1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27mod inline_completion_provider;
28pub mod items;
29mod mouse_context_menu;
30pub mod movement;
31mod persistence;
32mod rust_analyzer_ext;
33pub mod scroll;
34mod selections_collection;
35
36#[cfg(test)]
37mod editor_tests;
38#[cfg(any(test, feature = "test-support"))]
39pub mod test;
40use ::git::diff::{DiffHunk, DiffHunkStatus};
41pub(crate) use actions::*;
42use aho_corasick::AhoCorasick;
43use anyhow::{anyhow, Context as _, Result};
44use blink_manager::BlinkManager;
45use client::{Collaborator, ParticipantIndex};
46use clock::ReplicaId;
47use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
48use convert_case::{Case, Casing};
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{
55 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
56};
57use futures::FutureExt;
58use fuzzy::{StringMatch, StringMatchCandidate};
59use git::diff_hunk_to_display;
60use gpui::{
61 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
62 AnyElement, AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds,
63 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView,
64 FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model,
65 MouseButton, ParentElement, Pixels, Render, SharedString, StrikethroughStyle, Styled,
66 StyledText, Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View,
67 ViewContext, ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
68};
69use highlight_matching_bracket::refresh_matching_bracket_highlights;
70use hover_popover::{hide_hover, HoverState};
71use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
72pub use inline_completion_provider::*;
73pub use items::MAX_TAB_TITLE_LEN;
74use itertools::Itertools;
75use language::{char_kind, CharKind};
76use language::{
77 language_settings::{self, all_language_settings, InlayHintSettings},
78 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
79 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
80 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
81};
82
83use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
84use lsp::{DiagnosticSeverity, LanguageServerId};
85use mouse_context_menu::MouseContextMenu;
86use movement::TextLayoutDetails;
87use multi_buffer::ToOffsetUtf16;
88pub use multi_buffer::{
89 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
90 ToPoint,
91};
92use ordered_float::OrderedFloat;
93use parking_lot::{Mutex, RwLock};
94use project::project_settings::{GitGutterSetting, ProjectSettings};
95use project::Item;
96use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
97use rand::prelude::*;
98use rpc::proto::*;
99use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
100use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
101use serde::{Deserialize, Serialize};
102use settings::{Settings, SettingsStore};
103use smallvec::SmallVec;
104use snippet::Snippet;
105use std::ops::Not as _;
106use std::{
107 any::TypeId,
108 borrow::Cow,
109 cmp::{self, Ordering, Reverse},
110 mem,
111 num::NonZeroU32,
112 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
113 path::Path,
114 sync::Arc,
115 time::{Duration, Instant},
116};
117pub use sum_tree::Bias;
118use text::{BufferId, OffsetUtf16, Rope};
119use theme::{
120 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
121 ThemeColors, ThemeSettings,
122};
123use ui::{
124 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
125 Tooltip,
126};
127use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
128use workspace::Toast;
129use workspace::{
130 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
131};
132
133use crate::hover_links::find_url;
134
135const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
136const MAX_LINE_LEN: usize = 1024;
137const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
138const MAX_SELECTION_HISTORY_LEN: usize = 1024;
139pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
140#[doc(hidden)]
141pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
142#[doc(hidden)]
143pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
144
145pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
146
147pub fn render_parsed_markdown(
148 element_id: impl Into<ElementId>,
149 parsed: &language::ParsedMarkdown,
150 editor_style: &EditorStyle,
151 workspace: Option<WeakView<Workspace>>,
152 cx: &mut ViewContext<Editor>,
153) -> InteractiveText {
154 let code_span_background_color = cx
155 .theme()
156 .colors()
157 .editor_document_highlight_read_background;
158
159 let highlights = gpui::combine_highlights(
160 parsed.highlights.iter().filter_map(|(range, highlight)| {
161 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
162 Some((range.clone(), highlight))
163 }),
164 parsed
165 .regions
166 .iter()
167 .zip(&parsed.region_ranges)
168 .filter_map(|(region, range)| {
169 if region.code {
170 Some((
171 range.clone(),
172 HighlightStyle {
173 background_color: Some(code_span_background_color),
174 ..Default::default()
175 },
176 ))
177 } else {
178 None
179 }
180 }),
181 );
182
183 let mut links = Vec::new();
184 let mut link_ranges = Vec::new();
185 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
186 if let Some(link) = region.link.clone() {
187 links.push(link);
188 link_ranges.push(range.clone());
189 }
190 }
191
192 InteractiveText::new(
193 element_id,
194 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
195 )
196 .on_click(link_ranges, move |clicked_range_ix, cx| {
197 match &links[clicked_range_ix] {
198 markdown::Link::Web { url } => cx.open_url(url),
199 markdown::Link::Path { path } => {
200 if let Some(workspace) = &workspace {
201 _ = workspace.update(cx, |workspace, cx| {
202 workspace.open_abs_path(path.clone(), false, cx).detach();
203 });
204 }
205 }
206 }
207 })
208}
209
210#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
211pub(crate) enum InlayId {
212 Suggestion(usize),
213 Hint(usize),
214}
215
216impl InlayId {
217 fn id(&self) -> usize {
218 match self {
219 Self::Suggestion(id) => *id,
220 Self::Hint(id) => *id,
221 }
222 }
223}
224
225enum DocumentHighlightRead {}
226enum DocumentHighlightWrite {}
227enum InputComposition {}
228
229#[derive(Copy, Clone, PartialEq, Eq)]
230pub enum Direction {
231 Prev,
232 Next,
233}
234
235pub fn init_settings(cx: &mut AppContext) {
236 EditorSettings::register(cx);
237}
238
239pub fn init(cx: &mut AppContext) {
240 init_settings(cx);
241
242 workspace::register_project_item::<Editor>(cx);
243 workspace::register_followable_item::<Editor>(cx);
244 workspace::register_deserializable_item::<Editor>(cx);
245 cx.observe_new_views(
246 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
247 workspace.register_action(Editor::new_file);
248 workspace.register_action(Editor::new_file_in_direction);
249 },
250 )
251 .detach();
252
253 cx.on_action(move |_: &workspace::NewFile, cx| {
254 let app_state = workspace::AppState::global(cx);
255 if let Some(app_state) = app_state.upgrade() {
256 workspace::open_new(app_state, cx, |workspace, cx| {
257 Editor::new_file(workspace, &Default::default(), cx)
258 })
259 .detach();
260 }
261 });
262 cx.on_action(move |_: &workspace::NewWindow, cx| {
263 let app_state = workspace::AppState::global(cx);
264 if let Some(app_state) = app_state.upgrade() {
265 workspace::open_new(app_state, cx, |workspace, cx| {
266 Editor::new_file(workspace, &Default::default(), cx)
267 })
268 .detach();
269 }
270 });
271}
272
273trait InvalidationRegion {
274 fn ranges(&self) -> &[Range<Anchor>];
275}
276
277#[derive(Clone, Debug, PartialEq)]
278pub enum SelectPhase {
279 Begin {
280 position: DisplayPoint,
281 add: bool,
282 click_count: usize,
283 },
284 BeginColumnar {
285 position: DisplayPoint,
286 goal_column: u32,
287 },
288 Extend {
289 position: DisplayPoint,
290 click_count: usize,
291 },
292 Update {
293 position: DisplayPoint,
294 goal_column: u32,
295 scroll_delta: gpui::Point<f32>,
296 },
297 End,
298}
299
300#[derive(Clone, Debug)]
301pub enum SelectMode {
302 Character,
303 Word(Range<Anchor>),
304 Line(Range<Anchor>),
305 All,
306}
307
308#[derive(Copy, Clone, PartialEq, Eq, Debug)]
309pub enum EditorMode {
310 SingleLine,
311 AutoHeight { max_lines: usize },
312 Full,
313}
314
315#[derive(Clone, Debug)]
316pub enum SoftWrap {
317 None,
318 EditorWidth,
319 Column(u32),
320}
321
322#[derive(Clone)]
323pub struct EditorStyle {
324 pub background: Hsla,
325 pub local_player: PlayerColor,
326 pub text: TextStyle,
327 pub scrollbar_width: Pixels,
328 pub syntax: Arc<SyntaxTheme>,
329 pub status: StatusColors,
330 pub inlay_hints_style: HighlightStyle,
331 pub suggestions_style: HighlightStyle,
332}
333
334impl Default for EditorStyle {
335 fn default() -> Self {
336 Self {
337 background: Hsla::default(),
338 local_player: PlayerColor::default(),
339 text: TextStyle::default(),
340 scrollbar_width: Pixels::default(),
341 syntax: Default::default(),
342 // HACK: Status colors don't have a real default.
343 // We should look into removing the status colors from the editor
344 // style and retrieve them directly from the theme.
345 status: StatusColors::dark(),
346 inlay_hints_style: HighlightStyle::default(),
347 suggestions_style: HighlightStyle::default(),
348 }
349 }
350}
351
352type CompletionId = usize;
353
354// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
355// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
356
357type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
358
359/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
360///
361/// See the [module level documentation](self) for more information.
362pub struct Editor {
363 focus_handle: FocusHandle,
364 /// The text buffer being edited
365 buffer: Model<MultiBuffer>,
366 /// Map of how text in the buffer should be displayed.
367 /// Handles soft wraps, folds, fake inlay text insertions, etc.
368 pub display_map: Model<DisplayMap>,
369 pub selections: SelectionsCollection,
370 pub scroll_manager: ScrollManager,
371 columnar_selection_tail: Option<Anchor>,
372 add_selections_state: Option<AddSelectionsState>,
373 select_next_state: Option<SelectNextState>,
374 select_prev_state: Option<SelectNextState>,
375 selection_history: SelectionHistory,
376 autoclose_regions: Vec<AutocloseRegion>,
377 snippet_stack: InvalidationStack<SnippetState>,
378 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
379 ime_transaction: Option<TransactionId>,
380 active_diagnostics: Option<ActiveDiagnosticGroup>,
381 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
382 project: Option<Model<Project>>,
383 completion_provider: Option<Box<dyn CompletionProvider>>,
384 collaboration_hub: Option<Box<dyn CollaborationHub>>,
385 blink_manager: Model<BlinkManager>,
386 show_cursor_names: bool,
387 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
388 pub show_local_selections: bool,
389 mode: EditorMode,
390 show_breadcrumbs: bool,
391 show_gutter: bool,
392 show_wrap_guides: Option<bool>,
393 placeholder_text: Option<Arc<str>>,
394 highlight_order: usize,
395 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
396 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
397 nav_history: Option<ItemNavHistory>,
398 context_menu: RwLock<Option<ContextMenu>>,
399 mouse_context_menu: Option<MouseContextMenu>,
400 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
401 find_all_references_task_sources: Vec<Anchor>,
402 next_completion_id: CompletionId,
403 completion_documentation_pre_resolve_debounce: DebouncedDelay,
404 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
405 code_actions_task: Option<Task<()>>,
406 document_highlights_task: Option<Task<()>>,
407 pending_rename: Option<RenameState>,
408 searchable: bool,
409 cursor_shape: CursorShape,
410 collapse_matches: bool,
411 autoindent_mode: Option<AutoindentMode>,
412 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
413 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
414 input_enabled: bool,
415 use_modal_editing: bool,
416 read_only: bool,
417 leader_peer_id: Option<PeerId>,
418 remote_id: Option<ViewId>,
419 hover_state: HoverState,
420 gutter_hovered: bool,
421 hovered_link_state: Option<HoveredLinkState>,
422 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
423 active_inline_completion: Option<Inlay>,
424 show_inline_completions: bool,
425 inlay_hint_cache: InlayHintCache,
426 next_inlay_id: usize,
427 _subscriptions: Vec<Subscription>,
428 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
429 gutter_width: Pixels,
430 pub vim_replace_map: HashMap<Range<usize>, String>,
431 style: Option<EditorStyle>,
432 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
433 use_autoclose: bool,
434 auto_replace_emoji_shortcode: bool,
435 custom_context_menu: Option<
436 Box<
437 dyn 'static
438 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
439 >,
440 >,
441}
442
443pub struct EditorSnapshot {
444 pub mode: EditorMode,
445 show_gutter: bool,
446 pub display_snapshot: DisplaySnapshot,
447 pub placeholder_text: Option<Arc<str>>,
448 is_focused: bool,
449 scroll_anchor: ScrollAnchor,
450 ongoing_scroll: OngoingScroll,
451}
452
453pub struct GutterDimensions {
454 pub left_padding: Pixels,
455 pub right_padding: Pixels,
456 pub width: Pixels,
457 pub margin: Pixels,
458}
459
460impl Default for GutterDimensions {
461 fn default() -> Self {
462 Self {
463 left_padding: Pixels::ZERO,
464 right_padding: Pixels::ZERO,
465 width: Pixels::ZERO,
466 margin: Pixels::ZERO,
467 }
468 }
469}
470
471#[derive(Debug)]
472pub struct RemoteSelection {
473 pub replica_id: ReplicaId,
474 pub selection: Selection<Anchor>,
475 pub cursor_shape: CursorShape,
476 pub peer_id: PeerId,
477 pub line_mode: bool,
478 pub participant_index: Option<ParticipantIndex>,
479 pub user_name: Option<SharedString>,
480}
481
482#[derive(Clone, Debug)]
483struct SelectionHistoryEntry {
484 selections: Arc<[Selection<Anchor>]>,
485 select_next_state: Option<SelectNextState>,
486 select_prev_state: Option<SelectNextState>,
487 add_selections_state: Option<AddSelectionsState>,
488}
489
490enum SelectionHistoryMode {
491 Normal,
492 Undoing,
493 Redoing,
494}
495
496#[derive(Clone, PartialEq, Eq, Hash)]
497struct HoveredCursor {
498 replica_id: u16,
499 selection_id: usize,
500}
501
502impl Default for SelectionHistoryMode {
503 fn default() -> Self {
504 Self::Normal
505 }
506}
507
508#[derive(Default)]
509struct SelectionHistory {
510 #[allow(clippy::type_complexity)]
511 selections_by_transaction:
512 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
513 mode: SelectionHistoryMode,
514 undo_stack: VecDeque<SelectionHistoryEntry>,
515 redo_stack: VecDeque<SelectionHistoryEntry>,
516}
517
518impl SelectionHistory {
519 fn insert_transaction(
520 &mut self,
521 transaction_id: TransactionId,
522 selections: Arc<[Selection<Anchor>]>,
523 ) {
524 self.selections_by_transaction
525 .insert(transaction_id, (selections, None));
526 }
527
528 #[allow(clippy::type_complexity)]
529 fn transaction(
530 &self,
531 transaction_id: TransactionId,
532 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
533 self.selections_by_transaction.get(&transaction_id)
534 }
535
536 #[allow(clippy::type_complexity)]
537 fn transaction_mut(
538 &mut self,
539 transaction_id: TransactionId,
540 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
541 self.selections_by_transaction.get_mut(&transaction_id)
542 }
543
544 fn push(&mut self, entry: SelectionHistoryEntry) {
545 if !entry.selections.is_empty() {
546 match self.mode {
547 SelectionHistoryMode::Normal => {
548 self.push_undo(entry);
549 self.redo_stack.clear();
550 }
551 SelectionHistoryMode::Undoing => self.push_redo(entry),
552 SelectionHistoryMode::Redoing => self.push_undo(entry),
553 }
554 }
555 }
556
557 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
558 if self
559 .undo_stack
560 .back()
561 .map_or(true, |e| e.selections != entry.selections)
562 {
563 self.undo_stack.push_back(entry);
564 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
565 self.undo_stack.pop_front();
566 }
567 }
568 }
569
570 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
571 if self
572 .redo_stack
573 .back()
574 .map_or(true, |e| e.selections != entry.selections)
575 {
576 self.redo_stack.push_back(entry);
577 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
578 self.redo_stack.pop_front();
579 }
580 }
581 }
582}
583
584#[derive(Clone, Debug)]
585struct AddSelectionsState {
586 above: bool,
587 stack: Vec<usize>,
588}
589
590#[derive(Clone)]
591struct SelectNextState {
592 query: AhoCorasick,
593 wordwise: bool,
594 done: bool,
595}
596
597impl std::fmt::Debug for SelectNextState {
598 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
599 f.debug_struct(std::any::type_name::<Self>())
600 .field("wordwise", &self.wordwise)
601 .field("done", &self.done)
602 .finish()
603 }
604}
605
606#[derive(Debug)]
607struct AutocloseRegion {
608 selection_id: usize,
609 range: Range<Anchor>,
610 pair: BracketPair,
611}
612
613#[derive(Debug)]
614struct SnippetState {
615 ranges: Vec<Vec<Range<Anchor>>>,
616 active_index: usize,
617}
618
619#[doc(hidden)]
620pub struct RenameState {
621 pub range: Range<Anchor>,
622 pub old_name: Arc<str>,
623 pub editor: View<Editor>,
624 block_id: BlockId,
625}
626
627struct InvalidationStack<T>(Vec<T>);
628
629struct RegisteredInlineCompletionProvider {
630 provider: Arc<dyn InlineCompletionProviderHandle>,
631 _subscription: Subscription,
632}
633
634enum ContextMenu {
635 Completions(CompletionsMenu),
636 CodeActions(CodeActionsMenu),
637}
638
639impl ContextMenu {
640 fn select_first(
641 &mut self,
642 project: Option<&Model<Project>>,
643 cx: &mut ViewContext<Editor>,
644 ) -> bool {
645 if self.visible() {
646 match self {
647 ContextMenu::Completions(menu) => menu.select_first(project, cx),
648 ContextMenu::CodeActions(menu) => menu.select_first(cx),
649 }
650 true
651 } else {
652 false
653 }
654 }
655
656 fn select_prev(
657 &mut self,
658 project: Option<&Model<Project>>,
659 cx: &mut ViewContext<Editor>,
660 ) -> bool {
661 if self.visible() {
662 match self {
663 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
664 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
665 }
666 true
667 } else {
668 false
669 }
670 }
671
672 fn select_next(
673 &mut self,
674 project: Option<&Model<Project>>,
675 cx: &mut ViewContext<Editor>,
676 ) -> bool {
677 if self.visible() {
678 match self {
679 ContextMenu::Completions(menu) => menu.select_next(project, cx),
680 ContextMenu::CodeActions(menu) => menu.select_next(cx),
681 }
682 true
683 } else {
684 false
685 }
686 }
687
688 fn select_last(
689 &mut self,
690 project: Option<&Model<Project>>,
691 cx: &mut ViewContext<Editor>,
692 ) -> bool {
693 if self.visible() {
694 match self {
695 ContextMenu::Completions(menu) => menu.select_last(project, cx),
696 ContextMenu::CodeActions(menu) => menu.select_last(cx),
697 }
698 true
699 } else {
700 false
701 }
702 }
703
704 fn visible(&self) -> bool {
705 match self {
706 ContextMenu::Completions(menu) => menu.visible(),
707 ContextMenu::CodeActions(menu) => menu.visible(),
708 }
709 }
710
711 fn render(
712 &self,
713 cursor_position: DisplayPoint,
714 style: &EditorStyle,
715 max_height: Pixels,
716 workspace: Option<WeakView<Workspace>>,
717 cx: &mut ViewContext<Editor>,
718 ) -> (DisplayPoint, AnyElement) {
719 match self {
720 ContextMenu::Completions(menu) => (
721 cursor_position,
722 menu.render(style, max_height, workspace, cx),
723 ),
724 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
725 }
726 }
727}
728
729#[derive(Clone)]
730struct CompletionsMenu {
731 id: CompletionId,
732 initial_position: Anchor,
733 buffer: Model<Buffer>,
734 completions: Arc<RwLock<Box<[Completion]>>>,
735 match_candidates: Arc<[StringMatchCandidate]>,
736 matches: Arc<[StringMatch]>,
737 selected_item: usize,
738 scroll_handle: UniformListScrollHandle,
739 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
740}
741
742impl CompletionsMenu {
743 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
744 self.selected_item = 0;
745 self.scroll_handle.scroll_to_item(self.selected_item);
746 self.attempt_resolve_selected_completion_documentation(project, cx);
747 cx.notify();
748 }
749
750 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
751 if self.selected_item > 0 {
752 self.selected_item -= 1;
753 } else {
754 self.selected_item = self.matches.len() - 1;
755 }
756 self.scroll_handle.scroll_to_item(self.selected_item);
757 self.attempt_resolve_selected_completion_documentation(project, cx);
758 cx.notify();
759 }
760
761 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
762 if self.selected_item + 1 < self.matches.len() {
763 self.selected_item += 1;
764 } else {
765 self.selected_item = 0;
766 }
767 self.scroll_handle.scroll_to_item(self.selected_item);
768 self.attempt_resolve_selected_completion_documentation(project, cx);
769 cx.notify();
770 }
771
772 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
773 self.selected_item = self.matches.len() - 1;
774 self.scroll_handle.scroll_to_item(self.selected_item);
775 self.attempt_resolve_selected_completion_documentation(project, cx);
776 cx.notify();
777 }
778
779 fn pre_resolve_completion_documentation(
780 completions: Arc<RwLock<Box<[Completion]>>>,
781 matches: Arc<[StringMatch]>,
782 editor: &Editor,
783 cx: &mut ViewContext<Editor>,
784 ) -> Task<()> {
785 let settings = EditorSettings::get_global(cx);
786 if !settings.show_completion_documentation {
787 return Task::ready(());
788 }
789
790 let Some(provider) = editor.completion_provider.as_ref() else {
791 return Task::ready(());
792 };
793
794 let resolve_task = provider.resolve_completions(
795 matches.iter().map(|m| m.candidate_id).collect(),
796 completions.clone(),
797 cx,
798 );
799
800 return cx.spawn(move |this, mut cx| async move {
801 if let Some(true) = resolve_task.await.log_err() {
802 this.update(&mut cx, |_, cx| cx.notify()).ok();
803 }
804 });
805 }
806
807 fn attempt_resolve_selected_completion_documentation(
808 &mut self,
809 project: Option<&Model<Project>>,
810 cx: &mut ViewContext<Editor>,
811 ) {
812 let settings = EditorSettings::get_global(cx);
813 if !settings.show_completion_documentation {
814 return;
815 }
816
817 let completion_index = self.matches[self.selected_item].candidate_id;
818 let Some(project) = project else {
819 return;
820 };
821
822 let resolve_task = project.update(cx, |project, cx| {
823 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
824 });
825
826 let delay_ms =
827 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
828 let delay = Duration::from_millis(delay_ms);
829
830 self.selected_completion_documentation_resolve_debounce
831 .lock()
832 .fire_new(delay, cx, |_, cx| {
833 cx.spawn(move |this, mut cx| async move {
834 if let Some(true) = resolve_task.await.log_err() {
835 this.update(&mut cx, |_, cx| cx.notify()).ok();
836 }
837 })
838 });
839 }
840
841 fn visible(&self) -> bool {
842 !self.matches.is_empty()
843 }
844
845 fn render(
846 &self,
847 style: &EditorStyle,
848 max_height: Pixels,
849 workspace: Option<WeakView<Workspace>>,
850 cx: &mut ViewContext<Editor>,
851 ) -> AnyElement {
852 let settings = EditorSettings::get_global(cx);
853 let show_completion_documentation = settings.show_completion_documentation;
854
855 let widest_completion_ix = self
856 .matches
857 .iter()
858 .enumerate()
859 .max_by_key(|(_, mat)| {
860 let completions = self.completions.read();
861 let completion = &completions[mat.candidate_id];
862 let documentation = &completion.documentation;
863
864 let mut len = completion.label.text.chars().count();
865 if let Some(Documentation::SingleLine(text)) = documentation {
866 if show_completion_documentation {
867 len += text.chars().count();
868 }
869 }
870
871 len
872 })
873 .map(|(ix, _)| ix);
874
875 let completions = self.completions.clone();
876 let matches = self.matches.clone();
877 let selected_item = self.selected_item;
878 let style = style.clone();
879
880 let multiline_docs = if show_completion_documentation {
881 let mat = &self.matches[selected_item];
882 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
883 Some(Documentation::MultiLinePlainText(text)) => {
884 Some(div().child(SharedString::from(text.clone())))
885 }
886 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
887 Some(div().child(render_parsed_markdown(
888 "completions_markdown",
889 parsed,
890 &style,
891 workspace,
892 cx,
893 )))
894 }
895 _ => None,
896 };
897 multiline_docs.map(|div| {
898 div.id("multiline_docs")
899 .max_h(max_height)
900 .flex_1()
901 .px_1p5()
902 .py_1()
903 .min_w(px(260.))
904 .max_w(px(640.))
905 .w(px(500.))
906 .overflow_y_scroll()
907 .occlude()
908 })
909 } else {
910 None
911 };
912
913 let list = uniform_list(
914 cx.view().clone(),
915 "completions",
916 matches.len(),
917 move |_editor, range, cx| {
918 let start_ix = range.start;
919 let completions_guard = completions.read();
920
921 matches[range]
922 .iter()
923 .enumerate()
924 .map(|(ix, mat)| {
925 let item_ix = start_ix + ix;
926 let candidate_id = mat.candidate_id;
927 let completion = &completions_guard[candidate_id];
928
929 let documentation = if show_completion_documentation {
930 &completion.documentation
931 } else {
932 &None
933 };
934
935 let highlights = gpui::combine_highlights(
936 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
937 styled_runs_for_code_label(&completion.label, &style.syntax).map(
938 |(range, mut highlight)| {
939 // Ignore font weight for syntax highlighting, as we'll use it
940 // for fuzzy matches.
941 highlight.font_weight = None;
942
943 if completion.lsp_completion.deprecated.unwrap_or(false) {
944 highlight.strikethrough = Some(StrikethroughStyle {
945 thickness: 1.0.into(),
946 ..Default::default()
947 });
948 highlight.color = Some(cx.theme().colors().text_muted);
949 }
950
951 (range, highlight)
952 },
953 ),
954 );
955 let completion_label = StyledText::new(completion.label.text.clone())
956 .with_highlights(&style.text, highlights);
957 let documentation_label =
958 if let Some(Documentation::SingleLine(text)) = documentation {
959 if text.trim().is_empty() {
960 None
961 } else {
962 Some(
963 h_flex().ml_4().child(
964 Label::new(text.clone())
965 .size(LabelSize::Small)
966 .color(Color::Muted),
967 ),
968 )
969 }
970 } else {
971 None
972 };
973
974 div().min_w(px(220.)).max_w(px(540.)).child(
975 ListItem::new(mat.candidate_id)
976 .inset(true)
977 .selected(item_ix == selected_item)
978 .on_click(cx.listener(move |editor, _event, cx| {
979 cx.stop_propagation();
980 if let Some(task) = editor.confirm_completion(
981 &ConfirmCompletion {
982 item_ix: Some(item_ix),
983 },
984 cx,
985 ) {
986 task.detach_and_log_err(cx)
987 }
988 }))
989 .child(h_flex().overflow_hidden().child(completion_label))
990 .end_slot::<Div>(documentation_label),
991 )
992 })
993 .collect()
994 },
995 )
996 .occlude()
997 .max_h(max_height)
998 .track_scroll(self.scroll_handle.clone())
999 .with_width_from_item(widest_completion_ix);
1000
1001 Popover::new()
1002 .child(list)
1003 .when_some(multiline_docs, |popover, multiline_docs| {
1004 popover.aside(multiline_docs)
1005 })
1006 .into_any_element()
1007 }
1008
1009 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1010 let mut matches = if let Some(query) = query {
1011 fuzzy::match_strings(
1012 &self.match_candidates,
1013 query,
1014 query.chars().any(|c| c.is_uppercase()),
1015 100,
1016 &Default::default(),
1017 executor,
1018 )
1019 .await
1020 } else {
1021 self.match_candidates
1022 .iter()
1023 .enumerate()
1024 .map(|(candidate_id, candidate)| StringMatch {
1025 candidate_id,
1026 score: Default::default(),
1027 positions: Default::default(),
1028 string: candidate.string.clone(),
1029 })
1030 .collect()
1031 };
1032
1033 // Remove all candidates where the query's start does not match the start of any word in the candidate
1034 if let Some(query) = query {
1035 if let Some(query_start) = query.chars().next() {
1036 matches.retain(|string_match| {
1037 split_words(&string_match.string).any(|word| {
1038 // Check that the first codepoint of the word as lowercase matches the first
1039 // codepoint of the query as lowercase
1040 word.chars()
1041 .flat_map(|codepoint| codepoint.to_lowercase())
1042 .zip(query_start.to_lowercase())
1043 .all(|(word_cp, query_cp)| word_cp == query_cp)
1044 })
1045 });
1046 }
1047 }
1048
1049 let completions = self.completions.read();
1050 matches.sort_unstable_by_key(|mat| {
1051 // We do want to strike a balance here between what the language server tells us
1052 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1053 // `Creat` and there is a local variable called `CreateComponent`).
1054 // So what we do is: we bucket all matches into two buckets
1055 // - Strong matches
1056 // - Weak matches
1057 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1058 // and the Weak matches are the rest.
1059 //
1060 // For the strong matches, we sort by the language-servers score first and for the weak
1061 // matches, we prefer our fuzzy finder first.
1062 //
1063 // The thinking behind that: it's useless to take the sort_text the language-server gives
1064 // us into account when it's obviously a bad match.
1065
1066 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1067 enum MatchScore<'a> {
1068 Strong {
1069 sort_text: Option<&'a str>,
1070 score: Reverse<OrderedFloat<f64>>,
1071 sort_key: (usize, &'a str),
1072 },
1073 Weak {
1074 score: Reverse<OrderedFloat<f64>>,
1075 sort_text: Option<&'a str>,
1076 sort_key: (usize, &'a str),
1077 },
1078 }
1079
1080 let completion = &completions[mat.candidate_id];
1081 let sort_key = completion.sort_key();
1082 let sort_text = completion.lsp_completion.sort_text.as_deref();
1083 let score = Reverse(OrderedFloat(mat.score));
1084
1085 if mat.score >= 0.2 {
1086 MatchScore::Strong {
1087 sort_text,
1088 score,
1089 sort_key,
1090 }
1091 } else {
1092 MatchScore::Weak {
1093 score,
1094 sort_text,
1095 sort_key,
1096 }
1097 }
1098 });
1099
1100 for mat in &mut matches {
1101 let completion = &completions[mat.candidate_id];
1102 mat.string = completion.label.text.clone();
1103 for position in &mut mat.positions {
1104 *position += completion.label.filter_range.start;
1105 }
1106 }
1107 drop(completions);
1108
1109 self.matches = matches.into();
1110 self.selected_item = 0;
1111 }
1112}
1113
1114#[derive(Clone)]
1115struct CodeActionsMenu {
1116 actions: Arc<[CodeAction]>,
1117 buffer: Model<Buffer>,
1118 selected_item: usize,
1119 scroll_handle: UniformListScrollHandle,
1120 deployed_from_indicator: bool,
1121}
1122
1123impl CodeActionsMenu {
1124 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1125 self.selected_item = 0;
1126 self.scroll_handle.scroll_to_item(self.selected_item);
1127 cx.notify()
1128 }
1129
1130 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1131 if self.selected_item > 0 {
1132 self.selected_item -= 1;
1133 } else {
1134 self.selected_item = self.actions.len() - 1;
1135 }
1136 self.scroll_handle.scroll_to_item(self.selected_item);
1137 cx.notify();
1138 }
1139
1140 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1141 if self.selected_item + 1 < self.actions.len() {
1142 self.selected_item += 1;
1143 } else {
1144 self.selected_item = 0;
1145 }
1146 self.scroll_handle.scroll_to_item(self.selected_item);
1147 cx.notify();
1148 }
1149
1150 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1151 self.selected_item = self.actions.len() - 1;
1152 self.scroll_handle.scroll_to_item(self.selected_item);
1153 cx.notify()
1154 }
1155
1156 fn visible(&self) -> bool {
1157 !self.actions.is_empty()
1158 }
1159
1160 fn render(
1161 &self,
1162 mut cursor_position: DisplayPoint,
1163 _style: &EditorStyle,
1164 max_height: Pixels,
1165 cx: &mut ViewContext<Editor>,
1166 ) -> (DisplayPoint, AnyElement) {
1167 let actions = self.actions.clone();
1168 let selected_item = self.selected_item;
1169
1170 let element = uniform_list(
1171 cx.view().clone(),
1172 "code_actions_menu",
1173 self.actions.len(),
1174 move |_this, range, cx| {
1175 actions[range.clone()]
1176 .iter()
1177 .enumerate()
1178 .map(|(ix, action)| {
1179 let item_ix = range.start + ix;
1180 let selected = selected_item == item_ix;
1181 let colors = cx.theme().colors();
1182 div()
1183 .px_2()
1184 .text_color(colors.text)
1185 .when(selected, |style| {
1186 style
1187 .bg(colors.element_active)
1188 .text_color(colors.text_accent)
1189 })
1190 .hover(|style| {
1191 style
1192 .bg(colors.element_hover)
1193 .text_color(colors.text_accent)
1194 })
1195 .on_mouse_down(
1196 MouseButton::Left,
1197 cx.listener(move |editor, _, cx| {
1198 cx.stop_propagation();
1199 if let Some(task) = editor.confirm_code_action(
1200 &ConfirmCodeAction {
1201 item_ix: Some(item_ix),
1202 },
1203 cx,
1204 ) {
1205 task.detach_and_log_err(cx)
1206 }
1207 }),
1208 )
1209 .whitespace_nowrap()
1210 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1211 .child(SharedString::from(action.lsp_action.title.clone()))
1212 })
1213 .collect()
1214 },
1215 )
1216 .elevation_1(cx)
1217 .px_2()
1218 .py_1()
1219 .max_h(max_height)
1220 .occlude()
1221 .track_scroll(self.scroll_handle.clone())
1222 .with_width_from_item(
1223 self.actions
1224 .iter()
1225 .enumerate()
1226 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1227 .map(|(ix, _)| ix),
1228 )
1229 .into_any_element();
1230
1231 if self.deployed_from_indicator {
1232 *cursor_position.column_mut() = 0;
1233 }
1234
1235 (cursor_position, element)
1236 }
1237}
1238
1239#[derive(Debug)]
1240struct ActiveDiagnosticGroup {
1241 primary_range: Range<Anchor>,
1242 primary_message: String,
1243 blocks: HashMap<BlockId, Diagnostic>,
1244 is_valid: bool,
1245}
1246
1247#[derive(Serialize, Deserialize)]
1248pub struct ClipboardSelection {
1249 pub len: usize,
1250 pub is_entire_line: bool,
1251 pub first_line_indent: u32,
1252}
1253
1254#[derive(Debug)]
1255pub(crate) struct NavigationData {
1256 cursor_anchor: Anchor,
1257 cursor_position: Point,
1258 scroll_anchor: ScrollAnchor,
1259 scroll_top_row: u32,
1260}
1261
1262enum GotoDefinitionKind {
1263 Symbol,
1264 Type,
1265 Implementation,
1266}
1267
1268#[derive(Debug, Clone)]
1269enum InlayHintRefreshReason {
1270 Toggle(bool),
1271 SettingsChange(InlayHintSettings),
1272 NewLinesShown,
1273 BufferEdited(HashSet<Arc<Language>>),
1274 RefreshRequested,
1275 ExcerptsRemoved(Vec<ExcerptId>),
1276}
1277
1278impl InlayHintRefreshReason {
1279 fn description(&self) -> &'static str {
1280 match self {
1281 Self::Toggle(_) => "toggle",
1282 Self::SettingsChange(_) => "settings change",
1283 Self::NewLinesShown => "new lines shown",
1284 Self::BufferEdited(_) => "buffer edited",
1285 Self::RefreshRequested => "refresh requested",
1286 Self::ExcerptsRemoved(_) => "excerpts removed",
1287 }
1288 }
1289}
1290
1291impl Editor {
1292 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1293 let buffer = cx.new_model(|cx| {
1294 Buffer::new(
1295 0,
1296 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1297 String::new(),
1298 )
1299 });
1300 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1301 Self::new(EditorMode::SingleLine, buffer, None, cx)
1302 }
1303
1304 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1305 let buffer = cx.new_model(|cx| {
1306 Buffer::new(
1307 0,
1308 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1309 String::new(),
1310 )
1311 });
1312 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1313 Self::new(EditorMode::Full, buffer, None, cx)
1314 }
1315
1316 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1317 let buffer = cx.new_model(|cx| {
1318 Buffer::new(
1319 0,
1320 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1321 String::new(),
1322 )
1323 });
1324 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1325 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1326 }
1327
1328 pub fn for_buffer(
1329 buffer: Model<Buffer>,
1330 project: Option<Model<Project>>,
1331 cx: &mut ViewContext<Self>,
1332 ) -> Self {
1333 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1334 Self::new(EditorMode::Full, buffer, project, cx)
1335 }
1336
1337 pub fn for_multibuffer(
1338 buffer: Model<MultiBuffer>,
1339 project: Option<Model<Project>>,
1340 cx: &mut ViewContext<Self>,
1341 ) -> Self {
1342 Self::new(EditorMode::Full, buffer, project, cx)
1343 }
1344
1345 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1346 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1347 self.display_map.update(cx, |display_map, cx| {
1348 let snapshot = display_map.snapshot(cx);
1349 clone.display_map.update(cx, |display_map, cx| {
1350 display_map.set_state(&snapshot, cx);
1351 });
1352 });
1353 clone.selections.clone_state(&self.selections);
1354 clone.scroll_manager.clone_state(&self.scroll_manager);
1355 clone.searchable = self.searchable;
1356 clone
1357 }
1358
1359 fn new(
1360 mode: EditorMode,
1361 buffer: Model<MultiBuffer>,
1362 project: Option<Model<Project>>,
1363 cx: &mut ViewContext<Self>,
1364 ) -> Self {
1365 let style = cx.text_style();
1366 let font_size = style.font_size.to_pixels(cx.rem_size());
1367 let display_map = cx.new_model(|cx| {
1368 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1369 });
1370
1371 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1372
1373 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1374
1375 let soft_wrap_mode_override =
1376 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1377
1378 let mut project_subscriptions = Vec::new();
1379 if mode == EditorMode::Full {
1380 if let Some(project) = project.as_ref() {
1381 if buffer.read(cx).is_singleton() {
1382 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1383 cx.emit(EditorEvent::TitleChanged);
1384 }));
1385 }
1386 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1387 if let project::Event::RefreshInlayHints = event {
1388 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1389 };
1390 }));
1391 }
1392 }
1393
1394 let inlay_hint_settings = inlay_hint_settings(
1395 selections.newest_anchor().head(),
1396 &buffer.read(cx).snapshot(cx),
1397 cx,
1398 );
1399
1400 let focus_handle = cx.focus_handle();
1401 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1402 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1403
1404 let mut this = Self {
1405 focus_handle,
1406 buffer: buffer.clone(),
1407 display_map: display_map.clone(),
1408 selections,
1409 scroll_manager: ScrollManager::new(cx),
1410 columnar_selection_tail: None,
1411 add_selections_state: None,
1412 select_next_state: None,
1413 select_prev_state: None,
1414 selection_history: Default::default(),
1415 autoclose_regions: Default::default(),
1416 snippet_stack: Default::default(),
1417 select_larger_syntax_node_stack: Vec::new(),
1418 ime_transaction: Default::default(),
1419 active_diagnostics: None,
1420 soft_wrap_mode_override,
1421 completion_provider: project.clone().map(|project| Box::new(project) as _),
1422 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1423 project,
1424 blink_manager: blink_manager.clone(),
1425 show_local_selections: true,
1426 mode,
1427 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1428 show_gutter: mode == EditorMode::Full,
1429 show_wrap_guides: None,
1430 placeholder_text: None,
1431 highlight_order: 0,
1432 highlighted_rows: HashMap::default(),
1433 background_highlights: Default::default(),
1434 nav_history: None,
1435 context_menu: RwLock::new(None),
1436 mouse_context_menu: None,
1437 completion_tasks: Default::default(),
1438 find_all_references_task_sources: Vec::new(),
1439 next_completion_id: 0,
1440 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1441 next_inlay_id: 0,
1442 available_code_actions: Default::default(),
1443 code_actions_task: Default::default(),
1444 document_highlights_task: Default::default(),
1445 pending_rename: Default::default(),
1446 searchable: true,
1447 cursor_shape: Default::default(),
1448 autoindent_mode: Some(AutoindentMode::EachLine),
1449 collapse_matches: false,
1450 workspace: None,
1451 keymap_context_layers: Default::default(),
1452 input_enabled: true,
1453 use_modal_editing: mode == EditorMode::Full,
1454 read_only: false,
1455 use_autoclose: true,
1456 auto_replace_emoji_shortcode: false,
1457 leader_peer_id: None,
1458 remote_id: None,
1459 hover_state: Default::default(),
1460 hovered_link_state: Default::default(),
1461 inline_completion_provider: None,
1462 active_inline_completion: None,
1463 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1464 gutter_hovered: false,
1465 pixel_position_of_newest_cursor: None,
1466 gutter_width: Default::default(),
1467 style: None,
1468 show_cursor_names: false,
1469 hovered_cursors: Default::default(),
1470 editor_actions: Default::default(),
1471 vim_replace_map: Default::default(),
1472 show_inline_completions: mode == EditorMode::Full,
1473 custom_context_menu: None,
1474 _subscriptions: vec![
1475 cx.observe(&buffer, Self::on_buffer_changed),
1476 cx.subscribe(&buffer, Self::on_buffer_event),
1477 cx.observe(&display_map, Self::on_display_map_changed),
1478 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1479 cx.observe_global::<SettingsStore>(Self::settings_changed),
1480 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1481 cx.observe_window_activation(|editor, cx| {
1482 let active = cx.is_window_active();
1483 editor.blink_manager.update(cx, |blink_manager, cx| {
1484 if active {
1485 blink_manager.enable(cx);
1486 } else {
1487 blink_manager.show_cursor(cx);
1488 blink_manager.disable(cx);
1489 }
1490 });
1491 }),
1492 ],
1493 };
1494
1495 this._subscriptions.extend(project_subscriptions);
1496
1497 this.end_selection(cx);
1498 this.scroll_manager.show_scrollbar(cx);
1499
1500 if mode == EditorMode::Full {
1501 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1502 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1503 }
1504
1505 this.report_editor_event("open", None, cx);
1506 this
1507 }
1508
1509 fn key_context(&self, cx: &AppContext) -> KeyContext {
1510 let mut key_context = KeyContext::default();
1511 key_context.add("Editor");
1512 let mode = match self.mode {
1513 EditorMode::SingleLine => "single_line",
1514 EditorMode::AutoHeight { .. } => "auto_height",
1515 EditorMode::Full => "full",
1516 };
1517 key_context.set("mode", mode);
1518 if self.pending_rename.is_some() {
1519 key_context.add("renaming");
1520 }
1521 if self.context_menu_visible() {
1522 match self.context_menu.read().as_ref() {
1523 Some(ContextMenu::Completions(_)) => {
1524 key_context.add("menu");
1525 key_context.add("showing_completions")
1526 }
1527 Some(ContextMenu::CodeActions(_)) => {
1528 key_context.add("menu");
1529 key_context.add("showing_code_actions")
1530 }
1531 None => {}
1532 }
1533 }
1534
1535 for layer in self.keymap_context_layers.values() {
1536 key_context.extend(layer);
1537 }
1538
1539 if let Some(extension) = self
1540 .buffer
1541 .read(cx)
1542 .as_singleton()
1543 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1544 {
1545 key_context.set("extension", extension.to_string());
1546 }
1547
1548 if self.has_active_inline_completion(cx) {
1549 key_context.add("copilot_suggestion");
1550 key_context.add("inline_completion");
1551 }
1552
1553 key_context
1554 }
1555
1556 pub fn new_file(
1557 workspace: &mut Workspace,
1558 _: &workspace::NewFile,
1559 cx: &mut ViewContext<Workspace>,
1560 ) {
1561 let project = workspace.project().clone();
1562 if project.read(cx).is_remote() {
1563 cx.propagate();
1564 } else if let Some(buffer) = project
1565 .update(cx, |project, cx| project.create_buffer("", None, cx))
1566 .log_err()
1567 {
1568 workspace.add_item_to_active_pane(
1569 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1570 cx,
1571 );
1572 }
1573 }
1574
1575 pub fn new_file_in_direction(
1576 workspace: &mut Workspace,
1577 action: &workspace::NewFileInDirection,
1578 cx: &mut ViewContext<Workspace>,
1579 ) {
1580 let project = workspace.project().clone();
1581 if project.read(cx).is_remote() {
1582 cx.propagate();
1583 } else if let Some(buffer) = project
1584 .update(cx, |project, cx| project.create_buffer("", None, cx))
1585 .log_err()
1586 {
1587 workspace.split_item(
1588 action.0,
1589 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1590 cx,
1591 );
1592 }
1593 }
1594
1595 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1596 self.buffer.read(cx).replica_id()
1597 }
1598
1599 pub fn leader_peer_id(&self) -> Option<PeerId> {
1600 self.leader_peer_id
1601 }
1602
1603 pub fn buffer(&self) -> &Model<MultiBuffer> {
1604 &self.buffer
1605 }
1606
1607 pub fn workspace(&self) -> Option<View<Workspace>> {
1608 self.workspace.as_ref()?.0.upgrade()
1609 }
1610
1611 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1612 self.buffer().read(cx).title(cx)
1613 }
1614
1615 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1616 EditorSnapshot {
1617 mode: self.mode,
1618 show_gutter: self.show_gutter,
1619 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1620 scroll_anchor: self.scroll_manager.anchor(),
1621 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1622 placeholder_text: self.placeholder_text.clone(),
1623 is_focused: self.focus_handle.is_focused(cx),
1624 }
1625 }
1626
1627 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1628 self.buffer.read(cx).language_at(point, cx)
1629 }
1630
1631 pub fn file_at<T: ToOffset>(
1632 &self,
1633 point: T,
1634 cx: &AppContext,
1635 ) -> Option<Arc<dyn language::File>> {
1636 self.buffer.read(cx).read(cx).file_at(point).cloned()
1637 }
1638
1639 pub fn active_excerpt(
1640 &self,
1641 cx: &AppContext,
1642 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1643 self.buffer
1644 .read(cx)
1645 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1646 }
1647
1648 pub fn mode(&self) -> EditorMode {
1649 self.mode
1650 }
1651
1652 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1653 self.collaboration_hub.as_deref()
1654 }
1655
1656 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1657 self.collaboration_hub = Some(hub);
1658 }
1659
1660 pub fn set_custom_context_menu(
1661 &mut self,
1662 f: impl 'static
1663 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1664 ) {
1665 self.custom_context_menu = Some(Box::new(f))
1666 }
1667
1668 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1669 self.completion_provider = Some(hub);
1670 }
1671
1672 pub fn set_inline_completion_provider(
1673 &mut self,
1674 provider: Model<impl InlineCompletionProvider>,
1675 cx: &mut ViewContext<Self>,
1676 ) {
1677 self.inline_completion_provider = Some(RegisteredInlineCompletionProvider {
1678 _subscription: cx.observe(&provider, |this, _, cx| {
1679 if this.focus_handle.is_focused(cx) {
1680 this.update_visible_inline_completion(cx);
1681 }
1682 }),
1683 provider: Arc::new(provider),
1684 });
1685 self.refresh_inline_completion(false, cx);
1686 }
1687
1688 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1689 self.placeholder_text.as_deref()
1690 }
1691
1692 pub fn set_placeholder_text(
1693 &mut self,
1694 placeholder_text: impl Into<Arc<str>>,
1695 cx: &mut ViewContext<Self>,
1696 ) {
1697 let placeholder_text = Some(placeholder_text.into());
1698 if self.placeholder_text != placeholder_text {
1699 self.placeholder_text = placeholder_text;
1700 cx.notify();
1701 }
1702 }
1703
1704 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1705 self.cursor_shape = cursor_shape;
1706 cx.notify();
1707 }
1708
1709 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1710 self.collapse_matches = collapse_matches;
1711 }
1712
1713 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1714 if self.collapse_matches {
1715 return range.start..range.start;
1716 }
1717 range.clone()
1718 }
1719
1720 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1721 if self.display_map.read(cx).clip_at_line_ends != clip {
1722 self.display_map
1723 .update(cx, |map, _| map.clip_at_line_ends = clip);
1724 }
1725 }
1726
1727 pub fn set_keymap_context_layer<Tag: 'static>(
1728 &mut self,
1729 context: KeyContext,
1730 cx: &mut ViewContext<Self>,
1731 ) {
1732 self.keymap_context_layers
1733 .insert(TypeId::of::<Tag>(), context);
1734 cx.notify();
1735 }
1736
1737 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1738 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1739 cx.notify();
1740 }
1741
1742 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1743 self.input_enabled = input_enabled;
1744 }
1745
1746 pub fn set_autoindent(&mut self, autoindent: bool) {
1747 if autoindent {
1748 self.autoindent_mode = Some(AutoindentMode::EachLine);
1749 } else {
1750 self.autoindent_mode = None;
1751 }
1752 }
1753
1754 pub fn read_only(&self, cx: &AppContext) -> bool {
1755 self.read_only || self.buffer.read(cx).read_only()
1756 }
1757
1758 pub fn set_read_only(&mut self, read_only: bool) {
1759 self.read_only = read_only;
1760 }
1761
1762 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1763 self.use_autoclose = autoclose;
1764 }
1765
1766 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1767 self.auto_replace_emoji_shortcode = auto_replace;
1768 }
1769
1770 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
1771 self.show_inline_completions = show_inline_completions;
1772 }
1773
1774 pub fn set_use_modal_editing(&mut self, to: bool) {
1775 self.use_modal_editing = to;
1776 }
1777
1778 pub fn use_modal_editing(&self) -> bool {
1779 self.use_modal_editing
1780 }
1781
1782 fn selections_did_change(
1783 &mut self,
1784 local: bool,
1785 old_cursor_position: &Anchor,
1786 cx: &mut ViewContext<Self>,
1787 ) {
1788 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1789 self.buffer.update(cx, |buffer, cx| {
1790 buffer.set_active_selections(
1791 &self.selections.disjoint_anchors(),
1792 self.selections.line_mode,
1793 self.cursor_shape,
1794 cx,
1795 )
1796 });
1797 }
1798
1799 let display_map = self
1800 .display_map
1801 .update(cx, |display_map, cx| display_map.snapshot(cx));
1802 let buffer = &display_map.buffer_snapshot;
1803 self.add_selections_state = None;
1804 self.select_next_state = None;
1805 self.select_prev_state = None;
1806 self.select_larger_syntax_node_stack.clear();
1807 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1808 self.snippet_stack
1809 .invalidate(&self.selections.disjoint_anchors(), buffer);
1810 self.take_rename(false, cx);
1811
1812 let new_cursor_position = self.selections.newest_anchor().head();
1813
1814 self.push_to_nav_history(
1815 *old_cursor_position,
1816 Some(new_cursor_position.to_point(buffer)),
1817 cx,
1818 );
1819
1820 if local {
1821 let new_cursor_position = self.selections.newest_anchor().head();
1822 let mut context_menu = self.context_menu.write();
1823 let completion_menu = match context_menu.as_ref() {
1824 Some(ContextMenu::Completions(menu)) => Some(menu),
1825
1826 _ => {
1827 *context_menu = None;
1828 None
1829 }
1830 };
1831
1832 if let Some(completion_menu) = completion_menu {
1833 let cursor_position = new_cursor_position.to_offset(buffer);
1834 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1835 if kind == Some(CharKind::Word)
1836 && word_range.to_inclusive().contains(&cursor_position)
1837 {
1838 let mut completion_menu = completion_menu.clone();
1839 drop(context_menu);
1840
1841 let query = Self::completion_query(buffer, cursor_position);
1842 cx.spawn(move |this, mut cx| async move {
1843 completion_menu
1844 .filter(query.as_deref(), cx.background_executor().clone())
1845 .await;
1846
1847 this.update(&mut cx, |this, cx| {
1848 let mut context_menu = this.context_menu.write();
1849 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1850 return;
1851 };
1852
1853 if menu.id > completion_menu.id {
1854 return;
1855 }
1856
1857 *context_menu = Some(ContextMenu::Completions(completion_menu));
1858 drop(context_menu);
1859 cx.notify();
1860 })
1861 })
1862 .detach();
1863
1864 self.show_completions(&ShowCompletions, cx);
1865 } else {
1866 drop(context_menu);
1867 self.hide_context_menu(cx);
1868 }
1869 } else {
1870 drop(context_menu);
1871 }
1872
1873 hide_hover(self, cx);
1874
1875 if old_cursor_position.to_display_point(&display_map).row()
1876 != new_cursor_position.to_display_point(&display_map).row()
1877 {
1878 self.available_code_actions.take();
1879 }
1880 self.refresh_code_actions(cx);
1881 self.refresh_document_highlights(cx);
1882 refresh_matching_bracket_highlights(self, cx);
1883 self.discard_inline_completion(cx);
1884 }
1885
1886 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1887 cx.emit(EditorEvent::SelectionsChanged { local });
1888
1889 if self.selections.disjoint_anchors().len() == 1 {
1890 cx.emit(SearchEvent::ActiveMatchChanged)
1891 }
1892
1893 cx.notify();
1894 }
1895
1896 pub fn change_selections<R>(
1897 &mut self,
1898 autoscroll: Option<Autoscroll>,
1899 cx: &mut ViewContext<Self>,
1900 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1901 ) -> R {
1902 let old_cursor_position = self.selections.newest_anchor().head();
1903 self.push_to_selection_history();
1904
1905 let (changed, result) = self.selections.change_with(cx, change);
1906
1907 if changed {
1908 if let Some(autoscroll) = autoscroll {
1909 self.request_autoscroll(autoscroll, cx);
1910 }
1911 self.selections_did_change(true, &old_cursor_position, cx);
1912 }
1913
1914 result
1915 }
1916
1917 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1918 where
1919 I: IntoIterator<Item = (Range<S>, T)>,
1920 S: ToOffset,
1921 T: Into<Arc<str>>,
1922 {
1923 if self.read_only(cx) {
1924 return;
1925 }
1926
1927 self.buffer
1928 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1929 }
1930
1931 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1932 where
1933 I: IntoIterator<Item = (Range<S>, T)>,
1934 S: ToOffset,
1935 T: Into<Arc<str>>,
1936 {
1937 if self.read_only(cx) {
1938 return;
1939 }
1940
1941 self.buffer.update(cx, |buffer, cx| {
1942 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1943 });
1944 }
1945
1946 pub fn edit_with_block_indent<I, S, T>(
1947 &mut self,
1948 edits: I,
1949 original_indent_columns: Vec<u32>,
1950 cx: &mut ViewContext<Self>,
1951 ) where
1952 I: IntoIterator<Item = (Range<S>, T)>,
1953 S: ToOffset,
1954 T: Into<Arc<str>>,
1955 {
1956 if self.read_only(cx) {
1957 return;
1958 }
1959
1960 self.buffer.update(cx, |buffer, cx| {
1961 buffer.edit(
1962 edits,
1963 Some(AutoindentMode::Block {
1964 original_indent_columns,
1965 }),
1966 cx,
1967 )
1968 });
1969 }
1970
1971 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1972 self.hide_context_menu(cx);
1973
1974 match phase {
1975 SelectPhase::Begin {
1976 position,
1977 add,
1978 click_count,
1979 } => self.begin_selection(position, add, click_count, cx),
1980 SelectPhase::BeginColumnar {
1981 position,
1982 goal_column,
1983 } => self.begin_columnar_selection(position, goal_column, cx),
1984 SelectPhase::Extend {
1985 position,
1986 click_count,
1987 } => self.extend_selection(position, click_count, cx),
1988 SelectPhase::Update {
1989 position,
1990 goal_column,
1991 scroll_delta,
1992 } => self.update_selection(position, goal_column, scroll_delta, cx),
1993 SelectPhase::End => self.end_selection(cx),
1994 }
1995 }
1996
1997 fn extend_selection(
1998 &mut self,
1999 position: DisplayPoint,
2000 click_count: usize,
2001 cx: &mut ViewContext<Self>,
2002 ) {
2003 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2004 let tail = self.selections.newest::<usize>(cx).tail();
2005 self.begin_selection(position, false, click_count, cx);
2006
2007 let position = position.to_offset(&display_map, Bias::Left);
2008 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2009
2010 let mut pending_selection = self
2011 .selections
2012 .pending_anchor()
2013 .expect("extend_selection not called with pending selection");
2014 if position >= tail {
2015 pending_selection.start = tail_anchor;
2016 } else {
2017 pending_selection.end = tail_anchor;
2018 pending_selection.reversed = true;
2019 }
2020
2021 let mut pending_mode = self.selections.pending_mode().unwrap();
2022 match &mut pending_mode {
2023 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2024 _ => {}
2025 }
2026
2027 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2028 s.set_pending(pending_selection, pending_mode)
2029 });
2030 }
2031
2032 fn begin_selection(
2033 &mut self,
2034 position: DisplayPoint,
2035 add: bool,
2036 click_count: usize,
2037 cx: &mut ViewContext<Self>,
2038 ) {
2039 if !self.focus_handle.is_focused(cx) {
2040 cx.focus(&self.focus_handle);
2041 }
2042
2043 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2044 let buffer = &display_map.buffer_snapshot;
2045 let newest_selection = self.selections.newest_anchor().clone();
2046 let position = display_map.clip_point(position, Bias::Left);
2047
2048 let start;
2049 let end;
2050 let mode;
2051 let auto_scroll;
2052 match click_count {
2053 1 => {
2054 start = buffer.anchor_before(position.to_point(&display_map));
2055 end = start;
2056 mode = SelectMode::Character;
2057 auto_scroll = true;
2058 }
2059 2 => {
2060 let range = movement::surrounding_word(&display_map, position);
2061 start = buffer.anchor_before(range.start.to_point(&display_map));
2062 end = buffer.anchor_before(range.end.to_point(&display_map));
2063 mode = SelectMode::Word(start..end);
2064 auto_scroll = true;
2065 }
2066 3 => {
2067 let position = display_map
2068 .clip_point(position, Bias::Left)
2069 .to_point(&display_map);
2070 let line_start = display_map.prev_line_boundary(position).0;
2071 let next_line_start = buffer.clip_point(
2072 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2073 Bias::Left,
2074 );
2075 start = buffer.anchor_before(line_start);
2076 end = buffer.anchor_before(next_line_start);
2077 mode = SelectMode::Line(start..end);
2078 auto_scroll = true;
2079 }
2080 _ => {
2081 start = buffer.anchor_before(0);
2082 end = buffer.anchor_before(buffer.len());
2083 mode = SelectMode::All;
2084 auto_scroll = false;
2085 }
2086 }
2087
2088 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2089 if !add {
2090 s.clear_disjoint();
2091 } else if click_count > 1 {
2092 s.delete(newest_selection.id)
2093 }
2094
2095 s.set_pending_anchor_range(start..end, mode);
2096 });
2097 }
2098
2099 fn begin_columnar_selection(
2100 &mut self,
2101 position: DisplayPoint,
2102 goal_column: u32,
2103 cx: &mut ViewContext<Self>,
2104 ) {
2105 if !self.focus_handle.is_focused(cx) {
2106 cx.focus(&self.focus_handle);
2107 }
2108
2109 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2110 let tail = self.selections.newest::<Point>(cx).tail();
2111 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2112
2113 self.select_columns(
2114 tail.to_display_point(&display_map),
2115 position,
2116 goal_column,
2117 &display_map,
2118 cx,
2119 );
2120 }
2121
2122 fn update_selection(
2123 &mut self,
2124 position: DisplayPoint,
2125 goal_column: u32,
2126 scroll_delta: gpui::Point<f32>,
2127 cx: &mut ViewContext<Self>,
2128 ) {
2129 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2130
2131 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2132 let tail = tail.to_display_point(&display_map);
2133 self.select_columns(tail, position, goal_column, &display_map, cx);
2134 } else if let Some(mut pending) = self.selections.pending_anchor() {
2135 let buffer = self.buffer.read(cx).snapshot(cx);
2136 let head;
2137 let tail;
2138 let mode = self.selections.pending_mode().unwrap();
2139 match &mode {
2140 SelectMode::Character => {
2141 head = position.to_point(&display_map);
2142 tail = pending.tail().to_point(&buffer);
2143 }
2144 SelectMode::Word(original_range) => {
2145 let original_display_range = original_range.start.to_display_point(&display_map)
2146 ..original_range.end.to_display_point(&display_map);
2147 let original_buffer_range = original_display_range.start.to_point(&display_map)
2148 ..original_display_range.end.to_point(&display_map);
2149 if movement::is_inside_word(&display_map, position)
2150 || original_display_range.contains(&position)
2151 {
2152 let word_range = movement::surrounding_word(&display_map, position);
2153 if word_range.start < original_display_range.start {
2154 head = word_range.start.to_point(&display_map);
2155 } else {
2156 head = word_range.end.to_point(&display_map);
2157 }
2158 } else {
2159 head = position.to_point(&display_map);
2160 }
2161
2162 if head <= original_buffer_range.start {
2163 tail = original_buffer_range.end;
2164 } else {
2165 tail = original_buffer_range.start;
2166 }
2167 }
2168 SelectMode::Line(original_range) => {
2169 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2170
2171 let position = display_map
2172 .clip_point(position, Bias::Left)
2173 .to_point(&display_map);
2174 let line_start = display_map.prev_line_boundary(position).0;
2175 let next_line_start = buffer.clip_point(
2176 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2177 Bias::Left,
2178 );
2179
2180 if line_start < original_range.start {
2181 head = line_start
2182 } else {
2183 head = next_line_start
2184 }
2185
2186 if head <= original_range.start {
2187 tail = original_range.end;
2188 } else {
2189 tail = original_range.start;
2190 }
2191 }
2192 SelectMode::All => {
2193 return;
2194 }
2195 };
2196
2197 if head < tail {
2198 pending.start = buffer.anchor_before(head);
2199 pending.end = buffer.anchor_before(tail);
2200 pending.reversed = true;
2201 } else {
2202 pending.start = buffer.anchor_before(tail);
2203 pending.end = buffer.anchor_before(head);
2204 pending.reversed = false;
2205 }
2206
2207 self.change_selections(None, cx, |s| {
2208 s.set_pending(pending, mode);
2209 });
2210 } else {
2211 log::error!("update_selection dispatched with no pending selection");
2212 return;
2213 }
2214
2215 self.apply_scroll_delta(scroll_delta, cx);
2216 cx.notify();
2217 }
2218
2219 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2220 self.columnar_selection_tail.take();
2221 if self.selections.pending_anchor().is_some() {
2222 let selections = self.selections.all::<usize>(cx);
2223 self.change_selections(None, cx, |s| {
2224 s.select(selections);
2225 s.clear_pending();
2226 });
2227 }
2228 }
2229
2230 fn select_columns(
2231 &mut self,
2232 tail: DisplayPoint,
2233 head: DisplayPoint,
2234 goal_column: u32,
2235 display_map: &DisplaySnapshot,
2236 cx: &mut ViewContext<Self>,
2237 ) {
2238 let start_row = cmp::min(tail.row(), head.row());
2239 let end_row = cmp::max(tail.row(), head.row());
2240 let start_column = cmp::min(tail.column(), goal_column);
2241 let end_column = cmp::max(tail.column(), goal_column);
2242 let reversed = start_column < tail.column();
2243
2244 let selection_ranges = (start_row..=end_row)
2245 .filter_map(|row| {
2246 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2247 let start = display_map
2248 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2249 .to_point(display_map);
2250 let end = display_map
2251 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2252 .to_point(display_map);
2253 if reversed {
2254 Some(end..start)
2255 } else {
2256 Some(start..end)
2257 }
2258 } else {
2259 None
2260 }
2261 })
2262 .collect::<Vec<_>>();
2263
2264 self.change_selections(None, cx, |s| {
2265 s.select_ranges(selection_ranges);
2266 });
2267 cx.notify();
2268 }
2269
2270 pub fn has_pending_nonempty_selection(&self) -> bool {
2271 let pending_nonempty_selection = match self.selections.pending_anchor() {
2272 Some(Selection { start, end, .. }) => start != end,
2273 None => false,
2274 };
2275 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2276 }
2277
2278 pub fn has_pending_selection(&self) -> bool {
2279 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2280 }
2281
2282 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2283 if self.dismiss_menus_and_popups(cx) {
2284 return;
2285 }
2286
2287 if self.mode == EditorMode::Full {
2288 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2289 return;
2290 }
2291 }
2292
2293 cx.propagate();
2294 }
2295
2296 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2297 if self.take_rename(false, cx).is_some() {
2298 return true;
2299 }
2300
2301 if hide_hover(self, cx) {
2302 return true;
2303 }
2304
2305 if self.hide_context_menu(cx).is_some() {
2306 return true;
2307 }
2308
2309 if self.discard_inline_completion(cx) {
2310 return true;
2311 }
2312
2313 if self.snippet_stack.pop().is_some() {
2314 return true;
2315 }
2316
2317 if self.mode == EditorMode::Full {
2318 if self.active_diagnostics.is_some() {
2319 self.dismiss_diagnostics(cx);
2320 return true;
2321 }
2322 }
2323
2324 false
2325 }
2326
2327 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2328 let text: Arc<str> = text.into();
2329
2330 if self.read_only(cx) {
2331 return;
2332 }
2333
2334 let selections = self.selections.all_adjusted(cx);
2335 let mut brace_inserted = false;
2336 let mut edits = Vec::new();
2337 let mut new_selections = Vec::with_capacity(selections.len());
2338 let mut new_autoclose_regions = Vec::new();
2339 let snapshot = self.buffer.read(cx).read(cx);
2340
2341 for (selection, autoclose_region) in
2342 self.selections_with_autoclose_regions(selections, &snapshot)
2343 {
2344 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2345 // Determine if the inserted text matches the opening or closing
2346 // bracket of any of this language's bracket pairs.
2347 let mut bracket_pair = None;
2348 let mut is_bracket_pair_start = false;
2349 let mut is_bracket_pair_end = false;
2350 if !text.is_empty() {
2351 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2352 // and they are removing the character that triggered IME popup.
2353 for (pair, enabled) in scope.brackets() {
2354 if !pair.close {
2355 continue;
2356 }
2357
2358 if enabled && pair.start.ends_with(text.as_ref()) {
2359 bracket_pair = Some(pair.clone());
2360 is_bracket_pair_start = true;
2361 break;
2362 }
2363 if pair.end.as_str() == text.as_ref() {
2364 bracket_pair = Some(pair.clone());
2365 is_bracket_pair_end = true;
2366 break;
2367 }
2368 }
2369 }
2370
2371 if let Some(bracket_pair) = bracket_pair {
2372 if selection.is_empty() {
2373 if is_bracket_pair_start {
2374 let prefix_len = bracket_pair.start.len() - text.len();
2375
2376 // If the inserted text is a suffix of an opening bracket and the
2377 // selection is preceded by the rest of the opening bracket, then
2378 // insert the closing bracket.
2379 let following_text_allows_autoclose = snapshot
2380 .chars_at(selection.start)
2381 .next()
2382 .map_or(true, |c| scope.should_autoclose_before(c));
2383 let preceding_text_matches_prefix = prefix_len == 0
2384 || (selection.start.column >= (prefix_len as u32)
2385 && snapshot.contains_str_at(
2386 Point::new(
2387 selection.start.row,
2388 selection.start.column - (prefix_len as u32),
2389 ),
2390 &bracket_pair.start[..prefix_len],
2391 ));
2392 let autoclose = self.use_autoclose
2393 && snapshot.settings_at(selection.start, cx).use_autoclose;
2394 if autoclose
2395 && following_text_allows_autoclose
2396 && preceding_text_matches_prefix
2397 {
2398 let anchor = snapshot.anchor_before(selection.end);
2399 new_selections.push((selection.map(|_| anchor), text.len()));
2400 new_autoclose_regions.push((
2401 anchor,
2402 text.len(),
2403 selection.id,
2404 bracket_pair.clone(),
2405 ));
2406 edits.push((
2407 selection.range(),
2408 format!("{}{}", text, bracket_pair.end).into(),
2409 ));
2410 brace_inserted = true;
2411 continue;
2412 }
2413 }
2414
2415 if let Some(region) = autoclose_region {
2416 // If the selection is followed by an auto-inserted closing bracket,
2417 // then don't insert that closing bracket again; just move the selection
2418 // past the closing bracket.
2419 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2420 && text.as_ref() == region.pair.end.as_str();
2421 if should_skip {
2422 let anchor = snapshot.anchor_after(selection.end);
2423 new_selections
2424 .push((selection.map(|_| anchor), region.pair.end.len()));
2425 continue;
2426 }
2427 }
2428
2429 let always_treat_brackets_as_autoclosed = snapshot
2430 .settings_at(selection.start, cx)
2431 .always_treat_brackets_as_autoclosed;
2432 if always_treat_brackets_as_autoclosed
2433 && is_bracket_pair_end
2434 && snapshot.contains_str_at(selection.end, text.as_ref())
2435 {
2436 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2437 // and the inserted text is a closing bracket and the selection is followed
2438 // by the closing bracket then move the selection past the closing bracket.
2439 let anchor = snapshot.anchor_after(selection.end);
2440 new_selections.push((selection.map(|_| anchor), text.len()));
2441 continue;
2442 }
2443 }
2444 // If an opening bracket is 1 character long and is typed while
2445 // text is selected, then surround that text with the bracket pair.
2446 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2447 edits.push((selection.start..selection.start, text.clone()));
2448 edits.push((
2449 selection.end..selection.end,
2450 bracket_pair.end.as_str().into(),
2451 ));
2452 brace_inserted = true;
2453 new_selections.push((
2454 Selection {
2455 id: selection.id,
2456 start: snapshot.anchor_after(selection.start),
2457 end: snapshot.anchor_before(selection.end),
2458 reversed: selection.reversed,
2459 goal: selection.goal,
2460 },
2461 0,
2462 ));
2463 continue;
2464 }
2465 }
2466 }
2467
2468 if self.auto_replace_emoji_shortcode
2469 && selection.is_empty()
2470 && text.as_ref().ends_with(':')
2471 {
2472 if let Some(possible_emoji_short_code) =
2473 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2474 {
2475 if !possible_emoji_short_code.is_empty() {
2476 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2477 let emoji_shortcode_start = Point::new(
2478 selection.start.row,
2479 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2480 );
2481
2482 // Remove shortcode from buffer
2483 edits.push((
2484 emoji_shortcode_start..selection.start,
2485 "".to_string().into(),
2486 ));
2487 new_selections.push((
2488 Selection {
2489 id: selection.id,
2490 start: snapshot.anchor_after(emoji_shortcode_start),
2491 end: snapshot.anchor_before(selection.start),
2492 reversed: selection.reversed,
2493 goal: selection.goal,
2494 },
2495 0,
2496 ));
2497
2498 // Insert emoji
2499 let selection_start_anchor = snapshot.anchor_after(selection.start);
2500 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2501 edits.push((selection.start..selection.end, emoji.to_string().into()));
2502
2503 continue;
2504 }
2505 }
2506 }
2507 }
2508
2509 // If not handling any auto-close operation, then just replace the selected
2510 // text with the given input and move the selection to the end of the
2511 // newly inserted text.
2512 let anchor = snapshot.anchor_after(selection.end);
2513 new_selections.push((selection.map(|_| anchor), 0));
2514 edits.push((selection.start..selection.end, text.clone()));
2515 }
2516
2517 drop(snapshot);
2518 self.transact(cx, |this, cx| {
2519 this.buffer.update(cx, |buffer, cx| {
2520 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2521 });
2522
2523 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2524 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2525 let snapshot = this.buffer.read(cx).read(cx);
2526 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2527 .zip(new_selection_deltas)
2528 .map(|(selection, delta)| Selection {
2529 id: selection.id,
2530 start: selection.start + delta,
2531 end: selection.end + delta,
2532 reversed: selection.reversed,
2533 goal: SelectionGoal::None,
2534 })
2535 .collect::<Vec<_>>();
2536
2537 let mut i = 0;
2538 for (position, delta, selection_id, pair) in new_autoclose_regions {
2539 let position = position.to_offset(&snapshot) + delta;
2540 let start = snapshot.anchor_before(position);
2541 let end = snapshot.anchor_after(position);
2542 while let Some(existing_state) = this.autoclose_regions.get(i) {
2543 match existing_state.range.start.cmp(&start, &snapshot) {
2544 Ordering::Less => i += 1,
2545 Ordering::Greater => break,
2546 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2547 Ordering::Less => i += 1,
2548 Ordering::Equal => break,
2549 Ordering::Greater => break,
2550 },
2551 }
2552 }
2553 this.autoclose_regions.insert(
2554 i,
2555 AutocloseRegion {
2556 selection_id,
2557 range: start..end,
2558 pair,
2559 },
2560 );
2561 }
2562
2563 drop(snapshot);
2564 let had_active_copilot_completion = this.has_active_inline_completion(cx);
2565 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2566
2567 if brace_inserted {
2568 // If we inserted a brace while composing text (i.e. typing `"` on a
2569 // Brazilian keyboard), exit the composing state because most likely
2570 // the user wanted to surround the selection.
2571 this.unmark_text(cx);
2572 } else if EditorSettings::get_global(cx).use_on_type_format {
2573 if let Some(on_type_format_task) =
2574 this.trigger_on_type_formatting(text.to_string(), cx)
2575 {
2576 on_type_format_task.detach_and_log_err(cx);
2577 }
2578 }
2579
2580 if had_active_copilot_completion {
2581 this.refresh_inline_completion(true, cx);
2582 if !this.has_active_inline_completion(cx) {
2583 this.trigger_completion_on_input(&text, cx);
2584 }
2585 } else {
2586 this.trigger_completion_on_input(&text, cx);
2587 this.refresh_inline_completion(true, cx);
2588 }
2589 });
2590 }
2591
2592 fn find_possible_emoji_shortcode_at_position(
2593 snapshot: &MultiBufferSnapshot,
2594 position: Point,
2595 ) -> Option<String> {
2596 let mut chars = Vec::new();
2597 let mut found_colon = false;
2598 for char in snapshot.reversed_chars_at(position).take(100) {
2599 // Found a possible emoji shortcode in the middle of the buffer
2600 if found_colon {
2601 if char.is_whitespace() {
2602 chars.reverse();
2603 return Some(chars.iter().collect());
2604 }
2605 // If the previous character is not a whitespace, we are in the middle of a word
2606 // and we only want to complete the shortcode if the word is made up of other emojis
2607 let mut containing_word = String::new();
2608 for ch in snapshot
2609 .reversed_chars_at(position)
2610 .skip(chars.len() + 1)
2611 .take(100)
2612 {
2613 if ch.is_whitespace() {
2614 break;
2615 }
2616 containing_word.push(ch);
2617 }
2618 let containing_word = containing_word.chars().rev().collect::<String>();
2619 if util::word_consists_of_emojis(containing_word.as_str()) {
2620 chars.reverse();
2621 return Some(chars.iter().collect());
2622 }
2623 }
2624
2625 if char.is_whitespace() || !char.is_ascii() {
2626 return None;
2627 }
2628 if char == ':' {
2629 found_colon = true;
2630 } else {
2631 chars.push(char);
2632 }
2633 }
2634 // Found a possible emoji shortcode at the beginning of the buffer
2635 chars.reverse();
2636 Some(chars.iter().collect())
2637 }
2638
2639 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2640 self.transact(cx, |this, cx| {
2641 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2642 let selections = this.selections.all::<usize>(cx);
2643 let multi_buffer = this.buffer.read(cx);
2644 let buffer = multi_buffer.snapshot(cx);
2645 selections
2646 .iter()
2647 .map(|selection| {
2648 let start_point = selection.start.to_point(&buffer);
2649 let mut indent = buffer.indent_size_for_line(start_point.row);
2650 indent.len = cmp::min(indent.len, start_point.column);
2651 let start = selection.start;
2652 let end = selection.end;
2653 let is_cursor = start == end;
2654 let language_scope = buffer.language_scope_at(start);
2655 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2656 &language_scope
2657 {
2658 let leading_whitespace_len = buffer
2659 .reversed_chars_at(start)
2660 .take_while(|c| c.is_whitespace() && *c != '\n')
2661 .map(|c| c.len_utf8())
2662 .sum::<usize>();
2663
2664 let trailing_whitespace_len = buffer
2665 .chars_at(end)
2666 .take_while(|c| c.is_whitespace() && *c != '\n')
2667 .map(|c| c.len_utf8())
2668 .sum::<usize>();
2669
2670 let insert_extra_newline =
2671 language.brackets().any(|(pair, enabled)| {
2672 let pair_start = pair.start.trim_end();
2673 let pair_end = pair.end.trim_start();
2674
2675 enabled
2676 && pair.newline
2677 && buffer.contains_str_at(
2678 end + trailing_whitespace_len,
2679 pair_end,
2680 )
2681 && buffer.contains_str_at(
2682 (start - leading_whitespace_len)
2683 .saturating_sub(pair_start.len()),
2684 pair_start,
2685 )
2686 });
2687 // Comment extension on newline is allowed only for cursor selections
2688 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2689 let is_comment_extension_enabled =
2690 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2691 is_cursor && is_comment_extension_enabled
2692 });
2693 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2694 let max_len_of_delimiter =
2695 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2696 let (snapshot, range) =
2697 buffer.buffer_line_for_row(start_point.row)?;
2698
2699 let mut index_of_first_non_whitespace = 0;
2700 let comment_candidate = snapshot
2701 .chars_for_range(range)
2702 .skip_while(|c| {
2703 let should_skip = c.is_whitespace();
2704 if should_skip {
2705 index_of_first_non_whitespace += 1;
2706 }
2707 should_skip
2708 })
2709 .take(max_len_of_delimiter)
2710 .collect::<String>();
2711 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2712 comment_candidate.starts_with(comment_prefix.as_ref())
2713 })?;
2714 let cursor_is_placed_after_comment_marker =
2715 index_of_first_non_whitespace + comment_prefix.len()
2716 <= start_point.column as usize;
2717 if cursor_is_placed_after_comment_marker {
2718 Some(comment_prefix.clone())
2719 } else {
2720 None
2721 }
2722 };
2723 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2724 get_comment_delimiter(delimiters)
2725 } else {
2726 None
2727 };
2728 (comment_delimiter, insert_extra_newline)
2729 } else {
2730 (None, false)
2731 };
2732
2733 let capacity_for_delimiter = comment_delimiter
2734 .as_deref()
2735 .map(str::len)
2736 .unwrap_or_default();
2737 let mut new_text =
2738 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2739 new_text.push_str("\n");
2740 new_text.extend(indent.chars());
2741 if let Some(delimiter) = &comment_delimiter {
2742 new_text.push_str(&delimiter);
2743 }
2744 if insert_extra_newline {
2745 new_text = new_text.repeat(2);
2746 }
2747
2748 let anchor = buffer.anchor_after(end);
2749 let new_selection = selection.map(|_| anchor);
2750 (
2751 (start..end, new_text),
2752 (insert_extra_newline, new_selection),
2753 )
2754 })
2755 .unzip()
2756 };
2757
2758 this.edit_with_autoindent(edits, cx);
2759 let buffer = this.buffer.read(cx).snapshot(cx);
2760 let new_selections = selection_fixup_info
2761 .into_iter()
2762 .map(|(extra_newline_inserted, new_selection)| {
2763 let mut cursor = new_selection.end.to_point(&buffer);
2764 if extra_newline_inserted {
2765 cursor.row -= 1;
2766 cursor.column = buffer.line_len(cursor.row);
2767 }
2768 new_selection.map(|_| cursor)
2769 })
2770 .collect();
2771
2772 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2773 this.refresh_inline_completion(true, cx);
2774 });
2775 }
2776
2777 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2778 let buffer = self.buffer.read(cx);
2779 let snapshot = buffer.snapshot(cx);
2780
2781 let mut edits = Vec::new();
2782 let mut rows = Vec::new();
2783
2784 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2785 let cursor = selection.head();
2786 let row = cursor.row;
2787
2788 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2789
2790 let newline = "\n".to_string();
2791 edits.push((start_of_line..start_of_line, newline));
2792
2793 rows.push(row + rows_inserted as u32);
2794 }
2795
2796 self.transact(cx, |editor, cx| {
2797 editor.edit(edits, cx);
2798
2799 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2800 let mut index = 0;
2801 s.move_cursors_with(|map, _, _| {
2802 let row = rows[index];
2803 index += 1;
2804
2805 let point = Point::new(row, 0);
2806 let boundary = map.next_line_boundary(point).1;
2807 let clipped = map.clip_point(boundary, Bias::Left);
2808
2809 (clipped, SelectionGoal::None)
2810 });
2811 });
2812
2813 let mut indent_edits = Vec::new();
2814 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2815 for row in rows {
2816 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2817 for (row, indent) in indents {
2818 if indent.len == 0 {
2819 continue;
2820 }
2821
2822 let text = match indent.kind {
2823 IndentKind::Space => " ".repeat(indent.len as usize),
2824 IndentKind::Tab => "\t".repeat(indent.len as usize),
2825 };
2826 let point = Point::new(row, 0);
2827 indent_edits.push((point..point, text));
2828 }
2829 }
2830 editor.edit(indent_edits, cx);
2831 });
2832 }
2833
2834 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2835 let buffer = self.buffer.read(cx);
2836 let snapshot = buffer.snapshot(cx);
2837
2838 let mut edits = Vec::new();
2839 let mut rows = Vec::new();
2840 let mut rows_inserted = 0;
2841
2842 for selection in self.selections.all_adjusted(cx) {
2843 let cursor = selection.head();
2844 let row = cursor.row;
2845
2846 let point = Point::new(row + 1, 0);
2847 let start_of_line = snapshot.clip_point(point, Bias::Left);
2848
2849 let newline = "\n".to_string();
2850 edits.push((start_of_line..start_of_line, newline));
2851
2852 rows_inserted += 1;
2853 rows.push(row + rows_inserted);
2854 }
2855
2856 self.transact(cx, |editor, cx| {
2857 editor.edit(edits, cx);
2858
2859 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2860 let mut index = 0;
2861 s.move_cursors_with(|map, _, _| {
2862 let row = rows[index];
2863 index += 1;
2864
2865 let point = Point::new(row, 0);
2866 let boundary = map.next_line_boundary(point).1;
2867 let clipped = map.clip_point(boundary, Bias::Left);
2868
2869 (clipped, SelectionGoal::None)
2870 });
2871 });
2872
2873 let mut indent_edits = Vec::new();
2874 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2875 for row in rows {
2876 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2877 for (row, indent) in indents {
2878 if indent.len == 0 {
2879 continue;
2880 }
2881
2882 let text = match indent.kind {
2883 IndentKind::Space => " ".repeat(indent.len as usize),
2884 IndentKind::Tab => "\t".repeat(indent.len as usize),
2885 };
2886 let point = Point::new(row, 0);
2887 indent_edits.push((point..point, text));
2888 }
2889 }
2890 editor.edit(indent_edits, cx);
2891 });
2892 }
2893
2894 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2895 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
2896 original_indent_columns: Vec::new(),
2897 });
2898 self.insert_with_autoindent_mode(text, autoindent, cx);
2899 }
2900
2901 fn insert_with_autoindent_mode(
2902 &mut self,
2903 text: &str,
2904 autoindent_mode: Option<AutoindentMode>,
2905 cx: &mut ViewContext<Self>,
2906 ) {
2907 if self.read_only(cx) {
2908 return;
2909 }
2910
2911 let text: Arc<str> = text.into();
2912 self.transact(cx, |this, cx| {
2913 let old_selections = this.selections.all_adjusted(cx);
2914 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2915 let anchors = {
2916 let snapshot = buffer.read(cx);
2917 old_selections
2918 .iter()
2919 .map(|s| {
2920 let anchor = snapshot.anchor_after(s.head());
2921 s.map(|_| anchor)
2922 })
2923 .collect::<Vec<_>>()
2924 };
2925 buffer.edit(
2926 old_selections
2927 .iter()
2928 .map(|s| (s.start..s.end, text.clone())),
2929 autoindent_mode,
2930 cx,
2931 );
2932 anchors
2933 });
2934
2935 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2936 s.select_anchors(selection_anchors);
2937 })
2938 });
2939 }
2940
2941 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2942 if !EditorSettings::get_global(cx).show_completions_on_input {
2943 return;
2944 }
2945
2946 let selection = self.selections.newest_anchor();
2947 if self
2948 .buffer
2949 .read(cx)
2950 .is_completion_trigger(selection.head(), text, cx)
2951 {
2952 self.show_completions(&ShowCompletions, cx);
2953 } else {
2954 self.hide_context_menu(cx);
2955 }
2956 }
2957
2958 /// If any empty selections is touching the start of its innermost containing autoclose
2959 /// region, expand it to select the brackets.
2960 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2961 let selections = self.selections.all::<usize>(cx);
2962 let buffer = self.buffer.read(cx).read(cx);
2963 let new_selections = self
2964 .selections_with_autoclose_regions(selections, &buffer)
2965 .map(|(mut selection, region)| {
2966 if !selection.is_empty() {
2967 return selection;
2968 }
2969
2970 if let Some(region) = region {
2971 let mut range = region.range.to_offset(&buffer);
2972 if selection.start == range.start && range.start >= region.pair.start.len() {
2973 range.start -= region.pair.start.len();
2974 if buffer.contains_str_at(range.start, ®ion.pair.start)
2975 && buffer.contains_str_at(range.end, ®ion.pair.end)
2976 {
2977 range.end += region.pair.end.len();
2978 selection.start = range.start;
2979 selection.end = range.end;
2980
2981 return selection;
2982 }
2983 }
2984 }
2985
2986 let always_treat_brackets_as_autoclosed = buffer
2987 .settings_at(selection.start, cx)
2988 .always_treat_brackets_as_autoclosed;
2989
2990 if !always_treat_brackets_as_autoclosed {
2991 return selection;
2992 }
2993
2994 if let Some(scope) = buffer.language_scope_at(selection.start) {
2995 for (pair, enabled) in scope.brackets() {
2996 if !enabled || !pair.close {
2997 continue;
2998 }
2999
3000 if buffer.contains_str_at(selection.start, &pair.end) {
3001 let pair_start_len = pair.start.len();
3002 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3003 {
3004 selection.start -= pair_start_len;
3005 selection.end += pair.end.len();
3006
3007 return selection;
3008 }
3009 }
3010 }
3011 }
3012
3013 selection
3014 })
3015 .collect();
3016
3017 drop(buffer);
3018 self.change_selections(None, cx, |selections| selections.select(new_selections));
3019 }
3020
3021 /// Iterate the given selections, and for each one, find the smallest surrounding
3022 /// autoclose region. This uses the ordering of the selections and the autoclose
3023 /// regions to avoid repeated comparisons.
3024 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3025 &'a self,
3026 selections: impl IntoIterator<Item = Selection<D>>,
3027 buffer: &'a MultiBufferSnapshot,
3028 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3029 let mut i = 0;
3030 let mut regions = self.autoclose_regions.as_slice();
3031 selections.into_iter().map(move |selection| {
3032 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3033
3034 let mut enclosing = None;
3035 while let Some(pair_state) = regions.get(i) {
3036 if pair_state.range.end.to_offset(buffer) < range.start {
3037 regions = ®ions[i + 1..];
3038 i = 0;
3039 } else if pair_state.range.start.to_offset(buffer) > range.end {
3040 break;
3041 } else {
3042 if pair_state.selection_id == selection.id {
3043 enclosing = Some(pair_state);
3044 }
3045 i += 1;
3046 }
3047 }
3048
3049 (selection.clone(), enclosing)
3050 })
3051 }
3052
3053 /// Remove any autoclose regions that no longer contain their selection.
3054 fn invalidate_autoclose_regions(
3055 &mut self,
3056 mut selections: &[Selection<Anchor>],
3057 buffer: &MultiBufferSnapshot,
3058 ) {
3059 self.autoclose_regions.retain(|state| {
3060 let mut i = 0;
3061 while let Some(selection) = selections.get(i) {
3062 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3063 selections = &selections[1..];
3064 continue;
3065 }
3066 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3067 break;
3068 }
3069 if selection.id == state.selection_id {
3070 return true;
3071 } else {
3072 i += 1;
3073 }
3074 }
3075 false
3076 });
3077 }
3078
3079 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3080 let offset = position.to_offset(buffer);
3081 let (word_range, kind) = buffer.surrounding_word(offset);
3082 if offset > word_range.start && kind == Some(CharKind::Word) {
3083 Some(
3084 buffer
3085 .text_for_range(word_range.start..offset)
3086 .collect::<String>(),
3087 )
3088 } else {
3089 None
3090 }
3091 }
3092
3093 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3094 self.refresh_inlay_hints(
3095 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3096 cx,
3097 );
3098 }
3099
3100 pub fn inlay_hints_enabled(&self) -> bool {
3101 self.inlay_hint_cache.enabled
3102 }
3103
3104 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3105 if self.project.is_none() || self.mode != EditorMode::Full {
3106 return;
3107 }
3108
3109 let reason_description = reason.description();
3110 let ignore_debounce = matches!(
3111 reason,
3112 InlayHintRefreshReason::SettingsChange(_)
3113 | InlayHintRefreshReason::Toggle(_)
3114 | InlayHintRefreshReason::ExcerptsRemoved(_)
3115 );
3116 let (invalidate_cache, required_languages) = match reason {
3117 InlayHintRefreshReason::Toggle(enabled) => {
3118 self.inlay_hint_cache.enabled = enabled;
3119 if enabled {
3120 (InvalidationStrategy::RefreshRequested, None)
3121 } else {
3122 self.inlay_hint_cache.clear();
3123 self.splice_inlays(
3124 self.visible_inlay_hints(cx)
3125 .iter()
3126 .map(|inlay| inlay.id)
3127 .collect(),
3128 Vec::new(),
3129 cx,
3130 );
3131 return;
3132 }
3133 }
3134 InlayHintRefreshReason::SettingsChange(new_settings) => {
3135 match self.inlay_hint_cache.update_settings(
3136 &self.buffer,
3137 new_settings,
3138 self.visible_inlay_hints(cx),
3139 cx,
3140 ) {
3141 ControlFlow::Break(Some(InlaySplice {
3142 to_remove,
3143 to_insert,
3144 })) => {
3145 self.splice_inlays(to_remove, to_insert, cx);
3146 return;
3147 }
3148 ControlFlow::Break(None) => return,
3149 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3150 }
3151 }
3152 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3153 if let Some(InlaySplice {
3154 to_remove,
3155 to_insert,
3156 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3157 {
3158 self.splice_inlays(to_remove, to_insert, cx);
3159 }
3160 return;
3161 }
3162 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3163 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3164 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3165 }
3166 InlayHintRefreshReason::RefreshRequested => {
3167 (InvalidationStrategy::RefreshRequested, None)
3168 }
3169 };
3170
3171 if let Some(InlaySplice {
3172 to_remove,
3173 to_insert,
3174 }) = self.inlay_hint_cache.spawn_hint_refresh(
3175 reason_description,
3176 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3177 invalidate_cache,
3178 ignore_debounce,
3179 cx,
3180 ) {
3181 self.splice_inlays(to_remove, to_insert, cx);
3182 }
3183 }
3184
3185 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3186 self.display_map
3187 .read(cx)
3188 .current_inlays()
3189 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3190 .cloned()
3191 .collect()
3192 }
3193
3194 pub fn excerpts_for_inlay_hints_query(
3195 &self,
3196 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3197 cx: &mut ViewContext<Editor>,
3198 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3199 let Some(project) = self.project.as_ref() else {
3200 return HashMap::default();
3201 };
3202 let project = project.read(cx);
3203 let multi_buffer = self.buffer().read(cx);
3204 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3205 let multi_buffer_visible_start = self
3206 .scroll_manager
3207 .anchor()
3208 .anchor
3209 .to_point(&multi_buffer_snapshot);
3210 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3211 multi_buffer_visible_start
3212 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3213 Bias::Left,
3214 );
3215 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3216 multi_buffer
3217 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3218 .into_iter()
3219 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3220 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3221 let buffer = buffer_handle.read(cx);
3222 let buffer_file = project::File::from_dyn(buffer.file())?;
3223 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3224 let worktree_entry = buffer_worktree
3225 .read(cx)
3226 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3227 if worktree_entry.is_ignored {
3228 return None;
3229 }
3230
3231 let language = buffer.language()?;
3232 if let Some(restrict_to_languages) = restrict_to_languages {
3233 if !restrict_to_languages.contains(language) {
3234 return None;
3235 }
3236 }
3237 Some((
3238 excerpt_id,
3239 (
3240 buffer_handle,
3241 buffer.version().clone(),
3242 excerpt_visible_range,
3243 ),
3244 ))
3245 })
3246 .collect()
3247 }
3248
3249 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3250 TextLayoutDetails {
3251 text_system: cx.text_system().clone(),
3252 editor_style: self.style.clone().unwrap(),
3253 rem_size: cx.rem_size(),
3254 scroll_anchor: self.scroll_manager.anchor(),
3255 visible_rows: self.visible_line_count(),
3256 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3257 }
3258 }
3259
3260 fn splice_inlays(
3261 &self,
3262 to_remove: Vec<InlayId>,
3263 to_insert: Vec<Inlay>,
3264 cx: &mut ViewContext<Self>,
3265 ) {
3266 self.display_map.update(cx, |display_map, cx| {
3267 display_map.splice_inlays(to_remove, to_insert, cx);
3268 });
3269 cx.notify();
3270 }
3271
3272 fn trigger_on_type_formatting(
3273 &self,
3274 input: String,
3275 cx: &mut ViewContext<Self>,
3276 ) -> Option<Task<Result<()>>> {
3277 if input.len() != 1 {
3278 return None;
3279 }
3280
3281 let project = self.project.as_ref()?;
3282 let position = self.selections.newest_anchor().head();
3283 let (buffer, buffer_position) = self
3284 .buffer
3285 .read(cx)
3286 .text_anchor_for_position(position, cx)?;
3287
3288 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3289 // hence we do LSP request & edit on host side only — add formats to host's history.
3290 let push_to_lsp_host_history = true;
3291 // If this is not the host, append its history with new edits.
3292 let push_to_client_history = project.read(cx).is_remote();
3293
3294 let on_type_formatting = project.update(cx, |project, cx| {
3295 project.on_type_format(
3296 buffer.clone(),
3297 buffer_position,
3298 input,
3299 push_to_lsp_host_history,
3300 cx,
3301 )
3302 });
3303 Some(cx.spawn(|editor, mut cx| async move {
3304 if let Some(transaction) = on_type_formatting.await? {
3305 if push_to_client_history {
3306 buffer
3307 .update(&mut cx, |buffer, _| {
3308 buffer.push_transaction(transaction, Instant::now());
3309 })
3310 .ok();
3311 }
3312 editor.update(&mut cx, |editor, cx| {
3313 editor.refresh_document_highlights(cx);
3314 })?;
3315 }
3316 Ok(())
3317 }))
3318 }
3319
3320 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3321 if self.pending_rename.is_some() {
3322 return;
3323 }
3324
3325 let Some(provider) = self.completion_provider.as_ref() else {
3326 return;
3327 };
3328
3329 let position = self.selections.newest_anchor().head();
3330 let (buffer, buffer_position) =
3331 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3332 output
3333 } else {
3334 return;
3335 };
3336
3337 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3338 let completions = provider.completions(&buffer, buffer_position, cx);
3339
3340 let id = post_inc(&mut self.next_completion_id);
3341 let task = cx.spawn(|this, mut cx| {
3342 async move {
3343 let completions = completions.await.log_err();
3344 let menu = if let Some(completions) = completions {
3345 let mut menu = CompletionsMenu {
3346 id,
3347 initial_position: position,
3348 match_candidates: completions
3349 .iter()
3350 .enumerate()
3351 .map(|(id, completion)| {
3352 StringMatchCandidate::new(
3353 id,
3354 completion.label.text[completion.label.filter_range.clone()]
3355 .into(),
3356 )
3357 })
3358 .collect(),
3359 buffer,
3360 completions: Arc::new(RwLock::new(completions.into())),
3361 matches: Vec::new().into(),
3362 selected_item: 0,
3363 scroll_handle: UniformListScrollHandle::new(),
3364 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3365 DebouncedDelay::new(),
3366 )),
3367 };
3368 menu.filter(query.as_deref(), cx.background_executor().clone())
3369 .await;
3370
3371 if menu.matches.is_empty() {
3372 None
3373 } else {
3374 this.update(&mut cx, |editor, cx| {
3375 let completions = menu.completions.clone();
3376 let matches = menu.matches.clone();
3377
3378 let delay_ms = EditorSettings::get_global(cx)
3379 .completion_documentation_secondary_query_debounce;
3380 let delay = Duration::from_millis(delay_ms);
3381
3382 editor
3383 .completion_documentation_pre_resolve_debounce
3384 .fire_new(delay, cx, |editor, cx| {
3385 CompletionsMenu::pre_resolve_completion_documentation(
3386 completions,
3387 matches,
3388 editor,
3389 cx,
3390 )
3391 });
3392 })
3393 .ok();
3394 Some(menu)
3395 }
3396 } else {
3397 None
3398 };
3399
3400 this.update(&mut cx, |this, cx| {
3401 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3402
3403 let mut context_menu = this.context_menu.write();
3404 match context_menu.as_ref() {
3405 None => {}
3406
3407 Some(ContextMenu::Completions(prev_menu)) => {
3408 if prev_menu.id > id {
3409 return;
3410 }
3411 }
3412
3413 _ => return,
3414 }
3415
3416 if this.focus_handle.is_focused(cx) && menu.is_some() {
3417 let menu = menu.unwrap();
3418 *context_menu = Some(ContextMenu::Completions(menu));
3419 drop(context_menu);
3420 this.discard_inline_completion(cx);
3421 cx.notify();
3422 } else if this.completion_tasks.len() <= 1 {
3423 // If there are no more completion tasks and the last menu was
3424 // empty, we should hide it. If it was already hidden, we should
3425 // also show the copilot completion when available.
3426 drop(context_menu);
3427 if this.hide_context_menu(cx).is_none() {
3428 this.update_visible_inline_completion(cx);
3429 }
3430 }
3431 })?;
3432
3433 Ok::<_, anyhow::Error>(())
3434 }
3435 .log_err()
3436 });
3437
3438 self.completion_tasks.push((id, task));
3439 }
3440
3441 pub fn confirm_completion(
3442 &mut self,
3443 action: &ConfirmCompletion,
3444 cx: &mut ViewContext<Self>,
3445 ) -> Option<Task<Result<()>>> {
3446 use language::ToOffset as _;
3447
3448 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3449 menu
3450 } else {
3451 return None;
3452 };
3453
3454 let mat = completions_menu
3455 .matches
3456 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3457 let buffer_handle = completions_menu.buffer;
3458 let completions = completions_menu.completions.read();
3459 let completion = completions.get(mat.candidate_id)?;
3460 cx.stop_propagation();
3461
3462 let snippet;
3463 let text;
3464 if completion.is_snippet() {
3465 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3466 text = snippet.as_ref().unwrap().text.clone();
3467 } else {
3468 snippet = None;
3469 text = completion.new_text.clone();
3470 };
3471 let selections = self.selections.all::<usize>(cx);
3472 let buffer = buffer_handle.read(cx);
3473 let old_range = completion.old_range.to_offset(buffer);
3474 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3475
3476 let newest_selection = self.selections.newest_anchor();
3477 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3478 return None;
3479 }
3480
3481 let lookbehind = newest_selection
3482 .start
3483 .text_anchor
3484 .to_offset(buffer)
3485 .saturating_sub(old_range.start);
3486 let lookahead = old_range
3487 .end
3488 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3489 let mut common_prefix_len = old_text
3490 .bytes()
3491 .zip(text.bytes())
3492 .take_while(|(a, b)| a == b)
3493 .count();
3494
3495 let snapshot = self.buffer.read(cx).snapshot(cx);
3496 let mut range_to_replace: Option<Range<isize>> = None;
3497 let mut ranges = Vec::new();
3498 for selection in &selections {
3499 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3500 let start = selection.start.saturating_sub(lookbehind);
3501 let end = selection.end + lookahead;
3502 if selection.id == newest_selection.id {
3503 range_to_replace = Some(
3504 ((start + common_prefix_len) as isize - selection.start as isize)
3505 ..(end as isize - selection.start as isize),
3506 );
3507 }
3508 ranges.push(start + common_prefix_len..end);
3509 } else {
3510 common_prefix_len = 0;
3511 ranges.clear();
3512 ranges.extend(selections.iter().map(|s| {
3513 if s.id == newest_selection.id {
3514 range_to_replace = Some(
3515 old_range.start.to_offset_utf16(&snapshot).0 as isize
3516 - selection.start as isize
3517 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3518 - selection.start as isize,
3519 );
3520 old_range.clone()
3521 } else {
3522 s.start..s.end
3523 }
3524 }));
3525 break;
3526 }
3527 }
3528 let text = &text[common_prefix_len..];
3529
3530 cx.emit(EditorEvent::InputHandled {
3531 utf16_range_to_replace: range_to_replace,
3532 text: text.into(),
3533 });
3534
3535 self.transact(cx, |this, cx| {
3536 if let Some(mut snippet) = snippet {
3537 snippet.text = text.to_string();
3538 for tabstop in snippet.tabstops.iter_mut().flatten() {
3539 tabstop.start -= common_prefix_len as isize;
3540 tabstop.end -= common_prefix_len as isize;
3541 }
3542
3543 this.insert_snippet(&ranges, snippet, cx).log_err();
3544 } else {
3545 this.buffer.update(cx, |buffer, cx| {
3546 buffer.edit(
3547 ranges.iter().map(|range| (range.clone(), text)),
3548 this.autoindent_mode.clone(),
3549 cx,
3550 );
3551 });
3552 }
3553
3554 this.refresh_inline_completion(true, cx);
3555 });
3556
3557 let provider = self.completion_provider.as_ref()?;
3558 let apply_edits = provider.apply_additional_edits_for_completion(
3559 buffer_handle,
3560 completion.clone(),
3561 true,
3562 cx,
3563 );
3564 Some(cx.foreground_executor().spawn(async move {
3565 apply_edits.await?;
3566 Ok(())
3567 }))
3568 }
3569
3570 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3571 let mut context_menu = self.context_menu.write();
3572 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3573 *context_menu = None;
3574 cx.notify();
3575 return;
3576 }
3577 drop(context_menu);
3578
3579 let deployed_from_indicator = action.deployed_from_indicator;
3580 let mut task = self.code_actions_task.take();
3581 cx.spawn(|this, mut cx| async move {
3582 while let Some(prev_task) = task {
3583 prev_task.await;
3584 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3585 }
3586
3587 this.update(&mut cx, |this, cx| {
3588 if this.focus_handle.is_focused(cx) {
3589 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3590 this.completion_tasks.clear();
3591 this.discard_inline_completion(cx);
3592 *this.context_menu.write() =
3593 Some(ContextMenu::CodeActions(CodeActionsMenu {
3594 buffer,
3595 actions,
3596 selected_item: Default::default(),
3597 scroll_handle: UniformListScrollHandle::default(),
3598 deployed_from_indicator,
3599 }));
3600 cx.notify();
3601 }
3602 }
3603 })?;
3604
3605 Ok::<_, anyhow::Error>(())
3606 })
3607 .detach_and_log_err(cx);
3608 }
3609
3610 pub fn confirm_code_action(
3611 &mut self,
3612 action: &ConfirmCodeAction,
3613 cx: &mut ViewContext<Self>,
3614 ) -> Option<Task<Result<()>>> {
3615 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3616 menu
3617 } else {
3618 return None;
3619 };
3620 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3621 let action = actions_menu.actions.get(action_ix)?.clone();
3622 let title = action.lsp_action.title.clone();
3623 let buffer = actions_menu.buffer;
3624 let workspace = self.workspace()?;
3625
3626 let apply_code_actions = workspace
3627 .read(cx)
3628 .project()
3629 .clone()
3630 .update(cx, |project, cx| {
3631 project.apply_code_action(buffer, action, true, cx)
3632 });
3633 let workspace = workspace.downgrade();
3634 Some(cx.spawn(|editor, cx| async move {
3635 let project_transaction = apply_code_actions.await?;
3636 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3637 }))
3638 }
3639
3640 async fn open_project_transaction(
3641 this: &WeakView<Editor>,
3642 workspace: WeakView<Workspace>,
3643 transaction: ProjectTransaction,
3644 title: String,
3645 mut cx: AsyncWindowContext,
3646 ) -> Result<()> {
3647 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3648
3649 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3650 cx.update(|cx| {
3651 entries.sort_unstable_by_key(|(buffer, _)| {
3652 buffer.read(cx).file().map(|f| f.path().clone())
3653 });
3654 })?;
3655
3656 // If the project transaction's edits are all contained within this editor, then
3657 // avoid opening a new editor to display them.
3658
3659 if let Some((buffer, transaction)) = entries.first() {
3660 if entries.len() == 1 {
3661 let excerpt = this.update(&mut cx, |editor, cx| {
3662 editor
3663 .buffer()
3664 .read(cx)
3665 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3666 })?;
3667 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3668 if excerpted_buffer == *buffer {
3669 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3670 let excerpt_range = excerpt_range.to_offset(buffer);
3671 buffer
3672 .edited_ranges_for_transaction::<usize>(transaction)
3673 .all(|range| {
3674 excerpt_range.start <= range.start
3675 && excerpt_range.end >= range.end
3676 })
3677 })?;
3678
3679 if all_edits_within_excerpt {
3680 return Ok(());
3681 }
3682 }
3683 }
3684 }
3685 } else {
3686 return Ok(());
3687 }
3688
3689 let mut ranges_to_highlight = Vec::new();
3690 let excerpt_buffer = cx.new_model(|cx| {
3691 let mut multibuffer =
3692 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3693 for (buffer_handle, transaction) in &entries {
3694 let buffer = buffer_handle.read(cx);
3695 ranges_to_highlight.extend(
3696 multibuffer.push_excerpts_with_context_lines(
3697 buffer_handle.clone(),
3698 buffer
3699 .edited_ranges_for_transaction::<usize>(transaction)
3700 .collect(),
3701 1,
3702 cx,
3703 ),
3704 );
3705 }
3706 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3707 multibuffer
3708 })?;
3709
3710 workspace.update(&mut cx, |workspace, cx| {
3711 let project = workspace.project().clone();
3712 let editor =
3713 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3714 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3715 editor.update(cx, |editor, cx| {
3716 editor.highlight_background::<Self>(
3717 ranges_to_highlight,
3718 |theme| theme.editor_highlighted_line_background,
3719 cx,
3720 );
3721 });
3722 })?;
3723
3724 Ok(())
3725 }
3726
3727 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3728 let project = self.project.clone()?;
3729 let buffer = self.buffer.read(cx);
3730 let newest_selection = self.selections.newest_anchor().clone();
3731 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3732 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3733 if start_buffer != end_buffer {
3734 return None;
3735 }
3736
3737 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3738 cx.background_executor()
3739 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3740 .await;
3741
3742 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3743 project.code_actions(&start_buffer, start..end, cx)
3744 }) {
3745 code_actions.await.log_err()
3746 } else {
3747 None
3748 };
3749
3750 this.update(&mut cx, |this, cx| {
3751 this.available_code_actions = actions.and_then(|actions| {
3752 if actions.is_empty() {
3753 None
3754 } else {
3755 Some((start_buffer, actions.into()))
3756 }
3757 });
3758 cx.notify();
3759 })
3760 .log_err();
3761 }));
3762 None
3763 }
3764
3765 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3766 if self.pending_rename.is_some() {
3767 return None;
3768 }
3769
3770 let project = self.project.clone()?;
3771 let buffer = self.buffer.read(cx);
3772 let newest_selection = self.selections.newest_anchor().clone();
3773 let cursor_position = newest_selection.head();
3774 let (cursor_buffer, cursor_buffer_position) =
3775 buffer.text_anchor_for_position(cursor_position, cx)?;
3776 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3777 if cursor_buffer != tail_buffer {
3778 return None;
3779 }
3780
3781 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3782 cx.background_executor()
3783 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3784 .await;
3785
3786 let highlights = if let Some(highlights) = project
3787 .update(&mut cx, |project, cx| {
3788 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3789 })
3790 .log_err()
3791 {
3792 highlights.await.log_err()
3793 } else {
3794 None
3795 };
3796
3797 if let Some(highlights) = highlights {
3798 this.update(&mut cx, |this, cx| {
3799 if this.pending_rename.is_some() {
3800 return;
3801 }
3802
3803 let buffer_id = cursor_position.buffer_id;
3804 let buffer = this.buffer.read(cx);
3805 if !buffer
3806 .text_anchor_for_position(cursor_position, cx)
3807 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3808 {
3809 return;
3810 }
3811
3812 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3813 let mut write_ranges = Vec::new();
3814 let mut read_ranges = Vec::new();
3815 for highlight in highlights {
3816 for (excerpt_id, excerpt_range) in
3817 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3818 {
3819 let start = highlight
3820 .range
3821 .start
3822 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3823 let end = highlight
3824 .range
3825 .end
3826 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3827 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3828 continue;
3829 }
3830
3831 let range = Anchor {
3832 buffer_id,
3833 excerpt_id: excerpt_id,
3834 text_anchor: start,
3835 }..Anchor {
3836 buffer_id,
3837 excerpt_id,
3838 text_anchor: end,
3839 };
3840 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3841 write_ranges.push(range);
3842 } else {
3843 read_ranges.push(range);
3844 }
3845 }
3846 }
3847
3848 this.highlight_background::<DocumentHighlightRead>(
3849 read_ranges,
3850 |theme| theme.editor_document_highlight_read_background,
3851 cx,
3852 );
3853 this.highlight_background::<DocumentHighlightWrite>(
3854 write_ranges,
3855 |theme| theme.editor_document_highlight_write_background,
3856 cx,
3857 );
3858 cx.notify();
3859 })
3860 .log_err();
3861 }
3862 }));
3863 None
3864 }
3865
3866 fn refresh_inline_completion(
3867 &mut self,
3868 debounce: bool,
3869 cx: &mut ViewContext<Self>,
3870 ) -> Option<()> {
3871 let provider = self.inline_completion_provider()?;
3872 let cursor = self.selections.newest_anchor().head();
3873 let (buffer, cursor_buffer_position) =
3874 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3875 if !self.show_inline_completions
3876 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3877 {
3878 self.clear_inline_completion(cx);
3879 return None;
3880 }
3881
3882 self.update_visible_inline_completion(cx);
3883 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
3884 Some(())
3885 }
3886
3887 fn cycle_inline_completion(
3888 &mut self,
3889 direction: Direction,
3890 cx: &mut ViewContext<Self>,
3891 ) -> Option<()> {
3892 let provider = self.inline_completion_provider()?;
3893 let cursor = self.selections.newest_anchor().head();
3894 let (buffer, cursor_buffer_position) =
3895 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3896 if !self.show_inline_completions
3897 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3898 {
3899 return None;
3900 }
3901
3902 provider.cycle(buffer, cursor_buffer_position, direction, cx);
3903 self.update_visible_inline_completion(cx);
3904
3905 Some(())
3906 }
3907
3908 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
3909 if !self.has_active_inline_completion(cx) {
3910 self.refresh_inline_completion(false, cx);
3911 return;
3912 }
3913
3914 self.update_visible_inline_completion(cx);
3915 }
3916
3917 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3918 self.show_cursor_names(cx);
3919 }
3920
3921 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3922 self.show_cursor_names = true;
3923 cx.notify();
3924 cx.spawn(|this, mut cx| async move {
3925 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3926 this.update(&mut cx, |this, cx| {
3927 this.show_cursor_names = false;
3928 cx.notify()
3929 })
3930 .ok()
3931 })
3932 .detach();
3933 }
3934
3935 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
3936 if self.has_active_inline_completion(cx) {
3937 self.cycle_inline_completion(Direction::Next, cx);
3938 } else {
3939 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3940 if is_copilot_disabled {
3941 cx.propagate();
3942 }
3943 }
3944 }
3945
3946 pub fn previous_inline_completion(
3947 &mut self,
3948 _: &PreviousInlineCompletion,
3949 cx: &mut ViewContext<Self>,
3950 ) {
3951 if self.has_active_inline_completion(cx) {
3952 self.cycle_inline_completion(Direction::Prev, cx);
3953 } else {
3954 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3955 if is_copilot_disabled {
3956 cx.propagate();
3957 }
3958 }
3959 }
3960
3961 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3962 if let Some(completion) = self.take_active_inline_completion(cx) {
3963 if let Some(provider) = self.inline_completion_provider() {
3964 provider.accept(cx);
3965 }
3966
3967 cx.emit(EditorEvent::InputHandled {
3968 utf16_range_to_replace: None,
3969 text: completion.text.to_string().into(),
3970 });
3971 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
3972 cx.notify();
3973 true
3974 } else {
3975 false
3976 }
3977 }
3978
3979 pub fn accept_partial_inline_completion(
3980 &mut self,
3981 _: &AcceptPartialInlineCompletion,
3982 cx: &mut ViewContext<Self>,
3983 ) {
3984 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
3985 if let Some(completion) = self.take_active_inline_completion(cx) {
3986 let mut partial_completion = completion
3987 .text
3988 .chars()
3989 .by_ref()
3990 .take_while(|c| c.is_alphabetic())
3991 .collect::<String>();
3992 if partial_completion.is_empty() {
3993 partial_completion = completion
3994 .text
3995 .chars()
3996 .by_ref()
3997 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
3998 .collect::<String>();
3999 }
4000
4001 cx.emit(EditorEvent::InputHandled {
4002 utf16_range_to_replace: None,
4003 text: partial_completion.clone().into(),
4004 });
4005 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4006 self.refresh_inline_completion(true, cx);
4007 cx.notify();
4008 }
4009 }
4010 }
4011
4012 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4013 if let Some(provider) = self.inline_completion_provider() {
4014 provider.discard(cx);
4015 }
4016
4017 self.take_active_inline_completion(cx).is_some()
4018 }
4019
4020 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4021 if let Some(completion) = self.active_inline_completion.as_ref() {
4022 let buffer = self.buffer.read(cx).read(cx);
4023 completion.position.is_valid(&buffer)
4024 } else {
4025 false
4026 }
4027 }
4028
4029 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4030 let completion = self.active_inline_completion.take()?;
4031 self.display_map.update(cx, |map, cx| {
4032 map.splice_inlays(vec![completion.id], Default::default(), cx);
4033 });
4034 let buffer = self.buffer.read(cx).read(cx);
4035
4036 if completion.position.is_valid(&buffer) {
4037 Some(completion)
4038 } else {
4039 None
4040 }
4041 }
4042
4043 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4044 let selection = self.selections.newest_anchor();
4045 let cursor = selection.head();
4046
4047 if self.context_menu.read().is_none()
4048 && self.completion_tasks.is_empty()
4049 && selection.start == selection.end
4050 {
4051 if let Some(provider) = self.inline_completion_provider() {
4052 if let Some((buffer, cursor_buffer_position)) =
4053 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4054 {
4055 if let Some(text) =
4056 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4057 {
4058 let text = Rope::from(text);
4059 let mut to_remove = Vec::new();
4060 if let Some(completion) = self.active_inline_completion.take() {
4061 to_remove.push(completion.id);
4062 }
4063
4064 let completion_inlay =
4065 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4066 self.active_inline_completion = Some(completion_inlay.clone());
4067 self.display_map.update(cx, move |map, cx| {
4068 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4069 });
4070 cx.notify();
4071 return;
4072 }
4073 }
4074 }
4075 }
4076
4077 self.discard_inline_completion(cx);
4078 }
4079
4080 fn clear_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4081 if let Some(old_completion) = self.active_inline_completion.take() {
4082 self.splice_inlays(vec![old_completion.id], Vec::new(), cx);
4083 }
4084 self.discard_inline_completion(cx);
4085 }
4086
4087 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4088 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4089 }
4090
4091 pub fn render_code_actions_indicator(
4092 &self,
4093 _style: &EditorStyle,
4094 is_active: bool,
4095 cx: &mut ViewContext<Self>,
4096 ) -> Option<IconButton> {
4097 if self.available_code_actions.is_some() {
4098 Some(
4099 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4100 .icon_size(IconSize::XSmall)
4101 .size(ui::ButtonSize::None)
4102 .icon_color(Color::Muted)
4103 .selected(is_active)
4104 .on_click(cx.listener(|editor, _e, cx| {
4105 editor.toggle_code_actions(
4106 &ToggleCodeActions {
4107 deployed_from_indicator: true,
4108 },
4109 cx,
4110 );
4111 })),
4112 )
4113 } else {
4114 None
4115 }
4116 }
4117
4118 pub fn render_fold_indicators(
4119 &mut self,
4120 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4121 _style: &EditorStyle,
4122 gutter_hovered: bool,
4123 _line_height: Pixels,
4124 _gutter_margin: Pixels,
4125 cx: &mut ViewContext<Self>,
4126 ) -> Vec<Option<AnyElement>> {
4127 fold_data
4128 .iter()
4129 .enumerate()
4130 .map(|(ix, fold_data)| {
4131 fold_data
4132 .map(|(fold_status, buffer_row, active)| {
4133 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4134 IconButton::new(ix, ui::IconName::ChevronDown)
4135 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4136 FoldStatus::Folded => {
4137 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4138 }
4139 FoldStatus::Foldable => {
4140 this.fold_at(&FoldAt { buffer_row }, cx);
4141 }
4142 }))
4143 .icon_color(ui::Color::Muted)
4144 .icon_size(ui::IconSize::Small)
4145 .selected(fold_status == FoldStatus::Folded)
4146 .selected_icon(ui::IconName::ChevronRight)
4147 .size(ui::ButtonSize::None)
4148 .into_any_element()
4149 })
4150 })
4151 .flatten()
4152 })
4153 .collect()
4154 }
4155
4156 pub fn context_menu_visible(&self) -> bool {
4157 self.context_menu
4158 .read()
4159 .as_ref()
4160 .map_or(false, |menu| menu.visible())
4161 }
4162
4163 pub fn render_context_menu(
4164 &self,
4165 cursor_position: DisplayPoint,
4166 style: &EditorStyle,
4167 max_height: Pixels,
4168 cx: &mut ViewContext<Editor>,
4169 ) -> Option<(DisplayPoint, AnyElement)> {
4170 self.context_menu.read().as_ref().map(|menu| {
4171 menu.render(
4172 cursor_position,
4173 style,
4174 max_height,
4175 self.workspace.as_ref().map(|(w, _)| w.clone()),
4176 cx,
4177 )
4178 })
4179 }
4180
4181 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4182 cx.notify();
4183 self.completion_tasks.clear();
4184 let context_menu = self.context_menu.write().take();
4185 if context_menu.is_some() {
4186 self.update_visible_inline_completion(cx);
4187 }
4188 context_menu
4189 }
4190
4191 pub fn insert_snippet(
4192 &mut self,
4193 insertion_ranges: &[Range<usize>],
4194 snippet: Snippet,
4195 cx: &mut ViewContext<Self>,
4196 ) -> Result<()> {
4197 let tabstops = self.buffer.update(cx, |buffer, cx| {
4198 let snippet_text: Arc<str> = snippet.text.clone().into();
4199 buffer.edit(
4200 insertion_ranges
4201 .iter()
4202 .cloned()
4203 .map(|range| (range, snippet_text.clone())),
4204 Some(AutoindentMode::EachLine),
4205 cx,
4206 );
4207
4208 let snapshot = &*buffer.read(cx);
4209 let snippet = &snippet;
4210 snippet
4211 .tabstops
4212 .iter()
4213 .map(|tabstop| {
4214 let mut tabstop_ranges = tabstop
4215 .iter()
4216 .flat_map(|tabstop_range| {
4217 let mut delta = 0_isize;
4218 insertion_ranges.iter().map(move |insertion_range| {
4219 let insertion_start = insertion_range.start as isize + delta;
4220 delta +=
4221 snippet.text.len() as isize - insertion_range.len() as isize;
4222
4223 let start = snapshot.anchor_before(
4224 (insertion_start + tabstop_range.start) as usize,
4225 );
4226 let end = snapshot
4227 .anchor_after((insertion_start + tabstop_range.end) as usize);
4228 start..end
4229 })
4230 })
4231 .collect::<Vec<_>>();
4232 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4233 tabstop_ranges
4234 })
4235 .collect::<Vec<_>>()
4236 });
4237
4238 if let Some(tabstop) = tabstops.first() {
4239 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4240 s.select_ranges(tabstop.iter().cloned());
4241 });
4242 self.snippet_stack.push(SnippetState {
4243 active_index: 0,
4244 ranges: tabstops,
4245 });
4246
4247 // Check whether the just-entered snippet ends with an auto-closable bracket.
4248 if self.autoclose_regions.is_empty() {
4249 let snapshot = self.buffer.read(cx).snapshot(cx);
4250 for selection in &mut self.selections.all::<Point>(cx) {
4251 let selection_head = selection.head();
4252 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4253 continue;
4254 };
4255
4256 let mut bracket_pair = None;
4257 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4258 let prev_chars = snapshot
4259 .reversed_chars_at(selection_head)
4260 .collect::<String>();
4261 for (pair, enabled) in scope.brackets() {
4262 if enabled
4263 && pair.close
4264 && prev_chars.starts_with(pair.start.as_str())
4265 && next_chars.starts_with(pair.end.as_str())
4266 {
4267 bracket_pair = Some(pair.clone());
4268 break;
4269 }
4270 }
4271 if let Some(pair) = bracket_pair {
4272 let start = snapshot.anchor_after(selection_head);
4273 let end = snapshot.anchor_after(selection_head);
4274 self.autoclose_regions.push(AutocloseRegion {
4275 selection_id: selection.id,
4276 range: start..end,
4277 pair,
4278 });
4279 }
4280 }
4281 }
4282 }
4283 Ok(())
4284 }
4285
4286 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4287 self.move_to_snippet_tabstop(Bias::Right, cx)
4288 }
4289
4290 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4291 self.move_to_snippet_tabstop(Bias::Left, cx)
4292 }
4293
4294 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4295 if let Some(mut snippet) = self.snippet_stack.pop() {
4296 match bias {
4297 Bias::Left => {
4298 if snippet.active_index > 0 {
4299 snippet.active_index -= 1;
4300 } else {
4301 self.snippet_stack.push(snippet);
4302 return false;
4303 }
4304 }
4305 Bias::Right => {
4306 if snippet.active_index + 1 < snippet.ranges.len() {
4307 snippet.active_index += 1;
4308 } else {
4309 self.snippet_stack.push(snippet);
4310 return false;
4311 }
4312 }
4313 }
4314 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4315 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4316 s.select_anchor_ranges(current_ranges.iter().cloned())
4317 });
4318 // If snippet state is not at the last tabstop, push it back on the stack
4319 if snippet.active_index + 1 < snippet.ranges.len() {
4320 self.snippet_stack.push(snippet);
4321 }
4322 return true;
4323 }
4324 }
4325
4326 false
4327 }
4328
4329 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4330 self.transact(cx, |this, cx| {
4331 this.select_all(&SelectAll, cx);
4332 this.insert("", cx);
4333 });
4334 }
4335
4336 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4337 self.transact(cx, |this, cx| {
4338 this.select_autoclose_pair(cx);
4339 let mut selections = this.selections.all::<Point>(cx);
4340 if !this.selections.line_mode {
4341 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4342 for selection in &mut selections {
4343 if selection.is_empty() {
4344 let old_head = selection.head();
4345 let mut new_head =
4346 movement::left(&display_map, old_head.to_display_point(&display_map))
4347 .to_point(&display_map);
4348 if let Some((buffer, line_buffer_range)) = display_map
4349 .buffer_snapshot
4350 .buffer_line_for_row(old_head.row)
4351 {
4352 let indent_size =
4353 buffer.indent_size_for_line(line_buffer_range.start.row);
4354 let indent_len = match indent_size.kind {
4355 IndentKind::Space => {
4356 buffer.settings_at(line_buffer_range.start, cx).tab_size
4357 }
4358 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4359 };
4360 if old_head.column <= indent_size.len && old_head.column > 0 {
4361 let indent_len = indent_len.get();
4362 new_head = cmp::min(
4363 new_head,
4364 Point::new(
4365 old_head.row,
4366 ((old_head.column - 1) / indent_len) * indent_len,
4367 ),
4368 );
4369 }
4370 }
4371
4372 selection.set_head(new_head, SelectionGoal::None);
4373 }
4374 }
4375 }
4376
4377 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4378 this.insert("", cx);
4379 this.refresh_inline_completion(true, cx);
4380 });
4381 }
4382
4383 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4384 self.transact(cx, |this, cx| {
4385 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4386 let line_mode = s.line_mode;
4387 s.move_with(|map, selection| {
4388 if selection.is_empty() && !line_mode {
4389 let cursor = movement::right(map, selection.head());
4390 selection.end = cursor;
4391 selection.reversed = true;
4392 selection.goal = SelectionGoal::None;
4393 }
4394 })
4395 });
4396 this.insert("", cx);
4397 this.refresh_inline_completion(true, cx);
4398 });
4399 }
4400
4401 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4402 if self.move_to_prev_snippet_tabstop(cx) {
4403 return;
4404 }
4405
4406 self.outdent(&Outdent, cx);
4407 }
4408
4409 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4410 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4411 return;
4412 }
4413
4414 let mut selections = self.selections.all_adjusted(cx);
4415 let buffer = self.buffer.read(cx);
4416 let snapshot = buffer.snapshot(cx);
4417 let rows_iter = selections.iter().map(|s| s.head().row);
4418 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4419
4420 let mut edits = Vec::new();
4421 let mut prev_edited_row = 0;
4422 let mut row_delta = 0;
4423 for selection in &mut selections {
4424 if selection.start.row != prev_edited_row {
4425 row_delta = 0;
4426 }
4427 prev_edited_row = selection.end.row;
4428
4429 // If the selection is non-empty, then increase the indentation of the selected lines.
4430 if !selection.is_empty() {
4431 row_delta =
4432 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4433 continue;
4434 }
4435
4436 // If the selection is empty and the cursor is in the leading whitespace before the
4437 // suggested indentation, then auto-indent the line.
4438 let cursor = selection.head();
4439 let current_indent = snapshot.indent_size_for_line(cursor.row);
4440 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4441 if cursor.column < suggested_indent.len
4442 && cursor.column <= current_indent.len
4443 && current_indent.len <= suggested_indent.len
4444 {
4445 selection.start = Point::new(cursor.row, suggested_indent.len);
4446 selection.end = selection.start;
4447 if row_delta == 0 {
4448 edits.extend(Buffer::edit_for_indent_size_adjustment(
4449 cursor.row,
4450 current_indent,
4451 suggested_indent,
4452 ));
4453 row_delta = suggested_indent.len - current_indent.len;
4454 }
4455 continue;
4456 }
4457 }
4458
4459 // Accept copilot completion if there is only one selection and the cursor is not
4460 // in the leading whitespace.
4461 if self.selections.count() == 1
4462 && cursor.column >= current_indent.len
4463 && self.has_active_inline_completion(cx)
4464 {
4465 self.accept_inline_completion(cx);
4466 return;
4467 }
4468
4469 // Otherwise, insert a hard or soft tab.
4470 let settings = buffer.settings_at(cursor, cx);
4471 let tab_size = if settings.hard_tabs {
4472 IndentSize::tab()
4473 } else {
4474 let tab_size = settings.tab_size.get();
4475 let char_column = snapshot
4476 .text_for_range(Point::new(cursor.row, 0)..cursor)
4477 .flat_map(str::chars)
4478 .count()
4479 + row_delta as usize;
4480 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4481 IndentSize::spaces(chars_to_next_tab_stop)
4482 };
4483 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4484 selection.end = selection.start;
4485 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4486 row_delta += tab_size.len;
4487 }
4488
4489 self.transact(cx, |this, cx| {
4490 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4491 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4492 this.refresh_inline_completion(true, cx);
4493 });
4494 }
4495
4496 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4497 if self.read_only(cx) {
4498 return;
4499 }
4500 let mut selections = self.selections.all::<Point>(cx);
4501 let mut prev_edited_row = 0;
4502 let mut row_delta = 0;
4503 let mut edits = Vec::new();
4504 let buffer = self.buffer.read(cx);
4505 let snapshot = buffer.snapshot(cx);
4506 for selection in &mut selections {
4507 if selection.start.row != prev_edited_row {
4508 row_delta = 0;
4509 }
4510 prev_edited_row = selection.end.row;
4511
4512 row_delta =
4513 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4514 }
4515
4516 self.transact(cx, |this, cx| {
4517 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4518 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4519 });
4520 }
4521
4522 fn indent_selection(
4523 buffer: &MultiBuffer,
4524 snapshot: &MultiBufferSnapshot,
4525 selection: &mut Selection<Point>,
4526 edits: &mut Vec<(Range<Point>, String)>,
4527 delta_for_start_row: u32,
4528 cx: &AppContext,
4529 ) -> u32 {
4530 let settings = buffer.settings_at(selection.start, cx);
4531 let tab_size = settings.tab_size.get();
4532 let indent_kind = if settings.hard_tabs {
4533 IndentKind::Tab
4534 } else {
4535 IndentKind::Space
4536 };
4537 let mut start_row = selection.start.row;
4538 let mut end_row = selection.end.row + 1;
4539
4540 // If a selection ends at the beginning of a line, don't indent
4541 // that last line.
4542 if selection.end.column == 0 && selection.end.row > selection.start.row {
4543 end_row -= 1;
4544 }
4545
4546 // Avoid re-indenting a row that has already been indented by a
4547 // previous selection, but still update this selection's column
4548 // to reflect that indentation.
4549 if delta_for_start_row > 0 {
4550 start_row += 1;
4551 selection.start.column += delta_for_start_row;
4552 if selection.end.row == selection.start.row {
4553 selection.end.column += delta_for_start_row;
4554 }
4555 }
4556
4557 let mut delta_for_end_row = 0;
4558 for row in start_row..end_row {
4559 let current_indent = snapshot.indent_size_for_line(row);
4560 let indent_delta = match (current_indent.kind, indent_kind) {
4561 (IndentKind::Space, IndentKind::Space) => {
4562 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4563 IndentSize::spaces(columns_to_next_tab_stop)
4564 }
4565 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4566 (_, IndentKind::Tab) => IndentSize::tab(),
4567 };
4568
4569 let row_start = Point::new(row, 0);
4570 edits.push((
4571 row_start..row_start,
4572 indent_delta.chars().collect::<String>(),
4573 ));
4574
4575 // Update this selection's endpoints to reflect the indentation.
4576 if row == selection.start.row {
4577 selection.start.column += indent_delta.len;
4578 }
4579 if row == selection.end.row {
4580 selection.end.column += indent_delta.len;
4581 delta_for_end_row = indent_delta.len;
4582 }
4583 }
4584
4585 if selection.start.row == selection.end.row {
4586 delta_for_start_row + delta_for_end_row
4587 } else {
4588 delta_for_end_row
4589 }
4590 }
4591
4592 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4593 if self.read_only(cx) {
4594 return;
4595 }
4596 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4597 let selections = self.selections.all::<Point>(cx);
4598 let mut deletion_ranges = Vec::new();
4599 let mut last_outdent = None;
4600 {
4601 let buffer = self.buffer.read(cx);
4602 let snapshot = buffer.snapshot(cx);
4603 for selection in &selections {
4604 let settings = buffer.settings_at(selection.start, cx);
4605 let tab_size = settings.tab_size.get();
4606 let mut rows = selection.spanned_rows(false, &display_map);
4607
4608 // Avoid re-outdenting a row that has already been outdented by a
4609 // previous selection.
4610 if let Some(last_row) = last_outdent {
4611 if last_row == rows.start {
4612 rows.start += 1;
4613 }
4614 }
4615
4616 for row in rows {
4617 let indent_size = snapshot.indent_size_for_line(row);
4618 if indent_size.len > 0 {
4619 let deletion_len = match indent_size.kind {
4620 IndentKind::Space => {
4621 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4622 if columns_to_prev_tab_stop == 0 {
4623 tab_size
4624 } else {
4625 columns_to_prev_tab_stop
4626 }
4627 }
4628 IndentKind::Tab => 1,
4629 };
4630 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4631 last_outdent = Some(row);
4632 }
4633 }
4634 }
4635 }
4636
4637 self.transact(cx, |this, cx| {
4638 this.buffer.update(cx, |buffer, cx| {
4639 let empty_str: Arc<str> = "".into();
4640 buffer.edit(
4641 deletion_ranges
4642 .into_iter()
4643 .map(|range| (range, empty_str.clone())),
4644 None,
4645 cx,
4646 );
4647 });
4648 let selections = this.selections.all::<usize>(cx);
4649 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4650 });
4651 }
4652
4653 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4654 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4655 let selections = self.selections.all::<Point>(cx);
4656
4657 let mut new_cursors = Vec::new();
4658 let mut edit_ranges = Vec::new();
4659 let mut selections = selections.iter().peekable();
4660 while let Some(selection) = selections.next() {
4661 let mut rows = selection.spanned_rows(false, &display_map);
4662 let goal_display_column = selection.head().to_display_point(&display_map).column();
4663
4664 // Accumulate contiguous regions of rows that we want to delete.
4665 while let Some(next_selection) = selections.peek() {
4666 let next_rows = next_selection.spanned_rows(false, &display_map);
4667 if next_rows.start <= rows.end {
4668 rows.end = next_rows.end;
4669 selections.next().unwrap();
4670 } else {
4671 break;
4672 }
4673 }
4674
4675 let buffer = &display_map.buffer_snapshot;
4676 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4677 let edit_end;
4678 let cursor_buffer_row;
4679 if buffer.max_point().row >= rows.end {
4680 // If there's a line after the range, delete the \n from the end of the row range
4681 // and position the cursor on the next line.
4682 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4683 cursor_buffer_row = rows.end;
4684 } else {
4685 // If there isn't a line after the range, delete the \n from the line before the
4686 // start of the row range and position the cursor there.
4687 edit_start = edit_start.saturating_sub(1);
4688 edit_end = buffer.len();
4689 cursor_buffer_row = rows.start.saturating_sub(1);
4690 }
4691
4692 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4693 *cursor.column_mut() =
4694 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4695
4696 new_cursors.push((
4697 selection.id,
4698 buffer.anchor_after(cursor.to_point(&display_map)),
4699 ));
4700 edit_ranges.push(edit_start..edit_end);
4701 }
4702
4703 self.transact(cx, |this, cx| {
4704 let buffer = this.buffer.update(cx, |buffer, cx| {
4705 let empty_str: Arc<str> = "".into();
4706 buffer.edit(
4707 edit_ranges
4708 .into_iter()
4709 .map(|range| (range, empty_str.clone())),
4710 None,
4711 cx,
4712 );
4713 buffer.snapshot(cx)
4714 });
4715 let new_selections = new_cursors
4716 .into_iter()
4717 .map(|(id, cursor)| {
4718 let cursor = cursor.to_point(&buffer);
4719 Selection {
4720 id,
4721 start: cursor,
4722 end: cursor,
4723 reversed: false,
4724 goal: SelectionGoal::None,
4725 }
4726 })
4727 .collect();
4728
4729 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4730 s.select(new_selections);
4731 });
4732 });
4733 }
4734
4735 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4736 if self.read_only(cx) {
4737 return;
4738 }
4739 let mut row_ranges = Vec::<Range<u32>>::new();
4740 for selection in self.selections.all::<Point>(cx) {
4741 let start = selection.start.row;
4742 let end = if selection.start.row == selection.end.row {
4743 selection.start.row + 1
4744 } else {
4745 selection.end.row
4746 };
4747
4748 if let Some(last_row_range) = row_ranges.last_mut() {
4749 if start <= last_row_range.end {
4750 last_row_range.end = end;
4751 continue;
4752 }
4753 }
4754 row_ranges.push(start..end);
4755 }
4756
4757 let snapshot = self.buffer.read(cx).snapshot(cx);
4758 let mut cursor_positions = Vec::new();
4759 for row_range in &row_ranges {
4760 let anchor = snapshot.anchor_before(Point::new(
4761 row_range.end - 1,
4762 snapshot.line_len(row_range.end - 1),
4763 ));
4764 cursor_positions.push(anchor..anchor);
4765 }
4766
4767 self.transact(cx, |this, cx| {
4768 for row_range in row_ranges.into_iter().rev() {
4769 for row in row_range.rev() {
4770 let end_of_line = Point::new(row, snapshot.line_len(row));
4771 let indent = snapshot.indent_size_for_line(row + 1);
4772 let start_of_next_line = Point::new(row + 1, indent.len);
4773
4774 let replace = if snapshot.line_len(row + 1) > indent.len {
4775 " "
4776 } else {
4777 ""
4778 };
4779
4780 this.buffer.update(cx, |buffer, cx| {
4781 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4782 });
4783 }
4784 }
4785
4786 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4787 s.select_anchor_ranges(cursor_positions)
4788 });
4789 });
4790 }
4791
4792 pub fn sort_lines_case_sensitive(
4793 &mut self,
4794 _: &SortLinesCaseSensitive,
4795 cx: &mut ViewContext<Self>,
4796 ) {
4797 self.manipulate_lines(cx, |lines| lines.sort())
4798 }
4799
4800 pub fn sort_lines_case_insensitive(
4801 &mut self,
4802 _: &SortLinesCaseInsensitive,
4803 cx: &mut ViewContext<Self>,
4804 ) {
4805 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4806 }
4807
4808 pub fn unique_lines_case_insensitive(
4809 &mut self,
4810 _: &UniqueLinesCaseInsensitive,
4811 cx: &mut ViewContext<Self>,
4812 ) {
4813 self.manipulate_lines(cx, |lines| {
4814 let mut seen = HashSet::default();
4815 lines.retain(|line| seen.insert(line.to_lowercase()));
4816 })
4817 }
4818
4819 pub fn unique_lines_case_sensitive(
4820 &mut self,
4821 _: &UniqueLinesCaseSensitive,
4822 cx: &mut ViewContext<Self>,
4823 ) {
4824 self.manipulate_lines(cx, |lines| {
4825 let mut seen = HashSet::default();
4826 lines.retain(|line| seen.insert(*line));
4827 })
4828 }
4829
4830 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4831 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4832 if !revert_changes.is_empty() {
4833 self.transact(cx, |editor, cx| {
4834 editor.buffer().update(cx, |multi_buffer, cx| {
4835 for (buffer_id, buffer_revert_ranges) in revert_changes {
4836 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4837 buffer.update(cx, |buffer, cx| {
4838 buffer.edit(buffer_revert_ranges, None, cx);
4839 });
4840 }
4841 }
4842 });
4843 editor.change_selections(None, cx, |selections| selections.refresh());
4844 });
4845 }
4846 }
4847
4848 fn gather_revert_changes(
4849 &mut self,
4850 selections: &[Selection<Anchor>],
4851 cx: &mut ViewContext<'_, Editor>,
4852 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4853 let mut revert_changes = HashMap::default();
4854 self.buffer.update(cx, |multi_buffer, cx| {
4855 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4856 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4857 let head = selection.head();
4858 let tail = selection.tail();
4859 let start = tail.to_point(&multi_buffer_snapshot).row;
4860 let end = head.to_point(&multi_buffer_snapshot).row;
4861 if start > end {
4862 end..start
4863 } else {
4864 start..end
4865 }
4866 });
4867
4868 let mut processed_buffer_rows =
4869 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4870 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4871 let query_rows =
4872 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4873 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4874 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4875 // when the caret is just above or just below the deleted hunk.
4876 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4877 let related_to_selection = if allow_adjacent {
4878 hunk.associated_range.overlaps(&query_rows)
4879 || hunk.associated_range.start == query_rows.end
4880 || hunk.associated_range.end == query_rows.start
4881 } else {
4882 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4883 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4884 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4885 || selected_multi_buffer_rows.end == hunk.associated_range.start
4886 };
4887 if related_to_selection {
4888 if !processed_buffer_rows
4889 .entry(hunk.buffer_id)
4890 .or_default()
4891 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4892 {
4893 continue;
4894 }
4895 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4896 }
4897 }
4898 }
4899 });
4900 revert_changes
4901 }
4902
4903 fn prepare_revert_change(
4904 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4905 multi_buffer: &MultiBuffer,
4906 hunk: &DiffHunk<u32>,
4907 cx: &mut AppContext,
4908 ) -> Option<()> {
4909 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
4910 let buffer = buffer.read(cx);
4911 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
4912 let buffer_snapshot = buffer.snapshot();
4913 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
4914 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
4915 probe
4916 .0
4917 .start
4918 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
4919 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
4920 .then(probe.1.as_ref().cmp(original_text))
4921 }) {
4922 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
4923 Some(())
4924 } else {
4925 None
4926 }
4927 }
4928
4929 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4930 self.manipulate_lines(cx, |lines| lines.reverse())
4931 }
4932
4933 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4934 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4935 }
4936
4937 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4938 where
4939 Fn: FnMut(&mut Vec<&str>),
4940 {
4941 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4942 let buffer = self.buffer.read(cx).snapshot(cx);
4943
4944 let mut edits = Vec::new();
4945
4946 let selections = self.selections.all::<Point>(cx);
4947 let mut selections = selections.iter().peekable();
4948 let mut contiguous_row_selections = Vec::new();
4949 let mut new_selections = Vec::new();
4950 let mut added_lines = 0;
4951 let mut removed_lines = 0;
4952
4953 while let Some(selection) = selections.next() {
4954 let (start_row, end_row) = consume_contiguous_rows(
4955 &mut contiguous_row_selections,
4956 selection,
4957 &display_map,
4958 &mut selections,
4959 );
4960
4961 let start_point = Point::new(start_row, 0);
4962 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4963 let text = buffer
4964 .text_for_range(start_point..end_point)
4965 .collect::<String>();
4966
4967 let mut lines = text.split('\n').collect_vec();
4968
4969 let lines_before = lines.len();
4970 callback(&mut lines);
4971 let lines_after = lines.len();
4972
4973 edits.push((start_point..end_point, lines.join("\n")));
4974
4975 // Selections must change based on added and removed line count
4976 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4977 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4978 new_selections.push(Selection {
4979 id: selection.id,
4980 start: start_row,
4981 end: end_row,
4982 goal: SelectionGoal::None,
4983 reversed: selection.reversed,
4984 });
4985
4986 if lines_after > lines_before {
4987 added_lines += lines_after - lines_before;
4988 } else if lines_before > lines_after {
4989 removed_lines += lines_before - lines_after;
4990 }
4991 }
4992
4993 self.transact(cx, |this, cx| {
4994 let buffer = this.buffer.update(cx, |buffer, cx| {
4995 buffer.edit(edits, None, cx);
4996 buffer.snapshot(cx)
4997 });
4998
4999 // Recalculate offsets on newly edited buffer
5000 let new_selections = new_selections
5001 .iter()
5002 .map(|s| {
5003 let start_point = Point::new(s.start, 0);
5004 let end_point = Point::new(s.end, buffer.line_len(s.end));
5005 Selection {
5006 id: s.id,
5007 start: buffer.point_to_offset(start_point),
5008 end: buffer.point_to_offset(end_point),
5009 goal: s.goal,
5010 reversed: s.reversed,
5011 }
5012 })
5013 .collect();
5014
5015 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5016 s.select(new_selections);
5017 });
5018
5019 this.request_autoscroll(Autoscroll::fit(), cx);
5020 });
5021 }
5022
5023 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5024 self.manipulate_text(cx, |text| text.to_uppercase())
5025 }
5026
5027 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5028 self.manipulate_text(cx, |text| text.to_lowercase())
5029 }
5030
5031 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5032 self.manipulate_text(cx, |text| {
5033 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5034 // https://github.com/rutrum/convert-case/issues/16
5035 text.split('\n')
5036 .map(|line| line.to_case(Case::Title))
5037 .join("\n")
5038 })
5039 }
5040
5041 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5042 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5043 }
5044
5045 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5046 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5047 }
5048
5049 pub fn convert_to_upper_camel_case(
5050 &mut self,
5051 _: &ConvertToUpperCamelCase,
5052 cx: &mut ViewContext<Self>,
5053 ) {
5054 self.manipulate_text(cx, |text| {
5055 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5056 // https://github.com/rutrum/convert-case/issues/16
5057 text.split('\n')
5058 .map(|line| line.to_case(Case::UpperCamel))
5059 .join("\n")
5060 })
5061 }
5062
5063 pub fn convert_to_lower_camel_case(
5064 &mut self,
5065 _: &ConvertToLowerCamelCase,
5066 cx: &mut ViewContext<Self>,
5067 ) {
5068 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5069 }
5070
5071 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5072 where
5073 Fn: FnMut(&str) -> String,
5074 {
5075 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5076 let buffer = self.buffer.read(cx).snapshot(cx);
5077
5078 let mut new_selections = Vec::new();
5079 let mut edits = Vec::new();
5080 let mut selection_adjustment = 0i32;
5081
5082 for selection in self.selections.all::<usize>(cx) {
5083 let selection_is_empty = selection.is_empty();
5084
5085 let (start, end) = if selection_is_empty {
5086 let word_range = movement::surrounding_word(
5087 &display_map,
5088 selection.start.to_display_point(&display_map),
5089 );
5090 let start = word_range.start.to_offset(&display_map, Bias::Left);
5091 let end = word_range.end.to_offset(&display_map, Bias::Left);
5092 (start, end)
5093 } else {
5094 (selection.start, selection.end)
5095 };
5096
5097 let text = buffer.text_for_range(start..end).collect::<String>();
5098 let old_length = text.len() as i32;
5099 let text = callback(&text);
5100
5101 new_selections.push(Selection {
5102 start: (start as i32 - selection_adjustment) as usize,
5103 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5104 goal: SelectionGoal::None,
5105 ..selection
5106 });
5107
5108 selection_adjustment += old_length - text.len() as i32;
5109
5110 edits.push((start..end, text));
5111 }
5112
5113 self.transact(cx, |this, cx| {
5114 this.buffer.update(cx, |buffer, cx| {
5115 buffer.edit(edits, None, cx);
5116 });
5117
5118 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5119 s.select(new_selections);
5120 });
5121
5122 this.request_autoscroll(Autoscroll::fit(), cx);
5123 });
5124 }
5125
5126 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5128 let buffer = &display_map.buffer_snapshot;
5129 let selections = self.selections.all::<Point>(cx);
5130
5131 let mut edits = Vec::new();
5132 let mut selections_iter = selections.iter().peekable();
5133 while let Some(selection) = selections_iter.next() {
5134 // Avoid duplicating the same lines twice.
5135 let mut rows = selection.spanned_rows(false, &display_map);
5136
5137 while let Some(next_selection) = selections_iter.peek() {
5138 let next_rows = next_selection.spanned_rows(false, &display_map);
5139 if next_rows.start < rows.end {
5140 rows.end = next_rows.end;
5141 selections_iter.next().unwrap();
5142 } else {
5143 break;
5144 }
5145 }
5146
5147 // Copy the text from the selected row region and splice it either at the start
5148 // or end of the region.
5149 let start = Point::new(rows.start, 0);
5150 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5151 let text = buffer
5152 .text_for_range(start..end)
5153 .chain(Some("\n"))
5154 .collect::<String>();
5155 let insert_location = if action.move_upwards {
5156 Point::new(rows.end, 0)
5157 } else {
5158 start
5159 };
5160 edits.push((insert_location..insert_location, text));
5161 }
5162
5163 self.transact(cx, |this, cx| {
5164 this.buffer.update(cx, |buffer, cx| {
5165 buffer.edit(edits, None, cx);
5166 });
5167
5168 this.request_autoscroll(Autoscroll::fit(), cx);
5169 });
5170 }
5171
5172 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5174 let buffer = self.buffer.read(cx).snapshot(cx);
5175
5176 let mut edits = Vec::new();
5177 let mut unfold_ranges = Vec::new();
5178 let mut refold_ranges = Vec::new();
5179
5180 let selections = self.selections.all::<Point>(cx);
5181 let mut selections = selections.iter().peekable();
5182 let mut contiguous_row_selections = Vec::new();
5183 let mut new_selections = Vec::new();
5184
5185 while let Some(selection) = selections.next() {
5186 // Find all the selections that span a contiguous row range
5187 let (start_row, end_row) = consume_contiguous_rows(
5188 &mut contiguous_row_selections,
5189 selection,
5190 &display_map,
5191 &mut selections,
5192 );
5193
5194 // Move the text spanned by the row range to be before the line preceding the row range
5195 if start_row > 0 {
5196 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5197 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5198 let insertion_point = display_map
5199 .prev_line_boundary(Point::new(start_row - 1, 0))
5200 .0;
5201
5202 // Don't move lines across excerpts
5203 if buffer
5204 .excerpt_boundaries_in_range((
5205 Bound::Excluded(insertion_point),
5206 Bound::Included(range_to_move.end),
5207 ))
5208 .next()
5209 .is_none()
5210 {
5211 let text = buffer
5212 .text_for_range(range_to_move.clone())
5213 .flat_map(|s| s.chars())
5214 .skip(1)
5215 .chain(['\n'])
5216 .collect::<String>();
5217
5218 edits.push((
5219 buffer.anchor_after(range_to_move.start)
5220 ..buffer.anchor_before(range_to_move.end),
5221 String::new(),
5222 ));
5223 let insertion_anchor = buffer.anchor_after(insertion_point);
5224 edits.push((insertion_anchor..insertion_anchor, text));
5225
5226 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5227
5228 // Move selections up
5229 new_selections.extend(contiguous_row_selections.drain(..).map(
5230 |mut selection| {
5231 selection.start.row -= row_delta;
5232 selection.end.row -= row_delta;
5233 selection
5234 },
5235 ));
5236
5237 // Move folds up
5238 unfold_ranges.push(range_to_move.clone());
5239 for fold in display_map.folds_in_range(
5240 buffer.anchor_before(range_to_move.start)
5241 ..buffer.anchor_after(range_to_move.end),
5242 ) {
5243 let mut start = fold.range.start.to_point(&buffer);
5244 let mut end = fold.range.end.to_point(&buffer);
5245 start.row -= row_delta;
5246 end.row -= row_delta;
5247 refold_ranges.push(start..end);
5248 }
5249 }
5250 }
5251
5252 // If we didn't move line(s), preserve the existing selections
5253 new_selections.append(&mut contiguous_row_selections);
5254 }
5255
5256 self.transact(cx, |this, cx| {
5257 this.unfold_ranges(unfold_ranges, true, true, cx);
5258 this.buffer.update(cx, |buffer, cx| {
5259 for (range, text) in edits {
5260 buffer.edit([(range, text)], None, cx);
5261 }
5262 });
5263 this.fold_ranges(refold_ranges, true, cx);
5264 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5265 s.select(new_selections);
5266 })
5267 });
5268 }
5269
5270 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5271 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5272 let buffer = self.buffer.read(cx).snapshot(cx);
5273
5274 let mut edits = Vec::new();
5275 let mut unfold_ranges = Vec::new();
5276 let mut refold_ranges = Vec::new();
5277
5278 let selections = self.selections.all::<Point>(cx);
5279 let mut selections = selections.iter().peekable();
5280 let mut contiguous_row_selections = Vec::new();
5281 let mut new_selections = Vec::new();
5282
5283 while let Some(selection) = selections.next() {
5284 // Find all the selections that span a contiguous row range
5285 let (start_row, end_row) = consume_contiguous_rows(
5286 &mut contiguous_row_selections,
5287 selection,
5288 &display_map,
5289 &mut selections,
5290 );
5291
5292 // Move the text spanned by the row range to be after the last line of the row range
5293 if end_row <= buffer.max_point().row {
5294 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5295 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5296
5297 // Don't move lines across excerpt boundaries
5298 if buffer
5299 .excerpt_boundaries_in_range((
5300 Bound::Excluded(range_to_move.start),
5301 Bound::Included(insertion_point),
5302 ))
5303 .next()
5304 .is_none()
5305 {
5306 let mut text = String::from("\n");
5307 text.extend(buffer.text_for_range(range_to_move.clone()));
5308 text.pop(); // Drop trailing newline
5309 edits.push((
5310 buffer.anchor_after(range_to_move.start)
5311 ..buffer.anchor_before(range_to_move.end),
5312 String::new(),
5313 ));
5314 let insertion_anchor = buffer.anchor_after(insertion_point);
5315 edits.push((insertion_anchor..insertion_anchor, text));
5316
5317 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5318
5319 // Move selections down
5320 new_selections.extend(contiguous_row_selections.drain(..).map(
5321 |mut selection| {
5322 selection.start.row += row_delta;
5323 selection.end.row += row_delta;
5324 selection
5325 },
5326 ));
5327
5328 // Move folds down
5329 unfold_ranges.push(range_to_move.clone());
5330 for fold in display_map.folds_in_range(
5331 buffer.anchor_before(range_to_move.start)
5332 ..buffer.anchor_after(range_to_move.end),
5333 ) {
5334 let mut start = fold.range.start.to_point(&buffer);
5335 let mut end = fold.range.end.to_point(&buffer);
5336 start.row += row_delta;
5337 end.row += row_delta;
5338 refold_ranges.push(start..end);
5339 }
5340 }
5341 }
5342
5343 // If we didn't move line(s), preserve the existing selections
5344 new_selections.append(&mut contiguous_row_selections);
5345 }
5346
5347 self.transact(cx, |this, cx| {
5348 this.unfold_ranges(unfold_ranges, true, true, cx);
5349 this.buffer.update(cx, |buffer, cx| {
5350 for (range, text) in edits {
5351 buffer.edit([(range, text)], None, cx);
5352 }
5353 });
5354 this.fold_ranges(refold_ranges, true, cx);
5355 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5356 });
5357 }
5358
5359 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5360 let text_layout_details = &self.text_layout_details(cx);
5361 self.transact(cx, |this, cx| {
5362 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5363 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5364 let line_mode = s.line_mode;
5365 s.move_with(|display_map, selection| {
5366 if !selection.is_empty() || line_mode {
5367 return;
5368 }
5369
5370 let mut head = selection.head();
5371 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5372 if head.column() == display_map.line_len(head.row()) {
5373 transpose_offset = display_map
5374 .buffer_snapshot
5375 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5376 }
5377
5378 if transpose_offset == 0 {
5379 return;
5380 }
5381
5382 *head.column_mut() += 1;
5383 head = display_map.clip_point(head, Bias::Right);
5384 let goal = SelectionGoal::HorizontalPosition(
5385 display_map
5386 .x_for_display_point(head, &text_layout_details)
5387 .into(),
5388 );
5389 selection.collapse_to(head, goal);
5390
5391 let transpose_start = display_map
5392 .buffer_snapshot
5393 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5394 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5395 let transpose_end = display_map
5396 .buffer_snapshot
5397 .clip_offset(transpose_offset + 1, Bias::Right);
5398 if let Some(ch) =
5399 display_map.buffer_snapshot.chars_at(transpose_start).next()
5400 {
5401 edits.push((transpose_start..transpose_offset, String::new()));
5402 edits.push((transpose_end..transpose_end, ch.to_string()));
5403 }
5404 }
5405 });
5406 edits
5407 });
5408 this.buffer
5409 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5410 let selections = this.selections.all::<usize>(cx);
5411 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5412 s.select(selections);
5413 });
5414 });
5415 }
5416
5417 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5418 let mut text = String::new();
5419 let buffer = self.buffer.read(cx).snapshot(cx);
5420 let mut selections = self.selections.all::<Point>(cx);
5421 let mut clipboard_selections = Vec::with_capacity(selections.len());
5422 {
5423 let max_point = buffer.max_point();
5424 let mut is_first = true;
5425 for selection in &mut selections {
5426 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5427 if is_entire_line {
5428 selection.start = Point::new(selection.start.row, 0);
5429 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5430 selection.goal = SelectionGoal::None;
5431 }
5432 if is_first {
5433 is_first = false;
5434 } else {
5435 text += "\n";
5436 }
5437 let mut len = 0;
5438 for chunk in buffer.text_for_range(selection.start..selection.end) {
5439 text.push_str(chunk);
5440 len += chunk.len();
5441 }
5442 clipboard_selections.push(ClipboardSelection {
5443 len,
5444 is_entire_line,
5445 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5446 });
5447 }
5448 }
5449
5450 self.transact(cx, |this, cx| {
5451 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5452 s.select(selections);
5453 });
5454 this.insert("", cx);
5455 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5456 });
5457 }
5458
5459 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5460 let selections = self.selections.all::<Point>(cx);
5461 let buffer = self.buffer.read(cx).read(cx);
5462 let mut text = String::new();
5463
5464 let mut clipboard_selections = Vec::with_capacity(selections.len());
5465 {
5466 let max_point = buffer.max_point();
5467 let mut is_first = true;
5468 for selection in selections.iter() {
5469 let mut start = selection.start;
5470 let mut end = selection.end;
5471 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5472 if is_entire_line {
5473 start = Point::new(start.row, 0);
5474 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5475 }
5476 if is_first {
5477 is_first = false;
5478 } else {
5479 text += "\n";
5480 }
5481 let mut len = 0;
5482 for chunk in buffer.text_for_range(start..end) {
5483 text.push_str(chunk);
5484 len += chunk.len();
5485 }
5486 clipboard_selections.push(ClipboardSelection {
5487 len,
5488 is_entire_line,
5489 first_line_indent: buffer.indent_size_for_line(start.row).len,
5490 });
5491 }
5492 }
5493
5494 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5495 }
5496
5497 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5498 if self.read_only(cx) {
5499 return;
5500 }
5501
5502 self.transact(cx, |this, cx| {
5503 if let Some(item) = cx.read_from_clipboard() {
5504 let clipboard_text = Cow::Borrowed(item.text());
5505 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5506 let old_selections = this.selections.all::<usize>(cx);
5507 let all_selections_were_entire_line =
5508 clipboard_selections.iter().all(|s| s.is_entire_line);
5509 let first_selection_indent_column =
5510 clipboard_selections.first().map(|s| s.first_line_indent);
5511 if clipboard_selections.len() != old_selections.len() {
5512 clipboard_selections.drain(..);
5513 }
5514
5515 this.buffer.update(cx, |buffer, cx| {
5516 let snapshot = buffer.read(cx);
5517 let mut start_offset = 0;
5518 let mut edits = Vec::new();
5519 let mut original_indent_columns = Vec::new();
5520 let line_mode = this.selections.line_mode;
5521 for (ix, selection) in old_selections.iter().enumerate() {
5522 let to_insert;
5523 let entire_line;
5524 let original_indent_column;
5525 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5526 let end_offset = start_offset + clipboard_selection.len;
5527 to_insert = &clipboard_text[start_offset..end_offset];
5528 entire_line = clipboard_selection.is_entire_line;
5529 start_offset = end_offset + 1;
5530 original_indent_column =
5531 Some(clipboard_selection.first_line_indent);
5532 } else {
5533 to_insert = clipboard_text.as_str();
5534 entire_line = all_selections_were_entire_line;
5535 original_indent_column = first_selection_indent_column
5536 }
5537
5538 // If the corresponding selection was empty when this slice of the
5539 // clipboard text was written, then the entire line containing the
5540 // selection was copied. If this selection is also currently empty,
5541 // then paste the line before the current line of the buffer.
5542 let range = if selection.is_empty() && !line_mode && entire_line {
5543 let column = selection.start.to_point(&snapshot).column as usize;
5544 let line_start = selection.start - column;
5545 line_start..line_start
5546 } else {
5547 selection.range()
5548 };
5549
5550 edits.push((range, to_insert));
5551 original_indent_columns.extend(original_indent_column);
5552 }
5553 drop(snapshot);
5554
5555 buffer.edit(
5556 edits,
5557 Some(AutoindentMode::Block {
5558 original_indent_columns,
5559 }),
5560 cx,
5561 );
5562 });
5563
5564 let selections = this.selections.all::<usize>(cx);
5565 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5566 } else {
5567 this.insert(&clipboard_text, cx);
5568 }
5569 }
5570 });
5571 }
5572
5573 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5574 if self.read_only(cx) {
5575 return;
5576 }
5577
5578 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5579 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5580 self.change_selections(None, cx, |s| {
5581 s.select_anchors(selections.to_vec());
5582 });
5583 }
5584 self.request_autoscroll(Autoscroll::fit(), cx);
5585 self.unmark_text(cx);
5586 self.refresh_inline_completion(true, cx);
5587 cx.emit(EditorEvent::Edited);
5588 cx.emit(EditorEvent::TransactionUndone {
5589 transaction_id: tx_id,
5590 });
5591 }
5592 }
5593
5594 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5595 if self.read_only(cx) {
5596 return;
5597 }
5598
5599 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5600 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5601 {
5602 self.change_selections(None, cx, |s| {
5603 s.select_anchors(selections.to_vec());
5604 });
5605 }
5606 self.request_autoscroll(Autoscroll::fit(), cx);
5607 self.unmark_text(cx);
5608 self.refresh_inline_completion(true, cx);
5609 cx.emit(EditorEvent::Edited);
5610 }
5611 }
5612
5613 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5614 self.buffer
5615 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5616 }
5617
5618 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5619 self.buffer
5620 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5621 }
5622
5623 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5625 let line_mode = s.line_mode;
5626 s.move_with(|map, selection| {
5627 let cursor = if selection.is_empty() && !line_mode {
5628 movement::left(map, selection.start)
5629 } else {
5630 selection.start
5631 };
5632 selection.collapse_to(cursor, SelectionGoal::None);
5633 });
5634 })
5635 }
5636
5637 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5639 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5640 })
5641 }
5642
5643 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5644 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5645 let line_mode = s.line_mode;
5646 s.move_with(|map, selection| {
5647 let cursor = if selection.is_empty() && !line_mode {
5648 movement::right(map, selection.end)
5649 } else {
5650 selection.end
5651 };
5652 selection.collapse_to(cursor, SelectionGoal::None)
5653 });
5654 })
5655 }
5656
5657 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5659 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5660 })
5661 }
5662
5663 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5664 if self.take_rename(true, cx).is_some() {
5665 return;
5666 }
5667
5668 if matches!(self.mode, EditorMode::SingleLine) {
5669 cx.propagate();
5670 return;
5671 }
5672
5673 let text_layout_details = &self.text_layout_details(cx);
5674
5675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5676 let line_mode = s.line_mode;
5677 s.move_with(|map, selection| {
5678 if !selection.is_empty() && !line_mode {
5679 selection.goal = SelectionGoal::None;
5680 }
5681 let (cursor, goal) = movement::up(
5682 map,
5683 selection.start,
5684 selection.goal,
5685 false,
5686 &text_layout_details,
5687 );
5688 selection.collapse_to(cursor, goal);
5689 });
5690 })
5691 }
5692
5693 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5694 if self.take_rename(true, cx).is_some() {
5695 return;
5696 }
5697
5698 if matches!(self.mode, EditorMode::SingleLine) {
5699 cx.propagate();
5700 return;
5701 }
5702
5703 let text_layout_details = &self.text_layout_details(cx);
5704
5705 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5706 let line_mode = s.line_mode;
5707 s.move_with(|map, selection| {
5708 if !selection.is_empty() && !line_mode {
5709 selection.goal = SelectionGoal::None;
5710 }
5711 let (cursor, goal) = movement::up_by_rows(
5712 map,
5713 selection.start,
5714 action.lines,
5715 selection.goal,
5716 false,
5717 &text_layout_details,
5718 );
5719 selection.collapse_to(cursor, goal);
5720 });
5721 })
5722 }
5723
5724 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5725 if self.take_rename(true, cx).is_some() {
5726 return;
5727 }
5728
5729 if matches!(self.mode, EditorMode::SingleLine) {
5730 cx.propagate();
5731 return;
5732 }
5733
5734 let text_layout_details = &self.text_layout_details(cx);
5735
5736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5737 let line_mode = s.line_mode;
5738 s.move_with(|map, selection| {
5739 if !selection.is_empty() && !line_mode {
5740 selection.goal = SelectionGoal::None;
5741 }
5742 let (cursor, goal) = movement::down_by_rows(
5743 map,
5744 selection.start,
5745 action.lines,
5746 selection.goal,
5747 false,
5748 &text_layout_details,
5749 );
5750 selection.collapse_to(cursor, goal);
5751 });
5752 })
5753 }
5754
5755 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5756 let text_layout_details = &self.text_layout_details(cx);
5757 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5758 s.move_heads_with(|map, head, goal| {
5759 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5760 })
5761 })
5762 }
5763
5764 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5765 let text_layout_details = &self.text_layout_details(cx);
5766 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5767 s.move_heads_with(|map, head, goal| {
5768 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5769 })
5770 })
5771 }
5772
5773 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5774 if self.take_rename(true, cx).is_some() {
5775 return;
5776 }
5777
5778 if matches!(self.mode, EditorMode::SingleLine) {
5779 cx.propagate();
5780 return;
5781 }
5782
5783 let row_count = if let Some(row_count) = self.visible_line_count() {
5784 row_count as u32 - 1
5785 } else {
5786 return;
5787 };
5788
5789 let autoscroll = if action.center_cursor {
5790 Autoscroll::center()
5791 } else {
5792 Autoscroll::fit()
5793 };
5794
5795 let text_layout_details = &self.text_layout_details(cx);
5796
5797 self.change_selections(Some(autoscroll), cx, |s| {
5798 let line_mode = s.line_mode;
5799 s.move_with(|map, selection| {
5800 if !selection.is_empty() && !line_mode {
5801 selection.goal = SelectionGoal::None;
5802 }
5803 let (cursor, goal) = movement::up_by_rows(
5804 map,
5805 selection.end,
5806 row_count,
5807 selection.goal,
5808 false,
5809 &text_layout_details,
5810 );
5811 selection.collapse_to(cursor, goal);
5812 });
5813 });
5814 }
5815
5816 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5817 let text_layout_details = &self.text_layout_details(cx);
5818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5819 s.move_heads_with(|map, head, goal| {
5820 movement::up(map, head, goal, false, &text_layout_details)
5821 })
5822 })
5823 }
5824
5825 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5826 self.take_rename(true, cx);
5827
5828 if self.mode == EditorMode::SingleLine {
5829 cx.propagate();
5830 return;
5831 }
5832
5833 let text_layout_details = &self.text_layout_details(cx);
5834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5835 let line_mode = s.line_mode;
5836 s.move_with(|map, selection| {
5837 if !selection.is_empty() && !line_mode {
5838 selection.goal = SelectionGoal::None;
5839 }
5840 let (cursor, goal) = movement::down(
5841 map,
5842 selection.end,
5843 selection.goal,
5844 false,
5845 &text_layout_details,
5846 );
5847 selection.collapse_to(cursor, goal);
5848 });
5849 });
5850 }
5851
5852 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5853 if self.take_rename(true, cx).is_some() {
5854 return;
5855 }
5856
5857 if self
5858 .context_menu
5859 .write()
5860 .as_mut()
5861 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5862 .unwrap_or(false)
5863 {
5864 return;
5865 }
5866
5867 if matches!(self.mode, EditorMode::SingleLine) {
5868 cx.propagate();
5869 return;
5870 }
5871
5872 let row_count = if let Some(row_count) = self.visible_line_count() {
5873 row_count as u32 - 1
5874 } else {
5875 return;
5876 };
5877
5878 let autoscroll = if action.center_cursor {
5879 Autoscroll::center()
5880 } else {
5881 Autoscroll::fit()
5882 };
5883
5884 let text_layout_details = &self.text_layout_details(cx);
5885 self.change_selections(Some(autoscroll), cx, |s| {
5886 let line_mode = s.line_mode;
5887 s.move_with(|map, selection| {
5888 if !selection.is_empty() && !line_mode {
5889 selection.goal = SelectionGoal::None;
5890 }
5891 let (cursor, goal) = movement::down_by_rows(
5892 map,
5893 selection.end,
5894 row_count,
5895 selection.goal,
5896 false,
5897 &text_layout_details,
5898 );
5899 selection.collapse_to(cursor, goal);
5900 });
5901 });
5902 }
5903
5904 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5905 let text_layout_details = &self.text_layout_details(cx);
5906 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5907 s.move_heads_with(|map, head, goal| {
5908 movement::down(map, head, goal, false, &text_layout_details)
5909 })
5910 });
5911 }
5912
5913 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5914 if let Some(context_menu) = self.context_menu.write().as_mut() {
5915 context_menu.select_first(self.project.as_ref(), cx);
5916 }
5917 }
5918
5919 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5920 if let Some(context_menu) = self.context_menu.write().as_mut() {
5921 context_menu.select_prev(self.project.as_ref(), cx);
5922 }
5923 }
5924
5925 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5926 if let Some(context_menu) = self.context_menu.write().as_mut() {
5927 context_menu.select_next(self.project.as_ref(), cx);
5928 }
5929 }
5930
5931 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5932 if let Some(context_menu) = self.context_menu.write().as_mut() {
5933 context_menu.select_last(self.project.as_ref(), cx);
5934 }
5935 }
5936
5937 pub fn move_to_previous_word_start(
5938 &mut self,
5939 _: &MoveToPreviousWordStart,
5940 cx: &mut ViewContext<Self>,
5941 ) {
5942 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5943 s.move_cursors_with(|map, head, _| {
5944 (
5945 movement::previous_word_start(map, head),
5946 SelectionGoal::None,
5947 )
5948 });
5949 })
5950 }
5951
5952 pub fn move_to_previous_subword_start(
5953 &mut self,
5954 _: &MoveToPreviousSubwordStart,
5955 cx: &mut ViewContext<Self>,
5956 ) {
5957 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5958 s.move_cursors_with(|map, head, _| {
5959 (
5960 movement::previous_subword_start(map, head),
5961 SelectionGoal::None,
5962 )
5963 });
5964 })
5965 }
5966
5967 pub fn select_to_previous_word_start(
5968 &mut self,
5969 _: &SelectToPreviousWordStart,
5970 cx: &mut ViewContext<Self>,
5971 ) {
5972 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5973 s.move_heads_with(|map, head, _| {
5974 (
5975 movement::previous_word_start(map, head),
5976 SelectionGoal::None,
5977 )
5978 });
5979 })
5980 }
5981
5982 pub fn select_to_previous_subword_start(
5983 &mut self,
5984 _: &SelectToPreviousSubwordStart,
5985 cx: &mut ViewContext<Self>,
5986 ) {
5987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5988 s.move_heads_with(|map, head, _| {
5989 (
5990 movement::previous_subword_start(map, head),
5991 SelectionGoal::None,
5992 )
5993 });
5994 })
5995 }
5996
5997 pub fn delete_to_previous_word_start(
5998 &mut self,
5999 _: &DeleteToPreviousWordStart,
6000 cx: &mut ViewContext<Self>,
6001 ) {
6002 self.transact(cx, |this, cx| {
6003 this.select_autoclose_pair(cx);
6004 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6005 let line_mode = s.line_mode;
6006 s.move_with(|map, selection| {
6007 if selection.is_empty() && !line_mode {
6008 let cursor = movement::previous_word_start(map, selection.head());
6009 selection.set_head(cursor, SelectionGoal::None);
6010 }
6011 });
6012 });
6013 this.insert("", cx);
6014 });
6015 }
6016
6017 pub fn delete_to_previous_subword_start(
6018 &mut self,
6019 _: &DeleteToPreviousSubwordStart,
6020 cx: &mut ViewContext<Self>,
6021 ) {
6022 self.transact(cx, |this, cx| {
6023 this.select_autoclose_pair(cx);
6024 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6025 let line_mode = s.line_mode;
6026 s.move_with(|map, selection| {
6027 if selection.is_empty() && !line_mode {
6028 let cursor = movement::previous_subword_start(map, selection.head());
6029 selection.set_head(cursor, SelectionGoal::None);
6030 }
6031 });
6032 });
6033 this.insert("", cx);
6034 });
6035 }
6036
6037 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6038 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6039 s.move_cursors_with(|map, head, _| {
6040 (movement::next_word_end(map, head), SelectionGoal::None)
6041 });
6042 })
6043 }
6044
6045 pub fn move_to_next_subword_end(
6046 &mut self,
6047 _: &MoveToNextSubwordEnd,
6048 cx: &mut ViewContext<Self>,
6049 ) {
6050 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6051 s.move_cursors_with(|map, head, _| {
6052 (movement::next_subword_end(map, head), SelectionGoal::None)
6053 });
6054 })
6055 }
6056
6057 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6059 s.move_heads_with(|map, head, _| {
6060 (movement::next_word_end(map, head), SelectionGoal::None)
6061 });
6062 })
6063 }
6064
6065 pub fn select_to_next_subword_end(
6066 &mut self,
6067 _: &SelectToNextSubwordEnd,
6068 cx: &mut ViewContext<Self>,
6069 ) {
6070 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6071 s.move_heads_with(|map, head, _| {
6072 (movement::next_subword_end(map, head), SelectionGoal::None)
6073 });
6074 })
6075 }
6076
6077 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6078 self.transact(cx, |this, cx| {
6079 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6080 let line_mode = s.line_mode;
6081 s.move_with(|map, selection| {
6082 if selection.is_empty() && !line_mode {
6083 let cursor = movement::next_word_end(map, selection.head());
6084 selection.set_head(cursor, SelectionGoal::None);
6085 }
6086 });
6087 });
6088 this.insert("", cx);
6089 });
6090 }
6091
6092 pub fn delete_to_next_subword_end(
6093 &mut self,
6094 _: &DeleteToNextSubwordEnd,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.transact(cx, |this, cx| {
6098 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6099 s.move_with(|map, selection| {
6100 if selection.is_empty() {
6101 let cursor = movement::next_subword_end(map, selection.head());
6102 selection.set_head(cursor, SelectionGoal::None);
6103 }
6104 });
6105 });
6106 this.insert("", cx);
6107 });
6108 }
6109
6110 pub fn move_to_beginning_of_line(
6111 &mut self,
6112 _: &MoveToBeginningOfLine,
6113 cx: &mut ViewContext<Self>,
6114 ) {
6115 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6116 s.move_cursors_with(|map, head, _| {
6117 (
6118 movement::indented_line_beginning(map, head, true),
6119 SelectionGoal::None,
6120 )
6121 });
6122 })
6123 }
6124
6125 pub fn select_to_beginning_of_line(
6126 &mut self,
6127 action: &SelectToBeginningOfLine,
6128 cx: &mut ViewContext<Self>,
6129 ) {
6130 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6131 s.move_heads_with(|map, head, _| {
6132 (
6133 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6134 SelectionGoal::None,
6135 )
6136 });
6137 });
6138 }
6139
6140 pub fn delete_to_beginning_of_line(
6141 &mut self,
6142 _: &DeleteToBeginningOfLine,
6143 cx: &mut ViewContext<Self>,
6144 ) {
6145 self.transact(cx, |this, cx| {
6146 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6147 s.move_with(|_, selection| {
6148 selection.reversed = true;
6149 });
6150 });
6151
6152 this.select_to_beginning_of_line(
6153 &SelectToBeginningOfLine {
6154 stop_at_soft_wraps: false,
6155 },
6156 cx,
6157 );
6158 this.backspace(&Backspace, cx);
6159 });
6160 }
6161
6162 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6164 s.move_cursors_with(|map, head, _| {
6165 (movement::line_end(map, head, true), SelectionGoal::None)
6166 });
6167 })
6168 }
6169
6170 pub fn select_to_end_of_line(
6171 &mut self,
6172 action: &SelectToEndOfLine,
6173 cx: &mut ViewContext<Self>,
6174 ) {
6175 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6176 s.move_heads_with(|map, head, _| {
6177 (
6178 movement::line_end(map, head, action.stop_at_soft_wraps),
6179 SelectionGoal::None,
6180 )
6181 });
6182 })
6183 }
6184
6185 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6186 self.transact(cx, |this, cx| {
6187 this.select_to_end_of_line(
6188 &SelectToEndOfLine {
6189 stop_at_soft_wraps: false,
6190 },
6191 cx,
6192 );
6193 this.delete(&Delete, cx);
6194 });
6195 }
6196
6197 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6198 self.transact(cx, |this, cx| {
6199 this.select_to_end_of_line(
6200 &SelectToEndOfLine {
6201 stop_at_soft_wraps: false,
6202 },
6203 cx,
6204 );
6205 this.cut(&Cut, cx);
6206 });
6207 }
6208
6209 pub fn move_to_start_of_paragraph(
6210 &mut self,
6211 _: &MoveToStartOfParagraph,
6212 cx: &mut ViewContext<Self>,
6213 ) {
6214 if matches!(self.mode, EditorMode::SingleLine) {
6215 cx.propagate();
6216 return;
6217 }
6218
6219 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6220 s.move_with(|map, selection| {
6221 selection.collapse_to(
6222 movement::start_of_paragraph(map, selection.head(), 1),
6223 SelectionGoal::None,
6224 )
6225 });
6226 })
6227 }
6228
6229 pub fn move_to_end_of_paragraph(
6230 &mut self,
6231 _: &MoveToEndOfParagraph,
6232 cx: &mut ViewContext<Self>,
6233 ) {
6234 if matches!(self.mode, EditorMode::SingleLine) {
6235 cx.propagate();
6236 return;
6237 }
6238
6239 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6240 s.move_with(|map, selection| {
6241 selection.collapse_to(
6242 movement::end_of_paragraph(map, selection.head(), 1),
6243 SelectionGoal::None,
6244 )
6245 });
6246 })
6247 }
6248
6249 pub fn select_to_start_of_paragraph(
6250 &mut self,
6251 _: &SelectToStartOfParagraph,
6252 cx: &mut ViewContext<Self>,
6253 ) {
6254 if matches!(self.mode, EditorMode::SingleLine) {
6255 cx.propagate();
6256 return;
6257 }
6258
6259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6260 s.move_heads_with(|map, head, _| {
6261 (
6262 movement::start_of_paragraph(map, head, 1),
6263 SelectionGoal::None,
6264 )
6265 });
6266 })
6267 }
6268
6269 pub fn select_to_end_of_paragraph(
6270 &mut self,
6271 _: &SelectToEndOfParagraph,
6272 cx: &mut ViewContext<Self>,
6273 ) {
6274 if matches!(self.mode, EditorMode::SingleLine) {
6275 cx.propagate();
6276 return;
6277 }
6278
6279 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6280 s.move_heads_with(|map, head, _| {
6281 (
6282 movement::end_of_paragraph(map, head, 1),
6283 SelectionGoal::None,
6284 )
6285 });
6286 })
6287 }
6288
6289 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6290 if matches!(self.mode, EditorMode::SingleLine) {
6291 cx.propagate();
6292 return;
6293 }
6294
6295 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6296 s.select_ranges(vec![0..0]);
6297 });
6298 }
6299
6300 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6301 let mut selection = self.selections.last::<Point>(cx);
6302 selection.set_head(Point::zero(), SelectionGoal::None);
6303
6304 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6305 s.select(vec![selection]);
6306 });
6307 }
6308
6309 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6310 if matches!(self.mode, EditorMode::SingleLine) {
6311 cx.propagate();
6312 return;
6313 }
6314
6315 let cursor = self.buffer.read(cx).read(cx).len();
6316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6317 s.select_ranges(vec![cursor..cursor])
6318 });
6319 }
6320
6321 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6322 self.nav_history = nav_history;
6323 }
6324
6325 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6326 self.nav_history.as_ref()
6327 }
6328
6329 fn push_to_nav_history(
6330 &mut self,
6331 cursor_anchor: Anchor,
6332 new_position: Option<Point>,
6333 cx: &mut ViewContext<Self>,
6334 ) {
6335 if let Some(nav_history) = self.nav_history.as_mut() {
6336 let buffer = self.buffer.read(cx).read(cx);
6337 let cursor_position = cursor_anchor.to_point(&buffer);
6338 let scroll_state = self.scroll_manager.anchor();
6339 let scroll_top_row = scroll_state.top_row(&buffer);
6340 drop(buffer);
6341
6342 if let Some(new_position) = new_position {
6343 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6344 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6345 return;
6346 }
6347 }
6348
6349 nav_history.push(
6350 Some(NavigationData {
6351 cursor_anchor,
6352 cursor_position,
6353 scroll_anchor: scroll_state,
6354 scroll_top_row,
6355 }),
6356 cx,
6357 );
6358 }
6359 }
6360
6361 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6362 let buffer = self.buffer.read(cx).snapshot(cx);
6363 let mut selection = self.selections.first::<usize>(cx);
6364 selection.set_head(buffer.len(), SelectionGoal::None);
6365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6366 s.select(vec![selection]);
6367 });
6368 }
6369
6370 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6371 let end = self.buffer.read(cx).read(cx).len();
6372 self.change_selections(None, cx, |s| {
6373 s.select_ranges(vec![0..end]);
6374 });
6375 }
6376
6377 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6378 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6379 let mut selections = self.selections.all::<Point>(cx);
6380 let max_point = display_map.buffer_snapshot.max_point();
6381 for selection in &mut selections {
6382 let rows = selection.spanned_rows(true, &display_map);
6383 selection.start = Point::new(rows.start, 0);
6384 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6385 selection.reversed = false;
6386 }
6387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6388 s.select(selections);
6389 });
6390 }
6391
6392 pub fn split_selection_into_lines(
6393 &mut self,
6394 _: &SplitSelectionIntoLines,
6395 cx: &mut ViewContext<Self>,
6396 ) {
6397 let mut to_unfold = Vec::new();
6398 let mut new_selection_ranges = Vec::new();
6399 {
6400 let selections = self.selections.all::<Point>(cx);
6401 let buffer = self.buffer.read(cx).read(cx);
6402 for selection in selections {
6403 for row in selection.start.row..selection.end.row {
6404 let cursor = Point::new(row, buffer.line_len(row));
6405 new_selection_ranges.push(cursor..cursor);
6406 }
6407 new_selection_ranges.push(selection.end..selection.end);
6408 to_unfold.push(selection.start..selection.end);
6409 }
6410 }
6411 self.unfold_ranges(to_unfold, true, true, cx);
6412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6413 s.select_ranges(new_selection_ranges);
6414 });
6415 }
6416
6417 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6418 self.add_selection(true, cx);
6419 }
6420
6421 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6422 self.add_selection(false, cx);
6423 }
6424
6425 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6427 let mut selections = self.selections.all::<Point>(cx);
6428 let text_layout_details = self.text_layout_details(cx);
6429 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6430 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6431 let range = oldest_selection.display_range(&display_map).sorted();
6432
6433 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6434 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6435 let positions = start_x.min(end_x)..start_x.max(end_x);
6436
6437 selections.clear();
6438 let mut stack = Vec::new();
6439 for row in range.start.row()..=range.end.row() {
6440 if let Some(selection) = self.selections.build_columnar_selection(
6441 &display_map,
6442 row,
6443 &positions,
6444 oldest_selection.reversed,
6445 &text_layout_details,
6446 ) {
6447 stack.push(selection.id);
6448 selections.push(selection);
6449 }
6450 }
6451
6452 if above {
6453 stack.reverse();
6454 }
6455
6456 AddSelectionsState { above, stack }
6457 });
6458
6459 let last_added_selection = *state.stack.last().unwrap();
6460 let mut new_selections = Vec::new();
6461 if above == state.above {
6462 let end_row = if above {
6463 0
6464 } else {
6465 display_map.max_point().row()
6466 };
6467
6468 'outer: for selection in selections {
6469 if selection.id == last_added_selection {
6470 let range = selection.display_range(&display_map).sorted();
6471 debug_assert_eq!(range.start.row(), range.end.row());
6472 let mut row = range.start.row();
6473 let positions =
6474 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6475 px(start)..px(end)
6476 } else {
6477 let start_x =
6478 display_map.x_for_display_point(range.start, &text_layout_details);
6479 let end_x =
6480 display_map.x_for_display_point(range.end, &text_layout_details);
6481 start_x.min(end_x)..start_x.max(end_x)
6482 };
6483
6484 while row != end_row {
6485 if above {
6486 row -= 1;
6487 } else {
6488 row += 1;
6489 }
6490
6491 if let Some(new_selection) = self.selections.build_columnar_selection(
6492 &display_map,
6493 row,
6494 &positions,
6495 selection.reversed,
6496 &text_layout_details,
6497 ) {
6498 state.stack.push(new_selection.id);
6499 if above {
6500 new_selections.push(new_selection);
6501 new_selections.push(selection);
6502 } else {
6503 new_selections.push(selection);
6504 new_selections.push(new_selection);
6505 }
6506
6507 continue 'outer;
6508 }
6509 }
6510 }
6511
6512 new_selections.push(selection);
6513 }
6514 } else {
6515 new_selections = selections;
6516 new_selections.retain(|s| s.id != last_added_selection);
6517 state.stack.pop();
6518 }
6519
6520 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6521 s.select(new_selections);
6522 });
6523 if state.stack.len() > 1 {
6524 self.add_selections_state = Some(state);
6525 }
6526 }
6527
6528 pub fn select_next_match_internal(
6529 &mut self,
6530 display_map: &DisplaySnapshot,
6531 replace_newest: bool,
6532 autoscroll: Option<Autoscroll>,
6533 cx: &mut ViewContext<Self>,
6534 ) -> Result<()> {
6535 fn select_next_match_ranges(
6536 this: &mut Editor,
6537 range: Range<usize>,
6538 replace_newest: bool,
6539 auto_scroll: Option<Autoscroll>,
6540 cx: &mut ViewContext<Editor>,
6541 ) {
6542 this.unfold_ranges([range.clone()], false, true, cx);
6543 this.change_selections(auto_scroll, cx, |s| {
6544 if replace_newest {
6545 s.delete(s.newest_anchor().id);
6546 }
6547 s.insert_range(range.clone());
6548 });
6549 }
6550
6551 let buffer = &display_map.buffer_snapshot;
6552 let mut selections = self.selections.all::<usize>(cx);
6553 if let Some(mut select_next_state) = self.select_next_state.take() {
6554 let query = &select_next_state.query;
6555 if !select_next_state.done {
6556 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6557 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6558 let mut next_selected_range = None;
6559
6560 let bytes_after_last_selection =
6561 buffer.bytes_in_range(last_selection.end..buffer.len());
6562 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6563 let query_matches = query
6564 .stream_find_iter(bytes_after_last_selection)
6565 .map(|result| (last_selection.end, result))
6566 .chain(
6567 query
6568 .stream_find_iter(bytes_before_first_selection)
6569 .map(|result| (0, result)),
6570 );
6571
6572 for (start_offset, query_match) in query_matches {
6573 let query_match = query_match.unwrap(); // can only fail due to I/O
6574 let offset_range =
6575 start_offset + query_match.start()..start_offset + query_match.end();
6576 let display_range = offset_range.start.to_display_point(&display_map)
6577 ..offset_range.end.to_display_point(&display_map);
6578
6579 if !select_next_state.wordwise
6580 || (!movement::is_inside_word(&display_map, display_range.start)
6581 && !movement::is_inside_word(&display_map, display_range.end))
6582 {
6583 // TODO: This is n^2, because we might check all the selections
6584 if !selections
6585 .iter()
6586 .any(|selection| selection.range().overlaps(&offset_range))
6587 {
6588 next_selected_range = Some(offset_range);
6589 break;
6590 }
6591 }
6592 }
6593
6594 if let Some(next_selected_range) = next_selected_range {
6595 select_next_match_ranges(
6596 self,
6597 next_selected_range,
6598 replace_newest,
6599 autoscroll,
6600 cx,
6601 );
6602 } else {
6603 select_next_state.done = true;
6604 }
6605 }
6606
6607 self.select_next_state = Some(select_next_state);
6608 } else {
6609 let mut only_carets = true;
6610 let mut same_text_selected = true;
6611 let mut selected_text = None;
6612
6613 let mut selections_iter = selections.iter().peekable();
6614 while let Some(selection) = selections_iter.next() {
6615 if selection.start != selection.end {
6616 only_carets = false;
6617 }
6618
6619 if same_text_selected {
6620 if selected_text.is_none() {
6621 selected_text =
6622 Some(buffer.text_for_range(selection.range()).collect::<String>());
6623 }
6624
6625 if let Some(next_selection) = selections_iter.peek() {
6626 if next_selection.range().len() == selection.range().len() {
6627 let next_selected_text = buffer
6628 .text_for_range(next_selection.range())
6629 .collect::<String>();
6630 if Some(next_selected_text) != selected_text {
6631 same_text_selected = false;
6632 selected_text = None;
6633 }
6634 } else {
6635 same_text_selected = false;
6636 selected_text = None;
6637 }
6638 }
6639 }
6640 }
6641
6642 if only_carets {
6643 for selection in &mut selections {
6644 let word_range = movement::surrounding_word(
6645 &display_map,
6646 selection.start.to_display_point(&display_map),
6647 );
6648 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6649 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6650 selection.goal = SelectionGoal::None;
6651 selection.reversed = false;
6652 select_next_match_ranges(
6653 self,
6654 selection.start..selection.end,
6655 replace_newest,
6656 autoscroll,
6657 cx,
6658 );
6659 }
6660
6661 if selections.len() == 1 {
6662 let selection = selections
6663 .last()
6664 .expect("ensured that there's only one selection");
6665 let query = buffer
6666 .text_for_range(selection.start..selection.end)
6667 .collect::<String>();
6668 let is_empty = query.is_empty();
6669 let select_state = SelectNextState {
6670 query: AhoCorasick::new(&[query])?,
6671 wordwise: true,
6672 done: is_empty,
6673 };
6674 self.select_next_state = Some(select_state);
6675 } else {
6676 self.select_next_state = None;
6677 }
6678 } else if let Some(selected_text) = selected_text {
6679 self.select_next_state = Some(SelectNextState {
6680 query: AhoCorasick::new(&[selected_text])?,
6681 wordwise: false,
6682 done: false,
6683 });
6684 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6685 }
6686 }
6687 Ok(())
6688 }
6689
6690 pub fn select_all_matches(
6691 &mut self,
6692 _action: &SelectAllMatches,
6693 cx: &mut ViewContext<Self>,
6694 ) -> Result<()> {
6695 self.push_to_selection_history();
6696 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6697
6698 self.select_next_match_internal(&display_map, false, None, cx)?;
6699 let Some(select_next_state) = self.select_next_state.as_mut() else {
6700 return Ok(());
6701 };
6702 if select_next_state.done {
6703 return Ok(());
6704 }
6705
6706 let mut new_selections = self.selections.all::<usize>(cx);
6707
6708 let buffer = &display_map.buffer_snapshot;
6709 let query_matches = select_next_state
6710 .query
6711 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6712
6713 for query_match in query_matches {
6714 let query_match = query_match.unwrap(); // can only fail due to I/O
6715 let offset_range = query_match.start()..query_match.end();
6716 let display_range = offset_range.start.to_display_point(&display_map)
6717 ..offset_range.end.to_display_point(&display_map);
6718
6719 if !select_next_state.wordwise
6720 || (!movement::is_inside_word(&display_map, display_range.start)
6721 && !movement::is_inside_word(&display_map, display_range.end))
6722 {
6723 self.selections.change_with(cx, |selections| {
6724 new_selections.push(Selection {
6725 id: selections.new_selection_id(),
6726 start: offset_range.start,
6727 end: offset_range.end,
6728 reversed: false,
6729 goal: SelectionGoal::None,
6730 });
6731 });
6732 }
6733 }
6734
6735 new_selections.sort_by_key(|selection| selection.start);
6736 let mut ix = 0;
6737 while ix + 1 < new_selections.len() {
6738 let current_selection = &new_selections[ix];
6739 let next_selection = &new_selections[ix + 1];
6740 if current_selection.range().overlaps(&next_selection.range()) {
6741 if current_selection.id < next_selection.id {
6742 new_selections.remove(ix + 1);
6743 } else {
6744 new_selections.remove(ix);
6745 }
6746 } else {
6747 ix += 1;
6748 }
6749 }
6750
6751 select_next_state.done = true;
6752 self.unfold_ranges(
6753 new_selections.iter().map(|selection| selection.range()),
6754 false,
6755 false,
6756 cx,
6757 );
6758 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6759 selections.select(new_selections)
6760 });
6761
6762 Ok(())
6763 }
6764
6765 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6766 self.push_to_selection_history();
6767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6768 self.select_next_match_internal(
6769 &display_map,
6770 action.replace_newest,
6771 Some(Autoscroll::newest()),
6772 cx,
6773 )?;
6774 Ok(())
6775 }
6776
6777 pub fn select_previous(
6778 &mut self,
6779 action: &SelectPrevious,
6780 cx: &mut ViewContext<Self>,
6781 ) -> Result<()> {
6782 self.push_to_selection_history();
6783 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6784 let buffer = &display_map.buffer_snapshot;
6785 let mut selections = self.selections.all::<usize>(cx);
6786 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6787 let query = &select_prev_state.query;
6788 if !select_prev_state.done {
6789 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6790 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6791 let mut next_selected_range = None;
6792 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6793 let bytes_before_last_selection =
6794 buffer.reversed_bytes_in_range(0..last_selection.start);
6795 let bytes_after_first_selection =
6796 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6797 let query_matches = query
6798 .stream_find_iter(bytes_before_last_selection)
6799 .map(|result| (last_selection.start, result))
6800 .chain(
6801 query
6802 .stream_find_iter(bytes_after_first_selection)
6803 .map(|result| (buffer.len(), result)),
6804 );
6805 for (end_offset, query_match) in query_matches {
6806 let query_match = query_match.unwrap(); // can only fail due to I/O
6807 let offset_range =
6808 end_offset - query_match.end()..end_offset - query_match.start();
6809 let display_range = offset_range.start.to_display_point(&display_map)
6810 ..offset_range.end.to_display_point(&display_map);
6811
6812 if !select_prev_state.wordwise
6813 || (!movement::is_inside_word(&display_map, display_range.start)
6814 && !movement::is_inside_word(&display_map, display_range.end))
6815 {
6816 next_selected_range = Some(offset_range);
6817 break;
6818 }
6819 }
6820
6821 if let Some(next_selected_range) = next_selected_range {
6822 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6823 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6824 if action.replace_newest {
6825 s.delete(s.newest_anchor().id);
6826 }
6827 s.insert_range(next_selected_range);
6828 });
6829 } else {
6830 select_prev_state.done = true;
6831 }
6832 }
6833
6834 self.select_prev_state = Some(select_prev_state);
6835 } else {
6836 let mut only_carets = true;
6837 let mut same_text_selected = true;
6838 let mut selected_text = None;
6839
6840 let mut selections_iter = selections.iter().peekable();
6841 while let Some(selection) = selections_iter.next() {
6842 if selection.start != selection.end {
6843 only_carets = false;
6844 }
6845
6846 if same_text_selected {
6847 if selected_text.is_none() {
6848 selected_text =
6849 Some(buffer.text_for_range(selection.range()).collect::<String>());
6850 }
6851
6852 if let Some(next_selection) = selections_iter.peek() {
6853 if next_selection.range().len() == selection.range().len() {
6854 let next_selected_text = buffer
6855 .text_for_range(next_selection.range())
6856 .collect::<String>();
6857 if Some(next_selected_text) != selected_text {
6858 same_text_selected = false;
6859 selected_text = None;
6860 }
6861 } else {
6862 same_text_selected = false;
6863 selected_text = None;
6864 }
6865 }
6866 }
6867 }
6868
6869 if only_carets {
6870 for selection in &mut selections {
6871 let word_range = movement::surrounding_word(
6872 &display_map,
6873 selection.start.to_display_point(&display_map),
6874 );
6875 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6876 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6877 selection.goal = SelectionGoal::None;
6878 selection.reversed = false;
6879 }
6880 if selections.len() == 1 {
6881 let selection = selections
6882 .last()
6883 .expect("ensured that there's only one selection");
6884 let query = buffer
6885 .text_for_range(selection.start..selection.end)
6886 .collect::<String>();
6887 let is_empty = query.is_empty();
6888 let select_state = SelectNextState {
6889 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6890 wordwise: true,
6891 done: is_empty,
6892 };
6893 self.select_prev_state = Some(select_state);
6894 } else {
6895 self.select_prev_state = None;
6896 }
6897
6898 self.unfold_ranges(
6899 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6900 false,
6901 true,
6902 cx,
6903 );
6904 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6905 s.select(selections);
6906 });
6907 } else if let Some(selected_text) = selected_text {
6908 self.select_prev_state = Some(SelectNextState {
6909 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6910 wordwise: false,
6911 done: false,
6912 });
6913 self.select_previous(action, cx)?;
6914 }
6915 }
6916 Ok(())
6917 }
6918
6919 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6920 let text_layout_details = &self.text_layout_details(cx);
6921 self.transact(cx, |this, cx| {
6922 let mut selections = this.selections.all::<Point>(cx);
6923 let mut edits = Vec::new();
6924 let mut selection_edit_ranges = Vec::new();
6925 let mut last_toggled_row = None;
6926 let snapshot = this.buffer.read(cx).read(cx);
6927 let empty_str: Arc<str> = "".into();
6928 let mut suffixes_inserted = Vec::new();
6929
6930 fn comment_prefix_range(
6931 snapshot: &MultiBufferSnapshot,
6932 row: u32,
6933 comment_prefix: &str,
6934 comment_prefix_whitespace: &str,
6935 ) -> Range<Point> {
6936 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6937
6938 let mut line_bytes = snapshot
6939 .bytes_in_range(start..snapshot.max_point())
6940 .flatten()
6941 .copied();
6942
6943 // If this line currently begins with the line comment prefix, then record
6944 // the range containing the prefix.
6945 if line_bytes
6946 .by_ref()
6947 .take(comment_prefix.len())
6948 .eq(comment_prefix.bytes())
6949 {
6950 // Include any whitespace that matches the comment prefix.
6951 let matching_whitespace_len = line_bytes
6952 .zip(comment_prefix_whitespace.bytes())
6953 .take_while(|(a, b)| a == b)
6954 .count() as u32;
6955 let end = Point::new(
6956 start.row,
6957 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6958 );
6959 start..end
6960 } else {
6961 start..start
6962 }
6963 }
6964
6965 fn comment_suffix_range(
6966 snapshot: &MultiBufferSnapshot,
6967 row: u32,
6968 comment_suffix: &str,
6969 comment_suffix_has_leading_space: bool,
6970 ) -> Range<Point> {
6971 let end = Point::new(row, snapshot.line_len(row));
6972 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6973
6974 let mut line_end_bytes = snapshot
6975 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6976 .flatten()
6977 .copied();
6978
6979 let leading_space_len = if suffix_start_column > 0
6980 && line_end_bytes.next() == Some(b' ')
6981 && comment_suffix_has_leading_space
6982 {
6983 1
6984 } else {
6985 0
6986 };
6987
6988 // If this line currently begins with the line comment prefix, then record
6989 // the range containing the prefix.
6990 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6991 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6992 start..end
6993 } else {
6994 end..end
6995 }
6996 }
6997
6998 // TODO: Handle selections that cross excerpts
6999 for selection in &mut selections {
7000 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7001 let language = if let Some(language) =
7002 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7003 {
7004 language
7005 } else {
7006 continue;
7007 };
7008
7009 selection_edit_ranges.clear();
7010
7011 // If multiple selections contain a given row, avoid processing that
7012 // row more than once.
7013 let mut start_row = selection.start.row;
7014 if last_toggled_row == Some(start_row) {
7015 start_row += 1;
7016 }
7017 let end_row =
7018 if selection.end.row > selection.start.row && selection.end.column == 0 {
7019 selection.end.row - 1
7020 } else {
7021 selection.end.row
7022 };
7023 last_toggled_row = Some(end_row);
7024
7025 if start_row > end_row {
7026 continue;
7027 }
7028
7029 // If the language has line comments, toggle those.
7030 if let Some(full_comment_prefix) = language
7031 .line_comment_prefixes()
7032 .and_then(|prefixes| prefixes.first())
7033 {
7034 // Split the comment prefix's trailing whitespace into a separate string,
7035 // as that portion won't be used for detecting if a line is a comment.
7036 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7037 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7038 let mut all_selection_lines_are_comments = true;
7039
7040 for row in start_row..=end_row {
7041 if start_row < end_row && snapshot.is_line_blank(row) {
7042 continue;
7043 }
7044
7045 let prefix_range = comment_prefix_range(
7046 snapshot.deref(),
7047 row,
7048 comment_prefix,
7049 comment_prefix_whitespace,
7050 );
7051 if prefix_range.is_empty() {
7052 all_selection_lines_are_comments = false;
7053 }
7054 selection_edit_ranges.push(prefix_range);
7055 }
7056
7057 if all_selection_lines_are_comments {
7058 edits.extend(
7059 selection_edit_ranges
7060 .iter()
7061 .cloned()
7062 .map(|range| (range, empty_str.clone())),
7063 );
7064 } else {
7065 let min_column = selection_edit_ranges
7066 .iter()
7067 .map(|r| r.start.column)
7068 .min()
7069 .unwrap_or(0);
7070 edits.extend(selection_edit_ranges.iter().map(|range| {
7071 let position = Point::new(range.start.row, min_column);
7072 (position..position, full_comment_prefix.clone())
7073 }));
7074 }
7075 } else if let Some((full_comment_prefix, comment_suffix)) =
7076 language.block_comment_delimiters()
7077 {
7078 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7079 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7080 let prefix_range = comment_prefix_range(
7081 snapshot.deref(),
7082 start_row,
7083 comment_prefix,
7084 comment_prefix_whitespace,
7085 );
7086 let suffix_range = comment_suffix_range(
7087 snapshot.deref(),
7088 end_row,
7089 comment_suffix.trim_start_matches(' '),
7090 comment_suffix.starts_with(' '),
7091 );
7092
7093 if prefix_range.is_empty() || suffix_range.is_empty() {
7094 edits.push((
7095 prefix_range.start..prefix_range.start,
7096 full_comment_prefix.clone(),
7097 ));
7098 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7099 suffixes_inserted.push((end_row, comment_suffix.len()));
7100 } else {
7101 edits.push((prefix_range, empty_str.clone()));
7102 edits.push((suffix_range, empty_str.clone()));
7103 }
7104 } else {
7105 continue;
7106 }
7107 }
7108
7109 drop(snapshot);
7110 this.buffer.update(cx, |buffer, cx| {
7111 buffer.edit(edits, None, cx);
7112 });
7113
7114 // Adjust selections so that they end before any comment suffixes that
7115 // were inserted.
7116 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7117 let mut selections = this.selections.all::<Point>(cx);
7118 let snapshot = this.buffer.read(cx).read(cx);
7119 for selection in &mut selections {
7120 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7121 match row.cmp(&selection.end.row) {
7122 Ordering::Less => {
7123 suffixes_inserted.next();
7124 continue;
7125 }
7126 Ordering::Greater => break,
7127 Ordering::Equal => {
7128 if selection.end.column == snapshot.line_len(row) {
7129 if selection.is_empty() {
7130 selection.start.column -= suffix_len as u32;
7131 }
7132 selection.end.column -= suffix_len as u32;
7133 }
7134 break;
7135 }
7136 }
7137 }
7138 }
7139
7140 drop(snapshot);
7141 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7142
7143 let selections = this.selections.all::<Point>(cx);
7144 let selections_on_single_row = selections.windows(2).all(|selections| {
7145 selections[0].start.row == selections[1].start.row
7146 && selections[0].end.row == selections[1].end.row
7147 && selections[0].start.row == selections[0].end.row
7148 });
7149 let selections_selecting = selections
7150 .iter()
7151 .any(|selection| selection.start != selection.end);
7152 let advance_downwards = action.advance_downwards
7153 && selections_on_single_row
7154 && !selections_selecting
7155 && this.mode != EditorMode::SingleLine;
7156
7157 if advance_downwards {
7158 let snapshot = this.buffer.read(cx).snapshot(cx);
7159
7160 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7161 s.move_cursors_with(|display_snapshot, display_point, _| {
7162 let mut point = display_point.to_point(display_snapshot);
7163 point.row += 1;
7164 point = snapshot.clip_point(point, Bias::Left);
7165 let display_point = point.to_display_point(display_snapshot);
7166 let goal = SelectionGoal::HorizontalPosition(
7167 display_snapshot
7168 .x_for_display_point(display_point, &text_layout_details)
7169 .into(),
7170 );
7171 (display_point, goal)
7172 })
7173 });
7174 }
7175 });
7176 }
7177
7178 pub fn select_larger_syntax_node(
7179 &mut self,
7180 _: &SelectLargerSyntaxNode,
7181 cx: &mut ViewContext<Self>,
7182 ) {
7183 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7184 let buffer = self.buffer.read(cx).snapshot(cx);
7185 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7186
7187 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7188 let mut selected_larger_node = false;
7189 let new_selections = old_selections
7190 .iter()
7191 .map(|selection| {
7192 let old_range = selection.start..selection.end;
7193 let mut new_range = old_range.clone();
7194 while let Some(containing_range) =
7195 buffer.range_for_syntax_ancestor(new_range.clone())
7196 {
7197 new_range = containing_range;
7198 if !display_map.intersects_fold(new_range.start)
7199 && !display_map.intersects_fold(new_range.end)
7200 {
7201 break;
7202 }
7203 }
7204
7205 selected_larger_node |= new_range != old_range;
7206 Selection {
7207 id: selection.id,
7208 start: new_range.start,
7209 end: new_range.end,
7210 goal: SelectionGoal::None,
7211 reversed: selection.reversed,
7212 }
7213 })
7214 .collect::<Vec<_>>();
7215
7216 if selected_larger_node {
7217 stack.push(old_selections);
7218 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7219 s.select(new_selections);
7220 });
7221 }
7222 self.select_larger_syntax_node_stack = stack;
7223 }
7224
7225 pub fn select_smaller_syntax_node(
7226 &mut self,
7227 _: &SelectSmallerSyntaxNode,
7228 cx: &mut ViewContext<Self>,
7229 ) {
7230 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7231 if let Some(selections) = stack.pop() {
7232 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7233 s.select(selections.to_vec());
7234 });
7235 }
7236 self.select_larger_syntax_node_stack = stack;
7237 }
7238
7239 pub fn move_to_enclosing_bracket(
7240 &mut self,
7241 _: &MoveToEnclosingBracket,
7242 cx: &mut ViewContext<Self>,
7243 ) {
7244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7245 s.move_offsets_with(|snapshot, selection| {
7246 let Some(enclosing_bracket_ranges) =
7247 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7248 else {
7249 return;
7250 };
7251
7252 let mut best_length = usize::MAX;
7253 let mut best_inside = false;
7254 let mut best_in_bracket_range = false;
7255 let mut best_destination = None;
7256 for (open, close) in enclosing_bracket_ranges {
7257 let close = close.to_inclusive();
7258 let length = close.end() - open.start;
7259 let inside = selection.start >= open.end && selection.end <= *close.start();
7260 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7261 || close.contains(&selection.head());
7262
7263 // If best is next to a bracket and current isn't, skip
7264 if !in_bracket_range && best_in_bracket_range {
7265 continue;
7266 }
7267
7268 // Prefer smaller lengths unless best is inside and current isn't
7269 if length > best_length && (best_inside || !inside) {
7270 continue;
7271 }
7272
7273 best_length = length;
7274 best_inside = inside;
7275 best_in_bracket_range = in_bracket_range;
7276 best_destination = Some(
7277 if close.contains(&selection.start) && close.contains(&selection.end) {
7278 if inside {
7279 open.end
7280 } else {
7281 open.start
7282 }
7283 } else {
7284 if inside {
7285 *close.start()
7286 } else {
7287 *close.end()
7288 }
7289 },
7290 );
7291 }
7292
7293 if let Some(destination) = best_destination {
7294 selection.collapse_to(destination, SelectionGoal::None);
7295 }
7296 })
7297 });
7298 }
7299
7300 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7301 self.end_selection(cx);
7302 self.selection_history.mode = SelectionHistoryMode::Undoing;
7303 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7304 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7305 self.select_next_state = entry.select_next_state;
7306 self.select_prev_state = entry.select_prev_state;
7307 self.add_selections_state = entry.add_selections_state;
7308 self.request_autoscroll(Autoscroll::newest(), cx);
7309 }
7310 self.selection_history.mode = SelectionHistoryMode::Normal;
7311 }
7312
7313 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7314 self.end_selection(cx);
7315 self.selection_history.mode = SelectionHistoryMode::Redoing;
7316 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7317 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7318 self.select_next_state = entry.select_next_state;
7319 self.select_prev_state = entry.select_prev_state;
7320 self.add_selections_state = entry.add_selections_state;
7321 self.request_autoscroll(Autoscroll::newest(), cx);
7322 }
7323 self.selection_history.mode = SelectionHistoryMode::Normal;
7324 }
7325
7326 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7327 self.go_to_diagnostic_impl(Direction::Next, cx)
7328 }
7329
7330 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7331 self.go_to_diagnostic_impl(Direction::Prev, cx)
7332 }
7333
7334 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7335 let buffer = self.buffer.read(cx).snapshot(cx);
7336 let selection = self.selections.newest::<usize>(cx);
7337
7338 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7339 if direction == Direction::Next {
7340 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7341 let (group_id, jump_to) = popover.activation_info();
7342 if self.activate_diagnostics(group_id, cx) {
7343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7344 let mut new_selection = s.newest_anchor().clone();
7345 new_selection.collapse_to(jump_to, SelectionGoal::None);
7346 s.select_anchors(vec![new_selection.clone()]);
7347 });
7348 }
7349 return;
7350 }
7351 }
7352
7353 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7354 active_diagnostics
7355 .primary_range
7356 .to_offset(&buffer)
7357 .to_inclusive()
7358 });
7359 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7360 if active_primary_range.contains(&selection.head()) {
7361 *active_primary_range.end()
7362 } else {
7363 selection.head()
7364 }
7365 } else {
7366 selection.head()
7367 };
7368
7369 loop {
7370 let mut diagnostics = if direction == Direction::Prev {
7371 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7372 } else {
7373 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7374 };
7375 let group = diagnostics.find_map(|entry| {
7376 if entry.diagnostic.is_primary
7377 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7378 && !entry.range.is_empty()
7379 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7380 && !entry.range.contains(&search_start)
7381 {
7382 Some((entry.range, entry.diagnostic.group_id))
7383 } else {
7384 None
7385 }
7386 });
7387
7388 if let Some((primary_range, group_id)) = group {
7389 if self.activate_diagnostics(group_id, cx) {
7390 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7391 s.select(vec![Selection {
7392 id: selection.id,
7393 start: primary_range.start,
7394 end: primary_range.start,
7395 reversed: false,
7396 goal: SelectionGoal::None,
7397 }]);
7398 });
7399 }
7400 break;
7401 } else {
7402 // Cycle around to the start of the buffer, potentially moving back to the start of
7403 // the currently active diagnostic.
7404 active_primary_range.take();
7405 if direction == Direction::Prev {
7406 if search_start == buffer.len() {
7407 break;
7408 } else {
7409 search_start = buffer.len();
7410 }
7411 } else if search_start == 0 {
7412 break;
7413 } else {
7414 search_start = 0;
7415 }
7416 }
7417 }
7418 }
7419
7420 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7421 let snapshot = self
7422 .display_map
7423 .update(cx, |display_map, cx| display_map.snapshot(cx));
7424 let selection = self.selections.newest::<Point>(cx);
7425
7426 if !self.seek_in_direction(
7427 &snapshot,
7428 selection.head(),
7429 false,
7430 snapshot
7431 .buffer_snapshot
7432 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7433 cx,
7434 ) {
7435 let wrapped_point = Point::zero();
7436 self.seek_in_direction(
7437 &snapshot,
7438 wrapped_point,
7439 true,
7440 snapshot
7441 .buffer_snapshot
7442 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7443 cx,
7444 );
7445 }
7446 }
7447
7448 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7449 let snapshot = self
7450 .display_map
7451 .update(cx, |display_map, cx| display_map.snapshot(cx));
7452 let selection = self.selections.newest::<Point>(cx);
7453
7454 if !self.seek_in_direction(
7455 &snapshot,
7456 selection.head(),
7457 false,
7458 snapshot
7459 .buffer_snapshot
7460 .git_diff_hunks_in_range_rev(0..selection.head().row),
7461 cx,
7462 ) {
7463 let wrapped_point = snapshot.buffer_snapshot.max_point();
7464 self.seek_in_direction(
7465 &snapshot,
7466 wrapped_point,
7467 true,
7468 snapshot
7469 .buffer_snapshot
7470 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7471 cx,
7472 );
7473 }
7474 }
7475
7476 fn seek_in_direction(
7477 &mut self,
7478 snapshot: &DisplaySnapshot,
7479 initial_point: Point,
7480 is_wrapped: bool,
7481 hunks: impl Iterator<Item = DiffHunk<u32>>,
7482 cx: &mut ViewContext<Editor>,
7483 ) -> bool {
7484 let display_point = initial_point.to_display_point(snapshot);
7485 let mut hunks = hunks
7486 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7487 .filter(|hunk| {
7488 if is_wrapped {
7489 true
7490 } else {
7491 !hunk.contains_display_row(display_point.row())
7492 }
7493 })
7494 .dedup();
7495
7496 if let Some(hunk) = hunks.next() {
7497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7498 let row = hunk.start_display_row();
7499 let point = DisplayPoint::new(row, 0);
7500 s.select_display_ranges([point..point]);
7501 });
7502
7503 true
7504 } else {
7505 false
7506 }
7507 }
7508
7509 pub fn go_to_definition(
7510 &mut self,
7511 _: &GoToDefinition,
7512 cx: &mut ViewContext<Self>,
7513 ) -> Task<Result<bool>> {
7514 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7515 }
7516
7517 pub fn go_to_implementation(
7518 &mut self,
7519 _: &GoToImplementation,
7520 cx: &mut ViewContext<Self>,
7521 ) -> Task<Result<bool>> {
7522 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7523 }
7524
7525 pub fn go_to_implementation_split(
7526 &mut self,
7527 _: &GoToImplementationSplit,
7528 cx: &mut ViewContext<Self>,
7529 ) -> Task<Result<bool>> {
7530 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7531 }
7532
7533 pub fn go_to_type_definition(
7534 &mut self,
7535 _: &GoToTypeDefinition,
7536 cx: &mut ViewContext<Self>,
7537 ) -> Task<Result<bool>> {
7538 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7539 }
7540
7541 pub fn go_to_definition_split(
7542 &mut self,
7543 _: &GoToDefinitionSplit,
7544 cx: &mut ViewContext<Self>,
7545 ) -> Task<Result<bool>> {
7546 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7547 }
7548
7549 pub fn go_to_type_definition_split(
7550 &mut self,
7551 _: &GoToTypeDefinitionSplit,
7552 cx: &mut ViewContext<Self>,
7553 ) -> Task<Result<bool>> {
7554 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7555 }
7556
7557 fn go_to_definition_of_kind(
7558 &mut self,
7559 kind: GotoDefinitionKind,
7560 split: bool,
7561 cx: &mut ViewContext<Self>,
7562 ) -> Task<Result<bool>> {
7563 let Some(workspace) = self.workspace() else {
7564 return Task::ready(Ok(false));
7565 };
7566 let buffer = self.buffer.read(cx);
7567 let head = self.selections.newest::<usize>(cx).head();
7568 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7569 text_anchor
7570 } else {
7571 return Task::ready(Ok(false));
7572 };
7573
7574 let project = workspace.read(cx).project().clone();
7575 let definitions = project.update(cx, |project, cx| match kind {
7576 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7577 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7578 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7579 });
7580
7581 cx.spawn(|editor, mut cx| async move {
7582 let definitions = definitions.await?;
7583 let navigated = editor
7584 .update(&mut cx, |editor, cx| {
7585 editor.navigate_to_hover_links(
7586 Some(kind),
7587 definitions.into_iter().map(HoverLink::Text).collect(),
7588 split,
7589 cx,
7590 )
7591 })?
7592 .await?;
7593 anyhow::Ok(navigated)
7594 })
7595 }
7596
7597 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7598 let position = self.selections.newest_anchor().head();
7599 let Some((buffer, buffer_position)) =
7600 self.buffer.read(cx).text_anchor_for_position(position, cx)
7601 else {
7602 return;
7603 };
7604
7605 cx.spawn(|editor, mut cx| async move {
7606 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7607 editor.update(&mut cx, |_, cx| {
7608 cx.open_url(&url);
7609 })
7610 } else {
7611 Ok(())
7612 }
7613 })
7614 .detach();
7615 }
7616
7617 pub(crate) fn navigate_to_hover_links(
7618 &mut self,
7619 kind: Option<GotoDefinitionKind>,
7620 mut definitions: Vec<HoverLink>,
7621 split: bool,
7622 cx: &mut ViewContext<Editor>,
7623 ) -> Task<Result<bool>> {
7624 // If there is one definition, just open it directly
7625 if definitions.len() == 1 {
7626 let definition = definitions.pop().unwrap();
7627 let target_task = match definition {
7628 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7629 HoverLink::InlayHint(lsp_location, server_id) => {
7630 self.compute_target_location(lsp_location, server_id, cx)
7631 }
7632 HoverLink::Url(url) => {
7633 cx.open_url(&url);
7634 Task::ready(Ok(None))
7635 }
7636 };
7637 cx.spawn(|editor, mut cx| async move {
7638 let target = target_task.await.context("target resolution task")?;
7639 if let Some(target) = target {
7640 editor.update(&mut cx, |editor, cx| {
7641 let Some(workspace) = editor.workspace() else {
7642 return false;
7643 };
7644 let pane = workspace.read(cx).active_pane().clone();
7645
7646 let range = target.range.to_offset(target.buffer.read(cx));
7647 let range = editor.range_for_match(&range);
7648 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7649 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7650 s.select_ranges([range]);
7651 });
7652 } else {
7653 cx.window_context().defer(move |cx| {
7654 let target_editor: View<Self> =
7655 workspace.update(cx, |workspace, cx| {
7656 let pane = if split {
7657 workspace.adjacent_pane(cx)
7658 } else {
7659 workspace.active_pane().clone()
7660 };
7661
7662 workspace.open_project_item(pane, target.buffer.clone(), cx)
7663 });
7664 target_editor.update(cx, |target_editor, cx| {
7665 // When selecting a definition in a different buffer, disable the nav history
7666 // to avoid creating a history entry at the previous cursor location.
7667 pane.update(cx, |pane, _| pane.disable_history());
7668 target_editor.change_selections(
7669 Some(Autoscroll::fit()),
7670 cx,
7671 |s| {
7672 s.select_ranges([range]);
7673 },
7674 );
7675 pane.update(cx, |pane, _| pane.enable_history());
7676 });
7677 });
7678 }
7679 true
7680 })
7681 } else {
7682 Ok(false)
7683 }
7684 })
7685 } else if !definitions.is_empty() {
7686 let replica_id = self.replica_id(cx);
7687 cx.spawn(|editor, mut cx| async move {
7688 let (title, location_tasks, workspace) = editor
7689 .update(&mut cx, |editor, cx| {
7690 let tab_kind = match kind {
7691 Some(GotoDefinitionKind::Implementation) => "Implementations",
7692 _ => "Definitions",
7693 };
7694 let title = definitions
7695 .iter()
7696 .find_map(|definition| match definition {
7697 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7698 let buffer = origin.buffer.read(cx);
7699 format!(
7700 "{} for {}",
7701 tab_kind,
7702 buffer
7703 .text_for_range(origin.range.clone())
7704 .collect::<String>()
7705 )
7706 }),
7707 HoverLink::InlayHint(_, _) => None,
7708 HoverLink::Url(_) => None,
7709 })
7710 .unwrap_or(tab_kind.to_string());
7711 let location_tasks = definitions
7712 .into_iter()
7713 .map(|definition| match definition {
7714 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7715 HoverLink::InlayHint(lsp_location, server_id) => {
7716 editor.compute_target_location(lsp_location, server_id, cx)
7717 }
7718 HoverLink::Url(_) => Task::ready(Ok(None)),
7719 })
7720 .collect::<Vec<_>>();
7721 (title, location_tasks, editor.workspace().clone())
7722 })
7723 .context("location tasks preparation")?;
7724
7725 let locations = futures::future::join_all(location_tasks)
7726 .await
7727 .into_iter()
7728 .filter_map(|location| location.transpose())
7729 .collect::<Result<_>>()
7730 .context("location tasks")?;
7731
7732 let Some(workspace) = workspace else {
7733 return Ok(false);
7734 };
7735 let opened = workspace
7736 .update(&mut cx, |workspace, cx| {
7737 Self::open_locations_in_multibuffer(
7738 workspace, locations, replica_id, title, split, cx,
7739 )
7740 })
7741 .ok();
7742
7743 anyhow::Ok(opened.is_some())
7744 })
7745 } else {
7746 Task::ready(Ok(false))
7747 }
7748 }
7749
7750 fn compute_target_location(
7751 &self,
7752 lsp_location: lsp::Location,
7753 server_id: LanguageServerId,
7754 cx: &mut ViewContext<Editor>,
7755 ) -> Task<anyhow::Result<Option<Location>>> {
7756 let Some(project) = self.project.clone() else {
7757 return Task::Ready(Some(Ok(None)));
7758 };
7759
7760 cx.spawn(move |editor, mut cx| async move {
7761 let location_task = editor.update(&mut cx, |editor, cx| {
7762 project.update(cx, |project, cx| {
7763 let language_server_name =
7764 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7765 project
7766 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7767 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7768 });
7769 language_server_name.map(|language_server_name| {
7770 project.open_local_buffer_via_lsp(
7771 lsp_location.uri.clone(),
7772 server_id,
7773 language_server_name,
7774 cx,
7775 )
7776 })
7777 })
7778 })?;
7779 let location = match location_task {
7780 Some(task) => Some({
7781 let target_buffer_handle = task.await.context("open local buffer")?;
7782 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7783 let target_start = target_buffer
7784 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7785 let target_end = target_buffer
7786 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7787 target_buffer.anchor_after(target_start)
7788 ..target_buffer.anchor_before(target_end)
7789 })?;
7790 Location {
7791 buffer: target_buffer_handle,
7792 range,
7793 }
7794 }),
7795 None => None,
7796 };
7797 Ok(location)
7798 })
7799 }
7800
7801 pub fn find_all_references(
7802 &mut self,
7803 _: &FindAllReferences,
7804 cx: &mut ViewContext<Self>,
7805 ) -> Option<Task<Result<()>>> {
7806 let multi_buffer = self.buffer.read(cx);
7807 let selection = self.selections.newest::<usize>(cx);
7808 let head = selection.head();
7809
7810 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7811 let head_anchor = multi_buffer_snapshot.anchor_at(
7812 head,
7813 if head < selection.tail() {
7814 Bias::Right
7815 } else {
7816 Bias::Left
7817 },
7818 );
7819 match self
7820 .find_all_references_task_sources
7821 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7822 {
7823 Ok(_) => {
7824 log::info!(
7825 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7826 );
7827 return None;
7828 }
7829 Err(i) => {
7830 self.find_all_references_task_sources.insert(i, head_anchor);
7831 }
7832 }
7833
7834 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7835 let replica_id = self.replica_id(cx);
7836 let workspace = self.workspace()?;
7837 let project = workspace.read(cx).project().clone();
7838 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7839 let open_task = cx.spawn(|editor, mut cx| async move {
7840 let mut locations = references.await?;
7841 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7842 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7843
7844 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7845 // So we will remove it from locations
7846 // If there is only one reference, we will not do this filter cause it may make locations empty
7847 if locations.len() > 1 {
7848 cx.update(|cx| {
7849 locations.retain(|location| {
7850 // fn foo(x : i64) {
7851 // ^
7852 // println!(x);
7853 // }
7854 // It is ok to find reference when caret being at ^ (the end of the word)
7855 // So we turn offset into inclusive to include the end of the word
7856 !location
7857 .range
7858 .to_offset(location.buffer.read(cx))
7859 .to_inclusive()
7860 .contains(&head_offset)
7861 });
7862 })?;
7863 }
7864
7865 if locations.is_empty() {
7866 return Ok(());
7867 }
7868
7869 // If there is one reference, just open it directly
7870 if locations.len() == 1 {
7871 let target = locations.pop().unwrap();
7872
7873 return editor.update(&mut cx, |editor, cx| {
7874 let range = target.range.to_offset(target.buffer.read(cx));
7875 let range = editor.range_for_match(&range);
7876
7877 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7878 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7879 s.select_ranges([range]);
7880 });
7881 } else {
7882 cx.window_context().defer(move |cx| {
7883 let target_editor: View<Self> =
7884 workspace.update(cx, |workspace, cx| {
7885 workspace.open_project_item(
7886 workspace.active_pane().clone(),
7887 target.buffer.clone(),
7888 cx,
7889 )
7890 });
7891 target_editor.update(cx, |target_editor, cx| {
7892 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7893 s.select_ranges([range]);
7894 })
7895 })
7896 })
7897 }
7898 });
7899 }
7900
7901 workspace.update(&mut cx, |workspace, cx| {
7902 let title = locations
7903 .first()
7904 .as_ref()
7905 .map(|location| {
7906 let buffer = location.buffer.read(cx);
7907 format!(
7908 "References to `{}`",
7909 buffer
7910 .text_for_range(location.range.clone())
7911 .collect::<String>()
7912 )
7913 })
7914 .unwrap();
7915 Self::open_locations_in_multibuffer(
7916 workspace, locations, replica_id, title, false, cx,
7917 );
7918 })?;
7919
7920 Ok(())
7921 });
7922 Some(cx.spawn(|editor, mut cx| async move {
7923 open_task.await?;
7924 editor.update(&mut cx, |editor, _| {
7925 if let Ok(i) =
7926 editor
7927 .find_all_references_task_sources
7928 .binary_search_by(|task_anchor| {
7929 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
7930 })
7931 {
7932 editor.find_all_references_task_sources.remove(i);
7933 }
7934 })?;
7935 anyhow::Ok(())
7936 }))
7937 }
7938
7939 /// Opens a multibuffer with the given project locations in it
7940 pub fn open_locations_in_multibuffer(
7941 workspace: &mut Workspace,
7942 mut locations: Vec<Location>,
7943 replica_id: ReplicaId,
7944 title: String,
7945 split: bool,
7946 cx: &mut ViewContext<Workspace>,
7947 ) {
7948 // If there are multiple definitions, open them in a multibuffer
7949 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7950 let mut locations = locations.into_iter().peekable();
7951 let mut ranges_to_highlight = Vec::new();
7952 let capability = workspace.project().read(cx).capability();
7953
7954 let excerpt_buffer = cx.new_model(|cx| {
7955 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7956 while let Some(location) = locations.next() {
7957 let buffer = location.buffer.read(cx);
7958 let mut ranges_for_buffer = Vec::new();
7959 let range = location.range.to_offset(buffer);
7960 ranges_for_buffer.push(range.clone());
7961
7962 while let Some(next_location) = locations.peek() {
7963 if next_location.buffer == location.buffer {
7964 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7965 locations.next();
7966 } else {
7967 break;
7968 }
7969 }
7970
7971 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7972 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7973 location.buffer.clone(),
7974 ranges_for_buffer,
7975 1,
7976 cx,
7977 ))
7978 }
7979
7980 multibuffer.with_title(title)
7981 });
7982
7983 let editor = cx.new_view(|cx| {
7984 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7985 });
7986 editor.update(cx, |editor, cx| {
7987 editor.highlight_background::<Self>(
7988 ranges_to_highlight,
7989 |theme| theme.editor_highlighted_line_background,
7990 cx,
7991 );
7992 });
7993 if split {
7994 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7995 } else {
7996 workspace.add_item_to_active_pane(Box::new(editor), cx);
7997 }
7998 }
7999
8000 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8001 use language::ToOffset as _;
8002
8003 let project = self.project.clone()?;
8004 let selection = self.selections.newest_anchor().clone();
8005 let (cursor_buffer, cursor_buffer_position) = self
8006 .buffer
8007 .read(cx)
8008 .text_anchor_for_position(selection.head(), cx)?;
8009 let (tail_buffer, _) = self
8010 .buffer
8011 .read(cx)
8012 .text_anchor_for_position(selection.tail(), cx)?;
8013 if tail_buffer != cursor_buffer {
8014 return None;
8015 }
8016
8017 let snapshot = cursor_buffer.read(cx).snapshot();
8018 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8019 let prepare_rename = project.update(cx, |project, cx| {
8020 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8021 });
8022 drop(snapshot);
8023
8024 Some(cx.spawn(|this, mut cx| async move {
8025 let rename_range = if let Some(range) = prepare_rename.await? {
8026 Some(range)
8027 } else {
8028 this.update(&mut cx, |this, cx| {
8029 let buffer = this.buffer.read(cx).snapshot(cx);
8030 let mut buffer_highlights = this
8031 .document_highlights_for_position(selection.head(), &buffer)
8032 .filter(|highlight| {
8033 highlight.start.excerpt_id == selection.head().excerpt_id
8034 && highlight.end.excerpt_id == selection.head().excerpt_id
8035 });
8036 buffer_highlights
8037 .next()
8038 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8039 })?
8040 };
8041 if let Some(rename_range) = rename_range {
8042 this.update(&mut cx, |this, cx| {
8043 let snapshot = cursor_buffer.read(cx).snapshot();
8044 let rename_buffer_range = rename_range.to_offset(&snapshot);
8045 let cursor_offset_in_rename_range =
8046 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8047
8048 this.take_rename(false, cx);
8049 let buffer = this.buffer.read(cx).read(cx);
8050 let cursor_offset = selection.head().to_offset(&buffer);
8051 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8052 let rename_end = rename_start + rename_buffer_range.len();
8053 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8054 let mut old_highlight_id = None;
8055 let old_name: Arc<str> = buffer
8056 .chunks(rename_start..rename_end, true)
8057 .map(|chunk| {
8058 if old_highlight_id.is_none() {
8059 old_highlight_id = chunk.syntax_highlight_id;
8060 }
8061 chunk.text
8062 })
8063 .collect::<String>()
8064 .into();
8065
8066 drop(buffer);
8067
8068 // Position the selection in the rename editor so that it matches the current selection.
8069 this.show_local_selections = false;
8070 let rename_editor = cx.new_view(|cx| {
8071 let mut editor = Editor::single_line(cx);
8072 editor.buffer.update(cx, |buffer, cx| {
8073 buffer.edit([(0..0, old_name.clone())], None, cx)
8074 });
8075 editor.select_all(&SelectAll, cx);
8076 editor
8077 });
8078
8079 let ranges = this
8080 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8081 .into_iter()
8082 .flat_map(|(_, ranges)| ranges.into_iter())
8083 .chain(
8084 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8085 .into_iter()
8086 .flat_map(|(_, ranges)| ranges.into_iter()),
8087 )
8088 .collect();
8089
8090 this.highlight_text::<Rename>(
8091 ranges,
8092 HighlightStyle {
8093 fade_out: Some(0.6),
8094 ..Default::default()
8095 },
8096 cx,
8097 );
8098 let rename_focus_handle = rename_editor.focus_handle(cx);
8099 cx.focus(&rename_focus_handle);
8100 let block_id = this.insert_blocks(
8101 [BlockProperties {
8102 style: BlockStyle::Flex,
8103 position: range.start,
8104 height: 1,
8105 render: Arc::new({
8106 let rename_editor = rename_editor.clone();
8107 move |cx: &mut BlockContext| {
8108 let mut text_style = cx.editor_style.text.clone();
8109 if let Some(highlight_style) = old_highlight_id
8110 .and_then(|h| h.style(&cx.editor_style.syntax))
8111 {
8112 text_style = text_style.highlight(highlight_style);
8113 }
8114 div()
8115 .pl(cx.anchor_x)
8116 .child(EditorElement::new(
8117 &rename_editor,
8118 EditorStyle {
8119 background: cx.theme().system().transparent,
8120 local_player: cx.editor_style.local_player,
8121 text: text_style,
8122 scrollbar_width: cx.editor_style.scrollbar_width,
8123 syntax: cx.editor_style.syntax.clone(),
8124 status: cx.editor_style.status.clone(),
8125 inlay_hints_style: HighlightStyle {
8126 color: Some(cx.theme().status().hint),
8127 font_weight: Some(FontWeight::BOLD),
8128 ..HighlightStyle::default()
8129 },
8130 suggestions_style: HighlightStyle {
8131 color: Some(cx.theme().status().predictive),
8132 ..HighlightStyle::default()
8133 },
8134 },
8135 ))
8136 .into_any_element()
8137 }
8138 }),
8139 disposition: BlockDisposition::Below,
8140 }],
8141 Some(Autoscroll::fit()),
8142 cx,
8143 )[0];
8144 this.pending_rename = Some(RenameState {
8145 range,
8146 old_name,
8147 editor: rename_editor,
8148 block_id,
8149 });
8150 })?;
8151 }
8152
8153 Ok(())
8154 }))
8155 }
8156
8157 pub fn confirm_rename(
8158 &mut self,
8159 _: &ConfirmRename,
8160 cx: &mut ViewContext<Self>,
8161 ) -> Option<Task<Result<()>>> {
8162 let rename = self.take_rename(false, cx)?;
8163 let workspace = self.workspace()?;
8164 let (start_buffer, start) = self
8165 .buffer
8166 .read(cx)
8167 .text_anchor_for_position(rename.range.start, cx)?;
8168 let (end_buffer, end) = self
8169 .buffer
8170 .read(cx)
8171 .text_anchor_for_position(rename.range.end, cx)?;
8172 if start_buffer != end_buffer {
8173 return None;
8174 }
8175
8176 let buffer = start_buffer;
8177 let range = start..end;
8178 let old_name = rename.old_name;
8179 let new_name = rename.editor.read(cx).text(cx);
8180
8181 let rename = workspace
8182 .read(cx)
8183 .project()
8184 .clone()
8185 .update(cx, |project, cx| {
8186 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8187 });
8188 let workspace = workspace.downgrade();
8189
8190 Some(cx.spawn(|editor, mut cx| async move {
8191 let project_transaction = rename.await?;
8192 Self::open_project_transaction(
8193 &editor,
8194 workspace,
8195 project_transaction,
8196 format!("Rename: {} → {}", old_name, new_name),
8197 cx.clone(),
8198 )
8199 .await?;
8200
8201 editor.update(&mut cx, |editor, cx| {
8202 editor.refresh_document_highlights(cx);
8203 })?;
8204 Ok(())
8205 }))
8206 }
8207
8208 fn take_rename(
8209 &mut self,
8210 moving_cursor: bool,
8211 cx: &mut ViewContext<Self>,
8212 ) -> Option<RenameState> {
8213 let rename = self.pending_rename.take()?;
8214 if rename.editor.focus_handle(cx).is_focused(cx) {
8215 cx.focus(&self.focus_handle);
8216 }
8217
8218 self.remove_blocks(
8219 [rename.block_id].into_iter().collect(),
8220 Some(Autoscroll::fit()),
8221 cx,
8222 );
8223 self.clear_highlights::<Rename>(cx);
8224 self.show_local_selections = true;
8225
8226 if moving_cursor {
8227 let rename_editor = rename.editor.read(cx);
8228 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8229
8230 // Update the selection to match the position of the selection inside
8231 // the rename editor.
8232 let snapshot = self.buffer.read(cx).read(cx);
8233 let rename_range = rename.range.to_offset(&snapshot);
8234 let cursor_in_editor = snapshot
8235 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8236 .min(rename_range.end);
8237 drop(snapshot);
8238
8239 self.change_selections(None, cx, |s| {
8240 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8241 });
8242 } else {
8243 self.refresh_document_highlights(cx);
8244 }
8245
8246 Some(rename)
8247 }
8248
8249 pub fn pending_rename(&self) -> Option<&RenameState> {
8250 self.pending_rename.as_ref()
8251 }
8252
8253 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8254 let project = match &self.project {
8255 Some(project) => project.clone(),
8256 None => return None,
8257 };
8258
8259 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8260 }
8261
8262 fn perform_format(
8263 &mut self,
8264 project: Model<Project>,
8265 trigger: FormatTrigger,
8266 cx: &mut ViewContext<Self>,
8267 ) -> Task<Result<()>> {
8268 let buffer = self.buffer().clone();
8269 let mut buffers = buffer.read(cx).all_buffers();
8270 if trigger == FormatTrigger::Save {
8271 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8272 }
8273
8274 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8275 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8276
8277 cx.spawn(|_, mut cx| async move {
8278 let transaction = futures::select_biased! {
8279 () = timeout => {
8280 log::warn!("timed out waiting for formatting");
8281 None
8282 }
8283 transaction = format.log_err().fuse() => transaction,
8284 };
8285
8286 buffer
8287 .update(&mut cx, |buffer, cx| {
8288 if let Some(transaction) = transaction {
8289 if !buffer.is_singleton() {
8290 buffer.push_transaction(&transaction.0, cx);
8291 }
8292 }
8293
8294 cx.notify();
8295 })
8296 .ok();
8297
8298 Ok(())
8299 })
8300 }
8301
8302 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8303 if let Some(project) = self.project.clone() {
8304 self.buffer.update(cx, |multi_buffer, cx| {
8305 project.update(cx, |project, cx| {
8306 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8307 });
8308 })
8309 }
8310 }
8311
8312 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8313 cx.show_character_palette();
8314 }
8315
8316 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8317 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8318 let buffer = self.buffer.read(cx).snapshot(cx);
8319 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8320 let is_valid = buffer
8321 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8322 .any(|entry| {
8323 entry.diagnostic.is_primary
8324 && !entry.range.is_empty()
8325 && entry.range.start == primary_range_start
8326 && entry.diagnostic.message == active_diagnostics.primary_message
8327 });
8328
8329 if is_valid != active_diagnostics.is_valid {
8330 active_diagnostics.is_valid = is_valid;
8331 let mut new_styles = HashMap::default();
8332 for (block_id, diagnostic) in &active_diagnostics.blocks {
8333 new_styles.insert(
8334 *block_id,
8335 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8336 );
8337 }
8338 self.display_map
8339 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8340 }
8341 }
8342 }
8343
8344 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8345 self.dismiss_diagnostics(cx);
8346 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8347 let buffer = self.buffer.read(cx).snapshot(cx);
8348
8349 let mut primary_range = None;
8350 let mut primary_message = None;
8351 let mut group_end = Point::zero();
8352 let diagnostic_group = buffer
8353 .diagnostic_group::<Point>(group_id)
8354 .map(|entry| {
8355 if entry.range.end > group_end {
8356 group_end = entry.range.end;
8357 }
8358 if entry.diagnostic.is_primary {
8359 primary_range = Some(entry.range.clone());
8360 primary_message = Some(entry.diagnostic.message.clone());
8361 }
8362 entry
8363 })
8364 .collect::<Vec<_>>();
8365 let primary_range = primary_range?;
8366 let primary_message = primary_message?;
8367 let primary_range =
8368 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8369
8370 let blocks = display_map
8371 .insert_blocks(
8372 diagnostic_group.iter().map(|entry| {
8373 let diagnostic = entry.diagnostic.clone();
8374 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8375 BlockProperties {
8376 style: BlockStyle::Fixed,
8377 position: buffer.anchor_after(entry.range.start),
8378 height: message_height,
8379 render: diagnostic_block_renderer(diagnostic, true),
8380 disposition: BlockDisposition::Below,
8381 }
8382 }),
8383 cx,
8384 )
8385 .into_iter()
8386 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8387 .collect();
8388
8389 Some(ActiveDiagnosticGroup {
8390 primary_range,
8391 primary_message,
8392 blocks,
8393 is_valid: true,
8394 })
8395 });
8396 self.active_diagnostics.is_some()
8397 }
8398
8399 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8400 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8401 self.display_map.update(cx, |display_map, cx| {
8402 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8403 });
8404 cx.notify();
8405 }
8406 }
8407
8408 pub fn set_selections_from_remote(
8409 &mut self,
8410 selections: Vec<Selection<Anchor>>,
8411 pending_selection: Option<Selection<Anchor>>,
8412 cx: &mut ViewContext<Self>,
8413 ) {
8414 let old_cursor_position = self.selections.newest_anchor().head();
8415 self.selections.change_with(cx, |s| {
8416 s.select_anchors(selections);
8417 if let Some(pending_selection) = pending_selection {
8418 s.set_pending(pending_selection, SelectMode::Character);
8419 } else {
8420 s.clear_pending();
8421 }
8422 });
8423 self.selections_did_change(false, &old_cursor_position, cx);
8424 }
8425
8426 fn push_to_selection_history(&mut self) {
8427 self.selection_history.push(SelectionHistoryEntry {
8428 selections: self.selections.disjoint_anchors(),
8429 select_next_state: self.select_next_state.clone(),
8430 select_prev_state: self.select_prev_state.clone(),
8431 add_selections_state: self.add_selections_state.clone(),
8432 });
8433 }
8434
8435 pub fn transact(
8436 &mut self,
8437 cx: &mut ViewContext<Self>,
8438 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8439 ) -> Option<TransactionId> {
8440 self.start_transaction_at(Instant::now(), cx);
8441 update(self, cx);
8442 self.end_transaction_at(Instant::now(), cx)
8443 }
8444
8445 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8446 self.end_selection(cx);
8447 if let Some(tx_id) = self
8448 .buffer
8449 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8450 {
8451 self.selection_history
8452 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8453 cx.emit(EditorEvent::TransactionBegun {
8454 transaction_id: tx_id,
8455 })
8456 }
8457 }
8458
8459 fn end_transaction_at(
8460 &mut self,
8461 now: Instant,
8462 cx: &mut ViewContext<Self>,
8463 ) -> Option<TransactionId> {
8464 if let Some(tx_id) = self
8465 .buffer
8466 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8467 {
8468 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8469 *end_selections = Some(self.selections.disjoint_anchors());
8470 } else {
8471 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8472 }
8473
8474 cx.emit(EditorEvent::Edited);
8475 Some(tx_id)
8476 } else {
8477 None
8478 }
8479 }
8480
8481 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8482 let mut fold_ranges = Vec::new();
8483
8484 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8485
8486 let selections = self.selections.all_adjusted(cx);
8487 for selection in selections {
8488 let range = selection.range().sorted();
8489 let buffer_start_row = range.start.row;
8490
8491 for row in (0..=range.end.row).rev() {
8492 let fold_range = display_map.foldable_range(row);
8493
8494 if let Some(fold_range) = fold_range {
8495 if fold_range.end.row >= buffer_start_row {
8496 fold_ranges.push(fold_range);
8497 if row <= range.start.row {
8498 break;
8499 }
8500 }
8501 }
8502 }
8503 }
8504
8505 self.fold_ranges(fold_ranges, true, cx);
8506 }
8507
8508 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8509 let buffer_row = fold_at.buffer_row;
8510 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8511
8512 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8513 let autoscroll = self
8514 .selections
8515 .all::<Point>(cx)
8516 .iter()
8517 .any(|selection| fold_range.overlaps(&selection.range()));
8518
8519 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8520 }
8521 }
8522
8523 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8524 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8525 let buffer = &display_map.buffer_snapshot;
8526 let selections = self.selections.all::<Point>(cx);
8527 let ranges = selections
8528 .iter()
8529 .map(|s| {
8530 let range = s.display_range(&display_map).sorted();
8531 let mut start = range.start.to_point(&display_map);
8532 let mut end = range.end.to_point(&display_map);
8533 start.column = 0;
8534 end.column = buffer.line_len(end.row);
8535 start..end
8536 })
8537 .collect::<Vec<_>>();
8538
8539 self.unfold_ranges(ranges, true, true, cx);
8540 }
8541
8542 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8543 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8544
8545 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8546 ..Point::new(
8547 unfold_at.buffer_row,
8548 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8549 );
8550
8551 let autoscroll = self
8552 .selections
8553 .all::<Point>(cx)
8554 .iter()
8555 .any(|selection| selection.range().overlaps(&intersection_range));
8556
8557 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8558 }
8559
8560 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8561 let selections = self.selections.all::<Point>(cx);
8562 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8563 let line_mode = self.selections.line_mode;
8564 let ranges = selections.into_iter().map(|s| {
8565 if line_mode {
8566 let start = Point::new(s.start.row, 0);
8567 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8568 start..end
8569 } else {
8570 s.start..s.end
8571 }
8572 });
8573 self.fold_ranges(ranges, true, cx);
8574 }
8575
8576 pub fn fold_ranges<T: ToOffset + Clone>(
8577 &mut self,
8578 ranges: impl IntoIterator<Item = Range<T>>,
8579 auto_scroll: bool,
8580 cx: &mut ViewContext<Self>,
8581 ) {
8582 let mut ranges = ranges.into_iter().peekable();
8583 if ranges.peek().is_some() {
8584 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8585
8586 if auto_scroll {
8587 self.request_autoscroll(Autoscroll::fit(), cx);
8588 }
8589
8590 cx.notify();
8591 }
8592 }
8593
8594 pub fn unfold_ranges<T: ToOffset + Clone>(
8595 &mut self,
8596 ranges: impl IntoIterator<Item = Range<T>>,
8597 inclusive: bool,
8598 auto_scroll: bool,
8599 cx: &mut ViewContext<Self>,
8600 ) {
8601 let mut ranges = ranges.into_iter().peekable();
8602 if ranges.peek().is_some() {
8603 self.display_map
8604 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8605 if auto_scroll {
8606 self.request_autoscroll(Autoscroll::fit(), cx);
8607 }
8608
8609 cx.notify();
8610 }
8611 }
8612
8613 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8614 if hovered != self.gutter_hovered {
8615 self.gutter_hovered = hovered;
8616 cx.notify();
8617 }
8618 }
8619
8620 pub fn insert_blocks(
8621 &mut self,
8622 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8623 autoscroll: Option<Autoscroll>,
8624 cx: &mut ViewContext<Self>,
8625 ) -> Vec<BlockId> {
8626 let blocks = self
8627 .display_map
8628 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8629 if let Some(autoscroll) = autoscroll {
8630 self.request_autoscroll(autoscroll, cx);
8631 }
8632 blocks
8633 }
8634
8635 pub fn replace_blocks(
8636 &mut self,
8637 blocks: HashMap<BlockId, RenderBlock>,
8638 autoscroll: Option<Autoscroll>,
8639 cx: &mut ViewContext<Self>,
8640 ) {
8641 self.display_map
8642 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8643 if let Some(autoscroll) = autoscroll {
8644 self.request_autoscroll(autoscroll, cx);
8645 }
8646 }
8647
8648 pub fn remove_blocks(
8649 &mut self,
8650 block_ids: HashSet<BlockId>,
8651 autoscroll: Option<Autoscroll>,
8652 cx: &mut ViewContext<Self>,
8653 ) {
8654 self.display_map.update(cx, |display_map, cx| {
8655 display_map.remove_blocks(block_ids, cx)
8656 });
8657 if let Some(autoscroll) = autoscroll {
8658 self.request_autoscroll(autoscroll, cx);
8659 }
8660 }
8661
8662 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8663 self.display_map
8664 .update(cx, |map, cx| map.snapshot(cx))
8665 .longest_row()
8666 }
8667
8668 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8669 self.display_map
8670 .update(cx, |map, cx| map.snapshot(cx))
8671 .max_point()
8672 }
8673
8674 pub fn text(&self, cx: &AppContext) -> String {
8675 self.buffer.read(cx).read(cx).text()
8676 }
8677
8678 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8679 let text = self.text(cx);
8680 let text = text.trim();
8681
8682 if text.is_empty() {
8683 return None;
8684 }
8685
8686 Some(text.to_string())
8687 }
8688
8689 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8690 self.transact(cx, |this, cx| {
8691 this.buffer
8692 .read(cx)
8693 .as_singleton()
8694 .expect("you can only call set_text on editors for singleton buffers")
8695 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8696 });
8697 }
8698
8699 pub fn display_text(&self, cx: &mut AppContext) -> String {
8700 self.display_map
8701 .update(cx, |map, cx| map.snapshot(cx))
8702 .text()
8703 }
8704
8705 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8706 let mut wrap_guides = smallvec::smallvec![];
8707
8708 if self.show_wrap_guides == Some(false) {
8709 return wrap_guides;
8710 }
8711
8712 let settings = self.buffer.read(cx).settings_at(0, cx);
8713 if settings.show_wrap_guides {
8714 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8715 wrap_guides.push((soft_wrap as usize, true));
8716 }
8717 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8718 }
8719
8720 wrap_guides
8721 }
8722
8723 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8724 let settings = self.buffer.read(cx).settings_at(0, cx);
8725 let mode = self
8726 .soft_wrap_mode_override
8727 .unwrap_or_else(|| settings.soft_wrap);
8728 match mode {
8729 language_settings::SoftWrap::None => SoftWrap::None,
8730 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8731 language_settings::SoftWrap::PreferredLineLength => {
8732 SoftWrap::Column(settings.preferred_line_length)
8733 }
8734 }
8735 }
8736
8737 pub fn set_soft_wrap_mode(
8738 &mut self,
8739 mode: language_settings::SoftWrap,
8740 cx: &mut ViewContext<Self>,
8741 ) {
8742 self.soft_wrap_mode_override = Some(mode);
8743 cx.notify();
8744 }
8745
8746 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8747 let rem_size = cx.rem_size();
8748 self.display_map.update(cx, |map, cx| {
8749 map.set_font(
8750 style.text.font(),
8751 style.text.font_size.to_pixels(rem_size),
8752 cx,
8753 )
8754 });
8755 self.style = Some(style);
8756 }
8757
8758 #[cfg(any(test, feature = "test-support"))]
8759 pub fn style(&self) -> Option<&EditorStyle> {
8760 self.style.as_ref()
8761 }
8762
8763 // Called by the element. This method is not designed to be called outside of the editor
8764 // element's layout code because it does not notify when rewrapping is computed synchronously.
8765 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8766 self.display_map
8767 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8768 }
8769
8770 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8771 if self.soft_wrap_mode_override.is_some() {
8772 self.soft_wrap_mode_override.take();
8773 } else {
8774 let soft_wrap = match self.soft_wrap_mode(cx) {
8775 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8776 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8777 };
8778 self.soft_wrap_mode_override = Some(soft_wrap);
8779 }
8780 cx.notify();
8781 }
8782
8783 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8784 let mut editor_settings = EditorSettings::get_global(cx).clone();
8785 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8786 EditorSettings::override_global(editor_settings, cx);
8787 }
8788
8789 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8790 self.show_gutter = show_gutter;
8791 cx.notify();
8792 }
8793
8794 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8795 self.show_wrap_guides = Some(show_gutter);
8796 cx.notify();
8797 }
8798
8799 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8800 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8801 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8802 cx.reveal_path(&file.abs_path(cx));
8803 }
8804 }
8805 }
8806
8807 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8808 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8809 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8810 if let Some(path) = file.abs_path(cx).to_str() {
8811 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8812 }
8813 }
8814 }
8815 }
8816
8817 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8818 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8819 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8820 if let Some(path) = file.path().to_str() {
8821 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8822 }
8823 }
8824 }
8825 }
8826
8827 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8828 use git::permalink::{build_permalink, BuildPermalinkParams};
8829
8830 let (path, repo) = maybe!({
8831 let project_handle = self.project.as_ref()?.clone();
8832 let project = project_handle.read(cx);
8833 let buffer = self.buffer().read(cx).as_singleton()?;
8834 let path = buffer
8835 .read(cx)
8836 .file()?
8837 .as_local()?
8838 .path()
8839 .to_str()?
8840 .to_string();
8841 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8842 Some((path, repo))
8843 })
8844 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8845
8846 const REMOTE_NAME: &str = "origin";
8847 let origin_url = repo
8848 .lock()
8849 .remote_url(REMOTE_NAME)
8850 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8851 let sha = repo
8852 .lock()
8853 .head_sha()
8854 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8855 let selections = self.selections.all::<Point>(cx);
8856 let selection = selections.iter().peekable().next();
8857
8858 build_permalink(BuildPermalinkParams {
8859 remote_url: &origin_url,
8860 sha: &sha,
8861 path: &path,
8862 selection: selection.map(|selection| selection.range()),
8863 })
8864 }
8865
8866 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8867 let permalink = self.get_permalink_to_line(cx);
8868
8869 match permalink {
8870 Ok(permalink) => {
8871 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8872 }
8873 Err(err) => {
8874 let message = format!("Failed to copy permalink: {err}");
8875
8876 Err::<(), anyhow::Error>(err).log_err();
8877
8878 if let Some(workspace) = self.workspace() {
8879 workspace.update(cx, |workspace, cx| {
8880 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8881 })
8882 }
8883 }
8884 }
8885 }
8886
8887 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8888 let permalink = self.get_permalink_to_line(cx);
8889
8890 match permalink {
8891 Ok(permalink) => {
8892 cx.open_url(permalink.as_ref());
8893 }
8894 Err(err) => {
8895 let message = format!("Failed to open permalink: {err}");
8896
8897 Err::<(), anyhow::Error>(err).log_err();
8898
8899 if let Some(workspace) = self.workspace() {
8900 workspace.update(cx, |workspace, cx| {
8901 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8902 })
8903 }
8904 }
8905 }
8906 }
8907
8908 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
8909 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
8910 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
8911 pub fn highlight_rows<T: 'static>(
8912 &mut self,
8913 rows: Range<Anchor>,
8914 color: Option<Hsla>,
8915 cx: &mut ViewContext<Self>,
8916 ) {
8917 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
8918 match self.highlighted_rows.entry(TypeId::of::<T>()) {
8919 hash_map::Entry::Occupied(o) => {
8920 let row_highlights = o.into_mut();
8921 let existing_highlight_index =
8922 row_highlights.binary_search_by(|(_, highlight_range, _)| {
8923 highlight_range
8924 .start
8925 .cmp(&rows.start, &multi_buffer_snapshot)
8926 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
8927 });
8928 match color {
8929 Some(color) => {
8930 let insert_index = match existing_highlight_index {
8931 Ok(i) => i,
8932 Err(i) => i,
8933 };
8934 row_highlights.insert(
8935 insert_index,
8936 (post_inc(&mut self.highlight_order), rows, color),
8937 );
8938 }
8939 None => {
8940 if let Ok(i) = existing_highlight_index {
8941 row_highlights.remove(i);
8942 }
8943 }
8944 }
8945 }
8946 hash_map::Entry::Vacant(v) => {
8947 if let Some(color) = color {
8948 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
8949 }
8950 }
8951 }
8952 }
8953
8954 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
8955 pub fn clear_row_highlights<T: 'static>(&mut self) {
8956 self.highlighted_rows.remove(&TypeId::of::<T>());
8957 }
8958
8959 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
8960 pub fn highlighted_rows<T: 'static>(
8961 &self,
8962 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
8963 Some(
8964 self.highlighted_rows
8965 .get(&TypeId::of::<T>())?
8966 .iter()
8967 .map(|(_, range, color)| (range, color)),
8968 )
8969 }
8970
8971 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
8972 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
8973 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
8974 let snapshot = self.snapshot(cx);
8975 let mut used_highlight_orders = HashMap::default();
8976 self.highlighted_rows
8977 .iter()
8978 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
8979 .fold(
8980 BTreeMap::<u32, Hsla>::new(),
8981 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
8982 let start_row = anchor_range.start.to_display_point(&snapshot).row();
8983 let end_row = anchor_range.end.to_display_point(&snapshot).row();
8984 for row in start_row..=end_row {
8985 let used_index =
8986 used_highlight_orders.entry(row).or_insert(*highlight_order);
8987 if highlight_order >= used_index {
8988 *used_index = *highlight_order;
8989 unique_rows.insert(row, *hsla);
8990 }
8991 }
8992 unique_rows
8993 },
8994 )
8995 }
8996
8997 pub fn highlight_background<T: 'static>(
8998 &mut self,
8999 ranges: Vec<Range<Anchor>>,
9000 color_fetcher: fn(&ThemeColors) -> Hsla,
9001 cx: &mut ViewContext<Self>,
9002 ) {
9003 let snapshot = self.snapshot(cx);
9004 // this is to try and catch a panic sooner
9005 for range in &ranges {
9006 snapshot
9007 .buffer_snapshot
9008 .summary_for_anchor::<usize>(&range.start);
9009 snapshot
9010 .buffer_snapshot
9011 .summary_for_anchor::<usize>(&range.end);
9012 }
9013
9014 self.background_highlights
9015 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9016 cx.notify();
9017 }
9018
9019 pub fn clear_background_highlights<T: 'static>(
9020 &mut self,
9021 _cx: &mut ViewContext<Self>,
9022 ) -> Option<BackgroundHighlight> {
9023 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9024 text_highlights
9025 }
9026
9027 #[cfg(feature = "test-support")]
9028 pub fn all_text_background_highlights(
9029 &mut self,
9030 cx: &mut ViewContext<Self>,
9031 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9032 let snapshot = self.snapshot(cx);
9033 let buffer = &snapshot.buffer_snapshot;
9034 let start = buffer.anchor_before(0);
9035 let end = buffer.anchor_after(buffer.len());
9036 let theme = cx.theme().colors();
9037 self.background_highlights_in_range(start..end, &snapshot, theme)
9038 }
9039
9040 fn document_highlights_for_position<'a>(
9041 &'a self,
9042 position: Anchor,
9043 buffer: &'a MultiBufferSnapshot,
9044 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9045 let read_highlights = self
9046 .background_highlights
9047 .get(&TypeId::of::<DocumentHighlightRead>())
9048 .map(|h| &h.1);
9049 let write_highlights = self
9050 .background_highlights
9051 .get(&TypeId::of::<DocumentHighlightWrite>())
9052 .map(|h| &h.1);
9053 let left_position = position.bias_left(buffer);
9054 let right_position = position.bias_right(buffer);
9055 read_highlights
9056 .into_iter()
9057 .chain(write_highlights)
9058 .flat_map(move |ranges| {
9059 let start_ix = match ranges.binary_search_by(|probe| {
9060 let cmp = probe.end.cmp(&left_position, buffer);
9061 if cmp.is_ge() {
9062 Ordering::Greater
9063 } else {
9064 Ordering::Less
9065 }
9066 }) {
9067 Ok(i) | Err(i) => i,
9068 };
9069
9070 ranges[start_ix..]
9071 .iter()
9072 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9073 })
9074 }
9075
9076 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9077 self.background_highlights
9078 .get(&TypeId::of::<T>())
9079 .map_or(false, |(_, highlights)| !highlights.is_empty())
9080 }
9081
9082 pub fn background_highlights_in_range(
9083 &self,
9084 search_range: Range<Anchor>,
9085 display_snapshot: &DisplaySnapshot,
9086 theme: &ThemeColors,
9087 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9088 let mut results = Vec::new();
9089 for (color_fetcher, ranges) in self.background_highlights.values() {
9090 let color = color_fetcher(theme);
9091 let start_ix = match ranges.binary_search_by(|probe| {
9092 let cmp = probe
9093 .end
9094 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9095 if cmp.is_gt() {
9096 Ordering::Greater
9097 } else {
9098 Ordering::Less
9099 }
9100 }) {
9101 Ok(i) | Err(i) => i,
9102 };
9103 for range in &ranges[start_ix..] {
9104 if range
9105 .start
9106 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9107 .is_ge()
9108 {
9109 break;
9110 }
9111
9112 let start = range.start.to_display_point(&display_snapshot);
9113 let end = range.end.to_display_point(&display_snapshot);
9114 results.push((start..end, color))
9115 }
9116 }
9117 results
9118 }
9119
9120 pub fn background_highlight_row_ranges<T: 'static>(
9121 &self,
9122 search_range: Range<Anchor>,
9123 display_snapshot: &DisplaySnapshot,
9124 count: usize,
9125 ) -> Vec<RangeInclusive<DisplayPoint>> {
9126 let mut results = Vec::new();
9127 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9128 return vec![];
9129 };
9130
9131 let start_ix = match ranges.binary_search_by(|probe| {
9132 let cmp = probe
9133 .end
9134 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9135 if cmp.is_gt() {
9136 Ordering::Greater
9137 } else {
9138 Ordering::Less
9139 }
9140 }) {
9141 Ok(i) | Err(i) => i,
9142 };
9143 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9144 if let (Some(start_display), Some(end_display)) = (start, end) {
9145 results.push(
9146 start_display.to_display_point(display_snapshot)
9147 ..=end_display.to_display_point(display_snapshot),
9148 );
9149 }
9150 };
9151 let mut start_row: Option<Point> = None;
9152 let mut end_row: Option<Point> = None;
9153 if ranges.len() > count {
9154 return Vec::new();
9155 }
9156 for range in &ranges[start_ix..] {
9157 if range
9158 .start
9159 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9160 .is_ge()
9161 {
9162 break;
9163 }
9164 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9165 if let Some(current_row) = &end_row {
9166 if end.row == current_row.row {
9167 continue;
9168 }
9169 }
9170 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9171 if start_row.is_none() {
9172 assert_eq!(end_row, None);
9173 start_row = Some(start);
9174 end_row = Some(end);
9175 continue;
9176 }
9177 if let Some(current_end) = end_row.as_mut() {
9178 if start.row > current_end.row + 1 {
9179 push_region(start_row, end_row);
9180 start_row = Some(start);
9181 end_row = Some(end);
9182 } else {
9183 // Merge two hunks.
9184 *current_end = end;
9185 }
9186 } else {
9187 unreachable!();
9188 }
9189 }
9190 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9191 push_region(start_row, end_row);
9192 results
9193 }
9194
9195 /// Get the text ranges corresponding to the redaction query
9196 pub fn redacted_ranges(
9197 &self,
9198 search_range: Range<Anchor>,
9199 display_snapshot: &DisplaySnapshot,
9200 cx: &WindowContext,
9201 ) -> Vec<Range<DisplayPoint>> {
9202 display_snapshot
9203 .buffer_snapshot
9204 .redacted_ranges(search_range, |file| {
9205 if let Some(file) = file {
9206 file.is_private()
9207 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9208 } else {
9209 false
9210 }
9211 })
9212 .map(|range| {
9213 range.start.to_display_point(display_snapshot)
9214 ..range.end.to_display_point(display_snapshot)
9215 })
9216 .collect()
9217 }
9218
9219 pub fn highlight_text<T: 'static>(
9220 &mut self,
9221 ranges: Vec<Range<Anchor>>,
9222 style: HighlightStyle,
9223 cx: &mut ViewContext<Self>,
9224 ) {
9225 self.display_map.update(cx, |map, _| {
9226 map.highlight_text(TypeId::of::<T>(), ranges, style)
9227 });
9228 cx.notify();
9229 }
9230
9231 pub(crate) fn highlight_inlays<T: 'static>(
9232 &mut self,
9233 highlights: Vec<InlayHighlight>,
9234 style: HighlightStyle,
9235 cx: &mut ViewContext<Self>,
9236 ) {
9237 self.display_map.update(cx, |map, _| {
9238 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9239 });
9240 cx.notify();
9241 }
9242
9243 pub fn text_highlights<'a, T: 'static>(
9244 &'a self,
9245 cx: &'a AppContext,
9246 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9247 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9248 }
9249
9250 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9251 let cleared = self
9252 .display_map
9253 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9254 if cleared {
9255 cx.notify();
9256 }
9257 }
9258
9259 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9260 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9261 && self.focus_handle.is_focused(cx)
9262 }
9263
9264 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9265 cx.notify();
9266 }
9267
9268 fn on_buffer_event(
9269 &mut self,
9270 multibuffer: Model<MultiBuffer>,
9271 event: &multi_buffer::Event,
9272 cx: &mut ViewContext<Self>,
9273 ) {
9274 match event {
9275 multi_buffer::Event::Edited {
9276 singleton_buffer_edited,
9277 } => {
9278 self.refresh_active_diagnostics(cx);
9279 self.refresh_code_actions(cx);
9280 if self.has_active_inline_completion(cx) {
9281 self.update_visible_inline_completion(cx);
9282 }
9283 cx.emit(EditorEvent::BufferEdited);
9284 cx.emit(SearchEvent::MatchesInvalidated);
9285
9286 if *singleton_buffer_edited {
9287 if let Some(project) = &self.project {
9288 let project = project.read(cx);
9289 let languages_affected = multibuffer
9290 .read(cx)
9291 .all_buffers()
9292 .into_iter()
9293 .filter_map(|buffer| {
9294 let buffer = buffer.read(cx);
9295 let language = buffer.language()?;
9296 if project.is_local()
9297 && project.language_servers_for_buffer(buffer, cx).count() == 0
9298 {
9299 None
9300 } else {
9301 Some(language)
9302 }
9303 })
9304 .cloned()
9305 .collect::<HashSet<_>>();
9306 if !languages_affected.is_empty() {
9307 self.refresh_inlay_hints(
9308 InlayHintRefreshReason::BufferEdited(languages_affected),
9309 cx,
9310 );
9311 }
9312 }
9313 }
9314
9315 let Some(project) = &self.project else { return };
9316 let telemetry = project.read(cx).client().telemetry().clone();
9317 telemetry.log_edit_event("editor");
9318 }
9319 multi_buffer::Event::ExcerptsAdded {
9320 buffer,
9321 predecessor,
9322 excerpts,
9323 } => {
9324 cx.emit(EditorEvent::ExcerptsAdded {
9325 buffer: buffer.clone(),
9326 predecessor: *predecessor,
9327 excerpts: excerpts.clone(),
9328 });
9329 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9330 }
9331 multi_buffer::Event::ExcerptsRemoved { ids } => {
9332 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9333 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9334 }
9335 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9336 multi_buffer::Event::LanguageChanged => {
9337 cx.emit(EditorEvent::Reparsed);
9338 cx.notify();
9339 }
9340 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9341 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9342 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9343 cx.emit(EditorEvent::TitleChanged)
9344 }
9345 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9346 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9347 multi_buffer::Event::DiagnosticsUpdated => {
9348 self.refresh_active_diagnostics(cx);
9349 }
9350 _ => {}
9351 };
9352 }
9353
9354 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9355 cx.notify();
9356 }
9357
9358 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9359 self.refresh_inline_completion(true, cx);
9360 self.refresh_inlay_hints(
9361 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9362 self.selections.newest_anchor().head(),
9363 &self.buffer.read(cx).snapshot(cx),
9364 cx,
9365 )),
9366 cx,
9367 );
9368 let editor_settings = EditorSettings::get_global(cx);
9369 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9370 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9371 cx.notify();
9372 }
9373
9374 pub fn set_searchable(&mut self, searchable: bool) {
9375 self.searchable = searchable;
9376 }
9377
9378 pub fn searchable(&self) -> bool {
9379 self.searchable
9380 }
9381
9382 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9383 self.open_excerpts_common(true, cx)
9384 }
9385
9386 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9387 self.open_excerpts_common(false, cx)
9388 }
9389
9390 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9391 let buffer = self.buffer.read(cx);
9392 if buffer.is_singleton() {
9393 cx.propagate();
9394 return;
9395 }
9396
9397 let Some(workspace) = self.workspace() else {
9398 cx.propagate();
9399 return;
9400 };
9401
9402 let mut new_selections_by_buffer = HashMap::default();
9403 for selection in self.selections.all::<usize>(cx) {
9404 for (buffer, mut range, _) in
9405 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9406 {
9407 if selection.reversed {
9408 mem::swap(&mut range.start, &mut range.end);
9409 }
9410 new_selections_by_buffer
9411 .entry(buffer)
9412 .or_insert(Vec::new())
9413 .push(range)
9414 }
9415 }
9416
9417 // We defer the pane interaction because we ourselves are a workspace item
9418 // and activating a new item causes the pane to call a method on us reentrantly,
9419 // which panics if we're on the stack.
9420 cx.window_context().defer(move |cx| {
9421 workspace.update(cx, |workspace, cx| {
9422 let pane = if split {
9423 workspace.adjacent_pane(cx)
9424 } else {
9425 workspace.active_pane().clone()
9426 };
9427
9428 for (buffer, ranges) in new_selections_by_buffer {
9429 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9430 editor.update(cx, |editor, cx| {
9431 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9432 s.select_ranges(ranges);
9433 });
9434 });
9435 }
9436 })
9437 });
9438 }
9439
9440 fn jump(
9441 &mut self,
9442 path: ProjectPath,
9443 position: Point,
9444 anchor: language::Anchor,
9445 cx: &mut ViewContext<Self>,
9446 ) {
9447 let workspace = self.workspace();
9448 cx.spawn(|_, mut cx| async move {
9449 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9450 let editor = workspace.update(&mut cx, |workspace, cx| {
9451 workspace.open_path(path, None, true, cx)
9452 })?;
9453 let editor = editor
9454 .await?
9455 .downcast::<Editor>()
9456 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9457 .downgrade();
9458 editor.update(&mut cx, |editor, cx| {
9459 let buffer = editor
9460 .buffer()
9461 .read(cx)
9462 .as_singleton()
9463 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9464 let buffer = buffer.read(cx);
9465 let cursor = if buffer.can_resolve(&anchor) {
9466 language::ToPoint::to_point(&anchor, buffer)
9467 } else {
9468 buffer.clip_point(position, Bias::Left)
9469 };
9470
9471 let nav_history = editor.nav_history.take();
9472 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9473 s.select_ranges([cursor..cursor]);
9474 });
9475 editor.nav_history = nav_history;
9476
9477 anyhow::Ok(())
9478 })??;
9479
9480 anyhow::Ok(())
9481 })
9482 .detach_and_log_err(cx);
9483 }
9484
9485 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9486 let snapshot = self.buffer.read(cx).read(cx);
9487 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9488 Some(
9489 ranges
9490 .iter()
9491 .map(move |range| {
9492 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9493 })
9494 .collect(),
9495 )
9496 }
9497
9498 fn selection_replacement_ranges(
9499 &self,
9500 range: Range<OffsetUtf16>,
9501 cx: &AppContext,
9502 ) -> Vec<Range<OffsetUtf16>> {
9503 let selections = self.selections.all::<OffsetUtf16>(cx);
9504 let newest_selection = selections
9505 .iter()
9506 .max_by_key(|selection| selection.id)
9507 .unwrap();
9508 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9509 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9510 let snapshot = self.buffer.read(cx).read(cx);
9511 selections
9512 .into_iter()
9513 .map(|mut selection| {
9514 selection.start.0 =
9515 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9516 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9517 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9518 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9519 })
9520 .collect()
9521 }
9522
9523 fn report_editor_event(
9524 &self,
9525 operation: &'static str,
9526 file_extension: Option<String>,
9527 cx: &AppContext,
9528 ) {
9529 if cfg!(any(test, feature = "test-support")) {
9530 return;
9531 }
9532
9533 let Some(project) = &self.project else { return };
9534
9535 // If None, we are in a file without an extension
9536 let file = self
9537 .buffer
9538 .read(cx)
9539 .as_singleton()
9540 .and_then(|b| b.read(cx).file());
9541 let file_extension = file_extension.or(file
9542 .as_ref()
9543 .and_then(|file| Path::new(file.file_name(cx)).extension())
9544 .and_then(|e| e.to_str())
9545 .map(|a| a.to_string()));
9546
9547 let vim_mode = cx
9548 .global::<SettingsStore>()
9549 .raw_user_settings()
9550 .get("vim_mode")
9551 == Some(&serde_json::Value::Bool(true));
9552 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9553 let copilot_enabled_for_language = self
9554 .buffer
9555 .read(cx)
9556 .settings_at(0, cx)
9557 .show_copilot_suggestions;
9558
9559 let telemetry = project.read(cx).client().telemetry().clone();
9560 telemetry.report_editor_event(
9561 file_extension,
9562 vim_mode,
9563 operation,
9564 copilot_enabled,
9565 copilot_enabled_for_language,
9566 )
9567 }
9568
9569 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9570 /// with each line being an array of {text, highlight} objects.
9571 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9572 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9573 return;
9574 };
9575
9576 #[derive(Serialize)]
9577 struct Chunk<'a> {
9578 text: String,
9579 highlight: Option<&'a str>,
9580 }
9581
9582 let snapshot = buffer.read(cx).snapshot();
9583 let range = self
9584 .selected_text_range(cx)
9585 .and_then(|selected_range| {
9586 if selected_range.is_empty() {
9587 None
9588 } else {
9589 Some(selected_range)
9590 }
9591 })
9592 .unwrap_or_else(|| 0..snapshot.len());
9593
9594 let chunks = snapshot.chunks(range, true);
9595 let mut lines = Vec::new();
9596 let mut line: VecDeque<Chunk> = VecDeque::new();
9597
9598 let Some(style) = self.style.as_ref() else {
9599 return;
9600 };
9601
9602 for chunk in chunks {
9603 let highlight = chunk
9604 .syntax_highlight_id
9605 .and_then(|id| id.name(&style.syntax));
9606 let mut chunk_lines = chunk.text.split('\n').peekable();
9607 while let Some(text) = chunk_lines.next() {
9608 let mut merged_with_last_token = false;
9609 if let Some(last_token) = line.back_mut() {
9610 if last_token.highlight == highlight {
9611 last_token.text.push_str(text);
9612 merged_with_last_token = true;
9613 }
9614 }
9615
9616 if !merged_with_last_token {
9617 line.push_back(Chunk {
9618 text: text.into(),
9619 highlight,
9620 });
9621 }
9622
9623 if chunk_lines.peek().is_some() {
9624 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9625 line.pop_front();
9626 }
9627 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9628 line.pop_back();
9629 }
9630
9631 lines.push(mem::take(&mut line));
9632 }
9633 }
9634 }
9635
9636 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9637 return;
9638 };
9639 cx.write_to_clipboard(ClipboardItem::new(lines));
9640 }
9641
9642 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9643 &self.inlay_hint_cache
9644 }
9645
9646 pub fn replay_insert_event(
9647 &mut self,
9648 text: &str,
9649 relative_utf16_range: Option<Range<isize>>,
9650 cx: &mut ViewContext<Self>,
9651 ) {
9652 if !self.input_enabled {
9653 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9654 return;
9655 }
9656 if let Some(relative_utf16_range) = relative_utf16_range {
9657 let selections = self.selections.all::<OffsetUtf16>(cx);
9658 self.change_selections(None, cx, |s| {
9659 let new_ranges = selections.into_iter().map(|range| {
9660 let start = OffsetUtf16(
9661 range
9662 .head()
9663 .0
9664 .saturating_add_signed(relative_utf16_range.start),
9665 );
9666 let end = OffsetUtf16(
9667 range
9668 .head()
9669 .0
9670 .saturating_add_signed(relative_utf16_range.end),
9671 );
9672 start..end
9673 });
9674 s.select_ranges(new_ranges);
9675 });
9676 }
9677
9678 self.handle_input(text, cx);
9679 }
9680
9681 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9682 let Some(project) = self.project.as_ref() else {
9683 return false;
9684 };
9685 let project = project.read(cx);
9686
9687 let mut supports = false;
9688 self.buffer().read(cx).for_each_buffer(|buffer| {
9689 if !supports {
9690 supports = project
9691 .language_servers_for_buffer(buffer.read(cx), cx)
9692 .any(
9693 |(_, server)| match server.capabilities().inlay_hint_provider {
9694 Some(lsp::OneOf::Left(enabled)) => enabled,
9695 Some(lsp::OneOf::Right(_)) => true,
9696 None => false,
9697 },
9698 )
9699 }
9700 });
9701 supports
9702 }
9703
9704 pub fn focus(&self, cx: &mut WindowContext) {
9705 cx.focus(&self.focus_handle)
9706 }
9707
9708 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9709 self.focus_handle.is_focused(cx)
9710 }
9711
9712 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9713 cx.emit(EditorEvent::Focused);
9714
9715 if let Some(rename) = self.pending_rename.as_ref() {
9716 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9717 cx.focus(&rename_editor_focus_handle);
9718 } else {
9719 self.blink_manager.update(cx, BlinkManager::enable);
9720 self.show_cursor_names(cx);
9721 self.buffer.update(cx, |buffer, cx| {
9722 buffer.finalize_last_transaction(cx);
9723 if self.leader_peer_id.is_none() {
9724 buffer.set_active_selections(
9725 &self.selections.disjoint_anchors(),
9726 self.selections.line_mode,
9727 self.cursor_shape,
9728 cx,
9729 );
9730 }
9731 });
9732 }
9733 }
9734
9735 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9736 self.blink_manager.update(cx, BlinkManager::disable);
9737 self.buffer
9738 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9739 self.hide_context_menu(cx);
9740 hide_hover(self, cx);
9741 cx.emit(EditorEvent::Blurred);
9742 cx.notify();
9743 }
9744
9745 pub fn register_action<A: Action>(
9746 &mut self,
9747 listener: impl Fn(&A, &mut WindowContext) + 'static,
9748 ) -> &mut Self {
9749 let listener = Arc::new(listener);
9750
9751 self.editor_actions.push(Box::new(move |cx| {
9752 let _view = cx.view().clone();
9753 let cx = cx.window_context();
9754 let listener = listener.clone();
9755 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9756 let action = action.downcast_ref().unwrap();
9757 if phase == DispatchPhase::Bubble {
9758 listener(action, cx)
9759 }
9760 })
9761 }));
9762 self
9763 }
9764}
9765
9766pub trait CollaborationHub {
9767 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9768 fn user_participant_indices<'a>(
9769 &self,
9770 cx: &'a AppContext,
9771 ) -> &'a HashMap<u64, ParticipantIndex>;
9772 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9773}
9774
9775impl CollaborationHub for Model<Project> {
9776 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9777 self.read(cx).collaborators()
9778 }
9779
9780 fn user_participant_indices<'a>(
9781 &self,
9782 cx: &'a AppContext,
9783 ) -> &'a HashMap<u64, ParticipantIndex> {
9784 self.read(cx).user_store().read(cx).participant_indices()
9785 }
9786
9787 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9788 let this = self.read(cx);
9789 let user_ids = this.collaborators().values().map(|c| c.user_id);
9790 this.user_store().read_with(cx, |user_store, cx| {
9791 user_store.participant_names(user_ids, cx)
9792 })
9793 }
9794}
9795
9796pub trait CompletionProvider {
9797 fn completions(
9798 &self,
9799 buffer: &Model<Buffer>,
9800 buffer_position: text::Anchor,
9801 cx: &mut ViewContext<Editor>,
9802 ) -> Task<Result<Vec<Completion>>>;
9803
9804 fn resolve_completions(
9805 &self,
9806 completion_indices: Vec<usize>,
9807 completions: Arc<RwLock<Box<[Completion]>>>,
9808 cx: &mut ViewContext<Editor>,
9809 ) -> Task<Result<bool>>;
9810
9811 fn apply_additional_edits_for_completion(
9812 &self,
9813 buffer: Model<Buffer>,
9814 completion: Completion,
9815 push_to_history: bool,
9816 cx: &mut ViewContext<Editor>,
9817 ) -> Task<Result<Option<language::Transaction>>>;
9818}
9819
9820impl CompletionProvider for Model<Project> {
9821 fn completions(
9822 &self,
9823 buffer: &Model<Buffer>,
9824 buffer_position: text::Anchor,
9825 cx: &mut ViewContext<Editor>,
9826 ) -> Task<Result<Vec<Completion>>> {
9827 self.update(cx, |project, cx| {
9828 project.completions(&buffer, buffer_position, cx)
9829 })
9830 }
9831
9832 fn resolve_completions(
9833 &self,
9834 completion_indices: Vec<usize>,
9835 completions: Arc<RwLock<Box<[Completion]>>>,
9836 cx: &mut ViewContext<Editor>,
9837 ) -> Task<Result<bool>> {
9838 self.update(cx, |project, cx| {
9839 project.resolve_completions(completion_indices, completions, cx)
9840 })
9841 }
9842
9843 fn apply_additional_edits_for_completion(
9844 &self,
9845 buffer: Model<Buffer>,
9846 completion: Completion,
9847 push_to_history: bool,
9848 cx: &mut ViewContext<Editor>,
9849 ) -> Task<Result<Option<language::Transaction>>> {
9850 self.update(cx, |project, cx| {
9851 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9852 })
9853 }
9854}
9855
9856fn inlay_hint_settings(
9857 location: Anchor,
9858 snapshot: &MultiBufferSnapshot,
9859 cx: &mut ViewContext<'_, Editor>,
9860) -> InlayHintSettings {
9861 let file = snapshot.file_at(location);
9862 let language = snapshot.language_at(location);
9863 let settings = all_language_settings(file, cx);
9864 settings
9865 .language(language.map(|l| l.name()).as_deref())
9866 .inlay_hints
9867}
9868
9869fn consume_contiguous_rows(
9870 contiguous_row_selections: &mut Vec<Selection<Point>>,
9871 selection: &Selection<Point>,
9872 display_map: &DisplaySnapshot,
9873 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9874) -> (u32, u32) {
9875 contiguous_row_selections.push(selection.clone());
9876 let start_row = selection.start.row;
9877 let mut end_row = ending_row(selection, display_map);
9878
9879 while let Some(next_selection) = selections.peek() {
9880 if next_selection.start.row <= end_row {
9881 end_row = ending_row(next_selection, display_map);
9882 contiguous_row_selections.push(selections.next().unwrap().clone());
9883 } else {
9884 break;
9885 }
9886 }
9887 (start_row, end_row)
9888}
9889
9890fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9891 if next_selection.end.column > 0 || next_selection.is_empty() {
9892 display_map.next_line_boundary(next_selection.end).0.row + 1
9893 } else {
9894 next_selection.end.row
9895 }
9896}
9897
9898impl EditorSnapshot {
9899 pub fn remote_selections_in_range<'a>(
9900 &'a self,
9901 range: &'a Range<Anchor>,
9902 collaboration_hub: &dyn CollaborationHub,
9903 cx: &'a AppContext,
9904 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9905 let participant_names = collaboration_hub.user_names(cx);
9906 let participant_indices = collaboration_hub.user_participant_indices(cx);
9907 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9908 let collaborators_by_replica_id = collaborators_by_peer_id
9909 .iter()
9910 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9911 .collect::<HashMap<_, _>>();
9912 self.buffer_snapshot
9913 .remote_selections_in_range(range)
9914 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9915 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9916 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9917 let user_name = participant_names.get(&collaborator.user_id).cloned();
9918 Some(RemoteSelection {
9919 replica_id,
9920 selection,
9921 cursor_shape,
9922 line_mode,
9923 participant_index,
9924 peer_id: collaborator.peer_id,
9925 user_name,
9926 })
9927 })
9928 }
9929
9930 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9931 self.display_snapshot.buffer_snapshot.language_at(position)
9932 }
9933
9934 pub fn is_focused(&self) -> bool {
9935 self.is_focused
9936 }
9937
9938 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9939 self.placeholder_text.as_ref()
9940 }
9941
9942 pub fn scroll_position(&self) -> gpui::Point<f32> {
9943 self.scroll_anchor.scroll_position(&self.display_snapshot)
9944 }
9945
9946 pub fn gutter_dimensions(
9947 &self,
9948 font_id: FontId,
9949 font_size: Pixels,
9950 em_width: Pixels,
9951 max_line_number_width: Pixels,
9952 cx: &AppContext,
9953 ) -> GutterDimensions {
9954 if !self.show_gutter {
9955 return GutterDimensions::default();
9956 }
9957 let descent = cx.text_system().descent(font_id, font_size);
9958
9959 let show_git_gutter = matches!(
9960 ProjectSettings::get_global(cx).git.git_gutter,
9961 Some(GitGutterSetting::TrackedFiles)
9962 );
9963 let gutter_settings = EditorSettings::get_global(cx).gutter;
9964
9965 let line_gutter_width = if gutter_settings.line_numbers {
9966 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9967 let min_width_for_number_on_gutter = em_width * 4.0;
9968 max_line_number_width.max(min_width_for_number_on_gutter)
9969 } else {
9970 0.0.into()
9971 };
9972
9973 let left_padding = if gutter_settings.code_actions {
9974 em_width * 3.0
9975 } else if show_git_gutter && gutter_settings.line_numbers {
9976 em_width * 2.0
9977 } else if show_git_gutter || gutter_settings.line_numbers {
9978 em_width
9979 } else {
9980 px(0.)
9981 };
9982
9983 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9984 em_width * 4.0
9985 } else if gutter_settings.folds {
9986 em_width * 3.0
9987 } else if gutter_settings.line_numbers {
9988 em_width
9989 } else {
9990 px(0.)
9991 };
9992
9993 GutterDimensions {
9994 left_padding,
9995 right_padding,
9996 width: line_gutter_width + left_padding + right_padding,
9997 margin: -descent,
9998 }
9999 }
10000}
10001
10002impl Deref for EditorSnapshot {
10003 type Target = DisplaySnapshot;
10004
10005 fn deref(&self) -> &Self::Target {
10006 &self.display_snapshot
10007 }
10008}
10009
10010#[derive(Clone, Debug, PartialEq, Eq)]
10011pub enum EditorEvent {
10012 InputIgnored {
10013 text: Arc<str>,
10014 },
10015 InputHandled {
10016 utf16_range_to_replace: Option<Range<isize>>,
10017 text: Arc<str>,
10018 },
10019 ExcerptsAdded {
10020 buffer: Model<Buffer>,
10021 predecessor: ExcerptId,
10022 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10023 },
10024 ExcerptsRemoved {
10025 ids: Vec<ExcerptId>,
10026 },
10027 BufferEdited,
10028 Edited,
10029 Reparsed,
10030 Focused,
10031 Blurred,
10032 DirtyChanged,
10033 Saved,
10034 TitleChanged,
10035 DiffBaseChanged,
10036 SelectionsChanged {
10037 local: bool,
10038 },
10039 ScrollPositionChanged {
10040 local: bool,
10041 autoscroll: bool,
10042 },
10043 Closed,
10044 TransactionUndone {
10045 transaction_id: clock::Lamport,
10046 },
10047 TransactionBegun {
10048 transaction_id: clock::Lamport,
10049 },
10050}
10051
10052impl EventEmitter<EditorEvent> for Editor {}
10053
10054impl FocusableView for Editor {
10055 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10056 self.focus_handle.clone()
10057 }
10058}
10059
10060impl Render for Editor {
10061 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10062 let settings = ThemeSettings::get_global(cx);
10063 let text_style = match self.mode {
10064 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10065 color: cx.theme().colors().editor_foreground,
10066 font_family: settings.ui_font.family.clone(),
10067 font_features: settings.ui_font.features,
10068 font_size: rems(0.875).into(),
10069 font_weight: FontWeight::NORMAL,
10070 font_style: FontStyle::Normal,
10071 line_height: relative(settings.buffer_line_height.value()),
10072 background_color: None,
10073 underline: None,
10074 strikethrough: None,
10075 white_space: WhiteSpace::Normal,
10076 },
10077
10078 EditorMode::Full => TextStyle {
10079 color: cx.theme().colors().editor_foreground,
10080 font_family: settings.buffer_font.family.clone(),
10081 font_features: settings.buffer_font.features,
10082 font_size: settings.buffer_font_size(cx).into(),
10083 font_weight: FontWeight::NORMAL,
10084 font_style: FontStyle::Normal,
10085 line_height: relative(settings.buffer_line_height.value()),
10086 background_color: None,
10087 underline: None,
10088 strikethrough: None,
10089 white_space: WhiteSpace::Normal,
10090 },
10091 };
10092
10093 let background = match self.mode {
10094 EditorMode::SingleLine => cx.theme().system().transparent,
10095 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10096 EditorMode::Full => cx.theme().colors().editor_background,
10097 };
10098
10099 EditorElement::new(
10100 cx.view(),
10101 EditorStyle {
10102 background,
10103 local_player: cx.theme().players().local(),
10104 text: text_style,
10105 scrollbar_width: px(12.),
10106 syntax: cx.theme().syntax().clone(),
10107 status: cx.theme().status().clone(),
10108 inlay_hints_style: HighlightStyle {
10109 color: Some(cx.theme().status().hint),
10110 ..HighlightStyle::default()
10111 },
10112 suggestions_style: HighlightStyle {
10113 color: Some(cx.theme().status().predictive),
10114 ..HighlightStyle::default()
10115 },
10116 },
10117 )
10118 }
10119}
10120
10121impl ViewInputHandler for Editor {
10122 fn text_for_range(
10123 &mut self,
10124 range_utf16: Range<usize>,
10125 cx: &mut ViewContext<Self>,
10126 ) -> Option<String> {
10127 Some(
10128 self.buffer
10129 .read(cx)
10130 .read(cx)
10131 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10132 .collect(),
10133 )
10134 }
10135
10136 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10137 // Prevent the IME menu from appearing when holding down an alphabetic key
10138 // while input is disabled.
10139 if !self.input_enabled {
10140 return None;
10141 }
10142
10143 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10144 Some(range.start.0..range.end.0)
10145 }
10146
10147 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10148 let snapshot = self.buffer.read(cx).read(cx);
10149 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10150 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10151 }
10152
10153 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10154 self.clear_highlights::<InputComposition>(cx);
10155 self.ime_transaction.take();
10156 }
10157
10158 fn replace_text_in_range(
10159 &mut self,
10160 range_utf16: Option<Range<usize>>,
10161 text: &str,
10162 cx: &mut ViewContext<Self>,
10163 ) {
10164 if !self.input_enabled {
10165 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10166 return;
10167 }
10168
10169 self.transact(cx, |this, cx| {
10170 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10171 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10172 Some(this.selection_replacement_ranges(range_utf16, cx))
10173 } else {
10174 this.marked_text_ranges(cx)
10175 };
10176
10177 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10178 let newest_selection_id = this.selections.newest_anchor().id;
10179 this.selections
10180 .all::<OffsetUtf16>(cx)
10181 .iter()
10182 .zip(ranges_to_replace.iter())
10183 .find_map(|(selection, range)| {
10184 if selection.id == newest_selection_id {
10185 Some(
10186 (range.start.0 as isize - selection.head().0 as isize)
10187 ..(range.end.0 as isize - selection.head().0 as isize),
10188 )
10189 } else {
10190 None
10191 }
10192 })
10193 });
10194
10195 cx.emit(EditorEvent::InputHandled {
10196 utf16_range_to_replace: range_to_replace,
10197 text: text.into(),
10198 });
10199
10200 if let Some(new_selected_ranges) = new_selected_ranges {
10201 this.change_selections(None, cx, |selections| {
10202 selections.select_ranges(new_selected_ranges)
10203 });
10204 this.backspace(&Default::default(), cx);
10205 }
10206
10207 this.handle_input(text, cx);
10208 });
10209
10210 if let Some(transaction) = self.ime_transaction {
10211 self.buffer.update(cx, |buffer, cx| {
10212 buffer.group_until_transaction(transaction, cx);
10213 });
10214 }
10215
10216 self.unmark_text(cx);
10217 }
10218
10219 fn replace_and_mark_text_in_range(
10220 &mut self,
10221 range_utf16: Option<Range<usize>>,
10222 text: &str,
10223 new_selected_range_utf16: Option<Range<usize>>,
10224 cx: &mut ViewContext<Self>,
10225 ) {
10226 if !self.input_enabled {
10227 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10228 return;
10229 }
10230
10231 let transaction = self.transact(cx, |this, cx| {
10232 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10233 let snapshot = this.buffer.read(cx).read(cx);
10234 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10235 for marked_range in &mut marked_ranges {
10236 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10237 marked_range.start.0 += relative_range_utf16.start;
10238 marked_range.start =
10239 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10240 marked_range.end =
10241 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10242 }
10243 }
10244 Some(marked_ranges)
10245 } else if let Some(range_utf16) = range_utf16 {
10246 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10247 Some(this.selection_replacement_ranges(range_utf16, cx))
10248 } else {
10249 None
10250 };
10251
10252 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10253 let newest_selection_id = this.selections.newest_anchor().id;
10254 this.selections
10255 .all::<OffsetUtf16>(cx)
10256 .iter()
10257 .zip(ranges_to_replace.iter())
10258 .find_map(|(selection, range)| {
10259 if selection.id == newest_selection_id {
10260 Some(
10261 (range.start.0 as isize - selection.head().0 as isize)
10262 ..(range.end.0 as isize - selection.head().0 as isize),
10263 )
10264 } else {
10265 None
10266 }
10267 })
10268 });
10269
10270 cx.emit(EditorEvent::InputHandled {
10271 utf16_range_to_replace: range_to_replace,
10272 text: text.into(),
10273 });
10274
10275 if let Some(ranges) = ranges_to_replace {
10276 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10277 }
10278
10279 let marked_ranges = {
10280 let snapshot = this.buffer.read(cx).read(cx);
10281 this.selections
10282 .disjoint_anchors()
10283 .iter()
10284 .map(|selection| {
10285 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10286 })
10287 .collect::<Vec<_>>()
10288 };
10289
10290 if text.is_empty() {
10291 this.unmark_text(cx);
10292 } else {
10293 this.highlight_text::<InputComposition>(
10294 marked_ranges.clone(),
10295 HighlightStyle {
10296 underline: Some(UnderlineStyle {
10297 thickness: px(1.),
10298 color: None,
10299 wavy: false,
10300 }),
10301 ..Default::default()
10302 },
10303 cx,
10304 );
10305 }
10306
10307 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10308 let use_autoclose = this.use_autoclose;
10309 this.set_use_autoclose(false);
10310 this.handle_input(text, cx);
10311 this.set_use_autoclose(use_autoclose);
10312
10313 if let Some(new_selected_range) = new_selected_range_utf16 {
10314 let snapshot = this.buffer.read(cx).read(cx);
10315 let new_selected_ranges = marked_ranges
10316 .into_iter()
10317 .map(|marked_range| {
10318 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10319 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10320 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10321 snapshot.clip_offset_utf16(new_start, Bias::Left)
10322 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10323 })
10324 .collect::<Vec<_>>();
10325
10326 drop(snapshot);
10327 this.change_selections(None, cx, |selections| {
10328 selections.select_ranges(new_selected_ranges)
10329 });
10330 }
10331 });
10332
10333 self.ime_transaction = self.ime_transaction.or(transaction);
10334 if let Some(transaction) = self.ime_transaction {
10335 self.buffer.update(cx, |buffer, cx| {
10336 buffer.group_until_transaction(transaction, cx);
10337 });
10338 }
10339
10340 if self.text_highlights::<InputComposition>(cx).is_none() {
10341 self.ime_transaction.take();
10342 }
10343 }
10344
10345 fn bounds_for_range(
10346 &mut self,
10347 range_utf16: Range<usize>,
10348 element_bounds: gpui::Bounds<Pixels>,
10349 cx: &mut ViewContext<Self>,
10350 ) -> Option<gpui::Bounds<Pixels>> {
10351 let text_layout_details = self.text_layout_details(cx);
10352 let style = &text_layout_details.editor_style;
10353 let font_id = cx.text_system().resolve_font(&style.text.font());
10354 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10355 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10356 let em_width = cx
10357 .text_system()
10358 .typographic_bounds(font_id, font_size, 'm')
10359 .unwrap()
10360 .size
10361 .width;
10362
10363 let snapshot = self.snapshot(cx);
10364 let scroll_position = snapshot.scroll_position();
10365 let scroll_left = scroll_position.x * em_width;
10366
10367 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10368 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10369 + self.gutter_width;
10370 let y = line_height * (start.row() as f32 - scroll_position.y);
10371
10372 Some(Bounds {
10373 origin: element_bounds.origin + point(x, y),
10374 size: size(em_width, line_height),
10375 })
10376 }
10377}
10378
10379trait SelectionExt {
10380 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10381 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10382 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10383 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10384 -> Range<u32>;
10385}
10386
10387impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10388 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10389 let start = self.start.to_point(buffer);
10390 let end = self.end.to_point(buffer);
10391 if self.reversed {
10392 end..start
10393 } else {
10394 start..end
10395 }
10396 }
10397
10398 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10399 let start = self.start.to_offset(buffer);
10400 let end = self.end.to_offset(buffer);
10401 if self.reversed {
10402 end..start
10403 } else {
10404 start..end
10405 }
10406 }
10407
10408 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10409 let start = self
10410 .start
10411 .to_point(&map.buffer_snapshot)
10412 .to_display_point(map);
10413 let end = self
10414 .end
10415 .to_point(&map.buffer_snapshot)
10416 .to_display_point(map);
10417 if self.reversed {
10418 end..start
10419 } else {
10420 start..end
10421 }
10422 }
10423
10424 fn spanned_rows(
10425 &self,
10426 include_end_if_at_line_start: bool,
10427 map: &DisplaySnapshot,
10428 ) -> Range<u32> {
10429 let start = self.start.to_point(&map.buffer_snapshot);
10430 let mut end = self.end.to_point(&map.buffer_snapshot);
10431 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10432 end.row -= 1;
10433 }
10434
10435 let buffer_start = map.prev_line_boundary(start).0;
10436 let buffer_end = map.next_line_boundary(end).0;
10437 buffer_start.row..buffer_end.row + 1
10438 }
10439}
10440
10441impl<T: InvalidationRegion> InvalidationStack<T> {
10442 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10443 where
10444 S: Clone + ToOffset,
10445 {
10446 while let Some(region) = self.last() {
10447 let all_selections_inside_invalidation_ranges =
10448 if selections.len() == region.ranges().len() {
10449 selections
10450 .iter()
10451 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10452 .all(|(selection, invalidation_range)| {
10453 let head = selection.head().to_offset(buffer);
10454 invalidation_range.start <= head && invalidation_range.end >= head
10455 })
10456 } else {
10457 false
10458 };
10459
10460 if all_selections_inside_invalidation_ranges {
10461 break;
10462 } else {
10463 self.pop();
10464 }
10465 }
10466 }
10467}
10468
10469impl<T> Default for InvalidationStack<T> {
10470 fn default() -> Self {
10471 Self(Default::default())
10472 }
10473}
10474
10475impl<T> Deref for InvalidationStack<T> {
10476 type Target = Vec<T>;
10477
10478 fn deref(&self) -> &Self::Target {
10479 &self.0
10480 }
10481}
10482
10483impl<T> DerefMut for InvalidationStack<T> {
10484 fn deref_mut(&mut self) -> &mut Self::Target {
10485 &mut self.0
10486 }
10487}
10488
10489impl InvalidationRegion for SnippetState {
10490 fn ranges(&self) -> &[Range<Anchor>] {
10491 &self.ranges[self.active_index]
10492 }
10493}
10494
10495pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10496 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10497
10498 Arc::new(move |cx: &mut BlockContext| {
10499 let group_id: SharedString = cx.block_id.to_string().into();
10500
10501 let mut text_style = cx.text_style().clone();
10502 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10503
10504 let multi_line_diagnostic = diagnostic.message.contains('\n');
10505
10506 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10507 if multi_line_diagnostic {
10508 v_flex()
10509 } else {
10510 h_flex()
10511 }
10512 .children(diagnostic.is_primary.then(|| {
10513 IconButton::new(("close-block", block_id), IconName::XCircle)
10514 .icon_color(Color::Muted)
10515 .size(ButtonSize::Compact)
10516 .style(ButtonStyle::Transparent)
10517 .visible_on_hover(group_id.clone())
10518 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10519 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10520 }))
10521 .child(
10522 IconButton::new(("copy-block", block_id), IconName::Copy)
10523 .icon_color(Color::Muted)
10524 .size(ButtonSize::Compact)
10525 .style(ButtonStyle::Transparent)
10526 .visible_on_hover(group_id.clone())
10527 .on_click({
10528 let message = diagnostic.message.clone();
10529 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10530 })
10531 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10532 )
10533 };
10534
10535 let icon_size = buttons(&diagnostic, cx.block_id)
10536 .into_any_element()
10537 .measure(AvailableSpace::min_size(), cx);
10538
10539 h_flex()
10540 .id(cx.block_id)
10541 .group(group_id.clone())
10542 .relative()
10543 .size_full()
10544 .pl(cx.gutter_dimensions.width)
10545 .w(cx.max_width + cx.gutter_dimensions.width)
10546 .child(
10547 div()
10548 .flex()
10549 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
10550 .flex_shrink(),
10551 )
10552 .child(buttons(&diagnostic, cx.block_id))
10553 .child(div().flex().flex_shrink_0().child(
10554 StyledText::new(text_without_backticks.clone()).with_highlights(
10555 &text_style,
10556 code_ranges.iter().map(|range| {
10557 (
10558 range.clone(),
10559 HighlightStyle {
10560 font_weight: Some(FontWeight::BOLD),
10561 ..Default::default()
10562 },
10563 )
10564 }),
10565 ),
10566 ))
10567 .into_any_element()
10568 })
10569}
10570
10571pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10572 let mut text_without_backticks = String::new();
10573 let mut code_ranges = Vec::new();
10574
10575 if let Some(source) = &diagnostic.source {
10576 text_without_backticks.push_str(&source);
10577 code_ranges.push(0..source.len());
10578 text_without_backticks.push_str(": ");
10579 }
10580
10581 let mut prev_offset = 0;
10582 let mut in_code_block = false;
10583 for (ix, _) in diagnostic
10584 .message
10585 .match_indices('`')
10586 .chain([(diagnostic.message.len(), "")])
10587 {
10588 let prev_len = text_without_backticks.len();
10589 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10590 prev_offset = ix + 1;
10591 if in_code_block {
10592 code_ranges.push(prev_len..text_without_backticks.len());
10593 in_code_block = false;
10594 } else {
10595 in_code_block = true;
10596 }
10597 }
10598
10599 (text_without_backticks.into(), code_ranges)
10600}
10601
10602fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10603 match (severity, valid) {
10604 (DiagnosticSeverity::ERROR, true) => colors.error,
10605 (DiagnosticSeverity::ERROR, false) => colors.error,
10606 (DiagnosticSeverity::WARNING, true) => colors.warning,
10607 (DiagnosticSeverity::WARNING, false) => colors.warning,
10608 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10609 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10610 (DiagnosticSeverity::HINT, true) => colors.info,
10611 (DiagnosticSeverity::HINT, false) => colors.info,
10612 _ => colors.ignored,
10613 }
10614}
10615
10616pub fn styled_runs_for_code_label<'a>(
10617 label: &'a CodeLabel,
10618 syntax_theme: &'a theme::SyntaxTheme,
10619) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10620 let fade_out = HighlightStyle {
10621 fade_out: Some(0.35),
10622 ..Default::default()
10623 };
10624
10625 let mut prev_end = label.filter_range.end;
10626 label
10627 .runs
10628 .iter()
10629 .enumerate()
10630 .flat_map(move |(ix, (range, highlight_id))| {
10631 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10632 style
10633 } else {
10634 return Default::default();
10635 };
10636 let mut muted_style = style;
10637 muted_style.highlight(fade_out);
10638
10639 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10640 if range.start >= label.filter_range.end {
10641 if range.start > prev_end {
10642 runs.push((prev_end..range.start, fade_out));
10643 }
10644 runs.push((range.clone(), muted_style));
10645 } else if range.end <= label.filter_range.end {
10646 runs.push((range.clone(), style));
10647 } else {
10648 runs.push((range.start..label.filter_range.end, style));
10649 runs.push((label.filter_range.end..range.end, muted_style));
10650 }
10651 prev_end = cmp::max(prev_end, range.end);
10652
10653 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10654 runs.push((prev_end..label.text.len(), fade_out));
10655 }
10656
10657 runs
10658 })
10659}
10660
10661pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10662 let mut prev_index = 0;
10663 let mut prev_codepoint: Option<char> = None;
10664 text.char_indices()
10665 .chain([(text.len(), '\0')])
10666 .filter_map(move |(index, codepoint)| {
10667 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10668 let is_boundary = index == text.len()
10669 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10670 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10671 if is_boundary {
10672 let chunk = &text[prev_index..index];
10673 prev_index = index;
10674 Some(chunk)
10675 } else {
10676 None
10677 }
10678 })
10679}
10680
10681trait RangeToAnchorExt {
10682 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10683}
10684
10685impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10686 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10687 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10688 }
10689}