1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::project_settings::{GitGutterSetting, ProjectSettings};
92use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
93use rand::prelude::*;
94use rpc::proto::*;
95use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
96use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
97use serde::{Deserialize, Serialize};
98use settings::{Settings, SettingsStore};
99use smallvec::SmallVec;
100use snippet::Snippet;
101use std::{
102 any::TypeId,
103 borrow::Cow,
104 cmp::{self, Ordering, Reverse},
105 mem,
106 num::NonZeroU32,
107 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
108 path::Path,
109 sync::Arc,
110 time::{Duration, Instant},
111};
112pub use sum_tree::Bias;
113use sum_tree::TreeMap;
114use text::{BufferId, OffsetUtf16, Rope};
115use theme::{
116 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
117 ThemeColors, ThemeSettings,
118};
119use ui::{
120 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
121 Tooltip,
122};
123use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
124use workspace::Toast;
125use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
126
127use crate::hover_links::find_url;
128
129const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
130const MAX_LINE_LEN: usize = 1024;
131const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
132const MAX_SELECTION_HISTORY_LEN: usize = 1024;
133const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
134pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
135#[doc(hidden)]
136pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
137#[doc(hidden)]
138pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
139
140pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
141
142pub fn render_parsed_markdown(
143 element_id: impl Into<ElementId>,
144 parsed: &language::ParsedMarkdown,
145 editor_style: &EditorStyle,
146 workspace: Option<WeakView<Workspace>>,
147 cx: &mut ViewContext<Editor>,
148) -> InteractiveText {
149 let code_span_background_color = cx
150 .theme()
151 .colors()
152 .editor_document_highlight_read_background;
153
154 let highlights = gpui::combine_highlights(
155 parsed.highlights.iter().filter_map(|(range, highlight)| {
156 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
157 Some((range.clone(), highlight))
158 }),
159 parsed
160 .regions
161 .iter()
162 .zip(&parsed.region_ranges)
163 .filter_map(|(region, range)| {
164 if region.code {
165 Some((
166 range.clone(),
167 HighlightStyle {
168 background_color: Some(code_span_background_color),
169 ..Default::default()
170 },
171 ))
172 } else {
173 None
174 }
175 }),
176 );
177
178 let mut links = Vec::new();
179 let mut link_ranges = Vec::new();
180 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
181 if let Some(link) = region.link.clone() {
182 links.push(link);
183 link_ranges.push(range.clone());
184 }
185 }
186
187 InteractiveText::new(
188 element_id,
189 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
190 )
191 .on_click(link_ranges, move |clicked_range_ix, cx| {
192 match &links[clicked_range_ix] {
193 markdown::Link::Web { url } => cx.open_url(url),
194 markdown::Link::Path { path } => {
195 if let Some(workspace) = &workspace {
196 _ = workspace.update(cx, |workspace, cx| {
197 workspace.open_abs_path(path.clone(), false, cx).detach();
198 });
199 }
200 }
201 }
202 })
203}
204
205#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
206pub(crate) enum InlayId {
207 Suggestion(usize),
208 Hint(usize),
209}
210
211impl InlayId {
212 fn id(&self) -> usize {
213 match self {
214 Self::Suggestion(id) => *id,
215 Self::Hint(id) => *id,
216 }
217 }
218}
219
220enum DocumentHighlightRead {}
221enum DocumentHighlightWrite {}
222enum InputComposition {}
223
224#[derive(Copy, Clone, PartialEq, Eq)]
225pub enum Direction {
226 Prev,
227 Next,
228}
229
230pub fn init_settings(cx: &mut AppContext) {
231 EditorSettings::register(cx);
232}
233
234pub fn init(cx: &mut AppContext) {
235 init_settings(cx);
236
237 workspace::register_project_item::<Editor>(cx);
238 workspace::register_followable_item::<Editor>(cx);
239 workspace::register_deserializable_item::<Editor>(cx);
240 cx.observe_new_views(
241 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
242 workspace.register_action(Editor::new_file);
243 workspace.register_action(Editor::new_file_in_direction);
244 },
245 )
246 .detach();
247
248 cx.on_action(move |_: &workspace::NewFile, cx| {
249 let app_state = workspace::AppState::global(cx);
250 if let Some(app_state) = app_state.upgrade() {
251 workspace::open_new(&app_state, cx, |workspace, cx| {
252 Editor::new_file(workspace, &Default::default(), cx)
253 })
254 .detach();
255 }
256 });
257 cx.on_action(move |_: &workspace::NewWindow, cx| {
258 let app_state = workspace::AppState::global(cx);
259 if let Some(app_state) = app_state.upgrade() {
260 workspace::open_new(&app_state, cx, |workspace, cx| {
261 Editor::new_file(workspace, &Default::default(), cx)
262 })
263 .detach();
264 }
265 });
266}
267
268trait InvalidationRegion {
269 fn ranges(&self) -> &[Range<Anchor>];
270}
271
272#[derive(Clone, Debug, PartialEq)]
273pub enum SelectPhase {
274 Begin {
275 position: DisplayPoint,
276 add: bool,
277 click_count: usize,
278 },
279 BeginColumnar {
280 position: DisplayPoint,
281 goal_column: u32,
282 },
283 Extend {
284 position: DisplayPoint,
285 click_count: usize,
286 },
287 Update {
288 position: DisplayPoint,
289 goal_column: u32,
290 scroll_delta: gpui::Point<f32>,
291 },
292 End,
293}
294
295#[derive(Clone, Debug)]
296pub enum SelectMode {
297 Character,
298 Word(Range<Anchor>),
299 Line(Range<Anchor>),
300 All,
301}
302
303#[derive(Copy, Clone, PartialEq, Eq, Debug)]
304pub enum EditorMode {
305 SingleLine,
306 AutoHeight { max_lines: usize },
307 Full,
308}
309
310#[derive(Clone, Debug)]
311pub enum SoftWrap {
312 None,
313 EditorWidth,
314 Column(u32),
315}
316
317#[derive(Clone)]
318pub struct EditorStyle {
319 pub background: Hsla,
320 pub local_player: PlayerColor,
321 pub text: TextStyle,
322 pub scrollbar_width: Pixels,
323 pub syntax: Arc<SyntaxTheme>,
324 pub status: StatusColors,
325 pub inlays_style: HighlightStyle,
326 pub suggestions_style: HighlightStyle,
327}
328
329impl Default for EditorStyle {
330 fn default() -> Self {
331 Self {
332 background: Hsla::default(),
333 local_player: PlayerColor::default(),
334 text: TextStyle::default(),
335 scrollbar_width: Pixels::default(),
336 syntax: Default::default(),
337 // HACK: Status colors don't have a real default.
338 // We should look into removing the status colors from the editor
339 // style and retrieve them directly from the theme.
340 status: StatusColors::dark(),
341 inlays_style: HighlightStyle::default(),
342 suggestions_style: HighlightStyle::default(),
343 }
344 }
345}
346
347type CompletionId = usize;
348
349// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
350// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
351
352type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
353type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
354
355/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
356///
357/// See the [module level documentation](self) for more information.
358pub struct Editor {
359 handle: WeakView<Self>,
360 focus_handle: FocusHandle,
361 /// The text buffer being edited
362 buffer: Model<MultiBuffer>,
363 /// Map of how text in the buffer should be displayed.
364 /// Handles soft wraps, folds, fake inlay text insertions, etc.
365 display_map: Model<DisplayMap>,
366 pub selections: SelectionsCollection,
367 pub scroll_manager: ScrollManager,
368 columnar_selection_tail: Option<Anchor>,
369 add_selections_state: Option<AddSelectionsState>,
370 select_next_state: Option<SelectNextState>,
371 select_prev_state: Option<SelectNextState>,
372 selection_history: SelectionHistory,
373 autoclose_regions: Vec<AutocloseRegion>,
374 snippet_stack: InvalidationStack<SnippetState>,
375 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
376 ime_transaction: Option<TransactionId>,
377 active_diagnostics: Option<ActiveDiagnosticGroup>,
378 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
379 project: Option<Model<Project>>,
380 completion_provider: Option<Box<dyn CompletionProvider>>,
381 collaboration_hub: Option<Box<dyn CollaborationHub>>,
382 blink_manager: Model<BlinkManager>,
383 show_cursor_names: bool,
384 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
385 pub show_local_selections: bool,
386 mode: EditorMode,
387 show_breadcrumbs: bool,
388 show_gutter: bool,
389 show_wrap_guides: Option<bool>,
390 placeholder_text: Option<Arc<str>>,
391 highlighted_rows: Option<Range<u32>>,
392 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
393 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
394 nav_history: Option<ItemNavHistory>,
395 context_menu: RwLock<Option<ContextMenu>>,
396 mouse_context_menu: Option<MouseContextMenu>,
397 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
398 next_completion_id: CompletionId,
399 completion_documentation_pre_resolve_debounce: DebouncedDelay,
400 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
401 code_actions_task: Option<Task<()>>,
402 document_highlights_task: Option<Task<()>>,
403 pending_rename: Option<RenameState>,
404 searchable: bool,
405 cursor_shape: CursorShape,
406 collapse_matches: bool,
407 autoindent_mode: Option<AutoindentMode>,
408 workspace: Option<(WeakView<Workspace>, i64)>,
409 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
410 input_enabled: bool,
411 use_modal_editing: bool,
412 read_only: bool,
413 leader_peer_id: Option<PeerId>,
414 remote_id: Option<ViewId>,
415 hover_state: HoverState,
416 gutter_hovered: bool,
417 hovered_link_state: Option<HoveredLinkState>,
418 copilot_state: CopilotState,
419 inlay_hint_cache: InlayHintCache,
420 next_inlay_id: usize,
421 _subscriptions: Vec<Subscription>,
422 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
423 gutter_width: Pixels,
424 style: Option<EditorStyle>,
425 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
426 show_copilot_suggestions: bool,
427 use_autoclose: bool,
428 custom_context_menu: Option<
429 Box<
430 dyn 'static
431 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
432 >,
433 >,
434}
435
436pub struct EditorSnapshot {
437 pub mode: EditorMode,
438 show_gutter: bool,
439 pub display_snapshot: DisplaySnapshot,
440 pub placeholder_text: Option<Arc<str>>,
441 is_focused: bool,
442 scroll_anchor: ScrollAnchor,
443 ongoing_scroll: OngoingScroll,
444}
445
446pub struct GutterDimensions {
447 pub left_padding: Pixels,
448 pub right_padding: Pixels,
449 pub width: Pixels,
450 pub margin: Pixels,
451}
452
453impl Default for GutterDimensions {
454 fn default() -> Self {
455 Self {
456 left_padding: Pixels::ZERO,
457 right_padding: Pixels::ZERO,
458 width: Pixels::ZERO,
459 margin: Pixels::ZERO,
460 }
461 }
462}
463
464#[derive(Debug)]
465pub struct RemoteSelection {
466 pub replica_id: ReplicaId,
467 pub selection: Selection<Anchor>,
468 pub cursor_shape: CursorShape,
469 pub peer_id: PeerId,
470 pub line_mode: bool,
471 pub participant_index: Option<ParticipantIndex>,
472 pub user_name: Option<SharedString>,
473}
474
475#[derive(Clone, Debug)]
476struct SelectionHistoryEntry {
477 selections: Arc<[Selection<Anchor>]>,
478 select_next_state: Option<SelectNextState>,
479 select_prev_state: Option<SelectNextState>,
480 add_selections_state: Option<AddSelectionsState>,
481}
482
483enum SelectionHistoryMode {
484 Normal,
485 Undoing,
486 Redoing,
487}
488
489#[derive(Clone, PartialEq, Eq, Hash)]
490struct HoveredCursor {
491 replica_id: u16,
492 selection_id: usize,
493}
494
495impl Default for SelectionHistoryMode {
496 fn default() -> Self {
497 Self::Normal
498 }
499}
500
501#[derive(Default)]
502struct SelectionHistory {
503 #[allow(clippy::type_complexity)]
504 selections_by_transaction:
505 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
506 mode: SelectionHistoryMode,
507 undo_stack: VecDeque<SelectionHistoryEntry>,
508 redo_stack: VecDeque<SelectionHistoryEntry>,
509}
510
511impl SelectionHistory {
512 fn insert_transaction(
513 &mut self,
514 transaction_id: TransactionId,
515 selections: Arc<[Selection<Anchor>]>,
516 ) {
517 self.selections_by_transaction
518 .insert(transaction_id, (selections, None));
519 }
520
521 #[allow(clippy::type_complexity)]
522 fn transaction(
523 &self,
524 transaction_id: TransactionId,
525 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
526 self.selections_by_transaction.get(&transaction_id)
527 }
528
529 #[allow(clippy::type_complexity)]
530 fn transaction_mut(
531 &mut self,
532 transaction_id: TransactionId,
533 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
534 self.selections_by_transaction.get_mut(&transaction_id)
535 }
536
537 fn push(&mut self, entry: SelectionHistoryEntry) {
538 if !entry.selections.is_empty() {
539 match self.mode {
540 SelectionHistoryMode::Normal => {
541 self.push_undo(entry);
542 self.redo_stack.clear();
543 }
544 SelectionHistoryMode::Undoing => self.push_redo(entry),
545 SelectionHistoryMode::Redoing => self.push_undo(entry),
546 }
547 }
548 }
549
550 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
551 if self
552 .undo_stack
553 .back()
554 .map_or(true, |e| e.selections != entry.selections)
555 {
556 self.undo_stack.push_back(entry);
557 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
558 self.undo_stack.pop_front();
559 }
560 }
561 }
562
563 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
564 if self
565 .redo_stack
566 .back()
567 .map_or(true, |e| e.selections != entry.selections)
568 {
569 self.redo_stack.push_back(entry);
570 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
571 self.redo_stack.pop_front();
572 }
573 }
574 }
575}
576
577#[derive(Clone, Debug)]
578struct AddSelectionsState {
579 above: bool,
580 stack: Vec<usize>,
581}
582
583#[derive(Clone)]
584struct SelectNextState {
585 query: AhoCorasick,
586 wordwise: bool,
587 done: bool,
588}
589
590impl std::fmt::Debug for SelectNextState {
591 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
592 f.debug_struct(std::any::type_name::<Self>())
593 .field("wordwise", &self.wordwise)
594 .field("done", &self.done)
595 .finish()
596 }
597}
598
599#[derive(Debug)]
600struct AutocloseRegion {
601 selection_id: usize,
602 range: Range<Anchor>,
603 pair: BracketPair,
604}
605
606#[derive(Debug)]
607struct SnippetState {
608 ranges: Vec<Vec<Range<Anchor>>>,
609 active_index: usize,
610}
611
612#[doc(hidden)]
613pub struct RenameState {
614 pub range: Range<Anchor>,
615 pub old_name: Arc<str>,
616 pub editor: View<Editor>,
617 block_id: BlockId,
618}
619
620struct InvalidationStack<T>(Vec<T>);
621
622enum ContextMenu {
623 Completions(CompletionsMenu),
624 CodeActions(CodeActionsMenu),
625}
626
627impl ContextMenu {
628 fn select_first(
629 &mut self,
630 project: Option<&Model<Project>>,
631 cx: &mut ViewContext<Editor>,
632 ) -> bool {
633 if self.visible() {
634 match self {
635 ContextMenu::Completions(menu) => menu.select_first(project, cx),
636 ContextMenu::CodeActions(menu) => menu.select_first(cx),
637 }
638 true
639 } else {
640 false
641 }
642 }
643
644 fn select_prev(
645 &mut self,
646 project: Option<&Model<Project>>,
647 cx: &mut ViewContext<Editor>,
648 ) -> bool {
649 if self.visible() {
650 match self {
651 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
652 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
653 }
654 true
655 } else {
656 false
657 }
658 }
659
660 fn select_next(
661 &mut self,
662 project: Option<&Model<Project>>,
663 cx: &mut ViewContext<Editor>,
664 ) -> bool {
665 if self.visible() {
666 match self {
667 ContextMenu::Completions(menu) => menu.select_next(project, cx),
668 ContextMenu::CodeActions(menu) => menu.select_next(cx),
669 }
670 true
671 } else {
672 false
673 }
674 }
675
676 fn select_last(
677 &mut self,
678 project: Option<&Model<Project>>,
679 cx: &mut ViewContext<Editor>,
680 ) -> bool {
681 if self.visible() {
682 match self {
683 ContextMenu::Completions(menu) => menu.select_last(project, cx),
684 ContextMenu::CodeActions(menu) => menu.select_last(cx),
685 }
686 true
687 } else {
688 false
689 }
690 }
691
692 fn visible(&self) -> bool {
693 match self {
694 ContextMenu::Completions(menu) => menu.visible(),
695 ContextMenu::CodeActions(menu) => menu.visible(),
696 }
697 }
698
699 fn render(
700 &self,
701 cursor_position: DisplayPoint,
702 style: &EditorStyle,
703 max_height: Pixels,
704 workspace: Option<WeakView<Workspace>>,
705 cx: &mut ViewContext<Editor>,
706 ) -> (DisplayPoint, AnyElement) {
707 match self {
708 ContextMenu::Completions(menu) => (
709 cursor_position,
710 menu.render(style, max_height, workspace, cx),
711 ),
712 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
713 }
714 }
715}
716
717#[derive(Clone)]
718struct CompletionsMenu {
719 id: CompletionId,
720 initial_position: Anchor,
721 buffer: Model<Buffer>,
722 completions: Arc<RwLock<Box<[Completion]>>>,
723 match_candidates: Arc<[StringMatchCandidate]>,
724 matches: Arc<[StringMatch]>,
725 selected_item: usize,
726 scroll_handle: UniformListScrollHandle,
727 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
728}
729
730impl CompletionsMenu {
731 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
732 self.selected_item = 0;
733 self.scroll_handle.scroll_to_item(self.selected_item);
734 self.attempt_resolve_selected_completion_documentation(project, cx);
735 cx.notify();
736 }
737
738 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
739 if self.selected_item > 0 {
740 self.selected_item -= 1;
741 } else {
742 self.selected_item = self.matches.len() - 1;
743 }
744 self.scroll_handle.scroll_to_item(self.selected_item);
745 self.attempt_resolve_selected_completion_documentation(project, cx);
746 cx.notify();
747 }
748
749 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
750 if self.selected_item + 1 < self.matches.len() {
751 self.selected_item += 1;
752 } else {
753 self.selected_item = 0;
754 }
755 self.scroll_handle.scroll_to_item(self.selected_item);
756 self.attempt_resolve_selected_completion_documentation(project, cx);
757 cx.notify();
758 }
759
760 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
761 self.selected_item = self.matches.len() - 1;
762 self.scroll_handle.scroll_to_item(self.selected_item);
763 self.attempt_resolve_selected_completion_documentation(project, cx);
764 cx.notify();
765 }
766
767 fn pre_resolve_completion_documentation(
768 completions: Arc<RwLock<Box<[Completion]>>>,
769 matches: Arc<[StringMatch]>,
770 editor: &Editor,
771 cx: &mut ViewContext<Editor>,
772 ) -> Task<()> {
773 let settings = EditorSettings::get_global(cx);
774 if !settings.show_completion_documentation {
775 return Task::ready(());
776 }
777
778 let Some(provider) = editor.completion_provider.as_ref() else {
779 return Task::ready(());
780 };
781
782 let resolve_task = provider.resolve_completions(
783 matches.iter().map(|m| m.candidate_id).collect(),
784 completions.clone(),
785 cx,
786 );
787
788 return cx.spawn(move |this, mut cx| async move {
789 if let Some(true) = resolve_task.await.log_err() {
790 this.update(&mut cx, |_, cx| cx.notify()).ok();
791 }
792 });
793 }
794
795 fn attempt_resolve_selected_completion_documentation(
796 &mut self,
797 project: Option<&Model<Project>>,
798 cx: &mut ViewContext<Editor>,
799 ) {
800 let settings = EditorSettings::get_global(cx);
801 if !settings.show_completion_documentation {
802 return;
803 }
804
805 let completion_index = self.matches[self.selected_item].candidate_id;
806 let Some(project) = project else {
807 return;
808 };
809
810 let resolve_task = project.update(cx, |project, cx| {
811 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
812 });
813
814 let delay_ms =
815 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
816 let delay = Duration::from_millis(delay_ms);
817
818 self.selected_completion_documentation_resolve_debounce
819 .lock()
820 .fire_new(delay, cx, |_, cx| {
821 cx.spawn(move |this, mut cx| async move {
822 if let Some(true) = resolve_task.await.log_err() {
823 this.update(&mut cx, |_, cx| cx.notify()).ok();
824 }
825 })
826 });
827 }
828
829 fn visible(&self) -> bool {
830 !self.matches.is_empty()
831 }
832
833 fn render(
834 &self,
835 style: &EditorStyle,
836 max_height: Pixels,
837 workspace: Option<WeakView<Workspace>>,
838 cx: &mut ViewContext<Editor>,
839 ) -> AnyElement {
840 let settings = EditorSettings::get_global(cx);
841 let show_completion_documentation = settings.show_completion_documentation;
842
843 let widest_completion_ix = self
844 .matches
845 .iter()
846 .enumerate()
847 .max_by_key(|(_, mat)| {
848 let completions = self.completions.read();
849 let completion = &completions[mat.candidate_id];
850 let documentation = &completion.documentation;
851
852 let mut len = completion.label.text.chars().count();
853 if let Some(Documentation::SingleLine(text)) = documentation {
854 if show_completion_documentation {
855 len += text.chars().count();
856 }
857 }
858
859 len
860 })
861 .map(|(ix, _)| ix);
862
863 let completions = self.completions.clone();
864 let matches = self.matches.clone();
865 let selected_item = self.selected_item;
866 let style = style.clone();
867
868 let multiline_docs = if show_completion_documentation {
869 let mat = &self.matches[selected_item];
870 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
871 Some(Documentation::MultiLinePlainText(text)) => {
872 Some(div().child(SharedString::from(text.clone())))
873 }
874 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
875 Some(div().child(render_parsed_markdown(
876 "completions_markdown",
877 parsed,
878 &style,
879 workspace,
880 cx,
881 )))
882 }
883 _ => None,
884 };
885 multiline_docs.map(|div| {
886 div.id("multiline_docs")
887 .max_h(max_height)
888 .flex_1()
889 .px_1p5()
890 .py_1()
891 .min_w(px(260.))
892 .max_w(px(640.))
893 .w(px(500.))
894 .overflow_y_scroll()
895 // Prevent a mouse down on documentation from being propagated to the editor,
896 // because that would move the cursor.
897 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
898 })
899 } else {
900 None
901 };
902
903 let list = uniform_list(
904 cx.view().clone(),
905 "completions",
906 matches.len(),
907 move |_editor, range, cx| {
908 let start_ix = range.start;
909 let completions_guard = completions.read();
910
911 matches[range]
912 .iter()
913 .enumerate()
914 .map(|(ix, mat)| {
915 let item_ix = start_ix + ix;
916 let candidate_id = mat.candidate_id;
917 let completion = &completions_guard[candidate_id];
918
919 let documentation = if show_completion_documentation {
920 &completion.documentation
921 } else {
922 &None
923 };
924
925 let highlights = gpui::combine_highlights(
926 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
927 styled_runs_for_code_label(&completion.label, &style.syntax).map(
928 |(range, mut highlight)| {
929 // Ignore font weight for syntax highlighting, as we'll use it
930 // for fuzzy matches.
931 highlight.font_weight = None;
932 (range, highlight)
933 },
934 ),
935 );
936 let completion_label = StyledText::new(completion.label.text.clone())
937 .with_highlights(&style.text, highlights);
938 let documentation_label =
939 if let Some(Documentation::SingleLine(text)) = documentation {
940 if text.trim().is_empty() {
941 None
942 } else {
943 Some(
944 h_flex().ml_4().child(
945 Label::new(text.clone())
946 .size(LabelSize::Small)
947 .color(Color::Muted),
948 ),
949 )
950 }
951 } else {
952 None
953 };
954
955 div().min_w(px(220.)).max_w(px(540.)).child(
956 ListItem::new(mat.candidate_id)
957 .inset(true)
958 .selected(item_ix == selected_item)
959 .on_click(cx.listener(move |editor, _event, cx| {
960 cx.stop_propagation();
961 editor
962 .confirm_completion(
963 &ConfirmCompletion {
964 item_ix: Some(item_ix),
965 },
966 cx,
967 )
968 .map(|task| task.detach_and_log_err(cx));
969 }))
970 .child(h_flex().overflow_hidden().child(completion_label))
971 .end_slot::<Div>(documentation_label),
972 )
973 })
974 .collect()
975 },
976 )
977 .max_h(max_height)
978 .track_scroll(self.scroll_handle.clone())
979 .with_width_from_item(widest_completion_ix);
980
981 Popover::new()
982 .child(list)
983 .when_some(multiline_docs, |popover, multiline_docs| {
984 popover.aside(multiline_docs)
985 })
986 .into_any_element()
987 }
988
989 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
990 let mut matches = if let Some(query) = query {
991 fuzzy::match_strings(
992 &self.match_candidates,
993 query,
994 query.chars().any(|c| c.is_uppercase()),
995 100,
996 &Default::default(),
997 executor,
998 )
999 .await
1000 } else {
1001 self.match_candidates
1002 .iter()
1003 .enumerate()
1004 .map(|(candidate_id, candidate)| StringMatch {
1005 candidate_id,
1006 score: Default::default(),
1007 positions: Default::default(),
1008 string: candidate.string.clone(),
1009 })
1010 .collect()
1011 };
1012
1013 // Remove all candidates where the query's start does not match the start of any word in the candidate
1014 if let Some(query) = query {
1015 if let Some(query_start) = query.chars().next() {
1016 matches.retain(|string_match| {
1017 split_words(&string_match.string).any(|word| {
1018 // Check that the first codepoint of the word as lowercase matches the first
1019 // codepoint of the query as lowercase
1020 word.chars()
1021 .flat_map(|codepoint| codepoint.to_lowercase())
1022 .zip(query_start.to_lowercase())
1023 .all(|(word_cp, query_cp)| word_cp == query_cp)
1024 })
1025 });
1026 }
1027 }
1028
1029 let completions = self.completions.read();
1030 matches.sort_unstable_by_key(|mat| {
1031 // We do want to strike a balance here between what the language server tells us
1032 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1033 // `Creat` and there is a local variable called `CreateComponent`).
1034 // So what we do is: we bucket all matches into two buckets
1035 // - Strong matches
1036 // - Weak matches
1037 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1038 // and the Weak matches are the rest.
1039 //
1040 // For the strong matches, we sort by the language-servers score first and for the weak
1041 // matches, we prefer our fuzzy finder first.
1042 //
1043 // The thinking behind that: it's useless to take the sort_text the language-server gives
1044 // us into account when it's obviously a bad match.
1045
1046 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1047 enum MatchScore<'a> {
1048 Strong {
1049 sort_text: Option<&'a str>,
1050 score: Reverse<OrderedFloat<f64>>,
1051 sort_key: (usize, &'a str),
1052 },
1053 Weak {
1054 score: Reverse<OrderedFloat<f64>>,
1055 sort_text: Option<&'a str>,
1056 sort_key: (usize, &'a str),
1057 },
1058 }
1059
1060 let completion = &completions[mat.candidate_id];
1061 let sort_key = completion.sort_key();
1062 let sort_text = completion.lsp_completion.sort_text.as_deref();
1063 let score = Reverse(OrderedFloat(mat.score));
1064
1065 if mat.score >= 0.2 {
1066 MatchScore::Strong {
1067 sort_text,
1068 score,
1069 sort_key,
1070 }
1071 } else {
1072 MatchScore::Weak {
1073 score,
1074 sort_text,
1075 sort_key,
1076 }
1077 }
1078 });
1079
1080 for mat in &mut matches {
1081 let completion = &completions[mat.candidate_id];
1082 mat.string = completion.label.text.clone();
1083 for position in &mut mat.positions {
1084 *position += completion.label.filter_range.start;
1085 }
1086 }
1087 drop(completions);
1088
1089 self.matches = matches.into();
1090 self.selected_item = 0;
1091 }
1092}
1093
1094#[derive(Clone)]
1095struct CodeActionsMenu {
1096 actions: Arc<[CodeAction]>,
1097 buffer: Model<Buffer>,
1098 selected_item: usize,
1099 scroll_handle: UniformListScrollHandle,
1100 deployed_from_indicator: bool,
1101}
1102
1103impl CodeActionsMenu {
1104 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1105 self.selected_item = 0;
1106 self.scroll_handle.scroll_to_item(self.selected_item);
1107 cx.notify()
1108 }
1109
1110 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1111 if self.selected_item > 0 {
1112 self.selected_item -= 1;
1113 } else {
1114 self.selected_item = self.actions.len() - 1;
1115 }
1116 self.scroll_handle.scroll_to_item(self.selected_item);
1117 cx.notify();
1118 }
1119
1120 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1121 if self.selected_item + 1 < self.actions.len() {
1122 self.selected_item += 1;
1123 } else {
1124 self.selected_item = 0;
1125 }
1126 self.scroll_handle.scroll_to_item(self.selected_item);
1127 cx.notify();
1128 }
1129
1130 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1131 self.selected_item = self.actions.len() - 1;
1132 self.scroll_handle.scroll_to_item(self.selected_item);
1133 cx.notify()
1134 }
1135
1136 fn visible(&self) -> bool {
1137 !self.actions.is_empty()
1138 }
1139
1140 fn render(
1141 &self,
1142 mut cursor_position: DisplayPoint,
1143 _style: &EditorStyle,
1144 max_height: Pixels,
1145 cx: &mut ViewContext<Editor>,
1146 ) -> (DisplayPoint, AnyElement) {
1147 let actions = self.actions.clone();
1148 let selected_item = self.selected_item;
1149
1150 let element = uniform_list(
1151 cx.view().clone(),
1152 "code_actions_menu",
1153 self.actions.len(),
1154 move |_this, range, cx| {
1155 actions[range.clone()]
1156 .iter()
1157 .enumerate()
1158 .map(|(ix, action)| {
1159 let item_ix = range.start + ix;
1160 let selected = selected_item == item_ix;
1161 let colors = cx.theme().colors();
1162 div()
1163 .px_2()
1164 .text_color(colors.text)
1165 .when(selected, |style| {
1166 style
1167 .bg(colors.element_active)
1168 .text_color(colors.text_accent)
1169 })
1170 .hover(|style| {
1171 style
1172 .bg(colors.element_hover)
1173 .text_color(colors.text_accent)
1174 })
1175 .on_mouse_down(
1176 MouseButton::Left,
1177 cx.listener(move |editor, _, cx| {
1178 cx.stop_propagation();
1179 editor
1180 .confirm_code_action(
1181 &ConfirmCodeAction {
1182 item_ix: Some(item_ix),
1183 },
1184 cx,
1185 )
1186 .map(|task| task.detach_and_log_err(cx));
1187 }),
1188 )
1189 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1190 .child(SharedString::from(action.lsp_action.title.clone()))
1191 })
1192 .collect()
1193 },
1194 )
1195 .elevation_1(cx)
1196 .px_2()
1197 .py_1()
1198 .max_h(max_height)
1199 .track_scroll(self.scroll_handle.clone())
1200 .with_width_from_item(
1201 self.actions
1202 .iter()
1203 .enumerate()
1204 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1205 .map(|(ix, _)| ix),
1206 )
1207 .into_any_element();
1208
1209 if self.deployed_from_indicator {
1210 *cursor_position.column_mut() = 0;
1211 }
1212
1213 (cursor_position, element)
1214 }
1215}
1216
1217pub(crate) struct CopilotState {
1218 excerpt_id: Option<ExcerptId>,
1219 pending_refresh: Task<Option<()>>,
1220 pending_cycling_refresh: Task<Option<()>>,
1221 cycled: bool,
1222 completions: Vec<copilot::Completion>,
1223 active_completion_index: usize,
1224 suggestion: Option<Inlay>,
1225}
1226
1227impl Default for CopilotState {
1228 fn default() -> Self {
1229 Self {
1230 excerpt_id: None,
1231 pending_cycling_refresh: Task::ready(Some(())),
1232 pending_refresh: Task::ready(Some(())),
1233 completions: Default::default(),
1234 active_completion_index: 0,
1235 cycled: false,
1236 suggestion: None,
1237 }
1238 }
1239}
1240
1241impl CopilotState {
1242 fn active_completion(&self) -> Option<&copilot::Completion> {
1243 self.completions.get(self.active_completion_index)
1244 }
1245
1246 fn text_for_active_completion(
1247 &self,
1248 cursor: Anchor,
1249 buffer: &MultiBufferSnapshot,
1250 ) -> Option<&str> {
1251 use language::ToOffset as _;
1252
1253 let completion = self.active_completion()?;
1254 let excerpt_id = self.excerpt_id?;
1255 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1256 if excerpt_id != cursor.excerpt_id
1257 || !completion.range.start.is_valid(completion_buffer)
1258 || !completion.range.end.is_valid(completion_buffer)
1259 {
1260 return None;
1261 }
1262
1263 let mut completion_range = completion.range.to_offset(&completion_buffer);
1264 let prefix_len = Self::common_prefix(
1265 completion_buffer.chars_for_range(completion_range.clone()),
1266 completion.text.chars(),
1267 );
1268 completion_range.start += prefix_len;
1269 let suffix_len = Self::common_prefix(
1270 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1271 completion.text[prefix_len..].chars().rev(),
1272 );
1273 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1274
1275 if completion_range.is_empty()
1276 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1277 {
1278 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1279 if completion_text.trim().is_empty() {
1280 None
1281 } else {
1282 Some(completion_text)
1283 }
1284 } else {
1285 None
1286 }
1287 }
1288
1289 fn cycle_completions(&mut self, direction: Direction) {
1290 match direction {
1291 Direction::Prev => {
1292 self.active_completion_index = if self.active_completion_index == 0 {
1293 self.completions.len().saturating_sub(1)
1294 } else {
1295 self.active_completion_index - 1
1296 };
1297 }
1298 Direction::Next => {
1299 if self.completions.len() == 0 {
1300 self.active_completion_index = 0
1301 } else {
1302 self.active_completion_index =
1303 (self.active_completion_index + 1) % self.completions.len();
1304 }
1305 }
1306 }
1307 }
1308
1309 fn push_completion(&mut self, new_completion: copilot::Completion) {
1310 for completion in &self.completions {
1311 if completion.text == new_completion.text && completion.range == new_completion.range {
1312 return;
1313 }
1314 }
1315 self.completions.push(new_completion);
1316 }
1317
1318 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1319 a.zip(b)
1320 .take_while(|(a, b)| a == b)
1321 .map(|(a, _)| a.len_utf8())
1322 .sum()
1323 }
1324}
1325
1326#[derive(Debug)]
1327struct ActiveDiagnosticGroup {
1328 primary_range: Range<Anchor>,
1329 primary_message: String,
1330 blocks: HashMap<BlockId, Diagnostic>,
1331 is_valid: bool,
1332}
1333
1334#[derive(Serialize, Deserialize)]
1335pub struct ClipboardSelection {
1336 pub len: usize,
1337 pub is_entire_line: bool,
1338 pub first_line_indent: u32,
1339}
1340
1341#[derive(Debug)]
1342pub(crate) struct NavigationData {
1343 cursor_anchor: Anchor,
1344 cursor_position: Point,
1345 scroll_anchor: ScrollAnchor,
1346 scroll_top_row: u32,
1347}
1348
1349enum GotoDefinitionKind {
1350 Symbol,
1351 Type,
1352 Implementation,
1353}
1354
1355#[derive(Debug, Clone)]
1356enum InlayHintRefreshReason {
1357 Toggle(bool),
1358 SettingsChange(InlayHintSettings),
1359 NewLinesShown,
1360 BufferEdited(HashSet<Arc<Language>>),
1361 RefreshRequested,
1362 ExcerptsRemoved(Vec<ExcerptId>),
1363}
1364impl InlayHintRefreshReason {
1365 fn description(&self) -> &'static str {
1366 match self {
1367 Self::Toggle(_) => "toggle",
1368 Self::SettingsChange(_) => "settings change",
1369 Self::NewLinesShown => "new lines shown",
1370 Self::BufferEdited(_) => "buffer edited",
1371 Self::RefreshRequested => "refresh requested",
1372 Self::ExcerptsRemoved(_) => "excerpts removed",
1373 }
1374 }
1375}
1376
1377impl Editor {
1378 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1379 let buffer = cx.new_model(|cx| {
1380 Buffer::new(
1381 0,
1382 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1383 String::new(),
1384 )
1385 });
1386 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1387 Self::new(EditorMode::SingleLine, buffer, None, cx)
1388 }
1389
1390 pub fn multi_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::Full, buffer, None, cx)
1400 }
1401
1402 pub fn auto_height(max_lines: usize, 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::AutoHeight { max_lines }, buffer, None, cx)
1412 }
1413
1414 pub fn for_buffer(
1415 buffer: Model<Buffer>,
1416 project: Option<Model<Project>>,
1417 cx: &mut ViewContext<Self>,
1418 ) -> Self {
1419 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1420 Self::new(EditorMode::Full, buffer, project, cx)
1421 }
1422
1423 pub fn for_multibuffer(
1424 buffer: Model<MultiBuffer>,
1425 project: Option<Model<Project>>,
1426 cx: &mut ViewContext<Self>,
1427 ) -> Self {
1428 Self::new(EditorMode::Full, buffer, project, cx)
1429 }
1430
1431 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1432 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1433 self.display_map.update(cx, |display_map, cx| {
1434 let snapshot = display_map.snapshot(cx);
1435 clone.display_map.update(cx, |display_map, cx| {
1436 display_map.set_state(&snapshot, cx);
1437 });
1438 });
1439 clone.selections.clone_state(&self.selections);
1440 clone.scroll_manager.clone_state(&self.scroll_manager);
1441 clone.searchable = self.searchable;
1442 clone
1443 }
1444
1445 fn new(
1446 mode: EditorMode,
1447 buffer: Model<MultiBuffer>,
1448 project: Option<Model<Project>>,
1449 cx: &mut ViewContext<Self>,
1450 ) -> Self {
1451 let style = cx.text_style();
1452 let font_size = style.font_size.to_pixels(cx.rem_size());
1453 let display_map = cx.new_model(|cx| {
1454 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1455 });
1456
1457 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1458
1459 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1460
1461 let soft_wrap_mode_override =
1462 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1463
1464 let mut project_subscriptions = Vec::new();
1465 if mode == EditorMode::Full {
1466 if let Some(project) = project.as_ref() {
1467 if buffer.read(cx).is_singleton() {
1468 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1469 cx.emit(EditorEvent::TitleChanged);
1470 }));
1471 }
1472 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1473 if let project::Event::RefreshInlayHints = event {
1474 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1475 };
1476 }));
1477 }
1478 }
1479
1480 let inlay_hint_settings = inlay_hint_settings(
1481 selections.newest_anchor().head(),
1482 &buffer.read(cx).snapshot(cx),
1483 cx,
1484 );
1485
1486 let focus_handle = cx.focus_handle();
1487 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1488 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1489
1490 let mut this = Self {
1491 handle: cx.view().downgrade(),
1492 focus_handle,
1493 buffer: buffer.clone(),
1494 display_map: display_map.clone(),
1495 selections,
1496 scroll_manager: ScrollManager::new(cx),
1497 columnar_selection_tail: None,
1498 add_selections_state: None,
1499 select_next_state: None,
1500 select_prev_state: None,
1501 selection_history: Default::default(),
1502 autoclose_regions: Default::default(),
1503 snippet_stack: Default::default(),
1504 select_larger_syntax_node_stack: Vec::new(),
1505 ime_transaction: Default::default(),
1506 active_diagnostics: None,
1507 soft_wrap_mode_override,
1508 completion_provider: project.clone().map(|project| Box::new(project) as _),
1509 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1510 project,
1511 blink_manager: blink_manager.clone(),
1512 show_local_selections: true,
1513 mode,
1514 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1515 show_gutter: mode == EditorMode::Full,
1516 show_wrap_guides: None,
1517 placeholder_text: None,
1518 highlighted_rows: None,
1519 background_highlights: Default::default(),
1520 inlay_background_highlights: Default::default(),
1521 nav_history: None,
1522 context_menu: RwLock::new(None),
1523 mouse_context_menu: None,
1524 completion_tasks: Default::default(),
1525 next_completion_id: 0,
1526 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1527 next_inlay_id: 0,
1528 available_code_actions: Default::default(),
1529 code_actions_task: Default::default(),
1530 document_highlights_task: Default::default(),
1531 pending_rename: Default::default(),
1532 searchable: true,
1533 cursor_shape: Default::default(),
1534 autoindent_mode: Some(AutoindentMode::EachLine),
1535 collapse_matches: false,
1536 workspace: None,
1537 keymap_context_layers: Default::default(),
1538 input_enabled: true,
1539 use_modal_editing: mode == EditorMode::Full,
1540 read_only: false,
1541 use_autoclose: true,
1542 leader_peer_id: None,
1543 remote_id: None,
1544 hover_state: Default::default(),
1545 hovered_link_state: Default::default(),
1546 copilot_state: Default::default(),
1547 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1548 gutter_hovered: false,
1549 pixel_position_of_newest_cursor: None,
1550 gutter_width: Default::default(),
1551 style: None,
1552 show_cursor_names: false,
1553 hovered_cursors: Default::default(),
1554 editor_actions: Default::default(),
1555 show_copilot_suggestions: mode == EditorMode::Full,
1556 custom_context_menu: None,
1557 _subscriptions: vec![
1558 cx.observe(&buffer, Self::on_buffer_changed),
1559 cx.subscribe(&buffer, Self::on_buffer_event),
1560 cx.observe(&display_map, Self::on_display_map_changed),
1561 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1562 cx.observe_global::<SettingsStore>(Self::settings_changed),
1563 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1564 cx.observe_window_activation(|editor, cx| {
1565 let active = cx.is_window_active();
1566 editor.blink_manager.update(cx, |blink_manager, cx| {
1567 if active {
1568 blink_manager.enable(cx);
1569 } else {
1570 blink_manager.show_cursor(cx);
1571 blink_manager.disable(cx);
1572 }
1573 });
1574 }),
1575 ],
1576 };
1577
1578 this._subscriptions.extend(project_subscriptions);
1579
1580 this.end_selection(cx);
1581 this.scroll_manager.show_scrollbar(cx);
1582
1583 if mode == EditorMode::Full {
1584 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1585 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1586 }
1587
1588 this.report_editor_event("open", None, cx);
1589 this
1590 }
1591
1592 fn key_context(&self, cx: &AppContext) -> KeyContext {
1593 let mut key_context = KeyContext::default();
1594 key_context.add("Editor");
1595 let mode = match self.mode {
1596 EditorMode::SingleLine => "single_line",
1597 EditorMode::AutoHeight { .. } => "auto_height",
1598 EditorMode::Full => "full",
1599 };
1600 key_context.set("mode", mode);
1601 if self.pending_rename.is_some() {
1602 key_context.add("renaming");
1603 }
1604 if self.context_menu_visible() {
1605 match self.context_menu.read().as_ref() {
1606 Some(ContextMenu::Completions(_)) => {
1607 key_context.add("menu");
1608 key_context.add("showing_completions")
1609 }
1610 Some(ContextMenu::CodeActions(_)) => {
1611 key_context.add("menu");
1612 key_context.add("showing_code_actions")
1613 }
1614 None => {}
1615 }
1616 }
1617
1618 for layer in self.keymap_context_layers.values() {
1619 key_context.extend(layer);
1620 }
1621
1622 if let Some(extension) = self
1623 .buffer
1624 .read(cx)
1625 .as_singleton()
1626 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1627 {
1628 key_context.set("extension", extension.to_string());
1629 }
1630
1631 key_context
1632 }
1633
1634 pub fn new_file(
1635 workspace: &mut Workspace,
1636 _: &workspace::NewFile,
1637 cx: &mut ViewContext<Workspace>,
1638 ) {
1639 let project = workspace.project().clone();
1640 if project.read(cx).is_remote() {
1641 cx.propagate();
1642 } else if let Some(buffer) = project
1643 .update(cx, |project, cx| project.create_buffer("", None, cx))
1644 .log_err()
1645 {
1646 workspace.add_item(
1647 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1648 cx,
1649 );
1650 }
1651 }
1652
1653 pub fn new_file_in_direction(
1654 workspace: &mut Workspace,
1655 action: &workspace::NewFileInDirection,
1656 cx: &mut ViewContext<Workspace>,
1657 ) {
1658 let project = workspace.project().clone();
1659 if project.read(cx).is_remote() {
1660 cx.propagate();
1661 } else if let Some(buffer) = project
1662 .update(cx, |project, cx| project.create_buffer("", None, cx))
1663 .log_err()
1664 {
1665 workspace.split_item(
1666 action.0,
1667 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1668 cx,
1669 );
1670 }
1671 }
1672
1673 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1674 self.buffer.read(cx).replica_id()
1675 }
1676
1677 pub fn leader_peer_id(&self) -> Option<PeerId> {
1678 self.leader_peer_id
1679 }
1680
1681 pub fn buffer(&self) -> &Model<MultiBuffer> {
1682 &self.buffer
1683 }
1684
1685 pub fn workspace(&self) -> Option<View<Workspace>> {
1686 self.workspace.as_ref()?.0.upgrade()
1687 }
1688
1689 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1690 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1691 }
1692
1693 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1694 self.buffer().read(cx).title(cx)
1695 }
1696
1697 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1698 EditorSnapshot {
1699 mode: self.mode,
1700 show_gutter: self.show_gutter,
1701 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1702 scroll_anchor: self.scroll_manager.anchor(),
1703 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1704 placeholder_text: self.placeholder_text.clone(),
1705 is_focused: self.focus_handle.is_focused(cx),
1706 }
1707 }
1708
1709 pub fn language_at<'a, T: ToOffset>(
1710 &self,
1711 point: T,
1712 cx: &'a AppContext,
1713 ) -> Option<Arc<Language>> {
1714 self.buffer.read(cx).language_at(point, cx)
1715 }
1716
1717 pub fn file_at<'a, T: ToOffset>(
1718 &self,
1719 point: T,
1720 cx: &'a AppContext,
1721 ) -> Option<Arc<dyn language::File>> {
1722 self.buffer.read(cx).read(cx).file_at(point).cloned()
1723 }
1724
1725 pub fn active_excerpt(
1726 &self,
1727 cx: &AppContext,
1728 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1729 self.buffer
1730 .read(cx)
1731 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1732 }
1733
1734 pub fn mode(&self) -> EditorMode {
1735 self.mode
1736 }
1737
1738 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1739 self.collaboration_hub.as_deref()
1740 }
1741
1742 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1743 self.collaboration_hub = Some(hub);
1744 }
1745
1746 pub fn set_custom_context_menu(
1747 &mut self,
1748 f: impl 'static
1749 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1750 ) {
1751 self.custom_context_menu = Some(Box::new(f))
1752 }
1753
1754 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1755 self.completion_provider = Some(hub);
1756 }
1757
1758 pub fn placeholder_text(&self) -> Option<&str> {
1759 self.placeholder_text.as_deref()
1760 }
1761
1762 pub fn set_placeholder_text(
1763 &mut self,
1764 placeholder_text: impl Into<Arc<str>>,
1765 cx: &mut ViewContext<Self>,
1766 ) {
1767 let placeholder_text = Some(placeholder_text.into());
1768 if self.placeholder_text != placeholder_text {
1769 self.placeholder_text = placeholder_text;
1770 cx.notify();
1771 }
1772 }
1773
1774 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1775 self.cursor_shape = cursor_shape;
1776 cx.notify();
1777 }
1778
1779 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1780 self.collapse_matches = collapse_matches;
1781 }
1782
1783 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1784 if self.collapse_matches {
1785 return range.start..range.start;
1786 }
1787 range.clone()
1788 }
1789
1790 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1791 if self.display_map.read(cx).clip_at_line_ends != clip {
1792 self.display_map
1793 .update(cx, |map, _| map.clip_at_line_ends = clip);
1794 }
1795 }
1796
1797 pub fn set_keymap_context_layer<Tag: 'static>(
1798 &mut self,
1799 context: KeyContext,
1800 cx: &mut ViewContext<Self>,
1801 ) {
1802 self.keymap_context_layers
1803 .insert(TypeId::of::<Tag>(), context);
1804 cx.notify();
1805 }
1806
1807 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1808 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1809 cx.notify();
1810 }
1811
1812 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1813 self.input_enabled = input_enabled;
1814 }
1815
1816 pub fn set_autoindent(&mut self, autoindent: bool) {
1817 if autoindent {
1818 self.autoindent_mode = Some(AutoindentMode::EachLine);
1819 } else {
1820 self.autoindent_mode = None;
1821 }
1822 }
1823
1824 pub fn read_only(&self, cx: &AppContext) -> bool {
1825 self.read_only || self.buffer.read(cx).read_only()
1826 }
1827
1828 pub fn set_read_only(&mut self, read_only: bool) {
1829 self.read_only = read_only;
1830 }
1831
1832 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1833 self.use_autoclose = autoclose;
1834 }
1835
1836 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1837 self.show_copilot_suggestions = show_copilot_suggestions;
1838 }
1839
1840 pub fn set_use_modal_editing(&mut self, to: bool) {
1841 self.use_modal_editing = to;
1842 }
1843
1844 pub fn use_modal_editing(&self) -> bool {
1845 self.use_modal_editing
1846 }
1847
1848 fn selections_did_change(
1849 &mut self,
1850 local: bool,
1851 old_cursor_position: &Anchor,
1852 cx: &mut ViewContext<Self>,
1853 ) {
1854 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1855 self.buffer.update(cx, |buffer, cx| {
1856 buffer.set_active_selections(
1857 &self.selections.disjoint_anchors(),
1858 self.selections.line_mode,
1859 self.cursor_shape,
1860 cx,
1861 )
1862 });
1863 }
1864
1865 let display_map = self
1866 .display_map
1867 .update(cx, |display_map, cx| display_map.snapshot(cx));
1868 let buffer = &display_map.buffer_snapshot;
1869 self.add_selections_state = None;
1870 self.select_next_state = None;
1871 self.select_prev_state = None;
1872 self.select_larger_syntax_node_stack.clear();
1873 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1874 self.snippet_stack
1875 .invalidate(&self.selections.disjoint_anchors(), buffer);
1876 self.take_rename(false, cx);
1877
1878 let new_cursor_position = self.selections.newest_anchor().head();
1879
1880 self.push_to_nav_history(
1881 old_cursor_position.clone(),
1882 Some(new_cursor_position.to_point(buffer)),
1883 cx,
1884 );
1885
1886 if local {
1887 let new_cursor_position = self.selections.newest_anchor().head();
1888 let mut context_menu = self.context_menu.write();
1889 let completion_menu = match context_menu.as_ref() {
1890 Some(ContextMenu::Completions(menu)) => Some(menu),
1891
1892 _ => {
1893 *context_menu = None;
1894 None
1895 }
1896 };
1897
1898 if let Some(completion_menu) = completion_menu {
1899 let cursor_position = new_cursor_position.to_offset(buffer);
1900 let (word_range, kind) =
1901 buffer.surrounding_word(completion_menu.initial_position.clone());
1902 if kind == Some(CharKind::Word)
1903 && word_range.to_inclusive().contains(&cursor_position)
1904 {
1905 let mut completion_menu = completion_menu.clone();
1906 drop(context_menu);
1907
1908 let query = Self::completion_query(buffer, cursor_position);
1909 cx.spawn(move |this, mut cx| async move {
1910 completion_menu
1911 .filter(query.as_deref(), cx.background_executor().clone())
1912 .await;
1913
1914 this.update(&mut cx, |this, cx| {
1915 let mut context_menu = this.context_menu.write();
1916 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1917 return;
1918 };
1919
1920 if menu.id > completion_menu.id {
1921 return;
1922 }
1923
1924 *context_menu = Some(ContextMenu::Completions(completion_menu));
1925 drop(context_menu);
1926 cx.notify();
1927 })
1928 })
1929 .detach();
1930
1931 self.show_completions(&ShowCompletions, cx);
1932 } else {
1933 drop(context_menu);
1934 self.hide_context_menu(cx);
1935 }
1936 } else {
1937 drop(context_menu);
1938 }
1939
1940 hide_hover(self, cx);
1941
1942 if old_cursor_position.to_display_point(&display_map).row()
1943 != new_cursor_position.to_display_point(&display_map).row()
1944 {
1945 self.available_code_actions.take();
1946 }
1947 self.refresh_code_actions(cx);
1948 self.refresh_document_highlights(cx);
1949 refresh_matching_bracket_highlights(self, cx);
1950 self.discard_copilot_suggestion(cx);
1951 }
1952
1953 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1954 cx.emit(EditorEvent::SelectionsChanged { local });
1955
1956 if self.selections.disjoint_anchors().len() == 1 {
1957 cx.emit(SearchEvent::ActiveMatchChanged)
1958 }
1959
1960 cx.notify();
1961 }
1962
1963 pub fn change_selections<R>(
1964 &mut self,
1965 autoscroll: Option<Autoscroll>,
1966 cx: &mut ViewContext<Self>,
1967 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1968 ) -> R {
1969 let old_cursor_position = self.selections.newest_anchor().head();
1970 self.push_to_selection_history();
1971
1972 let (changed, result) = self.selections.change_with(cx, change);
1973
1974 if changed {
1975 if let Some(autoscroll) = autoscroll {
1976 self.request_autoscroll(autoscroll, cx);
1977 }
1978 self.selections_did_change(true, &old_cursor_position, cx);
1979 }
1980
1981 result
1982 }
1983
1984 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1985 where
1986 I: IntoIterator<Item = (Range<S>, T)>,
1987 S: ToOffset,
1988 T: Into<Arc<str>>,
1989 {
1990 if self.read_only(cx) {
1991 return;
1992 }
1993
1994 self.buffer
1995 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1996 }
1997
1998 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1999 where
2000 I: IntoIterator<Item = (Range<S>, T)>,
2001 S: ToOffset,
2002 T: Into<Arc<str>>,
2003 {
2004 if self.read_only(cx) {
2005 return;
2006 }
2007
2008 self.buffer.update(cx, |buffer, cx| {
2009 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2010 });
2011 }
2012
2013 pub fn edit_with_block_indent<I, S, T>(
2014 &mut self,
2015 edits: I,
2016 original_indent_columns: Vec<u32>,
2017 cx: &mut ViewContext<Self>,
2018 ) where
2019 I: IntoIterator<Item = (Range<S>, T)>,
2020 S: ToOffset,
2021 T: Into<Arc<str>>,
2022 {
2023 if self.read_only(cx) {
2024 return;
2025 }
2026
2027 self.buffer.update(cx, |buffer, cx| {
2028 buffer.edit(
2029 edits,
2030 Some(AutoindentMode::Block {
2031 original_indent_columns,
2032 }),
2033 cx,
2034 )
2035 });
2036 }
2037
2038 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2039 self.hide_context_menu(cx);
2040
2041 match phase {
2042 SelectPhase::Begin {
2043 position,
2044 add,
2045 click_count,
2046 } => self.begin_selection(position, add, click_count, cx),
2047 SelectPhase::BeginColumnar {
2048 position,
2049 goal_column,
2050 } => self.begin_columnar_selection(position, goal_column, cx),
2051 SelectPhase::Extend {
2052 position,
2053 click_count,
2054 } => self.extend_selection(position, click_count, cx),
2055 SelectPhase::Update {
2056 position,
2057 goal_column,
2058 scroll_delta,
2059 } => self.update_selection(position, goal_column, scroll_delta, cx),
2060 SelectPhase::End => self.end_selection(cx),
2061 }
2062 }
2063
2064 fn extend_selection(
2065 &mut self,
2066 position: DisplayPoint,
2067 click_count: usize,
2068 cx: &mut ViewContext<Self>,
2069 ) {
2070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2071 let tail = self.selections.newest::<usize>(cx).tail();
2072 self.begin_selection(position, false, click_count, cx);
2073
2074 let position = position.to_offset(&display_map, Bias::Left);
2075 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2076
2077 let mut pending_selection = self
2078 .selections
2079 .pending_anchor()
2080 .expect("extend_selection not called with pending selection");
2081 if position >= tail {
2082 pending_selection.start = tail_anchor;
2083 } else {
2084 pending_selection.end = tail_anchor;
2085 pending_selection.reversed = true;
2086 }
2087
2088 let mut pending_mode = self.selections.pending_mode().unwrap();
2089 match &mut pending_mode {
2090 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2091 _ => {}
2092 }
2093
2094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2095 s.set_pending(pending_selection, pending_mode)
2096 });
2097 }
2098
2099 fn begin_selection(
2100 &mut self,
2101 position: DisplayPoint,
2102 add: bool,
2103 click_count: usize,
2104 cx: &mut ViewContext<Self>,
2105 ) {
2106 if !self.focus_handle.is_focused(cx) {
2107 cx.focus(&self.focus_handle);
2108 }
2109
2110 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2111 let buffer = &display_map.buffer_snapshot;
2112 let newest_selection = self.selections.newest_anchor().clone();
2113 let position = display_map.clip_point(position, Bias::Left);
2114
2115 let start;
2116 let end;
2117 let mode;
2118 let auto_scroll;
2119 match click_count {
2120 1 => {
2121 start = buffer.anchor_before(position.to_point(&display_map));
2122 end = start.clone();
2123 mode = SelectMode::Character;
2124 auto_scroll = true;
2125 }
2126 2 => {
2127 let range = movement::surrounding_word(&display_map, position);
2128 start = buffer.anchor_before(range.start.to_point(&display_map));
2129 end = buffer.anchor_before(range.end.to_point(&display_map));
2130 mode = SelectMode::Word(start.clone()..end.clone());
2131 auto_scroll = true;
2132 }
2133 3 => {
2134 let position = display_map
2135 .clip_point(position, Bias::Left)
2136 .to_point(&display_map);
2137 let line_start = display_map.prev_line_boundary(position).0;
2138 let next_line_start = buffer.clip_point(
2139 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2140 Bias::Left,
2141 );
2142 start = buffer.anchor_before(line_start);
2143 end = buffer.anchor_before(next_line_start);
2144 mode = SelectMode::Line(start.clone()..end.clone());
2145 auto_scroll = true;
2146 }
2147 _ => {
2148 start = buffer.anchor_before(0);
2149 end = buffer.anchor_before(buffer.len());
2150 mode = SelectMode::All;
2151 auto_scroll = false;
2152 }
2153 }
2154
2155 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2156 if !add {
2157 s.clear_disjoint();
2158 } else if click_count > 1 {
2159 s.delete(newest_selection.id)
2160 }
2161
2162 s.set_pending_anchor_range(start..end, mode);
2163 });
2164 }
2165
2166 fn begin_columnar_selection(
2167 &mut self,
2168 position: DisplayPoint,
2169 goal_column: u32,
2170 cx: &mut ViewContext<Self>,
2171 ) {
2172 if !self.focus_handle.is_focused(cx) {
2173 cx.focus(&self.focus_handle);
2174 }
2175
2176 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2177 let tail = self.selections.newest::<Point>(cx).tail();
2178 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2179
2180 self.select_columns(
2181 tail.to_display_point(&display_map),
2182 position,
2183 goal_column,
2184 &display_map,
2185 cx,
2186 );
2187 }
2188
2189 fn update_selection(
2190 &mut self,
2191 position: DisplayPoint,
2192 goal_column: u32,
2193 scroll_delta: gpui::Point<f32>,
2194 cx: &mut ViewContext<Self>,
2195 ) {
2196 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2197
2198 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2199 let tail = tail.to_display_point(&display_map);
2200 self.select_columns(tail, position, goal_column, &display_map, cx);
2201 } else if let Some(mut pending) = self.selections.pending_anchor() {
2202 let buffer = self.buffer.read(cx).snapshot(cx);
2203 let head;
2204 let tail;
2205 let mode = self.selections.pending_mode().unwrap();
2206 match &mode {
2207 SelectMode::Character => {
2208 head = position.to_point(&display_map);
2209 tail = pending.tail().to_point(&buffer);
2210 }
2211 SelectMode::Word(original_range) => {
2212 let original_display_range = original_range.start.to_display_point(&display_map)
2213 ..original_range.end.to_display_point(&display_map);
2214 let original_buffer_range = original_display_range.start.to_point(&display_map)
2215 ..original_display_range.end.to_point(&display_map);
2216 if movement::is_inside_word(&display_map, position)
2217 || original_display_range.contains(&position)
2218 {
2219 let word_range = movement::surrounding_word(&display_map, position);
2220 if word_range.start < original_display_range.start {
2221 head = word_range.start.to_point(&display_map);
2222 } else {
2223 head = word_range.end.to_point(&display_map);
2224 }
2225 } else {
2226 head = position.to_point(&display_map);
2227 }
2228
2229 if head <= original_buffer_range.start {
2230 tail = original_buffer_range.end;
2231 } else {
2232 tail = original_buffer_range.start;
2233 }
2234 }
2235 SelectMode::Line(original_range) => {
2236 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2237
2238 let position = display_map
2239 .clip_point(position, Bias::Left)
2240 .to_point(&display_map);
2241 let line_start = display_map.prev_line_boundary(position).0;
2242 let next_line_start = buffer.clip_point(
2243 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2244 Bias::Left,
2245 );
2246
2247 if line_start < original_range.start {
2248 head = line_start
2249 } else {
2250 head = next_line_start
2251 }
2252
2253 if head <= original_range.start {
2254 tail = original_range.end;
2255 } else {
2256 tail = original_range.start;
2257 }
2258 }
2259 SelectMode::All => {
2260 return;
2261 }
2262 };
2263
2264 if head < tail {
2265 pending.start = buffer.anchor_before(head);
2266 pending.end = buffer.anchor_before(tail);
2267 pending.reversed = true;
2268 } else {
2269 pending.start = buffer.anchor_before(tail);
2270 pending.end = buffer.anchor_before(head);
2271 pending.reversed = false;
2272 }
2273
2274 self.change_selections(None, cx, |s| {
2275 s.set_pending(pending, mode);
2276 });
2277 } else {
2278 log::error!("update_selection dispatched with no pending selection");
2279 return;
2280 }
2281
2282 self.apply_scroll_delta(scroll_delta, cx);
2283 cx.notify();
2284 }
2285
2286 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2287 self.columnar_selection_tail.take();
2288 if self.selections.pending_anchor().is_some() {
2289 let selections = self.selections.all::<usize>(cx);
2290 self.change_selections(None, cx, |s| {
2291 s.select(selections);
2292 s.clear_pending();
2293 });
2294 }
2295 }
2296
2297 fn select_columns(
2298 &mut self,
2299 tail: DisplayPoint,
2300 head: DisplayPoint,
2301 goal_column: u32,
2302 display_map: &DisplaySnapshot,
2303 cx: &mut ViewContext<Self>,
2304 ) {
2305 let start_row = cmp::min(tail.row(), head.row());
2306 let end_row = cmp::max(tail.row(), head.row());
2307 let start_column = cmp::min(tail.column(), goal_column);
2308 let end_column = cmp::max(tail.column(), goal_column);
2309 let reversed = start_column < tail.column();
2310
2311 let selection_ranges = (start_row..=end_row)
2312 .filter_map(|row| {
2313 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2314 let start = display_map
2315 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2316 .to_point(display_map);
2317 let end = display_map
2318 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2319 .to_point(display_map);
2320 if reversed {
2321 Some(end..start)
2322 } else {
2323 Some(start..end)
2324 }
2325 } else {
2326 None
2327 }
2328 })
2329 .collect::<Vec<_>>();
2330
2331 self.change_selections(None, cx, |s| {
2332 s.select_ranges(selection_ranges);
2333 });
2334 cx.notify();
2335 }
2336
2337 pub fn has_pending_nonempty_selection(&self) -> bool {
2338 let pending_nonempty_selection = match self.selections.pending_anchor() {
2339 Some(Selection { start, end, .. }) => start != end,
2340 None => false,
2341 };
2342 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2343 }
2344
2345 pub fn has_pending_selection(&self) -> bool {
2346 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2347 }
2348
2349 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2350 if self.take_rename(false, cx).is_some() {
2351 return;
2352 }
2353
2354 if hide_hover(self, cx) {
2355 return;
2356 }
2357
2358 if self.hide_context_menu(cx).is_some() {
2359 return;
2360 }
2361
2362 if self.discard_copilot_suggestion(cx) {
2363 return;
2364 }
2365
2366 if self.snippet_stack.pop().is_some() {
2367 return;
2368 }
2369
2370 if self.mode == EditorMode::Full {
2371 if self.active_diagnostics.is_some() {
2372 self.dismiss_diagnostics(cx);
2373 return;
2374 }
2375
2376 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2377 return;
2378 }
2379 }
2380
2381 cx.propagate();
2382 }
2383
2384 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2385 let text: Arc<str> = text.into();
2386
2387 if self.read_only(cx) {
2388 return;
2389 }
2390
2391 let selections = self.selections.all_adjusted(cx);
2392 let mut brace_inserted = false;
2393 let mut edits = Vec::new();
2394 let mut new_selections = Vec::with_capacity(selections.len());
2395 let mut new_autoclose_regions = Vec::new();
2396 let snapshot = self.buffer.read(cx).read(cx);
2397
2398 for (selection, autoclose_region) in
2399 self.selections_with_autoclose_regions(selections, &snapshot)
2400 {
2401 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2402 // Determine if the inserted text matches the opening or closing
2403 // bracket of any of this language's bracket pairs.
2404 let mut bracket_pair = None;
2405 let mut is_bracket_pair_start = false;
2406 if !text.is_empty() {
2407 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2408 // and they are removing the character that triggered IME popup.
2409 for (pair, enabled) in scope.brackets() {
2410 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2411 bracket_pair = Some(pair.clone());
2412 is_bracket_pair_start = true;
2413 break;
2414 } else if pair.end.as_str() == text.as_ref() {
2415 bracket_pair = Some(pair.clone());
2416 break;
2417 }
2418 }
2419 }
2420
2421 if let Some(bracket_pair) = bracket_pair {
2422 if selection.is_empty() {
2423 if is_bracket_pair_start {
2424 let prefix_len = bracket_pair.start.len() - text.len();
2425
2426 // If the inserted text is a suffix of an opening bracket and the
2427 // selection is preceded by the rest of the opening bracket, then
2428 // insert the closing bracket.
2429 let following_text_allows_autoclose = snapshot
2430 .chars_at(selection.start)
2431 .next()
2432 .map_or(true, |c| scope.should_autoclose_before(c));
2433 let preceding_text_matches_prefix = prefix_len == 0
2434 || (selection.start.column >= (prefix_len as u32)
2435 && snapshot.contains_str_at(
2436 Point::new(
2437 selection.start.row,
2438 selection.start.column - (prefix_len as u32),
2439 ),
2440 &bracket_pair.start[..prefix_len],
2441 ));
2442 let autoclose = self.use_autoclose
2443 && snapshot.settings_at(selection.start, cx).use_autoclose;
2444 if autoclose
2445 && following_text_allows_autoclose
2446 && preceding_text_matches_prefix
2447 {
2448 let anchor = snapshot.anchor_before(selection.end);
2449 new_selections.push((selection.map(|_| anchor), text.len()));
2450 new_autoclose_regions.push((
2451 anchor,
2452 text.len(),
2453 selection.id,
2454 bracket_pair.clone(),
2455 ));
2456 edits.push((
2457 selection.range(),
2458 format!("{}{}", text, bracket_pair.end).into(),
2459 ));
2460 brace_inserted = true;
2461 continue;
2462 }
2463 }
2464
2465 if let Some(region) = autoclose_region {
2466 // If the selection is followed by an auto-inserted closing bracket,
2467 // then don't insert that closing bracket again; just move the selection
2468 // past the closing bracket.
2469 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2470 && text.as_ref() == region.pair.end.as_str();
2471 if should_skip {
2472 let anchor = snapshot.anchor_after(selection.end);
2473 new_selections
2474 .push((selection.map(|_| anchor), region.pair.end.len()));
2475 continue;
2476 }
2477 }
2478 }
2479 // If an opening bracket is 1 character long and is typed while
2480 // text is selected, then surround that text with the bracket pair.
2481 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2482 edits.push((selection.start..selection.start, text.clone()));
2483 edits.push((
2484 selection.end..selection.end,
2485 bracket_pair.end.as_str().into(),
2486 ));
2487 brace_inserted = true;
2488 new_selections.push((
2489 Selection {
2490 id: selection.id,
2491 start: snapshot.anchor_after(selection.start),
2492 end: snapshot.anchor_before(selection.end),
2493 reversed: selection.reversed,
2494 goal: selection.goal,
2495 },
2496 0,
2497 ));
2498 continue;
2499 }
2500 }
2501 }
2502
2503 // If not handling any auto-close operation, then just replace the selected
2504 // text with the given input and move the selection to the end of the
2505 // newly inserted text.
2506 let anchor = snapshot.anchor_after(selection.end);
2507 new_selections.push((selection.map(|_| anchor), 0));
2508 edits.push((selection.start..selection.end, text.clone()));
2509 }
2510
2511 drop(snapshot);
2512 self.transact(cx, |this, cx| {
2513 this.buffer.update(cx, |buffer, cx| {
2514 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2515 });
2516
2517 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2518 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2519 let snapshot = this.buffer.read(cx).read(cx);
2520 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2521 .zip(new_selection_deltas)
2522 .map(|(selection, delta)| Selection {
2523 id: selection.id,
2524 start: selection.start + delta,
2525 end: selection.end + delta,
2526 reversed: selection.reversed,
2527 goal: SelectionGoal::None,
2528 })
2529 .collect::<Vec<_>>();
2530
2531 let mut i = 0;
2532 for (position, delta, selection_id, pair) in new_autoclose_regions {
2533 let position = position.to_offset(&snapshot) + delta;
2534 let start = snapshot.anchor_before(position);
2535 let end = snapshot.anchor_after(position);
2536 while let Some(existing_state) = this.autoclose_regions.get(i) {
2537 match existing_state.range.start.cmp(&start, &snapshot) {
2538 Ordering::Less => i += 1,
2539 Ordering::Greater => break,
2540 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2541 Ordering::Less => i += 1,
2542 Ordering::Equal => break,
2543 Ordering::Greater => break,
2544 },
2545 }
2546 }
2547 this.autoclose_regions.insert(
2548 i,
2549 AutocloseRegion {
2550 selection_id,
2551 range: start..end,
2552 pair,
2553 },
2554 );
2555 }
2556
2557 drop(snapshot);
2558 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2559 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2560
2561 if brace_inserted {
2562 // If we inserted a brace while composing text (i.e. typing `"` on a
2563 // Brazilian keyboard), exit the composing state because most likely
2564 // the user wanted to surround the selection.
2565 this.unmark_text(cx);
2566 } else if EditorSettings::get_global(cx).use_on_type_format {
2567 if let Some(on_type_format_task) =
2568 this.trigger_on_type_formatting(text.to_string(), cx)
2569 {
2570 on_type_format_task.detach_and_log_err(cx);
2571 }
2572 }
2573
2574 if had_active_copilot_suggestion {
2575 this.refresh_copilot_suggestions(true, cx);
2576 if !this.has_active_copilot_suggestion(cx) {
2577 this.trigger_completion_on_input(&text, cx);
2578 }
2579 } else {
2580 this.trigger_completion_on_input(&text, cx);
2581 this.refresh_copilot_suggestions(true, cx);
2582 }
2583 });
2584 }
2585
2586 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2587 self.transact(cx, |this, cx| {
2588 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2589 let selections = this.selections.all::<usize>(cx);
2590 let multi_buffer = this.buffer.read(cx);
2591 let buffer = multi_buffer.snapshot(cx);
2592 selections
2593 .iter()
2594 .map(|selection| {
2595 let start_point = selection.start.to_point(&buffer);
2596 let mut indent = buffer.indent_size_for_line(start_point.row);
2597 indent.len = cmp::min(indent.len, start_point.column);
2598 let start = selection.start;
2599 let end = selection.end;
2600 let is_cursor = start == end;
2601 let language_scope = buffer.language_scope_at(start);
2602 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2603 &language_scope
2604 {
2605 let leading_whitespace_len = buffer
2606 .reversed_chars_at(start)
2607 .take_while(|c| c.is_whitespace() && *c != '\n')
2608 .map(|c| c.len_utf8())
2609 .sum::<usize>();
2610
2611 let trailing_whitespace_len = buffer
2612 .chars_at(end)
2613 .take_while(|c| c.is_whitespace() && *c != '\n')
2614 .map(|c| c.len_utf8())
2615 .sum::<usize>();
2616
2617 let insert_extra_newline =
2618 language.brackets().any(|(pair, enabled)| {
2619 let pair_start = pair.start.trim_end();
2620 let pair_end = pair.end.trim_start();
2621
2622 enabled
2623 && pair.newline
2624 && buffer.contains_str_at(
2625 end + trailing_whitespace_len,
2626 pair_end,
2627 )
2628 && buffer.contains_str_at(
2629 (start - leading_whitespace_len)
2630 .saturating_sub(pair_start.len()),
2631 pair_start,
2632 )
2633 });
2634 // Comment extension on newline is allowed only for cursor selections
2635 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2636 let is_comment_extension_enabled =
2637 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2638 is_cursor && is_comment_extension_enabled
2639 });
2640 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2641 let max_len_of_delimiter =
2642 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2643 let (snapshot, range) =
2644 buffer.buffer_line_for_row(start_point.row)?;
2645
2646 let mut index_of_first_non_whitespace = 0;
2647 let comment_candidate = snapshot
2648 .chars_for_range(range)
2649 .skip_while(|c| {
2650 let should_skip = c.is_whitespace();
2651 if should_skip {
2652 index_of_first_non_whitespace += 1;
2653 }
2654 should_skip
2655 })
2656 .take(max_len_of_delimiter)
2657 .collect::<String>();
2658 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2659 comment_candidate.starts_with(comment_prefix.as_ref())
2660 })?;
2661 let cursor_is_placed_after_comment_marker =
2662 index_of_first_non_whitespace + comment_prefix.len()
2663 <= start_point.column as usize;
2664 if cursor_is_placed_after_comment_marker {
2665 Some(comment_prefix.clone())
2666 } else {
2667 None
2668 }
2669 };
2670 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2671 get_comment_delimiter(delimiters)
2672 } else {
2673 None
2674 };
2675 (comment_delimiter, insert_extra_newline)
2676 } else {
2677 (None, false)
2678 };
2679
2680 let capacity_for_delimiter = comment_delimiter
2681 .as_deref()
2682 .map(str::len)
2683 .unwrap_or_default();
2684 let mut new_text =
2685 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2686 new_text.push_str("\n");
2687 new_text.extend(indent.chars());
2688 if let Some(delimiter) = &comment_delimiter {
2689 new_text.push_str(&delimiter);
2690 }
2691 if insert_extra_newline {
2692 new_text = new_text.repeat(2);
2693 }
2694
2695 let anchor = buffer.anchor_after(end);
2696 let new_selection = selection.map(|_| anchor);
2697 (
2698 (start..end, new_text),
2699 (insert_extra_newline, new_selection),
2700 )
2701 })
2702 .unzip()
2703 };
2704
2705 this.edit_with_autoindent(edits, cx);
2706 let buffer = this.buffer.read(cx).snapshot(cx);
2707 let new_selections = selection_fixup_info
2708 .into_iter()
2709 .map(|(extra_newline_inserted, new_selection)| {
2710 let mut cursor = new_selection.end.to_point(&buffer);
2711 if extra_newline_inserted {
2712 cursor.row -= 1;
2713 cursor.column = buffer.line_len(cursor.row);
2714 }
2715 new_selection.map(|_| cursor)
2716 })
2717 .collect();
2718
2719 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2720 this.refresh_copilot_suggestions(true, cx);
2721 });
2722 }
2723
2724 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2725 let buffer = self.buffer.read(cx);
2726 let snapshot = buffer.snapshot(cx);
2727
2728 let mut edits = Vec::new();
2729 let mut rows = Vec::new();
2730 let mut rows_inserted = 0;
2731
2732 for selection in self.selections.all_adjusted(cx) {
2733 let cursor = selection.head();
2734 let row = cursor.row;
2735
2736 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2737
2738 let newline = "\n".to_string();
2739 edits.push((start_of_line..start_of_line, newline));
2740
2741 rows.push(row + rows_inserted);
2742 rows_inserted += 1;
2743 }
2744
2745 self.transact(cx, |editor, cx| {
2746 editor.edit(edits, cx);
2747
2748 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2749 let mut index = 0;
2750 s.move_cursors_with(|map, _, _| {
2751 let row = rows[index];
2752 index += 1;
2753
2754 let point = Point::new(row, 0);
2755 let boundary = map.next_line_boundary(point).1;
2756 let clipped = map.clip_point(boundary, Bias::Left);
2757
2758 (clipped, SelectionGoal::None)
2759 });
2760 });
2761
2762 let mut indent_edits = Vec::new();
2763 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2764 for row in rows {
2765 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2766 for (row, indent) in indents {
2767 if indent.len == 0 {
2768 continue;
2769 }
2770
2771 let text = match indent.kind {
2772 IndentKind::Space => " ".repeat(indent.len as usize),
2773 IndentKind::Tab => "\t".repeat(indent.len as usize),
2774 };
2775 let point = Point::new(row, 0);
2776 indent_edits.push((point..point, text));
2777 }
2778 }
2779 editor.edit(indent_edits, cx);
2780 });
2781 }
2782
2783 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2784 let buffer = self.buffer.read(cx);
2785 let snapshot = buffer.snapshot(cx);
2786
2787 let mut edits = Vec::new();
2788 let mut rows = Vec::new();
2789 let mut rows_inserted = 0;
2790
2791 for selection in self.selections.all_adjusted(cx) {
2792 let cursor = selection.head();
2793 let row = cursor.row;
2794
2795 let point = Point::new(row + 1, 0);
2796 let start_of_line = snapshot.clip_point(point, Bias::Left);
2797
2798 let newline = "\n".to_string();
2799 edits.push((start_of_line..start_of_line, newline));
2800
2801 rows_inserted += 1;
2802 rows.push(row + rows_inserted);
2803 }
2804
2805 self.transact(cx, |editor, cx| {
2806 editor.edit(edits, cx);
2807
2808 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2809 let mut index = 0;
2810 s.move_cursors_with(|map, _, _| {
2811 let row = rows[index];
2812 index += 1;
2813
2814 let point = Point::new(row, 0);
2815 let boundary = map.next_line_boundary(point).1;
2816 let clipped = map.clip_point(boundary, Bias::Left);
2817
2818 (clipped, SelectionGoal::None)
2819 });
2820 });
2821
2822 let mut indent_edits = Vec::new();
2823 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2824 for row in rows {
2825 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2826 for (row, indent) in indents {
2827 if indent.len == 0 {
2828 continue;
2829 }
2830
2831 let text = match indent.kind {
2832 IndentKind::Space => " ".repeat(indent.len as usize),
2833 IndentKind::Tab => "\t".repeat(indent.len as usize),
2834 };
2835 let point = Point::new(row, 0);
2836 indent_edits.push((point..point, text));
2837 }
2838 }
2839 editor.edit(indent_edits, cx);
2840 });
2841 }
2842
2843 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2844 self.insert_with_autoindent_mode(
2845 text,
2846 Some(AutoindentMode::Block {
2847 original_indent_columns: Vec::new(),
2848 }),
2849 cx,
2850 );
2851 }
2852
2853 fn insert_with_autoindent_mode(
2854 &mut self,
2855 text: &str,
2856 autoindent_mode: Option<AutoindentMode>,
2857 cx: &mut ViewContext<Self>,
2858 ) {
2859 if self.read_only(cx) {
2860 return;
2861 }
2862
2863 let text: Arc<str> = text.into();
2864 self.transact(cx, |this, cx| {
2865 let old_selections = this.selections.all_adjusted(cx);
2866 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2867 let anchors = {
2868 let snapshot = buffer.read(cx);
2869 old_selections
2870 .iter()
2871 .map(|s| {
2872 let anchor = snapshot.anchor_after(s.head());
2873 s.map(|_| anchor)
2874 })
2875 .collect::<Vec<_>>()
2876 };
2877 buffer.edit(
2878 old_selections
2879 .iter()
2880 .map(|s| (s.start..s.end, text.clone())),
2881 autoindent_mode,
2882 cx,
2883 );
2884 anchors
2885 });
2886
2887 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2888 s.select_anchors(selection_anchors);
2889 })
2890 });
2891 }
2892
2893 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2894 if !EditorSettings::get_global(cx).show_completions_on_input {
2895 return;
2896 }
2897
2898 let selection = self.selections.newest_anchor();
2899 if self
2900 .buffer
2901 .read(cx)
2902 .is_completion_trigger(selection.head(), text, cx)
2903 {
2904 self.show_completions(&ShowCompletions, cx);
2905 } else {
2906 self.hide_context_menu(cx);
2907 }
2908 }
2909
2910 /// If any empty selections is touching the start of its innermost containing autoclose
2911 /// region, expand it to select the brackets.
2912 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2913 let selections = self.selections.all::<usize>(cx);
2914 let buffer = self.buffer.read(cx).read(cx);
2915 let mut new_selections = Vec::new();
2916 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2917 if let (Some(region), true) = (region, selection.is_empty()) {
2918 let mut range = region.range.to_offset(&buffer);
2919 if selection.start == range.start {
2920 if range.start >= region.pair.start.len() {
2921 range.start -= region.pair.start.len();
2922 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2923 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2924 range.end += region.pair.end.len();
2925 selection.start = range.start;
2926 selection.end = range.end;
2927 }
2928 }
2929 }
2930 }
2931 }
2932 new_selections.push(selection);
2933 }
2934
2935 drop(buffer);
2936 self.change_selections(None, cx, |selections| selections.select(new_selections));
2937 }
2938
2939 /// Iterate the given selections, and for each one, find the smallest surrounding
2940 /// autoclose region. This uses the ordering of the selections and the autoclose
2941 /// regions to avoid repeated comparisons.
2942 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2943 &'a self,
2944 selections: impl IntoIterator<Item = Selection<D>>,
2945 buffer: &'a MultiBufferSnapshot,
2946 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2947 let mut i = 0;
2948 let mut regions = self.autoclose_regions.as_slice();
2949 selections.into_iter().map(move |selection| {
2950 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2951
2952 let mut enclosing = None;
2953 while let Some(pair_state) = regions.get(i) {
2954 if pair_state.range.end.to_offset(buffer) < range.start {
2955 regions = ®ions[i + 1..];
2956 i = 0;
2957 } else if pair_state.range.start.to_offset(buffer) > range.end {
2958 break;
2959 } else {
2960 if pair_state.selection_id == selection.id {
2961 enclosing = Some(pair_state);
2962 }
2963 i += 1;
2964 }
2965 }
2966
2967 (selection.clone(), enclosing)
2968 })
2969 }
2970
2971 /// Remove any autoclose regions that no longer contain their selection.
2972 fn invalidate_autoclose_regions(
2973 &mut self,
2974 mut selections: &[Selection<Anchor>],
2975 buffer: &MultiBufferSnapshot,
2976 ) {
2977 self.autoclose_regions.retain(|state| {
2978 let mut i = 0;
2979 while let Some(selection) = selections.get(i) {
2980 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2981 selections = &selections[1..];
2982 continue;
2983 }
2984 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2985 break;
2986 }
2987 if selection.id == state.selection_id {
2988 return true;
2989 } else {
2990 i += 1;
2991 }
2992 }
2993 false
2994 });
2995 }
2996
2997 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2998 let offset = position.to_offset(buffer);
2999 let (word_range, kind) = buffer.surrounding_word(offset);
3000 if offset > word_range.start && kind == Some(CharKind::Word) {
3001 Some(
3002 buffer
3003 .text_for_range(word_range.start..offset)
3004 .collect::<String>(),
3005 )
3006 } else {
3007 None
3008 }
3009 }
3010
3011 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3012 self.refresh_inlay_hints(
3013 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3014 cx,
3015 );
3016 }
3017
3018 pub fn inlay_hints_enabled(&self) -> bool {
3019 self.inlay_hint_cache.enabled
3020 }
3021
3022 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3023 if self.project.is_none() || self.mode != EditorMode::Full {
3024 return;
3025 }
3026
3027 let reason_description = reason.description();
3028 let (invalidate_cache, required_languages) = match reason {
3029 InlayHintRefreshReason::Toggle(enabled) => {
3030 self.inlay_hint_cache.enabled = enabled;
3031 if enabled {
3032 (InvalidationStrategy::RefreshRequested, None)
3033 } else {
3034 self.inlay_hint_cache.clear();
3035 self.splice_inlay_hints(
3036 self.visible_inlay_hints(cx)
3037 .iter()
3038 .map(|inlay| inlay.id)
3039 .collect(),
3040 Vec::new(),
3041 cx,
3042 );
3043 return;
3044 }
3045 }
3046 InlayHintRefreshReason::SettingsChange(new_settings) => {
3047 match self.inlay_hint_cache.update_settings(
3048 &self.buffer,
3049 new_settings,
3050 self.visible_inlay_hints(cx),
3051 cx,
3052 ) {
3053 ControlFlow::Break(Some(InlaySplice {
3054 to_remove,
3055 to_insert,
3056 })) => {
3057 self.splice_inlay_hints(to_remove, to_insert, cx);
3058 return;
3059 }
3060 ControlFlow::Break(None) => return,
3061 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3062 }
3063 }
3064 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3065 if let Some(InlaySplice {
3066 to_remove,
3067 to_insert,
3068 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3069 {
3070 self.splice_inlay_hints(to_remove, to_insert, cx);
3071 }
3072 return;
3073 }
3074 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3075 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3076 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3077 }
3078 InlayHintRefreshReason::RefreshRequested => {
3079 (InvalidationStrategy::RefreshRequested, None)
3080 }
3081 };
3082
3083 if let Some(InlaySplice {
3084 to_remove,
3085 to_insert,
3086 }) = self.inlay_hint_cache.spawn_hint_refresh(
3087 reason_description,
3088 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3089 invalidate_cache,
3090 cx,
3091 ) {
3092 self.splice_inlay_hints(to_remove, to_insert, cx);
3093 }
3094 }
3095
3096 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3097 self.display_map
3098 .read(cx)
3099 .current_inlays()
3100 .filter(move |inlay| {
3101 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3102 })
3103 .cloned()
3104 .collect()
3105 }
3106
3107 pub fn excerpts_for_inlay_hints_query(
3108 &self,
3109 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3110 cx: &mut ViewContext<Editor>,
3111 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3112 let Some(project) = self.project.as_ref() else {
3113 return HashMap::default();
3114 };
3115 let project = project.read(cx);
3116 let multi_buffer = self.buffer().read(cx);
3117 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3118 let multi_buffer_visible_start = self
3119 .scroll_manager
3120 .anchor()
3121 .anchor
3122 .to_point(&multi_buffer_snapshot);
3123 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3124 multi_buffer_visible_start
3125 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3126 Bias::Left,
3127 );
3128 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3129 multi_buffer
3130 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3131 .into_iter()
3132 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3133 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3134 let buffer = buffer_handle.read(cx);
3135 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3136 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3137 let worktree_entry = buffer_worktree
3138 .read(cx)
3139 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3140 if worktree_entry.is_ignored {
3141 return None;
3142 }
3143
3144 let language = buffer.language()?;
3145 if let Some(restrict_to_languages) = restrict_to_languages {
3146 if !restrict_to_languages.contains(language) {
3147 return None;
3148 }
3149 }
3150 Some((
3151 excerpt_id,
3152 (
3153 buffer_handle,
3154 buffer.version().clone(),
3155 excerpt_visible_range,
3156 ),
3157 ))
3158 })
3159 .collect()
3160 }
3161
3162 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3163 TextLayoutDetails {
3164 text_system: cx.text_system().clone(),
3165 editor_style: self.style.clone().unwrap(),
3166 rem_size: cx.rem_size(),
3167 scroll_anchor: self.scroll_manager.anchor(),
3168 visible_rows: self.visible_line_count(),
3169 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3170 }
3171 }
3172
3173 fn splice_inlay_hints(
3174 &self,
3175 to_remove: Vec<InlayId>,
3176 to_insert: Vec<Inlay>,
3177 cx: &mut ViewContext<Self>,
3178 ) {
3179 self.display_map.update(cx, |display_map, cx| {
3180 display_map.splice_inlays(to_remove, to_insert, cx);
3181 });
3182 cx.notify();
3183 }
3184
3185 fn trigger_on_type_formatting(
3186 &self,
3187 input: String,
3188 cx: &mut ViewContext<Self>,
3189 ) -> Option<Task<Result<()>>> {
3190 if input.len() != 1 {
3191 return None;
3192 }
3193
3194 let project = self.project.as_ref()?;
3195 let position = self.selections.newest_anchor().head();
3196 let (buffer, buffer_position) = self
3197 .buffer
3198 .read(cx)
3199 .text_anchor_for_position(position.clone(), cx)?;
3200
3201 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3202 // hence we do LSP request & edit on host side only — add formats to host's history.
3203 let push_to_lsp_host_history = true;
3204 // If this is not the host, append its history with new edits.
3205 let push_to_client_history = project.read(cx).is_remote();
3206
3207 let on_type_formatting = project.update(cx, |project, cx| {
3208 project.on_type_format(
3209 buffer.clone(),
3210 buffer_position,
3211 input,
3212 push_to_lsp_host_history,
3213 cx,
3214 )
3215 });
3216 Some(cx.spawn(|editor, mut cx| async move {
3217 if let Some(transaction) = on_type_formatting.await? {
3218 if push_to_client_history {
3219 buffer
3220 .update(&mut cx, |buffer, _| {
3221 buffer.push_transaction(transaction, Instant::now());
3222 })
3223 .ok();
3224 }
3225 editor.update(&mut cx, |editor, cx| {
3226 editor.refresh_document_highlights(cx);
3227 })?;
3228 }
3229 Ok(())
3230 }))
3231 }
3232
3233 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3234 if self.pending_rename.is_some() {
3235 return;
3236 }
3237
3238 let Some(provider) = self.completion_provider.as_ref() else {
3239 return;
3240 };
3241
3242 let position = self.selections.newest_anchor().head();
3243 let (buffer, buffer_position) = if let Some(output) = self
3244 .buffer
3245 .read(cx)
3246 .text_anchor_for_position(position.clone(), cx)
3247 {
3248 output
3249 } else {
3250 return;
3251 };
3252
3253 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3254 let completions = provider.completions(&buffer, buffer_position, cx);
3255
3256 let id = post_inc(&mut self.next_completion_id);
3257 let task = cx.spawn(|this, mut cx| {
3258 async move {
3259 let completions = completions.await.log_err();
3260 let menu = if let Some(completions) = completions {
3261 let mut menu = CompletionsMenu {
3262 id,
3263 initial_position: position,
3264 match_candidates: completions
3265 .iter()
3266 .enumerate()
3267 .map(|(id, completion)| {
3268 StringMatchCandidate::new(
3269 id,
3270 completion.label.text[completion.label.filter_range.clone()]
3271 .into(),
3272 )
3273 })
3274 .collect(),
3275 buffer,
3276 completions: Arc::new(RwLock::new(completions.into())),
3277 matches: Vec::new().into(),
3278 selected_item: 0,
3279 scroll_handle: UniformListScrollHandle::new(),
3280 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3281 DebouncedDelay::new(),
3282 )),
3283 };
3284 menu.filter(query.as_deref(), cx.background_executor().clone())
3285 .await;
3286
3287 if menu.matches.is_empty() {
3288 None
3289 } else {
3290 this.update(&mut cx, |editor, cx| {
3291 let completions = menu.completions.clone();
3292 let matches = menu.matches.clone();
3293
3294 let delay_ms = EditorSettings::get_global(cx)
3295 .completion_documentation_secondary_query_debounce;
3296 let delay = Duration::from_millis(delay_ms);
3297
3298 editor
3299 .completion_documentation_pre_resolve_debounce
3300 .fire_new(delay, cx, |editor, cx| {
3301 CompletionsMenu::pre_resolve_completion_documentation(
3302 completions,
3303 matches,
3304 editor,
3305 cx,
3306 )
3307 });
3308 })
3309 .ok();
3310 Some(menu)
3311 }
3312 } else {
3313 None
3314 };
3315
3316 this.update(&mut cx, |this, cx| {
3317 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3318
3319 let mut context_menu = this.context_menu.write();
3320 match context_menu.as_ref() {
3321 None => {}
3322
3323 Some(ContextMenu::Completions(prev_menu)) => {
3324 if prev_menu.id > id {
3325 return;
3326 }
3327 }
3328
3329 _ => return,
3330 }
3331
3332 if this.focus_handle.is_focused(cx) && menu.is_some() {
3333 let menu = menu.unwrap();
3334 *context_menu = Some(ContextMenu::Completions(menu));
3335 drop(context_menu);
3336 this.discard_copilot_suggestion(cx);
3337 cx.notify();
3338 } else if this.completion_tasks.len() <= 1 {
3339 // If there are no more completion tasks and the last menu was
3340 // empty, we should hide it. If it was already hidden, we should
3341 // also show the copilot suggestion when available.
3342 drop(context_menu);
3343 if this.hide_context_menu(cx).is_none() {
3344 this.update_visible_copilot_suggestion(cx);
3345 }
3346 }
3347 })?;
3348
3349 Ok::<_, anyhow::Error>(())
3350 }
3351 .log_err()
3352 });
3353
3354 self.completion_tasks.push((id, task));
3355 }
3356
3357 pub fn confirm_completion(
3358 &mut self,
3359 action: &ConfirmCompletion,
3360 cx: &mut ViewContext<Self>,
3361 ) -> Option<Task<Result<()>>> {
3362 use language::ToOffset as _;
3363
3364 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3365 menu
3366 } else {
3367 return None;
3368 };
3369
3370 let mat = completions_menu
3371 .matches
3372 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3373 let buffer_handle = completions_menu.buffer;
3374 let completions = completions_menu.completions.read();
3375 let completion = completions.get(mat.candidate_id)?;
3376 cx.stop_propagation();
3377
3378 let snippet;
3379 let text;
3380 if completion.is_snippet() {
3381 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3382 text = snippet.as_ref().unwrap().text.clone();
3383 } else {
3384 snippet = None;
3385 text = completion.new_text.clone();
3386 };
3387 let selections = self.selections.all::<usize>(cx);
3388 let buffer = buffer_handle.read(cx);
3389 let old_range = completion.old_range.to_offset(buffer);
3390 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3391
3392 let newest_selection = self.selections.newest_anchor();
3393 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3394 return None;
3395 }
3396
3397 let lookbehind = newest_selection
3398 .start
3399 .text_anchor
3400 .to_offset(buffer)
3401 .saturating_sub(old_range.start);
3402 let lookahead = old_range
3403 .end
3404 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3405 let mut common_prefix_len = old_text
3406 .bytes()
3407 .zip(text.bytes())
3408 .take_while(|(a, b)| a == b)
3409 .count();
3410
3411 let snapshot = self.buffer.read(cx).snapshot(cx);
3412 let mut range_to_replace: Option<Range<isize>> = None;
3413 let mut ranges = Vec::new();
3414 for selection in &selections {
3415 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3416 let start = selection.start.saturating_sub(lookbehind);
3417 let end = selection.end + lookahead;
3418 if selection.id == newest_selection.id {
3419 range_to_replace = Some(
3420 ((start + common_prefix_len) as isize - selection.start as isize)
3421 ..(end as isize - selection.start as isize),
3422 );
3423 }
3424 ranges.push(start + common_prefix_len..end);
3425 } else {
3426 common_prefix_len = 0;
3427 ranges.clear();
3428 ranges.extend(selections.iter().map(|s| {
3429 if s.id == newest_selection.id {
3430 range_to_replace = Some(
3431 old_range.start.to_offset_utf16(&snapshot).0 as isize
3432 - selection.start as isize
3433 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3434 - selection.start as isize,
3435 );
3436 old_range.clone()
3437 } else {
3438 s.start..s.end
3439 }
3440 }));
3441 break;
3442 }
3443 }
3444 let text = &text[common_prefix_len..];
3445
3446 cx.emit(EditorEvent::InputHandled {
3447 utf16_range_to_replace: range_to_replace,
3448 text: text.into(),
3449 });
3450
3451 self.transact(cx, |this, cx| {
3452 if let Some(mut snippet) = snippet {
3453 snippet.text = text.to_string();
3454 for tabstop in snippet.tabstops.iter_mut().flatten() {
3455 tabstop.start -= common_prefix_len as isize;
3456 tabstop.end -= common_prefix_len as isize;
3457 }
3458
3459 this.insert_snippet(&ranges, snippet, cx).log_err();
3460 } else {
3461 this.buffer.update(cx, |buffer, cx| {
3462 buffer.edit(
3463 ranges.iter().map(|range| (range.clone(), text)),
3464 this.autoindent_mode.clone(),
3465 cx,
3466 );
3467 });
3468 }
3469
3470 this.refresh_copilot_suggestions(true, cx);
3471 });
3472
3473 let provider = self.completion_provider.as_ref()?;
3474 let apply_edits = provider.apply_additional_edits_for_completion(
3475 buffer_handle,
3476 completion.clone(),
3477 true,
3478 cx,
3479 );
3480 Some(cx.foreground_executor().spawn(async move {
3481 apply_edits.await?;
3482 Ok(())
3483 }))
3484 }
3485
3486 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3487 let mut context_menu = self.context_menu.write();
3488 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3489 *context_menu = None;
3490 cx.notify();
3491 return;
3492 }
3493 drop(context_menu);
3494
3495 let deployed_from_indicator = action.deployed_from_indicator;
3496 let mut task = self.code_actions_task.take();
3497 cx.spawn(|this, mut cx| async move {
3498 while let Some(prev_task) = task {
3499 prev_task.await;
3500 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3501 }
3502
3503 this.update(&mut cx, |this, cx| {
3504 if this.focus_handle.is_focused(cx) {
3505 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3506 this.completion_tasks.clear();
3507 this.discard_copilot_suggestion(cx);
3508 *this.context_menu.write() =
3509 Some(ContextMenu::CodeActions(CodeActionsMenu {
3510 buffer,
3511 actions,
3512 selected_item: Default::default(),
3513 scroll_handle: UniformListScrollHandle::default(),
3514 deployed_from_indicator,
3515 }));
3516 cx.notify();
3517 }
3518 }
3519 })?;
3520
3521 Ok::<_, anyhow::Error>(())
3522 })
3523 .detach_and_log_err(cx);
3524 }
3525
3526 pub fn confirm_code_action(
3527 &mut self,
3528 action: &ConfirmCodeAction,
3529 cx: &mut ViewContext<Self>,
3530 ) -> Option<Task<Result<()>>> {
3531 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3532 menu
3533 } else {
3534 return None;
3535 };
3536 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3537 let action = actions_menu.actions.get(action_ix)?.clone();
3538 let title = action.lsp_action.title.clone();
3539 let buffer = actions_menu.buffer;
3540 let workspace = self.workspace()?;
3541
3542 let apply_code_actions = workspace
3543 .read(cx)
3544 .project()
3545 .clone()
3546 .update(cx, |project, cx| {
3547 project.apply_code_action(buffer, action, true, cx)
3548 });
3549 let workspace = workspace.downgrade();
3550 Some(cx.spawn(|editor, cx| async move {
3551 let project_transaction = apply_code_actions.await?;
3552 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3553 }))
3554 }
3555
3556 async fn open_project_transaction(
3557 this: &WeakView<Editor>,
3558 workspace: WeakView<Workspace>,
3559 transaction: ProjectTransaction,
3560 title: String,
3561 mut cx: AsyncWindowContext,
3562 ) -> Result<()> {
3563 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3564
3565 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3566 cx.update(|cx| {
3567 entries.sort_unstable_by_key(|(buffer, _)| {
3568 buffer.read(cx).file().map(|f| f.path().clone())
3569 });
3570 })?;
3571
3572 // If the project transaction's edits are all contained within this editor, then
3573 // avoid opening a new editor to display them.
3574
3575 if let Some((buffer, transaction)) = entries.first() {
3576 if entries.len() == 1 {
3577 let excerpt = this.update(&mut cx, |editor, cx| {
3578 editor
3579 .buffer()
3580 .read(cx)
3581 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3582 })?;
3583 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3584 if excerpted_buffer == *buffer {
3585 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3586 let excerpt_range = excerpt_range.to_offset(buffer);
3587 buffer
3588 .edited_ranges_for_transaction::<usize>(transaction)
3589 .all(|range| {
3590 excerpt_range.start <= range.start
3591 && excerpt_range.end >= range.end
3592 })
3593 })?;
3594
3595 if all_edits_within_excerpt {
3596 return Ok(());
3597 }
3598 }
3599 }
3600 }
3601 } else {
3602 return Ok(());
3603 }
3604
3605 let mut ranges_to_highlight = Vec::new();
3606 let excerpt_buffer = cx.new_model(|cx| {
3607 let mut multibuffer =
3608 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3609 for (buffer_handle, transaction) in &entries {
3610 let buffer = buffer_handle.read(cx);
3611 ranges_to_highlight.extend(
3612 multibuffer.push_excerpts_with_context_lines(
3613 buffer_handle.clone(),
3614 buffer
3615 .edited_ranges_for_transaction::<usize>(transaction)
3616 .collect(),
3617 1,
3618 cx,
3619 ),
3620 );
3621 }
3622 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3623 multibuffer
3624 })?;
3625
3626 workspace.update(&mut cx, |workspace, cx| {
3627 let project = workspace.project().clone();
3628 let editor =
3629 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3630 workspace.add_item(Box::new(editor.clone()), cx);
3631 editor.update(cx, |editor, cx| {
3632 editor.highlight_background::<Self>(
3633 ranges_to_highlight,
3634 |theme| theme.editor_highlighted_line_background,
3635 cx,
3636 );
3637 });
3638 })?;
3639
3640 Ok(())
3641 }
3642
3643 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3644 let project = self.project.clone()?;
3645 let buffer = self.buffer.read(cx);
3646 let newest_selection = self.selections.newest_anchor().clone();
3647 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3648 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3649 if start_buffer != end_buffer {
3650 return None;
3651 }
3652
3653 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3654 cx.background_executor()
3655 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3656 .await;
3657
3658 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3659 project.code_actions(&start_buffer, start..end, cx)
3660 }) {
3661 code_actions.await.log_err()
3662 } else {
3663 None
3664 };
3665
3666 this.update(&mut cx, |this, cx| {
3667 this.available_code_actions = actions.and_then(|actions| {
3668 if actions.is_empty() {
3669 None
3670 } else {
3671 Some((start_buffer, actions.into()))
3672 }
3673 });
3674 cx.notify();
3675 })
3676 .log_err();
3677 }));
3678 None
3679 }
3680
3681 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3682 if self.pending_rename.is_some() {
3683 return None;
3684 }
3685
3686 let project = self.project.clone()?;
3687 let buffer = self.buffer.read(cx);
3688 let newest_selection = self.selections.newest_anchor().clone();
3689 let cursor_position = newest_selection.head();
3690 let (cursor_buffer, cursor_buffer_position) =
3691 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3692 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3693 if cursor_buffer != tail_buffer {
3694 return None;
3695 }
3696
3697 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3698 cx.background_executor()
3699 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3700 .await;
3701
3702 let highlights = if let Some(highlights) = project
3703 .update(&mut cx, |project, cx| {
3704 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3705 })
3706 .log_err()
3707 {
3708 highlights.await.log_err()
3709 } else {
3710 None
3711 };
3712
3713 if let Some(highlights) = highlights {
3714 this.update(&mut cx, |this, cx| {
3715 if this.pending_rename.is_some() {
3716 return;
3717 }
3718
3719 let buffer_id = cursor_position.buffer_id;
3720 let buffer = this.buffer.read(cx);
3721 if !buffer
3722 .text_anchor_for_position(cursor_position, cx)
3723 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3724 {
3725 return;
3726 }
3727
3728 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3729 let mut write_ranges = Vec::new();
3730 let mut read_ranges = Vec::new();
3731 for highlight in highlights {
3732 for (excerpt_id, excerpt_range) in
3733 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3734 {
3735 let start = highlight
3736 .range
3737 .start
3738 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3739 let end = highlight
3740 .range
3741 .end
3742 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3743 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3744 continue;
3745 }
3746
3747 let range = Anchor {
3748 buffer_id,
3749 excerpt_id: excerpt_id.clone(),
3750 text_anchor: start,
3751 }..Anchor {
3752 buffer_id,
3753 excerpt_id,
3754 text_anchor: end,
3755 };
3756 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3757 write_ranges.push(range);
3758 } else {
3759 read_ranges.push(range);
3760 }
3761 }
3762 }
3763
3764 this.highlight_background::<DocumentHighlightRead>(
3765 read_ranges,
3766 |theme| theme.editor_document_highlight_read_background,
3767 cx,
3768 );
3769 this.highlight_background::<DocumentHighlightWrite>(
3770 write_ranges,
3771 |theme| theme.editor_document_highlight_write_background,
3772 cx,
3773 );
3774 cx.notify();
3775 })
3776 .log_err();
3777 }
3778 }));
3779 None
3780 }
3781
3782 fn refresh_copilot_suggestions(
3783 &mut self,
3784 debounce: bool,
3785 cx: &mut ViewContext<Self>,
3786 ) -> Option<()> {
3787 let copilot = Copilot::global(cx)?;
3788 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3789 self.clear_copilot_suggestions(cx);
3790 return None;
3791 }
3792 self.update_visible_copilot_suggestion(cx);
3793
3794 let snapshot = self.buffer.read(cx).snapshot(cx);
3795 let cursor = self.selections.newest_anchor().head();
3796 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3797 self.clear_copilot_suggestions(cx);
3798 return None;
3799 }
3800
3801 let (buffer, buffer_position) =
3802 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3803 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3804 if debounce {
3805 cx.background_executor()
3806 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3807 .await;
3808 }
3809
3810 let completions = copilot
3811 .update(&mut cx, |copilot, cx| {
3812 copilot.completions(&buffer, buffer_position, cx)
3813 })
3814 .log_err()
3815 .unwrap_or(Task::ready(Ok(Vec::new())))
3816 .await
3817 .log_err()
3818 .into_iter()
3819 .flatten()
3820 .collect_vec();
3821
3822 this.update(&mut cx, |this, cx| {
3823 if !completions.is_empty() {
3824 this.copilot_state.cycled = false;
3825 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3826 this.copilot_state.completions.clear();
3827 this.copilot_state.active_completion_index = 0;
3828 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3829 for completion in completions {
3830 this.copilot_state.push_completion(completion);
3831 }
3832 this.update_visible_copilot_suggestion(cx);
3833 }
3834 })
3835 .log_err()?;
3836 Some(())
3837 });
3838
3839 Some(())
3840 }
3841
3842 fn cycle_copilot_suggestions(
3843 &mut self,
3844 direction: Direction,
3845 cx: &mut ViewContext<Self>,
3846 ) -> Option<()> {
3847 let copilot = Copilot::global(cx)?;
3848 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3849 return None;
3850 }
3851
3852 if self.copilot_state.cycled {
3853 self.copilot_state.cycle_completions(direction);
3854 self.update_visible_copilot_suggestion(cx);
3855 } else {
3856 let cursor = self.selections.newest_anchor().head();
3857 let (buffer, buffer_position) =
3858 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3859 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3860 let completions = copilot
3861 .update(&mut cx, |copilot, cx| {
3862 copilot.completions_cycling(&buffer, buffer_position, cx)
3863 })
3864 .log_err()?
3865 .await;
3866
3867 this.update(&mut cx, |this, cx| {
3868 this.copilot_state.cycled = true;
3869 for completion in completions.log_err().into_iter().flatten() {
3870 this.copilot_state.push_completion(completion);
3871 }
3872 this.copilot_state.cycle_completions(direction);
3873 this.update_visible_copilot_suggestion(cx);
3874 })
3875 .log_err()?;
3876
3877 Some(())
3878 });
3879 }
3880
3881 Some(())
3882 }
3883
3884 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3885 if !self.has_active_copilot_suggestion(cx) {
3886 self.refresh_copilot_suggestions(false, cx);
3887 return;
3888 }
3889
3890 self.update_visible_copilot_suggestion(cx);
3891 }
3892
3893 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3894 self.show_cursor_names(cx);
3895 }
3896
3897 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3898 self.show_cursor_names = true;
3899 cx.notify();
3900 cx.spawn(|this, mut cx| async move {
3901 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3902 this.update(&mut cx, |this, cx| {
3903 this.show_cursor_names = false;
3904 cx.notify()
3905 })
3906 .ok()
3907 })
3908 .detach();
3909 }
3910
3911 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3912 if self.has_active_copilot_suggestion(cx) {
3913 self.cycle_copilot_suggestions(Direction::Next, cx);
3914 } else {
3915 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3916 if is_copilot_disabled {
3917 cx.propagate();
3918 }
3919 }
3920 }
3921
3922 fn previous_copilot_suggestion(
3923 &mut self,
3924 _: &copilot::PreviousSuggestion,
3925 cx: &mut ViewContext<Self>,
3926 ) {
3927 if self.has_active_copilot_suggestion(cx) {
3928 self.cycle_copilot_suggestions(Direction::Prev, cx);
3929 } else {
3930 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3931 if is_copilot_disabled {
3932 cx.propagate();
3933 }
3934 }
3935 }
3936
3937 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3938 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3939 if let Some((copilot, completion)) =
3940 Copilot::global(cx).zip(self.copilot_state.active_completion())
3941 {
3942 copilot
3943 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3944 .detach_and_log_err(cx);
3945
3946 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3947 }
3948 cx.emit(EditorEvent::InputHandled {
3949 utf16_range_to_replace: None,
3950 text: suggestion.text.to_string().into(),
3951 });
3952 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3953 cx.notify();
3954 true
3955 } else {
3956 false
3957 }
3958 }
3959
3960 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3961 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3962 if let Some(copilot) = Copilot::global(cx) {
3963 copilot
3964 .update(cx, |copilot, cx| {
3965 copilot.discard_completions(&self.copilot_state.completions, cx)
3966 })
3967 .detach_and_log_err(cx);
3968
3969 self.report_copilot_event(None, false, cx)
3970 }
3971
3972 self.display_map.update(cx, |map, cx| {
3973 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3974 });
3975 cx.notify();
3976 true
3977 } else {
3978 false
3979 }
3980 }
3981
3982 fn is_copilot_enabled_at(
3983 &self,
3984 location: Anchor,
3985 snapshot: &MultiBufferSnapshot,
3986 cx: &mut ViewContext<Self>,
3987 ) -> bool {
3988 let file = snapshot.file_at(location);
3989 let language = snapshot.language_at(location);
3990 let settings = all_language_settings(file, cx);
3991 self.show_copilot_suggestions
3992 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3993 }
3994
3995 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3996 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3997 let buffer = self.buffer.read(cx).read(cx);
3998 suggestion.position.is_valid(&buffer)
3999 } else {
4000 false
4001 }
4002 }
4003
4004 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4005 let suggestion = self.copilot_state.suggestion.take()?;
4006 self.display_map.update(cx, |map, cx| {
4007 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4008 });
4009 let buffer = self.buffer.read(cx).read(cx);
4010
4011 if suggestion.position.is_valid(&buffer) {
4012 Some(suggestion)
4013 } else {
4014 None
4015 }
4016 }
4017
4018 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4019 let snapshot = self.buffer.read(cx).snapshot(cx);
4020 let selection = self.selections.newest_anchor();
4021 let cursor = selection.head();
4022
4023 if self.context_menu.read().is_some()
4024 || !self.completion_tasks.is_empty()
4025 || selection.start != selection.end
4026 {
4027 self.discard_copilot_suggestion(cx);
4028 } else if let Some(text) = self
4029 .copilot_state
4030 .text_for_active_completion(cursor, &snapshot)
4031 {
4032 let text = Rope::from(text);
4033 let mut to_remove = Vec::new();
4034 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4035 to_remove.push(suggestion.id);
4036 }
4037
4038 let suggestion_inlay =
4039 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4040 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4041 self.display_map.update(cx, move |map, cx| {
4042 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4043 });
4044 cx.notify();
4045 } else {
4046 self.discard_copilot_suggestion(cx);
4047 }
4048 }
4049
4050 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4051 self.copilot_state = Default::default();
4052 self.discard_copilot_suggestion(cx);
4053 }
4054
4055 pub fn render_code_actions_indicator(
4056 &self,
4057 _style: &EditorStyle,
4058 is_active: bool,
4059 cx: &mut ViewContext<Self>,
4060 ) -> Option<IconButton> {
4061 if self.available_code_actions.is_some() {
4062 Some(
4063 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4064 .icon_size(IconSize::XSmall)
4065 .size(ui::ButtonSize::None)
4066 .icon_color(Color::Muted)
4067 .selected(is_active)
4068 .on_click(cx.listener(|editor, _e, cx| {
4069 editor.toggle_code_actions(
4070 &ToggleCodeActions {
4071 deployed_from_indicator: true,
4072 },
4073 cx,
4074 );
4075 })),
4076 )
4077 } else {
4078 None
4079 }
4080 }
4081
4082 pub fn render_fold_indicators(
4083 &self,
4084 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4085 _style: &EditorStyle,
4086 gutter_hovered: bool,
4087 _line_height: Pixels,
4088 _gutter_margin: Pixels,
4089 editor_view: View<Editor>,
4090 ) -> Vec<Option<IconButton>> {
4091 fold_data
4092 .iter()
4093 .enumerate()
4094 .map(|(ix, fold_data)| {
4095 fold_data
4096 .map(|(fold_status, buffer_row, active)| {
4097 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4098 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4099 .on_click({
4100 let view = editor_view.clone();
4101 move |_e, cx| {
4102 view.update(cx, |editor, cx| match fold_status {
4103 FoldStatus::Folded => {
4104 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4105 }
4106 FoldStatus::Foldable => {
4107 editor.fold_at(&FoldAt { buffer_row }, cx);
4108 }
4109 })
4110 }
4111 })
4112 .icon_color(ui::Color::Muted)
4113 .icon_size(ui::IconSize::Small)
4114 .selected(fold_status == FoldStatus::Folded)
4115 .selected_icon(ui::IconName::ChevronRight)
4116 .size(ui::ButtonSize::None)
4117 })
4118 })
4119 .flatten()
4120 })
4121 .collect()
4122 }
4123
4124 pub fn context_menu_visible(&self) -> bool {
4125 self.context_menu
4126 .read()
4127 .as_ref()
4128 .map_or(false, |menu| menu.visible())
4129 }
4130
4131 pub fn render_context_menu(
4132 &self,
4133 cursor_position: DisplayPoint,
4134 style: &EditorStyle,
4135 max_height: Pixels,
4136 cx: &mut ViewContext<Editor>,
4137 ) -> Option<(DisplayPoint, AnyElement)> {
4138 self.context_menu.read().as_ref().map(|menu| {
4139 menu.render(
4140 cursor_position,
4141 style,
4142 max_height,
4143 self.workspace.as_ref().map(|(w, _)| w.clone()),
4144 cx,
4145 )
4146 })
4147 }
4148
4149 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4150 cx.notify();
4151 self.completion_tasks.clear();
4152 let context_menu = self.context_menu.write().take();
4153 if context_menu.is_some() {
4154 self.update_visible_copilot_suggestion(cx);
4155 }
4156 context_menu
4157 }
4158
4159 pub fn insert_snippet(
4160 &mut self,
4161 insertion_ranges: &[Range<usize>],
4162 snippet: Snippet,
4163 cx: &mut ViewContext<Self>,
4164 ) -> Result<()> {
4165 let tabstops = self.buffer.update(cx, |buffer, cx| {
4166 let snippet_text: Arc<str> = snippet.text.clone().into();
4167 buffer.edit(
4168 insertion_ranges
4169 .iter()
4170 .cloned()
4171 .map(|range| (range, snippet_text.clone())),
4172 Some(AutoindentMode::EachLine),
4173 cx,
4174 );
4175
4176 let snapshot = &*buffer.read(cx);
4177 let snippet = &snippet;
4178 snippet
4179 .tabstops
4180 .iter()
4181 .map(|tabstop| {
4182 let mut tabstop_ranges = tabstop
4183 .iter()
4184 .flat_map(|tabstop_range| {
4185 let mut delta = 0_isize;
4186 insertion_ranges.iter().map(move |insertion_range| {
4187 let insertion_start = insertion_range.start as isize + delta;
4188 delta +=
4189 snippet.text.len() as isize - insertion_range.len() as isize;
4190
4191 let start = snapshot.anchor_before(
4192 (insertion_start + tabstop_range.start) as usize,
4193 );
4194 let end = snapshot
4195 .anchor_after((insertion_start + tabstop_range.end) as usize);
4196 start..end
4197 })
4198 })
4199 .collect::<Vec<_>>();
4200 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4201 tabstop_ranges
4202 })
4203 .collect::<Vec<_>>()
4204 });
4205
4206 if let Some(tabstop) = tabstops.first() {
4207 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4208 s.select_ranges(tabstop.iter().cloned());
4209 });
4210 self.snippet_stack.push(SnippetState {
4211 active_index: 0,
4212 ranges: tabstops,
4213 });
4214
4215 // Check whether the just-entered snippet ends with an auto-closable bracket.
4216 if self.autoclose_regions.is_empty() {
4217 let snapshot = self.buffer.read(cx).snapshot(cx);
4218 for selection in &mut self.selections.all::<Point>(cx) {
4219 let selection_head = selection.head();
4220 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4221 continue;
4222 };
4223
4224 let mut bracket_pair = None;
4225 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4226 let prev_chars = snapshot
4227 .reversed_chars_at(selection_head)
4228 .collect::<String>();
4229 for (pair, enabled) in scope.brackets() {
4230 if enabled
4231 && pair.close
4232 && prev_chars.starts_with(pair.start.as_str())
4233 && next_chars.starts_with(pair.end.as_str())
4234 {
4235 bracket_pair = Some(pair.clone());
4236 break;
4237 }
4238 }
4239 if let Some(pair) = bracket_pair {
4240 let start = snapshot.anchor_after(selection_head);
4241 let end = snapshot.anchor_after(selection_head);
4242 self.autoclose_regions.push(AutocloseRegion {
4243 selection_id: selection.id,
4244 range: start..end,
4245 pair,
4246 });
4247 }
4248 }
4249 }
4250 }
4251 Ok(())
4252 }
4253
4254 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4255 self.move_to_snippet_tabstop(Bias::Right, cx)
4256 }
4257
4258 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4259 self.move_to_snippet_tabstop(Bias::Left, cx)
4260 }
4261
4262 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4263 if let Some(mut snippet) = self.snippet_stack.pop() {
4264 match bias {
4265 Bias::Left => {
4266 if snippet.active_index > 0 {
4267 snippet.active_index -= 1;
4268 } else {
4269 self.snippet_stack.push(snippet);
4270 return false;
4271 }
4272 }
4273 Bias::Right => {
4274 if snippet.active_index + 1 < snippet.ranges.len() {
4275 snippet.active_index += 1;
4276 } else {
4277 self.snippet_stack.push(snippet);
4278 return false;
4279 }
4280 }
4281 }
4282 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4284 s.select_anchor_ranges(current_ranges.iter().cloned())
4285 });
4286 // If snippet state is not at the last tabstop, push it back on the stack
4287 if snippet.active_index + 1 < snippet.ranges.len() {
4288 self.snippet_stack.push(snippet);
4289 }
4290 return true;
4291 }
4292 }
4293
4294 false
4295 }
4296
4297 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4298 self.transact(cx, |this, cx| {
4299 this.select_all(&SelectAll, cx);
4300 this.insert("", cx);
4301 });
4302 }
4303
4304 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4305 self.transact(cx, |this, cx| {
4306 this.select_autoclose_pair(cx);
4307 let mut selections = this.selections.all::<Point>(cx);
4308 if !this.selections.line_mode {
4309 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4310 for selection in &mut selections {
4311 if selection.is_empty() {
4312 let old_head = selection.head();
4313 let mut new_head =
4314 movement::left(&display_map, old_head.to_display_point(&display_map))
4315 .to_point(&display_map);
4316 if let Some((buffer, line_buffer_range)) = display_map
4317 .buffer_snapshot
4318 .buffer_line_for_row(old_head.row)
4319 {
4320 let indent_size =
4321 buffer.indent_size_for_line(line_buffer_range.start.row);
4322 let indent_len = match indent_size.kind {
4323 IndentKind::Space => {
4324 buffer.settings_at(line_buffer_range.start, cx).tab_size
4325 }
4326 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4327 };
4328 if old_head.column <= indent_size.len && old_head.column > 0 {
4329 let indent_len = indent_len.get();
4330 new_head = cmp::min(
4331 new_head,
4332 Point::new(
4333 old_head.row,
4334 ((old_head.column - 1) / indent_len) * indent_len,
4335 ),
4336 );
4337 }
4338 }
4339
4340 selection.set_head(new_head, SelectionGoal::None);
4341 }
4342 }
4343 }
4344
4345 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4346 this.insert("", cx);
4347 this.refresh_copilot_suggestions(true, cx);
4348 });
4349 }
4350
4351 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4352 self.transact(cx, |this, cx| {
4353 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4354 let line_mode = s.line_mode;
4355 s.move_with(|map, selection| {
4356 if selection.is_empty() && !line_mode {
4357 let cursor = movement::right(map, selection.head());
4358 selection.end = cursor;
4359 selection.reversed = true;
4360 selection.goal = SelectionGoal::None;
4361 }
4362 })
4363 });
4364 this.insert("", cx);
4365 this.refresh_copilot_suggestions(true, cx);
4366 });
4367 }
4368
4369 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4370 if self.move_to_prev_snippet_tabstop(cx) {
4371 return;
4372 }
4373
4374 self.outdent(&Outdent, cx);
4375 }
4376
4377 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4378 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4379 return;
4380 }
4381
4382 let mut selections = self.selections.all_adjusted(cx);
4383 let buffer = self.buffer.read(cx);
4384 let snapshot = buffer.snapshot(cx);
4385 let rows_iter = selections.iter().map(|s| s.head().row);
4386 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4387
4388 let mut edits = Vec::new();
4389 let mut prev_edited_row = 0;
4390 let mut row_delta = 0;
4391 for selection in &mut selections {
4392 if selection.start.row != prev_edited_row {
4393 row_delta = 0;
4394 }
4395 prev_edited_row = selection.end.row;
4396
4397 // If the selection is non-empty, then increase the indentation of the selected lines.
4398 if !selection.is_empty() {
4399 row_delta =
4400 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4401 continue;
4402 }
4403
4404 // If the selection is empty and the cursor is in the leading whitespace before the
4405 // suggested indentation, then auto-indent the line.
4406 let cursor = selection.head();
4407 let current_indent = snapshot.indent_size_for_line(cursor.row);
4408 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4409 if cursor.column < suggested_indent.len
4410 && cursor.column <= current_indent.len
4411 && current_indent.len <= suggested_indent.len
4412 {
4413 selection.start = Point::new(cursor.row, suggested_indent.len);
4414 selection.end = selection.start;
4415 if row_delta == 0 {
4416 edits.extend(Buffer::edit_for_indent_size_adjustment(
4417 cursor.row,
4418 current_indent,
4419 suggested_indent,
4420 ));
4421 row_delta = suggested_indent.len - current_indent.len;
4422 }
4423 continue;
4424 }
4425 }
4426
4427 // Accept copilot suggestion if there is only one selection and the cursor is not
4428 // in the leading whitespace.
4429 if self.selections.count() == 1
4430 && cursor.column >= current_indent.len
4431 && self.has_active_copilot_suggestion(cx)
4432 {
4433 self.accept_copilot_suggestion(cx);
4434 return;
4435 }
4436
4437 // Otherwise, insert a hard or soft tab.
4438 let settings = buffer.settings_at(cursor, cx);
4439 let tab_size = if settings.hard_tabs {
4440 IndentSize::tab()
4441 } else {
4442 let tab_size = settings.tab_size.get();
4443 let char_column = snapshot
4444 .text_for_range(Point::new(cursor.row, 0)..cursor)
4445 .flat_map(str::chars)
4446 .count()
4447 + row_delta as usize;
4448 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4449 IndentSize::spaces(chars_to_next_tab_stop)
4450 };
4451 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4452 selection.end = selection.start;
4453 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4454 row_delta += tab_size.len;
4455 }
4456
4457 self.transact(cx, |this, cx| {
4458 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4459 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4460 this.refresh_copilot_suggestions(true, cx);
4461 });
4462 }
4463
4464 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4465 let mut selections = self.selections.all::<Point>(cx);
4466 let mut prev_edited_row = 0;
4467 let mut row_delta = 0;
4468 let mut edits = Vec::new();
4469 let buffer = self.buffer.read(cx);
4470 let snapshot = buffer.snapshot(cx);
4471 for selection in &mut selections {
4472 if selection.start.row != prev_edited_row {
4473 row_delta = 0;
4474 }
4475 prev_edited_row = selection.end.row;
4476
4477 row_delta =
4478 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4479 }
4480
4481 self.transact(cx, |this, cx| {
4482 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4483 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4484 });
4485 }
4486
4487 fn indent_selection(
4488 buffer: &MultiBuffer,
4489 snapshot: &MultiBufferSnapshot,
4490 selection: &mut Selection<Point>,
4491 edits: &mut Vec<(Range<Point>, String)>,
4492 delta_for_start_row: u32,
4493 cx: &AppContext,
4494 ) -> u32 {
4495 let settings = buffer.settings_at(selection.start, cx);
4496 let tab_size = settings.tab_size.get();
4497 let indent_kind = if settings.hard_tabs {
4498 IndentKind::Tab
4499 } else {
4500 IndentKind::Space
4501 };
4502 let mut start_row = selection.start.row;
4503 let mut end_row = selection.end.row + 1;
4504
4505 // If a selection ends at the beginning of a line, don't indent
4506 // that last line.
4507 if selection.end.column == 0 {
4508 end_row -= 1;
4509 }
4510
4511 // Avoid re-indenting a row that has already been indented by a
4512 // previous selection, but still update this selection's column
4513 // to reflect that indentation.
4514 if delta_for_start_row > 0 {
4515 start_row += 1;
4516 selection.start.column += delta_for_start_row;
4517 if selection.end.row == selection.start.row {
4518 selection.end.column += delta_for_start_row;
4519 }
4520 }
4521
4522 let mut delta_for_end_row = 0;
4523 for row in start_row..end_row {
4524 let current_indent = snapshot.indent_size_for_line(row);
4525 let indent_delta = match (current_indent.kind, indent_kind) {
4526 (IndentKind::Space, IndentKind::Space) => {
4527 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4528 IndentSize::spaces(columns_to_next_tab_stop)
4529 }
4530 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4531 (_, IndentKind::Tab) => IndentSize::tab(),
4532 };
4533
4534 let row_start = Point::new(row, 0);
4535 edits.push((
4536 row_start..row_start,
4537 indent_delta.chars().collect::<String>(),
4538 ));
4539
4540 // Update this selection's endpoints to reflect the indentation.
4541 if row == selection.start.row {
4542 selection.start.column += indent_delta.len;
4543 }
4544 if row == selection.end.row {
4545 selection.end.column += indent_delta.len;
4546 delta_for_end_row = indent_delta.len;
4547 }
4548 }
4549
4550 if selection.start.row == selection.end.row {
4551 delta_for_start_row + delta_for_end_row
4552 } else {
4553 delta_for_end_row
4554 }
4555 }
4556
4557 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4558 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4559 let selections = self.selections.all::<Point>(cx);
4560 let mut deletion_ranges = Vec::new();
4561 let mut last_outdent = None;
4562 {
4563 let buffer = self.buffer.read(cx);
4564 let snapshot = buffer.snapshot(cx);
4565 for selection in &selections {
4566 let settings = buffer.settings_at(selection.start, cx);
4567 let tab_size = settings.tab_size.get();
4568 let mut rows = selection.spanned_rows(false, &display_map);
4569
4570 // Avoid re-outdenting a row that has already been outdented by a
4571 // previous selection.
4572 if let Some(last_row) = last_outdent {
4573 if last_row == rows.start {
4574 rows.start += 1;
4575 }
4576 }
4577
4578 for row in rows {
4579 let indent_size = snapshot.indent_size_for_line(row);
4580 if indent_size.len > 0 {
4581 let deletion_len = match indent_size.kind {
4582 IndentKind::Space => {
4583 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4584 if columns_to_prev_tab_stop == 0 {
4585 tab_size
4586 } else {
4587 columns_to_prev_tab_stop
4588 }
4589 }
4590 IndentKind::Tab => 1,
4591 };
4592 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4593 last_outdent = Some(row);
4594 }
4595 }
4596 }
4597 }
4598
4599 self.transact(cx, |this, cx| {
4600 this.buffer.update(cx, |buffer, cx| {
4601 let empty_str: Arc<str> = "".into();
4602 buffer.edit(
4603 deletion_ranges
4604 .into_iter()
4605 .map(|range| (range, empty_str.clone())),
4606 None,
4607 cx,
4608 );
4609 });
4610 let selections = this.selections.all::<usize>(cx);
4611 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4612 });
4613 }
4614
4615 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4616 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4617 let selections = self.selections.all::<Point>(cx);
4618
4619 let mut new_cursors = Vec::new();
4620 let mut edit_ranges = Vec::new();
4621 let mut selections = selections.iter().peekable();
4622 while let Some(selection) = selections.next() {
4623 let mut rows = selection.spanned_rows(false, &display_map);
4624 let goal_display_column = selection.head().to_display_point(&display_map).column();
4625
4626 // Accumulate contiguous regions of rows that we want to delete.
4627 while let Some(next_selection) = selections.peek() {
4628 let next_rows = next_selection.spanned_rows(false, &display_map);
4629 if next_rows.start <= rows.end {
4630 rows.end = next_rows.end;
4631 selections.next().unwrap();
4632 } else {
4633 break;
4634 }
4635 }
4636
4637 let buffer = &display_map.buffer_snapshot;
4638 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4639 let edit_end;
4640 let cursor_buffer_row;
4641 if buffer.max_point().row >= rows.end {
4642 // If there's a line after the range, delete the \n from the end of the row range
4643 // and position the cursor on the next line.
4644 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4645 cursor_buffer_row = rows.end;
4646 } else {
4647 // If there isn't a line after the range, delete the \n from the line before the
4648 // start of the row range and position the cursor there.
4649 edit_start = edit_start.saturating_sub(1);
4650 edit_end = buffer.len();
4651 cursor_buffer_row = rows.start.saturating_sub(1);
4652 }
4653
4654 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4655 *cursor.column_mut() =
4656 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4657
4658 new_cursors.push((
4659 selection.id,
4660 buffer.anchor_after(cursor.to_point(&display_map)),
4661 ));
4662 edit_ranges.push(edit_start..edit_end);
4663 }
4664
4665 self.transact(cx, |this, cx| {
4666 let buffer = this.buffer.update(cx, |buffer, cx| {
4667 let empty_str: Arc<str> = "".into();
4668 buffer.edit(
4669 edit_ranges
4670 .into_iter()
4671 .map(|range| (range, empty_str.clone())),
4672 None,
4673 cx,
4674 );
4675 buffer.snapshot(cx)
4676 });
4677 let new_selections = new_cursors
4678 .into_iter()
4679 .map(|(id, cursor)| {
4680 let cursor = cursor.to_point(&buffer);
4681 Selection {
4682 id,
4683 start: cursor,
4684 end: cursor,
4685 reversed: false,
4686 goal: SelectionGoal::None,
4687 }
4688 })
4689 .collect();
4690
4691 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4692 s.select(new_selections);
4693 });
4694 });
4695 }
4696
4697 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4698 let mut row_ranges = Vec::<Range<u32>>::new();
4699 for selection in self.selections.all::<Point>(cx) {
4700 let start = selection.start.row;
4701 let end = if selection.start.row == selection.end.row {
4702 selection.start.row + 1
4703 } else {
4704 selection.end.row
4705 };
4706
4707 if let Some(last_row_range) = row_ranges.last_mut() {
4708 if start <= last_row_range.end {
4709 last_row_range.end = end;
4710 continue;
4711 }
4712 }
4713 row_ranges.push(start..end);
4714 }
4715
4716 let snapshot = self.buffer.read(cx).snapshot(cx);
4717 let mut cursor_positions = Vec::new();
4718 for row_range in &row_ranges {
4719 let anchor = snapshot.anchor_before(Point::new(
4720 row_range.end - 1,
4721 snapshot.line_len(row_range.end - 1),
4722 ));
4723 cursor_positions.push(anchor.clone()..anchor);
4724 }
4725
4726 self.transact(cx, |this, cx| {
4727 for row_range in row_ranges.into_iter().rev() {
4728 for row in row_range.rev() {
4729 let end_of_line = Point::new(row, snapshot.line_len(row));
4730 let indent = snapshot.indent_size_for_line(row + 1);
4731 let start_of_next_line = Point::new(row + 1, indent.len);
4732
4733 let replace = if snapshot.line_len(row + 1) > indent.len {
4734 " "
4735 } else {
4736 ""
4737 };
4738
4739 this.buffer.update(cx, |buffer, cx| {
4740 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4741 });
4742 }
4743 }
4744
4745 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4746 s.select_anchor_ranges(cursor_positions)
4747 });
4748 });
4749 }
4750
4751 pub fn sort_lines_case_sensitive(
4752 &mut self,
4753 _: &SortLinesCaseSensitive,
4754 cx: &mut ViewContext<Self>,
4755 ) {
4756 self.manipulate_lines(cx, |lines| lines.sort())
4757 }
4758
4759 pub fn sort_lines_case_insensitive(
4760 &mut self,
4761 _: &SortLinesCaseInsensitive,
4762 cx: &mut ViewContext<Self>,
4763 ) {
4764 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4765 }
4766
4767 pub fn unique_lines_case_insensitive(
4768 &mut self,
4769 _: &UniqueLinesCaseInsensitive,
4770 cx: &mut ViewContext<Self>,
4771 ) {
4772 self.manipulate_lines(cx, |lines| {
4773 let mut seen = HashSet::default();
4774 lines.retain(|line| seen.insert(line.to_lowercase()));
4775 })
4776 }
4777
4778 pub fn unique_lines_case_sensitive(
4779 &mut self,
4780 _: &UniqueLinesCaseSensitive,
4781 cx: &mut ViewContext<Self>,
4782 ) {
4783 self.manipulate_lines(cx, |lines| {
4784 let mut seen = HashSet::default();
4785 lines.retain(|line| seen.insert(*line));
4786 })
4787 }
4788
4789 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4790 self.manipulate_lines(cx, |lines| lines.reverse())
4791 }
4792
4793 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4794 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4795 }
4796
4797 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4798 where
4799 Fn: FnMut(&mut Vec<&str>),
4800 {
4801 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4802 let buffer = self.buffer.read(cx).snapshot(cx);
4803
4804 let mut edits = Vec::new();
4805
4806 let selections = self.selections.all::<Point>(cx);
4807 let mut selections = selections.iter().peekable();
4808 let mut contiguous_row_selections = Vec::new();
4809 let mut new_selections = Vec::new();
4810 let mut added_lines = 0;
4811 let mut removed_lines = 0;
4812
4813 while let Some(selection) = selections.next() {
4814 let (start_row, end_row) = consume_contiguous_rows(
4815 &mut contiguous_row_selections,
4816 selection,
4817 &display_map,
4818 &mut selections,
4819 );
4820
4821 let start_point = Point::new(start_row, 0);
4822 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4823 let text = buffer
4824 .text_for_range(start_point..end_point)
4825 .collect::<String>();
4826
4827 let mut lines = text.split("\n").collect_vec();
4828
4829 let lines_before = lines.len();
4830 callback(&mut lines);
4831 let lines_after = lines.len();
4832
4833 edits.push((start_point..end_point, lines.join("\n")));
4834
4835 // Selections must change based on added and removed line count
4836 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4837 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4838 new_selections.push(Selection {
4839 id: selection.id,
4840 start: start_row,
4841 end: end_row,
4842 goal: SelectionGoal::None,
4843 reversed: selection.reversed,
4844 });
4845
4846 if lines_after > lines_before {
4847 added_lines += lines_after - lines_before;
4848 } else if lines_before > lines_after {
4849 removed_lines += lines_before - lines_after;
4850 }
4851 }
4852
4853 self.transact(cx, |this, cx| {
4854 let buffer = this.buffer.update(cx, |buffer, cx| {
4855 buffer.edit(edits, None, cx);
4856 buffer.snapshot(cx)
4857 });
4858
4859 // Recalculate offsets on newly edited buffer
4860 let new_selections = new_selections
4861 .iter()
4862 .map(|s| {
4863 let start_point = Point::new(s.start, 0);
4864 let end_point = Point::new(s.end, buffer.line_len(s.end));
4865 Selection {
4866 id: s.id,
4867 start: buffer.point_to_offset(start_point),
4868 end: buffer.point_to_offset(end_point),
4869 goal: s.goal,
4870 reversed: s.reversed,
4871 }
4872 })
4873 .collect();
4874
4875 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4876 s.select(new_selections);
4877 });
4878
4879 this.request_autoscroll(Autoscroll::fit(), cx);
4880 });
4881 }
4882
4883 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4884 self.manipulate_text(cx, |text| text.to_uppercase())
4885 }
4886
4887 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4888 self.manipulate_text(cx, |text| text.to_lowercase())
4889 }
4890
4891 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4892 self.manipulate_text(cx, |text| {
4893 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4894 // https://github.com/rutrum/convert-case/issues/16
4895 text.split("\n")
4896 .map(|line| line.to_case(Case::Title))
4897 .join("\n")
4898 })
4899 }
4900
4901 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4902 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4903 }
4904
4905 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4906 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4907 }
4908
4909 pub fn convert_to_upper_camel_case(
4910 &mut self,
4911 _: &ConvertToUpperCamelCase,
4912 cx: &mut ViewContext<Self>,
4913 ) {
4914 self.manipulate_text(cx, |text| {
4915 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4916 // https://github.com/rutrum/convert-case/issues/16
4917 text.split("\n")
4918 .map(|line| line.to_case(Case::UpperCamel))
4919 .join("\n")
4920 })
4921 }
4922
4923 pub fn convert_to_lower_camel_case(
4924 &mut self,
4925 _: &ConvertToLowerCamelCase,
4926 cx: &mut ViewContext<Self>,
4927 ) {
4928 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4929 }
4930
4931 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4932 where
4933 Fn: FnMut(&str) -> String,
4934 {
4935 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4936 let buffer = self.buffer.read(cx).snapshot(cx);
4937
4938 let mut new_selections = Vec::new();
4939 let mut edits = Vec::new();
4940 let mut selection_adjustment = 0i32;
4941
4942 for selection in self.selections.all::<usize>(cx) {
4943 let selection_is_empty = selection.is_empty();
4944
4945 let (start, end) = if selection_is_empty {
4946 let word_range = movement::surrounding_word(
4947 &display_map,
4948 selection.start.to_display_point(&display_map),
4949 );
4950 let start = word_range.start.to_offset(&display_map, Bias::Left);
4951 let end = word_range.end.to_offset(&display_map, Bias::Left);
4952 (start, end)
4953 } else {
4954 (selection.start, selection.end)
4955 };
4956
4957 let text = buffer.text_for_range(start..end).collect::<String>();
4958 let old_length = text.len() as i32;
4959 let text = callback(&text);
4960
4961 new_selections.push(Selection {
4962 start: (start as i32 - selection_adjustment) as usize,
4963 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4964 goal: SelectionGoal::None,
4965 ..selection
4966 });
4967
4968 selection_adjustment += old_length - text.len() as i32;
4969
4970 edits.push((start..end, text));
4971 }
4972
4973 self.transact(cx, |this, cx| {
4974 this.buffer.update(cx, |buffer, cx| {
4975 buffer.edit(edits, None, cx);
4976 });
4977
4978 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4979 s.select(new_selections);
4980 });
4981
4982 this.request_autoscroll(Autoscroll::fit(), cx);
4983 });
4984 }
4985
4986 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4988 let buffer = &display_map.buffer_snapshot;
4989 let selections = self.selections.all::<Point>(cx);
4990
4991 let mut edits = Vec::new();
4992 let mut selections_iter = selections.iter().peekable();
4993 while let Some(selection) = selections_iter.next() {
4994 // Avoid duplicating the same lines twice.
4995 let mut rows = selection.spanned_rows(false, &display_map);
4996
4997 while let Some(next_selection) = selections_iter.peek() {
4998 let next_rows = next_selection.spanned_rows(false, &display_map);
4999 if next_rows.start < rows.end {
5000 rows.end = next_rows.end;
5001 selections_iter.next().unwrap();
5002 } else {
5003 break;
5004 }
5005 }
5006
5007 // Copy the text from the selected row region and splice it at the start of the region.
5008 let start = Point::new(rows.start, 0);
5009 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5010 let text = buffer
5011 .text_for_range(start..end)
5012 .chain(Some("\n"))
5013 .collect::<String>();
5014 edits.push((start..start, text));
5015 }
5016
5017 self.transact(cx, |this, cx| {
5018 this.buffer.update(cx, |buffer, cx| {
5019 buffer.edit(edits, None, cx);
5020 });
5021
5022 this.request_autoscroll(Autoscroll::fit(), cx);
5023 });
5024 }
5025
5026 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5027 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5028 let buffer = self.buffer.read(cx).snapshot(cx);
5029
5030 let mut edits = Vec::new();
5031 let mut unfold_ranges = Vec::new();
5032 let mut refold_ranges = Vec::new();
5033
5034 let selections = self.selections.all::<Point>(cx);
5035 let mut selections = selections.iter().peekable();
5036 let mut contiguous_row_selections = Vec::new();
5037 let mut new_selections = Vec::new();
5038
5039 while let Some(selection) = selections.next() {
5040 // Find all the selections that span a contiguous row range
5041 let (start_row, end_row) = consume_contiguous_rows(
5042 &mut contiguous_row_selections,
5043 selection,
5044 &display_map,
5045 &mut selections,
5046 );
5047
5048 // Move the text spanned by the row range to be before the line preceding the row range
5049 if start_row > 0 {
5050 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5051 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5052 let insertion_point = display_map
5053 .prev_line_boundary(Point::new(start_row - 1, 0))
5054 .0;
5055
5056 // Don't move lines across excerpts
5057 if buffer
5058 .excerpt_boundaries_in_range((
5059 Bound::Excluded(insertion_point),
5060 Bound::Included(range_to_move.end),
5061 ))
5062 .next()
5063 .is_none()
5064 {
5065 let text = buffer
5066 .text_for_range(range_to_move.clone())
5067 .flat_map(|s| s.chars())
5068 .skip(1)
5069 .chain(['\n'])
5070 .collect::<String>();
5071
5072 edits.push((
5073 buffer.anchor_after(range_to_move.start)
5074 ..buffer.anchor_before(range_to_move.end),
5075 String::new(),
5076 ));
5077 let insertion_anchor = buffer.anchor_after(insertion_point);
5078 edits.push((insertion_anchor..insertion_anchor, text));
5079
5080 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5081
5082 // Move selections up
5083 new_selections.extend(contiguous_row_selections.drain(..).map(
5084 |mut selection| {
5085 selection.start.row -= row_delta;
5086 selection.end.row -= row_delta;
5087 selection
5088 },
5089 ));
5090
5091 // Move folds up
5092 unfold_ranges.push(range_to_move.clone());
5093 for fold in display_map.folds_in_range(
5094 buffer.anchor_before(range_to_move.start)
5095 ..buffer.anchor_after(range_to_move.end),
5096 ) {
5097 let mut start = fold.range.start.to_point(&buffer);
5098 let mut end = fold.range.end.to_point(&buffer);
5099 start.row -= row_delta;
5100 end.row -= row_delta;
5101 refold_ranges.push(start..end);
5102 }
5103 }
5104 }
5105
5106 // If we didn't move line(s), preserve the existing selections
5107 new_selections.append(&mut contiguous_row_selections);
5108 }
5109
5110 self.transact(cx, |this, cx| {
5111 this.unfold_ranges(unfold_ranges, true, true, cx);
5112 this.buffer.update(cx, |buffer, cx| {
5113 for (range, text) in edits {
5114 buffer.edit([(range, text)], None, cx);
5115 }
5116 });
5117 this.fold_ranges(refold_ranges, true, cx);
5118 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5119 s.select(new_selections);
5120 })
5121 });
5122 }
5123
5124 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5125 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5126 let buffer = self.buffer.read(cx).snapshot(cx);
5127
5128 let mut edits = Vec::new();
5129 let mut unfold_ranges = Vec::new();
5130 let mut refold_ranges = Vec::new();
5131
5132 let selections = self.selections.all::<Point>(cx);
5133 let mut selections = selections.iter().peekable();
5134 let mut contiguous_row_selections = Vec::new();
5135 let mut new_selections = Vec::new();
5136
5137 while let Some(selection) = selections.next() {
5138 // Find all the selections that span a contiguous row range
5139 let (start_row, end_row) = consume_contiguous_rows(
5140 &mut contiguous_row_selections,
5141 selection,
5142 &display_map,
5143 &mut selections,
5144 );
5145
5146 // Move the text spanned by the row range to be after the last line of the row range
5147 if end_row <= buffer.max_point().row {
5148 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5149 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5150
5151 // Don't move lines across excerpt boundaries
5152 if buffer
5153 .excerpt_boundaries_in_range((
5154 Bound::Excluded(range_to_move.start),
5155 Bound::Included(insertion_point),
5156 ))
5157 .next()
5158 .is_none()
5159 {
5160 let mut text = String::from("\n");
5161 text.extend(buffer.text_for_range(range_to_move.clone()));
5162 text.pop(); // Drop trailing newline
5163 edits.push((
5164 buffer.anchor_after(range_to_move.start)
5165 ..buffer.anchor_before(range_to_move.end),
5166 String::new(),
5167 ));
5168 let insertion_anchor = buffer.anchor_after(insertion_point);
5169 edits.push((insertion_anchor..insertion_anchor, text));
5170
5171 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5172
5173 // Move selections down
5174 new_selections.extend(contiguous_row_selections.drain(..).map(
5175 |mut selection| {
5176 selection.start.row += row_delta;
5177 selection.end.row += row_delta;
5178 selection
5179 },
5180 ));
5181
5182 // Move folds down
5183 unfold_ranges.push(range_to_move.clone());
5184 for fold in display_map.folds_in_range(
5185 buffer.anchor_before(range_to_move.start)
5186 ..buffer.anchor_after(range_to_move.end),
5187 ) {
5188 let mut start = fold.range.start.to_point(&buffer);
5189 let mut end = fold.range.end.to_point(&buffer);
5190 start.row += row_delta;
5191 end.row += row_delta;
5192 refold_ranges.push(start..end);
5193 }
5194 }
5195 }
5196
5197 // If we didn't move line(s), preserve the existing selections
5198 new_selections.append(&mut contiguous_row_selections);
5199 }
5200
5201 self.transact(cx, |this, cx| {
5202 this.unfold_ranges(unfold_ranges, true, true, cx);
5203 this.buffer.update(cx, |buffer, cx| {
5204 for (range, text) in edits {
5205 buffer.edit([(range, text)], None, cx);
5206 }
5207 });
5208 this.fold_ranges(refold_ranges, true, cx);
5209 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5210 });
5211 }
5212
5213 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5214 let text_layout_details = &self.text_layout_details(cx);
5215 self.transact(cx, |this, cx| {
5216 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5217 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5218 let line_mode = s.line_mode;
5219 s.move_with(|display_map, selection| {
5220 if !selection.is_empty() || line_mode {
5221 return;
5222 }
5223
5224 let mut head = selection.head();
5225 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5226 if head.column() == display_map.line_len(head.row()) {
5227 transpose_offset = display_map
5228 .buffer_snapshot
5229 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5230 }
5231
5232 if transpose_offset == 0 {
5233 return;
5234 }
5235
5236 *head.column_mut() += 1;
5237 head = display_map.clip_point(head, Bias::Right);
5238 let goal = SelectionGoal::HorizontalPosition(
5239 display_map
5240 .x_for_display_point(head, &text_layout_details)
5241 .into(),
5242 );
5243 selection.collapse_to(head, goal);
5244
5245 let transpose_start = display_map
5246 .buffer_snapshot
5247 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5248 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5249 let transpose_end = display_map
5250 .buffer_snapshot
5251 .clip_offset(transpose_offset + 1, Bias::Right);
5252 if let Some(ch) =
5253 display_map.buffer_snapshot.chars_at(transpose_start).next()
5254 {
5255 edits.push((transpose_start..transpose_offset, String::new()));
5256 edits.push((transpose_end..transpose_end, ch.to_string()));
5257 }
5258 }
5259 });
5260 edits
5261 });
5262 this.buffer
5263 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5264 let selections = this.selections.all::<usize>(cx);
5265 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5266 s.select(selections);
5267 });
5268 });
5269 }
5270
5271 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5272 let mut text = String::new();
5273 let buffer = self.buffer.read(cx).snapshot(cx);
5274 let mut selections = self.selections.all::<Point>(cx);
5275 let mut clipboard_selections = Vec::with_capacity(selections.len());
5276 {
5277 let max_point = buffer.max_point();
5278 let mut is_first = true;
5279 for selection in &mut selections {
5280 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5281 if is_entire_line {
5282 selection.start = Point::new(selection.start.row, 0);
5283 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5284 selection.goal = SelectionGoal::None;
5285 }
5286 if is_first {
5287 is_first = false;
5288 } else {
5289 text += "\n";
5290 }
5291 let mut len = 0;
5292 for chunk in buffer.text_for_range(selection.start..selection.end) {
5293 text.push_str(chunk);
5294 len += chunk.len();
5295 }
5296 clipboard_selections.push(ClipboardSelection {
5297 len,
5298 is_entire_line,
5299 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5300 });
5301 }
5302 }
5303
5304 self.transact(cx, |this, cx| {
5305 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5306 s.select(selections);
5307 });
5308 this.insert("", cx);
5309 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5310 });
5311 }
5312
5313 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5314 let selections = self.selections.all::<Point>(cx);
5315 let buffer = self.buffer.read(cx).read(cx);
5316 let mut text = String::new();
5317
5318 let mut clipboard_selections = Vec::with_capacity(selections.len());
5319 {
5320 let max_point = buffer.max_point();
5321 let mut is_first = true;
5322 for selection in selections.iter() {
5323 let mut start = selection.start;
5324 let mut end = selection.end;
5325 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5326 if is_entire_line {
5327 start = Point::new(start.row, 0);
5328 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5329 }
5330 if is_first {
5331 is_first = false;
5332 } else {
5333 text += "\n";
5334 }
5335 let mut len = 0;
5336 for chunk in buffer.text_for_range(start..end) {
5337 text.push_str(chunk);
5338 len += chunk.len();
5339 }
5340 clipboard_selections.push(ClipboardSelection {
5341 len,
5342 is_entire_line,
5343 first_line_indent: buffer.indent_size_for_line(start.row).len,
5344 });
5345 }
5346 }
5347
5348 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5349 }
5350
5351 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5352 if self.read_only(cx) {
5353 return;
5354 }
5355
5356 self.transact(cx, |this, cx| {
5357 if let Some(item) = cx.read_from_clipboard() {
5358 let clipboard_text = Cow::Borrowed(item.text());
5359 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5360 let old_selections = this.selections.all::<usize>(cx);
5361 let all_selections_were_entire_line =
5362 clipboard_selections.iter().all(|s| s.is_entire_line);
5363 let first_selection_indent_column =
5364 clipboard_selections.first().map(|s| s.first_line_indent);
5365 if clipboard_selections.len() != old_selections.len() {
5366 clipboard_selections.drain(..);
5367 }
5368
5369 this.buffer.update(cx, |buffer, cx| {
5370 let snapshot = buffer.read(cx);
5371 let mut start_offset = 0;
5372 let mut edits = Vec::new();
5373 let mut original_indent_columns = Vec::new();
5374 let line_mode = this.selections.line_mode;
5375 for (ix, selection) in old_selections.iter().enumerate() {
5376 let to_insert;
5377 let entire_line;
5378 let original_indent_column;
5379 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5380 let end_offset = start_offset + clipboard_selection.len;
5381 to_insert = &clipboard_text[start_offset..end_offset];
5382 entire_line = clipboard_selection.is_entire_line;
5383 start_offset = end_offset + 1;
5384 original_indent_column =
5385 Some(clipboard_selection.first_line_indent);
5386 } else {
5387 to_insert = clipboard_text.as_str();
5388 entire_line = all_selections_were_entire_line;
5389 original_indent_column = first_selection_indent_column
5390 }
5391
5392 // If the corresponding selection was empty when this slice of the
5393 // clipboard text was written, then the entire line containing the
5394 // selection was copied. If this selection is also currently empty,
5395 // then paste the line before the current line of the buffer.
5396 let range = if selection.is_empty() && !line_mode && entire_line {
5397 let column = selection.start.to_point(&snapshot).column as usize;
5398 let line_start = selection.start - column;
5399 line_start..line_start
5400 } else {
5401 selection.range()
5402 };
5403
5404 edits.push((range, to_insert));
5405 original_indent_columns.extend(original_indent_column);
5406 }
5407 drop(snapshot);
5408
5409 buffer.edit(
5410 edits,
5411 Some(AutoindentMode::Block {
5412 original_indent_columns,
5413 }),
5414 cx,
5415 );
5416 });
5417
5418 let selections = this.selections.all::<usize>(cx);
5419 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5420 } else {
5421 this.insert(&clipboard_text, cx);
5422 }
5423 }
5424 });
5425 }
5426
5427 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5428 if self.read_only(cx) {
5429 return;
5430 }
5431
5432 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5433 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5434 self.change_selections(None, cx, |s| {
5435 s.select_anchors(selections.to_vec());
5436 });
5437 }
5438 self.request_autoscroll(Autoscroll::fit(), cx);
5439 self.unmark_text(cx);
5440 self.refresh_copilot_suggestions(true, cx);
5441 cx.emit(EditorEvent::Edited);
5442 }
5443 }
5444
5445 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5446 if self.read_only(cx) {
5447 return;
5448 }
5449
5450 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5451 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5452 {
5453 self.change_selections(None, cx, |s| {
5454 s.select_anchors(selections.to_vec());
5455 });
5456 }
5457 self.request_autoscroll(Autoscroll::fit(), cx);
5458 self.unmark_text(cx);
5459 self.refresh_copilot_suggestions(true, cx);
5460 cx.emit(EditorEvent::Edited);
5461 }
5462 }
5463
5464 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5465 self.buffer
5466 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5467 }
5468
5469 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5470 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5471 let line_mode = s.line_mode;
5472 s.move_with(|map, selection| {
5473 let cursor = if selection.is_empty() && !line_mode {
5474 movement::left(map, selection.start)
5475 } else {
5476 selection.start
5477 };
5478 selection.collapse_to(cursor, SelectionGoal::None);
5479 });
5480 })
5481 }
5482
5483 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5484 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5485 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5486 })
5487 }
5488
5489 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5490 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5491 let line_mode = s.line_mode;
5492 s.move_with(|map, selection| {
5493 let cursor = if selection.is_empty() && !line_mode {
5494 movement::right(map, selection.end)
5495 } else {
5496 selection.end
5497 };
5498 selection.collapse_to(cursor, SelectionGoal::None)
5499 });
5500 })
5501 }
5502
5503 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5504 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5505 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5506 })
5507 }
5508
5509 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5510 if self.take_rename(true, cx).is_some() {
5511 return;
5512 }
5513
5514 if matches!(self.mode, EditorMode::SingleLine) {
5515 cx.propagate();
5516 return;
5517 }
5518
5519 let text_layout_details = &self.text_layout_details(cx);
5520
5521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5522 let line_mode = s.line_mode;
5523 s.move_with(|map, selection| {
5524 if !selection.is_empty() && !line_mode {
5525 selection.goal = SelectionGoal::None;
5526 }
5527 let (cursor, goal) = movement::up(
5528 map,
5529 selection.start,
5530 selection.goal,
5531 false,
5532 &text_layout_details,
5533 );
5534 selection.collapse_to(cursor, goal);
5535 });
5536 })
5537 }
5538
5539 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5540 if self.take_rename(true, cx).is_some() {
5541 return;
5542 }
5543
5544 if matches!(self.mode, EditorMode::SingleLine) {
5545 cx.propagate();
5546 return;
5547 }
5548
5549 let text_layout_details = &self.text_layout_details(cx);
5550
5551 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5552 let line_mode = s.line_mode;
5553 s.move_with(|map, selection| {
5554 if !selection.is_empty() && !line_mode {
5555 selection.goal = SelectionGoal::None;
5556 }
5557 let (cursor, goal) = movement::up_by_rows(
5558 map,
5559 selection.start,
5560 action.lines,
5561 selection.goal,
5562 false,
5563 &text_layout_details,
5564 );
5565 selection.collapse_to(cursor, goal);
5566 });
5567 })
5568 }
5569
5570 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5571 if self.take_rename(true, cx).is_some() {
5572 return;
5573 }
5574
5575 if matches!(self.mode, EditorMode::SingleLine) {
5576 cx.propagate();
5577 return;
5578 }
5579
5580 let text_layout_details = &self.text_layout_details(cx);
5581
5582 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5583 let line_mode = s.line_mode;
5584 s.move_with(|map, selection| {
5585 if !selection.is_empty() && !line_mode {
5586 selection.goal = SelectionGoal::None;
5587 }
5588 let (cursor, goal) = movement::down_by_rows(
5589 map,
5590 selection.start,
5591 action.lines,
5592 selection.goal,
5593 false,
5594 &text_layout_details,
5595 );
5596 selection.collapse_to(cursor, goal);
5597 });
5598 })
5599 }
5600
5601 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5602 let text_layout_details = &self.text_layout_details(cx);
5603 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5604 s.move_heads_with(|map, head, goal| {
5605 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5606 })
5607 })
5608 }
5609
5610 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5611 let text_layout_details = &self.text_layout_details(cx);
5612 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5613 s.move_heads_with(|map, head, goal| {
5614 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5615 })
5616 })
5617 }
5618
5619 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5620 if self.take_rename(true, cx).is_some() {
5621 return;
5622 }
5623
5624 if matches!(self.mode, EditorMode::SingleLine) {
5625 cx.propagate();
5626 return;
5627 }
5628
5629 let row_count = if let Some(row_count) = self.visible_line_count() {
5630 row_count as u32 - 1
5631 } else {
5632 return;
5633 };
5634
5635 let autoscroll = if action.center_cursor {
5636 Autoscroll::center()
5637 } else {
5638 Autoscroll::fit()
5639 };
5640
5641 let text_layout_details = &self.text_layout_details(cx);
5642
5643 self.change_selections(Some(autoscroll), cx, |s| {
5644 let line_mode = s.line_mode;
5645 s.move_with(|map, selection| {
5646 if !selection.is_empty() && !line_mode {
5647 selection.goal = SelectionGoal::None;
5648 }
5649 let (cursor, goal) = movement::up_by_rows(
5650 map,
5651 selection.end,
5652 row_count,
5653 selection.goal,
5654 false,
5655 &text_layout_details,
5656 );
5657 selection.collapse_to(cursor, goal);
5658 });
5659 });
5660 }
5661
5662 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5663 let text_layout_details = &self.text_layout_details(cx);
5664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5665 s.move_heads_with(|map, head, goal| {
5666 movement::up(map, head, goal, false, &text_layout_details)
5667 })
5668 })
5669 }
5670
5671 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5672 self.take_rename(true, cx);
5673
5674 if self.mode == EditorMode::SingleLine {
5675 cx.propagate();
5676 return;
5677 }
5678
5679 let text_layout_details = &self.text_layout_details(cx);
5680 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5681 let line_mode = s.line_mode;
5682 s.move_with(|map, selection| {
5683 if !selection.is_empty() && !line_mode {
5684 selection.goal = SelectionGoal::None;
5685 }
5686 let (cursor, goal) = movement::down(
5687 map,
5688 selection.end,
5689 selection.goal,
5690 false,
5691 &text_layout_details,
5692 );
5693 selection.collapse_to(cursor, goal);
5694 });
5695 });
5696 }
5697
5698 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5699 if self.take_rename(true, cx).is_some() {
5700 return;
5701 }
5702
5703 if self
5704 .context_menu
5705 .write()
5706 .as_mut()
5707 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5708 .unwrap_or(false)
5709 {
5710 return;
5711 }
5712
5713 if matches!(self.mode, EditorMode::SingleLine) {
5714 cx.propagate();
5715 return;
5716 }
5717
5718 let row_count = if let Some(row_count) = self.visible_line_count() {
5719 row_count as u32 - 1
5720 } else {
5721 return;
5722 };
5723
5724 let autoscroll = if action.center_cursor {
5725 Autoscroll::center()
5726 } else {
5727 Autoscroll::fit()
5728 };
5729
5730 let text_layout_details = &self.text_layout_details(cx);
5731 self.change_selections(Some(autoscroll), cx, |s| {
5732 let line_mode = s.line_mode;
5733 s.move_with(|map, selection| {
5734 if !selection.is_empty() && !line_mode {
5735 selection.goal = SelectionGoal::None;
5736 }
5737 let (cursor, goal) = movement::down_by_rows(
5738 map,
5739 selection.end,
5740 row_count,
5741 selection.goal,
5742 false,
5743 &text_layout_details,
5744 );
5745 selection.collapse_to(cursor, goal);
5746 });
5747 });
5748 }
5749
5750 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5751 let text_layout_details = &self.text_layout_details(cx);
5752 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5753 s.move_heads_with(|map, head, goal| {
5754 movement::down(map, head, goal, false, &text_layout_details)
5755 })
5756 });
5757 }
5758
5759 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5760 if let Some(context_menu) = self.context_menu.write().as_mut() {
5761 context_menu.select_first(self.project.as_ref(), cx);
5762 }
5763 }
5764
5765 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5766 if let Some(context_menu) = self.context_menu.write().as_mut() {
5767 context_menu.select_prev(self.project.as_ref(), cx);
5768 }
5769 }
5770
5771 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5772 if let Some(context_menu) = self.context_menu.write().as_mut() {
5773 context_menu.select_next(self.project.as_ref(), cx);
5774 }
5775 }
5776
5777 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5778 if let Some(context_menu) = self.context_menu.write().as_mut() {
5779 context_menu.select_last(self.project.as_ref(), cx);
5780 }
5781 }
5782
5783 pub fn move_to_previous_word_start(
5784 &mut self,
5785 _: &MoveToPreviousWordStart,
5786 cx: &mut ViewContext<Self>,
5787 ) {
5788 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5789 s.move_cursors_with(|map, head, _| {
5790 (
5791 movement::previous_word_start(map, head),
5792 SelectionGoal::None,
5793 )
5794 });
5795 })
5796 }
5797
5798 pub fn move_to_previous_subword_start(
5799 &mut self,
5800 _: &MoveToPreviousSubwordStart,
5801 cx: &mut ViewContext<Self>,
5802 ) {
5803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5804 s.move_cursors_with(|map, head, _| {
5805 (
5806 movement::previous_subword_start(map, head),
5807 SelectionGoal::None,
5808 )
5809 });
5810 })
5811 }
5812
5813 pub fn select_to_previous_word_start(
5814 &mut self,
5815 _: &SelectToPreviousWordStart,
5816 cx: &mut ViewContext<Self>,
5817 ) {
5818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5819 s.move_heads_with(|map, head, _| {
5820 (
5821 movement::previous_word_start(map, head),
5822 SelectionGoal::None,
5823 )
5824 });
5825 })
5826 }
5827
5828 pub fn select_to_previous_subword_start(
5829 &mut self,
5830 _: &SelectToPreviousSubwordStart,
5831 cx: &mut ViewContext<Self>,
5832 ) {
5833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5834 s.move_heads_with(|map, head, _| {
5835 (
5836 movement::previous_subword_start(map, head),
5837 SelectionGoal::None,
5838 )
5839 });
5840 })
5841 }
5842
5843 pub fn delete_to_previous_word_start(
5844 &mut self,
5845 _: &DeleteToPreviousWordStart,
5846 cx: &mut ViewContext<Self>,
5847 ) {
5848 self.transact(cx, |this, cx| {
5849 this.select_autoclose_pair(cx);
5850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 let line_mode = s.line_mode;
5852 s.move_with(|map, selection| {
5853 if selection.is_empty() && !line_mode {
5854 let cursor = movement::previous_word_start(map, selection.head());
5855 selection.set_head(cursor, SelectionGoal::None);
5856 }
5857 });
5858 });
5859 this.insert("", cx);
5860 });
5861 }
5862
5863 pub fn delete_to_previous_subword_start(
5864 &mut self,
5865 _: &DeleteToPreviousSubwordStart,
5866 cx: &mut ViewContext<Self>,
5867 ) {
5868 self.transact(cx, |this, cx| {
5869 this.select_autoclose_pair(cx);
5870 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5871 let line_mode = s.line_mode;
5872 s.move_with(|map, selection| {
5873 if selection.is_empty() && !line_mode {
5874 let cursor = movement::previous_subword_start(map, selection.head());
5875 selection.set_head(cursor, SelectionGoal::None);
5876 }
5877 });
5878 });
5879 this.insert("", cx);
5880 });
5881 }
5882
5883 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5884 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5885 s.move_cursors_with(|map, head, _| {
5886 (movement::next_word_end(map, head), SelectionGoal::None)
5887 });
5888 })
5889 }
5890
5891 pub fn move_to_next_subword_end(
5892 &mut self,
5893 _: &MoveToNextSubwordEnd,
5894 cx: &mut ViewContext<Self>,
5895 ) {
5896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5897 s.move_cursors_with(|map, head, _| {
5898 (movement::next_subword_end(map, head), SelectionGoal::None)
5899 });
5900 })
5901 }
5902
5903 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5905 s.move_heads_with(|map, head, _| {
5906 (movement::next_word_end(map, head), SelectionGoal::None)
5907 });
5908 })
5909 }
5910
5911 pub fn select_to_next_subword_end(
5912 &mut self,
5913 _: &SelectToNextSubwordEnd,
5914 cx: &mut ViewContext<Self>,
5915 ) {
5916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5917 s.move_heads_with(|map, head, _| {
5918 (movement::next_subword_end(map, head), SelectionGoal::None)
5919 });
5920 })
5921 }
5922
5923 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5924 self.transact(cx, |this, cx| {
5925 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5926 let line_mode = s.line_mode;
5927 s.move_with(|map, selection| {
5928 if selection.is_empty() && !line_mode {
5929 let cursor = movement::next_word_end(map, selection.head());
5930 selection.set_head(cursor, SelectionGoal::None);
5931 }
5932 });
5933 });
5934 this.insert("", cx);
5935 });
5936 }
5937
5938 pub fn delete_to_next_subword_end(
5939 &mut self,
5940 _: &DeleteToNextSubwordEnd,
5941 cx: &mut ViewContext<Self>,
5942 ) {
5943 self.transact(cx, |this, cx| {
5944 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5945 s.move_with(|map, selection| {
5946 if selection.is_empty() {
5947 let cursor = movement::next_subword_end(map, selection.head());
5948 selection.set_head(cursor, SelectionGoal::None);
5949 }
5950 });
5951 });
5952 this.insert("", cx);
5953 });
5954 }
5955
5956 pub fn move_to_beginning_of_line(
5957 &mut self,
5958 _: &MoveToBeginningOfLine,
5959 cx: &mut ViewContext<Self>,
5960 ) {
5961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5962 s.move_cursors_with(|map, head, _| {
5963 (
5964 movement::indented_line_beginning(map, head, true),
5965 SelectionGoal::None,
5966 )
5967 });
5968 })
5969 }
5970
5971 pub fn select_to_beginning_of_line(
5972 &mut self,
5973 action: &SelectToBeginningOfLine,
5974 cx: &mut ViewContext<Self>,
5975 ) {
5976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5977 s.move_heads_with(|map, head, _| {
5978 (
5979 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5980 SelectionGoal::None,
5981 )
5982 });
5983 });
5984 }
5985
5986 pub fn delete_to_beginning_of_line(
5987 &mut self,
5988 _: &DeleteToBeginningOfLine,
5989 cx: &mut ViewContext<Self>,
5990 ) {
5991 self.transact(cx, |this, cx| {
5992 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5993 s.move_with(|_, selection| {
5994 selection.reversed = true;
5995 });
5996 });
5997
5998 this.select_to_beginning_of_line(
5999 &SelectToBeginningOfLine {
6000 stop_at_soft_wraps: false,
6001 },
6002 cx,
6003 );
6004 this.backspace(&Backspace, cx);
6005 });
6006 }
6007
6008 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6009 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6010 s.move_cursors_with(|map, head, _| {
6011 (movement::line_end(map, head, true), SelectionGoal::None)
6012 });
6013 })
6014 }
6015
6016 pub fn select_to_end_of_line(
6017 &mut self,
6018 action: &SelectToEndOfLine,
6019 cx: &mut ViewContext<Self>,
6020 ) {
6021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6022 s.move_heads_with(|map, head, _| {
6023 (
6024 movement::line_end(map, head, action.stop_at_soft_wraps),
6025 SelectionGoal::None,
6026 )
6027 });
6028 })
6029 }
6030
6031 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6032 self.transact(cx, |this, cx| {
6033 this.select_to_end_of_line(
6034 &SelectToEndOfLine {
6035 stop_at_soft_wraps: false,
6036 },
6037 cx,
6038 );
6039 this.delete(&Delete, cx);
6040 });
6041 }
6042
6043 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6044 self.transact(cx, |this, cx| {
6045 this.select_to_end_of_line(
6046 &SelectToEndOfLine {
6047 stop_at_soft_wraps: false,
6048 },
6049 cx,
6050 );
6051 this.cut(&Cut, cx);
6052 });
6053 }
6054
6055 pub fn move_to_start_of_paragraph(
6056 &mut self,
6057 _: &MoveToStartOfParagraph,
6058 cx: &mut ViewContext<Self>,
6059 ) {
6060 if matches!(self.mode, EditorMode::SingleLine) {
6061 cx.propagate();
6062 return;
6063 }
6064
6065 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6066 s.move_with(|map, selection| {
6067 selection.collapse_to(
6068 movement::start_of_paragraph(map, selection.head(), 1),
6069 SelectionGoal::None,
6070 )
6071 });
6072 })
6073 }
6074
6075 pub fn move_to_end_of_paragraph(
6076 &mut self,
6077 _: &MoveToEndOfParagraph,
6078 cx: &mut ViewContext<Self>,
6079 ) {
6080 if matches!(self.mode, EditorMode::SingleLine) {
6081 cx.propagate();
6082 return;
6083 }
6084
6085 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6086 s.move_with(|map, selection| {
6087 selection.collapse_to(
6088 movement::end_of_paragraph(map, selection.head(), 1),
6089 SelectionGoal::None,
6090 )
6091 });
6092 })
6093 }
6094
6095 pub fn select_to_start_of_paragraph(
6096 &mut self,
6097 _: &SelectToStartOfParagraph,
6098 cx: &mut ViewContext<Self>,
6099 ) {
6100 if matches!(self.mode, EditorMode::SingleLine) {
6101 cx.propagate();
6102 return;
6103 }
6104
6105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6106 s.move_heads_with(|map, head, _| {
6107 (
6108 movement::start_of_paragraph(map, head, 1),
6109 SelectionGoal::None,
6110 )
6111 });
6112 })
6113 }
6114
6115 pub fn select_to_end_of_paragraph(
6116 &mut self,
6117 _: &SelectToEndOfParagraph,
6118 cx: &mut ViewContext<Self>,
6119 ) {
6120 if matches!(self.mode, EditorMode::SingleLine) {
6121 cx.propagate();
6122 return;
6123 }
6124
6125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6126 s.move_heads_with(|map, head, _| {
6127 (
6128 movement::end_of_paragraph(map, head, 1),
6129 SelectionGoal::None,
6130 )
6131 });
6132 })
6133 }
6134
6135 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6136 if matches!(self.mode, EditorMode::SingleLine) {
6137 cx.propagate();
6138 return;
6139 }
6140
6141 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6142 s.select_ranges(vec![0..0]);
6143 });
6144 }
6145
6146 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6147 let mut selection = self.selections.last::<Point>(cx);
6148 selection.set_head(Point::zero(), SelectionGoal::None);
6149
6150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6151 s.select(vec![selection]);
6152 });
6153 }
6154
6155 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6156 if matches!(self.mode, EditorMode::SingleLine) {
6157 cx.propagate();
6158 return;
6159 }
6160
6161 let cursor = self.buffer.read(cx).read(cx).len();
6162 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6163 s.select_ranges(vec![cursor..cursor])
6164 });
6165 }
6166
6167 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6168 self.nav_history = nav_history;
6169 }
6170
6171 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6172 self.nav_history.as_ref()
6173 }
6174
6175 fn push_to_nav_history(
6176 &mut self,
6177 cursor_anchor: Anchor,
6178 new_position: Option<Point>,
6179 cx: &mut ViewContext<Self>,
6180 ) {
6181 if let Some(nav_history) = self.nav_history.as_mut() {
6182 let buffer = self.buffer.read(cx).read(cx);
6183 let cursor_position = cursor_anchor.to_point(&buffer);
6184 let scroll_state = self.scroll_manager.anchor();
6185 let scroll_top_row = scroll_state.top_row(&buffer);
6186 drop(buffer);
6187
6188 if let Some(new_position) = new_position {
6189 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6190 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6191 return;
6192 }
6193 }
6194
6195 nav_history.push(
6196 Some(NavigationData {
6197 cursor_anchor,
6198 cursor_position,
6199 scroll_anchor: scroll_state,
6200 scroll_top_row,
6201 }),
6202 cx,
6203 );
6204 }
6205 }
6206
6207 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6208 let buffer = self.buffer.read(cx).snapshot(cx);
6209 let mut selection = self.selections.first::<usize>(cx);
6210 selection.set_head(buffer.len(), SelectionGoal::None);
6211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6212 s.select(vec![selection]);
6213 });
6214 }
6215
6216 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6217 let end = self.buffer.read(cx).read(cx).len();
6218 self.change_selections(None, cx, |s| {
6219 s.select_ranges(vec![0..end]);
6220 });
6221 }
6222
6223 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6224 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6225 let mut selections = self.selections.all::<Point>(cx);
6226 let max_point = display_map.buffer_snapshot.max_point();
6227 for selection in &mut selections {
6228 let rows = selection.spanned_rows(true, &display_map);
6229 selection.start = Point::new(rows.start, 0);
6230 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6231 selection.reversed = false;
6232 }
6233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6234 s.select(selections);
6235 });
6236 }
6237
6238 pub fn split_selection_into_lines(
6239 &mut self,
6240 _: &SplitSelectionIntoLines,
6241 cx: &mut ViewContext<Self>,
6242 ) {
6243 let mut to_unfold = Vec::new();
6244 let mut new_selection_ranges = Vec::new();
6245 {
6246 let selections = self.selections.all::<Point>(cx);
6247 let buffer = self.buffer.read(cx).read(cx);
6248 for selection in selections {
6249 for row in selection.start.row..selection.end.row {
6250 let cursor = Point::new(row, buffer.line_len(row));
6251 new_selection_ranges.push(cursor..cursor);
6252 }
6253 new_selection_ranges.push(selection.end..selection.end);
6254 to_unfold.push(selection.start..selection.end);
6255 }
6256 }
6257 self.unfold_ranges(to_unfold, true, true, cx);
6258 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6259 s.select_ranges(new_selection_ranges);
6260 });
6261 }
6262
6263 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6264 self.add_selection(true, cx);
6265 }
6266
6267 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6268 self.add_selection(false, cx);
6269 }
6270
6271 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6272 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6273 let mut selections = self.selections.all::<Point>(cx);
6274 let text_layout_details = self.text_layout_details(cx);
6275 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6276 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6277 let range = oldest_selection.display_range(&display_map).sorted();
6278
6279 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6280 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6281 let positions = start_x.min(end_x)..start_x.max(end_x);
6282
6283 selections.clear();
6284 let mut stack = Vec::new();
6285 for row in range.start.row()..=range.end.row() {
6286 if let Some(selection) = self.selections.build_columnar_selection(
6287 &display_map,
6288 row,
6289 &positions,
6290 oldest_selection.reversed,
6291 &text_layout_details,
6292 ) {
6293 stack.push(selection.id);
6294 selections.push(selection);
6295 }
6296 }
6297
6298 if above {
6299 stack.reverse();
6300 }
6301
6302 AddSelectionsState { above, stack }
6303 });
6304
6305 let last_added_selection = *state.stack.last().unwrap();
6306 let mut new_selections = Vec::new();
6307 if above == state.above {
6308 let end_row = if above {
6309 0
6310 } else {
6311 display_map.max_point().row()
6312 };
6313
6314 'outer: for selection in selections {
6315 if selection.id == last_added_selection {
6316 let range = selection.display_range(&display_map).sorted();
6317 debug_assert_eq!(range.start.row(), range.end.row());
6318 let mut row = range.start.row();
6319 let positions =
6320 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6321 px(start)..px(end)
6322 } else {
6323 let start_x =
6324 display_map.x_for_display_point(range.start, &text_layout_details);
6325 let end_x =
6326 display_map.x_for_display_point(range.end, &text_layout_details);
6327 start_x.min(end_x)..start_x.max(end_x)
6328 };
6329
6330 while row != end_row {
6331 if above {
6332 row -= 1;
6333 } else {
6334 row += 1;
6335 }
6336
6337 if let Some(new_selection) = self.selections.build_columnar_selection(
6338 &display_map,
6339 row,
6340 &positions,
6341 selection.reversed,
6342 &text_layout_details,
6343 ) {
6344 state.stack.push(new_selection.id);
6345 if above {
6346 new_selections.push(new_selection);
6347 new_selections.push(selection);
6348 } else {
6349 new_selections.push(selection);
6350 new_selections.push(new_selection);
6351 }
6352
6353 continue 'outer;
6354 }
6355 }
6356 }
6357
6358 new_selections.push(selection);
6359 }
6360 } else {
6361 new_selections = selections;
6362 new_selections.retain(|s| s.id != last_added_selection);
6363 state.stack.pop();
6364 }
6365
6366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6367 s.select(new_selections);
6368 });
6369 if state.stack.len() > 1 {
6370 self.add_selections_state = Some(state);
6371 }
6372 }
6373
6374 pub fn select_next_match_internal(
6375 &mut self,
6376 display_map: &DisplaySnapshot,
6377 replace_newest: bool,
6378 autoscroll: Option<Autoscroll>,
6379 cx: &mut ViewContext<Self>,
6380 ) -> Result<()> {
6381 fn select_next_match_ranges(
6382 this: &mut Editor,
6383 range: Range<usize>,
6384 replace_newest: bool,
6385 auto_scroll: Option<Autoscroll>,
6386 cx: &mut ViewContext<Editor>,
6387 ) {
6388 this.unfold_ranges([range.clone()], false, true, cx);
6389 this.change_selections(auto_scroll, cx, |s| {
6390 if replace_newest {
6391 s.delete(s.newest_anchor().id);
6392 }
6393 s.insert_range(range.clone());
6394 });
6395 }
6396
6397 let buffer = &display_map.buffer_snapshot;
6398 let mut selections = self.selections.all::<usize>(cx);
6399 if let Some(mut select_next_state) = self.select_next_state.take() {
6400 let query = &select_next_state.query;
6401 if !select_next_state.done {
6402 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6403 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6404 let mut next_selected_range = None;
6405
6406 let bytes_after_last_selection =
6407 buffer.bytes_in_range(last_selection.end..buffer.len());
6408 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6409 let query_matches = query
6410 .stream_find_iter(bytes_after_last_selection)
6411 .map(|result| (last_selection.end, result))
6412 .chain(
6413 query
6414 .stream_find_iter(bytes_before_first_selection)
6415 .map(|result| (0, result)),
6416 );
6417
6418 for (start_offset, query_match) in query_matches {
6419 let query_match = query_match.unwrap(); // can only fail due to I/O
6420 let offset_range =
6421 start_offset + query_match.start()..start_offset + query_match.end();
6422 let display_range = offset_range.start.to_display_point(&display_map)
6423 ..offset_range.end.to_display_point(&display_map);
6424
6425 if !select_next_state.wordwise
6426 || (!movement::is_inside_word(&display_map, display_range.start)
6427 && !movement::is_inside_word(&display_map, display_range.end))
6428 {
6429 // TODO: This is n^2, because we might check all the selections
6430 if selections
6431 .iter()
6432 .find(|selection| selection.range().overlaps(&offset_range))
6433 .is_none()
6434 {
6435 next_selected_range = Some(offset_range);
6436 break;
6437 }
6438 }
6439 }
6440
6441 if let Some(next_selected_range) = next_selected_range {
6442 select_next_match_ranges(
6443 self,
6444 next_selected_range,
6445 replace_newest,
6446 autoscroll,
6447 cx,
6448 );
6449 } else {
6450 select_next_state.done = true;
6451 }
6452 }
6453
6454 self.select_next_state = Some(select_next_state);
6455 } else {
6456 let mut only_carets = true;
6457 let mut same_text_selected = true;
6458 let mut selected_text = None;
6459
6460 let mut selections_iter = selections.iter().peekable();
6461 while let Some(selection) = selections_iter.next() {
6462 if selection.start != selection.end {
6463 only_carets = false;
6464 }
6465
6466 if same_text_selected {
6467 if selected_text.is_none() {
6468 selected_text =
6469 Some(buffer.text_for_range(selection.range()).collect::<String>());
6470 }
6471
6472 if let Some(next_selection) = selections_iter.peek() {
6473 if next_selection.range().len() == selection.range().len() {
6474 let next_selected_text = buffer
6475 .text_for_range(next_selection.range())
6476 .collect::<String>();
6477 if Some(next_selected_text) != selected_text {
6478 same_text_selected = false;
6479 selected_text = None;
6480 }
6481 } else {
6482 same_text_selected = false;
6483 selected_text = None;
6484 }
6485 }
6486 }
6487 }
6488
6489 if only_carets {
6490 for selection in &mut selections {
6491 let word_range = movement::surrounding_word(
6492 &display_map,
6493 selection.start.to_display_point(&display_map),
6494 );
6495 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6496 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6497 selection.goal = SelectionGoal::None;
6498 selection.reversed = false;
6499 select_next_match_ranges(
6500 self,
6501 selection.start..selection.end,
6502 replace_newest,
6503 autoscroll,
6504 cx,
6505 );
6506 }
6507
6508 if selections.len() == 1 {
6509 let selection = selections
6510 .last()
6511 .expect("ensured that there's only one selection");
6512 let query = buffer
6513 .text_for_range(selection.start..selection.end)
6514 .collect::<String>();
6515 let is_empty = query.is_empty();
6516 let select_state = SelectNextState {
6517 query: AhoCorasick::new(&[query])?,
6518 wordwise: true,
6519 done: is_empty,
6520 };
6521 self.select_next_state = Some(select_state);
6522 } else {
6523 self.select_next_state = None;
6524 }
6525 } else if let Some(selected_text) = selected_text {
6526 self.select_next_state = Some(SelectNextState {
6527 query: AhoCorasick::new(&[selected_text])?,
6528 wordwise: false,
6529 done: false,
6530 });
6531 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6532 }
6533 }
6534 Ok(())
6535 }
6536
6537 pub fn select_all_matches(
6538 &mut self,
6539 _action: &SelectAllMatches,
6540 cx: &mut ViewContext<Self>,
6541 ) -> Result<()> {
6542 self.push_to_selection_history();
6543 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6544
6545 self.select_next_match_internal(&display_map, false, None, cx)?;
6546 let Some(select_next_state) = self.select_next_state.as_mut() else {
6547 return Ok(());
6548 };
6549 if select_next_state.done {
6550 return Ok(());
6551 }
6552
6553 let mut new_selections = self.selections.all::<usize>(cx);
6554
6555 let buffer = &display_map.buffer_snapshot;
6556 let query_matches = select_next_state
6557 .query
6558 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6559
6560 for query_match in query_matches {
6561 let query_match = query_match.unwrap(); // can only fail due to I/O
6562 let offset_range = query_match.start()..query_match.end();
6563 let display_range = offset_range.start.to_display_point(&display_map)
6564 ..offset_range.end.to_display_point(&display_map);
6565
6566 if !select_next_state.wordwise
6567 || (!movement::is_inside_word(&display_map, display_range.start)
6568 && !movement::is_inside_word(&display_map, display_range.end))
6569 {
6570 self.selections.change_with(cx, |selections| {
6571 new_selections.push(Selection {
6572 id: selections.new_selection_id(),
6573 start: offset_range.start,
6574 end: offset_range.end,
6575 reversed: false,
6576 goal: SelectionGoal::None,
6577 });
6578 });
6579 }
6580 }
6581
6582 new_selections.sort_by_key(|selection| selection.start);
6583 let mut ix = 0;
6584 while ix + 1 < new_selections.len() {
6585 let current_selection = &new_selections[ix];
6586 let next_selection = &new_selections[ix + 1];
6587 if current_selection.range().overlaps(&next_selection.range()) {
6588 if current_selection.id < next_selection.id {
6589 new_selections.remove(ix + 1);
6590 } else {
6591 new_selections.remove(ix);
6592 }
6593 } else {
6594 ix += 1;
6595 }
6596 }
6597
6598 select_next_state.done = true;
6599 self.unfold_ranges(
6600 new_selections.iter().map(|selection| selection.range()),
6601 false,
6602 false,
6603 cx,
6604 );
6605 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6606 selections.select(new_selections)
6607 });
6608
6609 Ok(())
6610 }
6611
6612 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6613 self.push_to_selection_history();
6614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6615 self.select_next_match_internal(
6616 &display_map,
6617 action.replace_newest,
6618 Some(Autoscroll::newest()),
6619 cx,
6620 )?;
6621 Ok(())
6622 }
6623
6624 pub fn select_previous(
6625 &mut self,
6626 action: &SelectPrevious,
6627 cx: &mut ViewContext<Self>,
6628 ) -> Result<()> {
6629 self.push_to_selection_history();
6630 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6631 let buffer = &display_map.buffer_snapshot;
6632 let mut selections = self.selections.all::<usize>(cx);
6633 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6634 let query = &select_prev_state.query;
6635 if !select_prev_state.done {
6636 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6637 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6638 let mut next_selected_range = None;
6639 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6640 let bytes_before_last_selection =
6641 buffer.reversed_bytes_in_range(0..last_selection.start);
6642 let bytes_after_first_selection =
6643 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6644 let query_matches = query
6645 .stream_find_iter(bytes_before_last_selection)
6646 .map(|result| (last_selection.start, result))
6647 .chain(
6648 query
6649 .stream_find_iter(bytes_after_first_selection)
6650 .map(|result| (buffer.len(), result)),
6651 );
6652 for (end_offset, query_match) in query_matches {
6653 let query_match = query_match.unwrap(); // can only fail due to I/O
6654 let offset_range =
6655 end_offset - query_match.end()..end_offset - query_match.start();
6656 let display_range = offset_range.start.to_display_point(&display_map)
6657 ..offset_range.end.to_display_point(&display_map);
6658
6659 if !select_prev_state.wordwise
6660 || (!movement::is_inside_word(&display_map, display_range.start)
6661 && !movement::is_inside_word(&display_map, display_range.end))
6662 {
6663 next_selected_range = Some(offset_range);
6664 break;
6665 }
6666 }
6667
6668 if let Some(next_selected_range) = next_selected_range {
6669 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6670 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6671 if action.replace_newest {
6672 s.delete(s.newest_anchor().id);
6673 }
6674 s.insert_range(next_selected_range);
6675 });
6676 } else {
6677 select_prev_state.done = true;
6678 }
6679 }
6680
6681 self.select_prev_state = Some(select_prev_state);
6682 } else {
6683 let mut only_carets = true;
6684 let mut same_text_selected = true;
6685 let mut selected_text = None;
6686
6687 let mut selections_iter = selections.iter().peekable();
6688 while let Some(selection) = selections_iter.next() {
6689 if selection.start != selection.end {
6690 only_carets = false;
6691 }
6692
6693 if same_text_selected {
6694 if selected_text.is_none() {
6695 selected_text =
6696 Some(buffer.text_for_range(selection.range()).collect::<String>());
6697 }
6698
6699 if let Some(next_selection) = selections_iter.peek() {
6700 if next_selection.range().len() == selection.range().len() {
6701 let next_selected_text = buffer
6702 .text_for_range(next_selection.range())
6703 .collect::<String>();
6704 if Some(next_selected_text) != selected_text {
6705 same_text_selected = false;
6706 selected_text = None;
6707 }
6708 } else {
6709 same_text_selected = false;
6710 selected_text = None;
6711 }
6712 }
6713 }
6714 }
6715
6716 if only_carets {
6717 for selection in &mut selections {
6718 let word_range = movement::surrounding_word(
6719 &display_map,
6720 selection.start.to_display_point(&display_map),
6721 );
6722 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6723 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6724 selection.goal = SelectionGoal::None;
6725 selection.reversed = false;
6726 }
6727 if selections.len() == 1 {
6728 let selection = selections
6729 .last()
6730 .expect("ensured that there's only one selection");
6731 let query = buffer
6732 .text_for_range(selection.start..selection.end)
6733 .collect::<String>();
6734 let is_empty = query.is_empty();
6735 let select_state = SelectNextState {
6736 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6737 wordwise: true,
6738 done: is_empty,
6739 };
6740 self.select_prev_state = Some(select_state);
6741 } else {
6742 self.select_prev_state = None;
6743 }
6744
6745 self.unfold_ranges(
6746 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6747 false,
6748 true,
6749 cx,
6750 );
6751 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6752 s.select(selections);
6753 });
6754 } else if let Some(selected_text) = selected_text {
6755 self.select_prev_state = Some(SelectNextState {
6756 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6757 wordwise: false,
6758 done: false,
6759 });
6760 self.select_previous(action, cx)?;
6761 }
6762 }
6763 Ok(())
6764 }
6765
6766 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6767 let text_layout_details = &self.text_layout_details(cx);
6768 self.transact(cx, |this, cx| {
6769 let mut selections = this.selections.all::<Point>(cx);
6770 let mut edits = Vec::new();
6771 let mut selection_edit_ranges = Vec::new();
6772 let mut last_toggled_row = None;
6773 let snapshot = this.buffer.read(cx).read(cx);
6774 let empty_str: Arc<str> = "".into();
6775 let mut suffixes_inserted = Vec::new();
6776
6777 fn comment_prefix_range(
6778 snapshot: &MultiBufferSnapshot,
6779 row: u32,
6780 comment_prefix: &str,
6781 comment_prefix_whitespace: &str,
6782 ) -> Range<Point> {
6783 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6784
6785 let mut line_bytes = snapshot
6786 .bytes_in_range(start..snapshot.max_point())
6787 .flatten()
6788 .copied();
6789
6790 // If this line currently begins with the line comment prefix, then record
6791 // the range containing the prefix.
6792 if line_bytes
6793 .by_ref()
6794 .take(comment_prefix.len())
6795 .eq(comment_prefix.bytes())
6796 {
6797 // Include any whitespace that matches the comment prefix.
6798 let matching_whitespace_len = line_bytes
6799 .zip(comment_prefix_whitespace.bytes())
6800 .take_while(|(a, b)| a == b)
6801 .count() as u32;
6802 let end = Point::new(
6803 start.row,
6804 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6805 );
6806 start..end
6807 } else {
6808 start..start
6809 }
6810 }
6811
6812 fn comment_suffix_range(
6813 snapshot: &MultiBufferSnapshot,
6814 row: u32,
6815 comment_suffix: &str,
6816 comment_suffix_has_leading_space: bool,
6817 ) -> Range<Point> {
6818 let end = Point::new(row, snapshot.line_len(row));
6819 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6820
6821 let mut line_end_bytes = snapshot
6822 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6823 .flatten()
6824 .copied();
6825
6826 let leading_space_len = if suffix_start_column > 0
6827 && line_end_bytes.next() == Some(b' ')
6828 && comment_suffix_has_leading_space
6829 {
6830 1
6831 } else {
6832 0
6833 };
6834
6835 // If this line currently begins with the line comment prefix, then record
6836 // the range containing the prefix.
6837 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6838 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6839 start..end
6840 } else {
6841 end..end
6842 }
6843 }
6844
6845 // TODO: Handle selections that cross excerpts
6846 for selection in &mut selections {
6847 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6848 let language = if let Some(language) =
6849 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6850 {
6851 language
6852 } else {
6853 continue;
6854 };
6855
6856 selection_edit_ranges.clear();
6857
6858 // If multiple selections contain a given row, avoid processing that
6859 // row more than once.
6860 let mut start_row = selection.start.row;
6861 if last_toggled_row == Some(start_row) {
6862 start_row += 1;
6863 }
6864 let end_row =
6865 if selection.end.row > selection.start.row && selection.end.column == 0 {
6866 selection.end.row - 1
6867 } else {
6868 selection.end.row
6869 };
6870 last_toggled_row = Some(end_row);
6871
6872 if start_row > end_row {
6873 continue;
6874 }
6875
6876 // If the language has line comments, toggle those.
6877 if let Some(full_comment_prefix) = language
6878 .line_comment_prefixes()
6879 .and_then(|prefixes| prefixes.first())
6880 {
6881 // Split the comment prefix's trailing whitespace into a separate string,
6882 // as that portion won't be used for detecting if a line is a comment.
6883 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6884 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6885 let mut all_selection_lines_are_comments = true;
6886
6887 for row in start_row..=end_row {
6888 if start_row < end_row && snapshot.is_line_blank(row) {
6889 continue;
6890 }
6891
6892 let prefix_range = comment_prefix_range(
6893 snapshot.deref(),
6894 row,
6895 comment_prefix,
6896 comment_prefix_whitespace,
6897 );
6898 if prefix_range.is_empty() {
6899 all_selection_lines_are_comments = false;
6900 }
6901 selection_edit_ranges.push(prefix_range);
6902 }
6903
6904 if all_selection_lines_are_comments {
6905 edits.extend(
6906 selection_edit_ranges
6907 .iter()
6908 .cloned()
6909 .map(|range| (range, empty_str.clone())),
6910 );
6911 } else {
6912 let min_column = selection_edit_ranges
6913 .iter()
6914 .map(|r| r.start.column)
6915 .min()
6916 .unwrap_or(0);
6917 edits.extend(selection_edit_ranges.iter().map(|range| {
6918 let position = Point::new(range.start.row, min_column);
6919 (position..position, full_comment_prefix.clone())
6920 }));
6921 }
6922 } else if let Some((full_comment_prefix, comment_suffix)) =
6923 language.block_comment_delimiters()
6924 {
6925 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6926 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6927 let prefix_range = comment_prefix_range(
6928 snapshot.deref(),
6929 start_row,
6930 comment_prefix,
6931 comment_prefix_whitespace,
6932 );
6933 let suffix_range = comment_suffix_range(
6934 snapshot.deref(),
6935 end_row,
6936 comment_suffix.trim_start_matches(' '),
6937 comment_suffix.starts_with(' '),
6938 );
6939
6940 if prefix_range.is_empty() || suffix_range.is_empty() {
6941 edits.push((
6942 prefix_range.start..prefix_range.start,
6943 full_comment_prefix.clone(),
6944 ));
6945 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6946 suffixes_inserted.push((end_row, comment_suffix.len()));
6947 } else {
6948 edits.push((prefix_range, empty_str.clone()));
6949 edits.push((suffix_range, empty_str.clone()));
6950 }
6951 } else {
6952 continue;
6953 }
6954 }
6955
6956 drop(snapshot);
6957 this.buffer.update(cx, |buffer, cx| {
6958 buffer.edit(edits, None, cx);
6959 });
6960
6961 // Adjust selections so that they end before any comment suffixes that
6962 // were inserted.
6963 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6964 let mut selections = this.selections.all::<Point>(cx);
6965 let snapshot = this.buffer.read(cx).read(cx);
6966 for selection in &mut selections {
6967 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6968 match row.cmp(&selection.end.row) {
6969 Ordering::Less => {
6970 suffixes_inserted.next();
6971 continue;
6972 }
6973 Ordering::Greater => break,
6974 Ordering::Equal => {
6975 if selection.end.column == snapshot.line_len(row) {
6976 if selection.is_empty() {
6977 selection.start.column -= suffix_len as u32;
6978 }
6979 selection.end.column -= suffix_len as u32;
6980 }
6981 break;
6982 }
6983 }
6984 }
6985 }
6986
6987 drop(snapshot);
6988 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6989
6990 let selections = this.selections.all::<Point>(cx);
6991 let selections_on_single_row = selections.windows(2).all(|selections| {
6992 selections[0].start.row == selections[1].start.row
6993 && selections[0].end.row == selections[1].end.row
6994 && selections[0].start.row == selections[0].end.row
6995 });
6996 let selections_selecting = selections
6997 .iter()
6998 .any(|selection| selection.start != selection.end);
6999 let advance_downwards = action.advance_downwards
7000 && selections_on_single_row
7001 && !selections_selecting
7002 && this.mode != EditorMode::SingleLine;
7003
7004 if advance_downwards {
7005 let snapshot = this.buffer.read(cx).snapshot(cx);
7006
7007 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7008 s.move_cursors_with(|display_snapshot, display_point, _| {
7009 let mut point = display_point.to_point(display_snapshot);
7010 point.row += 1;
7011 point = snapshot.clip_point(point, Bias::Left);
7012 let display_point = point.to_display_point(display_snapshot);
7013 let goal = SelectionGoal::HorizontalPosition(
7014 display_snapshot
7015 .x_for_display_point(display_point, &text_layout_details)
7016 .into(),
7017 );
7018 (display_point, goal)
7019 })
7020 });
7021 }
7022 });
7023 }
7024
7025 pub fn select_larger_syntax_node(
7026 &mut self,
7027 _: &SelectLargerSyntaxNode,
7028 cx: &mut ViewContext<Self>,
7029 ) {
7030 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7031 let buffer = self.buffer.read(cx).snapshot(cx);
7032 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7033
7034 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7035 let mut selected_larger_node = false;
7036 let new_selections = old_selections
7037 .iter()
7038 .map(|selection| {
7039 let old_range = selection.start..selection.end;
7040 let mut new_range = old_range.clone();
7041 while let Some(containing_range) =
7042 buffer.range_for_syntax_ancestor(new_range.clone())
7043 {
7044 new_range = containing_range;
7045 if !display_map.intersects_fold(new_range.start)
7046 && !display_map.intersects_fold(new_range.end)
7047 {
7048 break;
7049 }
7050 }
7051
7052 selected_larger_node |= new_range != old_range;
7053 Selection {
7054 id: selection.id,
7055 start: new_range.start,
7056 end: new_range.end,
7057 goal: SelectionGoal::None,
7058 reversed: selection.reversed,
7059 }
7060 })
7061 .collect::<Vec<_>>();
7062
7063 if selected_larger_node {
7064 stack.push(old_selections);
7065 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7066 s.select(new_selections);
7067 });
7068 }
7069 self.select_larger_syntax_node_stack = stack;
7070 }
7071
7072 pub fn select_smaller_syntax_node(
7073 &mut self,
7074 _: &SelectSmallerSyntaxNode,
7075 cx: &mut ViewContext<Self>,
7076 ) {
7077 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7078 if let Some(selections) = stack.pop() {
7079 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7080 s.select(selections.to_vec());
7081 });
7082 }
7083 self.select_larger_syntax_node_stack = stack;
7084 }
7085
7086 pub fn move_to_enclosing_bracket(
7087 &mut self,
7088 _: &MoveToEnclosingBracket,
7089 cx: &mut ViewContext<Self>,
7090 ) {
7091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7092 s.move_offsets_with(|snapshot, selection| {
7093 let Some(enclosing_bracket_ranges) =
7094 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7095 else {
7096 return;
7097 };
7098
7099 let mut best_length = usize::MAX;
7100 let mut best_inside = false;
7101 let mut best_in_bracket_range = false;
7102 let mut best_destination = None;
7103 for (open, close) in enclosing_bracket_ranges {
7104 let close = close.to_inclusive();
7105 let length = close.end() - open.start;
7106 let inside = selection.start >= open.end && selection.end <= *close.start();
7107 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7108 || close.contains(&selection.head());
7109
7110 // If best is next to a bracket and current isn't, skip
7111 if !in_bracket_range && best_in_bracket_range {
7112 continue;
7113 }
7114
7115 // Prefer smaller lengths unless best is inside and current isn't
7116 if length > best_length && (best_inside || !inside) {
7117 continue;
7118 }
7119
7120 best_length = length;
7121 best_inside = inside;
7122 best_in_bracket_range = in_bracket_range;
7123 best_destination = Some(
7124 if close.contains(&selection.start) && close.contains(&selection.end) {
7125 if inside {
7126 open.end
7127 } else {
7128 open.start
7129 }
7130 } else {
7131 if inside {
7132 *close.start()
7133 } else {
7134 *close.end()
7135 }
7136 },
7137 );
7138 }
7139
7140 if let Some(destination) = best_destination {
7141 selection.collapse_to(destination, SelectionGoal::None);
7142 }
7143 })
7144 });
7145 }
7146
7147 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7148 self.end_selection(cx);
7149 self.selection_history.mode = SelectionHistoryMode::Undoing;
7150 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7151 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7152 self.select_next_state = entry.select_next_state;
7153 self.select_prev_state = entry.select_prev_state;
7154 self.add_selections_state = entry.add_selections_state;
7155 self.request_autoscroll(Autoscroll::newest(), cx);
7156 }
7157 self.selection_history.mode = SelectionHistoryMode::Normal;
7158 }
7159
7160 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7161 self.end_selection(cx);
7162 self.selection_history.mode = SelectionHistoryMode::Redoing;
7163 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7164 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7165 self.select_next_state = entry.select_next_state;
7166 self.select_prev_state = entry.select_prev_state;
7167 self.add_selections_state = entry.add_selections_state;
7168 self.request_autoscroll(Autoscroll::newest(), cx);
7169 }
7170 self.selection_history.mode = SelectionHistoryMode::Normal;
7171 }
7172
7173 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7174 self.go_to_diagnostic_impl(Direction::Next, cx)
7175 }
7176
7177 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7178 self.go_to_diagnostic_impl(Direction::Prev, cx)
7179 }
7180
7181 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7182 let buffer = self.buffer.read(cx).snapshot(cx);
7183 let selection = self.selections.newest::<usize>(cx);
7184
7185 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7186 if direction == Direction::Next {
7187 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7188 let (group_id, jump_to) = popover.activation_info();
7189 if self.activate_diagnostics(group_id, cx) {
7190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7191 let mut new_selection = s.newest_anchor().clone();
7192 new_selection.collapse_to(jump_to, SelectionGoal::None);
7193 s.select_anchors(vec![new_selection.clone()]);
7194 });
7195 }
7196 return;
7197 }
7198 }
7199
7200 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7201 active_diagnostics
7202 .primary_range
7203 .to_offset(&buffer)
7204 .to_inclusive()
7205 });
7206 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7207 if active_primary_range.contains(&selection.head()) {
7208 *active_primary_range.end()
7209 } else {
7210 selection.head()
7211 }
7212 } else {
7213 selection.head()
7214 };
7215
7216 loop {
7217 let mut diagnostics = if direction == Direction::Prev {
7218 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7219 } else {
7220 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7221 };
7222 let group = diagnostics.find_map(|entry| {
7223 if entry.diagnostic.is_primary
7224 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7225 && !entry.range.is_empty()
7226 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7227 && !entry.range.contains(&search_start)
7228 {
7229 Some((entry.range, entry.diagnostic.group_id))
7230 } else {
7231 None
7232 }
7233 });
7234
7235 if let Some((primary_range, group_id)) = group {
7236 if self.activate_diagnostics(group_id, cx) {
7237 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7238 s.select(vec![Selection {
7239 id: selection.id,
7240 start: primary_range.start,
7241 end: primary_range.start,
7242 reversed: false,
7243 goal: SelectionGoal::None,
7244 }]);
7245 });
7246 }
7247 break;
7248 } else {
7249 // Cycle around to the start of the buffer, potentially moving back to the start of
7250 // the currently active diagnostic.
7251 active_primary_range.take();
7252 if direction == Direction::Prev {
7253 if search_start == buffer.len() {
7254 break;
7255 } else {
7256 search_start = buffer.len();
7257 }
7258 } else if search_start == 0 {
7259 break;
7260 } else {
7261 search_start = 0;
7262 }
7263 }
7264 }
7265 }
7266
7267 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7268 let snapshot = self
7269 .display_map
7270 .update(cx, |display_map, cx| display_map.snapshot(cx));
7271 let selection = self.selections.newest::<Point>(cx);
7272
7273 if !self.seek_in_direction(
7274 &snapshot,
7275 selection.head(),
7276 false,
7277 snapshot
7278 .buffer_snapshot
7279 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7280 cx,
7281 ) {
7282 let wrapped_point = Point::zero();
7283 self.seek_in_direction(
7284 &snapshot,
7285 wrapped_point,
7286 true,
7287 snapshot
7288 .buffer_snapshot
7289 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7290 cx,
7291 );
7292 }
7293 }
7294
7295 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7296 let snapshot = self
7297 .display_map
7298 .update(cx, |display_map, cx| display_map.snapshot(cx));
7299 let selection = self.selections.newest::<Point>(cx);
7300
7301 if !self.seek_in_direction(
7302 &snapshot,
7303 selection.head(),
7304 false,
7305 snapshot
7306 .buffer_snapshot
7307 .git_diff_hunks_in_range_rev(0..selection.head().row),
7308 cx,
7309 ) {
7310 let wrapped_point = snapshot.buffer_snapshot.max_point();
7311 self.seek_in_direction(
7312 &snapshot,
7313 wrapped_point,
7314 true,
7315 snapshot
7316 .buffer_snapshot
7317 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7318 cx,
7319 );
7320 }
7321 }
7322
7323 fn seek_in_direction(
7324 &mut self,
7325 snapshot: &DisplaySnapshot,
7326 initial_point: Point,
7327 is_wrapped: bool,
7328 hunks: impl Iterator<Item = DiffHunk<u32>>,
7329 cx: &mut ViewContext<Editor>,
7330 ) -> bool {
7331 let display_point = initial_point.to_display_point(snapshot);
7332 let mut hunks = hunks
7333 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7334 .filter(|hunk| {
7335 if is_wrapped {
7336 true
7337 } else {
7338 !hunk.contains_display_row(display_point.row())
7339 }
7340 })
7341 .dedup();
7342
7343 if let Some(hunk) = hunks.next() {
7344 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7345 let row = hunk.start_display_row();
7346 let point = DisplayPoint::new(row, 0);
7347 s.select_display_ranges([point..point]);
7348 });
7349
7350 true
7351 } else {
7352 false
7353 }
7354 }
7355
7356 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7357 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7358 }
7359
7360 pub fn go_to_implementation(&mut self, _: &GoToImplementation, cx: &mut ViewContext<Self>) {
7361 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx);
7362 }
7363
7364 pub fn go_to_implementation_split(
7365 &mut self,
7366 _: &GoToImplementationSplit,
7367 cx: &mut ViewContext<Self>,
7368 ) {
7369 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx);
7370 }
7371
7372 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7373 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7374 }
7375
7376 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7377 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7378 }
7379
7380 pub fn go_to_type_definition_split(
7381 &mut self,
7382 _: &GoToTypeDefinitionSplit,
7383 cx: &mut ViewContext<Self>,
7384 ) {
7385 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7386 }
7387
7388 fn go_to_definition_of_kind(
7389 &mut self,
7390 kind: GotoDefinitionKind,
7391 split: bool,
7392 cx: &mut ViewContext<Self>,
7393 ) {
7394 let Some(workspace) = self.workspace() else {
7395 return;
7396 };
7397 let buffer = self.buffer.read(cx);
7398 let head = self.selections.newest::<usize>(cx).head();
7399 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7400 text_anchor
7401 } else {
7402 return;
7403 };
7404
7405 let project = workspace.read(cx).project().clone();
7406 let definitions = project.update(cx, |project, cx| match kind {
7407 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7408 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7409 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7410 });
7411
7412 cx.spawn(|editor, mut cx| async move {
7413 let definitions = definitions.await?;
7414 editor.update(&mut cx, |editor, cx| {
7415 editor.navigate_to_hover_links(
7416 Some(kind),
7417 definitions.into_iter().map(HoverLink::Text).collect(),
7418 split,
7419 cx,
7420 );
7421 })?;
7422 Ok::<(), anyhow::Error>(())
7423 })
7424 .detach_and_log_err(cx);
7425 }
7426
7427 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7428 let position = self.selections.newest_anchor().head();
7429 let Some((buffer, buffer_position)) = self
7430 .buffer
7431 .read(cx)
7432 .text_anchor_for_position(position.clone(), cx)
7433 else {
7434 return;
7435 };
7436
7437 cx.spawn(|editor, mut cx| async move {
7438 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7439 editor.update(&mut cx, |_, cx| {
7440 cx.open_url(&url);
7441 })
7442 } else {
7443 Ok(())
7444 }
7445 })
7446 .detach();
7447 }
7448
7449 pub(crate) fn navigate_to_hover_links(
7450 &mut self,
7451 kind: Option<GotoDefinitionKind>,
7452 mut definitions: Vec<HoverLink>,
7453 split: bool,
7454 cx: &mut ViewContext<Editor>,
7455 ) {
7456 // If there is one definition, just open it directly
7457 if definitions.len() == 1 {
7458 let definition = definitions.pop().unwrap();
7459 let target_task = match definition {
7460 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7461 HoverLink::InlayHint(lsp_location, server_id) => {
7462 self.compute_target_location(lsp_location, server_id, cx)
7463 }
7464 HoverLink::Url(url) => {
7465 cx.open_url(&url);
7466 Task::ready(Ok(None))
7467 }
7468 };
7469 cx.spawn(|editor, mut cx| async move {
7470 let target = target_task.await.context("target resolution task")?;
7471 if let Some(target) = target {
7472 editor.update(&mut cx, |editor, cx| {
7473 let Some(workspace) = editor.workspace() else {
7474 return;
7475 };
7476 let pane = workspace.read(cx).active_pane().clone();
7477
7478 let range = target.range.to_offset(target.buffer.read(cx));
7479 let range = editor.range_for_match(&range);
7480 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7481 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7482 s.select_ranges([range]);
7483 });
7484 } else {
7485 cx.window_context().defer(move |cx| {
7486 let target_editor: View<Self> =
7487 workspace.update(cx, |workspace, cx| {
7488 if split {
7489 workspace.split_project_item(target.buffer.clone(), cx)
7490 } else {
7491 workspace.open_project_item(target.buffer.clone(), cx)
7492 }
7493 });
7494 target_editor.update(cx, |target_editor, cx| {
7495 // When selecting a definition in a different buffer, disable the nav history
7496 // to avoid creating a history entry at the previous cursor location.
7497 pane.update(cx, |pane, _| pane.disable_history());
7498 target_editor.change_selections(
7499 Some(Autoscroll::fit()),
7500 cx,
7501 |s| {
7502 s.select_ranges([range]);
7503 },
7504 );
7505 pane.update(cx, |pane, _| pane.enable_history());
7506 });
7507 });
7508 }
7509 })
7510 } else {
7511 Ok(())
7512 }
7513 })
7514 .detach_and_log_err(cx);
7515 } else if !definitions.is_empty() {
7516 let replica_id = self.replica_id(cx);
7517 cx.spawn(|editor, mut cx| async move {
7518 let (title, location_tasks, workspace) = editor
7519 .update(&mut cx, |editor, cx| {
7520 let tab_kind = match kind {
7521 Some(GotoDefinitionKind::Implementation) => "Implementations",
7522 _ => "Definitions",
7523 };
7524 let title = definitions
7525 .iter()
7526 .find_map(|definition| match definition {
7527 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7528 let buffer = origin.buffer.read(cx);
7529 format!(
7530 "{} for {}",
7531 tab_kind,
7532 buffer
7533 .text_for_range(origin.range.clone())
7534 .collect::<String>()
7535 )
7536 }),
7537 HoverLink::InlayHint(_, _) => None,
7538 HoverLink::Url(_) => None,
7539 })
7540 .unwrap_or(tab_kind.to_string());
7541 let location_tasks = definitions
7542 .into_iter()
7543 .map(|definition| match definition {
7544 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7545 HoverLink::InlayHint(lsp_location, server_id) => {
7546 editor.compute_target_location(lsp_location, server_id, cx)
7547 }
7548 HoverLink::Url(_) => Task::ready(Ok(None)),
7549 })
7550 .collect::<Vec<_>>();
7551 (title, location_tasks, editor.workspace().clone())
7552 })
7553 .context("location tasks preparation")?;
7554
7555 let locations = futures::future::join_all(location_tasks)
7556 .await
7557 .into_iter()
7558 .filter_map(|location| location.transpose())
7559 .collect::<Result<_>>()
7560 .context("location tasks")?;
7561
7562 let Some(workspace) = workspace else {
7563 return Ok(());
7564 };
7565 workspace
7566 .update(&mut cx, |workspace, cx| {
7567 Self::open_locations_in_multibuffer(
7568 workspace, locations, replica_id, title, split, cx,
7569 )
7570 })
7571 .ok();
7572
7573 anyhow::Ok(())
7574 })
7575 .detach_and_log_err(cx);
7576 }
7577 }
7578
7579 fn compute_target_location(
7580 &self,
7581 lsp_location: lsp::Location,
7582 server_id: LanguageServerId,
7583 cx: &mut ViewContext<Editor>,
7584 ) -> Task<anyhow::Result<Option<Location>>> {
7585 let Some(project) = self.project.clone() else {
7586 return Task::Ready(Some(Ok(None)));
7587 };
7588
7589 cx.spawn(move |editor, mut cx| async move {
7590 let location_task = editor.update(&mut cx, |editor, cx| {
7591 project.update(cx, |project, cx| {
7592 let language_server_name =
7593 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7594 project
7595 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7596 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7597 });
7598 language_server_name.map(|language_server_name| {
7599 project.open_local_buffer_via_lsp(
7600 lsp_location.uri.clone(),
7601 server_id,
7602 language_server_name,
7603 cx,
7604 )
7605 })
7606 })
7607 })?;
7608 let location = match location_task {
7609 Some(task) => Some({
7610 let target_buffer_handle = task.await.context("open local buffer")?;
7611 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7612 let target_start = target_buffer
7613 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7614 let target_end = target_buffer
7615 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7616 target_buffer.anchor_after(target_start)
7617 ..target_buffer.anchor_before(target_end)
7618 })?;
7619 Location {
7620 buffer: target_buffer_handle,
7621 range,
7622 }
7623 }),
7624 None => None,
7625 };
7626 Ok(location)
7627 })
7628 }
7629
7630 pub fn find_all_references(
7631 &mut self,
7632 _: &FindAllReferences,
7633 cx: &mut ViewContext<Self>,
7634 ) -> Option<Task<Result<()>>> {
7635 let buffer = self.buffer.read(cx);
7636 let head = self.selections.newest::<usize>(cx).head();
7637 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7638 let replica_id = self.replica_id(cx);
7639
7640 let workspace = self.workspace()?;
7641 let project = workspace.read(cx).project().clone();
7642 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7643 Some(cx.spawn(|_, mut cx| async move {
7644 let locations = references.await?;
7645 if locations.is_empty() {
7646 return Ok(());
7647 }
7648
7649 workspace.update(&mut cx, |workspace, cx| {
7650 let title = locations
7651 .first()
7652 .as_ref()
7653 .map(|location| {
7654 let buffer = location.buffer.read(cx);
7655 format!(
7656 "References to `{}`",
7657 buffer
7658 .text_for_range(location.range.clone())
7659 .collect::<String>()
7660 )
7661 })
7662 .unwrap();
7663 Self::open_locations_in_multibuffer(
7664 workspace, locations, replica_id, title, false, cx,
7665 );
7666 })?;
7667
7668 Ok(())
7669 }))
7670 }
7671
7672 /// Opens a multibuffer with the given project locations in it
7673 pub fn open_locations_in_multibuffer(
7674 workspace: &mut Workspace,
7675 mut locations: Vec<Location>,
7676 replica_id: ReplicaId,
7677 title: String,
7678 split: bool,
7679 cx: &mut ViewContext<Workspace>,
7680 ) {
7681 // If there are multiple definitions, open them in a multibuffer
7682 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7683 let mut locations = locations.into_iter().peekable();
7684 let mut ranges_to_highlight = Vec::new();
7685 let capability = workspace.project().read(cx).capability();
7686
7687 let excerpt_buffer = cx.new_model(|cx| {
7688 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7689 while let Some(location) = locations.next() {
7690 let buffer = location.buffer.read(cx);
7691 let mut ranges_for_buffer = Vec::new();
7692 let range = location.range.to_offset(buffer);
7693 ranges_for_buffer.push(range.clone());
7694
7695 while let Some(next_location) = locations.peek() {
7696 if next_location.buffer == location.buffer {
7697 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7698 locations.next();
7699 } else {
7700 break;
7701 }
7702 }
7703
7704 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7705 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7706 location.buffer.clone(),
7707 ranges_for_buffer,
7708 1,
7709 cx,
7710 ))
7711 }
7712
7713 multibuffer.with_title(title)
7714 });
7715
7716 let editor = cx.new_view(|cx| {
7717 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7718 });
7719 editor.update(cx, |editor, cx| {
7720 editor.highlight_background::<Self>(
7721 ranges_to_highlight,
7722 |theme| theme.editor_highlighted_line_background,
7723 cx,
7724 );
7725 });
7726 if split {
7727 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7728 } else {
7729 workspace.add_item(Box::new(editor), cx);
7730 }
7731 }
7732
7733 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7734 use language::ToOffset as _;
7735
7736 let project = self.project.clone()?;
7737 let selection = self.selections.newest_anchor().clone();
7738 let (cursor_buffer, cursor_buffer_position) = self
7739 .buffer
7740 .read(cx)
7741 .text_anchor_for_position(selection.head(), cx)?;
7742 let (tail_buffer, _) = self
7743 .buffer
7744 .read(cx)
7745 .text_anchor_for_position(selection.tail(), cx)?;
7746 if tail_buffer != cursor_buffer {
7747 return None;
7748 }
7749
7750 let snapshot = cursor_buffer.read(cx).snapshot();
7751 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7752 let prepare_rename = project.update(cx, |project, cx| {
7753 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
7754 });
7755 drop(snapshot);
7756
7757 Some(cx.spawn(|this, mut cx| async move {
7758 let rename_range = if let Some(range) = prepare_rename.await? {
7759 Some(range)
7760 } else {
7761 this.update(&mut cx, |this, cx| {
7762 let buffer = this.buffer.read(cx).snapshot(cx);
7763 let mut buffer_highlights = this
7764 .document_highlights_for_position(selection.head(), &buffer)
7765 .filter(|highlight| {
7766 highlight.start.excerpt_id == selection.head().excerpt_id
7767 && highlight.end.excerpt_id == selection.head().excerpt_id
7768 });
7769 buffer_highlights
7770 .next()
7771 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7772 })?
7773 };
7774 if let Some(rename_range) = rename_range {
7775 this.update(&mut cx, |this, cx| {
7776 let snapshot = cursor_buffer.read(cx).snapshot();
7777 let rename_buffer_range = rename_range.to_offset(&snapshot);
7778 let cursor_offset_in_rename_range =
7779 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7780
7781 this.take_rename(false, cx);
7782 let buffer = this.buffer.read(cx).read(cx);
7783 let cursor_offset = selection.head().to_offset(&buffer);
7784 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7785 let rename_end = rename_start + rename_buffer_range.len();
7786 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7787 let mut old_highlight_id = None;
7788 let old_name: Arc<str> = buffer
7789 .chunks(rename_start..rename_end, true)
7790 .map(|chunk| {
7791 if old_highlight_id.is_none() {
7792 old_highlight_id = chunk.syntax_highlight_id;
7793 }
7794 chunk.text
7795 })
7796 .collect::<String>()
7797 .into();
7798
7799 drop(buffer);
7800
7801 // Position the selection in the rename editor so that it matches the current selection.
7802 this.show_local_selections = false;
7803 let rename_editor = cx.new_view(|cx| {
7804 let mut editor = Editor::single_line(cx);
7805 editor.buffer.update(cx, |buffer, cx| {
7806 buffer.edit([(0..0, old_name.clone())], None, cx)
7807 });
7808 editor.select_all(&SelectAll, cx);
7809 editor
7810 });
7811
7812 let ranges = this
7813 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7814 .into_iter()
7815 .flat_map(|(_, ranges)| ranges.into_iter())
7816 .chain(
7817 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7818 .into_iter()
7819 .flat_map(|(_, ranges)| ranges.into_iter()),
7820 )
7821 .collect();
7822
7823 this.highlight_text::<Rename>(
7824 ranges,
7825 HighlightStyle {
7826 fade_out: Some(0.6),
7827 ..Default::default()
7828 },
7829 cx,
7830 );
7831 let rename_focus_handle = rename_editor.focus_handle(cx);
7832 cx.focus(&rename_focus_handle);
7833 let block_id = this.insert_blocks(
7834 [BlockProperties {
7835 style: BlockStyle::Flex,
7836 position: range.start.clone(),
7837 height: 1,
7838 render: Arc::new({
7839 let rename_editor = rename_editor.clone();
7840 move |cx: &mut BlockContext| {
7841 let mut text_style = cx.editor_style.text.clone();
7842 if let Some(highlight_style) = old_highlight_id
7843 .and_then(|h| h.style(&cx.editor_style.syntax))
7844 {
7845 text_style = text_style.highlight(highlight_style);
7846 }
7847 div()
7848 .pl(cx.anchor_x)
7849 .child(EditorElement::new(
7850 &rename_editor,
7851 EditorStyle {
7852 background: cx.theme().system().transparent,
7853 local_player: cx.editor_style.local_player,
7854 text: text_style,
7855 scrollbar_width: cx.editor_style.scrollbar_width,
7856 syntax: cx.editor_style.syntax.clone(),
7857 status: cx.editor_style.status.clone(),
7858 inlays_style: HighlightStyle {
7859 color: Some(cx.theme().status().hint),
7860 font_weight: Some(FontWeight::BOLD),
7861 ..HighlightStyle::default()
7862 },
7863 suggestions_style: HighlightStyle {
7864 color: Some(cx.theme().status().predictive),
7865 ..HighlightStyle::default()
7866 },
7867 },
7868 ))
7869 .into_any_element()
7870 }
7871 }),
7872 disposition: BlockDisposition::Below,
7873 }],
7874 Some(Autoscroll::fit()),
7875 cx,
7876 )[0];
7877 this.pending_rename = Some(RenameState {
7878 range,
7879 old_name,
7880 editor: rename_editor,
7881 block_id,
7882 });
7883 })?;
7884 }
7885
7886 Ok(())
7887 }))
7888 }
7889
7890 pub fn confirm_rename(
7891 &mut self,
7892 _: &ConfirmRename,
7893 cx: &mut ViewContext<Self>,
7894 ) -> Option<Task<Result<()>>> {
7895 let rename = self.take_rename(false, cx)?;
7896 let workspace = self.workspace()?;
7897 let (start_buffer, start) = self
7898 .buffer
7899 .read(cx)
7900 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7901 let (end_buffer, end) = self
7902 .buffer
7903 .read(cx)
7904 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7905 if start_buffer != end_buffer {
7906 return None;
7907 }
7908
7909 let buffer = start_buffer;
7910 let range = start..end;
7911 let old_name = rename.old_name;
7912 let new_name = rename.editor.read(cx).text(cx);
7913
7914 let rename = workspace
7915 .read(cx)
7916 .project()
7917 .clone()
7918 .update(cx, |project, cx| {
7919 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7920 });
7921 let workspace = workspace.downgrade();
7922
7923 Some(cx.spawn(|editor, mut cx| async move {
7924 let project_transaction = rename.await?;
7925 Self::open_project_transaction(
7926 &editor,
7927 workspace,
7928 project_transaction,
7929 format!("Rename: {} → {}", old_name, new_name),
7930 cx.clone(),
7931 )
7932 .await?;
7933
7934 editor.update(&mut cx, |editor, cx| {
7935 editor.refresh_document_highlights(cx);
7936 })?;
7937 Ok(())
7938 }))
7939 }
7940
7941 fn take_rename(
7942 &mut self,
7943 moving_cursor: bool,
7944 cx: &mut ViewContext<Self>,
7945 ) -> Option<RenameState> {
7946 let rename = self.pending_rename.take()?;
7947 if rename.editor.focus_handle(cx).is_focused(cx) {
7948 cx.focus(&self.focus_handle);
7949 }
7950
7951 self.remove_blocks(
7952 [rename.block_id].into_iter().collect(),
7953 Some(Autoscroll::fit()),
7954 cx,
7955 );
7956 self.clear_highlights::<Rename>(cx);
7957 self.show_local_selections = true;
7958
7959 if moving_cursor {
7960 let rename_editor = rename.editor.read(cx);
7961 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7962
7963 // Update the selection to match the position of the selection inside
7964 // the rename editor.
7965 let snapshot = self.buffer.read(cx).read(cx);
7966 let rename_range = rename.range.to_offset(&snapshot);
7967 let cursor_in_editor = snapshot
7968 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7969 .min(rename_range.end);
7970 drop(snapshot);
7971
7972 self.change_selections(None, cx, |s| {
7973 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7974 });
7975 } else {
7976 self.refresh_document_highlights(cx);
7977 }
7978
7979 Some(rename)
7980 }
7981
7982 pub fn pending_rename(&self) -> Option<&RenameState> {
7983 self.pending_rename.as_ref()
7984 }
7985
7986 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7987 let project = match &self.project {
7988 Some(project) => project.clone(),
7989 None => return None,
7990 };
7991
7992 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7993 }
7994
7995 fn perform_format(
7996 &mut self,
7997 project: Model<Project>,
7998 trigger: FormatTrigger,
7999 cx: &mut ViewContext<Self>,
8000 ) -> Task<Result<()>> {
8001 let buffer = self.buffer().clone();
8002 let buffers = buffer.read(cx).all_buffers();
8003
8004 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8005 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8006
8007 cx.spawn(|_, mut cx| async move {
8008 let transaction = futures::select_biased! {
8009 _ = timeout => {
8010 log::warn!("timed out waiting for formatting");
8011 None
8012 }
8013 transaction = format.log_err().fuse() => transaction,
8014 };
8015
8016 buffer
8017 .update(&mut cx, |buffer, cx| {
8018 if let Some(transaction) = transaction {
8019 if !buffer.is_singleton() {
8020 buffer.push_transaction(&transaction.0, cx);
8021 }
8022 }
8023
8024 cx.notify();
8025 })
8026 .ok();
8027
8028 Ok(())
8029 })
8030 }
8031
8032 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8033 if let Some(project) = self.project.clone() {
8034 self.buffer.update(cx, |multi_buffer, cx| {
8035 project.update(cx, |project, cx| {
8036 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8037 });
8038 })
8039 }
8040 }
8041
8042 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8043 cx.show_character_palette();
8044 }
8045
8046 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8047 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8048 let buffer = self.buffer.read(cx).snapshot(cx);
8049 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8050 let is_valid = buffer
8051 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8052 .any(|entry| {
8053 entry.diagnostic.is_primary
8054 && !entry.range.is_empty()
8055 && entry.range.start == primary_range_start
8056 && entry.diagnostic.message == active_diagnostics.primary_message
8057 });
8058
8059 if is_valid != active_diagnostics.is_valid {
8060 active_diagnostics.is_valid = is_valid;
8061 let mut new_styles = HashMap::default();
8062 for (block_id, diagnostic) in &active_diagnostics.blocks {
8063 new_styles.insert(
8064 *block_id,
8065 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8066 );
8067 }
8068 self.display_map
8069 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8070 }
8071 }
8072 }
8073
8074 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8075 self.dismiss_diagnostics(cx);
8076 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8077 let buffer = self.buffer.read(cx).snapshot(cx);
8078
8079 let mut primary_range = None;
8080 let mut primary_message = None;
8081 let mut group_end = Point::zero();
8082 let diagnostic_group = buffer
8083 .diagnostic_group::<Point>(group_id)
8084 .map(|entry| {
8085 if entry.range.end > group_end {
8086 group_end = entry.range.end;
8087 }
8088 if entry.diagnostic.is_primary {
8089 primary_range = Some(entry.range.clone());
8090 primary_message = Some(entry.diagnostic.message.clone());
8091 }
8092 entry
8093 })
8094 .collect::<Vec<_>>();
8095 let primary_range = primary_range?;
8096 let primary_message = primary_message?;
8097 let primary_range =
8098 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8099
8100 let blocks = display_map
8101 .insert_blocks(
8102 diagnostic_group.iter().map(|entry| {
8103 let diagnostic = entry.diagnostic.clone();
8104 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8105 BlockProperties {
8106 style: BlockStyle::Fixed,
8107 position: buffer.anchor_after(entry.range.start),
8108 height: message_height,
8109 render: diagnostic_block_renderer(diagnostic, true),
8110 disposition: BlockDisposition::Below,
8111 }
8112 }),
8113 cx,
8114 )
8115 .into_iter()
8116 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8117 .collect();
8118
8119 Some(ActiveDiagnosticGroup {
8120 primary_range,
8121 primary_message,
8122 blocks,
8123 is_valid: true,
8124 })
8125 });
8126 self.active_diagnostics.is_some()
8127 }
8128
8129 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8130 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8131 self.display_map.update(cx, |display_map, cx| {
8132 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8133 });
8134 cx.notify();
8135 }
8136 }
8137
8138 pub fn set_selections_from_remote(
8139 &mut self,
8140 selections: Vec<Selection<Anchor>>,
8141 pending_selection: Option<Selection<Anchor>>,
8142 cx: &mut ViewContext<Self>,
8143 ) {
8144 let old_cursor_position = self.selections.newest_anchor().head();
8145 self.selections.change_with(cx, |s| {
8146 s.select_anchors(selections);
8147 if let Some(pending_selection) = pending_selection {
8148 s.set_pending(pending_selection, SelectMode::Character);
8149 } else {
8150 s.clear_pending();
8151 }
8152 });
8153 self.selections_did_change(false, &old_cursor_position, cx);
8154 }
8155
8156 fn push_to_selection_history(&mut self) {
8157 self.selection_history.push(SelectionHistoryEntry {
8158 selections: self.selections.disjoint_anchors(),
8159 select_next_state: self.select_next_state.clone(),
8160 select_prev_state: self.select_prev_state.clone(),
8161 add_selections_state: self.add_selections_state.clone(),
8162 });
8163 }
8164
8165 pub fn transact(
8166 &mut self,
8167 cx: &mut ViewContext<Self>,
8168 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8169 ) -> Option<TransactionId> {
8170 self.start_transaction_at(Instant::now(), cx);
8171 update(self, cx);
8172 self.end_transaction_at(Instant::now(), cx)
8173 }
8174
8175 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8176 self.end_selection(cx);
8177 if let Some(tx_id) = self
8178 .buffer
8179 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8180 {
8181 self.selection_history
8182 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8183 }
8184 }
8185
8186 fn end_transaction_at(
8187 &mut self,
8188 now: Instant,
8189 cx: &mut ViewContext<Self>,
8190 ) -> Option<TransactionId> {
8191 if let Some(tx_id) = self
8192 .buffer
8193 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8194 {
8195 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8196 *end_selections = Some(self.selections.disjoint_anchors());
8197 } else {
8198 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8199 }
8200
8201 cx.emit(EditorEvent::Edited);
8202 Some(tx_id)
8203 } else {
8204 None
8205 }
8206 }
8207
8208 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8209 let mut fold_ranges = Vec::new();
8210
8211 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8212
8213 let selections = self.selections.all_adjusted(cx);
8214 for selection in selections {
8215 let range = selection.range().sorted();
8216 let buffer_start_row = range.start.row;
8217
8218 for row in (0..=range.end.row).rev() {
8219 let fold_range = display_map.foldable_range(row);
8220
8221 if let Some(fold_range) = fold_range {
8222 if fold_range.end.row >= buffer_start_row {
8223 fold_ranges.push(fold_range);
8224 if row <= range.start.row {
8225 break;
8226 }
8227 }
8228 }
8229 }
8230 }
8231
8232 self.fold_ranges(fold_ranges, true, cx);
8233 }
8234
8235 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8236 let buffer_row = fold_at.buffer_row;
8237 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8238
8239 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8240 let autoscroll = self
8241 .selections
8242 .all::<Point>(cx)
8243 .iter()
8244 .any(|selection| fold_range.overlaps(&selection.range()));
8245
8246 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8247 }
8248 }
8249
8250 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8251 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8252 let buffer = &display_map.buffer_snapshot;
8253 let selections = self.selections.all::<Point>(cx);
8254 let ranges = selections
8255 .iter()
8256 .map(|s| {
8257 let range = s.display_range(&display_map).sorted();
8258 let mut start = range.start.to_point(&display_map);
8259 let mut end = range.end.to_point(&display_map);
8260 start.column = 0;
8261 end.column = buffer.line_len(end.row);
8262 start..end
8263 })
8264 .collect::<Vec<_>>();
8265
8266 self.unfold_ranges(ranges, true, true, cx);
8267 }
8268
8269 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8270 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8271
8272 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8273 ..Point::new(
8274 unfold_at.buffer_row,
8275 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8276 );
8277
8278 let autoscroll = self
8279 .selections
8280 .all::<Point>(cx)
8281 .iter()
8282 .any(|selection| selection.range().overlaps(&intersection_range));
8283
8284 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8285 }
8286
8287 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8288 let selections = self.selections.all::<Point>(cx);
8289 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8290 let line_mode = self.selections.line_mode;
8291 let ranges = selections.into_iter().map(|s| {
8292 if line_mode {
8293 let start = Point::new(s.start.row, 0);
8294 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8295 start..end
8296 } else {
8297 s.start..s.end
8298 }
8299 });
8300 self.fold_ranges(ranges, true, cx);
8301 }
8302
8303 pub fn fold_ranges<T: ToOffset + Clone>(
8304 &mut self,
8305 ranges: impl IntoIterator<Item = Range<T>>,
8306 auto_scroll: bool,
8307 cx: &mut ViewContext<Self>,
8308 ) {
8309 let mut ranges = ranges.into_iter().peekable();
8310 if ranges.peek().is_some() {
8311 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8312
8313 if auto_scroll {
8314 self.request_autoscroll(Autoscroll::fit(), cx);
8315 }
8316
8317 cx.notify();
8318 }
8319 }
8320
8321 pub fn unfold_ranges<T: ToOffset + Clone>(
8322 &mut self,
8323 ranges: impl IntoIterator<Item = Range<T>>,
8324 inclusive: bool,
8325 auto_scroll: bool,
8326 cx: &mut ViewContext<Self>,
8327 ) {
8328 let mut ranges = ranges.into_iter().peekable();
8329 if ranges.peek().is_some() {
8330 self.display_map
8331 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8332 if auto_scroll {
8333 self.request_autoscroll(Autoscroll::fit(), cx);
8334 }
8335
8336 cx.notify();
8337 }
8338 }
8339
8340 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8341 if hovered != self.gutter_hovered {
8342 self.gutter_hovered = hovered;
8343 cx.notify();
8344 }
8345 }
8346
8347 pub fn insert_blocks(
8348 &mut self,
8349 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8350 autoscroll: Option<Autoscroll>,
8351 cx: &mut ViewContext<Self>,
8352 ) -> Vec<BlockId> {
8353 let blocks = self
8354 .display_map
8355 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8356 if let Some(autoscroll) = autoscroll {
8357 self.request_autoscroll(autoscroll, cx);
8358 }
8359 blocks
8360 }
8361
8362 pub fn replace_blocks(
8363 &mut self,
8364 blocks: HashMap<BlockId, RenderBlock>,
8365 autoscroll: Option<Autoscroll>,
8366 cx: &mut ViewContext<Self>,
8367 ) {
8368 self.display_map
8369 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8370 if let Some(autoscroll) = autoscroll {
8371 self.request_autoscroll(autoscroll, cx);
8372 }
8373 }
8374
8375 pub fn remove_blocks(
8376 &mut self,
8377 block_ids: HashSet<BlockId>,
8378 autoscroll: Option<Autoscroll>,
8379 cx: &mut ViewContext<Self>,
8380 ) {
8381 self.display_map.update(cx, |display_map, cx| {
8382 display_map.remove_blocks(block_ids, cx)
8383 });
8384 if let Some(autoscroll) = autoscroll {
8385 self.request_autoscroll(autoscroll, cx);
8386 }
8387 }
8388
8389 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8390 self.display_map
8391 .update(cx, |map, cx| map.snapshot(cx))
8392 .longest_row()
8393 }
8394
8395 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8396 self.display_map
8397 .update(cx, |map, cx| map.snapshot(cx))
8398 .max_point()
8399 }
8400
8401 pub fn text(&self, cx: &AppContext) -> String {
8402 self.buffer.read(cx).read(cx).text()
8403 }
8404
8405 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8406 let text = self.text(cx);
8407 let text = text.trim();
8408
8409 if text.is_empty() {
8410 return None;
8411 }
8412
8413 Some(text.to_string())
8414 }
8415
8416 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8417 self.transact(cx, |this, cx| {
8418 this.buffer
8419 .read(cx)
8420 .as_singleton()
8421 .expect("you can only call set_text on editors for singleton buffers")
8422 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8423 });
8424 }
8425
8426 pub fn display_text(&self, cx: &mut AppContext) -> String {
8427 self.display_map
8428 .update(cx, |map, cx| map.snapshot(cx))
8429 .text()
8430 }
8431
8432 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8433 let mut wrap_guides = smallvec::smallvec![];
8434
8435 if self.show_wrap_guides == Some(false) {
8436 return wrap_guides;
8437 }
8438
8439 let settings = self.buffer.read(cx).settings_at(0, cx);
8440 if settings.show_wrap_guides {
8441 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8442 wrap_guides.push((soft_wrap as usize, true));
8443 }
8444 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8445 }
8446
8447 wrap_guides
8448 }
8449
8450 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8451 let settings = self.buffer.read(cx).settings_at(0, cx);
8452 let mode = self
8453 .soft_wrap_mode_override
8454 .unwrap_or_else(|| settings.soft_wrap);
8455 match mode {
8456 language_settings::SoftWrap::None => SoftWrap::None,
8457 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8458 language_settings::SoftWrap::PreferredLineLength => {
8459 SoftWrap::Column(settings.preferred_line_length)
8460 }
8461 }
8462 }
8463
8464 pub fn set_soft_wrap_mode(
8465 &mut self,
8466 mode: language_settings::SoftWrap,
8467 cx: &mut ViewContext<Self>,
8468 ) {
8469 self.soft_wrap_mode_override = Some(mode);
8470 cx.notify();
8471 }
8472
8473 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8474 let rem_size = cx.rem_size();
8475 self.display_map.update(cx, |map, cx| {
8476 map.set_font(
8477 style.text.font(),
8478 style.text.font_size.to_pixels(rem_size),
8479 cx,
8480 )
8481 });
8482 self.style = Some(style);
8483 }
8484
8485 #[cfg(any(test, feature = "test-support"))]
8486 pub fn style(&self) -> Option<&EditorStyle> {
8487 self.style.as_ref()
8488 }
8489
8490 // Called by the element. This method is not designed to be called outside of the editor
8491 // element's layout code because it does not notify when rewrapping is computed synchronously.
8492 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8493 self.display_map
8494 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8495 }
8496
8497 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8498 if self.soft_wrap_mode_override.is_some() {
8499 self.soft_wrap_mode_override.take();
8500 } else {
8501 let soft_wrap = match self.soft_wrap_mode(cx) {
8502 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8503 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8504 };
8505 self.soft_wrap_mode_override = Some(soft_wrap);
8506 }
8507 cx.notify();
8508 }
8509
8510 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8511 self.show_gutter = show_gutter;
8512 cx.notify();
8513 }
8514
8515 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8516 self.show_wrap_guides = Some(show_gutter);
8517 cx.notify();
8518 }
8519
8520 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8521 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8522 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8523 cx.reveal_path(&file.abs_path(cx));
8524 }
8525 }
8526 }
8527
8528 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8529 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8530 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8531 if let Some(path) = file.abs_path(cx).to_str() {
8532 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8533 }
8534 }
8535 }
8536 }
8537
8538 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8539 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8540 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8541 if let Some(path) = file.path().to_str() {
8542 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8543 }
8544 }
8545 }
8546 }
8547
8548 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8549 use git::permalink::{build_permalink, BuildPermalinkParams};
8550
8551 let project = self.project.clone().ok_or_else(|| anyhow!("no project"))?;
8552 let project = project.read(cx);
8553
8554 let worktree = project
8555 .visible_worktrees(cx)
8556 .next()
8557 .ok_or_else(|| anyhow!("no worktree"))?;
8558
8559 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8560 cwd.push(".git");
8561
8562 const REMOTE_NAME: &'static str = "origin";
8563 let repo = project
8564 .fs()
8565 .open_repo(&cwd)
8566 .ok_or_else(|| anyhow!("no Git repo"))?;
8567 let origin_url = repo
8568 .lock()
8569 .remote_url(REMOTE_NAME)
8570 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8571 let sha = repo
8572 .lock()
8573 .head_sha()
8574 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8575
8576 let path = maybe!({
8577 let buffer = self.buffer().read(cx).as_singleton()?;
8578 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8579 file.path().to_str().map(|path| path.to_string())
8580 })
8581 .ok_or_else(|| anyhow!("failed to determine file path"))?;
8582
8583 let selections = self.selections.all::<Point>(cx);
8584 let selection = selections.iter().peekable().next();
8585
8586 build_permalink(BuildPermalinkParams {
8587 remote_url: &origin_url,
8588 sha: &sha,
8589 path: &path,
8590 selection: selection.map(|selection| selection.range()),
8591 })
8592 }
8593
8594 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8595 let permalink = self.get_permalink_to_line(cx);
8596
8597 match permalink {
8598 Ok(permalink) => {
8599 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8600 }
8601 Err(err) => {
8602 let message = format!("Failed to copy permalink: {err}");
8603
8604 Err::<(), anyhow::Error>(err).log_err();
8605
8606 if let Some(workspace) = self.workspace() {
8607 workspace.update(cx, |workspace, cx| {
8608 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8609 })
8610 }
8611 }
8612 }
8613 }
8614
8615 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8616 let permalink = self.get_permalink_to_line(cx);
8617
8618 match permalink {
8619 Ok(permalink) => {
8620 cx.open_url(&permalink.to_string());
8621 }
8622 Err(err) => {
8623 let message = format!("Failed to open permalink: {err}");
8624
8625 Err::<(), anyhow::Error>(err).log_err();
8626
8627 if let Some(workspace) = self.workspace() {
8628 workspace.update(cx, |workspace, cx| {
8629 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8630 })
8631 }
8632 }
8633 }
8634 }
8635
8636 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8637 self.highlighted_rows = rows;
8638 }
8639
8640 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8641 self.highlighted_rows.clone()
8642 }
8643
8644 pub fn highlight_background<T: 'static>(
8645 &mut self,
8646 ranges: Vec<Range<Anchor>>,
8647 color_fetcher: fn(&ThemeColors) -> Hsla,
8648 cx: &mut ViewContext<Self>,
8649 ) {
8650 let snapshot = self.snapshot(cx);
8651 // this is to try and catch a panic sooner
8652 for range in &ranges {
8653 snapshot
8654 .buffer_snapshot
8655 .summary_for_anchor::<usize>(&range.start);
8656 snapshot
8657 .buffer_snapshot
8658 .summary_for_anchor::<usize>(&range.end);
8659 }
8660
8661 self.background_highlights
8662 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8663 cx.notify();
8664 }
8665
8666 pub(crate) fn highlight_inlay_background<T: 'static>(
8667 &mut self,
8668 ranges: Vec<InlayHighlight>,
8669 color_fetcher: fn(&ThemeColors) -> Hsla,
8670 cx: &mut ViewContext<Self>,
8671 ) {
8672 // TODO: no actual highlights happen for inlays currently, find a way to do that
8673 self.inlay_background_highlights
8674 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8675 cx.notify();
8676 }
8677
8678 pub fn clear_background_highlights<T: 'static>(
8679 &mut self,
8680 cx: &mut ViewContext<Self>,
8681 ) -> Option<BackgroundHighlight> {
8682 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8683 let inlay_highlights = self
8684 .inlay_background_highlights
8685 .remove(&Some(TypeId::of::<T>()));
8686 if text_highlights.is_some() || inlay_highlights.is_some() {
8687 cx.notify();
8688 }
8689 text_highlights
8690 }
8691
8692 #[cfg(feature = "test-support")]
8693 pub fn all_text_background_highlights(
8694 &mut self,
8695 cx: &mut ViewContext<Self>,
8696 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8697 let snapshot = self.snapshot(cx);
8698 let buffer = &snapshot.buffer_snapshot;
8699 let start = buffer.anchor_before(0);
8700 let end = buffer.anchor_after(buffer.len());
8701 let theme = cx.theme().colors();
8702 self.background_highlights_in_range(start..end, &snapshot, theme)
8703 }
8704
8705 fn document_highlights_for_position<'a>(
8706 &'a self,
8707 position: Anchor,
8708 buffer: &'a MultiBufferSnapshot,
8709 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8710 let read_highlights = self
8711 .background_highlights
8712 .get(&TypeId::of::<DocumentHighlightRead>())
8713 .map(|h| &h.1);
8714 let write_highlights = self
8715 .background_highlights
8716 .get(&TypeId::of::<DocumentHighlightWrite>())
8717 .map(|h| &h.1);
8718 let left_position = position.bias_left(buffer);
8719 let right_position = position.bias_right(buffer);
8720 read_highlights
8721 .into_iter()
8722 .chain(write_highlights)
8723 .flat_map(move |ranges| {
8724 let start_ix = match ranges.binary_search_by(|probe| {
8725 let cmp = probe.end.cmp(&left_position, buffer);
8726 if cmp.is_ge() {
8727 Ordering::Greater
8728 } else {
8729 Ordering::Less
8730 }
8731 }) {
8732 Ok(i) | Err(i) => i,
8733 };
8734
8735 let right_position = right_position.clone();
8736 ranges[start_ix..]
8737 .iter()
8738 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8739 })
8740 }
8741
8742 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8743 self.background_highlights
8744 .get(&TypeId::of::<T>())
8745 .map_or(false, |(_, highlights)| !highlights.is_empty())
8746 }
8747
8748 pub fn background_highlights_in_range(
8749 &self,
8750 search_range: Range<Anchor>,
8751 display_snapshot: &DisplaySnapshot,
8752 theme: &ThemeColors,
8753 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8754 let mut results = Vec::new();
8755 for (color_fetcher, ranges) in self.background_highlights.values() {
8756 let color = color_fetcher(theme);
8757 let start_ix = match ranges.binary_search_by(|probe| {
8758 let cmp = probe
8759 .end
8760 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8761 if cmp.is_gt() {
8762 Ordering::Greater
8763 } else {
8764 Ordering::Less
8765 }
8766 }) {
8767 Ok(i) | Err(i) => i,
8768 };
8769 for range in &ranges[start_ix..] {
8770 if range
8771 .start
8772 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8773 .is_ge()
8774 {
8775 break;
8776 }
8777
8778 let start = range.start.to_display_point(&display_snapshot);
8779 let end = range.end.to_display_point(&display_snapshot);
8780 results.push((start..end, color))
8781 }
8782 }
8783 results
8784 }
8785
8786 pub fn background_highlight_row_ranges<T: 'static>(
8787 &self,
8788 search_range: Range<Anchor>,
8789 display_snapshot: &DisplaySnapshot,
8790 count: usize,
8791 ) -> Vec<RangeInclusive<DisplayPoint>> {
8792 let mut results = Vec::new();
8793 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8794 return vec![];
8795 };
8796
8797 let start_ix = match ranges.binary_search_by(|probe| {
8798 let cmp = probe
8799 .end
8800 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8801 if cmp.is_gt() {
8802 Ordering::Greater
8803 } else {
8804 Ordering::Less
8805 }
8806 }) {
8807 Ok(i) | Err(i) => i,
8808 };
8809 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8810 if let (Some(start_display), Some(end_display)) = (start, end) {
8811 results.push(
8812 start_display.to_display_point(display_snapshot)
8813 ..=end_display.to_display_point(display_snapshot),
8814 );
8815 }
8816 };
8817 let mut start_row: Option<Point> = None;
8818 let mut end_row: Option<Point> = None;
8819 if ranges.len() > count {
8820 return Vec::new();
8821 }
8822 for range in &ranges[start_ix..] {
8823 if range
8824 .start
8825 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8826 .is_ge()
8827 {
8828 break;
8829 }
8830 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8831 if let Some(current_row) = &end_row {
8832 if end.row == current_row.row {
8833 continue;
8834 }
8835 }
8836 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8837 if start_row.is_none() {
8838 assert_eq!(end_row, None);
8839 start_row = Some(start);
8840 end_row = Some(end);
8841 continue;
8842 }
8843 if let Some(current_end) = end_row.as_mut() {
8844 if start.row > current_end.row + 1 {
8845 push_region(start_row, end_row);
8846 start_row = Some(start);
8847 end_row = Some(end);
8848 } else {
8849 // Merge two hunks.
8850 *current_end = end;
8851 }
8852 } else {
8853 unreachable!();
8854 }
8855 }
8856 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8857 push_region(start_row, end_row);
8858 results
8859 }
8860
8861 /// Get the text ranges corresponding to the redaction query
8862 pub fn redacted_ranges(
8863 &self,
8864 search_range: Range<Anchor>,
8865 display_snapshot: &DisplaySnapshot,
8866 cx: &mut ViewContext<Self>,
8867 ) -> Vec<Range<DisplayPoint>> {
8868 display_snapshot
8869 .buffer_snapshot
8870 .redacted_ranges(search_range, |file| {
8871 if let Some(file) = file {
8872 file.is_private()
8873 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8874 .redact_private_values
8875 } else {
8876 false
8877 }
8878 })
8879 .map(|range| {
8880 range.start.to_display_point(display_snapshot)
8881 ..range.end.to_display_point(display_snapshot)
8882 })
8883 .collect()
8884 }
8885
8886 pub fn highlight_text<T: 'static>(
8887 &mut self,
8888 ranges: Vec<Range<Anchor>>,
8889 style: HighlightStyle,
8890 cx: &mut ViewContext<Self>,
8891 ) {
8892 self.display_map.update(cx, |map, _| {
8893 map.highlight_text(TypeId::of::<T>(), ranges, style)
8894 });
8895 cx.notify();
8896 }
8897
8898 pub(crate) fn highlight_inlays<T: 'static>(
8899 &mut self,
8900 highlights: Vec<InlayHighlight>,
8901 style: HighlightStyle,
8902 cx: &mut ViewContext<Self>,
8903 ) {
8904 self.display_map.update(cx, |map, _| {
8905 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8906 });
8907 cx.notify();
8908 }
8909
8910 pub fn text_highlights<'a, T: 'static>(
8911 &'a self,
8912 cx: &'a AppContext,
8913 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8914 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8915 }
8916
8917 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8918 let cleared = self
8919 .display_map
8920 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8921 if cleared {
8922 cx.notify();
8923 }
8924 }
8925
8926 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8927 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8928 && self.focus_handle.is_focused(cx)
8929 }
8930
8931 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8932 cx.notify();
8933 }
8934
8935 fn on_buffer_event(
8936 &mut self,
8937 multibuffer: Model<MultiBuffer>,
8938 event: &multi_buffer::Event,
8939 cx: &mut ViewContext<Self>,
8940 ) {
8941 match event {
8942 multi_buffer::Event::Edited {
8943 singleton_buffer_edited,
8944 } => {
8945 self.refresh_active_diagnostics(cx);
8946 self.refresh_code_actions(cx);
8947 if self.has_active_copilot_suggestion(cx) {
8948 self.update_visible_copilot_suggestion(cx);
8949 }
8950 cx.emit(EditorEvent::BufferEdited);
8951 cx.emit(SearchEvent::MatchesInvalidated);
8952
8953 if *singleton_buffer_edited {
8954 if let Some(project) = &self.project {
8955 let project = project.read(cx);
8956 let languages_affected = multibuffer
8957 .read(cx)
8958 .all_buffers()
8959 .into_iter()
8960 .filter_map(|buffer| {
8961 let buffer = buffer.read(cx);
8962 let language = buffer.language()?;
8963 if project.is_local()
8964 && project.language_servers_for_buffer(buffer, cx).count() == 0
8965 {
8966 None
8967 } else {
8968 Some(language)
8969 }
8970 })
8971 .cloned()
8972 .collect::<HashSet<_>>();
8973 if !languages_affected.is_empty() {
8974 self.refresh_inlay_hints(
8975 InlayHintRefreshReason::BufferEdited(languages_affected),
8976 cx,
8977 );
8978 }
8979 }
8980 }
8981
8982 let Some(project) = &self.project else { return };
8983 let telemetry = project.read(cx).client().telemetry().clone();
8984 telemetry.log_edit_event("editor");
8985 }
8986 multi_buffer::Event::ExcerptsAdded {
8987 buffer,
8988 predecessor,
8989 excerpts,
8990 } => {
8991 cx.emit(EditorEvent::ExcerptsAdded {
8992 buffer: buffer.clone(),
8993 predecessor: *predecessor,
8994 excerpts: excerpts.clone(),
8995 });
8996 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8997 }
8998 multi_buffer::Event::ExcerptsRemoved { ids } => {
8999 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9000 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9001 }
9002 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9003 multi_buffer::Event::LanguageChanged => {
9004 cx.emit(EditorEvent::Reparsed);
9005 cx.notify();
9006 }
9007 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9008 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9009 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9010 cx.emit(EditorEvent::TitleChanged)
9011 }
9012 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9013 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9014 multi_buffer::Event::DiagnosticsUpdated => {
9015 self.refresh_active_diagnostics(cx);
9016 }
9017 _ => {}
9018 };
9019 }
9020
9021 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9022 cx.notify();
9023 }
9024
9025 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9026 self.refresh_copilot_suggestions(true, cx);
9027 self.refresh_inlay_hints(
9028 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9029 self.selections.newest_anchor().head(),
9030 &self.buffer.read(cx).snapshot(cx),
9031 cx,
9032 )),
9033 cx,
9034 );
9035 let editor_settings = EditorSettings::get_global(cx);
9036 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9037 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9038 cx.notify();
9039 }
9040
9041 pub fn set_searchable(&mut self, searchable: bool) {
9042 self.searchable = searchable;
9043 }
9044
9045 pub fn searchable(&self) -> bool {
9046 self.searchable
9047 }
9048
9049 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9050 let buffer = self.buffer.read(cx);
9051 if buffer.is_singleton() {
9052 cx.propagate();
9053 return;
9054 }
9055
9056 let Some(workspace) = self.workspace() else {
9057 cx.propagate();
9058 return;
9059 };
9060
9061 let mut new_selections_by_buffer = HashMap::default();
9062 for selection in self.selections.all::<usize>(cx) {
9063 for (buffer, mut range, _) in
9064 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9065 {
9066 if selection.reversed {
9067 mem::swap(&mut range.start, &mut range.end);
9068 }
9069 new_selections_by_buffer
9070 .entry(buffer)
9071 .or_insert(Vec::new())
9072 .push(range)
9073 }
9074 }
9075
9076 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
9077
9078 // We defer the pane interaction because we ourselves are a workspace item
9079 // and activating a new item causes the pane to call a method on us reentrantly,
9080 // which panics if we're on the stack.
9081 cx.window_context().defer(move |cx| {
9082 workspace.update(cx, |workspace, cx| {
9083 let pane = workspace.active_pane().clone();
9084 pane.update(cx, |pane, _| pane.disable_history());
9085
9086 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9087 let editor = workspace.open_project_item::<Self>(buffer, cx);
9088 editor.update(cx, |editor, cx| {
9089 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9090 s.select_ranges(ranges);
9091 });
9092 });
9093 }
9094
9095 pane.update(cx, |pane, _| pane.enable_history());
9096 })
9097 });
9098 }
9099
9100 fn jump(
9101 &mut self,
9102 path: ProjectPath,
9103 position: Point,
9104 anchor: language::Anchor,
9105 cx: &mut ViewContext<Self>,
9106 ) {
9107 let workspace = self.workspace();
9108 cx.spawn(|_, mut cx| async move {
9109 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9110 let editor = workspace.update(&mut cx, |workspace, cx| {
9111 workspace.open_path(path, None, true, cx)
9112 })?;
9113 let editor = editor
9114 .await?
9115 .downcast::<Editor>()
9116 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9117 .downgrade();
9118 editor.update(&mut cx, |editor, cx| {
9119 let buffer = editor
9120 .buffer()
9121 .read(cx)
9122 .as_singleton()
9123 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9124 let buffer = buffer.read(cx);
9125 let cursor = if buffer.can_resolve(&anchor) {
9126 language::ToPoint::to_point(&anchor, buffer)
9127 } else {
9128 buffer.clip_point(position, Bias::Left)
9129 };
9130
9131 let nav_history = editor.nav_history.take();
9132 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9133 s.select_ranges([cursor..cursor]);
9134 });
9135 editor.nav_history = nav_history;
9136
9137 anyhow::Ok(())
9138 })??;
9139
9140 anyhow::Ok(())
9141 })
9142 .detach_and_log_err(cx);
9143 }
9144
9145 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9146 let snapshot = self.buffer.read(cx).read(cx);
9147 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9148 Some(
9149 ranges
9150 .iter()
9151 .map(move |range| {
9152 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9153 })
9154 .collect(),
9155 )
9156 }
9157
9158 fn selection_replacement_ranges(
9159 &self,
9160 range: Range<OffsetUtf16>,
9161 cx: &AppContext,
9162 ) -> Vec<Range<OffsetUtf16>> {
9163 let selections = self.selections.all::<OffsetUtf16>(cx);
9164 let newest_selection = selections
9165 .iter()
9166 .max_by_key(|selection| selection.id)
9167 .unwrap();
9168 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9169 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9170 let snapshot = self.buffer.read(cx).read(cx);
9171 selections
9172 .into_iter()
9173 .map(|mut selection| {
9174 selection.start.0 =
9175 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9176 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9177 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9178 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9179 })
9180 .collect()
9181 }
9182
9183 fn report_copilot_event(
9184 &self,
9185 suggestion_id: Option<String>,
9186 suggestion_accepted: bool,
9187 cx: &AppContext,
9188 ) {
9189 let Some(project) = &self.project else { return };
9190
9191 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9192 let file_extension = self
9193 .buffer
9194 .read(cx)
9195 .as_singleton()
9196 .and_then(|b| b.read(cx).file())
9197 .and_then(|file| Path::new(file.file_name(cx)).extension())
9198 .and_then(|e| e.to_str())
9199 .map(|a| a.to_string());
9200
9201 let telemetry = project.read(cx).client().telemetry().clone();
9202
9203 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9204 }
9205
9206 #[cfg(any(test, feature = "test-support"))]
9207 fn report_editor_event(
9208 &self,
9209 _operation: &'static str,
9210 _file_extension: Option<String>,
9211 _cx: &AppContext,
9212 ) {
9213 }
9214
9215 #[cfg(not(any(test, feature = "test-support")))]
9216 fn report_editor_event(
9217 &self,
9218 operation: &'static str,
9219 file_extension: Option<String>,
9220 cx: &AppContext,
9221 ) {
9222 let Some(project) = &self.project else { return };
9223
9224 // If None, we are in a file without an extension
9225 let file = self
9226 .buffer
9227 .read(cx)
9228 .as_singleton()
9229 .and_then(|b| b.read(cx).file());
9230 let file_extension = file_extension.or(file
9231 .as_ref()
9232 .and_then(|file| Path::new(file.file_name(cx)).extension())
9233 .and_then(|e| e.to_str())
9234 .map(|a| a.to_string()));
9235
9236 let vim_mode = cx
9237 .global::<SettingsStore>()
9238 .raw_user_settings()
9239 .get("vim_mode")
9240 == Some(&serde_json::Value::Bool(true));
9241 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9242 let copilot_enabled_for_language = self
9243 .buffer
9244 .read(cx)
9245 .settings_at(0, cx)
9246 .show_copilot_suggestions;
9247
9248 let telemetry = project.read(cx).client().telemetry().clone();
9249 telemetry.report_editor_event(
9250 file_extension,
9251 vim_mode,
9252 operation,
9253 copilot_enabled,
9254 copilot_enabled_for_language,
9255 )
9256 }
9257
9258 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9259 /// with each line being an array of {text, highlight} objects.
9260 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9261 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9262 return;
9263 };
9264
9265 #[derive(Serialize)]
9266 struct Chunk<'a> {
9267 text: String,
9268 highlight: Option<&'a str>,
9269 }
9270
9271 let snapshot = buffer.read(cx).snapshot();
9272 let range = self
9273 .selected_text_range(cx)
9274 .and_then(|selected_range| {
9275 if selected_range.is_empty() {
9276 None
9277 } else {
9278 Some(selected_range)
9279 }
9280 })
9281 .unwrap_or_else(|| 0..snapshot.len());
9282
9283 let chunks = snapshot.chunks(range, true);
9284 let mut lines = Vec::new();
9285 let mut line: VecDeque<Chunk> = VecDeque::new();
9286
9287 let Some(style) = self.style.as_ref() else {
9288 return;
9289 };
9290
9291 for chunk in chunks {
9292 let highlight = chunk
9293 .syntax_highlight_id
9294 .and_then(|id| id.name(&style.syntax));
9295 let mut chunk_lines = chunk.text.split("\n").peekable();
9296 while let Some(text) = chunk_lines.next() {
9297 let mut merged_with_last_token = false;
9298 if let Some(last_token) = line.back_mut() {
9299 if last_token.highlight == highlight {
9300 last_token.text.push_str(text);
9301 merged_with_last_token = true;
9302 }
9303 }
9304
9305 if !merged_with_last_token {
9306 line.push_back(Chunk {
9307 text: text.into(),
9308 highlight,
9309 });
9310 }
9311
9312 if chunk_lines.peek().is_some() {
9313 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9314 line.pop_front();
9315 }
9316 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9317 line.pop_back();
9318 }
9319
9320 lines.push(mem::take(&mut line));
9321 }
9322 }
9323 }
9324
9325 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9326 return;
9327 };
9328 cx.write_to_clipboard(ClipboardItem::new(lines));
9329 }
9330
9331 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9332 &self.inlay_hint_cache
9333 }
9334
9335 pub fn replay_insert_event(
9336 &mut self,
9337 text: &str,
9338 relative_utf16_range: Option<Range<isize>>,
9339 cx: &mut ViewContext<Self>,
9340 ) {
9341 if !self.input_enabled {
9342 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9343 return;
9344 }
9345 if let Some(relative_utf16_range) = relative_utf16_range {
9346 let selections = self.selections.all::<OffsetUtf16>(cx);
9347 self.change_selections(None, cx, |s| {
9348 let new_ranges = selections.into_iter().map(|range| {
9349 let start = OffsetUtf16(
9350 range
9351 .head()
9352 .0
9353 .saturating_add_signed(relative_utf16_range.start),
9354 );
9355 let end = OffsetUtf16(
9356 range
9357 .head()
9358 .0
9359 .saturating_add_signed(relative_utf16_range.end),
9360 );
9361 start..end
9362 });
9363 s.select_ranges(new_ranges);
9364 });
9365 }
9366
9367 self.handle_input(text, cx);
9368 }
9369
9370 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9371 let Some(project) = self.project.as_ref() else {
9372 return false;
9373 };
9374 let project = project.read(cx);
9375
9376 let mut supports = false;
9377 self.buffer().read(cx).for_each_buffer(|buffer| {
9378 if !supports {
9379 supports = project
9380 .language_servers_for_buffer(buffer.read(cx), cx)
9381 .any(
9382 |(_, server)| match server.capabilities().inlay_hint_provider {
9383 Some(lsp::OneOf::Left(enabled)) => enabled,
9384 Some(lsp::OneOf::Right(_)) => true,
9385 None => false,
9386 },
9387 )
9388 }
9389 });
9390 supports
9391 }
9392
9393 pub fn focus(&self, cx: &mut WindowContext) {
9394 cx.focus(&self.focus_handle)
9395 }
9396
9397 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9398 self.focus_handle.is_focused(cx)
9399 }
9400
9401 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9402 cx.emit(EditorEvent::Focused);
9403
9404 if let Some(rename) = self.pending_rename.as_ref() {
9405 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9406 cx.focus(&rename_editor_focus_handle);
9407 } else {
9408 self.blink_manager.update(cx, BlinkManager::enable);
9409 self.show_cursor_names(cx);
9410 self.buffer.update(cx, |buffer, cx| {
9411 buffer.finalize_last_transaction(cx);
9412 if self.leader_peer_id.is_none() {
9413 buffer.set_active_selections(
9414 &self.selections.disjoint_anchors(),
9415 self.selections.line_mode,
9416 self.cursor_shape,
9417 cx,
9418 );
9419 }
9420 });
9421 }
9422 }
9423
9424 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9425 self.blink_manager.update(cx, BlinkManager::disable);
9426 self.buffer
9427 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9428 self.hide_context_menu(cx);
9429 hide_hover(self, cx);
9430 cx.emit(EditorEvent::Blurred);
9431 cx.notify();
9432 }
9433
9434 pub fn register_action<A: Action>(
9435 &mut self,
9436 listener: impl Fn(&A, &mut WindowContext) + 'static,
9437 ) -> &mut Self {
9438 let listener = Arc::new(listener);
9439
9440 self.editor_actions.push(Box::new(move |cx| {
9441 let _view = cx.view().clone();
9442 let cx = cx.window_context();
9443 let listener = listener.clone();
9444 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9445 let action = action.downcast_ref().unwrap();
9446 if phase == DispatchPhase::Bubble {
9447 listener(action, cx)
9448 }
9449 })
9450 }));
9451 self
9452 }
9453}
9454
9455pub trait CollaborationHub {
9456 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9457 fn user_participant_indices<'a>(
9458 &self,
9459 cx: &'a AppContext,
9460 ) -> &'a HashMap<u64, ParticipantIndex>;
9461 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9462}
9463
9464impl CollaborationHub for Model<Project> {
9465 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9466 self.read(cx).collaborators()
9467 }
9468
9469 fn user_participant_indices<'a>(
9470 &self,
9471 cx: &'a AppContext,
9472 ) -> &'a HashMap<u64, ParticipantIndex> {
9473 self.read(cx).user_store().read(cx).participant_indices()
9474 }
9475
9476 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9477 let this = self.read(cx);
9478 let user_ids = this.collaborators().values().map(|c| c.user_id);
9479 this.user_store().read_with(cx, |user_store, cx| {
9480 user_store.participant_names(user_ids, cx)
9481 })
9482 }
9483}
9484
9485pub trait CompletionProvider {
9486 fn completions(
9487 &self,
9488 buffer: &Model<Buffer>,
9489 buffer_position: text::Anchor,
9490 cx: &mut ViewContext<Editor>,
9491 ) -> Task<Result<Vec<Completion>>>;
9492
9493 fn resolve_completions(
9494 &self,
9495 completion_indices: Vec<usize>,
9496 completions: Arc<RwLock<Box<[Completion]>>>,
9497 cx: &mut ViewContext<Editor>,
9498 ) -> Task<Result<bool>>;
9499
9500 fn apply_additional_edits_for_completion(
9501 &self,
9502 buffer: Model<Buffer>,
9503 completion: Completion,
9504 push_to_history: bool,
9505 cx: &mut ViewContext<Editor>,
9506 ) -> Task<Result<Option<language::Transaction>>>;
9507}
9508
9509impl CompletionProvider for Model<Project> {
9510 fn completions(
9511 &self,
9512 buffer: &Model<Buffer>,
9513 buffer_position: text::Anchor,
9514 cx: &mut ViewContext<Editor>,
9515 ) -> Task<Result<Vec<Completion>>> {
9516 self.update(cx, |project, cx| {
9517 project.completions(&buffer, buffer_position, cx)
9518 })
9519 }
9520
9521 fn resolve_completions(
9522 &self,
9523 completion_indices: Vec<usize>,
9524 completions: Arc<RwLock<Box<[Completion]>>>,
9525 cx: &mut ViewContext<Editor>,
9526 ) -> Task<Result<bool>> {
9527 self.update(cx, |project, cx| {
9528 project.resolve_completions(completion_indices, completions, cx)
9529 })
9530 }
9531
9532 fn apply_additional_edits_for_completion(
9533 &self,
9534 buffer: Model<Buffer>,
9535 completion: Completion,
9536 push_to_history: bool,
9537 cx: &mut ViewContext<Editor>,
9538 ) -> Task<Result<Option<language::Transaction>>> {
9539 self.update(cx, |project, cx| {
9540 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9541 })
9542 }
9543}
9544
9545fn inlay_hint_settings(
9546 location: Anchor,
9547 snapshot: &MultiBufferSnapshot,
9548 cx: &mut ViewContext<'_, Editor>,
9549) -> InlayHintSettings {
9550 let file = snapshot.file_at(location);
9551 let language = snapshot.language_at(location);
9552 let settings = all_language_settings(file, cx);
9553 settings
9554 .language(language.map(|l| l.name()).as_deref())
9555 .inlay_hints
9556}
9557
9558fn consume_contiguous_rows(
9559 contiguous_row_selections: &mut Vec<Selection<Point>>,
9560 selection: &Selection<Point>,
9561 display_map: &DisplaySnapshot,
9562 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9563) -> (u32, u32) {
9564 contiguous_row_selections.push(selection.clone());
9565 let start_row = selection.start.row;
9566 let mut end_row = ending_row(selection, display_map);
9567
9568 while let Some(next_selection) = selections.peek() {
9569 if next_selection.start.row <= end_row {
9570 end_row = ending_row(next_selection, display_map);
9571 contiguous_row_selections.push(selections.next().unwrap().clone());
9572 } else {
9573 break;
9574 }
9575 }
9576 (start_row, end_row)
9577}
9578
9579fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9580 if next_selection.end.column > 0 || next_selection.is_empty() {
9581 display_map.next_line_boundary(next_selection.end).0.row + 1
9582 } else {
9583 next_selection.end.row
9584 }
9585}
9586
9587impl EditorSnapshot {
9588 pub fn remote_selections_in_range<'a>(
9589 &'a self,
9590 range: &'a Range<Anchor>,
9591 collaboration_hub: &dyn CollaborationHub,
9592 cx: &'a AppContext,
9593 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9594 let participant_names = collaboration_hub.user_names(cx);
9595 let participant_indices = collaboration_hub.user_participant_indices(cx);
9596 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9597 let collaborators_by_replica_id = collaborators_by_peer_id
9598 .iter()
9599 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9600 .collect::<HashMap<_, _>>();
9601 self.buffer_snapshot
9602 .remote_selections_in_range(range)
9603 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9604 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9605 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9606 let user_name = participant_names.get(&collaborator.user_id).cloned();
9607 Some(RemoteSelection {
9608 replica_id,
9609 selection,
9610 cursor_shape,
9611 line_mode,
9612 participant_index,
9613 peer_id: collaborator.peer_id,
9614 user_name,
9615 })
9616 })
9617 }
9618
9619 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9620 self.display_snapshot.buffer_snapshot.language_at(position)
9621 }
9622
9623 pub fn is_focused(&self) -> bool {
9624 self.is_focused
9625 }
9626
9627 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9628 self.placeholder_text.as_ref()
9629 }
9630
9631 pub fn scroll_position(&self) -> gpui::Point<f32> {
9632 self.scroll_anchor.scroll_position(&self.display_snapshot)
9633 }
9634
9635 pub fn gutter_dimensions(
9636 &self,
9637 font_id: FontId,
9638 font_size: Pixels,
9639 em_width: Pixels,
9640 max_line_number_width: Pixels,
9641 cx: &AppContext,
9642 ) -> GutterDimensions {
9643 if !self.show_gutter {
9644 return GutterDimensions::default();
9645 }
9646 let descent = cx.text_system().descent(font_id, font_size);
9647
9648 let show_git_gutter = matches!(
9649 ProjectSettings::get_global(cx).git.git_gutter,
9650 Some(GitGutterSetting::TrackedFiles)
9651 );
9652 let gutter_settings = EditorSettings::get_global(cx).gutter;
9653
9654 let line_gutter_width = if gutter_settings.line_numbers {
9655 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9656 let min_width_for_number_on_gutter = em_width * 4.0;
9657 max_line_number_width.max(min_width_for_number_on_gutter)
9658 } else {
9659 0.0.into()
9660 };
9661
9662 let left_padding = if gutter_settings.code_actions {
9663 em_width * 3.0
9664 } else if show_git_gutter && gutter_settings.line_numbers {
9665 em_width * 2.0
9666 } else if show_git_gutter || gutter_settings.line_numbers {
9667 em_width
9668 } else {
9669 px(0.)
9670 };
9671
9672 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9673 em_width * 4.0
9674 } else if gutter_settings.folds {
9675 em_width * 3.0
9676 } else if gutter_settings.line_numbers {
9677 em_width
9678 } else {
9679 px(0.)
9680 };
9681
9682 GutterDimensions {
9683 left_padding,
9684 right_padding,
9685 width: line_gutter_width + left_padding + right_padding,
9686 margin: -descent,
9687 }
9688 }
9689}
9690
9691impl Deref for EditorSnapshot {
9692 type Target = DisplaySnapshot;
9693
9694 fn deref(&self) -> &Self::Target {
9695 &self.display_snapshot
9696 }
9697}
9698
9699#[derive(Clone, Debug, PartialEq, Eq)]
9700pub enum EditorEvent {
9701 InputIgnored {
9702 text: Arc<str>,
9703 },
9704 InputHandled {
9705 utf16_range_to_replace: Option<Range<isize>>,
9706 text: Arc<str>,
9707 },
9708 ExcerptsAdded {
9709 buffer: Model<Buffer>,
9710 predecessor: ExcerptId,
9711 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9712 },
9713 ExcerptsRemoved {
9714 ids: Vec<ExcerptId>,
9715 },
9716 BufferEdited,
9717 Edited,
9718 Reparsed,
9719 Focused,
9720 Blurred,
9721 DirtyChanged,
9722 Saved,
9723 TitleChanged,
9724 DiffBaseChanged,
9725 SelectionsChanged {
9726 local: bool,
9727 },
9728 ScrollPositionChanged {
9729 local: bool,
9730 autoscroll: bool,
9731 },
9732 Closed,
9733}
9734
9735impl EventEmitter<EditorEvent> for Editor {}
9736
9737impl FocusableView for Editor {
9738 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9739 self.focus_handle.clone()
9740 }
9741}
9742
9743impl Render for Editor {
9744 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9745 let settings = ThemeSettings::get_global(cx);
9746 let text_style = match self.mode {
9747 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9748 color: cx.theme().colors().editor_foreground,
9749 font_family: settings.ui_font.family.clone(),
9750 font_features: settings.ui_font.features,
9751 font_size: rems(0.875).into(),
9752 font_weight: FontWeight::NORMAL,
9753 font_style: FontStyle::Normal,
9754 line_height: relative(settings.buffer_line_height.value()),
9755 background_color: None,
9756 underline: None,
9757 strikethrough: None,
9758 white_space: WhiteSpace::Normal,
9759 },
9760
9761 EditorMode::Full => TextStyle {
9762 color: cx.theme().colors().editor_foreground,
9763 font_family: settings.buffer_font.family.clone(),
9764 font_features: settings.buffer_font.features,
9765 font_size: settings.buffer_font_size(cx).into(),
9766 font_weight: FontWeight::NORMAL,
9767 font_style: FontStyle::Normal,
9768 line_height: relative(settings.buffer_line_height.value()),
9769 background_color: None,
9770 underline: None,
9771 strikethrough: None,
9772 white_space: WhiteSpace::Normal,
9773 },
9774 };
9775
9776 let background = match self.mode {
9777 EditorMode::SingleLine => cx.theme().system().transparent,
9778 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9779 EditorMode::Full => cx.theme().colors().editor_background,
9780 };
9781
9782 EditorElement::new(
9783 cx.view(),
9784 EditorStyle {
9785 background,
9786 local_player: cx.theme().players().local(),
9787 text: text_style,
9788 scrollbar_width: px(12.),
9789 syntax: cx.theme().syntax().clone(),
9790 status: cx.theme().status().clone(),
9791 inlays_style: HighlightStyle {
9792 color: Some(cx.theme().status().hint),
9793 font_weight: Some(FontWeight::BOLD),
9794 ..HighlightStyle::default()
9795 },
9796 suggestions_style: HighlightStyle {
9797 color: Some(cx.theme().status().predictive),
9798 ..HighlightStyle::default()
9799 },
9800 },
9801 )
9802 }
9803}
9804
9805impl ViewInputHandler for Editor {
9806 fn text_for_range(
9807 &mut self,
9808 range_utf16: Range<usize>,
9809 cx: &mut ViewContext<Self>,
9810 ) -> Option<String> {
9811 Some(
9812 self.buffer
9813 .read(cx)
9814 .read(cx)
9815 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9816 .collect(),
9817 )
9818 }
9819
9820 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9821 // Prevent the IME menu from appearing when holding down an alphabetic key
9822 // while input is disabled.
9823 if !self.input_enabled {
9824 return None;
9825 }
9826
9827 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9828 Some(range.start.0..range.end.0)
9829 }
9830
9831 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9832 let snapshot = self.buffer.read(cx).read(cx);
9833 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9834 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9835 }
9836
9837 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9838 self.clear_highlights::<InputComposition>(cx);
9839 self.ime_transaction.take();
9840 }
9841
9842 fn replace_text_in_range(
9843 &mut self,
9844 range_utf16: Option<Range<usize>>,
9845 text: &str,
9846 cx: &mut ViewContext<Self>,
9847 ) {
9848 if !self.input_enabled {
9849 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9850 return;
9851 }
9852
9853 self.transact(cx, |this, cx| {
9854 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9855 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9856 Some(this.selection_replacement_ranges(range_utf16, cx))
9857 } else {
9858 this.marked_text_ranges(cx)
9859 };
9860
9861 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9862 let newest_selection_id = this.selections.newest_anchor().id;
9863 this.selections
9864 .all::<OffsetUtf16>(cx)
9865 .iter()
9866 .zip(ranges_to_replace.iter())
9867 .find_map(|(selection, range)| {
9868 if selection.id == newest_selection_id {
9869 Some(
9870 (range.start.0 as isize - selection.head().0 as isize)
9871 ..(range.end.0 as isize - selection.head().0 as isize),
9872 )
9873 } else {
9874 None
9875 }
9876 })
9877 });
9878
9879 cx.emit(EditorEvent::InputHandled {
9880 utf16_range_to_replace: range_to_replace,
9881 text: text.into(),
9882 });
9883
9884 if let Some(new_selected_ranges) = new_selected_ranges {
9885 this.change_selections(None, cx, |selections| {
9886 selections.select_ranges(new_selected_ranges)
9887 });
9888 this.backspace(&Default::default(), cx);
9889 }
9890
9891 this.handle_input(text, cx);
9892 });
9893
9894 if let Some(transaction) = self.ime_transaction {
9895 self.buffer.update(cx, |buffer, cx| {
9896 buffer.group_until_transaction(transaction, cx);
9897 });
9898 }
9899
9900 self.unmark_text(cx);
9901 }
9902
9903 fn replace_and_mark_text_in_range(
9904 &mut self,
9905 range_utf16: Option<Range<usize>>,
9906 text: &str,
9907 new_selected_range_utf16: Option<Range<usize>>,
9908 cx: &mut ViewContext<Self>,
9909 ) {
9910 if !self.input_enabled {
9911 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9912 return;
9913 }
9914
9915 let transaction = self.transact(cx, |this, cx| {
9916 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9917 let snapshot = this.buffer.read(cx).read(cx);
9918 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9919 for marked_range in &mut marked_ranges {
9920 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9921 marked_range.start.0 += relative_range_utf16.start;
9922 marked_range.start =
9923 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9924 marked_range.end =
9925 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9926 }
9927 }
9928 Some(marked_ranges)
9929 } else if let Some(range_utf16) = range_utf16 {
9930 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9931 Some(this.selection_replacement_ranges(range_utf16, cx))
9932 } else {
9933 None
9934 };
9935
9936 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9937 let newest_selection_id = this.selections.newest_anchor().id;
9938 this.selections
9939 .all::<OffsetUtf16>(cx)
9940 .iter()
9941 .zip(ranges_to_replace.iter())
9942 .find_map(|(selection, range)| {
9943 if selection.id == newest_selection_id {
9944 Some(
9945 (range.start.0 as isize - selection.head().0 as isize)
9946 ..(range.end.0 as isize - selection.head().0 as isize),
9947 )
9948 } else {
9949 None
9950 }
9951 })
9952 });
9953
9954 cx.emit(EditorEvent::InputHandled {
9955 utf16_range_to_replace: range_to_replace,
9956 text: text.into(),
9957 });
9958
9959 if let Some(ranges) = ranges_to_replace {
9960 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9961 }
9962
9963 let marked_ranges = {
9964 let snapshot = this.buffer.read(cx).read(cx);
9965 this.selections
9966 .disjoint_anchors()
9967 .iter()
9968 .map(|selection| {
9969 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9970 })
9971 .collect::<Vec<_>>()
9972 };
9973
9974 if text.is_empty() {
9975 this.unmark_text(cx);
9976 } else {
9977 this.highlight_text::<InputComposition>(
9978 marked_ranges.clone(),
9979 HighlightStyle {
9980 underline: Some(UnderlineStyle {
9981 thickness: px(1.),
9982 color: None,
9983 wavy: false,
9984 }),
9985 ..Default::default()
9986 },
9987 cx,
9988 );
9989 }
9990
9991 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
9992 let use_autoclose = this.use_autoclose;
9993 this.set_use_autoclose(false);
9994 this.handle_input(text, cx);
9995 this.set_use_autoclose(use_autoclose);
9996
9997 if let Some(new_selected_range) = new_selected_range_utf16 {
9998 let snapshot = this.buffer.read(cx).read(cx);
9999 let new_selected_ranges = marked_ranges
10000 .into_iter()
10001 .map(|marked_range| {
10002 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10003 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10004 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10005 snapshot.clip_offset_utf16(new_start, Bias::Left)
10006 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10007 })
10008 .collect::<Vec<_>>();
10009
10010 drop(snapshot);
10011 this.change_selections(None, cx, |selections| {
10012 selections.select_ranges(new_selected_ranges)
10013 });
10014 }
10015 });
10016
10017 self.ime_transaction = self.ime_transaction.or(transaction);
10018 if let Some(transaction) = self.ime_transaction {
10019 self.buffer.update(cx, |buffer, cx| {
10020 buffer.group_until_transaction(transaction, cx);
10021 });
10022 }
10023
10024 if self.text_highlights::<InputComposition>(cx).is_none() {
10025 self.ime_transaction.take();
10026 }
10027 }
10028
10029 fn bounds_for_range(
10030 &mut self,
10031 range_utf16: Range<usize>,
10032 element_bounds: gpui::Bounds<Pixels>,
10033 cx: &mut ViewContext<Self>,
10034 ) -> Option<gpui::Bounds<Pixels>> {
10035 let text_layout_details = self.text_layout_details(cx);
10036 let style = &text_layout_details.editor_style;
10037 let font_id = cx.text_system().resolve_font(&style.text.font());
10038 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10039 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10040 let em_width = cx
10041 .text_system()
10042 .typographic_bounds(font_id, font_size, 'm')
10043 .unwrap()
10044 .size
10045 .width;
10046
10047 let snapshot = self.snapshot(cx);
10048 let scroll_position = snapshot.scroll_position();
10049 let scroll_left = scroll_position.x * em_width;
10050
10051 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10052 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10053 + self.gutter_width;
10054 let y = line_height * (start.row() as f32 - scroll_position.y);
10055
10056 Some(Bounds {
10057 origin: element_bounds.origin + point(x, y),
10058 size: size(em_width, line_height),
10059 })
10060 }
10061}
10062
10063trait SelectionExt {
10064 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10065 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10066 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10067 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10068 -> Range<u32>;
10069}
10070
10071impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10072 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10073 let start = self.start.to_point(buffer);
10074 let end = self.end.to_point(buffer);
10075 if self.reversed {
10076 end..start
10077 } else {
10078 start..end
10079 }
10080 }
10081
10082 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10083 let start = self.start.to_offset(buffer);
10084 let end = self.end.to_offset(buffer);
10085 if self.reversed {
10086 end..start
10087 } else {
10088 start..end
10089 }
10090 }
10091
10092 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10093 let start = self
10094 .start
10095 .to_point(&map.buffer_snapshot)
10096 .to_display_point(map);
10097 let end = self
10098 .end
10099 .to_point(&map.buffer_snapshot)
10100 .to_display_point(map);
10101 if self.reversed {
10102 end..start
10103 } else {
10104 start..end
10105 }
10106 }
10107
10108 fn spanned_rows(
10109 &self,
10110 include_end_if_at_line_start: bool,
10111 map: &DisplaySnapshot,
10112 ) -> Range<u32> {
10113 let start = self.start.to_point(&map.buffer_snapshot);
10114 let mut end = self.end.to_point(&map.buffer_snapshot);
10115 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10116 end.row -= 1;
10117 }
10118
10119 let buffer_start = map.prev_line_boundary(start).0;
10120 let buffer_end = map.next_line_boundary(end).0;
10121 buffer_start.row..buffer_end.row + 1
10122 }
10123}
10124
10125impl<T: InvalidationRegion> InvalidationStack<T> {
10126 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10127 where
10128 S: Clone + ToOffset,
10129 {
10130 while let Some(region) = self.last() {
10131 let all_selections_inside_invalidation_ranges =
10132 if selections.len() == region.ranges().len() {
10133 selections
10134 .iter()
10135 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10136 .all(|(selection, invalidation_range)| {
10137 let head = selection.head().to_offset(buffer);
10138 invalidation_range.start <= head && invalidation_range.end >= head
10139 })
10140 } else {
10141 false
10142 };
10143
10144 if all_selections_inside_invalidation_ranges {
10145 break;
10146 } else {
10147 self.pop();
10148 }
10149 }
10150 }
10151}
10152
10153impl<T> Default for InvalidationStack<T> {
10154 fn default() -> Self {
10155 Self(Default::default())
10156 }
10157}
10158
10159impl<T> Deref for InvalidationStack<T> {
10160 type Target = Vec<T>;
10161
10162 fn deref(&self) -> &Self::Target {
10163 &self.0
10164 }
10165}
10166
10167impl<T> DerefMut for InvalidationStack<T> {
10168 fn deref_mut(&mut self) -> &mut Self::Target {
10169 &mut self.0
10170 }
10171}
10172
10173impl InvalidationRegion for SnippetState {
10174 fn ranges(&self) -> &[Range<Anchor>] {
10175 &self.ranges[self.active_index]
10176 }
10177}
10178
10179pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10180 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10181
10182 Arc::new(move |cx: &mut BlockContext| {
10183 let group_id: SharedString = cx.block_id.to_string().into();
10184
10185 let mut text_style = cx.text_style().clone();
10186 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10187
10188 h_flex()
10189 .id(cx.block_id)
10190 .group(group_id.clone())
10191 .relative()
10192 .size_full()
10193 .pl(cx.gutter_dimensions.width)
10194 .w(cx.max_width + cx.gutter_dimensions.width)
10195 .child(
10196 div()
10197 .flex()
10198 .w(cx.anchor_x - cx.gutter_dimensions.width)
10199 .flex_shrink(),
10200 )
10201 .child(div().flex().flex_shrink_0().child(
10202 StyledText::new(text_without_backticks.clone()).with_highlights(
10203 &text_style,
10204 code_ranges.iter().map(|range| {
10205 (
10206 range.clone(),
10207 HighlightStyle {
10208 font_weight: Some(FontWeight::BOLD),
10209 ..Default::default()
10210 },
10211 )
10212 }),
10213 ),
10214 ))
10215 .child(
10216 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10217 .icon_color(Color::Muted)
10218 .size(ButtonSize::Compact)
10219 .style(ButtonStyle::Transparent)
10220 .visible_on_hover(group_id)
10221 .on_click({
10222 let message = diagnostic.message.clone();
10223 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10224 })
10225 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10226 )
10227 .into_any_element()
10228 })
10229}
10230
10231pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10232 let mut text_without_backticks = String::new();
10233 let mut code_ranges = Vec::new();
10234
10235 if let Some(source) = &diagnostic.source {
10236 text_without_backticks.push_str(&source);
10237 code_ranges.push(0..source.len());
10238 text_without_backticks.push_str(": ");
10239 }
10240
10241 let mut prev_offset = 0;
10242 let mut in_code_block = false;
10243 for (ix, _) in diagnostic
10244 .message
10245 .match_indices('`')
10246 .chain([(diagnostic.message.len(), "")])
10247 {
10248 let prev_len = text_without_backticks.len();
10249 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10250 prev_offset = ix + 1;
10251 if in_code_block {
10252 code_ranges.push(prev_len..text_without_backticks.len());
10253 in_code_block = false;
10254 } else {
10255 in_code_block = true;
10256 }
10257 }
10258
10259 (text_without_backticks.into(), code_ranges)
10260}
10261
10262fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10263 match (severity, valid) {
10264 (DiagnosticSeverity::ERROR, true) => colors.error,
10265 (DiagnosticSeverity::ERROR, false) => colors.error,
10266 (DiagnosticSeverity::WARNING, true) => colors.warning,
10267 (DiagnosticSeverity::WARNING, false) => colors.warning,
10268 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10269 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10270 (DiagnosticSeverity::HINT, true) => colors.info,
10271 (DiagnosticSeverity::HINT, false) => colors.info,
10272 _ => colors.ignored,
10273 }
10274}
10275
10276pub fn styled_runs_for_code_label<'a>(
10277 label: &'a CodeLabel,
10278 syntax_theme: &'a theme::SyntaxTheme,
10279) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10280 let fade_out = HighlightStyle {
10281 fade_out: Some(0.35),
10282 ..Default::default()
10283 };
10284
10285 let mut prev_end = label.filter_range.end;
10286 label
10287 .runs
10288 .iter()
10289 .enumerate()
10290 .flat_map(move |(ix, (range, highlight_id))| {
10291 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10292 style
10293 } else {
10294 return Default::default();
10295 };
10296 let mut muted_style = style;
10297 muted_style.highlight(fade_out);
10298
10299 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10300 if range.start >= label.filter_range.end {
10301 if range.start > prev_end {
10302 runs.push((prev_end..range.start, fade_out));
10303 }
10304 runs.push((range.clone(), muted_style));
10305 } else if range.end <= label.filter_range.end {
10306 runs.push((range.clone(), style));
10307 } else {
10308 runs.push((range.start..label.filter_range.end, style));
10309 runs.push((label.filter_range.end..range.end, muted_style));
10310 }
10311 prev_end = cmp::max(prev_end, range.end);
10312
10313 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10314 runs.push((prev_end..label.text.len(), fade_out));
10315 }
10316
10317 runs
10318 })
10319}
10320
10321pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10322 let mut index = 0;
10323 let mut codepoints = text.char_indices().peekable();
10324
10325 std::iter::from_fn(move || {
10326 let start_index = index;
10327 while let Some((new_index, codepoint)) = codepoints.next() {
10328 index = new_index + codepoint.len_utf8();
10329 let current_upper = codepoint.is_uppercase();
10330 let next_upper = codepoints
10331 .peek()
10332 .map(|(_, c)| c.is_uppercase())
10333 .unwrap_or(false);
10334
10335 if !current_upper && next_upper {
10336 return Some(&text[start_index..index]);
10337 }
10338 }
10339
10340 index = text.len();
10341 if start_index < text.len() {
10342 return Some(&text[start_index..]);
10343 }
10344 None
10345 })
10346 .flat_map(|word| word.split_inclusive('_'))
10347 .flat_map(|word| word.split_inclusive('-'))
10348}
10349
10350trait RangeToAnchorExt {
10351 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10352}
10353
10354impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10355 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10356 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10357 }
10358}