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, DiffHunkStatus};
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 auto_replace_emoji_shortcode: bool,
429 custom_context_menu: Option<
430 Box<
431 dyn 'static
432 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
433 >,
434 >,
435}
436
437pub struct EditorSnapshot {
438 pub mode: EditorMode,
439 show_gutter: bool,
440 pub display_snapshot: DisplaySnapshot,
441 pub placeholder_text: Option<Arc<str>>,
442 is_focused: bool,
443 scroll_anchor: ScrollAnchor,
444 ongoing_scroll: OngoingScroll,
445}
446
447pub struct GutterDimensions {
448 pub left_padding: Pixels,
449 pub right_padding: Pixels,
450 pub width: Pixels,
451 pub margin: Pixels,
452}
453
454impl Default for GutterDimensions {
455 fn default() -> Self {
456 Self {
457 left_padding: Pixels::ZERO,
458 right_padding: Pixels::ZERO,
459 width: Pixels::ZERO,
460 margin: Pixels::ZERO,
461 }
462 }
463}
464
465#[derive(Debug)]
466pub struct RemoteSelection {
467 pub replica_id: ReplicaId,
468 pub selection: Selection<Anchor>,
469 pub cursor_shape: CursorShape,
470 pub peer_id: PeerId,
471 pub line_mode: bool,
472 pub participant_index: Option<ParticipantIndex>,
473 pub user_name: Option<SharedString>,
474}
475
476#[derive(Clone, Debug)]
477struct SelectionHistoryEntry {
478 selections: Arc<[Selection<Anchor>]>,
479 select_next_state: Option<SelectNextState>,
480 select_prev_state: Option<SelectNextState>,
481 add_selections_state: Option<AddSelectionsState>,
482}
483
484enum SelectionHistoryMode {
485 Normal,
486 Undoing,
487 Redoing,
488}
489
490#[derive(Clone, PartialEq, Eq, Hash)]
491struct HoveredCursor {
492 replica_id: u16,
493 selection_id: usize,
494}
495
496impl Default for SelectionHistoryMode {
497 fn default() -> Self {
498 Self::Normal
499 }
500}
501
502#[derive(Default)]
503struct SelectionHistory {
504 #[allow(clippy::type_complexity)]
505 selections_by_transaction:
506 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
507 mode: SelectionHistoryMode,
508 undo_stack: VecDeque<SelectionHistoryEntry>,
509 redo_stack: VecDeque<SelectionHistoryEntry>,
510}
511
512impl SelectionHistory {
513 fn insert_transaction(
514 &mut self,
515 transaction_id: TransactionId,
516 selections: Arc<[Selection<Anchor>]>,
517 ) {
518 self.selections_by_transaction
519 .insert(transaction_id, (selections, None));
520 }
521
522 #[allow(clippy::type_complexity)]
523 fn transaction(
524 &self,
525 transaction_id: TransactionId,
526 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
527 self.selections_by_transaction.get(&transaction_id)
528 }
529
530 #[allow(clippy::type_complexity)]
531 fn transaction_mut(
532 &mut self,
533 transaction_id: TransactionId,
534 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
535 self.selections_by_transaction.get_mut(&transaction_id)
536 }
537
538 fn push(&mut self, entry: SelectionHistoryEntry) {
539 if !entry.selections.is_empty() {
540 match self.mode {
541 SelectionHistoryMode::Normal => {
542 self.push_undo(entry);
543 self.redo_stack.clear();
544 }
545 SelectionHistoryMode::Undoing => self.push_redo(entry),
546 SelectionHistoryMode::Redoing => self.push_undo(entry),
547 }
548 }
549 }
550
551 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
552 if self
553 .undo_stack
554 .back()
555 .map_or(true, |e| e.selections != entry.selections)
556 {
557 self.undo_stack.push_back(entry);
558 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
559 self.undo_stack.pop_front();
560 }
561 }
562 }
563
564 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
565 if self
566 .redo_stack
567 .back()
568 .map_or(true, |e| e.selections != entry.selections)
569 {
570 self.redo_stack.push_back(entry);
571 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
572 self.redo_stack.pop_front();
573 }
574 }
575 }
576}
577
578#[derive(Clone, Debug)]
579struct AddSelectionsState {
580 above: bool,
581 stack: Vec<usize>,
582}
583
584#[derive(Clone)]
585struct SelectNextState {
586 query: AhoCorasick,
587 wordwise: bool,
588 done: bool,
589}
590
591impl std::fmt::Debug for SelectNextState {
592 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
593 f.debug_struct(std::any::type_name::<Self>())
594 .field("wordwise", &self.wordwise)
595 .field("done", &self.done)
596 .finish()
597 }
598}
599
600#[derive(Debug)]
601struct AutocloseRegion {
602 selection_id: usize,
603 range: Range<Anchor>,
604 pair: BracketPair,
605}
606
607#[derive(Debug)]
608struct SnippetState {
609 ranges: Vec<Vec<Range<Anchor>>>,
610 active_index: usize,
611}
612
613#[doc(hidden)]
614pub struct RenameState {
615 pub range: Range<Anchor>,
616 pub old_name: Arc<str>,
617 pub editor: View<Editor>,
618 block_id: BlockId,
619}
620
621struct InvalidationStack<T>(Vec<T>);
622
623enum ContextMenu {
624 Completions(CompletionsMenu),
625 CodeActions(CodeActionsMenu),
626}
627
628impl ContextMenu {
629 fn select_first(
630 &mut self,
631 project: Option<&Model<Project>>,
632 cx: &mut ViewContext<Editor>,
633 ) -> bool {
634 if self.visible() {
635 match self {
636 ContextMenu::Completions(menu) => menu.select_first(project, cx),
637 ContextMenu::CodeActions(menu) => menu.select_first(cx),
638 }
639 true
640 } else {
641 false
642 }
643 }
644
645 fn select_prev(
646 &mut self,
647 project: Option<&Model<Project>>,
648 cx: &mut ViewContext<Editor>,
649 ) -> bool {
650 if self.visible() {
651 match self {
652 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
653 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
654 }
655 true
656 } else {
657 false
658 }
659 }
660
661 fn select_next(
662 &mut self,
663 project: Option<&Model<Project>>,
664 cx: &mut ViewContext<Editor>,
665 ) -> bool {
666 if self.visible() {
667 match self {
668 ContextMenu::Completions(menu) => menu.select_next(project, cx),
669 ContextMenu::CodeActions(menu) => menu.select_next(cx),
670 }
671 true
672 } else {
673 false
674 }
675 }
676
677 fn select_last(
678 &mut self,
679 project: Option<&Model<Project>>,
680 cx: &mut ViewContext<Editor>,
681 ) -> bool {
682 if self.visible() {
683 match self {
684 ContextMenu::Completions(menu) => menu.select_last(project, cx),
685 ContextMenu::CodeActions(menu) => menu.select_last(cx),
686 }
687 true
688 } else {
689 false
690 }
691 }
692
693 fn visible(&self) -> bool {
694 match self {
695 ContextMenu::Completions(menu) => menu.visible(),
696 ContextMenu::CodeActions(menu) => menu.visible(),
697 }
698 }
699
700 fn render(
701 &self,
702 cursor_position: DisplayPoint,
703 style: &EditorStyle,
704 max_height: Pixels,
705 workspace: Option<WeakView<Workspace>>,
706 cx: &mut ViewContext<Editor>,
707 ) -> (DisplayPoint, AnyElement) {
708 match self {
709 ContextMenu::Completions(menu) => (
710 cursor_position,
711 menu.render(style, max_height, workspace, cx),
712 ),
713 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
714 }
715 }
716}
717
718#[derive(Clone)]
719struct CompletionsMenu {
720 id: CompletionId,
721 initial_position: Anchor,
722 buffer: Model<Buffer>,
723 completions: Arc<RwLock<Box<[Completion]>>>,
724 match_candidates: Arc<[StringMatchCandidate]>,
725 matches: Arc<[StringMatch]>,
726 selected_item: usize,
727 scroll_handle: UniformListScrollHandle,
728 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
729}
730
731impl CompletionsMenu {
732 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
733 self.selected_item = 0;
734 self.scroll_handle.scroll_to_item(self.selected_item);
735 self.attempt_resolve_selected_completion_documentation(project, cx);
736 cx.notify();
737 }
738
739 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
740 if self.selected_item > 0 {
741 self.selected_item -= 1;
742 } else {
743 self.selected_item = self.matches.len() - 1;
744 }
745 self.scroll_handle.scroll_to_item(self.selected_item);
746 self.attempt_resolve_selected_completion_documentation(project, cx);
747 cx.notify();
748 }
749
750 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
751 if self.selected_item + 1 < self.matches.len() {
752 self.selected_item += 1;
753 } else {
754 self.selected_item = 0;
755 }
756 self.scroll_handle.scroll_to_item(self.selected_item);
757 self.attempt_resolve_selected_completion_documentation(project, cx);
758 cx.notify();
759 }
760
761 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
762 self.selected_item = self.matches.len() - 1;
763 self.scroll_handle.scroll_to_item(self.selected_item);
764 self.attempt_resolve_selected_completion_documentation(project, cx);
765 cx.notify();
766 }
767
768 fn pre_resolve_completion_documentation(
769 completions: Arc<RwLock<Box<[Completion]>>>,
770 matches: Arc<[StringMatch]>,
771 editor: &Editor,
772 cx: &mut ViewContext<Editor>,
773 ) -> Task<()> {
774 let settings = EditorSettings::get_global(cx);
775 if !settings.show_completion_documentation {
776 return Task::ready(());
777 }
778
779 let Some(provider) = editor.completion_provider.as_ref() else {
780 return Task::ready(());
781 };
782
783 let resolve_task = provider.resolve_completions(
784 matches.iter().map(|m| m.candidate_id).collect(),
785 completions.clone(),
786 cx,
787 );
788
789 return cx.spawn(move |this, mut cx| async move {
790 if let Some(true) = resolve_task.await.log_err() {
791 this.update(&mut cx, |_, cx| cx.notify()).ok();
792 }
793 });
794 }
795
796 fn attempt_resolve_selected_completion_documentation(
797 &mut self,
798 project: Option<&Model<Project>>,
799 cx: &mut ViewContext<Editor>,
800 ) {
801 let settings = EditorSettings::get_global(cx);
802 if !settings.show_completion_documentation {
803 return;
804 }
805
806 let completion_index = self.matches[self.selected_item].candidate_id;
807 let Some(project) = project else {
808 return;
809 };
810
811 let resolve_task = project.update(cx, |project, cx| {
812 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
813 });
814
815 let delay_ms =
816 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
817 let delay = Duration::from_millis(delay_ms);
818
819 self.selected_completion_documentation_resolve_debounce
820 .lock()
821 .fire_new(delay, cx, |_, cx| {
822 cx.spawn(move |this, mut cx| async move {
823 if let Some(true) = resolve_task.await.log_err() {
824 this.update(&mut cx, |_, cx| cx.notify()).ok();
825 }
826 })
827 });
828 }
829
830 fn visible(&self) -> bool {
831 !self.matches.is_empty()
832 }
833
834 fn render(
835 &self,
836 style: &EditorStyle,
837 max_height: Pixels,
838 workspace: Option<WeakView<Workspace>>,
839 cx: &mut ViewContext<Editor>,
840 ) -> AnyElement {
841 let settings = EditorSettings::get_global(cx);
842 let show_completion_documentation = settings.show_completion_documentation;
843
844 let widest_completion_ix = self
845 .matches
846 .iter()
847 .enumerate()
848 .max_by_key(|(_, mat)| {
849 let completions = self.completions.read();
850 let completion = &completions[mat.candidate_id];
851 let documentation = &completion.documentation;
852
853 let mut len = completion.label.text.chars().count();
854 if let Some(Documentation::SingleLine(text)) = documentation {
855 if show_completion_documentation {
856 len += text.chars().count();
857 }
858 }
859
860 len
861 })
862 .map(|(ix, _)| ix);
863
864 let completions = self.completions.clone();
865 let matches = self.matches.clone();
866 let selected_item = self.selected_item;
867 let style = style.clone();
868
869 let multiline_docs = if show_completion_documentation {
870 let mat = &self.matches[selected_item];
871 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
872 Some(Documentation::MultiLinePlainText(text)) => {
873 Some(div().child(SharedString::from(text.clone())))
874 }
875 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
876 Some(div().child(render_parsed_markdown(
877 "completions_markdown",
878 parsed,
879 &style,
880 workspace,
881 cx,
882 )))
883 }
884 _ => None,
885 };
886 multiline_docs.map(|div| {
887 div.id("multiline_docs")
888 .max_h(max_height)
889 .flex_1()
890 .px_1p5()
891 .py_1()
892 .min_w(px(260.))
893 .max_w(px(640.))
894 .w(px(500.))
895 .overflow_y_scroll()
896 // Prevent a mouse down on documentation from being propagated to the editor,
897 // because that would move the cursor.
898 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
899 })
900 } else {
901 None
902 };
903
904 let list = uniform_list(
905 cx.view().clone(),
906 "completions",
907 matches.len(),
908 move |_editor, range, cx| {
909 let start_ix = range.start;
910 let completions_guard = completions.read();
911
912 matches[range]
913 .iter()
914 .enumerate()
915 .map(|(ix, mat)| {
916 let item_ix = start_ix + ix;
917 let candidate_id = mat.candidate_id;
918 let completion = &completions_guard[candidate_id];
919
920 let documentation = if show_completion_documentation {
921 &completion.documentation
922 } else {
923 &None
924 };
925
926 let highlights = gpui::combine_highlights(
927 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
928 styled_runs_for_code_label(&completion.label, &style.syntax).map(
929 |(range, mut highlight)| {
930 // Ignore font weight for syntax highlighting, as we'll use it
931 // for fuzzy matches.
932 highlight.font_weight = None;
933 (range, highlight)
934 },
935 ),
936 );
937 let completion_label = StyledText::new(completion.label.text.clone())
938 .with_highlights(&style.text, highlights);
939 let documentation_label =
940 if let Some(Documentation::SingleLine(text)) = documentation {
941 if text.trim().is_empty() {
942 None
943 } else {
944 Some(
945 h_flex().ml_4().child(
946 Label::new(text.clone())
947 .size(LabelSize::Small)
948 .color(Color::Muted),
949 ),
950 )
951 }
952 } else {
953 None
954 };
955
956 div().min_w(px(220.)).max_w(px(540.)).child(
957 ListItem::new(mat.candidate_id)
958 .inset(true)
959 .selected(item_ix == selected_item)
960 .on_click(cx.listener(move |editor, _event, cx| {
961 cx.stop_propagation();
962 if let Some(task) = editor.confirm_completion(
963 &ConfirmCompletion {
964 item_ix: Some(item_ix),
965 },
966 cx,
967 ) {
968 task.detach_and_log_err(cx)
969 }
970 }))
971 .child(h_flex().overflow_hidden().child(completion_label))
972 .end_slot::<Div>(documentation_label),
973 )
974 })
975 .collect()
976 },
977 )
978 .max_h(max_height)
979 .track_scroll(self.scroll_handle.clone())
980 .with_width_from_item(widest_completion_ix);
981
982 Popover::new()
983 .child(list)
984 .when_some(multiline_docs, |popover, multiline_docs| {
985 popover.aside(multiline_docs)
986 })
987 .into_any_element()
988 }
989
990 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
991 let mut matches = if let Some(query) = query {
992 fuzzy::match_strings(
993 &self.match_candidates,
994 query,
995 query.chars().any(|c| c.is_uppercase()),
996 100,
997 &Default::default(),
998 executor,
999 )
1000 .await
1001 } else {
1002 self.match_candidates
1003 .iter()
1004 .enumerate()
1005 .map(|(candidate_id, candidate)| StringMatch {
1006 candidate_id,
1007 score: Default::default(),
1008 positions: Default::default(),
1009 string: candidate.string.clone(),
1010 })
1011 .collect()
1012 };
1013
1014 // Remove all candidates where the query's start does not match the start of any word in the candidate
1015 if let Some(query) = query {
1016 if let Some(query_start) = query.chars().next() {
1017 matches.retain(|string_match| {
1018 split_words(&string_match.string).any(|word| {
1019 // Check that the first codepoint of the word as lowercase matches the first
1020 // codepoint of the query as lowercase
1021 word.chars()
1022 .flat_map(|codepoint| codepoint.to_lowercase())
1023 .zip(query_start.to_lowercase())
1024 .all(|(word_cp, query_cp)| word_cp == query_cp)
1025 })
1026 });
1027 }
1028 }
1029
1030 let completions = self.completions.read();
1031 matches.sort_unstable_by_key(|mat| {
1032 // We do want to strike a balance here between what the language server tells us
1033 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1034 // `Creat` and there is a local variable called `CreateComponent`).
1035 // So what we do is: we bucket all matches into two buckets
1036 // - Strong matches
1037 // - Weak matches
1038 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1039 // and the Weak matches are the rest.
1040 //
1041 // For the strong matches, we sort by the language-servers score first and for the weak
1042 // matches, we prefer our fuzzy finder first.
1043 //
1044 // The thinking behind that: it's useless to take the sort_text the language-server gives
1045 // us into account when it's obviously a bad match.
1046
1047 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1048 enum MatchScore<'a> {
1049 Strong {
1050 sort_text: Option<&'a str>,
1051 score: Reverse<OrderedFloat<f64>>,
1052 sort_key: (usize, &'a str),
1053 },
1054 Weak {
1055 score: Reverse<OrderedFloat<f64>>,
1056 sort_text: Option<&'a str>,
1057 sort_key: (usize, &'a str),
1058 },
1059 }
1060
1061 let completion = &completions[mat.candidate_id];
1062 let sort_key = completion.sort_key();
1063 let sort_text = completion.lsp_completion.sort_text.as_deref();
1064 let score = Reverse(OrderedFloat(mat.score));
1065
1066 if mat.score >= 0.2 {
1067 MatchScore::Strong {
1068 sort_text,
1069 score,
1070 sort_key,
1071 }
1072 } else {
1073 MatchScore::Weak {
1074 score,
1075 sort_text,
1076 sort_key,
1077 }
1078 }
1079 });
1080
1081 for mat in &mut matches {
1082 let completion = &completions[mat.candidate_id];
1083 mat.string = completion.label.text.clone();
1084 for position in &mut mat.positions {
1085 *position += completion.label.filter_range.start;
1086 }
1087 }
1088 drop(completions);
1089
1090 self.matches = matches.into();
1091 self.selected_item = 0;
1092 }
1093}
1094
1095#[derive(Clone)]
1096struct CodeActionsMenu {
1097 actions: Arc<[CodeAction]>,
1098 buffer: Model<Buffer>,
1099 selected_item: usize,
1100 scroll_handle: UniformListScrollHandle,
1101 deployed_from_indicator: bool,
1102}
1103
1104impl CodeActionsMenu {
1105 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1106 self.selected_item = 0;
1107 self.scroll_handle.scroll_to_item(self.selected_item);
1108 cx.notify()
1109 }
1110
1111 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1112 if self.selected_item > 0 {
1113 self.selected_item -= 1;
1114 } else {
1115 self.selected_item = self.actions.len() - 1;
1116 }
1117 self.scroll_handle.scroll_to_item(self.selected_item);
1118 cx.notify();
1119 }
1120
1121 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1122 if self.selected_item + 1 < self.actions.len() {
1123 self.selected_item += 1;
1124 } else {
1125 self.selected_item = 0;
1126 }
1127 self.scroll_handle.scroll_to_item(self.selected_item);
1128 cx.notify();
1129 }
1130
1131 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1132 self.selected_item = self.actions.len() - 1;
1133 self.scroll_handle.scroll_to_item(self.selected_item);
1134 cx.notify()
1135 }
1136
1137 fn visible(&self) -> bool {
1138 !self.actions.is_empty()
1139 }
1140
1141 fn render(
1142 &self,
1143 mut cursor_position: DisplayPoint,
1144 _style: &EditorStyle,
1145 max_height: Pixels,
1146 cx: &mut ViewContext<Editor>,
1147 ) -> (DisplayPoint, AnyElement) {
1148 let actions = self.actions.clone();
1149 let selected_item = self.selected_item;
1150
1151 let element = uniform_list(
1152 cx.view().clone(),
1153 "code_actions_menu",
1154 self.actions.len(),
1155 move |_this, range, cx| {
1156 actions[range.clone()]
1157 .iter()
1158 .enumerate()
1159 .map(|(ix, action)| {
1160 let item_ix = range.start + ix;
1161 let selected = selected_item == item_ix;
1162 let colors = cx.theme().colors();
1163 div()
1164 .px_2()
1165 .text_color(colors.text)
1166 .when(selected, |style| {
1167 style
1168 .bg(colors.element_active)
1169 .text_color(colors.text_accent)
1170 })
1171 .hover(|style| {
1172 style
1173 .bg(colors.element_hover)
1174 .text_color(colors.text_accent)
1175 })
1176 .on_mouse_down(
1177 MouseButton::Left,
1178 cx.listener(move |editor, _, cx| {
1179 cx.stop_propagation();
1180 if let Some(task) = editor.confirm_code_action(
1181 &ConfirmCodeAction {
1182 item_ix: Some(item_ix),
1183 },
1184 cx,
1185 ) {
1186 task.detach_and_log_err(cx)
1187 }
1188 }),
1189 )
1190 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1191 .child(SharedString::from(action.lsp_action.title.clone()))
1192 })
1193 .collect()
1194 },
1195 )
1196 .elevation_1(cx)
1197 .px_2()
1198 .py_1()
1199 .max_h(max_height)
1200 .track_scroll(self.scroll_handle.clone())
1201 .with_width_from_item(
1202 self.actions
1203 .iter()
1204 .enumerate()
1205 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1206 .map(|(ix, _)| ix),
1207 )
1208 .into_any_element();
1209
1210 if self.deployed_from_indicator {
1211 *cursor_position.column_mut() = 0;
1212 }
1213
1214 (cursor_position, element)
1215 }
1216}
1217
1218#[derive(Debug)]
1219pub(crate) struct CopilotState {
1220 excerpt_id: Option<ExcerptId>,
1221 pending_refresh: Task<Option<()>>,
1222 pending_cycling_refresh: Task<Option<()>>,
1223 cycled: bool,
1224 completions: Vec<copilot::Completion>,
1225 active_completion_index: usize,
1226 suggestion: Option<Inlay>,
1227}
1228
1229impl Default for CopilotState {
1230 fn default() -> Self {
1231 Self {
1232 excerpt_id: None,
1233 pending_cycling_refresh: Task::ready(Some(())),
1234 pending_refresh: Task::ready(Some(())),
1235 completions: Default::default(),
1236 active_completion_index: 0,
1237 cycled: false,
1238 suggestion: None,
1239 }
1240 }
1241}
1242
1243impl CopilotState {
1244 fn active_completion(&self) -> Option<&copilot::Completion> {
1245 self.completions.get(self.active_completion_index)
1246 }
1247
1248 fn text_for_active_completion(
1249 &self,
1250 cursor: Anchor,
1251 buffer: &MultiBufferSnapshot,
1252 ) -> Option<&str> {
1253 use language::ToOffset as _;
1254
1255 let completion = self.active_completion()?;
1256 let excerpt_id = self.excerpt_id?;
1257 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1258 if excerpt_id != cursor.excerpt_id
1259 || !completion.range.start.is_valid(completion_buffer)
1260 || !completion.range.end.is_valid(completion_buffer)
1261 {
1262 return None;
1263 }
1264
1265 let mut completion_range = completion.range.to_offset(&completion_buffer);
1266 let prefix_len = Self::common_prefix(
1267 completion_buffer.chars_for_range(completion_range.clone()),
1268 completion.text.chars(),
1269 );
1270 completion_range.start += prefix_len;
1271 let suffix_len = Self::common_prefix(
1272 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1273 completion.text[prefix_len..].chars().rev(),
1274 );
1275 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1276
1277 if completion_range.is_empty()
1278 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1279 {
1280 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1281 if completion_text.trim().is_empty() {
1282 None
1283 } else {
1284 Some(completion_text)
1285 }
1286 } else {
1287 None
1288 }
1289 }
1290
1291 fn cycle_completions(&mut self, direction: Direction) {
1292 match direction {
1293 Direction::Prev => {
1294 self.active_completion_index = if self.active_completion_index == 0 {
1295 self.completions.len().saturating_sub(1)
1296 } else {
1297 self.active_completion_index - 1
1298 };
1299 }
1300 Direction::Next => {
1301 if self.completions.len() == 0 {
1302 self.active_completion_index = 0
1303 } else {
1304 self.active_completion_index =
1305 (self.active_completion_index + 1) % self.completions.len();
1306 }
1307 }
1308 }
1309 }
1310
1311 fn push_completion(&mut self, new_completion: copilot::Completion) {
1312 for completion in &self.completions {
1313 if completion.text == new_completion.text && completion.range == new_completion.range {
1314 return;
1315 }
1316 }
1317 self.completions.push(new_completion);
1318 }
1319
1320 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1321 a.zip(b)
1322 .take_while(|(a, b)| a == b)
1323 .map(|(a, _)| a.len_utf8())
1324 .sum()
1325 }
1326}
1327
1328#[derive(Debug)]
1329struct ActiveDiagnosticGroup {
1330 primary_range: Range<Anchor>,
1331 primary_message: String,
1332 blocks: HashMap<BlockId, Diagnostic>,
1333 is_valid: bool,
1334}
1335
1336#[derive(Serialize, Deserialize)]
1337pub struct ClipboardSelection {
1338 pub len: usize,
1339 pub is_entire_line: bool,
1340 pub first_line_indent: u32,
1341}
1342
1343#[derive(Debug)]
1344pub(crate) struct NavigationData {
1345 cursor_anchor: Anchor,
1346 cursor_position: Point,
1347 scroll_anchor: ScrollAnchor,
1348 scroll_top_row: u32,
1349}
1350
1351enum GotoDefinitionKind {
1352 Symbol,
1353 Type,
1354 Implementation,
1355}
1356
1357#[derive(Debug, Clone)]
1358enum InlayHintRefreshReason {
1359 Toggle(bool),
1360 SettingsChange(InlayHintSettings),
1361 NewLinesShown,
1362 BufferEdited(HashSet<Arc<Language>>),
1363 RefreshRequested,
1364 ExcerptsRemoved(Vec<ExcerptId>),
1365}
1366
1367impl InlayHintRefreshReason {
1368 fn description(&self) -> &'static str {
1369 match self {
1370 Self::Toggle(_) => "toggle",
1371 Self::SettingsChange(_) => "settings change",
1372 Self::NewLinesShown => "new lines shown",
1373 Self::BufferEdited(_) => "buffer edited",
1374 Self::RefreshRequested => "refresh requested",
1375 Self::ExcerptsRemoved(_) => "excerpts removed",
1376 }
1377 }
1378}
1379
1380impl Editor {
1381 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1382 let buffer = cx.new_model(|cx| {
1383 Buffer::new(
1384 0,
1385 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1386 String::new(),
1387 )
1388 });
1389 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1390 Self::new(EditorMode::SingleLine, buffer, None, cx)
1391 }
1392
1393 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1394 let buffer = cx.new_model(|cx| {
1395 Buffer::new(
1396 0,
1397 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1398 String::new(),
1399 )
1400 });
1401 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1402 Self::new(EditorMode::Full, buffer, None, cx)
1403 }
1404
1405 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1406 let buffer = cx.new_model(|cx| {
1407 Buffer::new(
1408 0,
1409 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1410 String::new(),
1411 )
1412 });
1413 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1414 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1415 }
1416
1417 pub fn for_buffer(
1418 buffer: Model<Buffer>,
1419 project: Option<Model<Project>>,
1420 cx: &mut ViewContext<Self>,
1421 ) -> Self {
1422 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1423 Self::new(EditorMode::Full, buffer, project, cx)
1424 }
1425
1426 pub fn for_multibuffer(
1427 buffer: Model<MultiBuffer>,
1428 project: Option<Model<Project>>,
1429 cx: &mut ViewContext<Self>,
1430 ) -> Self {
1431 Self::new(EditorMode::Full, buffer, project, cx)
1432 }
1433
1434 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1435 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1436 self.display_map.update(cx, |display_map, cx| {
1437 let snapshot = display_map.snapshot(cx);
1438 clone.display_map.update(cx, |display_map, cx| {
1439 display_map.set_state(&snapshot, cx);
1440 });
1441 });
1442 clone.selections.clone_state(&self.selections);
1443 clone.scroll_manager.clone_state(&self.scroll_manager);
1444 clone.searchable = self.searchable;
1445 clone
1446 }
1447
1448 fn new(
1449 mode: EditorMode,
1450 buffer: Model<MultiBuffer>,
1451 project: Option<Model<Project>>,
1452 cx: &mut ViewContext<Self>,
1453 ) -> Self {
1454 let style = cx.text_style();
1455 let font_size = style.font_size.to_pixels(cx.rem_size());
1456 let display_map = cx.new_model(|cx| {
1457 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1458 });
1459
1460 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1461
1462 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1463
1464 let soft_wrap_mode_override =
1465 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1466
1467 let mut project_subscriptions = Vec::new();
1468 if mode == EditorMode::Full {
1469 if let Some(project) = project.as_ref() {
1470 if buffer.read(cx).is_singleton() {
1471 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1472 cx.emit(EditorEvent::TitleChanged);
1473 }));
1474 }
1475 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1476 if let project::Event::RefreshInlayHints = event {
1477 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1478 };
1479 }));
1480 }
1481 }
1482
1483 let inlay_hint_settings = inlay_hint_settings(
1484 selections.newest_anchor().head(),
1485 &buffer.read(cx).snapshot(cx),
1486 cx,
1487 );
1488
1489 let focus_handle = cx.focus_handle();
1490 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1491 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1492
1493 let mut this = Self {
1494 focus_handle,
1495 buffer: buffer.clone(),
1496 display_map: display_map.clone(),
1497 selections,
1498 scroll_manager: ScrollManager::new(cx),
1499 columnar_selection_tail: None,
1500 add_selections_state: None,
1501 select_next_state: None,
1502 select_prev_state: None,
1503 selection_history: Default::default(),
1504 autoclose_regions: Default::default(),
1505 snippet_stack: Default::default(),
1506 select_larger_syntax_node_stack: Vec::new(),
1507 ime_transaction: Default::default(),
1508 active_diagnostics: None,
1509 soft_wrap_mode_override,
1510 completion_provider: project.clone().map(|project| Box::new(project) as _),
1511 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1512 project,
1513 blink_manager: blink_manager.clone(),
1514 show_local_selections: true,
1515 mode,
1516 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1517 show_gutter: mode == EditorMode::Full,
1518 show_wrap_guides: None,
1519 placeholder_text: None,
1520 highlighted_rows: None,
1521 background_highlights: Default::default(),
1522 inlay_background_highlights: Default::default(),
1523 nav_history: None,
1524 context_menu: RwLock::new(None),
1525 mouse_context_menu: None,
1526 completion_tasks: Default::default(),
1527 next_completion_id: 0,
1528 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1529 next_inlay_id: 0,
1530 available_code_actions: Default::default(),
1531 code_actions_task: Default::default(),
1532 document_highlights_task: Default::default(),
1533 pending_rename: Default::default(),
1534 searchable: true,
1535 cursor_shape: Default::default(),
1536 autoindent_mode: Some(AutoindentMode::EachLine),
1537 collapse_matches: false,
1538 workspace: None,
1539 keymap_context_layers: Default::default(),
1540 input_enabled: true,
1541 use_modal_editing: mode == EditorMode::Full,
1542 read_only: false,
1543 use_autoclose: true,
1544 auto_replace_emoji_shortcode: false,
1545 leader_peer_id: None,
1546 remote_id: None,
1547 hover_state: Default::default(),
1548 hovered_link_state: Default::default(),
1549 copilot_state: Default::default(),
1550 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1551 gutter_hovered: false,
1552 pixel_position_of_newest_cursor: None,
1553 gutter_width: Default::default(),
1554 style: None,
1555 show_cursor_names: false,
1556 hovered_cursors: Default::default(),
1557 editor_actions: Default::default(),
1558 show_copilot_suggestions: mode == EditorMode::Full,
1559 custom_context_menu: None,
1560 _subscriptions: vec![
1561 cx.observe(&buffer, Self::on_buffer_changed),
1562 cx.subscribe(&buffer, Self::on_buffer_event),
1563 cx.observe(&display_map, Self::on_display_map_changed),
1564 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1565 cx.observe_global::<SettingsStore>(Self::settings_changed),
1566 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1567 cx.observe_window_activation(|editor, cx| {
1568 let active = cx.is_window_active();
1569 editor.blink_manager.update(cx, |blink_manager, cx| {
1570 if active {
1571 blink_manager.enable(cx);
1572 } else {
1573 blink_manager.show_cursor(cx);
1574 blink_manager.disable(cx);
1575 }
1576 });
1577 }),
1578 ],
1579 };
1580
1581 this._subscriptions.extend(project_subscriptions);
1582
1583 this.end_selection(cx);
1584 this.scroll_manager.show_scrollbar(cx);
1585
1586 if mode == EditorMode::Full {
1587 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1588 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1589 }
1590
1591 this.report_editor_event("open", None, cx);
1592 this
1593 }
1594
1595 fn key_context(&self, cx: &AppContext) -> KeyContext {
1596 let mut key_context = KeyContext::default();
1597 key_context.add("Editor");
1598 let mode = match self.mode {
1599 EditorMode::SingleLine => "single_line",
1600 EditorMode::AutoHeight { .. } => "auto_height",
1601 EditorMode::Full => "full",
1602 };
1603 key_context.set("mode", mode);
1604 if self.pending_rename.is_some() {
1605 key_context.add("renaming");
1606 }
1607 if self.context_menu_visible() {
1608 match self.context_menu.read().as_ref() {
1609 Some(ContextMenu::Completions(_)) => {
1610 key_context.add("menu");
1611 key_context.add("showing_completions")
1612 }
1613 Some(ContextMenu::CodeActions(_)) => {
1614 key_context.add("menu");
1615 key_context.add("showing_code_actions")
1616 }
1617 None => {}
1618 }
1619 }
1620
1621 for layer in self.keymap_context_layers.values() {
1622 key_context.extend(layer);
1623 }
1624
1625 if let Some(extension) = self
1626 .buffer
1627 .read(cx)
1628 .as_singleton()
1629 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1630 {
1631 key_context.set("extension", extension.to_string());
1632 }
1633
1634 if self.has_active_copilot_suggestion(cx) {
1635 key_context.add("copilot_suggestion");
1636 }
1637
1638 key_context
1639 }
1640
1641 pub fn new_file(
1642 workspace: &mut Workspace,
1643 _: &workspace::NewFile,
1644 cx: &mut ViewContext<Workspace>,
1645 ) {
1646 let project = workspace.project().clone();
1647 if project.read(cx).is_remote() {
1648 cx.propagate();
1649 } else if let Some(buffer) = project
1650 .update(cx, |project, cx| project.create_buffer("", None, cx))
1651 .log_err()
1652 {
1653 workspace.add_item_to_active_pane(
1654 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1655 cx,
1656 );
1657 }
1658 }
1659
1660 pub fn new_file_in_direction(
1661 workspace: &mut Workspace,
1662 action: &workspace::NewFileInDirection,
1663 cx: &mut ViewContext<Workspace>,
1664 ) {
1665 let project = workspace.project().clone();
1666 if project.read(cx).is_remote() {
1667 cx.propagate();
1668 } else if let Some(buffer) = project
1669 .update(cx, |project, cx| project.create_buffer("", None, cx))
1670 .log_err()
1671 {
1672 workspace.split_item(
1673 action.0,
1674 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1675 cx,
1676 );
1677 }
1678 }
1679
1680 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1681 self.buffer.read(cx).replica_id()
1682 }
1683
1684 pub fn leader_peer_id(&self) -> Option<PeerId> {
1685 self.leader_peer_id
1686 }
1687
1688 pub fn buffer(&self) -> &Model<MultiBuffer> {
1689 &self.buffer
1690 }
1691
1692 pub fn workspace(&self) -> Option<View<Workspace>> {
1693 self.workspace.as_ref()?.0.upgrade()
1694 }
1695
1696 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1697 self.buffer().read(cx).title(cx)
1698 }
1699
1700 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1701 EditorSnapshot {
1702 mode: self.mode,
1703 show_gutter: self.show_gutter,
1704 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1705 scroll_anchor: self.scroll_manager.anchor(),
1706 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1707 placeholder_text: self.placeholder_text.clone(),
1708 is_focused: self.focus_handle.is_focused(cx),
1709 }
1710 }
1711
1712 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1713 self.buffer.read(cx).language_at(point, cx)
1714 }
1715
1716 pub fn file_at<T: ToOffset>(
1717 &self,
1718 point: T,
1719 cx: &AppContext,
1720 ) -> Option<Arc<dyn language::File>> {
1721 self.buffer.read(cx).read(cx).file_at(point).cloned()
1722 }
1723
1724 pub fn active_excerpt(
1725 &self,
1726 cx: &AppContext,
1727 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1728 self.buffer
1729 .read(cx)
1730 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1731 }
1732
1733 pub fn mode(&self) -> EditorMode {
1734 self.mode
1735 }
1736
1737 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1738 self.collaboration_hub.as_deref()
1739 }
1740
1741 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1742 self.collaboration_hub = Some(hub);
1743 }
1744
1745 pub fn set_custom_context_menu(
1746 &mut self,
1747 f: impl 'static
1748 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1749 ) {
1750 self.custom_context_menu = Some(Box::new(f))
1751 }
1752
1753 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1754 self.completion_provider = Some(hub);
1755 }
1756
1757 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1758 self.placeholder_text.as_deref()
1759 }
1760
1761 pub fn set_placeholder_text(
1762 &mut self,
1763 placeholder_text: impl Into<Arc<str>>,
1764 cx: &mut ViewContext<Self>,
1765 ) {
1766 let placeholder_text = Some(placeholder_text.into());
1767 if self.placeholder_text != placeholder_text {
1768 self.placeholder_text = placeholder_text;
1769 cx.notify();
1770 }
1771 }
1772
1773 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1774 self.cursor_shape = cursor_shape;
1775 cx.notify();
1776 }
1777
1778 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1779 self.collapse_matches = collapse_matches;
1780 }
1781
1782 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1783 if self.collapse_matches {
1784 return range.start..range.start;
1785 }
1786 range.clone()
1787 }
1788
1789 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1790 if self.display_map.read(cx).clip_at_line_ends != clip {
1791 self.display_map
1792 .update(cx, |map, _| map.clip_at_line_ends = clip);
1793 }
1794 }
1795
1796 pub fn set_keymap_context_layer<Tag: 'static>(
1797 &mut self,
1798 context: KeyContext,
1799 cx: &mut ViewContext<Self>,
1800 ) {
1801 self.keymap_context_layers
1802 .insert(TypeId::of::<Tag>(), context);
1803 cx.notify();
1804 }
1805
1806 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1807 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1808 cx.notify();
1809 }
1810
1811 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1812 self.input_enabled = input_enabled;
1813 }
1814
1815 pub fn set_autoindent(&mut self, autoindent: bool) {
1816 if autoindent {
1817 self.autoindent_mode = Some(AutoindentMode::EachLine);
1818 } else {
1819 self.autoindent_mode = None;
1820 }
1821 }
1822
1823 pub fn read_only(&self, cx: &AppContext) -> bool {
1824 self.read_only || self.buffer.read(cx).read_only()
1825 }
1826
1827 pub fn set_read_only(&mut self, read_only: bool) {
1828 self.read_only = read_only;
1829 }
1830
1831 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1832 self.use_autoclose = autoclose;
1833 }
1834
1835 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1836 self.auto_replace_emoji_shortcode = auto_replace;
1837 }
1838
1839 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1840 self.show_copilot_suggestions = show_copilot_suggestions;
1841 }
1842
1843 pub fn set_use_modal_editing(&mut self, to: bool) {
1844 self.use_modal_editing = to;
1845 }
1846
1847 pub fn use_modal_editing(&self) -> bool {
1848 self.use_modal_editing
1849 }
1850
1851 fn selections_did_change(
1852 &mut self,
1853 local: bool,
1854 old_cursor_position: &Anchor,
1855 cx: &mut ViewContext<Self>,
1856 ) {
1857 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1858 self.buffer.update(cx, |buffer, cx| {
1859 buffer.set_active_selections(
1860 &self.selections.disjoint_anchors(),
1861 self.selections.line_mode,
1862 self.cursor_shape,
1863 cx,
1864 )
1865 });
1866 }
1867
1868 let display_map = self
1869 .display_map
1870 .update(cx, |display_map, cx| display_map.snapshot(cx));
1871 let buffer = &display_map.buffer_snapshot;
1872 self.add_selections_state = None;
1873 self.select_next_state = None;
1874 self.select_prev_state = None;
1875 self.select_larger_syntax_node_stack.clear();
1876 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1877 self.snippet_stack
1878 .invalidate(&self.selections.disjoint_anchors(), buffer);
1879 self.take_rename(false, cx);
1880
1881 let new_cursor_position = self.selections.newest_anchor().head();
1882
1883 self.push_to_nav_history(
1884 *old_cursor_position,
1885 Some(new_cursor_position.to_point(buffer)),
1886 cx,
1887 );
1888
1889 if local {
1890 let new_cursor_position = self.selections.newest_anchor().head();
1891 let mut context_menu = self.context_menu.write();
1892 let completion_menu = match context_menu.as_ref() {
1893 Some(ContextMenu::Completions(menu)) => Some(menu),
1894
1895 _ => {
1896 *context_menu = None;
1897 None
1898 }
1899 };
1900
1901 if let Some(completion_menu) = completion_menu {
1902 let cursor_position = new_cursor_position.to_offset(buffer);
1903 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1904 if kind == Some(CharKind::Word)
1905 && word_range.to_inclusive().contains(&cursor_position)
1906 {
1907 let mut completion_menu = completion_menu.clone();
1908 drop(context_menu);
1909
1910 let query = Self::completion_query(buffer, cursor_position);
1911 cx.spawn(move |this, mut cx| async move {
1912 completion_menu
1913 .filter(query.as_deref(), cx.background_executor().clone())
1914 .await;
1915
1916 this.update(&mut cx, |this, cx| {
1917 let mut context_menu = this.context_menu.write();
1918 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1919 return;
1920 };
1921
1922 if menu.id > completion_menu.id {
1923 return;
1924 }
1925
1926 *context_menu = Some(ContextMenu::Completions(completion_menu));
1927 drop(context_menu);
1928 cx.notify();
1929 })
1930 })
1931 .detach();
1932
1933 self.show_completions(&ShowCompletions, cx);
1934 } else {
1935 drop(context_menu);
1936 self.hide_context_menu(cx);
1937 }
1938 } else {
1939 drop(context_menu);
1940 }
1941
1942 hide_hover(self, cx);
1943
1944 if old_cursor_position.to_display_point(&display_map).row()
1945 != new_cursor_position.to_display_point(&display_map).row()
1946 {
1947 self.available_code_actions.take();
1948 }
1949 self.refresh_code_actions(cx);
1950 self.refresh_document_highlights(cx);
1951 refresh_matching_bracket_highlights(self, cx);
1952 self.discard_copilot_suggestion(cx);
1953 }
1954
1955 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1956 cx.emit(EditorEvent::SelectionsChanged { local });
1957
1958 if self.selections.disjoint_anchors().len() == 1 {
1959 cx.emit(SearchEvent::ActiveMatchChanged)
1960 }
1961
1962 cx.notify();
1963 }
1964
1965 pub fn change_selections<R>(
1966 &mut self,
1967 autoscroll: Option<Autoscroll>,
1968 cx: &mut ViewContext<Self>,
1969 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1970 ) -> R {
1971 let old_cursor_position = self.selections.newest_anchor().head();
1972 self.push_to_selection_history();
1973
1974 let (changed, result) = self.selections.change_with(cx, change);
1975
1976 if changed {
1977 if let Some(autoscroll) = autoscroll {
1978 self.request_autoscroll(autoscroll, cx);
1979 }
1980 self.selections_did_change(true, &old_cursor_position, cx);
1981 }
1982
1983 result
1984 }
1985
1986 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1987 where
1988 I: IntoIterator<Item = (Range<S>, T)>,
1989 S: ToOffset,
1990 T: Into<Arc<str>>,
1991 {
1992 if self.read_only(cx) {
1993 return;
1994 }
1995
1996 self.buffer
1997 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1998 }
1999
2000 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2001 where
2002 I: IntoIterator<Item = (Range<S>, T)>,
2003 S: ToOffset,
2004 T: Into<Arc<str>>,
2005 {
2006 if self.read_only(cx) {
2007 return;
2008 }
2009
2010 self.buffer.update(cx, |buffer, cx| {
2011 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2012 });
2013 }
2014
2015 pub fn edit_with_block_indent<I, S, T>(
2016 &mut self,
2017 edits: I,
2018 original_indent_columns: Vec<u32>,
2019 cx: &mut ViewContext<Self>,
2020 ) where
2021 I: IntoIterator<Item = (Range<S>, T)>,
2022 S: ToOffset,
2023 T: Into<Arc<str>>,
2024 {
2025 if self.read_only(cx) {
2026 return;
2027 }
2028
2029 self.buffer.update(cx, |buffer, cx| {
2030 buffer.edit(
2031 edits,
2032 Some(AutoindentMode::Block {
2033 original_indent_columns,
2034 }),
2035 cx,
2036 )
2037 });
2038 }
2039
2040 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2041 self.hide_context_menu(cx);
2042
2043 match phase {
2044 SelectPhase::Begin {
2045 position,
2046 add,
2047 click_count,
2048 } => self.begin_selection(position, add, click_count, cx),
2049 SelectPhase::BeginColumnar {
2050 position,
2051 goal_column,
2052 } => self.begin_columnar_selection(position, goal_column, cx),
2053 SelectPhase::Extend {
2054 position,
2055 click_count,
2056 } => self.extend_selection(position, click_count, cx),
2057 SelectPhase::Update {
2058 position,
2059 goal_column,
2060 scroll_delta,
2061 } => self.update_selection(position, goal_column, scroll_delta, cx),
2062 SelectPhase::End => self.end_selection(cx),
2063 }
2064 }
2065
2066 fn extend_selection(
2067 &mut self,
2068 position: DisplayPoint,
2069 click_count: usize,
2070 cx: &mut ViewContext<Self>,
2071 ) {
2072 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2073 let tail = self.selections.newest::<usize>(cx).tail();
2074 self.begin_selection(position, false, click_count, cx);
2075
2076 let position = position.to_offset(&display_map, Bias::Left);
2077 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2078
2079 let mut pending_selection = self
2080 .selections
2081 .pending_anchor()
2082 .expect("extend_selection not called with pending selection");
2083 if position >= tail {
2084 pending_selection.start = tail_anchor;
2085 } else {
2086 pending_selection.end = tail_anchor;
2087 pending_selection.reversed = true;
2088 }
2089
2090 let mut pending_mode = self.selections.pending_mode().unwrap();
2091 match &mut pending_mode {
2092 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2093 _ => {}
2094 }
2095
2096 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2097 s.set_pending(pending_selection, pending_mode)
2098 });
2099 }
2100
2101 fn begin_selection(
2102 &mut self,
2103 position: DisplayPoint,
2104 add: bool,
2105 click_count: usize,
2106 cx: &mut ViewContext<Self>,
2107 ) {
2108 if !self.focus_handle.is_focused(cx) {
2109 cx.focus(&self.focus_handle);
2110 }
2111
2112 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2113 let buffer = &display_map.buffer_snapshot;
2114 let newest_selection = self.selections.newest_anchor().clone();
2115 let position = display_map.clip_point(position, Bias::Left);
2116
2117 let start;
2118 let end;
2119 let mode;
2120 let auto_scroll;
2121 match click_count {
2122 1 => {
2123 start = buffer.anchor_before(position.to_point(&display_map));
2124 end = start;
2125 mode = SelectMode::Character;
2126 auto_scroll = true;
2127 }
2128 2 => {
2129 let range = movement::surrounding_word(&display_map, position);
2130 start = buffer.anchor_before(range.start.to_point(&display_map));
2131 end = buffer.anchor_before(range.end.to_point(&display_map));
2132 mode = SelectMode::Word(start..end);
2133 auto_scroll = true;
2134 }
2135 3 => {
2136 let position = display_map
2137 .clip_point(position, Bias::Left)
2138 .to_point(&display_map);
2139 let line_start = display_map.prev_line_boundary(position).0;
2140 let next_line_start = buffer.clip_point(
2141 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2142 Bias::Left,
2143 );
2144 start = buffer.anchor_before(line_start);
2145 end = buffer.anchor_before(next_line_start);
2146 mode = SelectMode::Line(start..end);
2147 auto_scroll = true;
2148 }
2149 _ => {
2150 start = buffer.anchor_before(0);
2151 end = buffer.anchor_before(buffer.len());
2152 mode = SelectMode::All;
2153 auto_scroll = false;
2154 }
2155 }
2156
2157 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2158 if !add {
2159 s.clear_disjoint();
2160 } else if click_count > 1 {
2161 s.delete(newest_selection.id)
2162 }
2163
2164 s.set_pending_anchor_range(start..end, mode);
2165 });
2166 }
2167
2168 fn begin_columnar_selection(
2169 &mut self,
2170 position: DisplayPoint,
2171 goal_column: u32,
2172 cx: &mut ViewContext<Self>,
2173 ) {
2174 if !self.focus_handle.is_focused(cx) {
2175 cx.focus(&self.focus_handle);
2176 }
2177
2178 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2179 let tail = self.selections.newest::<Point>(cx).tail();
2180 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2181
2182 self.select_columns(
2183 tail.to_display_point(&display_map),
2184 position,
2185 goal_column,
2186 &display_map,
2187 cx,
2188 );
2189 }
2190
2191 fn update_selection(
2192 &mut self,
2193 position: DisplayPoint,
2194 goal_column: u32,
2195 scroll_delta: gpui::Point<f32>,
2196 cx: &mut ViewContext<Self>,
2197 ) {
2198 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2199
2200 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2201 let tail = tail.to_display_point(&display_map);
2202 self.select_columns(tail, position, goal_column, &display_map, cx);
2203 } else if let Some(mut pending) = self.selections.pending_anchor() {
2204 let buffer = self.buffer.read(cx).snapshot(cx);
2205 let head;
2206 let tail;
2207 let mode = self.selections.pending_mode().unwrap();
2208 match &mode {
2209 SelectMode::Character => {
2210 head = position.to_point(&display_map);
2211 tail = pending.tail().to_point(&buffer);
2212 }
2213 SelectMode::Word(original_range) => {
2214 let original_display_range = original_range.start.to_display_point(&display_map)
2215 ..original_range.end.to_display_point(&display_map);
2216 let original_buffer_range = original_display_range.start.to_point(&display_map)
2217 ..original_display_range.end.to_point(&display_map);
2218 if movement::is_inside_word(&display_map, position)
2219 || original_display_range.contains(&position)
2220 {
2221 let word_range = movement::surrounding_word(&display_map, position);
2222 if word_range.start < original_display_range.start {
2223 head = word_range.start.to_point(&display_map);
2224 } else {
2225 head = word_range.end.to_point(&display_map);
2226 }
2227 } else {
2228 head = position.to_point(&display_map);
2229 }
2230
2231 if head <= original_buffer_range.start {
2232 tail = original_buffer_range.end;
2233 } else {
2234 tail = original_buffer_range.start;
2235 }
2236 }
2237 SelectMode::Line(original_range) => {
2238 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2239
2240 let position = display_map
2241 .clip_point(position, Bias::Left)
2242 .to_point(&display_map);
2243 let line_start = display_map.prev_line_boundary(position).0;
2244 let next_line_start = buffer.clip_point(
2245 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2246 Bias::Left,
2247 );
2248
2249 if line_start < original_range.start {
2250 head = line_start
2251 } else {
2252 head = next_line_start
2253 }
2254
2255 if head <= original_range.start {
2256 tail = original_range.end;
2257 } else {
2258 tail = original_range.start;
2259 }
2260 }
2261 SelectMode::All => {
2262 return;
2263 }
2264 };
2265
2266 if head < tail {
2267 pending.start = buffer.anchor_before(head);
2268 pending.end = buffer.anchor_before(tail);
2269 pending.reversed = true;
2270 } else {
2271 pending.start = buffer.anchor_before(tail);
2272 pending.end = buffer.anchor_before(head);
2273 pending.reversed = false;
2274 }
2275
2276 self.change_selections(None, cx, |s| {
2277 s.set_pending(pending, mode);
2278 });
2279 } else {
2280 log::error!("update_selection dispatched with no pending selection");
2281 return;
2282 }
2283
2284 self.apply_scroll_delta(scroll_delta, cx);
2285 cx.notify();
2286 }
2287
2288 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2289 self.columnar_selection_tail.take();
2290 if self.selections.pending_anchor().is_some() {
2291 let selections = self.selections.all::<usize>(cx);
2292 self.change_selections(None, cx, |s| {
2293 s.select(selections);
2294 s.clear_pending();
2295 });
2296 }
2297 }
2298
2299 fn select_columns(
2300 &mut self,
2301 tail: DisplayPoint,
2302 head: DisplayPoint,
2303 goal_column: u32,
2304 display_map: &DisplaySnapshot,
2305 cx: &mut ViewContext<Self>,
2306 ) {
2307 let start_row = cmp::min(tail.row(), head.row());
2308 let end_row = cmp::max(tail.row(), head.row());
2309 let start_column = cmp::min(tail.column(), goal_column);
2310 let end_column = cmp::max(tail.column(), goal_column);
2311 let reversed = start_column < tail.column();
2312
2313 let selection_ranges = (start_row..=end_row)
2314 .filter_map(|row| {
2315 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2316 let start = display_map
2317 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2318 .to_point(display_map);
2319 let end = display_map
2320 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2321 .to_point(display_map);
2322 if reversed {
2323 Some(end..start)
2324 } else {
2325 Some(start..end)
2326 }
2327 } else {
2328 None
2329 }
2330 })
2331 .collect::<Vec<_>>();
2332
2333 self.change_selections(None, cx, |s| {
2334 s.select_ranges(selection_ranges);
2335 });
2336 cx.notify();
2337 }
2338
2339 pub fn has_pending_nonempty_selection(&self) -> bool {
2340 let pending_nonempty_selection = match self.selections.pending_anchor() {
2341 Some(Selection { start, end, .. }) => start != end,
2342 None => false,
2343 };
2344 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2345 }
2346
2347 pub fn has_pending_selection(&self) -> bool {
2348 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2349 }
2350
2351 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2352 if self.dismiss_menus_and_popups(cx) {
2353 return;
2354 }
2355
2356 if self.mode == EditorMode::Full {
2357 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2358 return;
2359 }
2360 }
2361
2362 cx.propagate();
2363 }
2364
2365 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2366 if self.take_rename(false, cx).is_some() {
2367 return true;
2368 }
2369
2370 if hide_hover(self, cx) {
2371 return true;
2372 }
2373
2374 if self.hide_context_menu(cx).is_some() {
2375 return true;
2376 }
2377
2378 if self.discard_copilot_suggestion(cx) {
2379 return true;
2380 }
2381
2382 if self.snippet_stack.pop().is_some() {
2383 return true;
2384 }
2385
2386 if self.mode == EditorMode::Full {
2387 if self.active_diagnostics.is_some() {
2388 self.dismiss_diagnostics(cx);
2389 return true;
2390 }
2391 }
2392
2393 false
2394 }
2395
2396 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2397 let text: Arc<str> = text.into();
2398
2399 if self.read_only(cx) {
2400 return;
2401 }
2402
2403 let selections = self.selections.all_adjusted(cx);
2404 let mut brace_inserted = false;
2405 let mut edits = Vec::new();
2406 let mut new_selections = Vec::with_capacity(selections.len());
2407 let mut new_autoclose_regions = Vec::new();
2408 let snapshot = self.buffer.read(cx).read(cx);
2409
2410 for (selection, autoclose_region) in
2411 self.selections_with_autoclose_regions(selections, &snapshot)
2412 {
2413 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2414 // Determine if the inserted text matches the opening or closing
2415 // bracket of any of this language's bracket pairs.
2416 let mut bracket_pair = None;
2417 let mut is_bracket_pair_start = false;
2418 if !text.is_empty() {
2419 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2420 // and they are removing the character that triggered IME popup.
2421 for (pair, enabled) in scope.brackets() {
2422 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2423 bracket_pair = Some(pair.clone());
2424 is_bracket_pair_start = true;
2425 break;
2426 } else if pair.end.as_str() == text.as_ref() {
2427 bracket_pair = Some(pair.clone());
2428 break;
2429 }
2430 }
2431 }
2432
2433 if let Some(bracket_pair) = bracket_pair {
2434 if selection.is_empty() {
2435 if is_bracket_pair_start {
2436 let prefix_len = bracket_pair.start.len() - text.len();
2437
2438 // If the inserted text is a suffix of an opening bracket and the
2439 // selection is preceded by the rest of the opening bracket, then
2440 // insert the closing bracket.
2441 let following_text_allows_autoclose = snapshot
2442 .chars_at(selection.start)
2443 .next()
2444 .map_or(true, |c| scope.should_autoclose_before(c));
2445 let preceding_text_matches_prefix = prefix_len == 0
2446 || (selection.start.column >= (prefix_len as u32)
2447 && snapshot.contains_str_at(
2448 Point::new(
2449 selection.start.row,
2450 selection.start.column - (prefix_len as u32),
2451 ),
2452 &bracket_pair.start[..prefix_len],
2453 ));
2454 let autoclose = self.use_autoclose
2455 && snapshot.settings_at(selection.start, cx).use_autoclose;
2456 if autoclose
2457 && following_text_allows_autoclose
2458 && preceding_text_matches_prefix
2459 {
2460 let anchor = snapshot.anchor_before(selection.end);
2461 new_selections.push((selection.map(|_| anchor), text.len()));
2462 new_autoclose_regions.push((
2463 anchor,
2464 text.len(),
2465 selection.id,
2466 bracket_pair.clone(),
2467 ));
2468 edits.push((
2469 selection.range(),
2470 format!("{}{}", text, bracket_pair.end).into(),
2471 ));
2472 brace_inserted = true;
2473 continue;
2474 }
2475 }
2476
2477 if let Some(region) = autoclose_region {
2478 // If the selection is followed by an auto-inserted closing bracket,
2479 // then don't insert that closing bracket again; just move the selection
2480 // past the closing bracket.
2481 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2482 && text.as_ref() == region.pair.end.as_str();
2483 if should_skip {
2484 let anchor = snapshot.anchor_after(selection.end);
2485 new_selections
2486 .push((selection.map(|_| anchor), region.pair.end.len()));
2487 continue;
2488 }
2489 }
2490 }
2491 // If an opening bracket is 1 character long and is typed while
2492 // text is selected, then surround that text with the bracket pair.
2493 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2494 edits.push((selection.start..selection.start, text.clone()));
2495 edits.push((
2496 selection.end..selection.end,
2497 bracket_pair.end.as_str().into(),
2498 ));
2499 brace_inserted = true;
2500 new_selections.push((
2501 Selection {
2502 id: selection.id,
2503 start: snapshot.anchor_after(selection.start),
2504 end: snapshot.anchor_before(selection.end),
2505 reversed: selection.reversed,
2506 goal: selection.goal,
2507 },
2508 0,
2509 ));
2510 continue;
2511 }
2512 }
2513 }
2514
2515 if self.auto_replace_emoji_shortcode
2516 && selection.is_empty()
2517 && text.as_ref().ends_with(':')
2518 {
2519 if let Some(possible_emoji_short_code) =
2520 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2521 {
2522 if !possible_emoji_short_code.is_empty() {
2523 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2524 let emoji_shortcode_start = Point::new(
2525 selection.start.row,
2526 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2527 );
2528
2529 // Remove shortcode from buffer
2530 edits.push((
2531 emoji_shortcode_start..selection.start,
2532 "".to_string().into(),
2533 ));
2534 new_selections.push((
2535 Selection {
2536 id: selection.id,
2537 start: snapshot.anchor_after(emoji_shortcode_start),
2538 end: snapshot.anchor_before(selection.start),
2539 reversed: selection.reversed,
2540 goal: selection.goal,
2541 },
2542 0,
2543 ));
2544
2545 // Insert emoji
2546 let selection_start_anchor = snapshot.anchor_after(selection.start);
2547 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2548 edits.push((selection.start..selection.end, emoji.to_string().into()));
2549
2550 continue;
2551 }
2552 }
2553 }
2554 }
2555
2556 // If not handling any auto-close operation, then just replace the selected
2557 // text with the given input and move the selection to the end of the
2558 // newly inserted text.
2559 let anchor = snapshot.anchor_after(selection.end);
2560 new_selections.push((selection.map(|_| anchor), 0));
2561 edits.push((selection.start..selection.end, text.clone()));
2562 }
2563
2564 drop(snapshot);
2565 self.transact(cx, |this, cx| {
2566 this.buffer.update(cx, |buffer, cx| {
2567 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2568 });
2569
2570 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2571 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2572 let snapshot = this.buffer.read(cx).read(cx);
2573 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2574 .zip(new_selection_deltas)
2575 .map(|(selection, delta)| Selection {
2576 id: selection.id,
2577 start: selection.start + delta,
2578 end: selection.end + delta,
2579 reversed: selection.reversed,
2580 goal: SelectionGoal::None,
2581 })
2582 .collect::<Vec<_>>();
2583
2584 let mut i = 0;
2585 for (position, delta, selection_id, pair) in new_autoclose_regions {
2586 let position = position.to_offset(&snapshot) + delta;
2587 let start = snapshot.anchor_before(position);
2588 let end = snapshot.anchor_after(position);
2589 while let Some(existing_state) = this.autoclose_regions.get(i) {
2590 match existing_state.range.start.cmp(&start, &snapshot) {
2591 Ordering::Less => i += 1,
2592 Ordering::Greater => break,
2593 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2594 Ordering::Less => i += 1,
2595 Ordering::Equal => break,
2596 Ordering::Greater => break,
2597 },
2598 }
2599 }
2600 this.autoclose_regions.insert(
2601 i,
2602 AutocloseRegion {
2603 selection_id,
2604 range: start..end,
2605 pair,
2606 },
2607 );
2608 }
2609
2610 drop(snapshot);
2611 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2612 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2613
2614 if brace_inserted {
2615 // If we inserted a brace while composing text (i.e. typing `"` on a
2616 // Brazilian keyboard), exit the composing state because most likely
2617 // the user wanted to surround the selection.
2618 this.unmark_text(cx);
2619 } else if EditorSettings::get_global(cx).use_on_type_format {
2620 if let Some(on_type_format_task) =
2621 this.trigger_on_type_formatting(text.to_string(), cx)
2622 {
2623 on_type_format_task.detach_and_log_err(cx);
2624 }
2625 }
2626
2627 if had_active_copilot_suggestion {
2628 this.refresh_copilot_suggestions(true, cx);
2629 if !this.has_active_copilot_suggestion(cx) {
2630 this.trigger_completion_on_input(&text, cx);
2631 }
2632 } else {
2633 this.trigger_completion_on_input(&text, cx);
2634 this.refresh_copilot_suggestions(true, cx);
2635 }
2636 });
2637 }
2638
2639 fn find_possible_emoji_shortcode_at_position(
2640 snapshot: &MultiBufferSnapshot,
2641 position: Point,
2642 ) -> Option<String> {
2643 let mut chars = Vec::new();
2644 let mut found_colon = false;
2645 for char in snapshot.reversed_chars_at(position).take(100) {
2646 // Found a possible emoji shortcode in the middle of the buffer
2647 if found_colon && char.is_whitespace() {
2648 chars.reverse();
2649 return Some(chars.iter().collect());
2650 }
2651 if char.is_whitespace() || !char.is_ascii() {
2652 return None;
2653 }
2654 if char == ':' {
2655 found_colon = true;
2656 } else {
2657 chars.push(char);
2658 }
2659 }
2660 // Found a possible emoji shortcode at the beginning of the buffer
2661 chars.reverse();
2662 Some(chars.iter().collect())
2663 }
2664
2665 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2666 self.transact(cx, |this, cx| {
2667 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2668 let selections = this.selections.all::<usize>(cx);
2669 let multi_buffer = this.buffer.read(cx);
2670 let buffer = multi_buffer.snapshot(cx);
2671 selections
2672 .iter()
2673 .map(|selection| {
2674 let start_point = selection.start.to_point(&buffer);
2675 let mut indent = buffer.indent_size_for_line(start_point.row);
2676 indent.len = cmp::min(indent.len, start_point.column);
2677 let start = selection.start;
2678 let end = selection.end;
2679 let is_cursor = start == end;
2680 let language_scope = buffer.language_scope_at(start);
2681 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2682 &language_scope
2683 {
2684 let leading_whitespace_len = buffer
2685 .reversed_chars_at(start)
2686 .take_while(|c| c.is_whitespace() && *c != '\n')
2687 .map(|c| c.len_utf8())
2688 .sum::<usize>();
2689
2690 let trailing_whitespace_len = buffer
2691 .chars_at(end)
2692 .take_while(|c| c.is_whitespace() && *c != '\n')
2693 .map(|c| c.len_utf8())
2694 .sum::<usize>();
2695
2696 let insert_extra_newline =
2697 language.brackets().any(|(pair, enabled)| {
2698 let pair_start = pair.start.trim_end();
2699 let pair_end = pair.end.trim_start();
2700
2701 enabled
2702 && pair.newline
2703 && buffer.contains_str_at(
2704 end + trailing_whitespace_len,
2705 pair_end,
2706 )
2707 && buffer.contains_str_at(
2708 (start - leading_whitespace_len)
2709 .saturating_sub(pair_start.len()),
2710 pair_start,
2711 )
2712 });
2713 // Comment extension on newline is allowed only for cursor selections
2714 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2715 let is_comment_extension_enabled =
2716 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2717 is_cursor && is_comment_extension_enabled
2718 });
2719 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2720 let max_len_of_delimiter =
2721 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2722 let (snapshot, range) =
2723 buffer.buffer_line_for_row(start_point.row)?;
2724
2725 let mut index_of_first_non_whitespace = 0;
2726 let comment_candidate = snapshot
2727 .chars_for_range(range)
2728 .skip_while(|c| {
2729 let should_skip = c.is_whitespace();
2730 if should_skip {
2731 index_of_first_non_whitespace += 1;
2732 }
2733 should_skip
2734 })
2735 .take(max_len_of_delimiter)
2736 .collect::<String>();
2737 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2738 comment_candidate.starts_with(comment_prefix.as_ref())
2739 })?;
2740 let cursor_is_placed_after_comment_marker =
2741 index_of_first_non_whitespace + comment_prefix.len()
2742 <= start_point.column as usize;
2743 if cursor_is_placed_after_comment_marker {
2744 Some(comment_prefix.clone())
2745 } else {
2746 None
2747 }
2748 };
2749 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2750 get_comment_delimiter(delimiters)
2751 } else {
2752 None
2753 };
2754 (comment_delimiter, insert_extra_newline)
2755 } else {
2756 (None, false)
2757 };
2758
2759 let capacity_for_delimiter = comment_delimiter
2760 .as_deref()
2761 .map(str::len)
2762 .unwrap_or_default();
2763 let mut new_text =
2764 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2765 new_text.push_str("\n");
2766 new_text.extend(indent.chars());
2767 if let Some(delimiter) = &comment_delimiter {
2768 new_text.push_str(&delimiter);
2769 }
2770 if insert_extra_newline {
2771 new_text = new_text.repeat(2);
2772 }
2773
2774 let anchor = buffer.anchor_after(end);
2775 let new_selection = selection.map(|_| anchor);
2776 (
2777 (start..end, new_text),
2778 (insert_extra_newline, new_selection),
2779 )
2780 })
2781 .unzip()
2782 };
2783
2784 this.edit_with_autoindent(edits, cx);
2785 let buffer = this.buffer.read(cx).snapshot(cx);
2786 let new_selections = selection_fixup_info
2787 .into_iter()
2788 .map(|(extra_newline_inserted, new_selection)| {
2789 let mut cursor = new_selection.end.to_point(&buffer);
2790 if extra_newline_inserted {
2791 cursor.row -= 1;
2792 cursor.column = buffer.line_len(cursor.row);
2793 }
2794 new_selection.map(|_| cursor)
2795 })
2796 .collect();
2797
2798 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2799 this.refresh_copilot_suggestions(true, cx);
2800 });
2801 }
2802
2803 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2804 let buffer = self.buffer.read(cx);
2805 let snapshot = buffer.snapshot(cx);
2806
2807 let mut edits = Vec::new();
2808 let mut rows = Vec::new();
2809
2810 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2811 let cursor = selection.head();
2812 let row = cursor.row;
2813
2814 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2815
2816 let newline = "\n".to_string();
2817 edits.push((start_of_line..start_of_line, newline));
2818
2819 rows.push(row + rows_inserted as u32);
2820 }
2821
2822 self.transact(cx, |editor, cx| {
2823 editor.edit(edits, cx);
2824
2825 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2826 let mut index = 0;
2827 s.move_cursors_with(|map, _, _| {
2828 let row = rows[index];
2829 index += 1;
2830
2831 let point = Point::new(row, 0);
2832 let boundary = map.next_line_boundary(point).1;
2833 let clipped = map.clip_point(boundary, Bias::Left);
2834
2835 (clipped, SelectionGoal::None)
2836 });
2837 });
2838
2839 let mut indent_edits = Vec::new();
2840 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2841 for row in rows {
2842 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2843 for (row, indent) in indents {
2844 if indent.len == 0 {
2845 continue;
2846 }
2847
2848 let text = match indent.kind {
2849 IndentKind::Space => " ".repeat(indent.len as usize),
2850 IndentKind::Tab => "\t".repeat(indent.len as usize),
2851 };
2852 let point = Point::new(row, 0);
2853 indent_edits.push((point..point, text));
2854 }
2855 }
2856 editor.edit(indent_edits, cx);
2857 });
2858 }
2859
2860 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2861 let buffer = self.buffer.read(cx);
2862 let snapshot = buffer.snapshot(cx);
2863
2864 let mut edits = Vec::new();
2865 let mut rows = Vec::new();
2866 let mut rows_inserted = 0;
2867
2868 for selection in self.selections.all_adjusted(cx) {
2869 let cursor = selection.head();
2870 let row = cursor.row;
2871
2872 let point = Point::new(row + 1, 0);
2873 let start_of_line = snapshot.clip_point(point, Bias::Left);
2874
2875 let newline = "\n".to_string();
2876 edits.push((start_of_line..start_of_line, newline));
2877
2878 rows_inserted += 1;
2879 rows.push(row + rows_inserted);
2880 }
2881
2882 self.transact(cx, |editor, cx| {
2883 editor.edit(edits, cx);
2884
2885 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2886 let mut index = 0;
2887 s.move_cursors_with(|map, _, _| {
2888 let row = rows[index];
2889 index += 1;
2890
2891 let point = Point::new(row, 0);
2892 let boundary = map.next_line_boundary(point).1;
2893 let clipped = map.clip_point(boundary, Bias::Left);
2894
2895 (clipped, SelectionGoal::None)
2896 });
2897 });
2898
2899 let mut indent_edits = Vec::new();
2900 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2901 for row in rows {
2902 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2903 for (row, indent) in indents {
2904 if indent.len == 0 {
2905 continue;
2906 }
2907
2908 let text = match indent.kind {
2909 IndentKind::Space => " ".repeat(indent.len as usize),
2910 IndentKind::Tab => "\t".repeat(indent.len as usize),
2911 };
2912 let point = Point::new(row, 0);
2913 indent_edits.push((point..point, text));
2914 }
2915 }
2916 editor.edit(indent_edits, cx);
2917 });
2918 }
2919
2920 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2921 self.insert_with_autoindent_mode(
2922 text,
2923 Some(AutoindentMode::Block {
2924 original_indent_columns: Vec::new(),
2925 }),
2926 cx,
2927 );
2928 }
2929
2930 fn insert_with_autoindent_mode(
2931 &mut self,
2932 text: &str,
2933 autoindent_mode: Option<AutoindentMode>,
2934 cx: &mut ViewContext<Self>,
2935 ) {
2936 if self.read_only(cx) {
2937 return;
2938 }
2939
2940 let text: Arc<str> = text.into();
2941 self.transact(cx, |this, cx| {
2942 let old_selections = this.selections.all_adjusted(cx);
2943 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2944 let anchors = {
2945 let snapshot = buffer.read(cx);
2946 old_selections
2947 .iter()
2948 .map(|s| {
2949 let anchor = snapshot.anchor_after(s.head());
2950 s.map(|_| anchor)
2951 })
2952 .collect::<Vec<_>>()
2953 };
2954 buffer.edit(
2955 old_selections
2956 .iter()
2957 .map(|s| (s.start..s.end, text.clone())),
2958 autoindent_mode,
2959 cx,
2960 );
2961 anchors
2962 });
2963
2964 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2965 s.select_anchors(selection_anchors);
2966 })
2967 });
2968 }
2969
2970 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2971 if !EditorSettings::get_global(cx).show_completions_on_input {
2972 return;
2973 }
2974
2975 let selection = self.selections.newest_anchor();
2976 if self
2977 .buffer
2978 .read(cx)
2979 .is_completion_trigger(selection.head(), text, cx)
2980 {
2981 self.show_completions(&ShowCompletions, cx);
2982 } else {
2983 self.hide_context_menu(cx);
2984 }
2985 }
2986
2987 /// If any empty selections is touching the start of its innermost containing autoclose
2988 /// region, expand it to select the brackets.
2989 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2990 let selections = self.selections.all::<usize>(cx);
2991 let buffer = self.buffer.read(cx).read(cx);
2992 let mut new_selections = Vec::new();
2993 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2994 if let (Some(region), true) = (region, selection.is_empty()) {
2995 let mut range = region.range.to_offset(&buffer);
2996 if selection.start == range.start {
2997 if range.start >= region.pair.start.len() {
2998 range.start -= region.pair.start.len();
2999 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3000 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3001 range.end += region.pair.end.len();
3002 selection.start = range.start;
3003 selection.end = range.end;
3004 }
3005 }
3006 }
3007 }
3008 }
3009 new_selections.push(selection);
3010 }
3011
3012 drop(buffer);
3013 self.change_selections(None, cx, |selections| selections.select(new_selections));
3014 }
3015
3016 /// Iterate the given selections, and for each one, find the smallest surrounding
3017 /// autoclose region. This uses the ordering of the selections and the autoclose
3018 /// regions to avoid repeated comparisons.
3019 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3020 &'a self,
3021 selections: impl IntoIterator<Item = Selection<D>>,
3022 buffer: &'a MultiBufferSnapshot,
3023 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3024 let mut i = 0;
3025 let mut regions = self.autoclose_regions.as_slice();
3026 selections.into_iter().map(move |selection| {
3027 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3028
3029 let mut enclosing = None;
3030 while let Some(pair_state) = regions.get(i) {
3031 if pair_state.range.end.to_offset(buffer) < range.start {
3032 regions = ®ions[i + 1..];
3033 i = 0;
3034 } else if pair_state.range.start.to_offset(buffer) > range.end {
3035 break;
3036 } else {
3037 if pair_state.selection_id == selection.id {
3038 enclosing = Some(pair_state);
3039 }
3040 i += 1;
3041 }
3042 }
3043
3044 (selection.clone(), enclosing)
3045 })
3046 }
3047
3048 /// Remove any autoclose regions that no longer contain their selection.
3049 fn invalidate_autoclose_regions(
3050 &mut self,
3051 mut selections: &[Selection<Anchor>],
3052 buffer: &MultiBufferSnapshot,
3053 ) {
3054 self.autoclose_regions.retain(|state| {
3055 let mut i = 0;
3056 while let Some(selection) = selections.get(i) {
3057 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3058 selections = &selections[1..];
3059 continue;
3060 }
3061 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3062 break;
3063 }
3064 if selection.id == state.selection_id {
3065 return true;
3066 } else {
3067 i += 1;
3068 }
3069 }
3070 false
3071 });
3072 }
3073
3074 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3075 let offset = position.to_offset(buffer);
3076 let (word_range, kind) = buffer.surrounding_word(offset);
3077 if offset > word_range.start && kind == Some(CharKind::Word) {
3078 Some(
3079 buffer
3080 .text_for_range(word_range.start..offset)
3081 .collect::<String>(),
3082 )
3083 } else {
3084 None
3085 }
3086 }
3087
3088 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3089 self.refresh_inlay_hints(
3090 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3091 cx,
3092 );
3093 }
3094
3095 pub fn inlay_hints_enabled(&self) -> bool {
3096 self.inlay_hint_cache.enabled
3097 }
3098
3099 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3100 if self.project.is_none() || self.mode != EditorMode::Full {
3101 return;
3102 }
3103
3104 let reason_description = reason.description();
3105 let ignore_debounce = matches!(
3106 reason,
3107 InlayHintRefreshReason::SettingsChange(_)
3108 | InlayHintRefreshReason::Toggle(_)
3109 | InlayHintRefreshReason::ExcerptsRemoved(_)
3110 );
3111 let (invalidate_cache, required_languages) = match reason {
3112 InlayHintRefreshReason::Toggle(enabled) => {
3113 self.inlay_hint_cache.enabled = enabled;
3114 if enabled {
3115 (InvalidationStrategy::RefreshRequested, None)
3116 } else {
3117 self.inlay_hint_cache.clear();
3118 self.splice_inlays(
3119 self.visible_inlay_hints(cx)
3120 .iter()
3121 .map(|inlay| inlay.id)
3122 .collect(),
3123 Vec::new(),
3124 cx,
3125 );
3126 return;
3127 }
3128 }
3129 InlayHintRefreshReason::SettingsChange(new_settings) => {
3130 match self.inlay_hint_cache.update_settings(
3131 &self.buffer,
3132 new_settings,
3133 self.visible_inlay_hints(cx),
3134 cx,
3135 ) {
3136 ControlFlow::Break(Some(InlaySplice {
3137 to_remove,
3138 to_insert,
3139 })) => {
3140 self.splice_inlays(to_remove, to_insert, cx);
3141 return;
3142 }
3143 ControlFlow::Break(None) => return,
3144 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3145 }
3146 }
3147 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3148 if let Some(InlaySplice {
3149 to_remove,
3150 to_insert,
3151 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3152 {
3153 self.splice_inlays(to_remove, to_insert, cx);
3154 }
3155 return;
3156 }
3157 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3158 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3159 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3160 }
3161 InlayHintRefreshReason::RefreshRequested => {
3162 (InvalidationStrategy::RefreshRequested, None)
3163 }
3164 };
3165
3166 if let Some(InlaySplice {
3167 to_remove,
3168 to_insert,
3169 }) = self.inlay_hint_cache.spawn_hint_refresh(
3170 reason_description,
3171 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3172 invalidate_cache,
3173 ignore_debounce,
3174 cx,
3175 ) {
3176 self.splice_inlays(to_remove, to_insert, cx);
3177 }
3178 }
3179
3180 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3181 self.display_map
3182 .read(cx)
3183 .current_inlays()
3184 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3185 .cloned()
3186 .collect()
3187 }
3188
3189 pub fn excerpts_for_inlay_hints_query(
3190 &self,
3191 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3192 cx: &mut ViewContext<Editor>,
3193 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3194 let Some(project) = self.project.as_ref() else {
3195 return HashMap::default();
3196 };
3197 let project = project.read(cx);
3198 let multi_buffer = self.buffer().read(cx);
3199 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3200 let multi_buffer_visible_start = self
3201 .scroll_manager
3202 .anchor()
3203 .anchor
3204 .to_point(&multi_buffer_snapshot);
3205 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3206 multi_buffer_visible_start
3207 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3208 Bias::Left,
3209 );
3210 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3211 multi_buffer
3212 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3213 .into_iter()
3214 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3215 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3216 let buffer = buffer_handle.read(cx);
3217 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3218 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3219 let worktree_entry = buffer_worktree
3220 .read(cx)
3221 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3222 if worktree_entry.is_ignored {
3223 return None;
3224 }
3225
3226 let language = buffer.language()?;
3227 if let Some(restrict_to_languages) = restrict_to_languages {
3228 if !restrict_to_languages.contains(language) {
3229 return None;
3230 }
3231 }
3232 Some((
3233 excerpt_id,
3234 (
3235 buffer_handle,
3236 buffer.version().clone(),
3237 excerpt_visible_range,
3238 ),
3239 ))
3240 })
3241 .collect()
3242 }
3243
3244 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3245 TextLayoutDetails {
3246 text_system: cx.text_system().clone(),
3247 editor_style: self.style.clone().unwrap(),
3248 rem_size: cx.rem_size(),
3249 scroll_anchor: self.scroll_manager.anchor(),
3250 visible_rows: self.visible_line_count(),
3251 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3252 }
3253 }
3254
3255 fn splice_inlays(
3256 &self,
3257 to_remove: Vec<InlayId>,
3258 to_insert: Vec<Inlay>,
3259 cx: &mut ViewContext<Self>,
3260 ) {
3261 self.display_map.update(cx, |display_map, cx| {
3262 display_map.splice_inlays(to_remove, to_insert, cx);
3263 });
3264 cx.notify();
3265 }
3266
3267 fn trigger_on_type_formatting(
3268 &self,
3269 input: String,
3270 cx: &mut ViewContext<Self>,
3271 ) -> Option<Task<Result<()>>> {
3272 if input.len() != 1 {
3273 return None;
3274 }
3275
3276 let project = self.project.as_ref()?;
3277 let position = self.selections.newest_anchor().head();
3278 let (buffer, buffer_position) = self
3279 .buffer
3280 .read(cx)
3281 .text_anchor_for_position(position, cx)?;
3282
3283 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3284 // hence we do LSP request & edit on host side only — add formats to host's history.
3285 let push_to_lsp_host_history = true;
3286 // If this is not the host, append its history with new edits.
3287 let push_to_client_history = project.read(cx).is_remote();
3288
3289 let on_type_formatting = project.update(cx, |project, cx| {
3290 project.on_type_format(
3291 buffer.clone(),
3292 buffer_position,
3293 input,
3294 push_to_lsp_host_history,
3295 cx,
3296 )
3297 });
3298 Some(cx.spawn(|editor, mut cx| async move {
3299 if let Some(transaction) = on_type_formatting.await? {
3300 if push_to_client_history {
3301 buffer
3302 .update(&mut cx, |buffer, _| {
3303 buffer.push_transaction(transaction, Instant::now());
3304 })
3305 .ok();
3306 }
3307 editor.update(&mut cx, |editor, cx| {
3308 editor.refresh_document_highlights(cx);
3309 })?;
3310 }
3311 Ok(())
3312 }))
3313 }
3314
3315 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3316 if self.pending_rename.is_some() {
3317 return;
3318 }
3319
3320 let Some(provider) = self.completion_provider.as_ref() else {
3321 return;
3322 };
3323
3324 let position = self.selections.newest_anchor().head();
3325 let (buffer, buffer_position) =
3326 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3327 output
3328 } else {
3329 return;
3330 };
3331
3332 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3333 let completions = provider.completions(&buffer, buffer_position, cx);
3334
3335 let id = post_inc(&mut self.next_completion_id);
3336 let task = cx.spawn(|this, mut cx| {
3337 async move {
3338 let completions = completions.await.log_err();
3339 let menu = if let Some(completions) = completions {
3340 let mut menu = CompletionsMenu {
3341 id,
3342 initial_position: position,
3343 match_candidates: completions
3344 .iter()
3345 .enumerate()
3346 .map(|(id, completion)| {
3347 StringMatchCandidate::new(
3348 id,
3349 completion.label.text[completion.label.filter_range.clone()]
3350 .into(),
3351 )
3352 })
3353 .collect(),
3354 buffer,
3355 completions: Arc::new(RwLock::new(completions.into())),
3356 matches: Vec::new().into(),
3357 selected_item: 0,
3358 scroll_handle: UniformListScrollHandle::new(),
3359 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3360 DebouncedDelay::new(),
3361 )),
3362 };
3363 menu.filter(query.as_deref(), cx.background_executor().clone())
3364 .await;
3365
3366 if menu.matches.is_empty() {
3367 None
3368 } else {
3369 this.update(&mut cx, |editor, cx| {
3370 let completions = menu.completions.clone();
3371 let matches = menu.matches.clone();
3372
3373 let delay_ms = EditorSettings::get_global(cx)
3374 .completion_documentation_secondary_query_debounce;
3375 let delay = Duration::from_millis(delay_ms);
3376
3377 editor
3378 .completion_documentation_pre_resolve_debounce
3379 .fire_new(delay, cx, |editor, cx| {
3380 CompletionsMenu::pre_resolve_completion_documentation(
3381 completions,
3382 matches,
3383 editor,
3384 cx,
3385 )
3386 });
3387 })
3388 .ok();
3389 Some(menu)
3390 }
3391 } else {
3392 None
3393 };
3394
3395 this.update(&mut cx, |this, cx| {
3396 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3397
3398 let mut context_menu = this.context_menu.write();
3399 match context_menu.as_ref() {
3400 None => {}
3401
3402 Some(ContextMenu::Completions(prev_menu)) => {
3403 if prev_menu.id > id {
3404 return;
3405 }
3406 }
3407
3408 _ => return,
3409 }
3410
3411 if this.focus_handle.is_focused(cx) && menu.is_some() {
3412 let menu = menu.unwrap();
3413 *context_menu = Some(ContextMenu::Completions(menu));
3414 drop(context_menu);
3415 this.discard_copilot_suggestion(cx);
3416 cx.notify();
3417 } else if this.completion_tasks.len() <= 1 {
3418 // If there are no more completion tasks and the last menu was
3419 // empty, we should hide it. If it was already hidden, we should
3420 // also show the copilot suggestion when available.
3421 drop(context_menu);
3422 if this.hide_context_menu(cx).is_none() {
3423 this.update_visible_copilot_suggestion(cx);
3424 }
3425 }
3426 })?;
3427
3428 Ok::<_, anyhow::Error>(())
3429 }
3430 .log_err()
3431 });
3432
3433 self.completion_tasks.push((id, task));
3434 }
3435
3436 pub fn confirm_completion(
3437 &mut self,
3438 action: &ConfirmCompletion,
3439 cx: &mut ViewContext<Self>,
3440 ) -> Option<Task<Result<()>>> {
3441 use language::ToOffset as _;
3442
3443 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3444 menu
3445 } else {
3446 return None;
3447 };
3448
3449 let mat = completions_menu
3450 .matches
3451 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3452 let buffer_handle = completions_menu.buffer;
3453 let completions = completions_menu.completions.read();
3454 let completion = completions.get(mat.candidate_id)?;
3455 cx.stop_propagation();
3456
3457 let snippet;
3458 let text;
3459 if completion.is_snippet() {
3460 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3461 text = snippet.as_ref().unwrap().text.clone();
3462 } else {
3463 snippet = None;
3464 text = completion.new_text.clone();
3465 };
3466 let selections = self.selections.all::<usize>(cx);
3467 let buffer = buffer_handle.read(cx);
3468 let old_range = completion.old_range.to_offset(buffer);
3469 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3470
3471 let newest_selection = self.selections.newest_anchor();
3472 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3473 return None;
3474 }
3475
3476 let lookbehind = newest_selection
3477 .start
3478 .text_anchor
3479 .to_offset(buffer)
3480 .saturating_sub(old_range.start);
3481 let lookahead = old_range
3482 .end
3483 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3484 let mut common_prefix_len = old_text
3485 .bytes()
3486 .zip(text.bytes())
3487 .take_while(|(a, b)| a == b)
3488 .count();
3489
3490 let snapshot = self.buffer.read(cx).snapshot(cx);
3491 let mut range_to_replace: Option<Range<isize>> = None;
3492 let mut ranges = Vec::new();
3493 for selection in &selections {
3494 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3495 let start = selection.start.saturating_sub(lookbehind);
3496 let end = selection.end + lookahead;
3497 if selection.id == newest_selection.id {
3498 range_to_replace = Some(
3499 ((start + common_prefix_len) as isize - selection.start as isize)
3500 ..(end as isize - selection.start as isize),
3501 );
3502 }
3503 ranges.push(start + common_prefix_len..end);
3504 } else {
3505 common_prefix_len = 0;
3506 ranges.clear();
3507 ranges.extend(selections.iter().map(|s| {
3508 if s.id == newest_selection.id {
3509 range_to_replace = Some(
3510 old_range.start.to_offset_utf16(&snapshot).0 as isize
3511 - selection.start as isize
3512 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3513 - selection.start as isize,
3514 );
3515 old_range.clone()
3516 } else {
3517 s.start..s.end
3518 }
3519 }));
3520 break;
3521 }
3522 }
3523 let text = &text[common_prefix_len..];
3524
3525 cx.emit(EditorEvent::InputHandled {
3526 utf16_range_to_replace: range_to_replace,
3527 text: text.into(),
3528 });
3529
3530 self.transact(cx, |this, cx| {
3531 if let Some(mut snippet) = snippet {
3532 snippet.text = text.to_string();
3533 for tabstop in snippet.tabstops.iter_mut().flatten() {
3534 tabstop.start -= common_prefix_len as isize;
3535 tabstop.end -= common_prefix_len as isize;
3536 }
3537
3538 this.insert_snippet(&ranges, snippet, cx).log_err();
3539 } else {
3540 this.buffer.update(cx, |buffer, cx| {
3541 buffer.edit(
3542 ranges.iter().map(|range| (range.clone(), text)),
3543 this.autoindent_mode.clone(),
3544 cx,
3545 );
3546 });
3547 }
3548
3549 this.refresh_copilot_suggestions(true, cx);
3550 });
3551
3552 let provider = self.completion_provider.as_ref()?;
3553 let apply_edits = provider.apply_additional_edits_for_completion(
3554 buffer_handle,
3555 completion.clone(),
3556 true,
3557 cx,
3558 );
3559 Some(cx.foreground_executor().spawn(async move {
3560 apply_edits.await?;
3561 Ok(())
3562 }))
3563 }
3564
3565 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3566 let mut context_menu = self.context_menu.write();
3567 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3568 *context_menu = None;
3569 cx.notify();
3570 return;
3571 }
3572 drop(context_menu);
3573
3574 let deployed_from_indicator = action.deployed_from_indicator;
3575 let mut task = self.code_actions_task.take();
3576 cx.spawn(|this, mut cx| async move {
3577 while let Some(prev_task) = task {
3578 prev_task.await;
3579 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3580 }
3581
3582 this.update(&mut cx, |this, cx| {
3583 if this.focus_handle.is_focused(cx) {
3584 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3585 this.completion_tasks.clear();
3586 this.discard_copilot_suggestion(cx);
3587 *this.context_menu.write() =
3588 Some(ContextMenu::CodeActions(CodeActionsMenu {
3589 buffer,
3590 actions,
3591 selected_item: Default::default(),
3592 scroll_handle: UniformListScrollHandle::default(),
3593 deployed_from_indicator,
3594 }));
3595 cx.notify();
3596 }
3597 }
3598 })?;
3599
3600 Ok::<_, anyhow::Error>(())
3601 })
3602 .detach_and_log_err(cx);
3603 }
3604
3605 pub fn confirm_code_action(
3606 &mut self,
3607 action: &ConfirmCodeAction,
3608 cx: &mut ViewContext<Self>,
3609 ) -> Option<Task<Result<()>>> {
3610 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3611 menu
3612 } else {
3613 return None;
3614 };
3615 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3616 let action = actions_menu.actions.get(action_ix)?.clone();
3617 let title = action.lsp_action.title.clone();
3618 let buffer = actions_menu.buffer;
3619 let workspace = self.workspace()?;
3620
3621 let apply_code_actions = workspace
3622 .read(cx)
3623 .project()
3624 .clone()
3625 .update(cx, |project, cx| {
3626 project.apply_code_action(buffer, action, true, cx)
3627 });
3628 let workspace = workspace.downgrade();
3629 Some(cx.spawn(|editor, cx| async move {
3630 let project_transaction = apply_code_actions.await?;
3631 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3632 }))
3633 }
3634
3635 async fn open_project_transaction(
3636 this: &WeakView<Editor>,
3637 workspace: WeakView<Workspace>,
3638 transaction: ProjectTransaction,
3639 title: String,
3640 mut cx: AsyncWindowContext,
3641 ) -> Result<()> {
3642 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3643
3644 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3645 cx.update(|cx| {
3646 entries.sort_unstable_by_key(|(buffer, _)| {
3647 buffer.read(cx).file().map(|f| f.path().clone())
3648 });
3649 })?;
3650
3651 // If the project transaction's edits are all contained within this editor, then
3652 // avoid opening a new editor to display them.
3653
3654 if let Some((buffer, transaction)) = entries.first() {
3655 if entries.len() == 1 {
3656 let excerpt = this.update(&mut cx, |editor, cx| {
3657 editor
3658 .buffer()
3659 .read(cx)
3660 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3661 })?;
3662 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3663 if excerpted_buffer == *buffer {
3664 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3665 let excerpt_range = excerpt_range.to_offset(buffer);
3666 buffer
3667 .edited_ranges_for_transaction::<usize>(transaction)
3668 .all(|range| {
3669 excerpt_range.start <= range.start
3670 && excerpt_range.end >= range.end
3671 })
3672 })?;
3673
3674 if all_edits_within_excerpt {
3675 return Ok(());
3676 }
3677 }
3678 }
3679 }
3680 } else {
3681 return Ok(());
3682 }
3683
3684 let mut ranges_to_highlight = Vec::new();
3685 let excerpt_buffer = cx.new_model(|cx| {
3686 let mut multibuffer =
3687 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3688 for (buffer_handle, transaction) in &entries {
3689 let buffer = buffer_handle.read(cx);
3690 ranges_to_highlight.extend(
3691 multibuffer.push_excerpts_with_context_lines(
3692 buffer_handle.clone(),
3693 buffer
3694 .edited_ranges_for_transaction::<usize>(transaction)
3695 .collect(),
3696 1,
3697 cx,
3698 ),
3699 );
3700 }
3701 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3702 multibuffer
3703 })?;
3704
3705 workspace.update(&mut cx, |workspace, cx| {
3706 let project = workspace.project().clone();
3707 let editor =
3708 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3709 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3710 editor.update(cx, |editor, cx| {
3711 editor.highlight_background::<Self>(
3712 ranges_to_highlight,
3713 |theme| theme.editor_highlighted_line_background,
3714 cx,
3715 );
3716 });
3717 })?;
3718
3719 Ok(())
3720 }
3721
3722 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3723 let project = self.project.clone()?;
3724 let buffer = self.buffer.read(cx);
3725 let newest_selection = self.selections.newest_anchor().clone();
3726 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3727 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3728 if start_buffer != end_buffer {
3729 return None;
3730 }
3731
3732 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3733 cx.background_executor()
3734 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3735 .await;
3736
3737 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3738 project.code_actions(&start_buffer, start..end, cx)
3739 }) {
3740 code_actions.await.log_err()
3741 } else {
3742 None
3743 };
3744
3745 this.update(&mut cx, |this, cx| {
3746 this.available_code_actions = actions.and_then(|actions| {
3747 if actions.is_empty() {
3748 None
3749 } else {
3750 Some((start_buffer, actions.into()))
3751 }
3752 });
3753 cx.notify();
3754 })
3755 .log_err();
3756 }));
3757 None
3758 }
3759
3760 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3761 if self.pending_rename.is_some() {
3762 return None;
3763 }
3764
3765 let project = self.project.clone()?;
3766 let buffer = self.buffer.read(cx);
3767 let newest_selection = self.selections.newest_anchor().clone();
3768 let cursor_position = newest_selection.head();
3769 let (cursor_buffer, cursor_buffer_position) =
3770 buffer.text_anchor_for_position(cursor_position, cx)?;
3771 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3772 if cursor_buffer != tail_buffer {
3773 return None;
3774 }
3775
3776 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3777 cx.background_executor()
3778 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3779 .await;
3780
3781 let highlights = if let Some(highlights) = project
3782 .update(&mut cx, |project, cx| {
3783 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3784 })
3785 .log_err()
3786 {
3787 highlights.await.log_err()
3788 } else {
3789 None
3790 };
3791
3792 if let Some(highlights) = highlights {
3793 this.update(&mut cx, |this, cx| {
3794 if this.pending_rename.is_some() {
3795 return;
3796 }
3797
3798 let buffer_id = cursor_position.buffer_id;
3799 let buffer = this.buffer.read(cx);
3800 if !buffer
3801 .text_anchor_for_position(cursor_position, cx)
3802 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3803 {
3804 return;
3805 }
3806
3807 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3808 let mut write_ranges = Vec::new();
3809 let mut read_ranges = Vec::new();
3810 for highlight in highlights {
3811 for (excerpt_id, excerpt_range) in
3812 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3813 {
3814 let start = highlight
3815 .range
3816 .start
3817 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3818 let end = highlight
3819 .range
3820 .end
3821 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3822 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3823 continue;
3824 }
3825
3826 let range = Anchor {
3827 buffer_id,
3828 excerpt_id: excerpt_id,
3829 text_anchor: start,
3830 }..Anchor {
3831 buffer_id,
3832 excerpt_id,
3833 text_anchor: end,
3834 };
3835 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3836 write_ranges.push(range);
3837 } else {
3838 read_ranges.push(range);
3839 }
3840 }
3841 }
3842
3843 this.highlight_background::<DocumentHighlightRead>(
3844 read_ranges,
3845 |theme| theme.editor_document_highlight_read_background,
3846 cx,
3847 );
3848 this.highlight_background::<DocumentHighlightWrite>(
3849 write_ranges,
3850 |theme| theme.editor_document_highlight_write_background,
3851 cx,
3852 );
3853 cx.notify();
3854 })
3855 .log_err();
3856 }
3857 }));
3858 None
3859 }
3860
3861 fn refresh_copilot_suggestions(
3862 &mut self,
3863 debounce: bool,
3864 cx: &mut ViewContext<Self>,
3865 ) -> Option<()> {
3866 let copilot = Copilot::global(cx)?;
3867 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3868 self.clear_copilot_suggestions(cx);
3869 return None;
3870 }
3871 self.update_visible_copilot_suggestion(cx);
3872
3873 let snapshot = self.buffer.read(cx).snapshot(cx);
3874 let cursor = self.selections.newest_anchor().head();
3875 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3876 self.clear_copilot_suggestions(cx);
3877 return None;
3878 }
3879
3880 let (buffer, buffer_position) =
3881 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3882 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3883 if debounce {
3884 cx.background_executor()
3885 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3886 .await;
3887 }
3888
3889 let completions = copilot
3890 .update(&mut cx, |copilot, cx| {
3891 copilot.completions(&buffer, buffer_position, cx)
3892 })
3893 .log_err()
3894 .unwrap_or(Task::ready(Ok(Vec::new())))
3895 .await
3896 .log_err()
3897 .into_iter()
3898 .flatten()
3899 .collect_vec();
3900
3901 this.update(&mut cx, |this, cx| {
3902 if !completions.is_empty() {
3903 this.copilot_state.cycled = false;
3904 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3905 this.copilot_state.completions.clear();
3906 this.copilot_state.active_completion_index = 0;
3907 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3908 for completion in completions {
3909 this.copilot_state.push_completion(completion);
3910 }
3911 this.update_visible_copilot_suggestion(cx);
3912 }
3913 })
3914 .log_err()?;
3915 Some(())
3916 });
3917
3918 Some(())
3919 }
3920
3921 fn cycle_copilot_suggestions(
3922 &mut self,
3923 direction: Direction,
3924 cx: &mut ViewContext<Self>,
3925 ) -> Option<()> {
3926 let copilot = Copilot::global(cx)?;
3927 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3928 return None;
3929 }
3930
3931 if self.copilot_state.cycled {
3932 self.copilot_state.cycle_completions(direction);
3933 self.update_visible_copilot_suggestion(cx);
3934 } else {
3935 let cursor = self.selections.newest_anchor().head();
3936 let (buffer, buffer_position) =
3937 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3938 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3939 let completions = copilot
3940 .update(&mut cx, |copilot, cx| {
3941 copilot.completions_cycling(&buffer, buffer_position, cx)
3942 })
3943 .log_err()?
3944 .await;
3945
3946 this.update(&mut cx, |this, cx| {
3947 this.copilot_state.cycled = true;
3948 for completion in completions.log_err().into_iter().flatten() {
3949 this.copilot_state.push_completion(completion);
3950 }
3951 this.copilot_state.cycle_completions(direction);
3952 this.update_visible_copilot_suggestion(cx);
3953 })
3954 .log_err()?;
3955
3956 Some(())
3957 });
3958 }
3959
3960 Some(())
3961 }
3962
3963 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3964 if !self.has_active_copilot_suggestion(cx) {
3965 self.refresh_copilot_suggestions(false, cx);
3966 return;
3967 }
3968
3969 self.update_visible_copilot_suggestion(cx);
3970 }
3971
3972 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3973 self.show_cursor_names(cx);
3974 }
3975
3976 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3977 self.show_cursor_names = true;
3978 cx.notify();
3979 cx.spawn(|this, mut cx| async move {
3980 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3981 this.update(&mut cx, |this, cx| {
3982 this.show_cursor_names = false;
3983 cx.notify()
3984 })
3985 .ok()
3986 })
3987 .detach();
3988 }
3989
3990 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3991 if self.has_active_copilot_suggestion(cx) {
3992 self.cycle_copilot_suggestions(Direction::Next, cx);
3993 } else {
3994 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3995 if is_copilot_disabled {
3996 cx.propagate();
3997 }
3998 }
3999 }
4000
4001 fn previous_copilot_suggestion(
4002 &mut self,
4003 _: &copilot::PreviousSuggestion,
4004 cx: &mut ViewContext<Self>,
4005 ) {
4006 if self.has_active_copilot_suggestion(cx) {
4007 self.cycle_copilot_suggestions(Direction::Prev, cx);
4008 } else {
4009 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4010 if is_copilot_disabled {
4011 cx.propagate();
4012 }
4013 }
4014 }
4015
4016 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4017 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4018 if let Some((copilot, completion)) =
4019 Copilot::global(cx).zip(self.copilot_state.active_completion())
4020 {
4021 copilot
4022 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4023 .detach_and_log_err(cx);
4024
4025 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4026 }
4027 cx.emit(EditorEvent::InputHandled {
4028 utf16_range_to_replace: None,
4029 text: suggestion.text.to_string().into(),
4030 });
4031 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4032 cx.notify();
4033 true
4034 } else {
4035 false
4036 }
4037 }
4038
4039 fn accept_partial_copilot_suggestion(
4040 &mut self,
4041 _: &AcceptPartialCopilotSuggestion,
4042 cx: &mut ViewContext<Self>,
4043 ) {
4044 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4045 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4046 let mut partial_suggestion = suggestion
4047 .text
4048 .chars()
4049 .by_ref()
4050 .take_while(|c| c.is_alphabetic())
4051 .collect::<String>();
4052 if partial_suggestion.is_empty() {
4053 partial_suggestion = suggestion
4054 .text
4055 .chars()
4056 .by_ref()
4057 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4058 .collect::<String>();
4059 }
4060
4061 cx.emit(EditorEvent::InputHandled {
4062 utf16_range_to_replace: None,
4063 text: partial_suggestion.clone().into(),
4064 });
4065 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4066 self.refresh_copilot_suggestions(true, cx);
4067 cx.notify();
4068 }
4069 }
4070 }
4071
4072 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4073 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4074 if let Some(copilot) = Copilot::global(cx) {
4075 copilot
4076 .update(cx, |copilot, cx| {
4077 copilot.discard_completions(&self.copilot_state.completions, cx)
4078 })
4079 .detach_and_log_err(cx);
4080
4081 self.report_copilot_event(None, false, cx)
4082 }
4083
4084 self.display_map.update(cx, |map, cx| {
4085 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4086 });
4087 cx.notify();
4088 true
4089 } else {
4090 false
4091 }
4092 }
4093
4094 fn is_copilot_enabled_at(
4095 &self,
4096 location: Anchor,
4097 snapshot: &MultiBufferSnapshot,
4098 cx: &mut ViewContext<Self>,
4099 ) -> bool {
4100 let file = snapshot.file_at(location);
4101 let language = snapshot.language_at(location);
4102 let settings = all_language_settings(file, cx);
4103 self.show_copilot_suggestions
4104 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4105 }
4106
4107 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4108 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4109 let buffer = self.buffer.read(cx).read(cx);
4110 suggestion.position.is_valid(&buffer)
4111 } else {
4112 false
4113 }
4114 }
4115
4116 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4117 let suggestion = self.copilot_state.suggestion.take()?;
4118 self.display_map.update(cx, |map, cx| {
4119 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4120 });
4121 let buffer = self.buffer.read(cx).read(cx);
4122
4123 if suggestion.position.is_valid(&buffer) {
4124 Some(suggestion)
4125 } else {
4126 None
4127 }
4128 }
4129
4130 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4131 let snapshot = self.buffer.read(cx).snapshot(cx);
4132 let selection = self.selections.newest_anchor();
4133 let cursor = selection.head();
4134
4135 if self.context_menu.read().is_some()
4136 || !self.completion_tasks.is_empty()
4137 || selection.start != selection.end
4138 {
4139 self.discard_copilot_suggestion(cx);
4140 } else if let Some(text) = self
4141 .copilot_state
4142 .text_for_active_completion(cursor, &snapshot)
4143 {
4144 let text = Rope::from(text);
4145 let mut to_remove = Vec::new();
4146 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4147 to_remove.push(suggestion.id);
4148 }
4149
4150 let suggestion_inlay =
4151 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4152 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4153 self.display_map.update(cx, move |map, cx| {
4154 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4155 });
4156 cx.notify();
4157 } else {
4158 self.discard_copilot_suggestion(cx);
4159 }
4160 }
4161
4162 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4163 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4164 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4165 }
4166 self.copilot_state = CopilotState::default();
4167 self.discard_copilot_suggestion(cx);
4168 }
4169
4170 pub fn render_code_actions_indicator(
4171 &self,
4172 _style: &EditorStyle,
4173 is_active: bool,
4174 cx: &mut ViewContext<Self>,
4175 ) -> Option<IconButton> {
4176 if self.available_code_actions.is_some() {
4177 Some(
4178 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4179 .icon_size(IconSize::XSmall)
4180 .size(ui::ButtonSize::None)
4181 .icon_color(Color::Muted)
4182 .selected(is_active)
4183 .on_click(cx.listener(|editor, _e, cx| {
4184 editor.toggle_code_actions(
4185 &ToggleCodeActions {
4186 deployed_from_indicator: true,
4187 },
4188 cx,
4189 );
4190 })),
4191 )
4192 } else {
4193 None
4194 }
4195 }
4196
4197 pub fn render_fold_indicators(
4198 &self,
4199 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4200 _style: &EditorStyle,
4201 gutter_hovered: bool,
4202 _line_height: Pixels,
4203 _gutter_margin: Pixels,
4204 editor_view: View<Editor>,
4205 ) -> Vec<Option<IconButton>> {
4206 fold_data
4207 .iter()
4208 .enumerate()
4209 .map(|(ix, fold_data)| {
4210 fold_data
4211 .map(|(fold_status, buffer_row, active)| {
4212 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4213 IconButton::new(ix, ui::IconName::ChevronDown)
4214 .on_click({
4215 let view = editor_view.clone();
4216 move |_e, cx| {
4217 view.update(cx, |editor, cx| match fold_status {
4218 FoldStatus::Folded => {
4219 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4220 }
4221 FoldStatus::Foldable => {
4222 editor.fold_at(&FoldAt { buffer_row }, cx);
4223 }
4224 })
4225 }
4226 })
4227 .icon_color(ui::Color::Muted)
4228 .icon_size(ui::IconSize::Small)
4229 .selected(fold_status == FoldStatus::Folded)
4230 .selected_icon(ui::IconName::ChevronRight)
4231 .size(ui::ButtonSize::None)
4232 })
4233 })
4234 .flatten()
4235 })
4236 .collect()
4237 }
4238
4239 pub fn context_menu_visible(&self) -> bool {
4240 self.context_menu
4241 .read()
4242 .as_ref()
4243 .map_or(false, |menu| menu.visible())
4244 }
4245
4246 pub fn render_context_menu(
4247 &self,
4248 cursor_position: DisplayPoint,
4249 style: &EditorStyle,
4250 max_height: Pixels,
4251 cx: &mut ViewContext<Editor>,
4252 ) -> Option<(DisplayPoint, AnyElement)> {
4253 self.context_menu.read().as_ref().map(|menu| {
4254 menu.render(
4255 cursor_position,
4256 style,
4257 max_height,
4258 self.workspace.as_ref().map(|(w, _)| w.clone()),
4259 cx,
4260 )
4261 })
4262 }
4263
4264 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4265 cx.notify();
4266 self.completion_tasks.clear();
4267 let context_menu = self.context_menu.write().take();
4268 if context_menu.is_some() {
4269 self.update_visible_copilot_suggestion(cx);
4270 }
4271 context_menu
4272 }
4273
4274 pub fn insert_snippet(
4275 &mut self,
4276 insertion_ranges: &[Range<usize>],
4277 snippet: Snippet,
4278 cx: &mut ViewContext<Self>,
4279 ) -> Result<()> {
4280 let tabstops = self.buffer.update(cx, |buffer, cx| {
4281 let snippet_text: Arc<str> = snippet.text.clone().into();
4282 buffer.edit(
4283 insertion_ranges
4284 .iter()
4285 .cloned()
4286 .map(|range| (range, snippet_text.clone())),
4287 Some(AutoindentMode::EachLine),
4288 cx,
4289 );
4290
4291 let snapshot = &*buffer.read(cx);
4292 let snippet = &snippet;
4293 snippet
4294 .tabstops
4295 .iter()
4296 .map(|tabstop| {
4297 let mut tabstop_ranges = tabstop
4298 .iter()
4299 .flat_map(|tabstop_range| {
4300 let mut delta = 0_isize;
4301 insertion_ranges.iter().map(move |insertion_range| {
4302 let insertion_start = insertion_range.start as isize + delta;
4303 delta +=
4304 snippet.text.len() as isize - insertion_range.len() as isize;
4305
4306 let start = snapshot.anchor_before(
4307 (insertion_start + tabstop_range.start) as usize,
4308 );
4309 let end = snapshot
4310 .anchor_after((insertion_start + tabstop_range.end) as usize);
4311 start..end
4312 })
4313 })
4314 .collect::<Vec<_>>();
4315 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4316 tabstop_ranges
4317 })
4318 .collect::<Vec<_>>()
4319 });
4320
4321 if let Some(tabstop) = tabstops.first() {
4322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4323 s.select_ranges(tabstop.iter().cloned());
4324 });
4325 self.snippet_stack.push(SnippetState {
4326 active_index: 0,
4327 ranges: tabstops,
4328 });
4329
4330 // Check whether the just-entered snippet ends with an auto-closable bracket.
4331 if self.autoclose_regions.is_empty() {
4332 let snapshot = self.buffer.read(cx).snapshot(cx);
4333 for selection in &mut self.selections.all::<Point>(cx) {
4334 let selection_head = selection.head();
4335 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4336 continue;
4337 };
4338
4339 let mut bracket_pair = None;
4340 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4341 let prev_chars = snapshot
4342 .reversed_chars_at(selection_head)
4343 .collect::<String>();
4344 for (pair, enabled) in scope.brackets() {
4345 if enabled
4346 && pair.close
4347 && prev_chars.starts_with(pair.start.as_str())
4348 && next_chars.starts_with(pair.end.as_str())
4349 {
4350 bracket_pair = Some(pair.clone());
4351 break;
4352 }
4353 }
4354 if let Some(pair) = bracket_pair {
4355 let start = snapshot.anchor_after(selection_head);
4356 let end = snapshot.anchor_after(selection_head);
4357 self.autoclose_regions.push(AutocloseRegion {
4358 selection_id: selection.id,
4359 range: start..end,
4360 pair,
4361 });
4362 }
4363 }
4364 }
4365 }
4366 Ok(())
4367 }
4368
4369 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4370 self.move_to_snippet_tabstop(Bias::Right, cx)
4371 }
4372
4373 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4374 self.move_to_snippet_tabstop(Bias::Left, cx)
4375 }
4376
4377 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4378 if let Some(mut snippet) = self.snippet_stack.pop() {
4379 match bias {
4380 Bias::Left => {
4381 if snippet.active_index > 0 {
4382 snippet.active_index -= 1;
4383 } else {
4384 self.snippet_stack.push(snippet);
4385 return false;
4386 }
4387 }
4388 Bias::Right => {
4389 if snippet.active_index + 1 < snippet.ranges.len() {
4390 snippet.active_index += 1;
4391 } else {
4392 self.snippet_stack.push(snippet);
4393 return false;
4394 }
4395 }
4396 }
4397 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4398 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4399 s.select_anchor_ranges(current_ranges.iter().cloned())
4400 });
4401 // If snippet state is not at the last tabstop, push it back on the stack
4402 if snippet.active_index + 1 < snippet.ranges.len() {
4403 self.snippet_stack.push(snippet);
4404 }
4405 return true;
4406 }
4407 }
4408
4409 false
4410 }
4411
4412 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4413 self.transact(cx, |this, cx| {
4414 this.select_all(&SelectAll, cx);
4415 this.insert("", cx);
4416 });
4417 }
4418
4419 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4420 self.transact(cx, |this, cx| {
4421 this.select_autoclose_pair(cx);
4422 let mut selections = this.selections.all::<Point>(cx);
4423 if !this.selections.line_mode {
4424 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4425 for selection in &mut selections {
4426 if selection.is_empty() {
4427 let old_head = selection.head();
4428 let mut new_head =
4429 movement::left(&display_map, old_head.to_display_point(&display_map))
4430 .to_point(&display_map);
4431 if let Some((buffer, line_buffer_range)) = display_map
4432 .buffer_snapshot
4433 .buffer_line_for_row(old_head.row)
4434 {
4435 let indent_size =
4436 buffer.indent_size_for_line(line_buffer_range.start.row);
4437 let indent_len = match indent_size.kind {
4438 IndentKind::Space => {
4439 buffer.settings_at(line_buffer_range.start, cx).tab_size
4440 }
4441 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4442 };
4443 if old_head.column <= indent_size.len && old_head.column > 0 {
4444 let indent_len = indent_len.get();
4445 new_head = cmp::min(
4446 new_head,
4447 Point::new(
4448 old_head.row,
4449 ((old_head.column - 1) / indent_len) * indent_len,
4450 ),
4451 );
4452 }
4453 }
4454
4455 selection.set_head(new_head, SelectionGoal::None);
4456 }
4457 }
4458 }
4459
4460 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4461 this.insert("", cx);
4462 this.refresh_copilot_suggestions(true, cx);
4463 });
4464 }
4465
4466 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4467 self.transact(cx, |this, cx| {
4468 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4469 let line_mode = s.line_mode;
4470 s.move_with(|map, selection| {
4471 if selection.is_empty() && !line_mode {
4472 let cursor = movement::right(map, selection.head());
4473 selection.end = cursor;
4474 selection.reversed = true;
4475 selection.goal = SelectionGoal::None;
4476 }
4477 })
4478 });
4479 this.insert("", cx);
4480 this.refresh_copilot_suggestions(true, cx);
4481 });
4482 }
4483
4484 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4485 if self.move_to_prev_snippet_tabstop(cx) {
4486 return;
4487 }
4488
4489 self.outdent(&Outdent, cx);
4490 }
4491
4492 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4493 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4494 return;
4495 }
4496
4497 let mut selections = self.selections.all_adjusted(cx);
4498 let buffer = self.buffer.read(cx);
4499 let snapshot = buffer.snapshot(cx);
4500 let rows_iter = selections.iter().map(|s| s.head().row);
4501 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4502
4503 let mut edits = Vec::new();
4504 let mut prev_edited_row = 0;
4505 let mut row_delta = 0;
4506 for selection in &mut selections {
4507 if selection.start.row != prev_edited_row {
4508 row_delta = 0;
4509 }
4510 prev_edited_row = selection.end.row;
4511
4512 // If the selection is non-empty, then increase the indentation of the selected lines.
4513 if !selection.is_empty() {
4514 row_delta =
4515 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4516 continue;
4517 }
4518
4519 // If the selection is empty and the cursor is in the leading whitespace before the
4520 // suggested indentation, then auto-indent the line.
4521 let cursor = selection.head();
4522 let current_indent = snapshot.indent_size_for_line(cursor.row);
4523 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4524 if cursor.column < suggested_indent.len
4525 && cursor.column <= current_indent.len
4526 && current_indent.len <= suggested_indent.len
4527 {
4528 selection.start = Point::new(cursor.row, suggested_indent.len);
4529 selection.end = selection.start;
4530 if row_delta == 0 {
4531 edits.extend(Buffer::edit_for_indent_size_adjustment(
4532 cursor.row,
4533 current_indent,
4534 suggested_indent,
4535 ));
4536 row_delta = suggested_indent.len - current_indent.len;
4537 }
4538 continue;
4539 }
4540 }
4541
4542 // Accept copilot suggestion if there is only one selection and the cursor is not
4543 // in the leading whitespace.
4544 if self.selections.count() == 1
4545 && cursor.column >= current_indent.len
4546 && self.has_active_copilot_suggestion(cx)
4547 {
4548 self.accept_copilot_suggestion(cx);
4549 return;
4550 }
4551
4552 // Otherwise, insert a hard or soft tab.
4553 let settings = buffer.settings_at(cursor, cx);
4554 let tab_size = if settings.hard_tabs {
4555 IndentSize::tab()
4556 } else {
4557 let tab_size = settings.tab_size.get();
4558 let char_column = snapshot
4559 .text_for_range(Point::new(cursor.row, 0)..cursor)
4560 .flat_map(str::chars)
4561 .count()
4562 + row_delta as usize;
4563 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4564 IndentSize::spaces(chars_to_next_tab_stop)
4565 };
4566 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4567 selection.end = selection.start;
4568 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4569 row_delta += tab_size.len;
4570 }
4571
4572 self.transact(cx, |this, cx| {
4573 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4574 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4575 this.refresh_copilot_suggestions(true, cx);
4576 });
4577 }
4578
4579 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4580 if self.read_only(cx) {
4581 return;
4582 }
4583 let mut selections = self.selections.all::<Point>(cx);
4584 let mut prev_edited_row = 0;
4585 let mut row_delta = 0;
4586 let mut edits = Vec::new();
4587 let buffer = self.buffer.read(cx);
4588 let snapshot = buffer.snapshot(cx);
4589 for selection in &mut selections {
4590 if selection.start.row != prev_edited_row {
4591 row_delta = 0;
4592 }
4593 prev_edited_row = selection.end.row;
4594
4595 row_delta =
4596 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4597 }
4598
4599 self.transact(cx, |this, cx| {
4600 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4601 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4602 });
4603 }
4604
4605 fn indent_selection(
4606 buffer: &MultiBuffer,
4607 snapshot: &MultiBufferSnapshot,
4608 selection: &mut Selection<Point>,
4609 edits: &mut Vec<(Range<Point>, String)>,
4610 delta_for_start_row: u32,
4611 cx: &AppContext,
4612 ) -> u32 {
4613 let settings = buffer.settings_at(selection.start, cx);
4614 let tab_size = settings.tab_size.get();
4615 let indent_kind = if settings.hard_tabs {
4616 IndentKind::Tab
4617 } else {
4618 IndentKind::Space
4619 };
4620 let mut start_row = selection.start.row;
4621 let mut end_row = selection.end.row + 1;
4622
4623 // If a selection ends at the beginning of a line, don't indent
4624 // that last line.
4625 if selection.end.column == 0 && selection.end.row > selection.start.row {
4626 end_row -= 1;
4627 }
4628
4629 // Avoid re-indenting a row that has already been indented by a
4630 // previous selection, but still update this selection's column
4631 // to reflect that indentation.
4632 if delta_for_start_row > 0 {
4633 start_row += 1;
4634 selection.start.column += delta_for_start_row;
4635 if selection.end.row == selection.start.row {
4636 selection.end.column += delta_for_start_row;
4637 }
4638 }
4639
4640 let mut delta_for_end_row = 0;
4641 for row in start_row..end_row {
4642 let current_indent = snapshot.indent_size_for_line(row);
4643 let indent_delta = match (current_indent.kind, indent_kind) {
4644 (IndentKind::Space, IndentKind::Space) => {
4645 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4646 IndentSize::spaces(columns_to_next_tab_stop)
4647 }
4648 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4649 (_, IndentKind::Tab) => IndentSize::tab(),
4650 };
4651
4652 let row_start = Point::new(row, 0);
4653 edits.push((
4654 row_start..row_start,
4655 indent_delta.chars().collect::<String>(),
4656 ));
4657
4658 // Update this selection's endpoints to reflect the indentation.
4659 if row == selection.start.row {
4660 selection.start.column += indent_delta.len;
4661 }
4662 if row == selection.end.row {
4663 selection.end.column += indent_delta.len;
4664 delta_for_end_row = indent_delta.len;
4665 }
4666 }
4667
4668 if selection.start.row == selection.end.row {
4669 delta_for_start_row + delta_for_end_row
4670 } else {
4671 delta_for_end_row
4672 }
4673 }
4674
4675 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4676 if self.read_only(cx) {
4677 return;
4678 }
4679 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4680 let selections = self.selections.all::<Point>(cx);
4681 let mut deletion_ranges = Vec::new();
4682 let mut last_outdent = None;
4683 {
4684 let buffer = self.buffer.read(cx);
4685 let snapshot = buffer.snapshot(cx);
4686 for selection in &selections {
4687 let settings = buffer.settings_at(selection.start, cx);
4688 let tab_size = settings.tab_size.get();
4689 let mut rows = selection.spanned_rows(false, &display_map);
4690
4691 // Avoid re-outdenting a row that has already been outdented by a
4692 // previous selection.
4693 if let Some(last_row) = last_outdent {
4694 if last_row == rows.start {
4695 rows.start += 1;
4696 }
4697 }
4698
4699 for row in rows {
4700 let indent_size = snapshot.indent_size_for_line(row);
4701 if indent_size.len > 0 {
4702 let deletion_len = match indent_size.kind {
4703 IndentKind::Space => {
4704 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4705 if columns_to_prev_tab_stop == 0 {
4706 tab_size
4707 } else {
4708 columns_to_prev_tab_stop
4709 }
4710 }
4711 IndentKind::Tab => 1,
4712 };
4713 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4714 last_outdent = Some(row);
4715 }
4716 }
4717 }
4718 }
4719
4720 self.transact(cx, |this, cx| {
4721 this.buffer.update(cx, |buffer, cx| {
4722 let empty_str: Arc<str> = "".into();
4723 buffer.edit(
4724 deletion_ranges
4725 .into_iter()
4726 .map(|range| (range, empty_str.clone())),
4727 None,
4728 cx,
4729 );
4730 });
4731 let selections = this.selections.all::<usize>(cx);
4732 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4733 });
4734 }
4735
4736 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4737 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4738 let selections = self.selections.all::<Point>(cx);
4739
4740 let mut new_cursors = Vec::new();
4741 let mut edit_ranges = Vec::new();
4742 let mut selections = selections.iter().peekable();
4743 while let Some(selection) = selections.next() {
4744 let mut rows = selection.spanned_rows(false, &display_map);
4745 let goal_display_column = selection.head().to_display_point(&display_map).column();
4746
4747 // Accumulate contiguous regions of rows that we want to delete.
4748 while let Some(next_selection) = selections.peek() {
4749 let next_rows = next_selection.spanned_rows(false, &display_map);
4750 if next_rows.start <= rows.end {
4751 rows.end = next_rows.end;
4752 selections.next().unwrap();
4753 } else {
4754 break;
4755 }
4756 }
4757
4758 let buffer = &display_map.buffer_snapshot;
4759 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4760 let edit_end;
4761 let cursor_buffer_row;
4762 if buffer.max_point().row >= rows.end {
4763 // If there's a line after the range, delete the \n from the end of the row range
4764 // and position the cursor on the next line.
4765 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4766 cursor_buffer_row = rows.end;
4767 } else {
4768 // If there isn't a line after the range, delete the \n from the line before the
4769 // start of the row range and position the cursor there.
4770 edit_start = edit_start.saturating_sub(1);
4771 edit_end = buffer.len();
4772 cursor_buffer_row = rows.start.saturating_sub(1);
4773 }
4774
4775 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4776 *cursor.column_mut() =
4777 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4778
4779 new_cursors.push((
4780 selection.id,
4781 buffer.anchor_after(cursor.to_point(&display_map)),
4782 ));
4783 edit_ranges.push(edit_start..edit_end);
4784 }
4785
4786 self.transact(cx, |this, cx| {
4787 let buffer = this.buffer.update(cx, |buffer, cx| {
4788 let empty_str: Arc<str> = "".into();
4789 buffer.edit(
4790 edit_ranges
4791 .into_iter()
4792 .map(|range| (range, empty_str.clone())),
4793 None,
4794 cx,
4795 );
4796 buffer.snapshot(cx)
4797 });
4798 let new_selections = new_cursors
4799 .into_iter()
4800 .map(|(id, cursor)| {
4801 let cursor = cursor.to_point(&buffer);
4802 Selection {
4803 id,
4804 start: cursor,
4805 end: cursor,
4806 reversed: false,
4807 goal: SelectionGoal::None,
4808 }
4809 })
4810 .collect();
4811
4812 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4813 s.select(new_selections);
4814 });
4815 });
4816 }
4817
4818 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4819 if self.read_only(cx) {
4820 return;
4821 }
4822 let mut row_ranges = Vec::<Range<u32>>::new();
4823 for selection in self.selections.all::<Point>(cx) {
4824 let start = selection.start.row;
4825 let end = if selection.start.row == selection.end.row {
4826 selection.start.row + 1
4827 } else {
4828 selection.end.row
4829 };
4830
4831 if let Some(last_row_range) = row_ranges.last_mut() {
4832 if start <= last_row_range.end {
4833 last_row_range.end = end;
4834 continue;
4835 }
4836 }
4837 row_ranges.push(start..end);
4838 }
4839
4840 let snapshot = self.buffer.read(cx).snapshot(cx);
4841 let mut cursor_positions = Vec::new();
4842 for row_range in &row_ranges {
4843 let anchor = snapshot.anchor_before(Point::new(
4844 row_range.end - 1,
4845 snapshot.line_len(row_range.end - 1),
4846 ));
4847 cursor_positions.push(anchor..anchor);
4848 }
4849
4850 self.transact(cx, |this, cx| {
4851 for row_range in row_ranges.into_iter().rev() {
4852 for row in row_range.rev() {
4853 let end_of_line = Point::new(row, snapshot.line_len(row));
4854 let indent = snapshot.indent_size_for_line(row + 1);
4855 let start_of_next_line = Point::new(row + 1, indent.len);
4856
4857 let replace = if snapshot.line_len(row + 1) > indent.len {
4858 " "
4859 } else {
4860 ""
4861 };
4862
4863 this.buffer.update(cx, |buffer, cx| {
4864 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4865 });
4866 }
4867 }
4868
4869 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4870 s.select_anchor_ranges(cursor_positions)
4871 });
4872 });
4873 }
4874
4875 pub fn sort_lines_case_sensitive(
4876 &mut self,
4877 _: &SortLinesCaseSensitive,
4878 cx: &mut ViewContext<Self>,
4879 ) {
4880 self.manipulate_lines(cx, |lines| lines.sort())
4881 }
4882
4883 pub fn sort_lines_case_insensitive(
4884 &mut self,
4885 _: &SortLinesCaseInsensitive,
4886 cx: &mut ViewContext<Self>,
4887 ) {
4888 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4889 }
4890
4891 pub fn unique_lines_case_insensitive(
4892 &mut self,
4893 _: &UniqueLinesCaseInsensitive,
4894 cx: &mut ViewContext<Self>,
4895 ) {
4896 self.manipulate_lines(cx, |lines| {
4897 let mut seen = HashSet::default();
4898 lines.retain(|line| seen.insert(line.to_lowercase()));
4899 })
4900 }
4901
4902 pub fn unique_lines_case_sensitive(
4903 &mut self,
4904 _: &UniqueLinesCaseSensitive,
4905 cx: &mut ViewContext<Self>,
4906 ) {
4907 self.manipulate_lines(cx, |lines| {
4908 let mut seen = HashSet::default();
4909 lines.retain(|line| seen.insert(*line));
4910 })
4911 }
4912
4913 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4914 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4915 if !revert_changes.is_empty() {
4916 self.transact(cx, |editor, cx| {
4917 editor.buffer().update(cx, |multi_buffer, cx| {
4918 for (buffer_id, buffer_revert_ranges) in revert_changes {
4919 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4920 buffer.update(cx, |buffer, cx| {
4921 buffer.edit(buffer_revert_ranges, None, cx);
4922 });
4923 }
4924 }
4925 });
4926 editor.change_selections(None, cx, |selections| selections.refresh());
4927 });
4928 }
4929 }
4930
4931 fn gather_revert_changes(
4932 &mut self,
4933 selections: &[Selection<Anchor>],
4934 cx: &mut ViewContext<'_, Editor>,
4935 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4936 let mut revert_changes = HashMap::default();
4937 self.buffer.update(cx, |multi_buffer, cx| {
4938 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4939 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4940 let head = selection.head();
4941 let tail = selection.tail();
4942 let start = tail.to_point(&multi_buffer_snapshot).row;
4943 let end = head.to_point(&multi_buffer_snapshot).row;
4944 if start > end {
4945 end..start
4946 } else {
4947 start..end
4948 }
4949 });
4950
4951 let mut processed_buffer_rows =
4952 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4953 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4954 let query_rows =
4955 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4956 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4957 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4958 // when the caret is just above or just below the deleted hunk.
4959 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4960 let related_to_selection = if allow_adjacent {
4961 hunk.associated_range.overlaps(&query_rows)
4962 || hunk.associated_range.start == query_rows.end
4963 || hunk.associated_range.end == query_rows.start
4964 } else {
4965 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4966 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4967 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4968 || selected_multi_buffer_rows.end == hunk.associated_range.start
4969 };
4970 if related_to_selection {
4971 if !processed_buffer_rows
4972 .entry(hunk.buffer_id)
4973 .or_default()
4974 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4975 {
4976 continue;
4977 }
4978 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4979 }
4980 }
4981 }
4982 });
4983 revert_changes
4984 }
4985
4986 fn prepare_revert_change(
4987 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4988 multi_buffer: &MultiBuffer,
4989 hunk: &DiffHunk<u32>,
4990 cx: &mut AppContext,
4991 ) -> Option<()> {
4992 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
4993 let buffer = buffer.read(cx);
4994 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
4995 let buffer_snapshot = buffer.snapshot();
4996 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
4997 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
4998 probe
4999 .0
5000 .start
5001 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5002 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5003 .then(probe.1.as_ref().cmp(original_text))
5004 }) {
5005 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5006 Some(())
5007 } else {
5008 None
5009 }
5010 }
5011
5012 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5013 self.manipulate_lines(cx, |lines| lines.reverse())
5014 }
5015
5016 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5017 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5018 }
5019
5020 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5021 where
5022 Fn: FnMut(&mut Vec<&str>),
5023 {
5024 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5025 let buffer = self.buffer.read(cx).snapshot(cx);
5026
5027 let mut edits = Vec::new();
5028
5029 let selections = self.selections.all::<Point>(cx);
5030 let mut selections = selections.iter().peekable();
5031 let mut contiguous_row_selections = Vec::new();
5032 let mut new_selections = Vec::new();
5033 let mut added_lines = 0;
5034 let mut removed_lines = 0;
5035
5036 while let Some(selection) = selections.next() {
5037 let (start_row, end_row) = consume_contiguous_rows(
5038 &mut contiguous_row_selections,
5039 selection,
5040 &display_map,
5041 &mut selections,
5042 );
5043
5044 let start_point = Point::new(start_row, 0);
5045 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5046 let text = buffer
5047 .text_for_range(start_point..end_point)
5048 .collect::<String>();
5049
5050 let mut lines = text.split('\n').collect_vec();
5051
5052 let lines_before = lines.len();
5053 callback(&mut lines);
5054 let lines_after = lines.len();
5055
5056 edits.push((start_point..end_point, lines.join("\n")));
5057
5058 // Selections must change based on added and removed line count
5059 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5060 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5061 new_selections.push(Selection {
5062 id: selection.id,
5063 start: start_row,
5064 end: end_row,
5065 goal: SelectionGoal::None,
5066 reversed: selection.reversed,
5067 });
5068
5069 if lines_after > lines_before {
5070 added_lines += lines_after - lines_before;
5071 } else if lines_before > lines_after {
5072 removed_lines += lines_before - lines_after;
5073 }
5074 }
5075
5076 self.transact(cx, |this, cx| {
5077 let buffer = this.buffer.update(cx, |buffer, cx| {
5078 buffer.edit(edits, None, cx);
5079 buffer.snapshot(cx)
5080 });
5081
5082 // Recalculate offsets on newly edited buffer
5083 let new_selections = new_selections
5084 .iter()
5085 .map(|s| {
5086 let start_point = Point::new(s.start, 0);
5087 let end_point = Point::new(s.end, buffer.line_len(s.end));
5088 Selection {
5089 id: s.id,
5090 start: buffer.point_to_offset(start_point),
5091 end: buffer.point_to_offset(end_point),
5092 goal: s.goal,
5093 reversed: s.reversed,
5094 }
5095 })
5096 .collect();
5097
5098 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5099 s.select(new_selections);
5100 });
5101
5102 this.request_autoscroll(Autoscroll::fit(), cx);
5103 });
5104 }
5105
5106 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5107 self.manipulate_text(cx, |text| text.to_uppercase())
5108 }
5109
5110 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5111 self.manipulate_text(cx, |text| text.to_lowercase())
5112 }
5113
5114 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5115 self.manipulate_text(cx, |text| {
5116 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5117 // https://github.com/rutrum/convert-case/issues/16
5118 text.split('\n')
5119 .map(|line| line.to_case(Case::Title))
5120 .join("\n")
5121 })
5122 }
5123
5124 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5125 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5126 }
5127
5128 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5129 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5130 }
5131
5132 pub fn convert_to_upper_camel_case(
5133 &mut self,
5134 _: &ConvertToUpperCamelCase,
5135 cx: &mut ViewContext<Self>,
5136 ) {
5137 self.manipulate_text(cx, |text| {
5138 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5139 // https://github.com/rutrum/convert-case/issues/16
5140 text.split('\n')
5141 .map(|line| line.to_case(Case::UpperCamel))
5142 .join("\n")
5143 })
5144 }
5145
5146 pub fn convert_to_lower_camel_case(
5147 &mut self,
5148 _: &ConvertToLowerCamelCase,
5149 cx: &mut ViewContext<Self>,
5150 ) {
5151 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5152 }
5153
5154 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5155 where
5156 Fn: FnMut(&str) -> String,
5157 {
5158 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5159 let buffer = self.buffer.read(cx).snapshot(cx);
5160
5161 let mut new_selections = Vec::new();
5162 let mut edits = Vec::new();
5163 let mut selection_adjustment = 0i32;
5164
5165 for selection in self.selections.all::<usize>(cx) {
5166 let selection_is_empty = selection.is_empty();
5167
5168 let (start, end) = if selection_is_empty {
5169 let word_range = movement::surrounding_word(
5170 &display_map,
5171 selection.start.to_display_point(&display_map),
5172 );
5173 let start = word_range.start.to_offset(&display_map, Bias::Left);
5174 let end = word_range.end.to_offset(&display_map, Bias::Left);
5175 (start, end)
5176 } else {
5177 (selection.start, selection.end)
5178 };
5179
5180 let text = buffer.text_for_range(start..end).collect::<String>();
5181 let old_length = text.len() as i32;
5182 let text = callback(&text);
5183
5184 new_selections.push(Selection {
5185 start: (start as i32 - selection_adjustment) as usize,
5186 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5187 goal: SelectionGoal::None,
5188 ..selection
5189 });
5190
5191 selection_adjustment += old_length - text.len() as i32;
5192
5193 edits.push((start..end, text));
5194 }
5195
5196 self.transact(cx, |this, cx| {
5197 this.buffer.update(cx, |buffer, cx| {
5198 buffer.edit(edits, None, cx);
5199 });
5200
5201 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5202 s.select(new_selections);
5203 });
5204
5205 this.request_autoscroll(Autoscroll::fit(), cx);
5206 });
5207 }
5208
5209 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5210 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5211 let buffer = &display_map.buffer_snapshot;
5212 let selections = self.selections.all::<Point>(cx);
5213
5214 let mut edits = Vec::new();
5215 let mut selections_iter = selections.iter().peekable();
5216 while let Some(selection) = selections_iter.next() {
5217 // Avoid duplicating the same lines twice.
5218 let mut rows = selection.spanned_rows(false, &display_map);
5219
5220 while let Some(next_selection) = selections_iter.peek() {
5221 let next_rows = next_selection.spanned_rows(false, &display_map);
5222 if next_rows.start < rows.end {
5223 rows.end = next_rows.end;
5224 selections_iter.next().unwrap();
5225 } else {
5226 break;
5227 }
5228 }
5229
5230 // Copy the text from the selected row region and splice it either at the start
5231 // or end of the region.
5232 let start = Point::new(rows.start, 0);
5233 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5234 let text = buffer
5235 .text_for_range(start..end)
5236 .chain(Some("\n"))
5237 .collect::<String>();
5238 let insert_location = if action.move_upwards {
5239 Point::new(rows.end, 0)
5240 } else {
5241 start
5242 };
5243 edits.push((insert_location..insert_location, text));
5244 }
5245
5246 self.transact(cx, |this, cx| {
5247 this.buffer.update(cx, |buffer, cx| {
5248 buffer.edit(edits, None, cx);
5249 });
5250
5251 this.request_autoscroll(Autoscroll::fit(), cx);
5252 });
5253 }
5254
5255 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5256 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5257 let buffer = self.buffer.read(cx).snapshot(cx);
5258
5259 let mut edits = Vec::new();
5260 let mut unfold_ranges = Vec::new();
5261 let mut refold_ranges = Vec::new();
5262
5263 let selections = self.selections.all::<Point>(cx);
5264 let mut selections = selections.iter().peekable();
5265 let mut contiguous_row_selections = Vec::new();
5266 let mut new_selections = Vec::new();
5267
5268 while let Some(selection) = selections.next() {
5269 // Find all the selections that span a contiguous row range
5270 let (start_row, end_row) = consume_contiguous_rows(
5271 &mut contiguous_row_selections,
5272 selection,
5273 &display_map,
5274 &mut selections,
5275 );
5276
5277 // Move the text spanned by the row range to be before the line preceding the row range
5278 if start_row > 0 {
5279 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5280 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5281 let insertion_point = display_map
5282 .prev_line_boundary(Point::new(start_row - 1, 0))
5283 .0;
5284
5285 // Don't move lines across excerpts
5286 if buffer
5287 .excerpt_boundaries_in_range((
5288 Bound::Excluded(insertion_point),
5289 Bound::Included(range_to_move.end),
5290 ))
5291 .next()
5292 .is_none()
5293 {
5294 let text = buffer
5295 .text_for_range(range_to_move.clone())
5296 .flat_map(|s| s.chars())
5297 .skip(1)
5298 .chain(['\n'])
5299 .collect::<String>();
5300
5301 edits.push((
5302 buffer.anchor_after(range_to_move.start)
5303 ..buffer.anchor_before(range_to_move.end),
5304 String::new(),
5305 ));
5306 let insertion_anchor = buffer.anchor_after(insertion_point);
5307 edits.push((insertion_anchor..insertion_anchor, text));
5308
5309 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5310
5311 // Move selections up
5312 new_selections.extend(contiguous_row_selections.drain(..).map(
5313 |mut selection| {
5314 selection.start.row -= row_delta;
5315 selection.end.row -= row_delta;
5316 selection
5317 },
5318 ));
5319
5320 // Move folds up
5321 unfold_ranges.push(range_to_move.clone());
5322 for fold in display_map.folds_in_range(
5323 buffer.anchor_before(range_to_move.start)
5324 ..buffer.anchor_after(range_to_move.end),
5325 ) {
5326 let mut start = fold.range.start.to_point(&buffer);
5327 let mut end = fold.range.end.to_point(&buffer);
5328 start.row -= row_delta;
5329 end.row -= row_delta;
5330 refold_ranges.push(start..end);
5331 }
5332 }
5333 }
5334
5335 // If we didn't move line(s), preserve the existing selections
5336 new_selections.append(&mut contiguous_row_selections);
5337 }
5338
5339 self.transact(cx, |this, cx| {
5340 this.unfold_ranges(unfold_ranges, true, true, cx);
5341 this.buffer.update(cx, |buffer, cx| {
5342 for (range, text) in edits {
5343 buffer.edit([(range, text)], None, cx);
5344 }
5345 });
5346 this.fold_ranges(refold_ranges, true, cx);
5347 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5348 s.select(new_selections);
5349 })
5350 });
5351 }
5352
5353 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5354 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5355 let buffer = self.buffer.read(cx).snapshot(cx);
5356
5357 let mut edits = Vec::new();
5358 let mut unfold_ranges = Vec::new();
5359 let mut refold_ranges = Vec::new();
5360
5361 let selections = self.selections.all::<Point>(cx);
5362 let mut selections = selections.iter().peekable();
5363 let mut contiguous_row_selections = Vec::new();
5364 let mut new_selections = Vec::new();
5365
5366 while let Some(selection) = selections.next() {
5367 // Find all the selections that span a contiguous row range
5368 let (start_row, end_row) = consume_contiguous_rows(
5369 &mut contiguous_row_selections,
5370 selection,
5371 &display_map,
5372 &mut selections,
5373 );
5374
5375 // Move the text spanned by the row range to be after the last line of the row range
5376 if end_row <= buffer.max_point().row {
5377 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5378 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5379
5380 // Don't move lines across excerpt boundaries
5381 if buffer
5382 .excerpt_boundaries_in_range((
5383 Bound::Excluded(range_to_move.start),
5384 Bound::Included(insertion_point),
5385 ))
5386 .next()
5387 .is_none()
5388 {
5389 let mut text = String::from("\n");
5390 text.extend(buffer.text_for_range(range_to_move.clone()));
5391 text.pop(); // Drop trailing newline
5392 edits.push((
5393 buffer.anchor_after(range_to_move.start)
5394 ..buffer.anchor_before(range_to_move.end),
5395 String::new(),
5396 ));
5397 let insertion_anchor = buffer.anchor_after(insertion_point);
5398 edits.push((insertion_anchor..insertion_anchor, text));
5399
5400 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5401
5402 // Move selections down
5403 new_selections.extend(contiguous_row_selections.drain(..).map(
5404 |mut selection| {
5405 selection.start.row += row_delta;
5406 selection.end.row += row_delta;
5407 selection
5408 },
5409 ));
5410
5411 // Move folds down
5412 unfold_ranges.push(range_to_move.clone());
5413 for fold in display_map.folds_in_range(
5414 buffer.anchor_before(range_to_move.start)
5415 ..buffer.anchor_after(range_to_move.end),
5416 ) {
5417 let mut start = fold.range.start.to_point(&buffer);
5418 let mut end = fold.range.end.to_point(&buffer);
5419 start.row += row_delta;
5420 end.row += row_delta;
5421 refold_ranges.push(start..end);
5422 }
5423 }
5424 }
5425
5426 // If we didn't move line(s), preserve the existing selections
5427 new_selections.append(&mut contiguous_row_selections);
5428 }
5429
5430 self.transact(cx, |this, cx| {
5431 this.unfold_ranges(unfold_ranges, true, true, cx);
5432 this.buffer.update(cx, |buffer, cx| {
5433 for (range, text) in edits {
5434 buffer.edit([(range, text)], None, cx);
5435 }
5436 });
5437 this.fold_ranges(refold_ranges, true, cx);
5438 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5439 });
5440 }
5441
5442 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5443 let text_layout_details = &self.text_layout_details(cx);
5444 self.transact(cx, |this, cx| {
5445 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5446 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5447 let line_mode = s.line_mode;
5448 s.move_with(|display_map, selection| {
5449 if !selection.is_empty() || line_mode {
5450 return;
5451 }
5452
5453 let mut head = selection.head();
5454 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5455 if head.column() == display_map.line_len(head.row()) {
5456 transpose_offset = display_map
5457 .buffer_snapshot
5458 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5459 }
5460
5461 if transpose_offset == 0 {
5462 return;
5463 }
5464
5465 *head.column_mut() += 1;
5466 head = display_map.clip_point(head, Bias::Right);
5467 let goal = SelectionGoal::HorizontalPosition(
5468 display_map
5469 .x_for_display_point(head, &text_layout_details)
5470 .into(),
5471 );
5472 selection.collapse_to(head, goal);
5473
5474 let transpose_start = display_map
5475 .buffer_snapshot
5476 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5477 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5478 let transpose_end = display_map
5479 .buffer_snapshot
5480 .clip_offset(transpose_offset + 1, Bias::Right);
5481 if let Some(ch) =
5482 display_map.buffer_snapshot.chars_at(transpose_start).next()
5483 {
5484 edits.push((transpose_start..transpose_offset, String::new()));
5485 edits.push((transpose_end..transpose_end, ch.to_string()));
5486 }
5487 }
5488 });
5489 edits
5490 });
5491 this.buffer
5492 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5493 let selections = this.selections.all::<usize>(cx);
5494 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5495 s.select(selections);
5496 });
5497 });
5498 }
5499
5500 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5501 let mut text = String::new();
5502 let buffer = self.buffer.read(cx).snapshot(cx);
5503 let mut selections = self.selections.all::<Point>(cx);
5504 let mut clipboard_selections = Vec::with_capacity(selections.len());
5505 {
5506 let max_point = buffer.max_point();
5507 let mut is_first = true;
5508 for selection in &mut selections {
5509 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5510 if is_entire_line {
5511 selection.start = Point::new(selection.start.row, 0);
5512 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5513 selection.goal = SelectionGoal::None;
5514 }
5515 if is_first {
5516 is_first = false;
5517 } else {
5518 text += "\n";
5519 }
5520 let mut len = 0;
5521 for chunk in buffer.text_for_range(selection.start..selection.end) {
5522 text.push_str(chunk);
5523 len += chunk.len();
5524 }
5525 clipboard_selections.push(ClipboardSelection {
5526 len,
5527 is_entire_line,
5528 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5529 });
5530 }
5531 }
5532
5533 self.transact(cx, |this, cx| {
5534 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5535 s.select(selections);
5536 });
5537 this.insert("", cx);
5538 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5539 });
5540 }
5541
5542 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5543 let selections = self.selections.all::<Point>(cx);
5544 let buffer = self.buffer.read(cx).read(cx);
5545 let mut text = String::new();
5546
5547 let mut clipboard_selections = Vec::with_capacity(selections.len());
5548 {
5549 let max_point = buffer.max_point();
5550 let mut is_first = true;
5551 for selection in selections.iter() {
5552 let mut start = selection.start;
5553 let mut end = selection.end;
5554 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5555 if is_entire_line {
5556 start = Point::new(start.row, 0);
5557 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5558 }
5559 if is_first {
5560 is_first = false;
5561 } else {
5562 text += "\n";
5563 }
5564 let mut len = 0;
5565 for chunk in buffer.text_for_range(start..end) {
5566 text.push_str(chunk);
5567 len += chunk.len();
5568 }
5569 clipboard_selections.push(ClipboardSelection {
5570 len,
5571 is_entire_line,
5572 first_line_indent: buffer.indent_size_for_line(start.row).len,
5573 });
5574 }
5575 }
5576
5577 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5578 }
5579
5580 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5581 if self.read_only(cx) {
5582 return;
5583 }
5584
5585 self.transact(cx, |this, cx| {
5586 if let Some(item) = cx.read_from_clipboard() {
5587 let clipboard_text = Cow::Borrowed(item.text());
5588 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5589 let old_selections = this.selections.all::<usize>(cx);
5590 let all_selections_were_entire_line =
5591 clipboard_selections.iter().all(|s| s.is_entire_line);
5592 let first_selection_indent_column =
5593 clipboard_selections.first().map(|s| s.first_line_indent);
5594 if clipboard_selections.len() != old_selections.len() {
5595 clipboard_selections.drain(..);
5596 }
5597
5598 this.buffer.update(cx, |buffer, cx| {
5599 let snapshot = buffer.read(cx);
5600 let mut start_offset = 0;
5601 let mut edits = Vec::new();
5602 let mut original_indent_columns = Vec::new();
5603 let line_mode = this.selections.line_mode;
5604 for (ix, selection) in old_selections.iter().enumerate() {
5605 let to_insert;
5606 let entire_line;
5607 let original_indent_column;
5608 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5609 let end_offset = start_offset + clipboard_selection.len;
5610 to_insert = &clipboard_text[start_offset..end_offset];
5611 entire_line = clipboard_selection.is_entire_line;
5612 start_offset = end_offset + 1;
5613 original_indent_column =
5614 Some(clipboard_selection.first_line_indent);
5615 } else {
5616 to_insert = clipboard_text.as_str();
5617 entire_line = all_selections_were_entire_line;
5618 original_indent_column = first_selection_indent_column
5619 }
5620
5621 // If the corresponding selection was empty when this slice of the
5622 // clipboard text was written, then the entire line containing the
5623 // selection was copied. If this selection is also currently empty,
5624 // then paste the line before the current line of the buffer.
5625 let range = if selection.is_empty() && !line_mode && entire_line {
5626 let column = selection.start.to_point(&snapshot).column as usize;
5627 let line_start = selection.start - column;
5628 line_start..line_start
5629 } else {
5630 selection.range()
5631 };
5632
5633 edits.push((range, to_insert));
5634 original_indent_columns.extend(original_indent_column);
5635 }
5636 drop(snapshot);
5637
5638 buffer.edit(
5639 edits,
5640 Some(AutoindentMode::Block {
5641 original_indent_columns,
5642 }),
5643 cx,
5644 );
5645 });
5646
5647 let selections = this.selections.all::<usize>(cx);
5648 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5649 } else {
5650 this.insert(&clipboard_text, cx);
5651 }
5652 }
5653 });
5654 }
5655
5656 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5657 if self.read_only(cx) {
5658 return;
5659 }
5660
5661 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5662 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5663 self.change_selections(None, cx, |s| {
5664 s.select_anchors(selections.to_vec());
5665 });
5666 }
5667 self.request_autoscroll(Autoscroll::fit(), cx);
5668 self.unmark_text(cx);
5669 self.refresh_copilot_suggestions(true, cx);
5670 cx.emit(EditorEvent::Edited);
5671 }
5672 }
5673
5674 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5675 if self.read_only(cx) {
5676 return;
5677 }
5678
5679 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5680 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5681 {
5682 self.change_selections(None, cx, |s| {
5683 s.select_anchors(selections.to_vec());
5684 });
5685 }
5686 self.request_autoscroll(Autoscroll::fit(), cx);
5687 self.unmark_text(cx);
5688 self.refresh_copilot_suggestions(true, cx);
5689 cx.emit(EditorEvent::Edited);
5690 }
5691 }
5692
5693 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5694 self.buffer
5695 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5696 }
5697
5698 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5700 let line_mode = s.line_mode;
5701 s.move_with(|map, selection| {
5702 let cursor = if selection.is_empty() && !line_mode {
5703 movement::left(map, selection.start)
5704 } else {
5705 selection.start
5706 };
5707 selection.collapse_to(cursor, SelectionGoal::None);
5708 });
5709 })
5710 }
5711
5712 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5715 })
5716 }
5717
5718 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5720 let line_mode = s.line_mode;
5721 s.move_with(|map, selection| {
5722 let cursor = if selection.is_empty() && !line_mode {
5723 movement::right(map, selection.end)
5724 } else {
5725 selection.end
5726 };
5727 selection.collapse_to(cursor, SelectionGoal::None)
5728 });
5729 })
5730 }
5731
5732 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5733 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5734 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5735 })
5736 }
5737
5738 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5739 if self.take_rename(true, cx).is_some() {
5740 return;
5741 }
5742
5743 if matches!(self.mode, EditorMode::SingleLine) {
5744 cx.propagate();
5745 return;
5746 }
5747
5748 let text_layout_details = &self.text_layout_details(cx);
5749
5750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5751 let line_mode = s.line_mode;
5752 s.move_with(|map, selection| {
5753 if !selection.is_empty() && !line_mode {
5754 selection.goal = SelectionGoal::None;
5755 }
5756 let (cursor, goal) = movement::up(
5757 map,
5758 selection.start,
5759 selection.goal,
5760 false,
5761 &text_layout_details,
5762 );
5763 selection.collapse_to(cursor, goal);
5764 });
5765 })
5766 }
5767
5768 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5769 if self.take_rename(true, cx).is_some() {
5770 return;
5771 }
5772
5773 if matches!(self.mode, EditorMode::SingleLine) {
5774 cx.propagate();
5775 return;
5776 }
5777
5778 let text_layout_details = &self.text_layout_details(cx);
5779
5780 self.change_selections(Some(Autoscroll::fit()), 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::up_by_rows(
5787 map,
5788 selection.start,
5789 action.lines,
5790 selection.goal,
5791 false,
5792 &text_layout_details,
5793 );
5794 selection.collapse_to(cursor, goal);
5795 });
5796 })
5797 }
5798
5799 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5800 if self.take_rename(true, cx).is_some() {
5801 return;
5802 }
5803
5804 if matches!(self.mode, EditorMode::SingleLine) {
5805 cx.propagate();
5806 return;
5807 }
5808
5809 let text_layout_details = &self.text_layout_details(cx);
5810
5811 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5812 let line_mode = s.line_mode;
5813 s.move_with(|map, selection| {
5814 if !selection.is_empty() && !line_mode {
5815 selection.goal = SelectionGoal::None;
5816 }
5817 let (cursor, goal) = movement::down_by_rows(
5818 map,
5819 selection.start,
5820 action.lines,
5821 selection.goal,
5822 false,
5823 &text_layout_details,
5824 );
5825 selection.collapse_to(cursor, goal);
5826 });
5827 })
5828 }
5829
5830 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5831 let text_layout_details = &self.text_layout_details(cx);
5832 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5833 s.move_heads_with(|map, head, goal| {
5834 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5835 })
5836 })
5837 }
5838
5839 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5840 let text_layout_details = &self.text_layout_details(cx);
5841 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5842 s.move_heads_with(|map, head, goal| {
5843 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5844 })
5845 })
5846 }
5847
5848 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5849 if self.take_rename(true, cx).is_some() {
5850 return;
5851 }
5852
5853 if matches!(self.mode, EditorMode::SingleLine) {
5854 cx.propagate();
5855 return;
5856 }
5857
5858 let row_count = if let Some(row_count) = self.visible_line_count() {
5859 row_count as u32 - 1
5860 } else {
5861 return;
5862 };
5863
5864 let autoscroll = if action.center_cursor {
5865 Autoscroll::center()
5866 } else {
5867 Autoscroll::fit()
5868 };
5869
5870 let text_layout_details = &self.text_layout_details(cx);
5871
5872 self.change_selections(Some(autoscroll), cx, |s| {
5873 let line_mode = s.line_mode;
5874 s.move_with(|map, selection| {
5875 if !selection.is_empty() && !line_mode {
5876 selection.goal = SelectionGoal::None;
5877 }
5878 let (cursor, goal) = movement::up_by_rows(
5879 map,
5880 selection.end,
5881 row_count,
5882 selection.goal,
5883 false,
5884 &text_layout_details,
5885 );
5886 selection.collapse_to(cursor, goal);
5887 });
5888 });
5889 }
5890
5891 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5892 let text_layout_details = &self.text_layout_details(cx);
5893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5894 s.move_heads_with(|map, head, goal| {
5895 movement::up(map, head, goal, false, &text_layout_details)
5896 })
5897 })
5898 }
5899
5900 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5901 self.take_rename(true, cx);
5902
5903 if self.mode == EditorMode::SingleLine {
5904 cx.propagate();
5905 return;
5906 }
5907
5908 let text_layout_details = &self.text_layout_details(cx);
5909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5910 let line_mode = s.line_mode;
5911 s.move_with(|map, selection| {
5912 if !selection.is_empty() && !line_mode {
5913 selection.goal = SelectionGoal::None;
5914 }
5915 let (cursor, goal) = movement::down(
5916 map,
5917 selection.end,
5918 selection.goal,
5919 false,
5920 &text_layout_details,
5921 );
5922 selection.collapse_to(cursor, goal);
5923 });
5924 });
5925 }
5926
5927 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5928 if self.take_rename(true, cx).is_some() {
5929 return;
5930 }
5931
5932 if self
5933 .context_menu
5934 .write()
5935 .as_mut()
5936 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5937 .unwrap_or(false)
5938 {
5939 return;
5940 }
5941
5942 if matches!(self.mode, EditorMode::SingleLine) {
5943 cx.propagate();
5944 return;
5945 }
5946
5947 let row_count = if let Some(row_count) = self.visible_line_count() {
5948 row_count as u32 - 1
5949 } else {
5950 return;
5951 };
5952
5953 let autoscroll = if action.center_cursor {
5954 Autoscroll::center()
5955 } else {
5956 Autoscroll::fit()
5957 };
5958
5959 let text_layout_details = &self.text_layout_details(cx);
5960 self.change_selections(Some(autoscroll), cx, |s| {
5961 let line_mode = s.line_mode;
5962 s.move_with(|map, selection| {
5963 if !selection.is_empty() && !line_mode {
5964 selection.goal = SelectionGoal::None;
5965 }
5966 let (cursor, goal) = movement::down_by_rows(
5967 map,
5968 selection.end,
5969 row_count,
5970 selection.goal,
5971 false,
5972 &text_layout_details,
5973 );
5974 selection.collapse_to(cursor, goal);
5975 });
5976 });
5977 }
5978
5979 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5980 let text_layout_details = &self.text_layout_details(cx);
5981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5982 s.move_heads_with(|map, head, goal| {
5983 movement::down(map, head, goal, false, &text_layout_details)
5984 })
5985 });
5986 }
5987
5988 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5989 if let Some(context_menu) = self.context_menu.write().as_mut() {
5990 context_menu.select_first(self.project.as_ref(), cx);
5991 }
5992 }
5993
5994 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5995 if let Some(context_menu) = self.context_menu.write().as_mut() {
5996 context_menu.select_prev(self.project.as_ref(), cx);
5997 }
5998 }
5999
6000 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6001 if let Some(context_menu) = self.context_menu.write().as_mut() {
6002 context_menu.select_next(self.project.as_ref(), cx);
6003 }
6004 }
6005
6006 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6007 if let Some(context_menu) = self.context_menu.write().as_mut() {
6008 context_menu.select_last(self.project.as_ref(), cx);
6009 }
6010 }
6011
6012 pub fn move_to_previous_word_start(
6013 &mut self,
6014 _: &MoveToPreviousWordStart,
6015 cx: &mut ViewContext<Self>,
6016 ) {
6017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6018 s.move_cursors_with(|map, head, _| {
6019 (
6020 movement::previous_word_start(map, head),
6021 SelectionGoal::None,
6022 )
6023 });
6024 })
6025 }
6026
6027 pub fn move_to_previous_subword_start(
6028 &mut self,
6029 _: &MoveToPreviousSubwordStart,
6030 cx: &mut ViewContext<Self>,
6031 ) {
6032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6033 s.move_cursors_with(|map, head, _| {
6034 (
6035 movement::previous_subword_start(map, head),
6036 SelectionGoal::None,
6037 )
6038 });
6039 })
6040 }
6041
6042 pub fn select_to_previous_word_start(
6043 &mut self,
6044 _: &SelectToPreviousWordStart,
6045 cx: &mut ViewContext<Self>,
6046 ) {
6047 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6048 s.move_heads_with(|map, head, _| {
6049 (
6050 movement::previous_word_start(map, head),
6051 SelectionGoal::None,
6052 )
6053 });
6054 })
6055 }
6056
6057 pub fn select_to_previous_subword_start(
6058 &mut self,
6059 _: &SelectToPreviousSubwordStart,
6060 cx: &mut ViewContext<Self>,
6061 ) {
6062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6063 s.move_heads_with(|map, head, _| {
6064 (
6065 movement::previous_subword_start(map, head),
6066 SelectionGoal::None,
6067 )
6068 });
6069 })
6070 }
6071
6072 pub fn delete_to_previous_word_start(
6073 &mut self,
6074 _: &DeleteToPreviousWordStart,
6075 cx: &mut ViewContext<Self>,
6076 ) {
6077 self.transact(cx, |this, cx| {
6078 this.select_autoclose_pair(cx);
6079 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6080 let line_mode = s.line_mode;
6081 s.move_with(|map, selection| {
6082 if selection.is_empty() && !line_mode {
6083 let cursor = movement::previous_word_start(map, selection.head());
6084 selection.set_head(cursor, SelectionGoal::None);
6085 }
6086 });
6087 });
6088 this.insert("", cx);
6089 });
6090 }
6091
6092 pub fn delete_to_previous_subword_start(
6093 &mut self,
6094 _: &DeleteToPreviousSubwordStart,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.transact(cx, |this, cx| {
6098 this.select_autoclose_pair(cx);
6099 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6100 let line_mode = s.line_mode;
6101 s.move_with(|map, selection| {
6102 if selection.is_empty() && !line_mode {
6103 let cursor = movement::previous_subword_start(map, selection.head());
6104 selection.set_head(cursor, SelectionGoal::None);
6105 }
6106 });
6107 });
6108 this.insert("", cx);
6109 });
6110 }
6111
6112 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6114 s.move_cursors_with(|map, head, _| {
6115 (movement::next_word_end(map, head), SelectionGoal::None)
6116 });
6117 })
6118 }
6119
6120 pub fn move_to_next_subword_end(
6121 &mut self,
6122 _: &MoveToNextSubwordEnd,
6123 cx: &mut ViewContext<Self>,
6124 ) {
6125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6126 s.move_cursors_with(|map, head, _| {
6127 (movement::next_subword_end(map, head), SelectionGoal::None)
6128 });
6129 })
6130 }
6131
6132 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6134 s.move_heads_with(|map, head, _| {
6135 (movement::next_word_end(map, head), SelectionGoal::None)
6136 });
6137 })
6138 }
6139
6140 pub fn select_to_next_subword_end(
6141 &mut self,
6142 _: &SelectToNextSubwordEnd,
6143 cx: &mut ViewContext<Self>,
6144 ) {
6145 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6146 s.move_heads_with(|map, head, _| {
6147 (movement::next_subword_end(map, head), SelectionGoal::None)
6148 });
6149 })
6150 }
6151
6152 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6153 self.transact(cx, |this, cx| {
6154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 let line_mode = s.line_mode;
6156 s.move_with(|map, selection| {
6157 if selection.is_empty() && !line_mode {
6158 let cursor = movement::next_word_end(map, selection.head());
6159 selection.set_head(cursor, SelectionGoal::None);
6160 }
6161 });
6162 });
6163 this.insert("", cx);
6164 });
6165 }
6166
6167 pub fn delete_to_next_subword_end(
6168 &mut self,
6169 _: &DeleteToNextSubwordEnd,
6170 cx: &mut ViewContext<Self>,
6171 ) {
6172 self.transact(cx, |this, cx| {
6173 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6174 s.move_with(|map, selection| {
6175 if selection.is_empty() {
6176 let cursor = movement::next_subword_end(map, selection.head());
6177 selection.set_head(cursor, SelectionGoal::None);
6178 }
6179 });
6180 });
6181 this.insert("", cx);
6182 });
6183 }
6184
6185 pub fn move_to_beginning_of_line(
6186 &mut self,
6187 _: &MoveToBeginningOfLine,
6188 cx: &mut ViewContext<Self>,
6189 ) {
6190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6191 s.move_cursors_with(|map, head, _| {
6192 (
6193 movement::indented_line_beginning(map, head, true),
6194 SelectionGoal::None,
6195 )
6196 });
6197 })
6198 }
6199
6200 pub fn select_to_beginning_of_line(
6201 &mut self,
6202 action: &SelectToBeginningOfLine,
6203 cx: &mut ViewContext<Self>,
6204 ) {
6205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6206 s.move_heads_with(|map, head, _| {
6207 (
6208 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6209 SelectionGoal::None,
6210 )
6211 });
6212 });
6213 }
6214
6215 pub fn delete_to_beginning_of_line(
6216 &mut self,
6217 _: &DeleteToBeginningOfLine,
6218 cx: &mut ViewContext<Self>,
6219 ) {
6220 self.transact(cx, |this, cx| {
6221 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6222 s.move_with(|_, selection| {
6223 selection.reversed = true;
6224 });
6225 });
6226
6227 this.select_to_beginning_of_line(
6228 &SelectToBeginningOfLine {
6229 stop_at_soft_wraps: false,
6230 },
6231 cx,
6232 );
6233 this.backspace(&Backspace, cx);
6234 });
6235 }
6236
6237 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6239 s.move_cursors_with(|map, head, _| {
6240 (movement::line_end(map, head, true), SelectionGoal::None)
6241 });
6242 })
6243 }
6244
6245 pub fn select_to_end_of_line(
6246 &mut self,
6247 action: &SelectToEndOfLine,
6248 cx: &mut ViewContext<Self>,
6249 ) {
6250 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6251 s.move_heads_with(|map, head, _| {
6252 (
6253 movement::line_end(map, head, action.stop_at_soft_wraps),
6254 SelectionGoal::None,
6255 )
6256 });
6257 })
6258 }
6259
6260 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6261 self.transact(cx, |this, cx| {
6262 this.select_to_end_of_line(
6263 &SelectToEndOfLine {
6264 stop_at_soft_wraps: false,
6265 },
6266 cx,
6267 );
6268 this.delete(&Delete, cx);
6269 });
6270 }
6271
6272 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6273 self.transact(cx, |this, cx| {
6274 this.select_to_end_of_line(
6275 &SelectToEndOfLine {
6276 stop_at_soft_wraps: false,
6277 },
6278 cx,
6279 );
6280 this.cut(&Cut, cx);
6281 });
6282 }
6283
6284 pub fn move_to_start_of_paragraph(
6285 &mut self,
6286 _: &MoveToStartOfParagraph,
6287 cx: &mut ViewContext<Self>,
6288 ) {
6289 if matches!(self.mode, EditorMode::SingleLine) {
6290 cx.propagate();
6291 return;
6292 }
6293
6294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6295 s.move_with(|map, selection| {
6296 selection.collapse_to(
6297 movement::start_of_paragraph(map, selection.head(), 1),
6298 SelectionGoal::None,
6299 )
6300 });
6301 })
6302 }
6303
6304 pub fn move_to_end_of_paragraph(
6305 &mut self,
6306 _: &MoveToEndOfParagraph,
6307 cx: &mut ViewContext<Self>,
6308 ) {
6309 if matches!(self.mode, EditorMode::SingleLine) {
6310 cx.propagate();
6311 return;
6312 }
6313
6314 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6315 s.move_with(|map, selection| {
6316 selection.collapse_to(
6317 movement::end_of_paragraph(map, selection.head(), 1),
6318 SelectionGoal::None,
6319 )
6320 });
6321 })
6322 }
6323
6324 pub fn select_to_start_of_paragraph(
6325 &mut self,
6326 _: &SelectToStartOfParagraph,
6327 cx: &mut ViewContext<Self>,
6328 ) {
6329 if matches!(self.mode, EditorMode::SingleLine) {
6330 cx.propagate();
6331 return;
6332 }
6333
6334 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6335 s.move_heads_with(|map, head, _| {
6336 (
6337 movement::start_of_paragraph(map, head, 1),
6338 SelectionGoal::None,
6339 )
6340 });
6341 })
6342 }
6343
6344 pub fn select_to_end_of_paragraph(
6345 &mut self,
6346 _: &SelectToEndOfParagraph,
6347 cx: &mut ViewContext<Self>,
6348 ) {
6349 if matches!(self.mode, EditorMode::SingleLine) {
6350 cx.propagate();
6351 return;
6352 }
6353
6354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6355 s.move_heads_with(|map, head, _| {
6356 (
6357 movement::end_of_paragraph(map, head, 1),
6358 SelectionGoal::None,
6359 )
6360 });
6361 })
6362 }
6363
6364 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6365 if matches!(self.mode, EditorMode::SingleLine) {
6366 cx.propagate();
6367 return;
6368 }
6369
6370 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6371 s.select_ranges(vec![0..0]);
6372 });
6373 }
6374
6375 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6376 let mut selection = self.selections.last::<Point>(cx);
6377 selection.set_head(Point::zero(), SelectionGoal::None);
6378
6379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6380 s.select(vec![selection]);
6381 });
6382 }
6383
6384 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6385 if matches!(self.mode, EditorMode::SingleLine) {
6386 cx.propagate();
6387 return;
6388 }
6389
6390 let cursor = self.buffer.read(cx).read(cx).len();
6391 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6392 s.select_ranges(vec![cursor..cursor])
6393 });
6394 }
6395
6396 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6397 self.nav_history = nav_history;
6398 }
6399
6400 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6401 self.nav_history.as_ref()
6402 }
6403
6404 fn push_to_nav_history(
6405 &mut self,
6406 cursor_anchor: Anchor,
6407 new_position: Option<Point>,
6408 cx: &mut ViewContext<Self>,
6409 ) {
6410 if let Some(nav_history) = self.nav_history.as_mut() {
6411 let buffer = self.buffer.read(cx).read(cx);
6412 let cursor_position = cursor_anchor.to_point(&buffer);
6413 let scroll_state = self.scroll_manager.anchor();
6414 let scroll_top_row = scroll_state.top_row(&buffer);
6415 drop(buffer);
6416
6417 if let Some(new_position) = new_position {
6418 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6419 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6420 return;
6421 }
6422 }
6423
6424 nav_history.push(
6425 Some(NavigationData {
6426 cursor_anchor,
6427 cursor_position,
6428 scroll_anchor: scroll_state,
6429 scroll_top_row,
6430 }),
6431 cx,
6432 );
6433 }
6434 }
6435
6436 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6437 let buffer = self.buffer.read(cx).snapshot(cx);
6438 let mut selection = self.selections.first::<usize>(cx);
6439 selection.set_head(buffer.len(), SelectionGoal::None);
6440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6441 s.select(vec![selection]);
6442 });
6443 }
6444
6445 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6446 let end = self.buffer.read(cx).read(cx).len();
6447 self.change_selections(None, cx, |s| {
6448 s.select_ranges(vec![0..end]);
6449 });
6450 }
6451
6452 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6453 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6454 let mut selections = self.selections.all::<Point>(cx);
6455 let max_point = display_map.buffer_snapshot.max_point();
6456 for selection in &mut selections {
6457 let rows = selection.spanned_rows(true, &display_map);
6458 selection.start = Point::new(rows.start, 0);
6459 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6460 selection.reversed = false;
6461 }
6462 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6463 s.select(selections);
6464 });
6465 }
6466
6467 pub fn split_selection_into_lines(
6468 &mut self,
6469 _: &SplitSelectionIntoLines,
6470 cx: &mut ViewContext<Self>,
6471 ) {
6472 let mut to_unfold = Vec::new();
6473 let mut new_selection_ranges = Vec::new();
6474 {
6475 let selections = self.selections.all::<Point>(cx);
6476 let buffer = self.buffer.read(cx).read(cx);
6477 for selection in selections {
6478 for row in selection.start.row..selection.end.row {
6479 let cursor = Point::new(row, buffer.line_len(row));
6480 new_selection_ranges.push(cursor..cursor);
6481 }
6482 new_selection_ranges.push(selection.end..selection.end);
6483 to_unfold.push(selection.start..selection.end);
6484 }
6485 }
6486 self.unfold_ranges(to_unfold, true, true, cx);
6487 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6488 s.select_ranges(new_selection_ranges);
6489 });
6490 }
6491
6492 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6493 self.add_selection(true, cx);
6494 }
6495
6496 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6497 self.add_selection(false, cx);
6498 }
6499
6500 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6502 let mut selections = self.selections.all::<Point>(cx);
6503 let text_layout_details = self.text_layout_details(cx);
6504 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6505 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6506 let range = oldest_selection.display_range(&display_map).sorted();
6507
6508 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6509 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6510 let positions = start_x.min(end_x)..start_x.max(end_x);
6511
6512 selections.clear();
6513 let mut stack = Vec::new();
6514 for row in range.start.row()..=range.end.row() {
6515 if let Some(selection) = self.selections.build_columnar_selection(
6516 &display_map,
6517 row,
6518 &positions,
6519 oldest_selection.reversed,
6520 &text_layout_details,
6521 ) {
6522 stack.push(selection.id);
6523 selections.push(selection);
6524 }
6525 }
6526
6527 if above {
6528 stack.reverse();
6529 }
6530
6531 AddSelectionsState { above, stack }
6532 });
6533
6534 let last_added_selection = *state.stack.last().unwrap();
6535 let mut new_selections = Vec::new();
6536 if above == state.above {
6537 let end_row = if above {
6538 0
6539 } else {
6540 display_map.max_point().row()
6541 };
6542
6543 'outer: for selection in selections {
6544 if selection.id == last_added_selection {
6545 let range = selection.display_range(&display_map).sorted();
6546 debug_assert_eq!(range.start.row(), range.end.row());
6547 let mut row = range.start.row();
6548 let positions =
6549 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6550 px(start)..px(end)
6551 } else {
6552 let start_x =
6553 display_map.x_for_display_point(range.start, &text_layout_details);
6554 let end_x =
6555 display_map.x_for_display_point(range.end, &text_layout_details);
6556 start_x.min(end_x)..start_x.max(end_x)
6557 };
6558
6559 while row != end_row {
6560 if above {
6561 row -= 1;
6562 } else {
6563 row += 1;
6564 }
6565
6566 if let Some(new_selection) = self.selections.build_columnar_selection(
6567 &display_map,
6568 row,
6569 &positions,
6570 selection.reversed,
6571 &text_layout_details,
6572 ) {
6573 state.stack.push(new_selection.id);
6574 if above {
6575 new_selections.push(new_selection);
6576 new_selections.push(selection);
6577 } else {
6578 new_selections.push(selection);
6579 new_selections.push(new_selection);
6580 }
6581
6582 continue 'outer;
6583 }
6584 }
6585 }
6586
6587 new_selections.push(selection);
6588 }
6589 } else {
6590 new_selections = selections;
6591 new_selections.retain(|s| s.id != last_added_selection);
6592 state.stack.pop();
6593 }
6594
6595 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6596 s.select(new_selections);
6597 });
6598 if state.stack.len() > 1 {
6599 self.add_selections_state = Some(state);
6600 }
6601 }
6602
6603 pub fn select_next_match_internal(
6604 &mut self,
6605 display_map: &DisplaySnapshot,
6606 replace_newest: bool,
6607 autoscroll: Option<Autoscroll>,
6608 cx: &mut ViewContext<Self>,
6609 ) -> Result<()> {
6610 fn select_next_match_ranges(
6611 this: &mut Editor,
6612 range: Range<usize>,
6613 replace_newest: bool,
6614 auto_scroll: Option<Autoscroll>,
6615 cx: &mut ViewContext<Editor>,
6616 ) {
6617 this.unfold_ranges([range.clone()], false, true, cx);
6618 this.change_selections(auto_scroll, cx, |s| {
6619 if replace_newest {
6620 s.delete(s.newest_anchor().id);
6621 }
6622 s.insert_range(range.clone());
6623 });
6624 }
6625
6626 let buffer = &display_map.buffer_snapshot;
6627 let mut selections = self.selections.all::<usize>(cx);
6628 if let Some(mut select_next_state) = self.select_next_state.take() {
6629 let query = &select_next_state.query;
6630 if !select_next_state.done {
6631 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6632 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6633 let mut next_selected_range = None;
6634
6635 let bytes_after_last_selection =
6636 buffer.bytes_in_range(last_selection.end..buffer.len());
6637 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6638 let query_matches = query
6639 .stream_find_iter(bytes_after_last_selection)
6640 .map(|result| (last_selection.end, result))
6641 .chain(
6642 query
6643 .stream_find_iter(bytes_before_first_selection)
6644 .map(|result| (0, result)),
6645 );
6646
6647 for (start_offset, query_match) in query_matches {
6648 let query_match = query_match.unwrap(); // can only fail due to I/O
6649 let offset_range =
6650 start_offset + query_match.start()..start_offset + query_match.end();
6651 let display_range = offset_range.start.to_display_point(&display_map)
6652 ..offset_range.end.to_display_point(&display_map);
6653
6654 if !select_next_state.wordwise
6655 || (!movement::is_inside_word(&display_map, display_range.start)
6656 && !movement::is_inside_word(&display_map, display_range.end))
6657 {
6658 // TODO: This is n^2, because we might check all the selections
6659 if !selections
6660 .iter()
6661 .any(|selection| selection.range().overlaps(&offset_range))
6662 {
6663 next_selected_range = Some(offset_range);
6664 break;
6665 }
6666 }
6667 }
6668
6669 if let Some(next_selected_range) = next_selected_range {
6670 select_next_match_ranges(
6671 self,
6672 next_selected_range,
6673 replace_newest,
6674 autoscroll,
6675 cx,
6676 );
6677 } else {
6678 select_next_state.done = true;
6679 }
6680 }
6681
6682 self.select_next_state = Some(select_next_state);
6683 } else {
6684 let mut only_carets = true;
6685 let mut same_text_selected = true;
6686 let mut selected_text = None;
6687
6688 let mut selections_iter = selections.iter().peekable();
6689 while let Some(selection) = selections_iter.next() {
6690 if selection.start != selection.end {
6691 only_carets = false;
6692 }
6693
6694 if same_text_selected {
6695 if selected_text.is_none() {
6696 selected_text =
6697 Some(buffer.text_for_range(selection.range()).collect::<String>());
6698 }
6699
6700 if let Some(next_selection) = selections_iter.peek() {
6701 if next_selection.range().len() == selection.range().len() {
6702 let next_selected_text = buffer
6703 .text_for_range(next_selection.range())
6704 .collect::<String>();
6705 if Some(next_selected_text) != selected_text {
6706 same_text_selected = false;
6707 selected_text = None;
6708 }
6709 } else {
6710 same_text_selected = false;
6711 selected_text = None;
6712 }
6713 }
6714 }
6715 }
6716
6717 if only_carets {
6718 for selection in &mut selections {
6719 let word_range = movement::surrounding_word(
6720 &display_map,
6721 selection.start.to_display_point(&display_map),
6722 );
6723 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6724 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6725 selection.goal = SelectionGoal::None;
6726 selection.reversed = false;
6727 select_next_match_ranges(
6728 self,
6729 selection.start..selection.end,
6730 replace_newest,
6731 autoscroll,
6732 cx,
6733 );
6734 }
6735
6736 if selections.len() == 1 {
6737 let selection = selections
6738 .last()
6739 .expect("ensured that there's only one selection");
6740 let query = buffer
6741 .text_for_range(selection.start..selection.end)
6742 .collect::<String>();
6743 let is_empty = query.is_empty();
6744 let select_state = SelectNextState {
6745 query: AhoCorasick::new(&[query])?,
6746 wordwise: true,
6747 done: is_empty,
6748 };
6749 self.select_next_state = Some(select_state);
6750 } else {
6751 self.select_next_state = None;
6752 }
6753 } else if let Some(selected_text) = selected_text {
6754 self.select_next_state = Some(SelectNextState {
6755 query: AhoCorasick::new(&[selected_text])?,
6756 wordwise: false,
6757 done: false,
6758 });
6759 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6760 }
6761 }
6762 Ok(())
6763 }
6764
6765 pub fn select_all_matches(
6766 &mut self,
6767 _action: &SelectAllMatches,
6768 cx: &mut ViewContext<Self>,
6769 ) -> Result<()> {
6770 self.push_to_selection_history();
6771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6772
6773 self.select_next_match_internal(&display_map, false, None, cx)?;
6774 let Some(select_next_state) = self.select_next_state.as_mut() else {
6775 return Ok(());
6776 };
6777 if select_next_state.done {
6778 return Ok(());
6779 }
6780
6781 let mut new_selections = self.selections.all::<usize>(cx);
6782
6783 let buffer = &display_map.buffer_snapshot;
6784 let query_matches = select_next_state
6785 .query
6786 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6787
6788 for query_match in query_matches {
6789 let query_match = query_match.unwrap(); // can only fail due to I/O
6790 let offset_range = query_match.start()..query_match.end();
6791 let display_range = offset_range.start.to_display_point(&display_map)
6792 ..offset_range.end.to_display_point(&display_map);
6793
6794 if !select_next_state.wordwise
6795 || (!movement::is_inside_word(&display_map, display_range.start)
6796 && !movement::is_inside_word(&display_map, display_range.end))
6797 {
6798 self.selections.change_with(cx, |selections| {
6799 new_selections.push(Selection {
6800 id: selections.new_selection_id(),
6801 start: offset_range.start,
6802 end: offset_range.end,
6803 reversed: false,
6804 goal: SelectionGoal::None,
6805 });
6806 });
6807 }
6808 }
6809
6810 new_selections.sort_by_key(|selection| selection.start);
6811 let mut ix = 0;
6812 while ix + 1 < new_selections.len() {
6813 let current_selection = &new_selections[ix];
6814 let next_selection = &new_selections[ix + 1];
6815 if current_selection.range().overlaps(&next_selection.range()) {
6816 if current_selection.id < next_selection.id {
6817 new_selections.remove(ix + 1);
6818 } else {
6819 new_selections.remove(ix);
6820 }
6821 } else {
6822 ix += 1;
6823 }
6824 }
6825
6826 select_next_state.done = true;
6827 self.unfold_ranges(
6828 new_selections.iter().map(|selection| selection.range()),
6829 false,
6830 false,
6831 cx,
6832 );
6833 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6834 selections.select(new_selections)
6835 });
6836
6837 Ok(())
6838 }
6839
6840 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6841 self.push_to_selection_history();
6842 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6843 self.select_next_match_internal(
6844 &display_map,
6845 action.replace_newest,
6846 Some(Autoscroll::newest()),
6847 cx,
6848 )?;
6849 Ok(())
6850 }
6851
6852 pub fn select_previous(
6853 &mut self,
6854 action: &SelectPrevious,
6855 cx: &mut ViewContext<Self>,
6856 ) -> Result<()> {
6857 self.push_to_selection_history();
6858 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6859 let buffer = &display_map.buffer_snapshot;
6860 let mut selections = self.selections.all::<usize>(cx);
6861 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6862 let query = &select_prev_state.query;
6863 if !select_prev_state.done {
6864 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6865 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6866 let mut next_selected_range = None;
6867 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6868 let bytes_before_last_selection =
6869 buffer.reversed_bytes_in_range(0..last_selection.start);
6870 let bytes_after_first_selection =
6871 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6872 let query_matches = query
6873 .stream_find_iter(bytes_before_last_selection)
6874 .map(|result| (last_selection.start, result))
6875 .chain(
6876 query
6877 .stream_find_iter(bytes_after_first_selection)
6878 .map(|result| (buffer.len(), result)),
6879 );
6880 for (end_offset, query_match) in query_matches {
6881 let query_match = query_match.unwrap(); // can only fail due to I/O
6882 let offset_range =
6883 end_offset - query_match.end()..end_offset - query_match.start();
6884 let display_range = offset_range.start.to_display_point(&display_map)
6885 ..offset_range.end.to_display_point(&display_map);
6886
6887 if !select_prev_state.wordwise
6888 || (!movement::is_inside_word(&display_map, display_range.start)
6889 && !movement::is_inside_word(&display_map, display_range.end))
6890 {
6891 next_selected_range = Some(offset_range);
6892 break;
6893 }
6894 }
6895
6896 if let Some(next_selected_range) = next_selected_range {
6897 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6898 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6899 if action.replace_newest {
6900 s.delete(s.newest_anchor().id);
6901 }
6902 s.insert_range(next_selected_range);
6903 });
6904 } else {
6905 select_prev_state.done = true;
6906 }
6907 }
6908
6909 self.select_prev_state = Some(select_prev_state);
6910 } else {
6911 let mut only_carets = true;
6912 let mut same_text_selected = true;
6913 let mut selected_text = None;
6914
6915 let mut selections_iter = selections.iter().peekable();
6916 while let Some(selection) = selections_iter.next() {
6917 if selection.start != selection.end {
6918 only_carets = false;
6919 }
6920
6921 if same_text_selected {
6922 if selected_text.is_none() {
6923 selected_text =
6924 Some(buffer.text_for_range(selection.range()).collect::<String>());
6925 }
6926
6927 if let Some(next_selection) = selections_iter.peek() {
6928 if next_selection.range().len() == selection.range().len() {
6929 let next_selected_text = buffer
6930 .text_for_range(next_selection.range())
6931 .collect::<String>();
6932 if Some(next_selected_text) != selected_text {
6933 same_text_selected = false;
6934 selected_text = None;
6935 }
6936 } else {
6937 same_text_selected = false;
6938 selected_text = None;
6939 }
6940 }
6941 }
6942 }
6943
6944 if only_carets {
6945 for selection in &mut selections {
6946 let word_range = movement::surrounding_word(
6947 &display_map,
6948 selection.start.to_display_point(&display_map),
6949 );
6950 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6951 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6952 selection.goal = SelectionGoal::None;
6953 selection.reversed = false;
6954 }
6955 if selections.len() == 1 {
6956 let selection = selections
6957 .last()
6958 .expect("ensured that there's only one selection");
6959 let query = buffer
6960 .text_for_range(selection.start..selection.end)
6961 .collect::<String>();
6962 let is_empty = query.is_empty();
6963 let select_state = SelectNextState {
6964 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6965 wordwise: true,
6966 done: is_empty,
6967 };
6968 self.select_prev_state = Some(select_state);
6969 } else {
6970 self.select_prev_state = None;
6971 }
6972
6973 self.unfold_ranges(
6974 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6975 false,
6976 true,
6977 cx,
6978 );
6979 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6980 s.select(selections);
6981 });
6982 } else if let Some(selected_text) = selected_text {
6983 self.select_prev_state = Some(SelectNextState {
6984 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6985 wordwise: false,
6986 done: false,
6987 });
6988 self.select_previous(action, cx)?;
6989 }
6990 }
6991 Ok(())
6992 }
6993
6994 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6995 let text_layout_details = &self.text_layout_details(cx);
6996 self.transact(cx, |this, cx| {
6997 let mut selections = this.selections.all::<Point>(cx);
6998 let mut edits = Vec::new();
6999 let mut selection_edit_ranges = Vec::new();
7000 let mut last_toggled_row = None;
7001 let snapshot = this.buffer.read(cx).read(cx);
7002 let empty_str: Arc<str> = "".into();
7003 let mut suffixes_inserted = Vec::new();
7004
7005 fn comment_prefix_range(
7006 snapshot: &MultiBufferSnapshot,
7007 row: u32,
7008 comment_prefix: &str,
7009 comment_prefix_whitespace: &str,
7010 ) -> Range<Point> {
7011 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7012
7013 let mut line_bytes = snapshot
7014 .bytes_in_range(start..snapshot.max_point())
7015 .flatten()
7016 .copied();
7017
7018 // If this line currently begins with the line comment prefix, then record
7019 // the range containing the prefix.
7020 if line_bytes
7021 .by_ref()
7022 .take(comment_prefix.len())
7023 .eq(comment_prefix.bytes())
7024 {
7025 // Include any whitespace that matches the comment prefix.
7026 let matching_whitespace_len = line_bytes
7027 .zip(comment_prefix_whitespace.bytes())
7028 .take_while(|(a, b)| a == b)
7029 .count() as u32;
7030 let end = Point::new(
7031 start.row,
7032 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7033 );
7034 start..end
7035 } else {
7036 start..start
7037 }
7038 }
7039
7040 fn comment_suffix_range(
7041 snapshot: &MultiBufferSnapshot,
7042 row: u32,
7043 comment_suffix: &str,
7044 comment_suffix_has_leading_space: bool,
7045 ) -> Range<Point> {
7046 let end = Point::new(row, snapshot.line_len(row));
7047 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7048
7049 let mut line_end_bytes = snapshot
7050 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7051 .flatten()
7052 .copied();
7053
7054 let leading_space_len = if suffix_start_column > 0
7055 && line_end_bytes.next() == Some(b' ')
7056 && comment_suffix_has_leading_space
7057 {
7058 1
7059 } else {
7060 0
7061 };
7062
7063 // If this line currently begins with the line comment prefix, then record
7064 // the range containing the prefix.
7065 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7066 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7067 start..end
7068 } else {
7069 end..end
7070 }
7071 }
7072
7073 // TODO: Handle selections that cross excerpts
7074 for selection in &mut selections {
7075 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7076 let language = if let Some(language) =
7077 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7078 {
7079 language
7080 } else {
7081 continue;
7082 };
7083
7084 selection_edit_ranges.clear();
7085
7086 // If multiple selections contain a given row, avoid processing that
7087 // row more than once.
7088 let mut start_row = selection.start.row;
7089 if last_toggled_row == Some(start_row) {
7090 start_row += 1;
7091 }
7092 let end_row =
7093 if selection.end.row > selection.start.row && selection.end.column == 0 {
7094 selection.end.row - 1
7095 } else {
7096 selection.end.row
7097 };
7098 last_toggled_row = Some(end_row);
7099
7100 if start_row > end_row {
7101 continue;
7102 }
7103
7104 // If the language has line comments, toggle those.
7105 if let Some(full_comment_prefix) = language
7106 .line_comment_prefixes()
7107 .and_then(|prefixes| prefixes.first())
7108 {
7109 // Split the comment prefix's trailing whitespace into a separate string,
7110 // as that portion won't be used for detecting if a line is a comment.
7111 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7112 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7113 let mut all_selection_lines_are_comments = true;
7114
7115 for row in start_row..=end_row {
7116 if start_row < end_row && snapshot.is_line_blank(row) {
7117 continue;
7118 }
7119
7120 let prefix_range = comment_prefix_range(
7121 snapshot.deref(),
7122 row,
7123 comment_prefix,
7124 comment_prefix_whitespace,
7125 );
7126 if prefix_range.is_empty() {
7127 all_selection_lines_are_comments = false;
7128 }
7129 selection_edit_ranges.push(prefix_range);
7130 }
7131
7132 if all_selection_lines_are_comments {
7133 edits.extend(
7134 selection_edit_ranges
7135 .iter()
7136 .cloned()
7137 .map(|range| (range, empty_str.clone())),
7138 );
7139 } else {
7140 let min_column = selection_edit_ranges
7141 .iter()
7142 .map(|r| r.start.column)
7143 .min()
7144 .unwrap_or(0);
7145 edits.extend(selection_edit_ranges.iter().map(|range| {
7146 let position = Point::new(range.start.row, min_column);
7147 (position..position, full_comment_prefix.clone())
7148 }));
7149 }
7150 } else if let Some((full_comment_prefix, comment_suffix)) =
7151 language.block_comment_delimiters()
7152 {
7153 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7154 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7155 let prefix_range = comment_prefix_range(
7156 snapshot.deref(),
7157 start_row,
7158 comment_prefix,
7159 comment_prefix_whitespace,
7160 );
7161 let suffix_range = comment_suffix_range(
7162 snapshot.deref(),
7163 end_row,
7164 comment_suffix.trim_start_matches(' '),
7165 comment_suffix.starts_with(' '),
7166 );
7167
7168 if prefix_range.is_empty() || suffix_range.is_empty() {
7169 edits.push((
7170 prefix_range.start..prefix_range.start,
7171 full_comment_prefix.clone(),
7172 ));
7173 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7174 suffixes_inserted.push((end_row, comment_suffix.len()));
7175 } else {
7176 edits.push((prefix_range, empty_str.clone()));
7177 edits.push((suffix_range, empty_str.clone()));
7178 }
7179 } else {
7180 continue;
7181 }
7182 }
7183
7184 drop(snapshot);
7185 this.buffer.update(cx, |buffer, cx| {
7186 buffer.edit(edits, None, cx);
7187 });
7188
7189 // Adjust selections so that they end before any comment suffixes that
7190 // were inserted.
7191 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7192 let mut selections = this.selections.all::<Point>(cx);
7193 let snapshot = this.buffer.read(cx).read(cx);
7194 for selection in &mut selections {
7195 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7196 match row.cmp(&selection.end.row) {
7197 Ordering::Less => {
7198 suffixes_inserted.next();
7199 continue;
7200 }
7201 Ordering::Greater => break,
7202 Ordering::Equal => {
7203 if selection.end.column == snapshot.line_len(row) {
7204 if selection.is_empty() {
7205 selection.start.column -= suffix_len as u32;
7206 }
7207 selection.end.column -= suffix_len as u32;
7208 }
7209 break;
7210 }
7211 }
7212 }
7213 }
7214
7215 drop(snapshot);
7216 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7217
7218 let selections = this.selections.all::<Point>(cx);
7219 let selections_on_single_row = selections.windows(2).all(|selections| {
7220 selections[0].start.row == selections[1].start.row
7221 && selections[0].end.row == selections[1].end.row
7222 && selections[0].start.row == selections[0].end.row
7223 });
7224 let selections_selecting = selections
7225 .iter()
7226 .any(|selection| selection.start != selection.end);
7227 let advance_downwards = action.advance_downwards
7228 && selections_on_single_row
7229 && !selections_selecting
7230 && this.mode != EditorMode::SingleLine;
7231
7232 if advance_downwards {
7233 let snapshot = this.buffer.read(cx).snapshot(cx);
7234
7235 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7236 s.move_cursors_with(|display_snapshot, display_point, _| {
7237 let mut point = display_point.to_point(display_snapshot);
7238 point.row += 1;
7239 point = snapshot.clip_point(point, Bias::Left);
7240 let display_point = point.to_display_point(display_snapshot);
7241 let goal = SelectionGoal::HorizontalPosition(
7242 display_snapshot
7243 .x_for_display_point(display_point, &text_layout_details)
7244 .into(),
7245 );
7246 (display_point, goal)
7247 })
7248 });
7249 }
7250 });
7251 }
7252
7253 pub fn select_larger_syntax_node(
7254 &mut self,
7255 _: &SelectLargerSyntaxNode,
7256 cx: &mut ViewContext<Self>,
7257 ) {
7258 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7259 let buffer = self.buffer.read(cx).snapshot(cx);
7260 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7261
7262 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7263 let mut selected_larger_node = false;
7264 let new_selections = old_selections
7265 .iter()
7266 .map(|selection| {
7267 let old_range = selection.start..selection.end;
7268 let mut new_range = old_range.clone();
7269 while let Some(containing_range) =
7270 buffer.range_for_syntax_ancestor(new_range.clone())
7271 {
7272 new_range = containing_range;
7273 if !display_map.intersects_fold(new_range.start)
7274 && !display_map.intersects_fold(new_range.end)
7275 {
7276 break;
7277 }
7278 }
7279
7280 selected_larger_node |= new_range != old_range;
7281 Selection {
7282 id: selection.id,
7283 start: new_range.start,
7284 end: new_range.end,
7285 goal: SelectionGoal::None,
7286 reversed: selection.reversed,
7287 }
7288 })
7289 .collect::<Vec<_>>();
7290
7291 if selected_larger_node {
7292 stack.push(old_selections);
7293 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7294 s.select(new_selections);
7295 });
7296 }
7297 self.select_larger_syntax_node_stack = stack;
7298 }
7299
7300 pub fn select_smaller_syntax_node(
7301 &mut self,
7302 _: &SelectSmallerSyntaxNode,
7303 cx: &mut ViewContext<Self>,
7304 ) {
7305 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7306 if let Some(selections) = stack.pop() {
7307 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7308 s.select(selections.to_vec());
7309 });
7310 }
7311 self.select_larger_syntax_node_stack = stack;
7312 }
7313
7314 pub fn move_to_enclosing_bracket(
7315 &mut self,
7316 _: &MoveToEnclosingBracket,
7317 cx: &mut ViewContext<Self>,
7318 ) {
7319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7320 s.move_offsets_with(|snapshot, selection| {
7321 let Some(enclosing_bracket_ranges) =
7322 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7323 else {
7324 return;
7325 };
7326
7327 let mut best_length = usize::MAX;
7328 let mut best_inside = false;
7329 let mut best_in_bracket_range = false;
7330 let mut best_destination = None;
7331 for (open, close) in enclosing_bracket_ranges {
7332 let close = close.to_inclusive();
7333 let length = close.end() - open.start;
7334 let inside = selection.start >= open.end && selection.end <= *close.start();
7335 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7336 || close.contains(&selection.head());
7337
7338 // If best is next to a bracket and current isn't, skip
7339 if !in_bracket_range && best_in_bracket_range {
7340 continue;
7341 }
7342
7343 // Prefer smaller lengths unless best is inside and current isn't
7344 if length > best_length && (best_inside || !inside) {
7345 continue;
7346 }
7347
7348 best_length = length;
7349 best_inside = inside;
7350 best_in_bracket_range = in_bracket_range;
7351 best_destination = Some(
7352 if close.contains(&selection.start) && close.contains(&selection.end) {
7353 if inside {
7354 open.end
7355 } else {
7356 open.start
7357 }
7358 } else {
7359 if inside {
7360 *close.start()
7361 } else {
7362 *close.end()
7363 }
7364 },
7365 );
7366 }
7367
7368 if let Some(destination) = best_destination {
7369 selection.collapse_to(destination, SelectionGoal::None);
7370 }
7371 })
7372 });
7373 }
7374
7375 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7376 self.end_selection(cx);
7377 self.selection_history.mode = SelectionHistoryMode::Undoing;
7378 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7379 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7380 self.select_next_state = entry.select_next_state;
7381 self.select_prev_state = entry.select_prev_state;
7382 self.add_selections_state = entry.add_selections_state;
7383 self.request_autoscroll(Autoscroll::newest(), cx);
7384 }
7385 self.selection_history.mode = SelectionHistoryMode::Normal;
7386 }
7387
7388 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7389 self.end_selection(cx);
7390 self.selection_history.mode = SelectionHistoryMode::Redoing;
7391 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7392 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7393 self.select_next_state = entry.select_next_state;
7394 self.select_prev_state = entry.select_prev_state;
7395 self.add_selections_state = entry.add_selections_state;
7396 self.request_autoscroll(Autoscroll::newest(), cx);
7397 }
7398 self.selection_history.mode = SelectionHistoryMode::Normal;
7399 }
7400
7401 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7402 self.go_to_diagnostic_impl(Direction::Next, cx)
7403 }
7404
7405 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7406 self.go_to_diagnostic_impl(Direction::Prev, cx)
7407 }
7408
7409 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7410 let buffer = self.buffer.read(cx).snapshot(cx);
7411 let selection = self.selections.newest::<usize>(cx);
7412
7413 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7414 if direction == Direction::Next {
7415 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7416 let (group_id, jump_to) = popover.activation_info();
7417 if self.activate_diagnostics(group_id, cx) {
7418 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7419 let mut new_selection = s.newest_anchor().clone();
7420 new_selection.collapse_to(jump_to, SelectionGoal::None);
7421 s.select_anchors(vec![new_selection.clone()]);
7422 });
7423 }
7424 return;
7425 }
7426 }
7427
7428 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7429 active_diagnostics
7430 .primary_range
7431 .to_offset(&buffer)
7432 .to_inclusive()
7433 });
7434 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7435 if active_primary_range.contains(&selection.head()) {
7436 *active_primary_range.end()
7437 } else {
7438 selection.head()
7439 }
7440 } else {
7441 selection.head()
7442 };
7443
7444 loop {
7445 let mut diagnostics = if direction == Direction::Prev {
7446 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7447 } else {
7448 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7449 };
7450 let group = diagnostics.find_map(|entry| {
7451 if entry.diagnostic.is_primary
7452 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7453 && !entry.range.is_empty()
7454 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7455 && !entry.range.contains(&search_start)
7456 {
7457 Some((entry.range, entry.diagnostic.group_id))
7458 } else {
7459 None
7460 }
7461 });
7462
7463 if let Some((primary_range, group_id)) = group {
7464 if self.activate_diagnostics(group_id, cx) {
7465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7466 s.select(vec![Selection {
7467 id: selection.id,
7468 start: primary_range.start,
7469 end: primary_range.start,
7470 reversed: false,
7471 goal: SelectionGoal::None,
7472 }]);
7473 });
7474 }
7475 break;
7476 } else {
7477 // Cycle around to the start of the buffer, potentially moving back to the start of
7478 // the currently active diagnostic.
7479 active_primary_range.take();
7480 if direction == Direction::Prev {
7481 if search_start == buffer.len() {
7482 break;
7483 } else {
7484 search_start = buffer.len();
7485 }
7486 } else if search_start == 0 {
7487 break;
7488 } else {
7489 search_start = 0;
7490 }
7491 }
7492 }
7493 }
7494
7495 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7496 let snapshot = self
7497 .display_map
7498 .update(cx, |display_map, cx| display_map.snapshot(cx));
7499 let selection = self.selections.newest::<Point>(cx);
7500
7501 if !self.seek_in_direction(
7502 &snapshot,
7503 selection.head(),
7504 false,
7505 snapshot
7506 .buffer_snapshot
7507 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7508 cx,
7509 ) {
7510 let wrapped_point = Point::zero();
7511 self.seek_in_direction(
7512 &snapshot,
7513 wrapped_point,
7514 true,
7515 snapshot
7516 .buffer_snapshot
7517 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7518 cx,
7519 );
7520 }
7521 }
7522
7523 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7524 let snapshot = self
7525 .display_map
7526 .update(cx, |display_map, cx| display_map.snapshot(cx));
7527 let selection = self.selections.newest::<Point>(cx);
7528
7529 if !self.seek_in_direction(
7530 &snapshot,
7531 selection.head(),
7532 false,
7533 snapshot
7534 .buffer_snapshot
7535 .git_diff_hunks_in_range_rev(0..selection.head().row),
7536 cx,
7537 ) {
7538 let wrapped_point = snapshot.buffer_snapshot.max_point();
7539 self.seek_in_direction(
7540 &snapshot,
7541 wrapped_point,
7542 true,
7543 snapshot
7544 .buffer_snapshot
7545 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7546 cx,
7547 );
7548 }
7549 }
7550
7551 fn seek_in_direction(
7552 &mut self,
7553 snapshot: &DisplaySnapshot,
7554 initial_point: Point,
7555 is_wrapped: bool,
7556 hunks: impl Iterator<Item = DiffHunk<u32>>,
7557 cx: &mut ViewContext<Editor>,
7558 ) -> bool {
7559 let display_point = initial_point.to_display_point(snapshot);
7560 let mut hunks = hunks
7561 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7562 .filter(|hunk| {
7563 if is_wrapped {
7564 true
7565 } else {
7566 !hunk.contains_display_row(display_point.row())
7567 }
7568 })
7569 .dedup();
7570
7571 if let Some(hunk) = hunks.next() {
7572 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7573 let row = hunk.start_display_row();
7574 let point = DisplayPoint::new(row, 0);
7575 s.select_display_ranges([point..point]);
7576 });
7577
7578 true
7579 } else {
7580 false
7581 }
7582 }
7583
7584 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7585 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7586 }
7587
7588 pub fn go_to_implementation(&mut self, _: &GoToImplementation, cx: &mut ViewContext<Self>) {
7589 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx);
7590 }
7591
7592 pub fn go_to_implementation_split(
7593 &mut self,
7594 _: &GoToImplementationSplit,
7595 cx: &mut ViewContext<Self>,
7596 ) {
7597 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx);
7598 }
7599
7600 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7601 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7602 }
7603
7604 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7605 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7606 }
7607
7608 pub fn go_to_type_definition_split(
7609 &mut self,
7610 _: &GoToTypeDefinitionSplit,
7611 cx: &mut ViewContext<Self>,
7612 ) {
7613 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7614 }
7615
7616 fn go_to_definition_of_kind(
7617 &mut self,
7618 kind: GotoDefinitionKind,
7619 split: bool,
7620 cx: &mut ViewContext<Self>,
7621 ) {
7622 let Some(workspace) = self.workspace() else {
7623 return;
7624 };
7625 let buffer = self.buffer.read(cx);
7626 let head = self.selections.newest::<usize>(cx).head();
7627 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7628 text_anchor
7629 } else {
7630 return;
7631 };
7632
7633 let project = workspace.read(cx).project().clone();
7634 let definitions = project.update(cx, |project, cx| match kind {
7635 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7636 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7637 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7638 });
7639
7640 cx.spawn(|editor, mut cx| async move {
7641 let definitions = definitions.await?;
7642 editor.update(&mut cx, |editor, cx| {
7643 editor.navigate_to_hover_links(
7644 Some(kind),
7645 definitions.into_iter().map(HoverLink::Text).collect(),
7646 split,
7647 cx,
7648 );
7649 })?;
7650 Ok::<(), anyhow::Error>(())
7651 })
7652 .detach_and_log_err(cx);
7653 }
7654
7655 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7656 let position = self.selections.newest_anchor().head();
7657 let Some((buffer, buffer_position)) =
7658 self.buffer.read(cx).text_anchor_for_position(position, cx)
7659 else {
7660 return;
7661 };
7662
7663 cx.spawn(|editor, mut cx| async move {
7664 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7665 editor.update(&mut cx, |_, cx| {
7666 cx.open_url(&url);
7667 })
7668 } else {
7669 Ok(())
7670 }
7671 })
7672 .detach();
7673 }
7674
7675 pub(crate) fn navigate_to_hover_links(
7676 &mut self,
7677 kind: Option<GotoDefinitionKind>,
7678 mut definitions: Vec<HoverLink>,
7679 split: bool,
7680 cx: &mut ViewContext<Editor>,
7681 ) {
7682 // If there is one definition, just open it directly
7683 if definitions.len() == 1 {
7684 let definition = definitions.pop().unwrap();
7685 let target_task = match definition {
7686 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7687 HoverLink::InlayHint(lsp_location, server_id) => {
7688 self.compute_target_location(lsp_location, server_id, cx)
7689 }
7690 HoverLink::Url(url) => {
7691 cx.open_url(&url);
7692 Task::ready(Ok(None))
7693 }
7694 };
7695 cx.spawn(|editor, mut cx| async move {
7696 let target = target_task.await.context("target resolution task")?;
7697 if let Some(target) = target {
7698 editor.update(&mut cx, |editor, cx| {
7699 let Some(workspace) = editor.workspace() else {
7700 return;
7701 };
7702 let pane = workspace.read(cx).active_pane().clone();
7703
7704 let range = target.range.to_offset(target.buffer.read(cx));
7705 let range = editor.range_for_match(&range);
7706 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7707 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7708 s.select_ranges([range]);
7709 });
7710 } else {
7711 cx.window_context().defer(move |cx| {
7712 let target_editor: View<Self> =
7713 workspace.update(cx, |workspace, cx| {
7714 let pane = if split {
7715 workspace.adjacent_pane(cx)
7716 } else {
7717 workspace.active_pane().clone()
7718 };
7719
7720 workspace.open_project_item(pane, target.buffer.clone(), cx)
7721 });
7722 target_editor.update(cx, |target_editor, cx| {
7723 // When selecting a definition in a different buffer, disable the nav history
7724 // to avoid creating a history entry at the previous cursor location.
7725 pane.update(cx, |pane, _| pane.disable_history());
7726 target_editor.change_selections(
7727 Some(Autoscroll::fit()),
7728 cx,
7729 |s| {
7730 s.select_ranges([range]);
7731 },
7732 );
7733 pane.update(cx, |pane, _| pane.enable_history());
7734 });
7735 });
7736 }
7737 })
7738 } else {
7739 Ok(())
7740 }
7741 })
7742 .detach_and_log_err(cx);
7743 } else if !definitions.is_empty() {
7744 let replica_id = self.replica_id(cx);
7745 cx.spawn(|editor, mut cx| async move {
7746 let (title, location_tasks, workspace) = editor
7747 .update(&mut cx, |editor, cx| {
7748 let tab_kind = match kind {
7749 Some(GotoDefinitionKind::Implementation) => "Implementations",
7750 _ => "Definitions",
7751 };
7752 let title = definitions
7753 .iter()
7754 .find_map(|definition| match definition {
7755 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7756 let buffer = origin.buffer.read(cx);
7757 format!(
7758 "{} for {}",
7759 tab_kind,
7760 buffer
7761 .text_for_range(origin.range.clone())
7762 .collect::<String>()
7763 )
7764 }),
7765 HoverLink::InlayHint(_, _) => None,
7766 HoverLink::Url(_) => None,
7767 })
7768 .unwrap_or(tab_kind.to_string());
7769 let location_tasks = definitions
7770 .into_iter()
7771 .map(|definition| match definition {
7772 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7773 HoverLink::InlayHint(lsp_location, server_id) => {
7774 editor.compute_target_location(lsp_location, server_id, cx)
7775 }
7776 HoverLink::Url(_) => Task::ready(Ok(None)),
7777 })
7778 .collect::<Vec<_>>();
7779 (title, location_tasks, editor.workspace().clone())
7780 })
7781 .context("location tasks preparation")?;
7782
7783 let locations = futures::future::join_all(location_tasks)
7784 .await
7785 .into_iter()
7786 .filter_map(|location| location.transpose())
7787 .collect::<Result<_>>()
7788 .context("location tasks")?;
7789
7790 let Some(workspace) = workspace else {
7791 return Ok(());
7792 };
7793 workspace
7794 .update(&mut cx, |workspace, cx| {
7795 Self::open_locations_in_multibuffer(
7796 workspace, locations, replica_id, title, split, cx,
7797 )
7798 })
7799 .ok();
7800
7801 anyhow::Ok(())
7802 })
7803 .detach_and_log_err(cx);
7804 }
7805 }
7806
7807 fn compute_target_location(
7808 &self,
7809 lsp_location: lsp::Location,
7810 server_id: LanguageServerId,
7811 cx: &mut ViewContext<Editor>,
7812 ) -> Task<anyhow::Result<Option<Location>>> {
7813 let Some(project) = self.project.clone() else {
7814 return Task::Ready(Some(Ok(None)));
7815 };
7816
7817 cx.spawn(move |editor, mut cx| async move {
7818 let location_task = editor.update(&mut cx, |editor, cx| {
7819 project.update(cx, |project, cx| {
7820 let language_server_name =
7821 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7822 project
7823 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7824 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7825 });
7826 language_server_name.map(|language_server_name| {
7827 project.open_local_buffer_via_lsp(
7828 lsp_location.uri.clone(),
7829 server_id,
7830 language_server_name,
7831 cx,
7832 )
7833 })
7834 })
7835 })?;
7836 let location = match location_task {
7837 Some(task) => Some({
7838 let target_buffer_handle = task.await.context("open local buffer")?;
7839 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7840 let target_start = target_buffer
7841 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7842 let target_end = target_buffer
7843 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7844 target_buffer.anchor_after(target_start)
7845 ..target_buffer.anchor_before(target_end)
7846 })?;
7847 Location {
7848 buffer: target_buffer_handle,
7849 range,
7850 }
7851 }),
7852 None => None,
7853 };
7854 Ok(location)
7855 })
7856 }
7857
7858 pub fn find_all_references(
7859 &mut self,
7860 _: &FindAllReferences,
7861 cx: &mut ViewContext<Self>,
7862 ) -> Option<Task<Result<()>>> {
7863 let buffer = self.buffer.read(cx);
7864 let head = self.selections.newest::<usize>(cx).head();
7865 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7866 let replica_id = self.replica_id(cx);
7867
7868 let workspace = self.workspace()?;
7869 let project = workspace.read(cx).project().clone();
7870 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7871 Some(cx.spawn(|editor, mut cx| async move {
7872 let mut locations = references.await?;
7873 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7874 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7875
7876 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7877 // So we will remove it from locations
7878 // If there is only one reference, we will not do this filter cause it may make locations empty
7879 if locations.len() > 1 {
7880 cx.update(|cx| {
7881 locations.retain(|location| {
7882 // fn foo(x : i64) {
7883 // ^
7884 // println!(x);
7885 // }
7886 // It is ok to find reference when caret being at ^ (the end of the word)
7887 // So we turn offset into inclusive to include the end of the word
7888 !location
7889 .range
7890 .to_offset(location.buffer.read(cx))
7891 .to_inclusive()
7892 .contains(&head_offset)
7893 });
7894 })?;
7895 }
7896
7897 if locations.is_empty() {
7898 return Ok(());
7899 }
7900
7901 // If there is one reference, just open it directly
7902 if locations.len() == 1 {
7903 let target = locations.pop().unwrap();
7904
7905 return editor.update(&mut cx, |editor, cx| {
7906 let range = target.range.to_offset(target.buffer.read(cx));
7907 let range = editor.range_for_match(&range);
7908
7909 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7910 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7911 s.select_ranges([range]);
7912 });
7913 } else {
7914 cx.window_context().defer(move |cx| {
7915 let target_editor: View<Self> =
7916 workspace.update(cx, |workspace, cx| {
7917 workspace.open_project_item(
7918 workspace.active_pane().clone(),
7919 target.buffer.clone(),
7920 cx,
7921 )
7922 });
7923 target_editor.update(cx, |target_editor, cx| {
7924 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7925 s.select_ranges([range]);
7926 })
7927 })
7928 })
7929 }
7930 });
7931 }
7932
7933 workspace.update(&mut cx, |workspace, cx| {
7934 let title = locations
7935 .first()
7936 .as_ref()
7937 .map(|location| {
7938 let buffer = location.buffer.read(cx);
7939 format!(
7940 "References to `{}`",
7941 buffer
7942 .text_for_range(location.range.clone())
7943 .collect::<String>()
7944 )
7945 })
7946 .unwrap();
7947 Self::open_locations_in_multibuffer(
7948 workspace, locations, replica_id, title, false, cx,
7949 );
7950 })?;
7951
7952 Ok(())
7953 }))
7954 }
7955
7956 /// Opens a multibuffer with the given project locations in it
7957 pub fn open_locations_in_multibuffer(
7958 workspace: &mut Workspace,
7959 mut locations: Vec<Location>,
7960 replica_id: ReplicaId,
7961 title: String,
7962 split: bool,
7963 cx: &mut ViewContext<Workspace>,
7964 ) {
7965 // If there are multiple definitions, open them in a multibuffer
7966 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7967 let mut locations = locations.into_iter().peekable();
7968 let mut ranges_to_highlight = Vec::new();
7969 let capability = workspace.project().read(cx).capability();
7970
7971 let excerpt_buffer = cx.new_model(|cx| {
7972 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7973 while let Some(location) = locations.next() {
7974 let buffer = location.buffer.read(cx);
7975 let mut ranges_for_buffer = Vec::new();
7976 let range = location.range.to_offset(buffer);
7977 ranges_for_buffer.push(range.clone());
7978
7979 while let Some(next_location) = locations.peek() {
7980 if next_location.buffer == location.buffer {
7981 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7982 locations.next();
7983 } else {
7984 break;
7985 }
7986 }
7987
7988 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7989 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7990 location.buffer.clone(),
7991 ranges_for_buffer,
7992 1,
7993 cx,
7994 ))
7995 }
7996
7997 multibuffer.with_title(title)
7998 });
7999
8000 let editor = cx.new_view(|cx| {
8001 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8002 });
8003 editor.update(cx, |editor, cx| {
8004 editor.highlight_background::<Self>(
8005 ranges_to_highlight,
8006 |theme| theme.editor_highlighted_line_background,
8007 cx,
8008 );
8009 });
8010 if split {
8011 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8012 } else {
8013 workspace.add_item_to_active_pane(Box::new(editor), cx);
8014 }
8015 }
8016
8017 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8018 use language::ToOffset as _;
8019
8020 let project = self.project.clone()?;
8021 let selection = self.selections.newest_anchor().clone();
8022 let (cursor_buffer, cursor_buffer_position) = self
8023 .buffer
8024 .read(cx)
8025 .text_anchor_for_position(selection.head(), cx)?;
8026 let (tail_buffer, _) = self
8027 .buffer
8028 .read(cx)
8029 .text_anchor_for_position(selection.tail(), cx)?;
8030 if tail_buffer != cursor_buffer {
8031 return None;
8032 }
8033
8034 let snapshot = cursor_buffer.read(cx).snapshot();
8035 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8036 let prepare_rename = project.update(cx, |project, cx| {
8037 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8038 });
8039 drop(snapshot);
8040
8041 Some(cx.spawn(|this, mut cx| async move {
8042 let rename_range = if let Some(range) = prepare_rename.await? {
8043 Some(range)
8044 } else {
8045 this.update(&mut cx, |this, cx| {
8046 let buffer = this.buffer.read(cx).snapshot(cx);
8047 let mut buffer_highlights = this
8048 .document_highlights_for_position(selection.head(), &buffer)
8049 .filter(|highlight| {
8050 highlight.start.excerpt_id == selection.head().excerpt_id
8051 && highlight.end.excerpt_id == selection.head().excerpt_id
8052 });
8053 buffer_highlights
8054 .next()
8055 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8056 })?
8057 };
8058 if let Some(rename_range) = rename_range {
8059 this.update(&mut cx, |this, cx| {
8060 let snapshot = cursor_buffer.read(cx).snapshot();
8061 let rename_buffer_range = rename_range.to_offset(&snapshot);
8062 let cursor_offset_in_rename_range =
8063 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8064
8065 this.take_rename(false, cx);
8066 let buffer = this.buffer.read(cx).read(cx);
8067 let cursor_offset = selection.head().to_offset(&buffer);
8068 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8069 let rename_end = rename_start + rename_buffer_range.len();
8070 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8071 let mut old_highlight_id = None;
8072 let old_name: Arc<str> = buffer
8073 .chunks(rename_start..rename_end, true)
8074 .map(|chunk| {
8075 if old_highlight_id.is_none() {
8076 old_highlight_id = chunk.syntax_highlight_id;
8077 }
8078 chunk.text
8079 })
8080 .collect::<String>()
8081 .into();
8082
8083 drop(buffer);
8084
8085 // Position the selection in the rename editor so that it matches the current selection.
8086 this.show_local_selections = false;
8087 let rename_editor = cx.new_view(|cx| {
8088 let mut editor = Editor::single_line(cx);
8089 editor.buffer.update(cx, |buffer, cx| {
8090 buffer.edit([(0..0, old_name.clone())], None, cx)
8091 });
8092 editor.select_all(&SelectAll, cx);
8093 editor
8094 });
8095
8096 let ranges = this
8097 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8098 .into_iter()
8099 .flat_map(|(_, ranges)| ranges.into_iter())
8100 .chain(
8101 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8102 .into_iter()
8103 .flat_map(|(_, ranges)| ranges.into_iter()),
8104 )
8105 .collect();
8106
8107 this.highlight_text::<Rename>(
8108 ranges,
8109 HighlightStyle {
8110 fade_out: Some(0.6),
8111 ..Default::default()
8112 },
8113 cx,
8114 );
8115 let rename_focus_handle = rename_editor.focus_handle(cx);
8116 cx.focus(&rename_focus_handle);
8117 let block_id = this.insert_blocks(
8118 [BlockProperties {
8119 style: BlockStyle::Flex,
8120 position: range.start,
8121 height: 1,
8122 render: Arc::new({
8123 let rename_editor = rename_editor.clone();
8124 move |cx: &mut BlockContext| {
8125 let mut text_style = cx.editor_style.text.clone();
8126 if let Some(highlight_style) = old_highlight_id
8127 .and_then(|h| h.style(&cx.editor_style.syntax))
8128 {
8129 text_style = text_style.highlight(highlight_style);
8130 }
8131 div()
8132 .pl(cx.anchor_x)
8133 .child(EditorElement::new(
8134 &rename_editor,
8135 EditorStyle {
8136 background: cx.theme().system().transparent,
8137 local_player: cx.editor_style.local_player,
8138 text: text_style,
8139 scrollbar_width: cx.editor_style.scrollbar_width,
8140 syntax: cx.editor_style.syntax.clone(),
8141 status: cx.editor_style.status.clone(),
8142 inlays_style: HighlightStyle {
8143 color: Some(cx.theme().status().hint),
8144 font_weight: Some(FontWeight::BOLD),
8145 ..HighlightStyle::default()
8146 },
8147 suggestions_style: HighlightStyle {
8148 color: Some(cx.theme().status().predictive),
8149 ..HighlightStyle::default()
8150 },
8151 },
8152 ))
8153 .into_any_element()
8154 }
8155 }),
8156 disposition: BlockDisposition::Below,
8157 }],
8158 Some(Autoscroll::fit()),
8159 cx,
8160 )[0];
8161 this.pending_rename = Some(RenameState {
8162 range,
8163 old_name,
8164 editor: rename_editor,
8165 block_id,
8166 });
8167 })?;
8168 }
8169
8170 Ok(())
8171 }))
8172 }
8173
8174 pub fn confirm_rename(
8175 &mut self,
8176 _: &ConfirmRename,
8177 cx: &mut ViewContext<Self>,
8178 ) -> Option<Task<Result<()>>> {
8179 let rename = self.take_rename(false, cx)?;
8180 let workspace = self.workspace()?;
8181 let (start_buffer, start) = self
8182 .buffer
8183 .read(cx)
8184 .text_anchor_for_position(rename.range.start, cx)?;
8185 let (end_buffer, end) = self
8186 .buffer
8187 .read(cx)
8188 .text_anchor_for_position(rename.range.end, cx)?;
8189 if start_buffer != end_buffer {
8190 return None;
8191 }
8192
8193 let buffer = start_buffer;
8194 let range = start..end;
8195 let old_name = rename.old_name;
8196 let new_name = rename.editor.read(cx).text(cx);
8197
8198 let rename = workspace
8199 .read(cx)
8200 .project()
8201 .clone()
8202 .update(cx, |project, cx| {
8203 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8204 });
8205 let workspace = workspace.downgrade();
8206
8207 Some(cx.spawn(|editor, mut cx| async move {
8208 let project_transaction = rename.await?;
8209 Self::open_project_transaction(
8210 &editor,
8211 workspace,
8212 project_transaction,
8213 format!("Rename: {} → {}", old_name, new_name),
8214 cx.clone(),
8215 )
8216 .await?;
8217
8218 editor.update(&mut cx, |editor, cx| {
8219 editor.refresh_document_highlights(cx);
8220 })?;
8221 Ok(())
8222 }))
8223 }
8224
8225 fn take_rename(
8226 &mut self,
8227 moving_cursor: bool,
8228 cx: &mut ViewContext<Self>,
8229 ) -> Option<RenameState> {
8230 let rename = self.pending_rename.take()?;
8231 if rename.editor.focus_handle(cx).is_focused(cx) {
8232 cx.focus(&self.focus_handle);
8233 }
8234
8235 self.remove_blocks(
8236 [rename.block_id].into_iter().collect(),
8237 Some(Autoscroll::fit()),
8238 cx,
8239 );
8240 self.clear_highlights::<Rename>(cx);
8241 self.show_local_selections = true;
8242
8243 if moving_cursor {
8244 let rename_editor = rename.editor.read(cx);
8245 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8246
8247 // Update the selection to match the position of the selection inside
8248 // the rename editor.
8249 let snapshot = self.buffer.read(cx).read(cx);
8250 let rename_range = rename.range.to_offset(&snapshot);
8251 let cursor_in_editor = snapshot
8252 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8253 .min(rename_range.end);
8254 drop(snapshot);
8255
8256 self.change_selections(None, cx, |s| {
8257 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8258 });
8259 } else {
8260 self.refresh_document_highlights(cx);
8261 }
8262
8263 Some(rename)
8264 }
8265
8266 pub fn pending_rename(&self) -> Option<&RenameState> {
8267 self.pending_rename.as_ref()
8268 }
8269
8270 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8271 let project = match &self.project {
8272 Some(project) => project.clone(),
8273 None => return None,
8274 };
8275
8276 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8277 }
8278
8279 fn perform_format(
8280 &mut self,
8281 project: Model<Project>,
8282 trigger: FormatTrigger,
8283 cx: &mut ViewContext<Self>,
8284 ) -> Task<Result<()>> {
8285 let buffer = self.buffer().clone();
8286 let buffers = buffer.read(cx).all_buffers();
8287
8288 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8289 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8290
8291 cx.spawn(|_, mut cx| async move {
8292 let transaction = futures::select_biased! {
8293 _ = timeout => {
8294 log::warn!("timed out waiting for formatting");
8295 None
8296 }
8297 transaction = format.log_err().fuse() => transaction,
8298 };
8299
8300 buffer
8301 .update(&mut cx, |buffer, cx| {
8302 if let Some(transaction) = transaction {
8303 if !buffer.is_singleton() {
8304 buffer.push_transaction(&transaction.0, cx);
8305 }
8306 }
8307
8308 cx.notify();
8309 })
8310 .ok();
8311
8312 Ok(())
8313 })
8314 }
8315
8316 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8317 if let Some(project) = self.project.clone() {
8318 self.buffer.update(cx, |multi_buffer, cx| {
8319 project.update(cx, |project, cx| {
8320 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8321 });
8322 })
8323 }
8324 }
8325
8326 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8327 cx.show_character_palette();
8328 }
8329
8330 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8331 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8332 let buffer = self.buffer.read(cx).snapshot(cx);
8333 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8334 let is_valid = buffer
8335 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8336 .any(|entry| {
8337 entry.diagnostic.is_primary
8338 && !entry.range.is_empty()
8339 && entry.range.start == primary_range_start
8340 && entry.diagnostic.message == active_diagnostics.primary_message
8341 });
8342
8343 if is_valid != active_diagnostics.is_valid {
8344 active_diagnostics.is_valid = is_valid;
8345 let mut new_styles = HashMap::default();
8346 for (block_id, diagnostic) in &active_diagnostics.blocks {
8347 new_styles.insert(
8348 *block_id,
8349 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8350 );
8351 }
8352 self.display_map
8353 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8354 }
8355 }
8356 }
8357
8358 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8359 self.dismiss_diagnostics(cx);
8360 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8361 let buffer = self.buffer.read(cx).snapshot(cx);
8362
8363 let mut primary_range = None;
8364 let mut primary_message = None;
8365 let mut group_end = Point::zero();
8366 let diagnostic_group = buffer
8367 .diagnostic_group::<Point>(group_id)
8368 .map(|entry| {
8369 if entry.range.end > group_end {
8370 group_end = entry.range.end;
8371 }
8372 if entry.diagnostic.is_primary {
8373 primary_range = Some(entry.range.clone());
8374 primary_message = Some(entry.diagnostic.message.clone());
8375 }
8376 entry
8377 })
8378 .collect::<Vec<_>>();
8379 let primary_range = primary_range?;
8380 let primary_message = primary_message?;
8381 let primary_range =
8382 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8383
8384 let blocks = display_map
8385 .insert_blocks(
8386 diagnostic_group.iter().map(|entry| {
8387 let diagnostic = entry.diagnostic.clone();
8388 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8389 BlockProperties {
8390 style: BlockStyle::Fixed,
8391 position: buffer.anchor_after(entry.range.start),
8392 height: message_height,
8393 render: diagnostic_block_renderer(diagnostic, true),
8394 disposition: BlockDisposition::Below,
8395 }
8396 }),
8397 cx,
8398 )
8399 .into_iter()
8400 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8401 .collect();
8402
8403 Some(ActiveDiagnosticGroup {
8404 primary_range,
8405 primary_message,
8406 blocks,
8407 is_valid: true,
8408 })
8409 });
8410 self.active_diagnostics.is_some()
8411 }
8412
8413 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8414 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8415 self.display_map.update(cx, |display_map, cx| {
8416 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8417 });
8418 cx.notify();
8419 }
8420 }
8421
8422 pub fn set_selections_from_remote(
8423 &mut self,
8424 selections: Vec<Selection<Anchor>>,
8425 pending_selection: Option<Selection<Anchor>>,
8426 cx: &mut ViewContext<Self>,
8427 ) {
8428 let old_cursor_position = self.selections.newest_anchor().head();
8429 self.selections.change_with(cx, |s| {
8430 s.select_anchors(selections);
8431 if let Some(pending_selection) = pending_selection {
8432 s.set_pending(pending_selection, SelectMode::Character);
8433 } else {
8434 s.clear_pending();
8435 }
8436 });
8437 self.selections_did_change(false, &old_cursor_position, cx);
8438 }
8439
8440 fn push_to_selection_history(&mut self) {
8441 self.selection_history.push(SelectionHistoryEntry {
8442 selections: self.selections.disjoint_anchors(),
8443 select_next_state: self.select_next_state.clone(),
8444 select_prev_state: self.select_prev_state.clone(),
8445 add_selections_state: self.add_selections_state.clone(),
8446 });
8447 }
8448
8449 pub fn transact(
8450 &mut self,
8451 cx: &mut ViewContext<Self>,
8452 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8453 ) -> Option<TransactionId> {
8454 self.start_transaction_at(Instant::now(), cx);
8455 update(self, cx);
8456 self.end_transaction_at(Instant::now(), cx)
8457 }
8458
8459 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8460 self.end_selection(cx);
8461 if let Some(tx_id) = self
8462 .buffer
8463 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8464 {
8465 self.selection_history
8466 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8467 }
8468 }
8469
8470 fn end_transaction_at(
8471 &mut self,
8472 now: Instant,
8473 cx: &mut ViewContext<Self>,
8474 ) -> Option<TransactionId> {
8475 if let Some(tx_id) = self
8476 .buffer
8477 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8478 {
8479 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8480 *end_selections = Some(self.selections.disjoint_anchors());
8481 } else {
8482 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8483 }
8484
8485 cx.emit(EditorEvent::Edited);
8486 Some(tx_id)
8487 } else {
8488 None
8489 }
8490 }
8491
8492 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8493 let mut fold_ranges = Vec::new();
8494
8495 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8496
8497 let selections = self.selections.all_adjusted(cx);
8498 for selection in selections {
8499 let range = selection.range().sorted();
8500 let buffer_start_row = range.start.row;
8501
8502 for row in (0..=range.end.row).rev() {
8503 let fold_range = display_map.foldable_range(row);
8504
8505 if let Some(fold_range) = fold_range {
8506 if fold_range.end.row >= buffer_start_row {
8507 fold_ranges.push(fold_range);
8508 if row <= range.start.row {
8509 break;
8510 }
8511 }
8512 }
8513 }
8514 }
8515
8516 self.fold_ranges(fold_ranges, true, cx);
8517 }
8518
8519 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8520 let buffer_row = fold_at.buffer_row;
8521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8522
8523 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8524 let autoscroll = self
8525 .selections
8526 .all::<Point>(cx)
8527 .iter()
8528 .any(|selection| fold_range.overlaps(&selection.range()));
8529
8530 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8531 }
8532 }
8533
8534 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8535 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8536 let buffer = &display_map.buffer_snapshot;
8537 let selections = self.selections.all::<Point>(cx);
8538 let ranges = selections
8539 .iter()
8540 .map(|s| {
8541 let range = s.display_range(&display_map).sorted();
8542 let mut start = range.start.to_point(&display_map);
8543 let mut end = range.end.to_point(&display_map);
8544 start.column = 0;
8545 end.column = buffer.line_len(end.row);
8546 start..end
8547 })
8548 .collect::<Vec<_>>();
8549
8550 self.unfold_ranges(ranges, true, true, cx);
8551 }
8552
8553 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8554 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8555
8556 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8557 ..Point::new(
8558 unfold_at.buffer_row,
8559 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8560 );
8561
8562 let autoscroll = self
8563 .selections
8564 .all::<Point>(cx)
8565 .iter()
8566 .any(|selection| selection.range().overlaps(&intersection_range));
8567
8568 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8569 }
8570
8571 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8572 let selections = self.selections.all::<Point>(cx);
8573 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8574 let line_mode = self.selections.line_mode;
8575 let ranges = selections.into_iter().map(|s| {
8576 if line_mode {
8577 let start = Point::new(s.start.row, 0);
8578 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8579 start..end
8580 } else {
8581 s.start..s.end
8582 }
8583 });
8584 self.fold_ranges(ranges, true, cx);
8585 }
8586
8587 pub fn fold_ranges<T: ToOffset + Clone>(
8588 &mut self,
8589 ranges: impl IntoIterator<Item = Range<T>>,
8590 auto_scroll: bool,
8591 cx: &mut ViewContext<Self>,
8592 ) {
8593 let mut ranges = ranges.into_iter().peekable();
8594 if ranges.peek().is_some() {
8595 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8596
8597 if auto_scroll {
8598 self.request_autoscroll(Autoscroll::fit(), cx);
8599 }
8600
8601 cx.notify();
8602 }
8603 }
8604
8605 pub fn unfold_ranges<T: ToOffset + Clone>(
8606 &mut self,
8607 ranges: impl IntoIterator<Item = Range<T>>,
8608 inclusive: bool,
8609 auto_scroll: bool,
8610 cx: &mut ViewContext<Self>,
8611 ) {
8612 let mut ranges = ranges.into_iter().peekable();
8613 if ranges.peek().is_some() {
8614 self.display_map
8615 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8616 if auto_scroll {
8617 self.request_autoscroll(Autoscroll::fit(), cx);
8618 }
8619
8620 cx.notify();
8621 }
8622 }
8623
8624 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8625 if hovered != self.gutter_hovered {
8626 self.gutter_hovered = hovered;
8627 cx.notify();
8628 }
8629 }
8630
8631 pub fn insert_blocks(
8632 &mut self,
8633 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8634 autoscroll: Option<Autoscroll>,
8635 cx: &mut ViewContext<Self>,
8636 ) -> Vec<BlockId> {
8637 let blocks = self
8638 .display_map
8639 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8640 if let Some(autoscroll) = autoscroll {
8641 self.request_autoscroll(autoscroll, cx);
8642 }
8643 blocks
8644 }
8645
8646 pub fn replace_blocks(
8647 &mut self,
8648 blocks: HashMap<BlockId, RenderBlock>,
8649 autoscroll: Option<Autoscroll>,
8650 cx: &mut ViewContext<Self>,
8651 ) {
8652 self.display_map
8653 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8654 if let Some(autoscroll) = autoscroll {
8655 self.request_autoscroll(autoscroll, cx);
8656 }
8657 }
8658
8659 pub fn remove_blocks(
8660 &mut self,
8661 block_ids: HashSet<BlockId>,
8662 autoscroll: Option<Autoscroll>,
8663 cx: &mut ViewContext<Self>,
8664 ) {
8665 self.display_map.update(cx, |display_map, cx| {
8666 display_map.remove_blocks(block_ids, cx)
8667 });
8668 if let Some(autoscroll) = autoscroll {
8669 self.request_autoscroll(autoscroll, cx);
8670 }
8671 }
8672
8673 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8674 self.display_map
8675 .update(cx, |map, cx| map.snapshot(cx))
8676 .longest_row()
8677 }
8678
8679 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8680 self.display_map
8681 .update(cx, |map, cx| map.snapshot(cx))
8682 .max_point()
8683 }
8684
8685 pub fn text(&self, cx: &AppContext) -> String {
8686 self.buffer.read(cx).read(cx).text()
8687 }
8688
8689 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8690 let text = self.text(cx);
8691 let text = text.trim();
8692
8693 if text.is_empty() {
8694 return None;
8695 }
8696
8697 Some(text.to_string())
8698 }
8699
8700 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8701 self.transact(cx, |this, cx| {
8702 this.buffer
8703 .read(cx)
8704 .as_singleton()
8705 .expect("you can only call set_text on editors for singleton buffers")
8706 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8707 });
8708 }
8709
8710 pub fn display_text(&self, cx: &mut AppContext) -> String {
8711 self.display_map
8712 .update(cx, |map, cx| map.snapshot(cx))
8713 .text()
8714 }
8715
8716 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8717 let mut wrap_guides = smallvec::smallvec![];
8718
8719 if self.show_wrap_guides == Some(false) {
8720 return wrap_guides;
8721 }
8722
8723 let settings = self.buffer.read(cx).settings_at(0, cx);
8724 if settings.show_wrap_guides {
8725 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8726 wrap_guides.push((soft_wrap as usize, true));
8727 }
8728 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8729 }
8730
8731 wrap_guides
8732 }
8733
8734 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8735 let settings = self.buffer.read(cx).settings_at(0, cx);
8736 let mode = self
8737 .soft_wrap_mode_override
8738 .unwrap_or_else(|| settings.soft_wrap);
8739 match mode {
8740 language_settings::SoftWrap::None => SoftWrap::None,
8741 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8742 language_settings::SoftWrap::PreferredLineLength => {
8743 SoftWrap::Column(settings.preferred_line_length)
8744 }
8745 }
8746 }
8747
8748 pub fn set_soft_wrap_mode(
8749 &mut self,
8750 mode: language_settings::SoftWrap,
8751 cx: &mut ViewContext<Self>,
8752 ) {
8753 self.soft_wrap_mode_override = Some(mode);
8754 cx.notify();
8755 }
8756
8757 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8758 let rem_size = cx.rem_size();
8759 self.display_map.update(cx, |map, cx| {
8760 map.set_font(
8761 style.text.font(),
8762 style.text.font_size.to_pixels(rem_size),
8763 cx,
8764 )
8765 });
8766 self.style = Some(style);
8767 }
8768
8769 #[cfg(any(test, feature = "test-support"))]
8770 pub fn style(&self) -> Option<&EditorStyle> {
8771 self.style.as_ref()
8772 }
8773
8774 // Called by the element. This method is not designed to be called outside of the editor
8775 // element's layout code because it does not notify when rewrapping is computed synchronously.
8776 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8777 self.display_map
8778 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8779 }
8780
8781 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8782 if self.soft_wrap_mode_override.is_some() {
8783 self.soft_wrap_mode_override.take();
8784 } else {
8785 let soft_wrap = match self.soft_wrap_mode(cx) {
8786 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8787 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8788 };
8789 self.soft_wrap_mode_override = Some(soft_wrap);
8790 }
8791 cx.notify();
8792 }
8793
8794 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8795 let mut editor_settings = EditorSettings::get_global(cx).clone();
8796 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8797 EditorSettings::override_global(editor_settings, cx);
8798 }
8799
8800 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8801 self.show_gutter = show_gutter;
8802 cx.notify();
8803 }
8804
8805 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8806 self.show_wrap_guides = Some(show_gutter);
8807 cx.notify();
8808 }
8809
8810 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8811 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8812 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8813 cx.reveal_path(&file.abs_path(cx));
8814 }
8815 }
8816 }
8817
8818 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8819 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8820 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8821 if let Some(path) = file.abs_path(cx).to_str() {
8822 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8823 }
8824 }
8825 }
8826 }
8827
8828 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8829 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8830 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8831 if let Some(path) = file.path().to_str() {
8832 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8833 }
8834 }
8835 }
8836 }
8837
8838 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8839 use git::permalink::{build_permalink, BuildPermalinkParams};
8840
8841 let (path, repo) = maybe!({
8842 let project_handle = self.project.as_ref()?.clone();
8843 let project = project_handle.read(cx);
8844 let buffer = self.buffer().read(cx).as_singleton()?;
8845 let path = buffer
8846 .read(cx)
8847 .file()?
8848 .as_local()?
8849 .path()
8850 .to_str()?
8851 .to_string();
8852 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8853 Some((path, repo))
8854 })
8855 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8856
8857 const REMOTE_NAME: &str = "origin";
8858 let origin_url = repo
8859 .lock()
8860 .remote_url(REMOTE_NAME)
8861 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8862 let sha = repo
8863 .lock()
8864 .head_sha()
8865 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8866 let selections = self.selections.all::<Point>(cx);
8867 let selection = selections.iter().peekable().next();
8868
8869 build_permalink(BuildPermalinkParams {
8870 remote_url: &origin_url,
8871 sha: &sha,
8872 path: &path,
8873 selection: selection.map(|selection| selection.range()),
8874 })
8875 }
8876
8877 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8878 let permalink = self.get_permalink_to_line(cx);
8879
8880 match permalink {
8881 Ok(permalink) => {
8882 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8883 }
8884 Err(err) => {
8885 let message = format!("Failed to copy permalink: {err}");
8886
8887 Err::<(), anyhow::Error>(err).log_err();
8888
8889 if let Some(workspace) = self.workspace() {
8890 workspace.update(cx, |workspace, cx| {
8891 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8892 })
8893 }
8894 }
8895 }
8896 }
8897
8898 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8899 let permalink = self.get_permalink_to_line(cx);
8900
8901 match permalink {
8902 Ok(permalink) => {
8903 cx.open_url(permalink.as_ref());
8904 }
8905 Err(err) => {
8906 let message = format!("Failed to open permalink: {err}");
8907
8908 Err::<(), anyhow::Error>(err).log_err();
8909
8910 if let Some(workspace) = self.workspace() {
8911 workspace.update(cx, |workspace, cx| {
8912 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8913 })
8914 }
8915 }
8916 }
8917 }
8918
8919 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8920 self.highlighted_rows = rows;
8921 }
8922
8923 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8924 self.highlighted_rows.clone()
8925 }
8926
8927 pub fn highlight_background<T: 'static>(
8928 &mut self,
8929 ranges: Vec<Range<Anchor>>,
8930 color_fetcher: fn(&ThemeColors) -> Hsla,
8931 cx: &mut ViewContext<Self>,
8932 ) {
8933 let snapshot = self.snapshot(cx);
8934 // this is to try and catch a panic sooner
8935 for range in &ranges {
8936 snapshot
8937 .buffer_snapshot
8938 .summary_for_anchor::<usize>(&range.start);
8939 snapshot
8940 .buffer_snapshot
8941 .summary_for_anchor::<usize>(&range.end);
8942 }
8943
8944 self.background_highlights
8945 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8946 cx.notify();
8947 }
8948
8949 pub(crate) fn highlight_inlay_background<T: 'static>(
8950 &mut self,
8951 ranges: Vec<InlayHighlight>,
8952 color_fetcher: fn(&ThemeColors) -> Hsla,
8953 cx: &mut ViewContext<Self>,
8954 ) {
8955 // TODO: no actual highlights happen for inlays currently, find a way to do that
8956 self.inlay_background_highlights
8957 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8958 cx.notify();
8959 }
8960
8961 pub fn clear_background_highlights<T: 'static>(
8962 &mut self,
8963 cx: &mut ViewContext<Self>,
8964 ) -> Option<BackgroundHighlight> {
8965 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8966 let inlay_highlights = self
8967 .inlay_background_highlights
8968 .remove(&Some(TypeId::of::<T>()));
8969 if text_highlights.is_some() || inlay_highlights.is_some() {
8970 cx.notify();
8971 }
8972 text_highlights
8973 }
8974
8975 #[cfg(feature = "test-support")]
8976 pub fn all_text_background_highlights(
8977 &mut self,
8978 cx: &mut ViewContext<Self>,
8979 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8980 let snapshot = self.snapshot(cx);
8981 let buffer = &snapshot.buffer_snapshot;
8982 let start = buffer.anchor_before(0);
8983 let end = buffer.anchor_after(buffer.len());
8984 let theme = cx.theme().colors();
8985 self.background_highlights_in_range(start..end, &snapshot, theme)
8986 }
8987
8988 fn document_highlights_for_position<'a>(
8989 &'a self,
8990 position: Anchor,
8991 buffer: &'a MultiBufferSnapshot,
8992 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8993 let read_highlights = self
8994 .background_highlights
8995 .get(&TypeId::of::<DocumentHighlightRead>())
8996 .map(|h| &h.1);
8997 let write_highlights = self
8998 .background_highlights
8999 .get(&TypeId::of::<DocumentHighlightWrite>())
9000 .map(|h| &h.1);
9001 let left_position = position.bias_left(buffer);
9002 let right_position = position.bias_right(buffer);
9003 read_highlights
9004 .into_iter()
9005 .chain(write_highlights)
9006 .flat_map(move |ranges| {
9007 let start_ix = match ranges.binary_search_by(|probe| {
9008 let cmp = probe.end.cmp(&left_position, buffer);
9009 if cmp.is_ge() {
9010 Ordering::Greater
9011 } else {
9012 Ordering::Less
9013 }
9014 }) {
9015 Ok(i) | Err(i) => i,
9016 };
9017
9018 ranges[start_ix..]
9019 .iter()
9020 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9021 })
9022 }
9023
9024 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9025 self.background_highlights
9026 .get(&TypeId::of::<T>())
9027 .map_or(false, |(_, highlights)| !highlights.is_empty())
9028 }
9029
9030 pub fn background_highlights_in_range(
9031 &self,
9032 search_range: Range<Anchor>,
9033 display_snapshot: &DisplaySnapshot,
9034 theme: &ThemeColors,
9035 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9036 let mut results = Vec::new();
9037 for (color_fetcher, ranges) in self.background_highlights.values() {
9038 let color = color_fetcher(theme);
9039 let start_ix = match ranges.binary_search_by(|probe| {
9040 let cmp = probe
9041 .end
9042 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9043 if cmp.is_gt() {
9044 Ordering::Greater
9045 } else {
9046 Ordering::Less
9047 }
9048 }) {
9049 Ok(i) | Err(i) => i,
9050 };
9051 for range in &ranges[start_ix..] {
9052 if range
9053 .start
9054 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9055 .is_ge()
9056 {
9057 break;
9058 }
9059
9060 let start = range.start.to_display_point(&display_snapshot);
9061 let end = range.end.to_display_point(&display_snapshot);
9062 results.push((start..end, color))
9063 }
9064 }
9065 results
9066 }
9067
9068 pub fn background_highlight_row_ranges<T: 'static>(
9069 &self,
9070 search_range: Range<Anchor>,
9071 display_snapshot: &DisplaySnapshot,
9072 count: usize,
9073 ) -> Vec<RangeInclusive<DisplayPoint>> {
9074 let mut results = Vec::new();
9075 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9076 return vec![];
9077 };
9078
9079 let start_ix = match ranges.binary_search_by(|probe| {
9080 let cmp = probe
9081 .end
9082 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9083 if cmp.is_gt() {
9084 Ordering::Greater
9085 } else {
9086 Ordering::Less
9087 }
9088 }) {
9089 Ok(i) | Err(i) => i,
9090 };
9091 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9092 if let (Some(start_display), Some(end_display)) = (start, end) {
9093 results.push(
9094 start_display.to_display_point(display_snapshot)
9095 ..=end_display.to_display_point(display_snapshot),
9096 );
9097 }
9098 };
9099 let mut start_row: Option<Point> = None;
9100 let mut end_row: Option<Point> = None;
9101 if ranges.len() > count {
9102 return Vec::new();
9103 }
9104 for range in &ranges[start_ix..] {
9105 if range
9106 .start
9107 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9108 .is_ge()
9109 {
9110 break;
9111 }
9112 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9113 if let Some(current_row) = &end_row {
9114 if end.row == current_row.row {
9115 continue;
9116 }
9117 }
9118 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9119 if start_row.is_none() {
9120 assert_eq!(end_row, None);
9121 start_row = Some(start);
9122 end_row = Some(end);
9123 continue;
9124 }
9125 if let Some(current_end) = end_row.as_mut() {
9126 if start.row > current_end.row + 1 {
9127 push_region(start_row, end_row);
9128 start_row = Some(start);
9129 end_row = Some(end);
9130 } else {
9131 // Merge two hunks.
9132 *current_end = end;
9133 }
9134 } else {
9135 unreachable!();
9136 }
9137 }
9138 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9139 push_region(start_row, end_row);
9140 results
9141 }
9142
9143 /// Get the text ranges corresponding to the redaction query
9144 pub fn redacted_ranges(
9145 &self,
9146 search_range: Range<Anchor>,
9147 display_snapshot: &DisplaySnapshot,
9148 cx: &mut ViewContext<Self>,
9149 ) -> Vec<Range<DisplayPoint>> {
9150 display_snapshot
9151 .buffer_snapshot
9152 .redacted_ranges(search_range, |file| {
9153 if let Some(file) = file {
9154 file.is_private()
9155 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
9156 .redact_private_values
9157 } else {
9158 false
9159 }
9160 })
9161 .map(|range| {
9162 range.start.to_display_point(display_snapshot)
9163 ..range.end.to_display_point(display_snapshot)
9164 })
9165 .collect()
9166 }
9167
9168 pub fn highlight_text<T: 'static>(
9169 &mut self,
9170 ranges: Vec<Range<Anchor>>,
9171 style: HighlightStyle,
9172 cx: &mut ViewContext<Self>,
9173 ) {
9174 self.display_map.update(cx, |map, _| {
9175 map.highlight_text(TypeId::of::<T>(), ranges, style)
9176 });
9177 cx.notify();
9178 }
9179
9180 pub(crate) fn highlight_inlays<T: 'static>(
9181 &mut self,
9182 highlights: Vec<InlayHighlight>,
9183 style: HighlightStyle,
9184 cx: &mut ViewContext<Self>,
9185 ) {
9186 self.display_map.update(cx, |map, _| {
9187 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9188 });
9189 cx.notify();
9190 }
9191
9192 pub fn text_highlights<'a, T: 'static>(
9193 &'a self,
9194 cx: &'a AppContext,
9195 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9196 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9197 }
9198
9199 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9200 let cleared = self
9201 .display_map
9202 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9203 if cleared {
9204 cx.notify();
9205 }
9206 }
9207
9208 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9209 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9210 && self.focus_handle.is_focused(cx)
9211 }
9212
9213 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9214 cx.notify();
9215 }
9216
9217 fn on_buffer_event(
9218 &mut self,
9219 multibuffer: Model<MultiBuffer>,
9220 event: &multi_buffer::Event,
9221 cx: &mut ViewContext<Self>,
9222 ) {
9223 match event {
9224 multi_buffer::Event::Edited {
9225 singleton_buffer_edited,
9226 } => {
9227 self.refresh_active_diagnostics(cx);
9228 self.refresh_code_actions(cx);
9229 if self.has_active_copilot_suggestion(cx) {
9230 self.update_visible_copilot_suggestion(cx);
9231 }
9232 cx.emit(EditorEvent::BufferEdited);
9233 cx.emit(SearchEvent::MatchesInvalidated);
9234
9235 if *singleton_buffer_edited {
9236 if let Some(project) = &self.project {
9237 let project = project.read(cx);
9238 let languages_affected = multibuffer
9239 .read(cx)
9240 .all_buffers()
9241 .into_iter()
9242 .filter_map(|buffer| {
9243 let buffer = buffer.read(cx);
9244 let language = buffer.language()?;
9245 if project.is_local()
9246 && project.language_servers_for_buffer(buffer, cx).count() == 0
9247 {
9248 None
9249 } else {
9250 Some(language)
9251 }
9252 })
9253 .cloned()
9254 .collect::<HashSet<_>>();
9255 if !languages_affected.is_empty() {
9256 self.refresh_inlay_hints(
9257 InlayHintRefreshReason::BufferEdited(languages_affected),
9258 cx,
9259 );
9260 }
9261 }
9262 }
9263
9264 let Some(project) = &self.project else { return };
9265 let telemetry = project.read(cx).client().telemetry().clone();
9266 telemetry.log_edit_event("editor");
9267 }
9268 multi_buffer::Event::ExcerptsAdded {
9269 buffer,
9270 predecessor,
9271 excerpts,
9272 } => {
9273 cx.emit(EditorEvent::ExcerptsAdded {
9274 buffer: buffer.clone(),
9275 predecessor: *predecessor,
9276 excerpts: excerpts.clone(),
9277 });
9278 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9279 }
9280 multi_buffer::Event::ExcerptsRemoved { ids } => {
9281 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9282 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9283 }
9284 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9285 multi_buffer::Event::LanguageChanged => {
9286 cx.emit(EditorEvent::Reparsed);
9287 cx.notify();
9288 }
9289 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9290 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9291 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9292 cx.emit(EditorEvent::TitleChanged)
9293 }
9294 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9295 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9296 multi_buffer::Event::DiagnosticsUpdated => {
9297 self.refresh_active_diagnostics(cx);
9298 }
9299 _ => {}
9300 };
9301 }
9302
9303 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9304 cx.notify();
9305 }
9306
9307 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9308 self.refresh_copilot_suggestions(true, cx);
9309 self.refresh_inlay_hints(
9310 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9311 self.selections.newest_anchor().head(),
9312 &self.buffer.read(cx).snapshot(cx),
9313 cx,
9314 )),
9315 cx,
9316 );
9317 let editor_settings = EditorSettings::get_global(cx);
9318 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9319 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9320 cx.notify();
9321 }
9322
9323 pub fn set_searchable(&mut self, searchable: bool) {
9324 self.searchable = searchable;
9325 }
9326
9327 pub fn searchable(&self) -> bool {
9328 self.searchable
9329 }
9330
9331 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9332 self.open_excerpts_common(true, cx)
9333 }
9334
9335 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9336 self.open_excerpts_common(false, cx)
9337 }
9338
9339 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9340 let buffer = self.buffer.read(cx);
9341 if buffer.is_singleton() {
9342 cx.propagate();
9343 return;
9344 }
9345
9346 let Some(workspace) = self.workspace() else {
9347 cx.propagate();
9348 return;
9349 };
9350
9351 let mut new_selections_by_buffer = HashMap::default();
9352 for selection in self.selections.all::<usize>(cx) {
9353 for (buffer, mut range, _) in
9354 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9355 {
9356 if selection.reversed {
9357 mem::swap(&mut range.start, &mut range.end);
9358 }
9359 new_selections_by_buffer
9360 .entry(buffer)
9361 .or_insert(Vec::new())
9362 .push(range)
9363 }
9364 }
9365
9366 // We defer the pane interaction because we ourselves are a workspace item
9367 // and activating a new item causes the pane to call a method on us reentrantly,
9368 // which panics if we're on the stack.
9369 cx.window_context().defer(move |cx| {
9370 workspace.update(cx, |workspace, cx| {
9371 let pane = if split {
9372 workspace.adjacent_pane(cx)
9373 } else {
9374 workspace.active_pane().clone()
9375 };
9376 pane.update(cx, |pane, _| pane.disable_history());
9377
9378 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9379 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9380 editor.update(cx, |editor, cx| {
9381 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9382 s.select_ranges(ranges);
9383 });
9384 });
9385 }
9386
9387 pane.update(cx, |pane, _| pane.enable_history());
9388 })
9389 });
9390 }
9391
9392 fn jump(
9393 &mut self,
9394 path: ProjectPath,
9395 position: Point,
9396 anchor: language::Anchor,
9397 cx: &mut ViewContext<Self>,
9398 ) {
9399 let workspace = self.workspace();
9400 cx.spawn(|_, mut cx| async move {
9401 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9402 let editor = workspace.update(&mut cx, |workspace, cx| {
9403 workspace.open_path(path, None, true, cx)
9404 })?;
9405 let editor = editor
9406 .await?
9407 .downcast::<Editor>()
9408 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9409 .downgrade();
9410 editor.update(&mut cx, |editor, cx| {
9411 let buffer = editor
9412 .buffer()
9413 .read(cx)
9414 .as_singleton()
9415 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9416 let buffer = buffer.read(cx);
9417 let cursor = if buffer.can_resolve(&anchor) {
9418 language::ToPoint::to_point(&anchor, buffer)
9419 } else {
9420 buffer.clip_point(position, Bias::Left)
9421 };
9422
9423 let nav_history = editor.nav_history.take();
9424 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9425 s.select_ranges([cursor..cursor]);
9426 });
9427 editor.nav_history = nav_history;
9428
9429 anyhow::Ok(())
9430 })??;
9431
9432 anyhow::Ok(())
9433 })
9434 .detach_and_log_err(cx);
9435 }
9436
9437 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9438 let snapshot = self.buffer.read(cx).read(cx);
9439 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9440 Some(
9441 ranges
9442 .iter()
9443 .map(move |range| {
9444 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9445 })
9446 .collect(),
9447 )
9448 }
9449
9450 fn selection_replacement_ranges(
9451 &self,
9452 range: Range<OffsetUtf16>,
9453 cx: &AppContext,
9454 ) -> Vec<Range<OffsetUtf16>> {
9455 let selections = self.selections.all::<OffsetUtf16>(cx);
9456 let newest_selection = selections
9457 .iter()
9458 .max_by_key(|selection| selection.id)
9459 .unwrap();
9460 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9461 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9462 let snapshot = self.buffer.read(cx).read(cx);
9463 selections
9464 .into_iter()
9465 .map(|mut selection| {
9466 selection.start.0 =
9467 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9468 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9469 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9470 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9471 })
9472 .collect()
9473 }
9474
9475 fn report_copilot_event(
9476 &self,
9477 suggestion_id: Option<String>,
9478 suggestion_accepted: bool,
9479 cx: &AppContext,
9480 ) {
9481 let Some(project) = &self.project else { return };
9482
9483 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9484 let file_extension = self
9485 .buffer
9486 .read(cx)
9487 .as_singleton()
9488 .and_then(|b| b.read(cx).file())
9489 .and_then(|file| Path::new(file.file_name(cx)).extension())
9490 .and_then(|e| e.to_str())
9491 .map(|a| a.to_string());
9492
9493 let telemetry = project.read(cx).client().telemetry().clone();
9494
9495 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9496 }
9497
9498 #[cfg(any(test, feature = "test-support"))]
9499 fn report_editor_event(
9500 &self,
9501 _operation: &'static str,
9502 _file_extension: Option<String>,
9503 _cx: &AppContext,
9504 ) {
9505 }
9506
9507 #[cfg(not(any(test, feature = "test-support")))]
9508 fn report_editor_event(
9509 &self,
9510 operation: &'static str,
9511 file_extension: Option<String>,
9512 cx: &AppContext,
9513 ) {
9514 let Some(project) = &self.project else { return };
9515
9516 // If None, we are in a file without an extension
9517 let file = self
9518 .buffer
9519 .read(cx)
9520 .as_singleton()
9521 .and_then(|b| b.read(cx).file());
9522 let file_extension = file_extension.or(file
9523 .as_ref()
9524 .and_then(|file| Path::new(file.file_name(cx)).extension())
9525 .and_then(|e| e.to_str())
9526 .map(|a| a.to_string()));
9527
9528 let vim_mode = cx
9529 .global::<SettingsStore>()
9530 .raw_user_settings()
9531 .get("vim_mode")
9532 == Some(&serde_json::Value::Bool(true));
9533 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9534 let copilot_enabled_for_language = self
9535 .buffer
9536 .read(cx)
9537 .settings_at(0, cx)
9538 .show_copilot_suggestions;
9539
9540 let telemetry = project.read(cx).client().telemetry().clone();
9541 telemetry.report_editor_event(
9542 file_extension,
9543 vim_mode,
9544 operation,
9545 copilot_enabled,
9546 copilot_enabled_for_language,
9547 )
9548 }
9549
9550 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9551 /// with each line being an array of {text, highlight} objects.
9552 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9553 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9554 return;
9555 };
9556
9557 #[derive(Serialize)]
9558 struct Chunk<'a> {
9559 text: String,
9560 highlight: Option<&'a str>,
9561 }
9562
9563 let snapshot = buffer.read(cx).snapshot();
9564 let range = self
9565 .selected_text_range(cx)
9566 .and_then(|selected_range| {
9567 if selected_range.is_empty() {
9568 None
9569 } else {
9570 Some(selected_range)
9571 }
9572 })
9573 .unwrap_or_else(|| 0..snapshot.len());
9574
9575 let chunks = snapshot.chunks(range, true);
9576 let mut lines = Vec::new();
9577 let mut line: VecDeque<Chunk> = VecDeque::new();
9578
9579 let Some(style) = self.style.as_ref() else {
9580 return;
9581 };
9582
9583 for chunk in chunks {
9584 let highlight = chunk
9585 .syntax_highlight_id
9586 .and_then(|id| id.name(&style.syntax));
9587 let mut chunk_lines = chunk.text.split('\n').peekable();
9588 while let Some(text) = chunk_lines.next() {
9589 let mut merged_with_last_token = false;
9590 if let Some(last_token) = line.back_mut() {
9591 if last_token.highlight == highlight {
9592 last_token.text.push_str(text);
9593 merged_with_last_token = true;
9594 }
9595 }
9596
9597 if !merged_with_last_token {
9598 line.push_back(Chunk {
9599 text: text.into(),
9600 highlight,
9601 });
9602 }
9603
9604 if chunk_lines.peek().is_some() {
9605 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9606 line.pop_front();
9607 }
9608 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9609 line.pop_back();
9610 }
9611
9612 lines.push(mem::take(&mut line));
9613 }
9614 }
9615 }
9616
9617 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9618 return;
9619 };
9620 cx.write_to_clipboard(ClipboardItem::new(lines));
9621 }
9622
9623 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9624 &self.inlay_hint_cache
9625 }
9626
9627 pub fn replay_insert_event(
9628 &mut self,
9629 text: &str,
9630 relative_utf16_range: Option<Range<isize>>,
9631 cx: &mut ViewContext<Self>,
9632 ) {
9633 if !self.input_enabled {
9634 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9635 return;
9636 }
9637 if let Some(relative_utf16_range) = relative_utf16_range {
9638 let selections = self.selections.all::<OffsetUtf16>(cx);
9639 self.change_selections(None, cx, |s| {
9640 let new_ranges = selections.into_iter().map(|range| {
9641 let start = OffsetUtf16(
9642 range
9643 .head()
9644 .0
9645 .saturating_add_signed(relative_utf16_range.start),
9646 );
9647 let end = OffsetUtf16(
9648 range
9649 .head()
9650 .0
9651 .saturating_add_signed(relative_utf16_range.end),
9652 );
9653 start..end
9654 });
9655 s.select_ranges(new_ranges);
9656 });
9657 }
9658
9659 self.handle_input(text, cx);
9660 }
9661
9662 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9663 let Some(project) = self.project.as_ref() else {
9664 return false;
9665 };
9666 let project = project.read(cx);
9667
9668 let mut supports = false;
9669 self.buffer().read(cx).for_each_buffer(|buffer| {
9670 if !supports {
9671 supports = project
9672 .language_servers_for_buffer(buffer.read(cx), cx)
9673 .any(
9674 |(_, server)| match server.capabilities().inlay_hint_provider {
9675 Some(lsp::OneOf::Left(enabled)) => enabled,
9676 Some(lsp::OneOf::Right(_)) => true,
9677 None => false,
9678 },
9679 )
9680 }
9681 });
9682 supports
9683 }
9684
9685 pub fn focus(&self, cx: &mut WindowContext) {
9686 cx.focus(&self.focus_handle)
9687 }
9688
9689 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9690 self.focus_handle.is_focused(cx)
9691 }
9692
9693 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9694 cx.emit(EditorEvent::Focused);
9695
9696 if let Some(rename) = self.pending_rename.as_ref() {
9697 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9698 cx.focus(&rename_editor_focus_handle);
9699 } else {
9700 self.blink_manager.update(cx, BlinkManager::enable);
9701 self.show_cursor_names(cx);
9702 self.buffer.update(cx, |buffer, cx| {
9703 buffer.finalize_last_transaction(cx);
9704 if self.leader_peer_id.is_none() {
9705 buffer.set_active_selections(
9706 &self.selections.disjoint_anchors(),
9707 self.selections.line_mode,
9708 self.cursor_shape,
9709 cx,
9710 );
9711 }
9712 });
9713 }
9714 }
9715
9716 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9717 self.blink_manager.update(cx, BlinkManager::disable);
9718 self.buffer
9719 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9720 self.hide_context_menu(cx);
9721 hide_hover(self, cx);
9722 cx.emit(EditorEvent::Blurred);
9723 cx.notify();
9724 }
9725
9726 pub fn register_action<A: Action>(
9727 &mut self,
9728 listener: impl Fn(&A, &mut WindowContext) + 'static,
9729 ) -> &mut Self {
9730 let listener = Arc::new(listener);
9731
9732 self.editor_actions.push(Box::new(move |cx| {
9733 let _view = cx.view().clone();
9734 let cx = cx.window_context();
9735 let listener = listener.clone();
9736 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9737 let action = action.downcast_ref().unwrap();
9738 if phase == DispatchPhase::Bubble {
9739 listener(action, cx)
9740 }
9741 })
9742 }));
9743 self
9744 }
9745}
9746
9747pub trait CollaborationHub {
9748 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9749 fn user_participant_indices<'a>(
9750 &self,
9751 cx: &'a AppContext,
9752 ) -> &'a HashMap<u64, ParticipantIndex>;
9753 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9754}
9755
9756impl CollaborationHub for Model<Project> {
9757 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9758 self.read(cx).collaborators()
9759 }
9760
9761 fn user_participant_indices<'a>(
9762 &self,
9763 cx: &'a AppContext,
9764 ) -> &'a HashMap<u64, ParticipantIndex> {
9765 self.read(cx).user_store().read(cx).participant_indices()
9766 }
9767
9768 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9769 let this = self.read(cx);
9770 let user_ids = this.collaborators().values().map(|c| c.user_id);
9771 this.user_store().read_with(cx, |user_store, cx| {
9772 user_store.participant_names(user_ids, cx)
9773 })
9774 }
9775}
9776
9777pub trait CompletionProvider {
9778 fn completions(
9779 &self,
9780 buffer: &Model<Buffer>,
9781 buffer_position: text::Anchor,
9782 cx: &mut ViewContext<Editor>,
9783 ) -> Task<Result<Vec<Completion>>>;
9784
9785 fn resolve_completions(
9786 &self,
9787 completion_indices: Vec<usize>,
9788 completions: Arc<RwLock<Box<[Completion]>>>,
9789 cx: &mut ViewContext<Editor>,
9790 ) -> Task<Result<bool>>;
9791
9792 fn apply_additional_edits_for_completion(
9793 &self,
9794 buffer: Model<Buffer>,
9795 completion: Completion,
9796 push_to_history: bool,
9797 cx: &mut ViewContext<Editor>,
9798 ) -> Task<Result<Option<language::Transaction>>>;
9799}
9800
9801impl CompletionProvider for Model<Project> {
9802 fn completions(
9803 &self,
9804 buffer: &Model<Buffer>,
9805 buffer_position: text::Anchor,
9806 cx: &mut ViewContext<Editor>,
9807 ) -> Task<Result<Vec<Completion>>> {
9808 self.update(cx, |project, cx| {
9809 project.completions(&buffer, buffer_position, cx)
9810 })
9811 }
9812
9813 fn resolve_completions(
9814 &self,
9815 completion_indices: Vec<usize>,
9816 completions: Arc<RwLock<Box<[Completion]>>>,
9817 cx: &mut ViewContext<Editor>,
9818 ) -> Task<Result<bool>> {
9819 self.update(cx, |project, cx| {
9820 project.resolve_completions(completion_indices, completions, cx)
9821 })
9822 }
9823
9824 fn apply_additional_edits_for_completion(
9825 &self,
9826 buffer: Model<Buffer>,
9827 completion: Completion,
9828 push_to_history: bool,
9829 cx: &mut ViewContext<Editor>,
9830 ) -> Task<Result<Option<language::Transaction>>> {
9831 self.update(cx, |project, cx| {
9832 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9833 })
9834 }
9835}
9836
9837fn inlay_hint_settings(
9838 location: Anchor,
9839 snapshot: &MultiBufferSnapshot,
9840 cx: &mut ViewContext<'_, Editor>,
9841) -> InlayHintSettings {
9842 let file = snapshot.file_at(location);
9843 let language = snapshot.language_at(location);
9844 let settings = all_language_settings(file, cx);
9845 settings
9846 .language(language.map(|l| l.name()).as_deref())
9847 .inlay_hints
9848}
9849
9850fn consume_contiguous_rows(
9851 contiguous_row_selections: &mut Vec<Selection<Point>>,
9852 selection: &Selection<Point>,
9853 display_map: &DisplaySnapshot,
9854 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9855) -> (u32, u32) {
9856 contiguous_row_selections.push(selection.clone());
9857 let start_row = selection.start.row;
9858 let mut end_row = ending_row(selection, display_map);
9859
9860 while let Some(next_selection) = selections.peek() {
9861 if next_selection.start.row <= end_row {
9862 end_row = ending_row(next_selection, display_map);
9863 contiguous_row_selections.push(selections.next().unwrap().clone());
9864 } else {
9865 break;
9866 }
9867 }
9868 (start_row, end_row)
9869}
9870
9871fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9872 if next_selection.end.column > 0 || next_selection.is_empty() {
9873 display_map.next_line_boundary(next_selection.end).0.row + 1
9874 } else {
9875 next_selection.end.row
9876 }
9877}
9878
9879impl EditorSnapshot {
9880 pub fn remote_selections_in_range<'a>(
9881 &'a self,
9882 range: &'a Range<Anchor>,
9883 collaboration_hub: &dyn CollaborationHub,
9884 cx: &'a AppContext,
9885 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9886 let participant_names = collaboration_hub.user_names(cx);
9887 let participant_indices = collaboration_hub.user_participant_indices(cx);
9888 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9889 let collaborators_by_replica_id = collaborators_by_peer_id
9890 .iter()
9891 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9892 .collect::<HashMap<_, _>>();
9893 self.buffer_snapshot
9894 .remote_selections_in_range(range)
9895 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9896 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9897 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9898 let user_name = participant_names.get(&collaborator.user_id).cloned();
9899 Some(RemoteSelection {
9900 replica_id,
9901 selection,
9902 cursor_shape,
9903 line_mode,
9904 participant_index,
9905 peer_id: collaborator.peer_id,
9906 user_name,
9907 })
9908 })
9909 }
9910
9911 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9912 self.display_snapshot.buffer_snapshot.language_at(position)
9913 }
9914
9915 pub fn is_focused(&self) -> bool {
9916 self.is_focused
9917 }
9918
9919 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&Arc<str>> {
9920 self.placeholder_text.as_ref()
9921 }
9922
9923 pub fn scroll_position(&self) -> gpui::Point<f32> {
9924 self.scroll_anchor.scroll_position(&self.display_snapshot)
9925 }
9926
9927 pub fn gutter_dimensions(
9928 &self,
9929 font_id: FontId,
9930 font_size: Pixels,
9931 em_width: Pixels,
9932 max_line_number_width: Pixels,
9933 cx: &AppContext,
9934 ) -> GutterDimensions {
9935 if !self.show_gutter {
9936 return GutterDimensions::default();
9937 }
9938 let descent = cx.text_system().descent(font_id, font_size);
9939
9940 let show_git_gutter = matches!(
9941 ProjectSettings::get_global(cx).git.git_gutter,
9942 Some(GitGutterSetting::TrackedFiles)
9943 );
9944 let gutter_settings = EditorSettings::get_global(cx).gutter;
9945
9946 let line_gutter_width = if gutter_settings.line_numbers {
9947 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9948 let min_width_for_number_on_gutter = em_width * 4.0;
9949 max_line_number_width.max(min_width_for_number_on_gutter)
9950 } else {
9951 0.0.into()
9952 };
9953
9954 let left_padding = if gutter_settings.code_actions {
9955 em_width * 3.0
9956 } else if show_git_gutter && gutter_settings.line_numbers {
9957 em_width * 2.0
9958 } else if show_git_gutter || gutter_settings.line_numbers {
9959 em_width
9960 } else {
9961 px(0.)
9962 };
9963
9964 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9965 em_width * 4.0
9966 } else if gutter_settings.folds {
9967 em_width * 3.0
9968 } else if gutter_settings.line_numbers {
9969 em_width
9970 } else {
9971 px(0.)
9972 };
9973
9974 GutterDimensions {
9975 left_padding,
9976 right_padding,
9977 width: line_gutter_width + left_padding + right_padding,
9978 margin: -descent,
9979 }
9980 }
9981}
9982
9983impl Deref for EditorSnapshot {
9984 type Target = DisplaySnapshot;
9985
9986 fn deref(&self) -> &Self::Target {
9987 &self.display_snapshot
9988 }
9989}
9990
9991#[derive(Clone, Debug, PartialEq, Eq)]
9992pub enum EditorEvent {
9993 InputIgnored {
9994 text: Arc<str>,
9995 },
9996 InputHandled {
9997 utf16_range_to_replace: Option<Range<isize>>,
9998 text: Arc<str>,
9999 },
10000 ExcerptsAdded {
10001 buffer: Model<Buffer>,
10002 predecessor: ExcerptId,
10003 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10004 },
10005 ExcerptsRemoved {
10006 ids: Vec<ExcerptId>,
10007 },
10008 BufferEdited,
10009 Edited,
10010 Reparsed,
10011 Focused,
10012 Blurred,
10013 DirtyChanged,
10014 Saved,
10015 TitleChanged,
10016 DiffBaseChanged,
10017 SelectionsChanged {
10018 local: bool,
10019 },
10020 ScrollPositionChanged {
10021 local: bool,
10022 autoscroll: bool,
10023 },
10024 Closed,
10025}
10026
10027impl EventEmitter<EditorEvent> for Editor {}
10028
10029impl FocusableView for Editor {
10030 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10031 self.focus_handle.clone()
10032 }
10033}
10034
10035impl Render for Editor {
10036 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10037 let settings = ThemeSettings::get_global(cx);
10038 let text_style = match self.mode {
10039 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10040 color: cx.theme().colors().editor_foreground,
10041 font_family: settings.ui_font.family.clone(),
10042 font_features: settings.ui_font.features,
10043 font_size: rems(0.875).into(),
10044 font_weight: FontWeight::NORMAL,
10045 font_style: FontStyle::Normal,
10046 line_height: relative(settings.buffer_line_height.value()),
10047 background_color: None,
10048 underline: None,
10049 strikethrough: None,
10050 white_space: WhiteSpace::Normal,
10051 },
10052
10053 EditorMode::Full => TextStyle {
10054 color: cx.theme().colors().editor_foreground,
10055 font_family: settings.buffer_font.family.clone(),
10056 font_features: settings.buffer_font.features,
10057 font_size: settings.buffer_font_size(cx).into(),
10058 font_weight: FontWeight::NORMAL,
10059 font_style: FontStyle::Normal,
10060 line_height: relative(settings.buffer_line_height.value()),
10061 background_color: None,
10062 underline: None,
10063 strikethrough: None,
10064 white_space: WhiteSpace::Normal,
10065 },
10066 };
10067
10068 let background = match self.mode {
10069 EditorMode::SingleLine => cx.theme().system().transparent,
10070 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10071 EditorMode::Full => cx.theme().colors().editor_background,
10072 };
10073
10074 EditorElement::new(
10075 cx.view(),
10076 EditorStyle {
10077 background,
10078 local_player: cx.theme().players().local(),
10079 text: text_style,
10080 scrollbar_width: px(12.),
10081 syntax: cx.theme().syntax().clone(),
10082 status: cx.theme().status().clone(),
10083 inlays_style: HighlightStyle {
10084 color: Some(cx.theme().status().hint),
10085 ..HighlightStyle::default()
10086 },
10087 suggestions_style: HighlightStyle {
10088 color: Some(cx.theme().status().predictive),
10089 ..HighlightStyle::default()
10090 },
10091 },
10092 )
10093 }
10094}
10095
10096impl ViewInputHandler for Editor {
10097 fn text_for_range(
10098 &mut self,
10099 range_utf16: Range<usize>,
10100 cx: &mut ViewContext<Self>,
10101 ) -> Option<String> {
10102 Some(
10103 self.buffer
10104 .read(cx)
10105 .read(cx)
10106 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10107 .collect(),
10108 )
10109 }
10110
10111 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10112 // Prevent the IME menu from appearing when holding down an alphabetic key
10113 // while input is disabled.
10114 if !self.input_enabled {
10115 return None;
10116 }
10117
10118 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10119 Some(range.start.0..range.end.0)
10120 }
10121
10122 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10123 let snapshot = self.buffer.read(cx).read(cx);
10124 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10125 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10126 }
10127
10128 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10129 self.clear_highlights::<InputComposition>(cx);
10130 self.ime_transaction.take();
10131 }
10132
10133 fn replace_text_in_range(
10134 &mut self,
10135 range_utf16: Option<Range<usize>>,
10136 text: &str,
10137 cx: &mut ViewContext<Self>,
10138 ) {
10139 if !self.input_enabled {
10140 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10141 return;
10142 }
10143
10144 self.transact(cx, |this, cx| {
10145 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10146 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10147 Some(this.selection_replacement_ranges(range_utf16, cx))
10148 } else {
10149 this.marked_text_ranges(cx)
10150 };
10151
10152 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10153 let newest_selection_id = this.selections.newest_anchor().id;
10154 this.selections
10155 .all::<OffsetUtf16>(cx)
10156 .iter()
10157 .zip(ranges_to_replace.iter())
10158 .find_map(|(selection, range)| {
10159 if selection.id == newest_selection_id {
10160 Some(
10161 (range.start.0 as isize - selection.head().0 as isize)
10162 ..(range.end.0 as isize - selection.head().0 as isize),
10163 )
10164 } else {
10165 None
10166 }
10167 })
10168 });
10169
10170 cx.emit(EditorEvent::InputHandled {
10171 utf16_range_to_replace: range_to_replace,
10172 text: text.into(),
10173 });
10174
10175 if let Some(new_selected_ranges) = new_selected_ranges {
10176 this.change_selections(None, cx, |selections| {
10177 selections.select_ranges(new_selected_ranges)
10178 });
10179 this.backspace(&Default::default(), cx);
10180 }
10181
10182 this.handle_input(text, cx);
10183 });
10184
10185 if let Some(transaction) = self.ime_transaction {
10186 self.buffer.update(cx, |buffer, cx| {
10187 buffer.group_until_transaction(transaction, cx);
10188 });
10189 }
10190
10191 self.unmark_text(cx);
10192 }
10193
10194 fn replace_and_mark_text_in_range(
10195 &mut self,
10196 range_utf16: Option<Range<usize>>,
10197 text: &str,
10198 new_selected_range_utf16: Option<Range<usize>>,
10199 cx: &mut ViewContext<Self>,
10200 ) {
10201 if !self.input_enabled {
10202 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10203 return;
10204 }
10205
10206 let transaction = self.transact(cx, |this, cx| {
10207 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10208 let snapshot = this.buffer.read(cx).read(cx);
10209 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10210 for marked_range in &mut marked_ranges {
10211 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10212 marked_range.start.0 += relative_range_utf16.start;
10213 marked_range.start =
10214 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10215 marked_range.end =
10216 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10217 }
10218 }
10219 Some(marked_ranges)
10220 } else if let Some(range_utf16) = range_utf16 {
10221 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10222 Some(this.selection_replacement_ranges(range_utf16, cx))
10223 } else {
10224 None
10225 };
10226
10227 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10228 let newest_selection_id = this.selections.newest_anchor().id;
10229 this.selections
10230 .all::<OffsetUtf16>(cx)
10231 .iter()
10232 .zip(ranges_to_replace.iter())
10233 .find_map(|(selection, range)| {
10234 if selection.id == newest_selection_id {
10235 Some(
10236 (range.start.0 as isize - selection.head().0 as isize)
10237 ..(range.end.0 as isize - selection.head().0 as isize),
10238 )
10239 } else {
10240 None
10241 }
10242 })
10243 });
10244
10245 cx.emit(EditorEvent::InputHandled {
10246 utf16_range_to_replace: range_to_replace,
10247 text: text.into(),
10248 });
10249
10250 if let Some(ranges) = ranges_to_replace {
10251 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10252 }
10253
10254 let marked_ranges = {
10255 let snapshot = this.buffer.read(cx).read(cx);
10256 this.selections
10257 .disjoint_anchors()
10258 .iter()
10259 .map(|selection| {
10260 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10261 })
10262 .collect::<Vec<_>>()
10263 };
10264
10265 if text.is_empty() {
10266 this.unmark_text(cx);
10267 } else {
10268 this.highlight_text::<InputComposition>(
10269 marked_ranges.clone(),
10270 HighlightStyle {
10271 underline: Some(UnderlineStyle {
10272 thickness: px(1.),
10273 color: None,
10274 wavy: false,
10275 }),
10276 ..Default::default()
10277 },
10278 cx,
10279 );
10280 }
10281
10282 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10283 let use_autoclose = this.use_autoclose;
10284 this.set_use_autoclose(false);
10285 this.handle_input(text, cx);
10286 this.set_use_autoclose(use_autoclose);
10287
10288 if let Some(new_selected_range) = new_selected_range_utf16 {
10289 let snapshot = this.buffer.read(cx).read(cx);
10290 let new_selected_ranges = marked_ranges
10291 .into_iter()
10292 .map(|marked_range| {
10293 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10294 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10295 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10296 snapshot.clip_offset_utf16(new_start, Bias::Left)
10297 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10298 })
10299 .collect::<Vec<_>>();
10300
10301 drop(snapshot);
10302 this.change_selections(None, cx, |selections| {
10303 selections.select_ranges(new_selected_ranges)
10304 });
10305 }
10306 });
10307
10308 self.ime_transaction = self.ime_transaction.or(transaction);
10309 if let Some(transaction) = self.ime_transaction {
10310 self.buffer.update(cx, |buffer, cx| {
10311 buffer.group_until_transaction(transaction, cx);
10312 });
10313 }
10314
10315 if self.text_highlights::<InputComposition>(cx).is_none() {
10316 self.ime_transaction.take();
10317 }
10318 }
10319
10320 fn bounds_for_range(
10321 &mut self,
10322 range_utf16: Range<usize>,
10323 element_bounds: gpui::Bounds<Pixels>,
10324 cx: &mut ViewContext<Self>,
10325 ) -> Option<gpui::Bounds<Pixels>> {
10326 let text_layout_details = self.text_layout_details(cx);
10327 let style = &text_layout_details.editor_style;
10328 let font_id = cx.text_system().resolve_font(&style.text.font());
10329 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10330 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10331 let em_width = cx
10332 .text_system()
10333 .typographic_bounds(font_id, font_size, 'm')
10334 .unwrap()
10335 .size
10336 .width;
10337
10338 let snapshot = self.snapshot(cx);
10339 let scroll_position = snapshot.scroll_position();
10340 let scroll_left = scroll_position.x * em_width;
10341
10342 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10343 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10344 + self.gutter_width;
10345 let y = line_height * (start.row() as f32 - scroll_position.y);
10346
10347 Some(Bounds {
10348 origin: element_bounds.origin + point(x, y),
10349 size: size(em_width, line_height),
10350 })
10351 }
10352}
10353
10354trait SelectionExt {
10355 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10356 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10357 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10358 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10359 -> Range<u32>;
10360}
10361
10362impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10363 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10364 let start = self.start.to_point(buffer);
10365 let end = self.end.to_point(buffer);
10366 if self.reversed {
10367 end..start
10368 } else {
10369 start..end
10370 }
10371 }
10372
10373 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10374 let start = self.start.to_offset(buffer);
10375 let end = self.end.to_offset(buffer);
10376 if self.reversed {
10377 end..start
10378 } else {
10379 start..end
10380 }
10381 }
10382
10383 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10384 let start = self
10385 .start
10386 .to_point(&map.buffer_snapshot)
10387 .to_display_point(map);
10388 let end = self
10389 .end
10390 .to_point(&map.buffer_snapshot)
10391 .to_display_point(map);
10392 if self.reversed {
10393 end..start
10394 } else {
10395 start..end
10396 }
10397 }
10398
10399 fn spanned_rows(
10400 &self,
10401 include_end_if_at_line_start: bool,
10402 map: &DisplaySnapshot,
10403 ) -> Range<u32> {
10404 let start = self.start.to_point(&map.buffer_snapshot);
10405 let mut end = self.end.to_point(&map.buffer_snapshot);
10406 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10407 end.row -= 1;
10408 }
10409
10410 let buffer_start = map.prev_line_boundary(start).0;
10411 let buffer_end = map.next_line_boundary(end).0;
10412 buffer_start.row..buffer_end.row + 1
10413 }
10414}
10415
10416impl<T: InvalidationRegion> InvalidationStack<T> {
10417 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10418 where
10419 S: Clone + ToOffset,
10420 {
10421 while let Some(region) = self.last() {
10422 let all_selections_inside_invalidation_ranges =
10423 if selections.len() == region.ranges().len() {
10424 selections
10425 .iter()
10426 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10427 .all(|(selection, invalidation_range)| {
10428 let head = selection.head().to_offset(buffer);
10429 invalidation_range.start <= head && invalidation_range.end >= head
10430 })
10431 } else {
10432 false
10433 };
10434
10435 if all_selections_inside_invalidation_ranges {
10436 break;
10437 } else {
10438 self.pop();
10439 }
10440 }
10441 }
10442}
10443
10444impl<T> Default for InvalidationStack<T> {
10445 fn default() -> Self {
10446 Self(Default::default())
10447 }
10448}
10449
10450impl<T> Deref for InvalidationStack<T> {
10451 type Target = Vec<T>;
10452
10453 fn deref(&self) -> &Self::Target {
10454 &self.0
10455 }
10456}
10457
10458impl<T> DerefMut for InvalidationStack<T> {
10459 fn deref_mut(&mut self) -> &mut Self::Target {
10460 &mut self.0
10461 }
10462}
10463
10464impl InvalidationRegion for SnippetState {
10465 fn ranges(&self) -> &[Range<Anchor>] {
10466 &self.ranges[self.active_index]
10467 }
10468}
10469
10470pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10471 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10472
10473 Arc::new(move |cx: &mut BlockContext| {
10474 let group_id: SharedString = cx.block_id.to_string().into();
10475
10476 let mut text_style = cx.text_style().clone();
10477 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10478
10479 h_flex()
10480 .id(cx.block_id)
10481 .group(group_id.clone())
10482 .relative()
10483 .size_full()
10484 .pl(cx.gutter_dimensions.width)
10485 .w(cx.max_width + cx.gutter_dimensions.width)
10486 .child(
10487 div()
10488 .flex()
10489 .w(cx.anchor_x - cx.gutter_dimensions.width)
10490 .flex_shrink(),
10491 )
10492 .child(div().flex().flex_shrink_0().child(
10493 StyledText::new(text_without_backticks.clone()).with_highlights(
10494 &text_style,
10495 code_ranges.iter().map(|range| {
10496 (
10497 range.clone(),
10498 HighlightStyle {
10499 font_weight: Some(FontWeight::BOLD),
10500 ..Default::default()
10501 },
10502 )
10503 }),
10504 ),
10505 ))
10506 .child(
10507 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10508 .icon_color(Color::Muted)
10509 .size(ButtonSize::Compact)
10510 .style(ButtonStyle::Transparent)
10511 .visible_on_hover(group_id)
10512 .on_click({
10513 let message = diagnostic.message.clone();
10514 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10515 })
10516 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10517 )
10518 .into_any_element()
10519 })
10520}
10521
10522pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10523 let mut text_without_backticks = String::new();
10524 let mut code_ranges = Vec::new();
10525
10526 if let Some(source) = &diagnostic.source {
10527 text_without_backticks.push_str(&source);
10528 code_ranges.push(0..source.len());
10529 text_without_backticks.push_str(": ");
10530 }
10531
10532 let mut prev_offset = 0;
10533 let mut in_code_block = false;
10534 for (ix, _) in diagnostic
10535 .message
10536 .match_indices('`')
10537 .chain([(diagnostic.message.len(), "")])
10538 {
10539 let prev_len = text_without_backticks.len();
10540 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10541 prev_offset = ix + 1;
10542 if in_code_block {
10543 code_ranges.push(prev_len..text_without_backticks.len());
10544 in_code_block = false;
10545 } else {
10546 in_code_block = true;
10547 }
10548 }
10549
10550 (text_without_backticks.into(), code_ranges)
10551}
10552
10553fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10554 match (severity, valid) {
10555 (DiagnosticSeverity::ERROR, true) => colors.error,
10556 (DiagnosticSeverity::ERROR, false) => colors.error,
10557 (DiagnosticSeverity::WARNING, true) => colors.warning,
10558 (DiagnosticSeverity::WARNING, false) => colors.warning,
10559 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10560 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10561 (DiagnosticSeverity::HINT, true) => colors.info,
10562 (DiagnosticSeverity::HINT, false) => colors.info,
10563 _ => colors.ignored,
10564 }
10565}
10566
10567pub fn styled_runs_for_code_label<'a>(
10568 label: &'a CodeLabel,
10569 syntax_theme: &'a theme::SyntaxTheme,
10570) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10571 let fade_out = HighlightStyle {
10572 fade_out: Some(0.35),
10573 ..Default::default()
10574 };
10575
10576 let mut prev_end = label.filter_range.end;
10577 label
10578 .runs
10579 .iter()
10580 .enumerate()
10581 .flat_map(move |(ix, (range, highlight_id))| {
10582 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10583 style
10584 } else {
10585 return Default::default();
10586 };
10587 let mut muted_style = style;
10588 muted_style.highlight(fade_out);
10589
10590 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10591 if range.start >= label.filter_range.end {
10592 if range.start > prev_end {
10593 runs.push((prev_end..range.start, fade_out));
10594 }
10595 runs.push((range.clone(), muted_style));
10596 } else if range.end <= label.filter_range.end {
10597 runs.push((range.clone(), style));
10598 } else {
10599 runs.push((range.start..label.filter_range.end, style));
10600 runs.push((label.filter_range.end..range.end, muted_style));
10601 }
10602 prev_end = cmp::max(prev_end, range.end);
10603
10604 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10605 runs.push((prev_end..label.text.len(), fade_out));
10606 }
10607
10608 runs
10609 })
10610}
10611
10612pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10613 let mut index = 0;
10614 let mut codepoints = text.char_indices().peekable();
10615
10616 std::iter::from_fn(move || {
10617 let start_index = index;
10618 while let Some((new_index, codepoint)) = codepoints.next() {
10619 index = new_index + codepoint.len_utf8();
10620 let current_upper = codepoint.is_uppercase();
10621 let next_upper = codepoints
10622 .peek()
10623 .map(|(_, c)| c.is_uppercase())
10624 .unwrap_or(false);
10625
10626 if !current_upper && next_upper {
10627 return Some(&text[start_index..index]);
10628 }
10629 }
10630
10631 index = text.len();
10632 if start_index < text.len() {
10633 return Some(&text[start_index..]);
10634 }
10635 None
10636 })
10637 .flat_map(|word| word.split_inclusive('_'))
10638 .flat_map(|word| word.split_inclusive('-'))
10639}
10640
10641trait RangeToAnchorExt {
10642 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10643}
10644
10645impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10646 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10647 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10648 }
10649}