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, upwards: bool, 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 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 duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5173 self.duplicate_line(true, cx);
5174 }
5175
5176 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5177 self.duplicate_line(false, cx);
5178 }
5179
5180 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5182 let buffer = self.buffer.read(cx).snapshot(cx);
5183
5184 let mut edits = Vec::new();
5185 let mut unfold_ranges = Vec::new();
5186 let mut refold_ranges = Vec::new();
5187
5188 let selections = self.selections.all::<Point>(cx);
5189 let mut selections = selections.iter().peekable();
5190 let mut contiguous_row_selections = Vec::new();
5191 let mut new_selections = Vec::new();
5192
5193 while let Some(selection) = selections.next() {
5194 // Find all the selections that span a contiguous row range
5195 let (start_row, end_row) = consume_contiguous_rows(
5196 &mut contiguous_row_selections,
5197 selection,
5198 &display_map,
5199 &mut selections,
5200 );
5201
5202 // Move the text spanned by the row range to be before the line preceding the row range
5203 if start_row > 0 {
5204 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5205 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5206 let insertion_point = display_map
5207 .prev_line_boundary(Point::new(start_row - 1, 0))
5208 .0;
5209
5210 // Don't move lines across excerpts
5211 if buffer
5212 .excerpt_boundaries_in_range((
5213 Bound::Excluded(insertion_point),
5214 Bound::Included(range_to_move.end),
5215 ))
5216 .next()
5217 .is_none()
5218 {
5219 let text = buffer
5220 .text_for_range(range_to_move.clone())
5221 .flat_map(|s| s.chars())
5222 .skip(1)
5223 .chain(['\n'])
5224 .collect::<String>();
5225
5226 edits.push((
5227 buffer.anchor_after(range_to_move.start)
5228 ..buffer.anchor_before(range_to_move.end),
5229 String::new(),
5230 ));
5231 let insertion_anchor = buffer.anchor_after(insertion_point);
5232 edits.push((insertion_anchor..insertion_anchor, text));
5233
5234 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5235
5236 // Move selections up
5237 new_selections.extend(contiguous_row_selections.drain(..).map(
5238 |mut selection| {
5239 selection.start.row -= row_delta;
5240 selection.end.row -= row_delta;
5241 selection
5242 },
5243 ));
5244
5245 // Move folds up
5246 unfold_ranges.push(range_to_move.clone());
5247 for fold in display_map.folds_in_range(
5248 buffer.anchor_before(range_to_move.start)
5249 ..buffer.anchor_after(range_to_move.end),
5250 ) {
5251 let mut start = fold.range.start.to_point(&buffer);
5252 let mut end = fold.range.end.to_point(&buffer);
5253 start.row -= row_delta;
5254 end.row -= row_delta;
5255 refold_ranges.push(start..end);
5256 }
5257 }
5258 }
5259
5260 // If we didn't move line(s), preserve the existing selections
5261 new_selections.append(&mut contiguous_row_selections);
5262 }
5263
5264 self.transact(cx, |this, cx| {
5265 this.unfold_ranges(unfold_ranges, true, true, cx);
5266 this.buffer.update(cx, |buffer, cx| {
5267 for (range, text) in edits {
5268 buffer.edit([(range, text)], None, cx);
5269 }
5270 });
5271 this.fold_ranges(refold_ranges, true, cx);
5272 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5273 s.select(new_selections);
5274 })
5275 });
5276 }
5277
5278 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5279 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5280 let buffer = self.buffer.read(cx).snapshot(cx);
5281
5282 let mut edits = Vec::new();
5283 let mut unfold_ranges = Vec::new();
5284 let mut refold_ranges = Vec::new();
5285
5286 let selections = self.selections.all::<Point>(cx);
5287 let mut selections = selections.iter().peekable();
5288 let mut contiguous_row_selections = Vec::new();
5289 let mut new_selections = Vec::new();
5290
5291 while let Some(selection) = selections.next() {
5292 // Find all the selections that span a contiguous row range
5293 let (start_row, end_row) = consume_contiguous_rows(
5294 &mut contiguous_row_selections,
5295 selection,
5296 &display_map,
5297 &mut selections,
5298 );
5299
5300 // Move the text spanned by the row range to be after the last line of the row range
5301 if end_row <= buffer.max_point().row {
5302 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5303 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5304
5305 // Don't move lines across excerpt boundaries
5306 if buffer
5307 .excerpt_boundaries_in_range((
5308 Bound::Excluded(range_to_move.start),
5309 Bound::Included(insertion_point),
5310 ))
5311 .next()
5312 .is_none()
5313 {
5314 let mut text = String::from("\n");
5315 text.extend(buffer.text_for_range(range_to_move.clone()));
5316 text.pop(); // Drop trailing newline
5317 edits.push((
5318 buffer.anchor_after(range_to_move.start)
5319 ..buffer.anchor_before(range_to_move.end),
5320 String::new(),
5321 ));
5322 let insertion_anchor = buffer.anchor_after(insertion_point);
5323 edits.push((insertion_anchor..insertion_anchor, text));
5324
5325 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5326
5327 // Move selections down
5328 new_selections.extend(contiguous_row_selections.drain(..).map(
5329 |mut selection| {
5330 selection.start.row += row_delta;
5331 selection.end.row += row_delta;
5332 selection
5333 },
5334 ));
5335
5336 // Move folds down
5337 unfold_ranges.push(range_to_move.clone());
5338 for fold in display_map.folds_in_range(
5339 buffer.anchor_before(range_to_move.start)
5340 ..buffer.anchor_after(range_to_move.end),
5341 ) {
5342 let mut start = fold.range.start.to_point(&buffer);
5343 let mut end = fold.range.end.to_point(&buffer);
5344 start.row += row_delta;
5345 end.row += row_delta;
5346 refold_ranges.push(start..end);
5347 }
5348 }
5349 }
5350
5351 // If we didn't move line(s), preserve the existing selections
5352 new_selections.append(&mut contiguous_row_selections);
5353 }
5354
5355 self.transact(cx, |this, cx| {
5356 this.unfold_ranges(unfold_ranges, true, true, cx);
5357 this.buffer.update(cx, |buffer, cx| {
5358 for (range, text) in edits {
5359 buffer.edit([(range, text)], None, cx);
5360 }
5361 });
5362 this.fold_ranges(refold_ranges, true, cx);
5363 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5364 });
5365 }
5366
5367 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5368 let text_layout_details = &self.text_layout_details(cx);
5369 self.transact(cx, |this, cx| {
5370 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5371 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5372 let line_mode = s.line_mode;
5373 s.move_with(|display_map, selection| {
5374 if !selection.is_empty() || line_mode {
5375 return;
5376 }
5377
5378 let mut head = selection.head();
5379 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5380 if head.column() == display_map.line_len(head.row()) {
5381 transpose_offset = display_map
5382 .buffer_snapshot
5383 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5384 }
5385
5386 if transpose_offset == 0 {
5387 return;
5388 }
5389
5390 *head.column_mut() += 1;
5391 head = display_map.clip_point(head, Bias::Right);
5392 let goal = SelectionGoal::HorizontalPosition(
5393 display_map
5394 .x_for_display_point(head, &text_layout_details)
5395 .into(),
5396 );
5397 selection.collapse_to(head, goal);
5398
5399 let transpose_start = display_map
5400 .buffer_snapshot
5401 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5402 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5403 let transpose_end = display_map
5404 .buffer_snapshot
5405 .clip_offset(transpose_offset + 1, Bias::Right);
5406 if let Some(ch) =
5407 display_map.buffer_snapshot.chars_at(transpose_start).next()
5408 {
5409 edits.push((transpose_start..transpose_offset, String::new()));
5410 edits.push((transpose_end..transpose_end, ch.to_string()));
5411 }
5412 }
5413 });
5414 edits
5415 });
5416 this.buffer
5417 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5418 let selections = this.selections.all::<usize>(cx);
5419 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5420 s.select(selections);
5421 });
5422 });
5423 }
5424
5425 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5426 let mut text = String::new();
5427 let buffer = self.buffer.read(cx).snapshot(cx);
5428 let mut selections = self.selections.all::<Point>(cx);
5429 let mut clipboard_selections = Vec::with_capacity(selections.len());
5430 {
5431 let max_point = buffer.max_point();
5432 let mut is_first = true;
5433 for selection in &mut selections {
5434 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5435 if is_entire_line {
5436 selection.start = Point::new(selection.start.row, 0);
5437 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5438 selection.goal = SelectionGoal::None;
5439 }
5440 if is_first {
5441 is_first = false;
5442 } else {
5443 text += "\n";
5444 }
5445 let mut len = 0;
5446 for chunk in buffer.text_for_range(selection.start..selection.end) {
5447 text.push_str(chunk);
5448 len += chunk.len();
5449 }
5450 clipboard_selections.push(ClipboardSelection {
5451 len,
5452 is_entire_line,
5453 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5454 });
5455 }
5456 }
5457
5458 self.transact(cx, |this, cx| {
5459 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5460 s.select(selections);
5461 });
5462 this.insert("", cx);
5463 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5464 });
5465 }
5466
5467 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5468 let selections = self.selections.all::<Point>(cx);
5469 let buffer = self.buffer.read(cx).read(cx);
5470 let mut text = String::new();
5471
5472 let mut clipboard_selections = Vec::with_capacity(selections.len());
5473 {
5474 let max_point = buffer.max_point();
5475 let mut is_first = true;
5476 for selection in selections.iter() {
5477 let mut start = selection.start;
5478 let mut end = selection.end;
5479 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5480 if is_entire_line {
5481 start = Point::new(start.row, 0);
5482 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5483 }
5484 if is_first {
5485 is_first = false;
5486 } else {
5487 text += "\n";
5488 }
5489 let mut len = 0;
5490 for chunk in buffer.text_for_range(start..end) {
5491 text.push_str(chunk);
5492 len += chunk.len();
5493 }
5494 clipboard_selections.push(ClipboardSelection {
5495 len,
5496 is_entire_line,
5497 first_line_indent: buffer.indent_size_for_line(start.row).len,
5498 });
5499 }
5500 }
5501
5502 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5503 }
5504
5505 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5506 if self.read_only(cx) {
5507 return;
5508 }
5509
5510 self.transact(cx, |this, cx| {
5511 if let Some(item) = cx.read_from_clipboard() {
5512 let clipboard_text = Cow::Borrowed(item.text());
5513 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5514 let old_selections = this.selections.all::<usize>(cx);
5515 let all_selections_were_entire_line =
5516 clipboard_selections.iter().all(|s| s.is_entire_line);
5517 let first_selection_indent_column =
5518 clipboard_selections.first().map(|s| s.first_line_indent);
5519 if clipboard_selections.len() != old_selections.len() {
5520 clipboard_selections.drain(..);
5521 }
5522
5523 this.buffer.update(cx, |buffer, cx| {
5524 let snapshot = buffer.read(cx);
5525 let mut start_offset = 0;
5526 let mut edits = Vec::new();
5527 let mut original_indent_columns = Vec::new();
5528 let line_mode = this.selections.line_mode;
5529 for (ix, selection) in old_selections.iter().enumerate() {
5530 let to_insert;
5531 let entire_line;
5532 let original_indent_column;
5533 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5534 let end_offset = start_offset + clipboard_selection.len;
5535 to_insert = &clipboard_text[start_offset..end_offset];
5536 entire_line = clipboard_selection.is_entire_line;
5537 start_offset = end_offset + 1;
5538 original_indent_column =
5539 Some(clipboard_selection.first_line_indent);
5540 } else {
5541 to_insert = clipboard_text.as_str();
5542 entire_line = all_selections_were_entire_line;
5543 original_indent_column = first_selection_indent_column
5544 }
5545
5546 // If the corresponding selection was empty when this slice of the
5547 // clipboard text was written, then the entire line containing the
5548 // selection was copied. If this selection is also currently empty,
5549 // then paste the line before the current line of the buffer.
5550 let range = if selection.is_empty() && !line_mode && entire_line {
5551 let column = selection.start.to_point(&snapshot).column as usize;
5552 let line_start = selection.start - column;
5553 line_start..line_start
5554 } else {
5555 selection.range()
5556 };
5557
5558 edits.push((range, to_insert));
5559 original_indent_columns.extend(original_indent_column);
5560 }
5561 drop(snapshot);
5562
5563 buffer.edit(
5564 edits,
5565 Some(AutoindentMode::Block {
5566 original_indent_columns,
5567 }),
5568 cx,
5569 );
5570 });
5571
5572 let selections = this.selections.all::<usize>(cx);
5573 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5574 } else {
5575 this.insert(&clipboard_text, cx);
5576 }
5577 }
5578 });
5579 }
5580
5581 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5582 if self.read_only(cx) {
5583 return;
5584 }
5585
5586 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5587 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5588 self.change_selections(None, cx, |s| {
5589 s.select_anchors(selections.to_vec());
5590 });
5591 }
5592 self.request_autoscroll(Autoscroll::fit(), cx);
5593 self.unmark_text(cx);
5594 self.refresh_inline_completion(true, cx);
5595 cx.emit(EditorEvent::Edited);
5596 cx.emit(EditorEvent::TransactionUndone {
5597 transaction_id: tx_id,
5598 });
5599 }
5600 }
5601
5602 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5603 if self.read_only(cx) {
5604 return;
5605 }
5606
5607 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5608 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5609 {
5610 self.change_selections(None, cx, |s| {
5611 s.select_anchors(selections.to_vec());
5612 });
5613 }
5614 self.request_autoscroll(Autoscroll::fit(), cx);
5615 self.unmark_text(cx);
5616 self.refresh_inline_completion(true, cx);
5617 cx.emit(EditorEvent::Edited);
5618 }
5619 }
5620
5621 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5622 self.buffer
5623 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5624 }
5625
5626 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5627 self.buffer
5628 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5629 }
5630
5631 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5632 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5633 let line_mode = s.line_mode;
5634 s.move_with(|map, selection| {
5635 let cursor = if selection.is_empty() && !line_mode {
5636 movement::left(map, selection.start)
5637 } else {
5638 selection.start
5639 };
5640 selection.collapse_to(cursor, SelectionGoal::None);
5641 });
5642 })
5643 }
5644
5645 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5647 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5648 })
5649 }
5650
5651 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5652 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5653 let line_mode = s.line_mode;
5654 s.move_with(|map, selection| {
5655 let cursor = if selection.is_empty() && !line_mode {
5656 movement::right(map, selection.end)
5657 } else {
5658 selection.end
5659 };
5660 selection.collapse_to(cursor, SelectionGoal::None)
5661 });
5662 })
5663 }
5664
5665 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5667 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5668 })
5669 }
5670
5671 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5672 if self.take_rename(true, cx).is_some() {
5673 return;
5674 }
5675
5676 if matches!(self.mode, EditorMode::SingleLine) {
5677 cx.propagate();
5678 return;
5679 }
5680
5681 let text_layout_details = &self.text_layout_details(cx);
5682
5683 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5684 let line_mode = s.line_mode;
5685 s.move_with(|map, selection| {
5686 if !selection.is_empty() && !line_mode {
5687 selection.goal = SelectionGoal::None;
5688 }
5689 let (cursor, goal) = movement::up(
5690 map,
5691 selection.start,
5692 selection.goal,
5693 false,
5694 &text_layout_details,
5695 );
5696 selection.collapse_to(cursor, goal);
5697 });
5698 })
5699 }
5700
5701 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5702 if self.take_rename(true, cx).is_some() {
5703 return;
5704 }
5705
5706 if matches!(self.mode, EditorMode::SingleLine) {
5707 cx.propagate();
5708 return;
5709 }
5710
5711 let text_layout_details = &self.text_layout_details(cx);
5712
5713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 let line_mode = s.line_mode;
5715 s.move_with(|map, selection| {
5716 if !selection.is_empty() && !line_mode {
5717 selection.goal = SelectionGoal::None;
5718 }
5719 let (cursor, goal) = movement::up_by_rows(
5720 map,
5721 selection.start,
5722 action.lines,
5723 selection.goal,
5724 false,
5725 &text_layout_details,
5726 );
5727 selection.collapse_to(cursor, goal);
5728 });
5729 })
5730 }
5731
5732 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5733 if self.take_rename(true, cx).is_some() {
5734 return;
5735 }
5736
5737 if matches!(self.mode, EditorMode::SingleLine) {
5738 cx.propagate();
5739 return;
5740 }
5741
5742 let text_layout_details = &self.text_layout_details(cx);
5743
5744 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5745 let line_mode = s.line_mode;
5746 s.move_with(|map, selection| {
5747 if !selection.is_empty() && !line_mode {
5748 selection.goal = SelectionGoal::None;
5749 }
5750 let (cursor, goal) = movement::down_by_rows(
5751 map,
5752 selection.start,
5753 action.lines,
5754 selection.goal,
5755 false,
5756 &text_layout_details,
5757 );
5758 selection.collapse_to(cursor, goal);
5759 });
5760 })
5761 }
5762
5763 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5764 let text_layout_details = &self.text_layout_details(cx);
5765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5766 s.move_heads_with(|map, head, goal| {
5767 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5768 })
5769 })
5770 }
5771
5772 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5773 let text_layout_details = &self.text_layout_details(cx);
5774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5775 s.move_heads_with(|map, head, goal| {
5776 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5777 })
5778 })
5779 }
5780
5781 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5782 if self.take_rename(true, cx).is_some() {
5783 return;
5784 }
5785
5786 if matches!(self.mode, EditorMode::SingleLine) {
5787 cx.propagate();
5788 return;
5789 }
5790
5791 let row_count = if let Some(row_count) = self.visible_line_count() {
5792 row_count as u32 - 1
5793 } else {
5794 return;
5795 };
5796
5797 let autoscroll = if action.center_cursor {
5798 Autoscroll::center()
5799 } else {
5800 Autoscroll::fit()
5801 };
5802
5803 let text_layout_details = &self.text_layout_details(cx);
5804
5805 self.change_selections(Some(autoscroll), cx, |s| {
5806 let line_mode = s.line_mode;
5807 s.move_with(|map, selection| {
5808 if !selection.is_empty() && !line_mode {
5809 selection.goal = SelectionGoal::None;
5810 }
5811 let (cursor, goal) = movement::up_by_rows(
5812 map,
5813 selection.end,
5814 row_count,
5815 selection.goal,
5816 false,
5817 &text_layout_details,
5818 );
5819 selection.collapse_to(cursor, goal);
5820 });
5821 });
5822 }
5823
5824 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5825 let text_layout_details = &self.text_layout_details(cx);
5826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5827 s.move_heads_with(|map, head, goal| {
5828 movement::up(map, head, goal, false, &text_layout_details)
5829 })
5830 })
5831 }
5832
5833 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5834 self.take_rename(true, cx);
5835
5836 if self.mode == EditorMode::SingleLine {
5837 cx.propagate();
5838 return;
5839 }
5840
5841 let text_layout_details = &self.text_layout_details(cx);
5842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5843 let line_mode = s.line_mode;
5844 s.move_with(|map, selection| {
5845 if !selection.is_empty() && !line_mode {
5846 selection.goal = SelectionGoal::None;
5847 }
5848 let (cursor, goal) = movement::down(
5849 map,
5850 selection.end,
5851 selection.goal,
5852 false,
5853 &text_layout_details,
5854 );
5855 selection.collapse_to(cursor, goal);
5856 });
5857 });
5858 }
5859
5860 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5861 if self.take_rename(true, cx).is_some() {
5862 return;
5863 }
5864
5865 if self
5866 .context_menu
5867 .write()
5868 .as_mut()
5869 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5870 .unwrap_or(false)
5871 {
5872 return;
5873 }
5874
5875 if matches!(self.mode, EditorMode::SingleLine) {
5876 cx.propagate();
5877 return;
5878 }
5879
5880 let row_count = if let Some(row_count) = self.visible_line_count() {
5881 row_count as u32 - 1
5882 } else {
5883 return;
5884 };
5885
5886 let autoscroll = if action.center_cursor {
5887 Autoscroll::center()
5888 } else {
5889 Autoscroll::fit()
5890 };
5891
5892 let text_layout_details = &self.text_layout_details(cx);
5893 self.change_selections(Some(autoscroll), cx, |s| {
5894 let line_mode = s.line_mode;
5895 s.move_with(|map, selection| {
5896 if !selection.is_empty() && !line_mode {
5897 selection.goal = SelectionGoal::None;
5898 }
5899 let (cursor, goal) = movement::down_by_rows(
5900 map,
5901 selection.end,
5902 row_count,
5903 selection.goal,
5904 false,
5905 &text_layout_details,
5906 );
5907 selection.collapse_to(cursor, goal);
5908 });
5909 });
5910 }
5911
5912 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5913 let text_layout_details = &self.text_layout_details(cx);
5914 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5915 s.move_heads_with(|map, head, goal| {
5916 movement::down(map, head, goal, false, &text_layout_details)
5917 })
5918 });
5919 }
5920
5921 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5922 if let Some(context_menu) = self.context_menu.write().as_mut() {
5923 context_menu.select_first(self.project.as_ref(), cx);
5924 }
5925 }
5926
5927 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5928 if let Some(context_menu) = self.context_menu.write().as_mut() {
5929 context_menu.select_prev(self.project.as_ref(), cx);
5930 }
5931 }
5932
5933 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5934 if let Some(context_menu) = self.context_menu.write().as_mut() {
5935 context_menu.select_next(self.project.as_ref(), cx);
5936 }
5937 }
5938
5939 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5940 if let Some(context_menu) = self.context_menu.write().as_mut() {
5941 context_menu.select_last(self.project.as_ref(), cx);
5942 }
5943 }
5944
5945 pub fn move_to_previous_word_start(
5946 &mut self,
5947 _: &MoveToPreviousWordStart,
5948 cx: &mut ViewContext<Self>,
5949 ) {
5950 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5951 s.move_cursors_with(|map, head, _| {
5952 (
5953 movement::previous_word_start(map, head),
5954 SelectionGoal::None,
5955 )
5956 });
5957 })
5958 }
5959
5960 pub fn move_to_previous_subword_start(
5961 &mut self,
5962 _: &MoveToPreviousSubwordStart,
5963 cx: &mut ViewContext<Self>,
5964 ) {
5965 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5966 s.move_cursors_with(|map, head, _| {
5967 (
5968 movement::previous_subword_start(map, head),
5969 SelectionGoal::None,
5970 )
5971 });
5972 })
5973 }
5974
5975 pub fn select_to_previous_word_start(
5976 &mut self,
5977 _: &SelectToPreviousWordStart,
5978 cx: &mut ViewContext<Self>,
5979 ) {
5980 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5981 s.move_heads_with(|map, head, _| {
5982 (
5983 movement::previous_word_start(map, head),
5984 SelectionGoal::None,
5985 )
5986 });
5987 })
5988 }
5989
5990 pub fn select_to_previous_subword_start(
5991 &mut self,
5992 _: &SelectToPreviousSubwordStart,
5993 cx: &mut ViewContext<Self>,
5994 ) {
5995 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5996 s.move_heads_with(|map, head, _| {
5997 (
5998 movement::previous_subword_start(map, head),
5999 SelectionGoal::None,
6000 )
6001 });
6002 })
6003 }
6004
6005 pub fn delete_to_previous_word_start(
6006 &mut self,
6007 _: &DeleteToPreviousWordStart,
6008 cx: &mut ViewContext<Self>,
6009 ) {
6010 self.transact(cx, |this, cx| {
6011 this.select_autoclose_pair(cx);
6012 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6013 let line_mode = s.line_mode;
6014 s.move_with(|map, selection| {
6015 if selection.is_empty() && !line_mode {
6016 let cursor = movement::previous_word_start(map, selection.head());
6017 selection.set_head(cursor, SelectionGoal::None);
6018 }
6019 });
6020 });
6021 this.insert("", cx);
6022 });
6023 }
6024
6025 pub fn delete_to_previous_subword_start(
6026 &mut self,
6027 _: &DeleteToPreviousSubwordStart,
6028 cx: &mut ViewContext<Self>,
6029 ) {
6030 self.transact(cx, |this, cx| {
6031 this.select_autoclose_pair(cx);
6032 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6033 let line_mode = s.line_mode;
6034 s.move_with(|map, selection| {
6035 if selection.is_empty() && !line_mode {
6036 let cursor = movement::previous_subword_start(map, selection.head());
6037 selection.set_head(cursor, SelectionGoal::None);
6038 }
6039 });
6040 });
6041 this.insert("", cx);
6042 });
6043 }
6044
6045 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6047 s.move_cursors_with(|map, head, _| {
6048 (movement::next_word_end(map, head), SelectionGoal::None)
6049 });
6050 })
6051 }
6052
6053 pub fn move_to_next_subword_end(
6054 &mut self,
6055 _: &MoveToNextSubwordEnd,
6056 cx: &mut ViewContext<Self>,
6057 ) {
6058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6059 s.move_cursors_with(|map, head, _| {
6060 (movement::next_subword_end(map, head), SelectionGoal::None)
6061 });
6062 })
6063 }
6064
6065 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6066 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6067 s.move_heads_with(|map, head, _| {
6068 (movement::next_word_end(map, head), SelectionGoal::None)
6069 });
6070 })
6071 }
6072
6073 pub fn select_to_next_subword_end(
6074 &mut self,
6075 _: &SelectToNextSubwordEnd,
6076 cx: &mut ViewContext<Self>,
6077 ) {
6078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6079 s.move_heads_with(|map, head, _| {
6080 (movement::next_subword_end(map, head), SelectionGoal::None)
6081 });
6082 })
6083 }
6084
6085 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6086 self.transact(cx, |this, cx| {
6087 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6088 let line_mode = s.line_mode;
6089 s.move_with(|map, selection| {
6090 if selection.is_empty() && !line_mode {
6091 let cursor = movement::next_word_end(map, selection.head());
6092 selection.set_head(cursor, SelectionGoal::None);
6093 }
6094 });
6095 });
6096 this.insert("", cx);
6097 });
6098 }
6099
6100 pub fn delete_to_next_subword_end(
6101 &mut self,
6102 _: &DeleteToNextSubwordEnd,
6103 cx: &mut ViewContext<Self>,
6104 ) {
6105 self.transact(cx, |this, cx| {
6106 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6107 s.move_with(|map, selection| {
6108 if selection.is_empty() {
6109 let cursor = movement::next_subword_end(map, selection.head());
6110 selection.set_head(cursor, SelectionGoal::None);
6111 }
6112 });
6113 });
6114 this.insert("", cx);
6115 });
6116 }
6117
6118 pub fn move_to_beginning_of_line(
6119 &mut self,
6120 _: &MoveToBeginningOfLine,
6121 cx: &mut ViewContext<Self>,
6122 ) {
6123 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6124 s.move_cursors_with(|map, head, _| {
6125 (
6126 movement::indented_line_beginning(map, head, true),
6127 SelectionGoal::None,
6128 )
6129 });
6130 })
6131 }
6132
6133 pub fn select_to_beginning_of_line(
6134 &mut self,
6135 action: &SelectToBeginningOfLine,
6136 cx: &mut ViewContext<Self>,
6137 ) {
6138 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6139 s.move_heads_with(|map, head, _| {
6140 (
6141 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6142 SelectionGoal::None,
6143 )
6144 });
6145 });
6146 }
6147
6148 pub fn delete_to_beginning_of_line(
6149 &mut self,
6150 _: &DeleteToBeginningOfLine,
6151 cx: &mut ViewContext<Self>,
6152 ) {
6153 self.transact(cx, |this, cx| {
6154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.move_with(|_, selection| {
6156 selection.reversed = true;
6157 });
6158 });
6159
6160 this.select_to_beginning_of_line(
6161 &SelectToBeginningOfLine {
6162 stop_at_soft_wraps: false,
6163 },
6164 cx,
6165 );
6166 this.backspace(&Backspace, cx);
6167 });
6168 }
6169
6170 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6172 s.move_cursors_with(|map, head, _| {
6173 (movement::line_end(map, head, true), SelectionGoal::None)
6174 });
6175 })
6176 }
6177
6178 pub fn select_to_end_of_line(
6179 &mut self,
6180 action: &SelectToEndOfLine,
6181 cx: &mut ViewContext<Self>,
6182 ) {
6183 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6184 s.move_heads_with(|map, head, _| {
6185 (
6186 movement::line_end(map, head, action.stop_at_soft_wraps),
6187 SelectionGoal::None,
6188 )
6189 });
6190 })
6191 }
6192
6193 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6194 self.transact(cx, |this, cx| {
6195 this.select_to_end_of_line(
6196 &SelectToEndOfLine {
6197 stop_at_soft_wraps: false,
6198 },
6199 cx,
6200 );
6201 this.delete(&Delete, cx);
6202 });
6203 }
6204
6205 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6206 self.transact(cx, |this, cx| {
6207 this.select_to_end_of_line(
6208 &SelectToEndOfLine {
6209 stop_at_soft_wraps: false,
6210 },
6211 cx,
6212 );
6213 this.cut(&Cut, cx);
6214 });
6215 }
6216
6217 pub fn move_to_start_of_paragraph(
6218 &mut self,
6219 _: &MoveToStartOfParagraph,
6220 cx: &mut ViewContext<Self>,
6221 ) {
6222 if matches!(self.mode, EditorMode::SingleLine) {
6223 cx.propagate();
6224 return;
6225 }
6226
6227 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6228 s.move_with(|map, selection| {
6229 selection.collapse_to(
6230 movement::start_of_paragraph(map, selection.head(), 1),
6231 SelectionGoal::None,
6232 )
6233 });
6234 })
6235 }
6236
6237 pub fn move_to_end_of_paragraph(
6238 &mut self,
6239 _: &MoveToEndOfParagraph,
6240 cx: &mut ViewContext<Self>,
6241 ) {
6242 if matches!(self.mode, EditorMode::SingleLine) {
6243 cx.propagate();
6244 return;
6245 }
6246
6247 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6248 s.move_with(|map, selection| {
6249 selection.collapse_to(
6250 movement::end_of_paragraph(map, selection.head(), 1),
6251 SelectionGoal::None,
6252 )
6253 });
6254 })
6255 }
6256
6257 pub fn select_to_start_of_paragraph(
6258 &mut self,
6259 _: &SelectToStartOfParagraph,
6260 cx: &mut ViewContext<Self>,
6261 ) {
6262 if matches!(self.mode, EditorMode::SingleLine) {
6263 cx.propagate();
6264 return;
6265 }
6266
6267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6268 s.move_heads_with(|map, head, _| {
6269 (
6270 movement::start_of_paragraph(map, head, 1),
6271 SelectionGoal::None,
6272 )
6273 });
6274 })
6275 }
6276
6277 pub fn select_to_end_of_paragraph(
6278 &mut self,
6279 _: &SelectToEndOfParagraph,
6280 cx: &mut ViewContext<Self>,
6281 ) {
6282 if matches!(self.mode, EditorMode::SingleLine) {
6283 cx.propagate();
6284 return;
6285 }
6286
6287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6288 s.move_heads_with(|map, head, _| {
6289 (
6290 movement::end_of_paragraph(map, head, 1),
6291 SelectionGoal::None,
6292 )
6293 });
6294 })
6295 }
6296
6297 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6298 if matches!(self.mode, EditorMode::SingleLine) {
6299 cx.propagate();
6300 return;
6301 }
6302
6303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6304 s.select_ranges(vec![0..0]);
6305 });
6306 }
6307
6308 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6309 let mut selection = self.selections.last::<Point>(cx);
6310 selection.set_head(Point::zero(), SelectionGoal::None);
6311
6312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6313 s.select(vec![selection]);
6314 });
6315 }
6316
6317 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6318 if matches!(self.mode, EditorMode::SingleLine) {
6319 cx.propagate();
6320 return;
6321 }
6322
6323 let cursor = self.buffer.read(cx).read(cx).len();
6324 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6325 s.select_ranges(vec![cursor..cursor])
6326 });
6327 }
6328
6329 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6330 self.nav_history = nav_history;
6331 }
6332
6333 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6334 self.nav_history.as_ref()
6335 }
6336
6337 fn push_to_nav_history(
6338 &mut self,
6339 cursor_anchor: Anchor,
6340 new_position: Option<Point>,
6341 cx: &mut ViewContext<Self>,
6342 ) {
6343 if let Some(nav_history) = self.nav_history.as_mut() {
6344 let buffer = self.buffer.read(cx).read(cx);
6345 let cursor_position = cursor_anchor.to_point(&buffer);
6346 let scroll_state = self.scroll_manager.anchor();
6347 let scroll_top_row = scroll_state.top_row(&buffer);
6348 drop(buffer);
6349
6350 if let Some(new_position) = new_position {
6351 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6352 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6353 return;
6354 }
6355 }
6356
6357 nav_history.push(
6358 Some(NavigationData {
6359 cursor_anchor,
6360 cursor_position,
6361 scroll_anchor: scroll_state,
6362 scroll_top_row,
6363 }),
6364 cx,
6365 );
6366 }
6367 }
6368
6369 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6370 let buffer = self.buffer.read(cx).snapshot(cx);
6371 let mut selection = self.selections.first::<usize>(cx);
6372 selection.set_head(buffer.len(), SelectionGoal::None);
6373 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6374 s.select(vec![selection]);
6375 });
6376 }
6377
6378 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6379 let end = self.buffer.read(cx).read(cx).len();
6380 self.change_selections(None, cx, |s| {
6381 s.select_ranges(vec![0..end]);
6382 });
6383 }
6384
6385 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6387 let mut selections = self.selections.all::<Point>(cx);
6388 let max_point = display_map.buffer_snapshot.max_point();
6389 for selection in &mut selections {
6390 let rows = selection.spanned_rows(true, &display_map);
6391 selection.start = Point::new(rows.start, 0);
6392 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6393 selection.reversed = false;
6394 }
6395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6396 s.select(selections);
6397 });
6398 }
6399
6400 pub fn split_selection_into_lines(
6401 &mut self,
6402 _: &SplitSelectionIntoLines,
6403 cx: &mut ViewContext<Self>,
6404 ) {
6405 let mut to_unfold = Vec::new();
6406 let mut new_selection_ranges = Vec::new();
6407 {
6408 let selections = self.selections.all::<Point>(cx);
6409 let buffer = self.buffer.read(cx).read(cx);
6410 for selection in selections {
6411 for row in selection.start.row..selection.end.row {
6412 let cursor = Point::new(row, buffer.line_len(row));
6413 new_selection_ranges.push(cursor..cursor);
6414 }
6415 new_selection_ranges.push(selection.end..selection.end);
6416 to_unfold.push(selection.start..selection.end);
6417 }
6418 }
6419 self.unfold_ranges(to_unfold, true, true, cx);
6420 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6421 s.select_ranges(new_selection_ranges);
6422 });
6423 }
6424
6425 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6426 self.add_selection(true, cx);
6427 }
6428
6429 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6430 self.add_selection(false, cx);
6431 }
6432
6433 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6434 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6435 let mut selections = self.selections.all::<Point>(cx);
6436 let text_layout_details = self.text_layout_details(cx);
6437 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6438 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6439 let range = oldest_selection.display_range(&display_map).sorted();
6440
6441 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6442 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6443 let positions = start_x.min(end_x)..start_x.max(end_x);
6444
6445 selections.clear();
6446 let mut stack = Vec::new();
6447 for row in range.start.row()..=range.end.row() {
6448 if let Some(selection) = self.selections.build_columnar_selection(
6449 &display_map,
6450 row,
6451 &positions,
6452 oldest_selection.reversed,
6453 &text_layout_details,
6454 ) {
6455 stack.push(selection.id);
6456 selections.push(selection);
6457 }
6458 }
6459
6460 if above {
6461 stack.reverse();
6462 }
6463
6464 AddSelectionsState { above, stack }
6465 });
6466
6467 let last_added_selection = *state.stack.last().unwrap();
6468 let mut new_selections = Vec::new();
6469 if above == state.above {
6470 let end_row = if above {
6471 0
6472 } else {
6473 display_map.max_point().row()
6474 };
6475
6476 'outer: for selection in selections {
6477 if selection.id == last_added_selection {
6478 let range = selection.display_range(&display_map).sorted();
6479 debug_assert_eq!(range.start.row(), range.end.row());
6480 let mut row = range.start.row();
6481 let positions =
6482 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6483 px(start)..px(end)
6484 } else {
6485 let start_x =
6486 display_map.x_for_display_point(range.start, &text_layout_details);
6487 let end_x =
6488 display_map.x_for_display_point(range.end, &text_layout_details);
6489 start_x.min(end_x)..start_x.max(end_x)
6490 };
6491
6492 while row != end_row {
6493 if above {
6494 row -= 1;
6495 } else {
6496 row += 1;
6497 }
6498
6499 if let Some(new_selection) = self.selections.build_columnar_selection(
6500 &display_map,
6501 row,
6502 &positions,
6503 selection.reversed,
6504 &text_layout_details,
6505 ) {
6506 state.stack.push(new_selection.id);
6507 if above {
6508 new_selections.push(new_selection);
6509 new_selections.push(selection);
6510 } else {
6511 new_selections.push(selection);
6512 new_selections.push(new_selection);
6513 }
6514
6515 continue 'outer;
6516 }
6517 }
6518 }
6519
6520 new_selections.push(selection);
6521 }
6522 } else {
6523 new_selections = selections;
6524 new_selections.retain(|s| s.id != last_added_selection);
6525 state.stack.pop();
6526 }
6527
6528 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6529 s.select(new_selections);
6530 });
6531 if state.stack.len() > 1 {
6532 self.add_selections_state = Some(state);
6533 }
6534 }
6535
6536 pub fn select_next_match_internal(
6537 &mut self,
6538 display_map: &DisplaySnapshot,
6539 replace_newest: bool,
6540 autoscroll: Option<Autoscroll>,
6541 cx: &mut ViewContext<Self>,
6542 ) -> Result<()> {
6543 fn select_next_match_ranges(
6544 this: &mut Editor,
6545 range: Range<usize>,
6546 replace_newest: bool,
6547 auto_scroll: Option<Autoscroll>,
6548 cx: &mut ViewContext<Editor>,
6549 ) {
6550 this.unfold_ranges([range.clone()], false, true, cx);
6551 this.change_selections(auto_scroll, cx, |s| {
6552 if replace_newest {
6553 s.delete(s.newest_anchor().id);
6554 }
6555 s.insert_range(range.clone());
6556 });
6557 }
6558
6559 let buffer = &display_map.buffer_snapshot;
6560 let mut selections = self.selections.all::<usize>(cx);
6561 if let Some(mut select_next_state) = self.select_next_state.take() {
6562 let query = &select_next_state.query;
6563 if !select_next_state.done {
6564 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6565 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6566 let mut next_selected_range = None;
6567
6568 let bytes_after_last_selection =
6569 buffer.bytes_in_range(last_selection.end..buffer.len());
6570 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6571 let query_matches = query
6572 .stream_find_iter(bytes_after_last_selection)
6573 .map(|result| (last_selection.end, result))
6574 .chain(
6575 query
6576 .stream_find_iter(bytes_before_first_selection)
6577 .map(|result| (0, result)),
6578 );
6579
6580 for (start_offset, query_match) in query_matches {
6581 let query_match = query_match.unwrap(); // can only fail due to I/O
6582 let offset_range =
6583 start_offset + query_match.start()..start_offset + query_match.end();
6584 let display_range = offset_range.start.to_display_point(&display_map)
6585 ..offset_range.end.to_display_point(&display_map);
6586
6587 if !select_next_state.wordwise
6588 || (!movement::is_inside_word(&display_map, display_range.start)
6589 && !movement::is_inside_word(&display_map, display_range.end))
6590 {
6591 // TODO: This is n^2, because we might check all the selections
6592 if !selections
6593 .iter()
6594 .any(|selection| selection.range().overlaps(&offset_range))
6595 {
6596 next_selected_range = Some(offset_range);
6597 break;
6598 }
6599 }
6600 }
6601
6602 if let Some(next_selected_range) = next_selected_range {
6603 select_next_match_ranges(
6604 self,
6605 next_selected_range,
6606 replace_newest,
6607 autoscroll,
6608 cx,
6609 );
6610 } else {
6611 select_next_state.done = true;
6612 }
6613 }
6614
6615 self.select_next_state = Some(select_next_state);
6616 } else {
6617 let mut only_carets = true;
6618 let mut same_text_selected = true;
6619 let mut selected_text = None;
6620
6621 let mut selections_iter = selections.iter().peekable();
6622 while let Some(selection) = selections_iter.next() {
6623 if selection.start != selection.end {
6624 only_carets = false;
6625 }
6626
6627 if same_text_selected {
6628 if selected_text.is_none() {
6629 selected_text =
6630 Some(buffer.text_for_range(selection.range()).collect::<String>());
6631 }
6632
6633 if let Some(next_selection) = selections_iter.peek() {
6634 if next_selection.range().len() == selection.range().len() {
6635 let next_selected_text = buffer
6636 .text_for_range(next_selection.range())
6637 .collect::<String>();
6638 if Some(next_selected_text) != selected_text {
6639 same_text_selected = false;
6640 selected_text = None;
6641 }
6642 } else {
6643 same_text_selected = false;
6644 selected_text = None;
6645 }
6646 }
6647 }
6648 }
6649
6650 if only_carets {
6651 for selection in &mut selections {
6652 let word_range = movement::surrounding_word(
6653 &display_map,
6654 selection.start.to_display_point(&display_map),
6655 );
6656 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6657 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6658 selection.goal = SelectionGoal::None;
6659 selection.reversed = false;
6660 select_next_match_ranges(
6661 self,
6662 selection.start..selection.end,
6663 replace_newest,
6664 autoscroll,
6665 cx,
6666 );
6667 }
6668
6669 if selections.len() == 1 {
6670 let selection = selections
6671 .last()
6672 .expect("ensured that there's only one selection");
6673 let query = buffer
6674 .text_for_range(selection.start..selection.end)
6675 .collect::<String>();
6676 let is_empty = query.is_empty();
6677 let select_state = SelectNextState {
6678 query: AhoCorasick::new(&[query])?,
6679 wordwise: true,
6680 done: is_empty,
6681 };
6682 self.select_next_state = Some(select_state);
6683 } else {
6684 self.select_next_state = None;
6685 }
6686 } else if let Some(selected_text) = selected_text {
6687 self.select_next_state = Some(SelectNextState {
6688 query: AhoCorasick::new(&[selected_text])?,
6689 wordwise: false,
6690 done: false,
6691 });
6692 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6693 }
6694 }
6695 Ok(())
6696 }
6697
6698 pub fn select_all_matches(
6699 &mut self,
6700 _action: &SelectAllMatches,
6701 cx: &mut ViewContext<Self>,
6702 ) -> Result<()> {
6703 self.push_to_selection_history();
6704 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6705
6706 self.select_next_match_internal(&display_map, false, None, cx)?;
6707 let Some(select_next_state) = self.select_next_state.as_mut() else {
6708 return Ok(());
6709 };
6710 if select_next_state.done {
6711 return Ok(());
6712 }
6713
6714 let mut new_selections = self.selections.all::<usize>(cx);
6715
6716 let buffer = &display_map.buffer_snapshot;
6717 let query_matches = select_next_state
6718 .query
6719 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6720
6721 for query_match in query_matches {
6722 let query_match = query_match.unwrap(); // can only fail due to I/O
6723 let offset_range = query_match.start()..query_match.end();
6724 let display_range = offset_range.start.to_display_point(&display_map)
6725 ..offset_range.end.to_display_point(&display_map);
6726
6727 if !select_next_state.wordwise
6728 || (!movement::is_inside_word(&display_map, display_range.start)
6729 && !movement::is_inside_word(&display_map, display_range.end))
6730 {
6731 self.selections.change_with(cx, |selections| {
6732 new_selections.push(Selection {
6733 id: selections.new_selection_id(),
6734 start: offset_range.start,
6735 end: offset_range.end,
6736 reversed: false,
6737 goal: SelectionGoal::None,
6738 });
6739 });
6740 }
6741 }
6742
6743 new_selections.sort_by_key(|selection| selection.start);
6744 let mut ix = 0;
6745 while ix + 1 < new_selections.len() {
6746 let current_selection = &new_selections[ix];
6747 let next_selection = &new_selections[ix + 1];
6748 if current_selection.range().overlaps(&next_selection.range()) {
6749 if current_selection.id < next_selection.id {
6750 new_selections.remove(ix + 1);
6751 } else {
6752 new_selections.remove(ix);
6753 }
6754 } else {
6755 ix += 1;
6756 }
6757 }
6758
6759 select_next_state.done = true;
6760 self.unfold_ranges(
6761 new_selections.iter().map(|selection| selection.range()),
6762 false,
6763 false,
6764 cx,
6765 );
6766 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6767 selections.select(new_selections)
6768 });
6769
6770 Ok(())
6771 }
6772
6773 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6774 self.push_to_selection_history();
6775 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6776 self.select_next_match_internal(
6777 &display_map,
6778 action.replace_newest,
6779 Some(Autoscroll::newest()),
6780 cx,
6781 )?;
6782 Ok(())
6783 }
6784
6785 pub fn select_previous(
6786 &mut self,
6787 action: &SelectPrevious,
6788 cx: &mut ViewContext<Self>,
6789 ) -> Result<()> {
6790 self.push_to_selection_history();
6791 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6792 let buffer = &display_map.buffer_snapshot;
6793 let mut selections = self.selections.all::<usize>(cx);
6794 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6795 let query = &select_prev_state.query;
6796 if !select_prev_state.done {
6797 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6798 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6799 let mut next_selected_range = None;
6800 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6801 let bytes_before_last_selection =
6802 buffer.reversed_bytes_in_range(0..last_selection.start);
6803 let bytes_after_first_selection =
6804 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6805 let query_matches = query
6806 .stream_find_iter(bytes_before_last_selection)
6807 .map(|result| (last_selection.start, result))
6808 .chain(
6809 query
6810 .stream_find_iter(bytes_after_first_selection)
6811 .map(|result| (buffer.len(), result)),
6812 );
6813 for (end_offset, query_match) in query_matches {
6814 let query_match = query_match.unwrap(); // can only fail due to I/O
6815 let offset_range =
6816 end_offset - query_match.end()..end_offset - query_match.start();
6817 let display_range = offset_range.start.to_display_point(&display_map)
6818 ..offset_range.end.to_display_point(&display_map);
6819
6820 if !select_prev_state.wordwise
6821 || (!movement::is_inside_word(&display_map, display_range.start)
6822 && !movement::is_inside_word(&display_map, display_range.end))
6823 {
6824 next_selected_range = Some(offset_range);
6825 break;
6826 }
6827 }
6828
6829 if let Some(next_selected_range) = next_selected_range {
6830 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6831 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6832 if action.replace_newest {
6833 s.delete(s.newest_anchor().id);
6834 }
6835 s.insert_range(next_selected_range);
6836 });
6837 } else {
6838 select_prev_state.done = true;
6839 }
6840 }
6841
6842 self.select_prev_state = Some(select_prev_state);
6843 } else {
6844 let mut only_carets = true;
6845 let mut same_text_selected = true;
6846 let mut selected_text = None;
6847
6848 let mut selections_iter = selections.iter().peekable();
6849 while let Some(selection) = selections_iter.next() {
6850 if selection.start != selection.end {
6851 only_carets = false;
6852 }
6853
6854 if same_text_selected {
6855 if selected_text.is_none() {
6856 selected_text =
6857 Some(buffer.text_for_range(selection.range()).collect::<String>());
6858 }
6859
6860 if let Some(next_selection) = selections_iter.peek() {
6861 if next_selection.range().len() == selection.range().len() {
6862 let next_selected_text = buffer
6863 .text_for_range(next_selection.range())
6864 .collect::<String>();
6865 if Some(next_selected_text) != selected_text {
6866 same_text_selected = false;
6867 selected_text = None;
6868 }
6869 } else {
6870 same_text_selected = false;
6871 selected_text = None;
6872 }
6873 }
6874 }
6875 }
6876
6877 if only_carets {
6878 for selection in &mut selections {
6879 let word_range = movement::surrounding_word(
6880 &display_map,
6881 selection.start.to_display_point(&display_map),
6882 );
6883 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6884 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6885 selection.goal = SelectionGoal::None;
6886 selection.reversed = false;
6887 }
6888 if selections.len() == 1 {
6889 let selection = selections
6890 .last()
6891 .expect("ensured that there's only one selection");
6892 let query = buffer
6893 .text_for_range(selection.start..selection.end)
6894 .collect::<String>();
6895 let is_empty = query.is_empty();
6896 let select_state = SelectNextState {
6897 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6898 wordwise: true,
6899 done: is_empty,
6900 };
6901 self.select_prev_state = Some(select_state);
6902 } else {
6903 self.select_prev_state = None;
6904 }
6905
6906 self.unfold_ranges(
6907 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6908 false,
6909 true,
6910 cx,
6911 );
6912 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6913 s.select(selections);
6914 });
6915 } else if let Some(selected_text) = selected_text {
6916 self.select_prev_state = Some(SelectNextState {
6917 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6918 wordwise: false,
6919 done: false,
6920 });
6921 self.select_previous(action, cx)?;
6922 }
6923 }
6924 Ok(())
6925 }
6926
6927 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6928 let text_layout_details = &self.text_layout_details(cx);
6929 self.transact(cx, |this, cx| {
6930 let mut selections = this.selections.all::<Point>(cx);
6931 let mut edits = Vec::new();
6932 let mut selection_edit_ranges = Vec::new();
6933 let mut last_toggled_row = None;
6934 let snapshot = this.buffer.read(cx).read(cx);
6935 let empty_str: Arc<str> = "".into();
6936 let mut suffixes_inserted = Vec::new();
6937
6938 fn comment_prefix_range(
6939 snapshot: &MultiBufferSnapshot,
6940 row: u32,
6941 comment_prefix: &str,
6942 comment_prefix_whitespace: &str,
6943 ) -> Range<Point> {
6944 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6945
6946 let mut line_bytes = snapshot
6947 .bytes_in_range(start..snapshot.max_point())
6948 .flatten()
6949 .copied();
6950
6951 // If this line currently begins with the line comment prefix, then record
6952 // the range containing the prefix.
6953 if line_bytes
6954 .by_ref()
6955 .take(comment_prefix.len())
6956 .eq(comment_prefix.bytes())
6957 {
6958 // Include any whitespace that matches the comment prefix.
6959 let matching_whitespace_len = line_bytes
6960 .zip(comment_prefix_whitespace.bytes())
6961 .take_while(|(a, b)| a == b)
6962 .count() as u32;
6963 let end = Point::new(
6964 start.row,
6965 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6966 );
6967 start..end
6968 } else {
6969 start..start
6970 }
6971 }
6972
6973 fn comment_suffix_range(
6974 snapshot: &MultiBufferSnapshot,
6975 row: u32,
6976 comment_suffix: &str,
6977 comment_suffix_has_leading_space: bool,
6978 ) -> Range<Point> {
6979 let end = Point::new(row, snapshot.line_len(row));
6980 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6981
6982 let mut line_end_bytes = snapshot
6983 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6984 .flatten()
6985 .copied();
6986
6987 let leading_space_len = if suffix_start_column > 0
6988 && line_end_bytes.next() == Some(b' ')
6989 && comment_suffix_has_leading_space
6990 {
6991 1
6992 } else {
6993 0
6994 };
6995
6996 // If this line currently begins with the line comment prefix, then record
6997 // the range containing the prefix.
6998 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6999 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7000 start..end
7001 } else {
7002 end..end
7003 }
7004 }
7005
7006 // TODO: Handle selections that cross excerpts
7007 for selection in &mut selections {
7008 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7009 let language = if let Some(language) =
7010 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7011 {
7012 language
7013 } else {
7014 continue;
7015 };
7016
7017 selection_edit_ranges.clear();
7018
7019 // If multiple selections contain a given row, avoid processing that
7020 // row more than once.
7021 let mut start_row = selection.start.row;
7022 if last_toggled_row == Some(start_row) {
7023 start_row += 1;
7024 }
7025 let end_row =
7026 if selection.end.row > selection.start.row && selection.end.column == 0 {
7027 selection.end.row - 1
7028 } else {
7029 selection.end.row
7030 };
7031 last_toggled_row = Some(end_row);
7032
7033 if start_row > end_row {
7034 continue;
7035 }
7036
7037 // If the language has line comments, toggle those.
7038 if let Some(full_comment_prefix) = language
7039 .line_comment_prefixes()
7040 .and_then(|prefixes| prefixes.first())
7041 {
7042 // Split the comment prefix's trailing whitespace into a separate string,
7043 // as that portion won't be used for detecting if a line is a comment.
7044 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7045 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7046 let mut all_selection_lines_are_comments = true;
7047
7048 for row in start_row..=end_row {
7049 if start_row < end_row && snapshot.is_line_blank(row) {
7050 continue;
7051 }
7052
7053 let prefix_range = comment_prefix_range(
7054 snapshot.deref(),
7055 row,
7056 comment_prefix,
7057 comment_prefix_whitespace,
7058 );
7059 if prefix_range.is_empty() {
7060 all_selection_lines_are_comments = false;
7061 }
7062 selection_edit_ranges.push(prefix_range);
7063 }
7064
7065 if all_selection_lines_are_comments {
7066 edits.extend(
7067 selection_edit_ranges
7068 .iter()
7069 .cloned()
7070 .map(|range| (range, empty_str.clone())),
7071 );
7072 } else {
7073 let min_column = selection_edit_ranges
7074 .iter()
7075 .map(|r| r.start.column)
7076 .min()
7077 .unwrap_or(0);
7078 edits.extend(selection_edit_ranges.iter().map(|range| {
7079 let position = Point::new(range.start.row, min_column);
7080 (position..position, full_comment_prefix.clone())
7081 }));
7082 }
7083 } else if let Some((full_comment_prefix, comment_suffix)) =
7084 language.block_comment_delimiters()
7085 {
7086 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7087 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7088 let prefix_range = comment_prefix_range(
7089 snapshot.deref(),
7090 start_row,
7091 comment_prefix,
7092 comment_prefix_whitespace,
7093 );
7094 let suffix_range = comment_suffix_range(
7095 snapshot.deref(),
7096 end_row,
7097 comment_suffix.trim_start_matches(' '),
7098 comment_suffix.starts_with(' '),
7099 );
7100
7101 if prefix_range.is_empty() || suffix_range.is_empty() {
7102 edits.push((
7103 prefix_range.start..prefix_range.start,
7104 full_comment_prefix.clone(),
7105 ));
7106 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7107 suffixes_inserted.push((end_row, comment_suffix.len()));
7108 } else {
7109 edits.push((prefix_range, empty_str.clone()));
7110 edits.push((suffix_range, empty_str.clone()));
7111 }
7112 } else {
7113 continue;
7114 }
7115 }
7116
7117 drop(snapshot);
7118 this.buffer.update(cx, |buffer, cx| {
7119 buffer.edit(edits, None, cx);
7120 });
7121
7122 // Adjust selections so that they end before any comment suffixes that
7123 // were inserted.
7124 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7125 let mut selections = this.selections.all::<Point>(cx);
7126 let snapshot = this.buffer.read(cx).read(cx);
7127 for selection in &mut selections {
7128 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7129 match row.cmp(&selection.end.row) {
7130 Ordering::Less => {
7131 suffixes_inserted.next();
7132 continue;
7133 }
7134 Ordering::Greater => break,
7135 Ordering::Equal => {
7136 if selection.end.column == snapshot.line_len(row) {
7137 if selection.is_empty() {
7138 selection.start.column -= suffix_len as u32;
7139 }
7140 selection.end.column -= suffix_len as u32;
7141 }
7142 break;
7143 }
7144 }
7145 }
7146 }
7147
7148 drop(snapshot);
7149 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7150
7151 let selections = this.selections.all::<Point>(cx);
7152 let selections_on_single_row = selections.windows(2).all(|selections| {
7153 selections[0].start.row == selections[1].start.row
7154 && selections[0].end.row == selections[1].end.row
7155 && selections[0].start.row == selections[0].end.row
7156 });
7157 let selections_selecting = selections
7158 .iter()
7159 .any(|selection| selection.start != selection.end);
7160 let advance_downwards = action.advance_downwards
7161 && selections_on_single_row
7162 && !selections_selecting
7163 && this.mode != EditorMode::SingleLine;
7164
7165 if advance_downwards {
7166 let snapshot = this.buffer.read(cx).snapshot(cx);
7167
7168 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7169 s.move_cursors_with(|display_snapshot, display_point, _| {
7170 let mut point = display_point.to_point(display_snapshot);
7171 point.row += 1;
7172 point = snapshot.clip_point(point, Bias::Left);
7173 let display_point = point.to_display_point(display_snapshot);
7174 let goal = SelectionGoal::HorizontalPosition(
7175 display_snapshot
7176 .x_for_display_point(display_point, &text_layout_details)
7177 .into(),
7178 );
7179 (display_point, goal)
7180 })
7181 });
7182 }
7183 });
7184 }
7185
7186 pub fn select_larger_syntax_node(
7187 &mut self,
7188 _: &SelectLargerSyntaxNode,
7189 cx: &mut ViewContext<Self>,
7190 ) {
7191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7192 let buffer = self.buffer.read(cx).snapshot(cx);
7193 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7194
7195 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7196 let mut selected_larger_node = false;
7197 let new_selections = old_selections
7198 .iter()
7199 .map(|selection| {
7200 let old_range = selection.start..selection.end;
7201 let mut new_range = old_range.clone();
7202 while let Some(containing_range) =
7203 buffer.range_for_syntax_ancestor(new_range.clone())
7204 {
7205 new_range = containing_range;
7206 if !display_map.intersects_fold(new_range.start)
7207 && !display_map.intersects_fold(new_range.end)
7208 {
7209 break;
7210 }
7211 }
7212
7213 selected_larger_node |= new_range != old_range;
7214 Selection {
7215 id: selection.id,
7216 start: new_range.start,
7217 end: new_range.end,
7218 goal: SelectionGoal::None,
7219 reversed: selection.reversed,
7220 }
7221 })
7222 .collect::<Vec<_>>();
7223
7224 if selected_larger_node {
7225 stack.push(old_selections);
7226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7227 s.select(new_selections);
7228 });
7229 }
7230 self.select_larger_syntax_node_stack = stack;
7231 }
7232
7233 pub fn select_smaller_syntax_node(
7234 &mut self,
7235 _: &SelectSmallerSyntaxNode,
7236 cx: &mut ViewContext<Self>,
7237 ) {
7238 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7239 if let Some(selections) = stack.pop() {
7240 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7241 s.select(selections.to_vec());
7242 });
7243 }
7244 self.select_larger_syntax_node_stack = stack;
7245 }
7246
7247 pub fn move_to_enclosing_bracket(
7248 &mut self,
7249 _: &MoveToEnclosingBracket,
7250 cx: &mut ViewContext<Self>,
7251 ) {
7252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7253 s.move_offsets_with(|snapshot, selection| {
7254 let Some(enclosing_bracket_ranges) =
7255 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7256 else {
7257 return;
7258 };
7259
7260 let mut best_length = usize::MAX;
7261 let mut best_inside = false;
7262 let mut best_in_bracket_range = false;
7263 let mut best_destination = None;
7264 for (open, close) in enclosing_bracket_ranges {
7265 let close = close.to_inclusive();
7266 let length = close.end() - open.start;
7267 let inside = selection.start >= open.end && selection.end <= *close.start();
7268 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7269 || close.contains(&selection.head());
7270
7271 // If best is next to a bracket and current isn't, skip
7272 if !in_bracket_range && best_in_bracket_range {
7273 continue;
7274 }
7275
7276 // Prefer smaller lengths unless best is inside and current isn't
7277 if length > best_length && (best_inside || !inside) {
7278 continue;
7279 }
7280
7281 best_length = length;
7282 best_inside = inside;
7283 best_in_bracket_range = in_bracket_range;
7284 best_destination = Some(
7285 if close.contains(&selection.start) && close.contains(&selection.end) {
7286 if inside {
7287 open.end
7288 } else {
7289 open.start
7290 }
7291 } else {
7292 if inside {
7293 *close.start()
7294 } else {
7295 *close.end()
7296 }
7297 },
7298 );
7299 }
7300
7301 if let Some(destination) = best_destination {
7302 selection.collapse_to(destination, SelectionGoal::None);
7303 }
7304 })
7305 });
7306 }
7307
7308 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7309 self.end_selection(cx);
7310 self.selection_history.mode = SelectionHistoryMode::Undoing;
7311 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7312 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7313 self.select_next_state = entry.select_next_state;
7314 self.select_prev_state = entry.select_prev_state;
7315 self.add_selections_state = entry.add_selections_state;
7316 self.request_autoscroll(Autoscroll::newest(), cx);
7317 }
7318 self.selection_history.mode = SelectionHistoryMode::Normal;
7319 }
7320
7321 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7322 self.end_selection(cx);
7323 self.selection_history.mode = SelectionHistoryMode::Redoing;
7324 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7325 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7326 self.select_next_state = entry.select_next_state;
7327 self.select_prev_state = entry.select_prev_state;
7328 self.add_selections_state = entry.add_selections_state;
7329 self.request_autoscroll(Autoscroll::newest(), cx);
7330 }
7331 self.selection_history.mode = SelectionHistoryMode::Normal;
7332 }
7333
7334 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7335 self.go_to_diagnostic_impl(Direction::Next, cx)
7336 }
7337
7338 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7339 self.go_to_diagnostic_impl(Direction::Prev, cx)
7340 }
7341
7342 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7343 let buffer = self.buffer.read(cx).snapshot(cx);
7344 let selection = self.selections.newest::<usize>(cx);
7345
7346 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7347 if direction == Direction::Next {
7348 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7349 let (group_id, jump_to) = popover.activation_info();
7350 if self.activate_diagnostics(group_id, cx) {
7351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7352 let mut new_selection = s.newest_anchor().clone();
7353 new_selection.collapse_to(jump_to, SelectionGoal::None);
7354 s.select_anchors(vec![new_selection.clone()]);
7355 });
7356 }
7357 return;
7358 }
7359 }
7360
7361 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7362 active_diagnostics
7363 .primary_range
7364 .to_offset(&buffer)
7365 .to_inclusive()
7366 });
7367 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7368 if active_primary_range.contains(&selection.head()) {
7369 *active_primary_range.end()
7370 } else {
7371 selection.head()
7372 }
7373 } else {
7374 selection.head()
7375 };
7376
7377 loop {
7378 let mut diagnostics = if direction == Direction::Prev {
7379 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7380 } else {
7381 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7382 };
7383 let group = diagnostics.find_map(|entry| {
7384 if entry.diagnostic.is_primary
7385 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7386 && !entry.range.is_empty()
7387 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7388 && !entry.range.contains(&search_start)
7389 {
7390 Some((entry.range, entry.diagnostic.group_id))
7391 } else {
7392 None
7393 }
7394 });
7395
7396 if let Some((primary_range, group_id)) = group {
7397 if self.activate_diagnostics(group_id, cx) {
7398 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7399 s.select(vec![Selection {
7400 id: selection.id,
7401 start: primary_range.start,
7402 end: primary_range.start,
7403 reversed: false,
7404 goal: SelectionGoal::None,
7405 }]);
7406 });
7407 }
7408 break;
7409 } else {
7410 // Cycle around to the start of the buffer, potentially moving back to the start of
7411 // the currently active diagnostic.
7412 active_primary_range.take();
7413 if direction == Direction::Prev {
7414 if search_start == buffer.len() {
7415 break;
7416 } else {
7417 search_start = buffer.len();
7418 }
7419 } else if search_start == 0 {
7420 break;
7421 } else {
7422 search_start = 0;
7423 }
7424 }
7425 }
7426 }
7427
7428 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7429 let snapshot = self
7430 .display_map
7431 .update(cx, |display_map, cx| display_map.snapshot(cx));
7432 let selection = self.selections.newest::<Point>(cx);
7433
7434 if !self.seek_in_direction(
7435 &snapshot,
7436 selection.head(),
7437 false,
7438 snapshot
7439 .buffer_snapshot
7440 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7441 cx,
7442 ) {
7443 let wrapped_point = Point::zero();
7444 self.seek_in_direction(
7445 &snapshot,
7446 wrapped_point,
7447 true,
7448 snapshot
7449 .buffer_snapshot
7450 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7451 cx,
7452 );
7453 }
7454 }
7455
7456 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7457 let snapshot = self
7458 .display_map
7459 .update(cx, |display_map, cx| display_map.snapshot(cx));
7460 let selection = self.selections.newest::<Point>(cx);
7461
7462 if !self.seek_in_direction(
7463 &snapshot,
7464 selection.head(),
7465 false,
7466 snapshot
7467 .buffer_snapshot
7468 .git_diff_hunks_in_range_rev(0..selection.head().row),
7469 cx,
7470 ) {
7471 let wrapped_point = snapshot.buffer_snapshot.max_point();
7472 self.seek_in_direction(
7473 &snapshot,
7474 wrapped_point,
7475 true,
7476 snapshot
7477 .buffer_snapshot
7478 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7479 cx,
7480 );
7481 }
7482 }
7483
7484 fn seek_in_direction(
7485 &mut self,
7486 snapshot: &DisplaySnapshot,
7487 initial_point: Point,
7488 is_wrapped: bool,
7489 hunks: impl Iterator<Item = DiffHunk<u32>>,
7490 cx: &mut ViewContext<Editor>,
7491 ) -> bool {
7492 let display_point = initial_point.to_display_point(snapshot);
7493 let mut hunks = hunks
7494 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7495 .filter(|hunk| {
7496 if is_wrapped {
7497 true
7498 } else {
7499 !hunk.contains_display_row(display_point.row())
7500 }
7501 })
7502 .dedup();
7503
7504 if let Some(hunk) = hunks.next() {
7505 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7506 let row = hunk.start_display_row();
7507 let point = DisplayPoint::new(row, 0);
7508 s.select_display_ranges([point..point]);
7509 });
7510
7511 true
7512 } else {
7513 false
7514 }
7515 }
7516
7517 pub fn go_to_definition(
7518 &mut self,
7519 _: &GoToDefinition,
7520 cx: &mut ViewContext<Self>,
7521 ) -> Task<Result<bool>> {
7522 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7523 }
7524
7525 pub fn go_to_implementation(
7526 &mut self,
7527 _: &GoToImplementation,
7528 cx: &mut ViewContext<Self>,
7529 ) -> Task<Result<bool>> {
7530 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7531 }
7532
7533 pub fn go_to_implementation_split(
7534 &mut self,
7535 _: &GoToImplementationSplit,
7536 cx: &mut ViewContext<Self>,
7537 ) -> Task<Result<bool>> {
7538 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7539 }
7540
7541 pub fn go_to_type_definition(
7542 &mut self,
7543 _: &GoToTypeDefinition,
7544 cx: &mut ViewContext<Self>,
7545 ) -> Task<Result<bool>> {
7546 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7547 }
7548
7549 pub fn go_to_definition_split(
7550 &mut self,
7551 _: &GoToDefinitionSplit,
7552 cx: &mut ViewContext<Self>,
7553 ) -> Task<Result<bool>> {
7554 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7555 }
7556
7557 pub fn go_to_type_definition_split(
7558 &mut self,
7559 _: &GoToTypeDefinitionSplit,
7560 cx: &mut ViewContext<Self>,
7561 ) -> Task<Result<bool>> {
7562 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7563 }
7564
7565 fn go_to_definition_of_kind(
7566 &mut self,
7567 kind: GotoDefinitionKind,
7568 split: bool,
7569 cx: &mut ViewContext<Self>,
7570 ) -> Task<Result<bool>> {
7571 let Some(workspace) = self.workspace() else {
7572 return Task::ready(Ok(false));
7573 };
7574 let buffer = self.buffer.read(cx);
7575 let head = self.selections.newest::<usize>(cx).head();
7576 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7577 text_anchor
7578 } else {
7579 return Task::ready(Ok(false));
7580 };
7581
7582 let project = workspace.read(cx).project().clone();
7583 let definitions = project.update(cx, |project, cx| match kind {
7584 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7585 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7586 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7587 });
7588
7589 cx.spawn(|editor, mut cx| async move {
7590 let definitions = definitions.await?;
7591 let navigated = editor
7592 .update(&mut cx, |editor, cx| {
7593 editor.navigate_to_hover_links(
7594 Some(kind),
7595 definitions.into_iter().map(HoverLink::Text).collect(),
7596 split,
7597 cx,
7598 )
7599 })?
7600 .await?;
7601 anyhow::Ok(navigated)
7602 })
7603 }
7604
7605 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7606 let position = self.selections.newest_anchor().head();
7607 let Some((buffer, buffer_position)) =
7608 self.buffer.read(cx).text_anchor_for_position(position, cx)
7609 else {
7610 return;
7611 };
7612
7613 cx.spawn(|editor, mut cx| async move {
7614 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7615 editor.update(&mut cx, |_, cx| {
7616 cx.open_url(&url);
7617 })
7618 } else {
7619 Ok(())
7620 }
7621 })
7622 .detach();
7623 }
7624
7625 pub(crate) fn navigate_to_hover_links(
7626 &mut self,
7627 kind: Option<GotoDefinitionKind>,
7628 mut definitions: Vec<HoverLink>,
7629 split: bool,
7630 cx: &mut ViewContext<Editor>,
7631 ) -> Task<Result<bool>> {
7632 // If there is one definition, just open it directly
7633 if definitions.len() == 1 {
7634 let definition = definitions.pop().unwrap();
7635 let target_task = match definition {
7636 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7637 HoverLink::InlayHint(lsp_location, server_id) => {
7638 self.compute_target_location(lsp_location, server_id, cx)
7639 }
7640 HoverLink::Url(url) => {
7641 cx.open_url(&url);
7642 Task::ready(Ok(None))
7643 }
7644 };
7645 cx.spawn(|editor, mut cx| async move {
7646 let target = target_task.await.context("target resolution task")?;
7647 if let Some(target) = target {
7648 editor.update(&mut cx, |editor, cx| {
7649 let Some(workspace) = editor.workspace() else {
7650 return false;
7651 };
7652 let pane = workspace.read(cx).active_pane().clone();
7653
7654 let range = target.range.to_offset(target.buffer.read(cx));
7655 let range = editor.range_for_match(&range);
7656 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7657 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7658 s.select_ranges([range]);
7659 });
7660 } else {
7661 cx.window_context().defer(move |cx| {
7662 let target_editor: View<Self> =
7663 workspace.update(cx, |workspace, cx| {
7664 let pane = if split {
7665 workspace.adjacent_pane(cx)
7666 } else {
7667 workspace.active_pane().clone()
7668 };
7669
7670 workspace.open_project_item(pane, target.buffer.clone(), cx)
7671 });
7672 target_editor.update(cx, |target_editor, cx| {
7673 // When selecting a definition in a different buffer, disable the nav history
7674 // to avoid creating a history entry at the previous cursor location.
7675 pane.update(cx, |pane, _| pane.disable_history());
7676 target_editor.change_selections(
7677 Some(Autoscroll::fit()),
7678 cx,
7679 |s| {
7680 s.select_ranges([range]);
7681 },
7682 );
7683 pane.update(cx, |pane, _| pane.enable_history());
7684 });
7685 });
7686 }
7687 true
7688 })
7689 } else {
7690 Ok(false)
7691 }
7692 })
7693 } else if !definitions.is_empty() {
7694 let replica_id = self.replica_id(cx);
7695 cx.spawn(|editor, mut cx| async move {
7696 let (title, location_tasks, workspace) = editor
7697 .update(&mut cx, |editor, cx| {
7698 let tab_kind = match kind {
7699 Some(GotoDefinitionKind::Implementation) => "Implementations",
7700 _ => "Definitions",
7701 };
7702 let title = definitions
7703 .iter()
7704 .find_map(|definition| match definition {
7705 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7706 let buffer = origin.buffer.read(cx);
7707 format!(
7708 "{} for {}",
7709 tab_kind,
7710 buffer
7711 .text_for_range(origin.range.clone())
7712 .collect::<String>()
7713 )
7714 }),
7715 HoverLink::InlayHint(_, _) => None,
7716 HoverLink::Url(_) => None,
7717 })
7718 .unwrap_or(tab_kind.to_string());
7719 let location_tasks = definitions
7720 .into_iter()
7721 .map(|definition| match definition {
7722 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7723 HoverLink::InlayHint(lsp_location, server_id) => {
7724 editor.compute_target_location(lsp_location, server_id, cx)
7725 }
7726 HoverLink::Url(_) => Task::ready(Ok(None)),
7727 })
7728 .collect::<Vec<_>>();
7729 (title, location_tasks, editor.workspace().clone())
7730 })
7731 .context("location tasks preparation")?;
7732
7733 let locations = futures::future::join_all(location_tasks)
7734 .await
7735 .into_iter()
7736 .filter_map(|location| location.transpose())
7737 .collect::<Result<_>>()
7738 .context("location tasks")?;
7739
7740 let Some(workspace) = workspace else {
7741 return Ok(false);
7742 };
7743 let opened = workspace
7744 .update(&mut cx, |workspace, cx| {
7745 Self::open_locations_in_multibuffer(
7746 workspace, locations, replica_id, title, split, cx,
7747 )
7748 })
7749 .ok();
7750
7751 anyhow::Ok(opened.is_some())
7752 })
7753 } else {
7754 Task::ready(Ok(false))
7755 }
7756 }
7757
7758 fn compute_target_location(
7759 &self,
7760 lsp_location: lsp::Location,
7761 server_id: LanguageServerId,
7762 cx: &mut ViewContext<Editor>,
7763 ) -> Task<anyhow::Result<Option<Location>>> {
7764 let Some(project) = self.project.clone() else {
7765 return Task::Ready(Some(Ok(None)));
7766 };
7767
7768 cx.spawn(move |editor, mut cx| async move {
7769 let location_task = editor.update(&mut cx, |editor, cx| {
7770 project.update(cx, |project, cx| {
7771 let language_server_name =
7772 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7773 project
7774 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7775 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7776 });
7777 language_server_name.map(|language_server_name| {
7778 project.open_local_buffer_via_lsp(
7779 lsp_location.uri.clone(),
7780 server_id,
7781 language_server_name,
7782 cx,
7783 )
7784 })
7785 })
7786 })?;
7787 let location = match location_task {
7788 Some(task) => Some({
7789 let target_buffer_handle = task.await.context("open local buffer")?;
7790 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7791 let target_start = target_buffer
7792 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7793 let target_end = target_buffer
7794 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7795 target_buffer.anchor_after(target_start)
7796 ..target_buffer.anchor_before(target_end)
7797 })?;
7798 Location {
7799 buffer: target_buffer_handle,
7800 range,
7801 }
7802 }),
7803 None => None,
7804 };
7805 Ok(location)
7806 })
7807 }
7808
7809 pub fn find_all_references(
7810 &mut self,
7811 _: &FindAllReferences,
7812 cx: &mut ViewContext<Self>,
7813 ) -> Option<Task<Result<()>>> {
7814 let multi_buffer = self.buffer.read(cx);
7815 let selection = self.selections.newest::<usize>(cx);
7816 let head = selection.head();
7817
7818 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7819 let head_anchor = multi_buffer_snapshot.anchor_at(
7820 head,
7821 if head < selection.tail() {
7822 Bias::Right
7823 } else {
7824 Bias::Left
7825 },
7826 );
7827 match self
7828 .find_all_references_task_sources
7829 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7830 {
7831 Ok(_) => {
7832 log::info!(
7833 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7834 );
7835 return None;
7836 }
7837 Err(i) => {
7838 self.find_all_references_task_sources.insert(i, head_anchor);
7839 }
7840 }
7841
7842 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7843 let replica_id = self.replica_id(cx);
7844 let workspace = self.workspace()?;
7845 let project = workspace.read(cx).project().clone();
7846 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7847 let open_task = cx.spawn(|editor, mut cx| async move {
7848 let mut locations = references.await?;
7849 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7850 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7851
7852 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7853 // So we will remove it from locations
7854 // If there is only one reference, we will not do this filter cause it may make locations empty
7855 if locations.len() > 1 {
7856 cx.update(|cx| {
7857 locations.retain(|location| {
7858 // fn foo(x : i64) {
7859 // ^
7860 // println!(x);
7861 // }
7862 // It is ok to find reference when caret being at ^ (the end of the word)
7863 // So we turn offset into inclusive to include the end of the word
7864 !location
7865 .range
7866 .to_offset(location.buffer.read(cx))
7867 .to_inclusive()
7868 .contains(&head_offset)
7869 });
7870 })?;
7871 }
7872
7873 if locations.is_empty() {
7874 return Ok(());
7875 }
7876
7877 // If there is one reference, just open it directly
7878 if locations.len() == 1 {
7879 let target = locations.pop().unwrap();
7880
7881 return editor.update(&mut cx, |editor, cx| {
7882 let range = target.range.to_offset(target.buffer.read(cx));
7883 let range = editor.range_for_match(&range);
7884
7885 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7886 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7887 s.select_ranges([range]);
7888 });
7889 } else {
7890 cx.window_context().defer(move |cx| {
7891 let target_editor: View<Self> =
7892 workspace.update(cx, |workspace, cx| {
7893 workspace.open_project_item(
7894 workspace.active_pane().clone(),
7895 target.buffer.clone(),
7896 cx,
7897 )
7898 });
7899 target_editor.update(cx, |target_editor, cx| {
7900 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7901 s.select_ranges([range]);
7902 })
7903 })
7904 })
7905 }
7906 });
7907 }
7908
7909 workspace.update(&mut cx, |workspace, cx| {
7910 let title = locations
7911 .first()
7912 .as_ref()
7913 .map(|location| {
7914 let buffer = location.buffer.read(cx);
7915 format!(
7916 "References to `{}`",
7917 buffer
7918 .text_for_range(location.range.clone())
7919 .collect::<String>()
7920 )
7921 })
7922 .unwrap();
7923 Self::open_locations_in_multibuffer(
7924 workspace, locations, replica_id, title, false, cx,
7925 );
7926 })?;
7927
7928 Ok(())
7929 });
7930 Some(cx.spawn(|editor, mut cx| async move {
7931 open_task.await?;
7932 editor.update(&mut cx, |editor, _| {
7933 if let Ok(i) =
7934 editor
7935 .find_all_references_task_sources
7936 .binary_search_by(|task_anchor| {
7937 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
7938 })
7939 {
7940 editor.find_all_references_task_sources.remove(i);
7941 }
7942 })?;
7943 anyhow::Ok(())
7944 }))
7945 }
7946
7947 /// Opens a multibuffer with the given project locations in it
7948 pub fn open_locations_in_multibuffer(
7949 workspace: &mut Workspace,
7950 mut locations: Vec<Location>,
7951 replica_id: ReplicaId,
7952 title: String,
7953 split: bool,
7954 cx: &mut ViewContext<Workspace>,
7955 ) {
7956 // If there are multiple definitions, open them in a multibuffer
7957 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7958 let mut locations = locations.into_iter().peekable();
7959 let mut ranges_to_highlight = Vec::new();
7960 let capability = workspace.project().read(cx).capability();
7961
7962 let excerpt_buffer = cx.new_model(|cx| {
7963 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7964 while let Some(location) = locations.next() {
7965 let buffer = location.buffer.read(cx);
7966 let mut ranges_for_buffer = Vec::new();
7967 let range = location.range.to_offset(buffer);
7968 ranges_for_buffer.push(range.clone());
7969
7970 while let Some(next_location) = locations.peek() {
7971 if next_location.buffer == location.buffer {
7972 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7973 locations.next();
7974 } else {
7975 break;
7976 }
7977 }
7978
7979 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7980 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7981 location.buffer.clone(),
7982 ranges_for_buffer,
7983 1,
7984 cx,
7985 ))
7986 }
7987
7988 multibuffer.with_title(title)
7989 });
7990
7991 let editor = cx.new_view(|cx| {
7992 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7993 });
7994 editor.update(cx, |editor, cx| {
7995 editor.highlight_background::<Self>(
7996 ranges_to_highlight,
7997 |theme| theme.editor_highlighted_line_background,
7998 cx,
7999 );
8000 });
8001 if split {
8002 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8003 } else {
8004 workspace.add_item_to_active_pane(Box::new(editor), cx);
8005 }
8006 }
8007
8008 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8009 use language::ToOffset as _;
8010
8011 let project = self.project.clone()?;
8012 let selection = self.selections.newest_anchor().clone();
8013 let (cursor_buffer, cursor_buffer_position) = self
8014 .buffer
8015 .read(cx)
8016 .text_anchor_for_position(selection.head(), cx)?;
8017 let (tail_buffer, _) = self
8018 .buffer
8019 .read(cx)
8020 .text_anchor_for_position(selection.tail(), cx)?;
8021 if tail_buffer != cursor_buffer {
8022 return None;
8023 }
8024
8025 let snapshot = cursor_buffer.read(cx).snapshot();
8026 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8027 let prepare_rename = project.update(cx, |project, cx| {
8028 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8029 });
8030 drop(snapshot);
8031
8032 Some(cx.spawn(|this, mut cx| async move {
8033 let rename_range = if let Some(range) = prepare_rename.await? {
8034 Some(range)
8035 } else {
8036 this.update(&mut cx, |this, cx| {
8037 let buffer = this.buffer.read(cx).snapshot(cx);
8038 let mut buffer_highlights = this
8039 .document_highlights_for_position(selection.head(), &buffer)
8040 .filter(|highlight| {
8041 highlight.start.excerpt_id == selection.head().excerpt_id
8042 && highlight.end.excerpt_id == selection.head().excerpt_id
8043 });
8044 buffer_highlights
8045 .next()
8046 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8047 })?
8048 };
8049 if let Some(rename_range) = rename_range {
8050 this.update(&mut cx, |this, cx| {
8051 let snapshot = cursor_buffer.read(cx).snapshot();
8052 let rename_buffer_range = rename_range.to_offset(&snapshot);
8053 let cursor_offset_in_rename_range =
8054 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8055
8056 this.take_rename(false, cx);
8057 let buffer = this.buffer.read(cx).read(cx);
8058 let cursor_offset = selection.head().to_offset(&buffer);
8059 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8060 let rename_end = rename_start + rename_buffer_range.len();
8061 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8062 let mut old_highlight_id = None;
8063 let old_name: Arc<str> = buffer
8064 .chunks(rename_start..rename_end, true)
8065 .map(|chunk| {
8066 if old_highlight_id.is_none() {
8067 old_highlight_id = chunk.syntax_highlight_id;
8068 }
8069 chunk.text
8070 })
8071 .collect::<String>()
8072 .into();
8073
8074 drop(buffer);
8075
8076 // Position the selection in the rename editor so that it matches the current selection.
8077 this.show_local_selections = false;
8078 let rename_editor = cx.new_view(|cx| {
8079 let mut editor = Editor::single_line(cx);
8080 editor.buffer.update(cx, |buffer, cx| {
8081 buffer.edit([(0..0, old_name.clone())], None, cx)
8082 });
8083 editor.select_all(&SelectAll, cx);
8084 editor
8085 });
8086
8087 let ranges = this
8088 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8089 .into_iter()
8090 .flat_map(|(_, ranges)| ranges.into_iter())
8091 .chain(
8092 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8093 .into_iter()
8094 .flat_map(|(_, ranges)| ranges.into_iter()),
8095 )
8096 .collect();
8097
8098 this.highlight_text::<Rename>(
8099 ranges,
8100 HighlightStyle {
8101 fade_out: Some(0.6),
8102 ..Default::default()
8103 },
8104 cx,
8105 );
8106 let rename_focus_handle = rename_editor.focus_handle(cx);
8107 cx.focus(&rename_focus_handle);
8108 let block_id = this.insert_blocks(
8109 [BlockProperties {
8110 style: BlockStyle::Flex,
8111 position: range.start,
8112 height: 1,
8113 render: Arc::new({
8114 let rename_editor = rename_editor.clone();
8115 move |cx: &mut BlockContext| {
8116 let mut text_style = cx.editor_style.text.clone();
8117 if let Some(highlight_style) = old_highlight_id
8118 .and_then(|h| h.style(&cx.editor_style.syntax))
8119 {
8120 text_style = text_style.highlight(highlight_style);
8121 }
8122 div()
8123 .pl(cx.anchor_x)
8124 .child(EditorElement::new(
8125 &rename_editor,
8126 EditorStyle {
8127 background: cx.theme().system().transparent,
8128 local_player: cx.editor_style.local_player,
8129 text: text_style,
8130 scrollbar_width: cx.editor_style.scrollbar_width,
8131 syntax: cx.editor_style.syntax.clone(),
8132 status: cx.editor_style.status.clone(),
8133 inlay_hints_style: HighlightStyle {
8134 color: Some(cx.theme().status().hint),
8135 font_weight: Some(FontWeight::BOLD),
8136 ..HighlightStyle::default()
8137 },
8138 suggestions_style: HighlightStyle {
8139 color: Some(cx.theme().status().predictive),
8140 ..HighlightStyle::default()
8141 },
8142 },
8143 ))
8144 .into_any_element()
8145 }
8146 }),
8147 disposition: BlockDisposition::Below,
8148 }],
8149 Some(Autoscroll::fit()),
8150 cx,
8151 )[0];
8152 this.pending_rename = Some(RenameState {
8153 range,
8154 old_name,
8155 editor: rename_editor,
8156 block_id,
8157 });
8158 })?;
8159 }
8160
8161 Ok(())
8162 }))
8163 }
8164
8165 pub fn confirm_rename(
8166 &mut self,
8167 _: &ConfirmRename,
8168 cx: &mut ViewContext<Self>,
8169 ) -> Option<Task<Result<()>>> {
8170 let rename = self.take_rename(false, cx)?;
8171 let workspace = self.workspace()?;
8172 let (start_buffer, start) = self
8173 .buffer
8174 .read(cx)
8175 .text_anchor_for_position(rename.range.start, cx)?;
8176 let (end_buffer, end) = self
8177 .buffer
8178 .read(cx)
8179 .text_anchor_for_position(rename.range.end, cx)?;
8180 if start_buffer != end_buffer {
8181 return None;
8182 }
8183
8184 let buffer = start_buffer;
8185 let range = start..end;
8186 let old_name = rename.old_name;
8187 let new_name = rename.editor.read(cx).text(cx);
8188
8189 let rename = workspace
8190 .read(cx)
8191 .project()
8192 .clone()
8193 .update(cx, |project, cx| {
8194 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8195 });
8196 let workspace = workspace.downgrade();
8197
8198 Some(cx.spawn(|editor, mut cx| async move {
8199 let project_transaction = rename.await?;
8200 Self::open_project_transaction(
8201 &editor,
8202 workspace,
8203 project_transaction,
8204 format!("Rename: {} → {}", old_name, new_name),
8205 cx.clone(),
8206 )
8207 .await?;
8208
8209 editor.update(&mut cx, |editor, cx| {
8210 editor.refresh_document_highlights(cx);
8211 })?;
8212 Ok(())
8213 }))
8214 }
8215
8216 fn take_rename(
8217 &mut self,
8218 moving_cursor: bool,
8219 cx: &mut ViewContext<Self>,
8220 ) -> Option<RenameState> {
8221 let rename = self.pending_rename.take()?;
8222 if rename.editor.focus_handle(cx).is_focused(cx) {
8223 cx.focus(&self.focus_handle);
8224 }
8225
8226 self.remove_blocks(
8227 [rename.block_id].into_iter().collect(),
8228 Some(Autoscroll::fit()),
8229 cx,
8230 );
8231 self.clear_highlights::<Rename>(cx);
8232 self.show_local_selections = true;
8233
8234 if moving_cursor {
8235 let rename_editor = rename.editor.read(cx);
8236 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8237
8238 // Update the selection to match the position of the selection inside
8239 // the rename editor.
8240 let snapshot = self.buffer.read(cx).read(cx);
8241 let rename_range = rename.range.to_offset(&snapshot);
8242 let cursor_in_editor = snapshot
8243 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8244 .min(rename_range.end);
8245 drop(snapshot);
8246
8247 self.change_selections(None, cx, |s| {
8248 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8249 });
8250 } else {
8251 self.refresh_document_highlights(cx);
8252 }
8253
8254 Some(rename)
8255 }
8256
8257 pub fn pending_rename(&self) -> Option<&RenameState> {
8258 self.pending_rename.as_ref()
8259 }
8260
8261 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8262 let project = match &self.project {
8263 Some(project) => project.clone(),
8264 None => return None,
8265 };
8266
8267 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8268 }
8269
8270 fn perform_format(
8271 &mut self,
8272 project: Model<Project>,
8273 trigger: FormatTrigger,
8274 cx: &mut ViewContext<Self>,
8275 ) -> Task<Result<()>> {
8276 let buffer = self.buffer().clone();
8277 let mut buffers = buffer.read(cx).all_buffers();
8278 if trigger == FormatTrigger::Save {
8279 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8280 }
8281
8282 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8283 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8284
8285 cx.spawn(|_, mut cx| async move {
8286 let transaction = futures::select_biased! {
8287 () = timeout => {
8288 log::warn!("timed out waiting for formatting");
8289 None
8290 }
8291 transaction = format.log_err().fuse() => transaction,
8292 };
8293
8294 buffer
8295 .update(&mut cx, |buffer, cx| {
8296 if let Some(transaction) = transaction {
8297 if !buffer.is_singleton() {
8298 buffer.push_transaction(&transaction.0, cx);
8299 }
8300 }
8301
8302 cx.notify();
8303 })
8304 .ok();
8305
8306 Ok(())
8307 })
8308 }
8309
8310 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8311 if let Some(project) = self.project.clone() {
8312 self.buffer.update(cx, |multi_buffer, cx| {
8313 project.update(cx, |project, cx| {
8314 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8315 });
8316 })
8317 }
8318 }
8319
8320 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8321 cx.show_character_palette();
8322 }
8323
8324 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8325 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8326 let buffer = self.buffer.read(cx).snapshot(cx);
8327 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8328 let is_valid = buffer
8329 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8330 .any(|entry| {
8331 entry.diagnostic.is_primary
8332 && !entry.range.is_empty()
8333 && entry.range.start == primary_range_start
8334 && entry.diagnostic.message == active_diagnostics.primary_message
8335 });
8336
8337 if is_valid != active_diagnostics.is_valid {
8338 active_diagnostics.is_valid = is_valid;
8339 let mut new_styles = HashMap::default();
8340 for (block_id, diagnostic) in &active_diagnostics.blocks {
8341 new_styles.insert(
8342 *block_id,
8343 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8344 );
8345 }
8346 self.display_map
8347 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8348 }
8349 }
8350 }
8351
8352 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8353 self.dismiss_diagnostics(cx);
8354 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8355 let buffer = self.buffer.read(cx).snapshot(cx);
8356
8357 let mut primary_range = None;
8358 let mut primary_message = None;
8359 let mut group_end = Point::zero();
8360 let diagnostic_group = buffer
8361 .diagnostic_group::<Point>(group_id)
8362 .map(|entry| {
8363 if entry.range.end > group_end {
8364 group_end = entry.range.end;
8365 }
8366 if entry.diagnostic.is_primary {
8367 primary_range = Some(entry.range.clone());
8368 primary_message = Some(entry.diagnostic.message.clone());
8369 }
8370 entry
8371 })
8372 .collect::<Vec<_>>();
8373 let primary_range = primary_range?;
8374 let primary_message = primary_message?;
8375 let primary_range =
8376 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8377
8378 let blocks = display_map
8379 .insert_blocks(
8380 diagnostic_group.iter().map(|entry| {
8381 let diagnostic = entry.diagnostic.clone();
8382 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8383 BlockProperties {
8384 style: BlockStyle::Fixed,
8385 position: buffer.anchor_after(entry.range.start),
8386 height: message_height,
8387 render: diagnostic_block_renderer(diagnostic, true),
8388 disposition: BlockDisposition::Below,
8389 }
8390 }),
8391 cx,
8392 )
8393 .into_iter()
8394 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8395 .collect();
8396
8397 Some(ActiveDiagnosticGroup {
8398 primary_range,
8399 primary_message,
8400 blocks,
8401 is_valid: true,
8402 })
8403 });
8404 self.active_diagnostics.is_some()
8405 }
8406
8407 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8408 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8409 self.display_map.update(cx, |display_map, cx| {
8410 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8411 });
8412 cx.notify();
8413 }
8414 }
8415
8416 pub fn set_selections_from_remote(
8417 &mut self,
8418 selections: Vec<Selection<Anchor>>,
8419 pending_selection: Option<Selection<Anchor>>,
8420 cx: &mut ViewContext<Self>,
8421 ) {
8422 let old_cursor_position = self.selections.newest_anchor().head();
8423 self.selections.change_with(cx, |s| {
8424 s.select_anchors(selections);
8425 if let Some(pending_selection) = pending_selection {
8426 s.set_pending(pending_selection, SelectMode::Character);
8427 } else {
8428 s.clear_pending();
8429 }
8430 });
8431 self.selections_did_change(false, &old_cursor_position, cx);
8432 }
8433
8434 fn push_to_selection_history(&mut self) {
8435 self.selection_history.push(SelectionHistoryEntry {
8436 selections: self.selections.disjoint_anchors(),
8437 select_next_state: self.select_next_state.clone(),
8438 select_prev_state: self.select_prev_state.clone(),
8439 add_selections_state: self.add_selections_state.clone(),
8440 });
8441 }
8442
8443 pub fn transact(
8444 &mut self,
8445 cx: &mut ViewContext<Self>,
8446 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8447 ) -> Option<TransactionId> {
8448 self.start_transaction_at(Instant::now(), cx);
8449 update(self, cx);
8450 self.end_transaction_at(Instant::now(), cx)
8451 }
8452
8453 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8454 self.end_selection(cx);
8455 if let Some(tx_id) = self
8456 .buffer
8457 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8458 {
8459 self.selection_history
8460 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8461 cx.emit(EditorEvent::TransactionBegun {
8462 transaction_id: tx_id,
8463 })
8464 }
8465 }
8466
8467 fn end_transaction_at(
8468 &mut self,
8469 now: Instant,
8470 cx: &mut ViewContext<Self>,
8471 ) -> Option<TransactionId> {
8472 if let Some(tx_id) = self
8473 .buffer
8474 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8475 {
8476 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8477 *end_selections = Some(self.selections.disjoint_anchors());
8478 } else {
8479 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8480 }
8481
8482 cx.emit(EditorEvent::Edited);
8483 Some(tx_id)
8484 } else {
8485 None
8486 }
8487 }
8488
8489 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8490 let mut fold_ranges = Vec::new();
8491
8492 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8493
8494 let selections = self.selections.all_adjusted(cx);
8495 for selection in selections {
8496 let range = selection.range().sorted();
8497 let buffer_start_row = range.start.row;
8498
8499 for row in (0..=range.end.row).rev() {
8500 let fold_range = display_map.foldable_range(row);
8501
8502 if let Some(fold_range) = fold_range {
8503 if fold_range.end.row >= buffer_start_row {
8504 fold_ranges.push(fold_range);
8505 if row <= range.start.row {
8506 break;
8507 }
8508 }
8509 }
8510 }
8511 }
8512
8513 self.fold_ranges(fold_ranges, true, cx);
8514 }
8515
8516 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8517 let buffer_row = fold_at.buffer_row;
8518 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8519
8520 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8521 let autoscroll = self
8522 .selections
8523 .all::<Point>(cx)
8524 .iter()
8525 .any(|selection| fold_range.overlaps(&selection.range()));
8526
8527 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8528 }
8529 }
8530
8531 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8532 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8533 let buffer = &display_map.buffer_snapshot;
8534 let selections = self.selections.all::<Point>(cx);
8535 let ranges = selections
8536 .iter()
8537 .map(|s| {
8538 let range = s.display_range(&display_map).sorted();
8539 let mut start = range.start.to_point(&display_map);
8540 let mut end = range.end.to_point(&display_map);
8541 start.column = 0;
8542 end.column = buffer.line_len(end.row);
8543 start..end
8544 })
8545 .collect::<Vec<_>>();
8546
8547 self.unfold_ranges(ranges, true, true, cx);
8548 }
8549
8550 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8551 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8552
8553 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8554 ..Point::new(
8555 unfold_at.buffer_row,
8556 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8557 );
8558
8559 let autoscroll = self
8560 .selections
8561 .all::<Point>(cx)
8562 .iter()
8563 .any(|selection| selection.range().overlaps(&intersection_range));
8564
8565 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8566 }
8567
8568 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8569 let selections = self.selections.all::<Point>(cx);
8570 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8571 let line_mode = self.selections.line_mode;
8572 let ranges = selections.into_iter().map(|s| {
8573 if line_mode {
8574 let start = Point::new(s.start.row, 0);
8575 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8576 start..end
8577 } else {
8578 s.start..s.end
8579 }
8580 });
8581 self.fold_ranges(ranges, true, cx);
8582 }
8583
8584 pub fn fold_ranges<T: ToOffset + Clone>(
8585 &mut self,
8586 ranges: impl IntoIterator<Item = Range<T>>,
8587 auto_scroll: bool,
8588 cx: &mut ViewContext<Self>,
8589 ) {
8590 let mut ranges = ranges.into_iter().peekable();
8591 if ranges.peek().is_some() {
8592 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8593
8594 if auto_scroll {
8595 self.request_autoscroll(Autoscroll::fit(), cx);
8596 }
8597
8598 cx.notify();
8599 }
8600 }
8601
8602 pub fn unfold_ranges<T: ToOffset + Clone>(
8603 &mut self,
8604 ranges: impl IntoIterator<Item = Range<T>>,
8605 inclusive: bool,
8606 auto_scroll: bool,
8607 cx: &mut ViewContext<Self>,
8608 ) {
8609 let mut ranges = ranges.into_iter().peekable();
8610 if ranges.peek().is_some() {
8611 self.display_map
8612 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8613 if auto_scroll {
8614 self.request_autoscroll(Autoscroll::fit(), cx);
8615 }
8616
8617 cx.notify();
8618 }
8619 }
8620
8621 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8622 if hovered != self.gutter_hovered {
8623 self.gutter_hovered = hovered;
8624 cx.notify();
8625 }
8626 }
8627
8628 pub fn insert_blocks(
8629 &mut self,
8630 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8631 autoscroll: Option<Autoscroll>,
8632 cx: &mut ViewContext<Self>,
8633 ) -> Vec<BlockId> {
8634 let blocks = self
8635 .display_map
8636 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8637 if let Some(autoscroll) = autoscroll {
8638 self.request_autoscroll(autoscroll, cx);
8639 }
8640 blocks
8641 }
8642
8643 pub fn replace_blocks(
8644 &mut self,
8645 blocks: HashMap<BlockId, RenderBlock>,
8646 autoscroll: Option<Autoscroll>,
8647 cx: &mut ViewContext<Self>,
8648 ) {
8649 self.display_map
8650 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8651 if let Some(autoscroll) = autoscroll {
8652 self.request_autoscroll(autoscroll, cx);
8653 }
8654 }
8655
8656 pub fn remove_blocks(
8657 &mut self,
8658 block_ids: HashSet<BlockId>,
8659 autoscroll: Option<Autoscroll>,
8660 cx: &mut ViewContext<Self>,
8661 ) {
8662 self.display_map.update(cx, |display_map, cx| {
8663 display_map.remove_blocks(block_ids, cx)
8664 });
8665 if let Some(autoscroll) = autoscroll {
8666 self.request_autoscroll(autoscroll, cx);
8667 }
8668 }
8669
8670 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8671 self.display_map
8672 .update(cx, |map, cx| map.snapshot(cx))
8673 .longest_row()
8674 }
8675
8676 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8677 self.display_map
8678 .update(cx, |map, cx| map.snapshot(cx))
8679 .max_point()
8680 }
8681
8682 pub fn text(&self, cx: &AppContext) -> String {
8683 self.buffer.read(cx).read(cx).text()
8684 }
8685
8686 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8687 let text = self.text(cx);
8688 let text = text.trim();
8689
8690 if text.is_empty() {
8691 return None;
8692 }
8693
8694 Some(text.to_string())
8695 }
8696
8697 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8698 self.transact(cx, |this, cx| {
8699 this.buffer
8700 .read(cx)
8701 .as_singleton()
8702 .expect("you can only call set_text on editors for singleton buffers")
8703 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8704 });
8705 }
8706
8707 pub fn display_text(&self, cx: &mut AppContext) -> String {
8708 self.display_map
8709 .update(cx, |map, cx| map.snapshot(cx))
8710 .text()
8711 }
8712
8713 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8714 let mut wrap_guides = smallvec::smallvec![];
8715
8716 if self.show_wrap_guides == Some(false) {
8717 return wrap_guides;
8718 }
8719
8720 let settings = self.buffer.read(cx).settings_at(0, cx);
8721 if settings.show_wrap_guides {
8722 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8723 wrap_guides.push((soft_wrap as usize, true));
8724 }
8725 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8726 }
8727
8728 wrap_guides
8729 }
8730
8731 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8732 let settings = self.buffer.read(cx).settings_at(0, cx);
8733 let mode = self
8734 .soft_wrap_mode_override
8735 .unwrap_or_else(|| settings.soft_wrap);
8736 match mode {
8737 language_settings::SoftWrap::None => SoftWrap::None,
8738 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8739 language_settings::SoftWrap::PreferredLineLength => {
8740 SoftWrap::Column(settings.preferred_line_length)
8741 }
8742 }
8743 }
8744
8745 pub fn set_soft_wrap_mode(
8746 &mut self,
8747 mode: language_settings::SoftWrap,
8748 cx: &mut ViewContext<Self>,
8749 ) {
8750 self.soft_wrap_mode_override = Some(mode);
8751 cx.notify();
8752 }
8753
8754 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8755 let rem_size = cx.rem_size();
8756 self.display_map.update(cx, |map, cx| {
8757 map.set_font(
8758 style.text.font(),
8759 style.text.font_size.to_pixels(rem_size),
8760 cx,
8761 )
8762 });
8763 self.style = Some(style);
8764 }
8765
8766 #[cfg(any(test, feature = "test-support"))]
8767 pub fn style(&self) -> Option<&EditorStyle> {
8768 self.style.as_ref()
8769 }
8770
8771 // Called by the element. This method is not designed to be called outside of the editor
8772 // element's layout code because it does not notify when rewrapping is computed synchronously.
8773 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8774 self.display_map
8775 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8776 }
8777
8778 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8779 if self.soft_wrap_mode_override.is_some() {
8780 self.soft_wrap_mode_override.take();
8781 } else {
8782 let soft_wrap = match self.soft_wrap_mode(cx) {
8783 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8784 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8785 };
8786 self.soft_wrap_mode_override = Some(soft_wrap);
8787 }
8788 cx.notify();
8789 }
8790
8791 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8792 let mut editor_settings = EditorSettings::get_global(cx).clone();
8793 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8794 EditorSettings::override_global(editor_settings, cx);
8795 }
8796
8797 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8798 self.show_gutter = show_gutter;
8799 cx.notify();
8800 }
8801
8802 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8803 self.show_wrap_guides = Some(show_gutter);
8804 cx.notify();
8805 }
8806
8807 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, 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 cx.reveal_path(&file.abs_path(cx));
8811 }
8812 }
8813 }
8814
8815 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8816 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8817 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8818 if let Some(path) = file.abs_path(cx).to_str() {
8819 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8820 }
8821 }
8822 }
8823 }
8824
8825 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8826 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8827 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8828 if let Some(path) = file.path().to_str() {
8829 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8830 }
8831 }
8832 }
8833 }
8834
8835 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8836 use git::permalink::{build_permalink, BuildPermalinkParams};
8837
8838 let (path, repo) = maybe!({
8839 let project_handle = self.project.as_ref()?.clone();
8840 let project = project_handle.read(cx);
8841 let buffer = self.buffer().read(cx).as_singleton()?;
8842 let path = buffer
8843 .read(cx)
8844 .file()?
8845 .as_local()?
8846 .path()
8847 .to_str()?
8848 .to_string();
8849 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8850 Some((path, repo))
8851 })
8852 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8853
8854 const REMOTE_NAME: &str = "origin";
8855 let origin_url = repo
8856 .lock()
8857 .remote_url(REMOTE_NAME)
8858 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8859 let sha = repo
8860 .lock()
8861 .head_sha()
8862 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8863 let selections = self.selections.all::<Point>(cx);
8864 let selection = selections.iter().peekable().next();
8865
8866 build_permalink(BuildPermalinkParams {
8867 remote_url: &origin_url,
8868 sha: &sha,
8869 path: &path,
8870 selection: selection.map(|selection| selection.range()),
8871 })
8872 }
8873
8874 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8875 let permalink = self.get_permalink_to_line(cx);
8876
8877 match permalink {
8878 Ok(permalink) => {
8879 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8880 }
8881 Err(err) => {
8882 let message = format!("Failed to copy permalink: {err}");
8883
8884 Err::<(), anyhow::Error>(err).log_err();
8885
8886 if let Some(workspace) = self.workspace() {
8887 workspace.update(cx, |workspace, cx| {
8888 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8889 })
8890 }
8891 }
8892 }
8893 }
8894
8895 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8896 let permalink = self.get_permalink_to_line(cx);
8897
8898 match permalink {
8899 Ok(permalink) => {
8900 cx.open_url(permalink.as_ref());
8901 }
8902 Err(err) => {
8903 let message = format!("Failed to open permalink: {err}");
8904
8905 Err::<(), anyhow::Error>(err).log_err();
8906
8907 if let Some(workspace) = self.workspace() {
8908 workspace.update(cx, |workspace, cx| {
8909 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8910 })
8911 }
8912 }
8913 }
8914 }
8915
8916 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
8917 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
8918 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
8919 pub fn highlight_rows<T: 'static>(
8920 &mut self,
8921 rows: Range<Anchor>,
8922 color: Option<Hsla>,
8923 cx: &mut ViewContext<Self>,
8924 ) {
8925 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
8926 match self.highlighted_rows.entry(TypeId::of::<T>()) {
8927 hash_map::Entry::Occupied(o) => {
8928 let row_highlights = o.into_mut();
8929 let existing_highlight_index =
8930 row_highlights.binary_search_by(|(_, highlight_range, _)| {
8931 highlight_range
8932 .start
8933 .cmp(&rows.start, &multi_buffer_snapshot)
8934 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
8935 });
8936 match color {
8937 Some(color) => {
8938 let insert_index = match existing_highlight_index {
8939 Ok(i) => i,
8940 Err(i) => i,
8941 };
8942 row_highlights.insert(
8943 insert_index,
8944 (post_inc(&mut self.highlight_order), rows, color),
8945 );
8946 }
8947 None => {
8948 if let Ok(i) = existing_highlight_index {
8949 row_highlights.remove(i);
8950 }
8951 }
8952 }
8953 }
8954 hash_map::Entry::Vacant(v) => {
8955 if let Some(color) = color {
8956 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
8957 }
8958 }
8959 }
8960 }
8961
8962 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
8963 pub fn clear_row_highlights<T: 'static>(&mut self) {
8964 self.highlighted_rows.remove(&TypeId::of::<T>());
8965 }
8966
8967 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
8968 pub fn highlighted_rows<T: 'static>(
8969 &self,
8970 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
8971 Some(
8972 self.highlighted_rows
8973 .get(&TypeId::of::<T>())?
8974 .iter()
8975 .map(|(_, range, color)| (range, color)),
8976 )
8977 }
8978
8979 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
8980 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
8981 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
8982 let snapshot = self.snapshot(cx);
8983 let mut used_highlight_orders = HashMap::default();
8984 self.highlighted_rows
8985 .iter()
8986 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
8987 .fold(
8988 BTreeMap::<u32, Hsla>::new(),
8989 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
8990 let start_row = anchor_range.start.to_display_point(&snapshot).row();
8991 let end_row = anchor_range.end.to_display_point(&snapshot).row();
8992 for row in start_row..=end_row {
8993 let used_index =
8994 used_highlight_orders.entry(row).or_insert(*highlight_order);
8995 if highlight_order >= used_index {
8996 *used_index = *highlight_order;
8997 unique_rows.insert(row, *hsla);
8998 }
8999 }
9000 unique_rows
9001 },
9002 )
9003 }
9004
9005 pub fn highlight_background<T: 'static>(
9006 &mut self,
9007 ranges: Vec<Range<Anchor>>,
9008 color_fetcher: fn(&ThemeColors) -> Hsla,
9009 cx: &mut ViewContext<Self>,
9010 ) {
9011 let snapshot = self.snapshot(cx);
9012 // this is to try and catch a panic sooner
9013 for range in &ranges {
9014 snapshot
9015 .buffer_snapshot
9016 .summary_for_anchor::<usize>(&range.start);
9017 snapshot
9018 .buffer_snapshot
9019 .summary_for_anchor::<usize>(&range.end);
9020 }
9021
9022 self.background_highlights
9023 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9024 cx.notify();
9025 }
9026
9027 pub fn clear_background_highlights<T: 'static>(
9028 &mut self,
9029 _cx: &mut ViewContext<Self>,
9030 ) -> Option<BackgroundHighlight> {
9031 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9032 text_highlights
9033 }
9034
9035 #[cfg(feature = "test-support")]
9036 pub fn all_text_background_highlights(
9037 &mut self,
9038 cx: &mut ViewContext<Self>,
9039 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9040 let snapshot = self.snapshot(cx);
9041 let buffer = &snapshot.buffer_snapshot;
9042 let start = buffer.anchor_before(0);
9043 let end = buffer.anchor_after(buffer.len());
9044 let theme = cx.theme().colors();
9045 self.background_highlights_in_range(start..end, &snapshot, theme)
9046 }
9047
9048 fn document_highlights_for_position<'a>(
9049 &'a self,
9050 position: Anchor,
9051 buffer: &'a MultiBufferSnapshot,
9052 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9053 let read_highlights = self
9054 .background_highlights
9055 .get(&TypeId::of::<DocumentHighlightRead>())
9056 .map(|h| &h.1);
9057 let write_highlights = self
9058 .background_highlights
9059 .get(&TypeId::of::<DocumentHighlightWrite>())
9060 .map(|h| &h.1);
9061 let left_position = position.bias_left(buffer);
9062 let right_position = position.bias_right(buffer);
9063 read_highlights
9064 .into_iter()
9065 .chain(write_highlights)
9066 .flat_map(move |ranges| {
9067 let start_ix = match ranges.binary_search_by(|probe| {
9068 let cmp = probe.end.cmp(&left_position, buffer);
9069 if cmp.is_ge() {
9070 Ordering::Greater
9071 } else {
9072 Ordering::Less
9073 }
9074 }) {
9075 Ok(i) | Err(i) => i,
9076 };
9077
9078 ranges[start_ix..]
9079 .iter()
9080 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9081 })
9082 }
9083
9084 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9085 self.background_highlights
9086 .get(&TypeId::of::<T>())
9087 .map_or(false, |(_, highlights)| !highlights.is_empty())
9088 }
9089
9090 pub fn background_highlights_in_range(
9091 &self,
9092 search_range: Range<Anchor>,
9093 display_snapshot: &DisplaySnapshot,
9094 theme: &ThemeColors,
9095 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9096 let mut results = Vec::new();
9097 for (color_fetcher, ranges) in self.background_highlights.values() {
9098 let color = color_fetcher(theme);
9099 let start_ix = match ranges.binary_search_by(|probe| {
9100 let cmp = probe
9101 .end
9102 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9103 if cmp.is_gt() {
9104 Ordering::Greater
9105 } else {
9106 Ordering::Less
9107 }
9108 }) {
9109 Ok(i) | Err(i) => i,
9110 };
9111 for range in &ranges[start_ix..] {
9112 if range
9113 .start
9114 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9115 .is_ge()
9116 {
9117 break;
9118 }
9119
9120 let start = range.start.to_display_point(&display_snapshot);
9121 let end = range.end.to_display_point(&display_snapshot);
9122 results.push((start..end, color))
9123 }
9124 }
9125 results
9126 }
9127
9128 pub fn background_highlight_row_ranges<T: 'static>(
9129 &self,
9130 search_range: Range<Anchor>,
9131 display_snapshot: &DisplaySnapshot,
9132 count: usize,
9133 ) -> Vec<RangeInclusive<DisplayPoint>> {
9134 let mut results = Vec::new();
9135 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9136 return vec![];
9137 };
9138
9139 let start_ix = match ranges.binary_search_by(|probe| {
9140 let cmp = probe
9141 .end
9142 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9143 if cmp.is_gt() {
9144 Ordering::Greater
9145 } else {
9146 Ordering::Less
9147 }
9148 }) {
9149 Ok(i) | Err(i) => i,
9150 };
9151 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9152 if let (Some(start_display), Some(end_display)) = (start, end) {
9153 results.push(
9154 start_display.to_display_point(display_snapshot)
9155 ..=end_display.to_display_point(display_snapshot),
9156 );
9157 }
9158 };
9159 let mut start_row: Option<Point> = None;
9160 let mut end_row: Option<Point> = None;
9161 if ranges.len() > count {
9162 return Vec::new();
9163 }
9164 for range in &ranges[start_ix..] {
9165 if range
9166 .start
9167 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9168 .is_ge()
9169 {
9170 break;
9171 }
9172 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9173 if let Some(current_row) = &end_row {
9174 if end.row == current_row.row {
9175 continue;
9176 }
9177 }
9178 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9179 if start_row.is_none() {
9180 assert_eq!(end_row, None);
9181 start_row = Some(start);
9182 end_row = Some(end);
9183 continue;
9184 }
9185 if let Some(current_end) = end_row.as_mut() {
9186 if start.row > current_end.row + 1 {
9187 push_region(start_row, end_row);
9188 start_row = Some(start);
9189 end_row = Some(end);
9190 } else {
9191 // Merge two hunks.
9192 *current_end = end;
9193 }
9194 } else {
9195 unreachable!();
9196 }
9197 }
9198 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9199 push_region(start_row, end_row);
9200 results
9201 }
9202
9203 /// Get the text ranges corresponding to the redaction query
9204 pub fn redacted_ranges(
9205 &self,
9206 search_range: Range<Anchor>,
9207 display_snapshot: &DisplaySnapshot,
9208 cx: &WindowContext,
9209 ) -> Vec<Range<DisplayPoint>> {
9210 display_snapshot
9211 .buffer_snapshot
9212 .redacted_ranges(search_range, |file| {
9213 if let Some(file) = file {
9214 file.is_private()
9215 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9216 } else {
9217 false
9218 }
9219 })
9220 .map(|range| {
9221 range.start.to_display_point(display_snapshot)
9222 ..range.end.to_display_point(display_snapshot)
9223 })
9224 .collect()
9225 }
9226
9227 pub fn highlight_text<T: 'static>(
9228 &mut self,
9229 ranges: Vec<Range<Anchor>>,
9230 style: HighlightStyle,
9231 cx: &mut ViewContext<Self>,
9232 ) {
9233 self.display_map.update(cx, |map, _| {
9234 map.highlight_text(TypeId::of::<T>(), ranges, style)
9235 });
9236 cx.notify();
9237 }
9238
9239 pub(crate) fn highlight_inlays<T: 'static>(
9240 &mut self,
9241 highlights: Vec<InlayHighlight>,
9242 style: HighlightStyle,
9243 cx: &mut ViewContext<Self>,
9244 ) {
9245 self.display_map.update(cx, |map, _| {
9246 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9247 });
9248 cx.notify();
9249 }
9250
9251 pub fn text_highlights<'a, T: 'static>(
9252 &'a self,
9253 cx: &'a AppContext,
9254 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9255 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9256 }
9257
9258 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9259 let cleared = self
9260 .display_map
9261 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9262 if cleared {
9263 cx.notify();
9264 }
9265 }
9266
9267 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9268 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9269 && self.focus_handle.is_focused(cx)
9270 }
9271
9272 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9273 cx.notify();
9274 }
9275
9276 fn on_buffer_event(
9277 &mut self,
9278 multibuffer: Model<MultiBuffer>,
9279 event: &multi_buffer::Event,
9280 cx: &mut ViewContext<Self>,
9281 ) {
9282 match event {
9283 multi_buffer::Event::Edited {
9284 singleton_buffer_edited,
9285 } => {
9286 self.refresh_active_diagnostics(cx);
9287 self.refresh_code_actions(cx);
9288 if self.has_active_inline_completion(cx) {
9289 self.update_visible_inline_completion(cx);
9290 }
9291 cx.emit(EditorEvent::BufferEdited);
9292 cx.emit(SearchEvent::MatchesInvalidated);
9293
9294 if *singleton_buffer_edited {
9295 if let Some(project) = &self.project {
9296 let project = project.read(cx);
9297 let languages_affected = multibuffer
9298 .read(cx)
9299 .all_buffers()
9300 .into_iter()
9301 .filter_map(|buffer| {
9302 let buffer = buffer.read(cx);
9303 let language = buffer.language()?;
9304 if project.is_local()
9305 && project.language_servers_for_buffer(buffer, cx).count() == 0
9306 {
9307 None
9308 } else {
9309 Some(language)
9310 }
9311 })
9312 .cloned()
9313 .collect::<HashSet<_>>();
9314 if !languages_affected.is_empty() {
9315 self.refresh_inlay_hints(
9316 InlayHintRefreshReason::BufferEdited(languages_affected),
9317 cx,
9318 );
9319 }
9320 }
9321 }
9322
9323 let Some(project) = &self.project else { return };
9324 let telemetry = project.read(cx).client().telemetry().clone();
9325 telemetry.log_edit_event("editor");
9326 }
9327 multi_buffer::Event::ExcerptsAdded {
9328 buffer,
9329 predecessor,
9330 excerpts,
9331 } => {
9332 cx.emit(EditorEvent::ExcerptsAdded {
9333 buffer: buffer.clone(),
9334 predecessor: *predecessor,
9335 excerpts: excerpts.clone(),
9336 });
9337 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9338 }
9339 multi_buffer::Event::ExcerptsRemoved { ids } => {
9340 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9341 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9342 }
9343 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9344 multi_buffer::Event::LanguageChanged => {
9345 cx.emit(EditorEvent::Reparsed);
9346 cx.notify();
9347 }
9348 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9349 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9350 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9351 cx.emit(EditorEvent::TitleChanged)
9352 }
9353 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9354 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9355 multi_buffer::Event::DiagnosticsUpdated => {
9356 self.refresh_active_diagnostics(cx);
9357 }
9358 _ => {}
9359 };
9360 }
9361
9362 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9363 cx.notify();
9364 }
9365
9366 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9367 self.refresh_inline_completion(true, cx);
9368 self.refresh_inlay_hints(
9369 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9370 self.selections.newest_anchor().head(),
9371 &self.buffer.read(cx).snapshot(cx),
9372 cx,
9373 )),
9374 cx,
9375 );
9376 let editor_settings = EditorSettings::get_global(cx);
9377 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9378 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9379 cx.notify();
9380 }
9381
9382 pub fn set_searchable(&mut self, searchable: bool) {
9383 self.searchable = searchable;
9384 }
9385
9386 pub fn searchable(&self) -> bool {
9387 self.searchable
9388 }
9389
9390 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9391 self.open_excerpts_common(true, cx)
9392 }
9393
9394 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9395 self.open_excerpts_common(false, cx)
9396 }
9397
9398 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9399 let buffer = self.buffer.read(cx);
9400 if buffer.is_singleton() {
9401 cx.propagate();
9402 return;
9403 }
9404
9405 let Some(workspace) = self.workspace() else {
9406 cx.propagate();
9407 return;
9408 };
9409
9410 let mut new_selections_by_buffer = HashMap::default();
9411 for selection in self.selections.all::<usize>(cx) {
9412 for (buffer, mut range, _) in
9413 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9414 {
9415 if selection.reversed {
9416 mem::swap(&mut range.start, &mut range.end);
9417 }
9418 new_selections_by_buffer
9419 .entry(buffer)
9420 .or_insert(Vec::new())
9421 .push(range)
9422 }
9423 }
9424
9425 // We defer the pane interaction because we ourselves are a workspace item
9426 // and activating a new item causes the pane to call a method on us reentrantly,
9427 // which panics if we're on the stack.
9428 cx.window_context().defer(move |cx| {
9429 workspace.update(cx, |workspace, cx| {
9430 let pane = if split {
9431 workspace.adjacent_pane(cx)
9432 } else {
9433 workspace.active_pane().clone()
9434 };
9435
9436 for (buffer, ranges) in new_selections_by_buffer {
9437 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9438 editor.update(cx, |editor, cx| {
9439 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9440 s.select_ranges(ranges);
9441 });
9442 });
9443 }
9444 })
9445 });
9446 }
9447
9448 fn jump(
9449 &mut self,
9450 path: ProjectPath,
9451 position: Point,
9452 anchor: language::Anchor,
9453 cx: &mut ViewContext<Self>,
9454 ) {
9455 let workspace = self.workspace();
9456 cx.spawn(|_, mut cx| async move {
9457 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9458 let editor = workspace.update(&mut cx, |workspace, cx| {
9459 workspace.open_path(path, None, true, cx)
9460 })?;
9461 let editor = editor
9462 .await?
9463 .downcast::<Editor>()
9464 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9465 .downgrade();
9466 editor.update(&mut cx, |editor, cx| {
9467 let buffer = editor
9468 .buffer()
9469 .read(cx)
9470 .as_singleton()
9471 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9472 let buffer = buffer.read(cx);
9473 let cursor = if buffer.can_resolve(&anchor) {
9474 language::ToPoint::to_point(&anchor, buffer)
9475 } else {
9476 buffer.clip_point(position, Bias::Left)
9477 };
9478
9479 let nav_history = editor.nav_history.take();
9480 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9481 s.select_ranges([cursor..cursor]);
9482 });
9483 editor.nav_history = nav_history;
9484
9485 anyhow::Ok(())
9486 })??;
9487
9488 anyhow::Ok(())
9489 })
9490 .detach_and_log_err(cx);
9491 }
9492
9493 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9494 let snapshot = self.buffer.read(cx).read(cx);
9495 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9496 Some(
9497 ranges
9498 .iter()
9499 .map(move |range| {
9500 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9501 })
9502 .collect(),
9503 )
9504 }
9505
9506 fn selection_replacement_ranges(
9507 &self,
9508 range: Range<OffsetUtf16>,
9509 cx: &AppContext,
9510 ) -> Vec<Range<OffsetUtf16>> {
9511 let selections = self.selections.all::<OffsetUtf16>(cx);
9512 let newest_selection = selections
9513 .iter()
9514 .max_by_key(|selection| selection.id)
9515 .unwrap();
9516 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9517 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9518 let snapshot = self.buffer.read(cx).read(cx);
9519 selections
9520 .into_iter()
9521 .map(|mut selection| {
9522 selection.start.0 =
9523 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9524 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9525 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9526 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9527 })
9528 .collect()
9529 }
9530
9531 fn report_editor_event(
9532 &self,
9533 operation: &'static str,
9534 file_extension: Option<String>,
9535 cx: &AppContext,
9536 ) {
9537 if cfg!(any(test, feature = "test-support")) {
9538 return;
9539 }
9540
9541 let Some(project) = &self.project else { return };
9542
9543 // If None, we are in a file without an extension
9544 let file = self
9545 .buffer
9546 .read(cx)
9547 .as_singleton()
9548 .and_then(|b| b.read(cx).file());
9549 let file_extension = file_extension.or(file
9550 .as_ref()
9551 .and_then(|file| Path::new(file.file_name(cx)).extension())
9552 .and_then(|e| e.to_str())
9553 .map(|a| a.to_string()));
9554
9555 let vim_mode = cx
9556 .global::<SettingsStore>()
9557 .raw_user_settings()
9558 .get("vim_mode")
9559 == Some(&serde_json::Value::Bool(true));
9560 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9561 let copilot_enabled_for_language = self
9562 .buffer
9563 .read(cx)
9564 .settings_at(0, cx)
9565 .show_copilot_suggestions;
9566
9567 let telemetry = project.read(cx).client().telemetry().clone();
9568 telemetry.report_editor_event(
9569 file_extension,
9570 vim_mode,
9571 operation,
9572 copilot_enabled,
9573 copilot_enabled_for_language,
9574 )
9575 }
9576
9577 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9578 /// with each line being an array of {text, highlight} objects.
9579 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9580 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9581 return;
9582 };
9583
9584 #[derive(Serialize)]
9585 struct Chunk<'a> {
9586 text: String,
9587 highlight: Option<&'a str>,
9588 }
9589
9590 let snapshot = buffer.read(cx).snapshot();
9591 let range = self
9592 .selected_text_range(cx)
9593 .and_then(|selected_range| {
9594 if selected_range.is_empty() {
9595 None
9596 } else {
9597 Some(selected_range)
9598 }
9599 })
9600 .unwrap_or_else(|| 0..snapshot.len());
9601
9602 let chunks = snapshot.chunks(range, true);
9603 let mut lines = Vec::new();
9604 let mut line: VecDeque<Chunk> = VecDeque::new();
9605
9606 let Some(style) = self.style.as_ref() else {
9607 return;
9608 };
9609
9610 for chunk in chunks {
9611 let highlight = chunk
9612 .syntax_highlight_id
9613 .and_then(|id| id.name(&style.syntax));
9614 let mut chunk_lines = chunk.text.split('\n').peekable();
9615 while let Some(text) = chunk_lines.next() {
9616 let mut merged_with_last_token = false;
9617 if let Some(last_token) = line.back_mut() {
9618 if last_token.highlight == highlight {
9619 last_token.text.push_str(text);
9620 merged_with_last_token = true;
9621 }
9622 }
9623
9624 if !merged_with_last_token {
9625 line.push_back(Chunk {
9626 text: text.into(),
9627 highlight,
9628 });
9629 }
9630
9631 if chunk_lines.peek().is_some() {
9632 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9633 line.pop_front();
9634 }
9635 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9636 line.pop_back();
9637 }
9638
9639 lines.push(mem::take(&mut line));
9640 }
9641 }
9642 }
9643
9644 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9645 return;
9646 };
9647 cx.write_to_clipboard(ClipboardItem::new(lines));
9648 }
9649
9650 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9651 &self.inlay_hint_cache
9652 }
9653
9654 pub fn replay_insert_event(
9655 &mut self,
9656 text: &str,
9657 relative_utf16_range: Option<Range<isize>>,
9658 cx: &mut ViewContext<Self>,
9659 ) {
9660 if !self.input_enabled {
9661 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9662 return;
9663 }
9664 if let Some(relative_utf16_range) = relative_utf16_range {
9665 let selections = self.selections.all::<OffsetUtf16>(cx);
9666 self.change_selections(None, cx, |s| {
9667 let new_ranges = selections.into_iter().map(|range| {
9668 let start = OffsetUtf16(
9669 range
9670 .head()
9671 .0
9672 .saturating_add_signed(relative_utf16_range.start),
9673 );
9674 let end = OffsetUtf16(
9675 range
9676 .head()
9677 .0
9678 .saturating_add_signed(relative_utf16_range.end),
9679 );
9680 start..end
9681 });
9682 s.select_ranges(new_ranges);
9683 });
9684 }
9685
9686 self.handle_input(text, cx);
9687 }
9688
9689 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9690 let Some(project) = self.project.as_ref() else {
9691 return false;
9692 };
9693 let project = project.read(cx);
9694
9695 let mut supports = false;
9696 self.buffer().read(cx).for_each_buffer(|buffer| {
9697 if !supports {
9698 supports = project
9699 .language_servers_for_buffer(buffer.read(cx), cx)
9700 .any(
9701 |(_, server)| match server.capabilities().inlay_hint_provider {
9702 Some(lsp::OneOf::Left(enabled)) => enabled,
9703 Some(lsp::OneOf::Right(_)) => true,
9704 None => false,
9705 },
9706 )
9707 }
9708 });
9709 supports
9710 }
9711
9712 pub fn focus(&self, cx: &mut WindowContext) {
9713 cx.focus(&self.focus_handle)
9714 }
9715
9716 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9717 self.focus_handle.is_focused(cx)
9718 }
9719
9720 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9721 cx.emit(EditorEvent::Focused);
9722
9723 if let Some(rename) = self.pending_rename.as_ref() {
9724 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9725 cx.focus(&rename_editor_focus_handle);
9726 } else {
9727 self.blink_manager.update(cx, BlinkManager::enable);
9728 self.show_cursor_names(cx);
9729 self.buffer.update(cx, |buffer, cx| {
9730 buffer.finalize_last_transaction(cx);
9731 if self.leader_peer_id.is_none() {
9732 buffer.set_active_selections(
9733 &self.selections.disjoint_anchors(),
9734 self.selections.line_mode,
9735 self.cursor_shape,
9736 cx,
9737 );
9738 }
9739 });
9740 }
9741 }
9742
9743 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9744 self.blink_manager.update(cx, BlinkManager::disable);
9745 self.buffer
9746 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9747 self.hide_context_menu(cx);
9748 hide_hover(self, cx);
9749 cx.emit(EditorEvent::Blurred);
9750 cx.notify();
9751 }
9752
9753 pub fn register_action<A: Action>(
9754 &mut self,
9755 listener: impl Fn(&A, &mut WindowContext) + 'static,
9756 ) -> &mut Self {
9757 let listener = Arc::new(listener);
9758
9759 self.editor_actions.push(Box::new(move |cx| {
9760 let _view = cx.view().clone();
9761 let cx = cx.window_context();
9762 let listener = listener.clone();
9763 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9764 let action = action.downcast_ref().unwrap();
9765 if phase == DispatchPhase::Bubble {
9766 listener(action, cx)
9767 }
9768 })
9769 }));
9770 self
9771 }
9772}
9773
9774pub trait CollaborationHub {
9775 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9776 fn user_participant_indices<'a>(
9777 &self,
9778 cx: &'a AppContext,
9779 ) -> &'a HashMap<u64, ParticipantIndex>;
9780 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9781}
9782
9783impl CollaborationHub for Model<Project> {
9784 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9785 self.read(cx).collaborators()
9786 }
9787
9788 fn user_participant_indices<'a>(
9789 &self,
9790 cx: &'a AppContext,
9791 ) -> &'a HashMap<u64, ParticipantIndex> {
9792 self.read(cx).user_store().read(cx).participant_indices()
9793 }
9794
9795 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9796 let this = self.read(cx);
9797 let user_ids = this.collaborators().values().map(|c| c.user_id);
9798 this.user_store().read_with(cx, |user_store, cx| {
9799 user_store.participant_names(user_ids, cx)
9800 })
9801 }
9802}
9803
9804pub trait CompletionProvider {
9805 fn completions(
9806 &self,
9807 buffer: &Model<Buffer>,
9808 buffer_position: text::Anchor,
9809 cx: &mut ViewContext<Editor>,
9810 ) -> Task<Result<Vec<Completion>>>;
9811
9812 fn resolve_completions(
9813 &self,
9814 completion_indices: Vec<usize>,
9815 completions: Arc<RwLock<Box<[Completion]>>>,
9816 cx: &mut ViewContext<Editor>,
9817 ) -> Task<Result<bool>>;
9818
9819 fn apply_additional_edits_for_completion(
9820 &self,
9821 buffer: Model<Buffer>,
9822 completion: Completion,
9823 push_to_history: bool,
9824 cx: &mut ViewContext<Editor>,
9825 ) -> Task<Result<Option<language::Transaction>>>;
9826}
9827
9828impl CompletionProvider for Model<Project> {
9829 fn completions(
9830 &self,
9831 buffer: &Model<Buffer>,
9832 buffer_position: text::Anchor,
9833 cx: &mut ViewContext<Editor>,
9834 ) -> Task<Result<Vec<Completion>>> {
9835 self.update(cx, |project, cx| {
9836 project.completions(&buffer, buffer_position, cx)
9837 })
9838 }
9839
9840 fn resolve_completions(
9841 &self,
9842 completion_indices: Vec<usize>,
9843 completions: Arc<RwLock<Box<[Completion]>>>,
9844 cx: &mut ViewContext<Editor>,
9845 ) -> Task<Result<bool>> {
9846 self.update(cx, |project, cx| {
9847 project.resolve_completions(completion_indices, completions, cx)
9848 })
9849 }
9850
9851 fn apply_additional_edits_for_completion(
9852 &self,
9853 buffer: Model<Buffer>,
9854 completion: Completion,
9855 push_to_history: bool,
9856 cx: &mut ViewContext<Editor>,
9857 ) -> Task<Result<Option<language::Transaction>>> {
9858 self.update(cx, |project, cx| {
9859 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9860 })
9861 }
9862}
9863
9864fn inlay_hint_settings(
9865 location: Anchor,
9866 snapshot: &MultiBufferSnapshot,
9867 cx: &mut ViewContext<'_, Editor>,
9868) -> InlayHintSettings {
9869 let file = snapshot.file_at(location);
9870 let language = snapshot.language_at(location);
9871 let settings = all_language_settings(file, cx);
9872 settings
9873 .language(language.map(|l| l.name()).as_deref())
9874 .inlay_hints
9875}
9876
9877fn consume_contiguous_rows(
9878 contiguous_row_selections: &mut Vec<Selection<Point>>,
9879 selection: &Selection<Point>,
9880 display_map: &DisplaySnapshot,
9881 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9882) -> (u32, u32) {
9883 contiguous_row_selections.push(selection.clone());
9884 let start_row = selection.start.row;
9885 let mut end_row = ending_row(selection, display_map);
9886
9887 while let Some(next_selection) = selections.peek() {
9888 if next_selection.start.row <= end_row {
9889 end_row = ending_row(next_selection, display_map);
9890 contiguous_row_selections.push(selections.next().unwrap().clone());
9891 } else {
9892 break;
9893 }
9894 }
9895 (start_row, end_row)
9896}
9897
9898fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9899 if next_selection.end.column > 0 || next_selection.is_empty() {
9900 display_map.next_line_boundary(next_selection.end).0.row + 1
9901 } else {
9902 next_selection.end.row
9903 }
9904}
9905
9906impl EditorSnapshot {
9907 pub fn remote_selections_in_range<'a>(
9908 &'a self,
9909 range: &'a Range<Anchor>,
9910 collaboration_hub: &dyn CollaborationHub,
9911 cx: &'a AppContext,
9912 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9913 let participant_names = collaboration_hub.user_names(cx);
9914 let participant_indices = collaboration_hub.user_participant_indices(cx);
9915 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9916 let collaborators_by_replica_id = collaborators_by_peer_id
9917 .iter()
9918 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9919 .collect::<HashMap<_, _>>();
9920 self.buffer_snapshot
9921 .remote_selections_in_range(range)
9922 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9923 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9924 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9925 let user_name = participant_names.get(&collaborator.user_id).cloned();
9926 Some(RemoteSelection {
9927 replica_id,
9928 selection,
9929 cursor_shape,
9930 line_mode,
9931 participant_index,
9932 peer_id: collaborator.peer_id,
9933 user_name,
9934 })
9935 })
9936 }
9937
9938 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9939 self.display_snapshot.buffer_snapshot.language_at(position)
9940 }
9941
9942 pub fn is_focused(&self) -> bool {
9943 self.is_focused
9944 }
9945
9946 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9947 self.placeholder_text.as_ref()
9948 }
9949
9950 pub fn scroll_position(&self) -> gpui::Point<f32> {
9951 self.scroll_anchor.scroll_position(&self.display_snapshot)
9952 }
9953
9954 pub fn gutter_dimensions(
9955 &self,
9956 font_id: FontId,
9957 font_size: Pixels,
9958 em_width: Pixels,
9959 max_line_number_width: Pixels,
9960 cx: &AppContext,
9961 ) -> GutterDimensions {
9962 if !self.show_gutter {
9963 return GutterDimensions::default();
9964 }
9965 let descent = cx.text_system().descent(font_id, font_size);
9966
9967 let show_git_gutter = matches!(
9968 ProjectSettings::get_global(cx).git.git_gutter,
9969 Some(GitGutterSetting::TrackedFiles)
9970 );
9971 let gutter_settings = EditorSettings::get_global(cx).gutter;
9972
9973 let line_gutter_width = if gutter_settings.line_numbers {
9974 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9975 let min_width_for_number_on_gutter = em_width * 4.0;
9976 max_line_number_width.max(min_width_for_number_on_gutter)
9977 } else {
9978 0.0.into()
9979 };
9980
9981 let left_padding = if gutter_settings.code_actions {
9982 em_width * 3.0
9983 } else if show_git_gutter && gutter_settings.line_numbers {
9984 em_width * 2.0
9985 } else if show_git_gutter || gutter_settings.line_numbers {
9986 em_width
9987 } else {
9988 px(0.)
9989 };
9990
9991 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
9992 em_width * 4.0
9993 } else if gutter_settings.folds {
9994 em_width * 3.0
9995 } else if gutter_settings.line_numbers {
9996 em_width
9997 } else {
9998 px(0.)
9999 };
10000
10001 GutterDimensions {
10002 left_padding,
10003 right_padding,
10004 width: line_gutter_width + left_padding + right_padding,
10005 margin: -descent,
10006 }
10007 }
10008}
10009
10010impl Deref for EditorSnapshot {
10011 type Target = DisplaySnapshot;
10012
10013 fn deref(&self) -> &Self::Target {
10014 &self.display_snapshot
10015 }
10016}
10017
10018#[derive(Clone, Debug, PartialEq, Eq)]
10019pub enum EditorEvent {
10020 InputIgnored {
10021 text: Arc<str>,
10022 },
10023 InputHandled {
10024 utf16_range_to_replace: Option<Range<isize>>,
10025 text: Arc<str>,
10026 },
10027 ExcerptsAdded {
10028 buffer: Model<Buffer>,
10029 predecessor: ExcerptId,
10030 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10031 },
10032 ExcerptsRemoved {
10033 ids: Vec<ExcerptId>,
10034 },
10035 BufferEdited,
10036 Edited,
10037 Reparsed,
10038 Focused,
10039 Blurred,
10040 DirtyChanged,
10041 Saved,
10042 TitleChanged,
10043 DiffBaseChanged,
10044 SelectionsChanged {
10045 local: bool,
10046 },
10047 ScrollPositionChanged {
10048 local: bool,
10049 autoscroll: bool,
10050 },
10051 Closed,
10052 TransactionUndone {
10053 transaction_id: clock::Lamport,
10054 },
10055 TransactionBegun {
10056 transaction_id: clock::Lamport,
10057 },
10058}
10059
10060impl EventEmitter<EditorEvent> for Editor {}
10061
10062impl FocusableView for Editor {
10063 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10064 self.focus_handle.clone()
10065 }
10066}
10067
10068impl Render for Editor {
10069 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10070 let settings = ThemeSettings::get_global(cx);
10071 let text_style = match self.mode {
10072 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10073 color: cx.theme().colors().editor_foreground,
10074 font_family: settings.ui_font.family.clone(),
10075 font_features: settings.ui_font.features,
10076 font_size: rems(0.875).into(),
10077 font_weight: FontWeight::NORMAL,
10078 font_style: FontStyle::Normal,
10079 line_height: relative(settings.buffer_line_height.value()),
10080 background_color: None,
10081 underline: None,
10082 strikethrough: None,
10083 white_space: WhiteSpace::Normal,
10084 },
10085
10086 EditorMode::Full => TextStyle {
10087 color: cx.theme().colors().editor_foreground,
10088 font_family: settings.buffer_font.family.clone(),
10089 font_features: settings.buffer_font.features,
10090 font_size: settings.buffer_font_size(cx).into(),
10091 font_weight: FontWeight::NORMAL,
10092 font_style: FontStyle::Normal,
10093 line_height: relative(settings.buffer_line_height.value()),
10094 background_color: None,
10095 underline: None,
10096 strikethrough: None,
10097 white_space: WhiteSpace::Normal,
10098 },
10099 };
10100
10101 let background = match self.mode {
10102 EditorMode::SingleLine => cx.theme().system().transparent,
10103 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10104 EditorMode::Full => cx.theme().colors().editor_background,
10105 };
10106
10107 EditorElement::new(
10108 cx.view(),
10109 EditorStyle {
10110 background,
10111 local_player: cx.theme().players().local(),
10112 text: text_style,
10113 scrollbar_width: px(12.),
10114 syntax: cx.theme().syntax().clone(),
10115 status: cx.theme().status().clone(),
10116 inlay_hints_style: HighlightStyle {
10117 color: Some(cx.theme().status().hint),
10118 ..HighlightStyle::default()
10119 },
10120 suggestions_style: HighlightStyle {
10121 color: Some(cx.theme().status().predictive),
10122 ..HighlightStyle::default()
10123 },
10124 },
10125 )
10126 }
10127}
10128
10129impl ViewInputHandler for Editor {
10130 fn text_for_range(
10131 &mut self,
10132 range_utf16: Range<usize>,
10133 cx: &mut ViewContext<Self>,
10134 ) -> Option<String> {
10135 Some(
10136 self.buffer
10137 .read(cx)
10138 .read(cx)
10139 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10140 .collect(),
10141 )
10142 }
10143
10144 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10145 // Prevent the IME menu from appearing when holding down an alphabetic key
10146 // while input is disabled.
10147 if !self.input_enabled {
10148 return None;
10149 }
10150
10151 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10152 Some(range.start.0..range.end.0)
10153 }
10154
10155 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10156 let snapshot = self.buffer.read(cx).read(cx);
10157 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10158 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10159 }
10160
10161 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10162 self.clear_highlights::<InputComposition>(cx);
10163 self.ime_transaction.take();
10164 }
10165
10166 fn replace_text_in_range(
10167 &mut self,
10168 range_utf16: Option<Range<usize>>,
10169 text: &str,
10170 cx: &mut ViewContext<Self>,
10171 ) {
10172 if !self.input_enabled {
10173 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10174 return;
10175 }
10176
10177 self.transact(cx, |this, cx| {
10178 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10179 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10180 Some(this.selection_replacement_ranges(range_utf16, cx))
10181 } else {
10182 this.marked_text_ranges(cx)
10183 };
10184
10185 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10186 let newest_selection_id = this.selections.newest_anchor().id;
10187 this.selections
10188 .all::<OffsetUtf16>(cx)
10189 .iter()
10190 .zip(ranges_to_replace.iter())
10191 .find_map(|(selection, range)| {
10192 if selection.id == newest_selection_id {
10193 Some(
10194 (range.start.0 as isize - selection.head().0 as isize)
10195 ..(range.end.0 as isize - selection.head().0 as isize),
10196 )
10197 } else {
10198 None
10199 }
10200 })
10201 });
10202
10203 cx.emit(EditorEvent::InputHandled {
10204 utf16_range_to_replace: range_to_replace,
10205 text: text.into(),
10206 });
10207
10208 if let Some(new_selected_ranges) = new_selected_ranges {
10209 this.change_selections(None, cx, |selections| {
10210 selections.select_ranges(new_selected_ranges)
10211 });
10212 this.backspace(&Default::default(), cx);
10213 }
10214
10215 this.handle_input(text, cx);
10216 });
10217
10218 if let Some(transaction) = self.ime_transaction {
10219 self.buffer.update(cx, |buffer, cx| {
10220 buffer.group_until_transaction(transaction, cx);
10221 });
10222 }
10223
10224 self.unmark_text(cx);
10225 }
10226
10227 fn replace_and_mark_text_in_range(
10228 &mut self,
10229 range_utf16: Option<Range<usize>>,
10230 text: &str,
10231 new_selected_range_utf16: Option<Range<usize>>,
10232 cx: &mut ViewContext<Self>,
10233 ) {
10234 if !self.input_enabled {
10235 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10236 return;
10237 }
10238
10239 let transaction = self.transact(cx, |this, cx| {
10240 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10241 let snapshot = this.buffer.read(cx).read(cx);
10242 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10243 for marked_range in &mut marked_ranges {
10244 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10245 marked_range.start.0 += relative_range_utf16.start;
10246 marked_range.start =
10247 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10248 marked_range.end =
10249 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10250 }
10251 }
10252 Some(marked_ranges)
10253 } else if let Some(range_utf16) = range_utf16 {
10254 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10255 Some(this.selection_replacement_ranges(range_utf16, cx))
10256 } else {
10257 None
10258 };
10259
10260 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10261 let newest_selection_id = this.selections.newest_anchor().id;
10262 this.selections
10263 .all::<OffsetUtf16>(cx)
10264 .iter()
10265 .zip(ranges_to_replace.iter())
10266 .find_map(|(selection, range)| {
10267 if selection.id == newest_selection_id {
10268 Some(
10269 (range.start.0 as isize - selection.head().0 as isize)
10270 ..(range.end.0 as isize - selection.head().0 as isize),
10271 )
10272 } else {
10273 None
10274 }
10275 })
10276 });
10277
10278 cx.emit(EditorEvent::InputHandled {
10279 utf16_range_to_replace: range_to_replace,
10280 text: text.into(),
10281 });
10282
10283 if let Some(ranges) = ranges_to_replace {
10284 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10285 }
10286
10287 let marked_ranges = {
10288 let snapshot = this.buffer.read(cx).read(cx);
10289 this.selections
10290 .disjoint_anchors()
10291 .iter()
10292 .map(|selection| {
10293 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10294 })
10295 .collect::<Vec<_>>()
10296 };
10297
10298 if text.is_empty() {
10299 this.unmark_text(cx);
10300 } else {
10301 this.highlight_text::<InputComposition>(
10302 marked_ranges.clone(),
10303 HighlightStyle {
10304 underline: Some(UnderlineStyle {
10305 thickness: px(1.),
10306 color: None,
10307 wavy: false,
10308 }),
10309 ..Default::default()
10310 },
10311 cx,
10312 );
10313 }
10314
10315 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10316 let use_autoclose = this.use_autoclose;
10317 this.set_use_autoclose(false);
10318 this.handle_input(text, cx);
10319 this.set_use_autoclose(use_autoclose);
10320
10321 if let Some(new_selected_range) = new_selected_range_utf16 {
10322 let snapshot = this.buffer.read(cx).read(cx);
10323 let new_selected_ranges = marked_ranges
10324 .into_iter()
10325 .map(|marked_range| {
10326 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10327 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10328 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10329 snapshot.clip_offset_utf16(new_start, Bias::Left)
10330 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10331 })
10332 .collect::<Vec<_>>();
10333
10334 drop(snapshot);
10335 this.change_selections(None, cx, |selections| {
10336 selections.select_ranges(new_selected_ranges)
10337 });
10338 }
10339 });
10340
10341 self.ime_transaction = self.ime_transaction.or(transaction);
10342 if let Some(transaction) = self.ime_transaction {
10343 self.buffer.update(cx, |buffer, cx| {
10344 buffer.group_until_transaction(transaction, cx);
10345 });
10346 }
10347
10348 if self.text_highlights::<InputComposition>(cx).is_none() {
10349 self.ime_transaction.take();
10350 }
10351 }
10352
10353 fn bounds_for_range(
10354 &mut self,
10355 range_utf16: Range<usize>,
10356 element_bounds: gpui::Bounds<Pixels>,
10357 cx: &mut ViewContext<Self>,
10358 ) -> Option<gpui::Bounds<Pixels>> {
10359 let text_layout_details = self.text_layout_details(cx);
10360 let style = &text_layout_details.editor_style;
10361 let font_id = cx.text_system().resolve_font(&style.text.font());
10362 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10363 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10364 let em_width = cx
10365 .text_system()
10366 .typographic_bounds(font_id, font_size, 'm')
10367 .unwrap()
10368 .size
10369 .width;
10370
10371 let snapshot = self.snapshot(cx);
10372 let scroll_position = snapshot.scroll_position();
10373 let scroll_left = scroll_position.x * em_width;
10374
10375 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10376 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10377 + self.gutter_width;
10378 let y = line_height * (start.row() as f32 - scroll_position.y);
10379
10380 Some(Bounds {
10381 origin: element_bounds.origin + point(x, y),
10382 size: size(em_width, line_height),
10383 })
10384 }
10385}
10386
10387trait SelectionExt {
10388 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10389 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10390 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10391 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10392 -> Range<u32>;
10393}
10394
10395impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10396 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10397 let start = self.start.to_point(buffer);
10398 let end = self.end.to_point(buffer);
10399 if self.reversed {
10400 end..start
10401 } else {
10402 start..end
10403 }
10404 }
10405
10406 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10407 let start = self.start.to_offset(buffer);
10408 let end = self.end.to_offset(buffer);
10409 if self.reversed {
10410 end..start
10411 } else {
10412 start..end
10413 }
10414 }
10415
10416 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10417 let start = self
10418 .start
10419 .to_point(&map.buffer_snapshot)
10420 .to_display_point(map);
10421 let end = self
10422 .end
10423 .to_point(&map.buffer_snapshot)
10424 .to_display_point(map);
10425 if self.reversed {
10426 end..start
10427 } else {
10428 start..end
10429 }
10430 }
10431
10432 fn spanned_rows(
10433 &self,
10434 include_end_if_at_line_start: bool,
10435 map: &DisplaySnapshot,
10436 ) -> Range<u32> {
10437 let start = self.start.to_point(&map.buffer_snapshot);
10438 let mut end = self.end.to_point(&map.buffer_snapshot);
10439 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10440 end.row -= 1;
10441 }
10442
10443 let buffer_start = map.prev_line_boundary(start).0;
10444 let buffer_end = map.next_line_boundary(end).0;
10445 buffer_start.row..buffer_end.row + 1
10446 }
10447}
10448
10449impl<T: InvalidationRegion> InvalidationStack<T> {
10450 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10451 where
10452 S: Clone + ToOffset,
10453 {
10454 while let Some(region) = self.last() {
10455 let all_selections_inside_invalidation_ranges =
10456 if selections.len() == region.ranges().len() {
10457 selections
10458 .iter()
10459 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10460 .all(|(selection, invalidation_range)| {
10461 let head = selection.head().to_offset(buffer);
10462 invalidation_range.start <= head && invalidation_range.end >= head
10463 })
10464 } else {
10465 false
10466 };
10467
10468 if all_selections_inside_invalidation_ranges {
10469 break;
10470 } else {
10471 self.pop();
10472 }
10473 }
10474 }
10475}
10476
10477impl<T> Default for InvalidationStack<T> {
10478 fn default() -> Self {
10479 Self(Default::default())
10480 }
10481}
10482
10483impl<T> Deref for InvalidationStack<T> {
10484 type Target = Vec<T>;
10485
10486 fn deref(&self) -> &Self::Target {
10487 &self.0
10488 }
10489}
10490
10491impl<T> DerefMut for InvalidationStack<T> {
10492 fn deref_mut(&mut self) -> &mut Self::Target {
10493 &mut self.0
10494 }
10495}
10496
10497impl InvalidationRegion for SnippetState {
10498 fn ranges(&self) -> &[Range<Anchor>] {
10499 &self.ranges[self.active_index]
10500 }
10501}
10502
10503pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10504 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10505
10506 Arc::new(move |cx: &mut BlockContext| {
10507 let group_id: SharedString = cx.block_id.to_string().into();
10508
10509 let mut text_style = cx.text_style().clone();
10510 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10511
10512 let multi_line_diagnostic = diagnostic.message.contains('\n');
10513
10514 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10515 if multi_line_diagnostic {
10516 v_flex()
10517 } else {
10518 h_flex()
10519 }
10520 .children(diagnostic.is_primary.then(|| {
10521 IconButton::new(("close-block", block_id), IconName::XCircle)
10522 .icon_color(Color::Muted)
10523 .size(ButtonSize::Compact)
10524 .style(ButtonStyle::Transparent)
10525 .visible_on_hover(group_id.clone())
10526 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10527 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10528 }))
10529 .child(
10530 IconButton::new(("copy-block", block_id), IconName::Copy)
10531 .icon_color(Color::Muted)
10532 .size(ButtonSize::Compact)
10533 .style(ButtonStyle::Transparent)
10534 .visible_on_hover(group_id.clone())
10535 .on_click({
10536 let message = diagnostic.message.clone();
10537 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10538 })
10539 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10540 )
10541 };
10542
10543 let icon_size = buttons(&diagnostic, cx.block_id)
10544 .into_any_element()
10545 .measure(AvailableSpace::min_size(), cx);
10546
10547 h_flex()
10548 .id(cx.block_id)
10549 .group(group_id.clone())
10550 .relative()
10551 .size_full()
10552 .pl(cx.gutter_dimensions.width)
10553 .w(cx.max_width + cx.gutter_dimensions.width)
10554 .child(
10555 div()
10556 .flex()
10557 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
10558 .flex_shrink(),
10559 )
10560 .child(buttons(&diagnostic, cx.block_id))
10561 .child(div().flex().flex_shrink_0().child(
10562 StyledText::new(text_without_backticks.clone()).with_highlights(
10563 &text_style,
10564 code_ranges.iter().map(|range| {
10565 (
10566 range.clone(),
10567 HighlightStyle {
10568 font_weight: Some(FontWeight::BOLD),
10569 ..Default::default()
10570 },
10571 )
10572 }),
10573 ),
10574 ))
10575 .into_any_element()
10576 })
10577}
10578
10579pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10580 let mut text_without_backticks = String::new();
10581 let mut code_ranges = Vec::new();
10582
10583 if let Some(source) = &diagnostic.source {
10584 text_without_backticks.push_str(&source);
10585 code_ranges.push(0..source.len());
10586 text_without_backticks.push_str(": ");
10587 }
10588
10589 let mut prev_offset = 0;
10590 let mut in_code_block = false;
10591 for (ix, _) in diagnostic
10592 .message
10593 .match_indices('`')
10594 .chain([(diagnostic.message.len(), "")])
10595 {
10596 let prev_len = text_without_backticks.len();
10597 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10598 prev_offset = ix + 1;
10599 if in_code_block {
10600 code_ranges.push(prev_len..text_without_backticks.len());
10601 in_code_block = false;
10602 } else {
10603 in_code_block = true;
10604 }
10605 }
10606
10607 (text_without_backticks.into(), code_ranges)
10608}
10609
10610fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10611 match (severity, valid) {
10612 (DiagnosticSeverity::ERROR, true) => colors.error,
10613 (DiagnosticSeverity::ERROR, false) => colors.error,
10614 (DiagnosticSeverity::WARNING, true) => colors.warning,
10615 (DiagnosticSeverity::WARNING, false) => colors.warning,
10616 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10617 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10618 (DiagnosticSeverity::HINT, true) => colors.info,
10619 (DiagnosticSeverity::HINT, false) => colors.info,
10620 _ => colors.ignored,
10621 }
10622}
10623
10624pub fn styled_runs_for_code_label<'a>(
10625 label: &'a CodeLabel,
10626 syntax_theme: &'a theme::SyntaxTheme,
10627) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10628 let fade_out = HighlightStyle {
10629 fade_out: Some(0.35),
10630 ..Default::default()
10631 };
10632
10633 let mut prev_end = label.filter_range.end;
10634 label
10635 .runs
10636 .iter()
10637 .enumerate()
10638 .flat_map(move |(ix, (range, highlight_id))| {
10639 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10640 style
10641 } else {
10642 return Default::default();
10643 };
10644 let mut muted_style = style;
10645 muted_style.highlight(fade_out);
10646
10647 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10648 if range.start >= label.filter_range.end {
10649 if range.start > prev_end {
10650 runs.push((prev_end..range.start, fade_out));
10651 }
10652 runs.push((range.clone(), muted_style));
10653 } else if range.end <= label.filter_range.end {
10654 runs.push((range.clone(), style));
10655 } else {
10656 runs.push((range.start..label.filter_range.end, style));
10657 runs.push((label.filter_range.end..range.end, muted_style));
10658 }
10659 prev_end = cmp::max(prev_end, range.end);
10660
10661 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10662 runs.push((prev_end..label.text.len(), fade_out));
10663 }
10664
10665 runs
10666 })
10667}
10668
10669pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10670 let mut prev_index = 0;
10671 let mut prev_codepoint: Option<char> = None;
10672 text.char_indices()
10673 .chain([(text.len(), '\0')])
10674 .filter_map(move |(index, codepoint)| {
10675 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10676 let is_boundary = index == text.len()
10677 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10678 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10679 if is_boundary {
10680 let chunk = &text[prev_index..index];
10681 prev_index = index;
10682 Some(chunk)
10683 } else {
10684 None
10685 }
10686 })
10687}
10688
10689trait RangeToAnchorExt {
10690 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10691}
10692
10693impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10694 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10695 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10696 }
10697}