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(cx),
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 scroll_anchor: self.scroll_manager.anchor(),
3090 visible_rows: self.visible_line_count(),
3091 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3092 }
3093 }
3094
3095 fn splice_inlay_hints(
3096 &self,
3097 to_remove: Vec<InlayId>,
3098 to_insert: Vec<Inlay>,
3099 cx: &mut ViewContext<Self>,
3100 ) {
3101 self.display_map.update(cx, |display_map, cx| {
3102 display_map.splice_inlays(to_remove, to_insert, cx);
3103 });
3104 cx.notify();
3105 }
3106
3107 fn trigger_on_type_formatting(
3108 &self,
3109 input: String,
3110 cx: &mut ViewContext<Self>,
3111 ) -> Option<Task<Result<()>>> {
3112 if input.len() != 1 {
3113 return None;
3114 }
3115
3116 let project = self.project.as_ref()?;
3117 let position = self.selections.newest_anchor().head();
3118 let (buffer, buffer_position) = self
3119 .buffer
3120 .read(cx)
3121 .text_anchor_for_position(position.clone(), cx)?;
3122
3123 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3124 // hence we do LSP request & edit on host side only — add formats to host's history.
3125 let push_to_lsp_host_history = true;
3126 // If this is not the host, append its history with new edits.
3127 let push_to_client_history = project.read(cx).is_remote();
3128
3129 let on_type_formatting = project.update(cx, |project, cx| {
3130 project.on_type_format(
3131 buffer.clone(),
3132 buffer_position,
3133 input,
3134 push_to_lsp_host_history,
3135 cx,
3136 )
3137 });
3138 Some(cx.spawn(|editor, mut cx| async move {
3139 if let Some(transaction) = on_type_formatting.await? {
3140 if push_to_client_history {
3141 buffer
3142 .update(&mut cx, |buffer, _| {
3143 buffer.push_transaction(transaction, Instant::now());
3144 })
3145 .ok();
3146 }
3147 editor.update(&mut cx, |editor, cx| {
3148 editor.refresh_document_highlights(cx);
3149 })?;
3150 }
3151 Ok(())
3152 }))
3153 }
3154
3155 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3156 if self.pending_rename.is_some() {
3157 return;
3158 }
3159
3160 let Some(provider) = self.completion_provider.as_ref() else {
3161 return;
3162 };
3163
3164 let position = self.selections.newest_anchor().head();
3165 let (buffer, buffer_position) = if let Some(output) = self
3166 .buffer
3167 .read(cx)
3168 .text_anchor_for_position(position.clone(), cx)
3169 {
3170 output
3171 } else {
3172 return;
3173 };
3174
3175 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3176 let completions = provider.completions(&buffer, buffer_position, cx);
3177
3178 let id = post_inc(&mut self.next_completion_id);
3179 let task = cx.spawn(|this, mut cx| {
3180 async move {
3181 let completions = completions.await.log_err();
3182 let menu = if let Some(completions) = completions {
3183 let mut menu = CompletionsMenu {
3184 id,
3185 initial_position: position,
3186 match_candidates: completions
3187 .iter()
3188 .enumerate()
3189 .map(|(id, completion)| {
3190 StringMatchCandidate::new(
3191 id,
3192 completion.label.text[completion.label.filter_range.clone()]
3193 .into(),
3194 )
3195 })
3196 .collect(),
3197 buffer,
3198 completions: Arc::new(RwLock::new(completions.into())),
3199 matches: Vec::new().into(),
3200 selected_item: 0,
3201 scroll_handle: UniformListScrollHandle::new(),
3202 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3203 DebouncedDelay::new(),
3204 )),
3205 };
3206 menu.filter(query.as_deref(), cx.background_executor().clone())
3207 .await;
3208
3209 if menu.matches.is_empty() {
3210 None
3211 } else {
3212 this.update(&mut cx, |editor, cx| {
3213 let completions = menu.completions.clone();
3214 let matches = menu.matches.clone();
3215
3216 let delay_ms = EditorSettings::get_global(cx)
3217 .completion_documentation_secondary_query_debounce;
3218 let delay = Duration::from_millis(delay_ms);
3219
3220 editor
3221 .completion_documentation_pre_resolve_debounce
3222 .fire_new(delay, cx, |editor, cx| {
3223 CompletionsMenu::pre_resolve_completion_documentation(
3224 completions,
3225 matches,
3226 editor,
3227 cx,
3228 )
3229 });
3230 })
3231 .ok();
3232 Some(menu)
3233 }
3234 } else {
3235 None
3236 };
3237
3238 this.update(&mut cx, |this, cx| {
3239 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3240
3241 let mut context_menu = this.context_menu.write();
3242 match context_menu.as_ref() {
3243 None => {}
3244
3245 Some(ContextMenu::Completions(prev_menu)) => {
3246 if prev_menu.id > id {
3247 return;
3248 }
3249 }
3250
3251 _ => return,
3252 }
3253
3254 if this.focus_handle.is_focused(cx) && menu.is_some() {
3255 let menu = menu.unwrap();
3256 *context_menu = Some(ContextMenu::Completions(menu));
3257 drop(context_menu);
3258 this.discard_copilot_suggestion(cx);
3259 cx.notify();
3260 } else if this.completion_tasks.len() <= 1 {
3261 // If there are no more completion tasks and the last menu was
3262 // empty, we should hide it. If it was already hidden, we should
3263 // also show the copilot suggestion when available.
3264 drop(context_menu);
3265 if this.hide_context_menu(cx).is_none() {
3266 this.update_visible_copilot_suggestion(cx);
3267 }
3268 }
3269 })?;
3270
3271 Ok::<_, anyhow::Error>(())
3272 }
3273 .log_err()
3274 });
3275
3276 self.completion_tasks.push((id, task));
3277 }
3278
3279 pub fn confirm_completion(
3280 &mut self,
3281 action: &ConfirmCompletion,
3282 cx: &mut ViewContext<Self>,
3283 ) -> Option<Task<Result<()>>> {
3284 use language::ToOffset as _;
3285
3286 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3287 menu
3288 } else {
3289 return None;
3290 };
3291
3292 let mat = completions_menu
3293 .matches
3294 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3295 let buffer_handle = completions_menu.buffer;
3296 let completions = completions_menu.completions.read();
3297 let completion = completions.get(mat.candidate_id)?;
3298 cx.stop_propagation();
3299
3300 let snippet;
3301 let text;
3302 if completion.is_snippet() {
3303 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3304 text = snippet.as_ref().unwrap().text.clone();
3305 } else {
3306 snippet = None;
3307 text = completion.new_text.clone();
3308 };
3309 let selections = self.selections.all::<usize>(cx);
3310 let buffer = buffer_handle.read(cx);
3311 let old_range = completion.old_range.to_offset(buffer);
3312 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3313
3314 let newest_selection = self.selections.newest_anchor();
3315 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3316 return None;
3317 }
3318
3319 let lookbehind = newest_selection
3320 .start
3321 .text_anchor
3322 .to_offset(buffer)
3323 .saturating_sub(old_range.start);
3324 let lookahead = old_range
3325 .end
3326 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3327 let mut common_prefix_len = old_text
3328 .bytes()
3329 .zip(text.bytes())
3330 .take_while(|(a, b)| a == b)
3331 .count();
3332
3333 let snapshot = self.buffer.read(cx).snapshot(cx);
3334 let mut range_to_replace: Option<Range<isize>> = None;
3335 let mut ranges = Vec::new();
3336 for selection in &selections {
3337 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3338 let start = selection.start.saturating_sub(lookbehind);
3339 let end = selection.end + lookahead;
3340 if selection.id == newest_selection.id {
3341 range_to_replace = Some(
3342 ((start + common_prefix_len) as isize - selection.start as isize)
3343 ..(end as isize - selection.start as isize),
3344 );
3345 }
3346 ranges.push(start + common_prefix_len..end);
3347 } else {
3348 common_prefix_len = 0;
3349 ranges.clear();
3350 ranges.extend(selections.iter().map(|s| {
3351 if s.id == newest_selection.id {
3352 range_to_replace = Some(
3353 old_range.start.to_offset_utf16(&snapshot).0 as isize
3354 - selection.start as isize
3355 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3356 - selection.start as isize,
3357 );
3358 old_range.clone()
3359 } else {
3360 s.start..s.end
3361 }
3362 }));
3363 break;
3364 }
3365 }
3366 let text = &text[common_prefix_len..];
3367
3368 cx.emit(EditorEvent::InputHandled {
3369 utf16_range_to_replace: range_to_replace,
3370 text: text.into(),
3371 });
3372
3373 self.transact(cx, |this, cx| {
3374 if let Some(mut snippet) = snippet {
3375 snippet.text = text.to_string();
3376 for tabstop in snippet.tabstops.iter_mut().flatten() {
3377 tabstop.start -= common_prefix_len as isize;
3378 tabstop.end -= common_prefix_len as isize;
3379 }
3380
3381 this.insert_snippet(&ranges, snippet, cx).log_err();
3382 } else {
3383 this.buffer.update(cx, |buffer, cx| {
3384 buffer.edit(
3385 ranges.iter().map(|range| (range.clone(), text)),
3386 this.autoindent_mode.clone(),
3387 cx,
3388 );
3389 });
3390 }
3391
3392 this.refresh_copilot_suggestions(true, cx);
3393 });
3394
3395 let provider = self.completion_provider.as_ref()?;
3396 let apply_edits = provider.apply_additional_edits_for_completion(
3397 buffer_handle,
3398 completion.clone(),
3399 true,
3400 cx,
3401 );
3402 Some(cx.foreground_executor().spawn(async move {
3403 apply_edits.await?;
3404 Ok(())
3405 }))
3406 }
3407
3408 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3409 let mut context_menu = self.context_menu.write();
3410 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3411 *context_menu = None;
3412 cx.notify();
3413 return;
3414 }
3415 drop(context_menu);
3416
3417 let deployed_from_indicator = action.deployed_from_indicator;
3418 let mut task = self.code_actions_task.take();
3419 cx.spawn(|this, mut cx| async move {
3420 while let Some(prev_task) = task {
3421 prev_task.await;
3422 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3423 }
3424
3425 this.update(&mut cx, |this, cx| {
3426 if this.focus_handle.is_focused(cx) {
3427 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3428 this.completion_tasks.clear();
3429 this.discard_copilot_suggestion(cx);
3430 *this.context_menu.write() =
3431 Some(ContextMenu::CodeActions(CodeActionsMenu {
3432 buffer,
3433 actions,
3434 selected_item: Default::default(),
3435 scroll_handle: UniformListScrollHandle::default(),
3436 deployed_from_indicator,
3437 }));
3438 cx.notify();
3439 }
3440 }
3441 })?;
3442
3443 Ok::<_, anyhow::Error>(())
3444 })
3445 .detach_and_log_err(cx);
3446 }
3447
3448 pub fn confirm_code_action(
3449 &mut self,
3450 action: &ConfirmCodeAction,
3451 cx: &mut ViewContext<Self>,
3452 ) -> Option<Task<Result<()>>> {
3453 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3454 menu
3455 } else {
3456 return None;
3457 };
3458 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3459 let action = actions_menu.actions.get(action_ix)?.clone();
3460 let title = action.lsp_action.title.clone();
3461 let buffer = actions_menu.buffer;
3462 let workspace = self.workspace()?;
3463
3464 let apply_code_actions = workspace
3465 .read(cx)
3466 .project()
3467 .clone()
3468 .update(cx, |project, cx| {
3469 project.apply_code_action(buffer, action, true, cx)
3470 });
3471 let workspace = workspace.downgrade();
3472 Some(cx.spawn(|editor, cx| async move {
3473 let project_transaction = apply_code_actions.await?;
3474 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3475 }))
3476 }
3477
3478 async fn open_project_transaction(
3479 this: &WeakView<Editor>,
3480 workspace: WeakView<Workspace>,
3481 transaction: ProjectTransaction,
3482 title: String,
3483 mut cx: AsyncWindowContext,
3484 ) -> Result<()> {
3485 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3486
3487 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3488 cx.update(|cx| {
3489 entries.sort_unstable_by_key(|(buffer, _)| {
3490 buffer.read(cx).file().map(|f| f.path().clone())
3491 });
3492 })?;
3493
3494 // If the project transaction's edits are all contained within this editor, then
3495 // avoid opening a new editor to display them.
3496
3497 if let Some((buffer, transaction)) = entries.first() {
3498 if entries.len() == 1 {
3499 let excerpt = this.update(&mut cx, |editor, cx| {
3500 editor
3501 .buffer()
3502 .read(cx)
3503 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3504 })?;
3505 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3506 if excerpted_buffer == *buffer {
3507 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3508 let excerpt_range = excerpt_range.to_offset(buffer);
3509 buffer
3510 .edited_ranges_for_transaction::<usize>(transaction)
3511 .all(|range| {
3512 excerpt_range.start <= range.start
3513 && excerpt_range.end >= range.end
3514 })
3515 })?;
3516
3517 if all_edits_within_excerpt {
3518 return Ok(());
3519 }
3520 }
3521 }
3522 }
3523 } else {
3524 return Ok(());
3525 }
3526
3527 let mut ranges_to_highlight = Vec::new();
3528 let excerpt_buffer = cx.new_model(|cx| {
3529 let mut multibuffer =
3530 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3531 for (buffer_handle, transaction) in &entries {
3532 let buffer = buffer_handle.read(cx);
3533 ranges_to_highlight.extend(
3534 multibuffer.push_excerpts_with_context_lines(
3535 buffer_handle.clone(),
3536 buffer
3537 .edited_ranges_for_transaction::<usize>(transaction)
3538 .collect(),
3539 1,
3540 cx,
3541 ),
3542 );
3543 }
3544 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3545 multibuffer
3546 })?;
3547
3548 workspace.update(&mut cx, |workspace, cx| {
3549 let project = workspace.project().clone();
3550 let editor =
3551 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3552 workspace.add_item(Box::new(editor.clone()), cx);
3553 editor.update(cx, |editor, cx| {
3554 editor.highlight_background::<Self>(
3555 ranges_to_highlight,
3556 |theme| theme.editor_highlighted_line_background,
3557 cx,
3558 );
3559 });
3560 })?;
3561
3562 Ok(())
3563 }
3564
3565 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3566 let project = self.project.clone()?;
3567 let buffer = self.buffer.read(cx);
3568 let newest_selection = self.selections.newest_anchor().clone();
3569 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3570 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3571 if start_buffer != end_buffer {
3572 return None;
3573 }
3574
3575 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3576 cx.background_executor()
3577 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3578 .await;
3579
3580 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3581 project.code_actions(&start_buffer, start..end, cx)
3582 }) {
3583 code_actions.await.log_err()
3584 } else {
3585 None
3586 };
3587
3588 this.update(&mut cx, |this, cx| {
3589 this.available_code_actions = actions.and_then(|actions| {
3590 if actions.is_empty() {
3591 None
3592 } else {
3593 Some((start_buffer, actions.into()))
3594 }
3595 });
3596 cx.notify();
3597 })
3598 .log_err();
3599 }));
3600 None
3601 }
3602
3603 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3604 if self.pending_rename.is_some() {
3605 return None;
3606 }
3607
3608 let project = self.project.clone()?;
3609 let buffer = self.buffer.read(cx);
3610 let newest_selection = self.selections.newest_anchor().clone();
3611 let cursor_position = newest_selection.head();
3612 let (cursor_buffer, cursor_buffer_position) =
3613 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3614 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3615 if cursor_buffer != tail_buffer {
3616 return None;
3617 }
3618
3619 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3620 cx.background_executor()
3621 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3622 .await;
3623
3624 let highlights = if let Some(highlights) = project
3625 .update(&mut cx, |project, cx| {
3626 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3627 })
3628 .log_err()
3629 {
3630 highlights.await.log_err()
3631 } else {
3632 None
3633 };
3634
3635 if let Some(highlights) = highlights {
3636 this.update(&mut cx, |this, cx| {
3637 if this.pending_rename.is_some() {
3638 return;
3639 }
3640
3641 let buffer_id = cursor_position.buffer_id;
3642 let buffer = this.buffer.read(cx);
3643 if !buffer
3644 .text_anchor_for_position(cursor_position, cx)
3645 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3646 {
3647 return;
3648 }
3649
3650 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3651 let mut write_ranges = Vec::new();
3652 let mut read_ranges = Vec::new();
3653 for highlight in highlights {
3654 for (excerpt_id, excerpt_range) in
3655 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3656 {
3657 let start = highlight
3658 .range
3659 .start
3660 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3661 let end = highlight
3662 .range
3663 .end
3664 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3665 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3666 continue;
3667 }
3668
3669 let range = Anchor {
3670 buffer_id,
3671 excerpt_id: excerpt_id.clone(),
3672 text_anchor: start,
3673 }..Anchor {
3674 buffer_id,
3675 excerpt_id,
3676 text_anchor: end,
3677 };
3678 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3679 write_ranges.push(range);
3680 } else {
3681 read_ranges.push(range);
3682 }
3683 }
3684 }
3685
3686 this.highlight_background::<DocumentHighlightRead>(
3687 read_ranges,
3688 |theme| theme.editor_document_highlight_read_background,
3689 cx,
3690 );
3691 this.highlight_background::<DocumentHighlightWrite>(
3692 write_ranges,
3693 |theme| theme.editor_document_highlight_write_background,
3694 cx,
3695 );
3696 cx.notify();
3697 })
3698 .log_err();
3699 }
3700 }));
3701 None
3702 }
3703
3704 fn refresh_copilot_suggestions(
3705 &mut self,
3706 debounce: bool,
3707 cx: &mut ViewContext<Self>,
3708 ) -> Option<()> {
3709 let copilot = Copilot::global(cx)?;
3710 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3711 self.clear_copilot_suggestions(cx);
3712 return None;
3713 }
3714 self.update_visible_copilot_suggestion(cx);
3715
3716 let snapshot = self.buffer.read(cx).snapshot(cx);
3717 let cursor = self.selections.newest_anchor().head();
3718 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3719 self.clear_copilot_suggestions(cx);
3720 return None;
3721 }
3722
3723 let (buffer, buffer_position) =
3724 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3725 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3726 if debounce {
3727 cx.background_executor()
3728 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3729 .await;
3730 }
3731
3732 let completions = copilot
3733 .update(&mut cx, |copilot, cx| {
3734 copilot.completions(&buffer, buffer_position, cx)
3735 })
3736 .log_err()
3737 .unwrap_or(Task::ready(Ok(Vec::new())))
3738 .await
3739 .log_err()
3740 .into_iter()
3741 .flatten()
3742 .collect_vec();
3743
3744 this.update(&mut cx, |this, cx| {
3745 if !completions.is_empty() {
3746 this.copilot_state.cycled = false;
3747 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3748 this.copilot_state.completions.clear();
3749 this.copilot_state.active_completion_index = 0;
3750 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3751 for completion in completions {
3752 this.copilot_state.push_completion(completion);
3753 }
3754 this.update_visible_copilot_suggestion(cx);
3755 }
3756 })
3757 .log_err()?;
3758 Some(())
3759 });
3760
3761 Some(())
3762 }
3763
3764 fn cycle_copilot_suggestions(
3765 &mut self,
3766 direction: Direction,
3767 cx: &mut ViewContext<Self>,
3768 ) -> Option<()> {
3769 let copilot = Copilot::global(cx)?;
3770 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3771 return None;
3772 }
3773
3774 if self.copilot_state.cycled {
3775 self.copilot_state.cycle_completions(direction);
3776 self.update_visible_copilot_suggestion(cx);
3777 } else {
3778 let cursor = self.selections.newest_anchor().head();
3779 let (buffer, buffer_position) =
3780 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3781 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3782 let completions = copilot
3783 .update(&mut cx, |copilot, cx| {
3784 copilot.completions_cycling(&buffer, buffer_position, cx)
3785 })
3786 .log_err()?
3787 .await;
3788
3789 this.update(&mut cx, |this, cx| {
3790 this.copilot_state.cycled = true;
3791 for completion in completions.log_err().into_iter().flatten() {
3792 this.copilot_state.push_completion(completion);
3793 }
3794 this.copilot_state.cycle_completions(direction);
3795 this.update_visible_copilot_suggestion(cx);
3796 })
3797 .log_err()?;
3798
3799 Some(())
3800 });
3801 }
3802
3803 Some(())
3804 }
3805
3806 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3807 if !self.has_active_copilot_suggestion(cx) {
3808 self.refresh_copilot_suggestions(false, cx);
3809 return;
3810 }
3811
3812 self.update_visible_copilot_suggestion(cx);
3813 }
3814
3815 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3816 self.show_cursor_names(cx);
3817 }
3818
3819 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3820 self.show_cursor_names = true;
3821 cx.notify();
3822 cx.spawn(|this, mut cx| async move {
3823 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3824 this.update(&mut cx, |this, cx| {
3825 this.show_cursor_names = false;
3826 cx.notify()
3827 })
3828 .ok()
3829 })
3830 .detach();
3831 }
3832
3833 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3834 if self.has_active_copilot_suggestion(cx) {
3835 self.cycle_copilot_suggestions(Direction::Next, cx);
3836 } else {
3837 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3838 if is_copilot_disabled {
3839 cx.propagate();
3840 }
3841 }
3842 }
3843
3844 fn previous_copilot_suggestion(
3845 &mut self,
3846 _: &copilot::PreviousSuggestion,
3847 cx: &mut ViewContext<Self>,
3848 ) {
3849 if self.has_active_copilot_suggestion(cx) {
3850 self.cycle_copilot_suggestions(Direction::Prev, cx);
3851 } else {
3852 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3853 if is_copilot_disabled {
3854 cx.propagate();
3855 }
3856 }
3857 }
3858
3859 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3860 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3861 if let Some((copilot, completion)) =
3862 Copilot::global(cx).zip(self.copilot_state.active_completion())
3863 {
3864 copilot
3865 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3866 .detach_and_log_err(cx);
3867
3868 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3869 }
3870 cx.emit(EditorEvent::InputHandled {
3871 utf16_range_to_replace: None,
3872 text: suggestion.text.to_string().into(),
3873 });
3874 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3875 cx.notify();
3876 true
3877 } else {
3878 false
3879 }
3880 }
3881
3882 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3883 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3884 if let Some(copilot) = Copilot::global(cx) {
3885 copilot
3886 .update(cx, |copilot, cx| {
3887 copilot.discard_completions(&self.copilot_state.completions, cx)
3888 })
3889 .detach_and_log_err(cx);
3890
3891 self.report_copilot_event(None, false, cx)
3892 }
3893
3894 self.display_map.update(cx, |map, cx| {
3895 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3896 });
3897 cx.notify();
3898 true
3899 } else {
3900 false
3901 }
3902 }
3903
3904 fn is_copilot_enabled_at(
3905 &self,
3906 location: Anchor,
3907 snapshot: &MultiBufferSnapshot,
3908 cx: &mut ViewContext<Self>,
3909 ) -> bool {
3910 let file = snapshot.file_at(location);
3911 let language = snapshot.language_at(location);
3912 let settings = all_language_settings(file, cx);
3913 self.show_copilot_suggestions
3914 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3915 }
3916
3917 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3918 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3919 let buffer = self.buffer.read(cx).read(cx);
3920 suggestion.position.is_valid(&buffer)
3921 } else {
3922 false
3923 }
3924 }
3925
3926 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3927 let suggestion = self.copilot_state.suggestion.take()?;
3928 self.display_map.update(cx, |map, cx| {
3929 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3930 });
3931 let buffer = self.buffer.read(cx).read(cx);
3932
3933 if suggestion.position.is_valid(&buffer) {
3934 Some(suggestion)
3935 } else {
3936 None
3937 }
3938 }
3939
3940 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3941 let snapshot = self.buffer.read(cx).snapshot(cx);
3942 let selection = self.selections.newest_anchor();
3943 let cursor = selection.head();
3944
3945 if self.context_menu.read().is_some()
3946 || !self.completion_tasks.is_empty()
3947 || selection.start != selection.end
3948 {
3949 self.discard_copilot_suggestion(cx);
3950 } else if let Some(text) = self
3951 .copilot_state
3952 .text_for_active_completion(cursor, &snapshot)
3953 {
3954 let text = Rope::from(text);
3955 let mut to_remove = Vec::new();
3956 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3957 to_remove.push(suggestion.id);
3958 }
3959
3960 let suggestion_inlay =
3961 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3962 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3963 self.display_map.update(cx, move |map, cx| {
3964 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3965 });
3966 cx.notify();
3967 } else {
3968 self.discard_copilot_suggestion(cx);
3969 }
3970 }
3971
3972 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3973 self.copilot_state = Default::default();
3974 self.discard_copilot_suggestion(cx);
3975 }
3976
3977 pub fn render_code_actions_indicator(
3978 &self,
3979 _style: &EditorStyle,
3980 is_active: bool,
3981 cx: &mut ViewContext<Self>,
3982 ) -> Option<IconButton> {
3983 if self.available_code_actions.is_some() {
3984 Some(
3985 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3986 .icon_size(IconSize::Small)
3987 .icon_color(Color::Muted)
3988 .selected(is_active)
3989 .on_click(cx.listener(|editor, _e, cx| {
3990 editor.toggle_code_actions(
3991 &ToggleCodeActions {
3992 deployed_from_indicator: true,
3993 },
3994 cx,
3995 );
3996 })),
3997 )
3998 } else {
3999 None
4000 }
4001 }
4002
4003 pub fn render_fold_indicators(
4004 &self,
4005 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4006 _style: &EditorStyle,
4007 gutter_hovered: bool,
4008 _line_height: Pixels,
4009 _gutter_margin: Pixels,
4010 editor_view: View<Editor>,
4011 ) -> Vec<Option<IconButton>> {
4012 fold_data
4013 .iter()
4014 .enumerate()
4015 .map(|(ix, fold_data)| {
4016 fold_data
4017 .map(|(fold_status, buffer_row, active)| {
4018 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4019 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4020 .on_click({
4021 let view = editor_view.clone();
4022 move |_e, cx| {
4023 view.update(cx, |editor, cx| match fold_status {
4024 FoldStatus::Folded => {
4025 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4026 }
4027 FoldStatus::Foldable => {
4028 editor.fold_at(&FoldAt { buffer_row }, cx);
4029 }
4030 })
4031 }
4032 })
4033 .icon_color(ui::Color::Muted)
4034 .icon_size(ui::IconSize::Small)
4035 .selected(fold_status == FoldStatus::Folded)
4036 .selected_icon(ui::IconName::ChevronRight)
4037 .size(ui::ButtonSize::None)
4038 })
4039 })
4040 .flatten()
4041 })
4042 .collect()
4043 }
4044
4045 pub fn context_menu_visible(&self) -> bool {
4046 self.context_menu
4047 .read()
4048 .as_ref()
4049 .map_or(false, |menu| menu.visible())
4050 }
4051
4052 pub fn render_context_menu(
4053 &self,
4054 cursor_position: DisplayPoint,
4055 style: &EditorStyle,
4056 max_height: Pixels,
4057 cx: &mut ViewContext<Editor>,
4058 ) -> Option<(DisplayPoint, AnyElement)> {
4059 self.context_menu.read().as_ref().map(|menu| {
4060 menu.render(
4061 cursor_position,
4062 style,
4063 max_height,
4064 self.workspace.as_ref().map(|(w, _)| w.clone()),
4065 cx,
4066 )
4067 })
4068 }
4069
4070 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4071 cx.notify();
4072 self.completion_tasks.clear();
4073 let context_menu = self.context_menu.write().take();
4074 if context_menu.is_some() {
4075 self.update_visible_copilot_suggestion(cx);
4076 }
4077 context_menu
4078 }
4079
4080 pub fn insert_snippet(
4081 &mut self,
4082 insertion_ranges: &[Range<usize>],
4083 snippet: Snippet,
4084 cx: &mut ViewContext<Self>,
4085 ) -> Result<()> {
4086 let tabstops = self.buffer.update(cx, |buffer, cx| {
4087 let snippet_text: Arc<str> = snippet.text.clone().into();
4088 buffer.edit(
4089 insertion_ranges
4090 .iter()
4091 .cloned()
4092 .map(|range| (range, snippet_text.clone())),
4093 Some(AutoindentMode::EachLine),
4094 cx,
4095 );
4096
4097 let snapshot = &*buffer.read(cx);
4098 let snippet = &snippet;
4099 snippet
4100 .tabstops
4101 .iter()
4102 .map(|tabstop| {
4103 let mut tabstop_ranges = tabstop
4104 .iter()
4105 .flat_map(|tabstop_range| {
4106 let mut delta = 0_isize;
4107 insertion_ranges.iter().map(move |insertion_range| {
4108 let insertion_start = insertion_range.start as isize + delta;
4109 delta +=
4110 snippet.text.len() as isize - insertion_range.len() as isize;
4111
4112 let start = snapshot.anchor_before(
4113 (insertion_start + tabstop_range.start) as usize,
4114 );
4115 let end = snapshot
4116 .anchor_after((insertion_start + tabstop_range.end) as usize);
4117 start..end
4118 })
4119 })
4120 .collect::<Vec<_>>();
4121 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4122 tabstop_ranges
4123 })
4124 .collect::<Vec<_>>()
4125 });
4126
4127 if let Some(tabstop) = tabstops.first() {
4128 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4129 s.select_ranges(tabstop.iter().cloned());
4130 });
4131 self.snippet_stack.push(SnippetState {
4132 active_index: 0,
4133 ranges: tabstops,
4134 });
4135 }
4136
4137 Ok(())
4138 }
4139
4140 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4141 self.move_to_snippet_tabstop(Bias::Right, cx)
4142 }
4143
4144 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4145 self.move_to_snippet_tabstop(Bias::Left, cx)
4146 }
4147
4148 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4149 if let Some(mut snippet) = self.snippet_stack.pop() {
4150 match bias {
4151 Bias::Left => {
4152 if snippet.active_index > 0 {
4153 snippet.active_index -= 1;
4154 } else {
4155 self.snippet_stack.push(snippet);
4156 return false;
4157 }
4158 }
4159 Bias::Right => {
4160 if snippet.active_index + 1 < snippet.ranges.len() {
4161 snippet.active_index += 1;
4162 } else {
4163 self.snippet_stack.push(snippet);
4164 return false;
4165 }
4166 }
4167 }
4168 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4169 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4170 s.select_anchor_ranges(current_ranges.iter().cloned())
4171 });
4172 // If snippet state is not at the last tabstop, push it back on the stack
4173 if snippet.active_index + 1 < snippet.ranges.len() {
4174 self.snippet_stack.push(snippet);
4175 }
4176 return true;
4177 }
4178 }
4179
4180 false
4181 }
4182
4183 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4184 self.transact(cx, |this, cx| {
4185 this.select_all(&SelectAll, cx);
4186 this.insert("", cx);
4187 });
4188 }
4189
4190 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4191 self.transact(cx, |this, cx| {
4192 this.select_autoclose_pair(cx);
4193 let mut selections = this.selections.all::<Point>(cx);
4194 if !this.selections.line_mode {
4195 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4196 for selection in &mut selections {
4197 if selection.is_empty() {
4198 let old_head = selection.head();
4199 let mut new_head =
4200 movement::left(&display_map, old_head.to_display_point(&display_map))
4201 .to_point(&display_map);
4202 if let Some((buffer, line_buffer_range)) = display_map
4203 .buffer_snapshot
4204 .buffer_line_for_row(old_head.row)
4205 {
4206 let indent_size =
4207 buffer.indent_size_for_line(line_buffer_range.start.row);
4208 let indent_len = match indent_size.kind {
4209 IndentKind::Space => {
4210 buffer.settings_at(line_buffer_range.start, cx).tab_size
4211 }
4212 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4213 };
4214 if old_head.column <= indent_size.len && old_head.column > 0 {
4215 let indent_len = indent_len.get();
4216 new_head = cmp::min(
4217 new_head,
4218 Point::new(
4219 old_head.row,
4220 ((old_head.column - 1) / indent_len) * indent_len,
4221 ),
4222 );
4223 }
4224 }
4225
4226 selection.set_head(new_head, SelectionGoal::None);
4227 }
4228 }
4229 }
4230
4231 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4232 this.insert("", cx);
4233 this.refresh_copilot_suggestions(true, cx);
4234 });
4235 }
4236
4237 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4238 self.transact(cx, |this, cx| {
4239 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4240 let line_mode = s.line_mode;
4241 s.move_with(|map, selection| {
4242 if selection.is_empty() && !line_mode {
4243 let cursor = movement::right(map, selection.head());
4244 selection.end = cursor;
4245 selection.reversed = true;
4246 selection.goal = SelectionGoal::None;
4247 }
4248 })
4249 });
4250 this.insert("", cx);
4251 this.refresh_copilot_suggestions(true, cx);
4252 });
4253 }
4254
4255 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4256 if self.move_to_prev_snippet_tabstop(cx) {
4257 return;
4258 }
4259
4260 self.outdent(&Outdent, cx);
4261 }
4262
4263 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4264 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4265 return;
4266 }
4267
4268 let mut selections = self.selections.all_adjusted(cx);
4269 let buffer = self.buffer.read(cx);
4270 let snapshot = buffer.snapshot(cx);
4271 let rows_iter = selections.iter().map(|s| s.head().row);
4272 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4273
4274 let mut edits = Vec::new();
4275 let mut prev_edited_row = 0;
4276 let mut row_delta = 0;
4277 for selection in &mut selections {
4278 if selection.start.row != prev_edited_row {
4279 row_delta = 0;
4280 }
4281 prev_edited_row = selection.end.row;
4282
4283 // If the selection is non-empty, then increase the indentation of the selected lines.
4284 if !selection.is_empty() {
4285 row_delta =
4286 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4287 continue;
4288 }
4289
4290 // If the selection is empty and the cursor is in the leading whitespace before the
4291 // suggested indentation, then auto-indent the line.
4292 let cursor = selection.head();
4293 let current_indent = snapshot.indent_size_for_line(cursor.row);
4294 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4295 if cursor.column < suggested_indent.len
4296 && cursor.column <= current_indent.len
4297 && current_indent.len <= suggested_indent.len
4298 {
4299 selection.start = Point::new(cursor.row, suggested_indent.len);
4300 selection.end = selection.start;
4301 if row_delta == 0 {
4302 edits.extend(Buffer::edit_for_indent_size_adjustment(
4303 cursor.row,
4304 current_indent,
4305 suggested_indent,
4306 ));
4307 row_delta = suggested_indent.len - current_indent.len;
4308 }
4309 continue;
4310 }
4311 }
4312
4313 // Accept copilot suggestion if there is only one selection and the cursor is not
4314 // in the leading whitespace.
4315 if self.selections.count() == 1
4316 && cursor.column >= current_indent.len
4317 && self.has_active_copilot_suggestion(cx)
4318 {
4319 self.accept_copilot_suggestion(cx);
4320 return;
4321 }
4322
4323 // Otherwise, insert a hard or soft tab.
4324 let settings = buffer.settings_at(cursor, cx);
4325 let tab_size = if settings.hard_tabs {
4326 IndentSize::tab()
4327 } else {
4328 let tab_size = settings.tab_size.get();
4329 let char_column = snapshot
4330 .text_for_range(Point::new(cursor.row, 0)..cursor)
4331 .flat_map(str::chars)
4332 .count()
4333 + row_delta as usize;
4334 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4335 IndentSize::spaces(chars_to_next_tab_stop)
4336 };
4337 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4338 selection.end = selection.start;
4339 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4340 row_delta += tab_size.len;
4341 }
4342
4343 self.transact(cx, |this, cx| {
4344 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4345 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4346 this.refresh_copilot_suggestions(true, cx);
4347 });
4348 }
4349
4350 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4351 let mut selections = self.selections.all::<Point>(cx);
4352 let mut prev_edited_row = 0;
4353 let mut row_delta = 0;
4354 let mut edits = Vec::new();
4355 let buffer = self.buffer.read(cx);
4356 let snapshot = buffer.snapshot(cx);
4357 for selection in &mut selections {
4358 if selection.start.row != prev_edited_row {
4359 row_delta = 0;
4360 }
4361 prev_edited_row = selection.end.row;
4362
4363 row_delta =
4364 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4365 }
4366
4367 self.transact(cx, |this, cx| {
4368 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4369 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4370 });
4371 }
4372
4373 fn indent_selection(
4374 buffer: &MultiBuffer,
4375 snapshot: &MultiBufferSnapshot,
4376 selection: &mut Selection<Point>,
4377 edits: &mut Vec<(Range<Point>, String)>,
4378 delta_for_start_row: u32,
4379 cx: &AppContext,
4380 ) -> u32 {
4381 let settings = buffer.settings_at(selection.start, cx);
4382 let tab_size = settings.tab_size.get();
4383 let indent_kind = if settings.hard_tabs {
4384 IndentKind::Tab
4385 } else {
4386 IndentKind::Space
4387 };
4388 let mut start_row = selection.start.row;
4389 let mut end_row = selection.end.row + 1;
4390
4391 // If a selection ends at the beginning of a line, don't indent
4392 // that last line.
4393 if selection.end.column == 0 {
4394 end_row -= 1;
4395 }
4396
4397 // Avoid re-indenting a row that has already been indented by a
4398 // previous selection, but still update this selection's column
4399 // to reflect that indentation.
4400 if delta_for_start_row > 0 {
4401 start_row += 1;
4402 selection.start.column += delta_for_start_row;
4403 if selection.end.row == selection.start.row {
4404 selection.end.column += delta_for_start_row;
4405 }
4406 }
4407
4408 let mut delta_for_end_row = 0;
4409 for row in start_row..end_row {
4410 let current_indent = snapshot.indent_size_for_line(row);
4411 let indent_delta = match (current_indent.kind, indent_kind) {
4412 (IndentKind::Space, IndentKind::Space) => {
4413 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4414 IndentSize::spaces(columns_to_next_tab_stop)
4415 }
4416 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4417 (_, IndentKind::Tab) => IndentSize::tab(),
4418 };
4419
4420 let row_start = Point::new(row, 0);
4421 edits.push((
4422 row_start..row_start,
4423 indent_delta.chars().collect::<String>(),
4424 ));
4425
4426 // Update this selection's endpoints to reflect the indentation.
4427 if row == selection.start.row {
4428 selection.start.column += indent_delta.len;
4429 }
4430 if row == selection.end.row {
4431 selection.end.column += indent_delta.len;
4432 delta_for_end_row = indent_delta.len;
4433 }
4434 }
4435
4436 if selection.start.row == selection.end.row {
4437 delta_for_start_row + delta_for_end_row
4438 } else {
4439 delta_for_end_row
4440 }
4441 }
4442
4443 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4444 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4445 let selections = self.selections.all::<Point>(cx);
4446 let mut deletion_ranges = Vec::new();
4447 let mut last_outdent = None;
4448 {
4449 let buffer = self.buffer.read(cx);
4450 let snapshot = buffer.snapshot(cx);
4451 for selection in &selections {
4452 let settings = buffer.settings_at(selection.start, cx);
4453 let tab_size = settings.tab_size.get();
4454 let mut rows = selection.spanned_rows(false, &display_map);
4455
4456 // Avoid re-outdenting a row that has already been outdented by a
4457 // previous selection.
4458 if let Some(last_row) = last_outdent {
4459 if last_row == rows.start {
4460 rows.start += 1;
4461 }
4462 }
4463
4464 for row in rows {
4465 let indent_size = snapshot.indent_size_for_line(row);
4466 if indent_size.len > 0 {
4467 let deletion_len = match indent_size.kind {
4468 IndentKind::Space => {
4469 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4470 if columns_to_prev_tab_stop == 0 {
4471 tab_size
4472 } else {
4473 columns_to_prev_tab_stop
4474 }
4475 }
4476 IndentKind::Tab => 1,
4477 };
4478 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4479 last_outdent = Some(row);
4480 }
4481 }
4482 }
4483 }
4484
4485 self.transact(cx, |this, cx| {
4486 this.buffer.update(cx, |buffer, cx| {
4487 let empty_str: Arc<str> = "".into();
4488 buffer.edit(
4489 deletion_ranges
4490 .into_iter()
4491 .map(|range| (range, empty_str.clone())),
4492 None,
4493 cx,
4494 );
4495 });
4496 let selections = this.selections.all::<usize>(cx);
4497 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4498 });
4499 }
4500
4501 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4503 let selections = self.selections.all::<Point>(cx);
4504
4505 let mut new_cursors = Vec::new();
4506 let mut edit_ranges = Vec::new();
4507 let mut selections = selections.iter().peekable();
4508 while let Some(selection) = selections.next() {
4509 let mut rows = selection.spanned_rows(false, &display_map);
4510 let goal_display_column = selection.head().to_display_point(&display_map).column();
4511
4512 // Accumulate contiguous regions of rows that we want to delete.
4513 while let Some(next_selection) = selections.peek() {
4514 let next_rows = next_selection.spanned_rows(false, &display_map);
4515 if next_rows.start <= rows.end {
4516 rows.end = next_rows.end;
4517 selections.next().unwrap();
4518 } else {
4519 break;
4520 }
4521 }
4522
4523 let buffer = &display_map.buffer_snapshot;
4524 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4525 let edit_end;
4526 let cursor_buffer_row;
4527 if buffer.max_point().row >= rows.end {
4528 // If there's a line after the range, delete the \n from the end of the row range
4529 // and position the cursor on the next line.
4530 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4531 cursor_buffer_row = rows.end;
4532 } else {
4533 // If there isn't a line after the range, delete the \n from the line before the
4534 // start of the row range and position the cursor there.
4535 edit_start = edit_start.saturating_sub(1);
4536 edit_end = buffer.len();
4537 cursor_buffer_row = rows.start.saturating_sub(1);
4538 }
4539
4540 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4541 *cursor.column_mut() =
4542 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4543
4544 new_cursors.push((
4545 selection.id,
4546 buffer.anchor_after(cursor.to_point(&display_map)),
4547 ));
4548 edit_ranges.push(edit_start..edit_end);
4549 }
4550
4551 self.transact(cx, |this, cx| {
4552 let buffer = this.buffer.update(cx, |buffer, cx| {
4553 let empty_str: Arc<str> = "".into();
4554 buffer.edit(
4555 edit_ranges
4556 .into_iter()
4557 .map(|range| (range, empty_str.clone())),
4558 None,
4559 cx,
4560 );
4561 buffer.snapshot(cx)
4562 });
4563 let new_selections = new_cursors
4564 .into_iter()
4565 .map(|(id, cursor)| {
4566 let cursor = cursor.to_point(&buffer);
4567 Selection {
4568 id,
4569 start: cursor,
4570 end: cursor,
4571 reversed: false,
4572 goal: SelectionGoal::None,
4573 }
4574 })
4575 .collect();
4576
4577 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4578 s.select(new_selections);
4579 });
4580 });
4581 }
4582
4583 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4584 let mut row_ranges = Vec::<Range<u32>>::new();
4585 for selection in self.selections.all::<Point>(cx) {
4586 let start = selection.start.row;
4587 let end = if selection.start.row == selection.end.row {
4588 selection.start.row + 1
4589 } else {
4590 selection.end.row
4591 };
4592
4593 if let Some(last_row_range) = row_ranges.last_mut() {
4594 if start <= last_row_range.end {
4595 last_row_range.end = end;
4596 continue;
4597 }
4598 }
4599 row_ranges.push(start..end);
4600 }
4601
4602 let snapshot = self.buffer.read(cx).snapshot(cx);
4603 let mut cursor_positions = Vec::new();
4604 for row_range in &row_ranges {
4605 let anchor = snapshot.anchor_before(Point::new(
4606 row_range.end - 1,
4607 snapshot.line_len(row_range.end - 1),
4608 ));
4609 cursor_positions.push(anchor.clone()..anchor);
4610 }
4611
4612 self.transact(cx, |this, cx| {
4613 for row_range in row_ranges.into_iter().rev() {
4614 for row in row_range.rev() {
4615 let end_of_line = Point::new(row, snapshot.line_len(row));
4616 let indent = snapshot.indent_size_for_line(row + 1);
4617 let start_of_next_line = Point::new(row + 1, indent.len);
4618
4619 let replace = if snapshot.line_len(row + 1) > indent.len {
4620 " "
4621 } else {
4622 ""
4623 };
4624
4625 this.buffer.update(cx, |buffer, cx| {
4626 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4627 });
4628 }
4629 }
4630
4631 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4632 s.select_anchor_ranges(cursor_positions)
4633 });
4634 });
4635 }
4636
4637 pub fn sort_lines_case_sensitive(
4638 &mut self,
4639 _: &SortLinesCaseSensitive,
4640 cx: &mut ViewContext<Self>,
4641 ) {
4642 self.manipulate_lines(cx, |lines| lines.sort())
4643 }
4644
4645 pub fn sort_lines_case_insensitive(
4646 &mut self,
4647 _: &SortLinesCaseInsensitive,
4648 cx: &mut ViewContext<Self>,
4649 ) {
4650 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4651 }
4652
4653 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4654 self.manipulate_lines(cx, |lines| lines.reverse())
4655 }
4656
4657 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4658 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4659 }
4660
4661 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4662 where
4663 Fn: FnMut(&mut [&str]),
4664 {
4665 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4666 let buffer = self.buffer.read(cx).snapshot(cx);
4667
4668 let mut edits = Vec::new();
4669
4670 let selections = self.selections.all::<Point>(cx);
4671 let mut selections = selections.iter().peekable();
4672 let mut contiguous_row_selections = Vec::new();
4673 let mut new_selections = Vec::new();
4674
4675 while let Some(selection) = selections.next() {
4676 let (start_row, end_row) = consume_contiguous_rows(
4677 &mut contiguous_row_selections,
4678 selection,
4679 &display_map,
4680 &mut selections,
4681 );
4682
4683 let start_point = Point::new(start_row, 0);
4684 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4685 let text = buffer
4686 .text_for_range(start_point..end_point)
4687 .collect::<String>();
4688 let mut lines = text.split("\n").collect_vec();
4689
4690 let lines_len = lines.len();
4691 callback(&mut lines);
4692
4693 // This is a current limitation with selections.
4694 // If we wanted to support removing or adding lines, we'd need to fix the logic associated with selections.
4695 debug_assert!(
4696 lines.len() == lines_len,
4697 "callback should not change the number of lines"
4698 );
4699
4700 edits.push((start_point..end_point, lines.join("\n")));
4701 let start_anchor = buffer.anchor_after(start_point);
4702 let end_anchor = buffer.anchor_before(end_point);
4703
4704 // Make selection and push
4705 new_selections.push(Selection {
4706 id: selection.id,
4707 start: start_anchor.to_offset(&buffer),
4708 end: end_anchor.to_offset(&buffer),
4709 goal: SelectionGoal::None,
4710 reversed: selection.reversed,
4711 });
4712 }
4713
4714 self.transact(cx, |this, cx| {
4715 this.buffer.update(cx, |buffer, cx| {
4716 buffer.edit(edits, None, cx);
4717 });
4718
4719 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4720 s.select(new_selections);
4721 });
4722
4723 this.request_autoscroll(Autoscroll::fit(), cx);
4724 });
4725 }
4726
4727 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4728 self.manipulate_text(cx, |text| text.to_uppercase())
4729 }
4730
4731 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4732 self.manipulate_text(cx, |text| text.to_lowercase())
4733 }
4734
4735 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4736 self.manipulate_text(cx, |text| {
4737 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4738 // https://github.com/rutrum/convert-case/issues/16
4739 text.split("\n")
4740 .map(|line| line.to_case(Case::Title))
4741 .join("\n")
4742 })
4743 }
4744
4745 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4746 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4747 }
4748
4749 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4750 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4751 }
4752
4753 pub fn convert_to_upper_camel_case(
4754 &mut self,
4755 _: &ConvertToUpperCamelCase,
4756 cx: &mut ViewContext<Self>,
4757 ) {
4758 self.manipulate_text(cx, |text| {
4759 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4760 // https://github.com/rutrum/convert-case/issues/16
4761 text.split("\n")
4762 .map(|line| line.to_case(Case::UpperCamel))
4763 .join("\n")
4764 })
4765 }
4766
4767 pub fn convert_to_lower_camel_case(
4768 &mut self,
4769 _: &ConvertToLowerCamelCase,
4770 cx: &mut ViewContext<Self>,
4771 ) {
4772 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4773 }
4774
4775 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4776 where
4777 Fn: FnMut(&str) -> String,
4778 {
4779 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4780 let buffer = self.buffer.read(cx).snapshot(cx);
4781
4782 let mut new_selections = Vec::new();
4783 let mut edits = Vec::new();
4784 let mut selection_adjustment = 0i32;
4785
4786 for selection in self.selections.all::<usize>(cx) {
4787 let selection_is_empty = selection.is_empty();
4788
4789 let (start, end) = if selection_is_empty {
4790 let word_range = movement::surrounding_word(
4791 &display_map,
4792 selection.start.to_display_point(&display_map),
4793 );
4794 let start = word_range.start.to_offset(&display_map, Bias::Left);
4795 let end = word_range.end.to_offset(&display_map, Bias::Left);
4796 (start, end)
4797 } else {
4798 (selection.start, selection.end)
4799 };
4800
4801 let text = buffer.text_for_range(start..end).collect::<String>();
4802 let old_length = text.len() as i32;
4803 let text = callback(&text);
4804
4805 new_selections.push(Selection {
4806 start: (start as i32 - selection_adjustment) as usize,
4807 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4808 goal: SelectionGoal::None,
4809 ..selection
4810 });
4811
4812 selection_adjustment += old_length - text.len() as i32;
4813
4814 edits.push((start..end, text));
4815 }
4816
4817 self.transact(cx, |this, cx| {
4818 this.buffer.update(cx, |buffer, cx| {
4819 buffer.edit(edits, None, cx);
4820 });
4821
4822 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4823 s.select(new_selections);
4824 });
4825
4826 this.request_autoscroll(Autoscroll::fit(), cx);
4827 });
4828 }
4829
4830 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4831 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4832 let buffer = &display_map.buffer_snapshot;
4833 let selections = self.selections.all::<Point>(cx);
4834
4835 let mut edits = Vec::new();
4836 let mut selections_iter = selections.iter().peekable();
4837 while let Some(selection) = selections_iter.next() {
4838 // Avoid duplicating the same lines twice.
4839 let mut rows = selection.spanned_rows(false, &display_map);
4840
4841 while let Some(next_selection) = selections_iter.peek() {
4842 let next_rows = next_selection.spanned_rows(false, &display_map);
4843 if next_rows.start < rows.end {
4844 rows.end = next_rows.end;
4845 selections_iter.next().unwrap();
4846 } else {
4847 break;
4848 }
4849 }
4850
4851 // Copy the text from the selected row region and splice it at the start of the region.
4852 let start = Point::new(rows.start, 0);
4853 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4854 let text = buffer
4855 .text_for_range(start..end)
4856 .chain(Some("\n"))
4857 .collect::<String>();
4858 edits.push((start..start, text));
4859 }
4860
4861 self.transact(cx, |this, cx| {
4862 this.buffer.update(cx, |buffer, cx| {
4863 buffer.edit(edits, None, cx);
4864 });
4865
4866 this.request_autoscroll(Autoscroll::fit(), cx);
4867 });
4868 }
4869
4870 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4871 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4872 let buffer = self.buffer.read(cx).snapshot(cx);
4873
4874 let mut edits = Vec::new();
4875 let mut unfold_ranges = Vec::new();
4876 let mut refold_ranges = Vec::new();
4877
4878 let selections = self.selections.all::<Point>(cx);
4879 let mut selections = selections.iter().peekable();
4880 let mut contiguous_row_selections = Vec::new();
4881 let mut new_selections = Vec::new();
4882
4883 while let Some(selection) = selections.next() {
4884 // Find all the selections that span a contiguous row range
4885 let (start_row, end_row) = consume_contiguous_rows(
4886 &mut contiguous_row_selections,
4887 selection,
4888 &display_map,
4889 &mut selections,
4890 );
4891
4892 // Move the text spanned by the row range to be before the line preceding the row range
4893 if start_row > 0 {
4894 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4895 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4896 let insertion_point = display_map
4897 .prev_line_boundary(Point::new(start_row - 1, 0))
4898 .0;
4899
4900 // Don't move lines across excerpts
4901 if buffer
4902 .excerpt_boundaries_in_range((
4903 Bound::Excluded(insertion_point),
4904 Bound::Included(range_to_move.end),
4905 ))
4906 .next()
4907 .is_none()
4908 {
4909 let text = buffer
4910 .text_for_range(range_to_move.clone())
4911 .flat_map(|s| s.chars())
4912 .skip(1)
4913 .chain(['\n'])
4914 .collect::<String>();
4915
4916 edits.push((
4917 buffer.anchor_after(range_to_move.start)
4918 ..buffer.anchor_before(range_to_move.end),
4919 String::new(),
4920 ));
4921 let insertion_anchor = buffer.anchor_after(insertion_point);
4922 edits.push((insertion_anchor..insertion_anchor, text));
4923
4924 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4925
4926 // Move selections up
4927 new_selections.extend(contiguous_row_selections.drain(..).map(
4928 |mut selection| {
4929 selection.start.row -= row_delta;
4930 selection.end.row -= row_delta;
4931 selection
4932 },
4933 ));
4934
4935 // Move folds up
4936 unfold_ranges.push(range_to_move.clone());
4937 for fold in display_map.folds_in_range(
4938 buffer.anchor_before(range_to_move.start)
4939 ..buffer.anchor_after(range_to_move.end),
4940 ) {
4941 let mut start = fold.range.start.to_point(&buffer);
4942 let mut end = fold.range.end.to_point(&buffer);
4943 start.row -= row_delta;
4944 end.row -= row_delta;
4945 refold_ranges.push(start..end);
4946 }
4947 }
4948 }
4949
4950 // If we didn't move line(s), preserve the existing selections
4951 new_selections.append(&mut contiguous_row_selections);
4952 }
4953
4954 self.transact(cx, |this, cx| {
4955 this.unfold_ranges(unfold_ranges, true, true, cx);
4956 this.buffer.update(cx, |buffer, cx| {
4957 for (range, text) in edits {
4958 buffer.edit([(range, text)], None, cx);
4959 }
4960 });
4961 this.fold_ranges(refold_ranges, true, cx);
4962 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4963 s.select(new_selections);
4964 })
4965 });
4966 }
4967
4968 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
4969 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4970 let buffer = self.buffer.read(cx).snapshot(cx);
4971
4972 let mut edits = Vec::new();
4973 let mut unfold_ranges = Vec::new();
4974 let mut refold_ranges = Vec::new();
4975
4976 let selections = self.selections.all::<Point>(cx);
4977 let mut selections = selections.iter().peekable();
4978 let mut contiguous_row_selections = Vec::new();
4979 let mut new_selections = Vec::new();
4980
4981 while let Some(selection) = selections.next() {
4982 // Find all the selections that span a contiguous row range
4983 let (start_row, end_row) = consume_contiguous_rows(
4984 &mut contiguous_row_selections,
4985 selection,
4986 &display_map,
4987 &mut selections,
4988 );
4989
4990 // Move the text spanned by the row range to be after the last line of the row range
4991 if end_row <= buffer.max_point().row {
4992 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
4993 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
4994
4995 // Don't move lines across excerpt boundaries
4996 if buffer
4997 .excerpt_boundaries_in_range((
4998 Bound::Excluded(range_to_move.start),
4999 Bound::Included(insertion_point),
5000 ))
5001 .next()
5002 .is_none()
5003 {
5004 let mut text = String::from("\n");
5005 text.extend(buffer.text_for_range(range_to_move.clone()));
5006 text.pop(); // Drop trailing newline
5007 edits.push((
5008 buffer.anchor_after(range_to_move.start)
5009 ..buffer.anchor_before(range_to_move.end),
5010 String::new(),
5011 ));
5012 let insertion_anchor = buffer.anchor_after(insertion_point);
5013 edits.push((insertion_anchor..insertion_anchor, text));
5014
5015 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5016
5017 // Move selections down
5018 new_selections.extend(contiguous_row_selections.drain(..).map(
5019 |mut selection| {
5020 selection.start.row += row_delta;
5021 selection.end.row += row_delta;
5022 selection
5023 },
5024 ));
5025
5026 // Move folds down
5027 unfold_ranges.push(range_to_move.clone());
5028 for fold in display_map.folds_in_range(
5029 buffer.anchor_before(range_to_move.start)
5030 ..buffer.anchor_after(range_to_move.end),
5031 ) {
5032 let mut start = fold.range.start.to_point(&buffer);
5033 let mut end = fold.range.end.to_point(&buffer);
5034 start.row += row_delta;
5035 end.row += row_delta;
5036 refold_ranges.push(start..end);
5037 }
5038 }
5039 }
5040
5041 // If we didn't move line(s), preserve the existing selections
5042 new_selections.append(&mut contiguous_row_selections);
5043 }
5044
5045 self.transact(cx, |this, cx| {
5046 this.unfold_ranges(unfold_ranges, true, true, cx);
5047 this.buffer.update(cx, |buffer, cx| {
5048 for (range, text) in edits {
5049 buffer.edit([(range, text)], None, cx);
5050 }
5051 });
5052 this.fold_ranges(refold_ranges, true, cx);
5053 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5054 });
5055 }
5056
5057 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5058 let text_layout_details = &self.text_layout_details(cx);
5059 self.transact(cx, |this, cx| {
5060 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5061 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5062 let line_mode = s.line_mode;
5063 s.move_with(|display_map, selection| {
5064 if !selection.is_empty() || line_mode {
5065 return;
5066 }
5067
5068 let mut head = selection.head();
5069 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5070 if head.column() == display_map.line_len(head.row()) {
5071 transpose_offset = display_map
5072 .buffer_snapshot
5073 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5074 }
5075
5076 if transpose_offset == 0 {
5077 return;
5078 }
5079
5080 *head.column_mut() += 1;
5081 head = display_map.clip_point(head, Bias::Right);
5082 let goal = SelectionGoal::HorizontalPosition(
5083 display_map
5084 .x_for_display_point(head, &text_layout_details)
5085 .into(),
5086 );
5087 selection.collapse_to(head, goal);
5088
5089 let transpose_start = display_map
5090 .buffer_snapshot
5091 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5092 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5093 let transpose_end = display_map
5094 .buffer_snapshot
5095 .clip_offset(transpose_offset + 1, Bias::Right);
5096 if let Some(ch) =
5097 display_map.buffer_snapshot.chars_at(transpose_start).next()
5098 {
5099 edits.push((transpose_start..transpose_offset, String::new()));
5100 edits.push((transpose_end..transpose_end, ch.to_string()));
5101 }
5102 }
5103 });
5104 edits
5105 });
5106 this.buffer
5107 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5108 let selections = this.selections.all::<usize>(cx);
5109 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5110 s.select(selections);
5111 });
5112 });
5113 }
5114
5115 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5116 let mut text = String::new();
5117 let buffer = self.buffer.read(cx).snapshot(cx);
5118 let mut selections = self.selections.all::<Point>(cx);
5119 let mut clipboard_selections = Vec::with_capacity(selections.len());
5120 {
5121 let max_point = buffer.max_point();
5122 let mut is_first = true;
5123 for selection in &mut selections {
5124 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5125 if is_entire_line {
5126 selection.start = Point::new(selection.start.row, 0);
5127 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5128 selection.goal = SelectionGoal::None;
5129 }
5130 if is_first {
5131 is_first = false;
5132 } else {
5133 text += "\n";
5134 }
5135 let mut len = 0;
5136 for chunk in buffer.text_for_range(selection.start..selection.end) {
5137 text.push_str(chunk);
5138 len += chunk.len();
5139 }
5140 clipboard_selections.push(ClipboardSelection {
5141 len,
5142 is_entire_line,
5143 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5144 });
5145 }
5146 }
5147
5148 self.transact(cx, |this, cx| {
5149 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5150 s.select(selections);
5151 });
5152 this.insert("", cx);
5153 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5154 });
5155 }
5156
5157 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5158 let selections = self.selections.all::<Point>(cx);
5159 let buffer = self.buffer.read(cx).read(cx);
5160 let mut text = String::new();
5161
5162 let mut clipboard_selections = Vec::with_capacity(selections.len());
5163 {
5164 let max_point = buffer.max_point();
5165 let mut is_first = true;
5166 for selection in selections.iter() {
5167 let mut start = selection.start;
5168 let mut end = selection.end;
5169 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5170 if is_entire_line {
5171 start = Point::new(start.row, 0);
5172 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5173 }
5174 if is_first {
5175 is_first = false;
5176 } else {
5177 text += "\n";
5178 }
5179 let mut len = 0;
5180 for chunk in buffer.text_for_range(start..end) {
5181 text.push_str(chunk);
5182 len += chunk.len();
5183 }
5184 clipboard_selections.push(ClipboardSelection {
5185 len,
5186 is_entire_line,
5187 first_line_indent: buffer.indent_size_for_line(start.row).len,
5188 });
5189 }
5190 }
5191
5192 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5193 }
5194
5195 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5196 if self.read_only(cx) {
5197 return;
5198 }
5199
5200 self.transact(cx, |this, cx| {
5201 if let Some(item) = cx.read_from_clipboard() {
5202 let clipboard_text = Cow::Borrowed(item.text());
5203 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5204 let old_selections = this.selections.all::<usize>(cx);
5205 let all_selections_were_entire_line =
5206 clipboard_selections.iter().all(|s| s.is_entire_line);
5207 let first_selection_indent_column =
5208 clipboard_selections.first().map(|s| s.first_line_indent);
5209 if clipboard_selections.len() != old_selections.len() {
5210 clipboard_selections.drain(..);
5211 }
5212
5213 this.buffer.update(cx, |buffer, cx| {
5214 let snapshot = buffer.read(cx);
5215 let mut start_offset = 0;
5216 let mut edits = Vec::new();
5217 let mut original_indent_columns = Vec::new();
5218 let line_mode = this.selections.line_mode;
5219 for (ix, selection) in old_selections.iter().enumerate() {
5220 let to_insert;
5221 let entire_line;
5222 let original_indent_column;
5223 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5224 let end_offset = start_offset + clipboard_selection.len;
5225 to_insert = &clipboard_text[start_offset..end_offset];
5226 entire_line = clipboard_selection.is_entire_line;
5227 start_offset = end_offset + 1;
5228 original_indent_column =
5229 Some(clipboard_selection.first_line_indent);
5230 } else {
5231 to_insert = clipboard_text.as_str();
5232 entire_line = all_selections_were_entire_line;
5233 original_indent_column = first_selection_indent_column
5234 }
5235
5236 // If the corresponding selection was empty when this slice of the
5237 // clipboard text was written, then the entire line containing the
5238 // selection was copied. If this selection is also currently empty,
5239 // then paste the line before the current line of the buffer.
5240 let range = if selection.is_empty() && !line_mode && entire_line {
5241 let column = selection.start.to_point(&snapshot).column as usize;
5242 let line_start = selection.start - column;
5243 line_start..line_start
5244 } else {
5245 selection.range()
5246 };
5247
5248 edits.push((range, to_insert));
5249 original_indent_columns.extend(original_indent_column);
5250 }
5251 drop(snapshot);
5252
5253 buffer.edit(
5254 edits,
5255 Some(AutoindentMode::Block {
5256 original_indent_columns,
5257 }),
5258 cx,
5259 );
5260 });
5261
5262 let selections = this.selections.all::<usize>(cx);
5263 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5264 } else {
5265 this.insert(&clipboard_text, cx);
5266 }
5267 }
5268 });
5269 }
5270
5271 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5272 if self.read_only(cx) {
5273 return;
5274 }
5275
5276 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5277 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5278 self.change_selections(None, cx, |s| {
5279 s.select_anchors(selections.to_vec());
5280 });
5281 }
5282 self.request_autoscroll(Autoscroll::fit(), cx);
5283 self.unmark_text(cx);
5284 self.refresh_copilot_suggestions(true, cx);
5285 cx.emit(EditorEvent::Edited);
5286 }
5287 }
5288
5289 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5290 if self.read_only(cx) {
5291 return;
5292 }
5293
5294 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5295 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5296 {
5297 self.change_selections(None, cx, |s| {
5298 s.select_anchors(selections.to_vec());
5299 });
5300 }
5301 self.request_autoscroll(Autoscroll::fit(), cx);
5302 self.unmark_text(cx);
5303 self.refresh_copilot_suggestions(true, cx);
5304 cx.emit(EditorEvent::Edited);
5305 }
5306 }
5307
5308 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5309 self.buffer
5310 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5311 }
5312
5313 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5314 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5315 let line_mode = s.line_mode;
5316 s.move_with(|map, selection| {
5317 let cursor = if selection.is_empty() && !line_mode {
5318 movement::left(map, selection.start)
5319 } else {
5320 selection.start
5321 };
5322 selection.collapse_to(cursor, SelectionGoal::None);
5323 });
5324 })
5325 }
5326
5327 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5329 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5330 })
5331 }
5332
5333 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5334 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5335 let line_mode = s.line_mode;
5336 s.move_with(|map, selection| {
5337 let cursor = if selection.is_empty() && !line_mode {
5338 movement::right(map, selection.end)
5339 } else {
5340 selection.end
5341 };
5342 selection.collapse_to(cursor, SelectionGoal::None)
5343 });
5344 })
5345 }
5346
5347 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5348 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5349 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5350 })
5351 }
5352
5353 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5354 if self.take_rename(true, cx).is_some() {
5355 return;
5356 }
5357
5358 if matches!(self.mode, EditorMode::SingleLine) {
5359 cx.propagate();
5360 return;
5361 }
5362
5363 let text_layout_details = &self.text_layout_details(cx);
5364
5365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5366 let line_mode = s.line_mode;
5367 s.move_with(|map, selection| {
5368 if !selection.is_empty() && !line_mode {
5369 selection.goal = SelectionGoal::None;
5370 }
5371 let (cursor, goal) = movement::up(
5372 map,
5373 selection.start,
5374 selection.goal,
5375 false,
5376 &text_layout_details,
5377 );
5378 selection.collapse_to(cursor, goal);
5379 });
5380 })
5381 }
5382
5383 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5384 if self.take_rename(true, cx).is_some() {
5385 return;
5386 }
5387
5388 if matches!(self.mode, EditorMode::SingleLine) {
5389 cx.propagate();
5390 return;
5391 }
5392
5393 let text_layout_details = &self.text_layout_details(cx);
5394
5395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5396 let line_mode = s.line_mode;
5397 s.move_with(|map, selection| {
5398 if !selection.is_empty() && !line_mode {
5399 selection.goal = SelectionGoal::None;
5400 }
5401 let (cursor, goal) = movement::up_by_rows(
5402 map,
5403 selection.start,
5404 action.lines,
5405 selection.goal,
5406 false,
5407 &text_layout_details,
5408 );
5409 selection.collapse_to(cursor, goal);
5410 });
5411 })
5412 }
5413
5414 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5415 if self.take_rename(true, cx).is_some() {
5416 return;
5417 }
5418
5419 if matches!(self.mode, EditorMode::SingleLine) {
5420 cx.propagate();
5421 return;
5422 }
5423
5424 let text_layout_details = &self.text_layout_details(cx);
5425
5426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5427 let line_mode = s.line_mode;
5428 s.move_with(|map, selection| {
5429 if !selection.is_empty() && !line_mode {
5430 selection.goal = SelectionGoal::None;
5431 }
5432 let (cursor, goal) = movement::down_by_rows(
5433 map,
5434 selection.start,
5435 action.lines,
5436 selection.goal,
5437 false,
5438 &text_layout_details,
5439 );
5440 selection.collapse_to(cursor, goal);
5441 });
5442 })
5443 }
5444
5445 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5446 let text_layout_details = &self.text_layout_details(cx);
5447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5448 s.move_heads_with(|map, head, goal| {
5449 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5450 })
5451 })
5452 }
5453
5454 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5455 let text_layout_details = &self.text_layout_details(cx);
5456 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5457 s.move_heads_with(|map, head, goal| {
5458 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5459 })
5460 })
5461 }
5462
5463 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5464 if self.take_rename(true, cx).is_some() {
5465 return;
5466 }
5467
5468 if matches!(self.mode, EditorMode::SingleLine) {
5469 cx.propagate();
5470 return;
5471 }
5472
5473 let row_count = if let Some(row_count) = self.visible_line_count() {
5474 row_count as u32 - 1
5475 } else {
5476 return;
5477 };
5478
5479 let autoscroll = if action.center_cursor {
5480 Autoscroll::center()
5481 } else {
5482 Autoscroll::fit()
5483 };
5484
5485 let text_layout_details = &self.text_layout_details(cx);
5486
5487 self.change_selections(Some(autoscroll), cx, |s| {
5488 let line_mode = s.line_mode;
5489 s.move_with(|map, selection| {
5490 if !selection.is_empty() && !line_mode {
5491 selection.goal = SelectionGoal::None;
5492 }
5493 let (cursor, goal) = movement::up_by_rows(
5494 map,
5495 selection.end,
5496 row_count,
5497 selection.goal,
5498 false,
5499 &text_layout_details,
5500 );
5501 selection.collapse_to(cursor, goal);
5502 });
5503 });
5504 }
5505
5506 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5507 let text_layout_details = &self.text_layout_details(cx);
5508 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5509 s.move_heads_with(|map, head, goal| {
5510 movement::up(map, head, goal, false, &text_layout_details)
5511 })
5512 })
5513 }
5514
5515 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5516 self.take_rename(true, cx);
5517
5518 if self.mode == EditorMode::SingleLine {
5519 cx.propagate();
5520 return;
5521 }
5522
5523 let text_layout_details = &self.text_layout_details(cx);
5524 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5525 let line_mode = s.line_mode;
5526 s.move_with(|map, selection| {
5527 if !selection.is_empty() && !line_mode {
5528 selection.goal = SelectionGoal::None;
5529 }
5530 let (cursor, goal) = movement::down(
5531 map,
5532 selection.end,
5533 selection.goal,
5534 false,
5535 &text_layout_details,
5536 );
5537 selection.collapse_to(cursor, goal);
5538 });
5539 });
5540 }
5541
5542 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5543 if self.take_rename(true, cx).is_some() {
5544 return;
5545 }
5546
5547 if self
5548 .context_menu
5549 .write()
5550 .as_mut()
5551 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5552 .unwrap_or(false)
5553 {
5554 return;
5555 }
5556
5557 if matches!(self.mode, EditorMode::SingleLine) {
5558 cx.propagate();
5559 return;
5560 }
5561
5562 let row_count = if let Some(row_count) = self.visible_line_count() {
5563 row_count as u32 - 1
5564 } else {
5565 return;
5566 };
5567
5568 let autoscroll = if action.center_cursor {
5569 Autoscroll::center()
5570 } else {
5571 Autoscroll::fit()
5572 };
5573
5574 let text_layout_details = &self.text_layout_details(cx);
5575 self.change_selections(Some(autoscroll), cx, |s| {
5576 let line_mode = s.line_mode;
5577 s.move_with(|map, selection| {
5578 if !selection.is_empty() && !line_mode {
5579 selection.goal = SelectionGoal::None;
5580 }
5581 let (cursor, goal) = movement::down_by_rows(
5582 map,
5583 selection.end,
5584 row_count,
5585 selection.goal,
5586 false,
5587 &text_layout_details,
5588 );
5589 selection.collapse_to(cursor, goal);
5590 });
5591 });
5592 }
5593
5594 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5595 let text_layout_details = &self.text_layout_details(cx);
5596 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5597 s.move_heads_with(|map, head, goal| {
5598 movement::down(map, head, goal, false, &text_layout_details)
5599 })
5600 });
5601 }
5602
5603 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5604 if let Some(context_menu) = self.context_menu.write().as_mut() {
5605 context_menu.select_first(self.project.as_ref(), cx);
5606 }
5607 }
5608
5609 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5610 if let Some(context_menu) = self.context_menu.write().as_mut() {
5611 context_menu.select_prev(self.project.as_ref(), cx);
5612 }
5613 }
5614
5615 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5616 if let Some(context_menu) = self.context_menu.write().as_mut() {
5617 context_menu.select_next(self.project.as_ref(), cx);
5618 }
5619 }
5620
5621 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5622 if let Some(context_menu) = self.context_menu.write().as_mut() {
5623 context_menu.select_last(self.project.as_ref(), cx);
5624 }
5625 }
5626
5627 pub fn move_to_previous_word_start(
5628 &mut self,
5629 _: &MoveToPreviousWordStart,
5630 cx: &mut ViewContext<Self>,
5631 ) {
5632 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5633 s.move_cursors_with(|map, head, _| {
5634 (
5635 movement::previous_word_start(map, head),
5636 SelectionGoal::None,
5637 )
5638 });
5639 })
5640 }
5641
5642 pub fn move_to_previous_subword_start(
5643 &mut self,
5644 _: &MoveToPreviousSubwordStart,
5645 cx: &mut ViewContext<Self>,
5646 ) {
5647 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5648 s.move_cursors_with(|map, head, _| {
5649 (
5650 movement::previous_subword_start(map, head),
5651 SelectionGoal::None,
5652 )
5653 });
5654 })
5655 }
5656
5657 pub fn select_to_previous_word_start(
5658 &mut self,
5659 _: &SelectToPreviousWordStart,
5660 cx: &mut ViewContext<Self>,
5661 ) {
5662 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5663 s.move_heads_with(|map, head, _| {
5664 (
5665 movement::previous_word_start(map, head),
5666 SelectionGoal::None,
5667 )
5668 });
5669 })
5670 }
5671
5672 pub fn select_to_previous_subword_start(
5673 &mut self,
5674 _: &SelectToPreviousSubwordStart,
5675 cx: &mut ViewContext<Self>,
5676 ) {
5677 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5678 s.move_heads_with(|map, head, _| {
5679 (
5680 movement::previous_subword_start(map, head),
5681 SelectionGoal::None,
5682 )
5683 });
5684 })
5685 }
5686
5687 pub fn delete_to_previous_word_start(
5688 &mut self,
5689 _: &DeleteToPreviousWordStart,
5690 cx: &mut ViewContext<Self>,
5691 ) {
5692 self.transact(cx, |this, cx| {
5693 this.select_autoclose_pair(cx);
5694 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5695 let line_mode = s.line_mode;
5696 s.move_with(|map, selection| {
5697 if selection.is_empty() && !line_mode {
5698 let cursor = movement::previous_word_start(map, selection.head());
5699 selection.set_head(cursor, SelectionGoal::None);
5700 }
5701 });
5702 });
5703 this.insert("", cx);
5704 });
5705 }
5706
5707 pub fn delete_to_previous_subword_start(
5708 &mut self,
5709 _: &DeleteToPreviousSubwordStart,
5710 cx: &mut ViewContext<Self>,
5711 ) {
5712 self.transact(cx, |this, cx| {
5713 this.select_autoclose_pair(cx);
5714 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5715 let line_mode = s.line_mode;
5716 s.move_with(|map, selection| {
5717 if selection.is_empty() && !line_mode {
5718 let cursor = movement::previous_subword_start(map, selection.head());
5719 selection.set_head(cursor, SelectionGoal::None);
5720 }
5721 });
5722 });
5723 this.insert("", cx);
5724 });
5725 }
5726
5727 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5729 s.move_cursors_with(|map, head, _| {
5730 (movement::next_word_end(map, head), SelectionGoal::None)
5731 });
5732 })
5733 }
5734
5735 pub fn move_to_next_subword_end(
5736 &mut self,
5737 _: &MoveToNextSubwordEnd,
5738 cx: &mut ViewContext<Self>,
5739 ) {
5740 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5741 s.move_cursors_with(|map, head, _| {
5742 (movement::next_subword_end(map, head), SelectionGoal::None)
5743 });
5744 })
5745 }
5746
5747 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.move_heads_with(|map, head, _| {
5750 (movement::next_word_end(map, head), SelectionGoal::None)
5751 });
5752 })
5753 }
5754
5755 pub fn select_to_next_subword_end(
5756 &mut self,
5757 _: &SelectToNextSubwordEnd,
5758 cx: &mut ViewContext<Self>,
5759 ) {
5760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5761 s.move_heads_with(|map, head, _| {
5762 (movement::next_subword_end(map, head), SelectionGoal::None)
5763 });
5764 })
5765 }
5766
5767 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5768 self.transact(cx, |this, cx| {
5769 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5770 let line_mode = s.line_mode;
5771 s.move_with(|map, selection| {
5772 if selection.is_empty() && !line_mode {
5773 let cursor = movement::next_word_end(map, selection.head());
5774 selection.set_head(cursor, SelectionGoal::None);
5775 }
5776 });
5777 });
5778 this.insert("", cx);
5779 });
5780 }
5781
5782 pub fn delete_to_next_subword_end(
5783 &mut self,
5784 _: &DeleteToNextSubwordEnd,
5785 cx: &mut ViewContext<Self>,
5786 ) {
5787 self.transact(cx, |this, cx| {
5788 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5789 s.move_with(|map, selection| {
5790 if selection.is_empty() {
5791 let cursor = movement::next_subword_end(map, selection.head());
5792 selection.set_head(cursor, SelectionGoal::None);
5793 }
5794 });
5795 });
5796 this.insert("", cx);
5797 });
5798 }
5799
5800 pub fn move_to_beginning_of_line(
5801 &mut self,
5802 _: &MoveToBeginningOfLine,
5803 cx: &mut ViewContext<Self>,
5804 ) {
5805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5806 s.move_cursors_with(|map, head, _| {
5807 (
5808 movement::indented_line_beginning(map, head, true),
5809 SelectionGoal::None,
5810 )
5811 });
5812 })
5813 }
5814
5815 pub fn select_to_beginning_of_line(
5816 &mut self,
5817 action: &SelectToBeginningOfLine,
5818 cx: &mut ViewContext<Self>,
5819 ) {
5820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5821 s.move_heads_with(|map, head, _| {
5822 (
5823 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5824 SelectionGoal::None,
5825 )
5826 });
5827 });
5828 }
5829
5830 pub fn delete_to_beginning_of_line(
5831 &mut self,
5832 _: &DeleteToBeginningOfLine,
5833 cx: &mut ViewContext<Self>,
5834 ) {
5835 self.transact(cx, |this, cx| {
5836 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5837 s.move_with(|_, selection| {
5838 selection.reversed = true;
5839 });
5840 });
5841
5842 this.select_to_beginning_of_line(
5843 &SelectToBeginningOfLine {
5844 stop_at_soft_wraps: false,
5845 },
5846 cx,
5847 );
5848 this.backspace(&Backspace, cx);
5849 });
5850 }
5851
5852 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5853 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5854 s.move_cursors_with(|map, head, _| {
5855 (movement::line_end(map, head, true), SelectionGoal::None)
5856 });
5857 })
5858 }
5859
5860 pub fn select_to_end_of_line(
5861 &mut self,
5862 action: &SelectToEndOfLine,
5863 cx: &mut ViewContext<Self>,
5864 ) {
5865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5866 s.move_heads_with(|map, head, _| {
5867 (
5868 movement::line_end(map, head, action.stop_at_soft_wraps),
5869 SelectionGoal::None,
5870 )
5871 });
5872 })
5873 }
5874
5875 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5876 self.transact(cx, |this, cx| {
5877 this.select_to_end_of_line(
5878 &SelectToEndOfLine {
5879 stop_at_soft_wraps: false,
5880 },
5881 cx,
5882 );
5883 this.delete(&Delete, cx);
5884 });
5885 }
5886
5887 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5888 self.transact(cx, |this, cx| {
5889 this.select_to_end_of_line(
5890 &SelectToEndOfLine {
5891 stop_at_soft_wraps: false,
5892 },
5893 cx,
5894 );
5895 this.cut(&Cut, cx);
5896 });
5897 }
5898
5899 pub fn move_to_start_of_paragraph(
5900 &mut self,
5901 _: &MoveToStartOfParagraph,
5902 cx: &mut ViewContext<Self>,
5903 ) {
5904 if matches!(self.mode, EditorMode::SingleLine) {
5905 cx.propagate();
5906 return;
5907 }
5908
5909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5910 s.move_with(|map, selection| {
5911 selection.collapse_to(
5912 movement::start_of_paragraph(map, selection.head(), 1),
5913 SelectionGoal::None,
5914 )
5915 });
5916 })
5917 }
5918
5919 pub fn move_to_end_of_paragraph(
5920 &mut self,
5921 _: &MoveToEndOfParagraph,
5922 cx: &mut ViewContext<Self>,
5923 ) {
5924 if matches!(self.mode, EditorMode::SingleLine) {
5925 cx.propagate();
5926 return;
5927 }
5928
5929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5930 s.move_with(|map, selection| {
5931 selection.collapse_to(
5932 movement::end_of_paragraph(map, selection.head(), 1),
5933 SelectionGoal::None,
5934 )
5935 });
5936 })
5937 }
5938
5939 pub fn select_to_start_of_paragraph(
5940 &mut self,
5941 _: &SelectToStartOfParagraph,
5942 cx: &mut ViewContext<Self>,
5943 ) {
5944 if matches!(self.mode, EditorMode::SingleLine) {
5945 cx.propagate();
5946 return;
5947 }
5948
5949 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5950 s.move_heads_with(|map, head, _| {
5951 (
5952 movement::start_of_paragraph(map, head, 1),
5953 SelectionGoal::None,
5954 )
5955 });
5956 })
5957 }
5958
5959 pub fn select_to_end_of_paragraph(
5960 &mut self,
5961 _: &SelectToEndOfParagraph,
5962 cx: &mut ViewContext<Self>,
5963 ) {
5964 if matches!(self.mode, EditorMode::SingleLine) {
5965 cx.propagate();
5966 return;
5967 }
5968
5969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5970 s.move_heads_with(|map, head, _| {
5971 (
5972 movement::end_of_paragraph(map, head, 1),
5973 SelectionGoal::None,
5974 )
5975 });
5976 })
5977 }
5978
5979 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
5980 if matches!(self.mode, EditorMode::SingleLine) {
5981 cx.propagate();
5982 return;
5983 }
5984
5985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5986 s.select_ranges(vec![0..0]);
5987 });
5988 }
5989
5990 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
5991 let mut selection = self.selections.last::<Point>(cx);
5992 selection.set_head(Point::zero(), SelectionGoal::None);
5993
5994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5995 s.select(vec![selection]);
5996 });
5997 }
5998
5999 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6000 if matches!(self.mode, EditorMode::SingleLine) {
6001 cx.propagate();
6002 return;
6003 }
6004
6005 let cursor = self.buffer.read(cx).read(cx).len();
6006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6007 s.select_ranges(vec![cursor..cursor])
6008 });
6009 }
6010
6011 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6012 self.nav_history = nav_history;
6013 }
6014
6015 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6016 self.nav_history.as_ref()
6017 }
6018
6019 fn push_to_nav_history(
6020 &mut self,
6021 cursor_anchor: Anchor,
6022 new_position: Option<Point>,
6023 cx: &mut ViewContext<Self>,
6024 ) {
6025 if let Some(nav_history) = self.nav_history.as_mut() {
6026 let buffer = self.buffer.read(cx).read(cx);
6027 let cursor_position = cursor_anchor.to_point(&buffer);
6028 let scroll_state = self.scroll_manager.anchor();
6029 let scroll_top_row = scroll_state.top_row(&buffer);
6030 drop(buffer);
6031
6032 if let Some(new_position) = new_position {
6033 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6034 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6035 return;
6036 }
6037 }
6038
6039 nav_history.push(
6040 Some(NavigationData {
6041 cursor_anchor,
6042 cursor_position,
6043 scroll_anchor: scroll_state,
6044 scroll_top_row,
6045 }),
6046 cx,
6047 );
6048 }
6049 }
6050
6051 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6052 let buffer = self.buffer.read(cx).snapshot(cx);
6053 let mut selection = self.selections.first::<usize>(cx);
6054 selection.set_head(buffer.len(), SelectionGoal::None);
6055 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6056 s.select(vec![selection]);
6057 });
6058 }
6059
6060 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6061 let end = self.buffer.read(cx).read(cx).len();
6062 self.change_selections(None, cx, |s| {
6063 s.select_ranges(vec![0..end]);
6064 });
6065 }
6066
6067 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6068 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6069 let mut selections = self.selections.all::<Point>(cx);
6070 let max_point = display_map.buffer_snapshot.max_point();
6071 for selection in &mut selections {
6072 let rows = selection.spanned_rows(true, &display_map);
6073 selection.start = Point::new(rows.start, 0);
6074 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6075 selection.reversed = false;
6076 }
6077 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6078 s.select(selections);
6079 });
6080 }
6081
6082 pub fn split_selection_into_lines(
6083 &mut self,
6084 _: &SplitSelectionIntoLines,
6085 cx: &mut ViewContext<Self>,
6086 ) {
6087 let mut to_unfold = Vec::new();
6088 let mut new_selection_ranges = Vec::new();
6089 {
6090 let selections = self.selections.all::<Point>(cx);
6091 let buffer = self.buffer.read(cx).read(cx);
6092 for selection in selections {
6093 for row in selection.start.row..selection.end.row {
6094 let cursor = Point::new(row, buffer.line_len(row));
6095 new_selection_ranges.push(cursor..cursor);
6096 }
6097 new_selection_ranges.push(selection.end..selection.end);
6098 to_unfold.push(selection.start..selection.end);
6099 }
6100 }
6101 self.unfold_ranges(to_unfold, true, true, cx);
6102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6103 s.select_ranges(new_selection_ranges);
6104 });
6105 }
6106
6107 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6108 self.add_selection(true, cx);
6109 }
6110
6111 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6112 self.add_selection(false, cx);
6113 }
6114
6115 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6117 let mut selections = self.selections.all::<Point>(cx);
6118 let text_layout_details = self.text_layout_details(cx);
6119 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6120 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6121 let range = oldest_selection.display_range(&display_map).sorted();
6122
6123 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6124 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6125 let positions = start_x.min(end_x)..start_x.max(end_x);
6126
6127 selections.clear();
6128 let mut stack = Vec::new();
6129 for row in range.start.row()..=range.end.row() {
6130 if let Some(selection) = self.selections.build_columnar_selection(
6131 &display_map,
6132 row,
6133 &positions,
6134 oldest_selection.reversed,
6135 &text_layout_details,
6136 ) {
6137 stack.push(selection.id);
6138 selections.push(selection);
6139 }
6140 }
6141
6142 if above {
6143 stack.reverse();
6144 }
6145
6146 AddSelectionsState { above, stack }
6147 });
6148
6149 let last_added_selection = *state.stack.last().unwrap();
6150 let mut new_selections = Vec::new();
6151 if above == state.above {
6152 let end_row = if above {
6153 0
6154 } else {
6155 display_map.max_point().row()
6156 };
6157
6158 'outer: for selection in selections {
6159 if selection.id == last_added_selection {
6160 let range = selection.display_range(&display_map).sorted();
6161 debug_assert_eq!(range.start.row(), range.end.row());
6162 let mut row = range.start.row();
6163 let positions =
6164 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6165 px(start)..px(end)
6166 } else {
6167 let start_x =
6168 display_map.x_for_display_point(range.start, &text_layout_details);
6169 let end_x =
6170 display_map.x_for_display_point(range.end, &text_layout_details);
6171 start_x.min(end_x)..start_x.max(end_x)
6172 };
6173
6174 while row != end_row {
6175 if above {
6176 row -= 1;
6177 } else {
6178 row += 1;
6179 }
6180
6181 if let Some(new_selection) = self.selections.build_columnar_selection(
6182 &display_map,
6183 row,
6184 &positions,
6185 selection.reversed,
6186 &text_layout_details,
6187 ) {
6188 state.stack.push(new_selection.id);
6189 if above {
6190 new_selections.push(new_selection);
6191 new_selections.push(selection);
6192 } else {
6193 new_selections.push(selection);
6194 new_selections.push(new_selection);
6195 }
6196
6197 continue 'outer;
6198 }
6199 }
6200 }
6201
6202 new_selections.push(selection);
6203 }
6204 } else {
6205 new_selections = selections;
6206 new_selections.retain(|s| s.id != last_added_selection);
6207 state.stack.pop();
6208 }
6209
6210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6211 s.select(new_selections);
6212 });
6213 if state.stack.len() > 1 {
6214 self.add_selections_state = Some(state);
6215 }
6216 }
6217
6218 pub fn select_next_match_internal(
6219 &mut self,
6220 display_map: &DisplaySnapshot,
6221 replace_newest: bool,
6222 autoscroll: Option<Autoscroll>,
6223 cx: &mut ViewContext<Self>,
6224 ) -> Result<()> {
6225 fn select_next_match_ranges(
6226 this: &mut Editor,
6227 range: Range<usize>,
6228 replace_newest: bool,
6229 auto_scroll: Option<Autoscroll>,
6230 cx: &mut ViewContext<Editor>,
6231 ) {
6232 this.unfold_ranges([range.clone()], false, true, cx);
6233 this.change_selections(auto_scroll, cx, |s| {
6234 if replace_newest {
6235 s.delete(s.newest_anchor().id);
6236 }
6237 s.insert_range(range.clone());
6238 });
6239 }
6240
6241 let buffer = &display_map.buffer_snapshot;
6242 let mut selections = self.selections.all::<usize>(cx);
6243 if let Some(mut select_next_state) = self.select_next_state.take() {
6244 let query = &select_next_state.query;
6245 if !select_next_state.done {
6246 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6247 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6248 let mut next_selected_range = None;
6249
6250 let bytes_after_last_selection =
6251 buffer.bytes_in_range(last_selection.end..buffer.len());
6252 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6253 let query_matches = query
6254 .stream_find_iter(bytes_after_last_selection)
6255 .map(|result| (last_selection.end, result))
6256 .chain(
6257 query
6258 .stream_find_iter(bytes_before_first_selection)
6259 .map(|result| (0, result)),
6260 );
6261
6262 for (start_offset, query_match) in query_matches {
6263 let query_match = query_match.unwrap(); // can only fail due to I/O
6264 let offset_range =
6265 start_offset + query_match.start()..start_offset + query_match.end();
6266 let display_range = offset_range.start.to_display_point(&display_map)
6267 ..offset_range.end.to_display_point(&display_map);
6268
6269 if !select_next_state.wordwise
6270 || (!movement::is_inside_word(&display_map, display_range.start)
6271 && !movement::is_inside_word(&display_map, display_range.end))
6272 {
6273 // TODO: This is n^2, because we might check all the selections
6274 if selections
6275 .iter()
6276 .find(|selection| selection.range().overlaps(&offset_range))
6277 .is_none()
6278 {
6279 next_selected_range = Some(offset_range);
6280 break;
6281 }
6282 }
6283 }
6284
6285 if let Some(next_selected_range) = next_selected_range {
6286 select_next_match_ranges(
6287 self,
6288 next_selected_range,
6289 replace_newest,
6290 autoscroll,
6291 cx,
6292 );
6293 } else {
6294 select_next_state.done = true;
6295 }
6296 }
6297
6298 self.select_next_state = Some(select_next_state);
6299 } else {
6300 let mut only_carets = true;
6301 let mut same_text_selected = true;
6302 let mut selected_text = None;
6303
6304 let mut selections_iter = selections.iter().peekable();
6305 while let Some(selection) = selections_iter.next() {
6306 if selection.start != selection.end {
6307 only_carets = false;
6308 }
6309
6310 if same_text_selected {
6311 if selected_text.is_none() {
6312 selected_text =
6313 Some(buffer.text_for_range(selection.range()).collect::<String>());
6314 }
6315
6316 if let Some(next_selection) = selections_iter.peek() {
6317 if next_selection.range().len() == selection.range().len() {
6318 let next_selected_text = buffer
6319 .text_for_range(next_selection.range())
6320 .collect::<String>();
6321 if Some(next_selected_text) != selected_text {
6322 same_text_selected = false;
6323 selected_text = None;
6324 }
6325 } else {
6326 same_text_selected = false;
6327 selected_text = None;
6328 }
6329 }
6330 }
6331 }
6332
6333 if only_carets {
6334 for selection in &mut selections {
6335 let word_range = movement::surrounding_word(
6336 &display_map,
6337 selection.start.to_display_point(&display_map),
6338 );
6339 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6340 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6341 selection.goal = SelectionGoal::None;
6342 selection.reversed = false;
6343 select_next_match_ranges(
6344 self,
6345 selection.start..selection.end,
6346 replace_newest,
6347 autoscroll,
6348 cx,
6349 );
6350 }
6351
6352 if selections.len() == 1 {
6353 let selection = selections
6354 .last()
6355 .expect("ensured that there's only one selection");
6356 let query = buffer
6357 .text_for_range(selection.start..selection.end)
6358 .collect::<String>();
6359 let is_empty = query.is_empty();
6360 let select_state = SelectNextState {
6361 query: AhoCorasick::new(&[query])?,
6362 wordwise: true,
6363 done: is_empty,
6364 };
6365 self.select_next_state = Some(select_state);
6366 } else {
6367 self.select_next_state = None;
6368 }
6369 } else if let Some(selected_text) = selected_text {
6370 self.select_next_state = Some(SelectNextState {
6371 query: AhoCorasick::new(&[selected_text])?,
6372 wordwise: false,
6373 done: false,
6374 });
6375 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6376 }
6377 }
6378 Ok(())
6379 }
6380
6381 pub fn select_all_matches(
6382 &mut self,
6383 _action: &SelectAllMatches,
6384 cx: &mut ViewContext<Self>,
6385 ) -> Result<()> {
6386 self.push_to_selection_history();
6387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6388
6389 self.select_next_match_internal(&display_map, false, None, cx)?;
6390 let Some(select_next_state) = self.select_next_state.as_mut() else {
6391 return Ok(());
6392 };
6393 if select_next_state.done {
6394 return Ok(());
6395 }
6396
6397 let mut new_selections = self.selections.all::<usize>(cx);
6398
6399 let buffer = &display_map.buffer_snapshot;
6400 let query_matches = select_next_state
6401 .query
6402 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6403
6404 for query_match in query_matches {
6405 let query_match = query_match.unwrap(); // can only fail due to I/O
6406 let offset_range = query_match.start()..query_match.end();
6407 let display_range = offset_range.start.to_display_point(&display_map)
6408 ..offset_range.end.to_display_point(&display_map);
6409
6410 if !select_next_state.wordwise
6411 || (!movement::is_inside_word(&display_map, display_range.start)
6412 && !movement::is_inside_word(&display_map, display_range.end))
6413 {
6414 self.selections.change_with(cx, |selections| {
6415 new_selections.push(Selection {
6416 id: selections.new_selection_id(),
6417 start: offset_range.start,
6418 end: offset_range.end,
6419 reversed: false,
6420 goal: SelectionGoal::None,
6421 });
6422 });
6423 }
6424 }
6425
6426 new_selections.sort_by_key(|selection| selection.start);
6427 let mut ix = 0;
6428 while ix + 1 < new_selections.len() {
6429 let current_selection = &new_selections[ix];
6430 let next_selection = &new_selections[ix + 1];
6431 if current_selection.range().overlaps(&next_selection.range()) {
6432 if current_selection.id < next_selection.id {
6433 new_selections.remove(ix + 1);
6434 } else {
6435 new_selections.remove(ix);
6436 }
6437 } else {
6438 ix += 1;
6439 }
6440 }
6441
6442 select_next_state.done = true;
6443 self.unfold_ranges(
6444 new_selections.iter().map(|selection| selection.range()),
6445 false,
6446 false,
6447 cx,
6448 );
6449 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6450 selections.select(new_selections)
6451 });
6452
6453 Ok(())
6454 }
6455
6456 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6457 self.push_to_selection_history();
6458 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6459 self.select_next_match_internal(
6460 &display_map,
6461 action.replace_newest,
6462 Some(Autoscroll::newest()),
6463 cx,
6464 )?;
6465 Ok(())
6466 }
6467
6468 pub fn select_previous(
6469 &mut self,
6470 action: &SelectPrevious,
6471 cx: &mut ViewContext<Self>,
6472 ) -> Result<()> {
6473 self.push_to_selection_history();
6474 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6475 let buffer = &display_map.buffer_snapshot;
6476 let mut selections = self.selections.all::<usize>(cx);
6477 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6478 let query = &select_prev_state.query;
6479 if !select_prev_state.done {
6480 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6481 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6482 let mut next_selected_range = None;
6483 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6484 let bytes_before_last_selection =
6485 buffer.reversed_bytes_in_range(0..last_selection.start);
6486 let bytes_after_first_selection =
6487 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6488 let query_matches = query
6489 .stream_find_iter(bytes_before_last_selection)
6490 .map(|result| (last_selection.start, result))
6491 .chain(
6492 query
6493 .stream_find_iter(bytes_after_first_selection)
6494 .map(|result| (buffer.len(), result)),
6495 );
6496 for (end_offset, query_match) in query_matches {
6497 let query_match = query_match.unwrap(); // can only fail due to I/O
6498 let offset_range =
6499 end_offset - query_match.end()..end_offset - query_match.start();
6500 let display_range = offset_range.start.to_display_point(&display_map)
6501 ..offset_range.end.to_display_point(&display_map);
6502
6503 if !select_prev_state.wordwise
6504 || (!movement::is_inside_word(&display_map, display_range.start)
6505 && !movement::is_inside_word(&display_map, display_range.end))
6506 {
6507 next_selected_range = Some(offset_range);
6508 break;
6509 }
6510 }
6511
6512 if let Some(next_selected_range) = next_selected_range {
6513 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6514 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6515 if action.replace_newest {
6516 s.delete(s.newest_anchor().id);
6517 }
6518 s.insert_range(next_selected_range);
6519 });
6520 } else {
6521 select_prev_state.done = true;
6522 }
6523 }
6524
6525 self.select_prev_state = Some(select_prev_state);
6526 } else {
6527 let mut only_carets = true;
6528 let mut same_text_selected = true;
6529 let mut selected_text = None;
6530
6531 let mut selections_iter = selections.iter().peekable();
6532 while let Some(selection) = selections_iter.next() {
6533 if selection.start != selection.end {
6534 only_carets = false;
6535 }
6536
6537 if same_text_selected {
6538 if selected_text.is_none() {
6539 selected_text =
6540 Some(buffer.text_for_range(selection.range()).collect::<String>());
6541 }
6542
6543 if let Some(next_selection) = selections_iter.peek() {
6544 if next_selection.range().len() == selection.range().len() {
6545 let next_selected_text = buffer
6546 .text_for_range(next_selection.range())
6547 .collect::<String>();
6548 if Some(next_selected_text) != selected_text {
6549 same_text_selected = false;
6550 selected_text = None;
6551 }
6552 } else {
6553 same_text_selected = false;
6554 selected_text = None;
6555 }
6556 }
6557 }
6558 }
6559
6560 if only_carets {
6561 for selection in &mut selections {
6562 let word_range = movement::surrounding_word(
6563 &display_map,
6564 selection.start.to_display_point(&display_map),
6565 );
6566 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6567 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6568 selection.goal = SelectionGoal::None;
6569 selection.reversed = false;
6570 }
6571 if selections.len() == 1 {
6572 let selection = selections
6573 .last()
6574 .expect("ensured that there's only one selection");
6575 let query = buffer
6576 .text_for_range(selection.start..selection.end)
6577 .collect::<String>();
6578 let is_empty = query.is_empty();
6579 let select_state = SelectNextState {
6580 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6581 wordwise: true,
6582 done: is_empty,
6583 };
6584 self.select_prev_state = Some(select_state);
6585 } else {
6586 self.select_prev_state = None;
6587 }
6588
6589 self.unfold_ranges(
6590 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6591 false,
6592 true,
6593 cx,
6594 );
6595 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6596 s.select(selections);
6597 });
6598 } else if let Some(selected_text) = selected_text {
6599 self.select_prev_state = Some(SelectNextState {
6600 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6601 wordwise: false,
6602 done: false,
6603 });
6604 self.select_previous(action, cx)?;
6605 }
6606 }
6607 Ok(())
6608 }
6609
6610 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6611 let text_layout_details = &self.text_layout_details(cx);
6612 self.transact(cx, |this, cx| {
6613 let mut selections = this.selections.all::<Point>(cx);
6614 let mut edits = Vec::new();
6615 let mut selection_edit_ranges = Vec::new();
6616 let mut last_toggled_row = None;
6617 let snapshot = this.buffer.read(cx).read(cx);
6618 let empty_str: Arc<str> = "".into();
6619 let mut suffixes_inserted = Vec::new();
6620
6621 fn comment_prefix_range(
6622 snapshot: &MultiBufferSnapshot,
6623 row: u32,
6624 comment_prefix: &str,
6625 comment_prefix_whitespace: &str,
6626 ) -> Range<Point> {
6627 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6628
6629 let mut line_bytes = snapshot
6630 .bytes_in_range(start..snapshot.max_point())
6631 .flatten()
6632 .copied();
6633
6634 // If this line currently begins with the line comment prefix, then record
6635 // the range containing the prefix.
6636 if line_bytes
6637 .by_ref()
6638 .take(comment_prefix.len())
6639 .eq(comment_prefix.bytes())
6640 {
6641 // Include any whitespace that matches the comment prefix.
6642 let matching_whitespace_len = line_bytes
6643 .zip(comment_prefix_whitespace.bytes())
6644 .take_while(|(a, b)| a == b)
6645 .count() as u32;
6646 let end = Point::new(
6647 start.row,
6648 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6649 );
6650 start..end
6651 } else {
6652 start..start
6653 }
6654 }
6655
6656 fn comment_suffix_range(
6657 snapshot: &MultiBufferSnapshot,
6658 row: u32,
6659 comment_suffix: &str,
6660 comment_suffix_has_leading_space: bool,
6661 ) -> Range<Point> {
6662 let end = Point::new(row, snapshot.line_len(row));
6663 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6664
6665 let mut line_end_bytes = snapshot
6666 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6667 .flatten()
6668 .copied();
6669
6670 let leading_space_len = if suffix_start_column > 0
6671 && line_end_bytes.next() == Some(b' ')
6672 && comment_suffix_has_leading_space
6673 {
6674 1
6675 } else {
6676 0
6677 };
6678
6679 // If this line currently begins with the line comment prefix, then record
6680 // the range containing the prefix.
6681 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6682 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6683 start..end
6684 } else {
6685 end..end
6686 }
6687 }
6688
6689 // TODO: Handle selections that cross excerpts
6690 for selection in &mut selections {
6691 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6692 let language = if let Some(language) =
6693 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6694 {
6695 language
6696 } else {
6697 continue;
6698 };
6699
6700 selection_edit_ranges.clear();
6701
6702 // If multiple selections contain a given row, avoid processing that
6703 // row more than once.
6704 let mut start_row = selection.start.row;
6705 if last_toggled_row == Some(start_row) {
6706 start_row += 1;
6707 }
6708 let end_row =
6709 if selection.end.row > selection.start.row && selection.end.column == 0 {
6710 selection.end.row - 1
6711 } else {
6712 selection.end.row
6713 };
6714 last_toggled_row = Some(end_row);
6715
6716 if start_row > end_row {
6717 continue;
6718 }
6719
6720 // If the language has line comments, toggle those.
6721 if let Some(full_comment_prefix) = language
6722 .line_comment_prefixes()
6723 .and_then(|prefixes| prefixes.first())
6724 {
6725 // Split the comment prefix's trailing whitespace into a separate string,
6726 // as that portion won't be used for detecting if a line is a comment.
6727 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6728 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6729 let mut all_selection_lines_are_comments = true;
6730
6731 for row in start_row..=end_row {
6732 if start_row < end_row && snapshot.is_line_blank(row) {
6733 continue;
6734 }
6735
6736 let prefix_range = comment_prefix_range(
6737 snapshot.deref(),
6738 row,
6739 comment_prefix,
6740 comment_prefix_whitespace,
6741 );
6742 if prefix_range.is_empty() {
6743 all_selection_lines_are_comments = false;
6744 }
6745 selection_edit_ranges.push(prefix_range);
6746 }
6747
6748 if all_selection_lines_are_comments {
6749 edits.extend(
6750 selection_edit_ranges
6751 .iter()
6752 .cloned()
6753 .map(|range| (range, empty_str.clone())),
6754 );
6755 } else {
6756 let min_column = selection_edit_ranges
6757 .iter()
6758 .map(|r| r.start.column)
6759 .min()
6760 .unwrap_or(0);
6761 edits.extend(selection_edit_ranges.iter().map(|range| {
6762 let position = Point::new(range.start.row, min_column);
6763 (position..position, full_comment_prefix.clone())
6764 }));
6765 }
6766 } else if let Some((full_comment_prefix, comment_suffix)) =
6767 language.block_comment_delimiters()
6768 {
6769 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6770 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6771 let prefix_range = comment_prefix_range(
6772 snapshot.deref(),
6773 start_row,
6774 comment_prefix,
6775 comment_prefix_whitespace,
6776 );
6777 let suffix_range = comment_suffix_range(
6778 snapshot.deref(),
6779 end_row,
6780 comment_suffix.trim_start_matches(' '),
6781 comment_suffix.starts_with(' '),
6782 );
6783
6784 if prefix_range.is_empty() || suffix_range.is_empty() {
6785 edits.push((
6786 prefix_range.start..prefix_range.start,
6787 full_comment_prefix.clone(),
6788 ));
6789 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6790 suffixes_inserted.push((end_row, comment_suffix.len()));
6791 } else {
6792 edits.push((prefix_range, empty_str.clone()));
6793 edits.push((suffix_range, empty_str.clone()));
6794 }
6795 } else {
6796 continue;
6797 }
6798 }
6799
6800 drop(snapshot);
6801 this.buffer.update(cx, |buffer, cx| {
6802 buffer.edit(edits, None, cx);
6803 });
6804
6805 // Adjust selections so that they end before any comment suffixes that
6806 // were inserted.
6807 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6808 let mut selections = this.selections.all::<Point>(cx);
6809 let snapshot = this.buffer.read(cx).read(cx);
6810 for selection in &mut selections {
6811 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6812 match row.cmp(&selection.end.row) {
6813 Ordering::Less => {
6814 suffixes_inserted.next();
6815 continue;
6816 }
6817 Ordering::Greater => break,
6818 Ordering::Equal => {
6819 if selection.end.column == snapshot.line_len(row) {
6820 if selection.is_empty() {
6821 selection.start.column -= suffix_len as u32;
6822 }
6823 selection.end.column -= suffix_len as u32;
6824 }
6825 break;
6826 }
6827 }
6828 }
6829 }
6830
6831 drop(snapshot);
6832 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6833
6834 let selections = this.selections.all::<Point>(cx);
6835 let selections_on_single_row = selections.windows(2).all(|selections| {
6836 selections[0].start.row == selections[1].start.row
6837 && selections[0].end.row == selections[1].end.row
6838 && selections[0].start.row == selections[0].end.row
6839 });
6840 let selections_selecting = selections
6841 .iter()
6842 .any(|selection| selection.start != selection.end);
6843 let advance_downwards = action.advance_downwards
6844 && selections_on_single_row
6845 && !selections_selecting
6846 && this.mode != EditorMode::SingleLine;
6847
6848 if advance_downwards {
6849 let snapshot = this.buffer.read(cx).snapshot(cx);
6850
6851 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6852 s.move_cursors_with(|display_snapshot, display_point, _| {
6853 let mut point = display_point.to_point(display_snapshot);
6854 point.row += 1;
6855 point = snapshot.clip_point(point, Bias::Left);
6856 let display_point = point.to_display_point(display_snapshot);
6857 let goal = SelectionGoal::HorizontalPosition(
6858 display_snapshot
6859 .x_for_display_point(display_point, &text_layout_details)
6860 .into(),
6861 );
6862 (display_point, goal)
6863 })
6864 });
6865 }
6866 });
6867 }
6868
6869 pub fn select_larger_syntax_node(
6870 &mut self,
6871 _: &SelectLargerSyntaxNode,
6872 cx: &mut ViewContext<Self>,
6873 ) {
6874 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6875 let buffer = self.buffer.read(cx).snapshot(cx);
6876 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6877
6878 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6879 let mut selected_larger_node = false;
6880 let new_selections = old_selections
6881 .iter()
6882 .map(|selection| {
6883 let old_range = selection.start..selection.end;
6884 let mut new_range = old_range.clone();
6885 while let Some(containing_range) =
6886 buffer.range_for_syntax_ancestor(new_range.clone())
6887 {
6888 new_range = containing_range;
6889 if !display_map.intersects_fold(new_range.start)
6890 && !display_map.intersects_fold(new_range.end)
6891 {
6892 break;
6893 }
6894 }
6895
6896 selected_larger_node |= new_range != old_range;
6897 Selection {
6898 id: selection.id,
6899 start: new_range.start,
6900 end: new_range.end,
6901 goal: SelectionGoal::None,
6902 reversed: selection.reversed,
6903 }
6904 })
6905 .collect::<Vec<_>>();
6906
6907 if selected_larger_node {
6908 stack.push(old_selections);
6909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6910 s.select(new_selections);
6911 });
6912 }
6913 self.select_larger_syntax_node_stack = stack;
6914 }
6915
6916 pub fn select_smaller_syntax_node(
6917 &mut self,
6918 _: &SelectSmallerSyntaxNode,
6919 cx: &mut ViewContext<Self>,
6920 ) {
6921 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6922 if let Some(selections) = stack.pop() {
6923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6924 s.select(selections.to_vec());
6925 });
6926 }
6927 self.select_larger_syntax_node_stack = stack;
6928 }
6929
6930 pub fn move_to_enclosing_bracket(
6931 &mut self,
6932 _: &MoveToEnclosingBracket,
6933 cx: &mut ViewContext<Self>,
6934 ) {
6935 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6936 s.move_offsets_with(|snapshot, selection| {
6937 let Some(enclosing_bracket_ranges) =
6938 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6939 else {
6940 return;
6941 };
6942
6943 let mut best_length = usize::MAX;
6944 let mut best_inside = false;
6945 let mut best_in_bracket_range = false;
6946 let mut best_destination = None;
6947 for (open, close) in enclosing_bracket_ranges {
6948 let close = close.to_inclusive();
6949 let length = close.end() - open.start;
6950 let inside = selection.start >= open.end && selection.end <= *close.start();
6951 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6952 || close.contains(&selection.head());
6953
6954 // If best is next to a bracket and current isn't, skip
6955 if !in_bracket_range && best_in_bracket_range {
6956 continue;
6957 }
6958
6959 // Prefer smaller lengths unless best is inside and current isn't
6960 if length > best_length && (best_inside || !inside) {
6961 continue;
6962 }
6963
6964 best_length = length;
6965 best_inside = inside;
6966 best_in_bracket_range = in_bracket_range;
6967 best_destination = Some(
6968 if close.contains(&selection.start) && close.contains(&selection.end) {
6969 if inside {
6970 open.end
6971 } else {
6972 open.start
6973 }
6974 } else {
6975 if inside {
6976 *close.start()
6977 } else {
6978 *close.end()
6979 }
6980 },
6981 );
6982 }
6983
6984 if let Some(destination) = best_destination {
6985 selection.collapse_to(destination, SelectionGoal::None);
6986 }
6987 })
6988 });
6989 }
6990
6991 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
6992 self.end_selection(cx);
6993 self.selection_history.mode = SelectionHistoryMode::Undoing;
6994 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
6995 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
6996 self.select_next_state = entry.select_next_state;
6997 self.select_prev_state = entry.select_prev_state;
6998 self.add_selections_state = entry.add_selections_state;
6999 self.request_autoscroll(Autoscroll::newest(), cx);
7000 }
7001 self.selection_history.mode = SelectionHistoryMode::Normal;
7002 }
7003
7004 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7005 self.end_selection(cx);
7006 self.selection_history.mode = SelectionHistoryMode::Redoing;
7007 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7008 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7009 self.select_next_state = entry.select_next_state;
7010 self.select_prev_state = entry.select_prev_state;
7011 self.add_selections_state = entry.add_selections_state;
7012 self.request_autoscroll(Autoscroll::newest(), cx);
7013 }
7014 self.selection_history.mode = SelectionHistoryMode::Normal;
7015 }
7016
7017 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7018 self.go_to_diagnostic_impl(Direction::Next, cx)
7019 }
7020
7021 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7022 self.go_to_diagnostic_impl(Direction::Prev, cx)
7023 }
7024
7025 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7026 let buffer = self.buffer.read(cx).snapshot(cx);
7027 let selection = self.selections.newest::<usize>(cx);
7028
7029 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7030 if direction == Direction::Next {
7031 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7032 let (group_id, jump_to) = popover.activation_info();
7033 if self.activate_diagnostics(group_id, cx) {
7034 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7035 let mut new_selection = s.newest_anchor().clone();
7036 new_selection.collapse_to(jump_to, SelectionGoal::None);
7037 s.select_anchors(vec![new_selection.clone()]);
7038 });
7039 }
7040 return;
7041 }
7042 }
7043
7044 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7045 active_diagnostics
7046 .primary_range
7047 .to_offset(&buffer)
7048 .to_inclusive()
7049 });
7050 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7051 if active_primary_range.contains(&selection.head()) {
7052 *active_primary_range.end()
7053 } else {
7054 selection.head()
7055 }
7056 } else {
7057 selection.head()
7058 };
7059
7060 loop {
7061 let mut diagnostics = if direction == Direction::Prev {
7062 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7063 } else {
7064 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7065 };
7066 let group = diagnostics.find_map(|entry| {
7067 if entry.diagnostic.is_primary
7068 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7069 && !entry.range.is_empty()
7070 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7071 && !entry.range.contains(&search_start)
7072 {
7073 Some((entry.range, entry.diagnostic.group_id))
7074 } else {
7075 None
7076 }
7077 });
7078
7079 if let Some((primary_range, group_id)) = group {
7080 if self.activate_diagnostics(group_id, cx) {
7081 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7082 s.select(vec![Selection {
7083 id: selection.id,
7084 start: primary_range.start,
7085 end: primary_range.start,
7086 reversed: false,
7087 goal: SelectionGoal::None,
7088 }]);
7089 });
7090 }
7091 break;
7092 } else {
7093 // Cycle around to the start of the buffer, potentially moving back to the start of
7094 // the currently active diagnostic.
7095 active_primary_range.take();
7096 if direction == Direction::Prev {
7097 if search_start == buffer.len() {
7098 break;
7099 } else {
7100 search_start = buffer.len();
7101 }
7102 } else if search_start == 0 {
7103 break;
7104 } else {
7105 search_start = 0;
7106 }
7107 }
7108 }
7109 }
7110
7111 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7112 let snapshot = self
7113 .display_map
7114 .update(cx, |display_map, cx| display_map.snapshot(cx));
7115 let selection = self.selections.newest::<Point>(cx);
7116
7117 if !self.seek_in_direction(
7118 &snapshot,
7119 selection.head(),
7120 false,
7121 snapshot
7122 .buffer_snapshot
7123 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7124 cx,
7125 ) {
7126 let wrapped_point = Point::zero();
7127 self.seek_in_direction(
7128 &snapshot,
7129 wrapped_point,
7130 true,
7131 snapshot
7132 .buffer_snapshot
7133 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7134 cx,
7135 );
7136 }
7137 }
7138
7139 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7140 let snapshot = self
7141 .display_map
7142 .update(cx, |display_map, cx| display_map.snapshot(cx));
7143 let selection = self.selections.newest::<Point>(cx);
7144
7145 if !self.seek_in_direction(
7146 &snapshot,
7147 selection.head(),
7148 false,
7149 snapshot
7150 .buffer_snapshot
7151 .git_diff_hunks_in_range_rev(0..selection.head().row),
7152 cx,
7153 ) {
7154 let wrapped_point = snapshot.buffer_snapshot.max_point();
7155 self.seek_in_direction(
7156 &snapshot,
7157 wrapped_point,
7158 true,
7159 snapshot
7160 .buffer_snapshot
7161 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7162 cx,
7163 );
7164 }
7165 }
7166
7167 fn seek_in_direction(
7168 &mut self,
7169 snapshot: &DisplaySnapshot,
7170 initial_point: Point,
7171 is_wrapped: bool,
7172 hunks: impl Iterator<Item = DiffHunk<u32>>,
7173 cx: &mut ViewContext<Editor>,
7174 ) -> bool {
7175 let display_point = initial_point.to_display_point(snapshot);
7176 let mut hunks = hunks
7177 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7178 .filter(|hunk| {
7179 if is_wrapped {
7180 true
7181 } else {
7182 !hunk.contains_display_row(display_point.row())
7183 }
7184 })
7185 .dedup();
7186
7187 if let Some(hunk) = hunks.next() {
7188 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7189 let row = hunk.start_display_row();
7190 let point = DisplayPoint::new(row, 0);
7191 s.select_display_ranges([point..point]);
7192 });
7193
7194 true
7195 } else {
7196 false
7197 }
7198 }
7199
7200 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7201 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7202 }
7203
7204 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7205 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7206 }
7207
7208 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7209 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7210 }
7211
7212 pub fn go_to_type_definition_split(
7213 &mut self,
7214 _: &GoToTypeDefinitionSplit,
7215 cx: &mut ViewContext<Self>,
7216 ) {
7217 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7218 }
7219
7220 fn go_to_definition_of_kind(
7221 &mut self,
7222 kind: GotoDefinitionKind,
7223 split: bool,
7224 cx: &mut ViewContext<Self>,
7225 ) {
7226 let Some(workspace) = self.workspace() else {
7227 return;
7228 };
7229 let buffer = self.buffer.read(cx);
7230 let head = self.selections.newest::<usize>(cx).head();
7231 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7232 text_anchor
7233 } else {
7234 return;
7235 };
7236
7237 let project = workspace.read(cx).project().clone();
7238 let definitions = project.update(cx, |project, cx| match kind {
7239 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7240 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7241 });
7242
7243 cx.spawn(|editor, mut cx| async move {
7244 let definitions = definitions.await?;
7245 editor.update(&mut cx, |editor, cx| {
7246 editor.navigate_to_definitions(
7247 definitions
7248 .into_iter()
7249 .map(GoToDefinitionLink::Text)
7250 .collect(),
7251 split,
7252 cx,
7253 );
7254 })?;
7255 Ok::<(), anyhow::Error>(())
7256 })
7257 .detach_and_log_err(cx);
7258 }
7259
7260 pub fn navigate_to_definitions(
7261 &mut self,
7262 mut definitions: Vec<GoToDefinitionLink>,
7263 split: bool,
7264 cx: &mut ViewContext<Editor>,
7265 ) {
7266 let Some(workspace) = self.workspace() else {
7267 return;
7268 };
7269 let pane = workspace.read(cx).active_pane().clone();
7270 // If there is one definition, just open it directly
7271 if definitions.len() == 1 {
7272 let definition = definitions.pop().unwrap();
7273 let target_task = match definition {
7274 GoToDefinitionLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7275 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7276 self.compute_target_location(lsp_location, server_id, cx)
7277 }
7278 };
7279 cx.spawn(|editor, mut cx| async move {
7280 let target = target_task.await.context("target resolution task")?;
7281 if let Some(target) = target {
7282 editor.update(&mut cx, |editor, cx| {
7283 let range = target.range.to_offset(target.buffer.read(cx));
7284 let range = editor.range_for_match(&range);
7285 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7286 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7287 s.select_ranges([range]);
7288 });
7289 } else {
7290 cx.window_context().defer(move |cx| {
7291 let target_editor: View<Self> =
7292 workspace.update(cx, |workspace, cx| {
7293 if split {
7294 workspace.split_project_item(target.buffer.clone(), cx)
7295 } else {
7296 workspace.open_project_item(target.buffer.clone(), cx)
7297 }
7298 });
7299 target_editor.update(cx, |target_editor, cx| {
7300 // When selecting a definition in a different buffer, disable the nav history
7301 // to avoid creating a history entry at the previous cursor location.
7302 pane.update(cx, |pane, _| pane.disable_history());
7303 target_editor.change_selections(
7304 Some(Autoscroll::fit()),
7305 cx,
7306 |s| {
7307 s.select_ranges([range]);
7308 },
7309 );
7310 pane.update(cx, |pane, _| pane.enable_history());
7311 });
7312 });
7313 }
7314 })
7315 } else {
7316 Ok(())
7317 }
7318 })
7319 .detach_and_log_err(cx);
7320 } else if !definitions.is_empty() {
7321 let replica_id = self.replica_id(cx);
7322 cx.spawn(|editor, mut cx| async move {
7323 let (title, location_tasks) = editor
7324 .update(&mut cx, |editor, cx| {
7325 let title = definitions
7326 .iter()
7327 .find_map(|definition| match definition {
7328 GoToDefinitionLink::Text(link) => {
7329 link.origin.as_ref().map(|origin| {
7330 let buffer = origin.buffer.read(cx);
7331 format!(
7332 "Definitions for {}",
7333 buffer
7334 .text_for_range(origin.range.clone())
7335 .collect::<String>()
7336 )
7337 })
7338 }
7339 GoToDefinitionLink::InlayHint(_, _) => None,
7340 })
7341 .unwrap_or("Definitions".to_string());
7342 let location_tasks = definitions
7343 .into_iter()
7344 .map(|definition| match definition {
7345 GoToDefinitionLink::Text(link) => {
7346 Task::Ready(Some(Ok(Some(link.target))))
7347 }
7348 GoToDefinitionLink::InlayHint(lsp_location, server_id) => {
7349 editor.compute_target_location(lsp_location, server_id, cx)
7350 }
7351 })
7352 .collect::<Vec<_>>();
7353 (title, location_tasks)
7354 })
7355 .context("location tasks preparation")?;
7356
7357 let locations = futures::future::join_all(location_tasks)
7358 .await
7359 .into_iter()
7360 .filter_map(|location| location.transpose())
7361 .collect::<Result<_>>()
7362 .context("location tasks")?;
7363 workspace
7364 .update(&mut cx, |workspace, cx| {
7365 Self::open_locations_in_multibuffer(
7366 workspace, locations, replica_id, title, split, cx,
7367 )
7368 })
7369 .ok();
7370
7371 anyhow::Ok(())
7372 })
7373 .detach_and_log_err(cx);
7374 }
7375 }
7376
7377 fn compute_target_location(
7378 &self,
7379 lsp_location: lsp::Location,
7380 server_id: LanguageServerId,
7381 cx: &mut ViewContext<Editor>,
7382 ) -> Task<anyhow::Result<Option<Location>>> {
7383 let Some(project) = self.project.clone() else {
7384 return Task::Ready(Some(Ok(None)));
7385 };
7386
7387 cx.spawn(move |editor, mut cx| async move {
7388 let location_task = editor.update(&mut cx, |editor, cx| {
7389 project.update(cx, |project, cx| {
7390 let language_server_name =
7391 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7392 project
7393 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7394 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7395 });
7396 language_server_name.map(|language_server_name| {
7397 project.open_local_buffer_via_lsp(
7398 lsp_location.uri.clone(),
7399 server_id,
7400 language_server_name,
7401 cx,
7402 )
7403 })
7404 })
7405 })?;
7406 let location = match location_task {
7407 Some(task) => Some({
7408 let target_buffer_handle = task.await.context("open local buffer")?;
7409 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7410 let target_start = target_buffer
7411 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7412 let target_end = target_buffer
7413 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7414 target_buffer.anchor_after(target_start)
7415 ..target_buffer.anchor_before(target_end)
7416 })?;
7417 Location {
7418 buffer: target_buffer_handle,
7419 range,
7420 }
7421 }),
7422 None => None,
7423 };
7424 Ok(location)
7425 })
7426 }
7427
7428 pub fn find_all_references(
7429 &mut self,
7430 _: &FindAllReferences,
7431 cx: &mut ViewContext<Self>,
7432 ) -> Option<Task<Result<()>>> {
7433 let buffer = self.buffer.read(cx);
7434 let head = self.selections.newest::<usize>(cx).head();
7435 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7436 let replica_id = self.replica_id(cx);
7437
7438 let workspace = self.workspace()?;
7439 let project = workspace.read(cx).project().clone();
7440 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7441 Some(cx.spawn(|_, mut cx| async move {
7442 let locations = references.await?;
7443 if locations.is_empty() {
7444 return Ok(());
7445 }
7446
7447 workspace.update(&mut cx, |workspace, cx| {
7448 let title = locations
7449 .first()
7450 .as_ref()
7451 .map(|location| {
7452 let buffer = location.buffer.read(cx);
7453 format!(
7454 "References to `{}`",
7455 buffer
7456 .text_for_range(location.range.clone())
7457 .collect::<String>()
7458 )
7459 })
7460 .unwrap();
7461 Self::open_locations_in_multibuffer(
7462 workspace, locations, replica_id, title, false, cx,
7463 );
7464 })?;
7465
7466 Ok(())
7467 }))
7468 }
7469
7470 /// Opens a multibuffer with the given project locations in it
7471 pub fn open_locations_in_multibuffer(
7472 workspace: &mut Workspace,
7473 mut locations: Vec<Location>,
7474 replica_id: ReplicaId,
7475 title: String,
7476 split: bool,
7477 cx: &mut ViewContext<Workspace>,
7478 ) {
7479 // If there are multiple definitions, open them in a multibuffer
7480 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7481 let mut locations = locations.into_iter().peekable();
7482 let mut ranges_to_highlight = Vec::new();
7483 let capability = workspace.project().read(cx).capability();
7484
7485 let excerpt_buffer = cx.new_model(|cx| {
7486 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7487 while let Some(location) = locations.next() {
7488 let buffer = location.buffer.read(cx);
7489 let mut ranges_for_buffer = Vec::new();
7490 let range = location.range.to_offset(buffer);
7491 ranges_for_buffer.push(range.clone());
7492
7493 while let Some(next_location) = locations.peek() {
7494 if next_location.buffer == location.buffer {
7495 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7496 locations.next();
7497 } else {
7498 break;
7499 }
7500 }
7501
7502 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7503 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7504 location.buffer.clone(),
7505 ranges_for_buffer,
7506 1,
7507 cx,
7508 ))
7509 }
7510
7511 multibuffer.with_title(title)
7512 });
7513
7514 let editor = cx.new_view(|cx| {
7515 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7516 });
7517 editor.update(cx, |editor, cx| {
7518 editor.highlight_background::<Self>(
7519 ranges_to_highlight,
7520 |theme| theme.editor_highlighted_line_background,
7521 cx,
7522 );
7523 });
7524 if split {
7525 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7526 } else {
7527 workspace.add_item(Box::new(editor), cx);
7528 }
7529 }
7530
7531 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7532 use language::ToOffset as _;
7533
7534 let project = self.project.clone()?;
7535 let selection = self.selections.newest_anchor().clone();
7536 let (cursor_buffer, cursor_buffer_position) = self
7537 .buffer
7538 .read(cx)
7539 .text_anchor_for_position(selection.head(), cx)?;
7540 let (tail_buffer, _) = self
7541 .buffer
7542 .read(cx)
7543 .text_anchor_for_position(selection.tail(), cx)?;
7544 if tail_buffer != cursor_buffer {
7545 return None;
7546 }
7547
7548 let snapshot = cursor_buffer.read(cx).snapshot();
7549 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7550 let prepare_rename = project.update(cx, |project, cx| {
7551 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7552 });
7553
7554 Some(cx.spawn(|this, mut cx| async move {
7555 let rename_range = if let Some(range) = prepare_rename.await? {
7556 Some(range)
7557 } else {
7558 this.update(&mut cx, |this, cx| {
7559 let buffer = this.buffer.read(cx).snapshot(cx);
7560 let mut buffer_highlights = this
7561 .document_highlights_for_position(selection.head(), &buffer)
7562 .filter(|highlight| {
7563 highlight.start.excerpt_id == selection.head().excerpt_id
7564 && highlight.end.excerpt_id == selection.head().excerpt_id
7565 });
7566 buffer_highlights
7567 .next()
7568 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7569 })?
7570 };
7571 if let Some(rename_range) = rename_range {
7572 let rename_buffer_range = rename_range.to_offset(&snapshot);
7573 let cursor_offset_in_rename_range =
7574 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7575
7576 this.update(&mut cx, |this, cx| {
7577 this.take_rename(false, cx);
7578 let buffer = this.buffer.read(cx).read(cx);
7579 let cursor_offset = selection.head().to_offset(&buffer);
7580 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7581 let rename_end = rename_start + rename_buffer_range.len();
7582 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7583 let mut old_highlight_id = None;
7584 let old_name: Arc<str> = buffer
7585 .chunks(rename_start..rename_end, true)
7586 .map(|chunk| {
7587 if old_highlight_id.is_none() {
7588 old_highlight_id = chunk.syntax_highlight_id;
7589 }
7590 chunk.text
7591 })
7592 .collect::<String>()
7593 .into();
7594
7595 drop(buffer);
7596
7597 // Position the selection in the rename editor so that it matches the current selection.
7598 this.show_local_selections = false;
7599 let rename_editor = cx.new_view(|cx| {
7600 let mut editor = Editor::single_line(cx);
7601 editor.buffer.update(cx, |buffer, cx| {
7602 buffer.edit([(0..0, old_name.clone())], None, cx)
7603 });
7604 editor.select_all(&SelectAll, cx);
7605 editor
7606 });
7607
7608 let ranges = this
7609 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7610 .into_iter()
7611 .flat_map(|(_, ranges)| ranges.into_iter())
7612 .chain(
7613 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7614 .into_iter()
7615 .flat_map(|(_, ranges)| ranges.into_iter()),
7616 )
7617 .collect();
7618
7619 this.highlight_text::<Rename>(
7620 ranges,
7621 HighlightStyle {
7622 fade_out: Some(0.6),
7623 ..Default::default()
7624 },
7625 cx,
7626 );
7627 let rename_focus_handle = rename_editor.focus_handle(cx);
7628 cx.focus(&rename_focus_handle);
7629 let block_id = this.insert_blocks(
7630 [BlockProperties {
7631 style: BlockStyle::Flex,
7632 position: range.start.clone(),
7633 height: 1,
7634 render: Arc::new({
7635 let rename_editor = rename_editor.clone();
7636 move |cx: &mut BlockContext| {
7637 let mut text_style = cx.editor_style.text.clone();
7638 if let Some(highlight_style) = old_highlight_id
7639 .and_then(|h| h.style(&cx.editor_style.syntax))
7640 {
7641 text_style = text_style.highlight(highlight_style);
7642 }
7643 div()
7644 .pl(cx.anchor_x)
7645 .child(EditorElement::new(
7646 &rename_editor,
7647 EditorStyle {
7648 background: cx.theme().system().transparent,
7649 local_player: cx.editor_style.local_player,
7650 text: text_style,
7651 scrollbar_width: cx.editor_style.scrollbar_width,
7652 syntax: cx.editor_style.syntax.clone(),
7653 status: cx.editor_style.status.clone(),
7654 inlays_style: HighlightStyle {
7655 color: Some(cx.theme().status().hint),
7656 font_weight: Some(FontWeight::BOLD),
7657 ..HighlightStyle::default()
7658 },
7659 suggestions_style: HighlightStyle {
7660 color: Some(cx.theme().status().predictive),
7661 ..HighlightStyle::default()
7662 },
7663 },
7664 ))
7665 .into_any_element()
7666 }
7667 }),
7668 disposition: BlockDisposition::Below,
7669 }],
7670 Some(Autoscroll::fit()),
7671 cx,
7672 )[0];
7673 this.pending_rename = Some(RenameState {
7674 range,
7675 old_name,
7676 editor: rename_editor,
7677 block_id,
7678 });
7679 })?;
7680 }
7681
7682 Ok(())
7683 }))
7684 }
7685
7686 pub fn confirm_rename(
7687 &mut self,
7688 _: &ConfirmRename,
7689 cx: &mut ViewContext<Self>,
7690 ) -> Option<Task<Result<()>>> {
7691 let rename = self.take_rename(false, cx)?;
7692 let workspace = self.workspace()?;
7693 let (start_buffer, start) = self
7694 .buffer
7695 .read(cx)
7696 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7697 let (end_buffer, end) = self
7698 .buffer
7699 .read(cx)
7700 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7701 if start_buffer != end_buffer {
7702 return None;
7703 }
7704
7705 let buffer = start_buffer;
7706 let range = start..end;
7707 let old_name = rename.old_name;
7708 let new_name = rename.editor.read(cx).text(cx);
7709
7710 let rename = workspace
7711 .read(cx)
7712 .project()
7713 .clone()
7714 .update(cx, |project, cx| {
7715 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7716 });
7717 let workspace = workspace.downgrade();
7718
7719 Some(cx.spawn(|editor, mut cx| async move {
7720 let project_transaction = rename.await?;
7721 Self::open_project_transaction(
7722 &editor,
7723 workspace,
7724 project_transaction,
7725 format!("Rename: {} → {}", old_name, new_name),
7726 cx.clone(),
7727 )
7728 .await?;
7729
7730 editor.update(&mut cx, |editor, cx| {
7731 editor.refresh_document_highlights(cx);
7732 })?;
7733 Ok(())
7734 }))
7735 }
7736
7737 fn take_rename(
7738 &mut self,
7739 moving_cursor: bool,
7740 cx: &mut ViewContext<Self>,
7741 ) -> Option<RenameState> {
7742 let rename = self.pending_rename.take()?;
7743 if rename.editor.focus_handle(cx).is_focused(cx) {
7744 cx.focus(&self.focus_handle);
7745 }
7746
7747 self.remove_blocks(
7748 [rename.block_id].into_iter().collect(),
7749 Some(Autoscroll::fit()),
7750 cx,
7751 );
7752 self.clear_highlights::<Rename>(cx);
7753 self.show_local_selections = true;
7754
7755 if moving_cursor {
7756 let rename_editor = rename.editor.read(cx);
7757 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7758
7759 // Update the selection to match the position of the selection inside
7760 // the rename editor.
7761 let snapshot = self.buffer.read(cx).read(cx);
7762 let rename_range = rename.range.to_offset(&snapshot);
7763 let cursor_in_editor = snapshot
7764 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7765 .min(rename_range.end);
7766 drop(snapshot);
7767
7768 self.change_selections(None, cx, |s| {
7769 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7770 });
7771 } else {
7772 self.refresh_document_highlights(cx);
7773 }
7774
7775 Some(rename)
7776 }
7777
7778 #[cfg(any(test, feature = "test-support"))]
7779 pub fn pending_rename(&self) -> Option<&RenameState> {
7780 self.pending_rename.as_ref()
7781 }
7782
7783 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7784 let project = match &self.project {
7785 Some(project) => project.clone(),
7786 None => return None,
7787 };
7788
7789 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7790 }
7791
7792 fn perform_format(
7793 &mut self,
7794 project: Model<Project>,
7795 trigger: FormatTrigger,
7796 cx: &mut ViewContext<Self>,
7797 ) -> Task<Result<()>> {
7798 let buffer = self.buffer().clone();
7799 let buffers = buffer.read(cx).all_buffers();
7800
7801 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7802 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7803
7804 cx.spawn(|_, mut cx| async move {
7805 let transaction = futures::select_biased! {
7806 _ = timeout => {
7807 log::warn!("timed out waiting for formatting");
7808 None
7809 }
7810 transaction = format.log_err().fuse() => transaction,
7811 };
7812
7813 buffer
7814 .update(&mut cx, |buffer, cx| {
7815 if let Some(transaction) = transaction {
7816 if !buffer.is_singleton() {
7817 buffer.push_transaction(&transaction.0, cx);
7818 }
7819 }
7820
7821 cx.notify();
7822 })
7823 .ok();
7824
7825 Ok(())
7826 })
7827 }
7828
7829 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7830 if let Some(project) = self.project.clone() {
7831 self.buffer.update(cx, |multi_buffer, cx| {
7832 project.update(cx, |project, cx| {
7833 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7834 });
7835 })
7836 }
7837 }
7838
7839 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7840 cx.show_character_palette();
7841 }
7842
7843 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7844 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7845 let buffer = self.buffer.read(cx).snapshot(cx);
7846 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7847 let is_valid = buffer
7848 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7849 .any(|entry| {
7850 entry.diagnostic.is_primary
7851 && !entry.range.is_empty()
7852 && entry.range.start == primary_range_start
7853 && entry.diagnostic.message == active_diagnostics.primary_message
7854 });
7855
7856 if is_valid != active_diagnostics.is_valid {
7857 active_diagnostics.is_valid = is_valid;
7858 let mut new_styles = HashMap::default();
7859 for (block_id, diagnostic) in &active_diagnostics.blocks {
7860 new_styles.insert(
7861 *block_id,
7862 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7863 );
7864 }
7865 self.display_map
7866 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7867 }
7868 }
7869 }
7870
7871 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7872 self.dismiss_diagnostics(cx);
7873 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7874 let buffer = self.buffer.read(cx).snapshot(cx);
7875
7876 let mut primary_range = None;
7877 let mut primary_message = None;
7878 let mut group_end = Point::zero();
7879 let diagnostic_group = buffer
7880 .diagnostic_group::<Point>(group_id)
7881 .map(|entry| {
7882 if entry.range.end > group_end {
7883 group_end = entry.range.end;
7884 }
7885 if entry.diagnostic.is_primary {
7886 primary_range = Some(entry.range.clone());
7887 primary_message = Some(entry.diagnostic.message.clone());
7888 }
7889 entry
7890 })
7891 .collect::<Vec<_>>();
7892 let primary_range = primary_range?;
7893 let primary_message = primary_message?;
7894 let primary_range =
7895 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7896
7897 let blocks = display_map
7898 .insert_blocks(
7899 diagnostic_group.iter().map(|entry| {
7900 let diagnostic = entry.diagnostic.clone();
7901 let message_height = diagnostic.message.lines().count() as u8;
7902 BlockProperties {
7903 style: BlockStyle::Fixed,
7904 position: buffer.anchor_after(entry.range.start),
7905 height: message_height,
7906 render: diagnostic_block_renderer(diagnostic, true),
7907 disposition: BlockDisposition::Below,
7908 }
7909 }),
7910 cx,
7911 )
7912 .into_iter()
7913 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7914 .collect();
7915
7916 Some(ActiveDiagnosticGroup {
7917 primary_range,
7918 primary_message,
7919 blocks,
7920 is_valid: true,
7921 })
7922 });
7923 self.active_diagnostics.is_some()
7924 }
7925
7926 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7927 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7928 self.display_map.update(cx, |display_map, cx| {
7929 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7930 });
7931 cx.notify();
7932 }
7933 }
7934
7935 pub fn set_selections_from_remote(
7936 &mut self,
7937 selections: Vec<Selection<Anchor>>,
7938 pending_selection: Option<Selection<Anchor>>,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 let old_cursor_position = self.selections.newest_anchor().head();
7942 self.selections.change_with(cx, |s| {
7943 s.select_anchors(selections);
7944 if let Some(pending_selection) = pending_selection {
7945 s.set_pending(pending_selection, SelectMode::Character);
7946 } else {
7947 s.clear_pending();
7948 }
7949 });
7950 self.selections_did_change(false, &old_cursor_position, cx);
7951 }
7952
7953 fn push_to_selection_history(&mut self) {
7954 self.selection_history.push(SelectionHistoryEntry {
7955 selections: self.selections.disjoint_anchors(),
7956 select_next_state: self.select_next_state.clone(),
7957 select_prev_state: self.select_prev_state.clone(),
7958 add_selections_state: self.add_selections_state.clone(),
7959 });
7960 }
7961
7962 pub fn transact(
7963 &mut self,
7964 cx: &mut ViewContext<Self>,
7965 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
7966 ) -> Option<TransactionId> {
7967 self.start_transaction_at(Instant::now(), cx);
7968 update(self, cx);
7969 self.end_transaction_at(Instant::now(), cx)
7970 }
7971
7972 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
7973 self.end_selection(cx);
7974 if let Some(tx_id) = self
7975 .buffer
7976 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
7977 {
7978 self.selection_history
7979 .insert_transaction(tx_id, self.selections.disjoint_anchors());
7980 }
7981 }
7982
7983 fn end_transaction_at(
7984 &mut self,
7985 now: Instant,
7986 cx: &mut ViewContext<Self>,
7987 ) -> Option<TransactionId> {
7988 if let Some(tx_id) = self
7989 .buffer
7990 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
7991 {
7992 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
7993 *end_selections = Some(self.selections.disjoint_anchors());
7994 } else {
7995 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
7996 }
7997
7998 cx.emit(EditorEvent::Edited);
7999 Some(tx_id)
8000 } else {
8001 None
8002 }
8003 }
8004
8005 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8006 let mut fold_ranges = Vec::new();
8007
8008 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8009
8010 let selections = self.selections.all_adjusted(cx);
8011 for selection in selections {
8012 let range = selection.range().sorted();
8013 let buffer_start_row = range.start.row;
8014
8015 for row in (0..=range.end.row).rev() {
8016 let fold_range = display_map.foldable_range(row);
8017
8018 if let Some(fold_range) = fold_range {
8019 if fold_range.end.row >= buffer_start_row {
8020 fold_ranges.push(fold_range);
8021 if row <= range.start.row {
8022 break;
8023 }
8024 }
8025 }
8026 }
8027 }
8028
8029 self.fold_ranges(fold_ranges, true, cx);
8030 }
8031
8032 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8033 let buffer_row = fold_at.buffer_row;
8034 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8035
8036 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8037 let autoscroll = self
8038 .selections
8039 .all::<Point>(cx)
8040 .iter()
8041 .any(|selection| fold_range.overlaps(&selection.range()));
8042
8043 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8044 }
8045 }
8046
8047 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8048 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8049 let buffer = &display_map.buffer_snapshot;
8050 let selections = self.selections.all::<Point>(cx);
8051 let ranges = selections
8052 .iter()
8053 .map(|s| {
8054 let range = s.display_range(&display_map).sorted();
8055 let mut start = range.start.to_point(&display_map);
8056 let mut end = range.end.to_point(&display_map);
8057 start.column = 0;
8058 end.column = buffer.line_len(end.row);
8059 start..end
8060 })
8061 .collect::<Vec<_>>();
8062
8063 self.unfold_ranges(ranges, true, true, cx);
8064 }
8065
8066 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8068
8069 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8070 ..Point::new(
8071 unfold_at.buffer_row,
8072 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8073 );
8074
8075 let autoscroll = self
8076 .selections
8077 .all::<Point>(cx)
8078 .iter()
8079 .any(|selection| selection.range().overlaps(&intersection_range));
8080
8081 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8082 }
8083
8084 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8085 let selections = self.selections.all::<Point>(cx);
8086 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8087 let line_mode = self.selections.line_mode;
8088 let ranges = selections.into_iter().map(|s| {
8089 if line_mode {
8090 let start = Point::new(s.start.row, 0);
8091 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8092 start..end
8093 } else {
8094 s.start..s.end
8095 }
8096 });
8097 self.fold_ranges(ranges, true, cx);
8098 }
8099
8100 pub fn fold_ranges<T: ToOffset + Clone>(
8101 &mut self,
8102 ranges: impl IntoIterator<Item = Range<T>>,
8103 auto_scroll: bool,
8104 cx: &mut ViewContext<Self>,
8105 ) {
8106 let mut ranges = ranges.into_iter().peekable();
8107 if ranges.peek().is_some() {
8108 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8109
8110 if auto_scroll {
8111 self.request_autoscroll(Autoscroll::fit(), cx);
8112 }
8113
8114 cx.notify();
8115 }
8116 }
8117
8118 pub fn unfold_ranges<T: ToOffset + Clone>(
8119 &mut self,
8120 ranges: impl IntoIterator<Item = Range<T>>,
8121 inclusive: bool,
8122 auto_scroll: bool,
8123 cx: &mut ViewContext<Self>,
8124 ) {
8125 let mut ranges = ranges.into_iter().peekable();
8126 if ranges.peek().is_some() {
8127 self.display_map
8128 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8129 if auto_scroll {
8130 self.request_autoscroll(Autoscroll::fit(), cx);
8131 }
8132
8133 cx.notify();
8134 }
8135 }
8136
8137 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8138 if hovered != self.gutter_hovered {
8139 self.gutter_hovered = hovered;
8140 cx.notify();
8141 }
8142 }
8143
8144 pub fn insert_blocks(
8145 &mut self,
8146 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8147 autoscroll: Option<Autoscroll>,
8148 cx: &mut ViewContext<Self>,
8149 ) -> Vec<BlockId> {
8150 let blocks = self
8151 .display_map
8152 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8153 if let Some(autoscroll) = autoscroll {
8154 self.request_autoscroll(autoscroll, cx);
8155 }
8156 blocks
8157 }
8158
8159 pub fn replace_blocks(
8160 &mut self,
8161 blocks: HashMap<BlockId, RenderBlock>,
8162 autoscroll: Option<Autoscroll>,
8163 cx: &mut ViewContext<Self>,
8164 ) {
8165 self.display_map
8166 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8167 if let Some(autoscroll) = autoscroll {
8168 self.request_autoscroll(autoscroll, cx);
8169 }
8170 }
8171
8172 pub fn remove_blocks(
8173 &mut self,
8174 block_ids: HashSet<BlockId>,
8175 autoscroll: Option<Autoscroll>,
8176 cx: &mut ViewContext<Self>,
8177 ) {
8178 self.display_map.update(cx, |display_map, cx| {
8179 display_map.remove_blocks(block_ids, cx)
8180 });
8181 if let Some(autoscroll) = autoscroll {
8182 self.request_autoscroll(autoscroll, cx);
8183 }
8184 }
8185
8186 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8187 self.display_map
8188 .update(cx, |map, cx| map.snapshot(cx))
8189 .longest_row()
8190 }
8191
8192 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8193 self.display_map
8194 .update(cx, |map, cx| map.snapshot(cx))
8195 .max_point()
8196 }
8197
8198 pub fn text(&self, cx: &AppContext) -> String {
8199 self.buffer.read(cx).read(cx).text()
8200 }
8201
8202 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8203 let text = self.text(cx);
8204 let text = text.trim();
8205
8206 if text.is_empty() {
8207 return None;
8208 }
8209
8210 Some(text.to_string())
8211 }
8212
8213 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8214 self.transact(cx, |this, cx| {
8215 this.buffer
8216 .read(cx)
8217 .as_singleton()
8218 .expect("you can only call set_text on editors for singleton buffers")
8219 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8220 });
8221 }
8222
8223 pub fn display_text(&self, cx: &mut AppContext) -> String {
8224 self.display_map
8225 .update(cx, |map, cx| map.snapshot(cx))
8226 .text()
8227 }
8228
8229 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8230 let mut wrap_guides = smallvec::smallvec![];
8231
8232 if self.show_wrap_guides == Some(false) {
8233 return wrap_guides;
8234 }
8235
8236 let settings = self.buffer.read(cx).settings_at(0, cx);
8237 if settings.show_wrap_guides {
8238 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8239 wrap_guides.push((soft_wrap as usize, true));
8240 }
8241 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8242 }
8243
8244 wrap_guides
8245 }
8246
8247 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8248 let settings = self.buffer.read(cx).settings_at(0, cx);
8249 let mode = self
8250 .soft_wrap_mode_override
8251 .unwrap_or_else(|| settings.soft_wrap);
8252 match mode {
8253 language_settings::SoftWrap::None => SoftWrap::None,
8254 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8255 language_settings::SoftWrap::PreferredLineLength => {
8256 SoftWrap::Column(settings.preferred_line_length)
8257 }
8258 }
8259 }
8260
8261 pub fn set_soft_wrap_mode(
8262 &mut self,
8263 mode: language_settings::SoftWrap,
8264 cx: &mut ViewContext<Self>,
8265 ) {
8266 self.soft_wrap_mode_override = Some(mode);
8267 cx.notify();
8268 }
8269
8270 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8271 let rem_size = cx.rem_size();
8272 self.display_map.update(cx, |map, cx| {
8273 map.set_font(
8274 style.text.font(),
8275 style.text.font_size.to_pixels(rem_size),
8276 cx,
8277 )
8278 });
8279 self.style = Some(style);
8280 }
8281
8282 #[cfg(any(test, feature = "test-support"))]
8283 pub fn style(&self) -> Option<&EditorStyle> {
8284 self.style.as_ref()
8285 }
8286
8287 // Called by the element. This method is not designed to be called outside of the editor
8288 // element's layout code because it does not notify when rewrapping is computed synchronously.
8289 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8290 self.display_map
8291 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8292 }
8293
8294 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8295 if self.soft_wrap_mode_override.is_some() {
8296 self.soft_wrap_mode_override.take();
8297 } else {
8298 let soft_wrap = match self.soft_wrap_mode(cx) {
8299 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8300 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8301 };
8302 self.soft_wrap_mode_override = Some(soft_wrap);
8303 }
8304 cx.notify();
8305 }
8306
8307 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8308 self.show_gutter = show_gutter;
8309 cx.notify();
8310 }
8311
8312 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8313 self.show_wrap_guides = Some(show_gutter);
8314 cx.notify();
8315 }
8316
8317 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8318 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8319 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8320 cx.reveal_path(&file.abs_path(cx));
8321 }
8322 }
8323 }
8324
8325 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8326 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8327 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8328 if let Some(path) = file.abs_path(cx).to_str() {
8329 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8330 }
8331 }
8332 }
8333 }
8334
8335 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8336 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8337 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8338 if let Some(path) = file.path().to_str() {
8339 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8340 }
8341 }
8342 }
8343 }
8344
8345 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8346 use git::permalink::{build_permalink, BuildPermalinkParams};
8347
8348 let permalink = maybe!({
8349 let project = self.project.clone()?;
8350 let project = project.read(cx);
8351
8352 let worktree = project.visible_worktrees(cx).next()?;
8353
8354 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8355 cwd.push(".git");
8356
8357 let repo = project.fs().open_repo(&cwd)?;
8358 let origin_url = repo.lock().remote_url("origin")?;
8359 let sha = repo.lock().head_sha()?;
8360
8361 let buffer = self.buffer().read(cx).as_singleton()?;
8362 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8363 let path = file.path().to_str().map(|path| path.to_string())?;
8364
8365 let selections = self.selections.all::<Point>(cx);
8366 let selection = selections.iter().peekable().next();
8367
8368 build_permalink(BuildPermalinkParams {
8369 remote_url: &origin_url,
8370 sha: &sha,
8371 path: &path,
8372 selection: selection.map(|selection| selection.range()),
8373 })
8374 .log_err()
8375 });
8376
8377 if let Some(permalink) = permalink {
8378 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8379 }
8380 }
8381
8382 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8383 self.highlighted_rows = rows;
8384 }
8385
8386 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8387 self.highlighted_rows.clone()
8388 }
8389
8390 pub fn highlight_background<T: 'static>(
8391 &mut self,
8392 ranges: Vec<Range<Anchor>>,
8393 color_fetcher: fn(&ThemeColors) -> Hsla,
8394 cx: &mut ViewContext<Self>,
8395 ) {
8396 self.background_highlights
8397 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8398 cx.notify();
8399 }
8400
8401 pub(crate) fn highlight_inlay_background<T: 'static>(
8402 &mut self,
8403 ranges: Vec<InlayHighlight>,
8404 color_fetcher: fn(&ThemeColors) -> Hsla,
8405 cx: &mut ViewContext<Self>,
8406 ) {
8407 // TODO: no actual highlights happen for inlays currently, find a way to do that
8408 self.inlay_background_highlights
8409 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8410 cx.notify();
8411 }
8412
8413 pub fn clear_background_highlights<T: 'static>(
8414 &mut self,
8415 cx: &mut ViewContext<Self>,
8416 ) -> Option<BackgroundHighlight> {
8417 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8418 let inlay_highlights = self
8419 .inlay_background_highlights
8420 .remove(&Some(TypeId::of::<T>()));
8421 if text_highlights.is_some() || inlay_highlights.is_some() {
8422 cx.notify();
8423 }
8424 text_highlights
8425 }
8426
8427 #[cfg(feature = "test-support")]
8428 pub fn all_text_background_highlights(
8429 &mut self,
8430 cx: &mut ViewContext<Self>,
8431 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8432 let snapshot = self.snapshot(cx);
8433 let buffer = &snapshot.buffer_snapshot;
8434 let start = buffer.anchor_before(0);
8435 let end = buffer.anchor_after(buffer.len());
8436 let theme = cx.theme().colors();
8437 self.background_highlights_in_range(start..end, &snapshot, theme)
8438 }
8439
8440 fn document_highlights_for_position<'a>(
8441 &'a self,
8442 position: Anchor,
8443 buffer: &'a MultiBufferSnapshot,
8444 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8445 let read_highlights = self
8446 .background_highlights
8447 .get(&TypeId::of::<DocumentHighlightRead>())
8448 .map(|h| &h.1);
8449 let write_highlights = self
8450 .background_highlights
8451 .get(&TypeId::of::<DocumentHighlightWrite>())
8452 .map(|h| &h.1);
8453 let left_position = position.bias_left(buffer);
8454 let right_position = position.bias_right(buffer);
8455 read_highlights
8456 .into_iter()
8457 .chain(write_highlights)
8458 .flat_map(move |ranges| {
8459 let start_ix = match ranges.binary_search_by(|probe| {
8460 let cmp = probe.end.cmp(&left_position, buffer);
8461 if cmp.is_ge() {
8462 Ordering::Greater
8463 } else {
8464 Ordering::Less
8465 }
8466 }) {
8467 Ok(i) | Err(i) => i,
8468 };
8469
8470 let right_position = right_position.clone();
8471 ranges[start_ix..]
8472 .iter()
8473 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8474 })
8475 }
8476
8477 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8478 self.background_highlights
8479 .get(&TypeId::of::<T>())
8480 .map_or(false, |(_, highlights)| !highlights.is_empty())
8481 }
8482
8483 pub fn background_highlights_in_range(
8484 &self,
8485 search_range: Range<Anchor>,
8486 display_snapshot: &DisplaySnapshot,
8487 theme: &ThemeColors,
8488 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8489 let mut results = Vec::new();
8490 for (color_fetcher, ranges) in self.background_highlights.values() {
8491 let color = color_fetcher(theme);
8492 let start_ix = match ranges.binary_search_by(|probe| {
8493 let cmp = probe
8494 .end
8495 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8496 if cmp.is_gt() {
8497 Ordering::Greater
8498 } else {
8499 Ordering::Less
8500 }
8501 }) {
8502 Ok(i) | Err(i) => i,
8503 };
8504 for range in &ranges[start_ix..] {
8505 if range
8506 .start
8507 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8508 .is_ge()
8509 {
8510 break;
8511 }
8512
8513 let start = range.start.to_display_point(&display_snapshot);
8514 let end = range.end.to_display_point(&display_snapshot);
8515 results.push((start..end, color))
8516 }
8517 }
8518 results
8519 }
8520
8521 pub fn background_highlight_row_ranges<T: 'static>(
8522 &self,
8523 search_range: Range<Anchor>,
8524 display_snapshot: &DisplaySnapshot,
8525 count: usize,
8526 ) -> Vec<RangeInclusive<DisplayPoint>> {
8527 let mut results = Vec::new();
8528 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8529 return vec![];
8530 };
8531
8532 let start_ix = match ranges.binary_search_by(|probe| {
8533 let cmp = probe
8534 .end
8535 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8536 if cmp.is_gt() {
8537 Ordering::Greater
8538 } else {
8539 Ordering::Less
8540 }
8541 }) {
8542 Ok(i) | Err(i) => i,
8543 };
8544 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8545 if let (Some(start_display), Some(end_display)) = (start, end) {
8546 results.push(
8547 start_display.to_display_point(display_snapshot)
8548 ..=end_display.to_display_point(display_snapshot),
8549 );
8550 }
8551 };
8552 let mut start_row: Option<Point> = None;
8553 let mut end_row: Option<Point> = None;
8554 if ranges.len() > count {
8555 return Vec::new();
8556 }
8557 for range in &ranges[start_ix..] {
8558 if range
8559 .start
8560 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8561 .is_ge()
8562 {
8563 break;
8564 }
8565 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8566 if let Some(current_row) = &end_row {
8567 if end.row == current_row.row {
8568 continue;
8569 }
8570 }
8571 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8572 if start_row.is_none() {
8573 assert_eq!(end_row, None);
8574 start_row = Some(start);
8575 end_row = Some(end);
8576 continue;
8577 }
8578 if let Some(current_end) = end_row.as_mut() {
8579 if start.row > current_end.row + 1 {
8580 push_region(start_row, end_row);
8581 start_row = Some(start);
8582 end_row = Some(end);
8583 } else {
8584 // Merge two hunks.
8585 *current_end = end;
8586 }
8587 } else {
8588 unreachable!();
8589 }
8590 }
8591 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8592 push_region(start_row, end_row);
8593 results
8594 }
8595
8596 /// Get the text ranges corresponding to the redaction query
8597 pub fn redacted_ranges(
8598 &self,
8599 search_range: Range<Anchor>,
8600 display_snapshot: &DisplaySnapshot,
8601 cx: &mut ViewContext<Self>,
8602 ) -> Vec<Range<DisplayPoint>> {
8603 display_snapshot
8604 .buffer_snapshot
8605 .redacted_ranges(search_range, |file| {
8606 if let Some(file) = file {
8607 file.is_private()
8608 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8609 .redact_private_values
8610 } else {
8611 false
8612 }
8613 })
8614 .map(|range| {
8615 range.start.to_display_point(display_snapshot)
8616 ..range.end.to_display_point(display_snapshot)
8617 })
8618 .collect()
8619 }
8620
8621 pub fn highlight_text<T: 'static>(
8622 &mut self,
8623 ranges: Vec<Range<Anchor>>,
8624 style: HighlightStyle,
8625 cx: &mut ViewContext<Self>,
8626 ) {
8627 self.display_map.update(cx, |map, _| {
8628 map.highlight_text(TypeId::of::<T>(), ranges, style)
8629 });
8630 cx.notify();
8631 }
8632
8633 pub(crate) fn highlight_inlays<T: 'static>(
8634 &mut self,
8635 highlights: Vec<InlayHighlight>,
8636 style: HighlightStyle,
8637 cx: &mut ViewContext<Self>,
8638 ) {
8639 self.display_map.update(cx, |map, _| {
8640 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8641 });
8642 cx.notify();
8643 }
8644
8645 pub fn text_highlights<'a, T: 'static>(
8646 &'a self,
8647 cx: &'a AppContext,
8648 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8649 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8650 }
8651
8652 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8653 let cleared = self
8654 .display_map
8655 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8656 if cleared {
8657 cx.notify();
8658 }
8659 }
8660
8661 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8662 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8663 && self.focus_handle.is_focused(cx)
8664 }
8665
8666 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8667 cx.notify();
8668 }
8669
8670 fn on_buffer_event(
8671 &mut self,
8672 multibuffer: Model<MultiBuffer>,
8673 event: &multi_buffer::Event,
8674 cx: &mut ViewContext<Self>,
8675 ) {
8676 match event {
8677 multi_buffer::Event::Edited {
8678 singleton_buffer_edited,
8679 } => {
8680 self.refresh_active_diagnostics(cx);
8681 self.refresh_code_actions(cx);
8682 if self.has_active_copilot_suggestion(cx) {
8683 self.update_visible_copilot_suggestion(cx);
8684 }
8685 cx.emit(EditorEvent::BufferEdited);
8686 cx.emit(SearchEvent::MatchesInvalidated);
8687
8688 if *singleton_buffer_edited {
8689 if let Some(project) = &self.project {
8690 let project = project.read(cx);
8691 let languages_affected = multibuffer
8692 .read(cx)
8693 .all_buffers()
8694 .into_iter()
8695 .filter_map(|buffer| {
8696 let buffer = buffer.read(cx);
8697 let language = buffer.language()?;
8698 if project.is_local()
8699 && project.language_servers_for_buffer(buffer, cx).count() == 0
8700 {
8701 None
8702 } else {
8703 Some(language)
8704 }
8705 })
8706 .cloned()
8707 .collect::<HashSet<_>>();
8708 if !languages_affected.is_empty() {
8709 self.refresh_inlay_hints(
8710 InlayHintRefreshReason::BufferEdited(languages_affected),
8711 cx,
8712 );
8713 }
8714 }
8715 }
8716
8717 let Some(project) = &self.project else { return };
8718 let telemetry = project.read(cx).client().telemetry().clone();
8719 telemetry.log_edit_event("editor");
8720 }
8721 multi_buffer::Event::ExcerptsAdded {
8722 buffer,
8723 predecessor,
8724 excerpts,
8725 } => {
8726 cx.emit(EditorEvent::ExcerptsAdded {
8727 buffer: buffer.clone(),
8728 predecessor: *predecessor,
8729 excerpts: excerpts.clone(),
8730 });
8731 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8732 }
8733 multi_buffer::Event::ExcerptsRemoved { ids } => {
8734 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8735 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8736 }
8737 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8738 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8739 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8740 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8741 cx.emit(EditorEvent::TitleChanged)
8742 }
8743 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8744 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8745 multi_buffer::Event::DiagnosticsUpdated => {
8746 self.refresh_active_diagnostics(cx);
8747 }
8748 _ => {}
8749 };
8750 }
8751
8752 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8753 cx.notify();
8754 }
8755
8756 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8757 self.refresh_copilot_suggestions(true, cx);
8758 self.refresh_inlay_hints(
8759 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8760 self.selections.newest_anchor().head(),
8761 &self.buffer.read(cx).snapshot(cx),
8762 cx,
8763 )),
8764 cx,
8765 );
8766 self.scroll_manager.vertical_scroll_margin =
8767 EditorSettings::get_global(cx).vertical_scroll_margin;
8768 cx.notify();
8769 }
8770
8771 pub fn set_searchable(&mut self, searchable: bool) {
8772 self.searchable = searchable;
8773 }
8774
8775 pub fn searchable(&self) -> bool {
8776 self.searchable
8777 }
8778
8779 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8780 let buffer = self.buffer.read(cx);
8781 if buffer.is_singleton() {
8782 cx.propagate();
8783 return;
8784 }
8785
8786 let Some(workspace) = self.workspace() else {
8787 cx.propagate();
8788 return;
8789 };
8790
8791 let mut new_selections_by_buffer = HashMap::default();
8792 for selection in self.selections.all::<usize>(cx) {
8793 for (buffer, mut range, _) in
8794 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8795 {
8796 if selection.reversed {
8797 mem::swap(&mut range.start, &mut range.end);
8798 }
8799 new_selections_by_buffer
8800 .entry(buffer)
8801 .or_insert(Vec::new())
8802 .push(range)
8803 }
8804 }
8805
8806 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8807
8808 // We defer the pane interaction because we ourselves are a workspace item
8809 // and activating a new item causes the pane to call a method on us reentrantly,
8810 // which panics if we're on the stack.
8811 cx.window_context().defer(move |cx| {
8812 workspace.update(cx, |workspace, cx| {
8813 let pane = workspace.active_pane().clone();
8814 pane.update(cx, |pane, _| pane.disable_history());
8815
8816 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8817 let editor = workspace.open_project_item::<Self>(buffer, cx);
8818 editor.update(cx, |editor, cx| {
8819 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8820 s.select_ranges(ranges);
8821 });
8822 });
8823 }
8824
8825 pane.update(cx, |pane, _| pane.enable_history());
8826 })
8827 });
8828 }
8829
8830 fn jump(
8831 &mut self,
8832 path: ProjectPath,
8833 position: Point,
8834 anchor: language::Anchor,
8835 cx: &mut ViewContext<Self>,
8836 ) {
8837 let workspace = self.workspace();
8838 cx.spawn(|_, mut cx| async move {
8839 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8840 let editor = workspace.update(&mut cx, |workspace, cx| {
8841 workspace.open_path(path, None, true, cx)
8842 })?;
8843 let editor = editor
8844 .await?
8845 .downcast::<Editor>()
8846 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8847 .downgrade();
8848 editor.update(&mut cx, |editor, cx| {
8849 let buffer = editor
8850 .buffer()
8851 .read(cx)
8852 .as_singleton()
8853 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8854 let buffer = buffer.read(cx);
8855 let cursor = if buffer.can_resolve(&anchor) {
8856 language::ToPoint::to_point(&anchor, buffer)
8857 } else {
8858 buffer.clip_point(position, Bias::Left)
8859 };
8860
8861 let nav_history = editor.nav_history.take();
8862 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8863 s.select_ranges([cursor..cursor]);
8864 });
8865 editor.nav_history = nav_history;
8866
8867 anyhow::Ok(())
8868 })??;
8869
8870 anyhow::Ok(())
8871 })
8872 .detach_and_log_err(cx);
8873 }
8874
8875 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8876 let snapshot = self.buffer.read(cx).read(cx);
8877 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8878 Some(
8879 ranges
8880 .iter()
8881 .map(move |range| {
8882 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8883 })
8884 .collect(),
8885 )
8886 }
8887
8888 fn selection_replacement_ranges(
8889 &self,
8890 range: Range<OffsetUtf16>,
8891 cx: &AppContext,
8892 ) -> Vec<Range<OffsetUtf16>> {
8893 let selections = self.selections.all::<OffsetUtf16>(cx);
8894 let newest_selection = selections
8895 .iter()
8896 .max_by_key(|selection| selection.id)
8897 .unwrap();
8898 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
8899 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
8900 let snapshot = self.buffer.read(cx).read(cx);
8901 selections
8902 .into_iter()
8903 .map(|mut selection| {
8904 selection.start.0 =
8905 (selection.start.0 as isize).saturating_add(start_delta) as usize;
8906 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
8907 snapshot.clip_offset_utf16(selection.start, Bias::Left)
8908 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
8909 })
8910 .collect()
8911 }
8912
8913 fn report_copilot_event(
8914 &self,
8915 suggestion_id: Option<String>,
8916 suggestion_accepted: bool,
8917 cx: &AppContext,
8918 ) {
8919 let Some(project) = &self.project else { return };
8920
8921 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
8922 let file_extension = self
8923 .buffer
8924 .read(cx)
8925 .as_singleton()
8926 .and_then(|b| b.read(cx).file())
8927 .and_then(|file| Path::new(file.file_name(cx)).extension())
8928 .and_then(|e| e.to_str())
8929 .map(|a| a.to_string());
8930
8931 let telemetry = project.read(cx).client().telemetry().clone();
8932
8933 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
8934 }
8935
8936 #[cfg(any(test, feature = "test-support"))]
8937 fn report_editor_event(
8938 &self,
8939 _operation: &'static str,
8940 _file_extension: Option<String>,
8941 _cx: &AppContext,
8942 ) {
8943 }
8944
8945 #[cfg(not(any(test, feature = "test-support")))]
8946 fn report_editor_event(
8947 &self,
8948 operation: &'static str,
8949 file_extension: Option<String>,
8950 cx: &AppContext,
8951 ) {
8952 let Some(project) = &self.project else { return };
8953
8954 // If None, we are in a file without an extension
8955 let file = self
8956 .buffer
8957 .read(cx)
8958 .as_singleton()
8959 .and_then(|b| b.read(cx).file());
8960 let file_extension = file_extension.or(file
8961 .as_ref()
8962 .and_then(|file| Path::new(file.file_name(cx)).extension())
8963 .and_then(|e| e.to_str())
8964 .map(|a| a.to_string()));
8965
8966 let vim_mode = cx
8967 .global::<SettingsStore>()
8968 .raw_user_settings()
8969 .get("vim_mode")
8970 == Some(&serde_json::Value::Bool(true));
8971 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
8972 let copilot_enabled_for_language = self
8973 .buffer
8974 .read(cx)
8975 .settings_at(0, cx)
8976 .show_copilot_suggestions;
8977
8978 let telemetry = project.read(cx).client().telemetry().clone();
8979 telemetry.report_editor_event(
8980 file_extension,
8981 vim_mode,
8982 operation,
8983 copilot_enabled,
8984 copilot_enabled_for_language,
8985 )
8986 }
8987
8988 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
8989 /// with each line being an array of {text, highlight} objects.
8990 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
8991 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
8992 return;
8993 };
8994
8995 #[derive(Serialize)]
8996 struct Chunk<'a> {
8997 text: String,
8998 highlight: Option<&'a str>,
8999 }
9000
9001 let snapshot = buffer.read(cx).snapshot();
9002 let range = self
9003 .selected_text_range(cx)
9004 .and_then(|selected_range| {
9005 if selected_range.is_empty() {
9006 None
9007 } else {
9008 Some(selected_range)
9009 }
9010 })
9011 .unwrap_or_else(|| 0..snapshot.len());
9012
9013 let chunks = snapshot.chunks(range, true);
9014 let mut lines = Vec::new();
9015 let mut line: VecDeque<Chunk> = VecDeque::new();
9016
9017 let Some(style) = self.style.as_ref() else {
9018 return;
9019 };
9020
9021 for chunk in chunks {
9022 let highlight = chunk
9023 .syntax_highlight_id
9024 .and_then(|id| id.name(&style.syntax));
9025 let mut chunk_lines = chunk.text.split("\n").peekable();
9026 while let Some(text) = chunk_lines.next() {
9027 let mut merged_with_last_token = false;
9028 if let Some(last_token) = line.back_mut() {
9029 if last_token.highlight == highlight {
9030 last_token.text.push_str(text);
9031 merged_with_last_token = true;
9032 }
9033 }
9034
9035 if !merged_with_last_token {
9036 line.push_back(Chunk {
9037 text: text.into(),
9038 highlight,
9039 });
9040 }
9041
9042 if chunk_lines.peek().is_some() {
9043 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9044 line.pop_front();
9045 }
9046 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9047 line.pop_back();
9048 }
9049
9050 lines.push(mem::take(&mut line));
9051 }
9052 }
9053 }
9054
9055 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9056 return;
9057 };
9058 cx.write_to_clipboard(ClipboardItem::new(lines));
9059 }
9060
9061 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9062 &self.inlay_hint_cache
9063 }
9064
9065 pub fn replay_insert_event(
9066 &mut self,
9067 text: &str,
9068 relative_utf16_range: Option<Range<isize>>,
9069 cx: &mut ViewContext<Self>,
9070 ) {
9071 if !self.input_enabled {
9072 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9073 return;
9074 }
9075 if let Some(relative_utf16_range) = relative_utf16_range {
9076 let selections = self.selections.all::<OffsetUtf16>(cx);
9077 self.change_selections(None, cx, |s| {
9078 let new_ranges = selections.into_iter().map(|range| {
9079 let start = OffsetUtf16(
9080 range
9081 .head()
9082 .0
9083 .saturating_add_signed(relative_utf16_range.start),
9084 );
9085 let end = OffsetUtf16(
9086 range
9087 .head()
9088 .0
9089 .saturating_add_signed(relative_utf16_range.end),
9090 );
9091 start..end
9092 });
9093 s.select_ranges(new_ranges);
9094 });
9095 }
9096
9097 self.handle_input(text, cx);
9098 }
9099
9100 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9101 let Some(project) = self.project.as_ref() else {
9102 return false;
9103 };
9104 let project = project.read(cx);
9105
9106 let mut supports = false;
9107 self.buffer().read(cx).for_each_buffer(|buffer| {
9108 if !supports {
9109 supports = project
9110 .language_servers_for_buffer(buffer.read(cx), cx)
9111 .any(
9112 |(_, server)| match server.capabilities().inlay_hint_provider {
9113 Some(lsp::OneOf::Left(enabled)) => enabled,
9114 Some(lsp::OneOf::Right(_)) => true,
9115 None => false,
9116 },
9117 )
9118 }
9119 });
9120 supports
9121 }
9122
9123 pub fn focus(&self, cx: &mut WindowContext) {
9124 cx.focus(&self.focus_handle)
9125 }
9126
9127 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9128 self.focus_handle.is_focused(cx)
9129 }
9130
9131 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9132 cx.emit(EditorEvent::Focused);
9133
9134 if let Some(rename) = self.pending_rename.as_ref() {
9135 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9136 cx.focus(&rename_editor_focus_handle);
9137 } else {
9138 self.blink_manager.update(cx, BlinkManager::enable);
9139 self.show_cursor_names(cx);
9140 self.buffer.update(cx, |buffer, cx| {
9141 buffer.finalize_last_transaction(cx);
9142 if self.leader_peer_id.is_none() {
9143 buffer.set_active_selections(
9144 &self.selections.disjoint_anchors(),
9145 self.selections.line_mode,
9146 self.cursor_shape,
9147 cx,
9148 );
9149 }
9150 });
9151 }
9152 }
9153
9154 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9155 self.blink_manager.update(cx, BlinkManager::disable);
9156 self.buffer
9157 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9158 self.hide_context_menu(cx);
9159 hide_hover(self, cx);
9160 cx.emit(EditorEvent::Blurred);
9161 cx.notify();
9162 }
9163
9164 pub fn register_action<A: Action>(
9165 &mut self,
9166 listener: impl Fn(&A, &mut WindowContext) + 'static,
9167 ) -> &mut Self {
9168 let listener = Arc::new(listener);
9169
9170 self.editor_actions.push(Box::new(move |cx| {
9171 let _view = cx.view().clone();
9172 let cx = cx.window_context();
9173 let listener = listener.clone();
9174 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9175 let action = action.downcast_ref().unwrap();
9176 if phase == DispatchPhase::Bubble {
9177 listener(action, cx)
9178 }
9179 })
9180 }));
9181 self
9182 }
9183}
9184
9185pub trait CollaborationHub {
9186 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9187 fn user_participant_indices<'a>(
9188 &self,
9189 cx: &'a AppContext,
9190 ) -> &'a HashMap<u64, ParticipantIndex>;
9191 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9192}
9193
9194impl CollaborationHub for Model<Project> {
9195 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9196 self.read(cx).collaborators()
9197 }
9198
9199 fn user_participant_indices<'a>(
9200 &self,
9201 cx: &'a AppContext,
9202 ) -> &'a HashMap<u64, ParticipantIndex> {
9203 self.read(cx).user_store().read(cx).participant_indices()
9204 }
9205
9206 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9207 let this = self.read(cx);
9208 let user_ids = this.collaborators().values().map(|c| c.user_id);
9209 this.user_store().read_with(cx, |user_store, cx| {
9210 user_store.participant_names(user_ids, cx)
9211 })
9212 }
9213}
9214
9215pub trait CompletionProvider {
9216 fn completions(
9217 &self,
9218 buffer: &Model<Buffer>,
9219 buffer_position: text::Anchor,
9220 cx: &mut ViewContext<Editor>,
9221 ) -> Task<Result<Vec<Completion>>>;
9222
9223 fn resolve_completions(
9224 &self,
9225 completion_indices: Vec<usize>,
9226 completions: Arc<RwLock<Box<[Completion]>>>,
9227 cx: &mut ViewContext<Editor>,
9228 ) -> Task<Result<bool>>;
9229
9230 fn apply_additional_edits_for_completion(
9231 &self,
9232 buffer: Model<Buffer>,
9233 completion: Completion,
9234 push_to_history: bool,
9235 cx: &mut ViewContext<Editor>,
9236 ) -> Task<Result<Option<language::Transaction>>>;
9237}
9238
9239impl CompletionProvider for Model<Project> {
9240 fn completions(
9241 &self,
9242 buffer: &Model<Buffer>,
9243 buffer_position: text::Anchor,
9244 cx: &mut ViewContext<Editor>,
9245 ) -> Task<Result<Vec<Completion>>> {
9246 self.update(cx, |project, cx| {
9247 project.completions(&buffer, buffer_position, cx)
9248 })
9249 }
9250
9251 fn resolve_completions(
9252 &self,
9253 completion_indices: Vec<usize>,
9254 completions: Arc<RwLock<Box<[Completion]>>>,
9255 cx: &mut ViewContext<Editor>,
9256 ) -> Task<Result<bool>> {
9257 self.update(cx, |project, cx| {
9258 project.resolve_completions(completion_indices, completions, cx)
9259 })
9260 }
9261
9262 fn apply_additional_edits_for_completion(
9263 &self,
9264 buffer: Model<Buffer>,
9265 completion: Completion,
9266 push_to_history: bool,
9267 cx: &mut ViewContext<Editor>,
9268 ) -> Task<Result<Option<language::Transaction>>> {
9269 self.update(cx, |project, cx| {
9270 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9271 })
9272 }
9273}
9274
9275fn inlay_hint_settings(
9276 location: Anchor,
9277 snapshot: &MultiBufferSnapshot,
9278 cx: &mut ViewContext<'_, Editor>,
9279) -> InlayHintSettings {
9280 let file = snapshot.file_at(location);
9281 let language = snapshot.language_at(location);
9282 let settings = all_language_settings(file, cx);
9283 settings
9284 .language(language.map(|l| l.name()).as_deref())
9285 .inlay_hints
9286}
9287
9288fn consume_contiguous_rows(
9289 contiguous_row_selections: &mut Vec<Selection<Point>>,
9290 selection: &Selection<Point>,
9291 display_map: &DisplaySnapshot,
9292 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9293) -> (u32, u32) {
9294 contiguous_row_selections.push(selection.clone());
9295 let start_row = selection.start.row;
9296 let mut end_row = ending_row(selection, display_map);
9297
9298 while let Some(next_selection) = selections.peek() {
9299 if next_selection.start.row <= end_row {
9300 end_row = ending_row(next_selection, display_map);
9301 contiguous_row_selections.push(selections.next().unwrap().clone());
9302 } else {
9303 break;
9304 }
9305 }
9306 (start_row, end_row)
9307}
9308
9309fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9310 if next_selection.end.column > 0 || next_selection.is_empty() {
9311 display_map.next_line_boundary(next_selection.end).0.row + 1
9312 } else {
9313 next_selection.end.row
9314 }
9315}
9316
9317impl EditorSnapshot {
9318 pub fn remote_selections_in_range<'a>(
9319 &'a self,
9320 range: &'a Range<Anchor>,
9321 collaboration_hub: &dyn CollaborationHub,
9322 cx: &'a AppContext,
9323 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9324 let participant_names = collaboration_hub.user_names(cx);
9325 let participant_indices = collaboration_hub.user_participant_indices(cx);
9326 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9327 let collaborators_by_replica_id = collaborators_by_peer_id
9328 .iter()
9329 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9330 .collect::<HashMap<_, _>>();
9331 self.buffer_snapshot
9332 .remote_selections_in_range(range)
9333 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9334 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9335 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9336 let user_name = participant_names.get(&collaborator.user_id).cloned();
9337 Some(RemoteSelection {
9338 replica_id,
9339 selection,
9340 cursor_shape,
9341 line_mode,
9342 participant_index,
9343 peer_id: collaborator.peer_id,
9344 user_name,
9345 })
9346 })
9347 }
9348
9349 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9350 self.display_snapshot.buffer_snapshot.language_at(position)
9351 }
9352
9353 pub fn is_focused(&self) -> bool {
9354 self.is_focused
9355 }
9356
9357 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9358 self.placeholder_text.as_ref()
9359 }
9360
9361 pub fn scroll_position(&self) -> gpui::Point<f32> {
9362 self.scroll_anchor.scroll_position(&self.display_snapshot)
9363 }
9364
9365 pub fn gutter_dimensions(
9366 &self,
9367 font_id: FontId,
9368 font_size: Pixels,
9369 em_width: Pixels,
9370 max_line_number_width: Pixels,
9371 cx: &AppContext,
9372 ) -> GutterDimensions {
9373 if self.show_gutter {
9374 let descent = cx.text_system().descent(font_id, font_size);
9375 let gutter_padding_factor = 4.0;
9376 let gutter_padding = (em_width * gutter_padding_factor).round();
9377 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9378 let min_width_for_number_on_gutter = em_width * 4.0;
9379 let gutter_width =
9380 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9381 let gutter_margin = -descent;
9382
9383 GutterDimensions {
9384 padding: gutter_padding,
9385 width: gutter_width,
9386 margin: gutter_margin,
9387 }
9388 } else {
9389 GutterDimensions::default()
9390 }
9391 }
9392}
9393
9394impl Deref for EditorSnapshot {
9395 type Target = DisplaySnapshot;
9396
9397 fn deref(&self) -> &Self::Target {
9398 &self.display_snapshot
9399 }
9400}
9401
9402#[derive(Clone, Debug, PartialEq, Eq)]
9403pub enum EditorEvent {
9404 InputIgnored {
9405 text: Arc<str>,
9406 },
9407 InputHandled {
9408 utf16_range_to_replace: Option<Range<isize>>,
9409 text: Arc<str>,
9410 },
9411 ExcerptsAdded {
9412 buffer: Model<Buffer>,
9413 predecessor: ExcerptId,
9414 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9415 },
9416 ExcerptsRemoved {
9417 ids: Vec<ExcerptId>,
9418 },
9419 BufferEdited,
9420 Edited,
9421 Reparsed,
9422 Focused,
9423 Blurred,
9424 DirtyChanged,
9425 Saved,
9426 TitleChanged,
9427 DiffBaseChanged,
9428 SelectionsChanged {
9429 local: bool,
9430 },
9431 ScrollPositionChanged {
9432 local: bool,
9433 autoscroll: bool,
9434 },
9435 Closed,
9436}
9437
9438impl EventEmitter<EditorEvent> for Editor {}
9439
9440impl FocusableView for Editor {
9441 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9442 self.focus_handle.clone()
9443 }
9444}
9445
9446impl Render for Editor {
9447 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9448 let settings = ThemeSettings::get_global(cx);
9449 let text_style = match self.mode {
9450 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9451 color: cx.theme().colors().editor_foreground,
9452 font_family: settings.ui_font.family.clone(),
9453 font_features: settings.ui_font.features,
9454 font_size: rems(0.875).into(),
9455 font_weight: FontWeight::NORMAL,
9456 font_style: FontStyle::Normal,
9457 line_height: relative(settings.buffer_line_height.value()),
9458 background_color: None,
9459 underline: None,
9460 white_space: WhiteSpace::Normal,
9461 },
9462
9463 EditorMode::Full => TextStyle {
9464 color: cx.theme().colors().editor_foreground,
9465 font_family: settings.buffer_font.family.clone(),
9466 font_features: settings.buffer_font.features,
9467 font_size: settings.buffer_font_size(cx).into(),
9468 font_weight: FontWeight::NORMAL,
9469 font_style: FontStyle::Normal,
9470 line_height: relative(settings.buffer_line_height.value()),
9471 background_color: None,
9472 underline: None,
9473 white_space: WhiteSpace::Normal,
9474 },
9475 };
9476
9477 let background = match self.mode {
9478 EditorMode::SingleLine => cx.theme().system().transparent,
9479 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9480 EditorMode::Full => cx.theme().colors().editor_background,
9481 };
9482
9483 EditorElement::new(
9484 cx.view(),
9485 EditorStyle {
9486 background,
9487 local_player: cx.theme().players().local(),
9488 text: text_style,
9489 scrollbar_width: px(12.),
9490 syntax: cx.theme().syntax().clone(),
9491 status: cx.theme().status().clone(),
9492 inlays_style: HighlightStyle {
9493 color: Some(cx.theme().status().hint),
9494 font_weight: Some(FontWeight::BOLD),
9495 ..HighlightStyle::default()
9496 },
9497 suggestions_style: HighlightStyle {
9498 color: Some(cx.theme().status().predictive),
9499 ..HighlightStyle::default()
9500 },
9501 },
9502 )
9503 }
9504}
9505
9506impl ViewInputHandler for Editor {
9507 fn text_for_range(
9508 &mut self,
9509 range_utf16: Range<usize>,
9510 cx: &mut ViewContext<Self>,
9511 ) -> Option<String> {
9512 Some(
9513 self.buffer
9514 .read(cx)
9515 .read(cx)
9516 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9517 .collect(),
9518 )
9519 }
9520
9521 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9522 // Prevent the IME menu from appearing when holding down an alphabetic key
9523 // while input is disabled.
9524 if !self.input_enabled {
9525 return None;
9526 }
9527
9528 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9529 Some(range.start.0..range.end.0)
9530 }
9531
9532 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9533 let snapshot = self.buffer.read(cx).read(cx);
9534 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9535 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9536 }
9537
9538 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9539 self.clear_highlights::<InputComposition>(cx);
9540 self.ime_transaction.take();
9541 }
9542
9543 fn replace_text_in_range(
9544 &mut self,
9545 range_utf16: Option<Range<usize>>,
9546 text: &str,
9547 cx: &mut ViewContext<Self>,
9548 ) {
9549 if !self.input_enabled {
9550 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9551 return;
9552 }
9553
9554 self.transact(cx, |this, cx| {
9555 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9556 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9557 Some(this.selection_replacement_ranges(range_utf16, cx))
9558 } else {
9559 this.marked_text_ranges(cx)
9560 };
9561
9562 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9563 let newest_selection_id = this.selections.newest_anchor().id;
9564 this.selections
9565 .all::<OffsetUtf16>(cx)
9566 .iter()
9567 .zip(ranges_to_replace.iter())
9568 .find_map(|(selection, range)| {
9569 if selection.id == newest_selection_id {
9570 Some(
9571 (range.start.0 as isize - selection.head().0 as isize)
9572 ..(range.end.0 as isize - selection.head().0 as isize),
9573 )
9574 } else {
9575 None
9576 }
9577 })
9578 });
9579
9580 cx.emit(EditorEvent::InputHandled {
9581 utf16_range_to_replace: range_to_replace,
9582 text: text.into(),
9583 });
9584
9585 if let Some(new_selected_ranges) = new_selected_ranges {
9586 this.change_selections(None, cx, |selections| {
9587 selections.select_ranges(new_selected_ranges)
9588 });
9589 }
9590
9591 this.handle_input(text, cx);
9592 });
9593
9594 if let Some(transaction) = self.ime_transaction {
9595 self.buffer.update(cx, |buffer, cx| {
9596 buffer.group_until_transaction(transaction, cx);
9597 });
9598 }
9599
9600 self.unmark_text(cx);
9601 }
9602
9603 fn replace_and_mark_text_in_range(
9604 &mut self,
9605 range_utf16: Option<Range<usize>>,
9606 text: &str,
9607 new_selected_range_utf16: Option<Range<usize>>,
9608 cx: &mut ViewContext<Self>,
9609 ) {
9610 if !self.input_enabled {
9611 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9612 return;
9613 }
9614
9615 let transaction = self.transact(cx, |this, cx| {
9616 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9617 let snapshot = this.buffer.read(cx).read(cx);
9618 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9619 for marked_range in &mut marked_ranges {
9620 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9621 marked_range.start.0 += relative_range_utf16.start;
9622 marked_range.start =
9623 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9624 marked_range.end =
9625 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9626 }
9627 }
9628 Some(marked_ranges)
9629 } else if let Some(range_utf16) = range_utf16 {
9630 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9631 Some(this.selection_replacement_ranges(range_utf16, cx))
9632 } else {
9633 None
9634 };
9635
9636 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9637 let newest_selection_id = this.selections.newest_anchor().id;
9638 this.selections
9639 .all::<OffsetUtf16>(cx)
9640 .iter()
9641 .zip(ranges_to_replace.iter())
9642 .find_map(|(selection, range)| {
9643 if selection.id == newest_selection_id {
9644 Some(
9645 (range.start.0 as isize - selection.head().0 as isize)
9646 ..(range.end.0 as isize - selection.head().0 as isize),
9647 )
9648 } else {
9649 None
9650 }
9651 })
9652 });
9653
9654 cx.emit(EditorEvent::InputHandled {
9655 utf16_range_to_replace: range_to_replace,
9656 text: text.into(),
9657 });
9658
9659 if let Some(ranges) = ranges_to_replace {
9660 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9661 }
9662
9663 let marked_ranges = {
9664 let snapshot = this.buffer.read(cx).read(cx);
9665 this.selections
9666 .disjoint_anchors()
9667 .iter()
9668 .map(|selection| {
9669 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9670 })
9671 .collect::<Vec<_>>()
9672 };
9673
9674 if text.is_empty() {
9675 this.unmark_text(cx);
9676 } else {
9677 this.highlight_text::<InputComposition>(
9678 marked_ranges.clone(),
9679 HighlightStyle::default(), // todo!() this.style(cx).composition_mark,
9680 cx,
9681 );
9682 }
9683
9684 this.handle_input(text, cx);
9685
9686 if let Some(new_selected_range) = new_selected_range_utf16 {
9687 let snapshot = this.buffer.read(cx).read(cx);
9688 let new_selected_ranges = marked_ranges
9689 .into_iter()
9690 .map(|marked_range| {
9691 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9692 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9693 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9694 snapshot.clip_offset_utf16(new_start, Bias::Left)
9695 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9696 })
9697 .collect::<Vec<_>>();
9698
9699 drop(snapshot);
9700 this.change_selections(None, cx, |selections| {
9701 selections.select_ranges(new_selected_ranges)
9702 });
9703 }
9704 });
9705
9706 self.ime_transaction = self.ime_transaction.or(transaction);
9707 if let Some(transaction) = self.ime_transaction {
9708 self.buffer.update(cx, |buffer, cx| {
9709 buffer.group_until_transaction(transaction, cx);
9710 });
9711 }
9712
9713 if self.text_highlights::<InputComposition>(cx).is_none() {
9714 self.ime_transaction.take();
9715 }
9716 }
9717
9718 fn bounds_for_range(
9719 &mut self,
9720 range_utf16: Range<usize>,
9721 element_bounds: gpui::Bounds<Pixels>,
9722 cx: &mut ViewContext<Self>,
9723 ) -> Option<gpui::Bounds<Pixels>> {
9724 let text_layout_details = self.text_layout_details(cx);
9725 let style = &text_layout_details.editor_style;
9726 let font_id = cx.text_system().resolve_font(&style.text.font());
9727 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9728 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9729 let em_width = cx
9730 .text_system()
9731 .typographic_bounds(font_id, font_size, 'm')
9732 .unwrap()
9733 .size
9734 .width;
9735
9736 let snapshot = self.snapshot(cx);
9737 let scroll_position = snapshot.scroll_position();
9738 let scroll_left = scroll_position.x * em_width;
9739
9740 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9741 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9742 + self.gutter_width;
9743 let y = line_height * (start.row() as f32 - scroll_position.y);
9744
9745 Some(Bounds {
9746 origin: element_bounds.origin + point(x, y),
9747 size: size(em_width, line_height),
9748 })
9749 }
9750}
9751
9752trait SelectionExt {
9753 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9754 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9755 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9756 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9757 -> Range<u32>;
9758}
9759
9760impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9761 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9762 let start = self.start.to_point(buffer);
9763 let end = self.end.to_point(buffer);
9764 if self.reversed {
9765 end..start
9766 } else {
9767 start..end
9768 }
9769 }
9770
9771 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9772 let start = self.start.to_offset(buffer);
9773 let end = self.end.to_offset(buffer);
9774 if self.reversed {
9775 end..start
9776 } else {
9777 start..end
9778 }
9779 }
9780
9781 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9782 let start = self
9783 .start
9784 .to_point(&map.buffer_snapshot)
9785 .to_display_point(map);
9786 let end = self
9787 .end
9788 .to_point(&map.buffer_snapshot)
9789 .to_display_point(map);
9790 if self.reversed {
9791 end..start
9792 } else {
9793 start..end
9794 }
9795 }
9796
9797 fn spanned_rows(
9798 &self,
9799 include_end_if_at_line_start: bool,
9800 map: &DisplaySnapshot,
9801 ) -> Range<u32> {
9802 let start = self.start.to_point(&map.buffer_snapshot);
9803 let mut end = self.end.to_point(&map.buffer_snapshot);
9804 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9805 end.row -= 1;
9806 }
9807
9808 let buffer_start = map.prev_line_boundary(start).0;
9809 let buffer_end = map.next_line_boundary(end).0;
9810 buffer_start.row..buffer_end.row + 1
9811 }
9812}
9813
9814impl<T: InvalidationRegion> InvalidationStack<T> {
9815 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9816 where
9817 S: Clone + ToOffset,
9818 {
9819 while let Some(region) = self.last() {
9820 let all_selections_inside_invalidation_ranges =
9821 if selections.len() == region.ranges().len() {
9822 selections
9823 .iter()
9824 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9825 .all(|(selection, invalidation_range)| {
9826 let head = selection.head().to_offset(buffer);
9827 invalidation_range.start <= head && invalidation_range.end >= head
9828 })
9829 } else {
9830 false
9831 };
9832
9833 if all_selections_inside_invalidation_ranges {
9834 break;
9835 } else {
9836 self.pop();
9837 }
9838 }
9839 }
9840}
9841
9842impl<T> Default for InvalidationStack<T> {
9843 fn default() -> Self {
9844 Self(Default::default())
9845 }
9846}
9847
9848impl<T> Deref for InvalidationStack<T> {
9849 type Target = Vec<T>;
9850
9851 fn deref(&self) -> &Self::Target {
9852 &self.0
9853 }
9854}
9855
9856impl<T> DerefMut for InvalidationStack<T> {
9857 fn deref_mut(&mut self) -> &mut Self::Target {
9858 &mut self.0
9859 }
9860}
9861
9862impl InvalidationRegion for SnippetState {
9863 fn ranges(&self) -> &[Range<Anchor>] {
9864 &self.ranges[self.active_index]
9865 }
9866}
9867
9868pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9869 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9870
9871 Arc::new(move |cx: &mut BlockContext| {
9872 let group_id: SharedString = cx.block_id.to_string().into();
9873
9874 let mut text_style = cx.text_style().clone();
9875 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
9876
9877 h_flex()
9878 .id(cx.block_id)
9879 .group(group_id.clone())
9880 .relative()
9881 .size_full()
9882 .pl(cx.gutter_width)
9883 .w(cx.max_width + cx.gutter_width)
9884 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
9885 .child(div().flex().flex_shrink_0().child(
9886 StyledText::new(text_without_backticks.clone()).with_highlights(
9887 &text_style,
9888 code_ranges.iter().map(|range| {
9889 (
9890 range.clone(),
9891 HighlightStyle {
9892 font_weight: Some(FontWeight::BOLD),
9893 ..Default::default()
9894 },
9895 )
9896 }),
9897 ),
9898 ))
9899 .child(
9900 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
9901 .icon_color(Color::Muted)
9902 .size(ButtonSize::Compact)
9903 .style(ButtonStyle::Transparent)
9904 .visible_on_hover(group_id)
9905 .on_click({
9906 let message = diagnostic.message.clone();
9907 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
9908 })
9909 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
9910 )
9911 .into_any_element()
9912 })
9913}
9914
9915pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
9916 let mut text_without_backticks = String::new();
9917 let mut code_ranges = Vec::new();
9918
9919 if let Some(source) = &diagnostic.source {
9920 text_without_backticks.push_str(&source);
9921 code_ranges.push(0..source.len());
9922 text_without_backticks.push_str(": ");
9923 }
9924
9925 let mut prev_offset = 0;
9926 let mut in_code_block = false;
9927 for (ix, _) in diagnostic
9928 .message
9929 .match_indices('`')
9930 .chain([(diagnostic.message.len(), "")])
9931 {
9932 let prev_len = text_without_backticks.len();
9933 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
9934 prev_offset = ix + 1;
9935 if in_code_block {
9936 code_ranges.push(prev_len..text_without_backticks.len());
9937 in_code_block = false;
9938 } else {
9939 in_code_block = true;
9940 }
9941 }
9942
9943 (text_without_backticks.into(), code_ranges)
9944}
9945
9946fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
9947 match (severity, valid) {
9948 (DiagnosticSeverity::ERROR, true) => colors.error,
9949 (DiagnosticSeverity::ERROR, false) => colors.error,
9950 (DiagnosticSeverity::WARNING, true) => colors.warning,
9951 (DiagnosticSeverity::WARNING, false) => colors.warning,
9952 (DiagnosticSeverity::INFORMATION, true) => colors.info,
9953 (DiagnosticSeverity::INFORMATION, false) => colors.info,
9954 (DiagnosticSeverity::HINT, true) => colors.info,
9955 (DiagnosticSeverity::HINT, false) => colors.info,
9956 _ => colors.ignored,
9957 }
9958}
9959
9960pub fn styled_runs_for_code_label<'a>(
9961 label: &'a CodeLabel,
9962 syntax_theme: &'a theme::SyntaxTheme,
9963) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
9964 let fade_out = HighlightStyle {
9965 fade_out: Some(0.35),
9966 ..Default::default()
9967 };
9968
9969 let mut prev_end = label.filter_range.end;
9970 label
9971 .runs
9972 .iter()
9973 .enumerate()
9974 .flat_map(move |(ix, (range, highlight_id))| {
9975 let style = if let Some(style) = highlight_id.style(syntax_theme) {
9976 style
9977 } else {
9978 return Default::default();
9979 };
9980 let mut muted_style = style;
9981 muted_style.highlight(fade_out);
9982
9983 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
9984 if range.start >= label.filter_range.end {
9985 if range.start > prev_end {
9986 runs.push((prev_end..range.start, fade_out));
9987 }
9988 runs.push((range.clone(), muted_style));
9989 } else if range.end <= label.filter_range.end {
9990 runs.push((range.clone(), style));
9991 } else {
9992 runs.push((range.start..label.filter_range.end, style));
9993 runs.push((label.filter_range.end..range.end, muted_style));
9994 }
9995 prev_end = cmp::max(prev_end, range.end);
9996
9997 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
9998 runs.push((prev_end..label.text.len(), fade_out));
9999 }
10000
10001 runs
10002 })
10003}
10004
10005pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10006 let mut index = 0;
10007 let mut codepoints = text.char_indices().peekable();
10008
10009 std::iter::from_fn(move || {
10010 let start_index = index;
10011 while let Some((new_index, codepoint)) = codepoints.next() {
10012 index = new_index + codepoint.len_utf8();
10013 let current_upper = codepoint.is_uppercase();
10014 let next_upper = codepoints
10015 .peek()
10016 .map(|(_, c)| c.is_uppercase())
10017 .unwrap_or(false);
10018
10019 if !current_upper && next_upper {
10020 return Some(&text[start_index..index]);
10021 }
10022 }
10023
10024 index = text.len();
10025 if start_index < text.len() {
10026 return Some(&text[start_index..]);
10027 }
10028 None
10029 })
10030 .flat_map(|word| word.split_inclusive('_'))
10031 .flat_map(|word| word.split_inclusive('-'))
10032}
10033
10034trait RangeToAnchorExt {
10035 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10036}
10037
10038impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10039 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10040 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10041 }
10042}