 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2511 let selections = this.selections.all::<usize>(cx);
2512 let multi_buffer = this.buffer.read(cx);
2513 let buffer = multi_buffer.snapshot(cx);
2514 selections
2515 .iter()
2516 .map(|selection| {
2517 let start_point = selection.start.to_point(&buffer);
2518 let mut indent = buffer.indent_size_for_line(start_point.row);
2519 indent.len = cmp::min(indent.len, start_point.column);
2520 let start = selection.start;
2521 let end = selection.end;
2522 let is_cursor = start == end;
2523 let language_scope = buffer.language_scope_at(start);
2524 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2525 &language_scope
2526 {
2527 let leading_whitespace_len = buffer
2528 .reversed_chars_at(start)
2529 .take_while(|c| c.is_whitespace() && *c != '\n')
2530 .map(|c| c.len_utf8())
2531 .sum::<usize>();
2532
2533 let trailing_whitespace_len = buffer
2534 .chars_at(end)
2535 .take_while(|c| c.is_whitespace() && *c != '\n')
2536 .map(|c| c.len_utf8())
2537 .sum::<usize>();
2538
2539 let insert_extra_newline =
2540 language.brackets().any(|(pair, enabled)| {
2541 let pair_start = pair.start.trim_end();
2542 let pair_end = pair.end.trim_start();
2543
2544 enabled
2545 && pair.newline
2546 && buffer.contains_str_at(
2547 end + trailing_whitespace_len,
2548 pair_end,
2549 )
2550 && buffer.contains_str_at(
2551 (start - leading_whitespace_len)
2552 .saturating_sub(pair_start.len()),
2553 pair_start,
2554 )
2555 });
2556 // Comment extension on newline is allowed only for cursor selections
2557 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2558 let is_comment_extension_enabled =
2559 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2560 is_cursor && is_comment_extension_enabled
2561 });
2562 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2563 let max_len_of_delimiter =
2564 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2565 let (snapshot, range) =
2566 buffer.buffer_line_for_row(start_point.row)?;
2567
2568 let mut index_of_first_non_whitespace = 0;
2569 let comment_candidate = snapshot
2570 .chars_for_range(range)
2571 .skip_while(|c| {
2572 let should_skip = c.is_whitespace();
2573 if should_skip {
2574 index_of_first_non_whitespace += 1;
2575 }
2576 should_skip
2577 })
2578 .take(max_len_of_delimiter)
2579 .collect::<String>();
2580 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2581 comment_candidate.starts_with(comment_prefix.as_ref())
2582 })?;
2583 let cursor_is_placed_after_comment_marker =
2584 index_of_first_non_whitespace + comment_prefix.len()
2585 <= start_point.column as usize;
2586 if cursor_is_placed_after_comment_marker {
2587 Some(comment_prefix.clone())
2588 } else {
2589 None
2590 }
2591 };
2592 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2593 get_comment_delimiter(delimiters)
2594 } else {
2595 None
2596 };
2597 (comment_delimiter, insert_extra_newline)
2598 } else {
2599 (None, false)
2600 };
2601
2602 let capacity_for_delimiter = comment_delimiter
2603 .as_deref()
2604 .map(str::len)
2605 .unwrap_or_default();
2606 let mut new_text =
2607 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2608 new_text.push_str("\n");
2609 new_text.extend(indent.chars());
2610 if let Some(delimiter) = &comment_delimiter {
2611 new_text.push_str(&delimiter);
2612 }
2613 if insert_extra_newline {
2614 new_text = new_text.repeat(2);
2615 }
2616
2617 let anchor = buffer.anchor_after(end);
2618 let new_selection = selection.map(|_| anchor);
2619 (
2620 (start..end, new_text),
2621 (insert_extra_newline, new_selection),
2622 )
2623 })
2624 .unzip()
2625 };
2626
2627 this.edit_with_autoindent(edits, cx);
2628 let buffer = this.buffer.read(cx).snapshot(cx);
2629 let new_selections = selection_fixup_info
2630 .into_iter()
2631 .map(|(extra_newline_inserted, new_selection)| {
2632 let mut cursor = new_selection.end.to_point(&buffer);
2633 if extra_newline_inserted {
2634 cursor.row -= 1;
2635 cursor.column = buffer.line_len(cursor.row);
2636 }
2637 new_selection.map(|_| cursor)
2638 })
2639 .collect();
2640
2641 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2642 this.refresh_copilot_suggestions(true, cx);
2643 });
2644 }
2645
2646 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2647 let buffer = self.buffer.read(cx);
2648 let snapshot = buffer.snapshot(cx);
2649
2650 let mut edits = Vec::new();
2651 let mut rows = Vec::new();
2652 let mut rows_inserted = 0;
2653
2654 for selection in self.selections.all_adjusted(cx) {
2655 let cursor = selection.head();
2656 let row = cursor.row;
2657
2658 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2659
2660 let newline = "\n".to_string();
2661 edits.push((start_of_line..start_of_line, newline));
2662
2663 rows.push(row + rows_inserted);
2664 rows_inserted += 1;
2665 }
2666
2667 self.transact(cx, |editor, cx| {
2668 editor.edit(edits, cx);
2669
2670 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2671 let mut index = 0;
2672 s.move_cursors_with(|map, _, _| {
2673 let row = rows[index];
2674 index += 1;
2675
2676 let point = Point::new(row, 0);
2677 let boundary = map.next_line_boundary(point).1;
2678 let clipped = map.clip_point(boundary, Bias::Left);
2679
2680 (clipped, SelectionGoal::None)
2681 });
2682 });
2683
2684 let mut indent_edits = Vec::new();
2685 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2686 for row in rows {
2687 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2688 for (row, indent) in indents {
2689 if indent.len == 0 {
2690 continue;
2691 }
2692
2693 let text = match indent.kind {
2694 IndentKind::Space => " ".repeat(indent.len as usize),
2695 IndentKind::Tab => "\t".repeat(indent.len as usize),
2696 };
2697 let point = Point::new(row, 0);
2698 indent_edits.push((point..point, text));
2699 }
2700 }
2701 editor.edit(indent_edits, cx);
2702 });
2703 }
2704
2705 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2706 let buffer = self.buffer.read(cx);
2707 let snapshot = buffer.snapshot(cx);
2708
2709 let mut edits = Vec::new();
2710 let mut rows = Vec::new();
2711 let mut rows_inserted = 0;
2712
2713 for selection in self.selections.all_adjusted(cx) {
2714 let cursor = selection.head();
2715 let row = cursor.row;
2716
2717 let point = Point::new(row + 1, 0);
2718 let start_of_line = snapshot.clip_point(point, Bias::Left);
2719
2720 let newline = "\n".to_string();
2721 edits.push((start_of_line..start_of_line, newline));
2722
2723 rows_inserted += 1;
2724 rows.push(row + rows_inserted);
2725 }
2726
2727 self.transact(cx, |editor, cx| {
2728 editor.edit(edits, cx);
2729
2730 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2731 let mut index = 0;
2732 s.move_cursors_with(|map, _, _| {
2733 let row = rows[index];
2734 index += 1;
2735
2736 let point = Point::new(row, 0);
2737 let boundary = map.next_line_boundary(point).1;
2738 let clipped = map.clip_point(boundary, Bias::Left);
2739
2740 (clipped, SelectionGoal::None)
2741 });
2742 });
2743
2744 let mut indent_edits = Vec::new();
2745 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2746 for row in rows {
2747 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2748 for (row, indent) in indents {
2749 if indent.len == 0 {
2750 continue;
2751 }
2752
2753 let text = match indent.kind {
2754 IndentKind::Space => " ".repeat(indent.len as usize),
2755 IndentKind::Tab => "\t".repeat(indent.len as usize),
2756 };
2757 let point = Point::new(row, 0);
2758 indent_edits.push((point..point, text));
2759 }
2760 }
2761 editor.edit(indent_edits, cx);
2762 });
2763 }
2764
2765 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2766 self.insert_with_autoindent_mode(
2767 text,
2768 Some(AutoindentMode::Block {
2769 original_indent_columns: Vec::new(),
2770 }),
2771 cx,
2772 );
2773 }
2774
2775 fn insert_with_autoindent_mode(
2776 &mut self,
2777 text: &str,
2778 autoindent_mode: Option<AutoindentMode>,
2779 cx: &mut ViewContext<Self>,
2780 ) {
2781 if self.read_only(cx) {
2782 return;
2783 }
2784
2785 let text: Arc<str> = text.into();
2786 self.transact(cx, |this, cx| {
2787 let old_selections = this.selections.all_adjusted(cx);
2788 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2789 let anchors = {
2790 let snapshot = buffer.read(cx);
2791 old_selections
2792 .iter()
2793 .map(|s| {
2794 let anchor = snapshot.anchor_after(s.head());
2795 s.map(|_| anchor)
2796 })
2797 .collect::<Vec<_>>()
2798 };
2799 buffer.edit(
2800 old_selections
2801 .iter()
2802 .map(|s| (s.start..s.end, text.clone())),
2803 autoindent_mode,
2804 cx,
2805 );
2806 anchors
2807 });
2808
2809 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2810 s.select_anchors(selection_anchors);
2811 })
2812 });
2813 }
2814
2815 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2816 if !EditorSettings::get_global(cx).show_completions_on_input {
2817 return;
2818 }
2819
2820 let selection = self.selections.newest_anchor();
2821 if self
2822 .buffer
2823 .read(cx)
2824 .is_completion_trigger(selection.head(), text, cx)
2825 {
2826 self.show_completions(&ShowCompletions, cx);
2827 } else {
2828 self.hide_context_menu(cx);
2829 }
2830 }
2831
2832 /// If any empty selections is touching the start of its innermost containing autoclose
2833 /// region, expand it to select the brackets.
2834 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2835 let selections = self.selections.all::<usize>(cx);
2836 let buffer = self.buffer.read(cx).read(cx);
2837 let mut new_selections = Vec::new();
2838 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2839 if let (Some(region), true) = (region, selection.is_empty()) {
2840 let mut range = region.range.to_offset(&buffer);
2841 if selection.start == range.start {
2842 if range.start >= region.pair.start.len() {
2843 range.start -= region.pair.start.len();
2844 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2845 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2846 range.end += region.pair.end.len();
2847 selection.start = range.start;
2848 selection.end = range.end;
2849 }
2850 }
2851 }
2852 }
2853 }
2854 new_selections.push(selection);
2855 }
2856
2857 drop(buffer);
2858 self.change_selections(None, cx, |selections| selections.select(new_selections));
2859 }
2860
2861 /// Iterate the given selections, and for each one, find the smallest surrounding
2862 /// autoclose region. This uses the ordering of the selections and the autoclose
2863 /// regions to avoid repeated comparisons.
2864 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2865 &'a self,
2866 selections: impl IntoIterator<Item = Selection<D>>,
2867 buffer: &'a MultiBufferSnapshot,
2868 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2869 let mut i = 0;
2870 let mut regions = self.autoclose_regions.as_slice();
2871 selections.into_iter().map(move |selection| {
2872 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2873
2874 let mut enclosing = None;
2875 while let Some(pair_state) = regions.get(i) {
2876 if pair_state.range.end.to_offset(buffer) < range.start {
2877 regions = ®ions[i + 1..];
2878 i = 0;
2879 } else if pair_state.range.start.to_offset(buffer) > range.end {
2880 break;
2881 } else {
2882 if pair_state.selection_id == selection.id {
2883 enclosing = Some(pair_state);
2884 }
2885 i += 1;
2886 }
2887 }
2888
2889 (selection.clone(), enclosing)
2890 })
2891 }
2892
2893 /// Remove any autoclose regions that no longer contain their selection.
2894 fn invalidate_autoclose_regions(
2895 &mut self,
2896 mut selections: &[Selection<Anchor>],
2897 buffer: &MultiBufferSnapshot,
2898 ) {
2899 self.autoclose_regions.retain(|state| {
2900 let mut i = 0;
2901 while let Some(selection) = selections.get(i) {
2902 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2903 selections = &selections[1..];
2904 continue;
2905 }
2906 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2907 break;
2908 }
2909 if selection.id == state.selection_id {
2910 return true;
2911 } else {
2912 i += 1;
2913 }
2914 }
2915 false
2916 });
2917 }
2918
2919 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2920 let offset = position.to_offset(buffer);
2921 let (word_range, kind) = buffer.surrounding_word(offset);
2922 if offset > word_range.start && kind == Some(CharKind::Word) {
2923 Some(
2924 buffer
2925 .text_for_range(word_range.start..offset)
2926 .collect::<String>(),
2927 )
2928 } else {
2929 None
2930 }
2931 }
2932
2933 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2934 self.refresh_inlay_hints(
2935 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2936 cx,
2937 );
2938 }
2939
2940 pub fn inlay_hints_enabled(&self) -> bool {
2941 self.inlay_hint_cache.enabled
2942 }
2943
2944 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2945 if self.project.is_none() || self.mode != EditorMode::Full {
2946 return;
2947 }
2948
2949 let reason_description = reason.description();
2950 let (invalidate_cache, required_languages) = match reason {
2951 InlayHintRefreshReason::Toggle(enabled) => {
2952 self.inlay_hint_cache.enabled = enabled;
2953 if enabled {
2954 (InvalidationStrategy::RefreshRequested, None)
2955 } else {
2956 self.inlay_hint_cache.clear();
2957 self.splice_inlay_hints(
2958 self.visible_inlay_hints(cx)
2959 .iter()
2960 .map(|inlay| inlay.id)
2961 .collect(),
2962 Vec::new(),
2963 cx,
2964 );
2965 return;
2966 }
2967 }
2968 InlayHintRefreshReason::SettingsChange(new_settings) => {
2969 match self.inlay_hint_cache.update_settings(
2970 &self.buffer,
2971 new_settings,
2972 self.visible_inlay_hints(cx),
2973 cx,
2974 ) {
2975 ControlFlow::Break(Some(InlaySplice {
2976 to_remove,
2977 to_insert,
2978 })) => {
2979 self.splice_inlay_hints(to_remove, to_insert, cx);
2980 return;
2981 }
2982 ControlFlow::Break(None) => return,
2983 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2984 }
2985 }
2986 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2987 if let Some(InlaySplice {
2988 to_remove,
2989 to_insert,
2990 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2991 {
2992 self.splice_inlay_hints(to_remove, to_insert, cx);
2993 }
2994 return;
2995 }
2996 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
2997 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
2998 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
2999 }
3000 InlayHintRefreshReason::RefreshRequested => {
3001 (InvalidationStrategy::RefreshRequested, None)
3002 }
3003 };
3004
3005 if let Some(InlaySplice {
3006 to_remove,
3007 to_insert,
3008 }) = self.inlay_hint_cache.spawn_hint_refresh(
3009 reason_description,
3010 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3011 invalidate_cache,
3012 cx,
3013 ) {
3014 self.splice_inlay_hints(to_remove, to_insert, cx);
3015 }
3016 }
3017
3018 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3019 self.display_map
3020 .read(cx)
3021 .current_inlays()
3022 .filter(move |inlay| {
3023 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3024 })
3025 .cloned()
3026 .collect()
3027 }
3028
3029 pub fn excerpts_for_inlay_hints_query(
3030 &self,
3031 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3032 cx: &mut ViewContext<Editor>,
3033 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3034 let Some(project) = self.project.as_ref() else {
3035 return HashMap::default();
3036 };
3037 let project = project.read(cx);
3038 let multi_buffer = self.buffer().read(cx);
3039 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3040 let multi_buffer_visible_start = self
3041 .scroll_manager
3042 .anchor()
3043 .anchor
3044 .to_point(&multi_buffer_snapshot);
3045 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3046 multi_buffer_visible_start
3047 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3048 Bias::Left,
3049 );
3050 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3051 multi_buffer
3052 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3053 .into_iter()
3054 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3055 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3056 let buffer = buffer_handle.read(cx);
3057 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3058 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3059 let worktree_entry = buffer_worktree
3060 .read(cx)
3061 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3062 if worktree_entry.is_ignored {
3063 return None;
3064 }
3065
3066 let language = buffer.language()?;
3067 if let Some(restrict_to_languages) = restrict_to_languages {
3068 if !restrict_to_languages.contains(language) {
3069 return None;
3070 }
3071 }
3072 Some((
3073 excerpt_id,
3074 (
3075 buffer_handle,
3076 buffer.version().clone(),
3077 excerpt_visible_range,
3078 ),
3079 ))
3080 })
3081 .collect()
3082 }
3083
3084 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3085 TextLayoutDetails {
3086 text_system: cx.text_system().clone(),
3087 editor_style: self.style.clone().unwrap(),
3088 rem_size: cx.rem_size(),
3089 anchor: self.scroll_manager.anchor().anchor,
3090 visible_rows: self.visible_line_count(),
3091 }
3092 }
3093
3094 fn splice_inlay_hints(
3095 &self,
3096 to_remove: Vec<InlayId>,
3097 to_insert: Vec<Inlay>,
3098 cx: &mut ViewContext<Self>,
3099 ) {
3100 self.display_map.update(cx, |display_map, cx| {
3101 display_map.splice_inlays(to_remove, to_insert, cx);
3102 });
3103 cx.notify();
3104 }
3105
3106 fn trigger_on_type_formatting(
3107 &self,
3108 input: String,
3109 cx: &mut ViewContext<Self>,
3110 ) -> Option<Task<Result<()>>> {
3111 if input.len() != 1 {
3112 return None;
3113 }
3114
3115 let project = self.project.as_ref()?;
3116 let position = self.selections.newest_anchor().head();
3117 let (buffer, buffer_position) = self
3118 .buffer
3119 .read(cx)
3120 .text_anchor_for_position(position.clone(), cx)?;
3121
3122 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3123 // hence we do LSP request & edit on host side only — add formats to host's history.
3124 let push_to_lsp_host_history = true;
3125 // If this is not the host, append its history with new edits.
3126 let push_to_client_history = project.read(cx).is_remote();
3127
3128 let on_type_formatting = project.update(cx, |project, cx| {
3129 project.on_type_format(
3130 buffer.clone(),
3131 buffer_position,
3132 input,
3133 push_to_lsp_host_history,
3134 cx,
3135 )
3136 });
3137 Some(cx.spawn(|editor, mut cx| async move {
3138 if let Some(transaction) = on_type_formatting.await? {
3139 if push_to_client_history {
3140 buffer
3141 .update(&mut cx, |buffer, _| {
3142 buffer.push_transaction(transaction, Instant::now());
3143 })
3144 .ok();
3145 }
3146 editor.update(&mut cx, |editor, cx| {
3147 editor.refresh_document_highlights(cx);
3148 })?;
3149 }
3150 Ok(())
3151 }))
3152 }
3153
3154 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3155 if self.pending_rename.is_some() {
3156 return;
3157 }
3158
3159 let Some(provider) = self.completion_provider.as_ref() else {
3160 return;
3161 };
3162
3163 let position = self.selections.newest_anchor().head();
3164 let (buffer, buffer_position) = if let Some(output) = self
3165 .buffer
3166 .read(cx)
3167 .text_anchor_for_position(position.clone(), cx)
3168 {
3169 output
3170 } else {
3171 return;
3172 };
3173
3174 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3175 let completions = provider.completions(&buffer, buffer_position, cx);
3176
3177 let id = post_inc(&mut self.next_completion_id);
3178 let task = cx.spawn(|this, mut cx| {
3179 async move {
3180 let completions = completions.await.log_err();
3181 let menu = if let Some(completions) = completions {
3182 let mut menu = CompletionsMenu {
3183 id,
3184 initial_position: position,
3185 match_candidates: completions
3186 .iter()
3187 .enumerate()
3188 .map(|(id, completion)| {
3189 StringMatchCandidate::new(
3190 id,
3191 completion.label.text[completion.label.filter_range.clone()]
3192 .into(),
3193 )
3194 })
3195 .collect(),
3196 buffer,
3197 completions: Arc::new(RwLock::new(completions.into())),
3198 matches: Vec::new().into(),
3199 selected_item: 0,
3200 scroll_handle: UniformListScrollHandle::new(),
3201 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3202 DebouncedDelay::new(),
3203 )),
3204 };
3205 menu.filter(query.as_deref(), cx.background_executor().clone())
3206 .await;
3207
3208 if menu.matches.is_empty() {
3209 None
3210 } else {
3211 this.update(&mut cx, |editor, cx| {
3212 let completions = menu.completions.clone();
3213 let matches = menu.matches.clone();
3214
3215 let delay_ms = EditorSettings::get_global(cx)
3216 .completion_documentation_secondary_query_debounce;
3217 let delay = Duration::from_millis(delay_ms);
3218
3219 editor
3220 .completion_documentation_pre_resolve_debounce
3221 .fire_new(delay, cx, |editor, cx| {
3222 CompletionsMenu::pre_resolve_completion_documentation(
3223 completions,
3224 matches,
3225 editor,
3226 cx,
3227 )
3228 });
3229 })
3230 .ok();
3231 Some(menu)
3232 }
3233 } else {
3234 None
3235 };
3236
3237 this.update(&mut cx, |this, cx| {
3238 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3239
3240 let mut context_menu = this.context_menu.write();
3241 match context_menu.as_ref() {
3242 None => {}
3243
3244 Some(ContextMenu::Completions(prev_menu)) => {
3245 if prev_menu.id > id {
3246 return;
3247 }
3248 }
3249
3250 _ => return,
3251 }
3252
3253 if this.focus_handle.is_focused(cx) && menu.is_some() {
3254 let menu = menu.unwrap();
3255 *context_menu = Some(ContextMenu::Completions(menu));
3256 drop(context_menu);
3257 this.discard_copilot_suggestion(cx);
3258 cx.notify();
3259 } else if this.completion_tasks.len() <= 1 {
3260 // If there are no more completion tasks and the last menu was
3261 // empty, we should hide it. If it was already hidden, we should
3262 // also show the copilot suggestion when available.
3263 drop(context_menu);
3264 if this.hide_context_menu(cx).is_none() {
3265 this.update_visible_copilot_suggestion(cx);
3266 }
3267 }
3268 })?;
3269
3270 Ok::<_, anyhow::Error>(())
3271 }
3272 .log_err()
3273 });
3274
3275 self.completion_tasks.push((id, task));
3276 }
3277
3278 pub fn confirm_completion(
3279 &mut self,
3280 action: &ConfirmCompletion,
3281 cx: &mut ViewContext<Self>,
3282 ) -> Option<Task<Result<()>>> {
3283 use language::ToOffset as _;
3284
3285 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3286 menu
3287 } else {
3288 return None;
3289 };
3290
3291 let mat = completions_menu
3292 .matches
3293 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3294 let buffer_handle = completions_menu.buffer;
3295 let completions = completions_menu.completions.read();
3296 let completion = completions.get(mat.candidate_id)?;
3297 cx.stop_propagation();
3298
3299 let snippet;
3300 let text;
3301 if completion.is_snippet() {
3302 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3303 text = snippet.as_ref().unwrap().text.clone();
3304 } else {
3305 snippet = None;
3306 text = completion.new_text.clone();
3307 };
3308 let selections = self.selections.all::<usize>(cx);
3309 let buffer = buffer_handle.read(cx);
3310 let old_range = completion.old_range.to_offset(buffer);
3311 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3312
3313 let newest_selection = self.selections.newest_anchor();
3314 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3315 return None;
3316 }
3317
3318 let lookbehind = newest_selection
3319 .start
3320 .text_anchor
3321 .to_offset(buffer)
3322 .saturating_sub(old_range.start);
3323 let lookahead = old_range
3324 .end
3325 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3326 let mut common_prefix_len = old_text
3327 .bytes()
3328 .zip(text.bytes())
3329 .take_while(|(a, b)| a == b)
3330 .count();
3331
3332 let snapshot = self.buffer.read(cx).snapshot(cx);
3333 let mut range_to_replace: Option<Range<isize>> = None;
3334 let mut ranges = Vec::new();
3335 for selection in &selections {
3336 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3337 let start = selection.start.saturating_sub(lookbehind);
3338 let end = selection.end + lookahead;
3339 if selection.id == newest_selection.id {
3340 range_to_replace = Some(
3341 ((start + common_prefix_len) as isize - selection.start as isize)
3342 ..(end as isize - selection.start as isize),
3343 );
3344 }
3345 ranges.push(start + common_prefix_len..end);
3346 } else {
3347 common_prefix_len = 0;
3348 ranges.clear();
3349 ranges.extend(selections.iter().map(|s| {
3350 if s.id == newest_selection.id {
3351 range_to_replace = Some(
3352 old_range.start.to_offset_utf16(&snapshot).0 as isize
3353 - selection.start as isize
3354 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3355 - selection.start as isize,
3356 );
3357 old_range.clone()
3358 } else {
3359 s.start..s.end
3360 }
3361 }));
3362 break;
3363 }
3364 }
3365 let text = &text[common_prefix_len..];
3366
3367 cx.emit(EditorEvent::InputHandled {
3368 utf16_range_to_replace: range_to_replace,
3369 text: text.into(),
3370 });
3371
3372 self.transact(cx, |this, cx| {
3373 if let Some(mut snippet) = snippet {
3374 snippet.text = text.to_string();
3375 for tabstop in snippet.tabstops.iter_mut().flatten() {
3376 tabstop.start -= common_prefix_len as isize;
3377 tabstop.end -= common_prefix_len as isize;
3378 }
3379
3380 this.insert_snippet(&ranges, snippet, cx).log_err();
3381 } else {
3382 this.buffer.update(cx, |buffer, cx| {
3383 buffer.edit(
3384 ranges.iter().map(|range| (range.clone(), text)),
3385 this.autoindent_mode.clone(),
3386 cx,
3387 );
3388 });
3389 }
3390
3391 this.refresh_copilot_suggestions(true, cx);
3392 });
3393
3394 let provider = self.completion_provider.as_ref()?;
3395 let apply_edits = provider.apply_additional_edits_for_completion(
3396 buffer_handle,
3397 completion.clone(),
3398 true,
3399 cx,
3400 );
3401 Some(cx.foreground_executor().spawn(async move {
3402 apply_edits.await?;
3403 Ok(())
3404 }))
3405 }
3406
3407 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3408 let mut context_menu = self.context_menu.write();
3409 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3410 *context_menu = None;
3411 cx.notify();
3412 return;
3413 }
3414 drop(context_menu);
3415
3416 let deployed_from_indicator = action.deployed_from_indicator;
3417 let mut task = self.code_actions_task.take();
3418 cx.spawn(|this, mut cx| async move {
3419 while let Some(prev_task) = task {
3420 prev_task.await;
3421 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3422 }
3423
3424 this.update(&mut cx, |this, cx| {
3425 if this.focus_handle.is_focused(cx) {
3426 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3427 this.completion_tasks.clear();
3428 this.discard_copilot_suggestion(cx);
3429 *this.context_menu.write() =
3430 Some(ContextMenu::CodeActions(CodeActionsMenu {
3431 buffer,
3432 actions,
3433 selected_item: Default::default(),
3434 scroll_handle: UniformListScrollHandle::default(),
3435 deployed_from_indicator,
3436 }));
3437 cx.notify();
3438 }
3439 }
3440 })?;
3441
3442 Ok::<_, anyhow::Error>(())
3443 })
3444 .detach_and_log_err(cx);
3445 }
3446
3447 pub fn confirm_code_action(
3448 &mut self,
3449 action: &ConfirmCodeAction,
3450 cx: &mut ViewContext<Self>,
3451 ) -> Option<Task<Result<()>>> {
3452 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3453 menu
3454 } else {
3455 return None;
3456 };
3457 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3458 let action = actions_menu.actions.get(action_ix)?.clone();
3459 let title = action.lsp_action.title.clone();
3460 let buffer = actions_menu.buffer;
3461 let workspace = self.workspace()?;
3462
3463 let apply_code_actions = workspace
3464 .read(cx)
3465 .project()
3466 .clone()
3467 .update(cx, |project, cx| {
3468 project.apply_code_action(buffer, action, true, cx)
3469 });
3470 let workspace = workspace.downgrade();
3471 Some(cx.spawn(|editor, cx| async move {
3472 let project_transaction = apply_code_actions.await?;
3473 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3474 }))
3475 }
3476
3477 async fn open_project_transaction(
3478 this: &WeakView<Editor>,
3479 workspace: WeakView<Workspace>,
3480 transaction: ProjectTransaction,
3481 title: String,
3482 mut cx: AsyncWindowContext,
3483 ) -> Result<()> {
3484 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3485
3486 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3487 cx.update(|cx| {
3488 entries.sort_unstable_by_key(|(buffer, _)| {
3489 buffer.read(cx).file().map(|f| f.path().clone())
3490 });
3491 })?;
3492
3493 // If the project transaction's edits are all contained within this editor, then
3494 // avoid opening a new editor to display them.
3495
3496 if let Some((buffer, transaction)) = entries.first() {
3497 if entries.len() == 1 {
3498 let excerpt = this.update(&mut cx, |editor, cx| {
3499 editor
3500 .buffer()
3501 .read(cx)
3502 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3503 })?;
3504 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3505 if excerpted_buffer == *buffer {
3506 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3507 let excerpt_range = excerpt_range.to_offset(buffer);
3508 buffer
3509 .edited_ranges_for_transaction::<usize>(transaction)
3510 .all(|range| {
3511 excerpt_range.start <= range.start
3512 && excerpt_range.end >= range.end
3513 })
3514 })?;
3515
3516 if all_edits_within_excerpt {
3517 return Ok(());
3518 }
3519 }
3520 }
3521 }
3522 } else {
3523 return Ok(());
3524 }
3525
3526 let mut ranges_to_highlight = Vec::new();
3527 let excerpt_buffer = cx.new_model(|cx| {
3528 let mut multibuffer =
3529 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3530 for (buffer_handle, transaction) in &entries {
3531 let buffer = buffer_handle.read(cx);
3532 ranges_to_highlight.extend(
3533 multibuffer.push_excerpts_with_context_lines(
3534 buffer_handle.clone(),
3535 buffer
3536 .edited_ranges_for_transaction::<usize>(transaction)
3537 .collect(),
3538 1,
3539 cx,
3540 ),
3541 );
3542 }
3543 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3544 multibuffer
3545 })?;
3546
3547 workspace.update(&mut cx, |workspace, cx| {
3548 let project = workspace.project().clone();
3549 let editor =
3550 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3551 workspace.add_item(Box::new(editor.clone()), cx);
3552 editor.update(cx, |editor, cx| {
3553 editor.highlight_background::<Self>(
3554 ranges_to_highlight,
3555 |theme| theme.editor_highlighted_line_background,
3556 cx,
3557 );
3558 });
3559 })?;
3560
3561 Ok(())
3562 }
3563
3564 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3565 let project = self.project.clone()?;
3566 let buffer = self.buffer.read(cx);
3567 let newest_selection = self.selections.newest_anchor().clone();
3568 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3569 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3570 if start_buffer != end_buffer {
3571 return None;
3572 }
3573
3574 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3575 cx.background_executor()
3576 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3577 .await;
3578
3579 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3580 project.code_actions(&start_buffer, start..end, cx)
3581 }) {
3582 code_actions.await.log_err()
3583 } else {
3584 None
3585 };
3586
3587 this.update(&mut cx, |this, cx| {
3588 this.available_code_actions = actions.and_then(|actions| {
3589 if actions.is_empty() {
3590 None
3591 } else {
3592 Some((start_buffer, actions.into()))
3593 }
3594 });
3595 cx.notify();
3596 })
3597 .log_err();
3598 }));
3599 None
3600 }
3601
3602 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3603 if self.pending_rename.is_some() {
3604 return None;
3605 }
3606
3607 let project = self.project.clone()?;
3608 let buffer = self.buffer.read(cx);
3609 let newest_selection = self.selections.newest_anchor().clone();
3610 let cursor_position = newest_selection.head();
3611 let (cursor_buffer, cursor_buffer_position) =
3612 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3613 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3614 if cursor_buffer != tail_buffer {
3615 return None;
3616 }
3617
3618 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3619 cx.background_executor()
3620 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3621 .await;
3622
3623 let highlights = if let Some(highlights) = project
3624 .update(&mut cx, |project, cx| {
3625 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3626 })
3627 .log_err()
3628 {
3629 highlights.await.log_err()
3630 } else {
3631 None
3632 };
3633
3634 if let Some(highlights) = highlights {
3635 this.update(&mut cx, |this, cx| {
3636 if this.pending_rename.is_some() {
3637 return;
3638 }
3639
3640 let buffer_id = cursor_position.buffer_id;
3641 let buffer = this.buffer.read(cx);
3642 if !buffer
3643 .text_anchor_for_position(cursor_position, cx)
3644 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3645 {
3646 return;
3647 }
3648
3649 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3650 let mut write_ranges = Vec::new();
3651 let mut read_ranges = Vec::new();
3652 for highlight in highlights {
3653 for (excerpt_id, excerpt_range) in
3654 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3655 {
3656 let start = highlight
3657 .range
3658 .start
3659 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3660 let end = highlight
3661 .range
3662 .end
3663 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3664 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3665 continue;
3666 }
3667
3668 let range = Anchor {
3669 buffer_id,
3670 excerpt_id: excerpt_id.clone(),
3671 text_anchor: start,
3672 }..Anchor {
3673 buffer_id,
3674 excerpt_id,
3675 text_anchor: end,
3676 };
3677 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3678 write_ranges.push(range);
3679 } else {
3680 read_ranges.push(range);
3681 }
3682 }
3683 }
3684
3685 this.highlight_background::<DocumentHighlightRead>(
3686 read_ranges,
3687 |theme| theme.editor_document_highlight_read_background,
3688 cx,
3689 );
3690 this.highlight_background::<DocumentHighlightWrite>(
3691 write_ranges,
3692 |theme| theme.editor_document_highlight_write_background,
3693 cx,
3694 );
3695 cx.notify();
3696 })
3697 .log_err();
3698 }
3699 }));
3700 None
3701 }
3702
3703 fn refresh_copilot_suggestions(
3704 &mut self,
3705 debounce: bool,
3706 cx: &mut ViewContext<Self>,
3707 ) -> Option<()> {
3708 let copilot = Copilot::global(cx)?;
3709 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3710 self.clear_copilot_suggestions(cx);
3711 return None;
3712 }
3713 self.update_visible_copilot_suggestion(cx);
3714
3715 let snapshot = self.buffer.read(cx).snapshot(cx);
3716 let cursor = self.selections.newest_anchor().head();
3717 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3718 self.clear_copilot_suggestions(cx);
3719 return None;
3720 }
3721
3722 let (buffer, buffer_position) =
3723 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3724 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3725 if debounce {
3726 cx.background_executor()
3727 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3728 .await;
3729 }
3730
3731 let completions = copilot
3732 .update(&mut cx, |copilot, cx| {
3733 copilot.completions(&buffer, buffer_position, cx)
3734 })
3735 .log_err()
3736 .unwrap_or(Task::ready(Ok(Vec::new())))
3737 .await
3738 .log_err()
3739 .into_iter()
3740 .flatten()
3741 .collect_vec();
3742
3743 this.update(&mut cx, |this, cx| {
3744 if !completions.is_empty() {
3745 this.copilot_state.cycled = false;
3746 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3747 this.copilot_state.completions.clear();
3748 this.copilot_state.active_completion_index = 0;
3749 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3750 for completion in completions {
3751 this.copilot_state.push_completion(completion);
3752 }
3753 this.update_visible_copilot_suggestion(cx);
3754 }
3755 })
3756 .log_err()?;
3757 Some(())
3758 });
3759
3760 Some(())
3761 }
3762
3763 fn cycle_copilot_suggestions(
3764 &mut self,
3765 direction: Direction,
3766 cx: &mut ViewContext<Self>,
3767 ) -> Option<()> {
3768 let copilot = Copilot::global(cx)?;
3769 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3770 return None;
3771 }
3772
3773 if self.copilot_state.cycled {
3774 self.copilot_state.cycle_completions(direction);
3775 self.update_visible_copilot_suggestion(cx);
3776 } else {
3777 let cursor = self.selections.newest_anchor().head();
3778 let (buffer, buffer_position) =
3779 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3780 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3781 let completions = copilot
3782 .update(&mut cx, |copilot, cx| {
3783 copilot.completions_cycling(&buffer, buffer_position, cx)
3784 })
3785 .log_err()?
3786 .await;
3787
3788 this.update(&mut cx, |this, cx| {
3789 this.copilot_state.cycled = true;
3790 for completion in completions.log_err().into_iter().flatten() {
3791 this.copilot_state.push_completion(completion);
3792 }
3793 this.copilot_state.cycle_completions(direction);
3794 this.update_visible_copilot_suggestion(cx);
3795 })
3796 .log_err()?;
3797
3798 Some(())
3799 });
3800 }
3801
3802 Some(())
3803 }
3804
3805 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3806 if !self.has_active_copilot_suggestion(cx) {
3807 self.refresh_copilot_suggestions(false, cx);
3808 return;
3809 }
3810
3811 self.update_visible_copilot_suggestion(cx);
3812 }
3813
3814 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3815 self.show_cursor_names(cx);
3816 }
3817
3818 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3819 self.show_cursor_names = true;
3820 cx.notify();
3821 cx.spawn(|this, mut cx| async move {
3822 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3823 this.update(&mut cx, |this, cx| {
3824 this.show_cursor_names = false;
3825 cx.notify()
3826 })
3827 .ok()
3828 })
3829 .detach();
3830 }
3831
3832 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3833 if self.has_active_copilot_suggestion(cx) {
3834 self.cycle_copilot_suggestions(Direction::Next, cx);
3835 } else {
3836 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3837 if is_copilot_disabled {
3838 cx.propagate();
3839 }
3840 }
3841 }
3842
3843 fn previous_copilot_suggestion(
3844 &mut self,
3845 _: &copilot::PreviousSuggestion,
3846 cx: &mut ViewContext<Self>,
3847 ) {
3848 if self.has_active_copilot_suggestion(cx) {
3849 self.cycle_copilot_suggestions(Direction::Prev, cx);
3850 } else {
3851 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3852 if is_copilot_disabled {
3853 cx.propagate();
3854 }
3855 }
3856 }
3857
3858 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3859 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3860 if let Some((copilot, completion)) =
3861 Copilot::global(cx).zip(self.copilot_state.active_completion())
3862 {
3863 copilot
3864 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3865 .detach_and_log_err(cx);
3866
3867 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3868 }
3869 cx.emit(EditorEvent::InputHandled {
3870 utf16_range_to_replace: None,
3871 text: suggestion.text.to_string().into(),
3872 });
3873 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3874 cx.notify();
3875 true
3876 } else {
3877 false
3878 }
3879 }
3880
3881 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3882 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3883 if let Some(copilot) = Copilot::global(cx) {
3884 copilot
3885 .update(cx, |copilot, cx| {
3886 copilot.discard_completions(&self.copilot_state.completions, cx)
3887 })
3888 .detach_and_log_err(cx);
3889
3890 self.report_copilot_event(None, false, cx)
3891 }
3892
3893 self.display_map.update(cx, |map, cx| {
3894 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3895 });
3896 cx.notify();
3897 true
3898 } else {
3899 false
3900 }
3901 }
3902
3903 fn is_copilot_enabled_at(
3904 &self,
3905 location: Anchor,
3906 snapshot: &MultiBufferSnapshot,
3907 cx: &mut ViewContext<Self>,
3908 ) -> bool {
3909 let file = snapshot.file_at(location);
3910 let language = snapshot.language_at(location);
3911 let settings = all_language_settings(file, cx);
3912 self.show_copilot_suggestions
3913 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3914 }
3915
3916 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3917 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3918 let buffer = self.buffer.read(cx).read(cx);
3919 suggestion.position.is_valid(&buffer)
3920 } else {
3921 false
3922 }
3923 }
3924
3925 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3926 let suggestion = self.copilot_state.suggestion.take()?;
3927 self.display_map.update(cx, |map, cx| {
3928 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3929 });
3930 let buffer = self.buffer.read(cx).read(cx);
3931
3932 if suggestion.position.is_valid(&buffer) {
3933 Some(suggestion)
3934 } else {
3935 None
3936 }
3937 }
3938
3939 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3940 let snapshot = self.buffer.read(cx).snapshot(cx);
3941 let selection = self.selections.newest_anchor();
3942 let cursor = selection.head();
3943
3944 if self.context_menu.read().is_some()
3945 || !self.completion_tasks.is_empty()
3946 || selection.start != selection.end
3947 {
3948 self.discard_copilot_suggestion(cx);
3949 } else if let Some(text) = self
3950 .copilot_state
3951 .text_for_active_completion(cursor, &snapshot)
3952 {
3953 let text = Rope::from(text);
3954 let mut to_remove = Vec::new();
3955 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3956 to_remove.push(suggestion.id);
3957 }
3958
3959 let suggestion_inlay =
3960 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3961 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3962 self.display_map.update(cx, move |map, cx| {
3963 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3964 });
3965 cx.notify();
3966 } else {
3967 self.discard_copilot_suggestion(cx);
3968 }
3969 }
3970
3971 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3972 self.copilot_state = Default::default();
3973 self.discard_copilot_suggestion(cx);
3974 }
3975
3976 pub fn render_code_actions_indicator(
3977 &self,
3978 _style: &EditorStyle,
3979 is_active: bool,
3980 cx: &mut ViewContext<Self>,
3981 ) -> Option<IconButton> {
3982 if self.available_code_actions.is_some() {
3983 Some(
3984 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3985 .icon_size(IconSize::Small)
3986 .icon_color(Color::Muted)
3987 .selected(is_active)
3988 .on_click(cx.listener(|editor, _e, cx| {
3989 editor.toggle_code_actions(
3990 &ToggleCodeActions {
3991 deployed_from_indicator: true,
3992 },
3993 cx,
3994 );
3995 })),
3996 )
3997 } else {
3998 None
3999 }
4000 }
4001
4002 pub fn render_fold_indicators(
4003 &self,
4004 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4005 _style: &EditorStyle,
4006 gutter_hovered: bool,
4007 _line_height: Pixels,
4008 _gutter_margin: Pixels,
4009 editor_view: View<Editor>,
4010 ) -> Vec<Option<IconButton>> {
4011 fold_data
4012 .iter()
4013 .enumerate()
4014 .map(|(ix, fold_data)| {
4015 fold_data
4016 .map(|(fold_status, buffer_row, active)| {
4017 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4018 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4019 .on_click({
4020 let view = editor_view.clone();
4021 move |_e, cx| {
4022 view.update(cx, |editor, cx| match fold_status {
4023 FoldStatus::Folded => {
4024 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4025 }
4026 FoldStatus::Foldable => {
4027 editor.fold_at(&FoldAt { buffer_row }, cx);
4028 }
4029 })
4030 }
4031 })
4032 .icon_color(ui::Color::Muted)
4033 .icon_size(ui::IconSize::Small)
4034 .selected(fold_status == FoldStatus::Folded)
4035 .selected_icon(ui::IconName::ChevronRight)
4036 .size(ui::ButtonSize::None)
4037 })
4038 })
4039 .flatten()
4040 })
4041 .collect()
4042 }
4043
4044 pub fn context_menu_visible(&self) -> bool {
4045 self.context_menu
4046 .read()
4047 .as_ref()
4048 .map_or(false, |menu| menu.visible())
4049 }
4050
4051 pub fn render_context_menu(
4052 &self,
4053 cursor_position: DisplayPoint,
4054 style: &EditorStyle,
4055 max_height: Pixels,
4056 cx: &mut ViewContext<Editor>,
4057 ) -> Option<(DisplayPoint, AnyElement)> {
4058 self.context_menu.read().as_ref().map(|menu| {
4059 menu.render(
4060 cursor_position,
4061 style,
4062 max_height,
4063 self.workspace.as_ref().map(|(w, _)| w.clone()),
4064 cx,
4065 )
4066 })
4067 }
4068
4069 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4070 cx.notify();
4071 self.completion_tasks.clear();
4072 let context_menu = self.context_menu.write().take();
4073 if context_menu.is_some() {
4074 self.update_visible_copilot_suggestion(cx);
4075 }
4076 context_menu
4077 }
4078
4079 pub fn insert_snippet(
4080 &mut self,
4081 insertion_ranges: &[Range<usize>],
4082 snippet: Snippet,
4083 cx: &mut ViewContext<Self>,
4084 ) -> Result<()> {
4085 let tabstops = self.buffer.update(cx, |buffer, cx| {
4086 let snippet_text: Arc<str> = snippet.text.clone().into();
4087 buffer.edit(
4088 insertion_ranges
4089 .iter()
4090 .cloned()
4091 .map(|range| (range, snippet_text.clone())),
4092 Some(AutoindentMode::EachLine),
4093 cx,
4094 );
4095
4096 let snapshot = &*buffer.read(cx);
4097 let snippet = &snippet;
4098 snippet
4099 .tabstops
4100 .iter()
4101 .map(|tabstop| {
4102 let mut tabstop_ranges = tabstop
4103 .iter()
4104 .flat_map(|tabstop_range| {
4105 let mut delta = 0_isize;
4106 insertion_ranges.iter().map(move |insertion_range| {
4107 let insertion_start = insertion_range.start as isize + delta;
4108 delta +=
4109 snippet.text.len() as isize - insertion_range.len() as isize;
4110
4111 let start = snapshot.anchor_before(
4112 (insertion_start + tabstop_range.start) as usize,
4113 );
4114 let end = snapshot
4115 .anchor_after((insertion_start + tabstop_range.end) as usize);
4116 start..end
4117 })
4118 })
4119 .collect::<Vec<_>>();
4120 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4121 tabstop_ranges
4122 })
4123 .collect::<Vec<_>>()
4124 });
4125
4126 if let Some(tabstop) = tabstops.first() {
4127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4128 s.select_ranges(tabstop.iter().cloned());
4129 });
4130 self.snippet_stack.push(SnippetState {
4131 active_index: 0,
4132 ranges: tabstops,
4133 });
4134 }
4135
4136 Ok(())
4137 }
4138
4139 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4140 self.move_to_snippet_tabstop(Bias::Right, cx)
4141 }
4142
4143 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4144 self.move_to_snippet_tabstop(Bias::Left, cx)
4145 }
4146
4147 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4148 if let Some(mut snippet) = self.snippet_stack.pop() {
4149 match bias {
4150 Bias::Left => {
4151 if snippet.active_index > 0 {
4152 snippet.active_index -= 1;
4153 } else {
4154 self.snippet_stack.push(snippet);
4155 return false;
4156 }
4157 }
4158 Bias::Right => {
4159 if snippet.active_index + 1 < snippet.ranges.len() {
4160 snippet.active_index += 1;
4161 } else {
4162 self.snippet_stack.push(snippet);
4163 return false;
4164 }
4165 }
4166 }
4167 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4168 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4169 s.select_anchor_ranges(current_ranges.iter().cloned())
4170 });
4171 // If snippet state is not at the last tabstop, push it back on the stack
4172 if snippet.active_index + 1 < snippet.ranges.len() {
4173 self.snippet_stack.push(snippet);
4174 }
4175 return true;
4176 }
4177 }
4178
4179 false
4180 }
4181
4182 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4183 self.transact(cx, |this, cx| {
4184 this.select_all(&SelectAll, cx);
4185 this.insert("", cx);
4186 });
4187 }
4188
4189 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4190 self.transact(cx, |this, cx| {
4191 this.select_autoclose_pair(cx);
4192 let mut selections = this.selections.all::<Point>(cx);
4193 if !this.selections.line_mode {
4194 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4195 for selection in &mut selections {
4196 if selection.is_empty() {
4197 let old_head = selection.head();
4198 let mut new_head =
4199 movement::left(&display_map, old_head.to_display_point(&display_map))
4200 .to_point(&display_map);
4201 if let Some((buffer, line_buffer_range)) = display_map
4202 .buffer_snapshot
4203 .buffer_line_for_row(old_head.row)
4204 {
4205 let indent_size =
4206 buffer.indent_size_for_line(line_buffer_range.start.row);
4207 let indent_len = match indent_size.kind {
4208 IndentKind::Space => {
4209 buffer.settings_at(line_buffer_range.start, cx).tab_size
4210 }
4211 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4212 };
4213 if old_head.column <= indent_size.len && old_head.column > 0 {
4214 let indent_len = indent_len.get();
4215 new_head = cmp::min(
4216 new_head,
4217 Point::new(
4218 old_head.row,
4219 ((old_head.column - 1) / indent_len) * indent_len,
4220 ),
4221 );
4222 }
4223 }
4224
4225 selection.set_head(new_head, SelectionGoal::None);
4226 }
4227 }
4228 }
4229
4230 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4231 this.insert("", cx);
4232 this.refresh_copilot_suggestions(true, cx);
4233 });
4234 }
4235
4236 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4237 self.transact(cx, |this, cx| {
4238 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4239 let line_mode = s.line_mode;
4240 s.move_with(|map, selection| {
4241 if selection.is_empty() && !line_mode {
4242 let cursor = movement::right(map, selection.head());
4243 selection.end = cursor;
4244 selection.reversed = true;
4245 selection.goal = SelectionGoal::None;
4246 }
4247 })
4248 });
4249 this.insert("", cx);
4250 this.refresh_copilot_suggestions(true, cx);
4251 });
4252 }
4253
4254 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4255 if self.move_to_prev_snippet_tabstop(cx) {
4256 return;
4257 }
4258
4259 self.outdent(&Outdent, cx);
4260 }
4261
4262 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4263 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4264 return;
4265 }
4266
4267 let mut selections = self.selections.all_adjusted(cx);
4268 let buffer = self.buffer.read(cx);
4269 let snapshot = buffer.snapshot(cx);
4270 let rows_iter = selections.iter().map(|s| s.head().row);
4271 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4272
4273 let mut edits = Vec::new();
4274 let mut prev_edited_row = 0;
4275 let mut row_delta = 0;
4276 for selection in &mut selections {
4277 if selection.start.row != prev_edited_row {
4278 row_delta = 0;
4279 }
4280 prev_edited_row = selection.end.row;
4281
4282 // If the selection is non-empty, then increase the indentation of the selected lines.
4283 if !selection.is_empty() {
4284 row_delta =
4285 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4286 continue;
4287 }
4288
4289 // If the selection is empty and the cursor is in the leading whitespace before the
4290 // suggested indentation, then auto-indent the line.
4291 let cursor = selection.head();
4292 let current_indent = snapshot.indent_size_for_line(cursor.row);
4293 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4294 if cursor.column < suggested_indent.len
4295 && cursor.column <= current_indent.len
4296 && current_indent.len <= suggested_indent.len
4297 {
4298 selection.start = Point::new(cursor.row, suggested_indent.len);
4299 selection.end = selection.start;
4300 if row_delta == 0 {
4301 edits.extend(Buffer::edit_for_indent_size_adjustment(
4302 cursor.row,
4303 current_indent,
4304 suggested_indent,
4305 ));
4306 row_delta = suggested_indent.len - current_indent.len;
4307 }
4308 continue;
4309 }
4310 }
4311
4312 // Accept copilot suggestion if there is only one selection and the cursor is not
4313 // in the leading whitespace.
4314 if self.selections.count() == 1
4315 && cursor.column >= current_indent.len
4316 && self.has_active_copilot_suggestion(cx)
4317 {
4318 self.accept_copilot_suggestion(cx);
4319 return;
4320 }
4321
4322 // Otherwise, insert a hard or soft tab.
4323 let settings = buffer.settings_at(cursor, cx);
4324 let tab_size = if settings.hard_tabs {
4325 IndentSize::tab()
4326 } else {
4327 let tab_size = settings.tab_size.get();
4328 let char_column = snapshot
4329 .text_for_range(Point::new(cursor.row, 0)..cursor)
4330 .flat_map(str::chars)
4331 .count()
4332 + row_delta as usize;
4333 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4334 IndentSize::spaces(chars_to_next_tab_stop)
4335 };
4336 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4337 selection.end = selection.start;
4338 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4339 row_delta += tab_size.len;
4340 }
4341
4342 self.transact(cx, |this, cx| {
4343 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4344 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4345 this.refresh_copilot_suggestions(true, cx);
4346 });
4347 }
4348
4349 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4350 let mut selections = self.selections.all::<Point>(cx);
4351 let mut prev_edited_row = 0;
4352 let mut row_delta = 0;
4353 let mut edits = Vec::new();
4354 let buffer = self.buffer.read(cx);
4355 let snapshot = buffer.snapshot(cx);
4356 for selection in &mut selections {
4357 if selection.start.row != prev_edited_row {
4358 row_delta = 0;
4359 }
4360 prev_edited_row = selection.end.row;
4361
4362 row_delta =
4363 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4364 }
4365
4366 self.transact(cx, |this, cx| {
4367 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4368 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4369 });
4370 }
4371
4372 fn indent_selection(
4373 buffer: &MultiBuffer,
4374 snapshot: &MultiBufferSnapshot,
4375 selection: &mut Selection<Point>,
4376 edits: &mut Vec<(Range<Point>, String)>,
4377 delta_for_start_row: u32,
4378 cx: &AppContext,
4379 ) -> u32 {
4380 let settings = buffer.settings_at(selection.start, cx);
4381 let tab_size = settings.tab_size.get();
4382 let indent_kind = if settings.hard_tabs {
4383 IndentKind::Tab
4384 } else {
4385 IndentKind::Space
4386 };
4387 let mut start_row = selection.start.row;
4388 let mut end_row = selection.end.row + 1;
4389
4390 // If a selection ends at the beginning of a line, don't indent
4391 // that last line.
4392 if selection.end.column == 0 {
4393 end_row -= 1;
4394 }
4395
4396 // Avoid re-indenting a row that has already been indented by a
4397 // previous selection, but still update this selection's column
4398 // to reflect that indentation.
4399 if delta_for_start_row > 0 {
4400 start_row += 1;
4401 selection.start.column += delta_for_start_row;
4402 if selection.end.row == selection.start.row {
4403 selection.end.column += delta_for_start_row;
4404 }
4405 }
4406
4407 let mut delta_for_end_row = 0;
4408 for row in start_row..end_row {
4409 let current_indent = snapshot.indent_size_for_line(row);
4410 let indent_delta = match (current_indent.kind, indent_kind) {
4411 (IndentKind::Space, IndentKind::Space) => {
4412 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4413 IndentSize::spaces(columns_to_next_tab_stop)
4414 }
4415 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4416 (_, IndentKind::Tab) => IndentSize::tab(),
4417 };
4418
4419 let row_start = Point::new(row, 0);
4420 edits.push((
4421 row_start..row_start,
4422 indent_delta.chars().collect::<String>(),
4423 ));
4424
4425 // Update this selection's endpoints to reflect the indentation.
4426 if row == selection.start.row {
4427 selection.start.column += indent_delta.len;
4428 }
4429 if row == selection.end.row {
4430 selection.end.column += indent_delta.len;
4431 delta_for_end_row = indent_delta.len;
4432 }
4433 }
4434
4435 if selection.start.row == selection.end.row {
4436 delta_for_start_row + delta_for_end_row
4437 } else {
4438 delta_for_end_row
4439 }
4440 }
4441
4442 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4443 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4444 let selections = self.selections.all::<Point>(cx);
4445 let mut deletion_ranges = Vec::new();
4446 let mut last_outdent = None;
4447 {
4448 let buffer = self.buffer.read(cx);
4449 let snapshot = buffer.snapshot(cx);
4450 for selection in &selections {
4451 let settings = buffer.settings_at(selection.start, cx);
4452 let tab_size = settings.tab_size.get();
4453 let mut rows = selection.spanned_rows(false, &display_map);
4454
4455 // Avoid re-outdenting a row that has already been outdented by a
4456 // previous selection.
4457 if let Some(last_row) = last_outdent {
4458 if last_row == rows.start {
4459 rows.start += 1;
4460 }
4461 }
4462
4463 for row in rows {
4464 let indent_size = snapshot.indent_size_for_line(row);
4465 if indent_size.len > 0 {
4466 let deletion_len = match indent_size.kind {
4467 IndentKind::Space => {
4468 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4469 if columns_to_prev_tab_stop == 0 {
4470 tab_size
4471 } else {
4472 columns_to_prev_tab_stop
4473 }
4474 }
4475 IndentKind::Tab => 1,
4476 };
4477 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4478 last_outdent = Some(row);
4479 }
4480 }
4481 }
4482 }
4483
4484 self.transact(cx, |this, cx| {
4485 this.buffer.update(cx, |buffer, cx| {
4486 let empty_str: Arc<str> = "".into();
4487 buffer.edit(
4488 deletion_ranges
4489 .into_iter()
4490 .map(|range| (range, empty_str.clone())),
4491 None,
4492 cx,
4493 );
4494 });
4495 let selections = this.selections.all::<usize>(cx);
4496 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4497 });
4498 }
4499
4500 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4502 let selections = self.selections.all::<Point>(cx);
4503
4504 let mut new_cursors = Vec::new();
4505 let mut edit_ranges = Vec::new();
4506 let mut selections = selections.iter().peekable();
4507 while let Some(selection) = selections.next() {
4508 let mut rows = selection.spanned_rows(false, &display_map);
4509 let goal_display_column = selection.head().to_display_point(&display_map).column();
4510
4511 // Accumulate contiguous regions of rows that we want to delete.
4512 while let Some(next_selection) = selections.peek() {
4513 let next_rows = next_selection.spanned_rows(false, &display_map);
4514 if next_rows.start <= rows.end {
4515 rows.end = next_rows.end;
4516 selections.next().unwrap();
4517 } else {
4518 break;
4519 }
4520 }
4521
4522 let buffer = &display_map.buffer_snapshot;
4523 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4524 let edit_end;
4525 let cursor_buffer_row;
4526 if buffer.max_point().row >= rows.end {
4527 // If there's a line after the range, delete the \n from the end of the row range
4528 // and position the cursor on the next line.
4529 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4530 cursor_buffer_row = rows.end;
4531 } else {
4532 // If there isn't a line after the range, delete the \n from the line before the
4533 // start of the row range and position the cursor there.
4534 edit_start = edit_start.saturating_sub(1);
4535 edit_end = buffer.len();
4536 cursor_buffer_row = rows.start.saturating_sub(1);
4537 }
4538
4539 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4540 *cursor.column_mut() =
4541 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4542
4543 new_cursors.push((
4544 selection.id,
4545 buffer.anchor_after(cursor.to_point(&display_map)),
4546 ));
4547 edit_ranges.push(edit_start..edit_end);
4548 }
4549
4550 self.transact(cx, |this, cx| {
4551 let buffer = this.buffer.update(cx, |buffer, cx| {
4552 let empty_str: Arc<str> = "".into();
4553 buffer.edit(
4554 edit_ranges
4555 .into_iter()
4556 .map(|range| (range, empty_str.clone())),
4557 None,
4558 cx,
4559 );
4560 buffer.snapshot(cx)
4561 });
4562 let new_selections = new_cursors
4563 .into_iter()
4564 .map(|(id, cursor)| {
4565 let cursor = cursor.to_point(&buffer);
4566 Selection {
4567 id,
4568 start: cursor,
4569 end: cursor,
4570 reversed: false,
4571 goal: SelectionGoal::None,
4572 }
4573 })
4574 .collect();
4575
4576 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4577 s.select(new_selections);
4578 });
4579 });
4580 }
4581
4582 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4583 let mut row_ranges = Vec::<Range<u32>>::new();
4584 for selection in self.selections.all::<Point>(cx) {
4585 let start = selection.start.row;
4586 let end = if selection.start.row == selection.end.row {
4587 selection.start.row + 1
4588 } else {
4589 selection.end.row
4590 };
4591
4592 if let Some(last_row_range) = row_ranges.last_mut() {
4593 if start <= last_row_range.end {
4594 last_row_range.end = end;
4595 continue;
4596 }
4597 }
4598 row_ranges.push(start..end);
4599 }
4600
4601 let snapshot = self.buffer.read(cx).snapshot(cx);
4602 let mut cursor_positions = Vec::new();
4603 for row_range in &row_ranges {
4604 let anchor = snapshot.anchor_before(Point::new(
4605 row_range.end - 1,
4606 snapshot.line_len(row_range.end - 1),
4607 ));
4608 cursor_positions.push(anchor.clone()..anchor);
4609 }
4610
4611 self.transact(cx, |this, cx| {
4612 for row_range in row_ranges.into_iter().rev() {
4613 for row in row_range.rev() {
4614 let end_of_line = Point::new(row, snapshot.line_len(row));
4615 let indent = snapshot.indent_size_for_line(row + 1);
4616 let start_of_next_line = Point::new(row + 1, indent.len);
4617
4618 let replace = if snapshot.line_len(row + 1) > indent.len {
4619 " "
4620 } else {
4621 ""
4622 };
4623
4624 this.buffer.update(cx, |buffer, cx| {
4625 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4626 });
4627 }
4628 }
4629
4630 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4631 s.select_anchor_ranges(cursor_positions)
4632 });
4633 });
4634 }
4635
4636 pub fn sort_lines_case_sensitive(
4637 &mut self,
4638 _: &SortLinesCaseSensitive,
4639 cx: &mut ViewContext<Self>,
4640 ) {
4641 self.manipulate_lines(cx, |lines| lines.sort())
4642 }
4643
4644 pub fn sort_lines_case_insensitive(
4645 &mut self,
4646 _: &SortLinesCaseInsensitive,
4647 cx: &mut ViewContext<Self>,
4648 ) {
4649 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4650 }
4651
4652 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4653 self.manipulate_lines(cx, |lines| lines.reverse())
4654 }
4655
4656 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4657 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4658 }
4659
4660 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4661 where
4662 Fn: FnMut(&mut [&str]),
4663 {
4664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4665 let buffer = self.buffer.read(cx).snapshot(cx);
4666
4667 let mut edits = Vec::new();
4668
4669 let selections = self.selections.all::<Point>(cx);
4670 let mut selections = selections.iter().peekable();
4671 let mut contiguous_row_selections = Vec::new();
4672 let mut new_selections = Vec::new();
4673
4674 while let Some(selection) = selections.next() {
4675 let (start_row, end_row) = consume_contiguous_rows(
4676 &mut contiguous_row_selections,
4677 selection,
4678 &display_map,
4679 &mut selections,
4680 );
4681
4682 let start_point = Point::new(start_row, 0);
4683 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4684 let text = buffer
4685 .text_for_range(start_point..end_point)
4686 .collect::<String>();
4687 let mut lines = text.split("\n").collect_vec();
4688
4689 let lines_len = lines.len();
4690 callback(&mut lines);
4691
4692 // This is a current limitation with selections.
4693 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4694 debug_assert!(
4695 lines.len() == lines_len,
4696 "callback should not change the number of lines"
4697 );
4698
4699 edits.push((start_point..end_point, lines.join("\n")));
4700 let start_anchor = buffer.anchor_after(start_point);
4701 let end_anchor = buffer.anchor_before(end_point);
4702
4703 // Make selection and push
4704 new_selections.push(Selection {
4705 id: selection.id,
4706 start: start_anchor.to_offset(&buffer),
4707 end: end_anchor.to_offset(&buffer),
4708 goal: SelectionGoal::None,
4709 reversed: selection.reversed,
4710 });
4711 }
4712
4713 self.transact(cx, |this, cx| {
4714 this.buffer.update(cx, |buffer, cx| {
4715 buffer.edit(edits, None, cx);
4716 });
4717
4718 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4719 s.select(new_selections);
4720 });
4721
4722 this.request_autoscroll(Autoscroll::fit(), cx);
4723 });
4724 }
4725
4726 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4727 self.manipulate_text(cx, |text| text.to_uppercase())
4728 }
4729
4730 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4731 self.manipulate_text(cx, |text| text.to_lowercase())
4732 }
4733
4734 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4735 self.manipulate_text(cx, |text| {
4736 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4737 // https://github.com/rutrum/convert-case/issues/16
4738 text.split("\n")
4739 .map(|line| line.to_case(Case::Title))
4740 .join("\n")
4741 })
4742 }
4743
4744 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4745 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4746 }
4747
4748 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4749 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4750 }
4751
4752 pub fn convert_to_upper_camel_case(
4753 &mut self,
4754 _: &ConvertToUpperCamelCase,
4755 cx: &mut ViewContext<Self>,
4756 ) {
4757 self.manipulate_text(cx, |text| {
4758 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4759 // https://github.com/rutrum/convert-case/issues/16
4760 text.split("\n")
4761 .map(|line| line.to_case(Case::UpperCamel))
4762 .join("\n")
4763 })
4764 }
4765
4766 pub fn convert_to_lower_camel_case(
4767 &mut self,
4768 _: &ConvertToLowerCamelCase,
4769 cx: &mut ViewContext<Self>,
4770 ) {
4771 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4772 }
4773
4774 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4775 where
4776 Fn: FnMut(&str) -> String,
4777 {
4778 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4779 let buffer = self.buffer.read(cx).snapshot(cx);
4780
4781 let mut new_selections = Vec::new();
4782 let mut edits = Vec::new();
4783 let mut selection_adjustment = 0i32;
4784
4785 for selection in self.selections.all::<usize>(cx) {
4786 let selection_is_empty = selection.is_empty();
4787
4788 let (start, end) = if selection_is_empty {
4789 let word_range = movement::surrounding_word(
4790 &display_map,
4791 selection.start.to_display_point(&display_map),
4792 );
4793 let start = word_range.start.to_offset(&display_map, Bias::Left);
4794 let end = word_range.end.to_offset(&display_map, Bias::Left);
4795 (start, end)
4796 } else {
4797 (selection.start, selection.end)
4798 };
4799
4800 let text = buffer.text_for_range(start..end).collect::<String>();
4801 let old_length = text.len() as i32;
4802 let text = callback(&text);
4803
4804 new_selections.push(Selection {
4805 start: (start as i32 - selection_adjustment) as usize,
4806 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4807 goal: SelectionGoal::None,
4808 ..selection
4809 });
4810
4811 selection_adjustment += old_length - text.len() as i32;
4812
4813 edits.push((start..end, text));
4814 }
4815
4816 self.transact(cx, |this, cx| {
4817 this.buffer.update(cx, |buffer, cx| {
4818 buffer.edit(edits, None, cx);
4819 });
4820
4821 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4822 s.select(new_selections);
4823 });
4824
4825 this.request_autoscroll(Autoscroll::fit(), cx);
4826 });
4827 }
4828
4829 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4830 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4831 let buffer = &display_map.buffer_snapshot;
4832 let selections = self.selections.all::<Point>(cx);
4833
4834 let mut edits = Vec::new();
4835 let mut selections_iter = selections.iter().peekable();
4836 while let Some(selection) = selections_iter.next() {
4837 // Avoid duplicating the same lines twice.
4838 let mut rows = selection.spanned_rows(false, &display_map);
4839
4840 while let Some(next_selection) = selections_iter.peek() {
4841 let next_rows = next_selection.spanned_rows(false, &display_map);
4842 if next_rows.start < rows.end {
4843 rows.end = next_rows.end;
4844 selections_iter.next().unwrap();
4845 } else {
4846 break;
4847 }
4848 }
4849
4850 // Copy the text from the selected row region and splice it at the start of the region.
4851 let start = Point::new(rows.start, 0);
4852 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4853 let text = buffer
4854 .text_for_range(start..end)
4855 .chain(Some("\n"))
4856 .collect::<String>();
4857 edits.push((start..start, text));
4858 }
4859
4860 self.transact(cx, |this, cx| {
4861 this.buffer.update(cx, |buffer, cx| {
4862 buffer.edit(edits, None, cx);
4863 });
4864
4865 this.request_autoscroll(Autoscroll::fit(), cx);
4866 });
4867 }
4868
4869 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4870 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4871 let buffer = self.buffer.read(cx).snapshot(cx);
4872
4873 let mut edits = Vec::new();
4874 let mut unfold_ranges = Vec::new();
4875 let mut refold_ranges = Vec::new();
4876
4877 let selections = self.selections.all::<Point>(cx);
4878 let mut selections = selections.iter().peekable();
4879 let mut contiguous_row_selections = Vec::new();
4880 let mut new_selections = Vec::new();
4881
4882 while let Some(selection) = selections.next() {
4883 // Find all the selections that span a contiguous row range
4884 let (start_row, end_row) = consume_contiguous_rows(
4885 &mut contiguous_row_selections,
4886 selection,
4887 &display_map,
4888 &mut selections,
4889 );
4890
4891 // Move the text spanned by the row range to be before the line preceding the row range
4892 if start_row > 0 {
4893 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4894 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4895 let insertion_point = display_map
4896 .prev_line_boundary(Point::new(start_row - 1, 0))
4897 .0;
4898
4899 // Don't move lines across excerpts
4900 if buffer
4901 .excerpt_boundaries_in_range((
4902 Bound::Excluded(insertion_point),
4903 Bound::Included(range_to_move.end),
4904 ))
4905 .next()
4906 .is_none()
4907 {
4908 let text = buffer
4909 .text_for_range(range_to_move.clone())
4910 .flat_map(|s| s.chars())
4911 .skip(1)
4912 .chain(['\n'])
4913 .collect::<String>();
4914
4915 edits.push((
4916 buffer.anchor_after(range_to_move.start)
4917 ..buffer.anchor_before(range_to_move.end),
4918 String::new(),
4919 ));
4920 let insertion_anchor = buffer.anchor_after(insertion_point);
4921 edits.push((insertion_anchor..insertion_anchor, text));
4922
4923 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4924
4925 // Move selections up
4926 new_selections.extend(contiguous_row_selections.drain(..).map(
4927 |mut selection| {
4928 selection.start.row -= row_delta;
4929 selection.end.row -= row_delta;
4930 selection
4931 },
4932 ));
4933
4934 // Move folds up
4935 unfold_ranges.push(range_to_move.clone());
4936 for fold in display_map.folds_in_range(
4937 buffer.anchor_before(range_to_move.start)
4938 ..buffer.anchor_after(range_to_move.end),
4939 ) {
4940 let mut start = fold.range.start.to_point(&buffer);
4941 let mut end = fold.range.end.to_point(&buffer);
4942 start.row -= row_delta;
4943 end.row -= row_delta;
4944 refold_ranges.push(start..end);
4945 }
4946 }
4947 }
4948
4949 // If we didn't move line(s), preserve the existing selections
4950 new_selections.append(&mut contiguous_row_selections);
4951 }
4952
4953 self.transact(cx, |this, cx| {
4954 this.unfold_ranges(unfold_ranges, true, true, cx);
4955 this.buffer.update(cx, |buffer, cx| {
4956 for (range, text) in edits {
4957 buffer.edit([(range, text)], None, cx);
4958 }
4959 });
4960 this.fold_ranges(refold_ranges, true, cx);
4961 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4962 s.select(new_selections);
4963 })
4964 });
4965 }
4966
4967 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4968 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4969 let buffer = self.buffer.read(cx).snapshot(cx);
4970
4971 let mut edits = Vec::new();
4972 let mut unfold_ranges = Vec::new();
4973 let mut refold_ranges = Vec::new();
4974
4975 let selections = self.selections.all::<Point>(cx);
4976 let mut selections = selections.iter().peekable();
4977 let mut contiguous_row_selections = Vec::new();
4978 let mut new_selections = Vec::new();
4979
4980 while let Some(selection) = selections.next() {
4981 // Find all the selections that span a contiguous row range
4982 let (start_row, end_row) = consume_contiguous_rows(
4983 &mut contiguous_row_selections,
4984 selection,
4985 &display_map,
4986 &mut selections,
4987 );
4988
4989 // Move the text spanned by the row range to be after the last line of the row range
4990 if end_row <= buffer.max_point().row {
4991 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4992 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4993
4994 // Don't move lines across excerpt boundaries
4995 if buffer
4996 .excerpt_boundaries_in_range((
4997 Bound::Excluded(range_to_move.start),
4998 Bound::Included(insertion_point),
4999 ))
5000 .next()
5001 .is_none()
5002 {
5003 let mut text = String::from("\n");
5004 text.extend(buffer.text_for_range(range_to_move.clone()));
5005 text.pop(); // Drop trailing newline
5006 edits.push((
5007 buffer.anchor_after(range_to_move.start)
5008 ..buffer.anchor_before(range_to_move.end),
5009 String::new(),
5010 ));
5011 let insertion_anchor = buffer.anchor_after(insertion_point);
5012 edits.push((insertion_anchor..insertion_anchor, text));
5013
5014 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5015
5016 // Move selections down
5017 new_selections.extend(contiguous_row_selections.drain(..).map(
5018 |mut selection| {
5019 selection.start.row += row_delta;
5020 selection.end.row += row_delta;
5021 selection
5022 },
5023 ));
5024
5025 // Move folds down
5026 unfold_ranges.push(range_to_move.clone());
5027 for fold in display_map.folds_in_range(
5028 buffer.anchor_before(range_to_move.start)
5029 ..buffer.anchor_after(range_to_move.end),
5030 ) {
5031 let mut start = fold.range.start.to_point(&buffer);
5032 let mut end = fold.range.end.to_point(&buffer);
5033 start.row += row_delta;
5034 end.row += row_delta;
5035 refold_ranges.push(start..end);
5036 }
5037 }
5038 }
5039
5040 // If we didn't move line(s), preserve the existing selections
5041 new_selections.append(&mut contiguous_row_selections);
5042 }
5043
5044 self.transact(cx, |this, cx| {
5045 this.unfold_ranges(unfold_ranges, true, true, cx);
5046 this.buffer.update(cx, |buffer, cx| {
5047 for (range, text) in edits {
5048 buffer.edit([(range, text)], None, cx);
5049 }
5050 });
5051 this.fold_ranges(refold_ranges, true, cx);
5052 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5053 });
5054 }
5055
5056 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5057 let text_layout_details = &self.text_layout_details(cx);
5058 self.transact(cx, |this, cx| {
5059 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5060 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5061 let line_mode = s.line_mode;
5062 s.move_with(|display_map, selection| {
5063 if !selection.is_empty() || line_mode {
5064 return;
5065 }
5066
5067 let mut head = selection.head();
5068 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5069 if head.column() == display_map.line_len(head.row()) {
5070 transpose_offset = display_map
5071 .buffer_snapshot
5072 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5073 }
5074
5075 if transpose_offset == 0 {
5076 return;
5077 }
5078
5079 *head.column_mut() += 1;
5080 head = display_map.clip_point(head, Bias::Right);
5081 let goal = SelectionGoal::HorizontalPosition(
5082 display_map
5083 .x_for_display_point(head, &text_layout_details)
5084 .into(),
5085 );
5086 selection.collapse_to(head, goal);
5087
5088 let transpose_start = display_map
5089 .buffer_snapshot
5090 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5091 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5092 let transpose_end = display_map
5093 .buffer_snapshot
5094 .clip_offset(transpose_offset + 1, Bias::Right);
5095 if let Some(ch) =
5096 display_map.buffer_snapshot.chars_at(transpose_start).next()
5097 {
5098 edits.push((transpose_start..transpose_offset, String::new()));
5099 edits.push((transpose_end..transpose_end, ch.to_string()));
5100 }
5101 }
5102 });
5103 edits
5104 });
5105 this.buffer
5106 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5107 let selections = this.selections.all::<usize>(cx);
5108 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5109 s.select(selections);
5110 });
5111 });
5112 }
5113
5114 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5115 let mut text = String::new();
5116 let buffer = self.buffer.read(cx).snapshot(cx);
5117 let mut selections = self.selections.all::<Point>(cx);
5118 let mut clipboard_selections = Vec::with_capacity(selections.len());
5119 {
5120 let max_point = buffer.max_point();
5121 let mut is_first = true;
5122 for selection in &mut selections {
5123 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5124 if is_entire_line {
5125 selection.start = Point::new(selection.start.row, 0);
5126 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5127 selection.goal = SelectionGoal::None;
5128 }
5129 if is_first {
5130 is_first = false;
5131 } else {
5132 text += "\n";
5133 }
5134 let mut len = 0;
5135 for chunk in buffer.text_for_range(selection.start..selection.end) {
5136 text.push_str(chunk);
5137 len += chunk.len();
5138 }
5139 clipboard_selections.push(ClipboardSelection {
5140 len,
5141 is_entire_line,
5142 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5143 });
5144 }
5145 }
5146
5147 self.transact(cx, |this, cx| {
5148 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5149 s.select(selections);
5150 });
5151 this.insert("", cx);
5152 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5153 });
5154 }
5155
5156 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5157 let selections = self.selections.all::<Point>(cx);
5158 let buffer = self.buffer.read(cx).read(cx);
5159 let mut text = String::new();
5160
5161 let mut clipboard_selections = Vec::with_capacity(selections.len());
5162 {
5163 let max_point = buffer.max_point();
5164 let mut is_first = true;
5165 for selection in selections.iter() {
5166 let mut start = selection.start;
5167 let mut end = selection.end;
5168 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5169 if is_entire_line {
5170 start = Point::new(start.row, 0);
5171 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5172 }
5173 if is_first {
5174 is_first = false;
5175 } else {
5176 text += "\n";
5177 }
5178 let mut len = 0;
5179 for chunk in buffer.text_for_range(start..end) {
5180 text.push_str(chunk);
5181 len += chunk.len();
5182 }
5183 clipboard_selections.push(ClipboardSelection {
5184 len,
5185 is_entire_line,
5186 first_line_indent: buffer.indent_size_for_line(start.row).len,
5187 });
5188 }
5189 }
5190
5191 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5192 }
5193
5194 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5195 if self.read_only(cx) {
5196 return;
5197 }
5198
5199 self.transact(cx, |this, cx| {
5200 if let Some(item) = cx.read_from_clipboard() {
5201 let clipboard_text = Cow::Borrowed(item.text());
5202 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5203 let old_selections = this.selections.all::<usize>(cx);
5204 let all_selections_were_entire_line =
5205 clipboard_selections.iter().all(|s| s.is_entire_line);
5206 let first_selection_indent_column =
5207 clipboard_selections.first().map(|s| s.first_line_indent);
5208 if clipboard_selections.len() != old_selections.len() {
5209 clipboard_selections.drain(..);
5210 }
5211
5212 this.buffer.update(cx, |buffer, cx| {
5213 let snapshot = buffer.read(cx);
5214 let mut start_offset = 0;
5215 let mut edits = Vec::new();
5216 let mut original_indent_columns = Vec::new();
5217 let line_mode = this.selections.line_mode;
5218 for (ix, selection) in old_selections.iter().enumerate() {
5219 let to_insert;
5220 let entire_line;
5221 let original_indent_column;
5222 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5223 let end_offset = start_offset + clipboard_selection.len;
5224 to_insert = &clipboard_text[start_offset..end_offset];
5225 entire_line = clipboard_selection.is_entire_line;
5226 start_offset = end_offset + 1;
5227 original_indent_column =
5228 Some(clipboard_selection.first_line_indent);
5229 } else {
5230 to_insert = clipboard_text.as_str();
5231 entire_line = all_selections_were_entire_line;
5232 original_indent_column = first_selection_indent_column
5233 }
5234
5235 // If the corresponding selection was empty when this slice of the
5236 // clipboard text was written, then the entire line containing the
5237 // selection was copied. If this selection is also currently empty,
5238 // then paste the line before the current line of the buffer.
5239 let range = if selection.is_empty() && !line_mode && entire_line {
5240 let column = selection.start.to_point(&snapshot).column as usize;
5241 let line_start = selection.start - column;
5242 line_start..line_start
5243 } else {
5244 selection.range()
5245 };
5246
5247 edits.push((range, to_insert));
5248 original_indent_columns.extend(original_indent_column);
5249 }
5250 drop(snapshot);
5251
5252 buffer.edit(
5253 edits,
5254 Some(AutoindentMode::Block {
5255 original_indent_columns,
5256 }),
5257 cx,
5258 );
5259 });
5260
5261 let selections = this.selections.all::<usize>(cx);
5262 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5263 } else {
5264 this.insert(&clipboard_text, cx);
5265 }
5266 }
5267 });
5268 }
5269
5270 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5271 if self.read_only(cx) {
5272 return;
5273 }
5274
5275 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5276 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5277 self.change_selections(None, cx, |s| {
5278 s.select_anchors(selections.to_vec());
5279 });
5280 }
5281 self.request_autoscroll(Autoscroll::fit(), cx);
5282 self.unmark_text(cx);
5283 self.refresh_copilot_suggestions(true, cx);
5284 cx.emit(EditorEvent::Edited);
5285 }
5286 }
5287
5288 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5289 if self.read_only(cx) {
5290 return;
5291 }
5292
5293 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5294 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5295 {
5296 self.change_selections(None, cx, |s| {
5297 s.select_anchors(selections.to_vec());
5298 });
5299 }
5300 self.request_autoscroll(Autoscroll::fit(), cx);
5301 self.unmark_text(cx);
5302 self.refresh_copilot_suggestions(true, cx);
5303 cx.emit(EditorEvent::Edited);
5304 }
5305 }
5306
5307 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5308 self.buffer
5309 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5310 }
5311
5312 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5313 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5314 let line_mode = s.line_mode;
5315 s.move_with(|map, selection| {
5316 let cursor = if selection.is_empty() && !line_mode {
5317 movement::left(map, selection.start)
5318 } else {
5319 selection.start
5320 };
5321 selection.collapse_to(cursor, SelectionGoal::None);
5322 });
5323 })
5324 }
5325
5326 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5328 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5329 })
5330 }
5331
5332 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5333 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5334 let line_mode = s.line_mode;
5335 s.move_with(|map, selection| {
5336 let cursor = if selection.is_empty() && !line_mode {
5337 movement::right(map, selection.end)
5338 } else {
5339 selection.end
5340 };
5341 selection.collapse_to(cursor, SelectionGoal::None)
5342 });
5343 })
5344 }
5345
5346 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5347 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5348 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5349 })
5350 }
5351
5352 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5353 if self.take_rename(true, cx).is_some() {
5354 return;
5355 }
5356
5357 if matches!(self.mode, EditorMode::SingleLine) {
5358 cx.propagate();
5359 return;
5360 }
5361
5362 let text_layout_details = &self.text_layout_details(cx);
5363
5364 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5365 let line_mode = s.line_mode;
5366 s.move_with(|map, selection| {
5367 if !selection.is_empty() && !line_mode {
5368 selection.goal = SelectionGoal::None;
5369 }
5370 let (cursor, goal) = movement::up(
5371 map,
5372 selection.start,
5373 selection.goal,
5374 false,
5375 &text_layout_details,
5376 );
5377 selection.collapse_to(cursor, goal);
5378 });
5379 })
5380 }
5381
5382 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5383 if self.take_rename(true, cx).is_some() {
5384 return;
5385 }
5386
5387 if matches!(self.mode, EditorMode::SingleLine) {
5388 cx.propagate();
5389 return;
5390 }
5391
5392 let text_layout_details = &self.text_layout_details(cx);
5393
5394 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5395 let line_mode = s.line_mode;
5396 s.move_with(|map, selection| {
5397 if !selection.is_empty() && !line_mode {
5398 selection.goal = SelectionGoal::None;
5399 }
5400 let (cursor, goal) = movement::up_by_rows(
5401 map,
5402 selection.start,
5403 action.lines,
5404 selection.goal,
5405 false,
5406 &text_layout_details,
5407 );
5408 selection.collapse_to(cursor, goal);
5409 });
5410 })
5411 }
5412
5413 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5414 if self.take_rename(true, cx).is_some() {
5415 return;
5416 }
5417
5418 if matches!(self.mode, EditorMode::SingleLine) {
5419 cx.propagate();
5420 return;
5421 }
5422
5423 let text_layout_details = &self.text_layout_details(cx);
5424
5425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5426 let line_mode = s.line_mode;
5427 s.move_with(|map, selection| {
5428 if !selection.is_empty() && !line_mode {
5429 selection.goal = SelectionGoal::None;
5430 }
5431 let (cursor, goal) = movement::down_by_rows(
5432 map,
5433 selection.start,
5434 action.lines,
5435 selection.goal,
5436 false,
5437 &text_layout_details,
5438 );
5439 selection.collapse_to(cursor, goal);
5440 });
5441 })
5442 }
5443
5444 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5445 let text_layout_details = &self.text_layout_details(cx);
5446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5447 s.move_heads_with(|map, head, goal| {
5448 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5449 })
5450 })
5451 }
5452
5453 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5454 let text_layout_details = &self.text_layout_details(cx);
5455 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5456 s.move_heads_with(|map, head, goal| {
5457 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5458 })
5459 })
5460 }
5461
5462 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5463 if self.take_rename(true, cx).is_some() {
5464 return;
5465 }
5466
5467 if matches!(self.mode, EditorMode::SingleLine) {
5468 cx.propagate();
5469 return;
5470 }
5471
5472 let row_count = if let Some(row_count) = self.visible_line_count() {
5473 row_count as u32 - 1
5474 } else {
5475 return;
5476 };
5477
5478 let autoscroll = if action.center_cursor {
5479 Autoscroll::center()
5480 } else {
5481 Autoscroll::fit()
5482 };
5483
5484 let text_layout_details = &self.text_layout_details(cx);
5485
5486 self.change_selections(Some(autoscroll), cx, |s| {
5487 let line_mode = s.line_mode;
5488 s.move_with(|map, selection| {
5489 if !selection.is_empty() && !line_mode {
5490 selection.goal = SelectionGoal::None;
5491 }
5492 let (cursor, goal) = movement::up_by_rows(
5493 map,
5494 selection.end,
5495 row_count,
5496 selection.goal,
5497 false,
5498 &text_layout_details,
5499 );
5500 selection.collapse_to(cursor, goal);
5501 });
5502 });
5503 }
5504
5505 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5506 let text_layout_details = &self.text_layout_details(cx);
5507 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5508 s.move_heads_with(|map, head, goal| {
5509 movement::up(map, head, goal, false, &text_layout_details)
5510 })
5511 })
5512 }
5513
5514 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5515 self.take_rename(true, cx);
5516
5517 if self.mode == EditorMode::SingleLine {
5518 cx.propagate();
5519 return;
5520 }
5521
5522 let text_layout_details = &self.text_layout_details(cx);
5523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5524 let line_mode = s.line_mode;
5525 s.move_with(|map, selection| {
5526 if !selection.is_empty() && !line_mode {
5527 selection.goal = SelectionGoal::None;
5528 }
5529 let (cursor, goal) = movement::down(
5530 map,
5531 selection.end,
5532 selection.goal,
5533 false,
5534 &text_layout_details,
5535 );
5536 selection.collapse_to(cursor, goal);
5537 });
5538 });
5539 }
5540
5541 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5542 if self.take_rename(true, cx).is_some() {
5543 return;
5544 }
5545
5546 if self
5547 .context_menu
5548 .write()
5549 .as_mut()
5550 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5551 .unwrap_or(false)
5552 {
5553 return;
5554 }
5555
5556 if matches!(self.mode, EditorMode::SingleLine) {
5557 cx.propagate();
5558 return;
5559 }
5560
5561 let row_count = if let Some(row_count) = self.visible_line_count() {
5562 row_count as u32 - 1
5563 } else {
5564 return;
5565 };
5566
5567 let autoscroll = if action.center_cursor {
5568 Autoscroll::center()
5569 } else {
5570 Autoscroll::fit()
5571 };
5572
5573 let text_layout_details = &self.text_layout_details(cx);
5574 self.change_selections(Some(autoscroll), cx, |s| {
5575 let line_mode = s.line_mode;
5576 s.move_with(|map, selection| {
5577 if !selection.is_empty() && !line_mode {
5578 selection.goal = SelectionGoal::None;
5579 }
5580 let (cursor, goal) = movement::down_by_rows(
5581 map,
5582 selection.end,
5583 row_count,
5584 selection.goal,
5585 false,
5586 &text_layout_details,
5587 );
5588 selection.collapse_to(cursor, goal);
5589 });
5590 });
5591 }
5592
5593 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5594 let text_layout_details = &self.text_layout_details(cx);
5595 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5596 s.move_heads_with(|map, head, goal| {
5597 movement::down(map, head, goal, false, &text_layout_details)
5598 })
5599 });
5600 }
5601
5602 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5603 if let Some(context_menu) = self.context_menu.write().as_mut() {
5604 context_menu.select_first(self.project.as_ref(), cx);
5605 }
5606 }
5607
5608 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5609 if let Some(context_menu) = self.context_menu.write().as_mut() {
5610 context_menu.select_prev(self.project.as_ref(), cx);
5611 }
5612 }
5613
5614 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5615 if let Some(context_menu) = self.context_menu.write().as_mut() {
5616 context_menu.select_next(self.project.as_ref(), cx);
5617 }
5618 }
5619
5620 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5621 if let Some(context_menu) = self.context_menu.write().as_mut() {
5622 context_menu.select_last(self.project.as_ref(), cx);
5623 }
5624 }
5625
5626 pub fn move_to_previous_word_start(
5627 &mut self,
5628 _: &MoveToPreviousWordStart,
5629 cx: &mut ViewContext<Self>,
5630 ) {
5631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5632 s.move_cursors_with(|map, head, _| {
5633 (
5634 movement::previous_word_start(map, head),
5635 SelectionGoal::None,
5636 )
5637 });
5638 })
5639 }
5640
5641 pub fn move_to_previous_subword_start(
5642 &mut self,
5643 _: &MoveToPreviousSubwordStart,
5644 cx: &mut ViewContext<Self>,
5645 ) {
5646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5647 s.move_cursors_with(|map, head, _| {
5648 (
5649 movement::previous_subword_start(map, head),
5650 SelectionGoal::None,
5651 )
5652 });
5653 })
5654 }
5655
5656 pub fn select_to_previous_word_start(
5657 &mut self,
5658 _: &SelectToPreviousWordStart,
5659 cx: &mut ViewContext<Self>,
5660 ) {
5661 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5662 s.move_heads_with(|map, head, _| {
5663 (
5664 movement::previous_word_start(map, head),
5665 SelectionGoal::None,
5666 )
5667 });
5668 })
5669 }
5670
5671 pub fn select_to_previous_subword_start(
5672 &mut self,
5673 _: &SelectToPreviousSubwordStart,
5674 cx: &mut ViewContext<Self>,
5675 ) {
5676 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5677 s.move_heads_with(|map, head, _| {
5678 (
5679 movement::previous_subword_start(map, head),
5680 SelectionGoal::None,
5681 )
5682 });
5683 })
5684 }
5685
5686 pub fn delete_to_previous_word_start(
5687 &mut self,
5688 _: &DeleteToPreviousWordStart,
5689 cx: &mut ViewContext<Self>,
5690 ) {
5691 self.transact(cx, |this, cx| {
5692 this.select_autoclose_pair(cx);
5693 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5694 let line_mode = s.line_mode;
5695 s.move_with(|map, selection| {
5696 if selection.is_empty() && !line_mode {
5697 let cursor = movement::previous_word_start(map, selection.head());
5698 selection.set_head(cursor, SelectionGoal::None);
5699 }
5700 });
5701 });
5702 this.insert("", cx);
5703 });
5704 }
5705
5706 pub fn delete_to_previous_subword_start(
5707 &mut self,
5708 _: &DeleteToPreviousSubwordStart,
5709 cx: &mut ViewContext<Self>,
5710 ) {
5711 self.transact(cx, |this, cx| {
5712 this.select_autoclose_pair(cx);
5713 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 let line_mode = s.line_mode;
5715 s.move_with(|map, selection| {
5716 if selection.is_empty() && !line_mode {
5717 let cursor = movement::previous_subword_start(map, selection.head());
5718 selection.set_head(cursor, SelectionGoal::None);
5719 }
5720 });
5721 });
5722 this.insert("", cx);
5723 });
5724 }
5725
5726 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5727 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5728 s.move_cursors_with(|map, head, _| {
5729 (movement::next_word_end(map, head), SelectionGoal::None)
5730 });
5731 })
5732 }
5733
5734 pub fn move_to_next_subword_end(
5735 &mut self,
5736 _: &MoveToNextSubwordEnd,
5737 cx: &mut ViewContext<Self>,
5738 ) {
5739 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5740 s.move_cursors_with(|map, head, _| {
5741 (movement::next_subword_end(map, head), SelectionGoal::None)
5742 });
5743 })
5744 }
5745
5746 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5747 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5748 s.move_heads_with(|map, head, _| {
5749 (movement::next_word_end(map, head), SelectionGoal::None)
5750 });
5751 })
5752 }
5753
5754 pub fn select_to_next_subword_end(
5755 &mut self,
5756 _: &SelectToNextSubwordEnd,
5757 cx: &mut ViewContext<Self>,
5758 ) {
5759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5760 s.move_heads_with(|map, head, _| {
5761 (movement::next_subword_end(map, head), SelectionGoal::None)
5762 });
5763 })
5764 }
5765
5766 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5767 self.transact(cx, |this, cx| {
5768 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5769 let line_mode = s.line_mode;
5770 s.move_with(|map, selection| {
5771 if selection.is_empty() && !line_mode {
5772 let cursor = movement::next_word_end(map, selection.head());
5773 selection.set_head(cursor, SelectionGoal::None);
5774 }
5775 });
5776 });
5777 this.insert("", cx);
5778 });
5779 }
5780
5781 pub fn delete_to_next_subword_end(
5782 &mut self,
5783 _: &DeleteToNextSubwordEnd,
5784 cx: &mut ViewContext<Self>,
5785 ) {
5786 self.transact(cx, |this, cx| {
5787 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5788 s.move_with(|map, selection| {
5789 if selection.is_empty() {
5790 let cursor = movement::next_subword_end(map, selection.head());
5791 selection.set_head(cursor, SelectionGoal::None);
5792 }
5793 });
5794 });
5795 this.insert("", cx);
5796 });
5797 }
5798
5799 pub fn move_to_beginning_of_line(
5800 &mut self,
5801 _: &MoveToBeginningOfLine,
5802 cx: &mut ViewContext<Self>,
5803 ) {
5804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5805 s.move_cursors_with(|map, head, _| {
5806 (
5807 movement::indented_line_beginning(map, head, true),
5808 SelectionGoal::None,
5809 )
5810 });
5811 })
5812 }
5813
5814 pub fn select_to_beginning_of_line(
5815 &mut self,
5816 action: &SelectToBeginningOfLine,
5817 cx: &mut ViewContext<Self>,
5818 ) {
5819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5820 s.move_heads_with(|map, head, _| {
5821 (
5822 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5823 SelectionGoal::None,
5824 )
5825 });
5826 });
5827 }
5828
5829 pub fn delete_to_beginning_of_line(
5830 &mut self,
5831 _: &DeleteToBeginningOfLine,
5832 cx: &mut ViewContext<Self>,
5833 ) {
5834 self.transact(cx, |this, cx| {
5835 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5836 s.move_with(|_, selection| {
5837 selection.reversed = true;
5838 });
5839 });
5840
5841 this.select_to_beginning_of_line(
5842 &SelectToBeginningOfLine {
5843 stop_at_soft_wraps: false,
5844 },
5845 cx,
5846 );
5847 this.backspace(&Backspace, cx);
5848 });
5849 }
5850
5851 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5853 s.move_cursors_with(|map, head, _| {
5854 (movement::line_end(map, head, true), SelectionGoal::None)
5855 });
5856 })
5857 }
5858
5859 pub fn select_to_end_of_line(
5860 &mut self,
5861 action: &SelectToEndOfLine,
5862 cx: &mut ViewContext<Self>,
5863 ) {
5864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5865 s.move_heads_with(|map, head, _| {
5866 (
5867 movement::line_end(map, head, action.stop_at_soft_wraps),
5868 SelectionGoal::None,
5869 )
5870 });
5871 })
5872 }
5873
5874 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5875 self.transact(cx, |this, cx| {
5876 this.select_to_end_of_line(
5877 &SelectToEndOfLine {
5878 stop_at_soft_wraps: false,
5879 },
5880 cx,
5881 );
5882 this.delete(&Delete, cx);
5883 });
5884 }
5885
5886 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5887 self.transact(cx, |this, cx| {
5888 this.select_to_end_of_line(
5889 &SelectToEndOfLine {
5890 stop_at_soft_wraps: false,
5891 },
5892 cx,
5893 );
5894 this.cut(&Cut, cx);
5895 });
5896 }
5897
5898 pub fn move_to_start_of_paragraph(
5899 &mut self,
5900 _: &MoveToStartOfParagraph,
5901 cx: &mut ViewContext<Self>,
5902 ) {
5903 if matches!(self.mode, EditorMode::SingleLine) {
5904 cx.propagate();
5905 return;
5906 }
5907
5908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5909 s.move_with(|map, selection| {
5910 selection.collapse_to(
5911 movement::start_of_paragraph(map, selection.head(), 1),
5912 SelectionGoal::None,
5913 )
5914 });
5915 })
5916 }
5917
5918 pub fn move_to_end_of_paragraph(
5919 &mut self,
5920 _: &MoveToEndOfParagraph,
5921 cx: &mut ViewContext<Self>,
5922 ) {
5923 if matches!(self.mode, EditorMode::SingleLine) {
5924 cx.propagate();
5925 return;
5926 }
5927
5928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5929 s.move_with(|map, selection| {
5930 selection.collapse_to(
5931 movement::end_of_paragraph(map, selection.head(), 1),
5932 SelectionGoal::None,
5933 )
5934 });
5935 })
5936 }
5937
5938 pub fn select_to_start_of_paragraph(
5939 &mut self,
5940 _: &SelectToStartOfParagraph,
5941 cx: &mut ViewContext<Self>,
5942 ) {
5943 if matches!(self.mode, EditorMode::SingleLine) {
5944 cx.propagate();
5945 return;
5946 }
5947
5948 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5949 s.move_heads_with(|map, head, _| {
5950 (
5951 movement::start_of_paragraph(map, head, 1),
5952 SelectionGoal::None,
5953 )
5954 });
5955 })
5956 }
5957
5958 pub fn select_to_end_of_paragraph(
5959 &mut self,
5960 _: &SelectToEndOfParagraph,
5961 cx: &mut ViewContext<Self>,
5962 ) {
5963 if matches!(self.mode, EditorMode::SingleLine) {
5964 cx.propagate();
5965 return;
5966 }
5967
5968 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5969 s.move_heads_with(|map, head, _| {
5970 (
5971 movement::end_of_paragraph(map, head, 1),
5972 SelectionGoal::None,
5973 )
5974 });
5975 })
5976 }
5977
5978 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5979 if matches!(self.mode, EditorMode::SingleLine) {
5980 cx.propagate();
5981 return;
5982 }
5983
5984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5985 s.select_ranges(vec![0..0]);
5986 });
5987 }
5988
5989 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5990 let mut selection = self.selections.last::<Point>(cx);
5991 selection.set_head(Point::zero(), SelectionGoal::None);
5992
5993 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5994 s.select(vec![selection]);
5995 });
5996 }
5997
5998 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
5999 if matches!(self.mode, EditorMode::SingleLine) {
6000 cx.propagate();
6001 return;
6002 }
6003
6004 let cursor = self.buffer.read(cx).read(cx).len();
6005 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6006 s.select_ranges(vec![cursor..cursor])
6007 });
6008 }
6009
6010 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6011 self.nav_history = nav_history;
6012 }
6013
6014 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6015 self.nav_history.as_ref()
6016 }
6017
6018 fn push_to_nav_history(
6019 &mut self,
6020 cursor_anchor: Anchor,
6021 new_position: Option<Point>,
6022 cx: &mut ViewContext<Self>,
6023 ) {
6024 if let Some(nav_history) = self.nav_history.as_mut() {
6025 let buffer = self.buffer.read(cx).read(cx);
6026 let cursor_position = cursor_anchor.to_point(&buffer);
6027 let scroll_state = self.scroll_manager.anchor();
6028 let scroll_top_row = scroll_state.top_row(&buffer);
6029 drop(buffer);
6030
6031 if let Some(new_position) = new_position {
6032 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6033 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6034 return;
6035 }
6036 }
6037
6038 nav_history.push(
6039 Some(NavigationData {
6040 cursor_anchor,
6041 cursor_position,
6042 scroll_anchor: scroll_state,
6043 scroll_top_row,
6044 }),
6045 cx,
6046 );
6047 }
6048 }
6049
6050 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6051 let buffer = self.buffer.read(cx).snapshot(cx);
6052 let mut selection = self.selections.first::<usize>(cx);
6053 selection.set_head(buffer.len(), SelectionGoal::None);
6054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6055 s.select(vec![selection]);
6056 });
6057 }
6058
6059 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6060 let end = self.buffer.read(cx).read(cx).len();
6061 self.change_selections(None, cx, |s| {
6062 s.select_ranges(vec![0..end]);
6063 });
6064 }
6065
6066 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6068 let mut selections = self.selections.all::<Point>(cx);
6069 let max_point = display_map.buffer_snapshot.max_point();
6070 for selection in &mut selections {
6071 let rows = selection.spanned_rows(true, &display_map);
6072 selection.start = Point::new(rows.start, 0);
6073 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6074 selection.reversed = false;
6075 }
6076 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6077 s.select(selections);
6078 });
6079 }
6080
6081 pub fn split_selection_into_lines(
6082 &mut self,
6083 _: &SplitSelectionIntoLines,
6084 cx: &mut ViewContext<Self>,
6085 ) {
6086 let mut to_unfold = Vec::new();
6087 let mut new_selection_ranges = Vec::new();
6088 {
6089 let selections = self.selections.all::<Point>(cx);
6090 let buffer = self.buffer.read(cx).read(cx);
6091 for selection in selections {
6092 for row in selection.start.row..selection.end.row {
6093 let cursor = Point::new(row, buffer.line_len(row));
6094 new_selection_ranges.push(cursor..cursor);
6095 }
6096 new_selection_ranges.push(selection.end..selection.end);
6097 to_unfold.push(selection.start..selection.end);
6098 }
6099 }
6100 self.unfold_ranges(to_unfold, true, true, cx);
6101 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6102 s.select_ranges(new_selection_ranges);
6103 });
6104 }
6105
6106 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6107 self.add_selection(true, cx);
6108 }
6109
6110 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6111 self.add_selection(false, cx);
6112 }
6113
6114 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6115 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6116 let mut selections = self.selections.all::<Point>(cx);
6117 let text_layout_details = self.text_layout_details(cx);
6118 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6119 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6120 let range = oldest_selection.display_range(&display_map).sorted();
6121
6122 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6123 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6124 let positions = start_x.min(end_x)..start_x.max(end_x);
6125
6126 selections.clear();
6127 let mut stack = Vec::new();
6128 for row in range.start.row()..=range.end.row() {
6129 if let Some(selection) = self.selections.build_columnar_selection(
6130 &display_map,
6131 row,
6132 &positions,
6133 oldest_selection.reversed,
6134 &text_layout_details,
6135 ) {
6136 stack.push(selection.id);
6137 selections.push(selection);
6138 }
6139 }
6140
6141 if above {
6142 stack.reverse();
6143 }
6144
6145 AddSelectionsState { above, stack }
6146 });
6147
6148 let last_added_selection = *state.stack.last().unwrap();
6149 let mut new_selections = Vec::new();
6150 if above == state.above {
6151 let end_row = if above {
6152 0
6153 } else {
6154 display_map.max_point().row()
6155 };
6156
6157 'outer: for selection in selections {
6158 if selection.id == last_added_selection {
6159 let range = selection.display_range(&display_map).sorted();
6160 debug_assert_eq!(range.start.row(), range.end.row());
6161 let mut row = range.start.row();
6162 let positions =
6163 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6164 px(start)..px(end)
6165 } else {
6166 let start_x =
6167 display_map.x_for_display_point(range.start, &text_layout_details);
6168 let end_x =
6169 display_map.x_for_display_point(range.end, &text_layout_details);
6170 start_x.min(end_x)..start_x.max(end_x)
6171 };
6172
6173 while row != end_row {
6174 if above {
6175 row -= 1;
6176 } else {
6177 row += 1;
6178 }
6179
6180 if let Some(new_selection) = self.selections.build_columnar_selection(
6181 &display_map,
6182 row,
6183 &positions,
6184 selection.reversed,
6185 &text_layout_details,
6186 ) {
6187 state.stack.push(new_selection.id);
6188 if above {
6189 new_selections.push(new_selection);
6190 new_selections.push(selection);
6191 } else {
6192 new_selections.push(selection);
6193 new_selections.push(new_selection);
6194 }
6195
6196 continue 'outer;
6197 }
6198 }
6199 }
6200
6201 new_selections.push(selection);
6202 }
6203 } else {
6204 new_selections = selections;
6205 new_selections.retain(|s| s.id != last_added_selection);
6206 state.stack.pop();
6207 }
6208
6209 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6210 s.select(new_selections);
6211 });
6212 if state.stack.len() > 1 {
6213 self.add_selections_state = Some(state);
6214 }
6215 }
6216
6217 pub fn select_next_match_internal(
6218 &mut self,
6219 display_map: &DisplaySnapshot,
6220 replace_newest: bool,
6221 autoscroll: Option<Autoscroll>,
6222 cx: &mut ViewContext<Self>,
6223 ) -> Result<()> {
6224 fn select_next_match_ranges(
6225 this: &mut Editor,
6226 range: Range<usize>,
6227 replace_newest: bool,
6228 auto_scroll: Option<Autoscroll>,
6229 cx: &mut ViewContext<Editor>,
6230 ) {
6231 this.unfold_ranges([range.clone()], false, true, cx);
6232 this.change_selections(auto_scroll, cx, |s| {
6233 if replace_newest {
6234 s.delete(s.newest_anchor().id);
6235 }
6236 s.insert_range(range.clone());
6237 });
6238 }
6239
6240 let buffer = &display_map.buffer_snapshot;
6241 let mut selections = self.selections.all::<usize>(cx);
6242 if let Some(mut select_next_state) = self.select_next_state.take() {
6243 let query = &select_next_state.query;
6244 if !select_next_state.done {
6245 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6246 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6247 let mut next_selected_range = None;
6248
6249 let bytes_after_last_selection =
6250 buffer.bytes_in_range(last_selection.end..buffer.len());
6251 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6252 let query_matches = query
6253 .stream_find_iter(bytes_after_last_selection)
6254 .map(|result| (last_selection.end, result))
6255 .chain(
6256 query
6257 .stream_find_iter(bytes_before_first_selection)
6258 .map(|result| (0, result)),
6259 );
6260
6261 for (start_offset, query_match) in query_matches {
6262 let query_match = query_match.unwrap(); // can only fail due to I/O
6263 let offset_range =
6264 start_offset + query_match.start()..start_offset + query_match.end();
6265 let display_range = offset_range.start.to_display_point(&display_map)
6266 ..offset_range.end.to_display_point(&display_map);
6267
6268 if !select_next_state.wordwise
6269 || (!movement::is_inside_word(&display_map, display_range.start)
6270 && !movement::is_inside_word(&display_map, display_range.end))
6271 {
6272 // TODO: This is n^2, because we might check all the selections
6273 if selections
6274 .iter()
6275 .find(|selection| selection.range().overlaps(&offset_range))
6276 .is_none()
6277 {
6278 next_selected_range = Some(offset_range);
6279 break;
6280 }
6281 }
6282 }
6283
6284 if let Some(next_selected_range) = next_selected_range {
6285 select_next_match_ranges(
6286 self,
6287 next_selected_range,
6288 replace_newest,
6289 autoscroll,
6290 cx,
6291 );
6292 } else {
6293 select_next_state.done = true;
6294 }
6295 }
6296
6297 self.select_next_state = Some(select_next_state);
6298 } else {
6299 let mut only_carets = true;
6300 let mut same_text_selected = true;
6301 let mut selected_text = None;
6302
6303 let mut selections_iter = selections.iter().peekable();
6304 while let Some(selection) = selections_iter.next() {
6305 if selection.start != selection.end {
6306 only_carets = false;
6307 }
6308
6309 if same_text_selected {
6310 if selected_text.is_none() {
6311 selected_text =
6312 Some(buffer.text_for_range(selection.range()).collect::<String>());
6313 }
6314
6315 if let Some(next_selection) = selections_iter.peek() {
6316 if next_selection.range().len() == selection.range().len() {
6317 let next_selected_text = buffer
6318 .text_for_range(next_selection.range())
6319 .collect::<String>();
6320 if Some(next_selected_text) != selected_text {
6321 same_text_selected = false;
6322 selected_text = None;
6323 }
6324 } else {
6325 same_text_selected = false;
6326 selected_text = None;
6327 }
6328 }
6329 }
6330 }
6331
6332 if only_carets {
6333 for selection in &mut selections {
6334 let word_range = movement::surrounding_word(
6335 &display_map,
6336 selection.start.to_display_point(&display_map),
6337 );
6338 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6339 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6340 selection.goal = SelectionGoal::None;
6341 selection.reversed = false;
6342 select_next_match_ranges(
6343 self,
6344 selection.start..selection.end,
6345 replace_newest,
6346 autoscroll,
6347 cx,
6348 );
6349 }
6350
6351 if selections.len() == 1 {
6352 let selection = selections
6353 .last()
6354 .expect("ensured that there's only one selection");
6355 let query = buffer
6356 .text_for_range(selection.start..selection.end)
6357 .collect::<String>();
6358 let is_empty = query.is_empty();
6359 let select_state = SelectNextState {
6360 query: AhoCorasick::new(&[query])?,
6361 wordwise: true,
6362 done: is_empty,
6363 };
6364 self.select_next_state = Some(select_state);
6365 } else {
6366 self.select_next_state = None;
6367 }
6368 } else if let Some(selected_text) = selected_text {
6369 self.select_next_state = Some(SelectNextState {
6370 query: AhoCorasick::new(&[selected_text])?,
6371 wordwise: false,
6372 done: false,
6373 });
6374 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6375 }
6376 }
6377 Ok(())
6378 }
6379
6380 pub fn select_all_matches(
6381 &mut self,
6382 _action: &SelectAllMatches,
6383 cx: &mut ViewContext<Self>,
6384 ) -> Result<()> {
6385 self.push_to_selection_history();
6386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6387
6388 self.select_next_match_internal(&display_map, false, None, cx)?;
6389 let Some(select_next_state) = self.select_next_state.as_mut() else {
6390 return Ok(());
6391 };
6392 if select_next_state.done {
6393 return Ok(());
6394 }
6395
6396 let mut new_selections = self.selections.all::<usize>(cx);
6397
6398 let buffer = &display_map.buffer_snapshot;
6399 let query_matches = select_next_state
6400 .query
6401 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6402
6403 for query_match in query_matches {
6404 let query_match = query_match.unwrap(); // can only fail due to I/O
6405 let offset_range = query_match.start()..query_match.end();
6406 let display_range = offset_range.start.to_display_point(&display_map)
6407 ..offset_range.end.to_display_point(&display_map);
6408
6409 if !select_next_state.wordwise
6410 || (!movement::is_inside_word(&display_map, display_range.start)
6411 && !movement::is_inside_word(&display_map, display_range.end))
6412 {
6413 self.selections.change_with(cx, |selections| {
6414 new_selections.push(Selection {
6415 id: selections.new_selection_id(),
6416 start: offset_range.start,
6417 end: offset_range.end,
6418 reversed: false,
6419 goal: SelectionGoal::None,
6420 });
6421 });
6422 }
6423 }
6424
6425 new_selections.sort_by_key(|selection| selection.start);
6426 let mut ix = 0;
6427 while ix + 1 < new_selections.len() {
6428 let current_selection = &new_selections[ix];
6429 let next_selection = &new_selections[ix + 1];
6430 if current_selection.range().overlaps(&next_selection.range()) {
6431 if current_selection.id < next_selection.id {
6432 new_selections.remove(ix + 1);
6433 } else {
6434 new_selections.remove(ix);
6435 }
6436 } else {
6437 ix += 1;
6438 }
6439 }
6440
6441 select_next_state.done = true;
6442 self.unfold_ranges(
6443 new_selections.iter().map(|selection| selection.range()),
6444 false,
6445 false,
6446 cx,
6447 );
6448 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6449 selections.select(new_selections)
6450 });
6451
6452 Ok(())
6453 }
6454
6455 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6456 self.push_to_selection_history();
6457 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6458 self.select_next_match_internal(
6459 &display_map,
6460 action.replace_newest,
6461 Some(Autoscroll::newest()),
6462 cx,
6463 )?;
6464 Ok(())
6465 }
6466
6467 pub fn select_previous(
6468 &mut self,
6469 action: &SelectPrevious,
6470 cx: &mut ViewContext<Self>,
6471 ) -> Result<()> {
6472 self.push_to_selection_history();
6473 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6474 let buffer = &display_map.buffer_snapshot;
6475 let mut selections = self.selections.all::<usize>(cx);
6476 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6477 let query = &select_prev_state.query;
6478 if !select_prev_state.done {
6479 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6480 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6481 let mut next_selected_range = None;
6482 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6483 let bytes_before_last_selection =
6484 buffer.reversed_bytes_in_range(0..last_selection.start);
6485 let bytes_after_first_selection =
6486 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6487 let query_matches = query
6488 .stream_find_iter(bytes_before_last_selection)
6489 .map(|result| (last_selection.start, result))
6490 .chain(
6491 query
6492 .stream_find_iter(bytes_after_first_selection)
6493 .map(|result| (buffer.len(), result)),
6494 );
6495 for (end_offset, query_match) in query_matches {
6496 let query_match = query_match.unwrap(); // can only fail due to I/O
6497 let offset_range =
6498 end_offset - query_match.end()..end_offset - query_match.start();
6499 let display_range = offset_range.start.to_display_point(&display_map)
6500 ..offset_range.end.to_display_point(&display_map);
6501
6502 if !select_prev_state.wordwise
6503 || (!movement::is_inside_word(&display_map, display_range.start)
6504 && !movement::is_inside_word(&display_map, display_range.end))
6505 {
6506 next_selected_range = Some(offset_range);
6507 break;
6508 }
6509 }
6510
6511 if let Some(next_selected_range) = next_selected_range {
6512 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6513 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6514 if action.replace_newest {
6515 s.delete(s.newest_anchor().id);
6516 }
6517 s.insert_range(next_selected_range);
6518 });
6519 } else {
6520 select_prev_state.done = true;
6521 }
6522 }
6523
6524 self.select_prev_state = Some(select_prev_state);
6525 } else {
6526 let mut only_carets = true;
6527 let mut same_text_selected = true;
6528 let mut selected_text = None;
6529
6530 let mut selections_iter = selections.iter().peekable();
6531 while let Some(selection) = selections_iter.next() {
6532 if selection.start != selection.end {
6533 only_carets = false;
6534 }
6535
6536 if same_text_selected {
6537 if selected_text.is_none() {
6538 selected_text =
6539 Some(buffer.text_for_range(selection.range()).collect::<String>());
6540 }
6541
6542 if let Some(next_selection) = selections_iter.peek() {
6543 if next_selection.range().len() == selection.range().len() {
6544 let next_selected_text = buffer
6545 .text_for_range(next_selection.range())
6546 .collect::<String>();
6547 if Some(next_selected_text) != selected_text {
6548 same_text_selected = false;
6549 selected_text = None;
6550 }
6551 } else {
6552 same_text_selected = false;
6553 selected_text = None;
6554 }
6555 }
6556 }
6557 }
6558
6559 if only_carets {
6560 for selection in &mut selections {
6561 let word_range = movement::surrounding_word(
6562 &display_map,
6563 selection.start.to_display_point(&display_map),
6564 );
6565 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6566 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6567 selection.goal = SelectionGoal::None;
6568 selection.reversed = false;
6569 }
6570 if selections.len() == 1 {
6571 let selection = selections
6572 .last()
6573 .expect("ensured that there's only one selection");
6574 let query = buffer
6575 .text_for_range(selection.start..selection.end)
6576 .collect::<String>();
6577 let is_empty = query.is_empty();
6578 let select_state = SelectNextState {
6579 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6580 wordwise: true,
6581 done: is_empty,
6582 };
6583 self.select_prev_state = Some(select_state);
6584 } else {
6585 self.select_prev_state = None;
6586 }
6587
6588 self.unfold_ranges(
6589 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6590 false,
6591 true,
6592 cx,
6593 );
6594 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6595 s.select(selections);
6596 });
6597 } else if let Some(selected_text) = selected_text {
6598 self.select_prev_state = Some(SelectNextState {
6599 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6600 wordwise: false,
6601 done: false,
6602 });
6603 self.select_previous(action, cx)?;
6604 }
6605 }
6606 Ok(())
6607 }
6608
6609 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6610 let text_layout_details = &self.text_layout_details(cx);
6611 self.transact(cx, |this, cx| {
6612 let mut selections = this.selections.all::<Point>(cx);
6613 let mut edits = Vec::new();
6614 let mut selection_edit_ranges = Vec::new();
6615 let mut last_toggled_row = None;
6616 let snapshot = this.buffer.read(cx).read(cx);
6617 let empty_str: Arc<str> = "".into();
6618 let mut suffixes_inserted = Vec::new();
6619
6620 fn comment_prefix_range(
6621 snapshot: &MultiBufferSnapshot,
6622 row: u32,
6623 comment_prefix: &str,
6624 comment_prefix_whitespace: &str,
6625 ) -> Range<Point> {
6626 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6627
6628 let mut line_bytes = snapshot
6629 .bytes_in_range(start..snapshot.max_point())
6630 .flatten()
6631 .copied();
6632
6633 // If this line currently begins with the line comment prefix, then record
6634 // the range containing the prefix.
6635 if line_bytes
6636 .by_ref()
6637 .take(comment_prefix.len())
6638 .eq(comment_prefix.bytes())
6639 {
6640 // Include any whitespace that matches the comment prefix.
6641 let matching_whitespace_len = line_bytes
6642 .zip(comment_prefix_whitespace.bytes())
6643 .take_while(|(a, b)| a == b)
6644 .count() as u32;
6645 let end = Point::new(
6646 start.row,
6647 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6648 );
6649 start..end
6650 } else {
6651 start..start
6652 }
6653 }
6654
6655 fn comment_suffix_range(
6656 snapshot: &MultiBufferSnapshot,
6657 row: u32,
6658 comment_suffix: &str,
6659 comment_suffix_has_leading_space: bool,
6660 ) -> Range<Point> {
6661 let end = Point::new(row, snapshot.line_len(row));
6662 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6663
6664 let mut line_end_bytes = snapshot
6665 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6666 .flatten()
6667 .copied();
6668
6669 let leading_space_len = if suffix_start_column > 0
6670 && line_end_bytes.next() == Some(b' ')
6671 && comment_suffix_has_leading_space
6672 {
6673 1
6674 } else {
6675 0
6676 };
6677
6678 // If this line currently begins with the line comment prefix, then record
6679 // the range containing the prefix.
6680 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6681 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6682 start..end
6683 } else {
6684 end..end
6685 }
6686 }
6687
6688 // TODO: Handle selections that cross excerpts
6689 for selection in &mut selections {
6690 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6691 let language = if let Some(language) =
6692 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6693 {
6694 language
6695 } else {
6696 continue;
6697 };
6698
6699 selection_edit_ranges.clear();
6700
6701 // If multiple selections contain a given row, avoid processing that
6702 // row more than once.
6703 let mut start_row = selection.start.row;
6704 if last_toggled_row == Some(start_row) {
6705 start_row += 1;
6706 }
6707 let end_row =
6708 if selection.end.row > selection.start.row && selection.end.column == 0 {
6709 selection.end.row - 1
6710 } else {
6711 selection.end.row
6712 };
6713 last_toggled_row = Some(end_row);
6714
6715 if start_row > end_row {
6716 continue;
6717 }
6718
6719 // If the language has line comments, toggle those.
6720 if let Some(full_comment_prefix) = language
6721 .line_comment_prefixes()
6722 .and_then(|prefixes| prefixes.first())
6723 {
6724 // Split the comment prefix's trailing whitespace into a separate string,
6725 // as that portion won't be used for detecting if a line is a comment.
6726 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6727 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6728 let mut all_selection_lines_are_comments = true;
6729
6730 for row in start_row..=end_row {
6731 if start_row < end_row && snapshot.is_line_blank(row) {
6732 continue;
6733 }
6734
6735 let prefix_range = comment_prefix_range(
6736 snapshot.deref(),
6737 row,
6738 comment_prefix,
6739 comment_prefix_whitespace,
6740 );
6741 if prefix_range.is_empty() {
6742 all_selection_lines_are_comments = false;
6743 }
6744 selection_edit_ranges.push(prefix_range);
6745 }
6746
6747 if all_selection_lines_are_comments {
6748 edits.extend(
6749 selection_edit_ranges
6750 .iter()
6751 .cloned()
6752 .map(|range| (range, empty_str.clone())),
6753 );
6754 } else {
6755 let min_column = selection_edit_ranges
6756 .iter()
6757 .map(|r| r.start.column)
6758 .min()
6759 .unwrap_or(0);
6760 edits.extend(selection_edit_ranges.iter().map(|range| {
6761 let position = Point::new(range.start.row, min_column);
6762 (position..position, full_comment_prefix.clone())
6763 }));
6764 }
6765 } else if let Some((full_comment_prefix, comment_suffix)) =
6766 language.block_comment_delimiters()
6767 {
6768 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6769 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6770 let prefix_range = comment_prefix_range(
6771 snapshot.deref(),
6772 start_row,
6773 comment_prefix,
6774 comment_prefix_whitespace,
6775 );
6776 let suffix_range = comment_suffix_range(
6777 snapshot.deref(),
6778 end_row,
6779 comment_suffix.trim_start_matches(' '),
6780 comment_suffix.starts_with(' '),
6781 );
6782
6783 if prefix_range.is_empty() || suffix_range.is_empty() {
6784 edits.push((
6785 prefix_range.start..prefix_range.start,
6786 full_comment_prefix.clone(),
6787 ));
6788 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6789 suffixes_inserted.push((end_row, comment_suffix.len()));
6790 } else {
6791 edits.push((prefix_range, empty_str.clone()));
6792 edits.push((suffix_range, empty_str.clone()));
6793 }
6794 } else {
6795 continue;
6796 }
6797 }
6798
6799 drop(snapshot);
6800 this.buffer.update(cx, |buffer, cx| {
6801 buffer.edit(edits, None, cx);
6802 });
6803
6804 // Adjust selections so that they end before any comment suffixes that
6805 // were inserted.
6806 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6807 let mut selections = this.selections.all::<Point>(cx);
6808 let snapshot = this.buffer.read(cx).read(cx);
6809 for selection in &mut selections {
6810 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6811 match row.cmp(&selection.end.row) {
6812 Ordering::Less => {
6813 suffixes_inserted.next();
6814 continue;
6815 }
6816 Ordering::Greater => break,
6817 Ordering::Equal => {
6818 if selection.end.column == snapshot.line_len(row) {
6819 if selection.is_empty() {
6820 selection.start.column -= suffix_len as u32;
6821 }
6822 selection.end.column -= suffix_len as u32;
6823 }
6824 break;
6825 }
6826 }
6827 }
6828 }
6829
6830 drop(snapshot);
6831 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6832
6833 let selections = this.selections.all::<Point>(cx);
6834 let selections_on_single_row = selections.windows(2).all(|selections| {
6835 selections[0].start.row == selections[1].start.row
6836 && selections[0].end.row == selections[1].end.row
6837 && selections[0].start.row == selections[0].end.row
6838 });
6839 let selections_selecting = selections
6840 .iter()
6841 .any(|selection| selection.start != selection.end);
6842 let advance_downwards = action.advance_downwards
6843 && selections_on_single_row
6844 && !selections_selecting
6845 && this.mode != EditorMode::SingleLine;
6846
6847 if advance_downwards {
6848 let snapshot = this.buffer.read(cx).snapshot(cx);
6849
6850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6851 s.move_cursors_with(|display_snapshot, display_point, _| {
6852 let mut point = display_point.to_point(display_snapshot);
6853 point.row += 1;
6854 point = snapshot.clip_point(point, Bias::Left);
6855 let display_point = point.to_display_point(display_snapshot);
6856 let goal = SelectionGoal::HorizontalPosition(
6857 display_snapshot
6858 .x_for_display_point(display_point, &text_layout_details)
6859 .into(),
6860 );
6861 (display_point, goal)
6862 })
6863 });
6864 }
6865 });
6866 }
6867
6868 pub fn select_larger_syntax_node(
6869 &mut self,
6870 _: &SelectLargerSyntaxNode,
6871 cx: &mut ViewContext<Self>,
6872 ) {
6873 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6874 let buffer = self.buffer.read(cx).snapshot(cx);
6875 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6876
6877 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6878 let mut selected_larger_node = false;
6879 let new_selections = old_selections
6880 .iter()
6881 .map(|selection| {
6882 let old_range = selection.start..selection.end;
6883 let mut new_range = old_range.clone();
6884 while let Some(containing_range) =
6885 buffer.range_for_syntax_ancestor(new_range.clone())
6886 {
6887 new_range = containing_range;
6888 if !display_map.intersects_fold(new_range.start)
6889 && !display_map.intersects_fold(new_range.end)
6890 {
6891 break;
6892 }
6893 }
6894
6895 selected_larger_node |= new_range != old_range;
6896 Selection {
6897 id: selection.id,
6898 start: new_range.start,
6899 end: new_range.end,
6900 goal: SelectionGoal::None,
6901 reversed: selection.reversed,
6902 }
6903 })
6904 .collect::<Vec<_>>();
6905
6906 if selected_larger_node {
6907 stack.push(old_selections);
6908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6909 s.select(new_selections);
6910 });
6911 }
6912 self.select_larger_syntax_node_stack = stack;
6913 }
6914
6915 pub fn select_smaller_syntax_node(
6916 &mut self,
6917 _: &SelectSmallerSyntaxNode,
6918 cx: &mut ViewContext<Self>,
6919 ) {
6920 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6921 if let Some(selections) = stack.pop() {
6922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6923 s.select(selections.to_vec());
6924 });
6925 }
6926 self.select_larger_syntax_node_stack = stack;
6927 }
6928
6929 pub fn move_to_enclosing_bracket(
6930 &mut self,
6931 _: &MoveToEnclosingBracket,
6932 cx: &mut ViewContext<Self>,
6933 ) {
6934 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6935 s.move_offsets_with(|snapshot, selection| {
6936 let Some(enclosing_bracket_ranges) =
6937 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6938 else {
6939 return;
6940 };
6941
6942 let mut best_length = usize::MAX;
6943 let mut best_inside = false;
6944 let mut best_in_bracket_range = false;
6945 let mut best_destination = None;
6946 for (open, close) in enclosing_bracket_ranges {
6947 let close = close.to_inclusive();
6948 let length = close.end() - open.start;
6949 let inside = selection.start >= open.end && selection.end <= *close.start();
6950 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6951 || close.contains(&selection.head());
6952
6953 // If best is next to a bracket and current isn't, skip
6954 if !in_bracket_range && best_in_bracket_range {
6955 continue;
6956 }
6957
6958 // Prefer smaller lengths unless best is inside and current isn't
6959 if length > best_length && (best_inside || !inside) {
6960 continue;
6961 }
6962
6963 best_length = length;
6964 best_inside = inside;
6965 best_in_bracket_range = in_bracket_range;
6966 best_destination = Some(
6967 if close.contains(&selection.start) && close.contains(&selection.end) {
6968 if inside {
6969 open.end
6970 } else {
6971 open.start
6972 }
6973 } else {
6974 if inside {
6975 *close.start()
6976 } else {
6977 *close.end()
6978 }
6979 },
6980 );
6981 }
6982
6983 if let Some(destination) = best_destination {
6984 selection.collapse_to(destination, SelectionGoal::None);
6985 }
6986 })
6987 });
6988 }
6989
6990 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6991 self.end_selection(cx);
6992 self.selection_history.mode = SelectionHistoryMode::Undoing;
6993 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6994 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6995 self.select_next_state = entry.select_next_state;
6996 self.select_prev_state = entry.select_prev_state;
6997 self.add_selections_state = entry.add_selections_state;
6998 self.request_autoscroll(Autoscroll::newest(), cx);
6999 }
7000 self.selection_history.mode = SelectionHistoryMode::Normal;
7001 }
7002
7003 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7004 self.end_selection(cx);
7005 self.selection_history.mode = SelectionHistoryMode::Redoing;
7006 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7007 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7008 self.select_next_state = entry.select_next_state;
7009 self.select_prev_state = entry.select_prev_state;
7010 self.add_selections_state = entry.add_selections_state;
7011 self.request_autoscroll(Autoscroll::newest(), cx);
7012 }
7013 self.selection_history.mode = SelectionHistoryMode::Normal;
7014 }
7015
7016 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7017 self.go_to_diagnostic_impl(Direction::Next, cx)
7018 }
7019
7020 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7021 self.go_to_diagnostic_impl(Direction::Prev, cx)
7022 }
7023
7024 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7025 let buffer = self.buffer.read(cx).snapshot(cx);
7026 let selection = self.selections.newest::<usize>(cx);
7027
7028 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7029 if direction == Direction::Next {
7030 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7031 let (group_id, jump_to) = popover.activation_info();
7032 if self.activate_diagnostics(group_id, cx) {
7033 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7034 let mut new_selection = s.newest_anchor().clone();
7035 new_selection.collapse_to(jump_to, SelectionGoal::None);
7036 s.select_anchors(vec![new_selection.clone()]);
7037 });
7038 }
7039 return;
7040 }
7041 }
7042
7043 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7044 active_diagnostics
7045 .primary_range
7046 .to_offset(&buffer)
7047 .to_inclusive()
7048 });
7049 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7050 if active_primary_range.contains(&selection.head()) {
7051 *active_primary_range.end()
7052 } else {
7053 selection.head()
7054 }
7055 } else {
7056 selection.head()
7057 };
7058
7059 loop {
7060 let mut diagnostics = if direction == Direction::Prev {
7061 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7062 } else {
7063 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7064 };
7065 let group = diagnostics.find_map(|entry| {
7066 if entry.diagnostic.is_primary
7067 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7068 && !entry.range.is_empty()
7069 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7070 && !entry.range.contains(&search_start)
7071 {
7072 Some((entry.range, entry.diagnostic.group_id))
7073 } else {
7074 None
7075 }
7076 });
7077
7078 if let Some((primary_range, group_id)) = group {
7079 if self.activate_diagnostics(group_id, cx) {
7080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7081 s.select(vec![Selection {
7082 id: selection.id,
7083 start: primary_range.start,
7084 end: primary_range.start,
7085 reversed: false,
7086 goal: SelectionGoal::None,
7087 }]);
7088 });
7089 }
7090 break;
7091 } else {
7092 // Cycle around to the start of the buffer, potentially moving back to the start of
7093 // the currently active diagnostic.
7094 active_primary_range.take();
7095 if direction == Direction::Prev {
7096 if search_start == buffer.len() {
7097 break;
7098 } else {
7099 search_start = buffer.len();
7100 }
7101 } else if search_start == 0 {
7102 break;
7103 } else {
7104 search_start = 0;
7105 }
7106 }
7107 }
7108 }
7109
7110 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7111 let snapshot = self
7112 .display_map
7113 .update(cx, |display_map, cx| display_map.snapshot(cx));
7114 let selection = self.selections.newest::<Point>(cx);
7115
7116 if !self.seek_in_direction(
7117 &snapshot,
7118 selection.head(),
7119 false,
7120 snapshot
7121 .buffer_snapshot
7122 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7123 cx,
7124 ) {
7125 let wrapped_point = Point::zero();
7126 self.seek_in_direction(
7127 &snapshot,
7128 wrapped_point,
7129 true,
7130 snapshot
7131 .buffer_snapshot
7132 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7133 cx,
7134 );
7135 }
7136 }
7137
7138 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7139 let snapshot = self
7140 .display_map
7141 .update(cx, |display_map, cx| display_map.snapshot(cx));
7142 let selection = self.selections.newest::<Point>(cx);
7143
7144 if !self.seek_in_direction(
7145 &snapshot,
7146 selection.head(),
7147 false,
7148 snapshot
7149 .buffer_snapshot
7150 .git_diff_hunks_in_range_rev(0..selection.head().row),
7151 cx,
7152 ) {
7153 let wrapped_point = snapshot.buffer_snapshot.max_point();
7154 self.seek_in_direction(
7155 &snapshot,
7156 wrapped_point,
7157 true,
7158 snapshot
7159 .buffer_snapshot
7160 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7161 cx,
7162 );
7163 }
7164 }
7165
7166 fn seek_in_direction(
7167 &mut self,
7168 snapshot: &DisplaySnapshot,
7169 initial_point: Point,
7170 is_wrapped: bool,
7171 hunks: impl Iterator<Item = DiffHunk<u32>>,
7172 cx: &mut ViewContext<Editor>,
7173 ) -> bool {
7174 let display_point = initial_point.to_display_point(snapshot);
7175 let mut hunks = hunks
7176 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7177 .filter(|hunk| {
7178 if is_wrapped {
7179 true
7180 } else {
7181 !hunk.contains_display_row(display_point.row())
7182 }
7183 })
7184 .dedup();
7185
7186 if let Some(hunk) = hunks.next() {
7187 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7188 let row = hunk.start_display_row();
7189 let point = DisplayPoint::new(row, 0);
7190 s.select_display_ranges([point..point]);
7191 });
7192
7193 true
7194 } else {
7195 false
7196 }
7197 }
7198
7199 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7200 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7201 }
7202
7203 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7204 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7205 }
7206
7207 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7208 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7209 }
7210
7211 pub fn go_to_type_definition_split(
7212 &mut self,
7213 _: &GoToTypeDefinitionSplit,
7214 cx: &mut ViewContext<Self>,
7215 ) {
7216 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7217 }
7218
7219 fn go_to_definition_of_kind(
7220 &mut self,
7221 kind: GotoDefinitionKind,
7222 split: bool,
7223 cx: &mut ViewContext<Self>,
7224 ) {
7225 let Some(workspace) = self.workspace() else {
7226 return;
7227 };
7228 let buffer = self.buffer.read(cx);
7229 let head = self.selections.newest::<usize>(cx).head();
7230 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7231 text_anchor
7232 } else {
7233 return;
7234 };
7235
7236 let project = workspace.read(cx).project().clone();
7237 let definitions = project.update(cx, |project, cx| match kind {
7238 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7239 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7240 });
7241
7242 cx.spawn(|editor, mut cx| async move {
7243 let definitions = definitions.await?;
7244 editor.update(&mut cx, |editor, cx| {
7245 editor.navigate_to_definitions(
7246 definitions
7247 .into_iter()
7248 .map(GoToDefinitionLink::Text)
7249 .collect(),
7250 split,
7251 cx,
7252 );
7253 })?;
7254 Ok::<(), anyhow::Error>(())
7255 })
7256 .detach_and_log_err(cx);
7257 }
7258
7259 pub fn navigate_to_definitions(
7260 &mut self,
7261 mut definitions: Vec<GoToDefinitionLink>,
7262 split: bool,
7263 cx: &mut ViewContext<Editor>,
7264 ) {
7265 let Some(workspace) = self.workspace() else {
7266 return;
7267 };
7268 let pane = workspace.read(cx).active_pane().clone();
7269 // If there is one definition, just open it directly
7270 if definitions.len() == 1 {
7271 let definition = definitions.pop().unwrap();
7272 let target_task = match definition {
7273 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7274 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7275 self.compute_target_location(lsp_location, server_id, cx)
7276 }
7277 };
7278 cx.spawn(|editor, mut cx| async move {
7279 let target = target_task.await.context("target resolution task")?;
7280 if let Some(target) = target {
7281 editor.update(&mut cx, |editor, cx| {
7282 let range = target.range.to_offset(target.buffer.read(cx));
7283 let range = editor.range_for_match(&range);
7284 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7285 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7286 s.select_ranges([range]);
7287 });
7288 } else {
7289 cx.window_context().defer(move |cx| {
7290 let target_editor: View<Self> =
7291 workspace.update(cx, |workspace, cx| {
7292 if split {
7293 workspace.split_project_item(target.buffer.clone(), cx)
7294 } else {
7295 workspace.open_project_item(target.buffer.clone(), cx)
7296 }
7297 });
7298 target_editor.update(cx, |target_editor, cx| {
7299 // When selecting a definition in a different buffer, disable the nav history
7300 // to avoid creating a history entry at the previous cursor location.
7301 pane.update(cx, |pane, _| pane.disable_history());
7302 target_editor.change_selections(
7303 Some(Autoscroll::fit()),
7304 cx,
7305 |s| {
7306 s.select_ranges([range]);
7307 },
7308 );
7309 pane.update(cx, |pane, _| pane.enable_history());
7310 });
7311 });
7312 }
7313 })
7314 } else {
7315 Ok(())
7316 }
7317 })
7318 .detach_and_log_err(cx);
7319 } else if !definitions.is_empty() {
7320 let replica_id = self.replica_id(cx);
7321 cx.spawn(|editor, mut cx| async move {
7322 let (title, location_tasks) = editor
7323 .update(&mut cx, |editor, cx| {
7324 let title = definitions
7325 .iter()
7326 .find_map(|definition| match definition {
7327 GoToDefinitionLink::Text(link) => {
7328 link.origin.as_ref().map(|origin| {
7329 let buffer = origin.buffer.read(cx);
7330 format!(
7331 "Definitions for {}",
7332 buffer
7333 .text_for_range(origin.range.clone())
7334 .collect::<String>()
7335 )
7336 })
7337 }
7338 GoToDefinitionLink::InlayHint(_, _) => None,
7339 })
7340 .unwrap_or("Definitions".to_string());
7341 let location_tasks = definitions
7342 .into_iter()
7343 .map(|definition| match definition {
7344 GoToDefinitionLink::Text(link) => {
7345 Task::Ready(Some(Ok(Some(link.target))))
7346 }
7347 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7348 editor.compute_target_location(lsp_location, server_id, cx)
7349 }
7350 })
7351 .collect::<Vec<_>>();
7352 (title, location_tasks)
7353 })
7354 .context("location tasks preparation")?;
7355
7356 let locations = futures::future::join_all(location_tasks)
7357 .await
7358 .into_iter()
7359 .filter_map(|location| location.transpose())
7360 .collect::<Result<_>>()
7361 .context("location tasks")?;
7362 workspace
7363 .update(&mut cx, |workspace, cx| {
7364 Self::open_locations_in_multibuffer(
7365 workspace, locations, replica_id, title, split, cx,
7366 )
7367 })
7368 .ok();
7369
7370 anyhow::Ok(())
7371 })
7372 .detach_and_log_err(cx);
7373 }
7374 }
7375
7376 fn compute_target_location(
7377 &self,
7378 lsp_location: lsp::Location,
7379 server_id: LanguageServerId,
7380 cx: &mut ViewContext<Editor>,
7381 ) -> Task<anyhow::Result<Option<Location>>> {
7382 let Some(project) = self.project.clone() else {
7383 return Task::Ready(Some(Ok(None)));
7384 };
7385
7386 cx.spawn(move |editor, mut cx| async move {
7387 let location_task = editor.update(&mut cx, |editor, cx| {
7388 project.update(cx, |project, cx| {
7389 let language_server_name =
7390 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7391 project
7392 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7393 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7394 });
7395 language_server_name.map(|language_server_name| {
7396 project.open_local_buffer_via_lsp(
7397 lsp_location.uri.clone(),
7398 server_id,
7399 language_server_name,
7400 cx,
7401 )
7402 })
7403 })
7404 })?;
7405 let location = match location_task {
7406 Some(task) => Some({
7407 let target_buffer_handle = task.await.context("open local buffer")?;
7408 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7409 let target_start = target_buffer
7410 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7411 let target_end = target_buffer
7412 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7413 target_buffer.anchor_after(target_start)
7414 ..target_buffer.anchor_before(target_end)
7415 })?;
7416 Location {
7417 buffer: target_buffer_handle,
7418 range,
7419 }
7420 }),
7421 None => None,
7422 };
7423 Ok(location)
7424 })
7425 }
7426
7427 pub fn find_all_references(
7428 &mut self,
7429 _: &FindAllReferences,
7430 cx: &mut ViewContext<Self>,
7431 ) -> Option<Task<Result<()>>> {
7432 let buffer = self.buffer.read(cx);
7433 let head = self.selections.newest::<usize>(cx).head();
7434 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7435 let replica_id = self.replica_id(cx);
7436
7437 let workspace = self.workspace()?;
7438 let project = workspace.read(cx).project().clone();
7439 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7440 Some(cx.spawn(|_, mut cx| async move {
7441 let locations = references.await?;
7442 if locations.is_empty() {
7443 return Ok(());
7444 }
7445
7446 workspace.update(&mut cx, |workspace, cx| {
7447 let title = locations
7448 .first()
7449 .as_ref()
7450 .map(|location| {
7451 let buffer = location.buffer.read(cx);
7452 format!(
7453 "References to `{}`",
7454 buffer
7455 .text_for_range(location.range.clone())
7456 .collect::<String>()
7457 )
7458 })
7459 .unwrap();
7460 Self::open_locations_in_multibuffer(
7461 workspace, locations, replica_id, title, false, cx,
7462 );
7463 })?;
7464
7465 Ok(())
7466 }))
7467 }
7468
7469 /// Opens a multibuffer with the given project locations in it
7470 pub fn open_locations_in_multibuffer(
7471 workspace: &mut Workspace,
7472 mut locations: Vec<Location>,
7473 replica_id: ReplicaId,
7474 title: String,
7475 split: bool,
7476 cx: &mut ViewContext<Workspace>,
7477 ) {
7478 // If there are multiple definitions, open them in a multibuffer
7479 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7480 let mut locations = locations.into_iter().peekable();
7481 let mut ranges_to_highlight = Vec::new();
7482 let capability = workspace.project().read(cx).capability();
7483
7484 let excerpt_buffer = cx.new_model(|cx| {
7485 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7486 while let Some(location) = locations.next() {
7487 let buffer = location.buffer.read(cx);
7488 let mut ranges_for_buffer = Vec::new();
7489 let range = location.range.to_offset(buffer);
7490 ranges_for_buffer.push(range.clone());
7491
7492 while let Some(next_location) = locations.peek() {
7493 if next_location.buffer == location.buffer {
7494 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7495 locations.next();
7496 } else {
7497 break;
7498 }
7499 }
7500
7501 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7502 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7503 location.buffer.clone(),
7504 ranges_for_buffer,
7505 1,
7506 cx,
7507 ))
7508 }
7509
7510 multibuffer.with_title(title)
7511 });
7512
7513 let editor = cx.new_view(|cx| {
7514 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7515 });
7516 editor.update(cx, |editor, cx| {
7517 editor.highlight_background::<Self>(
7518 ranges_to_highlight,
7519 |theme| theme.editor_highlighted_line_background,
7520 cx,
7521 );
7522 });
7523 if split {
7524 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7525 } else {
7526 workspace.add_item(Box::new(editor), cx);
7527 }
7528 }
7529
7530 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7531 use language::ToOffset as _;
7532
7533 let project = self.project.clone()?;
7534 let selection = self.selections.newest_anchor().clone();
7535 let (cursor_buffer, cursor_buffer_position) = self
7536 .buffer
7537 .read(cx)
7538 .text_anchor_for_position(selection.head(), cx)?;
7539 let (tail_buffer, _) = self
7540 .buffer
7541 .read(cx)
7542 .text_anchor_for_position(selection.tail(), cx)?;
7543 if tail_buffer != cursor_buffer {
7544 return None;
7545 }
7546
7547 let snapshot = cursor_buffer.read(cx).snapshot();
7548 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7549 let prepare_rename = project.update(cx, |project, cx| {
7550 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7551 });
7552
7553 Some(cx.spawn(|this, mut cx| async move {
7554 let rename_range = if let Some(range) = prepare_rename.await? {
7555 Some(range)
7556 } else {
7557 this.update(&mut cx, |this, cx| {
7558 let buffer = this.buffer.read(cx).snapshot(cx);
7559 let mut buffer_highlights = this
7560 .document_highlights_for_position(selection.head(), &buffer)
7561 .filter(|highlight| {
7562 highlight.start.excerpt_id == selection.head().excerpt_id
7563 && highlight.end.excerpt_id == selection.head().excerpt_id
7564 });
7565 buffer_highlights
7566 .next()
7567 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7568 })?
7569 };
7570 if let Some(rename_range) = rename_range {
7571 let rename_buffer_range = rename_range.to_offset(&snapshot);
7572 let cursor_offset_in_rename_range =
7573 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7574
7575 this.update(&mut cx, |this, cx| {
7576 this.take_rename(false, cx);
7577 let buffer = this.buffer.read(cx).read(cx);
7578 let cursor_offset = selection.head().to_offset(&buffer);
7579 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7580 let rename_end = rename_start + rename_buffer_range.len();
7581 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7582 let mut old_highlight_id = None;
7583 let old_name: Arc<str> = buffer
7584 .chunks(rename_start..rename_end, true)
7585 .map(|chunk| {
7586 if old_highlight_id.is_none() {
7587 old_highlight_id = chunk.syntax_highlight_id;
7588 }
7589 chunk.text
7590 })
7591 .collect::<String>()
7592 .into();
7593
7594 drop(buffer);
7595
7596 // Position the selection in the rename editor so that it matches the current selection.
7597 this.show_local_selections = false;
7598 let rename_editor = cx.new_view(|cx| {
7599 let mut editor = Editor::single_line(cx);
7600 editor.buffer.update(cx, |buffer, cx| {
7601 buffer.edit([(0..0, old_name.clone())], None, cx)
7602 });
7603 editor.select_all(&SelectAll, cx);
7604 editor
7605 });
7606
7607 let ranges = this
7608 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7609 .into_iter()
7610 .flat_map(|(_, ranges)| ranges.into_iter())
7611 .chain(
7612 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7613 .into_iter()
7614 .flat_map(|(_, ranges)| ranges.into_iter()),
7615 )
7616 .collect();
7617
7618 this.highlight_text::<Rename>(
7619 ranges,
7620 HighlightStyle {
7621 fade_out: Some(0.6),
7622 ..Default::default()
7623 },
7624 cx,
7625 );
7626 let rename_focus_handle = rename_editor.focus_handle(cx);
7627 cx.focus(&rename_focus_handle);
7628 let block_id = this.insert_blocks(
7629 [BlockProperties {
7630 style: BlockStyle::Flex,
7631 position: range.start.clone(),
7632 height: 1,
7633 render: Arc::new({
7634 let rename_editor = rename_editor.clone();
7635 move |cx: &mut BlockContext| {
7636 let mut text_style = cx.editor_style.text.clone();
7637 if let Some(highlight_style) = old_highlight_id
7638 .and_then(|h| h.style(&cx.editor_style.syntax))
7639 {
7640 text_style = text_style.highlight(highlight_style);
7641 }
7642 div()
7643 .pl(cx.anchor_x)
7644 .child(EditorElement::new(
7645 &rename_editor,
7646 EditorStyle {
7647 background: cx.theme().system().transparent,
7648 local_player: cx.editor_style.local_player,
7649 text: text_style,
7650 scrollbar_width: cx.editor_style.scrollbar_width,
7651 syntax: cx.editor_style.syntax.clone(),
7652 status: cx.editor_style.status.clone(),
7653 inlays_style: HighlightStyle {
7654 color: Some(cx.theme().status().hint),
7655 font_weight: Some(FontWeight::BOLD),
7656 ..HighlightStyle::default()
7657 },
7658 suggestions_style: HighlightStyle {
7659 color: Some(cx.theme().status().predictive),
7660 ..HighlightStyle::default()
7661 },
7662 },
7663 ))
7664 .into_any_element()
7665 }
7666 }),
7667 disposition: BlockDisposition::Below,
7668 }],
7669 Some(Autoscroll::fit()),
7670 cx,
7671 )[0];
7672 this.pending_rename = Some(RenameState {
7673 range,
7674 old_name,
7675 editor: rename_editor,
7676 block_id,
7677 });
7678 })?;
7679 }
7680
7681 Ok(())
7682 }))
7683 }
7684
7685 pub fn confirm_rename(
7686 &mut self,
7687 _: &ConfirmRename,
7688 cx: &mut ViewContext<Self>,
7689 ) -> Option<Task<Result<()>>> {
7690 let rename = self.take_rename(false, cx)?;
7691 let workspace = self.workspace()?;
7692 let (start_buffer, start) = self
7693 .buffer
7694 .read(cx)
7695 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7696 let (end_buffer, end) = self
7697 .buffer
7698 .read(cx)
7699 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7700 if start_buffer != end_buffer {
7701 return None;
7702 }
7703
7704 let buffer = start_buffer;
7705 let range = start..end;
7706 let old_name = rename.old_name;
7707 let new_name = rename.editor.read(cx).text(cx);
7708
7709 let rename = workspace
7710 .read(cx)
7711 .project()
7712 .clone()
7713 .update(cx, |project, cx| {
7714 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7715 });
7716 let workspace = workspace.downgrade();
7717
7718 Some(cx.spawn(|editor, mut cx| async move {
7719 let project_transaction = rename.await?;
7720 Self::open_project_transaction(
7721 &editor,
7722 workspace,
7723 project_transaction,
7724 format!("Rename: {} → {}", old_name, new_name),
7725 cx.clone(),
7726 )
7727 .await?;
7728
7729 editor.update(&mut cx, |editor, cx| {
7730 editor.refresh_document_highlights(cx);
7731 })?;
7732 Ok(())
7733 }))
7734 }
7735
7736 fn take_rename(
7737 &mut self,
7738 moving_cursor: bool,
7739 cx: &mut ViewContext<Self>,
7740 ) -> Option<RenameState> {
7741 let rename = self.pending_rename.take()?;
7742 if rename.editor.focus_handle(cx).is_focused(cx) {
7743 cx.focus(&self.focus_handle);
7744 }
7745
7746 self.remove_blocks(
7747 [rename.block_id].into_iter().collect(),
7748 Some(Autoscroll::fit()),
7749 cx,
7750 );
7751 self.clear_highlights::<Rename>(cx);
7752 self.show_local_selections = true;
7753
7754 if moving_cursor {
7755 let rename_editor = rename.editor.read(cx);
7756 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7757
7758 // Update the selection to match the position of the selection inside
7759 // the rename editor.
7760 let snapshot = self.buffer.read(cx).read(cx);
7761 let rename_range = rename.range.to_offset(&snapshot);
7762 let cursor_in_editor = snapshot
7763 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7764 .min(rename_range.end);
7765 drop(snapshot);
7766
7767 self.change_selections(None, cx, |s| {
7768 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7769 });
7770 } else {
7771 self.refresh_document_highlights(cx);
7772 }
7773
7774 Some(rename)
7775 }
7776
7777 #[cfg(any(test, feature = "test-support"))]
7778 pub fn pending_rename(&self) -> Option<&RenameState> {
7779 self.pending_rename.as_ref()
7780 }
7781
7782 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7783 let project = match &self.project {
7784 Some(project) => project.clone(),
7785 None => return None,
7786 };
7787
7788 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7789 }
7790
7791 fn perform_format(
7792 &mut self,
7793 project: Model<Project>,
7794 trigger: FormatTrigger,
7795 cx: &mut ViewContext<Self>,
7796 ) -> Task<Result<()>> {
7797 let buffer = self.buffer().clone();
7798 let buffers = buffer.read(cx).all_buffers();
7799
7800 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7801 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7802
7803 cx.spawn(|_, mut cx| async move {
7804 let transaction = futures::select_biased! {
7805 _ = timeout => {
7806 log::warn!("timed out waiting for formatting");
7807 None
7808 }
7809 transaction = format.log_err().fuse() => transaction,
7810 };
7811
7812 buffer
7813 .update(&mut cx, |buffer, cx| {
7814 if let Some(transaction) = transaction {
7815 if !buffer.is_singleton() {
7816 buffer.push_transaction(&transaction.0, cx);
7817 }
7818 }
7819
7820 cx.notify();
7821 })
7822 .ok();
7823
7824 Ok(())
7825 })
7826 }
7827
7828 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7829 if let Some(project) = self.project.clone() {
7830 self.buffer.update(cx, |multi_buffer, cx| {
7831 project.update(cx, |project, cx| {
7832 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7833 });
7834 })
7835 }
7836 }
7837
7838 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7839 cx.show_character_palette();
7840 }
7841
7842 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7843 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7844 let buffer = self.buffer.read(cx).snapshot(cx);
7845 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7846 let is_valid = buffer
7847 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7848 .any(|entry| {
7849 entry.diagnostic.is_primary
7850 && !entry.range.is_empty()
7851 && entry.range.start == primary_range_start
7852 && entry.diagnostic.message == active_diagnostics.primary_message
7853 });
7854
7855 if is_valid != active_diagnostics.is_valid {
7856 active_diagnostics.is_valid = is_valid;
7857 let mut new_styles = HashMap::default();
7858 for (block_id, diagnostic) in &active_diagnostics.blocks {
7859 new_styles.insert(
7860 *block_id,
7861 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7862 );
7863 }
7864 self.display_map
7865 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7866 }
7867 }
7868 }
7869
7870 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7871 self.dismiss_diagnostics(cx);
7872 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7873 let buffer = self.buffer.read(cx).snapshot(cx);
7874
7875 let mut primary_range = None;
7876 let mut primary_message = None;
7877 let mut group_end = Point::zero();
7878 let diagnostic_group = buffer
7879 .diagnostic_group::<Point>(group_id)
7880 .map(|entry| {
7881 if entry.range.end > group_end {
7882 group_end = entry.range.end;
7883 }
7884 if entry.diagnostic.is_primary {
7885 primary_range = Some(entry.range.clone());
7886 primary_message = Some(entry.diagnostic.message.clone());
7887 }
7888 entry
7889 })
7890 .collect::<Vec<_>>();
7891 let primary_range = primary_range?;
7892 let primary_message = primary_message?;
7893 let primary_range =
7894 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7895
7896 let blocks = display_map
7897 .insert_blocks(
7898 diagnostic_group.iter().map(|entry| {
7899 let diagnostic = entry.diagnostic.clone();
7900 let message_height = diagnostic.message.lines().count() as u8;
7901 BlockProperties {
7902 style: BlockStyle::Fixed,
7903 position: buffer.anchor_after(entry.range.start),
7904 height: message_height,
7905 render: diagnostic_block_renderer(diagnostic, true),
7906 disposition: BlockDisposition::Below,
7907 }
7908 }),
7909 cx,
7910 )
7911 .into_iter()
7912 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7913 .collect();
7914
7915 Some(ActiveDiagnosticGroup {
7916 primary_range,
7917 primary_message,
7918 blocks,
7919 is_valid: true,
7920 })
7921 });
7922 self.active_diagnostics.is_some()
7923 }
7924
7925 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7926 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7927 self.display_map.update(cx, |display_map, cx| {
7928 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7929 });
7930 cx.notify();
7931 }
7932 }
7933
7934 pub fn set_selections_from_remote(
7935 &mut self,
7936 selections: Vec<Selection<Anchor>>,
7937 pending_selection: Option<Selection<Anchor>>,
7938 cx: &mut ViewContext<Self>,
7939 ) {
7940 let old_cursor_position = self.selections.newest_anchor().head();
7941 self.selections.change_with(cx, |s| {
7942 s.select_anchors(selections);
7943 if let Some(pending_selection) = pending_selection {
7944 s.set_pending(pending_selection, SelectMode::Character);
7945 } else {
7946 s.clear_pending();
7947 }
7948 });
7949 self.selections_did_change(false, &old_cursor_position, cx);
7950 }
7951
7952 fn push_to_selection_history(&mut self) {
7953 self.selection_history.push(SelectionHistoryEntry {
7954 selections: self.selections.disjoint_anchors(),
7955 select_next_state: self.select_next_state.clone(),
7956 select_prev_state: self.select_prev_state.clone(),
7957 add_selections_state: self.add_selections_state.clone(),
7958 });
7959 }
7960
7961 pub fn transact(
7962 &mut self,
7963 cx: &mut ViewContext<Self>,
7964 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7965 ) -> Option<TransactionId> {
7966 self.start_transaction_at(Instant::now(), cx);
7967 update(self, cx);
7968 self.end_transaction_at(Instant::now(), cx)
7969 }
7970
7971 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7972 self.end_selection(cx);
7973 if let Some(tx_id) = self
7974 .buffer
7975 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7976 {
7977 self.selection_history
7978 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7979 }
7980 }
7981
7982 fn end_transaction_at(
7983 &mut self,
7984 now: Instant,
7985 cx: &mut ViewContext<Self>,
7986 ) -> Option<TransactionId> {
7987 if let Some(tx_id) = self
7988 .buffer
7989 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7990 {
7991 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7992 *end_selections = Some(self.selections.disjoint_anchors());
7993 } else {
7994 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7995 }
7996
7997 cx.emit(EditorEvent::Edited);
7998 Some(tx_id)
7999 } else {
8000 None
8001 }
8002 }
8003
8004 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8005 let mut fold_ranges = Vec::new();
8006
8007 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8008
8009 let selections = self.selections.all_adjusted(cx);
8010 for selection in selections {
8011 let range = selection.range().sorted();
8012 let buffer_start_row = range.start.row;
8013
8014 for row in (0..=range.end.row).rev() {
8015 let fold_range = display_map.foldable_range(row);
8016
8017 if let Some(fold_range) = fold_range {
8018 if fold_range.end.row >= buffer_start_row {
8019 fold_ranges.push(fold_range);
8020 if row <= range.start.row {
8021 break;
8022 }
8023 }
8024 }
8025 }
8026 }
8027
8028 self.fold_ranges(fold_ranges, true, cx);
8029 }
8030
8031 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8032 let buffer_row = fold_at.buffer_row;
8033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8034
8035 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8036 let autoscroll = self
8037 .selections
8038 .all::<Point>(cx)
8039 .iter()
8040 .any(|selection| fold_range.overlaps(&selection.range()));
8041
8042 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8043 }
8044 }
8045
8046 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8047 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8048 let buffer = &display_map.buffer_snapshot;
8049 let selections = self.selections.all::<Point>(cx);
8050 let ranges = selections
8051 .iter()
8052 .map(|s| {
8053 let range = s.display_range(&display_map).sorted();
8054 let mut start = range.start.to_point(&display_map);
8055 let mut end = range.end.to_point(&display_map);
8056 start.column = 0;
8057 end.column = buffer.line_len(end.row);
8058 start..end
8059 })
8060 .collect::<Vec<_>>();
8061
8062 self.unfold_ranges(ranges, true, true, cx);
8063 }
8064
8065 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8067
8068 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8069 ..Point::new(
8070 unfold_at.buffer_row,
8071 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8072 );
8073
8074 let autoscroll = self
8075 .selections
8076 .all::<Point>(cx)
8077 .iter()
8078 .any(|selection| selection.range().overlaps(&intersection_range));
8079
8080 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8081 }
8082
8083 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8084 let selections = self.selections.all::<Point>(cx);
8085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8086 let line_mode = self.selections.line_mode;
8087 let ranges = selections.into_iter().map(|s| {
8088 if line_mode {
8089 let start = Point::new(s.start.row, 0);
8090 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8091 start..end
8092 } else {
8093 s.start..s.end
8094 }
8095 });
8096 self.fold_ranges(ranges, true, cx);
8097 }
8098
8099 pub fn fold_ranges<T: ToOffset + Clone>(
8100 &mut self,
8101 ranges: impl IntoIterator<Item = Range<T>>,
8102 auto_scroll: bool,
8103 cx: &mut ViewContext<Self>,
8104 ) {
8105 let mut ranges = ranges.into_iter().peekable();
8106 if ranges.peek().is_some() {
8107 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8108
8109 if auto_scroll {
8110 self.request_autoscroll(Autoscroll::fit(), cx);
8111 }
8112
8113 cx.notify();
8114 }
8115 }
8116
8117 pub fn unfold_ranges<T: ToOffset + Clone>(
8118 &mut self,
8119 ranges: impl IntoIterator<Item = Range<T>>,
8120 inclusive: bool,
8121 auto_scroll: bool,
8122 cx: &mut ViewContext<Self>,
8123 ) {
8124 let mut ranges = ranges.into_iter().peekable();
8125 if ranges.peek().is_some() {
8126 self.display_map
8127 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8128 if auto_scroll {
8129 self.request_autoscroll(Autoscroll::fit(), cx);
8130 }
8131
8132 cx.notify();
8133 }
8134 }
8135
8136 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8137 if hovered != self.gutter_hovered {
8138 self.gutter_hovered = hovered;
8139 cx.notify();
8140 }
8141 }
8142
8143 pub fn insert_blocks(
8144 &mut self,
8145 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8146 autoscroll: Option<Autoscroll>,
8147 cx: &mut ViewContext<Self>,
8148 ) -> Vec<BlockId> {
8149 let blocks = self
8150 .display_map
8151 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8152 if let Some(autoscroll) = autoscroll {
8153 self.request_autoscroll(autoscroll, cx);
8154 }
8155 blocks
8156 }
8157
8158 pub fn replace_blocks(
8159 &mut self,
8160 blocks: HashMap<BlockId, RenderBlock>,
8161 autoscroll: Option<Autoscroll>,
8162 cx: &mut ViewContext<Self>,
8163 ) {
8164 self.display_map
8165 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8166 if let Some(autoscroll) = autoscroll {
8167 self.request_autoscroll(autoscroll, cx);
8168 }
8169 }
8170
8171 pub fn remove_blocks(
8172 &mut self,
8173 block_ids: HashSet<BlockId>,
8174 autoscroll: Option<Autoscroll>,
8175 cx: &mut ViewContext<Self>,
8176 ) {
8177 self.display_map.update(cx, |display_map, cx| {
8178 display_map.remove_blocks(block_ids, cx)
8179 });
8180 if let Some(autoscroll) = autoscroll {
8181 self.request_autoscroll(autoscroll, cx);
8182 }
8183 }
8184
8185 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8186 self.display_map
8187 .update(cx, |map, cx| map.snapshot(cx))
8188 .longest_row()
8189 }
8190
8191 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8192 self.display_map
8193 .update(cx, |map, cx| map.snapshot(cx))
8194 .max_point()
8195 }
8196
8197 pub fn text(&self, cx: &AppContext) -> String {
8198 self.buffer.read(cx).read(cx).text()
8199 }
8200
8201 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8202 let text = self.text(cx);
8203 let text = text.trim();
8204
8205 if text.is_empty() {
8206 return None;
8207 }
8208
8209 Some(text.to_string())
8210 }
8211
8212 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8213 self.transact(cx, |this, cx| {
8214 this.buffer
8215 .read(cx)
8216 .as_singleton()
8217 .expect("you can only call set_text on editors for singleton buffers")
8218 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8219 });
8220 }
8221
8222 pub fn display_text(&self, cx: &mut AppContext) -> String {
8223 self.display_map
8224 .update(cx, |map, cx| map.snapshot(cx))
8225 .text()
8226 }
8227
8228 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8229 let mut wrap_guides = smallvec::smallvec![];
8230
8231 if self.show_wrap_guides == Some(false) {
8232 return wrap_guides;
8233 }
8234
8235 let settings = self.buffer.read(cx).settings_at(0, cx);
8236 if settings.show_wrap_guides {
8237 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8238 wrap_guides.push((soft_wrap as usize, true));
8239 }
8240 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8241 }
8242
8243 wrap_guides
8244 }
8245
8246 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8247 let settings = self.buffer.read(cx).settings_at(0, cx);
8248 let mode = self
8249 .soft_wrap_mode_override
8250 .unwrap_or_else(|| settings.soft_wrap);
8251 match mode {
8252 language_settings::SoftWrap::None => SoftWrap::None,
8253 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8254 language_settings::SoftWrap::PreferredLineLength => {
8255 SoftWrap::Column(settings.preferred_line_length)
8256 }
8257 }
8258 }
8259
8260 pub fn set_soft_wrap_mode(
8261 &mut self,
8262 mode: language_settings::SoftWrap,
8263 cx: &mut ViewContext<Self>,
8264 ) {
8265 self.soft_wrap_mode_override = Some(mode);
8266 cx.notify();
8267 }
8268
8269 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8270 let rem_size = cx.rem_size();
8271 self.display_map.update(cx, |map, cx| {
8272 map.set_font(
8273 style.text.font(),
8274 style.text.font_size.to_pixels(rem_size),
8275 cx,
8276 )
8277 });
8278 self.style = Some(style);
8279 }
8280
8281 #[cfg(any(test, feature = "test-support"))]
8282 pub fn style(&self) -> Option<&EditorStyle> {
8283 self.style.as_ref()
8284 }
8285
8286 // Called by the element. This method is not designed to be called outside of the editor
8287 // element's layout code because it does not notify when rewrapping is computed synchronously.
8288 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8289 self.display_map
8290 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8291 }
8292
8293 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8294 if self.soft_wrap_mode_override.is_some() {
8295 self.soft_wrap_mode_override.take();
8296 } else {
8297 let soft_wrap = match self.soft_wrap_mode(cx) {
8298 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8299 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8300 };
8301 self.soft_wrap_mode_override = Some(soft_wrap);
8302 }
8303 cx.notify();
8304 }
8305
8306 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8307 self.show_gutter = show_gutter;
8308 cx.notify();
8309 }
8310
8311 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8312 self.show_wrap_guides = Some(show_gutter);
8313 cx.notify();
8314 }
8315
8316 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8317 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8318 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8319 cx.reveal_path(&file.abs_path(cx));
8320 }
8321 }
8322 }
8323
8324 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8325 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8326 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8327 if let Some(path) = file.abs_path(cx).to_str() {
8328 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8329 }
8330 }
8331 }
8332 }
8333
8334 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8335 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8336 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8337 if let Some(path) = file.path().to_str() {
8338 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8339 }
8340 }
8341 }
8342 }
8343
8344 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8345 use git::permalink::{build_permalink, BuildPermalinkParams};
8346
8347 let permalink = maybe!({
8348 let project = self.project.clone()?;
8349 let project = project.read(cx);
8350
8351 let worktree = project.visible_worktrees(cx).next()?;
8352
8353 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8354 cwd.push(".git");
8355
8356 let repo = project.fs().open_repo(&cwd)?;
8357 let origin_url = repo.lock().remote_url("origin")?;
8358 let sha = repo.lock().head_sha()?;
8359
8360 let buffer = self.buffer().read(cx).as_singleton()?;
8361 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8362 let path = file.path().to_str().map(|path| path.to_string())?;
8363
8364 let selections = self.selections.all::<Point>(cx);
8365 let selection = selections.iter().peekable().next();
8366
8367 build_permalink(BuildPermalinkParams {
8368 remote_url: &origin_url,
8369 sha: &sha,
8370 path: &path,
8371 selection: selection.map(|selection| selection.range()),
8372 })
8373 .log_err()
8374 });
8375
8376 if let Some(permalink) = permalink {
8377 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8378 }
8379 }
8380
8381 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8382 self.highlighted_rows = rows;
8383 }
8384
8385 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8386 self.highlighted_rows.clone()
8387 }
8388
8389 pub fn highlight_background<T: 'static>(
8390 &mut self,
8391 ranges: Vec<Range<Anchor>>,
8392 color_fetcher: fn(&ThemeColors) -> Hsla,
8393 cx: &mut ViewContext<Self>,
8394 ) {
8395 self.background_highlights
8396 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8397 cx.notify();
8398 }
8399
8400 pub(crate) fn highlight_inlay_background<T: 'static>(
8401 &mut self,
8402 ranges: Vec<InlayHighlight>,
8403 color_fetcher: fn(&ThemeColors) -> Hsla,
8404 cx: &mut ViewContext<Self>,
8405 ) {
8406 // TODO: no actual highlights happen for inlays currently, find a way to do that
8407 self.inlay_background_highlights
8408 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8409 cx.notify();
8410 }
8411
8412 pub fn clear_background_highlights<T: 'static>(
8413 &mut self,
8414 cx: &mut ViewContext<Self>,
8415 ) -> Option<BackgroundHighlight> {
8416 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8417 let inlay_highlights = self
8418 .inlay_background_highlights
8419 .remove(&Some(TypeId::of::<T>()));
8420 if text_highlights.is_some() || inlay_highlights.is_some() {
8421 cx.notify();
8422 }
8423 text_highlights
8424 }
8425
8426 #[cfg(feature = "test-support")]
8427 pub fn all_text_background_highlights(
8428 &mut self,
8429 cx: &mut ViewContext<Self>,
8430 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8431 let snapshot = self.snapshot(cx);
8432 let buffer = &snapshot.buffer_snapshot;
8433 let start = buffer.anchor_before(0);
8434 let end = buffer.anchor_after(buffer.len());
8435 let theme = cx.theme().colors();
8436 self.background_highlights_in_range(start..end, &snapshot, theme)
8437 }
8438
8439 fn document_highlights_for_position<'a>(
8440 &'a self,
8441 position: Anchor,
8442 buffer: &'a MultiBufferSnapshot,
8443 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8444 let read_highlights = self
8445 .background_highlights
8446 .get(&TypeId::of::<DocumentHighlightRead>())
8447 .map(|h| &h.1);
8448 let write_highlights = self
8449 .background_highlights
8450 .get(&TypeId::of::<DocumentHighlightWrite>())
8451 .map(|h| &h.1);
8452 let left_position = position.bias_left(buffer);
8453 let right_position = position.bias_right(buffer);
8454 read_highlights
8455 .into_iter()
8456 .chain(write_highlights)
8457 .flat_map(move |ranges| {
8458 let start_ix = match ranges.binary_search_by(|probe| {
8459 let cmp = probe.end.cmp(&left_position, buffer);
8460 if cmp.is_ge() {
8461 Ordering::Greater
8462 } else {
8463 Ordering::Less
8464 }
8465 }) {
8466 Ok(i) | Err(i) => i,
8467 };
8468
8469 let right_position = right_position.clone();
8470 ranges[start_ix..]
8471 .iter()
8472 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8473 })
8474 }
8475
8476 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8477 self.background_highlights
8478 .get(&TypeId::of::<T>())
8479 .map_or(false, |(_, highlights)| !highlights.is_empty())
8480 }
8481
8482 pub fn background_highlights_in_range(
8483 &self,
8484 search_range: Range<Anchor>,
8485 display_snapshot: &DisplaySnapshot,
8486 theme: &ThemeColors,
8487 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8488 let mut results = Vec::new();
8489 for (color_fetcher, ranges) in self.background_highlights.values() {
8490 let color = color_fetcher(theme);
8491 let start_ix = match ranges.binary_search_by(|probe| {
8492 let cmp = probe
8493 .end
8494 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8495 if cmp.is_gt() {
8496 Ordering::Greater
8497 } else {
8498 Ordering::Less
8499 }
8500 }) {
8501 Ok(i) | Err(i) => i,
8502 };
8503 for range in &ranges[start_ix..] {
8504 if range
8505 .start
8506 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8507 .is_ge()
8508 {
8509 break;
8510 }
8511
8512 let start = range.start.to_display_point(&display_snapshot);
8513 let end = range.end.to_display_point(&display_snapshot);
8514 results.push((start..end, color))
8515 }
8516 }
8517 results
8518 }
8519
8520 pub fn background_highlight_row_ranges<T: 'static>(
8521 &self,
8522 search_range: Range<Anchor>,
8523 display_snapshot: &DisplaySnapshot,
8524 count: usize,
8525 ) -> Vec<RangeInclusive<DisplayPoint>> {
8526 let mut results = Vec::new();
8527 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8528 return vec![];
8529 };
8530
8531 let start_ix = match ranges.binary_search_by(|probe| {
8532 let cmp = probe
8533 .end
8534 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8535 if cmp.is_gt() {
8536 Ordering::Greater
8537 } else {
8538 Ordering::Less
8539 }
8540 }) {
8541 Ok(i) | Err(i) => i,
8542 };
8543 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8544 if let (Some(start_display), Some(end_display)) = (start, end) {
8545 results.push(
8546 start_display.to_display_point(display_snapshot)
8547 ..=end_display.to_display_point(display_snapshot),
8548 );
8549 }
8550 };
8551 let mut start_row: Option<Point> = None;
8552 let mut end_row: Option<Point> = None;
8553 if ranges.len() > count {
8554 return Vec::new();
8555 }
8556 for range in &ranges[start_ix..] {
8557 if range
8558 .start
8559 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8560 .is_ge()
8561 {
8562 break;
8563 }
8564 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8565 if let Some(current_row) = &end_row {
8566 if end.row == current_row.row {
8567 continue;
8568 }
8569 }
8570 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8571 if start_row.is_none() {
8572 assert_eq!(end_row, None);
8573 start_row = Some(start);
8574 end_row = Some(end);
8575 continue;
8576 }
8577 if let Some(current_end) = end_row.as_mut() {
8578 if start.row > current_end.row + 1 {
8579 push_region(start_row, end_row);
8580 start_row = Some(start);
8581 end_row = Some(end);
8582 } else {
8583 // Merge two hunks.
8584 *current_end = end;
8585 }
8586 } else {
8587 unreachable!();
8588 }
8589 }
8590 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8591 push_region(start_row, end_row);
8592 results
8593 }
8594
8595 /// Get the text ranges corresponding to the redaction query
8596 pub fn redacted_ranges(
8597 &self,
8598 search_range: Range<Anchor>,
8599 display_snapshot: &DisplaySnapshot,
8600 cx: &mut ViewContext<Self>,
8601 ) -> Vec<Range<DisplayPoint>> {
8602 display_snapshot
8603 .buffer_snapshot
8604 .redacted_ranges(search_range, |file| {
8605 if let Some(file) = file {
8606 file.is_private()
8607 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8608 .redact_private_values
8609 } else {
8610 false
8611 }
8612 })
8613 .map(|range| {
8614 range.start.to_display_point(display_snapshot)
8615 ..range.end.to_display_point(display_snapshot)
8616 })
8617 .collect()
8618 }
8619
8620 pub fn highlight_text<T: 'static>(
8621 &mut self,
8622 ranges: Vec<Range<Anchor>>,
8623 style: HighlightStyle,
8624 cx: &mut ViewContext<Self>,
8625 ) {
8626 self.display_map.update(cx, |map, _| {
8627 map.highlight_text(TypeId::of::<T>(), ranges, style)
8628 });
8629 cx.notify();
8630 }
8631
8632 pub(crate) fn highlight_inlays<T: 'static>(
8633 &mut self,
8634 highlights: Vec<InlayHighlight>,
8635 style: HighlightStyle,
8636 cx: &mut ViewContext<Self>,
8637 ) {
8638 self.display_map.update(cx, |map, _| {
8639 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8640 });
8641 cx.notify();
8642 }
8643
8644 pub fn text_highlights<'a, T: 'static>(
8645 &'a self,
8646 cx: &'a AppContext,
8647 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8648 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8649 }
8650
8651 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8652 let cleared = self
8653 .display_map
8654 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8655 if cleared {
8656 cx.notify();
8657 }
8658 }
8659
8660 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8661 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8662 && self.focus_handle.is_focused(cx)
8663 }
8664
8665 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8666 cx.notify();
8667 }
8668
8669 fn on_buffer_event(
8670 &mut self,
8671 multibuffer: Model<MultiBuffer>,
8672 event: &multi_buffer::Event,
8673 cx: &mut ViewContext<Self>,
8674 ) {
8675 match event {
8676 multi_buffer::Event::Edited {
8677 singleton_buffer_edited,
8678 } => {
8679 self.refresh_active_diagnostics(cx);
8680 self.refresh_code_actions(cx);
8681 if self.has_active_copilot_suggestion(cx) {
8682 self.update_visible_copilot_suggestion(cx);
8683 }
8684 cx.emit(EditorEvent::BufferEdited);
8685 cx.emit(SearchEvent::MatchesInvalidated);
8686
8687 if *singleton_buffer_edited {
8688 if let Some(project) = &self.project {
8689 let project = project.read(cx);
8690 let languages_affected = multibuffer
8691 .read(cx)
8692 .all_buffers()
8693 .into_iter()
8694 .filter_map(|buffer| {
8695 let buffer = buffer.read(cx);
8696 let language = buffer.language()?;
8697 if project.is_local()
8698 && project.language_servers_for_buffer(buffer, cx).count() == 0
8699 {
8700 None
8701 } else {
8702 Some(language)
8703 }
8704 })
8705 .cloned()
8706 .collect::<HashSet<_>>();
8707 if !languages_affected.is_empty() {
8708 self.refresh_inlay_hints(
8709 InlayHintRefreshReason::BufferEdited(languages_affected),
8710 cx,
8711 );
8712 }
8713 }
8714 }
8715
8716 let Some(project) = &self.project else { return };
8717 let telemetry = project.read(cx).client().telemetry().clone();
8718 telemetry.log_edit_event("editor");
8719 }
8720 multi_buffer::Event::ExcerptsAdded {
8721 buffer,
8722 predecessor,
8723 excerpts,
8724 } => {
8725 cx.emit(EditorEvent::ExcerptsAdded {
8726 buffer: buffer.clone(),
8727 predecessor: *predecessor,
8728 excerpts: excerpts.clone(),
8729 });
8730 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8731 }
8732 multi_buffer::Event::ExcerptsRemoved { ids } => {
8733 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8734 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8735 }
8736 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8737 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8738 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8739 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8740 cx.emit(EditorEvent::TitleChanged)
8741 }
8742 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8743 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8744 multi_buffer::Event::DiagnosticsUpdated => {
8745 self.refresh_active_diagnostics(cx);
8746 }
8747 _ => {}
8748 };
8749 }
8750
8751 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8752 cx.notify();
8753 }
8754
8755 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8756 self.refresh_copilot_suggestions(true, cx);
8757 self.refresh_inlay_hints(
8758 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8759 self.selections.newest_anchor().head(),
8760 &self.buffer.read(cx).snapshot(cx),
8761 cx,
8762 )),
8763 cx,
8764 );
8765 cx.notify();
8766 }
8767
8768 pub fn set_searchable(&mut self, searchable: bool) {
8769 self.searchable = searchable;
8770 }
8771
8772 pub fn searchable(&self) -> bool {
8773 self.searchable
8774 }
8775
8776 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8777 let buffer = self.buffer.read(cx);
8778 if buffer.is_singleton() {
8779 cx.propagate();
8780 return;
8781 }
8782
8783 let Some(workspace) = self.workspace() else {
8784 cx.propagate();
8785 return;
8786 };
8787
8788 let mut new_selections_by_buffer = HashMap::default();
8789 for selection in self.selections.all::<usize>(cx) {
8790 for (buffer, mut range, _) in
8791 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8792 {
8793 if selection.reversed {
8794 mem::swap(&mut range.start, &mut range.end);
8795 }
8796 new_selections_by_buffer
8797 .entry(buffer)
8798 .or_insert(Vec::new())
8799 .push(range)
8800 }
8801 }
8802
8803 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8804
8805 // We defer the pane interaction because we ourselves are a workspace item
8806 // and activating a new item causes the pane to call a method on us reentrantly,
8807 // which panics if we're on the stack.
8808 cx.window_context().defer(move |cx| {
8809 workspace.update(cx, |workspace, cx| {
8810 let pane = workspace.active_pane().clone();
8811 pane.update(cx, |pane, _| pane.disable_history());
8812
8813 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8814 let editor = workspace.open_project_item::<Self>(buffer, cx);
8815 editor.update(cx, |editor, cx| {
8816 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8817 s.select_ranges(ranges);
8818 });
8819 });
8820 }
8821
8822 pane.update(cx, |pane, _| pane.enable_history());
8823 })
8824 });
8825 }
8826
8827 fn jump(
8828 &mut self,
8829 path: ProjectPath,
8830 position: Point,
8831 anchor: language::Anchor,
8832 cx: &mut ViewContext<Self>,
8833 ) {
8834 let workspace = self.workspace();
8835 cx.spawn(|_, mut cx| async move {
8836 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8837 let editor = workspace.update(&mut cx, |workspace, cx| {
8838 workspace.open_path(path, None, true, cx)
8839 })?;
8840 let editor = editor
8841 .await?
8842 .downcast::<Editor>()
8843 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8844 .downgrade();
8845 editor.update(&mut cx, |editor, cx| {
8846 let buffer = editor
8847 .buffer()
8848 .read(cx)
8849 .as_singleton()
8850 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8851 let buffer = buffer.read(cx);
8852 let cursor = if buffer.can_resolve(&anchor) {
8853 language::ToPoint::to_point(&anchor, buffer)
8854 } else {
8855 buffer.clip_point(position, Bias::Left)
8856 };
8857
8858 let nav_history = editor.nav_history.take();
8859 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8860 s.select_ranges([cursor..cursor]);
8861 });
8862 editor.nav_history = nav_history;
8863
8864 anyhow::Ok(())
8865 })??;
8866
8867 anyhow::Ok(())
8868 })
8869 .detach_and_log_err(cx);
8870 }
8871
8872 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8873 let snapshot = self.buffer.read(cx).read(cx);
8874 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8875 Some(
8876 ranges
8877 .iter()
8878 .map(move |range| {
8879 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8880 })
8881 .collect(),
8882 )
8883 }
8884
8885 fn selection_replacement_ranges(
8886 &self,
8887 range: Range<OffsetUtf16>,
8888 cx: &AppContext,
8889 ) -> Vec<Range<OffsetUtf16>> {
8890 let selections = self.selections.all::<OffsetUtf16>(cx);
8891 let newest_selection = selections
8892 .iter()
8893 .max_by_key(|selection| selection.id)
8894 .unwrap();
8895 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8896 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8897 let snapshot = self.buffer.read(cx).read(cx);
8898 selections
8899 .into_iter()
8900 .map(|mut selection| {
8901 selection.start.0 =
8902 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8903 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8904 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8905 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8906 })
8907 .collect()
8908 }
8909
8910 fn report_copilot_event(
8911 &self,
8912 suggestion_id: Option<String>,
8913 suggestion_accepted: bool,
8914 cx: &AppContext,
8915 ) {
8916 let Some(project) = &self.project else { return };
8917
8918 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8919 let file_extension = self
8920 .buffer
8921 .read(cx)
8922 .as_singleton()
8923 .and_then(|b| b.read(cx).file())
8924 .and_then(|file| Path::new(file.file_name(cx)).extension())
8925 .and_then(|e| e.to_str())
8926 .map(|a| a.to_string());
8927
8928 let telemetry = project.read(cx).client().telemetry().clone();
8929
8930 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8931 }
8932
8933 #[cfg(any(test, feature = "test-support"))]
8934 fn report_editor_event(
8935 &self,
8936 _operation: &'static str,
8937 _file_extension: Option<String>,
8938 _cx: &AppContext,
8939 ) {
8940 }
8941
8942 #[cfg(not(any(test, feature = "test-support")))]
8943 fn report_editor_event(
8944 &self,
8945 operation: &'static str,
8946 file_extension: Option<String>,
8947 cx: &AppContext,
8948 ) {
8949 let Some(project) = &self.project else { return };
8950
8951 // If None, we are in a file without an extension
8952 let file = self
8953 .buffer
8954 .read(cx)
8955 .as_singleton()
8956 .and_then(|b| b.read(cx).file());
8957 let file_extension = file_extension.or(file
8958 .as_ref()
8959 .and_then(|file| Path::new(file.file_name(cx)).extension())
8960 .and_then(|e| e.to_str())
8961 .map(|a| a.to_string()));
8962
8963 let vim_mode = cx
8964 .global::<SettingsStore>()
8965 .raw_user_settings()
8966 .get("vim_mode")
8967 == Some(&serde_json::Value::Bool(true));
8968 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8969 let copilot_enabled_for_language = self
8970 .buffer
8971 .read(cx)
8972 .settings_at(0, cx)
8973 .show_copilot_suggestions;
8974
8975 let telemetry = project.read(cx).client().telemetry().clone();
8976 telemetry.report_editor_event(
8977 file_extension,
8978 vim_mode,
8979 operation,
8980 copilot_enabled,
8981 copilot_enabled_for_language,
8982 )
8983 }
8984
8985 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8986 /// with each line being an array of {text, highlight} objects.
8987 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8988 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8989 return;
8990 };
8991
8992 #[derive(Serialize)]
8993 struct Chunk<'a> {
8994 text: String,
8995 highlight: Option<&'a str>,
8996 }
8997
8998 let snapshot = buffer.read(cx).snapshot();
8999 let range = self
9000 .selected_text_range(cx)
9001 .and_then(|selected_range| {
9002 if selected_range.is_empty() {
9003 None
9004 } else {
9005 Some(selected_range)
9006 }
9007 })
9008 .unwrap_or_else(|| 0..snapshot.len());
9009
9010 let chunks = snapshot.chunks(range, true);
9011 let mut lines = Vec::new();
9012 let mut line: VecDeque<Chunk> = VecDeque::new();
9013
9014 let Some(style) = self.style.as_ref() else {
9015 return;
9016 };
9017
9018 for chunk in chunks {
9019 let highlight = chunk
9020 .syntax_highlight_id
9021 .and_then(|id| id.name(&style.syntax));
9022 let mut chunk_lines = chunk.text.split("\n").peekable();
9023 while let Some(text) = chunk_lines.next() {
9024 let mut merged_with_last_token = false;
9025 if let Some(last_token) = line.back_mut() {
9026 if last_token.highlight == highlight {
9027 last_token.text.push_str(text);
9028 merged_with_last_token = true;
9029 }
9030 }
9031
9032 if !merged_with_last_token {
9033 line.push_back(Chunk {
9034 text: text.into(),
9035 highlight,
9036 });
9037 }
9038
9039 if chunk_lines.peek().is_some() {
9040 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9041 line.pop_front();
9042 }
9043 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9044 line.pop_back();
9045 }
9046
9047 lines.push(mem::take(&mut line));
9048 }
9049 }
9050 }
9051
9052 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9053 return;
9054 };
9055 cx.write_to_clipboard(ClipboardItem::new(lines));
9056 }
9057
9058 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9059 &self.inlay_hint_cache
9060 }
9061
9062 pub fn replay_insert_event(
9063 &mut self,
9064 text: &str,
9065 relative_utf16_range: Option<Range<isize>>,
9066 cx: &mut ViewContext<Self>,
9067 ) {
9068 if !self.input_enabled {
9069 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9070 return;
9071 }
9072 if let Some(relative_utf16_range) = relative_utf16_range {
9073 let selections = self.selections.all::<OffsetUtf16>(cx);
9074 self.change_selections(None, cx, |s| {
9075 let new_ranges = selections.into_iter().map(|range| {
9076 let start = OffsetUtf16(
9077 range
9078 .head()
9079 .0
9080 .saturating_add_signed(relative_utf16_range.start),
9081 );
9082 let end = OffsetUtf16(
9083 range
9084 .head()
9085 .0
9086 .saturating_add_signed(relative_utf16_range.end),
9087 );
9088 start..end
9089 });
9090 s.select_ranges(new_ranges);
9091 });
9092 }
9093
9094 self.handle_input(text, cx);
9095 }
9096
9097 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9098 let Some(project) = self.project.as_ref() else {
9099 return false;
9100 };
9101 let project = project.read(cx);
9102
9103 let mut supports = false;
9104 self.buffer().read(cx).for_each_buffer(|buffer| {
9105 if !supports {
9106 supports = project
9107 .language_servers_for_buffer(buffer.read(cx), cx)
9108 .any(
9109 |(_, server)| match server.capabilities().inlay_hint_provider {
9110 Some(lsp::OneOf::Left(enabled)) => enabled,
9111 Some(lsp::OneOf::Right(_)) => true,
9112 None => false,
9113 },
9114 )
9115 }
9116 });
9117 supports
9118 }
9119
9120 pub fn focus(&self, cx: &mut WindowContext) {
9121 cx.focus(&self.focus_handle)
9122 }
9123
9124 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9125 self.focus_handle.is_focused(cx)
9126 }
9127
9128 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9129 cx.emit(EditorEvent::Focused);
9130
9131 if let Some(rename) = self.pending_rename.as_ref() {
9132 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9133 cx.focus(&rename_editor_focus_handle);
9134 } else {
9135 self.blink_manager.update(cx, BlinkManager::enable);
9136 self.show_cursor_names(cx);
9137 self.buffer.update(cx, |buffer, cx| {
9138 buffer.finalize_last_transaction(cx);
9139 if self.leader_peer_id.is_none() {
9140 buffer.set_active_selections(
9141 &self.selections.disjoint_anchors(),
9142 self.selections.line_mode,
9143 self.cursor_shape,
9144 cx,
9145 );
9146 }
9147 });
9148 }
9149 }
9150
9151 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9152 self.blink_manager.update(cx, BlinkManager::disable);
9153 self.buffer
9154 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9155 self.hide_context_menu(cx);
9156 hide_hover(self, cx);
9157 cx.emit(EditorEvent::Blurred);
9158 cx.notify();
9159 }
9160
9161 pub fn register_action<A: Action>(
9162 &mut self,
9163 listener: impl Fn(&A, &mut WindowContext) + 'static,
9164 ) -> &mut Self {
9165 let listener = Arc::new(listener);
9166
9167 self.editor_actions.push(Box::new(move |cx| {
9168 let _view = cx.view().clone();
9169 let cx = cx.window_context();
9170 let listener = listener.clone();
9171 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9172 let action = action.downcast_ref().unwrap();
9173 if phase == DispatchPhase::Bubble {
9174 listener(action, cx)
9175 }
9176 })
9177 }));
9178 self
9179 }
9180}
9181
9182pub trait CollaborationHub {
9183 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9184 fn user_participant_indices<'a>(
9185 &self,
9186 cx: &'a AppContext,
9187 ) -> &'a HashMap<u64, ParticipantIndex>;
9188 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9189}
9190
9191impl CollaborationHub for Model<Project> {
9192 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9193 self.read(cx).collaborators()
9194 }
9195
9196 fn user_participant_indices<'a>(
9197 &self,
9198 cx: &'a AppContext,
9199 ) -> &'a HashMap<u64, ParticipantIndex> {
9200 self.read(cx).user_store().read(cx).participant_indices()
9201 }
9202
9203 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9204 let this = self.read(cx);
9205 let user_ids = this.collaborators().values().map(|c| c.user_id);
9206 this.user_store().read_with(cx, |user_store, cx| {
9207 user_store.participant_names(user_ids, cx)
9208 })
9209 }
9210}
9211
9212pub trait CompletionProvider {
9213 fn completions(
9214 &self,
9215 buffer: &Model<Buffer>,
9216 buffer_position: text::Anchor,
9217 cx: &mut ViewContext<Editor>,
9218 ) -> Task<Result<Vec<Completion>>>;
9219
9220 fn resolve_completions(
9221 &self,
9222 completion_indices: Vec<usize>,
9223 completions: Arc<RwLock<Box<[Completion]>>>,
9224 cx: &mut ViewContext<Editor>,
9225 ) -> Task<Result<bool>>;
9226
9227 fn apply_additional_edits_for_completion(
9228 &self,
9229 buffer: Model<Buffer>,
9230 completion: Completion,
9231 push_to_history: bool,
9232 cx: &mut ViewContext<Editor>,
9233 ) -> Task<Result<Option<language::Transaction>>>;
9234}
9235
9236impl CompletionProvider for Model<Project> {
9237 fn completions(
9238 &self,
9239 buffer: &Model<Buffer>,
9240 buffer_position: text::Anchor,
9241 cx: &mut ViewContext<Editor>,
9242 ) -> Task<Result<Vec<Completion>>> {
9243 self.update(cx, |project, cx| {
9244 project.completions(&buffer, buffer_position, cx)
9245 })
9246 }
9247
9248 fn resolve_completions(
9249 &self,
9250 completion_indices: Vec<usize>,
9251 completions: Arc<RwLock<Box<[Completion]>>>,
9252 cx: &mut ViewContext<Editor>,
9253 ) -> Task<Result<bool>> {
9254 self.update(cx, |project, cx| {
9255 project.resolve_completions(completion_indices, completions, cx)
9256 })
9257 }
9258
9259 fn apply_additional_edits_for_completion(
9260 &self,
9261 buffer: Model<Buffer>,
9262 completion: Completion,
9263 push_to_history: bool,
9264 cx: &mut ViewContext<Editor>,
9265 ) -> Task<Result<Option<language::Transaction>>> {
9266 self.update(cx, |project, cx| {
9267 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9268 })
9269 }
9270}
9271
9272fn inlay_hint_settings(
9273 location: Anchor,
9274 snapshot: &MultiBufferSnapshot,
9275 cx: &mut ViewContext<'_, Editor>,
9276) -> InlayHintSettings {
9277 let file = snapshot.file_at(location);
9278 let language = snapshot.language_at(location);
9279 let settings = all_language_settings(file, cx);
9280 settings
9281 .language(language.map(|l| l.name()).as_deref())
9282 .inlay_hints
9283}
9284
9285fn consume_contiguous_rows(
9286 contiguous_row_selections: &mut Vec<Selection<Point>>,
9287 selection: &Selection<Point>,
9288 display_map: &DisplaySnapshot,
9289 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9290) -> (u32, u32) {
9291 contiguous_row_selections.push(selection.clone());
9292 let start_row = selection.start.row;
9293 let mut end_row = ending_row(selection, display_map);
9294
9295 while let Some(next_selection) = selections.peek() {
9296 if next_selection.start.row <= end_row {
9297 end_row = ending_row(next_selection, display_map);
9298 contiguous_row_selections.push(selections.next().unwrap().clone());
9299 } else {
9300 break;
9301 }
9302 }
9303 (start_row, end_row)
9304}
9305
9306fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9307 if next_selection.end.column > 0 || next_selection.is_empty() {
9308 display_map.next_line_boundary(next_selection.end).0.row + 1
9309 } else {
9310 next_selection.end.row
9311 }
9312}
9313
9314impl EditorSnapshot {
9315 pub fn remote_selections_in_range<'a>(
9316 &'a self,
9317 range: &'a Range<Anchor>,
9318 collaboration_hub: &dyn CollaborationHub,
9319 cx: &'a AppContext,
9320 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9321 let participant_names = collaboration_hub.user_names(cx);
9322 let participant_indices = collaboration_hub.user_participant_indices(cx);
9323 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9324 let collaborators_by_replica_id = collaborators_by_peer_id
9325 .iter()
9326 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9327 .collect::<HashMap<_, _>>();
9328 self.buffer_snapshot
9329 .remote_selections_in_range(range)
9330 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9331 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9332 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9333 let user_name = participant_names.get(&collaborator.user_id).cloned();
9334 Some(RemoteSelection {
9335 replica_id,
9336 selection,
9337 cursor_shape,
9338 line_mode,
9339 participant_index,
9340 peer_id: collaborator.peer_id,
9341 user_name,
9342 })
9343 })
9344 }
9345
9346 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9347 self.display_snapshot.buffer_snapshot.language_at(position)
9348 }
9349
9350 pub fn is_focused(&self) -> bool {
9351 self.is_focused
9352 }
9353
9354 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9355 self.placeholder_text.as_ref()
9356 }
9357
9358 pub fn scroll_position(&self) -> gpui::Point<f32> {
9359 self.scroll_anchor.scroll_position(&self.display_snapshot)
9360 }
9361
9362 pub fn gutter_dimensions(
9363 &self,
9364 font_id: FontId,
9365 font_size: Pixels,
9366 em_width: Pixels,
9367 max_line_number_width: Pixels,
9368 cx: &AppContext,
9369 ) -> GutterDimensions {
9370 if self.show_gutter {
9371 let descent = cx.text_system().descent(font_id, font_size);
9372 let gutter_padding_factor = 4.0;
9373 let gutter_padding = (em_width * gutter_padding_factor).round();
9374 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9375 let min_width_for_number_on_gutter = em_width * 4.0;
9376 let gutter_width =
9377 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9378 let gutter_margin = -descent;
9379
9380 GutterDimensions {
9381 padding: gutter_padding,
9382 width: gutter_width,
9383 margin: gutter_margin,
9384 }
9385 } else {
9386 GutterDimensions::default()
9387 }
9388 }
9389}
9390
9391impl Deref for EditorSnapshot {
9392 type Target = DisplaySnapshot;
9393
9394 fn deref(&self) -> &Self::Target {
9395 &self.display_snapshot
9396 }
9397}
9398
9399#[derive(Clone, Debug, PartialEq, Eq)]
9400pub enum EditorEvent {
9401 InputIgnored {
9402 text: Arc<str>,
9403 },
9404 InputHandled {
9405 utf16_range_to_replace: Option<Range<isize>>,
9406 text: Arc<str>,
9407 },
9408 ExcerptsAdded {
9409 buffer: Model<Buffer>,
9410 predecessor: ExcerptId,
9411 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9412 },
9413 ExcerptsRemoved {
9414 ids: Vec<ExcerptId>,
9415 },
9416 BufferEdited,
9417 Edited,
9418 Reparsed,
9419 Focused,
9420 Blurred,
9421 DirtyChanged,
9422 Saved,
9423 TitleChanged,
9424 DiffBaseChanged,
9425 SelectionsChanged {
9426 local: bool,
9427 },
9428 ScrollPositionChanged {
9429 local: bool,
9430 autoscroll: bool,
9431 },
9432 Closed,
9433}
9434
9435impl EventEmitter<EditorEvent> for Editor {}
9436
9437impl FocusableView for Editor {
9438 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9439 self.focus_handle.clone()
9440 }
9441}
9442
9443impl Render for Editor {
9444 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9445 let settings = ThemeSettings::get_global(cx);
9446 let text_style = match self.mode {
9447 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9448 color: cx.theme().colors().editor_foreground,
9449 font_family: settings.ui_font.family.clone(),
9450 font_features: settings.ui_font.features,
9451 font_size: rems(0.875).into(),
9452 font_weight: FontWeight::NORMAL,
9453 font_style: FontStyle::Normal,
9454 line_height: relative(settings.buffer_line_height.value()),
9455 background_color: None,
9456 underline: None,
9457 white_space: WhiteSpace::Normal,
9458 },
9459
9460 EditorMode::Full => TextStyle {
9461 color: cx.theme().colors().editor_foreground,
9462 font_family: settings.buffer_font.family.clone(),
9463 font_features: settings.buffer_font.features,
9464 font_size: settings.buffer_font_size(cx).into(),
9465 font_weight: FontWeight::NORMAL,
9466 font_style: FontStyle::Normal,
9467 line_height: relative(settings.buffer_line_height.value()),
9468 background_color: None,
9469 underline: None,
9470 white_space: WhiteSpace::Normal,
9471 },
9472 };
9473
9474 let background = match self.mode {
9475 EditorMode::SingleLine => cx.theme().system().transparent,
9476 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9477 EditorMode::Full => cx.theme().colors().editor_background,
9478 };
9479
9480 EditorElement::new(
9481 cx.view(),
9482 EditorStyle {
9483 background,
9484 local_player: cx.theme().players().local(),
9485 text: text_style,
9486 scrollbar_width: px(12.),
9487 syntax: cx.theme().syntax().clone(),
9488 status: cx.theme().status().clone(),
9489 inlays_style: HighlightStyle {
9490 color: Some(cx.theme().status().hint),
9491 font_weight: Some(FontWeight::BOLD),
9492 ..HighlightStyle::default()
9493 },
9494 suggestions_style: HighlightStyle {
9495 color: Some(cx.theme().status().predictive),
9496 ..HighlightStyle::default()
9497 },
9498 },
9499 )
9500 }
9501}
9502
9503impl ViewInputHandler for Editor {
9504 fn text_for_range(
9505 &mut self,
9506 range_utf16: Range<usize>,
9507 cx: &mut ViewContext<Self>,
9508 ) -> Option<String> {
9509 Some(
9510 self.buffer
9511 .read(cx)
9512 .read(cx)
9513 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9514 .collect(),
9515 )
9516 }
9517
9518 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9519 // Prevent the IME menu from appearing when holding down an alphabetic key
9520 // while input is disabled.
9521 if !self.input_enabled {
9522 return None;
9523 }
9524
9525 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9526 Some(range.start.0..range.end.0)
9527 }
9528
9529 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9530 let snapshot = self.buffer.read(cx).read(cx);
9531 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9532 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9533 }
9534
9535 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9536 self.clear_highlights::<InputComposition>(cx);
9537 self.ime_transaction.take();
9538 }
9539
9540 fn replace_text_in_range(
9541 &mut self,
9542 range_utf16: Option<Range<usize>>,
9543 text: &str,
9544 cx: &mut ViewContext<Self>,
9545 ) {
9546 if !self.input_enabled {
9547 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9548 return;
9549 }
9550
9551 self.transact(cx, |this, cx| {
9552 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9553 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9554 Some(this.selection_replacement_ranges(range_utf16, cx))
9555 } else {
9556 this.marked_text_ranges(cx)
9557 };
9558
9559 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9560 let newest_selection_id = this.selections.newest_anchor().id;
9561 this.selections
9562 .all::<OffsetUtf16>(cx)
9563 .iter()
9564 .zip(ranges_to_replace.iter())
9565 .find_map(|(selection, range)| {
9566 if selection.id == newest_selection_id {
9567 Some(
9568 (range.start.0 as isize - selection.head().0 as isize)
9569 ..(range.end.0 as isize - selection.head().0 as isize),
9570 )
9571 } else {
9572 None
9573 }
9574 })
9575 });
9576
9577 cx.emit(EditorEvent::InputHandled {
9578 utf16_range_to_replace: range_to_replace,
9579 text: text.into(),
9580 });
9581
9582 if let Some(new_selected_ranges) = new_selected_ranges {
9583 this.change_selections(None, cx, |selections| {
9584 selections.select_ranges(new_selected_ranges)
9585 });
9586 }
9587
9588 this.handle_input(text, cx);
9589 });
9590
9591 if let Some(transaction) = self.ime_transaction {
9592 self.buffer.update(cx, |buffer, cx| {
9593 buffer.group_until_transaction(transaction, cx);
9594 });
9595 }
9596
9597 self.unmark_text(cx);
9598 }
9599
9600 fn replace_and_mark_text_in_range(
9601 &mut self,
9602 range_utf16: Option<Range<usize>>,
9603 text: &str,
9604 new_selected_range_utf16: Option<Range<usize>>,
9605 cx: &mut ViewContext<Self>,
9606 ) {
9607 if !self.input_enabled {
9608 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9609 return;
9610 }
9611
9612 let transaction = self.transact(cx, |this, cx| {
9613 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9614 let snapshot = this.buffer.read(cx).read(cx);
9615 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9616 for marked_range in &mut marked_ranges {
9617 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9618 marked_range.start.0 += relative_range_utf16.start;
9619 marked_range.start =
9620 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9621 marked_range.end =
9622 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9623 }
9624 }
9625 Some(marked_ranges)
9626 } else if let Some(range_utf16) = range_utf16 {
9627 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9628 Some(this.selection_replacement_ranges(range_utf16, cx))
9629 } else {
9630 None
9631 };
9632
9633 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9634 let newest_selection_id = this.selections.newest_anchor().id;
9635 this.selections
9636 .all::<OffsetUtf16>(cx)
9637 .iter()
9638 .zip(ranges_to_replace.iter())
9639 .find_map(|(selection, range)| {
9640 if selection.id == newest_selection_id {
9641 Some(
9642 (range.start.0 as isize - selection.head().0 as isize)
9643 ..(range.end.0 as isize - selection.head().0 as isize),
9644 )
9645 } else {
9646 None
9647 }
9648 })
9649 });
9650
9651 cx.emit(EditorEvent::InputHandled {
9652 utf16_range_to_replace: range_to_replace,
9653 text: text.into(),
9654 });
9655
9656 if let Some(ranges) = ranges_to_replace {
9657 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9658 }
9659
9660 let marked_ranges = {
9661 let snapshot = this.buffer.read(cx).read(cx);
9662 this.selections
9663 .disjoint_anchors()
9664 .iter()
9665 .map(|selection| {
9666 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9667 })
9668 .collect::<Vec<_>>()
9669 };
9670
9671 if text.is_empty() {
9672 this.unmark_text(cx);
9673 } else {
9674 this.highlight_text::<InputComposition>(
9675 marked_ranges.clone(),
9676 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9677 cx,
9678 );
9679 }
9680
9681 this.handle_input(text, cx);
9682
9683 if let Some(new_selected_range) = new_selected_range_utf16 {
9684 let snapshot = this.buffer.read(cx).read(cx);
9685 let new_selected_ranges = marked_ranges
9686 .into_iter()
9687 .map(|marked_range| {
9688 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9689 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9690 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9691 snapshot.clip_offset_utf16(new_start, Bias::Left)
9692 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9693 })
9694 .collect::<Vec<_>>();
9695
9696 drop(snapshot);
9697 this.change_selections(None, cx, |selections| {
9698 selections.select_ranges(new_selected_ranges)
9699 });
9700 }
9701 });
9702
9703 self.ime_transaction = self.ime_transaction.or(transaction);
9704 if let Some(transaction) = self.ime_transaction {
9705 self.buffer.update(cx, |buffer, cx| {
9706 buffer.group_until_transaction(transaction, cx);
9707 });
9708 }
9709
9710 if self.text_highlights::<InputComposition>(cx).is_none() {
9711 self.ime_transaction.take();
9712 }
9713 }
9714
9715 fn bounds_for_range(
9716 &mut self,
9717 range_utf16: Range<usize>,
9718 element_bounds: gpui::Bounds<Pixels>,
9719 cx: &mut ViewContext<Self>,
9720 ) -> Option<gpui::Bounds<Pixels>> {
9721 let text_layout_details = self.text_layout_details(cx);
9722 let style = &text_layout_details.editor_style;
9723 let font_id = cx.text_system().resolve_font(&style.text.font());
9724 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9725 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9726 let em_width = cx
9727 .text_system()
9728 .typographic_bounds(font_id, font_size, 'm')
9729 .unwrap()
9730 .size
9731 .width;
9732
9733 let snapshot = self.snapshot(cx);
9734 let scroll_position = snapshot.scroll_position();
9735 let scroll_left = scroll_position.x * em_width;
9736
9737 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9738 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9739 + self.gutter_width;
9740 let y = line_height * (start.row() as f32 - scroll_position.y);
9741
9742 Some(Bounds {
9743 origin: element_bounds.origin + point(x, y),
9744 size: size(em_width, line_height),
9745 })
9746 }
9747}
9748
9749trait SelectionExt {
9750 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9751 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9752 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9753 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9754 -> Range<u32>;
9755}
9756
9757impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9758 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9759 let start = self.start.to_point(buffer);
9760 let end = self.end.to_point(buffer);
9761 if self.reversed {
9762 end..start
9763 } else {
9764 start..end
9765 }
9766 }
9767
9768 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9769 let start = self.start.to_offset(buffer);
9770 let end = self.end.to_offset(buffer);
9771 if self.reversed {
9772 end..start
9773 } else {
9774 start..end
9775 }
9776 }
9777
9778 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9779 let start = self
9780 .start
9781 .to_point(&map.buffer_snapshot)
9782 .to_display_point(map);
9783 let end = self
9784 .end
9785 .to_point(&map.buffer_snapshot)
9786 .to_display_point(map);
9787 if self.reversed {
9788 end..start
9789 } else {
9790 start..end
9791 }
9792 }
9793
9794 fn spanned_rows(
9795 &self,
9796 include_end_if_at_line_start: bool,
9797 map: &DisplaySnapshot,
9798 ) -> Range<u32> {
9799 let start = self.start.to_point(&map.buffer_snapshot);
9800 let mut end = self.end.to_point(&map.buffer_snapshot);
9801 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9802 end.row -= 1;
9803 }
9804
9805 let buffer_start = map.prev_line_boundary(start).0;
9806 let buffer_end = map.next_line_boundary(end).0;
9807 buffer_start.row..buffer_end.row + 1
9808 }
9809}
9810
9811impl<T: InvalidationRegion> InvalidationStack<T> {
9812 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9813 where
9814 S: Clone + ToOffset,
9815 {
9816 while let Some(region) = self.last() {
9817 let all_selections_inside_invalidation_ranges =
9818 if selections.len() == region.ranges().len() {
9819 selections
9820 .iter()
9821 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9822 .all(|(selection, invalidation_range)| {
9823 let head = selection.head().to_offset(buffer);
9824 invalidation_range.start <= head && invalidation_range.end >= head
9825 })
9826 } else {
9827 false
9828 };
9829
9830 if all_selections_inside_invalidation_ranges {
9831 break;
9832 } else {
9833 self.pop();
9834 }
9835 }
9836 }
9837}
9838
9839impl<T> Default for InvalidationStack<T> {
9840 fn default() -> Self {
9841 Self(Default::default())
9842 }
9843}
9844
9845impl<T> Deref for InvalidationStack<T> {
9846 type Target = Vec<T>;
9847
9848 fn deref(&self) -> &Self::Target {
9849 &self.0
9850 }
9851}
9852
9853impl<T> DerefMut for InvalidationStack<T> {
9854 fn deref_mut(&mut self) -> &mut Self::Target {
9855 &mut self.0
9856 }
9857}
9858
9859impl InvalidationRegion for SnippetState {
9860 fn ranges(&self) -> &[Range<Anchor>] {
9861 &self.ranges[self.active_index]
9862 }
9863}
9864
9865pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9866 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9867
9868 Arc::new(move |cx: &mut BlockContext| {
9869 let group_id: SharedString = cx.block_id.to_string().into();
9870
9871 let mut text_style = cx.text_style().clone();
9872 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
9873
9874 h_flex()
9875 .id(cx.block_id)
9876 .group(group_id.clone())
9877 .relative()
9878 .size_full()
9879 .pl(cx.gutter_width)
9880 .w(cx.max_width + cx.gutter_width)
9881 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
9882 .child(div().flex().flex_shrink_0().child(
9883 StyledText::new(text_without_backticks.clone()).with_highlights(
9884 &text_style,
9885 code_ranges.iter().map(|range| {
9886 (
9887 range.clone(),
9888 HighlightStyle {
9889 font_weight: Some(FontWeight::BOLD),
9890 ..Default::default()
9891 },
9892 )
9893 }),
9894 ),
9895 ))
9896 .child(
9897 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9898 .icon_color(Color::Muted)
9899 .size(ButtonSize::Compact)
9900 .style(ButtonStyle::Transparent)
9901 .visible_on_hover(group_id)
9902 .on_click({
9903 let message = diagnostic.message.clone();
9904 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9905 })
9906 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9907 )
9908 .into_any_element()
9909 })
9910}
9911
9912pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9913 let mut text_without_backticks = String::new();
9914 let mut code_ranges = Vec::new();
9915
9916 if let Some(source) = &diagnostic.source {
9917 text_without_backticks.push_str(&source);
9918 code_ranges.push(0..source.len());
9919 text_without_backticks.push_str(": ");
9920 }
9921
9922 let mut prev_offset = 0;
9923 let mut in_code_block = false;
9924 for (ix, _) in diagnostic
9925 .message
9926 .match_indices('`')
9927 .chain([(diagnostic.message.len(), "")])
9928 {
9929 let prev_len = text_without_backticks.len();
9930 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9931 prev_offset = ix + 1;
9932 if in_code_block {
9933 code_ranges.push(prev_len..text_without_backticks.len());
9934 in_code_block = false;
9935 } else {
9936 in_code_block = true;
9937 }
9938 }
9939
9940 (text_without_backticks.into(), code_ranges)
9941}
9942
9943fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9944 match (severity, valid) {
9945 (DiagnosticSeverity::ERROR, true) => colors.error,
9946 (DiagnosticSeverity::ERROR, false) => colors.error,
9947 (DiagnosticSeverity::WARNING, true) => colors.warning,
9948 (DiagnosticSeverity::WARNING, false) => colors.warning,
9949 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9950 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9951 (DiagnosticSeverity::HINT, true) => colors.info,
9952 (DiagnosticSeverity::HINT, false) => colors.info,
9953 _ => colors.ignored,
9954 }
9955}
9956
9957pub fn styled_runs_for_code_label<'a>(
9958 label: &'a CodeLabel,
9959 syntax_theme: &'a theme::SyntaxTheme,
9960) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9961 let fade_out = HighlightStyle {
9962 fade_out: Some(0.35),
9963 ..Default::default()
9964 };
9965
9966 let mut prev_end = label.filter_range.end;
9967 label
9968 .runs
9969 .iter()
9970 .enumerate()
9971 .flat_map(move |(ix, (range, highlight_id))| {
9972 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9973 style
9974 } else {
9975 return Default::default();
9976 };
9977 let mut muted_style = style;
9978 muted_style.highlight(fade_out);
9979
9980 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9981 if range.start >= label.filter_range.end {
9982 if range.start > prev_end {
9983 runs.push((prev_end..range.start, fade_out));
9984 }
9985 runs.push((range.clone(), muted_style));
9986 } else if range.end <= label.filter_range.end {
9987 runs.push((range.clone(), style));
9988 } else {
9989 runs.push((range.start..label.filter_range.end, style));
9990 runs.push((label.filter_range.end..range.end, muted_style));
9991 }
9992 prev_end = cmp::max(prev_end, range.end);
9993
9994 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9995 runs.push((prev_end..label.text.len(), fade_out));
9996 }
9997
9998 runs
9999 })
10000}
10001
10002pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10003 let mut index = 0;
10004 let mut codepoints = text.char_indices().peekable();
10005
10006 std::iter::from_fn(move || {
10007 let start_index = index;
10008 while let Some((new_index, codepoint)) = codepoints.next() {
10009 index = new_index + codepoint.len_utf8();
10010 let current_upper = codepoint.is_uppercase();
10011 let next_upper = codepoints
10012 .peek()
10013 .map(|(_, c)| c.is_uppercase())
10014 .unwrap_or(false);
10015
10016 if !current_upper && next_upper {
10017 return Some(&text[start_index..index]);
10018 }
10019 }
10020
10021 index = text.len();
10022 if start_index < text.len() {
10023 return Some(&text[start_index..]);
10024 }
10025 None
10026 })
10027 .flat_map(|word| word.split_inclusive('_'))
10028 .flat_map(|word| word.split_inclusive('-'))
10029}
10030
10031trait RangeToAnchorExt {
10032 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10033}
10034
10035impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10036 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10037 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10038 }
10039}