1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
92use rand::prelude::*;
93use rpc::proto::*;
94use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
95use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
96use serde::{Deserialize, Serialize};
97use settings::{Settings, SettingsStore};
98use smallvec::SmallVec;
99use snippet::Snippet;
100use std::{
101 any::TypeId,
102 borrow::Cow,
103 cmp::{self, Ordering, Reverse},
104 mem,
105 num::NonZeroU32,
106 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
107 path::Path,
108 sync::Arc,
109 time::{Duration, Instant},
110};
111pub use sum_tree::Bias;
112use sum_tree::TreeMap;
113use text::{BufferId, OffsetUtf16, Rope};
114use theme::{
115 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
116 ThemeColors, ThemeSettings,
117};
118use ui::{
119 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
120 Tooltip,
121};
122use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
123use workspace::Toast;
124use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
125
126const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
127const MAX_LINE_LEN: usize = 1024;
128const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
129const MAX_SELECTION_HISTORY_LEN: usize = 1024;
130const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
131pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
132#[doc(hidden)]
133pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
134#[doc(hidden)]
135pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
136
137pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
138
139pub fn render_parsed_markdown(
140 element_id: impl Into<ElementId>,
141 parsed: &language::ParsedMarkdown,
142 editor_style: &EditorStyle,
143 workspace: Option<WeakView<Workspace>>,
144 cx: &mut ViewContext<Editor>,
145) -> InteractiveText {
146 let code_span_background_color = cx
147 .theme()
148 .colors()
149 .editor_document_highlight_read_background;
150
151 let highlights = gpui::combine_highlights(
152 parsed.highlights.iter().filter_map(|(range, highlight)| {
153 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
154 Some((range.clone(), highlight))
155 }),
156 parsed
157 .regions
158 .iter()
159 .zip(&parsed.region_ranges)
160 .filter_map(|(region, range)| {
161 if region.code {
162 Some((
163 range.clone(),
164 HighlightStyle {
165 background_color: Some(code_span_background_color),
166 ..Default::default()
167 },
168 ))
169 } else {
170 None
171 }
172 }),
173 );
174
175 let mut links = Vec::new();
176 let mut link_ranges = Vec::new();
177 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
178 if let Some(link) = region.link.clone() {
179 links.push(link);
180 link_ranges.push(range.clone());
181 }
182 }
183
184 InteractiveText::new(
185 element_id,
186 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
187 )
188 .on_click(link_ranges, move |clicked_range_ix, cx| {
189 match &links[clicked_range_ix] {
190 markdown::Link::Web { url } => cx.open_url(url),
191 markdown::Link::Path { path } => {
192 if let Some(workspace) = &workspace {
193 _ = workspace.update(cx, |workspace, cx| {
194 workspace.open_abs_path(path.clone(), false, cx).detach();
195 });
196 }
197 }
198 }
199 })
200}
201
202#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
203pub(crate) enum InlayId {
204 Suggestion(usize),
205 Hint(usize),
206}
207
208impl InlayId {
209 fn id(&self) -> usize {
210 match self {
211 Self::Suggestion(id) => *id,
212 Self::Hint(id) => *id,
213 }
214 }
215}
216
217enum DocumentHighlightRead {}
218enum DocumentHighlightWrite {}
219enum InputComposition {}
220
221#[derive(Copy, Clone, PartialEq, Eq)]
222pub enum Direction {
223 Prev,
224 Next,
225}
226
227pub fn init_settings(cx: &mut AppContext) {
228 EditorSettings::register(cx);
229}
230
231pub fn init(cx: &mut AppContext) {
232 init_settings(cx);
233
234 workspace::register_project_item::<Editor>(cx);
235 workspace::register_followable_item::<Editor>(cx);
236 workspace::register_deserializable_item::<Editor>(cx);
237 cx.observe_new_views(
238 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
239 workspace.register_action(Editor::new_file);
240 workspace.register_action(Editor::new_file_in_direction);
241 },
242 )
243 .detach();
244
245 cx.on_action(move |_: &workspace::NewFile, cx| {
246 let app_state = workspace::AppState::global(cx);
247 if let Some(app_state) = app_state.upgrade() {
248 workspace::open_new(&app_state, cx, |workspace, cx| {
249 Editor::new_file(workspace, &Default::default(), cx)
250 })
251 .detach();
252 }
253 });
254 cx.on_action(move |_: &workspace::NewWindow, cx| {
255 let app_state = workspace::AppState::global(cx);
256 if let Some(app_state) = app_state.upgrade() {
257 workspace::open_new(&app_state, cx, |workspace, cx| {
258 Editor::new_file(workspace, &Default::default(), cx)
259 })
260 .detach();
261 }
262 });
263}
264
265trait InvalidationRegion {
266 fn ranges(&self) -> &[Range<Anchor>];
267}
268
269#[derive(Clone, Debug, PartialEq)]
270pub enum SelectPhase {
271 Begin {
272 position: DisplayPoint,
273 add: bool,
274 click_count: usize,
275 },
276 BeginColumnar {
277 position: DisplayPoint,
278 goal_column: u32,
279 },
280 Extend {
281 position: DisplayPoint,
282 click_count: usize,
283 },
284 Update {
285 position: DisplayPoint,
286 goal_column: u32,
287 scroll_delta: gpui::Point<f32>,
288 },
289 End,
290}
291
292#[derive(Clone, Debug)]
293pub(crate) enum SelectMode {
294 Character,
295 Word(Range<Anchor>),
296 Line(Range<Anchor>),
297 All,
298}
299
300#[derive(Copy, Clone, PartialEq, Eq, Debug)]
301pub enum EditorMode {
302 SingleLine,
303 AutoHeight { max_lines: usize },
304 Full,
305}
306
307#[derive(Clone, Debug)]
308pub enum SoftWrap {
309 None,
310 EditorWidth,
311 Column(u32),
312}
313
314#[derive(Clone)]
315pub struct EditorStyle {
316 pub background: Hsla,
317 pub local_player: PlayerColor,
318 pub text: TextStyle,
319 pub scrollbar_width: Pixels,
320 pub syntax: Arc<SyntaxTheme>,
321 pub status: StatusColors,
322 pub inlays_style: HighlightStyle,
323 pub suggestions_style: HighlightStyle,
324}
325
326impl Default for EditorStyle {
327 fn default() -> Self {
328 Self {
329 background: Hsla::default(),
330 local_player: PlayerColor::default(),
331 text: TextStyle::default(),
332 scrollbar_width: Pixels::default(),
333 syntax: Default::default(),
334 // HACK: Status colors don't have a real default.
335 // We should look into removing the status colors from the editor
336 // style and retrieve them directly from the theme.
337 status: StatusColors::dark(),
338 inlays_style: HighlightStyle::default(),
339 suggestions_style: HighlightStyle::default(),
340 }
341 }
342}
343
344type CompletionId = usize;
345
346// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
347// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
348
349type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
350type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
351
352pub struct Editor {
353 handle: WeakView<Self>,
354 focus_handle: FocusHandle,
355 buffer: Model<MultiBuffer>,
356 display_map: Model<DisplayMap>,
357 pub selections: SelectionsCollection,
358 pub scroll_manager: ScrollManager,
359 columnar_selection_tail: Option<Anchor>,
360 add_selections_state: Option<AddSelectionsState>,
361 select_next_state: Option<SelectNextState>,
362 select_prev_state: Option<SelectNextState>,
363 selection_history: SelectionHistory,
364 autoclose_regions: Vec<AutocloseRegion>,
365 snippet_stack: InvalidationStack<SnippetState>,
366 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
367 ime_transaction: Option<TransactionId>,
368 active_diagnostics: Option<ActiveDiagnosticGroup>,
369 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
370 project: Option<Model<Project>>,
371 completion_provider: Option<Box<dyn CompletionProvider>>,
372 collaboration_hub: Option<Box<dyn CollaborationHub>>,
373 blink_manager: Model<BlinkManager>,
374 show_cursor_names: bool,
375 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
376 pub show_local_selections: bool,
377 mode: EditorMode,
378 show_breadcrumbs: bool,
379 show_gutter: bool,
380 show_wrap_guides: Option<bool>,
381 placeholder_text: Option<Arc<str>>,
382 highlighted_rows: Option<Range<u32>>,
383 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
384 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
385 nav_history: Option<ItemNavHistory>,
386 context_menu: RwLock<Option<ContextMenu>>,
387 mouse_context_menu: Option<MouseContextMenu>,
388 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
389 next_completion_id: CompletionId,
390 completion_documentation_pre_resolve_debounce: DebouncedDelay,
391 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
392 code_actions_task: Option<Task<()>>,
393 document_highlights_task: Option<Task<()>>,
394 pending_rename: Option<RenameState>,
395 searchable: bool,
396 cursor_shape: CursorShape,
397 collapse_matches: bool,
398 autoindent_mode: Option<AutoindentMode>,
399 workspace: Option<(WeakView<Workspace>, i64)>,
400 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
401 input_enabled: bool,
402 read_only: bool,
403 leader_peer_id: Option<PeerId>,
404 remote_id: Option<ViewId>,
405 hover_state: HoverState,
406 gutter_hovered: bool,
407 hovered_link_state: Option<HoveredLinkState>,
408 copilot_state: CopilotState,
409 inlay_hint_cache: InlayHintCache,
410 next_inlay_id: usize,
411 _subscriptions: Vec<Subscription>,
412 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
413 gutter_width: Pixels,
414 style: Option<EditorStyle>,
415 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
416 show_copilot_suggestions: bool,
417 use_autoclose: bool,
418 custom_context_menu: Option<
419 Box<
420 dyn 'static
421 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
422 >,
423 >,
424}
425
426pub struct EditorSnapshot {
427 pub mode: EditorMode,
428 show_gutter: bool,
429 pub display_snapshot: DisplaySnapshot,
430 pub placeholder_text: Option<Arc<str>>,
431 is_focused: bool,
432 scroll_anchor: ScrollAnchor,
433 ongoing_scroll: OngoingScroll,
434}
435
436pub struct GutterDimensions {
437 pub padding: Pixels,
438 pub width: Pixels,
439 pub margin: Pixels,
440}
441
442impl Default for GutterDimensions {
443 fn default() -> Self {
444 Self {
445 padding: Pixels::ZERO,
446 width: Pixels::ZERO,
447 margin: Pixels::ZERO,
448 }
449 }
450}
451
452#[derive(Debug)]
453pub struct RemoteSelection {
454 pub replica_id: ReplicaId,
455 pub selection: Selection<Anchor>,
456 pub cursor_shape: CursorShape,
457 pub peer_id: PeerId,
458 pub line_mode: bool,
459 pub participant_index: Option<ParticipantIndex>,
460 pub user_name: Option<SharedString>,
461}
462
463#[derive(Clone, Debug)]
464struct SelectionHistoryEntry {
465 selections: Arc<[Selection<Anchor>]>,
466 select_next_state: Option<SelectNextState>,
467 select_prev_state: Option<SelectNextState>,
468 add_selections_state: Option<AddSelectionsState>,
469}
470
471enum SelectionHistoryMode {
472 Normal,
473 Undoing,
474 Redoing,
475}
476
477#[derive(Clone, PartialEq, Eq, Hash)]
478struct HoveredCursor {
479 replica_id: u16,
480 selection_id: usize,
481}
482
483impl Default for SelectionHistoryMode {
484 fn default() -> Self {
485 Self::Normal
486 }
487}
488
489#[derive(Default)]
490struct SelectionHistory {
491 #[allow(clippy::type_complexity)]
492 selections_by_transaction:
493 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
494 mode: SelectionHistoryMode,
495 undo_stack: VecDeque<SelectionHistoryEntry>,
496 redo_stack: VecDeque<SelectionHistoryEntry>,
497}
498
499impl SelectionHistory {
500 fn insert_transaction(
501 &mut self,
502 transaction_id: TransactionId,
503 selections: Arc<[Selection<Anchor>]>,
504 ) {
505 self.selections_by_transaction
506 .insert(transaction_id, (selections, None));
507 }
508
509 #[allow(clippy::type_complexity)]
510 fn transaction(
511 &self,
512 transaction_id: TransactionId,
513 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
514 self.selections_by_transaction.get(&transaction_id)
515 }
516
517 #[allow(clippy::type_complexity)]
518 fn transaction_mut(
519 &mut self,
520 transaction_id: TransactionId,
521 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
522 self.selections_by_transaction.get_mut(&transaction_id)
523 }
524
525 fn push(&mut self, entry: SelectionHistoryEntry) {
526 if !entry.selections.is_empty() {
527 match self.mode {
528 SelectionHistoryMode::Normal => {
529 self.push_undo(entry);
530 self.redo_stack.clear();
531 }
532 SelectionHistoryMode::Undoing => self.push_redo(entry),
533 SelectionHistoryMode::Redoing => self.push_undo(entry),
534 }
535 }
536 }
537
538 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
539 if self
540 .undo_stack
541 .back()
542 .map_or(true, |e| e.selections != entry.selections)
543 {
544 self.undo_stack.push_back(entry);
545 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
546 self.undo_stack.pop_front();
547 }
548 }
549 }
550
551 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
552 if self
553 .redo_stack
554 .back()
555 .map_or(true, |e| e.selections != entry.selections)
556 {
557 self.redo_stack.push_back(entry);
558 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
559 self.redo_stack.pop_front();
560 }
561 }
562 }
563}
564
565#[derive(Clone, Debug)]
566struct AddSelectionsState {
567 above: bool,
568 stack: Vec<usize>,
569}
570
571#[derive(Clone)]
572struct SelectNextState {
573 query: AhoCorasick,
574 wordwise: bool,
575 done: bool,
576}
577
578impl std::fmt::Debug for SelectNextState {
579 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
580 f.debug_struct(std::any::type_name::<Self>())
581 .field("wordwise", &self.wordwise)
582 .field("done", &self.done)
583 .finish()
584 }
585}
586
587#[derive(Debug)]
588struct AutocloseRegion {
589 selection_id: usize,
590 range: Range<Anchor>,
591 pair: BracketPair,
592}
593
594#[derive(Debug)]
595struct SnippetState {
596 ranges: Vec<Vec<Range<Anchor>>>,
597 active_index: usize,
598}
599
600#[doc(hidden)]
601pub struct RenameState {
602 pub range: Range<Anchor>,
603 pub old_name: Arc<str>,
604 pub editor: View<Editor>,
605 block_id: BlockId,
606}
607
608struct InvalidationStack<T>(Vec<T>);
609
610enum ContextMenu {
611 Completions(CompletionsMenu),
612 CodeActions(CodeActionsMenu),
613}
614
615impl ContextMenu {
616 fn select_first(
617 &mut self,
618 project: Option<&Model<Project>>,
619 cx: &mut ViewContext<Editor>,
620 ) -> bool {
621 if self.visible() {
622 match self {
623 ContextMenu::Completions(menu) => menu.select_first(project, cx),
624 ContextMenu::CodeActions(menu) => menu.select_first(cx),
625 }
626 true
627 } else {
628 false
629 }
630 }
631
632 fn select_prev(
633 &mut self,
634 project: Option<&Model<Project>>,
635 cx: &mut ViewContext<Editor>,
636 ) -> bool {
637 if self.visible() {
638 match self {
639 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
640 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
641 }
642 true
643 } else {
644 false
645 }
646 }
647
648 fn select_next(
649 &mut self,
650 project: Option<&Model<Project>>,
651 cx: &mut ViewContext<Editor>,
652 ) -> bool {
653 if self.visible() {
654 match self {
655 ContextMenu::Completions(menu) => menu.select_next(project, cx),
656 ContextMenu::CodeActions(menu) => menu.select_next(cx),
657 }
658 true
659 } else {
660 false
661 }
662 }
663
664 fn select_last(
665 &mut self,
666 project: Option<&Model<Project>>,
667 cx: &mut ViewContext<Editor>,
668 ) -> bool {
669 if self.visible() {
670 match self {
671 ContextMenu::Completions(menu) => menu.select_last(project, cx),
672 ContextMenu::CodeActions(menu) => menu.select_last(cx),
673 }
674 true
675 } else {
676 false
677 }
678 }
679
680 fn visible(&self) -> bool {
681 match self {
682 ContextMenu::Completions(menu) => menu.visible(),
683 ContextMenu::CodeActions(menu) => menu.visible(),
684 }
685 }
686
687 fn render(
688 &self,
689 cursor_position: DisplayPoint,
690 style: &EditorStyle,
691 max_height: Pixels,
692 workspace: Option<WeakView<Workspace>>,
693 cx: &mut ViewContext<Editor>,
694 ) -> (DisplayPoint, AnyElement) {
695 match self {
696 ContextMenu::Completions(menu) => (
697 cursor_position,
698 menu.render(style, max_height, workspace, cx),
699 ),
700 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
701 }
702 }
703}
704
705#[derive(Clone)]
706struct CompletionsMenu {
707 id: CompletionId,
708 initial_position: Anchor,
709 buffer: Model<Buffer>,
710 completions: Arc<RwLock<Box<[Completion]>>>,
711 match_candidates: Arc<[StringMatchCandidate]>,
712 matches: Arc<[StringMatch]>,
713 selected_item: usize,
714 scroll_handle: UniformListScrollHandle,
715 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
716}
717
718impl CompletionsMenu {
719 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
720 self.selected_item = 0;
721 self.scroll_handle.scroll_to_item(self.selected_item);
722 self.attempt_resolve_selected_completion_documentation(project, cx);
723 cx.notify();
724 }
725
726 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
727 if self.selected_item > 0 {
728 self.selected_item -= 1;
729 } else {
730 self.selected_item = self.matches.len() - 1;
731 }
732 self.scroll_handle.scroll_to_item(self.selected_item);
733 self.attempt_resolve_selected_completion_documentation(project, cx);
734 cx.notify();
735 }
736
737 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
738 if self.selected_item + 1 < self.matches.len() {
739 self.selected_item += 1;
740 } else {
741 self.selected_item = 0;
742 }
743 self.scroll_handle.scroll_to_item(self.selected_item);
744 self.attempt_resolve_selected_completion_documentation(project, cx);
745 cx.notify();
746 }
747
748 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
749 self.selected_item = self.matches.len() - 1;
750 self.scroll_handle.scroll_to_item(self.selected_item);
751 self.attempt_resolve_selected_completion_documentation(project, cx);
752 cx.notify();
753 }
754
755 fn pre_resolve_completion_documentation(
756 completions: Arc<RwLock<Box<[Completion]>>>,
757 matches: Arc<[StringMatch]>,
758 editor: &Editor,
759 cx: &mut ViewContext<Editor>,
760 ) -> Task<()> {
761 let settings = EditorSettings::get_global(cx);
762 if !settings.show_completion_documentation {
763 return Task::ready(());
764 }
765
766 let Some(provider) = editor.completion_provider.as_ref() else {
767 return Task::ready(());
768 };
769
770 let resolve_task = provider.resolve_completions(
771 matches.iter().map(|m| m.candidate_id).collect(),
772 completions.clone(),
773 cx,
774 );
775
776 return cx.spawn(move |this, mut cx| async move {
777 if let Some(true) = resolve_task.await.log_err() {
778 this.update(&mut cx, |_, cx| cx.notify()).ok();
779 }
780 });
781 }
782
783 fn attempt_resolve_selected_completion_documentation(
784 &mut self,
785 project: Option<&Model<Project>>,
786 cx: &mut ViewContext<Editor>,
787 ) {
788 let settings = EditorSettings::get_global(cx);
789 if !settings.show_completion_documentation {
790 return;
791 }
792
793 let completion_index = self.matches[self.selected_item].candidate_id;
794 let Some(project) = project else {
795 return;
796 };
797
798 let resolve_task = project.update(cx, |project, cx| {
799 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
800 });
801
802 let delay_ms =
803 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
804 let delay = Duration::from_millis(delay_ms);
805
806 self.selected_completion_documentation_resolve_debounce
807 .lock()
808 .fire_new(delay, cx, |_, cx| {
809 cx.spawn(move |this, mut cx| async move {
810 if let Some(true) = resolve_task.await.log_err() {
811 this.update(&mut cx, |_, cx| cx.notify()).ok();
812 }
813 })
814 });
815 }
816
817 fn visible(&self) -> bool {
818 !self.matches.is_empty()
819 }
820
821 fn render(
822 &self,
823 style: &EditorStyle,
824 max_height: Pixels,
825 workspace: Option<WeakView<Workspace>>,
826 cx: &mut ViewContext<Editor>,
827 ) -> AnyElement {
828 let settings = EditorSettings::get_global(cx);
829 let show_completion_documentation = settings.show_completion_documentation;
830
831 let widest_completion_ix = self
832 .matches
833 .iter()
834 .enumerate()
835 .max_by_key(|(_, mat)| {
836 let completions = self.completions.read();
837 let completion = &completions[mat.candidate_id];
838 let documentation = &completion.documentation;
839
840 let mut len = completion.label.text.chars().count();
841 if let Some(Documentation::SingleLine(text)) = documentation {
842 if show_completion_documentation {
843 len += text.chars().count();
844 }
845 }
846
847 len
848 })
849 .map(|(ix, _)| ix);
850
851 let completions = self.completions.clone();
852 let matches = self.matches.clone();
853 let selected_item = self.selected_item;
854 let style = style.clone();
855
856 let multiline_docs = if show_completion_documentation {
857 let mat = &self.matches[selected_item];
858 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
859 Some(Documentation::MultiLinePlainText(text)) => {
860 Some(div().child(SharedString::from(text.clone())))
861 }
862 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
863 Some(div().child(render_parsed_markdown(
864 "completions_markdown",
865 parsed,
866 &style,
867 workspace,
868 cx,
869 )))
870 }
871 _ => None,
872 };
873 multiline_docs.map(|div| {
874 div.id("multiline_docs")
875 .max_h(max_height)
876 .flex_1()
877 .px_1p5()
878 .py_1()
879 .min_w(px(260.))
880 .max_w(px(640.))
881 .w(px(500.))
882 .overflow_y_scroll()
883 // Prevent a mouse down on documentation from being propagated to the editor,
884 // because that would move the cursor.
885 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
886 })
887 } else {
888 None
889 };
890
891 let list = uniform_list(
892 cx.view().clone(),
893 "completions",
894 matches.len(),
895 move |_editor, range, cx| {
896 let start_ix = range.start;
897 let completions_guard = completions.read();
898
899 matches[range]
900 .iter()
901 .enumerate()
902 .map(|(ix, mat)| {
903 let item_ix = start_ix + ix;
904 let candidate_id = mat.candidate_id;
905 let completion = &completions_guard[candidate_id];
906
907 let documentation = if show_completion_documentation {
908 &completion.documentation
909 } else {
910 &None
911 };
912
913 let highlights = gpui::combine_highlights(
914 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
915 styled_runs_for_code_label(&completion.label, &style.syntax).map(
916 |(range, mut highlight)| {
917 // Ignore font weight for syntax highlighting, as we'll use it
918 // for fuzzy matches.
919 highlight.font_weight = None;
920 (range, highlight)
921 },
922 ),
923 );
924 let completion_label = StyledText::new(completion.label.text.clone())
925 .with_highlights(&style.text, highlights);
926 let documentation_label =
927 if let Some(Documentation::SingleLine(text)) = documentation {
928 if text.trim().is_empty() {
929 None
930 } else {
931 Some(
932 h_flex().ml_4().child(
933 Label::new(text.clone())
934 .size(LabelSize::Small)
935 .color(Color::Muted),
936 ),
937 )
938 }
939 } else {
940 None
941 };
942
943 div().min_w(px(220.)).max_w(px(540.)).child(
944 ListItem::new(mat.candidate_id)
945 .inset(true)
946 .selected(item_ix == selected_item)
947 .on_click(cx.listener(move |editor, _event, cx| {
948 cx.stop_propagation();
949 editor
950 .confirm_completion(
951 &ConfirmCompletion {
952 item_ix: Some(item_ix),
953 },
954 cx,
955 )
956 .map(|task| task.detach_and_log_err(cx));
957 }))
958 .child(h_flex().overflow_hidden().child(completion_label))
959 .end_slot::<Div>(documentation_label),
960 )
961 })
962 .collect()
963 },
964 )
965 .max_h(max_height)
966 .track_scroll(self.scroll_handle.clone())
967 .with_width_from_item(widest_completion_ix);
968
969 Popover::new()
970 .child(list)
971 .when_some(multiline_docs, |popover, multiline_docs| {
972 popover.aside(multiline_docs)
973 })
974 .into_any_element()
975 }
976
977 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
978 let mut matches = if let Some(query) = query {
979 fuzzy::match_strings(
980 &self.match_candidates,
981 query,
982 query.chars().any(|c| c.is_uppercase()),
983 100,
984 &Default::default(),
985 executor,
986 )
987 .await
988 } else {
989 self.match_candidates
990 .iter()
991 .enumerate()
992 .map(|(candidate_id, candidate)| StringMatch {
993 candidate_id,
994 score: Default::default(),
995 positions: Default::default(),
996 string: candidate.string.clone(),
997 })
998 .collect()
999 };
1000
1001 // Remove all candidates where the query's start does not match the start of any word in the candidate
1002 if let Some(query) = query {
1003 if let Some(query_start) = query.chars().next() {
1004 matches.retain(|string_match| {
1005 split_words(&string_match.string).any(|word| {
1006 // Check that the first codepoint of the word as lowercase matches the first
1007 // codepoint of the query as lowercase
1008 word.chars()
1009 .flat_map(|codepoint| codepoint.to_lowercase())
1010 .zip(query_start.to_lowercase())
1011 .all(|(word_cp, query_cp)| word_cp == query_cp)
1012 })
1013 });
1014 }
1015 }
1016
1017 let completions = self.completions.read();
1018 matches.sort_unstable_by_key(|mat| {
1019 let completion = &completions[mat.candidate_id];
1020 (
1021 completion.lsp_completion.sort_text.as_ref(),
1022 Reverse(OrderedFloat(mat.score)),
1023 completion.sort_key(),
1024 )
1025 });
1026
1027 for mat in &mut matches {
1028 let completion = &completions[mat.candidate_id];
1029 mat.string = completion.label.text.clone();
1030 for position in &mut mat.positions {
1031 *position += completion.label.filter_range.start;
1032 }
1033 }
1034 drop(completions);
1035
1036 self.matches = matches.into();
1037 self.selected_item = 0;
1038 }
1039}
1040
1041#[derive(Clone)]
1042struct CodeActionsMenu {
1043 actions: Arc<[CodeAction]>,
1044 buffer: Model<Buffer>,
1045 selected_item: usize,
1046 scroll_handle: UniformListScrollHandle,
1047 deployed_from_indicator: bool,
1048}
1049
1050impl CodeActionsMenu {
1051 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1052 self.selected_item = 0;
1053 self.scroll_handle.scroll_to_item(self.selected_item);
1054 cx.notify()
1055 }
1056
1057 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1058 if self.selected_item > 0 {
1059 self.selected_item -= 1;
1060 } else {
1061 self.selected_item = self.actions.len() - 1;
1062 }
1063 self.scroll_handle.scroll_to_item(self.selected_item);
1064 cx.notify();
1065 }
1066
1067 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1068 if self.selected_item + 1 < self.actions.len() {
1069 self.selected_item += 1;
1070 } else {
1071 self.selected_item = 0;
1072 }
1073 self.scroll_handle.scroll_to_item(self.selected_item);
1074 cx.notify();
1075 }
1076
1077 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1078 self.selected_item = self.actions.len() - 1;
1079 self.scroll_handle.scroll_to_item(self.selected_item);
1080 cx.notify()
1081 }
1082
1083 fn visible(&self) -> bool {
1084 !self.actions.is_empty()
1085 }
1086
1087 fn render(
1088 &self,
1089 mut cursor_position: DisplayPoint,
1090 _style: &EditorStyle,
1091 max_height: Pixels,
1092 cx: &mut ViewContext<Editor>,
1093 ) -> (DisplayPoint, AnyElement) {
1094 let actions = self.actions.clone();
1095 let selected_item = self.selected_item;
1096
1097 let element = uniform_list(
1098 cx.view().clone(),
1099 "code_actions_menu",
1100 self.actions.len(),
1101 move |_this, range, cx| {
1102 actions[range.clone()]
1103 .iter()
1104 .enumerate()
1105 .map(|(ix, action)| {
1106 let item_ix = range.start + ix;
1107 let selected = selected_item == item_ix;
1108 let colors = cx.theme().colors();
1109 div()
1110 .px_2()
1111 .text_color(colors.text)
1112 .when(selected, |style| {
1113 style
1114 .bg(colors.element_active)
1115 .text_color(colors.text_accent)
1116 })
1117 .hover(|style| {
1118 style
1119 .bg(colors.element_hover)
1120 .text_color(colors.text_accent)
1121 })
1122 .on_mouse_down(
1123 MouseButton::Left,
1124 cx.listener(move |editor, _, cx| {
1125 cx.stop_propagation();
1126 editor
1127 .confirm_code_action(
1128 &ConfirmCodeAction {
1129 item_ix: Some(item_ix),
1130 },
1131 cx,
1132 )
1133 .map(|task| task.detach_and_log_err(cx));
1134 }),
1135 )
1136 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1137 .child(SharedString::from(action.lsp_action.title.clone()))
1138 })
1139 .collect()
1140 },
1141 )
1142 .elevation_1(cx)
1143 .px_2()
1144 .py_1()
1145 .max_h(max_height)
1146 .track_scroll(self.scroll_handle.clone())
1147 .with_width_from_item(
1148 self.actions
1149 .iter()
1150 .enumerate()
1151 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1152 .map(|(ix, _)| ix),
1153 )
1154 .into_any_element();
1155
1156 if self.deployed_from_indicator {
1157 *cursor_position.column_mut() = 0;
1158 }
1159
1160 (cursor_position, element)
1161 }
1162}
1163
1164pub(crate) struct CopilotState {
1165 excerpt_id: Option<ExcerptId>,
1166 pending_refresh: Task<Option<()>>,
1167 pending_cycling_refresh: Task<Option<()>>,
1168 cycled: bool,
1169 completions: Vec<copilot::Completion>,
1170 active_completion_index: usize,
1171 suggestion: Option<Inlay>,
1172}
1173
1174impl Default for CopilotState {
1175 fn default() -> Self {
1176 Self {
1177 excerpt_id: None,
1178 pending_cycling_refresh: Task::ready(Some(())),
1179 pending_refresh: Task::ready(Some(())),
1180 completions: Default::default(),
1181 active_completion_index: 0,
1182 cycled: false,
1183 suggestion: None,
1184 }
1185 }
1186}
1187
1188impl CopilotState {
1189 fn active_completion(&self) -> Option<&copilot::Completion> {
1190 self.completions.get(self.active_completion_index)
1191 }
1192
1193 fn text_for_active_completion(
1194 &self,
1195 cursor: Anchor,
1196 buffer: &MultiBufferSnapshot,
1197 ) -> Option<&str> {
1198 use language::ToOffset as _;
1199
1200 let completion = self.active_completion()?;
1201 let excerpt_id = self.excerpt_id?;
1202 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1203 if excerpt_id != cursor.excerpt_id
1204 || !completion.range.start.is_valid(completion_buffer)
1205 || !completion.range.end.is_valid(completion_buffer)
1206 {
1207 return None;
1208 }
1209
1210 let mut completion_range = completion.range.to_offset(&completion_buffer);
1211 let prefix_len = Self::common_prefix(
1212 completion_buffer.chars_for_range(completion_range.clone()),
1213 completion.text.chars(),
1214 );
1215 completion_range.start += prefix_len;
1216 let suffix_len = Self::common_prefix(
1217 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1218 completion.text[prefix_len..].chars().rev(),
1219 );
1220 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1221
1222 if completion_range.is_empty()
1223 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1224 {
1225 Some(&completion.text[prefix_len..completion.text.len() - suffix_len])
1226 } else {
1227 None
1228 }
1229 }
1230
1231 fn cycle_completions(&mut self, direction: Direction) {
1232 match direction {
1233 Direction::Prev => {
1234 self.active_completion_index = if self.active_completion_index == 0 {
1235 self.completions.len().saturating_sub(1)
1236 } else {
1237 self.active_completion_index - 1
1238 };
1239 }
1240 Direction::Next => {
1241 if self.completions.len() == 0 {
1242 self.active_completion_index = 0
1243 } else {
1244 self.active_completion_index =
1245 (self.active_completion_index + 1) % self.completions.len();
1246 }
1247 }
1248 }
1249 }
1250
1251 fn push_completion(&mut self, new_completion: copilot::Completion) {
1252 for completion in &self.completions {
1253 if completion.text == new_completion.text && completion.range == new_completion.range {
1254 return;
1255 }
1256 }
1257 self.completions.push(new_completion);
1258 }
1259
1260 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1261 a.zip(b)
1262 .take_while(|(a, b)| a == b)
1263 .map(|(a, _)| a.len_utf8())
1264 .sum()
1265 }
1266}
1267
1268#[derive(Debug)]
1269struct ActiveDiagnosticGroup {
1270 primary_range: Range<Anchor>,
1271 primary_message: String,
1272 blocks: HashMap<BlockId, Diagnostic>,
1273 is_valid: bool,
1274}
1275
1276#[derive(Serialize, Deserialize)]
1277pub struct ClipboardSelection {
1278 pub len: usize,
1279 pub is_entire_line: bool,
1280 pub first_line_indent: u32,
1281}
1282
1283#[derive(Debug)]
1284pub(crate) struct NavigationData {
1285 cursor_anchor: Anchor,
1286 cursor_position: Point,
1287 scroll_anchor: ScrollAnchor,
1288 scroll_top_row: u32,
1289}
1290
1291enum GotoDefinitionKind {
1292 Symbol,
1293 Type,
1294}
1295
1296#[derive(Debug, Clone)]
1297enum InlayHintRefreshReason {
1298 Toggle(bool),
1299 SettingsChange(InlayHintSettings),
1300 NewLinesShown,
1301 BufferEdited(HashSet<Arc<Language>>),
1302 RefreshRequested,
1303 ExcerptsRemoved(Vec<ExcerptId>),
1304}
1305impl InlayHintRefreshReason {
1306 fn description(&self) -> &'static str {
1307 match self {
1308 Self::Toggle(_) => "toggle",
1309 Self::SettingsChange(_) => "settings change",
1310 Self::NewLinesShown => "new lines shown",
1311 Self::BufferEdited(_) => "buffer edited",
1312 Self::RefreshRequested => "refresh requested",
1313 Self::ExcerptsRemoved(_) => "excerpts removed",
1314 }
1315 }
1316}
1317
1318impl Editor {
1319 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1320 let buffer = cx.new_model(|cx| {
1321 Buffer::new(
1322 0,
1323 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1324 String::new(),
1325 )
1326 });
1327 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1328 Self::new(EditorMode::SingleLine, buffer, None, cx)
1329 }
1330
1331 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1332 let buffer = cx.new_model(|cx| {
1333 Buffer::new(
1334 0,
1335 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1336 String::new(),
1337 )
1338 });
1339 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1340 Self::new(EditorMode::Full, buffer, None, cx)
1341 }
1342
1343 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1344 let buffer = cx.new_model(|cx| {
1345 Buffer::new(
1346 0,
1347 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1348 String::new(),
1349 )
1350 });
1351 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1352 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1353 }
1354
1355 pub fn for_buffer(
1356 buffer: Model<Buffer>,
1357 project: Option<Model<Project>>,
1358 cx: &mut ViewContext<Self>,
1359 ) -> Self {
1360 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1361 Self::new(EditorMode::Full, buffer, project, cx)
1362 }
1363
1364 pub fn for_multibuffer(
1365 buffer: Model<MultiBuffer>,
1366 project: Option<Model<Project>>,
1367 cx: &mut ViewContext<Self>,
1368 ) -> Self {
1369 Self::new(EditorMode::Full, buffer, project, cx)
1370 }
1371
1372 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1373 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1374 self.display_map.update(cx, |display_map, cx| {
1375 let snapshot = display_map.snapshot(cx);
1376 clone.display_map.update(cx, |display_map, cx| {
1377 display_map.set_state(&snapshot, cx);
1378 });
1379 });
1380 clone.selections.clone_state(&self.selections);
1381 clone.scroll_manager.clone_state(&self.scroll_manager);
1382 clone.searchable = self.searchable;
1383 clone
1384 }
1385
1386 fn new(
1387 mode: EditorMode,
1388 buffer: Model<MultiBuffer>,
1389 project: Option<Model<Project>>,
1390 cx: &mut ViewContext<Self>,
1391 ) -> Self {
1392 let style = cx.text_style();
1393 let font_size = style.font_size.to_pixels(cx.rem_size());
1394 let display_map = cx.new_model(|cx| {
1395 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1396 });
1397
1398 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1399
1400 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1401
1402 let soft_wrap_mode_override =
1403 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1404
1405 let mut project_subscriptions = Vec::new();
1406 if mode == EditorMode::Full {
1407 if let Some(project) = project.as_ref() {
1408 if buffer.read(cx).is_singleton() {
1409 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1410 cx.emit(EditorEvent::TitleChanged);
1411 }));
1412 }
1413 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1414 if let project::Event::RefreshInlayHints = event {
1415 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1416 };
1417 }));
1418 }
1419 }
1420
1421 let inlay_hint_settings = inlay_hint_settings(
1422 selections.newest_anchor().head(),
1423 &buffer.read(cx).snapshot(cx),
1424 cx,
1425 );
1426
1427 let focus_handle = cx.focus_handle();
1428 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1429 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1430
1431 let mut this = Self {
1432 handle: cx.view().downgrade(),
1433 focus_handle,
1434 buffer: buffer.clone(),
1435 display_map: display_map.clone(),
1436 selections,
1437 scroll_manager: ScrollManager::new(cx),
1438 columnar_selection_tail: None,
1439 add_selections_state: None,
1440 select_next_state: None,
1441 select_prev_state: None,
1442 selection_history: Default::default(),
1443 autoclose_regions: Default::default(),
1444 snippet_stack: Default::default(),
1445 select_larger_syntax_node_stack: Vec::new(),
1446 ime_transaction: Default::default(),
1447 active_diagnostics: None,
1448 soft_wrap_mode_override,
1449 completion_provider: project.clone().map(|project| Box::new(project) as _),
1450 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1451 project,
1452 blink_manager: blink_manager.clone(),
1453 show_local_selections: true,
1454 mode,
1455 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1456 show_gutter: mode == EditorMode::Full,
1457 show_wrap_guides: None,
1458 placeholder_text: None,
1459 highlighted_rows: None,
1460 background_highlights: Default::default(),
1461 inlay_background_highlights: Default::default(),
1462 nav_history: None,
1463 context_menu: RwLock::new(None),
1464 mouse_context_menu: None,
1465 completion_tasks: Default::default(),
1466 next_completion_id: 0,
1467 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1468 next_inlay_id: 0,
1469 available_code_actions: Default::default(),
1470 code_actions_task: Default::default(),
1471 document_highlights_task: Default::default(),
1472 pending_rename: Default::default(),
1473 searchable: true,
1474 cursor_shape: Default::default(),
1475 autoindent_mode: Some(AutoindentMode::EachLine),
1476 collapse_matches: false,
1477 workspace: None,
1478 keymap_context_layers: Default::default(),
1479 input_enabled: true,
1480 read_only: false,
1481 use_autoclose: true,
1482 leader_peer_id: None,
1483 remote_id: None,
1484 hover_state: Default::default(),
1485 hovered_link_state: Default::default(),
1486 copilot_state: Default::default(),
1487 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1488 gutter_hovered: false,
1489 pixel_position_of_newest_cursor: None,
1490 gutter_width: Default::default(),
1491 style: None,
1492 show_cursor_names: false,
1493 hovered_cursors: Default::default(),
1494 editor_actions: Default::default(),
1495 show_copilot_suggestions: mode == EditorMode::Full,
1496 custom_context_menu: None,
1497 _subscriptions: vec![
1498 cx.observe(&buffer, Self::on_buffer_changed),
1499 cx.subscribe(&buffer, Self::on_buffer_event),
1500 cx.observe(&display_map, Self::on_display_map_changed),
1501 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1502 cx.observe_global::<SettingsStore>(Self::settings_changed),
1503 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1504 cx.observe_window_activation(|editor, cx| {
1505 let active = cx.is_window_active();
1506 editor.blink_manager.update(cx, |blink_manager, cx| {
1507 if active {
1508 blink_manager.enable(cx);
1509 } else {
1510 blink_manager.show_cursor(cx);
1511 blink_manager.disable(cx);
1512 }
1513 });
1514 }),
1515 ],
1516 };
1517
1518 this._subscriptions.extend(project_subscriptions);
1519
1520 this.end_selection(cx);
1521 this.scroll_manager.show_scrollbar(cx);
1522
1523 if mode == EditorMode::Full {
1524 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1525 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1526 }
1527
1528 this.report_editor_event("open", None, cx);
1529 this
1530 }
1531
1532 fn key_context(&self, cx: &AppContext) -> KeyContext {
1533 let mut key_context = KeyContext::default();
1534 key_context.add("Editor");
1535 let mode = match self.mode {
1536 EditorMode::SingleLine => "single_line",
1537 EditorMode::AutoHeight { .. } => "auto_height",
1538 EditorMode::Full => "full",
1539 };
1540 key_context.set("mode", mode);
1541 if self.pending_rename.is_some() {
1542 key_context.add("renaming");
1543 }
1544 if self.context_menu_visible() {
1545 match self.context_menu.read().as_ref() {
1546 Some(ContextMenu::Completions(_)) => {
1547 key_context.add("menu");
1548 key_context.add("showing_completions")
1549 }
1550 Some(ContextMenu::CodeActions(_)) => {
1551 key_context.add("menu");
1552 key_context.add("showing_code_actions")
1553 }
1554 None => {}
1555 }
1556 }
1557
1558 for layer in self.keymap_context_layers.values() {
1559 key_context.extend(layer);
1560 }
1561
1562 if let Some(extension) = self
1563 .buffer
1564 .read(cx)
1565 .as_singleton()
1566 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1567 {
1568 key_context.set("extension", extension.to_string());
1569 }
1570
1571 key_context
1572 }
1573
1574 pub fn new_file(
1575 workspace: &mut Workspace,
1576 _: &workspace::NewFile,
1577 cx: &mut ViewContext<Workspace>,
1578 ) {
1579 let project = workspace.project().clone();
1580 if project.read(cx).is_remote() {
1581 cx.propagate();
1582 } else if let Some(buffer) = project
1583 .update(cx, |project, cx| project.create_buffer("", None, cx))
1584 .log_err()
1585 {
1586 workspace.add_item(
1587 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1588 cx,
1589 );
1590 }
1591 }
1592
1593 pub fn new_file_in_direction(
1594 workspace: &mut Workspace,
1595 action: &workspace::NewFileInDirection,
1596 cx: &mut ViewContext<Workspace>,
1597 ) {
1598 let project = workspace.project().clone();
1599 if project.read(cx).is_remote() {
1600 cx.propagate();
1601 } else if let Some(buffer) = project
1602 .update(cx, |project, cx| project.create_buffer("", None, cx))
1603 .log_err()
1604 {
1605 workspace.split_item(
1606 action.0,
1607 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1608 cx,
1609 );
1610 }
1611 }
1612
1613 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1614 self.buffer.read(cx).replica_id()
1615 }
1616
1617 pub fn leader_peer_id(&self) -> Option<PeerId> {
1618 self.leader_peer_id
1619 }
1620
1621 pub fn buffer(&self) -> &Model<MultiBuffer> {
1622 &self.buffer
1623 }
1624
1625 pub fn workspace(&self) -> Option<View<Workspace>> {
1626 self.workspace.as_ref()?.0.upgrade()
1627 }
1628
1629 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1630 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1631 }
1632
1633 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1634 self.buffer().read(cx).title(cx)
1635 }
1636
1637 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1638 EditorSnapshot {
1639 mode: self.mode,
1640 show_gutter: self.show_gutter,
1641 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1642 scroll_anchor: self.scroll_manager.anchor(),
1643 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1644 placeholder_text: self.placeholder_text.clone(),
1645 is_focused: self.focus_handle.is_focused(cx),
1646 }
1647 }
1648
1649 pub fn language_at<'a, T: ToOffset>(
1650 &self,
1651 point: T,
1652 cx: &'a AppContext,
1653 ) -> Option<Arc<Language>> {
1654 self.buffer.read(cx).language_at(point, cx)
1655 }
1656
1657 pub fn file_at<'a, T: ToOffset>(
1658 &self,
1659 point: T,
1660 cx: &'a AppContext,
1661 ) -> Option<Arc<dyn language::File>> {
1662 self.buffer.read(cx).read(cx).file_at(point).cloned()
1663 }
1664
1665 pub fn active_excerpt(
1666 &self,
1667 cx: &AppContext,
1668 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1669 self.buffer
1670 .read(cx)
1671 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1672 }
1673
1674 pub fn mode(&self) -> EditorMode {
1675 self.mode
1676 }
1677
1678 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1679 self.collaboration_hub.as_deref()
1680 }
1681
1682 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1683 self.collaboration_hub = Some(hub);
1684 }
1685
1686 pub fn set_custom_context_menu(
1687 &mut self,
1688 f: impl 'static
1689 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1690 ) {
1691 self.custom_context_menu = Some(Box::new(f))
1692 }
1693
1694 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1695 self.completion_provider = Some(hub);
1696 }
1697
1698 pub fn placeholder_text(&self) -> Option<&str> {
1699 self.placeholder_text.as_deref()
1700 }
1701
1702 pub fn set_placeholder_text(
1703 &mut self,
1704 placeholder_text: impl Into<Arc<str>>,
1705 cx: &mut ViewContext<Self>,
1706 ) {
1707 let placeholder_text = Some(placeholder_text.into());
1708 if self.placeholder_text != placeholder_text {
1709 self.placeholder_text = placeholder_text;
1710 cx.notify();
1711 }
1712 }
1713
1714 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1715 self.cursor_shape = cursor_shape;
1716 cx.notify();
1717 }
1718
1719 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1720 self.collapse_matches = collapse_matches;
1721 }
1722
1723 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1724 if self.collapse_matches {
1725 return range.start..range.start;
1726 }
1727 range.clone()
1728 }
1729
1730 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1731 if self.display_map.read(cx).clip_at_line_ends != clip {
1732 self.display_map
1733 .update(cx, |map, _| map.clip_at_line_ends = clip);
1734 }
1735 }
1736
1737 pub fn set_keymap_context_layer<Tag: 'static>(
1738 &mut self,
1739 context: KeyContext,
1740 cx: &mut ViewContext<Self>,
1741 ) {
1742 self.keymap_context_layers
1743 .insert(TypeId::of::<Tag>(), context);
1744 cx.notify();
1745 }
1746
1747 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1748 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1749 cx.notify();
1750 }
1751
1752 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1753 self.input_enabled = input_enabled;
1754 }
1755
1756 pub fn set_autoindent(&mut self, autoindent: bool) {
1757 if autoindent {
1758 self.autoindent_mode = Some(AutoindentMode::EachLine);
1759 } else {
1760 self.autoindent_mode = None;
1761 }
1762 }
1763
1764 pub fn read_only(&self, cx: &AppContext) -> bool {
1765 self.read_only || self.buffer.read(cx).read_only()
1766 }
1767
1768 pub fn set_read_only(&mut self, read_only: bool) {
1769 self.read_only = read_only;
1770 }
1771
1772 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1773 self.use_autoclose = autoclose;
1774 }
1775
1776 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1777 self.show_copilot_suggestions = show_copilot_suggestions;
1778 }
1779
1780 fn selections_did_change(
1781 &mut self,
1782 local: bool,
1783 old_cursor_position: &Anchor,
1784 cx: &mut ViewContext<Self>,
1785 ) {
1786 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1787 self.buffer.update(cx, |buffer, cx| {
1788 buffer.set_active_selections(
1789 &self.selections.disjoint_anchors(),
1790 self.selections.line_mode,
1791 self.cursor_shape,
1792 cx,
1793 )
1794 });
1795 }
1796
1797 let display_map = self
1798 .display_map
1799 .update(cx, |display_map, cx| display_map.snapshot(cx));
1800 let buffer = &display_map.buffer_snapshot;
1801 self.add_selections_state = None;
1802 self.select_next_state = None;
1803 self.select_prev_state = None;
1804 self.select_larger_syntax_node_stack.clear();
1805 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1806 self.snippet_stack
1807 .invalidate(&self.selections.disjoint_anchors(), buffer);
1808 self.take_rename(false, cx);
1809
1810 let new_cursor_position = self.selections.newest_anchor().head();
1811
1812 self.push_to_nav_history(
1813 old_cursor_position.clone(),
1814 Some(new_cursor_position.to_point(buffer)),
1815 cx,
1816 );
1817
1818 if local {
1819 let new_cursor_position = self.selections.newest_anchor().head();
1820 let mut context_menu = self.context_menu.write();
1821 let completion_menu = match context_menu.as_ref() {
1822 Some(ContextMenu::Completions(menu)) => Some(menu),
1823
1824 _ => {
1825 *context_menu = None;
1826 None
1827 }
1828 };
1829
1830 if let Some(completion_menu) = completion_menu {
1831 let cursor_position = new_cursor_position.to_offset(buffer);
1832 let (word_range, kind) =
1833 buffer.surrounding_word(completion_menu.initial_position.clone());
1834 if kind == Some(CharKind::Word)
1835 && word_range.to_inclusive().contains(&cursor_position)
1836 {
1837 let mut completion_menu = completion_menu.clone();
1838 drop(context_menu);
1839
1840 let query = Self::completion_query(buffer, cursor_position);
1841 cx.spawn(move |this, mut cx| async move {
1842 completion_menu
1843 .filter(query.as_deref(), cx.background_executor().clone())
1844 .await;
1845
1846 this.update(&mut cx, |this, cx| {
1847 let mut context_menu = this.context_menu.write();
1848 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1849 return;
1850 };
1851
1852 if menu.id > completion_menu.id {
1853 return;
1854 }
1855
1856 *context_menu = Some(ContextMenu::Completions(completion_menu));
1857 drop(context_menu);
1858 cx.notify();
1859 })
1860 })
1861 .detach();
1862
1863 self.show_completions(&ShowCompletions, cx);
1864 } else {
1865 drop(context_menu);
1866 self.hide_context_menu(cx);
1867 }
1868 } else {
1869 drop(context_menu);
1870 }
1871
1872 hide_hover(self, cx);
1873
1874 if old_cursor_position.to_display_point(&display_map).row()
1875 != new_cursor_position.to_display_point(&display_map).row()
1876 {
1877 self.available_code_actions.take();
1878 }
1879 self.refresh_code_actions(cx);
1880 self.refresh_document_highlights(cx);
1881 refresh_matching_bracket_highlights(self, cx);
1882 self.discard_copilot_suggestion(cx);
1883 }
1884
1885 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1886 cx.emit(EditorEvent::SelectionsChanged { local });
1887
1888 if self.selections.disjoint_anchors().len() == 1 {
1889 cx.emit(SearchEvent::ActiveMatchChanged)
1890 }
1891
1892 cx.notify();
1893 }
1894
1895 pub fn change_selections<R>(
1896 &mut self,
1897 autoscroll: Option<Autoscroll>,
1898 cx: &mut ViewContext<Self>,
1899 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1900 ) -> R {
1901 let old_cursor_position = self.selections.newest_anchor().head();
1902 self.push_to_selection_history();
1903
1904 let (changed, result) = self.selections.change_with(cx, change);
1905
1906 if changed {
1907 if let Some(autoscroll) = autoscroll {
1908 self.request_autoscroll(autoscroll, cx);
1909 }
1910 self.selections_did_change(true, &old_cursor_position, cx);
1911 }
1912
1913 result
1914 }
1915
1916 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1917 where
1918 I: IntoIterator<Item = (Range<S>, T)>,
1919 S: ToOffset,
1920 T: Into<Arc<str>>,
1921 {
1922 if self.read_only(cx) {
1923 return;
1924 }
1925
1926 self.buffer
1927 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1928 }
1929
1930 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1931 where
1932 I: IntoIterator<Item = (Range<S>, T)>,
1933 S: ToOffset,
1934 T: Into<Arc<str>>,
1935 {
1936 if self.read_only(cx) {
1937 return;
1938 }
1939
1940 self.buffer.update(cx, |buffer, cx| {
1941 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1942 });
1943 }
1944
1945 pub fn edit_with_block_indent<I, S, T>(
1946 &mut self,
1947 edits: I,
1948 original_indent_columns: Vec<u32>,
1949 cx: &mut ViewContext<Self>,
1950 ) where
1951 I: IntoIterator<Item = (Range<S>, T)>,
1952 S: ToOffset,
1953 T: Into<Arc<str>>,
1954 {
1955 if self.read_only(cx) {
1956 return;
1957 }
1958
1959 self.buffer.update(cx, |buffer, cx| {
1960 buffer.edit(
1961 edits,
1962 Some(AutoindentMode::Block {
1963 original_indent_columns,
1964 }),
1965 cx,
1966 )
1967 });
1968 }
1969
1970 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1971 self.hide_context_menu(cx);
1972
1973 match phase {
1974 SelectPhase::Begin {
1975 position,
1976 add,
1977 click_count,
1978 } => self.begin_selection(position, add, click_count, cx),
1979 SelectPhase::BeginColumnar {
1980 position,
1981 goal_column,
1982 } => self.begin_columnar_selection(position, goal_column, cx),
1983 SelectPhase::Extend {
1984 position,
1985 click_count,
1986 } => self.extend_selection(position, click_count, cx),
1987 SelectPhase::Update {
1988 position,
1989 goal_column,
1990 scroll_delta,
1991 } => self.update_selection(position, goal_column, scroll_delta, cx),
1992 SelectPhase::End => self.end_selection(cx),
1993 }
1994 }
1995
1996 fn extend_selection(
1997 &mut self,
1998 position: DisplayPoint,
1999 click_count: usize,
2000 cx: &mut ViewContext<Self>,
2001 ) {
2002 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2003 let tail = self.selections.newest::<usize>(cx).tail();
2004 self.begin_selection(position, false, click_count, cx);
2005
2006 let position = position.to_offset(&display_map, Bias::Left);
2007 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2008
2009 let mut pending_selection = self
2010 .selections
2011 .pending_anchor()
2012 .expect("extend_selection not called with pending selection");
2013 if position >= tail {
2014 pending_selection.start = tail_anchor;
2015 } else {
2016 pending_selection.end = tail_anchor;
2017 pending_selection.reversed = true;
2018 }
2019
2020 let mut pending_mode = self.selections.pending_mode().unwrap();
2021 match &mut pending_mode {
2022 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2023 _ => {}
2024 }
2025
2026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2027 s.set_pending(pending_selection, pending_mode)
2028 });
2029 }
2030
2031 fn begin_selection(
2032 &mut self,
2033 position: DisplayPoint,
2034 add: bool,
2035 click_count: usize,
2036 cx: &mut ViewContext<Self>,
2037 ) {
2038 if !self.focus_handle.is_focused(cx) {
2039 cx.focus(&self.focus_handle);
2040 }
2041
2042 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2043 let buffer = &display_map.buffer_snapshot;
2044 let newest_selection = self.selections.newest_anchor().clone();
2045 let position = display_map.clip_point(position, Bias::Left);
2046
2047 let start;
2048 let end;
2049 let mode;
2050 let auto_scroll;
2051 match click_count {
2052 1 => {
2053 start = buffer.anchor_before(position.to_point(&display_map));
2054 end = start.clone();
2055 mode = SelectMode::Character;
2056 auto_scroll = true;
2057 }
2058 2 => {
2059 let range = movement::surrounding_word(&display_map, position);
2060 start = buffer.anchor_before(range.start.to_point(&display_map));
2061 end = buffer.anchor_before(range.end.to_point(&display_map));
2062 mode = SelectMode::Word(start.clone()..end.clone());
2063 auto_scroll = true;
2064 }
2065 3 => {
2066 let position = display_map
2067 .clip_point(position, Bias::Left)
2068 .to_point(&display_map);
2069 let line_start = display_map.prev_line_boundary(position).0;
2070 let next_line_start = buffer.clip_point(
2071 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2072 Bias::Left,
2073 );
2074 start = buffer.anchor_before(line_start);
2075 end = buffer.anchor_before(next_line_start);
2076 mode = SelectMode::Line(start.clone()..end.clone());
2077 auto_scroll = true;
2078 }
2079 _ => {
2080 start = buffer.anchor_before(0);
2081 end = buffer.anchor_before(buffer.len());
2082 mode = SelectMode::All;
2083 auto_scroll = false;
2084 }
2085 }
2086
2087 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2088 if !add {
2089 s.clear_disjoint();
2090 } else if click_count > 1 {
2091 s.delete(newest_selection.id)
2092 }
2093
2094 s.set_pending_anchor_range(start..end, mode);
2095 });
2096 }
2097
2098 fn begin_columnar_selection(
2099 &mut self,
2100 position: DisplayPoint,
2101 goal_column: u32,
2102 cx: &mut ViewContext<Self>,
2103 ) {
2104 if !self.focus_handle.is_focused(cx) {
2105 cx.focus(&self.focus_handle);
2106 }
2107
2108 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2109 let tail = self.selections.newest::<Point>(cx).tail();
2110 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2111
2112 self.select_columns(
2113 tail.to_display_point(&display_map),
2114 position,
2115 goal_column,
2116 &display_map,
2117 cx,
2118 );
2119 }
2120
2121 fn update_selection(
2122 &mut self,
2123 position: DisplayPoint,
2124 goal_column: u32,
2125 scroll_delta: gpui::Point<f32>,
2126 cx: &mut ViewContext<Self>,
2127 ) {
2128 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2129
2130 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2131 let tail = tail.to_display_point(&display_map);
2132 self.select_columns(tail, position, goal_column, &display_map, cx);
2133 } else if let Some(mut pending) = self.selections.pending_anchor() {
2134 let buffer = self.buffer.read(cx).snapshot(cx);
2135 let head;
2136 let tail;
2137 let mode = self.selections.pending_mode().unwrap();
2138 match &mode {
2139 SelectMode::Character => {
2140 head = position.to_point(&display_map);
2141 tail = pending.tail().to_point(&buffer);
2142 }
2143 SelectMode::Word(original_range) => {
2144 let original_display_range = original_range.start.to_display_point(&display_map)
2145 ..original_range.end.to_display_point(&display_map);
2146 let original_buffer_range = original_display_range.start.to_point(&display_map)
2147 ..original_display_range.end.to_point(&display_map);
2148 if movement::is_inside_word(&display_map, position)
2149 || original_display_range.contains(&position)
2150 {
2151 let word_range = movement::surrounding_word(&display_map, position);
2152 if word_range.start < original_display_range.start {
2153 head = word_range.start.to_point(&display_map);
2154 } else {
2155 head = word_range.end.to_point(&display_map);
2156 }
2157 } else {
2158 head = position.to_point(&display_map);
2159 }
2160
2161 if head <= original_buffer_range.start {
2162 tail = original_buffer_range.end;
2163 } else {
2164 tail = original_buffer_range.start;
2165 }
2166 }
2167 SelectMode::Line(original_range) => {
2168 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2169
2170 let position = display_map
2171 .clip_point(position, Bias::Left)
2172 .to_point(&display_map);
2173 let line_start = display_map.prev_line_boundary(position).0;
2174 let next_line_start = buffer.clip_point(
2175 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2176 Bias::Left,
2177 );
2178
2179 if line_start < original_range.start {
2180 head = line_start
2181 } else {
2182 head = next_line_start
2183 }
2184
2185 if head <= original_range.start {
2186 tail = original_range.end;
2187 } else {
2188 tail = original_range.start;
2189 }
2190 }
2191 SelectMode::All => {
2192 return;
2193 }
2194 };
2195
2196 if head < tail {
2197 pending.start = buffer.anchor_before(head);
2198 pending.end = buffer.anchor_before(tail);
2199 pending.reversed = true;
2200 } else {
2201 pending.start = buffer.anchor_before(tail);
2202 pending.end = buffer.anchor_before(head);
2203 pending.reversed = false;
2204 }
2205
2206 self.change_selections(None, cx, |s| {
2207 s.set_pending(pending, mode);
2208 });
2209 } else {
2210 log::error!("update_selection dispatched with no pending selection");
2211 return;
2212 }
2213
2214 self.apply_scroll_delta(scroll_delta, cx);
2215 cx.notify();
2216 }
2217
2218 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2219 self.columnar_selection_tail.take();
2220 if self.selections.pending_anchor().is_some() {
2221 let selections = self.selections.all::<usize>(cx);
2222 self.change_selections(None, cx, |s| {
2223 s.select(selections);
2224 s.clear_pending();
2225 });
2226 }
2227 }
2228
2229 fn select_columns(
2230 &mut self,
2231 tail: DisplayPoint,
2232 head: DisplayPoint,
2233 goal_column: u32,
2234 display_map: &DisplaySnapshot,
2235 cx: &mut ViewContext<Self>,
2236 ) {
2237 let start_row = cmp::min(tail.row(), head.row());
2238 let end_row = cmp::max(tail.row(), head.row());
2239 let start_column = cmp::min(tail.column(), goal_column);
2240 let end_column = cmp::max(tail.column(), goal_column);
2241 let reversed = start_column < tail.column();
2242
2243 let selection_ranges = (start_row..=end_row)
2244 .filter_map(|row| {
2245 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2246 let start = display_map
2247 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2248 .to_point(display_map);
2249 let end = display_map
2250 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2251 .to_point(display_map);
2252 if reversed {
2253 Some(end..start)
2254 } else {
2255 Some(start..end)
2256 }
2257 } else {
2258 None
2259 }
2260 })
2261 .collect::<Vec<_>>();
2262
2263 self.change_selections(None, cx, |s| {
2264 s.select_ranges(selection_ranges);
2265 });
2266 cx.notify();
2267 }
2268
2269 pub fn has_pending_nonempty_selection(&self) -> bool {
2270 let pending_nonempty_selection = match self.selections.pending_anchor() {
2271 Some(Selection { start, end, .. }) => start != end,
2272 None => false,
2273 };
2274 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2275 }
2276
2277 pub fn has_pending_selection(&self) -> bool {
2278 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2279 }
2280
2281 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2282 if self.take_rename(false, cx).is_some() {
2283 return;
2284 }
2285
2286 if hide_hover(self, cx) {
2287 return;
2288 }
2289
2290 if self.hide_context_menu(cx).is_some() {
2291 return;
2292 }
2293
2294 if self.discard_copilot_suggestion(cx) {
2295 return;
2296 }
2297
2298 if self.snippet_stack.pop().is_some() {
2299 return;
2300 }
2301
2302 if self.mode == EditorMode::Full {
2303 if self.active_diagnostics.is_some() {
2304 self.dismiss_diagnostics(cx);
2305 return;
2306 }
2307
2308 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2309 return;
2310 }
2311 }
2312
2313 cx.propagate();
2314 }
2315
2316 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2317 let text: Arc<str> = text.into();
2318
2319 if self.read_only(cx) {
2320 return;
2321 }
2322
2323 let selections = self.selections.all_adjusted(cx);
2324 let mut brace_inserted = false;
2325 let mut edits = Vec::new();
2326 let mut new_selections = Vec::with_capacity(selections.len());
2327 let mut new_autoclose_regions = Vec::new();
2328 let snapshot = self.buffer.read(cx).read(cx);
2329
2330 for (selection, autoclose_region) in
2331 self.selections_with_autoclose_regions(selections, &snapshot)
2332 {
2333 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2334 // Determine if the inserted text matches the opening or closing
2335 // bracket of any of this language's bracket pairs.
2336 let mut bracket_pair = None;
2337 let mut is_bracket_pair_start = false;
2338 if !text.is_empty() {
2339 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2340 // and they are removing the character that triggered IME popup.
2341 for (pair, enabled) in scope.brackets() {
2342 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2343 bracket_pair = Some(pair.clone());
2344 is_bracket_pair_start = true;
2345 break;
2346 } else if pair.end.as_str() == text.as_ref() {
2347 bracket_pair = Some(pair.clone());
2348 break;
2349 }
2350 }
2351 }
2352
2353 if let Some(bracket_pair) = bracket_pair {
2354 if selection.is_empty() {
2355 if is_bracket_pair_start {
2356 let prefix_len = bracket_pair.start.len() - text.len();
2357
2358 // If the inserted text is a suffix of an opening bracket and the
2359 // selection is preceded by the rest of the opening bracket, then
2360 // insert the closing bracket.
2361 let following_text_allows_autoclose = snapshot
2362 .chars_at(selection.start)
2363 .next()
2364 .map_or(true, |c| scope.should_autoclose_before(c));
2365 let preceding_text_matches_prefix = prefix_len == 0
2366 || (selection.start.column >= (prefix_len as u32)
2367 && snapshot.contains_str_at(
2368 Point::new(
2369 selection.start.row,
2370 selection.start.column - (prefix_len as u32),
2371 ),
2372 &bracket_pair.start[..prefix_len],
2373 ));
2374 let autoclose = self.use_autoclose
2375 && snapshot.settings_at(selection.start, cx).use_autoclose;
2376 if autoclose
2377 && following_text_allows_autoclose
2378 && preceding_text_matches_prefix
2379 {
2380 let anchor = snapshot.anchor_before(selection.end);
2381 new_selections.push((selection.map(|_| anchor), text.len()));
2382 new_autoclose_regions.push((
2383 anchor,
2384 text.len(),
2385 selection.id,
2386 bracket_pair.clone(),
2387 ));
2388 edits.push((
2389 selection.range(),
2390 format!("{}{}", text, bracket_pair.end).into(),
2391 ));
2392 brace_inserted = true;
2393 continue;
2394 }
2395 }
2396
2397 if let Some(region) = autoclose_region {
2398 // If the selection is followed by an auto-inserted closing bracket,
2399 // then don't insert that closing bracket again; just move the selection
2400 // past the closing bracket.
2401 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2402 && text.as_ref() == region.pair.end.as_str();
2403 if should_skip {
2404 let anchor = snapshot.anchor_after(selection.end);
2405 new_selections
2406 .push((selection.map(|_| anchor), region.pair.end.len()));
2407 continue;
2408 }
2409 }
2410 }
2411 // If an opening bracket is 1 character long and is typed while
2412 // text is selected, then surround that text with the bracket pair.
2413 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2414 edits.push((selection.start..selection.start, text.clone()));
2415 edits.push((
2416 selection.end..selection.end,
2417 bracket_pair.end.as_str().into(),
2418 ));
2419 brace_inserted = true;
2420 new_selections.push((
2421 Selection {
2422 id: selection.id,
2423 start: snapshot.anchor_after(selection.start),
2424 end: snapshot.anchor_before(selection.end),
2425 reversed: selection.reversed,
2426 goal: selection.goal,
2427 },
2428 0,
2429 ));
2430 continue;
2431 }
2432 }
2433 }
2434
2435 // If not handling any auto-close operation, then just replace the selected
2436 // text with the given input and move the selection to the end of the
2437 // newly inserted text.
2438 let anchor = snapshot.anchor_after(selection.end);
2439 new_selections.push((selection.map(|_| anchor), 0));
2440 edits.push((selection.start..selection.end, text.clone()));
2441 }
2442
2443 drop(snapshot);
2444 self.transact(cx, |this, cx| {
2445 this.buffer.update(cx, |buffer, cx| {
2446 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2447 });
2448
2449 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2450 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2451 let snapshot = this.buffer.read(cx).read(cx);
2452 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2453 .zip(new_selection_deltas)
2454 .map(|(selection, delta)| Selection {
2455 id: selection.id,
2456 start: selection.start + delta,
2457 end: selection.end + delta,
2458 reversed: selection.reversed,
2459 goal: SelectionGoal::None,
2460 })
2461 .collect::<Vec<_>>();
2462
2463 let mut i = 0;
2464 for (position, delta, selection_id, pair) in new_autoclose_regions {
2465 let position = position.to_offset(&snapshot) + delta;
2466 let start = snapshot.anchor_before(position);
2467 let end = snapshot.anchor_after(position);
2468 while let Some(existing_state) = this.autoclose_regions.get(i) {
2469 match existing_state.range.start.cmp(&start, &snapshot) {
2470 Ordering::Less => i += 1,
2471 Ordering::Greater => break,
2472 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2473 Ordering::Less => i += 1,
2474 Ordering::Equal => break,
2475 Ordering::Greater => break,
2476 },
2477 }
2478 }
2479 this.autoclose_regions.insert(
2480 i,
2481 AutocloseRegion {
2482 selection_id,
2483 range: start..end,
2484 pair,
2485 },
2486 );
2487 }
2488
2489 drop(snapshot);
2490 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2491 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2492
2493 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
2494 if let Some(on_type_format_task) =
2495 this.trigger_on_type_formatting(text.to_string(), cx)
2496 {
2497 on_type_format_task.detach_and_log_err(cx);
2498 }
2499 }
2500
2501 if had_active_copilot_suggestion {
2502 this.refresh_copilot_suggestions(true, cx);
2503 if !this.has_active_copilot_suggestion(cx) {
2504 this.trigger_completion_on_input(&text, cx);
2505 }
2506 } else {
2507 this.trigger_completion_on_input(&text, cx);
2508 this.refresh_copilot_suggestions(true, cx);
2509 }
2510 });
2511 }
2512
2513 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2514 self.transact(cx, |this, cx| {
2515 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2516 let selections = this.selections.all::<usize>(cx);
2517 let multi_buffer = this.buffer.read(cx);
2518 let buffer = multi_buffer.snapshot(cx);
2519 selections
2520 .iter()
2521 .map(|selection| {
2522 let start_point = selection.start.to_point(&buffer);
2523 let mut indent = buffer.indent_size_for_line(start_point.row);
2524 indent.len = cmp::min(indent.len, start_point.column);
2525 let start = selection.start;
2526 let end = selection.end;
2527 let is_cursor = start == end;
2528 let language_scope = buffer.language_scope_at(start);
2529 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2530 &language_scope
2531 {
2532 let leading_whitespace_len = buffer
2533 .reversed_chars_at(start)
2534 .take_while(|c| c.is_whitespace() && *c != '\n')
2535 .map(|c| c.len_utf8())
2536 .sum::<usize>();
2537
2538 let trailing_whitespace_len = buffer
2539 .chars_at(end)
2540 .take_while(|c| c.is_whitespace() && *c != '\n')
2541 .map(|c| c.len_utf8())
2542 .sum::<usize>();
2543
2544 let insert_extra_newline =
2545 language.brackets().any(|(pair, enabled)| {
2546 let pair_start = pair.start.trim_end();
2547 let pair_end = pair.end.trim_start();
2548
2549 enabled
2550 && pair.newline
2551 && buffer.contains_str_at(
2552 end + trailing_whitespace_len,
2553 pair_end,
2554 )
2555 && buffer.contains_str_at(
2556 (start - leading_whitespace_len)
2557 .saturating_sub(pair_start.len()),
2558 pair_start,
2559 )
2560 });
2561 // Comment extension on newline is allowed only for cursor selections
2562 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2563 let is_comment_extension_enabled =
2564 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2565 is_cursor && is_comment_extension_enabled
2566 });
2567 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2568 let max_len_of_delimiter =
2569 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2570 let (snapshot, range) =
2571 buffer.buffer_line_for_row(start_point.row)?;
2572
2573 let mut index_of_first_non_whitespace = 0;
2574 let comment_candidate = snapshot
2575 .chars_for_range(range)
2576 .skip_while(|c| {
2577 let should_skip = c.is_whitespace();
2578 if should_skip {
2579 index_of_first_non_whitespace += 1;
2580 }
2581 should_skip
2582 })
2583 .take(max_len_of_delimiter)
2584 .collect::<String>();
2585 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2586 comment_candidate.starts_with(comment_prefix.as_ref())
2587 })?;
2588 let cursor_is_placed_after_comment_marker =
2589 index_of_first_non_whitespace + comment_prefix.len()
2590 <= start_point.column as usize;
2591 if cursor_is_placed_after_comment_marker {
2592 Some(comment_prefix.clone())
2593 } else {
2594 None
2595 }
2596 };
2597 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2598 get_comment_delimiter(delimiters)
2599 } else {
2600 None
2601 };
2602 (comment_delimiter, insert_extra_newline)
2603 } else {
2604 (None, false)
2605 };
2606
2607 let capacity_for_delimiter = comment_delimiter
2608 .as_deref()
2609 .map(str::len)
2610 .unwrap_or_default();
2611 let mut new_text =
2612 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2613 new_text.push_str("\n");
2614 new_text.extend(indent.chars());
2615 if let Some(delimiter) = &comment_delimiter {
2616 new_text.push_str(&delimiter);
2617 }
2618 if insert_extra_newline {
2619 new_text = new_text.repeat(2);
2620 }
2621
2622 let anchor = buffer.anchor_after(end);
2623 let new_selection = selection.map(|_| anchor);
2624 (
2625 (start..end, new_text),
2626 (insert_extra_newline, new_selection),
2627 )
2628 })
2629 .unzip()
2630 };
2631
2632 this.edit_with_autoindent(edits, cx);
2633 let buffer = this.buffer.read(cx).snapshot(cx);
2634 let new_selections = selection_fixup_info
2635 .into_iter()
2636 .map(|(extra_newline_inserted, new_selection)| {
2637 let mut cursor = new_selection.end.to_point(&buffer);
2638 if extra_newline_inserted {
2639 cursor.row -= 1;
2640 cursor.column = buffer.line_len(cursor.row);
2641 }
2642 new_selection.map(|_| cursor)
2643 })
2644 .collect();
2645
2646 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2647 this.refresh_copilot_suggestions(true, cx);
2648 });
2649 }
2650
2651 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2652 let buffer = self.buffer.read(cx);
2653 let snapshot = buffer.snapshot(cx);
2654
2655 let mut edits = Vec::new();
2656 let mut rows = Vec::new();
2657 let mut rows_inserted = 0;
2658
2659 for selection in self.selections.all_adjusted(cx) {
2660 let cursor = selection.head();
2661 let row = cursor.row;
2662
2663 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2664
2665 let newline = "\n".to_string();
2666 edits.push((start_of_line..start_of_line, newline));
2667
2668 rows.push(row + rows_inserted);
2669 rows_inserted += 1;
2670 }
2671
2672 self.transact(cx, |editor, cx| {
2673 editor.edit(edits, cx);
2674
2675 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2676 let mut index = 0;
2677 s.move_cursors_with(|map, _, _| {
2678 let row = rows[index];
2679 index += 1;
2680
2681 let point = Point::new(row, 0);
2682 let boundary = map.next_line_boundary(point).1;
2683 let clipped = map.clip_point(boundary, Bias::Left);
2684
2685 (clipped, SelectionGoal::None)
2686 });
2687 });
2688
2689 let mut indent_edits = Vec::new();
2690 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2691 for row in rows {
2692 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2693 for (row, indent) in indents {
2694 if indent.len == 0 {
2695 continue;
2696 }
2697
2698 let text = match indent.kind {
2699 IndentKind::Space => " ".repeat(indent.len as usize),
2700 IndentKind::Tab => "\t".repeat(indent.len as usize),
2701 };
2702 let point = Point::new(row, 0);
2703 indent_edits.push((point..point, text));
2704 }
2705 }
2706 editor.edit(indent_edits, cx);
2707 });
2708 }
2709
2710 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2711 let buffer = self.buffer.read(cx);
2712 let snapshot = buffer.snapshot(cx);
2713
2714 let mut edits = Vec::new();
2715 let mut rows = Vec::new();
2716 let mut rows_inserted = 0;
2717
2718 for selection in self.selections.all_adjusted(cx) {
2719 let cursor = selection.head();
2720 let row = cursor.row;
2721
2722 let point = Point::new(row + 1, 0);
2723 let start_of_line = snapshot.clip_point(point, Bias::Left);
2724
2725 let newline = "\n".to_string();
2726 edits.push((start_of_line..start_of_line, newline));
2727
2728 rows_inserted += 1;
2729 rows.push(row + rows_inserted);
2730 }
2731
2732 self.transact(cx, |editor, cx| {
2733 editor.edit(edits, cx);
2734
2735 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2736 let mut index = 0;
2737 s.move_cursors_with(|map, _, _| {
2738 let row = rows[index];
2739 index += 1;
2740
2741 let point = Point::new(row, 0);
2742 let boundary = map.next_line_boundary(point).1;
2743 let clipped = map.clip_point(boundary, Bias::Left);
2744
2745 (clipped, SelectionGoal::None)
2746 });
2747 });
2748
2749 let mut indent_edits = Vec::new();
2750 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2751 for row in rows {
2752 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2753 for (row, indent) in indents {
2754 if indent.len == 0 {
2755 continue;
2756 }
2757
2758 let text = match indent.kind {
2759 IndentKind::Space => " ".repeat(indent.len as usize),
2760 IndentKind::Tab => "\t".repeat(indent.len as usize),
2761 };
2762 let point = Point::new(row, 0);
2763 indent_edits.push((point..point, text));
2764 }
2765 }
2766 editor.edit(indent_edits, cx);
2767 });
2768 }
2769
2770 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2771 self.insert_with_autoindent_mode(
2772 text,
2773 Some(AutoindentMode::Block {
2774 original_indent_columns: Vec::new(),
2775 }),
2776 cx,
2777 );
2778 }
2779
2780 fn insert_with_autoindent_mode(
2781 &mut self,
2782 text: &str,
2783 autoindent_mode: Option<AutoindentMode>,
2784 cx: &mut ViewContext<Self>,
2785 ) {
2786 if self.read_only(cx) {
2787 return;
2788 }
2789
2790 let text: Arc<str> = text.into();
2791 self.transact(cx, |this, cx| {
2792 let old_selections = this.selections.all_adjusted(cx);
2793 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2794 let anchors = {
2795 let snapshot = buffer.read(cx);
2796 old_selections
2797 .iter()
2798 .map(|s| {
2799 let anchor = snapshot.anchor_after(s.head());
2800 s.map(|_| anchor)
2801 })
2802 .collect::<Vec<_>>()
2803 };
2804 buffer.edit(
2805 old_selections
2806 .iter()
2807 .map(|s| (s.start..s.end, text.clone())),
2808 autoindent_mode,
2809 cx,
2810 );
2811 anchors
2812 });
2813
2814 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2815 s.select_anchors(selection_anchors);
2816 })
2817 });
2818 }
2819
2820 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2821 if !EditorSettings::get_global(cx).show_completions_on_input {
2822 return;
2823 }
2824
2825 let selection = self.selections.newest_anchor();
2826 if self
2827 .buffer
2828 .read(cx)
2829 .is_completion_trigger(selection.head(), text, cx)
2830 {
2831 self.show_completions(&ShowCompletions, cx);
2832 } else {
2833 self.hide_context_menu(cx);
2834 }
2835 }
2836
2837 /// If any empty selections is touching the start of its innermost containing autoclose
2838 /// region, expand it to select the brackets.
2839 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2840 let selections = self.selections.all::<usize>(cx);
2841 let buffer = self.buffer.read(cx).read(cx);
2842 let mut new_selections = Vec::new();
2843 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2844 if let (Some(region), true) = (region, selection.is_empty()) {
2845 let mut range = region.range.to_offset(&buffer);
2846 if selection.start == range.start {
2847 if range.start >= region.pair.start.len() {
2848 range.start -= region.pair.start.len();
2849 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2850 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2851 range.end += region.pair.end.len();
2852 selection.start = range.start;
2853 selection.end = range.end;
2854 }
2855 }
2856 }
2857 }
2858 }
2859 new_selections.push(selection);
2860 }
2861
2862 drop(buffer);
2863 self.change_selections(None, cx, |selections| selections.select(new_selections));
2864 }
2865
2866 /// Iterate the given selections, and for each one, find the smallest surrounding
2867 /// autoclose region. This uses the ordering of the selections and the autoclose
2868 /// regions to avoid repeated comparisons.
2869 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2870 &'a self,
2871 selections: impl IntoIterator<Item = Selection<D>>,
2872 buffer: &'a MultiBufferSnapshot,
2873 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2874 let mut i = 0;
2875 let mut regions = self.autoclose_regions.as_slice();
2876 selections.into_iter().map(move |selection| {
2877 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2878
2879 let mut enclosing = None;
2880 while let Some(pair_state) = regions.get(i) {
2881 if pair_state.range.end.to_offset(buffer) < range.start {
2882 regions = ®ions[i + 1..];
2883 i = 0;
2884 } else if pair_state.range.start.to_offset(buffer) > range.end {
2885 break;
2886 } else {
2887 if pair_state.selection_id == selection.id {
2888 enclosing = Some(pair_state);
2889 }
2890 i += 1;
2891 }
2892 }
2893
2894 (selection.clone(), enclosing)
2895 })
2896 }
2897
2898 /// Remove any autoclose regions that no longer contain their selection.
2899 fn invalidate_autoclose_regions(
2900 &mut self,
2901 mut selections: &[Selection<Anchor>],
2902 buffer: &MultiBufferSnapshot,
2903 ) {
2904 self.autoclose_regions.retain(|state| {
2905 let mut i = 0;
2906 while let Some(selection) = selections.get(i) {
2907 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2908 selections = &selections[1..];
2909 continue;
2910 }
2911 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2912 break;
2913 }
2914 if selection.id == state.selection_id {
2915 return true;
2916 } else {
2917 i += 1;
2918 }
2919 }
2920 false
2921 });
2922 }
2923
2924 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2925 let offset = position.to_offset(buffer);
2926 let (word_range, kind) = buffer.surrounding_word(offset);
2927 if offset > word_range.start && kind == Some(CharKind::Word) {
2928 Some(
2929 buffer
2930 .text_for_range(word_range.start..offset)
2931 .collect::<String>(),
2932 )
2933 } else {
2934 None
2935 }
2936 }
2937
2938 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
2939 self.refresh_inlay_hints(
2940 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
2941 cx,
2942 );
2943 }
2944
2945 pub fn inlay_hints_enabled(&self) -> bool {
2946 self.inlay_hint_cache.enabled
2947 }
2948
2949 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
2950 if self.project.is_none() || self.mode != EditorMode::Full {
2951 return;
2952 }
2953
2954 let reason_description = reason.description();
2955 let (invalidate_cache, required_languages) = match reason {
2956 InlayHintRefreshReason::Toggle(enabled) => {
2957 self.inlay_hint_cache.enabled = enabled;
2958 if enabled {
2959 (InvalidationStrategy::RefreshRequested, None)
2960 } else {
2961 self.inlay_hint_cache.clear();
2962 self.splice_inlay_hints(
2963 self.visible_inlay_hints(cx)
2964 .iter()
2965 .map(|inlay| inlay.id)
2966 .collect(),
2967 Vec::new(),
2968 cx,
2969 );
2970 return;
2971 }
2972 }
2973 InlayHintRefreshReason::SettingsChange(new_settings) => {
2974 match self.inlay_hint_cache.update_settings(
2975 &self.buffer,
2976 new_settings,
2977 self.visible_inlay_hints(cx),
2978 cx,
2979 ) {
2980 ControlFlow::Break(Some(InlaySplice {
2981 to_remove,
2982 to_insert,
2983 })) => {
2984 self.splice_inlay_hints(to_remove, to_insert, cx);
2985 return;
2986 }
2987 ControlFlow::Break(None) => return,
2988 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
2989 }
2990 }
2991 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
2992 if let Some(InlaySplice {
2993 to_remove,
2994 to_insert,
2995 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
2996 {
2997 self.splice_inlay_hints(to_remove, to_insert, cx);
2998 }
2999 return;
3000 }
3001 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3002 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3003 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3004 }
3005 InlayHintRefreshReason::RefreshRequested => {
3006 (InvalidationStrategy::RefreshRequested, None)
3007 }
3008 };
3009
3010 if let Some(InlaySplice {
3011 to_remove,
3012 to_insert,
3013 }) = self.inlay_hint_cache.spawn_hint_refresh(
3014 reason_description,
3015 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3016 invalidate_cache,
3017 cx,
3018 ) {
3019 self.splice_inlay_hints(to_remove, to_insert, cx);
3020 }
3021 }
3022
3023 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3024 self.display_map
3025 .read(cx)
3026 .current_inlays()
3027 .filter(move |inlay| {
3028 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3029 })
3030 .cloned()
3031 .collect()
3032 }
3033
3034 pub fn excerpts_for_inlay_hints_query(
3035 &self,
3036 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3037 cx: &mut ViewContext<Editor>,
3038 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3039 let Some(project) = self.project.as_ref() else {
3040 return HashMap::default();
3041 };
3042 let project = project.read(cx);
3043 let multi_buffer = self.buffer().read(cx);
3044 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3045 let multi_buffer_visible_start = self
3046 .scroll_manager
3047 .anchor()
3048 .anchor
3049 .to_point(&multi_buffer_snapshot);
3050 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3051 multi_buffer_visible_start
3052 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3053 Bias::Left,
3054 );
3055 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3056 multi_buffer
3057 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3058 .into_iter()
3059 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3060 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3061 let buffer = buffer_handle.read(cx);
3062 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3063 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3064 let worktree_entry = buffer_worktree
3065 .read(cx)
3066 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3067 if worktree_entry.is_ignored {
3068 return None;
3069 }
3070
3071 let language = buffer.language()?;
3072 if let Some(restrict_to_languages) = restrict_to_languages {
3073 if !restrict_to_languages.contains(language) {
3074 return None;
3075 }
3076 }
3077 Some((
3078 excerpt_id,
3079 (
3080 buffer_handle,
3081 buffer.version().clone(),
3082 excerpt_visible_range,
3083 ),
3084 ))
3085 })
3086 .collect()
3087 }
3088
3089 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3090 TextLayoutDetails {
3091 text_system: cx.text_system().clone(),
3092 editor_style: self.style.clone().unwrap(),
3093 rem_size: cx.rem_size(),
3094 scroll_anchor: self.scroll_manager.anchor(),
3095 visible_rows: self.visible_line_count(),
3096 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3097 }
3098 }
3099
3100 fn splice_inlay_hints(
3101 &self,
3102 to_remove: Vec<InlayId>,
3103 to_insert: Vec<Inlay>,
3104 cx: &mut ViewContext<Self>,
3105 ) {
3106 self.display_map.update(cx, |display_map, cx| {
3107 display_map.splice_inlays(to_remove, to_insert, cx);
3108 });
3109 cx.notify();
3110 }
3111
3112 fn trigger_on_type_formatting(
3113 &self,
3114 input: String,
3115 cx: &mut ViewContext<Self>,
3116 ) -> Option<Task<Result<()>>> {
3117 if input.len() != 1 {
3118 return None;
3119 }
3120
3121 let project = self.project.as_ref()?;
3122 let position = self.selections.newest_anchor().head();
3123 let (buffer, buffer_position) = self
3124 .buffer
3125 .read(cx)
3126 .text_anchor_for_position(position.clone(), cx)?;
3127
3128 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3129 // hence we do LSP request & edit on host side only — add formats to host's history.
3130 let push_to_lsp_host_history = true;
3131 // If this is not the host, append its history with new edits.
3132 let push_to_client_history = project.read(cx).is_remote();
3133
3134 let on_type_formatting = project.update(cx, |project, cx| {
3135 project.on_type_format(
3136 buffer.clone(),
3137 buffer_position,
3138 input,
3139 push_to_lsp_host_history,
3140 cx,
3141 )
3142 });
3143 Some(cx.spawn(|editor, mut cx| async move {
3144 if let Some(transaction) = on_type_formatting.await? {
3145 if push_to_client_history {
3146 buffer
3147 .update(&mut cx, |buffer, _| {
3148 buffer.push_transaction(transaction, Instant::now());
3149 })
3150 .ok();
3151 }
3152 editor.update(&mut cx, |editor, cx| {
3153 editor.refresh_document_highlights(cx);
3154 })?;
3155 }
3156 Ok(())
3157 }))
3158 }
3159
3160 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3161 if self.pending_rename.is_some() {
3162 return;
3163 }
3164
3165 let Some(provider) = self.completion_provider.as_ref() else {
3166 return;
3167 };
3168
3169 let position = self.selections.newest_anchor().head();
3170 let (buffer, buffer_position) = if let Some(output) = self
3171 .buffer
3172 .read(cx)
3173 .text_anchor_for_position(position.clone(), cx)
3174 {
3175 output
3176 } else {
3177 return;
3178 };
3179
3180 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3181 let completions = provider.completions(&buffer, buffer_position, cx);
3182
3183 let id = post_inc(&mut self.next_completion_id);
3184 let task = cx.spawn(|this, mut cx| {
3185 async move {
3186 let completions = completions.await.log_err();
3187 let menu = if let Some(completions) = completions {
3188 let mut menu = CompletionsMenu {
3189 id,
3190 initial_position: position,
3191 match_candidates: completions
3192 .iter()
3193 .enumerate()
3194 .map(|(id, completion)| {
3195 StringMatchCandidate::new(
3196 id,
3197 completion.label.text[completion.label.filter_range.clone()]
3198 .into(),
3199 )
3200 })
3201 .collect(),
3202 buffer,
3203 completions: Arc::new(RwLock::new(completions.into())),
3204 matches: Vec::new().into(),
3205 selected_item: 0,
3206 scroll_handle: UniformListScrollHandle::new(),
3207 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3208 DebouncedDelay::new(),
3209 )),
3210 };
3211 menu.filter(query.as_deref(), cx.background_executor().clone())
3212 .await;
3213
3214 if menu.matches.is_empty() {
3215 None
3216 } else {
3217 this.update(&mut cx, |editor, cx| {
3218 let completions = menu.completions.clone();
3219 let matches = menu.matches.clone();
3220
3221 let delay_ms = EditorSettings::get_global(cx)
3222 .completion_documentation_secondary_query_debounce;
3223 let delay = Duration::from_millis(delay_ms);
3224
3225 editor
3226 .completion_documentation_pre_resolve_debounce
3227 .fire_new(delay, cx, |editor, cx| {
3228 CompletionsMenu::pre_resolve_completion_documentation(
3229 completions,
3230 matches,
3231 editor,
3232 cx,
3233 )
3234 });
3235 })
3236 .ok();
3237 Some(menu)
3238 }
3239 } else {
3240 None
3241 };
3242
3243 this.update(&mut cx, |this, cx| {
3244 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3245
3246 let mut context_menu = this.context_menu.write();
3247 match context_menu.as_ref() {
3248 None => {}
3249
3250 Some(ContextMenu::Completions(prev_menu)) => {
3251 if prev_menu.id > id {
3252 return;
3253 }
3254 }
3255
3256 _ => return,
3257 }
3258
3259 if this.focus_handle.is_focused(cx) && menu.is_some() {
3260 let menu = menu.unwrap();
3261 *context_menu = Some(ContextMenu::Completions(menu));
3262 drop(context_menu);
3263 this.discard_copilot_suggestion(cx);
3264 cx.notify();
3265 } else if this.completion_tasks.len() <= 1 {
3266 // If there are no more completion tasks and the last menu was
3267 // empty, we should hide it. If it was already hidden, we should
3268 // also show the copilot suggestion when available.
3269 drop(context_menu);
3270 if this.hide_context_menu(cx).is_none() {
3271 this.update_visible_copilot_suggestion(cx);
3272 }
3273 }
3274 })?;
3275
3276 Ok::<_, anyhow::Error>(())
3277 }
3278 .log_err()
3279 });
3280
3281 self.completion_tasks.push((id, task));
3282 }
3283
3284 pub fn confirm_completion(
3285 &mut self,
3286 action: &ConfirmCompletion,
3287 cx: &mut ViewContext<Self>,
3288 ) -> Option<Task<Result<()>>> {
3289 use language::ToOffset as _;
3290
3291 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3292 menu
3293 } else {
3294 return None;
3295 };
3296
3297 let mat = completions_menu
3298 .matches
3299 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3300 let buffer_handle = completions_menu.buffer;
3301 let completions = completions_menu.completions.read();
3302 let completion = completions.get(mat.candidate_id)?;
3303 cx.stop_propagation();
3304
3305 let snippet;
3306 let text;
3307 if completion.is_snippet() {
3308 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3309 text = snippet.as_ref().unwrap().text.clone();
3310 } else {
3311 snippet = None;
3312 text = completion.new_text.clone();
3313 };
3314 let selections = self.selections.all::<usize>(cx);
3315 let buffer = buffer_handle.read(cx);
3316 let old_range = completion.old_range.to_offset(buffer);
3317 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3318
3319 let newest_selection = self.selections.newest_anchor();
3320 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3321 return None;
3322 }
3323
3324 let lookbehind = newest_selection
3325 .start
3326 .text_anchor
3327 .to_offset(buffer)
3328 .saturating_sub(old_range.start);
3329 let lookahead = old_range
3330 .end
3331 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3332 let mut common_prefix_len = old_text
3333 .bytes()
3334 .zip(text.bytes())
3335 .take_while(|(a, b)| a == b)
3336 .count();
3337
3338 let snapshot = self.buffer.read(cx).snapshot(cx);
3339 let mut range_to_replace: Option<Range<isize>> = None;
3340 let mut ranges = Vec::new();
3341 for selection in &selections {
3342 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3343 let start = selection.start.saturating_sub(lookbehind);
3344 let end = selection.end + lookahead;
3345 if selection.id == newest_selection.id {
3346 range_to_replace = Some(
3347 ((start + common_prefix_len) as isize - selection.start as isize)
3348 ..(end as isize - selection.start as isize),
3349 );
3350 }
3351 ranges.push(start + common_prefix_len..end);
3352 } else {
3353 common_prefix_len = 0;
3354 ranges.clear();
3355 ranges.extend(selections.iter().map(|s| {
3356 if s.id == newest_selection.id {
3357 range_to_replace = Some(
3358 old_range.start.to_offset_utf16(&snapshot).0 as isize
3359 - selection.start as isize
3360 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3361 - selection.start as isize,
3362 );
3363 old_range.clone()
3364 } else {
3365 s.start..s.end
3366 }
3367 }));
3368 break;
3369 }
3370 }
3371 let text = &text[common_prefix_len..];
3372
3373 cx.emit(EditorEvent::InputHandled {
3374 utf16_range_to_replace: range_to_replace,
3375 text: text.into(),
3376 });
3377
3378 self.transact(cx, |this, cx| {
3379 if let Some(mut snippet) = snippet {
3380 snippet.text = text.to_string();
3381 for tabstop in snippet.tabstops.iter_mut().flatten() {
3382 tabstop.start -= common_prefix_len as isize;
3383 tabstop.end -= common_prefix_len as isize;
3384 }
3385
3386 this.insert_snippet(&ranges, snippet, cx).log_err();
3387 } else {
3388 this.buffer.update(cx, |buffer, cx| {
3389 buffer.edit(
3390 ranges.iter().map(|range| (range.clone(), text)),
3391 this.autoindent_mode.clone(),
3392 cx,
3393 );
3394 });
3395 }
3396
3397 this.refresh_copilot_suggestions(true, cx);
3398 });
3399
3400 let provider = self.completion_provider.as_ref()?;
3401 let apply_edits = provider.apply_additional_edits_for_completion(
3402 buffer_handle,
3403 completion.clone(),
3404 true,
3405 cx,
3406 );
3407 Some(cx.foreground_executor().spawn(async move {
3408 apply_edits.await?;
3409 Ok(())
3410 }))
3411 }
3412
3413 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3414 let mut context_menu = self.context_menu.write();
3415 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3416 *context_menu = None;
3417 cx.notify();
3418 return;
3419 }
3420 drop(context_menu);
3421
3422 let deployed_from_indicator = action.deployed_from_indicator;
3423 let mut task = self.code_actions_task.take();
3424 cx.spawn(|this, mut cx| async move {
3425 while let Some(prev_task) = task {
3426 prev_task.await;
3427 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3428 }
3429
3430 this.update(&mut cx, |this, cx| {
3431 if this.focus_handle.is_focused(cx) {
3432 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3433 this.completion_tasks.clear();
3434 this.discard_copilot_suggestion(cx);
3435 *this.context_menu.write() =
3436 Some(ContextMenu::CodeActions(CodeActionsMenu {
3437 buffer,
3438 actions,
3439 selected_item: Default::default(),
3440 scroll_handle: UniformListScrollHandle::default(),
3441 deployed_from_indicator,
3442 }));
3443 cx.notify();
3444 }
3445 }
3446 })?;
3447
3448 Ok::<_, anyhow::Error>(())
3449 })
3450 .detach_and_log_err(cx);
3451 }
3452
3453 pub fn confirm_code_action(
3454 &mut self,
3455 action: &ConfirmCodeAction,
3456 cx: &mut ViewContext<Self>,
3457 ) -> Option<Task<Result<()>>> {
3458 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3459 menu
3460 } else {
3461 return None;
3462 };
3463 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3464 let action = actions_menu.actions.get(action_ix)?.clone();
3465 let title = action.lsp_action.title.clone();
3466 let buffer = actions_menu.buffer;
3467 let workspace = self.workspace()?;
3468
3469 let apply_code_actions = workspace
3470 .read(cx)
3471 .project()
3472 .clone()
3473 .update(cx, |project, cx| {
3474 project.apply_code_action(buffer, action, true, cx)
3475 });
3476 let workspace = workspace.downgrade();
3477 Some(cx.spawn(|editor, cx| async move {
3478 let project_transaction = apply_code_actions.await?;
3479 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3480 }))
3481 }
3482
3483 async fn open_project_transaction(
3484 this: &WeakView<Editor>,
3485 workspace: WeakView<Workspace>,
3486 transaction: ProjectTransaction,
3487 title: String,
3488 mut cx: AsyncWindowContext,
3489 ) -> Result<()> {
3490 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3491
3492 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3493 cx.update(|cx| {
3494 entries.sort_unstable_by_key(|(buffer, _)| {
3495 buffer.read(cx).file().map(|f| f.path().clone())
3496 });
3497 })?;
3498
3499 // If the project transaction's edits are all contained within this editor, then
3500 // avoid opening a new editor to display them.
3501
3502 if let Some((buffer, transaction)) = entries.first() {
3503 if entries.len() == 1 {
3504 let excerpt = this.update(&mut cx, |editor, cx| {
3505 editor
3506 .buffer()
3507 .read(cx)
3508 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3509 })?;
3510 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3511 if excerpted_buffer == *buffer {
3512 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3513 let excerpt_range = excerpt_range.to_offset(buffer);
3514 buffer
3515 .edited_ranges_for_transaction::<usize>(transaction)
3516 .all(|range| {
3517 excerpt_range.start <= range.start
3518 && excerpt_range.end >= range.end
3519 })
3520 })?;
3521
3522 if all_edits_within_excerpt {
3523 return Ok(());
3524 }
3525 }
3526 }
3527 }
3528 } else {
3529 return Ok(());
3530 }
3531
3532 let mut ranges_to_highlight = Vec::new();
3533 let excerpt_buffer = cx.new_model(|cx| {
3534 let mut multibuffer =
3535 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3536 for (buffer_handle, transaction) in &entries {
3537 let buffer = buffer_handle.read(cx);
3538 ranges_to_highlight.extend(
3539 multibuffer.push_excerpts_with_context_lines(
3540 buffer_handle.clone(),
3541 buffer
3542 .edited_ranges_for_transaction::<usize>(transaction)
3543 .collect(),
3544 1,
3545 cx,
3546 ),
3547 );
3548 }
3549 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3550 multibuffer
3551 })?;
3552
3553 workspace.update(&mut cx, |workspace, cx| {
3554 let project = workspace.project().clone();
3555 let editor =
3556 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3557 workspace.add_item(Box::new(editor.clone()), cx);
3558 editor.update(cx, |editor, cx| {
3559 editor.highlight_background::<Self>(
3560 ranges_to_highlight,
3561 |theme| theme.editor_highlighted_line_background,
3562 cx,
3563 );
3564 });
3565 })?;
3566
3567 Ok(())
3568 }
3569
3570 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3571 let project = self.project.clone()?;
3572 let buffer = self.buffer.read(cx);
3573 let newest_selection = self.selections.newest_anchor().clone();
3574 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3575 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3576 if start_buffer != end_buffer {
3577 return None;
3578 }
3579
3580 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3581 cx.background_executor()
3582 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3583 .await;
3584
3585 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3586 project.code_actions(&start_buffer, start..end, cx)
3587 }) {
3588 code_actions.await.log_err()
3589 } else {
3590 None
3591 };
3592
3593 this.update(&mut cx, |this, cx| {
3594 this.available_code_actions = actions.and_then(|actions| {
3595 if actions.is_empty() {
3596 None
3597 } else {
3598 Some((start_buffer, actions.into()))
3599 }
3600 });
3601 cx.notify();
3602 })
3603 .log_err();
3604 }));
3605 None
3606 }
3607
3608 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3609 if self.pending_rename.is_some() {
3610 return None;
3611 }
3612
3613 let project = self.project.clone()?;
3614 let buffer = self.buffer.read(cx);
3615 let newest_selection = self.selections.newest_anchor().clone();
3616 let cursor_position = newest_selection.head();
3617 let (cursor_buffer, cursor_buffer_position) =
3618 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3619 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3620 if cursor_buffer != tail_buffer {
3621 return None;
3622 }
3623
3624 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3625 cx.background_executor()
3626 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3627 .await;
3628
3629 let highlights = if let Some(highlights) = project
3630 .update(&mut cx, |project, cx| {
3631 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3632 })
3633 .log_err()
3634 {
3635 highlights.await.log_err()
3636 } else {
3637 None
3638 };
3639
3640 if let Some(highlights) = highlights {
3641 this.update(&mut cx, |this, cx| {
3642 if this.pending_rename.is_some() {
3643 return;
3644 }
3645
3646 let buffer_id = cursor_position.buffer_id;
3647 let buffer = this.buffer.read(cx);
3648 if !buffer
3649 .text_anchor_for_position(cursor_position, cx)
3650 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3651 {
3652 return;
3653 }
3654
3655 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3656 let mut write_ranges = Vec::new();
3657 let mut read_ranges = Vec::new();
3658 for highlight in highlights {
3659 for (excerpt_id, excerpt_range) in
3660 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3661 {
3662 let start = highlight
3663 .range
3664 .start
3665 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3666 let end = highlight
3667 .range
3668 .end
3669 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3670 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3671 continue;
3672 }
3673
3674 let range = Anchor {
3675 buffer_id,
3676 excerpt_id: excerpt_id.clone(),
3677 text_anchor: start,
3678 }..Anchor {
3679 buffer_id,
3680 excerpt_id,
3681 text_anchor: end,
3682 };
3683 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3684 write_ranges.push(range);
3685 } else {
3686 read_ranges.push(range);
3687 }
3688 }
3689 }
3690
3691 this.highlight_background::<DocumentHighlightRead>(
3692 read_ranges,
3693 |theme| theme.editor_document_highlight_read_background,
3694 cx,
3695 );
3696 this.highlight_background::<DocumentHighlightWrite>(
3697 write_ranges,
3698 |theme| theme.editor_document_highlight_write_background,
3699 cx,
3700 );
3701 cx.notify();
3702 })
3703 .log_err();
3704 }
3705 }));
3706 None
3707 }
3708
3709 fn refresh_copilot_suggestions(
3710 &mut self,
3711 debounce: bool,
3712 cx: &mut ViewContext<Self>,
3713 ) -> Option<()> {
3714 let copilot = Copilot::global(cx)?;
3715 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3716 self.clear_copilot_suggestions(cx);
3717 return None;
3718 }
3719 self.update_visible_copilot_suggestion(cx);
3720
3721 let snapshot = self.buffer.read(cx).snapshot(cx);
3722 let cursor = self.selections.newest_anchor().head();
3723 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3724 self.clear_copilot_suggestions(cx);
3725 return None;
3726 }
3727
3728 let (buffer, buffer_position) =
3729 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3730 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3731 if debounce {
3732 cx.background_executor()
3733 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3734 .await;
3735 }
3736
3737 let completions = copilot
3738 .update(&mut cx, |copilot, cx| {
3739 copilot.completions(&buffer, buffer_position, cx)
3740 })
3741 .log_err()
3742 .unwrap_or(Task::ready(Ok(Vec::new())))
3743 .await
3744 .log_err()
3745 .into_iter()
3746 .flatten()
3747 .collect_vec();
3748
3749 this.update(&mut cx, |this, cx| {
3750 if !completions.is_empty() {
3751 this.copilot_state.cycled = false;
3752 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3753 this.copilot_state.completions.clear();
3754 this.copilot_state.active_completion_index = 0;
3755 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3756 for completion in completions {
3757 this.copilot_state.push_completion(completion);
3758 }
3759 this.update_visible_copilot_suggestion(cx);
3760 }
3761 })
3762 .log_err()?;
3763 Some(())
3764 });
3765
3766 Some(())
3767 }
3768
3769 fn cycle_copilot_suggestions(
3770 &mut self,
3771 direction: Direction,
3772 cx: &mut ViewContext<Self>,
3773 ) -> Option<()> {
3774 let copilot = Copilot::global(cx)?;
3775 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3776 return None;
3777 }
3778
3779 if self.copilot_state.cycled {
3780 self.copilot_state.cycle_completions(direction);
3781 self.update_visible_copilot_suggestion(cx);
3782 } else {
3783 let cursor = self.selections.newest_anchor().head();
3784 let (buffer, buffer_position) =
3785 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3786 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3787 let completions = copilot
3788 .update(&mut cx, |copilot, cx| {
3789 copilot.completions_cycling(&buffer, buffer_position, cx)
3790 })
3791 .log_err()?
3792 .await;
3793
3794 this.update(&mut cx, |this, cx| {
3795 this.copilot_state.cycled = true;
3796 for completion in completions.log_err().into_iter().flatten() {
3797 this.copilot_state.push_completion(completion);
3798 }
3799 this.copilot_state.cycle_completions(direction);
3800 this.update_visible_copilot_suggestion(cx);
3801 })
3802 .log_err()?;
3803
3804 Some(())
3805 });
3806 }
3807
3808 Some(())
3809 }
3810
3811 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3812 if !self.has_active_copilot_suggestion(cx) {
3813 self.refresh_copilot_suggestions(false, cx);
3814 return;
3815 }
3816
3817 self.update_visible_copilot_suggestion(cx);
3818 }
3819
3820 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3821 self.show_cursor_names(cx);
3822 }
3823
3824 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3825 self.show_cursor_names = true;
3826 cx.notify();
3827 cx.spawn(|this, mut cx| async move {
3828 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3829 this.update(&mut cx, |this, cx| {
3830 this.show_cursor_names = false;
3831 cx.notify()
3832 })
3833 .ok()
3834 })
3835 .detach();
3836 }
3837
3838 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3839 if self.has_active_copilot_suggestion(cx) {
3840 self.cycle_copilot_suggestions(Direction::Next, cx);
3841 } else {
3842 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3843 if is_copilot_disabled {
3844 cx.propagate();
3845 }
3846 }
3847 }
3848
3849 fn previous_copilot_suggestion(
3850 &mut self,
3851 _: &copilot::PreviousSuggestion,
3852 cx: &mut ViewContext<Self>,
3853 ) {
3854 if self.has_active_copilot_suggestion(cx) {
3855 self.cycle_copilot_suggestions(Direction::Prev, cx);
3856 } else {
3857 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3858 if is_copilot_disabled {
3859 cx.propagate();
3860 }
3861 }
3862 }
3863
3864 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3865 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3866 if let Some((copilot, completion)) =
3867 Copilot::global(cx).zip(self.copilot_state.active_completion())
3868 {
3869 copilot
3870 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3871 .detach_and_log_err(cx);
3872
3873 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3874 }
3875 cx.emit(EditorEvent::InputHandled {
3876 utf16_range_to_replace: None,
3877 text: suggestion.text.to_string().into(),
3878 });
3879 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3880 cx.notify();
3881 true
3882 } else {
3883 false
3884 }
3885 }
3886
3887 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3888 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3889 if let Some(copilot) = Copilot::global(cx) {
3890 copilot
3891 .update(cx, |copilot, cx| {
3892 copilot.discard_completions(&self.copilot_state.completions, cx)
3893 })
3894 .detach_and_log_err(cx);
3895
3896 self.report_copilot_event(None, false, cx)
3897 }
3898
3899 self.display_map.update(cx, |map, cx| {
3900 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3901 });
3902 cx.notify();
3903 true
3904 } else {
3905 false
3906 }
3907 }
3908
3909 fn is_copilot_enabled_at(
3910 &self,
3911 location: Anchor,
3912 snapshot: &MultiBufferSnapshot,
3913 cx: &mut ViewContext<Self>,
3914 ) -> bool {
3915 let file = snapshot.file_at(location);
3916 let language = snapshot.language_at(location);
3917 let settings = all_language_settings(file, cx);
3918 self.show_copilot_suggestions
3919 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3920 }
3921
3922 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3923 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3924 let buffer = self.buffer.read(cx).read(cx);
3925 suggestion.position.is_valid(&buffer)
3926 } else {
3927 false
3928 }
3929 }
3930
3931 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3932 let suggestion = self.copilot_state.suggestion.take()?;
3933 self.display_map.update(cx, |map, cx| {
3934 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3935 });
3936 let buffer = self.buffer.read(cx).read(cx);
3937
3938 if suggestion.position.is_valid(&buffer) {
3939 Some(suggestion)
3940 } else {
3941 None
3942 }
3943 }
3944
3945 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
3946 let snapshot = self.buffer.read(cx).snapshot(cx);
3947 let selection = self.selections.newest_anchor();
3948 let cursor = selection.head();
3949
3950 if self.context_menu.read().is_some()
3951 || !self.completion_tasks.is_empty()
3952 || selection.start != selection.end
3953 {
3954 self.discard_copilot_suggestion(cx);
3955 } else if let Some(text) = self
3956 .copilot_state
3957 .text_for_active_completion(cursor, &snapshot)
3958 {
3959 let text = Rope::from(text);
3960 let mut to_remove = Vec::new();
3961 if let Some(suggestion) = self.copilot_state.suggestion.take() {
3962 to_remove.push(suggestion.id);
3963 }
3964
3965 let suggestion_inlay =
3966 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
3967 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
3968 self.display_map.update(cx, move |map, cx| {
3969 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
3970 });
3971 cx.notify();
3972 } else {
3973 self.discard_copilot_suggestion(cx);
3974 }
3975 }
3976
3977 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
3978 self.copilot_state = Default::default();
3979 self.discard_copilot_suggestion(cx);
3980 }
3981
3982 pub fn render_code_actions_indicator(
3983 &self,
3984 _style: &EditorStyle,
3985 is_active: bool,
3986 cx: &mut ViewContext<Self>,
3987 ) -> Option<IconButton> {
3988 if self.available_code_actions.is_some() {
3989 Some(
3990 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
3991 .icon_size(IconSize::Small)
3992 .icon_color(Color::Muted)
3993 .selected(is_active)
3994 .on_click(cx.listener(|editor, _e, cx| {
3995 editor.toggle_code_actions(
3996 &ToggleCodeActions {
3997 deployed_from_indicator: true,
3998 },
3999 cx,
4000 );
4001 })),
4002 )
4003 } else {
4004 None
4005 }
4006 }
4007
4008 pub fn render_fold_indicators(
4009 &self,
4010 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4011 _style: &EditorStyle,
4012 gutter_hovered: bool,
4013 _line_height: Pixels,
4014 _gutter_margin: Pixels,
4015 editor_view: View<Editor>,
4016 ) -> Vec<Option<IconButton>> {
4017 fold_data
4018 .iter()
4019 .enumerate()
4020 .map(|(ix, fold_data)| {
4021 fold_data
4022 .map(|(fold_status, buffer_row, active)| {
4023 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4024 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4025 .on_click({
4026 let view = editor_view.clone();
4027 move |_e, cx| {
4028 view.update(cx, |editor, cx| match fold_status {
4029 FoldStatus::Folded => {
4030 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4031 }
4032 FoldStatus::Foldable => {
4033 editor.fold_at(&FoldAt { buffer_row }, cx);
4034 }
4035 })
4036 }
4037 })
4038 .icon_color(ui::Color::Muted)
4039 .icon_size(ui::IconSize::Small)
4040 .selected(fold_status == FoldStatus::Folded)
4041 .selected_icon(ui::IconName::ChevronRight)
4042 .size(ui::ButtonSize::None)
4043 })
4044 })
4045 .flatten()
4046 })
4047 .collect()
4048 }
4049
4050 pub fn context_menu_visible(&self) -> bool {
4051 self.context_menu
4052 .read()
4053 .as_ref()
4054 .map_or(false, |menu| menu.visible())
4055 }
4056
4057 pub fn render_context_menu(
4058 &self,
4059 cursor_position: DisplayPoint,
4060 style: &EditorStyle,
4061 max_height: Pixels,
4062 cx: &mut ViewContext<Editor>,
4063 ) -> Option<(DisplayPoint, AnyElement)> {
4064 self.context_menu.read().as_ref().map(|menu| {
4065 menu.render(
4066 cursor_position,
4067 style,
4068 max_height,
4069 self.workspace.as_ref().map(|(w, _)| w.clone()),
4070 cx,
4071 )
4072 })
4073 }
4074
4075 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4076 cx.notify();
4077 self.completion_tasks.clear();
4078 let context_menu = self.context_menu.write().take();
4079 if context_menu.is_some() {
4080 self.update_visible_copilot_suggestion(cx);
4081 }
4082 context_menu
4083 }
4084
4085 pub fn insert_snippet(
4086 &mut self,
4087 insertion_ranges: &[Range<usize>],
4088 snippet: Snippet,
4089 cx: &mut ViewContext<Self>,
4090 ) -> Result<()> {
4091 let tabstops = self.buffer.update(cx, |buffer, cx| {
4092 let snippet_text: Arc<str> = snippet.text.clone().into();
4093 buffer.edit(
4094 insertion_ranges
4095 .iter()
4096 .cloned()
4097 .map(|range| (range, snippet_text.clone())),
4098 Some(AutoindentMode::EachLine),
4099 cx,
4100 );
4101
4102 let snapshot = &*buffer.read(cx);
4103 let snippet = &snippet;
4104 snippet
4105 .tabstops
4106 .iter()
4107 .map(|tabstop| {
4108 let mut tabstop_ranges = tabstop
4109 .iter()
4110 .flat_map(|tabstop_range| {
4111 let mut delta = 0_isize;
4112 insertion_ranges.iter().map(move |insertion_range| {
4113 let insertion_start = insertion_range.start as isize + delta;
4114 delta +=
4115 snippet.text.len() as isize - insertion_range.len() as isize;
4116
4117 let start = snapshot.anchor_before(
4118 (insertion_start + tabstop_range.start) as usize,
4119 );
4120 let end = snapshot
4121 .anchor_after((insertion_start + tabstop_range.end) as usize);
4122 start..end
4123 })
4124 })
4125 .collect::<Vec<_>>();
4126 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4127 tabstop_ranges
4128 })
4129 .collect::<Vec<_>>()
4130 });
4131
4132 if let Some(tabstop) = tabstops.first() {
4133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4134 s.select_ranges(tabstop.iter().cloned());
4135 });
4136 self.snippet_stack.push(SnippetState {
4137 active_index: 0,
4138 ranges: tabstops,
4139 });
4140 }
4141
4142 Ok(())
4143 }
4144
4145 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4146 self.move_to_snippet_tabstop(Bias::Right, cx)
4147 }
4148
4149 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4150 self.move_to_snippet_tabstop(Bias::Left, cx)
4151 }
4152
4153 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4154 if let Some(mut snippet) = self.snippet_stack.pop() {
4155 match bias {
4156 Bias::Left => {
4157 if snippet.active_index > 0 {
4158 snippet.active_index -= 1;
4159 } else {
4160 self.snippet_stack.push(snippet);
4161 return false;
4162 }
4163 }
4164 Bias::Right => {
4165 if snippet.active_index + 1 < snippet.ranges.len() {
4166 snippet.active_index += 1;
4167 } else {
4168 self.snippet_stack.push(snippet);
4169 return false;
4170 }
4171 }
4172 }
4173 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4174 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4175 s.select_anchor_ranges(current_ranges.iter().cloned())
4176 });
4177 // If snippet state is not at the last tabstop, push it back on the stack
4178 if snippet.active_index + 1 < snippet.ranges.len() {
4179 self.snippet_stack.push(snippet);
4180 }
4181 return true;
4182 }
4183 }
4184
4185 false
4186 }
4187
4188 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4189 self.transact(cx, |this, cx| {
4190 this.select_all(&SelectAll, cx);
4191 this.insert("", cx);
4192 });
4193 }
4194
4195 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4196 self.transact(cx, |this, cx| {
4197 this.select_autoclose_pair(cx);
4198 let mut selections = this.selections.all::<Point>(cx);
4199 if !this.selections.line_mode {
4200 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4201 for selection in &mut selections {
4202 if selection.is_empty() {
4203 let old_head = selection.head();
4204 let mut new_head =
4205 movement::left(&display_map, old_head.to_display_point(&display_map))
4206 .to_point(&display_map);
4207 if let Some((buffer, line_buffer_range)) = display_map
4208 .buffer_snapshot
4209 .buffer_line_for_row(old_head.row)
4210 {
4211 let indent_size =
4212 buffer.indent_size_for_line(line_buffer_range.start.row);
4213 let indent_len = match indent_size.kind {
4214 IndentKind::Space => {
4215 buffer.settings_at(line_buffer_range.start, cx).tab_size
4216 }
4217 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4218 };
4219 if old_head.column <= indent_size.len && old_head.column > 0 {
4220 let indent_len = indent_len.get();
4221 new_head = cmp::min(
4222 new_head,
4223 Point::new(
4224 old_head.row,
4225 ((old_head.column - 1) / indent_len) * indent_len,
4226 ),
4227 );
4228 }
4229 }
4230
4231 selection.set_head(new_head, SelectionGoal::None);
4232 }
4233 }
4234 }
4235
4236 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4237 this.insert("", cx);
4238 this.refresh_copilot_suggestions(true, cx);
4239 });
4240 }
4241
4242 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4243 self.transact(cx, |this, cx| {
4244 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4245 let line_mode = s.line_mode;
4246 s.move_with(|map, selection| {
4247 if selection.is_empty() && !line_mode {
4248 let cursor = movement::right(map, selection.head());
4249 selection.end = cursor;
4250 selection.reversed = true;
4251 selection.goal = SelectionGoal::None;
4252 }
4253 })
4254 });
4255 this.insert("", cx);
4256 this.refresh_copilot_suggestions(true, cx);
4257 });
4258 }
4259
4260 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4261 if self.move_to_prev_snippet_tabstop(cx) {
4262 return;
4263 }
4264
4265 self.outdent(&Outdent, cx);
4266 }
4267
4268 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4269 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4270 return;
4271 }
4272
4273 let mut selections = self.selections.all_adjusted(cx);
4274 let buffer = self.buffer.read(cx);
4275 let snapshot = buffer.snapshot(cx);
4276 let rows_iter = selections.iter().map(|s| s.head().row);
4277 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4278
4279 let mut edits = Vec::new();
4280 let mut prev_edited_row = 0;
4281 let mut row_delta = 0;
4282 for selection in &mut selections {
4283 if selection.start.row != prev_edited_row {
4284 row_delta = 0;
4285 }
4286 prev_edited_row = selection.end.row;
4287
4288 // If the selection is non-empty, then increase the indentation of the selected lines.
4289 if !selection.is_empty() {
4290 row_delta =
4291 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4292 continue;
4293 }
4294
4295 // If the selection is empty and the cursor is in the leading whitespace before the
4296 // suggested indentation, then auto-indent the line.
4297 let cursor = selection.head();
4298 let current_indent = snapshot.indent_size_for_line(cursor.row);
4299 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4300 if cursor.column < suggested_indent.len
4301 && cursor.column <= current_indent.len
4302 && current_indent.len <= suggested_indent.len
4303 {
4304 selection.start = Point::new(cursor.row, suggested_indent.len);
4305 selection.end = selection.start;
4306 if row_delta == 0 {
4307 edits.extend(Buffer::edit_for_indent_size_adjustment(
4308 cursor.row,
4309 current_indent,
4310 suggested_indent,
4311 ));
4312 row_delta = suggested_indent.len - current_indent.len;
4313 }
4314 continue;
4315 }
4316 }
4317
4318 // Accept copilot suggestion if there is only one selection and the cursor is not
4319 // in the leading whitespace.
4320 if self.selections.count() == 1
4321 && cursor.column >= current_indent.len
4322 && self.has_active_copilot_suggestion(cx)
4323 {
4324 self.accept_copilot_suggestion(cx);
4325 return;
4326 }
4327
4328 // Otherwise, insert a hard or soft tab.
4329 let settings = buffer.settings_at(cursor, cx);
4330 let tab_size = if settings.hard_tabs {
4331 IndentSize::tab()
4332 } else {
4333 let tab_size = settings.tab_size.get();
4334 let char_column = snapshot
4335 .text_for_range(Point::new(cursor.row, 0)..cursor)
4336 .flat_map(str::chars)
4337 .count()
4338 + row_delta as usize;
4339 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4340 IndentSize::spaces(chars_to_next_tab_stop)
4341 };
4342 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4343 selection.end = selection.start;
4344 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4345 row_delta += tab_size.len;
4346 }
4347
4348 self.transact(cx, |this, cx| {
4349 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4350 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4351 this.refresh_copilot_suggestions(true, cx);
4352 });
4353 }
4354
4355 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4356 let mut selections = self.selections.all::<Point>(cx);
4357 let mut prev_edited_row = 0;
4358 let mut row_delta = 0;
4359 let mut edits = Vec::new();
4360 let buffer = self.buffer.read(cx);
4361 let snapshot = buffer.snapshot(cx);
4362 for selection in &mut selections {
4363 if selection.start.row != prev_edited_row {
4364 row_delta = 0;
4365 }
4366 prev_edited_row = selection.end.row;
4367
4368 row_delta =
4369 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4370 }
4371
4372 self.transact(cx, |this, cx| {
4373 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4374 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4375 });
4376 }
4377
4378 fn indent_selection(
4379 buffer: &MultiBuffer,
4380 snapshot: &MultiBufferSnapshot,
4381 selection: &mut Selection<Point>,
4382 edits: &mut Vec<(Range<Point>, String)>,
4383 delta_for_start_row: u32,
4384 cx: &AppContext,
4385 ) -> u32 {
4386 let settings = buffer.settings_at(selection.start, cx);
4387 let tab_size = settings.tab_size.get();
4388 let indent_kind = if settings.hard_tabs {
4389 IndentKind::Tab
4390 } else {
4391 IndentKind::Space
4392 };
4393 let mut start_row = selection.start.row;
4394 let mut end_row = selection.end.row + 1;
4395
4396 // If a selection ends at the beginning of a line, don't indent
4397 // that last line.
4398 if selection.end.column == 0 {
4399 end_row -= 1;
4400 }
4401
4402 // Avoid re-indenting a row that has already been indented by a
4403 // previous selection, but still update this selection's column
4404 // to reflect that indentation.
4405 if delta_for_start_row > 0 {
4406 start_row += 1;
4407 selection.start.column += delta_for_start_row;
4408 if selection.end.row == selection.start.row {
4409 selection.end.column += delta_for_start_row;
4410 }
4411 }
4412
4413 let mut delta_for_end_row = 0;
4414 for row in start_row..end_row {
4415 let current_indent = snapshot.indent_size_for_line(row);
4416 let indent_delta = match (current_indent.kind, indent_kind) {
4417 (IndentKind::Space, IndentKind::Space) => {
4418 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4419 IndentSize::spaces(columns_to_next_tab_stop)
4420 }
4421 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4422 (_, IndentKind::Tab) => IndentSize::tab(),
4423 };
4424
4425 let row_start = Point::new(row, 0);
4426 edits.push((
4427 row_start..row_start,
4428 indent_delta.chars().collect::<String>(),
4429 ));
4430
4431 // Update this selection's endpoints to reflect the indentation.
4432 if row == selection.start.row {
4433 selection.start.column += indent_delta.len;
4434 }
4435 if row == selection.end.row {
4436 selection.end.column += indent_delta.len;
4437 delta_for_end_row = indent_delta.len;
4438 }
4439 }
4440
4441 if selection.start.row == selection.end.row {
4442 delta_for_start_row + delta_for_end_row
4443 } else {
4444 delta_for_end_row
4445 }
4446 }
4447
4448 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4449 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4450 let selections = self.selections.all::<Point>(cx);
4451 let mut deletion_ranges = Vec::new();
4452 let mut last_outdent = None;
4453 {
4454 let buffer = self.buffer.read(cx);
4455 let snapshot = buffer.snapshot(cx);
4456 for selection in &selections {
4457 let settings = buffer.settings_at(selection.start, cx);
4458 let tab_size = settings.tab_size.get();
4459 let mut rows = selection.spanned_rows(false, &display_map);
4460
4461 // Avoid re-outdenting a row that has already been outdented by a
4462 // previous selection.
4463 if let Some(last_row) = last_outdent {
4464 if last_row == rows.start {
4465 rows.start += 1;
4466 }
4467 }
4468
4469 for row in rows {
4470 let indent_size = snapshot.indent_size_for_line(row);
4471 if indent_size.len > 0 {
4472 let deletion_len = match indent_size.kind {
4473 IndentKind::Space => {
4474 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4475 if columns_to_prev_tab_stop == 0 {
4476 tab_size
4477 } else {
4478 columns_to_prev_tab_stop
4479 }
4480 }
4481 IndentKind::Tab => 1,
4482 };
4483 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4484 last_outdent = Some(row);
4485 }
4486 }
4487 }
4488 }
4489
4490 self.transact(cx, |this, cx| {
4491 this.buffer.update(cx, |buffer, cx| {
4492 let empty_str: Arc<str> = "".into();
4493 buffer.edit(
4494 deletion_ranges
4495 .into_iter()
4496 .map(|range| (range, empty_str.clone())),
4497 None,
4498 cx,
4499 );
4500 });
4501 let selections = this.selections.all::<usize>(cx);
4502 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4503 });
4504 }
4505
4506 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4507 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4508 let selections = self.selections.all::<Point>(cx);
4509
4510 let mut new_cursors = Vec::new();
4511 let mut edit_ranges = Vec::new();
4512 let mut selections = selections.iter().peekable();
4513 while let Some(selection) = selections.next() {
4514 let mut rows = selection.spanned_rows(false, &display_map);
4515 let goal_display_column = selection.head().to_display_point(&display_map).column();
4516
4517 // Accumulate contiguous regions of rows that we want to delete.
4518 while let Some(next_selection) = selections.peek() {
4519 let next_rows = next_selection.spanned_rows(false, &display_map);
4520 if next_rows.start <= rows.end {
4521 rows.end = next_rows.end;
4522 selections.next().unwrap();
4523 } else {
4524 break;
4525 }
4526 }
4527
4528 let buffer = &display_map.buffer_snapshot;
4529 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4530 let edit_end;
4531 let cursor_buffer_row;
4532 if buffer.max_point().row >= rows.end {
4533 // If there's a line after the range, delete the \n from the end of the row range
4534 // and position the cursor on the next line.
4535 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4536 cursor_buffer_row = rows.end;
4537 } else {
4538 // If there isn't a line after the range, delete the \n from the line before the
4539 // start of the row range and position the cursor there.
4540 edit_start = edit_start.saturating_sub(1);
4541 edit_end = buffer.len();
4542 cursor_buffer_row = rows.start.saturating_sub(1);
4543 }
4544
4545 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4546 *cursor.column_mut() =
4547 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4548
4549 new_cursors.push((
4550 selection.id,
4551 buffer.anchor_after(cursor.to_point(&display_map)),
4552 ));
4553 edit_ranges.push(edit_start..edit_end);
4554 }
4555
4556 self.transact(cx, |this, cx| {
4557 let buffer = this.buffer.update(cx, |buffer, cx| {
4558 let empty_str: Arc<str> = "".into();
4559 buffer.edit(
4560 edit_ranges
4561 .into_iter()
4562 .map(|range| (range, empty_str.clone())),
4563 None,
4564 cx,
4565 );
4566 buffer.snapshot(cx)
4567 });
4568 let new_selections = new_cursors
4569 .into_iter()
4570 .map(|(id, cursor)| {
4571 let cursor = cursor.to_point(&buffer);
4572 Selection {
4573 id,
4574 start: cursor,
4575 end: cursor,
4576 reversed: false,
4577 goal: SelectionGoal::None,
4578 }
4579 })
4580 .collect();
4581
4582 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4583 s.select(new_selections);
4584 });
4585 });
4586 }
4587
4588 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4589 let mut row_ranges = Vec::<Range<u32>>::new();
4590 for selection in self.selections.all::<Point>(cx) {
4591 let start = selection.start.row;
4592 let end = if selection.start.row == selection.end.row {
4593 selection.start.row + 1
4594 } else {
4595 selection.end.row
4596 };
4597
4598 if let Some(last_row_range) = row_ranges.last_mut() {
4599 if start <= last_row_range.end {
4600 last_row_range.end = end;
4601 continue;
4602 }
4603 }
4604 row_ranges.push(start..end);
4605 }
4606
4607 let snapshot = self.buffer.read(cx).snapshot(cx);
4608 let mut cursor_positions = Vec::new();
4609 for row_range in &row_ranges {
4610 let anchor = snapshot.anchor_before(Point::new(
4611 row_range.end - 1,
4612 snapshot.line_len(row_range.end - 1),
4613 ));
4614 cursor_positions.push(anchor.clone()..anchor);
4615 }
4616
4617 self.transact(cx, |this, cx| {
4618 for row_range in row_ranges.into_iter().rev() {
4619 for row in row_range.rev() {
4620 let end_of_line = Point::new(row, snapshot.line_len(row));
4621 let indent = snapshot.indent_size_for_line(row + 1);
4622 let start_of_next_line = Point::new(row + 1, indent.len);
4623
4624 let replace = if snapshot.line_len(row + 1) > indent.len {
4625 " "
4626 } else {
4627 ""
4628 };
4629
4630 this.buffer.update(cx, |buffer, cx| {
4631 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4632 });
4633 }
4634 }
4635
4636 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4637 s.select_anchor_ranges(cursor_positions)
4638 });
4639 });
4640 }
4641
4642 pub fn sort_lines_case_sensitive(
4643 &mut self,
4644 _: &SortLinesCaseSensitive,
4645 cx: &mut ViewContext<Self>,
4646 ) {
4647 self.manipulate_lines(cx, |lines| lines.sort())
4648 }
4649
4650 pub fn sort_lines_case_insensitive(
4651 &mut self,
4652 _: &SortLinesCaseInsensitive,
4653 cx: &mut ViewContext<Self>,
4654 ) {
4655 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4656 }
4657
4658 pub fn unique_lines_case_insensitive(
4659 &mut self,
4660 _: &UniqueLinesCaseInsensitive,
4661 cx: &mut ViewContext<Self>,
4662 ) {
4663 self.manipulate_lines(cx, |lines| {
4664 let mut seen = HashSet::default();
4665 lines.retain(|line| seen.insert(line.to_lowercase()));
4666 })
4667 }
4668
4669 pub fn unique_lines_case_sensitive(
4670 &mut self,
4671 _: &UniqueLinesCaseSensitive,
4672 cx: &mut ViewContext<Self>,
4673 ) {
4674 self.manipulate_lines(cx, |lines| {
4675 let mut seen = HashSet::default();
4676 lines.retain(|line| seen.insert(*line));
4677 })
4678 }
4679
4680 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4681 self.manipulate_lines(cx, |lines| lines.reverse())
4682 }
4683
4684 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4685 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4686 }
4687
4688 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4689 where
4690 Fn: FnMut(&mut Vec<&str>),
4691 {
4692 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4693 let buffer = self.buffer.read(cx).snapshot(cx);
4694
4695 let mut edits = Vec::new();
4696
4697 let selections = self.selections.all::<Point>(cx);
4698 let mut selections = selections.iter().peekable();
4699 let mut contiguous_row_selections = Vec::new();
4700 let mut new_selections = Vec::new();
4701 let mut added_lines = 0;
4702 let mut removed_lines = 0;
4703
4704 while let Some(selection) = selections.next() {
4705 let (start_row, end_row) = consume_contiguous_rows(
4706 &mut contiguous_row_selections,
4707 selection,
4708 &display_map,
4709 &mut selections,
4710 );
4711
4712 let start_point = Point::new(start_row, 0);
4713 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4714 let text = buffer
4715 .text_for_range(start_point..end_point)
4716 .collect::<String>();
4717
4718 let mut lines = text.split("\n").collect_vec();
4719
4720 let lines_before = lines.len();
4721 callback(&mut lines);
4722 let lines_after = lines.len();
4723
4724 edits.push((start_point..end_point, lines.join("\n")));
4725
4726 // Selections must change based on added and removed line count
4727 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4728 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4729 new_selections.push(Selection {
4730 id: selection.id,
4731 start: start_row,
4732 end: end_row,
4733 goal: SelectionGoal::None,
4734 reversed: selection.reversed,
4735 });
4736
4737 if lines_after > lines_before {
4738 added_lines += lines_after - lines_before;
4739 } else if lines_before > lines_after {
4740 removed_lines += lines_before - lines_after;
4741 }
4742 }
4743
4744 self.transact(cx, |this, cx| {
4745 let buffer = this.buffer.update(cx, |buffer, cx| {
4746 buffer.edit(edits, None, cx);
4747 buffer.snapshot(cx)
4748 });
4749
4750 // Recalculate offsets on newly edited buffer
4751 let new_selections = new_selections
4752 .iter()
4753 .map(|s| {
4754 let start_point = Point::new(s.start, 0);
4755 let end_point = Point::new(s.end, buffer.line_len(s.end));
4756 Selection {
4757 id: s.id,
4758 start: buffer.point_to_offset(start_point),
4759 end: buffer.point_to_offset(end_point),
4760 goal: s.goal,
4761 reversed: s.reversed,
4762 }
4763 })
4764 .collect();
4765
4766 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4767 s.select(new_selections);
4768 });
4769
4770 this.request_autoscroll(Autoscroll::fit(), cx);
4771 });
4772 }
4773
4774 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4775 self.manipulate_text(cx, |text| text.to_uppercase())
4776 }
4777
4778 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4779 self.manipulate_text(cx, |text| text.to_lowercase())
4780 }
4781
4782 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4783 self.manipulate_text(cx, |text| {
4784 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4785 // https://github.com/rutrum/convert-case/issues/16
4786 text.split("\n")
4787 .map(|line| line.to_case(Case::Title))
4788 .join("\n")
4789 })
4790 }
4791
4792 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4793 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4794 }
4795
4796 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4797 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4798 }
4799
4800 pub fn convert_to_upper_camel_case(
4801 &mut self,
4802 _: &ConvertToUpperCamelCase,
4803 cx: &mut ViewContext<Self>,
4804 ) {
4805 self.manipulate_text(cx, |text| {
4806 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4807 // https://github.com/rutrum/convert-case/issues/16
4808 text.split("\n")
4809 .map(|line| line.to_case(Case::UpperCamel))
4810 .join("\n")
4811 })
4812 }
4813
4814 pub fn convert_to_lower_camel_case(
4815 &mut self,
4816 _: &ConvertToLowerCamelCase,
4817 cx: &mut ViewContext<Self>,
4818 ) {
4819 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4820 }
4821
4822 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4823 where
4824 Fn: FnMut(&str) -> String,
4825 {
4826 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4827 let buffer = self.buffer.read(cx).snapshot(cx);
4828
4829 let mut new_selections = Vec::new();
4830 let mut edits = Vec::new();
4831 let mut selection_adjustment = 0i32;
4832
4833 for selection in self.selections.all::<usize>(cx) {
4834 let selection_is_empty = selection.is_empty();
4835
4836 let (start, end) = if selection_is_empty {
4837 let word_range = movement::surrounding_word(
4838 &display_map,
4839 selection.start.to_display_point(&display_map),
4840 );
4841 let start = word_range.start.to_offset(&display_map, Bias::Left);
4842 let end = word_range.end.to_offset(&display_map, Bias::Left);
4843 (start, end)
4844 } else {
4845 (selection.start, selection.end)
4846 };
4847
4848 let text = buffer.text_for_range(start..end).collect::<String>();
4849 let old_length = text.len() as i32;
4850 let text = callback(&text);
4851
4852 new_selections.push(Selection {
4853 start: (start as i32 - selection_adjustment) as usize,
4854 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4855 goal: SelectionGoal::None,
4856 ..selection
4857 });
4858
4859 selection_adjustment += old_length - text.len() as i32;
4860
4861 edits.push((start..end, text));
4862 }
4863
4864 self.transact(cx, |this, cx| {
4865 this.buffer.update(cx, |buffer, cx| {
4866 buffer.edit(edits, None, cx);
4867 });
4868
4869 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4870 s.select(new_selections);
4871 });
4872
4873 this.request_autoscroll(Autoscroll::fit(), cx);
4874 });
4875 }
4876
4877 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4878 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4879 let buffer = &display_map.buffer_snapshot;
4880 let selections = self.selections.all::<Point>(cx);
4881
4882 let mut edits = Vec::new();
4883 let mut selections_iter = selections.iter().peekable();
4884 while let Some(selection) = selections_iter.next() {
4885 // Avoid duplicating the same lines twice.
4886 let mut rows = selection.spanned_rows(false, &display_map);
4887
4888 while let Some(next_selection) = selections_iter.peek() {
4889 let next_rows = next_selection.spanned_rows(false, &display_map);
4890 if next_rows.start < rows.end {
4891 rows.end = next_rows.end;
4892 selections_iter.next().unwrap();
4893 } else {
4894 break;
4895 }
4896 }
4897
4898 // Copy the text from the selected row region and splice it at the start of the region.
4899 let start = Point::new(rows.start, 0);
4900 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4901 let text = buffer
4902 .text_for_range(start..end)
4903 .chain(Some("\n"))
4904 .collect::<String>();
4905 edits.push((start..start, text));
4906 }
4907
4908 self.transact(cx, |this, cx| {
4909 this.buffer.update(cx, |buffer, cx| {
4910 buffer.edit(edits, None, cx);
4911 });
4912
4913 this.request_autoscroll(Autoscroll::fit(), cx);
4914 });
4915 }
4916
4917 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4918 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4919 let buffer = self.buffer.read(cx).snapshot(cx);
4920
4921 let mut edits = Vec::new();
4922 let mut unfold_ranges = Vec::new();
4923 let mut refold_ranges = Vec::new();
4924
4925 let selections = self.selections.all::<Point>(cx);
4926 let mut selections = selections.iter().peekable();
4927 let mut contiguous_row_selections = Vec::new();
4928 let mut new_selections = Vec::new();
4929
4930 while let Some(selection) = selections.next() {
4931 // Find all the selections that span a contiguous row range
4932 let (start_row, end_row) = consume_contiguous_rows(
4933 &mut contiguous_row_selections,
4934 selection,
4935 &display_map,
4936 &mut selections,
4937 );
4938
4939 // Move the text spanned by the row range to be before the line preceding the row range
4940 if start_row > 0 {
4941 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
4942 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
4943 let insertion_point = display_map
4944 .prev_line_boundary(Point::new(start_row - 1, 0))
4945 .0;
4946
4947 // Don't move lines across excerpts
4948 if buffer
4949 .excerpt_boundaries_in_range((
4950 Bound::Excluded(insertion_point),
4951 Bound::Included(range_to_move.end),
4952 ))
4953 .next()
4954 .is_none()
4955 {
4956 let text = buffer
4957 .text_for_range(range_to_move.clone())
4958 .flat_map(|s| s.chars())
4959 .skip(1)
4960 .chain(['\n'])
4961 .collect::<String>();
4962
4963 edits.push((
4964 buffer.anchor_after(range_to_move.start)
4965 ..buffer.anchor_before(range_to_move.end),
4966 String::new(),
4967 ));
4968 let insertion_anchor = buffer.anchor_after(insertion_point);
4969 edits.push((insertion_anchor..insertion_anchor, text));
4970
4971 let row_delta = range_to_move.start.row - insertion_point.row + 1;
4972
4973 // Move selections up
4974 new_selections.extend(contiguous_row_selections.drain(..).map(
4975 |mut selection| {
4976 selection.start.row -= row_delta;
4977 selection.end.row -= row_delta;
4978 selection
4979 },
4980 ));
4981
4982 // Move folds up
4983 unfold_ranges.push(range_to_move.clone());
4984 for fold in display_map.folds_in_range(
4985 buffer.anchor_before(range_to_move.start)
4986 ..buffer.anchor_after(range_to_move.end),
4987 ) {
4988 let mut start = fold.range.start.to_point(&buffer);
4989 let mut end = fold.range.end.to_point(&buffer);
4990 start.row -= row_delta;
4991 end.row -= row_delta;
4992 refold_ranges.push(start..end);
4993 }
4994 }
4995 }
4996
4997 // If we didn't move line(s), preserve the existing selections
4998 new_selections.append(&mut contiguous_row_selections);
4999 }
5000
5001 self.transact(cx, |this, cx| {
5002 this.unfold_ranges(unfold_ranges, true, true, cx);
5003 this.buffer.update(cx, |buffer, cx| {
5004 for (range, text) in edits {
5005 buffer.edit([(range, text)], None, cx);
5006 }
5007 });
5008 this.fold_ranges(refold_ranges, true, cx);
5009 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5010 s.select(new_selections);
5011 })
5012 });
5013 }
5014
5015 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5016 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5017 let buffer = self.buffer.read(cx).snapshot(cx);
5018
5019 let mut edits = Vec::new();
5020 let mut unfold_ranges = Vec::new();
5021 let mut refold_ranges = Vec::new();
5022
5023 let selections = self.selections.all::<Point>(cx);
5024 let mut selections = selections.iter().peekable();
5025 let mut contiguous_row_selections = Vec::new();
5026 let mut new_selections = Vec::new();
5027
5028 while let Some(selection) = selections.next() {
5029 // Find all the selections that span a contiguous row range
5030 let (start_row, end_row) = consume_contiguous_rows(
5031 &mut contiguous_row_selections,
5032 selection,
5033 &display_map,
5034 &mut selections,
5035 );
5036
5037 // Move the text spanned by the row range to be after the last line of the row range
5038 if end_row <= buffer.max_point().row {
5039 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5040 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5041
5042 // Don't move lines across excerpt boundaries
5043 if buffer
5044 .excerpt_boundaries_in_range((
5045 Bound::Excluded(range_to_move.start),
5046 Bound::Included(insertion_point),
5047 ))
5048 .next()
5049 .is_none()
5050 {
5051 let mut text = String::from("\n");
5052 text.extend(buffer.text_for_range(range_to_move.clone()));
5053 text.pop(); // Drop trailing newline
5054 edits.push((
5055 buffer.anchor_after(range_to_move.start)
5056 ..buffer.anchor_before(range_to_move.end),
5057 String::new(),
5058 ));
5059 let insertion_anchor = buffer.anchor_after(insertion_point);
5060 edits.push((insertion_anchor..insertion_anchor, text));
5061
5062 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5063
5064 // Move selections down
5065 new_selections.extend(contiguous_row_selections.drain(..).map(
5066 |mut selection| {
5067 selection.start.row += row_delta;
5068 selection.end.row += row_delta;
5069 selection
5070 },
5071 ));
5072
5073 // Move folds down
5074 unfold_ranges.push(range_to_move.clone());
5075 for fold in display_map.folds_in_range(
5076 buffer.anchor_before(range_to_move.start)
5077 ..buffer.anchor_after(range_to_move.end),
5078 ) {
5079 let mut start = fold.range.start.to_point(&buffer);
5080 let mut end = fold.range.end.to_point(&buffer);
5081 start.row += row_delta;
5082 end.row += row_delta;
5083 refold_ranges.push(start..end);
5084 }
5085 }
5086 }
5087
5088 // If we didn't move line(s), preserve the existing selections
5089 new_selections.append(&mut contiguous_row_selections);
5090 }
5091
5092 self.transact(cx, |this, cx| {
5093 this.unfold_ranges(unfold_ranges, true, true, cx);
5094 this.buffer.update(cx, |buffer, cx| {
5095 for (range, text) in edits {
5096 buffer.edit([(range, text)], None, cx);
5097 }
5098 });
5099 this.fold_ranges(refold_ranges, true, cx);
5100 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5101 });
5102 }
5103
5104 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5105 let text_layout_details = &self.text_layout_details(cx);
5106 self.transact(cx, |this, cx| {
5107 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5108 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5109 let line_mode = s.line_mode;
5110 s.move_with(|display_map, selection| {
5111 if !selection.is_empty() || line_mode {
5112 return;
5113 }
5114
5115 let mut head = selection.head();
5116 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5117 if head.column() == display_map.line_len(head.row()) {
5118 transpose_offset = display_map
5119 .buffer_snapshot
5120 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5121 }
5122
5123 if transpose_offset == 0 {
5124 return;
5125 }
5126
5127 *head.column_mut() += 1;
5128 head = display_map.clip_point(head, Bias::Right);
5129 let goal = SelectionGoal::HorizontalPosition(
5130 display_map
5131 .x_for_display_point(head, &text_layout_details)
5132 .into(),
5133 );
5134 selection.collapse_to(head, goal);
5135
5136 let transpose_start = display_map
5137 .buffer_snapshot
5138 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5139 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5140 let transpose_end = display_map
5141 .buffer_snapshot
5142 .clip_offset(transpose_offset + 1, Bias::Right);
5143 if let Some(ch) =
5144 display_map.buffer_snapshot.chars_at(transpose_start).next()
5145 {
5146 edits.push((transpose_start..transpose_offset, String::new()));
5147 edits.push((transpose_end..transpose_end, ch.to_string()));
5148 }
5149 }
5150 });
5151 edits
5152 });
5153 this.buffer
5154 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5155 let selections = this.selections.all::<usize>(cx);
5156 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5157 s.select(selections);
5158 });
5159 });
5160 }
5161
5162 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5163 let mut text = String::new();
5164 let buffer = self.buffer.read(cx).snapshot(cx);
5165 let mut selections = self.selections.all::<Point>(cx);
5166 let mut clipboard_selections = Vec::with_capacity(selections.len());
5167 {
5168 let max_point = buffer.max_point();
5169 let mut is_first = true;
5170 for selection in &mut selections {
5171 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5172 if is_entire_line {
5173 selection.start = Point::new(selection.start.row, 0);
5174 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5175 selection.goal = SelectionGoal::None;
5176 }
5177 if is_first {
5178 is_first = false;
5179 } else {
5180 text += "\n";
5181 }
5182 let mut len = 0;
5183 for chunk in buffer.text_for_range(selection.start..selection.end) {
5184 text.push_str(chunk);
5185 len += chunk.len();
5186 }
5187 clipboard_selections.push(ClipboardSelection {
5188 len,
5189 is_entire_line,
5190 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5191 });
5192 }
5193 }
5194
5195 self.transact(cx, |this, cx| {
5196 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5197 s.select(selections);
5198 });
5199 this.insert("", cx);
5200 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5201 });
5202 }
5203
5204 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5205 let selections = self.selections.all::<Point>(cx);
5206 let buffer = self.buffer.read(cx).read(cx);
5207 let mut text = String::new();
5208
5209 let mut clipboard_selections = Vec::with_capacity(selections.len());
5210 {
5211 let max_point = buffer.max_point();
5212 let mut is_first = true;
5213 for selection in selections.iter() {
5214 let mut start = selection.start;
5215 let mut end = selection.end;
5216 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5217 if is_entire_line {
5218 start = Point::new(start.row, 0);
5219 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5220 }
5221 if is_first {
5222 is_first = false;
5223 } else {
5224 text += "\n";
5225 }
5226 let mut len = 0;
5227 for chunk in buffer.text_for_range(start..end) {
5228 text.push_str(chunk);
5229 len += chunk.len();
5230 }
5231 clipboard_selections.push(ClipboardSelection {
5232 len,
5233 is_entire_line,
5234 first_line_indent: buffer.indent_size_for_line(start.row).len,
5235 });
5236 }
5237 }
5238
5239 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5240 }
5241
5242 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5243 if self.read_only(cx) {
5244 return;
5245 }
5246
5247 self.transact(cx, |this, cx| {
5248 if let Some(item) = cx.read_from_clipboard() {
5249 let clipboard_text = Cow::Borrowed(item.text());
5250 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5251 let old_selections = this.selections.all::<usize>(cx);
5252 let all_selections_were_entire_line =
5253 clipboard_selections.iter().all(|s| s.is_entire_line);
5254 let first_selection_indent_column =
5255 clipboard_selections.first().map(|s| s.first_line_indent);
5256 if clipboard_selections.len() != old_selections.len() {
5257 clipboard_selections.drain(..);
5258 }
5259
5260 this.buffer.update(cx, |buffer, cx| {
5261 let snapshot = buffer.read(cx);
5262 let mut start_offset = 0;
5263 let mut edits = Vec::new();
5264 let mut original_indent_columns = Vec::new();
5265 let line_mode = this.selections.line_mode;
5266 for (ix, selection) in old_selections.iter().enumerate() {
5267 let to_insert;
5268 let entire_line;
5269 let original_indent_column;
5270 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5271 let end_offset = start_offset + clipboard_selection.len;
5272 to_insert = &clipboard_text[start_offset..end_offset];
5273 entire_line = clipboard_selection.is_entire_line;
5274 start_offset = end_offset + 1;
5275 original_indent_column =
5276 Some(clipboard_selection.first_line_indent);
5277 } else {
5278 to_insert = clipboard_text.as_str();
5279 entire_line = all_selections_were_entire_line;
5280 original_indent_column = first_selection_indent_column
5281 }
5282
5283 // If the corresponding selection was empty when this slice of the
5284 // clipboard text was written, then the entire line containing the
5285 // selection was copied. If this selection is also currently empty,
5286 // then paste the line before the current line of the buffer.
5287 let range = if selection.is_empty() && !line_mode && entire_line {
5288 let column = selection.start.to_point(&snapshot).column as usize;
5289 let line_start = selection.start - column;
5290 line_start..line_start
5291 } else {
5292 selection.range()
5293 };
5294
5295 edits.push((range, to_insert));
5296 original_indent_columns.extend(original_indent_column);
5297 }
5298 drop(snapshot);
5299
5300 buffer.edit(
5301 edits,
5302 Some(AutoindentMode::Block {
5303 original_indent_columns,
5304 }),
5305 cx,
5306 );
5307 });
5308
5309 let selections = this.selections.all::<usize>(cx);
5310 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5311 } else {
5312 this.insert(&clipboard_text, cx);
5313 }
5314 }
5315 });
5316 }
5317
5318 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5319 if self.read_only(cx) {
5320 return;
5321 }
5322
5323 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5324 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5325 self.change_selections(None, cx, |s| {
5326 s.select_anchors(selections.to_vec());
5327 });
5328 }
5329 self.request_autoscroll(Autoscroll::fit(), cx);
5330 self.unmark_text(cx);
5331 self.refresh_copilot_suggestions(true, cx);
5332 cx.emit(EditorEvent::Edited);
5333 }
5334 }
5335
5336 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5337 if self.read_only(cx) {
5338 return;
5339 }
5340
5341 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5342 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5343 {
5344 self.change_selections(None, cx, |s| {
5345 s.select_anchors(selections.to_vec());
5346 });
5347 }
5348 self.request_autoscroll(Autoscroll::fit(), cx);
5349 self.unmark_text(cx);
5350 self.refresh_copilot_suggestions(true, cx);
5351 cx.emit(EditorEvent::Edited);
5352 }
5353 }
5354
5355 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5356 self.buffer
5357 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5358 }
5359
5360 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5361 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5362 let line_mode = s.line_mode;
5363 s.move_with(|map, selection| {
5364 let cursor = if selection.is_empty() && !line_mode {
5365 movement::left(map, selection.start)
5366 } else {
5367 selection.start
5368 };
5369 selection.collapse_to(cursor, SelectionGoal::None);
5370 });
5371 })
5372 }
5373
5374 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5375 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5376 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5377 })
5378 }
5379
5380 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5382 let line_mode = s.line_mode;
5383 s.move_with(|map, selection| {
5384 let cursor = if selection.is_empty() && !line_mode {
5385 movement::right(map, selection.end)
5386 } else {
5387 selection.end
5388 };
5389 selection.collapse_to(cursor, SelectionGoal::None)
5390 });
5391 })
5392 }
5393
5394 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5396 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5397 })
5398 }
5399
5400 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5401 if self.take_rename(true, cx).is_some() {
5402 return;
5403 }
5404
5405 if matches!(self.mode, EditorMode::SingleLine) {
5406 cx.propagate();
5407 return;
5408 }
5409
5410 let text_layout_details = &self.text_layout_details(cx);
5411
5412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5413 let line_mode = s.line_mode;
5414 s.move_with(|map, selection| {
5415 if !selection.is_empty() && !line_mode {
5416 selection.goal = SelectionGoal::None;
5417 }
5418 let (cursor, goal) = movement::up(
5419 map,
5420 selection.start,
5421 selection.goal,
5422 false,
5423 &text_layout_details,
5424 );
5425 selection.collapse_to(cursor, goal);
5426 });
5427 })
5428 }
5429
5430 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5431 if self.take_rename(true, cx).is_some() {
5432 return;
5433 }
5434
5435 if matches!(self.mode, EditorMode::SingleLine) {
5436 cx.propagate();
5437 return;
5438 }
5439
5440 let text_layout_details = &self.text_layout_details(cx);
5441
5442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5443 let line_mode = s.line_mode;
5444 s.move_with(|map, selection| {
5445 if !selection.is_empty() && !line_mode {
5446 selection.goal = SelectionGoal::None;
5447 }
5448 let (cursor, goal) = movement::up_by_rows(
5449 map,
5450 selection.start,
5451 action.lines,
5452 selection.goal,
5453 false,
5454 &text_layout_details,
5455 );
5456 selection.collapse_to(cursor, goal);
5457 });
5458 })
5459 }
5460
5461 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5462 if self.take_rename(true, cx).is_some() {
5463 return;
5464 }
5465
5466 if matches!(self.mode, EditorMode::SingleLine) {
5467 cx.propagate();
5468 return;
5469 }
5470
5471 let text_layout_details = &self.text_layout_details(cx);
5472
5473 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5474 let line_mode = s.line_mode;
5475 s.move_with(|map, selection| {
5476 if !selection.is_empty() && !line_mode {
5477 selection.goal = SelectionGoal::None;
5478 }
5479 let (cursor, goal) = movement::down_by_rows(
5480 map,
5481 selection.start,
5482 action.lines,
5483 selection.goal,
5484 false,
5485 &text_layout_details,
5486 );
5487 selection.collapse_to(cursor, goal);
5488 });
5489 })
5490 }
5491
5492 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5493 let text_layout_details = &self.text_layout_details(cx);
5494 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5495 s.move_heads_with(|map, head, goal| {
5496 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5497 })
5498 })
5499 }
5500
5501 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5502 let text_layout_details = &self.text_layout_details(cx);
5503 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5504 s.move_heads_with(|map, head, goal| {
5505 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5506 })
5507 })
5508 }
5509
5510 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5511 if self.take_rename(true, cx).is_some() {
5512 return;
5513 }
5514
5515 if matches!(self.mode, EditorMode::SingleLine) {
5516 cx.propagate();
5517 return;
5518 }
5519
5520 let row_count = if let Some(row_count) = self.visible_line_count() {
5521 row_count as u32 - 1
5522 } else {
5523 return;
5524 };
5525
5526 let autoscroll = if action.center_cursor {
5527 Autoscroll::center()
5528 } else {
5529 Autoscroll::fit()
5530 };
5531
5532 let text_layout_details = &self.text_layout_details(cx);
5533
5534 self.change_selections(Some(autoscroll), cx, |s| {
5535 let line_mode = s.line_mode;
5536 s.move_with(|map, selection| {
5537 if !selection.is_empty() && !line_mode {
5538 selection.goal = SelectionGoal::None;
5539 }
5540 let (cursor, goal) = movement::up_by_rows(
5541 map,
5542 selection.end,
5543 row_count,
5544 selection.goal,
5545 false,
5546 &text_layout_details,
5547 );
5548 selection.collapse_to(cursor, goal);
5549 });
5550 });
5551 }
5552
5553 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5554 let text_layout_details = &self.text_layout_details(cx);
5555 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5556 s.move_heads_with(|map, head, goal| {
5557 movement::up(map, head, goal, false, &text_layout_details)
5558 })
5559 })
5560 }
5561
5562 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5563 self.take_rename(true, cx);
5564
5565 if self.mode == EditorMode::SingleLine {
5566 cx.propagate();
5567 return;
5568 }
5569
5570 let text_layout_details = &self.text_layout_details(cx);
5571 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5572 let line_mode = s.line_mode;
5573 s.move_with(|map, selection| {
5574 if !selection.is_empty() && !line_mode {
5575 selection.goal = SelectionGoal::None;
5576 }
5577 let (cursor, goal) = movement::down(
5578 map,
5579 selection.end,
5580 selection.goal,
5581 false,
5582 &text_layout_details,
5583 );
5584 selection.collapse_to(cursor, goal);
5585 });
5586 });
5587 }
5588
5589 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5590 if self.take_rename(true, cx).is_some() {
5591 return;
5592 }
5593
5594 if self
5595 .context_menu
5596 .write()
5597 .as_mut()
5598 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5599 .unwrap_or(false)
5600 {
5601 return;
5602 }
5603
5604 if matches!(self.mode, EditorMode::SingleLine) {
5605 cx.propagate();
5606 return;
5607 }
5608
5609 let row_count = if let Some(row_count) = self.visible_line_count() {
5610 row_count as u32 - 1
5611 } else {
5612 return;
5613 };
5614
5615 let autoscroll = if action.center_cursor {
5616 Autoscroll::center()
5617 } else {
5618 Autoscroll::fit()
5619 };
5620
5621 let text_layout_details = &self.text_layout_details(cx);
5622 self.change_selections(Some(autoscroll), cx, |s| {
5623 let line_mode = s.line_mode;
5624 s.move_with(|map, selection| {
5625 if !selection.is_empty() && !line_mode {
5626 selection.goal = SelectionGoal::None;
5627 }
5628 let (cursor, goal) = movement::down_by_rows(
5629 map,
5630 selection.end,
5631 row_count,
5632 selection.goal,
5633 false,
5634 &text_layout_details,
5635 );
5636 selection.collapse_to(cursor, goal);
5637 });
5638 });
5639 }
5640
5641 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5642 let text_layout_details = &self.text_layout_details(cx);
5643 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5644 s.move_heads_with(|map, head, goal| {
5645 movement::down(map, head, goal, false, &text_layout_details)
5646 })
5647 });
5648 }
5649
5650 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5651 if let Some(context_menu) = self.context_menu.write().as_mut() {
5652 context_menu.select_first(self.project.as_ref(), cx);
5653 }
5654 }
5655
5656 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5657 if let Some(context_menu) = self.context_menu.write().as_mut() {
5658 context_menu.select_prev(self.project.as_ref(), cx);
5659 }
5660 }
5661
5662 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5663 if let Some(context_menu) = self.context_menu.write().as_mut() {
5664 context_menu.select_next(self.project.as_ref(), cx);
5665 }
5666 }
5667
5668 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5669 if let Some(context_menu) = self.context_menu.write().as_mut() {
5670 context_menu.select_last(self.project.as_ref(), cx);
5671 }
5672 }
5673
5674 pub fn move_to_previous_word_start(
5675 &mut self,
5676 _: &MoveToPreviousWordStart,
5677 cx: &mut ViewContext<Self>,
5678 ) {
5679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5680 s.move_cursors_with(|map, head, _| {
5681 (
5682 movement::previous_word_start(map, head),
5683 SelectionGoal::None,
5684 )
5685 });
5686 })
5687 }
5688
5689 pub fn move_to_previous_subword_start(
5690 &mut self,
5691 _: &MoveToPreviousSubwordStart,
5692 cx: &mut ViewContext<Self>,
5693 ) {
5694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5695 s.move_cursors_with(|map, head, _| {
5696 (
5697 movement::previous_subword_start(map, head),
5698 SelectionGoal::None,
5699 )
5700 });
5701 })
5702 }
5703
5704 pub fn select_to_previous_word_start(
5705 &mut self,
5706 _: &SelectToPreviousWordStart,
5707 cx: &mut ViewContext<Self>,
5708 ) {
5709 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5710 s.move_heads_with(|map, head, _| {
5711 (
5712 movement::previous_word_start(map, head),
5713 SelectionGoal::None,
5714 )
5715 });
5716 })
5717 }
5718
5719 pub fn select_to_previous_subword_start(
5720 &mut self,
5721 _: &SelectToPreviousSubwordStart,
5722 cx: &mut ViewContext<Self>,
5723 ) {
5724 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5725 s.move_heads_with(|map, head, _| {
5726 (
5727 movement::previous_subword_start(map, head),
5728 SelectionGoal::None,
5729 )
5730 });
5731 })
5732 }
5733
5734 pub fn delete_to_previous_word_start(
5735 &mut self,
5736 _: &DeleteToPreviousWordStart,
5737 cx: &mut ViewContext<Self>,
5738 ) {
5739 self.transact(cx, |this, cx| {
5740 this.select_autoclose_pair(cx);
5741 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5742 let line_mode = s.line_mode;
5743 s.move_with(|map, selection| {
5744 if selection.is_empty() && !line_mode {
5745 let cursor = movement::previous_word_start(map, selection.head());
5746 selection.set_head(cursor, SelectionGoal::None);
5747 }
5748 });
5749 });
5750 this.insert("", cx);
5751 });
5752 }
5753
5754 pub fn delete_to_previous_subword_start(
5755 &mut self,
5756 _: &DeleteToPreviousSubwordStart,
5757 cx: &mut ViewContext<Self>,
5758 ) {
5759 self.transact(cx, |this, cx| {
5760 this.select_autoclose_pair(cx);
5761 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5762 let line_mode = s.line_mode;
5763 s.move_with(|map, selection| {
5764 if selection.is_empty() && !line_mode {
5765 let cursor = movement::previous_subword_start(map, selection.head());
5766 selection.set_head(cursor, SelectionGoal::None);
5767 }
5768 });
5769 });
5770 this.insert("", cx);
5771 });
5772 }
5773
5774 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5776 s.move_cursors_with(|map, head, _| {
5777 (movement::next_word_end(map, head), SelectionGoal::None)
5778 });
5779 })
5780 }
5781
5782 pub fn move_to_next_subword_end(
5783 &mut self,
5784 _: &MoveToNextSubwordEnd,
5785 cx: &mut ViewContext<Self>,
5786 ) {
5787 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5788 s.move_cursors_with(|map, head, _| {
5789 (movement::next_subword_end(map, head), SelectionGoal::None)
5790 });
5791 })
5792 }
5793
5794 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5795 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5796 s.move_heads_with(|map, head, _| {
5797 (movement::next_word_end(map, head), SelectionGoal::None)
5798 });
5799 })
5800 }
5801
5802 pub fn select_to_next_subword_end(
5803 &mut self,
5804 _: &SelectToNextSubwordEnd,
5805 cx: &mut ViewContext<Self>,
5806 ) {
5807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5808 s.move_heads_with(|map, head, _| {
5809 (movement::next_subword_end(map, head), SelectionGoal::None)
5810 });
5811 })
5812 }
5813
5814 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5815 self.transact(cx, |this, cx| {
5816 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5817 let line_mode = s.line_mode;
5818 s.move_with(|map, selection| {
5819 if selection.is_empty() && !line_mode {
5820 let cursor = movement::next_word_end(map, selection.head());
5821 selection.set_head(cursor, SelectionGoal::None);
5822 }
5823 });
5824 });
5825 this.insert("", cx);
5826 });
5827 }
5828
5829 pub fn delete_to_next_subword_end(
5830 &mut self,
5831 _: &DeleteToNextSubwordEnd,
5832 cx: &mut ViewContext<Self>,
5833 ) {
5834 self.transact(cx, |this, cx| {
5835 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5836 s.move_with(|map, selection| {
5837 if selection.is_empty() {
5838 let cursor = movement::next_subword_end(map, selection.head());
5839 selection.set_head(cursor, SelectionGoal::None);
5840 }
5841 });
5842 });
5843 this.insert("", cx);
5844 });
5845 }
5846
5847 pub fn move_to_beginning_of_line(
5848 &mut self,
5849 _: &MoveToBeginningOfLine,
5850 cx: &mut ViewContext<Self>,
5851 ) {
5852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5853 s.move_cursors_with(|map, head, _| {
5854 (
5855 movement::indented_line_beginning(map, head, true),
5856 SelectionGoal::None,
5857 )
5858 });
5859 })
5860 }
5861
5862 pub fn select_to_beginning_of_line(
5863 &mut self,
5864 action: &SelectToBeginningOfLine,
5865 cx: &mut ViewContext<Self>,
5866 ) {
5867 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5868 s.move_heads_with(|map, head, _| {
5869 (
5870 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5871 SelectionGoal::None,
5872 )
5873 });
5874 });
5875 }
5876
5877 pub fn delete_to_beginning_of_line(
5878 &mut self,
5879 _: &DeleteToBeginningOfLine,
5880 cx: &mut ViewContext<Self>,
5881 ) {
5882 self.transact(cx, |this, cx| {
5883 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5884 s.move_with(|_, selection| {
5885 selection.reversed = true;
5886 });
5887 });
5888
5889 this.select_to_beginning_of_line(
5890 &SelectToBeginningOfLine {
5891 stop_at_soft_wraps: false,
5892 },
5893 cx,
5894 );
5895 this.backspace(&Backspace, cx);
5896 });
5897 }
5898
5899 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5900 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5901 s.move_cursors_with(|map, head, _| {
5902 (movement::line_end(map, head, true), SelectionGoal::None)
5903 });
5904 })
5905 }
5906
5907 pub fn select_to_end_of_line(
5908 &mut self,
5909 action: &SelectToEndOfLine,
5910 cx: &mut ViewContext<Self>,
5911 ) {
5912 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5913 s.move_heads_with(|map, head, _| {
5914 (
5915 movement::line_end(map, head, action.stop_at_soft_wraps),
5916 SelectionGoal::None,
5917 )
5918 });
5919 })
5920 }
5921
5922 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5923 self.transact(cx, |this, cx| {
5924 this.select_to_end_of_line(
5925 &SelectToEndOfLine {
5926 stop_at_soft_wraps: false,
5927 },
5928 cx,
5929 );
5930 this.delete(&Delete, cx);
5931 });
5932 }
5933
5934 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5935 self.transact(cx, |this, cx| {
5936 this.select_to_end_of_line(
5937 &SelectToEndOfLine {
5938 stop_at_soft_wraps: false,
5939 },
5940 cx,
5941 );
5942 this.cut(&Cut, cx);
5943 });
5944 }
5945
5946 pub fn move_to_start_of_paragraph(
5947 &mut self,
5948 _: &MoveToStartOfParagraph,
5949 cx: &mut ViewContext<Self>,
5950 ) {
5951 if matches!(self.mode, EditorMode::SingleLine) {
5952 cx.propagate();
5953 return;
5954 }
5955
5956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5957 s.move_with(|map, selection| {
5958 selection.collapse_to(
5959 movement::start_of_paragraph(map, selection.head(), 1),
5960 SelectionGoal::None,
5961 )
5962 });
5963 })
5964 }
5965
5966 pub fn move_to_end_of_paragraph(
5967 &mut self,
5968 _: &MoveToEndOfParagraph,
5969 cx: &mut ViewContext<Self>,
5970 ) {
5971 if matches!(self.mode, EditorMode::SingleLine) {
5972 cx.propagate();
5973 return;
5974 }
5975
5976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5977 s.move_with(|map, selection| {
5978 selection.collapse_to(
5979 movement::end_of_paragraph(map, selection.head(), 1),
5980 SelectionGoal::None,
5981 )
5982 });
5983 })
5984 }
5985
5986 pub fn select_to_start_of_paragraph(
5987 &mut self,
5988 _: &SelectToStartOfParagraph,
5989 cx: &mut ViewContext<Self>,
5990 ) {
5991 if matches!(self.mode, EditorMode::SingleLine) {
5992 cx.propagate();
5993 return;
5994 }
5995
5996 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5997 s.move_heads_with(|map, head, _| {
5998 (
5999 movement::start_of_paragraph(map, head, 1),
6000 SelectionGoal::None,
6001 )
6002 });
6003 })
6004 }
6005
6006 pub fn select_to_end_of_paragraph(
6007 &mut self,
6008 _: &SelectToEndOfParagraph,
6009 cx: &mut ViewContext<Self>,
6010 ) {
6011 if matches!(self.mode, EditorMode::SingleLine) {
6012 cx.propagate();
6013 return;
6014 }
6015
6016 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6017 s.move_heads_with(|map, head, _| {
6018 (
6019 movement::end_of_paragraph(map, head, 1),
6020 SelectionGoal::None,
6021 )
6022 });
6023 })
6024 }
6025
6026 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6027 if matches!(self.mode, EditorMode::SingleLine) {
6028 cx.propagate();
6029 return;
6030 }
6031
6032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6033 s.select_ranges(vec![0..0]);
6034 });
6035 }
6036
6037 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6038 let mut selection = self.selections.last::<Point>(cx);
6039 selection.set_head(Point::zero(), SelectionGoal::None);
6040
6041 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6042 s.select(vec![selection]);
6043 });
6044 }
6045
6046 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6047 if matches!(self.mode, EditorMode::SingleLine) {
6048 cx.propagate();
6049 return;
6050 }
6051
6052 let cursor = self.buffer.read(cx).read(cx).len();
6053 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6054 s.select_ranges(vec![cursor..cursor])
6055 });
6056 }
6057
6058 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6059 self.nav_history = nav_history;
6060 }
6061
6062 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6063 self.nav_history.as_ref()
6064 }
6065
6066 fn push_to_nav_history(
6067 &mut self,
6068 cursor_anchor: Anchor,
6069 new_position: Option<Point>,
6070 cx: &mut ViewContext<Self>,
6071 ) {
6072 if let Some(nav_history) = self.nav_history.as_mut() {
6073 let buffer = self.buffer.read(cx).read(cx);
6074 let cursor_position = cursor_anchor.to_point(&buffer);
6075 let scroll_state = self.scroll_manager.anchor();
6076 let scroll_top_row = scroll_state.top_row(&buffer);
6077 drop(buffer);
6078
6079 if let Some(new_position) = new_position {
6080 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6081 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6082 return;
6083 }
6084 }
6085
6086 nav_history.push(
6087 Some(NavigationData {
6088 cursor_anchor,
6089 cursor_position,
6090 scroll_anchor: scroll_state,
6091 scroll_top_row,
6092 }),
6093 cx,
6094 );
6095 }
6096 }
6097
6098 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6099 let buffer = self.buffer.read(cx).snapshot(cx);
6100 let mut selection = self.selections.first::<usize>(cx);
6101 selection.set_head(buffer.len(), SelectionGoal::None);
6102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6103 s.select(vec![selection]);
6104 });
6105 }
6106
6107 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6108 let end = self.buffer.read(cx).read(cx).len();
6109 self.change_selections(None, cx, |s| {
6110 s.select_ranges(vec![0..end]);
6111 });
6112 }
6113
6114 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6115 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6116 let mut selections = self.selections.all::<Point>(cx);
6117 let max_point = display_map.buffer_snapshot.max_point();
6118 for selection in &mut selections {
6119 let rows = selection.spanned_rows(true, &display_map);
6120 selection.start = Point::new(rows.start, 0);
6121 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6122 selection.reversed = false;
6123 }
6124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6125 s.select(selections);
6126 });
6127 }
6128
6129 pub fn split_selection_into_lines(
6130 &mut self,
6131 _: &SplitSelectionIntoLines,
6132 cx: &mut ViewContext<Self>,
6133 ) {
6134 let mut to_unfold = Vec::new();
6135 let mut new_selection_ranges = Vec::new();
6136 {
6137 let selections = self.selections.all::<Point>(cx);
6138 let buffer = self.buffer.read(cx).read(cx);
6139 for selection in selections {
6140 for row in selection.start.row..selection.end.row {
6141 let cursor = Point::new(row, buffer.line_len(row));
6142 new_selection_ranges.push(cursor..cursor);
6143 }
6144 new_selection_ranges.push(selection.end..selection.end);
6145 to_unfold.push(selection.start..selection.end);
6146 }
6147 }
6148 self.unfold_ranges(to_unfold, true, true, cx);
6149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6150 s.select_ranges(new_selection_ranges);
6151 });
6152 }
6153
6154 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6155 self.add_selection(true, cx);
6156 }
6157
6158 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6159 self.add_selection(false, cx);
6160 }
6161
6162 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6163 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6164 let mut selections = self.selections.all::<Point>(cx);
6165 let text_layout_details = self.text_layout_details(cx);
6166 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6167 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6168 let range = oldest_selection.display_range(&display_map).sorted();
6169
6170 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6171 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6172 let positions = start_x.min(end_x)..start_x.max(end_x);
6173
6174 selections.clear();
6175 let mut stack = Vec::new();
6176 for row in range.start.row()..=range.end.row() {
6177 if let Some(selection) = self.selections.build_columnar_selection(
6178 &display_map,
6179 row,
6180 &positions,
6181 oldest_selection.reversed,
6182 &text_layout_details,
6183 ) {
6184 stack.push(selection.id);
6185 selections.push(selection);
6186 }
6187 }
6188
6189 if above {
6190 stack.reverse();
6191 }
6192
6193 AddSelectionsState { above, stack }
6194 });
6195
6196 let last_added_selection = *state.stack.last().unwrap();
6197 let mut new_selections = Vec::new();
6198 if above == state.above {
6199 let end_row = if above {
6200 0
6201 } else {
6202 display_map.max_point().row()
6203 };
6204
6205 'outer: for selection in selections {
6206 if selection.id == last_added_selection {
6207 let range = selection.display_range(&display_map).sorted();
6208 debug_assert_eq!(range.start.row(), range.end.row());
6209 let mut row = range.start.row();
6210 let positions =
6211 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6212 px(start)..px(end)
6213 } else {
6214 let start_x =
6215 display_map.x_for_display_point(range.start, &text_layout_details);
6216 let end_x =
6217 display_map.x_for_display_point(range.end, &text_layout_details);
6218 start_x.min(end_x)..start_x.max(end_x)
6219 };
6220
6221 while row != end_row {
6222 if above {
6223 row -= 1;
6224 } else {
6225 row += 1;
6226 }
6227
6228 if let Some(new_selection) = self.selections.build_columnar_selection(
6229 &display_map,
6230 row,
6231 &positions,
6232 selection.reversed,
6233 &text_layout_details,
6234 ) {
6235 state.stack.push(new_selection.id);
6236 if above {
6237 new_selections.push(new_selection);
6238 new_selections.push(selection);
6239 } else {
6240 new_selections.push(selection);
6241 new_selections.push(new_selection);
6242 }
6243
6244 continue 'outer;
6245 }
6246 }
6247 }
6248
6249 new_selections.push(selection);
6250 }
6251 } else {
6252 new_selections = selections;
6253 new_selections.retain(|s| s.id != last_added_selection);
6254 state.stack.pop();
6255 }
6256
6257 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6258 s.select(new_selections);
6259 });
6260 if state.stack.len() > 1 {
6261 self.add_selections_state = Some(state);
6262 }
6263 }
6264
6265 pub fn select_next_match_internal(
6266 &mut self,
6267 display_map: &DisplaySnapshot,
6268 replace_newest: bool,
6269 autoscroll: Option<Autoscroll>,
6270 cx: &mut ViewContext<Self>,
6271 ) -> Result<()> {
6272 fn select_next_match_ranges(
6273 this: &mut Editor,
6274 range: Range<usize>,
6275 replace_newest: bool,
6276 auto_scroll: Option<Autoscroll>,
6277 cx: &mut ViewContext<Editor>,
6278 ) {
6279 this.unfold_ranges([range.clone()], false, true, cx);
6280 this.change_selections(auto_scroll, cx, |s| {
6281 if replace_newest {
6282 s.delete(s.newest_anchor().id);
6283 }
6284 s.insert_range(range.clone());
6285 });
6286 }
6287
6288 let buffer = &display_map.buffer_snapshot;
6289 let mut selections = self.selections.all::<usize>(cx);
6290 if let Some(mut select_next_state) = self.select_next_state.take() {
6291 let query = &select_next_state.query;
6292 if !select_next_state.done {
6293 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6294 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6295 let mut next_selected_range = None;
6296
6297 let bytes_after_last_selection =
6298 buffer.bytes_in_range(last_selection.end..buffer.len());
6299 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6300 let query_matches = query
6301 .stream_find_iter(bytes_after_last_selection)
6302 .map(|result| (last_selection.end, result))
6303 .chain(
6304 query
6305 .stream_find_iter(bytes_before_first_selection)
6306 .map(|result| (0, result)),
6307 );
6308
6309 for (start_offset, query_match) in query_matches {
6310 let query_match = query_match.unwrap(); // can only fail due to I/O
6311 let offset_range =
6312 start_offset + query_match.start()..start_offset + query_match.end();
6313 let display_range = offset_range.start.to_display_point(&display_map)
6314 ..offset_range.end.to_display_point(&display_map);
6315
6316 if !select_next_state.wordwise
6317 || (!movement::is_inside_word(&display_map, display_range.start)
6318 && !movement::is_inside_word(&display_map, display_range.end))
6319 {
6320 // TODO: This is n^2, because we might check all the selections
6321 if selections
6322 .iter()
6323 .find(|selection| selection.range().overlaps(&offset_range))
6324 .is_none()
6325 {
6326 next_selected_range = Some(offset_range);
6327 break;
6328 }
6329 }
6330 }
6331
6332 if let Some(next_selected_range) = next_selected_range {
6333 select_next_match_ranges(
6334 self,
6335 next_selected_range,
6336 replace_newest,
6337 autoscroll,
6338 cx,
6339 );
6340 } else {
6341 select_next_state.done = true;
6342 }
6343 }
6344
6345 self.select_next_state = Some(select_next_state);
6346 } else {
6347 let mut only_carets = true;
6348 let mut same_text_selected = true;
6349 let mut selected_text = None;
6350
6351 let mut selections_iter = selections.iter().peekable();
6352 while let Some(selection) = selections_iter.next() {
6353 if selection.start != selection.end {
6354 only_carets = false;
6355 }
6356
6357 if same_text_selected {
6358 if selected_text.is_none() {
6359 selected_text =
6360 Some(buffer.text_for_range(selection.range()).collect::<String>());
6361 }
6362
6363 if let Some(next_selection) = selections_iter.peek() {
6364 if next_selection.range().len() == selection.range().len() {
6365 let next_selected_text = buffer
6366 .text_for_range(next_selection.range())
6367 .collect::<String>();
6368 if Some(next_selected_text) != selected_text {
6369 same_text_selected = false;
6370 selected_text = None;
6371 }
6372 } else {
6373 same_text_selected = false;
6374 selected_text = None;
6375 }
6376 }
6377 }
6378 }
6379
6380 if only_carets {
6381 for selection in &mut selections {
6382 let word_range = movement::surrounding_word(
6383 &display_map,
6384 selection.start.to_display_point(&display_map),
6385 );
6386 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6387 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6388 selection.goal = SelectionGoal::None;
6389 selection.reversed = false;
6390 select_next_match_ranges(
6391 self,
6392 selection.start..selection.end,
6393 replace_newest,
6394 autoscroll,
6395 cx,
6396 );
6397 }
6398
6399 if selections.len() == 1 {
6400 let selection = selections
6401 .last()
6402 .expect("ensured that there's only one selection");
6403 let query = buffer
6404 .text_for_range(selection.start..selection.end)
6405 .collect::<String>();
6406 let is_empty = query.is_empty();
6407 let select_state = SelectNextState {
6408 query: AhoCorasick::new(&[query])?,
6409 wordwise: true,
6410 done: is_empty,
6411 };
6412 self.select_next_state = Some(select_state);
6413 } else {
6414 self.select_next_state = None;
6415 }
6416 } else if let Some(selected_text) = selected_text {
6417 self.select_next_state = Some(SelectNextState {
6418 query: AhoCorasick::new(&[selected_text])?,
6419 wordwise: false,
6420 done: false,
6421 });
6422 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6423 }
6424 }
6425 Ok(())
6426 }
6427
6428 pub fn select_all_matches(
6429 &mut self,
6430 _action: &SelectAllMatches,
6431 cx: &mut ViewContext<Self>,
6432 ) -> Result<()> {
6433 self.push_to_selection_history();
6434 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6435
6436 self.select_next_match_internal(&display_map, false, None, cx)?;
6437 let Some(select_next_state) = self.select_next_state.as_mut() else {
6438 return Ok(());
6439 };
6440 if select_next_state.done {
6441 return Ok(());
6442 }
6443
6444 let mut new_selections = self.selections.all::<usize>(cx);
6445
6446 let buffer = &display_map.buffer_snapshot;
6447 let query_matches = select_next_state
6448 .query
6449 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6450
6451 for query_match in query_matches {
6452 let query_match = query_match.unwrap(); // can only fail due to I/O
6453 let offset_range = query_match.start()..query_match.end();
6454 let display_range = offset_range.start.to_display_point(&display_map)
6455 ..offset_range.end.to_display_point(&display_map);
6456
6457 if !select_next_state.wordwise
6458 || (!movement::is_inside_word(&display_map, display_range.start)
6459 && !movement::is_inside_word(&display_map, display_range.end))
6460 {
6461 self.selections.change_with(cx, |selections| {
6462 new_selections.push(Selection {
6463 id: selections.new_selection_id(),
6464 start: offset_range.start,
6465 end: offset_range.end,
6466 reversed: false,
6467 goal: SelectionGoal::None,
6468 });
6469 });
6470 }
6471 }
6472
6473 new_selections.sort_by_key(|selection| selection.start);
6474 let mut ix = 0;
6475 while ix + 1 < new_selections.len() {
6476 let current_selection = &new_selections[ix];
6477 let next_selection = &new_selections[ix + 1];
6478 if current_selection.range().overlaps(&next_selection.range()) {
6479 if current_selection.id < next_selection.id {
6480 new_selections.remove(ix + 1);
6481 } else {
6482 new_selections.remove(ix);
6483 }
6484 } else {
6485 ix += 1;
6486 }
6487 }
6488
6489 select_next_state.done = true;
6490 self.unfold_ranges(
6491 new_selections.iter().map(|selection| selection.range()),
6492 false,
6493 false,
6494 cx,
6495 );
6496 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6497 selections.select(new_selections)
6498 });
6499
6500 Ok(())
6501 }
6502
6503 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6504 self.push_to_selection_history();
6505 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6506 self.select_next_match_internal(
6507 &display_map,
6508 action.replace_newest,
6509 Some(Autoscroll::newest()),
6510 cx,
6511 )?;
6512 Ok(())
6513 }
6514
6515 pub fn select_previous(
6516 &mut self,
6517 action: &SelectPrevious,
6518 cx: &mut ViewContext<Self>,
6519 ) -> Result<()> {
6520 self.push_to_selection_history();
6521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6522 let buffer = &display_map.buffer_snapshot;
6523 let mut selections = self.selections.all::<usize>(cx);
6524 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6525 let query = &select_prev_state.query;
6526 if !select_prev_state.done {
6527 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6528 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6529 let mut next_selected_range = None;
6530 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6531 let bytes_before_last_selection =
6532 buffer.reversed_bytes_in_range(0..last_selection.start);
6533 let bytes_after_first_selection =
6534 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6535 let query_matches = query
6536 .stream_find_iter(bytes_before_last_selection)
6537 .map(|result| (last_selection.start, result))
6538 .chain(
6539 query
6540 .stream_find_iter(bytes_after_first_selection)
6541 .map(|result| (buffer.len(), result)),
6542 );
6543 for (end_offset, query_match) in query_matches {
6544 let query_match = query_match.unwrap(); // can only fail due to I/O
6545 let offset_range =
6546 end_offset - query_match.end()..end_offset - query_match.start();
6547 let display_range = offset_range.start.to_display_point(&display_map)
6548 ..offset_range.end.to_display_point(&display_map);
6549
6550 if !select_prev_state.wordwise
6551 || (!movement::is_inside_word(&display_map, display_range.start)
6552 && !movement::is_inside_word(&display_map, display_range.end))
6553 {
6554 next_selected_range = Some(offset_range);
6555 break;
6556 }
6557 }
6558
6559 if let Some(next_selected_range) = next_selected_range {
6560 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6561 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6562 if action.replace_newest {
6563 s.delete(s.newest_anchor().id);
6564 }
6565 s.insert_range(next_selected_range);
6566 });
6567 } else {
6568 select_prev_state.done = true;
6569 }
6570 }
6571
6572 self.select_prev_state = Some(select_prev_state);
6573 } else {
6574 let mut only_carets = true;
6575 let mut same_text_selected = true;
6576 let mut selected_text = None;
6577
6578 let mut selections_iter = selections.iter().peekable();
6579 while let Some(selection) = selections_iter.next() {
6580 if selection.start != selection.end {
6581 only_carets = false;
6582 }
6583
6584 if same_text_selected {
6585 if selected_text.is_none() {
6586 selected_text =
6587 Some(buffer.text_for_range(selection.range()).collect::<String>());
6588 }
6589
6590 if let Some(next_selection) = selections_iter.peek() {
6591 if next_selection.range().len() == selection.range().len() {
6592 let next_selected_text = buffer
6593 .text_for_range(next_selection.range())
6594 .collect::<String>();
6595 if Some(next_selected_text) != selected_text {
6596 same_text_selected = false;
6597 selected_text = None;
6598 }
6599 } else {
6600 same_text_selected = false;
6601 selected_text = None;
6602 }
6603 }
6604 }
6605 }
6606
6607 if only_carets {
6608 for selection in &mut selections {
6609 let word_range = movement::surrounding_word(
6610 &display_map,
6611 selection.start.to_display_point(&display_map),
6612 );
6613 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6614 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6615 selection.goal = SelectionGoal::None;
6616 selection.reversed = false;
6617 }
6618 if selections.len() == 1 {
6619 let selection = selections
6620 .last()
6621 .expect("ensured that there's only one selection");
6622 let query = buffer
6623 .text_for_range(selection.start..selection.end)
6624 .collect::<String>();
6625 let is_empty = query.is_empty();
6626 let select_state = SelectNextState {
6627 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6628 wordwise: true,
6629 done: is_empty,
6630 };
6631 self.select_prev_state = Some(select_state);
6632 } else {
6633 self.select_prev_state = None;
6634 }
6635
6636 self.unfold_ranges(
6637 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6638 false,
6639 true,
6640 cx,
6641 );
6642 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6643 s.select(selections);
6644 });
6645 } else if let Some(selected_text) = selected_text {
6646 self.select_prev_state = Some(SelectNextState {
6647 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6648 wordwise: false,
6649 done: false,
6650 });
6651 self.select_previous(action, cx)?;
6652 }
6653 }
6654 Ok(())
6655 }
6656
6657 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6658 let text_layout_details = &self.text_layout_details(cx);
6659 self.transact(cx, |this, cx| {
6660 let mut selections = this.selections.all::<Point>(cx);
6661 let mut edits = Vec::new();
6662 let mut selection_edit_ranges = Vec::new();
6663 let mut last_toggled_row = None;
6664 let snapshot = this.buffer.read(cx).read(cx);
6665 let empty_str: Arc<str> = "".into();
6666 let mut suffixes_inserted = Vec::new();
6667
6668 fn comment_prefix_range(
6669 snapshot: &MultiBufferSnapshot,
6670 row: u32,
6671 comment_prefix: &str,
6672 comment_prefix_whitespace: &str,
6673 ) -> Range<Point> {
6674 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6675
6676 let mut line_bytes = snapshot
6677 .bytes_in_range(start..snapshot.max_point())
6678 .flatten()
6679 .copied();
6680
6681 // If this line currently begins with the line comment prefix, then record
6682 // the range containing the prefix.
6683 if line_bytes
6684 .by_ref()
6685 .take(comment_prefix.len())
6686 .eq(comment_prefix.bytes())
6687 {
6688 // Include any whitespace that matches the comment prefix.
6689 let matching_whitespace_len = line_bytes
6690 .zip(comment_prefix_whitespace.bytes())
6691 .take_while(|(a, b)| a == b)
6692 .count() as u32;
6693 let end = Point::new(
6694 start.row,
6695 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6696 );
6697 start..end
6698 } else {
6699 start..start
6700 }
6701 }
6702
6703 fn comment_suffix_range(
6704 snapshot: &MultiBufferSnapshot,
6705 row: u32,
6706 comment_suffix: &str,
6707 comment_suffix_has_leading_space: bool,
6708 ) -> Range<Point> {
6709 let end = Point::new(row, snapshot.line_len(row));
6710 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6711
6712 let mut line_end_bytes = snapshot
6713 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6714 .flatten()
6715 .copied();
6716
6717 let leading_space_len = if suffix_start_column > 0
6718 && line_end_bytes.next() == Some(b' ')
6719 && comment_suffix_has_leading_space
6720 {
6721 1
6722 } else {
6723 0
6724 };
6725
6726 // If this line currently begins with the line comment prefix, then record
6727 // the range containing the prefix.
6728 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6729 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6730 start..end
6731 } else {
6732 end..end
6733 }
6734 }
6735
6736 // TODO: Handle selections that cross excerpts
6737 for selection in &mut selections {
6738 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6739 let language = if let Some(language) =
6740 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6741 {
6742 language
6743 } else {
6744 continue;
6745 };
6746
6747 selection_edit_ranges.clear();
6748
6749 // If multiple selections contain a given row, avoid processing that
6750 // row more than once.
6751 let mut start_row = selection.start.row;
6752 if last_toggled_row == Some(start_row) {
6753 start_row += 1;
6754 }
6755 let end_row =
6756 if selection.end.row > selection.start.row && selection.end.column == 0 {
6757 selection.end.row - 1
6758 } else {
6759 selection.end.row
6760 };
6761 last_toggled_row = Some(end_row);
6762
6763 if start_row > end_row {
6764 continue;
6765 }
6766
6767 // If the language has line comments, toggle those.
6768 if let Some(full_comment_prefix) = language
6769 .line_comment_prefixes()
6770 .and_then(|prefixes| prefixes.first())
6771 {
6772 // Split the comment prefix's trailing whitespace into a separate string,
6773 // as that portion won't be used for detecting if a line is a comment.
6774 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6775 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6776 let mut all_selection_lines_are_comments = true;
6777
6778 for row in start_row..=end_row {
6779 if start_row < end_row && snapshot.is_line_blank(row) {
6780 continue;
6781 }
6782
6783 let prefix_range = comment_prefix_range(
6784 snapshot.deref(),
6785 row,
6786 comment_prefix,
6787 comment_prefix_whitespace,
6788 );
6789 if prefix_range.is_empty() {
6790 all_selection_lines_are_comments = false;
6791 }
6792 selection_edit_ranges.push(prefix_range);
6793 }
6794
6795 if all_selection_lines_are_comments {
6796 edits.extend(
6797 selection_edit_ranges
6798 .iter()
6799 .cloned()
6800 .map(|range| (range, empty_str.clone())),
6801 );
6802 } else {
6803 let min_column = selection_edit_ranges
6804 .iter()
6805 .map(|r| r.start.column)
6806 .min()
6807 .unwrap_or(0);
6808 edits.extend(selection_edit_ranges.iter().map(|range| {
6809 let position = Point::new(range.start.row, min_column);
6810 (position..position, full_comment_prefix.clone())
6811 }));
6812 }
6813 } else if let Some((full_comment_prefix, comment_suffix)) =
6814 language.block_comment_delimiters()
6815 {
6816 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6817 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6818 let prefix_range = comment_prefix_range(
6819 snapshot.deref(),
6820 start_row,
6821 comment_prefix,
6822 comment_prefix_whitespace,
6823 );
6824 let suffix_range = comment_suffix_range(
6825 snapshot.deref(),
6826 end_row,
6827 comment_suffix.trim_start_matches(' '),
6828 comment_suffix.starts_with(' '),
6829 );
6830
6831 if prefix_range.is_empty() || suffix_range.is_empty() {
6832 edits.push((
6833 prefix_range.start..prefix_range.start,
6834 full_comment_prefix.clone(),
6835 ));
6836 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6837 suffixes_inserted.push((end_row, comment_suffix.len()));
6838 } else {
6839 edits.push((prefix_range, empty_str.clone()));
6840 edits.push((suffix_range, empty_str.clone()));
6841 }
6842 } else {
6843 continue;
6844 }
6845 }
6846
6847 drop(snapshot);
6848 this.buffer.update(cx, |buffer, cx| {
6849 buffer.edit(edits, None, cx);
6850 });
6851
6852 // Adjust selections so that they end before any comment suffixes that
6853 // were inserted.
6854 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6855 let mut selections = this.selections.all::<Point>(cx);
6856 let snapshot = this.buffer.read(cx).read(cx);
6857 for selection in &mut selections {
6858 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6859 match row.cmp(&selection.end.row) {
6860 Ordering::Less => {
6861 suffixes_inserted.next();
6862 continue;
6863 }
6864 Ordering::Greater => break,
6865 Ordering::Equal => {
6866 if selection.end.column == snapshot.line_len(row) {
6867 if selection.is_empty() {
6868 selection.start.column -= suffix_len as u32;
6869 }
6870 selection.end.column -= suffix_len as u32;
6871 }
6872 break;
6873 }
6874 }
6875 }
6876 }
6877
6878 drop(snapshot);
6879 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6880
6881 let selections = this.selections.all::<Point>(cx);
6882 let selections_on_single_row = selections.windows(2).all(|selections| {
6883 selections[0].start.row == selections[1].start.row
6884 && selections[0].end.row == selections[1].end.row
6885 && selections[0].start.row == selections[0].end.row
6886 });
6887 let selections_selecting = selections
6888 .iter()
6889 .any(|selection| selection.start != selection.end);
6890 let advance_downwards = action.advance_downwards
6891 && selections_on_single_row
6892 && !selections_selecting
6893 && this.mode != EditorMode::SingleLine;
6894
6895 if advance_downwards {
6896 let snapshot = this.buffer.read(cx).snapshot(cx);
6897
6898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6899 s.move_cursors_with(|display_snapshot, display_point, _| {
6900 let mut point = display_point.to_point(display_snapshot);
6901 point.row += 1;
6902 point = snapshot.clip_point(point, Bias::Left);
6903 let display_point = point.to_display_point(display_snapshot);
6904 let goal = SelectionGoal::HorizontalPosition(
6905 display_snapshot
6906 .x_for_display_point(display_point, &text_layout_details)
6907 .into(),
6908 );
6909 (display_point, goal)
6910 })
6911 });
6912 }
6913 });
6914 }
6915
6916 pub fn select_larger_syntax_node(
6917 &mut self,
6918 _: &SelectLargerSyntaxNode,
6919 cx: &mut ViewContext<Self>,
6920 ) {
6921 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6922 let buffer = self.buffer.read(cx).snapshot(cx);
6923 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6924
6925 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6926 let mut selected_larger_node = false;
6927 let new_selections = old_selections
6928 .iter()
6929 .map(|selection| {
6930 let old_range = selection.start..selection.end;
6931 let mut new_range = old_range.clone();
6932 while let Some(containing_range) =
6933 buffer.range_for_syntax_ancestor(new_range.clone())
6934 {
6935 new_range = containing_range;
6936 if !display_map.intersects_fold(new_range.start)
6937 && !display_map.intersects_fold(new_range.end)
6938 {
6939 break;
6940 }
6941 }
6942
6943 selected_larger_node |= new_range != old_range;
6944 Selection {
6945 id: selection.id,
6946 start: new_range.start,
6947 end: new_range.end,
6948 goal: SelectionGoal::None,
6949 reversed: selection.reversed,
6950 }
6951 })
6952 .collect::<Vec<_>>();
6953
6954 if selected_larger_node {
6955 stack.push(old_selections);
6956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6957 s.select(new_selections);
6958 });
6959 }
6960 self.select_larger_syntax_node_stack = stack;
6961 }
6962
6963 pub fn select_smaller_syntax_node(
6964 &mut self,
6965 _: &SelectSmallerSyntaxNode,
6966 cx: &mut ViewContext<Self>,
6967 ) {
6968 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6969 if let Some(selections) = stack.pop() {
6970 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6971 s.select(selections.to_vec());
6972 });
6973 }
6974 self.select_larger_syntax_node_stack = stack;
6975 }
6976
6977 pub fn move_to_enclosing_bracket(
6978 &mut self,
6979 _: &MoveToEnclosingBracket,
6980 cx: &mut ViewContext<Self>,
6981 ) {
6982 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6983 s.move_offsets_with(|snapshot, selection| {
6984 let Some(enclosing_bracket_ranges) =
6985 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
6986 else {
6987 return;
6988 };
6989
6990 let mut best_length = usize::MAX;
6991 let mut best_inside = false;
6992 let mut best_in_bracket_range = false;
6993 let mut best_destination = None;
6994 for (open, close) in enclosing_bracket_ranges {
6995 let close = close.to_inclusive();
6996 let length = close.end() - open.start;
6997 let inside = selection.start >= open.end && selection.end <= *close.start();
6998 let in_bracket_range = open.to_inclusive().contains(&selection.head())
6999 || close.contains(&selection.head());
7000
7001 // If best is next to a bracket and current isn't, skip
7002 if !in_bracket_range && best_in_bracket_range {
7003 continue;
7004 }
7005
7006 // Prefer smaller lengths unless best is inside and current isn't
7007 if length > best_length && (best_inside || !inside) {
7008 continue;
7009 }
7010
7011 best_length = length;
7012 best_inside = inside;
7013 best_in_bracket_range = in_bracket_range;
7014 best_destination = Some(
7015 if close.contains(&selection.start) && close.contains(&selection.end) {
7016 if inside {
7017 open.end
7018 } else {
7019 open.start
7020 }
7021 } else {
7022 if inside {
7023 *close.start()
7024 } else {
7025 *close.end()
7026 }
7027 },
7028 );
7029 }
7030
7031 if let Some(destination) = best_destination {
7032 selection.collapse_to(destination, SelectionGoal::None);
7033 }
7034 })
7035 });
7036 }
7037
7038 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7039 self.end_selection(cx);
7040 self.selection_history.mode = SelectionHistoryMode::Undoing;
7041 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7042 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7043 self.select_next_state = entry.select_next_state;
7044 self.select_prev_state = entry.select_prev_state;
7045 self.add_selections_state = entry.add_selections_state;
7046 self.request_autoscroll(Autoscroll::newest(), cx);
7047 }
7048 self.selection_history.mode = SelectionHistoryMode::Normal;
7049 }
7050
7051 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7052 self.end_selection(cx);
7053 self.selection_history.mode = SelectionHistoryMode::Redoing;
7054 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7055 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7056 self.select_next_state = entry.select_next_state;
7057 self.select_prev_state = entry.select_prev_state;
7058 self.add_selections_state = entry.add_selections_state;
7059 self.request_autoscroll(Autoscroll::newest(), cx);
7060 }
7061 self.selection_history.mode = SelectionHistoryMode::Normal;
7062 }
7063
7064 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7065 self.go_to_diagnostic_impl(Direction::Next, cx)
7066 }
7067
7068 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7069 self.go_to_diagnostic_impl(Direction::Prev, cx)
7070 }
7071
7072 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7073 let buffer = self.buffer.read(cx).snapshot(cx);
7074 let selection = self.selections.newest::<usize>(cx);
7075
7076 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7077 if direction == Direction::Next {
7078 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7079 let (group_id, jump_to) = popover.activation_info();
7080 if self.activate_diagnostics(group_id, cx) {
7081 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7082 let mut new_selection = s.newest_anchor().clone();
7083 new_selection.collapse_to(jump_to, SelectionGoal::None);
7084 s.select_anchors(vec![new_selection.clone()]);
7085 });
7086 }
7087 return;
7088 }
7089 }
7090
7091 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7092 active_diagnostics
7093 .primary_range
7094 .to_offset(&buffer)
7095 .to_inclusive()
7096 });
7097 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7098 if active_primary_range.contains(&selection.head()) {
7099 *active_primary_range.end()
7100 } else {
7101 selection.head()
7102 }
7103 } else {
7104 selection.head()
7105 };
7106
7107 loop {
7108 let mut diagnostics = if direction == Direction::Prev {
7109 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7110 } else {
7111 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7112 };
7113 let group = diagnostics.find_map(|entry| {
7114 if entry.diagnostic.is_primary
7115 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7116 && !entry.range.is_empty()
7117 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7118 && !entry.range.contains(&search_start)
7119 {
7120 Some((entry.range, entry.diagnostic.group_id))
7121 } else {
7122 None
7123 }
7124 });
7125
7126 if let Some((primary_range, group_id)) = group {
7127 if self.activate_diagnostics(group_id, cx) {
7128 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7129 s.select(vec![Selection {
7130 id: selection.id,
7131 start: primary_range.start,
7132 end: primary_range.start,
7133 reversed: false,
7134 goal: SelectionGoal::None,
7135 }]);
7136 });
7137 }
7138 break;
7139 } else {
7140 // Cycle around to the start of the buffer, potentially moving back to the start of
7141 // the currently active diagnostic.
7142 active_primary_range.take();
7143 if direction == Direction::Prev {
7144 if search_start == buffer.len() {
7145 break;
7146 } else {
7147 search_start = buffer.len();
7148 }
7149 } else if search_start == 0 {
7150 break;
7151 } else {
7152 search_start = 0;
7153 }
7154 }
7155 }
7156 }
7157
7158 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7159 let snapshot = self
7160 .display_map
7161 .update(cx, |display_map, cx| display_map.snapshot(cx));
7162 let selection = self.selections.newest::<Point>(cx);
7163
7164 if !self.seek_in_direction(
7165 &snapshot,
7166 selection.head(),
7167 false,
7168 snapshot
7169 .buffer_snapshot
7170 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7171 cx,
7172 ) {
7173 let wrapped_point = Point::zero();
7174 self.seek_in_direction(
7175 &snapshot,
7176 wrapped_point,
7177 true,
7178 snapshot
7179 .buffer_snapshot
7180 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7181 cx,
7182 );
7183 }
7184 }
7185
7186 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7187 let snapshot = self
7188 .display_map
7189 .update(cx, |display_map, cx| display_map.snapshot(cx));
7190 let selection = self.selections.newest::<Point>(cx);
7191
7192 if !self.seek_in_direction(
7193 &snapshot,
7194 selection.head(),
7195 false,
7196 snapshot
7197 .buffer_snapshot
7198 .git_diff_hunks_in_range_rev(0..selection.head().row),
7199 cx,
7200 ) {
7201 let wrapped_point = snapshot.buffer_snapshot.max_point();
7202 self.seek_in_direction(
7203 &snapshot,
7204 wrapped_point,
7205 true,
7206 snapshot
7207 .buffer_snapshot
7208 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7209 cx,
7210 );
7211 }
7212 }
7213
7214 fn seek_in_direction(
7215 &mut self,
7216 snapshot: &DisplaySnapshot,
7217 initial_point: Point,
7218 is_wrapped: bool,
7219 hunks: impl Iterator<Item = DiffHunk<u32>>,
7220 cx: &mut ViewContext<Editor>,
7221 ) -> bool {
7222 let display_point = initial_point.to_display_point(snapshot);
7223 let mut hunks = hunks
7224 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7225 .filter(|hunk| {
7226 if is_wrapped {
7227 true
7228 } else {
7229 !hunk.contains_display_row(display_point.row())
7230 }
7231 })
7232 .dedup();
7233
7234 if let Some(hunk) = hunks.next() {
7235 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7236 let row = hunk.start_display_row();
7237 let point = DisplayPoint::new(row, 0);
7238 s.select_display_ranges([point..point]);
7239 });
7240
7241 true
7242 } else {
7243 false
7244 }
7245 }
7246
7247 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7248 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7249 }
7250
7251 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7252 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7253 }
7254
7255 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7256 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7257 }
7258
7259 pub fn go_to_type_definition_split(
7260 &mut self,
7261 _: &GoToTypeDefinitionSplit,
7262 cx: &mut ViewContext<Self>,
7263 ) {
7264 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7265 }
7266
7267 fn go_to_definition_of_kind(
7268 &mut self,
7269 kind: GotoDefinitionKind,
7270 split: bool,
7271 cx: &mut ViewContext<Self>,
7272 ) {
7273 let Some(workspace) = self.workspace() else {
7274 return;
7275 };
7276 let buffer = self.buffer.read(cx);
7277 let head = self.selections.newest::<usize>(cx).head();
7278 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7279 text_anchor
7280 } else {
7281 return;
7282 };
7283
7284 let project = workspace.read(cx).project().clone();
7285 let definitions = project.update(cx, |project, cx| match kind {
7286 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7287 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7288 });
7289
7290 cx.spawn(|editor, mut cx| async move {
7291 let definitions = definitions.await?;
7292 editor.update(&mut cx, |editor, cx| {
7293 editor.navigate_to_hover_links(
7294 definitions.into_iter().map(HoverLink::Text).collect(),
7295 split,
7296 cx,
7297 );
7298 })?;
7299 Ok::<(), anyhow::Error>(())
7300 })
7301 .detach_and_log_err(cx);
7302 }
7303
7304 pub fn navigate_to_hover_links(
7305 &mut self,
7306 mut definitions: Vec<HoverLink>,
7307 split: bool,
7308 cx: &mut ViewContext<Editor>,
7309 ) {
7310 // If there is one definition, just open it directly
7311 if definitions.len() == 1 {
7312 let definition = definitions.pop().unwrap();
7313 let target_task = match definition {
7314 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7315 HoverLink::InlayHint(lsp_location, server_id) => {
7316 self.compute_target_location(lsp_location, server_id, cx)
7317 }
7318 HoverLink::Url(url) => {
7319 cx.open_url(&url);
7320 Task::ready(Ok(None))
7321 }
7322 };
7323 cx.spawn(|editor, mut cx| async move {
7324 let target = target_task.await.context("target resolution task")?;
7325 if let Some(target) = target {
7326 editor.update(&mut cx, |editor, cx| {
7327 let Some(workspace) = editor.workspace() else {
7328 return;
7329 };
7330 let pane = workspace.read(cx).active_pane().clone();
7331
7332 let range = target.range.to_offset(target.buffer.read(cx));
7333 let range = editor.range_for_match(&range);
7334 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7335 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7336 s.select_ranges([range]);
7337 });
7338 } else {
7339 cx.window_context().defer(move |cx| {
7340 let target_editor: View<Self> =
7341 workspace.update(cx, |workspace, cx| {
7342 if split {
7343 workspace.split_project_item(target.buffer.clone(), cx)
7344 } else {
7345 workspace.open_project_item(target.buffer.clone(), cx)
7346 }
7347 });
7348 target_editor.update(cx, |target_editor, cx| {
7349 // When selecting a definition in a different buffer, disable the nav history
7350 // to avoid creating a history entry at the previous cursor location.
7351 pane.update(cx, |pane, _| pane.disable_history());
7352 target_editor.change_selections(
7353 Some(Autoscroll::fit()),
7354 cx,
7355 |s| {
7356 s.select_ranges([range]);
7357 },
7358 );
7359 pane.update(cx, |pane, _| pane.enable_history());
7360 });
7361 });
7362 }
7363 })
7364 } else {
7365 Ok(())
7366 }
7367 })
7368 .detach_and_log_err(cx);
7369 } else if !definitions.is_empty() {
7370 let replica_id = self.replica_id(cx);
7371 cx.spawn(|editor, mut cx| async move {
7372 let (title, location_tasks, workspace) = editor
7373 .update(&mut cx, |editor, cx| {
7374 let title = definitions
7375 .iter()
7376 .find_map(|definition| match definition {
7377 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7378 let buffer = origin.buffer.read(cx);
7379 format!(
7380 "Definitions for {}",
7381 buffer
7382 .text_for_range(origin.range.clone())
7383 .collect::<String>()
7384 )
7385 }),
7386 HoverLink::InlayHint(_, _) => None,
7387 HoverLink::Url(_) => None,
7388 })
7389 .unwrap_or("Definitions".to_string());
7390 let location_tasks = definitions
7391 .into_iter()
7392 .map(|definition| match definition {
7393 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7394 HoverLink::InlayHint(lsp_location, server_id) => {
7395 editor.compute_target_location(lsp_location, server_id, cx)
7396 }
7397 HoverLink::Url(_) => Task::ready(Ok(None)),
7398 })
7399 .collect::<Vec<_>>();
7400 (title, location_tasks, editor.workspace().clone())
7401 })
7402 .context("location tasks preparation")?;
7403
7404 let locations = futures::future::join_all(location_tasks)
7405 .await
7406 .into_iter()
7407 .filter_map(|location| location.transpose())
7408 .collect::<Result<_>>()
7409 .context("location tasks")?;
7410
7411 let Some(workspace) = workspace else {
7412 return Ok(());
7413 };
7414 workspace
7415 .update(&mut cx, |workspace, cx| {
7416 Self::open_locations_in_multibuffer(
7417 workspace, locations, replica_id, title, split, cx,
7418 )
7419 })
7420 .ok();
7421
7422 anyhow::Ok(())
7423 })
7424 .detach_and_log_err(cx);
7425 }
7426 }
7427
7428 fn compute_target_location(
7429 &self,
7430 lsp_location: lsp::Location,
7431 server_id: LanguageServerId,
7432 cx: &mut ViewContext<Editor>,
7433 ) -> Task<anyhow::Result<Option<Location>>> {
7434 let Some(project) = self.project.clone() else {
7435 return Task::Ready(Some(Ok(None)));
7436 };
7437
7438 cx.spawn(move |editor, mut cx| async move {
7439 let location_task = editor.update(&mut cx, |editor, cx| {
7440 project.update(cx, |project, cx| {
7441 let language_server_name =
7442 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7443 project
7444 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7445 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7446 });
7447 language_server_name.map(|language_server_name| {
7448 project.open_local_buffer_via_lsp(
7449 lsp_location.uri.clone(),
7450 server_id,
7451 language_server_name,
7452 cx,
7453 )
7454 })
7455 })
7456 })?;
7457 let location = match location_task {
7458 Some(task) => Some({
7459 let target_buffer_handle = task.await.context("open local buffer")?;
7460 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7461 let target_start = target_buffer
7462 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7463 let target_end = target_buffer
7464 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7465 target_buffer.anchor_after(target_start)
7466 ..target_buffer.anchor_before(target_end)
7467 })?;
7468 Location {
7469 buffer: target_buffer_handle,
7470 range,
7471 }
7472 }),
7473 None => None,
7474 };
7475 Ok(location)
7476 })
7477 }
7478
7479 pub fn find_all_references(
7480 &mut self,
7481 _: &FindAllReferences,
7482 cx: &mut ViewContext<Self>,
7483 ) -> Option<Task<Result<()>>> {
7484 let buffer = self.buffer.read(cx);
7485 let head = self.selections.newest::<usize>(cx).head();
7486 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7487 let replica_id = self.replica_id(cx);
7488
7489 let workspace = self.workspace()?;
7490 let project = workspace.read(cx).project().clone();
7491 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7492 Some(cx.spawn(|_, mut cx| async move {
7493 let locations = references.await?;
7494 if locations.is_empty() {
7495 return Ok(());
7496 }
7497
7498 workspace.update(&mut cx, |workspace, cx| {
7499 let title = locations
7500 .first()
7501 .as_ref()
7502 .map(|location| {
7503 let buffer = location.buffer.read(cx);
7504 format!(
7505 "References to `{}`",
7506 buffer
7507 .text_for_range(location.range.clone())
7508 .collect::<String>()
7509 )
7510 })
7511 .unwrap();
7512 Self::open_locations_in_multibuffer(
7513 workspace, locations, replica_id, title, false, cx,
7514 );
7515 })?;
7516
7517 Ok(())
7518 }))
7519 }
7520
7521 /// Opens a multibuffer with the given project locations in it
7522 pub fn open_locations_in_multibuffer(
7523 workspace: &mut Workspace,
7524 mut locations: Vec<Location>,
7525 replica_id: ReplicaId,
7526 title: String,
7527 split: bool,
7528 cx: &mut ViewContext<Workspace>,
7529 ) {
7530 // If there are multiple definitions, open them in a multibuffer
7531 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7532 let mut locations = locations.into_iter().peekable();
7533 let mut ranges_to_highlight = Vec::new();
7534 let capability = workspace.project().read(cx).capability();
7535
7536 let excerpt_buffer = cx.new_model(|cx| {
7537 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7538 while let Some(location) = locations.next() {
7539 let buffer = location.buffer.read(cx);
7540 let mut ranges_for_buffer = Vec::new();
7541 let range = location.range.to_offset(buffer);
7542 ranges_for_buffer.push(range.clone());
7543
7544 while let Some(next_location) = locations.peek() {
7545 if next_location.buffer == location.buffer {
7546 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7547 locations.next();
7548 } else {
7549 break;
7550 }
7551 }
7552
7553 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7554 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7555 location.buffer.clone(),
7556 ranges_for_buffer,
7557 1,
7558 cx,
7559 ))
7560 }
7561
7562 multibuffer.with_title(title)
7563 });
7564
7565 let editor = cx.new_view(|cx| {
7566 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7567 });
7568 editor.update(cx, |editor, cx| {
7569 editor.highlight_background::<Self>(
7570 ranges_to_highlight,
7571 |theme| theme.editor_highlighted_line_background,
7572 cx,
7573 );
7574 });
7575 if split {
7576 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7577 } else {
7578 workspace.add_item(Box::new(editor), cx);
7579 }
7580 }
7581
7582 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7583 use language::ToOffset as _;
7584
7585 let project = self.project.clone()?;
7586 let selection = self.selections.newest_anchor().clone();
7587 let (cursor_buffer, cursor_buffer_position) = self
7588 .buffer
7589 .read(cx)
7590 .text_anchor_for_position(selection.head(), cx)?;
7591 let (tail_buffer, _) = self
7592 .buffer
7593 .read(cx)
7594 .text_anchor_for_position(selection.tail(), cx)?;
7595 if tail_buffer != cursor_buffer {
7596 return None;
7597 }
7598
7599 let snapshot = cursor_buffer.read(cx).snapshot();
7600 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7601 let prepare_rename = project.update(cx, |project, cx| {
7602 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
7603 });
7604
7605 Some(cx.spawn(|this, mut cx| async move {
7606 let rename_range = if let Some(range) = prepare_rename.await? {
7607 Some(range)
7608 } else {
7609 this.update(&mut cx, |this, cx| {
7610 let buffer = this.buffer.read(cx).snapshot(cx);
7611 let mut buffer_highlights = this
7612 .document_highlights_for_position(selection.head(), &buffer)
7613 .filter(|highlight| {
7614 highlight.start.excerpt_id == selection.head().excerpt_id
7615 && highlight.end.excerpt_id == selection.head().excerpt_id
7616 });
7617 buffer_highlights
7618 .next()
7619 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7620 })?
7621 };
7622 if let Some(rename_range) = rename_range {
7623 let rename_buffer_range = rename_range.to_offset(&snapshot);
7624 let cursor_offset_in_rename_range =
7625 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7626
7627 this.update(&mut cx, |this, cx| {
7628 this.take_rename(false, cx);
7629 let buffer = this.buffer.read(cx).read(cx);
7630 let cursor_offset = selection.head().to_offset(&buffer);
7631 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7632 let rename_end = rename_start + rename_buffer_range.len();
7633 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7634 let mut old_highlight_id = None;
7635 let old_name: Arc<str> = buffer
7636 .chunks(rename_start..rename_end, true)
7637 .map(|chunk| {
7638 if old_highlight_id.is_none() {
7639 old_highlight_id = chunk.syntax_highlight_id;
7640 }
7641 chunk.text
7642 })
7643 .collect::<String>()
7644 .into();
7645
7646 drop(buffer);
7647
7648 // Position the selection in the rename editor so that it matches the current selection.
7649 this.show_local_selections = false;
7650 let rename_editor = cx.new_view(|cx| {
7651 let mut editor = Editor::single_line(cx);
7652 editor.buffer.update(cx, |buffer, cx| {
7653 buffer.edit([(0..0, old_name.clone())], None, cx)
7654 });
7655 editor.select_all(&SelectAll, cx);
7656 editor
7657 });
7658
7659 let ranges = this
7660 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7661 .into_iter()
7662 .flat_map(|(_, ranges)| ranges.into_iter())
7663 .chain(
7664 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7665 .into_iter()
7666 .flat_map(|(_, ranges)| ranges.into_iter()),
7667 )
7668 .collect();
7669
7670 this.highlight_text::<Rename>(
7671 ranges,
7672 HighlightStyle {
7673 fade_out: Some(0.6),
7674 ..Default::default()
7675 },
7676 cx,
7677 );
7678 let rename_focus_handle = rename_editor.focus_handle(cx);
7679 cx.focus(&rename_focus_handle);
7680 let block_id = this.insert_blocks(
7681 [BlockProperties {
7682 style: BlockStyle::Flex,
7683 position: range.start.clone(),
7684 height: 1,
7685 render: Arc::new({
7686 let rename_editor = rename_editor.clone();
7687 move |cx: &mut BlockContext| {
7688 let mut text_style = cx.editor_style.text.clone();
7689 if let Some(highlight_style) = old_highlight_id
7690 .and_then(|h| h.style(&cx.editor_style.syntax))
7691 {
7692 text_style = text_style.highlight(highlight_style);
7693 }
7694 div()
7695 .pl(cx.anchor_x)
7696 .child(EditorElement::new(
7697 &rename_editor,
7698 EditorStyle {
7699 background: cx.theme().system().transparent,
7700 local_player: cx.editor_style.local_player,
7701 text: text_style,
7702 scrollbar_width: cx.editor_style.scrollbar_width,
7703 syntax: cx.editor_style.syntax.clone(),
7704 status: cx.editor_style.status.clone(),
7705 inlays_style: HighlightStyle {
7706 color: Some(cx.theme().status().hint),
7707 font_weight: Some(FontWeight::BOLD),
7708 ..HighlightStyle::default()
7709 },
7710 suggestions_style: HighlightStyle {
7711 color: Some(cx.theme().status().predictive),
7712 ..HighlightStyle::default()
7713 },
7714 },
7715 ))
7716 .into_any_element()
7717 }
7718 }),
7719 disposition: BlockDisposition::Below,
7720 }],
7721 Some(Autoscroll::fit()),
7722 cx,
7723 )[0];
7724 this.pending_rename = Some(RenameState {
7725 range,
7726 old_name,
7727 editor: rename_editor,
7728 block_id,
7729 });
7730 })?;
7731 }
7732
7733 Ok(())
7734 }))
7735 }
7736
7737 pub fn confirm_rename(
7738 &mut self,
7739 _: &ConfirmRename,
7740 cx: &mut ViewContext<Self>,
7741 ) -> Option<Task<Result<()>>> {
7742 let rename = self.take_rename(false, cx)?;
7743 let workspace = self.workspace()?;
7744 let (start_buffer, start) = self
7745 .buffer
7746 .read(cx)
7747 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7748 let (end_buffer, end) = self
7749 .buffer
7750 .read(cx)
7751 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7752 if start_buffer != end_buffer {
7753 return None;
7754 }
7755
7756 let buffer = start_buffer;
7757 let range = start..end;
7758 let old_name = rename.old_name;
7759 let new_name = rename.editor.read(cx).text(cx);
7760
7761 let rename = workspace
7762 .read(cx)
7763 .project()
7764 .clone()
7765 .update(cx, |project, cx| {
7766 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7767 });
7768 let workspace = workspace.downgrade();
7769
7770 Some(cx.spawn(|editor, mut cx| async move {
7771 let project_transaction = rename.await?;
7772 Self::open_project_transaction(
7773 &editor,
7774 workspace,
7775 project_transaction,
7776 format!("Rename: {} → {}", old_name, new_name),
7777 cx.clone(),
7778 )
7779 .await?;
7780
7781 editor.update(&mut cx, |editor, cx| {
7782 editor.refresh_document_highlights(cx);
7783 })?;
7784 Ok(())
7785 }))
7786 }
7787
7788 fn take_rename(
7789 &mut self,
7790 moving_cursor: bool,
7791 cx: &mut ViewContext<Self>,
7792 ) -> Option<RenameState> {
7793 let rename = self.pending_rename.take()?;
7794 if rename.editor.focus_handle(cx).is_focused(cx) {
7795 cx.focus(&self.focus_handle);
7796 }
7797
7798 self.remove_blocks(
7799 [rename.block_id].into_iter().collect(),
7800 Some(Autoscroll::fit()),
7801 cx,
7802 );
7803 self.clear_highlights::<Rename>(cx);
7804 self.show_local_selections = true;
7805
7806 if moving_cursor {
7807 let rename_editor = rename.editor.read(cx);
7808 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7809
7810 // Update the selection to match the position of the selection inside
7811 // the rename editor.
7812 let snapshot = self.buffer.read(cx).read(cx);
7813 let rename_range = rename.range.to_offset(&snapshot);
7814 let cursor_in_editor = snapshot
7815 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7816 .min(rename_range.end);
7817 drop(snapshot);
7818
7819 self.change_selections(None, cx, |s| {
7820 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7821 });
7822 } else {
7823 self.refresh_document_highlights(cx);
7824 }
7825
7826 Some(rename)
7827 }
7828
7829 #[cfg(any(test, feature = "test-support"))]
7830 pub fn pending_rename(&self) -> Option<&RenameState> {
7831 self.pending_rename.as_ref()
7832 }
7833
7834 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7835 let project = match &self.project {
7836 Some(project) => project.clone(),
7837 None => return None,
7838 };
7839
7840 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7841 }
7842
7843 fn perform_format(
7844 &mut self,
7845 project: Model<Project>,
7846 trigger: FormatTrigger,
7847 cx: &mut ViewContext<Self>,
7848 ) -> Task<Result<()>> {
7849 let buffer = self.buffer().clone();
7850 let buffers = buffer.read(cx).all_buffers();
7851
7852 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7853 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7854
7855 cx.spawn(|_, mut cx| async move {
7856 let transaction = futures::select_biased! {
7857 _ = timeout => {
7858 log::warn!("timed out waiting for formatting");
7859 None
7860 }
7861 transaction = format.log_err().fuse() => transaction,
7862 };
7863
7864 buffer
7865 .update(&mut cx, |buffer, cx| {
7866 if let Some(transaction) = transaction {
7867 if !buffer.is_singleton() {
7868 buffer.push_transaction(&transaction.0, cx);
7869 }
7870 }
7871
7872 cx.notify();
7873 })
7874 .ok();
7875
7876 Ok(())
7877 })
7878 }
7879
7880 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7881 if let Some(project) = self.project.clone() {
7882 self.buffer.update(cx, |multi_buffer, cx| {
7883 project.update(cx, |project, cx| {
7884 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7885 });
7886 })
7887 }
7888 }
7889
7890 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7891 cx.show_character_palette();
7892 }
7893
7894 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7895 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7896 let buffer = self.buffer.read(cx).snapshot(cx);
7897 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7898 let is_valid = buffer
7899 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7900 .any(|entry| {
7901 entry.diagnostic.is_primary
7902 && !entry.range.is_empty()
7903 && entry.range.start == primary_range_start
7904 && entry.diagnostic.message == active_diagnostics.primary_message
7905 });
7906
7907 if is_valid != active_diagnostics.is_valid {
7908 active_diagnostics.is_valid = is_valid;
7909 let mut new_styles = HashMap::default();
7910 for (block_id, diagnostic) in &active_diagnostics.blocks {
7911 new_styles.insert(
7912 *block_id,
7913 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7914 );
7915 }
7916 self.display_map
7917 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7918 }
7919 }
7920 }
7921
7922 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7923 self.dismiss_diagnostics(cx);
7924 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7925 let buffer = self.buffer.read(cx).snapshot(cx);
7926
7927 let mut primary_range = None;
7928 let mut primary_message = None;
7929 let mut group_end = Point::zero();
7930 let diagnostic_group = buffer
7931 .diagnostic_group::<Point>(group_id)
7932 .map(|entry| {
7933 if entry.range.end > group_end {
7934 group_end = entry.range.end;
7935 }
7936 if entry.diagnostic.is_primary {
7937 primary_range = Some(entry.range.clone());
7938 primary_message = Some(entry.diagnostic.message.clone());
7939 }
7940 entry
7941 })
7942 .collect::<Vec<_>>();
7943 let primary_range = primary_range?;
7944 let primary_message = primary_message?;
7945 let primary_range =
7946 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
7947
7948 let blocks = display_map
7949 .insert_blocks(
7950 diagnostic_group.iter().map(|entry| {
7951 let diagnostic = entry.diagnostic.clone();
7952 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
7953 BlockProperties {
7954 style: BlockStyle::Fixed,
7955 position: buffer.anchor_after(entry.range.start),
7956 height: message_height,
7957 render: diagnostic_block_renderer(diagnostic, true),
7958 disposition: BlockDisposition::Below,
7959 }
7960 }),
7961 cx,
7962 )
7963 .into_iter()
7964 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
7965 .collect();
7966
7967 Some(ActiveDiagnosticGroup {
7968 primary_range,
7969 primary_message,
7970 blocks,
7971 is_valid: true,
7972 })
7973 });
7974 self.active_diagnostics.is_some()
7975 }
7976
7977 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
7978 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
7979 self.display_map.update(cx, |display_map, cx| {
7980 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
7981 });
7982 cx.notify();
7983 }
7984 }
7985
7986 pub fn set_selections_from_remote(
7987 &mut self,
7988 selections: Vec<Selection<Anchor>>,
7989 pending_selection: Option<Selection<Anchor>>,
7990 cx: &mut ViewContext<Self>,
7991 ) {
7992 let old_cursor_position = self.selections.newest_anchor().head();
7993 self.selections.change_with(cx, |s| {
7994 s.select_anchors(selections);
7995 if let Some(pending_selection) = pending_selection {
7996 s.set_pending(pending_selection, SelectMode::Character);
7997 } else {
7998 s.clear_pending();
7999 }
8000 });
8001 self.selections_did_change(false, &old_cursor_position, cx);
8002 }
8003
8004 fn push_to_selection_history(&mut self) {
8005 self.selection_history.push(SelectionHistoryEntry {
8006 selections: self.selections.disjoint_anchors(),
8007 select_next_state: self.select_next_state.clone(),
8008 select_prev_state: self.select_prev_state.clone(),
8009 add_selections_state: self.add_selections_state.clone(),
8010 });
8011 }
8012
8013 pub fn transact(
8014 &mut self,
8015 cx: &mut ViewContext<Self>,
8016 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8017 ) -> Option<TransactionId> {
8018 self.start_transaction_at(Instant::now(), cx);
8019 update(self, cx);
8020 self.end_transaction_at(Instant::now(), cx)
8021 }
8022
8023 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8024 self.end_selection(cx);
8025 if let Some(tx_id) = self
8026 .buffer
8027 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8028 {
8029 self.selection_history
8030 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8031 }
8032 }
8033
8034 fn end_transaction_at(
8035 &mut self,
8036 now: Instant,
8037 cx: &mut ViewContext<Self>,
8038 ) -> Option<TransactionId> {
8039 if let Some(tx_id) = self
8040 .buffer
8041 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8042 {
8043 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8044 *end_selections = Some(self.selections.disjoint_anchors());
8045 } else {
8046 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8047 }
8048
8049 cx.emit(EditorEvent::Edited);
8050 Some(tx_id)
8051 } else {
8052 None
8053 }
8054 }
8055
8056 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8057 let mut fold_ranges = Vec::new();
8058
8059 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8060
8061 let selections = self.selections.all_adjusted(cx);
8062 for selection in selections {
8063 let range = selection.range().sorted();
8064 let buffer_start_row = range.start.row;
8065
8066 for row in (0..=range.end.row).rev() {
8067 let fold_range = display_map.foldable_range(row);
8068
8069 if let Some(fold_range) = fold_range {
8070 if fold_range.end.row >= buffer_start_row {
8071 fold_ranges.push(fold_range);
8072 if row <= range.start.row {
8073 break;
8074 }
8075 }
8076 }
8077 }
8078 }
8079
8080 self.fold_ranges(fold_ranges, true, cx);
8081 }
8082
8083 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8084 let buffer_row = fold_at.buffer_row;
8085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8086
8087 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8088 let autoscroll = self
8089 .selections
8090 .all::<Point>(cx)
8091 .iter()
8092 .any(|selection| fold_range.overlaps(&selection.range()));
8093
8094 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8095 }
8096 }
8097
8098 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8099 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8100 let buffer = &display_map.buffer_snapshot;
8101 let selections = self.selections.all::<Point>(cx);
8102 let ranges = selections
8103 .iter()
8104 .map(|s| {
8105 let range = s.display_range(&display_map).sorted();
8106 let mut start = range.start.to_point(&display_map);
8107 let mut end = range.end.to_point(&display_map);
8108 start.column = 0;
8109 end.column = buffer.line_len(end.row);
8110 start..end
8111 })
8112 .collect::<Vec<_>>();
8113
8114 self.unfold_ranges(ranges, true, true, cx);
8115 }
8116
8117 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8119
8120 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8121 ..Point::new(
8122 unfold_at.buffer_row,
8123 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8124 );
8125
8126 let autoscroll = self
8127 .selections
8128 .all::<Point>(cx)
8129 .iter()
8130 .any(|selection| selection.range().overlaps(&intersection_range));
8131
8132 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8133 }
8134
8135 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8136 let selections = self.selections.all::<Point>(cx);
8137 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8138 let line_mode = self.selections.line_mode;
8139 let ranges = selections.into_iter().map(|s| {
8140 if line_mode {
8141 let start = Point::new(s.start.row, 0);
8142 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8143 start..end
8144 } else {
8145 s.start..s.end
8146 }
8147 });
8148 self.fold_ranges(ranges, true, cx);
8149 }
8150
8151 pub fn fold_ranges<T: ToOffset + Clone>(
8152 &mut self,
8153 ranges: impl IntoIterator<Item = Range<T>>,
8154 auto_scroll: bool,
8155 cx: &mut ViewContext<Self>,
8156 ) {
8157 let mut ranges = ranges.into_iter().peekable();
8158 if ranges.peek().is_some() {
8159 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8160
8161 if auto_scroll {
8162 self.request_autoscroll(Autoscroll::fit(), cx);
8163 }
8164
8165 cx.notify();
8166 }
8167 }
8168
8169 pub fn unfold_ranges<T: ToOffset + Clone>(
8170 &mut self,
8171 ranges: impl IntoIterator<Item = Range<T>>,
8172 inclusive: bool,
8173 auto_scroll: bool,
8174 cx: &mut ViewContext<Self>,
8175 ) {
8176 let mut ranges = ranges.into_iter().peekable();
8177 if ranges.peek().is_some() {
8178 self.display_map
8179 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8180 if auto_scroll {
8181 self.request_autoscroll(Autoscroll::fit(), cx);
8182 }
8183
8184 cx.notify();
8185 }
8186 }
8187
8188 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8189 if hovered != self.gutter_hovered {
8190 self.gutter_hovered = hovered;
8191 cx.notify();
8192 }
8193 }
8194
8195 pub fn insert_blocks(
8196 &mut self,
8197 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8198 autoscroll: Option<Autoscroll>,
8199 cx: &mut ViewContext<Self>,
8200 ) -> Vec<BlockId> {
8201 let blocks = self
8202 .display_map
8203 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8204 if let Some(autoscroll) = autoscroll {
8205 self.request_autoscroll(autoscroll, cx);
8206 }
8207 blocks
8208 }
8209
8210 pub fn replace_blocks(
8211 &mut self,
8212 blocks: HashMap<BlockId, RenderBlock>,
8213 autoscroll: Option<Autoscroll>,
8214 cx: &mut ViewContext<Self>,
8215 ) {
8216 self.display_map
8217 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8218 if let Some(autoscroll) = autoscroll {
8219 self.request_autoscroll(autoscroll, cx);
8220 }
8221 }
8222
8223 pub fn remove_blocks(
8224 &mut self,
8225 block_ids: HashSet<BlockId>,
8226 autoscroll: Option<Autoscroll>,
8227 cx: &mut ViewContext<Self>,
8228 ) {
8229 self.display_map.update(cx, |display_map, cx| {
8230 display_map.remove_blocks(block_ids, cx)
8231 });
8232 if let Some(autoscroll) = autoscroll {
8233 self.request_autoscroll(autoscroll, cx);
8234 }
8235 }
8236
8237 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8238 self.display_map
8239 .update(cx, |map, cx| map.snapshot(cx))
8240 .longest_row()
8241 }
8242
8243 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8244 self.display_map
8245 .update(cx, |map, cx| map.snapshot(cx))
8246 .max_point()
8247 }
8248
8249 pub fn text(&self, cx: &AppContext) -> String {
8250 self.buffer.read(cx).read(cx).text()
8251 }
8252
8253 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8254 let text = self.text(cx);
8255 let text = text.trim();
8256
8257 if text.is_empty() {
8258 return None;
8259 }
8260
8261 Some(text.to_string())
8262 }
8263
8264 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8265 self.transact(cx, |this, cx| {
8266 this.buffer
8267 .read(cx)
8268 .as_singleton()
8269 .expect("you can only call set_text on editors for singleton buffers")
8270 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8271 });
8272 }
8273
8274 pub fn display_text(&self, cx: &mut AppContext) -> String {
8275 self.display_map
8276 .update(cx, |map, cx| map.snapshot(cx))
8277 .text()
8278 }
8279
8280 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8281 let mut wrap_guides = smallvec::smallvec![];
8282
8283 if self.show_wrap_guides == Some(false) {
8284 return wrap_guides;
8285 }
8286
8287 let settings = self.buffer.read(cx).settings_at(0, cx);
8288 if settings.show_wrap_guides {
8289 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8290 wrap_guides.push((soft_wrap as usize, true));
8291 }
8292 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8293 }
8294
8295 wrap_guides
8296 }
8297
8298 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8299 let settings = self.buffer.read(cx).settings_at(0, cx);
8300 let mode = self
8301 .soft_wrap_mode_override
8302 .unwrap_or_else(|| settings.soft_wrap);
8303 match mode {
8304 language_settings::SoftWrap::None => SoftWrap::None,
8305 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8306 language_settings::SoftWrap::PreferredLineLength => {
8307 SoftWrap::Column(settings.preferred_line_length)
8308 }
8309 }
8310 }
8311
8312 pub fn set_soft_wrap_mode(
8313 &mut self,
8314 mode: language_settings::SoftWrap,
8315 cx: &mut ViewContext<Self>,
8316 ) {
8317 self.soft_wrap_mode_override = Some(mode);
8318 cx.notify();
8319 }
8320
8321 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8322 let rem_size = cx.rem_size();
8323 self.display_map.update(cx, |map, cx| {
8324 map.set_font(
8325 style.text.font(),
8326 style.text.font_size.to_pixels(rem_size),
8327 cx,
8328 )
8329 });
8330 self.style = Some(style);
8331 }
8332
8333 #[cfg(any(test, feature = "test-support"))]
8334 pub fn style(&self) -> Option<&EditorStyle> {
8335 self.style.as_ref()
8336 }
8337
8338 // Called by the element. This method is not designed to be called outside of the editor
8339 // element's layout code because it does not notify when rewrapping is computed synchronously.
8340 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8341 self.display_map
8342 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8343 }
8344
8345 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8346 if self.soft_wrap_mode_override.is_some() {
8347 self.soft_wrap_mode_override.take();
8348 } else {
8349 let soft_wrap = match self.soft_wrap_mode(cx) {
8350 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8351 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8352 };
8353 self.soft_wrap_mode_override = Some(soft_wrap);
8354 }
8355 cx.notify();
8356 }
8357
8358 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8359 self.show_gutter = show_gutter;
8360 cx.notify();
8361 }
8362
8363 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8364 self.show_wrap_guides = Some(show_gutter);
8365 cx.notify();
8366 }
8367
8368 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8369 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8370 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8371 cx.reveal_path(&file.abs_path(cx));
8372 }
8373 }
8374 }
8375
8376 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8377 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8378 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8379 if let Some(path) = file.abs_path(cx).to_str() {
8380 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8381 }
8382 }
8383 }
8384 }
8385
8386 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8387 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8388 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8389 if let Some(path) = file.path().to_str() {
8390 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8391 }
8392 }
8393 }
8394 }
8395
8396 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8397 use git::permalink::{build_permalink, BuildPermalinkParams};
8398
8399 let permalink = maybe!({
8400 let project = self.project.clone().ok_or_else(|| anyhow!("no project"))?;
8401 let project = project.read(cx);
8402
8403 let worktree = project
8404 .visible_worktrees(cx)
8405 .next()
8406 .ok_or_else(|| anyhow!("no worktree"))?;
8407
8408 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8409 cwd.push(".git");
8410
8411 const REMOTE_NAME: &'static str = "origin";
8412 let repo = project
8413 .fs()
8414 .open_repo(&cwd)
8415 .ok_or_else(|| anyhow!("no Git repo"))?;
8416 let origin_url = repo
8417 .lock()
8418 .remote_url(REMOTE_NAME)
8419 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8420 let sha = repo
8421 .lock()
8422 .head_sha()
8423 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8424
8425 let path = maybe!({
8426 let buffer = self.buffer().read(cx).as_singleton()?;
8427 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8428 file.path().to_str().map(|path| path.to_string())
8429 })
8430 .ok_or_else(|| anyhow!("failed to determine file path"))?;
8431
8432 let selections = self.selections.all::<Point>(cx);
8433 let selection = selections.iter().peekable().next();
8434
8435 build_permalink(BuildPermalinkParams {
8436 remote_url: &origin_url,
8437 sha: &sha,
8438 path: &path,
8439 selection: selection.map(|selection| selection.range()),
8440 })
8441 });
8442 permalink
8443 }
8444
8445 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8446 let permalink = self.get_permalink_to_line(cx);
8447
8448 match permalink {
8449 Ok(permalink) => {
8450 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8451 }
8452 Err(err) => {
8453 let message = format!("Failed to copy permalink: {err}");
8454
8455 Err::<(), anyhow::Error>(err).log_err();
8456
8457 if let Some(workspace) = self.workspace() {
8458 workspace.update(cx, |workspace, cx| {
8459 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8460 })
8461 }
8462 }
8463 }
8464 }
8465
8466 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8467 let permalink = self.get_permalink_to_line(cx);
8468
8469 match permalink {
8470 Ok(permalink) => {
8471 cx.open_url(&permalink.to_string());
8472 }
8473 Err(err) => {
8474 let message = format!("Failed to open permalink: {err}");
8475
8476 Err::<(), anyhow::Error>(err).log_err();
8477
8478 if let Some(workspace) = self.workspace() {
8479 workspace.update(cx, |workspace, cx| {
8480 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8481 })
8482 }
8483 }
8484 }
8485 }
8486
8487 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8488 self.highlighted_rows = rows;
8489 }
8490
8491 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8492 self.highlighted_rows.clone()
8493 }
8494
8495 pub fn highlight_background<T: 'static>(
8496 &mut self,
8497 ranges: Vec<Range<Anchor>>,
8498 color_fetcher: fn(&ThemeColors) -> Hsla,
8499 cx: &mut ViewContext<Self>,
8500 ) {
8501 self.background_highlights
8502 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8503 cx.notify();
8504 }
8505
8506 pub(crate) fn highlight_inlay_background<T: 'static>(
8507 &mut self,
8508 ranges: Vec<InlayHighlight>,
8509 color_fetcher: fn(&ThemeColors) -> Hsla,
8510 cx: &mut ViewContext<Self>,
8511 ) {
8512 // TODO: no actual highlights happen for inlays currently, find a way to do that
8513 self.inlay_background_highlights
8514 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8515 cx.notify();
8516 }
8517
8518 pub fn clear_background_highlights<T: 'static>(
8519 &mut self,
8520 cx: &mut ViewContext<Self>,
8521 ) -> Option<BackgroundHighlight> {
8522 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8523 let inlay_highlights = self
8524 .inlay_background_highlights
8525 .remove(&Some(TypeId::of::<T>()));
8526 if text_highlights.is_some() || inlay_highlights.is_some() {
8527 cx.notify();
8528 }
8529 text_highlights
8530 }
8531
8532 #[cfg(feature = "test-support")]
8533 pub fn all_text_background_highlights(
8534 &mut self,
8535 cx: &mut ViewContext<Self>,
8536 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8537 let snapshot = self.snapshot(cx);
8538 let buffer = &snapshot.buffer_snapshot;
8539 let start = buffer.anchor_before(0);
8540 let end = buffer.anchor_after(buffer.len());
8541 let theme = cx.theme().colors();
8542 self.background_highlights_in_range(start..end, &snapshot, theme)
8543 }
8544
8545 fn document_highlights_for_position<'a>(
8546 &'a self,
8547 position: Anchor,
8548 buffer: &'a MultiBufferSnapshot,
8549 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8550 let read_highlights = self
8551 .background_highlights
8552 .get(&TypeId::of::<DocumentHighlightRead>())
8553 .map(|h| &h.1);
8554 let write_highlights = self
8555 .background_highlights
8556 .get(&TypeId::of::<DocumentHighlightWrite>())
8557 .map(|h| &h.1);
8558 let left_position = position.bias_left(buffer);
8559 let right_position = position.bias_right(buffer);
8560 read_highlights
8561 .into_iter()
8562 .chain(write_highlights)
8563 .flat_map(move |ranges| {
8564 let start_ix = match ranges.binary_search_by(|probe| {
8565 let cmp = probe.end.cmp(&left_position, buffer);
8566 if cmp.is_ge() {
8567 Ordering::Greater
8568 } else {
8569 Ordering::Less
8570 }
8571 }) {
8572 Ok(i) | Err(i) => i,
8573 };
8574
8575 let right_position = right_position.clone();
8576 ranges[start_ix..]
8577 .iter()
8578 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8579 })
8580 }
8581
8582 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8583 self.background_highlights
8584 .get(&TypeId::of::<T>())
8585 .map_or(false, |(_, highlights)| !highlights.is_empty())
8586 }
8587
8588 pub fn background_highlights_in_range(
8589 &self,
8590 search_range: Range<Anchor>,
8591 display_snapshot: &DisplaySnapshot,
8592 theme: &ThemeColors,
8593 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8594 let mut results = Vec::new();
8595 for (color_fetcher, ranges) in self.background_highlights.values() {
8596 let color = color_fetcher(theme);
8597 let start_ix = match ranges.binary_search_by(|probe| {
8598 let cmp = probe
8599 .end
8600 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8601 if cmp.is_gt() {
8602 Ordering::Greater
8603 } else {
8604 Ordering::Less
8605 }
8606 }) {
8607 Ok(i) | Err(i) => i,
8608 };
8609 for range in &ranges[start_ix..] {
8610 if range
8611 .start
8612 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8613 .is_ge()
8614 {
8615 break;
8616 }
8617
8618 let start = range.start.to_display_point(&display_snapshot);
8619 let end = range.end.to_display_point(&display_snapshot);
8620 results.push((start..end, color))
8621 }
8622 }
8623 results
8624 }
8625
8626 pub fn background_highlight_row_ranges<T: 'static>(
8627 &self,
8628 search_range: Range<Anchor>,
8629 display_snapshot: &DisplaySnapshot,
8630 count: usize,
8631 ) -> Vec<RangeInclusive<DisplayPoint>> {
8632 let mut results = Vec::new();
8633 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8634 return vec![];
8635 };
8636
8637 let start_ix = match ranges.binary_search_by(|probe| {
8638 let cmp = probe
8639 .end
8640 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8641 if cmp.is_gt() {
8642 Ordering::Greater
8643 } else {
8644 Ordering::Less
8645 }
8646 }) {
8647 Ok(i) | Err(i) => i,
8648 };
8649 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8650 if let (Some(start_display), Some(end_display)) = (start, end) {
8651 results.push(
8652 start_display.to_display_point(display_snapshot)
8653 ..=end_display.to_display_point(display_snapshot),
8654 );
8655 }
8656 };
8657 let mut start_row: Option<Point> = None;
8658 let mut end_row: Option<Point> = None;
8659 if ranges.len() > count {
8660 return Vec::new();
8661 }
8662 for range in &ranges[start_ix..] {
8663 if range
8664 .start
8665 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8666 .is_ge()
8667 {
8668 break;
8669 }
8670 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8671 if let Some(current_row) = &end_row {
8672 if end.row == current_row.row {
8673 continue;
8674 }
8675 }
8676 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8677 if start_row.is_none() {
8678 assert_eq!(end_row, None);
8679 start_row = Some(start);
8680 end_row = Some(end);
8681 continue;
8682 }
8683 if let Some(current_end) = end_row.as_mut() {
8684 if start.row > current_end.row + 1 {
8685 push_region(start_row, end_row);
8686 start_row = Some(start);
8687 end_row = Some(end);
8688 } else {
8689 // Merge two hunks.
8690 *current_end = end;
8691 }
8692 } else {
8693 unreachable!();
8694 }
8695 }
8696 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8697 push_region(start_row, end_row);
8698 results
8699 }
8700
8701 /// Get the text ranges corresponding to the redaction query
8702 pub fn redacted_ranges(
8703 &self,
8704 search_range: Range<Anchor>,
8705 display_snapshot: &DisplaySnapshot,
8706 cx: &mut ViewContext<Self>,
8707 ) -> Vec<Range<DisplayPoint>> {
8708 display_snapshot
8709 .buffer_snapshot
8710 .redacted_ranges(search_range, |file| {
8711 if let Some(file) = file {
8712 file.is_private()
8713 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8714 .redact_private_values
8715 } else {
8716 false
8717 }
8718 })
8719 .map(|range| {
8720 range.start.to_display_point(display_snapshot)
8721 ..range.end.to_display_point(display_snapshot)
8722 })
8723 .collect()
8724 }
8725
8726 pub fn highlight_text<T: 'static>(
8727 &mut self,
8728 ranges: Vec<Range<Anchor>>,
8729 style: HighlightStyle,
8730 cx: &mut ViewContext<Self>,
8731 ) {
8732 self.display_map.update(cx, |map, _| {
8733 map.highlight_text(TypeId::of::<T>(), ranges, style)
8734 });
8735 cx.notify();
8736 }
8737
8738 pub(crate) fn highlight_inlays<T: 'static>(
8739 &mut self,
8740 highlights: Vec<InlayHighlight>,
8741 style: HighlightStyle,
8742 cx: &mut ViewContext<Self>,
8743 ) {
8744 self.display_map.update(cx, |map, _| {
8745 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8746 });
8747 cx.notify();
8748 }
8749
8750 pub fn text_highlights<'a, T: 'static>(
8751 &'a self,
8752 cx: &'a AppContext,
8753 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8754 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8755 }
8756
8757 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8758 let cleared = self
8759 .display_map
8760 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8761 if cleared {
8762 cx.notify();
8763 }
8764 }
8765
8766 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8767 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8768 && self.focus_handle.is_focused(cx)
8769 }
8770
8771 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8772 cx.notify();
8773 }
8774
8775 fn on_buffer_event(
8776 &mut self,
8777 multibuffer: Model<MultiBuffer>,
8778 event: &multi_buffer::Event,
8779 cx: &mut ViewContext<Self>,
8780 ) {
8781 match event {
8782 multi_buffer::Event::Edited {
8783 singleton_buffer_edited,
8784 } => {
8785 self.refresh_active_diagnostics(cx);
8786 self.refresh_code_actions(cx);
8787 if self.has_active_copilot_suggestion(cx) {
8788 self.update_visible_copilot_suggestion(cx);
8789 }
8790 cx.emit(EditorEvent::BufferEdited);
8791 cx.emit(SearchEvent::MatchesInvalidated);
8792
8793 if *singleton_buffer_edited {
8794 if let Some(project) = &self.project {
8795 let project = project.read(cx);
8796 let languages_affected = multibuffer
8797 .read(cx)
8798 .all_buffers()
8799 .into_iter()
8800 .filter_map(|buffer| {
8801 let buffer = buffer.read(cx);
8802 let language = buffer.language()?;
8803 if project.is_local()
8804 && project.language_servers_for_buffer(buffer, cx).count() == 0
8805 {
8806 None
8807 } else {
8808 Some(language)
8809 }
8810 })
8811 .cloned()
8812 .collect::<HashSet<_>>();
8813 if !languages_affected.is_empty() {
8814 self.refresh_inlay_hints(
8815 InlayHintRefreshReason::BufferEdited(languages_affected),
8816 cx,
8817 );
8818 }
8819 }
8820 }
8821
8822 let Some(project) = &self.project else { return };
8823 let telemetry = project.read(cx).client().telemetry().clone();
8824 telemetry.log_edit_event("editor");
8825 }
8826 multi_buffer::Event::ExcerptsAdded {
8827 buffer,
8828 predecessor,
8829 excerpts,
8830 } => {
8831 cx.emit(EditorEvent::ExcerptsAdded {
8832 buffer: buffer.clone(),
8833 predecessor: *predecessor,
8834 excerpts: excerpts.clone(),
8835 });
8836 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8837 }
8838 multi_buffer::Event::ExcerptsRemoved { ids } => {
8839 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8840 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8841 }
8842 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8843 multi_buffer::Event::LanguageChanged => {
8844 cx.emit(EditorEvent::Reparsed);
8845 cx.notify();
8846 }
8847 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8848 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8849 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8850 cx.emit(EditorEvent::TitleChanged)
8851 }
8852 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8853 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8854 multi_buffer::Event::DiagnosticsUpdated => {
8855 self.refresh_active_diagnostics(cx);
8856 }
8857 _ => {}
8858 };
8859 }
8860
8861 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8862 cx.notify();
8863 }
8864
8865 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8866 self.refresh_copilot_suggestions(true, cx);
8867 self.refresh_inlay_hints(
8868 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8869 self.selections.newest_anchor().head(),
8870 &self.buffer.read(cx).snapshot(cx),
8871 cx,
8872 )),
8873 cx,
8874 );
8875 let editor_settings = EditorSettings::get_global(cx);
8876 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
8877 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
8878 cx.notify();
8879 }
8880
8881 pub fn set_searchable(&mut self, searchable: bool) {
8882 self.searchable = searchable;
8883 }
8884
8885 pub fn searchable(&self) -> bool {
8886 self.searchable
8887 }
8888
8889 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8890 let buffer = self.buffer.read(cx);
8891 if buffer.is_singleton() {
8892 cx.propagate();
8893 return;
8894 }
8895
8896 let Some(workspace) = self.workspace() else {
8897 cx.propagate();
8898 return;
8899 };
8900
8901 let mut new_selections_by_buffer = HashMap::default();
8902 for selection in self.selections.all::<usize>(cx) {
8903 for (buffer, mut range, _) in
8904 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8905 {
8906 if selection.reversed {
8907 mem::swap(&mut range.start, &mut range.end);
8908 }
8909 new_selections_by_buffer
8910 .entry(buffer)
8911 .or_insert(Vec::new())
8912 .push(range)
8913 }
8914 }
8915
8916 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8917
8918 // We defer the pane interaction because we ourselves are a workspace item
8919 // and activating a new item causes the pane to call a method on us reentrantly,
8920 // which panics if we're on the stack.
8921 cx.window_context().defer(move |cx| {
8922 workspace.update(cx, |workspace, cx| {
8923 let pane = workspace.active_pane().clone();
8924 pane.update(cx, |pane, _| pane.disable_history());
8925
8926 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8927 let editor = workspace.open_project_item::<Self>(buffer, cx);
8928 editor.update(cx, |editor, cx| {
8929 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8930 s.select_ranges(ranges);
8931 });
8932 });
8933 }
8934
8935 pane.update(cx, |pane, _| pane.enable_history());
8936 })
8937 });
8938 }
8939
8940 fn jump(
8941 &mut self,
8942 path: ProjectPath,
8943 position: Point,
8944 anchor: language::Anchor,
8945 cx: &mut ViewContext<Self>,
8946 ) {
8947 let workspace = self.workspace();
8948 cx.spawn(|_, mut cx| async move {
8949 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
8950 let editor = workspace.update(&mut cx, |workspace, cx| {
8951 workspace.open_path(path, None, true, cx)
8952 })?;
8953 let editor = editor
8954 .await?
8955 .downcast::<Editor>()
8956 .ok_or_else(|| anyhow!("opened item was not an editor"))?
8957 .downgrade();
8958 editor.update(&mut cx, |editor, cx| {
8959 let buffer = editor
8960 .buffer()
8961 .read(cx)
8962 .as_singleton()
8963 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
8964 let buffer = buffer.read(cx);
8965 let cursor = if buffer.can_resolve(&anchor) {
8966 language::ToPoint::to_point(&anchor, buffer)
8967 } else {
8968 buffer.clip_point(position, Bias::Left)
8969 };
8970
8971 let nav_history = editor.nav_history.take();
8972 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
8973 s.select_ranges([cursor..cursor]);
8974 });
8975 editor.nav_history = nav_history;
8976
8977 anyhow::Ok(())
8978 })??;
8979
8980 anyhow::Ok(())
8981 })
8982 .detach_and_log_err(cx);
8983 }
8984
8985 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
8986 let snapshot = self.buffer.read(cx).read(cx);
8987 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
8988 Some(
8989 ranges
8990 .iter()
8991 .map(move |range| {
8992 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
8993 })
8994 .collect(),
8995 )
8996 }
8997
8998 fn selection_replacement_ranges(
8999 &self,
9000 range: Range<OffsetUtf16>,
9001 cx: &AppContext,
9002 ) -> Vec<Range<OffsetUtf16>> {
9003 let selections = self.selections.all::<OffsetUtf16>(cx);
9004 let newest_selection = selections
9005 .iter()
9006 .max_by_key(|selection| selection.id)
9007 .unwrap();
9008 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9009 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9010 let snapshot = self.buffer.read(cx).read(cx);
9011 selections
9012 .into_iter()
9013 .map(|mut selection| {
9014 selection.start.0 =
9015 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9016 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9017 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9018 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9019 })
9020 .collect()
9021 }
9022
9023 fn report_copilot_event(
9024 &self,
9025 suggestion_id: Option<String>,
9026 suggestion_accepted: bool,
9027 cx: &AppContext,
9028 ) {
9029 let Some(project) = &self.project else { return };
9030
9031 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9032 let file_extension = self
9033 .buffer
9034 .read(cx)
9035 .as_singleton()
9036 .and_then(|b| b.read(cx).file())
9037 .and_then(|file| Path::new(file.file_name(cx)).extension())
9038 .and_then(|e| e.to_str())
9039 .map(|a| a.to_string());
9040
9041 let telemetry = project.read(cx).client().telemetry().clone();
9042
9043 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9044 }
9045
9046 #[cfg(any(test, feature = "test-support"))]
9047 fn report_editor_event(
9048 &self,
9049 _operation: &'static str,
9050 _file_extension: Option<String>,
9051 _cx: &AppContext,
9052 ) {
9053 }
9054
9055 #[cfg(not(any(test, feature = "test-support")))]
9056 fn report_editor_event(
9057 &self,
9058 operation: &'static str,
9059 file_extension: Option<String>,
9060 cx: &AppContext,
9061 ) {
9062 let Some(project) = &self.project else { return };
9063
9064 // If None, we are in a file without an extension
9065 let file = self
9066 .buffer
9067 .read(cx)
9068 .as_singleton()
9069 .and_then(|b| b.read(cx).file());
9070 let file_extension = file_extension.or(file
9071 .as_ref()
9072 .and_then(|file| Path::new(file.file_name(cx)).extension())
9073 .and_then(|e| e.to_str())
9074 .map(|a| a.to_string()));
9075
9076 let vim_mode = cx
9077 .global::<SettingsStore>()
9078 .raw_user_settings()
9079 .get("vim_mode")
9080 == Some(&serde_json::Value::Bool(true));
9081 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9082 let copilot_enabled_for_language = self
9083 .buffer
9084 .read(cx)
9085 .settings_at(0, cx)
9086 .show_copilot_suggestions;
9087
9088 let telemetry = project.read(cx).client().telemetry().clone();
9089 telemetry.report_editor_event(
9090 file_extension,
9091 vim_mode,
9092 operation,
9093 copilot_enabled,
9094 copilot_enabled_for_language,
9095 )
9096 }
9097
9098 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9099 /// with each line being an array of {text, highlight} objects.
9100 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9101 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9102 return;
9103 };
9104
9105 #[derive(Serialize)]
9106 struct Chunk<'a> {
9107 text: String,
9108 highlight: Option<&'a str>,
9109 }
9110
9111 let snapshot = buffer.read(cx).snapshot();
9112 let range = self
9113 .selected_text_range(cx)
9114 .and_then(|selected_range| {
9115 if selected_range.is_empty() {
9116 None
9117 } else {
9118 Some(selected_range)
9119 }
9120 })
9121 .unwrap_or_else(|| 0..snapshot.len());
9122
9123 let chunks = snapshot.chunks(range, true);
9124 let mut lines = Vec::new();
9125 let mut line: VecDeque<Chunk> = VecDeque::new();
9126
9127 let Some(style) = self.style.as_ref() else {
9128 return;
9129 };
9130
9131 for chunk in chunks {
9132 let highlight = chunk
9133 .syntax_highlight_id
9134 .and_then(|id| id.name(&style.syntax));
9135 let mut chunk_lines = chunk.text.split("\n").peekable();
9136 while let Some(text) = chunk_lines.next() {
9137 let mut merged_with_last_token = false;
9138 if let Some(last_token) = line.back_mut() {
9139 if last_token.highlight == highlight {
9140 last_token.text.push_str(text);
9141 merged_with_last_token = true;
9142 }
9143 }
9144
9145 if !merged_with_last_token {
9146 line.push_back(Chunk {
9147 text: text.into(),
9148 highlight,
9149 });
9150 }
9151
9152 if chunk_lines.peek().is_some() {
9153 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9154 line.pop_front();
9155 }
9156 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9157 line.pop_back();
9158 }
9159
9160 lines.push(mem::take(&mut line));
9161 }
9162 }
9163 }
9164
9165 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9166 return;
9167 };
9168 cx.write_to_clipboard(ClipboardItem::new(lines));
9169 }
9170
9171 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9172 &self.inlay_hint_cache
9173 }
9174
9175 pub fn replay_insert_event(
9176 &mut self,
9177 text: &str,
9178 relative_utf16_range: Option<Range<isize>>,
9179 cx: &mut ViewContext<Self>,
9180 ) {
9181 if !self.input_enabled {
9182 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9183 return;
9184 }
9185 if let Some(relative_utf16_range) = relative_utf16_range {
9186 let selections = self.selections.all::<OffsetUtf16>(cx);
9187 self.change_selections(None, cx, |s| {
9188 let new_ranges = selections.into_iter().map(|range| {
9189 let start = OffsetUtf16(
9190 range
9191 .head()
9192 .0
9193 .saturating_add_signed(relative_utf16_range.start),
9194 );
9195 let end = OffsetUtf16(
9196 range
9197 .head()
9198 .0
9199 .saturating_add_signed(relative_utf16_range.end),
9200 );
9201 start..end
9202 });
9203 s.select_ranges(new_ranges);
9204 });
9205 }
9206
9207 self.handle_input(text, cx);
9208 }
9209
9210 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9211 let Some(project) = self.project.as_ref() else {
9212 return false;
9213 };
9214 let project = project.read(cx);
9215
9216 let mut supports = false;
9217 self.buffer().read(cx).for_each_buffer(|buffer| {
9218 if !supports {
9219 supports = project
9220 .language_servers_for_buffer(buffer.read(cx), cx)
9221 .any(
9222 |(_, server)| match server.capabilities().inlay_hint_provider {
9223 Some(lsp::OneOf::Left(enabled)) => enabled,
9224 Some(lsp::OneOf::Right(_)) => true,
9225 None => false,
9226 },
9227 )
9228 }
9229 });
9230 supports
9231 }
9232
9233 pub fn focus(&self, cx: &mut WindowContext) {
9234 cx.focus(&self.focus_handle)
9235 }
9236
9237 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9238 self.focus_handle.is_focused(cx)
9239 }
9240
9241 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9242 cx.emit(EditorEvent::Focused);
9243
9244 if let Some(rename) = self.pending_rename.as_ref() {
9245 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9246 cx.focus(&rename_editor_focus_handle);
9247 } else {
9248 self.blink_manager.update(cx, BlinkManager::enable);
9249 self.show_cursor_names(cx);
9250 self.buffer.update(cx, |buffer, cx| {
9251 buffer.finalize_last_transaction(cx);
9252 if self.leader_peer_id.is_none() {
9253 buffer.set_active_selections(
9254 &self.selections.disjoint_anchors(),
9255 self.selections.line_mode,
9256 self.cursor_shape,
9257 cx,
9258 );
9259 }
9260 });
9261 }
9262 }
9263
9264 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9265 self.blink_manager.update(cx, BlinkManager::disable);
9266 self.buffer
9267 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9268 self.hide_context_menu(cx);
9269 hide_hover(self, cx);
9270 cx.emit(EditorEvent::Blurred);
9271 cx.notify();
9272 }
9273
9274 pub fn register_action<A: Action>(
9275 &mut self,
9276 listener: impl Fn(&A, &mut WindowContext) + 'static,
9277 ) -> &mut Self {
9278 let listener = Arc::new(listener);
9279
9280 self.editor_actions.push(Box::new(move |cx| {
9281 let _view = cx.view().clone();
9282 let cx = cx.window_context();
9283 let listener = listener.clone();
9284 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9285 let action = action.downcast_ref().unwrap();
9286 if phase == DispatchPhase::Bubble {
9287 listener(action, cx)
9288 }
9289 })
9290 }));
9291 self
9292 }
9293}
9294
9295pub trait CollaborationHub {
9296 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9297 fn user_participant_indices<'a>(
9298 &self,
9299 cx: &'a AppContext,
9300 ) -> &'a HashMap<u64, ParticipantIndex>;
9301 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9302}
9303
9304impl CollaborationHub for Model<Project> {
9305 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9306 self.read(cx).collaborators()
9307 }
9308
9309 fn user_participant_indices<'a>(
9310 &self,
9311 cx: &'a AppContext,
9312 ) -> &'a HashMap<u64, ParticipantIndex> {
9313 self.read(cx).user_store().read(cx).participant_indices()
9314 }
9315
9316 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9317 let this = self.read(cx);
9318 let user_ids = this.collaborators().values().map(|c| c.user_id);
9319 this.user_store().read_with(cx, |user_store, cx| {
9320 user_store.participant_names(user_ids, cx)
9321 })
9322 }
9323}
9324
9325pub trait CompletionProvider {
9326 fn completions(
9327 &self,
9328 buffer: &Model<Buffer>,
9329 buffer_position: text::Anchor,
9330 cx: &mut ViewContext<Editor>,
9331 ) -> Task<Result<Vec<Completion>>>;
9332
9333 fn resolve_completions(
9334 &self,
9335 completion_indices: Vec<usize>,
9336 completions: Arc<RwLock<Box<[Completion]>>>,
9337 cx: &mut ViewContext<Editor>,
9338 ) -> Task<Result<bool>>;
9339
9340 fn apply_additional_edits_for_completion(
9341 &self,
9342 buffer: Model<Buffer>,
9343 completion: Completion,
9344 push_to_history: bool,
9345 cx: &mut ViewContext<Editor>,
9346 ) -> Task<Result<Option<language::Transaction>>>;
9347}
9348
9349impl CompletionProvider for Model<Project> {
9350 fn completions(
9351 &self,
9352 buffer: &Model<Buffer>,
9353 buffer_position: text::Anchor,
9354 cx: &mut ViewContext<Editor>,
9355 ) -> Task<Result<Vec<Completion>>> {
9356 self.update(cx, |project, cx| {
9357 project.completions(&buffer, buffer_position, cx)
9358 })
9359 }
9360
9361 fn resolve_completions(
9362 &self,
9363 completion_indices: Vec<usize>,
9364 completions: Arc<RwLock<Box<[Completion]>>>,
9365 cx: &mut ViewContext<Editor>,
9366 ) -> Task<Result<bool>> {
9367 self.update(cx, |project, cx| {
9368 project.resolve_completions(completion_indices, completions, cx)
9369 })
9370 }
9371
9372 fn apply_additional_edits_for_completion(
9373 &self,
9374 buffer: Model<Buffer>,
9375 completion: Completion,
9376 push_to_history: bool,
9377 cx: &mut ViewContext<Editor>,
9378 ) -> Task<Result<Option<language::Transaction>>> {
9379 self.update(cx, |project, cx| {
9380 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9381 })
9382 }
9383}
9384
9385fn inlay_hint_settings(
9386 location: Anchor,
9387 snapshot: &MultiBufferSnapshot,
9388 cx: &mut ViewContext<'_, Editor>,
9389) -> InlayHintSettings {
9390 let file = snapshot.file_at(location);
9391 let language = snapshot.language_at(location);
9392 let settings = all_language_settings(file, cx);
9393 settings
9394 .language(language.map(|l| l.name()).as_deref())
9395 .inlay_hints
9396}
9397
9398fn consume_contiguous_rows(
9399 contiguous_row_selections: &mut Vec<Selection<Point>>,
9400 selection: &Selection<Point>,
9401 display_map: &DisplaySnapshot,
9402 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9403) -> (u32, u32) {
9404 contiguous_row_selections.push(selection.clone());
9405 let start_row = selection.start.row;
9406 let mut end_row = ending_row(selection, display_map);
9407
9408 while let Some(next_selection) = selections.peek() {
9409 if next_selection.start.row <= end_row {
9410 end_row = ending_row(next_selection, display_map);
9411 contiguous_row_selections.push(selections.next().unwrap().clone());
9412 } else {
9413 break;
9414 }
9415 }
9416 (start_row, end_row)
9417}
9418
9419fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9420 if next_selection.end.column > 0 || next_selection.is_empty() {
9421 display_map.next_line_boundary(next_selection.end).0.row + 1
9422 } else {
9423 next_selection.end.row
9424 }
9425}
9426
9427impl EditorSnapshot {
9428 pub fn remote_selections_in_range<'a>(
9429 &'a self,
9430 range: &'a Range<Anchor>,
9431 collaboration_hub: &dyn CollaborationHub,
9432 cx: &'a AppContext,
9433 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9434 let participant_names = collaboration_hub.user_names(cx);
9435 let participant_indices = collaboration_hub.user_participant_indices(cx);
9436 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9437 let collaborators_by_replica_id = collaborators_by_peer_id
9438 .iter()
9439 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9440 .collect::<HashMap<_, _>>();
9441 self.buffer_snapshot
9442 .remote_selections_in_range(range)
9443 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9444 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9445 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9446 let user_name = participant_names.get(&collaborator.user_id).cloned();
9447 Some(RemoteSelection {
9448 replica_id,
9449 selection,
9450 cursor_shape,
9451 line_mode,
9452 participant_index,
9453 peer_id: collaborator.peer_id,
9454 user_name,
9455 })
9456 })
9457 }
9458
9459 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9460 self.display_snapshot.buffer_snapshot.language_at(position)
9461 }
9462
9463 pub fn is_focused(&self) -> bool {
9464 self.is_focused
9465 }
9466
9467 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9468 self.placeholder_text.as_ref()
9469 }
9470
9471 pub fn scroll_position(&self) -> gpui::Point<f32> {
9472 self.scroll_anchor.scroll_position(&self.display_snapshot)
9473 }
9474
9475 pub fn gutter_dimensions(
9476 &self,
9477 font_id: FontId,
9478 font_size: Pixels,
9479 em_width: Pixels,
9480 max_line_number_width: Pixels,
9481 cx: &AppContext,
9482 ) -> GutterDimensions {
9483 if self.show_gutter {
9484 let descent = cx.text_system().descent(font_id, font_size);
9485 let gutter_padding_factor = 4.0;
9486 let gutter_padding = (em_width * gutter_padding_factor).round();
9487 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9488 let min_width_for_number_on_gutter = em_width * 4.0;
9489 let gutter_width =
9490 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9491 let gutter_margin = -descent;
9492
9493 GutterDimensions {
9494 padding: gutter_padding,
9495 width: gutter_width,
9496 margin: gutter_margin,
9497 }
9498 } else {
9499 GutterDimensions::default()
9500 }
9501 }
9502}
9503
9504impl Deref for EditorSnapshot {
9505 type Target = DisplaySnapshot;
9506
9507 fn deref(&self) -> &Self::Target {
9508 &self.display_snapshot
9509 }
9510}
9511
9512#[derive(Clone, Debug, PartialEq, Eq)]
9513pub enum EditorEvent {
9514 InputIgnored {
9515 text: Arc<str>,
9516 },
9517 InputHandled {
9518 utf16_range_to_replace: Option<Range<isize>>,
9519 text: Arc<str>,
9520 },
9521 ExcerptsAdded {
9522 buffer: Model<Buffer>,
9523 predecessor: ExcerptId,
9524 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9525 },
9526 ExcerptsRemoved {
9527 ids: Vec<ExcerptId>,
9528 },
9529 BufferEdited,
9530 Edited,
9531 Reparsed,
9532 Focused,
9533 Blurred,
9534 DirtyChanged,
9535 Saved,
9536 TitleChanged,
9537 DiffBaseChanged,
9538 SelectionsChanged {
9539 local: bool,
9540 },
9541 ScrollPositionChanged {
9542 local: bool,
9543 autoscroll: bool,
9544 },
9545 Closed,
9546}
9547
9548impl EventEmitter<EditorEvent> for Editor {}
9549
9550impl FocusableView for Editor {
9551 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9552 self.focus_handle.clone()
9553 }
9554}
9555
9556impl Render for Editor {
9557 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9558 let settings = ThemeSettings::get_global(cx);
9559 let text_style = match self.mode {
9560 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9561 color: cx.theme().colors().editor_foreground,
9562 font_family: settings.ui_font.family.clone(),
9563 font_features: settings.ui_font.features,
9564 font_size: rems(0.875).into(),
9565 font_weight: FontWeight::NORMAL,
9566 font_style: FontStyle::Normal,
9567 line_height: relative(settings.buffer_line_height.value()),
9568 background_color: None,
9569 underline: None,
9570 strikethrough: None,
9571 white_space: WhiteSpace::Normal,
9572 },
9573
9574 EditorMode::Full => TextStyle {
9575 color: cx.theme().colors().editor_foreground,
9576 font_family: settings.buffer_font.family.clone(),
9577 font_features: settings.buffer_font.features,
9578 font_size: settings.buffer_font_size(cx).into(),
9579 font_weight: FontWeight::NORMAL,
9580 font_style: FontStyle::Normal,
9581 line_height: relative(settings.buffer_line_height.value()),
9582 background_color: None,
9583 underline: None,
9584 strikethrough: None,
9585 white_space: WhiteSpace::Normal,
9586 },
9587 };
9588
9589 let background = match self.mode {
9590 EditorMode::SingleLine => cx.theme().system().transparent,
9591 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9592 EditorMode::Full => cx.theme().colors().editor_background,
9593 };
9594
9595 EditorElement::new(
9596 cx.view(),
9597 EditorStyle {
9598 background,
9599 local_player: cx.theme().players().local(),
9600 text: text_style,
9601 scrollbar_width: px(12.),
9602 syntax: cx.theme().syntax().clone(),
9603 status: cx.theme().status().clone(),
9604 inlays_style: HighlightStyle {
9605 color: Some(cx.theme().status().hint),
9606 font_weight: Some(FontWeight::BOLD),
9607 ..HighlightStyle::default()
9608 },
9609 suggestions_style: HighlightStyle {
9610 color: Some(cx.theme().status().predictive),
9611 ..HighlightStyle::default()
9612 },
9613 },
9614 )
9615 }
9616}
9617
9618impl ViewInputHandler for Editor {
9619 fn text_for_range(
9620 &mut self,
9621 range_utf16: Range<usize>,
9622 cx: &mut ViewContext<Self>,
9623 ) -> Option<String> {
9624 Some(
9625 self.buffer
9626 .read(cx)
9627 .read(cx)
9628 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9629 .collect(),
9630 )
9631 }
9632
9633 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9634 // Prevent the IME menu from appearing when holding down an alphabetic key
9635 // while input is disabled.
9636 if !self.input_enabled {
9637 return None;
9638 }
9639
9640 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9641 Some(range.start.0..range.end.0)
9642 }
9643
9644 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9645 let snapshot = self.buffer.read(cx).read(cx);
9646 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9647 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9648 }
9649
9650 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9651 self.clear_highlights::<InputComposition>(cx);
9652 self.ime_transaction.take();
9653 }
9654
9655 fn replace_text_in_range(
9656 &mut self,
9657 range_utf16: Option<Range<usize>>,
9658 text: &str,
9659 cx: &mut ViewContext<Self>,
9660 ) {
9661 if !self.input_enabled {
9662 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9663 return;
9664 }
9665
9666 self.transact(cx, |this, cx| {
9667 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9668 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9669 Some(this.selection_replacement_ranges(range_utf16, cx))
9670 } else {
9671 this.marked_text_ranges(cx)
9672 };
9673
9674 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9675 let newest_selection_id = this.selections.newest_anchor().id;
9676 this.selections
9677 .all::<OffsetUtf16>(cx)
9678 .iter()
9679 .zip(ranges_to_replace.iter())
9680 .find_map(|(selection, range)| {
9681 if selection.id == newest_selection_id {
9682 Some(
9683 (range.start.0 as isize - selection.head().0 as isize)
9684 ..(range.end.0 as isize - selection.head().0 as isize),
9685 )
9686 } else {
9687 None
9688 }
9689 })
9690 });
9691
9692 cx.emit(EditorEvent::InputHandled {
9693 utf16_range_to_replace: range_to_replace,
9694 text: text.into(),
9695 });
9696
9697 if let Some(new_selected_ranges) = new_selected_ranges {
9698 this.change_selections(None, cx, |selections| {
9699 selections.select_ranges(new_selected_ranges)
9700 });
9701 }
9702
9703 this.handle_input(text, cx);
9704 });
9705
9706 if let Some(transaction) = self.ime_transaction {
9707 self.buffer.update(cx, |buffer, cx| {
9708 buffer.group_until_transaction(transaction, cx);
9709 });
9710 }
9711
9712 self.unmark_text(cx);
9713 }
9714
9715 fn replace_and_mark_text_in_range(
9716 &mut self,
9717 range_utf16: Option<Range<usize>>,
9718 text: &str,
9719 new_selected_range_utf16: Option<Range<usize>>,
9720 cx: &mut ViewContext<Self>,
9721 ) {
9722 if !self.input_enabled {
9723 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9724 return;
9725 }
9726
9727 let transaction = self.transact(cx, |this, cx| {
9728 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9729 let snapshot = this.buffer.read(cx).read(cx);
9730 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9731 for marked_range in &mut marked_ranges {
9732 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9733 marked_range.start.0 += relative_range_utf16.start;
9734 marked_range.start =
9735 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9736 marked_range.end =
9737 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9738 }
9739 }
9740 Some(marked_ranges)
9741 } else if let Some(range_utf16) = range_utf16 {
9742 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9743 Some(this.selection_replacement_ranges(range_utf16, cx))
9744 } else {
9745 None
9746 };
9747
9748 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9749 let newest_selection_id = this.selections.newest_anchor().id;
9750 this.selections
9751 .all::<OffsetUtf16>(cx)
9752 .iter()
9753 .zip(ranges_to_replace.iter())
9754 .find_map(|(selection, range)| {
9755 if selection.id == newest_selection_id {
9756 Some(
9757 (range.start.0 as isize - selection.head().0 as isize)
9758 ..(range.end.0 as isize - selection.head().0 as isize),
9759 )
9760 } else {
9761 None
9762 }
9763 })
9764 });
9765
9766 cx.emit(EditorEvent::InputHandled {
9767 utf16_range_to_replace: range_to_replace,
9768 text: text.into(),
9769 });
9770
9771 if let Some(ranges) = ranges_to_replace {
9772 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9773 }
9774
9775 let marked_ranges = {
9776 let snapshot = this.buffer.read(cx).read(cx);
9777 this.selections
9778 .disjoint_anchors()
9779 .iter()
9780 .map(|selection| {
9781 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9782 })
9783 .collect::<Vec<_>>()
9784 };
9785
9786 if text.is_empty() {
9787 this.unmark_text(cx);
9788 } else {
9789 this.highlight_text::<InputComposition>(
9790 marked_ranges.clone(),
9791 HighlightStyle {
9792 underline: Some(UnderlineStyle {
9793 thickness: px(1.),
9794 color: None,
9795 wavy: false,
9796 }),
9797 ..Default::default()
9798 },
9799 cx,
9800 );
9801 }
9802
9803 this.handle_input(text, cx);
9804
9805 if let Some(new_selected_range) = new_selected_range_utf16 {
9806 let snapshot = this.buffer.read(cx).read(cx);
9807 let new_selected_ranges = marked_ranges
9808 .into_iter()
9809 .map(|marked_range| {
9810 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9811 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9812 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9813 snapshot.clip_offset_utf16(new_start, Bias::Left)
9814 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9815 })
9816 .collect::<Vec<_>>();
9817
9818 drop(snapshot);
9819 this.change_selections(None, cx, |selections| {
9820 selections.select_ranges(new_selected_ranges)
9821 });
9822 }
9823 });
9824
9825 self.ime_transaction = self.ime_transaction.or(transaction);
9826 if let Some(transaction) = self.ime_transaction {
9827 self.buffer.update(cx, |buffer, cx| {
9828 buffer.group_until_transaction(transaction, cx);
9829 });
9830 }
9831
9832 if self.text_highlights::<InputComposition>(cx).is_none() {
9833 self.ime_transaction.take();
9834 }
9835 }
9836
9837 fn bounds_for_range(
9838 &mut self,
9839 range_utf16: Range<usize>,
9840 element_bounds: gpui::Bounds<Pixels>,
9841 cx: &mut ViewContext<Self>,
9842 ) -> Option<gpui::Bounds<Pixels>> {
9843 let text_layout_details = self.text_layout_details(cx);
9844 let style = &text_layout_details.editor_style;
9845 let font_id = cx.text_system().resolve_font(&style.text.font());
9846 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9847 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9848 let em_width = cx
9849 .text_system()
9850 .typographic_bounds(font_id, font_size, 'm')
9851 .unwrap()
9852 .size
9853 .width;
9854
9855 let snapshot = self.snapshot(cx);
9856 let scroll_position = snapshot.scroll_position();
9857 let scroll_left = scroll_position.x * em_width;
9858
9859 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9860 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9861 + self.gutter_width;
9862 let y = line_height * (start.row() as f32 - scroll_position.y);
9863
9864 Some(Bounds {
9865 origin: element_bounds.origin + point(x, y),
9866 size: size(em_width, line_height),
9867 })
9868 }
9869}
9870
9871trait SelectionExt {
9872 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9873 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9874 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9875 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9876 -> Range<u32>;
9877}
9878
9879impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9880 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9881 let start = self.start.to_point(buffer);
9882 let end = self.end.to_point(buffer);
9883 if self.reversed {
9884 end..start
9885 } else {
9886 start..end
9887 }
9888 }
9889
9890 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9891 let start = self.start.to_offset(buffer);
9892 let end = self.end.to_offset(buffer);
9893 if self.reversed {
9894 end..start
9895 } else {
9896 start..end
9897 }
9898 }
9899
9900 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9901 let start = self
9902 .start
9903 .to_point(&map.buffer_snapshot)
9904 .to_display_point(map);
9905 let end = self
9906 .end
9907 .to_point(&map.buffer_snapshot)
9908 .to_display_point(map);
9909 if self.reversed {
9910 end..start
9911 } else {
9912 start..end
9913 }
9914 }
9915
9916 fn spanned_rows(
9917 &self,
9918 include_end_if_at_line_start: bool,
9919 map: &DisplaySnapshot,
9920 ) -> Range<u32> {
9921 let start = self.start.to_point(&map.buffer_snapshot);
9922 let mut end = self.end.to_point(&map.buffer_snapshot);
9923 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9924 end.row -= 1;
9925 }
9926
9927 let buffer_start = map.prev_line_boundary(start).0;
9928 let buffer_end = map.next_line_boundary(end).0;
9929 buffer_start.row..buffer_end.row + 1
9930 }
9931}
9932
9933impl<T: InvalidationRegion> InvalidationStack<T> {
9934 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
9935 where
9936 S: Clone + ToOffset,
9937 {
9938 while let Some(region) = self.last() {
9939 let all_selections_inside_invalidation_ranges =
9940 if selections.len() == region.ranges().len() {
9941 selections
9942 .iter()
9943 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
9944 .all(|(selection, invalidation_range)| {
9945 let head = selection.head().to_offset(buffer);
9946 invalidation_range.start <= head && invalidation_range.end >= head
9947 })
9948 } else {
9949 false
9950 };
9951
9952 if all_selections_inside_invalidation_ranges {
9953 break;
9954 } else {
9955 self.pop();
9956 }
9957 }
9958 }
9959}
9960
9961impl<T> Default for InvalidationStack<T> {
9962 fn default() -> Self {
9963 Self(Default::default())
9964 }
9965}
9966
9967impl<T> Deref for InvalidationStack<T> {
9968 type Target = Vec<T>;
9969
9970 fn deref(&self) -> &Self::Target {
9971 &self.0
9972 }
9973}
9974
9975impl<T> DerefMut for InvalidationStack<T> {
9976 fn deref_mut(&mut self) -> &mut Self::Target {
9977 &mut self.0
9978 }
9979}
9980
9981impl InvalidationRegion for SnippetState {
9982 fn ranges(&self) -> &[Range<Anchor>] {
9983 &self.ranges[self.active_index]
9984 }
9985}
9986
9987pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
9988 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
9989
9990 Arc::new(move |cx: &mut BlockContext| {
9991 let group_id: SharedString = cx.block_id.to_string().into();
9992
9993 let mut text_style = cx.text_style().clone();
9994 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
9995
9996 h_flex()
9997 .id(cx.block_id)
9998 .group(group_id.clone())
9999 .relative()
10000 .size_full()
10001 .pl(cx.gutter_width)
10002 .w(cx.max_width + cx.gutter_width)
10003 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
10004 .child(div().flex().flex_shrink_0().child(
10005 StyledText::new(text_without_backticks.clone()).with_highlights(
10006 &text_style,
10007 code_ranges.iter().map(|range| {
10008 (
10009 range.clone(),
10010 HighlightStyle {
10011 font_weight: Some(FontWeight::BOLD),
10012 ..Default::default()
10013 },
10014 )
10015 }),
10016 ),
10017 ))
10018 .child(
10019 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10020 .icon_color(Color::Muted)
10021 .size(ButtonSize::Compact)
10022 .style(ButtonStyle::Transparent)
10023 .visible_on_hover(group_id)
10024 .on_click({
10025 let message = diagnostic.message.clone();
10026 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10027 })
10028 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10029 )
10030 .into_any_element()
10031 })
10032}
10033
10034pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10035 let mut text_without_backticks = String::new();
10036 let mut code_ranges = Vec::new();
10037
10038 if let Some(source) = &diagnostic.source {
10039 text_without_backticks.push_str(&source);
10040 code_ranges.push(0..source.len());
10041 text_without_backticks.push_str(": ");
10042 }
10043
10044 let mut prev_offset = 0;
10045 let mut in_code_block = false;
10046 for (ix, _) in diagnostic
10047 .message
10048 .match_indices('`')
10049 .chain([(diagnostic.message.len(), "")])
10050 {
10051 let prev_len = text_without_backticks.len();
10052 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10053 prev_offset = ix + 1;
10054 if in_code_block {
10055 code_ranges.push(prev_len..text_without_backticks.len());
10056 in_code_block = false;
10057 } else {
10058 in_code_block = true;
10059 }
10060 }
10061
10062 (text_without_backticks.into(), code_ranges)
10063}
10064
10065fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10066 match (severity, valid) {
10067 (DiagnosticSeverity::ERROR, true) => colors.error,
10068 (DiagnosticSeverity::ERROR, false) => colors.error,
10069 (DiagnosticSeverity::WARNING, true) => colors.warning,
10070 (DiagnosticSeverity::WARNING, false) => colors.warning,
10071 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10072 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10073 (DiagnosticSeverity::HINT, true) => colors.info,
10074 (DiagnosticSeverity::HINT, false) => colors.info,
10075 _ => colors.ignored,
10076 }
10077}
10078
10079pub fn styled_runs_for_code_label<'a>(
10080 label: &'a CodeLabel,
10081 syntax_theme: &'a theme::SyntaxTheme,
10082) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10083 let fade_out = HighlightStyle {
10084 fade_out: Some(0.35),
10085 ..Default::default()
10086 };
10087
10088 let mut prev_end = label.filter_range.end;
10089 label
10090 .runs
10091 .iter()
10092 .enumerate()
10093 .flat_map(move |(ix, (range, highlight_id))| {
10094 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10095 style
10096 } else {
10097 return Default::default();
10098 };
10099 let mut muted_style = style;
10100 muted_style.highlight(fade_out);
10101
10102 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10103 if range.start >= label.filter_range.end {
10104 if range.start > prev_end {
10105 runs.push((prev_end..range.start, fade_out));
10106 }
10107 runs.push((range.clone(), muted_style));
10108 } else if range.end <= label.filter_range.end {
10109 runs.push((range.clone(), style));
10110 } else {
10111 runs.push((range.start..label.filter_range.end, style));
10112 runs.push((label.filter_range.end..range.end, muted_style));
10113 }
10114 prev_end = cmp::max(prev_end, range.end);
10115
10116 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10117 runs.push((prev_end..label.text.len(), fade_out));
10118 }
10119
10120 runs
10121 })
10122}
10123
10124pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10125 let mut index = 0;
10126 let mut codepoints = text.char_indices().peekable();
10127
10128 std::iter::from_fn(move || {
10129 let start_index = index;
10130 while let Some((new_index, codepoint)) = codepoints.next() {
10131 index = new_index + codepoint.len_utf8();
10132 let current_upper = codepoint.is_uppercase();
10133 let next_upper = codepoints
10134 .peek()
10135 .map(|(_, c)| c.is_uppercase())
10136 .unwrap_or(false);
10137
10138 if !current_upper && next_upper {
10139 return Some(&text[start_index..index]);
10140 }
10141 }
10142
10143 index = text.len();
10144 if start_index < text.len() {
10145 return Some(&text[start_index..]);
10146 }
10147 None
10148 })
10149 .flat_map(|word| word.split_inclusive('_'))
10150 .flat_map(|word| word.split_inclusive('-'))
10151}
10152
10153trait RangeToAnchorExt {
10154 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10155}
10156
10157impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10158 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10159 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10160 }
10161}