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 its 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_links;
26mod hover_popover;
27pub mod items;
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 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, 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 hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
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::project_settings::{GitGutterSetting, ProjectSettings};
92use project::Item;
93use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
94use rand::prelude::*;
95use rpc::proto::*;
96use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
97use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
98use serde::{Deserialize, Serialize};
99use settings::{Settings, SettingsStore};
100use smallvec::SmallVec;
101use snippet::Snippet;
102use std::{
103 any::TypeId,
104 borrow::Cow,
105 cmp::{self, Ordering, Reverse},
106 mem,
107 num::NonZeroU32,
108 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
109 path::Path,
110 sync::Arc,
111 time::{Duration, Instant},
112};
113pub use sum_tree::Bias;
114use sum_tree::TreeMap;
115use text::{BufferId, OffsetUtf16, Rope};
116use theme::{
117 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
118 ThemeColors, ThemeSettings,
119};
120use ui::{
121 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
122 Tooltip,
123};
124use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
125use workspace::Toast;
126use workspace::{searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace};
127
128use crate::hover_links::find_url;
129
130const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
131const MAX_LINE_LEN: usize = 1024;
132const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
133const MAX_SELECTION_HISTORY_LEN: usize = 1024;
134const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
135pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
136#[doc(hidden)]
137pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
138#[doc(hidden)]
139pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
140
141pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
142
143pub fn render_parsed_markdown(
144 element_id: impl Into<ElementId>,
145 parsed: &language::ParsedMarkdown,
146 editor_style: &EditorStyle,
147 workspace: Option<WeakView<Workspace>>,
148 cx: &mut ViewContext<Editor>,
149) -> InteractiveText {
150 let code_span_background_color = cx
151 .theme()
152 .colors()
153 .editor_document_highlight_read_background;
154
155 let highlights = gpui::combine_highlights(
156 parsed.highlights.iter().filter_map(|(range, highlight)| {
157 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
158 Some((range.clone(), highlight))
159 }),
160 parsed
161 .regions
162 .iter()
163 .zip(&parsed.region_ranges)
164 .filter_map(|(region, range)| {
165 if region.code {
166 Some((
167 range.clone(),
168 HighlightStyle {
169 background_color: Some(code_span_background_color),
170 ..Default::default()
171 },
172 ))
173 } else {
174 None
175 }
176 }),
177 );
178
179 let mut links = Vec::new();
180 let mut link_ranges = Vec::new();
181 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
182 if let Some(link) = region.link.clone() {
183 links.push(link);
184 link_ranges.push(range.clone());
185 }
186 }
187
188 InteractiveText::new(
189 element_id,
190 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
191 )
192 .on_click(link_ranges, move |clicked_range_ix, cx| {
193 match &links[clicked_range_ix] {
194 markdown::Link::Web { url } => cx.open_url(url),
195 markdown::Link::Path { path } => {
196 if let Some(workspace) = &workspace {
197 _ = workspace.update(cx, |workspace, cx| {
198 workspace.open_abs_path(path.clone(), false, cx).detach();
199 });
200 }
201 }
202 }
203 })
204}
205
206#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
207pub(crate) enum InlayId {
208 Suggestion(usize),
209 Hint(usize),
210}
211
212impl InlayId {
213 fn id(&self) -> usize {
214 match self {
215 Self::Suggestion(id) => *id,
216 Self::Hint(id) => *id,
217 }
218 }
219}
220
221enum DocumentHighlightRead {}
222enum DocumentHighlightWrite {}
223enum InputComposition {}
224
225#[derive(Copy, Clone, PartialEq, Eq)]
226pub enum Direction {
227 Prev,
228 Next,
229}
230
231pub fn init_settings(cx: &mut AppContext) {
232 EditorSettings::register(cx);
233}
234
235pub fn init(cx: &mut AppContext) {
236 init_settings(cx);
237
238 workspace::register_project_item::<Editor>(cx);
239 workspace::register_followable_item::<Editor>(cx);
240 workspace::register_deserializable_item::<Editor>(cx);
241 cx.observe_new_views(
242 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
243 workspace.register_action(Editor::new_file);
244 workspace.register_action(Editor::new_file_in_direction);
245 },
246 )
247 .detach();
248
249 cx.on_action(move |_: &workspace::NewFile, cx| {
250 let app_state = workspace::AppState::global(cx);
251 if let Some(app_state) = app_state.upgrade() {
252 workspace::open_new(&app_state, cx, |workspace, cx| {
253 Editor::new_file(workspace, &Default::default(), cx)
254 })
255 .detach();
256 }
257 });
258 cx.on_action(move |_: &workspace::NewWindow, cx| {
259 let app_state = workspace::AppState::global(cx);
260 if let Some(app_state) = app_state.upgrade() {
261 workspace::open_new(&app_state, cx, |workspace, cx| {
262 Editor::new_file(workspace, &Default::default(), cx)
263 })
264 .detach();
265 }
266 });
267}
268
269trait InvalidationRegion {
270 fn ranges(&self) -> &[Range<Anchor>];
271}
272
273#[derive(Clone, Debug, PartialEq)]
274pub enum SelectPhase {
275 Begin {
276 position: DisplayPoint,
277 add: bool,
278 click_count: usize,
279 },
280 BeginColumnar {
281 position: DisplayPoint,
282 goal_column: u32,
283 },
284 Extend {
285 position: DisplayPoint,
286 click_count: usize,
287 },
288 Update {
289 position: DisplayPoint,
290 goal_column: u32,
291 scroll_delta: gpui::Point<f32>,
292 },
293 End,
294}
295
296#[derive(Clone, Debug)]
297pub enum SelectMode {
298 Character,
299 Word(Range<Anchor>),
300 Line(Range<Anchor>),
301 All,
302}
303
304#[derive(Copy, Clone, PartialEq, Eq, Debug)]
305pub enum EditorMode {
306 SingleLine,
307 AutoHeight { max_lines: usize },
308 Full,
309}
310
311#[derive(Clone, Debug)]
312pub enum SoftWrap {
313 None,
314 EditorWidth,
315 Column(u32),
316}
317
318#[derive(Clone)]
319pub struct EditorStyle {
320 pub background: Hsla,
321 pub local_player: PlayerColor,
322 pub text: TextStyle,
323 pub scrollbar_width: Pixels,
324 pub syntax: Arc<SyntaxTheme>,
325 pub status: StatusColors,
326 pub inlays_style: HighlightStyle,
327 pub suggestions_style: HighlightStyle,
328}
329
330impl Default for EditorStyle {
331 fn default() -> Self {
332 Self {
333 background: Hsla::default(),
334 local_player: PlayerColor::default(),
335 text: TextStyle::default(),
336 scrollbar_width: Pixels::default(),
337 syntax: Default::default(),
338 // HACK: Status colors don't have a real default.
339 // We should look into removing the status colors from the editor
340 // style and retrieve them directly from the theme.
341 status: StatusColors::dark(),
342 inlays_style: HighlightStyle::default(),
343 suggestions_style: HighlightStyle::default(),
344 }
345 }
346}
347
348type CompletionId = usize;
349
350// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
351// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
352
353type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
354type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
355
356/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
357///
358/// See the [module level documentation](self) for more information.
359pub struct Editor {
360 focus_handle: FocusHandle,
361 /// The text buffer being edited
362 buffer: Model<MultiBuffer>,
363 /// Map of how text in the buffer should be displayed.
364 /// Handles soft wraps, folds, fake inlay text insertions, etc.
365 display_map: Model<DisplayMap>,
366 pub selections: SelectionsCollection,
367 pub scroll_manager: ScrollManager,
368 columnar_selection_tail: Option<Anchor>,
369 add_selections_state: Option<AddSelectionsState>,
370 select_next_state: Option<SelectNextState>,
371 select_prev_state: Option<SelectNextState>,
372 selection_history: SelectionHistory,
373 autoclose_regions: Vec<AutocloseRegion>,
374 snippet_stack: InvalidationStack<SnippetState>,
375 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
376 ime_transaction: Option<TransactionId>,
377 active_diagnostics: Option<ActiveDiagnosticGroup>,
378 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
379 project: Option<Model<Project>>,
380 completion_provider: Option<Box<dyn CompletionProvider>>,
381 collaboration_hub: Option<Box<dyn CollaborationHub>>,
382 blink_manager: Model<BlinkManager>,
383 show_cursor_names: bool,
384 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
385 pub show_local_selections: bool,
386 mode: EditorMode,
387 show_breadcrumbs: bool,
388 show_gutter: bool,
389 show_wrap_guides: Option<bool>,
390 placeholder_text: Option<Arc<str>>,
391 highlighted_rows: Option<Range<u32>>,
392 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
393 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
394 nav_history: Option<ItemNavHistory>,
395 context_menu: RwLock<Option<ContextMenu>>,
396 mouse_context_menu: Option<MouseContextMenu>,
397 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
398 next_completion_id: CompletionId,
399 completion_documentation_pre_resolve_debounce: DebouncedDelay,
400 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
401 code_actions_task: Option<Task<()>>,
402 document_highlights_task: Option<Task<()>>,
403 pending_rename: Option<RenameState>,
404 searchable: bool,
405 cursor_shape: CursorShape,
406 collapse_matches: bool,
407 autoindent_mode: Option<AutoindentMode>,
408 workspace: Option<(WeakView<Workspace>, i64)>,
409 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
410 input_enabled: bool,
411 use_modal_editing: bool,
412 read_only: bool,
413 leader_peer_id: Option<PeerId>,
414 remote_id: Option<ViewId>,
415 hover_state: HoverState,
416 gutter_hovered: bool,
417 hovered_link_state: Option<HoveredLinkState>,
418 copilot_state: CopilotState,
419 inlay_hint_cache: InlayHintCache,
420 next_inlay_id: usize,
421 _subscriptions: Vec<Subscription>,
422 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
423 gutter_width: Pixels,
424 style: Option<EditorStyle>,
425 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
426 show_copilot_suggestions: bool,
427 use_autoclose: bool,
428 custom_context_menu: Option<
429 Box<
430 dyn 'static
431 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
432 >,
433 >,
434}
435
436pub struct EditorSnapshot {
437 pub mode: EditorMode,
438 show_gutter: bool,
439 pub display_snapshot: DisplaySnapshot,
440 pub placeholder_text: Option<Arc<str>>,
441 is_focused: bool,
442 scroll_anchor: ScrollAnchor,
443 ongoing_scroll: OngoingScroll,
444}
445
446pub struct GutterDimensions {
447 pub left_padding: Pixels,
448 pub right_padding: Pixels,
449 pub width: Pixels,
450 pub margin: Pixels,
451}
452
453impl Default for GutterDimensions {
454 fn default() -> Self {
455 Self {
456 left_padding: Pixels::ZERO,
457 right_padding: Pixels::ZERO,
458 width: Pixels::ZERO,
459 margin: Pixels::ZERO,
460 }
461 }
462}
463
464#[derive(Debug)]
465pub struct RemoteSelection {
466 pub replica_id: ReplicaId,
467 pub selection: Selection<Anchor>,
468 pub cursor_shape: CursorShape,
469 pub peer_id: PeerId,
470 pub line_mode: bool,
471 pub participant_index: Option<ParticipantIndex>,
472 pub user_name: Option<SharedString>,
473}
474
475#[derive(Clone, Debug)]
476struct SelectionHistoryEntry {
477 selections: Arc<[Selection<Anchor>]>,
478 select_next_state: Option<SelectNextState>,
479 select_prev_state: Option<SelectNextState>,
480 add_selections_state: Option<AddSelectionsState>,
481}
482
483enum SelectionHistoryMode {
484 Normal,
485 Undoing,
486 Redoing,
487}
488
489#[derive(Clone, PartialEq, Eq, Hash)]
490struct HoveredCursor {
491 replica_id: u16,
492 selection_id: usize,
493}
494
495impl Default for SelectionHistoryMode {
496 fn default() -> Self {
497 Self::Normal
498 }
499}
500
501#[derive(Default)]
502struct SelectionHistory {
503 #[allow(clippy::type_complexity)]
504 selections_by_transaction:
505 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
506 mode: SelectionHistoryMode,
507 undo_stack: VecDeque<SelectionHistoryEntry>,
508 redo_stack: VecDeque<SelectionHistoryEntry>,
509}
510
511impl SelectionHistory {
512 fn insert_transaction(
513 &mut self,
514 transaction_id: TransactionId,
515 selections: Arc<[Selection<Anchor>]>,
516 ) {
517 self.selections_by_transaction
518 .insert(transaction_id, (selections, None));
519 }
520
521 #[allow(clippy::type_complexity)]
522 fn transaction(
523 &self,
524 transaction_id: TransactionId,
525 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
526 self.selections_by_transaction.get(&transaction_id)
527 }
528
529 #[allow(clippy::type_complexity)]
530 fn transaction_mut(
531 &mut self,
532 transaction_id: TransactionId,
533 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
534 self.selections_by_transaction.get_mut(&transaction_id)
535 }
536
537 fn push(&mut self, entry: SelectionHistoryEntry) {
538 if !entry.selections.is_empty() {
539 match self.mode {
540 SelectionHistoryMode::Normal => {
541 self.push_undo(entry);
542 self.redo_stack.clear();
543 }
544 SelectionHistoryMode::Undoing => self.push_redo(entry),
545 SelectionHistoryMode::Redoing => self.push_undo(entry),
546 }
547 }
548 }
549
550 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
551 if self
552 .undo_stack
553 .back()
554 .map_or(true, |e| e.selections != entry.selections)
555 {
556 self.undo_stack.push_back(entry);
557 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
558 self.undo_stack.pop_front();
559 }
560 }
561 }
562
563 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
564 if self
565 .redo_stack
566 .back()
567 .map_or(true, |e| e.selections != entry.selections)
568 {
569 self.redo_stack.push_back(entry);
570 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
571 self.redo_stack.pop_front();
572 }
573 }
574 }
575}
576
577#[derive(Clone, Debug)]
578struct AddSelectionsState {
579 above: bool,
580 stack: Vec<usize>,
581}
582
583#[derive(Clone)]
584struct SelectNextState {
585 query: AhoCorasick,
586 wordwise: bool,
587 done: bool,
588}
589
590impl std::fmt::Debug for SelectNextState {
591 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
592 f.debug_struct(std::any::type_name::<Self>())
593 .field("wordwise", &self.wordwise)
594 .field("done", &self.done)
595 .finish()
596 }
597}
598
599#[derive(Debug)]
600struct AutocloseRegion {
601 selection_id: usize,
602 range: Range<Anchor>,
603 pair: BracketPair,
604}
605
606#[derive(Debug)]
607struct SnippetState {
608 ranges: Vec<Vec<Range<Anchor>>>,
609 active_index: usize,
610}
611
612#[doc(hidden)]
613pub struct RenameState {
614 pub range: Range<Anchor>,
615 pub old_name: Arc<str>,
616 pub editor: View<Editor>,
617 block_id: BlockId,
618}
619
620struct InvalidationStack<T>(Vec<T>);
621
622enum ContextMenu {
623 Completions(CompletionsMenu),
624 CodeActions(CodeActionsMenu),
625}
626
627impl ContextMenu {
628 fn select_first(
629 &mut self,
630 project: Option<&Model<Project>>,
631 cx: &mut ViewContext<Editor>,
632 ) -> bool {
633 if self.visible() {
634 match self {
635 ContextMenu::Completions(menu) => menu.select_first(project, cx),
636 ContextMenu::CodeActions(menu) => menu.select_first(cx),
637 }
638 true
639 } else {
640 false
641 }
642 }
643
644 fn select_prev(
645 &mut self,
646 project: Option<&Model<Project>>,
647 cx: &mut ViewContext<Editor>,
648 ) -> bool {
649 if self.visible() {
650 match self {
651 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
652 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
653 }
654 true
655 } else {
656 false
657 }
658 }
659
660 fn select_next(
661 &mut self,
662 project: Option<&Model<Project>>,
663 cx: &mut ViewContext<Editor>,
664 ) -> bool {
665 if self.visible() {
666 match self {
667 ContextMenu::Completions(menu) => menu.select_next(project, cx),
668 ContextMenu::CodeActions(menu) => menu.select_next(cx),
669 }
670 true
671 } else {
672 false
673 }
674 }
675
676 fn select_last(
677 &mut self,
678 project: Option<&Model<Project>>,
679 cx: &mut ViewContext<Editor>,
680 ) -> bool {
681 if self.visible() {
682 match self {
683 ContextMenu::Completions(menu) => menu.select_last(project, cx),
684 ContextMenu::CodeActions(menu) => menu.select_last(cx),
685 }
686 true
687 } else {
688 false
689 }
690 }
691
692 fn visible(&self) -> bool {
693 match self {
694 ContextMenu::Completions(menu) => menu.visible(),
695 ContextMenu::CodeActions(menu) => menu.visible(),
696 }
697 }
698
699 fn render(
700 &self,
701 cursor_position: DisplayPoint,
702 style: &EditorStyle,
703 max_height: Pixels,
704 workspace: Option<WeakView<Workspace>>,
705 cx: &mut ViewContext<Editor>,
706 ) -> (DisplayPoint, AnyElement) {
707 match self {
708 ContextMenu::Completions(menu) => (
709 cursor_position,
710 menu.render(style, max_height, workspace, cx),
711 ),
712 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
713 }
714 }
715}
716
717#[derive(Clone)]
718struct CompletionsMenu {
719 id: CompletionId,
720 initial_position: Anchor,
721 buffer: Model<Buffer>,
722 completions: Arc<RwLock<Box<[Completion]>>>,
723 match_candidates: Arc<[StringMatchCandidate]>,
724 matches: Arc<[StringMatch]>,
725 selected_item: usize,
726 scroll_handle: UniformListScrollHandle,
727 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
728}
729
730impl CompletionsMenu {
731 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
732 self.selected_item = 0;
733 self.scroll_handle.scroll_to_item(self.selected_item);
734 self.attempt_resolve_selected_completion_documentation(project, cx);
735 cx.notify();
736 }
737
738 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
739 if self.selected_item > 0 {
740 self.selected_item -= 1;
741 } else {
742 self.selected_item = self.matches.len() - 1;
743 }
744 self.scroll_handle.scroll_to_item(self.selected_item);
745 self.attempt_resolve_selected_completion_documentation(project, cx);
746 cx.notify();
747 }
748
749 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
750 if self.selected_item + 1 < self.matches.len() {
751 self.selected_item += 1;
752 } else {
753 self.selected_item = 0;
754 }
755 self.scroll_handle.scroll_to_item(self.selected_item);
756 self.attempt_resolve_selected_completion_documentation(project, cx);
757 cx.notify();
758 }
759
760 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
761 self.selected_item = self.matches.len() - 1;
762 self.scroll_handle.scroll_to_item(self.selected_item);
763 self.attempt_resolve_selected_completion_documentation(project, cx);
764 cx.notify();
765 }
766
767 fn pre_resolve_completion_documentation(
768 completions: Arc<RwLock<Box<[Completion]>>>,
769 matches: Arc<[StringMatch]>,
770 editor: &Editor,
771 cx: &mut ViewContext<Editor>,
772 ) -> Task<()> {
773 let settings = EditorSettings::get_global(cx);
774 if !settings.show_completion_documentation {
775 return Task::ready(());
776 }
777
778 let Some(provider) = editor.completion_provider.as_ref() else {
779 return Task::ready(());
780 };
781
782 let resolve_task = provider.resolve_completions(
783 matches.iter().map(|m| m.candidate_id).collect(),
784 completions.clone(),
785 cx,
786 );
787
788 return cx.spawn(move |this, mut cx| async move {
789 if let Some(true) = resolve_task.await.log_err() {
790 this.update(&mut cx, |_, cx| cx.notify()).ok();
791 }
792 });
793 }
794
795 fn attempt_resolve_selected_completion_documentation(
796 &mut self,
797 project: Option<&Model<Project>>,
798 cx: &mut ViewContext<Editor>,
799 ) {
800 let settings = EditorSettings::get_global(cx);
801 if !settings.show_completion_documentation {
802 return;
803 }
804
805 let completion_index = self.matches[self.selected_item].candidate_id;
806 let Some(project) = project else {
807 return;
808 };
809
810 let resolve_task = project.update(cx, |project, cx| {
811 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
812 });
813
814 let delay_ms =
815 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
816 let delay = Duration::from_millis(delay_ms);
817
818 self.selected_completion_documentation_resolve_debounce
819 .lock()
820 .fire_new(delay, cx, |_, cx| {
821 cx.spawn(move |this, mut cx| async move {
822 if let Some(true) = resolve_task.await.log_err() {
823 this.update(&mut cx, |_, cx| cx.notify()).ok();
824 }
825 })
826 });
827 }
828
829 fn visible(&self) -> bool {
830 !self.matches.is_empty()
831 }
832
833 fn render(
834 &self,
835 style: &EditorStyle,
836 max_height: Pixels,
837 workspace: Option<WeakView<Workspace>>,
838 cx: &mut ViewContext<Editor>,
839 ) -> AnyElement {
840 let settings = EditorSettings::get_global(cx);
841 let show_completion_documentation = settings.show_completion_documentation;
842
843 let widest_completion_ix = self
844 .matches
845 .iter()
846 .enumerate()
847 .max_by_key(|(_, mat)| {
848 let completions = self.completions.read();
849 let completion = &completions[mat.candidate_id];
850 let documentation = &completion.documentation;
851
852 let mut len = completion.label.text.chars().count();
853 if let Some(Documentation::SingleLine(text)) = documentation {
854 if show_completion_documentation {
855 len += text.chars().count();
856 }
857 }
858
859 len
860 })
861 .map(|(ix, _)| ix);
862
863 let completions = self.completions.clone();
864 let matches = self.matches.clone();
865 let selected_item = self.selected_item;
866 let style = style.clone();
867
868 let multiline_docs = if show_completion_documentation {
869 let mat = &self.matches[selected_item];
870 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
871 Some(Documentation::MultiLinePlainText(text)) => {
872 Some(div().child(SharedString::from(text.clone())))
873 }
874 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
875 Some(div().child(render_parsed_markdown(
876 "completions_markdown",
877 parsed,
878 &style,
879 workspace,
880 cx,
881 )))
882 }
883 _ => None,
884 };
885 multiline_docs.map(|div| {
886 div.id("multiline_docs")
887 .max_h(max_height)
888 .flex_1()
889 .px_1p5()
890 .py_1()
891 .min_w(px(260.))
892 .max_w(px(640.))
893 .w(px(500.))
894 .overflow_y_scroll()
895 // Prevent a mouse down on documentation from being propagated to the editor,
896 // because that would move the cursor.
897 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
898 })
899 } else {
900 None
901 };
902
903 let list = uniform_list(
904 cx.view().clone(),
905 "completions",
906 matches.len(),
907 move |_editor, range, cx| {
908 let start_ix = range.start;
909 let completions_guard = completions.read();
910
911 matches[range]
912 .iter()
913 .enumerate()
914 .map(|(ix, mat)| {
915 let item_ix = start_ix + ix;
916 let candidate_id = mat.candidate_id;
917 let completion = &completions_guard[candidate_id];
918
919 let documentation = if show_completion_documentation {
920 &completion.documentation
921 } else {
922 &None
923 };
924
925 let highlights = gpui::combine_highlights(
926 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
927 styled_runs_for_code_label(&completion.label, &style.syntax).map(
928 |(range, mut highlight)| {
929 // Ignore font weight for syntax highlighting, as we'll use it
930 // for fuzzy matches.
931 highlight.font_weight = None;
932 (range, highlight)
933 },
934 ),
935 );
936 let completion_label = StyledText::new(completion.label.text.clone())
937 .with_highlights(&style.text, highlights);
938 let documentation_label =
939 if let Some(Documentation::SingleLine(text)) = documentation {
940 if text.trim().is_empty() {
941 None
942 } else {
943 Some(
944 h_flex().ml_4().child(
945 Label::new(text.clone())
946 .size(LabelSize::Small)
947 .color(Color::Muted),
948 ),
949 )
950 }
951 } else {
952 None
953 };
954
955 div().min_w(px(220.)).max_w(px(540.)).child(
956 ListItem::new(mat.candidate_id)
957 .inset(true)
958 .selected(item_ix == selected_item)
959 .on_click(cx.listener(move |editor, _event, cx| {
960 cx.stop_propagation();
961 if let Some(task) = editor.confirm_completion(
962 &ConfirmCompletion {
963 item_ix: Some(item_ix),
964 },
965 cx,
966 ) {
967 task.detach_and_log_err(cx)
968 }
969 }))
970 .child(h_flex().overflow_hidden().child(completion_label))
971 .end_slot::<Div>(documentation_label),
972 )
973 })
974 .collect()
975 },
976 )
977 .max_h(max_height)
978 .track_scroll(self.scroll_handle.clone())
979 .with_width_from_item(widest_completion_ix);
980
981 Popover::new()
982 .child(list)
983 .when_some(multiline_docs, |popover, multiline_docs| {
984 popover.aside(multiline_docs)
985 })
986 .into_any_element()
987 }
988
989 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
990 let mut matches = if let Some(query) = query {
991 fuzzy::match_strings(
992 &self.match_candidates,
993 query,
994 query.chars().any(|c| c.is_uppercase()),
995 100,
996 &Default::default(),
997 executor,
998 )
999 .await
1000 } else {
1001 self.match_candidates
1002 .iter()
1003 .enumerate()
1004 .map(|(candidate_id, candidate)| StringMatch {
1005 candidate_id,
1006 score: Default::default(),
1007 positions: Default::default(),
1008 string: candidate.string.clone(),
1009 })
1010 .collect()
1011 };
1012
1013 // Remove all candidates where the query's start does not match the start of any word in the candidate
1014 if let Some(query) = query {
1015 if let Some(query_start) = query.chars().next() {
1016 matches.retain(|string_match| {
1017 split_words(&string_match.string).any(|word| {
1018 // Check that the first codepoint of the word as lowercase matches the first
1019 // codepoint of the query as lowercase
1020 word.chars()
1021 .flat_map(|codepoint| codepoint.to_lowercase())
1022 .zip(query_start.to_lowercase())
1023 .all(|(word_cp, query_cp)| word_cp == query_cp)
1024 })
1025 });
1026 }
1027 }
1028
1029 let completions = self.completions.read();
1030 matches.sort_unstable_by_key(|mat| {
1031 // We do want to strike a balance here between what the language server tells us
1032 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1033 // `Creat` and there is a local variable called `CreateComponent`).
1034 // So what we do is: we bucket all matches into two buckets
1035 // - Strong matches
1036 // - Weak matches
1037 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1038 // and the Weak matches are the rest.
1039 //
1040 // For the strong matches, we sort by the language-servers score first and for the weak
1041 // matches, we prefer our fuzzy finder first.
1042 //
1043 // The thinking behind that: it's useless to take the sort_text the language-server gives
1044 // us into account when it's obviously a bad match.
1045
1046 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1047 enum MatchScore<'a> {
1048 Strong {
1049 sort_text: Option<&'a str>,
1050 score: Reverse<OrderedFloat<f64>>,
1051 sort_key: (usize, &'a str),
1052 },
1053 Weak {
1054 score: Reverse<OrderedFloat<f64>>,
1055 sort_text: Option<&'a str>,
1056 sort_key: (usize, &'a str),
1057 },
1058 }
1059
1060 let completion = &completions[mat.candidate_id];
1061 let sort_key = completion.sort_key();
1062 let sort_text = completion.lsp_completion.sort_text.as_deref();
1063 let score = Reverse(OrderedFloat(mat.score));
1064
1065 if mat.score >= 0.2 {
1066 MatchScore::Strong {
1067 sort_text,
1068 score,
1069 sort_key,
1070 }
1071 } else {
1072 MatchScore::Weak {
1073 score,
1074 sort_text,
1075 sort_key,
1076 }
1077 }
1078 });
1079
1080 for mat in &mut matches {
1081 let completion = &completions[mat.candidate_id];
1082 mat.string = completion.label.text.clone();
1083 for position in &mut mat.positions {
1084 *position += completion.label.filter_range.start;
1085 }
1086 }
1087 drop(completions);
1088
1089 self.matches = matches.into();
1090 self.selected_item = 0;
1091 }
1092}
1093
1094#[derive(Clone)]
1095struct CodeActionsMenu {
1096 actions: Arc<[CodeAction]>,
1097 buffer: Model<Buffer>,
1098 selected_item: usize,
1099 scroll_handle: UniformListScrollHandle,
1100 deployed_from_indicator: bool,
1101}
1102
1103impl CodeActionsMenu {
1104 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1105 self.selected_item = 0;
1106 self.scroll_handle.scroll_to_item(self.selected_item);
1107 cx.notify()
1108 }
1109
1110 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1111 if self.selected_item > 0 {
1112 self.selected_item -= 1;
1113 } else {
1114 self.selected_item = self.actions.len() - 1;
1115 }
1116 self.scroll_handle.scroll_to_item(self.selected_item);
1117 cx.notify();
1118 }
1119
1120 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1121 if self.selected_item + 1 < self.actions.len() {
1122 self.selected_item += 1;
1123 } else {
1124 self.selected_item = 0;
1125 }
1126 self.scroll_handle.scroll_to_item(self.selected_item);
1127 cx.notify();
1128 }
1129
1130 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1131 self.selected_item = self.actions.len() - 1;
1132 self.scroll_handle.scroll_to_item(self.selected_item);
1133 cx.notify()
1134 }
1135
1136 fn visible(&self) -> bool {
1137 !self.actions.is_empty()
1138 }
1139
1140 fn render(
1141 &self,
1142 mut cursor_position: DisplayPoint,
1143 _style: &EditorStyle,
1144 max_height: Pixels,
1145 cx: &mut ViewContext<Editor>,
1146 ) -> (DisplayPoint, AnyElement) {
1147 let actions = self.actions.clone();
1148 let selected_item = self.selected_item;
1149
1150 let element = uniform_list(
1151 cx.view().clone(),
1152 "code_actions_menu",
1153 self.actions.len(),
1154 move |_this, range, cx| {
1155 actions[range.clone()]
1156 .iter()
1157 .enumerate()
1158 .map(|(ix, action)| {
1159 let item_ix = range.start + ix;
1160 let selected = selected_item == item_ix;
1161 let colors = cx.theme().colors();
1162 div()
1163 .px_2()
1164 .text_color(colors.text)
1165 .when(selected, |style| {
1166 style
1167 .bg(colors.element_active)
1168 .text_color(colors.text_accent)
1169 })
1170 .hover(|style| {
1171 style
1172 .bg(colors.element_hover)
1173 .text_color(colors.text_accent)
1174 })
1175 .on_mouse_down(
1176 MouseButton::Left,
1177 cx.listener(move |editor, _, cx| {
1178 cx.stop_propagation();
1179 if let Some(task) = editor.confirm_code_action(
1180 &ConfirmCodeAction {
1181 item_ix: Some(item_ix),
1182 },
1183 cx,
1184 ) {
1185 task.detach_and_log_err(cx)
1186 }
1187 }),
1188 )
1189 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1190 .child(SharedString::from(action.lsp_action.title.clone()))
1191 })
1192 .collect()
1193 },
1194 )
1195 .elevation_1(cx)
1196 .px_2()
1197 .py_1()
1198 .max_h(max_height)
1199 .track_scroll(self.scroll_handle.clone())
1200 .with_width_from_item(
1201 self.actions
1202 .iter()
1203 .enumerate()
1204 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1205 .map(|(ix, _)| ix),
1206 )
1207 .into_any_element();
1208
1209 if self.deployed_from_indicator {
1210 *cursor_position.column_mut() = 0;
1211 }
1212
1213 (cursor_position, element)
1214 }
1215}
1216
1217pub(crate) struct CopilotState {
1218 excerpt_id: Option<ExcerptId>,
1219 pending_refresh: Task<Option<()>>,
1220 pending_cycling_refresh: Task<Option<()>>,
1221 cycled: bool,
1222 completions: Vec<copilot::Completion>,
1223 active_completion_index: usize,
1224 suggestion: Option<Inlay>,
1225}
1226
1227impl Default for CopilotState {
1228 fn default() -> Self {
1229 Self {
1230 excerpt_id: None,
1231 pending_cycling_refresh: Task::ready(Some(())),
1232 pending_refresh: Task::ready(Some(())),
1233 completions: Default::default(),
1234 active_completion_index: 0,
1235 cycled: false,
1236 suggestion: None,
1237 }
1238 }
1239}
1240
1241impl CopilotState {
1242 fn active_completion(&self) -> Option<&copilot::Completion> {
1243 self.completions.get(self.active_completion_index)
1244 }
1245
1246 fn text_for_active_completion(
1247 &self,
1248 cursor: Anchor,
1249 buffer: &MultiBufferSnapshot,
1250 ) -> Option<&str> {
1251 use language::ToOffset as _;
1252
1253 let completion = self.active_completion()?;
1254 let excerpt_id = self.excerpt_id?;
1255 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1256 if excerpt_id != cursor.excerpt_id
1257 || !completion.range.start.is_valid(completion_buffer)
1258 || !completion.range.end.is_valid(completion_buffer)
1259 {
1260 return None;
1261 }
1262
1263 let mut completion_range = completion.range.to_offset(&completion_buffer);
1264 let prefix_len = Self::common_prefix(
1265 completion_buffer.chars_for_range(completion_range.clone()),
1266 completion.text.chars(),
1267 );
1268 completion_range.start += prefix_len;
1269 let suffix_len = Self::common_prefix(
1270 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1271 completion.text[prefix_len..].chars().rev(),
1272 );
1273 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1274
1275 if completion_range.is_empty()
1276 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1277 {
1278 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1279 if completion_text.trim().is_empty() {
1280 None
1281 } else {
1282 Some(completion_text)
1283 }
1284 } else {
1285 None
1286 }
1287 }
1288
1289 fn cycle_completions(&mut self, direction: Direction) {
1290 match direction {
1291 Direction::Prev => {
1292 self.active_completion_index = if self.active_completion_index == 0 {
1293 self.completions.len().saturating_sub(1)
1294 } else {
1295 self.active_completion_index - 1
1296 };
1297 }
1298 Direction::Next => {
1299 if self.completions.len() == 0 {
1300 self.active_completion_index = 0
1301 } else {
1302 self.active_completion_index =
1303 (self.active_completion_index + 1) % self.completions.len();
1304 }
1305 }
1306 }
1307 }
1308
1309 fn push_completion(&mut self, new_completion: copilot::Completion) {
1310 for completion in &self.completions {
1311 if completion.text == new_completion.text && completion.range == new_completion.range {
1312 return;
1313 }
1314 }
1315 self.completions.push(new_completion);
1316 }
1317
1318 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1319 a.zip(b)
1320 .take_while(|(a, b)| a == b)
1321 .map(|(a, _)| a.len_utf8())
1322 .sum()
1323 }
1324}
1325
1326#[derive(Debug)]
1327struct ActiveDiagnosticGroup {
1328 primary_range: Range<Anchor>,
1329 primary_message: String,
1330 blocks: HashMap<BlockId, Diagnostic>,
1331 is_valid: bool,
1332}
1333
1334#[derive(Serialize, Deserialize)]
1335pub struct ClipboardSelection {
1336 pub len: usize,
1337 pub is_entire_line: bool,
1338 pub first_line_indent: u32,
1339}
1340
1341#[derive(Debug)]
1342pub(crate) struct NavigationData {
1343 cursor_anchor: Anchor,
1344 cursor_position: Point,
1345 scroll_anchor: ScrollAnchor,
1346 scroll_top_row: u32,
1347}
1348
1349enum GotoDefinitionKind {
1350 Symbol,
1351 Type,
1352 Implementation,
1353}
1354
1355#[derive(Debug, Clone)]
1356enum InlayHintRefreshReason {
1357 Toggle(bool),
1358 SettingsChange(InlayHintSettings),
1359 NewLinesShown,
1360 BufferEdited(HashSet<Arc<Language>>),
1361 RefreshRequested,
1362 ExcerptsRemoved(Vec<ExcerptId>),
1363}
1364
1365impl InlayHintRefreshReason {
1366 fn description(&self) -> &'static str {
1367 match self {
1368 Self::Toggle(_) => "toggle",
1369 Self::SettingsChange(_) => "settings change",
1370 Self::NewLinesShown => "new lines shown",
1371 Self::BufferEdited(_) => "buffer edited",
1372 Self::RefreshRequested => "refresh requested",
1373 Self::ExcerptsRemoved(_) => "excerpts removed",
1374 }
1375 }
1376}
1377
1378impl Editor {
1379 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1380 let buffer = cx.new_model(|cx| {
1381 Buffer::new(
1382 0,
1383 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1384 String::new(),
1385 )
1386 });
1387 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1388 Self::new(EditorMode::SingleLine, buffer, None, cx)
1389 }
1390
1391 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1392 let buffer = cx.new_model(|cx| {
1393 Buffer::new(
1394 0,
1395 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1396 String::new(),
1397 )
1398 });
1399 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1400 Self::new(EditorMode::Full, buffer, None, cx)
1401 }
1402
1403 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1404 let buffer = cx.new_model(|cx| {
1405 Buffer::new(
1406 0,
1407 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1408 String::new(),
1409 )
1410 });
1411 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1412 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1413 }
1414
1415 pub fn for_buffer(
1416 buffer: Model<Buffer>,
1417 project: Option<Model<Project>>,
1418 cx: &mut ViewContext<Self>,
1419 ) -> Self {
1420 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1421 Self::new(EditorMode::Full, buffer, project, cx)
1422 }
1423
1424 pub fn for_multibuffer(
1425 buffer: Model<MultiBuffer>,
1426 project: Option<Model<Project>>,
1427 cx: &mut ViewContext<Self>,
1428 ) -> Self {
1429 Self::new(EditorMode::Full, buffer, project, cx)
1430 }
1431
1432 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1433 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1434 self.display_map.update(cx, |display_map, cx| {
1435 let snapshot = display_map.snapshot(cx);
1436 clone.display_map.update(cx, |display_map, cx| {
1437 display_map.set_state(&snapshot, cx);
1438 });
1439 });
1440 clone.selections.clone_state(&self.selections);
1441 clone.scroll_manager.clone_state(&self.scroll_manager);
1442 clone.searchable = self.searchable;
1443 clone
1444 }
1445
1446 fn new(
1447 mode: EditorMode,
1448 buffer: Model<MultiBuffer>,
1449 project: Option<Model<Project>>,
1450 cx: &mut ViewContext<Self>,
1451 ) -> Self {
1452 let style = cx.text_style();
1453 let font_size = style.font_size.to_pixels(cx.rem_size());
1454 let display_map = cx.new_model(|cx| {
1455 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1456 });
1457
1458 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1459
1460 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1461
1462 let soft_wrap_mode_override =
1463 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1464
1465 let mut project_subscriptions = Vec::new();
1466 if mode == EditorMode::Full {
1467 if let Some(project) = project.as_ref() {
1468 if buffer.read(cx).is_singleton() {
1469 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1470 cx.emit(EditorEvent::TitleChanged);
1471 }));
1472 }
1473 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1474 if let project::Event::RefreshInlayHints = event {
1475 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1476 };
1477 }));
1478 }
1479 }
1480
1481 let inlay_hint_settings = inlay_hint_settings(
1482 selections.newest_anchor().head(),
1483 &buffer.read(cx).snapshot(cx),
1484 cx,
1485 );
1486
1487 let focus_handle = cx.focus_handle();
1488 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1489 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1490
1491 let mut this = Self {
1492 focus_handle,
1493 buffer: buffer.clone(),
1494 display_map: display_map.clone(),
1495 selections,
1496 scroll_manager: ScrollManager::new(cx),
1497 columnar_selection_tail: None,
1498 add_selections_state: None,
1499 select_next_state: None,
1500 select_prev_state: None,
1501 selection_history: Default::default(),
1502 autoclose_regions: Default::default(),
1503 snippet_stack: Default::default(),
1504 select_larger_syntax_node_stack: Vec::new(),
1505 ime_transaction: Default::default(),
1506 active_diagnostics: None,
1507 soft_wrap_mode_override,
1508 completion_provider: project.clone().map(|project| Box::new(project) as _),
1509 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1510 project,
1511 blink_manager: blink_manager.clone(),
1512 show_local_selections: true,
1513 mode,
1514 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1515 show_gutter: mode == EditorMode::Full,
1516 show_wrap_guides: None,
1517 placeholder_text: None,
1518 highlighted_rows: None,
1519 background_highlights: Default::default(),
1520 inlay_background_highlights: Default::default(),
1521 nav_history: None,
1522 context_menu: RwLock::new(None),
1523 mouse_context_menu: None,
1524 completion_tasks: Default::default(),
1525 next_completion_id: 0,
1526 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1527 next_inlay_id: 0,
1528 available_code_actions: Default::default(),
1529 code_actions_task: Default::default(),
1530 document_highlights_task: Default::default(),
1531 pending_rename: Default::default(),
1532 searchable: true,
1533 cursor_shape: Default::default(),
1534 autoindent_mode: Some(AutoindentMode::EachLine),
1535 collapse_matches: false,
1536 workspace: None,
1537 keymap_context_layers: Default::default(),
1538 input_enabled: true,
1539 use_modal_editing: mode == EditorMode::Full,
1540 read_only: false,
1541 use_autoclose: true,
1542 leader_peer_id: None,
1543 remote_id: None,
1544 hover_state: Default::default(),
1545 hovered_link_state: Default::default(),
1546 copilot_state: Default::default(),
1547 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1548 gutter_hovered: false,
1549 pixel_position_of_newest_cursor: None,
1550 gutter_width: Default::default(),
1551 style: None,
1552 show_cursor_names: false,
1553 hovered_cursors: Default::default(),
1554 editor_actions: Default::default(),
1555 show_copilot_suggestions: mode == EditorMode::Full,
1556 custom_context_menu: None,
1557 _subscriptions: vec![
1558 cx.observe(&buffer, Self::on_buffer_changed),
1559 cx.subscribe(&buffer, Self::on_buffer_event),
1560 cx.observe(&display_map, Self::on_display_map_changed),
1561 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1562 cx.observe_global::<SettingsStore>(Self::settings_changed),
1563 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1564 cx.observe_window_activation(|editor, cx| {
1565 let active = cx.is_window_active();
1566 editor.blink_manager.update(cx, |blink_manager, cx| {
1567 if active {
1568 blink_manager.enable(cx);
1569 } else {
1570 blink_manager.show_cursor(cx);
1571 blink_manager.disable(cx);
1572 }
1573 });
1574 }),
1575 ],
1576 };
1577
1578 this._subscriptions.extend(project_subscriptions);
1579
1580 this.end_selection(cx);
1581 this.scroll_manager.show_scrollbar(cx);
1582
1583 if mode == EditorMode::Full {
1584 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1585 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1586 }
1587
1588 this.report_editor_event("open", None, cx);
1589 this
1590 }
1591
1592 fn key_context(&self, cx: &AppContext) -> KeyContext {
1593 let mut key_context = KeyContext::default();
1594 key_context.add("Editor");
1595 let mode = match self.mode {
1596 EditorMode::SingleLine => "single_line",
1597 EditorMode::AutoHeight { .. } => "auto_height",
1598 EditorMode::Full => "full",
1599 };
1600 key_context.set("mode", mode);
1601 if self.pending_rename.is_some() {
1602 key_context.add("renaming");
1603 }
1604 if self.context_menu_visible() {
1605 match self.context_menu.read().as_ref() {
1606 Some(ContextMenu::Completions(_)) => {
1607 key_context.add("menu");
1608 key_context.add("showing_completions")
1609 }
1610 Some(ContextMenu::CodeActions(_)) => {
1611 key_context.add("menu");
1612 key_context.add("showing_code_actions")
1613 }
1614 None => {}
1615 }
1616 }
1617
1618 for layer in self.keymap_context_layers.values() {
1619 key_context.extend(layer);
1620 }
1621
1622 if let Some(extension) = self
1623 .buffer
1624 .read(cx)
1625 .as_singleton()
1626 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1627 {
1628 key_context.set("extension", extension.to_string());
1629 }
1630
1631 if self.has_active_copilot_suggestion(cx) {
1632 key_context.add("copilot_suggestion");
1633 }
1634
1635 key_context
1636 }
1637
1638 pub fn new_file(
1639 workspace: &mut Workspace,
1640 _: &workspace::NewFile,
1641 cx: &mut ViewContext<Workspace>,
1642 ) {
1643 let project = workspace.project().clone();
1644 if project.read(cx).is_remote() {
1645 cx.propagate();
1646 } else if let Some(buffer) = project
1647 .update(cx, |project, cx| project.create_buffer("", None, cx))
1648 .log_err()
1649 {
1650 workspace.add_item_to_active_pane(
1651 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1652 cx,
1653 );
1654 }
1655 }
1656
1657 pub fn new_file_in_direction(
1658 workspace: &mut Workspace,
1659 action: &workspace::NewFileInDirection,
1660 cx: &mut ViewContext<Workspace>,
1661 ) {
1662 let project = workspace.project().clone();
1663 if project.read(cx).is_remote() {
1664 cx.propagate();
1665 } else if let Some(buffer) = project
1666 .update(cx, |project, cx| project.create_buffer("", None, cx))
1667 .log_err()
1668 {
1669 workspace.split_item(
1670 action.0,
1671 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1672 cx,
1673 );
1674 }
1675 }
1676
1677 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1678 self.buffer.read(cx).replica_id()
1679 }
1680
1681 pub fn leader_peer_id(&self) -> Option<PeerId> {
1682 self.leader_peer_id
1683 }
1684
1685 pub fn buffer(&self) -> &Model<MultiBuffer> {
1686 &self.buffer
1687 }
1688
1689 pub fn workspace(&self) -> Option<View<Workspace>> {
1690 self.workspace.as_ref()?.0.upgrade()
1691 }
1692
1693 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1694 self.buffer().read(cx).title(cx)
1695 }
1696
1697 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1698 EditorSnapshot {
1699 mode: self.mode,
1700 show_gutter: self.show_gutter,
1701 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1702 scroll_anchor: self.scroll_manager.anchor(),
1703 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1704 placeholder_text: self.placeholder_text.clone(),
1705 is_focused: self.focus_handle.is_focused(cx),
1706 }
1707 }
1708
1709 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1710 self.buffer.read(cx).language_at(point, cx)
1711 }
1712
1713 pub fn file_at<T: ToOffset>(
1714 &self,
1715 point: T,
1716 cx: &AppContext,
1717 ) -> Option<Arc<dyn language::File>> {
1718 self.buffer.read(cx).read(cx).file_at(point).cloned()
1719 }
1720
1721 pub fn active_excerpt(
1722 &self,
1723 cx: &AppContext,
1724 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1725 self.buffer
1726 .read(cx)
1727 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1728 }
1729
1730 pub fn mode(&self) -> EditorMode {
1731 self.mode
1732 }
1733
1734 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1735 self.collaboration_hub.as_deref()
1736 }
1737
1738 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1739 self.collaboration_hub = Some(hub);
1740 }
1741
1742 pub fn set_custom_context_menu(
1743 &mut self,
1744 f: impl 'static
1745 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1746 ) {
1747 self.custom_context_menu = Some(Box::new(f))
1748 }
1749
1750 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1751 self.completion_provider = Some(hub);
1752 }
1753
1754 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1755 self.placeholder_text.as_deref()
1756 }
1757
1758 pub fn set_placeholder_text(
1759 &mut self,
1760 placeholder_text: impl Into<Arc<str>>,
1761 cx: &mut ViewContext<Self>,
1762 ) {
1763 let placeholder_text = Some(placeholder_text.into());
1764 if self.placeholder_text != placeholder_text {
1765 self.placeholder_text = placeholder_text;
1766 cx.notify();
1767 }
1768 }
1769
1770 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1771 self.cursor_shape = cursor_shape;
1772 cx.notify();
1773 }
1774
1775 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1776 self.collapse_matches = collapse_matches;
1777 }
1778
1779 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1780 if self.collapse_matches {
1781 return range.start..range.start;
1782 }
1783 range.clone()
1784 }
1785
1786 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1787 if self.display_map.read(cx).clip_at_line_ends != clip {
1788 self.display_map
1789 .update(cx, |map, _| map.clip_at_line_ends = clip);
1790 }
1791 }
1792
1793 pub fn set_keymap_context_layer<Tag: 'static>(
1794 &mut self,
1795 context: KeyContext,
1796 cx: &mut ViewContext<Self>,
1797 ) {
1798 self.keymap_context_layers
1799 .insert(TypeId::of::<Tag>(), context);
1800 cx.notify();
1801 }
1802
1803 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1804 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1805 cx.notify();
1806 }
1807
1808 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1809 self.input_enabled = input_enabled;
1810 }
1811
1812 pub fn set_autoindent(&mut self, autoindent: bool) {
1813 if autoindent {
1814 self.autoindent_mode = Some(AutoindentMode::EachLine);
1815 } else {
1816 self.autoindent_mode = None;
1817 }
1818 }
1819
1820 pub fn read_only(&self, cx: &AppContext) -> bool {
1821 self.read_only || self.buffer.read(cx).read_only()
1822 }
1823
1824 pub fn set_read_only(&mut self, read_only: bool) {
1825 self.read_only = read_only;
1826 }
1827
1828 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1829 self.use_autoclose = autoclose;
1830 }
1831
1832 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1833 self.show_copilot_suggestions = show_copilot_suggestions;
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 cx: &mut ViewContext<Self>,
1849 ) {
1850 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1851 self.buffer.update(cx, |buffer, cx| {
1852 buffer.set_active_selections(
1853 &self.selections.disjoint_anchors(),
1854 self.selections.line_mode,
1855 self.cursor_shape,
1856 cx,
1857 )
1858 });
1859 }
1860
1861 let display_map = self
1862 .display_map
1863 .update(cx, |display_map, cx| display_map.snapshot(cx));
1864 let buffer = &display_map.buffer_snapshot;
1865 self.add_selections_state = None;
1866 self.select_next_state = None;
1867 self.select_prev_state = None;
1868 self.select_larger_syntax_node_stack.clear();
1869 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1870 self.snippet_stack
1871 .invalidate(&self.selections.disjoint_anchors(), buffer);
1872 self.take_rename(false, cx);
1873
1874 let new_cursor_position = self.selections.newest_anchor().head();
1875
1876 self.push_to_nav_history(
1877 *old_cursor_position,
1878 Some(new_cursor_position.to_point(buffer)),
1879 cx,
1880 );
1881
1882 if local {
1883 let new_cursor_position = self.selections.newest_anchor().head();
1884 let mut context_menu = self.context_menu.write();
1885 let completion_menu = match context_menu.as_ref() {
1886 Some(ContextMenu::Completions(menu)) => Some(menu),
1887
1888 _ => {
1889 *context_menu = None;
1890 None
1891 }
1892 };
1893
1894 if let Some(completion_menu) = completion_menu {
1895 let cursor_position = new_cursor_position.to_offset(buffer);
1896 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1897 if kind == Some(CharKind::Word)
1898 && word_range.to_inclusive().contains(&cursor_position)
1899 {
1900 let mut completion_menu = completion_menu.clone();
1901 drop(context_menu);
1902
1903 let query = Self::completion_query(buffer, cursor_position);
1904 cx.spawn(move |this, mut cx| async move {
1905 completion_menu
1906 .filter(query.as_deref(), cx.background_executor().clone())
1907 .await;
1908
1909 this.update(&mut cx, |this, cx| {
1910 let mut context_menu = this.context_menu.write();
1911 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1912 return;
1913 };
1914
1915 if menu.id > completion_menu.id {
1916 return;
1917 }
1918
1919 *context_menu = Some(ContextMenu::Completions(completion_menu));
1920 drop(context_menu);
1921 cx.notify();
1922 })
1923 })
1924 .detach();
1925
1926 self.show_completions(&ShowCompletions, cx);
1927 } else {
1928 drop(context_menu);
1929 self.hide_context_menu(cx);
1930 }
1931 } else {
1932 drop(context_menu);
1933 }
1934
1935 hide_hover(self, cx);
1936
1937 if old_cursor_position.to_display_point(&display_map).row()
1938 != new_cursor_position.to_display_point(&display_map).row()
1939 {
1940 self.available_code_actions.take();
1941 }
1942 self.refresh_code_actions(cx);
1943 self.refresh_document_highlights(cx);
1944 refresh_matching_bracket_highlights(self, cx);
1945 self.discard_copilot_suggestion(cx);
1946 }
1947
1948 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1949 cx.emit(EditorEvent::SelectionsChanged { local });
1950
1951 if self.selections.disjoint_anchors().len() == 1 {
1952 cx.emit(SearchEvent::ActiveMatchChanged)
1953 }
1954
1955 cx.notify();
1956 }
1957
1958 pub fn change_selections<R>(
1959 &mut self,
1960 autoscroll: Option<Autoscroll>,
1961 cx: &mut ViewContext<Self>,
1962 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1963 ) -> R {
1964 let old_cursor_position = self.selections.newest_anchor().head();
1965 self.push_to_selection_history();
1966
1967 let (changed, result) = self.selections.change_with(cx, change);
1968
1969 if changed {
1970 if let Some(autoscroll) = autoscroll {
1971 self.request_autoscroll(autoscroll, cx);
1972 }
1973 self.selections_did_change(true, &old_cursor_position, cx);
1974 }
1975
1976 result
1977 }
1978
1979 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1980 where
1981 I: IntoIterator<Item = (Range<S>, T)>,
1982 S: ToOffset,
1983 T: Into<Arc<str>>,
1984 {
1985 if self.read_only(cx) {
1986 return;
1987 }
1988
1989 self.buffer
1990 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1991 }
1992
1993 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1994 where
1995 I: IntoIterator<Item = (Range<S>, T)>,
1996 S: ToOffset,
1997 T: Into<Arc<str>>,
1998 {
1999 if self.read_only(cx) {
2000 return;
2001 }
2002
2003 self.buffer.update(cx, |buffer, cx| {
2004 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2005 });
2006 }
2007
2008 pub fn edit_with_block_indent<I, S, T>(
2009 &mut self,
2010 edits: I,
2011 original_indent_columns: Vec<u32>,
2012 cx: &mut ViewContext<Self>,
2013 ) where
2014 I: IntoIterator<Item = (Range<S>, T)>,
2015 S: ToOffset,
2016 T: Into<Arc<str>>,
2017 {
2018 if self.read_only(cx) {
2019 return;
2020 }
2021
2022 self.buffer.update(cx, |buffer, cx| {
2023 buffer.edit(
2024 edits,
2025 Some(AutoindentMode::Block {
2026 original_indent_columns,
2027 }),
2028 cx,
2029 )
2030 });
2031 }
2032
2033 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2034 self.hide_context_menu(cx);
2035
2036 match phase {
2037 SelectPhase::Begin {
2038 position,
2039 add,
2040 click_count,
2041 } => self.begin_selection(position, add, click_count, cx),
2042 SelectPhase::BeginColumnar {
2043 position,
2044 goal_column,
2045 } => self.begin_columnar_selection(position, goal_column, cx),
2046 SelectPhase::Extend {
2047 position,
2048 click_count,
2049 } => self.extend_selection(position, click_count, cx),
2050 SelectPhase::Update {
2051 position,
2052 goal_column,
2053 scroll_delta,
2054 } => self.update_selection(position, goal_column, scroll_delta, cx),
2055 SelectPhase::End => self.end_selection(cx),
2056 }
2057 }
2058
2059 fn extend_selection(
2060 &mut self,
2061 position: DisplayPoint,
2062 click_count: usize,
2063 cx: &mut ViewContext<Self>,
2064 ) {
2065 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2066 let tail = self.selections.newest::<usize>(cx).tail();
2067 self.begin_selection(position, false, click_count, cx);
2068
2069 let position = position.to_offset(&display_map, Bias::Left);
2070 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2071
2072 let mut pending_selection = self
2073 .selections
2074 .pending_anchor()
2075 .expect("extend_selection not called with pending selection");
2076 if position >= tail {
2077 pending_selection.start = tail_anchor;
2078 } else {
2079 pending_selection.end = tail_anchor;
2080 pending_selection.reversed = true;
2081 }
2082
2083 let mut pending_mode = self.selections.pending_mode().unwrap();
2084 match &mut pending_mode {
2085 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2086 _ => {}
2087 }
2088
2089 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2090 s.set_pending(pending_selection, pending_mode)
2091 });
2092 }
2093
2094 fn begin_selection(
2095 &mut self,
2096 position: DisplayPoint,
2097 add: bool,
2098 click_count: usize,
2099 cx: &mut ViewContext<Self>,
2100 ) {
2101 if !self.focus_handle.is_focused(cx) {
2102 cx.focus(&self.focus_handle);
2103 }
2104
2105 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2106 let buffer = &display_map.buffer_snapshot;
2107 let newest_selection = self.selections.newest_anchor().clone();
2108 let position = display_map.clip_point(position, Bias::Left);
2109
2110 let start;
2111 let end;
2112 let mode;
2113 let auto_scroll;
2114 match click_count {
2115 1 => {
2116 start = buffer.anchor_before(position.to_point(&display_map));
2117 end = start;
2118 mode = SelectMode::Character;
2119 auto_scroll = true;
2120 }
2121 2 => {
2122 let range = movement::surrounding_word(&display_map, position);
2123 start = buffer.anchor_before(range.start.to_point(&display_map));
2124 end = buffer.anchor_before(range.end.to_point(&display_map));
2125 mode = SelectMode::Word(start..end);
2126 auto_scroll = true;
2127 }
2128 3 => {
2129 let position = display_map
2130 .clip_point(position, Bias::Left)
2131 .to_point(&display_map);
2132 let line_start = display_map.prev_line_boundary(position).0;
2133 let next_line_start = buffer.clip_point(
2134 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2135 Bias::Left,
2136 );
2137 start = buffer.anchor_before(line_start);
2138 end = buffer.anchor_before(next_line_start);
2139 mode = SelectMode::Line(start..end);
2140 auto_scroll = true;
2141 }
2142 _ => {
2143 start = buffer.anchor_before(0);
2144 end = buffer.anchor_before(buffer.len());
2145 mode = SelectMode::All;
2146 auto_scroll = false;
2147 }
2148 }
2149
2150 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2151 if !add {
2152 s.clear_disjoint();
2153 } else if click_count > 1 {
2154 s.delete(newest_selection.id)
2155 }
2156
2157 s.set_pending_anchor_range(start..end, mode);
2158 });
2159 }
2160
2161 fn begin_columnar_selection(
2162 &mut self,
2163 position: DisplayPoint,
2164 goal_column: u32,
2165 cx: &mut ViewContext<Self>,
2166 ) {
2167 if !self.focus_handle.is_focused(cx) {
2168 cx.focus(&self.focus_handle);
2169 }
2170
2171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2172 let tail = self.selections.newest::<Point>(cx).tail();
2173 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2174
2175 self.select_columns(
2176 tail.to_display_point(&display_map),
2177 position,
2178 goal_column,
2179 &display_map,
2180 cx,
2181 );
2182 }
2183
2184 fn update_selection(
2185 &mut self,
2186 position: DisplayPoint,
2187 goal_column: u32,
2188 scroll_delta: gpui::Point<f32>,
2189 cx: &mut ViewContext<Self>,
2190 ) {
2191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2192
2193 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2194 let tail = tail.to_display_point(&display_map);
2195 self.select_columns(tail, position, goal_column, &display_map, cx);
2196 } else if let Some(mut pending) = self.selections.pending_anchor() {
2197 let buffer = self.buffer.read(cx).snapshot(cx);
2198 let head;
2199 let tail;
2200 let mode = self.selections.pending_mode().unwrap();
2201 match &mode {
2202 SelectMode::Character => {
2203 head = position.to_point(&display_map);
2204 tail = pending.tail().to_point(&buffer);
2205 }
2206 SelectMode::Word(original_range) => {
2207 let original_display_range = original_range.start.to_display_point(&display_map)
2208 ..original_range.end.to_display_point(&display_map);
2209 let original_buffer_range = original_display_range.start.to_point(&display_map)
2210 ..original_display_range.end.to_point(&display_map);
2211 if movement::is_inside_word(&display_map, position)
2212 || original_display_range.contains(&position)
2213 {
2214 let word_range = movement::surrounding_word(&display_map, position);
2215 if word_range.start < original_display_range.start {
2216 head = word_range.start.to_point(&display_map);
2217 } else {
2218 head = word_range.end.to_point(&display_map);
2219 }
2220 } else {
2221 head = position.to_point(&display_map);
2222 }
2223
2224 if head <= original_buffer_range.start {
2225 tail = original_buffer_range.end;
2226 } else {
2227 tail = original_buffer_range.start;
2228 }
2229 }
2230 SelectMode::Line(original_range) => {
2231 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2232
2233 let position = display_map
2234 .clip_point(position, Bias::Left)
2235 .to_point(&display_map);
2236 let line_start = display_map.prev_line_boundary(position).0;
2237 let next_line_start = buffer.clip_point(
2238 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2239 Bias::Left,
2240 );
2241
2242 if line_start < original_range.start {
2243 head = line_start
2244 } else {
2245 head = next_line_start
2246 }
2247
2248 if head <= original_range.start {
2249 tail = original_range.end;
2250 } else {
2251 tail = original_range.start;
2252 }
2253 }
2254 SelectMode::All => {
2255 return;
2256 }
2257 };
2258
2259 if head < tail {
2260 pending.start = buffer.anchor_before(head);
2261 pending.end = buffer.anchor_before(tail);
2262 pending.reversed = true;
2263 } else {
2264 pending.start = buffer.anchor_before(tail);
2265 pending.end = buffer.anchor_before(head);
2266 pending.reversed = false;
2267 }
2268
2269 self.change_selections(None, cx, |s| {
2270 s.set_pending(pending, mode);
2271 });
2272 } else {
2273 log::error!("update_selection dispatched with no pending selection");
2274 return;
2275 }
2276
2277 self.apply_scroll_delta(scroll_delta, cx);
2278 cx.notify();
2279 }
2280
2281 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2282 self.columnar_selection_tail.take();
2283 if self.selections.pending_anchor().is_some() {
2284 let selections = self.selections.all::<usize>(cx);
2285 self.change_selections(None, cx, |s| {
2286 s.select(selections);
2287 s.clear_pending();
2288 });
2289 }
2290 }
2291
2292 fn select_columns(
2293 &mut self,
2294 tail: DisplayPoint,
2295 head: DisplayPoint,
2296 goal_column: u32,
2297 display_map: &DisplaySnapshot,
2298 cx: &mut ViewContext<Self>,
2299 ) {
2300 let start_row = cmp::min(tail.row(), head.row());
2301 let end_row = cmp::max(tail.row(), head.row());
2302 let start_column = cmp::min(tail.column(), goal_column);
2303 let end_column = cmp::max(tail.column(), goal_column);
2304 let reversed = start_column < tail.column();
2305
2306 let selection_ranges = (start_row..=end_row)
2307 .filter_map(|row| {
2308 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2309 let start = display_map
2310 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2311 .to_point(display_map);
2312 let end = display_map
2313 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2314 .to_point(display_map);
2315 if reversed {
2316 Some(end..start)
2317 } else {
2318 Some(start..end)
2319 }
2320 } else {
2321 None
2322 }
2323 })
2324 .collect::<Vec<_>>();
2325
2326 self.change_selections(None, cx, |s| {
2327 s.select_ranges(selection_ranges);
2328 });
2329 cx.notify();
2330 }
2331
2332 pub fn has_pending_nonempty_selection(&self) -> bool {
2333 let pending_nonempty_selection = match self.selections.pending_anchor() {
2334 Some(Selection { start, end, .. }) => start != end,
2335 None => false,
2336 };
2337 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2338 }
2339
2340 pub fn has_pending_selection(&self) -> bool {
2341 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2342 }
2343
2344 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2345 if self.dismiss_menus_and_popups(cx) {
2346 return;
2347 }
2348
2349 if self.mode == EditorMode::Full {
2350 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2351 return;
2352 }
2353 }
2354
2355 cx.propagate();
2356 }
2357
2358 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2359 if self.take_rename(false, cx).is_some() {
2360 return true;
2361 }
2362
2363 if hide_hover(self, cx) {
2364 return true;
2365 }
2366
2367 if self.hide_context_menu(cx).is_some() {
2368 return true;
2369 }
2370
2371 if self.discard_copilot_suggestion(cx) {
2372 return true;
2373 }
2374
2375 if self.snippet_stack.pop().is_some() {
2376 return true;
2377 }
2378
2379 if self.mode == EditorMode::Full {
2380 if self.active_diagnostics.is_some() {
2381 self.dismiss_diagnostics(cx);
2382 return true;
2383 }
2384 }
2385
2386 false
2387 }
2388
2389 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2390 let text: Arc<str> = text.into();
2391
2392 if self.read_only(cx) {
2393 return;
2394 }
2395
2396 let selections = self.selections.all_adjusted(cx);
2397 let mut brace_inserted = false;
2398 let mut edits = Vec::new();
2399 let mut new_selections = Vec::with_capacity(selections.len());
2400 let mut new_autoclose_regions = Vec::new();
2401 let snapshot = self.buffer.read(cx).read(cx);
2402
2403 for (selection, autoclose_region) in
2404 self.selections_with_autoclose_regions(selections, &snapshot)
2405 {
2406 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2407 // Determine if the inserted text matches the opening or closing
2408 // bracket of any of this language's bracket pairs.
2409 let mut bracket_pair = None;
2410 let mut is_bracket_pair_start = false;
2411 if !text.is_empty() {
2412 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2413 // and they are removing the character that triggered IME popup.
2414 for (pair, enabled) in scope.brackets() {
2415 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2416 bracket_pair = Some(pair.clone());
2417 is_bracket_pair_start = true;
2418 break;
2419 } else if pair.end.as_str() == text.as_ref() {
2420 bracket_pair = Some(pair.clone());
2421 break;
2422 }
2423 }
2424 }
2425
2426 if let Some(bracket_pair) = bracket_pair {
2427 if selection.is_empty() {
2428 if is_bracket_pair_start {
2429 let prefix_len = bracket_pair.start.len() - text.len();
2430
2431 // If the inserted text is a suffix of an opening bracket and the
2432 // selection is preceded by the rest of the opening bracket, then
2433 // insert the closing bracket.
2434 let following_text_allows_autoclose = snapshot
2435 .chars_at(selection.start)
2436 .next()
2437 .map_or(true, |c| scope.should_autoclose_before(c));
2438 let preceding_text_matches_prefix = prefix_len == 0
2439 || (selection.start.column >= (prefix_len as u32)
2440 && snapshot.contains_str_at(
2441 Point::new(
2442 selection.start.row,
2443 selection.start.column - (prefix_len as u32),
2444 ),
2445 &bracket_pair.start[..prefix_len],
2446 ));
2447 let autoclose = self.use_autoclose
2448 && snapshot.settings_at(selection.start, cx).use_autoclose;
2449 if autoclose
2450 && following_text_allows_autoclose
2451 && preceding_text_matches_prefix
2452 {
2453 let anchor = snapshot.anchor_before(selection.end);
2454 new_selections.push((selection.map(|_| anchor), text.len()));
2455 new_autoclose_regions.push((
2456 anchor,
2457 text.len(),
2458 selection.id,
2459 bracket_pair.clone(),
2460 ));
2461 edits.push((
2462 selection.range(),
2463 format!("{}{}", text, bracket_pair.end).into(),
2464 ));
2465 brace_inserted = true;
2466 continue;
2467 }
2468 }
2469
2470 if let Some(region) = autoclose_region {
2471 // If the selection is followed by an auto-inserted closing bracket,
2472 // then don't insert that closing bracket again; just move the selection
2473 // past the closing bracket.
2474 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2475 && text.as_ref() == region.pair.end.as_str();
2476 if should_skip {
2477 let anchor = snapshot.anchor_after(selection.end);
2478 new_selections
2479 .push((selection.map(|_| anchor), region.pair.end.len()));
2480 continue;
2481 }
2482 }
2483 }
2484 // If an opening bracket is 1 character long and is typed while
2485 // text is selected, then surround that text with the bracket pair.
2486 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2487 edits.push((selection.start..selection.start, text.clone()));
2488 edits.push((
2489 selection.end..selection.end,
2490 bracket_pair.end.as_str().into(),
2491 ));
2492 brace_inserted = true;
2493 new_selections.push((
2494 Selection {
2495 id: selection.id,
2496 start: snapshot.anchor_after(selection.start),
2497 end: snapshot.anchor_before(selection.end),
2498 reversed: selection.reversed,
2499 goal: selection.goal,
2500 },
2501 0,
2502 ));
2503 continue;
2504 }
2505 }
2506 }
2507
2508 // If not handling any auto-close operation, then just replace the selected
2509 // text with the given input and move the selection to the end of the
2510 // newly inserted text.
2511 let anchor = snapshot.anchor_after(selection.end);
2512 new_selections.push((selection.map(|_| anchor), 0));
2513 edits.push((selection.start..selection.end, text.clone()));
2514 }
2515
2516 drop(snapshot);
2517 self.transact(cx, |this, cx| {
2518 this.buffer.update(cx, |buffer, cx| {
2519 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2520 });
2521
2522 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2523 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2524 let snapshot = this.buffer.read(cx).read(cx);
2525 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2526 .zip(new_selection_deltas)
2527 .map(|(selection, delta)| Selection {
2528 id: selection.id,
2529 start: selection.start + delta,
2530 end: selection.end + delta,
2531 reversed: selection.reversed,
2532 goal: SelectionGoal::None,
2533 })
2534 .collect::<Vec<_>>();
2535
2536 let mut i = 0;
2537 for (position, delta, selection_id, pair) in new_autoclose_regions {
2538 let position = position.to_offset(&snapshot) + delta;
2539 let start = snapshot.anchor_before(position);
2540 let end = snapshot.anchor_after(position);
2541 while let Some(existing_state) = this.autoclose_regions.get(i) {
2542 match existing_state.range.start.cmp(&start, &snapshot) {
2543 Ordering::Less => i += 1,
2544 Ordering::Greater => break,
2545 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2546 Ordering::Less => i += 1,
2547 Ordering::Equal => break,
2548 Ordering::Greater => break,
2549 },
2550 }
2551 }
2552 this.autoclose_regions.insert(
2553 i,
2554 AutocloseRegion {
2555 selection_id,
2556 range: start..end,
2557 pair,
2558 },
2559 );
2560 }
2561
2562 drop(snapshot);
2563 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2564 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2565
2566 if brace_inserted {
2567 // If we inserted a brace while composing text (i.e. typing `"` on a
2568 // Brazilian keyboard), exit the composing state because most likely
2569 // the user wanted to surround the selection.
2570 this.unmark_text(cx);
2571 } else if EditorSettings::get_global(cx).use_on_type_format {
2572 if let Some(on_type_format_task) =
2573 this.trigger_on_type_formatting(text.to_string(), cx)
2574 {
2575 on_type_format_task.detach_and_log_err(cx);
2576 }
2577 }
2578
2579 if had_active_copilot_suggestion {
2580 this.refresh_copilot_suggestions(true, cx);
2581 if !this.has_active_copilot_suggestion(cx) {
2582 this.trigger_completion_on_input(&text, cx);
2583 }
2584 } else {
2585 this.trigger_completion_on_input(&text, cx);
2586 this.refresh_copilot_suggestions(true, cx);
2587 }
2588 });
2589 }
2590
2591 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2592 self.transact(cx, |this, cx| {
2593 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2594 let selections = this.selections.all::<usize>(cx);
2595 let multi_buffer = this.buffer.read(cx);
2596 let buffer = multi_buffer.snapshot(cx);
2597 selections
2598 .iter()
2599 .map(|selection| {
2600 let start_point = selection.start.to_point(&buffer);
2601 let mut indent = buffer.indent_size_for_line(start_point.row);
2602 indent.len = cmp::min(indent.len, start_point.column);
2603 let start = selection.start;
2604 let end = selection.end;
2605 let is_cursor = start == end;
2606 let language_scope = buffer.language_scope_at(start);
2607 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2608 &language_scope
2609 {
2610 let leading_whitespace_len = buffer
2611 .reversed_chars_at(start)
2612 .take_while(|c| c.is_whitespace() && *c != '\n')
2613 .map(|c| c.len_utf8())
2614 .sum::<usize>();
2615
2616 let trailing_whitespace_len = buffer
2617 .chars_at(end)
2618 .take_while(|c| c.is_whitespace() && *c != '\n')
2619 .map(|c| c.len_utf8())
2620 .sum::<usize>();
2621
2622 let insert_extra_newline =
2623 language.brackets().any(|(pair, enabled)| {
2624 let pair_start = pair.start.trim_end();
2625 let pair_end = pair.end.trim_start();
2626
2627 enabled
2628 && pair.newline
2629 && buffer.contains_str_at(
2630 end + trailing_whitespace_len,
2631 pair_end,
2632 )
2633 && buffer.contains_str_at(
2634 (start - leading_whitespace_len)
2635 .saturating_sub(pair_start.len()),
2636 pair_start,
2637 )
2638 });
2639 // Comment extension on newline is allowed only for cursor selections
2640 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2641 let is_comment_extension_enabled =
2642 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2643 is_cursor && is_comment_extension_enabled
2644 });
2645 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2646 let max_len_of_delimiter =
2647 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2648 let (snapshot, range) =
2649 buffer.buffer_line_for_row(start_point.row)?;
2650
2651 let mut index_of_first_non_whitespace = 0;
2652 let comment_candidate = snapshot
2653 .chars_for_range(range)
2654 .skip_while(|c| {
2655 let should_skip = c.is_whitespace();
2656 if should_skip {
2657 index_of_first_non_whitespace += 1;
2658 }
2659 should_skip
2660 })
2661 .take(max_len_of_delimiter)
2662 .collect::<String>();
2663 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2664 comment_candidate.starts_with(comment_prefix.as_ref())
2665 })?;
2666 let cursor_is_placed_after_comment_marker =
2667 index_of_first_non_whitespace + comment_prefix.len()
2668 <= start_point.column as usize;
2669 if cursor_is_placed_after_comment_marker {
2670 Some(comment_prefix.clone())
2671 } else {
2672 None
2673 }
2674 };
2675 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2676 get_comment_delimiter(delimiters)
2677 } else {
2678 None
2679 };
2680 (comment_delimiter, insert_extra_newline)
2681 } else {
2682 (None, false)
2683 };
2684
2685 let capacity_for_delimiter = comment_delimiter
2686 .as_deref()
2687 .map(str::len)
2688 .unwrap_or_default();
2689 let mut new_text =
2690 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2691 new_text.push_str("\n");
2692 new_text.extend(indent.chars());
2693 if let Some(delimiter) = &comment_delimiter {
2694 new_text.push_str(&delimiter);
2695 }
2696 if insert_extra_newline {
2697 new_text = new_text.repeat(2);
2698 }
2699
2700 let anchor = buffer.anchor_after(end);
2701 let new_selection = selection.map(|_| anchor);
2702 (
2703 (start..end, new_text),
2704 (insert_extra_newline, new_selection),
2705 )
2706 })
2707 .unzip()
2708 };
2709
2710 this.edit_with_autoindent(edits, cx);
2711 let buffer = this.buffer.read(cx).snapshot(cx);
2712 let new_selections = selection_fixup_info
2713 .into_iter()
2714 .map(|(extra_newline_inserted, new_selection)| {
2715 let mut cursor = new_selection.end.to_point(&buffer);
2716 if extra_newline_inserted {
2717 cursor.row -= 1;
2718 cursor.column = buffer.line_len(cursor.row);
2719 }
2720 new_selection.map(|_| cursor)
2721 })
2722 .collect();
2723
2724 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2725 this.refresh_copilot_suggestions(true, cx);
2726 });
2727 }
2728
2729 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2730 let buffer = self.buffer.read(cx);
2731 let snapshot = buffer.snapshot(cx);
2732
2733 let mut edits = Vec::new();
2734 let mut rows = Vec::new();
2735
2736 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2737 let cursor = selection.head();
2738 let row = cursor.row;
2739
2740 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2741
2742 let newline = "\n".to_string();
2743 edits.push((start_of_line..start_of_line, newline));
2744
2745 rows.push(row + rows_inserted as u32);
2746 }
2747
2748 self.transact(cx, |editor, cx| {
2749 editor.edit(edits, cx);
2750
2751 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2752 let mut index = 0;
2753 s.move_cursors_with(|map, _, _| {
2754 let row = rows[index];
2755 index += 1;
2756
2757 let point = Point::new(row, 0);
2758 let boundary = map.next_line_boundary(point).1;
2759 let clipped = map.clip_point(boundary, Bias::Left);
2760
2761 (clipped, SelectionGoal::None)
2762 });
2763 });
2764
2765 let mut indent_edits = Vec::new();
2766 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2767 for row in rows {
2768 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2769 for (row, indent) in indents {
2770 if indent.len == 0 {
2771 continue;
2772 }
2773
2774 let text = match indent.kind {
2775 IndentKind::Space => " ".repeat(indent.len as usize),
2776 IndentKind::Tab => "\t".repeat(indent.len as usize),
2777 };
2778 let point = Point::new(row, 0);
2779 indent_edits.push((point..point, text));
2780 }
2781 }
2782 editor.edit(indent_edits, cx);
2783 });
2784 }
2785
2786 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2787 let buffer = self.buffer.read(cx);
2788 let snapshot = buffer.snapshot(cx);
2789
2790 let mut edits = Vec::new();
2791 let mut rows = Vec::new();
2792 let mut rows_inserted = 0;
2793
2794 for selection in self.selections.all_adjusted(cx) {
2795 let cursor = selection.head();
2796 let row = cursor.row;
2797
2798 let point = Point::new(row + 1, 0);
2799 let start_of_line = snapshot.clip_point(point, Bias::Left);
2800
2801 let newline = "\n".to_string();
2802 edits.push((start_of_line..start_of_line, newline));
2803
2804 rows_inserted += 1;
2805 rows.push(row + rows_inserted);
2806 }
2807
2808 self.transact(cx, |editor, cx| {
2809 editor.edit(edits, cx);
2810
2811 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2812 let mut index = 0;
2813 s.move_cursors_with(|map, _, _| {
2814 let row = rows[index];
2815 index += 1;
2816
2817 let point = Point::new(row, 0);
2818 let boundary = map.next_line_boundary(point).1;
2819 let clipped = map.clip_point(boundary, Bias::Left);
2820
2821 (clipped, SelectionGoal::None)
2822 });
2823 });
2824
2825 let mut indent_edits = Vec::new();
2826 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2827 for row in rows {
2828 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2829 for (row, indent) in indents {
2830 if indent.len == 0 {
2831 continue;
2832 }
2833
2834 let text = match indent.kind {
2835 IndentKind::Space => " ".repeat(indent.len as usize),
2836 IndentKind::Tab => "\t".repeat(indent.len as usize),
2837 };
2838 let point = Point::new(row, 0);
2839 indent_edits.push((point..point, text));
2840 }
2841 }
2842 editor.edit(indent_edits, cx);
2843 });
2844 }
2845
2846 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2847 self.insert_with_autoindent_mode(
2848 text,
2849 Some(AutoindentMode::Block {
2850 original_indent_columns: Vec::new(),
2851 }),
2852 cx,
2853 );
2854 }
2855
2856 fn insert_with_autoindent_mode(
2857 &mut self,
2858 text: &str,
2859 autoindent_mode: Option<AutoindentMode>,
2860 cx: &mut ViewContext<Self>,
2861 ) {
2862 if self.read_only(cx) {
2863 return;
2864 }
2865
2866 let text: Arc<str> = text.into();
2867 self.transact(cx, |this, cx| {
2868 let old_selections = this.selections.all_adjusted(cx);
2869 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2870 let anchors = {
2871 let snapshot = buffer.read(cx);
2872 old_selections
2873 .iter()
2874 .map(|s| {
2875 let anchor = snapshot.anchor_after(s.head());
2876 s.map(|_| anchor)
2877 })
2878 .collect::<Vec<_>>()
2879 };
2880 buffer.edit(
2881 old_selections
2882 .iter()
2883 .map(|s| (s.start..s.end, text.clone())),
2884 autoindent_mode,
2885 cx,
2886 );
2887 anchors
2888 });
2889
2890 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2891 s.select_anchors(selection_anchors);
2892 })
2893 });
2894 }
2895
2896 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2897 if !EditorSettings::get_global(cx).show_completions_on_input {
2898 return;
2899 }
2900
2901 let selection = self.selections.newest_anchor();
2902 if self
2903 .buffer
2904 .read(cx)
2905 .is_completion_trigger(selection.head(), text, cx)
2906 {
2907 self.show_completions(&ShowCompletions, cx);
2908 } else {
2909 self.hide_context_menu(cx);
2910 }
2911 }
2912
2913 /// If any empty selections is touching the start of its innermost containing autoclose
2914 /// region, expand it to select the brackets.
2915 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2916 let selections = self.selections.all::<usize>(cx);
2917 let buffer = self.buffer.read(cx).read(cx);
2918 let mut new_selections = Vec::new();
2919 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2920 if let (Some(region), true) = (region, selection.is_empty()) {
2921 let mut range = region.range.to_offset(&buffer);
2922 if selection.start == range.start {
2923 if range.start >= region.pair.start.len() {
2924 range.start -= region.pair.start.len();
2925 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2926 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2927 range.end += region.pair.end.len();
2928 selection.start = range.start;
2929 selection.end = range.end;
2930 }
2931 }
2932 }
2933 }
2934 }
2935 new_selections.push(selection);
2936 }
2937
2938 drop(buffer);
2939 self.change_selections(None, cx, |selections| selections.select(new_selections));
2940 }
2941
2942 /// Iterate the given selections, and for each one, find the smallest surrounding
2943 /// autoclose region. This uses the ordering of the selections and the autoclose
2944 /// regions to avoid repeated comparisons.
2945 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2946 &'a self,
2947 selections: impl IntoIterator<Item = Selection<D>>,
2948 buffer: &'a MultiBufferSnapshot,
2949 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2950 let mut i = 0;
2951 let mut regions = self.autoclose_regions.as_slice();
2952 selections.into_iter().map(move |selection| {
2953 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2954
2955 let mut enclosing = None;
2956 while let Some(pair_state) = regions.get(i) {
2957 if pair_state.range.end.to_offset(buffer) < range.start {
2958 regions = ®ions[i + 1..];
2959 i = 0;
2960 } else if pair_state.range.start.to_offset(buffer) > range.end {
2961 break;
2962 } else {
2963 if pair_state.selection_id == selection.id {
2964 enclosing = Some(pair_state);
2965 }
2966 i += 1;
2967 }
2968 }
2969
2970 (selection.clone(), enclosing)
2971 })
2972 }
2973
2974 /// Remove any autoclose regions that no longer contain their selection.
2975 fn invalidate_autoclose_regions(
2976 &mut self,
2977 mut selections: &[Selection<Anchor>],
2978 buffer: &MultiBufferSnapshot,
2979 ) {
2980 self.autoclose_regions.retain(|state| {
2981 let mut i = 0;
2982 while let Some(selection) = selections.get(i) {
2983 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2984 selections = &selections[1..];
2985 continue;
2986 }
2987 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2988 break;
2989 }
2990 if selection.id == state.selection_id {
2991 return true;
2992 } else {
2993 i += 1;
2994 }
2995 }
2996 false
2997 });
2998 }
2999
3000 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3001 let offset = position.to_offset(buffer);
3002 let (word_range, kind) = buffer.surrounding_word(offset);
3003 if offset > word_range.start && kind == Some(CharKind::Word) {
3004 Some(
3005 buffer
3006 .text_for_range(word_range.start..offset)
3007 .collect::<String>(),
3008 )
3009 } else {
3010 None
3011 }
3012 }
3013
3014 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3015 self.refresh_inlay_hints(
3016 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3017 cx,
3018 );
3019 }
3020
3021 pub fn inlay_hints_enabled(&self) -> bool {
3022 self.inlay_hint_cache.enabled
3023 }
3024
3025 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3026 if self.project.is_none() || self.mode != EditorMode::Full {
3027 return;
3028 }
3029
3030 let reason_description = reason.description();
3031 let ignore_debounce = matches!(
3032 reason,
3033 InlayHintRefreshReason::SettingsChange(_)
3034 | InlayHintRefreshReason::Toggle(_)
3035 | InlayHintRefreshReason::ExcerptsRemoved(_)
3036 );
3037 let (invalidate_cache, required_languages) = match reason {
3038 InlayHintRefreshReason::Toggle(enabled) => {
3039 self.inlay_hint_cache.enabled = enabled;
3040 if enabled {
3041 (InvalidationStrategy::RefreshRequested, None)
3042 } else {
3043 self.inlay_hint_cache.clear();
3044 self.splice_inlay_hints(
3045 self.visible_inlay_hints(cx)
3046 .iter()
3047 .map(|inlay| inlay.id)
3048 .collect(),
3049 Vec::new(),
3050 cx,
3051 );
3052 return;
3053 }
3054 }
3055 InlayHintRefreshReason::SettingsChange(new_settings) => {
3056 match self.inlay_hint_cache.update_settings(
3057 &self.buffer,
3058 new_settings,
3059 self.visible_inlay_hints(cx),
3060 cx,
3061 ) {
3062 ControlFlow::Break(Some(InlaySplice {
3063 to_remove,
3064 to_insert,
3065 })) => {
3066 self.splice_inlay_hints(to_remove, to_insert, cx);
3067 return;
3068 }
3069 ControlFlow::Break(None) => return,
3070 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3071 }
3072 }
3073 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3074 if let Some(InlaySplice {
3075 to_remove,
3076 to_insert,
3077 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3078 {
3079 self.splice_inlay_hints(to_remove, to_insert, cx);
3080 }
3081 return;
3082 }
3083 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3084 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3085 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3086 }
3087 InlayHintRefreshReason::RefreshRequested => {
3088 (InvalidationStrategy::RefreshRequested, None)
3089 }
3090 };
3091
3092 if let Some(InlaySplice {
3093 to_remove,
3094 to_insert,
3095 }) = self.inlay_hint_cache.spawn_hint_refresh(
3096 reason_description,
3097 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3098 invalidate_cache,
3099 ignore_debounce,
3100 cx,
3101 ) {
3102 self.splice_inlay_hints(to_remove, to_insert, cx);
3103 }
3104 }
3105
3106 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3107 self.display_map
3108 .read(cx)
3109 .current_inlays()
3110 .filter(move |inlay| {
3111 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3112 })
3113 .cloned()
3114 .collect()
3115 }
3116
3117 pub fn excerpts_for_inlay_hints_query(
3118 &self,
3119 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3120 cx: &mut ViewContext<Editor>,
3121 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3122 let Some(project) = self.project.as_ref() else {
3123 return HashMap::default();
3124 };
3125 let project = project.read(cx);
3126 let multi_buffer = self.buffer().read(cx);
3127 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3128 let multi_buffer_visible_start = self
3129 .scroll_manager
3130 .anchor()
3131 .anchor
3132 .to_point(&multi_buffer_snapshot);
3133 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3134 multi_buffer_visible_start
3135 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3136 Bias::Left,
3137 );
3138 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3139 multi_buffer
3140 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3141 .into_iter()
3142 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3143 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3144 let buffer = buffer_handle.read(cx);
3145 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3146 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3147 let worktree_entry = buffer_worktree
3148 .read(cx)
3149 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3150 if worktree_entry.is_ignored {
3151 return None;
3152 }
3153
3154 let language = buffer.language()?;
3155 if let Some(restrict_to_languages) = restrict_to_languages {
3156 if !restrict_to_languages.contains(language) {
3157 return None;
3158 }
3159 }
3160 Some((
3161 excerpt_id,
3162 (
3163 buffer_handle,
3164 buffer.version().clone(),
3165 excerpt_visible_range,
3166 ),
3167 ))
3168 })
3169 .collect()
3170 }
3171
3172 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3173 TextLayoutDetails {
3174 text_system: cx.text_system().clone(),
3175 editor_style: self.style.clone().unwrap(),
3176 rem_size: cx.rem_size(),
3177 scroll_anchor: self.scroll_manager.anchor(),
3178 visible_rows: self.visible_line_count(),
3179 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3180 }
3181 }
3182
3183 fn splice_inlay_hints(
3184 &self,
3185 to_remove: Vec<InlayId>,
3186 to_insert: Vec<Inlay>,
3187 cx: &mut ViewContext<Self>,
3188 ) {
3189 self.display_map.update(cx, |display_map, cx| {
3190 display_map.splice_inlays(to_remove, to_insert, cx);
3191 });
3192 cx.notify();
3193 }
3194
3195 fn trigger_on_type_formatting(
3196 &self,
3197 input: String,
3198 cx: &mut ViewContext<Self>,
3199 ) -> Option<Task<Result<()>>> {
3200 if input.len() != 1 {
3201 return None;
3202 }
3203
3204 let project = self.project.as_ref()?;
3205 let position = self.selections.newest_anchor().head();
3206 let (buffer, buffer_position) = self
3207 .buffer
3208 .read(cx)
3209 .text_anchor_for_position(position, cx)?;
3210
3211 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3212 // hence we do LSP request & edit on host side only — add formats to host's history.
3213 let push_to_lsp_host_history = true;
3214 // If this is not the host, append its history with new edits.
3215 let push_to_client_history = project.read(cx).is_remote();
3216
3217 let on_type_formatting = project.update(cx, |project, cx| {
3218 project.on_type_format(
3219 buffer.clone(),
3220 buffer_position,
3221 input,
3222 push_to_lsp_host_history,
3223 cx,
3224 )
3225 });
3226 Some(cx.spawn(|editor, mut cx| async move {
3227 if let Some(transaction) = on_type_formatting.await? {
3228 if push_to_client_history {
3229 buffer
3230 .update(&mut cx, |buffer, _| {
3231 buffer.push_transaction(transaction, Instant::now());
3232 })
3233 .ok();
3234 }
3235 editor.update(&mut cx, |editor, cx| {
3236 editor.refresh_document_highlights(cx);
3237 })?;
3238 }
3239 Ok(())
3240 }))
3241 }
3242
3243 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3244 if self.pending_rename.is_some() {
3245 return;
3246 }
3247
3248 let Some(provider) = self.completion_provider.as_ref() else {
3249 return;
3250 };
3251
3252 let position = self.selections.newest_anchor().head();
3253 let (buffer, buffer_position) =
3254 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3255 output
3256 } else {
3257 return;
3258 };
3259
3260 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3261 let completions = provider.completions(&buffer, buffer_position, cx);
3262
3263 let id = post_inc(&mut self.next_completion_id);
3264 let task = cx.spawn(|this, mut cx| {
3265 async move {
3266 let completions = completions.await.log_err();
3267 let menu = if let Some(completions) = completions {
3268 let mut menu = CompletionsMenu {
3269 id,
3270 initial_position: position,
3271 match_candidates: completions
3272 .iter()
3273 .enumerate()
3274 .map(|(id, completion)| {
3275 StringMatchCandidate::new(
3276 id,
3277 completion.label.text[completion.label.filter_range.clone()]
3278 .into(),
3279 )
3280 })
3281 .collect(),
3282 buffer,
3283 completions: Arc::new(RwLock::new(completions.into())),
3284 matches: Vec::new().into(),
3285 selected_item: 0,
3286 scroll_handle: UniformListScrollHandle::new(),
3287 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3288 DebouncedDelay::new(),
3289 )),
3290 };
3291 menu.filter(query.as_deref(), cx.background_executor().clone())
3292 .await;
3293
3294 if menu.matches.is_empty() {
3295 None
3296 } else {
3297 this.update(&mut cx, |editor, cx| {
3298 let completions = menu.completions.clone();
3299 let matches = menu.matches.clone();
3300
3301 let delay_ms = EditorSettings::get_global(cx)
3302 .completion_documentation_secondary_query_debounce;
3303 let delay = Duration::from_millis(delay_ms);
3304
3305 editor
3306 .completion_documentation_pre_resolve_debounce
3307 .fire_new(delay, cx, |editor, cx| {
3308 CompletionsMenu::pre_resolve_completion_documentation(
3309 completions,
3310 matches,
3311 editor,
3312 cx,
3313 )
3314 });
3315 })
3316 .ok();
3317 Some(menu)
3318 }
3319 } else {
3320 None
3321 };
3322
3323 this.update(&mut cx, |this, cx| {
3324 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3325
3326 let mut context_menu = this.context_menu.write();
3327 match context_menu.as_ref() {
3328 None => {}
3329
3330 Some(ContextMenu::Completions(prev_menu)) => {
3331 if prev_menu.id > id {
3332 return;
3333 }
3334 }
3335
3336 _ => return,
3337 }
3338
3339 if this.focus_handle.is_focused(cx) && menu.is_some() {
3340 let menu = menu.unwrap();
3341 *context_menu = Some(ContextMenu::Completions(menu));
3342 drop(context_menu);
3343 this.discard_copilot_suggestion(cx);
3344 cx.notify();
3345 } else if this.completion_tasks.len() <= 1 {
3346 // If there are no more completion tasks and the last menu was
3347 // empty, we should hide it. If it was already hidden, we should
3348 // also show the copilot suggestion when available.
3349 drop(context_menu);
3350 if this.hide_context_menu(cx).is_none() {
3351 this.update_visible_copilot_suggestion(cx);
3352 }
3353 }
3354 })?;
3355
3356 Ok::<_, anyhow::Error>(())
3357 }
3358 .log_err()
3359 });
3360
3361 self.completion_tasks.push((id, task));
3362 }
3363
3364 pub fn confirm_completion(
3365 &mut self,
3366 action: &ConfirmCompletion,
3367 cx: &mut ViewContext<Self>,
3368 ) -> Option<Task<Result<()>>> {
3369 use language::ToOffset as _;
3370
3371 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3372 menu
3373 } else {
3374 return None;
3375 };
3376
3377 let mat = completions_menu
3378 .matches
3379 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3380 let buffer_handle = completions_menu.buffer;
3381 let completions = completions_menu.completions.read();
3382 let completion = completions.get(mat.candidate_id)?;
3383 cx.stop_propagation();
3384
3385 let snippet;
3386 let text;
3387 if completion.is_snippet() {
3388 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3389 text = snippet.as_ref().unwrap().text.clone();
3390 } else {
3391 snippet = None;
3392 text = completion.new_text.clone();
3393 };
3394 let selections = self.selections.all::<usize>(cx);
3395 let buffer = buffer_handle.read(cx);
3396 let old_range = completion.old_range.to_offset(buffer);
3397 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3398
3399 let newest_selection = self.selections.newest_anchor();
3400 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3401 return None;
3402 }
3403
3404 let lookbehind = newest_selection
3405 .start
3406 .text_anchor
3407 .to_offset(buffer)
3408 .saturating_sub(old_range.start);
3409 let lookahead = old_range
3410 .end
3411 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3412 let mut common_prefix_len = old_text
3413 .bytes()
3414 .zip(text.bytes())
3415 .take_while(|(a, b)| a == b)
3416 .count();
3417
3418 let snapshot = self.buffer.read(cx).snapshot(cx);
3419 let mut range_to_replace: Option<Range<isize>> = None;
3420 let mut ranges = Vec::new();
3421 for selection in &selections {
3422 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3423 let start = selection.start.saturating_sub(lookbehind);
3424 let end = selection.end + lookahead;
3425 if selection.id == newest_selection.id {
3426 range_to_replace = Some(
3427 ((start + common_prefix_len) as isize - selection.start as isize)
3428 ..(end as isize - selection.start as isize),
3429 );
3430 }
3431 ranges.push(start + common_prefix_len..end);
3432 } else {
3433 common_prefix_len = 0;
3434 ranges.clear();
3435 ranges.extend(selections.iter().map(|s| {
3436 if s.id == newest_selection.id {
3437 range_to_replace = Some(
3438 old_range.start.to_offset_utf16(&snapshot).0 as isize
3439 - selection.start as isize
3440 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3441 - selection.start as isize,
3442 );
3443 old_range.clone()
3444 } else {
3445 s.start..s.end
3446 }
3447 }));
3448 break;
3449 }
3450 }
3451 let text = &text[common_prefix_len..];
3452
3453 cx.emit(EditorEvent::InputHandled {
3454 utf16_range_to_replace: range_to_replace,
3455 text: text.into(),
3456 });
3457
3458 self.transact(cx, |this, cx| {
3459 if let Some(mut snippet) = snippet {
3460 snippet.text = text.to_string();
3461 for tabstop in snippet.tabstops.iter_mut().flatten() {
3462 tabstop.start -= common_prefix_len as isize;
3463 tabstop.end -= common_prefix_len as isize;
3464 }
3465
3466 this.insert_snippet(&ranges, snippet, cx).log_err();
3467 } else {
3468 this.buffer.update(cx, |buffer, cx| {
3469 buffer.edit(
3470 ranges.iter().map(|range| (range.clone(), text)),
3471 this.autoindent_mode.clone(),
3472 cx,
3473 );
3474 });
3475 }
3476
3477 this.refresh_copilot_suggestions(true, cx);
3478 });
3479
3480 let provider = self.completion_provider.as_ref()?;
3481 let apply_edits = provider.apply_additional_edits_for_completion(
3482 buffer_handle,
3483 completion.clone(),
3484 true,
3485 cx,
3486 );
3487 Some(cx.foreground_executor().spawn(async move {
3488 apply_edits.await?;
3489 Ok(())
3490 }))
3491 }
3492
3493 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3494 let mut context_menu = self.context_menu.write();
3495 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3496 *context_menu = None;
3497 cx.notify();
3498 return;
3499 }
3500 drop(context_menu);
3501
3502 let deployed_from_indicator = action.deployed_from_indicator;
3503 let mut task = self.code_actions_task.take();
3504 cx.spawn(|this, mut cx| async move {
3505 while let Some(prev_task) = task {
3506 prev_task.await;
3507 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3508 }
3509
3510 this.update(&mut cx, |this, cx| {
3511 if this.focus_handle.is_focused(cx) {
3512 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3513 this.completion_tasks.clear();
3514 this.discard_copilot_suggestion(cx);
3515 *this.context_menu.write() =
3516 Some(ContextMenu::CodeActions(CodeActionsMenu {
3517 buffer,
3518 actions,
3519 selected_item: Default::default(),
3520 scroll_handle: UniformListScrollHandle::default(),
3521 deployed_from_indicator,
3522 }));
3523 cx.notify();
3524 }
3525 }
3526 })?;
3527
3528 Ok::<_, anyhow::Error>(())
3529 })
3530 .detach_and_log_err(cx);
3531 }
3532
3533 pub fn confirm_code_action(
3534 &mut self,
3535 action: &ConfirmCodeAction,
3536 cx: &mut ViewContext<Self>,
3537 ) -> Option<Task<Result<()>>> {
3538 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3539 menu
3540 } else {
3541 return None;
3542 };
3543 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3544 let action = actions_menu.actions.get(action_ix)?.clone();
3545 let title = action.lsp_action.title.clone();
3546 let buffer = actions_menu.buffer;
3547 let workspace = self.workspace()?;
3548
3549 let apply_code_actions = workspace
3550 .read(cx)
3551 .project()
3552 .clone()
3553 .update(cx, |project, cx| {
3554 project.apply_code_action(buffer, action, true, cx)
3555 });
3556 let workspace = workspace.downgrade();
3557 Some(cx.spawn(|editor, cx| async move {
3558 let project_transaction = apply_code_actions.await?;
3559 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3560 }))
3561 }
3562
3563 async fn open_project_transaction(
3564 this: &WeakView<Editor>,
3565 workspace: WeakView<Workspace>,
3566 transaction: ProjectTransaction,
3567 title: String,
3568 mut cx: AsyncWindowContext,
3569 ) -> Result<()> {
3570 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3571
3572 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3573 cx.update(|cx| {
3574 entries.sort_unstable_by_key(|(buffer, _)| {
3575 buffer.read(cx).file().map(|f| f.path().clone())
3576 });
3577 })?;
3578
3579 // If the project transaction's edits are all contained within this editor, then
3580 // avoid opening a new editor to display them.
3581
3582 if let Some((buffer, transaction)) = entries.first() {
3583 if entries.len() == 1 {
3584 let excerpt = this.update(&mut cx, |editor, cx| {
3585 editor
3586 .buffer()
3587 .read(cx)
3588 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3589 })?;
3590 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3591 if excerpted_buffer == *buffer {
3592 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3593 let excerpt_range = excerpt_range.to_offset(buffer);
3594 buffer
3595 .edited_ranges_for_transaction::<usize>(transaction)
3596 .all(|range| {
3597 excerpt_range.start <= range.start
3598 && excerpt_range.end >= range.end
3599 })
3600 })?;
3601
3602 if all_edits_within_excerpt {
3603 return Ok(());
3604 }
3605 }
3606 }
3607 }
3608 } else {
3609 return Ok(());
3610 }
3611
3612 let mut ranges_to_highlight = Vec::new();
3613 let excerpt_buffer = cx.new_model(|cx| {
3614 let mut multibuffer =
3615 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3616 for (buffer_handle, transaction) in &entries {
3617 let buffer = buffer_handle.read(cx);
3618 ranges_to_highlight.extend(
3619 multibuffer.push_excerpts_with_context_lines(
3620 buffer_handle.clone(),
3621 buffer
3622 .edited_ranges_for_transaction::<usize>(transaction)
3623 .collect(),
3624 1,
3625 cx,
3626 ),
3627 );
3628 }
3629 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3630 multibuffer
3631 })?;
3632
3633 workspace.update(&mut cx, |workspace, cx| {
3634 let project = workspace.project().clone();
3635 let editor =
3636 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3637 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3638 editor.update(cx, |editor, cx| {
3639 editor.highlight_background::<Self>(
3640 ranges_to_highlight,
3641 |theme| theme.editor_highlighted_line_background,
3642 cx,
3643 );
3644 });
3645 })?;
3646
3647 Ok(())
3648 }
3649
3650 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3651 let project = self.project.clone()?;
3652 let buffer = self.buffer.read(cx);
3653 let newest_selection = self.selections.newest_anchor().clone();
3654 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3655 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3656 if start_buffer != end_buffer {
3657 return None;
3658 }
3659
3660 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3661 cx.background_executor()
3662 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3663 .await;
3664
3665 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3666 project.code_actions(&start_buffer, start..end, cx)
3667 }) {
3668 code_actions.await.log_err()
3669 } else {
3670 None
3671 };
3672
3673 this.update(&mut cx, |this, cx| {
3674 this.available_code_actions = actions.and_then(|actions| {
3675 if actions.is_empty() {
3676 None
3677 } else {
3678 Some((start_buffer, actions.into()))
3679 }
3680 });
3681 cx.notify();
3682 })
3683 .log_err();
3684 }));
3685 None
3686 }
3687
3688 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3689 if self.pending_rename.is_some() {
3690 return None;
3691 }
3692
3693 let project = self.project.clone()?;
3694 let buffer = self.buffer.read(cx);
3695 let newest_selection = self.selections.newest_anchor().clone();
3696 let cursor_position = newest_selection.head();
3697 let (cursor_buffer, cursor_buffer_position) =
3698 buffer.text_anchor_for_position(cursor_position, cx)?;
3699 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3700 if cursor_buffer != tail_buffer {
3701 return None;
3702 }
3703
3704 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3705 cx.background_executor()
3706 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3707 .await;
3708
3709 let highlights = if let Some(highlights) = project
3710 .update(&mut cx, |project, cx| {
3711 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3712 })
3713 .log_err()
3714 {
3715 highlights.await.log_err()
3716 } else {
3717 None
3718 };
3719
3720 if let Some(highlights) = highlights {
3721 this.update(&mut cx, |this, cx| {
3722 if this.pending_rename.is_some() {
3723 return;
3724 }
3725
3726 let buffer_id = cursor_position.buffer_id;
3727 let buffer = this.buffer.read(cx);
3728 if !buffer
3729 .text_anchor_for_position(cursor_position, cx)
3730 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3731 {
3732 return;
3733 }
3734
3735 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3736 let mut write_ranges = Vec::new();
3737 let mut read_ranges = Vec::new();
3738 for highlight in highlights {
3739 for (excerpt_id, excerpt_range) in
3740 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3741 {
3742 let start = highlight
3743 .range
3744 .start
3745 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3746 let end = highlight
3747 .range
3748 .end
3749 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3750 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3751 continue;
3752 }
3753
3754 let range = Anchor {
3755 buffer_id,
3756 excerpt_id: excerpt_id,
3757 text_anchor: start,
3758 }..Anchor {
3759 buffer_id,
3760 excerpt_id,
3761 text_anchor: end,
3762 };
3763 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3764 write_ranges.push(range);
3765 } else {
3766 read_ranges.push(range);
3767 }
3768 }
3769 }
3770
3771 this.highlight_background::<DocumentHighlightRead>(
3772 read_ranges,
3773 |theme| theme.editor_document_highlight_read_background,
3774 cx,
3775 );
3776 this.highlight_background::<DocumentHighlightWrite>(
3777 write_ranges,
3778 |theme| theme.editor_document_highlight_write_background,
3779 cx,
3780 );
3781 cx.notify();
3782 })
3783 .log_err();
3784 }
3785 }));
3786 None
3787 }
3788
3789 fn refresh_copilot_suggestions(
3790 &mut self,
3791 debounce: bool,
3792 cx: &mut ViewContext<Self>,
3793 ) -> Option<()> {
3794 let copilot = Copilot::global(cx)?;
3795 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3796 self.clear_copilot_suggestions(cx);
3797 return None;
3798 }
3799 self.update_visible_copilot_suggestion(cx);
3800
3801 let snapshot = self.buffer.read(cx).snapshot(cx);
3802 let cursor = self.selections.newest_anchor().head();
3803 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3804 self.clear_copilot_suggestions(cx);
3805 return None;
3806 }
3807
3808 let (buffer, buffer_position) =
3809 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3810 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3811 if debounce {
3812 cx.background_executor()
3813 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3814 .await;
3815 }
3816
3817 let completions = copilot
3818 .update(&mut cx, |copilot, cx| {
3819 copilot.completions(&buffer, buffer_position, cx)
3820 })
3821 .log_err()
3822 .unwrap_or(Task::ready(Ok(Vec::new())))
3823 .await
3824 .log_err()
3825 .into_iter()
3826 .flatten()
3827 .collect_vec();
3828
3829 this.update(&mut cx, |this, cx| {
3830 if !completions.is_empty() {
3831 this.copilot_state.cycled = false;
3832 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3833 this.copilot_state.completions.clear();
3834 this.copilot_state.active_completion_index = 0;
3835 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3836 for completion in completions {
3837 this.copilot_state.push_completion(completion);
3838 }
3839 this.update_visible_copilot_suggestion(cx);
3840 }
3841 })
3842 .log_err()?;
3843 Some(())
3844 });
3845
3846 Some(())
3847 }
3848
3849 fn cycle_copilot_suggestions(
3850 &mut self,
3851 direction: Direction,
3852 cx: &mut ViewContext<Self>,
3853 ) -> Option<()> {
3854 let copilot = Copilot::global(cx)?;
3855 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3856 return None;
3857 }
3858
3859 if self.copilot_state.cycled {
3860 self.copilot_state.cycle_completions(direction);
3861 self.update_visible_copilot_suggestion(cx);
3862 } else {
3863 let cursor = self.selections.newest_anchor().head();
3864 let (buffer, buffer_position) =
3865 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3866 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3867 let completions = copilot
3868 .update(&mut cx, |copilot, cx| {
3869 copilot.completions_cycling(&buffer, buffer_position, cx)
3870 })
3871 .log_err()?
3872 .await;
3873
3874 this.update(&mut cx, |this, cx| {
3875 this.copilot_state.cycled = true;
3876 for completion in completions.log_err().into_iter().flatten() {
3877 this.copilot_state.push_completion(completion);
3878 }
3879 this.copilot_state.cycle_completions(direction);
3880 this.update_visible_copilot_suggestion(cx);
3881 })
3882 .log_err()?;
3883
3884 Some(())
3885 });
3886 }
3887
3888 Some(())
3889 }
3890
3891 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3892 if !self.has_active_copilot_suggestion(cx) {
3893 self.refresh_copilot_suggestions(false, cx);
3894 return;
3895 }
3896
3897 self.update_visible_copilot_suggestion(cx);
3898 }
3899
3900 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3901 self.show_cursor_names(cx);
3902 }
3903
3904 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3905 self.show_cursor_names = true;
3906 cx.notify();
3907 cx.spawn(|this, mut cx| async move {
3908 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3909 this.update(&mut cx, |this, cx| {
3910 this.show_cursor_names = false;
3911 cx.notify()
3912 })
3913 .ok()
3914 })
3915 .detach();
3916 }
3917
3918 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3919 if self.has_active_copilot_suggestion(cx) {
3920 self.cycle_copilot_suggestions(Direction::Next, cx);
3921 } else {
3922 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3923 if is_copilot_disabled {
3924 cx.propagate();
3925 }
3926 }
3927 }
3928
3929 fn previous_copilot_suggestion(
3930 &mut self,
3931 _: &copilot::PreviousSuggestion,
3932 cx: &mut ViewContext<Self>,
3933 ) {
3934 if self.has_active_copilot_suggestion(cx) {
3935 self.cycle_copilot_suggestions(Direction::Prev, cx);
3936 } else {
3937 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3938 if is_copilot_disabled {
3939 cx.propagate();
3940 }
3941 }
3942 }
3943
3944 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3945 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3946 if let Some((copilot, completion)) =
3947 Copilot::global(cx).zip(self.copilot_state.active_completion())
3948 {
3949 copilot
3950 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3951 .detach_and_log_err(cx);
3952
3953 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3954 }
3955 cx.emit(EditorEvent::InputHandled {
3956 utf16_range_to_replace: None,
3957 text: suggestion.text.to_string().into(),
3958 });
3959 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3960 cx.notify();
3961 true
3962 } else {
3963 false
3964 }
3965 }
3966
3967 fn accept_partial_copilot_suggestion(
3968 &mut self,
3969 _: &AcceptPartialCopilotSuggestion,
3970 cx: &mut ViewContext<Self>,
3971 ) {
3972 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
3973 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3974 let mut partial_suggestion = suggestion
3975 .text
3976 .chars()
3977 .by_ref()
3978 .take_while(|c| c.is_alphabetic())
3979 .collect::<String>();
3980 if partial_suggestion.is_empty() {
3981 partial_suggestion = suggestion
3982 .text
3983 .chars()
3984 .by_ref()
3985 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
3986 .collect::<String>();
3987 }
3988
3989 cx.emit(EditorEvent::InputHandled {
3990 utf16_range_to_replace: None,
3991 text: partial_suggestion.clone().into(),
3992 });
3993 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
3994 self.refresh_copilot_suggestions(true, cx);
3995 cx.notify();
3996 }
3997 }
3998 }
3999
4000 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4001 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4002 if let Some(copilot) = Copilot::global(cx) {
4003 copilot
4004 .update(cx, |copilot, cx| {
4005 copilot.discard_completions(&self.copilot_state.completions, cx)
4006 })
4007 .detach_and_log_err(cx);
4008
4009 self.report_copilot_event(None, false, cx)
4010 }
4011
4012 self.display_map.update(cx, |map, cx| {
4013 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4014 });
4015 cx.notify();
4016 true
4017 } else {
4018 false
4019 }
4020 }
4021
4022 fn is_copilot_enabled_at(
4023 &self,
4024 location: Anchor,
4025 snapshot: &MultiBufferSnapshot,
4026 cx: &mut ViewContext<Self>,
4027 ) -> bool {
4028 let file = snapshot.file_at(location);
4029 let language = snapshot.language_at(location);
4030 let settings = all_language_settings(file, cx);
4031 self.show_copilot_suggestions
4032 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4033 }
4034
4035 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4036 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4037 let buffer = self.buffer.read(cx).read(cx);
4038 suggestion.position.is_valid(&buffer)
4039 } else {
4040 false
4041 }
4042 }
4043
4044 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4045 let suggestion = self.copilot_state.suggestion.take()?;
4046 self.display_map.update(cx, |map, cx| {
4047 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4048 });
4049 let buffer = self.buffer.read(cx).read(cx);
4050
4051 if suggestion.position.is_valid(&buffer) {
4052 Some(suggestion)
4053 } else {
4054 None
4055 }
4056 }
4057
4058 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4059 let snapshot = self.buffer.read(cx).snapshot(cx);
4060 let selection = self.selections.newest_anchor();
4061 let cursor = selection.head();
4062
4063 if self.context_menu.read().is_some()
4064 || !self.completion_tasks.is_empty()
4065 || selection.start != selection.end
4066 {
4067 self.discard_copilot_suggestion(cx);
4068 } else if let Some(text) = self
4069 .copilot_state
4070 .text_for_active_completion(cursor, &snapshot)
4071 {
4072 let text = Rope::from(text);
4073 let mut to_remove = Vec::new();
4074 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4075 to_remove.push(suggestion.id);
4076 }
4077
4078 let suggestion_inlay =
4079 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4080 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4081 self.display_map.update(cx, move |map, cx| {
4082 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4083 });
4084 cx.notify();
4085 } else {
4086 self.discard_copilot_suggestion(cx);
4087 }
4088 }
4089
4090 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4091 self.copilot_state = Default::default();
4092 self.discard_copilot_suggestion(cx);
4093 }
4094
4095 pub fn render_code_actions_indicator(
4096 &self,
4097 _style: &EditorStyle,
4098 is_active: bool,
4099 cx: &mut ViewContext<Self>,
4100 ) -> Option<IconButton> {
4101 if self.available_code_actions.is_some() {
4102 Some(
4103 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4104 .icon_size(IconSize::XSmall)
4105 .size(ui::ButtonSize::None)
4106 .icon_color(Color::Muted)
4107 .selected(is_active)
4108 .on_click(cx.listener(|editor, _e, cx| {
4109 editor.toggle_code_actions(
4110 &ToggleCodeActions {
4111 deployed_from_indicator: true,
4112 },
4113 cx,
4114 );
4115 })),
4116 )
4117 } else {
4118 None
4119 }
4120 }
4121
4122 pub fn render_fold_indicators(
4123 &self,
4124 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4125 _style: &EditorStyle,
4126 gutter_hovered: bool,
4127 _line_height: Pixels,
4128 _gutter_margin: Pixels,
4129 editor_view: View<Editor>,
4130 ) -> Vec<Option<IconButton>> {
4131 fold_data
4132 .iter()
4133 .enumerate()
4134 .map(|(ix, fold_data)| {
4135 fold_data
4136 .map(|(fold_status, buffer_row, active)| {
4137 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4138 IconButton::new(ix, ui::IconName::ChevronDown)
4139 .on_click({
4140 let view = editor_view.clone();
4141 move |_e, cx| {
4142 view.update(cx, |editor, cx| match fold_status {
4143 FoldStatus::Folded => {
4144 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4145 }
4146 FoldStatus::Foldable => {
4147 editor.fold_at(&FoldAt { buffer_row }, cx);
4148 }
4149 })
4150 }
4151 })
4152 .icon_color(ui::Color::Muted)
4153 .icon_size(ui::IconSize::Small)
4154 .selected(fold_status == FoldStatus::Folded)
4155 .selected_icon(ui::IconName::ChevronRight)
4156 .size(ui::ButtonSize::None)
4157 })
4158 })
4159 .flatten()
4160 })
4161 .collect()
4162 }
4163
4164 pub fn context_menu_visible(&self) -> bool {
4165 self.context_menu
4166 .read()
4167 .as_ref()
4168 .map_or(false, |menu| menu.visible())
4169 }
4170
4171 pub fn render_context_menu(
4172 &self,
4173 cursor_position: DisplayPoint,
4174 style: &EditorStyle,
4175 max_height: Pixels,
4176 cx: &mut ViewContext<Editor>,
4177 ) -> Option<(DisplayPoint, AnyElement)> {
4178 self.context_menu.read().as_ref().map(|menu| {
4179 menu.render(
4180 cursor_position,
4181 style,
4182 max_height,
4183 self.workspace.as_ref().map(|(w, _)| w.clone()),
4184 cx,
4185 )
4186 })
4187 }
4188
4189 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4190 cx.notify();
4191 self.completion_tasks.clear();
4192 let context_menu = self.context_menu.write().take();
4193 if context_menu.is_some() {
4194 self.update_visible_copilot_suggestion(cx);
4195 }
4196 context_menu
4197 }
4198
4199 pub fn insert_snippet(
4200 &mut self,
4201 insertion_ranges: &[Range<usize>],
4202 snippet: Snippet,
4203 cx: &mut ViewContext<Self>,
4204 ) -> Result<()> {
4205 let tabstops = self.buffer.update(cx, |buffer, cx| {
4206 let snippet_text: Arc<str> = snippet.text.clone().into();
4207 buffer.edit(
4208 insertion_ranges
4209 .iter()
4210 .cloned()
4211 .map(|range| (range, snippet_text.clone())),
4212 Some(AutoindentMode::EachLine),
4213 cx,
4214 );
4215
4216 let snapshot = &*buffer.read(cx);
4217 let snippet = &snippet;
4218 snippet
4219 .tabstops
4220 .iter()
4221 .map(|tabstop| {
4222 let mut tabstop_ranges = tabstop
4223 .iter()
4224 .flat_map(|tabstop_range| {
4225 let mut delta = 0_isize;
4226 insertion_ranges.iter().map(move |insertion_range| {
4227 let insertion_start = insertion_range.start as isize + delta;
4228 delta +=
4229 snippet.text.len() as isize - insertion_range.len() as isize;
4230
4231 let start = snapshot.anchor_before(
4232 (insertion_start + tabstop_range.start) as usize,
4233 );
4234 let end = snapshot
4235 .anchor_after((insertion_start + tabstop_range.end) as usize);
4236 start..end
4237 })
4238 })
4239 .collect::<Vec<_>>();
4240 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4241 tabstop_ranges
4242 })
4243 .collect::<Vec<_>>()
4244 });
4245
4246 if let Some(tabstop) = tabstops.first() {
4247 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4248 s.select_ranges(tabstop.iter().cloned());
4249 });
4250 self.snippet_stack.push(SnippetState {
4251 active_index: 0,
4252 ranges: tabstops,
4253 });
4254
4255 // Check whether the just-entered snippet ends with an auto-closable bracket.
4256 if self.autoclose_regions.is_empty() {
4257 let snapshot = self.buffer.read(cx).snapshot(cx);
4258 for selection in &mut self.selections.all::<Point>(cx) {
4259 let selection_head = selection.head();
4260 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4261 continue;
4262 };
4263
4264 let mut bracket_pair = None;
4265 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4266 let prev_chars = snapshot
4267 .reversed_chars_at(selection_head)
4268 .collect::<String>();
4269 for (pair, enabled) in scope.brackets() {
4270 if enabled
4271 && pair.close
4272 && prev_chars.starts_with(pair.start.as_str())
4273 && next_chars.starts_with(pair.end.as_str())
4274 {
4275 bracket_pair = Some(pair.clone());
4276 break;
4277 }
4278 }
4279 if let Some(pair) = bracket_pair {
4280 let start = snapshot.anchor_after(selection_head);
4281 let end = snapshot.anchor_after(selection_head);
4282 self.autoclose_regions.push(AutocloseRegion {
4283 selection_id: selection.id,
4284 range: start..end,
4285 pair,
4286 });
4287 }
4288 }
4289 }
4290 }
4291 Ok(())
4292 }
4293
4294 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4295 self.move_to_snippet_tabstop(Bias::Right, cx)
4296 }
4297
4298 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4299 self.move_to_snippet_tabstop(Bias::Left, cx)
4300 }
4301
4302 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4303 if let Some(mut snippet) = self.snippet_stack.pop() {
4304 match bias {
4305 Bias::Left => {
4306 if snippet.active_index > 0 {
4307 snippet.active_index -= 1;
4308 } else {
4309 self.snippet_stack.push(snippet);
4310 return false;
4311 }
4312 }
4313 Bias::Right => {
4314 if snippet.active_index + 1 < snippet.ranges.len() {
4315 snippet.active_index += 1;
4316 } else {
4317 self.snippet_stack.push(snippet);
4318 return false;
4319 }
4320 }
4321 }
4322 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4324 s.select_anchor_ranges(current_ranges.iter().cloned())
4325 });
4326 // If snippet state is not at the last tabstop, push it back on the stack
4327 if snippet.active_index + 1 < snippet.ranges.len() {
4328 self.snippet_stack.push(snippet);
4329 }
4330 return true;
4331 }
4332 }
4333
4334 false
4335 }
4336
4337 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4338 self.transact(cx, |this, cx| {
4339 this.select_all(&SelectAll, cx);
4340 this.insert("", cx);
4341 });
4342 }
4343
4344 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4345 self.transact(cx, |this, cx| {
4346 this.select_autoclose_pair(cx);
4347 let mut selections = this.selections.all::<Point>(cx);
4348 if !this.selections.line_mode {
4349 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4350 for selection in &mut selections {
4351 if selection.is_empty() {
4352 let old_head = selection.head();
4353 let mut new_head =
4354 movement::left(&display_map, old_head.to_display_point(&display_map))
4355 .to_point(&display_map);
4356 if let Some((buffer, line_buffer_range)) = display_map
4357 .buffer_snapshot
4358 .buffer_line_for_row(old_head.row)
4359 {
4360 let indent_size =
4361 buffer.indent_size_for_line(line_buffer_range.start.row);
4362 let indent_len = match indent_size.kind {
4363 IndentKind::Space => {
4364 buffer.settings_at(line_buffer_range.start, cx).tab_size
4365 }
4366 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4367 };
4368 if old_head.column <= indent_size.len && old_head.column > 0 {
4369 let indent_len = indent_len.get();
4370 new_head = cmp::min(
4371 new_head,
4372 Point::new(
4373 old_head.row,
4374 ((old_head.column - 1) / indent_len) * indent_len,
4375 ),
4376 );
4377 }
4378 }
4379
4380 selection.set_head(new_head, SelectionGoal::None);
4381 }
4382 }
4383 }
4384
4385 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4386 this.insert("", cx);
4387 this.refresh_copilot_suggestions(true, cx);
4388 });
4389 }
4390
4391 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4392 self.transact(cx, |this, cx| {
4393 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4394 let line_mode = s.line_mode;
4395 s.move_with(|map, selection| {
4396 if selection.is_empty() && !line_mode {
4397 let cursor = movement::right(map, selection.head());
4398 selection.end = cursor;
4399 selection.reversed = true;
4400 selection.goal = SelectionGoal::None;
4401 }
4402 })
4403 });
4404 this.insert("", cx);
4405 this.refresh_copilot_suggestions(true, cx);
4406 });
4407 }
4408
4409 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4410 if self.move_to_prev_snippet_tabstop(cx) {
4411 return;
4412 }
4413
4414 self.outdent(&Outdent, cx);
4415 }
4416
4417 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4418 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4419 return;
4420 }
4421
4422 let mut selections = self.selections.all_adjusted(cx);
4423 let buffer = self.buffer.read(cx);
4424 let snapshot = buffer.snapshot(cx);
4425 let rows_iter = selections.iter().map(|s| s.head().row);
4426 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4427
4428 let mut edits = Vec::new();
4429 let mut prev_edited_row = 0;
4430 let mut row_delta = 0;
4431 for selection in &mut selections {
4432 if selection.start.row != prev_edited_row {
4433 row_delta = 0;
4434 }
4435 prev_edited_row = selection.end.row;
4436
4437 // If the selection is non-empty, then increase the indentation of the selected lines.
4438 if !selection.is_empty() {
4439 row_delta =
4440 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4441 continue;
4442 }
4443
4444 // If the selection is empty and the cursor is in the leading whitespace before the
4445 // suggested indentation, then auto-indent the line.
4446 let cursor = selection.head();
4447 let current_indent = snapshot.indent_size_for_line(cursor.row);
4448 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4449 if cursor.column < suggested_indent.len
4450 && cursor.column <= current_indent.len
4451 && current_indent.len <= suggested_indent.len
4452 {
4453 selection.start = Point::new(cursor.row, suggested_indent.len);
4454 selection.end = selection.start;
4455 if row_delta == 0 {
4456 edits.extend(Buffer::edit_for_indent_size_adjustment(
4457 cursor.row,
4458 current_indent,
4459 suggested_indent,
4460 ));
4461 row_delta = suggested_indent.len - current_indent.len;
4462 }
4463 continue;
4464 }
4465 }
4466
4467 // Accept copilot suggestion if there is only one selection and the cursor is not
4468 // in the leading whitespace.
4469 if self.selections.count() == 1
4470 && cursor.column >= current_indent.len
4471 && self.has_active_copilot_suggestion(cx)
4472 {
4473 self.accept_copilot_suggestion(cx);
4474 return;
4475 }
4476
4477 // Otherwise, insert a hard or soft tab.
4478 let settings = buffer.settings_at(cursor, cx);
4479 let tab_size = if settings.hard_tabs {
4480 IndentSize::tab()
4481 } else {
4482 let tab_size = settings.tab_size.get();
4483 let char_column = snapshot
4484 .text_for_range(Point::new(cursor.row, 0)..cursor)
4485 .flat_map(str::chars)
4486 .count()
4487 + row_delta as usize;
4488 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4489 IndentSize::spaces(chars_to_next_tab_stop)
4490 };
4491 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4492 selection.end = selection.start;
4493 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4494 row_delta += tab_size.len;
4495 }
4496
4497 self.transact(cx, |this, cx| {
4498 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4499 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4500 this.refresh_copilot_suggestions(true, cx);
4501 });
4502 }
4503
4504 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4505 if self.read_only(cx) {
4506 return;
4507 }
4508 let mut selections = self.selections.all::<Point>(cx);
4509 let mut prev_edited_row = 0;
4510 let mut row_delta = 0;
4511 let mut edits = Vec::new();
4512 let buffer = self.buffer.read(cx);
4513 let snapshot = buffer.snapshot(cx);
4514 for selection in &mut selections {
4515 if selection.start.row != prev_edited_row {
4516 row_delta = 0;
4517 }
4518 prev_edited_row = selection.end.row;
4519
4520 row_delta =
4521 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4522 }
4523
4524 self.transact(cx, |this, cx| {
4525 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4526 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4527 });
4528 }
4529
4530 fn indent_selection(
4531 buffer: &MultiBuffer,
4532 snapshot: &MultiBufferSnapshot,
4533 selection: &mut Selection<Point>,
4534 edits: &mut Vec<(Range<Point>, String)>,
4535 delta_for_start_row: u32,
4536 cx: &AppContext,
4537 ) -> u32 {
4538 let settings = buffer.settings_at(selection.start, cx);
4539 let tab_size = settings.tab_size.get();
4540 let indent_kind = if settings.hard_tabs {
4541 IndentKind::Tab
4542 } else {
4543 IndentKind::Space
4544 };
4545 let mut start_row = selection.start.row;
4546 let mut end_row = selection.end.row + 1;
4547
4548 // If a selection ends at the beginning of a line, don't indent
4549 // that last line.
4550 if selection.end.column == 0 && selection.end.row > selection.start.row {
4551 end_row -= 1;
4552 }
4553
4554 // Avoid re-indenting a row that has already been indented by a
4555 // previous selection, but still update this selection's column
4556 // to reflect that indentation.
4557 if delta_for_start_row > 0 {
4558 start_row += 1;
4559 selection.start.column += delta_for_start_row;
4560 if selection.end.row == selection.start.row {
4561 selection.end.column += delta_for_start_row;
4562 }
4563 }
4564
4565 let mut delta_for_end_row = 0;
4566 for row in start_row..end_row {
4567 let current_indent = snapshot.indent_size_for_line(row);
4568 let indent_delta = match (current_indent.kind, indent_kind) {
4569 (IndentKind::Space, IndentKind::Space) => {
4570 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4571 IndentSize::spaces(columns_to_next_tab_stop)
4572 }
4573 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4574 (_, IndentKind::Tab) => IndentSize::tab(),
4575 };
4576
4577 let row_start = Point::new(row, 0);
4578 edits.push((
4579 row_start..row_start,
4580 indent_delta.chars().collect::<String>(),
4581 ));
4582
4583 // Update this selection's endpoints to reflect the indentation.
4584 if row == selection.start.row {
4585 selection.start.column += indent_delta.len;
4586 }
4587 if row == selection.end.row {
4588 selection.end.column += indent_delta.len;
4589 delta_for_end_row = indent_delta.len;
4590 }
4591 }
4592
4593 if selection.start.row == selection.end.row {
4594 delta_for_start_row + delta_for_end_row
4595 } else {
4596 delta_for_end_row
4597 }
4598 }
4599
4600 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4601 if self.read_only(cx) {
4602 return;
4603 }
4604 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4605 let selections = self.selections.all::<Point>(cx);
4606 let mut deletion_ranges = Vec::new();
4607 let mut last_outdent = None;
4608 {
4609 let buffer = self.buffer.read(cx);
4610 let snapshot = buffer.snapshot(cx);
4611 for selection in &selections {
4612 let settings = buffer.settings_at(selection.start, cx);
4613 let tab_size = settings.tab_size.get();
4614 let mut rows = selection.spanned_rows(false, &display_map);
4615
4616 // Avoid re-outdenting a row that has already been outdented by a
4617 // previous selection.
4618 if let Some(last_row) = last_outdent {
4619 if last_row == rows.start {
4620 rows.start += 1;
4621 }
4622 }
4623
4624 for row in rows {
4625 let indent_size = snapshot.indent_size_for_line(row);
4626 if indent_size.len > 0 {
4627 let deletion_len = match indent_size.kind {
4628 IndentKind::Space => {
4629 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4630 if columns_to_prev_tab_stop == 0 {
4631 tab_size
4632 } else {
4633 columns_to_prev_tab_stop
4634 }
4635 }
4636 IndentKind::Tab => 1,
4637 };
4638 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4639 last_outdent = Some(row);
4640 }
4641 }
4642 }
4643 }
4644
4645 self.transact(cx, |this, cx| {
4646 this.buffer.update(cx, |buffer, cx| {
4647 let empty_str: Arc<str> = "".into();
4648 buffer.edit(
4649 deletion_ranges
4650 .into_iter()
4651 .map(|range| (range, empty_str.clone())),
4652 None,
4653 cx,
4654 );
4655 });
4656 let selections = this.selections.all::<usize>(cx);
4657 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4658 });
4659 }
4660
4661 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4662 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4663 let selections = self.selections.all::<Point>(cx);
4664
4665 let mut new_cursors = Vec::new();
4666 let mut edit_ranges = Vec::new();
4667 let mut selections = selections.iter().peekable();
4668 while let Some(selection) = selections.next() {
4669 let mut rows = selection.spanned_rows(false, &display_map);
4670 let goal_display_column = selection.head().to_display_point(&display_map).column();
4671
4672 // Accumulate contiguous regions of rows that we want to delete.
4673 while let Some(next_selection) = selections.peek() {
4674 let next_rows = next_selection.spanned_rows(false, &display_map);
4675 if next_rows.start <= rows.end {
4676 rows.end = next_rows.end;
4677 selections.next().unwrap();
4678 } else {
4679 break;
4680 }
4681 }
4682
4683 let buffer = &display_map.buffer_snapshot;
4684 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4685 let edit_end;
4686 let cursor_buffer_row;
4687 if buffer.max_point().row >= rows.end {
4688 // If there's a line after the range, delete the \n from the end of the row range
4689 // and position the cursor on the next line.
4690 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4691 cursor_buffer_row = rows.end;
4692 } else {
4693 // If there isn't a line after the range, delete the \n from the line before the
4694 // start of the row range and position the cursor there.
4695 edit_start = edit_start.saturating_sub(1);
4696 edit_end = buffer.len();
4697 cursor_buffer_row = rows.start.saturating_sub(1);
4698 }
4699
4700 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4701 *cursor.column_mut() =
4702 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4703
4704 new_cursors.push((
4705 selection.id,
4706 buffer.anchor_after(cursor.to_point(&display_map)),
4707 ));
4708 edit_ranges.push(edit_start..edit_end);
4709 }
4710
4711 self.transact(cx, |this, cx| {
4712 let buffer = this.buffer.update(cx, |buffer, cx| {
4713 let empty_str: Arc<str> = "".into();
4714 buffer.edit(
4715 edit_ranges
4716 .into_iter()
4717 .map(|range| (range, empty_str.clone())),
4718 None,
4719 cx,
4720 );
4721 buffer.snapshot(cx)
4722 });
4723 let new_selections = new_cursors
4724 .into_iter()
4725 .map(|(id, cursor)| {
4726 let cursor = cursor.to_point(&buffer);
4727 Selection {
4728 id,
4729 start: cursor,
4730 end: cursor,
4731 reversed: false,
4732 goal: SelectionGoal::None,
4733 }
4734 })
4735 .collect();
4736
4737 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4738 s.select(new_selections);
4739 });
4740 });
4741 }
4742
4743 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4744 if self.read_only(cx) {
4745 return;
4746 }
4747 let mut row_ranges = Vec::<Range<u32>>::new();
4748 for selection in self.selections.all::<Point>(cx) {
4749 let start = selection.start.row;
4750 let end = if selection.start.row == selection.end.row {
4751 selection.start.row + 1
4752 } else {
4753 selection.end.row
4754 };
4755
4756 if let Some(last_row_range) = row_ranges.last_mut() {
4757 if start <= last_row_range.end {
4758 last_row_range.end = end;
4759 continue;
4760 }
4761 }
4762 row_ranges.push(start..end);
4763 }
4764
4765 let snapshot = self.buffer.read(cx).snapshot(cx);
4766 let mut cursor_positions = Vec::new();
4767 for row_range in &row_ranges {
4768 let anchor = snapshot.anchor_before(Point::new(
4769 row_range.end - 1,
4770 snapshot.line_len(row_range.end - 1),
4771 ));
4772 cursor_positions.push(anchor..anchor);
4773 }
4774
4775 self.transact(cx, |this, cx| {
4776 for row_range in row_ranges.into_iter().rev() {
4777 for row in row_range.rev() {
4778 let end_of_line = Point::new(row, snapshot.line_len(row));
4779 let indent = snapshot.indent_size_for_line(row + 1);
4780 let start_of_next_line = Point::new(row + 1, indent.len);
4781
4782 let replace = if snapshot.line_len(row + 1) > indent.len {
4783 " "
4784 } else {
4785 ""
4786 };
4787
4788 this.buffer.update(cx, |buffer, cx| {
4789 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4790 });
4791 }
4792 }
4793
4794 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4795 s.select_anchor_ranges(cursor_positions)
4796 });
4797 });
4798 }
4799
4800 pub fn sort_lines_case_sensitive(
4801 &mut self,
4802 _: &SortLinesCaseSensitive,
4803 cx: &mut ViewContext<Self>,
4804 ) {
4805 self.manipulate_lines(cx, |lines| lines.sort())
4806 }
4807
4808 pub fn sort_lines_case_insensitive(
4809 &mut self,
4810 _: &SortLinesCaseInsensitive,
4811 cx: &mut ViewContext<Self>,
4812 ) {
4813 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4814 }
4815
4816 pub fn unique_lines_case_insensitive(
4817 &mut self,
4818 _: &UniqueLinesCaseInsensitive,
4819 cx: &mut ViewContext<Self>,
4820 ) {
4821 self.manipulate_lines(cx, |lines| {
4822 let mut seen = HashSet::default();
4823 lines.retain(|line| seen.insert(line.to_lowercase()));
4824 })
4825 }
4826
4827 pub fn unique_lines_case_sensitive(
4828 &mut self,
4829 _: &UniqueLinesCaseSensitive,
4830 cx: &mut ViewContext<Self>,
4831 ) {
4832 self.manipulate_lines(cx, |lines| {
4833 let mut seen = HashSet::default();
4834 lines.retain(|line| seen.insert(*line));
4835 })
4836 }
4837
4838 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4839 self.manipulate_lines(cx, |lines| lines.reverse())
4840 }
4841
4842 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4843 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4844 }
4845
4846 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4847 where
4848 Fn: FnMut(&mut Vec<&str>),
4849 {
4850 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4851 let buffer = self.buffer.read(cx).snapshot(cx);
4852
4853 let mut edits = Vec::new();
4854
4855 let selections = self.selections.all::<Point>(cx);
4856 let mut selections = selections.iter().peekable();
4857 let mut contiguous_row_selections = Vec::new();
4858 let mut new_selections = Vec::new();
4859 let mut added_lines = 0;
4860 let mut removed_lines = 0;
4861
4862 while let Some(selection) = selections.next() {
4863 let (start_row, end_row) = consume_contiguous_rows(
4864 &mut contiguous_row_selections,
4865 selection,
4866 &display_map,
4867 &mut selections,
4868 );
4869
4870 let start_point = Point::new(start_row, 0);
4871 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4872 let text = buffer
4873 .text_for_range(start_point..end_point)
4874 .collect::<String>();
4875
4876 let mut lines = text.split('\n').collect_vec();
4877
4878 let lines_before = lines.len();
4879 callback(&mut lines);
4880 let lines_after = lines.len();
4881
4882 edits.push((start_point..end_point, lines.join("\n")));
4883
4884 // Selections must change based on added and removed line count
4885 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4886 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4887 new_selections.push(Selection {
4888 id: selection.id,
4889 start: start_row,
4890 end: end_row,
4891 goal: SelectionGoal::None,
4892 reversed: selection.reversed,
4893 });
4894
4895 if lines_after > lines_before {
4896 added_lines += lines_after - lines_before;
4897 } else if lines_before > lines_after {
4898 removed_lines += lines_before - lines_after;
4899 }
4900 }
4901
4902 self.transact(cx, |this, cx| {
4903 let buffer = this.buffer.update(cx, |buffer, cx| {
4904 buffer.edit(edits, None, cx);
4905 buffer.snapshot(cx)
4906 });
4907
4908 // Recalculate offsets on newly edited buffer
4909 let new_selections = new_selections
4910 .iter()
4911 .map(|s| {
4912 let start_point = Point::new(s.start, 0);
4913 let end_point = Point::new(s.end, buffer.line_len(s.end));
4914 Selection {
4915 id: s.id,
4916 start: buffer.point_to_offset(start_point),
4917 end: buffer.point_to_offset(end_point),
4918 goal: s.goal,
4919 reversed: s.reversed,
4920 }
4921 })
4922 .collect();
4923
4924 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4925 s.select(new_selections);
4926 });
4927
4928 this.request_autoscroll(Autoscroll::fit(), cx);
4929 });
4930 }
4931
4932 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4933 self.manipulate_text(cx, |text| text.to_uppercase())
4934 }
4935
4936 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4937 self.manipulate_text(cx, |text| text.to_lowercase())
4938 }
4939
4940 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4941 self.manipulate_text(cx, |text| {
4942 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4943 // https://github.com/rutrum/convert-case/issues/16
4944 text.split('\n')
4945 .map(|line| line.to_case(Case::Title))
4946 .join("\n")
4947 })
4948 }
4949
4950 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4951 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4952 }
4953
4954 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4955 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4956 }
4957
4958 pub fn convert_to_upper_camel_case(
4959 &mut self,
4960 _: &ConvertToUpperCamelCase,
4961 cx: &mut ViewContext<Self>,
4962 ) {
4963 self.manipulate_text(cx, |text| {
4964 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4965 // https://github.com/rutrum/convert-case/issues/16
4966 text.split('\n')
4967 .map(|line| line.to_case(Case::UpperCamel))
4968 .join("\n")
4969 })
4970 }
4971
4972 pub fn convert_to_lower_camel_case(
4973 &mut self,
4974 _: &ConvertToLowerCamelCase,
4975 cx: &mut ViewContext<Self>,
4976 ) {
4977 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4978 }
4979
4980 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4981 where
4982 Fn: FnMut(&str) -> String,
4983 {
4984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4985 let buffer = self.buffer.read(cx).snapshot(cx);
4986
4987 let mut new_selections = Vec::new();
4988 let mut edits = Vec::new();
4989 let mut selection_adjustment = 0i32;
4990
4991 for selection in self.selections.all::<usize>(cx) {
4992 let selection_is_empty = selection.is_empty();
4993
4994 let (start, end) = if selection_is_empty {
4995 let word_range = movement::surrounding_word(
4996 &display_map,
4997 selection.start.to_display_point(&display_map),
4998 );
4999 let start = word_range.start.to_offset(&display_map, Bias::Left);
5000 let end = word_range.end.to_offset(&display_map, Bias::Left);
5001 (start, end)
5002 } else {
5003 (selection.start, selection.end)
5004 };
5005
5006 let text = buffer.text_for_range(start..end).collect::<String>();
5007 let old_length = text.len() as i32;
5008 let text = callback(&text);
5009
5010 new_selections.push(Selection {
5011 start: (start as i32 - selection_adjustment) as usize,
5012 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5013 goal: SelectionGoal::None,
5014 ..selection
5015 });
5016
5017 selection_adjustment += old_length - text.len() as i32;
5018
5019 edits.push((start..end, text));
5020 }
5021
5022 self.transact(cx, |this, cx| {
5023 this.buffer.update(cx, |buffer, cx| {
5024 buffer.edit(edits, None, cx);
5025 });
5026
5027 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5028 s.select(new_selections);
5029 });
5030
5031 this.request_autoscroll(Autoscroll::fit(), cx);
5032 });
5033 }
5034
5035 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
5036 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5037 let buffer = &display_map.buffer_snapshot;
5038 let selections = self.selections.all::<Point>(cx);
5039
5040 let mut edits = Vec::new();
5041 let mut selections_iter = selections.iter().peekable();
5042 while let Some(selection) = selections_iter.next() {
5043 // Avoid duplicating the same lines twice.
5044 let mut rows = selection.spanned_rows(false, &display_map);
5045
5046 while let Some(next_selection) = selections_iter.peek() {
5047 let next_rows = next_selection.spanned_rows(false, &display_map);
5048 if next_rows.start < rows.end {
5049 rows.end = next_rows.end;
5050 selections_iter.next().unwrap();
5051 } else {
5052 break;
5053 }
5054 }
5055
5056 // Copy the text from the selected row region and splice it at the start of the region.
5057 let start = Point::new(rows.start, 0);
5058 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5059 let text = buffer
5060 .text_for_range(start..end)
5061 .chain(Some("\n"))
5062 .collect::<String>();
5063 edits.push((start..start, text));
5064 }
5065
5066 self.transact(cx, |this, cx| {
5067 this.buffer.update(cx, |buffer, cx| {
5068 buffer.edit(edits, None, cx);
5069 });
5070
5071 this.request_autoscroll(Autoscroll::fit(), cx);
5072 });
5073 }
5074
5075 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5076 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5077 let buffer = self.buffer.read(cx).snapshot(cx);
5078
5079 let mut edits = Vec::new();
5080 let mut unfold_ranges = Vec::new();
5081 let mut refold_ranges = Vec::new();
5082
5083 let selections = self.selections.all::<Point>(cx);
5084 let mut selections = selections.iter().peekable();
5085 let mut contiguous_row_selections = Vec::new();
5086 let mut new_selections = Vec::new();
5087
5088 while let Some(selection) = selections.next() {
5089 // Find all the selections that span a contiguous row range
5090 let (start_row, end_row) = consume_contiguous_rows(
5091 &mut contiguous_row_selections,
5092 selection,
5093 &display_map,
5094 &mut selections,
5095 );
5096
5097 // Move the text spanned by the row range to be before the line preceding the row range
5098 if start_row > 0 {
5099 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5100 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5101 let insertion_point = display_map
5102 .prev_line_boundary(Point::new(start_row - 1, 0))
5103 .0;
5104
5105 // Don't move lines across excerpts
5106 if buffer
5107 .excerpt_boundaries_in_range((
5108 Bound::Excluded(insertion_point),
5109 Bound::Included(range_to_move.end),
5110 ))
5111 .next()
5112 .is_none()
5113 {
5114 let text = buffer
5115 .text_for_range(range_to_move.clone())
5116 .flat_map(|s| s.chars())
5117 .skip(1)
5118 .chain(['\n'])
5119 .collect::<String>();
5120
5121 edits.push((
5122 buffer.anchor_after(range_to_move.start)
5123 ..buffer.anchor_before(range_to_move.end),
5124 String::new(),
5125 ));
5126 let insertion_anchor = buffer.anchor_after(insertion_point);
5127 edits.push((insertion_anchor..insertion_anchor, text));
5128
5129 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5130
5131 // Move selections up
5132 new_selections.extend(contiguous_row_selections.drain(..).map(
5133 |mut selection| {
5134 selection.start.row -= row_delta;
5135 selection.end.row -= row_delta;
5136 selection
5137 },
5138 ));
5139
5140 // Move folds up
5141 unfold_ranges.push(range_to_move.clone());
5142 for fold in display_map.folds_in_range(
5143 buffer.anchor_before(range_to_move.start)
5144 ..buffer.anchor_after(range_to_move.end),
5145 ) {
5146 let mut start = fold.range.start.to_point(&buffer);
5147 let mut end = fold.range.end.to_point(&buffer);
5148 start.row -= row_delta;
5149 end.row -= row_delta;
5150 refold_ranges.push(start..end);
5151 }
5152 }
5153 }
5154
5155 // If we didn't move line(s), preserve the existing selections
5156 new_selections.append(&mut contiguous_row_selections);
5157 }
5158
5159 self.transact(cx, |this, cx| {
5160 this.unfold_ranges(unfold_ranges, true, true, cx);
5161 this.buffer.update(cx, |buffer, cx| {
5162 for (range, text) in edits {
5163 buffer.edit([(range, text)], None, cx);
5164 }
5165 });
5166 this.fold_ranges(refold_ranges, true, cx);
5167 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5168 s.select(new_selections);
5169 })
5170 });
5171 }
5172
5173 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5174 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5175 let buffer = self.buffer.read(cx).snapshot(cx);
5176
5177 let mut edits = Vec::new();
5178 let mut unfold_ranges = Vec::new();
5179 let mut refold_ranges = Vec::new();
5180
5181 let selections = self.selections.all::<Point>(cx);
5182 let mut selections = selections.iter().peekable();
5183 let mut contiguous_row_selections = Vec::new();
5184 let mut new_selections = Vec::new();
5185
5186 while let Some(selection) = selections.next() {
5187 // Find all the selections that span a contiguous row range
5188 let (start_row, end_row) = consume_contiguous_rows(
5189 &mut contiguous_row_selections,
5190 selection,
5191 &display_map,
5192 &mut selections,
5193 );
5194
5195 // Move the text spanned by the row range to be after the last line of the row range
5196 if end_row <= buffer.max_point().row {
5197 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5198 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5199
5200 // Don't move lines across excerpt boundaries
5201 if buffer
5202 .excerpt_boundaries_in_range((
5203 Bound::Excluded(range_to_move.start),
5204 Bound::Included(insertion_point),
5205 ))
5206 .next()
5207 .is_none()
5208 {
5209 let mut text = String::from("\n");
5210 text.extend(buffer.text_for_range(range_to_move.clone()));
5211 text.pop(); // Drop trailing newline
5212 edits.push((
5213 buffer.anchor_after(range_to_move.start)
5214 ..buffer.anchor_before(range_to_move.end),
5215 String::new(),
5216 ));
5217 let insertion_anchor = buffer.anchor_after(insertion_point);
5218 edits.push((insertion_anchor..insertion_anchor, text));
5219
5220 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5221
5222 // Move selections down
5223 new_selections.extend(contiguous_row_selections.drain(..).map(
5224 |mut selection| {
5225 selection.start.row += row_delta;
5226 selection.end.row += row_delta;
5227 selection
5228 },
5229 ));
5230
5231 // Move folds down
5232 unfold_ranges.push(range_to_move.clone());
5233 for fold in display_map.folds_in_range(
5234 buffer.anchor_before(range_to_move.start)
5235 ..buffer.anchor_after(range_to_move.end),
5236 ) {
5237 let mut start = fold.range.start.to_point(&buffer);
5238 let mut end = fold.range.end.to_point(&buffer);
5239 start.row += row_delta;
5240 end.row += row_delta;
5241 refold_ranges.push(start..end);
5242 }
5243 }
5244 }
5245
5246 // If we didn't move line(s), preserve the existing selections
5247 new_selections.append(&mut contiguous_row_selections);
5248 }
5249
5250 self.transact(cx, |this, cx| {
5251 this.unfold_ranges(unfold_ranges, true, true, cx);
5252 this.buffer.update(cx, |buffer, cx| {
5253 for (range, text) in edits {
5254 buffer.edit([(range, text)], None, cx);
5255 }
5256 });
5257 this.fold_ranges(refold_ranges, true, cx);
5258 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5259 });
5260 }
5261
5262 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5263 let text_layout_details = &self.text_layout_details(cx);
5264 self.transact(cx, |this, cx| {
5265 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5266 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5267 let line_mode = s.line_mode;
5268 s.move_with(|display_map, selection| {
5269 if !selection.is_empty() || line_mode {
5270 return;
5271 }
5272
5273 let mut head = selection.head();
5274 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5275 if head.column() == display_map.line_len(head.row()) {
5276 transpose_offset = display_map
5277 .buffer_snapshot
5278 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5279 }
5280
5281 if transpose_offset == 0 {
5282 return;
5283 }
5284
5285 *head.column_mut() += 1;
5286 head = display_map.clip_point(head, Bias::Right);
5287 let goal = SelectionGoal::HorizontalPosition(
5288 display_map
5289 .x_for_display_point(head, &text_layout_details)
5290 .into(),
5291 );
5292 selection.collapse_to(head, goal);
5293
5294 let transpose_start = display_map
5295 .buffer_snapshot
5296 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5297 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5298 let transpose_end = display_map
5299 .buffer_snapshot
5300 .clip_offset(transpose_offset + 1, Bias::Right);
5301 if let Some(ch) =
5302 display_map.buffer_snapshot.chars_at(transpose_start).next()
5303 {
5304 edits.push((transpose_start..transpose_offset, String::new()));
5305 edits.push((transpose_end..transpose_end, ch.to_string()));
5306 }
5307 }
5308 });
5309 edits
5310 });
5311 this.buffer
5312 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5313 let selections = this.selections.all::<usize>(cx);
5314 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5315 s.select(selections);
5316 });
5317 });
5318 }
5319
5320 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5321 let mut text = String::new();
5322 let buffer = self.buffer.read(cx).snapshot(cx);
5323 let mut selections = self.selections.all::<Point>(cx);
5324 let mut clipboard_selections = Vec::with_capacity(selections.len());
5325 {
5326 let max_point = buffer.max_point();
5327 let mut is_first = true;
5328 for selection in &mut selections {
5329 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5330 if is_entire_line {
5331 selection.start = Point::new(selection.start.row, 0);
5332 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5333 selection.goal = SelectionGoal::None;
5334 }
5335 if is_first {
5336 is_first = false;
5337 } else {
5338 text += "\n";
5339 }
5340 let mut len = 0;
5341 for chunk in buffer.text_for_range(selection.start..selection.end) {
5342 text.push_str(chunk);
5343 len += chunk.len();
5344 }
5345 clipboard_selections.push(ClipboardSelection {
5346 len,
5347 is_entire_line,
5348 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5349 });
5350 }
5351 }
5352
5353 self.transact(cx, |this, cx| {
5354 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5355 s.select(selections);
5356 });
5357 this.insert("", cx);
5358 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5359 });
5360 }
5361
5362 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5363 let selections = self.selections.all::<Point>(cx);
5364 let buffer = self.buffer.read(cx).read(cx);
5365 let mut text = String::new();
5366
5367 let mut clipboard_selections = Vec::with_capacity(selections.len());
5368 {
5369 let max_point = buffer.max_point();
5370 let mut is_first = true;
5371 for selection in selections.iter() {
5372 let mut start = selection.start;
5373 let mut end = selection.end;
5374 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5375 if is_entire_line {
5376 start = Point::new(start.row, 0);
5377 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5378 }
5379 if is_first {
5380 is_first = false;
5381 } else {
5382 text += "\n";
5383 }
5384 let mut len = 0;
5385 for chunk in buffer.text_for_range(start..end) {
5386 text.push_str(chunk);
5387 len += chunk.len();
5388 }
5389 clipboard_selections.push(ClipboardSelection {
5390 len,
5391 is_entire_line,
5392 first_line_indent: buffer.indent_size_for_line(start.row).len,
5393 });
5394 }
5395 }
5396
5397 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5398 }
5399
5400 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5401 if self.read_only(cx) {
5402 return;
5403 }
5404
5405 self.transact(cx, |this, cx| {
5406 if let Some(item) = cx.read_from_clipboard() {
5407 let clipboard_text = Cow::Borrowed(item.text());
5408 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5409 let old_selections = this.selections.all::<usize>(cx);
5410 let all_selections_were_entire_line =
5411 clipboard_selections.iter().all(|s| s.is_entire_line);
5412 let first_selection_indent_column =
5413 clipboard_selections.first().map(|s| s.first_line_indent);
5414 if clipboard_selections.len() != old_selections.len() {
5415 clipboard_selections.drain(..);
5416 }
5417
5418 this.buffer.update(cx, |buffer, cx| {
5419 let snapshot = buffer.read(cx);
5420 let mut start_offset = 0;
5421 let mut edits = Vec::new();
5422 let mut original_indent_columns = Vec::new();
5423 let line_mode = this.selections.line_mode;
5424 for (ix, selection) in old_selections.iter().enumerate() {
5425 let to_insert;
5426 let entire_line;
5427 let original_indent_column;
5428 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5429 let end_offset = start_offset + clipboard_selection.len;
5430 to_insert = &clipboard_text[start_offset..end_offset];
5431 entire_line = clipboard_selection.is_entire_line;
5432 start_offset = end_offset + 1;
5433 original_indent_column =
5434 Some(clipboard_selection.first_line_indent);
5435 } else {
5436 to_insert = clipboard_text.as_str();
5437 entire_line = all_selections_were_entire_line;
5438 original_indent_column = first_selection_indent_column
5439 }
5440
5441 // If the corresponding selection was empty when this slice of the
5442 // clipboard text was written, then the entire line containing the
5443 // selection was copied. If this selection is also currently empty,
5444 // then paste the line before the current line of the buffer.
5445 let range = if selection.is_empty() && !line_mode && entire_line {
5446 let column = selection.start.to_point(&snapshot).column as usize;
5447 let line_start = selection.start - column;
5448 line_start..line_start
5449 } else {
5450 selection.range()
5451 };
5452
5453 edits.push((range, to_insert));
5454 original_indent_columns.extend(original_indent_column);
5455 }
5456 drop(snapshot);
5457
5458 buffer.edit(
5459 edits,
5460 Some(AutoindentMode::Block {
5461 original_indent_columns,
5462 }),
5463 cx,
5464 );
5465 });
5466
5467 let selections = this.selections.all::<usize>(cx);
5468 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5469 } else {
5470 this.insert(&clipboard_text, cx);
5471 }
5472 }
5473 });
5474 }
5475
5476 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5477 if self.read_only(cx) {
5478 return;
5479 }
5480
5481 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5482 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5483 self.change_selections(None, cx, |s| {
5484 s.select_anchors(selections.to_vec());
5485 });
5486 }
5487 self.request_autoscroll(Autoscroll::fit(), cx);
5488 self.unmark_text(cx);
5489 self.refresh_copilot_suggestions(true, cx);
5490 cx.emit(EditorEvent::Edited);
5491 }
5492 }
5493
5494 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5495 if self.read_only(cx) {
5496 return;
5497 }
5498
5499 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5500 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5501 {
5502 self.change_selections(None, cx, |s| {
5503 s.select_anchors(selections.to_vec());
5504 });
5505 }
5506 self.request_autoscroll(Autoscroll::fit(), cx);
5507 self.unmark_text(cx);
5508 self.refresh_copilot_suggestions(true, cx);
5509 cx.emit(EditorEvent::Edited);
5510 }
5511 }
5512
5513 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5514 self.buffer
5515 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5516 }
5517
5518 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5519 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5520 let line_mode = s.line_mode;
5521 s.move_with(|map, selection| {
5522 let cursor = if selection.is_empty() && !line_mode {
5523 movement::left(map, selection.start)
5524 } else {
5525 selection.start
5526 };
5527 selection.collapse_to(cursor, SelectionGoal::None);
5528 });
5529 })
5530 }
5531
5532 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5533 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5534 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5535 })
5536 }
5537
5538 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5539 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5540 let line_mode = s.line_mode;
5541 s.move_with(|map, selection| {
5542 let cursor = if selection.is_empty() && !line_mode {
5543 movement::right(map, selection.end)
5544 } else {
5545 selection.end
5546 };
5547 selection.collapse_to(cursor, SelectionGoal::None)
5548 });
5549 })
5550 }
5551
5552 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5553 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5554 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5555 })
5556 }
5557
5558 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5559 if self.take_rename(true, cx).is_some() {
5560 return;
5561 }
5562
5563 if matches!(self.mode, EditorMode::SingleLine) {
5564 cx.propagate();
5565 return;
5566 }
5567
5568 let text_layout_details = &self.text_layout_details(cx);
5569
5570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5571 let line_mode = s.line_mode;
5572 s.move_with(|map, selection| {
5573 if !selection.is_empty() && !line_mode {
5574 selection.goal = SelectionGoal::None;
5575 }
5576 let (cursor, goal) = movement::up(
5577 map,
5578 selection.start,
5579 selection.goal,
5580 false,
5581 &text_layout_details,
5582 );
5583 selection.collapse_to(cursor, goal);
5584 });
5585 })
5586 }
5587
5588 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5589 if self.take_rename(true, cx).is_some() {
5590 return;
5591 }
5592
5593 if matches!(self.mode, EditorMode::SingleLine) {
5594 cx.propagate();
5595 return;
5596 }
5597
5598 let text_layout_details = &self.text_layout_details(cx);
5599
5600 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5601 let line_mode = s.line_mode;
5602 s.move_with(|map, selection| {
5603 if !selection.is_empty() && !line_mode {
5604 selection.goal = SelectionGoal::None;
5605 }
5606 let (cursor, goal) = movement::up_by_rows(
5607 map,
5608 selection.start,
5609 action.lines,
5610 selection.goal,
5611 false,
5612 &text_layout_details,
5613 );
5614 selection.collapse_to(cursor, goal);
5615 });
5616 })
5617 }
5618
5619 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5620 if self.take_rename(true, cx).is_some() {
5621 return;
5622 }
5623
5624 if matches!(self.mode, EditorMode::SingleLine) {
5625 cx.propagate();
5626 return;
5627 }
5628
5629 let text_layout_details = &self.text_layout_details(cx);
5630
5631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5632 let line_mode = s.line_mode;
5633 s.move_with(|map, selection| {
5634 if !selection.is_empty() && !line_mode {
5635 selection.goal = SelectionGoal::None;
5636 }
5637 let (cursor, goal) = movement::down_by_rows(
5638 map,
5639 selection.start,
5640 action.lines,
5641 selection.goal,
5642 false,
5643 &text_layout_details,
5644 );
5645 selection.collapse_to(cursor, goal);
5646 });
5647 })
5648 }
5649
5650 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5651 let text_layout_details = &self.text_layout_details(cx);
5652 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5653 s.move_heads_with(|map, head, goal| {
5654 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5655 })
5656 })
5657 }
5658
5659 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5660 let text_layout_details = &self.text_layout_details(cx);
5661 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5662 s.move_heads_with(|map, head, goal| {
5663 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5664 })
5665 })
5666 }
5667
5668 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5669 if self.take_rename(true, cx).is_some() {
5670 return;
5671 }
5672
5673 if matches!(self.mode, EditorMode::SingleLine) {
5674 cx.propagate();
5675 return;
5676 }
5677
5678 let row_count = if let Some(row_count) = self.visible_line_count() {
5679 row_count as u32 - 1
5680 } else {
5681 return;
5682 };
5683
5684 let autoscroll = if action.center_cursor {
5685 Autoscroll::center()
5686 } else {
5687 Autoscroll::fit()
5688 };
5689
5690 let text_layout_details = &self.text_layout_details(cx);
5691
5692 self.change_selections(Some(autoscroll), cx, |s| {
5693 let line_mode = s.line_mode;
5694 s.move_with(|map, selection| {
5695 if !selection.is_empty() && !line_mode {
5696 selection.goal = SelectionGoal::None;
5697 }
5698 let (cursor, goal) = movement::up_by_rows(
5699 map,
5700 selection.end,
5701 row_count,
5702 selection.goal,
5703 false,
5704 &text_layout_details,
5705 );
5706 selection.collapse_to(cursor, goal);
5707 });
5708 });
5709 }
5710
5711 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5712 let text_layout_details = &self.text_layout_details(cx);
5713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 s.move_heads_with(|map, head, goal| {
5715 movement::up(map, head, goal, false, &text_layout_details)
5716 })
5717 })
5718 }
5719
5720 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5721 self.take_rename(true, cx);
5722
5723 if self.mode == EditorMode::SingleLine {
5724 cx.propagate();
5725 return;
5726 }
5727
5728 let text_layout_details = &self.text_layout_details(cx);
5729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5730 let line_mode = s.line_mode;
5731 s.move_with(|map, selection| {
5732 if !selection.is_empty() && !line_mode {
5733 selection.goal = SelectionGoal::None;
5734 }
5735 let (cursor, goal) = movement::down(
5736 map,
5737 selection.end,
5738 selection.goal,
5739 false,
5740 &text_layout_details,
5741 );
5742 selection.collapse_to(cursor, goal);
5743 });
5744 });
5745 }
5746
5747 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5748 if self.take_rename(true, cx).is_some() {
5749 return;
5750 }
5751
5752 if self
5753 .context_menu
5754 .write()
5755 .as_mut()
5756 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5757 .unwrap_or(false)
5758 {
5759 return;
5760 }
5761
5762 if matches!(self.mode, EditorMode::SingleLine) {
5763 cx.propagate();
5764 return;
5765 }
5766
5767 let row_count = if let Some(row_count) = self.visible_line_count() {
5768 row_count as u32 - 1
5769 } else {
5770 return;
5771 };
5772
5773 let autoscroll = if action.center_cursor {
5774 Autoscroll::center()
5775 } else {
5776 Autoscroll::fit()
5777 };
5778
5779 let text_layout_details = &self.text_layout_details(cx);
5780 self.change_selections(Some(autoscroll), cx, |s| {
5781 let line_mode = s.line_mode;
5782 s.move_with(|map, selection| {
5783 if !selection.is_empty() && !line_mode {
5784 selection.goal = SelectionGoal::None;
5785 }
5786 let (cursor, goal) = movement::down_by_rows(
5787 map,
5788 selection.end,
5789 row_count,
5790 selection.goal,
5791 false,
5792 &text_layout_details,
5793 );
5794 selection.collapse_to(cursor, goal);
5795 });
5796 });
5797 }
5798
5799 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5800 let text_layout_details = &self.text_layout_details(cx);
5801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5802 s.move_heads_with(|map, head, goal| {
5803 movement::down(map, head, goal, false, &text_layout_details)
5804 })
5805 });
5806 }
5807
5808 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5809 if let Some(context_menu) = self.context_menu.write().as_mut() {
5810 context_menu.select_first(self.project.as_ref(), cx);
5811 }
5812 }
5813
5814 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5815 if let Some(context_menu) = self.context_menu.write().as_mut() {
5816 context_menu.select_prev(self.project.as_ref(), cx);
5817 }
5818 }
5819
5820 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5821 if let Some(context_menu) = self.context_menu.write().as_mut() {
5822 context_menu.select_next(self.project.as_ref(), cx);
5823 }
5824 }
5825
5826 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5827 if let Some(context_menu) = self.context_menu.write().as_mut() {
5828 context_menu.select_last(self.project.as_ref(), cx);
5829 }
5830 }
5831
5832 pub fn move_to_previous_word_start(
5833 &mut self,
5834 _: &MoveToPreviousWordStart,
5835 cx: &mut ViewContext<Self>,
5836 ) {
5837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5838 s.move_cursors_with(|map, head, _| {
5839 (
5840 movement::previous_word_start(map, head),
5841 SelectionGoal::None,
5842 )
5843 });
5844 })
5845 }
5846
5847 pub fn move_to_previous_subword_start(
5848 &mut self,
5849 _: &MoveToPreviousSubwordStart,
5850 cx: &mut ViewContext<Self>,
5851 ) {
5852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5853 s.move_cursors_with(|map, head, _| {
5854 (
5855 movement::previous_subword_start(map, head),
5856 SelectionGoal::None,
5857 )
5858 });
5859 })
5860 }
5861
5862 pub fn select_to_previous_word_start(
5863 &mut self,
5864 _: &SelectToPreviousWordStart,
5865 cx: &mut ViewContext<Self>,
5866 ) {
5867 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5868 s.move_heads_with(|map, head, _| {
5869 (
5870 movement::previous_word_start(map, head),
5871 SelectionGoal::None,
5872 )
5873 });
5874 })
5875 }
5876
5877 pub fn select_to_previous_subword_start(
5878 &mut self,
5879 _: &SelectToPreviousSubwordStart,
5880 cx: &mut ViewContext<Self>,
5881 ) {
5882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5883 s.move_heads_with(|map, head, _| {
5884 (
5885 movement::previous_subword_start(map, head),
5886 SelectionGoal::None,
5887 )
5888 });
5889 })
5890 }
5891
5892 pub fn delete_to_previous_word_start(
5893 &mut self,
5894 _: &DeleteToPreviousWordStart,
5895 cx: &mut ViewContext<Self>,
5896 ) {
5897 self.transact(cx, |this, cx| {
5898 this.select_autoclose_pair(cx);
5899 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5900 let line_mode = s.line_mode;
5901 s.move_with(|map, selection| {
5902 if selection.is_empty() && !line_mode {
5903 let cursor = movement::previous_word_start(map, selection.head());
5904 selection.set_head(cursor, SelectionGoal::None);
5905 }
5906 });
5907 });
5908 this.insert("", cx);
5909 });
5910 }
5911
5912 pub fn delete_to_previous_subword_start(
5913 &mut self,
5914 _: &DeleteToPreviousSubwordStart,
5915 cx: &mut ViewContext<Self>,
5916 ) {
5917 self.transact(cx, |this, cx| {
5918 this.select_autoclose_pair(cx);
5919 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5920 let line_mode = s.line_mode;
5921 s.move_with(|map, selection| {
5922 if selection.is_empty() && !line_mode {
5923 let cursor = movement::previous_subword_start(map, selection.head());
5924 selection.set_head(cursor, SelectionGoal::None);
5925 }
5926 });
5927 });
5928 this.insert("", cx);
5929 });
5930 }
5931
5932 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5934 s.move_cursors_with(|map, head, _| {
5935 (movement::next_word_end(map, head), SelectionGoal::None)
5936 });
5937 })
5938 }
5939
5940 pub fn move_to_next_subword_end(
5941 &mut self,
5942 _: &MoveToNextSubwordEnd,
5943 cx: &mut ViewContext<Self>,
5944 ) {
5945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5946 s.move_cursors_with(|map, head, _| {
5947 (movement::next_subword_end(map, head), SelectionGoal::None)
5948 });
5949 })
5950 }
5951
5952 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5954 s.move_heads_with(|map, head, _| {
5955 (movement::next_word_end(map, head), SelectionGoal::None)
5956 });
5957 })
5958 }
5959
5960 pub fn select_to_next_subword_end(
5961 &mut self,
5962 _: &SelectToNextSubwordEnd,
5963 cx: &mut ViewContext<Self>,
5964 ) {
5965 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5966 s.move_heads_with(|map, head, _| {
5967 (movement::next_subword_end(map, head), SelectionGoal::None)
5968 });
5969 })
5970 }
5971
5972 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5973 self.transact(cx, |this, cx| {
5974 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5975 let line_mode = s.line_mode;
5976 s.move_with(|map, selection| {
5977 if selection.is_empty() && !line_mode {
5978 let cursor = movement::next_word_end(map, selection.head());
5979 selection.set_head(cursor, SelectionGoal::None);
5980 }
5981 });
5982 });
5983 this.insert("", cx);
5984 });
5985 }
5986
5987 pub fn delete_to_next_subword_end(
5988 &mut self,
5989 _: &DeleteToNextSubwordEnd,
5990 cx: &mut ViewContext<Self>,
5991 ) {
5992 self.transact(cx, |this, cx| {
5993 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5994 s.move_with(|map, selection| {
5995 if selection.is_empty() {
5996 let cursor = movement::next_subword_end(map, selection.head());
5997 selection.set_head(cursor, SelectionGoal::None);
5998 }
5999 });
6000 });
6001 this.insert("", cx);
6002 });
6003 }
6004
6005 pub fn move_to_beginning_of_line(
6006 &mut self,
6007 _: &MoveToBeginningOfLine,
6008 cx: &mut ViewContext<Self>,
6009 ) {
6010 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6011 s.move_cursors_with(|map, head, _| {
6012 (
6013 movement::indented_line_beginning(map, head, true),
6014 SelectionGoal::None,
6015 )
6016 });
6017 })
6018 }
6019
6020 pub fn select_to_beginning_of_line(
6021 &mut self,
6022 action: &SelectToBeginningOfLine,
6023 cx: &mut ViewContext<Self>,
6024 ) {
6025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6026 s.move_heads_with(|map, head, _| {
6027 (
6028 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6029 SelectionGoal::None,
6030 )
6031 });
6032 });
6033 }
6034
6035 pub fn delete_to_beginning_of_line(
6036 &mut self,
6037 _: &DeleteToBeginningOfLine,
6038 cx: &mut ViewContext<Self>,
6039 ) {
6040 self.transact(cx, |this, cx| {
6041 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6042 s.move_with(|_, selection| {
6043 selection.reversed = true;
6044 });
6045 });
6046
6047 this.select_to_beginning_of_line(
6048 &SelectToBeginningOfLine {
6049 stop_at_soft_wraps: false,
6050 },
6051 cx,
6052 );
6053 this.backspace(&Backspace, cx);
6054 });
6055 }
6056
6057 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6059 s.move_cursors_with(|map, head, _| {
6060 (movement::line_end(map, head, true), SelectionGoal::None)
6061 });
6062 })
6063 }
6064
6065 pub fn select_to_end_of_line(
6066 &mut self,
6067 action: &SelectToEndOfLine,
6068 cx: &mut ViewContext<Self>,
6069 ) {
6070 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6071 s.move_heads_with(|map, head, _| {
6072 (
6073 movement::line_end(map, head, action.stop_at_soft_wraps),
6074 SelectionGoal::None,
6075 )
6076 });
6077 })
6078 }
6079
6080 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6081 self.transact(cx, |this, cx| {
6082 this.select_to_end_of_line(
6083 &SelectToEndOfLine {
6084 stop_at_soft_wraps: false,
6085 },
6086 cx,
6087 );
6088 this.delete(&Delete, cx);
6089 });
6090 }
6091
6092 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6093 self.transact(cx, |this, cx| {
6094 this.select_to_end_of_line(
6095 &SelectToEndOfLine {
6096 stop_at_soft_wraps: false,
6097 },
6098 cx,
6099 );
6100 this.cut(&Cut, cx);
6101 });
6102 }
6103
6104 pub fn move_to_start_of_paragraph(
6105 &mut self,
6106 _: &MoveToStartOfParagraph,
6107 cx: &mut ViewContext<Self>,
6108 ) {
6109 if matches!(self.mode, EditorMode::SingleLine) {
6110 cx.propagate();
6111 return;
6112 }
6113
6114 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 s.move_with(|map, selection| {
6116 selection.collapse_to(
6117 movement::start_of_paragraph(map, selection.head(), 1),
6118 SelectionGoal::None,
6119 )
6120 });
6121 })
6122 }
6123
6124 pub fn move_to_end_of_paragraph(
6125 &mut self,
6126 _: &MoveToEndOfParagraph,
6127 cx: &mut ViewContext<Self>,
6128 ) {
6129 if matches!(self.mode, EditorMode::SingleLine) {
6130 cx.propagate();
6131 return;
6132 }
6133
6134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6135 s.move_with(|map, selection| {
6136 selection.collapse_to(
6137 movement::end_of_paragraph(map, selection.head(), 1),
6138 SelectionGoal::None,
6139 )
6140 });
6141 })
6142 }
6143
6144 pub fn select_to_start_of_paragraph(
6145 &mut self,
6146 _: &SelectToStartOfParagraph,
6147 cx: &mut ViewContext<Self>,
6148 ) {
6149 if matches!(self.mode, EditorMode::SingleLine) {
6150 cx.propagate();
6151 return;
6152 }
6153
6154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.move_heads_with(|map, head, _| {
6156 (
6157 movement::start_of_paragraph(map, head, 1),
6158 SelectionGoal::None,
6159 )
6160 });
6161 })
6162 }
6163
6164 pub fn select_to_end_of_paragraph(
6165 &mut self,
6166 _: &SelectToEndOfParagraph,
6167 cx: &mut ViewContext<Self>,
6168 ) {
6169 if matches!(self.mode, EditorMode::SingleLine) {
6170 cx.propagate();
6171 return;
6172 }
6173
6174 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6175 s.move_heads_with(|map, head, _| {
6176 (
6177 movement::end_of_paragraph(map, head, 1),
6178 SelectionGoal::None,
6179 )
6180 });
6181 })
6182 }
6183
6184 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6185 if matches!(self.mode, EditorMode::SingleLine) {
6186 cx.propagate();
6187 return;
6188 }
6189
6190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6191 s.select_ranges(vec![0..0]);
6192 });
6193 }
6194
6195 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6196 let mut selection = self.selections.last::<Point>(cx);
6197 selection.set_head(Point::zero(), SelectionGoal::None);
6198
6199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6200 s.select(vec![selection]);
6201 });
6202 }
6203
6204 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6205 if matches!(self.mode, EditorMode::SingleLine) {
6206 cx.propagate();
6207 return;
6208 }
6209
6210 let cursor = self.buffer.read(cx).read(cx).len();
6211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6212 s.select_ranges(vec![cursor..cursor])
6213 });
6214 }
6215
6216 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6217 self.nav_history = nav_history;
6218 }
6219
6220 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6221 self.nav_history.as_ref()
6222 }
6223
6224 fn push_to_nav_history(
6225 &mut self,
6226 cursor_anchor: Anchor,
6227 new_position: Option<Point>,
6228 cx: &mut ViewContext<Self>,
6229 ) {
6230 if let Some(nav_history) = self.nav_history.as_mut() {
6231 let buffer = self.buffer.read(cx).read(cx);
6232 let cursor_position = cursor_anchor.to_point(&buffer);
6233 let scroll_state = self.scroll_manager.anchor();
6234 let scroll_top_row = scroll_state.top_row(&buffer);
6235 drop(buffer);
6236
6237 if let Some(new_position) = new_position {
6238 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6239 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6240 return;
6241 }
6242 }
6243
6244 nav_history.push(
6245 Some(NavigationData {
6246 cursor_anchor,
6247 cursor_position,
6248 scroll_anchor: scroll_state,
6249 scroll_top_row,
6250 }),
6251 cx,
6252 );
6253 }
6254 }
6255
6256 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6257 let buffer = self.buffer.read(cx).snapshot(cx);
6258 let mut selection = self.selections.first::<usize>(cx);
6259 selection.set_head(buffer.len(), SelectionGoal::None);
6260 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6261 s.select(vec![selection]);
6262 });
6263 }
6264
6265 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6266 let end = self.buffer.read(cx).read(cx).len();
6267 self.change_selections(None, cx, |s| {
6268 s.select_ranges(vec![0..end]);
6269 });
6270 }
6271
6272 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6273 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6274 let mut selections = self.selections.all::<Point>(cx);
6275 let max_point = display_map.buffer_snapshot.max_point();
6276 for selection in &mut selections {
6277 let rows = selection.spanned_rows(true, &display_map);
6278 selection.start = Point::new(rows.start, 0);
6279 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6280 selection.reversed = false;
6281 }
6282 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6283 s.select(selections);
6284 });
6285 }
6286
6287 pub fn split_selection_into_lines(
6288 &mut self,
6289 _: &SplitSelectionIntoLines,
6290 cx: &mut ViewContext<Self>,
6291 ) {
6292 let mut to_unfold = Vec::new();
6293 let mut new_selection_ranges = Vec::new();
6294 {
6295 let selections = self.selections.all::<Point>(cx);
6296 let buffer = self.buffer.read(cx).read(cx);
6297 for selection in selections {
6298 for row in selection.start.row..selection.end.row {
6299 let cursor = Point::new(row, buffer.line_len(row));
6300 new_selection_ranges.push(cursor..cursor);
6301 }
6302 new_selection_ranges.push(selection.end..selection.end);
6303 to_unfold.push(selection.start..selection.end);
6304 }
6305 }
6306 self.unfold_ranges(to_unfold, true, true, cx);
6307 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6308 s.select_ranges(new_selection_ranges);
6309 });
6310 }
6311
6312 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6313 self.add_selection(true, cx);
6314 }
6315
6316 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6317 self.add_selection(false, cx);
6318 }
6319
6320 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6321 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6322 let mut selections = self.selections.all::<Point>(cx);
6323 let text_layout_details = self.text_layout_details(cx);
6324 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6325 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6326 let range = oldest_selection.display_range(&display_map).sorted();
6327
6328 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6329 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6330 let positions = start_x.min(end_x)..start_x.max(end_x);
6331
6332 selections.clear();
6333 let mut stack = Vec::new();
6334 for row in range.start.row()..=range.end.row() {
6335 if let Some(selection) = self.selections.build_columnar_selection(
6336 &display_map,
6337 row,
6338 &positions,
6339 oldest_selection.reversed,
6340 &text_layout_details,
6341 ) {
6342 stack.push(selection.id);
6343 selections.push(selection);
6344 }
6345 }
6346
6347 if above {
6348 stack.reverse();
6349 }
6350
6351 AddSelectionsState { above, stack }
6352 });
6353
6354 let last_added_selection = *state.stack.last().unwrap();
6355 let mut new_selections = Vec::new();
6356 if above == state.above {
6357 let end_row = if above {
6358 0
6359 } else {
6360 display_map.max_point().row()
6361 };
6362
6363 'outer: for selection in selections {
6364 if selection.id == last_added_selection {
6365 let range = selection.display_range(&display_map).sorted();
6366 debug_assert_eq!(range.start.row(), range.end.row());
6367 let mut row = range.start.row();
6368 let positions =
6369 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6370 px(start)..px(end)
6371 } else {
6372 let start_x =
6373 display_map.x_for_display_point(range.start, &text_layout_details);
6374 let end_x =
6375 display_map.x_for_display_point(range.end, &text_layout_details);
6376 start_x.min(end_x)..start_x.max(end_x)
6377 };
6378
6379 while row != end_row {
6380 if above {
6381 row -= 1;
6382 } else {
6383 row += 1;
6384 }
6385
6386 if let Some(new_selection) = self.selections.build_columnar_selection(
6387 &display_map,
6388 row,
6389 &positions,
6390 selection.reversed,
6391 &text_layout_details,
6392 ) {
6393 state.stack.push(new_selection.id);
6394 if above {
6395 new_selections.push(new_selection);
6396 new_selections.push(selection);
6397 } else {
6398 new_selections.push(selection);
6399 new_selections.push(new_selection);
6400 }
6401
6402 continue 'outer;
6403 }
6404 }
6405 }
6406
6407 new_selections.push(selection);
6408 }
6409 } else {
6410 new_selections = selections;
6411 new_selections.retain(|s| s.id != last_added_selection);
6412 state.stack.pop();
6413 }
6414
6415 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6416 s.select(new_selections);
6417 });
6418 if state.stack.len() > 1 {
6419 self.add_selections_state = Some(state);
6420 }
6421 }
6422
6423 pub fn select_next_match_internal(
6424 &mut self,
6425 display_map: &DisplaySnapshot,
6426 replace_newest: bool,
6427 autoscroll: Option<Autoscroll>,
6428 cx: &mut ViewContext<Self>,
6429 ) -> Result<()> {
6430 fn select_next_match_ranges(
6431 this: &mut Editor,
6432 range: Range<usize>,
6433 replace_newest: bool,
6434 auto_scroll: Option<Autoscroll>,
6435 cx: &mut ViewContext<Editor>,
6436 ) {
6437 this.unfold_ranges([range.clone()], false, true, cx);
6438 this.change_selections(auto_scroll, cx, |s| {
6439 if replace_newest {
6440 s.delete(s.newest_anchor().id);
6441 }
6442 s.insert_range(range.clone());
6443 });
6444 }
6445
6446 let buffer = &display_map.buffer_snapshot;
6447 let mut selections = self.selections.all::<usize>(cx);
6448 if let Some(mut select_next_state) = self.select_next_state.take() {
6449 let query = &select_next_state.query;
6450 if !select_next_state.done {
6451 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6452 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6453 let mut next_selected_range = None;
6454
6455 let bytes_after_last_selection =
6456 buffer.bytes_in_range(last_selection.end..buffer.len());
6457 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6458 let query_matches = query
6459 .stream_find_iter(bytes_after_last_selection)
6460 .map(|result| (last_selection.end, result))
6461 .chain(
6462 query
6463 .stream_find_iter(bytes_before_first_selection)
6464 .map(|result| (0, result)),
6465 );
6466
6467 for (start_offset, query_match) in query_matches {
6468 let query_match = query_match.unwrap(); // can only fail due to I/O
6469 let offset_range =
6470 start_offset + query_match.start()..start_offset + query_match.end();
6471 let display_range = offset_range.start.to_display_point(&display_map)
6472 ..offset_range.end.to_display_point(&display_map);
6473
6474 if !select_next_state.wordwise
6475 || (!movement::is_inside_word(&display_map, display_range.start)
6476 && !movement::is_inside_word(&display_map, display_range.end))
6477 {
6478 // TODO: This is n^2, because we might check all the selections
6479 if !selections
6480 .iter()
6481 .any(|selection| selection.range().overlaps(&offset_range))
6482 {
6483 next_selected_range = Some(offset_range);
6484 break;
6485 }
6486 }
6487 }
6488
6489 if let Some(next_selected_range) = next_selected_range {
6490 select_next_match_ranges(
6491 self,
6492 next_selected_range,
6493 replace_newest,
6494 autoscroll,
6495 cx,
6496 );
6497 } else {
6498 select_next_state.done = true;
6499 }
6500 }
6501
6502 self.select_next_state = Some(select_next_state);
6503 } else {
6504 let mut only_carets = true;
6505 let mut same_text_selected = true;
6506 let mut selected_text = None;
6507
6508 let mut selections_iter = selections.iter().peekable();
6509 while let Some(selection) = selections_iter.next() {
6510 if selection.start != selection.end {
6511 only_carets = false;
6512 }
6513
6514 if same_text_selected {
6515 if selected_text.is_none() {
6516 selected_text =
6517 Some(buffer.text_for_range(selection.range()).collect::<String>());
6518 }
6519
6520 if let Some(next_selection) = selections_iter.peek() {
6521 if next_selection.range().len() == selection.range().len() {
6522 let next_selected_text = buffer
6523 .text_for_range(next_selection.range())
6524 .collect::<String>();
6525 if Some(next_selected_text) != selected_text {
6526 same_text_selected = false;
6527 selected_text = None;
6528 }
6529 } else {
6530 same_text_selected = false;
6531 selected_text = None;
6532 }
6533 }
6534 }
6535 }
6536
6537 if only_carets {
6538 for selection in &mut selections {
6539 let word_range = movement::surrounding_word(
6540 &display_map,
6541 selection.start.to_display_point(&display_map),
6542 );
6543 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6544 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6545 selection.goal = SelectionGoal::None;
6546 selection.reversed = false;
6547 select_next_match_ranges(
6548 self,
6549 selection.start..selection.end,
6550 replace_newest,
6551 autoscroll,
6552 cx,
6553 );
6554 }
6555
6556 if selections.len() == 1 {
6557 let selection = selections
6558 .last()
6559 .expect("ensured that there's only one selection");
6560 let query = buffer
6561 .text_for_range(selection.start..selection.end)
6562 .collect::<String>();
6563 let is_empty = query.is_empty();
6564 let select_state = SelectNextState {
6565 query: AhoCorasick::new(&[query])?,
6566 wordwise: true,
6567 done: is_empty,
6568 };
6569 self.select_next_state = Some(select_state);
6570 } else {
6571 self.select_next_state = None;
6572 }
6573 } else if let Some(selected_text) = selected_text {
6574 self.select_next_state = Some(SelectNextState {
6575 query: AhoCorasick::new(&[selected_text])?,
6576 wordwise: false,
6577 done: false,
6578 });
6579 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6580 }
6581 }
6582 Ok(())
6583 }
6584
6585 pub fn select_all_matches(
6586 &mut self,
6587 _action: &SelectAllMatches,
6588 cx: &mut ViewContext<Self>,
6589 ) -> Result<()> {
6590 self.push_to_selection_history();
6591 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6592
6593 self.select_next_match_internal(&display_map, false, None, cx)?;
6594 let Some(select_next_state) = self.select_next_state.as_mut() else {
6595 return Ok(());
6596 };
6597 if select_next_state.done {
6598 return Ok(());
6599 }
6600
6601 let mut new_selections = self.selections.all::<usize>(cx);
6602
6603 let buffer = &display_map.buffer_snapshot;
6604 let query_matches = select_next_state
6605 .query
6606 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6607
6608 for query_match in query_matches {
6609 let query_match = query_match.unwrap(); // can only fail due to I/O
6610 let offset_range = query_match.start()..query_match.end();
6611 let display_range = offset_range.start.to_display_point(&display_map)
6612 ..offset_range.end.to_display_point(&display_map);
6613
6614 if !select_next_state.wordwise
6615 || (!movement::is_inside_word(&display_map, display_range.start)
6616 && !movement::is_inside_word(&display_map, display_range.end))
6617 {
6618 self.selections.change_with(cx, |selections| {
6619 new_selections.push(Selection {
6620 id: selections.new_selection_id(),
6621 start: offset_range.start,
6622 end: offset_range.end,
6623 reversed: false,
6624 goal: SelectionGoal::None,
6625 });
6626 });
6627 }
6628 }
6629
6630 new_selections.sort_by_key(|selection| selection.start);
6631 let mut ix = 0;
6632 while ix + 1 < new_selections.len() {
6633 let current_selection = &new_selections[ix];
6634 let next_selection = &new_selections[ix + 1];
6635 if current_selection.range().overlaps(&next_selection.range()) {
6636 if current_selection.id < next_selection.id {
6637 new_selections.remove(ix + 1);
6638 } else {
6639 new_selections.remove(ix);
6640 }
6641 } else {
6642 ix += 1;
6643 }
6644 }
6645
6646 select_next_state.done = true;
6647 self.unfold_ranges(
6648 new_selections.iter().map(|selection| selection.range()),
6649 false,
6650 false,
6651 cx,
6652 );
6653 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6654 selections.select(new_selections)
6655 });
6656
6657 Ok(())
6658 }
6659
6660 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6661 self.push_to_selection_history();
6662 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6663 self.select_next_match_internal(
6664 &display_map,
6665 action.replace_newest,
6666 Some(Autoscroll::newest()),
6667 cx,
6668 )?;
6669 Ok(())
6670 }
6671
6672 pub fn select_previous(
6673 &mut self,
6674 action: &SelectPrevious,
6675 cx: &mut ViewContext<Self>,
6676 ) -> Result<()> {
6677 self.push_to_selection_history();
6678 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6679 let buffer = &display_map.buffer_snapshot;
6680 let mut selections = self.selections.all::<usize>(cx);
6681 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6682 let query = &select_prev_state.query;
6683 if !select_prev_state.done {
6684 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6685 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6686 let mut next_selected_range = None;
6687 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6688 let bytes_before_last_selection =
6689 buffer.reversed_bytes_in_range(0..last_selection.start);
6690 let bytes_after_first_selection =
6691 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6692 let query_matches = query
6693 .stream_find_iter(bytes_before_last_selection)
6694 .map(|result| (last_selection.start, result))
6695 .chain(
6696 query
6697 .stream_find_iter(bytes_after_first_selection)
6698 .map(|result| (buffer.len(), result)),
6699 );
6700 for (end_offset, query_match) in query_matches {
6701 let query_match = query_match.unwrap(); // can only fail due to I/O
6702 let offset_range =
6703 end_offset - query_match.end()..end_offset - query_match.start();
6704 let display_range = offset_range.start.to_display_point(&display_map)
6705 ..offset_range.end.to_display_point(&display_map);
6706
6707 if !select_prev_state.wordwise
6708 || (!movement::is_inside_word(&display_map, display_range.start)
6709 && !movement::is_inside_word(&display_map, display_range.end))
6710 {
6711 next_selected_range = Some(offset_range);
6712 break;
6713 }
6714 }
6715
6716 if let Some(next_selected_range) = next_selected_range {
6717 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6718 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6719 if action.replace_newest {
6720 s.delete(s.newest_anchor().id);
6721 }
6722 s.insert_range(next_selected_range);
6723 });
6724 } else {
6725 select_prev_state.done = true;
6726 }
6727 }
6728
6729 self.select_prev_state = Some(select_prev_state);
6730 } else {
6731 let mut only_carets = true;
6732 let mut same_text_selected = true;
6733 let mut selected_text = None;
6734
6735 let mut selections_iter = selections.iter().peekable();
6736 while let Some(selection) = selections_iter.next() {
6737 if selection.start != selection.end {
6738 only_carets = false;
6739 }
6740
6741 if same_text_selected {
6742 if selected_text.is_none() {
6743 selected_text =
6744 Some(buffer.text_for_range(selection.range()).collect::<String>());
6745 }
6746
6747 if let Some(next_selection) = selections_iter.peek() {
6748 if next_selection.range().len() == selection.range().len() {
6749 let next_selected_text = buffer
6750 .text_for_range(next_selection.range())
6751 .collect::<String>();
6752 if Some(next_selected_text) != selected_text {
6753 same_text_selected = false;
6754 selected_text = None;
6755 }
6756 } else {
6757 same_text_selected = false;
6758 selected_text = None;
6759 }
6760 }
6761 }
6762 }
6763
6764 if only_carets {
6765 for selection in &mut selections {
6766 let word_range = movement::surrounding_word(
6767 &display_map,
6768 selection.start.to_display_point(&display_map),
6769 );
6770 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6771 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6772 selection.goal = SelectionGoal::None;
6773 selection.reversed = false;
6774 }
6775 if selections.len() == 1 {
6776 let selection = selections
6777 .last()
6778 .expect("ensured that there's only one selection");
6779 let query = buffer
6780 .text_for_range(selection.start..selection.end)
6781 .collect::<String>();
6782 let is_empty = query.is_empty();
6783 let select_state = SelectNextState {
6784 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6785 wordwise: true,
6786 done: is_empty,
6787 };
6788 self.select_prev_state = Some(select_state);
6789 } else {
6790 self.select_prev_state = None;
6791 }
6792
6793 self.unfold_ranges(
6794 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6795 false,
6796 true,
6797 cx,
6798 );
6799 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6800 s.select(selections);
6801 });
6802 } else if let Some(selected_text) = selected_text {
6803 self.select_prev_state = Some(SelectNextState {
6804 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6805 wordwise: false,
6806 done: false,
6807 });
6808 self.select_previous(action, cx)?;
6809 }
6810 }
6811 Ok(())
6812 }
6813
6814 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6815 let text_layout_details = &self.text_layout_details(cx);
6816 self.transact(cx, |this, cx| {
6817 let mut selections = this.selections.all::<Point>(cx);
6818 let mut edits = Vec::new();
6819 let mut selection_edit_ranges = Vec::new();
6820 let mut last_toggled_row = None;
6821 let snapshot = this.buffer.read(cx).read(cx);
6822 let empty_str: Arc<str> = "".into();
6823 let mut suffixes_inserted = Vec::new();
6824
6825 fn comment_prefix_range(
6826 snapshot: &MultiBufferSnapshot,
6827 row: u32,
6828 comment_prefix: &str,
6829 comment_prefix_whitespace: &str,
6830 ) -> Range<Point> {
6831 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6832
6833 let mut line_bytes = snapshot
6834 .bytes_in_range(start..snapshot.max_point())
6835 .flatten()
6836 .copied();
6837
6838 // If this line currently begins with the line comment prefix, then record
6839 // the range containing the prefix.
6840 if line_bytes
6841 .by_ref()
6842 .take(comment_prefix.len())
6843 .eq(comment_prefix.bytes())
6844 {
6845 // Include any whitespace that matches the comment prefix.
6846 let matching_whitespace_len = line_bytes
6847 .zip(comment_prefix_whitespace.bytes())
6848 .take_while(|(a, b)| a == b)
6849 .count() as u32;
6850 let end = Point::new(
6851 start.row,
6852 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6853 );
6854 start..end
6855 } else {
6856 start..start
6857 }
6858 }
6859
6860 fn comment_suffix_range(
6861 snapshot: &MultiBufferSnapshot,
6862 row: u32,
6863 comment_suffix: &str,
6864 comment_suffix_has_leading_space: bool,
6865 ) -> Range<Point> {
6866 let end = Point::new(row, snapshot.line_len(row));
6867 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6868
6869 let mut line_end_bytes = snapshot
6870 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6871 .flatten()
6872 .copied();
6873
6874 let leading_space_len = if suffix_start_column > 0
6875 && line_end_bytes.next() == Some(b' ')
6876 && comment_suffix_has_leading_space
6877 {
6878 1
6879 } else {
6880 0
6881 };
6882
6883 // If this line currently begins with the line comment prefix, then record
6884 // the range containing the prefix.
6885 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6886 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6887 start..end
6888 } else {
6889 end..end
6890 }
6891 }
6892
6893 // TODO: Handle selections that cross excerpts
6894 for selection in &mut selections {
6895 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6896 let language = if let Some(language) =
6897 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6898 {
6899 language
6900 } else {
6901 continue;
6902 };
6903
6904 selection_edit_ranges.clear();
6905
6906 // If multiple selections contain a given row, avoid processing that
6907 // row more than once.
6908 let mut start_row = selection.start.row;
6909 if last_toggled_row == Some(start_row) {
6910 start_row += 1;
6911 }
6912 let end_row =
6913 if selection.end.row > selection.start.row && selection.end.column == 0 {
6914 selection.end.row - 1
6915 } else {
6916 selection.end.row
6917 };
6918 last_toggled_row = Some(end_row);
6919
6920 if start_row > end_row {
6921 continue;
6922 }
6923
6924 // If the language has line comments, toggle those.
6925 if let Some(full_comment_prefix) = language
6926 .line_comment_prefixes()
6927 .and_then(|prefixes| prefixes.first())
6928 {
6929 // Split the comment prefix's trailing whitespace into a separate string,
6930 // as that portion won't be used for detecting if a line is a comment.
6931 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6932 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6933 let mut all_selection_lines_are_comments = true;
6934
6935 for row in start_row..=end_row {
6936 if start_row < end_row && snapshot.is_line_blank(row) {
6937 continue;
6938 }
6939
6940 let prefix_range = comment_prefix_range(
6941 snapshot.deref(),
6942 row,
6943 comment_prefix,
6944 comment_prefix_whitespace,
6945 );
6946 if prefix_range.is_empty() {
6947 all_selection_lines_are_comments = false;
6948 }
6949 selection_edit_ranges.push(prefix_range);
6950 }
6951
6952 if all_selection_lines_are_comments {
6953 edits.extend(
6954 selection_edit_ranges
6955 .iter()
6956 .cloned()
6957 .map(|range| (range, empty_str.clone())),
6958 );
6959 } else {
6960 let min_column = selection_edit_ranges
6961 .iter()
6962 .map(|r| r.start.column)
6963 .min()
6964 .unwrap_or(0);
6965 edits.extend(selection_edit_ranges.iter().map(|range| {
6966 let position = Point::new(range.start.row, min_column);
6967 (position..position, full_comment_prefix.clone())
6968 }));
6969 }
6970 } else if let Some((full_comment_prefix, comment_suffix)) =
6971 language.block_comment_delimiters()
6972 {
6973 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6974 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6975 let prefix_range = comment_prefix_range(
6976 snapshot.deref(),
6977 start_row,
6978 comment_prefix,
6979 comment_prefix_whitespace,
6980 );
6981 let suffix_range = comment_suffix_range(
6982 snapshot.deref(),
6983 end_row,
6984 comment_suffix.trim_start_matches(' '),
6985 comment_suffix.starts_with(' '),
6986 );
6987
6988 if prefix_range.is_empty() || suffix_range.is_empty() {
6989 edits.push((
6990 prefix_range.start..prefix_range.start,
6991 full_comment_prefix.clone(),
6992 ));
6993 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6994 suffixes_inserted.push((end_row, comment_suffix.len()));
6995 } else {
6996 edits.push((prefix_range, empty_str.clone()));
6997 edits.push((suffix_range, empty_str.clone()));
6998 }
6999 } else {
7000 continue;
7001 }
7002 }
7003
7004 drop(snapshot);
7005 this.buffer.update(cx, |buffer, cx| {
7006 buffer.edit(edits, None, cx);
7007 });
7008
7009 // Adjust selections so that they end before any comment suffixes that
7010 // were inserted.
7011 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7012 let mut selections = this.selections.all::<Point>(cx);
7013 let snapshot = this.buffer.read(cx).read(cx);
7014 for selection in &mut selections {
7015 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7016 match row.cmp(&selection.end.row) {
7017 Ordering::Less => {
7018 suffixes_inserted.next();
7019 continue;
7020 }
7021 Ordering::Greater => break,
7022 Ordering::Equal => {
7023 if selection.end.column == snapshot.line_len(row) {
7024 if selection.is_empty() {
7025 selection.start.column -= suffix_len as u32;
7026 }
7027 selection.end.column -= suffix_len as u32;
7028 }
7029 break;
7030 }
7031 }
7032 }
7033 }
7034
7035 drop(snapshot);
7036 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7037
7038 let selections = this.selections.all::<Point>(cx);
7039 let selections_on_single_row = selections.windows(2).all(|selections| {
7040 selections[0].start.row == selections[1].start.row
7041 && selections[0].end.row == selections[1].end.row
7042 && selections[0].start.row == selections[0].end.row
7043 });
7044 let selections_selecting = selections
7045 .iter()
7046 .any(|selection| selection.start != selection.end);
7047 let advance_downwards = action.advance_downwards
7048 && selections_on_single_row
7049 && !selections_selecting
7050 && this.mode != EditorMode::SingleLine;
7051
7052 if advance_downwards {
7053 let snapshot = this.buffer.read(cx).snapshot(cx);
7054
7055 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7056 s.move_cursors_with(|display_snapshot, display_point, _| {
7057 let mut point = display_point.to_point(display_snapshot);
7058 point.row += 1;
7059 point = snapshot.clip_point(point, Bias::Left);
7060 let display_point = point.to_display_point(display_snapshot);
7061 let goal = SelectionGoal::HorizontalPosition(
7062 display_snapshot
7063 .x_for_display_point(display_point, &text_layout_details)
7064 .into(),
7065 );
7066 (display_point, goal)
7067 })
7068 });
7069 }
7070 });
7071 }
7072
7073 pub fn select_larger_syntax_node(
7074 &mut self,
7075 _: &SelectLargerSyntaxNode,
7076 cx: &mut ViewContext<Self>,
7077 ) {
7078 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7079 let buffer = self.buffer.read(cx).snapshot(cx);
7080 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7081
7082 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7083 let mut selected_larger_node = false;
7084 let new_selections = old_selections
7085 .iter()
7086 .map(|selection| {
7087 let old_range = selection.start..selection.end;
7088 let mut new_range = old_range.clone();
7089 while let Some(containing_range) =
7090 buffer.range_for_syntax_ancestor(new_range.clone())
7091 {
7092 new_range = containing_range;
7093 if !display_map.intersects_fold(new_range.start)
7094 && !display_map.intersects_fold(new_range.end)
7095 {
7096 break;
7097 }
7098 }
7099
7100 selected_larger_node |= new_range != old_range;
7101 Selection {
7102 id: selection.id,
7103 start: new_range.start,
7104 end: new_range.end,
7105 goal: SelectionGoal::None,
7106 reversed: selection.reversed,
7107 }
7108 })
7109 .collect::<Vec<_>>();
7110
7111 if selected_larger_node {
7112 stack.push(old_selections);
7113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7114 s.select(new_selections);
7115 });
7116 }
7117 self.select_larger_syntax_node_stack = stack;
7118 }
7119
7120 pub fn select_smaller_syntax_node(
7121 &mut self,
7122 _: &SelectSmallerSyntaxNode,
7123 cx: &mut ViewContext<Self>,
7124 ) {
7125 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7126 if let Some(selections) = stack.pop() {
7127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7128 s.select(selections.to_vec());
7129 });
7130 }
7131 self.select_larger_syntax_node_stack = stack;
7132 }
7133
7134 pub fn move_to_enclosing_bracket(
7135 &mut self,
7136 _: &MoveToEnclosingBracket,
7137 cx: &mut ViewContext<Self>,
7138 ) {
7139 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7140 s.move_offsets_with(|snapshot, selection| {
7141 let Some(enclosing_bracket_ranges) =
7142 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7143 else {
7144 return;
7145 };
7146
7147 let mut best_length = usize::MAX;
7148 let mut best_inside = false;
7149 let mut best_in_bracket_range = false;
7150 let mut best_destination = None;
7151 for (open, close) in enclosing_bracket_ranges {
7152 let close = close.to_inclusive();
7153 let length = close.end() - open.start;
7154 let inside = selection.start >= open.end && selection.end <= *close.start();
7155 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7156 || close.contains(&selection.head());
7157
7158 // If best is next to a bracket and current isn't, skip
7159 if !in_bracket_range && best_in_bracket_range {
7160 continue;
7161 }
7162
7163 // Prefer smaller lengths unless best is inside and current isn't
7164 if length > best_length && (best_inside || !inside) {
7165 continue;
7166 }
7167
7168 best_length = length;
7169 best_inside = inside;
7170 best_in_bracket_range = in_bracket_range;
7171 best_destination = Some(
7172 if close.contains(&selection.start) && close.contains(&selection.end) {
7173 if inside {
7174 open.end
7175 } else {
7176 open.start
7177 }
7178 } else {
7179 if inside {
7180 *close.start()
7181 } else {
7182 *close.end()
7183 }
7184 },
7185 );
7186 }
7187
7188 if let Some(destination) = best_destination {
7189 selection.collapse_to(destination, SelectionGoal::None);
7190 }
7191 })
7192 });
7193 }
7194
7195 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7196 self.end_selection(cx);
7197 self.selection_history.mode = SelectionHistoryMode::Undoing;
7198 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7199 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7200 self.select_next_state = entry.select_next_state;
7201 self.select_prev_state = entry.select_prev_state;
7202 self.add_selections_state = entry.add_selections_state;
7203 self.request_autoscroll(Autoscroll::newest(), cx);
7204 }
7205 self.selection_history.mode = SelectionHistoryMode::Normal;
7206 }
7207
7208 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7209 self.end_selection(cx);
7210 self.selection_history.mode = SelectionHistoryMode::Redoing;
7211 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7212 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7213 self.select_next_state = entry.select_next_state;
7214 self.select_prev_state = entry.select_prev_state;
7215 self.add_selections_state = entry.add_selections_state;
7216 self.request_autoscroll(Autoscroll::newest(), cx);
7217 }
7218 self.selection_history.mode = SelectionHistoryMode::Normal;
7219 }
7220
7221 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7222 self.go_to_diagnostic_impl(Direction::Next, cx)
7223 }
7224
7225 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7226 self.go_to_diagnostic_impl(Direction::Prev, cx)
7227 }
7228
7229 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7230 let buffer = self.buffer.read(cx).snapshot(cx);
7231 let selection = self.selections.newest::<usize>(cx);
7232
7233 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7234 if direction == Direction::Next {
7235 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7236 let (group_id, jump_to) = popover.activation_info();
7237 if self.activate_diagnostics(group_id, cx) {
7238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7239 let mut new_selection = s.newest_anchor().clone();
7240 new_selection.collapse_to(jump_to, SelectionGoal::None);
7241 s.select_anchors(vec![new_selection.clone()]);
7242 });
7243 }
7244 return;
7245 }
7246 }
7247
7248 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7249 active_diagnostics
7250 .primary_range
7251 .to_offset(&buffer)
7252 .to_inclusive()
7253 });
7254 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7255 if active_primary_range.contains(&selection.head()) {
7256 *active_primary_range.end()
7257 } else {
7258 selection.head()
7259 }
7260 } else {
7261 selection.head()
7262 };
7263
7264 loop {
7265 let mut diagnostics = if direction == Direction::Prev {
7266 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7267 } else {
7268 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7269 };
7270 let group = diagnostics.find_map(|entry| {
7271 if entry.diagnostic.is_primary
7272 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7273 && !entry.range.is_empty()
7274 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7275 && !entry.range.contains(&search_start)
7276 {
7277 Some((entry.range, entry.diagnostic.group_id))
7278 } else {
7279 None
7280 }
7281 });
7282
7283 if let Some((primary_range, group_id)) = group {
7284 if self.activate_diagnostics(group_id, cx) {
7285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7286 s.select(vec![Selection {
7287 id: selection.id,
7288 start: primary_range.start,
7289 end: primary_range.start,
7290 reversed: false,
7291 goal: SelectionGoal::None,
7292 }]);
7293 });
7294 }
7295 break;
7296 } else {
7297 // Cycle around to the start of the buffer, potentially moving back to the start of
7298 // the currently active diagnostic.
7299 active_primary_range.take();
7300 if direction == Direction::Prev {
7301 if search_start == buffer.len() {
7302 break;
7303 } else {
7304 search_start = buffer.len();
7305 }
7306 } else if search_start == 0 {
7307 break;
7308 } else {
7309 search_start = 0;
7310 }
7311 }
7312 }
7313 }
7314
7315 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7316 let snapshot = self
7317 .display_map
7318 .update(cx, |display_map, cx| display_map.snapshot(cx));
7319 let selection = self.selections.newest::<Point>(cx);
7320
7321 if !self.seek_in_direction(
7322 &snapshot,
7323 selection.head(),
7324 false,
7325 snapshot
7326 .buffer_snapshot
7327 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7328 cx,
7329 ) {
7330 let wrapped_point = Point::zero();
7331 self.seek_in_direction(
7332 &snapshot,
7333 wrapped_point,
7334 true,
7335 snapshot
7336 .buffer_snapshot
7337 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7338 cx,
7339 );
7340 }
7341 }
7342
7343 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7344 let snapshot = self
7345 .display_map
7346 .update(cx, |display_map, cx| display_map.snapshot(cx));
7347 let selection = self.selections.newest::<Point>(cx);
7348
7349 if !self.seek_in_direction(
7350 &snapshot,
7351 selection.head(),
7352 false,
7353 snapshot
7354 .buffer_snapshot
7355 .git_diff_hunks_in_range_rev(0..selection.head().row),
7356 cx,
7357 ) {
7358 let wrapped_point = snapshot.buffer_snapshot.max_point();
7359 self.seek_in_direction(
7360 &snapshot,
7361 wrapped_point,
7362 true,
7363 snapshot
7364 .buffer_snapshot
7365 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7366 cx,
7367 );
7368 }
7369 }
7370
7371 fn seek_in_direction(
7372 &mut self,
7373 snapshot: &DisplaySnapshot,
7374 initial_point: Point,
7375 is_wrapped: bool,
7376 hunks: impl Iterator<Item = DiffHunk<u32>>,
7377 cx: &mut ViewContext<Editor>,
7378 ) -> bool {
7379 let display_point = initial_point.to_display_point(snapshot);
7380 let mut hunks = hunks
7381 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7382 .filter(|hunk| {
7383 if is_wrapped {
7384 true
7385 } else {
7386 !hunk.contains_display_row(display_point.row())
7387 }
7388 })
7389 .dedup();
7390
7391 if let Some(hunk) = hunks.next() {
7392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7393 let row = hunk.start_display_row();
7394 let point = DisplayPoint::new(row, 0);
7395 s.select_display_ranges([point..point]);
7396 });
7397
7398 true
7399 } else {
7400 false
7401 }
7402 }
7403
7404 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7405 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7406 }
7407
7408 pub fn go_to_implementation(&mut self, _: &GoToImplementation, cx: &mut ViewContext<Self>) {
7409 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx);
7410 }
7411
7412 pub fn go_to_implementation_split(
7413 &mut self,
7414 _: &GoToImplementationSplit,
7415 cx: &mut ViewContext<Self>,
7416 ) {
7417 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx);
7418 }
7419
7420 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7421 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7422 }
7423
7424 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7425 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7426 }
7427
7428 pub fn go_to_type_definition_split(
7429 &mut self,
7430 _: &GoToTypeDefinitionSplit,
7431 cx: &mut ViewContext<Self>,
7432 ) {
7433 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7434 }
7435
7436 fn go_to_definition_of_kind(
7437 &mut self,
7438 kind: GotoDefinitionKind,
7439 split: bool,
7440 cx: &mut ViewContext<Self>,
7441 ) {
7442 let Some(workspace) = self.workspace() else {
7443 return;
7444 };
7445 let buffer = self.buffer.read(cx);
7446 let head = self.selections.newest::<usize>(cx).head();
7447 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7448 text_anchor
7449 } else {
7450 return;
7451 };
7452
7453 let project = workspace.read(cx).project().clone();
7454 let definitions = project.update(cx, |project, cx| match kind {
7455 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7456 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7457 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7458 });
7459
7460 cx.spawn(|editor, mut cx| async move {
7461 let definitions = definitions.await?;
7462 editor.update(&mut cx, |editor, cx| {
7463 editor.navigate_to_hover_links(
7464 Some(kind),
7465 definitions.into_iter().map(HoverLink::Text).collect(),
7466 split,
7467 cx,
7468 );
7469 })?;
7470 Ok::<(), anyhow::Error>(())
7471 })
7472 .detach_and_log_err(cx);
7473 }
7474
7475 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7476 let position = self.selections.newest_anchor().head();
7477 let Some((buffer, buffer_position)) =
7478 self.buffer.read(cx).text_anchor_for_position(position, cx)
7479 else {
7480 return;
7481 };
7482
7483 cx.spawn(|editor, mut cx| async move {
7484 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7485 editor.update(&mut cx, |_, cx| {
7486 cx.open_url(&url);
7487 })
7488 } else {
7489 Ok(())
7490 }
7491 })
7492 .detach();
7493 }
7494
7495 pub(crate) fn navigate_to_hover_links(
7496 &mut self,
7497 kind: Option<GotoDefinitionKind>,
7498 mut definitions: Vec<HoverLink>,
7499 split: bool,
7500 cx: &mut ViewContext<Editor>,
7501 ) {
7502 // If there is one definition, just open it directly
7503 if definitions.len() == 1 {
7504 let definition = definitions.pop().unwrap();
7505 let target_task = match definition {
7506 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7507 HoverLink::InlayHint(lsp_location, server_id) => {
7508 self.compute_target_location(lsp_location, server_id, cx)
7509 }
7510 HoverLink::Url(url) => {
7511 cx.open_url(&url);
7512 Task::ready(Ok(None))
7513 }
7514 };
7515 cx.spawn(|editor, mut cx| async move {
7516 let target = target_task.await.context("target resolution task")?;
7517 if let Some(target) = target {
7518 editor.update(&mut cx, |editor, cx| {
7519 let Some(workspace) = editor.workspace() else {
7520 return;
7521 };
7522 let pane = workspace.read(cx).active_pane().clone();
7523
7524 let range = target.range.to_offset(target.buffer.read(cx));
7525 let range = editor.range_for_match(&range);
7526 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7527 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7528 s.select_ranges([range]);
7529 });
7530 } else {
7531 cx.window_context().defer(move |cx| {
7532 let target_editor: View<Self> =
7533 workspace.update(cx, |workspace, cx| {
7534 let pane = if split {
7535 workspace.adjacent_pane(cx)
7536 } else {
7537 workspace.active_pane().clone()
7538 };
7539
7540 workspace.open_project_item(pane, target.buffer.clone(), cx)
7541 });
7542 target_editor.update(cx, |target_editor, cx| {
7543 // When selecting a definition in a different buffer, disable the nav history
7544 // to avoid creating a history entry at the previous cursor location.
7545 pane.update(cx, |pane, _| pane.disable_history());
7546 target_editor.change_selections(
7547 Some(Autoscroll::fit()),
7548 cx,
7549 |s| {
7550 s.select_ranges([range]);
7551 },
7552 );
7553 pane.update(cx, |pane, _| pane.enable_history());
7554 });
7555 });
7556 }
7557 })
7558 } else {
7559 Ok(())
7560 }
7561 })
7562 .detach_and_log_err(cx);
7563 } else if !definitions.is_empty() {
7564 let replica_id = self.replica_id(cx);
7565 cx.spawn(|editor, mut cx| async move {
7566 let (title, location_tasks, workspace) = editor
7567 .update(&mut cx, |editor, cx| {
7568 let tab_kind = match kind {
7569 Some(GotoDefinitionKind::Implementation) => "Implementations",
7570 _ => "Definitions",
7571 };
7572 let title = definitions
7573 .iter()
7574 .find_map(|definition| match definition {
7575 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7576 let buffer = origin.buffer.read(cx);
7577 format!(
7578 "{} for {}",
7579 tab_kind,
7580 buffer
7581 .text_for_range(origin.range.clone())
7582 .collect::<String>()
7583 )
7584 }),
7585 HoverLink::InlayHint(_, _) => None,
7586 HoverLink::Url(_) => None,
7587 })
7588 .unwrap_or(tab_kind.to_string());
7589 let location_tasks = definitions
7590 .into_iter()
7591 .map(|definition| match definition {
7592 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7593 HoverLink::InlayHint(lsp_location, server_id) => {
7594 editor.compute_target_location(lsp_location, server_id, cx)
7595 }
7596 HoverLink::Url(_) => Task::ready(Ok(None)),
7597 })
7598 .collect::<Vec<_>>();
7599 (title, location_tasks, editor.workspace().clone())
7600 })
7601 .context("location tasks preparation")?;
7602
7603 let locations = futures::future::join_all(location_tasks)
7604 .await
7605 .into_iter()
7606 .filter_map(|location| location.transpose())
7607 .collect::<Result<_>>()
7608 .context("location tasks")?;
7609
7610 let Some(workspace) = workspace else {
7611 return Ok(());
7612 };
7613 workspace
7614 .update(&mut cx, |workspace, cx| {
7615 Self::open_locations_in_multibuffer(
7616 workspace, locations, replica_id, title, split, cx,
7617 )
7618 })
7619 .ok();
7620
7621 anyhow::Ok(())
7622 })
7623 .detach_and_log_err(cx);
7624 }
7625 }
7626
7627 fn compute_target_location(
7628 &self,
7629 lsp_location: lsp::Location,
7630 server_id: LanguageServerId,
7631 cx: &mut ViewContext<Editor>,
7632 ) -> Task<anyhow::Result<Option<Location>>> {
7633 let Some(project) = self.project.clone() else {
7634 return Task::Ready(Some(Ok(None)));
7635 };
7636
7637 cx.spawn(move |editor, mut cx| async move {
7638 let location_task = editor.update(&mut cx, |editor, cx| {
7639 project.update(cx, |project, cx| {
7640 let language_server_name =
7641 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7642 project
7643 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7644 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7645 });
7646 language_server_name.map(|language_server_name| {
7647 project.open_local_buffer_via_lsp(
7648 lsp_location.uri.clone(),
7649 server_id,
7650 language_server_name,
7651 cx,
7652 )
7653 })
7654 })
7655 })?;
7656 let location = match location_task {
7657 Some(task) => Some({
7658 let target_buffer_handle = task.await.context("open local buffer")?;
7659 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7660 let target_start = target_buffer
7661 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7662 let target_end = target_buffer
7663 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7664 target_buffer.anchor_after(target_start)
7665 ..target_buffer.anchor_before(target_end)
7666 })?;
7667 Location {
7668 buffer: target_buffer_handle,
7669 range,
7670 }
7671 }),
7672 None => None,
7673 };
7674 Ok(location)
7675 })
7676 }
7677
7678 pub fn find_all_references(
7679 &mut self,
7680 _: &FindAllReferences,
7681 cx: &mut ViewContext<Self>,
7682 ) -> Option<Task<Result<()>>> {
7683 let buffer = self.buffer.read(cx);
7684 let head = self.selections.newest::<usize>(cx).head();
7685 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7686 let replica_id = self.replica_id(cx);
7687
7688 let workspace = self.workspace()?;
7689 let project = workspace.read(cx).project().clone();
7690 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7691 Some(cx.spawn(|editor, mut cx| async move {
7692 let mut locations = references.await?;
7693 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7694 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7695
7696 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7697 // So we will remove it from locations
7698 // If there is only one reference, we will not do this filter cause it may make locations empty
7699 if locations.len() > 1 {
7700 cx.update(|cx| {
7701 locations.retain(|location| {
7702 // fn foo(x : i64) {
7703 // ^
7704 // println!(x);
7705 // }
7706 // It is ok to find reference when caret being at ^ (the end of the word)
7707 // So we turn offset into inclusive to include the end of the word
7708 !location
7709 .range
7710 .to_offset(location.buffer.read(cx))
7711 .to_inclusive()
7712 .contains(&head_offset)
7713 });
7714 })?;
7715 }
7716
7717 if locations.is_empty() {
7718 return Ok(());
7719 }
7720
7721 // If there is one reference, just open it directly
7722 if locations.len() == 1 {
7723 let target = locations.pop().unwrap();
7724
7725 return editor.update(&mut cx, |editor, cx| {
7726 let range = target.range.to_offset(target.buffer.read(cx));
7727 let range = editor.range_for_match(&range);
7728
7729 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7730 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7731 s.select_ranges([range]);
7732 });
7733 } else {
7734 cx.window_context().defer(move |cx| {
7735 let target_editor: View<Self> =
7736 workspace.update(cx, |workspace, cx| {
7737 workspace.open_project_item(
7738 workspace.active_pane().clone(),
7739 target.buffer.clone(),
7740 cx,
7741 )
7742 });
7743 target_editor.update(cx, |target_editor, cx| {
7744 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7745 s.select_ranges([range]);
7746 })
7747 })
7748 })
7749 }
7750 });
7751 }
7752
7753 workspace.update(&mut cx, |workspace, cx| {
7754 let title = locations
7755 .first()
7756 .as_ref()
7757 .map(|location| {
7758 let buffer = location.buffer.read(cx);
7759 format!(
7760 "References to `{}`",
7761 buffer
7762 .text_for_range(location.range.clone())
7763 .collect::<String>()
7764 )
7765 })
7766 .unwrap();
7767 Self::open_locations_in_multibuffer(
7768 workspace, locations, replica_id, title, false, cx,
7769 );
7770 })?;
7771
7772 Ok(())
7773 }))
7774 }
7775
7776 /// Opens a multibuffer with the given project locations in it
7777 pub fn open_locations_in_multibuffer(
7778 workspace: &mut Workspace,
7779 mut locations: Vec<Location>,
7780 replica_id: ReplicaId,
7781 title: String,
7782 split: bool,
7783 cx: &mut ViewContext<Workspace>,
7784 ) {
7785 // If there are multiple definitions, open them in a multibuffer
7786 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7787 let mut locations = locations.into_iter().peekable();
7788 let mut ranges_to_highlight = Vec::new();
7789 let capability = workspace.project().read(cx).capability();
7790
7791 let excerpt_buffer = cx.new_model(|cx| {
7792 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7793 while let Some(location) = locations.next() {
7794 let buffer = location.buffer.read(cx);
7795 let mut ranges_for_buffer = Vec::new();
7796 let range = location.range.to_offset(buffer);
7797 ranges_for_buffer.push(range.clone());
7798
7799 while let Some(next_location) = locations.peek() {
7800 if next_location.buffer == location.buffer {
7801 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7802 locations.next();
7803 } else {
7804 break;
7805 }
7806 }
7807
7808 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7809 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7810 location.buffer.clone(),
7811 ranges_for_buffer,
7812 1,
7813 cx,
7814 ))
7815 }
7816
7817 multibuffer.with_title(title)
7818 });
7819
7820 let editor = cx.new_view(|cx| {
7821 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7822 });
7823 editor.update(cx, |editor, cx| {
7824 editor.highlight_background::<Self>(
7825 ranges_to_highlight,
7826 |theme| theme.editor_highlighted_line_background,
7827 cx,
7828 );
7829 });
7830 if split {
7831 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7832 } else {
7833 workspace.add_item_to_active_pane(Box::new(editor), cx);
7834 }
7835 }
7836
7837 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7838 use language::ToOffset as _;
7839
7840 let project = self.project.clone()?;
7841 let selection = self.selections.newest_anchor().clone();
7842 let (cursor_buffer, cursor_buffer_position) = self
7843 .buffer
7844 .read(cx)
7845 .text_anchor_for_position(selection.head(), cx)?;
7846 let (tail_buffer, _) = self
7847 .buffer
7848 .read(cx)
7849 .text_anchor_for_position(selection.tail(), cx)?;
7850 if tail_buffer != cursor_buffer {
7851 return None;
7852 }
7853
7854 let snapshot = cursor_buffer.read(cx).snapshot();
7855 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7856 let prepare_rename = project.update(cx, |project, cx| {
7857 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
7858 });
7859 drop(snapshot);
7860
7861 Some(cx.spawn(|this, mut cx| async move {
7862 let rename_range = if let Some(range) = prepare_rename.await? {
7863 Some(range)
7864 } else {
7865 this.update(&mut cx, |this, cx| {
7866 let buffer = this.buffer.read(cx).snapshot(cx);
7867 let mut buffer_highlights = this
7868 .document_highlights_for_position(selection.head(), &buffer)
7869 .filter(|highlight| {
7870 highlight.start.excerpt_id == selection.head().excerpt_id
7871 && highlight.end.excerpt_id == selection.head().excerpt_id
7872 });
7873 buffer_highlights
7874 .next()
7875 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7876 })?
7877 };
7878 if let Some(rename_range) = rename_range {
7879 this.update(&mut cx, |this, cx| {
7880 let snapshot = cursor_buffer.read(cx).snapshot();
7881 let rename_buffer_range = rename_range.to_offset(&snapshot);
7882 let cursor_offset_in_rename_range =
7883 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7884
7885 this.take_rename(false, cx);
7886 let buffer = this.buffer.read(cx).read(cx);
7887 let cursor_offset = selection.head().to_offset(&buffer);
7888 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7889 let rename_end = rename_start + rename_buffer_range.len();
7890 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7891 let mut old_highlight_id = None;
7892 let old_name: Arc<str> = buffer
7893 .chunks(rename_start..rename_end, true)
7894 .map(|chunk| {
7895 if old_highlight_id.is_none() {
7896 old_highlight_id = chunk.syntax_highlight_id;
7897 }
7898 chunk.text
7899 })
7900 .collect::<String>()
7901 .into();
7902
7903 drop(buffer);
7904
7905 // Position the selection in the rename editor so that it matches the current selection.
7906 this.show_local_selections = false;
7907 let rename_editor = cx.new_view(|cx| {
7908 let mut editor = Editor::single_line(cx);
7909 editor.buffer.update(cx, |buffer, cx| {
7910 buffer.edit([(0..0, old_name.clone())], None, cx)
7911 });
7912 editor.select_all(&SelectAll, cx);
7913 editor
7914 });
7915
7916 let ranges = this
7917 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7918 .into_iter()
7919 .flat_map(|(_, ranges)| ranges.into_iter())
7920 .chain(
7921 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7922 .into_iter()
7923 .flat_map(|(_, ranges)| ranges.into_iter()),
7924 )
7925 .collect();
7926
7927 this.highlight_text::<Rename>(
7928 ranges,
7929 HighlightStyle {
7930 fade_out: Some(0.6),
7931 ..Default::default()
7932 },
7933 cx,
7934 );
7935 let rename_focus_handle = rename_editor.focus_handle(cx);
7936 cx.focus(&rename_focus_handle);
7937 let block_id = this.insert_blocks(
7938 [BlockProperties {
7939 style: BlockStyle::Flex,
7940 position: range.start,
7941 height: 1,
7942 render: Arc::new({
7943 let rename_editor = rename_editor.clone();
7944 move |cx: &mut BlockContext| {
7945 let mut text_style = cx.editor_style.text.clone();
7946 if let Some(highlight_style) = old_highlight_id
7947 .and_then(|h| h.style(&cx.editor_style.syntax))
7948 {
7949 text_style = text_style.highlight(highlight_style);
7950 }
7951 div()
7952 .pl(cx.anchor_x)
7953 .child(EditorElement::new(
7954 &rename_editor,
7955 EditorStyle {
7956 background: cx.theme().system().transparent,
7957 local_player: cx.editor_style.local_player,
7958 text: text_style,
7959 scrollbar_width: cx.editor_style.scrollbar_width,
7960 syntax: cx.editor_style.syntax.clone(),
7961 status: cx.editor_style.status.clone(),
7962 inlays_style: HighlightStyle {
7963 color: Some(cx.theme().status().hint),
7964 font_weight: Some(FontWeight::BOLD),
7965 ..HighlightStyle::default()
7966 },
7967 suggestions_style: HighlightStyle {
7968 color: Some(cx.theme().status().predictive),
7969 ..HighlightStyle::default()
7970 },
7971 },
7972 ))
7973 .into_any_element()
7974 }
7975 }),
7976 disposition: BlockDisposition::Below,
7977 }],
7978 Some(Autoscroll::fit()),
7979 cx,
7980 )[0];
7981 this.pending_rename = Some(RenameState {
7982 range,
7983 old_name,
7984 editor: rename_editor,
7985 block_id,
7986 });
7987 })?;
7988 }
7989
7990 Ok(())
7991 }))
7992 }
7993
7994 pub fn confirm_rename(
7995 &mut self,
7996 _: &ConfirmRename,
7997 cx: &mut ViewContext<Self>,
7998 ) -> Option<Task<Result<()>>> {
7999 let rename = self.take_rename(false, cx)?;
8000 let workspace = self.workspace()?;
8001 let (start_buffer, start) = self
8002 .buffer
8003 .read(cx)
8004 .text_anchor_for_position(rename.range.start, cx)?;
8005 let (end_buffer, end) = self
8006 .buffer
8007 .read(cx)
8008 .text_anchor_for_position(rename.range.end, cx)?;
8009 if start_buffer != end_buffer {
8010 return None;
8011 }
8012
8013 let buffer = start_buffer;
8014 let range = start..end;
8015 let old_name = rename.old_name;
8016 let new_name = rename.editor.read(cx).text(cx);
8017
8018 let rename = workspace
8019 .read(cx)
8020 .project()
8021 .clone()
8022 .update(cx, |project, cx| {
8023 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8024 });
8025 let workspace = workspace.downgrade();
8026
8027 Some(cx.spawn(|editor, mut cx| async move {
8028 let project_transaction = rename.await?;
8029 Self::open_project_transaction(
8030 &editor,
8031 workspace,
8032 project_transaction,
8033 format!("Rename: {} → {}", old_name, new_name),
8034 cx.clone(),
8035 )
8036 .await?;
8037
8038 editor.update(&mut cx, |editor, cx| {
8039 editor.refresh_document_highlights(cx);
8040 })?;
8041 Ok(())
8042 }))
8043 }
8044
8045 fn take_rename(
8046 &mut self,
8047 moving_cursor: bool,
8048 cx: &mut ViewContext<Self>,
8049 ) -> Option<RenameState> {
8050 let rename = self.pending_rename.take()?;
8051 if rename.editor.focus_handle(cx).is_focused(cx) {
8052 cx.focus(&self.focus_handle);
8053 }
8054
8055 self.remove_blocks(
8056 [rename.block_id].into_iter().collect(),
8057 Some(Autoscroll::fit()),
8058 cx,
8059 );
8060 self.clear_highlights::<Rename>(cx);
8061 self.show_local_selections = true;
8062
8063 if moving_cursor {
8064 let rename_editor = rename.editor.read(cx);
8065 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8066
8067 // Update the selection to match the position of the selection inside
8068 // the rename editor.
8069 let snapshot = self.buffer.read(cx).read(cx);
8070 let rename_range = rename.range.to_offset(&snapshot);
8071 let cursor_in_editor = snapshot
8072 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8073 .min(rename_range.end);
8074 drop(snapshot);
8075
8076 self.change_selections(None, cx, |s| {
8077 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8078 });
8079 } else {
8080 self.refresh_document_highlights(cx);
8081 }
8082
8083 Some(rename)
8084 }
8085
8086 pub fn pending_rename(&self) -> Option<&RenameState> {
8087 self.pending_rename.as_ref()
8088 }
8089
8090 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8091 let project = match &self.project {
8092 Some(project) => project.clone(),
8093 None => return None,
8094 };
8095
8096 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8097 }
8098
8099 fn perform_format(
8100 &mut self,
8101 project: Model<Project>,
8102 trigger: FormatTrigger,
8103 cx: &mut ViewContext<Self>,
8104 ) -> Task<Result<()>> {
8105 let buffer = self.buffer().clone();
8106 let buffers = buffer.read(cx).all_buffers();
8107
8108 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8109 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8110
8111 cx.spawn(|_, mut cx| async move {
8112 let transaction = futures::select_biased! {
8113 _ = timeout => {
8114 log::warn!("timed out waiting for formatting");
8115 None
8116 }
8117 transaction = format.log_err().fuse() => transaction,
8118 };
8119
8120 buffer
8121 .update(&mut cx, |buffer, cx| {
8122 if let Some(transaction) = transaction {
8123 if !buffer.is_singleton() {
8124 buffer.push_transaction(&transaction.0, cx);
8125 }
8126 }
8127
8128 cx.notify();
8129 })
8130 .ok();
8131
8132 Ok(())
8133 })
8134 }
8135
8136 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8137 if let Some(project) = self.project.clone() {
8138 self.buffer.update(cx, |multi_buffer, cx| {
8139 project.update(cx, |project, cx| {
8140 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8141 });
8142 })
8143 }
8144 }
8145
8146 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8147 cx.show_character_palette();
8148 }
8149
8150 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8151 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8152 let buffer = self.buffer.read(cx).snapshot(cx);
8153 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8154 let is_valid = buffer
8155 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8156 .any(|entry| {
8157 entry.diagnostic.is_primary
8158 && !entry.range.is_empty()
8159 && entry.range.start == primary_range_start
8160 && entry.diagnostic.message == active_diagnostics.primary_message
8161 });
8162
8163 if is_valid != active_diagnostics.is_valid {
8164 active_diagnostics.is_valid = is_valid;
8165 let mut new_styles = HashMap::default();
8166 for (block_id, diagnostic) in &active_diagnostics.blocks {
8167 new_styles.insert(
8168 *block_id,
8169 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8170 );
8171 }
8172 self.display_map
8173 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8174 }
8175 }
8176 }
8177
8178 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8179 self.dismiss_diagnostics(cx);
8180 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8181 let buffer = self.buffer.read(cx).snapshot(cx);
8182
8183 let mut primary_range = None;
8184 let mut primary_message = None;
8185 let mut group_end = Point::zero();
8186 let diagnostic_group = buffer
8187 .diagnostic_group::<Point>(group_id)
8188 .map(|entry| {
8189 if entry.range.end > group_end {
8190 group_end = entry.range.end;
8191 }
8192 if entry.diagnostic.is_primary {
8193 primary_range = Some(entry.range.clone());
8194 primary_message = Some(entry.diagnostic.message.clone());
8195 }
8196 entry
8197 })
8198 .collect::<Vec<_>>();
8199 let primary_range = primary_range?;
8200 let primary_message = primary_message?;
8201 let primary_range =
8202 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8203
8204 let blocks = display_map
8205 .insert_blocks(
8206 diagnostic_group.iter().map(|entry| {
8207 let diagnostic = entry.diagnostic.clone();
8208 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8209 BlockProperties {
8210 style: BlockStyle::Fixed,
8211 position: buffer.anchor_after(entry.range.start),
8212 height: message_height,
8213 render: diagnostic_block_renderer(diagnostic, true),
8214 disposition: BlockDisposition::Below,
8215 }
8216 }),
8217 cx,
8218 )
8219 .into_iter()
8220 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8221 .collect();
8222
8223 Some(ActiveDiagnosticGroup {
8224 primary_range,
8225 primary_message,
8226 blocks,
8227 is_valid: true,
8228 })
8229 });
8230 self.active_diagnostics.is_some()
8231 }
8232
8233 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8234 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8235 self.display_map.update(cx, |display_map, cx| {
8236 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8237 });
8238 cx.notify();
8239 }
8240 }
8241
8242 pub fn set_selections_from_remote(
8243 &mut self,
8244 selections: Vec<Selection<Anchor>>,
8245 pending_selection: Option<Selection<Anchor>>,
8246 cx: &mut ViewContext<Self>,
8247 ) {
8248 let old_cursor_position = self.selections.newest_anchor().head();
8249 self.selections.change_with(cx, |s| {
8250 s.select_anchors(selections);
8251 if let Some(pending_selection) = pending_selection {
8252 s.set_pending(pending_selection, SelectMode::Character);
8253 } else {
8254 s.clear_pending();
8255 }
8256 });
8257 self.selections_did_change(false, &old_cursor_position, cx);
8258 }
8259
8260 fn push_to_selection_history(&mut self) {
8261 self.selection_history.push(SelectionHistoryEntry {
8262 selections: self.selections.disjoint_anchors(),
8263 select_next_state: self.select_next_state.clone(),
8264 select_prev_state: self.select_prev_state.clone(),
8265 add_selections_state: self.add_selections_state.clone(),
8266 });
8267 }
8268
8269 pub fn transact(
8270 &mut self,
8271 cx: &mut ViewContext<Self>,
8272 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8273 ) -> Option<TransactionId> {
8274 self.start_transaction_at(Instant::now(), cx);
8275 update(self, cx);
8276 self.end_transaction_at(Instant::now(), cx)
8277 }
8278
8279 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8280 self.end_selection(cx);
8281 if let Some(tx_id) = self
8282 .buffer
8283 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8284 {
8285 self.selection_history
8286 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8287 }
8288 }
8289
8290 fn end_transaction_at(
8291 &mut self,
8292 now: Instant,
8293 cx: &mut ViewContext<Self>,
8294 ) -> Option<TransactionId> {
8295 if let Some(tx_id) = self
8296 .buffer
8297 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8298 {
8299 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8300 *end_selections = Some(self.selections.disjoint_anchors());
8301 } else {
8302 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8303 }
8304
8305 cx.emit(EditorEvent::Edited);
8306 Some(tx_id)
8307 } else {
8308 None
8309 }
8310 }
8311
8312 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8313 let mut fold_ranges = Vec::new();
8314
8315 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8316
8317 let selections = self.selections.all_adjusted(cx);
8318 for selection in selections {
8319 let range = selection.range().sorted();
8320 let buffer_start_row = range.start.row;
8321
8322 for row in (0..=range.end.row).rev() {
8323 let fold_range = display_map.foldable_range(row);
8324
8325 if let Some(fold_range) = fold_range {
8326 if fold_range.end.row >= buffer_start_row {
8327 fold_ranges.push(fold_range);
8328 if row <= range.start.row {
8329 break;
8330 }
8331 }
8332 }
8333 }
8334 }
8335
8336 self.fold_ranges(fold_ranges, true, cx);
8337 }
8338
8339 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8340 let buffer_row = fold_at.buffer_row;
8341 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8342
8343 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8344 let autoscroll = self
8345 .selections
8346 .all::<Point>(cx)
8347 .iter()
8348 .any(|selection| fold_range.overlaps(&selection.range()));
8349
8350 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8351 }
8352 }
8353
8354 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8355 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8356 let buffer = &display_map.buffer_snapshot;
8357 let selections = self.selections.all::<Point>(cx);
8358 let ranges = selections
8359 .iter()
8360 .map(|s| {
8361 let range = s.display_range(&display_map).sorted();
8362 let mut start = range.start.to_point(&display_map);
8363 let mut end = range.end.to_point(&display_map);
8364 start.column = 0;
8365 end.column = buffer.line_len(end.row);
8366 start..end
8367 })
8368 .collect::<Vec<_>>();
8369
8370 self.unfold_ranges(ranges, true, true, cx);
8371 }
8372
8373 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8374 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8375
8376 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8377 ..Point::new(
8378 unfold_at.buffer_row,
8379 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8380 );
8381
8382 let autoscroll = self
8383 .selections
8384 .all::<Point>(cx)
8385 .iter()
8386 .any(|selection| selection.range().overlaps(&intersection_range));
8387
8388 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8389 }
8390
8391 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8392 let selections = self.selections.all::<Point>(cx);
8393 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8394 let line_mode = self.selections.line_mode;
8395 let ranges = selections.into_iter().map(|s| {
8396 if line_mode {
8397 let start = Point::new(s.start.row, 0);
8398 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8399 start..end
8400 } else {
8401 s.start..s.end
8402 }
8403 });
8404 self.fold_ranges(ranges, true, cx);
8405 }
8406
8407 pub fn fold_ranges<T: ToOffset + Clone>(
8408 &mut self,
8409 ranges: impl IntoIterator<Item = Range<T>>,
8410 auto_scroll: bool,
8411 cx: &mut ViewContext<Self>,
8412 ) {
8413 let mut ranges = ranges.into_iter().peekable();
8414 if ranges.peek().is_some() {
8415 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8416
8417 if auto_scroll {
8418 self.request_autoscroll(Autoscroll::fit(), cx);
8419 }
8420
8421 cx.notify();
8422 }
8423 }
8424
8425 pub fn unfold_ranges<T: ToOffset + Clone>(
8426 &mut self,
8427 ranges: impl IntoIterator<Item = Range<T>>,
8428 inclusive: bool,
8429 auto_scroll: bool,
8430 cx: &mut ViewContext<Self>,
8431 ) {
8432 let mut ranges = ranges.into_iter().peekable();
8433 if ranges.peek().is_some() {
8434 self.display_map
8435 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8436 if auto_scroll {
8437 self.request_autoscroll(Autoscroll::fit(), cx);
8438 }
8439
8440 cx.notify();
8441 }
8442 }
8443
8444 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8445 if hovered != self.gutter_hovered {
8446 self.gutter_hovered = hovered;
8447 cx.notify();
8448 }
8449 }
8450
8451 pub fn insert_blocks(
8452 &mut self,
8453 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8454 autoscroll: Option<Autoscroll>,
8455 cx: &mut ViewContext<Self>,
8456 ) -> Vec<BlockId> {
8457 let blocks = self
8458 .display_map
8459 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8460 if let Some(autoscroll) = autoscroll {
8461 self.request_autoscroll(autoscroll, cx);
8462 }
8463 blocks
8464 }
8465
8466 pub fn replace_blocks(
8467 &mut self,
8468 blocks: HashMap<BlockId, RenderBlock>,
8469 autoscroll: Option<Autoscroll>,
8470 cx: &mut ViewContext<Self>,
8471 ) {
8472 self.display_map
8473 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8474 if let Some(autoscroll) = autoscroll {
8475 self.request_autoscroll(autoscroll, cx);
8476 }
8477 }
8478
8479 pub fn remove_blocks(
8480 &mut self,
8481 block_ids: HashSet<BlockId>,
8482 autoscroll: Option<Autoscroll>,
8483 cx: &mut ViewContext<Self>,
8484 ) {
8485 self.display_map.update(cx, |display_map, cx| {
8486 display_map.remove_blocks(block_ids, cx)
8487 });
8488 if let Some(autoscroll) = autoscroll {
8489 self.request_autoscroll(autoscroll, cx);
8490 }
8491 }
8492
8493 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8494 self.display_map
8495 .update(cx, |map, cx| map.snapshot(cx))
8496 .longest_row()
8497 }
8498
8499 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8500 self.display_map
8501 .update(cx, |map, cx| map.snapshot(cx))
8502 .max_point()
8503 }
8504
8505 pub fn text(&self, cx: &AppContext) -> String {
8506 self.buffer.read(cx).read(cx).text()
8507 }
8508
8509 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8510 let text = self.text(cx);
8511 let text = text.trim();
8512
8513 if text.is_empty() {
8514 return None;
8515 }
8516
8517 Some(text.to_string())
8518 }
8519
8520 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8521 self.transact(cx, |this, cx| {
8522 this.buffer
8523 .read(cx)
8524 .as_singleton()
8525 .expect("you can only call set_text on editors for singleton buffers")
8526 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8527 });
8528 }
8529
8530 pub fn display_text(&self, cx: &mut AppContext) -> String {
8531 self.display_map
8532 .update(cx, |map, cx| map.snapshot(cx))
8533 .text()
8534 }
8535
8536 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8537 let mut wrap_guides = smallvec::smallvec![];
8538
8539 if self.show_wrap_guides == Some(false) {
8540 return wrap_guides;
8541 }
8542
8543 let settings = self.buffer.read(cx).settings_at(0, cx);
8544 if settings.show_wrap_guides {
8545 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8546 wrap_guides.push((soft_wrap as usize, true));
8547 }
8548 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8549 }
8550
8551 wrap_guides
8552 }
8553
8554 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8555 let settings = self.buffer.read(cx).settings_at(0, cx);
8556 let mode = self
8557 .soft_wrap_mode_override
8558 .unwrap_or_else(|| settings.soft_wrap);
8559 match mode {
8560 language_settings::SoftWrap::None => SoftWrap::None,
8561 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8562 language_settings::SoftWrap::PreferredLineLength => {
8563 SoftWrap::Column(settings.preferred_line_length)
8564 }
8565 }
8566 }
8567
8568 pub fn set_soft_wrap_mode(
8569 &mut self,
8570 mode: language_settings::SoftWrap,
8571 cx: &mut ViewContext<Self>,
8572 ) {
8573 self.soft_wrap_mode_override = Some(mode);
8574 cx.notify();
8575 }
8576
8577 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8578 let rem_size = cx.rem_size();
8579 self.display_map.update(cx, |map, cx| {
8580 map.set_font(
8581 style.text.font(),
8582 style.text.font_size.to_pixels(rem_size),
8583 cx,
8584 )
8585 });
8586 self.style = Some(style);
8587 }
8588
8589 #[cfg(any(test, feature = "test-support"))]
8590 pub fn style(&self) -> Option<&EditorStyle> {
8591 self.style.as_ref()
8592 }
8593
8594 // Called by the element. This method is not designed to be called outside of the editor
8595 // element's layout code because it does not notify when rewrapping is computed synchronously.
8596 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8597 self.display_map
8598 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8599 }
8600
8601 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8602 if self.soft_wrap_mode_override.is_some() {
8603 self.soft_wrap_mode_override.take();
8604 } else {
8605 let soft_wrap = match self.soft_wrap_mode(cx) {
8606 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8607 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8608 };
8609 self.soft_wrap_mode_override = Some(soft_wrap);
8610 }
8611 cx.notify();
8612 }
8613
8614 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8615 let mut editor_settings = EditorSettings::get_global(cx).clone();
8616 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8617 EditorSettings::override_global(editor_settings, cx);
8618 }
8619
8620 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8621 self.show_gutter = show_gutter;
8622 cx.notify();
8623 }
8624
8625 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8626 self.show_wrap_guides = Some(show_gutter);
8627 cx.notify();
8628 }
8629
8630 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8631 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8632 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8633 cx.reveal_path(&file.abs_path(cx));
8634 }
8635 }
8636 }
8637
8638 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8639 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8640 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8641 if let Some(path) = file.abs_path(cx).to_str() {
8642 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8643 }
8644 }
8645 }
8646 }
8647
8648 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8649 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8650 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8651 if let Some(path) = file.path().to_str() {
8652 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8653 }
8654 }
8655 }
8656 }
8657
8658 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8659 use git::permalink::{build_permalink, BuildPermalinkParams};
8660
8661 let (path, repo) = maybe!({
8662 let project_handle = self.project.as_ref()?.clone();
8663 let project = project_handle.read(cx);
8664 let buffer = self.buffer().read(cx).as_singleton()?;
8665 let path = buffer
8666 .read(cx)
8667 .file()?
8668 .as_local()?
8669 .path()
8670 .to_str()?
8671 .to_string();
8672 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8673 Some((path, repo))
8674 })
8675 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8676
8677 const REMOTE_NAME: &str = "origin";
8678 let origin_url = repo
8679 .lock()
8680 .remote_url(REMOTE_NAME)
8681 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8682 let sha = repo
8683 .lock()
8684 .head_sha()
8685 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8686 let selections = self.selections.all::<Point>(cx);
8687 let selection = selections.iter().peekable().next();
8688
8689 build_permalink(BuildPermalinkParams {
8690 remote_url: &origin_url,
8691 sha: &sha,
8692 path: &path,
8693 selection: selection.map(|selection| selection.range()),
8694 })
8695 }
8696
8697 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8698 let permalink = self.get_permalink_to_line(cx);
8699
8700 match permalink {
8701 Ok(permalink) => {
8702 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8703 }
8704 Err(err) => {
8705 let message = format!("Failed to copy permalink: {err}");
8706
8707 Err::<(), anyhow::Error>(err).log_err();
8708
8709 if let Some(workspace) = self.workspace() {
8710 workspace.update(cx, |workspace, cx| {
8711 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8712 })
8713 }
8714 }
8715 }
8716 }
8717
8718 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8719 let permalink = self.get_permalink_to_line(cx);
8720
8721 match permalink {
8722 Ok(permalink) => {
8723 cx.open_url(&permalink.to_string());
8724 }
8725 Err(err) => {
8726 let message = format!("Failed to open permalink: {err}");
8727
8728 Err::<(), anyhow::Error>(err).log_err();
8729
8730 if let Some(workspace) = self.workspace() {
8731 workspace.update(cx, |workspace, cx| {
8732 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8733 })
8734 }
8735 }
8736 }
8737 }
8738
8739 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8740 self.highlighted_rows = rows;
8741 }
8742
8743 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8744 self.highlighted_rows.clone()
8745 }
8746
8747 pub fn highlight_background<T: 'static>(
8748 &mut self,
8749 ranges: Vec<Range<Anchor>>,
8750 color_fetcher: fn(&ThemeColors) -> Hsla,
8751 cx: &mut ViewContext<Self>,
8752 ) {
8753 let snapshot = self.snapshot(cx);
8754 // this is to try and catch a panic sooner
8755 for range in &ranges {
8756 snapshot
8757 .buffer_snapshot
8758 .summary_for_anchor::<usize>(&range.start);
8759 snapshot
8760 .buffer_snapshot
8761 .summary_for_anchor::<usize>(&range.end);
8762 }
8763
8764 self.background_highlights
8765 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8766 cx.notify();
8767 }
8768
8769 pub(crate) fn highlight_inlay_background<T: 'static>(
8770 &mut self,
8771 ranges: Vec<InlayHighlight>,
8772 color_fetcher: fn(&ThemeColors) -> Hsla,
8773 cx: &mut ViewContext<Self>,
8774 ) {
8775 // TODO: no actual highlights happen for inlays currently, find a way to do that
8776 self.inlay_background_highlights
8777 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8778 cx.notify();
8779 }
8780
8781 pub fn clear_background_highlights<T: 'static>(
8782 &mut self,
8783 cx: &mut ViewContext<Self>,
8784 ) -> Option<BackgroundHighlight> {
8785 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8786 let inlay_highlights = self
8787 .inlay_background_highlights
8788 .remove(&Some(TypeId::of::<T>()));
8789 if text_highlights.is_some() || inlay_highlights.is_some() {
8790 cx.notify();
8791 }
8792 text_highlights
8793 }
8794
8795 #[cfg(feature = "test-support")]
8796 pub fn all_text_background_highlights(
8797 &mut self,
8798 cx: &mut ViewContext<Self>,
8799 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8800 let snapshot = self.snapshot(cx);
8801 let buffer = &snapshot.buffer_snapshot;
8802 let start = buffer.anchor_before(0);
8803 let end = buffer.anchor_after(buffer.len());
8804 let theme = cx.theme().colors();
8805 self.background_highlights_in_range(start..end, &snapshot, theme)
8806 }
8807
8808 fn document_highlights_for_position<'a>(
8809 &'a self,
8810 position: Anchor,
8811 buffer: &'a MultiBufferSnapshot,
8812 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8813 let read_highlights = self
8814 .background_highlights
8815 .get(&TypeId::of::<DocumentHighlightRead>())
8816 .map(|h| &h.1);
8817 let write_highlights = self
8818 .background_highlights
8819 .get(&TypeId::of::<DocumentHighlightWrite>())
8820 .map(|h| &h.1);
8821 let left_position = position.bias_left(buffer);
8822 let right_position = position.bias_right(buffer);
8823 read_highlights
8824 .into_iter()
8825 .chain(write_highlights)
8826 .flat_map(move |ranges| {
8827 let start_ix = match ranges.binary_search_by(|probe| {
8828 let cmp = probe.end.cmp(&left_position, buffer);
8829 if cmp.is_ge() {
8830 Ordering::Greater
8831 } else {
8832 Ordering::Less
8833 }
8834 }) {
8835 Ok(i) | Err(i) => i,
8836 };
8837
8838 ranges[start_ix..]
8839 .iter()
8840 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8841 })
8842 }
8843
8844 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8845 self.background_highlights
8846 .get(&TypeId::of::<T>())
8847 .map_or(false, |(_, highlights)| !highlights.is_empty())
8848 }
8849
8850 pub fn background_highlights_in_range(
8851 &self,
8852 search_range: Range<Anchor>,
8853 display_snapshot: &DisplaySnapshot,
8854 theme: &ThemeColors,
8855 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8856 let mut results = Vec::new();
8857 for (color_fetcher, ranges) in self.background_highlights.values() {
8858 let color = color_fetcher(theme);
8859 let start_ix = match ranges.binary_search_by(|probe| {
8860 let cmp = probe
8861 .end
8862 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8863 if cmp.is_gt() {
8864 Ordering::Greater
8865 } else {
8866 Ordering::Less
8867 }
8868 }) {
8869 Ok(i) | Err(i) => i,
8870 };
8871 for range in &ranges[start_ix..] {
8872 if range
8873 .start
8874 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8875 .is_ge()
8876 {
8877 break;
8878 }
8879
8880 let start = range.start.to_display_point(&display_snapshot);
8881 let end = range.end.to_display_point(&display_snapshot);
8882 results.push((start..end, color))
8883 }
8884 }
8885 results
8886 }
8887
8888 pub fn background_highlight_row_ranges<T: 'static>(
8889 &self,
8890 search_range: Range<Anchor>,
8891 display_snapshot: &DisplaySnapshot,
8892 count: usize,
8893 ) -> Vec<RangeInclusive<DisplayPoint>> {
8894 let mut results = Vec::new();
8895 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8896 return vec![];
8897 };
8898
8899 let start_ix = match ranges.binary_search_by(|probe| {
8900 let cmp = probe
8901 .end
8902 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8903 if cmp.is_gt() {
8904 Ordering::Greater
8905 } else {
8906 Ordering::Less
8907 }
8908 }) {
8909 Ok(i) | Err(i) => i,
8910 };
8911 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8912 if let (Some(start_display), Some(end_display)) = (start, end) {
8913 results.push(
8914 start_display.to_display_point(display_snapshot)
8915 ..=end_display.to_display_point(display_snapshot),
8916 );
8917 }
8918 };
8919 let mut start_row: Option<Point> = None;
8920 let mut end_row: Option<Point> = None;
8921 if ranges.len() > count {
8922 return Vec::new();
8923 }
8924 for range in &ranges[start_ix..] {
8925 if range
8926 .start
8927 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8928 .is_ge()
8929 {
8930 break;
8931 }
8932 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8933 if let Some(current_row) = &end_row {
8934 if end.row == current_row.row {
8935 continue;
8936 }
8937 }
8938 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8939 if start_row.is_none() {
8940 assert_eq!(end_row, None);
8941 start_row = Some(start);
8942 end_row = Some(end);
8943 continue;
8944 }
8945 if let Some(current_end) = end_row.as_mut() {
8946 if start.row > current_end.row + 1 {
8947 push_region(start_row, end_row);
8948 start_row = Some(start);
8949 end_row = Some(end);
8950 } else {
8951 // Merge two hunks.
8952 *current_end = end;
8953 }
8954 } else {
8955 unreachable!();
8956 }
8957 }
8958 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8959 push_region(start_row, end_row);
8960 results
8961 }
8962
8963 /// Get the text ranges corresponding to the redaction query
8964 pub fn redacted_ranges(
8965 &self,
8966 search_range: Range<Anchor>,
8967 display_snapshot: &DisplaySnapshot,
8968 cx: &mut ViewContext<Self>,
8969 ) -> Vec<Range<DisplayPoint>> {
8970 display_snapshot
8971 .buffer_snapshot
8972 .redacted_ranges(search_range, |file| {
8973 if let Some(file) = file {
8974 file.is_private()
8975 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8976 .redact_private_values
8977 } else {
8978 false
8979 }
8980 })
8981 .map(|range| {
8982 range.start.to_display_point(display_snapshot)
8983 ..range.end.to_display_point(display_snapshot)
8984 })
8985 .collect()
8986 }
8987
8988 pub fn highlight_text<T: 'static>(
8989 &mut self,
8990 ranges: Vec<Range<Anchor>>,
8991 style: HighlightStyle,
8992 cx: &mut ViewContext<Self>,
8993 ) {
8994 self.display_map.update(cx, |map, _| {
8995 map.highlight_text(TypeId::of::<T>(), ranges, style)
8996 });
8997 cx.notify();
8998 }
8999
9000 pub(crate) fn highlight_inlays<T: 'static>(
9001 &mut self,
9002 highlights: Vec<InlayHighlight>,
9003 style: HighlightStyle,
9004 cx: &mut ViewContext<Self>,
9005 ) {
9006 self.display_map.update(cx, |map, _| {
9007 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9008 });
9009 cx.notify();
9010 }
9011
9012 pub fn text_highlights<'a, T: 'static>(
9013 &'a self,
9014 cx: &'a AppContext,
9015 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9016 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9017 }
9018
9019 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9020 let cleared = self
9021 .display_map
9022 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9023 if cleared {
9024 cx.notify();
9025 }
9026 }
9027
9028 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9029 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9030 && self.focus_handle.is_focused(cx)
9031 }
9032
9033 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9034 cx.notify();
9035 }
9036
9037 fn on_buffer_event(
9038 &mut self,
9039 multibuffer: Model<MultiBuffer>,
9040 event: &multi_buffer::Event,
9041 cx: &mut ViewContext<Self>,
9042 ) {
9043 match event {
9044 multi_buffer::Event::Edited {
9045 singleton_buffer_edited,
9046 } => {
9047 self.refresh_active_diagnostics(cx);
9048 self.refresh_code_actions(cx);
9049 if self.has_active_copilot_suggestion(cx) {
9050 self.update_visible_copilot_suggestion(cx);
9051 }
9052 cx.emit(EditorEvent::BufferEdited);
9053 cx.emit(SearchEvent::MatchesInvalidated);
9054
9055 if *singleton_buffer_edited {
9056 if let Some(project) = &self.project {
9057 let project = project.read(cx);
9058 let languages_affected = multibuffer
9059 .read(cx)
9060 .all_buffers()
9061 .into_iter()
9062 .filter_map(|buffer| {
9063 let buffer = buffer.read(cx);
9064 let language = buffer.language()?;
9065 if project.is_local()
9066 && project.language_servers_for_buffer(buffer, cx).count() == 0
9067 {
9068 None
9069 } else {
9070 Some(language)
9071 }
9072 })
9073 .cloned()
9074 .collect::<HashSet<_>>();
9075 if !languages_affected.is_empty() {
9076 self.refresh_inlay_hints(
9077 InlayHintRefreshReason::BufferEdited(languages_affected),
9078 cx,
9079 );
9080 }
9081 }
9082 }
9083
9084 let Some(project) = &self.project else { return };
9085 let telemetry = project.read(cx).client().telemetry().clone();
9086 telemetry.log_edit_event("editor");
9087 }
9088 multi_buffer::Event::ExcerptsAdded {
9089 buffer,
9090 predecessor,
9091 excerpts,
9092 } => {
9093 cx.emit(EditorEvent::ExcerptsAdded {
9094 buffer: buffer.clone(),
9095 predecessor: *predecessor,
9096 excerpts: excerpts.clone(),
9097 });
9098 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9099 }
9100 multi_buffer::Event::ExcerptsRemoved { ids } => {
9101 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9102 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9103 }
9104 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9105 multi_buffer::Event::LanguageChanged => {
9106 cx.emit(EditorEvent::Reparsed);
9107 cx.notify();
9108 }
9109 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9110 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9111 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9112 cx.emit(EditorEvent::TitleChanged)
9113 }
9114 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9115 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9116 multi_buffer::Event::DiagnosticsUpdated => {
9117 self.refresh_active_diagnostics(cx);
9118 }
9119 _ => {}
9120 };
9121 }
9122
9123 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9124 cx.notify();
9125 }
9126
9127 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9128 self.refresh_copilot_suggestions(true, cx);
9129 self.refresh_inlay_hints(
9130 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9131 self.selections.newest_anchor().head(),
9132 &self.buffer.read(cx).snapshot(cx),
9133 cx,
9134 )),
9135 cx,
9136 );
9137 let editor_settings = EditorSettings::get_global(cx);
9138 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9139 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9140 cx.notify();
9141 }
9142
9143 pub fn set_searchable(&mut self, searchable: bool) {
9144 self.searchable = searchable;
9145 }
9146
9147 pub fn searchable(&self) -> bool {
9148 self.searchable
9149 }
9150
9151 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9152 self.open_excerpts_common(true, cx)
9153 }
9154
9155 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9156 self.open_excerpts_common(false, cx)
9157 }
9158
9159 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9160 let buffer = self.buffer.read(cx);
9161 if buffer.is_singleton() {
9162 cx.propagate();
9163 return;
9164 }
9165
9166 let Some(workspace) = self.workspace() else {
9167 cx.propagate();
9168 return;
9169 };
9170
9171 let mut new_selections_by_buffer = HashMap::default();
9172 for selection in self.selections.all::<usize>(cx) {
9173 for (buffer, mut range, _) in
9174 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9175 {
9176 if selection.reversed {
9177 mem::swap(&mut range.start, &mut range.end);
9178 }
9179 new_selections_by_buffer
9180 .entry(buffer)
9181 .or_insert(Vec::new())
9182 .push(range)
9183 }
9184 }
9185
9186 // We defer the pane interaction because we ourselves are a workspace item
9187 // and activating a new item causes the pane to call a method on us reentrantly,
9188 // which panics if we're on the stack.
9189 cx.window_context().defer(move |cx| {
9190 workspace.update(cx, |workspace, cx| {
9191 let pane = if split {
9192 workspace.adjacent_pane(cx)
9193 } else {
9194 workspace.active_pane().clone()
9195 };
9196 pane.update(cx, |pane, _| pane.disable_history());
9197
9198 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9199 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9200 editor.update(cx, |editor, cx| {
9201 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9202 s.select_ranges(ranges);
9203 });
9204 });
9205 }
9206
9207 pane.update(cx, |pane, _| pane.enable_history());
9208 })
9209 });
9210 }
9211
9212 fn jump(
9213 &mut self,
9214 path: ProjectPath,
9215 position: Point,
9216 anchor: language::Anchor,
9217 cx: &mut ViewContext<Self>,
9218 ) {
9219 let workspace = self.workspace();
9220 cx.spawn(|_, mut cx| async move {
9221 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9222 let editor = workspace.update(&mut cx, |workspace, cx| {
9223 workspace.open_path(path, None, true, cx)
9224 })?;
9225 let editor = editor
9226 .await?
9227 .downcast::<Editor>()
9228 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9229 .downgrade();
9230 editor.update(&mut cx, |editor, cx| {
9231 let buffer = editor
9232 .buffer()
9233 .read(cx)
9234 .as_singleton()
9235 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9236 let buffer = buffer.read(cx);
9237 let cursor = if buffer.can_resolve(&anchor) {
9238 language::ToPoint::to_point(&anchor, buffer)
9239 } else {
9240 buffer.clip_point(position, Bias::Left)
9241 };
9242
9243 let nav_history = editor.nav_history.take();
9244 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9245 s.select_ranges([cursor..cursor]);
9246 });
9247 editor.nav_history = nav_history;
9248
9249 anyhow::Ok(())
9250 })??;
9251
9252 anyhow::Ok(())
9253 })
9254 .detach_and_log_err(cx);
9255 }
9256
9257 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9258 let snapshot = self.buffer.read(cx).read(cx);
9259 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9260 Some(
9261 ranges
9262 .iter()
9263 .map(move |range| {
9264 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9265 })
9266 .collect(),
9267 )
9268 }
9269
9270 fn selection_replacement_ranges(
9271 &self,
9272 range: Range<OffsetUtf16>,
9273 cx: &AppContext,
9274 ) -> Vec<Range<OffsetUtf16>> {
9275 let selections = self.selections.all::<OffsetUtf16>(cx);
9276 let newest_selection = selections
9277 .iter()
9278 .max_by_key(|selection| selection.id)
9279 .unwrap();
9280 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9281 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9282 let snapshot = self.buffer.read(cx).read(cx);
9283 selections
9284 .into_iter()
9285 .map(|mut selection| {
9286 selection.start.0 =
9287 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9288 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9289 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9290 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9291 })
9292 .collect()
9293 }
9294
9295 fn report_copilot_event(
9296 &self,
9297 suggestion_id: Option<String>,
9298 suggestion_accepted: bool,
9299 cx: &AppContext,
9300 ) {
9301 let Some(project) = &self.project else { return };
9302
9303 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9304 let file_extension = self
9305 .buffer
9306 .read(cx)
9307 .as_singleton()
9308 .and_then(|b| b.read(cx).file())
9309 .and_then(|file| Path::new(file.file_name(cx)).extension())
9310 .and_then(|e| e.to_str())
9311 .map(|a| a.to_string());
9312
9313 let telemetry = project.read(cx).client().telemetry().clone();
9314
9315 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9316 }
9317
9318 #[cfg(any(test, feature = "test-support"))]
9319 fn report_editor_event(
9320 &self,
9321 _operation: &'static str,
9322 _file_extension: Option<String>,
9323 _cx: &AppContext,
9324 ) {
9325 }
9326
9327 #[cfg(not(any(test, feature = "test-support")))]
9328 fn report_editor_event(
9329 &self,
9330 operation: &'static str,
9331 file_extension: Option<String>,
9332 cx: &AppContext,
9333 ) {
9334 let Some(project) = &self.project else { return };
9335
9336 // If None, we are in a file without an extension
9337 let file = self
9338 .buffer
9339 .read(cx)
9340 .as_singleton()
9341 .and_then(|b| b.read(cx).file());
9342 let file_extension = file_extension.or(file
9343 .as_ref()
9344 .and_then(|file| Path::new(file.file_name(cx)).extension())
9345 .and_then(|e| e.to_str())
9346 .map(|a| a.to_string()));
9347
9348 let vim_mode = cx
9349 .global::<SettingsStore>()
9350 .raw_user_settings()
9351 .get("vim_mode")
9352 == Some(&serde_json::Value::Bool(true));
9353 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9354 let copilot_enabled_for_language = self
9355 .buffer
9356 .read(cx)
9357 .settings_at(0, cx)
9358 .show_copilot_suggestions;
9359
9360 let telemetry = project.read(cx).client().telemetry().clone();
9361 telemetry.report_editor_event(
9362 file_extension,
9363 vim_mode,
9364 operation,
9365 copilot_enabled,
9366 copilot_enabled_for_language,
9367 )
9368 }
9369
9370 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9371 /// with each line being an array of {text, highlight} objects.
9372 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9373 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9374 return;
9375 };
9376
9377 #[derive(Serialize)]
9378 struct Chunk<'a> {
9379 text: String,
9380 highlight: Option<&'a str>,
9381 }
9382
9383 let snapshot = buffer.read(cx).snapshot();
9384 let range = self
9385 .selected_text_range(cx)
9386 .and_then(|selected_range| {
9387 if selected_range.is_empty() {
9388 None
9389 } else {
9390 Some(selected_range)
9391 }
9392 })
9393 .unwrap_or_else(|| 0..snapshot.len());
9394
9395 let chunks = snapshot.chunks(range, true);
9396 let mut lines = Vec::new();
9397 let mut line: VecDeque<Chunk> = VecDeque::new();
9398
9399 let Some(style) = self.style.as_ref() else {
9400 return;
9401 };
9402
9403 for chunk in chunks {
9404 let highlight = chunk
9405 .syntax_highlight_id
9406 .and_then(|id| id.name(&style.syntax));
9407 let mut chunk_lines = chunk.text.split('\n').peekable();
9408 while let Some(text) = chunk_lines.next() {
9409 let mut merged_with_last_token = false;
9410 if let Some(last_token) = line.back_mut() {
9411 if last_token.highlight == highlight {
9412 last_token.text.push_str(text);
9413 merged_with_last_token = true;
9414 }
9415 }
9416
9417 if !merged_with_last_token {
9418 line.push_back(Chunk {
9419 text: text.into(),
9420 highlight,
9421 });
9422 }
9423
9424 if chunk_lines.peek().is_some() {
9425 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9426 line.pop_front();
9427 }
9428 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9429 line.pop_back();
9430 }
9431
9432 lines.push(mem::take(&mut line));
9433 }
9434 }
9435 }
9436
9437 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9438 return;
9439 };
9440 cx.write_to_clipboard(ClipboardItem::new(lines));
9441 }
9442
9443 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9444 &self.inlay_hint_cache
9445 }
9446
9447 pub fn replay_insert_event(
9448 &mut self,
9449 text: &str,
9450 relative_utf16_range: Option<Range<isize>>,
9451 cx: &mut ViewContext<Self>,
9452 ) {
9453 if !self.input_enabled {
9454 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9455 return;
9456 }
9457 if let Some(relative_utf16_range) = relative_utf16_range {
9458 let selections = self.selections.all::<OffsetUtf16>(cx);
9459 self.change_selections(None, cx, |s| {
9460 let new_ranges = selections.into_iter().map(|range| {
9461 let start = OffsetUtf16(
9462 range
9463 .head()
9464 .0
9465 .saturating_add_signed(relative_utf16_range.start),
9466 );
9467 let end = OffsetUtf16(
9468 range
9469 .head()
9470 .0
9471 .saturating_add_signed(relative_utf16_range.end),
9472 );
9473 start..end
9474 });
9475 s.select_ranges(new_ranges);
9476 });
9477 }
9478
9479 self.handle_input(text, cx);
9480 }
9481
9482 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9483 let Some(project) = self.project.as_ref() else {
9484 return false;
9485 };
9486 let project = project.read(cx);
9487
9488 let mut supports = false;
9489 self.buffer().read(cx).for_each_buffer(|buffer| {
9490 if !supports {
9491 supports = project
9492 .language_servers_for_buffer(buffer.read(cx), cx)
9493 .any(
9494 |(_, server)| match server.capabilities().inlay_hint_provider {
9495 Some(lsp::OneOf::Left(enabled)) => enabled,
9496 Some(lsp::OneOf::Right(_)) => true,
9497 None => false,
9498 },
9499 )
9500 }
9501 });
9502 supports
9503 }
9504
9505 pub fn focus(&self, cx: &mut WindowContext) {
9506 cx.focus(&self.focus_handle)
9507 }
9508
9509 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9510 self.focus_handle.is_focused(cx)
9511 }
9512
9513 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9514 cx.emit(EditorEvent::Focused);
9515
9516 if let Some(rename) = self.pending_rename.as_ref() {
9517 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9518 cx.focus(&rename_editor_focus_handle);
9519 } else {
9520 self.blink_manager.update(cx, BlinkManager::enable);
9521 self.show_cursor_names(cx);
9522 self.buffer.update(cx, |buffer, cx| {
9523 buffer.finalize_last_transaction(cx);
9524 if self.leader_peer_id.is_none() {
9525 buffer.set_active_selections(
9526 &self.selections.disjoint_anchors(),
9527 self.selections.line_mode,
9528 self.cursor_shape,
9529 cx,
9530 );
9531 }
9532 });
9533 }
9534 }
9535
9536 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9537 self.blink_manager.update(cx, BlinkManager::disable);
9538 self.buffer
9539 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9540 self.hide_context_menu(cx);
9541 hide_hover(self, cx);
9542 cx.emit(EditorEvent::Blurred);
9543 cx.notify();
9544 }
9545
9546 pub fn register_action<A: Action>(
9547 &mut self,
9548 listener: impl Fn(&A, &mut WindowContext) + 'static,
9549 ) -> &mut Self {
9550 let listener = Arc::new(listener);
9551
9552 self.editor_actions.push(Box::new(move |cx| {
9553 let _view = cx.view().clone();
9554 let cx = cx.window_context();
9555 let listener = listener.clone();
9556 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9557 let action = action.downcast_ref().unwrap();
9558 if phase == DispatchPhase::Bubble {
9559 listener(action, cx)
9560 }
9561 })
9562 }));
9563 self
9564 }
9565}
9566
9567pub trait CollaborationHub {
9568 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9569 fn user_participant_indices<'a>(
9570 &self,
9571 cx: &'a AppContext,
9572 ) -> &'a HashMap<u64, ParticipantIndex>;
9573 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9574}
9575
9576impl CollaborationHub for Model<Project> {
9577 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9578 self.read(cx).collaborators()
9579 }
9580
9581 fn user_participant_indices<'a>(
9582 &self,
9583 cx: &'a AppContext,
9584 ) -> &'a HashMap<u64, ParticipantIndex> {
9585 self.read(cx).user_store().read(cx).participant_indices()
9586 }
9587
9588 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9589 let this = self.read(cx);
9590 let user_ids = this.collaborators().values().map(|c| c.user_id);
9591 this.user_store().read_with(cx, |user_store, cx| {
9592 user_store.participant_names(user_ids, cx)
9593 })
9594 }
9595}
9596
9597pub trait CompletionProvider {
9598 fn completions(
9599 &self,
9600 buffer: &Model<Buffer>,
9601 buffer_position: text::Anchor,
9602 cx: &mut ViewContext<Editor>,
9603 ) -> Task<Result<Vec<Completion>>>;
9604
9605 fn resolve_completions(
9606 &self,
9607 completion_indices: Vec<usize>,
9608 completions: Arc<RwLock<Box<[Completion]>>>,
9609 cx: &mut ViewContext<Editor>,
9610 ) -> Task<Result<bool>>;
9611
9612 fn apply_additional_edits_for_completion(
9613 &self,
9614 buffer: Model<Buffer>,
9615 completion: Completion,
9616 push_to_history: bool,
9617 cx: &mut ViewContext<Editor>,
9618 ) -> Task<Result<Option<language::Transaction>>>;
9619}
9620
9621impl CompletionProvider for Model<Project> {
9622 fn completions(
9623 &self,
9624 buffer: &Model<Buffer>,
9625 buffer_position: text::Anchor,
9626 cx: &mut ViewContext<Editor>,
9627 ) -> Task<Result<Vec<Completion>>> {
9628 self.update(cx, |project, cx| {
9629 project.completions(&buffer, buffer_position, cx)
9630 })
9631 }
9632
9633 fn resolve_completions(
9634 &self,
9635 completion_indices: Vec<usize>,
9636 completions: Arc<RwLock<Box<[Completion]>>>,
9637 cx: &mut ViewContext<Editor>,
9638 ) -> Task<Result<bool>> {
9639 self.update(cx, |project, cx| {
9640 project.resolve_completions(completion_indices, completions, cx)
9641 })
9642 }
9643
9644 fn apply_additional_edits_for_completion(
9645 &self,
9646 buffer: Model<Buffer>,
9647 completion: Completion,
9648 push_to_history: bool,
9649 cx: &mut ViewContext<Editor>,
9650 ) -> Task<Result<Option<language::Transaction>>> {
9651 self.update(cx, |project, cx| {
9652 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9653 })
9654 }
9655}
9656
9657fn inlay_hint_settings(
9658 location: Anchor,
9659 snapshot: &MultiBufferSnapshot,
9660 cx: &mut ViewContext<'_, Editor>,
9661) -> InlayHintSettings {
9662 let file = snapshot.file_at(location);
9663 let language = snapshot.language_at(location);
9664 let settings = all_language_settings(file, cx);
9665 settings
9666 .language(language.map(|l| l.name()).as_deref())
9667 .inlay_hints
9668}
9669
9670fn consume_contiguous_rows(
9671 contiguous_row_selections: &mut Vec<Selection<Point>>,
9672 selection: &Selection<Point>,
9673 display_map: &DisplaySnapshot,
9674 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9675) -> (u32, u32) {
9676 contiguous_row_selections.push(selection.clone());
9677 let start_row = selection.start.row;
9678 let mut end_row = ending_row(selection, display_map);
9679
9680 while let Some(next_selection) = selections.peek() {
9681 if next_selection.start.row <= end_row {
9682 end_row = ending_row(next_selection, display_map);
9683 contiguous_row_selections.push(selections.next().unwrap().clone());
9684 } else {
9685 break;
9686 }
9687 }
9688 (start_row, end_row)
9689}
9690
9691fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9692 if next_selection.end.column > 0 || next_selection.is_empty() {
9693 display_map.next_line_boundary(next_selection.end).0.row + 1
9694 } else {
9695 next_selection.end.row
9696 }
9697}
9698
9699impl EditorSnapshot {
9700 pub fn remote_selections_in_range<'a>(
9701 &'a self,
9702 range: &'a Range<Anchor>,
9703 collaboration_hub: &dyn CollaborationHub,
9704 cx: &'a AppContext,
9705 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9706 let participant_names = collaboration_hub.user_names(cx);
9707 let participant_indices = collaboration_hub.user_participant_indices(cx);
9708 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9709 let collaborators_by_replica_id = collaborators_by_peer_id
9710 .iter()
9711 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9712 .collect::<HashMap<_, _>>();
9713 self.buffer_snapshot
9714 .remote_selections_in_range(range)
9715 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9716 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9717 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9718 let user_name = participant_names.get(&collaborator.user_id).cloned();
9719 Some(RemoteSelection {
9720 replica_id,
9721 selection,
9722 cursor_shape,
9723 line_mode,
9724 participant_index,
9725 peer_id: collaborator.peer_id,
9726 user_name,
9727 })
9728 })
9729 }
9730
9731 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9732 self.display_snapshot.buffer_snapshot.language_at(position)
9733 }
9734
9735 pub fn is_focused(&self) -> bool {
9736 self.is_focused
9737 }
9738
9739 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&Arc<str>> {
9740 self.placeholder_text.as_ref()
9741 }
9742
9743 pub fn scroll_position(&self) -> gpui::Point<f32> {
9744 self.scroll_anchor.scroll_position(&self.display_snapshot)
9745 }
9746
9747 pub fn gutter_dimensions(
9748 &self,
9749 font_id: FontId,
9750 font_size: Pixels,
9751 em_width: Pixels,
9752 max_line_number_width: Pixels,
9753 cx: &AppContext,
9754 ) -> GutterDimensions {
9755 if !self.show_gutter {
9756 return GutterDimensions::default();
9757 }
9758 let descent = cx.text_system().descent(font_id, font_size);
9759
9760 let show_git_gutter = matches!(
9761 ProjectSettings::get_global(cx).git.git_gutter,
9762 Some(GitGutterSetting::TrackedFiles)
9763 );
9764 let gutter_settings = EditorSettings::get_global(cx).gutter;
9765
9766 let line_gutter_width = if gutter_settings.line_numbers {
9767 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9768 let min_width_for_number_on_gutter = em_width * 4.0;
9769 max_line_number_width.max(min_width_for_number_on_gutter)
9770 } else {
9771 0.0.into()
9772 };
9773
9774 let left_padding = if gutter_settings.code_actions {
9775 em_width * 3.0
9776 } else if show_git_gutter && gutter_settings.line_numbers {
9777 em_width * 2.0
9778 } else if show_git_gutter || gutter_settings.line_numbers {
9779 em_width
9780 } else {
9781 px(0.)
9782 };
9783
9784 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9785 em_width * 4.0
9786 } else if gutter_settings.folds {
9787 em_width * 3.0
9788 } else if gutter_settings.line_numbers {
9789 em_width
9790 } else {
9791 px(0.)
9792 };
9793
9794 GutterDimensions {
9795 left_padding,
9796 right_padding,
9797 width: line_gutter_width + left_padding + right_padding,
9798 margin: -descent,
9799 }
9800 }
9801}
9802
9803impl Deref for EditorSnapshot {
9804 type Target = DisplaySnapshot;
9805
9806 fn deref(&self) -> &Self::Target {
9807 &self.display_snapshot
9808 }
9809}
9810
9811#[derive(Clone, Debug, PartialEq, Eq)]
9812pub enum EditorEvent {
9813 InputIgnored {
9814 text: Arc<str>,
9815 },
9816 InputHandled {
9817 utf16_range_to_replace: Option<Range<isize>>,
9818 text: Arc<str>,
9819 },
9820 ExcerptsAdded {
9821 buffer: Model<Buffer>,
9822 predecessor: ExcerptId,
9823 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9824 },
9825 ExcerptsRemoved {
9826 ids: Vec<ExcerptId>,
9827 },
9828 BufferEdited,
9829 Edited,
9830 Reparsed,
9831 Focused,
9832 Blurred,
9833 DirtyChanged,
9834 Saved,
9835 TitleChanged,
9836 DiffBaseChanged,
9837 SelectionsChanged {
9838 local: bool,
9839 },
9840 ScrollPositionChanged {
9841 local: bool,
9842 autoscroll: bool,
9843 },
9844 Closed,
9845}
9846
9847impl EventEmitter<EditorEvent> for Editor {}
9848
9849impl FocusableView for Editor {
9850 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9851 self.focus_handle.clone()
9852 }
9853}
9854
9855impl Render for Editor {
9856 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9857 let settings = ThemeSettings::get_global(cx);
9858 let text_style = match self.mode {
9859 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9860 color: cx.theme().colors().editor_foreground,
9861 font_family: settings.ui_font.family.clone(),
9862 font_features: settings.ui_font.features,
9863 font_size: rems(0.875).into(),
9864 font_weight: FontWeight::NORMAL,
9865 font_style: FontStyle::Normal,
9866 line_height: relative(settings.buffer_line_height.value()),
9867 background_color: None,
9868 underline: None,
9869 strikethrough: None,
9870 white_space: WhiteSpace::Normal,
9871 },
9872
9873 EditorMode::Full => TextStyle {
9874 color: cx.theme().colors().editor_foreground,
9875 font_family: settings.buffer_font.family.clone(),
9876 font_features: settings.buffer_font.features,
9877 font_size: settings.buffer_font_size(cx).into(),
9878 font_weight: FontWeight::NORMAL,
9879 font_style: FontStyle::Normal,
9880 line_height: relative(settings.buffer_line_height.value()),
9881 background_color: None,
9882 underline: None,
9883 strikethrough: None,
9884 white_space: WhiteSpace::Normal,
9885 },
9886 };
9887
9888 let background = match self.mode {
9889 EditorMode::SingleLine => cx.theme().system().transparent,
9890 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9891 EditorMode::Full => cx.theme().colors().editor_background,
9892 };
9893
9894 EditorElement::new(
9895 cx.view(),
9896 EditorStyle {
9897 background,
9898 local_player: cx.theme().players().local(),
9899 text: text_style,
9900 scrollbar_width: px(12.),
9901 syntax: cx.theme().syntax().clone(),
9902 status: cx.theme().status().clone(),
9903 inlays_style: HighlightStyle {
9904 color: Some(cx.theme().status().hint),
9905 ..HighlightStyle::default()
9906 },
9907 suggestions_style: HighlightStyle {
9908 color: Some(cx.theme().status().predictive),
9909 ..HighlightStyle::default()
9910 },
9911 },
9912 )
9913 }
9914}
9915
9916impl ViewInputHandler for Editor {
9917 fn text_for_range(
9918 &mut self,
9919 range_utf16: Range<usize>,
9920 cx: &mut ViewContext<Self>,
9921 ) -> Option<String> {
9922 Some(
9923 self.buffer
9924 .read(cx)
9925 .read(cx)
9926 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9927 .collect(),
9928 )
9929 }
9930
9931 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9932 // Prevent the IME menu from appearing when holding down an alphabetic key
9933 // while input is disabled.
9934 if !self.input_enabled {
9935 return None;
9936 }
9937
9938 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9939 Some(range.start.0..range.end.0)
9940 }
9941
9942 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9943 let snapshot = self.buffer.read(cx).read(cx);
9944 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9945 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9946 }
9947
9948 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9949 self.clear_highlights::<InputComposition>(cx);
9950 self.ime_transaction.take();
9951 }
9952
9953 fn replace_text_in_range(
9954 &mut self,
9955 range_utf16: Option<Range<usize>>,
9956 text: &str,
9957 cx: &mut ViewContext<Self>,
9958 ) {
9959 if !self.input_enabled {
9960 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9961 return;
9962 }
9963
9964 self.transact(cx, |this, cx| {
9965 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9966 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9967 Some(this.selection_replacement_ranges(range_utf16, cx))
9968 } else {
9969 this.marked_text_ranges(cx)
9970 };
9971
9972 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9973 let newest_selection_id = this.selections.newest_anchor().id;
9974 this.selections
9975 .all::<OffsetUtf16>(cx)
9976 .iter()
9977 .zip(ranges_to_replace.iter())
9978 .find_map(|(selection, range)| {
9979 if selection.id == newest_selection_id {
9980 Some(
9981 (range.start.0 as isize - selection.head().0 as isize)
9982 ..(range.end.0 as isize - selection.head().0 as isize),
9983 )
9984 } else {
9985 None
9986 }
9987 })
9988 });
9989
9990 cx.emit(EditorEvent::InputHandled {
9991 utf16_range_to_replace: range_to_replace,
9992 text: text.into(),
9993 });
9994
9995 if let Some(new_selected_ranges) = new_selected_ranges {
9996 this.change_selections(None, cx, |selections| {
9997 selections.select_ranges(new_selected_ranges)
9998 });
9999 this.backspace(&Default::default(), cx);
10000 }
10001
10002 this.handle_input(text, cx);
10003 });
10004
10005 if let Some(transaction) = self.ime_transaction {
10006 self.buffer.update(cx, |buffer, cx| {
10007 buffer.group_until_transaction(transaction, cx);
10008 });
10009 }
10010
10011 self.unmark_text(cx);
10012 }
10013
10014 fn replace_and_mark_text_in_range(
10015 &mut self,
10016 range_utf16: Option<Range<usize>>,
10017 text: &str,
10018 new_selected_range_utf16: Option<Range<usize>>,
10019 cx: &mut ViewContext<Self>,
10020 ) {
10021 if !self.input_enabled {
10022 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10023 return;
10024 }
10025
10026 let transaction = self.transact(cx, |this, cx| {
10027 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10028 let snapshot = this.buffer.read(cx).read(cx);
10029 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10030 for marked_range in &mut marked_ranges {
10031 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10032 marked_range.start.0 += relative_range_utf16.start;
10033 marked_range.start =
10034 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10035 marked_range.end =
10036 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10037 }
10038 }
10039 Some(marked_ranges)
10040 } else if let Some(range_utf16) = range_utf16 {
10041 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10042 Some(this.selection_replacement_ranges(range_utf16, cx))
10043 } else {
10044 None
10045 };
10046
10047 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10048 let newest_selection_id = this.selections.newest_anchor().id;
10049 this.selections
10050 .all::<OffsetUtf16>(cx)
10051 .iter()
10052 .zip(ranges_to_replace.iter())
10053 .find_map(|(selection, range)| {
10054 if selection.id == newest_selection_id {
10055 Some(
10056 (range.start.0 as isize - selection.head().0 as isize)
10057 ..(range.end.0 as isize - selection.head().0 as isize),
10058 )
10059 } else {
10060 None
10061 }
10062 })
10063 });
10064
10065 cx.emit(EditorEvent::InputHandled {
10066 utf16_range_to_replace: range_to_replace,
10067 text: text.into(),
10068 });
10069
10070 if let Some(ranges) = ranges_to_replace {
10071 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10072 }
10073
10074 let marked_ranges = {
10075 let snapshot = this.buffer.read(cx).read(cx);
10076 this.selections
10077 .disjoint_anchors()
10078 .iter()
10079 .map(|selection| {
10080 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10081 })
10082 .collect::<Vec<_>>()
10083 };
10084
10085 if text.is_empty() {
10086 this.unmark_text(cx);
10087 } else {
10088 this.highlight_text::<InputComposition>(
10089 marked_ranges.clone(),
10090 HighlightStyle {
10091 underline: Some(UnderlineStyle {
10092 thickness: px(1.),
10093 color: None,
10094 wavy: false,
10095 }),
10096 ..Default::default()
10097 },
10098 cx,
10099 );
10100 }
10101
10102 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10103 let use_autoclose = this.use_autoclose;
10104 this.set_use_autoclose(false);
10105 this.handle_input(text, cx);
10106 this.set_use_autoclose(use_autoclose);
10107
10108 if let Some(new_selected_range) = new_selected_range_utf16 {
10109 let snapshot = this.buffer.read(cx).read(cx);
10110 let new_selected_ranges = marked_ranges
10111 .into_iter()
10112 .map(|marked_range| {
10113 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10114 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10115 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10116 snapshot.clip_offset_utf16(new_start, Bias::Left)
10117 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10118 })
10119 .collect::<Vec<_>>();
10120
10121 drop(snapshot);
10122 this.change_selections(None, cx, |selections| {
10123 selections.select_ranges(new_selected_ranges)
10124 });
10125 }
10126 });
10127
10128 self.ime_transaction = self.ime_transaction.or(transaction);
10129 if let Some(transaction) = self.ime_transaction {
10130 self.buffer.update(cx, |buffer, cx| {
10131 buffer.group_until_transaction(transaction, cx);
10132 });
10133 }
10134
10135 if self.text_highlights::<InputComposition>(cx).is_none() {
10136 self.ime_transaction.take();
10137 }
10138 }
10139
10140 fn bounds_for_range(
10141 &mut self,
10142 range_utf16: Range<usize>,
10143 element_bounds: gpui::Bounds<Pixels>,
10144 cx: &mut ViewContext<Self>,
10145 ) -> Option<gpui::Bounds<Pixels>> {
10146 let text_layout_details = self.text_layout_details(cx);
10147 let style = &text_layout_details.editor_style;
10148 let font_id = cx.text_system().resolve_font(&style.text.font());
10149 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10150 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10151 let em_width = cx
10152 .text_system()
10153 .typographic_bounds(font_id, font_size, 'm')
10154 .unwrap()
10155 .size
10156 .width;
10157
10158 let snapshot = self.snapshot(cx);
10159 let scroll_position = snapshot.scroll_position();
10160 let scroll_left = scroll_position.x * em_width;
10161
10162 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10163 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10164 + self.gutter_width;
10165 let y = line_height * (start.row() as f32 - scroll_position.y);
10166
10167 Some(Bounds {
10168 origin: element_bounds.origin + point(x, y),
10169 size: size(em_width, line_height),
10170 })
10171 }
10172}
10173
10174trait SelectionExt {
10175 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10176 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10177 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10178 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10179 -> Range<u32>;
10180}
10181
10182impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10183 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10184 let start = self.start.to_point(buffer);
10185 let end = self.end.to_point(buffer);
10186 if self.reversed {
10187 end..start
10188 } else {
10189 start..end
10190 }
10191 }
10192
10193 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10194 let start = self.start.to_offset(buffer);
10195 let end = self.end.to_offset(buffer);
10196 if self.reversed {
10197 end..start
10198 } else {
10199 start..end
10200 }
10201 }
10202
10203 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10204 let start = self
10205 .start
10206 .to_point(&map.buffer_snapshot)
10207 .to_display_point(map);
10208 let end = self
10209 .end
10210 .to_point(&map.buffer_snapshot)
10211 .to_display_point(map);
10212 if self.reversed {
10213 end..start
10214 } else {
10215 start..end
10216 }
10217 }
10218
10219 fn spanned_rows(
10220 &self,
10221 include_end_if_at_line_start: bool,
10222 map: &DisplaySnapshot,
10223 ) -> Range<u32> {
10224 let start = self.start.to_point(&map.buffer_snapshot);
10225 let mut end = self.end.to_point(&map.buffer_snapshot);
10226 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10227 end.row -= 1;
10228 }
10229
10230 let buffer_start = map.prev_line_boundary(start).0;
10231 let buffer_end = map.next_line_boundary(end).0;
10232 buffer_start.row..buffer_end.row + 1
10233 }
10234}
10235
10236impl<T: InvalidationRegion> InvalidationStack<T> {
10237 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10238 where
10239 S: Clone + ToOffset,
10240 {
10241 while let Some(region) = self.last() {
10242 let all_selections_inside_invalidation_ranges =
10243 if selections.len() == region.ranges().len() {
10244 selections
10245 .iter()
10246 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10247 .all(|(selection, invalidation_range)| {
10248 let head = selection.head().to_offset(buffer);
10249 invalidation_range.start <= head && invalidation_range.end >= head
10250 })
10251 } else {
10252 false
10253 };
10254
10255 if all_selections_inside_invalidation_ranges {
10256 break;
10257 } else {
10258 self.pop();
10259 }
10260 }
10261 }
10262}
10263
10264impl<T> Default for InvalidationStack<T> {
10265 fn default() -> Self {
10266 Self(Default::default())
10267 }
10268}
10269
10270impl<T> Deref for InvalidationStack<T> {
10271 type Target = Vec<T>;
10272
10273 fn deref(&self) -> &Self::Target {
10274 &self.0
10275 }
10276}
10277
10278impl<T> DerefMut for InvalidationStack<T> {
10279 fn deref_mut(&mut self) -> &mut Self::Target {
10280 &mut self.0
10281 }
10282}
10283
10284impl InvalidationRegion for SnippetState {
10285 fn ranges(&self) -> &[Range<Anchor>] {
10286 &self.ranges[self.active_index]
10287 }
10288}
10289
10290pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10291 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10292
10293 Arc::new(move |cx: &mut BlockContext| {
10294 let group_id: SharedString = cx.block_id.to_string().into();
10295
10296 let mut text_style = cx.text_style().clone();
10297 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10298
10299 h_flex()
10300 .id(cx.block_id)
10301 .group(group_id.clone())
10302 .relative()
10303 .size_full()
10304 .pl(cx.gutter_dimensions.width)
10305 .w(cx.max_width + cx.gutter_dimensions.width)
10306 .child(
10307 div()
10308 .flex()
10309 .w(cx.anchor_x - cx.gutter_dimensions.width)
10310 .flex_shrink(),
10311 )
10312 .child(div().flex().flex_shrink_0().child(
10313 StyledText::new(text_without_backticks.clone()).with_highlights(
10314 &text_style,
10315 code_ranges.iter().map(|range| {
10316 (
10317 range.clone(),
10318 HighlightStyle {
10319 font_weight: Some(FontWeight::BOLD),
10320 ..Default::default()
10321 },
10322 )
10323 }),
10324 ),
10325 ))
10326 .child(
10327 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10328 .icon_color(Color::Muted)
10329 .size(ButtonSize::Compact)
10330 .style(ButtonStyle::Transparent)
10331 .visible_on_hover(group_id)
10332 .on_click({
10333 let message = diagnostic.message.clone();
10334 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10335 })
10336 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10337 )
10338 .into_any_element()
10339 })
10340}
10341
10342pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10343 let mut text_without_backticks = String::new();
10344 let mut code_ranges = Vec::new();
10345
10346 if let Some(source) = &diagnostic.source {
10347 text_without_backticks.push_str(&source);
10348 code_ranges.push(0..source.len());
10349 text_without_backticks.push_str(": ");
10350 }
10351
10352 let mut prev_offset = 0;
10353 let mut in_code_block = false;
10354 for (ix, _) in diagnostic
10355 .message
10356 .match_indices('`')
10357 .chain([(diagnostic.message.len(), "")])
10358 {
10359 let prev_len = text_without_backticks.len();
10360 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10361 prev_offset = ix + 1;
10362 if in_code_block {
10363 code_ranges.push(prev_len..text_without_backticks.len());
10364 in_code_block = false;
10365 } else {
10366 in_code_block = true;
10367 }
10368 }
10369
10370 (text_without_backticks.into(), code_ranges)
10371}
10372
10373fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10374 match (severity, valid) {
10375 (DiagnosticSeverity::ERROR, true) => colors.error,
10376 (DiagnosticSeverity::ERROR, false) => colors.error,
10377 (DiagnosticSeverity::WARNING, true) => colors.warning,
10378 (DiagnosticSeverity::WARNING, false) => colors.warning,
10379 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10380 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10381 (DiagnosticSeverity::HINT, true) => colors.info,
10382 (DiagnosticSeverity::HINT, false) => colors.info,
10383 _ => colors.ignored,
10384 }
10385}
10386
10387pub fn styled_runs_for_code_label<'a>(
10388 label: &'a CodeLabel,
10389 syntax_theme: &'a theme::SyntaxTheme,
10390) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10391 let fade_out = HighlightStyle {
10392 fade_out: Some(0.35),
10393 ..Default::default()
10394 };
10395
10396 let mut prev_end = label.filter_range.end;
10397 label
10398 .runs
10399 .iter()
10400 .enumerate()
10401 .flat_map(move |(ix, (range, highlight_id))| {
10402 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10403 style
10404 } else {
10405 return Default::default();
10406 };
10407 let mut muted_style = style;
10408 muted_style.highlight(fade_out);
10409
10410 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10411 if range.start >= label.filter_range.end {
10412 if range.start > prev_end {
10413 runs.push((prev_end..range.start, fade_out));
10414 }
10415 runs.push((range.clone(), muted_style));
10416 } else if range.end <= label.filter_range.end {
10417 runs.push((range.clone(), style));
10418 } else {
10419 runs.push((range.start..label.filter_range.end, style));
10420 runs.push((label.filter_range.end..range.end, muted_style));
10421 }
10422 prev_end = cmp::max(prev_end, range.end);
10423
10424 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10425 runs.push((prev_end..label.text.len(), fade_out));
10426 }
10427
10428 runs
10429 })
10430}
10431
10432pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10433 let mut index = 0;
10434 let mut codepoints = text.char_indices().peekable();
10435
10436 std::iter::from_fn(move || {
10437 let start_index = index;
10438 while let Some((new_index, codepoint)) = codepoints.next() {
10439 index = new_index + codepoint.len_utf8();
10440 let current_upper = codepoint.is_uppercase();
10441 let next_upper = codepoints
10442 .peek()
10443 .map(|(_, c)| c.is_uppercase())
10444 .unwrap_or(false);
10445
10446 if !current_upper && next_upper {
10447 return Some(&text[start_index..index]);
10448 }
10449 }
10450
10451 index = text.len();
10452 if start_index < text.len() {
10453 return Some(&text[start_index..]);
10454 }
10455 None
10456 })
10457 .flat_map(|word| word.split_inclusive('_'))
10458 .flat_map(|word| word.split_inclusive('-'))
10459}
10460
10461trait RangeToAnchorExt {
10462 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10463}
10464
10465impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10466 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10467 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10468 }
10469}