1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::{DiffHunk, DiffHunkStatus};
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{hash_map, 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::{
55 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
56};
57use futures::FutureExt;
58use fuzzy::{StringMatch, StringMatchCandidate};
59use git::diff_hunk_to_display;
60use gpui::{
61 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
62 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
63 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
64 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
65 ParentElement, Pixels, Render, SharedString, StrikethroughStyle, Styled, StyledText,
66 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
67 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
68};
69use highlight_matching_bracket::refresh_matching_bracket_highlights;
70use hover_popover::{hide_hover, HoverState};
71use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
72pub use items::MAX_TAB_TITLE_LEN;
73use itertools::Itertools;
74use language::{char_kind, CharKind};
75use language::{
76 language_settings::{self, all_language_settings, InlayHintSettings},
77 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
78 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
79 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
80};
81
82use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
83use lsp::{DiagnosticSeverity, LanguageServerId};
84use mouse_context_menu::MouseContextMenu;
85use movement::TextLayoutDetails;
86use multi_buffer::ToOffsetUtf16;
87pub use multi_buffer::{
88 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
89 ToPoint,
90};
91use ordered_float::OrderedFloat;
92use parking_lot::{Mutex, RwLock};
93use project::project_settings::{GitGutterSetting, ProjectSettings};
94use project::Item;
95use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
96use rand::prelude::*;
97use rpc::proto::*;
98use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
99use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
100use serde::{Deserialize, Serialize};
101use settings::{Settings, SettingsStore};
102use smallvec::SmallVec;
103use snippet::Snippet;
104use std::{
105 any::TypeId,
106 borrow::Cow,
107 cmp::{self, Ordering, Reverse},
108 mem,
109 num::NonZeroU32,
110 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
111 path::Path,
112 sync::Arc,
113 time::{Duration, Instant},
114};
115pub use sum_tree::Bias;
116use text::{BufferId, OffsetUtf16, Rope};
117use theme::{
118 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
119 ThemeColors, ThemeSettings,
120};
121use ui::{
122 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
123 Tooltip,
124};
125use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
126use workspace::Toast;
127use workspace::{searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace};
128
129use crate::hover_links::find_url;
130
131const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
132const MAX_LINE_LEN: usize = 1024;
133const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
134const MAX_SELECTION_HISTORY_LEN: usize = 1024;
135const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
136pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
137#[doc(hidden)]
138pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
139#[doc(hidden)]
140pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
141
142pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
143
144pub fn render_parsed_markdown(
145 element_id: impl Into<ElementId>,
146 parsed: &language::ParsedMarkdown,
147 editor_style: &EditorStyle,
148 workspace: Option<WeakView<Workspace>>,
149 cx: &mut ViewContext<Editor>,
150) -> InteractiveText {
151 let code_span_background_color = cx
152 .theme()
153 .colors()
154 .editor_document_highlight_read_background;
155
156 let highlights = gpui::combine_highlights(
157 parsed.highlights.iter().filter_map(|(range, highlight)| {
158 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
159 Some((range.clone(), highlight))
160 }),
161 parsed
162 .regions
163 .iter()
164 .zip(&parsed.region_ranges)
165 .filter_map(|(region, range)| {
166 if region.code {
167 Some((
168 range.clone(),
169 HighlightStyle {
170 background_color: Some(code_span_background_color),
171 ..Default::default()
172 },
173 ))
174 } else {
175 None
176 }
177 }),
178 );
179
180 let mut links = Vec::new();
181 let mut link_ranges = Vec::new();
182 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
183 if let Some(link) = region.link.clone() {
184 links.push(link);
185 link_ranges.push(range.clone());
186 }
187 }
188
189 InteractiveText::new(
190 element_id,
191 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
192 )
193 .on_click(link_ranges, move |clicked_range_ix, cx| {
194 match &links[clicked_range_ix] {
195 markdown::Link::Web { url } => cx.open_url(url),
196 markdown::Link::Path { path } => {
197 if let Some(workspace) = &workspace {
198 _ = workspace.update(cx, |workspace, cx| {
199 workspace.open_abs_path(path.clone(), false, cx).detach();
200 });
201 }
202 }
203 }
204 })
205}
206
207#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
208pub(crate) enum InlayId {
209 Suggestion(usize),
210 Hint(usize),
211}
212
213impl InlayId {
214 fn id(&self) -> usize {
215 match self {
216 Self::Suggestion(id) => *id,
217 Self::Hint(id) => *id,
218 }
219 }
220}
221
222enum DocumentHighlightRead {}
223enum DocumentHighlightWrite {}
224enum InputComposition {}
225
226#[derive(Copy, Clone, PartialEq, Eq)]
227pub enum Direction {
228 Prev,
229 Next,
230}
231
232pub fn init_settings(cx: &mut AppContext) {
233 EditorSettings::register(cx);
234}
235
236pub fn init(cx: &mut AppContext) {
237 init_settings(cx);
238
239 workspace::register_project_item::<Editor>(cx);
240 workspace::register_followable_item::<Editor>(cx);
241 workspace::register_deserializable_item::<Editor>(cx);
242 cx.observe_new_views(
243 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
244 workspace.register_action(Editor::new_file);
245 workspace.register_action(Editor::new_file_in_direction);
246 },
247 )
248 .detach();
249
250 cx.on_action(move |_: &workspace::NewFile, cx| {
251 let app_state = workspace::AppState::global(cx);
252 if let Some(app_state) = app_state.upgrade() {
253 workspace::open_new(app_state, cx, |workspace, cx| {
254 Editor::new_file(workspace, &Default::default(), cx)
255 })
256 .detach();
257 }
258 });
259 cx.on_action(move |_: &workspace::NewWindow, cx| {
260 let app_state = workspace::AppState::global(cx);
261 if let Some(app_state) = app_state.upgrade() {
262 workspace::open_new(app_state, cx, |workspace, cx| {
263 Editor::new_file(workspace, &Default::default(), cx)
264 })
265 .detach();
266 }
267 });
268}
269
270trait InvalidationRegion {
271 fn ranges(&self) -> &[Range<Anchor>];
272}
273
274#[derive(Clone, Debug, PartialEq)]
275pub enum SelectPhase {
276 Begin {
277 position: DisplayPoint,
278 add: bool,
279 click_count: usize,
280 },
281 BeginColumnar {
282 position: DisplayPoint,
283 goal_column: u32,
284 },
285 Extend {
286 position: DisplayPoint,
287 click_count: usize,
288 },
289 Update {
290 position: DisplayPoint,
291 goal_column: u32,
292 scroll_delta: gpui::Point<f32>,
293 },
294 End,
295}
296
297#[derive(Clone, Debug)]
298pub enum SelectMode {
299 Character,
300 Word(Range<Anchor>),
301 Line(Range<Anchor>),
302 All,
303}
304
305#[derive(Copy, Clone, PartialEq, Eq, Debug)]
306pub enum EditorMode {
307 SingleLine,
308 AutoHeight { max_lines: usize },
309 Full,
310}
311
312#[derive(Clone, Debug)]
313pub enum SoftWrap {
314 None,
315 EditorWidth,
316 Column(u32),
317}
318
319#[derive(Clone)]
320pub struct EditorStyle {
321 pub background: Hsla,
322 pub local_player: PlayerColor,
323 pub text: TextStyle,
324 pub scrollbar_width: Pixels,
325 pub syntax: Arc<SyntaxTheme>,
326 pub status: StatusColors,
327 pub inlay_hints_style: HighlightStyle,
328 pub suggestions_style: HighlightStyle,
329}
330
331impl Default for EditorStyle {
332 fn default() -> Self {
333 Self {
334 background: Hsla::default(),
335 local_player: PlayerColor::default(),
336 text: TextStyle::default(),
337 scrollbar_width: Pixels::default(),
338 syntax: Default::default(),
339 // HACK: Status colors don't have a real default.
340 // We should look into removing the status colors from the editor
341 // style and retrieve them directly from the theme.
342 status: StatusColors::dark(),
343 inlay_hints_style: HighlightStyle::default(),
344 suggestions_style: HighlightStyle::default(),
345 }
346 }
347}
348
349type CompletionId = usize;
350
351// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
352// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
353
354type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
355
356/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
357///
358/// See the [module level documentation](self) for more information.
359pub struct Editor {
360 focus_handle: FocusHandle,
361 /// The text buffer being edited
362 buffer: Model<MultiBuffer>,
363 /// Map of how text in the buffer should be displayed.
364 /// Handles soft wraps, folds, fake inlay text insertions, etc.
365 display_map: Model<DisplayMap>,
366 pub selections: SelectionsCollection,
367 pub scroll_manager: ScrollManager,
368 columnar_selection_tail: Option<Anchor>,
369 add_selections_state: Option<AddSelectionsState>,
370 select_next_state: Option<SelectNextState>,
371 select_prev_state: Option<SelectNextState>,
372 selection_history: SelectionHistory,
373 autoclose_regions: Vec<AutocloseRegion>,
374 snippet_stack: InvalidationStack<SnippetState>,
375 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
376 ime_transaction: Option<TransactionId>,
377 active_diagnostics: Option<ActiveDiagnosticGroup>,
378 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
379 project: Option<Model<Project>>,
380 completion_provider: Option<Box<dyn CompletionProvider>>,
381 collaboration_hub: Option<Box<dyn CollaborationHub>>,
382 blink_manager: Model<BlinkManager>,
383 show_cursor_names: bool,
384 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
385 pub show_local_selections: bool,
386 mode: EditorMode,
387 show_breadcrumbs: bool,
388 show_gutter: bool,
389 show_wrap_guides: Option<bool>,
390 placeholder_text: Option<Arc<str>>,
391 highlight_order: usize,
392 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
393 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
394 nav_history: Option<ItemNavHistory>,
395 context_menu: RwLock<Option<ContextMenu>>,
396 mouse_context_menu: Option<MouseContextMenu>,
397 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
398 next_completion_id: CompletionId,
399 completion_documentation_pre_resolve_debounce: DebouncedDelay,
400 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
401 code_actions_task: Option<Task<()>>,
402 document_highlights_task: Option<Task<()>>,
403 pending_rename: Option<RenameState>,
404 searchable: bool,
405 cursor_shape: CursorShape,
406 collapse_matches: bool,
407 autoindent_mode: Option<AutoindentMode>,
408 workspace: Option<(WeakView<Workspace>, i64)>,
409 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
410 input_enabled: bool,
411 use_modal_editing: bool,
412 read_only: bool,
413 leader_peer_id: Option<PeerId>,
414 remote_id: Option<ViewId>,
415 hover_state: HoverState,
416 gutter_hovered: bool,
417 hovered_link_state: Option<HoveredLinkState>,
418 copilot_state: CopilotState,
419 inlay_hint_cache: InlayHintCache,
420 next_inlay_id: usize,
421 _subscriptions: Vec<Subscription>,
422 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
423 gutter_width: Pixels,
424 style: Option<EditorStyle>,
425 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
426 show_copilot_suggestions: bool,
427 use_autoclose: bool,
428 auto_replace_emoji_shortcode: bool,
429 custom_context_menu: Option<
430 Box<
431 dyn 'static
432 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
433 >,
434 >,
435}
436
437pub struct EditorSnapshot {
438 pub mode: EditorMode,
439 show_gutter: bool,
440 pub display_snapshot: DisplaySnapshot,
441 pub placeholder_text: Option<Arc<str>>,
442 is_focused: bool,
443 scroll_anchor: ScrollAnchor,
444 ongoing_scroll: OngoingScroll,
445}
446
447pub struct GutterDimensions {
448 pub left_padding: Pixels,
449 pub right_padding: Pixels,
450 pub width: Pixels,
451 pub margin: Pixels,
452}
453
454impl Default for GutterDimensions {
455 fn default() -> Self {
456 Self {
457 left_padding: Pixels::ZERO,
458 right_padding: Pixels::ZERO,
459 width: Pixels::ZERO,
460 margin: Pixels::ZERO,
461 }
462 }
463}
464
465#[derive(Debug)]
466pub struct RemoteSelection {
467 pub replica_id: ReplicaId,
468 pub selection: Selection<Anchor>,
469 pub cursor_shape: CursorShape,
470 pub peer_id: PeerId,
471 pub line_mode: bool,
472 pub participant_index: Option<ParticipantIndex>,
473 pub user_name: Option<SharedString>,
474}
475
476#[derive(Clone, Debug)]
477struct SelectionHistoryEntry {
478 selections: Arc<[Selection<Anchor>]>,
479 select_next_state: Option<SelectNextState>,
480 select_prev_state: Option<SelectNextState>,
481 add_selections_state: Option<AddSelectionsState>,
482}
483
484enum SelectionHistoryMode {
485 Normal,
486 Undoing,
487 Redoing,
488}
489
490#[derive(Clone, PartialEq, Eq, Hash)]
491struct HoveredCursor {
492 replica_id: u16,
493 selection_id: usize,
494}
495
496impl Default for SelectionHistoryMode {
497 fn default() -> Self {
498 Self::Normal
499 }
500}
501
502#[derive(Default)]
503struct SelectionHistory {
504 #[allow(clippy::type_complexity)]
505 selections_by_transaction:
506 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
507 mode: SelectionHistoryMode,
508 undo_stack: VecDeque<SelectionHistoryEntry>,
509 redo_stack: VecDeque<SelectionHistoryEntry>,
510}
511
512impl SelectionHistory {
513 fn insert_transaction(
514 &mut self,
515 transaction_id: TransactionId,
516 selections: Arc<[Selection<Anchor>]>,
517 ) {
518 self.selections_by_transaction
519 .insert(transaction_id, (selections, None));
520 }
521
522 #[allow(clippy::type_complexity)]
523 fn transaction(
524 &self,
525 transaction_id: TransactionId,
526 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
527 self.selections_by_transaction.get(&transaction_id)
528 }
529
530 #[allow(clippy::type_complexity)]
531 fn transaction_mut(
532 &mut self,
533 transaction_id: TransactionId,
534 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
535 self.selections_by_transaction.get_mut(&transaction_id)
536 }
537
538 fn push(&mut self, entry: SelectionHistoryEntry) {
539 if !entry.selections.is_empty() {
540 match self.mode {
541 SelectionHistoryMode::Normal => {
542 self.push_undo(entry);
543 self.redo_stack.clear();
544 }
545 SelectionHistoryMode::Undoing => self.push_redo(entry),
546 SelectionHistoryMode::Redoing => self.push_undo(entry),
547 }
548 }
549 }
550
551 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
552 if self
553 .undo_stack
554 .back()
555 .map_or(true, |e| e.selections != entry.selections)
556 {
557 self.undo_stack.push_back(entry);
558 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
559 self.undo_stack.pop_front();
560 }
561 }
562 }
563
564 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
565 if self
566 .redo_stack
567 .back()
568 .map_or(true, |e| e.selections != entry.selections)
569 {
570 self.redo_stack.push_back(entry);
571 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
572 self.redo_stack.pop_front();
573 }
574 }
575 }
576}
577
578#[derive(Clone, Debug)]
579struct AddSelectionsState {
580 above: bool,
581 stack: Vec<usize>,
582}
583
584#[derive(Clone)]
585struct SelectNextState {
586 query: AhoCorasick,
587 wordwise: bool,
588 done: bool,
589}
590
591impl std::fmt::Debug for SelectNextState {
592 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
593 f.debug_struct(std::any::type_name::<Self>())
594 .field("wordwise", &self.wordwise)
595 .field("done", &self.done)
596 .finish()
597 }
598}
599
600#[derive(Debug)]
601struct AutocloseRegion {
602 selection_id: usize,
603 range: Range<Anchor>,
604 pair: BracketPair,
605}
606
607#[derive(Debug)]
608struct SnippetState {
609 ranges: Vec<Vec<Range<Anchor>>>,
610 active_index: usize,
611}
612
613#[doc(hidden)]
614pub struct RenameState {
615 pub range: Range<Anchor>,
616 pub old_name: Arc<str>,
617 pub editor: View<Editor>,
618 block_id: BlockId,
619}
620
621struct InvalidationStack<T>(Vec<T>);
622
623enum ContextMenu {
624 Completions(CompletionsMenu),
625 CodeActions(CodeActionsMenu),
626}
627
628impl ContextMenu {
629 fn select_first(
630 &mut self,
631 project: Option<&Model<Project>>,
632 cx: &mut ViewContext<Editor>,
633 ) -> bool {
634 if self.visible() {
635 match self {
636 ContextMenu::Completions(menu) => menu.select_first(project, cx),
637 ContextMenu::CodeActions(menu) => menu.select_first(cx),
638 }
639 true
640 } else {
641 false
642 }
643 }
644
645 fn select_prev(
646 &mut self,
647 project: Option<&Model<Project>>,
648 cx: &mut ViewContext<Editor>,
649 ) -> bool {
650 if self.visible() {
651 match self {
652 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
653 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
654 }
655 true
656 } else {
657 false
658 }
659 }
660
661 fn select_next(
662 &mut self,
663 project: Option<&Model<Project>>,
664 cx: &mut ViewContext<Editor>,
665 ) -> bool {
666 if self.visible() {
667 match self {
668 ContextMenu::Completions(menu) => menu.select_next(project, cx),
669 ContextMenu::CodeActions(menu) => menu.select_next(cx),
670 }
671 true
672 } else {
673 false
674 }
675 }
676
677 fn select_last(
678 &mut self,
679 project: Option<&Model<Project>>,
680 cx: &mut ViewContext<Editor>,
681 ) -> bool {
682 if self.visible() {
683 match self {
684 ContextMenu::Completions(menu) => menu.select_last(project, cx),
685 ContextMenu::CodeActions(menu) => menu.select_last(cx),
686 }
687 true
688 } else {
689 false
690 }
691 }
692
693 fn visible(&self) -> bool {
694 match self {
695 ContextMenu::Completions(menu) => menu.visible(),
696 ContextMenu::CodeActions(menu) => menu.visible(),
697 }
698 }
699
700 fn render(
701 &self,
702 cursor_position: DisplayPoint,
703 style: &EditorStyle,
704 max_height: Pixels,
705 workspace: Option<WeakView<Workspace>>,
706 cx: &mut ViewContext<Editor>,
707 ) -> (DisplayPoint, AnyElement) {
708 match self {
709 ContextMenu::Completions(menu) => (
710 cursor_position,
711 menu.render(style, max_height, workspace, cx),
712 ),
713 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
714 }
715 }
716}
717
718#[derive(Clone)]
719struct CompletionsMenu {
720 id: CompletionId,
721 initial_position: Anchor,
722 buffer: Model<Buffer>,
723 completions: Arc<RwLock<Box<[Completion]>>>,
724 match_candidates: Arc<[StringMatchCandidate]>,
725 matches: Arc<[StringMatch]>,
726 selected_item: usize,
727 scroll_handle: UniformListScrollHandle,
728 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
729}
730
731impl CompletionsMenu {
732 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
733 self.selected_item = 0;
734 self.scroll_handle.scroll_to_item(self.selected_item);
735 self.attempt_resolve_selected_completion_documentation(project, cx);
736 cx.notify();
737 }
738
739 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
740 if self.selected_item > 0 {
741 self.selected_item -= 1;
742 } else {
743 self.selected_item = self.matches.len() - 1;
744 }
745 self.scroll_handle.scroll_to_item(self.selected_item);
746 self.attempt_resolve_selected_completion_documentation(project, cx);
747 cx.notify();
748 }
749
750 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
751 if self.selected_item + 1 < self.matches.len() {
752 self.selected_item += 1;
753 } else {
754 self.selected_item = 0;
755 }
756 self.scroll_handle.scroll_to_item(self.selected_item);
757 self.attempt_resolve_selected_completion_documentation(project, cx);
758 cx.notify();
759 }
760
761 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
762 self.selected_item = self.matches.len() - 1;
763 self.scroll_handle.scroll_to_item(self.selected_item);
764 self.attempt_resolve_selected_completion_documentation(project, cx);
765 cx.notify();
766 }
767
768 fn pre_resolve_completion_documentation(
769 completions: Arc<RwLock<Box<[Completion]>>>,
770 matches: Arc<[StringMatch]>,
771 editor: &Editor,
772 cx: &mut ViewContext<Editor>,
773 ) -> Task<()> {
774 let settings = EditorSettings::get_global(cx);
775 if !settings.show_completion_documentation {
776 return Task::ready(());
777 }
778
779 let Some(provider) = editor.completion_provider.as_ref() else {
780 return Task::ready(());
781 };
782
783 let resolve_task = provider.resolve_completions(
784 matches.iter().map(|m| m.candidate_id).collect(),
785 completions.clone(),
786 cx,
787 );
788
789 return cx.spawn(move |this, mut cx| async move {
790 if let Some(true) = resolve_task.await.log_err() {
791 this.update(&mut cx, |_, cx| cx.notify()).ok();
792 }
793 });
794 }
795
796 fn attempt_resolve_selected_completion_documentation(
797 &mut self,
798 project: Option<&Model<Project>>,
799 cx: &mut ViewContext<Editor>,
800 ) {
801 let settings = EditorSettings::get_global(cx);
802 if !settings.show_completion_documentation {
803 return;
804 }
805
806 let completion_index = self.matches[self.selected_item].candidate_id;
807 let Some(project) = project else {
808 return;
809 };
810
811 let resolve_task = project.update(cx, |project, cx| {
812 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
813 });
814
815 let delay_ms =
816 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
817 let delay = Duration::from_millis(delay_ms);
818
819 self.selected_completion_documentation_resolve_debounce
820 .lock()
821 .fire_new(delay, cx, |_, cx| {
822 cx.spawn(move |this, mut cx| async move {
823 if let Some(true) = resolve_task.await.log_err() {
824 this.update(&mut cx, |_, cx| cx.notify()).ok();
825 }
826 })
827 });
828 }
829
830 fn visible(&self) -> bool {
831 !self.matches.is_empty()
832 }
833
834 fn render(
835 &self,
836 style: &EditorStyle,
837 max_height: Pixels,
838 workspace: Option<WeakView<Workspace>>,
839 cx: &mut ViewContext<Editor>,
840 ) -> AnyElement {
841 let settings = EditorSettings::get_global(cx);
842 let show_completion_documentation = settings.show_completion_documentation;
843
844 let widest_completion_ix = self
845 .matches
846 .iter()
847 .enumerate()
848 .max_by_key(|(_, mat)| {
849 let completions = self.completions.read();
850 let completion = &completions[mat.candidate_id];
851 let documentation = &completion.documentation;
852
853 let mut len = completion.label.text.chars().count();
854 if let Some(Documentation::SingleLine(text)) = documentation {
855 if show_completion_documentation {
856 len += text.chars().count();
857 }
858 }
859
860 len
861 })
862 .map(|(ix, _)| ix);
863
864 let completions = self.completions.clone();
865 let matches = self.matches.clone();
866 let selected_item = self.selected_item;
867 let style = style.clone();
868
869 let multiline_docs = if show_completion_documentation {
870 let mat = &self.matches[selected_item];
871 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
872 Some(Documentation::MultiLinePlainText(text)) => {
873 Some(div().child(SharedString::from(text.clone())))
874 }
875 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
876 Some(div().child(render_parsed_markdown(
877 "completions_markdown",
878 parsed,
879 &style,
880 workspace,
881 cx,
882 )))
883 }
884 _ => None,
885 };
886 multiline_docs.map(|div| {
887 div.id("multiline_docs")
888 .max_h(max_height)
889 .flex_1()
890 .px_1p5()
891 .py_1()
892 .min_w(px(260.))
893 .max_w(px(640.))
894 .w(px(500.))
895 .overflow_y_scroll()
896 // Prevent a mouse down on documentation from being propagated to the editor,
897 // because that would move the cursor.
898 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
899 })
900 } else {
901 None
902 };
903
904 let list = uniform_list(
905 cx.view().clone(),
906 "completions",
907 matches.len(),
908 move |_editor, range, cx| {
909 let start_ix = range.start;
910 let completions_guard = completions.read();
911
912 matches[range]
913 .iter()
914 .enumerate()
915 .map(|(ix, mat)| {
916 let item_ix = start_ix + ix;
917 let candidate_id = mat.candidate_id;
918 let completion = &completions_guard[candidate_id];
919
920 let documentation = if show_completion_documentation {
921 &completion.documentation
922 } else {
923 &None
924 };
925
926 let highlights = gpui::combine_highlights(
927 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
928 styled_runs_for_code_label(&completion.label, &style.syntax).map(
929 |(range, mut highlight)| {
930 // Ignore font weight for syntax highlighting, as we'll use it
931 // for fuzzy matches.
932 highlight.font_weight = None;
933
934 if completion.lsp_completion.deprecated.unwrap_or(false) {
935 highlight.strikethrough = Some(StrikethroughStyle {
936 thickness: 1.0.into(),
937 ..Default::default()
938 });
939 highlight.color = Some(cx.theme().colors().text_muted);
940 }
941
942 (range, highlight)
943 },
944 ),
945 );
946 let completion_label = StyledText::new(completion.label.text.clone())
947 .with_highlights(&style.text, highlights);
948 let documentation_label =
949 if let Some(Documentation::SingleLine(text)) = documentation {
950 if text.trim().is_empty() {
951 None
952 } else {
953 Some(
954 h_flex().ml_4().child(
955 Label::new(text.clone())
956 .size(LabelSize::Small)
957 .color(Color::Muted),
958 ),
959 )
960 }
961 } else {
962 None
963 };
964
965 div().min_w(px(220.)).max_w(px(540.)).child(
966 ListItem::new(mat.candidate_id)
967 .inset(true)
968 .selected(item_ix == selected_item)
969 .on_click(cx.listener(move |editor, _event, cx| {
970 cx.stop_propagation();
971 if let Some(task) = editor.confirm_completion(
972 &ConfirmCompletion {
973 item_ix: Some(item_ix),
974 },
975 cx,
976 ) {
977 task.detach_and_log_err(cx)
978 }
979 }))
980 .child(h_flex().overflow_hidden().child(completion_label))
981 .end_slot::<Div>(documentation_label),
982 )
983 })
984 .collect()
985 },
986 )
987 .max_h(max_height)
988 .track_scroll(self.scroll_handle.clone())
989 .with_width_from_item(widest_completion_ix);
990
991 Popover::new()
992 .child(list)
993 .when_some(multiline_docs, |popover, multiline_docs| {
994 popover.aside(multiline_docs)
995 })
996 .into_any_element()
997 }
998
999 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1000 let mut matches = if let Some(query) = query {
1001 fuzzy::match_strings(
1002 &self.match_candidates,
1003 query,
1004 query.chars().any(|c| c.is_uppercase()),
1005 100,
1006 &Default::default(),
1007 executor,
1008 )
1009 .await
1010 } else {
1011 self.match_candidates
1012 .iter()
1013 .enumerate()
1014 .map(|(candidate_id, candidate)| StringMatch {
1015 candidate_id,
1016 score: Default::default(),
1017 positions: Default::default(),
1018 string: candidate.string.clone(),
1019 })
1020 .collect()
1021 };
1022
1023 // Remove all candidates where the query's start does not match the start of any word in the candidate
1024 if let Some(query) = query {
1025 if let Some(query_start) = query.chars().next() {
1026 matches.retain(|string_match| {
1027 split_words(&string_match.string).any(|word| {
1028 // Check that the first codepoint of the word as lowercase matches the first
1029 // codepoint of the query as lowercase
1030 word.chars()
1031 .flat_map(|codepoint| codepoint.to_lowercase())
1032 .zip(query_start.to_lowercase())
1033 .all(|(word_cp, query_cp)| word_cp == query_cp)
1034 })
1035 });
1036 }
1037 }
1038
1039 let completions = self.completions.read();
1040 matches.sort_unstable_by_key(|mat| {
1041 // We do want to strike a balance here between what the language server tells us
1042 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1043 // `Creat` and there is a local variable called `CreateComponent`).
1044 // So what we do is: we bucket all matches into two buckets
1045 // - Strong matches
1046 // - Weak matches
1047 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1048 // and the Weak matches are the rest.
1049 //
1050 // For the strong matches, we sort by the language-servers score first and for the weak
1051 // matches, we prefer our fuzzy finder first.
1052 //
1053 // The thinking behind that: it's useless to take the sort_text the language-server gives
1054 // us into account when it's obviously a bad match.
1055
1056 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1057 enum MatchScore<'a> {
1058 Strong {
1059 sort_text: Option<&'a str>,
1060 score: Reverse<OrderedFloat<f64>>,
1061 sort_key: (usize, &'a str),
1062 },
1063 Weak {
1064 score: Reverse<OrderedFloat<f64>>,
1065 sort_text: Option<&'a str>,
1066 sort_key: (usize, &'a str),
1067 },
1068 }
1069
1070 let completion = &completions[mat.candidate_id];
1071 let sort_key = completion.sort_key();
1072 let sort_text = completion.lsp_completion.sort_text.as_deref();
1073 let score = Reverse(OrderedFloat(mat.score));
1074
1075 if mat.score >= 0.2 {
1076 MatchScore::Strong {
1077 sort_text,
1078 score,
1079 sort_key,
1080 }
1081 } else {
1082 MatchScore::Weak {
1083 score,
1084 sort_text,
1085 sort_key,
1086 }
1087 }
1088 });
1089
1090 for mat in &mut matches {
1091 let completion = &completions[mat.candidate_id];
1092 mat.string = completion.label.text.clone();
1093 for position in &mut mat.positions {
1094 *position += completion.label.filter_range.start;
1095 }
1096 }
1097 drop(completions);
1098
1099 self.matches = matches.into();
1100 self.selected_item = 0;
1101 }
1102}
1103
1104#[derive(Clone)]
1105struct CodeActionsMenu {
1106 actions: Arc<[CodeAction]>,
1107 buffer: Model<Buffer>,
1108 selected_item: usize,
1109 scroll_handle: UniformListScrollHandle,
1110 deployed_from_indicator: bool,
1111}
1112
1113impl CodeActionsMenu {
1114 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1115 self.selected_item = 0;
1116 self.scroll_handle.scroll_to_item(self.selected_item);
1117 cx.notify()
1118 }
1119
1120 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1121 if self.selected_item > 0 {
1122 self.selected_item -= 1;
1123 } else {
1124 self.selected_item = self.actions.len() - 1;
1125 }
1126 self.scroll_handle.scroll_to_item(self.selected_item);
1127 cx.notify();
1128 }
1129
1130 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1131 if self.selected_item + 1 < self.actions.len() {
1132 self.selected_item += 1;
1133 } else {
1134 self.selected_item = 0;
1135 }
1136 self.scroll_handle.scroll_to_item(self.selected_item);
1137 cx.notify();
1138 }
1139
1140 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1141 self.selected_item = self.actions.len() - 1;
1142 self.scroll_handle.scroll_to_item(self.selected_item);
1143 cx.notify()
1144 }
1145
1146 fn visible(&self) -> bool {
1147 !self.actions.is_empty()
1148 }
1149
1150 fn render(
1151 &self,
1152 mut cursor_position: DisplayPoint,
1153 _style: &EditorStyle,
1154 max_height: Pixels,
1155 cx: &mut ViewContext<Editor>,
1156 ) -> (DisplayPoint, AnyElement) {
1157 let actions = self.actions.clone();
1158 let selected_item = self.selected_item;
1159
1160 let element = uniform_list(
1161 cx.view().clone(),
1162 "code_actions_menu",
1163 self.actions.len(),
1164 move |_this, range, cx| {
1165 actions[range.clone()]
1166 .iter()
1167 .enumerate()
1168 .map(|(ix, action)| {
1169 let item_ix = range.start + ix;
1170 let selected = selected_item == item_ix;
1171 let colors = cx.theme().colors();
1172 div()
1173 .px_2()
1174 .text_color(colors.text)
1175 .when(selected, |style| {
1176 style
1177 .bg(colors.element_active)
1178 .text_color(colors.text_accent)
1179 })
1180 .hover(|style| {
1181 style
1182 .bg(colors.element_hover)
1183 .text_color(colors.text_accent)
1184 })
1185 .on_mouse_down(
1186 MouseButton::Left,
1187 cx.listener(move |editor, _, cx| {
1188 cx.stop_propagation();
1189 if let Some(task) = editor.confirm_code_action(
1190 &ConfirmCodeAction {
1191 item_ix: Some(item_ix),
1192 },
1193 cx,
1194 ) {
1195 task.detach_and_log_err(cx)
1196 }
1197 }),
1198 )
1199 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1200 .child(SharedString::from(action.lsp_action.title.clone()))
1201 })
1202 .collect()
1203 },
1204 )
1205 .elevation_1(cx)
1206 .px_2()
1207 .py_1()
1208 .max_h(max_height)
1209 .track_scroll(self.scroll_handle.clone())
1210 .with_width_from_item(
1211 self.actions
1212 .iter()
1213 .enumerate()
1214 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1215 .map(|(ix, _)| ix),
1216 )
1217 .into_any_element();
1218
1219 if self.deployed_from_indicator {
1220 *cursor_position.column_mut() = 0;
1221 }
1222
1223 (cursor_position, element)
1224 }
1225}
1226
1227#[derive(Debug)]
1228pub(crate) struct CopilotState {
1229 excerpt_id: Option<ExcerptId>,
1230 pending_refresh: Task<Option<()>>,
1231 pending_cycling_refresh: Task<Option<()>>,
1232 cycled: bool,
1233 completions: Vec<copilot::Completion>,
1234 active_completion_index: usize,
1235 suggestion: Option<Inlay>,
1236}
1237
1238impl Default for CopilotState {
1239 fn default() -> Self {
1240 Self {
1241 excerpt_id: None,
1242 pending_cycling_refresh: Task::ready(Some(())),
1243 pending_refresh: Task::ready(Some(())),
1244 completions: Default::default(),
1245 active_completion_index: 0,
1246 cycled: false,
1247 suggestion: None,
1248 }
1249 }
1250}
1251
1252impl CopilotState {
1253 fn active_completion(&self) -> Option<&copilot::Completion> {
1254 self.completions.get(self.active_completion_index)
1255 }
1256
1257 fn text_for_active_completion(
1258 &self,
1259 cursor: Anchor,
1260 buffer: &MultiBufferSnapshot,
1261 ) -> Option<&str> {
1262 use language::ToOffset as _;
1263
1264 let completion = self.active_completion()?;
1265 let excerpt_id = self.excerpt_id?;
1266 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1267 if excerpt_id != cursor.excerpt_id
1268 || !completion.range.start.is_valid(completion_buffer)
1269 || !completion.range.end.is_valid(completion_buffer)
1270 {
1271 return None;
1272 }
1273
1274 let mut completion_range = completion.range.to_offset(&completion_buffer);
1275 let prefix_len = Self::common_prefix(
1276 completion_buffer.chars_for_range(completion_range.clone()),
1277 completion.text.chars(),
1278 );
1279 completion_range.start += prefix_len;
1280 let suffix_len = Self::common_prefix(
1281 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1282 completion.text[prefix_len..].chars().rev(),
1283 );
1284 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1285
1286 if completion_range.is_empty()
1287 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1288 {
1289 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1290 if completion_text.trim().is_empty() {
1291 None
1292 } else {
1293 Some(completion_text)
1294 }
1295 } else {
1296 None
1297 }
1298 }
1299
1300 fn cycle_completions(&mut self, direction: Direction) {
1301 match direction {
1302 Direction::Prev => {
1303 self.active_completion_index = if self.active_completion_index == 0 {
1304 self.completions.len().saturating_sub(1)
1305 } else {
1306 self.active_completion_index - 1
1307 };
1308 }
1309 Direction::Next => {
1310 if self.completions.len() == 0 {
1311 self.active_completion_index = 0
1312 } else {
1313 self.active_completion_index =
1314 (self.active_completion_index + 1) % self.completions.len();
1315 }
1316 }
1317 }
1318 }
1319
1320 fn push_completion(&mut self, new_completion: copilot::Completion) {
1321 for completion in &self.completions {
1322 if completion.text == new_completion.text && completion.range == new_completion.range {
1323 return;
1324 }
1325 }
1326 self.completions.push(new_completion);
1327 }
1328
1329 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1330 a.zip(b)
1331 .take_while(|(a, b)| a == b)
1332 .map(|(a, _)| a.len_utf8())
1333 .sum()
1334 }
1335}
1336
1337#[derive(Debug)]
1338struct ActiveDiagnosticGroup {
1339 primary_range: Range<Anchor>,
1340 primary_message: String,
1341 blocks: HashMap<BlockId, Diagnostic>,
1342 is_valid: bool,
1343}
1344
1345#[derive(Serialize, Deserialize)]
1346pub struct ClipboardSelection {
1347 pub len: usize,
1348 pub is_entire_line: bool,
1349 pub first_line_indent: u32,
1350}
1351
1352#[derive(Debug)]
1353pub(crate) struct NavigationData {
1354 cursor_anchor: Anchor,
1355 cursor_position: Point,
1356 scroll_anchor: ScrollAnchor,
1357 scroll_top_row: u32,
1358}
1359
1360enum GotoDefinitionKind {
1361 Symbol,
1362 Type,
1363 Implementation,
1364}
1365
1366#[derive(Debug, Clone)]
1367enum InlayHintRefreshReason {
1368 Toggle(bool),
1369 SettingsChange(InlayHintSettings),
1370 NewLinesShown,
1371 BufferEdited(HashSet<Arc<Language>>),
1372 RefreshRequested,
1373 ExcerptsRemoved(Vec<ExcerptId>),
1374}
1375
1376impl InlayHintRefreshReason {
1377 fn description(&self) -> &'static str {
1378 match self {
1379 Self::Toggle(_) => "toggle",
1380 Self::SettingsChange(_) => "settings change",
1381 Self::NewLinesShown => "new lines shown",
1382 Self::BufferEdited(_) => "buffer edited",
1383 Self::RefreshRequested => "refresh requested",
1384 Self::ExcerptsRemoved(_) => "excerpts removed",
1385 }
1386 }
1387}
1388
1389impl Editor {
1390 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1391 let buffer = cx.new_model(|cx| {
1392 Buffer::new(
1393 0,
1394 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1395 String::new(),
1396 )
1397 });
1398 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1399 Self::new(EditorMode::SingleLine, buffer, None, cx)
1400 }
1401
1402 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1403 let buffer = cx.new_model(|cx| {
1404 Buffer::new(
1405 0,
1406 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1407 String::new(),
1408 )
1409 });
1410 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1411 Self::new(EditorMode::Full, buffer, None, cx)
1412 }
1413
1414 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1415 let buffer = cx.new_model(|cx| {
1416 Buffer::new(
1417 0,
1418 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1419 String::new(),
1420 )
1421 });
1422 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1423 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1424 }
1425
1426 pub fn for_buffer(
1427 buffer: Model<Buffer>,
1428 project: Option<Model<Project>>,
1429 cx: &mut ViewContext<Self>,
1430 ) -> Self {
1431 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1432 Self::new(EditorMode::Full, buffer, project, cx)
1433 }
1434
1435 pub fn for_multibuffer(
1436 buffer: Model<MultiBuffer>,
1437 project: Option<Model<Project>>,
1438 cx: &mut ViewContext<Self>,
1439 ) -> Self {
1440 Self::new(EditorMode::Full, buffer, project, cx)
1441 }
1442
1443 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1444 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1445 self.display_map.update(cx, |display_map, cx| {
1446 let snapshot = display_map.snapshot(cx);
1447 clone.display_map.update(cx, |display_map, cx| {
1448 display_map.set_state(&snapshot, cx);
1449 });
1450 });
1451 clone.selections.clone_state(&self.selections);
1452 clone.scroll_manager.clone_state(&self.scroll_manager);
1453 clone.searchable = self.searchable;
1454 clone
1455 }
1456
1457 fn new(
1458 mode: EditorMode,
1459 buffer: Model<MultiBuffer>,
1460 project: Option<Model<Project>>,
1461 cx: &mut ViewContext<Self>,
1462 ) -> Self {
1463 let style = cx.text_style();
1464 let font_size = style.font_size.to_pixels(cx.rem_size());
1465 let display_map = cx.new_model(|cx| {
1466 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1467 });
1468
1469 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1470
1471 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1472
1473 let soft_wrap_mode_override =
1474 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1475
1476 let mut project_subscriptions = Vec::new();
1477 if mode == EditorMode::Full {
1478 if let Some(project) = project.as_ref() {
1479 if buffer.read(cx).is_singleton() {
1480 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1481 cx.emit(EditorEvent::TitleChanged);
1482 }));
1483 }
1484 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1485 if let project::Event::RefreshInlayHints = event {
1486 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1487 };
1488 }));
1489 }
1490 }
1491
1492 let inlay_hint_settings = inlay_hint_settings(
1493 selections.newest_anchor().head(),
1494 &buffer.read(cx).snapshot(cx),
1495 cx,
1496 );
1497
1498 let focus_handle = cx.focus_handle();
1499 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1500 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1501
1502 let mut this = Self {
1503 focus_handle,
1504 buffer: buffer.clone(),
1505 display_map: display_map.clone(),
1506 selections,
1507 scroll_manager: ScrollManager::new(cx),
1508 columnar_selection_tail: None,
1509 add_selections_state: None,
1510 select_next_state: None,
1511 select_prev_state: None,
1512 selection_history: Default::default(),
1513 autoclose_regions: Default::default(),
1514 snippet_stack: Default::default(),
1515 select_larger_syntax_node_stack: Vec::new(),
1516 ime_transaction: Default::default(),
1517 active_diagnostics: None,
1518 soft_wrap_mode_override,
1519 completion_provider: project.clone().map(|project| Box::new(project) as _),
1520 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1521 project,
1522 blink_manager: blink_manager.clone(),
1523 show_local_selections: true,
1524 mode,
1525 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1526 show_gutter: mode == EditorMode::Full,
1527 show_wrap_guides: None,
1528 placeholder_text: None,
1529 highlight_order: 0,
1530 highlighted_rows: HashMap::default(),
1531 background_highlights: Default::default(),
1532 nav_history: None,
1533 context_menu: RwLock::new(None),
1534 mouse_context_menu: None,
1535 completion_tasks: Default::default(),
1536 next_completion_id: 0,
1537 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1538 next_inlay_id: 0,
1539 available_code_actions: Default::default(),
1540 code_actions_task: Default::default(),
1541 document_highlights_task: Default::default(),
1542 pending_rename: Default::default(),
1543 searchable: true,
1544 cursor_shape: Default::default(),
1545 autoindent_mode: Some(AutoindentMode::EachLine),
1546 collapse_matches: false,
1547 workspace: None,
1548 keymap_context_layers: Default::default(),
1549 input_enabled: true,
1550 use_modal_editing: mode == EditorMode::Full,
1551 read_only: false,
1552 use_autoclose: true,
1553 auto_replace_emoji_shortcode: false,
1554 leader_peer_id: None,
1555 remote_id: None,
1556 hover_state: Default::default(),
1557 hovered_link_state: Default::default(),
1558 copilot_state: Default::default(),
1559 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1560 gutter_hovered: false,
1561 pixel_position_of_newest_cursor: None,
1562 gutter_width: Default::default(),
1563 style: None,
1564 show_cursor_names: false,
1565 hovered_cursors: Default::default(),
1566 editor_actions: Default::default(),
1567 show_copilot_suggestions: mode == EditorMode::Full,
1568 custom_context_menu: None,
1569 _subscriptions: vec![
1570 cx.observe(&buffer, Self::on_buffer_changed),
1571 cx.subscribe(&buffer, Self::on_buffer_event),
1572 cx.observe(&display_map, Self::on_display_map_changed),
1573 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1574 cx.observe_global::<SettingsStore>(Self::settings_changed),
1575 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1576 cx.observe_window_activation(|editor, cx| {
1577 let active = cx.is_window_active();
1578 editor.blink_manager.update(cx, |blink_manager, cx| {
1579 if active {
1580 blink_manager.enable(cx);
1581 } else {
1582 blink_manager.show_cursor(cx);
1583 blink_manager.disable(cx);
1584 }
1585 });
1586 }),
1587 ],
1588 };
1589
1590 this._subscriptions.extend(project_subscriptions);
1591
1592 this.end_selection(cx);
1593 this.scroll_manager.show_scrollbar(cx);
1594
1595 if mode == EditorMode::Full {
1596 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1597 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1598 }
1599
1600 this.report_editor_event("open", None, cx);
1601 this
1602 }
1603
1604 fn key_context(&self, cx: &AppContext) -> KeyContext {
1605 let mut key_context = KeyContext::default();
1606 key_context.add("Editor");
1607 let mode = match self.mode {
1608 EditorMode::SingleLine => "single_line",
1609 EditorMode::AutoHeight { .. } => "auto_height",
1610 EditorMode::Full => "full",
1611 };
1612 key_context.set("mode", mode);
1613 if self.pending_rename.is_some() {
1614 key_context.add("renaming");
1615 }
1616 if self.context_menu_visible() {
1617 match self.context_menu.read().as_ref() {
1618 Some(ContextMenu::Completions(_)) => {
1619 key_context.add("menu");
1620 key_context.add("showing_completions")
1621 }
1622 Some(ContextMenu::CodeActions(_)) => {
1623 key_context.add("menu");
1624 key_context.add("showing_code_actions")
1625 }
1626 None => {}
1627 }
1628 }
1629
1630 for layer in self.keymap_context_layers.values() {
1631 key_context.extend(layer);
1632 }
1633
1634 if let Some(extension) = self
1635 .buffer
1636 .read(cx)
1637 .as_singleton()
1638 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1639 {
1640 key_context.set("extension", extension.to_string());
1641 }
1642
1643 if self.has_active_copilot_suggestion(cx) {
1644 key_context.add("copilot_suggestion");
1645 }
1646
1647 key_context
1648 }
1649
1650 pub fn new_file(
1651 workspace: &mut Workspace,
1652 _: &workspace::NewFile,
1653 cx: &mut ViewContext<Workspace>,
1654 ) {
1655 let project = workspace.project().clone();
1656 if project.read(cx).is_remote() {
1657 cx.propagate();
1658 } else if let Some(buffer) = project
1659 .update(cx, |project, cx| project.create_buffer("", None, cx))
1660 .log_err()
1661 {
1662 workspace.add_item_to_active_pane(
1663 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1664 cx,
1665 );
1666 }
1667 }
1668
1669 pub fn new_file_in_direction(
1670 workspace: &mut Workspace,
1671 action: &workspace::NewFileInDirection,
1672 cx: &mut ViewContext<Workspace>,
1673 ) {
1674 let project = workspace.project().clone();
1675 if project.read(cx).is_remote() {
1676 cx.propagate();
1677 } else if let Some(buffer) = project
1678 .update(cx, |project, cx| project.create_buffer("", None, cx))
1679 .log_err()
1680 {
1681 workspace.split_item(
1682 action.0,
1683 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1684 cx,
1685 );
1686 }
1687 }
1688
1689 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1690 self.buffer.read(cx).replica_id()
1691 }
1692
1693 pub fn leader_peer_id(&self) -> Option<PeerId> {
1694 self.leader_peer_id
1695 }
1696
1697 pub fn buffer(&self) -> &Model<MultiBuffer> {
1698 &self.buffer
1699 }
1700
1701 pub fn workspace(&self) -> Option<View<Workspace>> {
1702 self.workspace.as_ref()?.0.upgrade()
1703 }
1704
1705 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1706 self.buffer().read(cx).title(cx)
1707 }
1708
1709 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1710 EditorSnapshot {
1711 mode: self.mode,
1712 show_gutter: self.show_gutter,
1713 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1714 scroll_anchor: self.scroll_manager.anchor(),
1715 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1716 placeholder_text: self.placeholder_text.clone(),
1717 is_focused: self.focus_handle.is_focused(cx),
1718 }
1719 }
1720
1721 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1722 self.buffer.read(cx).language_at(point, cx)
1723 }
1724
1725 pub fn file_at<T: ToOffset>(
1726 &self,
1727 point: T,
1728 cx: &AppContext,
1729 ) -> Option<Arc<dyn language::File>> {
1730 self.buffer.read(cx).read(cx).file_at(point).cloned()
1731 }
1732
1733 pub fn active_excerpt(
1734 &self,
1735 cx: &AppContext,
1736 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1737 self.buffer
1738 .read(cx)
1739 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1740 }
1741
1742 pub fn mode(&self) -> EditorMode {
1743 self.mode
1744 }
1745
1746 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1747 self.collaboration_hub.as_deref()
1748 }
1749
1750 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1751 self.collaboration_hub = Some(hub);
1752 }
1753
1754 pub fn set_custom_context_menu(
1755 &mut self,
1756 f: impl 'static
1757 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1758 ) {
1759 self.custom_context_menu = Some(Box::new(f))
1760 }
1761
1762 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1763 self.completion_provider = Some(hub);
1764 }
1765
1766 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1767 self.placeholder_text.as_deref()
1768 }
1769
1770 pub fn set_placeholder_text(
1771 &mut self,
1772 placeholder_text: impl Into<Arc<str>>,
1773 cx: &mut ViewContext<Self>,
1774 ) {
1775 let placeholder_text = Some(placeholder_text.into());
1776 if self.placeholder_text != placeholder_text {
1777 self.placeholder_text = placeholder_text;
1778 cx.notify();
1779 }
1780 }
1781
1782 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1783 self.cursor_shape = cursor_shape;
1784 cx.notify();
1785 }
1786
1787 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1788 self.collapse_matches = collapse_matches;
1789 }
1790
1791 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1792 if self.collapse_matches {
1793 return range.start..range.start;
1794 }
1795 range.clone()
1796 }
1797
1798 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1799 if self.display_map.read(cx).clip_at_line_ends != clip {
1800 self.display_map
1801 .update(cx, |map, _| map.clip_at_line_ends = clip);
1802 }
1803 }
1804
1805 pub fn set_keymap_context_layer<Tag: 'static>(
1806 &mut self,
1807 context: KeyContext,
1808 cx: &mut ViewContext<Self>,
1809 ) {
1810 self.keymap_context_layers
1811 .insert(TypeId::of::<Tag>(), context);
1812 cx.notify();
1813 }
1814
1815 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1816 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1817 cx.notify();
1818 }
1819
1820 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1821 self.input_enabled = input_enabled;
1822 }
1823
1824 pub fn set_autoindent(&mut self, autoindent: bool) {
1825 if autoindent {
1826 self.autoindent_mode = Some(AutoindentMode::EachLine);
1827 } else {
1828 self.autoindent_mode = None;
1829 }
1830 }
1831
1832 pub fn read_only(&self, cx: &AppContext) -> bool {
1833 self.read_only || self.buffer.read(cx).read_only()
1834 }
1835
1836 pub fn set_read_only(&mut self, read_only: bool) {
1837 self.read_only = read_only;
1838 }
1839
1840 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1841 self.use_autoclose = autoclose;
1842 }
1843
1844 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1845 self.auto_replace_emoji_shortcode = auto_replace;
1846 }
1847
1848 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1849 self.show_copilot_suggestions = show_copilot_suggestions;
1850 }
1851
1852 pub fn set_use_modal_editing(&mut self, to: bool) {
1853 self.use_modal_editing = to;
1854 }
1855
1856 pub fn use_modal_editing(&self) -> bool {
1857 self.use_modal_editing
1858 }
1859
1860 fn selections_did_change(
1861 &mut self,
1862 local: bool,
1863 old_cursor_position: &Anchor,
1864 cx: &mut ViewContext<Self>,
1865 ) {
1866 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1867 self.buffer.update(cx, |buffer, cx| {
1868 buffer.set_active_selections(
1869 &self.selections.disjoint_anchors(),
1870 self.selections.line_mode,
1871 self.cursor_shape,
1872 cx,
1873 )
1874 });
1875 }
1876
1877 let display_map = self
1878 .display_map
1879 .update(cx, |display_map, cx| display_map.snapshot(cx));
1880 let buffer = &display_map.buffer_snapshot;
1881 self.add_selections_state = None;
1882 self.select_next_state = None;
1883 self.select_prev_state = None;
1884 self.select_larger_syntax_node_stack.clear();
1885 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1886 self.snippet_stack
1887 .invalidate(&self.selections.disjoint_anchors(), buffer);
1888 self.take_rename(false, cx);
1889
1890 let new_cursor_position = self.selections.newest_anchor().head();
1891
1892 self.push_to_nav_history(
1893 *old_cursor_position,
1894 Some(new_cursor_position.to_point(buffer)),
1895 cx,
1896 );
1897
1898 if local {
1899 let new_cursor_position = self.selections.newest_anchor().head();
1900 let mut context_menu = self.context_menu.write();
1901 let completion_menu = match context_menu.as_ref() {
1902 Some(ContextMenu::Completions(menu)) => Some(menu),
1903
1904 _ => {
1905 *context_menu = None;
1906 None
1907 }
1908 };
1909
1910 if let Some(completion_menu) = completion_menu {
1911 let cursor_position = new_cursor_position.to_offset(buffer);
1912 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1913 if kind == Some(CharKind::Word)
1914 && word_range.to_inclusive().contains(&cursor_position)
1915 {
1916 let mut completion_menu = completion_menu.clone();
1917 drop(context_menu);
1918
1919 let query = Self::completion_query(buffer, cursor_position);
1920 cx.spawn(move |this, mut cx| async move {
1921 completion_menu
1922 .filter(query.as_deref(), cx.background_executor().clone())
1923 .await;
1924
1925 this.update(&mut cx, |this, cx| {
1926 let mut context_menu = this.context_menu.write();
1927 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1928 return;
1929 };
1930
1931 if menu.id > completion_menu.id {
1932 return;
1933 }
1934
1935 *context_menu = Some(ContextMenu::Completions(completion_menu));
1936 drop(context_menu);
1937 cx.notify();
1938 })
1939 })
1940 .detach();
1941
1942 self.show_completions(&ShowCompletions, cx);
1943 } else {
1944 drop(context_menu);
1945 self.hide_context_menu(cx);
1946 }
1947 } else {
1948 drop(context_menu);
1949 }
1950
1951 hide_hover(self, cx);
1952
1953 if old_cursor_position.to_display_point(&display_map).row()
1954 != new_cursor_position.to_display_point(&display_map).row()
1955 {
1956 self.available_code_actions.take();
1957 }
1958 self.refresh_code_actions(cx);
1959 self.refresh_document_highlights(cx);
1960 refresh_matching_bracket_highlights(self, cx);
1961 self.discard_copilot_suggestion(cx);
1962 }
1963
1964 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1965 cx.emit(EditorEvent::SelectionsChanged { local });
1966
1967 if self.selections.disjoint_anchors().len() == 1 {
1968 cx.emit(SearchEvent::ActiveMatchChanged)
1969 }
1970
1971 cx.notify();
1972 }
1973
1974 pub fn change_selections<R>(
1975 &mut self,
1976 autoscroll: Option<Autoscroll>,
1977 cx: &mut ViewContext<Self>,
1978 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1979 ) -> R {
1980 let old_cursor_position = self.selections.newest_anchor().head();
1981 self.push_to_selection_history();
1982
1983 let (changed, result) = self.selections.change_with(cx, change);
1984
1985 if changed {
1986 if let Some(autoscroll) = autoscroll {
1987 self.request_autoscroll(autoscroll, cx);
1988 }
1989 self.selections_did_change(true, &old_cursor_position, cx);
1990 }
1991
1992 result
1993 }
1994
1995 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1996 where
1997 I: IntoIterator<Item = (Range<S>, T)>,
1998 S: ToOffset,
1999 T: Into<Arc<str>>,
2000 {
2001 if self.read_only(cx) {
2002 return;
2003 }
2004
2005 self.buffer
2006 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2007 }
2008
2009 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2010 where
2011 I: IntoIterator<Item = (Range<S>, T)>,
2012 S: ToOffset,
2013 T: Into<Arc<str>>,
2014 {
2015 if self.read_only(cx) {
2016 return;
2017 }
2018
2019 self.buffer.update(cx, |buffer, cx| {
2020 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2021 });
2022 }
2023
2024 pub fn edit_with_block_indent<I, S, T>(
2025 &mut self,
2026 edits: I,
2027 original_indent_columns: Vec<u32>,
2028 cx: &mut ViewContext<Self>,
2029 ) where
2030 I: IntoIterator<Item = (Range<S>, T)>,
2031 S: ToOffset,
2032 T: Into<Arc<str>>,
2033 {
2034 if self.read_only(cx) {
2035 return;
2036 }
2037
2038 self.buffer.update(cx, |buffer, cx| {
2039 buffer.edit(
2040 edits,
2041 Some(AutoindentMode::Block {
2042 original_indent_columns,
2043 }),
2044 cx,
2045 )
2046 });
2047 }
2048
2049 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2050 self.hide_context_menu(cx);
2051
2052 match phase {
2053 SelectPhase::Begin {
2054 position,
2055 add,
2056 click_count,
2057 } => self.begin_selection(position, add, click_count, cx),
2058 SelectPhase::BeginColumnar {
2059 position,
2060 goal_column,
2061 } => self.begin_columnar_selection(position, goal_column, cx),
2062 SelectPhase::Extend {
2063 position,
2064 click_count,
2065 } => self.extend_selection(position, click_count, cx),
2066 SelectPhase::Update {
2067 position,
2068 goal_column,
2069 scroll_delta,
2070 } => self.update_selection(position, goal_column, scroll_delta, cx),
2071 SelectPhase::End => self.end_selection(cx),
2072 }
2073 }
2074
2075 fn extend_selection(
2076 &mut self,
2077 position: DisplayPoint,
2078 click_count: usize,
2079 cx: &mut ViewContext<Self>,
2080 ) {
2081 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2082 let tail = self.selections.newest::<usize>(cx).tail();
2083 self.begin_selection(position, false, click_count, cx);
2084
2085 let position = position.to_offset(&display_map, Bias::Left);
2086 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2087
2088 let mut pending_selection = self
2089 .selections
2090 .pending_anchor()
2091 .expect("extend_selection not called with pending selection");
2092 if position >= tail {
2093 pending_selection.start = tail_anchor;
2094 } else {
2095 pending_selection.end = tail_anchor;
2096 pending_selection.reversed = true;
2097 }
2098
2099 let mut pending_mode = self.selections.pending_mode().unwrap();
2100 match &mut pending_mode {
2101 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2102 _ => {}
2103 }
2104
2105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2106 s.set_pending(pending_selection, pending_mode)
2107 });
2108 }
2109
2110 fn begin_selection(
2111 &mut self,
2112 position: DisplayPoint,
2113 add: bool,
2114 click_count: usize,
2115 cx: &mut ViewContext<Self>,
2116 ) {
2117 if !self.focus_handle.is_focused(cx) {
2118 cx.focus(&self.focus_handle);
2119 }
2120
2121 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2122 let buffer = &display_map.buffer_snapshot;
2123 let newest_selection = self.selections.newest_anchor().clone();
2124 let position = display_map.clip_point(position, Bias::Left);
2125
2126 let start;
2127 let end;
2128 let mode;
2129 let auto_scroll;
2130 match click_count {
2131 1 => {
2132 start = buffer.anchor_before(position.to_point(&display_map));
2133 end = start;
2134 mode = SelectMode::Character;
2135 auto_scroll = true;
2136 }
2137 2 => {
2138 let range = movement::surrounding_word(&display_map, position);
2139 start = buffer.anchor_before(range.start.to_point(&display_map));
2140 end = buffer.anchor_before(range.end.to_point(&display_map));
2141 mode = SelectMode::Word(start..end);
2142 auto_scroll = true;
2143 }
2144 3 => {
2145 let position = display_map
2146 .clip_point(position, Bias::Left)
2147 .to_point(&display_map);
2148 let line_start = display_map.prev_line_boundary(position).0;
2149 let next_line_start = buffer.clip_point(
2150 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2151 Bias::Left,
2152 );
2153 start = buffer.anchor_before(line_start);
2154 end = buffer.anchor_before(next_line_start);
2155 mode = SelectMode::Line(start..end);
2156 auto_scroll = true;
2157 }
2158 _ => {
2159 start = buffer.anchor_before(0);
2160 end = buffer.anchor_before(buffer.len());
2161 mode = SelectMode::All;
2162 auto_scroll = false;
2163 }
2164 }
2165
2166 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2167 if !add {
2168 s.clear_disjoint();
2169 } else if click_count > 1 {
2170 s.delete(newest_selection.id)
2171 }
2172
2173 s.set_pending_anchor_range(start..end, mode);
2174 });
2175 }
2176
2177 fn begin_columnar_selection(
2178 &mut self,
2179 position: DisplayPoint,
2180 goal_column: u32,
2181 cx: &mut ViewContext<Self>,
2182 ) {
2183 if !self.focus_handle.is_focused(cx) {
2184 cx.focus(&self.focus_handle);
2185 }
2186
2187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2188 let tail = self.selections.newest::<Point>(cx).tail();
2189 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2190
2191 self.select_columns(
2192 tail.to_display_point(&display_map),
2193 position,
2194 goal_column,
2195 &display_map,
2196 cx,
2197 );
2198 }
2199
2200 fn update_selection(
2201 &mut self,
2202 position: DisplayPoint,
2203 goal_column: u32,
2204 scroll_delta: gpui::Point<f32>,
2205 cx: &mut ViewContext<Self>,
2206 ) {
2207 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2208
2209 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2210 let tail = tail.to_display_point(&display_map);
2211 self.select_columns(tail, position, goal_column, &display_map, cx);
2212 } else if let Some(mut pending) = self.selections.pending_anchor() {
2213 let buffer = self.buffer.read(cx).snapshot(cx);
2214 let head;
2215 let tail;
2216 let mode = self.selections.pending_mode().unwrap();
2217 match &mode {
2218 SelectMode::Character => {
2219 head = position.to_point(&display_map);
2220 tail = pending.tail().to_point(&buffer);
2221 }
2222 SelectMode::Word(original_range) => {
2223 let original_display_range = original_range.start.to_display_point(&display_map)
2224 ..original_range.end.to_display_point(&display_map);
2225 let original_buffer_range = original_display_range.start.to_point(&display_map)
2226 ..original_display_range.end.to_point(&display_map);
2227 if movement::is_inside_word(&display_map, position)
2228 || original_display_range.contains(&position)
2229 {
2230 let word_range = movement::surrounding_word(&display_map, position);
2231 if word_range.start < original_display_range.start {
2232 head = word_range.start.to_point(&display_map);
2233 } else {
2234 head = word_range.end.to_point(&display_map);
2235 }
2236 } else {
2237 head = position.to_point(&display_map);
2238 }
2239
2240 if head <= original_buffer_range.start {
2241 tail = original_buffer_range.end;
2242 } else {
2243 tail = original_buffer_range.start;
2244 }
2245 }
2246 SelectMode::Line(original_range) => {
2247 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2248
2249 let position = display_map
2250 .clip_point(position, Bias::Left)
2251 .to_point(&display_map);
2252 let line_start = display_map.prev_line_boundary(position).0;
2253 let next_line_start = buffer.clip_point(
2254 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2255 Bias::Left,
2256 );
2257
2258 if line_start < original_range.start {
2259 head = line_start
2260 } else {
2261 head = next_line_start
2262 }
2263
2264 if head <= original_range.start {
2265 tail = original_range.end;
2266 } else {
2267 tail = original_range.start;
2268 }
2269 }
2270 SelectMode::All => {
2271 return;
2272 }
2273 };
2274
2275 if head < tail {
2276 pending.start = buffer.anchor_before(head);
2277 pending.end = buffer.anchor_before(tail);
2278 pending.reversed = true;
2279 } else {
2280 pending.start = buffer.anchor_before(tail);
2281 pending.end = buffer.anchor_before(head);
2282 pending.reversed = false;
2283 }
2284
2285 self.change_selections(None, cx, |s| {
2286 s.set_pending(pending, mode);
2287 });
2288 } else {
2289 log::error!("update_selection dispatched with no pending selection");
2290 return;
2291 }
2292
2293 self.apply_scroll_delta(scroll_delta, cx);
2294 cx.notify();
2295 }
2296
2297 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2298 self.columnar_selection_tail.take();
2299 if self.selections.pending_anchor().is_some() {
2300 let selections = self.selections.all::<usize>(cx);
2301 self.change_selections(None, cx, |s| {
2302 s.select(selections);
2303 s.clear_pending();
2304 });
2305 }
2306 }
2307
2308 fn select_columns(
2309 &mut self,
2310 tail: DisplayPoint,
2311 head: DisplayPoint,
2312 goal_column: u32,
2313 display_map: &DisplaySnapshot,
2314 cx: &mut ViewContext<Self>,
2315 ) {
2316 let start_row = cmp::min(tail.row(), head.row());
2317 let end_row = cmp::max(tail.row(), head.row());
2318 let start_column = cmp::min(tail.column(), goal_column);
2319 let end_column = cmp::max(tail.column(), goal_column);
2320 let reversed = start_column < tail.column();
2321
2322 let selection_ranges = (start_row..=end_row)
2323 .filter_map(|row| {
2324 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2325 let start = display_map
2326 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2327 .to_point(display_map);
2328 let end = display_map
2329 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2330 .to_point(display_map);
2331 if reversed {
2332 Some(end..start)
2333 } else {
2334 Some(start..end)
2335 }
2336 } else {
2337 None
2338 }
2339 })
2340 .collect::<Vec<_>>();
2341
2342 self.change_selections(None, cx, |s| {
2343 s.select_ranges(selection_ranges);
2344 });
2345 cx.notify();
2346 }
2347
2348 pub fn has_pending_nonempty_selection(&self) -> bool {
2349 let pending_nonempty_selection = match self.selections.pending_anchor() {
2350 Some(Selection { start, end, .. }) => start != end,
2351 None => false,
2352 };
2353 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2354 }
2355
2356 pub fn has_pending_selection(&self) -> bool {
2357 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2358 }
2359
2360 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2361 if self.dismiss_menus_and_popups(cx) {
2362 return;
2363 }
2364
2365 if self.mode == EditorMode::Full {
2366 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2367 return;
2368 }
2369 }
2370
2371 cx.propagate();
2372 }
2373
2374 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2375 if self.take_rename(false, cx).is_some() {
2376 return true;
2377 }
2378
2379 if hide_hover(self, cx) {
2380 return true;
2381 }
2382
2383 if self.hide_context_menu(cx).is_some() {
2384 return true;
2385 }
2386
2387 if self.discard_copilot_suggestion(cx) {
2388 return true;
2389 }
2390
2391 if self.snippet_stack.pop().is_some() {
2392 return true;
2393 }
2394
2395 if self.mode == EditorMode::Full {
2396 if self.active_diagnostics.is_some() {
2397 self.dismiss_diagnostics(cx);
2398 return true;
2399 }
2400 }
2401
2402 false
2403 }
2404
2405 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2406 let text: Arc<str> = text.into();
2407
2408 if self.read_only(cx) {
2409 return;
2410 }
2411
2412 let selections = self.selections.all_adjusted(cx);
2413 let mut brace_inserted = false;
2414 let mut edits = Vec::new();
2415 let mut new_selections = Vec::with_capacity(selections.len());
2416 let mut new_autoclose_regions = Vec::new();
2417 let snapshot = self.buffer.read(cx).read(cx);
2418
2419 for (selection, autoclose_region) in
2420 self.selections_with_autoclose_regions(selections, &snapshot)
2421 {
2422 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2423 // Determine if the inserted text matches the opening or closing
2424 // bracket of any of this language's bracket pairs.
2425 let mut bracket_pair = None;
2426 let mut is_bracket_pair_start = false;
2427 if !text.is_empty() {
2428 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2429 // and they are removing the character that triggered IME popup.
2430 for (pair, enabled) in scope.brackets() {
2431 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2432 bracket_pair = Some(pair.clone());
2433 is_bracket_pair_start = true;
2434 break;
2435 } else if pair.end.as_str() == text.as_ref() {
2436 bracket_pair = Some(pair.clone());
2437 break;
2438 }
2439 }
2440 }
2441
2442 if let Some(bracket_pair) = bracket_pair {
2443 if selection.is_empty() {
2444 if is_bracket_pair_start {
2445 let prefix_len = bracket_pair.start.len() - text.len();
2446
2447 // If the inserted text is a suffix of an opening bracket and the
2448 // selection is preceded by the rest of the opening bracket, then
2449 // insert the closing bracket.
2450 let following_text_allows_autoclose = snapshot
2451 .chars_at(selection.start)
2452 .next()
2453 .map_or(true, |c| scope.should_autoclose_before(c));
2454 let preceding_text_matches_prefix = prefix_len == 0
2455 || (selection.start.column >= (prefix_len as u32)
2456 && snapshot.contains_str_at(
2457 Point::new(
2458 selection.start.row,
2459 selection.start.column - (prefix_len as u32),
2460 ),
2461 &bracket_pair.start[..prefix_len],
2462 ));
2463 let autoclose = self.use_autoclose
2464 && snapshot.settings_at(selection.start, cx).use_autoclose;
2465 if autoclose
2466 && following_text_allows_autoclose
2467 && preceding_text_matches_prefix
2468 {
2469 let anchor = snapshot.anchor_before(selection.end);
2470 new_selections.push((selection.map(|_| anchor), text.len()));
2471 new_autoclose_regions.push((
2472 anchor,
2473 text.len(),
2474 selection.id,
2475 bracket_pair.clone(),
2476 ));
2477 edits.push((
2478 selection.range(),
2479 format!("{}{}", text, bracket_pair.end).into(),
2480 ));
2481 brace_inserted = true;
2482 continue;
2483 }
2484 }
2485
2486 if let Some(region) = autoclose_region {
2487 // If the selection is followed by an auto-inserted closing bracket,
2488 // then don't insert that closing bracket again; just move the selection
2489 // past the closing bracket.
2490 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2491 && text.as_ref() == region.pair.end.as_str();
2492 if should_skip {
2493 let anchor = snapshot.anchor_after(selection.end);
2494 new_selections
2495 .push((selection.map(|_| anchor), region.pair.end.len()));
2496 continue;
2497 }
2498 }
2499 }
2500 // If an opening bracket is 1 character long and is typed while
2501 // text is selected, then surround that text with the bracket pair.
2502 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2503 edits.push((selection.start..selection.start, text.clone()));
2504 edits.push((
2505 selection.end..selection.end,
2506 bracket_pair.end.as_str().into(),
2507 ));
2508 brace_inserted = true;
2509 new_selections.push((
2510 Selection {
2511 id: selection.id,
2512 start: snapshot.anchor_after(selection.start),
2513 end: snapshot.anchor_before(selection.end),
2514 reversed: selection.reversed,
2515 goal: selection.goal,
2516 },
2517 0,
2518 ));
2519 continue;
2520 }
2521 }
2522 }
2523
2524 if self.auto_replace_emoji_shortcode
2525 && selection.is_empty()
2526 && text.as_ref().ends_with(':')
2527 {
2528 if let Some(possible_emoji_short_code) =
2529 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2530 {
2531 if !possible_emoji_short_code.is_empty() {
2532 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2533 let emoji_shortcode_start = Point::new(
2534 selection.start.row,
2535 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2536 );
2537
2538 // Remove shortcode from buffer
2539 edits.push((
2540 emoji_shortcode_start..selection.start,
2541 "".to_string().into(),
2542 ));
2543 new_selections.push((
2544 Selection {
2545 id: selection.id,
2546 start: snapshot.anchor_after(emoji_shortcode_start),
2547 end: snapshot.anchor_before(selection.start),
2548 reversed: selection.reversed,
2549 goal: selection.goal,
2550 },
2551 0,
2552 ));
2553
2554 // Insert emoji
2555 let selection_start_anchor = snapshot.anchor_after(selection.start);
2556 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2557 edits.push((selection.start..selection.end, emoji.to_string().into()));
2558
2559 continue;
2560 }
2561 }
2562 }
2563 }
2564
2565 // If not handling any auto-close operation, then just replace the selected
2566 // text with the given input and move the selection to the end of the
2567 // newly inserted text.
2568 let anchor = snapshot.anchor_after(selection.end);
2569 new_selections.push((selection.map(|_| anchor), 0));
2570 edits.push((selection.start..selection.end, text.clone()));
2571 }
2572
2573 drop(snapshot);
2574 self.transact(cx, |this, cx| {
2575 this.buffer.update(cx, |buffer, cx| {
2576 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2577 });
2578
2579 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2580 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2581 let snapshot = this.buffer.read(cx).read(cx);
2582 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2583 .zip(new_selection_deltas)
2584 .map(|(selection, delta)| Selection {
2585 id: selection.id,
2586 start: selection.start + delta,
2587 end: selection.end + delta,
2588 reversed: selection.reversed,
2589 goal: SelectionGoal::None,
2590 })
2591 .collect::<Vec<_>>();
2592
2593 let mut i = 0;
2594 for (position, delta, selection_id, pair) in new_autoclose_regions {
2595 let position = position.to_offset(&snapshot) + delta;
2596 let start = snapshot.anchor_before(position);
2597 let end = snapshot.anchor_after(position);
2598 while let Some(existing_state) = this.autoclose_regions.get(i) {
2599 match existing_state.range.start.cmp(&start, &snapshot) {
2600 Ordering::Less => i += 1,
2601 Ordering::Greater => break,
2602 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2603 Ordering::Less => i += 1,
2604 Ordering::Equal => break,
2605 Ordering::Greater => break,
2606 },
2607 }
2608 }
2609 this.autoclose_regions.insert(
2610 i,
2611 AutocloseRegion {
2612 selection_id,
2613 range: start..end,
2614 pair,
2615 },
2616 );
2617 }
2618
2619 drop(snapshot);
2620 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2621 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2622
2623 if brace_inserted {
2624 // If we inserted a brace while composing text (i.e. typing `"` on a
2625 // Brazilian keyboard), exit the composing state because most likely
2626 // the user wanted to surround the selection.
2627 this.unmark_text(cx);
2628 } else if EditorSettings::get_global(cx).use_on_type_format {
2629 if let Some(on_type_format_task) =
2630 this.trigger_on_type_formatting(text.to_string(), cx)
2631 {
2632 on_type_format_task.detach_and_log_err(cx);
2633 }
2634 }
2635
2636 if had_active_copilot_suggestion {
2637 this.refresh_copilot_suggestions(true, cx);
2638 if !this.has_active_copilot_suggestion(cx) {
2639 this.trigger_completion_on_input(&text, cx);
2640 }
2641 } else {
2642 this.trigger_completion_on_input(&text, cx);
2643 this.refresh_copilot_suggestions(true, cx);
2644 }
2645 });
2646 }
2647
2648 fn find_possible_emoji_shortcode_at_position(
2649 snapshot: &MultiBufferSnapshot,
2650 position: Point,
2651 ) -> Option<String> {
2652 let mut chars = Vec::new();
2653 let mut found_colon = false;
2654 for char in snapshot.reversed_chars_at(position).take(100) {
2655 // Found a possible emoji shortcode in the middle of the buffer
2656 if found_colon && char.is_whitespace() {
2657 chars.reverse();
2658 return Some(chars.iter().collect());
2659 }
2660 if char.is_whitespace() || !char.is_ascii() {
2661 return None;
2662 }
2663 if char == ':' {
2664 found_colon = true;
2665 } else {
2666 chars.push(char);
2667 }
2668 }
2669 // Found a possible emoji shortcode at the beginning of the buffer
2670 chars.reverse();
2671 Some(chars.iter().collect())
2672 }
2673
2674 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2675 self.transact(cx, |this, cx| {
2676 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2677 let selections = this.selections.all::<usize>(cx);
2678 let multi_buffer = this.buffer.read(cx);
2679 let buffer = multi_buffer.snapshot(cx);
2680 selections
2681 .iter()
2682 .map(|selection| {
2683 let start_point = selection.start.to_point(&buffer);
2684 let mut indent = buffer.indent_size_for_line(start_point.row);
2685 indent.len = cmp::min(indent.len, start_point.column);
2686 let start = selection.start;
2687 let end = selection.end;
2688 let is_cursor = start == end;
2689 let language_scope = buffer.language_scope_at(start);
2690 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2691 &language_scope
2692 {
2693 let leading_whitespace_len = buffer
2694 .reversed_chars_at(start)
2695 .take_while(|c| c.is_whitespace() && *c != '\n')
2696 .map(|c| c.len_utf8())
2697 .sum::<usize>();
2698
2699 let trailing_whitespace_len = buffer
2700 .chars_at(end)
2701 .take_while(|c| c.is_whitespace() && *c != '\n')
2702 .map(|c| c.len_utf8())
2703 .sum::<usize>();
2704
2705 let insert_extra_newline =
2706 language.brackets().any(|(pair, enabled)| {
2707 let pair_start = pair.start.trim_end();
2708 let pair_end = pair.end.trim_start();
2709
2710 enabled
2711 && pair.newline
2712 && buffer.contains_str_at(
2713 end + trailing_whitespace_len,
2714 pair_end,
2715 )
2716 && buffer.contains_str_at(
2717 (start - leading_whitespace_len)
2718 .saturating_sub(pair_start.len()),
2719 pair_start,
2720 )
2721 });
2722 // Comment extension on newline is allowed only for cursor selections
2723 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2724 let is_comment_extension_enabled =
2725 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2726 is_cursor && is_comment_extension_enabled
2727 });
2728 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2729 let max_len_of_delimiter =
2730 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2731 let (snapshot, range) =
2732 buffer.buffer_line_for_row(start_point.row)?;
2733
2734 let mut index_of_first_non_whitespace = 0;
2735 let comment_candidate = snapshot
2736 .chars_for_range(range)
2737 .skip_while(|c| {
2738 let should_skip = c.is_whitespace();
2739 if should_skip {
2740 index_of_first_non_whitespace += 1;
2741 }
2742 should_skip
2743 })
2744 .take(max_len_of_delimiter)
2745 .collect::<String>();
2746 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2747 comment_candidate.starts_with(comment_prefix.as_ref())
2748 })?;
2749 let cursor_is_placed_after_comment_marker =
2750 index_of_first_non_whitespace + comment_prefix.len()
2751 <= start_point.column as usize;
2752 if cursor_is_placed_after_comment_marker {
2753 Some(comment_prefix.clone())
2754 } else {
2755 None
2756 }
2757 };
2758 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2759 get_comment_delimiter(delimiters)
2760 } else {
2761 None
2762 };
2763 (comment_delimiter, insert_extra_newline)
2764 } else {
2765 (None, false)
2766 };
2767
2768 let capacity_for_delimiter = comment_delimiter
2769 .as_deref()
2770 .map(str::len)
2771 .unwrap_or_default();
2772 let mut new_text =
2773 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2774 new_text.push_str("\n");
2775 new_text.extend(indent.chars());
2776 if let Some(delimiter) = &comment_delimiter {
2777 new_text.push_str(&delimiter);
2778 }
2779 if insert_extra_newline {
2780 new_text = new_text.repeat(2);
2781 }
2782
2783 let anchor = buffer.anchor_after(end);
2784 let new_selection = selection.map(|_| anchor);
2785 (
2786 (start..end, new_text),
2787 (insert_extra_newline, new_selection),
2788 )
2789 })
2790 .unzip()
2791 };
2792
2793 this.edit_with_autoindent(edits, cx);
2794 let buffer = this.buffer.read(cx).snapshot(cx);
2795 let new_selections = selection_fixup_info
2796 .into_iter()
2797 .map(|(extra_newline_inserted, new_selection)| {
2798 let mut cursor = new_selection.end.to_point(&buffer);
2799 if extra_newline_inserted {
2800 cursor.row -= 1;
2801 cursor.column = buffer.line_len(cursor.row);
2802 }
2803 new_selection.map(|_| cursor)
2804 })
2805 .collect();
2806
2807 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2808 this.refresh_copilot_suggestions(true, cx);
2809 });
2810 }
2811
2812 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2813 let buffer = self.buffer.read(cx);
2814 let snapshot = buffer.snapshot(cx);
2815
2816 let mut edits = Vec::new();
2817 let mut rows = Vec::new();
2818
2819 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2820 let cursor = selection.head();
2821 let row = cursor.row;
2822
2823 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2824
2825 let newline = "\n".to_string();
2826 edits.push((start_of_line..start_of_line, newline));
2827
2828 rows.push(row + rows_inserted as u32);
2829 }
2830
2831 self.transact(cx, |editor, cx| {
2832 editor.edit(edits, cx);
2833
2834 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2835 let mut index = 0;
2836 s.move_cursors_with(|map, _, _| {
2837 let row = rows[index];
2838 index += 1;
2839
2840 let point = Point::new(row, 0);
2841 let boundary = map.next_line_boundary(point).1;
2842 let clipped = map.clip_point(boundary, Bias::Left);
2843
2844 (clipped, SelectionGoal::None)
2845 });
2846 });
2847
2848 let mut indent_edits = Vec::new();
2849 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2850 for row in rows {
2851 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2852 for (row, indent) in indents {
2853 if indent.len == 0 {
2854 continue;
2855 }
2856
2857 let text = match indent.kind {
2858 IndentKind::Space => " ".repeat(indent.len as usize),
2859 IndentKind::Tab => "\t".repeat(indent.len as usize),
2860 };
2861 let point = Point::new(row, 0);
2862 indent_edits.push((point..point, text));
2863 }
2864 }
2865 editor.edit(indent_edits, cx);
2866 });
2867 }
2868
2869 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2870 let buffer = self.buffer.read(cx);
2871 let snapshot = buffer.snapshot(cx);
2872
2873 let mut edits = Vec::new();
2874 let mut rows = Vec::new();
2875 let mut rows_inserted = 0;
2876
2877 for selection in self.selections.all_adjusted(cx) {
2878 let cursor = selection.head();
2879 let row = cursor.row;
2880
2881 let point = Point::new(row + 1, 0);
2882 let start_of_line = snapshot.clip_point(point, Bias::Left);
2883
2884 let newline = "\n".to_string();
2885 edits.push((start_of_line..start_of_line, newline));
2886
2887 rows_inserted += 1;
2888 rows.push(row + rows_inserted);
2889 }
2890
2891 self.transact(cx, |editor, cx| {
2892 editor.edit(edits, cx);
2893
2894 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2895 let mut index = 0;
2896 s.move_cursors_with(|map, _, _| {
2897 let row = rows[index];
2898 index += 1;
2899
2900 let point = Point::new(row, 0);
2901 let boundary = map.next_line_boundary(point).1;
2902 let clipped = map.clip_point(boundary, Bias::Left);
2903
2904 (clipped, SelectionGoal::None)
2905 });
2906 });
2907
2908 let mut indent_edits = Vec::new();
2909 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2910 for row in rows {
2911 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2912 for (row, indent) in indents {
2913 if indent.len == 0 {
2914 continue;
2915 }
2916
2917 let text = match indent.kind {
2918 IndentKind::Space => " ".repeat(indent.len as usize),
2919 IndentKind::Tab => "\t".repeat(indent.len as usize),
2920 };
2921 let point = Point::new(row, 0);
2922 indent_edits.push((point..point, text));
2923 }
2924 }
2925 editor.edit(indent_edits, cx);
2926 });
2927 }
2928
2929 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2930 self.insert_with_autoindent_mode(
2931 text,
2932 Some(AutoindentMode::Block {
2933 original_indent_columns: Vec::new(),
2934 }),
2935 cx,
2936 );
2937 }
2938
2939 fn insert_with_autoindent_mode(
2940 &mut self,
2941 text: &str,
2942 autoindent_mode: Option<AutoindentMode>,
2943 cx: &mut ViewContext<Self>,
2944 ) {
2945 if self.read_only(cx) {
2946 return;
2947 }
2948
2949 let text: Arc<str> = text.into();
2950 self.transact(cx, |this, cx| {
2951 let old_selections = this.selections.all_adjusted(cx);
2952 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2953 let anchors = {
2954 let snapshot = buffer.read(cx);
2955 old_selections
2956 .iter()
2957 .map(|s| {
2958 let anchor = snapshot.anchor_after(s.head());
2959 s.map(|_| anchor)
2960 })
2961 .collect::<Vec<_>>()
2962 };
2963 buffer.edit(
2964 old_selections
2965 .iter()
2966 .map(|s| (s.start..s.end, text.clone())),
2967 autoindent_mode,
2968 cx,
2969 );
2970 anchors
2971 });
2972
2973 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2974 s.select_anchors(selection_anchors);
2975 })
2976 });
2977 }
2978
2979 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2980 if !EditorSettings::get_global(cx).show_completions_on_input {
2981 return;
2982 }
2983
2984 let selection = self.selections.newest_anchor();
2985 if self
2986 .buffer
2987 .read(cx)
2988 .is_completion_trigger(selection.head(), text, cx)
2989 {
2990 self.show_completions(&ShowCompletions, cx);
2991 } else {
2992 self.hide_context_menu(cx);
2993 }
2994 }
2995
2996 /// If any empty selections is touching the start of its innermost containing autoclose
2997 /// region, expand it to select the brackets.
2998 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2999 let selections = self.selections.all::<usize>(cx);
3000 let buffer = self.buffer.read(cx).read(cx);
3001 let mut new_selections = Vec::new();
3002 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
3003 if let (Some(region), true) = (region, selection.is_empty()) {
3004 let mut range = region.range.to_offset(&buffer);
3005 if selection.start == range.start {
3006 if range.start >= region.pair.start.len() {
3007 range.start -= region.pair.start.len();
3008 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3009 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3010 range.end += region.pair.end.len();
3011 selection.start = range.start;
3012 selection.end = range.end;
3013 }
3014 }
3015 }
3016 }
3017 }
3018 new_selections.push(selection);
3019 }
3020
3021 drop(buffer);
3022 self.change_selections(None, cx, |selections| selections.select(new_selections));
3023 }
3024
3025 /// Iterate the given selections, and for each one, find the smallest surrounding
3026 /// autoclose region. This uses the ordering of the selections and the autoclose
3027 /// regions to avoid repeated comparisons.
3028 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3029 &'a self,
3030 selections: impl IntoIterator<Item = Selection<D>>,
3031 buffer: &'a MultiBufferSnapshot,
3032 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3033 let mut i = 0;
3034 let mut regions = self.autoclose_regions.as_slice();
3035 selections.into_iter().map(move |selection| {
3036 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3037
3038 let mut enclosing = None;
3039 while let Some(pair_state) = regions.get(i) {
3040 if pair_state.range.end.to_offset(buffer) < range.start {
3041 regions = ®ions[i + 1..];
3042 i = 0;
3043 } else if pair_state.range.start.to_offset(buffer) > range.end {
3044 break;
3045 } else {
3046 if pair_state.selection_id == selection.id {
3047 enclosing = Some(pair_state);
3048 }
3049 i += 1;
3050 }
3051 }
3052
3053 (selection.clone(), enclosing)
3054 })
3055 }
3056
3057 /// Remove any autoclose regions that no longer contain their selection.
3058 fn invalidate_autoclose_regions(
3059 &mut self,
3060 mut selections: &[Selection<Anchor>],
3061 buffer: &MultiBufferSnapshot,
3062 ) {
3063 self.autoclose_regions.retain(|state| {
3064 let mut i = 0;
3065 while let Some(selection) = selections.get(i) {
3066 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3067 selections = &selections[1..];
3068 continue;
3069 }
3070 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3071 break;
3072 }
3073 if selection.id == state.selection_id {
3074 return true;
3075 } else {
3076 i += 1;
3077 }
3078 }
3079 false
3080 });
3081 }
3082
3083 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3084 let offset = position.to_offset(buffer);
3085 let (word_range, kind) = buffer.surrounding_word(offset);
3086 if offset > word_range.start && kind == Some(CharKind::Word) {
3087 Some(
3088 buffer
3089 .text_for_range(word_range.start..offset)
3090 .collect::<String>(),
3091 )
3092 } else {
3093 None
3094 }
3095 }
3096
3097 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3098 self.refresh_inlay_hints(
3099 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3100 cx,
3101 );
3102 }
3103
3104 pub fn inlay_hints_enabled(&self) -> bool {
3105 self.inlay_hint_cache.enabled
3106 }
3107
3108 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3109 if self.project.is_none() || self.mode != EditorMode::Full {
3110 return;
3111 }
3112
3113 let reason_description = reason.description();
3114 let ignore_debounce = matches!(
3115 reason,
3116 InlayHintRefreshReason::SettingsChange(_)
3117 | InlayHintRefreshReason::Toggle(_)
3118 | InlayHintRefreshReason::ExcerptsRemoved(_)
3119 );
3120 let (invalidate_cache, required_languages) = match reason {
3121 InlayHintRefreshReason::Toggle(enabled) => {
3122 self.inlay_hint_cache.enabled = enabled;
3123 if enabled {
3124 (InvalidationStrategy::RefreshRequested, None)
3125 } else {
3126 self.inlay_hint_cache.clear();
3127 self.splice_inlays(
3128 self.visible_inlay_hints(cx)
3129 .iter()
3130 .map(|inlay| inlay.id)
3131 .collect(),
3132 Vec::new(),
3133 cx,
3134 );
3135 return;
3136 }
3137 }
3138 InlayHintRefreshReason::SettingsChange(new_settings) => {
3139 match self.inlay_hint_cache.update_settings(
3140 &self.buffer,
3141 new_settings,
3142 self.visible_inlay_hints(cx),
3143 cx,
3144 ) {
3145 ControlFlow::Break(Some(InlaySplice {
3146 to_remove,
3147 to_insert,
3148 })) => {
3149 self.splice_inlays(to_remove, to_insert, cx);
3150 return;
3151 }
3152 ControlFlow::Break(None) => return,
3153 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3154 }
3155 }
3156 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3157 if let Some(InlaySplice {
3158 to_remove,
3159 to_insert,
3160 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3161 {
3162 self.splice_inlays(to_remove, to_insert, cx);
3163 }
3164 return;
3165 }
3166 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3167 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3168 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3169 }
3170 InlayHintRefreshReason::RefreshRequested => {
3171 (InvalidationStrategy::RefreshRequested, None)
3172 }
3173 };
3174
3175 if let Some(InlaySplice {
3176 to_remove,
3177 to_insert,
3178 }) = self.inlay_hint_cache.spawn_hint_refresh(
3179 reason_description,
3180 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3181 invalidate_cache,
3182 ignore_debounce,
3183 cx,
3184 ) {
3185 self.splice_inlays(to_remove, to_insert, cx);
3186 }
3187 }
3188
3189 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3190 self.display_map
3191 .read(cx)
3192 .current_inlays()
3193 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3194 .cloned()
3195 .collect()
3196 }
3197
3198 pub fn excerpts_for_inlay_hints_query(
3199 &self,
3200 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3201 cx: &mut ViewContext<Editor>,
3202 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3203 let Some(project) = self.project.as_ref() else {
3204 return HashMap::default();
3205 };
3206 let project = project.read(cx);
3207 let multi_buffer = self.buffer().read(cx);
3208 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3209 let multi_buffer_visible_start = self
3210 .scroll_manager
3211 .anchor()
3212 .anchor
3213 .to_point(&multi_buffer_snapshot);
3214 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3215 multi_buffer_visible_start
3216 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3217 Bias::Left,
3218 );
3219 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3220 multi_buffer
3221 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3222 .into_iter()
3223 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3224 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3225 let buffer = buffer_handle.read(cx);
3226 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3227 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3228 let worktree_entry = buffer_worktree
3229 .read(cx)
3230 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3231 if worktree_entry.is_ignored {
3232 return None;
3233 }
3234
3235 let language = buffer.language()?;
3236 if let Some(restrict_to_languages) = restrict_to_languages {
3237 if !restrict_to_languages.contains(language) {
3238 return None;
3239 }
3240 }
3241 Some((
3242 excerpt_id,
3243 (
3244 buffer_handle,
3245 buffer.version().clone(),
3246 excerpt_visible_range,
3247 ),
3248 ))
3249 })
3250 .collect()
3251 }
3252
3253 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3254 TextLayoutDetails {
3255 text_system: cx.text_system().clone(),
3256 editor_style: self.style.clone().unwrap(),
3257 rem_size: cx.rem_size(),
3258 scroll_anchor: self.scroll_manager.anchor(),
3259 visible_rows: self.visible_line_count(),
3260 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3261 }
3262 }
3263
3264 fn splice_inlays(
3265 &self,
3266 to_remove: Vec<InlayId>,
3267 to_insert: Vec<Inlay>,
3268 cx: &mut ViewContext<Self>,
3269 ) {
3270 self.display_map.update(cx, |display_map, cx| {
3271 display_map.splice_inlays(to_remove, to_insert, cx);
3272 });
3273 cx.notify();
3274 }
3275
3276 fn trigger_on_type_formatting(
3277 &self,
3278 input: String,
3279 cx: &mut ViewContext<Self>,
3280 ) -> Option<Task<Result<()>>> {
3281 if input.len() != 1 {
3282 return None;
3283 }
3284
3285 let project = self.project.as_ref()?;
3286 let position = self.selections.newest_anchor().head();
3287 let (buffer, buffer_position) = self
3288 .buffer
3289 .read(cx)
3290 .text_anchor_for_position(position, cx)?;
3291
3292 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3293 // hence we do LSP request & edit on host side only — add formats to host's history.
3294 let push_to_lsp_host_history = true;
3295 // If this is not the host, append its history with new edits.
3296 let push_to_client_history = project.read(cx).is_remote();
3297
3298 let on_type_formatting = project.update(cx, |project, cx| {
3299 project.on_type_format(
3300 buffer.clone(),
3301 buffer_position,
3302 input,
3303 push_to_lsp_host_history,
3304 cx,
3305 )
3306 });
3307 Some(cx.spawn(|editor, mut cx| async move {
3308 if let Some(transaction) = on_type_formatting.await? {
3309 if push_to_client_history {
3310 buffer
3311 .update(&mut cx, |buffer, _| {
3312 buffer.push_transaction(transaction, Instant::now());
3313 })
3314 .ok();
3315 }
3316 editor.update(&mut cx, |editor, cx| {
3317 editor.refresh_document_highlights(cx);
3318 })?;
3319 }
3320 Ok(())
3321 }))
3322 }
3323
3324 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3325 if self.pending_rename.is_some() {
3326 return;
3327 }
3328
3329 let Some(provider) = self.completion_provider.as_ref() else {
3330 return;
3331 };
3332
3333 let position = self.selections.newest_anchor().head();
3334 let (buffer, buffer_position) =
3335 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3336 output
3337 } else {
3338 return;
3339 };
3340
3341 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3342 let completions = provider.completions(&buffer, buffer_position, cx);
3343
3344 let id = post_inc(&mut self.next_completion_id);
3345 let task = cx.spawn(|this, mut cx| {
3346 async move {
3347 let completions = completions.await.log_err();
3348 let menu = if let Some(completions) = completions {
3349 let mut menu = CompletionsMenu {
3350 id,
3351 initial_position: position,
3352 match_candidates: completions
3353 .iter()
3354 .enumerate()
3355 .map(|(id, completion)| {
3356 StringMatchCandidate::new(
3357 id,
3358 completion.label.text[completion.label.filter_range.clone()]
3359 .into(),
3360 )
3361 })
3362 .collect(),
3363 buffer,
3364 completions: Arc::new(RwLock::new(completions.into())),
3365 matches: Vec::new().into(),
3366 selected_item: 0,
3367 scroll_handle: UniformListScrollHandle::new(),
3368 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3369 DebouncedDelay::new(),
3370 )),
3371 };
3372 menu.filter(query.as_deref(), cx.background_executor().clone())
3373 .await;
3374
3375 if menu.matches.is_empty() {
3376 None
3377 } else {
3378 this.update(&mut cx, |editor, cx| {
3379 let completions = menu.completions.clone();
3380 let matches = menu.matches.clone();
3381
3382 let delay_ms = EditorSettings::get_global(cx)
3383 .completion_documentation_secondary_query_debounce;
3384 let delay = Duration::from_millis(delay_ms);
3385
3386 editor
3387 .completion_documentation_pre_resolve_debounce
3388 .fire_new(delay, cx, |editor, cx| {
3389 CompletionsMenu::pre_resolve_completion_documentation(
3390 completions,
3391 matches,
3392 editor,
3393 cx,
3394 )
3395 });
3396 })
3397 .ok();
3398 Some(menu)
3399 }
3400 } else {
3401 None
3402 };
3403
3404 this.update(&mut cx, |this, cx| {
3405 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3406
3407 let mut context_menu = this.context_menu.write();
3408 match context_menu.as_ref() {
3409 None => {}
3410
3411 Some(ContextMenu::Completions(prev_menu)) => {
3412 if prev_menu.id > id {
3413 return;
3414 }
3415 }
3416
3417 _ => return,
3418 }
3419
3420 if this.focus_handle.is_focused(cx) && menu.is_some() {
3421 let menu = menu.unwrap();
3422 *context_menu = Some(ContextMenu::Completions(menu));
3423 drop(context_menu);
3424 this.discard_copilot_suggestion(cx);
3425 cx.notify();
3426 } else if this.completion_tasks.len() <= 1 {
3427 // If there are no more completion tasks and the last menu was
3428 // empty, we should hide it. If it was already hidden, we should
3429 // also show the copilot suggestion when available.
3430 drop(context_menu);
3431 if this.hide_context_menu(cx).is_none() {
3432 this.update_visible_copilot_suggestion(cx);
3433 }
3434 }
3435 })?;
3436
3437 Ok::<_, anyhow::Error>(())
3438 }
3439 .log_err()
3440 });
3441
3442 self.completion_tasks.push((id, task));
3443 }
3444
3445 pub fn confirm_completion(
3446 &mut self,
3447 action: &ConfirmCompletion,
3448 cx: &mut ViewContext<Self>,
3449 ) -> Option<Task<Result<()>>> {
3450 use language::ToOffset as _;
3451
3452 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3453 menu
3454 } else {
3455 return None;
3456 };
3457
3458 let mat = completions_menu
3459 .matches
3460 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3461 let buffer_handle = completions_menu.buffer;
3462 let completions = completions_menu.completions.read();
3463 let completion = completions.get(mat.candidate_id)?;
3464 cx.stop_propagation();
3465
3466 let snippet;
3467 let text;
3468 if completion.is_snippet() {
3469 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3470 text = snippet.as_ref().unwrap().text.clone();
3471 } else {
3472 snippet = None;
3473 text = completion.new_text.clone();
3474 };
3475 let selections = self.selections.all::<usize>(cx);
3476 let buffer = buffer_handle.read(cx);
3477 let old_range = completion.old_range.to_offset(buffer);
3478 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3479
3480 let newest_selection = self.selections.newest_anchor();
3481 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3482 return None;
3483 }
3484
3485 let lookbehind = newest_selection
3486 .start
3487 .text_anchor
3488 .to_offset(buffer)
3489 .saturating_sub(old_range.start);
3490 let lookahead = old_range
3491 .end
3492 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3493 let mut common_prefix_len = old_text
3494 .bytes()
3495 .zip(text.bytes())
3496 .take_while(|(a, b)| a == b)
3497 .count();
3498
3499 let snapshot = self.buffer.read(cx).snapshot(cx);
3500 let mut range_to_replace: Option<Range<isize>> = None;
3501 let mut ranges = Vec::new();
3502 for selection in &selections {
3503 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3504 let start = selection.start.saturating_sub(lookbehind);
3505 let end = selection.end + lookahead;
3506 if selection.id == newest_selection.id {
3507 range_to_replace = Some(
3508 ((start + common_prefix_len) as isize - selection.start as isize)
3509 ..(end as isize - selection.start as isize),
3510 );
3511 }
3512 ranges.push(start + common_prefix_len..end);
3513 } else {
3514 common_prefix_len = 0;
3515 ranges.clear();
3516 ranges.extend(selections.iter().map(|s| {
3517 if s.id == newest_selection.id {
3518 range_to_replace = Some(
3519 old_range.start.to_offset_utf16(&snapshot).0 as isize
3520 - selection.start as isize
3521 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3522 - selection.start as isize,
3523 );
3524 old_range.clone()
3525 } else {
3526 s.start..s.end
3527 }
3528 }));
3529 break;
3530 }
3531 }
3532 let text = &text[common_prefix_len..];
3533
3534 cx.emit(EditorEvent::InputHandled {
3535 utf16_range_to_replace: range_to_replace,
3536 text: text.into(),
3537 });
3538
3539 self.transact(cx, |this, cx| {
3540 if let Some(mut snippet) = snippet {
3541 snippet.text = text.to_string();
3542 for tabstop in snippet.tabstops.iter_mut().flatten() {
3543 tabstop.start -= common_prefix_len as isize;
3544 tabstop.end -= common_prefix_len as isize;
3545 }
3546
3547 this.insert_snippet(&ranges, snippet, cx).log_err();
3548 } else {
3549 this.buffer.update(cx, |buffer, cx| {
3550 buffer.edit(
3551 ranges.iter().map(|range| (range.clone(), text)),
3552 this.autoindent_mode.clone(),
3553 cx,
3554 );
3555 });
3556 }
3557
3558 this.refresh_copilot_suggestions(true, cx);
3559 });
3560
3561 let provider = self.completion_provider.as_ref()?;
3562 let apply_edits = provider.apply_additional_edits_for_completion(
3563 buffer_handle,
3564 completion.clone(),
3565 true,
3566 cx,
3567 );
3568 Some(cx.foreground_executor().spawn(async move {
3569 apply_edits.await?;
3570 Ok(())
3571 }))
3572 }
3573
3574 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3575 let mut context_menu = self.context_menu.write();
3576 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3577 *context_menu = None;
3578 cx.notify();
3579 return;
3580 }
3581 drop(context_menu);
3582
3583 let deployed_from_indicator = action.deployed_from_indicator;
3584 let mut task = self.code_actions_task.take();
3585 cx.spawn(|this, mut cx| async move {
3586 while let Some(prev_task) = task {
3587 prev_task.await;
3588 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3589 }
3590
3591 this.update(&mut cx, |this, cx| {
3592 if this.focus_handle.is_focused(cx) {
3593 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3594 this.completion_tasks.clear();
3595 this.discard_copilot_suggestion(cx);
3596 *this.context_menu.write() =
3597 Some(ContextMenu::CodeActions(CodeActionsMenu {
3598 buffer,
3599 actions,
3600 selected_item: Default::default(),
3601 scroll_handle: UniformListScrollHandle::default(),
3602 deployed_from_indicator,
3603 }));
3604 cx.notify();
3605 }
3606 }
3607 })?;
3608
3609 Ok::<_, anyhow::Error>(())
3610 })
3611 .detach_and_log_err(cx);
3612 }
3613
3614 pub fn confirm_code_action(
3615 &mut self,
3616 action: &ConfirmCodeAction,
3617 cx: &mut ViewContext<Self>,
3618 ) -> Option<Task<Result<()>>> {
3619 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3620 menu
3621 } else {
3622 return None;
3623 };
3624 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3625 let action = actions_menu.actions.get(action_ix)?.clone();
3626 let title = action.lsp_action.title.clone();
3627 let buffer = actions_menu.buffer;
3628 let workspace = self.workspace()?;
3629
3630 let apply_code_actions = workspace
3631 .read(cx)
3632 .project()
3633 .clone()
3634 .update(cx, |project, cx| {
3635 project.apply_code_action(buffer, action, true, cx)
3636 });
3637 let workspace = workspace.downgrade();
3638 Some(cx.spawn(|editor, cx| async move {
3639 let project_transaction = apply_code_actions.await?;
3640 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3641 }))
3642 }
3643
3644 async fn open_project_transaction(
3645 this: &WeakView<Editor>,
3646 workspace: WeakView<Workspace>,
3647 transaction: ProjectTransaction,
3648 title: String,
3649 mut cx: AsyncWindowContext,
3650 ) -> Result<()> {
3651 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3652
3653 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3654 cx.update(|cx| {
3655 entries.sort_unstable_by_key(|(buffer, _)| {
3656 buffer.read(cx).file().map(|f| f.path().clone())
3657 });
3658 })?;
3659
3660 // If the project transaction's edits are all contained within this editor, then
3661 // avoid opening a new editor to display them.
3662
3663 if let Some((buffer, transaction)) = entries.first() {
3664 if entries.len() == 1 {
3665 let excerpt = this.update(&mut cx, |editor, cx| {
3666 editor
3667 .buffer()
3668 .read(cx)
3669 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3670 })?;
3671 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3672 if excerpted_buffer == *buffer {
3673 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3674 let excerpt_range = excerpt_range.to_offset(buffer);
3675 buffer
3676 .edited_ranges_for_transaction::<usize>(transaction)
3677 .all(|range| {
3678 excerpt_range.start <= range.start
3679 && excerpt_range.end >= range.end
3680 })
3681 })?;
3682
3683 if all_edits_within_excerpt {
3684 return Ok(());
3685 }
3686 }
3687 }
3688 }
3689 } else {
3690 return Ok(());
3691 }
3692
3693 let mut ranges_to_highlight = Vec::new();
3694 let excerpt_buffer = cx.new_model(|cx| {
3695 let mut multibuffer =
3696 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3697 for (buffer_handle, transaction) in &entries {
3698 let buffer = buffer_handle.read(cx);
3699 ranges_to_highlight.extend(
3700 multibuffer.push_excerpts_with_context_lines(
3701 buffer_handle.clone(),
3702 buffer
3703 .edited_ranges_for_transaction::<usize>(transaction)
3704 .collect(),
3705 1,
3706 cx,
3707 ),
3708 );
3709 }
3710 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3711 multibuffer
3712 })?;
3713
3714 workspace.update(&mut cx, |workspace, cx| {
3715 let project = workspace.project().clone();
3716 let editor =
3717 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3718 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3719 editor.update(cx, |editor, cx| {
3720 editor.highlight_background::<Self>(
3721 ranges_to_highlight,
3722 |theme| theme.editor_highlighted_line_background,
3723 cx,
3724 );
3725 });
3726 })?;
3727
3728 Ok(())
3729 }
3730
3731 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3732 let project = self.project.clone()?;
3733 let buffer = self.buffer.read(cx);
3734 let newest_selection = self.selections.newest_anchor().clone();
3735 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3736 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3737 if start_buffer != end_buffer {
3738 return None;
3739 }
3740
3741 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3742 cx.background_executor()
3743 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3744 .await;
3745
3746 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3747 project.code_actions(&start_buffer, start..end, cx)
3748 }) {
3749 code_actions.await.log_err()
3750 } else {
3751 None
3752 };
3753
3754 this.update(&mut cx, |this, cx| {
3755 this.available_code_actions = actions.and_then(|actions| {
3756 if actions.is_empty() {
3757 None
3758 } else {
3759 Some((start_buffer, actions.into()))
3760 }
3761 });
3762 cx.notify();
3763 })
3764 .log_err();
3765 }));
3766 None
3767 }
3768
3769 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3770 if self.pending_rename.is_some() {
3771 return None;
3772 }
3773
3774 let project = self.project.clone()?;
3775 let buffer = self.buffer.read(cx);
3776 let newest_selection = self.selections.newest_anchor().clone();
3777 let cursor_position = newest_selection.head();
3778 let (cursor_buffer, cursor_buffer_position) =
3779 buffer.text_anchor_for_position(cursor_position, cx)?;
3780 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3781 if cursor_buffer != tail_buffer {
3782 return None;
3783 }
3784
3785 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3786 cx.background_executor()
3787 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3788 .await;
3789
3790 let highlights = if let Some(highlights) = project
3791 .update(&mut cx, |project, cx| {
3792 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3793 })
3794 .log_err()
3795 {
3796 highlights.await.log_err()
3797 } else {
3798 None
3799 };
3800
3801 if let Some(highlights) = highlights {
3802 this.update(&mut cx, |this, cx| {
3803 if this.pending_rename.is_some() {
3804 return;
3805 }
3806
3807 let buffer_id = cursor_position.buffer_id;
3808 let buffer = this.buffer.read(cx);
3809 if !buffer
3810 .text_anchor_for_position(cursor_position, cx)
3811 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3812 {
3813 return;
3814 }
3815
3816 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3817 let mut write_ranges = Vec::new();
3818 let mut read_ranges = Vec::new();
3819 for highlight in highlights {
3820 for (excerpt_id, excerpt_range) in
3821 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3822 {
3823 let start = highlight
3824 .range
3825 .start
3826 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3827 let end = highlight
3828 .range
3829 .end
3830 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3831 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3832 continue;
3833 }
3834
3835 let range = Anchor {
3836 buffer_id,
3837 excerpt_id: excerpt_id,
3838 text_anchor: start,
3839 }..Anchor {
3840 buffer_id,
3841 excerpt_id,
3842 text_anchor: end,
3843 };
3844 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3845 write_ranges.push(range);
3846 } else {
3847 read_ranges.push(range);
3848 }
3849 }
3850 }
3851
3852 this.highlight_background::<DocumentHighlightRead>(
3853 read_ranges,
3854 |theme| theme.editor_document_highlight_read_background,
3855 cx,
3856 );
3857 this.highlight_background::<DocumentHighlightWrite>(
3858 write_ranges,
3859 |theme| theme.editor_document_highlight_write_background,
3860 cx,
3861 );
3862 cx.notify();
3863 })
3864 .log_err();
3865 }
3866 }));
3867 None
3868 }
3869
3870 fn refresh_copilot_suggestions(
3871 &mut self,
3872 debounce: bool,
3873 cx: &mut ViewContext<Self>,
3874 ) -> Option<()> {
3875 let copilot = Copilot::global(cx)?;
3876 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3877 self.clear_copilot_suggestions(cx);
3878 return None;
3879 }
3880 self.update_visible_copilot_suggestion(cx);
3881
3882 let snapshot = self.buffer.read(cx).snapshot(cx);
3883 let cursor = self.selections.newest_anchor().head();
3884 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3885 self.clear_copilot_suggestions(cx);
3886 return None;
3887 }
3888
3889 let (buffer, buffer_position) =
3890 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3891 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3892 if debounce {
3893 cx.background_executor()
3894 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3895 .await;
3896 }
3897
3898 let completions = copilot
3899 .update(&mut cx, |copilot, cx| {
3900 copilot.completions(&buffer, buffer_position, cx)
3901 })
3902 .log_err()
3903 .unwrap_or(Task::ready(Ok(Vec::new())))
3904 .await
3905 .log_err()
3906 .into_iter()
3907 .flatten()
3908 .collect_vec();
3909
3910 this.update(&mut cx, |this, cx| {
3911 if !completions.is_empty() {
3912 this.copilot_state.cycled = false;
3913 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3914 this.copilot_state.completions.clear();
3915 this.copilot_state.active_completion_index = 0;
3916 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3917 for completion in completions {
3918 this.copilot_state.push_completion(completion);
3919 }
3920 this.update_visible_copilot_suggestion(cx);
3921 }
3922 })
3923 .log_err()?;
3924 Some(())
3925 });
3926
3927 Some(())
3928 }
3929
3930 fn cycle_copilot_suggestions(
3931 &mut self,
3932 direction: Direction,
3933 cx: &mut ViewContext<Self>,
3934 ) -> Option<()> {
3935 let copilot = Copilot::global(cx)?;
3936 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3937 return None;
3938 }
3939
3940 if self.copilot_state.cycled {
3941 self.copilot_state.cycle_completions(direction);
3942 self.update_visible_copilot_suggestion(cx);
3943 } else {
3944 let cursor = self.selections.newest_anchor().head();
3945 let (buffer, buffer_position) =
3946 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3947 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3948 let completions = copilot
3949 .update(&mut cx, |copilot, cx| {
3950 copilot.completions_cycling(&buffer, buffer_position, cx)
3951 })
3952 .log_err()?
3953 .await;
3954
3955 this.update(&mut cx, |this, cx| {
3956 this.copilot_state.cycled = true;
3957 for completion in completions.log_err().into_iter().flatten() {
3958 this.copilot_state.push_completion(completion);
3959 }
3960 this.copilot_state.cycle_completions(direction);
3961 this.update_visible_copilot_suggestion(cx);
3962 })
3963 .log_err()?;
3964
3965 Some(())
3966 });
3967 }
3968
3969 Some(())
3970 }
3971
3972 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3973 if !self.has_active_copilot_suggestion(cx) {
3974 self.refresh_copilot_suggestions(false, cx);
3975 return;
3976 }
3977
3978 self.update_visible_copilot_suggestion(cx);
3979 }
3980
3981 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3982 self.show_cursor_names(cx);
3983 }
3984
3985 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3986 self.show_cursor_names = true;
3987 cx.notify();
3988 cx.spawn(|this, mut cx| async move {
3989 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3990 this.update(&mut cx, |this, cx| {
3991 this.show_cursor_names = false;
3992 cx.notify()
3993 })
3994 .ok()
3995 })
3996 .detach();
3997 }
3998
3999 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
4000 if self.has_active_copilot_suggestion(cx) {
4001 self.cycle_copilot_suggestions(Direction::Next, cx);
4002 } else {
4003 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4004 if is_copilot_disabled {
4005 cx.propagate();
4006 }
4007 }
4008 }
4009
4010 fn previous_copilot_suggestion(
4011 &mut self,
4012 _: &copilot::PreviousSuggestion,
4013 cx: &mut ViewContext<Self>,
4014 ) {
4015 if self.has_active_copilot_suggestion(cx) {
4016 self.cycle_copilot_suggestions(Direction::Prev, cx);
4017 } else {
4018 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4019 if is_copilot_disabled {
4020 cx.propagate();
4021 }
4022 }
4023 }
4024
4025 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4026 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4027 if let Some((copilot, completion)) =
4028 Copilot::global(cx).zip(self.copilot_state.active_completion())
4029 {
4030 copilot
4031 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4032 .detach_and_log_err(cx);
4033
4034 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4035 }
4036 cx.emit(EditorEvent::InputHandled {
4037 utf16_range_to_replace: None,
4038 text: suggestion.text.to_string().into(),
4039 });
4040 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4041 cx.notify();
4042 true
4043 } else {
4044 false
4045 }
4046 }
4047
4048 fn accept_partial_copilot_suggestion(
4049 &mut self,
4050 _: &AcceptPartialCopilotSuggestion,
4051 cx: &mut ViewContext<Self>,
4052 ) {
4053 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4054 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4055 let mut partial_suggestion = suggestion
4056 .text
4057 .chars()
4058 .by_ref()
4059 .take_while(|c| c.is_alphabetic())
4060 .collect::<String>();
4061 if partial_suggestion.is_empty() {
4062 partial_suggestion = suggestion
4063 .text
4064 .chars()
4065 .by_ref()
4066 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4067 .collect::<String>();
4068 }
4069
4070 cx.emit(EditorEvent::InputHandled {
4071 utf16_range_to_replace: None,
4072 text: partial_suggestion.clone().into(),
4073 });
4074 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4075 self.refresh_copilot_suggestions(true, cx);
4076 cx.notify();
4077 }
4078 }
4079 }
4080
4081 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4082 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4083 if let Some(copilot) = Copilot::global(cx) {
4084 copilot
4085 .update(cx, |copilot, cx| {
4086 copilot.discard_completions(&self.copilot_state.completions, cx)
4087 })
4088 .detach_and_log_err(cx);
4089
4090 self.report_copilot_event(None, false, cx)
4091 }
4092
4093 self.display_map.update(cx, |map, cx| {
4094 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4095 });
4096 cx.notify();
4097 true
4098 } else {
4099 false
4100 }
4101 }
4102
4103 fn is_copilot_enabled_at(
4104 &self,
4105 location: Anchor,
4106 snapshot: &MultiBufferSnapshot,
4107 cx: &mut ViewContext<Self>,
4108 ) -> bool {
4109 let file = snapshot.file_at(location);
4110 let language = snapshot.language_at(location);
4111 let settings = all_language_settings(file, cx);
4112 self.show_copilot_suggestions
4113 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4114 }
4115
4116 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4117 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4118 let buffer = self.buffer.read(cx).read(cx);
4119 suggestion.position.is_valid(&buffer)
4120 } else {
4121 false
4122 }
4123 }
4124
4125 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4126 let suggestion = self.copilot_state.suggestion.take()?;
4127 self.display_map.update(cx, |map, cx| {
4128 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4129 });
4130 let buffer = self.buffer.read(cx).read(cx);
4131
4132 if suggestion.position.is_valid(&buffer) {
4133 Some(suggestion)
4134 } else {
4135 None
4136 }
4137 }
4138
4139 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4140 let snapshot = self.buffer.read(cx).snapshot(cx);
4141 let selection = self.selections.newest_anchor();
4142 let cursor = selection.head();
4143
4144 if self.context_menu.read().is_some()
4145 || !self.completion_tasks.is_empty()
4146 || selection.start != selection.end
4147 {
4148 self.discard_copilot_suggestion(cx);
4149 } else if let Some(text) = self
4150 .copilot_state
4151 .text_for_active_completion(cursor, &snapshot)
4152 {
4153 let text = Rope::from(text);
4154 let mut to_remove = Vec::new();
4155 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4156 to_remove.push(suggestion.id);
4157 }
4158
4159 let suggestion_inlay =
4160 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4161 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4162 self.display_map.update(cx, move |map, cx| {
4163 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4164 });
4165 cx.notify();
4166 } else {
4167 self.discard_copilot_suggestion(cx);
4168 }
4169 }
4170
4171 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4172 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4173 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4174 }
4175 self.copilot_state = CopilotState::default();
4176 self.discard_copilot_suggestion(cx);
4177 }
4178
4179 pub fn render_code_actions_indicator(
4180 &self,
4181 _style: &EditorStyle,
4182 is_active: bool,
4183 cx: &mut ViewContext<Self>,
4184 ) -> Option<IconButton> {
4185 if self.available_code_actions.is_some() {
4186 Some(
4187 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4188 .icon_size(IconSize::XSmall)
4189 .size(ui::ButtonSize::None)
4190 .icon_color(Color::Muted)
4191 .selected(is_active)
4192 .on_click(cx.listener(|editor, _e, cx| {
4193 editor.toggle_code_actions(
4194 &ToggleCodeActions {
4195 deployed_from_indicator: true,
4196 },
4197 cx,
4198 );
4199 })),
4200 )
4201 } else {
4202 None
4203 }
4204 }
4205
4206 pub fn render_fold_indicators(
4207 &mut self,
4208 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4209 _style: &EditorStyle,
4210 gutter_hovered: bool,
4211 _line_height: Pixels,
4212 _gutter_margin: Pixels,
4213 cx: &mut ViewContext<Self>,
4214 ) -> Vec<Option<AnyElement>> {
4215 fold_data
4216 .iter()
4217 .enumerate()
4218 .map(|(ix, fold_data)| {
4219 fold_data
4220 .map(|(fold_status, buffer_row, active)| {
4221 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4222 IconButton::new(ix, ui::IconName::ChevronDown)
4223 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4224 FoldStatus::Folded => {
4225 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4226 }
4227 FoldStatus::Foldable => {
4228 this.fold_at(&FoldAt { buffer_row }, cx);
4229 }
4230 }))
4231 .icon_color(ui::Color::Muted)
4232 .icon_size(ui::IconSize::Small)
4233 .selected(fold_status == FoldStatus::Folded)
4234 .selected_icon(ui::IconName::ChevronRight)
4235 .size(ui::ButtonSize::None)
4236 .into_any_element()
4237 })
4238 })
4239 .flatten()
4240 })
4241 .collect()
4242 }
4243
4244 pub fn context_menu_visible(&self) -> bool {
4245 self.context_menu
4246 .read()
4247 .as_ref()
4248 .map_or(false, |menu| menu.visible())
4249 }
4250
4251 pub fn render_context_menu(
4252 &self,
4253 cursor_position: DisplayPoint,
4254 style: &EditorStyle,
4255 max_height: Pixels,
4256 cx: &mut ViewContext<Editor>,
4257 ) -> Option<(DisplayPoint, AnyElement)> {
4258 self.context_menu.read().as_ref().map(|menu| {
4259 menu.render(
4260 cursor_position,
4261 style,
4262 max_height,
4263 self.workspace.as_ref().map(|(w, _)| w.clone()),
4264 cx,
4265 )
4266 })
4267 }
4268
4269 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4270 cx.notify();
4271 self.completion_tasks.clear();
4272 let context_menu = self.context_menu.write().take();
4273 if context_menu.is_some() {
4274 self.update_visible_copilot_suggestion(cx);
4275 }
4276 context_menu
4277 }
4278
4279 pub fn insert_snippet(
4280 &mut self,
4281 insertion_ranges: &[Range<usize>],
4282 snippet: Snippet,
4283 cx: &mut ViewContext<Self>,
4284 ) -> Result<()> {
4285 let tabstops = self.buffer.update(cx, |buffer, cx| {
4286 let snippet_text: Arc<str> = snippet.text.clone().into();
4287 buffer.edit(
4288 insertion_ranges
4289 .iter()
4290 .cloned()
4291 .map(|range| (range, snippet_text.clone())),
4292 Some(AutoindentMode::EachLine),
4293 cx,
4294 );
4295
4296 let snapshot = &*buffer.read(cx);
4297 let snippet = &snippet;
4298 snippet
4299 .tabstops
4300 .iter()
4301 .map(|tabstop| {
4302 let mut tabstop_ranges = tabstop
4303 .iter()
4304 .flat_map(|tabstop_range| {
4305 let mut delta = 0_isize;
4306 insertion_ranges.iter().map(move |insertion_range| {
4307 let insertion_start = insertion_range.start as isize + delta;
4308 delta +=
4309 snippet.text.len() as isize - insertion_range.len() as isize;
4310
4311 let start = snapshot.anchor_before(
4312 (insertion_start + tabstop_range.start) as usize,
4313 );
4314 let end = snapshot
4315 .anchor_after((insertion_start + tabstop_range.end) as usize);
4316 start..end
4317 })
4318 })
4319 .collect::<Vec<_>>();
4320 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4321 tabstop_ranges
4322 })
4323 .collect::<Vec<_>>()
4324 });
4325
4326 if let Some(tabstop) = tabstops.first() {
4327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4328 s.select_ranges(tabstop.iter().cloned());
4329 });
4330 self.snippet_stack.push(SnippetState {
4331 active_index: 0,
4332 ranges: tabstops,
4333 });
4334
4335 // Check whether the just-entered snippet ends with an auto-closable bracket.
4336 if self.autoclose_regions.is_empty() {
4337 let snapshot = self.buffer.read(cx).snapshot(cx);
4338 for selection in &mut self.selections.all::<Point>(cx) {
4339 let selection_head = selection.head();
4340 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4341 continue;
4342 };
4343
4344 let mut bracket_pair = None;
4345 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4346 let prev_chars = snapshot
4347 .reversed_chars_at(selection_head)
4348 .collect::<String>();
4349 for (pair, enabled) in scope.brackets() {
4350 if enabled
4351 && pair.close
4352 && prev_chars.starts_with(pair.start.as_str())
4353 && next_chars.starts_with(pair.end.as_str())
4354 {
4355 bracket_pair = Some(pair.clone());
4356 break;
4357 }
4358 }
4359 if let Some(pair) = bracket_pair {
4360 let start = snapshot.anchor_after(selection_head);
4361 let end = snapshot.anchor_after(selection_head);
4362 self.autoclose_regions.push(AutocloseRegion {
4363 selection_id: selection.id,
4364 range: start..end,
4365 pair,
4366 });
4367 }
4368 }
4369 }
4370 }
4371 Ok(())
4372 }
4373
4374 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4375 self.move_to_snippet_tabstop(Bias::Right, cx)
4376 }
4377
4378 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4379 self.move_to_snippet_tabstop(Bias::Left, cx)
4380 }
4381
4382 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4383 if let Some(mut snippet) = self.snippet_stack.pop() {
4384 match bias {
4385 Bias::Left => {
4386 if snippet.active_index > 0 {
4387 snippet.active_index -= 1;
4388 } else {
4389 self.snippet_stack.push(snippet);
4390 return false;
4391 }
4392 }
4393 Bias::Right => {
4394 if snippet.active_index + 1 < snippet.ranges.len() {
4395 snippet.active_index += 1;
4396 } else {
4397 self.snippet_stack.push(snippet);
4398 return false;
4399 }
4400 }
4401 }
4402 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4403 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4404 s.select_anchor_ranges(current_ranges.iter().cloned())
4405 });
4406 // If snippet state is not at the last tabstop, push it back on the stack
4407 if snippet.active_index + 1 < snippet.ranges.len() {
4408 self.snippet_stack.push(snippet);
4409 }
4410 return true;
4411 }
4412 }
4413
4414 false
4415 }
4416
4417 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4418 self.transact(cx, |this, cx| {
4419 this.select_all(&SelectAll, cx);
4420 this.insert("", cx);
4421 });
4422 }
4423
4424 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4425 self.transact(cx, |this, cx| {
4426 this.select_autoclose_pair(cx);
4427 let mut selections = this.selections.all::<Point>(cx);
4428 if !this.selections.line_mode {
4429 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4430 for selection in &mut selections {
4431 if selection.is_empty() {
4432 let old_head = selection.head();
4433 let mut new_head =
4434 movement::left(&display_map, old_head.to_display_point(&display_map))
4435 .to_point(&display_map);
4436 if let Some((buffer, line_buffer_range)) = display_map
4437 .buffer_snapshot
4438 .buffer_line_for_row(old_head.row)
4439 {
4440 let indent_size =
4441 buffer.indent_size_for_line(line_buffer_range.start.row);
4442 let indent_len = match indent_size.kind {
4443 IndentKind::Space => {
4444 buffer.settings_at(line_buffer_range.start, cx).tab_size
4445 }
4446 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4447 };
4448 if old_head.column <= indent_size.len && old_head.column > 0 {
4449 let indent_len = indent_len.get();
4450 new_head = cmp::min(
4451 new_head,
4452 Point::new(
4453 old_head.row,
4454 ((old_head.column - 1) / indent_len) * indent_len,
4455 ),
4456 );
4457 }
4458 }
4459
4460 selection.set_head(new_head, SelectionGoal::None);
4461 }
4462 }
4463 }
4464
4465 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4466 this.insert("", cx);
4467 this.refresh_copilot_suggestions(true, cx);
4468 });
4469 }
4470
4471 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4472 self.transact(cx, |this, cx| {
4473 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4474 let line_mode = s.line_mode;
4475 s.move_with(|map, selection| {
4476 if selection.is_empty() && !line_mode {
4477 let cursor = movement::right(map, selection.head());
4478 selection.end = cursor;
4479 selection.reversed = true;
4480 selection.goal = SelectionGoal::None;
4481 }
4482 })
4483 });
4484 this.insert("", cx);
4485 this.refresh_copilot_suggestions(true, cx);
4486 });
4487 }
4488
4489 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4490 if self.move_to_prev_snippet_tabstop(cx) {
4491 return;
4492 }
4493
4494 self.outdent(&Outdent, cx);
4495 }
4496
4497 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4498 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4499 return;
4500 }
4501
4502 let mut selections = self.selections.all_adjusted(cx);
4503 let buffer = self.buffer.read(cx);
4504 let snapshot = buffer.snapshot(cx);
4505 let rows_iter = selections.iter().map(|s| s.head().row);
4506 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4507
4508 let mut edits = Vec::new();
4509 let mut prev_edited_row = 0;
4510 let mut row_delta = 0;
4511 for selection in &mut selections {
4512 if selection.start.row != prev_edited_row {
4513 row_delta = 0;
4514 }
4515 prev_edited_row = selection.end.row;
4516
4517 // If the selection is non-empty, then increase the indentation of the selected lines.
4518 if !selection.is_empty() {
4519 row_delta =
4520 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4521 continue;
4522 }
4523
4524 // If the selection is empty and the cursor is in the leading whitespace before the
4525 // suggested indentation, then auto-indent the line.
4526 let cursor = selection.head();
4527 let current_indent = snapshot.indent_size_for_line(cursor.row);
4528 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4529 if cursor.column < suggested_indent.len
4530 && cursor.column <= current_indent.len
4531 && current_indent.len <= suggested_indent.len
4532 {
4533 selection.start = Point::new(cursor.row, suggested_indent.len);
4534 selection.end = selection.start;
4535 if row_delta == 0 {
4536 edits.extend(Buffer::edit_for_indent_size_adjustment(
4537 cursor.row,
4538 current_indent,
4539 suggested_indent,
4540 ));
4541 row_delta = suggested_indent.len - current_indent.len;
4542 }
4543 continue;
4544 }
4545 }
4546
4547 // Accept copilot suggestion if there is only one selection and the cursor is not
4548 // in the leading whitespace.
4549 if self.selections.count() == 1
4550 && cursor.column >= current_indent.len
4551 && self.has_active_copilot_suggestion(cx)
4552 {
4553 self.accept_copilot_suggestion(cx);
4554 return;
4555 }
4556
4557 // Otherwise, insert a hard or soft tab.
4558 let settings = buffer.settings_at(cursor, cx);
4559 let tab_size = if settings.hard_tabs {
4560 IndentSize::tab()
4561 } else {
4562 let tab_size = settings.tab_size.get();
4563 let char_column = snapshot
4564 .text_for_range(Point::new(cursor.row, 0)..cursor)
4565 .flat_map(str::chars)
4566 .count()
4567 + row_delta as usize;
4568 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4569 IndentSize::spaces(chars_to_next_tab_stop)
4570 };
4571 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4572 selection.end = selection.start;
4573 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4574 row_delta += tab_size.len;
4575 }
4576
4577 self.transact(cx, |this, cx| {
4578 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4579 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4580 this.refresh_copilot_suggestions(true, cx);
4581 });
4582 }
4583
4584 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4585 if self.read_only(cx) {
4586 return;
4587 }
4588 let mut selections = self.selections.all::<Point>(cx);
4589 let mut prev_edited_row = 0;
4590 let mut row_delta = 0;
4591 let mut edits = Vec::new();
4592 let buffer = self.buffer.read(cx);
4593 let snapshot = buffer.snapshot(cx);
4594 for selection in &mut selections {
4595 if selection.start.row != prev_edited_row {
4596 row_delta = 0;
4597 }
4598 prev_edited_row = selection.end.row;
4599
4600 row_delta =
4601 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4602 }
4603
4604 self.transact(cx, |this, cx| {
4605 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4606 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4607 });
4608 }
4609
4610 fn indent_selection(
4611 buffer: &MultiBuffer,
4612 snapshot: &MultiBufferSnapshot,
4613 selection: &mut Selection<Point>,
4614 edits: &mut Vec<(Range<Point>, String)>,
4615 delta_for_start_row: u32,
4616 cx: &AppContext,
4617 ) -> u32 {
4618 let settings = buffer.settings_at(selection.start, cx);
4619 let tab_size = settings.tab_size.get();
4620 let indent_kind = if settings.hard_tabs {
4621 IndentKind::Tab
4622 } else {
4623 IndentKind::Space
4624 };
4625 let mut start_row = selection.start.row;
4626 let mut end_row = selection.end.row + 1;
4627
4628 // If a selection ends at the beginning of a line, don't indent
4629 // that last line.
4630 if selection.end.column == 0 && selection.end.row > selection.start.row {
4631 end_row -= 1;
4632 }
4633
4634 // Avoid re-indenting a row that has already been indented by a
4635 // previous selection, but still update this selection's column
4636 // to reflect that indentation.
4637 if delta_for_start_row > 0 {
4638 start_row += 1;
4639 selection.start.column += delta_for_start_row;
4640 if selection.end.row == selection.start.row {
4641 selection.end.column += delta_for_start_row;
4642 }
4643 }
4644
4645 let mut delta_for_end_row = 0;
4646 for row in start_row..end_row {
4647 let current_indent = snapshot.indent_size_for_line(row);
4648 let indent_delta = match (current_indent.kind, indent_kind) {
4649 (IndentKind::Space, IndentKind::Space) => {
4650 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4651 IndentSize::spaces(columns_to_next_tab_stop)
4652 }
4653 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4654 (_, IndentKind::Tab) => IndentSize::tab(),
4655 };
4656
4657 let row_start = Point::new(row, 0);
4658 edits.push((
4659 row_start..row_start,
4660 indent_delta.chars().collect::<String>(),
4661 ));
4662
4663 // Update this selection's endpoints to reflect the indentation.
4664 if row == selection.start.row {
4665 selection.start.column += indent_delta.len;
4666 }
4667 if row == selection.end.row {
4668 selection.end.column += indent_delta.len;
4669 delta_for_end_row = indent_delta.len;
4670 }
4671 }
4672
4673 if selection.start.row == selection.end.row {
4674 delta_for_start_row + delta_for_end_row
4675 } else {
4676 delta_for_end_row
4677 }
4678 }
4679
4680 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4681 if self.read_only(cx) {
4682 return;
4683 }
4684 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4685 let selections = self.selections.all::<Point>(cx);
4686 let mut deletion_ranges = Vec::new();
4687 let mut last_outdent = None;
4688 {
4689 let buffer = self.buffer.read(cx);
4690 let snapshot = buffer.snapshot(cx);
4691 for selection in &selections {
4692 let settings = buffer.settings_at(selection.start, cx);
4693 let tab_size = settings.tab_size.get();
4694 let mut rows = selection.spanned_rows(false, &display_map);
4695
4696 // Avoid re-outdenting a row that has already been outdented by a
4697 // previous selection.
4698 if let Some(last_row) = last_outdent {
4699 if last_row == rows.start {
4700 rows.start += 1;
4701 }
4702 }
4703
4704 for row in rows {
4705 let indent_size = snapshot.indent_size_for_line(row);
4706 if indent_size.len > 0 {
4707 let deletion_len = match indent_size.kind {
4708 IndentKind::Space => {
4709 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4710 if columns_to_prev_tab_stop == 0 {
4711 tab_size
4712 } else {
4713 columns_to_prev_tab_stop
4714 }
4715 }
4716 IndentKind::Tab => 1,
4717 };
4718 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4719 last_outdent = Some(row);
4720 }
4721 }
4722 }
4723 }
4724
4725 self.transact(cx, |this, cx| {
4726 this.buffer.update(cx, |buffer, cx| {
4727 let empty_str: Arc<str> = "".into();
4728 buffer.edit(
4729 deletion_ranges
4730 .into_iter()
4731 .map(|range| (range, empty_str.clone())),
4732 None,
4733 cx,
4734 );
4735 });
4736 let selections = this.selections.all::<usize>(cx);
4737 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4738 });
4739 }
4740
4741 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4742 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4743 let selections = self.selections.all::<Point>(cx);
4744
4745 let mut new_cursors = Vec::new();
4746 let mut edit_ranges = Vec::new();
4747 let mut selections = selections.iter().peekable();
4748 while let Some(selection) = selections.next() {
4749 let mut rows = selection.spanned_rows(false, &display_map);
4750 let goal_display_column = selection.head().to_display_point(&display_map).column();
4751
4752 // Accumulate contiguous regions of rows that we want to delete.
4753 while let Some(next_selection) = selections.peek() {
4754 let next_rows = next_selection.spanned_rows(false, &display_map);
4755 if next_rows.start <= rows.end {
4756 rows.end = next_rows.end;
4757 selections.next().unwrap();
4758 } else {
4759 break;
4760 }
4761 }
4762
4763 let buffer = &display_map.buffer_snapshot;
4764 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4765 let edit_end;
4766 let cursor_buffer_row;
4767 if buffer.max_point().row >= rows.end {
4768 // If there's a line after the range, delete the \n from the end of the row range
4769 // and position the cursor on the next line.
4770 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4771 cursor_buffer_row = rows.end;
4772 } else {
4773 // If there isn't a line after the range, delete the \n from the line before the
4774 // start of the row range and position the cursor there.
4775 edit_start = edit_start.saturating_sub(1);
4776 edit_end = buffer.len();
4777 cursor_buffer_row = rows.start.saturating_sub(1);
4778 }
4779
4780 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4781 *cursor.column_mut() =
4782 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4783
4784 new_cursors.push((
4785 selection.id,
4786 buffer.anchor_after(cursor.to_point(&display_map)),
4787 ));
4788 edit_ranges.push(edit_start..edit_end);
4789 }
4790
4791 self.transact(cx, |this, cx| {
4792 let buffer = this.buffer.update(cx, |buffer, cx| {
4793 let empty_str: Arc<str> = "".into();
4794 buffer.edit(
4795 edit_ranges
4796 .into_iter()
4797 .map(|range| (range, empty_str.clone())),
4798 None,
4799 cx,
4800 );
4801 buffer.snapshot(cx)
4802 });
4803 let new_selections = new_cursors
4804 .into_iter()
4805 .map(|(id, cursor)| {
4806 let cursor = cursor.to_point(&buffer);
4807 Selection {
4808 id,
4809 start: cursor,
4810 end: cursor,
4811 reversed: false,
4812 goal: SelectionGoal::None,
4813 }
4814 })
4815 .collect();
4816
4817 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4818 s.select(new_selections);
4819 });
4820 });
4821 }
4822
4823 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4824 if self.read_only(cx) {
4825 return;
4826 }
4827 let mut row_ranges = Vec::<Range<u32>>::new();
4828 for selection in self.selections.all::<Point>(cx) {
4829 let start = selection.start.row;
4830 let end = if selection.start.row == selection.end.row {
4831 selection.start.row + 1
4832 } else {
4833 selection.end.row
4834 };
4835
4836 if let Some(last_row_range) = row_ranges.last_mut() {
4837 if start <= last_row_range.end {
4838 last_row_range.end = end;
4839 continue;
4840 }
4841 }
4842 row_ranges.push(start..end);
4843 }
4844
4845 let snapshot = self.buffer.read(cx).snapshot(cx);
4846 let mut cursor_positions = Vec::new();
4847 for row_range in &row_ranges {
4848 let anchor = snapshot.anchor_before(Point::new(
4849 row_range.end - 1,
4850 snapshot.line_len(row_range.end - 1),
4851 ));
4852 cursor_positions.push(anchor..anchor);
4853 }
4854
4855 self.transact(cx, |this, cx| {
4856 for row_range in row_ranges.into_iter().rev() {
4857 for row in row_range.rev() {
4858 let end_of_line = Point::new(row, snapshot.line_len(row));
4859 let indent = snapshot.indent_size_for_line(row + 1);
4860 let start_of_next_line = Point::new(row + 1, indent.len);
4861
4862 let replace = if snapshot.line_len(row + 1) > indent.len {
4863 " "
4864 } else {
4865 ""
4866 };
4867
4868 this.buffer.update(cx, |buffer, cx| {
4869 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4870 });
4871 }
4872 }
4873
4874 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4875 s.select_anchor_ranges(cursor_positions)
4876 });
4877 });
4878 }
4879
4880 pub fn sort_lines_case_sensitive(
4881 &mut self,
4882 _: &SortLinesCaseSensitive,
4883 cx: &mut ViewContext<Self>,
4884 ) {
4885 self.manipulate_lines(cx, |lines| lines.sort())
4886 }
4887
4888 pub fn sort_lines_case_insensitive(
4889 &mut self,
4890 _: &SortLinesCaseInsensitive,
4891 cx: &mut ViewContext<Self>,
4892 ) {
4893 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4894 }
4895
4896 pub fn unique_lines_case_insensitive(
4897 &mut self,
4898 _: &UniqueLinesCaseInsensitive,
4899 cx: &mut ViewContext<Self>,
4900 ) {
4901 self.manipulate_lines(cx, |lines| {
4902 let mut seen = HashSet::default();
4903 lines.retain(|line| seen.insert(line.to_lowercase()));
4904 })
4905 }
4906
4907 pub fn unique_lines_case_sensitive(
4908 &mut self,
4909 _: &UniqueLinesCaseSensitive,
4910 cx: &mut ViewContext<Self>,
4911 ) {
4912 self.manipulate_lines(cx, |lines| {
4913 let mut seen = HashSet::default();
4914 lines.retain(|line| seen.insert(*line));
4915 })
4916 }
4917
4918 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4919 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4920 if !revert_changes.is_empty() {
4921 self.transact(cx, |editor, cx| {
4922 editor.buffer().update(cx, |multi_buffer, cx| {
4923 for (buffer_id, buffer_revert_ranges) in revert_changes {
4924 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4925 buffer.update(cx, |buffer, cx| {
4926 buffer.edit(buffer_revert_ranges, None, cx);
4927 });
4928 }
4929 }
4930 });
4931 editor.change_selections(None, cx, |selections| selections.refresh());
4932 });
4933 }
4934 }
4935
4936 fn gather_revert_changes(
4937 &mut self,
4938 selections: &[Selection<Anchor>],
4939 cx: &mut ViewContext<'_, Editor>,
4940 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4941 let mut revert_changes = HashMap::default();
4942 self.buffer.update(cx, |multi_buffer, cx| {
4943 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4944 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4945 let head = selection.head();
4946 let tail = selection.tail();
4947 let start = tail.to_point(&multi_buffer_snapshot).row;
4948 let end = head.to_point(&multi_buffer_snapshot).row;
4949 if start > end {
4950 end..start
4951 } else {
4952 start..end
4953 }
4954 });
4955
4956 let mut processed_buffer_rows =
4957 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4958 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4959 let query_rows =
4960 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4961 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4962 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4963 // when the caret is just above or just below the deleted hunk.
4964 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4965 let related_to_selection = if allow_adjacent {
4966 hunk.associated_range.overlaps(&query_rows)
4967 || hunk.associated_range.start == query_rows.end
4968 || hunk.associated_range.end == query_rows.start
4969 } else {
4970 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4971 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4972 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4973 || selected_multi_buffer_rows.end == hunk.associated_range.start
4974 };
4975 if related_to_selection {
4976 if !processed_buffer_rows
4977 .entry(hunk.buffer_id)
4978 .or_default()
4979 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4980 {
4981 continue;
4982 }
4983 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4984 }
4985 }
4986 }
4987 });
4988 revert_changes
4989 }
4990
4991 fn prepare_revert_change(
4992 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4993 multi_buffer: &MultiBuffer,
4994 hunk: &DiffHunk<u32>,
4995 cx: &mut AppContext,
4996 ) -> Option<()> {
4997 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
4998 let buffer = buffer.read(cx);
4999 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5000 let buffer_snapshot = buffer.snapshot();
5001 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5002 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5003 probe
5004 .0
5005 .start
5006 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5007 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5008 .then(probe.1.as_ref().cmp(original_text))
5009 }) {
5010 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5011 Some(())
5012 } else {
5013 None
5014 }
5015 }
5016
5017 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5018 self.manipulate_lines(cx, |lines| lines.reverse())
5019 }
5020
5021 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5022 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5023 }
5024
5025 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5026 where
5027 Fn: FnMut(&mut Vec<&str>),
5028 {
5029 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5030 let buffer = self.buffer.read(cx).snapshot(cx);
5031
5032 let mut edits = Vec::new();
5033
5034 let selections = self.selections.all::<Point>(cx);
5035 let mut selections = selections.iter().peekable();
5036 let mut contiguous_row_selections = Vec::new();
5037 let mut new_selections = Vec::new();
5038 let mut added_lines = 0;
5039 let mut removed_lines = 0;
5040
5041 while let Some(selection) = selections.next() {
5042 let (start_row, end_row) = consume_contiguous_rows(
5043 &mut contiguous_row_selections,
5044 selection,
5045 &display_map,
5046 &mut selections,
5047 );
5048
5049 let start_point = Point::new(start_row, 0);
5050 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5051 let text = buffer
5052 .text_for_range(start_point..end_point)
5053 .collect::<String>();
5054
5055 let mut lines = text.split('\n').collect_vec();
5056
5057 let lines_before = lines.len();
5058 callback(&mut lines);
5059 let lines_after = lines.len();
5060
5061 edits.push((start_point..end_point, lines.join("\n")));
5062
5063 // Selections must change based on added and removed line count
5064 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5065 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5066 new_selections.push(Selection {
5067 id: selection.id,
5068 start: start_row,
5069 end: end_row,
5070 goal: SelectionGoal::None,
5071 reversed: selection.reversed,
5072 });
5073
5074 if lines_after > lines_before {
5075 added_lines += lines_after - lines_before;
5076 } else if lines_before > lines_after {
5077 removed_lines += lines_before - lines_after;
5078 }
5079 }
5080
5081 self.transact(cx, |this, cx| {
5082 let buffer = this.buffer.update(cx, |buffer, cx| {
5083 buffer.edit(edits, None, cx);
5084 buffer.snapshot(cx)
5085 });
5086
5087 // Recalculate offsets on newly edited buffer
5088 let new_selections = new_selections
5089 .iter()
5090 .map(|s| {
5091 let start_point = Point::new(s.start, 0);
5092 let end_point = Point::new(s.end, buffer.line_len(s.end));
5093 Selection {
5094 id: s.id,
5095 start: buffer.point_to_offset(start_point),
5096 end: buffer.point_to_offset(end_point),
5097 goal: s.goal,
5098 reversed: s.reversed,
5099 }
5100 })
5101 .collect();
5102
5103 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5104 s.select(new_selections);
5105 });
5106
5107 this.request_autoscroll(Autoscroll::fit(), cx);
5108 });
5109 }
5110
5111 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5112 self.manipulate_text(cx, |text| text.to_uppercase())
5113 }
5114
5115 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5116 self.manipulate_text(cx, |text| text.to_lowercase())
5117 }
5118
5119 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5120 self.manipulate_text(cx, |text| {
5121 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5122 // https://github.com/rutrum/convert-case/issues/16
5123 text.split('\n')
5124 .map(|line| line.to_case(Case::Title))
5125 .join("\n")
5126 })
5127 }
5128
5129 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5130 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5131 }
5132
5133 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5134 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5135 }
5136
5137 pub fn convert_to_upper_camel_case(
5138 &mut self,
5139 _: &ConvertToUpperCamelCase,
5140 cx: &mut ViewContext<Self>,
5141 ) {
5142 self.manipulate_text(cx, |text| {
5143 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5144 // https://github.com/rutrum/convert-case/issues/16
5145 text.split('\n')
5146 .map(|line| line.to_case(Case::UpperCamel))
5147 .join("\n")
5148 })
5149 }
5150
5151 pub fn convert_to_lower_camel_case(
5152 &mut self,
5153 _: &ConvertToLowerCamelCase,
5154 cx: &mut ViewContext<Self>,
5155 ) {
5156 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5157 }
5158
5159 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5160 where
5161 Fn: FnMut(&str) -> String,
5162 {
5163 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5164 let buffer = self.buffer.read(cx).snapshot(cx);
5165
5166 let mut new_selections = Vec::new();
5167 let mut edits = Vec::new();
5168 let mut selection_adjustment = 0i32;
5169
5170 for selection in self.selections.all::<usize>(cx) {
5171 let selection_is_empty = selection.is_empty();
5172
5173 let (start, end) = if selection_is_empty {
5174 let word_range = movement::surrounding_word(
5175 &display_map,
5176 selection.start.to_display_point(&display_map),
5177 );
5178 let start = word_range.start.to_offset(&display_map, Bias::Left);
5179 let end = word_range.end.to_offset(&display_map, Bias::Left);
5180 (start, end)
5181 } else {
5182 (selection.start, selection.end)
5183 };
5184
5185 let text = buffer.text_for_range(start..end).collect::<String>();
5186 let old_length = text.len() as i32;
5187 let text = callback(&text);
5188
5189 new_selections.push(Selection {
5190 start: (start as i32 - selection_adjustment) as usize,
5191 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5192 goal: SelectionGoal::None,
5193 ..selection
5194 });
5195
5196 selection_adjustment += old_length - text.len() as i32;
5197
5198 edits.push((start..end, text));
5199 }
5200
5201 self.transact(cx, |this, cx| {
5202 this.buffer.update(cx, |buffer, cx| {
5203 buffer.edit(edits, None, cx);
5204 });
5205
5206 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5207 s.select(new_selections);
5208 });
5209
5210 this.request_autoscroll(Autoscroll::fit(), cx);
5211 });
5212 }
5213
5214 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5215 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5216 let buffer = &display_map.buffer_snapshot;
5217 let selections = self.selections.all::<Point>(cx);
5218
5219 let mut edits = Vec::new();
5220 let mut selections_iter = selections.iter().peekable();
5221 while let Some(selection) = selections_iter.next() {
5222 // Avoid duplicating the same lines twice.
5223 let mut rows = selection.spanned_rows(false, &display_map);
5224
5225 while let Some(next_selection) = selections_iter.peek() {
5226 let next_rows = next_selection.spanned_rows(false, &display_map);
5227 if next_rows.start < rows.end {
5228 rows.end = next_rows.end;
5229 selections_iter.next().unwrap();
5230 } else {
5231 break;
5232 }
5233 }
5234
5235 // Copy the text from the selected row region and splice it either at the start
5236 // or end of the region.
5237 let start = Point::new(rows.start, 0);
5238 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5239 let text = buffer
5240 .text_for_range(start..end)
5241 .chain(Some("\n"))
5242 .collect::<String>();
5243 let insert_location = if action.move_upwards {
5244 Point::new(rows.end, 0)
5245 } else {
5246 start
5247 };
5248 edits.push((insert_location..insert_location, text));
5249 }
5250
5251 self.transact(cx, |this, cx| {
5252 this.buffer.update(cx, |buffer, cx| {
5253 buffer.edit(edits, None, cx);
5254 });
5255
5256 this.request_autoscroll(Autoscroll::fit(), cx);
5257 });
5258 }
5259
5260 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5262 let buffer = self.buffer.read(cx).snapshot(cx);
5263
5264 let mut edits = Vec::new();
5265 let mut unfold_ranges = Vec::new();
5266 let mut refold_ranges = Vec::new();
5267
5268 let selections = self.selections.all::<Point>(cx);
5269 let mut selections = selections.iter().peekable();
5270 let mut contiguous_row_selections = Vec::new();
5271 let mut new_selections = Vec::new();
5272
5273 while let Some(selection) = selections.next() {
5274 // Find all the selections that span a contiguous row range
5275 let (start_row, end_row) = consume_contiguous_rows(
5276 &mut contiguous_row_selections,
5277 selection,
5278 &display_map,
5279 &mut selections,
5280 );
5281
5282 // Move the text spanned by the row range to be before the line preceding the row range
5283 if start_row > 0 {
5284 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5285 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5286 let insertion_point = display_map
5287 .prev_line_boundary(Point::new(start_row - 1, 0))
5288 .0;
5289
5290 // Don't move lines across excerpts
5291 if buffer
5292 .excerpt_boundaries_in_range((
5293 Bound::Excluded(insertion_point),
5294 Bound::Included(range_to_move.end),
5295 ))
5296 .next()
5297 .is_none()
5298 {
5299 let text = buffer
5300 .text_for_range(range_to_move.clone())
5301 .flat_map(|s| s.chars())
5302 .skip(1)
5303 .chain(['\n'])
5304 .collect::<String>();
5305
5306 edits.push((
5307 buffer.anchor_after(range_to_move.start)
5308 ..buffer.anchor_before(range_to_move.end),
5309 String::new(),
5310 ));
5311 let insertion_anchor = buffer.anchor_after(insertion_point);
5312 edits.push((insertion_anchor..insertion_anchor, text));
5313
5314 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5315
5316 // Move selections up
5317 new_selections.extend(contiguous_row_selections.drain(..).map(
5318 |mut selection| {
5319 selection.start.row -= row_delta;
5320 selection.end.row -= row_delta;
5321 selection
5322 },
5323 ));
5324
5325 // Move folds up
5326 unfold_ranges.push(range_to_move.clone());
5327 for fold in display_map.folds_in_range(
5328 buffer.anchor_before(range_to_move.start)
5329 ..buffer.anchor_after(range_to_move.end),
5330 ) {
5331 let mut start = fold.range.start.to_point(&buffer);
5332 let mut end = fold.range.end.to_point(&buffer);
5333 start.row -= row_delta;
5334 end.row -= row_delta;
5335 refold_ranges.push(start..end);
5336 }
5337 }
5338 }
5339
5340 // If we didn't move line(s), preserve the existing selections
5341 new_selections.append(&mut contiguous_row_selections);
5342 }
5343
5344 self.transact(cx, |this, cx| {
5345 this.unfold_ranges(unfold_ranges, true, true, cx);
5346 this.buffer.update(cx, |buffer, cx| {
5347 for (range, text) in edits {
5348 buffer.edit([(range, text)], None, cx);
5349 }
5350 });
5351 this.fold_ranges(refold_ranges, true, cx);
5352 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5353 s.select(new_selections);
5354 })
5355 });
5356 }
5357
5358 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5359 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5360 let buffer = self.buffer.read(cx).snapshot(cx);
5361
5362 let mut edits = Vec::new();
5363 let mut unfold_ranges = Vec::new();
5364 let mut refold_ranges = Vec::new();
5365
5366 let selections = self.selections.all::<Point>(cx);
5367 let mut selections = selections.iter().peekable();
5368 let mut contiguous_row_selections = Vec::new();
5369 let mut new_selections = Vec::new();
5370
5371 while let Some(selection) = selections.next() {
5372 // Find all the selections that span a contiguous row range
5373 let (start_row, end_row) = consume_contiguous_rows(
5374 &mut contiguous_row_selections,
5375 selection,
5376 &display_map,
5377 &mut selections,
5378 );
5379
5380 // Move the text spanned by the row range to be after the last line of the row range
5381 if end_row <= buffer.max_point().row {
5382 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5383 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5384
5385 // Don't move lines across excerpt boundaries
5386 if buffer
5387 .excerpt_boundaries_in_range((
5388 Bound::Excluded(range_to_move.start),
5389 Bound::Included(insertion_point),
5390 ))
5391 .next()
5392 .is_none()
5393 {
5394 let mut text = String::from("\n");
5395 text.extend(buffer.text_for_range(range_to_move.clone()));
5396 text.pop(); // Drop trailing newline
5397 edits.push((
5398 buffer.anchor_after(range_to_move.start)
5399 ..buffer.anchor_before(range_to_move.end),
5400 String::new(),
5401 ));
5402 let insertion_anchor = buffer.anchor_after(insertion_point);
5403 edits.push((insertion_anchor..insertion_anchor, text));
5404
5405 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5406
5407 // Move selections down
5408 new_selections.extend(contiguous_row_selections.drain(..).map(
5409 |mut selection| {
5410 selection.start.row += row_delta;
5411 selection.end.row += row_delta;
5412 selection
5413 },
5414 ));
5415
5416 // Move folds down
5417 unfold_ranges.push(range_to_move.clone());
5418 for fold in display_map.folds_in_range(
5419 buffer.anchor_before(range_to_move.start)
5420 ..buffer.anchor_after(range_to_move.end),
5421 ) {
5422 let mut start = fold.range.start.to_point(&buffer);
5423 let mut end = fold.range.end.to_point(&buffer);
5424 start.row += row_delta;
5425 end.row += row_delta;
5426 refold_ranges.push(start..end);
5427 }
5428 }
5429 }
5430
5431 // If we didn't move line(s), preserve the existing selections
5432 new_selections.append(&mut contiguous_row_selections);
5433 }
5434
5435 self.transact(cx, |this, cx| {
5436 this.unfold_ranges(unfold_ranges, true, true, cx);
5437 this.buffer.update(cx, |buffer, cx| {
5438 for (range, text) in edits {
5439 buffer.edit([(range, text)], None, cx);
5440 }
5441 });
5442 this.fold_ranges(refold_ranges, true, cx);
5443 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5444 });
5445 }
5446
5447 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5448 let text_layout_details = &self.text_layout_details(cx);
5449 self.transact(cx, |this, cx| {
5450 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5451 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5452 let line_mode = s.line_mode;
5453 s.move_with(|display_map, selection| {
5454 if !selection.is_empty() || line_mode {
5455 return;
5456 }
5457
5458 let mut head = selection.head();
5459 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5460 if head.column() == display_map.line_len(head.row()) {
5461 transpose_offset = display_map
5462 .buffer_snapshot
5463 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5464 }
5465
5466 if transpose_offset == 0 {
5467 return;
5468 }
5469
5470 *head.column_mut() += 1;
5471 head = display_map.clip_point(head, Bias::Right);
5472 let goal = SelectionGoal::HorizontalPosition(
5473 display_map
5474 .x_for_display_point(head, &text_layout_details)
5475 .into(),
5476 );
5477 selection.collapse_to(head, goal);
5478
5479 let transpose_start = display_map
5480 .buffer_snapshot
5481 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5482 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5483 let transpose_end = display_map
5484 .buffer_snapshot
5485 .clip_offset(transpose_offset + 1, Bias::Right);
5486 if let Some(ch) =
5487 display_map.buffer_snapshot.chars_at(transpose_start).next()
5488 {
5489 edits.push((transpose_start..transpose_offset, String::new()));
5490 edits.push((transpose_end..transpose_end, ch.to_string()));
5491 }
5492 }
5493 });
5494 edits
5495 });
5496 this.buffer
5497 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5498 let selections = this.selections.all::<usize>(cx);
5499 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5500 s.select(selections);
5501 });
5502 });
5503 }
5504
5505 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5506 let mut text = String::new();
5507 let buffer = self.buffer.read(cx).snapshot(cx);
5508 let mut selections = self.selections.all::<Point>(cx);
5509 let mut clipboard_selections = Vec::with_capacity(selections.len());
5510 {
5511 let max_point = buffer.max_point();
5512 let mut is_first = true;
5513 for selection in &mut selections {
5514 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5515 if is_entire_line {
5516 selection.start = Point::new(selection.start.row, 0);
5517 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5518 selection.goal = SelectionGoal::None;
5519 }
5520 if is_first {
5521 is_first = false;
5522 } else {
5523 text += "\n";
5524 }
5525 let mut len = 0;
5526 for chunk in buffer.text_for_range(selection.start..selection.end) {
5527 text.push_str(chunk);
5528 len += chunk.len();
5529 }
5530 clipboard_selections.push(ClipboardSelection {
5531 len,
5532 is_entire_line,
5533 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5534 });
5535 }
5536 }
5537
5538 self.transact(cx, |this, cx| {
5539 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5540 s.select(selections);
5541 });
5542 this.insert("", cx);
5543 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5544 });
5545 }
5546
5547 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5548 let selections = self.selections.all::<Point>(cx);
5549 let buffer = self.buffer.read(cx).read(cx);
5550 let mut text = String::new();
5551
5552 let mut clipboard_selections = Vec::with_capacity(selections.len());
5553 {
5554 let max_point = buffer.max_point();
5555 let mut is_first = true;
5556 for selection in selections.iter() {
5557 let mut start = selection.start;
5558 let mut end = selection.end;
5559 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5560 if is_entire_line {
5561 start = Point::new(start.row, 0);
5562 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5563 }
5564 if is_first {
5565 is_first = false;
5566 } else {
5567 text += "\n";
5568 }
5569 let mut len = 0;
5570 for chunk in buffer.text_for_range(start..end) {
5571 text.push_str(chunk);
5572 len += chunk.len();
5573 }
5574 clipboard_selections.push(ClipboardSelection {
5575 len,
5576 is_entire_line,
5577 first_line_indent: buffer.indent_size_for_line(start.row).len,
5578 });
5579 }
5580 }
5581
5582 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5583 }
5584
5585 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5586 if self.read_only(cx) {
5587 return;
5588 }
5589
5590 self.transact(cx, |this, cx| {
5591 if let Some(item) = cx.read_from_clipboard() {
5592 let clipboard_text = Cow::Borrowed(item.text());
5593 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5594 let old_selections = this.selections.all::<usize>(cx);
5595 let all_selections_were_entire_line =
5596 clipboard_selections.iter().all(|s| s.is_entire_line);
5597 let first_selection_indent_column =
5598 clipboard_selections.first().map(|s| s.first_line_indent);
5599 if clipboard_selections.len() != old_selections.len() {
5600 clipboard_selections.drain(..);
5601 }
5602
5603 this.buffer.update(cx, |buffer, cx| {
5604 let snapshot = buffer.read(cx);
5605 let mut start_offset = 0;
5606 let mut edits = Vec::new();
5607 let mut original_indent_columns = Vec::new();
5608 let line_mode = this.selections.line_mode;
5609 for (ix, selection) in old_selections.iter().enumerate() {
5610 let to_insert;
5611 let entire_line;
5612 let original_indent_column;
5613 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5614 let end_offset = start_offset + clipboard_selection.len;
5615 to_insert = &clipboard_text[start_offset..end_offset];
5616 entire_line = clipboard_selection.is_entire_line;
5617 start_offset = end_offset + 1;
5618 original_indent_column =
5619 Some(clipboard_selection.first_line_indent);
5620 } else {
5621 to_insert = clipboard_text.as_str();
5622 entire_line = all_selections_were_entire_line;
5623 original_indent_column = first_selection_indent_column
5624 }
5625
5626 // If the corresponding selection was empty when this slice of the
5627 // clipboard text was written, then the entire line containing the
5628 // selection was copied. If this selection is also currently empty,
5629 // then paste the line before the current line of the buffer.
5630 let range = if selection.is_empty() && !line_mode && entire_line {
5631 let column = selection.start.to_point(&snapshot).column as usize;
5632 let line_start = selection.start - column;
5633 line_start..line_start
5634 } else {
5635 selection.range()
5636 };
5637
5638 edits.push((range, to_insert));
5639 original_indent_columns.extend(original_indent_column);
5640 }
5641 drop(snapshot);
5642
5643 buffer.edit(
5644 edits,
5645 Some(AutoindentMode::Block {
5646 original_indent_columns,
5647 }),
5648 cx,
5649 );
5650 });
5651
5652 let selections = this.selections.all::<usize>(cx);
5653 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5654 } else {
5655 this.insert(&clipboard_text, cx);
5656 }
5657 }
5658 });
5659 }
5660
5661 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5662 if self.read_only(cx) {
5663 return;
5664 }
5665
5666 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5667 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5668 self.change_selections(None, cx, |s| {
5669 s.select_anchors(selections.to_vec());
5670 });
5671 }
5672 self.request_autoscroll(Autoscroll::fit(), cx);
5673 self.unmark_text(cx);
5674 self.refresh_copilot_suggestions(true, cx);
5675 cx.emit(EditorEvent::Edited);
5676 }
5677 }
5678
5679 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5680 if self.read_only(cx) {
5681 return;
5682 }
5683
5684 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5685 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5686 {
5687 self.change_selections(None, cx, |s| {
5688 s.select_anchors(selections.to_vec());
5689 });
5690 }
5691 self.request_autoscroll(Autoscroll::fit(), cx);
5692 self.unmark_text(cx);
5693 self.refresh_copilot_suggestions(true, cx);
5694 cx.emit(EditorEvent::Edited);
5695 }
5696 }
5697
5698 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5699 self.buffer
5700 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5701 }
5702
5703 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5705 let line_mode = s.line_mode;
5706 s.move_with(|map, selection| {
5707 let cursor = if selection.is_empty() && !line_mode {
5708 movement::left(map, selection.start)
5709 } else {
5710 selection.start
5711 };
5712 selection.collapse_to(cursor, SelectionGoal::None);
5713 });
5714 })
5715 }
5716
5717 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5718 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5719 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5720 })
5721 }
5722
5723 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5724 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5725 let line_mode = s.line_mode;
5726 s.move_with(|map, selection| {
5727 let cursor = if selection.is_empty() && !line_mode {
5728 movement::right(map, selection.end)
5729 } else {
5730 selection.end
5731 };
5732 selection.collapse_to(cursor, SelectionGoal::None)
5733 });
5734 })
5735 }
5736
5737 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5739 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5740 })
5741 }
5742
5743 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5744 if self.take_rename(true, cx).is_some() {
5745 return;
5746 }
5747
5748 if matches!(self.mode, EditorMode::SingleLine) {
5749 cx.propagate();
5750 return;
5751 }
5752
5753 let text_layout_details = &self.text_layout_details(cx);
5754
5755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5756 let line_mode = s.line_mode;
5757 s.move_with(|map, selection| {
5758 if !selection.is_empty() && !line_mode {
5759 selection.goal = SelectionGoal::None;
5760 }
5761 let (cursor, goal) = movement::up(
5762 map,
5763 selection.start,
5764 selection.goal,
5765 false,
5766 &text_layout_details,
5767 );
5768 selection.collapse_to(cursor, goal);
5769 });
5770 })
5771 }
5772
5773 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5774 if self.take_rename(true, cx).is_some() {
5775 return;
5776 }
5777
5778 if matches!(self.mode, EditorMode::SingleLine) {
5779 cx.propagate();
5780 return;
5781 }
5782
5783 let text_layout_details = &self.text_layout_details(cx);
5784
5785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5786 let line_mode = s.line_mode;
5787 s.move_with(|map, selection| {
5788 if !selection.is_empty() && !line_mode {
5789 selection.goal = SelectionGoal::None;
5790 }
5791 let (cursor, goal) = movement::up_by_rows(
5792 map,
5793 selection.start,
5794 action.lines,
5795 selection.goal,
5796 false,
5797 &text_layout_details,
5798 );
5799 selection.collapse_to(cursor, goal);
5800 });
5801 })
5802 }
5803
5804 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5805 if self.take_rename(true, cx).is_some() {
5806 return;
5807 }
5808
5809 if matches!(self.mode, EditorMode::SingleLine) {
5810 cx.propagate();
5811 return;
5812 }
5813
5814 let text_layout_details = &self.text_layout_details(cx);
5815
5816 self.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 selection.goal = SelectionGoal::None;
5821 }
5822 let (cursor, goal) = movement::down_by_rows(
5823 map,
5824 selection.start,
5825 action.lines,
5826 selection.goal,
5827 false,
5828 &text_layout_details,
5829 );
5830 selection.collapse_to(cursor, goal);
5831 });
5832 })
5833 }
5834
5835 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5836 let text_layout_details = &self.text_layout_details(cx);
5837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5838 s.move_heads_with(|map, head, goal| {
5839 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5840 })
5841 })
5842 }
5843
5844 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5845 let text_layout_details = &self.text_layout_details(cx);
5846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5847 s.move_heads_with(|map, head, goal| {
5848 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5849 })
5850 })
5851 }
5852
5853 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5854 if self.take_rename(true, cx).is_some() {
5855 return;
5856 }
5857
5858 if matches!(self.mode, EditorMode::SingleLine) {
5859 cx.propagate();
5860 return;
5861 }
5862
5863 let row_count = if let Some(row_count) = self.visible_line_count() {
5864 row_count as u32 - 1
5865 } else {
5866 return;
5867 };
5868
5869 let autoscroll = if action.center_cursor {
5870 Autoscroll::center()
5871 } else {
5872 Autoscroll::fit()
5873 };
5874
5875 let text_layout_details = &self.text_layout_details(cx);
5876
5877 self.change_selections(Some(autoscroll), cx, |s| {
5878 let line_mode = s.line_mode;
5879 s.move_with(|map, selection| {
5880 if !selection.is_empty() && !line_mode {
5881 selection.goal = SelectionGoal::None;
5882 }
5883 let (cursor, goal) = movement::up_by_rows(
5884 map,
5885 selection.end,
5886 row_count,
5887 selection.goal,
5888 false,
5889 &text_layout_details,
5890 );
5891 selection.collapse_to(cursor, goal);
5892 });
5893 });
5894 }
5895
5896 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5897 let text_layout_details = &self.text_layout_details(cx);
5898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5899 s.move_heads_with(|map, head, goal| {
5900 movement::up(map, head, goal, false, &text_layout_details)
5901 })
5902 })
5903 }
5904
5905 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5906 self.take_rename(true, cx);
5907
5908 if self.mode == EditorMode::SingleLine {
5909 cx.propagate();
5910 return;
5911 }
5912
5913 let text_layout_details = &self.text_layout_details(cx);
5914 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5915 let line_mode = s.line_mode;
5916 s.move_with(|map, selection| {
5917 if !selection.is_empty() && !line_mode {
5918 selection.goal = SelectionGoal::None;
5919 }
5920 let (cursor, goal) = movement::down(
5921 map,
5922 selection.end,
5923 selection.goal,
5924 false,
5925 &text_layout_details,
5926 );
5927 selection.collapse_to(cursor, goal);
5928 });
5929 });
5930 }
5931
5932 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5933 if self.take_rename(true, cx).is_some() {
5934 return;
5935 }
5936
5937 if self
5938 .context_menu
5939 .write()
5940 .as_mut()
5941 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5942 .unwrap_or(false)
5943 {
5944 return;
5945 }
5946
5947 if matches!(self.mode, EditorMode::SingleLine) {
5948 cx.propagate();
5949 return;
5950 }
5951
5952 let row_count = if let Some(row_count) = self.visible_line_count() {
5953 row_count as u32 - 1
5954 } else {
5955 return;
5956 };
5957
5958 let autoscroll = if action.center_cursor {
5959 Autoscroll::center()
5960 } else {
5961 Autoscroll::fit()
5962 };
5963
5964 let text_layout_details = &self.text_layout_details(cx);
5965 self.change_selections(Some(autoscroll), cx, |s| {
5966 let line_mode = s.line_mode;
5967 s.move_with(|map, selection| {
5968 if !selection.is_empty() && !line_mode {
5969 selection.goal = SelectionGoal::None;
5970 }
5971 let (cursor, goal) = movement::down_by_rows(
5972 map,
5973 selection.end,
5974 row_count,
5975 selection.goal,
5976 false,
5977 &text_layout_details,
5978 );
5979 selection.collapse_to(cursor, goal);
5980 });
5981 });
5982 }
5983
5984 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5985 let text_layout_details = &self.text_layout_details(cx);
5986 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5987 s.move_heads_with(|map, head, goal| {
5988 movement::down(map, head, goal, false, &text_layout_details)
5989 })
5990 });
5991 }
5992
5993 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5994 if let Some(context_menu) = self.context_menu.write().as_mut() {
5995 context_menu.select_first(self.project.as_ref(), cx);
5996 }
5997 }
5998
5999 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6000 if let Some(context_menu) = self.context_menu.write().as_mut() {
6001 context_menu.select_prev(self.project.as_ref(), cx);
6002 }
6003 }
6004
6005 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6006 if let Some(context_menu) = self.context_menu.write().as_mut() {
6007 context_menu.select_next(self.project.as_ref(), cx);
6008 }
6009 }
6010
6011 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6012 if let Some(context_menu) = self.context_menu.write().as_mut() {
6013 context_menu.select_last(self.project.as_ref(), cx);
6014 }
6015 }
6016
6017 pub fn move_to_previous_word_start(
6018 &mut self,
6019 _: &MoveToPreviousWordStart,
6020 cx: &mut ViewContext<Self>,
6021 ) {
6022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6023 s.move_cursors_with(|map, head, _| {
6024 (
6025 movement::previous_word_start(map, head),
6026 SelectionGoal::None,
6027 )
6028 });
6029 })
6030 }
6031
6032 pub fn move_to_previous_subword_start(
6033 &mut self,
6034 _: &MoveToPreviousSubwordStart,
6035 cx: &mut ViewContext<Self>,
6036 ) {
6037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6038 s.move_cursors_with(|map, head, _| {
6039 (
6040 movement::previous_subword_start(map, head),
6041 SelectionGoal::None,
6042 )
6043 });
6044 })
6045 }
6046
6047 pub fn select_to_previous_word_start(
6048 &mut self,
6049 _: &SelectToPreviousWordStart,
6050 cx: &mut ViewContext<Self>,
6051 ) {
6052 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6053 s.move_heads_with(|map, head, _| {
6054 (
6055 movement::previous_word_start(map, head),
6056 SelectionGoal::None,
6057 )
6058 });
6059 })
6060 }
6061
6062 pub fn select_to_previous_subword_start(
6063 &mut self,
6064 _: &SelectToPreviousSubwordStart,
6065 cx: &mut ViewContext<Self>,
6066 ) {
6067 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6068 s.move_heads_with(|map, head, _| {
6069 (
6070 movement::previous_subword_start(map, head),
6071 SelectionGoal::None,
6072 )
6073 });
6074 })
6075 }
6076
6077 pub fn delete_to_previous_word_start(
6078 &mut self,
6079 _: &DeleteToPreviousWordStart,
6080 cx: &mut ViewContext<Self>,
6081 ) {
6082 self.transact(cx, |this, cx| {
6083 this.select_autoclose_pair(cx);
6084 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6085 let line_mode = s.line_mode;
6086 s.move_with(|map, selection| {
6087 if selection.is_empty() && !line_mode {
6088 let cursor = movement::previous_word_start(map, selection.head());
6089 selection.set_head(cursor, SelectionGoal::None);
6090 }
6091 });
6092 });
6093 this.insert("", cx);
6094 });
6095 }
6096
6097 pub fn delete_to_previous_subword_start(
6098 &mut self,
6099 _: &DeleteToPreviousSubwordStart,
6100 cx: &mut ViewContext<Self>,
6101 ) {
6102 self.transact(cx, |this, cx| {
6103 this.select_autoclose_pair(cx);
6104 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6105 let line_mode = s.line_mode;
6106 s.move_with(|map, selection| {
6107 if selection.is_empty() && !line_mode {
6108 let cursor = movement::previous_subword_start(map, selection.head());
6109 selection.set_head(cursor, SelectionGoal::None);
6110 }
6111 });
6112 });
6113 this.insert("", cx);
6114 });
6115 }
6116
6117 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6119 s.move_cursors_with(|map, head, _| {
6120 (movement::next_word_end(map, head), SelectionGoal::None)
6121 });
6122 })
6123 }
6124
6125 pub fn move_to_next_subword_end(
6126 &mut self,
6127 _: &MoveToNextSubwordEnd,
6128 cx: &mut ViewContext<Self>,
6129 ) {
6130 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6131 s.move_cursors_with(|map, head, _| {
6132 (movement::next_subword_end(map, head), SelectionGoal::None)
6133 });
6134 })
6135 }
6136
6137 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6138 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6139 s.move_heads_with(|map, head, _| {
6140 (movement::next_word_end(map, head), SelectionGoal::None)
6141 });
6142 })
6143 }
6144
6145 pub fn select_to_next_subword_end(
6146 &mut self,
6147 _: &SelectToNextSubwordEnd,
6148 cx: &mut ViewContext<Self>,
6149 ) {
6150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6151 s.move_heads_with(|map, head, _| {
6152 (movement::next_subword_end(map, head), SelectionGoal::None)
6153 });
6154 })
6155 }
6156
6157 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6158 self.transact(cx, |this, cx| {
6159 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6160 let line_mode = s.line_mode;
6161 s.move_with(|map, selection| {
6162 if selection.is_empty() && !line_mode {
6163 let cursor = movement::next_word_end(map, selection.head());
6164 selection.set_head(cursor, SelectionGoal::None);
6165 }
6166 });
6167 });
6168 this.insert("", cx);
6169 });
6170 }
6171
6172 pub fn delete_to_next_subword_end(
6173 &mut self,
6174 _: &DeleteToNextSubwordEnd,
6175 cx: &mut ViewContext<Self>,
6176 ) {
6177 self.transact(cx, |this, cx| {
6178 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6179 s.move_with(|map, selection| {
6180 if selection.is_empty() {
6181 let cursor = movement::next_subword_end(map, selection.head());
6182 selection.set_head(cursor, SelectionGoal::None);
6183 }
6184 });
6185 });
6186 this.insert("", cx);
6187 });
6188 }
6189
6190 pub fn move_to_beginning_of_line(
6191 &mut self,
6192 _: &MoveToBeginningOfLine,
6193 cx: &mut ViewContext<Self>,
6194 ) {
6195 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6196 s.move_cursors_with(|map, head, _| {
6197 (
6198 movement::indented_line_beginning(map, head, true),
6199 SelectionGoal::None,
6200 )
6201 });
6202 })
6203 }
6204
6205 pub fn select_to_beginning_of_line(
6206 &mut self,
6207 action: &SelectToBeginningOfLine,
6208 cx: &mut ViewContext<Self>,
6209 ) {
6210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6211 s.move_heads_with(|map, head, _| {
6212 (
6213 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6214 SelectionGoal::None,
6215 )
6216 });
6217 });
6218 }
6219
6220 pub fn delete_to_beginning_of_line(
6221 &mut self,
6222 _: &DeleteToBeginningOfLine,
6223 cx: &mut ViewContext<Self>,
6224 ) {
6225 self.transact(cx, |this, cx| {
6226 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6227 s.move_with(|_, selection| {
6228 selection.reversed = true;
6229 });
6230 });
6231
6232 this.select_to_beginning_of_line(
6233 &SelectToBeginningOfLine {
6234 stop_at_soft_wraps: false,
6235 },
6236 cx,
6237 );
6238 this.backspace(&Backspace, cx);
6239 });
6240 }
6241
6242 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6243 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6244 s.move_cursors_with(|map, head, _| {
6245 (movement::line_end(map, head, true), SelectionGoal::None)
6246 });
6247 })
6248 }
6249
6250 pub fn select_to_end_of_line(
6251 &mut self,
6252 action: &SelectToEndOfLine,
6253 cx: &mut ViewContext<Self>,
6254 ) {
6255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6256 s.move_heads_with(|map, head, _| {
6257 (
6258 movement::line_end(map, head, action.stop_at_soft_wraps),
6259 SelectionGoal::None,
6260 )
6261 });
6262 })
6263 }
6264
6265 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6266 self.transact(cx, |this, cx| {
6267 this.select_to_end_of_line(
6268 &SelectToEndOfLine {
6269 stop_at_soft_wraps: false,
6270 },
6271 cx,
6272 );
6273 this.delete(&Delete, cx);
6274 });
6275 }
6276
6277 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6278 self.transact(cx, |this, cx| {
6279 this.select_to_end_of_line(
6280 &SelectToEndOfLine {
6281 stop_at_soft_wraps: false,
6282 },
6283 cx,
6284 );
6285 this.cut(&Cut, cx);
6286 });
6287 }
6288
6289 pub fn move_to_start_of_paragraph(
6290 &mut self,
6291 _: &MoveToStartOfParagraph,
6292 cx: &mut ViewContext<Self>,
6293 ) {
6294 if matches!(self.mode, EditorMode::SingleLine) {
6295 cx.propagate();
6296 return;
6297 }
6298
6299 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6300 s.move_with(|map, selection| {
6301 selection.collapse_to(
6302 movement::start_of_paragraph(map, selection.head(), 1),
6303 SelectionGoal::None,
6304 )
6305 });
6306 })
6307 }
6308
6309 pub fn move_to_end_of_paragraph(
6310 &mut self,
6311 _: &MoveToEndOfParagraph,
6312 cx: &mut ViewContext<Self>,
6313 ) {
6314 if matches!(self.mode, EditorMode::SingleLine) {
6315 cx.propagate();
6316 return;
6317 }
6318
6319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6320 s.move_with(|map, selection| {
6321 selection.collapse_to(
6322 movement::end_of_paragraph(map, selection.head(), 1),
6323 SelectionGoal::None,
6324 )
6325 });
6326 })
6327 }
6328
6329 pub fn select_to_start_of_paragraph(
6330 &mut self,
6331 _: &SelectToStartOfParagraph,
6332 cx: &mut ViewContext<Self>,
6333 ) {
6334 if matches!(self.mode, EditorMode::SingleLine) {
6335 cx.propagate();
6336 return;
6337 }
6338
6339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6340 s.move_heads_with(|map, head, _| {
6341 (
6342 movement::start_of_paragraph(map, head, 1),
6343 SelectionGoal::None,
6344 )
6345 });
6346 })
6347 }
6348
6349 pub fn select_to_end_of_paragraph(
6350 &mut self,
6351 _: &SelectToEndOfParagraph,
6352 cx: &mut ViewContext<Self>,
6353 ) {
6354 if matches!(self.mode, EditorMode::SingleLine) {
6355 cx.propagate();
6356 return;
6357 }
6358
6359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6360 s.move_heads_with(|map, head, _| {
6361 (
6362 movement::end_of_paragraph(map, head, 1),
6363 SelectionGoal::None,
6364 )
6365 });
6366 })
6367 }
6368
6369 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6370 if matches!(self.mode, EditorMode::SingleLine) {
6371 cx.propagate();
6372 return;
6373 }
6374
6375 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6376 s.select_ranges(vec![0..0]);
6377 });
6378 }
6379
6380 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6381 let mut selection = self.selections.last::<Point>(cx);
6382 selection.set_head(Point::zero(), SelectionGoal::None);
6383
6384 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6385 s.select(vec![selection]);
6386 });
6387 }
6388
6389 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6390 if matches!(self.mode, EditorMode::SingleLine) {
6391 cx.propagate();
6392 return;
6393 }
6394
6395 let cursor = self.buffer.read(cx).read(cx).len();
6396 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6397 s.select_ranges(vec![cursor..cursor])
6398 });
6399 }
6400
6401 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6402 self.nav_history = nav_history;
6403 }
6404
6405 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6406 self.nav_history.as_ref()
6407 }
6408
6409 fn push_to_nav_history(
6410 &mut self,
6411 cursor_anchor: Anchor,
6412 new_position: Option<Point>,
6413 cx: &mut ViewContext<Self>,
6414 ) {
6415 if let Some(nav_history) = self.nav_history.as_mut() {
6416 let buffer = self.buffer.read(cx).read(cx);
6417 let cursor_position = cursor_anchor.to_point(&buffer);
6418 let scroll_state = self.scroll_manager.anchor();
6419 let scroll_top_row = scroll_state.top_row(&buffer);
6420 drop(buffer);
6421
6422 if let Some(new_position) = new_position {
6423 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6424 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6425 return;
6426 }
6427 }
6428
6429 nav_history.push(
6430 Some(NavigationData {
6431 cursor_anchor,
6432 cursor_position,
6433 scroll_anchor: scroll_state,
6434 scroll_top_row,
6435 }),
6436 cx,
6437 );
6438 }
6439 }
6440
6441 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6442 let buffer = self.buffer.read(cx).snapshot(cx);
6443 let mut selection = self.selections.first::<usize>(cx);
6444 selection.set_head(buffer.len(), SelectionGoal::None);
6445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6446 s.select(vec![selection]);
6447 });
6448 }
6449
6450 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6451 let end = self.buffer.read(cx).read(cx).len();
6452 self.change_selections(None, cx, |s| {
6453 s.select_ranges(vec![0..end]);
6454 });
6455 }
6456
6457 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6458 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6459 let mut selections = self.selections.all::<Point>(cx);
6460 let max_point = display_map.buffer_snapshot.max_point();
6461 for selection in &mut selections {
6462 let rows = selection.spanned_rows(true, &display_map);
6463 selection.start = Point::new(rows.start, 0);
6464 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6465 selection.reversed = false;
6466 }
6467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6468 s.select(selections);
6469 });
6470 }
6471
6472 pub fn split_selection_into_lines(
6473 &mut self,
6474 _: &SplitSelectionIntoLines,
6475 cx: &mut ViewContext<Self>,
6476 ) {
6477 let mut to_unfold = Vec::new();
6478 let mut new_selection_ranges = Vec::new();
6479 {
6480 let selections = self.selections.all::<Point>(cx);
6481 let buffer = self.buffer.read(cx).read(cx);
6482 for selection in selections {
6483 for row in selection.start.row..selection.end.row {
6484 let cursor = Point::new(row, buffer.line_len(row));
6485 new_selection_ranges.push(cursor..cursor);
6486 }
6487 new_selection_ranges.push(selection.end..selection.end);
6488 to_unfold.push(selection.start..selection.end);
6489 }
6490 }
6491 self.unfold_ranges(to_unfold, true, true, cx);
6492 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6493 s.select_ranges(new_selection_ranges);
6494 });
6495 }
6496
6497 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6498 self.add_selection(true, cx);
6499 }
6500
6501 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6502 self.add_selection(false, cx);
6503 }
6504
6505 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6506 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6507 let mut selections = self.selections.all::<Point>(cx);
6508 let text_layout_details = self.text_layout_details(cx);
6509 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6510 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6511 let range = oldest_selection.display_range(&display_map).sorted();
6512
6513 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6514 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6515 let positions = start_x.min(end_x)..start_x.max(end_x);
6516
6517 selections.clear();
6518 let mut stack = Vec::new();
6519 for row in range.start.row()..=range.end.row() {
6520 if let Some(selection) = self.selections.build_columnar_selection(
6521 &display_map,
6522 row,
6523 &positions,
6524 oldest_selection.reversed,
6525 &text_layout_details,
6526 ) {
6527 stack.push(selection.id);
6528 selections.push(selection);
6529 }
6530 }
6531
6532 if above {
6533 stack.reverse();
6534 }
6535
6536 AddSelectionsState { above, stack }
6537 });
6538
6539 let last_added_selection = *state.stack.last().unwrap();
6540 let mut new_selections = Vec::new();
6541 if above == state.above {
6542 let end_row = if above {
6543 0
6544 } else {
6545 display_map.max_point().row()
6546 };
6547
6548 'outer: for selection in selections {
6549 if selection.id == last_added_selection {
6550 let range = selection.display_range(&display_map).sorted();
6551 debug_assert_eq!(range.start.row(), range.end.row());
6552 let mut row = range.start.row();
6553 let positions =
6554 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6555 px(start)..px(end)
6556 } else {
6557 let start_x =
6558 display_map.x_for_display_point(range.start, &text_layout_details);
6559 let end_x =
6560 display_map.x_for_display_point(range.end, &text_layout_details);
6561 start_x.min(end_x)..start_x.max(end_x)
6562 };
6563
6564 while row != end_row {
6565 if above {
6566 row -= 1;
6567 } else {
6568 row += 1;
6569 }
6570
6571 if let Some(new_selection) = self.selections.build_columnar_selection(
6572 &display_map,
6573 row,
6574 &positions,
6575 selection.reversed,
6576 &text_layout_details,
6577 ) {
6578 state.stack.push(new_selection.id);
6579 if above {
6580 new_selections.push(new_selection);
6581 new_selections.push(selection);
6582 } else {
6583 new_selections.push(selection);
6584 new_selections.push(new_selection);
6585 }
6586
6587 continue 'outer;
6588 }
6589 }
6590 }
6591
6592 new_selections.push(selection);
6593 }
6594 } else {
6595 new_selections = selections;
6596 new_selections.retain(|s| s.id != last_added_selection);
6597 state.stack.pop();
6598 }
6599
6600 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6601 s.select(new_selections);
6602 });
6603 if state.stack.len() > 1 {
6604 self.add_selections_state = Some(state);
6605 }
6606 }
6607
6608 pub fn select_next_match_internal(
6609 &mut self,
6610 display_map: &DisplaySnapshot,
6611 replace_newest: bool,
6612 autoscroll: Option<Autoscroll>,
6613 cx: &mut ViewContext<Self>,
6614 ) -> Result<()> {
6615 fn select_next_match_ranges(
6616 this: &mut Editor,
6617 range: Range<usize>,
6618 replace_newest: bool,
6619 auto_scroll: Option<Autoscroll>,
6620 cx: &mut ViewContext<Editor>,
6621 ) {
6622 this.unfold_ranges([range.clone()], false, true, cx);
6623 this.change_selections(auto_scroll, cx, |s| {
6624 if replace_newest {
6625 s.delete(s.newest_anchor().id);
6626 }
6627 s.insert_range(range.clone());
6628 });
6629 }
6630
6631 let buffer = &display_map.buffer_snapshot;
6632 let mut selections = self.selections.all::<usize>(cx);
6633 if let Some(mut select_next_state) = self.select_next_state.take() {
6634 let query = &select_next_state.query;
6635 if !select_next_state.done {
6636 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6637 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6638 let mut next_selected_range = None;
6639
6640 let bytes_after_last_selection =
6641 buffer.bytes_in_range(last_selection.end..buffer.len());
6642 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6643 let query_matches = query
6644 .stream_find_iter(bytes_after_last_selection)
6645 .map(|result| (last_selection.end, result))
6646 .chain(
6647 query
6648 .stream_find_iter(bytes_before_first_selection)
6649 .map(|result| (0, result)),
6650 );
6651
6652 for (start_offset, query_match) in query_matches {
6653 let query_match = query_match.unwrap(); // can only fail due to I/O
6654 let offset_range =
6655 start_offset + query_match.start()..start_offset + query_match.end();
6656 let display_range = offset_range.start.to_display_point(&display_map)
6657 ..offset_range.end.to_display_point(&display_map);
6658
6659 if !select_next_state.wordwise
6660 || (!movement::is_inside_word(&display_map, display_range.start)
6661 && !movement::is_inside_word(&display_map, display_range.end))
6662 {
6663 // TODO: This is n^2, because we might check all the selections
6664 if !selections
6665 .iter()
6666 .any(|selection| selection.range().overlaps(&offset_range))
6667 {
6668 next_selected_range = Some(offset_range);
6669 break;
6670 }
6671 }
6672 }
6673
6674 if let Some(next_selected_range) = next_selected_range {
6675 select_next_match_ranges(
6676 self,
6677 next_selected_range,
6678 replace_newest,
6679 autoscroll,
6680 cx,
6681 );
6682 } else {
6683 select_next_state.done = true;
6684 }
6685 }
6686
6687 self.select_next_state = Some(select_next_state);
6688 } else {
6689 let mut only_carets = true;
6690 let mut same_text_selected = true;
6691 let mut selected_text = None;
6692
6693 let mut selections_iter = selections.iter().peekable();
6694 while let Some(selection) = selections_iter.next() {
6695 if selection.start != selection.end {
6696 only_carets = false;
6697 }
6698
6699 if same_text_selected {
6700 if selected_text.is_none() {
6701 selected_text =
6702 Some(buffer.text_for_range(selection.range()).collect::<String>());
6703 }
6704
6705 if let Some(next_selection) = selections_iter.peek() {
6706 if next_selection.range().len() == selection.range().len() {
6707 let next_selected_text = buffer
6708 .text_for_range(next_selection.range())
6709 .collect::<String>();
6710 if Some(next_selected_text) != selected_text {
6711 same_text_selected = false;
6712 selected_text = None;
6713 }
6714 } else {
6715 same_text_selected = false;
6716 selected_text = None;
6717 }
6718 }
6719 }
6720 }
6721
6722 if only_carets {
6723 for selection in &mut selections {
6724 let word_range = movement::surrounding_word(
6725 &display_map,
6726 selection.start.to_display_point(&display_map),
6727 );
6728 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6729 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6730 selection.goal = SelectionGoal::None;
6731 selection.reversed = false;
6732 select_next_match_ranges(
6733 self,
6734 selection.start..selection.end,
6735 replace_newest,
6736 autoscroll,
6737 cx,
6738 );
6739 }
6740
6741 if selections.len() == 1 {
6742 let selection = selections
6743 .last()
6744 .expect("ensured that there's only one selection");
6745 let query = buffer
6746 .text_for_range(selection.start..selection.end)
6747 .collect::<String>();
6748 let is_empty = query.is_empty();
6749 let select_state = SelectNextState {
6750 query: AhoCorasick::new(&[query])?,
6751 wordwise: true,
6752 done: is_empty,
6753 };
6754 self.select_next_state = Some(select_state);
6755 } else {
6756 self.select_next_state = None;
6757 }
6758 } else if let Some(selected_text) = selected_text {
6759 self.select_next_state = Some(SelectNextState {
6760 query: AhoCorasick::new(&[selected_text])?,
6761 wordwise: false,
6762 done: false,
6763 });
6764 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6765 }
6766 }
6767 Ok(())
6768 }
6769
6770 pub fn select_all_matches(
6771 &mut self,
6772 _action: &SelectAllMatches,
6773 cx: &mut ViewContext<Self>,
6774 ) -> Result<()> {
6775 self.push_to_selection_history();
6776 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6777
6778 self.select_next_match_internal(&display_map, false, None, cx)?;
6779 let Some(select_next_state) = self.select_next_state.as_mut() else {
6780 return Ok(());
6781 };
6782 if select_next_state.done {
6783 return Ok(());
6784 }
6785
6786 let mut new_selections = self.selections.all::<usize>(cx);
6787
6788 let buffer = &display_map.buffer_snapshot;
6789 let query_matches = select_next_state
6790 .query
6791 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6792
6793 for query_match in query_matches {
6794 let query_match = query_match.unwrap(); // can only fail due to I/O
6795 let offset_range = query_match.start()..query_match.end();
6796 let display_range = offset_range.start.to_display_point(&display_map)
6797 ..offset_range.end.to_display_point(&display_map);
6798
6799 if !select_next_state.wordwise
6800 || (!movement::is_inside_word(&display_map, display_range.start)
6801 && !movement::is_inside_word(&display_map, display_range.end))
6802 {
6803 self.selections.change_with(cx, |selections| {
6804 new_selections.push(Selection {
6805 id: selections.new_selection_id(),
6806 start: offset_range.start,
6807 end: offset_range.end,
6808 reversed: false,
6809 goal: SelectionGoal::None,
6810 });
6811 });
6812 }
6813 }
6814
6815 new_selections.sort_by_key(|selection| selection.start);
6816 let mut ix = 0;
6817 while ix + 1 < new_selections.len() {
6818 let current_selection = &new_selections[ix];
6819 let next_selection = &new_selections[ix + 1];
6820 if current_selection.range().overlaps(&next_selection.range()) {
6821 if current_selection.id < next_selection.id {
6822 new_selections.remove(ix + 1);
6823 } else {
6824 new_selections.remove(ix);
6825 }
6826 } else {
6827 ix += 1;
6828 }
6829 }
6830
6831 select_next_state.done = true;
6832 self.unfold_ranges(
6833 new_selections.iter().map(|selection| selection.range()),
6834 false,
6835 false,
6836 cx,
6837 );
6838 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6839 selections.select(new_selections)
6840 });
6841
6842 Ok(())
6843 }
6844
6845 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6846 self.push_to_selection_history();
6847 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6848 self.select_next_match_internal(
6849 &display_map,
6850 action.replace_newest,
6851 Some(Autoscroll::newest()),
6852 cx,
6853 )?;
6854 Ok(())
6855 }
6856
6857 pub fn select_previous(
6858 &mut self,
6859 action: &SelectPrevious,
6860 cx: &mut ViewContext<Self>,
6861 ) -> Result<()> {
6862 self.push_to_selection_history();
6863 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6864 let buffer = &display_map.buffer_snapshot;
6865 let mut selections = self.selections.all::<usize>(cx);
6866 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6867 let query = &select_prev_state.query;
6868 if !select_prev_state.done {
6869 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6870 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6871 let mut next_selected_range = None;
6872 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6873 let bytes_before_last_selection =
6874 buffer.reversed_bytes_in_range(0..last_selection.start);
6875 let bytes_after_first_selection =
6876 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6877 let query_matches = query
6878 .stream_find_iter(bytes_before_last_selection)
6879 .map(|result| (last_selection.start, result))
6880 .chain(
6881 query
6882 .stream_find_iter(bytes_after_first_selection)
6883 .map(|result| (buffer.len(), result)),
6884 );
6885 for (end_offset, query_match) in query_matches {
6886 let query_match = query_match.unwrap(); // can only fail due to I/O
6887 let offset_range =
6888 end_offset - query_match.end()..end_offset - query_match.start();
6889 let display_range = offset_range.start.to_display_point(&display_map)
6890 ..offset_range.end.to_display_point(&display_map);
6891
6892 if !select_prev_state.wordwise
6893 || (!movement::is_inside_word(&display_map, display_range.start)
6894 && !movement::is_inside_word(&display_map, display_range.end))
6895 {
6896 next_selected_range = Some(offset_range);
6897 break;
6898 }
6899 }
6900
6901 if let Some(next_selected_range) = next_selected_range {
6902 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6903 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6904 if action.replace_newest {
6905 s.delete(s.newest_anchor().id);
6906 }
6907 s.insert_range(next_selected_range);
6908 });
6909 } else {
6910 select_prev_state.done = true;
6911 }
6912 }
6913
6914 self.select_prev_state = Some(select_prev_state);
6915 } else {
6916 let mut only_carets = true;
6917 let mut same_text_selected = true;
6918 let mut selected_text = None;
6919
6920 let mut selections_iter = selections.iter().peekable();
6921 while let Some(selection) = selections_iter.next() {
6922 if selection.start != selection.end {
6923 only_carets = false;
6924 }
6925
6926 if same_text_selected {
6927 if selected_text.is_none() {
6928 selected_text =
6929 Some(buffer.text_for_range(selection.range()).collect::<String>());
6930 }
6931
6932 if let Some(next_selection) = selections_iter.peek() {
6933 if next_selection.range().len() == selection.range().len() {
6934 let next_selected_text = buffer
6935 .text_for_range(next_selection.range())
6936 .collect::<String>();
6937 if Some(next_selected_text) != selected_text {
6938 same_text_selected = false;
6939 selected_text = None;
6940 }
6941 } else {
6942 same_text_selected = false;
6943 selected_text = None;
6944 }
6945 }
6946 }
6947 }
6948
6949 if only_carets {
6950 for selection in &mut selections {
6951 let word_range = movement::surrounding_word(
6952 &display_map,
6953 selection.start.to_display_point(&display_map),
6954 );
6955 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6956 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6957 selection.goal = SelectionGoal::None;
6958 selection.reversed = false;
6959 }
6960 if selections.len() == 1 {
6961 let selection = selections
6962 .last()
6963 .expect("ensured that there's only one selection");
6964 let query = buffer
6965 .text_for_range(selection.start..selection.end)
6966 .collect::<String>();
6967 let is_empty = query.is_empty();
6968 let select_state = SelectNextState {
6969 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6970 wordwise: true,
6971 done: is_empty,
6972 };
6973 self.select_prev_state = Some(select_state);
6974 } else {
6975 self.select_prev_state = None;
6976 }
6977
6978 self.unfold_ranges(
6979 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6980 false,
6981 true,
6982 cx,
6983 );
6984 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6985 s.select(selections);
6986 });
6987 } else if let Some(selected_text) = selected_text {
6988 self.select_prev_state = Some(SelectNextState {
6989 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6990 wordwise: false,
6991 done: false,
6992 });
6993 self.select_previous(action, cx)?;
6994 }
6995 }
6996 Ok(())
6997 }
6998
6999 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7000 let text_layout_details = &self.text_layout_details(cx);
7001 self.transact(cx, |this, cx| {
7002 let mut selections = this.selections.all::<Point>(cx);
7003 let mut edits = Vec::new();
7004 let mut selection_edit_ranges = Vec::new();
7005 let mut last_toggled_row = None;
7006 let snapshot = this.buffer.read(cx).read(cx);
7007 let empty_str: Arc<str> = "".into();
7008 let mut suffixes_inserted = Vec::new();
7009
7010 fn comment_prefix_range(
7011 snapshot: &MultiBufferSnapshot,
7012 row: u32,
7013 comment_prefix: &str,
7014 comment_prefix_whitespace: &str,
7015 ) -> Range<Point> {
7016 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7017
7018 let mut line_bytes = snapshot
7019 .bytes_in_range(start..snapshot.max_point())
7020 .flatten()
7021 .copied();
7022
7023 // If this line currently begins with the line comment prefix, then record
7024 // the range containing the prefix.
7025 if line_bytes
7026 .by_ref()
7027 .take(comment_prefix.len())
7028 .eq(comment_prefix.bytes())
7029 {
7030 // Include any whitespace that matches the comment prefix.
7031 let matching_whitespace_len = line_bytes
7032 .zip(comment_prefix_whitespace.bytes())
7033 .take_while(|(a, b)| a == b)
7034 .count() as u32;
7035 let end = Point::new(
7036 start.row,
7037 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7038 );
7039 start..end
7040 } else {
7041 start..start
7042 }
7043 }
7044
7045 fn comment_suffix_range(
7046 snapshot: &MultiBufferSnapshot,
7047 row: u32,
7048 comment_suffix: &str,
7049 comment_suffix_has_leading_space: bool,
7050 ) -> Range<Point> {
7051 let end = Point::new(row, snapshot.line_len(row));
7052 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7053
7054 let mut line_end_bytes = snapshot
7055 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7056 .flatten()
7057 .copied();
7058
7059 let leading_space_len = if suffix_start_column > 0
7060 && line_end_bytes.next() == Some(b' ')
7061 && comment_suffix_has_leading_space
7062 {
7063 1
7064 } else {
7065 0
7066 };
7067
7068 // If this line currently begins with the line comment prefix, then record
7069 // the range containing the prefix.
7070 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7071 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7072 start..end
7073 } else {
7074 end..end
7075 }
7076 }
7077
7078 // TODO: Handle selections that cross excerpts
7079 for selection in &mut selections {
7080 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7081 let language = if let Some(language) =
7082 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7083 {
7084 language
7085 } else {
7086 continue;
7087 };
7088
7089 selection_edit_ranges.clear();
7090
7091 // If multiple selections contain a given row, avoid processing that
7092 // row more than once.
7093 let mut start_row = selection.start.row;
7094 if last_toggled_row == Some(start_row) {
7095 start_row += 1;
7096 }
7097 let end_row =
7098 if selection.end.row > selection.start.row && selection.end.column == 0 {
7099 selection.end.row - 1
7100 } else {
7101 selection.end.row
7102 };
7103 last_toggled_row = Some(end_row);
7104
7105 if start_row > end_row {
7106 continue;
7107 }
7108
7109 // If the language has line comments, toggle those.
7110 if let Some(full_comment_prefix) = language
7111 .line_comment_prefixes()
7112 .and_then(|prefixes| prefixes.first())
7113 {
7114 // Split the comment prefix's trailing whitespace into a separate string,
7115 // as that portion won't be used for detecting if a line is a comment.
7116 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7117 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7118 let mut all_selection_lines_are_comments = true;
7119
7120 for row in start_row..=end_row {
7121 if start_row < end_row && snapshot.is_line_blank(row) {
7122 continue;
7123 }
7124
7125 let prefix_range = comment_prefix_range(
7126 snapshot.deref(),
7127 row,
7128 comment_prefix,
7129 comment_prefix_whitespace,
7130 );
7131 if prefix_range.is_empty() {
7132 all_selection_lines_are_comments = false;
7133 }
7134 selection_edit_ranges.push(prefix_range);
7135 }
7136
7137 if all_selection_lines_are_comments {
7138 edits.extend(
7139 selection_edit_ranges
7140 .iter()
7141 .cloned()
7142 .map(|range| (range, empty_str.clone())),
7143 );
7144 } else {
7145 let min_column = selection_edit_ranges
7146 .iter()
7147 .map(|r| r.start.column)
7148 .min()
7149 .unwrap_or(0);
7150 edits.extend(selection_edit_ranges.iter().map(|range| {
7151 let position = Point::new(range.start.row, min_column);
7152 (position..position, full_comment_prefix.clone())
7153 }));
7154 }
7155 } else if let Some((full_comment_prefix, comment_suffix)) =
7156 language.block_comment_delimiters()
7157 {
7158 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7159 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7160 let prefix_range = comment_prefix_range(
7161 snapshot.deref(),
7162 start_row,
7163 comment_prefix,
7164 comment_prefix_whitespace,
7165 );
7166 let suffix_range = comment_suffix_range(
7167 snapshot.deref(),
7168 end_row,
7169 comment_suffix.trim_start_matches(' '),
7170 comment_suffix.starts_with(' '),
7171 );
7172
7173 if prefix_range.is_empty() || suffix_range.is_empty() {
7174 edits.push((
7175 prefix_range.start..prefix_range.start,
7176 full_comment_prefix.clone(),
7177 ));
7178 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7179 suffixes_inserted.push((end_row, comment_suffix.len()));
7180 } else {
7181 edits.push((prefix_range, empty_str.clone()));
7182 edits.push((suffix_range, empty_str.clone()));
7183 }
7184 } else {
7185 continue;
7186 }
7187 }
7188
7189 drop(snapshot);
7190 this.buffer.update(cx, |buffer, cx| {
7191 buffer.edit(edits, None, cx);
7192 });
7193
7194 // Adjust selections so that they end before any comment suffixes that
7195 // were inserted.
7196 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7197 let mut selections = this.selections.all::<Point>(cx);
7198 let snapshot = this.buffer.read(cx).read(cx);
7199 for selection in &mut selections {
7200 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7201 match row.cmp(&selection.end.row) {
7202 Ordering::Less => {
7203 suffixes_inserted.next();
7204 continue;
7205 }
7206 Ordering::Greater => break,
7207 Ordering::Equal => {
7208 if selection.end.column == snapshot.line_len(row) {
7209 if selection.is_empty() {
7210 selection.start.column -= suffix_len as u32;
7211 }
7212 selection.end.column -= suffix_len as u32;
7213 }
7214 break;
7215 }
7216 }
7217 }
7218 }
7219
7220 drop(snapshot);
7221 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7222
7223 let selections = this.selections.all::<Point>(cx);
7224 let selections_on_single_row = selections.windows(2).all(|selections| {
7225 selections[0].start.row == selections[1].start.row
7226 && selections[0].end.row == selections[1].end.row
7227 && selections[0].start.row == selections[0].end.row
7228 });
7229 let selections_selecting = selections
7230 .iter()
7231 .any(|selection| selection.start != selection.end);
7232 let advance_downwards = action.advance_downwards
7233 && selections_on_single_row
7234 && !selections_selecting
7235 && this.mode != EditorMode::SingleLine;
7236
7237 if advance_downwards {
7238 let snapshot = this.buffer.read(cx).snapshot(cx);
7239
7240 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7241 s.move_cursors_with(|display_snapshot, display_point, _| {
7242 let mut point = display_point.to_point(display_snapshot);
7243 point.row += 1;
7244 point = snapshot.clip_point(point, Bias::Left);
7245 let display_point = point.to_display_point(display_snapshot);
7246 let goal = SelectionGoal::HorizontalPosition(
7247 display_snapshot
7248 .x_for_display_point(display_point, &text_layout_details)
7249 .into(),
7250 );
7251 (display_point, goal)
7252 })
7253 });
7254 }
7255 });
7256 }
7257
7258 pub fn select_larger_syntax_node(
7259 &mut self,
7260 _: &SelectLargerSyntaxNode,
7261 cx: &mut ViewContext<Self>,
7262 ) {
7263 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7264 let buffer = self.buffer.read(cx).snapshot(cx);
7265 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7266
7267 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7268 let mut selected_larger_node = false;
7269 let new_selections = old_selections
7270 .iter()
7271 .map(|selection| {
7272 let old_range = selection.start..selection.end;
7273 let mut new_range = old_range.clone();
7274 while let Some(containing_range) =
7275 buffer.range_for_syntax_ancestor(new_range.clone())
7276 {
7277 new_range = containing_range;
7278 if !display_map.intersects_fold(new_range.start)
7279 && !display_map.intersects_fold(new_range.end)
7280 {
7281 break;
7282 }
7283 }
7284
7285 selected_larger_node |= new_range != old_range;
7286 Selection {
7287 id: selection.id,
7288 start: new_range.start,
7289 end: new_range.end,
7290 goal: SelectionGoal::None,
7291 reversed: selection.reversed,
7292 }
7293 })
7294 .collect::<Vec<_>>();
7295
7296 if selected_larger_node {
7297 stack.push(old_selections);
7298 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7299 s.select(new_selections);
7300 });
7301 }
7302 self.select_larger_syntax_node_stack = stack;
7303 }
7304
7305 pub fn select_smaller_syntax_node(
7306 &mut self,
7307 _: &SelectSmallerSyntaxNode,
7308 cx: &mut ViewContext<Self>,
7309 ) {
7310 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7311 if let Some(selections) = stack.pop() {
7312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7313 s.select(selections.to_vec());
7314 });
7315 }
7316 self.select_larger_syntax_node_stack = stack;
7317 }
7318
7319 pub fn move_to_enclosing_bracket(
7320 &mut self,
7321 _: &MoveToEnclosingBracket,
7322 cx: &mut ViewContext<Self>,
7323 ) {
7324 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7325 s.move_offsets_with(|snapshot, selection| {
7326 let Some(enclosing_bracket_ranges) =
7327 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7328 else {
7329 return;
7330 };
7331
7332 let mut best_length = usize::MAX;
7333 let mut best_inside = false;
7334 let mut best_in_bracket_range = false;
7335 let mut best_destination = None;
7336 for (open, close) in enclosing_bracket_ranges {
7337 let close = close.to_inclusive();
7338 let length = close.end() - open.start;
7339 let inside = selection.start >= open.end && selection.end <= *close.start();
7340 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7341 || close.contains(&selection.head());
7342
7343 // If best is next to a bracket and current isn't, skip
7344 if !in_bracket_range && best_in_bracket_range {
7345 continue;
7346 }
7347
7348 // Prefer smaller lengths unless best is inside and current isn't
7349 if length > best_length && (best_inside || !inside) {
7350 continue;
7351 }
7352
7353 best_length = length;
7354 best_inside = inside;
7355 best_in_bracket_range = in_bracket_range;
7356 best_destination = Some(
7357 if close.contains(&selection.start) && close.contains(&selection.end) {
7358 if inside {
7359 open.end
7360 } else {
7361 open.start
7362 }
7363 } else {
7364 if inside {
7365 *close.start()
7366 } else {
7367 *close.end()
7368 }
7369 },
7370 );
7371 }
7372
7373 if let Some(destination) = best_destination {
7374 selection.collapse_to(destination, SelectionGoal::None);
7375 }
7376 })
7377 });
7378 }
7379
7380 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7381 self.end_selection(cx);
7382 self.selection_history.mode = SelectionHistoryMode::Undoing;
7383 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7384 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7385 self.select_next_state = entry.select_next_state;
7386 self.select_prev_state = entry.select_prev_state;
7387 self.add_selections_state = entry.add_selections_state;
7388 self.request_autoscroll(Autoscroll::newest(), cx);
7389 }
7390 self.selection_history.mode = SelectionHistoryMode::Normal;
7391 }
7392
7393 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7394 self.end_selection(cx);
7395 self.selection_history.mode = SelectionHistoryMode::Redoing;
7396 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7397 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7398 self.select_next_state = entry.select_next_state;
7399 self.select_prev_state = entry.select_prev_state;
7400 self.add_selections_state = entry.add_selections_state;
7401 self.request_autoscroll(Autoscroll::newest(), cx);
7402 }
7403 self.selection_history.mode = SelectionHistoryMode::Normal;
7404 }
7405
7406 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7407 self.go_to_diagnostic_impl(Direction::Next, cx)
7408 }
7409
7410 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7411 self.go_to_diagnostic_impl(Direction::Prev, cx)
7412 }
7413
7414 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7415 let buffer = self.buffer.read(cx).snapshot(cx);
7416 let selection = self.selections.newest::<usize>(cx);
7417
7418 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7419 if direction == Direction::Next {
7420 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7421 let (group_id, jump_to) = popover.activation_info();
7422 if self.activate_diagnostics(group_id, cx) {
7423 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7424 let mut new_selection = s.newest_anchor().clone();
7425 new_selection.collapse_to(jump_to, SelectionGoal::None);
7426 s.select_anchors(vec![new_selection.clone()]);
7427 });
7428 }
7429 return;
7430 }
7431 }
7432
7433 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7434 active_diagnostics
7435 .primary_range
7436 .to_offset(&buffer)
7437 .to_inclusive()
7438 });
7439 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7440 if active_primary_range.contains(&selection.head()) {
7441 *active_primary_range.end()
7442 } else {
7443 selection.head()
7444 }
7445 } else {
7446 selection.head()
7447 };
7448
7449 loop {
7450 let mut diagnostics = if direction == Direction::Prev {
7451 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7452 } else {
7453 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7454 };
7455 let group = diagnostics.find_map(|entry| {
7456 if entry.diagnostic.is_primary
7457 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7458 && !entry.range.is_empty()
7459 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7460 && !entry.range.contains(&search_start)
7461 {
7462 Some((entry.range, entry.diagnostic.group_id))
7463 } else {
7464 None
7465 }
7466 });
7467
7468 if let Some((primary_range, group_id)) = group {
7469 if self.activate_diagnostics(group_id, cx) {
7470 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7471 s.select(vec![Selection {
7472 id: selection.id,
7473 start: primary_range.start,
7474 end: primary_range.start,
7475 reversed: false,
7476 goal: SelectionGoal::None,
7477 }]);
7478 });
7479 }
7480 break;
7481 } else {
7482 // Cycle around to the start of the buffer, potentially moving back to the start of
7483 // the currently active diagnostic.
7484 active_primary_range.take();
7485 if direction == Direction::Prev {
7486 if search_start == buffer.len() {
7487 break;
7488 } else {
7489 search_start = buffer.len();
7490 }
7491 } else if search_start == 0 {
7492 break;
7493 } else {
7494 search_start = 0;
7495 }
7496 }
7497 }
7498 }
7499
7500 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7501 let snapshot = self
7502 .display_map
7503 .update(cx, |display_map, cx| display_map.snapshot(cx));
7504 let selection = self.selections.newest::<Point>(cx);
7505
7506 if !self.seek_in_direction(
7507 &snapshot,
7508 selection.head(),
7509 false,
7510 snapshot
7511 .buffer_snapshot
7512 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7513 cx,
7514 ) {
7515 let wrapped_point = Point::zero();
7516 self.seek_in_direction(
7517 &snapshot,
7518 wrapped_point,
7519 true,
7520 snapshot
7521 .buffer_snapshot
7522 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7523 cx,
7524 );
7525 }
7526 }
7527
7528 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7529 let snapshot = self
7530 .display_map
7531 .update(cx, |display_map, cx| display_map.snapshot(cx));
7532 let selection = self.selections.newest::<Point>(cx);
7533
7534 if !self.seek_in_direction(
7535 &snapshot,
7536 selection.head(),
7537 false,
7538 snapshot
7539 .buffer_snapshot
7540 .git_diff_hunks_in_range_rev(0..selection.head().row),
7541 cx,
7542 ) {
7543 let wrapped_point = snapshot.buffer_snapshot.max_point();
7544 self.seek_in_direction(
7545 &snapshot,
7546 wrapped_point,
7547 true,
7548 snapshot
7549 .buffer_snapshot
7550 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7551 cx,
7552 );
7553 }
7554 }
7555
7556 fn seek_in_direction(
7557 &mut self,
7558 snapshot: &DisplaySnapshot,
7559 initial_point: Point,
7560 is_wrapped: bool,
7561 hunks: impl Iterator<Item = DiffHunk<u32>>,
7562 cx: &mut ViewContext<Editor>,
7563 ) -> bool {
7564 let display_point = initial_point.to_display_point(snapshot);
7565 let mut hunks = hunks
7566 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7567 .filter(|hunk| {
7568 if is_wrapped {
7569 true
7570 } else {
7571 !hunk.contains_display_row(display_point.row())
7572 }
7573 })
7574 .dedup();
7575
7576 if let Some(hunk) = hunks.next() {
7577 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7578 let row = hunk.start_display_row();
7579 let point = DisplayPoint::new(row, 0);
7580 s.select_display_ranges([point..point]);
7581 });
7582
7583 true
7584 } else {
7585 false
7586 }
7587 }
7588
7589 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7590 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7591 }
7592
7593 pub fn go_to_implementation(&mut self, _: &GoToImplementation, cx: &mut ViewContext<Self>) {
7594 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx);
7595 }
7596
7597 pub fn go_to_implementation_split(
7598 &mut self,
7599 _: &GoToImplementationSplit,
7600 cx: &mut ViewContext<Self>,
7601 ) {
7602 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx);
7603 }
7604
7605 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7606 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7607 }
7608
7609 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7610 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7611 }
7612
7613 pub fn go_to_type_definition_split(
7614 &mut self,
7615 _: &GoToTypeDefinitionSplit,
7616 cx: &mut ViewContext<Self>,
7617 ) {
7618 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7619 }
7620
7621 fn go_to_definition_of_kind(
7622 &mut self,
7623 kind: GotoDefinitionKind,
7624 split: bool,
7625 cx: &mut ViewContext<Self>,
7626 ) {
7627 let Some(workspace) = self.workspace() else {
7628 return;
7629 };
7630 let buffer = self.buffer.read(cx);
7631 let head = self.selections.newest::<usize>(cx).head();
7632 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7633 text_anchor
7634 } else {
7635 return;
7636 };
7637
7638 let project = workspace.read(cx).project().clone();
7639 let definitions = project.update(cx, |project, cx| match kind {
7640 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7641 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7642 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7643 });
7644
7645 cx.spawn(|editor, mut cx| async move {
7646 let definitions = definitions.await?;
7647 editor.update(&mut cx, |editor, cx| {
7648 editor.navigate_to_hover_links(
7649 Some(kind),
7650 definitions.into_iter().map(HoverLink::Text).collect(),
7651 split,
7652 cx,
7653 );
7654 })?;
7655 Ok::<(), anyhow::Error>(())
7656 })
7657 .detach_and_log_err(cx);
7658 }
7659
7660 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7661 let position = self.selections.newest_anchor().head();
7662 let Some((buffer, buffer_position)) =
7663 self.buffer.read(cx).text_anchor_for_position(position, cx)
7664 else {
7665 return;
7666 };
7667
7668 cx.spawn(|editor, mut cx| async move {
7669 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7670 editor.update(&mut cx, |_, cx| {
7671 cx.open_url(&url);
7672 })
7673 } else {
7674 Ok(())
7675 }
7676 })
7677 .detach();
7678 }
7679
7680 pub(crate) fn navigate_to_hover_links(
7681 &mut self,
7682 kind: Option<GotoDefinitionKind>,
7683 mut definitions: Vec<HoverLink>,
7684 split: bool,
7685 cx: &mut ViewContext<Editor>,
7686 ) {
7687 // If there is one definition, just open it directly
7688 if definitions.len() == 1 {
7689 let definition = definitions.pop().unwrap();
7690 let target_task = match definition {
7691 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7692 HoverLink::InlayHint(lsp_location, server_id) => {
7693 self.compute_target_location(lsp_location, server_id, cx)
7694 }
7695 HoverLink::Url(url) => {
7696 cx.open_url(&url);
7697 Task::ready(Ok(None))
7698 }
7699 };
7700 cx.spawn(|editor, mut cx| async move {
7701 let target = target_task.await.context("target resolution task")?;
7702 if let Some(target) = target {
7703 editor.update(&mut cx, |editor, cx| {
7704 let Some(workspace) = editor.workspace() else {
7705 return;
7706 };
7707 let pane = workspace.read(cx).active_pane().clone();
7708
7709 let range = target.range.to_offset(target.buffer.read(cx));
7710 let range = editor.range_for_match(&range);
7711 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7712 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7713 s.select_ranges([range]);
7714 });
7715 } else {
7716 cx.window_context().defer(move |cx| {
7717 let target_editor: View<Self> =
7718 workspace.update(cx, |workspace, cx| {
7719 let pane = if split {
7720 workspace.adjacent_pane(cx)
7721 } else {
7722 workspace.active_pane().clone()
7723 };
7724
7725 workspace.open_project_item(pane, target.buffer.clone(), cx)
7726 });
7727 target_editor.update(cx, |target_editor, cx| {
7728 // When selecting a definition in a different buffer, disable the nav history
7729 // to avoid creating a history entry at the previous cursor location.
7730 pane.update(cx, |pane, _| pane.disable_history());
7731 target_editor.change_selections(
7732 Some(Autoscroll::fit()),
7733 cx,
7734 |s| {
7735 s.select_ranges([range]);
7736 },
7737 );
7738 pane.update(cx, |pane, _| pane.enable_history());
7739 });
7740 });
7741 }
7742 })
7743 } else {
7744 Ok(())
7745 }
7746 })
7747 .detach_and_log_err(cx);
7748 } else if !definitions.is_empty() {
7749 let replica_id = self.replica_id(cx);
7750 cx.spawn(|editor, mut cx| async move {
7751 let (title, location_tasks, workspace) = editor
7752 .update(&mut cx, |editor, cx| {
7753 let tab_kind = match kind {
7754 Some(GotoDefinitionKind::Implementation) => "Implementations",
7755 _ => "Definitions",
7756 };
7757 let title = definitions
7758 .iter()
7759 .find_map(|definition| match definition {
7760 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7761 let buffer = origin.buffer.read(cx);
7762 format!(
7763 "{} for {}",
7764 tab_kind,
7765 buffer
7766 .text_for_range(origin.range.clone())
7767 .collect::<String>()
7768 )
7769 }),
7770 HoverLink::InlayHint(_, _) => None,
7771 HoverLink::Url(_) => None,
7772 })
7773 .unwrap_or(tab_kind.to_string());
7774 let location_tasks = definitions
7775 .into_iter()
7776 .map(|definition| match definition {
7777 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7778 HoverLink::InlayHint(lsp_location, server_id) => {
7779 editor.compute_target_location(lsp_location, server_id, cx)
7780 }
7781 HoverLink::Url(_) => Task::ready(Ok(None)),
7782 })
7783 .collect::<Vec<_>>();
7784 (title, location_tasks, editor.workspace().clone())
7785 })
7786 .context("location tasks preparation")?;
7787
7788 let locations = futures::future::join_all(location_tasks)
7789 .await
7790 .into_iter()
7791 .filter_map(|location| location.transpose())
7792 .collect::<Result<_>>()
7793 .context("location tasks")?;
7794
7795 let Some(workspace) = workspace else {
7796 return Ok(());
7797 };
7798 workspace
7799 .update(&mut cx, |workspace, cx| {
7800 Self::open_locations_in_multibuffer(
7801 workspace, locations, replica_id, title, split, cx,
7802 )
7803 })
7804 .ok();
7805
7806 anyhow::Ok(())
7807 })
7808 .detach_and_log_err(cx);
7809 }
7810 }
7811
7812 fn compute_target_location(
7813 &self,
7814 lsp_location: lsp::Location,
7815 server_id: LanguageServerId,
7816 cx: &mut ViewContext<Editor>,
7817 ) -> Task<anyhow::Result<Option<Location>>> {
7818 let Some(project) = self.project.clone() else {
7819 return Task::Ready(Some(Ok(None)));
7820 };
7821
7822 cx.spawn(move |editor, mut cx| async move {
7823 let location_task = editor.update(&mut cx, |editor, cx| {
7824 project.update(cx, |project, cx| {
7825 let language_server_name =
7826 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7827 project
7828 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7829 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7830 });
7831 language_server_name.map(|language_server_name| {
7832 project.open_local_buffer_via_lsp(
7833 lsp_location.uri.clone(),
7834 server_id,
7835 language_server_name,
7836 cx,
7837 )
7838 })
7839 })
7840 })?;
7841 let location = match location_task {
7842 Some(task) => Some({
7843 let target_buffer_handle = task.await.context("open local buffer")?;
7844 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7845 let target_start = target_buffer
7846 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7847 let target_end = target_buffer
7848 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7849 target_buffer.anchor_after(target_start)
7850 ..target_buffer.anchor_before(target_end)
7851 })?;
7852 Location {
7853 buffer: target_buffer_handle,
7854 range,
7855 }
7856 }),
7857 None => None,
7858 };
7859 Ok(location)
7860 })
7861 }
7862
7863 pub fn find_all_references(
7864 &mut self,
7865 _: &FindAllReferences,
7866 cx: &mut ViewContext<Self>,
7867 ) -> Option<Task<Result<()>>> {
7868 let buffer = self.buffer.read(cx);
7869 let head = self.selections.newest::<usize>(cx).head();
7870 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7871 let replica_id = self.replica_id(cx);
7872
7873 let workspace = self.workspace()?;
7874 let project = workspace.read(cx).project().clone();
7875 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7876 Some(cx.spawn(|editor, mut cx| async move {
7877 let mut locations = references.await?;
7878 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7879 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7880
7881 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7882 // So we will remove it from locations
7883 // If there is only one reference, we will not do this filter cause it may make locations empty
7884 if locations.len() > 1 {
7885 cx.update(|cx| {
7886 locations.retain(|location| {
7887 // fn foo(x : i64) {
7888 // ^
7889 // println!(x);
7890 // }
7891 // It is ok to find reference when caret being at ^ (the end of the word)
7892 // So we turn offset into inclusive to include the end of the word
7893 !location
7894 .range
7895 .to_offset(location.buffer.read(cx))
7896 .to_inclusive()
7897 .contains(&head_offset)
7898 });
7899 })?;
7900 }
7901
7902 if locations.is_empty() {
7903 return Ok(());
7904 }
7905
7906 // If there is one reference, just open it directly
7907 if locations.len() == 1 {
7908 let target = locations.pop().unwrap();
7909
7910 return editor.update(&mut cx, |editor, cx| {
7911 let range = target.range.to_offset(target.buffer.read(cx));
7912 let range = editor.range_for_match(&range);
7913
7914 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7915 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7916 s.select_ranges([range]);
7917 });
7918 } else {
7919 cx.window_context().defer(move |cx| {
7920 let target_editor: View<Self> =
7921 workspace.update(cx, |workspace, cx| {
7922 workspace.open_project_item(
7923 workspace.active_pane().clone(),
7924 target.buffer.clone(),
7925 cx,
7926 )
7927 });
7928 target_editor.update(cx, |target_editor, cx| {
7929 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7930 s.select_ranges([range]);
7931 })
7932 })
7933 })
7934 }
7935 });
7936 }
7937
7938 workspace.update(&mut cx, |workspace, cx| {
7939 let title = locations
7940 .first()
7941 .as_ref()
7942 .map(|location| {
7943 let buffer = location.buffer.read(cx);
7944 format!(
7945 "References to `{}`",
7946 buffer
7947 .text_for_range(location.range.clone())
7948 .collect::<String>()
7949 )
7950 })
7951 .unwrap();
7952 Self::open_locations_in_multibuffer(
7953 workspace, locations, replica_id, title, false, cx,
7954 );
7955 })?;
7956
7957 Ok(())
7958 }))
7959 }
7960
7961 /// Opens a multibuffer with the given project locations in it
7962 pub fn open_locations_in_multibuffer(
7963 workspace: &mut Workspace,
7964 mut locations: Vec<Location>,
7965 replica_id: ReplicaId,
7966 title: String,
7967 split: bool,
7968 cx: &mut ViewContext<Workspace>,
7969 ) {
7970 // If there are multiple definitions, open them in a multibuffer
7971 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7972 let mut locations = locations.into_iter().peekable();
7973 let mut ranges_to_highlight = Vec::new();
7974 let capability = workspace.project().read(cx).capability();
7975
7976 let excerpt_buffer = cx.new_model(|cx| {
7977 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7978 while let Some(location) = locations.next() {
7979 let buffer = location.buffer.read(cx);
7980 let mut ranges_for_buffer = Vec::new();
7981 let range = location.range.to_offset(buffer);
7982 ranges_for_buffer.push(range.clone());
7983
7984 while let Some(next_location) = locations.peek() {
7985 if next_location.buffer == location.buffer {
7986 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7987 locations.next();
7988 } else {
7989 break;
7990 }
7991 }
7992
7993 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7994 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7995 location.buffer.clone(),
7996 ranges_for_buffer,
7997 1,
7998 cx,
7999 ))
8000 }
8001
8002 multibuffer.with_title(title)
8003 });
8004
8005 let editor = cx.new_view(|cx| {
8006 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8007 });
8008 editor.update(cx, |editor, cx| {
8009 editor.highlight_background::<Self>(
8010 ranges_to_highlight,
8011 |theme| theme.editor_highlighted_line_background,
8012 cx,
8013 );
8014 });
8015 if split {
8016 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8017 } else {
8018 workspace.add_item_to_active_pane(Box::new(editor), cx);
8019 }
8020 }
8021
8022 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8023 use language::ToOffset as _;
8024
8025 let project = self.project.clone()?;
8026 let selection = self.selections.newest_anchor().clone();
8027 let (cursor_buffer, cursor_buffer_position) = self
8028 .buffer
8029 .read(cx)
8030 .text_anchor_for_position(selection.head(), cx)?;
8031 let (tail_buffer, _) = self
8032 .buffer
8033 .read(cx)
8034 .text_anchor_for_position(selection.tail(), cx)?;
8035 if tail_buffer != cursor_buffer {
8036 return None;
8037 }
8038
8039 let snapshot = cursor_buffer.read(cx).snapshot();
8040 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8041 let prepare_rename = project.update(cx, |project, cx| {
8042 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8043 });
8044 drop(snapshot);
8045
8046 Some(cx.spawn(|this, mut cx| async move {
8047 let rename_range = if let Some(range) = prepare_rename.await? {
8048 Some(range)
8049 } else {
8050 this.update(&mut cx, |this, cx| {
8051 let buffer = this.buffer.read(cx).snapshot(cx);
8052 let mut buffer_highlights = this
8053 .document_highlights_for_position(selection.head(), &buffer)
8054 .filter(|highlight| {
8055 highlight.start.excerpt_id == selection.head().excerpt_id
8056 && highlight.end.excerpt_id == selection.head().excerpt_id
8057 });
8058 buffer_highlights
8059 .next()
8060 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8061 })?
8062 };
8063 if let Some(rename_range) = rename_range {
8064 this.update(&mut cx, |this, cx| {
8065 let snapshot = cursor_buffer.read(cx).snapshot();
8066 let rename_buffer_range = rename_range.to_offset(&snapshot);
8067 let cursor_offset_in_rename_range =
8068 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8069
8070 this.take_rename(false, cx);
8071 let buffer = this.buffer.read(cx).read(cx);
8072 let cursor_offset = selection.head().to_offset(&buffer);
8073 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8074 let rename_end = rename_start + rename_buffer_range.len();
8075 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8076 let mut old_highlight_id = None;
8077 let old_name: Arc<str> = buffer
8078 .chunks(rename_start..rename_end, true)
8079 .map(|chunk| {
8080 if old_highlight_id.is_none() {
8081 old_highlight_id = chunk.syntax_highlight_id;
8082 }
8083 chunk.text
8084 })
8085 .collect::<String>()
8086 .into();
8087
8088 drop(buffer);
8089
8090 // Position the selection in the rename editor so that it matches the current selection.
8091 this.show_local_selections = false;
8092 let rename_editor = cx.new_view(|cx| {
8093 let mut editor = Editor::single_line(cx);
8094 editor.buffer.update(cx, |buffer, cx| {
8095 buffer.edit([(0..0, old_name.clone())], None, cx)
8096 });
8097 editor.select_all(&SelectAll, cx);
8098 editor
8099 });
8100
8101 let ranges = this
8102 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8103 .into_iter()
8104 .flat_map(|(_, ranges)| ranges.into_iter())
8105 .chain(
8106 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8107 .into_iter()
8108 .flat_map(|(_, ranges)| ranges.into_iter()),
8109 )
8110 .collect();
8111
8112 this.highlight_text::<Rename>(
8113 ranges,
8114 HighlightStyle {
8115 fade_out: Some(0.6),
8116 ..Default::default()
8117 },
8118 cx,
8119 );
8120 let rename_focus_handle = rename_editor.focus_handle(cx);
8121 cx.focus(&rename_focus_handle);
8122 let block_id = this.insert_blocks(
8123 [BlockProperties {
8124 style: BlockStyle::Flex,
8125 position: range.start,
8126 height: 1,
8127 render: Arc::new({
8128 let rename_editor = rename_editor.clone();
8129 move |cx: &mut BlockContext| {
8130 let mut text_style = cx.editor_style.text.clone();
8131 if let Some(highlight_style) = old_highlight_id
8132 .and_then(|h| h.style(&cx.editor_style.syntax))
8133 {
8134 text_style = text_style.highlight(highlight_style);
8135 }
8136 div()
8137 .pl(cx.anchor_x)
8138 .child(EditorElement::new(
8139 &rename_editor,
8140 EditorStyle {
8141 background: cx.theme().system().transparent,
8142 local_player: cx.editor_style.local_player,
8143 text: text_style,
8144 scrollbar_width: cx.editor_style.scrollbar_width,
8145 syntax: cx.editor_style.syntax.clone(),
8146 status: cx.editor_style.status.clone(),
8147 inlay_hints_style: HighlightStyle {
8148 color: Some(cx.theme().status().hint),
8149 font_weight: Some(FontWeight::BOLD),
8150 ..HighlightStyle::default()
8151 },
8152 suggestions_style: HighlightStyle {
8153 color: Some(cx.theme().status().predictive),
8154 ..HighlightStyle::default()
8155 },
8156 },
8157 ))
8158 .into_any_element()
8159 }
8160 }),
8161 disposition: BlockDisposition::Below,
8162 }],
8163 Some(Autoscroll::fit()),
8164 cx,
8165 )[0];
8166 this.pending_rename = Some(RenameState {
8167 range,
8168 old_name,
8169 editor: rename_editor,
8170 block_id,
8171 });
8172 })?;
8173 }
8174
8175 Ok(())
8176 }))
8177 }
8178
8179 pub fn confirm_rename(
8180 &mut self,
8181 _: &ConfirmRename,
8182 cx: &mut ViewContext<Self>,
8183 ) -> Option<Task<Result<()>>> {
8184 let rename = self.take_rename(false, cx)?;
8185 let workspace = self.workspace()?;
8186 let (start_buffer, start) = self
8187 .buffer
8188 .read(cx)
8189 .text_anchor_for_position(rename.range.start, cx)?;
8190 let (end_buffer, end) = self
8191 .buffer
8192 .read(cx)
8193 .text_anchor_for_position(rename.range.end, cx)?;
8194 if start_buffer != end_buffer {
8195 return None;
8196 }
8197
8198 let buffer = start_buffer;
8199 let range = start..end;
8200 let old_name = rename.old_name;
8201 let new_name = rename.editor.read(cx).text(cx);
8202
8203 let rename = workspace
8204 .read(cx)
8205 .project()
8206 .clone()
8207 .update(cx, |project, cx| {
8208 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8209 });
8210 let workspace = workspace.downgrade();
8211
8212 Some(cx.spawn(|editor, mut cx| async move {
8213 let project_transaction = rename.await?;
8214 Self::open_project_transaction(
8215 &editor,
8216 workspace,
8217 project_transaction,
8218 format!("Rename: {} → {}", old_name, new_name),
8219 cx.clone(),
8220 )
8221 .await?;
8222
8223 editor.update(&mut cx, |editor, cx| {
8224 editor.refresh_document_highlights(cx);
8225 })?;
8226 Ok(())
8227 }))
8228 }
8229
8230 fn take_rename(
8231 &mut self,
8232 moving_cursor: bool,
8233 cx: &mut ViewContext<Self>,
8234 ) -> Option<RenameState> {
8235 let rename = self.pending_rename.take()?;
8236 if rename.editor.focus_handle(cx).is_focused(cx) {
8237 cx.focus(&self.focus_handle);
8238 }
8239
8240 self.remove_blocks(
8241 [rename.block_id].into_iter().collect(),
8242 Some(Autoscroll::fit()),
8243 cx,
8244 );
8245 self.clear_highlights::<Rename>(cx);
8246 self.show_local_selections = true;
8247
8248 if moving_cursor {
8249 let rename_editor = rename.editor.read(cx);
8250 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8251
8252 // Update the selection to match the position of the selection inside
8253 // the rename editor.
8254 let snapshot = self.buffer.read(cx).read(cx);
8255 let rename_range = rename.range.to_offset(&snapshot);
8256 let cursor_in_editor = snapshot
8257 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8258 .min(rename_range.end);
8259 drop(snapshot);
8260
8261 self.change_selections(None, cx, |s| {
8262 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8263 });
8264 } else {
8265 self.refresh_document_highlights(cx);
8266 }
8267
8268 Some(rename)
8269 }
8270
8271 pub fn pending_rename(&self) -> Option<&RenameState> {
8272 self.pending_rename.as_ref()
8273 }
8274
8275 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8276 let project = match &self.project {
8277 Some(project) => project.clone(),
8278 None => return None,
8279 };
8280
8281 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8282 }
8283
8284 fn perform_format(
8285 &mut self,
8286 project: Model<Project>,
8287 trigger: FormatTrigger,
8288 cx: &mut ViewContext<Self>,
8289 ) -> Task<Result<()>> {
8290 let buffer = self.buffer().clone();
8291 let buffers = buffer.read(cx).all_buffers();
8292
8293 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8294 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8295
8296 cx.spawn(|_, mut cx| async move {
8297 let transaction = futures::select_biased! {
8298 _ = timeout => {
8299 log::warn!("timed out waiting for formatting");
8300 None
8301 }
8302 transaction = format.log_err().fuse() => transaction,
8303 };
8304
8305 buffer
8306 .update(&mut cx, |buffer, cx| {
8307 if let Some(transaction) = transaction {
8308 if !buffer.is_singleton() {
8309 buffer.push_transaction(&transaction.0, cx);
8310 }
8311 }
8312
8313 cx.notify();
8314 })
8315 .ok();
8316
8317 Ok(())
8318 })
8319 }
8320
8321 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8322 if let Some(project) = self.project.clone() {
8323 self.buffer.update(cx, |multi_buffer, cx| {
8324 project.update(cx, |project, cx| {
8325 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8326 });
8327 })
8328 }
8329 }
8330
8331 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8332 cx.show_character_palette();
8333 }
8334
8335 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8336 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8337 let buffer = self.buffer.read(cx).snapshot(cx);
8338 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8339 let is_valid = buffer
8340 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8341 .any(|entry| {
8342 entry.diagnostic.is_primary
8343 && !entry.range.is_empty()
8344 && entry.range.start == primary_range_start
8345 && entry.diagnostic.message == active_diagnostics.primary_message
8346 });
8347
8348 if is_valid != active_diagnostics.is_valid {
8349 active_diagnostics.is_valid = is_valid;
8350 let mut new_styles = HashMap::default();
8351 for (block_id, diagnostic) in &active_diagnostics.blocks {
8352 new_styles.insert(
8353 *block_id,
8354 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8355 );
8356 }
8357 self.display_map
8358 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8359 }
8360 }
8361 }
8362
8363 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8364 self.dismiss_diagnostics(cx);
8365 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8366 let buffer = self.buffer.read(cx).snapshot(cx);
8367
8368 let mut primary_range = None;
8369 let mut primary_message = None;
8370 let mut group_end = Point::zero();
8371 let diagnostic_group = buffer
8372 .diagnostic_group::<Point>(group_id)
8373 .map(|entry| {
8374 if entry.range.end > group_end {
8375 group_end = entry.range.end;
8376 }
8377 if entry.diagnostic.is_primary {
8378 primary_range = Some(entry.range.clone());
8379 primary_message = Some(entry.diagnostic.message.clone());
8380 }
8381 entry
8382 })
8383 .collect::<Vec<_>>();
8384 let primary_range = primary_range?;
8385 let primary_message = primary_message?;
8386 let primary_range =
8387 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8388
8389 let blocks = display_map
8390 .insert_blocks(
8391 diagnostic_group.iter().map(|entry| {
8392 let diagnostic = entry.diagnostic.clone();
8393 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8394 BlockProperties {
8395 style: BlockStyle::Fixed,
8396 position: buffer.anchor_after(entry.range.start),
8397 height: message_height,
8398 render: diagnostic_block_renderer(diagnostic, true),
8399 disposition: BlockDisposition::Below,
8400 }
8401 }),
8402 cx,
8403 )
8404 .into_iter()
8405 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8406 .collect();
8407
8408 Some(ActiveDiagnosticGroup {
8409 primary_range,
8410 primary_message,
8411 blocks,
8412 is_valid: true,
8413 })
8414 });
8415 self.active_diagnostics.is_some()
8416 }
8417
8418 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8419 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8420 self.display_map.update(cx, |display_map, cx| {
8421 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8422 });
8423 cx.notify();
8424 }
8425 }
8426
8427 pub fn set_selections_from_remote(
8428 &mut self,
8429 selections: Vec<Selection<Anchor>>,
8430 pending_selection: Option<Selection<Anchor>>,
8431 cx: &mut ViewContext<Self>,
8432 ) {
8433 let old_cursor_position = self.selections.newest_anchor().head();
8434 self.selections.change_with(cx, |s| {
8435 s.select_anchors(selections);
8436 if let Some(pending_selection) = pending_selection {
8437 s.set_pending(pending_selection, SelectMode::Character);
8438 } else {
8439 s.clear_pending();
8440 }
8441 });
8442 self.selections_did_change(false, &old_cursor_position, cx);
8443 }
8444
8445 fn push_to_selection_history(&mut self) {
8446 self.selection_history.push(SelectionHistoryEntry {
8447 selections: self.selections.disjoint_anchors(),
8448 select_next_state: self.select_next_state.clone(),
8449 select_prev_state: self.select_prev_state.clone(),
8450 add_selections_state: self.add_selections_state.clone(),
8451 });
8452 }
8453
8454 pub fn transact(
8455 &mut self,
8456 cx: &mut ViewContext<Self>,
8457 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8458 ) -> Option<TransactionId> {
8459 self.start_transaction_at(Instant::now(), cx);
8460 update(self, cx);
8461 self.end_transaction_at(Instant::now(), cx)
8462 }
8463
8464 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8465 self.end_selection(cx);
8466 if let Some(tx_id) = self
8467 .buffer
8468 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8469 {
8470 self.selection_history
8471 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8472 }
8473 }
8474
8475 fn end_transaction_at(
8476 &mut self,
8477 now: Instant,
8478 cx: &mut ViewContext<Self>,
8479 ) -> Option<TransactionId> {
8480 if let Some(tx_id) = self
8481 .buffer
8482 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8483 {
8484 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8485 *end_selections = Some(self.selections.disjoint_anchors());
8486 } else {
8487 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8488 }
8489
8490 cx.emit(EditorEvent::Edited);
8491 Some(tx_id)
8492 } else {
8493 None
8494 }
8495 }
8496
8497 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8498 let mut fold_ranges = Vec::new();
8499
8500 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8501
8502 let selections = self.selections.all_adjusted(cx);
8503 for selection in selections {
8504 let range = selection.range().sorted();
8505 let buffer_start_row = range.start.row;
8506
8507 for row in (0..=range.end.row).rev() {
8508 let fold_range = display_map.foldable_range(row);
8509
8510 if let Some(fold_range) = fold_range {
8511 if fold_range.end.row >= buffer_start_row {
8512 fold_ranges.push(fold_range);
8513 if row <= range.start.row {
8514 break;
8515 }
8516 }
8517 }
8518 }
8519 }
8520
8521 self.fold_ranges(fold_ranges, true, cx);
8522 }
8523
8524 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8525 let buffer_row = fold_at.buffer_row;
8526 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8527
8528 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8529 let autoscroll = self
8530 .selections
8531 .all::<Point>(cx)
8532 .iter()
8533 .any(|selection| fold_range.overlaps(&selection.range()));
8534
8535 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8536 }
8537 }
8538
8539 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8540 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8541 let buffer = &display_map.buffer_snapshot;
8542 let selections = self.selections.all::<Point>(cx);
8543 let ranges = selections
8544 .iter()
8545 .map(|s| {
8546 let range = s.display_range(&display_map).sorted();
8547 let mut start = range.start.to_point(&display_map);
8548 let mut end = range.end.to_point(&display_map);
8549 start.column = 0;
8550 end.column = buffer.line_len(end.row);
8551 start..end
8552 })
8553 .collect::<Vec<_>>();
8554
8555 self.unfold_ranges(ranges, true, true, cx);
8556 }
8557
8558 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8559 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8560
8561 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8562 ..Point::new(
8563 unfold_at.buffer_row,
8564 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8565 );
8566
8567 let autoscroll = self
8568 .selections
8569 .all::<Point>(cx)
8570 .iter()
8571 .any(|selection| selection.range().overlaps(&intersection_range));
8572
8573 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8574 }
8575
8576 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8577 let selections = self.selections.all::<Point>(cx);
8578 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8579 let line_mode = self.selections.line_mode;
8580 let ranges = selections.into_iter().map(|s| {
8581 if line_mode {
8582 let start = Point::new(s.start.row, 0);
8583 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8584 start..end
8585 } else {
8586 s.start..s.end
8587 }
8588 });
8589 self.fold_ranges(ranges, true, cx);
8590 }
8591
8592 pub fn fold_ranges<T: ToOffset + Clone>(
8593 &mut self,
8594 ranges: impl IntoIterator<Item = Range<T>>,
8595 auto_scroll: bool,
8596 cx: &mut ViewContext<Self>,
8597 ) {
8598 let mut ranges = ranges.into_iter().peekable();
8599 if ranges.peek().is_some() {
8600 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8601
8602 if auto_scroll {
8603 self.request_autoscroll(Autoscroll::fit(), cx);
8604 }
8605
8606 cx.notify();
8607 }
8608 }
8609
8610 pub fn unfold_ranges<T: ToOffset + Clone>(
8611 &mut self,
8612 ranges: impl IntoIterator<Item = Range<T>>,
8613 inclusive: bool,
8614 auto_scroll: bool,
8615 cx: &mut ViewContext<Self>,
8616 ) {
8617 let mut ranges = ranges.into_iter().peekable();
8618 if ranges.peek().is_some() {
8619 self.display_map
8620 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8621 if auto_scroll {
8622 self.request_autoscroll(Autoscroll::fit(), cx);
8623 }
8624
8625 cx.notify();
8626 }
8627 }
8628
8629 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8630 if hovered != self.gutter_hovered {
8631 self.gutter_hovered = hovered;
8632 cx.notify();
8633 }
8634 }
8635
8636 pub fn insert_blocks(
8637 &mut self,
8638 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8639 autoscroll: Option<Autoscroll>,
8640 cx: &mut ViewContext<Self>,
8641 ) -> Vec<BlockId> {
8642 let blocks = self
8643 .display_map
8644 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8645 if let Some(autoscroll) = autoscroll {
8646 self.request_autoscroll(autoscroll, cx);
8647 }
8648 blocks
8649 }
8650
8651 pub fn replace_blocks(
8652 &mut self,
8653 blocks: HashMap<BlockId, RenderBlock>,
8654 autoscroll: Option<Autoscroll>,
8655 cx: &mut ViewContext<Self>,
8656 ) {
8657 self.display_map
8658 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8659 if let Some(autoscroll) = autoscroll {
8660 self.request_autoscroll(autoscroll, cx);
8661 }
8662 }
8663
8664 pub fn remove_blocks(
8665 &mut self,
8666 block_ids: HashSet<BlockId>,
8667 autoscroll: Option<Autoscroll>,
8668 cx: &mut ViewContext<Self>,
8669 ) {
8670 self.display_map.update(cx, |display_map, cx| {
8671 display_map.remove_blocks(block_ids, cx)
8672 });
8673 if let Some(autoscroll) = autoscroll {
8674 self.request_autoscroll(autoscroll, cx);
8675 }
8676 }
8677
8678 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8679 self.display_map
8680 .update(cx, |map, cx| map.snapshot(cx))
8681 .longest_row()
8682 }
8683
8684 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8685 self.display_map
8686 .update(cx, |map, cx| map.snapshot(cx))
8687 .max_point()
8688 }
8689
8690 pub fn text(&self, cx: &AppContext) -> String {
8691 self.buffer.read(cx).read(cx).text()
8692 }
8693
8694 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8695 let text = self.text(cx);
8696 let text = text.trim();
8697
8698 if text.is_empty() {
8699 return None;
8700 }
8701
8702 Some(text.to_string())
8703 }
8704
8705 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8706 self.transact(cx, |this, cx| {
8707 this.buffer
8708 .read(cx)
8709 .as_singleton()
8710 .expect("you can only call set_text on editors for singleton buffers")
8711 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8712 });
8713 }
8714
8715 pub fn display_text(&self, cx: &mut AppContext) -> String {
8716 self.display_map
8717 .update(cx, |map, cx| map.snapshot(cx))
8718 .text()
8719 }
8720
8721 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8722 let mut wrap_guides = smallvec::smallvec![];
8723
8724 if self.show_wrap_guides == Some(false) {
8725 return wrap_guides;
8726 }
8727
8728 let settings = self.buffer.read(cx).settings_at(0, cx);
8729 if settings.show_wrap_guides {
8730 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8731 wrap_guides.push((soft_wrap as usize, true));
8732 }
8733 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8734 }
8735
8736 wrap_guides
8737 }
8738
8739 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8740 let settings = self.buffer.read(cx).settings_at(0, cx);
8741 let mode = self
8742 .soft_wrap_mode_override
8743 .unwrap_or_else(|| settings.soft_wrap);
8744 match mode {
8745 language_settings::SoftWrap::None => SoftWrap::None,
8746 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8747 language_settings::SoftWrap::PreferredLineLength => {
8748 SoftWrap::Column(settings.preferred_line_length)
8749 }
8750 }
8751 }
8752
8753 pub fn set_soft_wrap_mode(
8754 &mut self,
8755 mode: language_settings::SoftWrap,
8756 cx: &mut ViewContext<Self>,
8757 ) {
8758 self.soft_wrap_mode_override = Some(mode);
8759 cx.notify();
8760 }
8761
8762 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8763 let rem_size = cx.rem_size();
8764 self.display_map.update(cx, |map, cx| {
8765 map.set_font(
8766 style.text.font(),
8767 style.text.font_size.to_pixels(rem_size),
8768 cx,
8769 )
8770 });
8771 self.style = Some(style);
8772 }
8773
8774 #[cfg(any(test, feature = "test-support"))]
8775 pub fn style(&self) -> Option<&EditorStyle> {
8776 self.style.as_ref()
8777 }
8778
8779 // Called by the element. This method is not designed to be called outside of the editor
8780 // element's layout code because it does not notify when rewrapping is computed synchronously.
8781 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8782 self.display_map
8783 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8784 }
8785
8786 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8787 if self.soft_wrap_mode_override.is_some() {
8788 self.soft_wrap_mode_override.take();
8789 } else {
8790 let soft_wrap = match self.soft_wrap_mode(cx) {
8791 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8792 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8793 };
8794 self.soft_wrap_mode_override = Some(soft_wrap);
8795 }
8796 cx.notify();
8797 }
8798
8799 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8800 let mut editor_settings = EditorSettings::get_global(cx).clone();
8801 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8802 EditorSettings::override_global(editor_settings, cx);
8803 }
8804
8805 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8806 self.show_gutter = show_gutter;
8807 cx.notify();
8808 }
8809
8810 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8811 self.show_wrap_guides = Some(show_gutter);
8812 cx.notify();
8813 }
8814
8815 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8816 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8817 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8818 cx.reveal_path(&file.abs_path(cx));
8819 }
8820 }
8821 }
8822
8823 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8824 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8825 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8826 if let Some(path) = file.abs_path(cx).to_str() {
8827 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8828 }
8829 }
8830 }
8831 }
8832
8833 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8834 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8835 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8836 if let Some(path) = file.path().to_str() {
8837 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8838 }
8839 }
8840 }
8841 }
8842
8843 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8844 use git::permalink::{build_permalink, BuildPermalinkParams};
8845
8846 let (path, repo) = maybe!({
8847 let project_handle = self.project.as_ref()?.clone();
8848 let project = project_handle.read(cx);
8849 let buffer = self.buffer().read(cx).as_singleton()?;
8850 let path = buffer
8851 .read(cx)
8852 .file()?
8853 .as_local()?
8854 .path()
8855 .to_str()?
8856 .to_string();
8857 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8858 Some((path, repo))
8859 })
8860 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8861
8862 const REMOTE_NAME: &str = "origin";
8863 let origin_url = repo
8864 .lock()
8865 .remote_url(REMOTE_NAME)
8866 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8867 let sha = repo
8868 .lock()
8869 .head_sha()
8870 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8871 let selections = self.selections.all::<Point>(cx);
8872 let selection = selections.iter().peekable().next();
8873
8874 build_permalink(BuildPermalinkParams {
8875 remote_url: &origin_url,
8876 sha: &sha,
8877 path: &path,
8878 selection: selection.map(|selection| selection.range()),
8879 })
8880 }
8881
8882 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8883 let permalink = self.get_permalink_to_line(cx);
8884
8885 match permalink {
8886 Ok(permalink) => {
8887 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8888 }
8889 Err(err) => {
8890 let message = format!("Failed to copy permalink: {err}");
8891
8892 Err::<(), anyhow::Error>(err).log_err();
8893
8894 if let Some(workspace) = self.workspace() {
8895 workspace.update(cx, |workspace, cx| {
8896 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8897 })
8898 }
8899 }
8900 }
8901 }
8902
8903 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8904 let permalink = self.get_permalink_to_line(cx);
8905
8906 match permalink {
8907 Ok(permalink) => {
8908 cx.open_url(permalink.as_ref());
8909 }
8910 Err(err) => {
8911 let message = format!("Failed to open permalink: {err}");
8912
8913 Err::<(), anyhow::Error>(err).log_err();
8914
8915 if let Some(workspace) = self.workspace() {
8916 workspace.update(cx, |workspace, cx| {
8917 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8918 })
8919 }
8920 }
8921 }
8922 }
8923
8924 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
8925 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
8926 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
8927 pub fn highlight_rows<T: 'static>(
8928 &mut self,
8929 rows: Range<Anchor>,
8930 color: Option<Hsla>,
8931 cx: &mut ViewContext<Self>,
8932 ) {
8933 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
8934 match self.highlighted_rows.entry(TypeId::of::<T>()) {
8935 hash_map::Entry::Occupied(o) => {
8936 let row_highlights = o.into_mut();
8937 let existing_highlight_index =
8938 row_highlights.binary_search_by(|(_, highlight_range, _)| {
8939 highlight_range
8940 .start
8941 .cmp(&rows.start, &multi_buffer_snapshot)
8942 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
8943 });
8944 match color {
8945 Some(color) => {
8946 let insert_index = match existing_highlight_index {
8947 Ok(i) => i,
8948 Err(i) => i,
8949 };
8950 row_highlights.insert(
8951 insert_index,
8952 (post_inc(&mut self.highlight_order), rows, color),
8953 );
8954 }
8955 None => {
8956 if let Ok(i) = existing_highlight_index {
8957 row_highlights.remove(i);
8958 }
8959 }
8960 }
8961 }
8962 hash_map::Entry::Vacant(v) => {
8963 if let Some(color) = color {
8964 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
8965 }
8966 }
8967 }
8968 }
8969
8970 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
8971 pub fn clear_row_highlights<T: 'static>(&mut self) {
8972 self.highlighted_rows.remove(&TypeId::of::<T>());
8973 }
8974
8975 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
8976 pub fn highlighted_rows<T: 'static>(
8977 &self,
8978 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
8979 Some(
8980 self.highlighted_rows
8981 .get(&TypeId::of::<T>())?
8982 .iter()
8983 .map(|(_, range, color)| (range, color)),
8984 )
8985 }
8986
8987 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
8988 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
8989 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
8990 let snapshot = self.snapshot(cx);
8991 let mut used_highlight_orders = HashMap::default();
8992 self.highlighted_rows
8993 .iter()
8994 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
8995 .fold(
8996 BTreeMap::<u32, Hsla>::new(),
8997 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
8998 let start_row = anchor_range.start.to_display_point(&snapshot).row();
8999 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9000 for row in start_row..=end_row {
9001 let used_index =
9002 used_highlight_orders.entry(row).or_insert(*highlight_order);
9003 if highlight_order >= used_index {
9004 *used_index = *highlight_order;
9005 unique_rows.insert(row, *hsla);
9006 }
9007 }
9008 unique_rows
9009 },
9010 )
9011 }
9012
9013 pub fn highlight_background<T: 'static>(
9014 &mut self,
9015 ranges: Vec<Range<Anchor>>,
9016 color_fetcher: fn(&ThemeColors) -> Hsla,
9017 cx: &mut ViewContext<Self>,
9018 ) {
9019 let snapshot = self.snapshot(cx);
9020 // this is to try and catch a panic sooner
9021 for range in &ranges {
9022 snapshot
9023 .buffer_snapshot
9024 .summary_for_anchor::<usize>(&range.start);
9025 snapshot
9026 .buffer_snapshot
9027 .summary_for_anchor::<usize>(&range.end);
9028 }
9029
9030 self.background_highlights
9031 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9032 cx.notify();
9033 }
9034
9035 pub fn clear_background_highlights<T: 'static>(
9036 &mut self,
9037 _cx: &mut ViewContext<Self>,
9038 ) -> Option<BackgroundHighlight> {
9039 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9040 text_highlights
9041 }
9042
9043 #[cfg(feature = "test-support")]
9044 pub fn all_text_background_highlights(
9045 &mut self,
9046 cx: &mut ViewContext<Self>,
9047 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9048 let snapshot = self.snapshot(cx);
9049 let buffer = &snapshot.buffer_snapshot;
9050 let start = buffer.anchor_before(0);
9051 let end = buffer.anchor_after(buffer.len());
9052 let theme = cx.theme().colors();
9053 self.background_highlights_in_range(start..end, &snapshot, theme)
9054 }
9055
9056 fn document_highlights_for_position<'a>(
9057 &'a self,
9058 position: Anchor,
9059 buffer: &'a MultiBufferSnapshot,
9060 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9061 let read_highlights = self
9062 .background_highlights
9063 .get(&TypeId::of::<DocumentHighlightRead>())
9064 .map(|h| &h.1);
9065 let write_highlights = self
9066 .background_highlights
9067 .get(&TypeId::of::<DocumentHighlightWrite>())
9068 .map(|h| &h.1);
9069 let left_position = position.bias_left(buffer);
9070 let right_position = position.bias_right(buffer);
9071 read_highlights
9072 .into_iter()
9073 .chain(write_highlights)
9074 .flat_map(move |ranges| {
9075 let start_ix = match ranges.binary_search_by(|probe| {
9076 let cmp = probe.end.cmp(&left_position, buffer);
9077 if cmp.is_ge() {
9078 Ordering::Greater
9079 } else {
9080 Ordering::Less
9081 }
9082 }) {
9083 Ok(i) | Err(i) => i,
9084 };
9085
9086 ranges[start_ix..]
9087 .iter()
9088 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9089 })
9090 }
9091
9092 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9093 self.background_highlights
9094 .get(&TypeId::of::<T>())
9095 .map_or(false, |(_, highlights)| !highlights.is_empty())
9096 }
9097
9098 pub fn background_highlights_in_range(
9099 &self,
9100 search_range: Range<Anchor>,
9101 display_snapshot: &DisplaySnapshot,
9102 theme: &ThemeColors,
9103 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9104 let mut results = Vec::new();
9105 for (color_fetcher, ranges) in self.background_highlights.values() {
9106 let color = color_fetcher(theme);
9107 let start_ix = match ranges.binary_search_by(|probe| {
9108 let cmp = probe
9109 .end
9110 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9111 if cmp.is_gt() {
9112 Ordering::Greater
9113 } else {
9114 Ordering::Less
9115 }
9116 }) {
9117 Ok(i) | Err(i) => i,
9118 };
9119 for range in &ranges[start_ix..] {
9120 if range
9121 .start
9122 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9123 .is_ge()
9124 {
9125 break;
9126 }
9127
9128 let start = range.start.to_display_point(&display_snapshot);
9129 let end = range.end.to_display_point(&display_snapshot);
9130 results.push((start..end, color))
9131 }
9132 }
9133 results
9134 }
9135
9136 pub fn background_highlight_row_ranges<T: 'static>(
9137 &self,
9138 search_range: Range<Anchor>,
9139 display_snapshot: &DisplaySnapshot,
9140 count: usize,
9141 ) -> Vec<RangeInclusive<DisplayPoint>> {
9142 let mut results = Vec::new();
9143 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9144 return vec![];
9145 };
9146
9147 let start_ix = match ranges.binary_search_by(|probe| {
9148 let cmp = probe
9149 .end
9150 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9151 if cmp.is_gt() {
9152 Ordering::Greater
9153 } else {
9154 Ordering::Less
9155 }
9156 }) {
9157 Ok(i) | Err(i) => i,
9158 };
9159 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9160 if let (Some(start_display), Some(end_display)) = (start, end) {
9161 results.push(
9162 start_display.to_display_point(display_snapshot)
9163 ..=end_display.to_display_point(display_snapshot),
9164 );
9165 }
9166 };
9167 let mut start_row: Option<Point> = None;
9168 let mut end_row: Option<Point> = None;
9169 if ranges.len() > count {
9170 return Vec::new();
9171 }
9172 for range in &ranges[start_ix..] {
9173 if range
9174 .start
9175 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9176 .is_ge()
9177 {
9178 break;
9179 }
9180 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9181 if let Some(current_row) = &end_row {
9182 if end.row == current_row.row {
9183 continue;
9184 }
9185 }
9186 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9187 if start_row.is_none() {
9188 assert_eq!(end_row, None);
9189 start_row = Some(start);
9190 end_row = Some(end);
9191 continue;
9192 }
9193 if let Some(current_end) = end_row.as_mut() {
9194 if start.row > current_end.row + 1 {
9195 push_region(start_row, end_row);
9196 start_row = Some(start);
9197 end_row = Some(end);
9198 } else {
9199 // Merge two hunks.
9200 *current_end = end;
9201 }
9202 } else {
9203 unreachable!();
9204 }
9205 }
9206 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9207 push_region(start_row, end_row);
9208 results
9209 }
9210
9211 /// Get the text ranges corresponding to the redaction query
9212 pub fn redacted_ranges(
9213 &self,
9214 search_range: Range<Anchor>,
9215 display_snapshot: &DisplaySnapshot,
9216 cx: &WindowContext,
9217 ) -> Vec<Range<DisplayPoint>> {
9218 display_snapshot
9219 .buffer_snapshot
9220 .redacted_ranges(search_range, |file| {
9221 if let Some(file) = file {
9222 file.is_private()
9223 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
9224 .redact_private_values
9225 } else {
9226 false
9227 }
9228 })
9229 .map(|range| {
9230 range.start.to_display_point(display_snapshot)
9231 ..range.end.to_display_point(display_snapshot)
9232 })
9233 .collect()
9234 }
9235
9236 pub fn highlight_text<T: 'static>(
9237 &mut self,
9238 ranges: Vec<Range<Anchor>>,
9239 style: HighlightStyle,
9240 cx: &mut ViewContext<Self>,
9241 ) {
9242 self.display_map.update(cx, |map, _| {
9243 map.highlight_text(TypeId::of::<T>(), ranges, style)
9244 });
9245 cx.notify();
9246 }
9247
9248 pub(crate) fn highlight_inlays<T: 'static>(
9249 &mut self,
9250 highlights: Vec<InlayHighlight>,
9251 style: HighlightStyle,
9252 cx: &mut ViewContext<Self>,
9253 ) {
9254 self.display_map.update(cx, |map, _| {
9255 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9256 });
9257 cx.notify();
9258 }
9259
9260 pub fn text_highlights<'a, T: 'static>(
9261 &'a self,
9262 cx: &'a AppContext,
9263 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9264 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9265 }
9266
9267 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9268 let cleared = self
9269 .display_map
9270 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9271 if cleared {
9272 cx.notify();
9273 }
9274 }
9275
9276 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9277 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9278 && self.focus_handle.is_focused(cx)
9279 }
9280
9281 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9282 cx.notify();
9283 }
9284
9285 fn on_buffer_event(
9286 &mut self,
9287 multibuffer: Model<MultiBuffer>,
9288 event: &multi_buffer::Event,
9289 cx: &mut ViewContext<Self>,
9290 ) {
9291 match event {
9292 multi_buffer::Event::Edited {
9293 singleton_buffer_edited,
9294 } => {
9295 self.refresh_active_diagnostics(cx);
9296 self.refresh_code_actions(cx);
9297 if self.has_active_copilot_suggestion(cx) {
9298 self.update_visible_copilot_suggestion(cx);
9299 }
9300 cx.emit(EditorEvent::BufferEdited);
9301 cx.emit(SearchEvent::MatchesInvalidated);
9302
9303 if *singleton_buffer_edited {
9304 if let Some(project) = &self.project {
9305 let project = project.read(cx);
9306 let languages_affected = multibuffer
9307 .read(cx)
9308 .all_buffers()
9309 .into_iter()
9310 .filter_map(|buffer| {
9311 let buffer = buffer.read(cx);
9312 let language = buffer.language()?;
9313 if project.is_local()
9314 && project.language_servers_for_buffer(buffer, cx).count() == 0
9315 {
9316 None
9317 } else {
9318 Some(language)
9319 }
9320 })
9321 .cloned()
9322 .collect::<HashSet<_>>();
9323 if !languages_affected.is_empty() {
9324 self.refresh_inlay_hints(
9325 InlayHintRefreshReason::BufferEdited(languages_affected),
9326 cx,
9327 );
9328 }
9329 }
9330 }
9331
9332 let Some(project) = &self.project else { return };
9333 let telemetry = project.read(cx).client().telemetry().clone();
9334 telemetry.log_edit_event("editor");
9335 }
9336 multi_buffer::Event::ExcerptsAdded {
9337 buffer,
9338 predecessor,
9339 excerpts,
9340 } => {
9341 cx.emit(EditorEvent::ExcerptsAdded {
9342 buffer: buffer.clone(),
9343 predecessor: *predecessor,
9344 excerpts: excerpts.clone(),
9345 });
9346 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9347 }
9348 multi_buffer::Event::ExcerptsRemoved { ids } => {
9349 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9350 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9351 }
9352 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9353 multi_buffer::Event::LanguageChanged => {
9354 cx.emit(EditorEvent::Reparsed);
9355 cx.notify();
9356 }
9357 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9358 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9359 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9360 cx.emit(EditorEvent::TitleChanged)
9361 }
9362 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9363 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9364 multi_buffer::Event::DiagnosticsUpdated => {
9365 self.refresh_active_diagnostics(cx);
9366 }
9367 _ => {}
9368 };
9369 }
9370
9371 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9372 cx.notify();
9373 }
9374
9375 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9376 self.refresh_copilot_suggestions(true, cx);
9377 self.refresh_inlay_hints(
9378 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9379 self.selections.newest_anchor().head(),
9380 &self.buffer.read(cx).snapshot(cx),
9381 cx,
9382 )),
9383 cx,
9384 );
9385 let editor_settings = EditorSettings::get_global(cx);
9386 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9387 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9388 cx.notify();
9389 }
9390
9391 pub fn set_searchable(&mut self, searchable: bool) {
9392 self.searchable = searchable;
9393 }
9394
9395 pub fn searchable(&self) -> bool {
9396 self.searchable
9397 }
9398
9399 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9400 self.open_excerpts_common(true, cx)
9401 }
9402
9403 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9404 self.open_excerpts_common(false, cx)
9405 }
9406
9407 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9408 let buffer = self.buffer.read(cx);
9409 if buffer.is_singleton() {
9410 cx.propagate();
9411 return;
9412 }
9413
9414 let Some(workspace) = self.workspace() else {
9415 cx.propagate();
9416 return;
9417 };
9418
9419 let mut new_selections_by_buffer = HashMap::default();
9420 for selection in self.selections.all::<usize>(cx) {
9421 for (buffer, mut range, _) in
9422 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9423 {
9424 if selection.reversed {
9425 mem::swap(&mut range.start, &mut range.end);
9426 }
9427 new_selections_by_buffer
9428 .entry(buffer)
9429 .or_insert(Vec::new())
9430 .push(range)
9431 }
9432 }
9433
9434 // We defer the pane interaction because we ourselves are a workspace item
9435 // and activating a new item causes the pane to call a method on us reentrantly,
9436 // which panics if we're on the stack.
9437 cx.window_context().defer(move |cx| {
9438 workspace.update(cx, |workspace, cx| {
9439 let pane = if split {
9440 workspace.adjacent_pane(cx)
9441 } else {
9442 workspace.active_pane().clone()
9443 };
9444 pane.update(cx, |pane, _| pane.disable_history());
9445
9446 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9447 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9448 editor.update(cx, |editor, cx| {
9449 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9450 s.select_ranges(ranges);
9451 });
9452 });
9453 }
9454
9455 pane.update(cx, |pane, _| pane.enable_history());
9456 })
9457 });
9458 }
9459
9460 fn jump(
9461 &mut self,
9462 path: ProjectPath,
9463 position: Point,
9464 anchor: language::Anchor,
9465 cx: &mut ViewContext<Self>,
9466 ) {
9467 let workspace = self.workspace();
9468 cx.spawn(|_, mut cx| async move {
9469 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9470 let editor = workspace.update(&mut cx, |workspace, cx| {
9471 workspace.open_path(path, None, true, cx)
9472 })?;
9473 let editor = editor
9474 .await?
9475 .downcast::<Editor>()
9476 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9477 .downgrade();
9478 editor.update(&mut cx, |editor, cx| {
9479 let buffer = editor
9480 .buffer()
9481 .read(cx)
9482 .as_singleton()
9483 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9484 let buffer = buffer.read(cx);
9485 let cursor = if buffer.can_resolve(&anchor) {
9486 language::ToPoint::to_point(&anchor, buffer)
9487 } else {
9488 buffer.clip_point(position, Bias::Left)
9489 };
9490
9491 let nav_history = editor.nav_history.take();
9492 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9493 s.select_ranges([cursor..cursor]);
9494 });
9495 editor.nav_history = nav_history;
9496
9497 anyhow::Ok(())
9498 })??;
9499
9500 anyhow::Ok(())
9501 })
9502 .detach_and_log_err(cx);
9503 }
9504
9505 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9506 let snapshot = self.buffer.read(cx).read(cx);
9507 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9508 Some(
9509 ranges
9510 .iter()
9511 .map(move |range| {
9512 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9513 })
9514 .collect(),
9515 )
9516 }
9517
9518 fn selection_replacement_ranges(
9519 &self,
9520 range: Range<OffsetUtf16>,
9521 cx: &AppContext,
9522 ) -> Vec<Range<OffsetUtf16>> {
9523 let selections = self.selections.all::<OffsetUtf16>(cx);
9524 let newest_selection = selections
9525 .iter()
9526 .max_by_key(|selection| selection.id)
9527 .unwrap();
9528 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9529 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9530 let snapshot = self.buffer.read(cx).read(cx);
9531 selections
9532 .into_iter()
9533 .map(|mut selection| {
9534 selection.start.0 =
9535 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9536 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9537 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9538 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9539 })
9540 .collect()
9541 }
9542
9543 fn report_copilot_event(
9544 &self,
9545 suggestion_id: Option<String>,
9546 suggestion_accepted: bool,
9547 cx: &AppContext,
9548 ) {
9549 let Some(project) = &self.project else { return };
9550
9551 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9552 let file_extension = self
9553 .buffer
9554 .read(cx)
9555 .as_singleton()
9556 .and_then(|b| b.read(cx).file())
9557 .and_then(|file| Path::new(file.file_name(cx)).extension())
9558 .and_then(|e| e.to_str())
9559 .map(|a| a.to_string());
9560
9561 let telemetry = project.read(cx).client().telemetry().clone();
9562
9563 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9564 }
9565
9566 #[cfg(any(test, feature = "test-support"))]
9567 fn report_editor_event(
9568 &self,
9569 _operation: &'static str,
9570 _file_extension: Option<String>,
9571 _cx: &AppContext,
9572 ) {
9573 }
9574
9575 #[cfg(not(any(test, feature = "test-support")))]
9576 fn report_editor_event(
9577 &self,
9578 operation: &'static str,
9579 file_extension: Option<String>,
9580 cx: &AppContext,
9581 ) {
9582 let Some(project) = &self.project else { return };
9583
9584 // If None, we are in a file without an extension
9585 let file = self
9586 .buffer
9587 .read(cx)
9588 .as_singleton()
9589 .and_then(|b| b.read(cx).file());
9590 let file_extension = file_extension.or(file
9591 .as_ref()
9592 .and_then(|file| Path::new(file.file_name(cx)).extension())
9593 .and_then(|e| e.to_str())
9594 .map(|a| a.to_string()));
9595
9596 let vim_mode = cx
9597 .global::<SettingsStore>()
9598 .raw_user_settings()
9599 .get("vim_mode")
9600 == Some(&serde_json::Value::Bool(true));
9601 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9602 let copilot_enabled_for_language = self
9603 .buffer
9604 .read(cx)
9605 .settings_at(0, cx)
9606 .show_copilot_suggestions;
9607
9608 let telemetry = project.read(cx).client().telemetry().clone();
9609 telemetry.report_editor_event(
9610 file_extension,
9611 vim_mode,
9612 operation,
9613 copilot_enabled,
9614 copilot_enabled_for_language,
9615 )
9616 }
9617
9618 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9619 /// with each line being an array of {text, highlight} objects.
9620 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9621 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9622 return;
9623 };
9624
9625 #[derive(Serialize)]
9626 struct Chunk<'a> {
9627 text: String,
9628 highlight: Option<&'a str>,
9629 }
9630
9631 let snapshot = buffer.read(cx).snapshot();
9632 let range = self
9633 .selected_text_range(cx)
9634 .and_then(|selected_range| {
9635 if selected_range.is_empty() {
9636 None
9637 } else {
9638 Some(selected_range)
9639 }
9640 })
9641 .unwrap_or_else(|| 0..snapshot.len());
9642
9643 let chunks = snapshot.chunks(range, true);
9644 let mut lines = Vec::new();
9645 let mut line: VecDeque<Chunk> = VecDeque::new();
9646
9647 let Some(style) = self.style.as_ref() else {
9648 return;
9649 };
9650
9651 for chunk in chunks {
9652 let highlight = chunk
9653 .syntax_highlight_id
9654 .and_then(|id| id.name(&style.syntax));
9655 let mut chunk_lines = chunk.text.split('\n').peekable();
9656 while let Some(text) = chunk_lines.next() {
9657 let mut merged_with_last_token = false;
9658 if let Some(last_token) = line.back_mut() {
9659 if last_token.highlight == highlight {
9660 last_token.text.push_str(text);
9661 merged_with_last_token = true;
9662 }
9663 }
9664
9665 if !merged_with_last_token {
9666 line.push_back(Chunk {
9667 text: text.into(),
9668 highlight,
9669 });
9670 }
9671
9672 if chunk_lines.peek().is_some() {
9673 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9674 line.pop_front();
9675 }
9676 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9677 line.pop_back();
9678 }
9679
9680 lines.push(mem::take(&mut line));
9681 }
9682 }
9683 }
9684
9685 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9686 return;
9687 };
9688 cx.write_to_clipboard(ClipboardItem::new(lines));
9689 }
9690
9691 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9692 &self.inlay_hint_cache
9693 }
9694
9695 pub fn replay_insert_event(
9696 &mut self,
9697 text: &str,
9698 relative_utf16_range: Option<Range<isize>>,
9699 cx: &mut ViewContext<Self>,
9700 ) {
9701 if !self.input_enabled {
9702 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9703 return;
9704 }
9705 if let Some(relative_utf16_range) = relative_utf16_range {
9706 let selections = self.selections.all::<OffsetUtf16>(cx);
9707 self.change_selections(None, cx, |s| {
9708 let new_ranges = selections.into_iter().map(|range| {
9709 let start = OffsetUtf16(
9710 range
9711 .head()
9712 .0
9713 .saturating_add_signed(relative_utf16_range.start),
9714 );
9715 let end = OffsetUtf16(
9716 range
9717 .head()
9718 .0
9719 .saturating_add_signed(relative_utf16_range.end),
9720 );
9721 start..end
9722 });
9723 s.select_ranges(new_ranges);
9724 });
9725 }
9726
9727 self.handle_input(text, cx);
9728 }
9729
9730 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9731 let Some(project) = self.project.as_ref() else {
9732 return false;
9733 };
9734 let project = project.read(cx);
9735
9736 let mut supports = false;
9737 self.buffer().read(cx).for_each_buffer(|buffer| {
9738 if !supports {
9739 supports = project
9740 .language_servers_for_buffer(buffer.read(cx), cx)
9741 .any(
9742 |(_, server)| match server.capabilities().inlay_hint_provider {
9743 Some(lsp::OneOf::Left(enabled)) => enabled,
9744 Some(lsp::OneOf::Right(_)) => true,
9745 None => false,
9746 },
9747 )
9748 }
9749 });
9750 supports
9751 }
9752
9753 pub fn focus(&self, cx: &mut WindowContext) {
9754 cx.focus(&self.focus_handle)
9755 }
9756
9757 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9758 self.focus_handle.is_focused(cx)
9759 }
9760
9761 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9762 cx.emit(EditorEvent::Focused);
9763
9764 if let Some(rename) = self.pending_rename.as_ref() {
9765 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9766 cx.focus(&rename_editor_focus_handle);
9767 } else {
9768 self.blink_manager.update(cx, BlinkManager::enable);
9769 self.show_cursor_names(cx);
9770 self.buffer.update(cx, |buffer, cx| {
9771 buffer.finalize_last_transaction(cx);
9772 if self.leader_peer_id.is_none() {
9773 buffer.set_active_selections(
9774 &self.selections.disjoint_anchors(),
9775 self.selections.line_mode,
9776 self.cursor_shape,
9777 cx,
9778 );
9779 }
9780 });
9781 }
9782 }
9783
9784 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9785 self.blink_manager.update(cx, BlinkManager::disable);
9786 self.buffer
9787 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9788 self.hide_context_menu(cx);
9789 hide_hover(self, cx);
9790 cx.emit(EditorEvent::Blurred);
9791 cx.notify();
9792 }
9793
9794 pub fn register_action<A: Action>(
9795 &mut self,
9796 listener: impl Fn(&A, &mut WindowContext) + 'static,
9797 ) -> &mut Self {
9798 let listener = Arc::new(listener);
9799
9800 self.editor_actions.push(Box::new(move |cx| {
9801 let _view = cx.view().clone();
9802 let cx = cx.window_context();
9803 let listener = listener.clone();
9804 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9805 let action = action.downcast_ref().unwrap();
9806 if phase == DispatchPhase::Bubble {
9807 listener(action, cx)
9808 }
9809 })
9810 }));
9811 self
9812 }
9813}
9814
9815pub trait CollaborationHub {
9816 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9817 fn user_participant_indices<'a>(
9818 &self,
9819 cx: &'a AppContext,
9820 ) -> &'a HashMap<u64, ParticipantIndex>;
9821 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9822}
9823
9824impl CollaborationHub for Model<Project> {
9825 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9826 self.read(cx).collaborators()
9827 }
9828
9829 fn user_participant_indices<'a>(
9830 &self,
9831 cx: &'a AppContext,
9832 ) -> &'a HashMap<u64, ParticipantIndex> {
9833 self.read(cx).user_store().read(cx).participant_indices()
9834 }
9835
9836 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9837 let this = self.read(cx);
9838 let user_ids = this.collaborators().values().map(|c| c.user_id);
9839 this.user_store().read_with(cx, |user_store, cx| {
9840 user_store.participant_names(user_ids, cx)
9841 })
9842 }
9843}
9844
9845pub trait CompletionProvider {
9846 fn completions(
9847 &self,
9848 buffer: &Model<Buffer>,
9849 buffer_position: text::Anchor,
9850 cx: &mut ViewContext<Editor>,
9851 ) -> Task<Result<Vec<Completion>>>;
9852
9853 fn resolve_completions(
9854 &self,
9855 completion_indices: Vec<usize>,
9856 completions: Arc<RwLock<Box<[Completion]>>>,
9857 cx: &mut ViewContext<Editor>,
9858 ) -> Task<Result<bool>>;
9859
9860 fn apply_additional_edits_for_completion(
9861 &self,
9862 buffer: Model<Buffer>,
9863 completion: Completion,
9864 push_to_history: bool,
9865 cx: &mut ViewContext<Editor>,
9866 ) -> Task<Result<Option<language::Transaction>>>;
9867}
9868
9869impl CompletionProvider for Model<Project> {
9870 fn completions(
9871 &self,
9872 buffer: &Model<Buffer>,
9873 buffer_position: text::Anchor,
9874 cx: &mut ViewContext<Editor>,
9875 ) -> Task<Result<Vec<Completion>>> {
9876 self.update(cx, |project, cx| {
9877 project.completions(&buffer, buffer_position, cx)
9878 })
9879 }
9880
9881 fn resolve_completions(
9882 &self,
9883 completion_indices: Vec<usize>,
9884 completions: Arc<RwLock<Box<[Completion]>>>,
9885 cx: &mut ViewContext<Editor>,
9886 ) -> Task<Result<bool>> {
9887 self.update(cx, |project, cx| {
9888 project.resolve_completions(completion_indices, completions, cx)
9889 })
9890 }
9891
9892 fn apply_additional_edits_for_completion(
9893 &self,
9894 buffer: Model<Buffer>,
9895 completion: Completion,
9896 push_to_history: bool,
9897 cx: &mut ViewContext<Editor>,
9898 ) -> Task<Result<Option<language::Transaction>>> {
9899 self.update(cx, |project, cx| {
9900 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9901 })
9902 }
9903}
9904
9905fn inlay_hint_settings(
9906 location: Anchor,
9907 snapshot: &MultiBufferSnapshot,
9908 cx: &mut ViewContext<'_, Editor>,
9909) -> InlayHintSettings {
9910 let file = snapshot.file_at(location);
9911 let language = snapshot.language_at(location);
9912 let settings = all_language_settings(file, cx);
9913 settings
9914 .language(language.map(|l| l.name()).as_deref())
9915 .inlay_hints
9916}
9917
9918fn consume_contiguous_rows(
9919 contiguous_row_selections: &mut Vec<Selection<Point>>,
9920 selection: &Selection<Point>,
9921 display_map: &DisplaySnapshot,
9922 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9923) -> (u32, u32) {
9924 contiguous_row_selections.push(selection.clone());
9925 let start_row = selection.start.row;
9926 let mut end_row = ending_row(selection, display_map);
9927
9928 while let Some(next_selection) = selections.peek() {
9929 if next_selection.start.row <= end_row {
9930 end_row = ending_row(next_selection, display_map);
9931 contiguous_row_selections.push(selections.next().unwrap().clone());
9932 } else {
9933 break;
9934 }
9935 }
9936 (start_row, end_row)
9937}
9938
9939fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9940 if next_selection.end.column > 0 || next_selection.is_empty() {
9941 display_map.next_line_boundary(next_selection.end).0.row + 1
9942 } else {
9943 next_selection.end.row
9944 }
9945}
9946
9947impl EditorSnapshot {
9948 pub fn remote_selections_in_range<'a>(
9949 &'a self,
9950 range: &'a Range<Anchor>,
9951 collaboration_hub: &dyn CollaborationHub,
9952 cx: &'a AppContext,
9953 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9954 let participant_names = collaboration_hub.user_names(cx);
9955 let participant_indices = collaboration_hub.user_participant_indices(cx);
9956 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9957 let collaborators_by_replica_id = collaborators_by_peer_id
9958 .iter()
9959 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9960 .collect::<HashMap<_, _>>();
9961 self.buffer_snapshot
9962 .remote_selections_in_range(range)
9963 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9964 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9965 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9966 let user_name = participant_names.get(&collaborator.user_id).cloned();
9967 Some(RemoteSelection {
9968 replica_id,
9969 selection,
9970 cursor_shape,
9971 line_mode,
9972 participant_index,
9973 peer_id: collaborator.peer_id,
9974 user_name,
9975 })
9976 })
9977 }
9978
9979 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9980 self.display_snapshot.buffer_snapshot.language_at(position)
9981 }
9982
9983 pub fn is_focused(&self) -> bool {
9984 self.is_focused
9985 }
9986
9987 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9988 self.placeholder_text.as_ref()
9989 }
9990
9991 pub fn scroll_position(&self) -> gpui::Point<f32> {
9992 self.scroll_anchor.scroll_position(&self.display_snapshot)
9993 }
9994
9995 pub fn gutter_dimensions(
9996 &self,
9997 font_id: FontId,
9998 font_size: Pixels,
9999 em_width: Pixels,
10000 max_line_number_width: Pixels,
10001 cx: &AppContext,
10002 ) -> GutterDimensions {
10003 if !self.show_gutter {
10004 return GutterDimensions::default();
10005 }
10006 let descent = cx.text_system().descent(font_id, font_size);
10007
10008 let show_git_gutter = matches!(
10009 ProjectSettings::get_global(cx).git.git_gutter,
10010 Some(GitGutterSetting::TrackedFiles)
10011 );
10012 let gutter_settings = EditorSettings::get_global(cx).gutter;
10013
10014 let line_gutter_width = if gutter_settings.line_numbers {
10015 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10016 let min_width_for_number_on_gutter = em_width * 4.0;
10017 max_line_number_width.max(min_width_for_number_on_gutter)
10018 } else {
10019 0.0.into()
10020 };
10021
10022 let left_padding = if gutter_settings.code_actions {
10023 em_width * 3.0
10024 } else if show_git_gutter && gutter_settings.line_numbers {
10025 em_width * 2.0
10026 } else if show_git_gutter || gutter_settings.line_numbers {
10027 em_width
10028 } else {
10029 px(0.)
10030 };
10031
10032 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10033 em_width * 4.0
10034 } else if gutter_settings.folds {
10035 em_width * 3.0
10036 } else if gutter_settings.line_numbers {
10037 em_width
10038 } else {
10039 px(0.)
10040 };
10041
10042 GutterDimensions {
10043 left_padding,
10044 right_padding,
10045 width: line_gutter_width + left_padding + right_padding,
10046 margin: -descent,
10047 }
10048 }
10049}
10050
10051impl Deref for EditorSnapshot {
10052 type Target = DisplaySnapshot;
10053
10054 fn deref(&self) -> &Self::Target {
10055 &self.display_snapshot
10056 }
10057}
10058
10059#[derive(Clone, Debug, PartialEq, Eq)]
10060pub enum EditorEvent {
10061 InputIgnored {
10062 text: Arc<str>,
10063 },
10064 InputHandled {
10065 utf16_range_to_replace: Option<Range<isize>>,
10066 text: Arc<str>,
10067 },
10068 ExcerptsAdded {
10069 buffer: Model<Buffer>,
10070 predecessor: ExcerptId,
10071 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10072 },
10073 ExcerptsRemoved {
10074 ids: Vec<ExcerptId>,
10075 },
10076 BufferEdited,
10077 Edited,
10078 Reparsed,
10079 Focused,
10080 Blurred,
10081 DirtyChanged,
10082 Saved,
10083 TitleChanged,
10084 DiffBaseChanged,
10085 SelectionsChanged {
10086 local: bool,
10087 },
10088 ScrollPositionChanged {
10089 local: bool,
10090 autoscroll: bool,
10091 },
10092 Closed,
10093}
10094
10095impl EventEmitter<EditorEvent> for Editor {}
10096
10097impl FocusableView for Editor {
10098 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10099 self.focus_handle.clone()
10100 }
10101}
10102
10103impl Render for Editor {
10104 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10105 let settings = ThemeSettings::get_global(cx);
10106 let text_style = match self.mode {
10107 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10108 color: cx.theme().colors().editor_foreground,
10109 font_family: settings.ui_font.family.clone(),
10110 font_features: settings.ui_font.features,
10111 font_size: rems(0.875).into(),
10112 font_weight: FontWeight::NORMAL,
10113 font_style: FontStyle::Normal,
10114 line_height: relative(settings.buffer_line_height.value()),
10115 background_color: None,
10116 underline: None,
10117 strikethrough: None,
10118 white_space: WhiteSpace::Normal,
10119 },
10120
10121 EditorMode::Full => TextStyle {
10122 color: cx.theme().colors().editor_foreground,
10123 font_family: settings.buffer_font.family.clone(),
10124 font_features: settings.buffer_font.features,
10125 font_size: settings.buffer_font_size(cx).into(),
10126 font_weight: FontWeight::NORMAL,
10127 font_style: FontStyle::Normal,
10128 line_height: relative(settings.buffer_line_height.value()),
10129 background_color: None,
10130 underline: None,
10131 strikethrough: None,
10132 white_space: WhiteSpace::Normal,
10133 },
10134 };
10135
10136 let background = match self.mode {
10137 EditorMode::SingleLine => cx.theme().system().transparent,
10138 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10139 EditorMode::Full => cx.theme().colors().editor_background,
10140 };
10141
10142 EditorElement::new(
10143 cx.view(),
10144 EditorStyle {
10145 background,
10146 local_player: cx.theme().players().local(),
10147 text: text_style,
10148 scrollbar_width: px(12.),
10149 syntax: cx.theme().syntax().clone(),
10150 status: cx.theme().status().clone(),
10151 inlay_hints_style: HighlightStyle {
10152 color: Some(cx.theme().status().hint),
10153 ..HighlightStyle::default()
10154 },
10155 suggestions_style: HighlightStyle {
10156 color: Some(cx.theme().status().predictive),
10157 ..HighlightStyle::default()
10158 },
10159 },
10160 )
10161 }
10162}
10163
10164impl ViewInputHandler for Editor {
10165 fn text_for_range(
10166 &mut self,
10167 range_utf16: Range<usize>,
10168 cx: &mut ViewContext<Self>,
10169 ) -> Option<String> {
10170 Some(
10171 self.buffer
10172 .read(cx)
10173 .read(cx)
10174 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10175 .collect(),
10176 )
10177 }
10178
10179 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10180 // Prevent the IME menu from appearing when holding down an alphabetic key
10181 // while input is disabled.
10182 if !self.input_enabled {
10183 return None;
10184 }
10185
10186 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10187 Some(range.start.0..range.end.0)
10188 }
10189
10190 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10191 let snapshot = self.buffer.read(cx).read(cx);
10192 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10193 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10194 }
10195
10196 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10197 self.clear_highlights::<InputComposition>(cx);
10198 self.ime_transaction.take();
10199 }
10200
10201 fn replace_text_in_range(
10202 &mut self,
10203 range_utf16: Option<Range<usize>>,
10204 text: &str,
10205 cx: &mut ViewContext<Self>,
10206 ) {
10207 if !self.input_enabled {
10208 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10209 return;
10210 }
10211
10212 self.transact(cx, |this, cx| {
10213 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10214 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10215 Some(this.selection_replacement_ranges(range_utf16, cx))
10216 } else {
10217 this.marked_text_ranges(cx)
10218 };
10219
10220 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10221 let newest_selection_id = this.selections.newest_anchor().id;
10222 this.selections
10223 .all::<OffsetUtf16>(cx)
10224 .iter()
10225 .zip(ranges_to_replace.iter())
10226 .find_map(|(selection, range)| {
10227 if selection.id == newest_selection_id {
10228 Some(
10229 (range.start.0 as isize - selection.head().0 as isize)
10230 ..(range.end.0 as isize - selection.head().0 as isize),
10231 )
10232 } else {
10233 None
10234 }
10235 })
10236 });
10237
10238 cx.emit(EditorEvent::InputHandled {
10239 utf16_range_to_replace: range_to_replace,
10240 text: text.into(),
10241 });
10242
10243 if let Some(new_selected_ranges) = new_selected_ranges {
10244 this.change_selections(None, cx, |selections| {
10245 selections.select_ranges(new_selected_ranges)
10246 });
10247 this.backspace(&Default::default(), cx);
10248 }
10249
10250 this.handle_input(text, cx);
10251 });
10252
10253 if let Some(transaction) = self.ime_transaction {
10254 self.buffer.update(cx, |buffer, cx| {
10255 buffer.group_until_transaction(transaction, cx);
10256 });
10257 }
10258
10259 self.unmark_text(cx);
10260 }
10261
10262 fn replace_and_mark_text_in_range(
10263 &mut self,
10264 range_utf16: Option<Range<usize>>,
10265 text: &str,
10266 new_selected_range_utf16: Option<Range<usize>>,
10267 cx: &mut ViewContext<Self>,
10268 ) {
10269 if !self.input_enabled {
10270 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10271 return;
10272 }
10273
10274 let transaction = self.transact(cx, |this, cx| {
10275 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10276 let snapshot = this.buffer.read(cx).read(cx);
10277 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10278 for marked_range in &mut marked_ranges {
10279 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10280 marked_range.start.0 += relative_range_utf16.start;
10281 marked_range.start =
10282 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10283 marked_range.end =
10284 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10285 }
10286 }
10287 Some(marked_ranges)
10288 } else if let Some(range_utf16) = range_utf16 {
10289 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10290 Some(this.selection_replacement_ranges(range_utf16, cx))
10291 } else {
10292 None
10293 };
10294
10295 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10296 let newest_selection_id = this.selections.newest_anchor().id;
10297 this.selections
10298 .all::<OffsetUtf16>(cx)
10299 .iter()
10300 .zip(ranges_to_replace.iter())
10301 .find_map(|(selection, range)| {
10302 if selection.id == newest_selection_id {
10303 Some(
10304 (range.start.0 as isize - selection.head().0 as isize)
10305 ..(range.end.0 as isize - selection.head().0 as isize),
10306 )
10307 } else {
10308 None
10309 }
10310 })
10311 });
10312
10313 cx.emit(EditorEvent::InputHandled {
10314 utf16_range_to_replace: range_to_replace,
10315 text: text.into(),
10316 });
10317
10318 if let Some(ranges) = ranges_to_replace {
10319 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10320 }
10321
10322 let marked_ranges = {
10323 let snapshot = this.buffer.read(cx).read(cx);
10324 this.selections
10325 .disjoint_anchors()
10326 .iter()
10327 .map(|selection| {
10328 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10329 })
10330 .collect::<Vec<_>>()
10331 };
10332
10333 if text.is_empty() {
10334 this.unmark_text(cx);
10335 } else {
10336 this.highlight_text::<InputComposition>(
10337 marked_ranges.clone(),
10338 HighlightStyle {
10339 underline: Some(UnderlineStyle {
10340 thickness: px(1.),
10341 color: None,
10342 wavy: false,
10343 }),
10344 ..Default::default()
10345 },
10346 cx,
10347 );
10348 }
10349
10350 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10351 let use_autoclose = this.use_autoclose;
10352 this.set_use_autoclose(false);
10353 this.handle_input(text, cx);
10354 this.set_use_autoclose(use_autoclose);
10355
10356 if let Some(new_selected_range) = new_selected_range_utf16 {
10357 let snapshot = this.buffer.read(cx).read(cx);
10358 let new_selected_ranges = marked_ranges
10359 .into_iter()
10360 .map(|marked_range| {
10361 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10362 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10363 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10364 snapshot.clip_offset_utf16(new_start, Bias::Left)
10365 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10366 })
10367 .collect::<Vec<_>>();
10368
10369 drop(snapshot);
10370 this.change_selections(None, cx, |selections| {
10371 selections.select_ranges(new_selected_ranges)
10372 });
10373 }
10374 });
10375
10376 self.ime_transaction = self.ime_transaction.or(transaction);
10377 if let Some(transaction) = self.ime_transaction {
10378 self.buffer.update(cx, |buffer, cx| {
10379 buffer.group_until_transaction(transaction, cx);
10380 });
10381 }
10382
10383 if self.text_highlights::<InputComposition>(cx).is_none() {
10384 self.ime_transaction.take();
10385 }
10386 }
10387
10388 fn bounds_for_range(
10389 &mut self,
10390 range_utf16: Range<usize>,
10391 element_bounds: gpui::Bounds<Pixels>,
10392 cx: &mut ViewContext<Self>,
10393 ) -> Option<gpui::Bounds<Pixels>> {
10394 let text_layout_details = self.text_layout_details(cx);
10395 let style = &text_layout_details.editor_style;
10396 let font_id = cx.text_system().resolve_font(&style.text.font());
10397 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10398 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10399 let em_width = cx
10400 .text_system()
10401 .typographic_bounds(font_id, font_size, 'm')
10402 .unwrap()
10403 .size
10404 .width;
10405
10406 let snapshot = self.snapshot(cx);
10407 let scroll_position = snapshot.scroll_position();
10408 let scroll_left = scroll_position.x * em_width;
10409
10410 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10411 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10412 + self.gutter_width;
10413 let y = line_height * (start.row() as f32 - scroll_position.y);
10414
10415 Some(Bounds {
10416 origin: element_bounds.origin + point(x, y),
10417 size: size(em_width, line_height),
10418 })
10419 }
10420}
10421
10422trait SelectionExt {
10423 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10424 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10425 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10426 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10427 -> Range<u32>;
10428}
10429
10430impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10431 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10432 let start = self.start.to_point(buffer);
10433 let end = self.end.to_point(buffer);
10434 if self.reversed {
10435 end..start
10436 } else {
10437 start..end
10438 }
10439 }
10440
10441 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10442 let start = self.start.to_offset(buffer);
10443 let end = self.end.to_offset(buffer);
10444 if self.reversed {
10445 end..start
10446 } else {
10447 start..end
10448 }
10449 }
10450
10451 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10452 let start = self
10453 .start
10454 .to_point(&map.buffer_snapshot)
10455 .to_display_point(map);
10456 let end = self
10457 .end
10458 .to_point(&map.buffer_snapshot)
10459 .to_display_point(map);
10460 if self.reversed {
10461 end..start
10462 } else {
10463 start..end
10464 }
10465 }
10466
10467 fn spanned_rows(
10468 &self,
10469 include_end_if_at_line_start: bool,
10470 map: &DisplaySnapshot,
10471 ) -> Range<u32> {
10472 let start = self.start.to_point(&map.buffer_snapshot);
10473 let mut end = self.end.to_point(&map.buffer_snapshot);
10474 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10475 end.row -= 1;
10476 }
10477
10478 let buffer_start = map.prev_line_boundary(start).0;
10479 let buffer_end = map.next_line_boundary(end).0;
10480 buffer_start.row..buffer_end.row + 1
10481 }
10482}
10483
10484impl<T: InvalidationRegion> InvalidationStack<T> {
10485 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10486 where
10487 S: Clone + ToOffset,
10488 {
10489 while let Some(region) = self.last() {
10490 let all_selections_inside_invalidation_ranges =
10491 if selections.len() == region.ranges().len() {
10492 selections
10493 .iter()
10494 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10495 .all(|(selection, invalidation_range)| {
10496 let head = selection.head().to_offset(buffer);
10497 invalidation_range.start <= head && invalidation_range.end >= head
10498 })
10499 } else {
10500 false
10501 };
10502
10503 if all_selections_inside_invalidation_ranges {
10504 break;
10505 } else {
10506 self.pop();
10507 }
10508 }
10509 }
10510}
10511
10512impl<T> Default for InvalidationStack<T> {
10513 fn default() -> Self {
10514 Self(Default::default())
10515 }
10516}
10517
10518impl<T> Deref for InvalidationStack<T> {
10519 type Target = Vec<T>;
10520
10521 fn deref(&self) -> &Self::Target {
10522 &self.0
10523 }
10524}
10525
10526impl<T> DerefMut for InvalidationStack<T> {
10527 fn deref_mut(&mut self) -> &mut Self::Target {
10528 &mut self.0
10529 }
10530}
10531
10532impl InvalidationRegion for SnippetState {
10533 fn ranges(&self) -> &[Range<Anchor>] {
10534 &self.ranges[self.active_index]
10535 }
10536}
10537
10538pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10539 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10540
10541 Arc::new(move |cx: &mut BlockContext| {
10542 let group_id: SharedString = cx.block_id.to_string().into();
10543
10544 let mut text_style = cx.text_style().clone();
10545 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10546
10547 h_flex()
10548 .id(cx.block_id)
10549 .group(group_id.clone())
10550 .relative()
10551 .size_full()
10552 .pl(cx.gutter_dimensions.width)
10553 .w(cx.max_width + cx.gutter_dimensions.width)
10554 .child(
10555 div()
10556 .flex()
10557 .w(cx.anchor_x - cx.gutter_dimensions.width)
10558 .flex_shrink(),
10559 )
10560 .child(div().flex().flex_shrink_0().child(
10561 StyledText::new(text_without_backticks.clone()).with_highlights(
10562 &text_style,
10563 code_ranges.iter().map(|range| {
10564 (
10565 range.clone(),
10566 HighlightStyle {
10567 font_weight: Some(FontWeight::BOLD),
10568 ..Default::default()
10569 },
10570 )
10571 }),
10572 ),
10573 ))
10574 .child(
10575 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10576 .icon_color(Color::Muted)
10577 .size(ButtonSize::Compact)
10578 .style(ButtonStyle::Transparent)
10579 .visible_on_hover(group_id)
10580 .on_click({
10581 let message = diagnostic.message.clone();
10582 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10583 })
10584 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10585 )
10586 .into_any_element()
10587 })
10588}
10589
10590pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10591 let mut text_without_backticks = String::new();
10592 let mut code_ranges = Vec::new();
10593
10594 if let Some(source) = &diagnostic.source {
10595 text_without_backticks.push_str(&source);
10596 code_ranges.push(0..source.len());
10597 text_without_backticks.push_str(": ");
10598 }
10599
10600 let mut prev_offset = 0;
10601 let mut in_code_block = false;
10602 for (ix, _) in diagnostic
10603 .message
10604 .match_indices('`')
10605 .chain([(diagnostic.message.len(), "")])
10606 {
10607 let prev_len = text_without_backticks.len();
10608 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10609 prev_offset = ix + 1;
10610 if in_code_block {
10611 code_ranges.push(prev_len..text_without_backticks.len());
10612 in_code_block = false;
10613 } else {
10614 in_code_block = true;
10615 }
10616 }
10617
10618 (text_without_backticks.into(), code_ranges)
10619}
10620
10621fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10622 match (severity, valid) {
10623 (DiagnosticSeverity::ERROR, true) => colors.error,
10624 (DiagnosticSeverity::ERROR, false) => colors.error,
10625 (DiagnosticSeverity::WARNING, true) => colors.warning,
10626 (DiagnosticSeverity::WARNING, false) => colors.warning,
10627 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10628 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10629 (DiagnosticSeverity::HINT, true) => colors.info,
10630 (DiagnosticSeverity::HINT, false) => colors.info,
10631 _ => colors.ignored,
10632 }
10633}
10634
10635pub fn styled_runs_for_code_label<'a>(
10636 label: &'a CodeLabel,
10637 syntax_theme: &'a theme::SyntaxTheme,
10638) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10639 let fade_out = HighlightStyle {
10640 fade_out: Some(0.35),
10641 ..Default::default()
10642 };
10643
10644 let mut prev_end = label.filter_range.end;
10645 label
10646 .runs
10647 .iter()
10648 .enumerate()
10649 .flat_map(move |(ix, (range, highlight_id))| {
10650 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10651 style
10652 } else {
10653 return Default::default();
10654 };
10655 let mut muted_style = style;
10656 muted_style.highlight(fade_out);
10657
10658 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10659 if range.start >= label.filter_range.end {
10660 if range.start > prev_end {
10661 runs.push((prev_end..range.start, fade_out));
10662 }
10663 runs.push((range.clone(), muted_style));
10664 } else if range.end <= label.filter_range.end {
10665 runs.push((range.clone(), style));
10666 } else {
10667 runs.push((range.start..label.filter_range.end, style));
10668 runs.push((label.filter_range.end..range.end, muted_style));
10669 }
10670 prev_end = cmp::max(prev_end, range.end);
10671
10672 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10673 runs.push((prev_end..label.text.len(), fade_out));
10674 }
10675
10676 runs
10677 })
10678}
10679
10680pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10681 let mut index = 0;
10682 let mut codepoints = text.char_indices().peekable();
10683
10684 std::iter::from_fn(move || {
10685 let start_index = index;
10686 while let Some((new_index, codepoint)) = codepoints.next() {
10687 index = new_index + codepoint.len_utf8();
10688 let current_upper = codepoint.is_uppercase();
10689 let next_upper = codepoints
10690 .peek()
10691 .map(|(_, c)| c.is_uppercase())
10692 .unwrap_or(false);
10693
10694 if !current_upper && next_upper {
10695 return Some(&text[start_index..index]);
10696 }
10697 }
10698
10699 index = text.len();
10700 if start_index < text.len() {
10701 return Some(&text[start_index..]);
10702 }
10703 None
10704 })
10705 .flat_map(|word| word.split_inclusive('_'))
10706 .flat_map(|word| word.split_inclusive('-'))
10707}
10708
10709trait RangeToAnchorExt {
10710 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10711}
10712
10713impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10714 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10715 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10716 }
10717}