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, StrikethroughStyle, Styled, StyledText,
64 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
65 ViewInputHandler, VisualContext, 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
934 if completion.lsp_completion.deprecated.unwrap_or(false) {
935 highlight.strikethrough = Some(StrikethroughStyle {
936 thickness: 1.0.into(),
937 ..Default::default()
938 });
939 highlight.color = Some(cx.theme().colors().text_muted);
940 }
941
942 (range, highlight)
943 },
944 ),
945 );
946 let completion_label = StyledText::new(completion.label.text.clone())
947 .with_highlights(&style.text, highlights);
948 let documentation_label =
949 if let Some(Documentation::SingleLine(text)) = documentation {
950 if text.trim().is_empty() {
951 None
952 } else {
953 Some(
954 h_flex().ml_4().child(
955 Label::new(text.clone())
956 .size(LabelSize::Small)
957 .color(Color::Muted),
958 ),
959 )
960 }
961 } else {
962 None
963 };
964
965 div().min_w(px(220.)).max_w(px(540.)).child(
966 ListItem::new(mat.candidate_id)
967 .inset(true)
968 .selected(item_ix == selected_item)
969 .on_click(cx.listener(move |editor, _event, cx| {
970 cx.stop_propagation();
971 if let Some(task) = editor.confirm_completion(
972 &ConfirmCompletion {
973 item_ix: Some(item_ix),
974 },
975 cx,
976 ) {
977 task.detach_and_log_err(cx)
978 }
979 }))
980 .child(h_flex().overflow_hidden().child(completion_label))
981 .end_slot::<Div>(documentation_label),
982 )
983 })
984 .collect()
985 },
986 )
987 .max_h(max_height)
988 .track_scroll(self.scroll_handle.clone())
989 .with_width_from_item(widest_completion_ix);
990
991 Popover::new()
992 .child(list)
993 .when_some(multiline_docs, |popover, multiline_docs| {
994 popover.aside(multiline_docs)
995 })
996 .into_any_element()
997 }
998
999 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1000 let mut matches = if let Some(query) = query {
1001 fuzzy::match_strings(
1002 &self.match_candidates,
1003 query,
1004 query.chars().any(|c| c.is_uppercase()),
1005 100,
1006 &Default::default(),
1007 executor,
1008 )
1009 .await
1010 } else {
1011 self.match_candidates
1012 .iter()
1013 .enumerate()
1014 .map(|(candidate_id, candidate)| StringMatch {
1015 candidate_id,
1016 score: Default::default(),
1017 positions: Default::default(),
1018 string: candidate.string.clone(),
1019 })
1020 .collect()
1021 };
1022
1023 // Remove all candidates where the query's start does not match the start of any word in the candidate
1024 if let Some(query) = query {
1025 if let Some(query_start) = query.chars().next() {
1026 matches.retain(|string_match| {
1027 split_words(&string_match.string).any(|word| {
1028 // Check that the first codepoint of the word as lowercase matches the first
1029 // codepoint of the query as lowercase
1030 word.chars()
1031 .flat_map(|codepoint| codepoint.to_lowercase())
1032 .zip(query_start.to_lowercase())
1033 .all(|(word_cp, query_cp)| word_cp == query_cp)
1034 })
1035 });
1036 }
1037 }
1038
1039 let completions = self.completions.read();
1040 matches.sort_unstable_by_key(|mat| {
1041 // We do want to strike a balance here between what the language server tells us
1042 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1043 // `Creat` and there is a local variable called `CreateComponent`).
1044 // So what we do is: we bucket all matches into two buckets
1045 // - Strong matches
1046 // - Weak matches
1047 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1048 // and the Weak matches are the rest.
1049 //
1050 // For the strong matches, we sort by the language-servers score first and for the weak
1051 // matches, we prefer our fuzzy finder first.
1052 //
1053 // The thinking behind that: it's useless to take the sort_text the language-server gives
1054 // us into account when it's obviously a bad match.
1055
1056 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1057 enum MatchScore<'a> {
1058 Strong {
1059 sort_text: Option<&'a str>,
1060 score: Reverse<OrderedFloat<f64>>,
1061 sort_key: (usize, &'a str),
1062 },
1063 Weak {
1064 score: Reverse<OrderedFloat<f64>>,
1065 sort_text: Option<&'a str>,
1066 sort_key: (usize, &'a str),
1067 },
1068 }
1069
1070 let completion = &completions[mat.candidate_id];
1071 let sort_key = completion.sort_key();
1072 let sort_text = completion.lsp_completion.sort_text.as_deref();
1073 let score = Reverse(OrderedFloat(mat.score));
1074
1075 if mat.score >= 0.2 {
1076 MatchScore::Strong {
1077 sort_text,
1078 score,
1079 sort_key,
1080 }
1081 } else {
1082 MatchScore::Weak {
1083 score,
1084 sort_text,
1085 sort_key,
1086 }
1087 }
1088 });
1089
1090 for mat in &mut matches {
1091 let completion = &completions[mat.candidate_id];
1092 mat.string = completion.label.text.clone();
1093 for position in &mut mat.positions {
1094 *position += completion.label.filter_range.start;
1095 }
1096 }
1097 drop(completions);
1098
1099 self.matches = matches.into();
1100 self.selected_item = 0;
1101 }
1102}
1103
1104#[derive(Clone)]
1105struct CodeActionsMenu {
1106 actions: Arc<[CodeAction]>,
1107 buffer: Model<Buffer>,
1108 selected_item: usize,
1109 scroll_handle: UniformListScrollHandle,
1110 deployed_from_indicator: bool,
1111}
1112
1113impl CodeActionsMenu {
1114 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1115 self.selected_item = 0;
1116 self.scroll_handle.scroll_to_item(self.selected_item);
1117 cx.notify()
1118 }
1119
1120 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1121 if self.selected_item > 0 {
1122 self.selected_item -= 1;
1123 } else {
1124 self.selected_item = self.actions.len() - 1;
1125 }
1126 self.scroll_handle.scroll_to_item(self.selected_item);
1127 cx.notify();
1128 }
1129
1130 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1131 if self.selected_item + 1 < self.actions.len() {
1132 self.selected_item += 1;
1133 } else {
1134 self.selected_item = 0;
1135 }
1136 self.scroll_handle.scroll_to_item(self.selected_item);
1137 cx.notify();
1138 }
1139
1140 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1141 self.selected_item = self.actions.len() - 1;
1142 self.scroll_handle.scroll_to_item(self.selected_item);
1143 cx.notify()
1144 }
1145
1146 fn visible(&self) -> bool {
1147 !self.actions.is_empty()
1148 }
1149
1150 fn render(
1151 &self,
1152 mut cursor_position: DisplayPoint,
1153 _style: &EditorStyle,
1154 max_height: Pixels,
1155 cx: &mut ViewContext<Editor>,
1156 ) -> (DisplayPoint, AnyElement) {
1157 let actions = self.actions.clone();
1158 let selected_item = self.selected_item;
1159
1160 let element = uniform_list(
1161 cx.view().clone(),
1162 "code_actions_menu",
1163 self.actions.len(),
1164 move |_this, range, cx| {
1165 actions[range.clone()]
1166 .iter()
1167 .enumerate()
1168 .map(|(ix, action)| {
1169 let item_ix = range.start + ix;
1170 let selected = selected_item == item_ix;
1171 let colors = cx.theme().colors();
1172 div()
1173 .px_2()
1174 .text_color(colors.text)
1175 .when(selected, |style| {
1176 style
1177 .bg(colors.element_active)
1178 .text_color(colors.text_accent)
1179 })
1180 .hover(|style| {
1181 style
1182 .bg(colors.element_hover)
1183 .text_color(colors.text_accent)
1184 })
1185 .on_mouse_down(
1186 MouseButton::Left,
1187 cx.listener(move |editor, _, cx| {
1188 cx.stop_propagation();
1189 if let Some(task) = editor.confirm_code_action(
1190 &ConfirmCodeAction {
1191 item_ix: Some(item_ix),
1192 },
1193 cx,
1194 ) {
1195 task.detach_and_log_err(cx)
1196 }
1197 }),
1198 )
1199 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1200 .child(SharedString::from(action.lsp_action.title.clone()))
1201 })
1202 .collect()
1203 },
1204 )
1205 .elevation_1(cx)
1206 .px_2()
1207 .py_1()
1208 .max_h(max_height)
1209 .track_scroll(self.scroll_handle.clone())
1210 .with_width_from_item(
1211 self.actions
1212 .iter()
1213 .enumerate()
1214 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1215 .map(|(ix, _)| ix),
1216 )
1217 .into_any_element();
1218
1219 if self.deployed_from_indicator {
1220 *cursor_position.column_mut() = 0;
1221 }
1222
1223 (cursor_position, element)
1224 }
1225}
1226
1227#[derive(Debug)]
1228pub(crate) struct CopilotState {
1229 excerpt_id: Option<ExcerptId>,
1230 pending_refresh: Task<Option<()>>,
1231 pending_cycling_refresh: Task<Option<()>>,
1232 cycled: bool,
1233 completions: Vec<copilot::Completion>,
1234 active_completion_index: usize,
1235 suggestion: Option<Inlay>,
1236}
1237
1238impl Default for CopilotState {
1239 fn default() -> Self {
1240 Self {
1241 excerpt_id: None,
1242 pending_cycling_refresh: Task::ready(Some(())),
1243 pending_refresh: Task::ready(Some(())),
1244 completions: Default::default(),
1245 active_completion_index: 0,
1246 cycled: false,
1247 suggestion: None,
1248 }
1249 }
1250}
1251
1252impl CopilotState {
1253 fn active_completion(&self) -> Option<&copilot::Completion> {
1254 self.completions.get(self.active_completion_index)
1255 }
1256
1257 fn text_for_active_completion(
1258 &self,
1259 cursor: Anchor,
1260 buffer: &MultiBufferSnapshot,
1261 ) -> Option<&str> {
1262 use language::ToOffset as _;
1263
1264 let completion = self.active_completion()?;
1265 let excerpt_id = self.excerpt_id?;
1266 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1267 if excerpt_id != cursor.excerpt_id
1268 || !completion.range.start.is_valid(completion_buffer)
1269 || !completion.range.end.is_valid(completion_buffer)
1270 {
1271 return None;
1272 }
1273
1274 let mut completion_range = completion.range.to_offset(&completion_buffer);
1275 let prefix_len = Self::common_prefix(
1276 completion_buffer.chars_for_range(completion_range.clone()),
1277 completion.text.chars(),
1278 );
1279 completion_range.start += prefix_len;
1280 let suffix_len = Self::common_prefix(
1281 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1282 completion.text[prefix_len..].chars().rev(),
1283 );
1284 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1285
1286 if completion_range.is_empty()
1287 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1288 {
1289 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1290 if completion_text.trim().is_empty() {
1291 None
1292 } else {
1293 Some(completion_text)
1294 }
1295 } else {
1296 None
1297 }
1298 }
1299
1300 fn cycle_completions(&mut self, direction: Direction) {
1301 match direction {
1302 Direction::Prev => {
1303 self.active_completion_index = if self.active_completion_index == 0 {
1304 self.completions.len().saturating_sub(1)
1305 } else {
1306 self.active_completion_index - 1
1307 };
1308 }
1309 Direction::Next => {
1310 if self.completions.len() == 0 {
1311 self.active_completion_index = 0
1312 } else {
1313 self.active_completion_index =
1314 (self.active_completion_index + 1) % self.completions.len();
1315 }
1316 }
1317 }
1318 }
1319
1320 fn push_completion(&mut self, new_completion: copilot::Completion) {
1321 for completion in &self.completions {
1322 if completion.text == new_completion.text && completion.range == new_completion.range {
1323 return;
1324 }
1325 }
1326 self.completions.push(new_completion);
1327 }
1328
1329 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1330 a.zip(b)
1331 .take_while(|(a, b)| a == b)
1332 .map(|(a, _)| a.len_utf8())
1333 .sum()
1334 }
1335}
1336
1337#[derive(Debug)]
1338struct ActiveDiagnosticGroup {
1339 primary_range: Range<Anchor>,
1340 primary_message: String,
1341 blocks: HashMap<BlockId, Diagnostic>,
1342 is_valid: bool,
1343}
1344
1345#[derive(Serialize, Deserialize)]
1346pub struct ClipboardSelection {
1347 pub len: usize,
1348 pub is_entire_line: bool,
1349 pub first_line_indent: u32,
1350}
1351
1352#[derive(Debug)]
1353pub(crate) struct NavigationData {
1354 cursor_anchor: Anchor,
1355 cursor_position: Point,
1356 scroll_anchor: ScrollAnchor,
1357 scroll_top_row: u32,
1358}
1359
1360enum GotoDefinitionKind {
1361 Symbol,
1362 Type,
1363 Implementation,
1364}
1365
1366#[derive(Debug, Clone)]
1367enum InlayHintRefreshReason {
1368 Toggle(bool),
1369 SettingsChange(InlayHintSettings),
1370 NewLinesShown,
1371 BufferEdited(HashSet<Arc<Language>>),
1372 RefreshRequested,
1373 ExcerptsRemoved(Vec<ExcerptId>),
1374}
1375
1376impl InlayHintRefreshReason {
1377 fn description(&self) -> &'static str {
1378 match self {
1379 Self::Toggle(_) => "toggle",
1380 Self::SettingsChange(_) => "settings change",
1381 Self::NewLinesShown => "new lines shown",
1382 Self::BufferEdited(_) => "buffer edited",
1383 Self::RefreshRequested => "refresh requested",
1384 Self::ExcerptsRemoved(_) => "excerpts removed",
1385 }
1386 }
1387}
1388
1389impl Editor {
1390 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1391 let buffer = cx.new_model(|cx| {
1392 Buffer::new(
1393 0,
1394 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1395 String::new(),
1396 )
1397 });
1398 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1399 Self::new(EditorMode::SingleLine, buffer, None, cx)
1400 }
1401
1402 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1403 let buffer = cx.new_model(|cx| {
1404 Buffer::new(
1405 0,
1406 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1407 String::new(),
1408 )
1409 });
1410 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1411 Self::new(EditorMode::Full, buffer, None, cx)
1412 }
1413
1414 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1415 let buffer = cx.new_model(|cx| {
1416 Buffer::new(
1417 0,
1418 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1419 String::new(),
1420 )
1421 });
1422 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1423 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1424 }
1425
1426 pub fn for_buffer(
1427 buffer: Model<Buffer>,
1428 project: Option<Model<Project>>,
1429 cx: &mut ViewContext<Self>,
1430 ) -> Self {
1431 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1432 Self::new(EditorMode::Full, buffer, project, cx)
1433 }
1434
1435 pub fn for_multibuffer(
1436 buffer: Model<MultiBuffer>,
1437 project: Option<Model<Project>>,
1438 cx: &mut ViewContext<Self>,
1439 ) -> Self {
1440 Self::new(EditorMode::Full, buffer, project, cx)
1441 }
1442
1443 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1444 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1445 self.display_map.update(cx, |display_map, cx| {
1446 let snapshot = display_map.snapshot(cx);
1447 clone.display_map.update(cx, |display_map, cx| {
1448 display_map.set_state(&snapshot, cx);
1449 });
1450 });
1451 clone.selections.clone_state(&self.selections);
1452 clone.scroll_manager.clone_state(&self.scroll_manager);
1453 clone.searchable = self.searchable;
1454 clone
1455 }
1456
1457 fn new(
1458 mode: EditorMode,
1459 buffer: Model<MultiBuffer>,
1460 project: Option<Model<Project>>,
1461 cx: &mut ViewContext<Self>,
1462 ) -> Self {
1463 let style = cx.text_style();
1464 let font_size = style.font_size.to_pixels(cx.rem_size());
1465 let display_map = cx.new_model(|cx| {
1466 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1467 });
1468
1469 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1470
1471 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1472
1473 let soft_wrap_mode_override =
1474 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1475
1476 let mut project_subscriptions = Vec::new();
1477 if mode == EditorMode::Full {
1478 if let Some(project) = project.as_ref() {
1479 if buffer.read(cx).is_singleton() {
1480 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1481 cx.emit(EditorEvent::TitleChanged);
1482 }));
1483 }
1484 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1485 if let project::Event::RefreshInlayHints = event {
1486 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1487 };
1488 }));
1489 }
1490 }
1491
1492 let inlay_hint_settings = inlay_hint_settings(
1493 selections.newest_anchor().head(),
1494 &buffer.read(cx).snapshot(cx),
1495 cx,
1496 );
1497
1498 let focus_handle = cx.focus_handle();
1499 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1500 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1501
1502 let mut this = Self {
1503 focus_handle,
1504 buffer: buffer.clone(),
1505 display_map: display_map.clone(),
1506 selections,
1507 scroll_manager: ScrollManager::new(cx),
1508 columnar_selection_tail: None,
1509 add_selections_state: None,
1510 select_next_state: None,
1511 select_prev_state: None,
1512 selection_history: Default::default(),
1513 autoclose_regions: Default::default(),
1514 snippet_stack: Default::default(),
1515 select_larger_syntax_node_stack: Vec::new(),
1516 ime_transaction: Default::default(),
1517 active_diagnostics: None,
1518 soft_wrap_mode_override,
1519 completion_provider: project.clone().map(|project| Box::new(project) as _),
1520 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1521 project,
1522 blink_manager: blink_manager.clone(),
1523 show_local_selections: true,
1524 mode,
1525 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1526 show_gutter: mode == EditorMode::Full,
1527 show_wrap_guides: None,
1528 placeholder_text: None,
1529 highlighted_rows: None,
1530 background_highlights: Default::default(),
1531 inlay_background_highlights: Default::default(),
1532 nav_history: None,
1533 context_menu: RwLock::new(None),
1534 mouse_context_menu: None,
1535 completion_tasks: Default::default(),
1536 next_completion_id: 0,
1537 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1538 next_inlay_id: 0,
1539 available_code_actions: Default::default(),
1540 code_actions_task: Default::default(),
1541 document_highlights_task: Default::default(),
1542 pending_rename: Default::default(),
1543 searchable: true,
1544 cursor_shape: Default::default(),
1545 autoindent_mode: Some(AutoindentMode::EachLine),
1546 collapse_matches: false,
1547 workspace: None,
1548 keymap_context_layers: Default::default(),
1549 input_enabled: true,
1550 use_modal_editing: mode == EditorMode::Full,
1551 read_only: false,
1552 use_autoclose: true,
1553 auto_replace_emoji_shortcode: false,
1554 leader_peer_id: None,
1555 remote_id: None,
1556 hover_state: Default::default(),
1557 hovered_link_state: Default::default(),
1558 copilot_state: Default::default(),
1559 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1560 gutter_hovered: false,
1561 pixel_position_of_newest_cursor: None,
1562 gutter_width: Default::default(),
1563 style: None,
1564 show_cursor_names: false,
1565 hovered_cursors: Default::default(),
1566 editor_actions: Default::default(),
1567 show_copilot_suggestions: mode == EditorMode::Full,
1568 custom_context_menu: None,
1569 _subscriptions: vec![
1570 cx.observe(&buffer, Self::on_buffer_changed),
1571 cx.subscribe(&buffer, Self::on_buffer_event),
1572 cx.observe(&display_map, Self::on_display_map_changed),
1573 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1574 cx.observe_global::<SettingsStore>(Self::settings_changed),
1575 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1576 cx.observe_window_activation(|editor, cx| {
1577 let active = cx.is_window_active();
1578 editor.blink_manager.update(cx, |blink_manager, cx| {
1579 if active {
1580 blink_manager.enable(cx);
1581 } else {
1582 blink_manager.show_cursor(cx);
1583 blink_manager.disable(cx);
1584 }
1585 });
1586 }),
1587 ],
1588 };
1589
1590 this._subscriptions.extend(project_subscriptions);
1591
1592 this.end_selection(cx);
1593 this.scroll_manager.show_scrollbar(cx);
1594
1595 if mode == EditorMode::Full {
1596 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1597 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1598 }
1599
1600 this.report_editor_event("open", None, cx);
1601 this
1602 }
1603
1604 fn key_context(&self, cx: &AppContext) -> KeyContext {
1605 let mut key_context = KeyContext::default();
1606 key_context.add("Editor");
1607 let mode = match self.mode {
1608 EditorMode::SingleLine => "single_line",
1609 EditorMode::AutoHeight { .. } => "auto_height",
1610 EditorMode::Full => "full",
1611 };
1612 key_context.set("mode", mode);
1613 if self.pending_rename.is_some() {
1614 key_context.add("renaming");
1615 }
1616 if self.context_menu_visible() {
1617 match self.context_menu.read().as_ref() {
1618 Some(ContextMenu::Completions(_)) => {
1619 key_context.add("menu");
1620 key_context.add("showing_completions")
1621 }
1622 Some(ContextMenu::CodeActions(_)) => {
1623 key_context.add("menu");
1624 key_context.add("showing_code_actions")
1625 }
1626 None => {}
1627 }
1628 }
1629
1630 for layer in self.keymap_context_layers.values() {
1631 key_context.extend(layer);
1632 }
1633
1634 if let Some(extension) = self
1635 .buffer
1636 .read(cx)
1637 .as_singleton()
1638 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1639 {
1640 key_context.set("extension", extension.to_string());
1641 }
1642
1643 if self.has_active_copilot_suggestion(cx) {
1644 key_context.add("copilot_suggestion");
1645 }
1646
1647 key_context
1648 }
1649
1650 pub fn new_file(
1651 workspace: &mut Workspace,
1652 _: &workspace::NewFile,
1653 cx: &mut ViewContext<Workspace>,
1654 ) {
1655 let project = workspace.project().clone();
1656 if project.read(cx).is_remote() {
1657 cx.propagate();
1658 } else if let Some(buffer) = project
1659 .update(cx, |project, cx| project.create_buffer("", None, cx))
1660 .log_err()
1661 {
1662 workspace.add_item_to_active_pane(
1663 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1664 cx,
1665 );
1666 }
1667 }
1668
1669 pub fn new_file_in_direction(
1670 workspace: &mut Workspace,
1671 action: &workspace::NewFileInDirection,
1672 cx: &mut ViewContext<Workspace>,
1673 ) {
1674 let project = workspace.project().clone();
1675 if project.read(cx).is_remote() {
1676 cx.propagate();
1677 } else if let Some(buffer) = project
1678 .update(cx, |project, cx| project.create_buffer("", None, cx))
1679 .log_err()
1680 {
1681 workspace.split_item(
1682 action.0,
1683 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1684 cx,
1685 );
1686 }
1687 }
1688
1689 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1690 self.buffer.read(cx).replica_id()
1691 }
1692
1693 pub fn leader_peer_id(&self) -> Option<PeerId> {
1694 self.leader_peer_id
1695 }
1696
1697 pub fn buffer(&self) -> &Model<MultiBuffer> {
1698 &self.buffer
1699 }
1700
1701 pub fn workspace(&self) -> Option<View<Workspace>> {
1702 self.workspace.as_ref()?.0.upgrade()
1703 }
1704
1705 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1706 self.buffer().read(cx).title(cx)
1707 }
1708
1709 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1710 EditorSnapshot {
1711 mode: self.mode,
1712 show_gutter: self.show_gutter,
1713 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1714 scroll_anchor: self.scroll_manager.anchor(),
1715 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1716 placeholder_text: self.placeholder_text.clone(),
1717 is_focused: self.focus_handle.is_focused(cx),
1718 }
1719 }
1720
1721 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1722 self.buffer.read(cx).language_at(point, cx)
1723 }
1724
1725 pub fn file_at<T: ToOffset>(
1726 &self,
1727 point: T,
1728 cx: &AppContext,
1729 ) -> Option<Arc<dyn language::File>> {
1730 self.buffer.read(cx).read(cx).file_at(point).cloned()
1731 }
1732
1733 pub fn active_excerpt(
1734 &self,
1735 cx: &AppContext,
1736 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1737 self.buffer
1738 .read(cx)
1739 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1740 }
1741
1742 pub fn mode(&self) -> EditorMode {
1743 self.mode
1744 }
1745
1746 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1747 self.collaboration_hub.as_deref()
1748 }
1749
1750 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1751 self.collaboration_hub = Some(hub);
1752 }
1753
1754 pub fn set_custom_context_menu(
1755 &mut self,
1756 f: impl 'static
1757 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1758 ) {
1759 self.custom_context_menu = Some(Box::new(f))
1760 }
1761
1762 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1763 self.completion_provider = Some(hub);
1764 }
1765
1766 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1767 self.placeholder_text.as_deref()
1768 }
1769
1770 pub fn set_placeholder_text(
1771 &mut self,
1772 placeholder_text: impl Into<Arc<str>>,
1773 cx: &mut ViewContext<Self>,
1774 ) {
1775 let placeholder_text = Some(placeholder_text.into());
1776 if self.placeholder_text != placeholder_text {
1777 self.placeholder_text = placeholder_text;
1778 cx.notify();
1779 }
1780 }
1781
1782 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1783 self.cursor_shape = cursor_shape;
1784 cx.notify();
1785 }
1786
1787 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1788 self.collapse_matches = collapse_matches;
1789 }
1790
1791 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1792 if self.collapse_matches {
1793 return range.start..range.start;
1794 }
1795 range.clone()
1796 }
1797
1798 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1799 if self.display_map.read(cx).clip_at_line_ends != clip {
1800 self.display_map
1801 .update(cx, |map, _| map.clip_at_line_ends = clip);
1802 }
1803 }
1804
1805 pub fn set_keymap_context_layer<Tag: 'static>(
1806 &mut self,
1807 context: KeyContext,
1808 cx: &mut ViewContext<Self>,
1809 ) {
1810 self.keymap_context_layers
1811 .insert(TypeId::of::<Tag>(), context);
1812 cx.notify();
1813 }
1814
1815 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1816 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1817 cx.notify();
1818 }
1819
1820 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1821 self.input_enabled = input_enabled;
1822 }
1823
1824 pub fn set_autoindent(&mut self, autoindent: bool) {
1825 if autoindent {
1826 self.autoindent_mode = Some(AutoindentMode::EachLine);
1827 } else {
1828 self.autoindent_mode = None;
1829 }
1830 }
1831
1832 pub fn read_only(&self, cx: &AppContext) -> bool {
1833 self.read_only || self.buffer.read(cx).read_only()
1834 }
1835
1836 pub fn set_read_only(&mut self, read_only: bool) {
1837 self.read_only = read_only;
1838 }
1839
1840 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1841 self.use_autoclose = autoclose;
1842 }
1843
1844 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1845 self.auto_replace_emoji_shortcode = auto_replace;
1846 }
1847
1848 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1849 self.show_copilot_suggestions = show_copilot_suggestions;
1850 }
1851
1852 pub fn set_use_modal_editing(&mut self, to: bool) {
1853 self.use_modal_editing = to;
1854 }
1855
1856 pub fn use_modal_editing(&self) -> bool {
1857 self.use_modal_editing
1858 }
1859
1860 fn selections_did_change(
1861 &mut self,
1862 local: bool,
1863 old_cursor_position: &Anchor,
1864 cx: &mut ViewContext<Self>,
1865 ) {
1866 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1867 self.buffer.update(cx, |buffer, cx| {
1868 buffer.set_active_selections(
1869 &self.selections.disjoint_anchors(),
1870 self.selections.line_mode,
1871 self.cursor_shape,
1872 cx,
1873 )
1874 });
1875 }
1876
1877 let display_map = self
1878 .display_map
1879 .update(cx, |display_map, cx| display_map.snapshot(cx));
1880 let buffer = &display_map.buffer_snapshot;
1881 self.add_selections_state = None;
1882 self.select_next_state = None;
1883 self.select_prev_state = None;
1884 self.select_larger_syntax_node_stack.clear();
1885 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1886 self.snippet_stack
1887 .invalidate(&self.selections.disjoint_anchors(), buffer);
1888 self.take_rename(false, cx);
1889
1890 let new_cursor_position = self.selections.newest_anchor().head();
1891
1892 self.push_to_nav_history(
1893 *old_cursor_position,
1894 Some(new_cursor_position.to_point(buffer)),
1895 cx,
1896 );
1897
1898 if local {
1899 let new_cursor_position = self.selections.newest_anchor().head();
1900 let mut context_menu = self.context_menu.write();
1901 let completion_menu = match context_menu.as_ref() {
1902 Some(ContextMenu::Completions(menu)) => Some(menu),
1903
1904 _ => {
1905 *context_menu = None;
1906 None
1907 }
1908 };
1909
1910 if let Some(completion_menu) = completion_menu {
1911 let cursor_position = new_cursor_position.to_offset(buffer);
1912 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1913 if kind == Some(CharKind::Word)
1914 && word_range.to_inclusive().contains(&cursor_position)
1915 {
1916 let mut completion_menu = completion_menu.clone();
1917 drop(context_menu);
1918
1919 let query = Self::completion_query(buffer, cursor_position);
1920 cx.spawn(move |this, mut cx| async move {
1921 completion_menu
1922 .filter(query.as_deref(), cx.background_executor().clone())
1923 .await;
1924
1925 this.update(&mut cx, |this, cx| {
1926 let mut context_menu = this.context_menu.write();
1927 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1928 return;
1929 };
1930
1931 if menu.id > completion_menu.id {
1932 return;
1933 }
1934
1935 *context_menu = Some(ContextMenu::Completions(completion_menu));
1936 drop(context_menu);
1937 cx.notify();
1938 })
1939 })
1940 .detach();
1941
1942 self.show_completions(&ShowCompletions, cx);
1943 } else {
1944 drop(context_menu);
1945 self.hide_context_menu(cx);
1946 }
1947 } else {
1948 drop(context_menu);
1949 }
1950
1951 hide_hover(self, cx);
1952
1953 if old_cursor_position.to_display_point(&display_map).row()
1954 != new_cursor_position.to_display_point(&display_map).row()
1955 {
1956 self.available_code_actions.take();
1957 }
1958 self.refresh_code_actions(cx);
1959 self.refresh_document_highlights(cx);
1960 refresh_matching_bracket_highlights(self, cx);
1961 self.discard_copilot_suggestion(cx);
1962 }
1963
1964 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1965 cx.emit(EditorEvent::SelectionsChanged { local });
1966
1967 if self.selections.disjoint_anchors().len() == 1 {
1968 cx.emit(SearchEvent::ActiveMatchChanged)
1969 }
1970
1971 cx.notify();
1972 }
1973
1974 pub fn change_selections<R>(
1975 &mut self,
1976 autoscroll: Option<Autoscroll>,
1977 cx: &mut ViewContext<Self>,
1978 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1979 ) -> R {
1980 let old_cursor_position = self.selections.newest_anchor().head();
1981 self.push_to_selection_history();
1982
1983 let (changed, result) = self.selections.change_with(cx, change);
1984
1985 if changed {
1986 if let Some(autoscroll) = autoscroll {
1987 self.request_autoscroll(autoscroll, cx);
1988 }
1989 self.selections_did_change(true, &old_cursor_position, cx);
1990 }
1991
1992 result
1993 }
1994
1995 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1996 where
1997 I: IntoIterator<Item = (Range<S>, T)>,
1998 S: ToOffset,
1999 T: Into<Arc<str>>,
2000 {
2001 if self.read_only(cx) {
2002 return;
2003 }
2004
2005 self.buffer
2006 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2007 }
2008
2009 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2010 where
2011 I: IntoIterator<Item = (Range<S>, T)>,
2012 S: ToOffset,
2013 T: Into<Arc<str>>,
2014 {
2015 if self.read_only(cx) {
2016 return;
2017 }
2018
2019 self.buffer.update(cx, |buffer, cx| {
2020 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2021 });
2022 }
2023
2024 pub fn edit_with_block_indent<I, S, T>(
2025 &mut self,
2026 edits: I,
2027 original_indent_columns: Vec<u32>,
2028 cx: &mut ViewContext<Self>,
2029 ) where
2030 I: IntoIterator<Item = (Range<S>, T)>,
2031 S: ToOffset,
2032 T: Into<Arc<str>>,
2033 {
2034 if self.read_only(cx) {
2035 return;
2036 }
2037
2038 self.buffer.update(cx, |buffer, cx| {
2039 buffer.edit(
2040 edits,
2041 Some(AutoindentMode::Block {
2042 original_indent_columns,
2043 }),
2044 cx,
2045 )
2046 });
2047 }
2048
2049 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2050 self.hide_context_menu(cx);
2051
2052 match phase {
2053 SelectPhase::Begin {
2054 position,
2055 add,
2056 click_count,
2057 } => self.begin_selection(position, add, click_count, cx),
2058 SelectPhase::BeginColumnar {
2059 position,
2060 goal_column,
2061 } => self.begin_columnar_selection(position, goal_column, cx),
2062 SelectPhase::Extend {
2063 position,
2064 click_count,
2065 } => self.extend_selection(position, click_count, cx),
2066 SelectPhase::Update {
2067 position,
2068 goal_column,
2069 scroll_delta,
2070 } => self.update_selection(position, goal_column, scroll_delta, cx),
2071 SelectPhase::End => self.end_selection(cx),
2072 }
2073 }
2074
2075 fn extend_selection(
2076 &mut self,
2077 position: DisplayPoint,
2078 click_count: usize,
2079 cx: &mut ViewContext<Self>,
2080 ) {
2081 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2082 let tail = self.selections.newest::<usize>(cx).tail();
2083 self.begin_selection(position, false, click_count, cx);
2084
2085 let position = position.to_offset(&display_map, Bias::Left);
2086 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2087
2088 let mut pending_selection = self
2089 .selections
2090 .pending_anchor()
2091 .expect("extend_selection not called with pending selection");
2092 if position >= tail {
2093 pending_selection.start = tail_anchor;
2094 } else {
2095 pending_selection.end = tail_anchor;
2096 pending_selection.reversed = true;
2097 }
2098
2099 let mut pending_mode = self.selections.pending_mode().unwrap();
2100 match &mut pending_mode {
2101 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2102 _ => {}
2103 }
2104
2105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2106 s.set_pending(pending_selection, pending_mode)
2107 });
2108 }
2109
2110 fn begin_selection(
2111 &mut self,
2112 position: DisplayPoint,
2113 add: bool,
2114 click_count: usize,
2115 cx: &mut ViewContext<Self>,
2116 ) {
2117 if !self.focus_handle.is_focused(cx) {
2118 cx.focus(&self.focus_handle);
2119 }
2120
2121 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2122 let buffer = &display_map.buffer_snapshot;
2123 let newest_selection = self.selections.newest_anchor().clone();
2124 let position = display_map.clip_point(position, Bias::Left);
2125
2126 let start;
2127 let end;
2128 let mode;
2129 let auto_scroll;
2130 match click_count {
2131 1 => {
2132 start = buffer.anchor_before(position.to_point(&display_map));
2133 end = start;
2134 mode = SelectMode::Character;
2135 auto_scroll = true;
2136 }
2137 2 => {
2138 let range = movement::surrounding_word(&display_map, position);
2139 start = buffer.anchor_before(range.start.to_point(&display_map));
2140 end = buffer.anchor_before(range.end.to_point(&display_map));
2141 mode = SelectMode::Word(start..end);
2142 auto_scroll = true;
2143 }
2144 3 => {
2145 let position = display_map
2146 .clip_point(position, Bias::Left)
2147 .to_point(&display_map);
2148 let line_start = display_map.prev_line_boundary(position).0;
2149 let next_line_start = buffer.clip_point(
2150 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2151 Bias::Left,
2152 );
2153 start = buffer.anchor_before(line_start);
2154 end = buffer.anchor_before(next_line_start);
2155 mode = SelectMode::Line(start..end);
2156 auto_scroll = true;
2157 }
2158 _ => {
2159 start = buffer.anchor_before(0);
2160 end = buffer.anchor_before(buffer.len());
2161 mode = SelectMode::All;
2162 auto_scroll = false;
2163 }
2164 }
2165
2166 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2167 if !add {
2168 s.clear_disjoint();
2169 } else if click_count > 1 {
2170 s.delete(newest_selection.id)
2171 }
2172
2173 s.set_pending_anchor_range(start..end, mode);
2174 });
2175 }
2176
2177 fn begin_columnar_selection(
2178 &mut self,
2179 position: DisplayPoint,
2180 goal_column: u32,
2181 cx: &mut ViewContext<Self>,
2182 ) {
2183 if !self.focus_handle.is_focused(cx) {
2184 cx.focus(&self.focus_handle);
2185 }
2186
2187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2188 let tail = self.selections.newest::<Point>(cx).tail();
2189 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2190
2191 self.select_columns(
2192 tail.to_display_point(&display_map),
2193 position,
2194 goal_column,
2195 &display_map,
2196 cx,
2197 );
2198 }
2199
2200 fn update_selection(
2201 &mut self,
2202 position: DisplayPoint,
2203 goal_column: u32,
2204 scroll_delta: gpui::Point<f32>,
2205 cx: &mut ViewContext<Self>,
2206 ) {
2207 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2208
2209 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2210 let tail = tail.to_display_point(&display_map);
2211 self.select_columns(tail, position, goal_column, &display_map, cx);
2212 } else if let Some(mut pending) = self.selections.pending_anchor() {
2213 let buffer = self.buffer.read(cx).snapshot(cx);
2214 let head;
2215 let tail;
2216 let mode = self.selections.pending_mode().unwrap();
2217 match &mode {
2218 SelectMode::Character => {
2219 head = position.to_point(&display_map);
2220 tail = pending.tail().to_point(&buffer);
2221 }
2222 SelectMode::Word(original_range) => {
2223 let original_display_range = original_range.start.to_display_point(&display_map)
2224 ..original_range.end.to_display_point(&display_map);
2225 let original_buffer_range = original_display_range.start.to_point(&display_map)
2226 ..original_display_range.end.to_point(&display_map);
2227 if movement::is_inside_word(&display_map, position)
2228 || original_display_range.contains(&position)
2229 {
2230 let word_range = movement::surrounding_word(&display_map, position);
2231 if word_range.start < original_display_range.start {
2232 head = word_range.start.to_point(&display_map);
2233 } else {
2234 head = word_range.end.to_point(&display_map);
2235 }
2236 } else {
2237 head = position.to_point(&display_map);
2238 }
2239
2240 if head <= original_buffer_range.start {
2241 tail = original_buffer_range.end;
2242 } else {
2243 tail = original_buffer_range.start;
2244 }
2245 }
2246 SelectMode::Line(original_range) => {
2247 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2248
2249 let position = display_map
2250 .clip_point(position, Bias::Left)
2251 .to_point(&display_map);
2252 let line_start = display_map.prev_line_boundary(position).0;
2253 let next_line_start = buffer.clip_point(
2254 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2255 Bias::Left,
2256 );
2257
2258 if line_start < original_range.start {
2259 head = line_start
2260 } else {
2261 head = next_line_start
2262 }
2263
2264 if head <= original_range.start {
2265 tail = original_range.end;
2266 } else {
2267 tail = original_range.start;
2268 }
2269 }
2270 SelectMode::All => {
2271 return;
2272 }
2273 };
2274
2275 if head < tail {
2276 pending.start = buffer.anchor_before(head);
2277 pending.end = buffer.anchor_before(tail);
2278 pending.reversed = true;
2279 } else {
2280 pending.start = buffer.anchor_before(tail);
2281 pending.end = buffer.anchor_before(head);
2282 pending.reversed = false;
2283 }
2284
2285 self.change_selections(None, cx, |s| {
2286 s.set_pending(pending, mode);
2287 });
2288 } else {
2289 log::error!("update_selection dispatched with no pending selection");
2290 return;
2291 }
2292
2293 self.apply_scroll_delta(scroll_delta, cx);
2294 cx.notify();
2295 }
2296
2297 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2298 self.columnar_selection_tail.take();
2299 if self.selections.pending_anchor().is_some() {
2300 let selections = self.selections.all::<usize>(cx);
2301 self.change_selections(None, cx, |s| {
2302 s.select(selections);
2303 s.clear_pending();
2304 });
2305 }
2306 }
2307
2308 fn select_columns(
2309 &mut self,
2310 tail: DisplayPoint,
2311 head: DisplayPoint,
2312 goal_column: u32,
2313 display_map: &DisplaySnapshot,
2314 cx: &mut ViewContext<Self>,
2315 ) {
2316 let start_row = cmp::min(tail.row(), head.row());
2317 let end_row = cmp::max(tail.row(), head.row());
2318 let start_column = cmp::min(tail.column(), goal_column);
2319 let end_column = cmp::max(tail.column(), goal_column);
2320 let reversed = start_column < tail.column();
2321
2322 let selection_ranges = (start_row..=end_row)
2323 .filter_map(|row| {
2324 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2325 let start = display_map
2326 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2327 .to_point(display_map);
2328 let end = display_map
2329 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2330 .to_point(display_map);
2331 if reversed {
2332 Some(end..start)
2333 } else {
2334 Some(start..end)
2335 }
2336 } else {
2337 None
2338 }
2339 })
2340 .collect::<Vec<_>>();
2341
2342 self.change_selections(None, cx, |s| {
2343 s.select_ranges(selection_ranges);
2344 });
2345 cx.notify();
2346 }
2347
2348 pub fn has_pending_nonempty_selection(&self) -> bool {
2349 let pending_nonempty_selection = match self.selections.pending_anchor() {
2350 Some(Selection { start, end, .. }) => start != end,
2351 None => false,
2352 };
2353 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2354 }
2355
2356 pub fn has_pending_selection(&self) -> bool {
2357 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2358 }
2359
2360 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2361 if self.dismiss_menus_and_popups(cx) {
2362 return;
2363 }
2364
2365 if self.mode == EditorMode::Full {
2366 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2367 return;
2368 }
2369 }
2370
2371 cx.propagate();
2372 }
2373
2374 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2375 if self.take_rename(false, cx).is_some() {
2376 return true;
2377 }
2378
2379 if hide_hover(self, cx) {
2380 return true;
2381 }
2382
2383 if self.hide_context_menu(cx).is_some() {
2384 return true;
2385 }
2386
2387 if self.discard_copilot_suggestion(cx) {
2388 return true;
2389 }
2390
2391 if self.snippet_stack.pop().is_some() {
2392 return true;
2393 }
2394
2395 if self.mode == EditorMode::Full {
2396 if self.active_diagnostics.is_some() {
2397 self.dismiss_diagnostics(cx);
2398 return true;
2399 }
2400 }
2401
2402 false
2403 }
2404
2405 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2406 let text: Arc<str> = text.into();
2407
2408 if self.read_only(cx) {
2409 return;
2410 }
2411
2412 let selections = self.selections.all_adjusted(cx);
2413 let mut brace_inserted = false;
2414 let mut edits = Vec::new();
2415 let mut new_selections = Vec::with_capacity(selections.len());
2416 let mut new_autoclose_regions = Vec::new();
2417 let snapshot = self.buffer.read(cx).read(cx);
2418
2419 for (selection, autoclose_region) in
2420 self.selections_with_autoclose_regions(selections, &snapshot)
2421 {
2422 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2423 // Determine if the inserted text matches the opening or closing
2424 // bracket of any of this language's bracket pairs.
2425 let mut bracket_pair = None;
2426 let mut is_bracket_pair_start = false;
2427 if !text.is_empty() {
2428 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2429 // and they are removing the character that triggered IME popup.
2430 for (pair, enabled) in scope.brackets() {
2431 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2432 bracket_pair = Some(pair.clone());
2433 is_bracket_pair_start = true;
2434 break;
2435 } else if pair.end.as_str() == text.as_ref() {
2436 bracket_pair = Some(pair.clone());
2437 break;
2438 }
2439 }
2440 }
2441
2442 if let Some(bracket_pair) = bracket_pair {
2443 if selection.is_empty() {
2444 if is_bracket_pair_start {
2445 let prefix_len = bracket_pair.start.len() - text.len();
2446
2447 // If the inserted text is a suffix of an opening bracket and the
2448 // selection is preceded by the rest of the opening bracket, then
2449 // insert the closing bracket.
2450 let following_text_allows_autoclose = snapshot
2451 .chars_at(selection.start)
2452 .next()
2453 .map_or(true, |c| scope.should_autoclose_before(c));
2454 let preceding_text_matches_prefix = prefix_len == 0
2455 || (selection.start.column >= (prefix_len as u32)
2456 && snapshot.contains_str_at(
2457 Point::new(
2458 selection.start.row,
2459 selection.start.column - (prefix_len as u32),
2460 ),
2461 &bracket_pair.start[..prefix_len],
2462 ));
2463 let autoclose = self.use_autoclose
2464 && snapshot.settings_at(selection.start, cx).use_autoclose;
2465 if autoclose
2466 && following_text_allows_autoclose
2467 && preceding_text_matches_prefix
2468 {
2469 let anchor = snapshot.anchor_before(selection.end);
2470 new_selections.push((selection.map(|_| anchor), text.len()));
2471 new_autoclose_regions.push((
2472 anchor,
2473 text.len(),
2474 selection.id,
2475 bracket_pair.clone(),
2476 ));
2477 edits.push((
2478 selection.range(),
2479 format!("{}{}", text, bracket_pair.end).into(),
2480 ));
2481 brace_inserted = true;
2482 continue;
2483 }
2484 }
2485
2486 if let Some(region) = autoclose_region {
2487 // If the selection is followed by an auto-inserted closing bracket,
2488 // then don't insert that closing bracket again; just move the selection
2489 // past the closing bracket.
2490 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2491 && text.as_ref() == region.pair.end.as_str();
2492 if should_skip {
2493 let anchor = snapshot.anchor_after(selection.end);
2494 new_selections
2495 .push((selection.map(|_| anchor), region.pair.end.len()));
2496 continue;
2497 }
2498 }
2499 }
2500 // If an opening bracket is 1 character long and is typed while
2501 // text is selected, then surround that text with the bracket pair.
2502 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2503 edits.push((selection.start..selection.start, text.clone()));
2504 edits.push((
2505 selection.end..selection.end,
2506 bracket_pair.end.as_str().into(),
2507 ));
2508 brace_inserted = true;
2509 new_selections.push((
2510 Selection {
2511 id: selection.id,
2512 start: snapshot.anchor_after(selection.start),
2513 end: snapshot.anchor_before(selection.end),
2514 reversed: selection.reversed,
2515 goal: selection.goal,
2516 },
2517 0,
2518 ));
2519 continue;
2520 }
2521 }
2522 }
2523
2524 if self.auto_replace_emoji_shortcode
2525 && selection.is_empty()
2526 && text.as_ref().ends_with(':')
2527 {
2528 if let Some(possible_emoji_short_code) =
2529 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2530 {
2531 if !possible_emoji_short_code.is_empty() {
2532 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2533 let emoji_shortcode_start = Point::new(
2534 selection.start.row,
2535 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2536 );
2537
2538 // Remove shortcode from buffer
2539 edits.push((
2540 emoji_shortcode_start..selection.start,
2541 "".to_string().into(),
2542 ));
2543 new_selections.push((
2544 Selection {
2545 id: selection.id,
2546 start: snapshot.anchor_after(emoji_shortcode_start),
2547 end: snapshot.anchor_before(selection.start),
2548 reversed: selection.reversed,
2549 goal: selection.goal,
2550 },
2551 0,
2552 ));
2553
2554 // Insert emoji
2555 let selection_start_anchor = snapshot.anchor_after(selection.start);
2556 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2557 edits.push((selection.start..selection.end, emoji.to_string().into()));
2558
2559 continue;
2560 }
2561 }
2562 }
2563 }
2564
2565 // If not handling any auto-close operation, then just replace the selected
2566 // text with the given input and move the selection to the end of the
2567 // newly inserted text.
2568 let anchor = snapshot.anchor_after(selection.end);
2569 new_selections.push((selection.map(|_| anchor), 0));
2570 edits.push((selection.start..selection.end, text.clone()));
2571 }
2572
2573 drop(snapshot);
2574 self.transact(cx, |this, cx| {
2575 this.buffer.update(cx, |buffer, cx| {
2576 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2577 });
2578
2579 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2580 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2581 let snapshot = this.buffer.read(cx).read(cx);
2582 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2583 .zip(new_selection_deltas)
2584 .map(|(selection, delta)| Selection {
2585 id: selection.id,
2586 start: selection.start + delta,
2587 end: selection.end + delta,
2588 reversed: selection.reversed,
2589 goal: SelectionGoal::None,
2590 })
2591 .collect::<Vec<_>>();
2592
2593 let mut i = 0;
2594 for (position, delta, selection_id, pair) in new_autoclose_regions {
2595 let position = position.to_offset(&snapshot) + delta;
2596 let start = snapshot.anchor_before(position);
2597 let end = snapshot.anchor_after(position);
2598 while let Some(existing_state) = this.autoclose_regions.get(i) {
2599 match existing_state.range.start.cmp(&start, &snapshot) {
2600 Ordering::Less => i += 1,
2601 Ordering::Greater => break,
2602 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2603 Ordering::Less => i += 1,
2604 Ordering::Equal => break,
2605 Ordering::Greater => break,
2606 },
2607 }
2608 }
2609 this.autoclose_regions.insert(
2610 i,
2611 AutocloseRegion {
2612 selection_id,
2613 range: start..end,
2614 pair,
2615 },
2616 );
2617 }
2618
2619 drop(snapshot);
2620 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2621 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2622
2623 if brace_inserted {
2624 // If we inserted a brace while composing text (i.e. typing `"` on a
2625 // Brazilian keyboard), exit the composing state because most likely
2626 // the user wanted to surround the selection.
2627 this.unmark_text(cx);
2628 } else if EditorSettings::get_global(cx).use_on_type_format {
2629 if let Some(on_type_format_task) =
2630 this.trigger_on_type_formatting(text.to_string(), cx)
2631 {
2632 on_type_format_task.detach_and_log_err(cx);
2633 }
2634 }
2635
2636 if had_active_copilot_suggestion {
2637 this.refresh_copilot_suggestions(true, cx);
2638 if !this.has_active_copilot_suggestion(cx) {
2639 this.trigger_completion_on_input(&text, cx);
2640 }
2641 } else {
2642 this.trigger_completion_on_input(&text, cx);
2643 this.refresh_copilot_suggestions(true, cx);
2644 }
2645 });
2646 }
2647
2648 fn find_possible_emoji_shortcode_at_position(
2649 snapshot: &MultiBufferSnapshot,
2650 position: Point,
2651 ) -> Option<String> {
2652 let mut chars = Vec::new();
2653 let mut found_colon = false;
2654 for char in snapshot.reversed_chars_at(position).take(100) {
2655 // Found a possible emoji shortcode in the middle of the buffer
2656 if found_colon && char.is_whitespace() {
2657 chars.reverse();
2658 return Some(chars.iter().collect());
2659 }
2660 if char.is_whitespace() || !char.is_ascii() {
2661 return None;
2662 }
2663 if char == ':' {
2664 found_colon = true;
2665 } else {
2666 chars.push(char);
2667 }
2668 }
2669 // Found a possible emoji shortcode at the beginning of the buffer
2670 chars.reverse();
2671 Some(chars.iter().collect())
2672 }
2673
2674 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2675 self.transact(cx, |this, cx| {
2676 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2677 let selections = this.selections.all::<usize>(cx);
2678 let multi_buffer = this.buffer.read(cx);
2679 let buffer = multi_buffer.snapshot(cx);
2680 selections
2681 .iter()
2682 .map(|selection| {
2683 let start_point = selection.start.to_point(&buffer);
2684 let mut indent = buffer.indent_size_for_line(start_point.row);
2685 indent.len = cmp::min(indent.len, start_point.column);
2686 let start = selection.start;
2687 let end = selection.end;
2688 let is_cursor = start == end;
2689 let language_scope = buffer.language_scope_at(start);
2690 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2691 &language_scope
2692 {
2693 let leading_whitespace_len = buffer
2694 .reversed_chars_at(start)
2695 .take_while(|c| c.is_whitespace() && *c != '\n')
2696 .map(|c| c.len_utf8())
2697 .sum::<usize>();
2698
2699 let trailing_whitespace_len = buffer
2700 .chars_at(end)
2701 .take_while(|c| c.is_whitespace() && *c != '\n')
2702 .map(|c| c.len_utf8())
2703 .sum::<usize>();
2704
2705 let insert_extra_newline =
2706 language.brackets().any(|(pair, enabled)| {
2707 let pair_start = pair.start.trim_end();
2708 let pair_end = pair.end.trim_start();
2709
2710 enabled
2711 && pair.newline
2712 && buffer.contains_str_at(
2713 end + trailing_whitespace_len,
2714 pair_end,
2715 )
2716 && buffer.contains_str_at(
2717 (start - leading_whitespace_len)
2718 .saturating_sub(pair_start.len()),
2719 pair_start,
2720 )
2721 });
2722 // Comment extension on newline is allowed only for cursor selections
2723 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2724 let is_comment_extension_enabled =
2725 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2726 is_cursor && is_comment_extension_enabled
2727 });
2728 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2729 let max_len_of_delimiter =
2730 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2731 let (snapshot, range) =
2732 buffer.buffer_line_for_row(start_point.row)?;
2733
2734 let mut index_of_first_non_whitespace = 0;
2735 let comment_candidate = snapshot
2736 .chars_for_range(range)
2737 .skip_while(|c| {
2738 let should_skip = c.is_whitespace();
2739 if should_skip {
2740 index_of_first_non_whitespace += 1;
2741 }
2742 should_skip
2743 })
2744 .take(max_len_of_delimiter)
2745 .collect::<String>();
2746 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2747 comment_candidate.starts_with(comment_prefix.as_ref())
2748 })?;
2749 let cursor_is_placed_after_comment_marker =
2750 index_of_first_non_whitespace + comment_prefix.len()
2751 <= start_point.column as usize;
2752 if cursor_is_placed_after_comment_marker {
2753 Some(comment_prefix.clone())
2754 } else {
2755 None
2756 }
2757 };
2758 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2759 get_comment_delimiter(delimiters)
2760 } else {
2761 None
2762 };
2763 (comment_delimiter, insert_extra_newline)
2764 } else {
2765 (None, false)
2766 };
2767
2768 let capacity_for_delimiter = comment_delimiter
2769 .as_deref()
2770 .map(str::len)
2771 .unwrap_or_default();
2772 let mut new_text =
2773 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2774 new_text.push_str("\n");
2775 new_text.extend(indent.chars());
2776 if let Some(delimiter) = &comment_delimiter {
2777 new_text.push_str(&delimiter);
2778 }
2779 if insert_extra_newline {
2780 new_text = new_text.repeat(2);
2781 }
2782
2783 let anchor = buffer.anchor_after(end);
2784 let new_selection = selection.map(|_| anchor);
2785 (
2786 (start..end, new_text),
2787 (insert_extra_newline, new_selection),
2788 )
2789 })
2790 .unzip()
2791 };
2792
2793 this.edit_with_autoindent(edits, cx);
2794 let buffer = this.buffer.read(cx).snapshot(cx);
2795 let new_selections = selection_fixup_info
2796 .into_iter()
2797 .map(|(extra_newline_inserted, new_selection)| {
2798 let mut cursor = new_selection.end.to_point(&buffer);
2799 if extra_newline_inserted {
2800 cursor.row -= 1;
2801 cursor.column = buffer.line_len(cursor.row);
2802 }
2803 new_selection.map(|_| cursor)
2804 })
2805 .collect();
2806
2807 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2808 this.refresh_copilot_suggestions(true, cx);
2809 });
2810 }
2811
2812 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2813 let buffer = self.buffer.read(cx);
2814 let snapshot = buffer.snapshot(cx);
2815
2816 let mut edits = Vec::new();
2817 let mut rows = Vec::new();
2818
2819 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2820 let cursor = selection.head();
2821 let row = cursor.row;
2822
2823 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2824
2825 let newline = "\n".to_string();
2826 edits.push((start_of_line..start_of_line, newline));
2827
2828 rows.push(row + rows_inserted as u32);
2829 }
2830
2831 self.transact(cx, |editor, cx| {
2832 editor.edit(edits, cx);
2833
2834 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2835 let mut index = 0;
2836 s.move_cursors_with(|map, _, _| {
2837 let row = rows[index];
2838 index += 1;
2839
2840 let point = Point::new(row, 0);
2841 let boundary = map.next_line_boundary(point).1;
2842 let clipped = map.clip_point(boundary, Bias::Left);
2843
2844 (clipped, SelectionGoal::None)
2845 });
2846 });
2847
2848 let mut indent_edits = Vec::new();
2849 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2850 for row in rows {
2851 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2852 for (row, indent) in indents {
2853 if indent.len == 0 {
2854 continue;
2855 }
2856
2857 let text = match indent.kind {
2858 IndentKind::Space => " ".repeat(indent.len as usize),
2859 IndentKind::Tab => "\t".repeat(indent.len as usize),
2860 };
2861 let point = Point::new(row, 0);
2862 indent_edits.push((point..point, text));
2863 }
2864 }
2865 editor.edit(indent_edits, cx);
2866 });
2867 }
2868
2869 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2870 let buffer = self.buffer.read(cx);
2871 let snapshot = buffer.snapshot(cx);
2872
2873 let mut edits = Vec::new();
2874 let mut rows = Vec::new();
2875 let mut rows_inserted = 0;
2876
2877 for selection in self.selections.all_adjusted(cx) {
2878 let cursor = selection.head();
2879 let row = cursor.row;
2880
2881 let point = Point::new(row + 1, 0);
2882 let start_of_line = snapshot.clip_point(point, Bias::Left);
2883
2884 let newline = "\n".to_string();
2885 edits.push((start_of_line..start_of_line, newline));
2886
2887 rows_inserted += 1;
2888 rows.push(row + rows_inserted);
2889 }
2890
2891 self.transact(cx, |editor, cx| {
2892 editor.edit(edits, cx);
2893
2894 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2895 let mut index = 0;
2896 s.move_cursors_with(|map, _, _| {
2897 let row = rows[index];
2898 index += 1;
2899
2900 let point = Point::new(row, 0);
2901 let boundary = map.next_line_boundary(point).1;
2902 let clipped = map.clip_point(boundary, Bias::Left);
2903
2904 (clipped, SelectionGoal::None)
2905 });
2906 });
2907
2908 let mut indent_edits = Vec::new();
2909 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2910 for row in rows {
2911 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2912 for (row, indent) in indents {
2913 if indent.len == 0 {
2914 continue;
2915 }
2916
2917 let text = match indent.kind {
2918 IndentKind::Space => " ".repeat(indent.len as usize),
2919 IndentKind::Tab => "\t".repeat(indent.len as usize),
2920 };
2921 let point = Point::new(row, 0);
2922 indent_edits.push((point..point, text));
2923 }
2924 }
2925 editor.edit(indent_edits, cx);
2926 });
2927 }
2928
2929 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2930 self.insert_with_autoindent_mode(
2931 text,
2932 Some(AutoindentMode::Block {
2933 original_indent_columns: Vec::new(),
2934 }),
2935 cx,
2936 );
2937 }
2938
2939 fn insert_with_autoindent_mode(
2940 &mut self,
2941 text: &str,
2942 autoindent_mode: Option<AutoindentMode>,
2943 cx: &mut ViewContext<Self>,
2944 ) {
2945 if self.read_only(cx) {
2946 return;
2947 }
2948
2949 let text: Arc<str> = text.into();
2950 self.transact(cx, |this, cx| {
2951 let old_selections = this.selections.all_adjusted(cx);
2952 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2953 let anchors = {
2954 let snapshot = buffer.read(cx);
2955 old_selections
2956 .iter()
2957 .map(|s| {
2958 let anchor = snapshot.anchor_after(s.head());
2959 s.map(|_| anchor)
2960 })
2961 .collect::<Vec<_>>()
2962 };
2963 buffer.edit(
2964 old_selections
2965 .iter()
2966 .map(|s| (s.start..s.end, text.clone())),
2967 autoindent_mode,
2968 cx,
2969 );
2970 anchors
2971 });
2972
2973 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2974 s.select_anchors(selection_anchors);
2975 })
2976 });
2977 }
2978
2979 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2980 if !EditorSettings::get_global(cx).show_completions_on_input {
2981 return;
2982 }
2983
2984 let selection = self.selections.newest_anchor();
2985 if self
2986 .buffer
2987 .read(cx)
2988 .is_completion_trigger(selection.head(), text, cx)
2989 {
2990 self.show_completions(&ShowCompletions, cx);
2991 } else {
2992 self.hide_context_menu(cx);
2993 }
2994 }
2995
2996 /// If any empty selections is touching the start of its innermost containing autoclose
2997 /// region, expand it to select the brackets.
2998 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2999 let selections = self.selections.all::<usize>(cx);
3000 let buffer = self.buffer.read(cx).read(cx);
3001 let mut new_selections = Vec::new();
3002 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
3003 if let (Some(region), true) = (region, selection.is_empty()) {
3004 let mut range = region.range.to_offset(&buffer);
3005 if selection.start == range.start {
3006 if range.start >= region.pair.start.len() {
3007 range.start -= region.pair.start.len();
3008 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3009 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3010 range.end += region.pair.end.len();
3011 selection.start = range.start;
3012 selection.end = range.end;
3013 }
3014 }
3015 }
3016 }
3017 }
3018 new_selections.push(selection);
3019 }
3020
3021 drop(buffer);
3022 self.change_selections(None, cx, |selections| selections.select(new_selections));
3023 }
3024
3025 /// Iterate the given selections, and for each one, find the smallest surrounding
3026 /// autoclose region. This uses the ordering of the selections and the autoclose
3027 /// regions to avoid repeated comparisons.
3028 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3029 &'a self,
3030 selections: impl IntoIterator<Item = Selection<D>>,
3031 buffer: &'a MultiBufferSnapshot,
3032 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3033 let mut i = 0;
3034 let mut regions = self.autoclose_regions.as_slice();
3035 selections.into_iter().map(move |selection| {
3036 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3037
3038 let mut enclosing = None;
3039 while let Some(pair_state) = regions.get(i) {
3040 if pair_state.range.end.to_offset(buffer) < range.start {
3041 regions = ®ions[i + 1..];
3042 i = 0;
3043 } else if pair_state.range.start.to_offset(buffer) > range.end {
3044 break;
3045 } else {
3046 if pair_state.selection_id == selection.id {
3047 enclosing = Some(pair_state);
3048 }
3049 i += 1;
3050 }
3051 }
3052
3053 (selection.clone(), enclosing)
3054 })
3055 }
3056
3057 /// Remove any autoclose regions that no longer contain their selection.
3058 fn invalidate_autoclose_regions(
3059 &mut self,
3060 mut selections: &[Selection<Anchor>],
3061 buffer: &MultiBufferSnapshot,
3062 ) {
3063 self.autoclose_regions.retain(|state| {
3064 let mut i = 0;
3065 while let Some(selection) = selections.get(i) {
3066 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3067 selections = &selections[1..];
3068 continue;
3069 }
3070 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3071 break;
3072 }
3073 if selection.id == state.selection_id {
3074 return true;
3075 } else {
3076 i += 1;
3077 }
3078 }
3079 false
3080 });
3081 }
3082
3083 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3084 let offset = position.to_offset(buffer);
3085 let (word_range, kind) = buffer.surrounding_word(offset);
3086 if offset > word_range.start && kind == Some(CharKind::Word) {
3087 Some(
3088 buffer
3089 .text_for_range(word_range.start..offset)
3090 .collect::<String>(),
3091 )
3092 } else {
3093 None
3094 }
3095 }
3096
3097 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3098 self.refresh_inlay_hints(
3099 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3100 cx,
3101 );
3102 }
3103
3104 pub fn inlay_hints_enabled(&self) -> bool {
3105 self.inlay_hint_cache.enabled
3106 }
3107
3108 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3109 if self.project.is_none() || self.mode != EditorMode::Full {
3110 return;
3111 }
3112
3113 let reason_description = reason.description();
3114 let ignore_debounce = matches!(
3115 reason,
3116 InlayHintRefreshReason::SettingsChange(_)
3117 | InlayHintRefreshReason::Toggle(_)
3118 | InlayHintRefreshReason::ExcerptsRemoved(_)
3119 );
3120 let (invalidate_cache, required_languages) = match reason {
3121 InlayHintRefreshReason::Toggle(enabled) => {
3122 self.inlay_hint_cache.enabled = enabled;
3123 if enabled {
3124 (InvalidationStrategy::RefreshRequested, None)
3125 } else {
3126 self.inlay_hint_cache.clear();
3127 self.splice_inlays(
3128 self.visible_inlay_hints(cx)
3129 .iter()
3130 .map(|inlay| inlay.id)
3131 .collect(),
3132 Vec::new(),
3133 cx,
3134 );
3135 return;
3136 }
3137 }
3138 InlayHintRefreshReason::SettingsChange(new_settings) => {
3139 match self.inlay_hint_cache.update_settings(
3140 &self.buffer,
3141 new_settings,
3142 self.visible_inlay_hints(cx),
3143 cx,
3144 ) {
3145 ControlFlow::Break(Some(InlaySplice {
3146 to_remove,
3147 to_insert,
3148 })) => {
3149 self.splice_inlays(to_remove, to_insert, cx);
3150 return;
3151 }
3152 ControlFlow::Break(None) => return,
3153 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3154 }
3155 }
3156 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3157 if let Some(InlaySplice {
3158 to_remove,
3159 to_insert,
3160 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3161 {
3162 self.splice_inlays(to_remove, to_insert, cx);
3163 }
3164 return;
3165 }
3166 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3167 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3168 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3169 }
3170 InlayHintRefreshReason::RefreshRequested => {
3171 (InvalidationStrategy::RefreshRequested, None)
3172 }
3173 };
3174
3175 if let Some(InlaySplice {
3176 to_remove,
3177 to_insert,
3178 }) = self.inlay_hint_cache.spawn_hint_refresh(
3179 reason_description,
3180 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3181 invalidate_cache,
3182 ignore_debounce,
3183 cx,
3184 ) {
3185 self.splice_inlays(to_remove, to_insert, cx);
3186 }
3187 }
3188
3189 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3190 self.display_map
3191 .read(cx)
3192 .current_inlays()
3193 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3194 .cloned()
3195 .collect()
3196 }
3197
3198 pub fn excerpts_for_inlay_hints_query(
3199 &self,
3200 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3201 cx: &mut ViewContext<Editor>,
3202 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3203 let Some(project) = self.project.as_ref() else {
3204 return HashMap::default();
3205 };
3206 let project = project.read(cx);
3207 let multi_buffer = self.buffer().read(cx);
3208 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3209 let multi_buffer_visible_start = self
3210 .scroll_manager
3211 .anchor()
3212 .anchor
3213 .to_point(&multi_buffer_snapshot);
3214 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3215 multi_buffer_visible_start
3216 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3217 Bias::Left,
3218 );
3219 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3220 multi_buffer
3221 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3222 .into_iter()
3223 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3224 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3225 let buffer = buffer_handle.read(cx);
3226 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3227 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3228 let worktree_entry = buffer_worktree
3229 .read(cx)
3230 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3231 if worktree_entry.is_ignored {
3232 return None;
3233 }
3234
3235 let language = buffer.language()?;
3236 if let Some(restrict_to_languages) = restrict_to_languages {
3237 if !restrict_to_languages.contains(language) {
3238 return None;
3239 }
3240 }
3241 Some((
3242 excerpt_id,
3243 (
3244 buffer_handle,
3245 buffer.version().clone(),
3246 excerpt_visible_range,
3247 ),
3248 ))
3249 })
3250 .collect()
3251 }
3252
3253 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3254 TextLayoutDetails {
3255 text_system: cx.text_system().clone(),
3256 editor_style: self.style.clone().unwrap(),
3257 rem_size: cx.rem_size(),
3258 scroll_anchor: self.scroll_manager.anchor(),
3259 visible_rows: self.visible_line_count(),
3260 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3261 }
3262 }
3263
3264 fn splice_inlays(
3265 &self,
3266 to_remove: Vec<InlayId>,
3267 to_insert: Vec<Inlay>,
3268 cx: &mut ViewContext<Self>,
3269 ) {
3270 self.display_map.update(cx, |display_map, cx| {
3271 display_map.splice_inlays(to_remove, to_insert, cx);
3272 });
3273 cx.notify();
3274 }
3275
3276 fn trigger_on_type_formatting(
3277 &self,
3278 input: String,
3279 cx: &mut ViewContext<Self>,
3280 ) -> Option<Task<Result<()>>> {
3281 if input.len() != 1 {
3282 return None;
3283 }
3284
3285 let project = self.project.as_ref()?;
3286 let position = self.selections.newest_anchor().head();
3287 let (buffer, buffer_position) = self
3288 .buffer
3289 .read(cx)
3290 .text_anchor_for_position(position, cx)?;
3291
3292 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3293 // hence we do LSP request & edit on host side only — add formats to host's history.
3294 let push_to_lsp_host_history = true;
3295 // If this is not the host, append its history with new edits.
3296 let push_to_client_history = project.read(cx).is_remote();
3297
3298 let on_type_formatting = project.update(cx, |project, cx| {
3299 project.on_type_format(
3300 buffer.clone(),
3301 buffer_position,
3302 input,
3303 push_to_lsp_host_history,
3304 cx,
3305 )
3306 });
3307 Some(cx.spawn(|editor, mut cx| async move {
3308 if let Some(transaction) = on_type_formatting.await? {
3309 if push_to_client_history {
3310 buffer
3311 .update(&mut cx, |buffer, _| {
3312 buffer.push_transaction(transaction, Instant::now());
3313 })
3314 .ok();
3315 }
3316 editor.update(&mut cx, |editor, cx| {
3317 editor.refresh_document_highlights(cx);
3318 })?;
3319 }
3320 Ok(())
3321 }))
3322 }
3323
3324 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3325 if self.pending_rename.is_some() {
3326 return;
3327 }
3328
3329 let Some(provider) = self.completion_provider.as_ref() else {
3330 return;
3331 };
3332
3333 let position = self.selections.newest_anchor().head();
3334 let (buffer, buffer_position) =
3335 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3336 output
3337 } else {
3338 return;
3339 };
3340
3341 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3342 let completions = provider.completions(&buffer, buffer_position, cx);
3343
3344 let id = post_inc(&mut self.next_completion_id);
3345 let task = cx.spawn(|this, mut cx| {
3346 async move {
3347 let completions = completions.await.log_err();
3348 let menu = if let Some(completions) = completions {
3349 let mut menu = CompletionsMenu {
3350 id,
3351 initial_position: position,
3352 match_candidates: completions
3353 .iter()
3354 .enumerate()
3355 .map(|(id, completion)| {
3356 StringMatchCandidate::new(
3357 id,
3358 completion.label.text[completion.label.filter_range.clone()]
3359 .into(),
3360 )
3361 })
3362 .collect(),
3363 buffer,
3364 completions: Arc::new(RwLock::new(completions.into())),
3365 matches: Vec::new().into(),
3366 selected_item: 0,
3367 scroll_handle: UniformListScrollHandle::new(),
3368 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3369 DebouncedDelay::new(),
3370 )),
3371 };
3372 menu.filter(query.as_deref(), cx.background_executor().clone())
3373 .await;
3374
3375 if menu.matches.is_empty() {
3376 None
3377 } else {
3378 this.update(&mut cx, |editor, cx| {
3379 let completions = menu.completions.clone();
3380 let matches = menu.matches.clone();
3381
3382 let delay_ms = EditorSettings::get_global(cx)
3383 .completion_documentation_secondary_query_debounce;
3384 let delay = Duration::from_millis(delay_ms);
3385
3386 editor
3387 .completion_documentation_pre_resolve_debounce
3388 .fire_new(delay, cx, |editor, cx| {
3389 CompletionsMenu::pre_resolve_completion_documentation(
3390 completions,
3391 matches,
3392 editor,
3393 cx,
3394 )
3395 });
3396 })
3397 .ok();
3398 Some(menu)
3399 }
3400 } else {
3401 None
3402 };
3403
3404 this.update(&mut cx, |this, cx| {
3405 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3406
3407 let mut context_menu = this.context_menu.write();
3408 match context_menu.as_ref() {
3409 None => {}
3410
3411 Some(ContextMenu::Completions(prev_menu)) => {
3412 if prev_menu.id > id {
3413 return;
3414 }
3415 }
3416
3417 _ => return,
3418 }
3419
3420 if this.focus_handle.is_focused(cx) && menu.is_some() {
3421 let menu = menu.unwrap();
3422 *context_menu = Some(ContextMenu::Completions(menu));
3423 drop(context_menu);
3424 this.discard_copilot_suggestion(cx);
3425 cx.notify();
3426 } else if this.completion_tasks.len() <= 1 {
3427 // If there are no more completion tasks and the last menu was
3428 // empty, we should hide it. If it was already hidden, we should
3429 // also show the copilot suggestion when available.
3430 drop(context_menu);
3431 if this.hide_context_menu(cx).is_none() {
3432 this.update_visible_copilot_suggestion(cx);
3433 }
3434 }
3435 })?;
3436
3437 Ok::<_, anyhow::Error>(())
3438 }
3439 .log_err()
3440 });
3441
3442 self.completion_tasks.push((id, task));
3443 }
3444
3445 pub fn confirm_completion(
3446 &mut self,
3447 action: &ConfirmCompletion,
3448 cx: &mut ViewContext<Self>,
3449 ) -> Option<Task<Result<()>>> {
3450 use language::ToOffset as _;
3451
3452 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3453 menu
3454 } else {
3455 return None;
3456 };
3457
3458 let mat = completions_menu
3459 .matches
3460 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3461 let buffer_handle = completions_menu.buffer;
3462 let completions = completions_menu.completions.read();
3463 let completion = completions.get(mat.candidate_id)?;
3464 cx.stop_propagation();
3465
3466 let snippet;
3467 let text;
3468 if completion.is_snippet() {
3469 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3470 text = snippet.as_ref().unwrap().text.clone();
3471 } else {
3472 snippet = None;
3473 text = completion.new_text.clone();
3474 };
3475 let selections = self.selections.all::<usize>(cx);
3476 let buffer = buffer_handle.read(cx);
3477 let old_range = completion.old_range.to_offset(buffer);
3478 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3479
3480 let newest_selection = self.selections.newest_anchor();
3481 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3482 return None;
3483 }
3484
3485 let lookbehind = newest_selection
3486 .start
3487 .text_anchor
3488 .to_offset(buffer)
3489 .saturating_sub(old_range.start);
3490 let lookahead = old_range
3491 .end
3492 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3493 let mut common_prefix_len = old_text
3494 .bytes()
3495 .zip(text.bytes())
3496 .take_while(|(a, b)| a == b)
3497 .count();
3498
3499 let snapshot = self.buffer.read(cx).snapshot(cx);
3500 let mut range_to_replace: Option<Range<isize>> = None;
3501 let mut ranges = Vec::new();
3502 for selection in &selections {
3503 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3504 let start = selection.start.saturating_sub(lookbehind);
3505 let end = selection.end + lookahead;
3506 if selection.id == newest_selection.id {
3507 range_to_replace = Some(
3508 ((start + common_prefix_len) as isize - selection.start as isize)
3509 ..(end as isize - selection.start as isize),
3510 );
3511 }
3512 ranges.push(start + common_prefix_len..end);
3513 } else {
3514 common_prefix_len = 0;
3515 ranges.clear();
3516 ranges.extend(selections.iter().map(|s| {
3517 if s.id == newest_selection.id {
3518 range_to_replace = Some(
3519 old_range.start.to_offset_utf16(&snapshot).0 as isize
3520 - selection.start as isize
3521 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3522 - selection.start as isize,
3523 );
3524 old_range.clone()
3525 } else {
3526 s.start..s.end
3527 }
3528 }));
3529 break;
3530 }
3531 }
3532 let text = &text[common_prefix_len..];
3533
3534 cx.emit(EditorEvent::InputHandled {
3535 utf16_range_to_replace: range_to_replace,
3536 text: text.into(),
3537 });
3538
3539 self.transact(cx, |this, cx| {
3540 if let Some(mut snippet) = snippet {
3541 snippet.text = text.to_string();
3542 for tabstop in snippet.tabstops.iter_mut().flatten() {
3543 tabstop.start -= common_prefix_len as isize;
3544 tabstop.end -= common_prefix_len as isize;
3545 }
3546
3547 this.insert_snippet(&ranges, snippet, cx).log_err();
3548 } else {
3549 this.buffer.update(cx, |buffer, cx| {
3550 buffer.edit(
3551 ranges.iter().map(|range| (range.clone(), text)),
3552 this.autoindent_mode.clone(),
3553 cx,
3554 );
3555 });
3556 }
3557
3558 this.refresh_copilot_suggestions(true, cx);
3559 });
3560
3561 let provider = self.completion_provider.as_ref()?;
3562 let apply_edits = provider.apply_additional_edits_for_completion(
3563 buffer_handle,
3564 completion.clone(),
3565 true,
3566 cx,
3567 );
3568 Some(cx.foreground_executor().spawn(async move {
3569 apply_edits.await?;
3570 Ok(())
3571 }))
3572 }
3573
3574 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3575 let mut context_menu = self.context_menu.write();
3576 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3577 *context_menu = None;
3578 cx.notify();
3579 return;
3580 }
3581 drop(context_menu);
3582
3583 let deployed_from_indicator = action.deployed_from_indicator;
3584 let mut task = self.code_actions_task.take();
3585 cx.spawn(|this, mut cx| async move {
3586 while let Some(prev_task) = task {
3587 prev_task.await;
3588 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3589 }
3590
3591 this.update(&mut cx, |this, cx| {
3592 if this.focus_handle.is_focused(cx) {
3593 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3594 this.completion_tasks.clear();
3595 this.discard_copilot_suggestion(cx);
3596 *this.context_menu.write() =
3597 Some(ContextMenu::CodeActions(CodeActionsMenu {
3598 buffer,
3599 actions,
3600 selected_item: Default::default(),
3601 scroll_handle: UniformListScrollHandle::default(),
3602 deployed_from_indicator,
3603 }));
3604 cx.notify();
3605 }
3606 }
3607 })?;
3608
3609 Ok::<_, anyhow::Error>(())
3610 })
3611 .detach_and_log_err(cx);
3612 }
3613
3614 pub fn confirm_code_action(
3615 &mut self,
3616 action: &ConfirmCodeAction,
3617 cx: &mut ViewContext<Self>,
3618 ) -> Option<Task<Result<()>>> {
3619 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3620 menu
3621 } else {
3622 return None;
3623 };
3624 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3625 let action = actions_menu.actions.get(action_ix)?.clone();
3626 let title = action.lsp_action.title.clone();
3627 let buffer = actions_menu.buffer;
3628 let workspace = self.workspace()?;
3629
3630 let apply_code_actions = workspace
3631 .read(cx)
3632 .project()
3633 .clone()
3634 .update(cx, |project, cx| {
3635 project.apply_code_action(buffer, action, true, cx)
3636 });
3637 let workspace = workspace.downgrade();
3638 Some(cx.spawn(|editor, cx| async move {
3639 let project_transaction = apply_code_actions.await?;
3640 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3641 }))
3642 }
3643
3644 async fn open_project_transaction(
3645 this: &WeakView<Editor>,
3646 workspace: WeakView<Workspace>,
3647 transaction: ProjectTransaction,
3648 title: String,
3649 mut cx: AsyncWindowContext,
3650 ) -> Result<()> {
3651 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3652
3653 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3654 cx.update(|cx| {
3655 entries.sort_unstable_by_key(|(buffer, _)| {
3656 buffer.read(cx).file().map(|f| f.path().clone())
3657 });
3658 })?;
3659
3660 // If the project transaction's edits are all contained within this editor, then
3661 // avoid opening a new editor to display them.
3662
3663 if let Some((buffer, transaction)) = entries.first() {
3664 if entries.len() == 1 {
3665 let excerpt = this.update(&mut cx, |editor, cx| {
3666 editor
3667 .buffer()
3668 .read(cx)
3669 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3670 })?;
3671 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3672 if excerpted_buffer == *buffer {
3673 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3674 let excerpt_range = excerpt_range.to_offset(buffer);
3675 buffer
3676 .edited_ranges_for_transaction::<usize>(transaction)
3677 .all(|range| {
3678 excerpt_range.start <= range.start
3679 && excerpt_range.end >= range.end
3680 })
3681 })?;
3682
3683 if all_edits_within_excerpt {
3684 return Ok(());
3685 }
3686 }
3687 }
3688 }
3689 } else {
3690 return Ok(());
3691 }
3692
3693 let mut ranges_to_highlight = Vec::new();
3694 let excerpt_buffer = cx.new_model(|cx| {
3695 let mut multibuffer =
3696 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3697 for (buffer_handle, transaction) in &entries {
3698 let buffer = buffer_handle.read(cx);
3699 ranges_to_highlight.extend(
3700 multibuffer.push_excerpts_with_context_lines(
3701 buffer_handle.clone(),
3702 buffer
3703 .edited_ranges_for_transaction::<usize>(transaction)
3704 .collect(),
3705 1,
3706 cx,
3707 ),
3708 );
3709 }
3710 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3711 multibuffer
3712 })?;
3713
3714 workspace.update(&mut cx, |workspace, cx| {
3715 let project = workspace.project().clone();
3716 let editor =
3717 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3718 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3719 editor.update(cx, |editor, cx| {
3720 editor.highlight_background::<Self>(
3721 ranges_to_highlight,
3722 |theme| theme.editor_highlighted_line_background,
3723 cx,
3724 );
3725 });
3726 })?;
3727
3728 Ok(())
3729 }
3730
3731 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3732 let project = self.project.clone()?;
3733 let buffer = self.buffer.read(cx);
3734 let newest_selection = self.selections.newest_anchor().clone();
3735 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3736 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3737 if start_buffer != end_buffer {
3738 return None;
3739 }
3740
3741 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3742 cx.background_executor()
3743 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3744 .await;
3745
3746 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3747 project.code_actions(&start_buffer, start..end, cx)
3748 }) {
3749 code_actions.await.log_err()
3750 } else {
3751 None
3752 };
3753
3754 this.update(&mut cx, |this, cx| {
3755 this.available_code_actions = actions.and_then(|actions| {
3756 if actions.is_empty() {
3757 None
3758 } else {
3759 Some((start_buffer, actions.into()))
3760 }
3761 });
3762 cx.notify();
3763 })
3764 .log_err();
3765 }));
3766 None
3767 }
3768
3769 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3770 if self.pending_rename.is_some() {
3771 return None;
3772 }
3773
3774 let project = self.project.clone()?;
3775 let buffer = self.buffer.read(cx);
3776 let newest_selection = self.selections.newest_anchor().clone();
3777 let cursor_position = newest_selection.head();
3778 let (cursor_buffer, cursor_buffer_position) =
3779 buffer.text_anchor_for_position(cursor_position, cx)?;
3780 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3781 if cursor_buffer != tail_buffer {
3782 return None;
3783 }
3784
3785 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3786 cx.background_executor()
3787 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3788 .await;
3789
3790 let highlights = if let Some(highlights) = project
3791 .update(&mut cx, |project, cx| {
3792 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3793 })
3794 .log_err()
3795 {
3796 highlights.await.log_err()
3797 } else {
3798 None
3799 };
3800
3801 if let Some(highlights) = highlights {
3802 this.update(&mut cx, |this, cx| {
3803 if this.pending_rename.is_some() {
3804 return;
3805 }
3806
3807 let buffer_id = cursor_position.buffer_id;
3808 let buffer = this.buffer.read(cx);
3809 if !buffer
3810 .text_anchor_for_position(cursor_position, cx)
3811 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3812 {
3813 return;
3814 }
3815
3816 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3817 let mut write_ranges = Vec::new();
3818 let mut read_ranges = Vec::new();
3819 for highlight in highlights {
3820 for (excerpt_id, excerpt_range) in
3821 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3822 {
3823 let start = highlight
3824 .range
3825 .start
3826 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3827 let end = highlight
3828 .range
3829 .end
3830 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3831 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3832 continue;
3833 }
3834
3835 let range = Anchor {
3836 buffer_id,
3837 excerpt_id: excerpt_id,
3838 text_anchor: start,
3839 }..Anchor {
3840 buffer_id,
3841 excerpt_id,
3842 text_anchor: end,
3843 };
3844 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3845 write_ranges.push(range);
3846 } else {
3847 read_ranges.push(range);
3848 }
3849 }
3850 }
3851
3852 this.highlight_background::<DocumentHighlightRead>(
3853 read_ranges,
3854 |theme| theme.editor_document_highlight_read_background,
3855 cx,
3856 );
3857 this.highlight_background::<DocumentHighlightWrite>(
3858 write_ranges,
3859 |theme| theme.editor_document_highlight_write_background,
3860 cx,
3861 );
3862 cx.notify();
3863 })
3864 .log_err();
3865 }
3866 }));
3867 None
3868 }
3869
3870 fn refresh_copilot_suggestions(
3871 &mut self,
3872 debounce: bool,
3873 cx: &mut ViewContext<Self>,
3874 ) -> Option<()> {
3875 let copilot = Copilot::global(cx)?;
3876 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3877 self.clear_copilot_suggestions(cx);
3878 return None;
3879 }
3880 self.update_visible_copilot_suggestion(cx);
3881
3882 let snapshot = self.buffer.read(cx).snapshot(cx);
3883 let cursor = self.selections.newest_anchor().head();
3884 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3885 self.clear_copilot_suggestions(cx);
3886 return None;
3887 }
3888
3889 let (buffer, buffer_position) =
3890 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3891 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3892 if debounce {
3893 cx.background_executor()
3894 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3895 .await;
3896 }
3897
3898 let completions = copilot
3899 .update(&mut cx, |copilot, cx| {
3900 copilot.completions(&buffer, buffer_position, cx)
3901 })
3902 .log_err()
3903 .unwrap_or(Task::ready(Ok(Vec::new())))
3904 .await
3905 .log_err()
3906 .into_iter()
3907 .flatten()
3908 .collect_vec();
3909
3910 this.update(&mut cx, |this, cx| {
3911 if !completions.is_empty() {
3912 this.copilot_state.cycled = false;
3913 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3914 this.copilot_state.completions.clear();
3915 this.copilot_state.active_completion_index = 0;
3916 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3917 for completion in completions {
3918 this.copilot_state.push_completion(completion);
3919 }
3920 this.update_visible_copilot_suggestion(cx);
3921 }
3922 })
3923 .log_err()?;
3924 Some(())
3925 });
3926
3927 Some(())
3928 }
3929
3930 fn cycle_copilot_suggestions(
3931 &mut self,
3932 direction: Direction,
3933 cx: &mut ViewContext<Self>,
3934 ) -> Option<()> {
3935 let copilot = Copilot::global(cx)?;
3936 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3937 return None;
3938 }
3939
3940 if self.copilot_state.cycled {
3941 self.copilot_state.cycle_completions(direction);
3942 self.update_visible_copilot_suggestion(cx);
3943 } else {
3944 let cursor = self.selections.newest_anchor().head();
3945 let (buffer, buffer_position) =
3946 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3947 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3948 let completions = copilot
3949 .update(&mut cx, |copilot, cx| {
3950 copilot.completions_cycling(&buffer, buffer_position, cx)
3951 })
3952 .log_err()?
3953 .await;
3954
3955 this.update(&mut cx, |this, cx| {
3956 this.copilot_state.cycled = true;
3957 for completion in completions.log_err().into_iter().flatten() {
3958 this.copilot_state.push_completion(completion);
3959 }
3960 this.copilot_state.cycle_completions(direction);
3961 this.update_visible_copilot_suggestion(cx);
3962 })
3963 .log_err()?;
3964
3965 Some(())
3966 });
3967 }
3968
3969 Some(())
3970 }
3971
3972 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3973 if !self.has_active_copilot_suggestion(cx) {
3974 self.refresh_copilot_suggestions(false, cx);
3975 return;
3976 }
3977
3978 self.update_visible_copilot_suggestion(cx);
3979 }
3980
3981 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3982 self.show_cursor_names(cx);
3983 }
3984
3985 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3986 self.show_cursor_names = true;
3987 cx.notify();
3988 cx.spawn(|this, mut cx| async move {
3989 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3990 this.update(&mut cx, |this, cx| {
3991 this.show_cursor_names = false;
3992 cx.notify()
3993 })
3994 .ok()
3995 })
3996 .detach();
3997 }
3998
3999 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
4000 if self.has_active_copilot_suggestion(cx) {
4001 self.cycle_copilot_suggestions(Direction::Next, cx);
4002 } else {
4003 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4004 if is_copilot_disabled {
4005 cx.propagate();
4006 }
4007 }
4008 }
4009
4010 fn previous_copilot_suggestion(
4011 &mut self,
4012 _: &copilot::PreviousSuggestion,
4013 cx: &mut ViewContext<Self>,
4014 ) {
4015 if self.has_active_copilot_suggestion(cx) {
4016 self.cycle_copilot_suggestions(Direction::Prev, cx);
4017 } else {
4018 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4019 if is_copilot_disabled {
4020 cx.propagate();
4021 }
4022 }
4023 }
4024
4025 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4026 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4027 if let Some((copilot, completion)) =
4028 Copilot::global(cx).zip(self.copilot_state.active_completion())
4029 {
4030 copilot
4031 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4032 .detach_and_log_err(cx);
4033
4034 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4035 }
4036 cx.emit(EditorEvent::InputHandled {
4037 utf16_range_to_replace: None,
4038 text: suggestion.text.to_string().into(),
4039 });
4040 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4041 cx.notify();
4042 true
4043 } else {
4044 false
4045 }
4046 }
4047
4048 fn accept_partial_copilot_suggestion(
4049 &mut self,
4050 _: &AcceptPartialCopilotSuggestion,
4051 cx: &mut ViewContext<Self>,
4052 ) {
4053 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4054 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4055 let mut partial_suggestion = suggestion
4056 .text
4057 .chars()
4058 .by_ref()
4059 .take_while(|c| c.is_alphabetic())
4060 .collect::<String>();
4061 if partial_suggestion.is_empty() {
4062 partial_suggestion = suggestion
4063 .text
4064 .chars()
4065 .by_ref()
4066 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4067 .collect::<String>();
4068 }
4069
4070 cx.emit(EditorEvent::InputHandled {
4071 utf16_range_to_replace: None,
4072 text: partial_suggestion.clone().into(),
4073 });
4074 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4075 self.refresh_copilot_suggestions(true, cx);
4076 cx.notify();
4077 }
4078 }
4079 }
4080
4081 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4082 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4083 if let Some(copilot) = Copilot::global(cx) {
4084 copilot
4085 .update(cx, |copilot, cx| {
4086 copilot.discard_completions(&self.copilot_state.completions, cx)
4087 })
4088 .detach_and_log_err(cx);
4089
4090 self.report_copilot_event(None, false, cx)
4091 }
4092
4093 self.display_map.update(cx, |map, cx| {
4094 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4095 });
4096 cx.notify();
4097 true
4098 } else {
4099 false
4100 }
4101 }
4102
4103 fn is_copilot_enabled_at(
4104 &self,
4105 location: Anchor,
4106 snapshot: &MultiBufferSnapshot,
4107 cx: &mut ViewContext<Self>,
4108 ) -> bool {
4109 let file = snapshot.file_at(location);
4110 let language = snapshot.language_at(location);
4111 let settings = all_language_settings(file, cx);
4112 self.show_copilot_suggestions
4113 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4114 }
4115
4116 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4117 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4118 let buffer = self.buffer.read(cx).read(cx);
4119 suggestion.position.is_valid(&buffer)
4120 } else {
4121 false
4122 }
4123 }
4124
4125 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4126 let suggestion = self.copilot_state.suggestion.take()?;
4127 self.display_map.update(cx, |map, cx| {
4128 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4129 });
4130 let buffer = self.buffer.read(cx).read(cx);
4131
4132 if suggestion.position.is_valid(&buffer) {
4133 Some(suggestion)
4134 } else {
4135 None
4136 }
4137 }
4138
4139 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4140 let snapshot = self.buffer.read(cx).snapshot(cx);
4141 let selection = self.selections.newest_anchor();
4142 let cursor = selection.head();
4143
4144 if self.context_menu.read().is_some()
4145 || !self.completion_tasks.is_empty()
4146 || selection.start != selection.end
4147 {
4148 self.discard_copilot_suggestion(cx);
4149 } else if let Some(text) = self
4150 .copilot_state
4151 .text_for_active_completion(cursor, &snapshot)
4152 {
4153 let text = Rope::from(text);
4154 let mut to_remove = Vec::new();
4155 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4156 to_remove.push(suggestion.id);
4157 }
4158
4159 let suggestion_inlay =
4160 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4161 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4162 self.display_map.update(cx, move |map, cx| {
4163 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4164 });
4165 cx.notify();
4166 } else {
4167 self.discard_copilot_suggestion(cx);
4168 }
4169 }
4170
4171 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4172 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4173 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4174 }
4175 self.copilot_state = CopilotState::default();
4176 self.discard_copilot_suggestion(cx);
4177 }
4178
4179 pub fn render_code_actions_indicator(
4180 &self,
4181 _style: &EditorStyle,
4182 is_active: bool,
4183 cx: &mut ViewContext<Self>,
4184 ) -> Option<IconButton> {
4185 if self.available_code_actions.is_some() {
4186 Some(
4187 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4188 .icon_size(IconSize::XSmall)
4189 .size(ui::ButtonSize::None)
4190 .icon_color(Color::Muted)
4191 .selected(is_active)
4192 .on_click(cx.listener(|editor, _e, cx| {
4193 editor.toggle_code_actions(
4194 &ToggleCodeActions {
4195 deployed_from_indicator: true,
4196 },
4197 cx,
4198 );
4199 })),
4200 )
4201 } else {
4202 None
4203 }
4204 }
4205
4206 pub fn render_fold_indicators(
4207 &self,
4208 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4209 _style: &EditorStyle,
4210 gutter_hovered: bool,
4211 _line_height: Pixels,
4212 _gutter_margin: Pixels,
4213 editor_view: View<Editor>,
4214 ) -> Vec<Option<IconButton>> {
4215 fold_data
4216 .iter()
4217 .enumerate()
4218 .map(|(ix, fold_data)| {
4219 fold_data
4220 .map(|(fold_status, buffer_row, active)| {
4221 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4222 IconButton::new(ix, ui::IconName::ChevronDown)
4223 .on_click({
4224 let view = editor_view.clone();
4225 move |_e, cx| {
4226 view.update(cx, |editor, cx| match fold_status {
4227 FoldStatus::Folded => {
4228 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4229 }
4230 FoldStatus::Foldable => {
4231 editor.fold_at(&FoldAt { buffer_row }, cx);
4232 }
4233 })
4234 }
4235 })
4236 .icon_color(ui::Color::Muted)
4237 .icon_size(ui::IconSize::Small)
4238 .selected(fold_status == FoldStatus::Folded)
4239 .selected_icon(ui::IconName::ChevronRight)
4240 .size(ui::ButtonSize::None)
4241 })
4242 })
4243 .flatten()
4244 })
4245 .collect()
4246 }
4247
4248 pub fn context_menu_visible(&self) -> bool {
4249 self.context_menu
4250 .read()
4251 .as_ref()
4252 .map_or(false, |menu| menu.visible())
4253 }
4254
4255 pub fn render_context_menu(
4256 &self,
4257 cursor_position: DisplayPoint,
4258 style: &EditorStyle,
4259 max_height: Pixels,
4260 cx: &mut ViewContext<Editor>,
4261 ) -> Option<(DisplayPoint, AnyElement)> {
4262 self.context_menu.read().as_ref().map(|menu| {
4263 menu.render(
4264 cursor_position,
4265 style,
4266 max_height,
4267 self.workspace.as_ref().map(|(w, _)| w.clone()),
4268 cx,
4269 )
4270 })
4271 }
4272
4273 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4274 cx.notify();
4275 self.completion_tasks.clear();
4276 let context_menu = self.context_menu.write().take();
4277 if context_menu.is_some() {
4278 self.update_visible_copilot_suggestion(cx);
4279 }
4280 context_menu
4281 }
4282
4283 pub fn insert_snippet(
4284 &mut self,
4285 insertion_ranges: &[Range<usize>],
4286 snippet: Snippet,
4287 cx: &mut ViewContext<Self>,
4288 ) -> Result<()> {
4289 let tabstops = self.buffer.update(cx, |buffer, cx| {
4290 let snippet_text: Arc<str> = snippet.text.clone().into();
4291 buffer.edit(
4292 insertion_ranges
4293 .iter()
4294 .cloned()
4295 .map(|range| (range, snippet_text.clone())),
4296 Some(AutoindentMode::EachLine),
4297 cx,
4298 );
4299
4300 let snapshot = &*buffer.read(cx);
4301 let snippet = &snippet;
4302 snippet
4303 .tabstops
4304 .iter()
4305 .map(|tabstop| {
4306 let mut tabstop_ranges = tabstop
4307 .iter()
4308 .flat_map(|tabstop_range| {
4309 let mut delta = 0_isize;
4310 insertion_ranges.iter().map(move |insertion_range| {
4311 let insertion_start = insertion_range.start as isize + delta;
4312 delta +=
4313 snippet.text.len() as isize - insertion_range.len() as isize;
4314
4315 let start = snapshot.anchor_before(
4316 (insertion_start + tabstop_range.start) as usize,
4317 );
4318 let end = snapshot
4319 .anchor_after((insertion_start + tabstop_range.end) as usize);
4320 start..end
4321 })
4322 })
4323 .collect::<Vec<_>>();
4324 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4325 tabstop_ranges
4326 })
4327 .collect::<Vec<_>>()
4328 });
4329
4330 if let Some(tabstop) = tabstops.first() {
4331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4332 s.select_ranges(tabstop.iter().cloned());
4333 });
4334 self.snippet_stack.push(SnippetState {
4335 active_index: 0,
4336 ranges: tabstops,
4337 });
4338
4339 // Check whether the just-entered snippet ends with an auto-closable bracket.
4340 if self.autoclose_regions.is_empty() {
4341 let snapshot = self.buffer.read(cx).snapshot(cx);
4342 for selection in &mut self.selections.all::<Point>(cx) {
4343 let selection_head = selection.head();
4344 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4345 continue;
4346 };
4347
4348 let mut bracket_pair = None;
4349 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4350 let prev_chars = snapshot
4351 .reversed_chars_at(selection_head)
4352 .collect::<String>();
4353 for (pair, enabled) in scope.brackets() {
4354 if enabled
4355 && pair.close
4356 && prev_chars.starts_with(pair.start.as_str())
4357 && next_chars.starts_with(pair.end.as_str())
4358 {
4359 bracket_pair = Some(pair.clone());
4360 break;
4361 }
4362 }
4363 if let Some(pair) = bracket_pair {
4364 let start = snapshot.anchor_after(selection_head);
4365 let end = snapshot.anchor_after(selection_head);
4366 self.autoclose_regions.push(AutocloseRegion {
4367 selection_id: selection.id,
4368 range: start..end,
4369 pair,
4370 });
4371 }
4372 }
4373 }
4374 }
4375 Ok(())
4376 }
4377
4378 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4379 self.move_to_snippet_tabstop(Bias::Right, cx)
4380 }
4381
4382 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4383 self.move_to_snippet_tabstop(Bias::Left, cx)
4384 }
4385
4386 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4387 if let Some(mut snippet) = self.snippet_stack.pop() {
4388 match bias {
4389 Bias::Left => {
4390 if snippet.active_index > 0 {
4391 snippet.active_index -= 1;
4392 } else {
4393 self.snippet_stack.push(snippet);
4394 return false;
4395 }
4396 }
4397 Bias::Right => {
4398 if snippet.active_index + 1 < snippet.ranges.len() {
4399 snippet.active_index += 1;
4400 } else {
4401 self.snippet_stack.push(snippet);
4402 return false;
4403 }
4404 }
4405 }
4406 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4407 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4408 s.select_anchor_ranges(current_ranges.iter().cloned())
4409 });
4410 // If snippet state is not at the last tabstop, push it back on the stack
4411 if snippet.active_index + 1 < snippet.ranges.len() {
4412 self.snippet_stack.push(snippet);
4413 }
4414 return true;
4415 }
4416 }
4417
4418 false
4419 }
4420
4421 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4422 self.transact(cx, |this, cx| {
4423 this.select_all(&SelectAll, cx);
4424 this.insert("", cx);
4425 });
4426 }
4427
4428 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4429 self.transact(cx, |this, cx| {
4430 this.select_autoclose_pair(cx);
4431 let mut selections = this.selections.all::<Point>(cx);
4432 if !this.selections.line_mode {
4433 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4434 for selection in &mut selections {
4435 if selection.is_empty() {
4436 let old_head = selection.head();
4437 let mut new_head =
4438 movement::left(&display_map, old_head.to_display_point(&display_map))
4439 .to_point(&display_map);
4440 if let Some((buffer, line_buffer_range)) = display_map
4441 .buffer_snapshot
4442 .buffer_line_for_row(old_head.row)
4443 {
4444 let indent_size =
4445 buffer.indent_size_for_line(line_buffer_range.start.row);
4446 let indent_len = match indent_size.kind {
4447 IndentKind::Space => {
4448 buffer.settings_at(line_buffer_range.start, cx).tab_size
4449 }
4450 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4451 };
4452 if old_head.column <= indent_size.len && old_head.column > 0 {
4453 let indent_len = indent_len.get();
4454 new_head = cmp::min(
4455 new_head,
4456 Point::new(
4457 old_head.row,
4458 ((old_head.column - 1) / indent_len) * indent_len,
4459 ),
4460 );
4461 }
4462 }
4463
4464 selection.set_head(new_head, SelectionGoal::None);
4465 }
4466 }
4467 }
4468
4469 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4470 this.insert("", cx);
4471 this.refresh_copilot_suggestions(true, cx);
4472 });
4473 }
4474
4475 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4476 self.transact(cx, |this, cx| {
4477 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4478 let line_mode = s.line_mode;
4479 s.move_with(|map, selection| {
4480 if selection.is_empty() && !line_mode {
4481 let cursor = movement::right(map, selection.head());
4482 selection.end = cursor;
4483 selection.reversed = true;
4484 selection.goal = SelectionGoal::None;
4485 }
4486 })
4487 });
4488 this.insert("", cx);
4489 this.refresh_copilot_suggestions(true, cx);
4490 });
4491 }
4492
4493 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4494 if self.move_to_prev_snippet_tabstop(cx) {
4495 return;
4496 }
4497
4498 self.outdent(&Outdent, cx);
4499 }
4500
4501 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4502 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4503 return;
4504 }
4505
4506 let mut selections = self.selections.all_adjusted(cx);
4507 let buffer = self.buffer.read(cx);
4508 let snapshot = buffer.snapshot(cx);
4509 let rows_iter = selections.iter().map(|s| s.head().row);
4510 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4511
4512 let mut edits = Vec::new();
4513 let mut prev_edited_row = 0;
4514 let mut row_delta = 0;
4515 for selection in &mut selections {
4516 if selection.start.row != prev_edited_row {
4517 row_delta = 0;
4518 }
4519 prev_edited_row = selection.end.row;
4520
4521 // If the selection is non-empty, then increase the indentation of the selected lines.
4522 if !selection.is_empty() {
4523 row_delta =
4524 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4525 continue;
4526 }
4527
4528 // If the selection is empty and the cursor is in the leading whitespace before the
4529 // suggested indentation, then auto-indent the line.
4530 let cursor = selection.head();
4531 let current_indent = snapshot.indent_size_for_line(cursor.row);
4532 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4533 if cursor.column < suggested_indent.len
4534 && cursor.column <= current_indent.len
4535 && current_indent.len <= suggested_indent.len
4536 {
4537 selection.start = Point::new(cursor.row, suggested_indent.len);
4538 selection.end = selection.start;
4539 if row_delta == 0 {
4540 edits.extend(Buffer::edit_for_indent_size_adjustment(
4541 cursor.row,
4542 current_indent,
4543 suggested_indent,
4544 ));
4545 row_delta = suggested_indent.len - current_indent.len;
4546 }
4547 continue;
4548 }
4549 }
4550
4551 // Accept copilot suggestion if there is only one selection and the cursor is not
4552 // in the leading whitespace.
4553 if self.selections.count() == 1
4554 && cursor.column >= current_indent.len
4555 && self.has_active_copilot_suggestion(cx)
4556 {
4557 self.accept_copilot_suggestion(cx);
4558 return;
4559 }
4560
4561 // Otherwise, insert a hard or soft tab.
4562 let settings = buffer.settings_at(cursor, cx);
4563 let tab_size = if settings.hard_tabs {
4564 IndentSize::tab()
4565 } else {
4566 let tab_size = settings.tab_size.get();
4567 let char_column = snapshot
4568 .text_for_range(Point::new(cursor.row, 0)..cursor)
4569 .flat_map(str::chars)
4570 .count()
4571 + row_delta as usize;
4572 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4573 IndentSize::spaces(chars_to_next_tab_stop)
4574 };
4575 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4576 selection.end = selection.start;
4577 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4578 row_delta += tab_size.len;
4579 }
4580
4581 self.transact(cx, |this, cx| {
4582 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4583 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4584 this.refresh_copilot_suggestions(true, cx);
4585 });
4586 }
4587
4588 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4589 if self.read_only(cx) {
4590 return;
4591 }
4592 let mut selections = self.selections.all::<Point>(cx);
4593 let mut prev_edited_row = 0;
4594 let mut row_delta = 0;
4595 let mut edits = Vec::new();
4596 let buffer = self.buffer.read(cx);
4597 let snapshot = buffer.snapshot(cx);
4598 for selection in &mut selections {
4599 if selection.start.row != prev_edited_row {
4600 row_delta = 0;
4601 }
4602 prev_edited_row = selection.end.row;
4603
4604 row_delta =
4605 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4606 }
4607
4608 self.transact(cx, |this, cx| {
4609 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4610 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4611 });
4612 }
4613
4614 fn indent_selection(
4615 buffer: &MultiBuffer,
4616 snapshot: &MultiBufferSnapshot,
4617 selection: &mut Selection<Point>,
4618 edits: &mut Vec<(Range<Point>, String)>,
4619 delta_for_start_row: u32,
4620 cx: &AppContext,
4621 ) -> u32 {
4622 let settings = buffer.settings_at(selection.start, cx);
4623 let tab_size = settings.tab_size.get();
4624 let indent_kind = if settings.hard_tabs {
4625 IndentKind::Tab
4626 } else {
4627 IndentKind::Space
4628 };
4629 let mut start_row = selection.start.row;
4630 let mut end_row = selection.end.row + 1;
4631
4632 // If a selection ends at the beginning of a line, don't indent
4633 // that last line.
4634 if selection.end.column == 0 && selection.end.row > selection.start.row {
4635 end_row -= 1;
4636 }
4637
4638 // Avoid re-indenting a row that has already been indented by a
4639 // previous selection, but still update this selection's column
4640 // to reflect that indentation.
4641 if delta_for_start_row > 0 {
4642 start_row += 1;
4643 selection.start.column += delta_for_start_row;
4644 if selection.end.row == selection.start.row {
4645 selection.end.column += delta_for_start_row;
4646 }
4647 }
4648
4649 let mut delta_for_end_row = 0;
4650 for row in start_row..end_row {
4651 let current_indent = snapshot.indent_size_for_line(row);
4652 let indent_delta = match (current_indent.kind, indent_kind) {
4653 (IndentKind::Space, IndentKind::Space) => {
4654 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4655 IndentSize::spaces(columns_to_next_tab_stop)
4656 }
4657 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4658 (_, IndentKind::Tab) => IndentSize::tab(),
4659 };
4660
4661 let row_start = Point::new(row, 0);
4662 edits.push((
4663 row_start..row_start,
4664 indent_delta.chars().collect::<String>(),
4665 ));
4666
4667 // Update this selection's endpoints to reflect the indentation.
4668 if row == selection.start.row {
4669 selection.start.column += indent_delta.len;
4670 }
4671 if row == selection.end.row {
4672 selection.end.column += indent_delta.len;
4673 delta_for_end_row = indent_delta.len;
4674 }
4675 }
4676
4677 if selection.start.row == selection.end.row {
4678 delta_for_start_row + delta_for_end_row
4679 } else {
4680 delta_for_end_row
4681 }
4682 }
4683
4684 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4685 if self.read_only(cx) {
4686 return;
4687 }
4688 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4689 let selections = self.selections.all::<Point>(cx);
4690 let mut deletion_ranges = Vec::new();
4691 let mut last_outdent = None;
4692 {
4693 let buffer = self.buffer.read(cx);
4694 let snapshot = buffer.snapshot(cx);
4695 for selection in &selections {
4696 let settings = buffer.settings_at(selection.start, cx);
4697 let tab_size = settings.tab_size.get();
4698 let mut rows = selection.spanned_rows(false, &display_map);
4699
4700 // Avoid re-outdenting a row that has already been outdented by a
4701 // previous selection.
4702 if let Some(last_row) = last_outdent {
4703 if last_row == rows.start {
4704 rows.start += 1;
4705 }
4706 }
4707
4708 for row in rows {
4709 let indent_size = snapshot.indent_size_for_line(row);
4710 if indent_size.len > 0 {
4711 let deletion_len = match indent_size.kind {
4712 IndentKind::Space => {
4713 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4714 if columns_to_prev_tab_stop == 0 {
4715 tab_size
4716 } else {
4717 columns_to_prev_tab_stop
4718 }
4719 }
4720 IndentKind::Tab => 1,
4721 };
4722 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4723 last_outdent = Some(row);
4724 }
4725 }
4726 }
4727 }
4728
4729 self.transact(cx, |this, cx| {
4730 this.buffer.update(cx, |buffer, cx| {
4731 let empty_str: Arc<str> = "".into();
4732 buffer.edit(
4733 deletion_ranges
4734 .into_iter()
4735 .map(|range| (range, empty_str.clone())),
4736 None,
4737 cx,
4738 );
4739 });
4740 let selections = this.selections.all::<usize>(cx);
4741 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4742 });
4743 }
4744
4745 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4746 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4747 let selections = self.selections.all::<Point>(cx);
4748
4749 let mut new_cursors = Vec::new();
4750 let mut edit_ranges = Vec::new();
4751 let mut selections = selections.iter().peekable();
4752 while let Some(selection) = selections.next() {
4753 let mut rows = selection.spanned_rows(false, &display_map);
4754 let goal_display_column = selection.head().to_display_point(&display_map).column();
4755
4756 // Accumulate contiguous regions of rows that we want to delete.
4757 while let Some(next_selection) = selections.peek() {
4758 let next_rows = next_selection.spanned_rows(false, &display_map);
4759 if next_rows.start <= rows.end {
4760 rows.end = next_rows.end;
4761 selections.next().unwrap();
4762 } else {
4763 break;
4764 }
4765 }
4766
4767 let buffer = &display_map.buffer_snapshot;
4768 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4769 let edit_end;
4770 let cursor_buffer_row;
4771 if buffer.max_point().row >= rows.end {
4772 // If there's a line after the range, delete the \n from the end of the row range
4773 // and position the cursor on the next line.
4774 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4775 cursor_buffer_row = rows.end;
4776 } else {
4777 // If there isn't a line after the range, delete the \n from the line before the
4778 // start of the row range and position the cursor there.
4779 edit_start = edit_start.saturating_sub(1);
4780 edit_end = buffer.len();
4781 cursor_buffer_row = rows.start.saturating_sub(1);
4782 }
4783
4784 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4785 *cursor.column_mut() =
4786 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4787
4788 new_cursors.push((
4789 selection.id,
4790 buffer.anchor_after(cursor.to_point(&display_map)),
4791 ));
4792 edit_ranges.push(edit_start..edit_end);
4793 }
4794
4795 self.transact(cx, |this, cx| {
4796 let buffer = this.buffer.update(cx, |buffer, cx| {
4797 let empty_str: Arc<str> = "".into();
4798 buffer.edit(
4799 edit_ranges
4800 .into_iter()
4801 .map(|range| (range, empty_str.clone())),
4802 None,
4803 cx,
4804 );
4805 buffer.snapshot(cx)
4806 });
4807 let new_selections = new_cursors
4808 .into_iter()
4809 .map(|(id, cursor)| {
4810 let cursor = cursor.to_point(&buffer);
4811 Selection {
4812 id,
4813 start: cursor,
4814 end: cursor,
4815 reversed: false,
4816 goal: SelectionGoal::None,
4817 }
4818 })
4819 .collect();
4820
4821 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4822 s.select(new_selections);
4823 });
4824 });
4825 }
4826
4827 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4828 if self.read_only(cx) {
4829 return;
4830 }
4831 let mut row_ranges = Vec::<Range<u32>>::new();
4832 for selection in self.selections.all::<Point>(cx) {
4833 let start = selection.start.row;
4834 let end = if selection.start.row == selection.end.row {
4835 selection.start.row + 1
4836 } else {
4837 selection.end.row
4838 };
4839
4840 if let Some(last_row_range) = row_ranges.last_mut() {
4841 if start <= last_row_range.end {
4842 last_row_range.end = end;
4843 continue;
4844 }
4845 }
4846 row_ranges.push(start..end);
4847 }
4848
4849 let snapshot = self.buffer.read(cx).snapshot(cx);
4850 let mut cursor_positions = Vec::new();
4851 for row_range in &row_ranges {
4852 let anchor = snapshot.anchor_before(Point::new(
4853 row_range.end - 1,
4854 snapshot.line_len(row_range.end - 1),
4855 ));
4856 cursor_positions.push(anchor..anchor);
4857 }
4858
4859 self.transact(cx, |this, cx| {
4860 for row_range in row_ranges.into_iter().rev() {
4861 for row in row_range.rev() {
4862 let end_of_line = Point::new(row, snapshot.line_len(row));
4863 let indent = snapshot.indent_size_for_line(row + 1);
4864 let start_of_next_line = Point::new(row + 1, indent.len);
4865
4866 let replace = if snapshot.line_len(row + 1) > indent.len {
4867 " "
4868 } else {
4869 ""
4870 };
4871
4872 this.buffer.update(cx, |buffer, cx| {
4873 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4874 });
4875 }
4876 }
4877
4878 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4879 s.select_anchor_ranges(cursor_positions)
4880 });
4881 });
4882 }
4883
4884 pub fn sort_lines_case_sensitive(
4885 &mut self,
4886 _: &SortLinesCaseSensitive,
4887 cx: &mut ViewContext<Self>,
4888 ) {
4889 self.manipulate_lines(cx, |lines| lines.sort())
4890 }
4891
4892 pub fn sort_lines_case_insensitive(
4893 &mut self,
4894 _: &SortLinesCaseInsensitive,
4895 cx: &mut ViewContext<Self>,
4896 ) {
4897 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4898 }
4899
4900 pub fn unique_lines_case_insensitive(
4901 &mut self,
4902 _: &UniqueLinesCaseInsensitive,
4903 cx: &mut ViewContext<Self>,
4904 ) {
4905 self.manipulate_lines(cx, |lines| {
4906 let mut seen = HashSet::default();
4907 lines.retain(|line| seen.insert(line.to_lowercase()));
4908 })
4909 }
4910
4911 pub fn unique_lines_case_sensitive(
4912 &mut self,
4913 _: &UniqueLinesCaseSensitive,
4914 cx: &mut ViewContext<Self>,
4915 ) {
4916 self.manipulate_lines(cx, |lines| {
4917 let mut seen = HashSet::default();
4918 lines.retain(|line| seen.insert(*line));
4919 })
4920 }
4921
4922 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4923 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4924 if !revert_changes.is_empty() {
4925 self.transact(cx, |editor, cx| {
4926 editor.buffer().update(cx, |multi_buffer, cx| {
4927 for (buffer_id, buffer_revert_ranges) in revert_changes {
4928 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4929 buffer.update(cx, |buffer, cx| {
4930 buffer.edit(buffer_revert_ranges, None, cx);
4931 });
4932 }
4933 }
4934 });
4935 editor.change_selections(None, cx, |selections| selections.refresh());
4936 });
4937 }
4938 }
4939
4940 fn gather_revert_changes(
4941 &mut self,
4942 selections: &[Selection<Anchor>],
4943 cx: &mut ViewContext<'_, Editor>,
4944 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4945 let mut revert_changes = HashMap::default();
4946 self.buffer.update(cx, |multi_buffer, cx| {
4947 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4948 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4949 let head = selection.head();
4950 let tail = selection.tail();
4951 let start = tail.to_point(&multi_buffer_snapshot).row;
4952 let end = head.to_point(&multi_buffer_snapshot).row;
4953 if start > end {
4954 end..start
4955 } else {
4956 start..end
4957 }
4958 });
4959
4960 let mut processed_buffer_rows =
4961 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4962 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4963 let query_rows =
4964 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4965 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4966 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4967 // when the caret is just above or just below the deleted hunk.
4968 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4969 let related_to_selection = if allow_adjacent {
4970 hunk.associated_range.overlaps(&query_rows)
4971 || hunk.associated_range.start == query_rows.end
4972 || hunk.associated_range.end == query_rows.start
4973 } else {
4974 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4975 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4976 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4977 || selected_multi_buffer_rows.end == hunk.associated_range.start
4978 };
4979 if related_to_selection {
4980 if !processed_buffer_rows
4981 .entry(hunk.buffer_id)
4982 .or_default()
4983 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4984 {
4985 continue;
4986 }
4987 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4988 }
4989 }
4990 }
4991 });
4992 revert_changes
4993 }
4994
4995 fn prepare_revert_change(
4996 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4997 multi_buffer: &MultiBuffer,
4998 hunk: &DiffHunk<u32>,
4999 cx: &mut AppContext,
5000 ) -> Option<()> {
5001 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5002 let buffer = buffer.read(cx);
5003 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5004 let buffer_snapshot = buffer.snapshot();
5005 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5006 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5007 probe
5008 .0
5009 .start
5010 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5011 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5012 .then(probe.1.as_ref().cmp(original_text))
5013 }) {
5014 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5015 Some(())
5016 } else {
5017 None
5018 }
5019 }
5020
5021 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5022 self.manipulate_lines(cx, |lines| lines.reverse())
5023 }
5024
5025 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5026 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5027 }
5028
5029 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5030 where
5031 Fn: FnMut(&mut Vec<&str>),
5032 {
5033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5034 let buffer = self.buffer.read(cx).snapshot(cx);
5035
5036 let mut edits = Vec::new();
5037
5038 let selections = self.selections.all::<Point>(cx);
5039 let mut selections = selections.iter().peekable();
5040 let mut contiguous_row_selections = Vec::new();
5041 let mut new_selections = Vec::new();
5042 let mut added_lines = 0;
5043 let mut removed_lines = 0;
5044
5045 while let Some(selection) = selections.next() {
5046 let (start_row, end_row) = consume_contiguous_rows(
5047 &mut contiguous_row_selections,
5048 selection,
5049 &display_map,
5050 &mut selections,
5051 );
5052
5053 let start_point = Point::new(start_row, 0);
5054 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5055 let text = buffer
5056 .text_for_range(start_point..end_point)
5057 .collect::<String>();
5058
5059 let mut lines = text.split('\n').collect_vec();
5060
5061 let lines_before = lines.len();
5062 callback(&mut lines);
5063 let lines_after = lines.len();
5064
5065 edits.push((start_point..end_point, lines.join("\n")));
5066
5067 // Selections must change based on added and removed line count
5068 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5069 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5070 new_selections.push(Selection {
5071 id: selection.id,
5072 start: start_row,
5073 end: end_row,
5074 goal: SelectionGoal::None,
5075 reversed: selection.reversed,
5076 });
5077
5078 if lines_after > lines_before {
5079 added_lines += lines_after - lines_before;
5080 } else if lines_before > lines_after {
5081 removed_lines += lines_before - lines_after;
5082 }
5083 }
5084
5085 self.transact(cx, |this, cx| {
5086 let buffer = this.buffer.update(cx, |buffer, cx| {
5087 buffer.edit(edits, None, cx);
5088 buffer.snapshot(cx)
5089 });
5090
5091 // Recalculate offsets on newly edited buffer
5092 let new_selections = new_selections
5093 .iter()
5094 .map(|s| {
5095 let start_point = Point::new(s.start, 0);
5096 let end_point = Point::new(s.end, buffer.line_len(s.end));
5097 Selection {
5098 id: s.id,
5099 start: buffer.point_to_offset(start_point),
5100 end: buffer.point_to_offset(end_point),
5101 goal: s.goal,
5102 reversed: s.reversed,
5103 }
5104 })
5105 .collect();
5106
5107 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5108 s.select(new_selections);
5109 });
5110
5111 this.request_autoscroll(Autoscroll::fit(), cx);
5112 });
5113 }
5114
5115 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5116 self.manipulate_text(cx, |text| text.to_uppercase())
5117 }
5118
5119 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5120 self.manipulate_text(cx, |text| text.to_lowercase())
5121 }
5122
5123 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5124 self.manipulate_text(cx, |text| {
5125 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5126 // https://github.com/rutrum/convert-case/issues/16
5127 text.split('\n')
5128 .map(|line| line.to_case(Case::Title))
5129 .join("\n")
5130 })
5131 }
5132
5133 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5134 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5135 }
5136
5137 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5138 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5139 }
5140
5141 pub fn convert_to_upper_camel_case(
5142 &mut self,
5143 _: &ConvertToUpperCamelCase,
5144 cx: &mut ViewContext<Self>,
5145 ) {
5146 self.manipulate_text(cx, |text| {
5147 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5148 // https://github.com/rutrum/convert-case/issues/16
5149 text.split('\n')
5150 .map(|line| line.to_case(Case::UpperCamel))
5151 .join("\n")
5152 })
5153 }
5154
5155 pub fn convert_to_lower_camel_case(
5156 &mut self,
5157 _: &ConvertToLowerCamelCase,
5158 cx: &mut ViewContext<Self>,
5159 ) {
5160 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5161 }
5162
5163 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5164 where
5165 Fn: FnMut(&str) -> String,
5166 {
5167 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5168 let buffer = self.buffer.read(cx).snapshot(cx);
5169
5170 let mut new_selections = Vec::new();
5171 let mut edits = Vec::new();
5172 let mut selection_adjustment = 0i32;
5173
5174 for selection in self.selections.all::<usize>(cx) {
5175 let selection_is_empty = selection.is_empty();
5176
5177 let (start, end) = if selection_is_empty {
5178 let word_range = movement::surrounding_word(
5179 &display_map,
5180 selection.start.to_display_point(&display_map),
5181 );
5182 let start = word_range.start.to_offset(&display_map, Bias::Left);
5183 let end = word_range.end.to_offset(&display_map, Bias::Left);
5184 (start, end)
5185 } else {
5186 (selection.start, selection.end)
5187 };
5188
5189 let text = buffer.text_for_range(start..end).collect::<String>();
5190 let old_length = text.len() as i32;
5191 let text = callback(&text);
5192
5193 new_selections.push(Selection {
5194 start: (start as i32 - selection_adjustment) as usize,
5195 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5196 goal: SelectionGoal::None,
5197 ..selection
5198 });
5199
5200 selection_adjustment += old_length - text.len() as i32;
5201
5202 edits.push((start..end, text));
5203 }
5204
5205 self.transact(cx, |this, cx| {
5206 this.buffer.update(cx, |buffer, cx| {
5207 buffer.edit(edits, None, cx);
5208 });
5209
5210 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5211 s.select(new_selections);
5212 });
5213
5214 this.request_autoscroll(Autoscroll::fit(), cx);
5215 });
5216 }
5217
5218 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5219 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5220 let buffer = &display_map.buffer_snapshot;
5221 let selections = self.selections.all::<Point>(cx);
5222
5223 let mut edits = Vec::new();
5224 let mut selections_iter = selections.iter().peekable();
5225 while let Some(selection) = selections_iter.next() {
5226 // Avoid duplicating the same lines twice.
5227 let mut rows = selection.spanned_rows(false, &display_map);
5228
5229 while let Some(next_selection) = selections_iter.peek() {
5230 let next_rows = next_selection.spanned_rows(false, &display_map);
5231 if next_rows.start < rows.end {
5232 rows.end = next_rows.end;
5233 selections_iter.next().unwrap();
5234 } else {
5235 break;
5236 }
5237 }
5238
5239 // Copy the text from the selected row region and splice it either at the start
5240 // or end of the region.
5241 let start = Point::new(rows.start, 0);
5242 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5243 let text = buffer
5244 .text_for_range(start..end)
5245 .chain(Some("\n"))
5246 .collect::<String>();
5247 let insert_location = if action.move_upwards {
5248 Point::new(rows.end, 0)
5249 } else {
5250 start
5251 };
5252 edits.push((insert_location..insert_location, text));
5253 }
5254
5255 self.transact(cx, |this, cx| {
5256 this.buffer.update(cx, |buffer, cx| {
5257 buffer.edit(edits, None, cx);
5258 });
5259
5260 this.request_autoscroll(Autoscroll::fit(), cx);
5261 });
5262 }
5263
5264 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5265 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5266 let buffer = self.buffer.read(cx).snapshot(cx);
5267
5268 let mut edits = Vec::new();
5269 let mut unfold_ranges = Vec::new();
5270 let mut refold_ranges = Vec::new();
5271
5272 let selections = self.selections.all::<Point>(cx);
5273 let mut selections = selections.iter().peekable();
5274 let mut contiguous_row_selections = Vec::new();
5275 let mut new_selections = Vec::new();
5276
5277 while let Some(selection) = selections.next() {
5278 // Find all the selections that span a contiguous row range
5279 let (start_row, end_row) = consume_contiguous_rows(
5280 &mut contiguous_row_selections,
5281 selection,
5282 &display_map,
5283 &mut selections,
5284 );
5285
5286 // Move the text spanned by the row range to be before the line preceding the row range
5287 if start_row > 0 {
5288 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5289 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5290 let insertion_point = display_map
5291 .prev_line_boundary(Point::new(start_row - 1, 0))
5292 .0;
5293
5294 // Don't move lines across excerpts
5295 if buffer
5296 .excerpt_boundaries_in_range((
5297 Bound::Excluded(insertion_point),
5298 Bound::Included(range_to_move.end),
5299 ))
5300 .next()
5301 .is_none()
5302 {
5303 let text = buffer
5304 .text_for_range(range_to_move.clone())
5305 .flat_map(|s| s.chars())
5306 .skip(1)
5307 .chain(['\n'])
5308 .collect::<String>();
5309
5310 edits.push((
5311 buffer.anchor_after(range_to_move.start)
5312 ..buffer.anchor_before(range_to_move.end),
5313 String::new(),
5314 ));
5315 let insertion_anchor = buffer.anchor_after(insertion_point);
5316 edits.push((insertion_anchor..insertion_anchor, text));
5317
5318 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5319
5320 // Move selections up
5321 new_selections.extend(contiguous_row_selections.drain(..).map(
5322 |mut selection| {
5323 selection.start.row -= row_delta;
5324 selection.end.row -= row_delta;
5325 selection
5326 },
5327 ));
5328
5329 // Move folds up
5330 unfold_ranges.push(range_to_move.clone());
5331 for fold in display_map.folds_in_range(
5332 buffer.anchor_before(range_to_move.start)
5333 ..buffer.anchor_after(range_to_move.end),
5334 ) {
5335 let mut start = fold.range.start.to_point(&buffer);
5336 let mut end = fold.range.end.to_point(&buffer);
5337 start.row -= row_delta;
5338 end.row -= row_delta;
5339 refold_ranges.push(start..end);
5340 }
5341 }
5342 }
5343
5344 // If we didn't move line(s), preserve the existing selections
5345 new_selections.append(&mut contiguous_row_selections);
5346 }
5347
5348 self.transact(cx, |this, cx| {
5349 this.unfold_ranges(unfold_ranges, true, true, cx);
5350 this.buffer.update(cx, |buffer, cx| {
5351 for (range, text) in edits {
5352 buffer.edit([(range, text)], None, cx);
5353 }
5354 });
5355 this.fold_ranges(refold_ranges, true, cx);
5356 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5357 s.select(new_selections);
5358 })
5359 });
5360 }
5361
5362 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5363 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5364 let buffer = self.buffer.read(cx).snapshot(cx);
5365
5366 let mut edits = Vec::new();
5367 let mut unfold_ranges = Vec::new();
5368 let mut refold_ranges = Vec::new();
5369
5370 let selections = self.selections.all::<Point>(cx);
5371 let mut selections = selections.iter().peekable();
5372 let mut contiguous_row_selections = Vec::new();
5373 let mut new_selections = Vec::new();
5374
5375 while let Some(selection) = selections.next() {
5376 // Find all the selections that span a contiguous row range
5377 let (start_row, end_row) = consume_contiguous_rows(
5378 &mut contiguous_row_selections,
5379 selection,
5380 &display_map,
5381 &mut selections,
5382 );
5383
5384 // Move the text spanned by the row range to be after the last line of the row range
5385 if end_row <= buffer.max_point().row {
5386 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5387 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5388
5389 // Don't move lines across excerpt boundaries
5390 if buffer
5391 .excerpt_boundaries_in_range((
5392 Bound::Excluded(range_to_move.start),
5393 Bound::Included(insertion_point),
5394 ))
5395 .next()
5396 .is_none()
5397 {
5398 let mut text = String::from("\n");
5399 text.extend(buffer.text_for_range(range_to_move.clone()));
5400 text.pop(); // Drop trailing newline
5401 edits.push((
5402 buffer.anchor_after(range_to_move.start)
5403 ..buffer.anchor_before(range_to_move.end),
5404 String::new(),
5405 ));
5406 let insertion_anchor = buffer.anchor_after(insertion_point);
5407 edits.push((insertion_anchor..insertion_anchor, text));
5408
5409 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5410
5411 // Move selections down
5412 new_selections.extend(contiguous_row_selections.drain(..).map(
5413 |mut selection| {
5414 selection.start.row += row_delta;
5415 selection.end.row += row_delta;
5416 selection
5417 },
5418 ));
5419
5420 // Move folds down
5421 unfold_ranges.push(range_to_move.clone());
5422 for fold in display_map.folds_in_range(
5423 buffer.anchor_before(range_to_move.start)
5424 ..buffer.anchor_after(range_to_move.end),
5425 ) {
5426 let mut start = fold.range.start.to_point(&buffer);
5427 let mut end = fold.range.end.to_point(&buffer);
5428 start.row += row_delta;
5429 end.row += row_delta;
5430 refold_ranges.push(start..end);
5431 }
5432 }
5433 }
5434
5435 // If we didn't move line(s), preserve the existing selections
5436 new_selections.append(&mut contiguous_row_selections);
5437 }
5438
5439 self.transact(cx, |this, cx| {
5440 this.unfold_ranges(unfold_ranges, true, true, cx);
5441 this.buffer.update(cx, |buffer, cx| {
5442 for (range, text) in edits {
5443 buffer.edit([(range, text)], None, cx);
5444 }
5445 });
5446 this.fold_ranges(refold_ranges, true, cx);
5447 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5448 });
5449 }
5450
5451 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5452 let text_layout_details = &self.text_layout_details(cx);
5453 self.transact(cx, |this, cx| {
5454 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5455 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5456 let line_mode = s.line_mode;
5457 s.move_with(|display_map, selection| {
5458 if !selection.is_empty() || line_mode {
5459 return;
5460 }
5461
5462 let mut head = selection.head();
5463 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5464 if head.column() == display_map.line_len(head.row()) {
5465 transpose_offset = display_map
5466 .buffer_snapshot
5467 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5468 }
5469
5470 if transpose_offset == 0 {
5471 return;
5472 }
5473
5474 *head.column_mut() += 1;
5475 head = display_map.clip_point(head, Bias::Right);
5476 let goal = SelectionGoal::HorizontalPosition(
5477 display_map
5478 .x_for_display_point(head, &text_layout_details)
5479 .into(),
5480 );
5481 selection.collapse_to(head, goal);
5482
5483 let transpose_start = display_map
5484 .buffer_snapshot
5485 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5486 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5487 let transpose_end = display_map
5488 .buffer_snapshot
5489 .clip_offset(transpose_offset + 1, Bias::Right);
5490 if let Some(ch) =
5491 display_map.buffer_snapshot.chars_at(transpose_start).next()
5492 {
5493 edits.push((transpose_start..transpose_offset, String::new()));
5494 edits.push((transpose_end..transpose_end, ch.to_string()));
5495 }
5496 }
5497 });
5498 edits
5499 });
5500 this.buffer
5501 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5502 let selections = this.selections.all::<usize>(cx);
5503 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5504 s.select(selections);
5505 });
5506 });
5507 }
5508
5509 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5510 let mut text = String::new();
5511 let buffer = self.buffer.read(cx).snapshot(cx);
5512 let mut selections = self.selections.all::<Point>(cx);
5513 let mut clipboard_selections = Vec::with_capacity(selections.len());
5514 {
5515 let max_point = buffer.max_point();
5516 let mut is_first = true;
5517 for selection in &mut selections {
5518 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5519 if is_entire_line {
5520 selection.start = Point::new(selection.start.row, 0);
5521 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5522 selection.goal = SelectionGoal::None;
5523 }
5524 if is_first {
5525 is_first = false;
5526 } else {
5527 text += "\n";
5528 }
5529 let mut len = 0;
5530 for chunk in buffer.text_for_range(selection.start..selection.end) {
5531 text.push_str(chunk);
5532 len += chunk.len();
5533 }
5534 clipboard_selections.push(ClipboardSelection {
5535 len,
5536 is_entire_line,
5537 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5538 });
5539 }
5540 }
5541
5542 self.transact(cx, |this, cx| {
5543 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5544 s.select(selections);
5545 });
5546 this.insert("", cx);
5547 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5548 });
5549 }
5550
5551 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5552 let selections = self.selections.all::<Point>(cx);
5553 let buffer = self.buffer.read(cx).read(cx);
5554 let mut text = String::new();
5555
5556 let mut clipboard_selections = Vec::with_capacity(selections.len());
5557 {
5558 let max_point = buffer.max_point();
5559 let mut is_first = true;
5560 for selection in selections.iter() {
5561 let mut start = selection.start;
5562 let mut end = selection.end;
5563 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5564 if is_entire_line {
5565 start = Point::new(start.row, 0);
5566 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5567 }
5568 if is_first {
5569 is_first = false;
5570 } else {
5571 text += "\n";
5572 }
5573 let mut len = 0;
5574 for chunk in buffer.text_for_range(start..end) {
5575 text.push_str(chunk);
5576 len += chunk.len();
5577 }
5578 clipboard_selections.push(ClipboardSelection {
5579 len,
5580 is_entire_line,
5581 first_line_indent: buffer.indent_size_for_line(start.row).len,
5582 });
5583 }
5584 }
5585
5586 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5587 }
5588
5589 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5590 if self.read_only(cx) {
5591 return;
5592 }
5593
5594 self.transact(cx, |this, cx| {
5595 if let Some(item) = cx.read_from_clipboard() {
5596 let clipboard_text = Cow::Borrowed(item.text());
5597 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5598 let old_selections = this.selections.all::<usize>(cx);
5599 let all_selections_were_entire_line =
5600 clipboard_selections.iter().all(|s| s.is_entire_line);
5601 let first_selection_indent_column =
5602 clipboard_selections.first().map(|s| s.first_line_indent);
5603 if clipboard_selections.len() != old_selections.len() {
5604 clipboard_selections.drain(..);
5605 }
5606
5607 this.buffer.update(cx, |buffer, cx| {
5608 let snapshot = buffer.read(cx);
5609 let mut start_offset = 0;
5610 let mut edits = Vec::new();
5611 let mut original_indent_columns = Vec::new();
5612 let line_mode = this.selections.line_mode;
5613 for (ix, selection) in old_selections.iter().enumerate() {
5614 let to_insert;
5615 let entire_line;
5616 let original_indent_column;
5617 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5618 let end_offset = start_offset + clipboard_selection.len;
5619 to_insert = &clipboard_text[start_offset..end_offset];
5620 entire_line = clipboard_selection.is_entire_line;
5621 start_offset = end_offset + 1;
5622 original_indent_column =
5623 Some(clipboard_selection.first_line_indent);
5624 } else {
5625 to_insert = clipboard_text.as_str();
5626 entire_line = all_selections_were_entire_line;
5627 original_indent_column = first_selection_indent_column
5628 }
5629
5630 // If the corresponding selection was empty when this slice of the
5631 // clipboard text was written, then the entire line containing the
5632 // selection was copied. If this selection is also currently empty,
5633 // then paste the line before the current line of the buffer.
5634 let range = if selection.is_empty() && !line_mode && entire_line {
5635 let column = selection.start.to_point(&snapshot).column as usize;
5636 let line_start = selection.start - column;
5637 line_start..line_start
5638 } else {
5639 selection.range()
5640 };
5641
5642 edits.push((range, to_insert));
5643 original_indent_columns.extend(original_indent_column);
5644 }
5645 drop(snapshot);
5646
5647 buffer.edit(
5648 edits,
5649 Some(AutoindentMode::Block {
5650 original_indent_columns,
5651 }),
5652 cx,
5653 );
5654 });
5655
5656 let selections = this.selections.all::<usize>(cx);
5657 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5658 } else {
5659 this.insert(&clipboard_text, cx);
5660 }
5661 }
5662 });
5663 }
5664
5665 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5666 if self.read_only(cx) {
5667 return;
5668 }
5669
5670 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5671 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5672 self.change_selections(None, cx, |s| {
5673 s.select_anchors(selections.to_vec());
5674 });
5675 }
5676 self.request_autoscroll(Autoscroll::fit(), cx);
5677 self.unmark_text(cx);
5678 self.refresh_copilot_suggestions(true, cx);
5679 cx.emit(EditorEvent::Edited);
5680 }
5681 }
5682
5683 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5684 if self.read_only(cx) {
5685 return;
5686 }
5687
5688 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5689 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5690 {
5691 self.change_selections(None, cx, |s| {
5692 s.select_anchors(selections.to_vec());
5693 });
5694 }
5695 self.request_autoscroll(Autoscroll::fit(), cx);
5696 self.unmark_text(cx);
5697 self.refresh_copilot_suggestions(true, cx);
5698 cx.emit(EditorEvent::Edited);
5699 }
5700 }
5701
5702 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5703 self.buffer
5704 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5705 }
5706
5707 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5708 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5709 let line_mode = s.line_mode;
5710 s.move_with(|map, selection| {
5711 let cursor = if selection.is_empty() && !line_mode {
5712 movement::left(map, selection.start)
5713 } else {
5714 selection.start
5715 };
5716 selection.collapse_to(cursor, SelectionGoal::None);
5717 });
5718 })
5719 }
5720
5721 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5723 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5724 })
5725 }
5726
5727 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5729 let line_mode = s.line_mode;
5730 s.move_with(|map, selection| {
5731 let cursor = if selection.is_empty() && !line_mode {
5732 movement::right(map, selection.end)
5733 } else {
5734 selection.end
5735 };
5736 selection.collapse_to(cursor, SelectionGoal::None)
5737 });
5738 })
5739 }
5740
5741 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5743 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5744 })
5745 }
5746
5747 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5748 if self.take_rename(true, cx).is_some() {
5749 return;
5750 }
5751
5752 if matches!(self.mode, EditorMode::SingleLine) {
5753 cx.propagate();
5754 return;
5755 }
5756
5757 let text_layout_details = &self.text_layout_details(cx);
5758
5759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5760 let line_mode = s.line_mode;
5761 s.move_with(|map, selection| {
5762 if !selection.is_empty() && !line_mode {
5763 selection.goal = SelectionGoal::None;
5764 }
5765 let (cursor, goal) = movement::up(
5766 map,
5767 selection.start,
5768 selection.goal,
5769 false,
5770 &text_layout_details,
5771 );
5772 selection.collapse_to(cursor, goal);
5773 });
5774 })
5775 }
5776
5777 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5778 if self.take_rename(true, cx).is_some() {
5779 return;
5780 }
5781
5782 if matches!(self.mode, EditorMode::SingleLine) {
5783 cx.propagate();
5784 return;
5785 }
5786
5787 let text_layout_details = &self.text_layout_details(cx);
5788
5789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5790 let line_mode = s.line_mode;
5791 s.move_with(|map, selection| {
5792 if !selection.is_empty() && !line_mode {
5793 selection.goal = SelectionGoal::None;
5794 }
5795 let (cursor, goal) = movement::up_by_rows(
5796 map,
5797 selection.start,
5798 action.lines,
5799 selection.goal,
5800 false,
5801 &text_layout_details,
5802 );
5803 selection.collapse_to(cursor, goal);
5804 });
5805 })
5806 }
5807
5808 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5809 if self.take_rename(true, cx).is_some() {
5810 return;
5811 }
5812
5813 if matches!(self.mode, EditorMode::SingleLine) {
5814 cx.propagate();
5815 return;
5816 }
5817
5818 let text_layout_details = &self.text_layout_details(cx);
5819
5820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5821 let line_mode = s.line_mode;
5822 s.move_with(|map, selection| {
5823 if !selection.is_empty() && !line_mode {
5824 selection.goal = SelectionGoal::None;
5825 }
5826 let (cursor, goal) = movement::down_by_rows(
5827 map,
5828 selection.start,
5829 action.lines,
5830 selection.goal,
5831 false,
5832 &text_layout_details,
5833 );
5834 selection.collapse_to(cursor, goal);
5835 });
5836 })
5837 }
5838
5839 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, 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::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5844 })
5845 })
5846 }
5847
5848 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5849 let text_layout_details = &self.text_layout_details(cx);
5850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 s.move_heads_with(|map, head, goal| {
5852 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5853 })
5854 })
5855 }
5856
5857 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5858 if self.take_rename(true, cx).is_some() {
5859 return;
5860 }
5861
5862 if matches!(self.mode, EditorMode::SingleLine) {
5863 cx.propagate();
5864 return;
5865 }
5866
5867 let row_count = if let Some(row_count) = self.visible_line_count() {
5868 row_count as u32 - 1
5869 } else {
5870 return;
5871 };
5872
5873 let autoscroll = if action.center_cursor {
5874 Autoscroll::center()
5875 } else {
5876 Autoscroll::fit()
5877 };
5878
5879 let text_layout_details = &self.text_layout_details(cx);
5880
5881 self.change_selections(Some(autoscroll), cx, |s| {
5882 let line_mode = s.line_mode;
5883 s.move_with(|map, selection| {
5884 if !selection.is_empty() && !line_mode {
5885 selection.goal = SelectionGoal::None;
5886 }
5887 let (cursor, goal) = movement::up_by_rows(
5888 map,
5889 selection.end,
5890 row_count,
5891 selection.goal,
5892 false,
5893 &text_layout_details,
5894 );
5895 selection.collapse_to(cursor, goal);
5896 });
5897 });
5898 }
5899
5900 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5901 let text_layout_details = &self.text_layout_details(cx);
5902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5903 s.move_heads_with(|map, head, goal| {
5904 movement::up(map, head, goal, false, &text_layout_details)
5905 })
5906 })
5907 }
5908
5909 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5910 self.take_rename(true, cx);
5911
5912 if self.mode == EditorMode::SingleLine {
5913 cx.propagate();
5914 return;
5915 }
5916
5917 let text_layout_details = &self.text_layout_details(cx);
5918 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5919 let line_mode = s.line_mode;
5920 s.move_with(|map, selection| {
5921 if !selection.is_empty() && !line_mode {
5922 selection.goal = SelectionGoal::None;
5923 }
5924 let (cursor, goal) = movement::down(
5925 map,
5926 selection.end,
5927 selection.goal,
5928 false,
5929 &text_layout_details,
5930 );
5931 selection.collapse_to(cursor, goal);
5932 });
5933 });
5934 }
5935
5936 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5937 if self.take_rename(true, cx).is_some() {
5938 return;
5939 }
5940
5941 if self
5942 .context_menu
5943 .write()
5944 .as_mut()
5945 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5946 .unwrap_or(false)
5947 {
5948 return;
5949 }
5950
5951 if matches!(self.mode, EditorMode::SingleLine) {
5952 cx.propagate();
5953 return;
5954 }
5955
5956 let row_count = if let Some(row_count) = self.visible_line_count() {
5957 row_count as u32 - 1
5958 } else {
5959 return;
5960 };
5961
5962 let autoscroll = if action.center_cursor {
5963 Autoscroll::center()
5964 } else {
5965 Autoscroll::fit()
5966 };
5967
5968 let text_layout_details = &self.text_layout_details(cx);
5969 self.change_selections(Some(autoscroll), cx, |s| {
5970 let line_mode = s.line_mode;
5971 s.move_with(|map, selection| {
5972 if !selection.is_empty() && !line_mode {
5973 selection.goal = SelectionGoal::None;
5974 }
5975 let (cursor, goal) = movement::down_by_rows(
5976 map,
5977 selection.end,
5978 row_count,
5979 selection.goal,
5980 false,
5981 &text_layout_details,
5982 );
5983 selection.collapse_to(cursor, goal);
5984 });
5985 });
5986 }
5987
5988 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5989 let text_layout_details = &self.text_layout_details(cx);
5990 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5991 s.move_heads_with(|map, head, goal| {
5992 movement::down(map, head, goal, false, &text_layout_details)
5993 })
5994 });
5995 }
5996
5997 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5998 if let Some(context_menu) = self.context_menu.write().as_mut() {
5999 context_menu.select_first(self.project.as_ref(), cx);
6000 }
6001 }
6002
6003 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6004 if let Some(context_menu) = self.context_menu.write().as_mut() {
6005 context_menu.select_prev(self.project.as_ref(), cx);
6006 }
6007 }
6008
6009 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6010 if let Some(context_menu) = self.context_menu.write().as_mut() {
6011 context_menu.select_next(self.project.as_ref(), cx);
6012 }
6013 }
6014
6015 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6016 if let Some(context_menu) = self.context_menu.write().as_mut() {
6017 context_menu.select_last(self.project.as_ref(), cx);
6018 }
6019 }
6020
6021 pub fn move_to_previous_word_start(
6022 &mut self,
6023 _: &MoveToPreviousWordStart,
6024 cx: &mut ViewContext<Self>,
6025 ) {
6026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6027 s.move_cursors_with(|map, head, _| {
6028 (
6029 movement::previous_word_start(map, head),
6030 SelectionGoal::None,
6031 )
6032 });
6033 })
6034 }
6035
6036 pub fn move_to_previous_subword_start(
6037 &mut self,
6038 _: &MoveToPreviousSubwordStart,
6039 cx: &mut ViewContext<Self>,
6040 ) {
6041 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6042 s.move_cursors_with(|map, head, _| {
6043 (
6044 movement::previous_subword_start(map, head),
6045 SelectionGoal::None,
6046 )
6047 });
6048 })
6049 }
6050
6051 pub fn select_to_previous_word_start(
6052 &mut self,
6053 _: &SelectToPreviousWordStart,
6054 cx: &mut ViewContext<Self>,
6055 ) {
6056 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6057 s.move_heads_with(|map, head, _| {
6058 (
6059 movement::previous_word_start(map, head),
6060 SelectionGoal::None,
6061 )
6062 });
6063 })
6064 }
6065
6066 pub fn select_to_previous_subword_start(
6067 &mut self,
6068 _: &SelectToPreviousSubwordStart,
6069 cx: &mut ViewContext<Self>,
6070 ) {
6071 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6072 s.move_heads_with(|map, head, _| {
6073 (
6074 movement::previous_subword_start(map, head),
6075 SelectionGoal::None,
6076 )
6077 });
6078 })
6079 }
6080
6081 pub fn delete_to_previous_word_start(
6082 &mut self,
6083 _: &DeleteToPreviousWordStart,
6084 cx: &mut ViewContext<Self>,
6085 ) {
6086 self.transact(cx, |this, cx| {
6087 this.select_autoclose_pair(cx);
6088 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6089 let line_mode = s.line_mode;
6090 s.move_with(|map, selection| {
6091 if selection.is_empty() && !line_mode {
6092 let cursor = movement::previous_word_start(map, selection.head());
6093 selection.set_head(cursor, SelectionGoal::None);
6094 }
6095 });
6096 });
6097 this.insert("", cx);
6098 });
6099 }
6100
6101 pub fn delete_to_previous_subword_start(
6102 &mut self,
6103 _: &DeleteToPreviousSubwordStart,
6104 cx: &mut ViewContext<Self>,
6105 ) {
6106 self.transact(cx, |this, cx| {
6107 this.select_autoclose_pair(cx);
6108 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6109 let line_mode = s.line_mode;
6110 s.move_with(|map, selection| {
6111 if selection.is_empty() && !line_mode {
6112 let cursor = movement::previous_subword_start(map, selection.head());
6113 selection.set_head(cursor, SelectionGoal::None);
6114 }
6115 });
6116 });
6117 this.insert("", cx);
6118 });
6119 }
6120
6121 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6123 s.move_cursors_with(|map, head, _| {
6124 (movement::next_word_end(map, head), SelectionGoal::None)
6125 });
6126 })
6127 }
6128
6129 pub fn move_to_next_subword_end(
6130 &mut self,
6131 _: &MoveToNextSubwordEnd,
6132 cx: &mut ViewContext<Self>,
6133 ) {
6134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6135 s.move_cursors_with(|map, head, _| {
6136 (movement::next_subword_end(map, head), SelectionGoal::None)
6137 });
6138 })
6139 }
6140
6141 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6143 s.move_heads_with(|map, head, _| {
6144 (movement::next_word_end(map, head), SelectionGoal::None)
6145 });
6146 })
6147 }
6148
6149 pub fn select_to_next_subword_end(
6150 &mut self,
6151 _: &SelectToNextSubwordEnd,
6152 cx: &mut ViewContext<Self>,
6153 ) {
6154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.move_heads_with(|map, head, _| {
6156 (movement::next_subword_end(map, head), SelectionGoal::None)
6157 });
6158 })
6159 }
6160
6161 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6162 self.transact(cx, |this, cx| {
6163 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6164 let line_mode = s.line_mode;
6165 s.move_with(|map, selection| {
6166 if selection.is_empty() && !line_mode {
6167 let cursor = movement::next_word_end(map, selection.head());
6168 selection.set_head(cursor, SelectionGoal::None);
6169 }
6170 });
6171 });
6172 this.insert("", cx);
6173 });
6174 }
6175
6176 pub fn delete_to_next_subword_end(
6177 &mut self,
6178 _: &DeleteToNextSubwordEnd,
6179 cx: &mut ViewContext<Self>,
6180 ) {
6181 self.transact(cx, |this, cx| {
6182 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6183 s.move_with(|map, selection| {
6184 if selection.is_empty() {
6185 let cursor = movement::next_subword_end(map, selection.head());
6186 selection.set_head(cursor, SelectionGoal::None);
6187 }
6188 });
6189 });
6190 this.insert("", cx);
6191 });
6192 }
6193
6194 pub fn move_to_beginning_of_line(
6195 &mut self,
6196 _: &MoveToBeginningOfLine,
6197 cx: &mut ViewContext<Self>,
6198 ) {
6199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6200 s.move_cursors_with(|map, head, _| {
6201 (
6202 movement::indented_line_beginning(map, head, true),
6203 SelectionGoal::None,
6204 )
6205 });
6206 })
6207 }
6208
6209 pub fn select_to_beginning_of_line(
6210 &mut self,
6211 action: &SelectToBeginningOfLine,
6212 cx: &mut ViewContext<Self>,
6213 ) {
6214 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6215 s.move_heads_with(|map, head, _| {
6216 (
6217 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6218 SelectionGoal::None,
6219 )
6220 });
6221 });
6222 }
6223
6224 pub fn delete_to_beginning_of_line(
6225 &mut self,
6226 _: &DeleteToBeginningOfLine,
6227 cx: &mut ViewContext<Self>,
6228 ) {
6229 self.transact(cx, |this, cx| {
6230 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6231 s.move_with(|_, selection| {
6232 selection.reversed = true;
6233 });
6234 });
6235
6236 this.select_to_beginning_of_line(
6237 &SelectToBeginningOfLine {
6238 stop_at_soft_wraps: false,
6239 },
6240 cx,
6241 );
6242 this.backspace(&Backspace, cx);
6243 });
6244 }
6245
6246 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6247 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6248 s.move_cursors_with(|map, head, _| {
6249 (movement::line_end(map, head, true), SelectionGoal::None)
6250 });
6251 })
6252 }
6253
6254 pub fn select_to_end_of_line(
6255 &mut self,
6256 action: &SelectToEndOfLine,
6257 cx: &mut ViewContext<Self>,
6258 ) {
6259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6260 s.move_heads_with(|map, head, _| {
6261 (
6262 movement::line_end(map, head, action.stop_at_soft_wraps),
6263 SelectionGoal::None,
6264 )
6265 });
6266 })
6267 }
6268
6269 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6270 self.transact(cx, |this, cx| {
6271 this.select_to_end_of_line(
6272 &SelectToEndOfLine {
6273 stop_at_soft_wraps: false,
6274 },
6275 cx,
6276 );
6277 this.delete(&Delete, cx);
6278 });
6279 }
6280
6281 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6282 self.transact(cx, |this, cx| {
6283 this.select_to_end_of_line(
6284 &SelectToEndOfLine {
6285 stop_at_soft_wraps: false,
6286 },
6287 cx,
6288 );
6289 this.cut(&Cut, cx);
6290 });
6291 }
6292
6293 pub fn move_to_start_of_paragraph(
6294 &mut self,
6295 _: &MoveToStartOfParagraph,
6296 cx: &mut ViewContext<Self>,
6297 ) {
6298 if matches!(self.mode, EditorMode::SingleLine) {
6299 cx.propagate();
6300 return;
6301 }
6302
6303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6304 s.move_with(|map, selection| {
6305 selection.collapse_to(
6306 movement::start_of_paragraph(map, selection.head(), 1),
6307 SelectionGoal::None,
6308 )
6309 });
6310 })
6311 }
6312
6313 pub fn move_to_end_of_paragraph(
6314 &mut self,
6315 _: &MoveToEndOfParagraph,
6316 cx: &mut ViewContext<Self>,
6317 ) {
6318 if matches!(self.mode, EditorMode::SingleLine) {
6319 cx.propagate();
6320 return;
6321 }
6322
6323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6324 s.move_with(|map, selection| {
6325 selection.collapse_to(
6326 movement::end_of_paragraph(map, selection.head(), 1),
6327 SelectionGoal::None,
6328 )
6329 });
6330 })
6331 }
6332
6333 pub fn select_to_start_of_paragraph(
6334 &mut self,
6335 _: &SelectToStartOfParagraph,
6336 cx: &mut ViewContext<Self>,
6337 ) {
6338 if matches!(self.mode, EditorMode::SingleLine) {
6339 cx.propagate();
6340 return;
6341 }
6342
6343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6344 s.move_heads_with(|map, head, _| {
6345 (
6346 movement::start_of_paragraph(map, head, 1),
6347 SelectionGoal::None,
6348 )
6349 });
6350 })
6351 }
6352
6353 pub fn select_to_end_of_paragraph(
6354 &mut self,
6355 _: &SelectToEndOfParagraph,
6356 cx: &mut ViewContext<Self>,
6357 ) {
6358 if matches!(self.mode, EditorMode::SingleLine) {
6359 cx.propagate();
6360 return;
6361 }
6362
6363 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6364 s.move_heads_with(|map, head, _| {
6365 (
6366 movement::end_of_paragraph(map, head, 1),
6367 SelectionGoal::None,
6368 )
6369 });
6370 })
6371 }
6372
6373 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6374 if matches!(self.mode, EditorMode::SingleLine) {
6375 cx.propagate();
6376 return;
6377 }
6378
6379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6380 s.select_ranges(vec![0..0]);
6381 });
6382 }
6383
6384 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6385 let mut selection = self.selections.last::<Point>(cx);
6386 selection.set_head(Point::zero(), SelectionGoal::None);
6387
6388 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6389 s.select(vec![selection]);
6390 });
6391 }
6392
6393 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6394 if matches!(self.mode, EditorMode::SingleLine) {
6395 cx.propagate();
6396 return;
6397 }
6398
6399 let cursor = self.buffer.read(cx).read(cx).len();
6400 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6401 s.select_ranges(vec![cursor..cursor])
6402 });
6403 }
6404
6405 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6406 self.nav_history = nav_history;
6407 }
6408
6409 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6410 self.nav_history.as_ref()
6411 }
6412
6413 fn push_to_nav_history(
6414 &mut self,
6415 cursor_anchor: Anchor,
6416 new_position: Option<Point>,
6417 cx: &mut ViewContext<Self>,
6418 ) {
6419 if let Some(nav_history) = self.nav_history.as_mut() {
6420 let buffer = self.buffer.read(cx).read(cx);
6421 let cursor_position = cursor_anchor.to_point(&buffer);
6422 let scroll_state = self.scroll_manager.anchor();
6423 let scroll_top_row = scroll_state.top_row(&buffer);
6424 drop(buffer);
6425
6426 if let Some(new_position) = new_position {
6427 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6428 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6429 return;
6430 }
6431 }
6432
6433 nav_history.push(
6434 Some(NavigationData {
6435 cursor_anchor,
6436 cursor_position,
6437 scroll_anchor: scroll_state,
6438 scroll_top_row,
6439 }),
6440 cx,
6441 );
6442 }
6443 }
6444
6445 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6446 let buffer = self.buffer.read(cx).snapshot(cx);
6447 let mut selection = self.selections.first::<usize>(cx);
6448 selection.set_head(buffer.len(), SelectionGoal::None);
6449 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6450 s.select(vec![selection]);
6451 });
6452 }
6453
6454 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6455 let end = self.buffer.read(cx).read(cx).len();
6456 self.change_selections(None, cx, |s| {
6457 s.select_ranges(vec![0..end]);
6458 });
6459 }
6460
6461 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6462 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6463 let mut selections = self.selections.all::<Point>(cx);
6464 let max_point = display_map.buffer_snapshot.max_point();
6465 for selection in &mut selections {
6466 let rows = selection.spanned_rows(true, &display_map);
6467 selection.start = Point::new(rows.start, 0);
6468 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6469 selection.reversed = false;
6470 }
6471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6472 s.select(selections);
6473 });
6474 }
6475
6476 pub fn split_selection_into_lines(
6477 &mut self,
6478 _: &SplitSelectionIntoLines,
6479 cx: &mut ViewContext<Self>,
6480 ) {
6481 let mut to_unfold = Vec::new();
6482 let mut new_selection_ranges = Vec::new();
6483 {
6484 let selections = self.selections.all::<Point>(cx);
6485 let buffer = self.buffer.read(cx).read(cx);
6486 for selection in selections {
6487 for row in selection.start.row..selection.end.row {
6488 let cursor = Point::new(row, buffer.line_len(row));
6489 new_selection_ranges.push(cursor..cursor);
6490 }
6491 new_selection_ranges.push(selection.end..selection.end);
6492 to_unfold.push(selection.start..selection.end);
6493 }
6494 }
6495 self.unfold_ranges(to_unfold, true, true, cx);
6496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6497 s.select_ranges(new_selection_ranges);
6498 });
6499 }
6500
6501 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6502 self.add_selection(true, cx);
6503 }
6504
6505 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6506 self.add_selection(false, cx);
6507 }
6508
6509 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6510 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6511 let mut selections = self.selections.all::<Point>(cx);
6512 let text_layout_details = self.text_layout_details(cx);
6513 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6514 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6515 let range = oldest_selection.display_range(&display_map).sorted();
6516
6517 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6518 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6519 let positions = start_x.min(end_x)..start_x.max(end_x);
6520
6521 selections.clear();
6522 let mut stack = Vec::new();
6523 for row in range.start.row()..=range.end.row() {
6524 if let Some(selection) = self.selections.build_columnar_selection(
6525 &display_map,
6526 row,
6527 &positions,
6528 oldest_selection.reversed,
6529 &text_layout_details,
6530 ) {
6531 stack.push(selection.id);
6532 selections.push(selection);
6533 }
6534 }
6535
6536 if above {
6537 stack.reverse();
6538 }
6539
6540 AddSelectionsState { above, stack }
6541 });
6542
6543 let last_added_selection = *state.stack.last().unwrap();
6544 let mut new_selections = Vec::new();
6545 if above == state.above {
6546 let end_row = if above {
6547 0
6548 } else {
6549 display_map.max_point().row()
6550 };
6551
6552 'outer: for selection in selections {
6553 if selection.id == last_added_selection {
6554 let range = selection.display_range(&display_map).sorted();
6555 debug_assert_eq!(range.start.row(), range.end.row());
6556 let mut row = range.start.row();
6557 let positions =
6558 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6559 px(start)..px(end)
6560 } else {
6561 let start_x =
6562 display_map.x_for_display_point(range.start, &text_layout_details);
6563 let end_x =
6564 display_map.x_for_display_point(range.end, &text_layout_details);
6565 start_x.min(end_x)..start_x.max(end_x)
6566 };
6567
6568 while row != end_row {
6569 if above {
6570 row -= 1;
6571 } else {
6572 row += 1;
6573 }
6574
6575 if let Some(new_selection) = self.selections.build_columnar_selection(
6576 &display_map,
6577 row,
6578 &positions,
6579 selection.reversed,
6580 &text_layout_details,
6581 ) {
6582 state.stack.push(new_selection.id);
6583 if above {
6584 new_selections.push(new_selection);
6585 new_selections.push(selection);
6586 } else {
6587 new_selections.push(selection);
6588 new_selections.push(new_selection);
6589 }
6590
6591 continue 'outer;
6592 }
6593 }
6594 }
6595
6596 new_selections.push(selection);
6597 }
6598 } else {
6599 new_selections = selections;
6600 new_selections.retain(|s| s.id != last_added_selection);
6601 state.stack.pop();
6602 }
6603
6604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6605 s.select(new_selections);
6606 });
6607 if state.stack.len() > 1 {
6608 self.add_selections_state = Some(state);
6609 }
6610 }
6611
6612 pub fn select_next_match_internal(
6613 &mut self,
6614 display_map: &DisplaySnapshot,
6615 replace_newest: bool,
6616 autoscroll: Option<Autoscroll>,
6617 cx: &mut ViewContext<Self>,
6618 ) -> Result<()> {
6619 fn select_next_match_ranges(
6620 this: &mut Editor,
6621 range: Range<usize>,
6622 replace_newest: bool,
6623 auto_scroll: Option<Autoscroll>,
6624 cx: &mut ViewContext<Editor>,
6625 ) {
6626 this.unfold_ranges([range.clone()], false, true, cx);
6627 this.change_selections(auto_scroll, cx, |s| {
6628 if replace_newest {
6629 s.delete(s.newest_anchor().id);
6630 }
6631 s.insert_range(range.clone());
6632 });
6633 }
6634
6635 let buffer = &display_map.buffer_snapshot;
6636 let mut selections = self.selections.all::<usize>(cx);
6637 if let Some(mut select_next_state) = self.select_next_state.take() {
6638 let query = &select_next_state.query;
6639 if !select_next_state.done {
6640 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6641 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6642 let mut next_selected_range = None;
6643
6644 let bytes_after_last_selection =
6645 buffer.bytes_in_range(last_selection.end..buffer.len());
6646 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6647 let query_matches = query
6648 .stream_find_iter(bytes_after_last_selection)
6649 .map(|result| (last_selection.end, result))
6650 .chain(
6651 query
6652 .stream_find_iter(bytes_before_first_selection)
6653 .map(|result| (0, result)),
6654 );
6655
6656 for (start_offset, query_match) in query_matches {
6657 let query_match = query_match.unwrap(); // can only fail due to I/O
6658 let offset_range =
6659 start_offset + query_match.start()..start_offset + query_match.end();
6660 let display_range = offset_range.start.to_display_point(&display_map)
6661 ..offset_range.end.to_display_point(&display_map);
6662
6663 if !select_next_state.wordwise
6664 || (!movement::is_inside_word(&display_map, display_range.start)
6665 && !movement::is_inside_word(&display_map, display_range.end))
6666 {
6667 // TODO: This is n^2, because we might check all the selections
6668 if !selections
6669 .iter()
6670 .any(|selection| selection.range().overlaps(&offset_range))
6671 {
6672 next_selected_range = Some(offset_range);
6673 break;
6674 }
6675 }
6676 }
6677
6678 if let Some(next_selected_range) = next_selected_range {
6679 select_next_match_ranges(
6680 self,
6681 next_selected_range,
6682 replace_newest,
6683 autoscroll,
6684 cx,
6685 );
6686 } else {
6687 select_next_state.done = true;
6688 }
6689 }
6690
6691 self.select_next_state = Some(select_next_state);
6692 } else {
6693 let mut only_carets = true;
6694 let mut same_text_selected = true;
6695 let mut selected_text = None;
6696
6697 let mut selections_iter = selections.iter().peekable();
6698 while let Some(selection) = selections_iter.next() {
6699 if selection.start != selection.end {
6700 only_carets = false;
6701 }
6702
6703 if same_text_selected {
6704 if selected_text.is_none() {
6705 selected_text =
6706 Some(buffer.text_for_range(selection.range()).collect::<String>());
6707 }
6708
6709 if let Some(next_selection) = selections_iter.peek() {
6710 if next_selection.range().len() == selection.range().len() {
6711 let next_selected_text = buffer
6712 .text_for_range(next_selection.range())
6713 .collect::<String>();
6714 if Some(next_selected_text) != selected_text {
6715 same_text_selected = false;
6716 selected_text = None;
6717 }
6718 } else {
6719 same_text_selected = false;
6720 selected_text = None;
6721 }
6722 }
6723 }
6724 }
6725
6726 if only_carets {
6727 for selection in &mut selections {
6728 let word_range = movement::surrounding_word(
6729 &display_map,
6730 selection.start.to_display_point(&display_map),
6731 );
6732 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6733 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6734 selection.goal = SelectionGoal::None;
6735 selection.reversed = false;
6736 select_next_match_ranges(
6737 self,
6738 selection.start..selection.end,
6739 replace_newest,
6740 autoscroll,
6741 cx,
6742 );
6743 }
6744
6745 if selections.len() == 1 {
6746 let selection = selections
6747 .last()
6748 .expect("ensured that there's only one selection");
6749 let query = buffer
6750 .text_for_range(selection.start..selection.end)
6751 .collect::<String>();
6752 let is_empty = query.is_empty();
6753 let select_state = SelectNextState {
6754 query: AhoCorasick::new(&[query])?,
6755 wordwise: true,
6756 done: is_empty,
6757 };
6758 self.select_next_state = Some(select_state);
6759 } else {
6760 self.select_next_state = None;
6761 }
6762 } else if let Some(selected_text) = selected_text {
6763 self.select_next_state = Some(SelectNextState {
6764 query: AhoCorasick::new(&[selected_text])?,
6765 wordwise: false,
6766 done: false,
6767 });
6768 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6769 }
6770 }
6771 Ok(())
6772 }
6773
6774 pub fn select_all_matches(
6775 &mut self,
6776 _action: &SelectAllMatches,
6777 cx: &mut ViewContext<Self>,
6778 ) -> Result<()> {
6779 self.push_to_selection_history();
6780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6781
6782 self.select_next_match_internal(&display_map, false, None, cx)?;
6783 let Some(select_next_state) = self.select_next_state.as_mut() else {
6784 return Ok(());
6785 };
6786 if select_next_state.done {
6787 return Ok(());
6788 }
6789
6790 let mut new_selections = self.selections.all::<usize>(cx);
6791
6792 let buffer = &display_map.buffer_snapshot;
6793 let query_matches = select_next_state
6794 .query
6795 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6796
6797 for query_match in query_matches {
6798 let query_match = query_match.unwrap(); // can only fail due to I/O
6799 let offset_range = query_match.start()..query_match.end();
6800 let display_range = offset_range.start.to_display_point(&display_map)
6801 ..offset_range.end.to_display_point(&display_map);
6802
6803 if !select_next_state.wordwise
6804 || (!movement::is_inside_word(&display_map, display_range.start)
6805 && !movement::is_inside_word(&display_map, display_range.end))
6806 {
6807 self.selections.change_with(cx, |selections| {
6808 new_selections.push(Selection {
6809 id: selections.new_selection_id(),
6810 start: offset_range.start,
6811 end: offset_range.end,
6812 reversed: false,
6813 goal: SelectionGoal::None,
6814 });
6815 });
6816 }
6817 }
6818
6819 new_selections.sort_by_key(|selection| selection.start);
6820 let mut ix = 0;
6821 while ix + 1 < new_selections.len() {
6822 let current_selection = &new_selections[ix];
6823 let next_selection = &new_selections[ix + 1];
6824 if current_selection.range().overlaps(&next_selection.range()) {
6825 if current_selection.id < next_selection.id {
6826 new_selections.remove(ix + 1);
6827 } else {
6828 new_selections.remove(ix);
6829 }
6830 } else {
6831 ix += 1;
6832 }
6833 }
6834
6835 select_next_state.done = true;
6836 self.unfold_ranges(
6837 new_selections.iter().map(|selection| selection.range()),
6838 false,
6839 false,
6840 cx,
6841 );
6842 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6843 selections.select(new_selections)
6844 });
6845
6846 Ok(())
6847 }
6848
6849 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6850 self.push_to_selection_history();
6851 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6852 self.select_next_match_internal(
6853 &display_map,
6854 action.replace_newest,
6855 Some(Autoscroll::newest()),
6856 cx,
6857 )?;
6858 Ok(())
6859 }
6860
6861 pub fn select_previous(
6862 &mut self,
6863 action: &SelectPrevious,
6864 cx: &mut ViewContext<Self>,
6865 ) -> Result<()> {
6866 self.push_to_selection_history();
6867 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6868 let buffer = &display_map.buffer_snapshot;
6869 let mut selections = self.selections.all::<usize>(cx);
6870 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6871 let query = &select_prev_state.query;
6872 if !select_prev_state.done {
6873 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6874 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6875 let mut next_selected_range = None;
6876 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6877 let bytes_before_last_selection =
6878 buffer.reversed_bytes_in_range(0..last_selection.start);
6879 let bytes_after_first_selection =
6880 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6881 let query_matches = query
6882 .stream_find_iter(bytes_before_last_selection)
6883 .map(|result| (last_selection.start, result))
6884 .chain(
6885 query
6886 .stream_find_iter(bytes_after_first_selection)
6887 .map(|result| (buffer.len(), result)),
6888 );
6889 for (end_offset, query_match) in query_matches {
6890 let query_match = query_match.unwrap(); // can only fail due to I/O
6891 let offset_range =
6892 end_offset - query_match.end()..end_offset - query_match.start();
6893 let display_range = offset_range.start.to_display_point(&display_map)
6894 ..offset_range.end.to_display_point(&display_map);
6895
6896 if !select_prev_state.wordwise
6897 || (!movement::is_inside_word(&display_map, display_range.start)
6898 && !movement::is_inside_word(&display_map, display_range.end))
6899 {
6900 next_selected_range = Some(offset_range);
6901 break;
6902 }
6903 }
6904
6905 if let Some(next_selected_range) = next_selected_range {
6906 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6907 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6908 if action.replace_newest {
6909 s.delete(s.newest_anchor().id);
6910 }
6911 s.insert_range(next_selected_range);
6912 });
6913 } else {
6914 select_prev_state.done = true;
6915 }
6916 }
6917
6918 self.select_prev_state = Some(select_prev_state);
6919 } else {
6920 let mut only_carets = true;
6921 let mut same_text_selected = true;
6922 let mut selected_text = None;
6923
6924 let mut selections_iter = selections.iter().peekable();
6925 while let Some(selection) = selections_iter.next() {
6926 if selection.start != selection.end {
6927 only_carets = false;
6928 }
6929
6930 if same_text_selected {
6931 if selected_text.is_none() {
6932 selected_text =
6933 Some(buffer.text_for_range(selection.range()).collect::<String>());
6934 }
6935
6936 if let Some(next_selection) = selections_iter.peek() {
6937 if next_selection.range().len() == selection.range().len() {
6938 let next_selected_text = buffer
6939 .text_for_range(next_selection.range())
6940 .collect::<String>();
6941 if Some(next_selected_text) != selected_text {
6942 same_text_selected = false;
6943 selected_text = None;
6944 }
6945 } else {
6946 same_text_selected = false;
6947 selected_text = None;
6948 }
6949 }
6950 }
6951 }
6952
6953 if only_carets {
6954 for selection in &mut selections {
6955 let word_range = movement::surrounding_word(
6956 &display_map,
6957 selection.start.to_display_point(&display_map),
6958 );
6959 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6960 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6961 selection.goal = SelectionGoal::None;
6962 selection.reversed = false;
6963 }
6964 if selections.len() == 1 {
6965 let selection = selections
6966 .last()
6967 .expect("ensured that there's only one selection");
6968 let query = buffer
6969 .text_for_range(selection.start..selection.end)
6970 .collect::<String>();
6971 let is_empty = query.is_empty();
6972 let select_state = SelectNextState {
6973 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6974 wordwise: true,
6975 done: is_empty,
6976 };
6977 self.select_prev_state = Some(select_state);
6978 } else {
6979 self.select_prev_state = None;
6980 }
6981
6982 self.unfold_ranges(
6983 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6984 false,
6985 true,
6986 cx,
6987 );
6988 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6989 s.select(selections);
6990 });
6991 } else if let Some(selected_text) = selected_text {
6992 self.select_prev_state = Some(SelectNextState {
6993 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6994 wordwise: false,
6995 done: false,
6996 });
6997 self.select_previous(action, cx)?;
6998 }
6999 }
7000 Ok(())
7001 }
7002
7003 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7004 let text_layout_details = &self.text_layout_details(cx);
7005 self.transact(cx, |this, cx| {
7006 let mut selections = this.selections.all::<Point>(cx);
7007 let mut edits = Vec::new();
7008 let mut selection_edit_ranges = Vec::new();
7009 let mut last_toggled_row = None;
7010 let snapshot = this.buffer.read(cx).read(cx);
7011 let empty_str: Arc<str> = "".into();
7012 let mut suffixes_inserted = Vec::new();
7013
7014 fn comment_prefix_range(
7015 snapshot: &MultiBufferSnapshot,
7016 row: u32,
7017 comment_prefix: &str,
7018 comment_prefix_whitespace: &str,
7019 ) -> Range<Point> {
7020 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7021
7022 let mut line_bytes = snapshot
7023 .bytes_in_range(start..snapshot.max_point())
7024 .flatten()
7025 .copied();
7026
7027 // If this line currently begins with the line comment prefix, then record
7028 // the range containing the prefix.
7029 if line_bytes
7030 .by_ref()
7031 .take(comment_prefix.len())
7032 .eq(comment_prefix.bytes())
7033 {
7034 // Include any whitespace that matches the comment prefix.
7035 let matching_whitespace_len = line_bytes
7036 .zip(comment_prefix_whitespace.bytes())
7037 .take_while(|(a, b)| a == b)
7038 .count() as u32;
7039 let end = Point::new(
7040 start.row,
7041 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7042 );
7043 start..end
7044 } else {
7045 start..start
7046 }
7047 }
7048
7049 fn comment_suffix_range(
7050 snapshot: &MultiBufferSnapshot,
7051 row: u32,
7052 comment_suffix: &str,
7053 comment_suffix_has_leading_space: bool,
7054 ) -> Range<Point> {
7055 let end = Point::new(row, snapshot.line_len(row));
7056 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7057
7058 let mut line_end_bytes = snapshot
7059 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7060 .flatten()
7061 .copied();
7062
7063 let leading_space_len = if suffix_start_column > 0
7064 && line_end_bytes.next() == Some(b' ')
7065 && comment_suffix_has_leading_space
7066 {
7067 1
7068 } else {
7069 0
7070 };
7071
7072 // If this line currently begins with the line comment prefix, then record
7073 // the range containing the prefix.
7074 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7075 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7076 start..end
7077 } else {
7078 end..end
7079 }
7080 }
7081
7082 // TODO: Handle selections that cross excerpts
7083 for selection in &mut selections {
7084 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7085 let language = if let Some(language) =
7086 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7087 {
7088 language
7089 } else {
7090 continue;
7091 };
7092
7093 selection_edit_ranges.clear();
7094
7095 // If multiple selections contain a given row, avoid processing that
7096 // row more than once.
7097 let mut start_row = selection.start.row;
7098 if last_toggled_row == Some(start_row) {
7099 start_row += 1;
7100 }
7101 let end_row =
7102 if selection.end.row > selection.start.row && selection.end.column == 0 {
7103 selection.end.row - 1
7104 } else {
7105 selection.end.row
7106 };
7107 last_toggled_row = Some(end_row);
7108
7109 if start_row > end_row {
7110 continue;
7111 }
7112
7113 // If the language has line comments, toggle those.
7114 if let Some(full_comment_prefix) = language
7115 .line_comment_prefixes()
7116 .and_then(|prefixes| prefixes.first())
7117 {
7118 // Split the comment prefix's trailing whitespace into a separate string,
7119 // as that portion won't be used for detecting if a line is a comment.
7120 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7121 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7122 let mut all_selection_lines_are_comments = true;
7123
7124 for row in start_row..=end_row {
7125 if start_row < end_row && snapshot.is_line_blank(row) {
7126 continue;
7127 }
7128
7129 let prefix_range = comment_prefix_range(
7130 snapshot.deref(),
7131 row,
7132 comment_prefix,
7133 comment_prefix_whitespace,
7134 );
7135 if prefix_range.is_empty() {
7136 all_selection_lines_are_comments = false;
7137 }
7138 selection_edit_ranges.push(prefix_range);
7139 }
7140
7141 if all_selection_lines_are_comments {
7142 edits.extend(
7143 selection_edit_ranges
7144 .iter()
7145 .cloned()
7146 .map(|range| (range, empty_str.clone())),
7147 );
7148 } else {
7149 let min_column = selection_edit_ranges
7150 .iter()
7151 .map(|r| r.start.column)
7152 .min()
7153 .unwrap_or(0);
7154 edits.extend(selection_edit_ranges.iter().map(|range| {
7155 let position = Point::new(range.start.row, min_column);
7156 (position..position, full_comment_prefix.clone())
7157 }));
7158 }
7159 } else if let Some((full_comment_prefix, comment_suffix)) =
7160 language.block_comment_delimiters()
7161 {
7162 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7163 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7164 let prefix_range = comment_prefix_range(
7165 snapshot.deref(),
7166 start_row,
7167 comment_prefix,
7168 comment_prefix_whitespace,
7169 );
7170 let suffix_range = comment_suffix_range(
7171 snapshot.deref(),
7172 end_row,
7173 comment_suffix.trim_start_matches(' '),
7174 comment_suffix.starts_with(' '),
7175 );
7176
7177 if prefix_range.is_empty() || suffix_range.is_empty() {
7178 edits.push((
7179 prefix_range.start..prefix_range.start,
7180 full_comment_prefix.clone(),
7181 ));
7182 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7183 suffixes_inserted.push((end_row, comment_suffix.len()));
7184 } else {
7185 edits.push((prefix_range, empty_str.clone()));
7186 edits.push((suffix_range, empty_str.clone()));
7187 }
7188 } else {
7189 continue;
7190 }
7191 }
7192
7193 drop(snapshot);
7194 this.buffer.update(cx, |buffer, cx| {
7195 buffer.edit(edits, None, cx);
7196 });
7197
7198 // Adjust selections so that they end before any comment suffixes that
7199 // were inserted.
7200 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7201 let mut selections = this.selections.all::<Point>(cx);
7202 let snapshot = this.buffer.read(cx).read(cx);
7203 for selection in &mut selections {
7204 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7205 match row.cmp(&selection.end.row) {
7206 Ordering::Less => {
7207 suffixes_inserted.next();
7208 continue;
7209 }
7210 Ordering::Greater => break,
7211 Ordering::Equal => {
7212 if selection.end.column == snapshot.line_len(row) {
7213 if selection.is_empty() {
7214 selection.start.column -= suffix_len as u32;
7215 }
7216 selection.end.column -= suffix_len as u32;
7217 }
7218 break;
7219 }
7220 }
7221 }
7222 }
7223
7224 drop(snapshot);
7225 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7226
7227 let selections = this.selections.all::<Point>(cx);
7228 let selections_on_single_row = selections.windows(2).all(|selections| {
7229 selections[0].start.row == selections[1].start.row
7230 && selections[0].end.row == selections[1].end.row
7231 && selections[0].start.row == selections[0].end.row
7232 });
7233 let selections_selecting = selections
7234 .iter()
7235 .any(|selection| selection.start != selection.end);
7236 let advance_downwards = action.advance_downwards
7237 && selections_on_single_row
7238 && !selections_selecting
7239 && this.mode != EditorMode::SingleLine;
7240
7241 if advance_downwards {
7242 let snapshot = this.buffer.read(cx).snapshot(cx);
7243
7244 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7245 s.move_cursors_with(|display_snapshot, display_point, _| {
7246 let mut point = display_point.to_point(display_snapshot);
7247 point.row += 1;
7248 point = snapshot.clip_point(point, Bias::Left);
7249 let display_point = point.to_display_point(display_snapshot);
7250 let goal = SelectionGoal::HorizontalPosition(
7251 display_snapshot
7252 .x_for_display_point(display_point, &text_layout_details)
7253 .into(),
7254 );
7255 (display_point, goal)
7256 })
7257 });
7258 }
7259 });
7260 }
7261
7262 pub fn select_larger_syntax_node(
7263 &mut self,
7264 _: &SelectLargerSyntaxNode,
7265 cx: &mut ViewContext<Self>,
7266 ) {
7267 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7268 let buffer = self.buffer.read(cx).snapshot(cx);
7269 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7270
7271 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7272 let mut selected_larger_node = false;
7273 let new_selections = old_selections
7274 .iter()
7275 .map(|selection| {
7276 let old_range = selection.start..selection.end;
7277 let mut new_range = old_range.clone();
7278 while let Some(containing_range) =
7279 buffer.range_for_syntax_ancestor(new_range.clone())
7280 {
7281 new_range = containing_range;
7282 if !display_map.intersects_fold(new_range.start)
7283 && !display_map.intersects_fold(new_range.end)
7284 {
7285 break;
7286 }
7287 }
7288
7289 selected_larger_node |= new_range != old_range;
7290 Selection {
7291 id: selection.id,
7292 start: new_range.start,
7293 end: new_range.end,
7294 goal: SelectionGoal::None,
7295 reversed: selection.reversed,
7296 }
7297 })
7298 .collect::<Vec<_>>();
7299
7300 if selected_larger_node {
7301 stack.push(old_selections);
7302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7303 s.select(new_selections);
7304 });
7305 }
7306 self.select_larger_syntax_node_stack = stack;
7307 }
7308
7309 pub fn select_smaller_syntax_node(
7310 &mut self,
7311 _: &SelectSmallerSyntaxNode,
7312 cx: &mut ViewContext<Self>,
7313 ) {
7314 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7315 if let Some(selections) = stack.pop() {
7316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7317 s.select(selections.to_vec());
7318 });
7319 }
7320 self.select_larger_syntax_node_stack = stack;
7321 }
7322
7323 pub fn move_to_enclosing_bracket(
7324 &mut self,
7325 _: &MoveToEnclosingBracket,
7326 cx: &mut ViewContext<Self>,
7327 ) {
7328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7329 s.move_offsets_with(|snapshot, selection| {
7330 let Some(enclosing_bracket_ranges) =
7331 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7332 else {
7333 return;
7334 };
7335
7336 let mut best_length = usize::MAX;
7337 let mut best_inside = false;
7338 let mut best_in_bracket_range = false;
7339 let mut best_destination = None;
7340 for (open, close) in enclosing_bracket_ranges {
7341 let close = close.to_inclusive();
7342 let length = close.end() - open.start;
7343 let inside = selection.start >= open.end && selection.end <= *close.start();
7344 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7345 || close.contains(&selection.head());
7346
7347 // If best is next to a bracket and current isn't, skip
7348 if !in_bracket_range && best_in_bracket_range {
7349 continue;
7350 }
7351
7352 // Prefer smaller lengths unless best is inside and current isn't
7353 if length > best_length && (best_inside || !inside) {
7354 continue;
7355 }
7356
7357 best_length = length;
7358 best_inside = inside;
7359 best_in_bracket_range = in_bracket_range;
7360 best_destination = Some(
7361 if close.contains(&selection.start) && close.contains(&selection.end) {
7362 if inside {
7363 open.end
7364 } else {
7365 open.start
7366 }
7367 } else {
7368 if inside {
7369 *close.start()
7370 } else {
7371 *close.end()
7372 }
7373 },
7374 );
7375 }
7376
7377 if let Some(destination) = best_destination {
7378 selection.collapse_to(destination, SelectionGoal::None);
7379 }
7380 })
7381 });
7382 }
7383
7384 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7385 self.end_selection(cx);
7386 self.selection_history.mode = SelectionHistoryMode::Undoing;
7387 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7388 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7389 self.select_next_state = entry.select_next_state;
7390 self.select_prev_state = entry.select_prev_state;
7391 self.add_selections_state = entry.add_selections_state;
7392 self.request_autoscroll(Autoscroll::newest(), cx);
7393 }
7394 self.selection_history.mode = SelectionHistoryMode::Normal;
7395 }
7396
7397 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7398 self.end_selection(cx);
7399 self.selection_history.mode = SelectionHistoryMode::Redoing;
7400 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7401 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7402 self.select_next_state = entry.select_next_state;
7403 self.select_prev_state = entry.select_prev_state;
7404 self.add_selections_state = entry.add_selections_state;
7405 self.request_autoscroll(Autoscroll::newest(), cx);
7406 }
7407 self.selection_history.mode = SelectionHistoryMode::Normal;
7408 }
7409
7410 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7411 self.go_to_diagnostic_impl(Direction::Next, cx)
7412 }
7413
7414 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7415 self.go_to_diagnostic_impl(Direction::Prev, cx)
7416 }
7417
7418 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7419 let buffer = self.buffer.read(cx).snapshot(cx);
7420 let selection = self.selections.newest::<usize>(cx);
7421
7422 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7423 if direction == Direction::Next {
7424 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7425 let (group_id, jump_to) = popover.activation_info();
7426 if self.activate_diagnostics(group_id, cx) {
7427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7428 let mut new_selection = s.newest_anchor().clone();
7429 new_selection.collapse_to(jump_to, SelectionGoal::None);
7430 s.select_anchors(vec![new_selection.clone()]);
7431 });
7432 }
7433 return;
7434 }
7435 }
7436
7437 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7438 active_diagnostics
7439 .primary_range
7440 .to_offset(&buffer)
7441 .to_inclusive()
7442 });
7443 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7444 if active_primary_range.contains(&selection.head()) {
7445 *active_primary_range.end()
7446 } else {
7447 selection.head()
7448 }
7449 } else {
7450 selection.head()
7451 };
7452
7453 loop {
7454 let mut diagnostics = if direction == Direction::Prev {
7455 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7456 } else {
7457 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7458 };
7459 let group = diagnostics.find_map(|entry| {
7460 if entry.diagnostic.is_primary
7461 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7462 && !entry.range.is_empty()
7463 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7464 && !entry.range.contains(&search_start)
7465 {
7466 Some((entry.range, entry.diagnostic.group_id))
7467 } else {
7468 None
7469 }
7470 });
7471
7472 if let Some((primary_range, group_id)) = group {
7473 if self.activate_diagnostics(group_id, cx) {
7474 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7475 s.select(vec![Selection {
7476 id: selection.id,
7477 start: primary_range.start,
7478 end: primary_range.start,
7479 reversed: false,
7480 goal: SelectionGoal::None,
7481 }]);
7482 });
7483 }
7484 break;
7485 } else {
7486 // Cycle around to the start of the buffer, potentially moving back to the start of
7487 // the currently active diagnostic.
7488 active_primary_range.take();
7489 if direction == Direction::Prev {
7490 if search_start == buffer.len() {
7491 break;
7492 } else {
7493 search_start = buffer.len();
7494 }
7495 } else if search_start == 0 {
7496 break;
7497 } else {
7498 search_start = 0;
7499 }
7500 }
7501 }
7502 }
7503
7504 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7505 let snapshot = self
7506 .display_map
7507 .update(cx, |display_map, cx| display_map.snapshot(cx));
7508 let selection = self.selections.newest::<Point>(cx);
7509
7510 if !self.seek_in_direction(
7511 &snapshot,
7512 selection.head(),
7513 false,
7514 snapshot
7515 .buffer_snapshot
7516 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7517 cx,
7518 ) {
7519 let wrapped_point = Point::zero();
7520 self.seek_in_direction(
7521 &snapshot,
7522 wrapped_point,
7523 true,
7524 snapshot
7525 .buffer_snapshot
7526 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7527 cx,
7528 );
7529 }
7530 }
7531
7532 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7533 let snapshot = self
7534 .display_map
7535 .update(cx, |display_map, cx| display_map.snapshot(cx));
7536 let selection = self.selections.newest::<Point>(cx);
7537
7538 if !self.seek_in_direction(
7539 &snapshot,
7540 selection.head(),
7541 false,
7542 snapshot
7543 .buffer_snapshot
7544 .git_diff_hunks_in_range_rev(0..selection.head().row),
7545 cx,
7546 ) {
7547 let wrapped_point = snapshot.buffer_snapshot.max_point();
7548 self.seek_in_direction(
7549 &snapshot,
7550 wrapped_point,
7551 true,
7552 snapshot
7553 .buffer_snapshot
7554 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7555 cx,
7556 );
7557 }
7558 }
7559
7560 fn seek_in_direction(
7561 &mut self,
7562 snapshot: &DisplaySnapshot,
7563 initial_point: Point,
7564 is_wrapped: bool,
7565 hunks: impl Iterator<Item = DiffHunk<u32>>,
7566 cx: &mut ViewContext<Editor>,
7567 ) -> bool {
7568 let display_point = initial_point.to_display_point(snapshot);
7569 let mut hunks = hunks
7570 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7571 .filter(|hunk| {
7572 if is_wrapped {
7573 true
7574 } else {
7575 !hunk.contains_display_row(display_point.row())
7576 }
7577 })
7578 .dedup();
7579
7580 if let Some(hunk) = hunks.next() {
7581 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7582 let row = hunk.start_display_row();
7583 let point = DisplayPoint::new(row, 0);
7584 s.select_display_ranges([point..point]);
7585 });
7586
7587 true
7588 } else {
7589 false
7590 }
7591 }
7592
7593 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7594 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7595 }
7596
7597 pub fn go_to_implementation(&mut self, _: &GoToImplementation, cx: &mut ViewContext<Self>) {
7598 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx);
7599 }
7600
7601 pub fn go_to_implementation_split(
7602 &mut self,
7603 _: &GoToImplementationSplit,
7604 cx: &mut ViewContext<Self>,
7605 ) {
7606 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx);
7607 }
7608
7609 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7610 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7611 }
7612
7613 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7614 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7615 }
7616
7617 pub fn go_to_type_definition_split(
7618 &mut self,
7619 _: &GoToTypeDefinitionSplit,
7620 cx: &mut ViewContext<Self>,
7621 ) {
7622 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7623 }
7624
7625 fn go_to_definition_of_kind(
7626 &mut self,
7627 kind: GotoDefinitionKind,
7628 split: bool,
7629 cx: &mut ViewContext<Self>,
7630 ) {
7631 let Some(workspace) = self.workspace() else {
7632 return;
7633 };
7634 let buffer = self.buffer.read(cx);
7635 let head = self.selections.newest::<usize>(cx).head();
7636 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7637 text_anchor
7638 } else {
7639 return;
7640 };
7641
7642 let project = workspace.read(cx).project().clone();
7643 let definitions = project.update(cx, |project, cx| match kind {
7644 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7645 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7646 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7647 });
7648
7649 cx.spawn(|editor, mut cx| async move {
7650 let definitions = definitions.await?;
7651 editor.update(&mut cx, |editor, cx| {
7652 editor.navigate_to_hover_links(
7653 Some(kind),
7654 definitions.into_iter().map(HoverLink::Text).collect(),
7655 split,
7656 cx,
7657 );
7658 })?;
7659 Ok::<(), anyhow::Error>(())
7660 })
7661 .detach_and_log_err(cx);
7662 }
7663
7664 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7665 let position = self.selections.newest_anchor().head();
7666 let Some((buffer, buffer_position)) =
7667 self.buffer.read(cx).text_anchor_for_position(position, cx)
7668 else {
7669 return;
7670 };
7671
7672 cx.spawn(|editor, mut cx| async move {
7673 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7674 editor.update(&mut cx, |_, cx| {
7675 cx.open_url(&url);
7676 })
7677 } else {
7678 Ok(())
7679 }
7680 })
7681 .detach();
7682 }
7683
7684 pub(crate) fn navigate_to_hover_links(
7685 &mut self,
7686 kind: Option<GotoDefinitionKind>,
7687 mut definitions: Vec<HoverLink>,
7688 split: bool,
7689 cx: &mut ViewContext<Editor>,
7690 ) {
7691 // If there is one definition, just open it directly
7692 if definitions.len() == 1 {
7693 let definition = definitions.pop().unwrap();
7694 let target_task = match definition {
7695 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7696 HoverLink::InlayHint(lsp_location, server_id) => {
7697 self.compute_target_location(lsp_location, server_id, cx)
7698 }
7699 HoverLink::Url(url) => {
7700 cx.open_url(&url);
7701 Task::ready(Ok(None))
7702 }
7703 };
7704 cx.spawn(|editor, mut cx| async move {
7705 let target = target_task.await.context("target resolution task")?;
7706 if let Some(target) = target {
7707 editor.update(&mut cx, |editor, cx| {
7708 let Some(workspace) = editor.workspace() else {
7709 return;
7710 };
7711 let pane = workspace.read(cx).active_pane().clone();
7712
7713 let range = target.range.to_offset(target.buffer.read(cx));
7714 let range = editor.range_for_match(&range);
7715 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7716 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7717 s.select_ranges([range]);
7718 });
7719 } else {
7720 cx.window_context().defer(move |cx| {
7721 let target_editor: View<Self> =
7722 workspace.update(cx, |workspace, cx| {
7723 let pane = if split {
7724 workspace.adjacent_pane(cx)
7725 } else {
7726 workspace.active_pane().clone()
7727 };
7728
7729 workspace.open_project_item(pane, target.buffer.clone(), cx)
7730 });
7731 target_editor.update(cx, |target_editor, cx| {
7732 // When selecting a definition in a different buffer, disable the nav history
7733 // to avoid creating a history entry at the previous cursor location.
7734 pane.update(cx, |pane, _| pane.disable_history());
7735 target_editor.change_selections(
7736 Some(Autoscroll::fit()),
7737 cx,
7738 |s| {
7739 s.select_ranges([range]);
7740 },
7741 );
7742 pane.update(cx, |pane, _| pane.enable_history());
7743 });
7744 });
7745 }
7746 })
7747 } else {
7748 Ok(())
7749 }
7750 })
7751 .detach_and_log_err(cx);
7752 } else if !definitions.is_empty() {
7753 let replica_id = self.replica_id(cx);
7754 cx.spawn(|editor, mut cx| async move {
7755 let (title, location_tasks, workspace) = editor
7756 .update(&mut cx, |editor, cx| {
7757 let tab_kind = match kind {
7758 Some(GotoDefinitionKind::Implementation) => "Implementations",
7759 _ => "Definitions",
7760 };
7761 let title = definitions
7762 .iter()
7763 .find_map(|definition| match definition {
7764 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7765 let buffer = origin.buffer.read(cx);
7766 format!(
7767 "{} for {}",
7768 tab_kind,
7769 buffer
7770 .text_for_range(origin.range.clone())
7771 .collect::<String>()
7772 )
7773 }),
7774 HoverLink::InlayHint(_, _) => None,
7775 HoverLink::Url(_) => None,
7776 })
7777 .unwrap_or(tab_kind.to_string());
7778 let location_tasks = definitions
7779 .into_iter()
7780 .map(|definition| match definition {
7781 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7782 HoverLink::InlayHint(lsp_location, server_id) => {
7783 editor.compute_target_location(lsp_location, server_id, cx)
7784 }
7785 HoverLink::Url(_) => Task::ready(Ok(None)),
7786 })
7787 .collect::<Vec<_>>();
7788 (title, location_tasks, editor.workspace().clone())
7789 })
7790 .context("location tasks preparation")?;
7791
7792 let locations = futures::future::join_all(location_tasks)
7793 .await
7794 .into_iter()
7795 .filter_map(|location| location.transpose())
7796 .collect::<Result<_>>()
7797 .context("location tasks")?;
7798
7799 let Some(workspace) = workspace else {
7800 return Ok(());
7801 };
7802 workspace
7803 .update(&mut cx, |workspace, cx| {
7804 Self::open_locations_in_multibuffer(
7805 workspace, locations, replica_id, title, split, cx,
7806 )
7807 })
7808 .ok();
7809
7810 anyhow::Ok(())
7811 })
7812 .detach_and_log_err(cx);
7813 }
7814 }
7815
7816 fn compute_target_location(
7817 &self,
7818 lsp_location: lsp::Location,
7819 server_id: LanguageServerId,
7820 cx: &mut ViewContext<Editor>,
7821 ) -> Task<anyhow::Result<Option<Location>>> {
7822 let Some(project) = self.project.clone() else {
7823 return Task::Ready(Some(Ok(None)));
7824 };
7825
7826 cx.spawn(move |editor, mut cx| async move {
7827 let location_task = editor.update(&mut cx, |editor, cx| {
7828 project.update(cx, |project, cx| {
7829 let language_server_name =
7830 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7831 project
7832 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7833 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7834 });
7835 language_server_name.map(|language_server_name| {
7836 project.open_local_buffer_via_lsp(
7837 lsp_location.uri.clone(),
7838 server_id,
7839 language_server_name,
7840 cx,
7841 )
7842 })
7843 })
7844 })?;
7845 let location = match location_task {
7846 Some(task) => Some({
7847 let target_buffer_handle = task.await.context("open local buffer")?;
7848 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7849 let target_start = target_buffer
7850 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7851 let target_end = target_buffer
7852 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7853 target_buffer.anchor_after(target_start)
7854 ..target_buffer.anchor_before(target_end)
7855 })?;
7856 Location {
7857 buffer: target_buffer_handle,
7858 range,
7859 }
7860 }),
7861 None => None,
7862 };
7863 Ok(location)
7864 })
7865 }
7866
7867 pub fn find_all_references(
7868 &mut self,
7869 _: &FindAllReferences,
7870 cx: &mut ViewContext<Self>,
7871 ) -> Option<Task<Result<()>>> {
7872 let buffer = self.buffer.read(cx);
7873 let head = self.selections.newest::<usize>(cx).head();
7874 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7875 let replica_id = self.replica_id(cx);
7876
7877 let workspace = self.workspace()?;
7878 let project = workspace.read(cx).project().clone();
7879 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7880 Some(cx.spawn(|editor, mut cx| async move {
7881 let mut locations = references.await?;
7882 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7883 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7884
7885 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7886 // So we will remove it from locations
7887 // If there is only one reference, we will not do this filter cause it may make locations empty
7888 if locations.len() > 1 {
7889 cx.update(|cx| {
7890 locations.retain(|location| {
7891 // fn foo(x : i64) {
7892 // ^
7893 // println!(x);
7894 // }
7895 // It is ok to find reference when caret being at ^ (the end of the word)
7896 // So we turn offset into inclusive to include the end of the word
7897 !location
7898 .range
7899 .to_offset(location.buffer.read(cx))
7900 .to_inclusive()
7901 .contains(&head_offset)
7902 });
7903 })?;
7904 }
7905
7906 if locations.is_empty() {
7907 return Ok(());
7908 }
7909
7910 // If there is one reference, just open it directly
7911 if locations.len() == 1 {
7912 let target = locations.pop().unwrap();
7913
7914 return editor.update(&mut cx, |editor, cx| {
7915 let range = target.range.to_offset(target.buffer.read(cx));
7916 let range = editor.range_for_match(&range);
7917
7918 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7919 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 s.select_ranges([range]);
7921 });
7922 } else {
7923 cx.window_context().defer(move |cx| {
7924 let target_editor: View<Self> =
7925 workspace.update(cx, |workspace, cx| {
7926 workspace.open_project_item(
7927 workspace.active_pane().clone(),
7928 target.buffer.clone(),
7929 cx,
7930 )
7931 });
7932 target_editor.update(cx, |target_editor, cx| {
7933 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7934 s.select_ranges([range]);
7935 })
7936 })
7937 })
7938 }
7939 });
7940 }
7941
7942 workspace.update(&mut cx, |workspace, cx| {
7943 let title = locations
7944 .first()
7945 .as_ref()
7946 .map(|location| {
7947 let buffer = location.buffer.read(cx);
7948 format!(
7949 "References to `{}`",
7950 buffer
7951 .text_for_range(location.range.clone())
7952 .collect::<String>()
7953 )
7954 })
7955 .unwrap();
7956 Self::open_locations_in_multibuffer(
7957 workspace, locations, replica_id, title, false, cx,
7958 );
7959 })?;
7960
7961 Ok(())
7962 }))
7963 }
7964
7965 /// Opens a multibuffer with the given project locations in it
7966 pub fn open_locations_in_multibuffer(
7967 workspace: &mut Workspace,
7968 mut locations: Vec<Location>,
7969 replica_id: ReplicaId,
7970 title: String,
7971 split: bool,
7972 cx: &mut ViewContext<Workspace>,
7973 ) {
7974 // If there are multiple definitions, open them in a multibuffer
7975 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7976 let mut locations = locations.into_iter().peekable();
7977 let mut ranges_to_highlight = Vec::new();
7978 let capability = workspace.project().read(cx).capability();
7979
7980 let excerpt_buffer = cx.new_model(|cx| {
7981 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7982 while let Some(location) = locations.next() {
7983 let buffer = location.buffer.read(cx);
7984 let mut ranges_for_buffer = Vec::new();
7985 let range = location.range.to_offset(buffer);
7986 ranges_for_buffer.push(range.clone());
7987
7988 while let Some(next_location) = locations.peek() {
7989 if next_location.buffer == location.buffer {
7990 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7991 locations.next();
7992 } else {
7993 break;
7994 }
7995 }
7996
7997 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7998 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7999 location.buffer.clone(),
8000 ranges_for_buffer,
8001 1,
8002 cx,
8003 ))
8004 }
8005
8006 multibuffer.with_title(title)
8007 });
8008
8009 let editor = cx.new_view(|cx| {
8010 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8011 });
8012 editor.update(cx, |editor, cx| {
8013 editor.highlight_background::<Self>(
8014 ranges_to_highlight,
8015 |theme| theme.editor_highlighted_line_background,
8016 cx,
8017 );
8018 });
8019 if split {
8020 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8021 } else {
8022 workspace.add_item_to_active_pane(Box::new(editor), cx);
8023 }
8024 }
8025
8026 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8027 use language::ToOffset as _;
8028
8029 let project = self.project.clone()?;
8030 let selection = self.selections.newest_anchor().clone();
8031 let (cursor_buffer, cursor_buffer_position) = self
8032 .buffer
8033 .read(cx)
8034 .text_anchor_for_position(selection.head(), cx)?;
8035 let (tail_buffer, _) = self
8036 .buffer
8037 .read(cx)
8038 .text_anchor_for_position(selection.tail(), cx)?;
8039 if tail_buffer != cursor_buffer {
8040 return None;
8041 }
8042
8043 let snapshot = cursor_buffer.read(cx).snapshot();
8044 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8045 let prepare_rename = project.update(cx, |project, cx| {
8046 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8047 });
8048 drop(snapshot);
8049
8050 Some(cx.spawn(|this, mut cx| async move {
8051 let rename_range = if let Some(range) = prepare_rename.await? {
8052 Some(range)
8053 } else {
8054 this.update(&mut cx, |this, cx| {
8055 let buffer = this.buffer.read(cx).snapshot(cx);
8056 let mut buffer_highlights = this
8057 .document_highlights_for_position(selection.head(), &buffer)
8058 .filter(|highlight| {
8059 highlight.start.excerpt_id == selection.head().excerpt_id
8060 && highlight.end.excerpt_id == selection.head().excerpt_id
8061 });
8062 buffer_highlights
8063 .next()
8064 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8065 })?
8066 };
8067 if let Some(rename_range) = rename_range {
8068 this.update(&mut cx, |this, cx| {
8069 let snapshot = cursor_buffer.read(cx).snapshot();
8070 let rename_buffer_range = rename_range.to_offset(&snapshot);
8071 let cursor_offset_in_rename_range =
8072 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8073
8074 this.take_rename(false, cx);
8075 let buffer = this.buffer.read(cx).read(cx);
8076 let cursor_offset = selection.head().to_offset(&buffer);
8077 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8078 let rename_end = rename_start + rename_buffer_range.len();
8079 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8080 let mut old_highlight_id = None;
8081 let old_name: Arc<str> = buffer
8082 .chunks(rename_start..rename_end, true)
8083 .map(|chunk| {
8084 if old_highlight_id.is_none() {
8085 old_highlight_id = chunk.syntax_highlight_id;
8086 }
8087 chunk.text
8088 })
8089 .collect::<String>()
8090 .into();
8091
8092 drop(buffer);
8093
8094 // Position the selection in the rename editor so that it matches the current selection.
8095 this.show_local_selections = false;
8096 let rename_editor = cx.new_view(|cx| {
8097 let mut editor = Editor::single_line(cx);
8098 editor.buffer.update(cx, |buffer, cx| {
8099 buffer.edit([(0..0, old_name.clone())], None, cx)
8100 });
8101 editor.select_all(&SelectAll, cx);
8102 editor
8103 });
8104
8105 let ranges = this
8106 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8107 .into_iter()
8108 .flat_map(|(_, ranges)| ranges.into_iter())
8109 .chain(
8110 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8111 .into_iter()
8112 .flat_map(|(_, ranges)| ranges.into_iter()),
8113 )
8114 .collect();
8115
8116 this.highlight_text::<Rename>(
8117 ranges,
8118 HighlightStyle {
8119 fade_out: Some(0.6),
8120 ..Default::default()
8121 },
8122 cx,
8123 );
8124 let rename_focus_handle = rename_editor.focus_handle(cx);
8125 cx.focus(&rename_focus_handle);
8126 let block_id = this.insert_blocks(
8127 [BlockProperties {
8128 style: BlockStyle::Flex,
8129 position: range.start,
8130 height: 1,
8131 render: Arc::new({
8132 let rename_editor = rename_editor.clone();
8133 move |cx: &mut BlockContext| {
8134 let mut text_style = cx.editor_style.text.clone();
8135 if let Some(highlight_style) = old_highlight_id
8136 .and_then(|h| h.style(&cx.editor_style.syntax))
8137 {
8138 text_style = text_style.highlight(highlight_style);
8139 }
8140 div()
8141 .pl(cx.anchor_x)
8142 .child(EditorElement::new(
8143 &rename_editor,
8144 EditorStyle {
8145 background: cx.theme().system().transparent,
8146 local_player: cx.editor_style.local_player,
8147 text: text_style,
8148 scrollbar_width: cx.editor_style.scrollbar_width,
8149 syntax: cx.editor_style.syntax.clone(),
8150 status: cx.editor_style.status.clone(),
8151 inlays_style: HighlightStyle {
8152 color: Some(cx.theme().status().hint),
8153 font_weight: Some(FontWeight::BOLD),
8154 ..HighlightStyle::default()
8155 },
8156 suggestions_style: HighlightStyle {
8157 color: Some(cx.theme().status().predictive),
8158 ..HighlightStyle::default()
8159 },
8160 },
8161 ))
8162 .into_any_element()
8163 }
8164 }),
8165 disposition: BlockDisposition::Below,
8166 }],
8167 Some(Autoscroll::fit()),
8168 cx,
8169 )[0];
8170 this.pending_rename = Some(RenameState {
8171 range,
8172 old_name,
8173 editor: rename_editor,
8174 block_id,
8175 });
8176 })?;
8177 }
8178
8179 Ok(())
8180 }))
8181 }
8182
8183 pub fn confirm_rename(
8184 &mut self,
8185 _: &ConfirmRename,
8186 cx: &mut ViewContext<Self>,
8187 ) -> Option<Task<Result<()>>> {
8188 let rename = self.take_rename(false, cx)?;
8189 let workspace = self.workspace()?;
8190 let (start_buffer, start) = self
8191 .buffer
8192 .read(cx)
8193 .text_anchor_for_position(rename.range.start, cx)?;
8194 let (end_buffer, end) = self
8195 .buffer
8196 .read(cx)
8197 .text_anchor_for_position(rename.range.end, cx)?;
8198 if start_buffer != end_buffer {
8199 return None;
8200 }
8201
8202 let buffer = start_buffer;
8203 let range = start..end;
8204 let old_name = rename.old_name;
8205 let new_name = rename.editor.read(cx).text(cx);
8206
8207 let rename = workspace
8208 .read(cx)
8209 .project()
8210 .clone()
8211 .update(cx, |project, cx| {
8212 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8213 });
8214 let workspace = workspace.downgrade();
8215
8216 Some(cx.spawn(|editor, mut cx| async move {
8217 let project_transaction = rename.await?;
8218 Self::open_project_transaction(
8219 &editor,
8220 workspace,
8221 project_transaction,
8222 format!("Rename: {} → {}", old_name, new_name),
8223 cx.clone(),
8224 )
8225 .await?;
8226
8227 editor.update(&mut cx, |editor, cx| {
8228 editor.refresh_document_highlights(cx);
8229 })?;
8230 Ok(())
8231 }))
8232 }
8233
8234 fn take_rename(
8235 &mut self,
8236 moving_cursor: bool,
8237 cx: &mut ViewContext<Self>,
8238 ) -> Option<RenameState> {
8239 let rename = self.pending_rename.take()?;
8240 if rename.editor.focus_handle(cx).is_focused(cx) {
8241 cx.focus(&self.focus_handle);
8242 }
8243
8244 self.remove_blocks(
8245 [rename.block_id].into_iter().collect(),
8246 Some(Autoscroll::fit()),
8247 cx,
8248 );
8249 self.clear_highlights::<Rename>(cx);
8250 self.show_local_selections = true;
8251
8252 if moving_cursor {
8253 let rename_editor = rename.editor.read(cx);
8254 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8255
8256 // Update the selection to match the position of the selection inside
8257 // the rename editor.
8258 let snapshot = self.buffer.read(cx).read(cx);
8259 let rename_range = rename.range.to_offset(&snapshot);
8260 let cursor_in_editor = snapshot
8261 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8262 .min(rename_range.end);
8263 drop(snapshot);
8264
8265 self.change_selections(None, cx, |s| {
8266 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8267 });
8268 } else {
8269 self.refresh_document_highlights(cx);
8270 }
8271
8272 Some(rename)
8273 }
8274
8275 pub fn pending_rename(&self) -> Option<&RenameState> {
8276 self.pending_rename.as_ref()
8277 }
8278
8279 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8280 let project = match &self.project {
8281 Some(project) => project.clone(),
8282 None => return None,
8283 };
8284
8285 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8286 }
8287
8288 fn perform_format(
8289 &mut self,
8290 project: Model<Project>,
8291 trigger: FormatTrigger,
8292 cx: &mut ViewContext<Self>,
8293 ) -> Task<Result<()>> {
8294 let buffer = self.buffer().clone();
8295 let buffers = buffer.read(cx).all_buffers();
8296
8297 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8298 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8299
8300 cx.spawn(|_, mut cx| async move {
8301 let transaction = futures::select_biased! {
8302 _ = timeout => {
8303 log::warn!("timed out waiting for formatting");
8304 None
8305 }
8306 transaction = format.log_err().fuse() => transaction,
8307 };
8308
8309 buffer
8310 .update(&mut cx, |buffer, cx| {
8311 if let Some(transaction) = transaction {
8312 if !buffer.is_singleton() {
8313 buffer.push_transaction(&transaction.0, cx);
8314 }
8315 }
8316
8317 cx.notify();
8318 })
8319 .ok();
8320
8321 Ok(())
8322 })
8323 }
8324
8325 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8326 if let Some(project) = self.project.clone() {
8327 self.buffer.update(cx, |multi_buffer, cx| {
8328 project.update(cx, |project, cx| {
8329 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8330 });
8331 })
8332 }
8333 }
8334
8335 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8336 cx.show_character_palette();
8337 }
8338
8339 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8340 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8341 let buffer = self.buffer.read(cx).snapshot(cx);
8342 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8343 let is_valid = buffer
8344 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8345 .any(|entry| {
8346 entry.diagnostic.is_primary
8347 && !entry.range.is_empty()
8348 && entry.range.start == primary_range_start
8349 && entry.diagnostic.message == active_diagnostics.primary_message
8350 });
8351
8352 if is_valid != active_diagnostics.is_valid {
8353 active_diagnostics.is_valid = is_valid;
8354 let mut new_styles = HashMap::default();
8355 for (block_id, diagnostic) in &active_diagnostics.blocks {
8356 new_styles.insert(
8357 *block_id,
8358 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8359 );
8360 }
8361 self.display_map
8362 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8363 }
8364 }
8365 }
8366
8367 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8368 self.dismiss_diagnostics(cx);
8369 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8370 let buffer = self.buffer.read(cx).snapshot(cx);
8371
8372 let mut primary_range = None;
8373 let mut primary_message = None;
8374 let mut group_end = Point::zero();
8375 let diagnostic_group = buffer
8376 .diagnostic_group::<Point>(group_id)
8377 .map(|entry| {
8378 if entry.range.end > group_end {
8379 group_end = entry.range.end;
8380 }
8381 if entry.diagnostic.is_primary {
8382 primary_range = Some(entry.range.clone());
8383 primary_message = Some(entry.diagnostic.message.clone());
8384 }
8385 entry
8386 })
8387 .collect::<Vec<_>>();
8388 let primary_range = primary_range?;
8389 let primary_message = primary_message?;
8390 let primary_range =
8391 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8392
8393 let blocks = display_map
8394 .insert_blocks(
8395 diagnostic_group.iter().map(|entry| {
8396 let diagnostic = entry.diagnostic.clone();
8397 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8398 BlockProperties {
8399 style: BlockStyle::Fixed,
8400 position: buffer.anchor_after(entry.range.start),
8401 height: message_height,
8402 render: diagnostic_block_renderer(diagnostic, true),
8403 disposition: BlockDisposition::Below,
8404 }
8405 }),
8406 cx,
8407 )
8408 .into_iter()
8409 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8410 .collect();
8411
8412 Some(ActiveDiagnosticGroup {
8413 primary_range,
8414 primary_message,
8415 blocks,
8416 is_valid: true,
8417 })
8418 });
8419 self.active_diagnostics.is_some()
8420 }
8421
8422 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8423 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8424 self.display_map.update(cx, |display_map, cx| {
8425 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8426 });
8427 cx.notify();
8428 }
8429 }
8430
8431 pub fn set_selections_from_remote(
8432 &mut self,
8433 selections: Vec<Selection<Anchor>>,
8434 pending_selection: Option<Selection<Anchor>>,
8435 cx: &mut ViewContext<Self>,
8436 ) {
8437 let old_cursor_position = self.selections.newest_anchor().head();
8438 self.selections.change_with(cx, |s| {
8439 s.select_anchors(selections);
8440 if let Some(pending_selection) = pending_selection {
8441 s.set_pending(pending_selection, SelectMode::Character);
8442 } else {
8443 s.clear_pending();
8444 }
8445 });
8446 self.selections_did_change(false, &old_cursor_position, cx);
8447 }
8448
8449 fn push_to_selection_history(&mut self) {
8450 self.selection_history.push(SelectionHistoryEntry {
8451 selections: self.selections.disjoint_anchors(),
8452 select_next_state: self.select_next_state.clone(),
8453 select_prev_state: self.select_prev_state.clone(),
8454 add_selections_state: self.add_selections_state.clone(),
8455 });
8456 }
8457
8458 pub fn transact(
8459 &mut self,
8460 cx: &mut ViewContext<Self>,
8461 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8462 ) -> Option<TransactionId> {
8463 self.start_transaction_at(Instant::now(), cx);
8464 update(self, cx);
8465 self.end_transaction_at(Instant::now(), cx)
8466 }
8467
8468 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8469 self.end_selection(cx);
8470 if let Some(tx_id) = self
8471 .buffer
8472 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8473 {
8474 self.selection_history
8475 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8476 }
8477 }
8478
8479 fn end_transaction_at(
8480 &mut self,
8481 now: Instant,
8482 cx: &mut ViewContext<Self>,
8483 ) -> Option<TransactionId> {
8484 if let Some(tx_id) = self
8485 .buffer
8486 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8487 {
8488 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8489 *end_selections = Some(self.selections.disjoint_anchors());
8490 } else {
8491 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8492 }
8493
8494 cx.emit(EditorEvent::Edited);
8495 Some(tx_id)
8496 } else {
8497 None
8498 }
8499 }
8500
8501 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8502 let mut fold_ranges = Vec::new();
8503
8504 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8505
8506 let selections = self.selections.all_adjusted(cx);
8507 for selection in selections {
8508 let range = selection.range().sorted();
8509 let buffer_start_row = range.start.row;
8510
8511 for row in (0..=range.end.row).rev() {
8512 let fold_range = display_map.foldable_range(row);
8513
8514 if let Some(fold_range) = fold_range {
8515 if fold_range.end.row >= buffer_start_row {
8516 fold_ranges.push(fold_range);
8517 if row <= range.start.row {
8518 break;
8519 }
8520 }
8521 }
8522 }
8523 }
8524
8525 self.fold_ranges(fold_ranges, true, cx);
8526 }
8527
8528 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8529 let buffer_row = fold_at.buffer_row;
8530 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8531
8532 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8533 let autoscroll = self
8534 .selections
8535 .all::<Point>(cx)
8536 .iter()
8537 .any(|selection| fold_range.overlaps(&selection.range()));
8538
8539 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8540 }
8541 }
8542
8543 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8544 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8545 let buffer = &display_map.buffer_snapshot;
8546 let selections = self.selections.all::<Point>(cx);
8547 let ranges = selections
8548 .iter()
8549 .map(|s| {
8550 let range = s.display_range(&display_map).sorted();
8551 let mut start = range.start.to_point(&display_map);
8552 let mut end = range.end.to_point(&display_map);
8553 start.column = 0;
8554 end.column = buffer.line_len(end.row);
8555 start..end
8556 })
8557 .collect::<Vec<_>>();
8558
8559 self.unfold_ranges(ranges, true, true, cx);
8560 }
8561
8562 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8563 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8564
8565 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8566 ..Point::new(
8567 unfold_at.buffer_row,
8568 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8569 );
8570
8571 let autoscroll = self
8572 .selections
8573 .all::<Point>(cx)
8574 .iter()
8575 .any(|selection| selection.range().overlaps(&intersection_range));
8576
8577 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8578 }
8579
8580 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8581 let selections = self.selections.all::<Point>(cx);
8582 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8583 let line_mode = self.selections.line_mode;
8584 let ranges = selections.into_iter().map(|s| {
8585 if line_mode {
8586 let start = Point::new(s.start.row, 0);
8587 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8588 start..end
8589 } else {
8590 s.start..s.end
8591 }
8592 });
8593 self.fold_ranges(ranges, true, cx);
8594 }
8595
8596 pub fn fold_ranges<T: ToOffset + Clone>(
8597 &mut self,
8598 ranges: impl IntoIterator<Item = Range<T>>,
8599 auto_scroll: bool,
8600 cx: &mut ViewContext<Self>,
8601 ) {
8602 let mut ranges = ranges.into_iter().peekable();
8603 if ranges.peek().is_some() {
8604 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8605
8606 if auto_scroll {
8607 self.request_autoscroll(Autoscroll::fit(), cx);
8608 }
8609
8610 cx.notify();
8611 }
8612 }
8613
8614 pub fn unfold_ranges<T: ToOffset + Clone>(
8615 &mut self,
8616 ranges: impl IntoIterator<Item = Range<T>>,
8617 inclusive: bool,
8618 auto_scroll: bool,
8619 cx: &mut ViewContext<Self>,
8620 ) {
8621 let mut ranges = ranges.into_iter().peekable();
8622 if ranges.peek().is_some() {
8623 self.display_map
8624 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8625 if auto_scroll {
8626 self.request_autoscroll(Autoscroll::fit(), cx);
8627 }
8628
8629 cx.notify();
8630 }
8631 }
8632
8633 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8634 if hovered != self.gutter_hovered {
8635 self.gutter_hovered = hovered;
8636 cx.notify();
8637 }
8638 }
8639
8640 pub fn insert_blocks(
8641 &mut self,
8642 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8643 autoscroll: Option<Autoscroll>,
8644 cx: &mut ViewContext<Self>,
8645 ) -> Vec<BlockId> {
8646 let blocks = self
8647 .display_map
8648 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8649 if let Some(autoscroll) = autoscroll {
8650 self.request_autoscroll(autoscroll, cx);
8651 }
8652 blocks
8653 }
8654
8655 pub fn replace_blocks(
8656 &mut self,
8657 blocks: HashMap<BlockId, RenderBlock>,
8658 autoscroll: Option<Autoscroll>,
8659 cx: &mut ViewContext<Self>,
8660 ) {
8661 self.display_map
8662 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8663 if let Some(autoscroll) = autoscroll {
8664 self.request_autoscroll(autoscroll, cx);
8665 }
8666 }
8667
8668 pub fn remove_blocks(
8669 &mut self,
8670 block_ids: HashSet<BlockId>,
8671 autoscroll: Option<Autoscroll>,
8672 cx: &mut ViewContext<Self>,
8673 ) {
8674 self.display_map.update(cx, |display_map, cx| {
8675 display_map.remove_blocks(block_ids, cx)
8676 });
8677 if let Some(autoscroll) = autoscroll {
8678 self.request_autoscroll(autoscroll, cx);
8679 }
8680 }
8681
8682 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8683 self.display_map
8684 .update(cx, |map, cx| map.snapshot(cx))
8685 .longest_row()
8686 }
8687
8688 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8689 self.display_map
8690 .update(cx, |map, cx| map.snapshot(cx))
8691 .max_point()
8692 }
8693
8694 pub fn text(&self, cx: &AppContext) -> String {
8695 self.buffer.read(cx).read(cx).text()
8696 }
8697
8698 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8699 let text = self.text(cx);
8700 let text = text.trim();
8701
8702 if text.is_empty() {
8703 return None;
8704 }
8705
8706 Some(text.to_string())
8707 }
8708
8709 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8710 self.transact(cx, |this, cx| {
8711 this.buffer
8712 .read(cx)
8713 .as_singleton()
8714 .expect("you can only call set_text on editors for singleton buffers")
8715 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8716 });
8717 }
8718
8719 pub fn display_text(&self, cx: &mut AppContext) -> String {
8720 self.display_map
8721 .update(cx, |map, cx| map.snapshot(cx))
8722 .text()
8723 }
8724
8725 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8726 let mut wrap_guides = smallvec::smallvec![];
8727
8728 if self.show_wrap_guides == Some(false) {
8729 return wrap_guides;
8730 }
8731
8732 let settings = self.buffer.read(cx).settings_at(0, cx);
8733 if settings.show_wrap_guides {
8734 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8735 wrap_guides.push((soft_wrap as usize, true));
8736 }
8737 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8738 }
8739
8740 wrap_guides
8741 }
8742
8743 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8744 let settings = self.buffer.read(cx).settings_at(0, cx);
8745 let mode = self
8746 .soft_wrap_mode_override
8747 .unwrap_or_else(|| settings.soft_wrap);
8748 match mode {
8749 language_settings::SoftWrap::None => SoftWrap::None,
8750 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8751 language_settings::SoftWrap::PreferredLineLength => {
8752 SoftWrap::Column(settings.preferred_line_length)
8753 }
8754 }
8755 }
8756
8757 pub fn set_soft_wrap_mode(
8758 &mut self,
8759 mode: language_settings::SoftWrap,
8760 cx: &mut ViewContext<Self>,
8761 ) {
8762 self.soft_wrap_mode_override = Some(mode);
8763 cx.notify();
8764 }
8765
8766 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8767 let rem_size = cx.rem_size();
8768 self.display_map.update(cx, |map, cx| {
8769 map.set_font(
8770 style.text.font(),
8771 style.text.font_size.to_pixels(rem_size),
8772 cx,
8773 )
8774 });
8775 self.style = Some(style);
8776 }
8777
8778 #[cfg(any(test, feature = "test-support"))]
8779 pub fn style(&self) -> Option<&EditorStyle> {
8780 self.style.as_ref()
8781 }
8782
8783 // Called by the element. This method is not designed to be called outside of the editor
8784 // element's layout code because it does not notify when rewrapping is computed synchronously.
8785 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8786 self.display_map
8787 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8788 }
8789
8790 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8791 if self.soft_wrap_mode_override.is_some() {
8792 self.soft_wrap_mode_override.take();
8793 } else {
8794 let soft_wrap = match self.soft_wrap_mode(cx) {
8795 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8796 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8797 };
8798 self.soft_wrap_mode_override = Some(soft_wrap);
8799 }
8800 cx.notify();
8801 }
8802
8803 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8804 let mut editor_settings = EditorSettings::get_global(cx).clone();
8805 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8806 EditorSettings::override_global(editor_settings, cx);
8807 }
8808
8809 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8810 self.show_gutter = show_gutter;
8811 cx.notify();
8812 }
8813
8814 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8815 self.show_wrap_guides = Some(show_gutter);
8816 cx.notify();
8817 }
8818
8819 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8820 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8821 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8822 cx.reveal_path(&file.abs_path(cx));
8823 }
8824 }
8825 }
8826
8827 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8828 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8829 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8830 if let Some(path) = file.abs_path(cx).to_str() {
8831 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8832 }
8833 }
8834 }
8835 }
8836
8837 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8838 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8839 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8840 if let Some(path) = file.path().to_str() {
8841 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8842 }
8843 }
8844 }
8845 }
8846
8847 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8848 use git::permalink::{build_permalink, BuildPermalinkParams};
8849
8850 let (path, repo) = maybe!({
8851 let project_handle = self.project.as_ref()?.clone();
8852 let project = project_handle.read(cx);
8853 let buffer = self.buffer().read(cx).as_singleton()?;
8854 let path = buffer
8855 .read(cx)
8856 .file()?
8857 .as_local()?
8858 .path()
8859 .to_str()?
8860 .to_string();
8861 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8862 Some((path, repo))
8863 })
8864 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8865
8866 const REMOTE_NAME: &str = "origin";
8867 let origin_url = repo
8868 .lock()
8869 .remote_url(REMOTE_NAME)
8870 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8871 let sha = repo
8872 .lock()
8873 .head_sha()
8874 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8875 let selections = self.selections.all::<Point>(cx);
8876 let selection = selections.iter().peekable().next();
8877
8878 build_permalink(BuildPermalinkParams {
8879 remote_url: &origin_url,
8880 sha: &sha,
8881 path: &path,
8882 selection: selection.map(|selection| selection.range()),
8883 })
8884 }
8885
8886 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8887 let permalink = self.get_permalink_to_line(cx);
8888
8889 match permalink {
8890 Ok(permalink) => {
8891 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8892 }
8893 Err(err) => {
8894 let message = format!("Failed to copy permalink: {err}");
8895
8896 Err::<(), anyhow::Error>(err).log_err();
8897
8898 if let Some(workspace) = self.workspace() {
8899 workspace.update(cx, |workspace, cx| {
8900 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8901 })
8902 }
8903 }
8904 }
8905 }
8906
8907 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8908 let permalink = self.get_permalink_to_line(cx);
8909
8910 match permalink {
8911 Ok(permalink) => {
8912 cx.open_url(permalink.as_ref());
8913 }
8914 Err(err) => {
8915 let message = format!("Failed to open permalink: {err}");
8916
8917 Err::<(), anyhow::Error>(err).log_err();
8918
8919 if let Some(workspace) = self.workspace() {
8920 workspace.update(cx, |workspace, cx| {
8921 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8922 })
8923 }
8924 }
8925 }
8926 }
8927
8928 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8929 self.highlighted_rows = rows;
8930 }
8931
8932 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8933 self.highlighted_rows.clone()
8934 }
8935
8936 pub fn highlight_background<T: 'static>(
8937 &mut self,
8938 ranges: Vec<Range<Anchor>>,
8939 color_fetcher: fn(&ThemeColors) -> Hsla,
8940 cx: &mut ViewContext<Self>,
8941 ) {
8942 let snapshot = self.snapshot(cx);
8943 // this is to try and catch a panic sooner
8944 for range in &ranges {
8945 snapshot
8946 .buffer_snapshot
8947 .summary_for_anchor::<usize>(&range.start);
8948 snapshot
8949 .buffer_snapshot
8950 .summary_for_anchor::<usize>(&range.end);
8951 }
8952
8953 self.background_highlights
8954 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8955 cx.notify();
8956 }
8957
8958 pub(crate) fn highlight_inlay_background<T: 'static>(
8959 &mut self,
8960 ranges: Vec<InlayHighlight>,
8961 color_fetcher: fn(&ThemeColors) -> Hsla,
8962 cx: &mut ViewContext<Self>,
8963 ) {
8964 // TODO: no actual highlights happen for inlays currently, find a way to do that
8965 self.inlay_background_highlights
8966 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8967 cx.notify();
8968 }
8969
8970 pub fn clear_background_highlights<T: 'static>(
8971 &mut self,
8972 cx: &mut ViewContext<Self>,
8973 ) -> Option<BackgroundHighlight> {
8974 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8975 let inlay_highlights = self
8976 .inlay_background_highlights
8977 .remove(&Some(TypeId::of::<T>()));
8978 if text_highlights.is_some() || inlay_highlights.is_some() {
8979 cx.notify();
8980 }
8981 text_highlights
8982 }
8983
8984 #[cfg(feature = "test-support")]
8985 pub fn all_text_background_highlights(
8986 &mut self,
8987 cx: &mut ViewContext<Self>,
8988 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8989 let snapshot = self.snapshot(cx);
8990 let buffer = &snapshot.buffer_snapshot;
8991 let start = buffer.anchor_before(0);
8992 let end = buffer.anchor_after(buffer.len());
8993 let theme = cx.theme().colors();
8994 self.background_highlights_in_range(start..end, &snapshot, theme)
8995 }
8996
8997 fn document_highlights_for_position<'a>(
8998 &'a self,
8999 position: Anchor,
9000 buffer: &'a MultiBufferSnapshot,
9001 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9002 let read_highlights = self
9003 .background_highlights
9004 .get(&TypeId::of::<DocumentHighlightRead>())
9005 .map(|h| &h.1);
9006 let write_highlights = self
9007 .background_highlights
9008 .get(&TypeId::of::<DocumentHighlightWrite>())
9009 .map(|h| &h.1);
9010 let left_position = position.bias_left(buffer);
9011 let right_position = position.bias_right(buffer);
9012 read_highlights
9013 .into_iter()
9014 .chain(write_highlights)
9015 .flat_map(move |ranges| {
9016 let start_ix = match ranges.binary_search_by(|probe| {
9017 let cmp = probe.end.cmp(&left_position, buffer);
9018 if cmp.is_ge() {
9019 Ordering::Greater
9020 } else {
9021 Ordering::Less
9022 }
9023 }) {
9024 Ok(i) | Err(i) => i,
9025 };
9026
9027 ranges[start_ix..]
9028 .iter()
9029 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9030 })
9031 }
9032
9033 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9034 self.background_highlights
9035 .get(&TypeId::of::<T>())
9036 .map_or(false, |(_, highlights)| !highlights.is_empty())
9037 }
9038
9039 pub fn background_highlights_in_range(
9040 &self,
9041 search_range: Range<Anchor>,
9042 display_snapshot: &DisplaySnapshot,
9043 theme: &ThemeColors,
9044 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9045 let mut results = Vec::new();
9046 for (color_fetcher, ranges) in self.background_highlights.values() {
9047 let color = color_fetcher(theme);
9048 let start_ix = match ranges.binary_search_by(|probe| {
9049 let cmp = probe
9050 .end
9051 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9052 if cmp.is_gt() {
9053 Ordering::Greater
9054 } else {
9055 Ordering::Less
9056 }
9057 }) {
9058 Ok(i) | Err(i) => i,
9059 };
9060 for range in &ranges[start_ix..] {
9061 if range
9062 .start
9063 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9064 .is_ge()
9065 {
9066 break;
9067 }
9068
9069 let start = range.start.to_display_point(&display_snapshot);
9070 let end = range.end.to_display_point(&display_snapshot);
9071 results.push((start..end, color))
9072 }
9073 }
9074 results
9075 }
9076
9077 pub fn background_highlight_row_ranges<T: 'static>(
9078 &self,
9079 search_range: Range<Anchor>,
9080 display_snapshot: &DisplaySnapshot,
9081 count: usize,
9082 ) -> Vec<RangeInclusive<DisplayPoint>> {
9083 let mut results = Vec::new();
9084 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9085 return vec![];
9086 };
9087
9088 let start_ix = match ranges.binary_search_by(|probe| {
9089 let cmp = probe
9090 .end
9091 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9092 if cmp.is_gt() {
9093 Ordering::Greater
9094 } else {
9095 Ordering::Less
9096 }
9097 }) {
9098 Ok(i) | Err(i) => i,
9099 };
9100 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9101 if let (Some(start_display), Some(end_display)) = (start, end) {
9102 results.push(
9103 start_display.to_display_point(display_snapshot)
9104 ..=end_display.to_display_point(display_snapshot),
9105 );
9106 }
9107 };
9108 let mut start_row: Option<Point> = None;
9109 let mut end_row: Option<Point> = None;
9110 if ranges.len() > count {
9111 return Vec::new();
9112 }
9113 for range in &ranges[start_ix..] {
9114 if range
9115 .start
9116 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9117 .is_ge()
9118 {
9119 break;
9120 }
9121 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9122 if let Some(current_row) = &end_row {
9123 if end.row == current_row.row {
9124 continue;
9125 }
9126 }
9127 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9128 if start_row.is_none() {
9129 assert_eq!(end_row, None);
9130 start_row = Some(start);
9131 end_row = Some(end);
9132 continue;
9133 }
9134 if let Some(current_end) = end_row.as_mut() {
9135 if start.row > current_end.row + 1 {
9136 push_region(start_row, end_row);
9137 start_row = Some(start);
9138 end_row = Some(end);
9139 } else {
9140 // Merge two hunks.
9141 *current_end = end;
9142 }
9143 } else {
9144 unreachable!();
9145 }
9146 }
9147 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9148 push_region(start_row, end_row);
9149 results
9150 }
9151
9152 /// Get the text ranges corresponding to the redaction query
9153 pub fn redacted_ranges(
9154 &self,
9155 search_range: Range<Anchor>,
9156 display_snapshot: &DisplaySnapshot,
9157 cx: &mut ViewContext<Self>,
9158 ) -> Vec<Range<DisplayPoint>> {
9159 display_snapshot
9160 .buffer_snapshot
9161 .redacted_ranges(search_range, |file| {
9162 if let Some(file) = file {
9163 file.is_private()
9164 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
9165 .redact_private_values
9166 } else {
9167 false
9168 }
9169 })
9170 .map(|range| {
9171 range.start.to_display_point(display_snapshot)
9172 ..range.end.to_display_point(display_snapshot)
9173 })
9174 .collect()
9175 }
9176
9177 pub fn highlight_text<T: 'static>(
9178 &mut self,
9179 ranges: Vec<Range<Anchor>>,
9180 style: HighlightStyle,
9181 cx: &mut ViewContext<Self>,
9182 ) {
9183 self.display_map.update(cx, |map, _| {
9184 map.highlight_text(TypeId::of::<T>(), ranges, style)
9185 });
9186 cx.notify();
9187 }
9188
9189 pub(crate) fn highlight_inlays<T: 'static>(
9190 &mut self,
9191 highlights: Vec<InlayHighlight>,
9192 style: HighlightStyle,
9193 cx: &mut ViewContext<Self>,
9194 ) {
9195 self.display_map.update(cx, |map, _| {
9196 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9197 });
9198 cx.notify();
9199 }
9200
9201 pub fn text_highlights<'a, T: 'static>(
9202 &'a self,
9203 cx: &'a AppContext,
9204 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9205 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9206 }
9207
9208 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9209 let cleared = self
9210 .display_map
9211 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9212 if cleared {
9213 cx.notify();
9214 }
9215 }
9216
9217 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9218 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9219 && self.focus_handle.is_focused(cx)
9220 }
9221
9222 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9223 cx.notify();
9224 }
9225
9226 fn on_buffer_event(
9227 &mut self,
9228 multibuffer: Model<MultiBuffer>,
9229 event: &multi_buffer::Event,
9230 cx: &mut ViewContext<Self>,
9231 ) {
9232 match event {
9233 multi_buffer::Event::Edited {
9234 singleton_buffer_edited,
9235 } => {
9236 self.refresh_active_diagnostics(cx);
9237 self.refresh_code_actions(cx);
9238 if self.has_active_copilot_suggestion(cx) {
9239 self.update_visible_copilot_suggestion(cx);
9240 }
9241 cx.emit(EditorEvent::BufferEdited);
9242 cx.emit(SearchEvent::MatchesInvalidated);
9243
9244 if *singleton_buffer_edited {
9245 if let Some(project) = &self.project {
9246 let project = project.read(cx);
9247 let languages_affected = multibuffer
9248 .read(cx)
9249 .all_buffers()
9250 .into_iter()
9251 .filter_map(|buffer| {
9252 let buffer = buffer.read(cx);
9253 let language = buffer.language()?;
9254 if project.is_local()
9255 && project.language_servers_for_buffer(buffer, cx).count() == 0
9256 {
9257 None
9258 } else {
9259 Some(language)
9260 }
9261 })
9262 .cloned()
9263 .collect::<HashSet<_>>();
9264 if !languages_affected.is_empty() {
9265 self.refresh_inlay_hints(
9266 InlayHintRefreshReason::BufferEdited(languages_affected),
9267 cx,
9268 );
9269 }
9270 }
9271 }
9272
9273 let Some(project) = &self.project else { return };
9274 let telemetry = project.read(cx).client().telemetry().clone();
9275 telemetry.log_edit_event("editor");
9276 }
9277 multi_buffer::Event::ExcerptsAdded {
9278 buffer,
9279 predecessor,
9280 excerpts,
9281 } => {
9282 cx.emit(EditorEvent::ExcerptsAdded {
9283 buffer: buffer.clone(),
9284 predecessor: *predecessor,
9285 excerpts: excerpts.clone(),
9286 });
9287 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9288 }
9289 multi_buffer::Event::ExcerptsRemoved { ids } => {
9290 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9291 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9292 }
9293 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9294 multi_buffer::Event::LanguageChanged => {
9295 cx.emit(EditorEvent::Reparsed);
9296 cx.notify();
9297 }
9298 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9299 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9300 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9301 cx.emit(EditorEvent::TitleChanged)
9302 }
9303 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9304 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9305 multi_buffer::Event::DiagnosticsUpdated => {
9306 self.refresh_active_diagnostics(cx);
9307 }
9308 _ => {}
9309 };
9310 }
9311
9312 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9313 cx.notify();
9314 }
9315
9316 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9317 self.refresh_copilot_suggestions(true, cx);
9318 self.refresh_inlay_hints(
9319 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9320 self.selections.newest_anchor().head(),
9321 &self.buffer.read(cx).snapshot(cx),
9322 cx,
9323 )),
9324 cx,
9325 );
9326 let editor_settings = EditorSettings::get_global(cx);
9327 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9328 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9329 cx.notify();
9330 }
9331
9332 pub fn set_searchable(&mut self, searchable: bool) {
9333 self.searchable = searchable;
9334 }
9335
9336 pub fn searchable(&self) -> bool {
9337 self.searchable
9338 }
9339
9340 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9341 self.open_excerpts_common(true, cx)
9342 }
9343
9344 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9345 self.open_excerpts_common(false, cx)
9346 }
9347
9348 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9349 let buffer = self.buffer.read(cx);
9350 if buffer.is_singleton() {
9351 cx.propagate();
9352 return;
9353 }
9354
9355 let Some(workspace) = self.workspace() else {
9356 cx.propagate();
9357 return;
9358 };
9359
9360 let mut new_selections_by_buffer = HashMap::default();
9361 for selection in self.selections.all::<usize>(cx) {
9362 for (buffer, mut range, _) in
9363 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9364 {
9365 if selection.reversed {
9366 mem::swap(&mut range.start, &mut range.end);
9367 }
9368 new_selections_by_buffer
9369 .entry(buffer)
9370 .or_insert(Vec::new())
9371 .push(range)
9372 }
9373 }
9374
9375 // We defer the pane interaction because we ourselves are a workspace item
9376 // and activating a new item causes the pane to call a method on us reentrantly,
9377 // which panics if we're on the stack.
9378 cx.window_context().defer(move |cx| {
9379 workspace.update(cx, |workspace, cx| {
9380 let pane = if split {
9381 workspace.adjacent_pane(cx)
9382 } else {
9383 workspace.active_pane().clone()
9384 };
9385 pane.update(cx, |pane, _| pane.disable_history());
9386
9387 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9388 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9389 editor.update(cx, |editor, cx| {
9390 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9391 s.select_ranges(ranges);
9392 });
9393 });
9394 }
9395
9396 pane.update(cx, |pane, _| pane.enable_history());
9397 })
9398 });
9399 }
9400
9401 fn jump(
9402 &mut self,
9403 path: ProjectPath,
9404 position: Point,
9405 anchor: language::Anchor,
9406 cx: &mut ViewContext<Self>,
9407 ) {
9408 let workspace = self.workspace();
9409 cx.spawn(|_, mut cx| async move {
9410 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9411 let editor = workspace.update(&mut cx, |workspace, cx| {
9412 workspace.open_path(path, None, true, cx)
9413 })?;
9414 let editor = editor
9415 .await?
9416 .downcast::<Editor>()
9417 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9418 .downgrade();
9419 editor.update(&mut cx, |editor, cx| {
9420 let buffer = editor
9421 .buffer()
9422 .read(cx)
9423 .as_singleton()
9424 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9425 let buffer = buffer.read(cx);
9426 let cursor = if buffer.can_resolve(&anchor) {
9427 language::ToPoint::to_point(&anchor, buffer)
9428 } else {
9429 buffer.clip_point(position, Bias::Left)
9430 };
9431
9432 let nav_history = editor.nav_history.take();
9433 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9434 s.select_ranges([cursor..cursor]);
9435 });
9436 editor.nav_history = nav_history;
9437
9438 anyhow::Ok(())
9439 })??;
9440
9441 anyhow::Ok(())
9442 })
9443 .detach_and_log_err(cx);
9444 }
9445
9446 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9447 let snapshot = self.buffer.read(cx).read(cx);
9448 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9449 Some(
9450 ranges
9451 .iter()
9452 .map(move |range| {
9453 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9454 })
9455 .collect(),
9456 )
9457 }
9458
9459 fn selection_replacement_ranges(
9460 &self,
9461 range: Range<OffsetUtf16>,
9462 cx: &AppContext,
9463 ) -> Vec<Range<OffsetUtf16>> {
9464 let selections = self.selections.all::<OffsetUtf16>(cx);
9465 let newest_selection = selections
9466 .iter()
9467 .max_by_key(|selection| selection.id)
9468 .unwrap();
9469 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9470 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9471 let snapshot = self.buffer.read(cx).read(cx);
9472 selections
9473 .into_iter()
9474 .map(|mut selection| {
9475 selection.start.0 =
9476 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9477 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9478 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9479 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9480 })
9481 .collect()
9482 }
9483
9484 fn report_copilot_event(
9485 &self,
9486 suggestion_id: Option<String>,
9487 suggestion_accepted: bool,
9488 cx: &AppContext,
9489 ) {
9490 let Some(project) = &self.project else { return };
9491
9492 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9493 let file_extension = self
9494 .buffer
9495 .read(cx)
9496 .as_singleton()
9497 .and_then(|b| b.read(cx).file())
9498 .and_then(|file| Path::new(file.file_name(cx)).extension())
9499 .and_then(|e| e.to_str())
9500 .map(|a| a.to_string());
9501
9502 let telemetry = project.read(cx).client().telemetry().clone();
9503
9504 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9505 }
9506
9507 #[cfg(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 }
9515
9516 #[cfg(not(any(test, feature = "test-support")))]
9517 fn report_editor_event(
9518 &self,
9519 operation: &'static str,
9520 file_extension: Option<String>,
9521 cx: &AppContext,
9522 ) {
9523 let Some(project) = &self.project else { return };
9524
9525 // If None, we are in a file without an extension
9526 let file = self
9527 .buffer
9528 .read(cx)
9529 .as_singleton()
9530 .and_then(|b| b.read(cx).file());
9531 let file_extension = file_extension.or(file
9532 .as_ref()
9533 .and_then(|file| Path::new(file.file_name(cx)).extension())
9534 .and_then(|e| e.to_str())
9535 .map(|a| a.to_string()));
9536
9537 let vim_mode = cx
9538 .global::<SettingsStore>()
9539 .raw_user_settings()
9540 .get("vim_mode")
9541 == Some(&serde_json::Value::Bool(true));
9542 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9543 let copilot_enabled_for_language = self
9544 .buffer
9545 .read(cx)
9546 .settings_at(0, cx)
9547 .show_copilot_suggestions;
9548
9549 let telemetry = project.read(cx).client().telemetry().clone();
9550 telemetry.report_editor_event(
9551 file_extension,
9552 vim_mode,
9553 operation,
9554 copilot_enabled,
9555 copilot_enabled_for_language,
9556 )
9557 }
9558
9559 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9560 /// with each line being an array of {text, highlight} objects.
9561 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9562 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9563 return;
9564 };
9565
9566 #[derive(Serialize)]
9567 struct Chunk<'a> {
9568 text: String,
9569 highlight: Option<&'a str>,
9570 }
9571
9572 let snapshot = buffer.read(cx).snapshot();
9573 let range = self
9574 .selected_text_range(cx)
9575 .and_then(|selected_range| {
9576 if selected_range.is_empty() {
9577 None
9578 } else {
9579 Some(selected_range)
9580 }
9581 })
9582 .unwrap_or_else(|| 0..snapshot.len());
9583
9584 let chunks = snapshot.chunks(range, true);
9585 let mut lines = Vec::new();
9586 let mut line: VecDeque<Chunk> = VecDeque::new();
9587
9588 let Some(style) = self.style.as_ref() else {
9589 return;
9590 };
9591
9592 for chunk in chunks {
9593 let highlight = chunk
9594 .syntax_highlight_id
9595 .and_then(|id| id.name(&style.syntax));
9596 let mut chunk_lines = chunk.text.split('\n').peekable();
9597 while let Some(text) = chunk_lines.next() {
9598 let mut merged_with_last_token = false;
9599 if let Some(last_token) = line.back_mut() {
9600 if last_token.highlight == highlight {
9601 last_token.text.push_str(text);
9602 merged_with_last_token = true;
9603 }
9604 }
9605
9606 if !merged_with_last_token {
9607 line.push_back(Chunk {
9608 text: text.into(),
9609 highlight,
9610 });
9611 }
9612
9613 if chunk_lines.peek().is_some() {
9614 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9615 line.pop_front();
9616 }
9617 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9618 line.pop_back();
9619 }
9620
9621 lines.push(mem::take(&mut line));
9622 }
9623 }
9624 }
9625
9626 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9627 return;
9628 };
9629 cx.write_to_clipboard(ClipboardItem::new(lines));
9630 }
9631
9632 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9633 &self.inlay_hint_cache
9634 }
9635
9636 pub fn replay_insert_event(
9637 &mut self,
9638 text: &str,
9639 relative_utf16_range: Option<Range<isize>>,
9640 cx: &mut ViewContext<Self>,
9641 ) {
9642 if !self.input_enabled {
9643 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9644 return;
9645 }
9646 if let Some(relative_utf16_range) = relative_utf16_range {
9647 let selections = self.selections.all::<OffsetUtf16>(cx);
9648 self.change_selections(None, cx, |s| {
9649 let new_ranges = selections.into_iter().map(|range| {
9650 let start = OffsetUtf16(
9651 range
9652 .head()
9653 .0
9654 .saturating_add_signed(relative_utf16_range.start),
9655 );
9656 let end = OffsetUtf16(
9657 range
9658 .head()
9659 .0
9660 .saturating_add_signed(relative_utf16_range.end),
9661 );
9662 start..end
9663 });
9664 s.select_ranges(new_ranges);
9665 });
9666 }
9667
9668 self.handle_input(text, cx);
9669 }
9670
9671 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9672 let Some(project) = self.project.as_ref() else {
9673 return false;
9674 };
9675 let project = project.read(cx);
9676
9677 let mut supports = false;
9678 self.buffer().read(cx).for_each_buffer(|buffer| {
9679 if !supports {
9680 supports = project
9681 .language_servers_for_buffer(buffer.read(cx), cx)
9682 .any(
9683 |(_, server)| match server.capabilities().inlay_hint_provider {
9684 Some(lsp::OneOf::Left(enabled)) => enabled,
9685 Some(lsp::OneOf::Right(_)) => true,
9686 None => false,
9687 },
9688 )
9689 }
9690 });
9691 supports
9692 }
9693
9694 pub fn focus(&self, cx: &mut WindowContext) {
9695 cx.focus(&self.focus_handle)
9696 }
9697
9698 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9699 self.focus_handle.is_focused(cx)
9700 }
9701
9702 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9703 cx.emit(EditorEvent::Focused);
9704
9705 if let Some(rename) = self.pending_rename.as_ref() {
9706 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9707 cx.focus(&rename_editor_focus_handle);
9708 } else {
9709 self.blink_manager.update(cx, BlinkManager::enable);
9710 self.show_cursor_names(cx);
9711 self.buffer.update(cx, |buffer, cx| {
9712 buffer.finalize_last_transaction(cx);
9713 if self.leader_peer_id.is_none() {
9714 buffer.set_active_selections(
9715 &self.selections.disjoint_anchors(),
9716 self.selections.line_mode,
9717 self.cursor_shape,
9718 cx,
9719 );
9720 }
9721 });
9722 }
9723 }
9724
9725 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9726 self.blink_manager.update(cx, BlinkManager::disable);
9727 self.buffer
9728 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9729 self.hide_context_menu(cx);
9730 hide_hover(self, cx);
9731 cx.emit(EditorEvent::Blurred);
9732 cx.notify();
9733 }
9734
9735 pub fn register_action<A: Action>(
9736 &mut self,
9737 listener: impl Fn(&A, &mut WindowContext) + 'static,
9738 ) -> &mut Self {
9739 let listener = Arc::new(listener);
9740
9741 self.editor_actions.push(Box::new(move |cx| {
9742 let _view = cx.view().clone();
9743 let cx = cx.window_context();
9744 let listener = listener.clone();
9745 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9746 let action = action.downcast_ref().unwrap();
9747 if phase == DispatchPhase::Bubble {
9748 listener(action, cx)
9749 }
9750 })
9751 }));
9752 self
9753 }
9754}
9755
9756pub trait CollaborationHub {
9757 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9758 fn user_participant_indices<'a>(
9759 &self,
9760 cx: &'a AppContext,
9761 ) -> &'a HashMap<u64, ParticipantIndex>;
9762 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9763}
9764
9765impl CollaborationHub for Model<Project> {
9766 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9767 self.read(cx).collaborators()
9768 }
9769
9770 fn user_participant_indices<'a>(
9771 &self,
9772 cx: &'a AppContext,
9773 ) -> &'a HashMap<u64, ParticipantIndex> {
9774 self.read(cx).user_store().read(cx).participant_indices()
9775 }
9776
9777 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9778 let this = self.read(cx);
9779 let user_ids = this.collaborators().values().map(|c| c.user_id);
9780 this.user_store().read_with(cx, |user_store, cx| {
9781 user_store.participant_names(user_ids, cx)
9782 })
9783 }
9784}
9785
9786pub trait CompletionProvider {
9787 fn completions(
9788 &self,
9789 buffer: &Model<Buffer>,
9790 buffer_position: text::Anchor,
9791 cx: &mut ViewContext<Editor>,
9792 ) -> Task<Result<Vec<Completion>>>;
9793
9794 fn resolve_completions(
9795 &self,
9796 completion_indices: Vec<usize>,
9797 completions: Arc<RwLock<Box<[Completion]>>>,
9798 cx: &mut ViewContext<Editor>,
9799 ) -> Task<Result<bool>>;
9800
9801 fn apply_additional_edits_for_completion(
9802 &self,
9803 buffer: Model<Buffer>,
9804 completion: Completion,
9805 push_to_history: bool,
9806 cx: &mut ViewContext<Editor>,
9807 ) -> Task<Result<Option<language::Transaction>>>;
9808}
9809
9810impl CompletionProvider for Model<Project> {
9811 fn completions(
9812 &self,
9813 buffer: &Model<Buffer>,
9814 buffer_position: text::Anchor,
9815 cx: &mut ViewContext<Editor>,
9816 ) -> Task<Result<Vec<Completion>>> {
9817 self.update(cx, |project, cx| {
9818 project.completions(&buffer, buffer_position, cx)
9819 })
9820 }
9821
9822 fn resolve_completions(
9823 &self,
9824 completion_indices: Vec<usize>,
9825 completions: Arc<RwLock<Box<[Completion]>>>,
9826 cx: &mut ViewContext<Editor>,
9827 ) -> Task<Result<bool>> {
9828 self.update(cx, |project, cx| {
9829 project.resolve_completions(completion_indices, completions, cx)
9830 })
9831 }
9832
9833 fn apply_additional_edits_for_completion(
9834 &self,
9835 buffer: Model<Buffer>,
9836 completion: Completion,
9837 push_to_history: bool,
9838 cx: &mut ViewContext<Editor>,
9839 ) -> Task<Result<Option<language::Transaction>>> {
9840 self.update(cx, |project, cx| {
9841 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9842 })
9843 }
9844}
9845
9846fn inlay_hint_settings(
9847 location: Anchor,
9848 snapshot: &MultiBufferSnapshot,
9849 cx: &mut ViewContext<'_, Editor>,
9850) -> InlayHintSettings {
9851 let file = snapshot.file_at(location);
9852 let language = snapshot.language_at(location);
9853 let settings = all_language_settings(file, cx);
9854 settings
9855 .language(language.map(|l| l.name()).as_deref())
9856 .inlay_hints
9857}
9858
9859fn consume_contiguous_rows(
9860 contiguous_row_selections: &mut Vec<Selection<Point>>,
9861 selection: &Selection<Point>,
9862 display_map: &DisplaySnapshot,
9863 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9864) -> (u32, u32) {
9865 contiguous_row_selections.push(selection.clone());
9866 let start_row = selection.start.row;
9867 let mut end_row = ending_row(selection, display_map);
9868
9869 while let Some(next_selection) = selections.peek() {
9870 if next_selection.start.row <= end_row {
9871 end_row = ending_row(next_selection, display_map);
9872 contiguous_row_selections.push(selections.next().unwrap().clone());
9873 } else {
9874 break;
9875 }
9876 }
9877 (start_row, end_row)
9878}
9879
9880fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9881 if next_selection.end.column > 0 || next_selection.is_empty() {
9882 display_map.next_line_boundary(next_selection.end).0.row + 1
9883 } else {
9884 next_selection.end.row
9885 }
9886}
9887
9888impl EditorSnapshot {
9889 pub fn remote_selections_in_range<'a>(
9890 &'a self,
9891 range: &'a Range<Anchor>,
9892 collaboration_hub: &dyn CollaborationHub,
9893 cx: &'a AppContext,
9894 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9895 let participant_names = collaboration_hub.user_names(cx);
9896 let participant_indices = collaboration_hub.user_participant_indices(cx);
9897 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9898 let collaborators_by_replica_id = collaborators_by_peer_id
9899 .iter()
9900 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9901 .collect::<HashMap<_, _>>();
9902 self.buffer_snapshot
9903 .remote_selections_in_range(range)
9904 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9905 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9906 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9907 let user_name = participant_names.get(&collaborator.user_id).cloned();
9908 Some(RemoteSelection {
9909 replica_id,
9910 selection,
9911 cursor_shape,
9912 line_mode,
9913 participant_index,
9914 peer_id: collaborator.peer_id,
9915 user_name,
9916 })
9917 })
9918 }
9919
9920 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9921 self.display_snapshot.buffer_snapshot.language_at(position)
9922 }
9923
9924 pub fn is_focused(&self) -> bool {
9925 self.is_focused
9926 }
9927
9928 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&Arc<str>> {
9929 self.placeholder_text.as_ref()
9930 }
9931
9932 pub fn scroll_position(&self) -> gpui::Point<f32> {
9933 self.scroll_anchor.scroll_position(&self.display_snapshot)
9934 }
9935
9936 pub fn gutter_dimensions(
9937 &self,
9938 font_id: FontId,
9939 font_size: Pixels,
9940 em_width: Pixels,
9941 max_line_number_width: Pixels,
9942 cx: &AppContext,
9943 ) -> GutterDimensions {
9944 if !self.show_gutter {
9945 return GutterDimensions::default();
9946 }
9947 let descent = cx.text_system().descent(font_id, font_size);
9948
9949 let show_git_gutter = matches!(
9950 ProjectSettings::get_global(cx).git.git_gutter,
9951 Some(GitGutterSetting::TrackedFiles)
9952 );
9953 let gutter_settings = EditorSettings::get_global(cx).gutter;
9954
9955 let line_gutter_width = if gutter_settings.line_numbers {
9956 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9957 let min_width_for_number_on_gutter = em_width * 4.0;
9958 max_line_number_width.max(min_width_for_number_on_gutter)
9959 } else {
9960 0.0.into()
9961 };
9962
9963 let left_padding = if gutter_settings.code_actions {
9964 em_width * 3.0
9965 } else if show_git_gutter && gutter_settings.line_numbers {
9966 em_width * 2.0
9967 } else if show_git_gutter || gutter_settings.line_numbers {
9968 em_width
9969 } else {
9970 px(0.)
9971 };
9972
9973 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9974 em_width * 4.0
9975 } else if gutter_settings.folds {
9976 em_width * 3.0
9977 } else if gutter_settings.line_numbers {
9978 em_width
9979 } else {
9980 px(0.)
9981 };
9982
9983 GutterDimensions {
9984 left_padding,
9985 right_padding,
9986 width: line_gutter_width + left_padding + right_padding,
9987 margin: -descent,
9988 }
9989 }
9990}
9991
9992impl Deref for EditorSnapshot {
9993 type Target = DisplaySnapshot;
9994
9995 fn deref(&self) -> &Self::Target {
9996 &self.display_snapshot
9997 }
9998}
9999
10000#[derive(Clone, Debug, PartialEq, Eq)]
10001pub enum EditorEvent {
10002 InputIgnored {
10003 text: Arc<str>,
10004 },
10005 InputHandled {
10006 utf16_range_to_replace: Option<Range<isize>>,
10007 text: Arc<str>,
10008 },
10009 ExcerptsAdded {
10010 buffer: Model<Buffer>,
10011 predecessor: ExcerptId,
10012 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10013 },
10014 ExcerptsRemoved {
10015 ids: Vec<ExcerptId>,
10016 },
10017 BufferEdited,
10018 Edited,
10019 Reparsed,
10020 Focused,
10021 Blurred,
10022 DirtyChanged,
10023 Saved,
10024 TitleChanged,
10025 DiffBaseChanged,
10026 SelectionsChanged {
10027 local: bool,
10028 },
10029 ScrollPositionChanged {
10030 local: bool,
10031 autoscroll: bool,
10032 },
10033 Closed,
10034}
10035
10036impl EventEmitter<EditorEvent> for Editor {}
10037
10038impl FocusableView for Editor {
10039 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10040 self.focus_handle.clone()
10041 }
10042}
10043
10044impl Render for Editor {
10045 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10046 let settings = ThemeSettings::get_global(cx);
10047 let text_style = match self.mode {
10048 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10049 color: cx.theme().colors().editor_foreground,
10050 font_family: settings.ui_font.family.clone(),
10051 font_features: settings.ui_font.features,
10052 font_size: rems(0.875).into(),
10053 font_weight: FontWeight::NORMAL,
10054 font_style: FontStyle::Normal,
10055 line_height: relative(settings.buffer_line_height.value()),
10056 background_color: None,
10057 underline: None,
10058 strikethrough: None,
10059 white_space: WhiteSpace::Normal,
10060 },
10061
10062 EditorMode::Full => TextStyle {
10063 color: cx.theme().colors().editor_foreground,
10064 font_family: settings.buffer_font.family.clone(),
10065 font_features: settings.buffer_font.features,
10066 font_size: settings.buffer_font_size(cx).into(),
10067 font_weight: FontWeight::NORMAL,
10068 font_style: FontStyle::Normal,
10069 line_height: relative(settings.buffer_line_height.value()),
10070 background_color: None,
10071 underline: None,
10072 strikethrough: None,
10073 white_space: WhiteSpace::Normal,
10074 },
10075 };
10076
10077 let background = match self.mode {
10078 EditorMode::SingleLine => cx.theme().system().transparent,
10079 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10080 EditorMode::Full => cx.theme().colors().editor_background,
10081 };
10082
10083 EditorElement::new(
10084 cx.view(),
10085 EditorStyle {
10086 background,
10087 local_player: cx.theme().players().local(),
10088 text: text_style,
10089 scrollbar_width: px(12.),
10090 syntax: cx.theme().syntax().clone(),
10091 status: cx.theme().status().clone(),
10092 inlays_style: HighlightStyle {
10093 color: Some(cx.theme().status().hint),
10094 ..HighlightStyle::default()
10095 },
10096 suggestions_style: HighlightStyle {
10097 color: Some(cx.theme().status().predictive),
10098 ..HighlightStyle::default()
10099 },
10100 },
10101 )
10102 }
10103}
10104
10105impl ViewInputHandler for Editor {
10106 fn text_for_range(
10107 &mut self,
10108 range_utf16: Range<usize>,
10109 cx: &mut ViewContext<Self>,
10110 ) -> Option<String> {
10111 Some(
10112 self.buffer
10113 .read(cx)
10114 .read(cx)
10115 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10116 .collect(),
10117 )
10118 }
10119
10120 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10121 // Prevent the IME menu from appearing when holding down an alphabetic key
10122 // while input is disabled.
10123 if !self.input_enabled {
10124 return None;
10125 }
10126
10127 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10128 Some(range.start.0..range.end.0)
10129 }
10130
10131 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10132 let snapshot = self.buffer.read(cx).read(cx);
10133 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10134 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10135 }
10136
10137 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10138 self.clear_highlights::<InputComposition>(cx);
10139 self.ime_transaction.take();
10140 }
10141
10142 fn replace_text_in_range(
10143 &mut self,
10144 range_utf16: Option<Range<usize>>,
10145 text: &str,
10146 cx: &mut ViewContext<Self>,
10147 ) {
10148 if !self.input_enabled {
10149 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10150 return;
10151 }
10152
10153 self.transact(cx, |this, cx| {
10154 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10155 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10156 Some(this.selection_replacement_ranges(range_utf16, cx))
10157 } else {
10158 this.marked_text_ranges(cx)
10159 };
10160
10161 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10162 let newest_selection_id = this.selections.newest_anchor().id;
10163 this.selections
10164 .all::<OffsetUtf16>(cx)
10165 .iter()
10166 .zip(ranges_to_replace.iter())
10167 .find_map(|(selection, range)| {
10168 if selection.id == newest_selection_id {
10169 Some(
10170 (range.start.0 as isize - selection.head().0 as isize)
10171 ..(range.end.0 as isize - selection.head().0 as isize),
10172 )
10173 } else {
10174 None
10175 }
10176 })
10177 });
10178
10179 cx.emit(EditorEvent::InputHandled {
10180 utf16_range_to_replace: range_to_replace,
10181 text: text.into(),
10182 });
10183
10184 if let Some(new_selected_ranges) = new_selected_ranges {
10185 this.change_selections(None, cx, |selections| {
10186 selections.select_ranges(new_selected_ranges)
10187 });
10188 this.backspace(&Default::default(), cx);
10189 }
10190
10191 this.handle_input(text, cx);
10192 });
10193
10194 if let Some(transaction) = self.ime_transaction {
10195 self.buffer.update(cx, |buffer, cx| {
10196 buffer.group_until_transaction(transaction, cx);
10197 });
10198 }
10199
10200 self.unmark_text(cx);
10201 }
10202
10203 fn replace_and_mark_text_in_range(
10204 &mut self,
10205 range_utf16: Option<Range<usize>>,
10206 text: &str,
10207 new_selected_range_utf16: Option<Range<usize>>,
10208 cx: &mut ViewContext<Self>,
10209 ) {
10210 if !self.input_enabled {
10211 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10212 return;
10213 }
10214
10215 let transaction = self.transact(cx, |this, cx| {
10216 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10217 let snapshot = this.buffer.read(cx).read(cx);
10218 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10219 for marked_range in &mut marked_ranges {
10220 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10221 marked_range.start.0 += relative_range_utf16.start;
10222 marked_range.start =
10223 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10224 marked_range.end =
10225 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10226 }
10227 }
10228 Some(marked_ranges)
10229 } else if let Some(range_utf16) = range_utf16 {
10230 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10231 Some(this.selection_replacement_ranges(range_utf16, cx))
10232 } else {
10233 None
10234 };
10235
10236 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10237 let newest_selection_id = this.selections.newest_anchor().id;
10238 this.selections
10239 .all::<OffsetUtf16>(cx)
10240 .iter()
10241 .zip(ranges_to_replace.iter())
10242 .find_map(|(selection, range)| {
10243 if selection.id == newest_selection_id {
10244 Some(
10245 (range.start.0 as isize - selection.head().0 as isize)
10246 ..(range.end.0 as isize - selection.head().0 as isize),
10247 )
10248 } else {
10249 None
10250 }
10251 })
10252 });
10253
10254 cx.emit(EditorEvent::InputHandled {
10255 utf16_range_to_replace: range_to_replace,
10256 text: text.into(),
10257 });
10258
10259 if let Some(ranges) = ranges_to_replace {
10260 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10261 }
10262
10263 let marked_ranges = {
10264 let snapshot = this.buffer.read(cx).read(cx);
10265 this.selections
10266 .disjoint_anchors()
10267 .iter()
10268 .map(|selection| {
10269 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10270 })
10271 .collect::<Vec<_>>()
10272 };
10273
10274 if text.is_empty() {
10275 this.unmark_text(cx);
10276 } else {
10277 this.highlight_text::<InputComposition>(
10278 marked_ranges.clone(),
10279 HighlightStyle {
10280 underline: Some(UnderlineStyle {
10281 thickness: px(1.),
10282 color: None,
10283 wavy: false,
10284 }),
10285 ..Default::default()
10286 },
10287 cx,
10288 );
10289 }
10290
10291 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10292 let use_autoclose = this.use_autoclose;
10293 this.set_use_autoclose(false);
10294 this.handle_input(text, cx);
10295 this.set_use_autoclose(use_autoclose);
10296
10297 if let Some(new_selected_range) = new_selected_range_utf16 {
10298 let snapshot = this.buffer.read(cx).read(cx);
10299 let new_selected_ranges = marked_ranges
10300 .into_iter()
10301 .map(|marked_range| {
10302 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10303 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10304 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10305 snapshot.clip_offset_utf16(new_start, Bias::Left)
10306 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10307 })
10308 .collect::<Vec<_>>();
10309
10310 drop(snapshot);
10311 this.change_selections(None, cx, |selections| {
10312 selections.select_ranges(new_selected_ranges)
10313 });
10314 }
10315 });
10316
10317 self.ime_transaction = self.ime_transaction.or(transaction);
10318 if let Some(transaction) = self.ime_transaction {
10319 self.buffer.update(cx, |buffer, cx| {
10320 buffer.group_until_transaction(transaction, cx);
10321 });
10322 }
10323
10324 if self.text_highlights::<InputComposition>(cx).is_none() {
10325 self.ime_transaction.take();
10326 }
10327 }
10328
10329 fn bounds_for_range(
10330 &mut self,
10331 range_utf16: Range<usize>,
10332 element_bounds: gpui::Bounds<Pixels>,
10333 cx: &mut ViewContext<Self>,
10334 ) -> Option<gpui::Bounds<Pixels>> {
10335 let text_layout_details = self.text_layout_details(cx);
10336 let style = &text_layout_details.editor_style;
10337 let font_id = cx.text_system().resolve_font(&style.text.font());
10338 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10339 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10340 let em_width = cx
10341 .text_system()
10342 .typographic_bounds(font_id, font_size, 'm')
10343 .unwrap()
10344 .size
10345 .width;
10346
10347 let snapshot = self.snapshot(cx);
10348 let scroll_position = snapshot.scroll_position();
10349 let scroll_left = scroll_position.x * em_width;
10350
10351 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10352 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10353 + self.gutter_width;
10354 let y = line_height * (start.row() as f32 - scroll_position.y);
10355
10356 Some(Bounds {
10357 origin: element_bounds.origin + point(x, y),
10358 size: size(em_width, line_height),
10359 })
10360 }
10361}
10362
10363trait SelectionExt {
10364 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10365 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10366 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10367 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10368 -> Range<u32>;
10369}
10370
10371impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10372 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10373 let start = self.start.to_point(buffer);
10374 let end = self.end.to_point(buffer);
10375 if self.reversed {
10376 end..start
10377 } else {
10378 start..end
10379 }
10380 }
10381
10382 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10383 let start = self.start.to_offset(buffer);
10384 let end = self.end.to_offset(buffer);
10385 if self.reversed {
10386 end..start
10387 } else {
10388 start..end
10389 }
10390 }
10391
10392 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10393 let start = self
10394 .start
10395 .to_point(&map.buffer_snapshot)
10396 .to_display_point(map);
10397 let end = self
10398 .end
10399 .to_point(&map.buffer_snapshot)
10400 .to_display_point(map);
10401 if self.reversed {
10402 end..start
10403 } else {
10404 start..end
10405 }
10406 }
10407
10408 fn spanned_rows(
10409 &self,
10410 include_end_if_at_line_start: bool,
10411 map: &DisplaySnapshot,
10412 ) -> Range<u32> {
10413 let start = self.start.to_point(&map.buffer_snapshot);
10414 let mut end = self.end.to_point(&map.buffer_snapshot);
10415 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10416 end.row -= 1;
10417 }
10418
10419 let buffer_start = map.prev_line_boundary(start).0;
10420 let buffer_end = map.next_line_boundary(end).0;
10421 buffer_start.row..buffer_end.row + 1
10422 }
10423}
10424
10425impl<T: InvalidationRegion> InvalidationStack<T> {
10426 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10427 where
10428 S: Clone + ToOffset,
10429 {
10430 while let Some(region) = self.last() {
10431 let all_selections_inside_invalidation_ranges =
10432 if selections.len() == region.ranges().len() {
10433 selections
10434 .iter()
10435 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10436 .all(|(selection, invalidation_range)| {
10437 let head = selection.head().to_offset(buffer);
10438 invalidation_range.start <= head && invalidation_range.end >= head
10439 })
10440 } else {
10441 false
10442 };
10443
10444 if all_selections_inside_invalidation_ranges {
10445 break;
10446 } else {
10447 self.pop();
10448 }
10449 }
10450 }
10451}
10452
10453impl<T> Default for InvalidationStack<T> {
10454 fn default() -> Self {
10455 Self(Default::default())
10456 }
10457}
10458
10459impl<T> Deref for InvalidationStack<T> {
10460 type Target = Vec<T>;
10461
10462 fn deref(&self) -> &Self::Target {
10463 &self.0
10464 }
10465}
10466
10467impl<T> DerefMut for InvalidationStack<T> {
10468 fn deref_mut(&mut self) -> &mut Self::Target {
10469 &mut self.0
10470 }
10471}
10472
10473impl InvalidationRegion for SnippetState {
10474 fn ranges(&self) -> &[Range<Anchor>] {
10475 &self.ranges[self.active_index]
10476 }
10477}
10478
10479pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10480 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10481
10482 Arc::new(move |cx: &mut BlockContext| {
10483 let group_id: SharedString = cx.block_id.to_string().into();
10484
10485 let mut text_style = cx.text_style().clone();
10486 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10487
10488 h_flex()
10489 .id(cx.block_id)
10490 .group(group_id.clone())
10491 .relative()
10492 .size_full()
10493 .pl(cx.gutter_dimensions.width)
10494 .w(cx.max_width + cx.gutter_dimensions.width)
10495 .child(
10496 div()
10497 .flex()
10498 .w(cx.anchor_x - cx.gutter_dimensions.width)
10499 .flex_shrink(),
10500 )
10501 .child(div().flex().flex_shrink_0().child(
10502 StyledText::new(text_without_backticks.clone()).with_highlights(
10503 &text_style,
10504 code_ranges.iter().map(|range| {
10505 (
10506 range.clone(),
10507 HighlightStyle {
10508 font_weight: Some(FontWeight::BOLD),
10509 ..Default::default()
10510 },
10511 )
10512 }),
10513 ),
10514 ))
10515 .child(
10516 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10517 .icon_color(Color::Muted)
10518 .size(ButtonSize::Compact)
10519 .style(ButtonStyle::Transparent)
10520 .visible_on_hover(group_id)
10521 .on_click({
10522 let message = diagnostic.message.clone();
10523 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10524 })
10525 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10526 )
10527 .into_any_element()
10528 })
10529}
10530
10531pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10532 let mut text_without_backticks = String::new();
10533 let mut code_ranges = Vec::new();
10534
10535 if let Some(source) = &diagnostic.source {
10536 text_without_backticks.push_str(&source);
10537 code_ranges.push(0..source.len());
10538 text_without_backticks.push_str(": ");
10539 }
10540
10541 let mut prev_offset = 0;
10542 let mut in_code_block = false;
10543 for (ix, _) in diagnostic
10544 .message
10545 .match_indices('`')
10546 .chain([(diagnostic.message.len(), "")])
10547 {
10548 let prev_len = text_without_backticks.len();
10549 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10550 prev_offset = ix + 1;
10551 if in_code_block {
10552 code_ranges.push(prev_len..text_without_backticks.len());
10553 in_code_block = false;
10554 } else {
10555 in_code_block = true;
10556 }
10557 }
10558
10559 (text_without_backticks.into(), code_ranges)
10560}
10561
10562fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10563 match (severity, valid) {
10564 (DiagnosticSeverity::ERROR, true) => colors.error,
10565 (DiagnosticSeverity::ERROR, false) => colors.error,
10566 (DiagnosticSeverity::WARNING, true) => colors.warning,
10567 (DiagnosticSeverity::WARNING, false) => colors.warning,
10568 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10569 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10570 (DiagnosticSeverity::HINT, true) => colors.info,
10571 (DiagnosticSeverity::HINT, false) => colors.info,
10572 _ => colors.ignored,
10573 }
10574}
10575
10576pub fn styled_runs_for_code_label<'a>(
10577 label: &'a CodeLabel,
10578 syntax_theme: &'a theme::SyntaxTheme,
10579) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10580 let fade_out = HighlightStyle {
10581 fade_out: Some(0.35),
10582 ..Default::default()
10583 };
10584
10585 let mut prev_end = label.filter_range.end;
10586 label
10587 .runs
10588 .iter()
10589 .enumerate()
10590 .flat_map(move |(ix, (range, highlight_id))| {
10591 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10592 style
10593 } else {
10594 return Default::default();
10595 };
10596 let mut muted_style = style;
10597 muted_style.highlight(fade_out);
10598
10599 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10600 if range.start >= label.filter_range.end {
10601 if range.start > prev_end {
10602 runs.push((prev_end..range.start, fade_out));
10603 }
10604 runs.push((range.clone(), muted_style));
10605 } else if range.end <= label.filter_range.end {
10606 runs.push((range.clone(), style));
10607 } else {
10608 runs.push((range.start..label.filter_range.end, style));
10609 runs.push((label.filter_range.end..range.end, muted_style));
10610 }
10611 prev_end = cmp::max(prev_end, range.end);
10612
10613 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10614 runs.push((prev_end..label.text.len(), fade_out));
10615 }
10616
10617 runs
10618 })
10619}
10620
10621pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10622 let mut index = 0;
10623 let mut codepoints = text.char_indices().peekable();
10624
10625 std::iter::from_fn(move || {
10626 let start_index = index;
10627 while let Some((new_index, codepoint)) = codepoints.next() {
10628 index = new_index + codepoint.len_utf8();
10629 let current_upper = codepoint.is_uppercase();
10630 let next_upper = codepoints
10631 .peek()
10632 .map(|(_, c)| c.is_uppercase())
10633 .unwrap_or(false);
10634
10635 if !current_upper && next_upper {
10636 return Some(&text[start_index..index]);
10637 }
10638 }
10639
10640 index = text.len();
10641 if start_index < text.len() {
10642 return Some(&text[start_index..]);
10643 }
10644 None
10645 })
10646 .flat_map(|word| word.split_inclusive('_'))
10647 .flat_map(|word| word.split_inclusive('-'))
10648}
10649
10650trait RangeToAnchorExt {
10651 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10652}
10653
10654impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10655 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10656 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10657 }
10658}